include $(TOPDIR)/rules.mk
PKG_NAME:=hostapd
-PKG_VERSION:=0.5.8
+PKG_REV:=03ec0ec5cdb974d51a4a2a566bea4c4568138576
+PKG_VERSION:=20071107_$(PKG_REV)
PKG_RELEASE:=1
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_SOURCE_URL:=http://hostap.epitest.fi/releases/
-PKG_MD5SUM:=40416b48cae9c78e5a2452caf214aff3
-
-PKG_BUILD_DEPENDS:=madwifi
+PKG_SOURCE_URL:=git://w1.fi/srv/git/hostap.git
+PKG_SOURCE_SUBDIR:=hostapd-$(PKG_VERSION)
+PKG_SOURCE_VERSION:=$(PKG_REV)
+PKG_BUILD_DEPENDS:=madwifi mac80211
include $(INCLUDE_DIR)/package.mk
CATEGORY:=Network
TITLE:=IEEE 802.1x Authenticator
URL:=http://hostap.epitest.fi/
- DEPENDS:=@!TARGET_avr32 @!TARGET_etrax
+ DEPENDS:=@!TARGET_avr32 @!TARGET_etrax $(if $(DUMP)$(CONFIG_LINUX_2_6_23),+libnl)
endef
define Package/hostapd
DEPENDS+= +libopenssl
endef
-define Package/hostapd/conffiles
-/etc/hostapd.conf
-endef
+#define Package/hostapd/conffiles
+#/etc/hostapd.conf
+#endef
define Package/hostapd/description
This package contains a full featured IEEE 802.1x/WPA/EAP/RADIUS
TITLE+= (WPA-PSK only)
endef
-define Package/hostapd-mini/conffiles
-/etc/hostapd.conf
-endef
+#define Package/hostapd-mini/conffiles
+#/etc/hostapd.conf
+#endef
define Package/hostapd-mini/description
This package contains a minimal IEEE 802.1x/WPA/EAP/RADIUS Authenticator
endef
define Build/ConfigureTarget
- $(CP) $(PKG_BUILD_DIR) $(PKG_BUILD_DIR)_$(1)
- $(CP) ./files/$(1).config $(PKG_BUILD_DIR)_$(1)/.config
-ifneq ($(CONFIG_PACKAGE_kmod-madwifi),)
- echo "CONFIG_DRIVER_MADWIFI=y" >> $(PKG_BUILD_DIR)_$(1)/.config
-endif
+ rm -rf $(PKG_BUILD_DIR)/hostapd.$(1)
+ $(CP) $(PKG_BUILD_DIR)/hostapd $(PKG_BUILD_DIR)/hostapd.$(1)
+ $(CP) ./files/$(1).config $(PKG_BUILD_DIR)/hostapd.$(1)/.config
+ [ -d $(STAGING_DIR)/usr/include/mac80211 ] || $(SED) 's,^CONFIG_DRIVER_DEVICESCAPE,#CONFIG_DRIVER_DEVICESCAPE,g' $(PKG_BUILD_DIR)/hostapd.$(1)/.config
+ [ -d $(STAGING_DIR)/usr/include/madwifi ] || $(SED) 's,^CONFIG_DRIVER_MADWIFI,#CONFIG_DRIVER_MADWIFI,g' $(PKG_BUILD_DIR)/hostapd.$(1)/.config
endef
define Build/CompileTarget
- $(MAKE) -C $(PKG_BUILD_DIR)_$(1) \
+ CFLAGS="$(TARGET_CFLAGS) -I$(STAGING_DIR)/usr/include/madwifi -I$(STAGING_DIR)/usr/include/mac80211 -I$(STAGING_DIR)/usr/include" \
+ $(MAKE) -C $(PKG_BUILD_DIR)/hostapd.$(1) \
$(TARGET_CONFIGURE_OPTS) \
- OPTFLAGS="$(TARGET_CFLAGS)" \
- CPPFLAGS="$(TARGET_CPPFLAGS) -I$(STAGING_DIR)/usr/include/madwifi" \
- LDFLAGS="$(TARGET_LDFLAGS)" \
+ LIBS="$(TARGET_LDFLAGS) -L$(STAGING_DIR)/usr/lib \
+ $(if $(wildcard $(STAGING_DIR)/usr/include/mac80211/*),-lnl)" \
hostapd hostapd_cli
- $(CP) $(PKG_BUILD_DIR)_$(1)/hostapd_cli $(PKG_BUILD_DIR)/
+ $(CP) $(PKG_BUILD_DIR)/hostapd.$(1)/hostapd_cli $(PKG_BUILD_DIR)/
endef
define Package/InstallTemplate
- if [ \! -f "$(PKG_BUILD_DIR)_$(2)/hostapd" ]; then \
- rm -f $(PKG_BUILD_DIR)/.built; \
- $(MAKE) $(PKG_BUILD_DIR)/.built; \
- fi
$(INSTALL_DIR) $$(1)/lib/wifi
$(INSTALL_DATA) ./files/hostapd.sh $$(1)/lib/wifi/hostapd.sh
- $(INSTALL_DIR) $$(1)/etc
-ifneq ($(CONFIG_PACKAGE_kmod-madwifi),)
- $(INSTALL_CONF) $(PKG_BUILD_DIR)_$(2)/madwifi.conf $$(1)/etc/hostapd.conf
-else
- $(INSTALL_CONF) $(PKG_BUILD_DIR)_$(2)/hostapd.conf $$(1)/etc/hostapd.conf
-endif
+# config is managed through uci
+# $(INSTALL_DIR) $$(1)/etc
+# $(INSTALL_CONF) $(PKG_BUILD_DIR)/hostapd.$(2)/hostapd.conf $$(1)/etc/hostapd.conf
$(INSTALL_DIR) $$(1)/usr/sbin
- $(INSTALL_BIN) $(PKG_BUILD_DIR)_$(2)/hostapd $$(1)/usr/sbin/
+ $(INSTALL_BIN) $(PKG_BUILD_DIR)/hostapd.$(2)/hostapd $$(1)/usr/sbin/
endef
define Package/Template
CONFIG_DRIVER_HOSTAP=y
# Driver interface for wired authenticator
-#CONFIG_DRIVER_WIRED=y
+CONFIG_DRIVER_WIRED=y
# Driver interface for madwifi driver
-#CONFIG_DRIVER_MADWIFI=y
+CONFIG_DRIVER_MADWIFI=y
#CFLAGS += -I../head # change to reflect local setup; directory for madwifi src
# Driver interface for Prism54 driver
#CONFIG_DRIVER_PRISM54=y
+# Driver interface for drivers using Devicescape IEEE 802.11 stack
+CONFIG_DRIVER_DEVICESCAPE=y
+# Currently, driver_devicescape.c build requires some additional parameters
+# to be able to include some of the kernel header files. Following lines can
+# be used to set these (WIRELESS_DEV must point to the root directory of the
+# wireless-dev.git tree).
+#WIRELESS_DEV=/usr/src/wireless-dev
+#CFLAGS += -I$(WIRELESS_DEV)/net/mac80211
+# driver_devicescape.c requires a rather new libnl, probably not
+# shipped with your distribution yet
+#LIBNL=/usr/src/libnl
+#CFLAGS += -I$(LIBNL)/include
+#LIBS += -L$(LIBNL)/lib
+
# Driver interface for FreeBSD net80211 layer (e.g., Atheros driver)
#CONFIG_DRIVER_BSD=y
#CFLAGS += -I/usr/local/include
# WPA2/IEEE 802.11i RSN pre-authentication
CONFIG_RSN_PREAUTH=y
-# Integrated EAP authenticator
+# PeerKey handshake for Station to Station Link (IEEE 802.11e DLS)
+CONFIG_PEERKEY=y
+
+# IEEE 802.11w (management frame protection)
+# This version is an experimental implementation based on IEEE 802.11w/D1.0
+# draft and is subject to change since the standard has not yet been finalized.
+# Driver support is also needed for IEEE 802.11w.
+#CONFIG_IEEE80211W=y
+
+# Integrated EAP server
CONFIG_EAP=y
-# EAP-MD5 for the integrated EAP authenticator
+# EAP-MD5 for the integrated EAP server
CONFIG_EAP_MD5=y
-# EAP-TLS for the integrated EAP authenticator
+# EAP-TLS for the integrated EAP server
CONFIG_EAP_TLS=y
-# EAP-MSCHAPv2 for the integrated EAP authenticator
+# EAP-MSCHAPv2 for the integrated EAP server
CONFIG_EAP_MSCHAPV2=y
-# EAP-PEAP for the integrated EAP authenticator
+# EAP-PEAP for the integrated EAP server
CONFIG_EAP_PEAP=y
-# EAP-PSK for the integrated EAP authenticator
-CONFIG_EAP_PSK=y
-
-# EAP-GTC for the integrated EAP authenticator
+# EAP-GTC for the integrated EAP server
CONFIG_EAP_GTC=y
-# EAP-TTLS for the integrated EAP authenticator
+# EAP-TTLS for the integrated EAP server
CONFIG_EAP_TTLS=y
-# EAP-SIM for the integrated EAP authenticator
+# EAP-SIM for the integrated EAP server
#CONFIG_EAP_SIM=y
+# EAP-AKA for the integrated EAP server
+#CONFIG_EAP_AKA=y
+
+# EAP-PAX for the integrated EAP server
+#CONFIG_EAP_PAX=y
+
+# EAP-PSK for the integrated EAP server (this is _not_ needed for WPA-PSK)
+#CONFIG_EAP_PSK=y
+
+# EAP-SAKE for the integrated EAP server
+#CONFIG_EAP_SAKE=y
+
+# EAP-GPSK for the integrated EAP server
+#CONFIG_EAP_GPSK=y
+# Include support for optional SHA256 cipher suite in EAP-GPSK
+#CONFIG_EAP_GPSK_SHA256=y
+
+# EAP-FAST for the integrated EAP server
+# Note: Default OpenSSL package does not include support for all the
+# functionality needed for EAP-FAST. If EAP-FAST is enabled with OpenSSL,
+# the OpenSSL library must be patched (openssl-0.9.9-session-ticket.patch)
+# to add the needed functions.
+#CONFIG_EAP_FAST=y
+
# PKCS#12 (PFX) support (used to read private key and certificate file from
# a file that usually has extension .p12 or .pfx)
CONFIG_PKCS12=y
# RADIUS authentication server. This provides access to the integrated EAP
-# authenticator from external hosts using RADIUS.
+# server from external hosts using RADIUS.
#CONFIG_RADIUS_SERVER=y
+
+# Build IPv6 support for RADIUS operations
+CONFIG_IPV6=y
+
+# IEEE 802.11r/D4.1 (Fast BSS Transition)
+# This enables an experimental implementation of a draft version of
+# IEEE 802.11r. This draft is still subject to change, so it should be noted
+# that this version may not comply with the final standard.
+#CONFIG_IEEE80211R=y
CONFIG_DRIVER_HOSTAP=y
# Driver interface for wired authenticator
-#CONFIG_DRIVER_WIRED=y
+CONFIG_DRIVER_WIRED=y
# Driver interface for madwifi driver
-#CONFIG_DRIVER_MADWIFI=y
+CONFIG_DRIVER_MADWIFI=y
#CFLAGS += -I../head # change to reflect local setup; directory for madwifi src
# Driver interface for Prism54 driver
#CONFIG_DRIVER_PRISM54=y
+# Driver interface for drivers using Devicescape IEEE 802.11 stack
+CONFIG_DRIVER_DEVICESCAPE=y
+# Currently, driver_devicescape.c build requires some additional parameters
+# to be able to include some of the kernel header files. Following lines can
+# be used to set these (WIRELESS_DEV must point to the root directory of the
+# wireless-dev.git tree).
+#WIRELESS_DEV=/usr/src/wireless-dev
+#CFLAGS += -I$(WIRELESS_DEV)/net/mac80211
+# driver_devicescape.c requires a rather new libnl, probably not
+# shipped with your distribution yet
+#LIBNL=/usr/src/libnl
+#CFLAGS += -I$(LIBNL)/include
+#LIBS += -L$(LIBNL)/lib
+
# Driver interface for FreeBSD net80211 layer (e.g., Atheros driver)
#CONFIG_DRIVER_BSD=y
#CFLAGS += -I/usr/local/include
# WPA2/IEEE 802.11i RSN pre-authentication
CONFIG_RSN_PREAUTH=y
-# Integrated EAP authenticator
-CONFIG_EAP=y
+# PeerKey handshake for Station to Station Link (IEEE 802.11e DLS)
+CONFIG_PEERKEY=y
+
+# IEEE 802.11w (management frame protection)
+# This version is an experimental implementation based on IEEE 802.11w/D1.0
+# draft and is subject to change since the standard has not yet been finalized.
+# Driver support is also needed for IEEE 802.11w.
+#CONFIG_IEEE80211W=y
+
+# Integrated EAP server
+#CONFIG_EAP=y
-# EAP-MD5 for the integrated EAP authenticator
+# EAP-MD5 for the integrated EAP server
#CONFIG_EAP_MD5=y
-# EAP-TLS for the integrated EAP authenticator
+# EAP-TLS for the integrated EAP server
#CONFIG_EAP_TLS=y
-# EAP-MSCHAPv2 for the integrated EAP authenticator
+# EAP-MSCHAPv2 for the integrated EAP server
#CONFIG_EAP_MSCHAPV2=y
-# EAP-PEAP for the integrated EAP authenticator
+# EAP-PEAP for the integrated EAP server
#CONFIG_EAP_PEAP=y
-# EAP-PSK for the integrated EAP authenticator
-CONFIG_EAP_PSK=y
-
-# EAP-GTC for the integrated EAP authenticator
+# EAP-GTC for the integrated EAP server
#CONFIG_EAP_GTC=y
-# EAP-TTLS for the integrated EAP authenticator
+# EAP-TTLS for the integrated EAP server
#CONFIG_EAP_TTLS=y
-# EAP-SIM for the integrated EAP authenticator
+# EAP-SIM for the integrated EAP server
#CONFIG_EAP_SIM=y
+# EAP-AKA for the integrated EAP server
+#CONFIG_EAP_AKA=y
+
+# EAP-PAX for the integrated EAP server
+#CONFIG_EAP_PAX=y
+
+# EAP-PSK for the integrated EAP server (this is _not_ needed for WPA-PSK)
+#CONFIG_EAP_PSK=y
+
+# EAP-SAKE for the integrated EAP server
+#CONFIG_EAP_SAKE=y
+
+# EAP-GPSK for the integrated EAP server
+#CONFIG_EAP_GPSK=y
+# Include support for optional SHA256 cipher suite in EAP-GPSK
+#CONFIG_EAP_GPSK_SHA256=y
+
+# EAP-FAST for the integrated EAP server
+# Note: Default OpenSSL package does not include support for all the
+# functionality needed for EAP-FAST. If EAP-FAST is enabled with OpenSSL,
+# the OpenSSL library must be patched (openssl-0.9.9-session-ticket.patch)
+# to add the needed functions.
+#CONFIG_EAP_FAST=y
+
# PKCS#12 (PFX) support (used to read private key and certificate file from
# a file that usually has extension .p12 or .pfx)
#CONFIG_PKCS12=y
# RADIUS authentication server. This provides access to the integrated EAP
-# authenticator from external hosts using RADIUS.
+# server from external hosts using RADIUS.
#CONFIG_RADIUS_SERVER=y
+
+# Build IPv6 support for RADIUS operations
+#CONFIG_IPV6=y
+
+# IEEE 802.11r/D4.1 (Fast BSS Transition)
+# This enables an experimental implementation of a draft version of
+# IEEE 802.11r. This draft is still subject to change, so it should be noted
+# that this version may not comply with the final standard.
+#CONFIG_IEEE80211R=y
+++ /dev/null
-Common subdirectories: hostapd-0.5.2/logwatch and hostapd-0.5.2.new/logwatch
-Index: hostapd-0.5.7/Makefile
-===================================================================
---- hostapd-0.5.7.orig/Makefile 2007-06-04 13:22:31.790022464 +0200
-+++ hostapd-0.5.7/Makefile 2007-06-04 13:22:31.856012432 +0200
-@@ -2,7 +2,7 @@
- DIR_WPA_SUPPLICANT=.
-
- ifndef CFLAGS
--CFLAGS = -MMD -O2 -Wall -g
-+CFLAGS = -MMD $(OPTFLAGS) $(CPPFLAGS)
- endif
-
- # define HOSTAPD_DUMP_STATE to include SIGUSR1 handler for dumping state to
-@@ -336,7 +336,7 @@
- for i in $(ALL); do cp $$i /usr/local/bin/$$i; done
-
- hostapd: $(OBJS)
-- $(CC) -o hostapd $(OBJS) $(LIBS)
-+ $(CC) -o hostapd $(OBJS) $(LDFLAGS) $(LIBS)
-
- driver_conf.c: Makefile .config
- rm -f driver_conf.c
-@@ -400,10 +400,10 @@
- endif
-
- nt_password_hash: $(NOBJS)
-- $(CC) -o nt_password_hash $(NOBJS) $(LIBS_n)
-+ $(CC) -o nt_password_hash $(NOBJS) $(LDFLAGS) $(LIBS_n)
-
- hlr_auc_gw: $(HOBJS)
-- $(CC) -o hlr_auc_gw $(HOBJS) $(LIBS_h)
-+ $(CC) -o hlr_auc_gw $(HOBJS) $(LDFLAGS) $(LIBS_h)
-
- clean:
- rm -f core *~ *.o hostapd hostapd_cli nt_password_hash hlr_auc_gw
--- /dev/null
+---
+ hostapd/driver_devicescape.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- hostap.orig/hostapd/driver_devicescape.c 2007-11-09 13:41:08.000000000 +0100
++++ hostap/hostapd/driver_devicescape.c 2007-11-09 13:41:12.000000000 +0100
+@@ -1386,10 +1386,10 @@ static void handle_frame(struct hostapd_
+ case ieee80211_msg_wep_frame_unknown_key:
+ ieee802_11_rx_unknown_key(hapd, buf, data_len);
+ return;
+- */
+ case ieee80211_msg_michael_mic_failure:
+ hostapd_michael_mic_failure(hapd, buf, data_len);
+ return;
++ */
+ /*
+ * TODO
+ * We should be telling them to go away. But we don't support that now.
--- /dev/null
+---
+ hostapd/driver_devicescape.c | 93 ++++++++++++++++++++++++++++++-------------
+ 1 file changed, 67 insertions(+), 26 deletions(-)
+
+--- hostap.orig/hostapd/driver_devicescape.c 2007-11-09 13:41:12.000000000 +0100
++++ hostap/hostapd/driver_devicescape.c 2007-11-09 13:41:13.000000000 +0100
+@@ -150,38 +150,79 @@ static int i802_set_encryption(const cha
+ size_t key_len, int txkey)
+ {
+ struct i802_driver_data *drv = priv;
+- struct prism2_hostapd_param *param;
+- u8 *buf;
+- size_t blen;
+- int ret = 0;
++ struct nl_msg *msg;
++ int ret = -1;
++ int err = 0;
+
+- blen = sizeof(*param) + key_len;
+- buf = os_zalloc(blen);
+- if (buf == NULL)
+- return -1;
++ msg = nlmsg_alloc();
++ if (!msg)
++ goto out;
+
+- param = (struct prism2_hostapd_param *) buf;
+- param->cmd = PRISM2_SET_ENCRYPTION;
+- if (addr == NULL)
+- memset(param->sta_addr, 0xff, ETH_ALEN);
+- else
+- memcpy(param->sta_addr, addr, ETH_ALEN);
+- os_strlcpy((char *) param->u.crypt.alg, alg,
+- HOSTAP_CRYPT_ALG_NAME_LEN);
+- param->u.crypt.flags = txkey ? HOSTAP_CRYPT_FLAG_SET_TX_KEY : 0;
+- param->u.crypt.idx = idx;
+- param->u.crypt.key_len = key_len;
+- memcpy(param->u.crypt.key, key, key_len);
++ if (strcmp(alg, "none") == 0) {
++ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++ 0, NL80211_CMD_DEL_KEY, 0);
++ } else {
++ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++ 0, NL80211_CMD_NEW_KEY, 0);
++ NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
++ if (strcmp(alg, "WEP") == 0) {
++ if (key_len == 5)
++ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
++ 0x000FAC01);
++ else
++ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
++ 0x000FAC05);
++ } else if (strcmp(alg, "TKIP") == 0)
++ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC02);
++ else if (strcmp(alg, "CCMP") == 0)
++ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC04);
++ else
++ goto out;
++ }
+
+- if (hostapd_ioctl_iface(iface, drv, param, blen) && errno != ENOENT) {
+- printf("%s: Failed to set encryption to alg '%s' addr " MACSTR
+- " errno=%d\n",
+- iface, alg, MAC2STR(param->sta_addr), errno);
+- ret = -1;
++ if (addr)
++ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
++ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
++
++ if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++ (err = nl_wait_for_ack(drv->nl_handle)) < 0) {
++ if (err != -ENOENT) {
++ err = 0;
++ goto out;
++ }
+ }
+
+- free(buf);
++ if (!txkey) {
++ ret = 0;
++ goto out;
++ }
++
++ nlmsg_free(msg);
++
++ msg = nlmsg_alloc();
++ if (!msg)
++ goto out;
+
++ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++ 0, NL80211_CMD_SET_KEY, 0);
++ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
++ NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
++
++ if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++ (err = nl_wait_for_ack(drv->nl_handle)) < 0) {
++ if (err != -ENOENT) {
++ err = 0;
++ goto out;
++ }
++ }
++
++ ret = 0;
++
++ out:
++ nla_put_failure:
++ nlmsg_free(msg);
+ return ret;
+ }
+
--- /dev/null
+---
+ hostapd/driver_devicescape.c | 111 +++++++++++++++++++++++++++++++------------
+ 1 file changed, 82 insertions(+), 29 deletions(-)
+
+--- hostap.orig/hostapd/driver_devicescape.c 2007-11-09 13:41:13.000000000 +0100
++++ hostap/hostapd/driver_devicescape.c 2007-11-09 13:41:13.000000000 +0100
+@@ -68,6 +68,8 @@ struct i802_driver_data {
+ struct nl_handle *nl_handle;
+ struct nl_cache *nl_cache;
+ struct genl_family *nl80211;
++ int dtim_period;
++ unsigned int beacon_set:1;
+ };
+
+
+@@ -908,37 +910,44 @@ static int i802_bss_remove(void *priv, c
+ }
+
+
+-static int i802_set_beacon(const char *ifname, void *priv,
++static int i802_set_beacon(const char *iface, void *priv,
+ u8 *head, size_t head_len,
+ u8 *tail, size_t tail_len)
+ {
+ struct i802_driver_data *drv = priv;
+- struct prism2_hostapd_param *param;
+- int len, ret = 0;
++ struct nl_msg *msg;
++ u8 cmd = NL80211_CMD_NEW_BEACON;
++ int ret = -1;
+
+- param = os_zalloc(sizeof(*param) + head_len + tail_len);
+- if (param == NULL) {
+- printf("Failed to alloc memory for beacon ioctl\n");
+- return -1;
+- }
+- len = (¶m->u.beacon.data[0] - (u8 *) param) + head_len + tail_len;
+- param->cmd = PRISM2_HOSTAPD_SET_BEACON;
+- param->u.beacon.head_len = head_len;
+- param->u.beacon.tail_len = tail_len;
+- memcpy(¶m->u.beacon.data[0], head, head_len);
+- memcpy(¶m->u.beacon.data[0] + head_len, tail, tail_len);
+-
+- if (len < (int) sizeof(*param))
+- len = sizeof(*param);
+- if (hostapd_ioctl_iface(ifname, drv, param, len)) {
+- printf("Could not set beacon data to kernel driver.\n");
+- printf("ifname='%s' head=%p head_len=%d tail=%p tail_len=%d "
+- "cmd=%d\n",
+- ifname, head, head_len, tail, tail_len, param->cmd);
+- ret = -1;
+- }
++ msg = nlmsg_alloc();
++ if (!msg)
++ goto out;
+
+- free(param);
++ if (drv->beacon_set)
++ cmd = NL80211_CMD_SET_BEACON;
++
++ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++ 0, cmd, 0);
++ NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
++ NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
++ NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, 1000);
++
++ if (!drv->dtim_period)
++ drv->dtim_period = 2;
++ NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, drv->dtim_period);
++
++ if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++ nl_wait_for_ack(drv->nl_handle) < 0)
++ goto out;
++
++ ret = 0;
++
++ drv->beacon_set = 1;
++
++ out:
++ nla_put_failure:
++ nlmsg_free(msg);
+ return ret;
+ }
+
+@@ -985,15 +994,59 @@ static int i802_set_internal_bridge(void
+ static int i802_set_beacon_int(void *priv, int value)
+ {
+ struct i802_driver_data *drv = priv;
+- return hostap_ioctl_prism2param(drv, PRISM2_PARAM_BEACON_INT, value);
++ struct nl_msg *msg;
++ int ret = -1;
++
++ msg = nlmsg_alloc();
++ if (!msg)
++ goto out;
++
++ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++ 0, NL80211_CMD_SET_BEACON, 0);
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
++
++ NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, value);
++
++ if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++ nl_wait_for_ack(drv->nl_handle) < 0)
++ goto out;
++
++ ret = 0;
++
++ out:
++ nla_put_failure:
++ nlmsg_free(msg);
++ return ret;
+ }
+
+
+-static int i802_set_dtim_period(const char *ifname, void *priv, int value)
++static int i802_set_dtim_period(const char *iface, void *priv, int value)
+ {
+ struct i802_driver_data *drv = priv;
+- return hostap_ioctl_prism2param_iface(ifname, drv,
+- PRISM2_PARAM_DTIM_PERIOD, value);
++ struct nl_msg *msg;
++ int ret = -1;
++
++ msg = nlmsg_alloc();
++ if (!msg)
++ goto out;
++
++ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++ 0, NL80211_CMD_SET_BEACON, 0);
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
++
++ drv->dtim_period = value;
++ NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, drv->dtim_period);
++
++ if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++ nl_wait_for_ack(drv->nl_handle) < 0)
++ goto out;
++
++ ret = 0;
++
++ out:
++ nla_put_failure:
++ nlmsg_free(msg);
++ return ret;
+ }
+
+
--- /dev/null
+---
+ hostapd/driver_devicescape.c | 96 ++++++++++++++++++++++++++++++++++---------
+ 1 file changed, 76 insertions(+), 20 deletions(-)
+
+--- hostap.orig/hostapd/driver_devicescape.c 2007-11-09 13:41:13.000000000 +0100
++++ hostap/hostapd/driver_devicescape.c 2007-11-09 13:41:14.000000000 +0100
+@@ -228,33 +228,89 @@ static int i802_set_encryption(const cha
+ return ret;
+ }
+
++static inline int min_int(int a, int b)
++{
++ if (a<b)
++ return a;
++ return b;
++}
++
++static int get_key_handler(struct nl_msg *msg, void *arg)
++{
++ struct nlattr *tb[NL80211_ATTR_MAX];
++ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
++
++ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
++ genlmsg_attrlen(gnlh, 0), NULL);
++
++ /*
++ * TODO: validate the key index and mac address!
++ * Otherwise, there's a race condition as soon as
++ * the kernel starts sending key notifications.
++ */
++
++ if (tb[NL80211_ATTR_KEY_SEQ])
++ memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
++ min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
++ return NL_SKIP;
++}
++
++static int ack_wait_handler(struct nl_msg *msg, void *arg)
++{
++ int *finished = arg;
++
++ *finished = 1;
++ return NL_STOP;
++}
+
+ static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
+ int idx, u8 *seq)
+ {
+ struct i802_driver_data *drv = priv;
+- struct prism2_hostapd_param *param;
+- size_t param_len;
+- int ret;
++ struct nl_msg *msg;
++ struct nl_cb *cb = NULL;
++ int ret = -1;
++ int err = 0;
++ int finished = 0;
+
+- param_len = sizeof(struct prism2_hostapd_param) + 32;
+- param = os_zalloc(param_len);
+- if (param == NULL)
+- return -1;
++ msg = nlmsg_alloc();
++ if (!msg)
++ goto out;
+
+- param->cmd = PRISM2_GET_ENCRYPTION;
+- if (addr == NULL)
+- memset(param->sta_addr, 0xff, ETH_ALEN);
+- else
+- memcpy(param->sta_addr, addr, ETH_ALEN);
+- param->u.crypt.idx = idx;
+-
+- ret = hostapd_ioctl_iface(iface, drv, param, param_len);
+- if (ret == 0) {
+- memcpy(seq, param->u.crypt.seq_counter,
+- HOSTAP_SEQ_COUNTER_SIZE);
+- }
+- free(param);
++ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++ 0, NL80211_CMD_GET_KEY, 0);
++
++ if (addr)
++ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
++ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
++
++ cb = nl_cb_alloc(NL_CB_CUSTOM);
++ if (!cb)
++ goto out;
++
++ memset(seq, 0, 6);
++
++ if (nl_send_auto_complete(drv->nl_handle, msg) < 0)
++ goto out;
++
++ nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, get_key_handler, seq);
++ nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_wait_handler, &finished);
++
++ err = nl_recvmsgs(drv->nl_handle, cb);
++
++ if (!finished)
++ err = nl_wait_for_ack(drv->nl_handle);
++
++ if (err < 0)
++ goto out;
++
++ ret = 0;
++
++ out:
++ nl_cb_put(cb);
++ nla_put_failure:
++ nlmsg_free(msg);
+ return ret;
+ }
+
--- /dev/null
+---
+ hostapd/driver.h | 8 ++++----
+ hostapd/driver_bsd.c | 3 ++-
+ hostapd/driver_devicescape.c | 6 +++---
+ hostapd/driver_hostap.c | 4 ++--
+ hostapd/driver_madwifi.c | 3 ++-
+ hostapd/driver_prism54.c | 3 ++-
+ hostapd/ieee802_11.c | 4 ++--
+ hostapd/ieee802_1x.c | 4 ++--
+ hostapd/wme.c | 6 ++++--
+ 9 files changed, 23 insertions(+), 18 deletions(-)
+
+--- hostap.orig/hostapd/driver.h 2007-11-09 13:41:07.000000000 +0100
++++ hostap/hostapd/driver.h 2007-11-09 13:41:15.000000000 +0100
+@@ -92,7 +92,7 @@ struct wpa_driver_ops {
+ int (*get_retry)(void *priv, int *short_retry, int *long_retry);
+
+ int (*sta_set_flags)(void *priv, const u8 *addr,
+- int flags_or, int flags_and);
++ int total_flags, int flags_or, int flags_and);
+ int (*set_rate_sets)(void *priv, int *supp_rates, int *basic_rates,
+ int mode);
+ int (*set_channel_flag)(void *priv, int mode, int chan, int flag,
+@@ -427,12 +427,12 @@ hostapd_get_retry(struct hostapd_data *h
+
+ static inline int
+ hostapd_sta_set_flags(struct hostapd_data *hapd, u8 *addr,
+- int flags_or, int flags_and)
++ int total_flags, int flags_or, int flags_and)
+ {
+ if (hapd->driver == NULL || hapd->driver->sta_set_flags == NULL)
+ return 0;
+- return hapd->driver->sta_set_flags(hapd->drv_priv, addr, flags_or,
+- flags_and);
++ return hapd->driver->sta_set_flags(hapd->drv_priv, addr, total_flags,
++ flags_or, flags_and);
+ }
+
+ static inline int
+--- hostap.orig/hostapd/driver_bsd.c 2007-11-09 13:41:07.000000000 +0100
++++ hostap/hostapd/driver_bsd.c 2007-11-09 13:41:15.000000000 +0100
+@@ -322,7 +322,8 @@ bsd_set_sta_authorized(void *priv, const
+ }
+
+ static int
+-bsd_sta_set_flags(void *priv, const u8 *addr, int flags_or, int flags_and)
++bsd_sta_set_flags(void *priv, const u8 *addr, int total_flags, int flags_or,
++ int flags_and)
+ {
+ /* For now, only support setting Authorized flag */
+ if (flags_or & WLAN_STA_AUTHORIZED)
+--- hostap.orig/hostapd/driver_devicescape.c 2007-11-09 13:41:14.000000000 +0100
++++ hostap/hostapd/driver_devicescape.c 2007-11-09 13:41:15.000000000 +0100
+@@ -76,7 +76,7 @@ struct i802_driver_data {
+ #define HAPD_DECL struct hostapd_data *hapd = iface->bss[0]
+
+ static int i802_sta_set_flags(void *priv, const u8 *addr,
+- int flags_or, int flags_and);
++ int total_flags, int flags_or, int flags_and);
+
+
+ static int hostapd_set_iface_flags(struct i802_driver_data *drv, int dev_up)
+@@ -765,7 +765,7 @@ static int i802_sta_remove(void *priv, c
+ struct i802_driver_data *drv = priv;
+ struct prism2_hostapd_param param;
+
+- i802_sta_set_flags(drv, addr, 0, ~WLAN_STA_AUTHORIZED);
++ i802_sta_set_flags(drv, addr, 0, 0, ~WLAN_STA_AUTHORIZED);
+
+ memset(¶m, 0, sizeof(param));
+ param.cmd = PRISM2_HOSTAPD_REMOVE_STA;
+@@ -777,7 +777,7 @@ static int i802_sta_remove(void *priv, c
+
+
+ static int i802_sta_set_flags(void *priv, const u8 *addr,
+- int flags_or, int flags_and)
++ int total_flags, int flags_or, int flags_and)
+ {
+ struct i802_driver_data *drv = priv;
+ struct prism2_hostapd_param param;
+--- hostap.orig/hostapd/driver_hostap.c 2007-11-09 13:41:07.000000000 +0100
++++ hostap/hostapd/driver_hostap.c 2007-11-09 13:41:15.000000000 +0100
+@@ -374,7 +374,7 @@ static int hostap_send_eapol(void *priv,
+
+
+ static int hostap_sta_set_flags(void *priv, const u8 *addr,
+- int flags_or, int flags_and)
++ int total_flags, int flags_or, int flags_and)
+ {
+ struct hostap_driver_data *drv = priv;
+ struct prism2_hostapd_param param;
+@@ -694,7 +694,7 @@ static int hostap_sta_remove(void *priv,
+ struct hostap_driver_data *drv = priv;
+ struct prism2_hostapd_param param;
+
+- hostap_sta_set_flags(drv, addr, 0, ~WLAN_STA_AUTHORIZED);
++ hostap_sta_set_flags(drv, addr, 0, 0, ~WLAN_STA_AUTHORIZED);
+
+ memset(¶m, 0, sizeof(param));
+ param.cmd = PRISM2_HOSTAPD_REMOVE_STA;
+--- hostap.orig/hostapd/driver_madwifi.c 2007-11-09 13:41:07.000000000 +0100
++++ hostap/hostapd/driver_madwifi.c 2007-11-09 13:41:15.000000000 +0100
+@@ -410,7 +410,8 @@ madwifi_set_sta_authorized(void *priv, c
+ }
+
+ static int
+-madwifi_sta_set_flags(void *priv, const u8 *addr, int flags_or, int flags_and)
++madwifi_sta_set_flags(void *priv, const u8 *addr, int total_flags,
++ int flags_or, int flags_and)
+ {
+ /* For now, only support setting Authorized flag */
+ if (flags_or & WLAN_STA_AUTHORIZED)
+--- hostap.orig/hostapd/driver_prism54.c 2007-11-09 13:41:07.000000000 +0100
++++ hostap/hostapd/driver_prism54.c 2007-11-09 13:41:15.000000000 +0100
+@@ -187,7 +187,8 @@ static int prism54_set_sta_authorized(vo
+
+
+ static int
+-prism54_sta_set_flags(void *priv, const u8 *addr, int flags_or, int flags_and)
++prism54_sta_set_flags(void *priv, const u8 *addr, int total_flags,
++ int flags_or, int flags_and)
+ {
+ /* For now, only support setting Authorized flag */
+ if (flags_or & WLAN_STA_AUTHORIZED)
+--- hostap.orig/hostapd/ieee802_11.c 2007-11-09 13:41:07.000000000 +0100
++++ hostap/hostapd/ieee802_11.c 2007-11-09 13:41:15.000000000 +0100
+@@ -1625,10 +1625,10 @@ static void handle_assoc_cb(struct hosta
+ ap_sta_bind_vlan(hapd, sta, 0);
+ }
+ if (sta->flags & WLAN_STA_SHORT_PREAMBLE) {
+- hostapd_sta_set_flags(hapd, sta->addr,
++ hostapd_sta_set_flags(hapd, sta->addr, sta->flags,
+ WLAN_STA_SHORT_PREAMBLE, ~0);
+ } else {
+- hostapd_sta_set_flags(hapd, sta->addr,
++ hostapd_sta_set_flags(hapd, sta->addr, sta->flags,
+ 0, ~WLAN_STA_SHORT_PREAMBLE);
+ }
+
+--- hostap.orig/hostapd/ieee802_1x.c 2007-11-09 13:41:07.000000000 +0100
++++ hostap/hostapd/ieee802_1x.c 2007-11-09 13:41:15.000000000 +0100
+@@ -94,13 +94,13 @@ void ieee802_1x_set_sta_authorized(struc
+
+ if (authorized) {
+ sta->flags |= WLAN_STA_AUTHORIZED;
+- res = hostapd_sta_set_flags(hapd, sta->addr,
++ res = hostapd_sta_set_flags(hapd, sta->addr, sta->flags,
+ WLAN_STA_AUTHORIZED, ~0);
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG, "authorizing port");
+ } else {
+ sta->flags &= ~WLAN_STA_AUTHORIZED;
+- res = hostapd_sta_set_flags(hapd, sta->addr,
++ res = hostapd_sta_set_flags(hapd, sta->addr, sta->flags,
+ 0, ~WLAN_STA_AUTHORIZED);
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG, "unauthorizing port");
+--- hostap.orig/hostapd/wme.c 2007-11-09 13:41:07.000000000 +0100
++++ hostap/hostapd/wme.c 2007-11-09 13:41:15.000000000 +0100
+@@ -110,9 +110,11 @@ int hostapd_wme_sta_config(struct hostap
+ {
+ /* update kernel STA data for WME related items (WLAN_STA_WPA flag) */
+ if (sta->flags & WLAN_STA_WME)
+- hostapd_sta_set_flags(hapd, sta->addr, WLAN_STA_WME, ~0);
++ hostapd_sta_set_flags(hapd, sta->addr, sta->flags,
++ WLAN_STA_WME, ~0);
+ else
+- hostapd_sta_set_flags(hapd, sta->addr, 0, ~WLAN_STA_WME);
++ hostapd_sta_set_flags(hapd, sta->addr, sta->flags,
++ 0, ~WLAN_STA_WME);
+
+ return 0;
+ }
--- /dev/null
+---
+ hostapd/driver_devicescape.c | 330 ++++++++++++++++++++++++++++++++-----------
+ 1 file changed, 249 insertions(+), 81 deletions(-)
+
+--- hostap.orig/hostapd/driver_devicescape.c 2007-11-09 13:41:15.000000000 +0100
++++ hostap/hostapd/driver_devicescape.c 2007-11-09 13:41:16.000000000 +0100
+@@ -75,8 +75,14 @@ struct i802_driver_data {
+
+ #define HAPD_DECL struct hostapd_data *hapd = iface->bss[0]
+
+-static int i802_sta_set_flags(void *priv, const u8 *addr,
+- int total_flags, int flags_or, int flags_and);
++/* helper for netlink get routines */
++static int ack_wait_handler(struct nl_msg *msg, void *arg)
++{
++ int *finished = arg;
++
++ *finished = 1;
++ return NL_STOP;
++}
+
+
+ static int hostapd_set_iface_flags(struct i802_driver_data *drv, int dev_up)
+@@ -255,14 +261,6 @@ static int get_key_handler(struct nl_msg
+ return NL_SKIP;
+ }
+
+-static int ack_wait_handler(struct nl_msg *msg, void *arg)
+-{
+- int *finished = arg;
+-
+- *finished = 1;
+- return NL_STOP;
+-}
+-
+ static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
+ int idx, u8 *seq)
+ {
+@@ -629,43 +627,126 @@ static int i802_get_retry(void *priv, in
+ static int i802_flush(void *priv)
+ {
+ struct i802_driver_data *drv = priv;
+- struct prism2_hostapd_param param;
++ struct nl_msg *msg;
++ int ret = -1;
+
+- memset(¶m, 0, sizeof(param));
+- param.cmd = PRISM2_HOSTAPD_FLUSH;
+- return hostapd_ioctl(drv, ¶m, sizeof(param));
++ msg = nlmsg_alloc();
++ if (!msg)
++ goto out;
++
++ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++ 0, NL80211_CMD_NEW_STATION, 0);
++
++ /*
++ * XXX: FIX! this needs to flush all VLANs too
++ */
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
++ if_nametoindex(drv->iface));
++
++ ret = 0;
++
++ if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++ nl_wait_for_ack(drv->nl_handle) < 0) {
++ ret = -1;
++ }
++
++ nla_put_failure:
++ nlmsg_free(msg);
++
++ out:
++ return ret;
+ }
+
+
++static int get_sta_handler(struct nl_msg *msg, void *arg)
++{
++ struct nlattr *tb[NL80211_ATTR_MAX + 1];
++ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
++ struct hostap_sta_driver_data *data = arg;
++ struct nlattr *stats[NL80211_STA_STAT_MAX + 1];
++ static struct nla_policy stats_policy[NL80211_STA_STAT_MAX + 1] = {
++ [NL80211_STA_STAT_INACTIVE_TIME] = { .type = NLA_U32 },
++ [NL80211_STA_STAT_RX_BYTES] = { .type = NLA_U32 },
++ [NL80211_STA_STAT_TX_BYTES] = { .type = NLA_U32 },
++ };
++
++ nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
++ genlmsg_attrlen(gnlh, 0), NULL);
++
++ /*
++ * TODO: validate the interface and mac address!
++ * Otherwise, there's a race condition as soon as
++ * the kernel starts sending station notifications.
++ */
++
++ if (!tb[NL80211_ATTR_STA_STATS]) {
++ printf("sta stats missing!\n");
++ return NL_SKIP;
++ }
++ if (nla_parse_nested(stats, NL80211_STA_STAT_MAX,
++ tb[NL80211_ATTR_STA_STATS],
++ stats_policy)) {
++ printf("failed to parse nested attributes!\n");
++ return NL_SKIP;
++ }
++
++ if (stats[NL80211_STA_STAT_INACTIVE_TIME])
++ data->inactive_msec =
++ nla_get_u32(stats[NL80211_STA_STAT_INACTIVE_TIME]);
++ if (stats[NL80211_STA_STAT_RX_BYTES])
++ data->rx_bytes = nla_get_u32(stats[NL80211_STA_STAT_RX_BYTES]);
++ if (stats[NL80211_STA_STAT_TX_BYTES])
++ data->rx_bytes = nla_get_u32(stats[NL80211_STA_STAT_TX_BYTES]);
++
++ return NL_SKIP;
++}
++
+ static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
+ const u8 *addr)
+ {
+ struct i802_driver_data *drv = priv;
+- struct prism2_hostapd_param param;
++ struct nl_msg *msg;
++ struct nl_cb *cb = NULL;
++ int ret = -1;
++ int err = 0;
++ int finished = 0;
+
+- memset(data, 0, sizeof(*data));
++ msg = nlmsg_alloc();
++ if (!msg)
++ goto out;
+
+- memset(¶m, 0, sizeof(param));
+- param.cmd = PRISM2_HOSTAPD_GET_INFO_STA;
+- memcpy(param.sta_addr, addr, ETH_ALEN);
+- if (hostapd_ioctl(drv, ¶m, sizeof(param))) {
+- printf(" Could not get station info from kernel driver.\n");
+- return -1;
+- }
++ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++ 0, NL80211_CMD_GET_STATION, 0);
++
++ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
++
++ cb = nl_cb_alloc(NL_CB_CUSTOM);
++ if (!cb)
++ goto out;
++
++ if (nl_send_auto_complete(drv->nl_handle, msg) < 0)
++ goto out;
++
++ nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, get_sta_handler, data);
++ nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_wait_handler, &finished);
++
++ err = nl_recvmsgs(drv->nl_handle, cb);
++
++ if (!finished)
++ err = nl_wait_for_ack(drv->nl_handle);
++
++ if (err < 0)
++ goto out;
++
++ ret = 0;
++
++ out:
++ nl_cb_put(cb);
++ nla_put_failure:
++ nlmsg_free(msg);
++ return ret;
+
+- data->inactive_msec = param.u.get_info_sta.inactive_msec;
+- data->rx_packets = param.u.get_info_sta.rx_packets;
+- data->tx_packets = param.u.get_info_sta.tx_packets;
+- data->rx_bytes = param.u.get_info_sta.rx_bytes;
+- data->tx_bytes = param.u.get_info_sta.tx_bytes;
+- data->current_tx_rate = param.u.get_info_sta.current_tx_rate;
+- data->flags = param.u.get_info_sta.flags;
+- data->num_ps_buf_frames = param.u.get_info_sta.num_ps_buf_frames;
+- data->tx_retry_failed = param.u.get_info_sta.tx_retry_failed;
+- data->tx_retry_count = param.u.get_info_sta.tx_retry_count;
+- data->last_rssi = param.u.get_info_sta.last_rssi;
+- data->last_ack_rssi = param.u.get_info_sta.last_ack_rssi;
+- return 0;
+ }
+
+
+@@ -744,35 +825,68 @@ static int i802_sta_add(const char *ifna
+ size_t supp_rates_len, int flags)
+ {
+ struct i802_driver_data *drv = priv;
+- struct prism2_hostapd_param param;
+- size_t len;
++ struct nl_msg *msg;
++ int ret = -1;
+
+- memset(¶m, 0, sizeof(param));
+- param.cmd = PRISM2_HOSTAPD_ADD_STA;
+- memcpy(param.sta_addr, addr, ETH_ALEN);
+- param.u.add_sta.aid = aid;
+- param.u.add_sta.capability = capability;
+- len = supp_rates_len;
+- if (len > sizeof(param.u.add_sta.supp_rates))
+- len = sizeof(param.u.add_sta.supp_rates);
+- memcpy(param.u.add_sta.supp_rates, supp_rates, len);
+- return hostapd_ioctl_iface(ifname, drv, ¶m, sizeof(param));
++ msg = nlmsg_alloc();
++ if (!msg)
++ goto out;
++
++ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++ 0, NL80211_CMD_NEW_STATION, 0);
++
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
++ if_nametoindex(drv->iface));
++ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
++ NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, aid);
++ NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, supp_rates_len,
++ supp_rates);
++ NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, 0);
++
++ ret = 0;
++
++ if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++ nl_wait_for_ack(drv->nl_handle) < 0) {
++ ret = -1;
++ }
++
++ nla_put_failure:
++ nlmsg_free(msg);
++
++ out:
++ return ret;
+ }
+
+
+ static int i802_sta_remove(void *priv, const u8 *addr)
+ {
+ struct i802_driver_data *drv = priv;
+- struct prism2_hostapd_param param;
++ struct nl_msg *msg;
++ int ret = -1;
+
+- i802_sta_set_flags(drv, addr, 0, 0, ~WLAN_STA_AUTHORIZED);
++ msg = nlmsg_alloc();
++ if (!msg)
++ goto out;
+
+- memset(¶m, 0, sizeof(param));
+- param.cmd = PRISM2_HOSTAPD_REMOVE_STA;
+- memcpy(param.sta_addr, addr, ETH_ALEN);
+- if (hostapd_ioctl(drv, ¶m, sizeof(param)))
+- return -1;
+- return 0;
++ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++ 0, NL80211_CMD_DEL_STATION, 0);
++
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
++ if_nametoindex(drv->iface));
++ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
++
++ ret = 0;
++
++ if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++ nl_wait_for_ack(drv->nl_handle) < 0) {
++ ret = -1;
++ }
++
++ nla_put_failure:
++ nlmsg_free(msg);
++
++ out:
++ return ret;
+ }
+
+
+@@ -780,14 +894,51 @@ static int i802_sta_set_flags(void *priv
+ int total_flags, int flags_or, int flags_and)
+ {
+ struct i802_driver_data *drv = priv;
+- struct prism2_hostapd_param param;
++ struct nl_msg *msg, *flags = NULL;
++ int ret = -1;
+
+- memset(¶m, 0, sizeof(param));
+- param.cmd = PRISM2_HOSTAPD_SET_FLAGS_STA;
+- memcpy(param.sta_addr, addr, ETH_ALEN);
+- param.u.set_flags_sta.flags_or = flags_or;
+- param.u.set_flags_sta.flags_and = flags_and;
+- return hostapd_ioctl(drv, ¶m, sizeof(param));
++ msg = nlmsg_alloc();
++ if (!msg)
++ goto out;
++
++ flags = nlmsg_alloc();
++ if (!flags)
++ goto free_msg;
++
++ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++ 0, NL80211_CMD_SET_STATION, 0);
++
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
++ if_nametoindex(drv->iface));
++ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
++
++ if (total_flags & WLAN_STA_AUTHORIZED)
++ NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
++
++ if (total_flags & WLAN_STA_WME)
++ NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
++
++ if (total_flags & WLAN_STA_SHORT_PREAMBLE)
++ NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
++
++ if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
++ goto nla_put_failure;
++
++ ret = 0;
++
++ if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++ nl_wait_for_ack(drv->nl_handle) < 0) {
++ ret = -1;
++ }
++
++ nla_put_failure:
++ nlmsg_free(flags);
++
++ free_msg:
++ nlmsg_free(msg);
++
++ out:
++ return ret;
+ }
+
+
+@@ -1257,18 +1408,38 @@ static struct hostapd_hw_modes * i802_ge
+ }
+
+
+-static int i802_set_sta_vlan(void *priv, const u8 *addr, const char *ifname,
+- int vlan_id)
++static int i802_set_sta_vlan(void *priv, const u8 *addr,
++ const char *ifname, int vlan_id)
+ {
+ struct i802_driver_data *drv = priv;
+- struct prism2_hostapd_param param;
++ struct nl_msg *msg;
++ int ret = -1;
+
+- memset(¶m, 0, sizeof(param));
+- param.cmd = PRISM2_HOSTAPD_SET_STA_VLAN;
+- memcpy(param.sta_addr, addr, ETH_ALEN);
+- os_strlcpy(param.u.set_sta_vlan.vlan_name, ifname, IFNAMSIZ);
+- param.u.set_sta_vlan.vlan_id = vlan_id;
+- return hostapd_ioctl(drv, ¶m, sizeof(param));
++ msg = nlmsg_alloc();
++ if (!msg)
++ goto out;
++
++ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
++ 0, NL80211_CMD_SET_STATION, 0);
++
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
++ if_nametoindex(drv->iface));
++ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
++ if_nametoindex(ifname));
++
++ ret = 0;
++
++ if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
++ nl_wait_for_ack(drv->nl_handle) < 0) {
++ ret = -1;
++ }
++
++ nla_put_failure:
++ nlmsg_free(msg);
++
++ out:
++ return ret;
+ }
+
+
+@@ -1750,17 +1921,14 @@ static int i802_init_sockets(struct i802
+
+ static int i802_get_inact_sec(void *priv, const u8 *addr)
+ {
+- struct i802_driver_data *drv = priv;
+- struct prism2_hostapd_param param;
++ struct hostap_sta_driver_data data;
++ int ret;
+
+- memset(¶m, 0, sizeof(param));
+- param.cmd = PRISM2_HOSTAPD_GET_INFO_STA;
+- memcpy(param.sta_addr, addr, ETH_ALEN);
+- if (hostapd_ioctl(drv, ¶m, sizeof(param))) {
++ data.inactive_msec = -1;
++ ret = i802_read_sta_data(priv, &data, addr);
++ if (ret || data.inactive_msec == -1)
+ return -1;
+- }
+-
+- return param.u.get_info_sta.inactive_msec / 1000;
++ return data.inactive_msec / 1000;
+ }
+
+
+++ /dev/null
-Index: hostapd-0.5.7/driver_madwifi.c
-===================================================================
---- hostapd-0.5.7.orig/driver_madwifi.c 2007-06-04 13:22:31.768025808 +0200
-+++ hostapd-0.5.7/driver_madwifi.c 2007-06-04 13:22:32.051982640 +0200
-@@ -21,12 +21,9 @@
- #include <include/compat.h>
- #include <net80211/ieee80211.h>
- #ifdef WME_NUM_AC
--/* Assume this is built against BSD branch of madwifi driver. */
--#define MADWIFI_BSD
--#include <net80211/_ieee80211.h>
--#endif /* WME_NUM_AC */
- #include <net80211/ieee80211_crypto.h>
- #include <net80211/ieee80211_ioctl.h>
-+#endif /* WME_NUM_AC */
-
- #ifdef IEEE80211_IOCTL_SETWMMPARAMS
- /* Assume this is built against madwifi-ng */
-@@ -169,6 +166,11 @@
- return 0;
- }
-
-+static int madwifi_get_inact_sec(void *priv, const u8 *addr)
-+{
-+ return 0;
-+}
-+
- static int
- set80211param(struct madwifi_driver_data *drv, int op, int arg)
- {
-@@ -1258,7 +1260,6 @@
- goto bad;
- }
-
-- madwifi_set_iface_flags(drv, 0); /* mark down during setup */
- madwifi_set_privacy(drv->iface, drv, 0); /* default to no privacy */
-
- hapd->driver = &drv->ops;
-@@ -1281,7 +1282,6 @@
-
- drv->hapd->driver = NULL;
-
-- (void) madwifi_set_iface_flags(drv, 0);
- if (drv->ioctl_sock >= 0)
- close(drv->ioctl_sock);
- if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
-@@ -1367,6 +1367,7 @@
- .get_ssid = madwifi_get_ssid,
- .set_countermeasures = madwifi_set_countermeasures,
- .sta_clear_stats = madwifi_sta_clear_stats,
-+ .get_inact_sec = madwifi_get_inact_sec,
- .commit = madwifi_commit,
- };
-
install
endef
-define Build/InstallDev
+ifneq ($(CONFIG_LINUX_2_6_23),)
+ define Build/InstallDev
$(CP) $(PKG_INSTALL_DIR)/* $(1)/
-endef
+ $(CP) $(PKG_BUILD_DIR)/include/linux $(1)/usr/include/
+ endef
-define Build/UninstallDev
-endef
+ define Build/UninstallDev
+ endef
-define Package/libnl/install
+ define Package/libnl/install
$(INSTALL_DIR) $(1)/usr/lib
$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/lib/libnl.so.1 $(1)/usr/lib/
-endef
+ endef
+endif
$(eval $(call BuildPackage,libnl))
TITLE:=Linux 802.11 Wireless Networking Stack
DEPENDS:=@LINUX_2_6_23 +kmod-crypto-arc4 +kmod-crypto-aes +wireless-tools
FILES:= \
- $(PKG_BUILD_DIR)/mac80211/mac80211.$(LINUX_KMOD_SUFFIX) \
- $(PKG_BUILD_DIR)/mac80211/rc80211_simple.$(LINUX_KMOD_SUFFIX) \
- $(PKG_BUILD_DIR)/wireless/cfg80211.$(LINUX_KMOD_SUFFIX)
- AUTOLOAD:=$(call AutoLoad,20,cfg80211 mac80211 rc80211_simple)
+ $(PKG_BUILD_DIR)/net/mac80211/mac80211.$(LINUX_KMOD_SUFFIX) \
+ $(PKG_BUILD_DIR)/net/wireless/cfg80211.$(LINUX_KMOD_SUFFIX)
+ AUTOLOAD:=$(call AutoLoad,20,cfg80211 mac80211)
endef
define KernelPackage/mac80211/description
CONFOPTS:=MAC80211 CFG80211 NL80211
BUILDFLAGS:= \
- $(foreach opt,$(CONFOPTS),-DCONFIG_$(opt) ) \
+ $(foreach opt,$(CONFOPTS),-DCONFIG_$(opt) -DCONFIG_MAC80211_RCSIMPLE=1) \
$(if $(CONFIG_LEDS_TRIGGERS), -DCONFIG_MAC80211_LEDS -DCONFIG_LEDS_TRIGGERS)
MAKE_OPTS:= \
EXTRA_CFLAGS="$(BUILDFLAGS)" \
$(foreach opt,$(CONFOPTS),CONFIG_$(opt)=m) \
CONFIG_NL80211=y \
+ CONFIG_MAC80211_RCSIMPLE=y \
CONFIG_MAC80211_LEDS=$(CONFIG_LEDS_TRIGGERS) \
- LINUXINCLUDE="-I${CURDIR}/src/include -I$(LINUX_DIR)/include -include linux/autoconf.h" \
+ LINUXINCLUDE="-I$(PKG_BUILD_DIR)/include -I$(LINUX_DIR)/include -include linux/autoconf.h" \
define Build/Prepare
- mkdir -p $(PKG_BUILD_DIR)/mac80211
- $(CP) ./src/mac80211/* $(PKG_BUILD_DIR)/mac80211/
- mkdir -p $(PKG_BUILD_DIR)/wireless
- $(CP) ./src/wireless/* $(PKG_BUILD_DIR)/wireless/
+ rm -rf $(PKG_BUILD_DIR)
+ mkdir -p $(PKG_BUILD_DIR)
+ $(CP) ./src/* $(PKG_BUILD_DIR)/
+ $(Build/Patch)
+ $(if $(QUILT),touch $(PKG_BUILD_DIR)/.quilt_used)
endef
define Build/Compile
- $(MAKE) -C "$(LINUX_DIR)" $(MAKE_OPTS) SUBDIRS="$(PKG_BUILD_DIR)/wireless" modules
- $(MAKE) -C "$(LINUX_DIR)" $(MAKE_OPTS) SUBDIRS="$(PKG_BUILD_DIR)/mac80211" modules
+ $(MAKE) -C "$(LINUX_DIR)" $(MAKE_OPTS) SUBDIRS="$(PKG_BUILD_DIR)/net/wireless" modules
+ $(MAKE) -C "$(LINUX_DIR)" $(MAKE_OPTS) SUBDIRS="$(PKG_BUILD_DIR)/net/mac80211" modules
endef
define Build/InstallDev
mkdir -p $(1)/usr/include/mac80211
- $(CP) ./src/include/* $(1)/usr/include/mac80211/
+ $(CP) $(PKG_BUILD_DIR)/net/mac80211/*.h $(PKG_BUILD_DIR)/include/* $(1)/usr/include/mac80211/
endef
define Build/UninstallDev
--- /dev/null
+Index: mac80211/include/linux/ieee80211.h
+===================================================================
+--- mac80211.orig/include/linux/ieee80211.h 2007-11-11 15:45:23.153490050 +0100
++++ mac80211/include/linux/ieee80211.h 2007-11-11 15:45:30.417904025 +0100
+@@ -81,18 +81,18 @@
+
+
+ /* miscellaneous IEEE 802.11 constants */
+-#define IEEE80211_MAX_FRAG_THRESHOLD 2346
+-#define IEEE80211_MAX_RTS_THRESHOLD 2347
++#define IEEE80211_MAX_FRAG_THRESHOLD 2352
++#define IEEE80211_MAX_RTS_THRESHOLD 2353
+ #define IEEE80211_MAX_AID 2007
+ #define IEEE80211_MAX_TIM_LEN 251
+-#define IEEE80211_MAX_DATA_LEN 2304
+ /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
+ 6.2.1.1.2.
+
+- The figure in section 7.1.2 suggests a body size of up to 2312
+- bytes is allowed, which is a bit confusing, I suspect this
+- represents the 2304 bytes of real data, plus a possible 8 bytes of
+- WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
++ 802.11e clarifies the figure in section 7.1.2. The frame body is
++ up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
++#define IEEE80211_MAX_DATA_LEN 2304
++/* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
++#define IEEE80211_MAX_FRAME_LEN 2352
+
+ #define IEEE80211_MAX_SSID_LEN 32
+
+Index: mac80211/include/linux/nl80211.h
+===================================================================
+--- mac80211.orig/include/linux/nl80211.h 2007-11-11 15:45:23.161490506 +0100
++++ mac80211/include/linux/nl80211.h 2007-11-11 15:45:30.421904255 +0100
+@@ -25,7 +25,7 @@
+ * either a dump request on a %NL80211_ATTR_WIPHY or a specific get
+ * on an %NL80211_ATTR_IFINDEX is supported.
+ * @NL80211_CMD_SET_INTERFACE: Set type of a virtual interface, requires
+- %NL80211_ATTR_IFINDEX and %NL80211_ATTR_IFTYPE.
++ * %NL80211_ATTR_IFINDEX and %NL80211_ATTR_IFTYPE.
+ * @NL80211_CMD_NEW_INTERFACE: Newly created virtual interface or response
+ * to %NL80211_CMD_GET_INTERFACE. Has %NL80211_ATTR_IFINDEX,
+ * %NL80211_ATTR_WIPHY and %NL80211_ATTR_IFTYPE attributes. Can also
+Index: mac80211/include/net/mac80211.h
+===================================================================
+--- mac80211.orig/include/net/mac80211.h 2007-11-11 15:45:23.169490961 +0100
++++ mac80211/include/net/mac80211.h 2007-11-11 15:45:30.429904707 +0100
+@@ -706,11 +706,16 @@
+ *
+ * @queues: number of available hardware transmit queues for
+ * data packets. WMM/QoS requires at least four.
++ *
++ * @rate_control_algorithm: rate control algorithm for this hardware.
++ * If unset (NULL), the default algorithm will be used. Must be
++ * set before calling ieee80211_register_hw().
+ */
+ struct ieee80211_hw {
+ struct ieee80211_conf conf;
+ struct wiphy *wiphy;
+ struct workqueue_struct *workqueue;
++ const char *rate_control_algorithm;
+ void *priv;
+ u32 flags;
+ unsigned int extra_tx_headroom;
+@@ -936,27 +941,11 @@
+ * and remove_interface calls, i.e. while the interface with the
+ * given local_address is enabled.
+ *
+- * @set_ieee8021x: Enable/disable IEEE 802.1X. This item requests wlan card
+- * to pass unencrypted EAPOL-Key frames even when encryption is
+- * configured. If the wlan card does not require such a configuration,
+- * this function pointer can be set to NULL.
+- *
+- * @set_port_auth: Set port authorization state (IEEE 802.1X PAE) to be
+- * authorized (@authorized=1) or unauthorized (=0). This function can be
+- * used if the wlan hardware or low-level driver implements PAE.
+- * mac80211 will filter frames based on authorization state in any case,
+- * so this function pointer can be NULL if low-level driver does not
+- * require event notification about port state changes.
+- *
+ * @hw_scan: Ask the hardware to service the scan request, no need to start
+ * the scan state machine in stack.
+ *
+ * @get_stats: return low-level statistics
+ *
+- * @set_privacy_invoked: For devices that generate their own beacons and probe
+- * response or association responses this updates the state of privacy_invoked
+- * returns 0 for success or an error number.
+- *
+ * @get_sequence_counter: For devices that have internal sequence counters this
+ * callback allows mac80211 to access the current value of a counter.
+ * This callback seems not well-defined, tell us if you need it.
+@@ -1029,14 +1018,9 @@
+ int (*set_key)(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+ const u8 *local_address, const u8 *address,
+ struct ieee80211_key_conf *key);
+- int (*set_ieee8021x)(struct ieee80211_hw *hw, int use_ieee8021x);
+- int (*set_port_auth)(struct ieee80211_hw *hw, u8 *addr,
+- int authorized);
+ int (*hw_scan)(struct ieee80211_hw *hw, u8 *ssid, size_t len);
+ int (*get_stats)(struct ieee80211_hw *hw,
+ struct ieee80211_low_level_stats *stats);
+- int (*set_privacy_invoked)(struct ieee80211_hw *hw,
+- int privacy_invoked);
+ int (*get_sequence_counter)(struct ieee80211_hw *hw,
+ u8* addr, u8 keyidx, u8 txrx,
+ u32* iv32, u16* iv16);
+Index: mac80211/net/mac80211/aes_ccm.c
+===================================================================
+--- mac80211.orig/net/mac80211/aes_ccm.c 2007-11-11 15:45:23.177491419 +0100
++++ mac80211/net/mac80211/aes_ccm.c 2007-11-11 15:45:30.433904936 +0100
+@@ -7,10 +7,10 @@
+ * published by the Free Software Foundation.
+ */
+
++#include <linux/kernel.h>
+ #include <linux/types.h>
+ #include <linux/crypto.h>
+ #include <linux/err.h>
+-#include <asm/scatterlist.h>
+
+ #include <net/mac80211.h>
+ #include "ieee80211_key.h"
+@@ -63,7 +63,7 @@
+ s_0 = scratch + AES_BLOCK_LEN;
+ e = scratch + 2 * AES_BLOCK_LEN;
+
+- num_blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
++ num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN);
+ last_len = data_len % AES_BLOCK_LEN;
+ aes_ccm_prepare(tfm, b_0, aad, b, s_0, b);
+
+@@ -102,7 +102,7 @@
+ s_0 = scratch + AES_BLOCK_LEN;
+ a = scratch + 2 * AES_BLOCK_LEN;
+
+- num_blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
++ num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN);
+ last_len = data_len % AES_BLOCK_LEN;
+ aes_ccm_prepare(tfm, b_0, aad, b, s_0, a);
+
+Index: mac80211/net/mac80211/ieee80211.c
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211.c 2007-11-11 15:45:23.185491871 +0100
++++ mac80211/net/mac80211/ieee80211.c 2007-11-11 15:45:30.437905164 +0100
+@@ -1061,7 +1061,8 @@
+ ieee80211_debugfs_add_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
+ ieee80211_if_set_type(local->mdev, IEEE80211_IF_TYPE_AP);
+
+- result = ieee80211_init_rate_ctrl_alg(local, NULL);
++ result = ieee80211_init_rate_ctrl_alg(local,
++ hw->rate_control_algorithm);
+ if (result < 0) {
+ printk(KERN_DEBUG "%s: Failed to initialize rate control "
+ "algorithm\n", wiphy_name(local->hw.wiphy));
+@@ -1222,8 +1223,17 @@
+
+ BUILD_BUG_ON(sizeof(struct ieee80211_tx_packet_data) > sizeof(skb->cb));
+
++#ifdef CONFIG_MAC80211_RCSIMPLE
++ ret = ieee80211_rate_control_register(&mac80211_rcsimple);
++ if (ret)
++ return ret;
++#endif
++
+ ret = ieee80211_wme_register();
+ if (ret) {
++#ifdef CONFIG_MAC80211_RCSIMPLE
++ ieee80211_rate_control_unregister(&mac80211_rcsimple);
++#endif
+ printk(KERN_DEBUG "ieee80211_init: failed to "
+ "initialize WME (err=%d)\n", ret);
+ return ret;
+@@ -1237,6 +1247,10 @@
+
+ static void __exit ieee80211_exit(void)
+ {
++#ifdef CONFIG_MAC80211_RCSIMPLE
++ ieee80211_rate_control_unregister(&mac80211_rcsimple);
++#endif
++
+ ieee80211_wme_unregister();
+ ieee80211_debugfs_netdev_exit();
+ }
+Index: mac80211/net/mac80211/ieee80211_i.h
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211_i.h 2007-11-11 15:45:23.189492100 +0100
++++ mac80211/net/mac80211/ieee80211_i.h 2007-11-11 15:45:30.441905395 +0100
+@@ -232,6 +232,7 @@
+ #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
+ #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
+ #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
++#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
+ struct ieee80211_if_sta {
+ enum {
+ IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
+@@ -261,7 +262,6 @@
+ unsigned long request;
+ struct sk_buff_head skb_queue;
+
+- int key_management_enabled;
+ unsigned long last_probe;
+
+ #define IEEE80211_AUTH_ALG_OPEN BIT(0)
+Index: mac80211/net/mac80211/ieee80211_ioctl.c
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211_ioctl.c 2007-11-11 15:45:23.197492559 +0100
++++ mac80211/net/mac80211/ieee80211_ioctl.c 2007-11-11 15:45:30.441905395 +0100
+@@ -305,9 +305,12 @@
+ ((chan->chan == channel) || (chan->freq == freq))) {
+ local->oper_channel = chan;
+ local->oper_hw_mode = mode;
+- set++;
++ set = 1;
++ break;
+ }
+ }
++ if (set)
++ break;
+ }
+
+ if (set) {
+@@ -507,10 +510,11 @@
+
+ static int ieee80211_ioctl_siwscan(struct net_device *dev,
+ struct iw_request_info *info,
+- struct iw_point *data, char *extra)
++ union iwreq_data *wrqu, char *extra)
+ {
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++ struct iw_scan_req *req = NULL;
+ u8 *ssid = NULL;
+ size_t ssid_len = 0;
+
+@@ -535,6 +539,14 @@
+ return -EOPNOTSUPP;
+ }
+
++ /* if SSID was specified explicitly then use that */
++ if (wrqu->data.length == sizeof(struct iw_scan_req) &&
++ wrqu->data.flags & IW_SCAN_THIS_ESSID) {
++ req = (struct iw_scan_req *)extra;
++ ssid = req->essid;
++ ssid_len = req->essid_len;
++ }
++
+ return ieee80211_sta_req_scan(dev, ssid, ssid_len);
+ }
+
+@@ -621,22 +633,35 @@
+ {
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ bool need_reconfig = 0;
++ u8 new_power_level;
+
+ if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
+ return -EINVAL;
+ if (data->txpower.flags & IW_TXPOW_RANGE)
+ return -EINVAL;
+- if (!data->txpower.fixed)
+- return -EINVAL;
+
+- if (local->hw.conf.power_level != data->txpower.value) {
+- local->hw.conf.power_level = data->txpower.value;
++ if (data->txpower.fixed) {
++ new_power_level = data->txpower.value;
++ } else {
++ /* Automatic power level. Get the px power from the current
++ * channel. */
++ struct ieee80211_channel* chan = local->oper_channel;
++ if (!chan)
++ return -EINVAL;
++
++ new_power_level = chan->power_level;
++ }
++
++ if (local->hw.conf.power_level != new_power_level) {
++ local->hw.conf.power_level = new_power_level;
+ need_reconfig = 1;
+ }
++
+ if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
+ local->hw.conf.radio_enabled = !(data->txpower.disabled);
+ need_reconfig = 1;
+ }
++
+ if (need_reconfig) {
+ ieee80211_hw_config(local);
+ /* The return value of hw_config is not of big interest here,
+@@ -904,7 +929,6 @@
+ struct iw_request_info *info,
+ struct iw_param *data, char *extra)
+ {
+- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int ret = 0;
+
+@@ -914,18 +938,21 @@
+ case IW_AUTH_CIPHER_GROUP:
+ case IW_AUTH_WPA_ENABLED:
+ case IW_AUTH_RX_UNENCRYPTED_EAPOL:
+- break;
+ case IW_AUTH_KEY_MGMT:
++ break;
++ case IW_AUTH_PRIVACY_INVOKED:
+ if (sdata->type != IEEE80211_IF_TYPE_STA)
+ ret = -EINVAL;
+ else {
++ sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
+ /*
+- * Key management was set by wpa_supplicant,
+- * we only need this to associate to a network
+- * that has privacy enabled regardless of not
+- * having a key.
++ * Privacy invoked by wpa_supplicant, store the
++ * value and allow associating to a protected
++ * network without having a key up front.
+ */
+- sdata->u.sta.key_management_enabled = !!data->value;
++ if (data->value)
++ sdata->u.sta.flags |=
++ IEEE80211_STA_PRIVACY_INVOKED;
+ }
+ break;
+ case IW_AUTH_80211_AUTH_ALG:
+@@ -935,11 +962,6 @@
+ else
+ ret = -EOPNOTSUPP;
+ break;
+- case IW_AUTH_PRIVACY_INVOKED:
+- if (local->ops->set_privacy_invoked)
+- ret = local->ops->set_privacy_invoked(
+- local_to_hw(local), data->value);
+- break;
+ default:
+ ret = -EOPNOTSUPP;
+ break;
+Index: mac80211/net/mac80211/ieee80211_rate.c
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211_rate.c 2007-11-11 15:45:23.205493011 +0100
++++ mac80211/net/mac80211/ieee80211_rate.c 2007-11-11 15:45:30.441905395 +0100
+@@ -25,13 +25,25 @@
+ {
+ struct rate_control_alg *alg;
+
++ if (!ops->name)
++ return -EINVAL;
++
++ mutex_lock(&rate_ctrl_mutex);
++ list_for_each_entry(alg, &rate_ctrl_algs, list) {
++ if (!strcmp(alg->ops->name, ops->name)) {
++ /* don't register an algorithm twice */
++ WARN_ON(1);
++ return -EALREADY;
++ }
++ }
++
+ alg = kzalloc(sizeof(*alg), GFP_KERNEL);
+ if (alg == NULL) {
++ mutex_unlock(&rate_ctrl_mutex);
+ return -ENOMEM;
+ }
+ alg->ops = ops;
+
+- mutex_lock(&rate_ctrl_mutex);
+ list_add_tail(&alg->list, &rate_ctrl_algs);
+ mutex_unlock(&rate_ctrl_mutex);
+
+@@ -61,9 +73,12 @@
+ struct rate_control_alg *alg;
+ struct rate_control_ops *ops = NULL;
+
++ if (!name)
++ return NULL;
++
+ mutex_lock(&rate_ctrl_mutex);
+ list_for_each_entry(alg, &rate_ctrl_algs, list) {
+- if (!name || !strcmp(alg->ops->name, name))
++ if (!strcmp(alg->ops->name, name))
+ if (try_module_get(alg->ops->module)) {
+ ops = alg->ops;
+ break;
+@@ -80,9 +95,12 @@
+ {
+ struct rate_control_ops *ops;
+
++ if (!name)
++ name = "simple";
++
+ ops = ieee80211_try_rate_control_ops_get(name);
+ if (!ops) {
+- request_module("rc80211_%s", name ? name : "default");
++ request_module("rc80211_%s", name);
+ ops = ieee80211_try_rate_control_ops_get(name);
+ }
+ return ops;
+Index: mac80211/net/mac80211/ieee80211_rate.h
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211_rate.h 2007-11-11 15:45:23.213493469 +0100
++++ mac80211/net/mac80211/ieee80211_rate.h 2007-11-11 15:45:30.445905621 +0100
+@@ -65,6 +65,9 @@
+ struct kref kref;
+ };
+
++/* default 'simple' algorithm */
++extern struct rate_control_ops mac80211_rcsimple;
++
+ int ieee80211_rate_control_register(struct rate_control_ops *ops);
+ void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
+
+Index: mac80211/net/mac80211/ieee80211_sta.c
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211_sta.c 2007-11-11 15:45:23.217493699 +0100
++++ mac80211/net/mac80211/ieee80211_sta.c 2007-11-11 15:46:32.885463850 +0100
+@@ -12,7 +12,6 @@
+ */
+
+ /* TODO:
+- * BSS table: use <BSSID,SSID> as the key to support multi-SSID APs
+ * order BSS list by RSSI(?) ("quality of AP")
+ * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE,
+ * SSID)
+@@ -61,7 +60,8 @@
+ static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
+ u8 *ssid, size_t ssid_len);
+ static struct ieee80211_sta_bss *
+-ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid);
++ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int channel,
++ u8 *ssid, u8 ssid_len);
+ static void ieee80211_rx_bss_put(struct net_device *dev,
+ struct ieee80211_sta_bss *bss);
+ static int ieee80211_sta_find_ibss(struct net_device *dev,
+@@ -108,14 +108,11 @@
+ u8 wmm_param_len;
+ };
+
+-enum ParseRes { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 };
+-
+-static enum ParseRes ieee802_11_parse_elems(u8 *start, size_t len,
+- struct ieee802_11_elems *elems)
++static void ieee802_11_parse_elems(u8 *start, size_t len,
++ struct ieee802_11_elems *elems)
+ {
+ size_t left = len;
+ u8 *pos = start;
+- int unknown = 0;
+
+ memset(elems, 0, sizeof(*elems));
+
+@@ -126,15 +123,8 @@
+ elen = *pos++;
+ left -= 2;
+
+- if (elen > left) {
+-#if 0
+- if (net_ratelimit())
+- printk(KERN_DEBUG "IEEE 802.11 element parse "
+- "failed (id=%d elen=%d left=%d)\n",
+- id, elen, left);
+-#endif
+- return ParseFailed;
+- }
++ if (elen > left)
++ return;
+
+ switch (id) {
+ case WLAN_EID_SSID:
+@@ -201,28 +191,15 @@
+ elems->ext_supp_rates_len = elen;
+ break;
+ default:
+-#if 0
+- printk(KERN_DEBUG "IEEE 802.11 element parse ignored "
+- "unknown element (id=%d elen=%d)\n",
+- id, elen);
+-#endif
+- unknown++;
+ break;
+ }
+
+ left -= elen;
+ pos += elen;
+ }
+-
+- /* Do not trigger error if left == 1 as Apple Airport base stations
+- * send AssocResps that are one spurious byte too long. */
+-
+- return unknown ? ParseUnknown : ParseOK;
+ }
+
+
+-
+-
+ static int ecw2cw(int ecw)
+ {
+ int cw = 1;
+@@ -426,7 +403,9 @@
+ if (sdata->type != IEEE80211_IF_TYPE_STA)
+ return;
+
+- bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
++ bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
++ local->hw.conf.channel,
++ ifsta->ssid, ifsta->ssid_len);
+ if (bss) {
+ if (bss->has_erp_value)
+ ieee80211_handle_erp_ie(dev, bss->erp_value);
+@@ -571,7 +550,8 @@
+ capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME |
+ WLAN_CAPABILITY_SHORT_PREAMBLE;
+ }
+- bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
++ bss = ieee80211_rx_bss_get(dev, ifsta->bssid, local->hw.conf.channel,
++ ifsta->ssid, ifsta->ssid_len);
+ if (bss) {
+ if (bss->capability & WLAN_CAPABILITY_PRIVACY)
+ capab |= WLAN_CAPABILITY_PRIVACY;
+@@ -719,24 +699,30 @@
+ static int ieee80211_privacy_mismatch(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+ {
++ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss;
+- int res = 0;
++ int bss_privacy;
++ int wep_privacy;
++ int privacy_invoked;
+
+- if (!ifsta || (ifsta->flags & IEEE80211_STA_MIXED_CELL) ||
+- ifsta->key_management_enabled)
++ if (!ifsta || (ifsta->flags & IEEE80211_STA_MIXED_CELL))
+ return 0;
+
+- bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
++ bss = ieee80211_rx_bss_get(dev, ifsta->bssid, local->hw.conf.channel,
++ ifsta->ssid, ifsta->ssid_len);
+ if (!bss)
+ return 0;
+
+- if (ieee80211_sta_wep_configured(dev) !=
+- !!(bss->capability & WLAN_CAPABILITY_PRIVACY))
+- res = 1;
++ bss_privacy = !!(bss->capability & WLAN_CAPABILITY_PRIVACY);
++ wep_privacy = !!ieee80211_sta_wep_configured(dev);
++ privacy_invoked = !!(ifsta->flags & IEEE80211_STA_PRIVACY_INVOKED);
+
+ ieee80211_rx_bss_put(dev, bss);
+
+- return res;
++ if ((bss_privacy == wep_privacy) || (bss_privacy == privacy_invoked))
++ return 0;
++
++ return 1;
+ }
+
+
+@@ -920,12 +906,7 @@
+
+ printk(KERN_DEBUG "%s: replying to auth challenge\n", dev->name);
+ pos = mgmt->u.auth.variable;
+- if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems)
+- == ParseFailed) {
+- printk(KERN_DEBUG "%s: failed to parse Auth(challenge)\n",
+- dev->name);
+- return;
+- }
++ ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
+ if (!elems.challenge) {
+ printk(KERN_DEBUG "%s: no challenge IE in shared key auth "
+ "frame\n", dev->name);
+@@ -1214,12 +1195,7 @@
+ }
+
+ pos = mgmt->u.assoc_resp.variable;
+- if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems)
+- == ParseFailed) {
+- printk(KERN_DEBUG "%s: failed to parse AssocResp\n",
+- dev->name);
+- return;
+- }
++ ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
+
+ if (!elems.supp_rates) {
+ printk(KERN_DEBUG "%s: no SuppRates element in AssocResp\n",
+@@ -1231,7 +1207,9 @@
+ * update our stored copy */
+ if (elems.erp_info && elems.erp_info_len >= 1) {
+ struct ieee80211_sta_bss *bss
+- = ieee80211_rx_bss_get(dev, ifsta->bssid);
++ = ieee80211_rx_bss_get(dev, ifsta->bssid,
++ local->hw.conf.channel,
++ ifsta->ssid, ifsta->ssid_len);
+ if (bss) {
+ bss->erp_value = elems.erp_info[0];
+ bss->has_erp_value = 1;
+@@ -1261,7 +1239,9 @@
+ " AP\n", dev->name);
+ return;
+ }
+- bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
++ bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
++ local->hw.conf.channel,
++ ifsta->ssid, ifsta->ssid_len);
+ if (bss) {
+ sta->last_rssi = bss->rssi;
+ sta->last_signal = bss->signal;
+@@ -1337,7 +1317,8 @@
+
+
+ static struct ieee80211_sta_bss *
+-ieee80211_rx_bss_add(struct net_device *dev, u8 *bssid)
++ieee80211_rx_bss_add(struct net_device *dev, u8 *bssid, int channel,
++ u8 *ssid, u8 ssid_len)
+ {
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss;
+@@ -1348,6 +1329,11 @@
+ atomic_inc(&bss->users);
+ atomic_inc(&bss->users);
+ memcpy(bss->bssid, bssid, ETH_ALEN);
++ bss->channel = channel;
++ if (ssid && ssid_len <= IEEE80211_MAX_SSID_LEN) {
++ memcpy(bss->ssid, ssid, ssid_len);
++ bss->ssid_len = ssid_len;
++ }
+
+ spin_lock_bh(&local->sta_bss_lock);
+ /* TODO: order by RSSI? */
+@@ -1359,7 +1345,8 @@
+
+
+ static struct ieee80211_sta_bss *
+-ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid)
++ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int channel,
++ u8 *ssid, u8 ssid_len)
+ {
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss;
+@@ -1367,7 +1354,10 @@
+ spin_lock_bh(&local->sta_bss_lock);
+ bss = local->sta_bss_hash[STA_HASH(bssid)];
+ while (bss) {
+- if (memcmp(bss->bssid, bssid, ETH_ALEN) == 0) {
++ if (!memcmp(bss->bssid, bssid, ETH_ALEN) &&
++ bss->channel == channel &&
++ bss->ssid_len == ssid_len &&
++ (ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) {
+ atomic_inc(&bss->users);
+ break;
+ }
+@@ -1429,7 +1419,7 @@
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee802_11_elems elems;
+ size_t baselen;
+- int channel, invalid = 0, clen;
++ int channel, clen;
+ struct ieee80211_sta_bss *bss;
+ struct sta_info *sta;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+@@ -1473,9 +1463,7 @@
+ #endif /* CONFIG_MAC80211_IBSS_DEBUG */
+ }
+
+- if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen,
+- &elems) == ParseFailed)
+- invalid = 1;
++ ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
+
+ if (sdata->type == IEEE80211_IF_TYPE_IBSS && elems.supp_rates &&
+ memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 &&
+@@ -1533,9 +1521,11 @@
+ else
+ channel = rx_status->channel;
+
+- bss = ieee80211_rx_bss_get(dev, mgmt->bssid);
++ bss = ieee80211_rx_bss_get(dev, mgmt->bssid, channel,
++ elems.ssid, elems.ssid_len);
+ if (!bss) {
+- bss = ieee80211_rx_bss_add(dev, mgmt->bssid);
++ bss = ieee80211_rx_bss_add(dev, mgmt->bssid, channel,
++ elems.ssid, elems.ssid_len);
+ if (!bss)
+ return;
+ } else {
+@@ -1561,10 +1551,6 @@
+
+ bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int);
+ bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info);
+- if (elems.ssid && elems.ssid_len <= IEEE80211_MAX_SSID_LEN) {
+- memcpy(bss->ssid, elems.ssid, elems.ssid_len);
+- bss->ssid_len = elems.ssid_len;
+- }
+
+ bss->supp_rates_len = 0;
+ if (elems.supp_rates) {
+@@ -1635,7 +1621,6 @@
+
+
+ bss->hw_mode = rx_status->phymode;
+- bss->channel = channel;
+ bss->freq = rx_status->freq;
+ if (channel != rx_status->channel &&
+ (bss->hw_mode == MODE_IEEE80211G ||
+@@ -1695,9 +1680,7 @@
+ if (baselen > len)
+ return;
+
+- if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen,
+- &elems) == ParseFailed)
+- return;
++ ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
+
+ if (elems.erp_info && elems.erp_info_len >= 1)
+ ieee80211_handle_erp_ie(dev, elems.erp_info[0]);
+@@ -2098,7 +2081,8 @@
+ {
+ int tmp, hidden_ssid;
+
+- if (!memcmp(ifsta->ssid, ssid, ssid_len))
++ if (ssid_len == ifsta->ssid_len &&
++ !memcmp(ifsta->ssid, ssid, ssid_len))
+ return 1;
+
+ if (ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL)
+@@ -2357,7 +2341,7 @@
+ {
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss;
+- struct ieee80211_sub_if_data *sdata;
++ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_hw_mode *mode;
+ u8 bssid[ETH_ALEN], *pos;
+ int i;
+@@ -2379,18 +2363,17 @@
+ printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID " MAC_FMT "\n",
+ dev->name, MAC_ARG(bssid));
+
+- bss = ieee80211_rx_bss_add(dev, bssid);
++ bss = ieee80211_rx_bss_add(dev, bssid, local->hw.conf.channel,
++ sdata->u.sta.ssid, sdata->u.sta.ssid_len);
+ if (!bss)
+ return -ENOMEM;
+
+- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ mode = local->oper_hw_mode;
+
+ if (local->hw.conf.beacon_int == 0)
+ local->hw.conf.beacon_int = 100;
+ bss->beacon_int = local->hw.conf.beacon_int;
+ bss->hw_mode = local->hw.conf.phymode;
+- bss->channel = local->hw.conf.channel;
+ bss->freq = local->hw.conf.freq;
+ bss->last_update = jiffies;
+ bss->capability = WLAN_CAPABILITY_IBSS;
+@@ -2448,7 +2431,8 @@
+ MAC_FMT "\n", MAC_ARG(bssid), MAC_ARG(ifsta->bssid));
+ #endif /* CONFIG_MAC80211_IBSS_DEBUG */
+ if (found && memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0 &&
+- (bss = ieee80211_rx_bss_get(dev, bssid))) {
++ (bss = ieee80211_rx_bss_get(dev, bssid, local->hw.conf.channel,
++ ifsta->ssid, ifsta->ssid_len))) {
+ printk(KERN_DEBUG "%s: Selected IBSS BSSID " MAC_FMT
+ " based on configured SSID\n",
+ dev->name, MAC_ARG(bssid));
+Index: mac80211/net/mac80211/Kconfig
+===================================================================
+--- mac80211.orig/net/mac80211/Kconfig 2007-11-11 15:45:23.225494151 +0100
++++ mac80211/net/mac80211/Kconfig 2007-11-11 15:45:30.449905846 +0100
+@@ -13,6 +13,18 @@
+ This option enables the hardware independent IEEE 802.11
+ networking stack.
+
++config MAC80211_RCSIMPLE
++ bool "'simple' rate control algorithm" if EMBEDDED
++ default y
++ depends on MAC80211
++ help
++ This option allows you to turn off the 'simple' rate
++ control algorithm in mac80211. If you do turn it off,
++ you absolutely need another rate control algorithm.
++
++ Say Y unless you know you will have another algorithm
++ available.
++
+ config MAC80211_LEDS
+ bool "Enable LED triggers"
+ depends on MAC80211 && LEDS_TRIGGERS
+Index: mac80211/net/mac80211/Makefile
+===================================================================
+--- mac80211.orig/net/mac80211/Makefile 2007-11-11 15:45:23.233494609 +0100
++++ mac80211/net/mac80211/Makefile 2007-11-11 15:45:30.449905846 +0100
+@@ -1,8 +1,9 @@
+-obj-$(CONFIG_MAC80211) += mac80211.o rc80211_simple.o
++obj-$(CONFIG_MAC80211) += mac80211.o
+
+ mac80211-objs-$(CONFIG_MAC80211_LEDS) += ieee80211_led.o
+ mac80211-objs-$(CONFIG_MAC80211_DEBUGFS) += debugfs.o debugfs_sta.o debugfs_netdev.o debugfs_key.o
+ mac80211-objs-$(CONFIG_NET_SCHED) += wme.o
++mac80211-objs-$(CONFIG_MAC80211_RCSIMPLE) += rc80211_simple.o
+
+ mac80211-objs := \
+ ieee80211.o \
+Index: mac80211/net/mac80211/rc80211_simple.c
+===================================================================
+--- mac80211.orig/net/mac80211/rc80211_simple.c 2007-11-11 15:45:23.237494839 +0100
++++ mac80211/net/mac80211/rc80211_simple.c 2007-11-11 15:45:30.449905846 +0100
+@@ -7,7 +7,6 @@
+ * published by the Free Software Foundation.
+ */
+
+-#include <linux/module.h>
+ #include <linux/init.h>
+ #include <linux/netdevice.h>
+ #include <linux/types.h>
+@@ -29,8 +28,6 @@
+ #define RATE_CONTROL_INTERVAL (HZ / 20)
+ #define RATE_CONTROL_MIN_TX 10
+
+-MODULE_ALIAS("rc80211_default");
+-
+ static void rate_control_rate_inc(struct ieee80211_local *local,
+ struct sta_info *sta)
+ {
+@@ -393,8 +390,7 @@
+ }
+ #endif
+
+-static struct rate_control_ops rate_control_simple = {
+- .module = THIS_MODULE,
++struct rate_control_ops mac80211_rcsimple = {
+ .name = "simple",
+ .tx_status = rate_control_simple_tx_status,
+ .get_rate = rate_control_simple_get_rate,
+@@ -409,22 +405,3 @@
+ .remove_sta_debugfs = rate_control_simple_remove_sta_debugfs,
+ #endif
+ };
+-
+-
+-static int __init rate_control_simple_init(void)
+-{
+- return ieee80211_rate_control_register(&rate_control_simple);
+-}
+-
+-
+-static void __exit rate_control_simple_exit(void)
+-{
+- ieee80211_rate_control_unregister(&rate_control_simple);
+-}
+-
+-
+-subsys_initcall(rate_control_simple_init);
+-module_exit(rate_control_simple_exit);
+-
+-MODULE_DESCRIPTION("Simple rate control algorithm for ieee80211");
+-MODULE_LICENSE("GPL");
+Index: mac80211/net/mac80211/rx.c
+===================================================================
+--- mac80211.orig/net/mac80211/rx.c 2007-11-11 15:45:23.245495291 +0100
++++ mac80211/net/mac80211/rx.c 2007-11-11 15:45:30.449905846 +0100
+@@ -509,9 +509,11 @@
+ rx->key->tx_rx_count++;
+ /* TODO: add threshold stuff again */
+ } else {
++#ifdef CONFIG_MAC80211_DEBUG
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: RX protected frame,"
+ " but have no key\n", rx->dev->name);
++#endif /* CONFIG_MAC80211_DEBUG */
+ return TXRX_DROP;
+ }
+
+Index: mac80211/net/mac80211/wep.c
+===================================================================
+--- mac80211.orig/net/mac80211/wep.c 2007-11-11 15:45:23.253495749 +0100
++++ mac80211/net/mac80211/wep.c 2007-11-11 15:45:30.449905846 +0100
+@@ -16,7 +16,7 @@
+ #include <linux/crypto.h>
+ #include <linux/err.h>
+ #include <linux/mm.h>
+-#include <asm/scatterlist.h>
++#include <linux/scatterlist.h>
+
+ #include <net/mac80211.h>
+ #include "ieee80211_i.h"
+@@ -138,9 +138,7 @@
+ *icv = cpu_to_le32(~crc32_le(~0, data, data_len));
+
+ crypto_blkcipher_setkey(tfm, rc4key, klen);
+- sg.page = virt_to_page(data);
+- sg.offset = offset_in_page(data);
+- sg.length = data_len + WEP_ICV_LEN;
++ sg_init_one(&sg, data, data_len + WEP_ICV_LEN);
+ crypto_blkcipher_encrypt(&desc, &sg, &sg, sg.length);
+ }
+
+@@ -204,9 +202,7 @@
+ __le32 crc;
+
+ crypto_blkcipher_setkey(tfm, rc4key, klen);
+- sg.page = virt_to_page(data);
+- sg.offset = offset_in_page(data);
+- sg.length = data_len + WEP_ICV_LEN;
++ sg_init_one(&sg, data, data_len + WEP_ICV_LEN);
+ crypto_blkcipher_decrypt(&desc, &sg, &sg, sg.length);
+
+ crc = cpu_to_le32(~crc32_le(~0, data, data_len));
+@@ -318,9 +314,11 @@
+
+ if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) {
+ if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key)) {
++#ifdef CONFIG_MAC80211_DEBUG
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: RX WEP frame, decrypt "
+ "failed\n", rx->dev->name);
++#endif /* CONFIG_MAC80211_DEBUG */
+ return TXRX_DROP;
+ }
+ } else if (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED)) {
+Index: mac80211/net/wireless/Kconfig
+===================================================================
+--- mac80211.orig/net/wireless/Kconfig 2007-11-11 15:45:23.261496205 +0100
++++ mac80211/net/wireless/Kconfig 2007-11-11 15:45:30.453906075 +0100
+@@ -3,7 +3,7 @@
+
+ config NL80211
+ bool "nl80211 new netlink interface support"
+- depends CFG80211
++ depends on CFG80211
+ default y
+ ---help---
+ This option turns on the new netlink interface
--- /dev/null
+---
+ net/mac80211/hostapd_ioctl.h | 103 +++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 103 insertions(+)
+
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ everything/net/mac80211/hostapd_ioctl.h 2007-11-07 13:19:23.031516330 +0100
+@@ -0,0 +1,103 @@
++/*
++ * Host AP (software wireless LAN access point) user space daemon for
++ * Host AP kernel driver
++ * Copyright 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
++ * Copyright 2002-2004, Instant802 Networks, Inc.
++ * Copyright 2005, Devicescape Software, Inc.
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#ifndef HOSTAPD_IOCTL_H
++#define HOSTAPD_IOCTL_H
++
++#ifdef __KERNEL__
++#include <linux/types.h>
++#endif /* __KERNEL__ */
++
++#define PRISM2_IOCTL_PRISM2_PARAM (SIOCIWFIRSTPRIV + 0)
++#define PRISM2_IOCTL_GET_PRISM2_PARAM (SIOCIWFIRSTPRIV + 1)
++#define PRISM2_IOCTL_HOSTAPD (SIOCIWFIRSTPRIV + 3)
++
++/* PRISM2_IOCTL_PRISM2_PARAM ioctl() subtypes:
++ * This table is no longer added to, the whole sub-ioctl
++ * mess shall be deleted completely. */
++enum {
++ PRISM2_PARAM_AP_BRIDGE_PACKETS = 10,
++ PRISM2_PARAM_IEEE_802_1X = 23,
++
++ /* Instant802 additions */
++ PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES = 1001,
++ PRISM2_PARAM_PREAMBLE = 1003,
++ PRISM2_PARAM_SHORT_SLOT_TIME = 1006,
++ PRISM2_PARAM_NEXT_MODE = 1008,
++ PRISM2_PARAM_PRIVACY_INVOKED = 1014,
++ PRISM2_PARAM_EAPOL = 1023,
++ PRISM2_PARAM_MGMT_IF = 1046,
++};
++
++/* PRISM2_IOCTL_HOSTAPD ioctl() cmd:
++ * This table is no longer added to, the hostapd ioctl
++ * shall be deleted completely. */
++enum {
++ PRISM2_HOSTAPD_FLUSH = 1,
++
++ /* Instant802 additions */
++ PRISM2_HOSTAPD_GET_HW_FEATURES = 1002,
++ PRISM2_HOSTAPD_SET_RATE_SETS = 1005,
++ PRISM2_HOSTAPD_SET_CHANNEL_FLAG = 1012,
++ PRISM2_HOSTAPD_SET_REGULATORY_DOMAIN = 1013,
++ PRISM2_HOSTAPD_SET_TX_QUEUE_PARAMS = 1014,
++};
++
++#define PRISM2_HOSTAPD_MAX_BUF_SIZE 2048
++#define ALIGNED __attribute__ ((aligned))
++
++struct prism2_hostapd_param {
++ u32 cmd;
++ u8 sta_addr[ETH_ALEN];
++ u8 pad[2];
++ union {
++ struct {
++ u16 num_modes;
++ u16 flags;
++ u8 data[0] ALIGNED; /* num_modes * feature data */
++ } hw_features;
++ struct {
++ u16 mode; /* MODE_* */
++ u16 num_supported_rates;
++ u16 num_basic_rates;
++ u8 data[0] ALIGNED; /* num_supported_rates * u16 +
++ * num_basic_rates * u16 */
++ } set_rate_sets;
++ struct {
++ u16 mode; /* MODE_* */
++ u16 chan;
++ u32 flag;
++ u8 power_level; /* regulatory limit in dBm */
++ u8 antenna_max;
++ } set_channel_flag;
++ struct {
++ u32 rd;
++ } set_regulatory_domain;
++ struct {
++ u32 queue;
++ s32 aifs;
++ u32 cw_min;
++ u32 cw_max;
++ u32 burst_time; /* maximum burst time in 0.1 ms, i.e.,
++ * 10 = 1 ms */
++ } tx_queue_params;
++ } u;
++};
++
++/* Data structures used for get_hw_features ioctl */
++struct hostapd_ioctl_hw_modes_hdr {
++ int mode;
++ int num_channels;
++ int num_rates;
++};
++
++#endif /* HOSTAPD_IOCTL_H */
--- /dev/null
+---
+ net/mac80211/ieee80211.c | 5 +
+ net/mac80211/ieee80211_ioctl.c | 121 +++++++++++++++++++++++++++++++++++++++++
+ 2 files changed, 126 insertions(+)
+
+--- everything.orig/net/mac80211/ieee80211_ioctl.c 2007-11-07 13:06:34.902124618 +0100
++++ everything/net/mac80211/ieee80211_ioctl.c 2007-11-07 13:19:24.311521482 +0100
+@@ -21,6 +21,7 @@
+
+ #include <net/mac80211.h>
+ #include "ieee80211_i.h"
++#include "hostapd_ioctl.h"
+ #include "ieee80211_rate.h"
+ #include "wpa.h"
+ #include "aes_ccm.h"
+@@ -124,6 +125,47 @@ static int ieee80211_ioctl_siwgenie(stru
+ return -EOPNOTSUPP;
+ }
+
++
++static int ieee80211_ioctl_priv_hostapd(struct net_device *dev,
++ struct iw_point *p)
++{
++ struct prism2_hostapd_param *param;
++ int ret = 0;
++
++ if (p->length < sizeof(struct prism2_hostapd_param) ||
++ p->length > PRISM2_HOSTAPD_MAX_BUF_SIZE || !p->pointer) {
++ printk(KERN_DEBUG "%s: hostapd ioctl: ptr=%p len=%d min=%d "
++ "max=%d\n", dev->name, p->pointer, p->length,
++ (int)sizeof(struct prism2_hostapd_param),
++ PRISM2_HOSTAPD_MAX_BUF_SIZE);
++ return -EINVAL;
++ }
++
++ param = kmalloc(p->length, GFP_KERNEL);
++ if (!param)
++ return -ENOMEM;
++
++ if (copy_from_user(param, p->pointer, p->length)) {
++ ret = -EFAULT;
++ goto out;
++ }
++
++ switch (param->cmd) {
++ default:
++ ret = -EOPNOTSUPP;
++ break;
++ }
++
++ if (copy_to_user(p->pointer, param, p->length))
++ ret = -EFAULT;
++
++ out:
++ kfree(param);
++
++ return ret;
++}
++
++
+ static int ieee80211_ioctl_giwname(struct net_device *dev,
+ struct iw_request_info *info,
+ char *name, char *extra)
+@@ -819,6 +861,49 @@ static int ieee80211_ioctl_giwretry(stru
+ return 0;
+ }
+
++static int ieee80211_ioctl_prism2_param(struct net_device *dev,
++ struct iw_request_info *info,
++ void *wrqu, char *extra)
++{
++ struct ieee80211_sub_if_data *sdata;
++ int *i = (int *) extra;
++ int param = *i;
++ int ret = 0;
++
++ if (!capable(CAP_NET_ADMIN))
++ return -EPERM;
++
++ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++
++ switch (param) {
++ default:
++ ret = -EOPNOTSUPP;
++ break;
++ }
++
++ return ret;
++}
++
++
++static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
++ struct iw_request_info *info,
++ void *wrqu, char *extra)
++{
++ struct ieee80211_sub_if_data *sdata;
++ int *param = (int *) extra;
++ int ret = 0;
++
++ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++
++ switch (*param) {
++ default:
++ ret = -EOPNOTSUPP;
++ break;
++ }
++
++ return ret;
++}
++
+ static int ieee80211_ioctl_siwmlme(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra)
+@@ -1073,6 +1158,32 @@ static int ieee80211_ioctl_siwencodeext(
+ }
+
+
++static const struct iw_priv_args ieee80211_ioctl_priv[] = {
++ { PRISM2_IOCTL_PRISM2_PARAM,
++ IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "param" },
++ { PRISM2_IOCTL_GET_PRISM2_PARAM,
++ IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
++ IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_param" },
++};
++
++
++int ieee80211_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
++{
++ struct iwreq *wrq = (struct iwreq *) rq;
++
++ switch (cmd) {
++ /* Private ioctls (iwpriv) that have not yet been converted
++ * into new wireless extensions API */
++ case PRISM2_IOCTL_HOSTAPD:
++ if (!capable(CAP_NET_ADMIN))
++ return -EPERM;
++ return ieee80211_ioctl_priv_hostapd(dev, &wrq->u.data);
++ default:
++ return -EOPNOTSUPP;
++ }
++}
++
++
+ /* Structures to export the Wireless Handlers */
+
+ static const iw_handler ieee80211_handler[] =
+@@ -1135,9 +1246,19 @@ static const iw_handler ieee80211_handle
+ (iw_handler) NULL, /* -- hole -- */
+ };
+
++static const iw_handler ieee80211_private_handler[] =
++{ /* SIOCIWFIRSTPRIV + */
++ (iw_handler) ieee80211_ioctl_prism2_param, /* 0 */
++ (iw_handler) ieee80211_ioctl_get_prism2_param, /* 1 */
++};
++
+ const struct iw_handler_def ieee80211_iw_handler_def =
+ {
+ .num_standard = ARRAY_SIZE(ieee80211_handler),
++ .num_private = ARRAY_SIZE(ieee80211_private_handler),
++ .num_private_args = ARRAY_SIZE(ieee80211_ioctl_priv),
+ .standard = (iw_handler *) ieee80211_handler,
++ .private = (iw_handler *) ieee80211_private_handler,
++ .private_args = (struct iw_priv_args *) ieee80211_ioctl_priv,
+ .get_wireless_stats = ieee80211_get_wireless_stats,
+ };
+--- everything.orig/net/mac80211/ieee80211.c 2007-11-07 13:18:36.001511500 +0100
++++ everything/net/mac80211/ieee80211.c 2007-11-07 13:19:24.311521482 +0100
+@@ -413,6 +413,9 @@ static const struct header_ops ieee80211
+ .cache_update = eth_header_cache_update,
+ };
+
++/* HACK */
++extern int ieee80211_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
++
+ /* Must not be called for mdev */
+ void ieee80211_if_setup(struct net_device *dev)
+ {
+@@ -425,6 +428,8 @@ void ieee80211_if_setup(struct net_devic
+ dev->open = ieee80211_open;
+ dev->stop = ieee80211_stop;
+ dev->destructor = ieee80211_if_free;
++
++ dev->do_ioctl = ieee80211_ioctl;
+ }
+
+ /* WDS specialties */
--- /dev/null
+---
+ include/net/mac80211.h | 1
+ net/mac80211/ieee80211.c | 198 ++++++++++++++++++++++++++++++++++++++--
+ net/mac80211/ieee80211_common.h | 64 ++++++++++++
+ net/mac80211/ieee80211_i.h | 9 +
+ net/mac80211/ieee80211_iface.c | 66 +++++++++++++
+ net/mac80211/ieee80211_ioctl.c | 21 ++++
+ net/mac80211/ieee80211_rate.c | 3
+ net/mac80211/ieee80211_rate.h | 2
+ net/mac80211/ieee80211_sta.c | 2
+ net/mac80211/rx.c | 29 ++++-
+ net/mac80211/tx.c | 14 ++
+ net/mac80211/wme.c | 10 +-
+ 12 files changed, 399 insertions(+), 20 deletions(-)
+
+Index: mac80211/include/net/mac80211.h
+===================================================================
+--- mac80211.orig/include/net/mac80211.h 2007-11-11 15:15:42.824034853 +0100
++++ mac80211/include/net/mac80211.h 2007-11-11 15:15:53.784659457 +0100
+@@ -472,6 +472,7 @@
+ enum ieee80211_if_types {
+ IEEE80211_IF_TYPE_INVALID,
+ IEEE80211_IF_TYPE_AP,
++ IEEE80211_IF_TYPE_MGMT,
+ IEEE80211_IF_TYPE_STA,
+ IEEE80211_IF_TYPE_IBSS,
+ IEEE80211_IF_TYPE_MNTR,
+Index: mac80211/net/mac80211/ieee80211.c
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211.c 2007-11-11 15:15:51.536531354 +0100
++++ mac80211/net/mac80211/ieee80211.c 2007-11-11 15:16:22.214279577 +0100
+@@ -23,6 +23,7 @@
+ #include <linux/bitmap.h>
+ #include <net/cfg80211.h>
+
++#include "ieee80211_common.h"
+ #include "ieee80211_i.h"
+ #include "ieee80211_rate.h"
+ #include "wep.h"
+@@ -121,6 +122,152 @@
+ ieee80211_configure_filter(local);
+ }
+
++/* management interface */
++
++static void
++ieee80211_fill_frame_info(struct ieee80211_local *local,
++ struct ieee80211_frame_info *fi,
++ struct ieee80211_rx_status *status)
++{
++ if (status) {
++ struct timespec ts;
++ struct ieee80211_rate *rate;
++
++ jiffies_to_timespec(jiffies, &ts);
++ fi->hosttime = cpu_to_be64((u64) ts.tv_sec * 1000000 +
++ ts.tv_nsec / 1000);
++ fi->mactime = cpu_to_be64(status->mactime);
++ switch (status->phymode) {
++ case MODE_IEEE80211A:
++ fi->phytype = htonl(ieee80211_phytype_ofdm_dot11_a);
++ break;
++ case MODE_IEEE80211B:
++ fi->phytype = htonl(ieee80211_phytype_dsss_dot11_b);
++ break;
++ case MODE_IEEE80211G:
++ fi->phytype = htonl(ieee80211_phytype_pbcc_dot11_g);
++ break;
++ default:
++ fi->phytype = htonl(0xAAAAAAAA);
++ break;
++ }
++ fi->channel = htonl(status->channel);
++ rate = ieee80211_get_rate(local, status->phymode,
++ status->rate);
++ if (rate) {
++ fi->datarate = htonl(rate->rate);
++ if (rate->flags & IEEE80211_RATE_PREAMBLE2) {
++ if (status->rate == rate->val)
++ fi->preamble = htonl(2); /* long */
++ else if (status->rate == rate->val2)
++ fi->preamble = htonl(1); /* short */
++ } else
++ fi->preamble = htonl(0);
++ } else {
++ fi->datarate = htonl(0);
++ fi->preamble = htonl(0);
++ }
++
++ fi->antenna = htonl(status->antenna);
++ fi->priority = htonl(0xffffffff); /* no clue */
++ fi->ssi_type = htonl(ieee80211_ssi_raw);
++ fi->ssi_signal = htonl(status->ssi);
++ fi->ssi_noise = 0x00000000;
++ fi->encoding = 0;
++ } else {
++ /* clear everything because we really don't know.
++ * the msg_type field isn't present on monitor frames
++ * so we don't know whether it will be present or not,
++ * but it's ok to not clear it since it'll be assigned
++ * anyway */
++ memset(fi, 0, sizeof(*fi) - sizeof(fi->msg_type));
++
++ fi->ssi_type = htonl(ieee80211_ssi_none);
++ }
++ fi->version = htonl(IEEE80211_FI_VERSION);
++ fi->length = cpu_to_be32(sizeof(*fi) - sizeof(fi->msg_type));
++}
++
++/* this routine is actually not just for this, but also
++ * for pushing fake 'management' frames into userspace.
++ * it shall be replaced by a netlink-based system. */
++void
++ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb,
++ struct ieee80211_rx_status *status, u32 msg_type)
++{
++ struct ieee80211_frame_info *fi;
++ const size_t hlen = sizeof(struct ieee80211_frame_info);
++ struct net_device *dev = local->apdev;
++
++ skb->dev = dev;
++
++ if (skb_headroom(skb) < hlen) {
++ I802_DEBUG_INC(local->rx_expand_skb_head);
++ if (pskb_expand_head(skb, hlen, 0, GFP_ATOMIC)) {
++ dev_kfree_skb(skb);
++ return;
++ }
++ }
++
++ fi = (struct ieee80211_frame_info *) skb_push(skb, hlen);
++
++ ieee80211_fill_frame_info(local, fi, status);
++ fi->msg_type = htonl(msg_type);
++
++ dev->stats.rx_packets++;
++ dev->stats.rx_bytes += skb->len;
++
++ skb_set_mac_header(skb, 0);
++ skb->ip_summed = CHECKSUM_UNNECESSARY;
++ skb->pkt_type = PACKET_OTHERHOST;
++ skb->protocol = htons(ETH_P_802_2);
++ memset(skb->cb, 0, sizeof(skb->cb));
++ netif_rx(skb);
++}
++
++static int ieee80211_mgmt_open(struct net_device *dev)
++{
++ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
++
++ if (!netif_running(local->mdev))
++ return -EOPNOTSUPP;
++ return 0;
++}
++
++static int ieee80211_mgmt_stop(struct net_device *dev)
++{
++ return 0;
++}
++
++static int ieee80211_change_mtu_apdev(struct net_device *dev, int new_mtu)
++{
++ /* FIX: what would be proper limits for MTU?
++ * This interface uses 802.11 frames. */
++ if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN) {
++ printk(KERN_WARNING "%s: invalid MTU %d\n",
++ dev->name, new_mtu);
++ return -EINVAL;
++ }
++
++#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
++ printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu);
++#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
++ dev->mtu = new_mtu;
++ return 0;
++}
++
++void ieee80211_if_mgmt_setup(struct net_device *dev)
++{
++ ether_setup(dev);
++ dev->hard_start_xmit = ieee80211_mgmt_start_xmit;
++ dev->change_mtu = ieee80211_change_mtu_apdev;
++ dev->open = ieee80211_mgmt_open;
++ dev->stop = ieee80211_mgmt_stop;
++ dev->type = ARPHRD_IEEE80211_PRISM;
++ dev->hard_header_parse = &header_parse_80211;
++ dev->destructor = ieee80211_if_free;
++}
++
+ /* regular interfaces */
+
+ static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
+@@ -198,6 +345,7 @@
+ return -ENOLINK;
+ break;
+ case IEEE80211_IF_TYPE_AP:
++ case IEEE80211_IF_TYPE_MGMT:
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_MNTR:
+ case IEEE80211_IF_TYPE_IBSS:
+@@ -262,6 +410,10 @@
+ if (local->open_count == 0) {
+ res = dev_open(local->mdev);
+ WARN_ON(res);
++ if (local->apdev) {
++ res = dev_open(local->apdev);
++ WARN_ON(res);
++ }
+ tasklet_enable(&local->tx_pending_tasklet);
+ tasklet_enable(&local->tasklet);
+ }
+@@ -347,6 +499,9 @@
+ if (netif_running(local->mdev))
+ dev_close(local->mdev);
+
++ if (local->apdev)
++ dev_close(local->apdev);
++
+ if (local->ops->stop)
+ local->ops->stop(local_to_hw(local));
+
+@@ -646,6 +801,8 @@
+ pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
+ if (control->flags & IEEE80211_TXCTL_REQUEUE)
+ pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
++ if (control->type == IEEE80211_IF_TYPE_MGMT)
++ pkt_data->flags |= IEEE80211_TXPD_MGMT_IFACE;
+ pkt_data->queue = control->queue;
+
+ hdrlen = ieee80211_get_hdrlen_from_skb(skb);
+@@ -698,6 +855,7 @@
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_local *local = hw_to_local(hw);
+ u16 frag, type;
++ u32 msg_type;
+ struct ieee80211_tx_status_rtap_hdr *rthdr;
+ struct ieee80211_sub_if_data *sdata;
+ int monitors;
+@@ -812,9 +970,29 @@
+ local->dot11FailedCount++;
+ }
+
++ msg_type = (status->flags & IEEE80211_TX_STATUS_ACK) ?
++ ieee80211_msg_tx_callback_ack : ieee80211_msg_tx_callback_fail;
++
+ /* this was a transmitted frame, but now we want to reuse it */
+ skb_orphan(skb);
+
++ if ((status->control.flags & IEEE80211_TXCTL_REQ_TX_STATUS) &&
++ local->apdev) {
++ if (local->monitors) {
++ skb2 = skb_clone(skb, GFP_ATOMIC);
++ } else {
++ skb2 = skb;
++ skb = NULL;
++ }
++
++ if (skb2)
++ /* Send frame to hostapd */
++ ieee80211_rx_mgmt(local, skb2, NULL, msg_type);
++
++ if (!skb)
++ return;
++ }
++
+ if (!local->monitors) {
+ dev_kfree_skb(skb);
+ return;
+@@ -1161,6 +1339,8 @@
+ BUG_ON(local->reg_state != IEEE80211_DEV_REGISTERED);
+
+ local->reg_state = IEEE80211_DEV_UNREGISTERED;
++ if (local->apdev)
++ ieee80211_if_del_mgmt(local);
+
+ /*
+ * At this point, interface list manipulations are fine
+Index: mac80211/net/mac80211/ieee80211_i.h
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211_i.h 2007-11-11 15:15:42.840035769 +0100
++++ mac80211/net/mac80211/ieee80211_i.h 2007-11-11 15:15:53.792659922 +0100
+@@ -142,6 +142,7 @@
+ * when using CTS protection with IEEE 802.11g. */
+ struct ieee80211_rate *last_frag_rate;
+ int last_frag_hwrate;
++ int mgmt_interface;
+
+ /* Extra fragments (in addition to the first fragment
+ * in skb) */
+@@ -163,6 +164,7 @@
+ #define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
+ #define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
+ #define IEEE80211_TXPD_REQUEUE BIT(2)
++#define IEEE80211_TXPD_MGMT_IFACE BIT(3)
+ /* Stored in sk_buff->cb */
+ struct ieee80211_tx_packet_data {
+ int ifindex;
+@@ -408,6 +410,7 @@
+ struct list_head modes_list;
+
+ struct net_device *mdev; /* wmaster# - "master" 802.11 device */
++ struct net_device *apdev; /* wlan#ap - management frames (hostapd) */
+ int open_count;
+ int monitors;
+ unsigned int filter_flags; /* FIF_* */
+@@ -701,11 +704,14 @@
+ int ieee80211_hw_config(struct ieee80211_local *local);
+ int ieee80211_if_config(struct net_device *dev);
+ int ieee80211_if_config_beacon(struct net_device *dev);
++void ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb,
++ struct ieee80211_rx_status *status, u32 msg_type);
+ void ieee80211_prepare_rates(struct ieee80211_local *local,
+ struct ieee80211_hw_mode *mode);
+ void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
+ int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
+ void ieee80211_if_setup(struct net_device *dev);
++void ieee80211_if_mgmt_setup(struct net_device *dev);
+ struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
+ int phymode, int hwrate);
+
+@@ -772,6 +778,8 @@
+ int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
+ void ieee80211_if_free(struct net_device *dev);
+ void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
++int ieee80211_if_add_mgmt(struct ieee80211_local *local);
++void ieee80211_if_del_mgmt(struct ieee80211_local *local);
+
+ /* regdomain.c */
+ void ieee80211_regdomain_init(void);
+@@ -788,6 +796,7 @@
+ int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
+ int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
+ int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
++int ieee80211_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev);
+
+ /* utility functions/constants */
+ extern void *mac80211_wiphy_privid; /* for wiphy privid */
+Index: mac80211/net/mac80211/ieee80211_iface.c
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211_iface.c 2007-11-11 15:15:42.848036222 +0100
++++ mac80211/net/mac80211/ieee80211_iface.c 2007-11-11 15:15:53.796660158 +0100
+@@ -96,6 +96,66 @@
+ return ret;
+ }
+
++int ieee80211_if_add_mgmt(struct ieee80211_local *local)
++{
++ struct net_device *ndev;
++ struct ieee80211_sub_if_data *nsdata;
++ int ret;
++
++ ASSERT_RTNL();
++
++ ndev = alloc_netdev(sizeof(struct ieee80211_sub_if_data), "wmgmt%d",
++ ieee80211_if_mgmt_setup);
++ if (!ndev)
++ return -ENOMEM;
++ ret = dev_alloc_name(ndev, ndev->name);
++ if (ret < 0)
++ goto fail;
++
++ memcpy(ndev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
++ SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy));
++
++ nsdata = IEEE80211_DEV_TO_SUB_IF(ndev);
++ ndev->ieee80211_ptr = &nsdata->wdev;
++ nsdata->wdev.wiphy = local->hw.wiphy;
++ nsdata->type = IEEE80211_IF_TYPE_MGMT;
++ nsdata->dev = ndev;
++ nsdata->local = local;
++ ieee80211_if_sdata_init(nsdata);
++
++ ret = register_netdevice(ndev);
++ if (ret)
++ goto fail;
++
++ /*
++ * Called even when register_netdevice fails, it would
++ * oops if assigned before initialising the rest.
++ */
++ ndev->uninit = ieee80211_if_reinit;
++
++ ieee80211_debugfs_add_netdev(nsdata);
++
++ if (local->open_count > 0)
++ dev_open(ndev);
++ local->apdev = ndev;
++ return 0;
++
++fail:
++ free_netdev(ndev);
++ return ret;
++}
++
++void ieee80211_if_del_mgmt(struct ieee80211_local *local)
++{
++ struct net_device *apdev;
++
++ ASSERT_RTNL();
++ apdev = local->apdev;
++ ieee80211_debugfs_remove_netdev(IEEE80211_DEV_TO_SUB_IF(apdev));
++ local->apdev = NULL;
++ unregister_netdevice(apdev);
++}
++
+ void ieee80211_if_set_type(struct net_device *dev, int type)
+ {
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+@@ -183,6 +243,9 @@
+ ieee80211_if_sdata_deinit(sdata);
+
+ switch (sdata->type) {
++ case IEEE80211_IF_TYPE_MGMT:
++ /* nothing to do */
++ break;
+ case IEEE80211_IF_TYPE_INVALID:
+ /* cannot happen */
+ WARN_ON(1);
+@@ -294,8 +357,11 @@
+
+ void ieee80211_if_free(struct net_device *dev)
+ {
++ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
++ /* local->apdev must be NULL when freeing management interface */
++ BUG_ON(dev == local->apdev);
+ ieee80211_if_sdata_deinit(sdata);
+ free_netdev(dev);
+ }
+Index: mac80211/net/mac80211/ieee80211_rate.c
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211_rate.c 2007-11-11 15:15:42.852036451 +0100
++++ mac80211/net/mac80211/ieee80211_rate.c 2007-11-11 15:15:53.800660386 +0100
+@@ -145,7 +145,8 @@
+ struct rate_control_ref *ref, *old;
+
+ ASSERT_RTNL();
+- if (local->open_count || netif_running(local->mdev))
++ if (local->open_count || netif_running(local->mdev) ||
++ (local->apdev && netif_running(local->apdev)))
+ return -EBUSY;
+
+ ref = rate_control_alloc(name, local);
+Index: mac80211/net/mac80211/ieee80211_rate.h
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211_rate.h 2007-11-11 15:15:42.860036908 +0100
++++ mac80211/net/mac80211/ieee80211_rate.h 2007-11-11 15:15:53.800660386 +0100
+@@ -30,6 +30,8 @@
+
+ /* parameters from the caller to rate_control_get_rate(): */
+ struct ieee80211_hw_mode *mode;
++ int mgmt_data; /* this is data frame that is used for management
++ * (e.g., IEEE 802.1X EAPOL) */
+ u16 ethertype;
+ };
+
+Index: mac80211/net/mac80211/ieee80211_sta.c
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211_sta.c 2007-11-11 15:15:42.868037362 +0100
++++ mac80211/net/mac80211/ieee80211_sta.c 2007-11-11 15:15:53.800660386 +0100
+@@ -475,6 +475,8 @@
+ pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+ memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
+ pkt_data->ifindex = sdata->dev->ifindex;
++ if (sdata->type == IEEE80211_IF_TYPE_MGMT)
++ pkt_data->flags |= IEEE80211_TXPD_MGMT_IFACE;
+ if (!encrypt)
+ pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
+
+Index: mac80211/net/mac80211/rx.c
+===================================================================
+--- mac80211.orig/net/mac80211/rx.c 2007-11-11 15:15:42.872037591 +0100
++++ mac80211/net/mac80211/rx.c 2007-11-11 15:15:53.804660611 +0100
+@@ -19,6 +19,7 @@
+
+ #include "ieee80211_i.h"
+ #include "ieee80211_led.h"
++#include "ieee80211_common.h"
+ #include "wep.h"
+ #include "wpa.h"
+ #include "tkip.h"
+@@ -411,7 +412,12 @@
+ return TXRX_DROP;
+ }
+
+- return TXRX_DROP;
++ if (!rx->local->apdev)
++ return TXRX_DROP;
++
++ ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
++ ieee80211_msg_sta_not_assoc);
++ return TXRX_QUEUED;
+ }
+
+ return TXRX_CONTINUE;
+@@ -953,8 +959,15 @@
+ {
+ if (rx->sdata->eapol && ieee80211_is_eapol(rx->skb) &&
+ rx->sdata->type != IEEE80211_IF_TYPE_STA &&
+- (rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+- return TXRX_CONTINUE;
++ (rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
++ /* Pass both encrypted and unencrypted EAPOL frames to user
++ * space for processing. */
++ if (!rx->local->apdev)
++ return TXRX_DROP;
++ ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
++ ieee80211_msg_normal);
++ return TXRX_QUEUED;
++ }
+
+ if (unlikely(rx->sdata->ieee802_1x &&
+ (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
+@@ -1196,8 +1209,13 @@
+ sdata->type == IEEE80211_IF_TYPE_IBSS) &&
+ !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
+ ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->u.rx.status);
+- else
+- return TXRX_DROP;
++ else {
++ /* Management frames are sent to hostapd for processing */
++ if (!rx->local->apdev)
++ return TXRX_DROP;
++ ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
++ ieee80211_msg_normal);
++ }
+
+ return TXRX_QUEUED;
+ }
+@@ -1407,6 +1425,7 @@
+ /* take everything */
+ break;
+ case IEEE80211_IF_TYPE_INVALID:
++ case IEEE80211_IF_TYPE_MGMT:
+ /* should never get here */
+ WARN_ON(1);
+ break;
+Index: mac80211/net/mac80211/tx.c
+===================================================================
+--- mac80211.orig/net/mac80211/tx.c 2007-11-11 15:15:42.880038048 +0100
++++ mac80211/net/mac80211/tx.c 2007-11-11 15:15:53.804660611 +0100
+@@ -258,7 +258,7 @@
+ return TXRX_CONTINUE;
+ }
+
+- if (unlikely(/* !injected && */ tx->sdata->ieee802_1x &&
++ if (unlikely(!tx->u.tx.mgmt_interface && tx->sdata->ieee802_1x &&
+ !(sta_flags & WLAN_STA_AUTHORIZED))) {
+ #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: dropped frame to " MAC_FMT
+@@ -568,6 +568,8 @@
+ memset(&extra, 0, sizeof(extra));
+ extra.mode = tx->u.tx.mode;
+ extra.ethertype = tx->ethertype;
++ extra.mgmt_data = tx->sdata &&
++ tx->sdata->type == IEEE80211_IF_TYPE_MGMT;
+
+ tx->u.tx.rate = rate_control_get_rate(tx->local, tx->dev,
+ tx->skb, &extra);
+@@ -1076,7 +1078,7 @@
+ }
+
+ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
+- struct ieee80211_tx_control *control)
++ struct ieee80211_tx_control *control, int mgmt)
+ {
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
+@@ -1107,6 +1109,7 @@
+ rcu_read_lock();
+
+ sta = tx.sta;
++ tx.u.tx.mgmt_interface = mgmt;
+ tx.u.tx.mode = local->hw.conf.mode;
+
+ for (handler = local->tx_handlers; *handler != NULL;
+@@ -1253,7 +1256,8 @@
+ control.flags |= IEEE80211_TXCTL_REQUEUE;
+ control.queue = pkt_data->queue;
+
+- ret = ieee80211_tx(odev, skb, &control);
++ ret = ieee80211_tx(odev, skb, &control,
++ control.type == IEEE80211_IF_TYPE_MGMT);
+ dev_put(odev);
+
+ return ret;
+@@ -1498,6 +1502,8 @@
+ pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
+ memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
+ pkt_data->ifindex = dev->ifindex;
++ if (sdata->type == IEEE80211_IF_TYPE_MGMT)
++ pkt_data->flags |= IEEE80211_TXPD_MGMT_IFACE;
+
+ skb->dev = local->mdev;
+ dev->stats.tx_packets++;
+@@ -1555,6 +1561,8 @@
+ pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+ memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
+ pkt_data->ifindex = sdata->dev->ifindex;
++ if (sdata->type == IEEE80211_IF_TYPE_MGMT)
++ pkt_data->flags |= IEEE80211_TXPD_MGMT_IFACE;
+
+ skb->priority = 20; /* use hardcoded priority for mgmt TX queue */
+ skb->dev = sdata->local->mdev;
+Index: mac80211/net/mac80211/wme.c
+===================================================================
+--- mac80211.orig/net/mac80211/wme.c 2007-11-11 15:15:42.888038502 +0100
++++ mac80211/net/mac80211/wme.c 2007-11-11 15:15:53.804660611 +0100
+@@ -94,6 +94,8 @@
+ static inline int classify80211(struct sk_buff *skb, struct Qdisc *qd)
+ {
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
++ struct ieee80211_tx_packet_data *pkt_data =
++ (struct ieee80211_tx_packet_data *) skb->cb;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ unsigned short fc = le16_to_cpu(hdr->frame_control);
+ int qos;
+@@ -106,8 +108,12 @@
+ return IEEE80211_TX_QUEUE_DATA0;
+ }
+
+- if (0 /* injected */) {
+- /* use AC from radiotap */
++ if (unlikely(pkt_data->flags & IEEE80211_TXPD_MGMT_IFACE)) {
++ /* Data frames from hostapd (mainly, EAPOL) use AC_VO
++ * and they will include QoS control fields if
++ * the target STA is using WME. */
++ skb->priority = 7;
++ return ieee802_1d_to_ac[skb->priority];
+ }
+
+ /* is this a QoS frame? */
+Index: mac80211/net/mac80211/ieee80211_ioctl.c
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211_ioctl.c 2007-11-11 15:15:51.532531127 +0100
++++ mac80211/net/mac80211/ieee80211_ioctl.c 2007-11-11 15:15:53.808660833 +0100
+@@ -840,16 +840,29 @@
+ void *wrqu, char *extra)
+ {
+ struct ieee80211_sub_if_data *sdata;
++ struct ieee80211_local *local;
+ int *i = (int *) extra;
+ int param = *i;
++ int value = *(i + 1);
+ int ret = 0;
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++ local = sdata->local;
+
+ switch (param) {
++ case PRISM2_PARAM_MGMT_IF:
++ if (value == 1) {
++ if (!local->apdev)
++ ret = ieee80211_if_add_mgmt(local);
++ } else if (value == 0) {
++ if (local->apdev)
++ ieee80211_if_del_mgmt(local);
++ } else
++ ret = -EINVAL;
++ break;
+ default:
+ ret = -EOPNOTSUPP;
+ break;
+@@ -864,12 +877,20 @@
+ void *wrqu, char *extra)
+ {
+ struct ieee80211_sub_if_data *sdata;
++ struct ieee80211_local *local;
+ int *param = (int *) extra;
+ int ret = 0;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++ local = sdata->local;
+
+ switch (*param) {
++ case PRISM2_PARAM_MGMT_IF:
++ if (local->apdev)
++ *param = local->apdev->ifindex;
++ else
++ ret = -ENOENT;
++ break;
+ default:
+ ret = -EOPNOTSUPP;
+ break;
--- /dev/null
+Subject: mac80211: allow AP and VLAN modes
+
+This adds AP/VLAN modes to the list of modes that a mac80211
+interface can be created in/switched into.
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+
+---
+ net/mac80211/cfg.c | 4 ++++
+ net/mac80211/ieee80211_ioctl.c | 3 +++
+ 2 files changed, 7 insertions(+)
+
+--- everything.orig/net/mac80211/cfg.c 2007-10-30 15:33:43.227379286 +0100
++++ everything/net/mac80211/cfg.c 2007-11-07 13:19:27.981515569 +0100
+@@ -25,6 +25,10 @@ nl80211_type_to_mac80211_type(enum nl802
+ return IEEE80211_IF_TYPE_STA;
+ case NL80211_IFTYPE_MONITOR:
+ return IEEE80211_IF_TYPE_MNTR;
++ case NL80211_IFTYPE_AP:
++ return IEEE80211_IF_TYPE_AP;
++ case NL80211_IFTYPE_AP_VLAN:
++ return IEEE80211_IF_TYPE_VLAN;
+ default:
+ return IEEE80211_IF_TYPE_INVALID;
+ }
+--- everything.orig/net/mac80211/ieee80211_ioctl.c 2007-11-07 13:19:25.851524684 +0100
++++ everything/net/mac80211/ieee80211_ioctl.c 2007-11-07 13:19:27.981515569 +0100
+@@ -284,6 +284,9 @@ static int ieee80211_ioctl_siwmode(struc
+ case IW_MODE_MONITOR:
+ type = IEEE80211_IF_TYPE_MNTR;
+ break;
++ case IW_MODE_MASTER:
++ type = IEEE80211_IF_TYPE_AP;
++ break;
+ default:
+ return -EINVAL;
+ }
--- /dev/null
+Subject: mac80211: allow WDS mode
+
+This allows creating interfaces in WDS mode or switching
+existing ones into WDS mode (both via cfg80211.)
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+
+---
+ net/mac80211/cfg.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- everything.orig/net/mac80211/cfg.c 2007-11-07 13:19:27.981515569 +0100
++++ everything/net/mac80211/cfg.c 2007-11-07 13:19:29.441515732 +0100
+@@ -29,6 +29,8 @@ nl80211_type_to_mac80211_type(enum nl802
+ return IEEE80211_IF_TYPE_AP;
+ case NL80211_IFTYPE_AP_VLAN:
+ return IEEE80211_IF_TYPE_VLAN;
++ case NL80211_IFTYPE_WDS:
++ return IEEE80211_IF_TYPE_WDS;
+ default:
+ return IEEE80211_IF_TYPE_INVALID;
+ }
--- /dev/null
+---
+ net/mac80211/ieee80211_ioctl.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- everything.orig/net/mac80211/ieee80211_ioctl.c 2007-11-07 13:19:27.981515569 +0100
++++ everything/net/mac80211/ieee80211_ioctl.c 2007-11-07 13:19:30.781513182 +0100
+@@ -882,6 +882,9 @@ static int ieee80211_ioctl_prism2_param(
+ local = sdata->local;
+
+ switch (param) {
++ case PRISM2_PARAM_AP_BRIDGE_PACKETS:
++ local->bridge_packets = value;
++ break;
+ case PRISM2_PARAM_MGMT_IF:
+ if (value == 1) {
+ if (!local->apdev)
+@@ -914,6 +917,9 @@ static int ieee80211_ioctl_get_prism2_pa
+ local = sdata->local;
+
+ switch (*param) {
++ case PRISM2_PARAM_AP_BRIDGE_PACKETS:
++ *param = local->bridge_packets;
++ break;
+ case PRISM2_PARAM_MGMT_IF:
+ if (local->apdev)
+ *param = local->apdev->ifindex;
--- /dev/null
+---
+ net/mac80211/ieee80211_ioctl.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- everything.orig/net/mac80211/ieee80211_ioctl.c 2007-11-07 13:19:30.781513182 +0100
++++ everything/net/mac80211/ieee80211_ioctl.c 2007-11-07 13:19:32.281514919 +0100
+@@ -882,6 +882,9 @@ static int ieee80211_ioctl_prism2_param(
+ local = sdata->local;
+
+ switch (param) {
++ case PRISM2_PARAM_IEEE_802_1X:
++ sdata->ieee802_1x = value;
++ break;
+ case PRISM2_PARAM_AP_BRIDGE_PACKETS:
+ local->bridge_packets = value;
+ break;
+@@ -917,6 +920,9 @@ static int ieee80211_ioctl_get_prism2_pa
+ local = sdata->local;
+
+ switch (*param) {
++ case PRISM2_PARAM_IEEE_802_1X:
++ *param = sdata->ieee802_1x;
++ break;
+ case PRISM2_PARAM_AP_BRIDGE_PACKETS:
+ *param = local->bridge_packets;
+ break;
--- /dev/null
+---
+ net/mac80211/ieee80211_ioctl.c | 102 +++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 102 insertions(+)
+
+--- everything.orig/net/mac80211/ieee80211_ioctl.c 2007-11-07 13:19:32.281514919 +0100
++++ everything/net/mac80211/ieee80211_ioctl.c 2007-11-07 13:19:33.681513453 +0100
+@@ -125,6 +125,105 @@ static int ieee80211_ioctl_siwgenie(stru
+ return -EOPNOTSUPP;
+ }
+
++/*
++ * Wow. This ioctl interface is such crap, it's tied
++ * to internal definitions. I hope it dies soon.
++ */
++static int mode_to_hostapd_mode(enum ieee80211_phymode mode)
++{
++ switch (mode) {
++ case MODE_IEEE80211A:
++ return 0;
++ case MODE_IEEE80211B:
++ return 1;
++ case MODE_IEEE80211G:
++ return 3;
++ case NUM_IEEE80211_MODES:
++ WARN_ON(1);
++ break;
++ }
++ WARN_ON(1);
++ return -1;
++}
++
++static int channel_flags_to_hostapd_flags(int flags)
++{
++ int res = 0;
++
++ if (flags & IEEE80211_CHAN_W_SCAN)
++ res |= 1;
++ if (flags & IEEE80211_CHAN_W_ACTIVE_SCAN)
++ res |= 2;
++ if (flags & IEEE80211_CHAN_W_IBSS)
++ res |= 4;
++
++ return res;
++}
++
++struct ieee80211_channel_data {
++ short chan; /* channel number (IEEE 802.11) */
++ short freq; /* frequency in MHz */
++ int flag; /* flag for hostapd use (IEEE80211_CHAN_*) */
++};
++
++struct ieee80211_rate_data {
++ int rate; /* rate in 100 kbps */
++ int flags; /* IEEE80211_RATE_ flags */
++};
++
++static int ieee80211_ioctl_get_hw_features(struct net_device *dev,
++ struct prism2_hostapd_param *param,
++ int param_len)
++{
++ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
++ u8 *pos = param->u.hw_features.data;
++ int left = param_len - (pos - (u8 *) param);
++ int i;
++ struct hostapd_ioctl_hw_modes_hdr *hdr;
++ struct ieee80211_rate_data *rate;
++ struct ieee80211_channel_data *chan;
++ struct ieee80211_hw_mode *mode;
++
++ param->u.hw_features.flags = 0;
++
++ param->u.hw_features.num_modes = 0;
++ list_for_each_entry(mode, &local->modes_list, list) {
++ int clen, rlen;
++
++ param->u.hw_features.num_modes++;
++ clen =
++ mode->num_channels * sizeof(struct ieee80211_channel_data);
++ rlen = mode->num_rates * sizeof(struct ieee80211_rate_data);
++ if (left < sizeof(*hdr) + clen + rlen)
++ return -E2BIG;
++ left -= sizeof(*hdr) + clen + rlen;
++
++ hdr = (struct hostapd_ioctl_hw_modes_hdr *)pos;
++ hdr->mode = mode_to_hostapd_mode(mode->mode);
++ hdr->num_channels = mode->num_channels;
++ hdr->num_rates = mode->num_rates;
++
++ pos = (u8 *) (hdr + 1);
++ chan = (struct ieee80211_channel_data *)pos;
++ for (i = 0; i < mode->num_channels; i++) {
++ chan[i].chan = mode->channels[i].chan;
++ chan[i].freq = mode->channels[i].freq;
++ chan[i].flag = channel_flags_to_hostapd_flags(
++ mode->channels[i].flag);
++ }
++ pos += clen;
++
++ rate = (struct ieee80211_rate_data *)pos;
++ for (i = 0; i < mode->num_rates; i++) {
++ rate[i].rate = mode->rates[i].rate;
++ rate[i].flags = mode->rates[i].flags;
++ }
++ pos += rlen;
++ }
++
++ return 0;
++}
++
+
+ static int ieee80211_ioctl_priv_hostapd(struct net_device *dev,
+ struct iw_point *p)
+@@ -151,6 +250,9 @@ static int ieee80211_ioctl_priv_hostapd(
+ }
+
+ switch (param->cmd) {
++ case PRISM2_HOSTAPD_GET_HW_FEATURES:
++ ret = ieee80211_ioctl_get_hw_features(dev, param, p->length);
++ break;
+ default:
+ ret = -EOPNOTSUPP;
+ break;
--- /dev/null
+---
+ net/mac80211/ieee80211_ioctl.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- everything.orig/net/mac80211/ieee80211_ioctl.c 2007-11-07 13:19:33.681513453 +0100
++++ everything/net/mac80211/ieee80211_ioctl.c 2007-11-07 13:19:35.171517576 +0100
+@@ -984,6 +984,9 @@ static int ieee80211_ioctl_prism2_param(
+ local = sdata->local;
+
+ switch (param) {
++ case PRISM2_PARAM_EAPOL:
++ sdata->eapol = value;
++ break;
+ case PRISM2_PARAM_IEEE_802_1X:
+ sdata->ieee802_1x = value;
+ break;
+@@ -1022,6 +1025,9 @@ static int ieee80211_ioctl_get_prism2_pa
+ local = sdata->local;
+
+ switch (*param) {
++ case PRISM2_PARAM_EAPOL:
++ *param = sdata->eapol;
++ break;
+ case PRISM2_PARAM_IEEE_802_1X:
+ *param = sdata->ieee802_1x;
+ break;
--- /dev/null
+Subject: cfg80211/nl80211: introduce key handling
+
+This introduces key handling to cfg80211/nl80211. Default
+and group keys can be added, changed and removed; sequence
+counters for each key can be retrieved.
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+
+---
+ include/linux/nl80211.h | 34 +++++
+ include/net/cfg80211.h | 44 +++++++
+ net/wireless/core.c | 3
+ net/wireless/nl80211.c | 289 ++++++++++++++++++++++++++++++++++++++++++++++++
+ 4 files changed, 370 insertions(+)
+
+--- everything.orig/include/linux/nl80211.h 2007-10-30 15:33:43.587381346 +0100
++++ everything/include/linux/nl80211.h 2007-11-07 13:19:37.861516599 +0100
+@@ -37,6 +37,16 @@
+ * userspace to request deletion of a virtual interface, then requires
+ * attribute %NL80211_ATTR_IFINDEX.
+ *
++ * @NL80211_CMD_GET_KEY: Get sequence counter information for a key specified
++ * by %NL80211_ATTR_KEY_IDX and/or %NL80211_ATTR_MAC.
++ * @NL80211_CMD_SET_KEY: Set key attributes %NL80211_ATTR_KEY_DEFAULT or
++ * %NL80211_ATTR_KEY_THRESHOLD.
++ * @NL80211_CMD_NEW_KEY: add a key with given %NL80211_ATTR_KEY_DATA,
++ * %NL80211_ATTR_KEY_IDX, %NL80211_ATTR_MAC and %NL80211_ATTR_KEY_CIPHER
++ * attributes.
++ * @NL80211_CMD_DEL_KEY: delete a key identified by %NL80211_ATTR_KEY_IDX
++ * or %NL80211_ATTR_MAC.
++ *
+ * @NL80211_CMD_MAX: highest used command number
+ * @__NL80211_CMD_AFTER_LAST: internal use
+ */
+@@ -54,6 +64,11 @@ enum nl80211_commands {
+ NL80211_CMD_NEW_INTERFACE,
+ NL80211_CMD_DEL_INTERFACE,
+
++ NL80211_CMD_GET_KEY,
++ NL80211_CMD_SET_KEY,
++ NL80211_CMD_NEW_KEY,
++ NL80211_CMD_DEL_KEY,
++
+ /* add commands here */
+
+ /* used to define NL80211_CMD_MAX below */
+@@ -75,6 +90,17 @@ enum nl80211_commands {
+ * @NL80211_ATTR_IFNAME: network interface name
+ * @NL80211_ATTR_IFTYPE: type of virtual interface, see &enum nl80211_iftype
+ *
++ * @NL80211_ATTR_MAC: MAC address (various uses)
++ *
++ * @NL80211_ATTR_KEY_DATA: (temporal) key data; for TKIP this consists of
++ * 16 bytes encryption key followed by 8 bytes each for TX and RX MIC
++ * keys
++ * @NL80211_ATTR_KEY_IDX: key ID (u8, 0-3)
++ * @NL80211_ATTR_KEY_CIPHER: key cipher suite (u32, as defined by IEEE 802.11
++ * section 7.3.2.25.1, e.g. 0x000FAC04)
++ * @NL80211_ATTR_KEY_SEQ: transmit key sequence number (IV/PN) for TKIP and
++ * CCMP keys, each six bytes in little endian
++ *
+ * @NL80211_ATTR_MAX: highest attribute number currently defined
+ * @__NL80211_ATTR_AFTER_LAST: internal use
+ */
+@@ -89,6 +115,14 @@ enum nl80211_attrs {
+ NL80211_ATTR_IFNAME,
+ NL80211_ATTR_IFTYPE,
+
++ NL80211_ATTR_MAC,
++
++ NL80211_ATTR_KEY_DATA,
++ NL80211_ATTR_KEY_IDX,
++ NL80211_ATTR_KEY_CIPHER,
++ NL80211_ATTR_KEY_SEQ,
++ NL80211_ATTR_KEY_DEFAULT,
++
+ /* add attributes here, update the policy in nl80211.c */
+
+ __NL80211_ATTR_AFTER_LAST,
+--- everything.orig/net/wireless/nl80211.c 2007-10-30 15:33:43.637380153 +0100
++++ everything/net/wireless/nl80211.c 2007-11-07 13:19:38.201511066 +0100
+@@ -61,6 +61,14 @@ static struct nla_policy nl80211_policy[
+ [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
+ [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
+ [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
++
++ [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
++
++ [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
++ .len = WLAN_MAX_KEY_LEN },
++ [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
++ [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
++ [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
+ };
+
+ /* message building helper */
+@@ -335,6 +343,263 @@ static int nl80211_del_interface(struct
+ return err;
+ }
+
++struct get_key_cookie {
++ struct sk_buff *msg;
++ int error;
++};
++
++static void get_key_callback(void *c, struct key_params *params)
++{
++ struct get_key_cookie *cookie = c;
++
++ if (params->key)
++ NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
++ params->key_len, params->key);
++
++ if (params->seq)
++ NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
++ params->seq_len, params->seq);
++
++ if (params->cipher)
++ NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
++ params->cipher);
++
++ return;
++ nla_put_failure:
++ cookie->error = 1;
++}
++
++static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
++{
++ struct cfg80211_registered_device *drv;
++ int err;
++ struct net_device *dev;
++ u8 key_idx = 0;
++ u8 *mac_addr = NULL;
++ struct get_key_cookie cookie = {
++ .error = 0,
++ };
++ void *hdr;
++ struct sk_buff *msg;
++
++ if (info->attrs[NL80211_ATTR_KEY_IDX])
++ key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
++
++ if (key_idx > 3)
++ return -EINVAL;
++
++ if (info->attrs[NL80211_ATTR_MAC])
++ mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
++
++ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
++ if (err)
++ return err;
++
++ if (!drv->ops->get_key) {
++ err = -EOPNOTSUPP;
++ goto out;
++ }
++
++ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
++ if (!msg) {
++ err = -ENOMEM;
++ goto out;
++ }
++
++ hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
++ NL80211_CMD_NEW_KEY);
++
++ if (IS_ERR(hdr)) {
++ err = PTR_ERR(hdr);
++ goto out;
++ }
++
++ cookie.msg = msg;
++
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
++ NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
++ if (mac_addr)
++ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
++
++ rtnl_lock();
++ err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr,
++ &cookie, get_key_callback);
++ rtnl_unlock();
++
++ if (err)
++ goto out;
++
++ if (cookie.error)
++ goto nla_put_failure;
++
++ genlmsg_end(msg, hdr);
++ err = genlmsg_unicast(msg, info->snd_pid);
++ goto out;
++
++ nla_put_failure:
++ err = -ENOBUFS;
++ nlmsg_free(msg);
++ out:
++ cfg80211_put_dev(drv);
++ dev_put(dev);
++ return err;
++}
++
++static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
++{
++ struct cfg80211_registered_device *drv;
++ int err;
++ struct net_device *dev;
++ u8 key_idx;
++
++ if (!info->attrs[NL80211_ATTR_KEY_IDX])
++ return -EINVAL;
++
++ key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
++
++ if (key_idx > 3)
++ return -EINVAL;
++
++ /* currently only support setting default key */
++ if (!info->attrs[NL80211_ATTR_KEY_DEFAULT])
++ return -EINVAL;
++
++ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
++ if (err)
++ return err;
++
++ if (!drv->ops->set_default_key) {
++ err = -EOPNOTSUPP;
++ goto out;
++ }
++
++ rtnl_lock();
++ err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx);
++ rtnl_unlock();
++
++ out:
++ cfg80211_put_dev(drv);
++ dev_put(dev);
++ return err;
++}
++
++static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
++{
++ struct cfg80211_registered_device *drv;
++ int err;
++ struct net_device *dev;
++ struct key_params params;
++ u8 key_idx = 0;
++ u8 *mac_addr = NULL;
++
++ memset(¶ms, 0, sizeof(params));
++
++ if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
++ return -EINVAL;
++
++ if (info->attrs[NL80211_ATTR_KEY_DATA]) {
++ params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
++ params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
++ }
++
++ if (info->attrs[NL80211_ATTR_KEY_IDX])
++ key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
++
++ params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
++
++ if (info->attrs[NL80211_ATTR_MAC])
++ mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
++
++ if (key_idx > 3)
++ return -EINVAL;
++
++ /*
++ * Disallow pairwise keys with non-zero index unless it's WEP
++ * (because current deployments use pairwise WEP keys with
++ * non-zero indizes but 802.11i clearly specifies to use zero)
++ */
++ if (mac_addr && key_idx &&
++ params.cipher != WLAN_CIPHER_SUITE_WEP40 &&
++ params.cipher != WLAN_CIPHER_SUITE_WEP104)
++ return -EINVAL;
++
++ /* TODO: add definitions for the lengths to linux/ieee80211.h */
++ switch (params.cipher) {
++ case WLAN_CIPHER_SUITE_WEP40:
++ if (params.key_len != 5)
++ return -EINVAL;
++ break;
++ case WLAN_CIPHER_SUITE_TKIP:
++ if (params.key_len != 32)
++ return -EINVAL;
++ break;
++ case WLAN_CIPHER_SUITE_CCMP:
++ if (params.key_len != 16)
++ return -EINVAL;
++ break;
++ case WLAN_CIPHER_SUITE_WEP104:
++ if (params.key_len != 13)
++ return -EINVAL;
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
++ if (err)
++ return err;
++
++ if (!drv->ops->add_key) {
++ err = -EOPNOTSUPP;
++ goto out;
++ }
++
++ rtnl_lock();
++ err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms);
++ rtnl_unlock();
++
++ out:
++ cfg80211_put_dev(drv);
++ dev_put(dev);
++ return err;
++}
++
++static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
++{
++ struct cfg80211_registered_device *drv;
++ int err;
++ struct net_device *dev;
++ u8 key_idx = 0;
++ u8 *mac_addr = NULL;
++
++ if (info->attrs[NL80211_ATTR_KEY_IDX])
++ key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
++
++ if (key_idx > 3)
++ return -EINVAL;
++
++ if (info->attrs[NL80211_ATTR_MAC])
++ mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
++
++ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
++ if (err)
++ return err;
++
++ if (!drv->ops->del_key) {
++ err = -EOPNOTSUPP;
++ goto out;
++ }
++
++ rtnl_lock();
++ err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
++ rtnl_unlock();
++
++ out:
++ cfg80211_put_dev(drv);
++ dev_put(dev);
++ return err;
++}
++
+ static struct genl_ops nl80211_ops[] = {
+ {
+ .cmd = NL80211_CMD_GET_WIPHY,
+@@ -374,6 +639,30 @@ static struct genl_ops nl80211_ops[] = {
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
++ {
++ .cmd = NL80211_CMD_GET_KEY,
++ .doit = nl80211_get_key,
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ },
++ {
++ .cmd = NL80211_CMD_SET_KEY,
++ .doit = nl80211_set_key,
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ },
++ {
++ .cmd = NL80211_CMD_NEW_KEY,
++ .doit = nl80211_new_key,
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ },
++ {
++ .cmd = NL80211_CMD_DEL_KEY,
++ .doit = nl80211_del_key,
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ },
+ };
+
+ /* multicast groups */
+--- everything.orig/net/wireless/core.c 2007-10-30 15:33:43.677380478 +0100
++++ everything/net/wireless/core.c 2007-11-07 13:19:38.221513833 +0100
+@@ -184,6 +184,9 @@ struct wiphy *wiphy_new(struct cfg80211_
+ struct cfg80211_registered_device *drv;
+ int alloc_size;
+
++ WARN_ON(!ops->add_key && ops->del_key);
++ WARN_ON(ops->add_key && !ops->del_key);
++
+ alloc_size = sizeof(*drv) + sizeof_priv;
+
+ drv = kzalloc(alloc_size, GFP_KERNEL);
+--- everything.orig/include/net/cfg80211.h 2007-10-30 15:33:43.617381780 +0100
++++ everything/include/net/cfg80211.h 2007-11-07 13:19:38.231512748 +0100
+@@ -49,6 +49,26 @@ extern int ieee80211_radiotap_iterator_n
+ struct ieee80211_radiotap_iterator *iterator);
+
+
++ /**
++ * struct key_params - key information
++ *
++ * Information about a key
++ *
++ * @key: key material
++ * @key_len: length of key material
++ * @cipher: cipher suite selector
++ * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
++ * with the get_key() callback, must be in little endian,
++ * length given by @seq_len.
++ */
++struct key_params {
++ u8 *key;
++ u8 *seq;
++ int key_len;
++ int seq_len;
++ u32 cipher;
++};
++
+ /* from net/wireless.h */
+ struct wiphy;
+
+@@ -71,6 +91,18 @@ struct wiphy;
+ *
+ * @change_virtual_intf: change type of virtual interface
+ *
++ * @add_key: add a key with the given parameters. @mac_addr will be %NULL
++ * when adding a group key.
++ *
++ * @get_key: get information about the key with the given parameters.
++ * @mac_addr will be %NULL when requesting information for a group
++ * key. All pointers given to the @callback function need not be valid
++ * after it returns.
++ *
++ * @del_key: remove a key given the @mac_addr (%NULL for a group key)
++ * and @key_index
++ *
++ * @set_default_key: set the default key on an interface
+ */
+ struct cfg80211_ops {
+ int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
+@@ -78,6 +110,18 @@ struct cfg80211_ops {
+ int (*del_virtual_intf)(struct wiphy *wiphy, int ifindex);
+ int (*change_virtual_intf)(struct wiphy *wiphy, int ifindex,
+ enum nl80211_iftype type);
++
++ int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
++ u8 key_index, u8 *mac_addr,
++ struct key_params *params);
++ int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
++ u8 key_index, u8 *mac_addr, void *cookie,
++ void (*callback)(void *cookie, struct key_params*));
++ int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
++ u8 key_index, u8 *mac_addr);
++ int (*set_default_key)(struct wiphy *wiphy,
++ struct net_device *netdev,
++ u8 key_index);
+ };
+
+ #endif /* __NET_CFG80211_H */
--- /dev/null
+Subject: mac80211: support adding/removing keys via cfg80211
+
+This adds the necessary hooks to mac80211 to allow userspace
+to edit keys with cfg80211 (through nl80211.)
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+
+---
+ net/mac80211/cfg.c | 91 +++++++++++++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 91 insertions(+)
+
+--- everything.orig/net/mac80211/cfg.c 2007-11-07 13:19:29.441515732 +0100
++++ everything/net/mac80211/cfg.c 2007-11-07 13:19:39.531517685 +0100
+@@ -6,6 +6,7 @@
+ * This file is GPLv2 as found in COPYING.
+ */
+
++#include <linux/ieee80211.h>
+ #include <linux/nl80211.h>
+ #include <linux/rtnetlink.h>
+ #include <net/net_namespace.h>
+@@ -105,8 +106,98 @@ static int ieee80211_change_iface(struct
+ return 0;
+ }
+
++static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
++ u8 key_idx, u8 *mac_addr,
++ struct key_params *params)
++{
++ struct ieee80211_sub_if_data *sdata;
++ struct sta_info *sta = NULL;
++ enum ieee80211_key_alg alg;
++ int ret;
++
++ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++
++ switch (params->cipher) {
++ case WLAN_CIPHER_SUITE_WEP40:
++ case WLAN_CIPHER_SUITE_WEP104:
++ alg = ALG_WEP;
++ break;
++ case WLAN_CIPHER_SUITE_TKIP:
++ alg = ALG_TKIP;
++ break;
++ case WLAN_CIPHER_SUITE_CCMP:
++ alg = ALG_CCMP;
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ if (mac_addr) {
++ sta = sta_info_get(sdata->local, mac_addr);
++ if (!sta)
++ return -ENOENT;
++ }
++
++ ret = 0;
++ if (!ieee80211_key_alloc(sdata, sta, alg, key_idx,
++ params->key_len, params->key))
++ ret = -ENOMEM;
++
++ if (sta)
++ sta_info_put(sta);
++
++ return ret;
++}
++
++static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
++ u8 key_idx, u8 *mac_addr)
++{
++ struct ieee80211_sub_if_data *sdata;
++ struct sta_info *sta;
++ int ret;
++
++ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++
++ if (mac_addr) {
++ sta = sta_info_get(sdata->local, mac_addr);
++ if (!sta)
++ return -ENOENT;
++
++ ret = 0;
++ if (sta->key)
++ ieee80211_key_free(sta->key);
++ else
++ ret = -ENOENT;
++
++ sta_info_put(sta);
++ return ret;
++ }
++
++ if (!sdata->keys[key_idx])
++ return -ENOENT;
++
++ ieee80211_key_free(sdata->keys[key_idx]);
++
++ return 0;
++}
++
++static int ieee80211_config_default_key(struct wiphy *wiphy,
++ struct net_device *dev,
++ u8 key_idx)
++{
++ struct ieee80211_sub_if_data *sdata;
++
++ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++ ieee80211_set_default_key(sdata, key_idx);
++
++ return 0;
++}
++
+ struct cfg80211_ops mac80211_config_ops = {
+ .add_virtual_intf = ieee80211_add_iface,
+ .del_virtual_intf = ieee80211_del_iface,
+ .change_virtual_intf = ieee80211_change_iface,
++ .add_key = ieee80211_add_key,
++ .del_key = ieee80211_del_key,
++ .set_default_key = ieee80211_config_default_key,
+ };
--- /dev/null
+Subject: mac80211: support getting key sequence counters via cfg80211
+
+This implements cfg80211's get_key() to allow retrieving the sequence
+counter for a TKIP or CCMP key from userspace. It also cleans up and
+documents the associated low-level driver interface.
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+
+---
+ include/net/mac80211.h | 14 ++------
+ net/mac80211/cfg.c | 85 ++++++++++++++++++++++++++++++++++++++++++++++++-
+ 2 files changed, 89 insertions(+), 10 deletions(-)
+
+Index: mac80211/net/mac80211/cfg.c
+===================================================================
+--- mac80211.orig/net/mac80211/cfg.c 2007-11-11 15:46:41.497954646 +0100
++++ mac80211/net/mac80211/cfg.c 2007-11-11 15:46:51.346515884 +0100
+@@ -1,7 +1,7 @@
+ /*
+ * mac80211 configuration hooks for cfg80211
+ *
+- * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
++ * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This file is GPLv2 as found in COPYING.
+ */
+@@ -180,6 +180,88 @@
+ return 0;
+ }
+
++static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
++ u8 key_idx, u8 *mac_addr, void *cookie,
++ void (*callback)(void *cookie,
++ struct key_params *params))
++{
++ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++ struct sta_info *sta = NULL;
++ u8 seq[6] = {0};
++ struct key_params params;
++ struct ieee80211_key *key;
++ u32 iv32;
++ u16 iv16;
++ int err = -ENOENT;
++
++ if (mac_addr) {
++ sta = sta_info_get(sdata->local, mac_addr);
++ if (!sta)
++ goto out;
++
++ key = sta->key;
++ } else
++ key = sdata->keys[key_idx];
++
++ if (!key)
++ goto out;
++
++ memset(¶ms, 0, sizeof(params));
++
++ switch (key->conf.alg) {
++ case ALG_TKIP:
++ params.cipher = WLAN_CIPHER_SUITE_TKIP;
++
++ iv32 = key->u.tkip.iv32;
++ iv16 = key->u.tkip.iv16;
++
++ if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
++ sdata->local->ops->get_tkip_seq)
++ sdata->local->ops->get_tkip_seq(
++ local_to_hw(sdata->local),
++ key->conf.hw_key_idx,
++ &iv32, &iv16);
++
++ seq[0] = iv16 & 0xff;
++ seq[1] = (iv16 >> 8) & 0xff;
++ seq[2] = iv32 & 0xff;
++ seq[3] = (iv32 >> 8) & 0xff;
++ seq[4] = (iv32 >> 16) & 0xff;
++ seq[5] = (iv32 >> 24) & 0xff;
++ params.seq = seq;
++ params.seq_len = 6;
++ break;
++ case ALG_CCMP:
++ params.cipher = WLAN_CIPHER_SUITE_CCMP;
++ seq[0] = key->u.ccmp.tx_pn[5];
++ seq[1] = key->u.ccmp.tx_pn[4];
++ seq[2] = key->u.ccmp.tx_pn[3];
++ seq[3] = key->u.ccmp.tx_pn[2];
++ seq[4] = key->u.ccmp.tx_pn[1];
++ seq[5] = key->u.ccmp.tx_pn[0];
++ params.seq = seq;
++ params.seq_len = 6;
++ break;
++ case ALG_WEP:
++ if (key->conf.keylen == 5)
++ params.cipher = WLAN_CIPHER_SUITE_WEP40;
++ else
++ params.cipher = WLAN_CIPHER_SUITE_WEP104;
++ break;
++ }
++
++ params.key = key->conf.key;
++ params.key_len = key->conf.keylen;
++
++ callback(cookie, ¶ms);
++ err = 0;
++
++ out:
++ if (sta)
++ sta_info_put(sta);
++ return err;
++}
++
+ static int ieee80211_config_default_key(struct wiphy *wiphy,
+ struct net_device *dev,
+ u8 key_idx)
+@@ -198,5 +280,6 @@
+ .change_virtual_intf = ieee80211_change_iface,
+ .add_key = ieee80211_add_key,
+ .del_key = ieee80211_del_key,
++ .get_key = ieee80211_get_key,
+ .set_default_key = ieee80211_config_default_key,
+ };
+Index: mac80211/include/net/mac80211.h
+===================================================================
+--- mac80211.orig/include/net/mac80211.h 2007-11-11 15:46:41.377947807 +0100
++++ mac80211/include/net/mac80211.h 2007-11-11 15:47:08.183475366 +0100
+@@ -598,9 +598,6 @@
+ u8 key[0];
+ };
+
+-#define IEEE80211_SEQ_COUNTER_RX 0
+-#define IEEE80211_SEQ_COUNTER_TX 1
+-
+ /**
+ * enum set_key_cmd - key command
+ *
+@@ -947,9 +944,9 @@
+ *
+ * @get_stats: return low-level statistics
+ *
+- * @get_sequence_counter: For devices that have internal sequence counters this
+- * callback allows mac80211 to access the current value of a counter.
+- * This callback seems not well-defined, tell us if you need it.
++ * @get_tkip_seq: If your device implements TKIP encryption in hardware this
++ * callback should be provided to read the TKIP transmit IVs (both IV32
++ * and IV16) for the given key from hardware.
+ *
+ * @set_rts_threshold: Configuration of RTS threshold (if device needs it)
+ *
+@@ -1022,9 +1019,8 @@
+ int (*hw_scan)(struct ieee80211_hw *hw, u8 *ssid, size_t len);
+ int (*get_stats)(struct ieee80211_hw *hw,
+ struct ieee80211_low_level_stats *stats);
+- int (*get_sequence_counter)(struct ieee80211_hw *hw,
+- u8* addr, u8 keyidx, u8 txrx,
+- u32* iv32, u16* iv16);
++ void (*get_tkip_seq)(struct ieee80211_hw *hw, u8 hw_key_idx,
++ u32 *iv32, u16 *iv16);
+ int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value);
+ int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value);
+ int (*set_retry_limit)(struct ieee80211_hw *hw,
--- /dev/null
+Subject: cfg80211/nl80211: add beacon settings
+
+This adds the necessary API to cfg80211/nl80211 to allow
+changing beaconing settings.
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+
+---
+ include/linux/nl80211.h | 24 ++++++++
+ include/net/cfg80211.h | 33 +++++++++++
+ net/wireless/nl80211.c | 133 ++++++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 190 insertions(+)
+
+--- everything.orig/include/net/cfg80211.h 2007-11-08 11:50:57.412840007 +0100
++++ everything/include/net/cfg80211.h 2007-11-08 16:50:38.421522842 +0100
+@@ -69,6 +69,26 @@ struct key_params {
+ u32 cipher;
+ };
+
++/**
++ * struct beacon_parameters - beacon parameters
++ *
++ * Used to configure the beacon for an interface.
++ *
++ * @head: head portion of beacon (before TIM IE)
++ * or %NULL if not changed
++ * @tail: tail portion of beacon (after TIM IE)
++ * or %NULL if not changed
++ * @interval: beacon interval or zero if not changed
++ * @dtim_period: DTIM period or zero if not changed
++ * @head_len: length of @head
++ * @tail_len: length of @tail
++ */
++struct beacon_parameters {
++ u8 *head, *tail;
++ int interval, dtim_period;
++ int head_len, tail_len;
++};
++
+ /* from net/wireless.h */
+ struct wiphy;
+
+@@ -103,6 +123,13 @@ struct wiphy;
+ * and @key_index
+ *
+ * @set_default_key: set the default key on an interface
++ *
++ * @add_beacon: Add a beacon with given parameters, @head, @interval
++ * and @dtim_period will be valid, @tail is optional.
++ * @set_beacon: Change the beacon parameters for an access point mode
++ * interface. This should reject the call when no beacon has been
++ * configured.
++ * @del_beacon: Remove beacon configuration and stop sending the beacon.
+ */
+ struct cfg80211_ops {
+ int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
+@@ -122,6 +149,12 @@ struct cfg80211_ops {
+ int (*set_default_key)(struct wiphy *wiphy,
+ struct net_device *netdev,
+ u8 key_index);
++
++ int (*add_beacon)(struct wiphy *wiphy, struct net_device *dev,
++ struct beacon_parameters *info);
++ int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev,
++ struct beacon_parameters *info);
++ int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev);
+ };
+
+ #endif /* __NET_CFG80211_H */
+--- everything.orig/include/linux/nl80211.h 2007-11-08 11:50:57.362839952 +0100
++++ everything/include/linux/nl80211.h 2007-11-08 16:56:32.431522732 +0100
+@@ -47,6 +47,15 @@
+ * @NL80211_CMD_DEL_KEY: delete a key identified by %NL80211_ATTR_KEY_IDX
+ * or %NL80211_ATTR_MAC.
+ *
++ * @NL80211_CMD_GET_BEACON: retrieve beacon information (returned in a
++ * %NL80222_CMD_NEW_BEACON message)
++ * @NL80211_CMD_SET_BEACON: set the beacon on an access point interface
++ * using the %NL80211_ATTR_BEACON_INTERVAL, %NL80211_ATTR_DTIM_PERIOD,
++ * %NL80211_BEACON_HEAD and %NL80211_BEACON_TAIL attributes.
++ * @NL80211_CMD_NEW_BEACON: add a new beacon to an access point interface,
++ * parameters are like for %NL80211_CMD_SET_BEACON.
++ * @NL80211_CMD_DEL_BEACON: remove the beacon, stop sending it
++ *
+ * @NL80211_CMD_MAX: highest used command number
+ * @__NL80211_CMD_AFTER_LAST: internal use
+ */
+@@ -69,6 +78,11 @@ enum nl80211_commands {
+ NL80211_CMD_NEW_KEY,
+ NL80211_CMD_DEL_KEY,
+
++ NL80211_CMD_GET_BEACON,
++ NL80211_CMD_SET_BEACON,
++ NL80211_CMD_NEW_BEACON,
++ NL80211_CMD_DEL_BEACON,
++
+ /* add commands here */
+
+ /* used to define NL80211_CMD_MAX below */
+@@ -101,6 +115,11 @@ enum nl80211_commands {
+ * @NL80211_ATTR_KEY_SEQ: transmit key sequence number (IV/PN) for TKIP and
+ * CCMP keys, each six bytes in little endian
+ *
++ * @NL80211_ATTR_BEACON_INTERVAL: beacon interval in TU
++ * @NL80211_ATTR_DTIM_PERIOD: DTIM period for beaconing
++ * @NL80211_ATTR_BEACON_HEAD: portion of the beacon before the TIM IE
++ * @NL80211_ATTR_BEACON_TAIL: portion of the beacon after the TIM IE
++ *
+ * @NL80211_ATTR_MAX: highest attribute number currently defined
+ * @__NL80211_ATTR_AFTER_LAST: internal use
+ */
+@@ -123,6 +142,11 @@ enum nl80211_attrs {
+ NL80211_ATTR_KEY_SEQ,
+ NL80211_ATTR_KEY_DEFAULT,
+
++ NL80211_ATTR_BEACON_INTERVAL,
++ NL80211_ATTR_DTIM_PERIOD,
++ NL80211_ATTR_BEACON_HEAD,
++ NL80211_ATTR_BEACON_TAIL,
++
+ /* add attributes here, update the policy in nl80211.c */
+
+ __NL80211_ATTR_AFTER_LAST,
+--- everything.orig/net/wireless/nl80211.c 2007-11-08 11:50:57.382836589 +0100
++++ everything/net/wireless/nl80211.c 2007-11-08 16:58:36.711524524 +0100
+@@ -69,6 +69,13 @@ static struct nla_policy nl80211_policy[
+ [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
+ [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
+ [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
++
++ [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
++ [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
++ [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
++ .len = IEEE80211_MAX_DATA_LEN },
++ [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
++ .len = IEEE80211_MAX_DATA_LEN },
+ };
+
+ /* message building helper */
+@@ -600,6 +607,114 @@ static int nl80211_del_key(struct sk_buf
+ return err;
+ }
+
++static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
++{
++ int (*call)(struct wiphy *wiphy, struct net_device *dev,
++ struct beacon_parameters *info);
++ struct cfg80211_registered_device *drv;
++ int err;
++ struct net_device *dev;
++ struct beacon_parameters params;
++ int haveinfo = 0;
++
++ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
++ if (err)
++ return err;
++
++ switch (info->genlhdr->cmd) {
++ case NL80211_CMD_NEW_BEACON:
++ /* these are required for NEW_BEACON */
++ if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
++ !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
++ !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
++ err = -EINVAL;
++ goto out;
++ }
++
++ call = drv->ops->add_beacon;
++ break;
++ case NL80211_CMD_SET_BEACON:
++ call = drv->ops->set_beacon;
++ break;
++ default:
++ WARN_ON(1);
++ err = -EOPNOTSUPP;
++ goto out;
++ }
++
++ if (!call) {
++ err = -EOPNOTSUPP;
++ goto out;
++ }
++
++ memset(¶ms, 0, sizeof(params));
++
++ if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
++ params.interval =
++ nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
++ haveinfo = 1;
++ }
++
++ if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
++ params.dtim_period =
++ nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
++ haveinfo = 1;
++ }
++
++ if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
++ params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
++ params.head_len =
++ nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
++ haveinfo = 1;
++ }
++
++ if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
++ params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
++ params.tail_len =
++ nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
++ haveinfo = 1;
++ }
++
++ if (!haveinfo) {
++ err = -EINVAL;
++ goto out;
++ }
++
++ rtnl_lock();
++ err = call(&drv->wiphy, dev, ¶ms);
++ rtnl_unlock();
++
++ out:
++ cfg80211_put_dev(drv);
++ dev_put(dev);
++ return err;
++}
++
++static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
++{
++ struct cfg80211_registered_device *drv;
++ int err;
++ struct net_device *dev;
++
++ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
++ if (err)
++ return err;
++
++ if (!drv->ops->del_beacon) {
++ err = -EOPNOTSUPP;
++ goto out;
++ }
++
++ rtnl_lock();
++ err = drv->ops->del_beacon(&drv->wiphy, dev);
++ rtnl_unlock();
++
++ out:
++ cfg80211_put_dev(drv);
++ dev_put(dev);
++ return err;
++}
++
+ static struct genl_ops nl80211_ops[] = {
+ {
+ .cmd = NL80211_CMD_GET_WIPHY,
+@@ -663,6 +778,24 @@ static struct genl_ops nl80211_ops[] = {
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
++ {
++ .cmd = NL80211_CMD_SET_BEACON,
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ .doit = nl80211_addset_beacon,
++ },
++ {
++ .cmd = NL80211_CMD_NEW_BEACON,
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ .doit = nl80211_addset_beacon,
++ },
++ {
++ .cmd = NL80211_CMD_DEL_BEACON,
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ .doit = nl80211_del_beacon,
++ },
+ };
+
+ /* multicast groups */
--- /dev/null
+Subject: mac80211: add beacon configuration via cfg80211
+
+This patch implements the cfg80211 hooks for configuring beaconing
+on an access point interface in mac80211. While doing so, it fixes
+a number of races that could badly crash the machine when the
+beacon is changed while being requested by the driver.
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+
+---
+The dtim_count field should possibly also be part of the beacon
+structure, but the possible race there doesn't really matter,
+worst thing is that one beacon will be sent with a wrong dtim
+count if (and only if) userspace changes the dtim period during
+operation.
+
+ net/mac80211/cfg.c | 156 +++++++++++++++++++++++++++++++++++++++++
+ net/mac80211/debugfs_netdev.c | 27 -------
+ net/mac80211/ieee80211_i.h | 14 ++-
+ net/mac80211/ieee80211_iface.c | 4 -
+ net/mac80211/tx.c | 63 ++++++++++------
+ 5 files changed, 204 insertions(+), 60 deletions(-)
+
+Index: mac80211/net/mac80211/cfg.c
+===================================================================
+--- mac80211.orig/net/mac80211/cfg.c 2007-11-11 15:17:12.837164411 +0100
++++ mac80211/net/mac80211/cfg.c 2007-11-11 15:18:36.853952256 +0100
+@@ -9,6 +9,7 @@
+ #include <linux/ieee80211.h>
+ #include <linux/nl80211.h>
+ #include <linux/rtnetlink.h>
++#include <linux/rcupdate.h>
+ #include <net/cfg80211.h>
+ #include "ieee80211_i.h"
+ #include "cfg.h"
+@@ -274,6 +275,158 @@
+ return 0;
+ }
+
++/*
++ * This handles both adding a beacon and setting new beacon info
++ */
++static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
++ struct beacon_parameters *params)
++{
++ struct beacon_data *new, *old;
++ int new_head_len, new_tail_len;
++ int size;
++ int err = -EINVAL;
++
++ old = sdata->u.ap.beacon;
++
++ /* head must not be zero-length */
++ if (params->head && !params->head_len)
++ return -EINVAL;
++
++ /*
++ * This is a kludge. beacon interval should really be part
++ * of the beacon information.
++ */
++ if (params->interval) {
++ sdata->local->hw.conf.beacon_int = params->interval;
++ if (ieee80211_hw_config(sdata->local))
++ return -EINVAL;
++ /*
++ * We updated some parameter so if below bails out
++ * it's not an error.
++ */
++ err = 0;
++ }
++
++ /* Need to have a beacon head if we don't have one yet */
++ if (!params->head && !old)
++ return err;
++
++ /* sorry, no way to start beaconing without dtim period */
++ if (!params->dtim_period && !old)
++ return err;
++
++ /* new or old head? */
++ if (params->head)
++ new_head_len = params->head_len;
++ else
++ new_head_len = old->head_len;
++
++ /* new or old tail? */
++ if (params->tail || !old)
++ /* params->tail_len will be zero for !params->tail */
++ new_tail_len = params->tail_len;
++ else
++ new_tail_len = old->tail_len;
++
++ size = sizeof(*new) + new_head_len + new_tail_len;
++
++ new = kzalloc(size, GFP_KERNEL);
++ if (!new)
++ return -ENOMEM;
++
++ /* start filling the new info now */
++
++ /* new or old dtim period? */
++ if (params->dtim_period)
++ new->dtim_period = params->dtim_period;
++ else
++ new->dtim_period = old->dtim_period;
++
++ /*
++ * pointers go into the block we allocated,
++ * memory is | beacon_data | head | tail |
++ */
++ new->head = ((u8 *) new) + sizeof(*new);
++ new->tail = new->head + new_head_len;
++ new->head_len = new_head_len;
++ new->tail_len = new_tail_len;
++
++ /* copy in head */
++ if (params->head)
++ memcpy(new->head, params->head, new_head_len);
++ else
++ memcpy(new->head, old->head, new_head_len);
++
++ /* copy in optional tail */
++ if (params->tail)
++ memcpy(new->tail, params->tail, new_tail_len);
++ else
++ if (old)
++ memcpy(new->tail, old->tail, new_tail_len);
++
++ rcu_assign_pointer(sdata->u.ap.beacon, new);
++
++ synchronize_rcu();
++
++ kfree(old);
++
++ return ieee80211_if_config_beacon(sdata->dev);
++}
++
++static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
++ struct beacon_parameters *params)
++{
++ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++ struct beacon_data *old;
++
++ if (sdata->type != IEEE80211_IF_TYPE_AP)
++ return -EINVAL;
++
++ old = sdata->u.ap.beacon;
++
++ if (old)
++ return -EALREADY;
++
++ return ieee80211_config_beacon(sdata, params);
++}
++
++static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
++ struct beacon_parameters *params)
++{
++ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++ struct beacon_data *old;
++
++ if (sdata->type != IEEE80211_IF_TYPE_AP)
++ return -EINVAL;
++
++ old = sdata->u.ap.beacon;
++
++ if (!old)
++ return -ENOENT;
++
++ return ieee80211_config_beacon(sdata, params);
++}
++
++static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
++{
++ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++ struct beacon_data *old;
++
++ if (sdata->type != IEEE80211_IF_TYPE_AP)
++ return -EINVAL;
++
++ old = sdata->u.ap.beacon;
++
++ if (!old)
++ return -ENOENT;
++
++ rcu_assign_pointer(sdata->u.ap.beacon, NULL);
++ synchronize_rcu();
++ kfree(old);
++
++ return ieee80211_if_config_beacon(dev);
++}
++
+ struct cfg80211_ops mac80211_config_ops = {
+ .add_virtual_intf = ieee80211_add_iface,
+ .del_virtual_intf = ieee80211_del_iface,
+@@ -282,4 +435,7 @@
+ .del_key = ieee80211_del_key,
+ .get_key = ieee80211_get_key,
+ .set_default_key = ieee80211_config_default_key,
++ .add_beacon = ieee80211_add_beacon,
++ .set_beacon = ieee80211_set_beacon,
++ .del_beacon = ieee80211_del_beacon,
+ };
+Index: mac80211/net/mac80211/debugfs_netdev.c
+===================================================================
+--- mac80211.orig/net/mac80211/debugfs_netdev.c 2007-10-14 00:42:30.054156000 +0200
++++ mac80211/net/mac80211/debugfs_netdev.c 2007-11-11 15:18:11.852527505 +0100
+@@ -124,7 +124,6 @@
+
+ /* AP attributes */
+ IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
+-IEEE80211_IF_FILE(dtim_period, u.ap.dtim_period, DEC);
+ IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
+ IEEE80211_IF_FILE(num_beacons, u.ap.num_beacons, DEC);
+ IEEE80211_IF_FILE(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC);
+@@ -138,26 +137,6 @@
+ }
+ __IEEE80211_IF_FILE(num_buffered_multicast);
+
+-static ssize_t ieee80211_if_fmt_beacon_head_len(
+- const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
+-{
+- if (sdata->u.ap.beacon_head)
+- return scnprintf(buf, buflen, "%d\n",
+- sdata->u.ap.beacon_head_len);
+- return scnprintf(buf, buflen, "\n");
+-}
+-__IEEE80211_IF_FILE(beacon_head_len);
+-
+-static ssize_t ieee80211_if_fmt_beacon_tail_len(
+- const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
+-{
+- if (sdata->u.ap.beacon_tail)
+- return scnprintf(buf, buflen, "%d\n",
+- sdata->u.ap.beacon_tail_len);
+- return scnprintf(buf, buflen, "\n");
+-}
+-__IEEE80211_IF_FILE(beacon_tail_len);
+-
+ /* WDS attributes */
+ IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
+
+@@ -194,14 +173,11 @@
+ DEBUGFS_ADD(eapol, ap);
+ DEBUGFS_ADD(ieee8021_x, ap);
+ DEBUGFS_ADD(num_sta_ps, ap);
+- DEBUGFS_ADD(dtim_period, ap);
+ DEBUGFS_ADD(dtim_count, ap);
+ DEBUGFS_ADD(num_beacons, ap);
+ DEBUGFS_ADD(force_unicast_rateidx, ap);
+ DEBUGFS_ADD(max_ratectrl_rateidx, ap);
+ DEBUGFS_ADD(num_buffered_multicast, ap);
+- DEBUGFS_ADD(beacon_head_len, ap);
+- DEBUGFS_ADD(beacon_tail_len, ap);
+ }
+
+ static void add_wds_files(struct ieee80211_sub_if_data *sdata)
+@@ -287,14 +263,11 @@
+ DEBUGFS_DEL(eapol, ap);
+ DEBUGFS_DEL(ieee8021_x, ap);
+ DEBUGFS_DEL(num_sta_ps, ap);
+- DEBUGFS_DEL(dtim_period, ap);
+ DEBUGFS_DEL(dtim_count, ap);
+ DEBUGFS_DEL(num_beacons, ap);
+ DEBUGFS_DEL(force_unicast_rateidx, ap);
+ DEBUGFS_DEL(max_ratectrl_rateidx, ap);
+ DEBUGFS_DEL(num_buffered_multicast, ap);
+- DEBUGFS_DEL(beacon_head_len, ap);
+- DEBUGFS_DEL(beacon_tail_len, ap);
+ }
+
+ static void del_wds_files(struct ieee80211_sub_if_data *sdata)
+Index: mac80211/net/mac80211/ieee80211_i.h
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211_i.h 2007-11-11 15:15:53.792659922 +0100
++++ mac80211/net/mac80211/ieee80211_i.h 2007-11-11 15:18:11.864528190 +0100
+@@ -190,9 +190,14 @@
+ typedef ieee80211_txrx_result (*ieee80211_rx_handler)
+ (struct ieee80211_txrx_data *rx);
+
++struct beacon_data {
++ u8 *head, *tail;
++ int head_len, tail_len;
++ int dtim_period;
++};
++
+ struct ieee80211_if_ap {
+- u8 *beacon_head, *beacon_tail;
+- int beacon_head_len, beacon_tail_len;
++ struct beacon_data *beacon;
+
+ struct list_head vlans;
+
+@@ -205,7 +210,7 @@
+ u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
+ atomic_t num_sta_ps; /* number of stations in PS mode */
+ struct sk_buff_head ps_bc_buf;
+- int dtim_period, dtim_count;
++ int dtim_count;
+ int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
+ int max_ratectrl_rateidx; /* max TX rateidx for rate control */
+ int num_beacons; /* number of TXed beacon frames for this BSS */
+@@ -361,14 +366,11 @@
+ struct dentry *eapol;
+ struct dentry *ieee8021_x;
+ struct dentry *num_sta_ps;
+- struct dentry *dtim_period;
+ struct dentry *dtim_count;
+ struct dentry *num_beacons;
+ struct dentry *force_unicast_rateidx;
+ struct dentry *max_ratectrl_rateidx;
+ struct dentry *num_buffered_multicast;
+- struct dentry *beacon_head_len;
+- struct dentry *beacon_tail_len;
+ } ap;
+ struct {
+ struct dentry *channel_use;
+Index: mac80211/net/mac80211/ieee80211_iface.c
+===================================================================
+--- mac80211.orig/net/mac80211/ieee80211_iface.c 2007-11-11 15:15:53.796660158 +0100
++++ mac80211/net/mac80211/ieee80211_iface.c 2007-11-11 15:18:11.868528415 +0100
+@@ -187,7 +187,6 @@
+ sdata->u.vlan.ap = NULL;
+ break;
+ case IEEE80211_IF_TYPE_AP:
+- sdata->u.ap.dtim_period = 2;
+ sdata->u.ap.force_unicast_rateidx = -1;
+ sdata->u.ap.max_ratectrl_rateidx = -1;
+ skb_queue_head_init(&sdata->u.ap.ps_bc_buf);
+@@ -271,8 +270,7 @@
+ }
+ }
+
+- kfree(sdata->u.ap.beacon_head);
+- kfree(sdata->u.ap.beacon_tail);
++ kfree(sdata->u.ap.beacon);
+
+ while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
+ local->total_ps_buffered--;
+Index: mac80211/net/mac80211/tx.c
+===================================================================
+--- mac80211.orig/net/mac80211/tx.c 2007-11-11 15:15:53.804660611 +0100
++++ mac80211/net/mac80211/tx.c 2007-11-11 15:18:11.868528415 +0100
+@@ -1656,7 +1656,8 @@
+
+ static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
+ struct ieee80211_if_ap *bss,
+- struct sk_buff *skb)
++ struct sk_buff *skb,
++ struct beacon_data *beacon)
+ {
+ u8 *pos, *tim;
+ int aid0 = 0;
+@@ -1672,7 +1673,7 @@
+ IEEE80211_MAX_AID+1);
+
+ if (bss->dtim_count == 0)
+- bss->dtim_count = bss->dtim_period - 1;
++ bss->dtim_count = beacon->dtim_period - 1;
+ else
+ bss->dtim_count--;
+
+@@ -1680,7 +1681,7 @@
+ *pos++ = WLAN_EID_TIM;
+ *pos++ = 4;
+ *pos++ = bss->dtim_count;
+- *pos++ = bss->dtim_period;
++ *pos++ = beacon->dtim_period;
+
+ if (bss->dtim_count == 0 && !skb_queue_empty(&bss->ps_bc_buf))
+ aid0 = 1;
+@@ -1728,8 +1729,9 @@
+ struct ieee80211_if_ap *ap = NULL;
+ struct ieee80211_rate *rate;
+ struct rate_control_extra extra;
+- u8 *b_head, *b_tail;
+- int bh_len, bt_len;
++ struct beacon_data *beacon;
++
++ rcu_read_lock();
+
+ bdev = dev_get_by_index(if_id);
+ if (bdev) {
+@@ -1738,37 +1740,35 @@
+ dev_put(bdev);
+ }
+
+- if (!ap || sdata->type != IEEE80211_IF_TYPE_AP ||
+- !ap->beacon_head) {
++ beacon = rcu_dereference(ap->beacon);
++
++ if (!ap || sdata->type != IEEE80211_IF_TYPE_AP || !beacon) {
+ #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ if (net_ratelimit())
+ printk(KERN_DEBUG "no beacon data avail for idx=%d "
+ "(%s)\n", if_id, bdev ? bdev->name : "N/A");
+ #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+- return NULL;
++ skb = NULL;
++ goto out;
+ }
+
+- /* Assume we are generating the normal beacon locally */
+- b_head = ap->beacon_head;
+- b_tail = ap->beacon_tail;
+- bh_len = ap->beacon_head_len;
+- bt_len = ap->beacon_tail_len;
+-
+- skb = dev_alloc_skb(local->tx_headroom +
+- bh_len + bt_len + 256 /* maximum TIM len */);
++ /* headroom, head length, tail length and maximum TIM length */
++ skb = dev_alloc_skb(local->tx_headroom + beacon->head_len +
++ beacon->tail_len + 256);
+ if (!skb)
+- return NULL;
++ goto out;
+
+ skb_reserve(skb, local->tx_headroom);
+- memcpy(skb_put(skb, bh_len), b_head, bh_len);
++ memcpy(skb_put(skb, beacon->head_len), beacon->head,
++ beacon->head_len);
+
+ ieee80211_include_sequence(sdata, (struct ieee80211_hdr *)skb->data);
+
+- ieee80211_beacon_add_tim(local, ap, skb);
++ ieee80211_beacon_add_tim(local, ap, skb, beacon);
+
+- if (b_tail) {
+- memcpy(skb_put(skb, bt_len), b_tail, bt_len);
+- }
++ if (beacon->tail)
++ memcpy(skb_put(skb, beacon->tail_len), beacon->tail,
++ beacon->tail_len);
+
+ if (control) {
+ memset(&extra, 0, sizeof(extra));
+@@ -1781,7 +1781,8 @@
+ "found\n", wiphy_name(local->hw.wiphy));
+ }
+ dev_kfree_skb(skb);
+- return NULL;
++ skb = NULL;
++ goto out;
+ }
+
+ control->tx_rate =
+@@ -1796,6 +1797,9 @@
+ }
+
+ ap->num_beacons++;
++
++ out:
++ rcu_read_unlock();
+ return skb;
+ }
+ EXPORT_SYMBOL(ieee80211_beacon_get);
+@@ -1844,6 +1848,7 @@
+ struct net_device *bdev;
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_if_ap *bss = NULL;
++ struct beacon_data *beacon;
+
+ bdev = dev_get_by_index(if_id);
+ if (bdev) {
+@@ -1851,9 +1856,19 @@
+ bss = &sdata->u.ap;
+ dev_put(bdev);
+ }
+- if (!bss || sdata->type != IEEE80211_IF_TYPE_AP || !bss->beacon_head)
++
++ if (!bss)
+ return NULL;
+
++ rcu_read_lock();
++ beacon = rcu_dereference(bss->beacon);
++
++ if (sdata->type != IEEE80211_IF_TYPE_AP || !beacon || !beacon->head) {
++ rcu_read_unlock();
++ return NULL;
++ }
++ rcu_read_unlock();
++
+ if (bss->dtim_count != 0)
+ return NULL; /* send buffered bc/mc only after DTIM beacon */
+ memset(control, 0, sizeof(*control));
--- /dev/null
+Subject: cfg80211/nl80211: station handling
+
+This patch adds station handling to cfg80211/nl80211.
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+
+---
+ include/linux/nl80211.h | 68 +++++++++++++
+ include/net/cfg80211.h | 54 ++++++++++
+ net/wireless/nl80211.c | 236 ++++++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 358 insertions(+)
+
+--- everything.orig/include/linux/nl80211.h 2007-11-08 16:56:32.431522732 +0100
++++ everything/include/linux/nl80211.h 2007-11-08 17:15:15.961529840 +0100
+@@ -7,6 +7,18 @@
+ */
+
+ /**
++ * DOC: Station handling
++ *
++ * Stations are added per interface, but a special case exists with VLAN
++ * interfaces. When a station is bound to an AP interface, it may be moved
++ * into a VLAN identified by a VLAN interface index (%NL80211_ATTR_STA_VLAN).
++ * The station is still assumed to belong to the AP interface it was added
++ * to.
++ *
++ * TODO: need more info?
++ */
++
++/**
+ * enum nl80211_commands - supported nl80211 commands
+ *
+ * @NL80211_CMD_UNSPEC: unspecified command to catch errors
+@@ -56,6 +68,16 @@
+ * parameters are like for %NL80211_CMD_SET_BEACON.
+ * @NL80211_CMD_DEL_BEACON: remove the beacon, stop sending it
+ *
++ * @NL80211_CMD_GET_STATION: Get station attributes for station identified by
++ * %NL80211_ATTR_MAC on the interface identified by %NL80211_ATTR_IFINDEX.
++ * @NL80211_CMD_SET_STATION: Set station attributes for station identified by
++ * %NL80211_ATTR_MAC on the interface identified by %NL80211_ATTR_IFINDEX.
++ * @NL80211_CMD_NEW_STATION: Add a station with given attributes to the
++ * the interface identified by %NL80211_ATTR_IFINDEX.
++ * @NL80211_CMD_DEL_STATION: Remove a station identified by %NL80211_ATTR_MAC
++ * or, if no MAC address given, all stations, on the interface identified
++ * by %NL80211_ATTR_IFINDEX.
++ *
+ * @NL80211_CMD_MAX: highest used command number
+ * @__NL80211_CMD_AFTER_LAST: internal use
+ */
+@@ -83,6 +105,11 @@ enum nl80211_commands {
+ NL80211_CMD_NEW_BEACON,
+ NL80211_CMD_DEL_BEACON,
+
++ NL80211_CMD_GET_STATION,
++ NL80211_CMD_SET_STATION,
++ NL80211_CMD_NEW_STATION,
++ NL80211_CMD_DEL_STATION,
++
+ /* add commands here */
+
+ /* used to define NL80211_CMD_MAX below */
+@@ -120,6 +147,17 @@ enum nl80211_commands {
+ * @NL80211_ATTR_BEACON_HEAD: portion of the beacon before the TIM IE
+ * @NL80211_ATTR_BEACON_TAIL: portion of the beacon after the TIM IE
+ *
++ * @NL80211_ATTR_STA_AID: Association ID for the station (u16)
++ * @NL80211_ATTR_STA_FLAGS: flags, nested element with NLA_FLAG attributes of
++ * &enum nl80211_sta_flags.
++ * @NL80211_ATTR_STA_LISTEN_INTERVAL: listen interval as defined by
++ * IEEE 802.11 7.3.1.6 (u16).
++ * @NL80211_ATTR_STA_SUPPORTED_RATES: supported rates, array of supported
++ * rates as defined by IEEE 802.11 7.3.2.2 but without the length
++ * restriction (at most %NL80211_MAX_SUPP_RATES).
++ * @NL80211_ATTR_STA_VLAN: interface index of VLAN interface to move station
++ * to, or the AP interface the station was originally added to to.
++ *
+ * @NL80211_ATTR_MAX: highest attribute number currently defined
+ * @__NL80211_ATTR_AFTER_LAST: internal use
+ */
+@@ -147,12 +185,20 @@ enum nl80211_attrs {
+ NL80211_ATTR_BEACON_HEAD,
+ NL80211_ATTR_BEACON_TAIL,
+
++ NL80211_ATTR_STA_AID,
++ NL80211_ATTR_STA_FLAGS,
++ NL80211_ATTR_STA_LISTEN_INTERVAL,
++ NL80211_ATTR_STA_SUPPORTED_RATES,
++ NL80211_ATTR_STA_VLAN,
++
+ /* add attributes here, update the policy in nl80211.c */
+
+ __NL80211_ATTR_AFTER_LAST,
+ NL80211_ATTR_MAX = __NL80211_ATTR_AFTER_LAST - 1
+ };
+
++#define NL80211_MAX_SUPP_RATES 32
++
+ /**
+ * enum nl80211_iftype - (virtual) interface types
+ *
+@@ -184,4 +230,26 @@ enum nl80211_iftype {
+ NL80211_IFTYPE_MAX = __NL80211_IFTYPE_AFTER_LAST - 1
+ };
+
++/**
++ * enum nl80211_sta_flags - station flags
++ *
++ * Station flags. When a station is added to an AP interface, it is
++ * assumed to be already associated (and hence authenticated.)
++ *
++ * @NL80211_STA_FLAG_AUTHORIZED: station is authorized (802.1X)
++ * @NL80211_STA_FLAG_SHORT_PREAMBLE: station is capable of receiving frames
++ * with short barker preamble
++ * @NL80211_STA_FLAG_WME: station is WME/QoS capable
++ */
++enum nl80211_sta_flags {
++ __NL80211_STA_FLAG_INVALID,
++ NL80211_STA_FLAG_AUTHORIZED,
++ NL80211_STA_FLAG_SHORT_PREAMBLE,
++ NL80211_STA_FLAG_WME,
++
++ /* keep last */
++ __NL80211_STA_FLAG_AFTER_LAST,
++ NL80211_STA_FLAG_MAX = __NL80211_STA_FLAG_AFTER_LAST - 1
++};
++
+ #endif /* __LINUX_NL80211_H */
+--- everything.orig/include/net/cfg80211.h 2007-11-08 16:50:38.421522842 +0100
++++ everything/include/net/cfg80211.h 2007-11-08 17:15:15.971532444 +0100
+@@ -89,6 +89,47 @@ struct beacon_parameters {
+ int head_len, tail_len;
+ };
+
++/**
++ * enum station_flags - station flags
++ *
++ * Station capability flags. Note that these must be the bits
++ * according to the nl80211 flags.
++ *
++ * @STATION_FLAG_CHANGED: station flags were changed
++ * @STATION_FLAG_AUTHORIZED: station is authorized to send frames (802.1X)
++ * @STATION_FLAG_SHORT_PREAMBLE: station is capable of receiving frames
++ * with short preambles
++ * @STATION_FLAG_WME: station is WME/QoS capable
++ */
++enum station_flags {
++ STATION_FLAG_CHANGED = 1<<0,
++ STATION_FLAG_AUTHORIZED = 1<<NL80211_STA_FLAG_AUTHORIZED,
++ STATION_FLAG_SHORT_PREAMBLE = 1<<NL80211_STA_FLAG_SHORT_PREAMBLE,
++ STATION_FLAG_WME = 1<<NL80211_STA_FLAG_WME,
++};
++
++/**
++ * struct station_parameters - station parameters
++ *
++ * Used to change and create a new station.
++ *
++ * @vlan: vlan interface station should belong to
++ * @supported_rates: supported rates in IEEE 802.11 format
++ * (or NULL for no change)
++ * @supported_rates_len: number of supported rates
++ * @station_flags: station flags (see &enum station_flags)
++ * @listen_interval: listen interval or -1 for no change
++ * @aid: AID or zero for no change
++ */
++struct station_parameters {
++ u8 *supported_rates;
++ struct net_device *vlan;
++ u32 station_flags;
++ int listen_interval;
++ u16 aid;
++ u8 supported_rates_len;
++};
++
+ /* from net/wireless.h */
+ struct wiphy;
+
+@@ -130,6 +171,12 @@ struct wiphy;
+ * interface. This should reject the call when no beacon has been
+ * configured.
+ * @del_beacon: Remove beacon configuration and stop sending the beacon.
++ *
++ * @add_station: Add a new station.
++ *
++ * @del_station: Remove a station; @mac may be NULL to remove all stations.
++ *
++ * @change_station: Modify a given station.
+ */
+ struct cfg80211_ops {
+ int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
+@@ -155,6 +202,13 @@ struct cfg80211_ops {
+ int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev,
+ struct beacon_parameters *info);
+ int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev);
++
++ int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
++ u8 *mac, struct station_parameters *params);
++ int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
++ u8 *mac);
++ int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
++ u8 *mac, struct station_parameters *params);
+ };
+
+ #endif /* __NET_CFG80211_H */
+--- everything.orig/net/wireless/nl80211.c 2007-11-08 16:58:36.711524524 +0100
++++ everything/net/wireless/nl80211.c 2007-11-08 17:15:15.981533909 +0100
+@@ -76,6 +76,12 @@ static struct nla_policy nl80211_policy[
+ .len = IEEE80211_MAX_DATA_LEN },
+ [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
+ .len = IEEE80211_MAX_DATA_LEN },
++ [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
++ [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
++ [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
++ [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
++ .len = NL80211_MAX_SUPP_RATES },
++ [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
+ };
+
+ /* message building helper */
+@@ -715,6 +721,211 @@ static int nl80211_del_beacon(struct sk_
+ return err;
+ }
+
++static
++struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] __read_mostly = {
++ [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
++ [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
++ [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
++};
++
++static int parse_station_flags(struct nlattr *nla, u32 *staflags)
++{
++ struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
++ int flag;
++
++ *staflags = 0;
++
++ if (!nla)
++ return 0;
++
++ if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
++ nla, sta_flags_policy))
++ return -EINVAL;
++
++ *staflags = STATION_FLAG_CHANGED;
++
++ for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
++ if (flags[flag])
++ *staflags |= (1<<flag);
++
++ return 0;
++}
++
++static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
++{
++ return -EOPNOTSUPP;
++}
++
++/*
++ * Get vlan interface making sure it is on the right wiphy.
++ */
++static int get_vlan(struct nlattr *vlanattr,
++ struct cfg80211_registered_device *rdev,
++ struct net_device **vlan)
++{
++ *vlan = NULL;
++
++ if (vlanattr) {
++ *vlan = dev_get_by_index(nla_get_u32(vlanattr));
++ if (!*vlan)
++ return -ENODEV;
++ if (!(*vlan)->ieee80211_ptr)
++ return -EINVAL;
++ if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
++ return -EINVAL;
++ }
++ return 0;
++}
++
++static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
++{
++ struct cfg80211_registered_device *drv;
++ int err;
++ struct net_device *dev;
++ struct station_parameters params;
++ u8 *mac_addr = NULL;
++
++ memset(¶ms, 0, sizeof(params));
++
++ params.listen_interval = -1;
++
++ if (info->attrs[NL80211_ATTR_STA_AID])
++ return -EINVAL;
++
++ if (!info->attrs[NL80211_ATTR_MAC])
++ return -EINVAL;
++
++ mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
++
++ if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
++ params.supported_rates =
++ nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
++ params.supported_rates_len =
++ nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
++ }
++
++ if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
++ params.listen_interval =
++ nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
++
++ if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
++ ¶ms.station_flags))
++ return -EINVAL;
++
++ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
++ if (err)
++ return err;
++
++ err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
++ if (err)
++ goto out;
++
++ if (!drv->ops->change_station) {
++ err = -EOPNOTSUPP;
++ goto out;
++ }
++
++ rtnl_lock();
++ err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms);
++ rtnl_unlock();
++
++ out:
++ if (params.vlan)
++ dev_put(params.vlan);
++ cfg80211_put_dev(drv);
++ dev_put(dev);
++ return err;
++}
++
++static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
++{
++ struct cfg80211_registered_device *drv;
++ int err;
++ struct net_device *dev;
++ struct station_parameters params;
++ u8 *mac_addr = NULL;
++
++ memset(¶ms, 0, sizeof(params));
++
++ if (!info->attrs[NL80211_ATTR_MAC])
++ return -EINVAL;
++
++ if (!info->attrs[NL80211_ATTR_STA_AID])
++ return -EINVAL;
++
++ if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
++ return -EINVAL;
++
++ if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
++ return -EINVAL;
++
++ mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
++ params.supported_rates =
++ nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
++ params.supported_rates_len =
++ nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
++ params.listen_interval =
++ nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
++ params.listen_interval = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
++
++ if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
++ ¶ms.station_flags))
++ return -EINVAL;
++
++ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
++ if (err)
++ return err;
++
++ err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
++ if (err)
++ goto out;
++
++ if (!drv->ops->add_station) {
++ err = -EOPNOTSUPP;
++ goto out;
++ }
++
++ rtnl_lock();
++ err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms);
++ rtnl_unlock();
++
++ out:
++ if (params.vlan)
++ dev_put(params.vlan);
++ cfg80211_put_dev(drv);
++ dev_put(dev);
++ return err;
++}
++
++static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
++{
++ struct cfg80211_registered_device *drv;
++ int err;
++ struct net_device *dev;
++ u8 *mac_addr = NULL;
++
++ if (info->attrs[NL80211_ATTR_MAC])
++ mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
++
++ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
++ if (err)
++ return err;
++
++ if (!drv->ops->del_station) {
++ err = -EOPNOTSUPP;
++ goto out;
++ }
++
++ rtnl_lock();
++ err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
++ rtnl_unlock();
++
++ out:
++ cfg80211_put_dev(drv);
++ dev_put(dev);
++ return err;
++}
++
+ static struct genl_ops nl80211_ops[] = {
+ {
+ .cmd = NL80211_CMD_GET_WIPHY,
+@@ -796,6 +1007,31 @@ static struct genl_ops nl80211_ops[] = {
+ .flags = GENL_ADMIN_PERM,
+ .doit = nl80211_del_beacon,
+ },
++ {
++ .cmd = NL80211_CMD_GET_STATION,
++ .doit = nl80211_get_station,
++ /* TODO: implement dumpit */
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ },
++ {
++ .cmd = NL80211_CMD_SET_STATION,
++ .doit = nl80211_set_station,
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ },
++ {
++ .cmd = NL80211_CMD_NEW_STATION,
++ .doit = nl80211_new_station,
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ },
++ {
++ .cmd = NL80211_CMD_DEL_STATION,
++ .doit = nl80211_del_station,
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ },
+ };
+
+ /* multicast groups */
--- /dev/null
+Subject: mac80211: implement cfg80211's station handling
+
+This implements station handling from userspace via cfg80211
+in mac80211.
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+
+---
+ net/mac80211/cfg.c | 192 +++++++++++++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 192 insertions(+)
+
+--- everything.orig/net/mac80211/cfg.c 2007-11-08 17:11:52.351521702 +0100
++++ everything/net/mac80211/cfg.c 2007-11-08 17:15:51.801523493 +0100
+@@ -14,6 +14,7 @@
+ #include <net/cfg80211.h>
+ #include "ieee80211_i.h"
+ #include "cfg.h"
++#include "ieee80211_rate.h"
+
+ static enum ieee80211_if_types
+ nl80211_type_to_mac80211_type(enum nl80211_iftype type)
+@@ -428,6 +429,194 @@ static int ieee80211_del_beacon(struct w
+ return ieee80211_if_config_beacon(dev);
+ }
+
++/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
++struct iapp_layer2_update {
++ u8 da[ETH_ALEN]; /* broadcast */
++ u8 sa[ETH_ALEN]; /* STA addr */
++ __be16 len; /* 6 */
++ u8 dsap; /* 0 */
++ u8 ssap; /* 0 */
++ u8 control;
++ u8 xid_info[3];
++} __attribute__ ((packed));
++
++static void ieee80211_send_layer2_update(struct sta_info *sta)
++{
++ struct iapp_layer2_update *msg;
++ struct sk_buff *skb;
++
++ /* Send Level 2 Update Frame to update forwarding tables in layer 2
++ * bridge devices */
++
++ skb = dev_alloc_skb(sizeof(*msg));
++ if (!skb)
++ return;
++ msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
++
++ /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
++ * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
++
++ memset(msg->da, 0xff, ETH_ALEN);
++ memcpy(msg->sa, sta->addr, ETH_ALEN);
++ msg->len = htons(6);
++ msg->dsap = 0;
++ msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
++ msg->control = 0xaf; /* XID response lsb.1111F101.
++ * F=0 (no poll command; unsolicited frame) */
++ msg->xid_info[0] = 0x81; /* XID format identifier */
++ msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
++ msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
++
++ skb->dev = sta->dev;
++ skb->protocol = eth_type_trans(skb, sta->dev);
++ memset(skb->cb, 0, sizeof(skb->cb));
++ netif_rx(skb);
++}
++
++static void sta_apply_parameters(struct ieee80211_local *local,
++ struct sta_info *sta,
++ struct station_parameters *params)
++{
++ u32 rates;
++ int i, j;
++ struct ieee80211_hw_mode *mode;
++
++ if (params->station_flags & STATION_FLAG_CHANGED) {
++ sta->flags &= ~WLAN_STA_AUTHORIZED;
++ if (params->station_flags & STATION_FLAG_AUTHORIZED)
++ sta->flags |= WLAN_STA_AUTHORIZED;
++
++ sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
++ if (params->station_flags & STATION_FLAG_SHORT_PREAMBLE)
++ sta->flags |= WLAN_STA_SHORT_PREAMBLE;
++
++ sta->flags &= ~WLAN_STA_WME;
++ if (params->station_flags & STATION_FLAG_WME)
++ sta->flags |= WLAN_STA_WME;
++ }
++
++ if (params->aid) {
++ sta->aid = params->aid;
++ if (sta->aid > IEEE80211_MAX_AID)
++ sta->aid = 0; /* XXX: should this be an error? */
++ }
++
++ if (params->listen_interval >= 0)
++ sta->listen_interval = params->listen_interval;
++
++ if (params->supported_rates) {
++ rates = 0;
++ mode = local->oper_hw_mode;
++ for (i = 0; i < params->supported_rates_len; i++) {
++ int rate = (params->supported_rates[i] & 0x7f) * 5;
++ for (j = 0; j < mode->num_rates; j++) {
++ if (mode->rates[j].rate == rate)
++ rates |= BIT(j);
++ }
++ }
++ sta->supp_rates = rates;
++ }
++}
++
++static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
++ u8 *mac, struct station_parameters *params)
++{
++ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
++ struct sta_info *sta;
++ struct ieee80211_sub_if_data *sdata;
++
++ /* Prevent a race with changing the rate control algorithm */
++ if (!netif_running(dev))
++ return -ENETDOWN;
++
++ /* XXX: get sta belonging to dev */
++ sta = sta_info_get(local, mac);
++ if (sta) {
++ sta_info_put(sta);
++ return -EEXIST;
++ }
++
++ if (params->vlan) {
++ sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
++
++ if (sdata->type != IEEE80211_IF_TYPE_VLAN ||
++ sdata->type != IEEE80211_IF_TYPE_AP)
++ return -EINVAL;
++ } else
++ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
++
++ sta = sta_info_add(local, dev, mac, GFP_KERNEL);
++ if (!sta)
++ return -ENOMEM;
++
++ sta->dev = sdata->dev;
++ if (sdata->type == IEEE80211_IF_TYPE_VLAN ||
++ sdata->type == IEEE80211_IF_TYPE_AP)
++ ieee80211_send_layer2_update(sta);
++
++ sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
++
++ sta_apply_parameters(local, sta, params);
++
++ rate_control_rate_init(sta, local);
++
++ sta_info_put(sta);
++
++ return 0;
++}
++
++static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
++ u8 *mac)
++{
++ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
++ struct sta_info *sta;
++
++ if (mac) {
++ /* XXX: get sta belonging to dev */
++ sta = sta_info_get(local, mac);
++ if (!sta)
++ return -ENOENT;
++
++ sta_info_free(sta);
++ sta_info_put(sta);
++ } else
++ sta_info_flush(local, dev);
++
++ return 0;
++}
++
++static int ieee80211_change_station(struct wiphy *wiphy,
++ struct net_device *dev,
++ u8 *mac,
++ struct station_parameters *params)
++{
++ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
++ struct sta_info *sta;
++ struct ieee80211_sub_if_data *vlansdata;
++
++ /* XXX: get sta belonging to dev */
++ sta = sta_info_get(local, mac);
++ if (!sta)
++ return -ENOENT;
++
++ if (params->vlan && params->vlan != sta->dev) {
++ vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
++
++ if (vlansdata->type != IEEE80211_IF_TYPE_VLAN ||
++ vlansdata->type != IEEE80211_IF_TYPE_AP)
++ return -EINVAL;
++
++ sta->dev = params->vlan;
++ ieee80211_send_layer2_update(sta);
++ }
++
++ sta_apply_parameters(local, sta, params);
++
++ sta_info_put(sta);
++
++ return 0;
++}
++
+ struct cfg80211_ops mac80211_config_ops = {
+ .add_virtual_intf = ieee80211_add_iface,
+ .del_virtual_intf = ieee80211_del_iface,
+@@ -439,4 +628,7 @@ struct cfg80211_ops mac80211_config_ops
+ .add_beacon = ieee80211_add_beacon,
+ .set_beacon = ieee80211_set_beacon,
+ .del_beacon = ieee80211_del_beacon,
++ .add_station = ieee80211_add_station,
++ .del_station = ieee80211_del_station,
++ .change_station = ieee80211_change_station,
+ };
--- /dev/null
+Subject: cfg80211/nl80211: implement station attribute retrieval
+
+After a station is added to the kernel's structures, userspace
+has to be able to retrieve statistics about that station, especially
+whether the station was idle and how much bytes were transferred
+to and from it. This adds the necessary code to nl80211.
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+
+---
+ include/linux/nl80211.h | 28 ++++++++++++++++
+ include/net/cfg80211.h | 35 ++++++++++++++++++++
+ net/wireless/nl80211.c | 82 +++++++++++++++++++++++++++++++++++++++++++++++-
+ 3 files changed, 144 insertions(+), 1 deletion(-)
+
+--- everything.orig/include/linux/nl80211.h 2007-11-08 17:15:15.961529840 +0100
++++ everything/include/linux/nl80211.h 2007-11-08 17:17:00.891547364 +0100
+@@ -157,6 +157,9 @@ enum nl80211_commands {
+ * restriction (at most %NL80211_MAX_SUPP_RATES).
+ * @NL80211_ATTR_STA_VLAN: interface index of VLAN interface to move station
+ * to, or the AP interface the station was originally added to to.
++ * @NL80211_ATTR_STA_STATS: statistics for a station, part of station info
++ * given for %NL80211_CMD_GET_STATION, nested attribute containing
++ * info as possible, see &enum nl80211_sta_stats.
+ *
+ * @NL80211_ATTR_MAX: highest attribute number currently defined
+ * @__NL80211_ATTR_AFTER_LAST: internal use
+@@ -190,6 +193,7 @@ enum nl80211_attrs {
+ NL80211_ATTR_STA_LISTEN_INTERVAL,
+ NL80211_ATTR_STA_SUPPORTED_RATES,
+ NL80211_ATTR_STA_VLAN,
++ NL80211_ATTR_STA_STATS,
+
+ /* add attributes here, update the policy in nl80211.c */
+
+@@ -252,4 +256,28 @@ enum nl80211_sta_flags {
+ NL80211_STA_FLAG_MAX = __NL80211_STA_FLAG_AFTER_LAST - 1
+ };
+
++/**
++ * enum nl80211_sta_stats - station statistics
++ *
++ * These attribute types are used with %NL80211_ATTR_STA_STATS
++ * when getting information about a station.
++ *
++ * @__NL80211_STA_STAT_INVALID: attribute number 0 is reserved
++ * @NL80211_STA_STAT_INACTIVE_TIME: time since last activity (u32, msecs)
++ * @NL80211_STA_STAT_RX_BYTES: total received bytes (u32, from this station)
++ * @NL80211_STA_STAT_TX_BYTES: total transmitted bytes (u32, to this station)
++ * @__NL80211_STA_STAT_AFTER_LAST: internal
++ * @NL80211_STA_STAT_MAX: highest possible station stats attribute
++ */
++enum nl80211_sta_stats {
++ __NL80211_STA_STAT_INVALID,
++ NL80211_STA_STAT_INACTIVE_TIME,
++ NL80211_STA_STAT_RX_BYTES,
++ NL80211_STA_STAT_TX_BYTES,
++
++ /* keep last */
++ __NL80211_STA_STAT_AFTER_LAST,
++ NL80211_STA_STAT_MAX = __NL80211_STA_STAT_AFTER_LAST - 1
++};
++
+ #endif /* __LINUX_NL80211_H */
+--- everything.orig/include/net/cfg80211.h 2007-11-08 17:15:15.971532444 +0100
++++ everything/include/net/cfg80211.h 2007-11-08 17:17:00.891547364 +0100
+@@ -130,6 +130,39 @@ struct station_parameters {
+ u8 supported_rates_len;
+ };
+
++/**
++ * enum station_stats_flags - station statistics flags
++ *
++ * Used by the driver to indicate which info in &struct station_stats
++ * it has filled in during get_station().
++ *
++ * @STATION_STAT_INACTIVE_TIME: @inactive_time filled
++ * @STATION_STAT_RX_BYTES: @rx_bytes filled
++ * @STATION_STAT_TX_BYTES: @tx_bytes filled
++ */
++enum station_stats_flags {
++ STATION_STAT_INACTIVE_TIME = 1<<0,
++ STATION_STAT_RX_BYTES = 1<<1,
++ STATION_STAT_TX_BYTES = 1<<2,
++};
++
++/**
++ * struct station_stats - station statistics
++ *
++ * Station information filled by driver for get_station().
++ *
++ * @filled: bitflag of flags from &enum station_stats_flags
++ * @inactive_time: time since last station activity (tx/rx) in milliseconds
++ * @rx_bytes: bytes received from this station
++ * @tx_bytes: bytes transmitted to this station
++ */
++struct station_stats {
++ u32 filled;
++ u32 inactive_time;
++ u32 rx_bytes;
++ u32 tx_bytes;
++};
++
+ /* from net/wireless.h */
+ struct wiphy;
+
+@@ -209,6 +242,8 @@ struct cfg80211_ops {
+ u8 *mac);
+ int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
+ u8 *mac, struct station_parameters *params);
++ int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
++ u8 *mac, struct station_stats *stats);
+ };
+
+ #endif /* __NET_CFG80211_H */
+--- everything.orig/net/wireless/nl80211.c 2007-11-08 17:15:15.981533909 +0100
++++ everything/net/wireless/nl80211.c 2007-11-08 17:17:00.901534235 +0100
+@@ -751,9 +751,89 @@ static int parse_station_flags(struct nl
+ return 0;
+ }
+
++static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
++ int flags, struct net_device *dev,
++ u8 *mac_addr, struct station_stats *stats)
++{
++ void *hdr;
++ struct nlattr *statsattr;
++
++ hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
++ if (!hdr)
++ return -1;
++
++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
++ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
++
++ statsattr = nla_nest_start(msg, NL80211_ATTR_STA_STATS);
++ if (!statsattr)
++ goto nla_put_failure;
++ if (stats->filled & STATION_STAT_INACTIVE_TIME)
++ NLA_PUT_U32(msg, NL80211_STA_STAT_INACTIVE_TIME,
++ stats->inactive_time);
++ if (stats->filled & STATION_STAT_RX_BYTES)
++ NLA_PUT_U32(msg, NL80211_STA_STAT_RX_BYTES,
++ stats->rx_bytes);
++ if (stats->filled & STATION_STAT_TX_BYTES)
++ NLA_PUT_U32(msg, NL80211_STA_STAT_TX_BYTES,
++ stats->tx_bytes);
++
++ nla_nest_end(msg, statsattr);
++
++ return genlmsg_end(msg, hdr);
++
++ nla_put_failure:
++ return genlmsg_cancel(msg, hdr);
++}
++
++
+ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
+ {
+- return -EOPNOTSUPP;
++ struct cfg80211_registered_device *drv;
++ int err;
++ struct net_device *dev;
++ struct station_stats stats;
++ struct sk_buff *msg;
++ u8 *mac_addr = NULL;
++
++ memset(&stats, 0, sizeof(stats));
++
++ if (!info->attrs[NL80211_ATTR_MAC])
++ return -EINVAL;
++
++ mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
++
++ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
++ if (err)
++ return err;
++
++ if (!drv->ops->get_station) {
++ err = -EOPNOTSUPP;
++ goto out;
++ }
++
++ rtnl_lock();
++ err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &stats);
++ rtnl_unlock();
++
++ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
++ if (!msg)
++ goto out;
++
++ if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
++ dev, mac_addr, &stats) < 0)
++ goto out_free;
++
++ err = genlmsg_unicast(msg, info->snd_pid);
++ goto out;
++
++ out_free:
++ nlmsg_free(msg);
++
++ out:
++ cfg80211_put_dev(drv);
++ dev_put(dev);
++ return err;
+ }
+
+ /*
--- /dev/null
+Subject: mac80211: implement station stats retrieval
+
+This implements the required cfg80211 callback in mac80211
+to allow userspace to get station statistics.
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+
+---
+ net/mac80211/cfg.c | 26 ++++++++++++++++++++++++++
+ 1 file changed, 26 insertions(+)
+
+--- everything.orig/net/mac80211/cfg.c 2007-11-08 17:15:51.801523493 +0100
++++ everything/net/mac80211/cfg.c 2007-11-08 17:17:01.921529351 +0100
+@@ -617,6 +617,31 @@ static int ieee80211_change_station(stru
+ return 0;
+ }
+
++static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
++ u8 *mac, struct station_stats *stats)
++{
++ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
++ struct sta_info *sta;
++
++ sta = sta_info_get(local, mac);
++ if (!sta)
++ return -ENOENT;
++
++ /* XXX: verify sta->dev == dev */
++
++ stats->filled = STATION_STAT_INACTIVE_TIME |
++ STATION_STAT_RX_BYTES |
++ STATION_STAT_TX_BYTES;
++
++ stats->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
++ stats->rx_bytes = sta->rx_bytes;
++ stats->tx_bytes = sta->tx_bytes;
++
++ sta_info_put(sta);
++
++ return 0;
++}
++
+ struct cfg80211_ops mac80211_config_ops = {
+ .add_virtual_intf = ieee80211_add_iface,
+ .del_virtual_intf = ieee80211_del_iface,
+@@ -631,4 +656,5 @@ struct cfg80211_ops mac80211_config_ops
+ .add_station = ieee80211_add_station,
+ .del_station = ieee80211_del_station,
+ .change_station = ieee80211_change_station,
++ .get_station = ieee80211_get_station,
+ };
+++ /dev/null
-config MAC80211
- tristate "Generic IEEE 802.11 Networking Stack (mac80211)"
- depends on EXPERIMENTAL
- select CRYPTO
- select CRYPTO_ECB
- select CRYPTO_ARC4
- select CRYPTO_AES
- select CRC32
- select WIRELESS_EXT
- select CFG80211
- select NET_SCH_FIFO
- ---help---
- This option enables the hardware independent IEEE 802.11
- networking stack.
-
-config MAC80211_LEDS
- bool "Enable LED triggers"
- depends on MAC80211 && LEDS_TRIGGERS
- ---help---
- This option enables a few LED triggers for different
- packet receive/transmit events.
-
-config MAC80211_DEBUGFS
- bool "Export mac80211 internals in DebugFS"
- depends on MAC80211 && DEBUG_FS
- ---help---
- Select this to see extensive information about
- the internal state of mac80211 in debugfs.
-
- Say N unless you know you need this.
-
-config MAC80211_DEBUG
- bool "Enable debugging output"
- depends on MAC80211
- ---help---
- This option will enable debug tracing output for the
- ieee80211 network stack.
-
- If you are not trying to debug or develop the ieee80211
- subsystem, you most likely want to say N here.
-
-config MAC80211_VERBOSE_DEBUG
- bool "Verbose debugging output"
- depends on MAC80211_DEBUG
-
-config MAC80211_LOWTX_FRAME_DUMP
- bool "Debug frame dumping"
- depends on MAC80211_DEBUG
- ---help---
- Selecting this option will cause the stack to
- print a message for each frame that is handed
- to the lowlevel driver for transmission. This
- message includes all MAC addresses and the
- frame control field.
-
- If unsure, say N and insert the debugging code
- you require into the driver you are debugging.
-
-config TKIP_DEBUG
- bool "TKIP debugging"
- depends on MAC80211_DEBUG
-
-config MAC80211_DEBUG_COUNTERS
- bool "Extra statistics for TX/RX debugging"
- depends on MAC80211_DEBUG
-
-config MAC80211_IBSS_DEBUG
- bool "Support for IBSS testing"
- depends on MAC80211_DEBUG
- ---help---
- Say Y here if you intend to debug the IBSS code.
-
-config MAC80211_VERBOSE_PS_DEBUG
- bool "Verbose powersave mode debugging"
- depends on MAC80211_DEBUG
- ---help---
- Say Y here to print out verbose powersave
- mode debug messages.
+++ /dev/null
-obj-$(CONFIG_MAC80211) += mac80211.o rc80211_simple.o
-
-mac80211-objs-$(CONFIG_MAC80211_LEDS) += ieee80211_led.o
-mac80211-objs-$(CONFIG_MAC80211_DEBUGFS) += debugfs.o debugfs_sta.o debugfs_netdev.o debugfs_key.o
-mac80211-objs-$(CONFIG_NET_SCHED) += wme.o
-
-mac80211-objs := \
- ieee80211.o \
- ieee80211_ioctl.o \
- sta_info.o \
- wep.o \
- wpa.o \
- ieee80211_sta.o \
- ieee80211_iface.o \
- ieee80211_rate.o \
- michael.o \
- regdomain.o \
- tkip.o \
- aes_ccm.o \
- cfg.o \
- rx.o \
- tx.o \
- key.o \
- util.o \
- event.o \
- $(mac80211-objs-y)
+++ /dev/null
-/*
- * Copyright 2003-2004, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/types.h>
-#include <linux/crypto.h>
-#include <linux/err.h>
-#include <asm/scatterlist.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_key.h"
-#include "aes_ccm.h"
-
-
-static void ieee80211_aes_encrypt(struct crypto_cipher *tfm,
- const u8 pt[16], u8 ct[16])
-{
- crypto_cipher_encrypt_one(tfm, ct, pt);
-}
-
-
-static inline void aes_ccm_prepare(struct crypto_cipher *tfm, u8 *b_0, u8 *aad,
- u8 *b, u8 *s_0, u8 *a)
-{
- int i;
-
- ieee80211_aes_encrypt(tfm, b_0, b);
-
- /* Extra Authenticate-only data (always two AES blocks) */
- for (i = 0; i < AES_BLOCK_LEN; i++)
- aad[i] ^= b[i];
- ieee80211_aes_encrypt(tfm, aad, b);
-
- aad += AES_BLOCK_LEN;
-
- for (i = 0; i < AES_BLOCK_LEN; i++)
- aad[i] ^= b[i];
- ieee80211_aes_encrypt(tfm, aad, a);
-
- /* Mask out bits from auth-only-b_0 */
- b_0[0] &= 0x07;
-
- /* S_0 is used to encrypt T (= MIC) */
- b_0[14] = 0;
- b_0[15] = 0;
- ieee80211_aes_encrypt(tfm, b_0, s_0);
-}
-
-
-void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
- u8 *b_0, u8 *aad, u8 *data, size_t data_len,
- u8 *cdata, u8 *mic)
-{
- int i, j, last_len, num_blocks;
- u8 *pos, *cpos, *b, *s_0, *e;
-
- b = scratch;
- s_0 = scratch + AES_BLOCK_LEN;
- e = scratch + 2 * AES_BLOCK_LEN;
-
- num_blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
- last_len = data_len % AES_BLOCK_LEN;
- aes_ccm_prepare(tfm, b_0, aad, b, s_0, b);
-
- /* Process payload blocks */
- pos = data;
- cpos = cdata;
- for (j = 1; j <= num_blocks; j++) {
- int blen = (j == num_blocks && last_len) ?
- last_len : AES_BLOCK_LEN;
-
- /* Authentication followed by encryption */
- for (i = 0; i < blen; i++)
- b[i] ^= pos[i];
- ieee80211_aes_encrypt(tfm, b, b);
-
- b_0[14] = (j >> 8) & 0xff;
- b_0[15] = j & 0xff;
- ieee80211_aes_encrypt(tfm, b_0, e);
- for (i = 0; i < blen; i++)
- *cpos++ = *pos++ ^ e[i];
- }
-
- for (i = 0; i < CCMP_MIC_LEN; i++)
- mic[i] = b[i] ^ s_0[i];
-}
-
-
-int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
- u8 *b_0, u8 *aad, u8 *cdata, size_t data_len,
- u8 *mic, u8 *data)
-{
- int i, j, last_len, num_blocks;
- u8 *pos, *cpos, *b, *s_0, *a;
-
- b = scratch;
- s_0 = scratch + AES_BLOCK_LEN;
- a = scratch + 2 * AES_BLOCK_LEN;
-
- num_blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
- last_len = data_len % AES_BLOCK_LEN;
- aes_ccm_prepare(tfm, b_0, aad, b, s_0, a);
-
- /* Process payload blocks */
- cpos = cdata;
- pos = data;
- for (j = 1; j <= num_blocks; j++) {
- int blen = (j == num_blocks && last_len) ?
- last_len : AES_BLOCK_LEN;
-
- /* Decryption followed by authentication */
- b_0[14] = (j >> 8) & 0xff;
- b_0[15] = j & 0xff;
- ieee80211_aes_encrypt(tfm, b_0, b);
- for (i = 0; i < blen; i++) {
- *pos = *cpos++ ^ b[i];
- a[i] ^= *pos++;
- }
-
- ieee80211_aes_encrypt(tfm, a, a);
- }
-
- for (i = 0; i < CCMP_MIC_LEN; i++) {
- if ((mic[i] ^ s_0[i]) != a[i])
- return -1;
- }
-
- return 0;
-}
-
-
-struct crypto_cipher * ieee80211_aes_key_setup_encrypt(const u8 key[])
-{
- struct crypto_cipher *tfm;
-
- tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
- if (IS_ERR(tfm))
- return NULL;
-
- crypto_cipher_setkey(tfm, key, ALG_CCMP_KEY_LEN);
-
- return tfm;
-}
-
-
-void ieee80211_aes_key_free(struct crypto_cipher *tfm)
-{
- if (tfm)
- crypto_free_cipher(tfm);
-}
+++ /dev/null
-/*
- * Copyright 2003-2004, Instant802 Networks, Inc.
- * Copyright 2006, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef AES_CCM_H
-#define AES_CCM_H
-
-#include <linux/crypto.h>
-
-#define AES_BLOCK_LEN 16
-
-struct crypto_cipher * ieee80211_aes_key_setup_encrypt(const u8 key[]);
-void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
- u8 *b_0, u8 *aad, u8 *data, size_t data_len,
- u8 *cdata, u8 *mic);
-int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
- u8 *b_0, u8 *aad, u8 *cdata, size_t data_len,
- u8 *mic, u8 *data);
-void ieee80211_aes_key_free(struct crypto_cipher *tfm);
-
-#endif /* AES_CCM_H */
+++ /dev/null
-/*
- * mac80211 configuration hooks for cfg80211
- *
- * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
- *
- * This file is GPLv2 as found in COPYING.
- */
-
-#include <linux/nl80211.h>
-#include <linux/rtnetlink.h>
-#include <net/cfg80211.h>
-#include "ieee80211_i.h"
-#include "cfg.h"
-
-static enum ieee80211_if_types
-nl80211_type_to_mac80211_type(enum nl80211_iftype type)
-{
- switch (type) {
- case NL80211_IFTYPE_UNSPECIFIED:
- return IEEE80211_IF_TYPE_STA;
- case NL80211_IFTYPE_ADHOC:
- return IEEE80211_IF_TYPE_IBSS;
- case NL80211_IFTYPE_STATION:
- return IEEE80211_IF_TYPE_STA;
- case NL80211_IFTYPE_MONITOR:
- return IEEE80211_IF_TYPE_MNTR;
- default:
- return IEEE80211_IF_TYPE_INVALID;
- }
-}
-
-static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
- enum nl80211_iftype type)
-{
- struct ieee80211_local *local = wiphy_priv(wiphy);
- enum ieee80211_if_types itype;
-
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
- return -ENODEV;
-
- itype = nl80211_type_to_mac80211_type(type);
- if (itype == IEEE80211_IF_TYPE_INVALID)
- return -EINVAL;
-
- return ieee80211_if_add(local->mdev, name, NULL, itype);
-}
-
-static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
-{
- struct ieee80211_local *local = wiphy_priv(wiphy);
- struct net_device *dev;
- char *name;
-
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
- return -ENODEV;
-
- /* we're under RTNL */
- dev = __dev_get_by_index(ifindex);
- if (!dev)
- return 0;
-
- name = dev->name;
-
- return ieee80211_if_remove(local->mdev, name, -1);
-}
-
-static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
- enum nl80211_iftype type)
-{
- struct ieee80211_local *local = wiphy_priv(wiphy);
- struct net_device *dev;
- enum ieee80211_if_types itype;
- struct ieee80211_sub_if_data *sdata;
-
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
- return -ENODEV;
-
- /* we're under RTNL */
- dev = __dev_get_by_index(ifindex);
- if (!dev)
- return -ENODEV;
-
- if (netif_running(dev))
- return -EBUSY;
-
- itype = nl80211_type_to_mac80211_type(type);
- if (itype == IEEE80211_IF_TYPE_INVALID)
- return -EINVAL;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->type == IEEE80211_IF_TYPE_VLAN)
- return -EOPNOTSUPP;
-
- ieee80211_if_reinit(dev);
- ieee80211_if_set_type(dev, itype);
-
- return 0;
-}
-
-struct cfg80211_ops mac80211_config_ops = {
- .add_virtual_intf = ieee80211_add_iface,
- .del_virtual_intf = ieee80211_del_iface,
- .change_virtual_intf = ieee80211_change_iface,
-};
+++ /dev/null
-/*
- * mac80211 configuration hooks for cfg80211
- */
-#ifndef __CFG_H
-#define __CFG_H
-
-extern struct cfg80211_ops mac80211_config_ops;
-
-#endif /* __CFG_H */
+++ /dev/null
-/*
- * mac80211 debugfs for wireless PHYs
- *
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * GPLv2
- *
- */
-
-#include <linux/debugfs.h>
-#include <linux/rtnetlink.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "debugfs.h"
-
-int mac80211_open_file_generic(struct inode *inode, struct file *file)
-{
- file->private_data = inode->i_private;
- return 0;
-}
-
-static const char *ieee80211_mode_str(int mode)
-{
- switch (mode) {
- case MODE_IEEE80211A:
- return "IEEE 802.11a";
- case MODE_IEEE80211B:
- return "IEEE 802.11b";
- case MODE_IEEE80211G:
- return "IEEE 802.11g";
- default:
- return "UNKNOWN";
- }
-}
-
-static ssize_t modes_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct ieee80211_local *local = file->private_data;
- struct ieee80211_hw_mode *mode;
- char buf[150], *p = buf;
-
- /* FIXME: locking! */
- list_for_each_entry(mode, &local->modes_list, list) {
- p += scnprintf(p, sizeof(buf)+buf-p,
- "%s\n", ieee80211_mode_str(mode->mode));
- }
-
- return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
-}
-
-static const struct file_operations modes_ops = {
- .read = modes_read,
- .open = mac80211_open_file_generic,
-};
-
-#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
-static ssize_t name## _read(struct file *file, char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- struct ieee80211_local *local = file->private_data; \
- char buf[buflen]; \
- int res; \
- \
- res = scnprintf(buf, buflen, fmt "\n", ##value); \
- return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
-} \
- \
-static const struct file_operations name## _ops = { \
- .read = name## _read, \
- .open = mac80211_open_file_generic, \
-};
-
-#define DEBUGFS_ADD(name) \
- local->debugfs.name = debugfs_create_file(#name, 0444, phyd, \
- local, &name## _ops);
-
-#define DEBUGFS_DEL(name) \
- debugfs_remove(local->debugfs.name); \
- local->debugfs.name = NULL;
-
-
-DEBUGFS_READONLY_FILE(channel, 20, "%d",
- local->hw.conf.channel);
-DEBUGFS_READONLY_FILE(frequency, 20, "%d",
- local->hw.conf.freq);
-DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d",
- local->hw.conf.antenna_sel_tx);
-DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d",
- local->hw.conf.antenna_sel_rx);
-DEBUGFS_READONLY_FILE(bridge_packets, 20, "%d",
- local->bridge_packets);
-DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
- local->rts_threshold);
-DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
- local->fragmentation_threshold);
-DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
- local->short_retry_limit);
-DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
- local->long_retry_limit);
-DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
- local->total_ps_buffered);
-DEBUGFS_READONLY_FILE(mode, 20, "%s",
- ieee80211_mode_str(local->hw.conf.phymode));
-DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x",
- local->wep_iv & 0xffffff);
-DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
- local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");
-
-/* statistics stuff */
-
-static inline int rtnl_lock_local(struct ieee80211_local *local)
-{
- rtnl_lock();
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) {
- rtnl_unlock();
- return -ENODEV;
- }
- return 0;
-}
-
-#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \
- DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)
-
-static ssize_t format_devstat_counter(struct ieee80211_local *local,
- char __user *userbuf,
- size_t count, loff_t *ppos,
- int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
- int buflen))
-{
- struct ieee80211_low_level_stats stats;
- char buf[20];
- int res;
-
- if (!local->ops->get_stats)
- return -EOPNOTSUPP;
-
- res = rtnl_lock_local(local);
- if (res)
- return res;
-
- res = local->ops->get_stats(local_to_hw(local), &stats);
- rtnl_unlock();
- if (!res)
- res = printvalue(&stats, buf, sizeof(buf));
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-
-#define DEBUGFS_DEVSTATS_FILE(name) \
-static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
- char *buf, int buflen) \
-{ \
- return scnprintf(buf, buflen, "%u\n", stats->name); \
-} \
-static ssize_t stats_ ##name## _read(struct file *file, \
- char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- return format_devstat_counter(file->private_data, \
- userbuf, \
- count, \
- ppos, \
- print_devstats_##name); \
-} \
- \
-static const struct file_operations stats_ ##name## _ops = { \
- .read = stats_ ##name## _read, \
- .open = mac80211_open_file_generic, \
-};
-
-#define DEBUGFS_STATS_ADD(name) \
- local->debugfs.stats.name = debugfs_create_file(#name, 0444, statsd,\
- local, &stats_ ##name## _ops);
-
-#define DEBUGFS_STATS_DEL(name) \
- debugfs_remove(local->debugfs.stats.name); \
- local->debugfs.stats.name = NULL;
-
-DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u",
- local->dot11TransmittedFragmentCount);
-DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u",
- local->dot11MulticastTransmittedFrameCount);
-DEBUGFS_STATS_FILE(failed_count, 20, "%u",
- local->dot11FailedCount);
-DEBUGFS_STATS_FILE(retry_count, 20, "%u",
- local->dot11RetryCount);
-DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u",
- local->dot11MultipleRetryCount);
-DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u",
- local->dot11FrameDuplicateCount);
-DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u",
- local->dot11ReceivedFragmentCount);
-DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u",
- local->dot11MulticastReceivedFrameCount);
-DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u",
- local->dot11TransmittedFrameCount);
-DEBUGFS_STATS_FILE(wep_undecryptable_count, 20, "%u",
- local->dot11WEPUndecryptableCount);
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
-DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u",
- local->tx_handlers_drop);
-DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u",
- local->tx_handlers_queued);
-DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u",
- local->tx_handlers_drop_unencrypted);
-DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u",
- local->tx_handlers_drop_fragment);
-DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u",
- local->tx_handlers_drop_wep);
-DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u",
- local->tx_handlers_drop_not_assoc);
-DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u",
- local->tx_handlers_drop_unauth_port);
-DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u",
- local->rx_handlers_drop);
-DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u",
- local->rx_handlers_queued);
-DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u",
- local->rx_handlers_drop_nullfunc);
-DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u",
- local->rx_handlers_drop_defrag);
-DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u",
- local->rx_handlers_drop_short);
-DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u",
- local->rx_handlers_drop_passive_scan);
-DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u",
- local->tx_expand_skb_head);
-DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u",
- local->tx_expand_skb_head_cloned);
-DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u",
- local->rx_expand_skb_head);
-DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u",
- local->rx_expand_skb_head2);
-DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u",
- local->rx_handlers_fragments);
-DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u",
- local->tx_status_drop);
-
-static ssize_t stats_wme_rx_queue_read(struct file *file,
- char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct ieee80211_local *local = file->private_data;
- char buf[NUM_RX_DATA_QUEUES*15], *p = buf;
- int i;
-
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
- p += scnprintf(p, sizeof(buf)+buf-p,
- "%u\n", local->wme_rx_queue[i]);
-
- return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
-}
-
-static const struct file_operations stats_wme_rx_queue_ops = {
- .read = stats_wme_rx_queue_read,
- .open = mac80211_open_file_generic,
-};
-
-static ssize_t stats_wme_tx_queue_read(struct file *file,
- char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct ieee80211_local *local = file->private_data;
- char buf[NUM_TX_DATA_QUEUES*15], *p = buf;
- int i;
-
- for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
- p += scnprintf(p, sizeof(buf)+buf-p,
- "%u\n", local->wme_tx_queue[i]);
-
- return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
-}
-
-static const struct file_operations stats_wme_tx_queue_ops = {
- .read = stats_wme_tx_queue_read,
- .open = mac80211_open_file_generic,
-};
-#endif
-
-DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
-DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
-DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
-DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
-
-
-void debugfs_hw_add(struct ieee80211_local *local)
-{
- struct dentry *phyd = local->hw.wiphy->debugfsdir;
- struct dentry *statsd;
-
- if (!phyd)
- return;
-
- local->debugfs.stations = debugfs_create_dir("stations", phyd);
- local->debugfs.keys = debugfs_create_dir("keys", phyd);
-
- DEBUGFS_ADD(channel);
- DEBUGFS_ADD(frequency);
- DEBUGFS_ADD(antenna_sel_tx);
- DEBUGFS_ADD(antenna_sel_rx);
- DEBUGFS_ADD(bridge_packets);
- DEBUGFS_ADD(rts_threshold);
- DEBUGFS_ADD(fragmentation_threshold);
- DEBUGFS_ADD(short_retry_limit);
- DEBUGFS_ADD(long_retry_limit);
- DEBUGFS_ADD(total_ps_buffered);
- DEBUGFS_ADD(mode);
- DEBUGFS_ADD(wep_iv);
- DEBUGFS_ADD(modes);
-
- statsd = debugfs_create_dir("statistics", phyd);
- local->debugfs.statistics = statsd;
-
- /* if the dir failed, don't put all the other things into the root! */
- if (!statsd)
- return;
-
- DEBUGFS_STATS_ADD(transmitted_fragment_count);
- DEBUGFS_STATS_ADD(multicast_transmitted_frame_count);
- DEBUGFS_STATS_ADD(failed_count);
- DEBUGFS_STATS_ADD(retry_count);
- DEBUGFS_STATS_ADD(multiple_retry_count);
- DEBUGFS_STATS_ADD(frame_duplicate_count);
- DEBUGFS_STATS_ADD(received_fragment_count);
- DEBUGFS_STATS_ADD(multicast_received_frame_count);
- DEBUGFS_STATS_ADD(transmitted_frame_count);
- DEBUGFS_STATS_ADD(wep_undecryptable_count);
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- DEBUGFS_STATS_ADD(tx_handlers_drop);
- DEBUGFS_STATS_ADD(tx_handlers_queued);
- DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted);
- DEBUGFS_STATS_ADD(tx_handlers_drop_fragment);
- DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
- DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
- DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
- DEBUGFS_STATS_ADD(rx_handlers_drop);
- DEBUGFS_STATS_ADD(rx_handlers_queued);
- DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
- DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
- DEBUGFS_STATS_ADD(rx_handlers_drop_short);
- DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan);
- DEBUGFS_STATS_ADD(tx_expand_skb_head);
- DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
- DEBUGFS_STATS_ADD(rx_expand_skb_head);
- DEBUGFS_STATS_ADD(rx_expand_skb_head2);
- DEBUGFS_STATS_ADD(rx_handlers_fragments);
- DEBUGFS_STATS_ADD(tx_status_drop);
- DEBUGFS_STATS_ADD(wme_tx_queue);
- DEBUGFS_STATS_ADD(wme_rx_queue);
-#endif
- DEBUGFS_STATS_ADD(dot11ACKFailureCount);
- DEBUGFS_STATS_ADD(dot11RTSFailureCount);
- DEBUGFS_STATS_ADD(dot11FCSErrorCount);
- DEBUGFS_STATS_ADD(dot11RTSSuccessCount);
-}
-
-void debugfs_hw_del(struct ieee80211_local *local)
-{
- DEBUGFS_DEL(channel);
- DEBUGFS_DEL(frequency);
- DEBUGFS_DEL(antenna_sel_tx);
- DEBUGFS_DEL(antenna_sel_rx);
- DEBUGFS_DEL(bridge_packets);
- DEBUGFS_DEL(rts_threshold);
- DEBUGFS_DEL(fragmentation_threshold);
- DEBUGFS_DEL(short_retry_limit);
- DEBUGFS_DEL(long_retry_limit);
- DEBUGFS_DEL(total_ps_buffered);
- DEBUGFS_DEL(mode);
- DEBUGFS_DEL(wep_iv);
- DEBUGFS_DEL(modes);
-
- DEBUGFS_STATS_DEL(transmitted_fragment_count);
- DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);
- DEBUGFS_STATS_DEL(failed_count);
- DEBUGFS_STATS_DEL(retry_count);
- DEBUGFS_STATS_DEL(multiple_retry_count);
- DEBUGFS_STATS_DEL(frame_duplicate_count);
- DEBUGFS_STATS_DEL(received_fragment_count);
- DEBUGFS_STATS_DEL(multicast_received_frame_count);
- DEBUGFS_STATS_DEL(transmitted_frame_count);
- DEBUGFS_STATS_DEL(wep_undecryptable_count);
- DEBUGFS_STATS_DEL(num_scans);
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- DEBUGFS_STATS_DEL(tx_handlers_drop);
- DEBUGFS_STATS_DEL(tx_handlers_queued);
- DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted);
- DEBUGFS_STATS_DEL(tx_handlers_drop_fragment);
- DEBUGFS_STATS_DEL(tx_handlers_drop_wep);
- DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc);
- DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port);
- DEBUGFS_STATS_DEL(rx_handlers_drop);
- DEBUGFS_STATS_DEL(rx_handlers_queued);
- DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc);
- DEBUGFS_STATS_DEL(rx_handlers_drop_defrag);
- DEBUGFS_STATS_DEL(rx_handlers_drop_short);
- DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan);
- DEBUGFS_STATS_DEL(tx_expand_skb_head);
- DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned);
- DEBUGFS_STATS_DEL(rx_expand_skb_head);
- DEBUGFS_STATS_DEL(rx_expand_skb_head2);
- DEBUGFS_STATS_DEL(rx_handlers_fragments);
- DEBUGFS_STATS_DEL(tx_status_drop);
- DEBUGFS_STATS_DEL(wme_tx_queue);
- DEBUGFS_STATS_DEL(wme_rx_queue);
-#endif
- DEBUGFS_STATS_DEL(dot11ACKFailureCount);
- DEBUGFS_STATS_DEL(dot11RTSFailureCount);
- DEBUGFS_STATS_DEL(dot11FCSErrorCount);
- DEBUGFS_STATS_DEL(dot11RTSSuccessCount);
-
- debugfs_remove(local->debugfs.statistics);
- local->debugfs.statistics = NULL;
- debugfs_remove(local->debugfs.stations);
- local->debugfs.stations = NULL;
- debugfs_remove(local->debugfs.keys);
- local->debugfs.keys = NULL;
-}
+++ /dev/null
-#ifndef __MAC80211_DEBUGFS_H
-#define __MAC80211_DEBUGFS_H
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-extern void debugfs_hw_add(struct ieee80211_local *local);
-extern void debugfs_hw_del(struct ieee80211_local *local);
-extern int mac80211_open_file_generic(struct inode *inode, struct file *file);
-#else
-static inline void debugfs_hw_add(struct ieee80211_local *local)
-{
- return;
-}
-static inline void debugfs_hw_del(struct ieee80211_local *local) {}
-#endif
-
-#endif /* __MAC80211_DEBUGFS_H */
+++ /dev/null
-/*
- * Copyright 2003-2005 Devicescape Software, Inc.
- * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kobject.h>
-#include "ieee80211_i.h"
-#include "ieee80211_key.h"
-#include "debugfs.h"
-#include "debugfs_key.h"
-
-#define KEY_READ(name, prop, buflen, format_string) \
-static ssize_t key_##name##_read(struct file *file, \
- char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- char buf[buflen]; \
- struct ieee80211_key *key = file->private_data; \
- int res = scnprintf(buf, buflen, format_string, key->prop); \
- return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
-}
-#define KEY_READ_D(name) KEY_READ(name, name, 20, "%d\n")
-#define KEY_READ_X(name) KEY_READ(name, name, 20, "0x%x\n")
-
-#define KEY_OPS(name) \
-static const struct file_operations key_ ##name## _ops = { \
- .read = key_##name##_read, \
- .open = mac80211_open_file_generic, \
-}
-
-#define KEY_FILE(name, format) \
- KEY_READ_##format(name) \
- KEY_OPS(name)
-
-#define KEY_CONF_READ(name, buflen, format_string) \
- KEY_READ(conf_##name, conf.name, buflen, format_string)
-#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, 20, "%d\n")
-
-#define KEY_CONF_OPS(name) \
-static const struct file_operations key_ ##name## _ops = { \
- .read = key_conf_##name##_read, \
- .open = mac80211_open_file_generic, \
-}
-
-#define KEY_CONF_FILE(name, format) \
- KEY_CONF_READ_##format(name) \
- KEY_CONF_OPS(name)
-
-KEY_CONF_FILE(keylen, D);
-KEY_CONF_FILE(keyidx, D);
-KEY_CONF_FILE(hw_key_idx, D);
-KEY_FILE(flags, X);
-KEY_FILE(tx_rx_count, D);
-KEY_READ(ifindex, sdata->dev->ifindex, 20, "%d\n");
-KEY_OPS(ifindex);
-
-static ssize_t key_algorithm_read(struct file *file,
- char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char *alg;
- struct ieee80211_key *key = file->private_data;
-
- switch (key->conf.alg) {
- case ALG_WEP:
- alg = "WEP\n";
- break;
- case ALG_TKIP:
- alg = "TKIP\n";
- break;
- case ALG_CCMP:
- alg = "CCMP\n";
- break;
- default:
- return 0;
- }
- return simple_read_from_buffer(userbuf, count, ppos, alg, strlen(alg));
-}
-KEY_OPS(algorithm);
-
-static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- const u8 *tpn;
- char buf[20];
- int len;
- struct ieee80211_key *key = file->private_data;
-
- switch (key->conf.alg) {
- case ALG_WEP:
- len = scnprintf(buf, sizeof(buf), "\n");
- break;
- case ALG_TKIP:
- len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
- key->u.tkip.iv32,
- key->u.tkip.iv16);
- break;
- case ALG_CCMP:
- tpn = key->u.ccmp.tx_pn;
- len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
- tpn[0], tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
- break;
- default:
- return 0;
- }
- return simple_read_from_buffer(userbuf, count, ppos, buf, len);
-}
-KEY_OPS(tx_spec);
-
-static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct ieee80211_key *key = file->private_data;
- char buf[14*NUM_RX_DATA_QUEUES+1], *p = buf;
- int i, len;
- const u8 *rpn;
-
- switch (key->conf.alg) {
- case ALG_WEP:
- len = scnprintf(buf, sizeof(buf), "\n");
- break;
- case ALG_TKIP:
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
- p += scnprintf(p, sizeof(buf)+buf-p,
- "%08x %04x\n",
- key->u.tkip.iv32_rx[i],
- key->u.tkip.iv16_rx[i]);
- len = p - buf;
- break;
- case ALG_CCMP:
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
- rpn = key->u.ccmp.rx_pn[i];
- p += scnprintf(p, sizeof(buf)+buf-p,
- "%02x%02x%02x%02x%02x%02x\n",
- rpn[0], rpn[1], rpn[2],
- rpn[3], rpn[4], rpn[5]);
- }
- len = p - buf;
- break;
- default:
- return 0;
- }
- return simple_read_from_buffer(userbuf, count, ppos, buf, len);
-}
-KEY_OPS(rx_spec);
-
-static ssize_t key_replays_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct ieee80211_key *key = file->private_data;
- char buf[20];
- int len;
-
- if (key->conf.alg != ALG_CCMP)
- return 0;
- len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
- return simple_read_from_buffer(userbuf, count, ppos, buf, len);
-}
-KEY_OPS(replays);
-
-static ssize_t key_key_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct ieee80211_key *key = file->private_data;
- int i, res, bufsize = 2 * key->conf.keylen + 2;
- char *buf = kmalloc(bufsize, GFP_KERNEL);
- char *p = buf;
-
- for (i = 0; i < key->conf.keylen; i++)
- p += scnprintf(p, bufsize + buf - p, "%02x", key->conf.key[i]);
- p += scnprintf(p, bufsize+buf-p, "\n");
- res = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
- kfree(buf);
- return res;
-}
-KEY_OPS(key);
-
-#define DEBUGFS_ADD(name) \
- key->debugfs.name = debugfs_create_file(#name, 0400,\
- key->debugfs.dir, key, &key_##name##_ops);
-
-void ieee80211_debugfs_key_add(struct ieee80211_local *local,
- struct ieee80211_key *key)
-{
- static int keycount;
- char buf[20];
-
- if (!local->debugfs.keys)
- return;
-
- sprintf(buf, "%d", keycount);
- keycount++;
- key->debugfs.dir = debugfs_create_dir(buf,
- local->debugfs.keys);
-
- if (!key->debugfs.dir)
- return;
-
- DEBUGFS_ADD(keylen);
- DEBUGFS_ADD(flags);
- DEBUGFS_ADD(keyidx);
- DEBUGFS_ADD(hw_key_idx);
- DEBUGFS_ADD(tx_rx_count);
- DEBUGFS_ADD(algorithm);
- DEBUGFS_ADD(tx_spec);
- DEBUGFS_ADD(rx_spec);
- DEBUGFS_ADD(replays);
- DEBUGFS_ADD(key);
- DEBUGFS_ADD(ifindex);
-};
-
-#define DEBUGFS_DEL(name) \
- debugfs_remove(key->debugfs.name); key->debugfs.name = NULL;
-
-void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
-{
- if (!key)
- return;
-
- DEBUGFS_DEL(keylen);
- DEBUGFS_DEL(flags);
- DEBUGFS_DEL(keyidx);
- DEBUGFS_DEL(hw_key_idx);
- DEBUGFS_DEL(tx_rx_count);
- DEBUGFS_DEL(algorithm);
- DEBUGFS_DEL(tx_spec);
- DEBUGFS_DEL(rx_spec);
- DEBUGFS_DEL(replays);
- DEBUGFS_DEL(key);
- DEBUGFS_DEL(ifindex);
-
- debugfs_remove(key->debugfs.stalink);
- key->debugfs.stalink = NULL;
- debugfs_remove(key->debugfs.dir);
- key->debugfs.dir = NULL;
-}
-void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata)
-{
- char buf[50];
-
- if (!sdata->debugfsdir)
- return;
-
- sprintf(buf, "../keys/%d", sdata->default_key->conf.keyidx);
- sdata->debugfs.default_key =
- debugfs_create_symlink("default_key", sdata->debugfsdir, buf);
-}
-void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata)
-{
- if (!sdata)
- return;
-
- debugfs_remove(sdata->debugfs.default_key);
- sdata->debugfs.default_key = NULL;
-}
-void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key,
- struct sta_info *sta)
-{
- char buf[50];
-
- if (!key->debugfs.dir)
- return;
-
- sprintf(buf, "../../stations/" MAC_FMT, MAC_ARG(sta->addr));
- key->debugfs.stalink =
- debugfs_create_symlink("station", key->debugfs.dir, buf);
-}
-
-void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
- struct sta_info *sta)
-{
- debugfs_remove(key->debugfs.stalink);
- key->debugfs.stalink = NULL;
-}
+++ /dev/null
-#ifndef __MAC80211_DEBUGFS_KEY_H
-#define __MAC80211_DEBUGFS_KEY_H
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-void ieee80211_debugfs_key_add(struct ieee80211_local *local,
- struct ieee80211_key *key);
-void ieee80211_debugfs_key_remove(struct ieee80211_key *key);
-void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata);
-void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata);
-void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key,
- struct sta_info *sta);
-void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
- struct sta_info *sta);
-#else
-static inline void ieee80211_debugfs_key_add(struct ieee80211_local *local,
- struct ieee80211_key *key)
-{}
-static inline void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
-{}
-static inline void ieee80211_debugfs_key_add_default(
- struct ieee80211_sub_if_data *sdata)
-{}
-static inline void ieee80211_debugfs_key_remove_default(
- struct ieee80211_sub_if_data *sdata)
-{}
-static inline void ieee80211_debugfs_key_sta_link(
- struct ieee80211_key *key, struct sta_info *sta)
-{}
-static inline void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
- struct sta_info *sta)
-{}
-#endif
-
-#endif /* __MAC80211_DEBUGFS_KEY_H */
+++ /dev/null
-/*
- * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/if.h>
-#include <linux/interrupt.h>
-#include <linux/netdevice.h>
-#include <linux/rtnetlink.h>
-#include <linux/notifier.h>
-#include <net/mac80211.h>
-#include <net/cfg80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "debugfs.h"
-#include "debugfs_netdev.h"
-
-static ssize_t ieee80211_if_read(
- struct ieee80211_sub_if_data *sdata,
- char __user *userbuf,
- size_t count, loff_t *ppos,
- ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int))
-{
- char buf[70];
- ssize_t ret = -EINVAL;
-
- read_lock(&dev_base_lock);
- if (sdata->dev->reg_state == NETREG_REGISTERED) {
- ret = (*format)(sdata, buf, sizeof(buf));
- ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
- }
- read_unlock(&dev_base_lock);
- return ret;
-}
-
-#define IEEE80211_IF_FMT(name, field, format_string) \
-static ssize_t ieee80211_if_fmt_##name( \
- const struct ieee80211_sub_if_data *sdata, char *buf, \
- int buflen) \
-{ \
- return scnprintf(buf, buflen, format_string, sdata->field); \
-}
-#define IEEE80211_IF_FMT_DEC(name, field) \
- IEEE80211_IF_FMT(name, field, "%d\n")
-#define IEEE80211_IF_FMT_HEX(name, field) \
- IEEE80211_IF_FMT(name, field, "%#x\n")
-#define IEEE80211_IF_FMT_SIZE(name, field) \
- IEEE80211_IF_FMT(name, field, "%zd\n")
-
-#define IEEE80211_IF_FMT_ATOMIC(name, field) \
-static ssize_t ieee80211_if_fmt_##name( \
- const struct ieee80211_sub_if_data *sdata, \
- char *buf, int buflen) \
-{ \
- return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
-}
-
-#define IEEE80211_IF_FMT_MAC(name, field) \
-static ssize_t ieee80211_if_fmt_##name( \
- const struct ieee80211_sub_if_data *sdata, char *buf, \
- int buflen) \
-{ \
- return scnprintf(buf, buflen, MAC_FMT "\n", MAC_ARG(sdata->field));\
-}
-
-#define __IEEE80211_IF_FILE(name) \
-static ssize_t ieee80211_if_read_##name(struct file *file, \
- char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- return ieee80211_if_read(file->private_data, \
- userbuf, count, ppos, \
- ieee80211_if_fmt_##name); \
-} \
-static const struct file_operations name##_ops = { \
- .read = ieee80211_if_read_##name, \
- .open = mac80211_open_file_generic, \
-}
-
-#define IEEE80211_IF_FILE(name, field, format) \
- IEEE80211_IF_FMT_##format(name, field) \
- __IEEE80211_IF_FILE(name)
-
-/* common attributes */
-IEEE80211_IF_FILE(channel_use, channel_use, DEC);
-IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
-IEEE80211_IF_FILE(eapol, eapol, DEC);
-IEEE80211_IF_FILE(ieee8021_x, ieee802_1x, DEC);
-
-/* STA/IBSS attributes */
-IEEE80211_IF_FILE(state, u.sta.state, DEC);
-IEEE80211_IF_FILE(bssid, u.sta.bssid, MAC);
-IEEE80211_IF_FILE(prev_bssid, u.sta.prev_bssid, MAC);
-IEEE80211_IF_FILE(ssid_len, u.sta.ssid_len, SIZE);
-IEEE80211_IF_FILE(aid, u.sta.aid, DEC);
-IEEE80211_IF_FILE(ap_capab, u.sta.ap_capab, HEX);
-IEEE80211_IF_FILE(capab, u.sta.capab, HEX);
-IEEE80211_IF_FILE(extra_ie_len, u.sta.extra_ie_len, SIZE);
-IEEE80211_IF_FILE(auth_tries, u.sta.auth_tries, DEC);
-IEEE80211_IF_FILE(assoc_tries, u.sta.assoc_tries, DEC);
-IEEE80211_IF_FILE(auth_algs, u.sta.auth_algs, HEX);
-IEEE80211_IF_FILE(auth_alg, u.sta.auth_alg, DEC);
-IEEE80211_IF_FILE(auth_transaction, u.sta.auth_transaction, DEC);
-
-static ssize_t ieee80211_if_fmt_flags(
- const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
-{
- return scnprintf(buf, buflen, "%s%s%s%s%s%s%s\n",
- sdata->u.sta.flags & IEEE80211_STA_SSID_SET ? "SSID\n" : "",
- sdata->u.sta.flags & IEEE80211_STA_BSSID_SET ? "BSSID\n" : "",
- sdata->u.sta.flags & IEEE80211_STA_PREV_BSSID_SET ? "prev BSSID\n" : "",
- sdata->u.sta.flags & IEEE80211_STA_AUTHENTICATED ? "AUTH\n" : "",
- sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED ? "ASSOC\n" : "",
- sdata->u.sta.flags & IEEE80211_STA_PROBEREQ_POLL ? "PROBEREQ POLL\n" : "",
- sdata->flags & IEEE80211_SDATA_USE_PROTECTION ? "CTS prot\n" : "");
-}
-__IEEE80211_IF_FILE(flags);
-
-/* AP attributes */
-IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
-IEEE80211_IF_FILE(dtim_period, u.ap.dtim_period, DEC);
-IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
-IEEE80211_IF_FILE(num_beacons, u.ap.num_beacons, DEC);
-IEEE80211_IF_FILE(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC);
-IEEE80211_IF_FILE(max_ratectrl_rateidx, u.ap.max_ratectrl_rateidx, DEC);
-
-static ssize_t ieee80211_if_fmt_num_buffered_multicast(
- const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
-{
- return scnprintf(buf, buflen, "%u\n",
- skb_queue_len(&sdata->u.ap.ps_bc_buf));
-}
-__IEEE80211_IF_FILE(num_buffered_multicast);
-
-static ssize_t ieee80211_if_fmt_beacon_head_len(
- const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
-{
- if (sdata->u.ap.beacon_head)
- return scnprintf(buf, buflen, "%d\n",
- sdata->u.ap.beacon_head_len);
- return scnprintf(buf, buflen, "\n");
-}
-__IEEE80211_IF_FILE(beacon_head_len);
-
-static ssize_t ieee80211_if_fmt_beacon_tail_len(
- const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
-{
- if (sdata->u.ap.beacon_tail)
- return scnprintf(buf, buflen, "%d\n",
- sdata->u.ap.beacon_tail_len);
- return scnprintf(buf, buflen, "\n");
-}
-__IEEE80211_IF_FILE(beacon_tail_len);
-
-/* WDS attributes */
-IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
-
-#define DEBUGFS_ADD(name, type)\
- sdata->debugfs.type.name = debugfs_create_file(#name, 0444,\
- sdata->debugfsdir, sdata, &name##_ops);
-
-static void add_sta_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_ADD(channel_use, sta);
- DEBUGFS_ADD(drop_unencrypted, sta);
- DEBUGFS_ADD(eapol, sta);
- DEBUGFS_ADD(ieee8021_x, sta);
- DEBUGFS_ADD(state, sta);
- DEBUGFS_ADD(bssid, sta);
- DEBUGFS_ADD(prev_bssid, sta);
- DEBUGFS_ADD(ssid_len, sta);
- DEBUGFS_ADD(aid, sta);
- DEBUGFS_ADD(ap_capab, sta);
- DEBUGFS_ADD(capab, sta);
- DEBUGFS_ADD(extra_ie_len, sta);
- DEBUGFS_ADD(auth_tries, sta);
- DEBUGFS_ADD(assoc_tries, sta);
- DEBUGFS_ADD(auth_algs, sta);
- DEBUGFS_ADD(auth_alg, sta);
- DEBUGFS_ADD(auth_transaction, sta);
- DEBUGFS_ADD(flags, sta);
-}
-
-static void add_ap_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_ADD(channel_use, ap);
- DEBUGFS_ADD(drop_unencrypted, ap);
- DEBUGFS_ADD(eapol, ap);
- DEBUGFS_ADD(ieee8021_x, ap);
- DEBUGFS_ADD(num_sta_ps, ap);
- DEBUGFS_ADD(dtim_period, ap);
- DEBUGFS_ADD(dtim_count, ap);
- DEBUGFS_ADD(num_beacons, ap);
- DEBUGFS_ADD(force_unicast_rateidx, ap);
- DEBUGFS_ADD(max_ratectrl_rateidx, ap);
- DEBUGFS_ADD(num_buffered_multicast, ap);
- DEBUGFS_ADD(beacon_head_len, ap);
- DEBUGFS_ADD(beacon_tail_len, ap);
-}
-
-static void add_wds_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_ADD(channel_use, wds);
- DEBUGFS_ADD(drop_unencrypted, wds);
- DEBUGFS_ADD(eapol, wds);
- DEBUGFS_ADD(ieee8021_x, wds);
- DEBUGFS_ADD(peer, wds);
-}
-
-static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_ADD(channel_use, vlan);
- DEBUGFS_ADD(drop_unencrypted, vlan);
- DEBUGFS_ADD(eapol, vlan);
- DEBUGFS_ADD(ieee8021_x, vlan);
-}
-
-static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
-{
-}
-
-static void add_files(struct ieee80211_sub_if_data *sdata)
-{
- if (!sdata->debugfsdir)
- return;
-
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- add_sta_files(sdata);
- break;
- case IEEE80211_IF_TYPE_AP:
- add_ap_files(sdata);
- break;
- case IEEE80211_IF_TYPE_WDS:
- add_wds_files(sdata);
- break;
- case IEEE80211_IF_TYPE_MNTR:
- add_monitor_files(sdata);
- break;
- case IEEE80211_IF_TYPE_VLAN:
- add_vlan_files(sdata);
- break;
- default:
- break;
- }
-}
-
-#define DEBUGFS_DEL(name, type) \
- do { \
- debugfs_remove(sdata->debugfs.type.name); \
- sdata->debugfs.type.name = NULL; \
- } while (0)
-
-static void del_sta_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_DEL(channel_use, sta);
- DEBUGFS_DEL(drop_unencrypted, sta);
- DEBUGFS_DEL(eapol, sta);
- DEBUGFS_DEL(ieee8021_x, sta);
- DEBUGFS_DEL(state, sta);
- DEBUGFS_DEL(bssid, sta);
- DEBUGFS_DEL(prev_bssid, sta);
- DEBUGFS_DEL(ssid_len, sta);
- DEBUGFS_DEL(aid, sta);
- DEBUGFS_DEL(ap_capab, sta);
- DEBUGFS_DEL(capab, sta);
- DEBUGFS_DEL(extra_ie_len, sta);
- DEBUGFS_DEL(auth_tries, sta);
- DEBUGFS_DEL(assoc_tries, sta);
- DEBUGFS_DEL(auth_algs, sta);
- DEBUGFS_DEL(auth_alg, sta);
- DEBUGFS_DEL(auth_transaction, sta);
- DEBUGFS_DEL(flags, sta);
-}
-
-static void del_ap_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_DEL(channel_use, ap);
- DEBUGFS_DEL(drop_unencrypted, ap);
- DEBUGFS_DEL(eapol, ap);
- DEBUGFS_DEL(ieee8021_x, ap);
- DEBUGFS_DEL(num_sta_ps, ap);
- DEBUGFS_DEL(dtim_period, ap);
- DEBUGFS_DEL(dtim_count, ap);
- DEBUGFS_DEL(num_beacons, ap);
- DEBUGFS_DEL(force_unicast_rateidx, ap);
- DEBUGFS_DEL(max_ratectrl_rateidx, ap);
- DEBUGFS_DEL(num_buffered_multicast, ap);
- DEBUGFS_DEL(beacon_head_len, ap);
- DEBUGFS_DEL(beacon_tail_len, ap);
-}
-
-static void del_wds_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_DEL(channel_use, wds);
- DEBUGFS_DEL(drop_unencrypted, wds);
- DEBUGFS_DEL(eapol, wds);
- DEBUGFS_DEL(ieee8021_x, wds);
- DEBUGFS_DEL(peer, wds);
-}
-
-static void del_vlan_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_DEL(channel_use, vlan);
- DEBUGFS_DEL(drop_unencrypted, vlan);
- DEBUGFS_DEL(eapol, vlan);
- DEBUGFS_DEL(ieee8021_x, vlan);
-}
-
-static void del_monitor_files(struct ieee80211_sub_if_data *sdata)
-{
-}
-
-static void del_files(struct ieee80211_sub_if_data *sdata, int type)
-{
- if (!sdata->debugfsdir)
- return;
-
- switch (type) {
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- del_sta_files(sdata);
- break;
- case IEEE80211_IF_TYPE_AP:
- del_ap_files(sdata);
- break;
- case IEEE80211_IF_TYPE_WDS:
- del_wds_files(sdata);
- break;
- case IEEE80211_IF_TYPE_MNTR:
- del_monitor_files(sdata);
- break;
- case IEEE80211_IF_TYPE_VLAN:
- del_vlan_files(sdata);
- break;
- default:
- break;
- }
-}
-
-static int notif_registered;
-
-void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
-{
- char buf[10+IFNAMSIZ];
-
- if (!notif_registered)
- return;
-
- sprintf(buf, "netdev:%s", sdata->dev->name);
- sdata->debugfsdir = debugfs_create_dir(buf,
- sdata->local->hw.wiphy->debugfsdir);
-}
-
-void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
-{
- del_files(sdata, sdata->type);
- debugfs_remove(sdata->debugfsdir);
- sdata->debugfsdir = NULL;
-}
-
-void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
- int oldtype)
-{
- del_files(sdata, oldtype);
- add_files(sdata);
-}
-
-static int netdev_notify(struct notifier_block * nb,
- unsigned long state,
- void *ndev)
-{
- struct net_device *dev = ndev;
- struct dentry *dir;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- char buf[10+IFNAMSIZ];
-
- if (state != NETDEV_CHANGENAME)
- return 0;
-
- if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy)
- return 0;
-
- if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
- return 0;
-
- sprintf(buf, "netdev:%s", dev->name);
- dir = sdata->debugfsdir;
- if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
- printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
- "dir to %s\n", buf);
-
- return 0;
-}
-
-static struct notifier_block mac80211_debugfs_netdev_notifier = {
- .notifier_call = netdev_notify,
-};
-
-void ieee80211_debugfs_netdev_init(void)
-{
- int err;
-
- err = register_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
- if (err) {
- printk(KERN_ERR
- "mac80211: failed to install netdev notifier,"
- " disabling per-netdev debugfs!\n");
- } else
- notif_registered = 1;
-}
-
-void ieee80211_debugfs_netdev_exit(void)
-{
- unregister_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
- notif_registered = 0;
-}
+++ /dev/null
-/* routines exported for debugfs handling */
-
-#ifndef __IEEE80211_DEBUGFS_NETDEV_H
-#define __IEEE80211_DEBUGFS_NETDEV_H
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata);
-void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata);
-void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
- int oldtype);
-void ieee80211_debugfs_netdev_init(void);
-void ieee80211_debugfs_netdev_exit(void);
-#else
-static inline void ieee80211_debugfs_add_netdev(
- struct ieee80211_sub_if_data *sdata)
-{}
-static inline void ieee80211_debugfs_remove_netdev(
- struct ieee80211_sub_if_data *sdata)
-{}
-static inline void ieee80211_debugfs_change_if_type(
- struct ieee80211_sub_if_data *sdata, int oldtype)
-{}
-static inline void ieee80211_debugfs_netdev_init(void)
-{}
-
-static inline void ieee80211_debugfs_netdev_exit(void)
-{}
-#endif
-
-#endif /* __IEEE80211_DEBUGFS_NETDEV_H */
+++ /dev/null
-/*
- * Copyright 2003-2005 Devicescape Software, Inc.
- * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/debugfs.h>
-#include <linux/ieee80211.h>
-#include "ieee80211_i.h"
-#include "debugfs.h"
-#include "debugfs_sta.h"
-#include "sta_info.h"
-
-/* sta attributtes */
-
-#define STA_READ(name, buflen, field, format_string) \
-static ssize_t sta_ ##name## _read(struct file *file, \
- char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- int res; \
- struct sta_info *sta = file->private_data; \
- char buf[buflen]; \
- res = scnprintf(buf, buflen, format_string, sta->field); \
- return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
-}
-#define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n")
-#define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n")
-#define STA_READ_LU(name, field) STA_READ(name, 20, field, "%lu\n")
-#define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n")
-
-#define STA_READ_RATE(name, field) \
-static ssize_t sta_##name##_read(struct file *file, \
- char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- struct sta_info *sta = file->private_data; \
- struct ieee80211_local *local = wdev_priv(sta->dev->ieee80211_ptr);\
- struct ieee80211_hw_mode *mode = local->oper_hw_mode; \
- char buf[20]; \
- int res = scnprintf(buf, sizeof(buf), "%d\n", \
- (sta->field >= 0 && \
- sta->field < mode->num_rates) ? \
- mode->rates[sta->field].rate : -1); \
- return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
-}
-
-#define STA_OPS(name) \
-static const struct file_operations sta_ ##name## _ops = { \
- .read = sta_##name##_read, \
- .open = mac80211_open_file_generic, \
-}
-
-#define STA_FILE(name, field, format) \
- STA_READ_##format(name, field) \
- STA_OPS(name)
-
-STA_FILE(aid, aid, D);
-STA_FILE(dev, dev->name, S);
-STA_FILE(rx_packets, rx_packets, LU);
-STA_FILE(tx_packets, tx_packets, LU);
-STA_FILE(rx_bytes, rx_bytes, LU);
-STA_FILE(tx_bytes, tx_bytes, LU);
-STA_FILE(rx_duplicates, num_duplicates, LU);
-STA_FILE(rx_fragments, rx_fragments, LU);
-STA_FILE(rx_dropped, rx_dropped, LU);
-STA_FILE(tx_fragments, tx_fragments, LU);
-STA_FILE(tx_filtered, tx_filtered_count, LU);
-STA_FILE(txrate, txrate, RATE);
-STA_FILE(last_txrate, last_txrate, RATE);
-STA_FILE(tx_retry_failed, tx_retry_failed, LU);
-STA_FILE(tx_retry_count, tx_retry_count, LU);
-STA_FILE(last_rssi, last_rssi, D);
-STA_FILE(last_signal, last_signal, D);
-STA_FILE(last_noise, last_noise, D);
-STA_FILE(channel_use, channel_use, D);
-STA_FILE(wep_weak_iv_count, wep_weak_iv_count, D);
-
-static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[100];
- struct sta_info *sta = file->private_data;
- int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
- sta->flags & WLAN_STA_AUTH ? "AUTH\n" : "",
- sta->flags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
- sta->flags & WLAN_STA_PS ? "PS\n" : "",
- sta->flags & WLAN_STA_TIM ? "TIM\n" : "",
- sta->flags & WLAN_STA_PERM ? "PERM\n" : "",
- sta->flags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
- sta->flags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
- sta->flags & WLAN_STA_WME ? "WME\n" : "",
- sta->flags & WLAN_STA_WDS ? "WDS\n" : "");
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-STA_OPS(flags);
-
-static ssize_t sta_num_ps_buf_frames_read(struct file *file,
- char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[20];
- struct sta_info *sta = file->private_data;
- int res = scnprintf(buf, sizeof(buf), "%u\n",
- skb_queue_len(&sta->ps_tx_buf));
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-STA_OPS(num_ps_buf_frames);
-
-static ssize_t sta_last_ack_rssi_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[100];
- struct sta_info *sta = file->private_data;
- int res = scnprintf(buf, sizeof(buf), "%d %d %d\n",
- sta->last_ack_rssi[0],
- sta->last_ack_rssi[1],
- sta->last_ack_rssi[2]);
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-STA_OPS(last_ack_rssi);
-
-static ssize_t sta_last_ack_ms_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[20];
- struct sta_info *sta = file->private_data;
- int res = scnprintf(buf, sizeof(buf), "%d\n",
- sta->last_ack ?
- jiffies_to_msecs(jiffies - sta->last_ack) : -1);
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-STA_OPS(last_ack_ms);
-
-static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[20];
- struct sta_info *sta = file->private_data;
- int res = scnprintf(buf, sizeof(buf), "%d\n",
- jiffies_to_msecs(jiffies - sta->last_rx));
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-STA_OPS(inactive_ms);
-
-static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
- int i;
- struct sta_info *sta = file->private_data;
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
- p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
- le16_to_cpu(sta->last_seq_ctrl[i]));
- p += scnprintf(p, sizeof(buf)+buf-p, "\n");
- return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
-}
-STA_OPS(last_seq_ctrl);
-
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
-static ssize_t sta_wme_rx_queue_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
- int i;
- struct sta_info *sta = file->private_data;
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
- p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
- sta->wme_rx_queue[i]);
- p += scnprintf(p, sizeof(buf)+buf-p, "\n");
- return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
-}
-STA_OPS(wme_rx_queue);
-
-static ssize_t sta_wme_tx_queue_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[15*NUM_TX_DATA_QUEUES], *p = buf;
- int i;
- struct sta_info *sta = file->private_data;
- for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
- p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
- sta->wme_tx_queue[i]);
- p += scnprintf(p, sizeof(buf)+buf-p, "\n");
- return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
-}
-STA_OPS(wme_tx_queue);
-#endif
-
-#define DEBUGFS_ADD(name) \
- sta->debugfs.name = debugfs_create_file(#name, 0444, \
- sta->debugfs.dir, sta, &sta_ ##name## _ops);
-
-#define DEBUGFS_DEL(name) \
- debugfs_remove(sta->debugfs.name);\
- sta->debugfs.name = NULL;
-
-
-void ieee80211_sta_debugfs_add(struct sta_info *sta)
-{
- char buf[3*6];
- struct dentry *stations_dir = sta->local->debugfs.stations;
-
- if (!stations_dir)
- return;
-
- sprintf(buf, MAC_FMT, MAC_ARG(sta->addr));
-
- sta->debugfs.dir = debugfs_create_dir(buf, stations_dir);
- if (!sta->debugfs.dir)
- return;
-
- DEBUGFS_ADD(flags);
- DEBUGFS_ADD(num_ps_buf_frames);
- DEBUGFS_ADD(last_ack_rssi);
- DEBUGFS_ADD(last_ack_ms);
- DEBUGFS_ADD(inactive_ms);
- DEBUGFS_ADD(last_seq_ctrl);
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- DEBUGFS_ADD(wme_rx_queue);
- DEBUGFS_ADD(wme_tx_queue);
-#endif
-}
-
-void ieee80211_sta_debugfs_remove(struct sta_info *sta)
-{
- DEBUGFS_DEL(flags);
- DEBUGFS_DEL(num_ps_buf_frames);
- DEBUGFS_DEL(last_ack_rssi);
- DEBUGFS_DEL(last_ack_ms);
- DEBUGFS_DEL(inactive_ms);
- DEBUGFS_DEL(last_seq_ctrl);
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- DEBUGFS_DEL(wme_rx_queue);
- DEBUGFS_DEL(wme_tx_queue);
-#endif
-
- debugfs_remove(sta->debugfs.dir);
- sta->debugfs.dir = NULL;
-}
+++ /dev/null
-#ifndef __MAC80211_DEBUGFS_STA_H
-#define __MAC80211_DEBUGFS_STA_H
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-void ieee80211_sta_debugfs_add(struct sta_info *sta);
-void ieee80211_sta_debugfs_remove(struct sta_info *sta);
-#else
-static inline void ieee80211_sta_debugfs_add(struct sta_info *sta) {}
-static inline void ieee80211_sta_debugfs_remove(struct sta_info *sta) {}
-#endif
-
-#endif /* __MAC80211_DEBUGFS_STA_H */
+++ /dev/null
-/*
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * mac80211 - events
- */
-
-#include <linux/netdevice.h>
-#include <net/iw_handler.h>
-#include "ieee80211_i.h"
-
-/*
- * indicate a failed Michael MIC to userspace; the passed packet
- * (in the variable hdr) must be long enough to extract the TKIP
- * fields like TSC
- */
-void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
- struct ieee80211_hdr *hdr)
-{
- union iwreq_data wrqu;
- char *buf = kmalloc(128, GFP_ATOMIC);
-
- if (buf) {
- /* TODO: needed parameters: count, key type, TSC */
- sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
- "keyid=%d %scast addr=" MAC_FMT ")",
- keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni",
- MAC_ARG(hdr->addr2));
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = strlen(buf);
- wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
- kfree(buf);
- }
-
- /*
- * TODO: re-add support for sending MIC failure indication
- * with all info via nl80211
- */
-}
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <net/mac80211.h>
-#include <net/ieee80211_radiotap.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/etherdevice.h>
-#include <linux/if_arp.h>
-#include <linux/wireless.h>
-#include <linux/rtnetlink.h>
-#include <linux/bitmap.h>
-#include <net/cfg80211.h>
-
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "wep.h"
-#include "wme.h"
-#include "aes_ccm.h"
-#include "ieee80211_led.h"
-#include "cfg.h"
-#include "debugfs.h"
-#include "debugfs_netdev.h"
-
-/*
- * For seeing transmitted packets on monitor interfaces
- * we have a radiotap header too.
- */
-struct ieee80211_tx_status_rtap_hdr {
- struct ieee80211_radiotap_header hdr;
- __le16 tx_flags;
- u8 data_retries;
-} __attribute__ ((packed));
-
-/* common interface routines */
-
-static int header_parse_80211(struct sk_buff *skb, unsigned char *haddr)
-{
- memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
- return ETH_ALEN;
-}
-
-/* must be called under mdev tx lock */
-static void ieee80211_configure_filter(struct ieee80211_local *local)
-{
- unsigned int changed_flags;
- unsigned int new_flags = 0;
-
- if (atomic_read(&local->iff_promiscs))
- new_flags |= FIF_PROMISC_IN_BSS;
-
- if (atomic_read(&local->iff_allmultis))
- new_flags |= FIF_ALLMULTI;
-
- if (local->monitors)
- new_flags |= FIF_CONTROL |
- FIF_OTHER_BSS |
- FIF_BCN_PRBRESP_PROMISC;
-
- changed_flags = local->filter_flags ^ new_flags;
-
- /* be a bit nasty */
- new_flags |= (1<<31);
-
- local->ops->configure_filter(local_to_hw(local),
- changed_flags, &new_flags,
- local->mdev->mc_count,
- local->mdev->mc_list);
-
- WARN_ON(new_flags & (1<<31));
-
- local->filter_flags = new_flags & ~(1<<31);
-}
-
-/* master interface */
-
-static int ieee80211_master_open(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
- int res = -EOPNOTSUPP;
-
- /* we hold the RTNL here so can safely walk the list */
- list_for_each_entry(sdata, &local->interfaces, list) {
- if (sdata->dev != dev && netif_running(sdata->dev)) {
- res = 0;
- break;
- }
- }
- return res;
-}
-
-static int ieee80211_master_stop(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
-
- /* we hold the RTNL here so can safely walk the list */
- list_for_each_entry(sdata, &local->interfaces, list)
- if (sdata->dev != dev && netif_running(sdata->dev))
- dev_close(sdata->dev);
-
- return 0;
-}
-
-static void ieee80211_master_set_multicast_list(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- ieee80211_configure_filter(local);
-}
-
-/* regular interfaces */
-
-static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
-{
- /* FIX: what would be proper limits for MTU?
- * This interface uses 802.3 frames. */
- if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6) {
- printk(KERN_WARNING "%s: invalid MTU %d\n",
- dev->name, new_mtu);
- return -EINVAL;
- }
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- dev->mtu = new_mtu;
- return 0;
-}
-
-static inline int identical_mac_addr_allowed(int type1, int type2)
-{
- return (type1 == IEEE80211_IF_TYPE_MNTR ||
- type2 == IEEE80211_IF_TYPE_MNTR ||
- (type1 == IEEE80211_IF_TYPE_AP &&
- type2 == IEEE80211_IF_TYPE_WDS) ||
- (type1 == IEEE80211_IF_TYPE_WDS &&
- (type2 == IEEE80211_IF_TYPE_WDS ||
- type2 == IEEE80211_IF_TYPE_AP)) ||
- (type1 == IEEE80211_IF_TYPE_AP &&
- type2 == IEEE80211_IF_TYPE_VLAN) ||
- (type1 == IEEE80211_IF_TYPE_VLAN &&
- (type2 == IEEE80211_IF_TYPE_AP ||
- type2 == IEEE80211_IF_TYPE_VLAN)));
-}
-
-static int ieee80211_open(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata, *nsdata;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_if_init_conf conf;
- int res;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- /* we hold the RTNL here so can safely walk the list */
- list_for_each_entry(nsdata, &local->interfaces, list) {
- struct net_device *ndev = nsdata->dev;
-
- if (ndev != dev && ndev != local->mdev && netif_running(ndev) &&
- compare_ether_addr(dev->dev_addr, ndev->dev_addr) == 0) {
- /*
- * check whether it may have the same address
- */
- if (!identical_mac_addr_allowed(sdata->type,
- nsdata->type))
- return -ENOTUNIQ;
-
- /*
- * can only add VLANs to enabled APs
- */
- if (sdata->type == IEEE80211_IF_TYPE_VLAN &&
- nsdata->type == IEEE80211_IF_TYPE_AP &&
- netif_running(nsdata->dev))
- sdata->u.vlan.ap = nsdata;
- }
- }
-
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_WDS:
- if (is_zero_ether_addr(sdata->u.wds.remote_addr))
- return -ENOLINK;
- break;
- case IEEE80211_IF_TYPE_VLAN:
- if (!sdata->u.vlan.ap)
- return -ENOLINK;
- break;
- case IEEE80211_IF_TYPE_AP:
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_MNTR:
- case IEEE80211_IF_TYPE_IBSS:
- /* no special treatment */
- break;
- case IEEE80211_IF_TYPE_INVALID:
- /* cannot happen */
- WARN_ON(1);
- break;
- }
-
- if (local->open_count == 0) {
- res = 0;
- if (local->ops->start)
- res = local->ops->start(local_to_hw(local));
- if (res)
- return res;
- }
-
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_VLAN:
- list_add(&sdata->u.vlan.list, &sdata->u.vlan.ap->u.ap.vlans);
- /* no need to tell driver */
- break;
- case IEEE80211_IF_TYPE_MNTR:
- /* must be before the call to ieee80211_configure_filter */
- local->monitors++;
- if (local->monitors == 1) {
- netif_tx_lock_bh(local->mdev);
- ieee80211_configure_filter(local);
- netif_tx_unlock_bh(local->mdev);
-
- local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
- ieee80211_hw_config(local);
- }
- break;
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- sdata->u.sta.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
- /* fall through */
- default:
- conf.if_id = dev->ifindex;
- conf.type = sdata->type;
- conf.mac_addr = dev->dev_addr;
- res = local->ops->add_interface(local_to_hw(local), &conf);
- if (res && !local->open_count && local->ops->stop)
- local->ops->stop(local_to_hw(local));
- if (res)
- return res;
-
- ieee80211_if_config(dev);
- ieee80211_reset_erp_info(dev);
- ieee80211_enable_keys(sdata);
-
- if (sdata->type == IEEE80211_IF_TYPE_STA &&
- !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
- netif_carrier_off(dev);
- else
- netif_carrier_on(dev);
- }
-
- if (local->open_count == 0) {
- res = dev_open(local->mdev);
- WARN_ON(res);
- tasklet_enable(&local->tx_pending_tasklet);
- tasklet_enable(&local->tasklet);
- }
-
- local->open_count++;
-
- netif_start_queue(dev);
-
- return 0;
-}
-
-static int ieee80211_stop(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_if_init_conf conf;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- netif_stop_queue(dev);
-
- dev_mc_unsync(local->mdev, dev);
-
- /* down all dependent devices, that is VLANs */
- if (sdata->type == IEEE80211_IF_TYPE_AP) {
- struct ieee80211_sub_if_data *vlan, *tmp;
-
- list_for_each_entry_safe(vlan, tmp, &sdata->u.ap.vlans,
- u.vlan.list)
- dev_close(vlan->dev);
- WARN_ON(!list_empty(&sdata->u.ap.vlans));
- }
-
- local->open_count--;
-
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_VLAN:
- list_del(&sdata->u.vlan.list);
- sdata->u.vlan.ap = NULL;
- /* no need to tell driver */
- break;
- case IEEE80211_IF_TYPE_MNTR:
- local->monitors--;
- if (local->monitors == 0) {
- netif_tx_lock_bh(local->mdev);
- ieee80211_configure_filter(local);
- netif_tx_unlock_bh(local->mdev);
-
- local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
- ieee80211_hw_config(local);
- }
- break;
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- sdata->u.sta.state = IEEE80211_DISABLED;
- del_timer_sync(&sdata->u.sta.timer);
- /*
- * When we get here, the interface is marked down.
- * Call synchronize_rcu() to wait for the RX path
- * should it be using the interface and enqueuing
- * frames at this very time on another CPU.
- */
- synchronize_rcu();
- skb_queue_purge(&sdata->u.sta.skb_queue);
-
- if (!local->ops->hw_scan &&
- local->scan_dev == sdata->dev) {
- local->sta_scanning = 0;
- cancel_delayed_work(&local->scan_work);
- }
- flush_workqueue(local->hw.workqueue);
- /* fall through */
- default:
- conf.if_id = dev->ifindex;
- conf.type = sdata->type;
- conf.mac_addr = dev->dev_addr;
- /* disable all keys for as long as this netdev is down */
- ieee80211_disable_keys(sdata);
- local->ops->remove_interface(local_to_hw(local), &conf);
- }
-
- if (local->open_count == 0) {
- if (netif_running(local->mdev))
- dev_close(local->mdev);
-
- if (local->ops->stop)
- local->ops->stop(local_to_hw(local));
-
- tasklet_disable(&local->tx_pending_tasklet);
- tasklet_disable(&local->tasklet);
- }
-
- return 0;
-}
-
-static void ieee80211_set_multicast_list(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int allmulti, promisc, sdata_allmulti, sdata_promisc;
-
- allmulti = !!(dev->flags & IFF_ALLMULTI);
- promisc = !!(dev->flags & IFF_PROMISC);
- sdata_allmulti = sdata->flags & IEEE80211_SDATA_ALLMULTI;
- sdata_promisc = sdata->flags & IEEE80211_SDATA_PROMISC;
-
- if (allmulti != sdata_allmulti) {
- if (dev->flags & IFF_ALLMULTI)
- atomic_inc(&local->iff_allmultis);
- else
- atomic_dec(&local->iff_allmultis);
- sdata->flags ^= IEEE80211_SDATA_ALLMULTI;
- }
-
- if (promisc != sdata_promisc) {
- if (dev->flags & IFF_PROMISC)
- atomic_inc(&local->iff_promiscs);
- else
- atomic_dec(&local->iff_promiscs);
- sdata->flags ^= IEEE80211_SDATA_PROMISC;
- }
-
- dev_mc_sync(local->mdev, dev);
-}
-
-/* Must not be called for mdev */
-void ieee80211_if_setup(struct net_device *dev)
-{
- ether_setup(dev);
- dev->hard_start_xmit = ieee80211_subif_start_xmit;
- dev->wireless_handlers = &ieee80211_iw_handler_def;
- dev->set_multicast_list = ieee80211_set_multicast_list;
- dev->change_mtu = ieee80211_change_mtu;
- dev->open = ieee80211_open;
- dev->stop = ieee80211_stop;
- dev->destructor = ieee80211_if_free;
-}
-
-/* WDS specialties */
-
-int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct sta_info *sta;
-
- if (compare_ether_addr(remote_addr, sdata->u.wds.remote_addr) == 0)
- return 0;
-
- /* Create STA entry for the new peer */
- sta = sta_info_add(local, dev, remote_addr, GFP_KERNEL);
- if (!sta)
- return -ENOMEM;
- sta_info_put(sta);
-
- /* Remove STA entry for the old peer */
- sta = sta_info_get(local, sdata->u.wds.remote_addr);
- if (sta) {
- sta_info_free(sta);
- sta_info_put(sta);
- } else {
- printk(KERN_DEBUG "%s: could not find STA entry for WDS link "
- "peer " MAC_FMT "\n",
- dev->name, MAC_ARG(sdata->u.wds.remote_addr));
- }
-
- /* Update WDS link data */
- memcpy(&sdata->u.wds.remote_addr, remote_addr, ETH_ALEN);
-
- return 0;
-}
-
-/* everything else */
-
-static int __ieee80211_if_config(struct net_device *dev,
- struct sk_buff *beacon,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_if_conf conf;
-
- if (!local->ops->config_interface || !netif_running(dev))
- return 0;
-
- memset(&conf, 0, sizeof(conf));
- conf.type = sdata->type;
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- conf.bssid = sdata->u.sta.bssid;
- conf.ssid = sdata->u.sta.ssid;
- conf.ssid_len = sdata->u.sta.ssid_len;
- } else if (sdata->type == IEEE80211_IF_TYPE_AP) {
- conf.ssid = sdata->u.ap.ssid;
- conf.ssid_len = sdata->u.ap.ssid_len;
- conf.beacon = beacon;
- conf.beacon_control = control;
- }
- return local->ops->config_interface(local_to_hw(local),
- dev->ifindex, &conf);
-}
-
-int ieee80211_if_config(struct net_device *dev)
-{
- return __ieee80211_if_config(dev, NULL, NULL);
-}
-
-int ieee80211_if_config_beacon(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_tx_control control;
- struct sk_buff *skb;
-
- if (!(local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE))
- return 0;
- skb = ieee80211_beacon_get(local_to_hw(local), dev->ifindex, &control);
- if (!skb)
- return -ENOMEM;
- return __ieee80211_if_config(dev, skb, &control);
-}
-
-int ieee80211_hw_config(struct ieee80211_local *local)
-{
- struct ieee80211_hw_mode *mode;
- struct ieee80211_channel *chan;
- int ret = 0;
-
- if (local->sta_scanning) {
- chan = local->scan_channel;
- mode = local->scan_hw_mode;
- } else {
- chan = local->oper_channel;
- mode = local->oper_hw_mode;
- }
-
- local->hw.conf.channel = chan->chan;
- local->hw.conf.channel_val = chan->val;
- if (!local->hw.conf.power_level) {
- local->hw.conf.power_level = chan->power_level;
- } else {
- local->hw.conf.power_level = min(chan->power_level,
- local->hw.conf.power_level);
- }
- local->hw.conf.freq = chan->freq;
- local->hw.conf.phymode = mode->mode;
- local->hw.conf.antenna_max = chan->antenna_max;
- local->hw.conf.chan = chan;
- local->hw.conf.mode = mode;
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "HW CONFIG: channel=%d freq=%d "
- "phymode=%d\n", local->hw.conf.channel, local->hw.conf.freq,
- local->hw.conf.phymode);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
-
- if (local->open_count)
- ret = local->ops->config(local_to_hw(local), &local->hw.conf);
-
- return ret;
-}
-
-void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (local->ops->erp_ie_changed)
- local->ops->erp_ie_changed(local_to_hw(local), changes,
- !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION),
- !(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE));
-}
-
-void ieee80211_reset_erp_info(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- sdata->flags &= ~(IEEE80211_SDATA_USE_PROTECTION |
- IEEE80211_SDATA_SHORT_PREAMBLE);
- ieee80211_erp_info_change_notify(dev,
- IEEE80211_ERP_CHANGE_PROTECTION |
- IEEE80211_ERP_CHANGE_PREAMBLE);
-}
-
-void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_tx_status *saved;
- int tmp;
-
- skb->dev = local->mdev;
- saved = kmalloc(sizeof(struct ieee80211_tx_status), GFP_ATOMIC);
- if (unlikely(!saved)) {
- if (net_ratelimit())
- printk(KERN_WARNING "%s: Not enough memory, "
- "dropping tx status", skb->dev->name);
- /* should be dev_kfree_skb_irq, but due to this function being
- * named _irqsafe instead of just _irq we can't be sure that
- * people won't call it from non-irq contexts */
- dev_kfree_skb_any(skb);
- return;
- }
- memcpy(saved, status, sizeof(struct ieee80211_tx_status));
- /* copy pointer to saved status into skb->cb for use by tasklet */
- memcpy(skb->cb, &saved, sizeof(saved));
-
- skb->pkt_type = IEEE80211_TX_STATUS_MSG;
- skb_queue_tail(status->control.flags & IEEE80211_TXCTL_REQ_TX_STATUS ?
- &local->skb_queue : &local->skb_queue_unreliable, skb);
- tmp = skb_queue_len(&local->skb_queue) +
- skb_queue_len(&local->skb_queue_unreliable);
- while (tmp > IEEE80211_IRQSAFE_QUEUE_LIMIT &&
- (skb = skb_dequeue(&local->skb_queue_unreliable))) {
- memcpy(&saved, skb->cb, sizeof(saved));
- kfree(saved);
- dev_kfree_skb_irq(skb);
- tmp--;
- I802_DEBUG_INC(local->tx_status_drop);
- }
- tasklet_schedule(&local->tasklet);
-}
-EXPORT_SYMBOL(ieee80211_tx_status_irqsafe);
-
-static void ieee80211_tasklet_handler(unsigned long data)
-{
- struct ieee80211_local *local = (struct ieee80211_local *) data;
- struct sk_buff *skb;
- struct ieee80211_rx_status rx_status;
- struct ieee80211_tx_status *tx_status;
-
- while ((skb = skb_dequeue(&local->skb_queue)) ||
- (skb = skb_dequeue(&local->skb_queue_unreliable))) {
- switch (skb->pkt_type) {
- case IEEE80211_RX_MSG:
- /* status is in skb->cb */
- memcpy(&rx_status, skb->cb, sizeof(rx_status));
- /* Clear skb->type in order to not confuse kernel
- * netstack. */
- skb->pkt_type = 0;
- __ieee80211_rx(local_to_hw(local), skb, &rx_status);
- break;
- case IEEE80211_TX_STATUS_MSG:
- /* get pointer to saved status out of skb->cb */
- memcpy(&tx_status, skb->cb, sizeof(tx_status));
- skb->pkt_type = 0;
- ieee80211_tx_status(local_to_hw(local),
- skb, tx_status);
- kfree(tx_status);
- break;
- default: /* should never get here! */
- printk(KERN_ERR "%s: Unknown message type (%d)\n",
- wiphy_name(local->hw.wiphy), skb->pkt_type);
- dev_kfree_skb(skb);
- break;
- }
- }
-}
-
-/* Remove added headers (e.g., QoS control), encryption header/MIC, etc. to
- * make a prepared TX frame (one that has been given to hw) to look like brand
- * new IEEE 802.11 frame that is ready to go through TX processing again.
- * Also, tx_packet_data in cb is restored from tx_control. */
-static void ieee80211_remove_tx_extra(struct ieee80211_local *local,
- struct ieee80211_key *key,
- struct sk_buff *skb,
- struct ieee80211_tx_control *control)
-{
- int hdrlen, iv_len, mic_len;
- struct ieee80211_tx_packet_data *pkt_data;
-
- pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- pkt_data->ifindex = control->ifindex;
- pkt_data->flags = 0;
- if (control->flags & IEEE80211_TXCTL_REQ_TX_STATUS)
- pkt_data->flags |= IEEE80211_TXPD_REQ_TX_STATUS;
- if (control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)
- pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
- if (control->flags & IEEE80211_TXCTL_REQUEUE)
- pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
- pkt_data->queue = control->queue;
-
- hdrlen = ieee80211_get_hdrlen_from_skb(skb);
-
- if (!key)
- goto no_key;
-
- switch (key->conf.alg) {
- case ALG_WEP:
- iv_len = WEP_IV_LEN;
- mic_len = WEP_ICV_LEN;
- break;
- case ALG_TKIP:
- iv_len = TKIP_IV_LEN;
- mic_len = TKIP_ICV_LEN;
- break;
- case ALG_CCMP:
- iv_len = CCMP_HDR_LEN;
- mic_len = CCMP_MIC_LEN;
- break;
- default:
- goto no_key;
- }
-
- if (skb->len >= mic_len &&
- !(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
- skb_trim(skb, skb->len - mic_len);
- if (skb->len >= iv_len && skb->len > hdrlen) {
- memmove(skb->data + iv_len, skb->data, hdrlen);
- skb_pull(skb, iv_len);
- }
-
-no_key:
- {
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc = le16_to_cpu(hdr->frame_control);
- if ((fc & 0x8C) == 0x88) /* QoS Control Field */ {
- fc &= ~IEEE80211_STYPE_QOS_DATA;
- hdr->frame_control = cpu_to_le16(fc);
- memmove(skb->data + 2, skb->data, hdrlen - 2);
- skb_pull(skb, 2);
- }
- }
-}
-
-void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_tx_status *status)
-{
- struct sk_buff *skb2;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_local *local = hw_to_local(hw);
- u16 frag, type;
- struct ieee80211_tx_status_rtap_hdr *rthdr;
- struct ieee80211_sub_if_data *sdata;
- int monitors;
-
- if (!status) {
- printk(KERN_ERR
- "%s: ieee80211_tx_status called with NULL status\n",
- wiphy_name(local->hw.wiphy));
- dev_kfree_skb(skb);
- return;
- }
-
- if (status->excessive_retries) {
- struct sta_info *sta;
- sta = sta_info_get(local, hdr->addr1);
- if (sta) {
- if (sta->flags & WLAN_STA_PS) {
- /* The STA is in power save mode, so assume
- * that this TX packet failed because of that.
- */
- status->excessive_retries = 0;
- status->flags |= IEEE80211_TX_STATUS_TX_FILTERED;
- }
- sta_info_put(sta);
- }
- }
-
- if (status->flags & IEEE80211_TX_STATUS_TX_FILTERED) {
- struct sta_info *sta;
- sta = sta_info_get(local, hdr->addr1);
- if (sta) {
- sta->tx_filtered_count++;
-
- /* Clear the TX filter mask for this STA when sending
- * the next packet. If the STA went to power save mode,
- * this will happen when it is waking up for the next
- * time. */
- sta->clear_dst_mask = 1;
-
- /* TODO: Is the WLAN_STA_PS flag always set here or is
- * the race between RX and TX status causing some
- * packets to be filtered out before 80211.o gets an
- * update for PS status? This seems to be the case, so
- * no changes are likely to be needed. */
- if (sta->flags & WLAN_STA_PS &&
- skb_queue_len(&sta->tx_filtered) <
- STA_MAX_TX_BUFFER) {
- ieee80211_remove_tx_extra(local, sta->key,
- skb,
- &status->control);
- skb_queue_tail(&sta->tx_filtered, skb);
- } else if (!(sta->flags & WLAN_STA_PS) &&
- !(status->control.flags & IEEE80211_TXCTL_REQUEUE)) {
- /* Software retry the packet once */
- status->control.flags |= IEEE80211_TXCTL_REQUEUE;
- ieee80211_remove_tx_extra(local, sta->key,
- skb,
- &status->control);
- dev_queue_xmit(skb);
- } else {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: dropped TX "
- "filtered frame queue_len=%d "
- "PS=%d @%lu\n",
- wiphy_name(local->hw.wiphy),
- skb_queue_len(
- &sta->tx_filtered),
- !!(sta->flags & WLAN_STA_PS),
- jiffies);
- }
- dev_kfree_skb(skb);
- }
- sta_info_put(sta);
- return;
- }
- } else {
- /* FIXME: STUPID to call this with both local and local->mdev */
- rate_control_tx_status(local, local->mdev, skb, status);
- }
-
- ieee80211_led_tx(local, 0);
-
- /* SNMP counters
- * Fragments are passed to low-level drivers as separate skbs, so these
- * are actually fragments, not frames. Update frame counters only for
- * the first fragment of the frame. */
-
- frag = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG;
- type = le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_FTYPE;
-
- if (status->flags & IEEE80211_TX_STATUS_ACK) {
- if (frag == 0) {
- local->dot11TransmittedFrameCount++;
- if (is_multicast_ether_addr(hdr->addr1))
- local->dot11MulticastTransmittedFrameCount++;
- if (status->retry_count > 0)
- local->dot11RetryCount++;
- if (status->retry_count > 1)
- local->dot11MultipleRetryCount++;
- }
-
- /* This counter shall be incremented for an acknowledged MPDU
- * with an individual address in the address 1 field or an MPDU
- * with a multicast address in the address 1 field of type Data
- * or Management. */
- if (!is_multicast_ether_addr(hdr->addr1) ||
- type == IEEE80211_FTYPE_DATA ||
- type == IEEE80211_FTYPE_MGMT)
- local->dot11TransmittedFragmentCount++;
- } else {
- if (frag == 0)
- local->dot11FailedCount++;
- }
-
- /* this was a transmitted frame, but now we want to reuse it */
- skb_orphan(skb);
-
- if (!local->monitors) {
- dev_kfree_skb(skb);
- return;
- }
-
- /* send frame to monitor interfaces now */
-
- if (skb_headroom(skb) < sizeof(*rthdr)) {
- printk(KERN_ERR "ieee80211_tx_status: headroom too small\n");
- dev_kfree_skb(skb);
- return;
- }
-
- rthdr = (struct ieee80211_tx_status_rtap_hdr*)
- skb_push(skb, sizeof(*rthdr));
-
- memset(rthdr, 0, sizeof(*rthdr));
- rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
- rthdr->hdr.it_present =
- cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) |
- (1 << IEEE80211_RADIOTAP_DATA_RETRIES));
-
- if (!(status->flags & IEEE80211_TX_STATUS_ACK) &&
- !is_multicast_ether_addr(hdr->addr1))
- rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL);
-
- if ((status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS) &&
- (status->control.flags & IEEE80211_TXCTL_USE_CTS_PROTECT))
- rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS);
- else if (status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS)
- rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS);
-
- rthdr->data_retries = status->retry_count;
-
- rcu_read_lock();
- monitors = local->monitors;
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- /*
- * Using the monitors counter is possibly racy, but
- * if the value is wrong we simply either clone the skb
- * once too much or forget sending it to one monitor iface
- * The latter case isn't nice but fixing the race is much
- * more complicated.
- */
- if (!monitors || !skb)
- goto out;
-
- if (sdata->type == IEEE80211_IF_TYPE_MNTR) {
- if (!netif_running(sdata->dev))
- continue;
- monitors--;
- if (monitors)
- skb2 = skb_clone(skb, GFP_ATOMIC);
- else
- skb2 = NULL;
- skb->dev = sdata->dev;
- /* XXX: is this sufficient for BPF? */
- skb_set_mac_header(skb, 0);
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- skb->pkt_type = PACKET_OTHERHOST;
- skb->protocol = htons(ETH_P_802_2);
- memset(skb->cb, 0, sizeof(skb->cb));
- netif_rx(skb);
- skb = skb2;
- }
- }
- out:
- rcu_read_unlock();
- if (skb)
- dev_kfree_skb(skb);
-}
-EXPORT_SYMBOL(ieee80211_tx_status);
-
-struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
- const struct ieee80211_ops *ops)
-{
- struct net_device *mdev;
- struct ieee80211_local *local;
- struct ieee80211_sub_if_data *sdata;
- int priv_size;
- struct wiphy *wiphy;
-
- /* Ensure 32-byte alignment of our private data and hw private data.
- * We use the wiphy priv data for both our ieee80211_local and for
- * the driver's private data
- *
- * In memory it'll be like this:
- *
- * +-------------------------+
- * | struct wiphy |
- * +-------------------------+
- * | struct ieee80211_local |
- * +-------------------------+
- * | driver's private data |
- * +-------------------------+
- *
- */
- priv_size = ((sizeof(struct ieee80211_local) +
- NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST) +
- priv_data_len;
-
- wiphy = wiphy_new(&mac80211_config_ops, priv_size);
-
- if (!wiphy)
- return NULL;
-
- wiphy->privid = mac80211_wiphy_privid;
-
- local = wiphy_priv(wiphy);
- local->hw.wiphy = wiphy;
-
- local->hw.priv = (char *)local +
- ((sizeof(struct ieee80211_local) +
- NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
-
- BUG_ON(!ops->tx);
- BUG_ON(!ops->start);
- BUG_ON(!ops->stop);
- BUG_ON(!ops->config);
- BUG_ON(!ops->add_interface);
- BUG_ON(!ops->remove_interface);
- BUG_ON(!ops->configure_filter);
- local->ops = ops;
-
- /* for now, mdev needs sub_if_data :/ */
- mdev = alloc_netdev(sizeof(struct ieee80211_sub_if_data),
- "wmaster%d", ether_setup);
- if (!mdev) {
- wiphy_free(wiphy);
- return NULL;
- }
-
- sdata = IEEE80211_DEV_TO_SUB_IF(mdev);
- mdev->ieee80211_ptr = &sdata->wdev;
- sdata->wdev.wiphy = wiphy;
-
- local->hw.queues = 1; /* default */
-
- local->mdev = mdev;
- local->rx_pre_handlers = ieee80211_rx_pre_handlers;
- local->rx_handlers = ieee80211_rx_handlers;
- local->tx_handlers = ieee80211_tx_handlers;
-
- local->bridge_packets = 1;
-
- local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
- local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
- local->short_retry_limit = 7;
- local->long_retry_limit = 4;
- local->hw.conf.radio_enabled = 1;
-
- local->enabled_modes = ~0;
-
- INIT_LIST_HEAD(&local->modes_list);
-
- INIT_LIST_HEAD(&local->interfaces);
-
- INIT_DELAYED_WORK(&local->scan_work, ieee80211_sta_scan_work);
- ieee80211_rx_bss_list_init(mdev);
-
- sta_info_init(local);
-
- mdev->hard_start_xmit = ieee80211_master_start_xmit;
- mdev->open = ieee80211_master_open;
- mdev->stop = ieee80211_master_stop;
- mdev->type = ARPHRD_IEEE80211;
- mdev->hard_header_parse = header_parse_80211;
- mdev->set_multicast_list = ieee80211_master_set_multicast_list;
-
- sdata->type = IEEE80211_IF_TYPE_AP;
- sdata->dev = mdev;
- sdata->local = local;
- sdata->u.ap.force_unicast_rateidx = -1;
- sdata->u.ap.max_ratectrl_rateidx = -1;
- ieee80211_if_sdata_init(sdata);
- /* no RCU needed since we're still during init phase */
- list_add_tail(&sdata->list, &local->interfaces);
-
- tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
- (unsigned long)local);
- tasklet_disable(&local->tx_pending_tasklet);
-
- tasklet_init(&local->tasklet,
- ieee80211_tasklet_handler,
- (unsigned long) local);
- tasklet_disable(&local->tasklet);
-
- skb_queue_head_init(&local->skb_queue);
- skb_queue_head_init(&local->skb_queue_unreliable);
-
- return local_to_hw(local);
-}
-EXPORT_SYMBOL(ieee80211_alloc_hw);
-
-int ieee80211_register_hw(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- const char *name;
- int result;
-
- result = wiphy_register(local->hw.wiphy);
- if (result < 0)
- return result;
-
- name = wiphy_dev(local->hw.wiphy)->driver->name;
- local->hw.workqueue = create_singlethread_workqueue(name);
- if (!local->hw.workqueue) {
- result = -ENOMEM;
- goto fail_workqueue;
- }
-
- /*
- * The hardware needs headroom for sending the frame,
- * and we need some headroom for passing the frame to monitor
- * interfaces, but never both at the same time.
- */
- local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom,
- sizeof(struct ieee80211_tx_status_rtap_hdr));
-
- debugfs_hw_add(local);
-
- local->hw.conf.beacon_int = 1000;
-
- local->wstats_flags |= local->hw.max_rssi ?
- IW_QUAL_LEVEL_UPDATED : IW_QUAL_LEVEL_INVALID;
- local->wstats_flags |= local->hw.max_signal ?
- IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID;
- local->wstats_flags |= local->hw.max_noise ?
- IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID;
- if (local->hw.max_rssi < 0 || local->hw.max_noise < 0)
- local->wstats_flags |= IW_QUAL_DBM;
-
- result = sta_info_start(local);
- if (result < 0)
- goto fail_sta_info;
-
- rtnl_lock();
- result = dev_alloc_name(local->mdev, local->mdev->name);
- if (result < 0)
- goto fail_dev;
-
- memcpy(local->mdev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
- SET_NETDEV_DEV(local->mdev, wiphy_dev(local->hw.wiphy));
-
- result = register_netdevice(local->mdev);
- if (result < 0)
- goto fail_dev;
-
- ieee80211_debugfs_add_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
- ieee80211_if_set_type(local->mdev, IEEE80211_IF_TYPE_AP);
-
- result = ieee80211_init_rate_ctrl_alg(local, NULL);
- if (result < 0) {
- printk(KERN_DEBUG "%s: Failed to initialize rate control "
- "algorithm\n", wiphy_name(local->hw.wiphy));
- goto fail_rate;
- }
-
- result = ieee80211_wep_init(local);
-
- if (result < 0) {
- printk(KERN_DEBUG "%s: Failed to initialize wep\n",
- wiphy_name(local->hw.wiphy));
- goto fail_wep;
- }
-
- ieee80211_install_qdisc(local->mdev);
-
- /* add one default STA interface */
- result = ieee80211_if_add(local->mdev, "wlan%d", NULL,
- IEEE80211_IF_TYPE_STA);
- if (result)
- printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
- wiphy_name(local->hw.wiphy));
-
- local->reg_state = IEEE80211_DEV_REGISTERED;
- rtnl_unlock();
-
- ieee80211_led_init(local);
-
- return 0;
-
-fail_wep:
- rate_control_deinitialize(local);
-fail_rate:
- ieee80211_debugfs_remove_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
- unregister_netdevice(local->mdev);
-fail_dev:
- rtnl_unlock();
- sta_info_stop(local);
-fail_sta_info:
- debugfs_hw_del(local);
- destroy_workqueue(local->hw.workqueue);
-fail_workqueue:
- wiphy_unregister(local->hw.wiphy);
- return result;
-}
-EXPORT_SYMBOL(ieee80211_register_hw);
-
-int ieee80211_register_hwmode(struct ieee80211_hw *hw,
- struct ieee80211_hw_mode *mode)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_rate *rate;
- int i;
-
- INIT_LIST_HEAD(&mode->list);
- list_add_tail(&mode->list, &local->modes_list);
-
- local->hw_modes |= (1 << mode->mode);
- for (i = 0; i < mode->num_rates; i++) {
- rate = &(mode->rates[i]);
- rate->rate_inv = CHAN_UTIL_RATE_LCM / rate->rate;
- }
- ieee80211_prepare_rates(local, mode);
-
- if (!local->oper_hw_mode) {
- /* Default to this mode */
- local->hw.conf.phymode = mode->mode;
- local->oper_hw_mode = local->scan_hw_mode = mode;
- local->oper_channel = local->scan_channel = &mode->channels[0];
- local->hw.conf.mode = local->oper_hw_mode;
- local->hw.conf.chan = local->oper_channel;
- }
-
- if (!(hw->flags & IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED))
- ieee80211_set_default_regdomain(mode);
-
- return 0;
-}
-EXPORT_SYMBOL(ieee80211_register_hwmode);
-
-void ieee80211_unregister_hw(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata, *tmp;
- int i;
-
- tasklet_kill(&local->tx_pending_tasklet);
- tasklet_kill(&local->tasklet);
-
- rtnl_lock();
-
- BUG_ON(local->reg_state != IEEE80211_DEV_REGISTERED);
-
- local->reg_state = IEEE80211_DEV_UNREGISTERED;
-
- /*
- * At this point, interface list manipulations are fine
- * because the driver cannot be handing us frames any
- * more and the tasklet is killed.
- */
-
- /*
- * First, we remove all non-master interfaces. Do this because they
- * may have bss pointer dependency on the master, and when we free
- * the master these would be freed as well, breaking our list
- * iteration completely.
- */
- list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
- if (sdata->dev == local->mdev)
- continue;
- list_del(&sdata->list);
- __ieee80211_if_del(local, sdata);
- }
-
- /* then, finally, remove the master interface */
- __ieee80211_if_del(local, IEEE80211_DEV_TO_SUB_IF(local->mdev));
-
- rtnl_unlock();
-
- ieee80211_rx_bss_list_deinit(local->mdev);
- ieee80211_clear_tx_pending(local);
- sta_info_stop(local);
- rate_control_deinitialize(local);
- debugfs_hw_del(local);
-
- for (i = 0; i < NUM_IEEE80211_MODES; i++) {
- kfree(local->supp_rates[i]);
- kfree(local->basic_rates[i]);
- }
-
- if (skb_queue_len(&local->skb_queue)
- || skb_queue_len(&local->skb_queue_unreliable))
- printk(KERN_WARNING "%s: skb_queue not empty\n",
- wiphy_name(local->hw.wiphy));
- skb_queue_purge(&local->skb_queue);
- skb_queue_purge(&local->skb_queue_unreliable);
-
- destroy_workqueue(local->hw.workqueue);
- wiphy_unregister(local->hw.wiphy);
- ieee80211_wep_free(local);
- ieee80211_led_exit(local);
-}
-EXPORT_SYMBOL(ieee80211_unregister_hw);
-
-void ieee80211_free_hw(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- ieee80211_if_free(local->mdev);
- wiphy_free(local->hw.wiphy);
-}
-EXPORT_SYMBOL(ieee80211_free_hw);
-
-static int __init ieee80211_init(void)
-{
- struct sk_buff *skb;
- int ret;
-
- BUILD_BUG_ON(sizeof(struct ieee80211_tx_packet_data) > sizeof(skb->cb));
-
- ret = ieee80211_wme_register();
- if (ret) {
- printk(KERN_DEBUG "ieee80211_init: failed to "
- "initialize WME (err=%d)\n", ret);
- return ret;
- }
-
- ieee80211_debugfs_netdev_init();
- ieee80211_regdomain_init();
-
- return 0;
-}
-
-static void __exit ieee80211_exit(void)
-{
- ieee80211_wme_unregister();
- ieee80211_debugfs_netdev_exit();
-}
-
-
-subsys_initcall(ieee80211_init);
-module_exit(ieee80211_exit);
-
-MODULE_DESCRIPTION("IEEE 802.11 subsystem");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * IEEE 802.11 driver (80211.o) -- hostapd interface
- * Copyright 2002-2004, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef IEEE80211_COMMON_H
-#define IEEE80211_COMMON_H
-
-#include <linux/types.h>
-
-/*
- * This is common header information with user space. It is used on all
- * frames sent to wlan#ap interface.
- */
-
-#define IEEE80211_FI_VERSION 0x80211001
-
-struct ieee80211_frame_info {
- __be32 version;
- __be32 length;
- __be64 mactime;
- __be64 hosttime;
- __be32 phytype;
- __be32 channel;
- __be32 datarate;
- __be32 antenna;
- __be32 priority;
- __be32 ssi_type;
- __be32 ssi_signal;
- __be32 ssi_noise;
- __be32 preamble;
- __be32 encoding;
-
- /* Note: this structure is otherwise identical to capture format used
- * in linux-wlan-ng, but this additional field is used to provide meta
- * data about the frame to hostapd. This was the easiest method for
- * providing this information, but this might change in the future. */
- __be32 msg_type;
-} __attribute__ ((packed));
-
-
-enum ieee80211_msg_type {
- ieee80211_msg_normal = 0,
- ieee80211_msg_tx_callback_ack = 1,
- ieee80211_msg_tx_callback_fail = 2,
- /* hole at 3, was ieee80211_msg_passive_scan but unused */
- /* hole at 4, was ieee80211_msg_wep_frame_unknown_key but now unused */
- ieee80211_msg_michael_mic_failure = 5,
- /* hole at 6, was monitor but never sent to userspace */
- ieee80211_msg_sta_not_assoc = 7,
- /* 8 was ieee80211_msg_set_aid_for_sta */
- /* 9 was ieee80211_msg_key_threshold_notification */
- /* 11 was ieee80211_msg_radar */
-};
-
-struct ieee80211_msg_key_notification {
- int tx_rx_count;
- char ifname[IFNAMSIZ];
- u8 addr[ETH_ALEN]; /* ff:ff:ff:ff:ff:ff for broadcast keys */
-};
-
-
-enum ieee80211_phytype {
- ieee80211_phytype_fhss_dot11_97 = 1,
- ieee80211_phytype_dsss_dot11_97 = 2,
- ieee80211_phytype_irbaseband = 3,
- ieee80211_phytype_dsss_dot11_b = 4,
- ieee80211_phytype_pbcc_dot11_b = 5,
- ieee80211_phytype_ofdm_dot11_g = 6,
- ieee80211_phytype_pbcc_dot11_g = 7,
- ieee80211_phytype_ofdm_dot11_a = 8,
-};
-
-enum ieee80211_ssi_type {
- ieee80211_ssi_none = 0,
- ieee80211_ssi_norm = 1, /* normalized, 0-1000 */
- ieee80211_ssi_dbm = 2,
- ieee80211_ssi_raw = 3, /* raw SSI */
-};
-
-struct ieee80211_radar_info {
- int channel;
- int radar;
- int radar_type;
-};
-
-#endif /* IEEE80211_COMMON_H */
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef IEEE80211_I_H
-#define IEEE80211_I_H
-
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/if_ether.h>
-#include <linux/interrupt.h>
-#include <linux/list.h>
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/workqueue.h>
-#include <linux/types.h>
-#include <linux/spinlock.h>
-#include <linux/etherdevice.h>
-#include <net/wireless.h>
-#include "ieee80211_key.h"
-#include "sta_info.h"
-
-/* ieee80211.o internal definitions, etc. These are not included into
- * low-level drivers. */
-
-#ifndef ETH_P_PAE
-#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
-#endif /* ETH_P_PAE */
-
-#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
-
-struct ieee80211_local;
-
-#define BIT(x) (1 << (x))
-
-#define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3)
-
-/* Maximum number of broadcast/multicast frames to buffer when some of the
- * associated stations are using power saving. */
-#define AP_MAX_BC_BUFFER 128
-
-/* Maximum number of frames buffered to all STAs, including multicast frames.
- * Note: increasing this limit increases the potential memory requirement. Each
- * frame can be up to about 2 kB long. */
-#define TOTAL_MAX_TX_BUFFER 512
-
-/* Required encryption head and tailroom */
-#define IEEE80211_ENCRYPT_HEADROOM 8
-#define IEEE80211_ENCRYPT_TAILROOM 12
-
-/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
- * reception of at least three fragmented frames. This limit can be increased
- * by changing this define, at the cost of slower frame reassembly and
- * increased memory use (about 2 kB of RAM per entry). */
-#define IEEE80211_FRAGMENT_MAX 4
-
-struct ieee80211_fragment_entry {
- unsigned long first_frag_time;
- unsigned int seq;
- unsigned int rx_queue;
- unsigned int last_frag;
- unsigned int extra_len;
- struct sk_buff_head skb_list;
- int ccmp; /* Whether fragments were encrypted with CCMP */
- u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
-};
-
-
-struct ieee80211_sta_bss {
- struct list_head list;
- struct ieee80211_sta_bss *hnext;
- atomic_t users;
-
- u8 bssid[ETH_ALEN];
- u8 ssid[IEEE80211_MAX_SSID_LEN];
- size_t ssid_len;
- u16 capability; /* host byte order */
- int hw_mode;
- int channel;
- int freq;
- int rssi, signal, noise;
- u8 *wpa_ie;
- size_t wpa_ie_len;
- u8 *rsn_ie;
- size_t rsn_ie_len;
- u8 *wmm_ie;
- size_t wmm_ie_len;
-#define IEEE80211_MAX_SUPP_RATES 32
- u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
- size_t supp_rates_len;
- int beacon_int;
- u64 timestamp;
-
- int probe_resp;
- unsigned long last_update;
-
- /* during assocation, we save an ERP value from a probe response so
- * that we can feed ERP info to the driver when handling the
- * association completes. these fields probably won't be up-to-date
- * otherwise, you probably don't want to use them. */
- int has_erp_value;
- u8 erp_value;
-};
-
-
-typedef enum {
- TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
-} ieee80211_txrx_result;
-
-/* flags used in struct ieee80211_txrx_data.flags */
-/* whether the MSDU was fragmented */
-#define IEEE80211_TXRXD_FRAGMENTED BIT(0)
-#define IEEE80211_TXRXD_TXUNICAST BIT(1)
-#define IEEE80211_TXRXD_TXPS_BUFFERED BIT(2)
-#define IEEE80211_TXRXD_TXPROBE_LAST_FRAG BIT(3)
-#define IEEE80211_TXRXD_RXIN_SCAN BIT(4)
-/* frame is destined to interface currently processed (incl. multicast frames) */
-#define IEEE80211_TXRXD_RXRA_MATCH BIT(5)
-#define IEEE80211_TXRXD_TX_INJECTED BIT(6)
-struct ieee80211_txrx_data {
- struct sk_buff *skb;
- struct net_device *dev;
- struct ieee80211_local *local;
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
- u16 fc, ethertype;
- struct ieee80211_key *key;
- unsigned int flags;
- union {
- struct {
- struct ieee80211_tx_control *control;
- struct ieee80211_hw_mode *mode;
- struct ieee80211_rate *rate;
- /* use this rate (if set) for last fragment; rate can
- * be set to lower rate for the first fragments, e.g.,
- * when using CTS protection with IEEE 802.11g. */
- struct ieee80211_rate *last_frag_rate;
- int last_frag_hwrate;
-
- /* Extra fragments (in addition to the first fragment
- * in skb) */
- int num_extra_frag;
- struct sk_buff **extra_frag;
- } tx;
- struct {
- struct ieee80211_rx_status *status;
- int sent_ps_buffered;
- int queue;
- int load;
- u32 tkip_iv32;
- u16 tkip_iv16;
- } rx;
- } u;
-};
-
-/* flags used in struct ieee80211_tx_packet_data.flags */
-#define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
-#define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
-#define IEEE80211_TXPD_REQUEUE BIT(2)
-/* Stored in sk_buff->cb */
-struct ieee80211_tx_packet_data {
- int ifindex;
- unsigned long jiffies;
- unsigned int flags;
- u8 queue;
-};
-
-struct ieee80211_tx_stored_packet {
- struct ieee80211_tx_control control;
- struct sk_buff *skb;
- int num_extra_frag;
- struct sk_buff **extra_frag;
- int last_frag_rateidx;
- int last_frag_hwrate;
- struct ieee80211_rate *last_frag_rate;
- unsigned int last_frag_rate_ctrl_probe;
-};
-
-typedef ieee80211_txrx_result (*ieee80211_tx_handler)
-(struct ieee80211_txrx_data *tx);
-
-typedef ieee80211_txrx_result (*ieee80211_rx_handler)
-(struct ieee80211_txrx_data *rx);
-
-struct ieee80211_if_ap {
- u8 *beacon_head, *beacon_tail;
- int beacon_head_len, beacon_tail_len;
-
- struct list_head vlans;
-
- u8 ssid[IEEE80211_MAX_SSID_LEN];
- size_t ssid_len;
-
- /* yes, this looks ugly, but guarantees that we can later use
- * bitmap_empty :)
- * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
- u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
- atomic_t num_sta_ps; /* number of stations in PS mode */
- struct sk_buff_head ps_bc_buf;
- int dtim_period, dtim_count;
- int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
- int max_ratectrl_rateidx; /* max TX rateidx for rate control */
- int num_beacons; /* number of TXed beacon frames for this BSS */
-};
-
-struct ieee80211_if_wds {
- u8 remote_addr[ETH_ALEN];
- struct sta_info *sta;
-};
-
-struct ieee80211_if_vlan {
- struct ieee80211_sub_if_data *ap;
- struct list_head list;
-};
-
-/* flags used in struct ieee80211_if_sta.flags */
-#define IEEE80211_STA_SSID_SET BIT(0)
-#define IEEE80211_STA_BSSID_SET BIT(1)
-#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
-#define IEEE80211_STA_AUTHENTICATED BIT(3)
-#define IEEE80211_STA_ASSOCIATED BIT(4)
-#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
-#define IEEE80211_STA_CREATE_IBSS BIT(6)
-#define IEEE80211_STA_MIXED_CELL BIT(7)
-#define IEEE80211_STA_WMM_ENABLED BIT(8)
-#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
-#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
-#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
-struct ieee80211_if_sta {
- enum {
- IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
- IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
- IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
- } state;
- struct timer_list timer;
- struct work_struct work;
- u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
- u8 ssid[IEEE80211_MAX_SSID_LEN];
- size_t ssid_len;
- u16 aid;
- u16 ap_capab, capab;
- u8 *extra_ie; /* to be added to the end of AssocReq */
- size_t extra_ie_len;
-
- /* The last AssocReq/Resp IEs */
- u8 *assocreq_ies, *assocresp_ies;
- size_t assocreq_ies_len, assocresp_ies_len;
-
- int auth_tries, assoc_tries;
-
- unsigned int flags;
-#define IEEE80211_STA_REQ_SCAN 0
-#define IEEE80211_STA_REQ_AUTH 1
-#define IEEE80211_STA_REQ_RUN 2
- unsigned long request;
- struct sk_buff_head skb_queue;
-
- int key_management_enabled;
- unsigned long last_probe;
-
-#define IEEE80211_AUTH_ALG_OPEN BIT(0)
-#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
-#define IEEE80211_AUTH_ALG_LEAP BIT(2)
- unsigned int auth_algs; /* bitfield of allowed auth algs */
- int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
- int auth_transaction;
-
- unsigned long ibss_join_req;
- struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
- u32 supp_rates_bits;
-
- int wmm_last_param_set;
-};
-
-
-/* flags used in struct ieee80211_sub_if_data.flags */
-#define IEEE80211_SDATA_ALLMULTI BIT(0)
-#define IEEE80211_SDATA_PROMISC BIT(1)
-#define IEEE80211_SDATA_USE_PROTECTION BIT(2) /* CTS protect ERP frames */
-/* use short preamble with IEEE 802.11b: this flag is set when the AP or beacon
- * generator reports that there are no present stations that cannot support short
- * preambles */
-#define IEEE80211_SDATA_SHORT_PREAMBLE BIT(3)
-#define IEEE80211_SDATA_USERSPACE_MLME BIT(4)
-struct ieee80211_sub_if_data {
- struct list_head list;
- enum ieee80211_if_types type;
-
- struct wireless_dev wdev;
-
- /* keys */
- struct list_head key_list;
-
- struct net_device *dev;
- struct ieee80211_local *local;
-
- unsigned int flags;
-
- int drop_unencrypted;
- int eapol; /* 0 = process EAPOL frames as normal data frames,
- * 1 = send EAPOL frames through wlan#ap to hostapd
- * (default) */
- int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized
- * port */
-
- u16 sequence;
-
- /* Fragment table for host-based reassembly */
- struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
- unsigned int fragment_next;
-
-#define NUM_DEFAULT_KEYS 4
- struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
- struct ieee80211_key *default_key;
-
- struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
-
- union {
- struct ieee80211_if_ap ap;
- struct ieee80211_if_wds wds;
- struct ieee80211_if_vlan vlan;
- struct ieee80211_if_sta sta;
- } u;
- int channel_use;
- int channel_use_raw;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct dentry *debugfsdir;
- union {
- struct {
- struct dentry *channel_use;
- struct dentry *drop_unencrypted;
- struct dentry *eapol;
- struct dentry *ieee8021_x;
- struct dentry *state;
- struct dentry *bssid;
- struct dentry *prev_bssid;
- struct dentry *ssid_len;
- struct dentry *aid;
- struct dentry *ap_capab;
- struct dentry *capab;
- struct dentry *extra_ie_len;
- struct dentry *auth_tries;
- struct dentry *assoc_tries;
- struct dentry *auth_algs;
- struct dentry *auth_alg;
- struct dentry *auth_transaction;
- struct dentry *flags;
- } sta;
- struct {
- struct dentry *channel_use;
- struct dentry *drop_unencrypted;
- struct dentry *eapol;
- struct dentry *ieee8021_x;
- struct dentry *num_sta_ps;
- struct dentry *dtim_period;
- struct dentry *dtim_count;
- struct dentry *num_beacons;
- struct dentry *force_unicast_rateidx;
- struct dentry *max_ratectrl_rateidx;
- struct dentry *num_buffered_multicast;
- struct dentry *beacon_head_len;
- struct dentry *beacon_tail_len;
- } ap;
- struct {
- struct dentry *channel_use;
- struct dentry *drop_unencrypted;
- struct dentry *eapol;
- struct dentry *ieee8021_x;
- struct dentry *peer;
- } wds;
- struct {
- struct dentry *channel_use;
- struct dentry *drop_unencrypted;
- struct dentry *eapol;
- struct dentry *ieee8021_x;
- } vlan;
- struct {
- struct dentry *mode;
- } monitor;
- struct dentry *default_key;
- } debugfs;
-#endif
-};
-
-#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
-
-enum {
- IEEE80211_RX_MSG = 1,
- IEEE80211_TX_STATUS_MSG = 2,
-};
-
-struct ieee80211_local {
- /* embed the driver visible part.
- * don't cast (use the static inlines below), but we keep
- * it first anyway so they become a no-op */
- struct ieee80211_hw hw;
-
- const struct ieee80211_ops *ops;
-
- /* List of registered struct ieee80211_hw_mode */
- struct list_head modes_list;
-
- struct net_device *mdev; /* wmaster# - "master" 802.11 device */
- int open_count;
- int monitors;
- unsigned int filter_flags; /* FIF_* */
- struct iw_statistics wstats;
- u8 wstats_flags;
- int tx_headroom; /* required headroom for hardware/radiotap */
-
- enum {
- IEEE80211_DEV_UNINITIALIZED = 0,
- IEEE80211_DEV_REGISTERED,
- IEEE80211_DEV_UNREGISTERED,
- } reg_state;
-
- /* Tasklet and skb queue to process calls from IRQ mode. All frames
- * added to skb_queue will be processed, but frames in
- * skb_queue_unreliable may be dropped if the total length of these
- * queues increases over the limit. */
-#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
- struct tasklet_struct tasklet;
- struct sk_buff_head skb_queue;
- struct sk_buff_head skb_queue_unreliable;
-
- /* Station data structures */
- rwlock_t sta_lock; /* protects STA data structures */
- int num_sta; /* number of stations in sta_list */
- struct list_head sta_list;
- struct sta_info *sta_hash[STA_HASH_SIZE];
- struct timer_list sta_cleanup;
-
- unsigned long state[NUM_TX_DATA_QUEUES];
- struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
- struct tasklet_struct tx_pending_tasklet;
-
- /* number of interfaces with corresponding IFF_ flags */
- atomic_t iff_allmultis, iff_promiscs;
-
- struct rate_control_ref *rate_ctrl;
-
- /* Supported and basic rate filters for different modes. These are
- * pointers to -1 terminated lists and rates in 100 kbps units. */
- int *supp_rates[NUM_IEEE80211_MODES];
- int *basic_rates[NUM_IEEE80211_MODES];
-
- int rts_threshold;
- int fragmentation_threshold;
- int short_retry_limit; /* dot11ShortRetryLimit */
- int long_retry_limit; /* dot11LongRetryLimit */
-
- struct crypto_blkcipher *wep_tx_tfm;
- struct crypto_blkcipher *wep_rx_tfm;
- u32 wep_iv;
-
- int bridge_packets; /* bridge packets between associated stations and
- * deliver multicast frames both back to wireless
- * media and to the local net stack */
-
- ieee80211_rx_handler *rx_pre_handlers;
- ieee80211_rx_handler *rx_handlers;
- ieee80211_tx_handler *tx_handlers;
-
- struct list_head interfaces;
-
- int sta_scanning;
- int scan_channel_idx;
- enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
- unsigned long last_scan_completed;
- struct delayed_work scan_work;
- struct net_device *scan_dev;
- struct ieee80211_channel *oper_channel, *scan_channel;
- struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
- u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
- size_t scan_ssid_len;
- struct list_head sta_bss_list;
- struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
- spinlock_t sta_bss_lock;
-#define IEEE80211_SCAN_MATCH_SSID BIT(0)
-#define IEEE80211_SCAN_WPA_ONLY BIT(1)
-#define IEEE80211_SCAN_EXTRA_INFO BIT(2)
- int scan_flags;
-
- /* SNMP counters */
- /* dot11CountersTable */
- u32 dot11TransmittedFragmentCount;
- u32 dot11MulticastTransmittedFrameCount;
- u32 dot11FailedCount;
- u32 dot11RetryCount;
- u32 dot11MultipleRetryCount;
- u32 dot11FrameDuplicateCount;
- u32 dot11ReceivedFragmentCount;
- u32 dot11MulticastReceivedFrameCount;
- u32 dot11TransmittedFrameCount;
- u32 dot11WEPUndecryptableCount;
-
-#ifdef CONFIG_MAC80211_LEDS
- int tx_led_counter, rx_led_counter;
- struct led_trigger *tx_led, *rx_led, *assoc_led;
- char tx_led_name[32], rx_led_name[32], assoc_led_name[32];
-#endif
-
- u32 channel_use;
- u32 channel_use_raw;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct work_struct sta_debugfs_add;
-#endif
-
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- /* TX/RX handler statistics */
- unsigned int tx_handlers_drop;
- unsigned int tx_handlers_queued;
- unsigned int tx_handlers_drop_unencrypted;
- unsigned int tx_handlers_drop_fragment;
- unsigned int tx_handlers_drop_wep;
- unsigned int tx_handlers_drop_not_assoc;
- unsigned int tx_handlers_drop_unauth_port;
- unsigned int rx_handlers_drop;
- unsigned int rx_handlers_queued;
- unsigned int rx_handlers_drop_nullfunc;
- unsigned int rx_handlers_drop_defrag;
- unsigned int rx_handlers_drop_short;
- unsigned int rx_handlers_drop_passive_scan;
- unsigned int tx_expand_skb_head;
- unsigned int tx_expand_skb_head_cloned;
- unsigned int rx_expand_skb_head;
- unsigned int rx_expand_skb_head2;
- unsigned int rx_handlers_fragments;
- unsigned int tx_status_drop;
- unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
- unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
-#define I802_DEBUG_INC(c) (c)++
-#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
-#define I802_DEBUG_INC(c) do { } while (0)
-#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
-
-
- int total_ps_buffered; /* total number of all buffered unicast and
- * multicast packets for power saving stations
- */
- int wifi_wme_noack_test;
- unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
-
- unsigned int enabled_modes; /* bitfield of allowed modes;
- * (1 << MODE_*) */
- unsigned int hw_modes; /* bitfield of supported hardware modes;
- * (1 << MODE_*) */
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct local_debugfsdentries {
- struct dentry *channel;
- struct dentry *frequency;
- struct dentry *antenna_sel_tx;
- struct dentry *antenna_sel_rx;
- struct dentry *bridge_packets;
- struct dentry *rts_threshold;
- struct dentry *fragmentation_threshold;
- struct dentry *short_retry_limit;
- struct dentry *long_retry_limit;
- struct dentry *total_ps_buffered;
- struct dentry *mode;
- struct dentry *wep_iv;
- struct dentry *modes;
- struct dentry *statistics;
- struct local_debugfsdentries_statsdentries {
- struct dentry *transmitted_fragment_count;
- struct dentry *multicast_transmitted_frame_count;
- struct dentry *failed_count;
- struct dentry *retry_count;
- struct dentry *multiple_retry_count;
- struct dentry *frame_duplicate_count;
- struct dentry *received_fragment_count;
- struct dentry *multicast_received_frame_count;
- struct dentry *transmitted_frame_count;
- struct dentry *wep_undecryptable_count;
- struct dentry *num_scans;
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- struct dentry *tx_handlers_drop;
- struct dentry *tx_handlers_queued;
- struct dentry *tx_handlers_drop_unencrypted;
- struct dentry *tx_handlers_drop_fragment;
- struct dentry *tx_handlers_drop_wep;
- struct dentry *tx_handlers_drop_not_assoc;
- struct dentry *tx_handlers_drop_unauth_port;
- struct dentry *rx_handlers_drop;
- struct dentry *rx_handlers_queued;
- struct dentry *rx_handlers_drop_nullfunc;
- struct dentry *rx_handlers_drop_defrag;
- struct dentry *rx_handlers_drop_short;
- struct dentry *rx_handlers_drop_passive_scan;
- struct dentry *tx_expand_skb_head;
- struct dentry *tx_expand_skb_head_cloned;
- struct dentry *rx_expand_skb_head;
- struct dentry *rx_expand_skb_head2;
- struct dentry *rx_handlers_fragments;
- struct dentry *tx_status_drop;
- struct dentry *wme_tx_queue;
- struct dentry *wme_rx_queue;
-#endif
- struct dentry *dot11ACKFailureCount;
- struct dentry *dot11RTSFailureCount;
- struct dentry *dot11FCSErrorCount;
- struct dentry *dot11RTSSuccessCount;
- } stats;
- struct dentry *stations;
- struct dentry *keys;
- } debugfs;
-#endif
-};
-
-static inline struct ieee80211_local *hw_to_local(
- struct ieee80211_hw *hw)
-{
- return container_of(hw, struct ieee80211_local, hw);
-}
-
-static inline struct ieee80211_hw *local_to_hw(
- struct ieee80211_local *local)
-{
- return &local->hw;
-}
-
-enum ieee80211_link_state_t {
- IEEE80211_LINK_STATE_XOFF = 0,
- IEEE80211_LINK_STATE_PENDING,
-};
-
-struct sta_attribute {
- struct attribute attr;
- ssize_t (*show)(const struct sta_info *, char *buf);
- ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
-};
-
-static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
-{
- /*
- * This format has been mandated by the IEEE specifications,
- * so this line may not be changed to use the __set_bit() format.
- */
- bss->tim[aid / 8] |= (1 << (aid % 8));
-}
-
-static inline void bss_tim_set(struct ieee80211_local *local,
- struct ieee80211_if_ap *bss, u16 aid)
-{
- read_lock_bh(&local->sta_lock);
- __bss_tim_set(bss, aid);
- read_unlock_bh(&local->sta_lock);
-}
-
-static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
-{
- /*
- * This format has been mandated by the IEEE specifications,
- * so this line may not be changed to use the __clear_bit() format.
- */
- bss->tim[aid / 8] &= ~(1 << (aid % 8));
-}
-
-static inline void bss_tim_clear(struct ieee80211_local *local,
- struct ieee80211_if_ap *bss, u16 aid)
-{
- read_lock_bh(&local->sta_lock);
- __bss_tim_clear(bss, aid);
- read_unlock_bh(&local->sta_lock);
-}
-
-/**
- * ieee80211_is_erp_rate - Check if a rate is an ERP rate
- * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
- * @rate: Transmission rate to check, in 100 kbps
- *
- * Check if a given rate is an Extended Rate PHY (ERP) rate.
- */
-static inline int ieee80211_is_erp_rate(int phymode, int rate)
-{
- if (phymode == MODE_IEEE80211G) {
- if (rate != 10 && rate != 20 &&
- rate != 55 && rate != 110)
- return 1;
- }
- return 0;
-}
-
-static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
-{
- return compare_ether_addr(raddr, addr) == 0 ||
- is_broadcast_ether_addr(raddr);
-}
-
-
-/* ieee80211.c */
-int ieee80211_hw_config(struct ieee80211_local *local);
-int ieee80211_if_config(struct net_device *dev);
-int ieee80211_if_config_beacon(struct net_device *dev);
-void ieee80211_prepare_rates(struct ieee80211_local *local,
- struct ieee80211_hw_mode *mode);
-void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
-int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
-void ieee80211_if_setup(struct net_device *dev);
-struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
- int phymode, int hwrate);
-
-/* ieee80211_ioctl.c */
-extern const struct iw_handler_def ieee80211_iw_handler_def;
-
-
-/* Least common multiple of the used rates (in 100 kbps). This is used to
- * calculate rate_inv values for each rate so that only integers are needed. */
-#define CHAN_UTIL_RATE_LCM 95040
-/* 1 usec is 1/8 * (95040/10) = 1188 */
-#define CHAN_UTIL_PER_USEC 1188
-/* Amount of bits to shift the result right to scale the total utilization
- * to values that will not wrap around 32-bit integers. */
-#define CHAN_UTIL_SHIFT 9
-/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
- * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
- * raw value with about 23 should give utilization in 10th of a percentage
- * (1/1000). However, utilization is only estimated and not all intervals
- * between frames etc. are calculated. 18 seems to give numbers that are closer
- * to the real maximum. */
-#define CHAN_UTIL_PER_10MS 18
-#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
-#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
-
-
-/* ieee80211_ioctl.c */
-int ieee80211_set_compression(struct ieee80211_local *local,
- struct net_device *dev, struct sta_info *sta);
-int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
-/* ieee80211_sta.c */
-void ieee80211_sta_timer(unsigned long data);
-void ieee80211_sta_work(struct work_struct *work);
-void ieee80211_sta_scan_work(struct work_struct *work);
-void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_rx_status *rx_status);
-int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
-int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
-int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
-int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
-void ieee80211_sta_req_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta);
-int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
-void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_rx_status *rx_status);
-void ieee80211_rx_bss_list_init(struct net_device *dev);
-void ieee80211_rx_bss_list_deinit(struct net_device *dev);
-int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
-struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
- struct sk_buff *skb, u8 *bssid,
- u8 *addr);
-int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
-int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
-void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes);
-void ieee80211_reset_erp_info(struct net_device *dev);
-
-/* ieee80211_iface.c */
-int ieee80211_if_add(struct net_device *dev, const char *name,
- struct net_device **new_dev, int type);
-void ieee80211_if_set_type(struct net_device *dev, int type);
-void ieee80211_if_reinit(struct net_device *dev);
-void __ieee80211_if_del(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata);
-int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
-void ieee80211_if_free(struct net_device *dev);
-void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
-
-/* regdomain.c */
-void ieee80211_regdomain_init(void);
-void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
-
-/* rx handling */
-extern ieee80211_rx_handler ieee80211_rx_pre_handlers[];
-extern ieee80211_rx_handler ieee80211_rx_handlers[];
-
-/* tx handling */
-extern ieee80211_tx_handler ieee80211_tx_handlers[];
-void ieee80211_clear_tx_pending(struct ieee80211_local *local);
-void ieee80211_tx_pending(unsigned long data);
-int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
-int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
-int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
-
-/* utility functions/constants */
-extern void *mac80211_wiphy_privid; /* for wiphy privid */
-extern const unsigned char rfc1042_header[6];
-extern const unsigned char bridge_tunnel_header[6];
-u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len);
-int ieee80211_is_eapol(const struct sk_buff *skb);
-int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
- int rate, int erp, int short_preamble);
-void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
- struct ieee80211_hdr *hdr);
-
-#endif /* IEEE80211_I_H */
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/kernel.h>
-#include <linux/if_arp.h>
-#include <linux/netdevice.h>
-#include <linux/rtnetlink.h>
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "sta_info.h"
-#include "debugfs_netdev.h"
-
-void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata)
-{
- int i;
-
- /* Default values for sub-interface parameters */
- sdata->drop_unencrypted = 0;
- sdata->eapol = 1;
- for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
- skb_queue_head_init(&sdata->fragments[i].skb_list);
-
- INIT_LIST_HEAD(&sdata->key_list);
-}
-
-static void ieee80211_if_sdata_deinit(struct ieee80211_sub_if_data *sdata)
-{
- int i;
-
- for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) {
- __skb_queue_purge(&sdata->fragments[i].skb_list);
- }
-}
-
-/* Must be called with rtnl lock held. */
-int ieee80211_if_add(struct net_device *dev, const char *name,
- struct net_device **new_dev, int type)
-{
- struct net_device *ndev;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = NULL;
- int ret;
-
- ASSERT_RTNL();
- ndev = alloc_netdev(sizeof(struct ieee80211_sub_if_data),
- name, ieee80211_if_setup);
- if (!ndev)
- return -ENOMEM;
-
- ret = dev_alloc_name(ndev, ndev->name);
- if (ret < 0)
- goto fail;
-
- memcpy(ndev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
- ndev->base_addr = dev->base_addr;
- ndev->irq = dev->irq;
- ndev->mem_start = dev->mem_start;
- ndev->mem_end = dev->mem_end;
- SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy));
-
- sdata = IEEE80211_DEV_TO_SUB_IF(ndev);
- ndev->ieee80211_ptr = &sdata->wdev;
- sdata->wdev.wiphy = local->hw.wiphy;
- sdata->type = IEEE80211_IF_TYPE_AP;
- sdata->dev = ndev;
- sdata->local = local;
- ieee80211_if_sdata_init(sdata);
-
- ret = register_netdevice(ndev);
- if (ret)
- goto fail;
-
- ieee80211_debugfs_add_netdev(sdata);
- ieee80211_if_set_type(ndev, type);
-
- /* we're under RTNL so all this is fine */
- if (unlikely(local->reg_state == IEEE80211_DEV_UNREGISTERED)) {
- __ieee80211_if_del(local, sdata);
- return -ENODEV;
- }
- list_add_tail_rcu(&sdata->list, &local->interfaces);
-
- if (new_dev)
- *new_dev = ndev;
-
- return 0;
-
-fail:
- free_netdev(ndev);
- return ret;
-}
-
-void ieee80211_if_set_type(struct net_device *dev, int type)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int oldtype = sdata->type;
-
- /*
- * We need to call this function on the master interface
- * which already has a hard_start_xmit routine assigned
- * which must not be changed.
- */
- if (dev != sdata->local->mdev)
- dev->hard_start_xmit = ieee80211_subif_start_xmit;
-
- /*
- * Called even when register_netdevice fails, it would
- * oops if assigned before initialising the rest.
- */
- dev->uninit = ieee80211_if_reinit;
-
- /* most have no BSS pointer */
- sdata->bss = NULL;
- sdata->type = type;
-
- switch (type) {
- case IEEE80211_IF_TYPE_WDS:
- /* nothing special */
- break;
- case IEEE80211_IF_TYPE_VLAN:
- sdata->u.vlan.ap = NULL;
- break;
- case IEEE80211_IF_TYPE_AP:
- sdata->u.ap.dtim_period = 2;
- sdata->u.ap.force_unicast_rateidx = -1;
- sdata->u.ap.max_ratectrl_rateidx = -1;
- skb_queue_head_init(&sdata->u.ap.ps_bc_buf);
- sdata->bss = &sdata->u.ap;
- INIT_LIST_HEAD(&sdata->u.ap.vlans);
- break;
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS: {
- struct ieee80211_sub_if_data *msdata;
- struct ieee80211_if_sta *ifsta;
-
- ifsta = &sdata->u.sta;
- INIT_WORK(&ifsta->work, ieee80211_sta_work);
- setup_timer(&ifsta->timer, ieee80211_sta_timer,
- (unsigned long) sdata);
- skb_queue_head_init(&ifsta->skb_queue);
-
- ifsta->capab = WLAN_CAPABILITY_ESS;
- ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN |
- IEEE80211_AUTH_ALG_SHARED_KEY;
- ifsta->flags |= IEEE80211_STA_CREATE_IBSS |
- IEEE80211_STA_WMM_ENABLED |
- IEEE80211_STA_AUTO_BSSID_SEL |
- IEEE80211_STA_AUTO_CHANNEL_SEL;
-
- msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev);
- sdata->bss = &msdata->u.ap;
- break;
- }
- case IEEE80211_IF_TYPE_MNTR:
- dev->type = ARPHRD_IEEE80211_RADIOTAP;
- dev->hard_start_xmit = ieee80211_monitor_start_xmit;
- break;
- default:
- printk(KERN_WARNING "%s: %s: Unknown interface type 0x%x",
- dev->name, __FUNCTION__, type);
- }
- ieee80211_debugfs_change_if_type(sdata, oldtype);
-}
-
-/* Must be called with rtnl lock held. */
-void ieee80211_if_reinit(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct sta_info *sta;
- struct sk_buff *skb;
-
- ASSERT_RTNL();
-
- ieee80211_free_keys(sdata);
-
- ieee80211_if_sdata_deinit(sdata);
-
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_INVALID:
- /* cannot happen */
- WARN_ON(1);
- break;
- case IEEE80211_IF_TYPE_AP: {
- /* Remove all virtual interfaces that use this BSS
- * as their sdata->bss */
- struct ieee80211_sub_if_data *tsdata, *n;
-
- list_for_each_entry_safe(tsdata, n, &local->interfaces, list) {
- if (tsdata != sdata && tsdata->bss == &sdata->u.ap) {
- printk(KERN_DEBUG "%s: removing virtual "
- "interface %s because its BSS interface"
- " is being removed\n",
- sdata->dev->name, tsdata->dev->name);
- list_del_rcu(&tsdata->list);
- /*
- * We have lots of time and can afford
- * to sync for each interface
- */
- synchronize_rcu();
- __ieee80211_if_del(local, tsdata);
- }
- }
-
- kfree(sdata->u.ap.beacon_head);
- kfree(sdata->u.ap.beacon_tail);
-
- while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
- local->total_ps_buffered--;
- dev_kfree_skb(skb);
- }
-
- break;
- }
- case IEEE80211_IF_TYPE_WDS:
- sta = sta_info_get(local, sdata->u.wds.remote_addr);
- if (sta) {
- sta_info_free(sta);
- sta_info_put(sta);
- } else {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Someone had deleted my STA "
- "entry for the WDS link\n", dev->name);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- }
- break;
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- kfree(sdata->u.sta.extra_ie);
- sdata->u.sta.extra_ie = NULL;
- kfree(sdata->u.sta.assocreq_ies);
- sdata->u.sta.assocreq_ies = NULL;
- kfree(sdata->u.sta.assocresp_ies);
- sdata->u.sta.assocresp_ies = NULL;
- if (sdata->u.sta.probe_resp) {
- dev_kfree_skb(sdata->u.sta.probe_resp);
- sdata->u.sta.probe_resp = NULL;
- }
-
- break;
- case IEEE80211_IF_TYPE_MNTR:
- dev->type = ARPHRD_ETHER;
- break;
- case IEEE80211_IF_TYPE_VLAN:
- sdata->u.vlan.ap = NULL;
- break;
- }
-
- /* remove all STAs that are bound to this virtual interface */
- sta_info_flush(local, dev);
-
- memset(&sdata->u, 0, sizeof(sdata->u));
- ieee80211_if_sdata_init(sdata);
-}
-
-/* Must be called with rtnl lock held. */
-void __ieee80211_if_del(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata)
-{
- struct net_device *dev = sdata->dev;
-
- ieee80211_debugfs_remove_netdev(sdata);
- unregister_netdevice(dev);
- /* Except master interface, the net_device will be freed by
- * net_device->destructor (i. e. ieee80211_if_free). */
-}
-
-/* Must be called with rtnl lock held. */
-int ieee80211_if_remove(struct net_device *dev, const char *name, int id)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata, *n;
-
- ASSERT_RTNL();
-
- list_for_each_entry_safe(sdata, n, &local->interfaces, list) {
- if ((sdata->type == id || id == -1) &&
- strcmp(name, sdata->dev->name) == 0 &&
- sdata->dev != local->mdev) {
- list_del_rcu(&sdata->list);
- synchronize_rcu();
- __ieee80211_if_del(local, sdata);
- return 0;
- }
- }
- return -ENODEV;
-}
-
-void ieee80211_if_free(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- ieee80211_if_sdata_deinit(sdata);
- free_netdev(dev);
-}
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/etherdevice.h>
-#include <linux/if_arp.h>
-#include <linux/wireless.h>
-#include <net/iw_handler.h>
-#include <asm/uaccess.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "wpa.h"
-#include "aes_ccm.h"
-
-
-static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
- int idx, int alg, int remove,
- int set_tx_key, const u8 *_key,
- size_t key_len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- int ret = 0;
- struct sta_info *sta;
- struct ieee80211_key *key;
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
- printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
- dev->name, idx);
- return -EINVAL;
- }
-
- if (is_broadcast_ether_addr(sta_addr)) {
- sta = NULL;
- key = sdata->keys[idx];
- } else {
- set_tx_key = 0;
- /*
- * According to the standard, the key index of a pairwise
- * key must be zero. However, some AP are broken when it
- * comes to WEP key indices, so we work around this.
- */
- if (idx != 0 && alg != ALG_WEP) {
- printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for "
- "individual key\n", dev->name);
- return -EINVAL;
- }
-
- sta = sta_info_get(local, sta_addr);
- if (!sta) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: set_encrypt - unknown addr "
- MAC_FMT "\n",
- dev->name, MAC_ARG(sta_addr));
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
-
- return -ENOENT;
- }
-
- key = sta->key;
- }
-
- if (remove) {
- ieee80211_key_free(key);
- key = NULL;
- } else {
- /*
- * Automatically frees any old key if present.
- */
- key = ieee80211_key_alloc(sdata, sta, alg, idx, key_len, _key);
- if (!key) {
- ret = -ENOMEM;
- goto err_out;
- }
- }
-
- if (set_tx_key || (!sta && !sdata->default_key && key))
- ieee80211_set_default_key(sdata, idx);
-
- ret = 0;
- err_out:
- if (sta)
- sta_info_put(sta);
- return ret;
-}
-
-static int ieee80211_ioctl_siwgenie(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
- return -EOPNOTSUPP;
-
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
- if (ret)
- return ret;
- sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
- ieee80211_sta_req_auth(dev, &sdata->u.sta);
- return 0;
- }
-
- return -EOPNOTSUPP;
-}
-
-static int ieee80211_ioctl_giwname(struct net_device *dev,
- struct iw_request_info *info,
- char *name, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- switch (local->hw.conf.phymode) {
- case MODE_IEEE80211A:
- strcpy(name, "IEEE 802.11a");
- break;
- case MODE_IEEE80211B:
- strcpy(name, "IEEE 802.11b");
- break;
- case MODE_IEEE80211G:
- strcpy(name, "IEEE 802.11g");
- break;
- default:
- strcpy(name, "IEEE 802.11");
- break;
- }
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_giwrange(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct iw_range *range = (struct iw_range *) extra;
- struct ieee80211_hw_mode *mode = NULL;
- int c = 0;
-
- data->length = sizeof(struct iw_range);
- memset(range, 0, sizeof(struct iw_range));
-
- range->we_version_compiled = WIRELESS_EXT;
- range->we_version_source = 21;
- range->retry_capa = IW_RETRY_LIMIT;
- range->retry_flags = IW_RETRY_LIMIT;
- range->min_retry = 0;
- range->max_retry = 255;
- range->min_rts = 0;
- range->max_rts = 2347;
- range->min_frag = 256;
- range->max_frag = 2346;
-
- range->encoding_size[0] = 5;
- range->encoding_size[1] = 13;
- range->num_encoding_sizes = 2;
- range->max_encoding_tokens = NUM_DEFAULT_KEYS;
-
- range->max_qual.qual = local->hw.max_signal;
- range->max_qual.level = local->hw.max_rssi;
- range->max_qual.noise = local->hw.max_noise;
- range->max_qual.updated = local->wstats_flags;
-
- range->avg_qual.qual = local->hw.max_signal/2;
- range->avg_qual.level = 0;
- range->avg_qual.noise = 0;
- range->avg_qual.updated = local->wstats_flags;
-
- range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
- IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
-
- list_for_each_entry(mode, &local->modes_list, list) {
- int i = 0;
-
- if (!(local->enabled_modes & (1 << mode->mode)) ||
- (local->hw_modes & local->enabled_modes &
- (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
- continue;
-
- while (i < mode->num_channels && c < IW_MAX_FREQUENCIES) {
- struct ieee80211_channel *chan = &mode->channels[i];
-
- if (chan->flag & IEEE80211_CHAN_W_SCAN) {
- range->freq[c].i = chan->chan;
- range->freq[c].m = chan->freq * 100000;
- range->freq[c].e = 1;
- c++;
- }
- i++;
- }
- }
- range->num_channels = c;
- range->num_frequency = c;
-
- IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
- IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
- IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
- IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_siwmode(struct net_device *dev,
- struct iw_request_info *info,
- __u32 *mode, char *extra)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int type;
-
- if (sdata->type == IEEE80211_IF_TYPE_VLAN)
- return -EOPNOTSUPP;
-
- switch (*mode) {
- case IW_MODE_INFRA:
- type = IEEE80211_IF_TYPE_STA;
- break;
- case IW_MODE_ADHOC:
- type = IEEE80211_IF_TYPE_IBSS;
- break;
- case IW_MODE_MONITOR:
- type = IEEE80211_IF_TYPE_MNTR;
- break;
- default:
- return -EINVAL;
- }
-
- if (type == sdata->type)
- return 0;
- if (netif_running(dev))
- return -EBUSY;
-
- ieee80211_if_reinit(dev);
- ieee80211_if_set_type(dev, type);
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_giwmode(struct net_device *dev,
- struct iw_request_info *info,
- __u32 *mode, char *extra)
-{
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_AP:
- *mode = IW_MODE_MASTER;
- break;
- case IEEE80211_IF_TYPE_STA:
- *mode = IW_MODE_INFRA;
- break;
- case IEEE80211_IF_TYPE_IBSS:
- *mode = IW_MODE_ADHOC;
- break;
- case IEEE80211_IF_TYPE_MNTR:
- *mode = IW_MODE_MONITOR;
- break;
- case IEEE80211_IF_TYPE_WDS:
- *mode = IW_MODE_REPEAT;
- break;
- case IEEE80211_IF_TYPE_VLAN:
- *mode = IW_MODE_SECOND; /* FIXME */
- break;
- default:
- *mode = IW_MODE_AUTO;
- break;
- }
- return 0;
-}
-
-int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq)
-{
- struct ieee80211_hw_mode *mode;
- int c, set = 0;
- int ret = -EINVAL;
-
- list_for_each_entry(mode, &local->modes_list, list) {
- if (!(local->enabled_modes & (1 << mode->mode)))
- continue;
- for (c = 0; c < mode->num_channels; c++) {
- struct ieee80211_channel *chan = &mode->channels[c];
- if (chan->flag & IEEE80211_CHAN_W_SCAN &&
- ((chan->chan == channel) || (chan->freq == freq))) {
- local->oper_channel = chan;
- local->oper_hw_mode = mode;
- set++;
- }
- }
- }
-
- if (set) {
- if (local->sta_scanning)
- ret = 0;
- else
- ret = ieee80211_hw_config(local);
-
- rate_control_clear(local);
- }
-
- return ret;
-}
-
-static int ieee80211_ioctl_siwfreq(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_freq *freq, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->type == IEEE80211_IF_TYPE_STA)
- sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
-
- /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
- if (freq->e == 0) {
- if (freq->m < 0) {
- if (sdata->type == IEEE80211_IF_TYPE_STA)
- sdata->u.sta.flags |=
- IEEE80211_STA_AUTO_CHANNEL_SEL;
- return 0;
- } else
- return ieee80211_set_channel(local, freq->m, -1);
- } else {
- int i, div = 1000000;
- for (i = 0; i < freq->e; i++)
- div /= 10;
- if (div > 0)
- return ieee80211_set_channel(local, -1, freq->m / div);
- else
- return -EINVAL;
- }
-}
-
-
-static int ieee80211_ioctl_giwfreq(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_freq *freq, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- /* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level
- * driver for the current channel with firmware-based management */
-
- freq->m = local->hw.conf.freq;
- freq->e = 6;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_siwessid(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *ssid)
-{
- struct ieee80211_sub_if_data *sdata;
- size_t len = data->length;
-
- /* iwconfig uses nul termination in SSID.. */
- if (len > 0 && ssid[len - 1] == '\0')
- len--;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- int ret;
- if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
- if (len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
- memcpy(sdata->u.sta.ssid, ssid, len);
- sdata->u.sta.ssid_len = len;
- return 0;
- }
- if (data->flags)
- sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
- else
- sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
- ret = ieee80211_sta_set_ssid(dev, ssid, len);
- if (ret)
- return ret;
- ieee80211_sta_req_auth(dev, &sdata->u.sta);
- return 0;
- }
-
- if (sdata->type == IEEE80211_IF_TYPE_AP) {
- memcpy(sdata->u.ap.ssid, ssid, len);
- memset(sdata->u.ap.ssid + len, 0,
- IEEE80211_MAX_SSID_LEN - len);
- sdata->u.ap.ssid_len = len;
- return ieee80211_if_config(dev);
- }
- return -EOPNOTSUPP;
-}
-
-
-static int ieee80211_ioctl_giwessid(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *ssid)
-{
- size_t len;
-
- struct ieee80211_sub_if_data *sdata;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- int res = ieee80211_sta_get_ssid(dev, ssid, &len);
- if (res == 0) {
- data->length = len;
- data->flags = 1;
- } else
- data->flags = 0;
- return res;
- }
-
- if (sdata->type == IEEE80211_IF_TYPE_AP) {
- len = sdata->u.ap.ssid_len;
- if (len > IW_ESSID_MAX_SIZE)
- len = IW_ESSID_MAX_SIZE;
- memcpy(ssid, sdata->u.ap.ssid, len);
- data->length = len;
- data->flags = 1;
- return 0;
- }
- return -EOPNOTSUPP;
-}
-
-
-static int ieee80211_ioctl_siwap(struct net_device *dev,
- struct iw_request_info *info,
- struct sockaddr *ap_addr, char *extra)
-{
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- int ret;
- if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
- memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
- ETH_ALEN);
- return 0;
- }
- if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
- sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
- IEEE80211_STA_AUTO_CHANNEL_SEL;
- else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
- sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
- else
- sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
- ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
- if (ret)
- return ret;
- ieee80211_sta_req_auth(dev, &sdata->u.sta);
- return 0;
- } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
- if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
- ETH_ALEN) == 0)
- return 0;
- return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data);
- }
-
- return -EOPNOTSUPP;
-}
-
-
-static int ieee80211_ioctl_giwap(struct net_device *dev,
- struct iw_request_info *info,
- struct sockaddr *ap_addr, char *extra)
-{
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- ap_addr->sa_family = ARPHRD_ETHER;
- memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
- return 0;
- } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
- ap_addr->sa_family = ARPHRD_ETHER;
- memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
- return 0;
- }
-
- return -EOPNOTSUPP;
-}
-
-
-static int ieee80211_ioctl_siwscan(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- u8 *ssid = NULL;
- size_t ssid_len = 0;
-
- if (!netif_running(dev))
- return -ENETDOWN;
-
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
- ssid = sdata->u.sta.ssid;
- ssid_len = sdata->u.sta.ssid_len;
- }
- break;
- case IEEE80211_IF_TYPE_AP:
- if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
- ssid = sdata->u.ap.ssid;
- ssid_len = sdata->u.ap.ssid_len;
- }
- break;
- default:
- return -EOPNOTSUPP;
- }
-
- return ieee80211_sta_req_scan(dev, ssid, ssid_len);
-}
-
-
-static int ieee80211_ioctl_giwscan(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- int res;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- if (local->sta_scanning)
- return -EAGAIN;
- res = ieee80211_sta_scan_results(dev, extra, data->length);
- if (res >= 0) {
- data->length = res;
- return 0;
- }
- data->length = 0;
- return res;
-}
-
-
-static int ieee80211_ioctl_siwrate(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *rate, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw_mode *mode;
- int i;
- u32 target_rate = rate->value / 100000;
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (!sdata->bss)
- return -ENODEV;
- mode = local->oper_hw_mode;
- /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
- * target_rate = X, rate->fixed = 1 means only rate X
- * target_rate = X, rate->fixed = 0 means all rates <= X */
- sdata->bss->max_ratectrl_rateidx = -1;
- sdata->bss->force_unicast_rateidx = -1;
- if (rate->value < 0)
- return 0;
- for (i=0; i< mode->num_rates; i++) {
- struct ieee80211_rate *rates = &mode->rates[i];
- int this_rate = rates->rate;
-
- if (target_rate == this_rate) {
- sdata->bss->max_ratectrl_rateidx = i;
- if (rate->fixed)
- sdata->bss->force_unicast_rateidx = i;
- break;
- }
- }
- return 0;
-}
-
-static int ieee80211_ioctl_giwrate(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *rate, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA)
- sta = sta_info_get(local, sdata->u.sta.bssid);
- else
- return -EOPNOTSUPP;
- if (!sta)
- return -ENODEV;
- if (sta->txrate < local->oper_hw_mode->num_rates)
- rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000;
- else
- rate->value = 0;
- sta_info_put(sta);
- return 0;
-}
-
-static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *data, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- bool need_reconfig = 0;
-
- if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
- return -EINVAL;
- if (data->txpower.flags & IW_TXPOW_RANGE)
- return -EINVAL;
- if (!data->txpower.fixed)
- return -EINVAL;
-
- if (local->hw.conf.power_level != data->txpower.value) {
- local->hw.conf.power_level = data->txpower.value;
- need_reconfig = 1;
- }
- if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
- local->hw.conf.radio_enabled = !(data->txpower.disabled);
- need_reconfig = 1;
- }
- if (need_reconfig) {
- ieee80211_hw_config(local);
- /* The return value of hw_config is not of big interest here,
- * as it doesn't say that it failed because of _this_ config
- * change or something else. Ignore it. */
- }
-
- return 0;
-}
-
-static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *data, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- data->txpower.fixed = 1;
- data->txpower.disabled = !(local->hw.conf.radio_enabled);
- data->txpower.value = local->hw.conf.power_level;
- data->txpower.flags = IW_TXPOW_DBM;
-
- return 0;
-}
-
-static int ieee80211_ioctl_siwrts(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *rts, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (rts->disabled)
- local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
- else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
- return -EINVAL;
- else
- local->rts_threshold = rts->value;
-
- /* If the wlan card performs RTS/CTS in hardware/firmware,
- * configure it here */
-
- if (local->ops->set_rts_threshold)
- local->ops->set_rts_threshold(local_to_hw(local),
- local->rts_threshold);
-
- return 0;
-}
-
-static int ieee80211_ioctl_giwrts(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *rts, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- rts->value = local->rts_threshold;
- rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
- rts->fixed = 1;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_siwfrag(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *frag, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (frag->disabled)
- local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
- else if (frag->value < 256 ||
- frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
- return -EINVAL;
- else {
- /* Fragment length must be even, so strip LSB. */
- local->fragmentation_threshold = frag->value & ~0x1;
- }
-
- /* If the wlan card performs fragmentation in hardware/firmware,
- * configure it here */
-
- if (local->ops->set_frag_threshold)
- local->ops->set_frag_threshold(
- local_to_hw(local),
- local->fragmentation_threshold);
-
- return 0;
-}
-
-static int ieee80211_ioctl_giwfrag(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *frag, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- frag->value = local->fragmentation_threshold;
- frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
- frag->fixed = 1;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_siwretry(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *retry, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (retry->disabled ||
- (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
- return -EINVAL;
-
- if (retry->flags & IW_RETRY_MAX)
- local->long_retry_limit = retry->value;
- else if (retry->flags & IW_RETRY_MIN)
- local->short_retry_limit = retry->value;
- else {
- local->long_retry_limit = retry->value;
- local->short_retry_limit = retry->value;
- }
-
- if (local->ops->set_retry_limit) {
- return local->ops->set_retry_limit(
- local_to_hw(local),
- local->short_retry_limit,
- local->long_retry_limit);
- }
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_giwretry(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *retry, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- retry->disabled = 0;
- if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
- /* first return min value, iwconfig will ask max value
- * later if needed */
- retry->flags |= IW_RETRY_LIMIT;
- retry->value = local->short_retry_limit;
- if (local->long_retry_limit != local->short_retry_limit)
- retry->flags |= IW_RETRY_MIN;
- return 0;
- }
- if (retry->flags & IW_RETRY_MAX) {
- retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
- retry->value = local->long_retry_limit;
- }
-
- return 0;
-}
-
-static int ieee80211_ioctl_siwmlme(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct ieee80211_sub_if_data *sdata;
- struct iw_mlme *mlme = (struct iw_mlme *) extra;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
- return -EINVAL;
-
- switch (mlme->cmd) {
- case IW_MLME_DEAUTH:
- /* TODO: mlme->addr.sa_data */
- return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
- case IW_MLME_DISASSOC:
- /* TODO: mlme->addr.sa_data */
- return ieee80211_sta_disassociate(dev, mlme->reason_code);
- default:
- return -EOPNOTSUPP;
- }
-}
-
-
-static int ieee80211_ioctl_siwencode(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *erq, char *keybuf)
-{
- struct ieee80211_sub_if_data *sdata;
- int idx, i, alg = ALG_WEP;
- u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
- int remove = 0;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- idx = erq->flags & IW_ENCODE_INDEX;
- if (idx == 0) {
- if (sdata->default_key)
- for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
- if (sdata->default_key == sdata->keys[i]) {
- idx = i;
- break;
- }
- }
- } else if (idx < 1 || idx > 4)
- return -EINVAL;
- else
- idx--;
-
- if (erq->flags & IW_ENCODE_DISABLED)
- remove = 1;
- else if (erq->length == 0) {
- /* No key data - just set the default TX key index */
- ieee80211_set_default_key(sdata, idx);
- return 0;
- }
-
- return ieee80211_set_encryption(
- dev, bcaddr,
- idx, alg, remove,
- !sdata->default_key,
- keybuf, erq->length);
-}
-
-
-static int ieee80211_ioctl_giwencode(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *erq, char *key)
-{
- struct ieee80211_sub_if_data *sdata;
- int idx, i;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- idx = erq->flags & IW_ENCODE_INDEX;
- if (idx < 1 || idx > 4) {
- idx = -1;
- if (!sdata->default_key)
- idx = 0;
- else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
- if (sdata->default_key == sdata->keys[i]) {
- idx = i;
- break;
- }
- }
- if (idx < 0)
- return -EINVAL;
- } else
- idx--;
-
- erq->flags = idx + 1;
-
- if (!sdata->keys[idx]) {
- erq->length = 0;
- erq->flags |= IW_ENCODE_DISABLED;
- return 0;
- }
-
- memcpy(key, sdata->keys[idx]->conf.key,
- min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
- erq->length = sdata->keys[idx]->conf.keylen;
- erq->flags |= IW_ENCODE_ENABLED;
-
- return 0;
-}
-
-static int ieee80211_ioctl_siwauth(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *data, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int ret = 0;
-
- switch (data->flags & IW_AUTH_INDEX) {
- case IW_AUTH_WPA_VERSION:
- case IW_AUTH_CIPHER_PAIRWISE:
- case IW_AUTH_CIPHER_GROUP:
- case IW_AUTH_WPA_ENABLED:
- case IW_AUTH_RX_UNENCRYPTED_EAPOL:
- break;
- case IW_AUTH_KEY_MGMT:
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- ret = -EINVAL;
- else {
- /*
- * Key management was set by wpa_supplicant,
- * we only need this to associate to a network
- * that has privacy enabled regardless of not
- * having a key.
- */
- sdata->u.sta.key_management_enabled = !!data->value;
- }
- break;
- case IW_AUTH_80211_AUTH_ALG:
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS)
- sdata->u.sta.auth_algs = data->value;
- else
- ret = -EOPNOTSUPP;
- break;
- case IW_AUTH_PRIVACY_INVOKED:
- if (local->ops->set_privacy_invoked)
- ret = local->ops->set_privacy_invoked(
- local_to_hw(local), data->value);
- break;
- default:
- ret = -EOPNOTSUPP;
- break;
- }
- return ret;
-}
-
-/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
-static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct iw_statistics *wstats = &local->wstats;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct sta_info *sta = NULL;
-
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS)
- sta = sta_info_get(local, sdata->u.sta.bssid);
- if (!sta) {
- wstats->discard.fragment = 0;
- wstats->discard.misc = 0;
- wstats->qual.qual = 0;
- wstats->qual.level = 0;
- wstats->qual.noise = 0;
- wstats->qual.updated = IW_QUAL_ALL_INVALID;
- } else {
- wstats->qual.level = sta->last_rssi;
- wstats->qual.qual = sta->last_signal;
- wstats->qual.noise = sta->last_noise;
- wstats->qual.updated = local->wstats_flags;
- sta_info_put(sta);
- }
- return wstats;
-}
-
-static int ieee80211_ioctl_giwauth(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *data, char *extra)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int ret = 0;
-
- switch (data->flags & IW_AUTH_INDEX) {
- case IW_AUTH_80211_AUTH_ALG:
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS)
- data->value = sdata->u.sta.auth_algs;
- else
- ret = -EOPNOTSUPP;
- break;
- default:
- ret = -EOPNOTSUPP;
- break;
- }
- return ret;
-}
-
-
-static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *erq, char *extra)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
- int uninitialized_var(alg), idx, i, remove = 0;
-
- switch (ext->alg) {
- case IW_ENCODE_ALG_NONE:
- remove = 1;
- break;
- case IW_ENCODE_ALG_WEP:
- alg = ALG_WEP;
- break;
- case IW_ENCODE_ALG_TKIP:
- alg = ALG_TKIP;
- break;
- case IW_ENCODE_ALG_CCMP:
- alg = ALG_CCMP;
- break;
- default:
- return -EOPNOTSUPP;
- }
-
- if (erq->flags & IW_ENCODE_DISABLED)
- remove = 1;
-
- idx = erq->flags & IW_ENCODE_INDEX;
- if (idx < 1 || idx > 4) {
- idx = -1;
- if (!sdata->default_key)
- idx = 0;
- else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
- if (sdata->default_key == sdata->keys[i]) {
- idx = i;
- break;
- }
- }
- if (idx < 0)
- return -EINVAL;
- } else
- idx--;
-
- return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
- remove,
- ext->ext_flags &
- IW_ENCODE_EXT_SET_TX_KEY,
- ext->key, ext->key_len);
-}
-
-
-/* Structures to export the Wireless Handlers */
-
-static const iw_handler ieee80211_handler[] =
-{
- (iw_handler) NULL, /* SIOCSIWCOMMIT */
- (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */
- (iw_handler) NULL, /* SIOCSIWNWID */
- (iw_handler) NULL, /* SIOCGIWNWID */
- (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
- (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
- (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */
- (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */
- (iw_handler) NULL, /* SIOCSIWSENS */
- (iw_handler) NULL, /* SIOCGIWSENS */
- (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
- (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */
- (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
- (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
- (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
- (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
- (iw_handler) NULL, /* SIOCSIWSPY */
- (iw_handler) NULL, /* SIOCGIWSPY */
- (iw_handler) NULL, /* SIOCSIWTHRSPY */
- (iw_handler) NULL, /* SIOCGIWTHRSPY */
- (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
- (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
- (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */
- (iw_handler) NULL, /* SIOCGIWAPLIST */
- (iw_handler) ieee80211_ioctl_siwscan, /* SIOCSIWSCAN */
- (iw_handler) ieee80211_ioctl_giwscan, /* SIOCGIWSCAN */
- (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
- (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
- (iw_handler) NULL, /* SIOCSIWNICKN */
- (iw_handler) NULL, /* SIOCGIWNICKN */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */
- (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */
- (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */
- (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */
- (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */
- (iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */
- (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */
- (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */
- (iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */
- (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */
- (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
- (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */
- (iw_handler) NULL, /* SIOCSIWPOWER */
- (iw_handler) NULL, /* SIOCGIWPOWER */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
- (iw_handler) NULL, /* SIOCGIWGENIE */
- (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
- (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
- (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */
- (iw_handler) NULL, /* SIOCGIWENCODEEXT */
- (iw_handler) NULL, /* SIOCSIWPMKSA */
- (iw_handler) NULL, /* -- hole -- */
-};
-
-const struct iw_handler_def ieee80211_iw_handler_def =
-{
- .num_standard = ARRAY_SIZE(ieee80211_handler),
- .standard = (iw_handler *) ieee80211_handler,
- .get_wireless_stats = ieee80211_get_wireless_stats,
-};
+++ /dev/null
-/*
- * Copyright 2002-2004, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef IEEE80211_KEY_H
-#define IEEE80211_KEY_H
-
-#include <linux/types.h>
-#include <linux/list.h>
-#include <linux/crypto.h>
-#include <net/mac80211.h>
-
-/* ALG_TKIP
- * struct ieee80211_key::key is encoded as a 256-bit (32 byte) data block:
- * Temporal Encryption Key (128 bits)
- * Temporal Authenticator Tx MIC Key (64 bits)
- * Temporal Authenticator Rx MIC Key (64 bits)
- */
-
-#define WEP_IV_LEN 4
-#define WEP_ICV_LEN 4
-
-#define ALG_TKIP_KEY_LEN 32
-/* Starting offsets for each key */
-#define ALG_TKIP_TEMP_ENCR_KEY 0
-#define ALG_TKIP_TEMP_AUTH_TX_MIC_KEY 16
-#define ALG_TKIP_TEMP_AUTH_RX_MIC_KEY 24
-#define TKIP_IV_LEN 8
-#define TKIP_ICV_LEN 4
-
-#define ALG_CCMP_KEY_LEN 16
-#define CCMP_HDR_LEN 8
-#define CCMP_MIC_LEN 8
-#define CCMP_TK_LEN 16
-#define CCMP_PN_LEN 6
-
-#define NUM_RX_DATA_QUEUES 17
-
-struct ieee80211_local;
-struct ieee80211_sub_if_data;
-struct sta_info;
-
-#define KEY_FLAG_UPLOADED_TO_HARDWARE (1<<0)
-
-struct ieee80211_key {
- struct ieee80211_local *local;
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
-
- struct list_head list;
-
- unsigned int flags;
-
- union {
- struct {
- /* last used TSC */
- u32 iv32;
- u16 iv16;
- u16 p1k[5];
- int tx_initialized;
-
- /* last received RSC */
- u32 iv32_rx[NUM_RX_DATA_QUEUES];
- u16 iv16_rx[NUM_RX_DATA_QUEUES];
- u16 p1k_rx[NUM_RX_DATA_QUEUES][5];
- int rx_initialized[NUM_RX_DATA_QUEUES];
- } tkip;
- struct {
- u8 tx_pn[6];
- u8 rx_pn[NUM_RX_DATA_QUEUES][6];
- struct crypto_cipher *tfm;
- u32 replays; /* dot11RSNAStatsCCMPReplays */
- /* scratch buffers for virt_to_page() (crypto API) */
-#ifndef AES_BLOCK_LEN
-#define AES_BLOCK_LEN 16
-#endif
- u8 tx_crypto_buf[6 * AES_BLOCK_LEN];
- u8 rx_crypto_buf[6 * AES_BLOCK_LEN];
- } ccmp;
- } u;
-
- /* number of times this key has been used */
- int tx_rx_count;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct {
- struct dentry *stalink;
- struct dentry *dir;
- struct dentry *keylen;
- struct dentry *flags;
- struct dentry *keyidx;
- struct dentry *hw_key_idx;
- struct dentry *tx_rx_count;
- struct dentry *algorithm;
- struct dentry *tx_spec;
- struct dentry *rx_spec;
- struct dentry *replays;
- struct dentry *key;
- struct dentry *ifindex;
- } debugfs;
-#endif
-
- /*
- * key config, must be last because it contains key
- * material as variable length member
- */
- struct ieee80211_key_conf conf;
-};
-
-struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
- struct sta_info *sta,
- enum ieee80211_key_alg alg,
- int idx,
- size_t key_len,
- const u8 *key_data);
-void ieee80211_key_free(struct ieee80211_key *key);
-void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx);
-void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata);
-void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata);
-void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata);
-
-#endif /* IEEE80211_KEY_H */
+++ /dev/null
-/*
- * Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/* just for IFNAMSIZ */
-#include <linux/if.h>
-#include "ieee80211_led.h"
-
-void ieee80211_led_rx(struct ieee80211_local *local)
-{
- if (unlikely(!local->rx_led))
- return;
- if (local->rx_led_counter++ % 2 == 0)
- led_trigger_event(local->rx_led, LED_OFF);
- else
- led_trigger_event(local->rx_led, LED_FULL);
-}
-
-/* q is 1 if a packet was enqueued, 0 if it has been transmitted */
-void ieee80211_led_tx(struct ieee80211_local *local, int q)
-{
- if (unlikely(!local->tx_led))
- return;
- /* not sure how this is supposed to work ... */
- local->tx_led_counter += 2*q-1;
- if (local->tx_led_counter % 2 == 0)
- led_trigger_event(local->tx_led, LED_OFF);
- else
- led_trigger_event(local->tx_led, LED_FULL);
-}
-
-void ieee80211_led_assoc(struct ieee80211_local *local, bool associated)
-{
- if (unlikely(!local->assoc_led))
- return;
- if (associated)
- led_trigger_event(local->assoc_led, LED_FULL);
- else
- led_trigger_event(local->assoc_led, LED_OFF);
-}
-
-void ieee80211_led_init(struct ieee80211_local *local)
-{
- local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
- if (local->rx_led) {
- snprintf(local->rx_led_name, sizeof(local->rx_led_name),
- "%srx", wiphy_name(local->hw.wiphy));
- local->rx_led->name = local->rx_led_name;
- if (led_trigger_register(local->rx_led)) {
- kfree(local->rx_led);
- local->rx_led = NULL;
- }
- }
-
- local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
- if (local->tx_led) {
- snprintf(local->tx_led_name, sizeof(local->tx_led_name),
- "%stx", wiphy_name(local->hw.wiphy));
- local->tx_led->name = local->tx_led_name;
- if (led_trigger_register(local->tx_led)) {
- kfree(local->tx_led);
- local->tx_led = NULL;
- }
- }
-
- local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
- if (local->assoc_led) {
- snprintf(local->assoc_led_name, sizeof(local->assoc_led_name),
- "%sassoc", wiphy_name(local->hw.wiphy));
- local->assoc_led->name = local->assoc_led_name;
- if (led_trigger_register(local->assoc_led)) {
- kfree(local->assoc_led);
- local->assoc_led = NULL;
- }
- }
-}
-
-void ieee80211_led_exit(struct ieee80211_local *local)
-{
- if (local->assoc_led) {
- led_trigger_unregister(local->assoc_led);
- kfree(local->assoc_led);
- }
- if (local->tx_led) {
- led_trigger_unregister(local->tx_led);
- kfree(local->tx_led);
- }
- if (local->rx_led) {
- led_trigger_unregister(local->rx_led);
- kfree(local->rx_led);
- }
-}
-
-char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (local->assoc_led)
- return local->assoc_led_name;
- return NULL;
-}
-EXPORT_SYMBOL(__ieee80211_get_assoc_led_name);
-
-char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (local->tx_led)
- return local->tx_led_name;
- return NULL;
-}
-EXPORT_SYMBOL(__ieee80211_get_tx_led_name);
-
-char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (local->rx_led)
- return local->rx_led_name;
- return NULL;
-}
-EXPORT_SYMBOL(__ieee80211_get_rx_led_name);
+++ /dev/null
-/*
- * Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/list.h>
-#include <linux/spinlock.h>
-#include <linux/leds.h>
-#include "ieee80211_i.h"
-
-#ifdef CONFIG_MAC80211_LEDS
-extern void ieee80211_led_rx(struct ieee80211_local *local);
-extern void ieee80211_led_tx(struct ieee80211_local *local, int q);
-extern void ieee80211_led_assoc(struct ieee80211_local *local,
- bool associated);
-extern void ieee80211_led_init(struct ieee80211_local *local);
-extern void ieee80211_led_exit(struct ieee80211_local *local);
-#else
-static inline void ieee80211_led_rx(struct ieee80211_local *local)
-{
-}
-static inline void ieee80211_led_tx(struct ieee80211_local *local, int q)
-{
-}
-static inline void ieee80211_led_assoc(struct ieee80211_local *local,
- bool associated)
-{
-}
-static inline void ieee80211_led_init(struct ieee80211_local *local)
-{
-}
-static inline void ieee80211_led_exit(struct ieee80211_local *local)
-{
-}
-#endif
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/rtnetlink.h>
-#include "ieee80211_rate.h"
-#include "ieee80211_i.h"
-
-struct rate_control_alg {
- struct list_head list;
- struct rate_control_ops *ops;
-};
-
-static LIST_HEAD(rate_ctrl_algs);
-static DEFINE_MUTEX(rate_ctrl_mutex);
-
-int ieee80211_rate_control_register(struct rate_control_ops *ops)
-{
- struct rate_control_alg *alg;
-
- alg = kzalloc(sizeof(*alg), GFP_KERNEL);
- if (alg == NULL) {
- return -ENOMEM;
- }
- alg->ops = ops;
-
- mutex_lock(&rate_ctrl_mutex);
- list_add_tail(&alg->list, &rate_ctrl_algs);
- mutex_unlock(&rate_ctrl_mutex);
-
- return 0;
-}
-EXPORT_SYMBOL(ieee80211_rate_control_register);
-
-void ieee80211_rate_control_unregister(struct rate_control_ops *ops)
-{
- struct rate_control_alg *alg;
-
- mutex_lock(&rate_ctrl_mutex);
- list_for_each_entry(alg, &rate_ctrl_algs, list) {
- if (alg->ops == ops) {
- list_del(&alg->list);
- break;
- }
- }
- mutex_unlock(&rate_ctrl_mutex);
- kfree(alg);
-}
-EXPORT_SYMBOL(ieee80211_rate_control_unregister);
-
-static struct rate_control_ops *
-ieee80211_try_rate_control_ops_get(const char *name)
-{
- struct rate_control_alg *alg;
- struct rate_control_ops *ops = NULL;
-
- mutex_lock(&rate_ctrl_mutex);
- list_for_each_entry(alg, &rate_ctrl_algs, list) {
- if (!name || !strcmp(alg->ops->name, name))
- if (try_module_get(alg->ops->module)) {
- ops = alg->ops;
- break;
- }
- }
- mutex_unlock(&rate_ctrl_mutex);
- return ops;
-}
-
-/* Get the rate control algorithm. If `name' is NULL, get the first
- * available algorithm. */
-static struct rate_control_ops *
-ieee80211_rate_control_ops_get(const char *name)
-{
- struct rate_control_ops *ops;
-
- ops = ieee80211_try_rate_control_ops_get(name);
- if (!ops) {
- request_module("rc80211_%s", name ? name : "default");
- ops = ieee80211_try_rate_control_ops_get(name);
- }
- return ops;
-}
-
-static void ieee80211_rate_control_ops_put(struct rate_control_ops *ops)
-{
- module_put(ops->module);
-}
-
-struct rate_control_ref *rate_control_alloc(const char *name,
- struct ieee80211_local *local)
-{
- struct rate_control_ref *ref;
-
- ref = kmalloc(sizeof(struct rate_control_ref), GFP_KERNEL);
- if (!ref)
- goto fail_ref;
- kref_init(&ref->kref);
- ref->ops = ieee80211_rate_control_ops_get(name);
- if (!ref->ops)
- goto fail_ops;
- ref->priv = ref->ops->alloc(local);
- if (!ref->priv)
- goto fail_priv;
- return ref;
-
-fail_priv:
- ieee80211_rate_control_ops_put(ref->ops);
-fail_ops:
- kfree(ref);
-fail_ref:
- return NULL;
-}
-
-static void rate_control_release(struct kref *kref)
-{
- struct rate_control_ref *ctrl_ref;
-
- ctrl_ref = container_of(kref, struct rate_control_ref, kref);
- ctrl_ref->ops->free(ctrl_ref->priv);
- ieee80211_rate_control_ops_put(ctrl_ref->ops);
- kfree(ctrl_ref);
-}
-
-struct rate_control_ref *rate_control_get(struct rate_control_ref *ref)
-{
- kref_get(&ref->kref);
- return ref;
-}
-
-void rate_control_put(struct rate_control_ref *ref)
-{
- kref_put(&ref->kref, rate_control_release);
-}
-
-int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
- const char *name)
-{
- struct rate_control_ref *ref, *old;
-
- ASSERT_RTNL();
- if (local->open_count || netif_running(local->mdev))
- return -EBUSY;
-
- ref = rate_control_alloc(name, local);
- if (!ref) {
- printk(KERN_WARNING "%s: Failed to select rate control "
- "algorithm\n", wiphy_name(local->hw.wiphy));
- return -ENOENT;
- }
-
- old = local->rate_ctrl;
- local->rate_ctrl = ref;
- if (old) {
- rate_control_put(old);
- sta_info_flush(local, NULL);
- }
-
- printk(KERN_DEBUG "%s: Selected rate control "
- "algorithm '%s'\n", wiphy_name(local->hw.wiphy),
- ref->ops->name);
-
-
- return 0;
-}
-
-void rate_control_deinitialize(struct ieee80211_local *local)
-{
- struct rate_control_ref *ref;
-
- ref = local->rate_ctrl;
- local->rate_ctrl = NULL;
- rate_control_put(ref);
-}
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef IEEE80211_RATE_H
-#define IEEE80211_RATE_H
-
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/types.h>
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "sta_info.h"
-
-#define RATE_CONTROL_NUM_DOWN 20
-#define RATE_CONTROL_NUM_UP 15
-
-
-struct rate_control_extra {
- /* values from rate_control_get_rate() to the caller: */
- struct ieee80211_rate *probe; /* probe with this rate, or NULL for no
- * probing */
- struct ieee80211_rate *nonerp;
-
- /* parameters from the caller to rate_control_get_rate(): */
- struct ieee80211_hw_mode *mode;
- u16 ethertype;
-};
-
-
-struct rate_control_ops {
- struct module *module;
- const char *name;
- void (*tx_status)(void *priv, struct net_device *dev,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status);
- struct ieee80211_rate *(*get_rate)(void *priv, struct net_device *dev,
- struct sk_buff *skb,
- struct rate_control_extra *extra);
- void (*rate_init)(void *priv, void *priv_sta,
- struct ieee80211_local *local, struct sta_info *sta);
- void (*clear)(void *priv);
-
- void *(*alloc)(struct ieee80211_local *local);
- void (*free)(void *priv);
- void *(*alloc_sta)(void *priv, gfp_t gfp);
- void (*free_sta)(void *priv, void *priv_sta);
-
- int (*add_attrs)(void *priv, struct kobject *kobj);
- void (*remove_attrs)(void *priv, struct kobject *kobj);
- void (*add_sta_debugfs)(void *priv, void *priv_sta,
- struct dentry *dir);
- void (*remove_sta_debugfs)(void *priv, void *priv_sta);
-};
-
-struct rate_control_ref {
- struct rate_control_ops *ops;
- void *priv;
- struct kref kref;
-};
-
-int ieee80211_rate_control_register(struct rate_control_ops *ops);
-void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
-
-/* Get a reference to the rate control algorithm. If `name' is NULL, get the
- * first available algorithm. */
-struct rate_control_ref *rate_control_alloc(const char *name,
- struct ieee80211_local *local);
-struct rate_control_ref *rate_control_get(struct rate_control_ref *ref);
-void rate_control_put(struct rate_control_ref *ref);
-
-static inline void rate_control_tx_status(struct ieee80211_local *local,
- struct net_device *dev,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status)
-{
- struct rate_control_ref *ref = local->rate_ctrl;
- ref->ops->tx_status(ref->priv, dev, skb, status);
-}
-
-
-static inline struct ieee80211_rate *
-rate_control_get_rate(struct ieee80211_local *local, struct net_device *dev,
- struct sk_buff *skb, struct rate_control_extra *extra)
-{
- struct rate_control_ref *ref = local->rate_ctrl;
- return ref->ops->get_rate(ref->priv, dev, skb, extra);
-}
-
-
-static inline void rate_control_rate_init(struct sta_info *sta,
- struct ieee80211_local *local)
-{
- struct rate_control_ref *ref = sta->rate_ctrl;
- ref->ops->rate_init(ref->priv, sta->rate_ctrl_priv, local, sta);
-}
-
-
-static inline void rate_control_clear(struct ieee80211_local *local)
-{
- struct rate_control_ref *ref = local->rate_ctrl;
- ref->ops->clear(ref->priv);
-}
-
-static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
- gfp_t gfp)
-{
- return ref->ops->alloc_sta(ref->priv, gfp);
-}
-
-static inline void rate_control_free_sta(struct rate_control_ref *ref,
- void *priv)
-{
- ref->ops->free_sta(ref->priv, priv);
-}
-
-static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
-{
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct rate_control_ref *ref = sta->rate_ctrl;
- if (sta->debugfs.dir && ref->ops->add_sta_debugfs)
- ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
- sta->debugfs.dir);
-#endif
-}
-
-static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
-{
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct rate_control_ref *ref = sta->rate_ctrl;
- if (ref->ops->remove_sta_debugfs)
- ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
-#endif
-}
-
-
-/* functions for rate control related to a device */
-int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
- const char *name);
-void rate_control_deinitialize(struct ieee80211_local *local);
-
-#endif /* IEEE80211_RATE_H */
+++ /dev/null
-/*
- * BSS client mode implementation
- * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
- * Copyright 2004, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/* TODO:
- * BSS table: use <BSSID,SSID> as the key to support multi-SSID APs
- * order BSS list by RSSI(?) ("quality of AP")
- * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE,
- * SSID)
- */
-#include <linux/delay.h>
-#include <linux/if_ether.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/if_arp.h>
-#include <linux/wireless.h>
-#include <linux/random.h>
-#include <linux/etherdevice.h>
-#include <net/iw_handler.h>
-#include <asm/types.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "ieee80211_led.h"
-
-#define IEEE80211_AUTH_TIMEOUT (HZ / 5)
-#define IEEE80211_AUTH_MAX_TRIES 3
-#define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
-#define IEEE80211_ASSOC_MAX_TRIES 3
-#define IEEE80211_MONITORING_INTERVAL (2 * HZ)
-#define IEEE80211_PROBE_INTERVAL (60 * HZ)
-#define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
-#define IEEE80211_SCAN_INTERVAL (2 * HZ)
-#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ)
-#define IEEE80211_IBSS_JOIN_TIMEOUT (20 * HZ)
-
-#define IEEE80211_PROBE_DELAY (HZ / 33)
-#define IEEE80211_CHANNEL_TIME (HZ / 33)
-#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5)
-#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
-#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
-#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
-
-#define IEEE80211_IBSS_MAX_STA_ENTRIES 128
-
-
-#define IEEE80211_FC(type, stype) cpu_to_le16(type | stype)
-
-#define ERP_INFO_USE_PROTECTION BIT(1)
-
-static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
- u8 *ssid, size_t ssid_len);
-static struct ieee80211_sta_bss *
-ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid);
-static void ieee80211_rx_bss_put(struct net_device *dev,
- struct ieee80211_sta_bss *bss);
-static int ieee80211_sta_find_ibss(struct net_device *dev,
- struct ieee80211_if_sta *ifsta);
-static int ieee80211_sta_wep_configured(struct net_device *dev);
-static int ieee80211_sta_start_scan(struct net_device *dev,
- u8 *ssid, size_t ssid_len);
-static int ieee80211_sta_config_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta);
-
-
-/* Parsed Information Elements */
-struct ieee802_11_elems {
- /* pointers to IEs */
- u8 *ssid;
- u8 *supp_rates;
- u8 *fh_params;
- u8 *ds_params;
- u8 *cf_params;
- u8 *tim;
- u8 *ibss_params;
- u8 *challenge;
- u8 *wpa;
- u8 *rsn;
- u8 *erp_info;
- u8 *ext_supp_rates;
- u8 *wmm_info;
- u8 *wmm_param;
-
- /* length of them, respectively */
- u8 ssid_len;
- u8 supp_rates_len;
- u8 fh_params_len;
- u8 ds_params_len;
- u8 cf_params_len;
- u8 tim_len;
- u8 ibss_params_len;
- u8 challenge_len;
- u8 wpa_len;
- u8 rsn_len;
- u8 erp_info_len;
- u8 ext_supp_rates_len;
- u8 wmm_info_len;
- u8 wmm_param_len;
-};
-
-enum ParseRes { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 };
-
-static enum ParseRes ieee802_11_parse_elems(u8 *start, size_t len,
- struct ieee802_11_elems *elems)
-{
- size_t left = len;
- u8 *pos = start;
- int unknown = 0;
-
- memset(elems, 0, sizeof(*elems));
-
- while (left >= 2) {
- u8 id, elen;
-
- id = *pos++;
- elen = *pos++;
- left -= 2;
-
- if (elen > left) {
-#if 0
- if (net_ratelimit())
- printk(KERN_DEBUG "IEEE 802.11 element parse "
- "failed (id=%d elen=%d left=%d)\n",
- id, elen, left);
-#endif
- return ParseFailed;
- }
-
- switch (id) {
- case WLAN_EID_SSID:
- elems->ssid = pos;
- elems->ssid_len = elen;
- break;
- case WLAN_EID_SUPP_RATES:
- elems->supp_rates = pos;
- elems->supp_rates_len = elen;
- break;
- case WLAN_EID_FH_PARAMS:
- elems->fh_params = pos;
- elems->fh_params_len = elen;
- break;
- case WLAN_EID_DS_PARAMS:
- elems->ds_params = pos;
- elems->ds_params_len = elen;
- break;
- case WLAN_EID_CF_PARAMS:
- elems->cf_params = pos;
- elems->cf_params_len = elen;
- break;
- case WLAN_EID_TIM:
- elems->tim = pos;
- elems->tim_len = elen;
- break;
- case WLAN_EID_IBSS_PARAMS:
- elems->ibss_params = pos;
- elems->ibss_params_len = elen;
- break;
- case WLAN_EID_CHALLENGE:
- elems->challenge = pos;
- elems->challenge_len = elen;
- break;
- case WLAN_EID_WPA:
- if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
- pos[2] == 0xf2) {
- /* Microsoft OUI (00:50:F2) */
- if (pos[3] == 1) {
- /* OUI Type 1 - WPA IE */
- elems->wpa = pos;
- elems->wpa_len = elen;
- } else if (elen >= 5 && pos[3] == 2) {
- if (pos[4] == 0) {
- elems->wmm_info = pos;
- elems->wmm_info_len = elen;
- } else if (pos[4] == 1) {
- elems->wmm_param = pos;
- elems->wmm_param_len = elen;
- }
- }
- }
- break;
- case WLAN_EID_RSN:
- elems->rsn = pos;
- elems->rsn_len = elen;
- break;
- case WLAN_EID_ERP_INFO:
- elems->erp_info = pos;
- elems->erp_info_len = elen;
- break;
- case WLAN_EID_EXT_SUPP_RATES:
- elems->ext_supp_rates = pos;
- elems->ext_supp_rates_len = elen;
- break;
- default:
-#if 0
- printk(KERN_DEBUG "IEEE 802.11 element parse ignored "
- "unknown element (id=%d elen=%d)\n",
- id, elen);
-#endif
- unknown++;
- break;
- }
-
- left -= elen;
- pos += elen;
- }
-
- /* Do not trigger error if left == 1 as Apple Airport base stations
- * send AssocResps that are one spurious byte too long. */
-
- return unknown ? ParseUnknown : ParseOK;
-}
-
-
-
-
-static int ecw2cw(int ecw)
-{
- int cw = 1;
- while (ecw > 0) {
- cw <<= 1;
- ecw--;
- }
- return cw - 1;
-}
-
-static void ieee80211_sta_wmm_params(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- u8 *wmm_param, size_t wmm_param_len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_tx_queue_params params;
- size_t left;
- int count;
- u8 *pos;
-
- if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1)
- return;
- count = wmm_param[6] & 0x0f;
- if (count == ifsta->wmm_last_param_set)
- return;
- ifsta->wmm_last_param_set = count;
-
- pos = wmm_param + 8;
- left = wmm_param_len - 8;
-
- memset(¶ms, 0, sizeof(params));
-
- if (!local->ops->conf_tx)
- return;
-
- local->wmm_acm = 0;
- for (; left >= 4; left -= 4, pos += 4) {
- int aci = (pos[0] >> 5) & 0x03;
- int acm = (pos[0] >> 4) & 0x01;
- int queue;
-
- switch (aci) {
- case 1:
- queue = IEEE80211_TX_QUEUE_DATA3;
- if (acm) {
- local->wmm_acm |= BIT(0) | BIT(3);
- }
- break;
- case 2:
- queue = IEEE80211_TX_QUEUE_DATA1;
- if (acm) {
- local->wmm_acm |= BIT(4) | BIT(5);
- }
- break;
- case 3:
- queue = IEEE80211_TX_QUEUE_DATA0;
- if (acm) {
- local->wmm_acm |= BIT(6) | BIT(7);
- }
- break;
- case 0:
- default:
- queue = IEEE80211_TX_QUEUE_DATA2;
- if (acm) {
- local->wmm_acm |= BIT(1) | BIT(2);
- }
- break;
- }
-
- params.aifs = pos[0] & 0x0f;
- params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
- params.cw_min = ecw2cw(pos[1] & 0x0f);
- /* TXOP is in units of 32 usec; burst_time in 0.1 ms */
- params.burst_time = (pos[2] | (pos[3] << 8)) * 32 / 100;
- printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d "
- "cWmin=%d cWmax=%d burst=%d\n",
- dev->name, queue, aci, acm, params.aifs, params.cw_min,
- params.cw_max, params.burst_time);
- /* TODO: handle ACM (block TX, fallback to next lowest allowed
- * AC for now) */
- if (local->ops->conf_tx(local_to_hw(local), queue, ¶ms)) {
- printk(KERN_DEBUG "%s: failed to set TX queue "
- "parameters for queue %d\n", dev->name, queue);
- }
- }
-}
-
-
-static void ieee80211_handle_erp_ie(struct net_device *dev, u8 erp_value)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- int use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
- int preamble_mode = (erp_value & WLAN_ERP_BARKER_PREAMBLE) != 0;
- u8 changes = 0;
-
- if (use_protection != !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION)) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: CTS protection %s (BSSID="
- MAC_FMT ")\n",
- dev->name,
- use_protection ? "enabled" : "disabled",
- MAC_ARG(ifsta->bssid));
- }
- if (use_protection)
- sdata->flags |= IEEE80211_SDATA_USE_PROTECTION;
- else
- sdata->flags &= ~IEEE80211_SDATA_USE_PROTECTION;
- changes |= IEEE80211_ERP_CHANGE_PROTECTION;
- }
-
- if (preamble_mode != !(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE)) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: switched to %s barker preamble"
- " (BSSID=" MAC_FMT ")\n",
- dev->name,
- (preamble_mode == WLAN_ERP_PREAMBLE_SHORT) ?
- "short" : "long",
- MAC_ARG(ifsta->bssid));
- }
- if (preamble_mode)
- sdata->flags &= ~IEEE80211_SDATA_SHORT_PREAMBLE;
- else
- sdata->flags |= IEEE80211_SDATA_SHORT_PREAMBLE;
- changes |= IEEE80211_ERP_CHANGE_PREAMBLE;
- }
-
- if (changes)
- ieee80211_erp_info_change_notify(dev, changes);
-}
-
-
-static void ieee80211_sta_send_associnfo(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- char *buf;
- size_t len;
- int i;
- union iwreq_data wrqu;
-
- if (!ifsta->assocreq_ies && !ifsta->assocresp_ies)
- return;
-
- buf = kmalloc(50 + 2 * (ifsta->assocreq_ies_len +
- ifsta->assocresp_ies_len), GFP_KERNEL);
- if (!buf)
- return;
-
- len = sprintf(buf, "ASSOCINFO(");
- if (ifsta->assocreq_ies) {
- len += sprintf(buf + len, "ReqIEs=");
- for (i = 0; i < ifsta->assocreq_ies_len; i++) {
- len += sprintf(buf + len, "%02x",
- ifsta->assocreq_ies[i]);
- }
- }
- if (ifsta->assocresp_ies) {
- if (ifsta->assocreq_ies)
- len += sprintf(buf + len, " ");
- len += sprintf(buf + len, "RespIEs=");
- for (i = 0; i < ifsta->assocresp_ies_len; i++) {
- len += sprintf(buf + len, "%02x",
- ifsta->assocresp_ies[i]);
- }
- }
- len += sprintf(buf + len, ")");
-
- if (len > IW_CUSTOM_MAX) {
- len = sprintf(buf, "ASSOCRESPIE=");
- for (i = 0; i < ifsta->assocresp_ies_len; i++) {
- len += sprintf(buf + len, "%02x",
- ifsta->assocresp_ies[i]);
- }
- }
-
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = len;
- wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
-
- kfree(buf);
-}
-
-
-static void ieee80211_set_associated(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- bool assoc)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- union iwreq_data wrqu;
-
- if (!!(ifsta->flags & IEEE80211_STA_ASSOCIATED) == assoc)
- return;
-
- if (assoc) {
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_sta_bss *bss;
-
- ifsta->flags |= IEEE80211_STA_ASSOCIATED;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- return;
-
- bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
- if (bss) {
- if (bss->has_erp_value)
- ieee80211_handle_erp_ie(dev, bss->erp_value);
- ieee80211_rx_bss_put(dev, bss);
- }
-
- netif_carrier_on(dev);
- ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
- memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
- memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN);
- ieee80211_sta_send_associnfo(dev, ifsta);
- } else {
- ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
-
- netif_carrier_off(dev);
- ieee80211_reset_erp_info(dev);
- memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
- }
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
- ifsta->last_probe = jiffies;
- ieee80211_led_assoc(local, assoc);
-}
-
-static void ieee80211_set_disassoc(struct net_device *dev,
- struct ieee80211_if_sta *ifsta, int deauth)
-{
- if (deauth)
- ifsta->auth_tries = 0;
- ifsta->assoc_tries = 0;
- ieee80211_set_associated(dev, ifsta, 0);
-}
-
-static void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
- int encrypt)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_tx_packet_data *pkt_data;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- skb->dev = sdata->local->mdev;
- skb_set_mac_header(skb, 0);
- skb_set_network_header(skb, 0);
- skb_set_transport_header(skb, 0);
-
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
- memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
- pkt_data->ifindex = sdata->dev->ifindex;
- if (!encrypt)
- pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
-
- dev_queue_xmit(skb);
-}
-
-
-static void ieee80211_send_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- int transaction, u8 *extra, size_t extra_len,
- int encrypt)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom +
- sizeof(*mgmt) + 6 + extra_len);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
- "frame\n", dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6);
- memset(mgmt, 0, 24 + 6);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_AUTH);
- if (encrypt)
- mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->u.auth.auth_alg = cpu_to_le16(ifsta->auth_alg);
- mgmt->u.auth.auth_transaction = cpu_to_le16(transaction);
- ifsta->auth_transaction = transaction + 1;
- mgmt->u.auth.status_code = cpu_to_le16(0);
- if (extra)
- memcpy(skb_put(skb, extra_len), extra, extra_len);
-
- ieee80211_sta_tx(dev, skb, encrypt);
-}
-
-
-static void ieee80211_authenticate(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- ifsta->auth_tries++;
- if (ifsta->auth_tries > IEEE80211_AUTH_MAX_TRIES) {
- printk(KERN_DEBUG "%s: authentication with AP " MAC_FMT
- " timed out\n",
- dev->name, MAC_ARG(ifsta->bssid));
- ifsta->state = IEEE80211_DISABLED;
- return;
- }
-
- ifsta->state = IEEE80211_AUTHENTICATE;
- printk(KERN_DEBUG "%s: authenticate with AP " MAC_FMT "\n",
- dev->name, MAC_ARG(ifsta->bssid));
-
- ieee80211_send_auth(dev, ifsta, 1, NULL, 0, 0);
-
- mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
-}
-
-
-static void ieee80211_send_assoc(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw_mode *mode;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u8 *pos, *ies;
- int i, len;
- u16 capab;
- struct ieee80211_sta_bss *bss;
- int wmm = 0;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom +
- sizeof(*mgmt) + 200 + ifsta->extra_ie_len +
- ifsta->ssid_len);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
- "frame\n", dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- mode = local->oper_hw_mode;
- capab = ifsta->capab;
- if (mode->mode == MODE_IEEE80211G) {
- capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME |
- WLAN_CAPABILITY_SHORT_PREAMBLE;
- }
- bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
- if (bss) {
- if (bss->capability & WLAN_CAPABILITY_PRIVACY)
- capab |= WLAN_CAPABILITY_PRIVACY;
- if (bss->wmm_ie) {
- wmm = 1;
- }
- ieee80211_rx_bss_put(dev, bss);
- }
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
-
- if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
- skb_put(skb, 10);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_REASSOC_REQ);
- mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab);
- mgmt->u.reassoc_req.listen_interval = cpu_to_le16(1);
- memcpy(mgmt->u.reassoc_req.current_ap, ifsta->prev_bssid,
- ETH_ALEN);
- } else {
- skb_put(skb, 4);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ASSOC_REQ);
- mgmt->u.assoc_req.capab_info = cpu_to_le16(capab);
- mgmt->u.assoc_req.listen_interval = cpu_to_le16(1);
- }
-
- /* SSID */
- ies = pos = skb_put(skb, 2 + ifsta->ssid_len);
- *pos++ = WLAN_EID_SSID;
- *pos++ = ifsta->ssid_len;
- memcpy(pos, ifsta->ssid, ifsta->ssid_len);
-
- len = mode->num_rates;
- if (len > 8)
- len = 8;
- pos = skb_put(skb, len + 2);
- *pos++ = WLAN_EID_SUPP_RATES;
- *pos++ = len;
- for (i = 0; i < len; i++) {
- int rate = mode->rates[i].rate;
- *pos++ = (u8) (rate / 5);
- }
-
- if (mode->num_rates > len) {
- pos = skb_put(skb, mode->num_rates - len + 2);
- *pos++ = WLAN_EID_EXT_SUPP_RATES;
- *pos++ = mode->num_rates - len;
- for (i = len; i < mode->num_rates; i++) {
- int rate = mode->rates[i].rate;
- *pos++ = (u8) (rate / 5);
- }
- }
-
- if (ifsta->extra_ie) {
- pos = skb_put(skb, ifsta->extra_ie_len);
- memcpy(pos, ifsta->extra_ie, ifsta->extra_ie_len);
- }
-
- if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
- pos = skb_put(skb, 9);
- *pos++ = WLAN_EID_VENDOR_SPECIFIC;
- *pos++ = 7; /* len */
- *pos++ = 0x00; /* Microsoft OUI 00:50:F2 */
- *pos++ = 0x50;
- *pos++ = 0xf2;
- *pos++ = 2; /* WME */
- *pos++ = 0; /* WME info */
- *pos++ = 1; /* WME ver */
- *pos++ = 0;
- }
-
- kfree(ifsta->assocreq_ies);
- ifsta->assocreq_ies_len = (skb->data + skb->len) - ies;
- ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_KERNEL);
- if (ifsta->assocreq_ies)
- memcpy(ifsta->assocreq_ies, ies, ifsta->assocreq_ies_len);
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-static void ieee80211_send_deauth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta, u16 reason)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for deauth "
- "frame\n", dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_DEAUTH);
- skb_put(skb, 2);
- mgmt->u.deauth.reason_code = cpu_to_le16(reason);
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-static void ieee80211_send_disassoc(struct net_device *dev,
- struct ieee80211_if_sta *ifsta, u16 reason)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for disassoc "
- "frame\n", dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_DISASSOC);
- skb_put(skb, 2);
- mgmt->u.disassoc.reason_code = cpu_to_le16(reason);
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-static int ieee80211_privacy_mismatch(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_sta_bss *bss;
- int res = 0;
-
- if (!ifsta || (ifsta->flags & IEEE80211_STA_MIXED_CELL) ||
- ifsta->key_management_enabled)
- return 0;
-
- bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
- if (!bss)
- return 0;
-
- if (ieee80211_sta_wep_configured(dev) !=
- !!(bss->capability & WLAN_CAPABILITY_PRIVACY))
- res = 1;
-
- ieee80211_rx_bss_put(dev, bss);
-
- return res;
-}
-
-
-static void ieee80211_associate(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- ifsta->assoc_tries++;
- if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
- printk(KERN_DEBUG "%s: association with AP " MAC_FMT
- " timed out\n",
- dev->name, MAC_ARG(ifsta->bssid));
- ifsta->state = IEEE80211_DISABLED;
- return;
- }
-
- ifsta->state = IEEE80211_ASSOCIATE;
- printk(KERN_DEBUG "%s: associate with AP " MAC_FMT "\n",
- dev->name, MAC_ARG(ifsta->bssid));
- if (ieee80211_privacy_mismatch(dev, ifsta)) {
- printk(KERN_DEBUG "%s: mismatch in privacy configuration and "
- "mixed-cell disabled - abort association\n", dev->name);
- ifsta->state = IEEE80211_DISABLED;
- return;
- }
-
- ieee80211_send_assoc(dev, ifsta);
-
- mod_timer(&ifsta->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
-}
-
-
-static void ieee80211_associated(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- int disassoc;
-
- /* TODO: start monitoring current AP signal quality and number of
- * missed beacons. Scan other channels every now and then and search
- * for better APs. */
- /* TODO: remove expired BSSes */
-
- ifsta->state = IEEE80211_ASSOCIATED;
-
- sta = sta_info_get(local, ifsta->bssid);
- if (!sta) {
- printk(KERN_DEBUG "%s: No STA entry for own AP " MAC_FMT "\n",
- dev->name, MAC_ARG(ifsta->bssid));
- disassoc = 1;
- } else {
- disassoc = 0;
- if (time_after(jiffies,
- sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
- if (ifsta->flags & IEEE80211_STA_PROBEREQ_POLL) {
- printk(KERN_DEBUG "%s: No ProbeResp from "
- "current AP " MAC_FMT " - assume out of "
- "range\n",
- dev->name, MAC_ARG(ifsta->bssid));
- disassoc = 1;
- sta_info_free(sta);
- } else
- ieee80211_send_probe_req(dev, ifsta->bssid,
- local->scan_ssid,
- local->scan_ssid_len);
- ifsta->flags ^= IEEE80211_STA_PROBEREQ_POLL;
- } else {
- ifsta->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
- if (time_after(jiffies, ifsta->last_probe +
- IEEE80211_PROBE_INTERVAL)) {
- ifsta->last_probe = jiffies;
- ieee80211_send_probe_req(dev, ifsta->bssid,
- ifsta->ssid,
- ifsta->ssid_len);
- }
- }
- sta_info_put(sta);
- }
- if (disassoc) {
- union iwreq_data wrqu;
- memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
- mod_timer(&ifsta->timer, jiffies +
- IEEE80211_MONITORING_INTERVAL + 30 * HZ);
- } else {
- mod_timer(&ifsta->timer, jiffies +
- IEEE80211_MONITORING_INTERVAL);
- }
-}
-
-
-static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
- u8 *ssid, size_t ssid_len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw_mode *mode;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u8 *pos, *supp_rates, *esupp_rates = NULL;
- int i;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
- "request\n", dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_PROBE_REQ);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- if (dst) {
- memcpy(mgmt->da, dst, ETH_ALEN);
- memcpy(mgmt->bssid, dst, ETH_ALEN);
- } else {
- memset(mgmt->da, 0xff, ETH_ALEN);
- memset(mgmt->bssid, 0xff, ETH_ALEN);
- }
- pos = skb_put(skb, 2 + ssid_len);
- *pos++ = WLAN_EID_SSID;
- *pos++ = ssid_len;
- memcpy(pos, ssid, ssid_len);
-
- supp_rates = skb_put(skb, 2);
- supp_rates[0] = WLAN_EID_SUPP_RATES;
- supp_rates[1] = 0;
- mode = local->oper_hw_mode;
- for (i = 0; i < mode->num_rates; i++) {
- struct ieee80211_rate *rate = &mode->rates[i];
- if (!(rate->flags & IEEE80211_RATE_SUPPORTED))
- continue;
- if (esupp_rates) {
- pos = skb_put(skb, 1);
- esupp_rates[1]++;
- } else if (supp_rates[1] == 8) {
- esupp_rates = skb_put(skb, 3);
- esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
- esupp_rates[1] = 1;
- pos = &esupp_rates[2];
- } else {
- pos = skb_put(skb, 1);
- supp_rates[1]++;
- }
- *pos = rate->rate / 5;
- }
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-static int ieee80211_sta_wep_configured(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (!sdata || !sdata->default_key ||
- sdata->default_key->conf.alg != ALG_WEP)
- return 0;
- return 1;
-}
-
-
-static void ieee80211_auth_completed(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- printk(KERN_DEBUG "%s: authenticated\n", dev->name);
- ifsta->flags |= IEEE80211_STA_AUTHENTICATED;
- ieee80211_associate(dev, ifsta);
-}
-
-
-static void ieee80211_auth_challenge(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- u8 *pos;
- struct ieee802_11_elems elems;
-
- printk(KERN_DEBUG "%s: replying to auth challenge\n", dev->name);
- pos = mgmt->u.auth.variable;
- if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems)
- == ParseFailed) {
- printk(KERN_DEBUG "%s: failed to parse Auth(challenge)\n",
- dev->name);
- return;
- }
- if (!elems.challenge) {
- printk(KERN_DEBUG "%s: no challenge IE in shared key auth "
- "frame\n", dev->name);
- return;
- }
- ieee80211_send_auth(dev, ifsta, 3, elems.challenge - 2,
- elems.challenge_len + 2, 1);
-}
-
-
-static void ieee80211_rx_mgmt_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- u16 auth_alg, auth_transaction, status_code;
-
- if (ifsta->state != IEEE80211_AUTHENTICATE &&
- sdata->type != IEEE80211_IF_TYPE_IBSS) {
- printk(KERN_DEBUG "%s: authentication frame received from "
- MAC_FMT ", but not in authenticate state - ignored\n",
- dev->name, MAC_ARG(mgmt->sa));
- return;
- }
-
- if (len < 24 + 6) {
- printk(KERN_DEBUG "%s: too short (%zd) authentication frame "
- "received from " MAC_FMT " - ignored\n",
- dev->name, len, MAC_ARG(mgmt->sa));
- return;
- }
-
- if (sdata->type != IEEE80211_IF_TYPE_IBSS &&
- memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: authentication frame received from "
- "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
- "ignored\n", dev->name, MAC_ARG(mgmt->sa),
- MAC_ARG(mgmt->bssid));
- return;
- }
-
- if (sdata->type != IEEE80211_IF_TYPE_IBSS &&
- memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: authentication frame received from "
- "unknown BSSID (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
- "ignored\n", dev->name, MAC_ARG(mgmt->sa),
- MAC_ARG(mgmt->bssid));
- return;
- }
-
- auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg);
- auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction);
- status_code = le16_to_cpu(mgmt->u.auth.status_code);
-
- printk(KERN_DEBUG "%s: RX authentication from " MAC_FMT " (alg=%d "
- "transaction=%d status=%d)\n",
- dev->name, MAC_ARG(mgmt->sa), auth_alg,
- auth_transaction, status_code);
-
- if (sdata->type == IEEE80211_IF_TYPE_IBSS) {
- /* IEEE 802.11 standard does not require authentication in IBSS
- * networks and most implementations do not seem to use it.
- * However, try to reply to authentication attempts if someone
- * has actually implemented this.
- * TODO: Could implement shared key authentication. */
- if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1) {
- printk(KERN_DEBUG "%s: unexpected IBSS authentication "
- "frame (alg=%d transaction=%d)\n",
- dev->name, auth_alg, auth_transaction);
- return;
- }
- ieee80211_send_auth(dev, ifsta, 2, NULL, 0, 0);
- }
-
- if (auth_alg != ifsta->auth_alg ||
- auth_transaction != ifsta->auth_transaction) {
- printk(KERN_DEBUG "%s: unexpected authentication frame "
- "(alg=%d transaction=%d)\n",
- dev->name, auth_alg, auth_transaction);
- return;
- }
-
- if (status_code != WLAN_STATUS_SUCCESS) {
- printk(KERN_DEBUG "%s: AP denied authentication (auth_alg=%d "
- "code=%d)\n", dev->name, ifsta->auth_alg, status_code);
- if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) {
- u8 algs[3];
- const int num_algs = ARRAY_SIZE(algs);
- int i, pos;
- algs[0] = algs[1] = algs[2] = 0xff;
- if (ifsta->auth_algs & IEEE80211_AUTH_ALG_OPEN)
- algs[0] = WLAN_AUTH_OPEN;
- if (ifsta->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
- algs[1] = WLAN_AUTH_SHARED_KEY;
- if (ifsta->auth_algs & IEEE80211_AUTH_ALG_LEAP)
- algs[2] = WLAN_AUTH_LEAP;
- if (ifsta->auth_alg == WLAN_AUTH_OPEN)
- pos = 0;
- else if (ifsta->auth_alg == WLAN_AUTH_SHARED_KEY)
- pos = 1;
- else
- pos = 2;
- for (i = 0; i < num_algs; i++) {
- pos++;
- if (pos >= num_algs)
- pos = 0;
- if (algs[pos] == ifsta->auth_alg ||
- algs[pos] == 0xff)
- continue;
- if (algs[pos] == WLAN_AUTH_SHARED_KEY &&
- !ieee80211_sta_wep_configured(dev))
- continue;
- ifsta->auth_alg = algs[pos];
- printk(KERN_DEBUG "%s: set auth_alg=%d for "
- "next try\n",
- dev->name, ifsta->auth_alg);
- break;
- }
- }
- return;
- }
-
- switch (ifsta->auth_alg) {
- case WLAN_AUTH_OPEN:
- case WLAN_AUTH_LEAP:
- ieee80211_auth_completed(dev, ifsta);
- break;
- case WLAN_AUTH_SHARED_KEY:
- if (ifsta->auth_transaction == 4)
- ieee80211_auth_completed(dev, ifsta);
- else
- ieee80211_auth_challenge(dev, ifsta, mgmt, len);
- break;
- }
-}
-
-
-static void ieee80211_rx_mgmt_deauth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- u16 reason_code;
-
- if (len < 24 + 2) {
- printk(KERN_DEBUG "%s: too short (%zd) deauthentication frame "
- "received from " MAC_FMT " - ignored\n",
- dev->name, len, MAC_ARG(mgmt->sa));
- return;
- }
-
- if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: deauthentication frame received from "
- "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
- "ignored\n", dev->name, MAC_ARG(mgmt->sa),
- MAC_ARG(mgmt->bssid));
- return;
- }
-
- reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
-
- printk(KERN_DEBUG "%s: RX deauthentication from " MAC_FMT
- " (reason=%d)\n",
- dev->name, MAC_ARG(mgmt->sa), reason_code);
-
- if (ifsta->flags & IEEE80211_STA_AUTHENTICATED) {
- printk(KERN_DEBUG "%s: deauthenticated\n", dev->name);
- }
-
- if (ifsta->state == IEEE80211_AUTHENTICATE ||
- ifsta->state == IEEE80211_ASSOCIATE ||
- ifsta->state == IEEE80211_ASSOCIATED) {
- ifsta->state = IEEE80211_AUTHENTICATE;
- mod_timer(&ifsta->timer, jiffies +
- IEEE80211_RETRY_AUTH_INTERVAL);
- }
-
- ieee80211_set_disassoc(dev, ifsta, 1);
- ifsta->flags &= ~IEEE80211_STA_AUTHENTICATED;
-}
-
-
-static void ieee80211_rx_mgmt_disassoc(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- u16 reason_code;
-
- if (len < 24 + 2) {
- printk(KERN_DEBUG "%s: too short (%zd) disassociation frame "
- "received from " MAC_FMT " - ignored\n",
- dev->name, len, MAC_ARG(mgmt->sa));
- return;
- }
-
- if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: disassociation frame received from "
- "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
- "ignored\n", dev->name, MAC_ARG(mgmt->sa),
- MAC_ARG(mgmt->bssid));
- return;
- }
-
- reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
-
- printk(KERN_DEBUG "%s: RX disassociation from " MAC_FMT
- " (reason=%d)\n",
- dev->name, MAC_ARG(mgmt->sa), reason_code);
-
- if (ifsta->flags & IEEE80211_STA_ASSOCIATED)
- printk(KERN_DEBUG "%s: disassociated\n", dev->name);
-
- if (ifsta->state == IEEE80211_ASSOCIATED) {
- ifsta->state = IEEE80211_ASSOCIATE;
- mod_timer(&ifsta->timer, jiffies +
- IEEE80211_RETRY_AUTH_INTERVAL);
- }
-
- ieee80211_set_disassoc(dev, ifsta, 0);
-}
-
-
-static void ieee80211_rx_mgmt_assoc_resp(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- int reassoc)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw_mode *mode;
- struct sta_info *sta;
- u32 rates;
- u16 capab_info, status_code, aid;
- struct ieee802_11_elems elems;
- u8 *pos;
- int i, j;
-
- /* AssocResp and ReassocResp have identical structure, so process both
- * of them in this function. */
-
- if (ifsta->state != IEEE80211_ASSOCIATE) {
- printk(KERN_DEBUG "%s: association frame received from "
- MAC_FMT ", but not in associate state - ignored\n",
- dev->name, MAC_ARG(mgmt->sa));
- return;
- }
-
- if (len < 24 + 6) {
- printk(KERN_DEBUG "%s: too short (%zd) association frame "
- "received from " MAC_FMT " - ignored\n",
- dev->name, len, MAC_ARG(mgmt->sa));
- return;
- }
-
- if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: association frame received from "
- "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
- "ignored\n", dev->name, MAC_ARG(mgmt->sa),
- MAC_ARG(mgmt->bssid));
- return;
- }
-
- capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info);
- status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
- aid = le16_to_cpu(mgmt->u.assoc_resp.aid);
- if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14)))
- printk(KERN_DEBUG "%s: invalid aid value %d; bits 15:14 not "
- "set\n", dev->name, aid);
- aid &= ~(BIT(15) | BIT(14));
-
- printk(KERN_DEBUG "%s: RX %sssocResp from " MAC_FMT " (capab=0x%x "
- "status=%d aid=%d)\n",
- dev->name, reassoc ? "Rea" : "A", MAC_ARG(mgmt->sa),
- capab_info, status_code, aid);
-
- if (status_code != WLAN_STATUS_SUCCESS) {
- printk(KERN_DEBUG "%s: AP denied association (code=%d)\n",
- dev->name, status_code);
- /* if this was a reassociation, ensure we try a "full"
- * association next time. This works around some broken APs
- * which do not correctly reject reassociation requests. */
- ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
- return;
- }
-
- pos = mgmt->u.assoc_resp.variable;
- if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems)
- == ParseFailed) {
- printk(KERN_DEBUG "%s: failed to parse AssocResp\n",
- dev->name);
- return;
- }
-
- if (!elems.supp_rates) {
- printk(KERN_DEBUG "%s: no SuppRates element in AssocResp\n",
- dev->name);
- return;
- }
-
- /* it probably doesn't, but if the frame includes an ERP value then
- * update our stored copy */
- if (elems.erp_info && elems.erp_info_len >= 1) {
- struct ieee80211_sta_bss *bss
- = ieee80211_rx_bss_get(dev, ifsta->bssid);
- if (bss) {
- bss->erp_value = elems.erp_info[0];
- bss->has_erp_value = 1;
- ieee80211_rx_bss_put(dev, bss);
- }
- }
-
- printk(KERN_DEBUG "%s: associated\n", dev->name);
- ifsta->aid = aid;
- ifsta->ap_capab = capab_info;
-
- kfree(ifsta->assocresp_ies);
- ifsta->assocresp_ies_len = len - (pos - (u8 *) mgmt);
- ifsta->assocresp_ies = kmalloc(ifsta->assocresp_ies_len, GFP_KERNEL);
- if (ifsta->assocresp_ies)
- memcpy(ifsta->assocresp_ies, pos, ifsta->assocresp_ies_len);
-
- ieee80211_set_associated(dev, ifsta, 1);
-
- /* Add STA entry for the AP */
- sta = sta_info_get(local, ifsta->bssid);
- if (!sta) {
- struct ieee80211_sta_bss *bss;
- sta = sta_info_add(local, dev, ifsta->bssid, GFP_KERNEL);
- if (!sta) {
- printk(KERN_DEBUG "%s: failed to add STA entry for the"
- " AP\n", dev->name);
- return;
- }
- bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
- if (bss) {
- sta->last_rssi = bss->rssi;
- sta->last_signal = bss->signal;
- sta->last_noise = bss->noise;
- ieee80211_rx_bss_put(dev, bss);
- }
- }
-
- sta->dev = dev;
- sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_AP;
-
- rates = 0;
- mode = local->oper_hw_mode;
- for (i = 0; i < elems.supp_rates_len; i++) {
- int rate = (elems.supp_rates[i] & 0x7f) * 5;
- for (j = 0; j < mode->num_rates; j++)
- if (mode->rates[j].rate == rate)
- rates |= BIT(j);
- }
- for (i = 0; i < elems.ext_supp_rates_len; i++) {
- int rate = (elems.ext_supp_rates[i] & 0x7f) * 5;
- for (j = 0; j < mode->num_rates; j++)
- if (mode->rates[j].rate == rate)
- rates |= BIT(j);
- }
- sta->supp_rates = rates;
-
- rate_control_rate_init(sta, local);
-
- if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
- sta->flags |= WLAN_STA_WME;
- ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
- elems.wmm_param_len);
- }
-
-
- sta_info_put(sta);
-
- ieee80211_associated(dev, ifsta);
-}
-
-
-/* Caller must hold local->sta_bss_lock */
-static void __ieee80211_rx_bss_hash_add(struct net_device *dev,
- struct ieee80211_sta_bss *bss)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- bss->hnext = local->sta_bss_hash[STA_HASH(bss->bssid)];
- local->sta_bss_hash[STA_HASH(bss->bssid)] = bss;
-}
-
-
-/* Caller must hold local->sta_bss_lock */
-static void __ieee80211_rx_bss_hash_del(struct net_device *dev,
- struct ieee80211_sta_bss *bss)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *b, *prev = NULL;
- b = local->sta_bss_hash[STA_HASH(bss->bssid)];
- while (b) {
- if (b == bss) {
- if (!prev)
- local->sta_bss_hash[STA_HASH(bss->bssid)] =
- bss->hnext;
- else
- prev->hnext = bss->hnext;
- break;
- }
- prev = b;
- b = b->hnext;
- }
-}
-
-
-static struct ieee80211_sta_bss *
-ieee80211_rx_bss_add(struct net_device *dev, u8 *bssid)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
-
- bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
- if (!bss)
- return NULL;
- atomic_inc(&bss->users);
- atomic_inc(&bss->users);
- memcpy(bss->bssid, bssid, ETH_ALEN);
-
- spin_lock_bh(&local->sta_bss_lock);
- /* TODO: order by RSSI? */
- list_add_tail(&bss->list, &local->sta_bss_list);
- __ieee80211_rx_bss_hash_add(dev, bss);
- spin_unlock_bh(&local->sta_bss_lock);
- return bss;
-}
-
-
-static struct ieee80211_sta_bss *
-ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
-
- spin_lock_bh(&local->sta_bss_lock);
- bss = local->sta_bss_hash[STA_HASH(bssid)];
- while (bss) {
- if (memcmp(bss->bssid, bssid, ETH_ALEN) == 0) {
- atomic_inc(&bss->users);
- break;
- }
- bss = bss->hnext;
- }
- spin_unlock_bh(&local->sta_bss_lock);
- return bss;
-}
-
-
-static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
-{
- kfree(bss->wpa_ie);
- kfree(bss->rsn_ie);
- kfree(bss->wmm_ie);
- kfree(bss);
-}
-
-
-static void ieee80211_rx_bss_put(struct net_device *dev,
- struct ieee80211_sta_bss *bss)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- if (!atomic_dec_and_test(&bss->users))
- return;
-
- spin_lock_bh(&local->sta_bss_lock);
- __ieee80211_rx_bss_hash_del(dev, bss);
- list_del(&bss->list);
- spin_unlock_bh(&local->sta_bss_lock);
- ieee80211_rx_bss_free(bss);
-}
-
-
-void ieee80211_rx_bss_list_init(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- spin_lock_init(&local->sta_bss_lock);
- INIT_LIST_HEAD(&local->sta_bss_list);
-}
-
-
-void ieee80211_rx_bss_list_deinit(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss, *tmp;
-
- list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list)
- ieee80211_rx_bss_put(dev, bss);
-}
-
-
-static void ieee80211_rx_bss_info(struct net_device *dev,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status,
- int beacon)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee802_11_elems elems;
- size_t baselen;
- int channel, invalid = 0, clen;
- struct ieee80211_sta_bss *bss;
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- u64 timestamp;
-
- if (!beacon && memcmp(mgmt->da, dev->dev_addr, ETH_ALEN))
- return; /* ignore ProbeResp to foreign address */
-
-#if 0
- printk(KERN_DEBUG "%s: RX %s from " MAC_FMT " to " MAC_FMT "\n",
- dev->name, beacon ? "Beacon" : "Probe Response",
- MAC_ARG(mgmt->sa), MAC_ARG(mgmt->da));
-#endif
-
- baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
- if (baselen > len)
- return;
-
- timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
-
- if (sdata->type == IEEE80211_IF_TYPE_IBSS && beacon &&
- memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- static unsigned long last_tsf_debug = 0;
- u64 tsf;
- if (local->ops->get_tsf)
- tsf = local->ops->get_tsf(local_to_hw(local));
- else
- tsf = -1LLU;
- if (time_after(jiffies, last_tsf_debug + 5 * HZ)) {
- printk(KERN_DEBUG "RX beacon SA=" MAC_FMT " BSSID="
- MAC_FMT " TSF=0x%llx BCN=0x%llx diff=%lld "
- "@%lu\n",
- MAC_ARG(mgmt->sa), MAC_ARG(mgmt->bssid),
- (unsigned long long)tsf,
- (unsigned long long)timestamp,
- (unsigned long long)(tsf - timestamp),
- jiffies);
- last_tsf_debug = jiffies;
- }
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- }
-
- if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen,
- &elems) == ParseFailed)
- invalid = 1;
-
- if (sdata->type == IEEE80211_IF_TYPE_IBSS && elems.supp_rates &&
- memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 &&
- (sta = sta_info_get(local, mgmt->sa))) {
- struct ieee80211_hw_mode *mode;
- struct ieee80211_rate *rates;
- size_t num_rates;
- u32 supp_rates, prev_rates;
- int i, j;
-
- mode = local->sta_scanning ?
- local->scan_hw_mode : local->oper_hw_mode;
- rates = mode->rates;
- num_rates = mode->num_rates;
-
- supp_rates = 0;
- for (i = 0; i < elems.supp_rates_len +
- elems.ext_supp_rates_len; i++) {
- u8 rate = 0;
- int own_rate;
- if (i < elems.supp_rates_len)
- rate = elems.supp_rates[i];
- else if (elems.ext_supp_rates)
- rate = elems.ext_supp_rates
- [i - elems.supp_rates_len];
- own_rate = 5 * (rate & 0x7f);
- for (j = 0; j < num_rates; j++)
- if (rates[j].rate == own_rate)
- supp_rates |= BIT(j);
- }
-
- prev_rates = sta->supp_rates;
- sta->supp_rates &= supp_rates;
- if (sta->supp_rates == 0) {
- /* No matching rates - this should not really happen.
- * Make sure that at least one rate is marked
- * supported to avoid issues with TX rate ctrl. */
- sta->supp_rates = sdata->u.sta.supp_rates_bits;
- }
- if (sta->supp_rates != prev_rates) {
- printk(KERN_DEBUG "%s: updated supp_rates set for "
- MAC_FMT " based on beacon info (0x%x & 0x%x -> "
- "0x%x)\n",
- dev->name, MAC_ARG(sta->addr), prev_rates,
- supp_rates, sta->supp_rates);
- }
- sta_info_put(sta);
- }
-
- if (!elems.ssid)
- return;
-
- if (elems.ds_params && elems.ds_params_len == 1)
- channel = elems.ds_params[0];
- else
- channel = rx_status->channel;
-
- bss = ieee80211_rx_bss_get(dev, mgmt->bssid);
- if (!bss) {
- bss = ieee80211_rx_bss_add(dev, mgmt->bssid);
- if (!bss)
- return;
- } else {
-#if 0
- /* TODO: order by RSSI? */
- spin_lock_bh(&local->sta_bss_lock);
- list_move_tail(&bss->list, &local->sta_bss_list);
- spin_unlock_bh(&local->sta_bss_lock);
-#endif
- }
-
- if (bss->probe_resp && beacon) {
- /* Do not allow beacon to override data from Probe Response. */
- ieee80211_rx_bss_put(dev, bss);
- return;
- }
-
- /* save the ERP value so that it is available at association time */
- if (elems.erp_info && elems.erp_info_len >= 1) {
- bss->erp_value = elems.erp_info[0];
- bss->has_erp_value = 1;
- }
-
- bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int);
- bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info);
- if (elems.ssid && elems.ssid_len <= IEEE80211_MAX_SSID_LEN) {
- memcpy(bss->ssid, elems.ssid, elems.ssid_len);
- bss->ssid_len = elems.ssid_len;
- }
-
- bss->supp_rates_len = 0;
- if (elems.supp_rates) {
- clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
- if (clen > elems.supp_rates_len)
- clen = elems.supp_rates_len;
- memcpy(&bss->supp_rates[bss->supp_rates_len], elems.supp_rates,
- clen);
- bss->supp_rates_len += clen;
- }
- if (elems.ext_supp_rates) {
- clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
- if (clen > elems.ext_supp_rates_len)
- clen = elems.ext_supp_rates_len;
- memcpy(&bss->supp_rates[bss->supp_rates_len],
- elems.ext_supp_rates, clen);
- bss->supp_rates_len += clen;
- }
-
- if (elems.wpa &&
- (!bss->wpa_ie || bss->wpa_ie_len != elems.wpa_len ||
- memcmp(bss->wpa_ie, elems.wpa, elems.wpa_len))) {
- kfree(bss->wpa_ie);
- bss->wpa_ie = kmalloc(elems.wpa_len + 2, GFP_ATOMIC);
- if (bss->wpa_ie) {
- memcpy(bss->wpa_ie, elems.wpa - 2, elems.wpa_len + 2);
- bss->wpa_ie_len = elems.wpa_len + 2;
- } else
- bss->wpa_ie_len = 0;
- } else if (!elems.wpa && bss->wpa_ie) {
- kfree(bss->wpa_ie);
- bss->wpa_ie = NULL;
- bss->wpa_ie_len = 0;
- }
-
- if (elems.rsn &&
- (!bss->rsn_ie || bss->rsn_ie_len != elems.rsn_len ||
- memcmp(bss->rsn_ie, elems.rsn, elems.rsn_len))) {
- kfree(bss->rsn_ie);
- bss->rsn_ie = kmalloc(elems.rsn_len + 2, GFP_ATOMIC);
- if (bss->rsn_ie) {
- memcpy(bss->rsn_ie, elems.rsn - 2, elems.rsn_len + 2);
- bss->rsn_ie_len = elems.rsn_len + 2;
- } else
- bss->rsn_ie_len = 0;
- } else if (!elems.rsn && bss->rsn_ie) {
- kfree(bss->rsn_ie);
- bss->rsn_ie = NULL;
- bss->rsn_ie_len = 0;
- }
-
- if (elems.wmm_param &&
- (!bss->wmm_ie || bss->wmm_ie_len != elems.wmm_param_len ||
- memcmp(bss->wmm_ie, elems.wmm_param, elems.wmm_param_len))) {
- kfree(bss->wmm_ie);
- bss->wmm_ie = kmalloc(elems.wmm_param_len + 2, GFP_ATOMIC);
- if (bss->wmm_ie) {
- memcpy(bss->wmm_ie, elems.wmm_param - 2,
- elems.wmm_param_len + 2);
- bss->wmm_ie_len = elems.wmm_param_len + 2;
- } else
- bss->wmm_ie_len = 0;
- } else if (!elems.wmm_param && bss->wmm_ie) {
- kfree(bss->wmm_ie);
- bss->wmm_ie = NULL;
- bss->wmm_ie_len = 0;
- }
-
-
- bss->hw_mode = rx_status->phymode;
- bss->channel = channel;
- bss->freq = rx_status->freq;
- if (channel != rx_status->channel &&
- (bss->hw_mode == MODE_IEEE80211G ||
- bss->hw_mode == MODE_IEEE80211B) &&
- channel >= 1 && channel <= 14) {
- static const int freq_list[] = {
- 2412, 2417, 2422, 2427, 2432, 2437, 2442,
- 2447, 2452, 2457, 2462, 2467, 2472, 2484
- };
- /* IEEE 802.11g/b mode can receive packets from neighboring
- * channels, so map the channel into frequency. */
- bss->freq = freq_list[channel - 1];
- }
- bss->timestamp = timestamp;
- bss->last_update = jiffies;
- bss->rssi = rx_status->ssi;
- bss->signal = rx_status->signal;
- bss->noise = rx_status->noise;
- if (!beacon)
- bss->probe_resp++;
- ieee80211_rx_bss_put(dev, bss);
-}
-
-
-static void ieee80211_rx_mgmt_probe_resp(struct net_device *dev,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 0);
-}
-
-
-static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_sta *ifsta;
- size_t baselen;
- struct ieee802_11_elems elems;
-
- ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 1);
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- return;
- ifsta = &sdata->u.sta;
-
- if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED) ||
- memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0)
- return;
-
- /* Process beacon from the current BSS */
- baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
- if (baselen > len)
- return;
-
- if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen,
- &elems) == ParseFailed)
- return;
-
- if (elems.erp_info && elems.erp_info_len >= 1)
- ieee80211_handle_erp_ie(dev, elems.erp_info[0]);
-
- if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
- ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
- elems.wmm_param_len);
- }
-}
-
-
-static void ieee80211_rx_mgmt_probe_req(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int tx_last_beacon;
- struct sk_buff *skb;
- struct ieee80211_mgmt *resp;
- u8 *pos, *end;
-
- if (sdata->type != IEEE80211_IF_TYPE_IBSS ||
- ifsta->state != IEEE80211_IBSS_JOINED ||
- len < 24 + 2 || !ifsta->probe_resp)
- return;
-
- if (local->ops->tx_last_beacon)
- tx_last_beacon = local->ops->tx_last_beacon(local_to_hw(local));
- else
- tx_last_beacon = 1;
-
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: RX ProbeReq SA=" MAC_FMT " DA=" MAC_FMT " BSSID="
- MAC_FMT " (tx_last_beacon=%d)\n",
- dev->name, MAC_ARG(mgmt->sa), MAC_ARG(mgmt->da),
- MAC_ARG(mgmt->bssid), tx_last_beacon);
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
-
- if (!tx_last_beacon)
- return;
-
- if (memcmp(mgmt->bssid, ifsta->bssid, ETH_ALEN) != 0 &&
- memcmp(mgmt->bssid, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
- return;
-
- end = ((u8 *) mgmt) + len;
- pos = mgmt->u.probe_req.variable;
- if (pos[0] != WLAN_EID_SSID ||
- pos + 2 + pos[1] > end) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: Invalid SSID IE in ProbeReq "
- "from " MAC_FMT "\n",
- dev->name, MAC_ARG(mgmt->sa));
- }
- return;
- }
- if (pos[1] != 0 &&
- (pos[1] != ifsta->ssid_len ||
- memcmp(pos + 2, ifsta->ssid, ifsta->ssid_len) != 0)) {
- /* Ignore ProbeReq for foreign SSID */
- return;
- }
-
- /* Reply with ProbeResp */
- skb = skb_copy(ifsta->probe_resp, GFP_KERNEL);
- if (!skb)
- return;
-
- resp = (struct ieee80211_mgmt *) skb->data;
- memcpy(resp->da, mgmt->sa, ETH_ALEN);
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: Sending ProbeResp to " MAC_FMT "\n",
- dev->name, MAC_ARG(resp->da));
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_rx_status *rx_status)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_sta *ifsta;
- struct ieee80211_mgmt *mgmt;
- u16 fc;
-
- if (skb->len < 24)
- goto fail;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- ifsta = &sdata->u.sta;
-
- mgmt = (struct ieee80211_mgmt *) skb->data;
- fc = le16_to_cpu(mgmt->frame_control);
-
- switch (fc & IEEE80211_FCTL_STYPE) {
- case IEEE80211_STYPE_PROBE_REQ:
- case IEEE80211_STYPE_PROBE_RESP:
- case IEEE80211_STYPE_BEACON:
- memcpy(skb->cb, rx_status, sizeof(*rx_status));
- case IEEE80211_STYPE_AUTH:
- case IEEE80211_STYPE_ASSOC_RESP:
- case IEEE80211_STYPE_REASSOC_RESP:
- case IEEE80211_STYPE_DEAUTH:
- case IEEE80211_STYPE_DISASSOC:
- skb_queue_tail(&ifsta->skb_queue, skb);
- queue_work(local->hw.workqueue, &ifsta->work);
- return;
- default:
- printk(KERN_DEBUG "%s: received unknown management frame - "
- "stype=%d\n", dev->name,
- (fc & IEEE80211_FCTL_STYPE) >> 4);
- break;
- }
-
- fail:
- kfree_skb(skb);
-}
-
-
-static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev,
- struct sk_buff *skb)
-{
- struct ieee80211_rx_status *rx_status;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_sta *ifsta;
- struct ieee80211_mgmt *mgmt;
- u16 fc;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- ifsta = &sdata->u.sta;
-
- rx_status = (struct ieee80211_rx_status *) skb->cb;
- mgmt = (struct ieee80211_mgmt *) skb->data;
- fc = le16_to_cpu(mgmt->frame_control);
-
- switch (fc & IEEE80211_FCTL_STYPE) {
- case IEEE80211_STYPE_PROBE_REQ:
- ieee80211_rx_mgmt_probe_req(dev, ifsta, mgmt, skb->len,
- rx_status);
- break;
- case IEEE80211_STYPE_PROBE_RESP:
- ieee80211_rx_mgmt_probe_resp(dev, mgmt, skb->len, rx_status);
- break;
- case IEEE80211_STYPE_BEACON:
- ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len, rx_status);
- break;
- case IEEE80211_STYPE_AUTH:
- ieee80211_rx_mgmt_auth(dev, ifsta, mgmt, skb->len);
- break;
- case IEEE80211_STYPE_ASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len, 0);
- break;
- case IEEE80211_STYPE_REASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len, 1);
- break;
- case IEEE80211_STYPE_DEAUTH:
- ieee80211_rx_mgmt_deauth(dev, ifsta, mgmt, skb->len);
- break;
- case IEEE80211_STYPE_DISASSOC:
- ieee80211_rx_mgmt_disassoc(dev, ifsta, mgmt, skb->len);
- break;
- }
-
- kfree_skb(skb);
-}
-
-
-void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_rx_status *rx_status)
-{
- struct ieee80211_mgmt *mgmt;
- u16 fc;
-
- if (skb->len < 24) {
- dev_kfree_skb(skb);
- return;
- }
-
- mgmt = (struct ieee80211_mgmt *) skb->data;
- fc = le16_to_cpu(mgmt->frame_control);
-
- if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
- if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP) {
- ieee80211_rx_mgmt_probe_resp(dev, mgmt,
- skb->len, rx_status);
- } else if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) {
- ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len,
- rx_status);
- }
- }
-
- dev_kfree_skb(skb);
-}
-
-
-static int ieee80211_sta_active_ibss(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- int active = 0;
- struct sta_info *sta;
-
- read_lock_bh(&local->sta_lock);
- list_for_each_entry(sta, &local->sta_list, list) {
- if (sta->dev == dev &&
- time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
- jiffies)) {
- active++;
- break;
- }
- }
- read_unlock_bh(&local->sta_lock);
-
- return active;
-}
-
-
-static void ieee80211_sta_expire(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta, *tmp;
- LIST_HEAD(tmp_list);
-
- write_lock_bh(&local->sta_lock);
- list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
- if (time_after(jiffies, sta->last_rx +
- IEEE80211_IBSS_INACTIVITY_LIMIT)) {
- printk(KERN_DEBUG "%s: expiring inactive STA " MAC_FMT
- "\n", dev->name, MAC_ARG(sta->addr));
- __sta_info_get(sta);
- sta_info_remove(sta);
- list_add(&sta->list, &tmp_list);
- }
- write_unlock_bh(&local->sta_lock);
-
- list_for_each_entry_safe(sta, tmp, &tmp_list, list) {
- sta_info_free(sta);
- sta_info_put(sta);
- }
-}
-
-
-static void ieee80211_sta_merge_ibss(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
-
- ieee80211_sta_expire(dev);
- if (ieee80211_sta_active_ibss(dev))
- return;
-
- printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
- "IBSS networks with same SSID (merge)\n", dev->name);
- ieee80211_sta_req_scan(dev, ifsta->ssid, ifsta->ssid_len);
-}
-
-
-void ieee80211_sta_timer(unsigned long data)
-{
- struct ieee80211_sub_if_data *sdata =
- (struct ieee80211_sub_if_data *) data;
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct ieee80211_local *local = wdev_priv(&sdata->wdev);
-
- set_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
- queue_work(local->hw.workqueue, &ifsta->work);
-}
-
-
-void ieee80211_sta_work(struct work_struct *work)
-{
- struct ieee80211_sub_if_data *sdata =
- container_of(work, struct ieee80211_sub_if_data, u.sta.work);
- struct net_device *dev = sdata->dev;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_if_sta *ifsta;
- struct sk_buff *skb;
-
- if (!netif_running(dev))
- return;
-
- if (local->sta_scanning)
- return;
-
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS) {
- printk(KERN_DEBUG "%s: ieee80211_sta_work: non-STA interface "
- "(type=%d)\n", dev->name, sdata->type);
- return;
- }
- ifsta = &sdata->u.sta;
-
- while ((skb = skb_dequeue(&ifsta->skb_queue)))
- ieee80211_sta_rx_queued_mgmt(dev, skb);
-
- if (ifsta->state != IEEE80211_AUTHENTICATE &&
- ifsta->state != IEEE80211_ASSOCIATE &&
- test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
- ieee80211_sta_start_scan(dev, NULL, 0);
- return;
- }
-
- if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) {
- if (ieee80211_sta_config_auth(dev, ifsta))
- return;
- clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
- } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request))
- return;
-
- switch (ifsta->state) {
- case IEEE80211_DISABLED:
- break;
- case IEEE80211_AUTHENTICATE:
- ieee80211_authenticate(dev, ifsta);
- break;
- case IEEE80211_ASSOCIATE:
- ieee80211_associate(dev, ifsta);
- break;
- case IEEE80211_ASSOCIATED:
- ieee80211_associated(dev, ifsta);
- break;
- case IEEE80211_IBSS_SEARCH:
- ieee80211_sta_find_ibss(dev, ifsta);
- break;
- case IEEE80211_IBSS_JOINED:
- ieee80211_sta_merge_ibss(dev, ifsta);
- break;
- default:
- printk(KERN_DEBUG "ieee80211_sta_work: Unknown state %d\n",
- ifsta->state);
- break;
- }
-
- if (ieee80211_privacy_mismatch(dev, ifsta)) {
- printk(KERN_DEBUG "%s: privacy configuration mismatch and "
- "mixed-cell disabled - disassociate\n", dev->name);
-
- ieee80211_send_disassoc(dev, ifsta, WLAN_REASON_UNSPECIFIED);
- ieee80211_set_disassoc(dev, ifsta, 0);
- }
-}
-
-
-static void ieee80211_sta_reset_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (local->ops->reset_tsf) {
- /* Reset own TSF to allow time synchronization work. */
- local->ops->reset_tsf(local_to_hw(local));
- }
-
- ifsta->wmm_last_param_set = -1; /* allow any WMM update */
-
-
- if (ifsta->auth_algs & IEEE80211_AUTH_ALG_OPEN)
- ifsta->auth_alg = WLAN_AUTH_OPEN;
- else if (ifsta->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
- ifsta->auth_alg = WLAN_AUTH_SHARED_KEY;
- else if (ifsta->auth_algs & IEEE80211_AUTH_ALG_LEAP)
- ifsta->auth_alg = WLAN_AUTH_LEAP;
- else
- ifsta->auth_alg = WLAN_AUTH_OPEN;
- printk(KERN_DEBUG "%s: Initial auth_alg=%d\n", dev->name,
- ifsta->auth_alg);
- ifsta->auth_transaction = -1;
- ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
- ifsta->auth_tries = ifsta->assoc_tries = 0;
- netif_carrier_off(dev);
-}
-
-
-void ieee80211_sta_req_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- return;
-
- if ((ifsta->flags & (IEEE80211_STA_BSSID_SET |
- IEEE80211_STA_AUTO_BSSID_SEL)) &&
- (ifsta->flags & (IEEE80211_STA_SSID_SET |
- IEEE80211_STA_AUTO_SSID_SEL))) {
- set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
- queue_work(local->hw.workqueue, &ifsta->work);
- }
-}
-
-static int ieee80211_sta_match_ssid(struct ieee80211_if_sta *ifsta,
- const char *ssid, int ssid_len)
-{
- int tmp, hidden_ssid;
-
- if (!memcmp(ifsta->ssid, ssid, ssid_len))
- return 1;
-
- if (ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL)
- return 0;
-
- hidden_ssid = 1;
- tmp = ssid_len;
- while (tmp--) {
- if (ssid[tmp] != '\0') {
- hidden_ssid = 0;
- break;
- }
- }
-
- if (hidden_ssid && ifsta->ssid_len == ssid_len)
- return 1;
-
- if (ssid_len == 1 && ssid[0] == ' ')
- return 1;
-
- return 0;
-}
-
-static int ieee80211_sta_config_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_sta_bss *bss, *selected = NULL;
- int top_rssi = 0, freq;
-
- if (!(ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
- IEEE80211_STA_AUTO_BSSID_SEL | IEEE80211_STA_AUTO_CHANNEL_SEL))) {
- ifsta->state = IEEE80211_AUTHENTICATE;
- ieee80211_sta_reset_auth(dev, ifsta);
- return 0;
- }
-
- spin_lock_bh(&local->sta_bss_lock);
- freq = local->oper_channel->freq;
- list_for_each_entry(bss, &local->sta_bss_list, list) {
- if (!(bss->capability & WLAN_CAPABILITY_ESS))
- continue;
-
- if (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^
- !!sdata->default_key)
- continue;
-
- if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) &&
- bss->freq != freq)
- continue;
-
- if (!(ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL) &&
- memcmp(bss->bssid, ifsta->bssid, ETH_ALEN))
- continue;
-
- if (!(ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) &&
- !ieee80211_sta_match_ssid(ifsta, bss->ssid, bss->ssid_len))
- continue;
-
- if (!selected || top_rssi < bss->rssi) {
- selected = bss;
- top_rssi = bss->rssi;
- }
- }
- if (selected)
- atomic_inc(&selected->users);
- spin_unlock_bh(&local->sta_bss_lock);
-
- if (selected) {
- ieee80211_set_channel(local, -1, selected->freq);
- if (!(ifsta->flags & IEEE80211_STA_SSID_SET))
- ieee80211_sta_set_ssid(dev, selected->ssid,
- selected->ssid_len);
- ieee80211_sta_set_bssid(dev, selected->bssid);
- ieee80211_rx_bss_put(dev, selected);
- ifsta->state = IEEE80211_AUTHENTICATE;
- ieee80211_sta_reset_auth(dev, ifsta);
- return 0;
- } else {
- if (ifsta->state != IEEE80211_AUTHENTICATE) {
- if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL)
- ieee80211_sta_start_scan(dev, NULL, 0);
- else
- ieee80211_sta_start_scan(dev, ifsta->ssid,
- ifsta->ssid_len);
- ifsta->state = IEEE80211_AUTHENTICATE;
- set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
- } else
- ifsta->state = IEEE80211_DISABLED;
- }
- return -1;
-}
-
-static int ieee80211_sta_join_ibss(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_sta_bss *bss)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- int res, rates, i, j;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- struct ieee80211_tx_control control;
- struct ieee80211_rate *rate;
- struct ieee80211_hw_mode *mode;
- struct rate_control_extra extra;
- u8 *pos;
- struct ieee80211_sub_if_data *sdata;
-
- /* Remove possible STA entries from other IBSS networks. */
- sta_info_flush(local, NULL);
-
- if (local->ops->reset_tsf) {
- /* Reset own TSF to allow time synchronization work. */
- local->ops->reset_tsf(local_to_hw(local));
- }
- memcpy(ifsta->bssid, bss->bssid, ETH_ALEN);
- res = ieee80211_if_config(dev);
- if (res)
- return res;
-
- local->hw.conf.beacon_int = bss->beacon_int >= 10 ? bss->beacon_int : 10;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- sdata->drop_unencrypted = bss->capability &
- WLAN_CAPABILITY_PRIVACY ? 1 : 0;
-
- res = ieee80211_set_channel(local, -1, bss->freq);
-
- if (!(local->oper_channel->flag & IEEE80211_CHAN_W_IBSS)) {
- printk(KERN_DEBUG "%s: IBSS not allowed on channel %d "
- "(%d MHz)\n", dev->name, local->hw.conf.channel,
- local->hw.conf.freq);
- return -1;
- }
-
- /* Set beacon template based on scan results */
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
- do {
- if (!skb)
- break;
-
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- mgmt = (struct ieee80211_mgmt *)
- skb_put(skb, 24 + sizeof(mgmt->u.beacon));
- memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_BEACON);
- memset(mgmt->da, 0xff, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->u.beacon.beacon_int =
- cpu_to_le16(local->hw.conf.beacon_int);
- mgmt->u.beacon.capab_info = cpu_to_le16(bss->capability);
-
- pos = skb_put(skb, 2 + ifsta->ssid_len);
- *pos++ = WLAN_EID_SSID;
- *pos++ = ifsta->ssid_len;
- memcpy(pos, ifsta->ssid, ifsta->ssid_len);
-
- rates = bss->supp_rates_len;
- if (rates > 8)
- rates = 8;
- pos = skb_put(skb, 2 + rates);
- *pos++ = WLAN_EID_SUPP_RATES;
- *pos++ = rates;
- memcpy(pos, bss->supp_rates, rates);
-
- pos = skb_put(skb, 2 + 1);
- *pos++ = WLAN_EID_DS_PARAMS;
- *pos++ = 1;
- *pos++ = bss->channel;
-
- pos = skb_put(skb, 2 + 2);
- *pos++ = WLAN_EID_IBSS_PARAMS;
- *pos++ = 2;
- /* FIX: set ATIM window based on scan results */
- *pos++ = 0;
- *pos++ = 0;
-
- if (bss->supp_rates_len > 8) {
- rates = bss->supp_rates_len - 8;
- pos = skb_put(skb, 2 + rates);
- *pos++ = WLAN_EID_EXT_SUPP_RATES;
- *pos++ = rates;
- memcpy(pos, &bss->supp_rates[8], rates);
- }
-
- memset(&control, 0, sizeof(control));
- memset(&extra, 0, sizeof(extra));
- extra.mode = local->oper_hw_mode;
- rate = rate_control_get_rate(local, dev, skb, &extra);
- if (!rate) {
- printk(KERN_DEBUG "%s: Failed to determine TX rate "
- "for IBSS beacon\n", dev->name);
- break;
- }
- control.tx_rate =
- ((sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
- (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
- rate->val2 : rate->val;
- control.antenna_sel_tx = local->hw.conf.antenna_sel_tx;
- control.power_level = local->hw.conf.power_level;
- control.flags |= IEEE80211_TXCTL_NO_ACK;
- control.retry_limit = 1;
-
- ifsta->probe_resp = skb_copy(skb, GFP_ATOMIC);
- if (ifsta->probe_resp) {
- mgmt = (struct ieee80211_mgmt *)
- ifsta->probe_resp->data;
- mgmt->frame_control =
- IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_PROBE_RESP);
- } else {
- printk(KERN_DEBUG "%s: Could not allocate ProbeResp "
- "template for IBSS\n", dev->name);
- }
-
- if (local->ops->beacon_update &&
- local->ops->beacon_update(local_to_hw(local),
- skb, &control) == 0) {
- printk(KERN_DEBUG "%s: Configured IBSS beacon "
- "template based on scan results\n", dev->name);
- skb = NULL;
- }
-
- rates = 0;
- mode = local->oper_hw_mode;
- for (i = 0; i < bss->supp_rates_len; i++) {
- int bitrate = (bss->supp_rates[i] & 0x7f) * 5;
- for (j = 0; j < mode->num_rates; j++)
- if (mode->rates[j].rate == bitrate)
- rates |= BIT(j);
- }
- ifsta->supp_rates_bits = rates;
- } while (0);
-
- if (skb) {
- printk(KERN_DEBUG "%s: Failed to configure IBSS beacon "
- "template\n", dev->name);
- dev_kfree_skb(skb);
- }
-
- ifsta->state = IEEE80211_IBSS_JOINED;
- mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
-
- ieee80211_rx_bss_put(dev, bss);
-
- return res;
-}
-
-
-static int ieee80211_sta_create_ibss(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_hw_mode *mode;
- u8 bssid[ETH_ALEN], *pos;
- int i;
-
-#if 0
- /* Easier testing, use fixed BSSID. */
- memset(bssid, 0xfe, ETH_ALEN);
-#else
- /* Generate random, not broadcast, locally administered BSSID. Mix in
- * own MAC address to make sure that devices that do not have proper
- * random number generator get different BSSID. */
- get_random_bytes(bssid, ETH_ALEN);
- for (i = 0; i < ETH_ALEN; i++)
- bssid[i] ^= dev->dev_addr[i];
- bssid[0] &= ~0x01;
- bssid[0] |= 0x02;
-#endif
-
- printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID " MAC_FMT "\n",
- dev->name, MAC_ARG(bssid));
-
- bss = ieee80211_rx_bss_add(dev, bssid);
- if (!bss)
- return -ENOMEM;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- mode = local->oper_hw_mode;
-
- if (local->hw.conf.beacon_int == 0)
- local->hw.conf.beacon_int = 100;
- bss->beacon_int = local->hw.conf.beacon_int;
- bss->hw_mode = local->hw.conf.phymode;
- bss->channel = local->hw.conf.channel;
- bss->freq = local->hw.conf.freq;
- bss->last_update = jiffies;
- bss->capability = WLAN_CAPABILITY_IBSS;
- if (sdata->default_key) {
- bss->capability |= WLAN_CAPABILITY_PRIVACY;
- } else
- sdata->drop_unencrypted = 0;
- bss->supp_rates_len = mode->num_rates;
- pos = bss->supp_rates;
- for (i = 0; i < mode->num_rates; i++) {
- int rate = mode->rates[i].rate;
- *pos++ = (u8) (rate / 5);
- }
-
- return ieee80211_sta_join_ibss(dev, ifsta, bss);
-}
-
-
-static int ieee80211_sta_find_ibss(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
- int found = 0;
- u8 bssid[ETH_ALEN];
- int active_ibss;
-
- if (ifsta->ssid_len == 0)
- return -EINVAL;
-
- active_ibss = ieee80211_sta_active_ibss(dev);
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n",
- dev->name, active_ibss);
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- spin_lock_bh(&local->sta_bss_lock);
- list_for_each_entry(bss, &local->sta_bss_list, list) {
- if (ifsta->ssid_len != bss->ssid_len ||
- memcmp(ifsta->ssid, bss->ssid, bss->ssid_len) != 0
- || !(bss->capability & WLAN_CAPABILITY_IBSS))
- continue;
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG " bssid=" MAC_FMT " found\n",
- MAC_ARG(bss->bssid));
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- memcpy(bssid, bss->bssid, ETH_ALEN);
- found = 1;
- if (active_ibss || memcmp(bssid, ifsta->bssid, ETH_ALEN) != 0)
- break;
- }
- spin_unlock_bh(&local->sta_bss_lock);
-
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG " sta_find_ibss: selected " MAC_FMT " current "
- MAC_FMT "\n", MAC_ARG(bssid), MAC_ARG(ifsta->bssid));
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- if (found && memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0 &&
- (bss = ieee80211_rx_bss_get(dev, bssid))) {
- printk(KERN_DEBUG "%s: Selected IBSS BSSID " MAC_FMT
- " based on configured SSID\n",
- dev->name, MAC_ARG(bssid));
- return ieee80211_sta_join_ibss(dev, ifsta, bss);
- }
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG " did not try to join ibss\n");
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
-
- /* Selected IBSS not found in current scan results - try to scan */
- if (ifsta->state == IEEE80211_IBSS_JOINED &&
- !ieee80211_sta_active_ibss(dev)) {
- mod_timer(&ifsta->timer, jiffies +
- IEEE80211_IBSS_MERGE_INTERVAL);
- } else if (time_after(jiffies, local->last_scan_completed +
- IEEE80211_SCAN_INTERVAL)) {
- printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
- "join\n", dev->name);
- return ieee80211_sta_req_scan(dev, ifsta->ssid,
- ifsta->ssid_len);
- } else if (ifsta->state != IEEE80211_IBSS_JOINED) {
- int interval = IEEE80211_SCAN_INTERVAL;
-
- if (time_after(jiffies, ifsta->ibss_join_req +
- IEEE80211_IBSS_JOIN_TIMEOUT)) {
- if ((ifsta->flags & IEEE80211_STA_CREATE_IBSS) &&
- local->oper_channel->flag & IEEE80211_CHAN_W_IBSS)
- return ieee80211_sta_create_ibss(dev, ifsta);
- if (ifsta->flags & IEEE80211_STA_CREATE_IBSS) {
- printk(KERN_DEBUG "%s: IBSS not allowed on the"
- " configured channel %d (%d MHz)\n",
- dev->name, local->hw.conf.channel,
- local->hw.conf.freq);
- }
-
- /* No IBSS found - decrease scan interval and continue
- * scanning. */
- interval = IEEE80211_SCAN_INTERVAL_SLOW;
- }
-
- ifsta->state = IEEE80211_IBSS_SEARCH;
- mod_timer(&ifsta->timer, jiffies + interval);
- return 0;
- }
-
- return 0;
-}
-
-
-int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_sta *ifsta;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
-
- /* TODO: This should always be done for IBSS, even if IEEE80211_QOS is
- * not defined. */
- if (local->ops->conf_tx) {
- struct ieee80211_tx_queue_params qparam;
- int i;
-
- memset(&qparam, 0, sizeof(qparam));
- /* TODO: are these ok defaults for all hw_modes? */
- qparam.aifs = 2;
- qparam.cw_min =
- local->hw.conf.phymode == MODE_IEEE80211B ? 31 : 15;
- qparam.cw_max = 1023;
- qparam.burst_time = 0;
- for (i = IEEE80211_TX_QUEUE_DATA0; i < NUM_TX_DATA_QUEUES; i++)
- {
- local->ops->conf_tx(local_to_hw(local),
- i + IEEE80211_TX_QUEUE_DATA0,
- &qparam);
- }
- /* IBSS uses different parameters for Beacon sending */
- qparam.cw_min++;
- qparam.cw_min *= 2;
- qparam.cw_min--;
- local->ops->conf_tx(local_to_hw(local),
- IEEE80211_TX_QUEUE_BEACON, &qparam);
- }
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- ifsta = &sdata->u.sta;
-
- if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0)
- ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
- memcpy(ifsta->ssid, ssid, len);
- memset(ifsta->ssid + len, 0, IEEE80211_MAX_SSID_LEN - len);
- ifsta->ssid_len = len;
-
- if (len)
- ifsta->flags |= IEEE80211_STA_SSID_SET;
- else
- ifsta->flags &= ~IEEE80211_STA_SSID_SET;
- if (sdata->type == IEEE80211_IF_TYPE_IBSS &&
- !(ifsta->flags & IEEE80211_STA_BSSID_SET)) {
- ifsta->ibss_join_req = jiffies;
- ifsta->state = IEEE80211_IBSS_SEARCH;
- return ieee80211_sta_find_ibss(dev, ifsta);
- }
- return 0;
-}
-
-
-int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- memcpy(ssid, ifsta->ssid, ifsta->ssid_len);
- *len = ifsta->ssid_len;
- return 0;
-}
-
-
-int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_sta *ifsta;
- int res;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- ifsta = &sdata->u.sta;
-
- if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) {
- memcpy(ifsta->bssid, bssid, ETH_ALEN);
- res = ieee80211_if_config(dev);
- if (res) {
- printk(KERN_DEBUG "%s: Failed to config new BSSID to "
- "the low-level driver\n", dev->name);
- return res;
- }
- }
-
- if (is_valid_ether_addr(bssid))
- ifsta->flags |= IEEE80211_STA_BSSID_SET;
- else
- ifsta->flags &= ~IEEE80211_STA_BSSID_SET;
-
- return 0;
-}
-
-
-static void ieee80211_send_nullfunc(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata,
- int powersave)
-{
- struct sk_buff *skb;
- struct ieee80211_hdr *nullfunc;
- u16 fc;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
- "frame\n", sdata->dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
- memset(nullfunc, 0, 24);
- fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
- IEEE80211_FCTL_TODS;
- if (powersave)
- fc |= IEEE80211_FCTL_PM;
- nullfunc->frame_control = cpu_to_le16(fc);
- memcpy(nullfunc->addr1, sdata->u.sta.bssid, ETH_ALEN);
- memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
- memcpy(nullfunc->addr3, sdata->u.sta.bssid, ETH_ALEN);
-
- ieee80211_sta_tx(sdata->dev, skb, 0);
-}
-
-
-void ieee80211_scan_completed(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct net_device *dev = local->scan_dev;
- struct ieee80211_sub_if_data *sdata;
- union iwreq_data wrqu;
-
- local->last_scan_completed = jiffies;
- wmb();
- local->sta_scanning = 0;
-
- if (ieee80211_hw_config(local))
- printk(KERN_DEBUG "%s: failed to restore operational"
- "channel after scan\n", dev->name);
-
-
- netif_tx_lock_bh(local->mdev);
- local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC;
- local->ops->configure_filter(local_to_hw(local),
- FIF_BCN_PRBRESP_PROMISC,
- &local->filter_flags,
- local->mdev->mc_count,
- local->mdev->mc_list);
-
- netif_tx_unlock_bh(local->mdev);
-
- memset(&wrqu, 0, sizeof(wrqu));
- wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
-
- rcu_read_lock();
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-
- /* No need to wake the master device. */
- if (sdata->dev == local->mdev)
- continue;
-
- if (sdata->type == IEEE80211_IF_TYPE_STA) {
- if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)
- ieee80211_send_nullfunc(local, sdata, 0);
- ieee80211_sta_timer((unsigned long)sdata);
- }
-
- netif_wake_queue(sdata->dev);
- }
- rcu_read_unlock();
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_IBSS) {
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
- (!ifsta->state == IEEE80211_IBSS_JOINED &&
- !ieee80211_sta_active_ibss(dev)))
- ieee80211_sta_find_ibss(dev, ifsta);
- }
-}
-EXPORT_SYMBOL(ieee80211_scan_completed);
-
-void ieee80211_sta_scan_work(struct work_struct *work)
-{
- struct ieee80211_local *local =
- container_of(work, struct ieee80211_local, scan_work.work);
- struct net_device *dev = local->scan_dev;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_hw_mode *mode;
- struct ieee80211_channel *chan;
- int skip;
- unsigned long next_delay = 0;
-
- if (!local->sta_scanning)
- return;
-
- switch (local->scan_state) {
- case SCAN_SET_CHANNEL:
- mode = local->scan_hw_mode;
- if (local->scan_hw_mode->list.next == &local->modes_list &&
- local->scan_channel_idx >= mode->num_channels) {
- ieee80211_scan_completed(local_to_hw(local));
- return;
- }
- skip = !(local->enabled_modes & (1 << mode->mode));
- chan = &mode->channels[local->scan_channel_idx];
- if (!(chan->flag & IEEE80211_CHAN_W_SCAN) ||
- (sdata->type == IEEE80211_IF_TYPE_IBSS &&
- !(chan->flag & IEEE80211_CHAN_W_IBSS)) ||
- (local->hw_modes & local->enabled_modes &
- (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
- skip = 1;
-
- if (!skip) {
-#if 0
- printk(KERN_DEBUG "%s: scan channel %d (%d MHz)\n",
- dev->name, chan->chan, chan->freq);
-#endif
-
- local->scan_channel = chan;
- if (ieee80211_hw_config(local)) {
- printk(KERN_DEBUG "%s: failed to set channel "
- "%d (%d MHz) for scan\n", dev->name,
- chan->chan, chan->freq);
- skip = 1;
- }
- }
-
- local->scan_channel_idx++;
- if (local->scan_channel_idx >= local->scan_hw_mode->num_channels) {
- if (local->scan_hw_mode->list.next != &local->modes_list) {
- local->scan_hw_mode = list_entry(local->scan_hw_mode->list.next,
- struct ieee80211_hw_mode,
- list);
- local->scan_channel_idx = 0;
- }
- }
-
- if (skip)
- break;
-
- next_delay = IEEE80211_PROBE_DELAY +
- usecs_to_jiffies(local->hw.channel_change_time);
- local->scan_state = SCAN_SEND_PROBE;
- break;
- case SCAN_SEND_PROBE:
- if (local->scan_channel->flag & IEEE80211_CHAN_W_ACTIVE_SCAN) {
- ieee80211_send_probe_req(dev, NULL, local->scan_ssid,
- local->scan_ssid_len);
- next_delay = IEEE80211_CHANNEL_TIME;
- } else
- next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
- local->scan_state = SCAN_SET_CHANNEL;
- break;
- }
-
- if (local->sta_scanning)
- queue_delayed_work(local->hw.workqueue, &local->scan_work,
- next_delay);
-}
-
-
-static int ieee80211_sta_start_scan(struct net_device *dev,
- u8 *ssid, size_t ssid_len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
-
- if (ssid_len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
-
- /* MLME-SCAN.request (page 118) page 144 (11.1.3.1)
- * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS
- * BSSID: MACAddress
- * SSID
- * ScanType: ACTIVE, PASSIVE
- * ProbeDelay: delay (in microseconds) to be used prior to transmitting
- * a Probe frame during active scanning
- * ChannelList
- * MinChannelTime (>= ProbeDelay), in TU
- * MaxChannelTime: (>= MinChannelTime), in TU
- */
-
- /* MLME-SCAN.confirm
- * BSSDescriptionSet
- * ResultCode: SUCCESS, INVALID_PARAMETERS
- */
-
- if (local->sta_scanning) {
- if (local->scan_dev == dev)
- return 0;
- return -EBUSY;
- }
-
- if (local->ops->hw_scan) {
- int rc = local->ops->hw_scan(local_to_hw(local),
- ssid, ssid_len);
- if (!rc) {
- local->sta_scanning = 1;
- local->scan_dev = dev;
- }
- return rc;
- }
-
- local->sta_scanning = 1;
-
- rcu_read_lock();
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-
- /* Don't stop the master interface, otherwise we can't transmit
- * probes! */
- if (sdata->dev == local->mdev)
- continue;
-
- netif_stop_queue(sdata->dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA &&
- (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED))
- ieee80211_send_nullfunc(local, sdata, 1);
- }
- rcu_read_unlock();
-
- if (ssid) {
- local->scan_ssid_len = ssid_len;
- memcpy(local->scan_ssid, ssid, ssid_len);
- } else
- local->scan_ssid_len = 0;
- local->scan_state = SCAN_SET_CHANNEL;
- local->scan_hw_mode = list_entry(local->modes_list.next,
- struct ieee80211_hw_mode,
- list);
- local->scan_channel_idx = 0;
- local->scan_dev = dev;
-
- netif_tx_lock_bh(local->mdev);
- local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
- local->ops->configure_filter(local_to_hw(local),
- FIF_BCN_PRBRESP_PROMISC,
- &local->filter_flags,
- local->mdev->mc_count,
- local->mdev->mc_list);
- netif_tx_unlock_bh(local->mdev);
-
- /* TODO: start scan as soon as all nullfunc frames are ACKed */
- queue_delayed_work(local->hw.workqueue, &local->scan_work,
- IEEE80211_CHANNEL_TIME);
-
- return 0;
-}
-
-
-int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- return ieee80211_sta_start_scan(dev, ssid, ssid_len);
-
- if (local->sta_scanning) {
- if (local->scan_dev == dev)
- return 0;
- return -EBUSY;
- }
-
- set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request);
- queue_work(local->hw.workqueue, &ifsta->work);
- return 0;
-}
-
-static char *
-ieee80211_sta_scan_result(struct net_device *dev,
- struct ieee80211_sta_bss *bss,
- char *current_ev, char *end_buf)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct iw_event iwe;
-
- if (time_after(jiffies,
- bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE))
- return current_ev;
-
- if (!(local->enabled_modes & (1 << bss->hw_mode)))
- return current_ev;
-
- if (local->scan_flags & IEEE80211_SCAN_WPA_ONLY &&
- !bss->wpa_ie && !bss->rsn_ie)
- return current_ev;
-
- if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID &&
- (local->scan_ssid_len != bss->ssid_len ||
- memcmp(local->scan_ssid, bss->ssid, bss->ssid_len) != 0))
- return current_ev;
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWAP;
- iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
- memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
- current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
- IW_EV_ADDR_LEN);
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWESSID;
- iwe.u.data.length = bss->ssid_len;
- iwe.u.data.flags = 1;
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- bss->ssid);
-
- if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWMODE;
- if (bss->capability & WLAN_CAPABILITY_ESS)
- iwe.u.mode = IW_MODE_MASTER;
- else
- iwe.u.mode = IW_MODE_ADHOC;
- current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
- IW_EV_UINT_LEN);
- }
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWFREQ;
- iwe.u.freq.m = bss->channel;
- iwe.u.freq.e = 0;
- current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
- IW_EV_FREQ_LEN);
- iwe.u.freq.m = bss->freq * 100000;
- iwe.u.freq.e = 1;
- current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
- IW_EV_FREQ_LEN);
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVQUAL;
- iwe.u.qual.qual = bss->signal;
- iwe.u.qual.level = bss->rssi;
- iwe.u.qual.noise = bss->noise;
- iwe.u.qual.updated = local->wstats_flags;
- current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
- IW_EV_QUAL_LEN);
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWENCODE;
- if (bss->capability & WLAN_CAPABILITY_PRIVACY)
- iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
- else
- iwe.u.data.flags = IW_ENCODE_DISABLED;
- iwe.u.data.length = 0;
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, "");
-
- if (bss && bss->wpa_ie) {
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVGENIE;
- iwe.u.data.length = bss->wpa_ie_len;
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- bss->wpa_ie);
- }
-
- if (bss && bss->rsn_ie) {
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVGENIE;
- iwe.u.data.length = bss->rsn_ie_len;
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- bss->rsn_ie);
- }
-
- if (bss && bss->supp_rates_len > 0) {
- /* display all supported rates in readable format */
- char *p = current_ev + IW_EV_LCP_LEN;
- int i;
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWRATE;
- /* Those two flags are ignored... */
- iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
-
- for (i = 0; i < bss->supp_rates_len; i++) {
- iwe.u.bitrate.value = ((bss->supp_rates[i] &
- 0x7f) * 500000);
- p = iwe_stream_add_value(current_ev, p,
- end_buf, &iwe, IW_EV_PARAM_LEN);
- }
- current_ev = p;
- }
-
- if (bss) {
- char *buf;
- buf = kmalloc(30, GFP_ATOMIC);
- if (buf) {
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVCUSTOM;
- sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->timestamp));
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(current_ev, end_buf,
- &iwe, buf);
- kfree(buf);
- }
- }
-
- do {
- char *buf;
-
- if (!(local->scan_flags & IEEE80211_SCAN_EXTRA_INFO))
- break;
-
- buf = kmalloc(100, GFP_ATOMIC);
- if (!buf)
- break;
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVCUSTOM;
- sprintf(buf, "bcn_int=%d", bss->beacon_int);
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- buf);
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVCUSTOM;
- sprintf(buf, "capab=0x%04x", bss->capability);
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- buf);
-
- kfree(buf);
- break;
- } while (0);
-
- return current_ev;
-}
-
-
-int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- char *current_ev = buf;
- char *end_buf = buf + len;
- struct ieee80211_sta_bss *bss;
-
- spin_lock_bh(&local->sta_bss_lock);
- list_for_each_entry(bss, &local->sta_bss_list, list) {
- if (buf + len - current_ev <= IW_EV_ADDR_LEN) {
- spin_unlock_bh(&local->sta_bss_lock);
- return -E2BIG;
- }
- current_ev = ieee80211_sta_scan_result(dev, bss, current_ev,
- end_buf);
- }
- spin_unlock_bh(&local->sta_bss_lock);
- return current_ev - buf;
-}
-
-
-int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- kfree(ifsta->extra_ie);
- if (len == 0) {
- ifsta->extra_ie = NULL;
- ifsta->extra_ie_len = 0;
- return 0;
- }
- ifsta->extra_ie = kmalloc(len, GFP_KERNEL);
- if (!ifsta->extra_ie) {
- ifsta->extra_ie_len = 0;
- return -ENOMEM;
- }
- memcpy(ifsta->extra_ie, ie, len);
- ifsta->extra_ie_len = len;
- return 0;
-}
-
-
-struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
- struct sk_buff *skb, u8 *bssid,
- u8 *addr)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- /* TODO: Could consider removing the least recently used entry and
- * allow new one to be added. */
- if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: No room for a new IBSS STA "
- "entry " MAC_FMT "\n", dev->name, MAC_ARG(addr));
- }
- return NULL;
- }
-
- printk(KERN_DEBUG "%s: Adding new IBSS station " MAC_FMT " (dev=%s)\n",
- wiphy_name(local->hw.wiphy), MAC_ARG(addr), dev->name);
-
- sta = sta_info_add(local, dev, addr, GFP_ATOMIC);
- if (!sta)
- return NULL;
-
- sta->supp_rates = sdata->u.sta.supp_rates_bits;
-
- rate_control_rate_init(sta, local);
-
- return sta; /* caller will call sta_info_put() */
-}
-
-
-int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-
- printk(KERN_DEBUG "%s: deauthenticate(reason=%d)\n",
- dev->name, reason);
-
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
- return -EINVAL;
-
- ieee80211_send_deauth(dev, ifsta, reason);
- ieee80211_set_disassoc(dev, ifsta, 1);
- return 0;
-}
-
-
-int ieee80211_sta_disassociate(struct net_device *dev, u16 reason)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-
- printk(KERN_DEBUG "%s: disassociate(reason=%d)\n",
- dev->name, reason);
-
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- return -EINVAL;
-
- if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED))
- return -1;
-
- ieee80211_send_disassoc(dev, ifsta, reason);
- ieee80211_set_disassoc(dev, ifsta, 0);
- return 0;
-}
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/if_ether.h>
-#include <linux/etherdevice.h>
-#include <linux/list.h>
-#include <linux/rcupdate.h>
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "debugfs_key.h"
-#include "aes_ccm.h"
-
-
-/*
- * Key handling basics
- *
- * Key handling in mac80211 is done based on per-interface (sub_if_data)
- * keys and per-station keys. Since each station belongs to an interface,
- * each station key also belongs to that interface.
- *
- * Hardware acceleration is done on a best-effort basis, for each key
- * that is eligible the hardware is asked to enable that key but if
- * it cannot do that they key is simply kept for software encryption.
- * There is currently no way of knowing this except by looking into
- * debugfs.
- *
- * All operations here are called under RTNL so no extra locking is
- * required.
- */
-
-static const u8 bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
-static const u8 zero_addr[ETH_ALEN];
-
-static const u8 *get_mac_for_key(struct ieee80211_key *key)
-{
- const u8 *addr = bcast_addr;
-
- /*
- * If we're an AP we won't ever receive frames with a non-WEP
- * group key so we tell the driver that by using the zero MAC
- * address to indicate a transmit-only key.
- */
- if (key->conf.alg != ALG_WEP &&
- (key->sdata->type == IEEE80211_IF_TYPE_AP ||
- key->sdata->type == IEEE80211_IF_TYPE_VLAN))
- addr = zero_addr;
-
- if (key->sta)
- addr = key->sta->addr;
-
- return addr;
-}
-
-static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
-{
- const u8 *addr;
- int ret;
-
- if (!key->local->ops->set_key)
- return;
-
- addr = get_mac_for_key(key);
-
- ret = key->local->ops->set_key(local_to_hw(key->local), SET_KEY,
- key->sdata->dev->dev_addr, addr,
- &key->conf);
-
- if (!ret)
- key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE;
-
- if (ret && ret != -ENOSPC && ret != -EOPNOTSUPP)
- printk(KERN_ERR "mac80211-%s: failed to set key "
- "(%d, " MAC_FMT ") to hardware (%d)\n",
- wiphy_name(key->local->hw.wiphy),
- key->conf.keyidx, MAC_ARG(addr), ret);
-}
-
-static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
-{
- const u8 *addr;
- int ret;
-
- if (!key->local->ops->set_key)
- return;
-
- if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
- return;
-
- addr = get_mac_for_key(key);
-
- ret = key->local->ops->set_key(local_to_hw(key->local), DISABLE_KEY,
- key->sdata->dev->dev_addr, addr,
- &key->conf);
-
- if (ret)
- printk(KERN_ERR "mac80211-%s: failed to remove key "
- "(%d, " MAC_FMT ") from hardware (%d)\n",
- wiphy_name(key->local->hw.wiphy),
- key->conf.keyidx, MAC_ARG(addr), ret);
-
- key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE;
-}
-
-struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
- struct sta_info *sta,
- enum ieee80211_key_alg alg,
- int idx,
- size_t key_len,
- const u8 *key_data)
-{
- struct ieee80211_key *key;
-
- BUG_ON(idx < 0 || idx >= NUM_DEFAULT_KEYS);
-
- key = kzalloc(sizeof(struct ieee80211_key) + key_len, GFP_KERNEL);
- if (!key)
- return NULL;
-
- /*
- * Default to software encryption; we'll later upload the
- * key to the hardware if possible.
- */
- key->conf.flags = 0;
- key->flags = 0;
-
- key->conf.alg = alg;
- key->conf.keyidx = idx;
- key->conf.keylen = key_len;
- memcpy(key->conf.key, key_data, key_len);
-
- key->local = sdata->local;
- key->sdata = sdata;
- key->sta = sta;
-
- if (alg == ALG_CCMP) {
- /*
- * Initialize AES key state here as an optimization so that
- * it does not need to be initialized for every packet.
- */
- key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt(key_data);
- if (!key->u.ccmp.tfm) {
- ieee80211_key_free(key);
- return NULL;
- }
- }
-
- ieee80211_debugfs_key_add(key->local, key);
-
- /* remove key first */
- if (sta)
- ieee80211_key_free(sta->key);
- else
- ieee80211_key_free(sdata->keys[idx]);
-
- if (sta) {
- ieee80211_debugfs_key_sta_link(key, sta);
-
- /*
- * some hardware cannot handle TKIP with QoS, so
- * we indicate whether QoS could be in use.
- */
- if (sta->flags & WLAN_STA_WME)
- key->conf.flags |= IEEE80211_KEY_FLAG_WMM_STA;
- } else {
- if (sdata->type == IEEE80211_IF_TYPE_STA) {
- struct sta_info *ap;
-
- /* same here, the AP could be using QoS */
- ap = sta_info_get(key->local, key->sdata->u.sta.bssid);
- if (ap) {
- if (ap->flags & WLAN_STA_WME)
- key->conf.flags |=
- IEEE80211_KEY_FLAG_WMM_STA;
- sta_info_put(ap);
- }
- }
- }
-
- /* enable hwaccel if appropriate */
- if (netif_running(key->sdata->dev))
- ieee80211_key_enable_hw_accel(key);
-
- if (sta)
- rcu_assign_pointer(sta->key, key);
- else
- rcu_assign_pointer(sdata->keys[idx], key);
-
- list_add(&key->list, &sdata->key_list);
-
- return key;
-}
-
-void ieee80211_key_free(struct ieee80211_key *key)
-{
- if (!key)
- return;
-
- if (key->sta) {
- rcu_assign_pointer(key->sta->key, NULL);
- } else {
- if (key->sdata->default_key == key)
- ieee80211_set_default_key(key->sdata, -1);
- if (key->conf.keyidx >= 0 &&
- key->conf.keyidx < NUM_DEFAULT_KEYS)
- rcu_assign_pointer(key->sdata->keys[key->conf.keyidx],
- NULL);
- else
- WARN_ON(1);
- }
-
- /* wait for all key users to complete */
- synchronize_rcu();
-
- /* remove from hwaccel if appropriate */
- ieee80211_key_disable_hw_accel(key);
-
- if (key->conf.alg == ALG_CCMP)
- ieee80211_aes_key_free(key->u.ccmp.tfm);
- ieee80211_debugfs_key_remove(key);
-
- list_del(&key->list);
-
- kfree(key);
-}
-
-void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx)
-{
- struct ieee80211_key *key = NULL;
-
- if (idx >= 0 && idx < NUM_DEFAULT_KEYS)
- key = sdata->keys[idx];
-
- if (sdata->default_key != key) {
- ieee80211_debugfs_key_remove_default(sdata);
-
- rcu_assign_pointer(sdata->default_key, key);
-
- if (sdata->default_key)
- ieee80211_debugfs_key_add_default(sdata);
- }
-}
-
-void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_key *key, *tmp;
-
- list_for_each_entry_safe(key, tmp, &sdata->key_list, list)
- ieee80211_key_free(key);
-}
-
-void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_key *key;
-
- WARN_ON(!netif_running(sdata->dev));
- if (!netif_running(sdata->dev))
- return;
-
- list_for_each_entry(key, &sdata->key_list, list)
- ieee80211_key_enable_hw_accel(key);
-}
-
-void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_key *key;
-
- list_for_each_entry(key, &sdata->key_list, list)
- ieee80211_key_disable_hw_accel(key);
-}
+++ /dev/null
-/*
- * Michael MIC implementation - optimized for TKIP MIC operations
- * Copyright 2002-2003, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/types.h>
-
-#include "michael.h"
-
-static inline u32 rotr(u32 val, int bits)
-{
- return (val >> bits) | (val << (32 - bits));
-}
-
-
-static inline u32 rotl(u32 val, int bits)
-{
- return (val << bits) | (val >> (32 - bits));
-}
-
-
-static inline u32 xswap(u32 val)
-{
- return ((val & 0xff00ff00) >> 8) | ((val & 0x00ff00ff) << 8);
-}
-
-
-#define michael_block(l, r) \
-do { \
- r ^= rotl(l, 17); \
- l += r; \
- r ^= xswap(l); \
- l += r; \
- r ^= rotl(l, 3); \
- l += r; \
- r ^= rotr(l, 2); \
- l += r; \
-} while (0)
-
-
-static inline u32 michael_get32(u8 *data)
-{
- return data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
-}
-
-
-static inline void michael_put32(u32 val, u8 *data)
-{
- data[0] = val & 0xff;
- data[1] = (val >> 8) & 0xff;
- data[2] = (val >> 16) & 0xff;
- data[3] = (val >> 24) & 0xff;
-}
-
-
-void michael_mic(u8 *key, u8 *da, u8 *sa, u8 priority,
- u8 *data, size_t data_len, u8 *mic)
-{
- u32 l, r, val;
- size_t block, blocks, left;
-
- l = michael_get32(key);
- r = michael_get32(key + 4);
-
- /* A pseudo header (DA, SA, Priority, 0, 0, 0) is used in Michael MIC
- * calculation, but it is _not_ transmitted */
- l ^= michael_get32(da);
- michael_block(l, r);
- l ^= da[4] | (da[5] << 8) | (sa[0] << 16) | (sa[1] << 24);
- michael_block(l, r);
- l ^= michael_get32(&sa[2]);
- michael_block(l, r);
- l ^= priority;
- michael_block(l, r);
-
- /* Real data */
- blocks = data_len / 4;
- left = data_len % 4;
-
- for (block = 0; block < blocks; block++) {
- l ^= michael_get32(&data[block * 4]);
- michael_block(l, r);
- }
-
- /* Partial block of 0..3 bytes and padding: 0x5a + 4..7 zeros to make
- * total length a multiple of 4. */
- val = 0x5a;
- while (left > 0) {
- val <<= 8;
- left--;
- val |= data[blocks * 4 + left];
- }
- l ^= val;
- michael_block(l, r);
- /* last block is zero, so l ^ 0 = l */
- michael_block(l, r);
-
- michael_put32(l, mic);
- michael_put32(r, mic + 4);
-}
+++ /dev/null
-/*
- * Michael MIC implementation - optimized for TKIP MIC operations
- * Copyright 2002-2003, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef MICHAEL_H
-#define MICHAEL_H
-
-#include <linux/types.h>
-
-#define MICHAEL_MIC_LEN 8
-
-void michael_mic(u8 *key, u8 *da, u8 *sa, u8 priority,
- u8 *data, size_t data_len, u8 *mic);
-
-#endif /* MICHAEL_H */
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/compiler.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "debugfs.h"
-
-
-/* This is a minimal implementation of TX rate controlling that can be used
- * as the default when no improved mechanisms are available. */
-
-
-#define RATE_CONTROL_EMERG_DEC 2
-#define RATE_CONTROL_INTERVAL (HZ / 20)
-#define RATE_CONTROL_MIN_TX 10
-
-MODULE_ALIAS("rc80211_default");
-
-static void rate_control_rate_inc(struct ieee80211_local *local,
- struct sta_info *sta)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_hw_mode *mode;
- int i = sta->txrate;
- int maxrate;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
- if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
- /* forced unicast rate - do not change STA rate */
- return;
- }
-
- mode = local->oper_hw_mode;
- maxrate = sdata->bss ? sdata->bss->max_ratectrl_rateidx : -1;
-
- if (i > mode->num_rates)
- i = mode->num_rates - 2;
-
- while (i + 1 < mode->num_rates) {
- i++;
- if (sta->supp_rates & BIT(i) &&
- mode->rates[i].flags & IEEE80211_RATE_SUPPORTED &&
- (maxrate < 0 || i <= maxrate)) {
- sta->txrate = i;
- break;
- }
- }
-}
-
-
-static void rate_control_rate_dec(struct ieee80211_local *local,
- struct sta_info *sta)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_hw_mode *mode;
- int i = sta->txrate;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
- if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
- /* forced unicast rate - do not change STA rate */
- return;
- }
-
- mode = local->oper_hw_mode;
- if (i > mode->num_rates)
- i = mode->num_rates;
-
- while (i > 0) {
- i--;
- if (sta->supp_rates & BIT(i) &&
- mode->rates[i].flags & IEEE80211_RATE_SUPPORTED) {
- sta->txrate = i;
- break;
- }
- }
-}
-
-
-static struct ieee80211_rate *
-rate_control_lowest_rate(struct ieee80211_local *local,
- struct ieee80211_hw_mode *mode)
-{
- int i;
-
- for (i = 0; i < mode->num_rates; i++) {
- struct ieee80211_rate *rate = &mode->rates[i];
-
- if (rate->flags & IEEE80211_RATE_SUPPORTED)
- return rate;
- }
-
- printk(KERN_DEBUG "rate_control_lowest_rate - no supported rates "
- "found\n");
- return &mode->rates[0];
-}
-
-
-struct global_rate_control {
- int dummy;
-};
-
-struct sta_rate_control {
- unsigned long last_rate_change;
- u32 tx_num_failures;
- u32 tx_num_xmit;
-
- unsigned long avg_rate_update;
- u32 tx_avg_rate_sum;
- u32 tx_avg_rate_num;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct dentry *tx_avg_rate_sum_dentry;
- struct dentry *tx_avg_rate_num_dentry;
-#endif
-};
-
-
-static void rate_control_simple_tx_status(void *priv, struct net_device *dev,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct sta_info *sta;
- struct sta_rate_control *srctrl;
-
- sta = sta_info_get(local, hdr->addr1);
-
- if (!sta)
- return;
-
- srctrl = sta->rate_ctrl_priv;
- srctrl->tx_num_xmit++;
- if (status->excessive_retries) {
- srctrl->tx_num_failures++;
- sta->tx_retry_failed++;
- sta->tx_num_consecutive_failures++;
- sta->tx_num_mpdu_fail++;
- } else {
- sta->last_ack_rssi[0] = sta->last_ack_rssi[1];
- sta->last_ack_rssi[1] = sta->last_ack_rssi[2];
- sta->last_ack_rssi[2] = status->ack_signal;
- sta->tx_num_consecutive_failures = 0;
- sta->tx_num_mpdu_ok++;
- }
- sta->tx_retry_count += status->retry_count;
- sta->tx_num_mpdu_fail += status->retry_count;
-
- if (time_after(jiffies,
- srctrl->last_rate_change + RATE_CONTROL_INTERVAL) &&
- srctrl->tx_num_xmit > RATE_CONTROL_MIN_TX) {
- u32 per_failed;
- srctrl->last_rate_change = jiffies;
-
- per_failed = (100 * sta->tx_num_mpdu_fail) /
- (sta->tx_num_mpdu_fail + sta->tx_num_mpdu_ok);
- /* TODO: calculate average per_failed to make adjusting
- * parameters easier */
-#if 0
- if (net_ratelimit()) {
- printk(KERN_DEBUG "MPDU fail=%d ok=%d per_failed=%d\n",
- sta->tx_num_mpdu_fail, sta->tx_num_mpdu_ok,
- per_failed);
- }
-#endif
-
- /*
- * XXX: Make these configurable once we have an
- * interface to the rate control algorithms
- */
- if (per_failed > RATE_CONTROL_NUM_DOWN) {
- rate_control_rate_dec(local, sta);
- } else if (per_failed < RATE_CONTROL_NUM_UP) {
- rate_control_rate_inc(local, sta);
- }
- srctrl->tx_avg_rate_sum += status->control.rate->rate;
- srctrl->tx_avg_rate_num++;
- srctrl->tx_num_failures = 0;
- srctrl->tx_num_xmit = 0;
- } else if (sta->tx_num_consecutive_failures >=
- RATE_CONTROL_EMERG_DEC) {
- rate_control_rate_dec(local, sta);
- }
-
- if (srctrl->avg_rate_update + 60 * HZ < jiffies) {
- srctrl->avg_rate_update = jiffies;
- if (srctrl->tx_avg_rate_num > 0) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: STA " MAC_FMT " Average rate: "
- "%d (%d/%d)\n",
- dev->name, MAC_ARG(sta->addr),
- srctrl->tx_avg_rate_sum /
- srctrl->tx_avg_rate_num,
- srctrl->tx_avg_rate_sum,
- srctrl->tx_avg_rate_num);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- srctrl->tx_avg_rate_sum = 0;
- srctrl->tx_avg_rate_num = 0;
- }
- }
-
- sta_info_put(sta);
-}
-
-
-static struct ieee80211_rate *
-rate_control_simple_get_rate(void *priv, struct net_device *dev,
- struct sk_buff *skb,
- struct rate_control_extra *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_hw_mode *mode = extra->mode;
- struct sta_info *sta;
- int rateidx, nonerp_idx;
- u16 fc;
-
- memset(extra, 0, sizeof(*extra));
-
- fc = le16_to_cpu(hdr->frame_control);
- if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
- (hdr->addr1[0] & 0x01)) {
- /* Send management frames and broadcast/multicast data using
- * lowest rate. */
- /* TODO: this could probably be improved.. */
- return rate_control_lowest_rate(local, mode);
- }
-
- sta = sta_info_get(local, hdr->addr1);
-
- if (!sta)
- return rate_control_lowest_rate(local, mode);
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
- sta->txrate = sdata->bss->force_unicast_rateidx;
-
- rateidx = sta->txrate;
-
- if (rateidx >= mode->num_rates)
- rateidx = mode->num_rates - 1;
-
- sta->last_txrate = rateidx;
- nonerp_idx = rateidx;
- while (nonerp_idx > 0 &&
- ((mode->rates[nonerp_idx].flags & IEEE80211_RATE_ERP) ||
- !(mode->rates[nonerp_idx].flags & IEEE80211_RATE_SUPPORTED) ||
- !(sta->supp_rates & BIT(nonerp_idx))))
- nonerp_idx--;
- extra->nonerp = &mode->rates[nonerp_idx];
-
- sta_info_put(sta);
-
- return &mode->rates[rateidx];
-}
-
-
-static void rate_control_simple_rate_init(void *priv, void *priv_sta,
- struct ieee80211_local *local,
- struct sta_info *sta)
-{
- struct ieee80211_hw_mode *mode;
- int i;
- sta->txrate = 0;
- mode = local->oper_hw_mode;
- /* TODO: This routine should consider using RSSI from previous packets
- * as we need to have IEEE 802.1X auth succeed immediately after assoc..
- * Until that method is implemented, we will use the lowest supported rate
- * as a workaround, */
- for (i = 0; i < mode->num_rates; i++) {
- if ((sta->supp_rates & BIT(i)) &&
- (mode->rates[i].flags & IEEE80211_RATE_SUPPORTED)) {
- sta->txrate = i;
- break;
- }
- }
-}
-
-
-static void * rate_control_simple_alloc(struct ieee80211_local *local)
-{
- struct global_rate_control *rctrl;
-
- rctrl = kzalloc(sizeof(*rctrl), GFP_ATOMIC);
-
- return rctrl;
-}
-
-
-static void rate_control_simple_free(void *priv)
-{
- struct global_rate_control *rctrl = priv;
- kfree(rctrl);
-}
-
-
-static void rate_control_simple_clear(void *priv)
-{
-}
-
-
-static void * rate_control_simple_alloc_sta(void *priv, gfp_t gfp)
-{
- struct sta_rate_control *rctrl;
-
- rctrl = kzalloc(sizeof(*rctrl), gfp);
-
- return rctrl;
-}
-
-
-static void rate_control_simple_free_sta(void *priv, void *priv_sta)
-{
- struct sta_rate_control *rctrl = priv_sta;
- kfree(rctrl);
-}
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-
-static int open_file_generic(struct inode *inode, struct file *file)
-{
- file->private_data = inode->i_private;
- return 0;
-}
-
-static ssize_t sta_tx_avg_rate_sum_read(struct file *file,
- char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct sta_rate_control *srctrl = file->private_data;
- char buf[20];
-
- sprintf(buf, "%d\n", srctrl->tx_avg_rate_sum);
- return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
-}
-
-static const struct file_operations sta_tx_avg_rate_sum_ops = {
- .read = sta_tx_avg_rate_sum_read,
- .open = open_file_generic,
-};
-
-static ssize_t sta_tx_avg_rate_num_read(struct file *file,
- char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct sta_rate_control *srctrl = file->private_data;
- char buf[20];
-
- sprintf(buf, "%d\n", srctrl->tx_avg_rate_num);
- return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
-}
-
-static const struct file_operations sta_tx_avg_rate_num_ops = {
- .read = sta_tx_avg_rate_num_read,
- .open = open_file_generic,
-};
-
-static void rate_control_simple_add_sta_debugfs(void *priv, void *priv_sta,
- struct dentry *dir)
-{
- struct sta_rate_control *srctrl = priv_sta;
-
- srctrl->tx_avg_rate_num_dentry =
- debugfs_create_file("rc_simple_sta_tx_avg_rate_num", 0400,
- dir, srctrl, &sta_tx_avg_rate_num_ops);
- srctrl->tx_avg_rate_sum_dentry =
- debugfs_create_file("rc_simple_sta_tx_avg_rate_sum", 0400,
- dir, srctrl, &sta_tx_avg_rate_sum_ops);
-}
-
-static void rate_control_simple_remove_sta_debugfs(void *priv, void *priv_sta)
-{
- struct sta_rate_control *srctrl = priv_sta;
-
- debugfs_remove(srctrl->tx_avg_rate_sum_dentry);
- debugfs_remove(srctrl->tx_avg_rate_num_dentry);
-}
-#endif
-
-static struct rate_control_ops rate_control_simple = {
- .module = THIS_MODULE,
- .name = "simple",
- .tx_status = rate_control_simple_tx_status,
- .get_rate = rate_control_simple_get_rate,
- .rate_init = rate_control_simple_rate_init,
- .clear = rate_control_simple_clear,
- .alloc = rate_control_simple_alloc,
- .free = rate_control_simple_free,
- .alloc_sta = rate_control_simple_alloc_sta,
- .free_sta = rate_control_simple_free_sta,
-#ifdef CONFIG_MAC80211_DEBUGFS
- .add_sta_debugfs = rate_control_simple_add_sta_debugfs,
- .remove_sta_debugfs = rate_control_simple_remove_sta_debugfs,
-#endif
-};
-
-
-static int __init rate_control_simple_init(void)
-{
- return ieee80211_rate_control_register(&rate_control_simple);
-}
-
-
-static void __exit rate_control_simple_exit(void)
-{
- ieee80211_rate_control_unregister(&rate_control_simple);
-}
-
-
-subsys_initcall(rate_control_simple_init);
-module_exit(rate_control_simple_exit);
-
-MODULE_DESCRIPTION("Simple rate control algorithm for ieee80211");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * This regulatory domain control implementation is known to be incomplete
- * and confusing. mac80211 regulatory domain control will be significantly
- * reworked in the not-too-distant future.
- *
- * For now, drivers wishing to control which channels are and aren't available
- * are advised as follows:
- * - set the IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag
- * - continue to include *ALL* possible channels in the modes registered
- * through ieee80211_register_hwmode()
- * - for each allowable ieee80211_channel structure registered in the above
- * call, set the flag member to some meaningful value such as
- * IEEE80211_CHAN_W_SCAN | IEEE80211_CHAN_W_ACTIVE_SCAN |
- * IEEE80211_CHAN_W_IBSS.
- * - leave flag as 0 for non-allowable channels
- *
- * The usual implementation is for a driver to read a device EEPROM to
- * determine which regulatory domain it should be operating under, then
- * looking up the allowable channels in a driver-local table, then performing
- * the above.
- */
-
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-
-static int ieee80211_regdom = 0x10; /* FCC */
-module_param(ieee80211_regdom, int, 0444);
-MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain; 64=MKK");
-
-/*
- * If firmware is upgraded by the vendor, additional channels can be used based
- * on the new Japanese regulatory rules. This is indicated by setting
- * ieee80211_japan_5ghz module parameter to one when loading the 80211 kernel
- * module.
- */
-static int ieee80211_japan_5ghz /* = 0 */;
-module_param(ieee80211_japan_5ghz, int, 0444);
-MODULE_PARM_DESC(ieee80211_japan_5ghz, "Vendor-updated firmware for 5 GHz");
-
-
-struct ieee80211_channel_range {
- short start_freq;
- short end_freq;
- unsigned char power_level;
- unsigned char antenna_max;
-};
-
-static const struct ieee80211_channel_range ieee80211_fcc_channels[] = {
- { 2412, 2462, 27, 6 } /* IEEE 802.11b/g, channels 1..11 */,
- { 5180, 5240, 17, 6 } /* IEEE 802.11a, channels 36..48 */,
- { 5260, 5320, 23, 6 } /* IEEE 802.11a, channels 52..64 */,
- { 5745, 5825, 30, 6 } /* IEEE 802.11a, channels 149..165, outdoor */,
- { 0 }
-};
-
-static const struct ieee80211_channel_range ieee80211_mkk_channels[] = {
- { 2412, 2472, 20, 6 } /* IEEE 802.11b/g, channels 1..13 */,
- { 5170, 5240, 20, 6 } /* IEEE 802.11a, channels 34..48 */,
- { 5260, 5320, 20, 6 } /* IEEE 802.11a, channels 52..64 */,
- { 0 }
-};
-
-
-static const struct ieee80211_channel_range *channel_range =
- ieee80211_fcc_channels;
-
-
-static void ieee80211_unmask_channel(int mode, struct ieee80211_channel *chan)
-{
- int i;
-
- chan->flag = 0;
-
- for (i = 0; channel_range[i].start_freq; i++) {
- const struct ieee80211_channel_range *r = &channel_range[i];
- if (r->start_freq <= chan->freq && r->end_freq >= chan->freq) {
- if (ieee80211_regdom == 64 && !ieee80211_japan_5ghz &&
- chan->freq >= 5260 && chan->freq <= 5320) {
- /*
- * Skip new channels in Japan since the
- * firmware was not marked having been upgraded
- * by the vendor.
- */
- continue;
- }
-
- if (ieee80211_regdom == 0x10 &&
- (chan->freq == 5190 || chan->freq == 5210 ||
- chan->freq == 5230)) {
- /* Skip MKK channels when in FCC domain. */
- continue;
- }
-
- chan->flag |= IEEE80211_CHAN_W_SCAN |
- IEEE80211_CHAN_W_ACTIVE_SCAN |
- IEEE80211_CHAN_W_IBSS;
- chan->power_level = r->power_level;
- chan->antenna_max = r->antenna_max;
-
- if (ieee80211_regdom == 64 &&
- (chan->freq == 5170 || chan->freq == 5190 ||
- chan->freq == 5210 || chan->freq == 5230)) {
- /*
- * New regulatory rules in Japan have backwards
- * compatibility with old channels in 5.15-5.25
- * GHz band, but the station is not allowed to
- * use active scan on these old channels.
- */
- chan->flag &= ~IEEE80211_CHAN_W_ACTIVE_SCAN;
- }
-
- if (ieee80211_regdom == 64 &&
- (chan->freq == 5260 || chan->freq == 5280 ||
- chan->freq == 5300 || chan->freq == 5320)) {
- /*
- * IBSS is not allowed on 5.25-5.35 GHz band
- * due to radar detection requirements.
- */
- chan->flag &= ~IEEE80211_CHAN_W_IBSS;
- }
-
- break;
- }
- }
-}
-
-
-void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode)
-{
- int c;
- for (c = 0; c < mode->num_channels; c++)
- ieee80211_unmask_channel(mode->mode, &mode->channels[c]);
-}
-
-
-void ieee80211_regdomain_init(void)
-{
- if (ieee80211_regdom == 0x40)
- channel_range = ieee80211_mkk_channels;
-}
-
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/rcupdate.h>
-#include <net/mac80211.h>
-#include <net/ieee80211_radiotap.h>
-
-#include "ieee80211_i.h"
-#include "ieee80211_led.h"
-#include "wep.h"
-#include "wpa.h"
-#include "tkip.h"
-#include "wme.h"
-
-/*
- * monitor mode reception
- *
- * This function cleans up the SKB, i.e. it removes all the stuff
- * only useful for monitoring.
- */
-static struct sk_buff *remove_monitor_info(struct ieee80211_local *local,
- struct sk_buff *skb,
- int rtap_len)
-{
- skb_pull(skb, rtap_len);
-
- if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) {
- if (likely(skb->len > FCS_LEN))
- skb_trim(skb, skb->len - FCS_LEN);
- else {
- /* driver bug */
- WARN_ON(1);
- dev_kfree_skb(skb);
- skb = NULL;
- }
- }
-
- return skb;
-}
-
-static inline int should_drop_frame(struct ieee80211_rx_status *status,
- struct sk_buff *skb,
- int present_fcs_len,
- int radiotap_len)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-
- if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
- return 1;
- if (unlikely(skb->len < 16 + present_fcs_len + radiotap_len))
- return 1;
- if ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
- cpu_to_le16(IEEE80211_FTYPE_CTL))
- return 1;
- return 0;
-}
-
-/*
- * This function copies a received frame to all monitor interfaces and
- * returns a cleaned-up SKB that no longer includes the FCS nor the
- * radiotap header the driver might have added.
- */
-static struct sk_buff *
-ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
- struct ieee80211_rx_status *status)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_rate *rate;
- int needed_headroom = 0;
- struct ieee80211_rtap_hdr {
- struct ieee80211_radiotap_header hdr;
- u8 flags;
- u8 rate;
- __le16 chan_freq;
- __le16 chan_flags;
- u8 antsignal;
- u8 padding_for_rxflags;
- __le16 rx_flags;
- } __attribute__ ((packed)) *rthdr;
- struct sk_buff *skb, *skb2;
- struct net_device *prev_dev = NULL;
- int present_fcs_len = 0;
- int rtap_len = 0;
-
- /*
- * First, we may need to make a copy of the skb because
- * (1) we need to modify it for radiotap (if not present), and
- * (2) the other RX handlers will modify the skb we got.
- *
- * We don't need to, of course, if we aren't going to return
- * the SKB because it has a bad FCS/PLCP checksum.
- */
- if (status->flag & RX_FLAG_RADIOTAP)
- rtap_len = ieee80211_get_radiotap_len(origskb->data);
- else
- needed_headroom = sizeof(*rthdr);
-
- if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
- present_fcs_len = FCS_LEN;
-
- if (!local->monitors) {
- if (should_drop_frame(status, origskb, present_fcs_len,
- rtap_len)) {
- dev_kfree_skb(origskb);
- return NULL;
- }
-
- return remove_monitor_info(local, origskb, rtap_len);
- }
-
- if (should_drop_frame(status, origskb, present_fcs_len, rtap_len)) {
- /* only need to expand headroom if necessary */
- skb = origskb;
- origskb = NULL;
-
- /*
- * This shouldn't trigger often because most devices have an
- * RX header they pull before we get here, and that should
- * be big enough for our radiotap information. We should
- * probably export the length to drivers so that we can have
- * them allocate enough headroom to start with.
- */
- if (skb_headroom(skb) < needed_headroom &&
- pskb_expand_head(skb, sizeof(*rthdr), 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- return NULL;
- }
- } else {
- /*
- * Need to make a copy and possibly remove radiotap header
- * and FCS from the original.
- */
- skb = skb_copy_expand(origskb, needed_headroom, 0, GFP_ATOMIC);
-
- origskb = remove_monitor_info(local, origskb, rtap_len);
-
- if (!skb)
- return origskb;
- }
-
- /* if necessary, prepend radiotap information */
- if (!(status->flag & RX_FLAG_RADIOTAP)) {
- rthdr = (void *) skb_push(skb, sizeof(*rthdr));
- memset(rthdr, 0, sizeof(*rthdr));
- rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
- rthdr->hdr.it_present =
- cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
- (1 << IEEE80211_RADIOTAP_RATE) |
- (1 << IEEE80211_RADIOTAP_CHANNEL) |
- (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) |
- (1 << IEEE80211_RADIOTAP_RX_FLAGS));
- rthdr->flags = local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS ?
- IEEE80211_RADIOTAP_F_FCS : 0;
-
- /* FIXME: when radiotap gets a 'bad PLCP' flag use it here */
- rthdr->rx_flags = 0;
- if (status->flag &
- (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
- rthdr->rx_flags |=
- cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADFCS);
-
- rate = ieee80211_get_rate(local, status->phymode,
- status->rate);
- if (rate)
- rthdr->rate = rate->rate / 5;
-
- rthdr->chan_freq = cpu_to_le16(status->freq);
-
- if (status->phymode == MODE_IEEE80211A)
- rthdr->chan_flags =
- cpu_to_le16(IEEE80211_CHAN_OFDM |
- IEEE80211_CHAN_5GHZ);
- else
- rthdr->chan_flags =
- cpu_to_le16(IEEE80211_CHAN_DYN |
- IEEE80211_CHAN_2GHZ);
-
- rthdr->antsignal = status->ssi;
- }
-
- skb_set_mac_header(skb, 0);
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- skb->pkt_type = PACKET_OTHERHOST;
- skb->protocol = htons(ETH_P_802_2);
-
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- if (!netif_running(sdata->dev))
- continue;
-
- if (sdata->type != IEEE80211_IF_TYPE_MNTR)
- continue;
-
- if (prev_dev) {
- skb2 = skb_clone(skb, GFP_ATOMIC);
- if (skb2) {
- skb2->dev = prev_dev;
- netif_rx(skb2);
- }
- }
-
- prev_dev = sdata->dev;
- sdata->dev->stats.rx_packets++;
- sdata->dev->stats.rx_bytes += skb->len;
- }
-
- if (prev_dev) {
- skb->dev = prev_dev;
- netif_rx(skb);
- } else
- dev_kfree_skb(skb);
-
- return origskb;
-}
-
-
-/* pre-rx handlers
- *
- * these don't have dev/sdata fields in the rx data
- * The sta value should also not be used because it may
- * be NULL even though a STA (in IBSS mode) will be added.
- */
-
-static ieee80211_txrx_result
-ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx)
-{
- u8 *data = rx->skb->data;
- int tid;
-
- /* does the frame have a qos control field? */
- if (WLAN_FC_IS_QOS_DATA(rx->fc)) {
- u8 *qc = data + ieee80211_get_hdrlen(rx->fc) - QOS_CONTROL_LEN;
- /* frame has qos control */
- tid = qc[0] & QOS_CONTROL_TID_MASK;
- } else {
- if (unlikely((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)) {
- /* Separate TID for management frames */
- tid = NUM_RX_DATA_QUEUES - 1;
- } else {
- /* no qos control present */
- tid = 0; /* 802.1d - Best Effort */
- }
- }
-
- I802_DEBUG_INC(rx->local->wme_rx_queue[tid]);
- /* only a debug counter, sta might not be assigned properly yet */
- if (rx->sta)
- I802_DEBUG_INC(rx->sta->wme_rx_queue[tid]);
-
- rx->u.rx.queue = tid;
- /* Set skb->priority to 1d tag if highest order bit of TID is not set.
- * For now, set skb->priority to 0 for other cases. */
- rx->skb->priority = (tid > 7) ? 0 : tid;
-
- return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_rx_h_load_stats(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_local *local = rx->local;
- struct sk_buff *skb = rx->skb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u32 load = 0, hdrtime;
- struct ieee80211_rate *rate;
- struct ieee80211_hw_mode *mode = local->hw.conf.mode;
- int i;
-
- /* Estimate total channel use caused by this frame */
-
- if (unlikely(mode->num_rates < 0))
- return TXRX_CONTINUE;
-
- rate = &mode->rates[0];
- for (i = 0; i < mode->num_rates; i++) {
- if (mode->rates[i].val == rx->u.rx.status->rate) {
- rate = &mode->rates[i];
- break;
- }
- }
-
- /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
- * 1 usec = 1/8 * (1080 / 10) = 13.5 */
-
- if (mode->mode == MODE_IEEE80211A ||
- (mode->mode == MODE_IEEE80211G &&
- rate->flags & IEEE80211_RATE_ERP))
- hdrtime = CHAN_UTIL_HDR_SHORT;
- else
- hdrtime = CHAN_UTIL_HDR_LONG;
-
- load = hdrtime;
- if (!is_multicast_ether_addr(hdr->addr1))
- load += hdrtime;
-
- load += skb->len * rate->rate_inv;
-
- /* Divide channel_use by 8 to avoid wrapping around the counter */
- load >>= CHAN_UTIL_SHIFT;
- local->channel_use_raw += load;
- rx->u.rx.load = load;
-
- return TXRX_CONTINUE;
-}
-
-ieee80211_rx_handler ieee80211_rx_pre_handlers[] =
-{
- ieee80211_rx_h_parse_qos,
- ieee80211_rx_h_load_stats,
- NULL
-};
-
-/* rx handlers */
-
-static ieee80211_txrx_result
-ieee80211_rx_h_if_stats(struct ieee80211_txrx_data *rx)
-{
- if (rx->sta)
- rx->sta->channel_use_raw += rx->u.rx.load;
- rx->sdata->channel_use_raw += rx->u.rx.load;
- return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_rx_h_passive_scan(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_local *local = rx->local;
- struct sk_buff *skb = rx->skb;
-
- if (unlikely(local->sta_scanning != 0)) {
- ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status);
- return TXRX_QUEUED;
- }
-
- if (unlikely(rx->flags & IEEE80211_TXRXD_RXIN_SCAN)) {
- /* scanning finished during invoking of handlers */
- I802_DEBUG_INC(local->rx_handlers_drop_passive_scan);
- return TXRX_DROP;
- }
-
- return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_hdr *hdr;
- hdr = (struct ieee80211_hdr *) rx->skb->data;
-
- /* Drop duplicate 802.11 retransmissions (IEEE 802.11 Chap. 9.2.9) */
- if (rx->sta && !is_multicast_ether_addr(hdr->addr1)) {
- if (unlikely(rx->fc & IEEE80211_FCTL_RETRY &&
- rx->sta->last_seq_ctrl[rx->u.rx.queue] ==
- hdr->seq_ctrl)) {
- if (rx->flags & IEEE80211_TXRXD_RXRA_MATCH) {
- rx->local->dot11FrameDuplicateCount++;
- rx->sta->num_duplicates++;
- }
- return TXRX_DROP;
- } else
- rx->sta->last_seq_ctrl[rx->u.rx.queue] = hdr->seq_ctrl;
- }
-
- if (unlikely(rx->skb->len < 16)) {
- I802_DEBUG_INC(rx->local->rx_handlers_drop_short);
- return TXRX_DROP;
- }
-
- if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
- rx->skb->pkt_type = PACKET_OTHERHOST;
- else if (compare_ether_addr(rx->dev->dev_addr, hdr->addr1) == 0)
- rx->skb->pkt_type = PACKET_HOST;
- else if (is_multicast_ether_addr(hdr->addr1)) {
- if (is_broadcast_ether_addr(hdr->addr1))
- rx->skb->pkt_type = PACKET_BROADCAST;
- else
- rx->skb->pkt_type = PACKET_MULTICAST;
- } else
- rx->skb->pkt_type = PACKET_OTHERHOST;
-
- /* Drop disallowed frame classes based on STA auth/assoc state;
- * IEEE 802.11, Chap 5.5.
- *
- * 80211.o does filtering only based on association state, i.e., it
- * drops Class 3 frames from not associated stations. hostapd sends
- * deauth/disassoc frames when needed. In addition, hostapd is
- * responsible for filtering on both auth and assoc states.
- */
- if (unlikely(((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA ||
- ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL &&
- (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)) &&
- rx->sdata->type != IEEE80211_IF_TYPE_IBSS &&
- (!rx->sta || !(rx->sta->flags & WLAN_STA_ASSOC)))) {
- if ((!(rx->fc & IEEE80211_FCTL_FROMDS) &&
- !(rx->fc & IEEE80211_FCTL_TODS) &&
- (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
- || !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
- /* Drop IBSS frames and frames for other hosts
- * silently. */
- return TXRX_DROP;
- }
-
- return TXRX_DROP;
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
- int keyidx;
- int hdrlen;
- ieee80211_txrx_result result = TXRX_DROP;
- struct ieee80211_key *stakey = NULL;
-
- /*
- * Key selection 101
- *
- * There are three types of keys:
- * - GTK (group keys)
- * - PTK (pairwise keys)
- * - STK (station-to-station pairwise keys)
- *
- * When selecting a key, we have to distinguish between multicast
- * (including broadcast) and unicast frames, the latter can only
- * use PTKs and STKs while the former always use GTKs. Unless, of
- * course, actual WEP keys ("pre-RSNA") are used, then unicast
- * frames can also use key indizes like GTKs. Hence, if we don't
- * have a PTK/STK we check the key index for a WEP key.
- *
- * Note that in a regular BSS, multicast frames are sent by the
- * AP only, associated stations unicast the frame to the AP first
- * which then multicasts it on their behalf.
- *
- * There is also a slight problem in IBSS mode: GTKs are negotiated
- * with each station, that is something we don't currently handle.
- * The spec seems to expect that one negotiates the same key with
- * every station but there's no such requirement; VLANs could be
- * possible.
- */
-
- if (!(rx->fc & IEEE80211_FCTL_PROTECTED))
- return TXRX_CONTINUE;
-
- /*
- * No point in finding a key and decrypting if the frame is neither
- * addressed to us nor a multicast frame.
- */
- if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
- return TXRX_CONTINUE;
-
- if (rx->sta)
- stakey = rcu_dereference(rx->sta->key);
-
- if (!is_multicast_ether_addr(hdr->addr1) && stakey) {
- rx->key = stakey;
- } else {
- /*
- * The device doesn't give us the IV so we won't be
- * able to look up the key. That's ok though, we
- * don't need to decrypt the frame, we just won't
- * be able to keep statistics accurate.
- * Except for key threshold notifications, should
- * we somehow allow the driver to tell us which key
- * the hardware used if this flag is set?
- */
- if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
- (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED))
- return TXRX_CONTINUE;
-
- hdrlen = ieee80211_get_hdrlen(rx->fc);
-
- if (rx->skb->len < 8 + hdrlen)
- return TXRX_DROP; /* TODO: count this? */
-
- /*
- * no need to call ieee80211_wep_get_keyidx,
- * it verifies a bunch of things we've done already
- */
- keyidx = rx->skb->data[hdrlen + 3] >> 6;
-
- rx->key = rcu_dereference(rx->sdata->keys[keyidx]);
-
- /*
- * RSNA-protected unicast frames should always be sent with
- * pairwise or station-to-station keys, but for WEP we allow
- * using a key index as well.
- */
- if (rx->key && rx->key->conf.alg != ALG_WEP &&
- !is_multicast_ether_addr(hdr->addr1))
- rx->key = NULL;
- }
-
- if (rx->key) {
- rx->key->tx_rx_count++;
- /* TODO: add threshold stuff again */
- } else {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: RX protected frame,"
- " but have no key\n", rx->dev->name);
- return TXRX_DROP;
- }
-
- /* Check for weak IVs if possible */
- if (rx->sta && rx->key->conf.alg == ALG_WEP &&
- ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
- (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) ||
- !(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) &&
- ieee80211_wep_is_weak_iv(rx->skb, rx->key))
- rx->sta->wep_weak_iv_count++;
-
- switch (rx->key->conf.alg) {
- case ALG_WEP:
- result = ieee80211_crypto_wep_decrypt(rx);
- break;
- case ALG_TKIP:
- result = ieee80211_crypto_tkip_decrypt(rx);
- break;
- case ALG_CCMP:
- result = ieee80211_crypto_ccmp_decrypt(rx);
- break;
- }
-
- /* either the frame has been decrypted or will be dropped */
- rx->u.rx.status->flag |= RX_FLAG_DECRYPTED;
-
- return result;
-}
-
-static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta)
-{
- struct ieee80211_sub_if_data *sdata;
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
-
- if (sdata->bss)
- atomic_inc(&sdata->bss->num_sta_ps);
- sta->flags |= WLAN_STA_PS;
- sta->pspoll = 0;
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d enters power "
- "save mode\n", dev->name, MAC_ARG(sta->addr), sta->aid);
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-}
-
-static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- int sent = 0;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_tx_packet_data *pkt_data;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
- if (sdata->bss)
- atomic_dec(&sdata->bss->num_sta_ps);
- sta->flags &= ~(WLAN_STA_PS | WLAN_STA_TIM);
- sta->pspoll = 0;
- if (!skb_queue_empty(&sta->ps_tx_buf)) {
- if (local->ops->set_tim)
- local->ops->set_tim(local_to_hw(local), sta->aid, 0);
- if (sdata->bss)
- bss_tim_clear(local, sdata->bss, sta->aid);
- }
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d exits power "
- "save mode\n", dev->name, MAC_ARG(sta->addr), sta->aid);
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- /* Send all buffered frames to the station */
- while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
- sent++;
- pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
- dev_queue_xmit(skb);
- }
- while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
- local->total_ps_buffered--;
- sent++;
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d send PS frame "
- "since STA not sleeping anymore\n", dev->name,
- MAC_ARG(sta->addr), sta->aid);
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
- dev_queue_xmit(skb);
- }
-
- return sent;
-}
-
-static ieee80211_txrx_result
-ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx)
-{
- struct sta_info *sta = rx->sta;
- struct net_device *dev = rx->dev;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
-
- if (!sta)
- return TXRX_CONTINUE;
-
- /* Update last_rx only for IBSS packets which are for the current
- * BSSID to avoid keeping the current IBSS network alive in cases where
- * other STAs are using different BSSID. */
- if (rx->sdata->type == IEEE80211_IF_TYPE_IBSS) {
- u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len);
- if (compare_ether_addr(bssid, rx->sdata->u.sta.bssid) == 0)
- sta->last_rx = jiffies;
- } else
- if (!is_multicast_ether_addr(hdr->addr1) ||
- rx->sdata->type == IEEE80211_IF_TYPE_STA) {
- /* Update last_rx only for unicast frames in order to prevent
- * the Probe Request frames (the only broadcast frames from a
- * STA in infrastructure mode) from keeping a connection alive.
- */
- sta->last_rx = jiffies;
- }
-
- if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
- return TXRX_CONTINUE;
-
- sta->rx_fragments++;
- sta->rx_bytes += rx->skb->len;
- sta->last_rssi = rx->u.rx.status->ssi;
- sta->last_signal = rx->u.rx.status->signal;
- sta->last_noise = rx->u.rx.status->noise;
-
- if (!(rx->fc & IEEE80211_FCTL_MOREFRAGS)) {
- /* Change STA power saving mode only in the end of a frame
- * exchange sequence */
- if ((sta->flags & WLAN_STA_PS) && !(rx->fc & IEEE80211_FCTL_PM))
- rx->u.rx.sent_ps_buffered += ap_sta_ps_end(dev, sta);
- else if (!(sta->flags & WLAN_STA_PS) &&
- (rx->fc & IEEE80211_FCTL_PM))
- ap_sta_ps_start(dev, sta);
- }
-
- /* Drop data::nullfunc frames silently, since they are used only to
- * control station power saving mode. */
- if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_NULLFUNC) {
- I802_DEBUG_INC(rx->local->rx_handlers_drop_nullfunc);
- /* Update counter and free packet here to avoid counting this
- * as a dropped packed. */
- sta->rx_packets++;
- dev_kfree_skb(rx->skb);
- return TXRX_QUEUED;
- }
-
- return TXRX_CONTINUE;
-} /* ieee80211_rx_h_sta_process */
-
-static inline struct ieee80211_fragment_entry *
-ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata,
- unsigned int frag, unsigned int seq, int rx_queue,
- struct sk_buff **skb)
-{
- struct ieee80211_fragment_entry *entry;
- int idx;
-
- idx = sdata->fragment_next;
- entry = &sdata->fragments[sdata->fragment_next++];
- if (sdata->fragment_next >= IEEE80211_FRAGMENT_MAX)
- sdata->fragment_next = 0;
-
- if (!skb_queue_empty(&entry->skb_list)) {
-#ifdef CONFIG_MAC80211_DEBUG
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) entry->skb_list.next->data;
- printk(KERN_DEBUG "%s: RX reassembly removed oldest "
- "fragment entry (idx=%d age=%lu seq=%d last_frag=%d "
- "addr1=" MAC_FMT " addr2=" MAC_FMT "\n",
- sdata->dev->name, idx,
- jiffies - entry->first_frag_time, entry->seq,
- entry->last_frag, MAC_ARG(hdr->addr1),
- MAC_ARG(hdr->addr2));
-#endif /* CONFIG_MAC80211_DEBUG */
- __skb_queue_purge(&entry->skb_list);
- }
-
- __skb_queue_tail(&entry->skb_list, *skb); /* no need for locking */
- *skb = NULL;
- entry->first_frag_time = jiffies;
- entry->seq = seq;
- entry->rx_queue = rx_queue;
- entry->last_frag = frag;
- entry->ccmp = 0;
- entry->extra_len = 0;
-
- return entry;
-}
-
-static inline struct ieee80211_fragment_entry *
-ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata,
- u16 fc, unsigned int frag, unsigned int seq,
- int rx_queue, struct ieee80211_hdr *hdr)
-{
- struct ieee80211_fragment_entry *entry;
- int i, idx;
-
- idx = sdata->fragment_next;
- for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) {
- struct ieee80211_hdr *f_hdr;
- u16 f_fc;
-
- idx--;
- if (idx < 0)
- idx = IEEE80211_FRAGMENT_MAX - 1;
-
- entry = &sdata->fragments[idx];
- if (skb_queue_empty(&entry->skb_list) || entry->seq != seq ||
- entry->rx_queue != rx_queue ||
- entry->last_frag + 1 != frag)
- continue;
-
- f_hdr = (struct ieee80211_hdr *) entry->skb_list.next->data;
- f_fc = le16_to_cpu(f_hdr->frame_control);
-
- if ((fc & IEEE80211_FCTL_FTYPE) != (f_fc & IEEE80211_FCTL_FTYPE) ||
- compare_ether_addr(hdr->addr1, f_hdr->addr1) != 0 ||
- compare_ether_addr(hdr->addr2, f_hdr->addr2) != 0)
- continue;
-
- if (entry->first_frag_time + 2 * HZ < jiffies) {
- __skb_queue_purge(&entry->skb_list);
- continue;
- }
- return entry;
- }
-
- return NULL;
-}
-
-static ieee80211_txrx_result
-ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_hdr *hdr;
- u16 sc;
- unsigned int frag, seq;
- struct ieee80211_fragment_entry *entry;
- struct sk_buff *skb;
-
- hdr = (struct ieee80211_hdr *) rx->skb->data;
- sc = le16_to_cpu(hdr->seq_ctrl);
- frag = sc & IEEE80211_SCTL_FRAG;
-
- if (likely((!(rx->fc & IEEE80211_FCTL_MOREFRAGS) && frag == 0) ||
- (rx->skb)->len < 24 ||
- is_multicast_ether_addr(hdr->addr1))) {
- /* not fragmented */
- goto out;
- }
- I802_DEBUG_INC(rx->local->rx_handlers_fragments);
-
- seq = (sc & IEEE80211_SCTL_SEQ) >> 4;
-
- if (frag == 0) {
- /* This is the first fragment of a new frame. */
- entry = ieee80211_reassemble_add(rx->sdata, frag, seq,
- rx->u.rx.queue, &(rx->skb));
- if (rx->key && rx->key->conf.alg == ALG_CCMP &&
- (rx->fc & IEEE80211_FCTL_PROTECTED)) {
- /* Store CCMP PN so that we can verify that the next
- * fragment has a sequential PN value. */
- entry->ccmp = 1;
- memcpy(entry->last_pn,
- rx->key->u.ccmp.rx_pn[rx->u.rx.queue],
- CCMP_PN_LEN);
- }
- return TXRX_QUEUED;
- }
-
- /* This is a fragment for a frame that should already be pending in
- * fragment cache. Add this fragment to the end of the pending entry.
- */
- entry = ieee80211_reassemble_find(rx->sdata, rx->fc, frag, seq,
- rx->u.rx.queue, hdr);
- if (!entry) {
- I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag);
- return TXRX_DROP;
- }
-
- /* Verify that MPDUs within one MSDU have sequential PN values.
- * (IEEE 802.11i, 8.3.3.4.5) */
- if (entry->ccmp) {
- int i;
- u8 pn[CCMP_PN_LEN], *rpn;
- if (!rx->key || rx->key->conf.alg != ALG_CCMP)
- return TXRX_DROP;
- memcpy(pn, entry->last_pn, CCMP_PN_LEN);
- for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
- pn[i]++;
- if (pn[i])
- break;
- }
- rpn = rx->key->u.ccmp.rx_pn[rx->u.rx.queue];
- if (memcmp(pn, rpn, CCMP_PN_LEN) != 0) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: defrag: CCMP PN not "
- "sequential A2=" MAC_FMT
- " PN=%02x%02x%02x%02x%02x%02x "
- "(expected %02x%02x%02x%02x%02x%02x)\n",
- rx->dev->name, MAC_ARG(hdr->addr2),
- rpn[0], rpn[1], rpn[2], rpn[3], rpn[4],
- rpn[5], pn[0], pn[1], pn[2], pn[3],
- pn[4], pn[5]);
- return TXRX_DROP;
- }
- memcpy(entry->last_pn, pn, CCMP_PN_LEN);
- }
-
- skb_pull(rx->skb, ieee80211_get_hdrlen(rx->fc));
- __skb_queue_tail(&entry->skb_list, rx->skb);
- entry->last_frag = frag;
- entry->extra_len += rx->skb->len;
- if (rx->fc & IEEE80211_FCTL_MOREFRAGS) {
- rx->skb = NULL;
- return TXRX_QUEUED;
- }
-
- rx->skb = __skb_dequeue(&entry->skb_list);
- if (skb_tailroom(rx->skb) < entry->extra_len) {
- I802_DEBUG_INC(rx->local->rx_expand_skb_head2);
- if (unlikely(pskb_expand_head(rx->skb, 0, entry->extra_len,
- GFP_ATOMIC))) {
- I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag);
- __skb_queue_purge(&entry->skb_list);
- return TXRX_DROP;
- }
- }
- while ((skb = __skb_dequeue(&entry->skb_list))) {
- memcpy(skb_put(rx->skb, skb->len), skb->data, skb->len);
- dev_kfree_skb(skb);
- }
-
- /* Complete frame has been reassembled - process it now */
- rx->flags |= IEEE80211_TXRXD_FRAGMENTED;
-
- out:
- if (rx->sta)
- rx->sta->rx_packets++;
- if (is_multicast_ether_addr(hdr->addr1))
- rx->local->dot11MulticastReceivedFrameCount++;
- else
- ieee80211_led_rx(rx->local);
- return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
-{
- struct sk_buff *skb;
- int no_pending_pkts;
-
- if (likely(!rx->sta ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL ||
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PSPOLL ||
- !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)))
- return TXRX_CONTINUE;
-
- skb = skb_dequeue(&rx->sta->tx_filtered);
- if (!skb) {
- skb = skb_dequeue(&rx->sta->ps_tx_buf);
- if (skb)
- rx->local->total_ps_buffered--;
- }
- no_pending_pkts = skb_queue_empty(&rx->sta->tx_filtered) &&
- skb_queue_empty(&rx->sta->ps_tx_buf);
-
- if (skb) {
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) skb->data;
-
- /* tell TX path to send one frame even though the STA may
- * still remain is PS mode after this frame exchange */
- rx->sta->pspoll = 1;
-
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "STA " MAC_FMT " aid %d: PS Poll (entries "
- "after %d)\n",
- MAC_ARG(rx->sta->addr), rx->sta->aid,
- skb_queue_len(&rx->sta->ps_tx_buf));
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-
- /* Use MoreData flag to indicate whether there are more
- * buffered frames for this STA */
- if (no_pending_pkts) {
- hdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREDATA);
- rx->sta->flags &= ~WLAN_STA_TIM;
- } else
- hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
-
- dev_queue_xmit(skb);
-
- if (no_pending_pkts) {
- if (rx->local->ops->set_tim)
- rx->local->ops->set_tim(local_to_hw(rx->local),
- rx->sta->aid, 0);
- if (rx->sdata->bss)
- bss_tim_clear(rx->local, rx->sdata->bss, rx->sta->aid);
- }
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- } else if (!rx->u.rx.sent_ps_buffered) {
- printk(KERN_DEBUG "%s: STA " MAC_FMT " sent PS Poll even "
- "though there is no buffered frames for it\n",
- rx->dev->name, MAC_ARG(rx->sta->addr));
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-
- }
-
- /* Free PS Poll skb here instead of returning TXRX_DROP that would
- * count as an dropped frame. */
- dev_kfree_skb(rx->skb);
-
- return TXRX_QUEUED;
-}
-
-static ieee80211_txrx_result
-ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx)
-{
- u16 fc = rx->fc;
- u8 *data = rx->skb->data;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) data;
-
- if (!WLAN_FC_IS_QOS_DATA(fc))
- return TXRX_CONTINUE;
-
- /* remove the qos control field, update frame type and meta-data */
- memmove(data + 2, data, ieee80211_get_hdrlen(fc) - 2);
- hdr = (struct ieee80211_hdr *) skb_pull(rx->skb, 2);
- /* change frame type to non QOS */
- rx->fc = fc &= ~IEEE80211_STYPE_QOS_DATA;
- hdr->frame_control = cpu_to_le16(fc);
-
- return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_rx_h_802_1x_pae(struct ieee80211_txrx_data *rx)
-{
- if (rx->sdata->eapol && ieee80211_is_eapol(rx->skb) &&
- rx->sdata->type != IEEE80211_IF_TYPE_STA &&
- (rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
- return TXRX_CONTINUE;
-
- if (unlikely(rx->sdata->ieee802_1x &&
- (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
- (!rx->sta || !(rx->sta->flags & WLAN_STA_AUTHORIZED)) &&
- !ieee80211_is_eapol(rx->skb))) {
-#ifdef CONFIG_MAC80211_DEBUG
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) rx->skb->data;
- printk(KERN_DEBUG "%s: dropped frame from " MAC_FMT
- " (unauthorized port)\n", rx->dev->name,
- MAC_ARG(hdr->addr2));
-#endif /* CONFIG_MAC80211_DEBUG */
- return TXRX_DROP;
- }
-
- return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_rx_h_drop_unencrypted(struct ieee80211_txrx_data *rx)
-{
- /*
- * Pass through unencrypted frames if the hardware has
- * decrypted them already.
- */
- if (rx->u.rx.status->flag & RX_FLAG_DECRYPTED)
- return TXRX_CONTINUE;
-
- /* Drop unencrypted frames if key is set. */
- if (unlikely(!(rx->fc & IEEE80211_FCTL_PROTECTED) &&
- (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
- rx->sdata->drop_unencrypted &&
- (rx->sdata->eapol == 0 || !ieee80211_is_eapol(rx->skb)))) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: RX non-WEP frame, but expected "
- "encryption\n", rx->dev->name);
- return TXRX_DROP;
- }
- return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
-{
- struct net_device *dev = rx->dev;
- struct ieee80211_local *local = rx->local;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
- u16 fc, hdrlen, ethertype;
- u8 *payload;
- u8 dst[ETH_ALEN];
- u8 src[ETH_ALEN];
- struct sk_buff *skb = rx->skb, *skb2;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- fc = rx->fc;
- if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
- return TXRX_CONTINUE;
-
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
- return TXRX_DROP;
-
- hdrlen = ieee80211_get_hdrlen(fc);
-
- /* convert IEEE 802.11 header + possible LLC headers into Ethernet
- * header
- * IEEE 802.11 address fields:
- * ToDS FromDS Addr1 Addr2 Addr3 Addr4
- * 0 0 DA SA BSSID n/a
- * 0 1 DA BSSID SA n/a
- * 1 0 BSSID SA DA n/a
- * 1 1 RA TA DA SA
- */
-
- switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
- case IEEE80211_FCTL_TODS:
- /* BSSID SA DA */
- memcpy(dst, hdr->addr3, ETH_ALEN);
- memcpy(src, hdr->addr2, ETH_ALEN);
-
- if (unlikely(sdata->type != IEEE80211_IF_TYPE_AP &&
- sdata->type != IEEE80211_IF_TYPE_VLAN)) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: dropped ToDS frame "
- "(BSSID=" MAC_FMT
- " SA=" MAC_FMT
- " DA=" MAC_FMT ")\n",
- dev->name,
- MAC_ARG(hdr->addr1),
- MAC_ARG(hdr->addr2),
- MAC_ARG(hdr->addr3));
- return TXRX_DROP;
- }
- break;
- case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
- /* RA TA DA SA */
- memcpy(dst, hdr->addr3, ETH_ALEN);
- memcpy(src, hdr->addr4, ETH_ALEN);
-
- if (unlikely(sdata->type != IEEE80211_IF_TYPE_WDS)) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: dropped FromDS&ToDS "
- "frame (RA=" MAC_FMT
- " TA=" MAC_FMT " DA=" MAC_FMT
- " SA=" MAC_FMT ")\n",
- rx->dev->name,
- MAC_ARG(hdr->addr1),
- MAC_ARG(hdr->addr2),
- MAC_ARG(hdr->addr3),
- MAC_ARG(hdr->addr4));
- return TXRX_DROP;
- }
- break;
- case IEEE80211_FCTL_FROMDS:
- /* DA BSSID SA */
- memcpy(dst, hdr->addr1, ETH_ALEN);
- memcpy(src, hdr->addr3, ETH_ALEN);
-
- if (sdata->type != IEEE80211_IF_TYPE_STA ||
- (is_multicast_ether_addr(dst) &&
- !compare_ether_addr(src, dev->dev_addr)))
- return TXRX_DROP;
- break;
- case 0:
- /* DA SA BSSID */
- memcpy(dst, hdr->addr1, ETH_ALEN);
- memcpy(src, hdr->addr2, ETH_ALEN);
-
- if (sdata->type != IEEE80211_IF_TYPE_IBSS) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: dropped IBSS frame (DA="
- MAC_FMT " SA=" MAC_FMT " BSSID=" MAC_FMT
- ")\n",
- dev->name, MAC_ARG(hdr->addr1),
- MAC_ARG(hdr->addr2),
- MAC_ARG(hdr->addr3));
- }
- return TXRX_DROP;
- }
- break;
- }
-
- payload = skb->data + hdrlen;
-
- if (unlikely(skb->len - hdrlen < 8)) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: RX too short data frame "
- "payload\n", dev->name);
- }
- return TXRX_DROP;
- }
-
- ethertype = (payload[6] << 8) | payload[7];
-
- if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
- ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
- compare_ether_addr(payload, bridge_tunnel_header) == 0)) {
- /* remove RFC1042 or Bridge-Tunnel encapsulation and
- * replace EtherType */
- skb_pull(skb, hdrlen + 6);
- memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN);
- memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN);
- } else {
- struct ethhdr *ehdr;
- __be16 len;
- skb_pull(skb, hdrlen);
- len = htons(skb->len);
- ehdr = (struct ethhdr *) skb_push(skb, sizeof(struct ethhdr));
- memcpy(ehdr->h_dest, dst, ETH_ALEN);
- memcpy(ehdr->h_source, src, ETH_ALEN);
- ehdr->h_proto = len;
- }
- skb->dev = dev;
-
- skb2 = NULL;
-
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += skb->len;
-
- if (local->bridge_packets && (sdata->type == IEEE80211_IF_TYPE_AP
- || sdata->type == IEEE80211_IF_TYPE_VLAN) &&
- (rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
- if (is_multicast_ether_addr(skb->data)) {
- /* send multicast frames both to higher layers in
- * local net stack and back to the wireless media */
- skb2 = skb_copy(skb, GFP_ATOMIC);
- if (!skb2 && net_ratelimit())
- printk(KERN_DEBUG "%s: failed to clone "
- "multicast frame\n", dev->name);
- } else {
- struct sta_info *dsta;
- dsta = sta_info_get(local, skb->data);
- if (dsta && !dsta->dev) {
- if (net_ratelimit())
- printk(KERN_DEBUG "Station with null "
- "dev structure!\n");
- } else if (dsta && dsta->dev == dev) {
- /* Destination station is associated to this
- * AP, so send the frame directly to it and
- * do not pass the frame to local net stack.
- */
- skb2 = skb;
- skb = NULL;
- }
- if (dsta)
- sta_info_put(dsta);
- }
- }
-
- if (skb) {
- /* deliver to local stack */
- skb->protocol = eth_type_trans(skb, dev);
- memset(skb->cb, 0, sizeof(skb->cb));
- netif_rx(skb);
- }
-
- if (skb2) {
- /* send to wireless media */
- skb2->protocol = __constant_htons(ETH_P_802_3);
- skb_set_network_header(skb2, 0);
- skb_set_mac_header(skb2, 0);
- dev_queue_xmit(skb2);
- }
-
- return TXRX_QUEUED;
-}
-
-static ieee80211_txrx_result
-ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_sub_if_data *sdata;
-
- if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
- return TXRX_DROP;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
- if ((sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) &&
- !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
- ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->u.rx.status);
- else
- return TXRX_DROP;
-
- return TXRX_QUEUED;
-}
-
-static inline ieee80211_txrx_result __ieee80211_invoke_rx_handlers(
- struct ieee80211_local *local,
- ieee80211_rx_handler *handlers,
- struct ieee80211_txrx_data *rx,
- struct sta_info *sta)
-{
- ieee80211_rx_handler *handler;
- ieee80211_txrx_result res = TXRX_DROP;
-
- for (handler = handlers; *handler != NULL; handler++) {
- res = (*handler)(rx);
-
- switch (res) {
- case TXRX_CONTINUE:
- continue;
- case TXRX_DROP:
- I802_DEBUG_INC(local->rx_handlers_drop);
- if (sta)
- sta->rx_dropped++;
- break;
- case TXRX_QUEUED:
- I802_DEBUG_INC(local->rx_handlers_queued);
- break;
- }
- break;
- }
-
- if (res == TXRX_DROP)
- dev_kfree_skb(rx->skb);
- return res;
-}
-
-static inline void ieee80211_invoke_rx_handlers(struct ieee80211_local *local,
- ieee80211_rx_handler *handlers,
- struct ieee80211_txrx_data *rx,
- struct sta_info *sta)
-{
- if (__ieee80211_invoke_rx_handlers(local, handlers, rx, sta) ==
- TXRX_CONTINUE)
- dev_kfree_skb(rx->skb);
-}
-
-static void ieee80211_rx_michael_mic_report(struct net_device *dev,
- struct ieee80211_hdr *hdr,
- struct sta_info *sta,
- struct ieee80211_txrx_data *rx)
-{
- int keyidx, hdrlen;
-
- hdrlen = ieee80211_get_hdrlen_from_skb(rx->skb);
- if (rx->skb->len >= hdrlen + 4)
- keyidx = rx->skb->data[hdrlen + 3] >> 6;
- else
- keyidx = -1;
-
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: TKIP hwaccel reported Michael MIC "
- "failure from " MAC_FMT " to " MAC_FMT " keyidx=%d\n",
- dev->name, MAC_ARG(hdr->addr2), MAC_ARG(hdr->addr1),
- keyidx);
-
- if (!sta) {
- /*
- * Some hardware seem to generate incorrect Michael MIC
- * reports; ignore them to avoid triggering countermeasures.
- */
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
- "error for unknown address " MAC_FMT "\n",
- dev->name, MAC_ARG(hdr->addr2));
- goto ignore;
- }
-
- if (!(rx->fc & IEEE80211_FCTL_PROTECTED)) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
- "error for a frame with no PROTECTED flag (src "
- MAC_FMT ")\n", dev->name, MAC_ARG(hdr->addr2));
- goto ignore;
- }
-
- if (rx->sdata->type == IEEE80211_IF_TYPE_AP && keyidx) {
- /*
- * APs with pairwise keys should never receive Michael MIC
- * errors for non-zero keyidx because these are reserved for
- * group keys and only the AP is sending real multicast
- * frames in the BSS.
- */
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: ignored Michael MIC error for "
- "a frame with non-zero keyidx (%d)"
- " (src " MAC_FMT ")\n", dev->name, keyidx,
- MAC_ARG(hdr->addr2));
- goto ignore;
- }
-
- if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
- ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
- "error for a frame that cannot be encrypted "
- "(fc=0x%04x) (src " MAC_FMT ")\n",
- dev->name, rx->fc, MAC_ARG(hdr->addr2));
- goto ignore;
- }
-
- mac80211_ev_michael_mic_failure(rx->dev, keyidx, hdr);
- ignore:
- dev_kfree_skb(rx->skb);
- rx->skb = NULL;
-}
-
-ieee80211_rx_handler ieee80211_rx_handlers[] =
-{
- ieee80211_rx_h_if_stats,
- ieee80211_rx_h_passive_scan,
- ieee80211_rx_h_check,
- ieee80211_rx_h_decrypt,
- ieee80211_rx_h_sta_process,
- ieee80211_rx_h_defragment,
- ieee80211_rx_h_ps_poll,
- ieee80211_rx_h_michael_mic_verify,
- /* this must be after decryption - so header is counted in MPDU mic
- * must be before pae and data, so QOS_DATA format frames
- * are not passed to user space by these functions
- */
- ieee80211_rx_h_remove_qos_control,
- ieee80211_rx_h_802_1x_pae,
- ieee80211_rx_h_drop_unencrypted,
- ieee80211_rx_h_data,
- ieee80211_rx_h_mgmt,
- NULL
-};
-
-/* main receive path */
-
-static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
- u8 *bssid, struct ieee80211_txrx_data *rx,
- struct ieee80211_hdr *hdr)
-{
- int multicast = is_multicast_ether_addr(hdr->addr1);
-
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_STA:
- if (!bssid)
- return 0;
- if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
- if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
- return 0;
- rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
- } else if (!multicast &&
- compare_ether_addr(sdata->dev->dev_addr,
- hdr->addr1) != 0) {
- if (!(sdata->dev->flags & IFF_PROMISC))
- return 0;
- rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
- }
- break;
- case IEEE80211_IF_TYPE_IBSS:
- if (!bssid)
- return 0;
- if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
- if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
- return 0;
- rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
- } else if (!multicast &&
- compare_ether_addr(sdata->dev->dev_addr,
- hdr->addr1) != 0) {
- if (!(sdata->dev->flags & IFF_PROMISC))
- return 0;
- rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
- } else if (!rx->sta)
- rx->sta = ieee80211_ibss_add_sta(sdata->dev, rx->skb,
- bssid, hdr->addr2);
- break;
- case IEEE80211_IF_TYPE_VLAN:
- case IEEE80211_IF_TYPE_AP:
- if (!bssid) {
- if (compare_ether_addr(sdata->dev->dev_addr,
- hdr->addr1))
- return 0;
- } else if (!ieee80211_bssid_match(bssid,
- sdata->dev->dev_addr)) {
- if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
- return 0;
- rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
- }
- if (sdata->dev == sdata->local->mdev &&
- !(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
- /* do not receive anything via
- * master device when not scanning */
- return 0;
- break;
- case IEEE80211_IF_TYPE_WDS:
- if (bssid ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
- return 0;
- if (compare_ether_addr(sdata->u.wds.remote_addr, hdr->addr2))
- return 0;
- break;
- case IEEE80211_IF_TYPE_MNTR:
- /* take everything */
- break;
- case IEEE80211_IF_TYPE_INVALID:
- /* should never get here */
- WARN_ON(1);
- break;
- }
-
- return 1;
-}
-
-/*
- * This is the receive path handler. It is called by a low level driver when an
- * 802.11 MPDU is received from the hardware.
- */
-void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_rx_status *status)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
- struct ieee80211_hdr *hdr;
- struct ieee80211_txrx_data rx;
- u16 type;
- int prepres;
- struct ieee80211_sub_if_data *prev = NULL;
- struct sk_buff *skb_new;
- u8 *bssid;
-
- /*
- * key references and virtual interfaces are protected using RCU
- * and this requires that we are in a read-side RCU section during
- * receive processing
- */
- rcu_read_lock();
-
- /*
- * Frames with failed FCS/PLCP checksum are not returned,
- * all other frames are returned without radiotap header
- * if it was previously present.
- * Also, frames with less than 16 bytes are dropped.
- */
- skb = ieee80211_rx_monitor(local, skb, status);
- if (!skb) {
- rcu_read_unlock();
- return;
- }
-
- hdr = (struct ieee80211_hdr *) skb->data;
- memset(&rx, 0, sizeof(rx));
- rx.skb = skb;
- rx.local = local;
-
- rx.u.rx.status = status;
- rx.fc = le16_to_cpu(hdr->frame_control);
- type = rx.fc & IEEE80211_FCTL_FTYPE;
-
- if (type == IEEE80211_FTYPE_DATA || type == IEEE80211_FTYPE_MGMT)
- local->dot11ReceivedFragmentCount++;
-
- sta = rx.sta = sta_info_get(local, hdr->addr2);
- if (sta) {
- rx.dev = rx.sta->dev;
- rx.sdata = IEEE80211_DEV_TO_SUB_IF(rx.dev);
- }
-
- if ((status->flag & RX_FLAG_MMIC_ERROR)) {
- ieee80211_rx_michael_mic_report(local->mdev, hdr, sta, &rx);
- goto end;
- }
-
- if (unlikely(local->sta_scanning))
- rx.flags |= IEEE80211_TXRXD_RXIN_SCAN;
-
- if (__ieee80211_invoke_rx_handlers(local, local->rx_pre_handlers, &rx,
- sta) != TXRX_CONTINUE)
- goto end;
- skb = rx.skb;
-
- if (sta && !(sta->flags & (WLAN_STA_WDS | WLAN_STA_ASSOC_AP)) &&
- !atomic_read(&local->iff_promiscs) &&
- !is_multicast_ether_addr(hdr->addr1)) {
- rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
- ieee80211_invoke_rx_handlers(local, local->rx_handlers, &rx,
- rx.sta);
- sta_info_put(sta);
- rcu_read_unlock();
- return;
- }
-
- bssid = ieee80211_get_bssid(hdr, skb->len);
-
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- if (!netif_running(sdata->dev))
- continue;
-
- if (sdata->type == IEEE80211_IF_TYPE_MNTR)
- continue;
-
- rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
- prepres = prepare_for_handlers(sdata, bssid, &rx, hdr);
- /* prepare_for_handlers can change sta */
- sta = rx.sta;
-
- if (!prepres)
- continue;
-
- /*
- * frame is destined for this interface, but if it's not
- * also for the previous one we handle that after the
- * loop to avoid copying the SKB once too much
- */
-
- if (!prev) {
- prev = sdata;
- continue;
- }
-
- /*
- * frame was destined for the previous interface
- * so invoke RX handlers for it
- */
-
- skb_new = skb_copy(skb, GFP_ATOMIC);
- if (!skb_new) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: failed to copy "
- "multicast frame for %s",
- wiphy_name(local->hw.wiphy),
- prev->dev->name);
- continue;
- }
- rx.skb = skb_new;
- rx.dev = prev->dev;
- rx.sdata = prev;
- ieee80211_invoke_rx_handlers(local, local->rx_handlers,
- &rx, sta);
- prev = sdata;
- }
- if (prev) {
- rx.skb = skb;
- rx.dev = prev->dev;
- rx.sdata = prev;
- ieee80211_invoke_rx_handlers(local, local->rx_handlers,
- &rx, sta);
- } else
- dev_kfree_skb(skb);
-
- end:
- rcu_read_unlock();
-
- if (sta)
- sta_info_put(sta);
-}
-EXPORT_SYMBOL(__ieee80211_rx);
-
-/* This is a version of the rx handler that can be called from hard irq
- * context. Post the skb on the queue and schedule the tasklet */
-void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_rx_status *status)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- BUILD_BUG_ON(sizeof(struct ieee80211_rx_status) > sizeof(skb->cb));
-
- skb->dev = local->mdev;
- /* copy status into skb->cb for use by tasklet */
- memcpy(skb->cb, status, sizeof(*status));
- skb->pkt_type = IEEE80211_RX_MSG;
- skb_queue_tail(&local->skb_queue, skb);
- tasklet_schedule(&local->tasklet);
-}
-EXPORT_SYMBOL(ieee80211_rx_irqsafe);
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/if_arp.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "sta_info.h"
-#include "debugfs_sta.h"
-
-/* Caller must hold local->sta_lock */
-static void sta_info_hash_add(struct ieee80211_local *local,
- struct sta_info *sta)
-{
- sta->hnext = local->sta_hash[STA_HASH(sta->addr)];
- local->sta_hash[STA_HASH(sta->addr)] = sta;
-}
-
-
-/* Caller must hold local->sta_lock */
-static int sta_info_hash_del(struct ieee80211_local *local,
- struct sta_info *sta)
-{
- struct sta_info *s;
-
- s = local->sta_hash[STA_HASH(sta->addr)];
- if (!s)
- return -ENOENT;
- if (s == sta) {
- local->sta_hash[STA_HASH(sta->addr)] = s->hnext;
- return 0;
- }
-
- while (s->hnext && s->hnext != sta)
- s = s->hnext;
- if (s->hnext) {
- s->hnext = sta->hnext;
- return 0;
- }
-
- return -ENOENT;
-}
-
-struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr)
-{
- struct sta_info *sta;
-
- read_lock_bh(&local->sta_lock);
- sta = local->sta_hash[STA_HASH(addr)];
- while (sta) {
- if (memcmp(sta->addr, addr, ETH_ALEN) == 0) {
- __sta_info_get(sta);
- break;
- }
- sta = sta->hnext;
- }
- read_unlock_bh(&local->sta_lock);
-
- return sta;
-}
-EXPORT_SYMBOL(sta_info_get);
-
-int sta_info_min_txrate_get(struct ieee80211_local *local)
-{
- struct sta_info *sta;
- struct ieee80211_hw_mode *mode;
- int min_txrate = 9999999;
- int i;
-
- read_lock_bh(&local->sta_lock);
- mode = local->oper_hw_mode;
- for (i = 0; i < STA_HASH_SIZE; i++) {
- sta = local->sta_hash[i];
- while (sta) {
- if (sta->txrate < min_txrate)
- min_txrate = sta->txrate;
- sta = sta->hnext;
- }
- }
- read_unlock_bh(&local->sta_lock);
- if (min_txrate == 9999999)
- min_txrate = 0;
-
- return mode->rates[min_txrate].rate;
-}
-
-
-static void sta_info_release(struct kref *kref)
-{
- struct sta_info *sta = container_of(kref, struct sta_info, kref);
- struct ieee80211_local *local = sta->local;
- struct sk_buff *skb;
-
- /* free sta structure; it has already been removed from
- * hash table etc. external structures. Make sure that all
- * buffered frames are release (one might have been added
- * after sta_info_free() was called). */
- while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
- local->total_ps_buffered--;
- dev_kfree_skb_any(skb);
- }
- while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
- dev_kfree_skb_any(skb);
- }
- rate_control_free_sta(sta->rate_ctrl, sta->rate_ctrl_priv);
- rate_control_put(sta->rate_ctrl);
- kfree(sta);
-}
-
-
-void sta_info_put(struct sta_info *sta)
-{
- kref_put(&sta->kref, sta_info_release);
-}
-EXPORT_SYMBOL(sta_info_put);
-
-
-struct sta_info * sta_info_add(struct ieee80211_local *local,
- struct net_device *dev, u8 *addr, gfp_t gfp)
-{
- struct sta_info *sta;
-
- sta = kzalloc(sizeof(*sta), gfp);
- if (!sta)
- return NULL;
-
- kref_init(&sta->kref);
-
- sta->rate_ctrl = rate_control_get(local->rate_ctrl);
- sta->rate_ctrl_priv = rate_control_alloc_sta(sta->rate_ctrl, gfp);
- if (!sta->rate_ctrl_priv) {
- rate_control_put(sta->rate_ctrl);
- kfree(sta);
- return NULL;
- }
-
- memcpy(sta->addr, addr, ETH_ALEN);
- sta->local = local;
- sta->dev = dev;
- skb_queue_head_init(&sta->ps_tx_buf);
- skb_queue_head_init(&sta->tx_filtered);
- __sta_info_get(sta); /* sta used by caller, decremented by
- * sta_info_put() */
- write_lock_bh(&local->sta_lock);
- list_add(&sta->list, &local->sta_list);
- local->num_sta++;
- sta_info_hash_add(local, sta);
- if (local->ops->sta_notify)
- local->ops->sta_notify(local_to_hw(local), dev->ifindex,
- STA_NOTIFY_ADD, addr);
- write_unlock_bh(&local->sta_lock);
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Added STA " MAC_FMT "\n",
- wiphy_name(local->hw.wiphy), MAC_ARG(addr));
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- /* debugfs entry adding might sleep, so schedule process
- * context task for adding entry for STAs that do not yet
- * have one. */
- queue_work(local->hw.workqueue, &local->sta_debugfs_add);
-#endif
-
- return sta;
-}
-
-/* Caller must hold local->sta_lock */
-void sta_info_remove(struct sta_info *sta)
-{
- struct ieee80211_local *local = sta->local;
- struct ieee80211_sub_if_data *sdata;
-
- /* don't do anything if we've been removed already */
- if (sta_info_hash_del(local, sta))
- return;
-
- list_del(&sta->list);
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
- if (sta->flags & WLAN_STA_PS) {
- sta->flags &= ~WLAN_STA_PS;
- if (sdata->bss)
- atomic_dec(&sdata->bss->num_sta_ps);
- }
- local->num_sta--;
- sta_info_remove_aid_ptr(sta);
-
-}
-
-void sta_info_free(struct sta_info *sta)
-{
- struct sk_buff *skb;
- struct ieee80211_local *local = sta->local;
-
- might_sleep();
-
- write_lock_bh(&local->sta_lock);
- sta_info_remove(sta);
- write_unlock_bh(&local->sta_lock);
-
- while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
- local->total_ps_buffered--;
- dev_kfree_skb(skb);
- }
- while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
- dev_kfree_skb(skb);
- }
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Removed STA " MAC_FMT "\n",
- wiphy_name(local->hw.wiphy), MAC_ARG(sta->addr));
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
-
- ieee80211_key_free(sta->key);
- sta->key = NULL;
-
- if (local->ops->sta_notify)
- local->ops->sta_notify(local_to_hw(local), sta->dev->ifindex,
- STA_NOTIFY_REMOVE, sta->addr);
-
- rate_control_remove_sta_debugfs(sta);
- ieee80211_sta_debugfs_remove(sta);
-
- sta_info_put(sta);
-}
-
-
-static inline int sta_info_buffer_expired(struct ieee80211_local *local,
- struct sta_info *sta,
- struct sk_buff *skb)
-{
- struct ieee80211_tx_packet_data *pkt_data;
- int timeout;
-
- if (!skb)
- return 0;
-
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
-
- /* Timeout: (2 * listen_interval * beacon_int * 1024 / 1000000) sec */
- timeout = (sta->listen_interval * local->hw.conf.beacon_int * 32 /
- 15625) * HZ;
- if (timeout < STA_TX_BUFFER_EXPIRE)
- timeout = STA_TX_BUFFER_EXPIRE;
- return time_after(jiffies, pkt_data->jiffies + timeout);
-}
-
-
-static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local,
- struct sta_info *sta)
-{
- unsigned long flags;
- struct sk_buff *skb;
-
- if (skb_queue_empty(&sta->ps_tx_buf))
- return;
-
- for (;;) {
- spin_lock_irqsave(&sta->ps_tx_buf.lock, flags);
- skb = skb_peek(&sta->ps_tx_buf);
- if (sta_info_buffer_expired(local, sta, skb)) {
- skb = __skb_dequeue(&sta->ps_tx_buf);
- if (skb_queue_empty(&sta->ps_tx_buf))
- sta->flags &= ~WLAN_STA_TIM;
- } else
- skb = NULL;
- spin_unlock_irqrestore(&sta->ps_tx_buf.lock, flags);
-
- if (skb) {
- local->total_ps_buffered--;
- printk(KERN_DEBUG "Buffered frame expired (STA "
- MAC_FMT ")\n", MAC_ARG(sta->addr));
- dev_kfree_skb(skb);
- } else
- break;
- }
-}
-
-
-static void sta_info_cleanup(unsigned long data)
-{
- struct ieee80211_local *local = (struct ieee80211_local *) data;
- struct sta_info *sta;
-
- read_lock_bh(&local->sta_lock);
- list_for_each_entry(sta, &local->sta_list, list) {
- __sta_info_get(sta);
- sta_info_cleanup_expire_buffered(local, sta);
- sta_info_put(sta);
- }
- read_unlock_bh(&local->sta_lock);
-
- local->sta_cleanup.expires = jiffies + STA_INFO_CLEANUP_INTERVAL;
- add_timer(&local->sta_cleanup);
-}
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-static void sta_info_debugfs_add_task(struct work_struct *work)
-{
- struct ieee80211_local *local =
- container_of(work, struct ieee80211_local, sta_debugfs_add);
- struct sta_info *sta, *tmp;
-
- while (1) {
- sta = NULL;
- read_lock_bh(&local->sta_lock);
- list_for_each_entry(tmp, &local->sta_list, list) {
- if (!tmp->debugfs.dir) {
- sta = tmp;
- __sta_info_get(sta);
- break;
- }
- }
- read_unlock_bh(&local->sta_lock);
-
- if (!sta)
- break;
-
- ieee80211_sta_debugfs_add(sta);
- rate_control_add_sta_debugfs(sta);
- sta_info_put(sta);
- }
-}
-#endif
-
-void sta_info_init(struct ieee80211_local *local)
-{
- rwlock_init(&local->sta_lock);
- INIT_LIST_HEAD(&local->sta_list);
-
- init_timer(&local->sta_cleanup);
- local->sta_cleanup.expires = jiffies + STA_INFO_CLEANUP_INTERVAL;
- local->sta_cleanup.data = (unsigned long) local;
- local->sta_cleanup.function = sta_info_cleanup;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- INIT_WORK(&local->sta_debugfs_add, sta_info_debugfs_add_task);
-#endif
-}
-
-int sta_info_start(struct ieee80211_local *local)
-{
- add_timer(&local->sta_cleanup);
- return 0;
-}
-
-void sta_info_stop(struct ieee80211_local *local)
-{
- del_timer(&local->sta_cleanup);
- sta_info_flush(local, NULL);
-}
-
-void sta_info_remove_aid_ptr(struct sta_info *sta)
-{
- struct ieee80211_sub_if_data *sdata;
-
- if (sta->aid <= 0)
- return;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
-
- if (sdata->local->ops->set_tim)
- sdata->local->ops->set_tim(local_to_hw(sdata->local),
- sta->aid, 0);
- if (sdata->bss)
- __bss_tim_clear(sdata->bss, sta->aid);
-}
-
-
-/**
- * sta_info_flush - flush matching STA entries from the STA table
- * @local: local interface data
- * @dev: matching rule for the net device (sta->dev) or %NULL to match all STAs
- */
-void sta_info_flush(struct ieee80211_local *local, struct net_device *dev)
-{
- struct sta_info *sta, *tmp;
- LIST_HEAD(tmp_list);
-
- write_lock_bh(&local->sta_lock);
- list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
- if (!dev || dev == sta->dev) {
- __sta_info_get(sta);
- sta_info_remove(sta);
- list_add_tail(&sta->list, &tmp_list);
- }
- write_unlock_bh(&local->sta_lock);
-
- list_for_each_entry_safe(sta, tmp, &tmp_list, list) {
- sta_info_free(sta);
- sta_info_put(sta);
- }
-}
+++ /dev/null
-/*
- * Copyright 2002-2005, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef STA_INFO_H
-#define STA_INFO_H
-
-#include <linux/list.h>
-#include <linux/types.h>
-#include <linux/if_ether.h>
-#include <linux/kref.h>
-#include "ieee80211_key.h"
-
-/* Stations flags (struct sta_info::flags) */
-#define WLAN_STA_AUTH BIT(0)
-#define WLAN_STA_ASSOC BIT(1)
-#define WLAN_STA_PS BIT(2)
-#define WLAN_STA_TIM BIT(3) /* TIM bit is on for PS stations */
-#define WLAN_STA_PERM BIT(4) /* permanent; do not remove entry on expiration */
-#define WLAN_STA_AUTHORIZED BIT(5) /* If 802.1X is used, this flag is
- * controlling whether STA is authorized to
- * send and receive non-IEEE 802.1X frames
- */
-#define WLAN_STA_SHORT_PREAMBLE BIT(7)
-/* whether this is an AP that we are associated with as a client */
-#define WLAN_STA_ASSOC_AP BIT(8)
-#define WLAN_STA_WME BIT(9)
-#define WLAN_STA_WDS BIT(27)
-
-
-struct sta_info {
- struct kref kref;
- struct list_head list;
- struct sta_info *hnext; /* next entry in hash table list */
-
- struct ieee80211_local *local;
-
- u8 addr[ETH_ALEN];
- u16 aid; /* STA's unique AID (1..2007), 0 = not yet assigned */
- u32 flags; /* WLAN_STA_ */
-
- struct sk_buff_head ps_tx_buf; /* buffer of TX frames for station in
- * power saving state */
- int pspoll; /* whether STA has send a PS Poll frame */
- struct sk_buff_head tx_filtered; /* buffer of TX frames that were
- * already given to low-level driver,
- * but were filtered */
- int clear_dst_mask;
-
- unsigned long rx_packets, tx_packets; /* number of RX/TX MSDUs */
- unsigned long rx_bytes, tx_bytes;
- unsigned long tx_retry_failed, tx_retry_count;
- unsigned long tx_filtered_count;
-
- unsigned int wep_weak_iv_count; /* number of RX frames with weak IV */
-
- unsigned long last_rx;
- u32 supp_rates; /* bitmap of supported rates in local->curr_rates */
- int txrate; /* index in local->curr_rates */
- int last_txrate; /* last rate used to send a frame to this STA */
- int last_nonerp_idx;
-
- struct net_device *dev; /* which net device is this station associated
- * to */
-
- struct ieee80211_key *key;
-
- u32 tx_num_consecutive_failures;
- u32 tx_num_mpdu_ok;
- u32 tx_num_mpdu_fail;
-
- struct rate_control_ref *rate_ctrl;
- void *rate_ctrl_priv;
-
- /* last received seq/frag number from this STA (per RX queue) */
- __le16 last_seq_ctrl[NUM_RX_DATA_QUEUES];
- unsigned long num_duplicates; /* number of duplicate frames received
- * from this STA */
- unsigned long tx_fragments; /* number of transmitted MPDUs */
- unsigned long rx_fragments; /* number of received MPDUs */
- unsigned long rx_dropped; /* number of dropped MPDUs from this STA */
-
- int last_rssi; /* RSSI of last received frame from this STA */
- int last_signal; /* signal of last received frame from this STA */
- int last_noise; /* noise of last received frame from this STA */
- int last_ack_rssi[3]; /* RSSI of last received ACKs from this STA */
- unsigned long last_ack;
- int channel_use;
- int channel_use_raw;
-
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
- unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
-#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
-
- u16 listen_interval;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct sta_info_debugfsdentries {
- struct dentry *dir;
- struct dentry *flags;
- struct dentry *num_ps_buf_frames;
- struct dentry *last_ack_rssi;
- struct dentry *last_ack_ms;
- struct dentry *inactive_ms;
- struct dentry *last_seq_ctrl;
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- struct dentry *wme_rx_queue;
- struct dentry *wme_tx_queue;
-#endif
- } debugfs;
-#endif
-};
-
-
-/* Maximum number of concurrently registered stations */
-#define MAX_STA_COUNT 2007
-
-#define STA_HASH_SIZE 256
-#define STA_HASH(sta) (sta[5])
-
-
-/* Maximum number of frames to buffer per power saving station */
-#define STA_MAX_TX_BUFFER 128
-
-/* Minimum buffered frame expiry time. If STA uses listen interval that is
- * smaller than this value, the minimum value here is used instead. */
-#define STA_TX_BUFFER_EXPIRE (10 * HZ)
-
-/* How often station data is cleaned up (e.g., expiration of buffered frames)
- */
-#define STA_INFO_CLEANUP_INTERVAL (10 * HZ)
-
-static inline void __sta_info_get(struct sta_info *sta)
-{
- kref_get(&sta->kref);
-}
-
-struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr);
-int sta_info_min_txrate_get(struct ieee80211_local *local);
-void sta_info_put(struct sta_info *sta);
-struct sta_info * sta_info_add(struct ieee80211_local *local,
- struct net_device *dev, u8 *addr, gfp_t gfp);
-void sta_info_remove(struct sta_info *sta);
-void sta_info_free(struct sta_info *sta);
-void sta_info_init(struct ieee80211_local *local);
-int sta_info_start(struct ieee80211_local *local);
-void sta_info_stop(struct ieee80211_local *local);
-void sta_info_remove_aid_ptr(struct sta_info *sta);
-void sta_info_flush(struct ieee80211_local *local, struct net_device *dev);
-
-#endif /* STA_INFO_H */
+++ /dev/null
-/*
- * Copyright 2002-2004, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/netdevice.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_key.h"
-#include "tkip.h"
-#include "wep.h"
-
-
-/* TKIP key mixing functions */
-
-
-#define PHASE1_LOOP_COUNT 8
-
-
-/* 2-byte by 2-byte subset of the full AES S-box table; second part of this
- * table is identical to first part but byte-swapped */
-static const u16 tkip_sbox[256] =
-{
- 0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154,
- 0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A,
- 0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B,
- 0x41EC, 0xB367, 0x5FFD, 0x45EA, 0x23BF, 0x53F7, 0xE496, 0x9B5B,
- 0x75C2, 0xE11C, 0x3DAE, 0x4C6A, 0x6C5A, 0x7E41, 0xF502, 0x834F,
- 0x685C, 0x51F4, 0xD134, 0xF908, 0xE293, 0xAB73, 0x6253, 0x2A3F,
- 0x080C, 0x9552, 0x4665, 0x9D5E, 0x3028, 0x37A1, 0x0A0F, 0x2FB5,
- 0x0E09, 0x2436, 0x1B9B, 0xDF3D, 0xCD26, 0x4E69, 0x7FCD, 0xEA9F,
- 0x121B, 0x1D9E, 0x5874, 0x342E, 0x362D, 0xDCB2, 0xB4EE, 0x5BFB,
- 0xA4F6, 0x764D, 0xB761, 0x7DCE, 0x527B, 0xDD3E, 0x5E71, 0x1397,
- 0xA6F5, 0xB968, 0x0000, 0xC12C, 0x4060, 0xE31F, 0x79C8, 0xB6ED,
- 0xD4BE, 0x8D46, 0x67D9, 0x724B, 0x94DE, 0x98D4, 0xB0E8, 0x854A,
- 0xBB6B, 0xC52A, 0x4FE5, 0xED16, 0x86C5, 0x9AD7, 0x6655, 0x1194,
- 0x8ACF, 0xE910, 0x0406, 0xFE81, 0xA0F0, 0x7844, 0x25BA, 0x4BE3,
- 0xA2F3, 0x5DFE, 0x80C0, 0x058A, 0x3FAD, 0x21BC, 0x7048, 0xF104,
- 0x63DF, 0x77C1, 0xAF75, 0x4263, 0x2030, 0xE51A, 0xFD0E, 0xBF6D,
- 0x814C, 0x1814, 0x2635, 0xC32F, 0xBEE1, 0x35A2, 0x88CC, 0x2E39,
- 0x9357, 0x55F2, 0xFC82, 0x7A47, 0xC8AC, 0xBAE7, 0x322B, 0xE695,
- 0xC0A0, 0x1998, 0x9ED1, 0xA37F, 0x4466, 0x547E, 0x3BAB, 0x0B83,
- 0x8CCA, 0xC729, 0x6BD3, 0x283C, 0xA779, 0xBCE2, 0x161D, 0xAD76,
- 0xDB3B, 0x6456, 0x744E, 0x141E, 0x92DB, 0x0C0A, 0x486C, 0xB8E4,
- 0x9F5D, 0xBD6E, 0x43EF, 0xC4A6, 0x39A8, 0x31A4, 0xD337, 0xF28B,
- 0xD532, 0x8B43, 0x6E59, 0xDAB7, 0x018C, 0xB164, 0x9CD2, 0x49E0,
- 0xD8B4, 0xACFA, 0xF307, 0xCF25, 0xCAAF, 0xF48E, 0x47E9, 0x1018,
- 0x6FD5, 0xF088, 0x4A6F, 0x5C72, 0x3824, 0x57F1, 0x73C7, 0x9751,
- 0xCB23, 0xA17C, 0xE89C, 0x3E21, 0x96DD, 0x61DC, 0x0D86, 0x0F85,
- 0xE090, 0x7C42, 0x71C4, 0xCCAA, 0x90D8, 0x0605, 0xF701, 0x1C12,
- 0xC2A3, 0x6A5F, 0xAEF9, 0x69D0, 0x1791, 0x9958, 0x3A27, 0x27B9,
- 0xD938, 0xEB13, 0x2BB3, 0x2233, 0xD2BB, 0xA970, 0x0789, 0x33A7,
- 0x2DB6, 0x3C22, 0x1592, 0xC920, 0x8749, 0xAAFF, 0x5078, 0xA57A,
- 0x038F, 0x59F8, 0x0980, 0x1A17, 0x65DA, 0xD731, 0x84C6, 0xD0B8,
- 0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A,
-};
-
-
-static inline u16 Mk16(u8 x, u8 y)
-{
- return ((u16) x << 8) | (u16) y;
-}
-
-
-static inline u8 Hi8(u16 v)
-{
- return v >> 8;
-}
-
-
-static inline u8 Lo8(u16 v)
-{
- return v & 0xff;
-}
-
-
-static inline u16 Hi16(u32 v)
-{
- return v >> 16;
-}
-
-
-static inline u16 Lo16(u32 v)
-{
- return v & 0xffff;
-}
-
-
-static inline u16 RotR1(u16 v)
-{
- return (v >> 1) | ((v & 0x0001) << 15);
-}
-
-
-static inline u16 tkip_S(u16 val)
-{
- u16 a = tkip_sbox[Hi8(val)];
-
- return tkip_sbox[Lo8(val)] ^ Hi8(a) ^ (Lo8(a) << 8);
-}
-
-
-
-/* P1K := Phase1(TA, TK, TSC)
- * TA = transmitter address (48 bits)
- * TK = dot11DefaultKeyValue or dot11KeyMappingValue (128 bits)
- * TSC = TKIP sequence counter (48 bits, only 32 msb bits used)
- * P1K: 80 bits
- */
-static void tkip_mixing_phase1(const u8 *ta, const u8 *tk, u32 tsc_IV32,
- u16 *p1k)
-{
- int i, j;
-
- p1k[0] = Lo16(tsc_IV32);
- p1k[1] = Hi16(tsc_IV32);
- p1k[2] = Mk16(ta[1], ta[0]);
- p1k[3] = Mk16(ta[3], ta[2]);
- p1k[4] = Mk16(ta[5], ta[4]);
-
- for (i = 0; i < PHASE1_LOOP_COUNT; i++) {
- j = 2 * (i & 1);
- p1k[0] += tkip_S(p1k[4] ^ Mk16(tk[ 1 + j], tk[ 0 + j]));
- p1k[1] += tkip_S(p1k[0] ^ Mk16(tk[ 5 + j], tk[ 4 + j]));
- p1k[2] += tkip_S(p1k[1] ^ Mk16(tk[ 9 + j], tk[ 8 + j]));
- p1k[3] += tkip_S(p1k[2] ^ Mk16(tk[13 + j], tk[12 + j]));
- p1k[4] += tkip_S(p1k[3] ^ Mk16(tk[ 1 + j], tk[ 0 + j])) + i;
- }
-}
-
-
-static void tkip_mixing_phase2(const u16 *p1k, const u8 *tk, u16 tsc_IV16,
- u8 *rc4key)
-{
- u16 ppk[6];
- int i;
-
- ppk[0] = p1k[0];
- ppk[1] = p1k[1];
- ppk[2] = p1k[2];
- ppk[3] = p1k[3];
- ppk[4] = p1k[4];
- ppk[5] = p1k[4] + tsc_IV16;
-
- ppk[0] += tkip_S(ppk[5] ^ Mk16(tk[ 1], tk[ 0]));
- ppk[1] += tkip_S(ppk[0] ^ Mk16(tk[ 3], tk[ 2]));
- ppk[2] += tkip_S(ppk[1] ^ Mk16(tk[ 5], tk[ 4]));
- ppk[3] += tkip_S(ppk[2] ^ Mk16(tk[ 7], tk[ 6]));
- ppk[4] += tkip_S(ppk[3] ^ Mk16(tk[ 9], tk[ 8]));
- ppk[5] += tkip_S(ppk[4] ^ Mk16(tk[11], tk[10]));
- ppk[0] += RotR1(ppk[5] ^ Mk16(tk[13], tk[12]));
- ppk[1] += RotR1(ppk[0] ^ Mk16(tk[15], tk[14]));
- ppk[2] += RotR1(ppk[1]);
- ppk[3] += RotR1(ppk[2]);
- ppk[4] += RotR1(ppk[3]);
- ppk[5] += RotR1(ppk[4]);
-
- rc4key[0] = Hi8(tsc_IV16);
- rc4key[1] = (Hi8(tsc_IV16) | 0x20) & 0x7f;
- rc4key[2] = Lo8(tsc_IV16);
- rc4key[3] = Lo8((ppk[5] ^ Mk16(tk[1], tk[0])) >> 1);
-
- for (i = 0; i < 6; i++) {
- rc4key[4 + 2 * i] = Lo8(ppk[i]);
- rc4key[5 + 2 * i] = Hi8(ppk[i]);
- }
-}
-
-
-/* Add TKIP IV and Ext. IV at @pos. @iv0, @iv1, and @iv2 are the first octets
- * of the IV. Returns pointer to the octet following IVs (i.e., beginning of
- * the packet payload). */
-u8 * ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key,
- u8 iv0, u8 iv1, u8 iv2)
-{
- *pos++ = iv0;
- *pos++ = iv1;
- *pos++ = iv2;
- *pos++ = (key->conf.keyidx << 6) | (1 << 5) /* Ext IV */;
- *pos++ = key->u.tkip.iv32 & 0xff;
- *pos++ = (key->u.tkip.iv32 >> 8) & 0xff;
- *pos++ = (key->u.tkip.iv32 >> 16) & 0xff;
- *pos++ = (key->u.tkip.iv32 >> 24) & 0xff;
- return pos;
-}
-
-
-void ieee80211_tkip_gen_phase1key(struct ieee80211_key *key, u8 *ta,
- u16 *phase1key)
-{
- tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
- key->u.tkip.iv32, phase1key);
-}
-
-void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta,
- u8 *rc4key)
-{
- /* Calculate per-packet key */
- if (key->u.tkip.iv16 == 0 || !key->u.tkip.tx_initialized) {
- /* IV16 wrapped around - perform TKIP phase 1 */
- tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
- key->u.tkip.iv32, key->u.tkip.p1k);
- key->u.tkip.tx_initialized = 1;
- }
-
- tkip_mixing_phase2(key->u.tkip.p1k,
- &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
- key->u.tkip.iv16, rc4key);
-}
-
-/* Encrypt packet payload with TKIP using @key. @pos is a pointer to the
- * beginning of the buffer containing payload. This payload must include
- * headroom of eight octets for IV and Ext. IV and taildroom of four octets
- * for ICV. @payload_len is the length of payload (_not_ including extra
- * headroom and tailroom). @ta is the transmitter addresses. */
-void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
- struct ieee80211_key *key,
- u8 *pos, size_t payload_len, u8 *ta)
-{
- u8 rc4key[16];
-
- ieee80211_tkip_gen_rc4key(key, ta, rc4key);
- pos = ieee80211_tkip_add_iv(pos, key, rc4key[0], rc4key[1], rc4key[2]);
- ieee80211_wep_encrypt_data(tfm, rc4key, 16, pos, payload_len);
-}
-
-
-/* Decrypt packet payload with TKIP using @key. @pos is a pointer to the
- * beginning of the buffer containing IEEE 802.11 header payload, i.e.,
- * including IV, Ext. IV, real data, Michael MIC, ICV. @payload_len is the
- * length of payload, including IV, Ext. IV, MIC, ICV. */
-int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
- struct ieee80211_key *key,
- u8 *payload, size_t payload_len, u8 *ta,
- int only_iv, int queue,
- u32 *out_iv32, u16 *out_iv16)
-{
- u32 iv32;
- u32 iv16;
- u8 rc4key[16], keyid, *pos = payload;
- int res;
-
- if (payload_len < 12)
- return -1;
-
- iv16 = (pos[0] << 8) | pos[2];
- keyid = pos[3];
- iv32 = pos[4] | (pos[5] << 8) | (pos[6] << 16) | (pos[7] << 24);
- pos += 8;
-#ifdef CONFIG_TKIP_DEBUG
- {
- int i;
- printk(KERN_DEBUG "TKIP decrypt: data(len=%zd)", payload_len);
- for (i = 0; i < payload_len; i++)
- printk(" %02x", payload[i]);
- printk("\n");
- printk(KERN_DEBUG "TKIP decrypt: iv16=%04x iv32=%08x\n",
- iv16, iv32);
- }
-#endif /* CONFIG_TKIP_DEBUG */
-
- if (!(keyid & (1 << 5)))
- return TKIP_DECRYPT_NO_EXT_IV;
-
- if ((keyid >> 6) != key->conf.keyidx)
- return TKIP_DECRYPT_INVALID_KEYIDX;
-
- if (key->u.tkip.rx_initialized[queue] &&
- (iv32 < key->u.tkip.iv32_rx[queue] ||
- (iv32 == key->u.tkip.iv32_rx[queue] &&
- iv16 <= key->u.tkip.iv16_rx[queue]))) {
-#ifdef CONFIG_TKIP_DEBUG
- printk(KERN_DEBUG "TKIP replay detected for RX frame from "
- MAC_FMT " (RX IV (%04x,%02x) <= prev. IV (%04x,%02x)\n",
- MAC_ARG(ta),
- iv32, iv16, key->u.tkip.iv32_rx[queue],
- key->u.tkip.iv16_rx[queue]);
-#endif /* CONFIG_TKIP_DEBUG */
- return TKIP_DECRYPT_REPLAY;
- }
-
- if (only_iv) {
- res = TKIP_DECRYPT_OK;
- key->u.tkip.rx_initialized[queue] = 1;
- goto done;
- }
-
- if (!key->u.tkip.rx_initialized[queue] ||
- key->u.tkip.iv32_rx[queue] != iv32) {
- key->u.tkip.rx_initialized[queue] = 1;
- /* IV16 wrapped around - perform TKIP phase 1 */
- tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
- iv32, key->u.tkip.p1k_rx[queue]);
-#ifdef CONFIG_TKIP_DEBUG
- {
- int i;
- printk(KERN_DEBUG "TKIP decrypt: Phase1 TA=" MAC_FMT
- " TK=", MAC_ARG(ta));
- for (i = 0; i < 16; i++)
- printk("%02x ",
- key->conf.key[
- ALG_TKIP_TEMP_ENCR_KEY + i]);
- printk("\n");
- printk(KERN_DEBUG "TKIP decrypt: P1K=");
- for (i = 0; i < 5; i++)
- printk("%04x ", key->u.tkip.p1k_rx[queue][i]);
- printk("\n");
- }
-#endif /* CONFIG_TKIP_DEBUG */
- }
-
- tkip_mixing_phase2(key->u.tkip.p1k_rx[queue],
- &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
- iv16, rc4key);
-#ifdef CONFIG_TKIP_DEBUG
- {
- int i;
- printk(KERN_DEBUG "TKIP decrypt: Phase2 rc4key=");
- for (i = 0; i < 16; i++)
- printk("%02x ", rc4key[i]);
- printk("\n");
- }
-#endif /* CONFIG_TKIP_DEBUG */
-
- res = ieee80211_wep_decrypt_data(tfm, rc4key, 16, pos, payload_len - 12);
- done:
- if (res == TKIP_DECRYPT_OK) {
- /*
- * Record previously received IV, will be copied into the
- * key information after MIC verification. It is possible
- * that we don't catch replays of fragments but that's ok
- * because the Michael MIC verication will then fail.
- */
- *out_iv32 = iv32;
- *out_iv16 = iv16;
- }
-
- return res;
-}
-
-
+++ /dev/null
-/*
- * Copyright 2002-2004, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef TKIP_H
-#define TKIP_H
-
-#include <linux/types.h>
-#include <linux/crypto.h>
-#include "ieee80211_key.h"
-
-u8 * ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key,
- u8 iv0, u8 iv1, u8 iv2);
-void ieee80211_tkip_gen_phase1key(struct ieee80211_key *key, u8 *ta,
- u16 *phase1key);
-void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta,
- u8 *rc4key);
-void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
- struct ieee80211_key *key,
- u8 *pos, size_t payload_len, u8 *ta);
-enum {
- TKIP_DECRYPT_OK = 0,
- TKIP_DECRYPT_NO_EXT_IV = -1,
- TKIP_DECRYPT_INVALID_KEYIDX = -2,
- TKIP_DECRYPT_REPLAY = -3,
-};
-int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
- struct ieee80211_key *key,
- u8 *payload, size_t payload_len, u8 *ta,
- int only_iv, int queue,
- u32 *out_iv32, u16 *out_iv16);
-
-#endif /* TKIP_H */
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- *
- * Transmit and frame generation functions.
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/etherdevice.h>
-#include <linux/bitmap.h>
-#include <linux/rcupdate.h>
-#include <net/ieee80211_radiotap.h>
-#include <net/cfg80211.h>
-#include <net/mac80211.h>
-#include <asm/unaligned.h>
-
-#include "ieee80211_i.h"
-#include "ieee80211_led.h"
-#include "wep.h"
-#include "wpa.h"
-#include "wme.h"
-#include "ieee80211_rate.h"
-
-#define IEEE80211_TX_OK 0
-#define IEEE80211_TX_AGAIN 1
-#define IEEE80211_TX_FRAG_AGAIN 2
-
-/* misc utils */
-
-static inline void ieee80211_include_sequence(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_hdr *hdr)
-{
- /* Set the sequence number for this frame. */
- hdr->seq_ctrl = cpu_to_le16(sdata->sequence);
-
- /* Increase the sequence number. */
- sdata->sequence = (sdata->sequence + 0x10) & IEEE80211_SCTL_SEQ;
-}
-
-#ifdef CONFIG_MAC80211_LOWTX_FRAME_DUMP
-static void ieee80211_dump_frame(const char *ifname, const char *title,
- const struct sk_buff *skb)
-{
- const struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc;
- int hdrlen;
-
- printk(KERN_DEBUG "%s: %s (len=%d)", ifname, title, skb->len);
- if (skb->len < 4) {
- printk("\n");
- return;
- }
-
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
- if (hdrlen > skb->len)
- hdrlen = skb->len;
- if (hdrlen >= 4)
- printk(" FC=0x%04x DUR=0x%04x",
- fc, le16_to_cpu(hdr->duration_id));
- if (hdrlen >= 10)
- printk(" A1=" MAC_FMT, MAC_ARG(hdr->addr1));
- if (hdrlen >= 16)
- printk(" A2=" MAC_FMT, MAC_ARG(hdr->addr2));
- if (hdrlen >= 24)
- printk(" A3=" MAC_FMT, MAC_ARG(hdr->addr3));
- if (hdrlen >= 30)
- printk(" A4=" MAC_FMT, MAC_ARG(hdr->addr4));
- printk("\n");
-}
-#else /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
-static inline void ieee80211_dump_frame(const char *ifname, const char *title,
- struct sk_buff *skb)
-{
-}
-#endif /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
-
-static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
- int next_frag_len)
-{
- int rate, mrate, erp, dur, i;
- struct ieee80211_rate *txrate = tx->u.tx.rate;
- struct ieee80211_local *local = tx->local;
- struct ieee80211_hw_mode *mode = tx->u.tx.mode;
-
- erp = txrate->flags & IEEE80211_RATE_ERP;
-
- /*
- * data and mgmt (except PS Poll):
- * - during CFP: 32768
- * - during contention period:
- * if addr1 is group address: 0
- * if more fragments = 0 and addr1 is individual address: time to
- * transmit one ACK plus SIFS
- * if more fragments = 1 and addr1 is individual address: time to
- * transmit next fragment plus 2 x ACK plus 3 x SIFS
- *
- * IEEE 802.11, 9.6:
- * - control response frame (CTS or ACK) shall be transmitted using the
- * same rate as the immediately previous frame in the frame exchange
- * sequence, if this rate belongs to the PHY mandatory rates, or else
- * at the highest possible rate belonging to the PHY rates in the
- * BSSBasicRateSet
- */
-
- if ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) {
- /* TODO: These control frames are not currently sent by
- * 80211.o, but should they be implemented, this function
- * needs to be updated to support duration field calculation.
- *
- * RTS: time needed to transmit pending data/mgmt frame plus
- * one CTS frame plus one ACK frame plus 3 x SIFS
- * CTS: duration of immediately previous RTS minus time
- * required to transmit CTS and its SIFS
- * ACK: 0 if immediately previous directed data/mgmt had
- * more=0, with more=1 duration in ACK frame is duration
- * from previous frame minus time needed to transmit ACK
- * and its SIFS
- * PS Poll: BIT(15) | BIT(14) | aid
- */
- return 0;
- }
-
- /* data/mgmt */
- if (0 /* FIX: data/mgmt during CFP */)
- return 32768;
-
- if (group_addr) /* Group address as the destination - no ACK */
- return 0;
-
- /* Individual destination address:
- * IEEE 802.11, Ch. 9.6 (after IEEE 802.11g changes)
- * CTS and ACK frames shall be transmitted using the highest rate in
- * basic rate set that is less than or equal to the rate of the
- * immediately previous frame and that is using the same modulation
- * (CCK or OFDM). If no basic rate set matches with these requirements,
- * the highest mandatory rate of the PHY that is less than or equal to
- * the rate of the previous frame is used.
- * Mandatory rates for IEEE 802.11g PHY: 1, 2, 5.5, 11, 6, 12, 24 Mbps
- */
- rate = -1;
- mrate = 10; /* use 1 Mbps if everything fails */
- for (i = 0; i < mode->num_rates; i++) {
- struct ieee80211_rate *r = &mode->rates[i];
- if (r->rate > txrate->rate)
- break;
-
- if (IEEE80211_RATE_MODULATION(txrate->flags) !=
- IEEE80211_RATE_MODULATION(r->flags))
- continue;
-
- if (r->flags & IEEE80211_RATE_BASIC)
- rate = r->rate;
- else if (r->flags & IEEE80211_RATE_MANDATORY)
- mrate = r->rate;
- }
- if (rate == -1) {
- /* No matching basic rate found; use highest suitable mandatory
- * PHY rate */
- rate = mrate;
- }
-
- /* Time needed to transmit ACK
- * (10 bytes + 4-byte FCS = 112 bits) plus SIFS; rounded up
- * to closest integer */
-
- dur = ieee80211_frame_duration(local, 10, rate, erp,
- tx->sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
-
- if (next_frag_len) {
- /* Frame is fragmented: duration increases with time needed to
- * transmit next fragment plus ACK and 2 x SIFS. */
- dur *= 2; /* ACK + SIFS */
- /* next fragment */
- dur += ieee80211_frame_duration(local, next_frag_len,
- txrate->rate, erp,
- tx->sdata->flags &
- IEEE80211_SDATA_SHORT_PREAMBLE);
- }
-
- return dur;
-}
-
-static inline int __ieee80211_queue_stopped(const struct ieee80211_local *local,
- int queue)
-{
- return test_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]);
-}
-
-static inline int __ieee80211_queue_pending(const struct ieee80211_local *local,
- int queue)
-{
- return test_bit(IEEE80211_LINK_STATE_PENDING, &local->state[queue]);
-}
-
-static int inline is_ieee80211_device(struct net_device *dev,
- struct net_device *master)
-{
- return (wdev_priv(dev->ieee80211_ptr) ==
- wdev_priv(master->ieee80211_ptr));
-}
-
-/* tx handlers */
-
-static ieee80211_txrx_result
-ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
-{
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- struct sk_buff *skb = tx->skb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- u32 sta_flags;
-
- if (unlikely(tx->flags & IEEE80211_TXRXD_TX_INJECTED))
- return TXRX_CONTINUE;
-
- if (unlikely(tx->local->sta_scanning != 0) &&
- ((tx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ))
- return TXRX_DROP;
-
- if (tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED)
- return TXRX_CONTINUE;
-
- sta_flags = tx->sta ? tx->sta->flags : 0;
-
- if (likely(tx->flags & IEEE80211_TXRXD_TXUNICAST)) {
- if (unlikely(!(sta_flags & WLAN_STA_ASSOC) &&
- tx->sdata->type != IEEE80211_IF_TYPE_IBSS &&
- (tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: dropped data frame to not "
- "associated station " MAC_FMT "\n",
- tx->dev->name, MAC_ARG(hdr->addr1));
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc);
- return TXRX_DROP;
- }
- } else {
- if (unlikely((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- tx->local->num_sta == 0 &&
- tx->sdata->type != IEEE80211_IF_TYPE_IBSS)) {
- /*
- * No associated STAs - no need to send multicast
- * frames.
- */
- return TXRX_DROP;
- }
- return TXRX_CONTINUE;
- }
-
- if (unlikely(/* !injected && */ tx->sdata->ieee802_1x &&
- !(sta_flags & WLAN_STA_AUTHORIZED))) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: dropped frame to " MAC_FMT
- " (unauthorized port)\n", tx->dev->name,
- MAC_ARG(hdr->addr1));
-#endif
- I802_DEBUG_INC(tx->local->tx_handlers_drop_unauth_port);
- return TXRX_DROP;
- }
-
- return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_tx_h_sequence(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
-
- if (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control)) >= 24)
- ieee80211_include_sequence(tx->sdata, hdr);
-
- return TXRX_CONTINUE;
-}
-
-/* This function is called whenever the AP is about to exceed the maximum limit
- * of buffered frames for power saving STAs. This situation should not really
- * happen often during normal operation, so dropping the oldest buffered packet
- * from each queue should be OK to make some room for new frames. */
-static void purge_old_ps_buffers(struct ieee80211_local *local)
-{
- int total = 0, purged = 0;
- struct sk_buff *skb;
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
-
- /*
- * virtual interfaces are protected by RCU
- */
- rcu_read_lock();
-
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- struct ieee80211_if_ap *ap;
- if (sdata->dev == local->mdev ||
- sdata->type != IEEE80211_IF_TYPE_AP)
- continue;
- ap = &sdata->u.ap;
- skb = skb_dequeue(&ap->ps_bc_buf);
- if (skb) {
- purged++;
- dev_kfree_skb(skb);
- }
- total += skb_queue_len(&ap->ps_bc_buf);
- }
- rcu_read_unlock();
-
- read_lock_bh(&local->sta_lock);
- list_for_each_entry(sta, &local->sta_list, list) {
- skb = skb_dequeue(&sta->ps_tx_buf);
- if (skb) {
- purged++;
- dev_kfree_skb(skb);
- }
- total += skb_queue_len(&sta->ps_tx_buf);
- }
- read_unlock_bh(&local->sta_lock);
-
- local->total_ps_buffered = total;
- printk(KERN_DEBUG "%s: PS buffers full - purged %d frames\n",
- wiphy_name(local->hw.wiphy), purged);
-}
-
-static inline ieee80211_txrx_result
-ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
-{
- /* broadcast/multicast frame */
- /* If any of the associated stations is in power save mode,
- * the frame is buffered to be sent after DTIM beacon frame */
- if ((tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) &&
- tx->sdata->type != IEEE80211_IF_TYPE_WDS &&
- tx->sdata->bss && atomic_read(&tx->sdata->bss->num_sta_ps) &&
- !(tx->fc & IEEE80211_FCTL_ORDER)) {
- if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
- purge_old_ps_buffers(tx->local);
- if (skb_queue_len(&tx->sdata->bss->ps_bc_buf) >=
- AP_MAX_BC_BUFFER) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: BC TX buffer full - "
- "dropping the oldest frame\n",
- tx->dev->name);
- }
- dev_kfree_skb(skb_dequeue(&tx->sdata->bss->ps_bc_buf));
- } else
- tx->local->total_ps_buffered++;
- skb_queue_tail(&tx->sdata->bss->ps_bc_buf, tx->skb);
- return TXRX_QUEUED;
- }
-
- return TXRX_CONTINUE;
-}
-
-static inline ieee80211_txrx_result
-ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
-{
- struct sta_info *sta = tx->sta;
-
- if (unlikely(!sta ||
- ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
- (tx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP)))
- return TXRX_CONTINUE;
-
- if (unlikely((sta->flags & WLAN_STA_PS) && !sta->pspoll)) {
- struct ieee80211_tx_packet_data *pkt_data;
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "STA " MAC_FMT " aid %d: PS buffer (entries "
- "before %d)\n",
- MAC_ARG(sta->addr), sta->aid,
- skb_queue_len(&sta->ps_tx_buf));
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- sta->flags |= WLAN_STA_TIM;
- if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
- purge_old_ps_buffers(tx->local);
- if (skb_queue_len(&sta->ps_tx_buf) >= STA_MAX_TX_BUFFER) {
- struct sk_buff *old = skb_dequeue(&sta->ps_tx_buf);
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: STA " MAC_FMT " TX "
- "buffer full - dropping oldest frame\n",
- tx->dev->name, MAC_ARG(sta->addr));
- }
- dev_kfree_skb(old);
- } else
- tx->local->total_ps_buffered++;
- /* Queue frame to be sent after STA sends an PS Poll frame */
- if (skb_queue_empty(&sta->ps_tx_buf)) {
- if (tx->local->ops->set_tim)
- tx->local->ops->set_tim(local_to_hw(tx->local),
- sta->aid, 1);
- if (tx->sdata->bss)
- bss_tim_set(tx->local, tx->sdata->bss, sta->aid);
- }
- pkt_data = (struct ieee80211_tx_packet_data *)tx->skb->cb;
- pkt_data->jiffies = jiffies;
- skb_queue_tail(&sta->ps_tx_buf, tx->skb);
- return TXRX_QUEUED;
- }
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- else if (unlikely(sta->flags & WLAN_STA_PS)) {
- printk(KERN_DEBUG "%s: STA " MAC_FMT " in PS mode, but pspoll "
- "set -> send frame\n", tx->dev->name,
- MAC_ARG(sta->addr));
- }
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- sta->pspoll = 0;
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx)
-{
- if (unlikely(tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED))
- return TXRX_CONTINUE;
-
- if (tx->flags & IEEE80211_TXRXD_TXUNICAST)
- return ieee80211_tx_h_unicast_ps_buf(tx);
- else
- return ieee80211_tx_h_multicast_ps_buf(tx);
-}
-
-
-
-
-static ieee80211_txrx_result
-ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_key *key;
-
- if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
- tx->key = NULL;
- else if (tx->sta && (key = rcu_dereference(tx->sta->key)))
- tx->key = key;
- else if ((key = rcu_dereference(tx->sdata->default_key)))
- tx->key = key;
- else if (tx->sdata->drop_unencrypted &&
- !(tx->sdata->eapol && ieee80211_is_eapol(tx->skb))) {
- I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted);
- return TXRX_DROP;
- } else {
- tx->key = NULL;
- tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
- }
-
- if (tx->key) {
- tx->key->tx_rx_count++;
- /* TODO: add threshold stuff again */
- }
-
- return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- size_t hdrlen, per_fragm, num_fragm, payload_len, left;
- struct sk_buff **frags, *first, *frag;
- int i;
- u16 seq;
- u8 *pos;
- int frag_threshold = tx->local->fragmentation_threshold;
-
- if (!(tx->flags & IEEE80211_TXRXD_FRAGMENTED))
- return TXRX_CONTINUE;
-
- first = tx->skb;
-
- hdrlen = ieee80211_get_hdrlen(tx->fc);
- payload_len = first->len - hdrlen;
- per_fragm = frag_threshold - hdrlen - FCS_LEN;
- num_fragm = (payload_len + per_fragm - 1) / per_fragm;
-
- frags = kzalloc(num_fragm * sizeof(struct sk_buff *), GFP_ATOMIC);
- if (!frags)
- goto fail;
-
- hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREFRAGS);
- seq = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ;
- pos = first->data + hdrlen + per_fragm;
- left = payload_len - per_fragm;
- for (i = 0; i < num_fragm - 1; i++) {
- struct ieee80211_hdr *fhdr;
- size_t copylen;
-
- if (left <= 0)
- goto fail;
-
- /* reserve enough extra head and tail room for possible
- * encryption */
- frag = frags[i] =
- dev_alloc_skb(tx->local->tx_headroom +
- frag_threshold +
- IEEE80211_ENCRYPT_HEADROOM +
- IEEE80211_ENCRYPT_TAILROOM);
- if (!frag)
- goto fail;
- /* Make sure that all fragments use the same priority so
- * that they end up using the same TX queue */
- frag->priority = first->priority;
- skb_reserve(frag, tx->local->tx_headroom +
- IEEE80211_ENCRYPT_HEADROOM);
- fhdr = (struct ieee80211_hdr *) skb_put(frag, hdrlen);
- memcpy(fhdr, first->data, hdrlen);
- if (i == num_fragm - 2)
- fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS);
- fhdr->seq_ctrl = cpu_to_le16(seq | ((i + 1) & IEEE80211_SCTL_FRAG));
- copylen = left > per_fragm ? per_fragm : left;
- memcpy(skb_put(frag, copylen), pos, copylen);
-
- pos += copylen;
- left -= copylen;
- }
- skb_trim(first, hdrlen + per_fragm);
-
- tx->u.tx.num_extra_frag = num_fragm - 1;
- tx->u.tx.extra_frag = frags;
-
- return TXRX_CONTINUE;
-
- fail:
- printk(KERN_DEBUG "%s: failed to fragment frame\n", tx->dev->name);
- if (frags) {
- for (i = 0; i < num_fragm - 1; i++)
- if (frags[i])
- dev_kfree_skb(frags[i]);
- kfree(frags);
- }
- I802_DEBUG_INC(tx->local->tx_handlers_drop_fragment);
- return TXRX_DROP;
-}
-
-static ieee80211_txrx_result
-ieee80211_tx_h_encrypt(struct ieee80211_txrx_data *tx)
-{
- if (!tx->key)
- return TXRX_CONTINUE;
-
- switch (tx->key->conf.alg) {
- case ALG_WEP:
- return ieee80211_crypto_wep_encrypt(tx);
- case ALG_TKIP:
- return ieee80211_crypto_tkip_encrypt(tx);
- case ALG_CCMP:
- return ieee80211_crypto_ccmp_encrypt(tx);
- }
-
- /* not reached */
- WARN_ON(1);
- return TXRX_DROP;
-}
-
-static ieee80211_txrx_result
-ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
-{
- struct rate_control_extra extra;
-
- if (likely(!tx->u.tx.rate)) {
- memset(&extra, 0, sizeof(extra));
- extra.mode = tx->u.tx.mode;
- extra.ethertype = tx->ethertype;
-
- tx->u.tx.rate = rate_control_get_rate(tx->local, tx->dev,
- tx->skb, &extra);
- if (unlikely(extra.probe != NULL)) {
- tx->u.tx.control->flags |=
- IEEE80211_TXCTL_RATE_CTRL_PROBE;
- tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
- tx->u.tx.control->alt_retry_rate = tx->u.tx.rate->val;
- tx->u.tx.rate = extra.probe;
- } else
- tx->u.tx.control->alt_retry_rate = -1;
-
- if (!tx->u.tx.rate)
- return TXRX_DROP;
- } else
- tx->u.tx.control->alt_retry_rate = -1;
-
- if (tx->u.tx.mode->mode == MODE_IEEE80211G &&
- (tx->sdata->flags & IEEE80211_SDATA_USE_PROTECTION) &&
- (tx->flags & IEEE80211_TXRXD_FRAGMENTED) && extra.nonerp) {
- tx->u.tx.last_frag_rate = tx->u.tx.rate;
- if (extra.probe)
- tx->flags &= ~IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
- else
- tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
- tx->u.tx.rate = extra.nonerp;
- tx->u.tx.control->rate = extra.nonerp;
- tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
- } else {
- tx->u.tx.last_frag_rate = tx->u.tx.rate;
- tx->u.tx.control->rate = tx->u.tx.rate;
- }
- tx->u.tx.control->tx_rate = tx->u.tx.rate->val;
-
- return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 fc = le16_to_cpu(hdr->frame_control);
- u16 dur;
- struct ieee80211_tx_control *control = tx->u.tx.control;
- struct ieee80211_hw_mode *mode = tx->u.tx.mode;
-
- if (!control->retry_limit) {
- if (!is_multicast_ether_addr(hdr->addr1)) {
- if (tx->skb->len + FCS_LEN > tx->local->rts_threshold
- && tx->local->rts_threshold <
- IEEE80211_MAX_RTS_THRESHOLD) {
- control->flags |=
- IEEE80211_TXCTL_USE_RTS_CTS;
- control->flags |=
- IEEE80211_TXCTL_LONG_RETRY_LIMIT;
- control->retry_limit =
- tx->local->long_retry_limit;
- } else {
- control->retry_limit =
- tx->local->short_retry_limit;
- }
- } else {
- control->retry_limit = 1;
- }
- }
-
- if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
- /* Do not use multiple retry rates when sending fragmented
- * frames.
- * TODO: The last fragment could still use multiple retry
- * rates. */
- control->alt_retry_rate = -1;
- }
-
- /* Use CTS protection for unicast frames sent using extended rates if
- * there are associated non-ERP stations and RTS/CTS is not configured
- * for the frame. */
- if (mode->mode == MODE_IEEE80211G &&
- (tx->u.tx.rate->flags & IEEE80211_RATE_ERP) &&
- (tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
- (tx->sdata->flags & IEEE80211_SDATA_USE_PROTECTION) &&
- !(control->flags & IEEE80211_TXCTL_USE_RTS_CTS))
- control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT;
-
- /* Transmit data frames using short preambles if the driver supports
- * short preambles at the selected rate and short preambles are
- * available on the network at the current point in time. */
- if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
- (tx->u.tx.rate->flags & IEEE80211_RATE_PREAMBLE2) &&
- (tx->sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
- (!tx->sta || (tx->sta->flags & WLAN_STA_SHORT_PREAMBLE))) {
- tx->u.tx.control->tx_rate = tx->u.tx.rate->val2;
- }
-
- /* Setup duration field for the first fragment of the frame. Duration
- * for remaining fragments will be updated when they are being sent
- * to low-level driver in ieee80211_tx(). */
- dur = ieee80211_duration(tx, is_multicast_ether_addr(hdr->addr1),
- (tx->flags & IEEE80211_TXRXD_FRAGMENTED) ?
- tx->u.tx.extra_frag[0]->len : 0);
- hdr->duration_id = cpu_to_le16(dur);
-
- if ((control->flags & IEEE80211_TXCTL_USE_RTS_CTS) ||
- (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) {
- struct ieee80211_rate *rate;
-
- /* Do not use multiple retry rates when using RTS/CTS */
- control->alt_retry_rate = -1;
-
- /* Use min(data rate, max base rate) as CTS/RTS rate */
- rate = tx->u.tx.rate;
- while (rate > mode->rates &&
- !(rate->flags & IEEE80211_RATE_BASIC))
- rate--;
-
- control->rts_cts_rate = rate->val;
- control->rts_rate = rate;
- }
-
- if (tx->sta) {
- tx->sta->tx_packets++;
- tx->sta->tx_fragments++;
- tx->sta->tx_bytes += tx->skb->len;
- if (tx->u.tx.extra_frag) {
- int i;
- tx->sta->tx_fragments += tx->u.tx.num_extra_frag;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- tx->sta->tx_bytes +=
- tx->u.tx.extra_frag[i]->len;
- }
- }
- }
-
- /*
- * Tell hardware to not encrypt when we had sw crypto.
- * Because we use the same flag to internally indicate that
- * no (software) encryption should be done, we have to set it
- * after all crypto handlers.
- */
- if (tx->key && !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
- tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
-
- return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_local *local = tx->local;
- struct ieee80211_hw_mode *mode = tx->u.tx.mode;
- struct sk_buff *skb = tx->skb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u32 load = 0, hdrtime;
-
- /* TODO: this could be part of tx_status handling, so that the number
- * of retries would be known; TX rate should in that case be stored
- * somewhere with the packet */
-
- /* Estimate total channel use caused by this frame */
-
- /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
- * 1 usec = 1/8 * (1080 / 10) = 13.5 */
-
- if (mode->mode == MODE_IEEE80211A ||
- (mode->mode == MODE_IEEE80211G &&
- tx->u.tx.rate->flags & IEEE80211_RATE_ERP))
- hdrtime = CHAN_UTIL_HDR_SHORT;
- else
- hdrtime = CHAN_UTIL_HDR_LONG;
-
- load = hdrtime;
- if (!is_multicast_ether_addr(hdr->addr1))
- load += hdrtime;
-
- if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_RTS_CTS)
- load += 2 * hdrtime;
- else if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
- load += hdrtime;
-
- load += skb->len * tx->u.tx.rate->rate_inv;
-
- if (tx->u.tx.extra_frag) {
- int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- load += 2 * hdrtime;
- load += tx->u.tx.extra_frag[i]->len *
- tx->u.tx.rate->rate;
- }
- }
-
- /* Divide channel_use by 8 to avoid wrapping around the counter */
- load >>= CHAN_UTIL_SHIFT;
- local->channel_use_raw += load;
- if (tx->sta)
- tx->sta->channel_use_raw += load;
- tx->sdata->channel_use_raw += load;
-
- return TXRX_CONTINUE;
-}
-
-/* TODO: implement register/unregister functions for adding TX/RX handlers
- * into ordered list */
-
-ieee80211_tx_handler ieee80211_tx_handlers[] =
-{
- ieee80211_tx_h_check_assoc,
- ieee80211_tx_h_sequence,
- ieee80211_tx_h_ps_buf,
- ieee80211_tx_h_select_key,
- ieee80211_tx_h_michael_mic_add,
- ieee80211_tx_h_fragment,
- ieee80211_tx_h_encrypt,
- ieee80211_tx_h_rate_ctrl,
- ieee80211_tx_h_misc,
- ieee80211_tx_h_load_stats,
- NULL
-};
-
-/* actual transmit path */
-
-/*
- * deal with packet injection down monitor interface
- * with Radiotap Header -- only called for monitor mode interface
- */
-static ieee80211_txrx_result
-__ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
- struct sk_buff *skb)
-{
- /*
- * this is the moment to interpret and discard the radiotap header that
- * must be at the start of the packet injected in Monitor mode
- *
- * Need to take some care with endian-ness since radiotap
- * args are little-endian
- */
-
- struct ieee80211_radiotap_iterator iterator;
- struct ieee80211_radiotap_header *rthdr =
- (struct ieee80211_radiotap_header *) skb->data;
- struct ieee80211_hw_mode *mode = tx->local->hw.conf.mode;
- int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len);
- struct ieee80211_tx_control *control = tx->u.tx.control;
-
- control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
- tx->flags |= IEEE80211_TXRXD_TX_INJECTED;
- tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
-
- /*
- * for every radiotap entry that is present
- * (ieee80211_radiotap_iterator_next returns -ENOENT when no more
- * entries present, or -EINVAL on error)
- */
-
- while (!ret) {
- int i, target_rate;
-
- ret = ieee80211_radiotap_iterator_next(&iterator);
-
- if (ret)
- continue;
-
- /* see if this argument is something we can use */
- switch (iterator.this_arg_index) {
- /*
- * You must take care when dereferencing iterator.this_arg
- * for multibyte types... the pointer is not aligned. Use
- * get_unaligned((type *)iterator.this_arg) to dereference
- * iterator.this_arg for type "type" safely on all arches.
- */
- case IEEE80211_RADIOTAP_RATE:
- /*
- * radiotap rate u8 is in 500kbps units eg, 0x02=1Mbps
- * ieee80211 rate int is in 100kbps units eg, 0x0a=1Mbps
- */
- target_rate = (*iterator.this_arg) * 5;
- for (i = 0; i < mode->num_rates; i++) {
- struct ieee80211_rate *r = &mode->rates[i];
-
- if (r->rate == target_rate) {
- tx->u.tx.rate = r;
- break;
- }
- }
- break;
-
- case IEEE80211_RADIOTAP_ANTENNA:
- /*
- * radiotap uses 0 for 1st ant, mac80211 is 1 for
- * 1st ant
- */
- control->antenna_sel_tx = (*iterator.this_arg) + 1;
- break;
-
- case IEEE80211_RADIOTAP_DBM_TX_POWER:
- control->power_level = *iterator.this_arg;
- break;
-
- case IEEE80211_RADIOTAP_FLAGS:
- if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FCS) {
- /*
- * this indicates that the skb we have been
- * handed has the 32-bit FCS CRC at the end...
- * we should react to that by snipping it off
- * because it will be recomputed and added
- * on transmission
- */
- if (skb->len < (iterator.max_length + FCS_LEN))
- return TXRX_DROP;
-
- skb_trim(skb, skb->len - FCS_LEN);
- }
- if (*iterator.this_arg & IEEE80211_RADIOTAP_F_WEP)
- control->flags &=
- ~IEEE80211_TXCTL_DO_NOT_ENCRYPT;
- if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG)
- tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
- break;
-
- /*
- * Please update the file
- * Documentation/networking/mac80211-injection.txt
- * when parsing new fields here.
- */
-
- default:
- break;
- }
- }
-
- if (ret != -ENOENT) /* ie, if we didn't simply run out of fields */
- return TXRX_DROP;
-
- /*
- * remove the radiotap header
- * iterator->max_length was sanity-checked against
- * skb->len by iterator init
- */
- skb_pull(skb, iterator.max_length);
-
- return TXRX_CONTINUE;
-}
-
-/*
- * initialises @tx
- */
-static ieee80211_txrx_result
-__ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
- struct sk_buff *skb,
- struct net_device *dev,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hdr *hdr;
- struct ieee80211_sub_if_data *sdata;
- ieee80211_txrx_result res = TXRX_CONTINUE;
-
- int hdrlen;
-
- memset(tx, 0, sizeof(*tx));
- tx->skb = skb;
- tx->dev = dev; /* use original interface */
- tx->local = local;
- tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- tx->u.tx.control = control;
- /*
- * Set this flag (used below to indicate "automatic fragmentation"),
- * it will be cleared/left by radiotap as desired.
- */
- tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
-
- /* process and remove the injection radiotap header */
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (unlikely(sdata->type == IEEE80211_IF_TYPE_MNTR)) {
- if (__ieee80211_parse_tx_radiotap(tx, skb) == TXRX_DROP)
- return TXRX_DROP;
-
- /*
- * __ieee80211_parse_tx_radiotap has now removed
- * the radiotap header that was present and pre-filled
- * 'tx' with tx control information.
- */
- }
-
- hdr = (struct ieee80211_hdr *) skb->data;
-
- tx->sta = sta_info_get(local, hdr->addr1);
- tx->fc = le16_to_cpu(hdr->frame_control);
-
- if (is_multicast_ether_addr(hdr->addr1)) {
- tx->flags &= ~IEEE80211_TXRXD_TXUNICAST;
- control->flags |= IEEE80211_TXCTL_NO_ACK;
- } else {
- tx->flags |= IEEE80211_TXRXD_TXUNICAST;
- control->flags &= ~IEEE80211_TXCTL_NO_ACK;
- }
-
- if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
- if ((tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
- skb->len + FCS_LEN > local->fragmentation_threshold &&
- !local->ops->set_frag_threshold)
- tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
- else
- tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
- }
-
- if (!tx->sta)
- control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
- else if (tx->sta->clear_dst_mask) {
- control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
- tx->sta->clear_dst_mask = 0;
- }
-
- hdrlen = ieee80211_get_hdrlen(tx->fc);
- if (skb->len > hdrlen + sizeof(rfc1042_header) + 2) {
- u8 *pos = &skb->data[hdrlen + sizeof(rfc1042_header)];
- tx->ethertype = (pos[0] << 8) | pos[1];
- }
- control->flags |= IEEE80211_TXCTL_FIRST_FRAGMENT;
-
- return res;
-}
-
-/* Device in tx->dev has a reference added; use dev_put(tx->dev) when
- * finished with it.
- *
- * NB: @tx is uninitialised when passed in here
- */
-static int ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
- struct sk_buff *skb,
- struct net_device *mdev,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_tx_packet_data *pkt_data;
- struct net_device *dev;
-
- pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- dev = dev_get_by_index(pkt_data->ifindex);
- if (unlikely(dev && !is_ieee80211_device(dev, mdev))) {
- dev_put(dev);
- dev = NULL;
- }
- if (unlikely(!dev))
- return -ENODEV;
- /* initialises tx with control */
- __ieee80211_tx_prepare(tx, skb, dev, control);
- return 0;
-}
-
-static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_tx_control *control = tx->u.tx.control;
- int ret, i;
-
- if (!ieee80211_qdisc_installed(local->mdev) &&
- __ieee80211_queue_stopped(local, 0)) {
- netif_stop_queue(local->mdev);
- return IEEE80211_TX_AGAIN;
- }
- if (skb) {
- ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
- "TX to low-level driver", skb);
- ret = local->ops->tx(local_to_hw(local), skb, control);
- if (ret)
- return IEEE80211_TX_AGAIN;
- local->mdev->trans_start = jiffies;
- ieee80211_led_tx(local, 1);
- }
- if (tx->u.tx.extra_frag) {
- control->flags &= ~(IEEE80211_TXCTL_USE_RTS_CTS |
- IEEE80211_TXCTL_USE_CTS_PROTECT |
- IEEE80211_TXCTL_CLEAR_DST_MASK |
- IEEE80211_TXCTL_FIRST_FRAGMENT);
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- if (!tx->u.tx.extra_frag[i])
- continue;
- if (__ieee80211_queue_stopped(local, control->queue))
- return IEEE80211_TX_FRAG_AGAIN;
- if (i == tx->u.tx.num_extra_frag) {
- control->tx_rate = tx->u.tx.last_frag_hwrate;
- control->rate = tx->u.tx.last_frag_rate;
- if (tx->flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG)
- control->flags |=
- IEEE80211_TXCTL_RATE_CTRL_PROBE;
- else
- control->flags &=
- ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
- }
-
- ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
- "TX to low-level driver",
- tx->u.tx.extra_frag[i]);
- ret = local->ops->tx(local_to_hw(local),
- tx->u.tx.extra_frag[i],
- control);
- if (ret)
- return IEEE80211_TX_FRAG_AGAIN;
- local->mdev->trans_start = jiffies;
- ieee80211_led_tx(local, 1);
- tx->u.tx.extra_frag[i] = NULL;
- }
- kfree(tx->u.tx.extra_frag);
- tx->u.tx.extra_frag = NULL;
- }
- return IEEE80211_TX_OK;
-}
-
-static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- ieee80211_tx_handler *handler;
- struct ieee80211_txrx_data tx;
- ieee80211_txrx_result res = TXRX_DROP, res_prepare;
- int ret, i;
-
- WARN_ON(__ieee80211_queue_pending(local, control->queue));
-
- if (unlikely(skb->len < 10)) {
- dev_kfree_skb(skb);
- return 0;
- }
-
- /* initialises tx */
- res_prepare = __ieee80211_tx_prepare(&tx, skb, dev, control);
-
- if (res_prepare == TXRX_DROP) {
- dev_kfree_skb(skb);
- return 0;
- }
-
- /*
- * key references are protected using RCU and this requires that
- * we are in a read-site RCU section during receive processing
- */
- rcu_read_lock();
-
- sta = tx.sta;
- tx.u.tx.mode = local->hw.conf.mode;
-
- for (handler = local->tx_handlers; *handler != NULL;
- handler++) {
- res = (*handler)(&tx);
- if (res != TXRX_CONTINUE)
- break;
- }
-
- skb = tx.skb; /* handlers are allowed to change skb */
-
- if (sta)
- sta_info_put(sta);
-
- if (unlikely(res == TXRX_DROP)) {
- I802_DEBUG_INC(local->tx_handlers_drop);
- goto drop;
- }
-
- if (unlikely(res == TXRX_QUEUED)) {
- I802_DEBUG_INC(local->tx_handlers_queued);
- rcu_read_unlock();
- return 0;
- }
-
- if (tx.u.tx.extra_frag) {
- for (i = 0; i < tx.u.tx.num_extra_frag; i++) {
- int next_len, dur;
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *)
- tx.u.tx.extra_frag[i]->data;
-
- if (i + 1 < tx.u.tx.num_extra_frag) {
- next_len = tx.u.tx.extra_frag[i + 1]->len;
- } else {
- next_len = 0;
- tx.u.tx.rate = tx.u.tx.last_frag_rate;
- tx.u.tx.last_frag_hwrate = tx.u.tx.rate->val;
- }
- dur = ieee80211_duration(&tx, 0, next_len);
- hdr->duration_id = cpu_to_le16(dur);
- }
- }
-
-retry:
- ret = __ieee80211_tx(local, skb, &tx);
- if (ret) {
- struct ieee80211_tx_stored_packet *store =
- &local->pending_packet[control->queue];
-
- if (ret == IEEE80211_TX_FRAG_AGAIN)
- skb = NULL;
- set_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[control->queue]);
- smp_mb();
- /* When the driver gets out of buffers during sending of
- * fragments and calls ieee80211_stop_queue, there is
- * a small window between IEEE80211_LINK_STATE_XOFF and
- * IEEE80211_LINK_STATE_PENDING flags are set. If a buffer
- * gets available in that window (i.e. driver calls
- * ieee80211_wake_queue), we would end up with ieee80211_tx
- * called with IEEE80211_LINK_STATE_PENDING. Prevent this by
- * continuing transmitting here when that situation is
- * possible to have happened. */
- if (!__ieee80211_queue_stopped(local, control->queue)) {
- clear_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[control->queue]);
- goto retry;
- }
- memcpy(&store->control, control,
- sizeof(struct ieee80211_tx_control));
- store->skb = skb;
- store->extra_frag = tx.u.tx.extra_frag;
- store->num_extra_frag = tx.u.tx.num_extra_frag;
- store->last_frag_hwrate = tx.u.tx.last_frag_hwrate;
- store->last_frag_rate = tx.u.tx.last_frag_rate;
- store->last_frag_rate_ctrl_probe =
- !!(tx.flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG);
- }
- rcu_read_unlock();
- return 0;
-
- drop:
- if (skb)
- dev_kfree_skb(skb);
- for (i = 0; i < tx.u.tx.num_extra_frag; i++)
- if (tx.u.tx.extra_frag[i])
- dev_kfree_skb(tx.u.tx.extra_frag[i]);
- kfree(tx.u.tx.extra_frag);
- rcu_read_unlock();
- return 0;
-}
-
-/* device xmit handlers */
-
-int ieee80211_master_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct ieee80211_tx_control control;
- struct ieee80211_tx_packet_data *pkt_data;
- struct net_device *odev = NULL;
- struct ieee80211_sub_if_data *osdata;
- int headroom;
- int ret;
-
- /*
- * copy control out of the skb so other people can use skb->cb
- */
- pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- memset(&control, 0, sizeof(struct ieee80211_tx_control));
-
- if (pkt_data->ifindex)
- odev = dev_get_by_index(pkt_data->ifindex);
- if (unlikely(odev && !is_ieee80211_device(odev, dev))) {
- dev_put(odev);
- odev = NULL;
- }
- if (unlikely(!odev)) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Discarded packet with nonexistent "
- "originating device\n", dev->name);
-#endif
- dev_kfree_skb(skb);
- return 0;
- }
- osdata = IEEE80211_DEV_TO_SUB_IF(odev);
-
- headroom = osdata->local->tx_headroom + IEEE80211_ENCRYPT_HEADROOM;
- if (skb_headroom(skb) < headroom) {
- if (pskb_expand_head(skb, headroom, 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- dev_put(odev);
- return 0;
- }
- }
-
- control.ifindex = odev->ifindex;
- control.type = osdata->type;
- if (pkt_data->flags & IEEE80211_TXPD_REQ_TX_STATUS)
- control.flags |= IEEE80211_TXCTL_REQ_TX_STATUS;
- if (pkt_data->flags & IEEE80211_TXPD_DO_NOT_ENCRYPT)
- control.flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
- if (pkt_data->flags & IEEE80211_TXPD_REQUEUE)
- control.flags |= IEEE80211_TXCTL_REQUEUE;
- control.queue = pkt_data->queue;
-
- ret = ieee80211_tx(odev, skb, &control);
- dev_put(odev);
-
- return ret;
-}
-
-int ieee80211_monitor_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_tx_packet_data *pkt_data;
- struct ieee80211_radiotap_header *prthdr =
- (struct ieee80211_radiotap_header *)skb->data;
- u16 len_rthdr;
-
- /* check for not even having the fixed radiotap header part */
- if (unlikely(skb->len < sizeof(struct ieee80211_radiotap_header)))
- goto fail; /* too short to be possibly valid */
-
- /* is it a header version we can trust to find length from? */
- if (unlikely(prthdr->it_version))
- goto fail; /* only version 0 is supported */
-
- /* then there must be a radiotap header with a length we can use */
- len_rthdr = ieee80211_get_radiotap_len(skb->data);
-
- /* does the skb contain enough to deliver on the alleged length? */
- if (unlikely(skb->len < len_rthdr))
- goto fail; /* skb too short for claimed rt header extent */
-
- skb->dev = local->mdev;
-
- pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- memset(pkt_data, 0, sizeof(*pkt_data));
- /* needed because we set skb device to master */
- pkt_data->ifindex = dev->ifindex;
-
- pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
-
- /*
- * fix up the pointers accounting for the radiotap
- * header still being in there. We are being given
- * a precooked IEEE80211 header so no need for
- * normal processing
- */
- skb_set_mac_header(skb, len_rthdr);
- /*
- * these are just fixed to the end of the rt area since we
- * don't have any better information and at this point, nobody cares
- */
- skb_set_network_header(skb, len_rthdr);
- skb_set_transport_header(skb, len_rthdr);
-
- /* pass the radiotap header up to the next stage intact */
- dev_queue_xmit(skb);
- return NETDEV_TX_OK;
-
-fail:
- dev_kfree_skb(skb);
- return NETDEV_TX_OK; /* meaning, we dealt with the skb */
-}
-
-/**
- * ieee80211_subif_start_xmit - netif start_xmit function for Ethernet-type
- * subinterfaces (wlan#, WDS, and VLAN interfaces)
- * @skb: packet to be sent
- * @dev: incoming interface
- *
- * Returns: 0 on success (and frees skb in this case) or 1 on failure (skb will
- * not be freed, and caller is responsible for either retrying later or freeing
- * skb).
- *
- * This function takes in an Ethernet header and encapsulates it with suitable
- * IEEE 802.11 header based on which interface the packet is coming in. The
- * encapsulated packet will then be passed to master interface, wlan#.11, for
- * transmission (through low-level driver).
- */
-int ieee80211_subif_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_tx_packet_data *pkt_data;
- struct ieee80211_sub_if_data *sdata;
- int ret = 1, head_need;
- u16 ethertype, hdrlen, fc;
- struct ieee80211_hdr hdr;
- const u8 *encaps_data;
- int encaps_len, skip_header_bytes;
- int nh_pos, h_pos;
- struct sta_info *sta;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (unlikely(skb->len < ETH_HLEN)) {
- printk(KERN_DEBUG "%s: short skb (len=%d)\n",
- dev->name, skb->len);
- ret = 0;
- goto fail;
- }
-
- nh_pos = skb_network_header(skb) - skb->data;
- h_pos = skb_transport_header(skb) - skb->data;
-
- /* convert Ethernet header to proper 802.11 header (based on
- * operation mode) */
- ethertype = (skb->data[12] << 8) | skb->data[13];
- /* TODO: handling for 802.1x authorized/unauthorized port */
- fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA;
-
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_AP:
- case IEEE80211_IF_TYPE_VLAN:
- fc |= IEEE80211_FCTL_FROMDS;
- /* DA BSSID SA */
- memcpy(hdr.addr1, skb->data, ETH_ALEN);
- memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
- memcpy(hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN);
- hdrlen = 24;
- break;
- case IEEE80211_IF_TYPE_WDS:
- fc |= IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS;
- /* RA TA DA SA */
- memcpy(hdr.addr1, sdata->u.wds.remote_addr, ETH_ALEN);
- memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
- memcpy(hdr.addr3, skb->data, ETH_ALEN);
- memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
- hdrlen = 30;
- break;
- case IEEE80211_IF_TYPE_STA:
- fc |= IEEE80211_FCTL_TODS;
- /* BSSID SA DA */
- memcpy(hdr.addr1, sdata->u.sta.bssid, ETH_ALEN);
- memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
- memcpy(hdr.addr3, skb->data, ETH_ALEN);
- hdrlen = 24;
- break;
- case IEEE80211_IF_TYPE_IBSS:
- /* DA SA BSSID */
- memcpy(hdr.addr1, skb->data, ETH_ALEN);
- memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
- memcpy(hdr.addr3, sdata->u.sta.bssid, ETH_ALEN);
- hdrlen = 24;
- break;
- default:
- ret = 0;
- goto fail;
- }
-
- /* receiver is QoS enabled, use a QoS type frame */
- sta = sta_info_get(local, hdr.addr1);
- if (sta) {
- if (sta->flags & WLAN_STA_WME) {
- fc |= IEEE80211_STYPE_QOS_DATA;
- hdrlen += 2;
- }
- sta_info_put(sta);
- }
-
- hdr.frame_control = cpu_to_le16(fc);
- hdr.duration_id = 0;
- hdr.seq_ctrl = 0;
-
- skip_header_bytes = ETH_HLEN;
- if (ethertype == ETH_P_AARP || ethertype == ETH_P_IPX) {
- encaps_data = bridge_tunnel_header;
- encaps_len = sizeof(bridge_tunnel_header);
- skip_header_bytes -= 2;
- } else if (ethertype >= 0x600) {
- encaps_data = rfc1042_header;
- encaps_len = sizeof(rfc1042_header);
- skip_header_bytes -= 2;
- } else {
- encaps_data = NULL;
- encaps_len = 0;
- }
-
- skb_pull(skb, skip_header_bytes);
- nh_pos -= skip_header_bytes;
- h_pos -= skip_header_bytes;
-
- /* TODO: implement support for fragments so that there is no need to
- * reallocate and copy payload; it might be enough to support one
- * extra fragment that would be copied in the beginning of the frame
- * data.. anyway, it would be nice to include this into skb structure
- * somehow
- *
- * There are few options for this:
- * use skb->cb as an extra space for 802.11 header
- * allocate new buffer if not enough headroom
- * make sure that there is enough headroom in every skb by increasing
- * build in headroom in __dev_alloc_skb() (linux/skbuff.h) and
- * alloc_skb() (net/core/skbuff.c)
- */
- head_need = hdrlen + encaps_len + local->tx_headroom;
- head_need -= skb_headroom(skb);
-
- /* We are going to modify skb data, so make a copy of it if happens to
- * be cloned. This could happen, e.g., with Linux bridge code passing
- * us broadcast frames. */
-
- if (head_need > 0 || skb_cloned(skb)) {
-#if 0
- printk(KERN_DEBUG "%s: need to reallocate buffer for %d bytes "
- "of headroom\n", dev->name, head_need);
-#endif
-
- if (skb_cloned(skb))
- I802_DEBUG_INC(local->tx_expand_skb_head_cloned);
- else
- I802_DEBUG_INC(local->tx_expand_skb_head);
- /* Since we have to reallocate the buffer, make sure that there
- * is enough room for possible WEP IV/ICV and TKIP (8 bytes
- * before payload and 12 after). */
- if (pskb_expand_head(skb, (head_need > 0 ? head_need + 8 : 8),
- 12, GFP_ATOMIC)) {
- printk(KERN_DEBUG "%s: failed to reallocate TX buffer"
- "\n", dev->name);
- goto fail;
- }
- }
-
- if (encaps_data) {
- memcpy(skb_push(skb, encaps_len), encaps_data, encaps_len);
- nh_pos += encaps_len;
- h_pos += encaps_len;
- }
-
- if (fc & IEEE80211_STYPE_QOS_DATA) {
- __le16 *qos_control;
-
- qos_control = (__le16*) skb_push(skb, 2);
- memcpy(skb_push(skb, hdrlen - 2), &hdr, hdrlen - 2);
- /*
- * Maybe we could actually set some fields here, for now just
- * initialise to zero to indicate no special operation.
- */
- *qos_control = 0;
- } else
- memcpy(skb_push(skb, hdrlen), &hdr, hdrlen);
-
- nh_pos += hdrlen;
- h_pos += hdrlen;
-
- pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
- pkt_data->ifindex = dev->ifindex;
-
- skb->dev = local->mdev;
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += skb->len;
-
- /* Update skb pointers to various headers since this modified frame
- * is going to go through Linux networking code that may potentially
- * need things like pointer to IP header. */
- skb_set_mac_header(skb, 0);
- skb_set_network_header(skb, nh_pos);
- skb_set_transport_header(skb, h_pos);
-
- dev->trans_start = jiffies;
- dev_queue_xmit(skb);
-
- return 0;
-
- fail:
- if (!ret)
- dev_kfree_skb(skb);
-
- return ret;
-}
-
-/*
- * This is the transmit routine for the 802.11 type interfaces
- * called by upper layers of the linux networking
- * stack when it has a frame to transmit
- */
-int ieee80211_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_tx_packet_data *pkt_data;
- struct ieee80211_hdr *hdr;
- u16 fc;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (skb->len < 10) {
- dev_kfree_skb(skb);
- return 0;
- }
-
- if (skb_headroom(skb) < sdata->local->tx_headroom) {
- if (pskb_expand_head(skb, sdata->local->tx_headroom,
- 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- return 0;
- }
- }
-
- hdr = (struct ieee80211_hdr *) skb->data;
- fc = le16_to_cpu(hdr->frame_control);
-
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
- memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
- pkt_data->ifindex = sdata->dev->ifindex;
-
- skb->priority = 20; /* use hardcoded priority for mgmt TX queue */
- skb->dev = sdata->local->mdev;
-
- /*
- * We're using the protocol field of the the frame control header
- * to request TX callback for hostapd. BIT(1) is checked.
- */
- if ((fc & BIT(1)) == BIT(1)) {
- pkt_data->flags |= IEEE80211_TXPD_REQ_TX_STATUS;
- fc &= ~BIT(1);
- hdr->frame_control = cpu_to_le16(fc);
- }
-
- if (!(fc & IEEE80211_FCTL_PROTECTED))
- pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
-
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += skb->len;
-
- dev_queue_xmit(skb);
-
- return 0;
-}
-
-/* helper functions for pending packets for when queues are stopped */
-
-void ieee80211_clear_tx_pending(struct ieee80211_local *local)
-{
- int i, j;
- struct ieee80211_tx_stored_packet *store;
-
- for (i = 0; i < local->hw.queues; i++) {
- if (!__ieee80211_queue_pending(local, i))
- continue;
- store = &local->pending_packet[i];
- kfree_skb(store->skb);
- for (j = 0; j < store->num_extra_frag; j++)
- kfree_skb(store->extra_frag[j]);
- kfree(store->extra_frag);
- clear_bit(IEEE80211_LINK_STATE_PENDING, &local->state[i]);
- }
-}
-
-void ieee80211_tx_pending(unsigned long data)
-{
- struct ieee80211_local *local = (struct ieee80211_local *)data;
- struct net_device *dev = local->mdev;
- struct ieee80211_tx_stored_packet *store;
- struct ieee80211_txrx_data tx;
- int i, ret, reschedule = 0;
-
- netif_tx_lock_bh(dev);
- for (i = 0; i < local->hw.queues; i++) {
- if (__ieee80211_queue_stopped(local, i))
- continue;
- if (!__ieee80211_queue_pending(local, i)) {
- reschedule = 1;
- continue;
- }
- store = &local->pending_packet[i];
- tx.u.tx.control = &store->control;
- tx.u.tx.extra_frag = store->extra_frag;
- tx.u.tx.num_extra_frag = store->num_extra_frag;
- tx.u.tx.last_frag_hwrate = store->last_frag_hwrate;
- tx.u.tx.last_frag_rate = store->last_frag_rate;
- tx.flags = 0;
- if (store->last_frag_rate_ctrl_probe)
- tx.flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
- ret = __ieee80211_tx(local, store->skb, &tx);
- if (ret) {
- if (ret == IEEE80211_TX_FRAG_AGAIN)
- store->skb = NULL;
- } else {
- clear_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[i]);
- reschedule = 1;
- }
- }
- netif_tx_unlock_bh(dev);
- if (reschedule) {
- if (!ieee80211_qdisc_installed(dev)) {
- if (!__ieee80211_queue_stopped(local, 0))
- netif_wake_queue(dev);
- } else
- netif_schedule(dev);
- }
-}
-
-/* functions for drivers to get certain frames */
-
-static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
- struct ieee80211_if_ap *bss,
- struct sk_buff *skb)
-{
- u8 *pos, *tim;
- int aid0 = 0;
- int i, have_bits = 0, n1, n2;
-
- /* Generate bitmap for TIM only if there are any STAs in power save
- * mode. */
- read_lock_bh(&local->sta_lock);
- if (atomic_read(&bss->num_sta_ps) > 0)
- /* in the hope that this is faster than
- * checking byte-for-byte */
- have_bits = !bitmap_empty((unsigned long*)bss->tim,
- IEEE80211_MAX_AID+1);
-
- if (bss->dtim_count == 0)
- bss->dtim_count = bss->dtim_period - 1;
- else
- bss->dtim_count--;
-
- tim = pos = (u8 *) skb_put(skb, 6);
- *pos++ = WLAN_EID_TIM;
- *pos++ = 4;
- *pos++ = bss->dtim_count;
- *pos++ = bss->dtim_period;
-
- if (bss->dtim_count == 0 && !skb_queue_empty(&bss->ps_bc_buf))
- aid0 = 1;
-
- if (have_bits) {
- /* Find largest even number N1 so that bits numbered 1 through
- * (N1 x 8) - 1 in the bitmap are 0 and number N2 so that bits
- * (N2 + 1) x 8 through 2007 are 0. */
- n1 = 0;
- for (i = 0; i < IEEE80211_MAX_TIM_LEN; i++) {
- if (bss->tim[i]) {
- n1 = i & 0xfe;
- break;
- }
- }
- n2 = n1;
- for (i = IEEE80211_MAX_TIM_LEN - 1; i >= n1; i--) {
- if (bss->tim[i]) {
- n2 = i;
- break;
- }
- }
-
- /* Bitmap control */
- *pos++ = n1 | aid0;
- /* Part Virt Bitmap */
- memcpy(pos, bss->tim + n1, n2 - n1 + 1);
-
- tim[1] = n2 - n1 + 4;
- skb_put(skb, n2 - n1);
- } else {
- *pos++ = aid0; /* Bitmap control */
- *pos++ = 0; /* Part Virt Bitmap */
- }
- read_unlock_bh(&local->sta_lock);
-}
-
-struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, int if_id,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct sk_buff *skb;
- struct net_device *bdev;
- struct ieee80211_sub_if_data *sdata = NULL;
- struct ieee80211_if_ap *ap = NULL;
- struct ieee80211_rate *rate;
- struct rate_control_extra extra;
- u8 *b_head, *b_tail;
- int bh_len, bt_len;
-
- bdev = dev_get_by_index(if_id);
- if (bdev) {
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- ap = &sdata->u.ap;
- dev_put(bdev);
- }
-
- if (!ap || sdata->type != IEEE80211_IF_TYPE_AP ||
- !ap->beacon_head) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "no beacon data avail for idx=%d "
- "(%s)\n", if_id, bdev ? bdev->name : "N/A");
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- return NULL;
- }
-
- /* Assume we are generating the normal beacon locally */
- b_head = ap->beacon_head;
- b_tail = ap->beacon_tail;
- bh_len = ap->beacon_head_len;
- bt_len = ap->beacon_tail_len;
-
- skb = dev_alloc_skb(local->tx_headroom +
- bh_len + bt_len + 256 /* maximum TIM len */);
- if (!skb)
- return NULL;
-
- skb_reserve(skb, local->tx_headroom);
- memcpy(skb_put(skb, bh_len), b_head, bh_len);
-
- ieee80211_include_sequence(sdata, (struct ieee80211_hdr *)skb->data);
-
- ieee80211_beacon_add_tim(local, ap, skb);
-
- if (b_tail) {
- memcpy(skb_put(skb, bt_len), b_tail, bt_len);
- }
-
- if (control) {
- memset(&extra, 0, sizeof(extra));
- extra.mode = local->oper_hw_mode;
-
- rate = rate_control_get_rate(local, local->mdev, skb, &extra);
- if (!rate) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: ieee80211_beacon_get: no rate "
- "found\n", wiphy_name(local->hw.wiphy));
- }
- dev_kfree_skb(skb);
- return NULL;
- }
-
- control->tx_rate =
- ((sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
- (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
- rate->val2 : rate->val;
- control->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
- control->power_level = local->hw.conf.power_level;
- control->flags |= IEEE80211_TXCTL_NO_ACK;
- control->retry_limit = 1;
- control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
- }
-
- ap->num_beacons++;
- return skb;
-}
-EXPORT_SYMBOL(ieee80211_beacon_get);
-
-void ieee80211_rts_get(struct ieee80211_hw *hw, int if_id,
- const void *frame, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl,
- struct ieee80211_rts *rts)
-{
- const struct ieee80211_hdr *hdr = frame;
- u16 fctl;
-
- fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS;
- rts->frame_control = cpu_to_le16(fctl);
- rts->duration = ieee80211_rts_duration(hw, if_id, frame_len, frame_txctl);
- memcpy(rts->ra, hdr->addr1, sizeof(rts->ra));
- memcpy(rts->ta, hdr->addr2, sizeof(rts->ta));
-}
-EXPORT_SYMBOL(ieee80211_rts_get);
-
-void ieee80211_ctstoself_get(struct ieee80211_hw *hw, int if_id,
- const void *frame, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl,
- struct ieee80211_cts *cts)
-{
- const struct ieee80211_hdr *hdr = frame;
- u16 fctl;
-
- fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS;
- cts->frame_control = cpu_to_le16(fctl);
- cts->duration = ieee80211_ctstoself_duration(hw, if_id, frame_len, frame_txctl);
- memcpy(cts->ra, hdr->addr1, sizeof(cts->ra));
-}
-EXPORT_SYMBOL(ieee80211_ctstoself_get);
-
-struct sk_buff *
-ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct sk_buff *skb;
- struct sta_info *sta;
- ieee80211_tx_handler *handler;
- struct ieee80211_txrx_data tx;
- ieee80211_txrx_result res = TXRX_DROP;
- struct net_device *bdev;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_ap *bss = NULL;
-
- bdev = dev_get_by_index(if_id);
- if (bdev) {
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- bss = &sdata->u.ap;
- dev_put(bdev);
- }
- if (!bss || sdata->type != IEEE80211_IF_TYPE_AP || !bss->beacon_head)
- return NULL;
-
- if (bss->dtim_count != 0)
- return NULL; /* send buffered bc/mc only after DTIM beacon */
- memset(control, 0, sizeof(*control));
- while (1) {
- skb = skb_dequeue(&bss->ps_bc_buf);
- if (!skb)
- return NULL;
- local->total_ps_buffered--;
-
- if (!skb_queue_empty(&bss->ps_bc_buf) && skb->len >= 2) {
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) skb->data;
- /* more buffered multicast/broadcast frames ==> set
- * MoreData flag in IEEE 802.11 header to inform PS
- * STAs */
- hdr->frame_control |=
- cpu_to_le16(IEEE80211_FCTL_MOREDATA);
- }
-
- if (!ieee80211_tx_prepare(&tx, skb, local->mdev, control))
- break;
- dev_kfree_skb_any(skb);
- }
- sta = tx.sta;
- tx.flags |= IEEE80211_TXRXD_TXPS_BUFFERED;
- tx.u.tx.mode = local->hw.conf.mode;
-
- for (handler = local->tx_handlers; *handler != NULL; handler++) {
- res = (*handler)(&tx);
- if (res == TXRX_DROP || res == TXRX_QUEUED)
- break;
- }
- dev_put(tx.dev);
- skb = tx.skb; /* handlers are allowed to change skb */
-
- if (res == TXRX_DROP) {
- I802_DEBUG_INC(local->tx_handlers_drop);
- dev_kfree_skb(skb);
- skb = NULL;
- } else if (res == TXRX_QUEUED) {
- I802_DEBUG_INC(local->tx_handlers_queued);
- skb = NULL;
- }
-
- if (sta)
- sta_info_put(sta);
-
- return skb;
-}
-EXPORT_SYMBOL(ieee80211_get_buffered_bc);
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * utilities for mac80211
- */
-
-#include <net/mac80211.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/etherdevice.h>
-#include <linux/if_arp.h>
-#include <linux/wireless.h>
-#include <linux/bitmap.h>
-#include <net/cfg80211.h>
-
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "wme.h"
-
-/* privid for wiphys to determine whether they belong to us or not */
-void *mac80211_wiphy_privid = &mac80211_wiphy_privid;
-
-/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
-/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
-const unsigned char rfc1042_header[] =
- { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
-
-/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
-const unsigned char bridge_tunnel_header[] =
- { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
-
-/* No encapsulation header if EtherType < 0x600 (=length) */
-static const unsigned char eapol_header[] =
- { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00, 0x88, 0x8e };
-
-
-static int rate_list_match(const int *rate_list, int rate)
-{
- int i;
-
- if (!rate_list)
- return 0;
-
- for (i = 0; rate_list[i] >= 0; i++)
- if (rate_list[i] == rate)
- return 1;
-
- return 0;
-}
-
-void ieee80211_prepare_rates(struct ieee80211_local *local,
- struct ieee80211_hw_mode *mode)
-{
- int i;
-
- for (i = 0; i < mode->num_rates; i++) {
- struct ieee80211_rate *rate = &mode->rates[i];
-
- rate->flags &= ~(IEEE80211_RATE_SUPPORTED |
- IEEE80211_RATE_BASIC);
-
- if (local->supp_rates[mode->mode]) {
- if (!rate_list_match(local->supp_rates[mode->mode],
- rate->rate))
- continue;
- }
-
- rate->flags |= IEEE80211_RATE_SUPPORTED;
-
- /* Use configured basic rate set if it is available. If not,
- * use defaults that are sane for most cases. */
- if (local->basic_rates[mode->mode]) {
- if (rate_list_match(local->basic_rates[mode->mode],
- rate->rate))
- rate->flags |= IEEE80211_RATE_BASIC;
- } else switch (mode->mode) {
- case MODE_IEEE80211A:
- if (rate->rate == 60 || rate->rate == 120 ||
- rate->rate == 240)
- rate->flags |= IEEE80211_RATE_BASIC;
- break;
- case MODE_IEEE80211B:
- if (rate->rate == 10 || rate->rate == 20)
- rate->flags |= IEEE80211_RATE_BASIC;
- break;
- case MODE_IEEE80211G:
- if (rate->rate == 10 || rate->rate == 20 ||
- rate->rate == 55 || rate->rate == 110)
- rate->flags |= IEEE80211_RATE_BASIC;
- break;
- case NUM_IEEE80211_MODES:
- /* not useful */
- break;
- }
-
- /* Set ERP and MANDATORY flags based on phymode */
- switch (mode->mode) {
- case MODE_IEEE80211A:
- if (rate->rate == 60 || rate->rate == 120 ||
- rate->rate == 240)
- rate->flags |= IEEE80211_RATE_MANDATORY;
- break;
- case MODE_IEEE80211B:
- if (rate->rate == 10)
- rate->flags |= IEEE80211_RATE_MANDATORY;
- break;
- case MODE_IEEE80211G:
- if (rate->rate == 10 || rate->rate == 20 ||
- rate->rate == 55 || rate->rate == 110 ||
- rate->rate == 60 || rate->rate == 120 ||
- rate->rate == 240)
- rate->flags |= IEEE80211_RATE_MANDATORY;
- break;
- case NUM_IEEE80211_MODES:
- /* not useful */
- break;
- }
- if (ieee80211_is_erp_rate(mode->mode, rate->rate))
- rate->flags |= IEEE80211_RATE_ERP;
- }
-}
-
-u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len)
-{
- u16 fc;
-
- if (len < 24)
- return NULL;
-
- fc = le16_to_cpu(hdr->frame_control);
-
- switch (fc & IEEE80211_FCTL_FTYPE) {
- case IEEE80211_FTYPE_DATA:
- switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
- case IEEE80211_FCTL_TODS:
- return hdr->addr1;
- case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
- return NULL;
- case IEEE80211_FCTL_FROMDS:
- return hdr->addr2;
- case 0:
- return hdr->addr3;
- }
- break;
- case IEEE80211_FTYPE_MGMT:
- return hdr->addr3;
- case IEEE80211_FTYPE_CTL:
- if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)
- return hdr->addr1;
- else
- return NULL;
- }
-
- return NULL;
-}
-
-int ieee80211_get_hdrlen(u16 fc)
-{
- int hdrlen = 24;
-
- switch (fc & IEEE80211_FCTL_FTYPE) {
- case IEEE80211_FTYPE_DATA:
- if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
- hdrlen = 30; /* Addr4 */
- /*
- * The QoS Control field is two bytes and its presence is
- * indicated by the IEEE80211_STYPE_QOS_DATA bit. Add 2 to
- * hdrlen if that bit is set.
- * This works by masking out the bit and shifting it to
- * bit position 1 so the result has the value 0 or 2.
- */
- hdrlen += (fc & IEEE80211_STYPE_QOS_DATA)
- >> (ilog2(IEEE80211_STYPE_QOS_DATA)-1);
- break;
- case IEEE80211_FTYPE_CTL:
- /*
- * ACK and CTS are 10 bytes, all others 16. To see how
- * to get this condition consider
- * subtype mask: 0b0000000011110000 (0x00F0)
- * ACK subtype: 0b0000000011010000 (0x00D0)
- * CTS subtype: 0b0000000011000000 (0x00C0)
- * bits that matter: ^^^ (0x00E0)
- * value of those: 0b0000000011000000 (0x00C0)
- */
- if ((fc & 0xE0) == 0xC0)
- hdrlen = 10;
- else
- hdrlen = 16;
- break;
- }
-
- return hdrlen;
-}
-EXPORT_SYMBOL(ieee80211_get_hdrlen);
-
-int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
-{
- const struct ieee80211_hdr *hdr = (const struct ieee80211_hdr *) skb->data;
- int hdrlen;
-
- if (unlikely(skb->len < 10))
- return 0;
- hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control));
- if (unlikely(hdrlen > skb->len))
- return 0;
- return hdrlen;
-}
-EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
-
-int ieee80211_is_eapol(const struct sk_buff *skb)
-{
- const struct ieee80211_hdr *hdr;
- u16 fc;
- int hdrlen;
-
- if (unlikely(skb->len < 10))
- return 0;
-
- hdr = (const struct ieee80211_hdr *) skb->data;
- fc = le16_to_cpu(hdr->frame_control);
-
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
- return 0;
-
- hdrlen = ieee80211_get_hdrlen(fc);
-
- if (unlikely(skb->len >= hdrlen + sizeof(eapol_header) &&
- memcmp(skb->data + hdrlen, eapol_header,
- sizeof(eapol_header)) == 0))
- return 1;
-
- return 0;
-}
-
-void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
-
- hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
- if (tx->u.tx.extra_frag) {
- struct ieee80211_hdr *fhdr;
- int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- fhdr = (struct ieee80211_hdr *)
- tx->u.tx.extra_frag[i]->data;
- fhdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
- }
- }
-}
-
-int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
- int rate, int erp, int short_preamble)
-{
- int dur;
-
- /* calculate duration (in microseconds, rounded up to next higher
- * integer if it includes a fractional microsecond) to send frame of
- * len bytes (does not include FCS) at the given rate. Duration will
- * also include SIFS.
- *
- * rate is in 100 kbps, so divident is multiplied by 10 in the
- * DIV_ROUND_UP() operations.
- */
-
- if (local->hw.conf.phymode == MODE_IEEE80211A || erp) {
- /*
- * OFDM:
- *
- * N_DBPS = DATARATE x 4
- * N_SYM = Ceiling((16+8xLENGTH+6) / N_DBPS)
- * (16 = SIGNAL time, 6 = tail bits)
- * TXTIME = T_PREAMBLE + T_SIGNAL + T_SYM x N_SYM + Signal Ext
- *
- * T_SYM = 4 usec
- * 802.11a - 17.5.2: aSIFSTime = 16 usec
- * 802.11g - 19.8.4: aSIFSTime = 10 usec +
- * signal ext = 6 usec
- */
- dur = 16; /* SIFS + signal ext */
- dur += 16; /* 17.3.2.3: T_PREAMBLE = 16 usec */
- dur += 4; /* 17.3.2.3: T_SIGNAL = 4 usec */
- dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10,
- 4 * rate); /* T_SYM x N_SYM */
- } else {
- /*
- * 802.11b or 802.11g with 802.11b compatibility:
- * 18.3.4: TXTIME = PreambleLength + PLCPHeaderTime +
- * Ceiling(((LENGTH+PBCC)x8)/DATARATE). PBCC=0.
- *
- * 802.11 (DS): 15.3.3, 802.11b: 18.3.4
- * aSIFSTime = 10 usec
- * aPreambleLength = 144 usec or 72 usec with short preamble
- * aPLCPHeaderLength = 48 usec or 24 usec with short preamble
- */
- dur = 10; /* aSIFSTime = 10 usec */
- dur += short_preamble ? (72 + 24) : (144 + 48);
-
- dur += DIV_ROUND_UP(8 * (len + 4) * 10, rate);
- }
-
- return dur;
-}
-
-/* Exported duration function for driver use */
-__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, int if_id,
- size_t frame_len, int rate)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct net_device *bdev = dev_get_by_index(if_id);
- struct ieee80211_sub_if_data *sdata;
- u16 dur;
- int erp;
-
- if (unlikely(!bdev))
- return 0;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- erp = ieee80211_is_erp_rate(hw->conf.phymode, rate);
- dur = ieee80211_frame_duration(local, frame_len, rate,
- erp, sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
-
- dev_put(bdev);
- return cpu_to_le16(dur);
-}
-EXPORT_SYMBOL(ieee80211_generic_frame_duration);
-
-__le16 ieee80211_rts_duration(struct ieee80211_hw *hw, int if_id,
- size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_rate *rate;
- struct net_device *bdev = dev_get_by_index(if_id);
- struct ieee80211_sub_if_data *sdata;
- int short_preamble;
- int erp;
- u16 dur;
-
- if (unlikely(!bdev))
- return 0;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- short_preamble = sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE;
-
- rate = frame_txctl->rts_rate;
- erp = !!(rate->flags & IEEE80211_RATE_ERP);
-
- /* CTS duration */
- dur = ieee80211_frame_duration(local, 10, rate->rate,
- erp, short_preamble);
- /* Data frame duration */
- dur += ieee80211_frame_duration(local, frame_len, rate->rate,
- erp, short_preamble);
- /* ACK duration */
- dur += ieee80211_frame_duration(local, 10, rate->rate,
- erp, short_preamble);
-
- dev_put(bdev);
- return cpu_to_le16(dur);
-}
-EXPORT_SYMBOL(ieee80211_rts_duration);
-
-__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, int if_id,
- size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_rate *rate;
- struct net_device *bdev = dev_get_by_index(if_id);
- struct ieee80211_sub_if_data *sdata;
- int short_preamble;
- int erp;
- u16 dur;
-
- if (unlikely(!bdev))
- return 0;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- short_preamble = sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE;
-
- rate = frame_txctl->rts_rate;
- erp = !!(rate->flags & IEEE80211_RATE_ERP);
-
- /* Data frame duration */
- dur = ieee80211_frame_duration(local, frame_len, rate->rate,
- erp, short_preamble);
- if (!(frame_txctl->flags & IEEE80211_TXCTL_NO_ACK)) {
- /* ACK duration */
- dur += ieee80211_frame_duration(local, 10, rate->rate,
- erp, short_preamble);
- }
-
- dev_put(bdev);
- return cpu_to_le16(dur);
-}
-EXPORT_SYMBOL(ieee80211_ctstoself_duration);
-
-struct ieee80211_rate *
-ieee80211_get_rate(struct ieee80211_local *local, int phymode, int hw_rate)
-{
- struct ieee80211_hw_mode *mode;
- int r;
-
- list_for_each_entry(mode, &local->modes_list, list) {
- if (mode->mode != phymode)
- continue;
- for (r = 0; r < mode->num_rates; r++) {
- struct ieee80211_rate *rate = &mode->rates[r];
- if (rate->val == hw_rate ||
- (rate->flags & IEEE80211_RATE_PREAMBLE2 &&
- rate->val2 == hw_rate))
- return rate;
- }
- }
-
- return NULL;
-}
-
-void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (test_and_clear_bit(IEEE80211_LINK_STATE_XOFF,
- &local->state[queue])) {
- if (test_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[queue]))
- tasklet_schedule(&local->tx_pending_tasklet);
- else
- if (!ieee80211_qdisc_installed(local->mdev)) {
- if (queue == 0)
- netif_wake_queue(local->mdev);
- } else
- __netif_schedule(local->mdev);
- }
-}
-EXPORT_SYMBOL(ieee80211_wake_queue);
-
-void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (!ieee80211_qdisc_installed(local->mdev) && queue == 0)
- netif_stop_queue(local->mdev);
- set_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]);
-}
-EXPORT_SYMBOL(ieee80211_stop_queue);
-
-void ieee80211_start_queues(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- int i;
-
- for (i = 0; i < local->hw.queues; i++)
- clear_bit(IEEE80211_LINK_STATE_XOFF, &local->state[i]);
- if (!ieee80211_qdisc_installed(local->mdev))
- netif_start_queue(local->mdev);
-}
-EXPORT_SYMBOL(ieee80211_start_queues);
-
-void ieee80211_stop_queues(struct ieee80211_hw *hw)
-{
- int i;
-
- for (i = 0; i < hw->queues; i++)
- ieee80211_stop_queue(hw, i);
-}
-EXPORT_SYMBOL(ieee80211_stop_queues);
-
-void ieee80211_wake_queues(struct ieee80211_hw *hw)
-{
- int i;
-
- for (i = 0; i < hw->queues; i++)
- ieee80211_wake_queue(hw, i);
-}
-EXPORT_SYMBOL(ieee80211_wake_queues);
+++ /dev/null
-/*
- * Software WEP encryption implementation
- * Copyright 2002, Jouni Malinen <jkmaline@cc.hut.fi>
- * Copyright 2003, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/random.h>
-#include <linux/compiler.h>
-#include <linux/crc32.h>
-#include <linux/crypto.h>
-#include <linux/err.h>
-#include <linux/mm.h>
-#include <asm/scatterlist.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "wep.h"
-
-
-int ieee80211_wep_init(struct ieee80211_local *local)
-{
- /* start WEP IV from a random value */
- get_random_bytes(&local->wep_iv, WEP_IV_LEN);
-
- local->wep_tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0,
- CRYPTO_ALG_ASYNC);
- if (IS_ERR(local->wep_tx_tfm))
- return -ENOMEM;
-
- local->wep_rx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0,
- CRYPTO_ALG_ASYNC);
- if (IS_ERR(local->wep_rx_tfm)) {
- crypto_free_blkcipher(local->wep_tx_tfm);
- return -ENOMEM;
- }
-
- return 0;
-}
-
-void ieee80211_wep_free(struct ieee80211_local *local)
-{
- crypto_free_blkcipher(local->wep_tx_tfm);
- crypto_free_blkcipher(local->wep_rx_tfm);
-}
-
-static inline int ieee80211_wep_weak_iv(u32 iv, int keylen)
-{
- /* Fluhrer, Mantin, and Shamir have reported weaknesses in the
- * key scheduling algorithm of RC4. At least IVs (KeyByte + 3,
- * 0xff, N) can be used to speedup attacks, so avoid using them. */
- if ((iv & 0xff00) == 0xff00) {
- u8 B = (iv >> 16) & 0xff;
- if (B >= 3 && B < 3 + keylen)
- return 1;
- }
- return 0;
-}
-
-
-static void ieee80211_wep_get_iv(struct ieee80211_local *local,
- struct ieee80211_key *key, u8 *iv)
-{
- local->wep_iv++;
- if (ieee80211_wep_weak_iv(local->wep_iv, key->conf.keylen))
- local->wep_iv += 0x0100;
-
- if (!iv)
- return;
-
- *iv++ = (local->wep_iv >> 16) & 0xff;
- *iv++ = (local->wep_iv >> 8) & 0xff;
- *iv++ = local->wep_iv & 0xff;
- *iv++ = key->conf.keyidx << 6;
-}
-
-
-static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local,
- struct sk_buff *skb,
- struct ieee80211_key *key)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc;
- int hdrlen;
- u8 *newhdr;
-
- fc = le16_to_cpu(hdr->frame_control);
- fc |= IEEE80211_FCTL_PROTECTED;
- hdr->frame_control = cpu_to_le16(fc);
-
- if ((skb_headroom(skb) < WEP_IV_LEN ||
- skb_tailroom(skb) < WEP_ICV_LEN)) {
- I802_DEBUG_INC(local->tx_expand_skb_head);
- if (unlikely(pskb_expand_head(skb, WEP_IV_LEN, WEP_ICV_LEN,
- GFP_ATOMIC)))
- return NULL;
- }
-
- hdrlen = ieee80211_get_hdrlen(fc);
- newhdr = skb_push(skb, WEP_IV_LEN);
- memmove(newhdr, newhdr + WEP_IV_LEN, hdrlen);
- ieee80211_wep_get_iv(local, key, newhdr + hdrlen);
- return newhdr + hdrlen;
-}
-
-
-static void ieee80211_wep_remove_iv(struct ieee80211_local *local,
- struct sk_buff *skb,
- struct ieee80211_key *key)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc;
- int hdrlen;
-
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
- memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen);
- skb_pull(skb, WEP_IV_LEN);
-}
-
-
-/* Perform WEP encryption using given key. data buffer must have tailroom
- * for 4-byte ICV. data_len must not include this ICV. Note: this function
- * does _not_ add IV. data = RC4(data | CRC32(data)) */
-void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
- size_t klen, u8 *data, size_t data_len)
-{
- struct blkcipher_desc desc = { .tfm = tfm };
- struct scatterlist sg;
- __le32 *icv;
-
- icv = (__le32 *)(data + data_len);
- *icv = cpu_to_le32(~crc32_le(~0, data, data_len));
-
- crypto_blkcipher_setkey(tfm, rc4key, klen);
- sg.page = virt_to_page(data);
- sg.offset = offset_in_page(data);
- sg.length = data_len + WEP_ICV_LEN;
- crypto_blkcipher_encrypt(&desc, &sg, &sg, sg.length);
-}
-
-
-/* Perform WEP encryption on given skb. 4 bytes of extra space (IV) in the
- * beginning of the buffer 4 bytes of extra space (ICV) in the end of the
- * buffer will be added. Both IV and ICV will be transmitted, so the
- * payload length increases with 8 bytes.
- *
- * WEP frame payload: IV + TX key idx, RC4(data), ICV = RC4(CRC32(data))
- */
-int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_key *key)
-{
- u32 klen;
- u8 *rc4key, *iv;
- size_t len;
-
- if (!key || key->conf.alg != ALG_WEP)
- return -1;
-
- klen = 3 + key->conf.keylen;
- rc4key = kmalloc(klen, GFP_ATOMIC);
- if (!rc4key)
- return -1;
-
- iv = ieee80211_wep_add_iv(local, skb, key);
- if (!iv) {
- kfree(rc4key);
- return -1;
- }
-
- len = skb->len - (iv + WEP_IV_LEN - skb->data);
-
- /* Prepend 24-bit IV to RC4 key */
- memcpy(rc4key, iv, 3);
-
- /* Copy rest of the WEP key (the secret part) */
- memcpy(rc4key + 3, key->conf.key, key->conf.keylen);
-
- /* Add room for ICV */
- skb_put(skb, WEP_ICV_LEN);
-
- ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, klen,
- iv + WEP_IV_LEN, len);
-
- kfree(rc4key);
-
- return 0;
-}
-
-
-/* Perform WEP decryption using given key. data buffer includes encrypted
- * payload, including 4-byte ICV, but _not_ IV. data_len must not include ICV.
- * Return 0 on success and -1 on ICV mismatch. */
-int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
- size_t klen, u8 *data, size_t data_len)
-{
- struct blkcipher_desc desc = { .tfm = tfm };
- struct scatterlist sg;
- __le32 crc;
-
- crypto_blkcipher_setkey(tfm, rc4key, klen);
- sg.page = virt_to_page(data);
- sg.offset = offset_in_page(data);
- sg.length = data_len + WEP_ICV_LEN;
- crypto_blkcipher_decrypt(&desc, &sg, &sg, sg.length);
-
- crc = cpu_to_le32(~crc32_le(~0, data, data_len));
- if (memcmp(&crc, data + data_len, WEP_ICV_LEN) != 0)
- /* ICV mismatch */
- return -1;
-
- return 0;
-}
-
-
-/* Perform WEP decryption on given skb. Buffer includes whole WEP part of
- * the frame: IV (4 bytes), encrypted payload (including SNAP header),
- * ICV (4 bytes). skb->len includes both IV and ICV.
- *
- * Returns 0 if frame was decrypted successfully and ICV was correct and -1 on
- * failure. If frame is OK, IV and ICV will be removed, i.e., decrypted payload
- * is moved to the beginning of the skb and skb length will be reduced.
- */
-int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_key *key)
-{
- u32 klen;
- u8 *rc4key;
- u8 keyidx;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc;
- int hdrlen;
- size_t len;
- int ret = 0;
-
- fc = le16_to_cpu(hdr->frame_control);
- if (!(fc & IEEE80211_FCTL_PROTECTED))
- return -1;
-
- hdrlen = ieee80211_get_hdrlen(fc);
-
- if (skb->len < 8 + hdrlen)
- return -1;
-
- len = skb->len - hdrlen - 8;
-
- keyidx = skb->data[hdrlen + 3] >> 6;
-
- if (!key || keyidx != key->conf.keyidx || key->conf.alg != ALG_WEP)
- return -1;
-
- klen = 3 + key->conf.keylen;
-
- rc4key = kmalloc(klen, GFP_ATOMIC);
- if (!rc4key)
- return -1;
-
- /* Prepend 24-bit IV to RC4 key */
- memcpy(rc4key, skb->data + hdrlen, 3);
-
- /* Copy rest of the WEP key (the secret part) */
- memcpy(rc4key + 3, key->conf.key, key->conf.keylen);
-
- if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen,
- skb->data + hdrlen + WEP_IV_LEN,
- len)) {
- printk(KERN_DEBUG "WEP decrypt failed (ICV)\n");
- ret = -1;
- }
-
- kfree(rc4key);
-
- /* Trim ICV */
- skb_trim(skb, skb->len - WEP_ICV_LEN);
-
- /* Remove IV */
- memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen);
- skb_pull(skb, WEP_IV_LEN);
-
- return ret;
-}
-
-
-u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc;
- int hdrlen;
- u8 *ivpos;
- u32 iv;
-
- fc = le16_to_cpu(hdr->frame_control);
- if (!(fc & IEEE80211_FCTL_PROTECTED))
- return NULL;
-
- hdrlen = ieee80211_get_hdrlen(fc);
- ivpos = skb->data + hdrlen;
- iv = (ivpos[0] << 16) | (ivpos[1] << 8) | ivpos[2];
-
- if (ieee80211_wep_weak_iv(iv, key->conf.keylen))
- return ivpos;
-
- return NULL;
-}
-
-ieee80211_txrx_result
-ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx)
-{
- if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
- ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH))
- return TXRX_CONTINUE;
-
- if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) {
- if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key)) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: RX WEP frame, decrypt "
- "failed\n", rx->dev->name);
- return TXRX_DROP;
- }
- } else if (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED)) {
- ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key);
- /* remove ICV */
- skb_trim(rx->skb, rx->skb->len - 4);
- }
-
- return TXRX_CONTINUE;
-}
-
-static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb)
-{
- if (!(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) {
- if (ieee80211_wep_encrypt(tx->local, skb, tx->key))
- return -1;
- } else {
- tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
- if (tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) {
- if (!ieee80211_wep_add_iv(tx->local, skb, tx->key))
- return -1;
- }
- }
- return 0;
-}
-
-ieee80211_txrx_result
-ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 fc;
-
- fc = le16_to_cpu(hdr->frame_control);
-
- if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
- ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)))
- return TXRX_CONTINUE;
-
- tx->u.tx.control->iv_len = WEP_IV_LEN;
- tx->u.tx.control->icv_len = WEP_ICV_LEN;
- ieee80211_tx_set_iswep(tx);
-
- if (wep_encrypt_skb(tx, tx->skb) < 0) {
- I802_DEBUG_INC(tx->local->tx_handlers_drop_wep);
- return TXRX_DROP;
- }
-
- if (tx->u.tx.extra_frag) {
- int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- if (wep_encrypt_skb(tx, tx->u.tx.extra_frag[i]) < 0) {
- I802_DEBUG_INC(tx->local->
- tx_handlers_drop_wep);
- return TXRX_DROP;
- }
- }
- }
-
- return TXRX_CONTINUE;
-}
+++ /dev/null
-/*
- * Software WEP encryption implementation
- * Copyright 2002, Jouni Malinen <jkmaline@cc.hut.fi>
- * Copyright 2003, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef WEP_H
-#define WEP_H
-
-#include <linux/skbuff.h>
-#include <linux/types.h>
-#include "ieee80211_i.h"
-#include "ieee80211_key.h"
-
-int ieee80211_wep_init(struct ieee80211_local *local);
-void ieee80211_wep_free(struct ieee80211_local *local);
-void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
- size_t klen, u8 *data, size_t data_len);
-int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
- size_t klen, u8 *data, size_t data_len);
-int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_key *key);
-int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_key *key);
-u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key);
-
-ieee80211_txrx_result
-ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx);
-ieee80211_txrx_result
-ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx);
-
-#endif /* WEP_H */
+++ /dev/null
-/*
- * Copyright 2004, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/module.h>
-#include <linux/if_arp.h>
-#include <linux/types.h>
-#include <net/ip.h>
-#include <net/pkt_sched.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "wme.h"
-
-/* maximum number of hardware queues we support. */
-#define TC_80211_MAX_QUEUES 8
-
-struct ieee80211_sched_data
-{
- struct tcf_proto *filter_list;
- struct Qdisc *queues[TC_80211_MAX_QUEUES];
- struct sk_buff_head requeued[TC_80211_MAX_QUEUES];
-};
-
-
-/* given a data frame determine the 802.1p/1d tag to use */
-static inline unsigned classify_1d(struct sk_buff *skb, struct Qdisc *qd)
-{
- struct iphdr *ip;
- int dscp;
- int offset;
-
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct tcf_result res = { -1, 0 };
-
- /* if there is a user set filter list, call out to that */
- if (q->filter_list) {
- tc_classify(skb, q->filter_list, &res);
- if (res.class != -1)
- return res.class;
- }
-
- /* skb->priority values from 256->263 are magic values to
- * directly indicate a specific 802.1d priority.
- * This is used to allow 802.1d priority to be passed directly in
- * from VLAN tags, etc. */
- if (skb->priority >= 256 && skb->priority <= 263)
- return skb->priority - 256;
-
- /* check there is a valid IP header present */
- offset = ieee80211_get_hdrlen_from_skb(skb) + 8 /* LLC + proto */;
- if (skb->protocol != __constant_htons(ETH_P_IP) ||
- skb->len < offset + sizeof(*ip))
- return 0;
-
- ip = (struct iphdr *) (skb->data + offset);
-
- dscp = ip->tos & 0xfc;
- if (dscp & 0x1c)
- return 0;
- return dscp >> 5;
-}
-
-
-static inline int wme_downgrade_ac(struct sk_buff *skb)
-{
- switch (skb->priority) {
- case 6:
- case 7:
- skb->priority = 5; /* VO -> VI */
- return 0;
- case 4:
- case 5:
- skb->priority = 3; /* VI -> BE */
- return 0;
- case 0:
- case 3:
- skb->priority = 2; /* BE -> BK */
- return 0;
- default:
- return -1;
- }
-}
-
-
-/* positive return value indicates which queue to use
- * negative return value indicates to drop the frame */
-static inline int classify80211(struct sk_buff *skb, struct Qdisc *qd)
-{
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- unsigned short fc = le16_to_cpu(hdr->frame_control);
- int qos;
- const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };
-
- /* see if frame is data or non data frame */
- if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)) {
- /* management frames go on AC_VO queue, but are sent
- * without QoS control fields */
- return IEEE80211_TX_QUEUE_DATA0;
- }
-
- if (0 /* injected */) {
- /* use AC from radiotap */
- }
-
- /* is this a QoS frame? */
- qos = fc & IEEE80211_STYPE_QOS_DATA;
-
- if (!qos) {
- skb->priority = 0; /* required for correct WPA/11i MIC */
- return ieee802_1d_to_ac[skb->priority];
- }
-
- /* use the data classifier to determine what 802.1d tag the
- * data frame has */
- skb->priority = classify_1d(skb, qd);
-
- /* in case we are a client verify acm is not set for this ac */
- while (unlikely(local->wmm_acm & BIT(skb->priority))) {
- if (wme_downgrade_ac(skb)) {
- /* No AC with lower priority has acm=0, drop packet. */
- return -1;
- }
- }
-
- /* look up which queue to use for frames with this 1d tag */
- return ieee802_1d_to_ac[skb->priority];
-}
-
-
-static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
-{
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_tx_packet_data *pkt_data =
- (struct ieee80211_tx_packet_data *) skb->cb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- unsigned short fc = le16_to_cpu(hdr->frame_control);
- struct Qdisc *qdisc;
- int err, queue;
-
- if (pkt_data->flags & IEEE80211_TXPD_REQUEUE) {
- skb_queue_tail(&q->requeued[pkt_data->queue], skb);
- qd->q.qlen++;
- return 0;
- }
-
- queue = classify80211(skb, qd);
-
- /* now we know the 1d priority, fill in the QoS header if there is one
- */
- if (WLAN_FC_IS_QOS_DATA(fc)) {
- u8 *p = skb->data + ieee80211_get_hdrlen(fc) - 2;
- u8 qos_hdr = skb->priority & QOS_CONTROL_TAG1D_MASK;
- if (local->wifi_wme_noack_test)
- qos_hdr |= QOS_CONTROL_ACK_POLICY_NOACK <<
- QOS_CONTROL_ACK_POLICY_SHIFT;
- /* qos header is 2 bytes, second reserved */
- *p = qos_hdr;
- p++;
- *p = 0;
- }
-
- if (unlikely(queue >= local->hw.queues)) {
-#if 0
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s - queue=%d (hw does not "
- "support) -> %d\n",
- __func__, queue, local->hw.queues - 1);
- }
-#endif
- queue = local->hw.queues - 1;
- }
-
- if (unlikely(queue < 0)) {
- kfree_skb(skb);
- err = NET_XMIT_DROP;
- } else {
- pkt_data->queue = (unsigned int) queue;
- qdisc = q->queues[queue];
- err = qdisc->enqueue(skb, qdisc);
- if (err == NET_XMIT_SUCCESS) {
- qd->q.qlen++;
- qd->bstats.bytes += skb->len;
- qd->bstats.packets++;
- return NET_XMIT_SUCCESS;
- }
- }
- qd->qstats.drops++;
- return err;
-}
-
-
-/* TODO: clean up the cases where master_hard_start_xmit
- * returns non 0 - it shouldn't ever do that. Once done we
- * can remove this function */
-static int wme_qdiscop_requeue(struct sk_buff *skb, struct Qdisc* qd)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_tx_packet_data *pkt_data =
- (struct ieee80211_tx_packet_data *) skb->cb;
- struct Qdisc *qdisc;
- int err;
-
- /* we recorded which queue to use earlier! */
- qdisc = q->queues[pkt_data->queue];
-
- if ((err = qdisc->ops->requeue(skb, qdisc)) == 0) {
- qd->q.qlen++;
- return 0;
- }
- qd->qstats.drops++;
- return err;
-}
-
-
-static struct sk_buff *wme_qdiscop_dequeue(struct Qdisc* qd)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct net_device *dev = qd->dev;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- struct sk_buff *skb;
- struct Qdisc *qdisc;
- int queue;
-
- /* check all the h/w queues in numeric/priority order */
- for (queue = 0; queue < hw->queues; queue++) {
- /* see if there is room in this hardware queue */
- if (test_bit(IEEE80211_LINK_STATE_XOFF,
- &local->state[queue]) ||
- test_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[queue]))
- continue;
-
- /* there is space - try and get a frame */
- skb = skb_dequeue(&q->requeued[queue]);
- if (skb) {
- qd->q.qlen--;
- return skb;
- }
-
- qdisc = q->queues[queue];
- skb = qdisc->dequeue(qdisc);
- if (skb) {
- qd->q.qlen--;
- return skb;
- }
- }
- /* returning a NULL here when all the h/w queues are full means we
- * never need to call netif_stop_queue in the driver */
- return NULL;
-}
-
-
-static void wme_qdiscop_reset(struct Qdisc* qd)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- int queue;
-
- /* QUESTION: should we have some hardware flush functionality here? */
-
- for (queue = 0; queue < hw->queues; queue++) {
- skb_queue_purge(&q->requeued[queue]);
- qdisc_reset(q->queues[queue]);
- }
- qd->q.qlen = 0;
-}
-
-
-static void wme_qdiscop_destroy(struct Qdisc* qd)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- int queue;
-
- tcf_destroy_chain(q->filter_list);
- q->filter_list = NULL;
-
- for (queue=0; queue < hw->queues; queue++) {
- skb_queue_purge(&q->requeued[queue]);
- qdisc_destroy(q->queues[queue]);
- q->queues[queue] = &noop_qdisc;
- }
-}
-
-
-/* called whenever parameters are updated on existing qdisc */
-static int wme_qdiscop_tune(struct Qdisc *qd, struct rtattr *opt)
-{
-/* struct ieee80211_sched_data *q = qdisc_priv(qd);
-*/
- /* check our options block is the right size */
- /* copy any options to our local structure */
-/* Ignore options block for now - always use static mapping
- struct tc_ieee80211_qopt *qopt = RTA_DATA(opt);
-
- if (opt->rta_len < RTA_LENGTH(sizeof(*qopt)))
- return -EINVAL;
- memcpy(q->tag2queue, qopt->tag2queue, sizeof(qopt->tag2queue));
-*/
- return 0;
-}
-
-
-/* called during initial creation of qdisc on device */
-static int wme_qdiscop_init(struct Qdisc *qd, struct rtattr *opt)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct net_device *dev = qd->dev;
- struct ieee80211_local *local;
- int queues;
- int err = 0, i;
-
- /* check that device is a mac80211 device */
- if (!dev->ieee80211_ptr ||
- dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
- return -EINVAL;
-
- /* check this device is an ieee80211 master type device */
- if (dev->type != ARPHRD_IEEE80211)
- return -EINVAL;
-
- /* check that there is no qdisc currently attached to device
- * this ensures that we will be the root qdisc. (I can't find a better
- * way to test this explicitly) */
- if (dev->qdisc_sleeping != &noop_qdisc)
- return -EINVAL;
-
- if (qd->flags & TCQ_F_INGRESS)
- return -EINVAL;
-
- local = wdev_priv(dev->ieee80211_ptr);
- queues = local->hw.queues;
-
- /* if options were passed in, set them */
- if (opt) {
- err = wme_qdiscop_tune(qd, opt);
- }
-
- /* create child queues */
- for (i = 0; i < queues; i++) {
- skb_queue_head_init(&q->requeued[i]);
- q->queues[i] = qdisc_create_dflt(qd->dev, &pfifo_qdisc_ops,
- qd->handle);
- if (!q->queues[i]) {
- q->queues[i] = &noop_qdisc;
- printk(KERN_ERR "%s child qdisc %i creation failed", dev->name, i);
- }
- }
-
- return err;
-}
-
-static int wme_qdiscop_dump(struct Qdisc *qd, struct sk_buff *skb)
-{
-/* struct ieee80211_sched_data *q = qdisc_priv(qd);
- unsigned char *p = skb->tail;
- struct tc_ieee80211_qopt opt;
-
- memcpy(&opt.tag2queue, q->tag2queue, TC_80211_MAX_TAG + 1);
- RTA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
-*/ return skb->len;
-/*
-rtattr_failure:
- skb_trim(skb, p - skb->data);*/
- return -1;
-}
-
-
-static int wme_classop_graft(struct Qdisc *qd, unsigned long arg,
- struct Qdisc *new, struct Qdisc **old)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- unsigned long queue = arg - 1;
-
- if (queue >= hw->queues)
- return -EINVAL;
-
- if (!new)
- new = &noop_qdisc;
-
- sch_tree_lock(qd);
- *old = q->queues[queue];
- q->queues[queue] = new;
- qdisc_reset(*old);
- sch_tree_unlock(qd);
-
- return 0;
-}
-
-
-static struct Qdisc *
-wme_classop_leaf(struct Qdisc *qd, unsigned long arg)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- unsigned long queue = arg - 1;
-
- if (queue >= hw->queues)
- return NULL;
-
- return q->queues[queue];
-}
-
-
-static unsigned long wme_classop_get(struct Qdisc *qd, u32 classid)
-{
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- unsigned long queue = TC_H_MIN(classid);
-
- if (queue - 1 >= hw->queues)
- return 0;
-
- return queue;
-}
-
-
-static unsigned long wme_classop_bind(struct Qdisc *qd, unsigned long parent,
- u32 classid)
-{
- return wme_classop_get(qd, classid);
-}
-
-
-static void wme_classop_put(struct Qdisc *q, unsigned long cl)
-{
-}
-
-
-static int wme_classop_change(struct Qdisc *qd, u32 handle, u32 parent,
- struct rtattr **tca, unsigned long *arg)
-{
- unsigned long cl = *arg;
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
-
- if (cl - 1 > hw->queues)
- return -ENOENT;
-
- /* TODO: put code to program hardware queue parameters here,
- * to allow programming from tc command line */
-
- return 0;
-}
-
-
-/* we don't support deleting hardware queues
- * when we add WMM-SA support - TSPECs may be deleted here */
-static int wme_classop_delete(struct Qdisc *qd, unsigned long cl)
-{
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
-
- if (cl - 1 > hw->queues)
- return -ENOENT;
- return 0;
-}
-
-
-static int wme_classop_dump_class(struct Qdisc *qd, unsigned long cl,
- struct sk_buff *skb, struct tcmsg *tcm)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
-
- if (cl - 1 > hw->queues)
- return -ENOENT;
- tcm->tcm_handle = TC_H_MIN(cl);
- tcm->tcm_parent = qd->handle;
- tcm->tcm_info = q->queues[cl-1]->handle; /* do we need this? */
- return 0;
-}
-
-
-static void wme_classop_walk(struct Qdisc *qd, struct qdisc_walker *arg)
-{
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- int queue;
-
- if (arg->stop)
- return;
-
- for (queue = 0; queue < hw->queues; queue++) {
- if (arg->count < arg->skip) {
- arg->count++;
- continue;
- }
- /* we should return classids for our internal queues here
- * as well as the external ones */
- if (arg->fn(qd, queue+1, arg) < 0) {
- arg->stop = 1;
- break;
- }
- arg->count++;
- }
-}
-
-
-static struct tcf_proto ** wme_classop_find_tcf(struct Qdisc *qd,
- unsigned long cl)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
-
- if (cl)
- return NULL;
-
- return &q->filter_list;
-}
-
-
-/* this qdisc is classful (i.e. has classes, some of which may have leaf qdiscs attached)
- * - these are the operations on the classes */
-static struct Qdisc_class_ops class_ops =
-{
- .graft = wme_classop_graft,
- .leaf = wme_classop_leaf,
-
- .get = wme_classop_get,
- .put = wme_classop_put,
- .change = wme_classop_change,
- .delete = wme_classop_delete,
- .walk = wme_classop_walk,
-
- .tcf_chain = wme_classop_find_tcf,
- .bind_tcf = wme_classop_bind,
- .unbind_tcf = wme_classop_put,
-
- .dump = wme_classop_dump_class,
-};
-
-
-/* queueing discipline operations */
-static struct Qdisc_ops wme_qdisc_ops =
-{
- .next = NULL,
- .cl_ops = &class_ops,
- .id = "ieee80211",
- .priv_size = sizeof(struct ieee80211_sched_data),
-
- .enqueue = wme_qdiscop_enqueue,
- .dequeue = wme_qdiscop_dequeue,
- .requeue = wme_qdiscop_requeue,
- .drop = NULL, /* drop not needed since we are always the root qdisc */
-
- .init = wme_qdiscop_init,
- .reset = wme_qdiscop_reset,
- .destroy = wme_qdiscop_destroy,
- .change = wme_qdiscop_tune,
-
- .dump = wme_qdiscop_dump,
-};
-
-
-void ieee80211_install_qdisc(struct net_device *dev)
-{
- struct Qdisc *qdisc;
-
- qdisc = qdisc_create_dflt(dev, &wme_qdisc_ops, TC_H_ROOT);
- if (!qdisc) {
- printk(KERN_ERR "%s: qdisc installation failed\n", dev->name);
- return;
- }
-
- /* same handle as would be allocated by qdisc_alloc_handle() */
- qdisc->handle = 0x80010000;
-
- qdisc_lock_tree(dev);
- list_add_tail(&qdisc->list, &dev->qdisc_list);
- dev->qdisc_sleeping = qdisc;
- qdisc_unlock_tree(dev);
-}
-
-
-int ieee80211_qdisc_installed(struct net_device *dev)
-{
- return dev->qdisc_sleeping->ops == &wme_qdisc_ops;
-}
-
-
-int ieee80211_wme_register(void)
-{
- return register_qdisc(&wme_qdisc_ops);
-}
-
-
-void ieee80211_wme_unregister(void)
-{
- unregister_qdisc(&wme_qdisc_ops);
-}
+++ /dev/null
-/*
- * IEEE 802.11 driver (80211.o) - QoS datatypes
- * Copyright 2004, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef _WME_H
-#define _WME_H
-
-#include <linux/netdevice.h>
-#include "ieee80211_i.h"
-
-#define QOS_CONTROL_LEN 2
-
-#define QOS_CONTROL_ACK_POLICY_NORMAL 0
-#define QOS_CONTROL_ACK_POLICY_NOACK 1
-
-#define QOS_CONTROL_TID_MASK 0x0f
-#define QOS_CONTROL_ACK_POLICY_SHIFT 5
-
-#define QOS_CONTROL_TAG1D_MASK 0x07
-
-static inline int WLAN_FC_IS_QOS_DATA(u16 fc)
-{
- return (fc & 0x8C) == 0x88;
-}
-
-#ifdef CONFIG_NET_SCHED
-void ieee80211_install_qdisc(struct net_device *dev);
-int ieee80211_qdisc_installed(struct net_device *dev);
-
-int ieee80211_wme_register(void);
-void ieee80211_wme_unregister(void);
-#else
-static inline void ieee80211_install_qdisc(struct net_device *dev)
-{
-}
-static inline int ieee80211_qdisc_installed(struct net_device *dev)
-{
- return 0;
-}
-
-static inline int ieee80211_wme_register(void)
-{
- return 0;
-}
-static inline void ieee80211_wme_unregister(void)
-{
-}
-#endif /* CONFIG_NET_SCHED */
-
-#endif /* _WME_H */
+++ /dev/null
-/*
- * Copyright 2002-2004, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/compiler.h>
-#include <net/mac80211.h>
-
-#include "ieee80211_i.h"
-#include "michael.h"
-#include "tkip.h"
-#include "aes_ccm.h"
-#include "wpa.h"
-
-static int ieee80211_get_hdr_info(const struct sk_buff *skb, u8 **sa, u8 **da,
- u8 *qos_tid, u8 **data, size_t *data_len)
-{
- struct ieee80211_hdr *hdr;
- size_t hdrlen;
- u16 fc;
- int a4_included;
- u8 *pos;
-
- hdr = (struct ieee80211_hdr *) skb->data;
- fc = le16_to_cpu(hdr->frame_control);
-
- hdrlen = 24;
- if ((fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) ==
- (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
- hdrlen += ETH_ALEN;
- *sa = hdr->addr4;
- *da = hdr->addr3;
- } else if (fc & IEEE80211_FCTL_FROMDS) {
- *sa = hdr->addr3;
- *da = hdr->addr1;
- } else if (fc & IEEE80211_FCTL_TODS) {
- *sa = hdr->addr2;
- *da = hdr->addr3;
- } else {
- *sa = hdr->addr2;
- *da = hdr->addr1;
- }
-
- if (fc & 0x80)
- hdrlen += 2;
-
- *data = skb->data + hdrlen;
- *data_len = skb->len - hdrlen;
-
- a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
- (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
- if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- fc & IEEE80211_STYPE_QOS_DATA) {
- pos = (u8 *) &hdr->addr4;
- if (a4_included)
- pos += 6;
- *qos_tid = pos[0] & 0x0f;
- *qos_tid |= 0x80; /* qos_included flag */
- } else
- *qos_tid = 0;
-
- return skb->len < hdrlen ? -1 : 0;
-}
-
-
-ieee80211_txrx_result
-ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx)
-{
- u8 *data, *sa, *da, *key, *mic, qos_tid;
- size_t data_len;
- u16 fc;
- struct sk_buff *skb = tx->skb;
- int authenticator;
- int wpa_test = 0;
-
- fc = tx->fc;
-
- if (!tx->key || tx->key->conf.alg != ALG_TKIP || skb->len < 24 ||
- !WLAN_FC_DATA_PRESENT(fc))
- return TXRX_CONTINUE;
-
- if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len))
- return TXRX_DROP;
-
- if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
- !(tx->flags & IEEE80211_TXRXD_FRAGMENTED) &&
- !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) &&
- !wpa_test) {
- /* hwaccel - with no need for preallocated room for Michael MIC
- */
- return TXRX_CONTINUE;
- }
-
- if (skb_tailroom(skb) < MICHAEL_MIC_LEN) {
- I802_DEBUG_INC(tx->local->tx_expand_skb_head);
- if (unlikely(pskb_expand_head(skb, TKIP_IV_LEN,
- MICHAEL_MIC_LEN + TKIP_ICV_LEN,
- GFP_ATOMIC))) {
- printk(KERN_DEBUG "%s: failed to allocate more memory "
- "for Michael MIC\n", tx->dev->name);
- return TXRX_DROP;
- }
- }
-
-#if 0
- authenticator = fc & IEEE80211_FCTL_FROMDS; /* FIX */
-#else
- authenticator = 1;
-#endif
- key = &tx->key->conf.key[authenticator ? ALG_TKIP_TEMP_AUTH_TX_MIC_KEY :
- ALG_TKIP_TEMP_AUTH_RX_MIC_KEY];
- mic = skb_put(skb, MICHAEL_MIC_LEN);
- michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
-
- return TXRX_CONTINUE;
-}
-
-
-ieee80211_txrx_result
-ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
-{
- u8 *data, *sa, *da, *key = NULL, qos_tid;
- size_t data_len;
- u16 fc;
- u8 mic[MICHAEL_MIC_LEN];
- struct sk_buff *skb = rx->skb;
- int authenticator = 1, wpa_test = 0;
-
- fc = rx->fc;
-
- /*
- * No way to verify the MIC if the hardware stripped it
- */
- if (rx->u.rx.status->flag & RX_FLAG_MMIC_STRIPPED)
- return TXRX_CONTINUE;
-
- if (!rx->key || rx->key->conf.alg != ALG_TKIP ||
- !(rx->fc & IEEE80211_FCTL_PROTECTED) || !WLAN_FC_DATA_PRESENT(fc))
- return TXRX_CONTINUE;
-
- if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len)
- || data_len < MICHAEL_MIC_LEN)
- return TXRX_DROP;
-
- data_len -= MICHAEL_MIC_LEN;
-
-#if 0
- authenticator = fc & IEEE80211_FCTL_TODS; /* FIX */
-#else
- authenticator = 1;
-#endif
- key = &rx->key->conf.key[authenticator ? ALG_TKIP_TEMP_AUTH_RX_MIC_KEY :
- ALG_TKIP_TEMP_AUTH_TX_MIC_KEY];
- michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
- if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0 || wpa_test) {
- if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
- return TXRX_DROP;
-
- printk(KERN_DEBUG "%s: invalid Michael MIC in data frame from "
- MAC_FMT "\n", rx->dev->name, MAC_ARG(sa));
-
- mac80211_ev_michael_mic_failure(rx->dev, rx->key->conf.keyidx,
- (void *) skb->data);
- return TXRX_DROP;
- }
-
- /* remove Michael MIC from payload */
- skb_trim(skb, skb->len - MICHAEL_MIC_LEN);
-
- /* update IV in key information to be able to detect replays */
- rx->key->u.tkip.iv32_rx[rx->u.rx.queue] = rx->u.rx.tkip_iv32;
- rx->key->u.tkip.iv16_rx[rx->u.rx.queue] = rx->u.rx.tkip_iv16;
-
- return TXRX_CONTINUE;
-}
-
-
-static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx,
- struct sk_buff *skb, int test)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_key *key = tx->key;
- int hdrlen, len, tailneed;
- u16 fc;
- u8 *pos;
-
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
- len = skb->len - hdrlen;
-
- if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
- tailneed = 0;
- else
- tailneed = TKIP_ICV_LEN;
-
- if ((skb_headroom(skb) < TKIP_IV_LEN ||
- skb_tailroom(skb) < tailneed)) {
- I802_DEBUG_INC(tx->local->tx_expand_skb_head);
- if (unlikely(pskb_expand_head(skb, TKIP_IV_LEN, tailneed,
- GFP_ATOMIC)))
- return -1;
- }
-
- pos = skb_push(skb, TKIP_IV_LEN);
- memmove(pos, pos + TKIP_IV_LEN, hdrlen);
- pos += hdrlen;
-
- /* Increase IV for the frame */
- key->u.tkip.iv16++;
- if (key->u.tkip.iv16 == 0)
- key->u.tkip.iv32++;
-
- if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
- hdr = (struct ieee80211_hdr *)skb->data;
-
- /* hwaccel - with preallocated room for IV */
- ieee80211_tkip_add_iv(pos, key,
- (u8) (key->u.tkip.iv16 >> 8),
- (u8) (((key->u.tkip.iv16 >> 8) | 0x20) &
- 0x7f),
- (u8) key->u.tkip.iv16);
-
- tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
- return 0;
- }
-
- /* Add room for ICV */
- skb_put(skb, TKIP_ICV_LEN);
-
- hdr = (struct ieee80211_hdr *) skb->data;
- ieee80211_tkip_encrypt_data(tx->local->wep_tx_tfm,
- key, pos, len, hdr->addr2);
- return 0;
-}
-
-
-ieee80211_txrx_result
-ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 fc;
- struct sk_buff *skb = tx->skb;
- int wpa_test = 0, test = 0;
-
- fc = le16_to_cpu(hdr->frame_control);
-
- if (!WLAN_FC_DATA_PRESENT(fc))
- return TXRX_CONTINUE;
-
- tx->u.tx.control->icv_len = TKIP_ICV_LEN;
- tx->u.tx.control->iv_len = TKIP_IV_LEN;
- ieee80211_tx_set_iswep(tx);
-
- if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
- !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) &&
- !wpa_test) {
- /* hwaccel - with no need for preallocated room for IV/ICV */
- tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
- return TXRX_CONTINUE;
- }
-
- if (tkip_encrypt_skb(tx, skb, test) < 0)
- return TXRX_DROP;
-
- if (tx->u.tx.extra_frag) {
- int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- if (tkip_encrypt_skb(tx, tx->u.tx.extra_frag[i], test)
- < 0)
- return TXRX_DROP;
- }
- }
-
- return TXRX_CONTINUE;
-}
-
-
-ieee80211_txrx_result
-ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
- u16 fc;
- int hdrlen, res, hwaccel = 0, wpa_test = 0;
- struct ieee80211_key *key = rx->key;
- struct sk_buff *skb = rx->skb;
-
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
-
- if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
- return TXRX_CONTINUE;
-
- if (!rx->sta || skb->len - hdrlen < 12)
- return TXRX_DROP;
-
- if (rx->u.rx.status->flag & RX_FLAG_DECRYPTED) {
- if (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) {
- /*
- * Hardware took care of all processing, including
- * replay protection, and stripped the ICV/IV so
- * we cannot do any checks here.
- */
- return TXRX_CONTINUE;
- }
-
- /* let TKIP code verify IV, but skip decryption */
- hwaccel = 1;
- }
-
- res = ieee80211_tkip_decrypt_data(rx->local->wep_rx_tfm,
- key, skb->data + hdrlen,
- skb->len - hdrlen, rx->sta->addr,
- hwaccel, rx->u.rx.queue,
- &rx->u.rx.tkip_iv32,
- &rx->u.rx.tkip_iv16);
- if (res != TKIP_DECRYPT_OK || wpa_test) {
- printk(KERN_DEBUG "%s: TKIP decrypt failed for RX frame from "
- MAC_FMT " (res=%d)\n",
- rx->dev->name, MAC_ARG(rx->sta->addr), res);
- return TXRX_DROP;
- }
-
- /* Trim ICV */
- skb_trim(skb, skb->len - TKIP_ICV_LEN);
-
- /* Remove IV */
- memmove(skb->data + TKIP_IV_LEN, skb->data, hdrlen);
- skb_pull(skb, TKIP_IV_LEN);
-
- return TXRX_CONTINUE;
-}
-
-
-static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *b_0, u8 *aad,
- int encrypted)
-{
- u16 fc;
- int a4_included, qos_included;
- u8 qos_tid, *fc_pos, *data, *sa, *da;
- int len_a;
- size_t data_len;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-
- fc_pos = (u8 *) &hdr->frame_control;
- fc = fc_pos[0] ^ (fc_pos[1] << 8);
- a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
- (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
-
- ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len);
- data_len -= CCMP_HDR_LEN + (encrypted ? CCMP_MIC_LEN : 0);
- if (qos_tid & 0x80) {
- qos_included = 1;
- qos_tid &= 0x0f;
- } else
- qos_included = 0;
- /* First block, b_0 */
-
- b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */
- /* Nonce: QoS Priority | A2 | PN */
- b_0[1] = qos_tid;
- memcpy(&b_0[2], hdr->addr2, 6);
- memcpy(&b_0[8], pn, CCMP_PN_LEN);
- /* l(m) */
- b_0[14] = (data_len >> 8) & 0xff;
- b_0[15] = data_len & 0xff;
-
-
- /* AAD (extra authenticate-only data) / masked 802.11 header
- * FC | A1 | A2 | A3 | SC | [A4] | [QC] */
-
- len_a = a4_included ? 28 : 22;
- if (qos_included)
- len_a += 2;
-
- aad[0] = 0; /* (len_a >> 8) & 0xff; */
- aad[1] = len_a & 0xff;
- /* Mask FC: zero subtype b4 b5 b6 */
- aad[2] = fc_pos[0] & ~(BIT(4) | BIT(5) | BIT(6));
- /* Retry, PwrMgt, MoreData; set Protected */
- aad[3] = (fc_pos[1] & ~(BIT(3) | BIT(4) | BIT(5))) | BIT(6);
- memcpy(&aad[4], &hdr->addr1, 18);
-
- /* Mask Seq#, leave Frag# */
- aad[22] = *((u8 *) &hdr->seq_ctrl) & 0x0f;
- aad[23] = 0;
- if (a4_included) {
- memcpy(&aad[24], hdr->addr4, 6);
- aad[30] = 0;
- aad[31] = 0;
- } else
- memset(&aad[24], 0, 8);
- if (qos_included) {
- u8 *dpos = &aad[a4_included ? 30 : 24];
-
- /* Mask QoS Control field */
- dpos[0] = qos_tid;
- dpos[1] = 0;
- }
-}
-
-
-static inline void ccmp_pn2hdr(u8 *hdr, u8 *pn, int key_id)
-{
- hdr[0] = pn[5];
- hdr[1] = pn[4];
- hdr[2] = 0;
- hdr[3] = 0x20 | (key_id << 6);
- hdr[4] = pn[3];
- hdr[5] = pn[2];
- hdr[6] = pn[1];
- hdr[7] = pn[0];
-}
-
-
-static inline int ccmp_hdr2pn(u8 *pn, u8 *hdr)
-{
- pn[0] = hdr[7];
- pn[1] = hdr[6];
- pn[2] = hdr[5];
- pn[3] = hdr[4];
- pn[4] = hdr[1];
- pn[5] = hdr[0];
- return (hdr[3] >> 6) & 0x03;
-}
-
-
-static int ccmp_encrypt_skb(struct ieee80211_txrx_data *tx,
- struct sk_buff *skb, int test)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_key *key = tx->key;
- int hdrlen, len, tailneed;
- u16 fc;
- u8 *pos, *pn, *b_0, *aad, *scratch;
- int i;
-
- scratch = key->u.ccmp.tx_crypto_buf;
- b_0 = scratch + 3 * AES_BLOCK_LEN;
- aad = scratch + 4 * AES_BLOCK_LEN;
-
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
- len = skb->len - hdrlen;
-
- if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
- tailneed = 0;
- else
- tailneed = CCMP_MIC_LEN;
-
- if ((skb_headroom(skb) < CCMP_HDR_LEN ||
- skb_tailroom(skb) < tailneed)) {
- I802_DEBUG_INC(tx->local->tx_expand_skb_head);
- if (unlikely(pskb_expand_head(skb, CCMP_HDR_LEN, tailneed,
- GFP_ATOMIC)))
- return -1;
- }
-
- pos = skb_push(skb, CCMP_HDR_LEN);
- memmove(pos, pos + CCMP_HDR_LEN, hdrlen);
- hdr = (struct ieee80211_hdr *) pos;
- pos += hdrlen;
-
- /* PN = PN + 1 */
- pn = key->u.ccmp.tx_pn;
-
- for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
- pn[i]++;
- if (pn[i])
- break;
- }
-
- ccmp_pn2hdr(pos, pn, key->conf.keyidx);
-
- if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
- /* hwaccel - with preallocated room for CCMP header */
- tx->u.tx.control->key_idx = key->conf.hw_key_idx;
- return 0;
- }
-
- pos += CCMP_HDR_LEN;
- ccmp_special_blocks(skb, pn, b_0, aad, 0);
- ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, scratch, b_0, aad, pos, len,
- pos, skb_put(skb, CCMP_MIC_LEN));
-
- return 0;
-}
-
-
-ieee80211_txrx_result
-ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 fc;
- struct sk_buff *skb = tx->skb;
- int test = 0;
-
- fc = le16_to_cpu(hdr->frame_control);
-
- if (!WLAN_FC_DATA_PRESENT(fc))
- return TXRX_CONTINUE;
-
- tx->u.tx.control->icv_len = CCMP_MIC_LEN;
- tx->u.tx.control->iv_len = CCMP_HDR_LEN;
- ieee80211_tx_set_iswep(tx);
-
- if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
- !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
- /* hwaccel - with no need for preallocated room for CCMP "
- * header or MIC fields */
- tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
- return TXRX_CONTINUE;
- }
-
- if (ccmp_encrypt_skb(tx, skb, test) < 0)
- return TXRX_DROP;
-
- if (tx->u.tx.extra_frag) {
- int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- if (ccmp_encrypt_skb(tx, tx->u.tx.extra_frag[i], test)
- < 0)
- return TXRX_DROP;
- }
- }
-
- return TXRX_CONTINUE;
-}
-
-
-ieee80211_txrx_result
-ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
- u16 fc;
- int hdrlen;
- struct ieee80211_key *key = rx->key;
- struct sk_buff *skb = rx->skb;
- u8 pn[CCMP_PN_LEN];
- int data_len;
-
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
-
- if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
- return TXRX_CONTINUE;
-
- data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN;
- if (!rx->sta || data_len < 0)
- return TXRX_DROP;
-
- if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
- (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED))
- return TXRX_CONTINUE;
-
- (void) ccmp_hdr2pn(pn, skb->data + hdrlen);
-
- if (memcmp(pn, key->u.ccmp.rx_pn[rx->u.rx.queue], CCMP_PN_LEN) <= 0) {
-#ifdef CONFIG_MAC80211_DEBUG
- u8 *ppn = key->u.ccmp.rx_pn[rx->u.rx.queue];
- printk(KERN_DEBUG "%s: CCMP replay detected for RX frame from "
- MAC_FMT " (RX PN %02x%02x%02x%02x%02x%02x <= prev. PN "
- "%02x%02x%02x%02x%02x%02x)\n", rx->dev->name,
- MAC_ARG(rx->sta->addr),
- pn[0], pn[1], pn[2], pn[3], pn[4], pn[5],
- ppn[0], ppn[1], ppn[2], ppn[3], ppn[4], ppn[5]);
-#endif /* CONFIG_MAC80211_DEBUG */
- key->u.ccmp.replays++;
- return TXRX_DROP;
- }
-
- if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) {
- /* hardware didn't decrypt/verify MIC */
- u8 *scratch, *b_0, *aad;
-
- scratch = key->u.ccmp.rx_crypto_buf;
- b_0 = scratch + 3 * AES_BLOCK_LEN;
- aad = scratch + 4 * AES_BLOCK_LEN;
-
- ccmp_special_blocks(skb, pn, b_0, aad, 1);
-
- if (ieee80211_aes_ccm_decrypt(
- key->u.ccmp.tfm, scratch, b_0, aad,
- skb->data + hdrlen + CCMP_HDR_LEN, data_len,
- skb->data + skb->len - CCMP_MIC_LEN,
- skb->data + hdrlen + CCMP_HDR_LEN)) {
- printk(KERN_DEBUG "%s: CCMP decrypt failed for RX "
- "frame from " MAC_FMT "\n", rx->dev->name,
- MAC_ARG(rx->sta->addr));
- return TXRX_DROP;
- }
- }
-
- memcpy(key->u.ccmp.rx_pn[rx->u.rx.queue], pn, CCMP_PN_LEN);
-
- /* Remove CCMP header and MIC */
- skb_trim(skb, skb->len - CCMP_MIC_LEN);
- memmove(skb->data + CCMP_HDR_LEN, skb->data, hdrlen);
- skb_pull(skb, CCMP_HDR_LEN);
-
- return TXRX_CONTINUE;
-}
-
+++ /dev/null
-/*
- * Copyright 2002-2004, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef WPA_H
-#define WPA_H
-
-#include <linux/skbuff.h>
-#include <linux/types.h>
-#include "ieee80211_i.h"
-
-ieee80211_txrx_result
-ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx);
-ieee80211_txrx_result
-ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx);
-
-ieee80211_txrx_result
-ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx);
-ieee80211_txrx_result
-ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx);
-
-ieee80211_txrx_result
-ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx);
-ieee80211_txrx_result
-ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx);
-
-#endif /* WPA_H */
--- /dev/null
+config MAC80211
+ tristate "Generic IEEE 802.11 Networking Stack (mac80211)"
+ depends on EXPERIMENTAL
+ select CRYPTO
+ select CRYPTO_ECB
+ select CRYPTO_ARC4
+ select CRYPTO_AES
+ select CRC32
+ select WIRELESS_EXT
+ select CFG80211
+ select NET_SCH_FIFO
+ ---help---
+ This option enables the hardware independent IEEE 802.11
+ networking stack.
+
+config MAC80211_LEDS
+ bool "Enable LED triggers"
+ depends on MAC80211 && LEDS_TRIGGERS
+ ---help---
+ This option enables a few LED triggers for different
+ packet receive/transmit events.
+
+config MAC80211_DEBUGFS
+ bool "Export mac80211 internals in DebugFS"
+ depends on MAC80211 && DEBUG_FS
+ ---help---
+ Select this to see extensive information about
+ the internal state of mac80211 in debugfs.
+
+ Say N unless you know you need this.
+
+config MAC80211_DEBUG
+ bool "Enable debugging output"
+ depends on MAC80211
+ ---help---
+ This option will enable debug tracing output for the
+ ieee80211 network stack.
+
+ If you are not trying to debug or develop the ieee80211
+ subsystem, you most likely want to say N here.
+
+config MAC80211_VERBOSE_DEBUG
+ bool "Verbose debugging output"
+ depends on MAC80211_DEBUG
+
+config MAC80211_LOWTX_FRAME_DUMP
+ bool "Debug frame dumping"
+ depends on MAC80211_DEBUG
+ ---help---
+ Selecting this option will cause the stack to
+ print a message for each frame that is handed
+ to the lowlevel driver for transmission. This
+ message includes all MAC addresses and the
+ frame control field.
+
+ If unsure, say N and insert the debugging code
+ you require into the driver you are debugging.
+
+config TKIP_DEBUG
+ bool "TKIP debugging"
+ depends on MAC80211_DEBUG
+
+config MAC80211_DEBUG_COUNTERS
+ bool "Extra statistics for TX/RX debugging"
+ depends on MAC80211_DEBUG
+
+config MAC80211_IBSS_DEBUG
+ bool "Support for IBSS testing"
+ depends on MAC80211_DEBUG
+ ---help---
+ Say Y here if you intend to debug the IBSS code.
+
+config MAC80211_VERBOSE_PS_DEBUG
+ bool "Verbose powersave mode debugging"
+ depends on MAC80211_DEBUG
+ ---help---
+ Say Y here to print out verbose powersave
+ mode debug messages.
--- /dev/null
+obj-$(CONFIG_MAC80211) += mac80211.o rc80211_simple.o
+
+mac80211-objs-$(CONFIG_MAC80211_LEDS) += ieee80211_led.o
+mac80211-objs-$(CONFIG_MAC80211_DEBUGFS) += debugfs.o debugfs_sta.o debugfs_netdev.o debugfs_key.o
+mac80211-objs-$(CONFIG_NET_SCHED) += wme.o
+
+mac80211-objs := \
+ ieee80211.o \
+ ieee80211_ioctl.o \
+ sta_info.o \
+ wep.o \
+ wpa.o \
+ ieee80211_sta.o \
+ ieee80211_iface.o \
+ ieee80211_rate.o \
+ michael.o \
+ regdomain.o \
+ tkip.o \
+ aes_ccm.o \
+ cfg.o \
+ rx.o \
+ tx.o \
+ key.o \
+ util.o \
+ event.o \
+ $(mac80211-objs-y)
--- /dev/null
+/*
+ * Copyright 2003-2004, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <asm/scatterlist.h>
+
+#include <net/mac80211.h>
+#include "ieee80211_key.h"
+#include "aes_ccm.h"
+
+
+static void ieee80211_aes_encrypt(struct crypto_cipher *tfm,
+ const u8 pt[16], u8 ct[16])
+{
+ crypto_cipher_encrypt_one(tfm, ct, pt);
+}
+
+
+static inline void aes_ccm_prepare(struct crypto_cipher *tfm, u8 *b_0, u8 *aad,
+ u8 *b, u8 *s_0, u8 *a)
+{
+ int i;
+
+ ieee80211_aes_encrypt(tfm, b_0, b);
+
+ /* Extra Authenticate-only data (always two AES blocks) */
+ for (i = 0; i < AES_BLOCK_LEN; i++)
+ aad[i] ^= b[i];
+ ieee80211_aes_encrypt(tfm, aad, b);
+
+ aad += AES_BLOCK_LEN;
+
+ for (i = 0; i < AES_BLOCK_LEN; i++)
+ aad[i] ^= b[i];
+ ieee80211_aes_encrypt(tfm, aad, a);
+
+ /* Mask out bits from auth-only-b_0 */
+ b_0[0] &= 0x07;
+
+ /* S_0 is used to encrypt T (= MIC) */
+ b_0[14] = 0;
+ b_0[15] = 0;
+ ieee80211_aes_encrypt(tfm, b_0, s_0);
+}
+
+
+void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
+ u8 *b_0, u8 *aad, u8 *data, size_t data_len,
+ u8 *cdata, u8 *mic)
+{
+ int i, j, last_len, num_blocks;
+ u8 *pos, *cpos, *b, *s_0, *e;
+
+ b = scratch;
+ s_0 = scratch + AES_BLOCK_LEN;
+ e = scratch + 2 * AES_BLOCK_LEN;
+
+ num_blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
+ last_len = data_len % AES_BLOCK_LEN;
+ aes_ccm_prepare(tfm, b_0, aad, b, s_0, b);
+
+ /* Process payload blocks */
+ pos = data;
+ cpos = cdata;
+ for (j = 1; j <= num_blocks; j++) {
+ int blen = (j == num_blocks && last_len) ?
+ last_len : AES_BLOCK_LEN;
+
+ /* Authentication followed by encryption */
+ for (i = 0; i < blen; i++)
+ b[i] ^= pos[i];
+ ieee80211_aes_encrypt(tfm, b, b);
+
+ b_0[14] = (j >> 8) & 0xff;
+ b_0[15] = j & 0xff;
+ ieee80211_aes_encrypt(tfm, b_0, e);
+ for (i = 0; i < blen; i++)
+ *cpos++ = *pos++ ^ e[i];
+ }
+
+ for (i = 0; i < CCMP_MIC_LEN; i++)
+ mic[i] = b[i] ^ s_0[i];
+}
+
+
+int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
+ u8 *b_0, u8 *aad, u8 *cdata, size_t data_len,
+ u8 *mic, u8 *data)
+{
+ int i, j, last_len, num_blocks;
+ u8 *pos, *cpos, *b, *s_0, *a;
+
+ b = scratch;
+ s_0 = scratch + AES_BLOCK_LEN;
+ a = scratch + 2 * AES_BLOCK_LEN;
+
+ num_blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
+ last_len = data_len % AES_BLOCK_LEN;
+ aes_ccm_prepare(tfm, b_0, aad, b, s_0, a);
+
+ /* Process payload blocks */
+ cpos = cdata;
+ pos = data;
+ for (j = 1; j <= num_blocks; j++) {
+ int blen = (j == num_blocks && last_len) ?
+ last_len : AES_BLOCK_LEN;
+
+ /* Decryption followed by authentication */
+ b_0[14] = (j >> 8) & 0xff;
+ b_0[15] = j & 0xff;
+ ieee80211_aes_encrypt(tfm, b_0, b);
+ for (i = 0; i < blen; i++) {
+ *pos = *cpos++ ^ b[i];
+ a[i] ^= *pos++;
+ }
+
+ ieee80211_aes_encrypt(tfm, a, a);
+ }
+
+ for (i = 0; i < CCMP_MIC_LEN; i++) {
+ if ((mic[i] ^ s_0[i]) != a[i])
+ return -1;
+ }
+
+ return 0;
+}
+
+
+struct crypto_cipher * ieee80211_aes_key_setup_encrypt(const u8 key[])
+{
+ struct crypto_cipher *tfm;
+
+ tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
+ if (IS_ERR(tfm))
+ return NULL;
+
+ crypto_cipher_setkey(tfm, key, ALG_CCMP_KEY_LEN);
+
+ return tfm;
+}
+
+
+void ieee80211_aes_key_free(struct crypto_cipher *tfm)
+{
+ if (tfm)
+ crypto_free_cipher(tfm);
+}
--- /dev/null
+/*
+ * Copyright 2003-2004, Instant802 Networks, Inc.
+ * Copyright 2006, Devicescape Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef AES_CCM_H
+#define AES_CCM_H
+
+#include <linux/crypto.h>
+
+#define AES_BLOCK_LEN 16
+
+struct crypto_cipher * ieee80211_aes_key_setup_encrypt(const u8 key[]);
+void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
+ u8 *b_0, u8 *aad, u8 *data, size_t data_len,
+ u8 *cdata, u8 *mic);
+int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
+ u8 *b_0, u8 *aad, u8 *cdata, size_t data_len,
+ u8 *mic, u8 *data);
+void ieee80211_aes_key_free(struct crypto_cipher *tfm);
+
+#endif /* AES_CCM_H */
--- /dev/null
+/*
+ * mac80211 configuration hooks for cfg80211
+ *
+ * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This file is GPLv2 as found in COPYING.
+ */
+
+#include <linux/nl80211.h>
+#include <linux/rtnetlink.h>
+#include <net/cfg80211.h>
+#include "ieee80211_i.h"
+#include "cfg.h"
+
+static enum ieee80211_if_types
+nl80211_type_to_mac80211_type(enum nl80211_iftype type)
+{
+ switch (type) {
+ case NL80211_IFTYPE_UNSPECIFIED:
+ return IEEE80211_IF_TYPE_STA;
+ case NL80211_IFTYPE_ADHOC:
+ return IEEE80211_IF_TYPE_IBSS;
+ case NL80211_IFTYPE_STATION:
+ return IEEE80211_IF_TYPE_STA;
+ case NL80211_IFTYPE_MONITOR:
+ return IEEE80211_IF_TYPE_MNTR;
+ default:
+ return IEEE80211_IF_TYPE_INVALID;
+ }
+}
+
+static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
+ enum nl80211_iftype type)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+ enum ieee80211_if_types itype;
+
+ if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
+ return -ENODEV;
+
+ itype = nl80211_type_to_mac80211_type(type);
+ if (itype == IEEE80211_IF_TYPE_INVALID)
+ return -EINVAL;
+
+ return ieee80211_if_add(local->mdev, name, NULL, itype);
+}
+
+static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+ struct net_device *dev;
+ char *name;
+
+ if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
+ return -ENODEV;
+
+ /* we're under RTNL */
+ dev = __dev_get_by_index(ifindex);
+ if (!dev)
+ return 0;
+
+ name = dev->name;
+
+ return ieee80211_if_remove(local->mdev, name, -1);
+}
+
+static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
+ enum nl80211_iftype type)
+{
+ struct ieee80211_local *local = wiphy_priv(wiphy);
+ struct net_device *dev;
+ enum ieee80211_if_types itype;
+ struct ieee80211_sub_if_data *sdata;
+
+ if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
+ return -ENODEV;
+
+ /* we're under RTNL */
+ dev = __dev_get_by_index(ifindex);
+ if (!dev)
+ return -ENODEV;
+
+ if (netif_running(dev))
+ return -EBUSY;
+
+ itype = nl80211_type_to_mac80211_type(type);
+ if (itype == IEEE80211_IF_TYPE_INVALID)
+ return -EINVAL;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ if (sdata->type == IEEE80211_IF_TYPE_VLAN)
+ return -EOPNOTSUPP;
+
+ ieee80211_if_reinit(dev);
+ ieee80211_if_set_type(dev, itype);
+
+ return 0;
+}
+
+struct cfg80211_ops mac80211_config_ops = {
+ .add_virtual_intf = ieee80211_add_iface,
+ .del_virtual_intf = ieee80211_del_iface,
+ .change_virtual_intf = ieee80211_change_iface,
+};
--- /dev/null
+/*
+ * mac80211 configuration hooks for cfg80211
+ */
+#ifndef __CFG_H
+#define __CFG_H
+
+extern struct cfg80211_ops mac80211_config_ops;
+
+#endif /* __CFG_H */
--- /dev/null
+/*
+ * mac80211 debugfs for wireless PHYs
+ *
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * GPLv2
+ *
+ */
+
+#include <linux/debugfs.h>
+#include <linux/rtnetlink.h>
+#include "ieee80211_i.h"
+#include "ieee80211_rate.h"
+#include "debugfs.h"
+
+int mac80211_open_file_generic(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+static const char *ieee80211_mode_str(int mode)
+{
+ switch (mode) {
+ case MODE_IEEE80211A:
+ return "IEEE 802.11a";
+ case MODE_IEEE80211B:
+ return "IEEE 802.11b";
+ case MODE_IEEE80211G:
+ return "IEEE 802.11g";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+static ssize_t modes_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ struct ieee80211_hw_mode *mode;
+ char buf[150], *p = buf;
+
+ /* FIXME: locking! */
+ list_for_each_entry(mode, &local->modes_list, list) {
+ p += scnprintf(p, sizeof(buf)+buf-p,
+ "%s\n", ieee80211_mode_str(mode->mode));
+ }
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
+}
+
+static const struct file_operations modes_ops = {
+ .read = modes_read,
+ .open = mac80211_open_file_generic,
+};
+
+#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
+static ssize_t name## _read(struct file *file, char __user *userbuf, \
+ size_t count, loff_t *ppos) \
+{ \
+ struct ieee80211_local *local = file->private_data; \
+ char buf[buflen]; \
+ int res; \
+ \
+ res = scnprintf(buf, buflen, fmt "\n", ##value); \
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
+} \
+ \
+static const struct file_operations name## _ops = { \
+ .read = name## _read, \
+ .open = mac80211_open_file_generic, \
+};
+
+#define DEBUGFS_ADD(name) \
+ local->debugfs.name = debugfs_create_file(#name, 0444, phyd, \
+ local, &name## _ops);
+
+#define DEBUGFS_DEL(name) \
+ debugfs_remove(local->debugfs.name); \
+ local->debugfs.name = NULL;
+
+
+DEBUGFS_READONLY_FILE(channel, 20, "%d",
+ local->hw.conf.channel);
+DEBUGFS_READONLY_FILE(frequency, 20, "%d",
+ local->hw.conf.freq);
+DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d",
+ local->hw.conf.antenna_sel_tx);
+DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d",
+ local->hw.conf.antenna_sel_rx);
+DEBUGFS_READONLY_FILE(bridge_packets, 20, "%d",
+ local->bridge_packets);
+DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
+ local->rts_threshold);
+DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
+ local->fragmentation_threshold);
+DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
+ local->short_retry_limit);
+DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
+ local->long_retry_limit);
+DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
+ local->total_ps_buffered);
+DEBUGFS_READONLY_FILE(mode, 20, "%s",
+ ieee80211_mode_str(local->hw.conf.phymode));
+DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x",
+ local->wep_iv & 0xffffff);
+DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
+ local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");
+
+/* statistics stuff */
+
+static inline int rtnl_lock_local(struct ieee80211_local *local)
+{
+ rtnl_lock();
+ if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) {
+ rtnl_unlock();
+ return -ENODEV;
+ }
+ return 0;
+}
+
+#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \
+ DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)
+
+static ssize_t format_devstat_counter(struct ieee80211_local *local,
+ char __user *userbuf,
+ size_t count, loff_t *ppos,
+ int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
+ int buflen))
+{
+ struct ieee80211_low_level_stats stats;
+ char buf[20];
+ int res;
+
+ if (!local->ops->get_stats)
+ return -EOPNOTSUPP;
+
+ res = rtnl_lock_local(local);
+ if (res)
+ return res;
+
+ res = local->ops->get_stats(local_to_hw(local), &stats);
+ rtnl_unlock();
+ if (!res)
+ res = printvalue(&stats, buf, sizeof(buf));
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+
+#define DEBUGFS_DEVSTATS_FILE(name) \
+static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
+ char *buf, int buflen) \
+{ \
+ return scnprintf(buf, buflen, "%u\n", stats->name); \
+} \
+static ssize_t stats_ ##name## _read(struct file *file, \
+ char __user *userbuf, \
+ size_t count, loff_t *ppos) \
+{ \
+ return format_devstat_counter(file->private_data, \
+ userbuf, \
+ count, \
+ ppos, \
+ print_devstats_##name); \
+} \
+ \
+static const struct file_operations stats_ ##name## _ops = { \
+ .read = stats_ ##name## _read, \
+ .open = mac80211_open_file_generic, \
+};
+
+#define DEBUGFS_STATS_ADD(name) \
+ local->debugfs.stats.name = debugfs_create_file(#name, 0444, statsd,\
+ local, &stats_ ##name## _ops);
+
+#define DEBUGFS_STATS_DEL(name) \
+ debugfs_remove(local->debugfs.stats.name); \
+ local->debugfs.stats.name = NULL;
+
+DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u",
+ local->dot11TransmittedFragmentCount);
+DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u",
+ local->dot11MulticastTransmittedFrameCount);
+DEBUGFS_STATS_FILE(failed_count, 20, "%u",
+ local->dot11FailedCount);
+DEBUGFS_STATS_FILE(retry_count, 20, "%u",
+ local->dot11RetryCount);
+DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u",
+ local->dot11MultipleRetryCount);
+DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u",
+ local->dot11FrameDuplicateCount);
+DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u",
+ local->dot11ReceivedFragmentCount);
+DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u",
+ local->dot11MulticastReceivedFrameCount);
+DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u",
+ local->dot11TransmittedFrameCount);
+DEBUGFS_STATS_FILE(wep_undecryptable_count, 20, "%u",
+ local->dot11WEPUndecryptableCount);
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u",
+ local->tx_handlers_drop);
+DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u",
+ local->tx_handlers_queued);
+DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u",
+ local->tx_handlers_drop_unencrypted);
+DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u",
+ local->tx_handlers_drop_fragment);
+DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u",
+ local->tx_handlers_drop_wep);
+DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u",
+ local->tx_handlers_drop_not_assoc);
+DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u",
+ local->tx_handlers_drop_unauth_port);
+DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u",
+ local->rx_handlers_drop);
+DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u",
+ local->rx_handlers_queued);
+DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u",
+ local->rx_handlers_drop_nullfunc);
+DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u",
+ local->rx_handlers_drop_defrag);
+DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u",
+ local->rx_handlers_drop_short);
+DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u",
+ local->rx_handlers_drop_passive_scan);
+DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u",
+ local->tx_expand_skb_head);
+DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u",
+ local->tx_expand_skb_head_cloned);
+DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u",
+ local->rx_expand_skb_head);
+DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u",
+ local->rx_expand_skb_head2);
+DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u",
+ local->rx_handlers_fragments);
+DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u",
+ local->tx_status_drop);
+
+static ssize_t stats_wme_rx_queue_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ char buf[NUM_RX_DATA_QUEUES*15], *p = buf;
+ int i;
+
+ for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+ p += scnprintf(p, sizeof(buf)+buf-p,
+ "%u\n", local->wme_rx_queue[i]);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
+}
+
+static const struct file_operations stats_wme_rx_queue_ops = {
+ .read = stats_wme_rx_queue_read,
+ .open = mac80211_open_file_generic,
+};
+
+static ssize_t stats_wme_tx_queue_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_local *local = file->private_data;
+ char buf[NUM_TX_DATA_QUEUES*15], *p = buf;
+ int i;
+
+ for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
+ p += scnprintf(p, sizeof(buf)+buf-p,
+ "%u\n", local->wme_tx_queue[i]);
+
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
+}
+
+static const struct file_operations stats_wme_tx_queue_ops = {
+ .read = stats_wme_tx_queue_read,
+ .open = mac80211_open_file_generic,
+};
+#endif
+
+DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
+DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
+DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
+DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
+
+
+void debugfs_hw_add(struct ieee80211_local *local)
+{
+ struct dentry *phyd = local->hw.wiphy->debugfsdir;
+ struct dentry *statsd;
+
+ if (!phyd)
+ return;
+
+ local->debugfs.stations = debugfs_create_dir("stations", phyd);
+ local->debugfs.keys = debugfs_create_dir("keys", phyd);
+
+ DEBUGFS_ADD(channel);
+ DEBUGFS_ADD(frequency);
+ DEBUGFS_ADD(antenna_sel_tx);
+ DEBUGFS_ADD(antenna_sel_rx);
+ DEBUGFS_ADD(bridge_packets);
+ DEBUGFS_ADD(rts_threshold);
+ DEBUGFS_ADD(fragmentation_threshold);
+ DEBUGFS_ADD(short_retry_limit);
+ DEBUGFS_ADD(long_retry_limit);
+ DEBUGFS_ADD(total_ps_buffered);
+ DEBUGFS_ADD(mode);
+ DEBUGFS_ADD(wep_iv);
+ DEBUGFS_ADD(modes);
+
+ statsd = debugfs_create_dir("statistics", phyd);
+ local->debugfs.statistics = statsd;
+
+ /* if the dir failed, don't put all the other things into the root! */
+ if (!statsd)
+ return;
+
+ DEBUGFS_STATS_ADD(transmitted_fragment_count);
+ DEBUGFS_STATS_ADD(multicast_transmitted_frame_count);
+ DEBUGFS_STATS_ADD(failed_count);
+ DEBUGFS_STATS_ADD(retry_count);
+ DEBUGFS_STATS_ADD(multiple_retry_count);
+ DEBUGFS_STATS_ADD(frame_duplicate_count);
+ DEBUGFS_STATS_ADD(received_fragment_count);
+ DEBUGFS_STATS_ADD(multicast_received_frame_count);
+ DEBUGFS_STATS_ADD(transmitted_frame_count);
+ DEBUGFS_STATS_ADD(wep_undecryptable_count);
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ DEBUGFS_STATS_ADD(tx_handlers_drop);
+ DEBUGFS_STATS_ADD(tx_handlers_queued);
+ DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted);
+ DEBUGFS_STATS_ADD(tx_handlers_drop_fragment);
+ DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
+ DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
+ DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
+ DEBUGFS_STATS_ADD(rx_handlers_drop);
+ DEBUGFS_STATS_ADD(rx_handlers_queued);
+ DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
+ DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
+ DEBUGFS_STATS_ADD(rx_handlers_drop_short);
+ DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan);
+ DEBUGFS_STATS_ADD(tx_expand_skb_head);
+ DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
+ DEBUGFS_STATS_ADD(rx_expand_skb_head);
+ DEBUGFS_STATS_ADD(rx_expand_skb_head2);
+ DEBUGFS_STATS_ADD(rx_handlers_fragments);
+ DEBUGFS_STATS_ADD(tx_status_drop);
+ DEBUGFS_STATS_ADD(wme_tx_queue);
+ DEBUGFS_STATS_ADD(wme_rx_queue);
+#endif
+ DEBUGFS_STATS_ADD(dot11ACKFailureCount);
+ DEBUGFS_STATS_ADD(dot11RTSFailureCount);
+ DEBUGFS_STATS_ADD(dot11FCSErrorCount);
+ DEBUGFS_STATS_ADD(dot11RTSSuccessCount);
+}
+
+void debugfs_hw_del(struct ieee80211_local *local)
+{
+ DEBUGFS_DEL(channel);
+ DEBUGFS_DEL(frequency);
+ DEBUGFS_DEL(antenna_sel_tx);
+ DEBUGFS_DEL(antenna_sel_rx);
+ DEBUGFS_DEL(bridge_packets);
+ DEBUGFS_DEL(rts_threshold);
+ DEBUGFS_DEL(fragmentation_threshold);
+ DEBUGFS_DEL(short_retry_limit);
+ DEBUGFS_DEL(long_retry_limit);
+ DEBUGFS_DEL(total_ps_buffered);
+ DEBUGFS_DEL(mode);
+ DEBUGFS_DEL(wep_iv);
+ DEBUGFS_DEL(modes);
+
+ DEBUGFS_STATS_DEL(transmitted_fragment_count);
+ DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);
+ DEBUGFS_STATS_DEL(failed_count);
+ DEBUGFS_STATS_DEL(retry_count);
+ DEBUGFS_STATS_DEL(multiple_retry_count);
+ DEBUGFS_STATS_DEL(frame_duplicate_count);
+ DEBUGFS_STATS_DEL(received_fragment_count);
+ DEBUGFS_STATS_DEL(multicast_received_frame_count);
+ DEBUGFS_STATS_DEL(transmitted_frame_count);
+ DEBUGFS_STATS_DEL(wep_undecryptable_count);
+ DEBUGFS_STATS_DEL(num_scans);
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ DEBUGFS_STATS_DEL(tx_handlers_drop);
+ DEBUGFS_STATS_DEL(tx_handlers_queued);
+ DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted);
+ DEBUGFS_STATS_DEL(tx_handlers_drop_fragment);
+ DEBUGFS_STATS_DEL(tx_handlers_drop_wep);
+ DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc);
+ DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port);
+ DEBUGFS_STATS_DEL(rx_handlers_drop);
+ DEBUGFS_STATS_DEL(rx_handlers_queued);
+ DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc);
+ DEBUGFS_STATS_DEL(rx_handlers_drop_defrag);
+ DEBUGFS_STATS_DEL(rx_handlers_drop_short);
+ DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan);
+ DEBUGFS_STATS_DEL(tx_expand_skb_head);
+ DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned);
+ DEBUGFS_STATS_DEL(rx_expand_skb_head);
+ DEBUGFS_STATS_DEL(rx_expand_skb_head2);
+ DEBUGFS_STATS_DEL(rx_handlers_fragments);
+ DEBUGFS_STATS_DEL(tx_status_drop);
+ DEBUGFS_STATS_DEL(wme_tx_queue);
+ DEBUGFS_STATS_DEL(wme_rx_queue);
+#endif
+ DEBUGFS_STATS_DEL(dot11ACKFailureCount);
+ DEBUGFS_STATS_DEL(dot11RTSFailureCount);
+ DEBUGFS_STATS_DEL(dot11FCSErrorCount);
+ DEBUGFS_STATS_DEL(dot11RTSSuccessCount);
+
+ debugfs_remove(local->debugfs.statistics);
+ local->debugfs.statistics = NULL;
+ debugfs_remove(local->debugfs.stations);
+ local->debugfs.stations = NULL;
+ debugfs_remove(local->debugfs.keys);
+ local->debugfs.keys = NULL;
+}
--- /dev/null
+#ifndef __MAC80211_DEBUGFS_H
+#define __MAC80211_DEBUGFS_H
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+extern void debugfs_hw_add(struct ieee80211_local *local);
+extern void debugfs_hw_del(struct ieee80211_local *local);
+extern int mac80211_open_file_generic(struct inode *inode, struct file *file);
+#else
+static inline void debugfs_hw_add(struct ieee80211_local *local)
+{
+ return;
+}
+static inline void debugfs_hw_del(struct ieee80211_local *local) {}
+#endif
+
+#endif /* __MAC80211_DEBUGFS_H */
--- /dev/null
+/*
+ * Copyright 2003-2005 Devicescape Software, Inc.
+ * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kobject.h>
+#include "ieee80211_i.h"
+#include "ieee80211_key.h"
+#include "debugfs.h"
+#include "debugfs_key.h"
+
+#define KEY_READ(name, prop, buflen, format_string) \
+static ssize_t key_##name##_read(struct file *file, \
+ char __user *userbuf, \
+ size_t count, loff_t *ppos) \
+{ \
+ char buf[buflen]; \
+ struct ieee80211_key *key = file->private_data; \
+ int res = scnprintf(buf, buflen, format_string, key->prop); \
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
+}
+#define KEY_READ_D(name) KEY_READ(name, name, 20, "%d\n")
+#define KEY_READ_X(name) KEY_READ(name, name, 20, "0x%x\n")
+
+#define KEY_OPS(name) \
+static const struct file_operations key_ ##name## _ops = { \
+ .read = key_##name##_read, \
+ .open = mac80211_open_file_generic, \
+}
+
+#define KEY_FILE(name, format) \
+ KEY_READ_##format(name) \
+ KEY_OPS(name)
+
+#define KEY_CONF_READ(name, buflen, format_string) \
+ KEY_READ(conf_##name, conf.name, buflen, format_string)
+#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, 20, "%d\n")
+
+#define KEY_CONF_OPS(name) \
+static const struct file_operations key_ ##name## _ops = { \
+ .read = key_conf_##name##_read, \
+ .open = mac80211_open_file_generic, \
+}
+
+#define KEY_CONF_FILE(name, format) \
+ KEY_CONF_READ_##format(name) \
+ KEY_CONF_OPS(name)
+
+KEY_CONF_FILE(keylen, D);
+KEY_CONF_FILE(keyidx, D);
+KEY_CONF_FILE(hw_key_idx, D);
+KEY_FILE(flags, X);
+KEY_FILE(tx_rx_count, D);
+KEY_READ(ifindex, sdata->dev->ifindex, 20, "%d\n");
+KEY_OPS(ifindex);
+
+static ssize_t key_algorithm_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char *alg;
+ struct ieee80211_key *key = file->private_data;
+
+ switch (key->conf.alg) {
+ case ALG_WEP:
+ alg = "WEP\n";
+ break;
+ case ALG_TKIP:
+ alg = "TKIP\n";
+ break;
+ case ALG_CCMP:
+ alg = "CCMP\n";
+ break;
+ default:
+ return 0;
+ }
+ return simple_read_from_buffer(userbuf, count, ppos, alg, strlen(alg));
+}
+KEY_OPS(algorithm);
+
+static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ const u8 *tpn;
+ char buf[20];
+ int len;
+ struct ieee80211_key *key = file->private_data;
+
+ switch (key->conf.alg) {
+ case ALG_WEP:
+ len = scnprintf(buf, sizeof(buf), "\n");
+ break;
+ case ALG_TKIP:
+ len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
+ key->u.tkip.iv32,
+ key->u.tkip.iv16);
+ break;
+ case ALG_CCMP:
+ tpn = key->u.ccmp.tx_pn;
+ len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
+ tpn[0], tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
+ break;
+ default:
+ return 0;
+ }
+ return simple_read_from_buffer(userbuf, count, ppos, buf, len);
+}
+KEY_OPS(tx_spec);
+
+static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_key *key = file->private_data;
+ char buf[14*NUM_RX_DATA_QUEUES+1], *p = buf;
+ int i, len;
+ const u8 *rpn;
+
+ switch (key->conf.alg) {
+ case ALG_WEP:
+ len = scnprintf(buf, sizeof(buf), "\n");
+ break;
+ case ALG_TKIP:
+ for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+ p += scnprintf(p, sizeof(buf)+buf-p,
+ "%08x %04x\n",
+ key->u.tkip.iv32_rx[i],
+ key->u.tkip.iv16_rx[i]);
+ len = p - buf;
+ break;
+ case ALG_CCMP:
+ for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
+ rpn = key->u.ccmp.rx_pn[i];
+ p += scnprintf(p, sizeof(buf)+buf-p,
+ "%02x%02x%02x%02x%02x%02x\n",
+ rpn[0], rpn[1], rpn[2],
+ rpn[3], rpn[4], rpn[5]);
+ }
+ len = p - buf;
+ break;
+ default:
+ return 0;
+ }
+ return simple_read_from_buffer(userbuf, count, ppos, buf, len);
+}
+KEY_OPS(rx_spec);
+
+static ssize_t key_replays_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_key *key = file->private_data;
+ char buf[20];
+ int len;
+
+ if (key->conf.alg != ALG_CCMP)
+ return 0;
+ len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, len);
+}
+KEY_OPS(replays);
+
+static ssize_t key_key_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct ieee80211_key *key = file->private_data;
+ int i, res, bufsize = 2 * key->conf.keylen + 2;
+ char *buf = kmalloc(bufsize, GFP_KERNEL);
+ char *p = buf;
+
+ for (i = 0; i < key->conf.keylen; i++)
+ p += scnprintf(p, bufsize + buf - p, "%02x", key->conf.key[i]);
+ p += scnprintf(p, bufsize+buf-p, "\n");
+ res = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
+ kfree(buf);
+ return res;
+}
+KEY_OPS(key);
+
+#define DEBUGFS_ADD(name) \
+ key->debugfs.name = debugfs_create_file(#name, 0400,\
+ key->debugfs.dir, key, &key_##name##_ops);
+
+void ieee80211_debugfs_key_add(struct ieee80211_local *local,
+ struct ieee80211_key *key)
+{
+ static int keycount;
+ char buf[20];
+
+ if (!local->debugfs.keys)
+ return;
+
+ sprintf(buf, "%d", keycount);
+ keycount++;
+ key->debugfs.dir = debugfs_create_dir(buf,
+ local->debugfs.keys);
+
+ if (!key->debugfs.dir)
+ return;
+
+ DEBUGFS_ADD(keylen);
+ DEBUGFS_ADD(flags);
+ DEBUGFS_ADD(keyidx);
+ DEBUGFS_ADD(hw_key_idx);
+ DEBUGFS_ADD(tx_rx_count);
+ DEBUGFS_ADD(algorithm);
+ DEBUGFS_ADD(tx_spec);
+ DEBUGFS_ADD(rx_spec);
+ DEBUGFS_ADD(replays);
+ DEBUGFS_ADD(key);
+ DEBUGFS_ADD(ifindex);
+};
+
+#define DEBUGFS_DEL(name) \
+ debugfs_remove(key->debugfs.name); key->debugfs.name = NULL;
+
+void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
+{
+ if (!key)
+ return;
+
+ DEBUGFS_DEL(keylen);
+ DEBUGFS_DEL(flags);
+ DEBUGFS_DEL(keyidx);
+ DEBUGFS_DEL(hw_key_idx);
+ DEBUGFS_DEL(tx_rx_count);
+ DEBUGFS_DEL(algorithm);
+ DEBUGFS_DEL(tx_spec);
+ DEBUGFS_DEL(rx_spec);
+ DEBUGFS_DEL(replays);
+ DEBUGFS_DEL(key);
+ DEBUGFS_DEL(ifindex);
+
+ debugfs_remove(key->debugfs.stalink);
+ key->debugfs.stalink = NULL;
+ debugfs_remove(key->debugfs.dir);
+ key->debugfs.dir = NULL;
+}
+void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata)
+{
+ char buf[50];
+
+ if (!sdata->debugfsdir)
+ return;
+
+ sprintf(buf, "../keys/%d", sdata->default_key->conf.keyidx);
+ sdata->debugfs.default_key =
+ debugfs_create_symlink("default_key", sdata->debugfsdir, buf);
+}
+void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata)
+{
+ if (!sdata)
+ return;
+
+ debugfs_remove(sdata->debugfs.default_key);
+ sdata->debugfs.default_key = NULL;
+}
+void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key,
+ struct sta_info *sta)
+{
+ char buf[50];
+
+ if (!key->debugfs.dir)
+ return;
+
+ sprintf(buf, "../../stations/" MAC_FMT, MAC_ARG(sta->addr));
+ key->debugfs.stalink =
+ debugfs_create_symlink("station", key->debugfs.dir, buf);
+}
+
+void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
+ struct sta_info *sta)
+{
+ debugfs_remove(key->debugfs.stalink);
+ key->debugfs.stalink = NULL;
+}
--- /dev/null
+#ifndef __MAC80211_DEBUGFS_KEY_H
+#define __MAC80211_DEBUGFS_KEY_H
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+void ieee80211_debugfs_key_add(struct ieee80211_local *local,
+ struct ieee80211_key *key);
+void ieee80211_debugfs_key_remove(struct ieee80211_key *key);
+void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata);
+void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata);
+void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key,
+ struct sta_info *sta);
+void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
+ struct sta_info *sta);
+#else
+static inline void ieee80211_debugfs_key_add(struct ieee80211_local *local,
+ struct ieee80211_key *key)
+{}
+static inline void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
+{}
+static inline void ieee80211_debugfs_key_add_default(
+ struct ieee80211_sub_if_data *sdata)
+{}
+static inline void ieee80211_debugfs_key_remove_default(
+ struct ieee80211_sub_if_data *sdata)
+{}
+static inline void ieee80211_debugfs_key_sta_link(
+ struct ieee80211_key *key, struct sta_info *sta)
+{}
+static inline void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
+ struct sta_info *sta)
+{}
+#endif
+
+#endif /* __MAC80211_DEBUGFS_KEY_H */
--- /dev/null
+/*
+ * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/if.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/rtnetlink.h>
+#include <linux/notifier.h>
+#include <net/mac80211.h>
+#include <net/cfg80211.h>
+#include "ieee80211_i.h"
+#include "ieee80211_rate.h"
+#include "debugfs.h"
+#include "debugfs_netdev.h"
+
+static ssize_t ieee80211_if_read(
+ struct ieee80211_sub_if_data *sdata,
+ char __user *userbuf,
+ size_t count, loff_t *ppos,
+ ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int))
+{
+ char buf[70];
+ ssize_t ret = -EINVAL;
+
+ read_lock(&dev_base_lock);
+ if (sdata->dev->reg_state == NETREG_REGISTERED) {
+ ret = (*format)(sdata, buf, sizeof(buf));
+ ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+ }
+ read_unlock(&dev_base_lock);
+ return ret;
+}
+
+#define IEEE80211_IF_FMT(name, field, format_string) \
+static ssize_t ieee80211_if_fmt_##name( \
+ const struct ieee80211_sub_if_data *sdata, char *buf, \
+ int buflen) \
+{ \
+ return scnprintf(buf, buflen, format_string, sdata->field); \
+}
+#define IEEE80211_IF_FMT_DEC(name, field) \
+ IEEE80211_IF_FMT(name, field, "%d\n")
+#define IEEE80211_IF_FMT_HEX(name, field) \
+ IEEE80211_IF_FMT(name, field, "%#x\n")
+#define IEEE80211_IF_FMT_SIZE(name, field) \
+ IEEE80211_IF_FMT(name, field, "%zd\n")
+
+#define IEEE80211_IF_FMT_ATOMIC(name, field) \
+static ssize_t ieee80211_if_fmt_##name( \
+ const struct ieee80211_sub_if_data *sdata, \
+ char *buf, int buflen) \
+{ \
+ return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
+}
+
+#define IEEE80211_IF_FMT_MAC(name, field) \
+static ssize_t ieee80211_if_fmt_##name( \
+ const struct ieee80211_sub_if_data *sdata, char *buf, \
+ int buflen) \
+{ \
+ return scnprintf(buf, buflen, MAC_FMT "\n", MAC_ARG(sdata->field));\
+}
+
+#define __IEEE80211_IF_FILE(name) \
+static ssize_t ieee80211_if_read_##name(struct file *file, \
+ char __user *userbuf, \
+ size_t count, loff_t *ppos) \
+{ \
+ return ieee80211_if_read(file->private_data, \
+ userbuf, count, ppos, \
+ ieee80211_if_fmt_##name); \
+} \
+static const struct file_operations name##_ops = { \
+ .read = ieee80211_if_read_##name, \
+ .open = mac80211_open_file_generic, \
+}
+
+#define IEEE80211_IF_FILE(name, field, format) \
+ IEEE80211_IF_FMT_##format(name, field) \
+ __IEEE80211_IF_FILE(name)
+
+/* common attributes */
+IEEE80211_IF_FILE(channel_use, channel_use, DEC);
+IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
+IEEE80211_IF_FILE(eapol, eapol, DEC);
+IEEE80211_IF_FILE(ieee8021_x, ieee802_1x, DEC);
+
+/* STA/IBSS attributes */
+IEEE80211_IF_FILE(state, u.sta.state, DEC);
+IEEE80211_IF_FILE(bssid, u.sta.bssid, MAC);
+IEEE80211_IF_FILE(prev_bssid, u.sta.prev_bssid, MAC);
+IEEE80211_IF_FILE(ssid_len, u.sta.ssid_len, SIZE);
+IEEE80211_IF_FILE(aid, u.sta.aid, DEC);
+IEEE80211_IF_FILE(ap_capab, u.sta.ap_capab, HEX);
+IEEE80211_IF_FILE(capab, u.sta.capab, HEX);
+IEEE80211_IF_FILE(extra_ie_len, u.sta.extra_ie_len, SIZE);
+IEEE80211_IF_FILE(auth_tries, u.sta.auth_tries, DEC);
+IEEE80211_IF_FILE(assoc_tries, u.sta.assoc_tries, DEC);
+IEEE80211_IF_FILE(auth_algs, u.sta.auth_algs, HEX);
+IEEE80211_IF_FILE(auth_alg, u.sta.auth_alg, DEC);
+IEEE80211_IF_FILE(auth_transaction, u.sta.auth_transaction, DEC);
+
+static ssize_t ieee80211_if_fmt_flags(
+ const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
+{
+ return scnprintf(buf, buflen, "%s%s%s%s%s%s%s\n",
+ sdata->u.sta.flags & IEEE80211_STA_SSID_SET ? "SSID\n" : "",
+ sdata->u.sta.flags & IEEE80211_STA_BSSID_SET ? "BSSID\n" : "",
+ sdata->u.sta.flags & IEEE80211_STA_PREV_BSSID_SET ? "prev BSSID\n" : "",
+ sdata->u.sta.flags & IEEE80211_STA_AUTHENTICATED ? "AUTH\n" : "",
+ sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED ? "ASSOC\n" : "",
+ sdata->u.sta.flags & IEEE80211_STA_PROBEREQ_POLL ? "PROBEREQ POLL\n" : "",
+ sdata->flags & IEEE80211_SDATA_USE_PROTECTION ? "CTS prot\n" : "");
+}
+__IEEE80211_IF_FILE(flags);
+
+/* AP attributes */
+IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
+IEEE80211_IF_FILE(dtim_period, u.ap.dtim_period, DEC);
+IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
+IEEE80211_IF_FILE(num_beacons, u.ap.num_beacons, DEC);
+IEEE80211_IF_FILE(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC);
+IEEE80211_IF_FILE(max_ratectrl_rateidx, u.ap.max_ratectrl_rateidx, DEC);
+
+static ssize_t ieee80211_if_fmt_num_buffered_multicast(
+ const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
+{
+ return scnprintf(buf, buflen, "%u\n",
+ skb_queue_len(&sdata->u.ap.ps_bc_buf));
+}
+__IEEE80211_IF_FILE(num_buffered_multicast);
+
+static ssize_t ieee80211_if_fmt_beacon_head_len(
+ const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
+{
+ if (sdata->u.ap.beacon_head)
+ return scnprintf(buf, buflen, "%d\n",
+ sdata->u.ap.beacon_head_len);
+ return scnprintf(buf, buflen, "\n");
+}
+__IEEE80211_IF_FILE(beacon_head_len);
+
+static ssize_t ieee80211_if_fmt_beacon_tail_len(
+ const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
+{
+ if (sdata->u.ap.beacon_tail)
+ return scnprintf(buf, buflen, "%d\n",
+ sdata->u.ap.beacon_tail_len);
+ return scnprintf(buf, buflen, "\n");
+}
+__IEEE80211_IF_FILE(beacon_tail_len);
+
+/* WDS attributes */
+IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
+
+#define DEBUGFS_ADD(name, type)\
+ sdata->debugfs.type.name = debugfs_create_file(#name, 0444,\
+ sdata->debugfsdir, sdata, &name##_ops);
+
+static void add_sta_files(struct ieee80211_sub_if_data *sdata)
+{
+ DEBUGFS_ADD(channel_use, sta);
+ DEBUGFS_ADD(drop_unencrypted, sta);
+ DEBUGFS_ADD(eapol, sta);
+ DEBUGFS_ADD(ieee8021_x, sta);
+ DEBUGFS_ADD(state, sta);
+ DEBUGFS_ADD(bssid, sta);
+ DEBUGFS_ADD(prev_bssid, sta);
+ DEBUGFS_ADD(ssid_len, sta);
+ DEBUGFS_ADD(aid, sta);
+ DEBUGFS_ADD(ap_capab, sta);
+ DEBUGFS_ADD(capab, sta);
+ DEBUGFS_ADD(extra_ie_len, sta);
+ DEBUGFS_ADD(auth_tries, sta);
+ DEBUGFS_ADD(assoc_tries, sta);
+ DEBUGFS_ADD(auth_algs, sta);
+ DEBUGFS_ADD(auth_alg, sta);
+ DEBUGFS_ADD(auth_transaction, sta);
+ DEBUGFS_ADD(flags, sta);
+}
+
+static void add_ap_files(struct ieee80211_sub_if_data *sdata)
+{
+ DEBUGFS_ADD(channel_use, ap);
+ DEBUGFS_ADD(drop_unencrypted, ap);
+ DEBUGFS_ADD(eapol, ap);
+ DEBUGFS_ADD(ieee8021_x, ap);
+ DEBUGFS_ADD(num_sta_ps, ap);
+ DEBUGFS_ADD(dtim_period, ap);
+ DEBUGFS_ADD(dtim_count, ap);
+ DEBUGFS_ADD(num_beacons, ap);
+ DEBUGFS_ADD(force_unicast_rateidx, ap);
+ DEBUGFS_ADD(max_ratectrl_rateidx, ap);
+ DEBUGFS_ADD(num_buffered_multicast, ap);
+ DEBUGFS_ADD(beacon_head_len, ap);
+ DEBUGFS_ADD(beacon_tail_len, ap);
+}
+
+static void add_wds_files(struct ieee80211_sub_if_data *sdata)
+{
+ DEBUGFS_ADD(channel_use, wds);
+ DEBUGFS_ADD(drop_unencrypted, wds);
+ DEBUGFS_ADD(eapol, wds);
+ DEBUGFS_ADD(ieee8021_x, wds);
+ DEBUGFS_ADD(peer, wds);
+}
+
+static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
+{
+ DEBUGFS_ADD(channel_use, vlan);
+ DEBUGFS_ADD(drop_unencrypted, vlan);
+ DEBUGFS_ADD(eapol, vlan);
+ DEBUGFS_ADD(ieee8021_x, vlan);
+}
+
+static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
+{
+}
+
+static void add_files(struct ieee80211_sub_if_data *sdata)
+{
+ if (!sdata->debugfsdir)
+ return;
+
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ add_sta_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_AP:
+ add_ap_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_WDS:
+ add_wds_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ add_monitor_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_VLAN:
+ add_vlan_files(sdata);
+ break;
+ default:
+ break;
+ }
+}
+
+#define DEBUGFS_DEL(name, type) \
+ do { \
+ debugfs_remove(sdata->debugfs.type.name); \
+ sdata->debugfs.type.name = NULL; \
+ } while (0)
+
+static void del_sta_files(struct ieee80211_sub_if_data *sdata)
+{
+ DEBUGFS_DEL(channel_use, sta);
+ DEBUGFS_DEL(drop_unencrypted, sta);
+ DEBUGFS_DEL(eapol, sta);
+ DEBUGFS_DEL(ieee8021_x, sta);
+ DEBUGFS_DEL(state, sta);
+ DEBUGFS_DEL(bssid, sta);
+ DEBUGFS_DEL(prev_bssid, sta);
+ DEBUGFS_DEL(ssid_len, sta);
+ DEBUGFS_DEL(aid, sta);
+ DEBUGFS_DEL(ap_capab, sta);
+ DEBUGFS_DEL(capab, sta);
+ DEBUGFS_DEL(extra_ie_len, sta);
+ DEBUGFS_DEL(auth_tries, sta);
+ DEBUGFS_DEL(assoc_tries, sta);
+ DEBUGFS_DEL(auth_algs, sta);
+ DEBUGFS_DEL(auth_alg, sta);
+ DEBUGFS_DEL(auth_transaction, sta);
+ DEBUGFS_DEL(flags, sta);
+}
+
+static void del_ap_files(struct ieee80211_sub_if_data *sdata)
+{
+ DEBUGFS_DEL(channel_use, ap);
+ DEBUGFS_DEL(drop_unencrypted, ap);
+ DEBUGFS_DEL(eapol, ap);
+ DEBUGFS_DEL(ieee8021_x, ap);
+ DEBUGFS_DEL(num_sta_ps, ap);
+ DEBUGFS_DEL(dtim_period, ap);
+ DEBUGFS_DEL(dtim_count, ap);
+ DEBUGFS_DEL(num_beacons, ap);
+ DEBUGFS_DEL(force_unicast_rateidx, ap);
+ DEBUGFS_DEL(max_ratectrl_rateidx, ap);
+ DEBUGFS_DEL(num_buffered_multicast, ap);
+ DEBUGFS_DEL(beacon_head_len, ap);
+ DEBUGFS_DEL(beacon_tail_len, ap);
+}
+
+static void del_wds_files(struct ieee80211_sub_if_data *sdata)
+{
+ DEBUGFS_DEL(channel_use, wds);
+ DEBUGFS_DEL(drop_unencrypted, wds);
+ DEBUGFS_DEL(eapol, wds);
+ DEBUGFS_DEL(ieee8021_x, wds);
+ DEBUGFS_DEL(peer, wds);
+}
+
+static void del_vlan_files(struct ieee80211_sub_if_data *sdata)
+{
+ DEBUGFS_DEL(channel_use, vlan);
+ DEBUGFS_DEL(drop_unencrypted, vlan);
+ DEBUGFS_DEL(eapol, vlan);
+ DEBUGFS_DEL(ieee8021_x, vlan);
+}
+
+static void del_monitor_files(struct ieee80211_sub_if_data *sdata)
+{
+}
+
+static void del_files(struct ieee80211_sub_if_data *sdata, int type)
+{
+ if (!sdata->debugfsdir)
+ return;
+
+ switch (type) {
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ del_sta_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_AP:
+ del_ap_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_WDS:
+ del_wds_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ del_monitor_files(sdata);
+ break;
+ case IEEE80211_IF_TYPE_VLAN:
+ del_vlan_files(sdata);
+ break;
+ default:
+ break;
+ }
+}
+
+static int notif_registered;
+
+void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
+{
+ char buf[10+IFNAMSIZ];
+
+ if (!notif_registered)
+ return;
+
+ sprintf(buf, "netdev:%s", sdata->dev->name);
+ sdata->debugfsdir = debugfs_create_dir(buf,
+ sdata->local->hw.wiphy->debugfsdir);
+}
+
+void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
+{
+ del_files(sdata, sdata->type);
+ debugfs_remove(sdata->debugfsdir);
+ sdata->debugfsdir = NULL;
+}
+
+void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
+ int oldtype)
+{
+ del_files(sdata, oldtype);
+ add_files(sdata);
+}
+
+static int netdev_notify(struct notifier_block * nb,
+ unsigned long state,
+ void *ndev)
+{
+ struct net_device *dev = ndev;
+ struct dentry *dir;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ char buf[10+IFNAMSIZ];
+
+ if (state != NETDEV_CHANGENAME)
+ return 0;
+
+ if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy)
+ return 0;
+
+ if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
+ return 0;
+
+ sprintf(buf, "netdev:%s", dev->name);
+ dir = sdata->debugfsdir;
+ if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
+ printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
+ "dir to %s\n", buf);
+
+ return 0;
+}
+
+static struct notifier_block mac80211_debugfs_netdev_notifier = {
+ .notifier_call = netdev_notify,
+};
+
+void ieee80211_debugfs_netdev_init(void)
+{
+ int err;
+
+ err = register_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
+ if (err) {
+ printk(KERN_ERR
+ "mac80211: failed to install netdev notifier,"
+ " disabling per-netdev debugfs!\n");
+ } else
+ notif_registered = 1;
+}
+
+void ieee80211_debugfs_netdev_exit(void)
+{
+ unregister_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
+ notif_registered = 0;
+}
--- /dev/null
+/* routines exported for debugfs handling */
+
+#ifndef __IEEE80211_DEBUGFS_NETDEV_H
+#define __IEEE80211_DEBUGFS_NETDEV_H
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata);
+void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata);
+void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
+ int oldtype);
+void ieee80211_debugfs_netdev_init(void);
+void ieee80211_debugfs_netdev_exit(void);
+#else
+static inline void ieee80211_debugfs_add_netdev(
+ struct ieee80211_sub_if_data *sdata)
+{}
+static inline void ieee80211_debugfs_remove_netdev(
+ struct ieee80211_sub_if_data *sdata)
+{}
+static inline void ieee80211_debugfs_change_if_type(
+ struct ieee80211_sub_if_data *sdata, int oldtype)
+{}
+static inline void ieee80211_debugfs_netdev_init(void)
+{}
+
+static inline void ieee80211_debugfs_netdev_exit(void)
+{}
+#endif
+
+#endif /* __IEEE80211_DEBUGFS_NETDEV_H */
--- /dev/null
+/*
+ * Copyright 2003-2005 Devicescape Software, Inc.
+ * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/ieee80211.h>
+#include "ieee80211_i.h"
+#include "debugfs.h"
+#include "debugfs_sta.h"
+#include "sta_info.h"
+
+/* sta attributtes */
+
+#define STA_READ(name, buflen, field, format_string) \
+static ssize_t sta_ ##name## _read(struct file *file, \
+ char __user *userbuf, \
+ size_t count, loff_t *ppos) \
+{ \
+ int res; \
+ struct sta_info *sta = file->private_data; \
+ char buf[buflen]; \
+ res = scnprintf(buf, buflen, format_string, sta->field); \
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
+}
+#define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n")
+#define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n")
+#define STA_READ_LU(name, field) STA_READ(name, 20, field, "%lu\n")
+#define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n")
+
+#define STA_READ_RATE(name, field) \
+static ssize_t sta_##name##_read(struct file *file, \
+ char __user *userbuf, \
+ size_t count, loff_t *ppos) \
+{ \
+ struct sta_info *sta = file->private_data; \
+ struct ieee80211_local *local = wdev_priv(sta->dev->ieee80211_ptr);\
+ struct ieee80211_hw_mode *mode = local->oper_hw_mode; \
+ char buf[20]; \
+ int res = scnprintf(buf, sizeof(buf), "%d\n", \
+ (sta->field >= 0 && \
+ sta->field < mode->num_rates) ? \
+ mode->rates[sta->field].rate : -1); \
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
+}
+
+#define STA_OPS(name) \
+static const struct file_operations sta_ ##name## _ops = { \
+ .read = sta_##name##_read, \
+ .open = mac80211_open_file_generic, \
+}
+
+#define STA_FILE(name, field, format) \
+ STA_READ_##format(name, field) \
+ STA_OPS(name)
+
+STA_FILE(aid, aid, D);
+STA_FILE(dev, dev->name, S);
+STA_FILE(rx_packets, rx_packets, LU);
+STA_FILE(tx_packets, tx_packets, LU);
+STA_FILE(rx_bytes, rx_bytes, LU);
+STA_FILE(tx_bytes, tx_bytes, LU);
+STA_FILE(rx_duplicates, num_duplicates, LU);
+STA_FILE(rx_fragments, rx_fragments, LU);
+STA_FILE(rx_dropped, rx_dropped, LU);
+STA_FILE(tx_fragments, tx_fragments, LU);
+STA_FILE(tx_filtered, tx_filtered_count, LU);
+STA_FILE(txrate, txrate, RATE);
+STA_FILE(last_txrate, last_txrate, RATE);
+STA_FILE(tx_retry_failed, tx_retry_failed, LU);
+STA_FILE(tx_retry_count, tx_retry_count, LU);
+STA_FILE(last_rssi, last_rssi, D);
+STA_FILE(last_signal, last_signal, D);
+STA_FILE(last_noise, last_noise, D);
+STA_FILE(channel_use, channel_use, D);
+STA_FILE(wep_weak_iv_count, wep_weak_iv_count, D);
+
+static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[100];
+ struct sta_info *sta = file->private_data;
+ int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
+ sta->flags & WLAN_STA_AUTH ? "AUTH\n" : "",
+ sta->flags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
+ sta->flags & WLAN_STA_PS ? "PS\n" : "",
+ sta->flags & WLAN_STA_TIM ? "TIM\n" : "",
+ sta->flags & WLAN_STA_PERM ? "PERM\n" : "",
+ sta->flags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
+ sta->flags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
+ sta->flags & WLAN_STA_WME ? "WME\n" : "",
+ sta->flags & WLAN_STA_WDS ? "WDS\n" : "");
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+STA_OPS(flags);
+
+static ssize_t sta_num_ps_buf_frames_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[20];
+ struct sta_info *sta = file->private_data;
+ int res = scnprintf(buf, sizeof(buf), "%u\n",
+ skb_queue_len(&sta->ps_tx_buf));
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+STA_OPS(num_ps_buf_frames);
+
+static ssize_t sta_last_ack_rssi_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[100];
+ struct sta_info *sta = file->private_data;
+ int res = scnprintf(buf, sizeof(buf), "%d %d %d\n",
+ sta->last_ack_rssi[0],
+ sta->last_ack_rssi[1],
+ sta->last_ack_rssi[2]);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+STA_OPS(last_ack_rssi);
+
+static ssize_t sta_last_ack_ms_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[20];
+ struct sta_info *sta = file->private_data;
+ int res = scnprintf(buf, sizeof(buf), "%d\n",
+ sta->last_ack ?
+ jiffies_to_msecs(jiffies - sta->last_ack) : -1);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+STA_OPS(last_ack_ms);
+
+static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[20];
+ struct sta_info *sta = file->private_data;
+ int res = scnprintf(buf, sizeof(buf), "%d\n",
+ jiffies_to_msecs(jiffies - sta->last_rx));
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+STA_OPS(inactive_ms);
+
+static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
+ int i;
+ struct sta_info *sta = file->private_data;
+ for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+ p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
+ le16_to_cpu(sta->last_seq_ctrl[i]));
+ p += scnprintf(p, sizeof(buf)+buf-p, "\n");
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
+}
+STA_OPS(last_seq_ctrl);
+
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+static ssize_t sta_wme_rx_queue_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
+ int i;
+ struct sta_info *sta = file->private_data;
+ for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
+ p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
+ sta->wme_rx_queue[i]);
+ p += scnprintf(p, sizeof(buf)+buf-p, "\n");
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
+}
+STA_OPS(wme_rx_queue);
+
+static ssize_t sta_wme_tx_queue_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ char buf[15*NUM_TX_DATA_QUEUES], *p = buf;
+ int i;
+ struct sta_info *sta = file->private_data;
+ for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
+ p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
+ sta->wme_tx_queue[i]);
+ p += scnprintf(p, sizeof(buf)+buf-p, "\n");
+ return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
+}
+STA_OPS(wme_tx_queue);
+#endif
+
+#define DEBUGFS_ADD(name) \
+ sta->debugfs.name = debugfs_create_file(#name, 0444, \
+ sta->debugfs.dir, sta, &sta_ ##name## _ops);
+
+#define DEBUGFS_DEL(name) \
+ debugfs_remove(sta->debugfs.name);\
+ sta->debugfs.name = NULL;
+
+
+void ieee80211_sta_debugfs_add(struct sta_info *sta)
+{
+ char buf[3*6];
+ struct dentry *stations_dir = sta->local->debugfs.stations;
+
+ if (!stations_dir)
+ return;
+
+ sprintf(buf, MAC_FMT, MAC_ARG(sta->addr));
+
+ sta->debugfs.dir = debugfs_create_dir(buf, stations_dir);
+ if (!sta->debugfs.dir)
+ return;
+
+ DEBUGFS_ADD(flags);
+ DEBUGFS_ADD(num_ps_buf_frames);
+ DEBUGFS_ADD(last_ack_rssi);
+ DEBUGFS_ADD(last_ack_ms);
+ DEBUGFS_ADD(inactive_ms);
+ DEBUGFS_ADD(last_seq_ctrl);
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ DEBUGFS_ADD(wme_rx_queue);
+ DEBUGFS_ADD(wme_tx_queue);
+#endif
+}
+
+void ieee80211_sta_debugfs_remove(struct sta_info *sta)
+{
+ DEBUGFS_DEL(flags);
+ DEBUGFS_DEL(num_ps_buf_frames);
+ DEBUGFS_DEL(last_ack_rssi);
+ DEBUGFS_DEL(last_ack_ms);
+ DEBUGFS_DEL(inactive_ms);
+ DEBUGFS_DEL(last_seq_ctrl);
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ DEBUGFS_DEL(wme_rx_queue);
+ DEBUGFS_DEL(wme_tx_queue);
+#endif
+
+ debugfs_remove(sta->debugfs.dir);
+ sta->debugfs.dir = NULL;
+}
--- /dev/null
+#ifndef __MAC80211_DEBUGFS_STA_H
+#define __MAC80211_DEBUGFS_STA_H
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+void ieee80211_sta_debugfs_add(struct sta_info *sta);
+void ieee80211_sta_debugfs_remove(struct sta_info *sta);
+#else
+static inline void ieee80211_sta_debugfs_add(struct sta_info *sta) {}
+static inline void ieee80211_sta_debugfs_remove(struct sta_info *sta) {}
+#endif
+
+#endif /* __MAC80211_DEBUGFS_STA_H */
--- /dev/null
+/*
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * mac80211 - events
+ */
+
+#include <linux/netdevice.h>
+#include <net/iw_handler.h>
+#include "ieee80211_i.h"
+
+/*
+ * indicate a failed Michael MIC to userspace; the passed packet
+ * (in the variable hdr) must be long enough to extract the TKIP
+ * fields like TSC
+ */
+void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
+ struct ieee80211_hdr *hdr)
+{
+ union iwreq_data wrqu;
+ char *buf = kmalloc(128, GFP_ATOMIC);
+
+ if (buf) {
+ /* TODO: needed parameters: count, key type, TSC */
+ sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
+ "keyid=%d %scast addr=" MAC_FMT ")",
+ keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni",
+ MAC_ARG(hdr->addr2));
+ memset(&wrqu, 0, sizeof(wrqu));
+ wrqu.data.length = strlen(buf);
+ wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
+ kfree(buf);
+ }
+
+ /*
+ * TODO: re-add support for sending MIC failure indication
+ * with all info via nl80211
+ */
+}
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <net/mac80211.h>
+#include <net/ieee80211_radiotap.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/skbuff.h>
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+#include <linux/wireless.h>
+#include <linux/rtnetlink.h>
+#include <linux/bitmap.h>
+#include <net/cfg80211.h>
+
+#include "ieee80211_i.h"
+#include "ieee80211_rate.h"
+#include "wep.h"
+#include "wme.h"
+#include "aes_ccm.h"
+#include "ieee80211_led.h"
+#include "cfg.h"
+#include "debugfs.h"
+#include "debugfs_netdev.h"
+
+/*
+ * For seeing transmitted packets on monitor interfaces
+ * we have a radiotap header too.
+ */
+struct ieee80211_tx_status_rtap_hdr {
+ struct ieee80211_radiotap_header hdr;
+ __le16 tx_flags;
+ u8 data_retries;
+} __attribute__ ((packed));
+
+/* common interface routines */
+
+static int header_parse_80211(struct sk_buff *skb, unsigned char *haddr)
+{
+ memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
+ return ETH_ALEN;
+}
+
+/* must be called under mdev tx lock */
+static void ieee80211_configure_filter(struct ieee80211_local *local)
+{
+ unsigned int changed_flags;
+ unsigned int new_flags = 0;
+
+ if (atomic_read(&local->iff_promiscs))
+ new_flags |= FIF_PROMISC_IN_BSS;
+
+ if (atomic_read(&local->iff_allmultis))
+ new_flags |= FIF_ALLMULTI;
+
+ if (local->monitors)
+ new_flags |= FIF_CONTROL |
+ FIF_OTHER_BSS |
+ FIF_BCN_PRBRESP_PROMISC;
+
+ changed_flags = local->filter_flags ^ new_flags;
+
+ /* be a bit nasty */
+ new_flags |= (1<<31);
+
+ local->ops->configure_filter(local_to_hw(local),
+ changed_flags, &new_flags,
+ local->mdev->mc_count,
+ local->mdev->mc_list);
+
+ WARN_ON(new_flags & (1<<31));
+
+ local->filter_flags = new_flags & ~(1<<31);
+}
+
+/* master interface */
+
+static int ieee80211_master_open(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata;
+ int res = -EOPNOTSUPP;
+
+ /* we hold the RTNL here so can safely walk the list */
+ list_for_each_entry(sdata, &local->interfaces, list) {
+ if (sdata->dev != dev && netif_running(sdata->dev)) {
+ res = 0;
+ break;
+ }
+ }
+ return res;
+}
+
+static int ieee80211_master_stop(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata;
+
+ /* we hold the RTNL here so can safely walk the list */
+ list_for_each_entry(sdata, &local->interfaces, list)
+ if (sdata->dev != dev && netif_running(sdata->dev))
+ dev_close(sdata->dev);
+
+ return 0;
+}
+
+static void ieee80211_master_set_multicast_list(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ ieee80211_configure_filter(local);
+}
+
+/* regular interfaces */
+
+static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
+{
+ /* FIX: what would be proper limits for MTU?
+ * This interface uses 802.3 frames. */
+ if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6) {
+ printk(KERN_WARNING "%s: invalid MTU %d\n",
+ dev->name, new_mtu);
+ return -EINVAL;
+ }
+
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu);
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+ dev->mtu = new_mtu;
+ return 0;
+}
+
+static inline int identical_mac_addr_allowed(int type1, int type2)
+{
+ return (type1 == IEEE80211_IF_TYPE_MNTR ||
+ type2 == IEEE80211_IF_TYPE_MNTR ||
+ (type1 == IEEE80211_IF_TYPE_AP &&
+ type2 == IEEE80211_IF_TYPE_WDS) ||
+ (type1 == IEEE80211_IF_TYPE_WDS &&
+ (type2 == IEEE80211_IF_TYPE_WDS ||
+ type2 == IEEE80211_IF_TYPE_AP)) ||
+ (type1 == IEEE80211_IF_TYPE_AP &&
+ type2 == IEEE80211_IF_TYPE_VLAN) ||
+ (type1 == IEEE80211_IF_TYPE_VLAN &&
+ (type2 == IEEE80211_IF_TYPE_AP ||
+ type2 == IEEE80211_IF_TYPE_VLAN)));
+}
+
+static int ieee80211_open(struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata, *nsdata;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_if_init_conf conf;
+ int res;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ /* we hold the RTNL here so can safely walk the list */
+ list_for_each_entry(nsdata, &local->interfaces, list) {
+ struct net_device *ndev = nsdata->dev;
+
+ if (ndev != dev && ndev != local->mdev && netif_running(ndev) &&
+ compare_ether_addr(dev->dev_addr, ndev->dev_addr) == 0) {
+ /*
+ * check whether it may have the same address
+ */
+ if (!identical_mac_addr_allowed(sdata->type,
+ nsdata->type))
+ return -ENOTUNIQ;
+
+ /*
+ * can only add VLANs to enabled APs
+ */
+ if (sdata->type == IEEE80211_IF_TYPE_VLAN &&
+ nsdata->type == IEEE80211_IF_TYPE_AP &&
+ netif_running(nsdata->dev))
+ sdata->u.vlan.ap = nsdata;
+ }
+ }
+
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_WDS:
+ if (is_zero_ether_addr(sdata->u.wds.remote_addr))
+ return -ENOLINK;
+ break;
+ case IEEE80211_IF_TYPE_VLAN:
+ if (!sdata->u.vlan.ap)
+ return -ENOLINK;
+ break;
+ case IEEE80211_IF_TYPE_AP:
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_MNTR:
+ case IEEE80211_IF_TYPE_IBSS:
+ /* no special treatment */
+ break;
+ case IEEE80211_IF_TYPE_INVALID:
+ /* cannot happen */
+ WARN_ON(1);
+ break;
+ }
+
+ if (local->open_count == 0) {
+ res = 0;
+ if (local->ops->start)
+ res = local->ops->start(local_to_hw(local));
+ if (res)
+ return res;
+ }
+
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_VLAN:
+ list_add(&sdata->u.vlan.list, &sdata->u.vlan.ap->u.ap.vlans);
+ /* no need to tell driver */
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ /* must be before the call to ieee80211_configure_filter */
+ local->monitors++;
+ if (local->monitors == 1) {
+ netif_tx_lock_bh(local->mdev);
+ ieee80211_configure_filter(local);
+ netif_tx_unlock_bh(local->mdev);
+
+ local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
+ ieee80211_hw_config(local);
+ }
+ break;
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ sdata->u.sta.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+ /* fall through */
+ default:
+ conf.if_id = dev->ifindex;
+ conf.type = sdata->type;
+ conf.mac_addr = dev->dev_addr;
+ res = local->ops->add_interface(local_to_hw(local), &conf);
+ if (res && !local->open_count && local->ops->stop)
+ local->ops->stop(local_to_hw(local));
+ if (res)
+ return res;
+
+ ieee80211_if_config(dev);
+ ieee80211_reset_erp_info(dev);
+ ieee80211_enable_keys(sdata);
+
+ if (sdata->type == IEEE80211_IF_TYPE_STA &&
+ !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
+ netif_carrier_off(dev);
+ else
+ netif_carrier_on(dev);
+ }
+
+ if (local->open_count == 0) {
+ res = dev_open(local->mdev);
+ WARN_ON(res);
+ tasklet_enable(&local->tx_pending_tasklet);
+ tasklet_enable(&local->tasklet);
+ }
+
+ local->open_count++;
+
+ netif_start_queue(dev);
+
+ return 0;
+}
+
+static int ieee80211_stop(struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_if_init_conf conf;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ netif_stop_queue(dev);
+
+ dev_mc_unsync(local->mdev, dev);
+
+ /* down all dependent devices, that is VLANs */
+ if (sdata->type == IEEE80211_IF_TYPE_AP) {
+ struct ieee80211_sub_if_data *vlan, *tmp;
+
+ list_for_each_entry_safe(vlan, tmp, &sdata->u.ap.vlans,
+ u.vlan.list)
+ dev_close(vlan->dev);
+ WARN_ON(!list_empty(&sdata->u.ap.vlans));
+ }
+
+ local->open_count--;
+
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_VLAN:
+ list_del(&sdata->u.vlan.list);
+ sdata->u.vlan.ap = NULL;
+ /* no need to tell driver */
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ local->monitors--;
+ if (local->monitors == 0) {
+ netif_tx_lock_bh(local->mdev);
+ ieee80211_configure_filter(local);
+ netif_tx_unlock_bh(local->mdev);
+
+ local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
+ ieee80211_hw_config(local);
+ }
+ break;
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ sdata->u.sta.state = IEEE80211_DISABLED;
+ del_timer_sync(&sdata->u.sta.timer);
+ /*
+ * When we get here, the interface is marked down.
+ * Call synchronize_rcu() to wait for the RX path
+ * should it be using the interface and enqueuing
+ * frames at this very time on another CPU.
+ */
+ synchronize_rcu();
+ skb_queue_purge(&sdata->u.sta.skb_queue);
+
+ if (!local->ops->hw_scan &&
+ local->scan_dev == sdata->dev) {
+ local->sta_scanning = 0;
+ cancel_delayed_work(&local->scan_work);
+ }
+ flush_workqueue(local->hw.workqueue);
+ /* fall through */
+ default:
+ conf.if_id = dev->ifindex;
+ conf.type = sdata->type;
+ conf.mac_addr = dev->dev_addr;
+ /* disable all keys for as long as this netdev is down */
+ ieee80211_disable_keys(sdata);
+ local->ops->remove_interface(local_to_hw(local), &conf);
+ }
+
+ if (local->open_count == 0) {
+ if (netif_running(local->mdev))
+ dev_close(local->mdev);
+
+ if (local->ops->stop)
+ local->ops->stop(local_to_hw(local));
+
+ tasklet_disable(&local->tx_pending_tasklet);
+ tasklet_disable(&local->tasklet);
+ }
+
+ return 0;
+}
+
+static void ieee80211_set_multicast_list(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int allmulti, promisc, sdata_allmulti, sdata_promisc;
+
+ allmulti = !!(dev->flags & IFF_ALLMULTI);
+ promisc = !!(dev->flags & IFF_PROMISC);
+ sdata_allmulti = sdata->flags & IEEE80211_SDATA_ALLMULTI;
+ sdata_promisc = sdata->flags & IEEE80211_SDATA_PROMISC;
+
+ if (allmulti != sdata_allmulti) {
+ if (dev->flags & IFF_ALLMULTI)
+ atomic_inc(&local->iff_allmultis);
+ else
+ atomic_dec(&local->iff_allmultis);
+ sdata->flags ^= IEEE80211_SDATA_ALLMULTI;
+ }
+
+ if (promisc != sdata_promisc) {
+ if (dev->flags & IFF_PROMISC)
+ atomic_inc(&local->iff_promiscs);
+ else
+ atomic_dec(&local->iff_promiscs);
+ sdata->flags ^= IEEE80211_SDATA_PROMISC;
+ }
+
+ dev_mc_sync(local->mdev, dev);
+}
+
+/* Must not be called for mdev */
+void ieee80211_if_setup(struct net_device *dev)
+{
+ ether_setup(dev);
+ dev->hard_start_xmit = ieee80211_subif_start_xmit;
+ dev->wireless_handlers = &ieee80211_iw_handler_def;
+ dev->set_multicast_list = ieee80211_set_multicast_list;
+ dev->change_mtu = ieee80211_change_mtu;
+ dev->open = ieee80211_open;
+ dev->stop = ieee80211_stop;
+ dev->destructor = ieee80211_if_free;
+}
+
+/* WDS specialties */
+
+int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct sta_info *sta;
+
+ if (compare_ether_addr(remote_addr, sdata->u.wds.remote_addr) == 0)
+ return 0;
+
+ /* Create STA entry for the new peer */
+ sta = sta_info_add(local, dev, remote_addr, GFP_KERNEL);
+ if (!sta)
+ return -ENOMEM;
+ sta_info_put(sta);
+
+ /* Remove STA entry for the old peer */
+ sta = sta_info_get(local, sdata->u.wds.remote_addr);
+ if (sta) {
+ sta_info_free(sta);
+ sta_info_put(sta);
+ } else {
+ printk(KERN_DEBUG "%s: could not find STA entry for WDS link "
+ "peer " MAC_FMT "\n",
+ dev->name, MAC_ARG(sdata->u.wds.remote_addr));
+ }
+
+ /* Update WDS link data */
+ memcpy(&sdata->u.wds.remote_addr, remote_addr, ETH_ALEN);
+
+ return 0;
+}
+
+/* everything else */
+
+static int __ieee80211_if_config(struct net_device *dev,
+ struct sk_buff *beacon,
+ struct ieee80211_tx_control *control)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_if_conf conf;
+
+ if (!local->ops->config_interface || !netif_running(dev))
+ return 0;
+
+ memset(&conf, 0, sizeof(conf));
+ conf.type = sdata->type;
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ conf.bssid = sdata->u.sta.bssid;
+ conf.ssid = sdata->u.sta.ssid;
+ conf.ssid_len = sdata->u.sta.ssid_len;
+ } else if (sdata->type == IEEE80211_IF_TYPE_AP) {
+ conf.ssid = sdata->u.ap.ssid;
+ conf.ssid_len = sdata->u.ap.ssid_len;
+ conf.beacon = beacon;
+ conf.beacon_control = control;
+ }
+ return local->ops->config_interface(local_to_hw(local),
+ dev->ifindex, &conf);
+}
+
+int ieee80211_if_config(struct net_device *dev)
+{
+ return __ieee80211_if_config(dev, NULL, NULL);
+}
+
+int ieee80211_if_config_beacon(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_tx_control control;
+ struct sk_buff *skb;
+
+ if (!(local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE))
+ return 0;
+ skb = ieee80211_beacon_get(local_to_hw(local), dev->ifindex, &control);
+ if (!skb)
+ return -ENOMEM;
+ return __ieee80211_if_config(dev, skb, &control);
+}
+
+int ieee80211_hw_config(struct ieee80211_local *local)
+{
+ struct ieee80211_hw_mode *mode;
+ struct ieee80211_channel *chan;
+ int ret = 0;
+
+ if (local->sta_scanning) {
+ chan = local->scan_channel;
+ mode = local->scan_hw_mode;
+ } else {
+ chan = local->oper_channel;
+ mode = local->oper_hw_mode;
+ }
+
+ local->hw.conf.channel = chan->chan;
+ local->hw.conf.channel_val = chan->val;
+ if (!local->hw.conf.power_level) {
+ local->hw.conf.power_level = chan->power_level;
+ } else {
+ local->hw.conf.power_level = min(chan->power_level,
+ local->hw.conf.power_level);
+ }
+ local->hw.conf.freq = chan->freq;
+ local->hw.conf.phymode = mode->mode;
+ local->hw.conf.antenna_max = chan->antenna_max;
+ local->hw.conf.chan = chan;
+ local->hw.conf.mode = mode;
+
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "HW CONFIG: channel=%d freq=%d "
+ "phymode=%d\n", local->hw.conf.channel, local->hw.conf.freq,
+ local->hw.conf.phymode);
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+
+ if (local->open_count)
+ ret = local->ops->config(local_to_hw(local), &local->hw.conf);
+
+ return ret;
+}
+
+void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (local->ops->erp_ie_changed)
+ local->ops->erp_ie_changed(local_to_hw(local), changes,
+ !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION),
+ !(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE));
+}
+
+void ieee80211_reset_erp_info(struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ sdata->flags &= ~(IEEE80211_SDATA_USE_PROTECTION |
+ IEEE80211_SDATA_SHORT_PREAMBLE);
+ ieee80211_erp_info_change_notify(dev,
+ IEEE80211_ERP_CHANGE_PROTECTION |
+ IEEE80211_ERP_CHANGE_PREAMBLE);
+}
+
+void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
+ struct sk_buff *skb,
+ struct ieee80211_tx_status *status)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_tx_status *saved;
+ int tmp;
+
+ skb->dev = local->mdev;
+ saved = kmalloc(sizeof(struct ieee80211_tx_status), GFP_ATOMIC);
+ if (unlikely(!saved)) {
+ if (net_ratelimit())
+ printk(KERN_WARNING "%s: Not enough memory, "
+ "dropping tx status", skb->dev->name);
+ /* should be dev_kfree_skb_irq, but due to this function being
+ * named _irqsafe instead of just _irq we can't be sure that
+ * people won't call it from non-irq contexts */
+ dev_kfree_skb_any(skb);
+ return;
+ }
+ memcpy(saved, status, sizeof(struct ieee80211_tx_status));
+ /* copy pointer to saved status into skb->cb for use by tasklet */
+ memcpy(skb->cb, &saved, sizeof(saved));
+
+ skb->pkt_type = IEEE80211_TX_STATUS_MSG;
+ skb_queue_tail(status->control.flags & IEEE80211_TXCTL_REQ_TX_STATUS ?
+ &local->skb_queue : &local->skb_queue_unreliable, skb);
+ tmp = skb_queue_len(&local->skb_queue) +
+ skb_queue_len(&local->skb_queue_unreliable);
+ while (tmp > IEEE80211_IRQSAFE_QUEUE_LIMIT &&
+ (skb = skb_dequeue(&local->skb_queue_unreliable))) {
+ memcpy(&saved, skb->cb, sizeof(saved));
+ kfree(saved);
+ dev_kfree_skb_irq(skb);
+ tmp--;
+ I802_DEBUG_INC(local->tx_status_drop);
+ }
+ tasklet_schedule(&local->tasklet);
+}
+EXPORT_SYMBOL(ieee80211_tx_status_irqsafe);
+
+static void ieee80211_tasklet_handler(unsigned long data)
+{
+ struct ieee80211_local *local = (struct ieee80211_local *) data;
+ struct sk_buff *skb;
+ struct ieee80211_rx_status rx_status;
+ struct ieee80211_tx_status *tx_status;
+
+ while ((skb = skb_dequeue(&local->skb_queue)) ||
+ (skb = skb_dequeue(&local->skb_queue_unreliable))) {
+ switch (skb->pkt_type) {
+ case IEEE80211_RX_MSG:
+ /* status is in skb->cb */
+ memcpy(&rx_status, skb->cb, sizeof(rx_status));
+ /* Clear skb->type in order to not confuse kernel
+ * netstack. */
+ skb->pkt_type = 0;
+ __ieee80211_rx(local_to_hw(local), skb, &rx_status);
+ break;
+ case IEEE80211_TX_STATUS_MSG:
+ /* get pointer to saved status out of skb->cb */
+ memcpy(&tx_status, skb->cb, sizeof(tx_status));
+ skb->pkt_type = 0;
+ ieee80211_tx_status(local_to_hw(local),
+ skb, tx_status);
+ kfree(tx_status);
+ break;
+ default: /* should never get here! */
+ printk(KERN_ERR "%s: Unknown message type (%d)\n",
+ wiphy_name(local->hw.wiphy), skb->pkt_type);
+ dev_kfree_skb(skb);
+ break;
+ }
+ }
+}
+
+/* Remove added headers (e.g., QoS control), encryption header/MIC, etc. to
+ * make a prepared TX frame (one that has been given to hw) to look like brand
+ * new IEEE 802.11 frame that is ready to go through TX processing again.
+ * Also, tx_packet_data in cb is restored from tx_control. */
+static void ieee80211_remove_tx_extra(struct ieee80211_local *local,
+ struct ieee80211_key *key,
+ struct sk_buff *skb,
+ struct ieee80211_tx_control *control)
+{
+ int hdrlen, iv_len, mic_len;
+ struct ieee80211_tx_packet_data *pkt_data;
+
+ pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
+ pkt_data->ifindex = control->ifindex;
+ pkt_data->flags = 0;
+ if (control->flags & IEEE80211_TXCTL_REQ_TX_STATUS)
+ pkt_data->flags |= IEEE80211_TXPD_REQ_TX_STATUS;
+ if (control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)
+ pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
+ if (control->flags & IEEE80211_TXCTL_REQUEUE)
+ pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
+ pkt_data->queue = control->queue;
+
+ hdrlen = ieee80211_get_hdrlen_from_skb(skb);
+
+ if (!key)
+ goto no_key;
+
+ switch (key->conf.alg) {
+ case ALG_WEP:
+ iv_len = WEP_IV_LEN;
+ mic_len = WEP_ICV_LEN;
+ break;
+ case ALG_TKIP:
+ iv_len = TKIP_IV_LEN;
+ mic_len = TKIP_ICV_LEN;
+ break;
+ case ALG_CCMP:
+ iv_len = CCMP_HDR_LEN;
+ mic_len = CCMP_MIC_LEN;
+ break;
+ default:
+ goto no_key;
+ }
+
+ if (skb->len >= mic_len &&
+ !(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
+ skb_trim(skb, skb->len - mic_len);
+ if (skb->len >= iv_len && skb->len > hdrlen) {
+ memmove(skb->data + iv_len, skb->data, hdrlen);
+ skb_pull(skb, iv_len);
+ }
+
+no_key:
+ {
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u16 fc = le16_to_cpu(hdr->frame_control);
+ if ((fc & 0x8C) == 0x88) /* QoS Control Field */ {
+ fc &= ~IEEE80211_STYPE_QOS_DATA;
+ hdr->frame_control = cpu_to_le16(fc);
+ memmove(skb->data + 2, skb->data, hdrlen - 2);
+ skb_pull(skb, 2);
+ }
+ }
+}
+
+void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_tx_status *status)
+{
+ struct sk_buff *skb2;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_local *local = hw_to_local(hw);
+ u16 frag, type;
+ struct ieee80211_tx_status_rtap_hdr *rthdr;
+ struct ieee80211_sub_if_data *sdata;
+ int monitors;
+
+ if (!status) {
+ printk(KERN_ERR
+ "%s: ieee80211_tx_status called with NULL status\n",
+ wiphy_name(local->hw.wiphy));
+ dev_kfree_skb(skb);
+ return;
+ }
+
+ if (status->excessive_retries) {
+ struct sta_info *sta;
+ sta = sta_info_get(local, hdr->addr1);
+ if (sta) {
+ if (sta->flags & WLAN_STA_PS) {
+ /* The STA is in power save mode, so assume
+ * that this TX packet failed because of that.
+ */
+ status->excessive_retries = 0;
+ status->flags |= IEEE80211_TX_STATUS_TX_FILTERED;
+ }
+ sta_info_put(sta);
+ }
+ }
+
+ if (status->flags & IEEE80211_TX_STATUS_TX_FILTERED) {
+ struct sta_info *sta;
+ sta = sta_info_get(local, hdr->addr1);
+ if (sta) {
+ sta->tx_filtered_count++;
+
+ /* Clear the TX filter mask for this STA when sending
+ * the next packet. If the STA went to power save mode,
+ * this will happen when it is waking up for the next
+ * time. */
+ sta->clear_dst_mask = 1;
+
+ /* TODO: Is the WLAN_STA_PS flag always set here or is
+ * the race between RX and TX status causing some
+ * packets to be filtered out before 80211.o gets an
+ * update for PS status? This seems to be the case, so
+ * no changes are likely to be needed. */
+ if (sta->flags & WLAN_STA_PS &&
+ skb_queue_len(&sta->tx_filtered) <
+ STA_MAX_TX_BUFFER) {
+ ieee80211_remove_tx_extra(local, sta->key,
+ skb,
+ &status->control);
+ skb_queue_tail(&sta->tx_filtered, skb);
+ } else if (!(sta->flags & WLAN_STA_PS) &&
+ !(status->control.flags & IEEE80211_TXCTL_REQUEUE)) {
+ /* Software retry the packet once */
+ status->control.flags |= IEEE80211_TXCTL_REQUEUE;
+ ieee80211_remove_tx_extra(local, sta->key,
+ skb,
+ &status->control);
+ dev_queue_xmit(skb);
+ } else {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: dropped TX "
+ "filtered frame queue_len=%d "
+ "PS=%d @%lu\n",
+ wiphy_name(local->hw.wiphy),
+ skb_queue_len(
+ &sta->tx_filtered),
+ !!(sta->flags & WLAN_STA_PS),
+ jiffies);
+ }
+ dev_kfree_skb(skb);
+ }
+ sta_info_put(sta);
+ return;
+ }
+ } else {
+ /* FIXME: STUPID to call this with both local and local->mdev */
+ rate_control_tx_status(local, local->mdev, skb, status);
+ }
+
+ ieee80211_led_tx(local, 0);
+
+ /* SNMP counters
+ * Fragments are passed to low-level drivers as separate skbs, so these
+ * are actually fragments, not frames. Update frame counters only for
+ * the first fragment of the frame. */
+
+ frag = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG;
+ type = le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_FTYPE;
+
+ if (status->flags & IEEE80211_TX_STATUS_ACK) {
+ if (frag == 0) {
+ local->dot11TransmittedFrameCount++;
+ if (is_multicast_ether_addr(hdr->addr1))
+ local->dot11MulticastTransmittedFrameCount++;
+ if (status->retry_count > 0)
+ local->dot11RetryCount++;
+ if (status->retry_count > 1)
+ local->dot11MultipleRetryCount++;
+ }
+
+ /* This counter shall be incremented for an acknowledged MPDU
+ * with an individual address in the address 1 field or an MPDU
+ * with a multicast address in the address 1 field of type Data
+ * or Management. */
+ if (!is_multicast_ether_addr(hdr->addr1) ||
+ type == IEEE80211_FTYPE_DATA ||
+ type == IEEE80211_FTYPE_MGMT)
+ local->dot11TransmittedFragmentCount++;
+ } else {
+ if (frag == 0)
+ local->dot11FailedCount++;
+ }
+
+ /* this was a transmitted frame, but now we want to reuse it */
+ skb_orphan(skb);
+
+ if (!local->monitors) {
+ dev_kfree_skb(skb);
+ return;
+ }
+
+ /* send frame to monitor interfaces now */
+
+ if (skb_headroom(skb) < sizeof(*rthdr)) {
+ printk(KERN_ERR "ieee80211_tx_status: headroom too small\n");
+ dev_kfree_skb(skb);
+ return;
+ }
+
+ rthdr = (struct ieee80211_tx_status_rtap_hdr*)
+ skb_push(skb, sizeof(*rthdr));
+
+ memset(rthdr, 0, sizeof(*rthdr));
+ rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
+ rthdr->hdr.it_present =
+ cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) |
+ (1 << IEEE80211_RADIOTAP_DATA_RETRIES));
+
+ if (!(status->flags & IEEE80211_TX_STATUS_ACK) &&
+ !is_multicast_ether_addr(hdr->addr1))
+ rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL);
+
+ if ((status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS) &&
+ (status->control.flags & IEEE80211_TXCTL_USE_CTS_PROTECT))
+ rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS);
+ else if (status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS)
+ rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS);
+
+ rthdr->data_retries = status->retry_count;
+
+ rcu_read_lock();
+ monitors = local->monitors;
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ /*
+ * Using the monitors counter is possibly racy, but
+ * if the value is wrong we simply either clone the skb
+ * once too much or forget sending it to one monitor iface
+ * The latter case isn't nice but fixing the race is much
+ * more complicated.
+ */
+ if (!monitors || !skb)
+ goto out;
+
+ if (sdata->type == IEEE80211_IF_TYPE_MNTR) {
+ if (!netif_running(sdata->dev))
+ continue;
+ monitors--;
+ if (monitors)
+ skb2 = skb_clone(skb, GFP_ATOMIC);
+ else
+ skb2 = NULL;
+ skb->dev = sdata->dev;
+ /* XXX: is this sufficient for BPF? */
+ skb_set_mac_header(skb, 0);
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb->pkt_type = PACKET_OTHERHOST;
+ skb->protocol = htons(ETH_P_802_2);
+ memset(skb->cb, 0, sizeof(skb->cb));
+ netif_rx(skb);
+ skb = skb2;
+ }
+ }
+ out:
+ rcu_read_unlock();
+ if (skb)
+ dev_kfree_skb(skb);
+}
+EXPORT_SYMBOL(ieee80211_tx_status);
+
+struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
+ const struct ieee80211_ops *ops)
+{
+ struct net_device *mdev;
+ struct ieee80211_local *local;
+ struct ieee80211_sub_if_data *sdata;
+ int priv_size;
+ struct wiphy *wiphy;
+
+ /* Ensure 32-byte alignment of our private data and hw private data.
+ * We use the wiphy priv data for both our ieee80211_local and for
+ * the driver's private data
+ *
+ * In memory it'll be like this:
+ *
+ * +-------------------------+
+ * | struct wiphy |
+ * +-------------------------+
+ * | struct ieee80211_local |
+ * +-------------------------+
+ * | driver's private data |
+ * +-------------------------+
+ *
+ */
+ priv_size = ((sizeof(struct ieee80211_local) +
+ NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST) +
+ priv_data_len;
+
+ wiphy = wiphy_new(&mac80211_config_ops, priv_size);
+
+ if (!wiphy)
+ return NULL;
+
+ wiphy->privid = mac80211_wiphy_privid;
+
+ local = wiphy_priv(wiphy);
+ local->hw.wiphy = wiphy;
+
+ local->hw.priv = (char *)local +
+ ((sizeof(struct ieee80211_local) +
+ NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
+
+ BUG_ON(!ops->tx);
+ BUG_ON(!ops->start);
+ BUG_ON(!ops->stop);
+ BUG_ON(!ops->config);
+ BUG_ON(!ops->add_interface);
+ BUG_ON(!ops->remove_interface);
+ BUG_ON(!ops->configure_filter);
+ local->ops = ops;
+
+ /* for now, mdev needs sub_if_data :/ */
+ mdev = alloc_netdev(sizeof(struct ieee80211_sub_if_data),
+ "wmaster%d", ether_setup);
+ if (!mdev) {
+ wiphy_free(wiphy);
+ return NULL;
+ }
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(mdev);
+ mdev->ieee80211_ptr = &sdata->wdev;
+ sdata->wdev.wiphy = wiphy;
+
+ local->hw.queues = 1; /* default */
+
+ local->mdev = mdev;
+ local->rx_pre_handlers = ieee80211_rx_pre_handlers;
+ local->rx_handlers = ieee80211_rx_handlers;
+ local->tx_handlers = ieee80211_tx_handlers;
+
+ local->bridge_packets = 1;
+
+ local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
+ local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
+ local->short_retry_limit = 7;
+ local->long_retry_limit = 4;
+ local->hw.conf.radio_enabled = 1;
+
+ local->enabled_modes = ~0;
+
+ INIT_LIST_HEAD(&local->modes_list);
+
+ INIT_LIST_HEAD(&local->interfaces);
+
+ INIT_DELAYED_WORK(&local->scan_work, ieee80211_sta_scan_work);
+ ieee80211_rx_bss_list_init(mdev);
+
+ sta_info_init(local);
+
+ mdev->hard_start_xmit = ieee80211_master_start_xmit;
+ mdev->open = ieee80211_master_open;
+ mdev->stop = ieee80211_master_stop;
+ mdev->type = ARPHRD_IEEE80211;
+ mdev->hard_header_parse = header_parse_80211;
+ mdev->set_multicast_list = ieee80211_master_set_multicast_list;
+
+ sdata->type = IEEE80211_IF_TYPE_AP;
+ sdata->dev = mdev;
+ sdata->local = local;
+ sdata->u.ap.force_unicast_rateidx = -1;
+ sdata->u.ap.max_ratectrl_rateidx = -1;
+ ieee80211_if_sdata_init(sdata);
+ /* no RCU needed since we're still during init phase */
+ list_add_tail(&sdata->list, &local->interfaces);
+
+ tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
+ (unsigned long)local);
+ tasklet_disable(&local->tx_pending_tasklet);
+
+ tasklet_init(&local->tasklet,
+ ieee80211_tasklet_handler,
+ (unsigned long) local);
+ tasklet_disable(&local->tasklet);
+
+ skb_queue_head_init(&local->skb_queue);
+ skb_queue_head_init(&local->skb_queue_unreliable);
+
+ return local_to_hw(local);
+}
+EXPORT_SYMBOL(ieee80211_alloc_hw);
+
+int ieee80211_register_hw(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ const char *name;
+ int result;
+
+ result = wiphy_register(local->hw.wiphy);
+ if (result < 0)
+ return result;
+
+ name = wiphy_dev(local->hw.wiphy)->driver->name;
+ local->hw.workqueue = create_singlethread_workqueue(name);
+ if (!local->hw.workqueue) {
+ result = -ENOMEM;
+ goto fail_workqueue;
+ }
+
+ /*
+ * The hardware needs headroom for sending the frame,
+ * and we need some headroom for passing the frame to monitor
+ * interfaces, but never both at the same time.
+ */
+ local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom,
+ sizeof(struct ieee80211_tx_status_rtap_hdr));
+
+ debugfs_hw_add(local);
+
+ local->hw.conf.beacon_int = 1000;
+
+ local->wstats_flags |= local->hw.max_rssi ?
+ IW_QUAL_LEVEL_UPDATED : IW_QUAL_LEVEL_INVALID;
+ local->wstats_flags |= local->hw.max_signal ?
+ IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID;
+ local->wstats_flags |= local->hw.max_noise ?
+ IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID;
+ if (local->hw.max_rssi < 0 || local->hw.max_noise < 0)
+ local->wstats_flags |= IW_QUAL_DBM;
+
+ result = sta_info_start(local);
+ if (result < 0)
+ goto fail_sta_info;
+
+ rtnl_lock();
+ result = dev_alloc_name(local->mdev, local->mdev->name);
+ if (result < 0)
+ goto fail_dev;
+
+ memcpy(local->mdev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
+ SET_NETDEV_DEV(local->mdev, wiphy_dev(local->hw.wiphy));
+
+ result = register_netdevice(local->mdev);
+ if (result < 0)
+ goto fail_dev;
+
+ ieee80211_debugfs_add_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
+ ieee80211_if_set_type(local->mdev, IEEE80211_IF_TYPE_AP);
+
+ result = ieee80211_init_rate_ctrl_alg(local, NULL);
+ if (result < 0) {
+ printk(KERN_DEBUG "%s: Failed to initialize rate control "
+ "algorithm\n", wiphy_name(local->hw.wiphy));
+ goto fail_rate;
+ }
+
+ result = ieee80211_wep_init(local);
+
+ if (result < 0) {
+ printk(KERN_DEBUG "%s: Failed to initialize wep\n",
+ wiphy_name(local->hw.wiphy));
+ goto fail_wep;
+ }
+
+ ieee80211_install_qdisc(local->mdev);
+
+ /* add one default STA interface */
+ result = ieee80211_if_add(local->mdev, "wlan%d", NULL,
+ IEEE80211_IF_TYPE_STA);
+ if (result)
+ printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
+ wiphy_name(local->hw.wiphy));
+
+ local->reg_state = IEEE80211_DEV_REGISTERED;
+ rtnl_unlock();
+
+ ieee80211_led_init(local);
+
+ return 0;
+
+fail_wep:
+ rate_control_deinitialize(local);
+fail_rate:
+ ieee80211_debugfs_remove_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
+ unregister_netdevice(local->mdev);
+fail_dev:
+ rtnl_unlock();
+ sta_info_stop(local);
+fail_sta_info:
+ debugfs_hw_del(local);
+ destroy_workqueue(local->hw.workqueue);
+fail_workqueue:
+ wiphy_unregister(local->hw.wiphy);
+ return result;
+}
+EXPORT_SYMBOL(ieee80211_register_hw);
+
+int ieee80211_register_hwmode(struct ieee80211_hw *hw,
+ struct ieee80211_hw_mode *mode)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_rate *rate;
+ int i;
+
+ INIT_LIST_HEAD(&mode->list);
+ list_add_tail(&mode->list, &local->modes_list);
+
+ local->hw_modes |= (1 << mode->mode);
+ for (i = 0; i < mode->num_rates; i++) {
+ rate = &(mode->rates[i]);
+ rate->rate_inv = CHAN_UTIL_RATE_LCM / rate->rate;
+ }
+ ieee80211_prepare_rates(local, mode);
+
+ if (!local->oper_hw_mode) {
+ /* Default to this mode */
+ local->hw.conf.phymode = mode->mode;
+ local->oper_hw_mode = local->scan_hw_mode = mode;
+ local->oper_channel = local->scan_channel = &mode->channels[0];
+ local->hw.conf.mode = local->oper_hw_mode;
+ local->hw.conf.chan = local->oper_channel;
+ }
+
+ if (!(hw->flags & IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED))
+ ieee80211_set_default_regdomain(mode);
+
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_register_hwmode);
+
+void ieee80211_unregister_hw(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_sub_if_data *sdata, *tmp;
+ int i;
+
+ tasklet_kill(&local->tx_pending_tasklet);
+ tasklet_kill(&local->tasklet);
+
+ rtnl_lock();
+
+ BUG_ON(local->reg_state != IEEE80211_DEV_REGISTERED);
+
+ local->reg_state = IEEE80211_DEV_UNREGISTERED;
+
+ /*
+ * At this point, interface list manipulations are fine
+ * because the driver cannot be handing us frames any
+ * more and the tasklet is killed.
+ */
+
+ /*
+ * First, we remove all non-master interfaces. Do this because they
+ * may have bss pointer dependency on the master, and when we free
+ * the master these would be freed as well, breaking our list
+ * iteration completely.
+ */
+ list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
+ if (sdata->dev == local->mdev)
+ continue;
+ list_del(&sdata->list);
+ __ieee80211_if_del(local, sdata);
+ }
+
+ /* then, finally, remove the master interface */
+ __ieee80211_if_del(local, IEEE80211_DEV_TO_SUB_IF(local->mdev));
+
+ rtnl_unlock();
+
+ ieee80211_rx_bss_list_deinit(local->mdev);
+ ieee80211_clear_tx_pending(local);
+ sta_info_stop(local);
+ rate_control_deinitialize(local);
+ debugfs_hw_del(local);
+
+ for (i = 0; i < NUM_IEEE80211_MODES; i++) {
+ kfree(local->supp_rates[i]);
+ kfree(local->basic_rates[i]);
+ }
+
+ if (skb_queue_len(&local->skb_queue)
+ || skb_queue_len(&local->skb_queue_unreliable))
+ printk(KERN_WARNING "%s: skb_queue not empty\n",
+ wiphy_name(local->hw.wiphy));
+ skb_queue_purge(&local->skb_queue);
+ skb_queue_purge(&local->skb_queue_unreliable);
+
+ destroy_workqueue(local->hw.workqueue);
+ wiphy_unregister(local->hw.wiphy);
+ ieee80211_wep_free(local);
+ ieee80211_led_exit(local);
+}
+EXPORT_SYMBOL(ieee80211_unregister_hw);
+
+void ieee80211_free_hw(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ ieee80211_if_free(local->mdev);
+ wiphy_free(local->hw.wiphy);
+}
+EXPORT_SYMBOL(ieee80211_free_hw);
+
+static int __init ieee80211_init(void)
+{
+ struct sk_buff *skb;
+ int ret;
+
+ BUILD_BUG_ON(sizeof(struct ieee80211_tx_packet_data) > sizeof(skb->cb));
+
+ ret = ieee80211_wme_register();
+ if (ret) {
+ printk(KERN_DEBUG "ieee80211_init: failed to "
+ "initialize WME (err=%d)\n", ret);
+ return ret;
+ }
+
+ ieee80211_debugfs_netdev_init();
+ ieee80211_regdomain_init();
+
+ return 0;
+}
+
+static void __exit ieee80211_exit(void)
+{
+ ieee80211_wme_unregister();
+ ieee80211_debugfs_netdev_exit();
+}
+
+
+subsys_initcall(ieee80211_init);
+module_exit(ieee80211_exit);
+
+MODULE_DESCRIPTION("IEEE 802.11 subsystem");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * IEEE 802.11 driver (80211.o) -- hostapd interface
+ * Copyright 2002-2004, Instant802 Networks, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef IEEE80211_COMMON_H
+#define IEEE80211_COMMON_H
+
+#include <linux/types.h>
+
+/*
+ * This is common header information with user space. It is used on all
+ * frames sent to wlan#ap interface.
+ */
+
+#define IEEE80211_FI_VERSION 0x80211001
+
+struct ieee80211_frame_info {
+ __be32 version;
+ __be32 length;
+ __be64 mactime;
+ __be64 hosttime;
+ __be32 phytype;
+ __be32 channel;
+ __be32 datarate;
+ __be32 antenna;
+ __be32 priority;
+ __be32 ssi_type;
+ __be32 ssi_signal;
+ __be32 ssi_noise;
+ __be32 preamble;
+ __be32 encoding;
+
+ /* Note: this structure is otherwise identical to capture format used
+ * in linux-wlan-ng, but this additional field is used to provide meta
+ * data about the frame to hostapd. This was the easiest method for
+ * providing this information, but this might change in the future. */
+ __be32 msg_type;
+} __attribute__ ((packed));
+
+
+enum ieee80211_msg_type {
+ ieee80211_msg_normal = 0,
+ ieee80211_msg_tx_callback_ack = 1,
+ ieee80211_msg_tx_callback_fail = 2,
+ /* hole at 3, was ieee80211_msg_passive_scan but unused */
+ /* hole at 4, was ieee80211_msg_wep_frame_unknown_key but now unused */
+ ieee80211_msg_michael_mic_failure = 5,
+ /* hole at 6, was monitor but never sent to userspace */
+ ieee80211_msg_sta_not_assoc = 7,
+ /* 8 was ieee80211_msg_set_aid_for_sta */
+ /* 9 was ieee80211_msg_key_threshold_notification */
+ /* 11 was ieee80211_msg_radar */
+};
+
+struct ieee80211_msg_key_notification {
+ int tx_rx_count;
+ char ifname[IFNAMSIZ];
+ u8 addr[ETH_ALEN]; /* ff:ff:ff:ff:ff:ff for broadcast keys */
+};
+
+
+enum ieee80211_phytype {
+ ieee80211_phytype_fhss_dot11_97 = 1,
+ ieee80211_phytype_dsss_dot11_97 = 2,
+ ieee80211_phytype_irbaseband = 3,
+ ieee80211_phytype_dsss_dot11_b = 4,
+ ieee80211_phytype_pbcc_dot11_b = 5,
+ ieee80211_phytype_ofdm_dot11_g = 6,
+ ieee80211_phytype_pbcc_dot11_g = 7,
+ ieee80211_phytype_ofdm_dot11_a = 8,
+};
+
+enum ieee80211_ssi_type {
+ ieee80211_ssi_none = 0,
+ ieee80211_ssi_norm = 1, /* normalized, 0-1000 */
+ ieee80211_ssi_dbm = 2,
+ ieee80211_ssi_raw = 3, /* raw SSI */
+};
+
+struct ieee80211_radar_info {
+ int channel;
+ int radar;
+ int radar_type;
+};
+
+#endif /* IEEE80211_COMMON_H */
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef IEEE80211_I_H
+#define IEEE80211_I_H
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/if_ether.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/workqueue.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/etherdevice.h>
+#include <net/wireless.h>
+#include "ieee80211_key.h"
+#include "sta_info.h"
+
+/* ieee80211.o internal definitions, etc. These are not included into
+ * low-level drivers. */
+
+#ifndef ETH_P_PAE
+#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
+#endif /* ETH_P_PAE */
+
+#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
+
+struct ieee80211_local;
+
+#define BIT(x) (1 << (x))
+
+#define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3)
+
+/* Maximum number of broadcast/multicast frames to buffer when some of the
+ * associated stations are using power saving. */
+#define AP_MAX_BC_BUFFER 128
+
+/* Maximum number of frames buffered to all STAs, including multicast frames.
+ * Note: increasing this limit increases the potential memory requirement. Each
+ * frame can be up to about 2 kB long. */
+#define TOTAL_MAX_TX_BUFFER 512
+
+/* Required encryption head and tailroom */
+#define IEEE80211_ENCRYPT_HEADROOM 8
+#define IEEE80211_ENCRYPT_TAILROOM 12
+
+/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
+ * reception of at least three fragmented frames. This limit can be increased
+ * by changing this define, at the cost of slower frame reassembly and
+ * increased memory use (about 2 kB of RAM per entry). */
+#define IEEE80211_FRAGMENT_MAX 4
+
+struct ieee80211_fragment_entry {
+ unsigned long first_frag_time;
+ unsigned int seq;
+ unsigned int rx_queue;
+ unsigned int last_frag;
+ unsigned int extra_len;
+ struct sk_buff_head skb_list;
+ int ccmp; /* Whether fragments were encrypted with CCMP */
+ u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
+};
+
+
+struct ieee80211_sta_bss {
+ struct list_head list;
+ struct ieee80211_sta_bss *hnext;
+ atomic_t users;
+
+ u8 bssid[ETH_ALEN];
+ u8 ssid[IEEE80211_MAX_SSID_LEN];
+ size_t ssid_len;
+ u16 capability; /* host byte order */
+ int hw_mode;
+ int channel;
+ int freq;
+ int rssi, signal, noise;
+ u8 *wpa_ie;
+ size_t wpa_ie_len;
+ u8 *rsn_ie;
+ size_t rsn_ie_len;
+ u8 *wmm_ie;
+ size_t wmm_ie_len;
+#define IEEE80211_MAX_SUPP_RATES 32
+ u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
+ size_t supp_rates_len;
+ int beacon_int;
+ u64 timestamp;
+
+ int probe_resp;
+ unsigned long last_update;
+
+ /* during assocation, we save an ERP value from a probe response so
+ * that we can feed ERP info to the driver when handling the
+ * association completes. these fields probably won't be up-to-date
+ * otherwise, you probably don't want to use them. */
+ int has_erp_value;
+ u8 erp_value;
+};
+
+
+typedef enum {
+ TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
+} ieee80211_txrx_result;
+
+/* flags used in struct ieee80211_txrx_data.flags */
+/* whether the MSDU was fragmented */
+#define IEEE80211_TXRXD_FRAGMENTED BIT(0)
+#define IEEE80211_TXRXD_TXUNICAST BIT(1)
+#define IEEE80211_TXRXD_TXPS_BUFFERED BIT(2)
+#define IEEE80211_TXRXD_TXPROBE_LAST_FRAG BIT(3)
+#define IEEE80211_TXRXD_RXIN_SCAN BIT(4)
+/* frame is destined to interface currently processed (incl. multicast frames) */
+#define IEEE80211_TXRXD_RXRA_MATCH BIT(5)
+#define IEEE80211_TXRXD_TX_INJECTED BIT(6)
+struct ieee80211_txrx_data {
+ struct sk_buff *skb;
+ struct net_device *dev;
+ struct ieee80211_local *local;
+ struct ieee80211_sub_if_data *sdata;
+ struct sta_info *sta;
+ u16 fc, ethertype;
+ struct ieee80211_key *key;
+ unsigned int flags;
+ union {
+ struct {
+ struct ieee80211_tx_control *control;
+ struct ieee80211_hw_mode *mode;
+ struct ieee80211_rate *rate;
+ /* use this rate (if set) for last fragment; rate can
+ * be set to lower rate for the first fragments, e.g.,
+ * when using CTS protection with IEEE 802.11g. */
+ struct ieee80211_rate *last_frag_rate;
+ int last_frag_hwrate;
+
+ /* Extra fragments (in addition to the first fragment
+ * in skb) */
+ int num_extra_frag;
+ struct sk_buff **extra_frag;
+ } tx;
+ struct {
+ struct ieee80211_rx_status *status;
+ int sent_ps_buffered;
+ int queue;
+ int load;
+ u32 tkip_iv32;
+ u16 tkip_iv16;
+ } rx;
+ } u;
+};
+
+/* flags used in struct ieee80211_tx_packet_data.flags */
+#define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
+#define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
+#define IEEE80211_TXPD_REQUEUE BIT(2)
+/* Stored in sk_buff->cb */
+struct ieee80211_tx_packet_data {
+ int ifindex;
+ unsigned long jiffies;
+ unsigned int flags;
+ u8 queue;
+};
+
+struct ieee80211_tx_stored_packet {
+ struct ieee80211_tx_control control;
+ struct sk_buff *skb;
+ int num_extra_frag;
+ struct sk_buff **extra_frag;
+ int last_frag_rateidx;
+ int last_frag_hwrate;
+ struct ieee80211_rate *last_frag_rate;
+ unsigned int last_frag_rate_ctrl_probe;
+};
+
+typedef ieee80211_txrx_result (*ieee80211_tx_handler)
+(struct ieee80211_txrx_data *tx);
+
+typedef ieee80211_txrx_result (*ieee80211_rx_handler)
+(struct ieee80211_txrx_data *rx);
+
+struct ieee80211_if_ap {
+ u8 *beacon_head, *beacon_tail;
+ int beacon_head_len, beacon_tail_len;
+
+ struct list_head vlans;
+
+ u8 ssid[IEEE80211_MAX_SSID_LEN];
+ size_t ssid_len;
+
+ /* yes, this looks ugly, but guarantees that we can later use
+ * bitmap_empty :)
+ * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
+ u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
+ atomic_t num_sta_ps; /* number of stations in PS mode */
+ struct sk_buff_head ps_bc_buf;
+ int dtim_period, dtim_count;
+ int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
+ int max_ratectrl_rateidx; /* max TX rateidx for rate control */
+ int num_beacons; /* number of TXed beacon frames for this BSS */
+};
+
+struct ieee80211_if_wds {
+ u8 remote_addr[ETH_ALEN];
+ struct sta_info *sta;
+};
+
+struct ieee80211_if_vlan {
+ struct ieee80211_sub_if_data *ap;
+ struct list_head list;
+};
+
+/* flags used in struct ieee80211_if_sta.flags */
+#define IEEE80211_STA_SSID_SET BIT(0)
+#define IEEE80211_STA_BSSID_SET BIT(1)
+#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
+#define IEEE80211_STA_AUTHENTICATED BIT(3)
+#define IEEE80211_STA_ASSOCIATED BIT(4)
+#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
+#define IEEE80211_STA_CREATE_IBSS BIT(6)
+#define IEEE80211_STA_MIXED_CELL BIT(7)
+#define IEEE80211_STA_WMM_ENABLED BIT(8)
+#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
+#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
+#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
+struct ieee80211_if_sta {
+ enum {
+ IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
+ IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
+ IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
+ } state;
+ struct timer_list timer;
+ struct work_struct work;
+ u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
+ u8 ssid[IEEE80211_MAX_SSID_LEN];
+ size_t ssid_len;
+ u16 aid;
+ u16 ap_capab, capab;
+ u8 *extra_ie; /* to be added to the end of AssocReq */
+ size_t extra_ie_len;
+
+ /* The last AssocReq/Resp IEs */
+ u8 *assocreq_ies, *assocresp_ies;
+ size_t assocreq_ies_len, assocresp_ies_len;
+
+ int auth_tries, assoc_tries;
+
+ unsigned int flags;
+#define IEEE80211_STA_REQ_SCAN 0
+#define IEEE80211_STA_REQ_AUTH 1
+#define IEEE80211_STA_REQ_RUN 2
+ unsigned long request;
+ struct sk_buff_head skb_queue;
+
+ int key_management_enabled;
+ unsigned long last_probe;
+
+#define IEEE80211_AUTH_ALG_OPEN BIT(0)
+#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
+#define IEEE80211_AUTH_ALG_LEAP BIT(2)
+ unsigned int auth_algs; /* bitfield of allowed auth algs */
+ int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
+ int auth_transaction;
+
+ unsigned long ibss_join_req;
+ struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
+ u32 supp_rates_bits;
+
+ int wmm_last_param_set;
+};
+
+
+/* flags used in struct ieee80211_sub_if_data.flags */
+#define IEEE80211_SDATA_ALLMULTI BIT(0)
+#define IEEE80211_SDATA_PROMISC BIT(1)
+#define IEEE80211_SDATA_USE_PROTECTION BIT(2) /* CTS protect ERP frames */
+/* use short preamble with IEEE 802.11b: this flag is set when the AP or beacon
+ * generator reports that there are no present stations that cannot support short
+ * preambles */
+#define IEEE80211_SDATA_SHORT_PREAMBLE BIT(3)
+#define IEEE80211_SDATA_USERSPACE_MLME BIT(4)
+struct ieee80211_sub_if_data {
+ struct list_head list;
+ enum ieee80211_if_types type;
+
+ struct wireless_dev wdev;
+
+ /* keys */
+ struct list_head key_list;
+
+ struct net_device *dev;
+ struct ieee80211_local *local;
+
+ unsigned int flags;
+
+ int drop_unencrypted;
+ int eapol; /* 0 = process EAPOL frames as normal data frames,
+ * 1 = send EAPOL frames through wlan#ap to hostapd
+ * (default) */
+ int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized
+ * port */
+
+ u16 sequence;
+
+ /* Fragment table for host-based reassembly */
+ struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
+ unsigned int fragment_next;
+
+#define NUM_DEFAULT_KEYS 4
+ struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
+ struct ieee80211_key *default_key;
+
+ struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
+
+ union {
+ struct ieee80211_if_ap ap;
+ struct ieee80211_if_wds wds;
+ struct ieee80211_if_vlan vlan;
+ struct ieee80211_if_sta sta;
+ } u;
+ int channel_use;
+ int channel_use_raw;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct dentry *debugfsdir;
+ union {
+ struct {
+ struct dentry *channel_use;
+ struct dentry *drop_unencrypted;
+ struct dentry *eapol;
+ struct dentry *ieee8021_x;
+ struct dentry *state;
+ struct dentry *bssid;
+ struct dentry *prev_bssid;
+ struct dentry *ssid_len;
+ struct dentry *aid;
+ struct dentry *ap_capab;
+ struct dentry *capab;
+ struct dentry *extra_ie_len;
+ struct dentry *auth_tries;
+ struct dentry *assoc_tries;
+ struct dentry *auth_algs;
+ struct dentry *auth_alg;
+ struct dentry *auth_transaction;
+ struct dentry *flags;
+ } sta;
+ struct {
+ struct dentry *channel_use;
+ struct dentry *drop_unencrypted;
+ struct dentry *eapol;
+ struct dentry *ieee8021_x;
+ struct dentry *num_sta_ps;
+ struct dentry *dtim_period;
+ struct dentry *dtim_count;
+ struct dentry *num_beacons;
+ struct dentry *force_unicast_rateidx;
+ struct dentry *max_ratectrl_rateidx;
+ struct dentry *num_buffered_multicast;
+ struct dentry *beacon_head_len;
+ struct dentry *beacon_tail_len;
+ } ap;
+ struct {
+ struct dentry *channel_use;
+ struct dentry *drop_unencrypted;
+ struct dentry *eapol;
+ struct dentry *ieee8021_x;
+ struct dentry *peer;
+ } wds;
+ struct {
+ struct dentry *channel_use;
+ struct dentry *drop_unencrypted;
+ struct dentry *eapol;
+ struct dentry *ieee8021_x;
+ } vlan;
+ struct {
+ struct dentry *mode;
+ } monitor;
+ struct dentry *default_key;
+ } debugfs;
+#endif
+};
+
+#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
+
+enum {
+ IEEE80211_RX_MSG = 1,
+ IEEE80211_TX_STATUS_MSG = 2,
+};
+
+struct ieee80211_local {
+ /* embed the driver visible part.
+ * don't cast (use the static inlines below), but we keep
+ * it first anyway so they become a no-op */
+ struct ieee80211_hw hw;
+
+ const struct ieee80211_ops *ops;
+
+ /* List of registered struct ieee80211_hw_mode */
+ struct list_head modes_list;
+
+ struct net_device *mdev; /* wmaster# - "master" 802.11 device */
+ int open_count;
+ int monitors;
+ unsigned int filter_flags; /* FIF_* */
+ struct iw_statistics wstats;
+ u8 wstats_flags;
+ int tx_headroom; /* required headroom for hardware/radiotap */
+
+ enum {
+ IEEE80211_DEV_UNINITIALIZED = 0,
+ IEEE80211_DEV_REGISTERED,
+ IEEE80211_DEV_UNREGISTERED,
+ } reg_state;
+
+ /* Tasklet and skb queue to process calls from IRQ mode. All frames
+ * added to skb_queue will be processed, but frames in
+ * skb_queue_unreliable may be dropped if the total length of these
+ * queues increases over the limit. */
+#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
+ struct tasklet_struct tasklet;
+ struct sk_buff_head skb_queue;
+ struct sk_buff_head skb_queue_unreliable;
+
+ /* Station data structures */
+ rwlock_t sta_lock; /* protects STA data structures */
+ int num_sta; /* number of stations in sta_list */
+ struct list_head sta_list;
+ struct sta_info *sta_hash[STA_HASH_SIZE];
+ struct timer_list sta_cleanup;
+
+ unsigned long state[NUM_TX_DATA_QUEUES];
+ struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
+ struct tasklet_struct tx_pending_tasklet;
+
+ /* number of interfaces with corresponding IFF_ flags */
+ atomic_t iff_allmultis, iff_promiscs;
+
+ struct rate_control_ref *rate_ctrl;
+
+ /* Supported and basic rate filters for different modes. These are
+ * pointers to -1 terminated lists and rates in 100 kbps units. */
+ int *supp_rates[NUM_IEEE80211_MODES];
+ int *basic_rates[NUM_IEEE80211_MODES];
+
+ int rts_threshold;
+ int fragmentation_threshold;
+ int short_retry_limit; /* dot11ShortRetryLimit */
+ int long_retry_limit; /* dot11LongRetryLimit */
+
+ struct crypto_blkcipher *wep_tx_tfm;
+ struct crypto_blkcipher *wep_rx_tfm;
+ u32 wep_iv;
+
+ int bridge_packets; /* bridge packets between associated stations and
+ * deliver multicast frames both back to wireless
+ * media and to the local net stack */
+
+ ieee80211_rx_handler *rx_pre_handlers;
+ ieee80211_rx_handler *rx_handlers;
+ ieee80211_tx_handler *tx_handlers;
+
+ struct list_head interfaces;
+
+ int sta_scanning;
+ int scan_channel_idx;
+ enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
+ unsigned long last_scan_completed;
+ struct delayed_work scan_work;
+ struct net_device *scan_dev;
+ struct ieee80211_channel *oper_channel, *scan_channel;
+ struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
+ u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
+ size_t scan_ssid_len;
+ struct list_head sta_bss_list;
+ struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
+ spinlock_t sta_bss_lock;
+#define IEEE80211_SCAN_MATCH_SSID BIT(0)
+#define IEEE80211_SCAN_WPA_ONLY BIT(1)
+#define IEEE80211_SCAN_EXTRA_INFO BIT(2)
+ int scan_flags;
+
+ /* SNMP counters */
+ /* dot11CountersTable */
+ u32 dot11TransmittedFragmentCount;
+ u32 dot11MulticastTransmittedFrameCount;
+ u32 dot11FailedCount;
+ u32 dot11RetryCount;
+ u32 dot11MultipleRetryCount;
+ u32 dot11FrameDuplicateCount;
+ u32 dot11ReceivedFragmentCount;
+ u32 dot11MulticastReceivedFrameCount;
+ u32 dot11TransmittedFrameCount;
+ u32 dot11WEPUndecryptableCount;
+
+#ifdef CONFIG_MAC80211_LEDS
+ int tx_led_counter, rx_led_counter;
+ struct led_trigger *tx_led, *rx_led, *assoc_led;
+ char tx_led_name[32], rx_led_name[32], assoc_led_name[32];
+#endif
+
+ u32 channel_use;
+ u32 channel_use_raw;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct work_struct sta_debugfs_add;
+#endif
+
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ /* TX/RX handler statistics */
+ unsigned int tx_handlers_drop;
+ unsigned int tx_handlers_queued;
+ unsigned int tx_handlers_drop_unencrypted;
+ unsigned int tx_handlers_drop_fragment;
+ unsigned int tx_handlers_drop_wep;
+ unsigned int tx_handlers_drop_not_assoc;
+ unsigned int tx_handlers_drop_unauth_port;
+ unsigned int rx_handlers_drop;
+ unsigned int rx_handlers_queued;
+ unsigned int rx_handlers_drop_nullfunc;
+ unsigned int rx_handlers_drop_defrag;
+ unsigned int rx_handlers_drop_short;
+ unsigned int rx_handlers_drop_passive_scan;
+ unsigned int tx_expand_skb_head;
+ unsigned int tx_expand_skb_head_cloned;
+ unsigned int rx_expand_skb_head;
+ unsigned int rx_expand_skb_head2;
+ unsigned int rx_handlers_fragments;
+ unsigned int tx_status_drop;
+ unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
+ unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
+#define I802_DEBUG_INC(c) (c)++
+#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
+#define I802_DEBUG_INC(c) do { } while (0)
+#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
+
+
+ int total_ps_buffered; /* total number of all buffered unicast and
+ * multicast packets for power saving stations
+ */
+ int wifi_wme_noack_test;
+ unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
+
+ unsigned int enabled_modes; /* bitfield of allowed modes;
+ * (1 << MODE_*) */
+ unsigned int hw_modes; /* bitfield of supported hardware modes;
+ * (1 << MODE_*) */
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct local_debugfsdentries {
+ struct dentry *channel;
+ struct dentry *frequency;
+ struct dentry *antenna_sel_tx;
+ struct dentry *antenna_sel_rx;
+ struct dentry *bridge_packets;
+ struct dentry *rts_threshold;
+ struct dentry *fragmentation_threshold;
+ struct dentry *short_retry_limit;
+ struct dentry *long_retry_limit;
+ struct dentry *total_ps_buffered;
+ struct dentry *mode;
+ struct dentry *wep_iv;
+ struct dentry *modes;
+ struct dentry *statistics;
+ struct local_debugfsdentries_statsdentries {
+ struct dentry *transmitted_fragment_count;
+ struct dentry *multicast_transmitted_frame_count;
+ struct dentry *failed_count;
+ struct dentry *retry_count;
+ struct dentry *multiple_retry_count;
+ struct dentry *frame_duplicate_count;
+ struct dentry *received_fragment_count;
+ struct dentry *multicast_received_frame_count;
+ struct dentry *transmitted_frame_count;
+ struct dentry *wep_undecryptable_count;
+ struct dentry *num_scans;
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ struct dentry *tx_handlers_drop;
+ struct dentry *tx_handlers_queued;
+ struct dentry *tx_handlers_drop_unencrypted;
+ struct dentry *tx_handlers_drop_fragment;
+ struct dentry *tx_handlers_drop_wep;
+ struct dentry *tx_handlers_drop_not_assoc;
+ struct dentry *tx_handlers_drop_unauth_port;
+ struct dentry *rx_handlers_drop;
+ struct dentry *rx_handlers_queued;
+ struct dentry *rx_handlers_drop_nullfunc;
+ struct dentry *rx_handlers_drop_defrag;
+ struct dentry *rx_handlers_drop_short;
+ struct dentry *rx_handlers_drop_passive_scan;
+ struct dentry *tx_expand_skb_head;
+ struct dentry *tx_expand_skb_head_cloned;
+ struct dentry *rx_expand_skb_head;
+ struct dentry *rx_expand_skb_head2;
+ struct dentry *rx_handlers_fragments;
+ struct dentry *tx_status_drop;
+ struct dentry *wme_tx_queue;
+ struct dentry *wme_rx_queue;
+#endif
+ struct dentry *dot11ACKFailureCount;
+ struct dentry *dot11RTSFailureCount;
+ struct dentry *dot11FCSErrorCount;
+ struct dentry *dot11RTSSuccessCount;
+ } stats;
+ struct dentry *stations;
+ struct dentry *keys;
+ } debugfs;
+#endif
+};
+
+static inline struct ieee80211_local *hw_to_local(
+ struct ieee80211_hw *hw)
+{
+ return container_of(hw, struct ieee80211_local, hw);
+}
+
+static inline struct ieee80211_hw *local_to_hw(
+ struct ieee80211_local *local)
+{
+ return &local->hw;
+}
+
+enum ieee80211_link_state_t {
+ IEEE80211_LINK_STATE_XOFF = 0,
+ IEEE80211_LINK_STATE_PENDING,
+};
+
+struct sta_attribute {
+ struct attribute attr;
+ ssize_t (*show)(const struct sta_info *, char *buf);
+ ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
+};
+
+static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
+{
+ /*
+ * This format has been mandated by the IEEE specifications,
+ * so this line may not be changed to use the __set_bit() format.
+ */
+ bss->tim[aid / 8] |= (1 << (aid % 8));
+}
+
+static inline void bss_tim_set(struct ieee80211_local *local,
+ struct ieee80211_if_ap *bss, u16 aid)
+{
+ read_lock_bh(&local->sta_lock);
+ __bss_tim_set(bss, aid);
+ read_unlock_bh(&local->sta_lock);
+}
+
+static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
+{
+ /*
+ * This format has been mandated by the IEEE specifications,
+ * so this line may not be changed to use the __clear_bit() format.
+ */
+ bss->tim[aid / 8] &= ~(1 << (aid % 8));
+}
+
+static inline void bss_tim_clear(struct ieee80211_local *local,
+ struct ieee80211_if_ap *bss, u16 aid)
+{
+ read_lock_bh(&local->sta_lock);
+ __bss_tim_clear(bss, aid);
+ read_unlock_bh(&local->sta_lock);
+}
+
+/**
+ * ieee80211_is_erp_rate - Check if a rate is an ERP rate
+ * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
+ * @rate: Transmission rate to check, in 100 kbps
+ *
+ * Check if a given rate is an Extended Rate PHY (ERP) rate.
+ */
+static inline int ieee80211_is_erp_rate(int phymode, int rate)
+{
+ if (phymode == MODE_IEEE80211G) {
+ if (rate != 10 && rate != 20 &&
+ rate != 55 && rate != 110)
+ return 1;
+ }
+ return 0;
+}
+
+static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
+{
+ return compare_ether_addr(raddr, addr) == 0 ||
+ is_broadcast_ether_addr(raddr);
+}
+
+
+/* ieee80211.c */
+int ieee80211_hw_config(struct ieee80211_local *local);
+int ieee80211_if_config(struct net_device *dev);
+int ieee80211_if_config_beacon(struct net_device *dev);
+void ieee80211_prepare_rates(struct ieee80211_local *local,
+ struct ieee80211_hw_mode *mode);
+void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
+int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
+void ieee80211_if_setup(struct net_device *dev);
+struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
+ int phymode, int hwrate);
+
+/* ieee80211_ioctl.c */
+extern const struct iw_handler_def ieee80211_iw_handler_def;
+
+
+/* Least common multiple of the used rates (in 100 kbps). This is used to
+ * calculate rate_inv values for each rate so that only integers are needed. */
+#define CHAN_UTIL_RATE_LCM 95040
+/* 1 usec is 1/8 * (95040/10) = 1188 */
+#define CHAN_UTIL_PER_USEC 1188
+/* Amount of bits to shift the result right to scale the total utilization
+ * to values that will not wrap around 32-bit integers. */
+#define CHAN_UTIL_SHIFT 9
+/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
+ * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
+ * raw value with about 23 should give utilization in 10th of a percentage
+ * (1/1000). However, utilization is only estimated and not all intervals
+ * between frames etc. are calculated. 18 seems to give numbers that are closer
+ * to the real maximum. */
+#define CHAN_UTIL_PER_10MS 18
+#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
+#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
+
+
+/* ieee80211_ioctl.c */
+int ieee80211_set_compression(struct ieee80211_local *local,
+ struct net_device *dev, struct sta_info *sta);
+int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
+/* ieee80211_sta.c */
+void ieee80211_sta_timer(unsigned long data);
+void ieee80211_sta_work(struct work_struct *work);
+void ieee80211_sta_scan_work(struct work_struct *work);
+void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
+ struct ieee80211_rx_status *rx_status);
+int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
+int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
+int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
+int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
+void ieee80211_sta_req_auth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta);
+int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
+void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
+ struct ieee80211_rx_status *rx_status);
+void ieee80211_rx_bss_list_init(struct net_device *dev);
+void ieee80211_rx_bss_list_deinit(struct net_device *dev);
+int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
+struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
+ struct sk_buff *skb, u8 *bssid,
+ u8 *addr);
+int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
+int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
+void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes);
+void ieee80211_reset_erp_info(struct net_device *dev);
+
+/* ieee80211_iface.c */
+int ieee80211_if_add(struct net_device *dev, const char *name,
+ struct net_device **new_dev, int type);
+void ieee80211_if_set_type(struct net_device *dev, int type);
+void ieee80211_if_reinit(struct net_device *dev);
+void __ieee80211_if_del(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata);
+int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
+void ieee80211_if_free(struct net_device *dev);
+void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
+
+/* regdomain.c */
+void ieee80211_regdomain_init(void);
+void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
+
+/* rx handling */
+extern ieee80211_rx_handler ieee80211_rx_pre_handlers[];
+extern ieee80211_rx_handler ieee80211_rx_handlers[];
+
+/* tx handling */
+extern ieee80211_tx_handler ieee80211_tx_handlers[];
+void ieee80211_clear_tx_pending(struct ieee80211_local *local);
+void ieee80211_tx_pending(unsigned long data);
+int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
+int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
+int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
+
+/* utility functions/constants */
+extern void *mac80211_wiphy_privid; /* for wiphy privid */
+extern const unsigned char rfc1042_header[6];
+extern const unsigned char bridge_tunnel_header[6];
+u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len);
+int ieee80211_is_eapol(const struct sk_buff *skb);
+int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
+ int rate, int erp, int short_preamble);
+void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
+ struct ieee80211_hdr *hdr);
+
+#endif /* IEEE80211_I_H */
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/if_arp.h>
+#include <linux/netdevice.h>
+#include <linux/rtnetlink.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "sta_info.h"
+#include "debugfs_netdev.h"
+
+void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata)
+{
+ int i;
+
+ /* Default values for sub-interface parameters */
+ sdata->drop_unencrypted = 0;
+ sdata->eapol = 1;
+ for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
+ skb_queue_head_init(&sdata->fragments[i].skb_list);
+
+ INIT_LIST_HEAD(&sdata->key_list);
+}
+
+static void ieee80211_if_sdata_deinit(struct ieee80211_sub_if_data *sdata)
+{
+ int i;
+
+ for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) {
+ __skb_queue_purge(&sdata->fragments[i].skb_list);
+ }
+}
+
+/* Must be called with rtnl lock held. */
+int ieee80211_if_add(struct net_device *dev, const char *name,
+ struct net_device **new_dev, int type)
+{
+ struct net_device *ndev;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = NULL;
+ int ret;
+
+ ASSERT_RTNL();
+ ndev = alloc_netdev(sizeof(struct ieee80211_sub_if_data),
+ name, ieee80211_if_setup);
+ if (!ndev)
+ return -ENOMEM;
+
+ ret = dev_alloc_name(ndev, ndev->name);
+ if (ret < 0)
+ goto fail;
+
+ memcpy(ndev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
+ ndev->base_addr = dev->base_addr;
+ ndev->irq = dev->irq;
+ ndev->mem_start = dev->mem_start;
+ ndev->mem_end = dev->mem_end;
+ SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy));
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(ndev);
+ ndev->ieee80211_ptr = &sdata->wdev;
+ sdata->wdev.wiphy = local->hw.wiphy;
+ sdata->type = IEEE80211_IF_TYPE_AP;
+ sdata->dev = ndev;
+ sdata->local = local;
+ ieee80211_if_sdata_init(sdata);
+
+ ret = register_netdevice(ndev);
+ if (ret)
+ goto fail;
+
+ ieee80211_debugfs_add_netdev(sdata);
+ ieee80211_if_set_type(ndev, type);
+
+ /* we're under RTNL so all this is fine */
+ if (unlikely(local->reg_state == IEEE80211_DEV_UNREGISTERED)) {
+ __ieee80211_if_del(local, sdata);
+ return -ENODEV;
+ }
+ list_add_tail_rcu(&sdata->list, &local->interfaces);
+
+ if (new_dev)
+ *new_dev = ndev;
+
+ return 0;
+
+fail:
+ free_netdev(ndev);
+ return ret;
+}
+
+void ieee80211_if_set_type(struct net_device *dev, int type)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int oldtype = sdata->type;
+
+ /*
+ * We need to call this function on the master interface
+ * which already has a hard_start_xmit routine assigned
+ * which must not be changed.
+ */
+ if (dev != sdata->local->mdev)
+ dev->hard_start_xmit = ieee80211_subif_start_xmit;
+
+ /*
+ * Called even when register_netdevice fails, it would
+ * oops if assigned before initialising the rest.
+ */
+ dev->uninit = ieee80211_if_reinit;
+
+ /* most have no BSS pointer */
+ sdata->bss = NULL;
+ sdata->type = type;
+
+ switch (type) {
+ case IEEE80211_IF_TYPE_WDS:
+ /* nothing special */
+ break;
+ case IEEE80211_IF_TYPE_VLAN:
+ sdata->u.vlan.ap = NULL;
+ break;
+ case IEEE80211_IF_TYPE_AP:
+ sdata->u.ap.dtim_period = 2;
+ sdata->u.ap.force_unicast_rateidx = -1;
+ sdata->u.ap.max_ratectrl_rateidx = -1;
+ skb_queue_head_init(&sdata->u.ap.ps_bc_buf);
+ sdata->bss = &sdata->u.ap;
+ INIT_LIST_HEAD(&sdata->u.ap.vlans);
+ break;
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS: {
+ struct ieee80211_sub_if_data *msdata;
+ struct ieee80211_if_sta *ifsta;
+
+ ifsta = &sdata->u.sta;
+ INIT_WORK(&ifsta->work, ieee80211_sta_work);
+ setup_timer(&ifsta->timer, ieee80211_sta_timer,
+ (unsigned long) sdata);
+ skb_queue_head_init(&ifsta->skb_queue);
+
+ ifsta->capab = WLAN_CAPABILITY_ESS;
+ ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN |
+ IEEE80211_AUTH_ALG_SHARED_KEY;
+ ifsta->flags |= IEEE80211_STA_CREATE_IBSS |
+ IEEE80211_STA_WMM_ENABLED |
+ IEEE80211_STA_AUTO_BSSID_SEL |
+ IEEE80211_STA_AUTO_CHANNEL_SEL;
+
+ msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev);
+ sdata->bss = &msdata->u.ap;
+ break;
+ }
+ case IEEE80211_IF_TYPE_MNTR:
+ dev->type = ARPHRD_IEEE80211_RADIOTAP;
+ dev->hard_start_xmit = ieee80211_monitor_start_xmit;
+ break;
+ default:
+ printk(KERN_WARNING "%s: %s: Unknown interface type 0x%x",
+ dev->name, __FUNCTION__, type);
+ }
+ ieee80211_debugfs_change_if_type(sdata, oldtype);
+}
+
+/* Must be called with rtnl lock held. */
+void ieee80211_if_reinit(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct sta_info *sta;
+ struct sk_buff *skb;
+
+ ASSERT_RTNL();
+
+ ieee80211_free_keys(sdata);
+
+ ieee80211_if_sdata_deinit(sdata);
+
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_INVALID:
+ /* cannot happen */
+ WARN_ON(1);
+ break;
+ case IEEE80211_IF_TYPE_AP: {
+ /* Remove all virtual interfaces that use this BSS
+ * as their sdata->bss */
+ struct ieee80211_sub_if_data *tsdata, *n;
+
+ list_for_each_entry_safe(tsdata, n, &local->interfaces, list) {
+ if (tsdata != sdata && tsdata->bss == &sdata->u.ap) {
+ printk(KERN_DEBUG "%s: removing virtual "
+ "interface %s because its BSS interface"
+ " is being removed\n",
+ sdata->dev->name, tsdata->dev->name);
+ list_del_rcu(&tsdata->list);
+ /*
+ * We have lots of time and can afford
+ * to sync for each interface
+ */
+ synchronize_rcu();
+ __ieee80211_if_del(local, tsdata);
+ }
+ }
+
+ kfree(sdata->u.ap.beacon_head);
+ kfree(sdata->u.ap.beacon_tail);
+
+ while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
+ local->total_ps_buffered--;
+ dev_kfree_skb(skb);
+ }
+
+ break;
+ }
+ case IEEE80211_IF_TYPE_WDS:
+ sta = sta_info_get(local, sdata->u.wds.remote_addr);
+ if (sta) {
+ sta_info_free(sta);
+ sta_info_put(sta);
+ } else {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: Someone had deleted my STA "
+ "entry for the WDS link\n", dev->name);
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+ }
+ break;
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ kfree(sdata->u.sta.extra_ie);
+ sdata->u.sta.extra_ie = NULL;
+ kfree(sdata->u.sta.assocreq_ies);
+ sdata->u.sta.assocreq_ies = NULL;
+ kfree(sdata->u.sta.assocresp_ies);
+ sdata->u.sta.assocresp_ies = NULL;
+ if (sdata->u.sta.probe_resp) {
+ dev_kfree_skb(sdata->u.sta.probe_resp);
+ sdata->u.sta.probe_resp = NULL;
+ }
+
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ dev->type = ARPHRD_ETHER;
+ break;
+ case IEEE80211_IF_TYPE_VLAN:
+ sdata->u.vlan.ap = NULL;
+ break;
+ }
+
+ /* remove all STAs that are bound to this virtual interface */
+ sta_info_flush(local, dev);
+
+ memset(&sdata->u, 0, sizeof(sdata->u));
+ ieee80211_if_sdata_init(sdata);
+}
+
+/* Must be called with rtnl lock held. */
+void __ieee80211_if_del(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata)
+{
+ struct net_device *dev = sdata->dev;
+
+ ieee80211_debugfs_remove_netdev(sdata);
+ unregister_netdevice(dev);
+ /* Except master interface, the net_device will be freed by
+ * net_device->destructor (i. e. ieee80211_if_free). */
+}
+
+/* Must be called with rtnl lock held. */
+int ieee80211_if_remove(struct net_device *dev, const char *name, int id)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata, *n;
+
+ ASSERT_RTNL();
+
+ list_for_each_entry_safe(sdata, n, &local->interfaces, list) {
+ if ((sdata->type == id || id == -1) &&
+ strcmp(name, sdata->dev->name) == 0 &&
+ sdata->dev != local->mdev) {
+ list_del_rcu(&sdata->list);
+ synchronize_rcu();
+ __ieee80211_if_del(local, sdata);
+ return 0;
+ }
+ }
+ return -ENODEV;
+}
+
+void ieee80211_if_free(struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ ieee80211_if_sdata_deinit(sdata);
+ free_netdev(dev);
+}
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/skbuff.h>
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+#include <linux/wireless.h>
+#include <net/iw_handler.h>
+#include <asm/uaccess.h>
+
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "ieee80211_rate.h"
+#include "wpa.h"
+#include "aes_ccm.h"
+
+
+static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
+ int idx, int alg, int remove,
+ int set_tx_key, const u8 *_key,
+ size_t key_len)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ int ret = 0;
+ struct sta_info *sta;
+ struct ieee80211_key *key;
+ struct ieee80211_sub_if_data *sdata;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
+ printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
+ dev->name, idx);
+ return -EINVAL;
+ }
+
+ if (is_broadcast_ether_addr(sta_addr)) {
+ sta = NULL;
+ key = sdata->keys[idx];
+ } else {
+ set_tx_key = 0;
+ /*
+ * According to the standard, the key index of a pairwise
+ * key must be zero. However, some AP are broken when it
+ * comes to WEP key indices, so we work around this.
+ */
+ if (idx != 0 && alg != ALG_WEP) {
+ printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for "
+ "individual key\n", dev->name);
+ return -EINVAL;
+ }
+
+ sta = sta_info_get(local, sta_addr);
+ if (!sta) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: set_encrypt - unknown addr "
+ MAC_FMT "\n",
+ dev->name, MAC_ARG(sta_addr));
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+
+ return -ENOENT;
+ }
+
+ key = sta->key;
+ }
+
+ if (remove) {
+ ieee80211_key_free(key);
+ key = NULL;
+ } else {
+ /*
+ * Automatically frees any old key if present.
+ */
+ key = ieee80211_key_alloc(sdata, sta, alg, idx, key_len, _key);
+ if (!key) {
+ ret = -ENOMEM;
+ goto err_out;
+ }
+ }
+
+ if (set_tx_key || (!sta && !sdata->default_key && key))
+ ieee80211_set_default_key(sdata, idx);
+
+ ret = 0;
+ err_out:
+ if (sta)
+ sta_info_put(sta);
+ return ret;
+}
+
+static int ieee80211_ioctl_siwgenie(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
+ return -EOPNOTSUPP;
+
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
+ if (ret)
+ return ret;
+ sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
+ ieee80211_sta_req_auth(dev, &sdata->u.sta);
+ return 0;
+ }
+
+ return -EOPNOTSUPP;
+}
+
+static int ieee80211_ioctl_giwname(struct net_device *dev,
+ struct iw_request_info *info,
+ char *name, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ switch (local->hw.conf.phymode) {
+ case MODE_IEEE80211A:
+ strcpy(name, "IEEE 802.11a");
+ break;
+ case MODE_IEEE80211B:
+ strcpy(name, "IEEE 802.11b");
+ break;
+ case MODE_IEEE80211G:
+ strcpy(name, "IEEE 802.11g");
+ break;
+ default:
+ strcpy(name, "IEEE 802.11");
+ break;
+ }
+
+ return 0;
+}
+
+
+static int ieee80211_ioctl_giwrange(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct iw_range *range = (struct iw_range *) extra;
+ struct ieee80211_hw_mode *mode = NULL;
+ int c = 0;
+
+ data->length = sizeof(struct iw_range);
+ memset(range, 0, sizeof(struct iw_range));
+
+ range->we_version_compiled = WIRELESS_EXT;
+ range->we_version_source = 21;
+ range->retry_capa = IW_RETRY_LIMIT;
+ range->retry_flags = IW_RETRY_LIMIT;
+ range->min_retry = 0;
+ range->max_retry = 255;
+ range->min_rts = 0;
+ range->max_rts = 2347;
+ range->min_frag = 256;
+ range->max_frag = 2346;
+
+ range->encoding_size[0] = 5;
+ range->encoding_size[1] = 13;
+ range->num_encoding_sizes = 2;
+ range->max_encoding_tokens = NUM_DEFAULT_KEYS;
+
+ range->max_qual.qual = local->hw.max_signal;
+ range->max_qual.level = local->hw.max_rssi;
+ range->max_qual.noise = local->hw.max_noise;
+ range->max_qual.updated = local->wstats_flags;
+
+ range->avg_qual.qual = local->hw.max_signal/2;
+ range->avg_qual.level = 0;
+ range->avg_qual.noise = 0;
+ range->avg_qual.updated = local->wstats_flags;
+
+ range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
+ IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
+
+ list_for_each_entry(mode, &local->modes_list, list) {
+ int i = 0;
+
+ if (!(local->enabled_modes & (1 << mode->mode)) ||
+ (local->hw_modes & local->enabled_modes &
+ (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
+ continue;
+
+ while (i < mode->num_channels && c < IW_MAX_FREQUENCIES) {
+ struct ieee80211_channel *chan = &mode->channels[i];
+
+ if (chan->flag & IEEE80211_CHAN_W_SCAN) {
+ range->freq[c].i = chan->chan;
+ range->freq[c].m = chan->freq * 100000;
+ range->freq[c].e = 1;
+ c++;
+ }
+ i++;
+ }
+ }
+ range->num_channels = c;
+ range->num_frequency = c;
+
+ IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
+ IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
+ IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
+ IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
+
+ return 0;
+}
+
+
+static int ieee80211_ioctl_siwmode(struct net_device *dev,
+ struct iw_request_info *info,
+ __u32 *mode, char *extra)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int type;
+
+ if (sdata->type == IEEE80211_IF_TYPE_VLAN)
+ return -EOPNOTSUPP;
+
+ switch (*mode) {
+ case IW_MODE_INFRA:
+ type = IEEE80211_IF_TYPE_STA;
+ break;
+ case IW_MODE_ADHOC:
+ type = IEEE80211_IF_TYPE_IBSS;
+ break;
+ case IW_MODE_MONITOR:
+ type = IEEE80211_IF_TYPE_MNTR;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (type == sdata->type)
+ return 0;
+ if (netif_running(dev))
+ return -EBUSY;
+
+ ieee80211_if_reinit(dev);
+ ieee80211_if_set_type(dev, type);
+
+ return 0;
+}
+
+
+static int ieee80211_ioctl_giwmode(struct net_device *dev,
+ struct iw_request_info *info,
+ __u32 *mode, char *extra)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_AP:
+ *mode = IW_MODE_MASTER;
+ break;
+ case IEEE80211_IF_TYPE_STA:
+ *mode = IW_MODE_INFRA;
+ break;
+ case IEEE80211_IF_TYPE_IBSS:
+ *mode = IW_MODE_ADHOC;
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ *mode = IW_MODE_MONITOR;
+ break;
+ case IEEE80211_IF_TYPE_WDS:
+ *mode = IW_MODE_REPEAT;
+ break;
+ case IEEE80211_IF_TYPE_VLAN:
+ *mode = IW_MODE_SECOND; /* FIXME */
+ break;
+ default:
+ *mode = IW_MODE_AUTO;
+ break;
+ }
+ return 0;
+}
+
+int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq)
+{
+ struct ieee80211_hw_mode *mode;
+ int c, set = 0;
+ int ret = -EINVAL;
+
+ list_for_each_entry(mode, &local->modes_list, list) {
+ if (!(local->enabled_modes & (1 << mode->mode)))
+ continue;
+ for (c = 0; c < mode->num_channels; c++) {
+ struct ieee80211_channel *chan = &mode->channels[c];
+ if (chan->flag & IEEE80211_CHAN_W_SCAN &&
+ ((chan->chan == channel) || (chan->freq == freq))) {
+ local->oper_channel = chan;
+ local->oper_hw_mode = mode;
+ set++;
+ }
+ }
+ }
+
+ if (set) {
+ if (local->sta_scanning)
+ ret = 0;
+ else
+ ret = ieee80211_hw_config(local);
+
+ rate_control_clear(local);
+ }
+
+ return ret;
+}
+
+static int ieee80211_ioctl_siwfreq(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_freq *freq, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ if (sdata->type == IEEE80211_IF_TYPE_STA)
+ sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
+
+ /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
+ if (freq->e == 0) {
+ if (freq->m < 0) {
+ if (sdata->type == IEEE80211_IF_TYPE_STA)
+ sdata->u.sta.flags |=
+ IEEE80211_STA_AUTO_CHANNEL_SEL;
+ return 0;
+ } else
+ return ieee80211_set_channel(local, freq->m, -1);
+ } else {
+ int i, div = 1000000;
+ for (i = 0; i < freq->e; i++)
+ div /= 10;
+ if (div > 0)
+ return ieee80211_set_channel(local, -1, freq->m / div);
+ else
+ return -EINVAL;
+ }
+}
+
+
+static int ieee80211_ioctl_giwfreq(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_freq *freq, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ /* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level
+ * driver for the current channel with firmware-based management */
+
+ freq->m = local->hw.conf.freq;
+ freq->e = 6;
+
+ return 0;
+}
+
+
+static int ieee80211_ioctl_siwessid(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *ssid)
+{
+ struct ieee80211_sub_if_data *sdata;
+ size_t len = data->length;
+
+ /* iwconfig uses nul termination in SSID.. */
+ if (len > 0 && ssid[len - 1] == '\0')
+ len--;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ int ret;
+ if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
+ if (len > IEEE80211_MAX_SSID_LEN)
+ return -EINVAL;
+ memcpy(sdata->u.sta.ssid, ssid, len);
+ sdata->u.sta.ssid_len = len;
+ return 0;
+ }
+ if (data->flags)
+ sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
+ else
+ sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
+ ret = ieee80211_sta_set_ssid(dev, ssid, len);
+ if (ret)
+ return ret;
+ ieee80211_sta_req_auth(dev, &sdata->u.sta);
+ return 0;
+ }
+
+ if (sdata->type == IEEE80211_IF_TYPE_AP) {
+ memcpy(sdata->u.ap.ssid, ssid, len);
+ memset(sdata->u.ap.ssid + len, 0,
+ IEEE80211_MAX_SSID_LEN - len);
+ sdata->u.ap.ssid_len = len;
+ return ieee80211_if_config(dev);
+ }
+ return -EOPNOTSUPP;
+}
+
+
+static int ieee80211_ioctl_giwessid(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *ssid)
+{
+ size_t len;
+
+ struct ieee80211_sub_if_data *sdata;
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ int res = ieee80211_sta_get_ssid(dev, ssid, &len);
+ if (res == 0) {
+ data->length = len;
+ data->flags = 1;
+ } else
+ data->flags = 0;
+ return res;
+ }
+
+ if (sdata->type == IEEE80211_IF_TYPE_AP) {
+ len = sdata->u.ap.ssid_len;
+ if (len > IW_ESSID_MAX_SIZE)
+ len = IW_ESSID_MAX_SIZE;
+ memcpy(ssid, sdata->u.ap.ssid, len);
+ data->length = len;
+ data->flags = 1;
+ return 0;
+ }
+ return -EOPNOTSUPP;
+}
+
+
+static int ieee80211_ioctl_siwap(struct net_device *dev,
+ struct iw_request_info *info,
+ struct sockaddr *ap_addr, char *extra)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ int ret;
+ if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
+ memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
+ ETH_ALEN);
+ return 0;
+ }
+ if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
+ sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
+ IEEE80211_STA_AUTO_CHANNEL_SEL;
+ else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
+ sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
+ else
+ sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
+ ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
+ if (ret)
+ return ret;
+ ieee80211_sta_req_auth(dev, &sdata->u.sta);
+ return 0;
+ } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
+ if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
+ ETH_ALEN) == 0)
+ return 0;
+ return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data);
+ }
+
+ return -EOPNOTSUPP;
+}
+
+
+static int ieee80211_ioctl_giwap(struct net_device *dev,
+ struct iw_request_info *info,
+ struct sockaddr *ap_addr, char *extra)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ ap_addr->sa_family = ARPHRD_ETHER;
+ memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
+ return 0;
+ } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
+ ap_addr->sa_family = ARPHRD_ETHER;
+ memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
+ return 0;
+ }
+
+ return -EOPNOTSUPP;
+}
+
+
+static int ieee80211_ioctl_siwscan(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ u8 *ssid = NULL;
+ size_t ssid_len = 0;
+
+ if (!netif_running(dev))
+ return -ENETDOWN;
+
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
+ ssid = sdata->u.sta.ssid;
+ ssid_len = sdata->u.sta.ssid_len;
+ }
+ break;
+ case IEEE80211_IF_TYPE_AP:
+ if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
+ ssid = sdata->u.ap.ssid;
+ ssid_len = sdata->u.ap.ssid_len;
+ }
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return ieee80211_sta_req_scan(dev, ssid, ssid_len);
+}
+
+
+static int ieee80211_ioctl_giwscan(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra)
+{
+ int res;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ if (local->sta_scanning)
+ return -EAGAIN;
+ res = ieee80211_sta_scan_results(dev, extra, data->length);
+ if (res >= 0) {
+ data->length = res;
+ return 0;
+ }
+ data->length = 0;
+ return res;
+}
+
+
+static int ieee80211_ioctl_siwrate(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *rate, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw_mode *mode;
+ int i;
+ u32 target_rate = rate->value / 100000;
+ struct ieee80211_sub_if_data *sdata;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (!sdata->bss)
+ return -ENODEV;
+ mode = local->oper_hw_mode;
+ /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
+ * target_rate = X, rate->fixed = 1 means only rate X
+ * target_rate = X, rate->fixed = 0 means all rates <= X */
+ sdata->bss->max_ratectrl_rateidx = -1;
+ sdata->bss->force_unicast_rateidx = -1;
+ if (rate->value < 0)
+ return 0;
+ for (i=0; i< mode->num_rates; i++) {
+ struct ieee80211_rate *rates = &mode->rates[i];
+ int this_rate = rates->rate;
+
+ if (target_rate == this_rate) {
+ sdata->bss->max_ratectrl_rateidx = i;
+ if (rate->fixed)
+ sdata->bss->force_unicast_rateidx = i;
+ break;
+ }
+ }
+ return 0;
+}
+
+static int ieee80211_ioctl_giwrate(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *rate, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
+ struct ieee80211_sub_if_data *sdata;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type == IEEE80211_IF_TYPE_STA)
+ sta = sta_info_get(local, sdata->u.sta.bssid);
+ else
+ return -EOPNOTSUPP;
+ if (!sta)
+ return -ENODEV;
+ if (sta->txrate < local->oper_hw_mode->num_rates)
+ rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000;
+ else
+ rate->value = 0;
+ sta_info_put(sta);
+ return 0;
+}
+
+static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *data, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ bool need_reconfig = 0;
+
+ if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
+ return -EINVAL;
+ if (data->txpower.flags & IW_TXPOW_RANGE)
+ return -EINVAL;
+ if (!data->txpower.fixed)
+ return -EINVAL;
+
+ if (local->hw.conf.power_level != data->txpower.value) {
+ local->hw.conf.power_level = data->txpower.value;
+ need_reconfig = 1;
+ }
+ if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
+ local->hw.conf.radio_enabled = !(data->txpower.disabled);
+ need_reconfig = 1;
+ }
+ if (need_reconfig) {
+ ieee80211_hw_config(local);
+ /* The return value of hw_config is not of big interest here,
+ * as it doesn't say that it failed because of _this_ config
+ * change or something else. Ignore it. */
+ }
+
+ return 0;
+}
+
+static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
+ struct iw_request_info *info,
+ union iwreq_data *data, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ data->txpower.fixed = 1;
+ data->txpower.disabled = !(local->hw.conf.radio_enabled);
+ data->txpower.value = local->hw.conf.power_level;
+ data->txpower.flags = IW_TXPOW_DBM;
+
+ return 0;
+}
+
+static int ieee80211_ioctl_siwrts(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *rts, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ if (rts->disabled)
+ local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
+ else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
+ return -EINVAL;
+ else
+ local->rts_threshold = rts->value;
+
+ /* If the wlan card performs RTS/CTS in hardware/firmware,
+ * configure it here */
+
+ if (local->ops->set_rts_threshold)
+ local->ops->set_rts_threshold(local_to_hw(local),
+ local->rts_threshold);
+
+ return 0;
+}
+
+static int ieee80211_ioctl_giwrts(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *rts, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ rts->value = local->rts_threshold;
+ rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
+ rts->fixed = 1;
+
+ return 0;
+}
+
+
+static int ieee80211_ioctl_siwfrag(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *frag, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ if (frag->disabled)
+ local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
+ else if (frag->value < 256 ||
+ frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
+ return -EINVAL;
+ else {
+ /* Fragment length must be even, so strip LSB. */
+ local->fragmentation_threshold = frag->value & ~0x1;
+ }
+
+ /* If the wlan card performs fragmentation in hardware/firmware,
+ * configure it here */
+
+ if (local->ops->set_frag_threshold)
+ local->ops->set_frag_threshold(
+ local_to_hw(local),
+ local->fragmentation_threshold);
+
+ return 0;
+}
+
+static int ieee80211_ioctl_giwfrag(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *frag, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ frag->value = local->fragmentation_threshold;
+ frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
+ frag->fixed = 1;
+
+ return 0;
+}
+
+
+static int ieee80211_ioctl_siwretry(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *retry, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ if (retry->disabled ||
+ (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
+ return -EINVAL;
+
+ if (retry->flags & IW_RETRY_MAX)
+ local->long_retry_limit = retry->value;
+ else if (retry->flags & IW_RETRY_MIN)
+ local->short_retry_limit = retry->value;
+ else {
+ local->long_retry_limit = retry->value;
+ local->short_retry_limit = retry->value;
+ }
+
+ if (local->ops->set_retry_limit) {
+ return local->ops->set_retry_limit(
+ local_to_hw(local),
+ local->short_retry_limit,
+ local->long_retry_limit);
+ }
+
+ return 0;
+}
+
+
+static int ieee80211_ioctl_giwretry(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *retry, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ retry->disabled = 0;
+ if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
+ /* first return min value, iwconfig will ask max value
+ * later if needed */
+ retry->flags |= IW_RETRY_LIMIT;
+ retry->value = local->short_retry_limit;
+ if (local->long_retry_limit != local->short_retry_limit)
+ retry->flags |= IW_RETRY_MIN;
+ return 0;
+ }
+ if (retry->flags & IW_RETRY_MAX) {
+ retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
+ retry->value = local->long_retry_limit;
+ }
+
+ return 0;
+}
+
+static int ieee80211_ioctl_siwmlme(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *data, char *extra)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct iw_mlme *mlme = (struct iw_mlme *) extra;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type != IEEE80211_IF_TYPE_STA &&
+ sdata->type != IEEE80211_IF_TYPE_IBSS)
+ return -EINVAL;
+
+ switch (mlme->cmd) {
+ case IW_MLME_DEAUTH:
+ /* TODO: mlme->addr.sa_data */
+ return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
+ case IW_MLME_DISASSOC:
+ /* TODO: mlme->addr.sa_data */
+ return ieee80211_sta_disassociate(dev, mlme->reason_code);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+
+static int ieee80211_ioctl_siwencode(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *erq, char *keybuf)
+{
+ struct ieee80211_sub_if_data *sdata;
+ int idx, i, alg = ALG_WEP;
+ u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+ int remove = 0;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ idx = erq->flags & IW_ENCODE_INDEX;
+ if (idx == 0) {
+ if (sdata->default_key)
+ for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
+ if (sdata->default_key == sdata->keys[i]) {
+ idx = i;
+ break;
+ }
+ }
+ } else if (idx < 1 || idx > 4)
+ return -EINVAL;
+ else
+ idx--;
+
+ if (erq->flags & IW_ENCODE_DISABLED)
+ remove = 1;
+ else if (erq->length == 0) {
+ /* No key data - just set the default TX key index */
+ ieee80211_set_default_key(sdata, idx);
+ return 0;
+ }
+
+ return ieee80211_set_encryption(
+ dev, bcaddr,
+ idx, alg, remove,
+ !sdata->default_key,
+ keybuf, erq->length);
+}
+
+
+static int ieee80211_ioctl_giwencode(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *erq, char *key)
+{
+ struct ieee80211_sub_if_data *sdata;
+ int idx, i;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ idx = erq->flags & IW_ENCODE_INDEX;
+ if (idx < 1 || idx > 4) {
+ idx = -1;
+ if (!sdata->default_key)
+ idx = 0;
+ else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
+ if (sdata->default_key == sdata->keys[i]) {
+ idx = i;
+ break;
+ }
+ }
+ if (idx < 0)
+ return -EINVAL;
+ } else
+ idx--;
+
+ erq->flags = idx + 1;
+
+ if (!sdata->keys[idx]) {
+ erq->length = 0;
+ erq->flags |= IW_ENCODE_DISABLED;
+ return 0;
+ }
+
+ memcpy(key, sdata->keys[idx]->conf.key,
+ min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
+ erq->length = sdata->keys[idx]->conf.keylen;
+ erq->flags |= IW_ENCODE_ENABLED;
+
+ return 0;
+}
+
+static int ieee80211_ioctl_siwauth(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *data, char *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int ret = 0;
+
+ switch (data->flags & IW_AUTH_INDEX) {
+ case IW_AUTH_WPA_VERSION:
+ case IW_AUTH_CIPHER_PAIRWISE:
+ case IW_AUTH_CIPHER_GROUP:
+ case IW_AUTH_WPA_ENABLED:
+ case IW_AUTH_RX_UNENCRYPTED_EAPOL:
+ break;
+ case IW_AUTH_KEY_MGMT:
+ if (sdata->type != IEEE80211_IF_TYPE_STA)
+ ret = -EINVAL;
+ else {
+ /*
+ * Key management was set by wpa_supplicant,
+ * we only need this to associate to a network
+ * that has privacy enabled regardless of not
+ * having a key.
+ */
+ sdata->u.sta.key_management_enabled = !!data->value;
+ }
+ break;
+ case IW_AUTH_80211_AUTH_ALG:
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS)
+ sdata->u.sta.auth_algs = data->value;
+ else
+ ret = -EOPNOTSUPP;
+ break;
+ case IW_AUTH_PRIVACY_INVOKED:
+ if (local->ops->set_privacy_invoked)
+ ret = local->ops->set_privacy_invoked(
+ local_to_hw(local), data->value);
+ break;
+ default:
+ ret = -EOPNOTSUPP;
+ break;
+ }
+ return ret;
+}
+
+/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
+static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct iw_statistics *wstats = &local->wstats;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct sta_info *sta = NULL;
+
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS)
+ sta = sta_info_get(local, sdata->u.sta.bssid);
+ if (!sta) {
+ wstats->discard.fragment = 0;
+ wstats->discard.misc = 0;
+ wstats->qual.qual = 0;
+ wstats->qual.level = 0;
+ wstats->qual.noise = 0;
+ wstats->qual.updated = IW_QUAL_ALL_INVALID;
+ } else {
+ wstats->qual.level = sta->last_rssi;
+ wstats->qual.qual = sta->last_signal;
+ wstats->qual.noise = sta->last_noise;
+ wstats->qual.updated = local->wstats_flags;
+ sta_info_put(sta);
+ }
+ return wstats;
+}
+
+static int ieee80211_ioctl_giwauth(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_param *data, char *extra)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int ret = 0;
+
+ switch (data->flags & IW_AUTH_INDEX) {
+ case IW_AUTH_80211_AUTH_ALG:
+ if (sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS)
+ data->value = sdata->u.sta.auth_algs;
+ else
+ ret = -EOPNOTSUPP;
+ break;
+ default:
+ ret = -EOPNOTSUPP;
+ break;
+ }
+ return ret;
+}
+
+
+static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
+ struct iw_request_info *info,
+ struct iw_point *erq, char *extra)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
+ int uninitialized_var(alg), idx, i, remove = 0;
+
+ switch (ext->alg) {
+ case IW_ENCODE_ALG_NONE:
+ remove = 1;
+ break;
+ case IW_ENCODE_ALG_WEP:
+ alg = ALG_WEP;
+ break;
+ case IW_ENCODE_ALG_TKIP:
+ alg = ALG_TKIP;
+ break;
+ case IW_ENCODE_ALG_CCMP:
+ alg = ALG_CCMP;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ if (erq->flags & IW_ENCODE_DISABLED)
+ remove = 1;
+
+ idx = erq->flags & IW_ENCODE_INDEX;
+ if (idx < 1 || idx > 4) {
+ idx = -1;
+ if (!sdata->default_key)
+ idx = 0;
+ else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
+ if (sdata->default_key == sdata->keys[i]) {
+ idx = i;
+ break;
+ }
+ }
+ if (idx < 0)
+ return -EINVAL;
+ } else
+ idx--;
+
+ return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
+ remove,
+ ext->ext_flags &
+ IW_ENCODE_EXT_SET_TX_KEY,
+ ext->key, ext->key_len);
+}
+
+
+/* Structures to export the Wireless Handlers */
+
+static const iw_handler ieee80211_handler[] =
+{
+ (iw_handler) NULL, /* SIOCSIWCOMMIT */
+ (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */
+ (iw_handler) NULL, /* SIOCSIWNWID */
+ (iw_handler) NULL, /* SIOCGIWNWID */
+ (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
+ (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
+ (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */
+ (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */
+ (iw_handler) NULL, /* SIOCSIWSENS */
+ (iw_handler) NULL, /* SIOCGIWSENS */
+ (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
+ (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */
+ (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
+ (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
+ (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
+ (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
+ (iw_handler) NULL, /* SIOCSIWSPY */
+ (iw_handler) NULL, /* SIOCGIWSPY */
+ (iw_handler) NULL, /* SIOCSIWTHRSPY */
+ (iw_handler) NULL, /* SIOCGIWTHRSPY */
+ (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
+ (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
+ (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */
+ (iw_handler) NULL, /* SIOCGIWAPLIST */
+ (iw_handler) ieee80211_ioctl_siwscan, /* SIOCSIWSCAN */
+ (iw_handler) ieee80211_ioctl_giwscan, /* SIOCGIWSCAN */
+ (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
+ (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
+ (iw_handler) NULL, /* SIOCSIWNICKN */
+ (iw_handler) NULL, /* SIOCGIWNICKN */
+ (iw_handler) NULL, /* -- hole -- */
+ (iw_handler) NULL, /* -- hole -- */
+ (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */
+ (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */
+ (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */
+ (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */
+ (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */
+ (iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */
+ (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */
+ (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */
+ (iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */
+ (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */
+ (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
+ (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */
+ (iw_handler) NULL, /* SIOCSIWPOWER */
+ (iw_handler) NULL, /* SIOCGIWPOWER */
+ (iw_handler) NULL, /* -- hole -- */
+ (iw_handler) NULL, /* -- hole -- */
+ (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
+ (iw_handler) NULL, /* SIOCGIWGENIE */
+ (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
+ (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
+ (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */
+ (iw_handler) NULL, /* SIOCGIWENCODEEXT */
+ (iw_handler) NULL, /* SIOCSIWPMKSA */
+ (iw_handler) NULL, /* -- hole -- */
+};
+
+const struct iw_handler_def ieee80211_iw_handler_def =
+{
+ .num_standard = ARRAY_SIZE(ieee80211_handler),
+ .standard = (iw_handler *) ieee80211_handler,
+ .get_wireless_stats = ieee80211_get_wireless_stats,
+};
--- /dev/null
+/*
+ * Copyright 2002-2004, Instant802 Networks, Inc.
+ * Copyright 2005, Devicescape Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef IEEE80211_KEY_H
+#define IEEE80211_KEY_H
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/crypto.h>
+#include <net/mac80211.h>
+
+/* ALG_TKIP
+ * struct ieee80211_key::key is encoded as a 256-bit (32 byte) data block:
+ * Temporal Encryption Key (128 bits)
+ * Temporal Authenticator Tx MIC Key (64 bits)
+ * Temporal Authenticator Rx MIC Key (64 bits)
+ */
+
+#define WEP_IV_LEN 4
+#define WEP_ICV_LEN 4
+
+#define ALG_TKIP_KEY_LEN 32
+/* Starting offsets for each key */
+#define ALG_TKIP_TEMP_ENCR_KEY 0
+#define ALG_TKIP_TEMP_AUTH_TX_MIC_KEY 16
+#define ALG_TKIP_TEMP_AUTH_RX_MIC_KEY 24
+#define TKIP_IV_LEN 8
+#define TKIP_ICV_LEN 4
+
+#define ALG_CCMP_KEY_LEN 16
+#define CCMP_HDR_LEN 8
+#define CCMP_MIC_LEN 8
+#define CCMP_TK_LEN 16
+#define CCMP_PN_LEN 6
+
+#define NUM_RX_DATA_QUEUES 17
+
+struct ieee80211_local;
+struct ieee80211_sub_if_data;
+struct sta_info;
+
+#define KEY_FLAG_UPLOADED_TO_HARDWARE (1<<0)
+
+struct ieee80211_key {
+ struct ieee80211_local *local;
+ struct ieee80211_sub_if_data *sdata;
+ struct sta_info *sta;
+
+ struct list_head list;
+
+ unsigned int flags;
+
+ union {
+ struct {
+ /* last used TSC */
+ u32 iv32;
+ u16 iv16;
+ u16 p1k[5];
+ int tx_initialized;
+
+ /* last received RSC */
+ u32 iv32_rx[NUM_RX_DATA_QUEUES];
+ u16 iv16_rx[NUM_RX_DATA_QUEUES];
+ u16 p1k_rx[NUM_RX_DATA_QUEUES][5];
+ int rx_initialized[NUM_RX_DATA_QUEUES];
+ } tkip;
+ struct {
+ u8 tx_pn[6];
+ u8 rx_pn[NUM_RX_DATA_QUEUES][6];
+ struct crypto_cipher *tfm;
+ u32 replays; /* dot11RSNAStatsCCMPReplays */
+ /* scratch buffers for virt_to_page() (crypto API) */
+#ifndef AES_BLOCK_LEN
+#define AES_BLOCK_LEN 16
+#endif
+ u8 tx_crypto_buf[6 * AES_BLOCK_LEN];
+ u8 rx_crypto_buf[6 * AES_BLOCK_LEN];
+ } ccmp;
+ } u;
+
+ /* number of times this key has been used */
+ int tx_rx_count;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct {
+ struct dentry *stalink;
+ struct dentry *dir;
+ struct dentry *keylen;
+ struct dentry *flags;
+ struct dentry *keyidx;
+ struct dentry *hw_key_idx;
+ struct dentry *tx_rx_count;
+ struct dentry *algorithm;
+ struct dentry *tx_spec;
+ struct dentry *rx_spec;
+ struct dentry *replays;
+ struct dentry *key;
+ struct dentry *ifindex;
+ } debugfs;
+#endif
+
+ /*
+ * key config, must be last because it contains key
+ * material as variable length member
+ */
+ struct ieee80211_key_conf conf;
+};
+
+struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta,
+ enum ieee80211_key_alg alg,
+ int idx,
+ size_t key_len,
+ const u8 *key_data);
+void ieee80211_key_free(struct ieee80211_key *key);
+void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx);
+void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata);
+void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata);
+void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata);
+
+#endif /* IEEE80211_KEY_H */
--- /dev/null
+/*
+ * Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* just for IFNAMSIZ */
+#include <linux/if.h>
+#include "ieee80211_led.h"
+
+void ieee80211_led_rx(struct ieee80211_local *local)
+{
+ if (unlikely(!local->rx_led))
+ return;
+ if (local->rx_led_counter++ % 2 == 0)
+ led_trigger_event(local->rx_led, LED_OFF);
+ else
+ led_trigger_event(local->rx_led, LED_FULL);
+}
+
+/* q is 1 if a packet was enqueued, 0 if it has been transmitted */
+void ieee80211_led_tx(struct ieee80211_local *local, int q)
+{
+ if (unlikely(!local->tx_led))
+ return;
+ /* not sure how this is supposed to work ... */
+ local->tx_led_counter += 2*q-1;
+ if (local->tx_led_counter % 2 == 0)
+ led_trigger_event(local->tx_led, LED_OFF);
+ else
+ led_trigger_event(local->tx_led, LED_FULL);
+}
+
+void ieee80211_led_assoc(struct ieee80211_local *local, bool associated)
+{
+ if (unlikely(!local->assoc_led))
+ return;
+ if (associated)
+ led_trigger_event(local->assoc_led, LED_FULL);
+ else
+ led_trigger_event(local->assoc_led, LED_OFF);
+}
+
+void ieee80211_led_init(struct ieee80211_local *local)
+{
+ local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
+ if (local->rx_led) {
+ snprintf(local->rx_led_name, sizeof(local->rx_led_name),
+ "%srx", wiphy_name(local->hw.wiphy));
+ local->rx_led->name = local->rx_led_name;
+ if (led_trigger_register(local->rx_led)) {
+ kfree(local->rx_led);
+ local->rx_led = NULL;
+ }
+ }
+
+ local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
+ if (local->tx_led) {
+ snprintf(local->tx_led_name, sizeof(local->tx_led_name),
+ "%stx", wiphy_name(local->hw.wiphy));
+ local->tx_led->name = local->tx_led_name;
+ if (led_trigger_register(local->tx_led)) {
+ kfree(local->tx_led);
+ local->tx_led = NULL;
+ }
+ }
+
+ local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
+ if (local->assoc_led) {
+ snprintf(local->assoc_led_name, sizeof(local->assoc_led_name),
+ "%sassoc", wiphy_name(local->hw.wiphy));
+ local->assoc_led->name = local->assoc_led_name;
+ if (led_trigger_register(local->assoc_led)) {
+ kfree(local->assoc_led);
+ local->assoc_led = NULL;
+ }
+ }
+}
+
+void ieee80211_led_exit(struct ieee80211_local *local)
+{
+ if (local->assoc_led) {
+ led_trigger_unregister(local->assoc_led);
+ kfree(local->assoc_led);
+ }
+ if (local->tx_led) {
+ led_trigger_unregister(local->tx_led);
+ kfree(local->tx_led);
+ }
+ if (local->rx_led) {
+ led_trigger_unregister(local->rx_led);
+ kfree(local->rx_led);
+ }
+}
+
+char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ if (local->assoc_led)
+ return local->assoc_led_name;
+ return NULL;
+}
+EXPORT_SYMBOL(__ieee80211_get_assoc_led_name);
+
+char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ if (local->tx_led)
+ return local->tx_led_name;
+ return NULL;
+}
+EXPORT_SYMBOL(__ieee80211_get_tx_led_name);
+
+char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ if (local->rx_led)
+ return local->rx_led_name;
+ return NULL;
+}
+EXPORT_SYMBOL(__ieee80211_get_rx_led_name);
--- /dev/null
+/*
+ * Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/leds.h>
+#include "ieee80211_i.h"
+
+#ifdef CONFIG_MAC80211_LEDS
+extern void ieee80211_led_rx(struct ieee80211_local *local);
+extern void ieee80211_led_tx(struct ieee80211_local *local, int q);
+extern void ieee80211_led_assoc(struct ieee80211_local *local,
+ bool associated);
+extern void ieee80211_led_init(struct ieee80211_local *local);
+extern void ieee80211_led_exit(struct ieee80211_local *local);
+#else
+static inline void ieee80211_led_rx(struct ieee80211_local *local)
+{
+}
+static inline void ieee80211_led_tx(struct ieee80211_local *local, int q)
+{
+}
+static inline void ieee80211_led_assoc(struct ieee80211_local *local,
+ bool associated)
+{
+}
+static inline void ieee80211_led_init(struct ieee80211_local *local)
+{
+}
+static inline void ieee80211_led_exit(struct ieee80211_local *local)
+{
+}
+#endif
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/rtnetlink.h>
+#include "ieee80211_rate.h"
+#include "ieee80211_i.h"
+
+struct rate_control_alg {
+ struct list_head list;
+ struct rate_control_ops *ops;
+};
+
+static LIST_HEAD(rate_ctrl_algs);
+static DEFINE_MUTEX(rate_ctrl_mutex);
+
+int ieee80211_rate_control_register(struct rate_control_ops *ops)
+{
+ struct rate_control_alg *alg;
+
+ alg = kzalloc(sizeof(*alg), GFP_KERNEL);
+ if (alg == NULL) {
+ return -ENOMEM;
+ }
+ alg->ops = ops;
+
+ mutex_lock(&rate_ctrl_mutex);
+ list_add_tail(&alg->list, &rate_ctrl_algs);
+ mutex_unlock(&rate_ctrl_mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_rate_control_register);
+
+void ieee80211_rate_control_unregister(struct rate_control_ops *ops)
+{
+ struct rate_control_alg *alg;
+
+ mutex_lock(&rate_ctrl_mutex);
+ list_for_each_entry(alg, &rate_ctrl_algs, list) {
+ if (alg->ops == ops) {
+ list_del(&alg->list);
+ break;
+ }
+ }
+ mutex_unlock(&rate_ctrl_mutex);
+ kfree(alg);
+}
+EXPORT_SYMBOL(ieee80211_rate_control_unregister);
+
+static struct rate_control_ops *
+ieee80211_try_rate_control_ops_get(const char *name)
+{
+ struct rate_control_alg *alg;
+ struct rate_control_ops *ops = NULL;
+
+ mutex_lock(&rate_ctrl_mutex);
+ list_for_each_entry(alg, &rate_ctrl_algs, list) {
+ if (!name || !strcmp(alg->ops->name, name))
+ if (try_module_get(alg->ops->module)) {
+ ops = alg->ops;
+ break;
+ }
+ }
+ mutex_unlock(&rate_ctrl_mutex);
+ return ops;
+}
+
+/* Get the rate control algorithm. If `name' is NULL, get the first
+ * available algorithm. */
+static struct rate_control_ops *
+ieee80211_rate_control_ops_get(const char *name)
+{
+ struct rate_control_ops *ops;
+
+ ops = ieee80211_try_rate_control_ops_get(name);
+ if (!ops) {
+ request_module("rc80211_%s", name ? name : "default");
+ ops = ieee80211_try_rate_control_ops_get(name);
+ }
+ return ops;
+}
+
+static void ieee80211_rate_control_ops_put(struct rate_control_ops *ops)
+{
+ module_put(ops->module);
+}
+
+struct rate_control_ref *rate_control_alloc(const char *name,
+ struct ieee80211_local *local)
+{
+ struct rate_control_ref *ref;
+
+ ref = kmalloc(sizeof(struct rate_control_ref), GFP_KERNEL);
+ if (!ref)
+ goto fail_ref;
+ kref_init(&ref->kref);
+ ref->ops = ieee80211_rate_control_ops_get(name);
+ if (!ref->ops)
+ goto fail_ops;
+ ref->priv = ref->ops->alloc(local);
+ if (!ref->priv)
+ goto fail_priv;
+ return ref;
+
+fail_priv:
+ ieee80211_rate_control_ops_put(ref->ops);
+fail_ops:
+ kfree(ref);
+fail_ref:
+ return NULL;
+}
+
+static void rate_control_release(struct kref *kref)
+{
+ struct rate_control_ref *ctrl_ref;
+
+ ctrl_ref = container_of(kref, struct rate_control_ref, kref);
+ ctrl_ref->ops->free(ctrl_ref->priv);
+ ieee80211_rate_control_ops_put(ctrl_ref->ops);
+ kfree(ctrl_ref);
+}
+
+struct rate_control_ref *rate_control_get(struct rate_control_ref *ref)
+{
+ kref_get(&ref->kref);
+ return ref;
+}
+
+void rate_control_put(struct rate_control_ref *ref)
+{
+ kref_put(&ref->kref, rate_control_release);
+}
+
+int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
+ const char *name)
+{
+ struct rate_control_ref *ref, *old;
+
+ ASSERT_RTNL();
+ if (local->open_count || netif_running(local->mdev))
+ return -EBUSY;
+
+ ref = rate_control_alloc(name, local);
+ if (!ref) {
+ printk(KERN_WARNING "%s: Failed to select rate control "
+ "algorithm\n", wiphy_name(local->hw.wiphy));
+ return -ENOENT;
+ }
+
+ old = local->rate_ctrl;
+ local->rate_ctrl = ref;
+ if (old) {
+ rate_control_put(old);
+ sta_info_flush(local, NULL);
+ }
+
+ printk(KERN_DEBUG "%s: Selected rate control "
+ "algorithm '%s'\n", wiphy_name(local->hw.wiphy),
+ ref->ops->name);
+
+
+ return 0;
+}
+
+void rate_control_deinitialize(struct ieee80211_local *local)
+{
+ struct rate_control_ref *ref;
+
+ ref = local->rate_ctrl;
+ local->rate_ctrl = NULL;
+ rate_control_put(ref);
+}
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005, Devicescape Software, Inc.
+ * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef IEEE80211_RATE_H
+#define IEEE80211_RATE_H
+
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/types.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "sta_info.h"
+
+#define RATE_CONTROL_NUM_DOWN 20
+#define RATE_CONTROL_NUM_UP 15
+
+
+struct rate_control_extra {
+ /* values from rate_control_get_rate() to the caller: */
+ struct ieee80211_rate *probe; /* probe with this rate, or NULL for no
+ * probing */
+ struct ieee80211_rate *nonerp;
+
+ /* parameters from the caller to rate_control_get_rate(): */
+ struct ieee80211_hw_mode *mode;
+ u16 ethertype;
+};
+
+
+struct rate_control_ops {
+ struct module *module;
+ const char *name;
+ void (*tx_status)(void *priv, struct net_device *dev,
+ struct sk_buff *skb,
+ struct ieee80211_tx_status *status);
+ struct ieee80211_rate *(*get_rate)(void *priv, struct net_device *dev,
+ struct sk_buff *skb,
+ struct rate_control_extra *extra);
+ void (*rate_init)(void *priv, void *priv_sta,
+ struct ieee80211_local *local, struct sta_info *sta);
+ void (*clear)(void *priv);
+
+ void *(*alloc)(struct ieee80211_local *local);
+ void (*free)(void *priv);
+ void *(*alloc_sta)(void *priv, gfp_t gfp);
+ void (*free_sta)(void *priv, void *priv_sta);
+
+ int (*add_attrs)(void *priv, struct kobject *kobj);
+ void (*remove_attrs)(void *priv, struct kobject *kobj);
+ void (*add_sta_debugfs)(void *priv, void *priv_sta,
+ struct dentry *dir);
+ void (*remove_sta_debugfs)(void *priv, void *priv_sta);
+};
+
+struct rate_control_ref {
+ struct rate_control_ops *ops;
+ void *priv;
+ struct kref kref;
+};
+
+int ieee80211_rate_control_register(struct rate_control_ops *ops);
+void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
+
+/* Get a reference to the rate control algorithm. If `name' is NULL, get the
+ * first available algorithm. */
+struct rate_control_ref *rate_control_alloc(const char *name,
+ struct ieee80211_local *local);
+struct rate_control_ref *rate_control_get(struct rate_control_ref *ref);
+void rate_control_put(struct rate_control_ref *ref);
+
+static inline void rate_control_tx_status(struct ieee80211_local *local,
+ struct net_device *dev,
+ struct sk_buff *skb,
+ struct ieee80211_tx_status *status)
+{
+ struct rate_control_ref *ref = local->rate_ctrl;
+ ref->ops->tx_status(ref->priv, dev, skb, status);
+}
+
+
+static inline struct ieee80211_rate *
+rate_control_get_rate(struct ieee80211_local *local, struct net_device *dev,
+ struct sk_buff *skb, struct rate_control_extra *extra)
+{
+ struct rate_control_ref *ref = local->rate_ctrl;
+ return ref->ops->get_rate(ref->priv, dev, skb, extra);
+}
+
+
+static inline void rate_control_rate_init(struct sta_info *sta,
+ struct ieee80211_local *local)
+{
+ struct rate_control_ref *ref = sta->rate_ctrl;
+ ref->ops->rate_init(ref->priv, sta->rate_ctrl_priv, local, sta);
+}
+
+
+static inline void rate_control_clear(struct ieee80211_local *local)
+{
+ struct rate_control_ref *ref = local->rate_ctrl;
+ ref->ops->clear(ref->priv);
+}
+
+static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
+ gfp_t gfp)
+{
+ return ref->ops->alloc_sta(ref->priv, gfp);
+}
+
+static inline void rate_control_free_sta(struct rate_control_ref *ref,
+ void *priv)
+{
+ ref->ops->free_sta(ref->priv, priv);
+}
+
+static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
+{
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct rate_control_ref *ref = sta->rate_ctrl;
+ if (sta->debugfs.dir && ref->ops->add_sta_debugfs)
+ ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
+ sta->debugfs.dir);
+#endif
+}
+
+static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
+{
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct rate_control_ref *ref = sta->rate_ctrl;
+ if (ref->ops->remove_sta_debugfs)
+ ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
+#endif
+}
+
+
+/* functions for rate control related to a device */
+int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
+ const char *name);
+void rate_control_deinitialize(struct ieee80211_local *local);
+
+#endif /* IEEE80211_RATE_H */
--- /dev/null
+/*
+ * BSS client mode implementation
+ * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright 2004, Instant802 Networks, Inc.
+ * Copyright 2005, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* TODO:
+ * BSS table: use <BSSID,SSID> as the key to support multi-SSID APs
+ * order BSS list by RSSI(?) ("quality of AP")
+ * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE,
+ * SSID)
+ */
+#include <linux/delay.h>
+#include <linux/if_ether.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/if_arp.h>
+#include <linux/wireless.h>
+#include <linux/random.h>
+#include <linux/etherdevice.h>
+#include <net/iw_handler.h>
+#include <asm/types.h>
+
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "ieee80211_rate.h"
+#include "ieee80211_led.h"
+
+#define IEEE80211_AUTH_TIMEOUT (HZ / 5)
+#define IEEE80211_AUTH_MAX_TRIES 3
+#define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
+#define IEEE80211_ASSOC_MAX_TRIES 3
+#define IEEE80211_MONITORING_INTERVAL (2 * HZ)
+#define IEEE80211_PROBE_INTERVAL (60 * HZ)
+#define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
+#define IEEE80211_SCAN_INTERVAL (2 * HZ)
+#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ)
+#define IEEE80211_IBSS_JOIN_TIMEOUT (20 * HZ)
+
+#define IEEE80211_PROBE_DELAY (HZ / 33)
+#define IEEE80211_CHANNEL_TIME (HZ / 33)
+#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5)
+#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
+#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
+#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
+
+#define IEEE80211_IBSS_MAX_STA_ENTRIES 128
+
+
+#define IEEE80211_FC(type, stype) cpu_to_le16(type | stype)
+
+#define ERP_INFO_USE_PROTECTION BIT(1)
+
+static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
+ u8 *ssid, size_t ssid_len);
+static struct ieee80211_sta_bss *
+ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid);
+static void ieee80211_rx_bss_put(struct net_device *dev,
+ struct ieee80211_sta_bss *bss);
+static int ieee80211_sta_find_ibss(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta);
+static int ieee80211_sta_wep_configured(struct net_device *dev);
+static int ieee80211_sta_start_scan(struct net_device *dev,
+ u8 *ssid, size_t ssid_len);
+static int ieee80211_sta_config_auth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta);
+
+
+/* Parsed Information Elements */
+struct ieee802_11_elems {
+ /* pointers to IEs */
+ u8 *ssid;
+ u8 *supp_rates;
+ u8 *fh_params;
+ u8 *ds_params;
+ u8 *cf_params;
+ u8 *tim;
+ u8 *ibss_params;
+ u8 *challenge;
+ u8 *wpa;
+ u8 *rsn;
+ u8 *erp_info;
+ u8 *ext_supp_rates;
+ u8 *wmm_info;
+ u8 *wmm_param;
+
+ /* length of them, respectively */
+ u8 ssid_len;
+ u8 supp_rates_len;
+ u8 fh_params_len;
+ u8 ds_params_len;
+ u8 cf_params_len;
+ u8 tim_len;
+ u8 ibss_params_len;
+ u8 challenge_len;
+ u8 wpa_len;
+ u8 rsn_len;
+ u8 erp_info_len;
+ u8 ext_supp_rates_len;
+ u8 wmm_info_len;
+ u8 wmm_param_len;
+};
+
+enum ParseRes { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 };
+
+static enum ParseRes ieee802_11_parse_elems(u8 *start, size_t len,
+ struct ieee802_11_elems *elems)
+{
+ size_t left = len;
+ u8 *pos = start;
+ int unknown = 0;
+
+ memset(elems, 0, sizeof(*elems));
+
+ while (left >= 2) {
+ u8 id, elen;
+
+ id = *pos++;
+ elen = *pos++;
+ left -= 2;
+
+ if (elen > left) {
+#if 0
+ if (net_ratelimit())
+ printk(KERN_DEBUG "IEEE 802.11 element parse "
+ "failed (id=%d elen=%d left=%d)\n",
+ id, elen, left);
+#endif
+ return ParseFailed;
+ }
+
+ switch (id) {
+ case WLAN_EID_SSID:
+ elems->ssid = pos;
+ elems->ssid_len = elen;
+ break;
+ case WLAN_EID_SUPP_RATES:
+ elems->supp_rates = pos;
+ elems->supp_rates_len = elen;
+ break;
+ case WLAN_EID_FH_PARAMS:
+ elems->fh_params = pos;
+ elems->fh_params_len = elen;
+ break;
+ case WLAN_EID_DS_PARAMS:
+ elems->ds_params = pos;
+ elems->ds_params_len = elen;
+ break;
+ case WLAN_EID_CF_PARAMS:
+ elems->cf_params = pos;
+ elems->cf_params_len = elen;
+ break;
+ case WLAN_EID_TIM:
+ elems->tim = pos;
+ elems->tim_len = elen;
+ break;
+ case WLAN_EID_IBSS_PARAMS:
+ elems->ibss_params = pos;
+ elems->ibss_params_len = elen;
+ break;
+ case WLAN_EID_CHALLENGE:
+ elems->challenge = pos;
+ elems->challenge_len = elen;
+ break;
+ case WLAN_EID_WPA:
+ if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
+ pos[2] == 0xf2) {
+ /* Microsoft OUI (00:50:F2) */
+ if (pos[3] == 1) {
+ /* OUI Type 1 - WPA IE */
+ elems->wpa = pos;
+ elems->wpa_len = elen;
+ } else if (elen >= 5 && pos[3] == 2) {
+ if (pos[4] == 0) {
+ elems->wmm_info = pos;
+ elems->wmm_info_len = elen;
+ } else if (pos[4] == 1) {
+ elems->wmm_param = pos;
+ elems->wmm_param_len = elen;
+ }
+ }
+ }
+ break;
+ case WLAN_EID_RSN:
+ elems->rsn = pos;
+ elems->rsn_len = elen;
+ break;
+ case WLAN_EID_ERP_INFO:
+ elems->erp_info = pos;
+ elems->erp_info_len = elen;
+ break;
+ case WLAN_EID_EXT_SUPP_RATES:
+ elems->ext_supp_rates = pos;
+ elems->ext_supp_rates_len = elen;
+ break;
+ default:
+#if 0
+ printk(KERN_DEBUG "IEEE 802.11 element parse ignored "
+ "unknown element (id=%d elen=%d)\n",
+ id, elen);
+#endif
+ unknown++;
+ break;
+ }
+
+ left -= elen;
+ pos += elen;
+ }
+
+ /* Do not trigger error if left == 1 as Apple Airport base stations
+ * send AssocResps that are one spurious byte too long. */
+
+ return unknown ? ParseUnknown : ParseOK;
+}
+
+
+
+
+static int ecw2cw(int ecw)
+{
+ int cw = 1;
+ while (ecw > 0) {
+ cw <<= 1;
+ ecw--;
+ }
+ return cw - 1;
+}
+
+static void ieee80211_sta_wmm_params(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ u8 *wmm_param, size_t wmm_param_len)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_tx_queue_params params;
+ size_t left;
+ int count;
+ u8 *pos;
+
+ if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1)
+ return;
+ count = wmm_param[6] & 0x0f;
+ if (count == ifsta->wmm_last_param_set)
+ return;
+ ifsta->wmm_last_param_set = count;
+
+ pos = wmm_param + 8;
+ left = wmm_param_len - 8;
+
+ memset(¶ms, 0, sizeof(params));
+
+ if (!local->ops->conf_tx)
+ return;
+
+ local->wmm_acm = 0;
+ for (; left >= 4; left -= 4, pos += 4) {
+ int aci = (pos[0] >> 5) & 0x03;
+ int acm = (pos[0] >> 4) & 0x01;
+ int queue;
+
+ switch (aci) {
+ case 1:
+ queue = IEEE80211_TX_QUEUE_DATA3;
+ if (acm) {
+ local->wmm_acm |= BIT(0) | BIT(3);
+ }
+ break;
+ case 2:
+ queue = IEEE80211_TX_QUEUE_DATA1;
+ if (acm) {
+ local->wmm_acm |= BIT(4) | BIT(5);
+ }
+ break;
+ case 3:
+ queue = IEEE80211_TX_QUEUE_DATA0;
+ if (acm) {
+ local->wmm_acm |= BIT(6) | BIT(7);
+ }
+ break;
+ case 0:
+ default:
+ queue = IEEE80211_TX_QUEUE_DATA2;
+ if (acm) {
+ local->wmm_acm |= BIT(1) | BIT(2);
+ }
+ break;
+ }
+
+ params.aifs = pos[0] & 0x0f;
+ params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
+ params.cw_min = ecw2cw(pos[1] & 0x0f);
+ /* TXOP is in units of 32 usec; burst_time in 0.1 ms */
+ params.burst_time = (pos[2] | (pos[3] << 8)) * 32 / 100;
+ printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d "
+ "cWmin=%d cWmax=%d burst=%d\n",
+ dev->name, queue, aci, acm, params.aifs, params.cw_min,
+ params.cw_max, params.burst_time);
+ /* TODO: handle ACM (block TX, fallback to next lowest allowed
+ * AC for now) */
+ if (local->ops->conf_tx(local_to_hw(local), queue, ¶ms)) {
+ printk(KERN_DEBUG "%s: failed to set TX queue "
+ "parameters for queue %d\n", dev->name, queue);
+ }
+ }
+}
+
+
+static void ieee80211_handle_erp_ie(struct net_device *dev, u8 erp_value)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ int use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
+ int preamble_mode = (erp_value & WLAN_ERP_BARKER_PREAMBLE) != 0;
+ u8 changes = 0;
+
+ if (use_protection != !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION)) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: CTS protection %s (BSSID="
+ MAC_FMT ")\n",
+ dev->name,
+ use_protection ? "enabled" : "disabled",
+ MAC_ARG(ifsta->bssid));
+ }
+ if (use_protection)
+ sdata->flags |= IEEE80211_SDATA_USE_PROTECTION;
+ else
+ sdata->flags &= ~IEEE80211_SDATA_USE_PROTECTION;
+ changes |= IEEE80211_ERP_CHANGE_PROTECTION;
+ }
+
+ if (preamble_mode != !(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE)) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: switched to %s barker preamble"
+ " (BSSID=" MAC_FMT ")\n",
+ dev->name,
+ (preamble_mode == WLAN_ERP_PREAMBLE_SHORT) ?
+ "short" : "long",
+ MAC_ARG(ifsta->bssid));
+ }
+ if (preamble_mode)
+ sdata->flags &= ~IEEE80211_SDATA_SHORT_PREAMBLE;
+ else
+ sdata->flags |= IEEE80211_SDATA_SHORT_PREAMBLE;
+ changes |= IEEE80211_ERP_CHANGE_PREAMBLE;
+ }
+
+ if (changes)
+ ieee80211_erp_info_change_notify(dev, changes);
+}
+
+
+static void ieee80211_sta_send_associnfo(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ char *buf;
+ size_t len;
+ int i;
+ union iwreq_data wrqu;
+
+ if (!ifsta->assocreq_ies && !ifsta->assocresp_ies)
+ return;
+
+ buf = kmalloc(50 + 2 * (ifsta->assocreq_ies_len +
+ ifsta->assocresp_ies_len), GFP_KERNEL);
+ if (!buf)
+ return;
+
+ len = sprintf(buf, "ASSOCINFO(");
+ if (ifsta->assocreq_ies) {
+ len += sprintf(buf + len, "ReqIEs=");
+ for (i = 0; i < ifsta->assocreq_ies_len; i++) {
+ len += sprintf(buf + len, "%02x",
+ ifsta->assocreq_ies[i]);
+ }
+ }
+ if (ifsta->assocresp_ies) {
+ if (ifsta->assocreq_ies)
+ len += sprintf(buf + len, " ");
+ len += sprintf(buf + len, "RespIEs=");
+ for (i = 0; i < ifsta->assocresp_ies_len; i++) {
+ len += sprintf(buf + len, "%02x",
+ ifsta->assocresp_ies[i]);
+ }
+ }
+ len += sprintf(buf + len, ")");
+
+ if (len > IW_CUSTOM_MAX) {
+ len = sprintf(buf, "ASSOCRESPIE=");
+ for (i = 0; i < ifsta->assocresp_ies_len; i++) {
+ len += sprintf(buf + len, "%02x",
+ ifsta->assocresp_ies[i]);
+ }
+ }
+
+ memset(&wrqu, 0, sizeof(wrqu));
+ wrqu.data.length = len;
+ wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
+
+ kfree(buf);
+}
+
+
+static void ieee80211_set_associated(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ bool assoc)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ union iwreq_data wrqu;
+
+ if (!!(ifsta->flags & IEEE80211_STA_ASSOCIATED) == assoc)
+ return;
+
+ if (assoc) {
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sta_bss *bss;
+
+ ifsta->flags |= IEEE80211_STA_ASSOCIATED;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type != IEEE80211_IF_TYPE_STA)
+ return;
+
+ bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
+ if (bss) {
+ if (bss->has_erp_value)
+ ieee80211_handle_erp_ie(dev, bss->erp_value);
+ ieee80211_rx_bss_put(dev, bss);
+ }
+
+ netif_carrier_on(dev);
+ ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
+ memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
+ memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN);
+ ieee80211_sta_send_associnfo(dev, ifsta);
+ } else {
+ ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
+
+ netif_carrier_off(dev);
+ ieee80211_reset_erp_info(dev);
+ memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
+ }
+ wrqu.ap_addr.sa_family = ARPHRD_ETHER;
+ wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
+ ifsta->last_probe = jiffies;
+ ieee80211_led_assoc(local, assoc);
+}
+
+static void ieee80211_set_disassoc(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta, int deauth)
+{
+ if (deauth)
+ ifsta->auth_tries = 0;
+ ifsta->assoc_tries = 0;
+ ieee80211_set_associated(dev, ifsta, 0);
+}
+
+static void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
+ int encrypt)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_tx_packet_data *pkt_data;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ skb->dev = sdata->local->mdev;
+ skb_set_mac_header(skb, 0);
+ skb_set_network_header(skb, 0);
+ skb_set_transport_header(skb, 0);
+
+ pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+ memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
+ pkt_data->ifindex = sdata->dev->ifindex;
+ if (!encrypt)
+ pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
+
+ dev_queue_xmit(skb);
+}
+
+
+static void ieee80211_send_auth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ int transaction, u8 *extra, size_t extra_len,
+ int encrypt)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom +
+ sizeof(*mgmt) + 6 + extra_len);
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
+ "frame\n", dev->name);
+ return;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6);
+ memset(mgmt, 0, 24 + 6);
+ mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_AUTH);
+ if (encrypt)
+ mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
+ memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
+ memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+ mgmt->u.auth.auth_alg = cpu_to_le16(ifsta->auth_alg);
+ mgmt->u.auth.auth_transaction = cpu_to_le16(transaction);
+ ifsta->auth_transaction = transaction + 1;
+ mgmt->u.auth.status_code = cpu_to_le16(0);
+ if (extra)
+ memcpy(skb_put(skb, extra_len), extra, extra_len);
+
+ ieee80211_sta_tx(dev, skb, encrypt);
+}
+
+
+static void ieee80211_authenticate(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ ifsta->auth_tries++;
+ if (ifsta->auth_tries > IEEE80211_AUTH_MAX_TRIES) {
+ printk(KERN_DEBUG "%s: authentication with AP " MAC_FMT
+ " timed out\n",
+ dev->name, MAC_ARG(ifsta->bssid));
+ ifsta->state = IEEE80211_DISABLED;
+ return;
+ }
+
+ ifsta->state = IEEE80211_AUTHENTICATE;
+ printk(KERN_DEBUG "%s: authenticate with AP " MAC_FMT "\n",
+ dev->name, MAC_ARG(ifsta->bssid));
+
+ ieee80211_send_auth(dev, ifsta, 1, NULL, 0, 0);
+
+ mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
+}
+
+
+static void ieee80211_send_assoc(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw_mode *mode;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+ u8 *pos, *ies;
+ int i, len;
+ u16 capab;
+ struct ieee80211_sta_bss *bss;
+ int wmm = 0;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom +
+ sizeof(*mgmt) + 200 + ifsta->extra_ie_len +
+ ifsta->ssid_len);
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
+ "frame\n", dev->name);
+ return;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ mode = local->oper_hw_mode;
+ capab = ifsta->capab;
+ if (mode->mode == MODE_IEEE80211G) {
+ capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME |
+ WLAN_CAPABILITY_SHORT_PREAMBLE;
+ }
+ bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
+ if (bss) {
+ if (bss->capability & WLAN_CAPABILITY_PRIVACY)
+ capab |= WLAN_CAPABILITY_PRIVACY;
+ if (bss->wmm_ie) {
+ wmm = 1;
+ }
+ ieee80211_rx_bss_put(dev, bss);
+ }
+
+ mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+ memset(mgmt, 0, 24);
+ memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
+ memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+
+ if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
+ skb_put(skb, 10);
+ mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_REASSOC_REQ);
+ mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab);
+ mgmt->u.reassoc_req.listen_interval = cpu_to_le16(1);
+ memcpy(mgmt->u.reassoc_req.current_ap, ifsta->prev_bssid,
+ ETH_ALEN);
+ } else {
+ skb_put(skb, 4);
+ mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_ASSOC_REQ);
+ mgmt->u.assoc_req.capab_info = cpu_to_le16(capab);
+ mgmt->u.assoc_req.listen_interval = cpu_to_le16(1);
+ }
+
+ /* SSID */
+ ies = pos = skb_put(skb, 2 + ifsta->ssid_len);
+ *pos++ = WLAN_EID_SSID;
+ *pos++ = ifsta->ssid_len;
+ memcpy(pos, ifsta->ssid, ifsta->ssid_len);
+
+ len = mode->num_rates;
+ if (len > 8)
+ len = 8;
+ pos = skb_put(skb, len + 2);
+ *pos++ = WLAN_EID_SUPP_RATES;
+ *pos++ = len;
+ for (i = 0; i < len; i++) {
+ int rate = mode->rates[i].rate;
+ *pos++ = (u8) (rate / 5);
+ }
+
+ if (mode->num_rates > len) {
+ pos = skb_put(skb, mode->num_rates - len + 2);
+ *pos++ = WLAN_EID_EXT_SUPP_RATES;
+ *pos++ = mode->num_rates - len;
+ for (i = len; i < mode->num_rates; i++) {
+ int rate = mode->rates[i].rate;
+ *pos++ = (u8) (rate / 5);
+ }
+ }
+
+ if (ifsta->extra_ie) {
+ pos = skb_put(skb, ifsta->extra_ie_len);
+ memcpy(pos, ifsta->extra_ie, ifsta->extra_ie_len);
+ }
+
+ if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
+ pos = skb_put(skb, 9);
+ *pos++ = WLAN_EID_VENDOR_SPECIFIC;
+ *pos++ = 7; /* len */
+ *pos++ = 0x00; /* Microsoft OUI 00:50:F2 */
+ *pos++ = 0x50;
+ *pos++ = 0xf2;
+ *pos++ = 2; /* WME */
+ *pos++ = 0; /* WME info */
+ *pos++ = 1; /* WME ver */
+ *pos++ = 0;
+ }
+
+ kfree(ifsta->assocreq_ies);
+ ifsta->assocreq_ies_len = (skb->data + skb->len) - ies;
+ ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_KERNEL);
+ if (ifsta->assocreq_ies)
+ memcpy(ifsta->assocreq_ies, ies, ifsta->assocreq_ies_len);
+
+ ieee80211_sta_tx(dev, skb, 0);
+}
+
+
+static void ieee80211_send_deauth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta, u16 reason)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for deauth "
+ "frame\n", dev->name);
+ return;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+ memset(mgmt, 0, 24);
+ memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
+ memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+ mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_DEAUTH);
+ skb_put(skb, 2);
+ mgmt->u.deauth.reason_code = cpu_to_le16(reason);
+
+ ieee80211_sta_tx(dev, skb, 0);
+}
+
+
+static void ieee80211_send_disassoc(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta, u16 reason)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for disassoc "
+ "frame\n", dev->name);
+ return;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+ memset(mgmt, 0, 24);
+ memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
+ memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+ mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_DISASSOC);
+ skb_put(skb, 2);
+ mgmt->u.disassoc.reason_code = cpu_to_le16(reason);
+
+ ieee80211_sta_tx(dev, skb, 0);
+}
+
+
+static int ieee80211_privacy_mismatch(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_sta_bss *bss;
+ int res = 0;
+
+ if (!ifsta || (ifsta->flags & IEEE80211_STA_MIXED_CELL) ||
+ ifsta->key_management_enabled)
+ return 0;
+
+ bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
+ if (!bss)
+ return 0;
+
+ if (ieee80211_sta_wep_configured(dev) !=
+ !!(bss->capability & WLAN_CAPABILITY_PRIVACY))
+ res = 1;
+
+ ieee80211_rx_bss_put(dev, bss);
+
+ return res;
+}
+
+
+static void ieee80211_associate(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ ifsta->assoc_tries++;
+ if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
+ printk(KERN_DEBUG "%s: association with AP " MAC_FMT
+ " timed out\n",
+ dev->name, MAC_ARG(ifsta->bssid));
+ ifsta->state = IEEE80211_DISABLED;
+ return;
+ }
+
+ ifsta->state = IEEE80211_ASSOCIATE;
+ printk(KERN_DEBUG "%s: associate with AP " MAC_FMT "\n",
+ dev->name, MAC_ARG(ifsta->bssid));
+ if (ieee80211_privacy_mismatch(dev, ifsta)) {
+ printk(KERN_DEBUG "%s: mismatch in privacy configuration and "
+ "mixed-cell disabled - abort association\n", dev->name);
+ ifsta->state = IEEE80211_DISABLED;
+ return;
+ }
+
+ ieee80211_send_assoc(dev, ifsta);
+
+ mod_timer(&ifsta->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
+}
+
+
+static void ieee80211_associated(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
+ int disassoc;
+
+ /* TODO: start monitoring current AP signal quality and number of
+ * missed beacons. Scan other channels every now and then and search
+ * for better APs. */
+ /* TODO: remove expired BSSes */
+
+ ifsta->state = IEEE80211_ASSOCIATED;
+
+ sta = sta_info_get(local, ifsta->bssid);
+ if (!sta) {
+ printk(KERN_DEBUG "%s: No STA entry for own AP " MAC_FMT "\n",
+ dev->name, MAC_ARG(ifsta->bssid));
+ disassoc = 1;
+ } else {
+ disassoc = 0;
+ if (time_after(jiffies,
+ sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
+ if (ifsta->flags & IEEE80211_STA_PROBEREQ_POLL) {
+ printk(KERN_DEBUG "%s: No ProbeResp from "
+ "current AP " MAC_FMT " - assume out of "
+ "range\n",
+ dev->name, MAC_ARG(ifsta->bssid));
+ disassoc = 1;
+ sta_info_free(sta);
+ } else
+ ieee80211_send_probe_req(dev, ifsta->bssid,
+ local->scan_ssid,
+ local->scan_ssid_len);
+ ifsta->flags ^= IEEE80211_STA_PROBEREQ_POLL;
+ } else {
+ ifsta->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
+ if (time_after(jiffies, ifsta->last_probe +
+ IEEE80211_PROBE_INTERVAL)) {
+ ifsta->last_probe = jiffies;
+ ieee80211_send_probe_req(dev, ifsta->bssid,
+ ifsta->ssid,
+ ifsta->ssid_len);
+ }
+ }
+ sta_info_put(sta);
+ }
+ if (disassoc) {
+ union iwreq_data wrqu;
+ memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
+ wrqu.ap_addr.sa_family = ARPHRD_ETHER;
+ wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
+ mod_timer(&ifsta->timer, jiffies +
+ IEEE80211_MONITORING_INTERVAL + 30 * HZ);
+ } else {
+ mod_timer(&ifsta->timer, jiffies +
+ IEEE80211_MONITORING_INTERVAL);
+ }
+}
+
+
+static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
+ u8 *ssid, size_t ssid_len)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw_mode *mode;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+ u8 *pos, *supp_rates, *esupp_rates = NULL;
+ int i;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200);
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
+ "request\n", dev->name);
+ return;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+ memset(mgmt, 0, 24);
+ mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_PROBE_REQ);
+ memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ if (dst) {
+ memcpy(mgmt->da, dst, ETH_ALEN);
+ memcpy(mgmt->bssid, dst, ETH_ALEN);
+ } else {
+ memset(mgmt->da, 0xff, ETH_ALEN);
+ memset(mgmt->bssid, 0xff, ETH_ALEN);
+ }
+ pos = skb_put(skb, 2 + ssid_len);
+ *pos++ = WLAN_EID_SSID;
+ *pos++ = ssid_len;
+ memcpy(pos, ssid, ssid_len);
+
+ supp_rates = skb_put(skb, 2);
+ supp_rates[0] = WLAN_EID_SUPP_RATES;
+ supp_rates[1] = 0;
+ mode = local->oper_hw_mode;
+ for (i = 0; i < mode->num_rates; i++) {
+ struct ieee80211_rate *rate = &mode->rates[i];
+ if (!(rate->flags & IEEE80211_RATE_SUPPORTED))
+ continue;
+ if (esupp_rates) {
+ pos = skb_put(skb, 1);
+ esupp_rates[1]++;
+ } else if (supp_rates[1] == 8) {
+ esupp_rates = skb_put(skb, 3);
+ esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
+ esupp_rates[1] = 1;
+ pos = &esupp_rates[2];
+ } else {
+ pos = skb_put(skb, 1);
+ supp_rates[1]++;
+ }
+ *pos = rate->rate / 5;
+ }
+
+ ieee80211_sta_tx(dev, skb, 0);
+}
+
+
+static int ieee80211_sta_wep_configured(struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (!sdata || !sdata->default_key ||
+ sdata->default_key->conf.alg != ALG_WEP)
+ return 0;
+ return 1;
+}
+
+
+static void ieee80211_auth_completed(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ printk(KERN_DEBUG "%s: authenticated\n", dev->name);
+ ifsta->flags |= IEEE80211_STA_AUTHENTICATED;
+ ieee80211_associate(dev, ifsta);
+}
+
+
+static void ieee80211_auth_challenge(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ u8 *pos;
+ struct ieee802_11_elems elems;
+
+ printk(KERN_DEBUG "%s: replying to auth challenge\n", dev->name);
+ pos = mgmt->u.auth.variable;
+ if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems)
+ == ParseFailed) {
+ printk(KERN_DEBUG "%s: failed to parse Auth(challenge)\n",
+ dev->name);
+ return;
+ }
+ if (!elems.challenge) {
+ printk(KERN_DEBUG "%s: no challenge IE in shared key auth "
+ "frame\n", dev->name);
+ return;
+ }
+ ieee80211_send_auth(dev, ifsta, 3, elems.challenge - 2,
+ elems.challenge_len + 2, 1);
+}
+
+
+static void ieee80211_rx_mgmt_auth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ u16 auth_alg, auth_transaction, status_code;
+
+ if (ifsta->state != IEEE80211_AUTHENTICATE &&
+ sdata->type != IEEE80211_IF_TYPE_IBSS) {
+ printk(KERN_DEBUG "%s: authentication frame received from "
+ MAC_FMT ", but not in authenticate state - ignored\n",
+ dev->name, MAC_ARG(mgmt->sa));
+ return;
+ }
+
+ if (len < 24 + 6) {
+ printk(KERN_DEBUG "%s: too short (%zd) authentication frame "
+ "received from " MAC_FMT " - ignored\n",
+ dev->name, len, MAC_ARG(mgmt->sa));
+ return;
+ }
+
+ if (sdata->type != IEEE80211_IF_TYPE_IBSS &&
+ memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
+ printk(KERN_DEBUG "%s: authentication frame received from "
+ "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
+ "ignored\n", dev->name, MAC_ARG(mgmt->sa),
+ MAC_ARG(mgmt->bssid));
+ return;
+ }
+
+ if (sdata->type != IEEE80211_IF_TYPE_IBSS &&
+ memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0) {
+ printk(KERN_DEBUG "%s: authentication frame received from "
+ "unknown BSSID (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
+ "ignored\n", dev->name, MAC_ARG(mgmt->sa),
+ MAC_ARG(mgmt->bssid));
+ return;
+ }
+
+ auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg);
+ auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction);
+ status_code = le16_to_cpu(mgmt->u.auth.status_code);
+
+ printk(KERN_DEBUG "%s: RX authentication from " MAC_FMT " (alg=%d "
+ "transaction=%d status=%d)\n",
+ dev->name, MAC_ARG(mgmt->sa), auth_alg,
+ auth_transaction, status_code);
+
+ if (sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ /* IEEE 802.11 standard does not require authentication in IBSS
+ * networks and most implementations do not seem to use it.
+ * However, try to reply to authentication attempts if someone
+ * has actually implemented this.
+ * TODO: Could implement shared key authentication. */
+ if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1) {
+ printk(KERN_DEBUG "%s: unexpected IBSS authentication "
+ "frame (alg=%d transaction=%d)\n",
+ dev->name, auth_alg, auth_transaction);
+ return;
+ }
+ ieee80211_send_auth(dev, ifsta, 2, NULL, 0, 0);
+ }
+
+ if (auth_alg != ifsta->auth_alg ||
+ auth_transaction != ifsta->auth_transaction) {
+ printk(KERN_DEBUG "%s: unexpected authentication frame "
+ "(alg=%d transaction=%d)\n",
+ dev->name, auth_alg, auth_transaction);
+ return;
+ }
+
+ if (status_code != WLAN_STATUS_SUCCESS) {
+ printk(KERN_DEBUG "%s: AP denied authentication (auth_alg=%d "
+ "code=%d)\n", dev->name, ifsta->auth_alg, status_code);
+ if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) {
+ u8 algs[3];
+ const int num_algs = ARRAY_SIZE(algs);
+ int i, pos;
+ algs[0] = algs[1] = algs[2] = 0xff;
+ if (ifsta->auth_algs & IEEE80211_AUTH_ALG_OPEN)
+ algs[0] = WLAN_AUTH_OPEN;
+ if (ifsta->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
+ algs[1] = WLAN_AUTH_SHARED_KEY;
+ if (ifsta->auth_algs & IEEE80211_AUTH_ALG_LEAP)
+ algs[2] = WLAN_AUTH_LEAP;
+ if (ifsta->auth_alg == WLAN_AUTH_OPEN)
+ pos = 0;
+ else if (ifsta->auth_alg == WLAN_AUTH_SHARED_KEY)
+ pos = 1;
+ else
+ pos = 2;
+ for (i = 0; i < num_algs; i++) {
+ pos++;
+ if (pos >= num_algs)
+ pos = 0;
+ if (algs[pos] == ifsta->auth_alg ||
+ algs[pos] == 0xff)
+ continue;
+ if (algs[pos] == WLAN_AUTH_SHARED_KEY &&
+ !ieee80211_sta_wep_configured(dev))
+ continue;
+ ifsta->auth_alg = algs[pos];
+ printk(KERN_DEBUG "%s: set auth_alg=%d for "
+ "next try\n",
+ dev->name, ifsta->auth_alg);
+ break;
+ }
+ }
+ return;
+ }
+
+ switch (ifsta->auth_alg) {
+ case WLAN_AUTH_OPEN:
+ case WLAN_AUTH_LEAP:
+ ieee80211_auth_completed(dev, ifsta);
+ break;
+ case WLAN_AUTH_SHARED_KEY:
+ if (ifsta->auth_transaction == 4)
+ ieee80211_auth_completed(dev, ifsta);
+ else
+ ieee80211_auth_challenge(dev, ifsta, mgmt, len);
+ break;
+ }
+}
+
+
+static void ieee80211_rx_mgmt_deauth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ u16 reason_code;
+
+ if (len < 24 + 2) {
+ printk(KERN_DEBUG "%s: too short (%zd) deauthentication frame "
+ "received from " MAC_FMT " - ignored\n",
+ dev->name, len, MAC_ARG(mgmt->sa));
+ return;
+ }
+
+ if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
+ printk(KERN_DEBUG "%s: deauthentication frame received from "
+ "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
+ "ignored\n", dev->name, MAC_ARG(mgmt->sa),
+ MAC_ARG(mgmt->bssid));
+ return;
+ }
+
+ reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
+
+ printk(KERN_DEBUG "%s: RX deauthentication from " MAC_FMT
+ " (reason=%d)\n",
+ dev->name, MAC_ARG(mgmt->sa), reason_code);
+
+ if (ifsta->flags & IEEE80211_STA_AUTHENTICATED) {
+ printk(KERN_DEBUG "%s: deauthenticated\n", dev->name);
+ }
+
+ if (ifsta->state == IEEE80211_AUTHENTICATE ||
+ ifsta->state == IEEE80211_ASSOCIATE ||
+ ifsta->state == IEEE80211_ASSOCIATED) {
+ ifsta->state = IEEE80211_AUTHENTICATE;
+ mod_timer(&ifsta->timer, jiffies +
+ IEEE80211_RETRY_AUTH_INTERVAL);
+ }
+
+ ieee80211_set_disassoc(dev, ifsta, 1);
+ ifsta->flags &= ~IEEE80211_STA_AUTHENTICATED;
+}
+
+
+static void ieee80211_rx_mgmt_disassoc(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ u16 reason_code;
+
+ if (len < 24 + 2) {
+ printk(KERN_DEBUG "%s: too short (%zd) disassociation frame "
+ "received from " MAC_FMT " - ignored\n",
+ dev->name, len, MAC_ARG(mgmt->sa));
+ return;
+ }
+
+ if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
+ printk(KERN_DEBUG "%s: disassociation frame received from "
+ "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
+ "ignored\n", dev->name, MAC_ARG(mgmt->sa),
+ MAC_ARG(mgmt->bssid));
+ return;
+ }
+
+ reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
+
+ printk(KERN_DEBUG "%s: RX disassociation from " MAC_FMT
+ " (reason=%d)\n",
+ dev->name, MAC_ARG(mgmt->sa), reason_code);
+
+ if (ifsta->flags & IEEE80211_STA_ASSOCIATED)
+ printk(KERN_DEBUG "%s: disassociated\n", dev->name);
+
+ if (ifsta->state == IEEE80211_ASSOCIATED) {
+ ifsta->state = IEEE80211_ASSOCIATE;
+ mod_timer(&ifsta->timer, jiffies +
+ IEEE80211_RETRY_AUTH_INTERVAL);
+ }
+
+ ieee80211_set_disassoc(dev, ifsta, 0);
+}
+
+
+static void ieee80211_rx_mgmt_assoc_resp(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len,
+ int reassoc)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw_mode *mode;
+ struct sta_info *sta;
+ u32 rates;
+ u16 capab_info, status_code, aid;
+ struct ieee802_11_elems elems;
+ u8 *pos;
+ int i, j;
+
+ /* AssocResp and ReassocResp have identical structure, so process both
+ * of them in this function. */
+
+ if (ifsta->state != IEEE80211_ASSOCIATE) {
+ printk(KERN_DEBUG "%s: association frame received from "
+ MAC_FMT ", but not in associate state - ignored\n",
+ dev->name, MAC_ARG(mgmt->sa));
+ return;
+ }
+
+ if (len < 24 + 6) {
+ printk(KERN_DEBUG "%s: too short (%zd) association frame "
+ "received from " MAC_FMT " - ignored\n",
+ dev->name, len, MAC_ARG(mgmt->sa));
+ return;
+ }
+
+ if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
+ printk(KERN_DEBUG "%s: association frame received from "
+ "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
+ "ignored\n", dev->name, MAC_ARG(mgmt->sa),
+ MAC_ARG(mgmt->bssid));
+ return;
+ }
+
+ capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info);
+ status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
+ aid = le16_to_cpu(mgmt->u.assoc_resp.aid);
+ if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14)))
+ printk(KERN_DEBUG "%s: invalid aid value %d; bits 15:14 not "
+ "set\n", dev->name, aid);
+ aid &= ~(BIT(15) | BIT(14));
+
+ printk(KERN_DEBUG "%s: RX %sssocResp from " MAC_FMT " (capab=0x%x "
+ "status=%d aid=%d)\n",
+ dev->name, reassoc ? "Rea" : "A", MAC_ARG(mgmt->sa),
+ capab_info, status_code, aid);
+
+ if (status_code != WLAN_STATUS_SUCCESS) {
+ printk(KERN_DEBUG "%s: AP denied association (code=%d)\n",
+ dev->name, status_code);
+ /* if this was a reassociation, ensure we try a "full"
+ * association next time. This works around some broken APs
+ * which do not correctly reject reassociation requests. */
+ ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+ return;
+ }
+
+ pos = mgmt->u.assoc_resp.variable;
+ if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems)
+ == ParseFailed) {
+ printk(KERN_DEBUG "%s: failed to parse AssocResp\n",
+ dev->name);
+ return;
+ }
+
+ if (!elems.supp_rates) {
+ printk(KERN_DEBUG "%s: no SuppRates element in AssocResp\n",
+ dev->name);
+ return;
+ }
+
+ /* it probably doesn't, but if the frame includes an ERP value then
+ * update our stored copy */
+ if (elems.erp_info && elems.erp_info_len >= 1) {
+ struct ieee80211_sta_bss *bss
+ = ieee80211_rx_bss_get(dev, ifsta->bssid);
+ if (bss) {
+ bss->erp_value = elems.erp_info[0];
+ bss->has_erp_value = 1;
+ ieee80211_rx_bss_put(dev, bss);
+ }
+ }
+
+ printk(KERN_DEBUG "%s: associated\n", dev->name);
+ ifsta->aid = aid;
+ ifsta->ap_capab = capab_info;
+
+ kfree(ifsta->assocresp_ies);
+ ifsta->assocresp_ies_len = len - (pos - (u8 *) mgmt);
+ ifsta->assocresp_ies = kmalloc(ifsta->assocresp_ies_len, GFP_KERNEL);
+ if (ifsta->assocresp_ies)
+ memcpy(ifsta->assocresp_ies, pos, ifsta->assocresp_ies_len);
+
+ ieee80211_set_associated(dev, ifsta, 1);
+
+ /* Add STA entry for the AP */
+ sta = sta_info_get(local, ifsta->bssid);
+ if (!sta) {
+ struct ieee80211_sta_bss *bss;
+ sta = sta_info_add(local, dev, ifsta->bssid, GFP_KERNEL);
+ if (!sta) {
+ printk(KERN_DEBUG "%s: failed to add STA entry for the"
+ " AP\n", dev->name);
+ return;
+ }
+ bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
+ if (bss) {
+ sta->last_rssi = bss->rssi;
+ sta->last_signal = bss->signal;
+ sta->last_noise = bss->noise;
+ ieee80211_rx_bss_put(dev, bss);
+ }
+ }
+
+ sta->dev = dev;
+ sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_AP;
+
+ rates = 0;
+ mode = local->oper_hw_mode;
+ for (i = 0; i < elems.supp_rates_len; i++) {
+ int rate = (elems.supp_rates[i] & 0x7f) * 5;
+ for (j = 0; j < mode->num_rates; j++)
+ if (mode->rates[j].rate == rate)
+ rates |= BIT(j);
+ }
+ for (i = 0; i < elems.ext_supp_rates_len; i++) {
+ int rate = (elems.ext_supp_rates[i] & 0x7f) * 5;
+ for (j = 0; j < mode->num_rates; j++)
+ if (mode->rates[j].rate == rate)
+ rates |= BIT(j);
+ }
+ sta->supp_rates = rates;
+
+ rate_control_rate_init(sta, local);
+
+ if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
+ sta->flags |= WLAN_STA_WME;
+ ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
+ elems.wmm_param_len);
+ }
+
+
+ sta_info_put(sta);
+
+ ieee80211_associated(dev, ifsta);
+}
+
+
+/* Caller must hold local->sta_bss_lock */
+static void __ieee80211_rx_bss_hash_add(struct net_device *dev,
+ struct ieee80211_sta_bss *bss)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ bss->hnext = local->sta_bss_hash[STA_HASH(bss->bssid)];
+ local->sta_bss_hash[STA_HASH(bss->bssid)] = bss;
+}
+
+
+/* Caller must hold local->sta_bss_lock */
+static void __ieee80211_rx_bss_hash_del(struct net_device *dev,
+ struct ieee80211_sta_bss *bss)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *b, *prev = NULL;
+ b = local->sta_bss_hash[STA_HASH(bss->bssid)];
+ while (b) {
+ if (b == bss) {
+ if (!prev)
+ local->sta_bss_hash[STA_HASH(bss->bssid)] =
+ bss->hnext;
+ else
+ prev->hnext = bss->hnext;
+ break;
+ }
+ prev = b;
+ b = b->hnext;
+ }
+}
+
+
+static struct ieee80211_sta_bss *
+ieee80211_rx_bss_add(struct net_device *dev, u8 *bssid)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss;
+
+ bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
+ if (!bss)
+ return NULL;
+ atomic_inc(&bss->users);
+ atomic_inc(&bss->users);
+ memcpy(bss->bssid, bssid, ETH_ALEN);
+
+ spin_lock_bh(&local->sta_bss_lock);
+ /* TODO: order by RSSI? */
+ list_add_tail(&bss->list, &local->sta_bss_list);
+ __ieee80211_rx_bss_hash_add(dev, bss);
+ spin_unlock_bh(&local->sta_bss_lock);
+ return bss;
+}
+
+
+static struct ieee80211_sta_bss *
+ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss;
+
+ spin_lock_bh(&local->sta_bss_lock);
+ bss = local->sta_bss_hash[STA_HASH(bssid)];
+ while (bss) {
+ if (memcmp(bss->bssid, bssid, ETH_ALEN) == 0) {
+ atomic_inc(&bss->users);
+ break;
+ }
+ bss = bss->hnext;
+ }
+ spin_unlock_bh(&local->sta_bss_lock);
+ return bss;
+}
+
+
+static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
+{
+ kfree(bss->wpa_ie);
+ kfree(bss->rsn_ie);
+ kfree(bss->wmm_ie);
+ kfree(bss);
+}
+
+
+static void ieee80211_rx_bss_put(struct net_device *dev,
+ struct ieee80211_sta_bss *bss)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ if (!atomic_dec_and_test(&bss->users))
+ return;
+
+ spin_lock_bh(&local->sta_bss_lock);
+ __ieee80211_rx_bss_hash_del(dev, bss);
+ list_del(&bss->list);
+ spin_unlock_bh(&local->sta_bss_lock);
+ ieee80211_rx_bss_free(bss);
+}
+
+
+void ieee80211_rx_bss_list_init(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ spin_lock_init(&local->sta_bss_lock);
+ INIT_LIST_HEAD(&local->sta_bss_list);
+}
+
+
+void ieee80211_rx_bss_list_deinit(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss, *tmp;
+
+ list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list)
+ ieee80211_rx_bss_put(dev, bss);
+}
+
+
+static void ieee80211_rx_bss_info(struct net_device *dev,
+ struct ieee80211_mgmt *mgmt,
+ size_t len,
+ struct ieee80211_rx_status *rx_status,
+ int beacon)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee802_11_elems elems;
+ size_t baselen;
+ int channel, invalid = 0, clen;
+ struct ieee80211_sta_bss *bss;
+ struct sta_info *sta;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ u64 timestamp;
+
+ if (!beacon && memcmp(mgmt->da, dev->dev_addr, ETH_ALEN))
+ return; /* ignore ProbeResp to foreign address */
+
+#if 0
+ printk(KERN_DEBUG "%s: RX %s from " MAC_FMT " to " MAC_FMT "\n",
+ dev->name, beacon ? "Beacon" : "Probe Response",
+ MAC_ARG(mgmt->sa), MAC_ARG(mgmt->da));
+#endif
+
+ baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
+ if (baselen > len)
+ return;
+
+ timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
+
+ if (sdata->type == IEEE80211_IF_TYPE_IBSS && beacon &&
+ memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ static unsigned long last_tsf_debug = 0;
+ u64 tsf;
+ if (local->ops->get_tsf)
+ tsf = local->ops->get_tsf(local_to_hw(local));
+ else
+ tsf = -1LLU;
+ if (time_after(jiffies, last_tsf_debug + 5 * HZ)) {
+ printk(KERN_DEBUG "RX beacon SA=" MAC_FMT " BSSID="
+ MAC_FMT " TSF=0x%llx BCN=0x%llx diff=%lld "
+ "@%lu\n",
+ MAC_ARG(mgmt->sa), MAC_ARG(mgmt->bssid),
+ (unsigned long long)tsf,
+ (unsigned long long)timestamp,
+ (unsigned long long)(tsf - timestamp),
+ jiffies);
+ last_tsf_debug = jiffies;
+ }
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+ }
+
+ if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen,
+ &elems) == ParseFailed)
+ invalid = 1;
+
+ if (sdata->type == IEEE80211_IF_TYPE_IBSS && elems.supp_rates &&
+ memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 &&
+ (sta = sta_info_get(local, mgmt->sa))) {
+ struct ieee80211_hw_mode *mode;
+ struct ieee80211_rate *rates;
+ size_t num_rates;
+ u32 supp_rates, prev_rates;
+ int i, j;
+
+ mode = local->sta_scanning ?
+ local->scan_hw_mode : local->oper_hw_mode;
+ rates = mode->rates;
+ num_rates = mode->num_rates;
+
+ supp_rates = 0;
+ for (i = 0; i < elems.supp_rates_len +
+ elems.ext_supp_rates_len; i++) {
+ u8 rate = 0;
+ int own_rate;
+ if (i < elems.supp_rates_len)
+ rate = elems.supp_rates[i];
+ else if (elems.ext_supp_rates)
+ rate = elems.ext_supp_rates
+ [i - elems.supp_rates_len];
+ own_rate = 5 * (rate & 0x7f);
+ for (j = 0; j < num_rates; j++)
+ if (rates[j].rate == own_rate)
+ supp_rates |= BIT(j);
+ }
+
+ prev_rates = sta->supp_rates;
+ sta->supp_rates &= supp_rates;
+ if (sta->supp_rates == 0) {
+ /* No matching rates - this should not really happen.
+ * Make sure that at least one rate is marked
+ * supported to avoid issues with TX rate ctrl. */
+ sta->supp_rates = sdata->u.sta.supp_rates_bits;
+ }
+ if (sta->supp_rates != prev_rates) {
+ printk(KERN_DEBUG "%s: updated supp_rates set for "
+ MAC_FMT " based on beacon info (0x%x & 0x%x -> "
+ "0x%x)\n",
+ dev->name, MAC_ARG(sta->addr), prev_rates,
+ supp_rates, sta->supp_rates);
+ }
+ sta_info_put(sta);
+ }
+
+ if (!elems.ssid)
+ return;
+
+ if (elems.ds_params && elems.ds_params_len == 1)
+ channel = elems.ds_params[0];
+ else
+ channel = rx_status->channel;
+
+ bss = ieee80211_rx_bss_get(dev, mgmt->bssid);
+ if (!bss) {
+ bss = ieee80211_rx_bss_add(dev, mgmt->bssid);
+ if (!bss)
+ return;
+ } else {
+#if 0
+ /* TODO: order by RSSI? */
+ spin_lock_bh(&local->sta_bss_lock);
+ list_move_tail(&bss->list, &local->sta_bss_list);
+ spin_unlock_bh(&local->sta_bss_lock);
+#endif
+ }
+
+ if (bss->probe_resp && beacon) {
+ /* Do not allow beacon to override data from Probe Response. */
+ ieee80211_rx_bss_put(dev, bss);
+ return;
+ }
+
+ /* save the ERP value so that it is available at association time */
+ if (elems.erp_info && elems.erp_info_len >= 1) {
+ bss->erp_value = elems.erp_info[0];
+ bss->has_erp_value = 1;
+ }
+
+ bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int);
+ bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info);
+ if (elems.ssid && elems.ssid_len <= IEEE80211_MAX_SSID_LEN) {
+ memcpy(bss->ssid, elems.ssid, elems.ssid_len);
+ bss->ssid_len = elems.ssid_len;
+ }
+
+ bss->supp_rates_len = 0;
+ if (elems.supp_rates) {
+ clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
+ if (clen > elems.supp_rates_len)
+ clen = elems.supp_rates_len;
+ memcpy(&bss->supp_rates[bss->supp_rates_len], elems.supp_rates,
+ clen);
+ bss->supp_rates_len += clen;
+ }
+ if (elems.ext_supp_rates) {
+ clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
+ if (clen > elems.ext_supp_rates_len)
+ clen = elems.ext_supp_rates_len;
+ memcpy(&bss->supp_rates[bss->supp_rates_len],
+ elems.ext_supp_rates, clen);
+ bss->supp_rates_len += clen;
+ }
+
+ if (elems.wpa &&
+ (!bss->wpa_ie || bss->wpa_ie_len != elems.wpa_len ||
+ memcmp(bss->wpa_ie, elems.wpa, elems.wpa_len))) {
+ kfree(bss->wpa_ie);
+ bss->wpa_ie = kmalloc(elems.wpa_len + 2, GFP_ATOMIC);
+ if (bss->wpa_ie) {
+ memcpy(bss->wpa_ie, elems.wpa - 2, elems.wpa_len + 2);
+ bss->wpa_ie_len = elems.wpa_len + 2;
+ } else
+ bss->wpa_ie_len = 0;
+ } else if (!elems.wpa && bss->wpa_ie) {
+ kfree(bss->wpa_ie);
+ bss->wpa_ie = NULL;
+ bss->wpa_ie_len = 0;
+ }
+
+ if (elems.rsn &&
+ (!bss->rsn_ie || bss->rsn_ie_len != elems.rsn_len ||
+ memcmp(bss->rsn_ie, elems.rsn, elems.rsn_len))) {
+ kfree(bss->rsn_ie);
+ bss->rsn_ie = kmalloc(elems.rsn_len + 2, GFP_ATOMIC);
+ if (bss->rsn_ie) {
+ memcpy(bss->rsn_ie, elems.rsn - 2, elems.rsn_len + 2);
+ bss->rsn_ie_len = elems.rsn_len + 2;
+ } else
+ bss->rsn_ie_len = 0;
+ } else if (!elems.rsn && bss->rsn_ie) {
+ kfree(bss->rsn_ie);
+ bss->rsn_ie = NULL;
+ bss->rsn_ie_len = 0;
+ }
+
+ if (elems.wmm_param &&
+ (!bss->wmm_ie || bss->wmm_ie_len != elems.wmm_param_len ||
+ memcmp(bss->wmm_ie, elems.wmm_param, elems.wmm_param_len))) {
+ kfree(bss->wmm_ie);
+ bss->wmm_ie = kmalloc(elems.wmm_param_len + 2, GFP_ATOMIC);
+ if (bss->wmm_ie) {
+ memcpy(bss->wmm_ie, elems.wmm_param - 2,
+ elems.wmm_param_len + 2);
+ bss->wmm_ie_len = elems.wmm_param_len + 2;
+ } else
+ bss->wmm_ie_len = 0;
+ } else if (!elems.wmm_param && bss->wmm_ie) {
+ kfree(bss->wmm_ie);
+ bss->wmm_ie = NULL;
+ bss->wmm_ie_len = 0;
+ }
+
+
+ bss->hw_mode = rx_status->phymode;
+ bss->channel = channel;
+ bss->freq = rx_status->freq;
+ if (channel != rx_status->channel &&
+ (bss->hw_mode == MODE_IEEE80211G ||
+ bss->hw_mode == MODE_IEEE80211B) &&
+ channel >= 1 && channel <= 14) {
+ static const int freq_list[] = {
+ 2412, 2417, 2422, 2427, 2432, 2437, 2442,
+ 2447, 2452, 2457, 2462, 2467, 2472, 2484
+ };
+ /* IEEE 802.11g/b mode can receive packets from neighboring
+ * channels, so map the channel into frequency. */
+ bss->freq = freq_list[channel - 1];
+ }
+ bss->timestamp = timestamp;
+ bss->last_update = jiffies;
+ bss->rssi = rx_status->ssi;
+ bss->signal = rx_status->signal;
+ bss->noise = rx_status->noise;
+ if (!beacon)
+ bss->probe_resp++;
+ ieee80211_rx_bss_put(dev, bss);
+}
+
+
+static void ieee80211_rx_mgmt_probe_resp(struct net_device *dev,
+ struct ieee80211_mgmt *mgmt,
+ size_t len,
+ struct ieee80211_rx_status *rx_status)
+{
+ ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 0);
+}
+
+
+static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
+ struct ieee80211_mgmt *mgmt,
+ size_t len,
+ struct ieee80211_rx_status *rx_status)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_if_sta *ifsta;
+ size_t baselen;
+ struct ieee802_11_elems elems;
+
+ ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 1);
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type != IEEE80211_IF_TYPE_STA)
+ return;
+ ifsta = &sdata->u.sta;
+
+ if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED) ||
+ memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0)
+ return;
+
+ /* Process beacon from the current BSS */
+ baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
+ if (baselen > len)
+ return;
+
+ if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen,
+ &elems) == ParseFailed)
+ return;
+
+ if (elems.erp_info && elems.erp_info_len >= 1)
+ ieee80211_handle_erp_ie(dev, elems.erp_info[0]);
+
+ if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
+ ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
+ elems.wmm_param_len);
+ }
+}
+
+
+static void ieee80211_rx_mgmt_probe_req(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len,
+ struct ieee80211_rx_status *rx_status)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ int tx_last_beacon;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *resp;
+ u8 *pos, *end;
+
+ if (sdata->type != IEEE80211_IF_TYPE_IBSS ||
+ ifsta->state != IEEE80211_IBSS_JOINED ||
+ len < 24 + 2 || !ifsta->probe_resp)
+ return;
+
+ if (local->ops->tx_last_beacon)
+ tx_last_beacon = local->ops->tx_last_beacon(local_to_hw(local));
+ else
+ tx_last_beacon = 1;
+
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ printk(KERN_DEBUG "%s: RX ProbeReq SA=" MAC_FMT " DA=" MAC_FMT " BSSID="
+ MAC_FMT " (tx_last_beacon=%d)\n",
+ dev->name, MAC_ARG(mgmt->sa), MAC_ARG(mgmt->da),
+ MAC_ARG(mgmt->bssid), tx_last_beacon);
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+
+ if (!tx_last_beacon)
+ return;
+
+ if (memcmp(mgmt->bssid, ifsta->bssid, ETH_ALEN) != 0 &&
+ memcmp(mgmt->bssid, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
+ return;
+
+ end = ((u8 *) mgmt) + len;
+ pos = mgmt->u.probe_req.variable;
+ if (pos[0] != WLAN_EID_SSID ||
+ pos + 2 + pos[1] > end) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: Invalid SSID IE in ProbeReq "
+ "from " MAC_FMT "\n",
+ dev->name, MAC_ARG(mgmt->sa));
+ }
+ return;
+ }
+ if (pos[1] != 0 &&
+ (pos[1] != ifsta->ssid_len ||
+ memcmp(pos + 2, ifsta->ssid, ifsta->ssid_len) != 0)) {
+ /* Ignore ProbeReq for foreign SSID */
+ return;
+ }
+
+ /* Reply with ProbeResp */
+ skb = skb_copy(ifsta->probe_resp, GFP_KERNEL);
+ if (!skb)
+ return;
+
+ resp = (struct ieee80211_mgmt *) skb->data;
+ memcpy(resp->da, mgmt->sa, ETH_ALEN);
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ printk(KERN_DEBUG "%s: Sending ProbeResp to " MAC_FMT "\n",
+ dev->name, MAC_ARG(resp->da));
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+ ieee80211_sta_tx(dev, skb, 0);
+}
+
+
+void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
+ struct ieee80211_rx_status *rx_status)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_if_sta *ifsta;
+ struct ieee80211_mgmt *mgmt;
+ u16 fc;
+
+ if (skb->len < 24)
+ goto fail;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ ifsta = &sdata->u.sta;
+
+ mgmt = (struct ieee80211_mgmt *) skb->data;
+ fc = le16_to_cpu(mgmt->frame_control);
+
+ switch (fc & IEEE80211_FCTL_STYPE) {
+ case IEEE80211_STYPE_PROBE_REQ:
+ case IEEE80211_STYPE_PROBE_RESP:
+ case IEEE80211_STYPE_BEACON:
+ memcpy(skb->cb, rx_status, sizeof(*rx_status));
+ case IEEE80211_STYPE_AUTH:
+ case IEEE80211_STYPE_ASSOC_RESP:
+ case IEEE80211_STYPE_REASSOC_RESP:
+ case IEEE80211_STYPE_DEAUTH:
+ case IEEE80211_STYPE_DISASSOC:
+ skb_queue_tail(&ifsta->skb_queue, skb);
+ queue_work(local->hw.workqueue, &ifsta->work);
+ return;
+ default:
+ printk(KERN_DEBUG "%s: received unknown management frame - "
+ "stype=%d\n", dev->name,
+ (fc & IEEE80211_FCTL_STYPE) >> 4);
+ break;
+ }
+
+ fail:
+ kfree_skb(skb);
+}
+
+
+static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev,
+ struct sk_buff *skb)
+{
+ struct ieee80211_rx_status *rx_status;
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_if_sta *ifsta;
+ struct ieee80211_mgmt *mgmt;
+ u16 fc;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ ifsta = &sdata->u.sta;
+
+ rx_status = (struct ieee80211_rx_status *) skb->cb;
+ mgmt = (struct ieee80211_mgmt *) skb->data;
+ fc = le16_to_cpu(mgmt->frame_control);
+
+ switch (fc & IEEE80211_FCTL_STYPE) {
+ case IEEE80211_STYPE_PROBE_REQ:
+ ieee80211_rx_mgmt_probe_req(dev, ifsta, mgmt, skb->len,
+ rx_status);
+ break;
+ case IEEE80211_STYPE_PROBE_RESP:
+ ieee80211_rx_mgmt_probe_resp(dev, mgmt, skb->len, rx_status);
+ break;
+ case IEEE80211_STYPE_BEACON:
+ ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len, rx_status);
+ break;
+ case IEEE80211_STYPE_AUTH:
+ ieee80211_rx_mgmt_auth(dev, ifsta, mgmt, skb->len);
+ break;
+ case IEEE80211_STYPE_ASSOC_RESP:
+ ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len, 0);
+ break;
+ case IEEE80211_STYPE_REASSOC_RESP:
+ ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len, 1);
+ break;
+ case IEEE80211_STYPE_DEAUTH:
+ ieee80211_rx_mgmt_deauth(dev, ifsta, mgmt, skb->len);
+ break;
+ case IEEE80211_STYPE_DISASSOC:
+ ieee80211_rx_mgmt_disassoc(dev, ifsta, mgmt, skb->len);
+ break;
+ }
+
+ kfree_skb(skb);
+}
+
+
+void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
+ struct ieee80211_rx_status *rx_status)
+{
+ struct ieee80211_mgmt *mgmt;
+ u16 fc;
+
+ if (skb->len < 24) {
+ dev_kfree_skb(skb);
+ return;
+ }
+
+ mgmt = (struct ieee80211_mgmt *) skb->data;
+ fc = le16_to_cpu(mgmt->frame_control);
+
+ if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
+ if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP) {
+ ieee80211_rx_mgmt_probe_resp(dev, mgmt,
+ skb->len, rx_status);
+ } else if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) {
+ ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len,
+ rx_status);
+ }
+ }
+
+ dev_kfree_skb(skb);
+}
+
+
+static int ieee80211_sta_active_ibss(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ int active = 0;
+ struct sta_info *sta;
+
+ read_lock_bh(&local->sta_lock);
+ list_for_each_entry(sta, &local->sta_list, list) {
+ if (sta->dev == dev &&
+ time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
+ jiffies)) {
+ active++;
+ break;
+ }
+ }
+ read_unlock_bh(&local->sta_lock);
+
+ return active;
+}
+
+
+static void ieee80211_sta_expire(struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta, *tmp;
+ LIST_HEAD(tmp_list);
+
+ write_lock_bh(&local->sta_lock);
+ list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
+ if (time_after(jiffies, sta->last_rx +
+ IEEE80211_IBSS_INACTIVITY_LIMIT)) {
+ printk(KERN_DEBUG "%s: expiring inactive STA " MAC_FMT
+ "\n", dev->name, MAC_ARG(sta->addr));
+ __sta_info_get(sta);
+ sta_info_remove(sta);
+ list_add(&sta->list, &tmp_list);
+ }
+ write_unlock_bh(&local->sta_lock);
+
+ list_for_each_entry_safe(sta, tmp, &tmp_list, list) {
+ sta_info_free(sta);
+ sta_info_put(sta);
+ }
+}
+
+
+static void ieee80211_sta_merge_ibss(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
+
+ ieee80211_sta_expire(dev);
+ if (ieee80211_sta_active_ibss(dev))
+ return;
+
+ printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
+ "IBSS networks with same SSID (merge)\n", dev->name);
+ ieee80211_sta_req_scan(dev, ifsta->ssid, ifsta->ssid_len);
+}
+
+
+void ieee80211_sta_timer(unsigned long data)
+{
+ struct ieee80211_sub_if_data *sdata =
+ (struct ieee80211_sub_if_data *) data;
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct ieee80211_local *local = wdev_priv(&sdata->wdev);
+
+ set_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
+ queue_work(local->hw.workqueue, &ifsta->work);
+}
+
+
+void ieee80211_sta_work(struct work_struct *work)
+{
+ struct ieee80211_sub_if_data *sdata =
+ container_of(work, struct ieee80211_sub_if_data, u.sta.work);
+ struct net_device *dev = sdata->dev;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_if_sta *ifsta;
+ struct sk_buff *skb;
+
+ if (!netif_running(dev))
+ return;
+
+ if (local->sta_scanning)
+ return;
+
+ if (sdata->type != IEEE80211_IF_TYPE_STA &&
+ sdata->type != IEEE80211_IF_TYPE_IBSS) {
+ printk(KERN_DEBUG "%s: ieee80211_sta_work: non-STA interface "
+ "(type=%d)\n", dev->name, sdata->type);
+ return;
+ }
+ ifsta = &sdata->u.sta;
+
+ while ((skb = skb_dequeue(&ifsta->skb_queue)))
+ ieee80211_sta_rx_queued_mgmt(dev, skb);
+
+ if (ifsta->state != IEEE80211_AUTHENTICATE &&
+ ifsta->state != IEEE80211_ASSOCIATE &&
+ test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
+ ieee80211_sta_start_scan(dev, NULL, 0);
+ return;
+ }
+
+ if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) {
+ if (ieee80211_sta_config_auth(dev, ifsta))
+ return;
+ clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
+ } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request))
+ return;
+
+ switch (ifsta->state) {
+ case IEEE80211_DISABLED:
+ break;
+ case IEEE80211_AUTHENTICATE:
+ ieee80211_authenticate(dev, ifsta);
+ break;
+ case IEEE80211_ASSOCIATE:
+ ieee80211_associate(dev, ifsta);
+ break;
+ case IEEE80211_ASSOCIATED:
+ ieee80211_associated(dev, ifsta);
+ break;
+ case IEEE80211_IBSS_SEARCH:
+ ieee80211_sta_find_ibss(dev, ifsta);
+ break;
+ case IEEE80211_IBSS_JOINED:
+ ieee80211_sta_merge_ibss(dev, ifsta);
+ break;
+ default:
+ printk(KERN_DEBUG "ieee80211_sta_work: Unknown state %d\n",
+ ifsta->state);
+ break;
+ }
+
+ if (ieee80211_privacy_mismatch(dev, ifsta)) {
+ printk(KERN_DEBUG "%s: privacy configuration mismatch and "
+ "mixed-cell disabled - disassociate\n", dev->name);
+
+ ieee80211_send_disassoc(dev, ifsta, WLAN_REASON_UNSPECIFIED);
+ ieee80211_set_disassoc(dev, ifsta, 0);
+ }
+}
+
+
+static void ieee80211_sta_reset_auth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ if (local->ops->reset_tsf) {
+ /* Reset own TSF to allow time synchronization work. */
+ local->ops->reset_tsf(local_to_hw(local));
+ }
+
+ ifsta->wmm_last_param_set = -1; /* allow any WMM update */
+
+
+ if (ifsta->auth_algs & IEEE80211_AUTH_ALG_OPEN)
+ ifsta->auth_alg = WLAN_AUTH_OPEN;
+ else if (ifsta->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
+ ifsta->auth_alg = WLAN_AUTH_SHARED_KEY;
+ else if (ifsta->auth_algs & IEEE80211_AUTH_ALG_LEAP)
+ ifsta->auth_alg = WLAN_AUTH_LEAP;
+ else
+ ifsta->auth_alg = WLAN_AUTH_OPEN;
+ printk(KERN_DEBUG "%s: Initial auth_alg=%d\n", dev->name,
+ ifsta->auth_alg);
+ ifsta->auth_transaction = -1;
+ ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
+ ifsta->auth_tries = ifsta->assoc_tries = 0;
+ netif_carrier_off(dev);
+}
+
+
+void ieee80211_sta_req_auth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ if (sdata->type != IEEE80211_IF_TYPE_STA)
+ return;
+
+ if ((ifsta->flags & (IEEE80211_STA_BSSID_SET |
+ IEEE80211_STA_AUTO_BSSID_SEL)) &&
+ (ifsta->flags & (IEEE80211_STA_SSID_SET |
+ IEEE80211_STA_AUTO_SSID_SEL))) {
+ set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
+ queue_work(local->hw.workqueue, &ifsta->work);
+ }
+}
+
+static int ieee80211_sta_match_ssid(struct ieee80211_if_sta *ifsta,
+ const char *ssid, int ssid_len)
+{
+ int tmp, hidden_ssid;
+
+ if (!memcmp(ifsta->ssid, ssid, ssid_len))
+ return 1;
+
+ if (ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL)
+ return 0;
+
+ hidden_ssid = 1;
+ tmp = ssid_len;
+ while (tmp--) {
+ if (ssid[tmp] != '\0') {
+ hidden_ssid = 0;
+ break;
+ }
+ }
+
+ if (hidden_ssid && ifsta->ssid_len == ssid_len)
+ return 1;
+
+ if (ssid_len == 1 && ssid[0] == ' ')
+ return 1;
+
+ return 0;
+}
+
+static int ieee80211_sta_config_auth(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_sta_bss *bss, *selected = NULL;
+ int top_rssi = 0, freq;
+
+ if (!(ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
+ IEEE80211_STA_AUTO_BSSID_SEL | IEEE80211_STA_AUTO_CHANNEL_SEL))) {
+ ifsta->state = IEEE80211_AUTHENTICATE;
+ ieee80211_sta_reset_auth(dev, ifsta);
+ return 0;
+ }
+
+ spin_lock_bh(&local->sta_bss_lock);
+ freq = local->oper_channel->freq;
+ list_for_each_entry(bss, &local->sta_bss_list, list) {
+ if (!(bss->capability & WLAN_CAPABILITY_ESS))
+ continue;
+
+ if (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^
+ !!sdata->default_key)
+ continue;
+
+ if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) &&
+ bss->freq != freq)
+ continue;
+
+ if (!(ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL) &&
+ memcmp(bss->bssid, ifsta->bssid, ETH_ALEN))
+ continue;
+
+ if (!(ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) &&
+ !ieee80211_sta_match_ssid(ifsta, bss->ssid, bss->ssid_len))
+ continue;
+
+ if (!selected || top_rssi < bss->rssi) {
+ selected = bss;
+ top_rssi = bss->rssi;
+ }
+ }
+ if (selected)
+ atomic_inc(&selected->users);
+ spin_unlock_bh(&local->sta_bss_lock);
+
+ if (selected) {
+ ieee80211_set_channel(local, -1, selected->freq);
+ if (!(ifsta->flags & IEEE80211_STA_SSID_SET))
+ ieee80211_sta_set_ssid(dev, selected->ssid,
+ selected->ssid_len);
+ ieee80211_sta_set_bssid(dev, selected->bssid);
+ ieee80211_rx_bss_put(dev, selected);
+ ifsta->state = IEEE80211_AUTHENTICATE;
+ ieee80211_sta_reset_auth(dev, ifsta);
+ return 0;
+ } else {
+ if (ifsta->state != IEEE80211_AUTHENTICATE) {
+ if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL)
+ ieee80211_sta_start_scan(dev, NULL, 0);
+ else
+ ieee80211_sta_start_scan(dev, ifsta->ssid,
+ ifsta->ssid_len);
+ ifsta->state = IEEE80211_AUTHENTICATE;
+ set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
+ } else
+ ifsta->state = IEEE80211_DISABLED;
+ }
+ return -1;
+}
+
+static int ieee80211_sta_join_ibss(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_sta_bss *bss)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ int res, rates, i, j;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+ struct ieee80211_tx_control control;
+ struct ieee80211_rate *rate;
+ struct ieee80211_hw_mode *mode;
+ struct rate_control_extra extra;
+ u8 *pos;
+ struct ieee80211_sub_if_data *sdata;
+
+ /* Remove possible STA entries from other IBSS networks. */
+ sta_info_flush(local, NULL);
+
+ if (local->ops->reset_tsf) {
+ /* Reset own TSF to allow time synchronization work. */
+ local->ops->reset_tsf(local_to_hw(local));
+ }
+ memcpy(ifsta->bssid, bss->bssid, ETH_ALEN);
+ res = ieee80211_if_config(dev);
+ if (res)
+ return res;
+
+ local->hw.conf.beacon_int = bss->beacon_int >= 10 ? bss->beacon_int : 10;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ sdata->drop_unencrypted = bss->capability &
+ WLAN_CAPABILITY_PRIVACY ? 1 : 0;
+
+ res = ieee80211_set_channel(local, -1, bss->freq);
+
+ if (!(local->oper_channel->flag & IEEE80211_CHAN_W_IBSS)) {
+ printk(KERN_DEBUG "%s: IBSS not allowed on channel %d "
+ "(%d MHz)\n", dev->name, local->hw.conf.channel,
+ local->hw.conf.freq);
+ return -1;
+ }
+
+ /* Set beacon template based on scan results */
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
+ do {
+ if (!skb)
+ break;
+
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ mgmt = (struct ieee80211_mgmt *)
+ skb_put(skb, 24 + sizeof(mgmt->u.beacon));
+ memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
+ mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_BEACON);
+ memset(mgmt->da, 0xff, ETH_ALEN);
+ memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+ mgmt->u.beacon.beacon_int =
+ cpu_to_le16(local->hw.conf.beacon_int);
+ mgmt->u.beacon.capab_info = cpu_to_le16(bss->capability);
+
+ pos = skb_put(skb, 2 + ifsta->ssid_len);
+ *pos++ = WLAN_EID_SSID;
+ *pos++ = ifsta->ssid_len;
+ memcpy(pos, ifsta->ssid, ifsta->ssid_len);
+
+ rates = bss->supp_rates_len;
+ if (rates > 8)
+ rates = 8;
+ pos = skb_put(skb, 2 + rates);
+ *pos++ = WLAN_EID_SUPP_RATES;
+ *pos++ = rates;
+ memcpy(pos, bss->supp_rates, rates);
+
+ pos = skb_put(skb, 2 + 1);
+ *pos++ = WLAN_EID_DS_PARAMS;
+ *pos++ = 1;
+ *pos++ = bss->channel;
+
+ pos = skb_put(skb, 2 + 2);
+ *pos++ = WLAN_EID_IBSS_PARAMS;
+ *pos++ = 2;
+ /* FIX: set ATIM window based on scan results */
+ *pos++ = 0;
+ *pos++ = 0;
+
+ if (bss->supp_rates_len > 8) {
+ rates = bss->supp_rates_len - 8;
+ pos = skb_put(skb, 2 + rates);
+ *pos++ = WLAN_EID_EXT_SUPP_RATES;
+ *pos++ = rates;
+ memcpy(pos, &bss->supp_rates[8], rates);
+ }
+
+ memset(&control, 0, sizeof(control));
+ memset(&extra, 0, sizeof(extra));
+ extra.mode = local->oper_hw_mode;
+ rate = rate_control_get_rate(local, dev, skb, &extra);
+ if (!rate) {
+ printk(KERN_DEBUG "%s: Failed to determine TX rate "
+ "for IBSS beacon\n", dev->name);
+ break;
+ }
+ control.tx_rate =
+ ((sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
+ (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
+ rate->val2 : rate->val;
+ control.antenna_sel_tx = local->hw.conf.antenna_sel_tx;
+ control.power_level = local->hw.conf.power_level;
+ control.flags |= IEEE80211_TXCTL_NO_ACK;
+ control.retry_limit = 1;
+
+ ifsta->probe_resp = skb_copy(skb, GFP_ATOMIC);
+ if (ifsta->probe_resp) {
+ mgmt = (struct ieee80211_mgmt *)
+ ifsta->probe_resp->data;
+ mgmt->frame_control =
+ IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_PROBE_RESP);
+ } else {
+ printk(KERN_DEBUG "%s: Could not allocate ProbeResp "
+ "template for IBSS\n", dev->name);
+ }
+
+ if (local->ops->beacon_update &&
+ local->ops->beacon_update(local_to_hw(local),
+ skb, &control) == 0) {
+ printk(KERN_DEBUG "%s: Configured IBSS beacon "
+ "template based on scan results\n", dev->name);
+ skb = NULL;
+ }
+
+ rates = 0;
+ mode = local->oper_hw_mode;
+ for (i = 0; i < bss->supp_rates_len; i++) {
+ int bitrate = (bss->supp_rates[i] & 0x7f) * 5;
+ for (j = 0; j < mode->num_rates; j++)
+ if (mode->rates[j].rate == bitrate)
+ rates |= BIT(j);
+ }
+ ifsta->supp_rates_bits = rates;
+ } while (0);
+
+ if (skb) {
+ printk(KERN_DEBUG "%s: Failed to configure IBSS beacon "
+ "template\n", dev->name);
+ dev_kfree_skb(skb);
+ }
+
+ ifsta->state = IEEE80211_IBSS_JOINED;
+ mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
+
+ ieee80211_rx_bss_put(dev, bss);
+
+ return res;
+}
+
+
+static int ieee80211_sta_create_ibss(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss;
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_hw_mode *mode;
+ u8 bssid[ETH_ALEN], *pos;
+ int i;
+
+#if 0
+ /* Easier testing, use fixed BSSID. */
+ memset(bssid, 0xfe, ETH_ALEN);
+#else
+ /* Generate random, not broadcast, locally administered BSSID. Mix in
+ * own MAC address to make sure that devices that do not have proper
+ * random number generator get different BSSID. */
+ get_random_bytes(bssid, ETH_ALEN);
+ for (i = 0; i < ETH_ALEN; i++)
+ bssid[i] ^= dev->dev_addr[i];
+ bssid[0] &= ~0x01;
+ bssid[0] |= 0x02;
+#endif
+
+ printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID " MAC_FMT "\n",
+ dev->name, MAC_ARG(bssid));
+
+ bss = ieee80211_rx_bss_add(dev, bssid);
+ if (!bss)
+ return -ENOMEM;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ mode = local->oper_hw_mode;
+
+ if (local->hw.conf.beacon_int == 0)
+ local->hw.conf.beacon_int = 100;
+ bss->beacon_int = local->hw.conf.beacon_int;
+ bss->hw_mode = local->hw.conf.phymode;
+ bss->channel = local->hw.conf.channel;
+ bss->freq = local->hw.conf.freq;
+ bss->last_update = jiffies;
+ bss->capability = WLAN_CAPABILITY_IBSS;
+ if (sdata->default_key) {
+ bss->capability |= WLAN_CAPABILITY_PRIVACY;
+ } else
+ sdata->drop_unencrypted = 0;
+ bss->supp_rates_len = mode->num_rates;
+ pos = bss->supp_rates;
+ for (i = 0; i < mode->num_rates; i++) {
+ int rate = mode->rates[i].rate;
+ *pos++ = (u8) (rate / 5);
+ }
+
+ return ieee80211_sta_join_ibss(dev, ifsta, bss);
+}
+
+
+static int ieee80211_sta_find_ibss(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sta_bss *bss;
+ int found = 0;
+ u8 bssid[ETH_ALEN];
+ int active_ibss;
+
+ if (ifsta->ssid_len == 0)
+ return -EINVAL;
+
+ active_ibss = ieee80211_sta_active_ibss(dev);
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n",
+ dev->name, active_ibss);
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+ spin_lock_bh(&local->sta_bss_lock);
+ list_for_each_entry(bss, &local->sta_bss_list, list) {
+ if (ifsta->ssid_len != bss->ssid_len ||
+ memcmp(ifsta->ssid, bss->ssid, bss->ssid_len) != 0
+ || !(bss->capability & WLAN_CAPABILITY_IBSS))
+ continue;
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ printk(KERN_DEBUG " bssid=" MAC_FMT " found\n",
+ MAC_ARG(bss->bssid));
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+ memcpy(bssid, bss->bssid, ETH_ALEN);
+ found = 1;
+ if (active_ibss || memcmp(bssid, ifsta->bssid, ETH_ALEN) != 0)
+ break;
+ }
+ spin_unlock_bh(&local->sta_bss_lock);
+
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ printk(KERN_DEBUG " sta_find_ibss: selected " MAC_FMT " current "
+ MAC_FMT "\n", MAC_ARG(bssid), MAC_ARG(ifsta->bssid));
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+ if (found && memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0 &&
+ (bss = ieee80211_rx_bss_get(dev, bssid))) {
+ printk(KERN_DEBUG "%s: Selected IBSS BSSID " MAC_FMT
+ " based on configured SSID\n",
+ dev->name, MAC_ARG(bssid));
+ return ieee80211_sta_join_ibss(dev, ifsta, bss);
+ }
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+ printk(KERN_DEBUG " did not try to join ibss\n");
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+
+ /* Selected IBSS not found in current scan results - try to scan */
+ if (ifsta->state == IEEE80211_IBSS_JOINED &&
+ !ieee80211_sta_active_ibss(dev)) {
+ mod_timer(&ifsta->timer, jiffies +
+ IEEE80211_IBSS_MERGE_INTERVAL);
+ } else if (time_after(jiffies, local->last_scan_completed +
+ IEEE80211_SCAN_INTERVAL)) {
+ printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
+ "join\n", dev->name);
+ return ieee80211_sta_req_scan(dev, ifsta->ssid,
+ ifsta->ssid_len);
+ } else if (ifsta->state != IEEE80211_IBSS_JOINED) {
+ int interval = IEEE80211_SCAN_INTERVAL;
+
+ if (time_after(jiffies, ifsta->ibss_join_req +
+ IEEE80211_IBSS_JOIN_TIMEOUT)) {
+ if ((ifsta->flags & IEEE80211_STA_CREATE_IBSS) &&
+ local->oper_channel->flag & IEEE80211_CHAN_W_IBSS)
+ return ieee80211_sta_create_ibss(dev, ifsta);
+ if (ifsta->flags & IEEE80211_STA_CREATE_IBSS) {
+ printk(KERN_DEBUG "%s: IBSS not allowed on the"
+ " configured channel %d (%d MHz)\n",
+ dev->name, local->hw.conf.channel,
+ local->hw.conf.freq);
+ }
+
+ /* No IBSS found - decrease scan interval and continue
+ * scanning. */
+ interval = IEEE80211_SCAN_INTERVAL_SLOW;
+ }
+
+ ifsta->state = IEEE80211_IBSS_SEARCH;
+ mod_timer(&ifsta->timer, jiffies + interval);
+ return 0;
+ }
+
+ return 0;
+}
+
+
+int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_if_sta *ifsta;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ if (len > IEEE80211_MAX_SSID_LEN)
+ return -EINVAL;
+
+ /* TODO: This should always be done for IBSS, even if IEEE80211_QOS is
+ * not defined. */
+ if (local->ops->conf_tx) {
+ struct ieee80211_tx_queue_params qparam;
+ int i;
+
+ memset(&qparam, 0, sizeof(qparam));
+ /* TODO: are these ok defaults for all hw_modes? */
+ qparam.aifs = 2;
+ qparam.cw_min =
+ local->hw.conf.phymode == MODE_IEEE80211B ? 31 : 15;
+ qparam.cw_max = 1023;
+ qparam.burst_time = 0;
+ for (i = IEEE80211_TX_QUEUE_DATA0; i < NUM_TX_DATA_QUEUES; i++)
+ {
+ local->ops->conf_tx(local_to_hw(local),
+ i + IEEE80211_TX_QUEUE_DATA0,
+ &qparam);
+ }
+ /* IBSS uses different parameters for Beacon sending */
+ qparam.cw_min++;
+ qparam.cw_min *= 2;
+ qparam.cw_min--;
+ local->ops->conf_tx(local_to_hw(local),
+ IEEE80211_TX_QUEUE_BEACON, &qparam);
+ }
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ ifsta = &sdata->u.sta;
+
+ if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0)
+ ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
+ memcpy(ifsta->ssid, ssid, len);
+ memset(ifsta->ssid + len, 0, IEEE80211_MAX_SSID_LEN - len);
+ ifsta->ssid_len = len;
+
+ if (len)
+ ifsta->flags |= IEEE80211_STA_SSID_SET;
+ else
+ ifsta->flags &= ~IEEE80211_STA_SSID_SET;
+ if (sdata->type == IEEE80211_IF_TYPE_IBSS &&
+ !(ifsta->flags & IEEE80211_STA_BSSID_SET)) {
+ ifsta->ibss_join_req = jiffies;
+ ifsta->state = IEEE80211_IBSS_SEARCH;
+ return ieee80211_sta_find_ibss(dev, ifsta);
+ }
+ return 0;
+}
+
+
+int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ memcpy(ssid, ifsta->ssid, ifsta->ssid_len);
+ *len = ifsta->ssid_len;
+ return 0;
+}
+
+
+int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_if_sta *ifsta;
+ int res;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ ifsta = &sdata->u.sta;
+
+ if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) {
+ memcpy(ifsta->bssid, bssid, ETH_ALEN);
+ res = ieee80211_if_config(dev);
+ if (res) {
+ printk(KERN_DEBUG "%s: Failed to config new BSSID to "
+ "the low-level driver\n", dev->name);
+ return res;
+ }
+ }
+
+ if (is_valid_ether_addr(bssid))
+ ifsta->flags |= IEEE80211_STA_BSSID_SET;
+ else
+ ifsta->flags &= ~IEEE80211_STA_BSSID_SET;
+
+ return 0;
+}
+
+
+static void ieee80211_send_nullfunc(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata,
+ int powersave)
+{
+ struct sk_buff *skb;
+ struct ieee80211_hdr *nullfunc;
+ u16 fc;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
+ "frame\n", sdata->dev->name);
+ return;
+ }
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
+ memset(nullfunc, 0, 24);
+ fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
+ IEEE80211_FCTL_TODS;
+ if (powersave)
+ fc |= IEEE80211_FCTL_PM;
+ nullfunc->frame_control = cpu_to_le16(fc);
+ memcpy(nullfunc->addr1, sdata->u.sta.bssid, ETH_ALEN);
+ memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
+ memcpy(nullfunc->addr3, sdata->u.sta.bssid, ETH_ALEN);
+
+ ieee80211_sta_tx(sdata->dev, skb, 0);
+}
+
+
+void ieee80211_scan_completed(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct net_device *dev = local->scan_dev;
+ struct ieee80211_sub_if_data *sdata;
+ union iwreq_data wrqu;
+
+ local->last_scan_completed = jiffies;
+ wmb();
+ local->sta_scanning = 0;
+
+ if (ieee80211_hw_config(local))
+ printk(KERN_DEBUG "%s: failed to restore operational"
+ "channel after scan\n", dev->name);
+
+
+ netif_tx_lock_bh(local->mdev);
+ local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC;
+ local->ops->configure_filter(local_to_hw(local),
+ FIF_BCN_PRBRESP_PROMISC,
+ &local->filter_flags,
+ local->mdev->mc_count,
+ local->mdev->mc_list);
+
+ netif_tx_unlock_bh(local->mdev);
+
+ memset(&wrqu, 0, sizeof(wrqu));
+ wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+
+ /* No need to wake the master device. */
+ if (sdata->dev == local->mdev)
+ continue;
+
+ if (sdata->type == IEEE80211_IF_TYPE_STA) {
+ if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)
+ ieee80211_send_nullfunc(local, sdata, 0);
+ ieee80211_sta_timer((unsigned long)sdata);
+ }
+
+ netif_wake_queue(sdata->dev);
+ }
+ rcu_read_unlock();
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
+ (!ifsta->state == IEEE80211_IBSS_JOINED &&
+ !ieee80211_sta_active_ibss(dev)))
+ ieee80211_sta_find_ibss(dev, ifsta);
+ }
+}
+EXPORT_SYMBOL(ieee80211_scan_completed);
+
+void ieee80211_sta_scan_work(struct work_struct *work)
+{
+ struct ieee80211_local *local =
+ container_of(work, struct ieee80211_local, scan_work.work);
+ struct net_device *dev = local->scan_dev;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_hw_mode *mode;
+ struct ieee80211_channel *chan;
+ int skip;
+ unsigned long next_delay = 0;
+
+ if (!local->sta_scanning)
+ return;
+
+ switch (local->scan_state) {
+ case SCAN_SET_CHANNEL:
+ mode = local->scan_hw_mode;
+ if (local->scan_hw_mode->list.next == &local->modes_list &&
+ local->scan_channel_idx >= mode->num_channels) {
+ ieee80211_scan_completed(local_to_hw(local));
+ return;
+ }
+ skip = !(local->enabled_modes & (1 << mode->mode));
+ chan = &mode->channels[local->scan_channel_idx];
+ if (!(chan->flag & IEEE80211_CHAN_W_SCAN) ||
+ (sdata->type == IEEE80211_IF_TYPE_IBSS &&
+ !(chan->flag & IEEE80211_CHAN_W_IBSS)) ||
+ (local->hw_modes & local->enabled_modes &
+ (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
+ skip = 1;
+
+ if (!skip) {
+#if 0
+ printk(KERN_DEBUG "%s: scan channel %d (%d MHz)\n",
+ dev->name, chan->chan, chan->freq);
+#endif
+
+ local->scan_channel = chan;
+ if (ieee80211_hw_config(local)) {
+ printk(KERN_DEBUG "%s: failed to set channel "
+ "%d (%d MHz) for scan\n", dev->name,
+ chan->chan, chan->freq);
+ skip = 1;
+ }
+ }
+
+ local->scan_channel_idx++;
+ if (local->scan_channel_idx >= local->scan_hw_mode->num_channels) {
+ if (local->scan_hw_mode->list.next != &local->modes_list) {
+ local->scan_hw_mode = list_entry(local->scan_hw_mode->list.next,
+ struct ieee80211_hw_mode,
+ list);
+ local->scan_channel_idx = 0;
+ }
+ }
+
+ if (skip)
+ break;
+
+ next_delay = IEEE80211_PROBE_DELAY +
+ usecs_to_jiffies(local->hw.channel_change_time);
+ local->scan_state = SCAN_SEND_PROBE;
+ break;
+ case SCAN_SEND_PROBE:
+ if (local->scan_channel->flag & IEEE80211_CHAN_W_ACTIVE_SCAN) {
+ ieee80211_send_probe_req(dev, NULL, local->scan_ssid,
+ local->scan_ssid_len);
+ next_delay = IEEE80211_CHANNEL_TIME;
+ } else
+ next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
+ local->scan_state = SCAN_SET_CHANNEL;
+ break;
+ }
+
+ if (local->sta_scanning)
+ queue_delayed_work(local->hw.workqueue, &local->scan_work,
+ next_delay);
+}
+
+
+static int ieee80211_sta_start_scan(struct net_device *dev,
+ u8 *ssid, size_t ssid_len)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata;
+
+ if (ssid_len > IEEE80211_MAX_SSID_LEN)
+ return -EINVAL;
+
+ /* MLME-SCAN.request (page 118) page 144 (11.1.3.1)
+ * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS
+ * BSSID: MACAddress
+ * SSID
+ * ScanType: ACTIVE, PASSIVE
+ * ProbeDelay: delay (in microseconds) to be used prior to transmitting
+ * a Probe frame during active scanning
+ * ChannelList
+ * MinChannelTime (>= ProbeDelay), in TU
+ * MaxChannelTime: (>= MinChannelTime), in TU
+ */
+
+ /* MLME-SCAN.confirm
+ * BSSDescriptionSet
+ * ResultCode: SUCCESS, INVALID_PARAMETERS
+ */
+
+ if (local->sta_scanning) {
+ if (local->scan_dev == dev)
+ return 0;
+ return -EBUSY;
+ }
+
+ if (local->ops->hw_scan) {
+ int rc = local->ops->hw_scan(local_to_hw(local),
+ ssid, ssid_len);
+ if (!rc) {
+ local->sta_scanning = 1;
+ local->scan_dev = dev;
+ }
+ return rc;
+ }
+
+ local->sta_scanning = 1;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+
+ /* Don't stop the master interface, otherwise we can't transmit
+ * probes! */
+ if (sdata->dev == local->mdev)
+ continue;
+
+ netif_stop_queue(sdata->dev);
+ if (sdata->type == IEEE80211_IF_TYPE_STA &&
+ (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED))
+ ieee80211_send_nullfunc(local, sdata, 1);
+ }
+ rcu_read_unlock();
+
+ if (ssid) {
+ local->scan_ssid_len = ssid_len;
+ memcpy(local->scan_ssid, ssid, ssid_len);
+ } else
+ local->scan_ssid_len = 0;
+ local->scan_state = SCAN_SET_CHANNEL;
+ local->scan_hw_mode = list_entry(local->modes_list.next,
+ struct ieee80211_hw_mode,
+ list);
+ local->scan_channel_idx = 0;
+ local->scan_dev = dev;
+
+ netif_tx_lock_bh(local->mdev);
+ local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
+ local->ops->configure_filter(local_to_hw(local),
+ FIF_BCN_PRBRESP_PROMISC,
+ &local->filter_flags,
+ local->mdev->mc_count,
+ local->mdev->mc_list);
+ netif_tx_unlock_bh(local->mdev);
+
+ /* TODO: start scan as soon as all nullfunc frames are ACKed */
+ queue_delayed_work(local->hw.workqueue, &local->scan_work,
+ IEEE80211_CHANNEL_TIME);
+
+ return 0;
+}
+
+
+int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+
+ if (sdata->type != IEEE80211_IF_TYPE_STA)
+ return ieee80211_sta_start_scan(dev, ssid, ssid_len);
+
+ if (local->sta_scanning) {
+ if (local->scan_dev == dev)
+ return 0;
+ return -EBUSY;
+ }
+
+ set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request);
+ queue_work(local->hw.workqueue, &ifsta->work);
+ return 0;
+}
+
+static char *
+ieee80211_sta_scan_result(struct net_device *dev,
+ struct ieee80211_sta_bss *bss,
+ char *current_ev, char *end_buf)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct iw_event iwe;
+
+ if (time_after(jiffies,
+ bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE))
+ return current_ev;
+
+ if (!(local->enabled_modes & (1 << bss->hw_mode)))
+ return current_ev;
+
+ if (local->scan_flags & IEEE80211_SCAN_WPA_ONLY &&
+ !bss->wpa_ie && !bss->rsn_ie)
+ return current_ev;
+
+ if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID &&
+ (local->scan_ssid_len != bss->ssid_len ||
+ memcmp(local->scan_ssid, bss->ssid, bss->ssid_len) != 0))
+ return current_ev;
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWAP;
+ iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
+ memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
+ current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
+ IW_EV_ADDR_LEN);
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWESSID;
+ iwe.u.data.length = bss->ssid_len;
+ iwe.u.data.flags = 1;
+ current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
+ bss->ssid);
+
+ if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWMODE;
+ if (bss->capability & WLAN_CAPABILITY_ESS)
+ iwe.u.mode = IW_MODE_MASTER;
+ else
+ iwe.u.mode = IW_MODE_ADHOC;
+ current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
+ IW_EV_UINT_LEN);
+ }
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWFREQ;
+ iwe.u.freq.m = bss->channel;
+ iwe.u.freq.e = 0;
+ current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
+ IW_EV_FREQ_LEN);
+ iwe.u.freq.m = bss->freq * 100000;
+ iwe.u.freq.e = 1;
+ current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
+ IW_EV_FREQ_LEN);
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVQUAL;
+ iwe.u.qual.qual = bss->signal;
+ iwe.u.qual.level = bss->rssi;
+ iwe.u.qual.noise = bss->noise;
+ iwe.u.qual.updated = local->wstats_flags;
+ current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
+ IW_EV_QUAL_LEN);
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWENCODE;
+ if (bss->capability & WLAN_CAPABILITY_PRIVACY)
+ iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
+ else
+ iwe.u.data.flags = IW_ENCODE_DISABLED;
+ iwe.u.data.length = 0;
+ current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, "");
+
+ if (bss && bss->wpa_ie) {
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVGENIE;
+ iwe.u.data.length = bss->wpa_ie_len;
+ current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
+ bss->wpa_ie);
+ }
+
+ if (bss && bss->rsn_ie) {
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVGENIE;
+ iwe.u.data.length = bss->rsn_ie_len;
+ current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
+ bss->rsn_ie);
+ }
+
+ if (bss && bss->supp_rates_len > 0) {
+ /* display all supported rates in readable format */
+ char *p = current_ev + IW_EV_LCP_LEN;
+ int i;
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = SIOCGIWRATE;
+ /* Those two flags are ignored... */
+ iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
+
+ for (i = 0; i < bss->supp_rates_len; i++) {
+ iwe.u.bitrate.value = ((bss->supp_rates[i] &
+ 0x7f) * 500000);
+ p = iwe_stream_add_value(current_ev, p,
+ end_buf, &iwe, IW_EV_PARAM_LEN);
+ }
+ current_ev = p;
+ }
+
+ if (bss) {
+ char *buf;
+ buf = kmalloc(30, GFP_ATOMIC);
+ if (buf) {
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVCUSTOM;
+ sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->timestamp));
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(current_ev, end_buf,
+ &iwe, buf);
+ kfree(buf);
+ }
+ }
+
+ do {
+ char *buf;
+
+ if (!(local->scan_flags & IEEE80211_SCAN_EXTRA_INFO))
+ break;
+
+ buf = kmalloc(100, GFP_ATOMIC);
+ if (!buf)
+ break;
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVCUSTOM;
+ sprintf(buf, "bcn_int=%d", bss->beacon_int);
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
+ buf);
+
+ memset(&iwe, 0, sizeof(iwe));
+ iwe.cmd = IWEVCUSTOM;
+ sprintf(buf, "capab=0x%04x", bss->capability);
+ iwe.u.data.length = strlen(buf);
+ current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
+ buf);
+
+ kfree(buf);
+ break;
+ } while (0);
+
+ return current_ev;
+}
+
+
+int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ char *current_ev = buf;
+ char *end_buf = buf + len;
+ struct ieee80211_sta_bss *bss;
+
+ spin_lock_bh(&local->sta_bss_lock);
+ list_for_each_entry(bss, &local->sta_bss_list, list) {
+ if (buf + len - current_ev <= IW_EV_ADDR_LEN) {
+ spin_unlock_bh(&local->sta_bss_lock);
+ return -E2BIG;
+ }
+ current_ev = ieee80211_sta_scan_result(dev, bss, current_ev,
+ end_buf);
+ }
+ spin_unlock_bh(&local->sta_bss_lock);
+ return current_ev - buf;
+}
+
+
+int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ kfree(ifsta->extra_ie);
+ if (len == 0) {
+ ifsta->extra_ie = NULL;
+ ifsta->extra_ie_len = 0;
+ return 0;
+ }
+ ifsta->extra_ie = kmalloc(len, GFP_KERNEL);
+ if (!ifsta->extra_ie) {
+ ifsta->extra_ie_len = 0;
+ return -ENOMEM;
+ }
+ memcpy(ifsta->extra_ie, ie, len);
+ ifsta->extra_ie_len = len;
+ return 0;
+}
+
+
+struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
+ struct sk_buff *skb, u8 *bssid,
+ u8 *addr)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ /* TODO: Could consider removing the least recently used entry and
+ * allow new one to be added. */
+ if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: No room for a new IBSS STA "
+ "entry " MAC_FMT "\n", dev->name, MAC_ARG(addr));
+ }
+ return NULL;
+ }
+
+ printk(KERN_DEBUG "%s: Adding new IBSS station " MAC_FMT " (dev=%s)\n",
+ wiphy_name(local->hw.wiphy), MAC_ARG(addr), dev->name);
+
+ sta = sta_info_add(local, dev, addr, GFP_ATOMIC);
+ if (!sta)
+ return NULL;
+
+ sta->supp_rates = sdata->u.sta.supp_rates_bits;
+
+ rate_control_rate_init(sta, local);
+
+ return sta; /* caller will call sta_info_put() */
+}
+
+
+int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+
+ printk(KERN_DEBUG "%s: deauthenticate(reason=%d)\n",
+ dev->name, reason);
+
+ if (sdata->type != IEEE80211_IF_TYPE_STA &&
+ sdata->type != IEEE80211_IF_TYPE_IBSS)
+ return -EINVAL;
+
+ ieee80211_send_deauth(dev, ifsta, reason);
+ ieee80211_set_disassoc(dev, ifsta, 1);
+ return 0;
+}
+
+
+int ieee80211_sta_disassociate(struct net_device *dev, u16 reason)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+
+ printk(KERN_DEBUG "%s: disassociate(reason=%d)\n",
+ dev->name, reason);
+
+ if (sdata->type != IEEE80211_IF_TYPE_STA)
+ return -EINVAL;
+
+ if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED))
+ return -1;
+
+ ieee80211_send_disassoc(dev, ifsta, reason);
+ ieee80211_set_disassoc(dev, ifsta, 0);
+ return 0;
+}
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/if_ether.h>
+#include <linux/etherdevice.h>
+#include <linux/list.h>
+#include <linux/rcupdate.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "debugfs_key.h"
+#include "aes_ccm.h"
+
+
+/*
+ * Key handling basics
+ *
+ * Key handling in mac80211 is done based on per-interface (sub_if_data)
+ * keys and per-station keys. Since each station belongs to an interface,
+ * each station key also belongs to that interface.
+ *
+ * Hardware acceleration is done on a best-effort basis, for each key
+ * that is eligible the hardware is asked to enable that key but if
+ * it cannot do that they key is simply kept for software encryption.
+ * There is currently no way of knowing this except by looking into
+ * debugfs.
+ *
+ * All operations here are called under RTNL so no extra locking is
+ * required.
+ */
+
+static const u8 bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+static const u8 zero_addr[ETH_ALEN];
+
+static const u8 *get_mac_for_key(struct ieee80211_key *key)
+{
+ const u8 *addr = bcast_addr;
+
+ /*
+ * If we're an AP we won't ever receive frames with a non-WEP
+ * group key so we tell the driver that by using the zero MAC
+ * address to indicate a transmit-only key.
+ */
+ if (key->conf.alg != ALG_WEP &&
+ (key->sdata->type == IEEE80211_IF_TYPE_AP ||
+ key->sdata->type == IEEE80211_IF_TYPE_VLAN))
+ addr = zero_addr;
+
+ if (key->sta)
+ addr = key->sta->addr;
+
+ return addr;
+}
+
+static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
+{
+ const u8 *addr;
+ int ret;
+
+ if (!key->local->ops->set_key)
+ return;
+
+ addr = get_mac_for_key(key);
+
+ ret = key->local->ops->set_key(local_to_hw(key->local), SET_KEY,
+ key->sdata->dev->dev_addr, addr,
+ &key->conf);
+
+ if (!ret)
+ key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE;
+
+ if (ret && ret != -ENOSPC && ret != -EOPNOTSUPP)
+ printk(KERN_ERR "mac80211-%s: failed to set key "
+ "(%d, " MAC_FMT ") to hardware (%d)\n",
+ wiphy_name(key->local->hw.wiphy),
+ key->conf.keyidx, MAC_ARG(addr), ret);
+}
+
+static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
+{
+ const u8 *addr;
+ int ret;
+
+ if (!key->local->ops->set_key)
+ return;
+
+ if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
+ return;
+
+ addr = get_mac_for_key(key);
+
+ ret = key->local->ops->set_key(local_to_hw(key->local), DISABLE_KEY,
+ key->sdata->dev->dev_addr, addr,
+ &key->conf);
+
+ if (ret)
+ printk(KERN_ERR "mac80211-%s: failed to remove key "
+ "(%d, " MAC_FMT ") from hardware (%d)\n",
+ wiphy_name(key->local->hw.wiphy),
+ key->conf.keyidx, MAC_ARG(addr), ret);
+
+ key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE;
+}
+
+struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta,
+ enum ieee80211_key_alg alg,
+ int idx,
+ size_t key_len,
+ const u8 *key_data)
+{
+ struct ieee80211_key *key;
+
+ BUG_ON(idx < 0 || idx >= NUM_DEFAULT_KEYS);
+
+ key = kzalloc(sizeof(struct ieee80211_key) + key_len, GFP_KERNEL);
+ if (!key)
+ return NULL;
+
+ /*
+ * Default to software encryption; we'll later upload the
+ * key to the hardware if possible.
+ */
+ key->conf.flags = 0;
+ key->flags = 0;
+
+ key->conf.alg = alg;
+ key->conf.keyidx = idx;
+ key->conf.keylen = key_len;
+ memcpy(key->conf.key, key_data, key_len);
+
+ key->local = sdata->local;
+ key->sdata = sdata;
+ key->sta = sta;
+
+ if (alg == ALG_CCMP) {
+ /*
+ * Initialize AES key state here as an optimization so that
+ * it does not need to be initialized for every packet.
+ */
+ key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt(key_data);
+ if (!key->u.ccmp.tfm) {
+ ieee80211_key_free(key);
+ return NULL;
+ }
+ }
+
+ ieee80211_debugfs_key_add(key->local, key);
+
+ /* remove key first */
+ if (sta)
+ ieee80211_key_free(sta->key);
+ else
+ ieee80211_key_free(sdata->keys[idx]);
+
+ if (sta) {
+ ieee80211_debugfs_key_sta_link(key, sta);
+
+ /*
+ * some hardware cannot handle TKIP with QoS, so
+ * we indicate whether QoS could be in use.
+ */
+ if (sta->flags & WLAN_STA_WME)
+ key->conf.flags |= IEEE80211_KEY_FLAG_WMM_STA;
+ } else {
+ if (sdata->type == IEEE80211_IF_TYPE_STA) {
+ struct sta_info *ap;
+
+ /* same here, the AP could be using QoS */
+ ap = sta_info_get(key->local, key->sdata->u.sta.bssid);
+ if (ap) {
+ if (ap->flags & WLAN_STA_WME)
+ key->conf.flags |=
+ IEEE80211_KEY_FLAG_WMM_STA;
+ sta_info_put(ap);
+ }
+ }
+ }
+
+ /* enable hwaccel if appropriate */
+ if (netif_running(key->sdata->dev))
+ ieee80211_key_enable_hw_accel(key);
+
+ if (sta)
+ rcu_assign_pointer(sta->key, key);
+ else
+ rcu_assign_pointer(sdata->keys[idx], key);
+
+ list_add(&key->list, &sdata->key_list);
+
+ return key;
+}
+
+void ieee80211_key_free(struct ieee80211_key *key)
+{
+ if (!key)
+ return;
+
+ if (key->sta) {
+ rcu_assign_pointer(key->sta->key, NULL);
+ } else {
+ if (key->sdata->default_key == key)
+ ieee80211_set_default_key(key->sdata, -1);
+ if (key->conf.keyidx >= 0 &&
+ key->conf.keyidx < NUM_DEFAULT_KEYS)
+ rcu_assign_pointer(key->sdata->keys[key->conf.keyidx],
+ NULL);
+ else
+ WARN_ON(1);
+ }
+
+ /* wait for all key users to complete */
+ synchronize_rcu();
+
+ /* remove from hwaccel if appropriate */
+ ieee80211_key_disable_hw_accel(key);
+
+ if (key->conf.alg == ALG_CCMP)
+ ieee80211_aes_key_free(key->u.ccmp.tfm);
+ ieee80211_debugfs_key_remove(key);
+
+ list_del(&key->list);
+
+ kfree(key);
+}
+
+void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx)
+{
+ struct ieee80211_key *key = NULL;
+
+ if (idx >= 0 && idx < NUM_DEFAULT_KEYS)
+ key = sdata->keys[idx];
+
+ if (sdata->default_key != key) {
+ ieee80211_debugfs_key_remove_default(sdata);
+
+ rcu_assign_pointer(sdata->default_key, key);
+
+ if (sdata->default_key)
+ ieee80211_debugfs_key_add_default(sdata);
+ }
+}
+
+void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_key *key, *tmp;
+
+ list_for_each_entry_safe(key, tmp, &sdata->key_list, list)
+ ieee80211_key_free(key);
+}
+
+void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_key *key;
+
+ WARN_ON(!netif_running(sdata->dev));
+ if (!netif_running(sdata->dev))
+ return;
+
+ list_for_each_entry(key, &sdata->key_list, list)
+ ieee80211_key_enable_hw_accel(key);
+}
+
+void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata)
+{
+ struct ieee80211_key *key;
+
+ list_for_each_entry(key, &sdata->key_list, list)
+ ieee80211_key_disable_hw_accel(key);
+}
--- /dev/null
+/*
+ * Michael MIC implementation - optimized for TKIP MIC operations
+ * Copyright 2002-2003, Instant802 Networks, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+
+#include "michael.h"
+
+static inline u32 rotr(u32 val, int bits)
+{
+ return (val >> bits) | (val << (32 - bits));
+}
+
+
+static inline u32 rotl(u32 val, int bits)
+{
+ return (val << bits) | (val >> (32 - bits));
+}
+
+
+static inline u32 xswap(u32 val)
+{
+ return ((val & 0xff00ff00) >> 8) | ((val & 0x00ff00ff) << 8);
+}
+
+
+#define michael_block(l, r) \
+do { \
+ r ^= rotl(l, 17); \
+ l += r; \
+ r ^= xswap(l); \
+ l += r; \
+ r ^= rotl(l, 3); \
+ l += r; \
+ r ^= rotr(l, 2); \
+ l += r; \
+} while (0)
+
+
+static inline u32 michael_get32(u8 *data)
+{
+ return data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
+}
+
+
+static inline void michael_put32(u32 val, u8 *data)
+{
+ data[0] = val & 0xff;
+ data[1] = (val >> 8) & 0xff;
+ data[2] = (val >> 16) & 0xff;
+ data[3] = (val >> 24) & 0xff;
+}
+
+
+void michael_mic(u8 *key, u8 *da, u8 *sa, u8 priority,
+ u8 *data, size_t data_len, u8 *mic)
+{
+ u32 l, r, val;
+ size_t block, blocks, left;
+
+ l = michael_get32(key);
+ r = michael_get32(key + 4);
+
+ /* A pseudo header (DA, SA, Priority, 0, 0, 0) is used in Michael MIC
+ * calculation, but it is _not_ transmitted */
+ l ^= michael_get32(da);
+ michael_block(l, r);
+ l ^= da[4] | (da[5] << 8) | (sa[0] << 16) | (sa[1] << 24);
+ michael_block(l, r);
+ l ^= michael_get32(&sa[2]);
+ michael_block(l, r);
+ l ^= priority;
+ michael_block(l, r);
+
+ /* Real data */
+ blocks = data_len / 4;
+ left = data_len % 4;
+
+ for (block = 0; block < blocks; block++) {
+ l ^= michael_get32(&data[block * 4]);
+ michael_block(l, r);
+ }
+
+ /* Partial block of 0..3 bytes and padding: 0x5a + 4..7 zeros to make
+ * total length a multiple of 4. */
+ val = 0x5a;
+ while (left > 0) {
+ val <<= 8;
+ left--;
+ val |= data[blocks * 4 + left];
+ }
+ l ^= val;
+ michael_block(l, r);
+ /* last block is zero, so l ^ 0 = l */
+ michael_block(l, r);
+
+ michael_put32(l, mic);
+ michael_put32(r, mic + 4);
+}
--- /dev/null
+/*
+ * Michael MIC implementation - optimized for TKIP MIC operations
+ * Copyright 2002-2003, Instant802 Networks, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef MICHAEL_H
+#define MICHAEL_H
+
+#include <linux/types.h>
+
+#define MICHAEL_MIC_LEN 8
+
+void michael_mic(u8 *key, u8 *da, u8 *sa, u8 priority,
+ u8 *data, size_t data_len, u8 *mic);
+
+#endif /* MICHAEL_H */
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005, Devicescape Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/skbuff.h>
+#include <linux/compiler.h>
+
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "ieee80211_rate.h"
+#include "debugfs.h"
+
+
+/* This is a minimal implementation of TX rate controlling that can be used
+ * as the default when no improved mechanisms are available. */
+
+
+#define RATE_CONTROL_EMERG_DEC 2
+#define RATE_CONTROL_INTERVAL (HZ / 20)
+#define RATE_CONTROL_MIN_TX 10
+
+MODULE_ALIAS("rc80211_default");
+
+static void rate_control_rate_inc(struct ieee80211_local *local,
+ struct sta_info *sta)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_hw_mode *mode;
+ int i = sta->txrate;
+ int maxrate;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+ if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
+ /* forced unicast rate - do not change STA rate */
+ return;
+ }
+
+ mode = local->oper_hw_mode;
+ maxrate = sdata->bss ? sdata->bss->max_ratectrl_rateidx : -1;
+
+ if (i > mode->num_rates)
+ i = mode->num_rates - 2;
+
+ while (i + 1 < mode->num_rates) {
+ i++;
+ if (sta->supp_rates & BIT(i) &&
+ mode->rates[i].flags & IEEE80211_RATE_SUPPORTED &&
+ (maxrate < 0 || i <= maxrate)) {
+ sta->txrate = i;
+ break;
+ }
+ }
+}
+
+
+static void rate_control_rate_dec(struct ieee80211_local *local,
+ struct sta_info *sta)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_hw_mode *mode;
+ int i = sta->txrate;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+ if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
+ /* forced unicast rate - do not change STA rate */
+ return;
+ }
+
+ mode = local->oper_hw_mode;
+ if (i > mode->num_rates)
+ i = mode->num_rates;
+
+ while (i > 0) {
+ i--;
+ if (sta->supp_rates & BIT(i) &&
+ mode->rates[i].flags & IEEE80211_RATE_SUPPORTED) {
+ sta->txrate = i;
+ break;
+ }
+ }
+}
+
+
+static struct ieee80211_rate *
+rate_control_lowest_rate(struct ieee80211_local *local,
+ struct ieee80211_hw_mode *mode)
+{
+ int i;
+
+ for (i = 0; i < mode->num_rates; i++) {
+ struct ieee80211_rate *rate = &mode->rates[i];
+
+ if (rate->flags & IEEE80211_RATE_SUPPORTED)
+ return rate;
+ }
+
+ printk(KERN_DEBUG "rate_control_lowest_rate - no supported rates "
+ "found\n");
+ return &mode->rates[0];
+}
+
+
+struct global_rate_control {
+ int dummy;
+};
+
+struct sta_rate_control {
+ unsigned long last_rate_change;
+ u32 tx_num_failures;
+ u32 tx_num_xmit;
+
+ unsigned long avg_rate_update;
+ u32 tx_avg_rate_sum;
+ u32 tx_avg_rate_num;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct dentry *tx_avg_rate_sum_dentry;
+ struct dentry *tx_avg_rate_num_dentry;
+#endif
+};
+
+
+static void rate_control_simple_tx_status(void *priv, struct net_device *dev,
+ struct sk_buff *skb,
+ struct ieee80211_tx_status *status)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct sta_info *sta;
+ struct sta_rate_control *srctrl;
+
+ sta = sta_info_get(local, hdr->addr1);
+
+ if (!sta)
+ return;
+
+ srctrl = sta->rate_ctrl_priv;
+ srctrl->tx_num_xmit++;
+ if (status->excessive_retries) {
+ srctrl->tx_num_failures++;
+ sta->tx_retry_failed++;
+ sta->tx_num_consecutive_failures++;
+ sta->tx_num_mpdu_fail++;
+ } else {
+ sta->last_ack_rssi[0] = sta->last_ack_rssi[1];
+ sta->last_ack_rssi[1] = sta->last_ack_rssi[2];
+ sta->last_ack_rssi[2] = status->ack_signal;
+ sta->tx_num_consecutive_failures = 0;
+ sta->tx_num_mpdu_ok++;
+ }
+ sta->tx_retry_count += status->retry_count;
+ sta->tx_num_mpdu_fail += status->retry_count;
+
+ if (time_after(jiffies,
+ srctrl->last_rate_change + RATE_CONTROL_INTERVAL) &&
+ srctrl->tx_num_xmit > RATE_CONTROL_MIN_TX) {
+ u32 per_failed;
+ srctrl->last_rate_change = jiffies;
+
+ per_failed = (100 * sta->tx_num_mpdu_fail) /
+ (sta->tx_num_mpdu_fail + sta->tx_num_mpdu_ok);
+ /* TODO: calculate average per_failed to make adjusting
+ * parameters easier */
+#if 0
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "MPDU fail=%d ok=%d per_failed=%d\n",
+ sta->tx_num_mpdu_fail, sta->tx_num_mpdu_ok,
+ per_failed);
+ }
+#endif
+
+ /*
+ * XXX: Make these configurable once we have an
+ * interface to the rate control algorithms
+ */
+ if (per_failed > RATE_CONTROL_NUM_DOWN) {
+ rate_control_rate_dec(local, sta);
+ } else if (per_failed < RATE_CONTROL_NUM_UP) {
+ rate_control_rate_inc(local, sta);
+ }
+ srctrl->tx_avg_rate_sum += status->control.rate->rate;
+ srctrl->tx_avg_rate_num++;
+ srctrl->tx_num_failures = 0;
+ srctrl->tx_num_xmit = 0;
+ } else if (sta->tx_num_consecutive_failures >=
+ RATE_CONTROL_EMERG_DEC) {
+ rate_control_rate_dec(local, sta);
+ }
+
+ if (srctrl->avg_rate_update + 60 * HZ < jiffies) {
+ srctrl->avg_rate_update = jiffies;
+ if (srctrl->tx_avg_rate_num > 0) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: STA " MAC_FMT " Average rate: "
+ "%d (%d/%d)\n",
+ dev->name, MAC_ARG(sta->addr),
+ srctrl->tx_avg_rate_sum /
+ srctrl->tx_avg_rate_num,
+ srctrl->tx_avg_rate_sum,
+ srctrl->tx_avg_rate_num);
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+ srctrl->tx_avg_rate_sum = 0;
+ srctrl->tx_avg_rate_num = 0;
+ }
+ }
+
+ sta_info_put(sta);
+}
+
+
+static struct ieee80211_rate *
+rate_control_simple_get_rate(void *priv, struct net_device *dev,
+ struct sk_buff *skb,
+ struct rate_control_extra *extra)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_hw_mode *mode = extra->mode;
+ struct sta_info *sta;
+ int rateidx, nonerp_idx;
+ u16 fc;
+
+ memset(extra, 0, sizeof(*extra));
+
+ fc = le16_to_cpu(hdr->frame_control);
+ if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
+ (hdr->addr1[0] & 0x01)) {
+ /* Send management frames and broadcast/multicast data using
+ * lowest rate. */
+ /* TODO: this could probably be improved.. */
+ return rate_control_lowest_rate(local, mode);
+ }
+
+ sta = sta_info_get(local, hdr->addr1);
+
+ if (!sta)
+ return rate_control_lowest_rate(local, mode);
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
+ sta->txrate = sdata->bss->force_unicast_rateidx;
+
+ rateidx = sta->txrate;
+
+ if (rateidx >= mode->num_rates)
+ rateidx = mode->num_rates - 1;
+
+ sta->last_txrate = rateidx;
+ nonerp_idx = rateidx;
+ while (nonerp_idx > 0 &&
+ ((mode->rates[nonerp_idx].flags & IEEE80211_RATE_ERP) ||
+ !(mode->rates[nonerp_idx].flags & IEEE80211_RATE_SUPPORTED) ||
+ !(sta->supp_rates & BIT(nonerp_idx))))
+ nonerp_idx--;
+ extra->nonerp = &mode->rates[nonerp_idx];
+
+ sta_info_put(sta);
+
+ return &mode->rates[rateidx];
+}
+
+
+static void rate_control_simple_rate_init(void *priv, void *priv_sta,
+ struct ieee80211_local *local,
+ struct sta_info *sta)
+{
+ struct ieee80211_hw_mode *mode;
+ int i;
+ sta->txrate = 0;
+ mode = local->oper_hw_mode;
+ /* TODO: This routine should consider using RSSI from previous packets
+ * as we need to have IEEE 802.1X auth succeed immediately after assoc..
+ * Until that method is implemented, we will use the lowest supported rate
+ * as a workaround, */
+ for (i = 0; i < mode->num_rates; i++) {
+ if ((sta->supp_rates & BIT(i)) &&
+ (mode->rates[i].flags & IEEE80211_RATE_SUPPORTED)) {
+ sta->txrate = i;
+ break;
+ }
+ }
+}
+
+
+static void * rate_control_simple_alloc(struct ieee80211_local *local)
+{
+ struct global_rate_control *rctrl;
+
+ rctrl = kzalloc(sizeof(*rctrl), GFP_ATOMIC);
+
+ return rctrl;
+}
+
+
+static void rate_control_simple_free(void *priv)
+{
+ struct global_rate_control *rctrl = priv;
+ kfree(rctrl);
+}
+
+
+static void rate_control_simple_clear(void *priv)
+{
+}
+
+
+static void * rate_control_simple_alloc_sta(void *priv, gfp_t gfp)
+{
+ struct sta_rate_control *rctrl;
+
+ rctrl = kzalloc(sizeof(*rctrl), gfp);
+
+ return rctrl;
+}
+
+
+static void rate_control_simple_free_sta(void *priv, void *priv_sta)
+{
+ struct sta_rate_control *rctrl = priv_sta;
+ kfree(rctrl);
+}
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+
+static int open_file_generic(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+static ssize_t sta_tx_avg_rate_sum_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct sta_rate_control *srctrl = file->private_data;
+ char buf[20];
+
+ sprintf(buf, "%d\n", srctrl->tx_avg_rate_sum);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
+}
+
+static const struct file_operations sta_tx_avg_rate_sum_ops = {
+ .read = sta_tx_avg_rate_sum_read,
+ .open = open_file_generic,
+};
+
+static ssize_t sta_tx_avg_rate_num_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct sta_rate_control *srctrl = file->private_data;
+ char buf[20];
+
+ sprintf(buf, "%d\n", srctrl->tx_avg_rate_num);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
+}
+
+static const struct file_operations sta_tx_avg_rate_num_ops = {
+ .read = sta_tx_avg_rate_num_read,
+ .open = open_file_generic,
+};
+
+static void rate_control_simple_add_sta_debugfs(void *priv, void *priv_sta,
+ struct dentry *dir)
+{
+ struct sta_rate_control *srctrl = priv_sta;
+
+ srctrl->tx_avg_rate_num_dentry =
+ debugfs_create_file("rc_simple_sta_tx_avg_rate_num", 0400,
+ dir, srctrl, &sta_tx_avg_rate_num_ops);
+ srctrl->tx_avg_rate_sum_dentry =
+ debugfs_create_file("rc_simple_sta_tx_avg_rate_sum", 0400,
+ dir, srctrl, &sta_tx_avg_rate_sum_ops);
+}
+
+static void rate_control_simple_remove_sta_debugfs(void *priv, void *priv_sta)
+{
+ struct sta_rate_control *srctrl = priv_sta;
+
+ debugfs_remove(srctrl->tx_avg_rate_sum_dentry);
+ debugfs_remove(srctrl->tx_avg_rate_num_dentry);
+}
+#endif
+
+static struct rate_control_ops rate_control_simple = {
+ .module = THIS_MODULE,
+ .name = "simple",
+ .tx_status = rate_control_simple_tx_status,
+ .get_rate = rate_control_simple_get_rate,
+ .rate_init = rate_control_simple_rate_init,
+ .clear = rate_control_simple_clear,
+ .alloc = rate_control_simple_alloc,
+ .free = rate_control_simple_free,
+ .alloc_sta = rate_control_simple_alloc_sta,
+ .free_sta = rate_control_simple_free_sta,
+#ifdef CONFIG_MAC80211_DEBUGFS
+ .add_sta_debugfs = rate_control_simple_add_sta_debugfs,
+ .remove_sta_debugfs = rate_control_simple_remove_sta_debugfs,
+#endif
+};
+
+
+static int __init rate_control_simple_init(void)
+{
+ return ieee80211_rate_control_register(&rate_control_simple);
+}
+
+
+static void __exit rate_control_simple_exit(void)
+{
+ ieee80211_rate_control_unregister(&rate_control_simple);
+}
+
+
+subsys_initcall(rate_control_simple_init);
+module_exit(rate_control_simple_exit);
+
+MODULE_DESCRIPTION("Simple rate control algorithm for ieee80211");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * This regulatory domain control implementation is known to be incomplete
+ * and confusing. mac80211 regulatory domain control will be significantly
+ * reworked in the not-too-distant future.
+ *
+ * For now, drivers wishing to control which channels are and aren't available
+ * are advised as follows:
+ * - set the IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag
+ * - continue to include *ALL* possible channels in the modes registered
+ * through ieee80211_register_hwmode()
+ * - for each allowable ieee80211_channel structure registered in the above
+ * call, set the flag member to some meaningful value such as
+ * IEEE80211_CHAN_W_SCAN | IEEE80211_CHAN_W_ACTIVE_SCAN |
+ * IEEE80211_CHAN_W_IBSS.
+ * - leave flag as 0 for non-allowable channels
+ *
+ * The usual implementation is for a driver to read a device EEPROM to
+ * determine which regulatory domain it should be operating under, then
+ * looking up the allowable channels in a driver-local table, then performing
+ * the above.
+ */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+
+static int ieee80211_regdom = 0x10; /* FCC */
+module_param(ieee80211_regdom, int, 0444);
+MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain; 64=MKK");
+
+/*
+ * If firmware is upgraded by the vendor, additional channels can be used based
+ * on the new Japanese regulatory rules. This is indicated by setting
+ * ieee80211_japan_5ghz module parameter to one when loading the 80211 kernel
+ * module.
+ */
+static int ieee80211_japan_5ghz /* = 0 */;
+module_param(ieee80211_japan_5ghz, int, 0444);
+MODULE_PARM_DESC(ieee80211_japan_5ghz, "Vendor-updated firmware for 5 GHz");
+
+
+struct ieee80211_channel_range {
+ short start_freq;
+ short end_freq;
+ unsigned char power_level;
+ unsigned char antenna_max;
+};
+
+static const struct ieee80211_channel_range ieee80211_fcc_channels[] = {
+ { 2412, 2462, 27, 6 } /* IEEE 802.11b/g, channels 1..11 */,
+ { 5180, 5240, 17, 6 } /* IEEE 802.11a, channels 36..48 */,
+ { 5260, 5320, 23, 6 } /* IEEE 802.11a, channels 52..64 */,
+ { 5745, 5825, 30, 6 } /* IEEE 802.11a, channels 149..165, outdoor */,
+ { 0 }
+};
+
+static const struct ieee80211_channel_range ieee80211_mkk_channels[] = {
+ { 2412, 2472, 20, 6 } /* IEEE 802.11b/g, channels 1..13 */,
+ { 5170, 5240, 20, 6 } /* IEEE 802.11a, channels 34..48 */,
+ { 5260, 5320, 20, 6 } /* IEEE 802.11a, channels 52..64 */,
+ { 0 }
+};
+
+
+static const struct ieee80211_channel_range *channel_range =
+ ieee80211_fcc_channels;
+
+
+static void ieee80211_unmask_channel(int mode, struct ieee80211_channel *chan)
+{
+ int i;
+
+ chan->flag = 0;
+
+ for (i = 0; channel_range[i].start_freq; i++) {
+ const struct ieee80211_channel_range *r = &channel_range[i];
+ if (r->start_freq <= chan->freq && r->end_freq >= chan->freq) {
+ if (ieee80211_regdom == 64 && !ieee80211_japan_5ghz &&
+ chan->freq >= 5260 && chan->freq <= 5320) {
+ /*
+ * Skip new channels in Japan since the
+ * firmware was not marked having been upgraded
+ * by the vendor.
+ */
+ continue;
+ }
+
+ if (ieee80211_regdom == 0x10 &&
+ (chan->freq == 5190 || chan->freq == 5210 ||
+ chan->freq == 5230)) {
+ /* Skip MKK channels when in FCC domain. */
+ continue;
+ }
+
+ chan->flag |= IEEE80211_CHAN_W_SCAN |
+ IEEE80211_CHAN_W_ACTIVE_SCAN |
+ IEEE80211_CHAN_W_IBSS;
+ chan->power_level = r->power_level;
+ chan->antenna_max = r->antenna_max;
+
+ if (ieee80211_regdom == 64 &&
+ (chan->freq == 5170 || chan->freq == 5190 ||
+ chan->freq == 5210 || chan->freq == 5230)) {
+ /*
+ * New regulatory rules in Japan have backwards
+ * compatibility with old channels in 5.15-5.25
+ * GHz band, but the station is not allowed to
+ * use active scan on these old channels.
+ */
+ chan->flag &= ~IEEE80211_CHAN_W_ACTIVE_SCAN;
+ }
+
+ if (ieee80211_regdom == 64 &&
+ (chan->freq == 5260 || chan->freq == 5280 ||
+ chan->freq == 5300 || chan->freq == 5320)) {
+ /*
+ * IBSS is not allowed on 5.25-5.35 GHz band
+ * due to radar detection requirements.
+ */
+ chan->flag &= ~IEEE80211_CHAN_W_IBSS;
+ }
+
+ break;
+ }
+ }
+}
+
+
+void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode)
+{
+ int c;
+ for (c = 0; c < mode->num_channels; c++)
+ ieee80211_unmask_channel(mode->mode, &mode->channels[c]);
+}
+
+
+void ieee80211_regdomain_init(void)
+{
+ if (ieee80211_regdom == 0x40)
+ channel_range = ieee80211_mkk_channels;
+}
+
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/rcupdate.h>
+#include <net/mac80211.h>
+#include <net/ieee80211_radiotap.h>
+
+#include "ieee80211_i.h"
+#include "ieee80211_led.h"
+#include "wep.h"
+#include "wpa.h"
+#include "tkip.h"
+#include "wme.h"
+
+/*
+ * monitor mode reception
+ *
+ * This function cleans up the SKB, i.e. it removes all the stuff
+ * only useful for monitoring.
+ */
+static struct sk_buff *remove_monitor_info(struct ieee80211_local *local,
+ struct sk_buff *skb,
+ int rtap_len)
+{
+ skb_pull(skb, rtap_len);
+
+ if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) {
+ if (likely(skb->len > FCS_LEN))
+ skb_trim(skb, skb->len - FCS_LEN);
+ else {
+ /* driver bug */
+ WARN_ON(1);
+ dev_kfree_skb(skb);
+ skb = NULL;
+ }
+ }
+
+ return skb;
+}
+
+static inline int should_drop_frame(struct ieee80211_rx_status *status,
+ struct sk_buff *skb,
+ int present_fcs_len,
+ int radiotap_len)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+
+ if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
+ return 1;
+ if (unlikely(skb->len < 16 + present_fcs_len + radiotap_len))
+ return 1;
+ if ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_CTL))
+ return 1;
+ return 0;
+}
+
+/*
+ * This function copies a received frame to all monitor interfaces and
+ * returns a cleaned-up SKB that no longer includes the FCS nor the
+ * radiotap header the driver might have added.
+ */
+static struct sk_buff *
+ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
+ struct ieee80211_rx_status *status)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_rate *rate;
+ int needed_headroom = 0;
+ struct ieee80211_rtap_hdr {
+ struct ieee80211_radiotap_header hdr;
+ u8 flags;
+ u8 rate;
+ __le16 chan_freq;
+ __le16 chan_flags;
+ u8 antsignal;
+ u8 padding_for_rxflags;
+ __le16 rx_flags;
+ } __attribute__ ((packed)) *rthdr;
+ struct sk_buff *skb, *skb2;
+ struct net_device *prev_dev = NULL;
+ int present_fcs_len = 0;
+ int rtap_len = 0;
+
+ /*
+ * First, we may need to make a copy of the skb because
+ * (1) we need to modify it for radiotap (if not present), and
+ * (2) the other RX handlers will modify the skb we got.
+ *
+ * We don't need to, of course, if we aren't going to return
+ * the SKB because it has a bad FCS/PLCP checksum.
+ */
+ if (status->flag & RX_FLAG_RADIOTAP)
+ rtap_len = ieee80211_get_radiotap_len(origskb->data);
+ else
+ needed_headroom = sizeof(*rthdr);
+
+ if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
+ present_fcs_len = FCS_LEN;
+
+ if (!local->monitors) {
+ if (should_drop_frame(status, origskb, present_fcs_len,
+ rtap_len)) {
+ dev_kfree_skb(origskb);
+ return NULL;
+ }
+
+ return remove_monitor_info(local, origskb, rtap_len);
+ }
+
+ if (should_drop_frame(status, origskb, present_fcs_len, rtap_len)) {
+ /* only need to expand headroom if necessary */
+ skb = origskb;
+ origskb = NULL;
+
+ /*
+ * This shouldn't trigger often because most devices have an
+ * RX header they pull before we get here, and that should
+ * be big enough for our radiotap information. We should
+ * probably export the length to drivers so that we can have
+ * them allocate enough headroom to start with.
+ */
+ if (skb_headroom(skb) < needed_headroom &&
+ pskb_expand_head(skb, sizeof(*rthdr), 0, GFP_ATOMIC)) {
+ dev_kfree_skb(skb);
+ return NULL;
+ }
+ } else {
+ /*
+ * Need to make a copy and possibly remove radiotap header
+ * and FCS from the original.
+ */
+ skb = skb_copy_expand(origskb, needed_headroom, 0, GFP_ATOMIC);
+
+ origskb = remove_monitor_info(local, origskb, rtap_len);
+
+ if (!skb)
+ return origskb;
+ }
+
+ /* if necessary, prepend radiotap information */
+ if (!(status->flag & RX_FLAG_RADIOTAP)) {
+ rthdr = (void *) skb_push(skb, sizeof(*rthdr));
+ memset(rthdr, 0, sizeof(*rthdr));
+ rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
+ rthdr->hdr.it_present =
+ cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
+ (1 << IEEE80211_RADIOTAP_RATE) |
+ (1 << IEEE80211_RADIOTAP_CHANNEL) |
+ (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) |
+ (1 << IEEE80211_RADIOTAP_RX_FLAGS));
+ rthdr->flags = local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS ?
+ IEEE80211_RADIOTAP_F_FCS : 0;
+
+ /* FIXME: when radiotap gets a 'bad PLCP' flag use it here */
+ rthdr->rx_flags = 0;
+ if (status->flag &
+ (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
+ rthdr->rx_flags |=
+ cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADFCS);
+
+ rate = ieee80211_get_rate(local, status->phymode,
+ status->rate);
+ if (rate)
+ rthdr->rate = rate->rate / 5;
+
+ rthdr->chan_freq = cpu_to_le16(status->freq);
+
+ if (status->phymode == MODE_IEEE80211A)
+ rthdr->chan_flags =
+ cpu_to_le16(IEEE80211_CHAN_OFDM |
+ IEEE80211_CHAN_5GHZ);
+ else
+ rthdr->chan_flags =
+ cpu_to_le16(IEEE80211_CHAN_DYN |
+ IEEE80211_CHAN_2GHZ);
+
+ rthdr->antsignal = status->ssi;
+ }
+
+ skb_set_mac_header(skb, 0);
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ skb->pkt_type = PACKET_OTHERHOST;
+ skb->protocol = htons(ETH_P_802_2);
+
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ if (!netif_running(sdata->dev))
+ continue;
+
+ if (sdata->type != IEEE80211_IF_TYPE_MNTR)
+ continue;
+
+ if (prev_dev) {
+ skb2 = skb_clone(skb, GFP_ATOMIC);
+ if (skb2) {
+ skb2->dev = prev_dev;
+ netif_rx(skb2);
+ }
+ }
+
+ prev_dev = sdata->dev;
+ sdata->dev->stats.rx_packets++;
+ sdata->dev->stats.rx_bytes += skb->len;
+ }
+
+ if (prev_dev) {
+ skb->dev = prev_dev;
+ netif_rx(skb);
+ } else
+ dev_kfree_skb(skb);
+
+ return origskb;
+}
+
+
+/* pre-rx handlers
+ *
+ * these don't have dev/sdata fields in the rx data
+ * The sta value should also not be used because it may
+ * be NULL even though a STA (in IBSS mode) will be added.
+ */
+
+static ieee80211_txrx_result
+ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx)
+{
+ u8 *data = rx->skb->data;
+ int tid;
+
+ /* does the frame have a qos control field? */
+ if (WLAN_FC_IS_QOS_DATA(rx->fc)) {
+ u8 *qc = data + ieee80211_get_hdrlen(rx->fc) - QOS_CONTROL_LEN;
+ /* frame has qos control */
+ tid = qc[0] & QOS_CONTROL_TID_MASK;
+ } else {
+ if (unlikely((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)) {
+ /* Separate TID for management frames */
+ tid = NUM_RX_DATA_QUEUES - 1;
+ } else {
+ /* no qos control present */
+ tid = 0; /* 802.1d - Best Effort */
+ }
+ }
+
+ I802_DEBUG_INC(rx->local->wme_rx_queue[tid]);
+ /* only a debug counter, sta might not be assigned properly yet */
+ if (rx->sta)
+ I802_DEBUG_INC(rx->sta->wme_rx_queue[tid]);
+
+ rx->u.rx.queue = tid;
+ /* Set skb->priority to 1d tag if highest order bit of TID is not set.
+ * For now, set skb->priority to 0 for other cases. */
+ rx->skb->priority = (tid > 7) ? 0 : tid;
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_load_stats(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_local *local = rx->local;
+ struct sk_buff *skb = rx->skb;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u32 load = 0, hdrtime;
+ struct ieee80211_rate *rate;
+ struct ieee80211_hw_mode *mode = local->hw.conf.mode;
+ int i;
+
+ /* Estimate total channel use caused by this frame */
+
+ if (unlikely(mode->num_rates < 0))
+ return TXRX_CONTINUE;
+
+ rate = &mode->rates[0];
+ for (i = 0; i < mode->num_rates; i++) {
+ if (mode->rates[i].val == rx->u.rx.status->rate) {
+ rate = &mode->rates[i];
+ break;
+ }
+ }
+
+ /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
+ * 1 usec = 1/8 * (1080 / 10) = 13.5 */
+
+ if (mode->mode == MODE_IEEE80211A ||
+ (mode->mode == MODE_IEEE80211G &&
+ rate->flags & IEEE80211_RATE_ERP))
+ hdrtime = CHAN_UTIL_HDR_SHORT;
+ else
+ hdrtime = CHAN_UTIL_HDR_LONG;
+
+ load = hdrtime;
+ if (!is_multicast_ether_addr(hdr->addr1))
+ load += hdrtime;
+
+ load += skb->len * rate->rate_inv;
+
+ /* Divide channel_use by 8 to avoid wrapping around the counter */
+ load >>= CHAN_UTIL_SHIFT;
+ local->channel_use_raw += load;
+ rx->u.rx.load = load;
+
+ return TXRX_CONTINUE;
+}
+
+ieee80211_rx_handler ieee80211_rx_pre_handlers[] =
+{
+ ieee80211_rx_h_parse_qos,
+ ieee80211_rx_h_load_stats,
+ NULL
+};
+
+/* rx handlers */
+
+static ieee80211_txrx_result
+ieee80211_rx_h_if_stats(struct ieee80211_txrx_data *rx)
+{
+ if (rx->sta)
+ rx->sta->channel_use_raw += rx->u.rx.load;
+ rx->sdata->channel_use_raw += rx->u.rx.load;
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_passive_scan(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_local *local = rx->local;
+ struct sk_buff *skb = rx->skb;
+
+ if (unlikely(local->sta_scanning != 0)) {
+ ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status);
+ return TXRX_QUEUED;
+ }
+
+ if (unlikely(rx->flags & IEEE80211_TXRXD_RXIN_SCAN)) {
+ /* scanning finished during invoking of handlers */
+ I802_DEBUG_INC(local->rx_handlers_drop_passive_scan);
+ return TXRX_DROP;
+ }
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_hdr *hdr;
+ hdr = (struct ieee80211_hdr *) rx->skb->data;
+
+ /* Drop duplicate 802.11 retransmissions (IEEE 802.11 Chap. 9.2.9) */
+ if (rx->sta && !is_multicast_ether_addr(hdr->addr1)) {
+ if (unlikely(rx->fc & IEEE80211_FCTL_RETRY &&
+ rx->sta->last_seq_ctrl[rx->u.rx.queue] ==
+ hdr->seq_ctrl)) {
+ if (rx->flags & IEEE80211_TXRXD_RXRA_MATCH) {
+ rx->local->dot11FrameDuplicateCount++;
+ rx->sta->num_duplicates++;
+ }
+ return TXRX_DROP;
+ } else
+ rx->sta->last_seq_ctrl[rx->u.rx.queue] = hdr->seq_ctrl;
+ }
+
+ if (unlikely(rx->skb->len < 16)) {
+ I802_DEBUG_INC(rx->local->rx_handlers_drop_short);
+ return TXRX_DROP;
+ }
+
+ if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+ rx->skb->pkt_type = PACKET_OTHERHOST;
+ else if (compare_ether_addr(rx->dev->dev_addr, hdr->addr1) == 0)
+ rx->skb->pkt_type = PACKET_HOST;
+ else if (is_multicast_ether_addr(hdr->addr1)) {
+ if (is_broadcast_ether_addr(hdr->addr1))
+ rx->skb->pkt_type = PACKET_BROADCAST;
+ else
+ rx->skb->pkt_type = PACKET_MULTICAST;
+ } else
+ rx->skb->pkt_type = PACKET_OTHERHOST;
+
+ /* Drop disallowed frame classes based on STA auth/assoc state;
+ * IEEE 802.11, Chap 5.5.
+ *
+ * 80211.o does filtering only based on association state, i.e., it
+ * drops Class 3 frames from not associated stations. hostapd sends
+ * deauth/disassoc frames when needed. In addition, hostapd is
+ * responsible for filtering on both auth and assoc states.
+ */
+ if (unlikely(((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA ||
+ ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL &&
+ (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)) &&
+ rx->sdata->type != IEEE80211_IF_TYPE_IBSS &&
+ (!rx->sta || !(rx->sta->flags & WLAN_STA_ASSOC)))) {
+ if ((!(rx->fc & IEEE80211_FCTL_FROMDS) &&
+ !(rx->fc & IEEE80211_FCTL_TODS) &&
+ (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
+ || !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
+ /* Drop IBSS frames and frames for other hosts
+ * silently. */
+ return TXRX_DROP;
+ }
+
+ return TXRX_DROP;
+ }
+
+ return TXRX_CONTINUE;
+}
+
+
+static ieee80211_txrx_result
+ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
+ int keyidx;
+ int hdrlen;
+ ieee80211_txrx_result result = TXRX_DROP;
+ struct ieee80211_key *stakey = NULL;
+
+ /*
+ * Key selection 101
+ *
+ * There are three types of keys:
+ * - GTK (group keys)
+ * - PTK (pairwise keys)
+ * - STK (station-to-station pairwise keys)
+ *
+ * When selecting a key, we have to distinguish between multicast
+ * (including broadcast) and unicast frames, the latter can only
+ * use PTKs and STKs while the former always use GTKs. Unless, of
+ * course, actual WEP keys ("pre-RSNA") are used, then unicast
+ * frames can also use key indizes like GTKs. Hence, if we don't
+ * have a PTK/STK we check the key index for a WEP key.
+ *
+ * Note that in a regular BSS, multicast frames are sent by the
+ * AP only, associated stations unicast the frame to the AP first
+ * which then multicasts it on their behalf.
+ *
+ * There is also a slight problem in IBSS mode: GTKs are negotiated
+ * with each station, that is something we don't currently handle.
+ * The spec seems to expect that one negotiates the same key with
+ * every station but there's no such requirement; VLANs could be
+ * possible.
+ */
+
+ if (!(rx->fc & IEEE80211_FCTL_PROTECTED))
+ return TXRX_CONTINUE;
+
+ /*
+ * No point in finding a key and decrypting if the frame is neither
+ * addressed to us nor a multicast frame.
+ */
+ if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+ return TXRX_CONTINUE;
+
+ if (rx->sta)
+ stakey = rcu_dereference(rx->sta->key);
+
+ if (!is_multicast_ether_addr(hdr->addr1) && stakey) {
+ rx->key = stakey;
+ } else {
+ /*
+ * The device doesn't give us the IV so we won't be
+ * able to look up the key. That's ok though, we
+ * don't need to decrypt the frame, we just won't
+ * be able to keep statistics accurate.
+ * Except for key threshold notifications, should
+ * we somehow allow the driver to tell us which key
+ * the hardware used if this flag is set?
+ */
+ if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
+ (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED))
+ return TXRX_CONTINUE;
+
+ hdrlen = ieee80211_get_hdrlen(rx->fc);
+
+ if (rx->skb->len < 8 + hdrlen)
+ return TXRX_DROP; /* TODO: count this? */
+
+ /*
+ * no need to call ieee80211_wep_get_keyidx,
+ * it verifies a bunch of things we've done already
+ */
+ keyidx = rx->skb->data[hdrlen + 3] >> 6;
+
+ rx->key = rcu_dereference(rx->sdata->keys[keyidx]);
+
+ /*
+ * RSNA-protected unicast frames should always be sent with
+ * pairwise or station-to-station keys, but for WEP we allow
+ * using a key index as well.
+ */
+ if (rx->key && rx->key->conf.alg != ALG_WEP &&
+ !is_multicast_ether_addr(hdr->addr1))
+ rx->key = NULL;
+ }
+
+ if (rx->key) {
+ rx->key->tx_rx_count++;
+ /* TODO: add threshold stuff again */
+ } else {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: RX protected frame,"
+ " but have no key\n", rx->dev->name);
+ return TXRX_DROP;
+ }
+
+ /* Check for weak IVs if possible */
+ if (rx->sta && rx->key->conf.alg == ALG_WEP &&
+ ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
+ (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) ||
+ !(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) &&
+ ieee80211_wep_is_weak_iv(rx->skb, rx->key))
+ rx->sta->wep_weak_iv_count++;
+
+ switch (rx->key->conf.alg) {
+ case ALG_WEP:
+ result = ieee80211_crypto_wep_decrypt(rx);
+ break;
+ case ALG_TKIP:
+ result = ieee80211_crypto_tkip_decrypt(rx);
+ break;
+ case ALG_CCMP:
+ result = ieee80211_crypto_ccmp_decrypt(rx);
+ break;
+ }
+
+ /* either the frame has been decrypted or will be dropped */
+ rx->u.rx.status->flag |= RX_FLAG_DECRYPTED;
+
+ return result;
+}
+
+static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta)
+{
+ struct ieee80211_sub_if_data *sdata;
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+
+ if (sdata->bss)
+ atomic_inc(&sdata->bss->num_sta_ps);
+ sta->flags |= WLAN_STA_PS;
+ sta->pspoll = 0;
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+ printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d enters power "
+ "save mode\n", dev->name, MAC_ARG(sta->addr), sta->aid);
+#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+}
+
+static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sk_buff *skb;
+ int sent = 0;
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_tx_packet_data *pkt_data;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+ if (sdata->bss)
+ atomic_dec(&sdata->bss->num_sta_ps);
+ sta->flags &= ~(WLAN_STA_PS | WLAN_STA_TIM);
+ sta->pspoll = 0;
+ if (!skb_queue_empty(&sta->ps_tx_buf)) {
+ if (local->ops->set_tim)
+ local->ops->set_tim(local_to_hw(local), sta->aid, 0);
+ if (sdata->bss)
+ bss_tim_clear(local, sdata->bss, sta->aid);
+ }
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+ printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d exits power "
+ "save mode\n", dev->name, MAC_ARG(sta->addr), sta->aid);
+#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+ /* Send all buffered frames to the station */
+ while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
+ pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+ sent++;
+ pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
+ dev_queue_xmit(skb);
+ }
+ while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
+ pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+ local->total_ps_buffered--;
+ sent++;
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+ printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d send PS frame "
+ "since STA not sleeping anymore\n", dev->name,
+ MAC_ARG(sta->addr), sta->aid);
+#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+ pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
+ dev_queue_xmit(skb);
+ }
+
+ return sent;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx)
+{
+ struct sta_info *sta = rx->sta;
+ struct net_device *dev = rx->dev;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
+
+ if (!sta)
+ return TXRX_CONTINUE;
+
+ /* Update last_rx only for IBSS packets which are for the current
+ * BSSID to avoid keeping the current IBSS network alive in cases where
+ * other STAs are using different BSSID. */
+ if (rx->sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len);
+ if (compare_ether_addr(bssid, rx->sdata->u.sta.bssid) == 0)
+ sta->last_rx = jiffies;
+ } else
+ if (!is_multicast_ether_addr(hdr->addr1) ||
+ rx->sdata->type == IEEE80211_IF_TYPE_STA) {
+ /* Update last_rx only for unicast frames in order to prevent
+ * the Probe Request frames (the only broadcast frames from a
+ * STA in infrastructure mode) from keeping a connection alive.
+ */
+ sta->last_rx = jiffies;
+ }
+
+ if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+ return TXRX_CONTINUE;
+
+ sta->rx_fragments++;
+ sta->rx_bytes += rx->skb->len;
+ sta->last_rssi = rx->u.rx.status->ssi;
+ sta->last_signal = rx->u.rx.status->signal;
+ sta->last_noise = rx->u.rx.status->noise;
+
+ if (!(rx->fc & IEEE80211_FCTL_MOREFRAGS)) {
+ /* Change STA power saving mode only in the end of a frame
+ * exchange sequence */
+ if ((sta->flags & WLAN_STA_PS) && !(rx->fc & IEEE80211_FCTL_PM))
+ rx->u.rx.sent_ps_buffered += ap_sta_ps_end(dev, sta);
+ else if (!(sta->flags & WLAN_STA_PS) &&
+ (rx->fc & IEEE80211_FCTL_PM))
+ ap_sta_ps_start(dev, sta);
+ }
+
+ /* Drop data::nullfunc frames silently, since they are used only to
+ * control station power saving mode. */
+ if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
+ (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_NULLFUNC) {
+ I802_DEBUG_INC(rx->local->rx_handlers_drop_nullfunc);
+ /* Update counter and free packet here to avoid counting this
+ * as a dropped packed. */
+ sta->rx_packets++;
+ dev_kfree_skb(rx->skb);
+ return TXRX_QUEUED;
+ }
+
+ return TXRX_CONTINUE;
+} /* ieee80211_rx_h_sta_process */
+
+static inline struct ieee80211_fragment_entry *
+ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata,
+ unsigned int frag, unsigned int seq, int rx_queue,
+ struct sk_buff **skb)
+{
+ struct ieee80211_fragment_entry *entry;
+ int idx;
+
+ idx = sdata->fragment_next;
+ entry = &sdata->fragments[sdata->fragment_next++];
+ if (sdata->fragment_next >= IEEE80211_FRAGMENT_MAX)
+ sdata->fragment_next = 0;
+
+ if (!skb_queue_empty(&entry->skb_list)) {
+#ifdef CONFIG_MAC80211_DEBUG
+ struct ieee80211_hdr *hdr =
+ (struct ieee80211_hdr *) entry->skb_list.next->data;
+ printk(KERN_DEBUG "%s: RX reassembly removed oldest "
+ "fragment entry (idx=%d age=%lu seq=%d last_frag=%d "
+ "addr1=" MAC_FMT " addr2=" MAC_FMT "\n",
+ sdata->dev->name, idx,
+ jiffies - entry->first_frag_time, entry->seq,
+ entry->last_frag, MAC_ARG(hdr->addr1),
+ MAC_ARG(hdr->addr2));
+#endif /* CONFIG_MAC80211_DEBUG */
+ __skb_queue_purge(&entry->skb_list);
+ }
+
+ __skb_queue_tail(&entry->skb_list, *skb); /* no need for locking */
+ *skb = NULL;
+ entry->first_frag_time = jiffies;
+ entry->seq = seq;
+ entry->rx_queue = rx_queue;
+ entry->last_frag = frag;
+ entry->ccmp = 0;
+ entry->extra_len = 0;
+
+ return entry;
+}
+
+static inline struct ieee80211_fragment_entry *
+ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata,
+ u16 fc, unsigned int frag, unsigned int seq,
+ int rx_queue, struct ieee80211_hdr *hdr)
+{
+ struct ieee80211_fragment_entry *entry;
+ int i, idx;
+
+ idx = sdata->fragment_next;
+ for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) {
+ struct ieee80211_hdr *f_hdr;
+ u16 f_fc;
+
+ idx--;
+ if (idx < 0)
+ idx = IEEE80211_FRAGMENT_MAX - 1;
+
+ entry = &sdata->fragments[idx];
+ if (skb_queue_empty(&entry->skb_list) || entry->seq != seq ||
+ entry->rx_queue != rx_queue ||
+ entry->last_frag + 1 != frag)
+ continue;
+
+ f_hdr = (struct ieee80211_hdr *) entry->skb_list.next->data;
+ f_fc = le16_to_cpu(f_hdr->frame_control);
+
+ if ((fc & IEEE80211_FCTL_FTYPE) != (f_fc & IEEE80211_FCTL_FTYPE) ||
+ compare_ether_addr(hdr->addr1, f_hdr->addr1) != 0 ||
+ compare_ether_addr(hdr->addr2, f_hdr->addr2) != 0)
+ continue;
+
+ if (entry->first_frag_time + 2 * HZ < jiffies) {
+ __skb_queue_purge(&entry->skb_list);
+ continue;
+ }
+ return entry;
+ }
+
+ return NULL;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_hdr *hdr;
+ u16 sc;
+ unsigned int frag, seq;
+ struct ieee80211_fragment_entry *entry;
+ struct sk_buff *skb;
+
+ hdr = (struct ieee80211_hdr *) rx->skb->data;
+ sc = le16_to_cpu(hdr->seq_ctrl);
+ frag = sc & IEEE80211_SCTL_FRAG;
+
+ if (likely((!(rx->fc & IEEE80211_FCTL_MOREFRAGS) && frag == 0) ||
+ (rx->skb)->len < 24 ||
+ is_multicast_ether_addr(hdr->addr1))) {
+ /* not fragmented */
+ goto out;
+ }
+ I802_DEBUG_INC(rx->local->rx_handlers_fragments);
+
+ seq = (sc & IEEE80211_SCTL_SEQ) >> 4;
+
+ if (frag == 0) {
+ /* This is the first fragment of a new frame. */
+ entry = ieee80211_reassemble_add(rx->sdata, frag, seq,
+ rx->u.rx.queue, &(rx->skb));
+ if (rx->key && rx->key->conf.alg == ALG_CCMP &&
+ (rx->fc & IEEE80211_FCTL_PROTECTED)) {
+ /* Store CCMP PN so that we can verify that the next
+ * fragment has a sequential PN value. */
+ entry->ccmp = 1;
+ memcpy(entry->last_pn,
+ rx->key->u.ccmp.rx_pn[rx->u.rx.queue],
+ CCMP_PN_LEN);
+ }
+ return TXRX_QUEUED;
+ }
+
+ /* This is a fragment for a frame that should already be pending in
+ * fragment cache. Add this fragment to the end of the pending entry.
+ */
+ entry = ieee80211_reassemble_find(rx->sdata, rx->fc, frag, seq,
+ rx->u.rx.queue, hdr);
+ if (!entry) {
+ I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag);
+ return TXRX_DROP;
+ }
+
+ /* Verify that MPDUs within one MSDU have sequential PN values.
+ * (IEEE 802.11i, 8.3.3.4.5) */
+ if (entry->ccmp) {
+ int i;
+ u8 pn[CCMP_PN_LEN], *rpn;
+ if (!rx->key || rx->key->conf.alg != ALG_CCMP)
+ return TXRX_DROP;
+ memcpy(pn, entry->last_pn, CCMP_PN_LEN);
+ for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
+ pn[i]++;
+ if (pn[i])
+ break;
+ }
+ rpn = rx->key->u.ccmp.rx_pn[rx->u.rx.queue];
+ if (memcmp(pn, rpn, CCMP_PN_LEN) != 0) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: defrag: CCMP PN not "
+ "sequential A2=" MAC_FMT
+ " PN=%02x%02x%02x%02x%02x%02x "
+ "(expected %02x%02x%02x%02x%02x%02x)\n",
+ rx->dev->name, MAC_ARG(hdr->addr2),
+ rpn[0], rpn[1], rpn[2], rpn[3], rpn[4],
+ rpn[5], pn[0], pn[1], pn[2], pn[3],
+ pn[4], pn[5]);
+ return TXRX_DROP;
+ }
+ memcpy(entry->last_pn, pn, CCMP_PN_LEN);
+ }
+
+ skb_pull(rx->skb, ieee80211_get_hdrlen(rx->fc));
+ __skb_queue_tail(&entry->skb_list, rx->skb);
+ entry->last_frag = frag;
+ entry->extra_len += rx->skb->len;
+ if (rx->fc & IEEE80211_FCTL_MOREFRAGS) {
+ rx->skb = NULL;
+ return TXRX_QUEUED;
+ }
+
+ rx->skb = __skb_dequeue(&entry->skb_list);
+ if (skb_tailroom(rx->skb) < entry->extra_len) {
+ I802_DEBUG_INC(rx->local->rx_expand_skb_head2);
+ if (unlikely(pskb_expand_head(rx->skb, 0, entry->extra_len,
+ GFP_ATOMIC))) {
+ I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag);
+ __skb_queue_purge(&entry->skb_list);
+ return TXRX_DROP;
+ }
+ }
+ while ((skb = __skb_dequeue(&entry->skb_list))) {
+ memcpy(skb_put(rx->skb, skb->len), skb->data, skb->len);
+ dev_kfree_skb(skb);
+ }
+
+ /* Complete frame has been reassembled - process it now */
+ rx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+
+ out:
+ if (rx->sta)
+ rx->sta->rx_packets++;
+ if (is_multicast_ether_addr(hdr->addr1))
+ rx->local->dot11MulticastReceivedFrameCount++;
+ else
+ ieee80211_led_rx(rx->local);
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
+{
+ struct sk_buff *skb;
+ int no_pending_pkts;
+
+ if (likely(!rx->sta ||
+ (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL ||
+ (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PSPOLL ||
+ !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)))
+ return TXRX_CONTINUE;
+
+ skb = skb_dequeue(&rx->sta->tx_filtered);
+ if (!skb) {
+ skb = skb_dequeue(&rx->sta->ps_tx_buf);
+ if (skb)
+ rx->local->total_ps_buffered--;
+ }
+ no_pending_pkts = skb_queue_empty(&rx->sta->tx_filtered) &&
+ skb_queue_empty(&rx->sta->ps_tx_buf);
+
+ if (skb) {
+ struct ieee80211_hdr *hdr =
+ (struct ieee80211_hdr *) skb->data;
+
+ /* tell TX path to send one frame even though the STA may
+ * still remain is PS mode after this frame exchange */
+ rx->sta->pspoll = 1;
+
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+ printk(KERN_DEBUG "STA " MAC_FMT " aid %d: PS Poll (entries "
+ "after %d)\n",
+ MAC_ARG(rx->sta->addr), rx->sta->aid,
+ skb_queue_len(&rx->sta->ps_tx_buf));
+#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+
+ /* Use MoreData flag to indicate whether there are more
+ * buffered frames for this STA */
+ if (no_pending_pkts) {
+ hdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREDATA);
+ rx->sta->flags &= ~WLAN_STA_TIM;
+ } else
+ hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
+
+ dev_queue_xmit(skb);
+
+ if (no_pending_pkts) {
+ if (rx->local->ops->set_tim)
+ rx->local->ops->set_tim(local_to_hw(rx->local),
+ rx->sta->aid, 0);
+ if (rx->sdata->bss)
+ bss_tim_clear(rx->local, rx->sdata->bss, rx->sta->aid);
+ }
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+ } else if (!rx->u.rx.sent_ps_buffered) {
+ printk(KERN_DEBUG "%s: STA " MAC_FMT " sent PS Poll even "
+ "though there is no buffered frames for it\n",
+ rx->dev->name, MAC_ARG(rx->sta->addr));
+#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+
+ }
+
+ /* Free PS Poll skb here instead of returning TXRX_DROP that would
+ * count as an dropped frame. */
+ dev_kfree_skb(rx->skb);
+
+ return TXRX_QUEUED;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx)
+{
+ u16 fc = rx->fc;
+ u8 *data = rx->skb->data;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) data;
+
+ if (!WLAN_FC_IS_QOS_DATA(fc))
+ return TXRX_CONTINUE;
+
+ /* remove the qos control field, update frame type and meta-data */
+ memmove(data + 2, data, ieee80211_get_hdrlen(fc) - 2);
+ hdr = (struct ieee80211_hdr *) skb_pull(rx->skb, 2);
+ /* change frame type to non QOS */
+ rx->fc = fc &= ~IEEE80211_STYPE_QOS_DATA;
+ hdr->frame_control = cpu_to_le16(fc);
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_802_1x_pae(struct ieee80211_txrx_data *rx)
+{
+ if (rx->sdata->eapol && ieee80211_is_eapol(rx->skb) &&
+ rx->sdata->type != IEEE80211_IF_TYPE_STA &&
+ (rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+ return TXRX_CONTINUE;
+
+ if (unlikely(rx->sdata->ieee802_1x &&
+ (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
+ (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
+ (!rx->sta || !(rx->sta->flags & WLAN_STA_AUTHORIZED)) &&
+ !ieee80211_is_eapol(rx->skb))) {
+#ifdef CONFIG_MAC80211_DEBUG
+ struct ieee80211_hdr *hdr =
+ (struct ieee80211_hdr *) rx->skb->data;
+ printk(KERN_DEBUG "%s: dropped frame from " MAC_FMT
+ " (unauthorized port)\n", rx->dev->name,
+ MAC_ARG(hdr->addr2));
+#endif /* CONFIG_MAC80211_DEBUG */
+ return TXRX_DROP;
+ }
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_drop_unencrypted(struct ieee80211_txrx_data *rx)
+{
+ /*
+ * Pass through unencrypted frames if the hardware has
+ * decrypted them already.
+ */
+ if (rx->u.rx.status->flag & RX_FLAG_DECRYPTED)
+ return TXRX_CONTINUE;
+
+ /* Drop unencrypted frames if key is set. */
+ if (unlikely(!(rx->fc & IEEE80211_FCTL_PROTECTED) &&
+ (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
+ (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
+ rx->sdata->drop_unencrypted &&
+ (rx->sdata->eapol == 0 || !ieee80211_is_eapol(rx->skb)))) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: RX non-WEP frame, but expected "
+ "encryption\n", rx->dev->name);
+ return TXRX_DROP;
+ }
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
+{
+ struct net_device *dev = rx->dev;
+ struct ieee80211_local *local = rx->local;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
+ u16 fc, hdrlen, ethertype;
+ u8 *payload;
+ u8 dst[ETH_ALEN];
+ u8 src[ETH_ALEN];
+ struct sk_buff *skb = rx->skb, *skb2;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ fc = rx->fc;
+ if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
+ return TXRX_CONTINUE;
+
+ if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
+ return TXRX_DROP;
+
+ hdrlen = ieee80211_get_hdrlen(fc);
+
+ /* convert IEEE 802.11 header + possible LLC headers into Ethernet
+ * header
+ * IEEE 802.11 address fields:
+ * ToDS FromDS Addr1 Addr2 Addr3 Addr4
+ * 0 0 DA SA BSSID n/a
+ * 0 1 DA BSSID SA n/a
+ * 1 0 BSSID SA DA n/a
+ * 1 1 RA TA DA SA
+ */
+
+ switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
+ case IEEE80211_FCTL_TODS:
+ /* BSSID SA DA */
+ memcpy(dst, hdr->addr3, ETH_ALEN);
+ memcpy(src, hdr->addr2, ETH_ALEN);
+
+ if (unlikely(sdata->type != IEEE80211_IF_TYPE_AP &&
+ sdata->type != IEEE80211_IF_TYPE_VLAN)) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: dropped ToDS frame "
+ "(BSSID=" MAC_FMT
+ " SA=" MAC_FMT
+ " DA=" MAC_FMT ")\n",
+ dev->name,
+ MAC_ARG(hdr->addr1),
+ MAC_ARG(hdr->addr2),
+ MAC_ARG(hdr->addr3));
+ return TXRX_DROP;
+ }
+ break;
+ case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
+ /* RA TA DA SA */
+ memcpy(dst, hdr->addr3, ETH_ALEN);
+ memcpy(src, hdr->addr4, ETH_ALEN);
+
+ if (unlikely(sdata->type != IEEE80211_IF_TYPE_WDS)) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: dropped FromDS&ToDS "
+ "frame (RA=" MAC_FMT
+ " TA=" MAC_FMT " DA=" MAC_FMT
+ " SA=" MAC_FMT ")\n",
+ rx->dev->name,
+ MAC_ARG(hdr->addr1),
+ MAC_ARG(hdr->addr2),
+ MAC_ARG(hdr->addr3),
+ MAC_ARG(hdr->addr4));
+ return TXRX_DROP;
+ }
+ break;
+ case IEEE80211_FCTL_FROMDS:
+ /* DA BSSID SA */
+ memcpy(dst, hdr->addr1, ETH_ALEN);
+ memcpy(src, hdr->addr3, ETH_ALEN);
+
+ if (sdata->type != IEEE80211_IF_TYPE_STA ||
+ (is_multicast_ether_addr(dst) &&
+ !compare_ether_addr(src, dev->dev_addr)))
+ return TXRX_DROP;
+ break;
+ case 0:
+ /* DA SA BSSID */
+ memcpy(dst, hdr->addr1, ETH_ALEN);
+ memcpy(src, hdr->addr2, ETH_ALEN);
+
+ if (sdata->type != IEEE80211_IF_TYPE_IBSS) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: dropped IBSS frame (DA="
+ MAC_FMT " SA=" MAC_FMT " BSSID=" MAC_FMT
+ ")\n",
+ dev->name, MAC_ARG(hdr->addr1),
+ MAC_ARG(hdr->addr2),
+ MAC_ARG(hdr->addr3));
+ }
+ return TXRX_DROP;
+ }
+ break;
+ }
+
+ payload = skb->data + hdrlen;
+
+ if (unlikely(skb->len - hdrlen < 8)) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: RX too short data frame "
+ "payload\n", dev->name);
+ }
+ return TXRX_DROP;
+ }
+
+ ethertype = (payload[6] << 8) | payload[7];
+
+ if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
+ ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
+ compare_ether_addr(payload, bridge_tunnel_header) == 0)) {
+ /* remove RFC1042 or Bridge-Tunnel encapsulation and
+ * replace EtherType */
+ skb_pull(skb, hdrlen + 6);
+ memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN);
+ memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN);
+ } else {
+ struct ethhdr *ehdr;
+ __be16 len;
+ skb_pull(skb, hdrlen);
+ len = htons(skb->len);
+ ehdr = (struct ethhdr *) skb_push(skb, sizeof(struct ethhdr));
+ memcpy(ehdr->h_dest, dst, ETH_ALEN);
+ memcpy(ehdr->h_source, src, ETH_ALEN);
+ ehdr->h_proto = len;
+ }
+ skb->dev = dev;
+
+ skb2 = NULL;
+
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += skb->len;
+
+ if (local->bridge_packets && (sdata->type == IEEE80211_IF_TYPE_AP
+ || sdata->type == IEEE80211_IF_TYPE_VLAN) &&
+ (rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
+ if (is_multicast_ether_addr(skb->data)) {
+ /* send multicast frames both to higher layers in
+ * local net stack and back to the wireless media */
+ skb2 = skb_copy(skb, GFP_ATOMIC);
+ if (!skb2 && net_ratelimit())
+ printk(KERN_DEBUG "%s: failed to clone "
+ "multicast frame\n", dev->name);
+ } else {
+ struct sta_info *dsta;
+ dsta = sta_info_get(local, skb->data);
+ if (dsta && !dsta->dev) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "Station with null "
+ "dev structure!\n");
+ } else if (dsta && dsta->dev == dev) {
+ /* Destination station is associated to this
+ * AP, so send the frame directly to it and
+ * do not pass the frame to local net stack.
+ */
+ skb2 = skb;
+ skb = NULL;
+ }
+ if (dsta)
+ sta_info_put(dsta);
+ }
+ }
+
+ if (skb) {
+ /* deliver to local stack */
+ skb->protocol = eth_type_trans(skb, dev);
+ memset(skb->cb, 0, sizeof(skb->cb));
+ netif_rx(skb);
+ }
+
+ if (skb2) {
+ /* send to wireless media */
+ skb2->protocol = __constant_htons(ETH_P_802_3);
+ skb_set_network_header(skb2, 0);
+ skb_set_mac_header(skb2, 0);
+ dev_queue_xmit(skb2);
+ }
+
+ return TXRX_QUEUED;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+ return TXRX_DROP;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
+ if ((sdata->type == IEEE80211_IF_TYPE_STA ||
+ sdata->type == IEEE80211_IF_TYPE_IBSS) &&
+ !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
+ ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->u.rx.status);
+ else
+ return TXRX_DROP;
+
+ return TXRX_QUEUED;
+}
+
+static inline ieee80211_txrx_result __ieee80211_invoke_rx_handlers(
+ struct ieee80211_local *local,
+ ieee80211_rx_handler *handlers,
+ struct ieee80211_txrx_data *rx,
+ struct sta_info *sta)
+{
+ ieee80211_rx_handler *handler;
+ ieee80211_txrx_result res = TXRX_DROP;
+
+ for (handler = handlers; *handler != NULL; handler++) {
+ res = (*handler)(rx);
+
+ switch (res) {
+ case TXRX_CONTINUE:
+ continue;
+ case TXRX_DROP:
+ I802_DEBUG_INC(local->rx_handlers_drop);
+ if (sta)
+ sta->rx_dropped++;
+ break;
+ case TXRX_QUEUED:
+ I802_DEBUG_INC(local->rx_handlers_queued);
+ break;
+ }
+ break;
+ }
+
+ if (res == TXRX_DROP)
+ dev_kfree_skb(rx->skb);
+ return res;
+}
+
+static inline void ieee80211_invoke_rx_handlers(struct ieee80211_local *local,
+ ieee80211_rx_handler *handlers,
+ struct ieee80211_txrx_data *rx,
+ struct sta_info *sta)
+{
+ if (__ieee80211_invoke_rx_handlers(local, handlers, rx, sta) ==
+ TXRX_CONTINUE)
+ dev_kfree_skb(rx->skb);
+}
+
+static void ieee80211_rx_michael_mic_report(struct net_device *dev,
+ struct ieee80211_hdr *hdr,
+ struct sta_info *sta,
+ struct ieee80211_txrx_data *rx)
+{
+ int keyidx, hdrlen;
+
+ hdrlen = ieee80211_get_hdrlen_from_skb(rx->skb);
+ if (rx->skb->len >= hdrlen + 4)
+ keyidx = rx->skb->data[hdrlen + 3] >> 6;
+ else
+ keyidx = -1;
+
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: TKIP hwaccel reported Michael MIC "
+ "failure from " MAC_FMT " to " MAC_FMT " keyidx=%d\n",
+ dev->name, MAC_ARG(hdr->addr2), MAC_ARG(hdr->addr1),
+ keyidx);
+
+ if (!sta) {
+ /*
+ * Some hardware seem to generate incorrect Michael MIC
+ * reports; ignore them to avoid triggering countermeasures.
+ */
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
+ "error for unknown address " MAC_FMT "\n",
+ dev->name, MAC_ARG(hdr->addr2));
+ goto ignore;
+ }
+
+ if (!(rx->fc & IEEE80211_FCTL_PROTECTED)) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
+ "error for a frame with no PROTECTED flag (src "
+ MAC_FMT ")\n", dev->name, MAC_ARG(hdr->addr2));
+ goto ignore;
+ }
+
+ if (rx->sdata->type == IEEE80211_IF_TYPE_AP && keyidx) {
+ /*
+ * APs with pairwise keys should never receive Michael MIC
+ * errors for non-zero keyidx because these are reserved for
+ * group keys and only the AP is sending real multicast
+ * frames in the BSS.
+ */
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: ignored Michael MIC error for "
+ "a frame with non-zero keyidx (%d)"
+ " (src " MAC_FMT ")\n", dev->name, keyidx,
+ MAC_ARG(hdr->addr2));
+ goto ignore;
+ }
+
+ if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
+ ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
+ (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
+ "error for a frame that cannot be encrypted "
+ "(fc=0x%04x) (src " MAC_FMT ")\n",
+ dev->name, rx->fc, MAC_ARG(hdr->addr2));
+ goto ignore;
+ }
+
+ mac80211_ev_michael_mic_failure(rx->dev, keyidx, hdr);
+ ignore:
+ dev_kfree_skb(rx->skb);
+ rx->skb = NULL;
+}
+
+ieee80211_rx_handler ieee80211_rx_handlers[] =
+{
+ ieee80211_rx_h_if_stats,
+ ieee80211_rx_h_passive_scan,
+ ieee80211_rx_h_check,
+ ieee80211_rx_h_decrypt,
+ ieee80211_rx_h_sta_process,
+ ieee80211_rx_h_defragment,
+ ieee80211_rx_h_ps_poll,
+ ieee80211_rx_h_michael_mic_verify,
+ /* this must be after decryption - so header is counted in MPDU mic
+ * must be before pae and data, so QOS_DATA format frames
+ * are not passed to user space by these functions
+ */
+ ieee80211_rx_h_remove_qos_control,
+ ieee80211_rx_h_802_1x_pae,
+ ieee80211_rx_h_drop_unencrypted,
+ ieee80211_rx_h_data,
+ ieee80211_rx_h_mgmt,
+ NULL
+};
+
+/* main receive path */
+
+static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
+ u8 *bssid, struct ieee80211_txrx_data *rx,
+ struct ieee80211_hdr *hdr)
+{
+ int multicast = is_multicast_ether_addr(hdr->addr1);
+
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_STA:
+ if (!bssid)
+ return 0;
+ if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
+ if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
+ return 0;
+ rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+ } else if (!multicast &&
+ compare_ether_addr(sdata->dev->dev_addr,
+ hdr->addr1) != 0) {
+ if (!(sdata->dev->flags & IFF_PROMISC))
+ return 0;
+ rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+ }
+ break;
+ case IEEE80211_IF_TYPE_IBSS:
+ if (!bssid)
+ return 0;
+ if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
+ if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
+ return 0;
+ rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+ } else if (!multicast &&
+ compare_ether_addr(sdata->dev->dev_addr,
+ hdr->addr1) != 0) {
+ if (!(sdata->dev->flags & IFF_PROMISC))
+ return 0;
+ rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+ } else if (!rx->sta)
+ rx->sta = ieee80211_ibss_add_sta(sdata->dev, rx->skb,
+ bssid, hdr->addr2);
+ break;
+ case IEEE80211_IF_TYPE_VLAN:
+ case IEEE80211_IF_TYPE_AP:
+ if (!bssid) {
+ if (compare_ether_addr(sdata->dev->dev_addr,
+ hdr->addr1))
+ return 0;
+ } else if (!ieee80211_bssid_match(bssid,
+ sdata->dev->dev_addr)) {
+ if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
+ return 0;
+ rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+ }
+ if (sdata->dev == sdata->local->mdev &&
+ !(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
+ /* do not receive anything via
+ * master device when not scanning */
+ return 0;
+ break;
+ case IEEE80211_IF_TYPE_WDS:
+ if (bssid ||
+ (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
+ return 0;
+ if (compare_ether_addr(sdata->u.wds.remote_addr, hdr->addr2))
+ return 0;
+ break;
+ case IEEE80211_IF_TYPE_MNTR:
+ /* take everything */
+ break;
+ case IEEE80211_IF_TYPE_INVALID:
+ /* should never get here */
+ WARN_ON(1);
+ break;
+ }
+
+ return 1;
+}
+
+/*
+ * This is the receive path handler. It is called by a low level driver when an
+ * 802.11 MPDU is received from the hardware.
+ */
+void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_rx_status *status)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_sub_if_data *sdata;
+ struct sta_info *sta;
+ struct ieee80211_hdr *hdr;
+ struct ieee80211_txrx_data rx;
+ u16 type;
+ int prepres;
+ struct ieee80211_sub_if_data *prev = NULL;
+ struct sk_buff *skb_new;
+ u8 *bssid;
+
+ /*
+ * key references and virtual interfaces are protected using RCU
+ * and this requires that we are in a read-side RCU section during
+ * receive processing
+ */
+ rcu_read_lock();
+
+ /*
+ * Frames with failed FCS/PLCP checksum are not returned,
+ * all other frames are returned without radiotap header
+ * if it was previously present.
+ * Also, frames with less than 16 bytes are dropped.
+ */
+ skb = ieee80211_rx_monitor(local, skb, status);
+ if (!skb) {
+ rcu_read_unlock();
+ return;
+ }
+
+ hdr = (struct ieee80211_hdr *) skb->data;
+ memset(&rx, 0, sizeof(rx));
+ rx.skb = skb;
+ rx.local = local;
+
+ rx.u.rx.status = status;
+ rx.fc = le16_to_cpu(hdr->frame_control);
+ type = rx.fc & IEEE80211_FCTL_FTYPE;
+
+ if (type == IEEE80211_FTYPE_DATA || type == IEEE80211_FTYPE_MGMT)
+ local->dot11ReceivedFragmentCount++;
+
+ sta = rx.sta = sta_info_get(local, hdr->addr2);
+ if (sta) {
+ rx.dev = rx.sta->dev;
+ rx.sdata = IEEE80211_DEV_TO_SUB_IF(rx.dev);
+ }
+
+ if ((status->flag & RX_FLAG_MMIC_ERROR)) {
+ ieee80211_rx_michael_mic_report(local->mdev, hdr, sta, &rx);
+ goto end;
+ }
+
+ if (unlikely(local->sta_scanning))
+ rx.flags |= IEEE80211_TXRXD_RXIN_SCAN;
+
+ if (__ieee80211_invoke_rx_handlers(local, local->rx_pre_handlers, &rx,
+ sta) != TXRX_CONTINUE)
+ goto end;
+ skb = rx.skb;
+
+ if (sta && !(sta->flags & (WLAN_STA_WDS | WLAN_STA_ASSOC_AP)) &&
+ !atomic_read(&local->iff_promiscs) &&
+ !is_multicast_ether_addr(hdr->addr1)) {
+ rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
+ ieee80211_invoke_rx_handlers(local, local->rx_handlers, &rx,
+ rx.sta);
+ sta_info_put(sta);
+ rcu_read_unlock();
+ return;
+ }
+
+ bssid = ieee80211_get_bssid(hdr, skb->len);
+
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ if (!netif_running(sdata->dev))
+ continue;
+
+ if (sdata->type == IEEE80211_IF_TYPE_MNTR)
+ continue;
+
+ rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
+ prepres = prepare_for_handlers(sdata, bssid, &rx, hdr);
+ /* prepare_for_handlers can change sta */
+ sta = rx.sta;
+
+ if (!prepres)
+ continue;
+
+ /*
+ * frame is destined for this interface, but if it's not
+ * also for the previous one we handle that after the
+ * loop to avoid copying the SKB once too much
+ */
+
+ if (!prev) {
+ prev = sdata;
+ continue;
+ }
+
+ /*
+ * frame was destined for the previous interface
+ * so invoke RX handlers for it
+ */
+
+ skb_new = skb_copy(skb, GFP_ATOMIC);
+ if (!skb_new) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: failed to copy "
+ "multicast frame for %s",
+ wiphy_name(local->hw.wiphy),
+ prev->dev->name);
+ continue;
+ }
+ rx.skb = skb_new;
+ rx.dev = prev->dev;
+ rx.sdata = prev;
+ ieee80211_invoke_rx_handlers(local, local->rx_handlers,
+ &rx, sta);
+ prev = sdata;
+ }
+ if (prev) {
+ rx.skb = skb;
+ rx.dev = prev->dev;
+ rx.sdata = prev;
+ ieee80211_invoke_rx_handlers(local, local->rx_handlers,
+ &rx, sta);
+ } else
+ dev_kfree_skb(skb);
+
+ end:
+ rcu_read_unlock();
+
+ if (sta)
+ sta_info_put(sta);
+}
+EXPORT_SYMBOL(__ieee80211_rx);
+
+/* This is a version of the rx handler that can be called from hard irq
+ * context. Post the skb on the queue and schedule the tasklet */
+void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_rx_status *status)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ BUILD_BUG_ON(sizeof(struct ieee80211_rx_status) > sizeof(skb->cb));
+
+ skb->dev = local->mdev;
+ /* copy status into skb->cb for use by tasklet */
+ memcpy(skb->cb, status, sizeof(*status));
+ skb->pkt_type = IEEE80211_RX_MSG;
+ skb_queue_tail(&local->skb_queue, skb);
+ tasklet_schedule(&local->tasklet);
+}
+EXPORT_SYMBOL(ieee80211_rx_irqsafe);
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/skbuff.h>
+#include <linux/if_arp.h>
+
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "ieee80211_rate.h"
+#include "sta_info.h"
+#include "debugfs_sta.h"
+
+/* Caller must hold local->sta_lock */
+static void sta_info_hash_add(struct ieee80211_local *local,
+ struct sta_info *sta)
+{
+ sta->hnext = local->sta_hash[STA_HASH(sta->addr)];
+ local->sta_hash[STA_HASH(sta->addr)] = sta;
+}
+
+
+/* Caller must hold local->sta_lock */
+static int sta_info_hash_del(struct ieee80211_local *local,
+ struct sta_info *sta)
+{
+ struct sta_info *s;
+
+ s = local->sta_hash[STA_HASH(sta->addr)];
+ if (!s)
+ return -ENOENT;
+ if (s == sta) {
+ local->sta_hash[STA_HASH(sta->addr)] = s->hnext;
+ return 0;
+ }
+
+ while (s->hnext && s->hnext != sta)
+ s = s->hnext;
+ if (s->hnext) {
+ s->hnext = sta->hnext;
+ return 0;
+ }
+
+ return -ENOENT;
+}
+
+struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr)
+{
+ struct sta_info *sta;
+
+ read_lock_bh(&local->sta_lock);
+ sta = local->sta_hash[STA_HASH(addr)];
+ while (sta) {
+ if (memcmp(sta->addr, addr, ETH_ALEN) == 0) {
+ __sta_info_get(sta);
+ break;
+ }
+ sta = sta->hnext;
+ }
+ read_unlock_bh(&local->sta_lock);
+
+ return sta;
+}
+EXPORT_SYMBOL(sta_info_get);
+
+int sta_info_min_txrate_get(struct ieee80211_local *local)
+{
+ struct sta_info *sta;
+ struct ieee80211_hw_mode *mode;
+ int min_txrate = 9999999;
+ int i;
+
+ read_lock_bh(&local->sta_lock);
+ mode = local->oper_hw_mode;
+ for (i = 0; i < STA_HASH_SIZE; i++) {
+ sta = local->sta_hash[i];
+ while (sta) {
+ if (sta->txrate < min_txrate)
+ min_txrate = sta->txrate;
+ sta = sta->hnext;
+ }
+ }
+ read_unlock_bh(&local->sta_lock);
+ if (min_txrate == 9999999)
+ min_txrate = 0;
+
+ return mode->rates[min_txrate].rate;
+}
+
+
+static void sta_info_release(struct kref *kref)
+{
+ struct sta_info *sta = container_of(kref, struct sta_info, kref);
+ struct ieee80211_local *local = sta->local;
+ struct sk_buff *skb;
+
+ /* free sta structure; it has already been removed from
+ * hash table etc. external structures. Make sure that all
+ * buffered frames are release (one might have been added
+ * after sta_info_free() was called). */
+ while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
+ local->total_ps_buffered--;
+ dev_kfree_skb_any(skb);
+ }
+ while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
+ dev_kfree_skb_any(skb);
+ }
+ rate_control_free_sta(sta->rate_ctrl, sta->rate_ctrl_priv);
+ rate_control_put(sta->rate_ctrl);
+ kfree(sta);
+}
+
+
+void sta_info_put(struct sta_info *sta)
+{
+ kref_put(&sta->kref, sta_info_release);
+}
+EXPORT_SYMBOL(sta_info_put);
+
+
+struct sta_info * sta_info_add(struct ieee80211_local *local,
+ struct net_device *dev, u8 *addr, gfp_t gfp)
+{
+ struct sta_info *sta;
+
+ sta = kzalloc(sizeof(*sta), gfp);
+ if (!sta)
+ return NULL;
+
+ kref_init(&sta->kref);
+
+ sta->rate_ctrl = rate_control_get(local->rate_ctrl);
+ sta->rate_ctrl_priv = rate_control_alloc_sta(sta->rate_ctrl, gfp);
+ if (!sta->rate_ctrl_priv) {
+ rate_control_put(sta->rate_ctrl);
+ kfree(sta);
+ return NULL;
+ }
+
+ memcpy(sta->addr, addr, ETH_ALEN);
+ sta->local = local;
+ sta->dev = dev;
+ skb_queue_head_init(&sta->ps_tx_buf);
+ skb_queue_head_init(&sta->tx_filtered);
+ __sta_info_get(sta); /* sta used by caller, decremented by
+ * sta_info_put() */
+ write_lock_bh(&local->sta_lock);
+ list_add(&sta->list, &local->sta_list);
+ local->num_sta++;
+ sta_info_hash_add(local, sta);
+ if (local->ops->sta_notify)
+ local->ops->sta_notify(local_to_hw(local), dev->ifindex,
+ STA_NOTIFY_ADD, addr);
+ write_unlock_bh(&local->sta_lock);
+
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: Added STA " MAC_FMT "\n",
+ wiphy_name(local->hw.wiphy), MAC_ARG(addr));
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ /* debugfs entry adding might sleep, so schedule process
+ * context task for adding entry for STAs that do not yet
+ * have one. */
+ queue_work(local->hw.workqueue, &local->sta_debugfs_add);
+#endif
+
+ return sta;
+}
+
+/* Caller must hold local->sta_lock */
+void sta_info_remove(struct sta_info *sta)
+{
+ struct ieee80211_local *local = sta->local;
+ struct ieee80211_sub_if_data *sdata;
+
+ /* don't do anything if we've been removed already */
+ if (sta_info_hash_del(local, sta))
+ return;
+
+ list_del(&sta->list);
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+ if (sta->flags & WLAN_STA_PS) {
+ sta->flags &= ~WLAN_STA_PS;
+ if (sdata->bss)
+ atomic_dec(&sdata->bss->num_sta_ps);
+ }
+ local->num_sta--;
+ sta_info_remove_aid_ptr(sta);
+
+}
+
+void sta_info_free(struct sta_info *sta)
+{
+ struct sk_buff *skb;
+ struct ieee80211_local *local = sta->local;
+
+ might_sleep();
+
+ write_lock_bh(&local->sta_lock);
+ sta_info_remove(sta);
+ write_unlock_bh(&local->sta_lock);
+
+ while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
+ local->total_ps_buffered--;
+ dev_kfree_skb(skb);
+ }
+ while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
+ dev_kfree_skb(skb);
+ }
+
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: Removed STA " MAC_FMT "\n",
+ wiphy_name(local->hw.wiphy), MAC_ARG(sta->addr));
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+
+ ieee80211_key_free(sta->key);
+ sta->key = NULL;
+
+ if (local->ops->sta_notify)
+ local->ops->sta_notify(local_to_hw(local), sta->dev->ifindex,
+ STA_NOTIFY_REMOVE, sta->addr);
+
+ rate_control_remove_sta_debugfs(sta);
+ ieee80211_sta_debugfs_remove(sta);
+
+ sta_info_put(sta);
+}
+
+
+static inline int sta_info_buffer_expired(struct ieee80211_local *local,
+ struct sta_info *sta,
+ struct sk_buff *skb)
+{
+ struct ieee80211_tx_packet_data *pkt_data;
+ int timeout;
+
+ if (!skb)
+ return 0;
+
+ pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+
+ /* Timeout: (2 * listen_interval * beacon_int * 1024 / 1000000) sec */
+ timeout = (sta->listen_interval * local->hw.conf.beacon_int * 32 /
+ 15625) * HZ;
+ if (timeout < STA_TX_BUFFER_EXPIRE)
+ timeout = STA_TX_BUFFER_EXPIRE;
+ return time_after(jiffies, pkt_data->jiffies + timeout);
+}
+
+
+static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local,
+ struct sta_info *sta)
+{
+ unsigned long flags;
+ struct sk_buff *skb;
+
+ if (skb_queue_empty(&sta->ps_tx_buf))
+ return;
+
+ for (;;) {
+ spin_lock_irqsave(&sta->ps_tx_buf.lock, flags);
+ skb = skb_peek(&sta->ps_tx_buf);
+ if (sta_info_buffer_expired(local, sta, skb)) {
+ skb = __skb_dequeue(&sta->ps_tx_buf);
+ if (skb_queue_empty(&sta->ps_tx_buf))
+ sta->flags &= ~WLAN_STA_TIM;
+ } else
+ skb = NULL;
+ spin_unlock_irqrestore(&sta->ps_tx_buf.lock, flags);
+
+ if (skb) {
+ local->total_ps_buffered--;
+ printk(KERN_DEBUG "Buffered frame expired (STA "
+ MAC_FMT ")\n", MAC_ARG(sta->addr));
+ dev_kfree_skb(skb);
+ } else
+ break;
+ }
+}
+
+
+static void sta_info_cleanup(unsigned long data)
+{
+ struct ieee80211_local *local = (struct ieee80211_local *) data;
+ struct sta_info *sta;
+
+ read_lock_bh(&local->sta_lock);
+ list_for_each_entry(sta, &local->sta_list, list) {
+ __sta_info_get(sta);
+ sta_info_cleanup_expire_buffered(local, sta);
+ sta_info_put(sta);
+ }
+ read_unlock_bh(&local->sta_lock);
+
+ local->sta_cleanup.expires = jiffies + STA_INFO_CLEANUP_INTERVAL;
+ add_timer(&local->sta_cleanup);
+}
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+static void sta_info_debugfs_add_task(struct work_struct *work)
+{
+ struct ieee80211_local *local =
+ container_of(work, struct ieee80211_local, sta_debugfs_add);
+ struct sta_info *sta, *tmp;
+
+ while (1) {
+ sta = NULL;
+ read_lock_bh(&local->sta_lock);
+ list_for_each_entry(tmp, &local->sta_list, list) {
+ if (!tmp->debugfs.dir) {
+ sta = tmp;
+ __sta_info_get(sta);
+ break;
+ }
+ }
+ read_unlock_bh(&local->sta_lock);
+
+ if (!sta)
+ break;
+
+ ieee80211_sta_debugfs_add(sta);
+ rate_control_add_sta_debugfs(sta);
+ sta_info_put(sta);
+ }
+}
+#endif
+
+void sta_info_init(struct ieee80211_local *local)
+{
+ rwlock_init(&local->sta_lock);
+ INIT_LIST_HEAD(&local->sta_list);
+
+ init_timer(&local->sta_cleanup);
+ local->sta_cleanup.expires = jiffies + STA_INFO_CLEANUP_INTERVAL;
+ local->sta_cleanup.data = (unsigned long) local;
+ local->sta_cleanup.function = sta_info_cleanup;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ INIT_WORK(&local->sta_debugfs_add, sta_info_debugfs_add_task);
+#endif
+}
+
+int sta_info_start(struct ieee80211_local *local)
+{
+ add_timer(&local->sta_cleanup);
+ return 0;
+}
+
+void sta_info_stop(struct ieee80211_local *local)
+{
+ del_timer(&local->sta_cleanup);
+ sta_info_flush(local, NULL);
+}
+
+void sta_info_remove_aid_ptr(struct sta_info *sta)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ if (sta->aid <= 0)
+ return;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+
+ if (sdata->local->ops->set_tim)
+ sdata->local->ops->set_tim(local_to_hw(sdata->local),
+ sta->aid, 0);
+ if (sdata->bss)
+ __bss_tim_clear(sdata->bss, sta->aid);
+}
+
+
+/**
+ * sta_info_flush - flush matching STA entries from the STA table
+ * @local: local interface data
+ * @dev: matching rule for the net device (sta->dev) or %NULL to match all STAs
+ */
+void sta_info_flush(struct ieee80211_local *local, struct net_device *dev)
+{
+ struct sta_info *sta, *tmp;
+ LIST_HEAD(tmp_list);
+
+ write_lock_bh(&local->sta_lock);
+ list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
+ if (!dev || dev == sta->dev) {
+ __sta_info_get(sta);
+ sta_info_remove(sta);
+ list_add_tail(&sta->list, &tmp_list);
+ }
+ write_unlock_bh(&local->sta_lock);
+
+ list_for_each_entry_safe(sta, tmp, &tmp_list, list) {
+ sta_info_free(sta);
+ sta_info_put(sta);
+ }
+}
--- /dev/null
+/*
+ * Copyright 2002-2005, Devicescape Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef STA_INFO_H
+#define STA_INFO_H
+
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/if_ether.h>
+#include <linux/kref.h>
+#include "ieee80211_key.h"
+
+/* Stations flags (struct sta_info::flags) */
+#define WLAN_STA_AUTH BIT(0)
+#define WLAN_STA_ASSOC BIT(1)
+#define WLAN_STA_PS BIT(2)
+#define WLAN_STA_TIM BIT(3) /* TIM bit is on for PS stations */
+#define WLAN_STA_PERM BIT(4) /* permanent; do not remove entry on expiration */
+#define WLAN_STA_AUTHORIZED BIT(5) /* If 802.1X is used, this flag is
+ * controlling whether STA is authorized to
+ * send and receive non-IEEE 802.1X frames
+ */
+#define WLAN_STA_SHORT_PREAMBLE BIT(7)
+/* whether this is an AP that we are associated with as a client */
+#define WLAN_STA_ASSOC_AP BIT(8)
+#define WLAN_STA_WME BIT(9)
+#define WLAN_STA_WDS BIT(27)
+
+
+struct sta_info {
+ struct kref kref;
+ struct list_head list;
+ struct sta_info *hnext; /* next entry in hash table list */
+
+ struct ieee80211_local *local;
+
+ u8 addr[ETH_ALEN];
+ u16 aid; /* STA's unique AID (1..2007), 0 = not yet assigned */
+ u32 flags; /* WLAN_STA_ */
+
+ struct sk_buff_head ps_tx_buf; /* buffer of TX frames for station in
+ * power saving state */
+ int pspoll; /* whether STA has send a PS Poll frame */
+ struct sk_buff_head tx_filtered; /* buffer of TX frames that were
+ * already given to low-level driver,
+ * but were filtered */
+ int clear_dst_mask;
+
+ unsigned long rx_packets, tx_packets; /* number of RX/TX MSDUs */
+ unsigned long rx_bytes, tx_bytes;
+ unsigned long tx_retry_failed, tx_retry_count;
+ unsigned long tx_filtered_count;
+
+ unsigned int wep_weak_iv_count; /* number of RX frames with weak IV */
+
+ unsigned long last_rx;
+ u32 supp_rates; /* bitmap of supported rates in local->curr_rates */
+ int txrate; /* index in local->curr_rates */
+ int last_txrate; /* last rate used to send a frame to this STA */
+ int last_nonerp_idx;
+
+ struct net_device *dev; /* which net device is this station associated
+ * to */
+
+ struct ieee80211_key *key;
+
+ u32 tx_num_consecutive_failures;
+ u32 tx_num_mpdu_ok;
+ u32 tx_num_mpdu_fail;
+
+ struct rate_control_ref *rate_ctrl;
+ void *rate_ctrl_priv;
+
+ /* last received seq/frag number from this STA (per RX queue) */
+ __le16 last_seq_ctrl[NUM_RX_DATA_QUEUES];
+ unsigned long num_duplicates; /* number of duplicate frames received
+ * from this STA */
+ unsigned long tx_fragments; /* number of transmitted MPDUs */
+ unsigned long rx_fragments; /* number of received MPDUs */
+ unsigned long rx_dropped; /* number of dropped MPDUs from this STA */
+
+ int last_rssi; /* RSSI of last received frame from this STA */
+ int last_signal; /* signal of last received frame from this STA */
+ int last_noise; /* noise of last received frame from this STA */
+ int last_ack_rssi[3]; /* RSSI of last received ACKs from this STA */
+ unsigned long last_ack;
+ int channel_use;
+ int channel_use_raw;
+
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
+ unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
+#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
+
+ u16 listen_interval;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct sta_info_debugfsdentries {
+ struct dentry *dir;
+ struct dentry *flags;
+ struct dentry *num_ps_buf_frames;
+ struct dentry *last_ack_rssi;
+ struct dentry *last_ack_ms;
+ struct dentry *inactive_ms;
+ struct dentry *last_seq_ctrl;
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ struct dentry *wme_rx_queue;
+ struct dentry *wme_tx_queue;
+#endif
+ } debugfs;
+#endif
+};
+
+
+/* Maximum number of concurrently registered stations */
+#define MAX_STA_COUNT 2007
+
+#define STA_HASH_SIZE 256
+#define STA_HASH(sta) (sta[5])
+
+
+/* Maximum number of frames to buffer per power saving station */
+#define STA_MAX_TX_BUFFER 128
+
+/* Minimum buffered frame expiry time. If STA uses listen interval that is
+ * smaller than this value, the minimum value here is used instead. */
+#define STA_TX_BUFFER_EXPIRE (10 * HZ)
+
+/* How often station data is cleaned up (e.g., expiration of buffered frames)
+ */
+#define STA_INFO_CLEANUP_INTERVAL (10 * HZ)
+
+static inline void __sta_info_get(struct sta_info *sta)
+{
+ kref_get(&sta->kref);
+}
+
+struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr);
+int sta_info_min_txrate_get(struct ieee80211_local *local);
+void sta_info_put(struct sta_info *sta);
+struct sta_info * sta_info_add(struct ieee80211_local *local,
+ struct net_device *dev, u8 *addr, gfp_t gfp);
+void sta_info_remove(struct sta_info *sta);
+void sta_info_free(struct sta_info *sta);
+void sta_info_init(struct ieee80211_local *local);
+int sta_info_start(struct ieee80211_local *local);
+void sta_info_stop(struct ieee80211_local *local);
+void sta_info_remove_aid_ptr(struct sta_info *sta);
+void sta_info_flush(struct ieee80211_local *local, struct net_device *dev);
+
+#endif /* STA_INFO_H */
--- /dev/null
+/*
+ * Copyright 2002-2004, Instant802 Networks, Inc.
+ * Copyright 2005, Devicescape Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/netdevice.h>
+
+#include <net/mac80211.h>
+#include "ieee80211_key.h"
+#include "tkip.h"
+#include "wep.h"
+
+
+/* TKIP key mixing functions */
+
+
+#define PHASE1_LOOP_COUNT 8
+
+
+/* 2-byte by 2-byte subset of the full AES S-box table; second part of this
+ * table is identical to first part but byte-swapped */
+static const u16 tkip_sbox[256] =
+{
+ 0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154,
+ 0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A,
+ 0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B,
+ 0x41EC, 0xB367, 0x5FFD, 0x45EA, 0x23BF, 0x53F7, 0xE496, 0x9B5B,
+ 0x75C2, 0xE11C, 0x3DAE, 0x4C6A, 0x6C5A, 0x7E41, 0xF502, 0x834F,
+ 0x685C, 0x51F4, 0xD134, 0xF908, 0xE293, 0xAB73, 0x6253, 0x2A3F,
+ 0x080C, 0x9552, 0x4665, 0x9D5E, 0x3028, 0x37A1, 0x0A0F, 0x2FB5,
+ 0x0E09, 0x2436, 0x1B9B, 0xDF3D, 0xCD26, 0x4E69, 0x7FCD, 0xEA9F,
+ 0x121B, 0x1D9E, 0x5874, 0x342E, 0x362D, 0xDCB2, 0xB4EE, 0x5BFB,
+ 0xA4F6, 0x764D, 0xB761, 0x7DCE, 0x527B, 0xDD3E, 0x5E71, 0x1397,
+ 0xA6F5, 0xB968, 0x0000, 0xC12C, 0x4060, 0xE31F, 0x79C8, 0xB6ED,
+ 0xD4BE, 0x8D46, 0x67D9, 0x724B, 0x94DE, 0x98D4, 0xB0E8, 0x854A,
+ 0xBB6B, 0xC52A, 0x4FE5, 0xED16, 0x86C5, 0x9AD7, 0x6655, 0x1194,
+ 0x8ACF, 0xE910, 0x0406, 0xFE81, 0xA0F0, 0x7844, 0x25BA, 0x4BE3,
+ 0xA2F3, 0x5DFE, 0x80C0, 0x058A, 0x3FAD, 0x21BC, 0x7048, 0xF104,
+ 0x63DF, 0x77C1, 0xAF75, 0x4263, 0x2030, 0xE51A, 0xFD0E, 0xBF6D,
+ 0x814C, 0x1814, 0x2635, 0xC32F, 0xBEE1, 0x35A2, 0x88CC, 0x2E39,
+ 0x9357, 0x55F2, 0xFC82, 0x7A47, 0xC8AC, 0xBAE7, 0x322B, 0xE695,
+ 0xC0A0, 0x1998, 0x9ED1, 0xA37F, 0x4466, 0x547E, 0x3BAB, 0x0B83,
+ 0x8CCA, 0xC729, 0x6BD3, 0x283C, 0xA779, 0xBCE2, 0x161D, 0xAD76,
+ 0xDB3B, 0x6456, 0x744E, 0x141E, 0x92DB, 0x0C0A, 0x486C, 0xB8E4,
+ 0x9F5D, 0xBD6E, 0x43EF, 0xC4A6, 0x39A8, 0x31A4, 0xD337, 0xF28B,
+ 0xD532, 0x8B43, 0x6E59, 0xDAB7, 0x018C, 0xB164, 0x9CD2, 0x49E0,
+ 0xD8B4, 0xACFA, 0xF307, 0xCF25, 0xCAAF, 0xF48E, 0x47E9, 0x1018,
+ 0x6FD5, 0xF088, 0x4A6F, 0x5C72, 0x3824, 0x57F1, 0x73C7, 0x9751,
+ 0xCB23, 0xA17C, 0xE89C, 0x3E21, 0x96DD, 0x61DC, 0x0D86, 0x0F85,
+ 0xE090, 0x7C42, 0x71C4, 0xCCAA, 0x90D8, 0x0605, 0xF701, 0x1C12,
+ 0xC2A3, 0x6A5F, 0xAEF9, 0x69D0, 0x1791, 0x9958, 0x3A27, 0x27B9,
+ 0xD938, 0xEB13, 0x2BB3, 0x2233, 0xD2BB, 0xA970, 0x0789, 0x33A7,
+ 0x2DB6, 0x3C22, 0x1592, 0xC920, 0x8749, 0xAAFF, 0x5078, 0xA57A,
+ 0x038F, 0x59F8, 0x0980, 0x1A17, 0x65DA, 0xD731, 0x84C6, 0xD0B8,
+ 0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A,
+};
+
+
+static inline u16 Mk16(u8 x, u8 y)
+{
+ return ((u16) x << 8) | (u16) y;
+}
+
+
+static inline u8 Hi8(u16 v)
+{
+ return v >> 8;
+}
+
+
+static inline u8 Lo8(u16 v)
+{
+ return v & 0xff;
+}
+
+
+static inline u16 Hi16(u32 v)
+{
+ return v >> 16;
+}
+
+
+static inline u16 Lo16(u32 v)
+{
+ return v & 0xffff;
+}
+
+
+static inline u16 RotR1(u16 v)
+{
+ return (v >> 1) | ((v & 0x0001) << 15);
+}
+
+
+static inline u16 tkip_S(u16 val)
+{
+ u16 a = tkip_sbox[Hi8(val)];
+
+ return tkip_sbox[Lo8(val)] ^ Hi8(a) ^ (Lo8(a) << 8);
+}
+
+
+
+/* P1K := Phase1(TA, TK, TSC)
+ * TA = transmitter address (48 bits)
+ * TK = dot11DefaultKeyValue or dot11KeyMappingValue (128 bits)
+ * TSC = TKIP sequence counter (48 bits, only 32 msb bits used)
+ * P1K: 80 bits
+ */
+static void tkip_mixing_phase1(const u8 *ta, const u8 *tk, u32 tsc_IV32,
+ u16 *p1k)
+{
+ int i, j;
+
+ p1k[0] = Lo16(tsc_IV32);
+ p1k[1] = Hi16(tsc_IV32);
+ p1k[2] = Mk16(ta[1], ta[0]);
+ p1k[3] = Mk16(ta[3], ta[2]);
+ p1k[4] = Mk16(ta[5], ta[4]);
+
+ for (i = 0; i < PHASE1_LOOP_COUNT; i++) {
+ j = 2 * (i & 1);
+ p1k[0] += tkip_S(p1k[4] ^ Mk16(tk[ 1 + j], tk[ 0 + j]));
+ p1k[1] += tkip_S(p1k[0] ^ Mk16(tk[ 5 + j], tk[ 4 + j]));
+ p1k[2] += tkip_S(p1k[1] ^ Mk16(tk[ 9 + j], tk[ 8 + j]));
+ p1k[3] += tkip_S(p1k[2] ^ Mk16(tk[13 + j], tk[12 + j]));
+ p1k[4] += tkip_S(p1k[3] ^ Mk16(tk[ 1 + j], tk[ 0 + j])) + i;
+ }
+}
+
+
+static void tkip_mixing_phase2(const u16 *p1k, const u8 *tk, u16 tsc_IV16,
+ u8 *rc4key)
+{
+ u16 ppk[6];
+ int i;
+
+ ppk[0] = p1k[0];
+ ppk[1] = p1k[1];
+ ppk[2] = p1k[2];
+ ppk[3] = p1k[3];
+ ppk[4] = p1k[4];
+ ppk[5] = p1k[4] + tsc_IV16;
+
+ ppk[0] += tkip_S(ppk[5] ^ Mk16(tk[ 1], tk[ 0]));
+ ppk[1] += tkip_S(ppk[0] ^ Mk16(tk[ 3], tk[ 2]));
+ ppk[2] += tkip_S(ppk[1] ^ Mk16(tk[ 5], tk[ 4]));
+ ppk[3] += tkip_S(ppk[2] ^ Mk16(tk[ 7], tk[ 6]));
+ ppk[4] += tkip_S(ppk[3] ^ Mk16(tk[ 9], tk[ 8]));
+ ppk[5] += tkip_S(ppk[4] ^ Mk16(tk[11], tk[10]));
+ ppk[0] += RotR1(ppk[5] ^ Mk16(tk[13], tk[12]));
+ ppk[1] += RotR1(ppk[0] ^ Mk16(tk[15], tk[14]));
+ ppk[2] += RotR1(ppk[1]);
+ ppk[3] += RotR1(ppk[2]);
+ ppk[4] += RotR1(ppk[3]);
+ ppk[5] += RotR1(ppk[4]);
+
+ rc4key[0] = Hi8(tsc_IV16);
+ rc4key[1] = (Hi8(tsc_IV16) | 0x20) & 0x7f;
+ rc4key[2] = Lo8(tsc_IV16);
+ rc4key[3] = Lo8((ppk[5] ^ Mk16(tk[1], tk[0])) >> 1);
+
+ for (i = 0; i < 6; i++) {
+ rc4key[4 + 2 * i] = Lo8(ppk[i]);
+ rc4key[5 + 2 * i] = Hi8(ppk[i]);
+ }
+}
+
+
+/* Add TKIP IV and Ext. IV at @pos. @iv0, @iv1, and @iv2 are the first octets
+ * of the IV. Returns pointer to the octet following IVs (i.e., beginning of
+ * the packet payload). */
+u8 * ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key,
+ u8 iv0, u8 iv1, u8 iv2)
+{
+ *pos++ = iv0;
+ *pos++ = iv1;
+ *pos++ = iv2;
+ *pos++ = (key->conf.keyidx << 6) | (1 << 5) /* Ext IV */;
+ *pos++ = key->u.tkip.iv32 & 0xff;
+ *pos++ = (key->u.tkip.iv32 >> 8) & 0xff;
+ *pos++ = (key->u.tkip.iv32 >> 16) & 0xff;
+ *pos++ = (key->u.tkip.iv32 >> 24) & 0xff;
+ return pos;
+}
+
+
+void ieee80211_tkip_gen_phase1key(struct ieee80211_key *key, u8 *ta,
+ u16 *phase1key)
+{
+ tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
+ key->u.tkip.iv32, phase1key);
+}
+
+void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta,
+ u8 *rc4key)
+{
+ /* Calculate per-packet key */
+ if (key->u.tkip.iv16 == 0 || !key->u.tkip.tx_initialized) {
+ /* IV16 wrapped around - perform TKIP phase 1 */
+ tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
+ key->u.tkip.iv32, key->u.tkip.p1k);
+ key->u.tkip.tx_initialized = 1;
+ }
+
+ tkip_mixing_phase2(key->u.tkip.p1k,
+ &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
+ key->u.tkip.iv16, rc4key);
+}
+
+/* Encrypt packet payload with TKIP using @key. @pos is a pointer to the
+ * beginning of the buffer containing payload. This payload must include
+ * headroom of eight octets for IV and Ext. IV and taildroom of four octets
+ * for ICV. @payload_len is the length of payload (_not_ including extra
+ * headroom and tailroom). @ta is the transmitter addresses. */
+void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
+ struct ieee80211_key *key,
+ u8 *pos, size_t payload_len, u8 *ta)
+{
+ u8 rc4key[16];
+
+ ieee80211_tkip_gen_rc4key(key, ta, rc4key);
+ pos = ieee80211_tkip_add_iv(pos, key, rc4key[0], rc4key[1], rc4key[2]);
+ ieee80211_wep_encrypt_data(tfm, rc4key, 16, pos, payload_len);
+}
+
+
+/* Decrypt packet payload with TKIP using @key. @pos is a pointer to the
+ * beginning of the buffer containing IEEE 802.11 header payload, i.e.,
+ * including IV, Ext. IV, real data, Michael MIC, ICV. @payload_len is the
+ * length of payload, including IV, Ext. IV, MIC, ICV. */
+int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
+ struct ieee80211_key *key,
+ u8 *payload, size_t payload_len, u8 *ta,
+ int only_iv, int queue,
+ u32 *out_iv32, u16 *out_iv16)
+{
+ u32 iv32;
+ u32 iv16;
+ u8 rc4key[16], keyid, *pos = payload;
+ int res;
+
+ if (payload_len < 12)
+ return -1;
+
+ iv16 = (pos[0] << 8) | pos[2];
+ keyid = pos[3];
+ iv32 = pos[4] | (pos[5] << 8) | (pos[6] << 16) | (pos[7] << 24);
+ pos += 8;
+#ifdef CONFIG_TKIP_DEBUG
+ {
+ int i;
+ printk(KERN_DEBUG "TKIP decrypt: data(len=%zd)", payload_len);
+ for (i = 0; i < payload_len; i++)
+ printk(" %02x", payload[i]);
+ printk("\n");
+ printk(KERN_DEBUG "TKIP decrypt: iv16=%04x iv32=%08x\n",
+ iv16, iv32);
+ }
+#endif /* CONFIG_TKIP_DEBUG */
+
+ if (!(keyid & (1 << 5)))
+ return TKIP_DECRYPT_NO_EXT_IV;
+
+ if ((keyid >> 6) != key->conf.keyidx)
+ return TKIP_DECRYPT_INVALID_KEYIDX;
+
+ if (key->u.tkip.rx_initialized[queue] &&
+ (iv32 < key->u.tkip.iv32_rx[queue] ||
+ (iv32 == key->u.tkip.iv32_rx[queue] &&
+ iv16 <= key->u.tkip.iv16_rx[queue]))) {
+#ifdef CONFIG_TKIP_DEBUG
+ printk(KERN_DEBUG "TKIP replay detected for RX frame from "
+ MAC_FMT " (RX IV (%04x,%02x) <= prev. IV (%04x,%02x)\n",
+ MAC_ARG(ta),
+ iv32, iv16, key->u.tkip.iv32_rx[queue],
+ key->u.tkip.iv16_rx[queue]);
+#endif /* CONFIG_TKIP_DEBUG */
+ return TKIP_DECRYPT_REPLAY;
+ }
+
+ if (only_iv) {
+ res = TKIP_DECRYPT_OK;
+ key->u.tkip.rx_initialized[queue] = 1;
+ goto done;
+ }
+
+ if (!key->u.tkip.rx_initialized[queue] ||
+ key->u.tkip.iv32_rx[queue] != iv32) {
+ key->u.tkip.rx_initialized[queue] = 1;
+ /* IV16 wrapped around - perform TKIP phase 1 */
+ tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
+ iv32, key->u.tkip.p1k_rx[queue]);
+#ifdef CONFIG_TKIP_DEBUG
+ {
+ int i;
+ printk(KERN_DEBUG "TKIP decrypt: Phase1 TA=" MAC_FMT
+ " TK=", MAC_ARG(ta));
+ for (i = 0; i < 16; i++)
+ printk("%02x ",
+ key->conf.key[
+ ALG_TKIP_TEMP_ENCR_KEY + i]);
+ printk("\n");
+ printk(KERN_DEBUG "TKIP decrypt: P1K=");
+ for (i = 0; i < 5; i++)
+ printk("%04x ", key->u.tkip.p1k_rx[queue][i]);
+ printk("\n");
+ }
+#endif /* CONFIG_TKIP_DEBUG */
+ }
+
+ tkip_mixing_phase2(key->u.tkip.p1k_rx[queue],
+ &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
+ iv16, rc4key);
+#ifdef CONFIG_TKIP_DEBUG
+ {
+ int i;
+ printk(KERN_DEBUG "TKIP decrypt: Phase2 rc4key=");
+ for (i = 0; i < 16; i++)
+ printk("%02x ", rc4key[i]);
+ printk("\n");
+ }
+#endif /* CONFIG_TKIP_DEBUG */
+
+ res = ieee80211_wep_decrypt_data(tfm, rc4key, 16, pos, payload_len - 12);
+ done:
+ if (res == TKIP_DECRYPT_OK) {
+ /*
+ * Record previously received IV, will be copied into the
+ * key information after MIC verification. It is possible
+ * that we don't catch replays of fragments but that's ok
+ * because the Michael MIC verication will then fail.
+ */
+ *out_iv32 = iv32;
+ *out_iv16 = iv16;
+ }
+
+ return res;
+}
+
+
--- /dev/null
+/*
+ * Copyright 2002-2004, Instant802 Networks, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef TKIP_H
+#define TKIP_H
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+#include "ieee80211_key.h"
+
+u8 * ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key,
+ u8 iv0, u8 iv1, u8 iv2);
+void ieee80211_tkip_gen_phase1key(struct ieee80211_key *key, u8 *ta,
+ u16 *phase1key);
+void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta,
+ u8 *rc4key);
+void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
+ struct ieee80211_key *key,
+ u8 *pos, size_t payload_len, u8 *ta);
+enum {
+ TKIP_DECRYPT_OK = 0,
+ TKIP_DECRYPT_NO_EXT_IV = -1,
+ TKIP_DECRYPT_INVALID_KEYIDX = -2,
+ TKIP_DECRYPT_REPLAY = -3,
+};
+int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
+ struct ieee80211_key *key,
+ u8 *payload, size_t payload_len, u8 *ta,
+ int only_iv, int queue,
+ u32 *out_iv32, u16 *out_iv16);
+
+#endif /* TKIP_H */
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *
+ * Transmit and frame generation functions.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/skbuff.h>
+#include <linux/etherdevice.h>
+#include <linux/bitmap.h>
+#include <linux/rcupdate.h>
+#include <net/ieee80211_radiotap.h>
+#include <net/cfg80211.h>
+#include <net/mac80211.h>
+#include <asm/unaligned.h>
+
+#include "ieee80211_i.h"
+#include "ieee80211_led.h"
+#include "wep.h"
+#include "wpa.h"
+#include "wme.h"
+#include "ieee80211_rate.h"
+
+#define IEEE80211_TX_OK 0
+#define IEEE80211_TX_AGAIN 1
+#define IEEE80211_TX_FRAG_AGAIN 2
+
+/* misc utils */
+
+static inline void ieee80211_include_sequence(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_hdr *hdr)
+{
+ /* Set the sequence number for this frame. */
+ hdr->seq_ctrl = cpu_to_le16(sdata->sequence);
+
+ /* Increase the sequence number. */
+ sdata->sequence = (sdata->sequence + 0x10) & IEEE80211_SCTL_SEQ;
+}
+
+#ifdef CONFIG_MAC80211_LOWTX_FRAME_DUMP
+static void ieee80211_dump_frame(const char *ifname, const char *title,
+ const struct sk_buff *skb)
+{
+ const struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u16 fc;
+ int hdrlen;
+
+ printk(KERN_DEBUG "%s: %s (len=%d)", ifname, title, skb->len);
+ if (skb->len < 4) {
+ printk("\n");
+ return;
+ }
+
+ fc = le16_to_cpu(hdr->frame_control);
+ hdrlen = ieee80211_get_hdrlen(fc);
+ if (hdrlen > skb->len)
+ hdrlen = skb->len;
+ if (hdrlen >= 4)
+ printk(" FC=0x%04x DUR=0x%04x",
+ fc, le16_to_cpu(hdr->duration_id));
+ if (hdrlen >= 10)
+ printk(" A1=" MAC_FMT, MAC_ARG(hdr->addr1));
+ if (hdrlen >= 16)
+ printk(" A2=" MAC_FMT, MAC_ARG(hdr->addr2));
+ if (hdrlen >= 24)
+ printk(" A3=" MAC_FMT, MAC_ARG(hdr->addr3));
+ if (hdrlen >= 30)
+ printk(" A4=" MAC_FMT, MAC_ARG(hdr->addr4));
+ printk("\n");
+}
+#else /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
+static inline void ieee80211_dump_frame(const char *ifname, const char *title,
+ struct sk_buff *skb)
+{
+}
+#endif /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
+
+static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
+ int next_frag_len)
+{
+ int rate, mrate, erp, dur, i;
+ struct ieee80211_rate *txrate = tx->u.tx.rate;
+ struct ieee80211_local *local = tx->local;
+ struct ieee80211_hw_mode *mode = tx->u.tx.mode;
+
+ erp = txrate->flags & IEEE80211_RATE_ERP;
+
+ /*
+ * data and mgmt (except PS Poll):
+ * - during CFP: 32768
+ * - during contention period:
+ * if addr1 is group address: 0
+ * if more fragments = 0 and addr1 is individual address: time to
+ * transmit one ACK plus SIFS
+ * if more fragments = 1 and addr1 is individual address: time to
+ * transmit next fragment plus 2 x ACK plus 3 x SIFS
+ *
+ * IEEE 802.11, 9.6:
+ * - control response frame (CTS or ACK) shall be transmitted using the
+ * same rate as the immediately previous frame in the frame exchange
+ * sequence, if this rate belongs to the PHY mandatory rates, or else
+ * at the highest possible rate belonging to the PHY rates in the
+ * BSSBasicRateSet
+ */
+
+ if ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) {
+ /* TODO: These control frames are not currently sent by
+ * 80211.o, but should they be implemented, this function
+ * needs to be updated to support duration field calculation.
+ *
+ * RTS: time needed to transmit pending data/mgmt frame plus
+ * one CTS frame plus one ACK frame plus 3 x SIFS
+ * CTS: duration of immediately previous RTS minus time
+ * required to transmit CTS and its SIFS
+ * ACK: 0 if immediately previous directed data/mgmt had
+ * more=0, with more=1 duration in ACK frame is duration
+ * from previous frame minus time needed to transmit ACK
+ * and its SIFS
+ * PS Poll: BIT(15) | BIT(14) | aid
+ */
+ return 0;
+ }
+
+ /* data/mgmt */
+ if (0 /* FIX: data/mgmt during CFP */)
+ return 32768;
+
+ if (group_addr) /* Group address as the destination - no ACK */
+ return 0;
+
+ /* Individual destination address:
+ * IEEE 802.11, Ch. 9.6 (after IEEE 802.11g changes)
+ * CTS and ACK frames shall be transmitted using the highest rate in
+ * basic rate set that is less than or equal to the rate of the
+ * immediately previous frame and that is using the same modulation
+ * (CCK or OFDM). If no basic rate set matches with these requirements,
+ * the highest mandatory rate of the PHY that is less than or equal to
+ * the rate of the previous frame is used.
+ * Mandatory rates for IEEE 802.11g PHY: 1, 2, 5.5, 11, 6, 12, 24 Mbps
+ */
+ rate = -1;
+ mrate = 10; /* use 1 Mbps if everything fails */
+ for (i = 0; i < mode->num_rates; i++) {
+ struct ieee80211_rate *r = &mode->rates[i];
+ if (r->rate > txrate->rate)
+ break;
+
+ if (IEEE80211_RATE_MODULATION(txrate->flags) !=
+ IEEE80211_RATE_MODULATION(r->flags))
+ continue;
+
+ if (r->flags & IEEE80211_RATE_BASIC)
+ rate = r->rate;
+ else if (r->flags & IEEE80211_RATE_MANDATORY)
+ mrate = r->rate;
+ }
+ if (rate == -1) {
+ /* No matching basic rate found; use highest suitable mandatory
+ * PHY rate */
+ rate = mrate;
+ }
+
+ /* Time needed to transmit ACK
+ * (10 bytes + 4-byte FCS = 112 bits) plus SIFS; rounded up
+ * to closest integer */
+
+ dur = ieee80211_frame_duration(local, 10, rate, erp,
+ tx->sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
+
+ if (next_frag_len) {
+ /* Frame is fragmented: duration increases with time needed to
+ * transmit next fragment plus ACK and 2 x SIFS. */
+ dur *= 2; /* ACK + SIFS */
+ /* next fragment */
+ dur += ieee80211_frame_duration(local, next_frag_len,
+ txrate->rate, erp,
+ tx->sdata->flags &
+ IEEE80211_SDATA_SHORT_PREAMBLE);
+ }
+
+ return dur;
+}
+
+static inline int __ieee80211_queue_stopped(const struct ieee80211_local *local,
+ int queue)
+{
+ return test_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]);
+}
+
+static inline int __ieee80211_queue_pending(const struct ieee80211_local *local,
+ int queue)
+{
+ return test_bit(IEEE80211_LINK_STATE_PENDING, &local->state[queue]);
+}
+
+static int inline is_ieee80211_device(struct net_device *dev,
+ struct net_device *master)
+{
+ return (wdev_priv(dev->ieee80211_ptr) ==
+ wdev_priv(master->ieee80211_ptr));
+}
+
+/* tx handlers */
+
+static ieee80211_txrx_result
+ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
+{
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ struct sk_buff *skb = tx->skb;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+ u32 sta_flags;
+
+ if (unlikely(tx->flags & IEEE80211_TXRXD_TX_INJECTED))
+ return TXRX_CONTINUE;
+
+ if (unlikely(tx->local->sta_scanning != 0) &&
+ ((tx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
+ (tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ))
+ return TXRX_DROP;
+
+ if (tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED)
+ return TXRX_CONTINUE;
+
+ sta_flags = tx->sta ? tx->sta->flags : 0;
+
+ if (likely(tx->flags & IEEE80211_TXRXD_TXUNICAST)) {
+ if (unlikely(!(sta_flags & WLAN_STA_ASSOC) &&
+ tx->sdata->type != IEEE80211_IF_TYPE_IBSS &&
+ (tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: dropped data frame to not "
+ "associated station " MAC_FMT "\n",
+ tx->dev->name, MAC_ARG(hdr->addr1));
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+ I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc);
+ return TXRX_DROP;
+ }
+ } else {
+ if (unlikely((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
+ tx->local->num_sta == 0 &&
+ tx->sdata->type != IEEE80211_IF_TYPE_IBSS)) {
+ /*
+ * No associated STAs - no need to send multicast
+ * frames.
+ */
+ return TXRX_DROP;
+ }
+ return TXRX_CONTINUE;
+ }
+
+ if (unlikely(/* !injected && */ tx->sdata->ieee802_1x &&
+ !(sta_flags & WLAN_STA_AUTHORIZED))) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: dropped frame to " MAC_FMT
+ " (unauthorized port)\n", tx->dev->name,
+ MAC_ARG(hdr->addr1));
+#endif
+ I802_DEBUG_INC(tx->local->tx_handlers_drop_unauth_port);
+ return TXRX_DROP;
+ }
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_tx_h_sequence(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
+
+ if (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control)) >= 24)
+ ieee80211_include_sequence(tx->sdata, hdr);
+
+ return TXRX_CONTINUE;
+}
+
+/* This function is called whenever the AP is about to exceed the maximum limit
+ * of buffered frames for power saving STAs. This situation should not really
+ * happen often during normal operation, so dropping the oldest buffered packet
+ * from each queue should be OK to make some room for new frames. */
+static void purge_old_ps_buffers(struct ieee80211_local *local)
+{
+ int total = 0, purged = 0;
+ struct sk_buff *skb;
+ struct ieee80211_sub_if_data *sdata;
+ struct sta_info *sta;
+
+ /*
+ * virtual interfaces are protected by RCU
+ */
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ struct ieee80211_if_ap *ap;
+ if (sdata->dev == local->mdev ||
+ sdata->type != IEEE80211_IF_TYPE_AP)
+ continue;
+ ap = &sdata->u.ap;
+ skb = skb_dequeue(&ap->ps_bc_buf);
+ if (skb) {
+ purged++;
+ dev_kfree_skb(skb);
+ }
+ total += skb_queue_len(&ap->ps_bc_buf);
+ }
+ rcu_read_unlock();
+
+ read_lock_bh(&local->sta_lock);
+ list_for_each_entry(sta, &local->sta_list, list) {
+ skb = skb_dequeue(&sta->ps_tx_buf);
+ if (skb) {
+ purged++;
+ dev_kfree_skb(skb);
+ }
+ total += skb_queue_len(&sta->ps_tx_buf);
+ }
+ read_unlock_bh(&local->sta_lock);
+
+ local->total_ps_buffered = total;
+ printk(KERN_DEBUG "%s: PS buffers full - purged %d frames\n",
+ wiphy_name(local->hw.wiphy), purged);
+}
+
+static inline ieee80211_txrx_result
+ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
+{
+ /* broadcast/multicast frame */
+ /* If any of the associated stations is in power save mode,
+ * the frame is buffered to be sent after DTIM beacon frame */
+ if ((tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) &&
+ tx->sdata->type != IEEE80211_IF_TYPE_WDS &&
+ tx->sdata->bss && atomic_read(&tx->sdata->bss->num_sta_ps) &&
+ !(tx->fc & IEEE80211_FCTL_ORDER)) {
+ if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
+ purge_old_ps_buffers(tx->local);
+ if (skb_queue_len(&tx->sdata->bss->ps_bc_buf) >=
+ AP_MAX_BC_BUFFER) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: BC TX buffer full - "
+ "dropping the oldest frame\n",
+ tx->dev->name);
+ }
+ dev_kfree_skb(skb_dequeue(&tx->sdata->bss->ps_bc_buf));
+ } else
+ tx->local->total_ps_buffered++;
+ skb_queue_tail(&tx->sdata->bss->ps_bc_buf, tx->skb);
+ return TXRX_QUEUED;
+ }
+
+ return TXRX_CONTINUE;
+}
+
+static inline ieee80211_txrx_result
+ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
+{
+ struct sta_info *sta = tx->sta;
+
+ if (unlikely(!sta ||
+ ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
+ (tx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP)))
+ return TXRX_CONTINUE;
+
+ if (unlikely((sta->flags & WLAN_STA_PS) && !sta->pspoll)) {
+ struct ieee80211_tx_packet_data *pkt_data;
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+ printk(KERN_DEBUG "STA " MAC_FMT " aid %d: PS buffer (entries "
+ "before %d)\n",
+ MAC_ARG(sta->addr), sta->aid,
+ skb_queue_len(&sta->ps_tx_buf));
+#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+ sta->flags |= WLAN_STA_TIM;
+ if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
+ purge_old_ps_buffers(tx->local);
+ if (skb_queue_len(&sta->ps_tx_buf) >= STA_MAX_TX_BUFFER) {
+ struct sk_buff *old = skb_dequeue(&sta->ps_tx_buf);
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: STA " MAC_FMT " TX "
+ "buffer full - dropping oldest frame\n",
+ tx->dev->name, MAC_ARG(sta->addr));
+ }
+ dev_kfree_skb(old);
+ } else
+ tx->local->total_ps_buffered++;
+ /* Queue frame to be sent after STA sends an PS Poll frame */
+ if (skb_queue_empty(&sta->ps_tx_buf)) {
+ if (tx->local->ops->set_tim)
+ tx->local->ops->set_tim(local_to_hw(tx->local),
+ sta->aid, 1);
+ if (tx->sdata->bss)
+ bss_tim_set(tx->local, tx->sdata->bss, sta->aid);
+ }
+ pkt_data = (struct ieee80211_tx_packet_data *)tx->skb->cb;
+ pkt_data->jiffies = jiffies;
+ skb_queue_tail(&sta->ps_tx_buf, tx->skb);
+ return TXRX_QUEUED;
+ }
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+ else if (unlikely(sta->flags & WLAN_STA_PS)) {
+ printk(KERN_DEBUG "%s: STA " MAC_FMT " in PS mode, but pspoll "
+ "set -> send frame\n", tx->dev->name,
+ MAC_ARG(sta->addr));
+ }
+#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+ sta->pspoll = 0;
+
+ return TXRX_CONTINUE;
+}
+
+
+static ieee80211_txrx_result
+ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx)
+{
+ if (unlikely(tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED))
+ return TXRX_CONTINUE;
+
+ if (tx->flags & IEEE80211_TXRXD_TXUNICAST)
+ return ieee80211_tx_h_unicast_ps_buf(tx);
+ else
+ return ieee80211_tx_h_multicast_ps_buf(tx);
+}
+
+
+
+
+static ieee80211_txrx_result
+ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_key *key;
+
+ if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
+ tx->key = NULL;
+ else if (tx->sta && (key = rcu_dereference(tx->sta->key)))
+ tx->key = key;
+ else if ((key = rcu_dereference(tx->sdata->default_key)))
+ tx->key = key;
+ else if (tx->sdata->drop_unencrypted &&
+ !(tx->sdata->eapol && ieee80211_is_eapol(tx->skb))) {
+ I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted);
+ return TXRX_DROP;
+ } else {
+ tx->key = NULL;
+ tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+ }
+
+ if (tx->key) {
+ tx->key->tx_rx_count++;
+ /* TODO: add threshold stuff again */
+ }
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
+ size_t hdrlen, per_fragm, num_fragm, payload_len, left;
+ struct sk_buff **frags, *first, *frag;
+ int i;
+ u16 seq;
+ u8 *pos;
+ int frag_threshold = tx->local->fragmentation_threshold;
+
+ if (!(tx->flags & IEEE80211_TXRXD_FRAGMENTED))
+ return TXRX_CONTINUE;
+
+ first = tx->skb;
+
+ hdrlen = ieee80211_get_hdrlen(tx->fc);
+ payload_len = first->len - hdrlen;
+ per_fragm = frag_threshold - hdrlen - FCS_LEN;
+ num_fragm = (payload_len + per_fragm - 1) / per_fragm;
+
+ frags = kzalloc(num_fragm * sizeof(struct sk_buff *), GFP_ATOMIC);
+ if (!frags)
+ goto fail;
+
+ hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREFRAGS);
+ seq = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ;
+ pos = first->data + hdrlen + per_fragm;
+ left = payload_len - per_fragm;
+ for (i = 0; i < num_fragm - 1; i++) {
+ struct ieee80211_hdr *fhdr;
+ size_t copylen;
+
+ if (left <= 0)
+ goto fail;
+
+ /* reserve enough extra head and tail room for possible
+ * encryption */
+ frag = frags[i] =
+ dev_alloc_skb(tx->local->tx_headroom +
+ frag_threshold +
+ IEEE80211_ENCRYPT_HEADROOM +
+ IEEE80211_ENCRYPT_TAILROOM);
+ if (!frag)
+ goto fail;
+ /* Make sure that all fragments use the same priority so
+ * that they end up using the same TX queue */
+ frag->priority = first->priority;
+ skb_reserve(frag, tx->local->tx_headroom +
+ IEEE80211_ENCRYPT_HEADROOM);
+ fhdr = (struct ieee80211_hdr *) skb_put(frag, hdrlen);
+ memcpy(fhdr, first->data, hdrlen);
+ if (i == num_fragm - 2)
+ fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS);
+ fhdr->seq_ctrl = cpu_to_le16(seq | ((i + 1) & IEEE80211_SCTL_FRAG));
+ copylen = left > per_fragm ? per_fragm : left;
+ memcpy(skb_put(frag, copylen), pos, copylen);
+
+ pos += copylen;
+ left -= copylen;
+ }
+ skb_trim(first, hdrlen + per_fragm);
+
+ tx->u.tx.num_extra_frag = num_fragm - 1;
+ tx->u.tx.extra_frag = frags;
+
+ return TXRX_CONTINUE;
+
+ fail:
+ printk(KERN_DEBUG "%s: failed to fragment frame\n", tx->dev->name);
+ if (frags) {
+ for (i = 0; i < num_fragm - 1; i++)
+ if (frags[i])
+ dev_kfree_skb(frags[i]);
+ kfree(frags);
+ }
+ I802_DEBUG_INC(tx->local->tx_handlers_drop_fragment);
+ return TXRX_DROP;
+}
+
+static ieee80211_txrx_result
+ieee80211_tx_h_encrypt(struct ieee80211_txrx_data *tx)
+{
+ if (!tx->key)
+ return TXRX_CONTINUE;
+
+ switch (tx->key->conf.alg) {
+ case ALG_WEP:
+ return ieee80211_crypto_wep_encrypt(tx);
+ case ALG_TKIP:
+ return ieee80211_crypto_tkip_encrypt(tx);
+ case ALG_CCMP:
+ return ieee80211_crypto_ccmp_encrypt(tx);
+ }
+
+ /* not reached */
+ WARN_ON(1);
+ return TXRX_DROP;
+}
+
+static ieee80211_txrx_result
+ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
+{
+ struct rate_control_extra extra;
+
+ if (likely(!tx->u.tx.rate)) {
+ memset(&extra, 0, sizeof(extra));
+ extra.mode = tx->u.tx.mode;
+ extra.ethertype = tx->ethertype;
+
+ tx->u.tx.rate = rate_control_get_rate(tx->local, tx->dev,
+ tx->skb, &extra);
+ if (unlikely(extra.probe != NULL)) {
+ tx->u.tx.control->flags |=
+ IEEE80211_TXCTL_RATE_CTRL_PROBE;
+ tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
+ tx->u.tx.control->alt_retry_rate = tx->u.tx.rate->val;
+ tx->u.tx.rate = extra.probe;
+ } else
+ tx->u.tx.control->alt_retry_rate = -1;
+
+ if (!tx->u.tx.rate)
+ return TXRX_DROP;
+ } else
+ tx->u.tx.control->alt_retry_rate = -1;
+
+ if (tx->u.tx.mode->mode == MODE_IEEE80211G &&
+ (tx->sdata->flags & IEEE80211_SDATA_USE_PROTECTION) &&
+ (tx->flags & IEEE80211_TXRXD_FRAGMENTED) && extra.nonerp) {
+ tx->u.tx.last_frag_rate = tx->u.tx.rate;
+ if (extra.probe)
+ tx->flags &= ~IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
+ else
+ tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
+ tx->u.tx.rate = extra.nonerp;
+ tx->u.tx.control->rate = extra.nonerp;
+ tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
+ } else {
+ tx->u.tx.last_frag_rate = tx->u.tx.rate;
+ tx->u.tx.control->rate = tx->u.tx.rate;
+ }
+ tx->u.tx.control->tx_rate = tx->u.tx.rate->val;
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
+ u16 fc = le16_to_cpu(hdr->frame_control);
+ u16 dur;
+ struct ieee80211_tx_control *control = tx->u.tx.control;
+ struct ieee80211_hw_mode *mode = tx->u.tx.mode;
+
+ if (!control->retry_limit) {
+ if (!is_multicast_ether_addr(hdr->addr1)) {
+ if (tx->skb->len + FCS_LEN > tx->local->rts_threshold
+ && tx->local->rts_threshold <
+ IEEE80211_MAX_RTS_THRESHOLD) {
+ control->flags |=
+ IEEE80211_TXCTL_USE_RTS_CTS;
+ control->flags |=
+ IEEE80211_TXCTL_LONG_RETRY_LIMIT;
+ control->retry_limit =
+ tx->local->long_retry_limit;
+ } else {
+ control->retry_limit =
+ tx->local->short_retry_limit;
+ }
+ } else {
+ control->retry_limit = 1;
+ }
+ }
+
+ if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
+ /* Do not use multiple retry rates when sending fragmented
+ * frames.
+ * TODO: The last fragment could still use multiple retry
+ * rates. */
+ control->alt_retry_rate = -1;
+ }
+
+ /* Use CTS protection for unicast frames sent using extended rates if
+ * there are associated non-ERP stations and RTS/CTS is not configured
+ * for the frame. */
+ if (mode->mode == MODE_IEEE80211G &&
+ (tx->u.tx.rate->flags & IEEE80211_RATE_ERP) &&
+ (tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
+ (tx->sdata->flags & IEEE80211_SDATA_USE_PROTECTION) &&
+ !(control->flags & IEEE80211_TXCTL_USE_RTS_CTS))
+ control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT;
+
+ /* Transmit data frames using short preambles if the driver supports
+ * short preambles at the selected rate and short preambles are
+ * available on the network at the current point in time. */
+ if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
+ (tx->u.tx.rate->flags & IEEE80211_RATE_PREAMBLE2) &&
+ (tx->sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
+ (!tx->sta || (tx->sta->flags & WLAN_STA_SHORT_PREAMBLE))) {
+ tx->u.tx.control->tx_rate = tx->u.tx.rate->val2;
+ }
+
+ /* Setup duration field for the first fragment of the frame. Duration
+ * for remaining fragments will be updated when they are being sent
+ * to low-level driver in ieee80211_tx(). */
+ dur = ieee80211_duration(tx, is_multicast_ether_addr(hdr->addr1),
+ (tx->flags & IEEE80211_TXRXD_FRAGMENTED) ?
+ tx->u.tx.extra_frag[0]->len : 0);
+ hdr->duration_id = cpu_to_le16(dur);
+
+ if ((control->flags & IEEE80211_TXCTL_USE_RTS_CTS) ||
+ (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) {
+ struct ieee80211_rate *rate;
+
+ /* Do not use multiple retry rates when using RTS/CTS */
+ control->alt_retry_rate = -1;
+
+ /* Use min(data rate, max base rate) as CTS/RTS rate */
+ rate = tx->u.tx.rate;
+ while (rate > mode->rates &&
+ !(rate->flags & IEEE80211_RATE_BASIC))
+ rate--;
+
+ control->rts_cts_rate = rate->val;
+ control->rts_rate = rate;
+ }
+
+ if (tx->sta) {
+ tx->sta->tx_packets++;
+ tx->sta->tx_fragments++;
+ tx->sta->tx_bytes += tx->skb->len;
+ if (tx->u.tx.extra_frag) {
+ int i;
+ tx->sta->tx_fragments += tx->u.tx.num_extra_frag;
+ for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+ tx->sta->tx_bytes +=
+ tx->u.tx.extra_frag[i]->len;
+ }
+ }
+ }
+
+ /*
+ * Tell hardware to not encrypt when we had sw crypto.
+ * Because we use the same flag to internally indicate that
+ * no (software) encryption should be done, we have to set it
+ * after all crypto handlers.
+ */
+ if (tx->key && !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
+ tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
+ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_local *local = tx->local;
+ struct ieee80211_hw_mode *mode = tx->u.tx.mode;
+ struct sk_buff *skb = tx->skb;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u32 load = 0, hdrtime;
+
+ /* TODO: this could be part of tx_status handling, so that the number
+ * of retries would be known; TX rate should in that case be stored
+ * somewhere with the packet */
+
+ /* Estimate total channel use caused by this frame */
+
+ /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
+ * 1 usec = 1/8 * (1080 / 10) = 13.5 */
+
+ if (mode->mode == MODE_IEEE80211A ||
+ (mode->mode == MODE_IEEE80211G &&
+ tx->u.tx.rate->flags & IEEE80211_RATE_ERP))
+ hdrtime = CHAN_UTIL_HDR_SHORT;
+ else
+ hdrtime = CHAN_UTIL_HDR_LONG;
+
+ load = hdrtime;
+ if (!is_multicast_ether_addr(hdr->addr1))
+ load += hdrtime;
+
+ if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_RTS_CTS)
+ load += 2 * hdrtime;
+ else if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
+ load += hdrtime;
+
+ load += skb->len * tx->u.tx.rate->rate_inv;
+
+ if (tx->u.tx.extra_frag) {
+ int i;
+ for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+ load += 2 * hdrtime;
+ load += tx->u.tx.extra_frag[i]->len *
+ tx->u.tx.rate->rate;
+ }
+ }
+
+ /* Divide channel_use by 8 to avoid wrapping around the counter */
+ load >>= CHAN_UTIL_SHIFT;
+ local->channel_use_raw += load;
+ if (tx->sta)
+ tx->sta->channel_use_raw += load;
+ tx->sdata->channel_use_raw += load;
+
+ return TXRX_CONTINUE;
+}
+
+/* TODO: implement register/unregister functions for adding TX/RX handlers
+ * into ordered list */
+
+ieee80211_tx_handler ieee80211_tx_handlers[] =
+{
+ ieee80211_tx_h_check_assoc,
+ ieee80211_tx_h_sequence,
+ ieee80211_tx_h_ps_buf,
+ ieee80211_tx_h_select_key,
+ ieee80211_tx_h_michael_mic_add,
+ ieee80211_tx_h_fragment,
+ ieee80211_tx_h_encrypt,
+ ieee80211_tx_h_rate_ctrl,
+ ieee80211_tx_h_misc,
+ ieee80211_tx_h_load_stats,
+ NULL
+};
+
+/* actual transmit path */
+
+/*
+ * deal with packet injection down monitor interface
+ * with Radiotap Header -- only called for monitor mode interface
+ */
+static ieee80211_txrx_result
+__ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
+ struct sk_buff *skb)
+{
+ /*
+ * this is the moment to interpret and discard the radiotap header that
+ * must be at the start of the packet injected in Monitor mode
+ *
+ * Need to take some care with endian-ness since radiotap
+ * args are little-endian
+ */
+
+ struct ieee80211_radiotap_iterator iterator;
+ struct ieee80211_radiotap_header *rthdr =
+ (struct ieee80211_radiotap_header *) skb->data;
+ struct ieee80211_hw_mode *mode = tx->local->hw.conf.mode;
+ int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len);
+ struct ieee80211_tx_control *control = tx->u.tx.control;
+
+ control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+ tx->flags |= IEEE80211_TXRXD_TX_INJECTED;
+ tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
+
+ /*
+ * for every radiotap entry that is present
+ * (ieee80211_radiotap_iterator_next returns -ENOENT when no more
+ * entries present, or -EINVAL on error)
+ */
+
+ while (!ret) {
+ int i, target_rate;
+
+ ret = ieee80211_radiotap_iterator_next(&iterator);
+
+ if (ret)
+ continue;
+
+ /* see if this argument is something we can use */
+ switch (iterator.this_arg_index) {
+ /*
+ * You must take care when dereferencing iterator.this_arg
+ * for multibyte types... the pointer is not aligned. Use
+ * get_unaligned((type *)iterator.this_arg) to dereference
+ * iterator.this_arg for type "type" safely on all arches.
+ */
+ case IEEE80211_RADIOTAP_RATE:
+ /*
+ * radiotap rate u8 is in 500kbps units eg, 0x02=1Mbps
+ * ieee80211 rate int is in 100kbps units eg, 0x0a=1Mbps
+ */
+ target_rate = (*iterator.this_arg) * 5;
+ for (i = 0; i < mode->num_rates; i++) {
+ struct ieee80211_rate *r = &mode->rates[i];
+
+ if (r->rate == target_rate) {
+ tx->u.tx.rate = r;
+ break;
+ }
+ }
+ break;
+
+ case IEEE80211_RADIOTAP_ANTENNA:
+ /*
+ * radiotap uses 0 for 1st ant, mac80211 is 1 for
+ * 1st ant
+ */
+ control->antenna_sel_tx = (*iterator.this_arg) + 1;
+ break;
+
+ case IEEE80211_RADIOTAP_DBM_TX_POWER:
+ control->power_level = *iterator.this_arg;
+ break;
+
+ case IEEE80211_RADIOTAP_FLAGS:
+ if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FCS) {
+ /*
+ * this indicates that the skb we have been
+ * handed has the 32-bit FCS CRC at the end...
+ * we should react to that by snipping it off
+ * because it will be recomputed and added
+ * on transmission
+ */
+ if (skb->len < (iterator.max_length + FCS_LEN))
+ return TXRX_DROP;
+
+ skb_trim(skb, skb->len - FCS_LEN);
+ }
+ if (*iterator.this_arg & IEEE80211_RADIOTAP_F_WEP)
+ control->flags &=
+ ~IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+ if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG)
+ tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+ break;
+
+ /*
+ * Please update the file
+ * Documentation/networking/mac80211-injection.txt
+ * when parsing new fields here.
+ */
+
+ default:
+ break;
+ }
+ }
+
+ if (ret != -ENOENT) /* ie, if we didn't simply run out of fields */
+ return TXRX_DROP;
+
+ /*
+ * remove the radiotap header
+ * iterator->max_length was sanity-checked against
+ * skb->len by iterator init
+ */
+ skb_pull(skb, iterator.max_length);
+
+ return TXRX_CONTINUE;
+}
+
+/*
+ * initialises @tx
+ */
+static ieee80211_txrx_result
+__ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
+ struct sk_buff *skb,
+ struct net_device *dev,
+ struct ieee80211_tx_control *control)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hdr *hdr;
+ struct ieee80211_sub_if_data *sdata;
+ ieee80211_txrx_result res = TXRX_CONTINUE;
+
+ int hdrlen;
+
+ memset(tx, 0, sizeof(*tx));
+ tx->skb = skb;
+ tx->dev = dev; /* use original interface */
+ tx->local = local;
+ tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ tx->u.tx.control = control;
+ /*
+ * Set this flag (used below to indicate "automatic fragmentation"),
+ * it will be cleared/left by radiotap as desired.
+ */
+ tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+
+ /* process and remove the injection radiotap header */
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (unlikely(sdata->type == IEEE80211_IF_TYPE_MNTR)) {
+ if (__ieee80211_parse_tx_radiotap(tx, skb) == TXRX_DROP)
+ return TXRX_DROP;
+
+ /*
+ * __ieee80211_parse_tx_radiotap has now removed
+ * the radiotap header that was present and pre-filled
+ * 'tx' with tx control information.
+ */
+ }
+
+ hdr = (struct ieee80211_hdr *) skb->data;
+
+ tx->sta = sta_info_get(local, hdr->addr1);
+ tx->fc = le16_to_cpu(hdr->frame_control);
+
+ if (is_multicast_ether_addr(hdr->addr1)) {
+ tx->flags &= ~IEEE80211_TXRXD_TXUNICAST;
+ control->flags |= IEEE80211_TXCTL_NO_ACK;
+ } else {
+ tx->flags |= IEEE80211_TXRXD_TXUNICAST;
+ control->flags &= ~IEEE80211_TXCTL_NO_ACK;
+ }
+
+ if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
+ if ((tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
+ skb->len + FCS_LEN > local->fragmentation_threshold &&
+ !local->ops->set_frag_threshold)
+ tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+ else
+ tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
+ }
+
+ if (!tx->sta)
+ control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
+ else if (tx->sta->clear_dst_mask) {
+ control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
+ tx->sta->clear_dst_mask = 0;
+ }
+
+ hdrlen = ieee80211_get_hdrlen(tx->fc);
+ if (skb->len > hdrlen + sizeof(rfc1042_header) + 2) {
+ u8 *pos = &skb->data[hdrlen + sizeof(rfc1042_header)];
+ tx->ethertype = (pos[0] << 8) | pos[1];
+ }
+ control->flags |= IEEE80211_TXCTL_FIRST_FRAGMENT;
+
+ return res;
+}
+
+/* Device in tx->dev has a reference added; use dev_put(tx->dev) when
+ * finished with it.
+ *
+ * NB: @tx is uninitialised when passed in here
+ */
+static int ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
+ struct sk_buff *skb,
+ struct net_device *mdev,
+ struct ieee80211_tx_control *control)
+{
+ struct ieee80211_tx_packet_data *pkt_data;
+ struct net_device *dev;
+
+ pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
+ dev = dev_get_by_index(pkt_data->ifindex);
+ if (unlikely(dev && !is_ieee80211_device(dev, mdev))) {
+ dev_put(dev);
+ dev = NULL;
+ }
+ if (unlikely(!dev))
+ return -ENODEV;
+ /* initialises tx with control */
+ __ieee80211_tx_prepare(tx, skb, dev, control);
+ return 0;
+}
+
+static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
+ struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_tx_control *control = tx->u.tx.control;
+ int ret, i;
+
+ if (!ieee80211_qdisc_installed(local->mdev) &&
+ __ieee80211_queue_stopped(local, 0)) {
+ netif_stop_queue(local->mdev);
+ return IEEE80211_TX_AGAIN;
+ }
+ if (skb) {
+ ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
+ "TX to low-level driver", skb);
+ ret = local->ops->tx(local_to_hw(local), skb, control);
+ if (ret)
+ return IEEE80211_TX_AGAIN;
+ local->mdev->trans_start = jiffies;
+ ieee80211_led_tx(local, 1);
+ }
+ if (tx->u.tx.extra_frag) {
+ control->flags &= ~(IEEE80211_TXCTL_USE_RTS_CTS |
+ IEEE80211_TXCTL_USE_CTS_PROTECT |
+ IEEE80211_TXCTL_CLEAR_DST_MASK |
+ IEEE80211_TXCTL_FIRST_FRAGMENT);
+ for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+ if (!tx->u.tx.extra_frag[i])
+ continue;
+ if (__ieee80211_queue_stopped(local, control->queue))
+ return IEEE80211_TX_FRAG_AGAIN;
+ if (i == tx->u.tx.num_extra_frag) {
+ control->tx_rate = tx->u.tx.last_frag_hwrate;
+ control->rate = tx->u.tx.last_frag_rate;
+ if (tx->flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG)
+ control->flags |=
+ IEEE80211_TXCTL_RATE_CTRL_PROBE;
+ else
+ control->flags &=
+ ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
+ }
+
+ ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
+ "TX to low-level driver",
+ tx->u.tx.extra_frag[i]);
+ ret = local->ops->tx(local_to_hw(local),
+ tx->u.tx.extra_frag[i],
+ control);
+ if (ret)
+ return IEEE80211_TX_FRAG_AGAIN;
+ local->mdev->trans_start = jiffies;
+ ieee80211_led_tx(local, 1);
+ tx->u.tx.extra_frag[i] = NULL;
+ }
+ kfree(tx->u.tx.extra_frag);
+ tx->u.tx.extra_frag = NULL;
+ }
+ return IEEE80211_TX_OK;
+}
+
+static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
+ struct ieee80211_tx_control *control)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
+ ieee80211_tx_handler *handler;
+ struct ieee80211_txrx_data tx;
+ ieee80211_txrx_result res = TXRX_DROP, res_prepare;
+ int ret, i;
+
+ WARN_ON(__ieee80211_queue_pending(local, control->queue));
+
+ if (unlikely(skb->len < 10)) {
+ dev_kfree_skb(skb);
+ return 0;
+ }
+
+ /* initialises tx */
+ res_prepare = __ieee80211_tx_prepare(&tx, skb, dev, control);
+
+ if (res_prepare == TXRX_DROP) {
+ dev_kfree_skb(skb);
+ return 0;
+ }
+
+ /*
+ * key references are protected using RCU and this requires that
+ * we are in a read-site RCU section during receive processing
+ */
+ rcu_read_lock();
+
+ sta = tx.sta;
+ tx.u.tx.mode = local->hw.conf.mode;
+
+ for (handler = local->tx_handlers; *handler != NULL;
+ handler++) {
+ res = (*handler)(&tx);
+ if (res != TXRX_CONTINUE)
+ break;
+ }
+
+ skb = tx.skb; /* handlers are allowed to change skb */
+
+ if (sta)
+ sta_info_put(sta);
+
+ if (unlikely(res == TXRX_DROP)) {
+ I802_DEBUG_INC(local->tx_handlers_drop);
+ goto drop;
+ }
+
+ if (unlikely(res == TXRX_QUEUED)) {
+ I802_DEBUG_INC(local->tx_handlers_queued);
+ rcu_read_unlock();
+ return 0;
+ }
+
+ if (tx.u.tx.extra_frag) {
+ for (i = 0; i < tx.u.tx.num_extra_frag; i++) {
+ int next_len, dur;
+ struct ieee80211_hdr *hdr =
+ (struct ieee80211_hdr *)
+ tx.u.tx.extra_frag[i]->data;
+
+ if (i + 1 < tx.u.tx.num_extra_frag) {
+ next_len = tx.u.tx.extra_frag[i + 1]->len;
+ } else {
+ next_len = 0;
+ tx.u.tx.rate = tx.u.tx.last_frag_rate;
+ tx.u.tx.last_frag_hwrate = tx.u.tx.rate->val;
+ }
+ dur = ieee80211_duration(&tx, 0, next_len);
+ hdr->duration_id = cpu_to_le16(dur);
+ }
+ }
+
+retry:
+ ret = __ieee80211_tx(local, skb, &tx);
+ if (ret) {
+ struct ieee80211_tx_stored_packet *store =
+ &local->pending_packet[control->queue];
+
+ if (ret == IEEE80211_TX_FRAG_AGAIN)
+ skb = NULL;
+ set_bit(IEEE80211_LINK_STATE_PENDING,
+ &local->state[control->queue]);
+ smp_mb();
+ /* When the driver gets out of buffers during sending of
+ * fragments and calls ieee80211_stop_queue, there is
+ * a small window between IEEE80211_LINK_STATE_XOFF and
+ * IEEE80211_LINK_STATE_PENDING flags are set. If a buffer
+ * gets available in that window (i.e. driver calls
+ * ieee80211_wake_queue), we would end up with ieee80211_tx
+ * called with IEEE80211_LINK_STATE_PENDING. Prevent this by
+ * continuing transmitting here when that situation is
+ * possible to have happened. */
+ if (!__ieee80211_queue_stopped(local, control->queue)) {
+ clear_bit(IEEE80211_LINK_STATE_PENDING,
+ &local->state[control->queue]);
+ goto retry;
+ }
+ memcpy(&store->control, control,
+ sizeof(struct ieee80211_tx_control));
+ store->skb = skb;
+ store->extra_frag = tx.u.tx.extra_frag;
+ store->num_extra_frag = tx.u.tx.num_extra_frag;
+ store->last_frag_hwrate = tx.u.tx.last_frag_hwrate;
+ store->last_frag_rate = tx.u.tx.last_frag_rate;
+ store->last_frag_rate_ctrl_probe =
+ !!(tx.flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG);
+ }
+ rcu_read_unlock();
+ return 0;
+
+ drop:
+ if (skb)
+ dev_kfree_skb(skb);
+ for (i = 0; i < tx.u.tx.num_extra_frag; i++)
+ if (tx.u.tx.extra_frag[i])
+ dev_kfree_skb(tx.u.tx.extra_frag[i]);
+ kfree(tx.u.tx.extra_frag);
+ rcu_read_unlock();
+ return 0;
+}
+
+/* device xmit handlers */
+
+int ieee80211_master_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct ieee80211_tx_control control;
+ struct ieee80211_tx_packet_data *pkt_data;
+ struct net_device *odev = NULL;
+ struct ieee80211_sub_if_data *osdata;
+ int headroom;
+ int ret;
+
+ /*
+ * copy control out of the skb so other people can use skb->cb
+ */
+ pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
+ memset(&control, 0, sizeof(struct ieee80211_tx_control));
+
+ if (pkt_data->ifindex)
+ odev = dev_get_by_index(pkt_data->ifindex);
+ if (unlikely(odev && !is_ieee80211_device(odev, dev))) {
+ dev_put(odev);
+ odev = NULL;
+ }
+ if (unlikely(!odev)) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ printk(KERN_DEBUG "%s: Discarded packet with nonexistent "
+ "originating device\n", dev->name);
+#endif
+ dev_kfree_skb(skb);
+ return 0;
+ }
+ osdata = IEEE80211_DEV_TO_SUB_IF(odev);
+
+ headroom = osdata->local->tx_headroom + IEEE80211_ENCRYPT_HEADROOM;
+ if (skb_headroom(skb) < headroom) {
+ if (pskb_expand_head(skb, headroom, 0, GFP_ATOMIC)) {
+ dev_kfree_skb(skb);
+ dev_put(odev);
+ return 0;
+ }
+ }
+
+ control.ifindex = odev->ifindex;
+ control.type = osdata->type;
+ if (pkt_data->flags & IEEE80211_TXPD_REQ_TX_STATUS)
+ control.flags |= IEEE80211_TXCTL_REQ_TX_STATUS;
+ if (pkt_data->flags & IEEE80211_TXPD_DO_NOT_ENCRYPT)
+ control.flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+ if (pkt_data->flags & IEEE80211_TXPD_REQUEUE)
+ control.flags |= IEEE80211_TXCTL_REQUEUE;
+ control.queue = pkt_data->queue;
+
+ ret = ieee80211_tx(odev, skb, &control);
+ dev_put(odev);
+
+ return ret;
+}
+
+int ieee80211_monitor_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_tx_packet_data *pkt_data;
+ struct ieee80211_radiotap_header *prthdr =
+ (struct ieee80211_radiotap_header *)skb->data;
+ u16 len_rthdr;
+
+ /* check for not even having the fixed radiotap header part */
+ if (unlikely(skb->len < sizeof(struct ieee80211_radiotap_header)))
+ goto fail; /* too short to be possibly valid */
+
+ /* is it a header version we can trust to find length from? */
+ if (unlikely(prthdr->it_version))
+ goto fail; /* only version 0 is supported */
+
+ /* then there must be a radiotap header with a length we can use */
+ len_rthdr = ieee80211_get_radiotap_len(skb->data);
+
+ /* does the skb contain enough to deliver on the alleged length? */
+ if (unlikely(skb->len < len_rthdr))
+ goto fail; /* skb too short for claimed rt header extent */
+
+ skb->dev = local->mdev;
+
+ pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
+ memset(pkt_data, 0, sizeof(*pkt_data));
+ /* needed because we set skb device to master */
+ pkt_data->ifindex = dev->ifindex;
+
+ pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
+
+ /*
+ * fix up the pointers accounting for the radiotap
+ * header still being in there. We are being given
+ * a precooked IEEE80211 header so no need for
+ * normal processing
+ */
+ skb_set_mac_header(skb, len_rthdr);
+ /*
+ * these are just fixed to the end of the rt area since we
+ * don't have any better information and at this point, nobody cares
+ */
+ skb_set_network_header(skb, len_rthdr);
+ skb_set_transport_header(skb, len_rthdr);
+
+ /* pass the radiotap header up to the next stage intact */
+ dev_queue_xmit(skb);
+ return NETDEV_TX_OK;
+
+fail:
+ dev_kfree_skb(skb);
+ return NETDEV_TX_OK; /* meaning, we dealt with the skb */
+}
+
+/**
+ * ieee80211_subif_start_xmit - netif start_xmit function for Ethernet-type
+ * subinterfaces (wlan#, WDS, and VLAN interfaces)
+ * @skb: packet to be sent
+ * @dev: incoming interface
+ *
+ * Returns: 0 on success (and frees skb in this case) or 1 on failure (skb will
+ * not be freed, and caller is responsible for either retrying later or freeing
+ * skb).
+ *
+ * This function takes in an Ethernet header and encapsulates it with suitable
+ * IEEE 802.11 header based on which interface the packet is coming in. The
+ * encapsulated packet will then be passed to master interface, wlan#.11, for
+ * transmission (through low-level driver).
+ */
+int ieee80211_subif_start_xmit(struct sk_buff *skb,
+ struct net_device *dev)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_tx_packet_data *pkt_data;
+ struct ieee80211_sub_if_data *sdata;
+ int ret = 1, head_need;
+ u16 ethertype, hdrlen, fc;
+ struct ieee80211_hdr hdr;
+ const u8 *encaps_data;
+ int encaps_len, skip_header_bytes;
+ int nh_pos, h_pos;
+ struct sta_info *sta;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (unlikely(skb->len < ETH_HLEN)) {
+ printk(KERN_DEBUG "%s: short skb (len=%d)\n",
+ dev->name, skb->len);
+ ret = 0;
+ goto fail;
+ }
+
+ nh_pos = skb_network_header(skb) - skb->data;
+ h_pos = skb_transport_header(skb) - skb->data;
+
+ /* convert Ethernet header to proper 802.11 header (based on
+ * operation mode) */
+ ethertype = (skb->data[12] << 8) | skb->data[13];
+ /* TODO: handling for 802.1x authorized/unauthorized port */
+ fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA;
+
+ switch (sdata->type) {
+ case IEEE80211_IF_TYPE_AP:
+ case IEEE80211_IF_TYPE_VLAN:
+ fc |= IEEE80211_FCTL_FROMDS;
+ /* DA BSSID SA */
+ memcpy(hdr.addr1, skb->data, ETH_ALEN);
+ memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
+ memcpy(hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN);
+ hdrlen = 24;
+ break;
+ case IEEE80211_IF_TYPE_WDS:
+ fc |= IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS;
+ /* RA TA DA SA */
+ memcpy(hdr.addr1, sdata->u.wds.remote_addr, ETH_ALEN);
+ memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
+ memcpy(hdr.addr3, skb->data, ETH_ALEN);
+ memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
+ hdrlen = 30;
+ break;
+ case IEEE80211_IF_TYPE_STA:
+ fc |= IEEE80211_FCTL_TODS;
+ /* BSSID SA DA */
+ memcpy(hdr.addr1, sdata->u.sta.bssid, ETH_ALEN);
+ memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
+ memcpy(hdr.addr3, skb->data, ETH_ALEN);
+ hdrlen = 24;
+ break;
+ case IEEE80211_IF_TYPE_IBSS:
+ /* DA SA BSSID */
+ memcpy(hdr.addr1, skb->data, ETH_ALEN);
+ memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
+ memcpy(hdr.addr3, sdata->u.sta.bssid, ETH_ALEN);
+ hdrlen = 24;
+ break;
+ default:
+ ret = 0;
+ goto fail;
+ }
+
+ /* receiver is QoS enabled, use a QoS type frame */
+ sta = sta_info_get(local, hdr.addr1);
+ if (sta) {
+ if (sta->flags & WLAN_STA_WME) {
+ fc |= IEEE80211_STYPE_QOS_DATA;
+ hdrlen += 2;
+ }
+ sta_info_put(sta);
+ }
+
+ hdr.frame_control = cpu_to_le16(fc);
+ hdr.duration_id = 0;
+ hdr.seq_ctrl = 0;
+
+ skip_header_bytes = ETH_HLEN;
+ if (ethertype == ETH_P_AARP || ethertype == ETH_P_IPX) {
+ encaps_data = bridge_tunnel_header;
+ encaps_len = sizeof(bridge_tunnel_header);
+ skip_header_bytes -= 2;
+ } else if (ethertype >= 0x600) {
+ encaps_data = rfc1042_header;
+ encaps_len = sizeof(rfc1042_header);
+ skip_header_bytes -= 2;
+ } else {
+ encaps_data = NULL;
+ encaps_len = 0;
+ }
+
+ skb_pull(skb, skip_header_bytes);
+ nh_pos -= skip_header_bytes;
+ h_pos -= skip_header_bytes;
+
+ /* TODO: implement support for fragments so that there is no need to
+ * reallocate and copy payload; it might be enough to support one
+ * extra fragment that would be copied in the beginning of the frame
+ * data.. anyway, it would be nice to include this into skb structure
+ * somehow
+ *
+ * There are few options for this:
+ * use skb->cb as an extra space for 802.11 header
+ * allocate new buffer if not enough headroom
+ * make sure that there is enough headroom in every skb by increasing
+ * build in headroom in __dev_alloc_skb() (linux/skbuff.h) and
+ * alloc_skb() (net/core/skbuff.c)
+ */
+ head_need = hdrlen + encaps_len + local->tx_headroom;
+ head_need -= skb_headroom(skb);
+
+ /* We are going to modify skb data, so make a copy of it if happens to
+ * be cloned. This could happen, e.g., with Linux bridge code passing
+ * us broadcast frames. */
+
+ if (head_need > 0 || skb_cloned(skb)) {
+#if 0
+ printk(KERN_DEBUG "%s: need to reallocate buffer for %d bytes "
+ "of headroom\n", dev->name, head_need);
+#endif
+
+ if (skb_cloned(skb))
+ I802_DEBUG_INC(local->tx_expand_skb_head_cloned);
+ else
+ I802_DEBUG_INC(local->tx_expand_skb_head);
+ /* Since we have to reallocate the buffer, make sure that there
+ * is enough room for possible WEP IV/ICV and TKIP (8 bytes
+ * before payload and 12 after). */
+ if (pskb_expand_head(skb, (head_need > 0 ? head_need + 8 : 8),
+ 12, GFP_ATOMIC)) {
+ printk(KERN_DEBUG "%s: failed to reallocate TX buffer"
+ "\n", dev->name);
+ goto fail;
+ }
+ }
+
+ if (encaps_data) {
+ memcpy(skb_push(skb, encaps_len), encaps_data, encaps_len);
+ nh_pos += encaps_len;
+ h_pos += encaps_len;
+ }
+
+ if (fc & IEEE80211_STYPE_QOS_DATA) {
+ __le16 *qos_control;
+
+ qos_control = (__le16*) skb_push(skb, 2);
+ memcpy(skb_push(skb, hdrlen - 2), &hdr, hdrlen - 2);
+ /*
+ * Maybe we could actually set some fields here, for now just
+ * initialise to zero to indicate no special operation.
+ */
+ *qos_control = 0;
+ } else
+ memcpy(skb_push(skb, hdrlen), &hdr, hdrlen);
+
+ nh_pos += hdrlen;
+ h_pos += hdrlen;
+
+ pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
+ memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
+ pkt_data->ifindex = dev->ifindex;
+
+ skb->dev = local->mdev;
+ dev->stats.tx_packets++;
+ dev->stats.tx_bytes += skb->len;
+
+ /* Update skb pointers to various headers since this modified frame
+ * is going to go through Linux networking code that may potentially
+ * need things like pointer to IP header. */
+ skb_set_mac_header(skb, 0);
+ skb_set_network_header(skb, nh_pos);
+ skb_set_transport_header(skb, h_pos);
+
+ dev->trans_start = jiffies;
+ dev_queue_xmit(skb);
+
+ return 0;
+
+ fail:
+ if (!ret)
+ dev_kfree_skb(skb);
+
+ return ret;
+}
+
+/*
+ * This is the transmit routine for the 802.11 type interfaces
+ * called by upper layers of the linux networking
+ * stack when it has a frame to transmit
+ */
+int ieee80211_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_tx_packet_data *pkt_data;
+ struct ieee80211_hdr *hdr;
+ u16 fc;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ if (skb->len < 10) {
+ dev_kfree_skb(skb);
+ return 0;
+ }
+
+ if (skb_headroom(skb) < sdata->local->tx_headroom) {
+ if (pskb_expand_head(skb, sdata->local->tx_headroom,
+ 0, GFP_ATOMIC)) {
+ dev_kfree_skb(skb);
+ return 0;
+ }
+ }
+
+ hdr = (struct ieee80211_hdr *) skb->data;
+ fc = le16_to_cpu(hdr->frame_control);
+
+ pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
+ memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
+ pkt_data->ifindex = sdata->dev->ifindex;
+
+ skb->priority = 20; /* use hardcoded priority for mgmt TX queue */
+ skb->dev = sdata->local->mdev;
+
+ /*
+ * We're using the protocol field of the the frame control header
+ * to request TX callback for hostapd. BIT(1) is checked.
+ */
+ if ((fc & BIT(1)) == BIT(1)) {
+ pkt_data->flags |= IEEE80211_TXPD_REQ_TX_STATUS;
+ fc &= ~BIT(1);
+ hdr->frame_control = cpu_to_le16(fc);
+ }
+
+ if (!(fc & IEEE80211_FCTL_PROTECTED))
+ pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
+
+ dev->stats.tx_packets++;
+ dev->stats.tx_bytes += skb->len;
+
+ dev_queue_xmit(skb);
+
+ return 0;
+}
+
+/* helper functions for pending packets for when queues are stopped */
+
+void ieee80211_clear_tx_pending(struct ieee80211_local *local)
+{
+ int i, j;
+ struct ieee80211_tx_stored_packet *store;
+
+ for (i = 0; i < local->hw.queues; i++) {
+ if (!__ieee80211_queue_pending(local, i))
+ continue;
+ store = &local->pending_packet[i];
+ kfree_skb(store->skb);
+ for (j = 0; j < store->num_extra_frag; j++)
+ kfree_skb(store->extra_frag[j]);
+ kfree(store->extra_frag);
+ clear_bit(IEEE80211_LINK_STATE_PENDING, &local->state[i]);
+ }
+}
+
+void ieee80211_tx_pending(unsigned long data)
+{
+ struct ieee80211_local *local = (struct ieee80211_local *)data;
+ struct net_device *dev = local->mdev;
+ struct ieee80211_tx_stored_packet *store;
+ struct ieee80211_txrx_data tx;
+ int i, ret, reschedule = 0;
+
+ netif_tx_lock_bh(dev);
+ for (i = 0; i < local->hw.queues; i++) {
+ if (__ieee80211_queue_stopped(local, i))
+ continue;
+ if (!__ieee80211_queue_pending(local, i)) {
+ reschedule = 1;
+ continue;
+ }
+ store = &local->pending_packet[i];
+ tx.u.tx.control = &store->control;
+ tx.u.tx.extra_frag = store->extra_frag;
+ tx.u.tx.num_extra_frag = store->num_extra_frag;
+ tx.u.tx.last_frag_hwrate = store->last_frag_hwrate;
+ tx.u.tx.last_frag_rate = store->last_frag_rate;
+ tx.flags = 0;
+ if (store->last_frag_rate_ctrl_probe)
+ tx.flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
+ ret = __ieee80211_tx(local, store->skb, &tx);
+ if (ret) {
+ if (ret == IEEE80211_TX_FRAG_AGAIN)
+ store->skb = NULL;
+ } else {
+ clear_bit(IEEE80211_LINK_STATE_PENDING,
+ &local->state[i]);
+ reschedule = 1;
+ }
+ }
+ netif_tx_unlock_bh(dev);
+ if (reschedule) {
+ if (!ieee80211_qdisc_installed(dev)) {
+ if (!__ieee80211_queue_stopped(local, 0))
+ netif_wake_queue(dev);
+ } else
+ netif_schedule(dev);
+ }
+}
+
+/* functions for drivers to get certain frames */
+
+static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
+ struct ieee80211_if_ap *bss,
+ struct sk_buff *skb)
+{
+ u8 *pos, *tim;
+ int aid0 = 0;
+ int i, have_bits = 0, n1, n2;
+
+ /* Generate bitmap for TIM only if there are any STAs in power save
+ * mode. */
+ read_lock_bh(&local->sta_lock);
+ if (atomic_read(&bss->num_sta_ps) > 0)
+ /* in the hope that this is faster than
+ * checking byte-for-byte */
+ have_bits = !bitmap_empty((unsigned long*)bss->tim,
+ IEEE80211_MAX_AID+1);
+
+ if (bss->dtim_count == 0)
+ bss->dtim_count = bss->dtim_period - 1;
+ else
+ bss->dtim_count--;
+
+ tim = pos = (u8 *) skb_put(skb, 6);
+ *pos++ = WLAN_EID_TIM;
+ *pos++ = 4;
+ *pos++ = bss->dtim_count;
+ *pos++ = bss->dtim_period;
+
+ if (bss->dtim_count == 0 && !skb_queue_empty(&bss->ps_bc_buf))
+ aid0 = 1;
+
+ if (have_bits) {
+ /* Find largest even number N1 so that bits numbered 1 through
+ * (N1 x 8) - 1 in the bitmap are 0 and number N2 so that bits
+ * (N2 + 1) x 8 through 2007 are 0. */
+ n1 = 0;
+ for (i = 0; i < IEEE80211_MAX_TIM_LEN; i++) {
+ if (bss->tim[i]) {
+ n1 = i & 0xfe;
+ break;
+ }
+ }
+ n2 = n1;
+ for (i = IEEE80211_MAX_TIM_LEN - 1; i >= n1; i--) {
+ if (bss->tim[i]) {
+ n2 = i;
+ break;
+ }
+ }
+
+ /* Bitmap control */
+ *pos++ = n1 | aid0;
+ /* Part Virt Bitmap */
+ memcpy(pos, bss->tim + n1, n2 - n1 + 1);
+
+ tim[1] = n2 - n1 + 4;
+ skb_put(skb, n2 - n1);
+ } else {
+ *pos++ = aid0; /* Bitmap control */
+ *pos++ = 0; /* Part Virt Bitmap */
+ }
+ read_unlock_bh(&local->sta_lock);
+}
+
+struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, int if_id,
+ struct ieee80211_tx_control *control)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct sk_buff *skb;
+ struct net_device *bdev;
+ struct ieee80211_sub_if_data *sdata = NULL;
+ struct ieee80211_if_ap *ap = NULL;
+ struct ieee80211_rate *rate;
+ struct rate_control_extra extra;
+ u8 *b_head, *b_tail;
+ int bh_len, bt_len;
+
+ bdev = dev_get_by_index(if_id);
+ if (bdev) {
+ sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
+ ap = &sdata->u.ap;
+ dev_put(bdev);
+ }
+
+ if (!ap || sdata->type != IEEE80211_IF_TYPE_AP ||
+ !ap->beacon_head) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ if (net_ratelimit())
+ printk(KERN_DEBUG "no beacon data avail for idx=%d "
+ "(%s)\n", if_id, bdev ? bdev->name : "N/A");
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+ return NULL;
+ }
+
+ /* Assume we are generating the normal beacon locally */
+ b_head = ap->beacon_head;
+ b_tail = ap->beacon_tail;
+ bh_len = ap->beacon_head_len;
+ bt_len = ap->beacon_tail_len;
+
+ skb = dev_alloc_skb(local->tx_headroom +
+ bh_len + bt_len + 256 /* maximum TIM len */);
+ if (!skb)
+ return NULL;
+
+ skb_reserve(skb, local->tx_headroom);
+ memcpy(skb_put(skb, bh_len), b_head, bh_len);
+
+ ieee80211_include_sequence(sdata, (struct ieee80211_hdr *)skb->data);
+
+ ieee80211_beacon_add_tim(local, ap, skb);
+
+ if (b_tail) {
+ memcpy(skb_put(skb, bt_len), b_tail, bt_len);
+ }
+
+ if (control) {
+ memset(&extra, 0, sizeof(extra));
+ extra.mode = local->oper_hw_mode;
+
+ rate = rate_control_get_rate(local, local->mdev, skb, &extra);
+ if (!rate) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s: ieee80211_beacon_get: no rate "
+ "found\n", wiphy_name(local->hw.wiphy));
+ }
+ dev_kfree_skb(skb);
+ return NULL;
+ }
+
+ control->tx_rate =
+ ((sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
+ (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
+ rate->val2 : rate->val;
+ control->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
+ control->power_level = local->hw.conf.power_level;
+ control->flags |= IEEE80211_TXCTL_NO_ACK;
+ control->retry_limit = 1;
+ control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
+ }
+
+ ap->num_beacons++;
+ return skb;
+}
+EXPORT_SYMBOL(ieee80211_beacon_get);
+
+void ieee80211_rts_get(struct ieee80211_hw *hw, int if_id,
+ const void *frame, size_t frame_len,
+ const struct ieee80211_tx_control *frame_txctl,
+ struct ieee80211_rts *rts)
+{
+ const struct ieee80211_hdr *hdr = frame;
+ u16 fctl;
+
+ fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS;
+ rts->frame_control = cpu_to_le16(fctl);
+ rts->duration = ieee80211_rts_duration(hw, if_id, frame_len, frame_txctl);
+ memcpy(rts->ra, hdr->addr1, sizeof(rts->ra));
+ memcpy(rts->ta, hdr->addr2, sizeof(rts->ta));
+}
+EXPORT_SYMBOL(ieee80211_rts_get);
+
+void ieee80211_ctstoself_get(struct ieee80211_hw *hw, int if_id,
+ const void *frame, size_t frame_len,
+ const struct ieee80211_tx_control *frame_txctl,
+ struct ieee80211_cts *cts)
+{
+ const struct ieee80211_hdr *hdr = frame;
+ u16 fctl;
+
+ fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS;
+ cts->frame_control = cpu_to_le16(fctl);
+ cts->duration = ieee80211_ctstoself_duration(hw, if_id, frame_len, frame_txctl);
+ memcpy(cts->ra, hdr->addr1, sizeof(cts->ra));
+}
+EXPORT_SYMBOL(ieee80211_ctstoself_get);
+
+struct sk_buff *
+ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id,
+ struct ieee80211_tx_control *control)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct sk_buff *skb;
+ struct sta_info *sta;
+ ieee80211_tx_handler *handler;
+ struct ieee80211_txrx_data tx;
+ ieee80211_txrx_result res = TXRX_DROP;
+ struct net_device *bdev;
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_if_ap *bss = NULL;
+
+ bdev = dev_get_by_index(if_id);
+ if (bdev) {
+ sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
+ bss = &sdata->u.ap;
+ dev_put(bdev);
+ }
+ if (!bss || sdata->type != IEEE80211_IF_TYPE_AP || !bss->beacon_head)
+ return NULL;
+
+ if (bss->dtim_count != 0)
+ return NULL; /* send buffered bc/mc only after DTIM beacon */
+ memset(control, 0, sizeof(*control));
+ while (1) {
+ skb = skb_dequeue(&bss->ps_bc_buf);
+ if (!skb)
+ return NULL;
+ local->total_ps_buffered--;
+
+ if (!skb_queue_empty(&bss->ps_bc_buf) && skb->len >= 2) {
+ struct ieee80211_hdr *hdr =
+ (struct ieee80211_hdr *) skb->data;
+ /* more buffered multicast/broadcast frames ==> set
+ * MoreData flag in IEEE 802.11 header to inform PS
+ * STAs */
+ hdr->frame_control |=
+ cpu_to_le16(IEEE80211_FCTL_MOREDATA);
+ }
+
+ if (!ieee80211_tx_prepare(&tx, skb, local->mdev, control))
+ break;
+ dev_kfree_skb_any(skb);
+ }
+ sta = tx.sta;
+ tx.flags |= IEEE80211_TXRXD_TXPS_BUFFERED;
+ tx.u.tx.mode = local->hw.conf.mode;
+
+ for (handler = local->tx_handlers; *handler != NULL; handler++) {
+ res = (*handler)(&tx);
+ if (res == TXRX_DROP || res == TXRX_QUEUED)
+ break;
+ }
+ dev_put(tx.dev);
+ skb = tx.skb; /* handlers are allowed to change skb */
+
+ if (res == TXRX_DROP) {
+ I802_DEBUG_INC(local->tx_handlers_drop);
+ dev_kfree_skb(skb);
+ skb = NULL;
+ } else if (res == TXRX_QUEUED) {
+ I802_DEBUG_INC(local->tx_handlers_queued);
+ skb = NULL;
+ }
+
+ if (sta)
+ sta_info_put(sta);
+
+ return skb;
+}
+EXPORT_SYMBOL(ieee80211_get_buffered_bc);
--- /dev/null
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005-2006, Devicescape Software, Inc.
+ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * utilities for mac80211
+ */
+
+#include <net/mac80211.h>
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/skbuff.h>
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+#include <linux/wireless.h>
+#include <linux/bitmap.h>
+#include <net/cfg80211.h>
+
+#include "ieee80211_i.h"
+#include "ieee80211_rate.h"
+#include "wme.h"
+
+/* privid for wiphys to determine whether they belong to us or not */
+void *mac80211_wiphy_privid = &mac80211_wiphy_privid;
+
+/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
+/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
+const unsigned char rfc1042_header[] =
+ { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
+
+/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
+const unsigned char bridge_tunnel_header[] =
+ { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
+
+/* No encapsulation header if EtherType < 0x600 (=length) */
+static const unsigned char eapol_header[] =
+ { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00, 0x88, 0x8e };
+
+
+static int rate_list_match(const int *rate_list, int rate)
+{
+ int i;
+
+ if (!rate_list)
+ return 0;
+
+ for (i = 0; rate_list[i] >= 0; i++)
+ if (rate_list[i] == rate)
+ return 1;
+
+ return 0;
+}
+
+void ieee80211_prepare_rates(struct ieee80211_local *local,
+ struct ieee80211_hw_mode *mode)
+{
+ int i;
+
+ for (i = 0; i < mode->num_rates; i++) {
+ struct ieee80211_rate *rate = &mode->rates[i];
+
+ rate->flags &= ~(IEEE80211_RATE_SUPPORTED |
+ IEEE80211_RATE_BASIC);
+
+ if (local->supp_rates[mode->mode]) {
+ if (!rate_list_match(local->supp_rates[mode->mode],
+ rate->rate))
+ continue;
+ }
+
+ rate->flags |= IEEE80211_RATE_SUPPORTED;
+
+ /* Use configured basic rate set if it is available. If not,
+ * use defaults that are sane for most cases. */
+ if (local->basic_rates[mode->mode]) {
+ if (rate_list_match(local->basic_rates[mode->mode],
+ rate->rate))
+ rate->flags |= IEEE80211_RATE_BASIC;
+ } else switch (mode->mode) {
+ case MODE_IEEE80211A:
+ if (rate->rate == 60 || rate->rate == 120 ||
+ rate->rate == 240)
+ rate->flags |= IEEE80211_RATE_BASIC;
+ break;
+ case MODE_IEEE80211B:
+ if (rate->rate == 10 || rate->rate == 20)
+ rate->flags |= IEEE80211_RATE_BASIC;
+ break;
+ case MODE_IEEE80211G:
+ if (rate->rate == 10 || rate->rate == 20 ||
+ rate->rate == 55 || rate->rate == 110)
+ rate->flags |= IEEE80211_RATE_BASIC;
+ break;
+ case NUM_IEEE80211_MODES:
+ /* not useful */
+ break;
+ }
+
+ /* Set ERP and MANDATORY flags based on phymode */
+ switch (mode->mode) {
+ case MODE_IEEE80211A:
+ if (rate->rate == 60 || rate->rate == 120 ||
+ rate->rate == 240)
+ rate->flags |= IEEE80211_RATE_MANDATORY;
+ break;
+ case MODE_IEEE80211B:
+ if (rate->rate == 10)
+ rate->flags |= IEEE80211_RATE_MANDATORY;
+ break;
+ case MODE_IEEE80211G:
+ if (rate->rate == 10 || rate->rate == 20 ||
+ rate->rate == 55 || rate->rate == 110 ||
+ rate->rate == 60 || rate->rate == 120 ||
+ rate->rate == 240)
+ rate->flags |= IEEE80211_RATE_MANDATORY;
+ break;
+ case NUM_IEEE80211_MODES:
+ /* not useful */
+ break;
+ }
+ if (ieee80211_is_erp_rate(mode->mode, rate->rate))
+ rate->flags |= IEEE80211_RATE_ERP;
+ }
+}
+
+u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len)
+{
+ u16 fc;
+
+ if (len < 24)
+ return NULL;
+
+ fc = le16_to_cpu(hdr->frame_control);
+
+ switch (fc & IEEE80211_FCTL_FTYPE) {
+ case IEEE80211_FTYPE_DATA:
+ switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
+ case IEEE80211_FCTL_TODS:
+ return hdr->addr1;
+ case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
+ return NULL;
+ case IEEE80211_FCTL_FROMDS:
+ return hdr->addr2;
+ case 0:
+ return hdr->addr3;
+ }
+ break;
+ case IEEE80211_FTYPE_MGMT:
+ return hdr->addr3;
+ case IEEE80211_FTYPE_CTL:
+ if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)
+ return hdr->addr1;
+ else
+ return NULL;
+ }
+
+ return NULL;
+}
+
+int ieee80211_get_hdrlen(u16 fc)
+{
+ int hdrlen = 24;
+
+ switch (fc & IEEE80211_FCTL_FTYPE) {
+ case IEEE80211_FTYPE_DATA:
+ if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
+ hdrlen = 30; /* Addr4 */
+ /*
+ * The QoS Control field is two bytes and its presence is
+ * indicated by the IEEE80211_STYPE_QOS_DATA bit. Add 2 to
+ * hdrlen if that bit is set.
+ * This works by masking out the bit and shifting it to
+ * bit position 1 so the result has the value 0 or 2.
+ */
+ hdrlen += (fc & IEEE80211_STYPE_QOS_DATA)
+ >> (ilog2(IEEE80211_STYPE_QOS_DATA)-1);
+ break;
+ case IEEE80211_FTYPE_CTL:
+ /*
+ * ACK and CTS are 10 bytes, all others 16. To see how
+ * to get this condition consider
+ * subtype mask: 0b0000000011110000 (0x00F0)
+ * ACK subtype: 0b0000000011010000 (0x00D0)
+ * CTS subtype: 0b0000000011000000 (0x00C0)
+ * bits that matter: ^^^ (0x00E0)
+ * value of those: 0b0000000011000000 (0x00C0)
+ */
+ if ((fc & 0xE0) == 0xC0)
+ hdrlen = 10;
+ else
+ hdrlen = 16;
+ break;
+ }
+
+ return hdrlen;
+}
+EXPORT_SYMBOL(ieee80211_get_hdrlen);
+
+int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
+{
+ const struct ieee80211_hdr *hdr = (const struct ieee80211_hdr *) skb->data;
+ int hdrlen;
+
+ if (unlikely(skb->len < 10))
+ return 0;
+ hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control));
+ if (unlikely(hdrlen > skb->len))
+ return 0;
+ return hdrlen;
+}
+EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
+
+int ieee80211_is_eapol(const struct sk_buff *skb)
+{
+ const struct ieee80211_hdr *hdr;
+ u16 fc;
+ int hdrlen;
+
+ if (unlikely(skb->len < 10))
+ return 0;
+
+ hdr = (const struct ieee80211_hdr *) skb->data;
+ fc = le16_to_cpu(hdr->frame_control);
+
+ if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
+ return 0;
+
+ hdrlen = ieee80211_get_hdrlen(fc);
+
+ if (unlikely(skb->len >= hdrlen + sizeof(eapol_header) &&
+ memcmp(skb->data + hdrlen, eapol_header,
+ sizeof(eapol_header)) == 0))
+ return 1;
+
+ return 0;
+}
+
+void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
+
+ hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
+ if (tx->u.tx.extra_frag) {
+ struct ieee80211_hdr *fhdr;
+ int i;
+ for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+ fhdr = (struct ieee80211_hdr *)
+ tx->u.tx.extra_frag[i]->data;
+ fhdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
+ }
+ }
+}
+
+int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
+ int rate, int erp, int short_preamble)
+{
+ int dur;
+
+ /* calculate duration (in microseconds, rounded up to next higher
+ * integer if it includes a fractional microsecond) to send frame of
+ * len bytes (does not include FCS) at the given rate. Duration will
+ * also include SIFS.
+ *
+ * rate is in 100 kbps, so divident is multiplied by 10 in the
+ * DIV_ROUND_UP() operations.
+ */
+
+ if (local->hw.conf.phymode == MODE_IEEE80211A || erp) {
+ /*
+ * OFDM:
+ *
+ * N_DBPS = DATARATE x 4
+ * N_SYM = Ceiling((16+8xLENGTH+6) / N_DBPS)
+ * (16 = SIGNAL time, 6 = tail bits)
+ * TXTIME = T_PREAMBLE + T_SIGNAL + T_SYM x N_SYM + Signal Ext
+ *
+ * T_SYM = 4 usec
+ * 802.11a - 17.5.2: aSIFSTime = 16 usec
+ * 802.11g - 19.8.4: aSIFSTime = 10 usec +
+ * signal ext = 6 usec
+ */
+ dur = 16; /* SIFS + signal ext */
+ dur += 16; /* 17.3.2.3: T_PREAMBLE = 16 usec */
+ dur += 4; /* 17.3.2.3: T_SIGNAL = 4 usec */
+ dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10,
+ 4 * rate); /* T_SYM x N_SYM */
+ } else {
+ /*
+ * 802.11b or 802.11g with 802.11b compatibility:
+ * 18.3.4: TXTIME = PreambleLength + PLCPHeaderTime +
+ * Ceiling(((LENGTH+PBCC)x8)/DATARATE). PBCC=0.
+ *
+ * 802.11 (DS): 15.3.3, 802.11b: 18.3.4
+ * aSIFSTime = 10 usec
+ * aPreambleLength = 144 usec or 72 usec with short preamble
+ * aPLCPHeaderLength = 48 usec or 24 usec with short preamble
+ */
+ dur = 10; /* aSIFSTime = 10 usec */
+ dur += short_preamble ? (72 + 24) : (144 + 48);
+
+ dur += DIV_ROUND_UP(8 * (len + 4) * 10, rate);
+ }
+
+ return dur;
+}
+
+/* Exported duration function for driver use */
+__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, int if_id,
+ size_t frame_len, int rate)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct net_device *bdev = dev_get_by_index(if_id);
+ struct ieee80211_sub_if_data *sdata;
+ u16 dur;
+ int erp;
+
+ if (unlikely(!bdev))
+ return 0;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
+ erp = ieee80211_is_erp_rate(hw->conf.phymode, rate);
+ dur = ieee80211_frame_duration(local, frame_len, rate,
+ erp, sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
+
+ dev_put(bdev);
+ return cpu_to_le16(dur);
+}
+EXPORT_SYMBOL(ieee80211_generic_frame_duration);
+
+__le16 ieee80211_rts_duration(struct ieee80211_hw *hw, int if_id,
+ size_t frame_len,
+ const struct ieee80211_tx_control *frame_txctl)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_rate *rate;
+ struct net_device *bdev = dev_get_by_index(if_id);
+ struct ieee80211_sub_if_data *sdata;
+ int short_preamble;
+ int erp;
+ u16 dur;
+
+ if (unlikely(!bdev))
+ return 0;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
+ short_preamble = sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE;
+
+ rate = frame_txctl->rts_rate;
+ erp = !!(rate->flags & IEEE80211_RATE_ERP);
+
+ /* CTS duration */
+ dur = ieee80211_frame_duration(local, 10, rate->rate,
+ erp, short_preamble);
+ /* Data frame duration */
+ dur += ieee80211_frame_duration(local, frame_len, rate->rate,
+ erp, short_preamble);
+ /* ACK duration */
+ dur += ieee80211_frame_duration(local, 10, rate->rate,
+ erp, short_preamble);
+
+ dev_put(bdev);
+ return cpu_to_le16(dur);
+}
+EXPORT_SYMBOL(ieee80211_rts_duration);
+
+__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, int if_id,
+ size_t frame_len,
+ const struct ieee80211_tx_control *frame_txctl)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_rate *rate;
+ struct net_device *bdev = dev_get_by_index(if_id);
+ struct ieee80211_sub_if_data *sdata;
+ int short_preamble;
+ int erp;
+ u16 dur;
+
+ if (unlikely(!bdev))
+ return 0;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
+ short_preamble = sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE;
+
+ rate = frame_txctl->rts_rate;
+ erp = !!(rate->flags & IEEE80211_RATE_ERP);
+
+ /* Data frame duration */
+ dur = ieee80211_frame_duration(local, frame_len, rate->rate,
+ erp, short_preamble);
+ if (!(frame_txctl->flags & IEEE80211_TXCTL_NO_ACK)) {
+ /* ACK duration */
+ dur += ieee80211_frame_duration(local, 10, rate->rate,
+ erp, short_preamble);
+ }
+
+ dev_put(bdev);
+ return cpu_to_le16(dur);
+}
+EXPORT_SYMBOL(ieee80211_ctstoself_duration);
+
+struct ieee80211_rate *
+ieee80211_get_rate(struct ieee80211_local *local, int phymode, int hw_rate)
+{
+ struct ieee80211_hw_mode *mode;
+ int r;
+
+ list_for_each_entry(mode, &local->modes_list, list) {
+ if (mode->mode != phymode)
+ continue;
+ for (r = 0; r < mode->num_rates; r++) {
+ struct ieee80211_rate *rate = &mode->rates[r];
+ if (rate->val == hw_rate ||
+ (rate->flags & IEEE80211_RATE_PREAMBLE2 &&
+ rate->val2 == hw_rate))
+ return rate;
+ }
+ }
+
+ return NULL;
+}
+
+void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ if (test_and_clear_bit(IEEE80211_LINK_STATE_XOFF,
+ &local->state[queue])) {
+ if (test_bit(IEEE80211_LINK_STATE_PENDING,
+ &local->state[queue]))
+ tasklet_schedule(&local->tx_pending_tasklet);
+ else
+ if (!ieee80211_qdisc_installed(local->mdev)) {
+ if (queue == 0)
+ netif_wake_queue(local->mdev);
+ } else
+ __netif_schedule(local->mdev);
+ }
+}
+EXPORT_SYMBOL(ieee80211_wake_queue);
+
+void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ if (!ieee80211_qdisc_installed(local->mdev) && queue == 0)
+ netif_stop_queue(local->mdev);
+ set_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]);
+}
+EXPORT_SYMBOL(ieee80211_stop_queue);
+
+void ieee80211_start_queues(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ int i;
+
+ for (i = 0; i < local->hw.queues; i++)
+ clear_bit(IEEE80211_LINK_STATE_XOFF, &local->state[i]);
+ if (!ieee80211_qdisc_installed(local->mdev))
+ netif_start_queue(local->mdev);
+}
+EXPORT_SYMBOL(ieee80211_start_queues);
+
+void ieee80211_stop_queues(struct ieee80211_hw *hw)
+{
+ int i;
+
+ for (i = 0; i < hw->queues; i++)
+ ieee80211_stop_queue(hw, i);
+}
+EXPORT_SYMBOL(ieee80211_stop_queues);
+
+void ieee80211_wake_queues(struct ieee80211_hw *hw)
+{
+ int i;
+
+ for (i = 0; i < hw->queues; i++)
+ ieee80211_wake_queue(hw, i);
+}
+EXPORT_SYMBOL(ieee80211_wake_queues);
--- /dev/null
+/*
+ * Software WEP encryption implementation
+ * Copyright 2002, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright 2003, Instant802 Networks, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/random.h>
+#include <linux/compiler.h>
+#include <linux/crc32.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <linux/mm.h>
+#include <asm/scatterlist.h>
+
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "wep.h"
+
+
+int ieee80211_wep_init(struct ieee80211_local *local)
+{
+ /* start WEP IV from a random value */
+ get_random_bytes(&local->wep_iv, WEP_IV_LEN);
+
+ local->wep_tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0,
+ CRYPTO_ALG_ASYNC);
+ if (IS_ERR(local->wep_tx_tfm))
+ return -ENOMEM;
+
+ local->wep_rx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0,
+ CRYPTO_ALG_ASYNC);
+ if (IS_ERR(local->wep_rx_tfm)) {
+ crypto_free_blkcipher(local->wep_tx_tfm);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+void ieee80211_wep_free(struct ieee80211_local *local)
+{
+ crypto_free_blkcipher(local->wep_tx_tfm);
+ crypto_free_blkcipher(local->wep_rx_tfm);
+}
+
+static inline int ieee80211_wep_weak_iv(u32 iv, int keylen)
+{
+ /* Fluhrer, Mantin, and Shamir have reported weaknesses in the
+ * key scheduling algorithm of RC4. At least IVs (KeyByte + 3,
+ * 0xff, N) can be used to speedup attacks, so avoid using them. */
+ if ((iv & 0xff00) == 0xff00) {
+ u8 B = (iv >> 16) & 0xff;
+ if (B >= 3 && B < 3 + keylen)
+ return 1;
+ }
+ return 0;
+}
+
+
+static void ieee80211_wep_get_iv(struct ieee80211_local *local,
+ struct ieee80211_key *key, u8 *iv)
+{
+ local->wep_iv++;
+ if (ieee80211_wep_weak_iv(local->wep_iv, key->conf.keylen))
+ local->wep_iv += 0x0100;
+
+ if (!iv)
+ return;
+
+ *iv++ = (local->wep_iv >> 16) & 0xff;
+ *iv++ = (local->wep_iv >> 8) & 0xff;
+ *iv++ = local->wep_iv & 0xff;
+ *iv++ = key->conf.keyidx << 6;
+}
+
+
+static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local,
+ struct sk_buff *skb,
+ struct ieee80211_key *key)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u16 fc;
+ int hdrlen;
+ u8 *newhdr;
+
+ fc = le16_to_cpu(hdr->frame_control);
+ fc |= IEEE80211_FCTL_PROTECTED;
+ hdr->frame_control = cpu_to_le16(fc);
+
+ if ((skb_headroom(skb) < WEP_IV_LEN ||
+ skb_tailroom(skb) < WEP_ICV_LEN)) {
+ I802_DEBUG_INC(local->tx_expand_skb_head);
+ if (unlikely(pskb_expand_head(skb, WEP_IV_LEN, WEP_ICV_LEN,
+ GFP_ATOMIC)))
+ return NULL;
+ }
+
+ hdrlen = ieee80211_get_hdrlen(fc);
+ newhdr = skb_push(skb, WEP_IV_LEN);
+ memmove(newhdr, newhdr + WEP_IV_LEN, hdrlen);
+ ieee80211_wep_get_iv(local, key, newhdr + hdrlen);
+ return newhdr + hdrlen;
+}
+
+
+static void ieee80211_wep_remove_iv(struct ieee80211_local *local,
+ struct sk_buff *skb,
+ struct ieee80211_key *key)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u16 fc;
+ int hdrlen;
+
+ fc = le16_to_cpu(hdr->frame_control);
+ hdrlen = ieee80211_get_hdrlen(fc);
+ memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen);
+ skb_pull(skb, WEP_IV_LEN);
+}
+
+
+/* Perform WEP encryption using given key. data buffer must have tailroom
+ * for 4-byte ICV. data_len must not include this ICV. Note: this function
+ * does _not_ add IV. data = RC4(data | CRC32(data)) */
+void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
+ size_t klen, u8 *data, size_t data_len)
+{
+ struct blkcipher_desc desc = { .tfm = tfm };
+ struct scatterlist sg;
+ __le32 *icv;
+
+ icv = (__le32 *)(data + data_len);
+ *icv = cpu_to_le32(~crc32_le(~0, data, data_len));
+
+ crypto_blkcipher_setkey(tfm, rc4key, klen);
+ sg.page = virt_to_page(data);
+ sg.offset = offset_in_page(data);
+ sg.length = data_len + WEP_ICV_LEN;
+ crypto_blkcipher_encrypt(&desc, &sg, &sg, sg.length);
+}
+
+
+/* Perform WEP encryption on given skb. 4 bytes of extra space (IV) in the
+ * beginning of the buffer 4 bytes of extra space (ICV) in the end of the
+ * buffer will be added. Both IV and ICV will be transmitted, so the
+ * payload length increases with 8 bytes.
+ *
+ * WEP frame payload: IV + TX key idx, RC4(data), ICV = RC4(CRC32(data))
+ */
+int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb,
+ struct ieee80211_key *key)
+{
+ u32 klen;
+ u8 *rc4key, *iv;
+ size_t len;
+
+ if (!key || key->conf.alg != ALG_WEP)
+ return -1;
+
+ klen = 3 + key->conf.keylen;
+ rc4key = kmalloc(klen, GFP_ATOMIC);
+ if (!rc4key)
+ return -1;
+
+ iv = ieee80211_wep_add_iv(local, skb, key);
+ if (!iv) {
+ kfree(rc4key);
+ return -1;
+ }
+
+ len = skb->len - (iv + WEP_IV_LEN - skb->data);
+
+ /* Prepend 24-bit IV to RC4 key */
+ memcpy(rc4key, iv, 3);
+
+ /* Copy rest of the WEP key (the secret part) */
+ memcpy(rc4key + 3, key->conf.key, key->conf.keylen);
+
+ /* Add room for ICV */
+ skb_put(skb, WEP_ICV_LEN);
+
+ ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, klen,
+ iv + WEP_IV_LEN, len);
+
+ kfree(rc4key);
+
+ return 0;
+}
+
+
+/* Perform WEP decryption using given key. data buffer includes encrypted
+ * payload, including 4-byte ICV, but _not_ IV. data_len must not include ICV.
+ * Return 0 on success and -1 on ICV mismatch. */
+int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
+ size_t klen, u8 *data, size_t data_len)
+{
+ struct blkcipher_desc desc = { .tfm = tfm };
+ struct scatterlist sg;
+ __le32 crc;
+
+ crypto_blkcipher_setkey(tfm, rc4key, klen);
+ sg.page = virt_to_page(data);
+ sg.offset = offset_in_page(data);
+ sg.length = data_len + WEP_ICV_LEN;
+ crypto_blkcipher_decrypt(&desc, &sg, &sg, sg.length);
+
+ crc = cpu_to_le32(~crc32_le(~0, data, data_len));
+ if (memcmp(&crc, data + data_len, WEP_ICV_LEN) != 0)
+ /* ICV mismatch */
+ return -1;
+
+ return 0;
+}
+
+
+/* Perform WEP decryption on given skb. Buffer includes whole WEP part of
+ * the frame: IV (4 bytes), encrypted payload (including SNAP header),
+ * ICV (4 bytes). skb->len includes both IV and ICV.
+ *
+ * Returns 0 if frame was decrypted successfully and ICV was correct and -1 on
+ * failure. If frame is OK, IV and ICV will be removed, i.e., decrypted payload
+ * is moved to the beginning of the skb and skb length will be reduced.
+ */
+int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
+ struct ieee80211_key *key)
+{
+ u32 klen;
+ u8 *rc4key;
+ u8 keyidx;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u16 fc;
+ int hdrlen;
+ size_t len;
+ int ret = 0;
+
+ fc = le16_to_cpu(hdr->frame_control);
+ if (!(fc & IEEE80211_FCTL_PROTECTED))
+ return -1;
+
+ hdrlen = ieee80211_get_hdrlen(fc);
+
+ if (skb->len < 8 + hdrlen)
+ return -1;
+
+ len = skb->len - hdrlen - 8;
+
+ keyidx = skb->data[hdrlen + 3] >> 6;
+
+ if (!key || keyidx != key->conf.keyidx || key->conf.alg != ALG_WEP)
+ return -1;
+
+ klen = 3 + key->conf.keylen;
+
+ rc4key = kmalloc(klen, GFP_ATOMIC);
+ if (!rc4key)
+ return -1;
+
+ /* Prepend 24-bit IV to RC4 key */
+ memcpy(rc4key, skb->data + hdrlen, 3);
+
+ /* Copy rest of the WEP key (the secret part) */
+ memcpy(rc4key + 3, key->conf.key, key->conf.keylen);
+
+ if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen,
+ skb->data + hdrlen + WEP_IV_LEN,
+ len)) {
+ printk(KERN_DEBUG "WEP decrypt failed (ICV)\n");
+ ret = -1;
+ }
+
+ kfree(rc4key);
+
+ /* Trim ICV */
+ skb_trim(skb, skb->len - WEP_ICV_LEN);
+
+ /* Remove IV */
+ memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen);
+ skb_pull(skb, WEP_IV_LEN);
+
+ return ret;
+}
+
+
+u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u16 fc;
+ int hdrlen;
+ u8 *ivpos;
+ u32 iv;
+
+ fc = le16_to_cpu(hdr->frame_control);
+ if (!(fc & IEEE80211_FCTL_PROTECTED))
+ return NULL;
+
+ hdrlen = ieee80211_get_hdrlen(fc);
+ ivpos = skb->data + hdrlen;
+ iv = (ivpos[0] << 16) | (ivpos[1] << 8) | ivpos[2];
+
+ if (ieee80211_wep_weak_iv(iv, key->conf.keylen))
+ return ivpos;
+
+ return NULL;
+}
+
+ieee80211_txrx_result
+ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx)
+{
+ if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
+ ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
+ (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH))
+ return TXRX_CONTINUE;
+
+ if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) {
+ if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key)) {
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: RX WEP frame, decrypt "
+ "failed\n", rx->dev->name);
+ return TXRX_DROP;
+ }
+ } else if (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED)) {
+ ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key);
+ /* remove ICV */
+ skb_trim(rx->skb, rx->skb->len - 4);
+ }
+
+ return TXRX_CONTINUE;
+}
+
+static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb)
+{
+ if (!(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) {
+ if (ieee80211_wep_encrypt(tx->local, skb, tx->key))
+ return -1;
+ } else {
+ tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
+ if (tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) {
+ if (!ieee80211_wep_add_iv(tx->local, skb, tx->key))
+ return -1;
+ }
+ }
+ return 0;
+}
+
+ieee80211_txrx_result
+ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
+ u16 fc;
+
+ fc = le16_to_cpu(hdr->frame_control);
+
+ if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
+ ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
+ (fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)))
+ return TXRX_CONTINUE;
+
+ tx->u.tx.control->iv_len = WEP_IV_LEN;
+ tx->u.tx.control->icv_len = WEP_ICV_LEN;
+ ieee80211_tx_set_iswep(tx);
+
+ if (wep_encrypt_skb(tx, tx->skb) < 0) {
+ I802_DEBUG_INC(tx->local->tx_handlers_drop_wep);
+ return TXRX_DROP;
+ }
+
+ if (tx->u.tx.extra_frag) {
+ int i;
+ for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+ if (wep_encrypt_skb(tx, tx->u.tx.extra_frag[i]) < 0) {
+ I802_DEBUG_INC(tx->local->
+ tx_handlers_drop_wep);
+ return TXRX_DROP;
+ }
+ }
+ }
+
+ return TXRX_CONTINUE;
+}
--- /dev/null
+/*
+ * Software WEP encryption implementation
+ * Copyright 2002, Jouni Malinen <jkmaline@cc.hut.fi>
+ * Copyright 2003, Instant802 Networks, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef WEP_H
+#define WEP_H
+
+#include <linux/skbuff.h>
+#include <linux/types.h>
+#include "ieee80211_i.h"
+#include "ieee80211_key.h"
+
+int ieee80211_wep_init(struct ieee80211_local *local);
+void ieee80211_wep_free(struct ieee80211_local *local);
+void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
+ size_t klen, u8 *data, size_t data_len);
+int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
+ size_t klen, u8 *data, size_t data_len);
+int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb,
+ struct ieee80211_key *key);
+int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
+ struct ieee80211_key *key);
+u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key);
+
+ieee80211_txrx_result
+ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx);
+ieee80211_txrx_result
+ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx);
+
+#endif /* WEP_H */
--- /dev/null
+/*
+ * Copyright 2004, Instant802 Networks, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/module.h>
+#include <linux/if_arp.h>
+#include <linux/types.h>
+#include <net/ip.h>
+#include <net/pkt_sched.h>
+
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "wme.h"
+
+/* maximum number of hardware queues we support. */
+#define TC_80211_MAX_QUEUES 8
+
+struct ieee80211_sched_data
+{
+ struct tcf_proto *filter_list;
+ struct Qdisc *queues[TC_80211_MAX_QUEUES];
+ struct sk_buff_head requeued[TC_80211_MAX_QUEUES];
+};
+
+
+/* given a data frame determine the 802.1p/1d tag to use */
+static inline unsigned classify_1d(struct sk_buff *skb, struct Qdisc *qd)
+{
+ struct iphdr *ip;
+ int dscp;
+ int offset;
+
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct tcf_result res = { -1, 0 };
+
+ /* if there is a user set filter list, call out to that */
+ if (q->filter_list) {
+ tc_classify(skb, q->filter_list, &res);
+ if (res.class != -1)
+ return res.class;
+ }
+
+ /* skb->priority values from 256->263 are magic values to
+ * directly indicate a specific 802.1d priority.
+ * This is used to allow 802.1d priority to be passed directly in
+ * from VLAN tags, etc. */
+ if (skb->priority >= 256 && skb->priority <= 263)
+ return skb->priority - 256;
+
+ /* check there is a valid IP header present */
+ offset = ieee80211_get_hdrlen_from_skb(skb) + 8 /* LLC + proto */;
+ if (skb->protocol != __constant_htons(ETH_P_IP) ||
+ skb->len < offset + sizeof(*ip))
+ return 0;
+
+ ip = (struct iphdr *) (skb->data + offset);
+
+ dscp = ip->tos & 0xfc;
+ if (dscp & 0x1c)
+ return 0;
+ return dscp >> 5;
+}
+
+
+static inline int wme_downgrade_ac(struct sk_buff *skb)
+{
+ switch (skb->priority) {
+ case 6:
+ case 7:
+ skb->priority = 5; /* VO -> VI */
+ return 0;
+ case 4:
+ case 5:
+ skb->priority = 3; /* VI -> BE */
+ return 0;
+ case 0:
+ case 3:
+ skb->priority = 2; /* BE -> BK */
+ return 0;
+ default:
+ return -1;
+ }
+}
+
+
+/* positive return value indicates which queue to use
+ * negative return value indicates to drop the frame */
+static inline int classify80211(struct sk_buff *skb, struct Qdisc *qd)
+{
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ unsigned short fc = le16_to_cpu(hdr->frame_control);
+ int qos;
+ const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };
+
+ /* see if frame is data or non data frame */
+ if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)) {
+ /* management frames go on AC_VO queue, but are sent
+ * without QoS control fields */
+ return IEEE80211_TX_QUEUE_DATA0;
+ }
+
+ if (0 /* injected */) {
+ /* use AC from radiotap */
+ }
+
+ /* is this a QoS frame? */
+ qos = fc & IEEE80211_STYPE_QOS_DATA;
+
+ if (!qos) {
+ skb->priority = 0; /* required for correct WPA/11i MIC */
+ return ieee802_1d_to_ac[skb->priority];
+ }
+
+ /* use the data classifier to determine what 802.1d tag the
+ * data frame has */
+ skb->priority = classify_1d(skb, qd);
+
+ /* in case we are a client verify acm is not set for this ac */
+ while (unlikely(local->wmm_acm & BIT(skb->priority))) {
+ if (wme_downgrade_ac(skb)) {
+ /* No AC with lower priority has acm=0, drop packet. */
+ return -1;
+ }
+ }
+
+ /* look up which queue to use for frames with this 1d tag */
+ return ieee802_1d_to_ac[skb->priority];
+}
+
+
+static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
+{
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct ieee80211_tx_packet_data *pkt_data =
+ (struct ieee80211_tx_packet_data *) skb->cb;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ unsigned short fc = le16_to_cpu(hdr->frame_control);
+ struct Qdisc *qdisc;
+ int err, queue;
+
+ if (pkt_data->flags & IEEE80211_TXPD_REQUEUE) {
+ skb_queue_tail(&q->requeued[pkt_data->queue], skb);
+ qd->q.qlen++;
+ return 0;
+ }
+
+ queue = classify80211(skb, qd);
+
+ /* now we know the 1d priority, fill in the QoS header if there is one
+ */
+ if (WLAN_FC_IS_QOS_DATA(fc)) {
+ u8 *p = skb->data + ieee80211_get_hdrlen(fc) - 2;
+ u8 qos_hdr = skb->priority & QOS_CONTROL_TAG1D_MASK;
+ if (local->wifi_wme_noack_test)
+ qos_hdr |= QOS_CONTROL_ACK_POLICY_NOACK <<
+ QOS_CONTROL_ACK_POLICY_SHIFT;
+ /* qos header is 2 bytes, second reserved */
+ *p = qos_hdr;
+ p++;
+ *p = 0;
+ }
+
+ if (unlikely(queue >= local->hw.queues)) {
+#if 0
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG "%s - queue=%d (hw does not "
+ "support) -> %d\n",
+ __func__, queue, local->hw.queues - 1);
+ }
+#endif
+ queue = local->hw.queues - 1;
+ }
+
+ if (unlikely(queue < 0)) {
+ kfree_skb(skb);
+ err = NET_XMIT_DROP;
+ } else {
+ pkt_data->queue = (unsigned int) queue;
+ qdisc = q->queues[queue];
+ err = qdisc->enqueue(skb, qdisc);
+ if (err == NET_XMIT_SUCCESS) {
+ qd->q.qlen++;
+ qd->bstats.bytes += skb->len;
+ qd->bstats.packets++;
+ return NET_XMIT_SUCCESS;
+ }
+ }
+ qd->qstats.drops++;
+ return err;
+}
+
+
+/* TODO: clean up the cases where master_hard_start_xmit
+ * returns non 0 - it shouldn't ever do that. Once done we
+ * can remove this function */
+static int wme_qdiscop_requeue(struct sk_buff *skb, struct Qdisc* qd)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct ieee80211_tx_packet_data *pkt_data =
+ (struct ieee80211_tx_packet_data *) skb->cb;
+ struct Qdisc *qdisc;
+ int err;
+
+ /* we recorded which queue to use earlier! */
+ qdisc = q->queues[pkt_data->queue];
+
+ if ((err = qdisc->ops->requeue(skb, qdisc)) == 0) {
+ qd->q.qlen++;
+ return 0;
+ }
+ qd->qstats.drops++;
+ return err;
+}
+
+
+static struct sk_buff *wme_qdiscop_dequeue(struct Qdisc* qd)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct net_device *dev = qd->dev;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ struct sk_buff *skb;
+ struct Qdisc *qdisc;
+ int queue;
+
+ /* check all the h/w queues in numeric/priority order */
+ for (queue = 0; queue < hw->queues; queue++) {
+ /* see if there is room in this hardware queue */
+ if (test_bit(IEEE80211_LINK_STATE_XOFF,
+ &local->state[queue]) ||
+ test_bit(IEEE80211_LINK_STATE_PENDING,
+ &local->state[queue]))
+ continue;
+
+ /* there is space - try and get a frame */
+ skb = skb_dequeue(&q->requeued[queue]);
+ if (skb) {
+ qd->q.qlen--;
+ return skb;
+ }
+
+ qdisc = q->queues[queue];
+ skb = qdisc->dequeue(qdisc);
+ if (skb) {
+ qd->q.qlen--;
+ return skb;
+ }
+ }
+ /* returning a NULL here when all the h/w queues are full means we
+ * never need to call netif_stop_queue in the driver */
+ return NULL;
+}
+
+
+static void wme_qdiscop_reset(struct Qdisc* qd)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ int queue;
+
+ /* QUESTION: should we have some hardware flush functionality here? */
+
+ for (queue = 0; queue < hw->queues; queue++) {
+ skb_queue_purge(&q->requeued[queue]);
+ qdisc_reset(q->queues[queue]);
+ }
+ qd->q.qlen = 0;
+}
+
+
+static void wme_qdiscop_destroy(struct Qdisc* qd)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ int queue;
+
+ tcf_destroy_chain(q->filter_list);
+ q->filter_list = NULL;
+
+ for (queue=0; queue < hw->queues; queue++) {
+ skb_queue_purge(&q->requeued[queue]);
+ qdisc_destroy(q->queues[queue]);
+ q->queues[queue] = &noop_qdisc;
+ }
+}
+
+
+/* called whenever parameters are updated on existing qdisc */
+static int wme_qdiscop_tune(struct Qdisc *qd, struct rtattr *opt)
+{
+/* struct ieee80211_sched_data *q = qdisc_priv(qd);
+*/
+ /* check our options block is the right size */
+ /* copy any options to our local structure */
+/* Ignore options block for now - always use static mapping
+ struct tc_ieee80211_qopt *qopt = RTA_DATA(opt);
+
+ if (opt->rta_len < RTA_LENGTH(sizeof(*qopt)))
+ return -EINVAL;
+ memcpy(q->tag2queue, qopt->tag2queue, sizeof(qopt->tag2queue));
+*/
+ return 0;
+}
+
+
+/* called during initial creation of qdisc on device */
+static int wme_qdiscop_init(struct Qdisc *qd, struct rtattr *opt)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct net_device *dev = qd->dev;
+ struct ieee80211_local *local;
+ int queues;
+ int err = 0, i;
+
+ /* check that device is a mac80211 device */
+ if (!dev->ieee80211_ptr ||
+ dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
+ return -EINVAL;
+
+ /* check this device is an ieee80211 master type device */
+ if (dev->type != ARPHRD_IEEE80211)
+ return -EINVAL;
+
+ /* check that there is no qdisc currently attached to device
+ * this ensures that we will be the root qdisc. (I can't find a better
+ * way to test this explicitly) */
+ if (dev->qdisc_sleeping != &noop_qdisc)
+ return -EINVAL;
+
+ if (qd->flags & TCQ_F_INGRESS)
+ return -EINVAL;
+
+ local = wdev_priv(dev->ieee80211_ptr);
+ queues = local->hw.queues;
+
+ /* if options were passed in, set them */
+ if (opt) {
+ err = wme_qdiscop_tune(qd, opt);
+ }
+
+ /* create child queues */
+ for (i = 0; i < queues; i++) {
+ skb_queue_head_init(&q->requeued[i]);
+ q->queues[i] = qdisc_create_dflt(qd->dev, &pfifo_qdisc_ops,
+ qd->handle);
+ if (!q->queues[i]) {
+ q->queues[i] = &noop_qdisc;
+ printk(KERN_ERR "%s child qdisc %i creation failed", dev->name, i);
+ }
+ }
+
+ return err;
+}
+
+static int wme_qdiscop_dump(struct Qdisc *qd, struct sk_buff *skb)
+{
+/* struct ieee80211_sched_data *q = qdisc_priv(qd);
+ unsigned char *p = skb->tail;
+ struct tc_ieee80211_qopt opt;
+
+ memcpy(&opt.tag2queue, q->tag2queue, TC_80211_MAX_TAG + 1);
+ RTA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
+*/ return skb->len;
+/*
+rtattr_failure:
+ skb_trim(skb, p - skb->data);*/
+ return -1;
+}
+
+
+static int wme_classop_graft(struct Qdisc *qd, unsigned long arg,
+ struct Qdisc *new, struct Qdisc **old)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ unsigned long queue = arg - 1;
+
+ if (queue >= hw->queues)
+ return -EINVAL;
+
+ if (!new)
+ new = &noop_qdisc;
+
+ sch_tree_lock(qd);
+ *old = q->queues[queue];
+ q->queues[queue] = new;
+ qdisc_reset(*old);
+ sch_tree_unlock(qd);
+
+ return 0;
+}
+
+
+static struct Qdisc *
+wme_classop_leaf(struct Qdisc *qd, unsigned long arg)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ unsigned long queue = arg - 1;
+
+ if (queue >= hw->queues)
+ return NULL;
+
+ return q->queues[queue];
+}
+
+
+static unsigned long wme_classop_get(struct Qdisc *qd, u32 classid)
+{
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ unsigned long queue = TC_H_MIN(classid);
+
+ if (queue - 1 >= hw->queues)
+ return 0;
+
+ return queue;
+}
+
+
+static unsigned long wme_classop_bind(struct Qdisc *qd, unsigned long parent,
+ u32 classid)
+{
+ return wme_classop_get(qd, classid);
+}
+
+
+static void wme_classop_put(struct Qdisc *q, unsigned long cl)
+{
+}
+
+
+static int wme_classop_change(struct Qdisc *qd, u32 handle, u32 parent,
+ struct rtattr **tca, unsigned long *arg)
+{
+ unsigned long cl = *arg;
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+
+ if (cl - 1 > hw->queues)
+ return -ENOENT;
+
+ /* TODO: put code to program hardware queue parameters here,
+ * to allow programming from tc command line */
+
+ return 0;
+}
+
+
+/* we don't support deleting hardware queues
+ * when we add WMM-SA support - TSPECs may be deleted here */
+static int wme_classop_delete(struct Qdisc *qd, unsigned long cl)
+{
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+
+ if (cl - 1 > hw->queues)
+ return -ENOENT;
+ return 0;
+}
+
+
+static int wme_classop_dump_class(struct Qdisc *qd, unsigned long cl,
+ struct sk_buff *skb, struct tcmsg *tcm)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+
+ if (cl - 1 > hw->queues)
+ return -ENOENT;
+ tcm->tcm_handle = TC_H_MIN(cl);
+ tcm->tcm_parent = qd->handle;
+ tcm->tcm_info = q->queues[cl-1]->handle; /* do we need this? */
+ return 0;
+}
+
+
+static void wme_classop_walk(struct Qdisc *qd, struct qdisc_walker *arg)
+{
+ struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ int queue;
+
+ if (arg->stop)
+ return;
+
+ for (queue = 0; queue < hw->queues; queue++) {
+ if (arg->count < arg->skip) {
+ arg->count++;
+ continue;
+ }
+ /* we should return classids for our internal queues here
+ * as well as the external ones */
+ if (arg->fn(qd, queue+1, arg) < 0) {
+ arg->stop = 1;
+ break;
+ }
+ arg->count++;
+ }
+}
+
+
+static struct tcf_proto ** wme_classop_find_tcf(struct Qdisc *qd,
+ unsigned long cl)
+{
+ struct ieee80211_sched_data *q = qdisc_priv(qd);
+
+ if (cl)
+ return NULL;
+
+ return &q->filter_list;
+}
+
+
+/* this qdisc is classful (i.e. has classes, some of which may have leaf qdiscs attached)
+ * - these are the operations on the classes */
+static struct Qdisc_class_ops class_ops =
+{
+ .graft = wme_classop_graft,
+ .leaf = wme_classop_leaf,
+
+ .get = wme_classop_get,
+ .put = wme_classop_put,
+ .change = wme_classop_change,
+ .delete = wme_classop_delete,
+ .walk = wme_classop_walk,
+
+ .tcf_chain = wme_classop_find_tcf,
+ .bind_tcf = wme_classop_bind,
+ .unbind_tcf = wme_classop_put,
+
+ .dump = wme_classop_dump_class,
+};
+
+
+/* queueing discipline operations */
+static struct Qdisc_ops wme_qdisc_ops =
+{
+ .next = NULL,
+ .cl_ops = &class_ops,
+ .id = "ieee80211",
+ .priv_size = sizeof(struct ieee80211_sched_data),
+
+ .enqueue = wme_qdiscop_enqueue,
+ .dequeue = wme_qdiscop_dequeue,
+ .requeue = wme_qdiscop_requeue,
+ .drop = NULL, /* drop not needed since we are always the root qdisc */
+
+ .init = wme_qdiscop_init,
+ .reset = wme_qdiscop_reset,
+ .destroy = wme_qdiscop_destroy,
+ .change = wme_qdiscop_tune,
+
+ .dump = wme_qdiscop_dump,
+};
+
+
+void ieee80211_install_qdisc(struct net_device *dev)
+{
+ struct Qdisc *qdisc;
+
+ qdisc = qdisc_create_dflt(dev, &wme_qdisc_ops, TC_H_ROOT);
+ if (!qdisc) {
+ printk(KERN_ERR "%s: qdisc installation failed\n", dev->name);
+ return;
+ }
+
+ /* same handle as would be allocated by qdisc_alloc_handle() */
+ qdisc->handle = 0x80010000;
+
+ qdisc_lock_tree(dev);
+ list_add_tail(&qdisc->list, &dev->qdisc_list);
+ dev->qdisc_sleeping = qdisc;
+ qdisc_unlock_tree(dev);
+}
+
+
+int ieee80211_qdisc_installed(struct net_device *dev)
+{
+ return dev->qdisc_sleeping->ops == &wme_qdisc_ops;
+}
+
+
+int ieee80211_wme_register(void)
+{
+ return register_qdisc(&wme_qdisc_ops);
+}
+
+
+void ieee80211_wme_unregister(void)
+{
+ unregister_qdisc(&wme_qdisc_ops);
+}
--- /dev/null
+/*
+ * IEEE 802.11 driver (80211.o) - QoS datatypes
+ * Copyright 2004, Instant802 Networks, Inc.
+ * Copyright 2005, Devicescape Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _WME_H
+#define _WME_H
+
+#include <linux/netdevice.h>
+#include "ieee80211_i.h"
+
+#define QOS_CONTROL_LEN 2
+
+#define QOS_CONTROL_ACK_POLICY_NORMAL 0
+#define QOS_CONTROL_ACK_POLICY_NOACK 1
+
+#define QOS_CONTROL_TID_MASK 0x0f
+#define QOS_CONTROL_ACK_POLICY_SHIFT 5
+
+#define QOS_CONTROL_TAG1D_MASK 0x07
+
+static inline int WLAN_FC_IS_QOS_DATA(u16 fc)
+{
+ return (fc & 0x8C) == 0x88;
+}
+
+#ifdef CONFIG_NET_SCHED
+void ieee80211_install_qdisc(struct net_device *dev);
+int ieee80211_qdisc_installed(struct net_device *dev);
+
+int ieee80211_wme_register(void);
+void ieee80211_wme_unregister(void);
+#else
+static inline void ieee80211_install_qdisc(struct net_device *dev)
+{
+}
+static inline int ieee80211_qdisc_installed(struct net_device *dev)
+{
+ return 0;
+}
+
+static inline int ieee80211_wme_register(void)
+{
+ return 0;
+}
+static inline void ieee80211_wme_unregister(void)
+{
+}
+#endif /* CONFIG_NET_SCHED */
+
+#endif /* _WME_H */
--- /dev/null
+/*
+ * Copyright 2002-2004, Instant802 Networks, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/skbuff.h>
+#include <linux/compiler.h>
+#include <net/mac80211.h>
+
+#include "ieee80211_i.h"
+#include "michael.h"
+#include "tkip.h"
+#include "aes_ccm.h"
+#include "wpa.h"
+
+static int ieee80211_get_hdr_info(const struct sk_buff *skb, u8 **sa, u8 **da,
+ u8 *qos_tid, u8 **data, size_t *data_len)
+{
+ struct ieee80211_hdr *hdr;
+ size_t hdrlen;
+ u16 fc;
+ int a4_included;
+ u8 *pos;
+
+ hdr = (struct ieee80211_hdr *) skb->data;
+ fc = le16_to_cpu(hdr->frame_control);
+
+ hdrlen = 24;
+ if ((fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) ==
+ (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
+ hdrlen += ETH_ALEN;
+ *sa = hdr->addr4;
+ *da = hdr->addr3;
+ } else if (fc & IEEE80211_FCTL_FROMDS) {
+ *sa = hdr->addr3;
+ *da = hdr->addr1;
+ } else if (fc & IEEE80211_FCTL_TODS) {
+ *sa = hdr->addr2;
+ *da = hdr->addr3;
+ } else {
+ *sa = hdr->addr2;
+ *da = hdr->addr1;
+ }
+
+ if (fc & 0x80)
+ hdrlen += 2;
+
+ *data = skb->data + hdrlen;
+ *data_len = skb->len - hdrlen;
+
+ a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
+ (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
+ if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
+ fc & IEEE80211_STYPE_QOS_DATA) {
+ pos = (u8 *) &hdr->addr4;
+ if (a4_included)
+ pos += 6;
+ *qos_tid = pos[0] & 0x0f;
+ *qos_tid |= 0x80; /* qos_included flag */
+ } else
+ *qos_tid = 0;
+
+ return skb->len < hdrlen ? -1 : 0;
+}
+
+
+ieee80211_txrx_result
+ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx)
+{
+ u8 *data, *sa, *da, *key, *mic, qos_tid;
+ size_t data_len;
+ u16 fc;
+ struct sk_buff *skb = tx->skb;
+ int authenticator;
+ int wpa_test = 0;
+
+ fc = tx->fc;
+
+ if (!tx->key || tx->key->conf.alg != ALG_TKIP || skb->len < 24 ||
+ !WLAN_FC_DATA_PRESENT(fc))
+ return TXRX_CONTINUE;
+
+ if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len))
+ return TXRX_DROP;
+
+ if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
+ !(tx->flags & IEEE80211_TXRXD_FRAGMENTED) &&
+ !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) &&
+ !wpa_test) {
+ /* hwaccel - with no need for preallocated room for Michael MIC
+ */
+ return TXRX_CONTINUE;
+ }
+
+ if (skb_tailroom(skb) < MICHAEL_MIC_LEN) {
+ I802_DEBUG_INC(tx->local->tx_expand_skb_head);
+ if (unlikely(pskb_expand_head(skb, TKIP_IV_LEN,
+ MICHAEL_MIC_LEN + TKIP_ICV_LEN,
+ GFP_ATOMIC))) {
+ printk(KERN_DEBUG "%s: failed to allocate more memory "
+ "for Michael MIC\n", tx->dev->name);
+ return TXRX_DROP;
+ }
+ }
+
+#if 0
+ authenticator = fc & IEEE80211_FCTL_FROMDS; /* FIX */
+#else
+ authenticator = 1;
+#endif
+ key = &tx->key->conf.key[authenticator ? ALG_TKIP_TEMP_AUTH_TX_MIC_KEY :
+ ALG_TKIP_TEMP_AUTH_RX_MIC_KEY];
+ mic = skb_put(skb, MICHAEL_MIC_LEN);
+ michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
+
+ return TXRX_CONTINUE;
+}
+
+
+ieee80211_txrx_result
+ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
+{
+ u8 *data, *sa, *da, *key = NULL, qos_tid;
+ size_t data_len;
+ u16 fc;
+ u8 mic[MICHAEL_MIC_LEN];
+ struct sk_buff *skb = rx->skb;
+ int authenticator = 1, wpa_test = 0;
+
+ fc = rx->fc;
+
+ /*
+ * No way to verify the MIC if the hardware stripped it
+ */
+ if (rx->u.rx.status->flag & RX_FLAG_MMIC_STRIPPED)
+ return TXRX_CONTINUE;
+
+ if (!rx->key || rx->key->conf.alg != ALG_TKIP ||
+ !(rx->fc & IEEE80211_FCTL_PROTECTED) || !WLAN_FC_DATA_PRESENT(fc))
+ return TXRX_CONTINUE;
+
+ if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len)
+ || data_len < MICHAEL_MIC_LEN)
+ return TXRX_DROP;
+
+ data_len -= MICHAEL_MIC_LEN;
+
+#if 0
+ authenticator = fc & IEEE80211_FCTL_TODS; /* FIX */
+#else
+ authenticator = 1;
+#endif
+ key = &rx->key->conf.key[authenticator ? ALG_TKIP_TEMP_AUTH_RX_MIC_KEY :
+ ALG_TKIP_TEMP_AUTH_TX_MIC_KEY];
+ michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
+ if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0 || wpa_test) {
+ if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
+ return TXRX_DROP;
+
+ printk(KERN_DEBUG "%s: invalid Michael MIC in data frame from "
+ MAC_FMT "\n", rx->dev->name, MAC_ARG(sa));
+
+ mac80211_ev_michael_mic_failure(rx->dev, rx->key->conf.keyidx,
+ (void *) skb->data);
+ return TXRX_DROP;
+ }
+
+ /* remove Michael MIC from payload */
+ skb_trim(skb, skb->len - MICHAEL_MIC_LEN);
+
+ /* update IV in key information to be able to detect replays */
+ rx->key->u.tkip.iv32_rx[rx->u.rx.queue] = rx->u.rx.tkip_iv32;
+ rx->key->u.tkip.iv16_rx[rx->u.rx.queue] = rx->u.rx.tkip_iv16;
+
+ return TXRX_CONTINUE;
+}
+
+
+static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx,
+ struct sk_buff *skb, int test)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_key *key = tx->key;
+ int hdrlen, len, tailneed;
+ u16 fc;
+ u8 *pos;
+
+ fc = le16_to_cpu(hdr->frame_control);
+ hdrlen = ieee80211_get_hdrlen(fc);
+ len = skb->len - hdrlen;
+
+ if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
+ tailneed = 0;
+ else
+ tailneed = TKIP_ICV_LEN;
+
+ if ((skb_headroom(skb) < TKIP_IV_LEN ||
+ skb_tailroom(skb) < tailneed)) {
+ I802_DEBUG_INC(tx->local->tx_expand_skb_head);
+ if (unlikely(pskb_expand_head(skb, TKIP_IV_LEN, tailneed,
+ GFP_ATOMIC)))
+ return -1;
+ }
+
+ pos = skb_push(skb, TKIP_IV_LEN);
+ memmove(pos, pos + TKIP_IV_LEN, hdrlen);
+ pos += hdrlen;
+
+ /* Increase IV for the frame */
+ key->u.tkip.iv16++;
+ if (key->u.tkip.iv16 == 0)
+ key->u.tkip.iv32++;
+
+ if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
+ hdr = (struct ieee80211_hdr *)skb->data;
+
+ /* hwaccel - with preallocated room for IV */
+ ieee80211_tkip_add_iv(pos, key,
+ (u8) (key->u.tkip.iv16 >> 8),
+ (u8) (((key->u.tkip.iv16 >> 8) | 0x20) &
+ 0x7f),
+ (u8) key->u.tkip.iv16);
+
+ tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
+ return 0;
+ }
+
+ /* Add room for ICV */
+ skb_put(skb, TKIP_ICV_LEN);
+
+ hdr = (struct ieee80211_hdr *) skb->data;
+ ieee80211_tkip_encrypt_data(tx->local->wep_tx_tfm,
+ key, pos, len, hdr->addr2);
+ return 0;
+}
+
+
+ieee80211_txrx_result
+ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
+ u16 fc;
+ struct sk_buff *skb = tx->skb;
+ int wpa_test = 0, test = 0;
+
+ fc = le16_to_cpu(hdr->frame_control);
+
+ if (!WLAN_FC_DATA_PRESENT(fc))
+ return TXRX_CONTINUE;
+
+ tx->u.tx.control->icv_len = TKIP_ICV_LEN;
+ tx->u.tx.control->iv_len = TKIP_IV_LEN;
+ ieee80211_tx_set_iswep(tx);
+
+ if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
+ !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) &&
+ !wpa_test) {
+ /* hwaccel - with no need for preallocated room for IV/ICV */
+ tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
+ return TXRX_CONTINUE;
+ }
+
+ if (tkip_encrypt_skb(tx, skb, test) < 0)
+ return TXRX_DROP;
+
+ if (tx->u.tx.extra_frag) {
+ int i;
+ for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+ if (tkip_encrypt_skb(tx, tx->u.tx.extra_frag[i], test)
+ < 0)
+ return TXRX_DROP;
+ }
+ }
+
+ return TXRX_CONTINUE;
+}
+
+
+ieee80211_txrx_result
+ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
+ u16 fc;
+ int hdrlen, res, hwaccel = 0, wpa_test = 0;
+ struct ieee80211_key *key = rx->key;
+ struct sk_buff *skb = rx->skb;
+
+ fc = le16_to_cpu(hdr->frame_control);
+ hdrlen = ieee80211_get_hdrlen(fc);
+
+ if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
+ return TXRX_CONTINUE;
+
+ if (!rx->sta || skb->len - hdrlen < 12)
+ return TXRX_DROP;
+
+ if (rx->u.rx.status->flag & RX_FLAG_DECRYPTED) {
+ if (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) {
+ /*
+ * Hardware took care of all processing, including
+ * replay protection, and stripped the ICV/IV so
+ * we cannot do any checks here.
+ */
+ return TXRX_CONTINUE;
+ }
+
+ /* let TKIP code verify IV, but skip decryption */
+ hwaccel = 1;
+ }
+
+ res = ieee80211_tkip_decrypt_data(rx->local->wep_rx_tfm,
+ key, skb->data + hdrlen,
+ skb->len - hdrlen, rx->sta->addr,
+ hwaccel, rx->u.rx.queue,
+ &rx->u.rx.tkip_iv32,
+ &rx->u.rx.tkip_iv16);
+ if (res != TKIP_DECRYPT_OK || wpa_test) {
+ printk(KERN_DEBUG "%s: TKIP decrypt failed for RX frame from "
+ MAC_FMT " (res=%d)\n",
+ rx->dev->name, MAC_ARG(rx->sta->addr), res);
+ return TXRX_DROP;
+ }
+
+ /* Trim ICV */
+ skb_trim(skb, skb->len - TKIP_ICV_LEN);
+
+ /* Remove IV */
+ memmove(skb->data + TKIP_IV_LEN, skb->data, hdrlen);
+ skb_pull(skb, TKIP_IV_LEN);
+
+ return TXRX_CONTINUE;
+}
+
+
+static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *b_0, u8 *aad,
+ int encrypted)
+{
+ u16 fc;
+ int a4_included, qos_included;
+ u8 qos_tid, *fc_pos, *data, *sa, *da;
+ int len_a;
+ size_t data_len;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+
+ fc_pos = (u8 *) &hdr->frame_control;
+ fc = fc_pos[0] ^ (fc_pos[1] << 8);
+ a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
+ (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
+
+ ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len);
+ data_len -= CCMP_HDR_LEN + (encrypted ? CCMP_MIC_LEN : 0);
+ if (qos_tid & 0x80) {
+ qos_included = 1;
+ qos_tid &= 0x0f;
+ } else
+ qos_included = 0;
+ /* First block, b_0 */
+
+ b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */
+ /* Nonce: QoS Priority | A2 | PN */
+ b_0[1] = qos_tid;
+ memcpy(&b_0[2], hdr->addr2, 6);
+ memcpy(&b_0[8], pn, CCMP_PN_LEN);
+ /* l(m) */
+ b_0[14] = (data_len >> 8) & 0xff;
+ b_0[15] = data_len & 0xff;
+
+
+ /* AAD (extra authenticate-only data) / masked 802.11 header
+ * FC | A1 | A2 | A3 | SC | [A4] | [QC] */
+
+ len_a = a4_included ? 28 : 22;
+ if (qos_included)
+ len_a += 2;
+
+ aad[0] = 0; /* (len_a >> 8) & 0xff; */
+ aad[1] = len_a & 0xff;
+ /* Mask FC: zero subtype b4 b5 b6 */
+ aad[2] = fc_pos[0] & ~(BIT(4) | BIT(5) | BIT(6));
+ /* Retry, PwrMgt, MoreData; set Protected */
+ aad[3] = (fc_pos[1] & ~(BIT(3) | BIT(4) | BIT(5))) | BIT(6);
+ memcpy(&aad[4], &hdr->addr1, 18);
+
+ /* Mask Seq#, leave Frag# */
+ aad[22] = *((u8 *) &hdr->seq_ctrl) & 0x0f;
+ aad[23] = 0;
+ if (a4_included) {
+ memcpy(&aad[24], hdr->addr4, 6);
+ aad[30] = 0;
+ aad[31] = 0;
+ } else
+ memset(&aad[24], 0, 8);
+ if (qos_included) {
+ u8 *dpos = &aad[a4_included ? 30 : 24];
+
+ /* Mask QoS Control field */
+ dpos[0] = qos_tid;
+ dpos[1] = 0;
+ }
+}
+
+
+static inline void ccmp_pn2hdr(u8 *hdr, u8 *pn, int key_id)
+{
+ hdr[0] = pn[5];
+ hdr[1] = pn[4];
+ hdr[2] = 0;
+ hdr[3] = 0x20 | (key_id << 6);
+ hdr[4] = pn[3];
+ hdr[5] = pn[2];
+ hdr[6] = pn[1];
+ hdr[7] = pn[0];
+}
+
+
+static inline int ccmp_hdr2pn(u8 *pn, u8 *hdr)
+{
+ pn[0] = hdr[7];
+ pn[1] = hdr[6];
+ pn[2] = hdr[5];
+ pn[3] = hdr[4];
+ pn[4] = hdr[1];
+ pn[5] = hdr[0];
+ return (hdr[3] >> 6) & 0x03;
+}
+
+
+static int ccmp_encrypt_skb(struct ieee80211_txrx_data *tx,
+ struct sk_buff *skb, int test)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_key *key = tx->key;
+ int hdrlen, len, tailneed;
+ u16 fc;
+ u8 *pos, *pn, *b_0, *aad, *scratch;
+ int i;
+
+ scratch = key->u.ccmp.tx_crypto_buf;
+ b_0 = scratch + 3 * AES_BLOCK_LEN;
+ aad = scratch + 4 * AES_BLOCK_LEN;
+
+ fc = le16_to_cpu(hdr->frame_control);
+ hdrlen = ieee80211_get_hdrlen(fc);
+ len = skb->len - hdrlen;
+
+ if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
+ tailneed = 0;
+ else
+ tailneed = CCMP_MIC_LEN;
+
+ if ((skb_headroom(skb) < CCMP_HDR_LEN ||
+ skb_tailroom(skb) < tailneed)) {
+ I802_DEBUG_INC(tx->local->tx_expand_skb_head);
+ if (unlikely(pskb_expand_head(skb, CCMP_HDR_LEN, tailneed,
+ GFP_ATOMIC)))
+ return -1;
+ }
+
+ pos = skb_push(skb, CCMP_HDR_LEN);
+ memmove(pos, pos + CCMP_HDR_LEN, hdrlen);
+ hdr = (struct ieee80211_hdr *) pos;
+ pos += hdrlen;
+
+ /* PN = PN + 1 */
+ pn = key->u.ccmp.tx_pn;
+
+ for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
+ pn[i]++;
+ if (pn[i])
+ break;
+ }
+
+ ccmp_pn2hdr(pos, pn, key->conf.keyidx);
+
+ if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
+ /* hwaccel - with preallocated room for CCMP header */
+ tx->u.tx.control->key_idx = key->conf.hw_key_idx;
+ return 0;
+ }
+
+ pos += CCMP_HDR_LEN;
+ ccmp_special_blocks(skb, pn, b_0, aad, 0);
+ ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, scratch, b_0, aad, pos, len,
+ pos, skb_put(skb, CCMP_MIC_LEN));
+
+ return 0;
+}
+
+
+ieee80211_txrx_result
+ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
+ u16 fc;
+ struct sk_buff *skb = tx->skb;
+ int test = 0;
+
+ fc = le16_to_cpu(hdr->frame_control);
+
+ if (!WLAN_FC_DATA_PRESENT(fc))
+ return TXRX_CONTINUE;
+
+ tx->u.tx.control->icv_len = CCMP_MIC_LEN;
+ tx->u.tx.control->iv_len = CCMP_HDR_LEN;
+ ieee80211_tx_set_iswep(tx);
+
+ if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
+ !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
+ /* hwaccel - with no need for preallocated room for CCMP "
+ * header or MIC fields */
+ tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
+ return TXRX_CONTINUE;
+ }
+
+ if (ccmp_encrypt_skb(tx, skb, test) < 0)
+ return TXRX_DROP;
+
+ if (tx->u.tx.extra_frag) {
+ int i;
+ for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+ if (ccmp_encrypt_skb(tx, tx->u.tx.extra_frag[i], test)
+ < 0)
+ return TXRX_DROP;
+ }
+ }
+
+ return TXRX_CONTINUE;
+}
+
+
+ieee80211_txrx_result
+ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
+ u16 fc;
+ int hdrlen;
+ struct ieee80211_key *key = rx->key;
+ struct sk_buff *skb = rx->skb;
+ u8 pn[CCMP_PN_LEN];
+ int data_len;
+
+ fc = le16_to_cpu(hdr->frame_control);
+ hdrlen = ieee80211_get_hdrlen(fc);
+
+ if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
+ return TXRX_CONTINUE;
+
+ data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN;
+ if (!rx->sta || data_len < 0)
+ return TXRX_DROP;
+
+ if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
+ (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED))
+ return TXRX_CONTINUE;
+
+ (void) ccmp_hdr2pn(pn, skb->data + hdrlen);
+
+ if (memcmp(pn, key->u.ccmp.rx_pn[rx->u.rx.queue], CCMP_PN_LEN) <= 0) {
+#ifdef CONFIG_MAC80211_DEBUG
+ u8 *ppn = key->u.ccmp.rx_pn[rx->u.rx.queue];
+ printk(KERN_DEBUG "%s: CCMP replay detected for RX frame from "
+ MAC_FMT " (RX PN %02x%02x%02x%02x%02x%02x <= prev. PN "
+ "%02x%02x%02x%02x%02x%02x)\n", rx->dev->name,
+ MAC_ARG(rx->sta->addr),
+ pn[0], pn[1], pn[2], pn[3], pn[4], pn[5],
+ ppn[0], ppn[1], ppn[2], ppn[3], ppn[4], ppn[5]);
+#endif /* CONFIG_MAC80211_DEBUG */
+ key->u.ccmp.replays++;
+ return TXRX_DROP;
+ }
+
+ if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) {
+ /* hardware didn't decrypt/verify MIC */
+ u8 *scratch, *b_0, *aad;
+
+ scratch = key->u.ccmp.rx_crypto_buf;
+ b_0 = scratch + 3 * AES_BLOCK_LEN;
+ aad = scratch + 4 * AES_BLOCK_LEN;
+
+ ccmp_special_blocks(skb, pn, b_0, aad, 1);
+
+ if (ieee80211_aes_ccm_decrypt(
+ key->u.ccmp.tfm, scratch, b_0, aad,
+ skb->data + hdrlen + CCMP_HDR_LEN, data_len,
+ skb->data + skb->len - CCMP_MIC_LEN,
+ skb->data + hdrlen + CCMP_HDR_LEN)) {
+ printk(KERN_DEBUG "%s: CCMP decrypt failed for RX "
+ "frame from " MAC_FMT "\n", rx->dev->name,
+ MAC_ARG(rx->sta->addr));
+ return TXRX_DROP;
+ }
+ }
+
+ memcpy(key->u.ccmp.rx_pn[rx->u.rx.queue], pn, CCMP_PN_LEN);
+
+ /* Remove CCMP header and MIC */
+ skb_trim(skb, skb->len - CCMP_MIC_LEN);
+ memmove(skb->data + CCMP_HDR_LEN, skb->data, hdrlen);
+ skb_pull(skb, CCMP_HDR_LEN);
+
+ return TXRX_CONTINUE;
+}
+
--- /dev/null
+/*
+ * Copyright 2002-2004, Instant802 Networks, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef WPA_H
+#define WPA_H
+
+#include <linux/skbuff.h>
+#include <linux/types.h>
+#include "ieee80211_i.h"
+
+ieee80211_txrx_result
+ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx);
+ieee80211_txrx_result
+ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx);
+
+ieee80211_txrx_result
+ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx);
+ieee80211_txrx_result
+ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx);
+
+ieee80211_txrx_result
+ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx);
+ieee80211_txrx_result
+ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx);
+
+#endif /* WPA_H */
--- /dev/null
+config CFG80211
+ tristate "Improved wireless configuration API"
+
+config NL80211
+ bool "nl80211 new netlink interface support"
+ depends CFG80211
+ default y
+ ---help---
+ This option turns on the new netlink interface
+ (nl80211) support in cfg80211.
+
+ If =n, drivers using mac80211 will be configured via
+ wireless extension support provided by that subsystem.
+
+ If unsure, say Y.
+
+config WIRELESS_EXT
+ bool "Wireless extensions"
+ default n
+ ---help---
+ This option enables the legacy wireless extensions
+ (wireless network interface configuration via ioctls.)
+
+ Wireless extensions will be replaced by cfg80211 and
+ will be required only by legacy drivers that implement
+ wireless extension handlers. This option does not
+ affect the wireless-extension backward compatibility
+ code in cfg80211.
+
+ Say N (if you can) unless you know you need wireless
+ extensions for external modules.
--- /dev/null
+obj-$(CONFIG_CFG80211) += cfg80211.o
+
+cfg80211-y += core.o sysfs.o radiotap.o
+cfg80211-$(CONFIG_NL80211) += nl80211.o
--- /dev/null
+/*
+ * This is the linux wireless configuration interface.
+ *
+ * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ */
+
+#include <linux/if.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/nl80211.h>
+#include <linux/debugfs.h>
+#include <linux/notifier.h>
+#include <linux/device.h>
+#include <net/genetlink.h>
+#include <net/cfg80211.h>
+#include <net/wireless.h>
+#include "nl80211.h"
+#include "core.h"
+#include "sysfs.h"
+
+/* name for sysfs, %d is appended */
+#define PHY_NAME "phy"
+
+MODULE_AUTHOR("Johannes Berg");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("wireless configuration support");
+
+/* RCU might be appropriate here since we usually
+ * only read the list, and that can happen quite
+ * often because we need to do it for each command */
+LIST_HEAD(cfg80211_drv_list);
+DEFINE_MUTEX(cfg80211_drv_mutex);
+static int wiphy_counter;
+
+/* for debugfs */
+static struct dentry *ieee80211_debugfs_dir;
+
+/* requires cfg80211_drv_mutex to be held! */
+static struct cfg80211_registered_device *cfg80211_drv_by_wiphy(int wiphy)
+{
+ struct cfg80211_registered_device *result = NULL, *drv;
+
+ list_for_each_entry(drv, &cfg80211_drv_list, list) {
+ if (drv->idx == wiphy) {
+ result = drv;
+ break;
+ }
+ }
+
+ return result;
+}
+
+/* requires cfg80211_drv_mutex to be held! */
+static struct cfg80211_registered_device *
+__cfg80211_drv_from_info(struct genl_info *info)
+{
+ int ifindex;
+ struct cfg80211_registered_device *bywiphy = NULL, *byifidx = NULL;
+ struct net_device *dev;
+ int err = -EINVAL;
+
+ if (info->attrs[NL80211_ATTR_WIPHY]) {
+ bywiphy = cfg80211_drv_by_wiphy(
+ nla_get_u32(info->attrs[NL80211_ATTR_WIPHY]));
+ err = -ENODEV;
+ }
+
+ if (info->attrs[NL80211_ATTR_IFINDEX]) {
+ ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
+ dev = dev_get_by_index(ifindex);
+ if (dev) {
+ if (dev->ieee80211_ptr)
+ byifidx =
+ wiphy_to_dev(dev->ieee80211_ptr->wiphy);
+ dev_put(dev);
+ }
+ err = -ENODEV;
+ }
+
+ if (bywiphy && byifidx) {
+ if (bywiphy != byifidx)
+ return ERR_PTR(-EINVAL);
+ else
+ return bywiphy; /* == byifidx */
+ }
+ if (bywiphy)
+ return bywiphy;
+
+ if (byifidx)
+ return byifidx;
+
+ return ERR_PTR(err);
+}
+
+struct cfg80211_registered_device *
+cfg80211_get_dev_from_info(struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+
+ mutex_lock(&cfg80211_drv_mutex);
+ drv = __cfg80211_drv_from_info(info);
+
+ /* if it is not an error we grab the lock on
+ * it to assure it won't be going away while
+ * we operate on it */
+ if (!IS_ERR(drv))
+ mutex_lock(&drv->mtx);
+
+ mutex_unlock(&cfg80211_drv_mutex);
+
+ return drv;
+}
+
+struct cfg80211_registered_device *
+cfg80211_get_dev_from_ifindex(int ifindex)
+{
+ struct cfg80211_registered_device *drv = ERR_PTR(-ENODEV);
+ struct net_device *dev;
+
+ mutex_lock(&cfg80211_drv_mutex);
+ dev = dev_get_by_index(ifindex);
+ if (!dev)
+ goto out;
+ if (dev->ieee80211_ptr) {
+ drv = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
+ mutex_lock(&drv->mtx);
+ } else
+ drv = ERR_PTR(-ENODEV);
+ dev_put(dev);
+ out:
+ mutex_unlock(&cfg80211_drv_mutex);
+ return drv;
+}
+
+void cfg80211_put_dev(struct cfg80211_registered_device *drv)
+{
+ BUG_ON(IS_ERR(drv));
+ mutex_unlock(&drv->mtx);
+}
+
+int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
+ char *newname)
+{
+ int idx, taken = -1, result, digits;
+
+ /* prohibit calling the thing phy%d when %d is not its number */
+ sscanf(newname, PHY_NAME "%d%n", &idx, &taken);
+ if (taken == strlen(newname) && idx != rdev->idx) {
+ /* count number of places needed to print idx */
+ digits = 1;
+ while (idx /= 10)
+ digits++;
+ /*
+ * deny the name if it is phy<idx> where <idx> is printed
+ * without leading zeroes. taken == strlen(newname) here
+ */
+ if (taken == strlen(PHY_NAME) + digits)
+ return -EINVAL;
+ }
+
+ /* this will check for collisions */
+ result = device_rename(&rdev->wiphy.dev, newname);
+ if (result)
+ return result;
+
+ if (!debugfs_rename(rdev->wiphy.debugfsdir->d_parent,
+ rdev->wiphy.debugfsdir,
+ rdev->wiphy.debugfsdir->d_parent,
+ newname))
+ printk(KERN_ERR "cfg80211: failed to rename debugfs dir to %s!\n",
+ newname);
+
+ nl80211_notify_dev_rename(rdev);
+
+ return 0;
+}
+
+/* exported functions */
+
+struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
+{
+ struct cfg80211_registered_device *drv;
+ int alloc_size;
+
+ alloc_size = sizeof(*drv) + sizeof_priv;
+
+ drv = kzalloc(alloc_size, GFP_KERNEL);
+ if (!drv)
+ return NULL;
+
+ drv->ops = ops;
+
+ mutex_lock(&cfg80211_drv_mutex);
+
+ drv->idx = wiphy_counter;
+
+ /* now increase counter for the next device unless
+ * it has wrapped previously */
+ if (wiphy_counter >= 0)
+ wiphy_counter++;
+
+ mutex_unlock(&cfg80211_drv_mutex);
+
+ if (unlikely(drv->idx < 0)) {
+ /* ugh, wrapped! */
+ kfree(drv);
+ return NULL;
+ }
+
+ /* give it a proper name */
+ snprintf(drv->wiphy.dev.bus_id, BUS_ID_SIZE,
+ PHY_NAME "%d", drv->idx);
+
+ mutex_init(&drv->mtx);
+ mutex_init(&drv->devlist_mtx);
+ INIT_LIST_HEAD(&drv->netdev_list);
+
+ device_initialize(&drv->wiphy.dev);
+ drv->wiphy.dev.class = &ieee80211_class;
+ drv->wiphy.dev.platform_data = drv;
+
+ return &drv->wiphy;
+}
+EXPORT_SYMBOL(wiphy_new);
+
+int wiphy_register(struct wiphy *wiphy)
+{
+ struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
+ int res;
+
+ mutex_lock(&cfg80211_drv_mutex);
+
+ res = device_add(&drv->wiphy.dev);
+ if (res)
+ goto out_unlock;
+
+ list_add(&drv->list, &cfg80211_drv_list);
+
+ /* add to debugfs */
+ drv->wiphy.debugfsdir =
+ debugfs_create_dir(wiphy_name(&drv->wiphy),
+ ieee80211_debugfs_dir);
+
+ res = 0;
+out_unlock:
+ mutex_unlock(&cfg80211_drv_mutex);
+ return res;
+}
+EXPORT_SYMBOL(wiphy_register);
+
+void wiphy_unregister(struct wiphy *wiphy)
+{
+ struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
+
+ /* protect the device list */
+ mutex_lock(&cfg80211_drv_mutex);
+
+ BUG_ON(!list_empty(&drv->netdev_list));
+
+ /*
+ * Try to grab drv->mtx. If a command is still in progress,
+ * hopefully the driver will refuse it since it's tearing
+ * down the device already. We wait for this command to complete
+ * before unlinking the item from the list.
+ * Note: as codified by the BUG_ON above we cannot get here if
+ * a virtual interface is still associated. Hence, we can only
+ * get to lock contention here if userspace issues a command
+ * that identified the hardware by wiphy index.
+ */
+ mutex_lock(&drv->mtx);
+ /* unlock again before freeing */
+ mutex_unlock(&drv->mtx);
+
+ list_del(&drv->list);
+ device_del(&drv->wiphy.dev);
+ debugfs_remove(drv->wiphy.debugfsdir);
+
+ mutex_unlock(&cfg80211_drv_mutex);
+}
+EXPORT_SYMBOL(wiphy_unregister);
+
+void cfg80211_dev_free(struct cfg80211_registered_device *drv)
+{
+ mutex_destroy(&drv->mtx);
+ mutex_destroy(&drv->devlist_mtx);
+ kfree(drv);
+}
+
+void wiphy_free(struct wiphy *wiphy)
+{
+ put_device(&wiphy->dev);
+}
+EXPORT_SYMBOL(wiphy_free);
+
+static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
+ unsigned long state,
+ void *ndev)
+{
+ struct net_device *dev = ndev;
+ struct cfg80211_registered_device *rdev;
+
+ if (!dev->ieee80211_ptr)
+ return 0;
+
+ rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
+
+ switch (state) {
+ case NETDEV_REGISTER:
+ mutex_lock(&rdev->devlist_mtx);
+ list_add(&dev->ieee80211_ptr->list, &rdev->netdev_list);
+ if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj,
+ "phy80211")) {
+ printk(KERN_ERR "wireless: failed to add phy80211 "
+ "symlink to netdev!\n");
+ }
+ dev->ieee80211_ptr->netdev = dev;
+ mutex_unlock(&rdev->devlist_mtx);
+ break;
+ case NETDEV_UNREGISTER:
+ mutex_lock(&rdev->devlist_mtx);
+ if (!list_empty(&dev->ieee80211_ptr->list)) {
+ sysfs_remove_link(&dev->dev.kobj, "phy80211");
+ list_del_init(&dev->ieee80211_ptr->list);
+ }
+ mutex_unlock(&rdev->devlist_mtx);
+ break;
+ }
+
+ return 0;
+}
+
+static struct notifier_block cfg80211_netdev_notifier = {
+ .notifier_call = cfg80211_netdev_notifier_call,
+};
+
+static int cfg80211_init(void)
+{
+ int err = wiphy_sysfs_init();
+ if (err)
+ goto out_fail_sysfs;
+
+ err = register_netdevice_notifier(&cfg80211_netdev_notifier);
+ if (err)
+ goto out_fail_notifier;
+
+ err = nl80211_init();
+ if (err)
+ goto out_fail_nl80211;
+
+ ieee80211_debugfs_dir = debugfs_create_dir("ieee80211", NULL);
+
+ return 0;
+
+out_fail_nl80211:
+ unregister_netdevice_notifier(&cfg80211_netdev_notifier);
+out_fail_notifier:
+ wiphy_sysfs_exit();
+out_fail_sysfs:
+ return err;
+}
+subsys_initcall(cfg80211_init);
+
+static void cfg80211_exit(void)
+{
+ debugfs_remove(ieee80211_debugfs_dir);
+ nl80211_exit();
+ unregister_netdevice_notifier(&cfg80211_netdev_notifier);
+ wiphy_sysfs_exit();
+}
+module_exit(cfg80211_exit);
--- /dev/null
+/*
+ * Wireless configuration interface internals.
+ *
+ * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ */
+#ifndef __NET_WIRELESS_CORE_H
+#define __NET_WIRELESS_CORE_H
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <net/genetlink.h>
+#include <net/wireless.h>
+#include <net/cfg80211.h>
+
+struct cfg80211_registered_device {
+ struct cfg80211_ops *ops;
+ struct list_head list;
+ /* we hold this mutex during any call so that
+ * we cannot do multiple calls at once, and also
+ * to avoid the deregister call to proceed while
+ * any call is in progress */
+ struct mutex mtx;
+
+ /* wiphy index, internal only */
+ int idx;
+
+ /* associate netdev list */
+ struct mutex devlist_mtx;
+ struct list_head netdev_list;
+
+ /* must be last because of the way we do wiphy_priv(),
+ * and it should at least be aligned to NETDEV_ALIGN */
+ struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
+};
+
+static inline
+struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
+{
+ BUG_ON(!wiphy);
+ return container_of(wiphy, struct cfg80211_registered_device, wiphy);
+}
+
+extern struct mutex cfg80211_drv_mutex;
+extern struct list_head cfg80211_drv_list;
+
+/*
+ * This function returns a pointer to the driver
+ * that the genl_info item that is passed refers to.
+ * If successful, it returns non-NULL and also locks
+ * the driver's mutex!
+ *
+ * This means that you need to call cfg80211_put_dev()
+ * before being allowed to acquire &cfg80211_drv_mutex!
+ *
+ * This is necessary because we need to lock the global
+ * mutex to get an item off the list safely, and then
+ * we lock the drv mutex so it doesn't go away under us.
+ *
+ * We don't want to keep cfg80211_drv_mutex locked
+ * for all the time in order to allow requests on
+ * other interfaces to go through at the same time.
+ *
+ * The result of this can be a PTR_ERR and hence must
+ * be checked with IS_ERR() for errors.
+ */
+extern struct cfg80211_registered_device *
+cfg80211_get_dev_from_info(struct genl_info *info);
+
+/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
+extern struct cfg80211_registered_device *
+cfg80211_get_dev_from_ifindex(int ifindex);
+
+extern void cfg80211_put_dev(struct cfg80211_registered_device *drv);
+
+/* free object */
+extern void cfg80211_dev_free(struct cfg80211_registered_device *drv);
+
+extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv,
+ char *newname);
+
+#endif /* __NET_WIRELESS_CORE_H */
--- /dev/null
+/*
+ * This is the new netlink-based wireless configuration interface.
+ *
+ * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ */
+
+#include <linux/if.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/if_ether.h>
+#include <linux/ieee80211.h>
+#include <linux/nl80211.h>
+#include <linux/rtnetlink.h>
+#include <linux/netlink.h>
+#include <net/genetlink.h>
+#include <net/cfg80211.h>
+#include "core.h"
+#include "nl80211.h"
+
+/* the netlink family */
+static struct genl_family nl80211_fam = {
+ .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
+ .name = "nl80211", /* have users key off the name instead */
+ .hdrsize = 0, /* no private header */
+ .version = 1, /* no particular meaning now */
+ .maxattr = NL80211_ATTR_MAX,
+};
+
+/* internal helper: get drv and dev */
+static int get_drv_dev_by_info_ifindex(struct genl_info *info,
+ struct cfg80211_registered_device **drv,
+ struct net_device **dev)
+{
+ int ifindex;
+
+ if (!info->attrs[NL80211_ATTR_IFINDEX])
+ return -EINVAL;
+
+ ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
+ *dev = dev_get_by_index(ifindex);
+ if (!*dev)
+ return -ENODEV;
+
+ *drv = cfg80211_get_dev_from_ifindex(ifindex);
+ if (IS_ERR(*drv)) {
+ dev_put(*dev);
+ return PTR_ERR(*drv);
+ }
+
+ return 0;
+}
+
+/* policy for the attributes */
+static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
+ [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
+ [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
+ .len = BUS_ID_SIZE-1 },
+
+ [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
+ [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
+ [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
+};
+
+/* message building helper */
+static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
+ int flags, u8 cmd)
+{
+ /* since there is no private header just add the generic one */
+ return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
+}
+
+/* netlink command implementations */
+
+static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
+ struct cfg80211_registered_device *dev)
+{
+ void *hdr;
+
+ hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
+ if (!hdr)
+ return -1;
+
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
+ NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
+ return genlmsg_end(msg, hdr);
+
+ nla_put_failure:
+ return genlmsg_cancel(msg, hdr);
+}
+
+static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ int idx = 0;
+ int start = cb->args[0];
+ struct cfg80211_registered_device *dev;
+
+ mutex_lock(&cfg80211_drv_mutex);
+ list_for_each_entry(dev, &cfg80211_drv_list, list) {
+ if (++idx < start)
+ continue;
+ if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq, NLM_F_MULTI,
+ dev) < 0)
+ break;
+ }
+ mutex_unlock(&cfg80211_drv_mutex);
+
+ cb->args[0] = idx;
+
+ return skb->len;
+}
+
+static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
+{
+ struct sk_buff *msg;
+ struct cfg80211_registered_device *dev;
+
+ dev = cfg80211_get_dev_from_info(info);
+ if (IS_ERR(dev))
+ return PTR_ERR(dev);
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ goto out_err;
+
+ if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
+ goto out_free;
+
+ cfg80211_put_dev(dev);
+
+ return genlmsg_unicast(msg, info->snd_pid);
+
+ out_free:
+ nlmsg_free(msg);
+ out_err:
+ cfg80211_put_dev(dev);
+ return -ENOBUFS;
+}
+
+static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev;
+ int result;
+
+ if (!info->attrs[NL80211_ATTR_WIPHY_NAME])
+ return -EINVAL;
+
+ rdev = cfg80211_get_dev_from_info(info);
+ if (IS_ERR(rdev))
+ return PTR_ERR(rdev);
+
+ result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
+
+ cfg80211_put_dev(rdev);
+ return result;
+}
+
+
+static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
+ struct net_device *dev)
+{
+ void *hdr;
+
+ hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
+ if (!hdr)
+ return -1;
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
+ NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
+ /* TODO: interface type */
+ return genlmsg_end(msg, hdr);
+
+ nla_put_failure:
+ return genlmsg_cancel(msg, hdr);
+}
+
+static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ int wp_idx = 0;
+ int if_idx = 0;
+ int wp_start = cb->args[0];
+ int if_start = cb->args[1];
+ struct cfg80211_registered_device *dev;
+ struct wireless_dev *wdev;
+
+ mutex_lock(&cfg80211_drv_mutex);
+ list_for_each_entry(dev, &cfg80211_drv_list, list) {
+ if (++wp_idx < wp_start)
+ continue;
+ if_idx = 0;
+
+ mutex_lock(&dev->devlist_mtx);
+ list_for_each_entry(wdev, &dev->netdev_list, list) {
+ if (++if_idx < if_start)
+ continue;
+ if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq, NLM_F_MULTI,
+ wdev->netdev) < 0)
+ break;
+ }
+ mutex_unlock(&dev->devlist_mtx);
+ }
+ mutex_unlock(&cfg80211_drv_mutex);
+
+ cb->args[0] = wp_idx;
+ cb->args[1] = if_idx;
+
+ return skb->len;
+}
+
+static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
+{
+ struct sk_buff *msg;
+ struct cfg80211_registered_device *dev;
+ struct net_device *netdev;
+ int err;
+
+ err = get_drv_dev_by_info_ifindex(info, &dev, &netdev);
+ if (err)
+ return err;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ goto out_err;
+
+ if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0)
+ goto out_free;
+
+ dev_put(netdev);
+ cfg80211_put_dev(dev);
+
+ return genlmsg_unicast(msg, info->snd_pid);
+
+ out_free:
+ nlmsg_free(msg);
+ out_err:
+ dev_put(netdev);
+ cfg80211_put_dev(dev);
+ return -ENOBUFS;
+}
+
+static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ int err, ifindex;
+ enum nl80211_iftype type;
+ struct net_device *dev;
+
+ if (info->attrs[NL80211_ATTR_IFTYPE]) {
+ type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
+ if (type > NL80211_IFTYPE_MAX)
+ return -EINVAL;
+ } else
+ return -EINVAL;
+
+ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
+ if (err)
+ return err;
+ ifindex = dev->ifindex;
+ dev_put(dev);
+
+ if (!drv->ops->change_virtual_intf) {
+ err = -EOPNOTSUPP;
+ goto unlock;
+ }
+
+ rtnl_lock();
+ err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, type);
+ rtnl_unlock();
+
+ unlock:
+ cfg80211_put_dev(drv);
+ return err;
+}
+
+static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ int err;
+ enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
+
+ if (!info->attrs[NL80211_ATTR_IFNAME])
+ return -EINVAL;
+
+ if (info->attrs[NL80211_ATTR_IFTYPE]) {
+ type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
+ if (type > NL80211_IFTYPE_MAX)
+ return -EINVAL;
+ }
+
+ drv = cfg80211_get_dev_from_info(info);
+ if (IS_ERR(drv))
+ return PTR_ERR(drv);
+
+ if (!drv->ops->add_virtual_intf) {
+ err = -EOPNOTSUPP;
+ goto unlock;
+ }
+
+ rtnl_lock();
+ err = drv->ops->add_virtual_intf(&drv->wiphy,
+ nla_data(info->attrs[NL80211_ATTR_IFNAME]), type);
+ rtnl_unlock();
+
+ unlock:
+ cfg80211_put_dev(drv);
+ return err;
+}
+
+static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ int ifindex, err;
+ struct net_device *dev;
+
+ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
+ if (err)
+ return err;
+ ifindex = dev->ifindex;
+ dev_put(dev);
+
+ if (!drv->ops->del_virtual_intf) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ rtnl_lock();
+ err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
+ rtnl_unlock();
+
+ out:
+ cfg80211_put_dev(drv);
+ return err;
+}
+
+static struct genl_ops nl80211_ops[] = {
+ {
+ .cmd = NL80211_CMD_GET_WIPHY,
+ .doit = nl80211_get_wiphy,
+ .dumpit = nl80211_dump_wiphy,
+ .policy = nl80211_policy,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = NL80211_CMD_SET_WIPHY,
+ .doit = nl80211_set_wiphy,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_GET_INTERFACE,
+ .doit = nl80211_get_interface,
+ .dumpit = nl80211_dump_interface,
+ .policy = nl80211_policy,
+ /* can be retrieved by unprivileged users */
+ },
+ {
+ .cmd = NL80211_CMD_SET_INTERFACE,
+ .doit = nl80211_set_interface,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_NEW_INTERFACE,
+ .doit = nl80211_new_interface,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_DEL_INTERFACE,
+ .doit = nl80211_del_interface,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+};
+
+/* multicast groups */
+static struct genl_multicast_group nl80211_config_mcgrp = {
+ .name = "config",
+};
+
+/* notification functions */
+
+void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
+{
+ struct sk_buff *msg;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ return;
+
+ if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
+}
+
+/* initialisation/exit functions */
+
+int nl80211_init(void)
+{
+ int err, i;
+
+ err = genl_register_family(&nl80211_fam);
+ if (err)
+ return err;
+
+ for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
+ err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
+ if (err)
+ goto err_out;
+ }
+
+ err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
+ if (err)
+ goto err_out;
+
+ return 0;
+ err_out:
+ genl_unregister_family(&nl80211_fam);
+ return err;
+}
+
+void nl80211_exit(void)
+{
+ genl_unregister_family(&nl80211_fam);
+}
--- /dev/null
+#ifndef __NET_WIRELESS_NL80211_H
+#define __NET_WIRELESS_NL80211_H
+
+#include "core.h"
+
+#ifdef CONFIG_NL80211
+extern int nl80211_init(void);
+extern void nl80211_exit(void);
+extern void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev);
+#else
+static inline int nl80211_init(void)
+{
+ return 0;
+}
+static inline void nl80211_exit(void)
+{
+}
+static inline void nl80211_notify_dev_rename(
+ struct cfg80211_registered_device *rdev)
+{
+}
+#endif /* CONFIG_NL80211 */
+
+#endif /* __NET_WIRELESS_NL80211_H */
--- /dev/null
+/*
+ * Radiotap parser
+ *
+ * Copyright 2007 Andy Green <andy@warmcat.com>
+ */
+
+#include <net/cfg80211.h>
+#include <net/ieee80211_radiotap.h>
+#include <asm/unaligned.h>
+
+/* function prototypes and related defs are in include/net/cfg80211.h */
+
+/**
+ * ieee80211_radiotap_iterator_init - radiotap parser iterator initialization
+ * @iterator: radiotap_iterator to initialize
+ * @radiotap_header: radiotap header to parse
+ * @max_length: total length we can parse into (eg, whole packet length)
+ *
+ * Returns: 0 or a negative error code if there is a problem.
+ *
+ * This function initializes an opaque iterator struct which can then
+ * be passed to ieee80211_radiotap_iterator_next() to visit every radiotap
+ * argument which is present in the header. It knows about extended
+ * present headers and handles them.
+ *
+ * How to use:
+ * call __ieee80211_radiotap_iterator_init() to init a semi-opaque iterator
+ * struct ieee80211_radiotap_iterator (no need to init the struct beforehand)
+ * checking for a good 0 return code. Then loop calling
+ * __ieee80211_radiotap_iterator_next()... it returns either 0,
+ * -ENOENT if there are no more args to parse, or -EINVAL if there is a problem.
+ * The iterator's @this_arg member points to the start of the argument
+ * associated with the current argument index that is present, which can be
+ * found in the iterator's @this_arg_index member. This arg index corresponds
+ * to the IEEE80211_RADIOTAP_... defines.
+ *
+ * Radiotap header length:
+ * You can find the CPU-endian total radiotap header length in
+ * iterator->max_length after executing ieee80211_radiotap_iterator_init()
+ * successfully.
+ *
+ * Alignment Gotcha:
+ * You must take care when dereferencing iterator.this_arg
+ * for multibyte types... the pointer is not aligned. Use
+ * get_unaligned((type *)iterator.this_arg) to dereference
+ * iterator.this_arg for type "type" safely on all arches.
+ *
+ * Example code:
+ * See Documentation/networking/radiotap-headers.txt
+ */
+
+int ieee80211_radiotap_iterator_init(
+ struct ieee80211_radiotap_iterator *iterator,
+ struct ieee80211_radiotap_header *radiotap_header,
+ int max_length)
+{
+ /* Linux only supports version 0 radiotap format */
+ if (radiotap_header->it_version)
+ return -EINVAL;
+
+ /* sanity check for allowed length and radiotap length field */
+ if (max_length < le16_to_cpu(get_unaligned(&radiotap_header->it_len)))
+ return -EINVAL;
+
+ iterator->rtheader = radiotap_header;
+ iterator->max_length = le16_to_cpu(get_unaligned(
+ &radiotap_header->it_len));
+ iterator->arg_index = 0;
+ iterator->bitmap_shifter = le32_to_cpu(get_unaligned(
+ &radiotap_header->it_present));
+ iterator->arg = (u8 *)radiotap_header + sizeof(*radiotap_header);
+ iterator->this_arg = NULL;
+
+ /* find payload start allowing for extended bitmap(s) */
+
+ if (unlikely(iterator->bitmap_shifter & (1<<IEEE80211_RADIOTAP_EXT))) {
+ while (le32_to_cpu(get_unaligned((__le32 *)iterator->arg)) &
+ (1<<IEEE80211_RADIOTAP_EXT)) {
+ iterator->arg += sizeof(u32);
+
+ /*
+ * check for insanity where the present bitmaps
+ * keep claiming to extend up to or even beyond the
+ * stated radiotap header length
+ */
+
+ if (((ulong)iterator->arg -
+ (ulong)iterator->rtheader) > iterator->max_length)
+ return -EINVAL;
+ }
+
+ iterator->arg += sizeof(u32);
+
+ /*
+ * no need to check again for blowing past stated radiotap
+ * header length, because ieee80211_radiotap_iterator_next
+ * checks it before it is dereferenced
+ */
+ }
+
+ /* we are all initialized happily */
+
+ return 0;
+}
+EXPORT_SYMBOL(ieee80211_radiotap_iterator_init);
+
+
+/**
+ * ieee80211_radiotap_iterator_next - return next radiotap parser iterator arg
+ * @iterator: radiotap_iterator to move to next arg (if any)
+ *
+ * Returns: 0 if there is an argument to handle,
+ * -ENOENT if there are no more args or -EINVAL
+ * if there is something else wrong.
+ *
+ * This function provides the next radiotap arg index (IEEE80211_RADIOTAP_*)
+ * in @this_arg_index and sets @this_arg to point to the
+ * payload for the field. It takes care of alignment handling and extended
+ * present fields. @this_arg can be changed by the caller (eg,
+ * incremented to move inside a compound argument like
+ * IEEE80211_RADIOTAP_CHANNEL). The args pointed to are in
+ * little-endian format whatever the endianess of your CPU.
+ *
+ * Alignment Gotcha:
+ * You must take care when dereferencing iterator.this_arg
+ * for multibyte types... the pointer is not aligned. Use
+ * get_unaligned((type *)iterator.this_arg) to dereference
+ * iterator.this_arg for type "type" safely on all arches.
+ */
+
+int ieee80211_radiotap_iterator_next(
+ struct ieee80211_radiotap_iterator *iterator)
+{
+
+ /*
+ * small length lookup table for all radiotap types we heard of
+ * starting from b0 in the bitmap, so we can walk the payload
+ * area of the radiotap header
+ *
+ * There is a requirement to pad args, so that args
+ * of a given length must begin at a boundary of that length
+ * -- but note that compound args are allowed (eg, 2 x u16
+ * for IEEE80211_RADIOTAP_CHANNEL) so total arg length is not
+ * a reliable indicator of alignment requirement.
+ *
+ * upper nybble: content alignment for arg
+ * lower nybble: content length for arg
+ */
+
+ static const u8 rt_sizes[] = {
+ [IEEE80211_RADIOTAP_TSFT] = 0x88,
+ [IEEE80211_RADIOTAP_FLAGS] = 0x11,
+ [IEEE80211_RADIOTAP_RATE] = 0x11,
+ [IEEE80211_RADIOTAP_CHANNEL] = 0x24,
+ [IEEE80211_RADIOTAP_FHSS] = 0x22,
+ [IEEE80211_RADIOTAP_DBM_ANTSIGNAL] = 0x11,
+ [IEEE80211_RADIOTAP_DBM_ANTNOISE] = 0x11,
+ [IEEE80211_RADIOTAP_LOCK_QUALITY] = 0x22,
+ [IEEE80211_RADIOTAP_TX_ATTENUATION] = 0x22,
+ [IEEE80211_RADIOTAP_DB_TX_ATTENUATION] = 0x22,
+ [IEEE80211_RADIOTAP_DBM_TX_POWER] = 0x11,
+ [IEEE80211_RADIOTAP_ANTENNA] = 0x11,
+ [IEEE80211_RADIOTAP_DB_ANTSIGNAL] = 0x11,
+ [IEEE80211_RADIOTAP_DB_ANTNOISE] = 0x11,
+ [IEEE80211_RADIOTAP_RX_FLAGS] = 0x22,
+ [IEEE80211_RADIOTAP_TX_FLAGS] = 0x22,
+ [IEEE80211_RADIOTAP_RTS_RETRIES] = 0x11,
+ [IEEE80211_RADIOTAP_DATA_RETRIES] = 0x11,
+ /*
+ * add more here as they are defined in
+ * include/net/ieee80211_radiotap.h
+ */
+ };
+
+ /*
+ * for every radiotap entry we can at
+ * least skip (by knowing the length)...
+ */
+
+ while (iterator->arg_index < sizeof(rt_sizes)) {
+ int hit = 0;
+ int pad;
+
+ if (!(iterator->bitmap_shifter & 1))
+ goto next_entry; /* arg not present */
+
+ /*
+ * arg is present, account for alignment padding
+ * 8-bit args can be at any alignment
+ * 16-bit args must start on 16-bit boundary
+ * 32-bit args must start on 32-bit boundary
+ * 64-bit args must start on 64-bit boundary
+ *
+ * note that total arg size can differ from alignment of
+ * elements inside arg, so we use upper nybble of length
+ * table to base alignment on
+ *
+ * also note: these alignments are ** relative to the
+ * start of the radiotap header **. There is no guarantee
+ * that the radiotap header itself is aligned on any
+ * kind of boundary.
+ *
+ * the above is why get_unaligned() is used to dereference
+ * multibyte elements from the radiotap area
+ */
+
+ pad = (((ulong)iterator->arg) -
+ ((ulong)iterator->rtheader)) &
+ ((rt_sizes[iterator->arg_index] >> 4) - 1);
+
+ if (pad)
+ iterator->arg +=
+ (rt_sizes[iterator->arg_index] >> 4) - pad;
+
+ /*
+ * this is what we will return to user, but we need to
+ * move on first so next call has something fresh to test
+ */
+ iterator->this_arg_index = iterator->arg_index;
+ iterator->this_arg = iterator->arg;
+ hit = 1;
+
+ /* internally move on the size of this arg */
+ iterator->arg += rt_sizes[iterator->arg_index] & 0x0f;
+
+ /*
+ * check for insanity where we are given a bitmap that
+ * claims to have more arg content than the length of the
+ * radiotap section. We will normally end up equalling this
+ * max_length on the last arg, never exceeding it.
+ */
+
+ if (((ulong)iterator->arg - (ulong)iterator->rtheader) >
+ iterator->max_length)
+ return -EINVAL;
+
+ next_entry:
+ iterator->arg_index++;
+ if (unlikely((iterator->arg_index & 31) == 0)) {
+ /* completed current u32 bitmap */
+ if (iterator->bitmap_shifter & 1) {
+ /* b31 was set, there is more */
+ /* move to next u32 bitmap */
+ iterator->bitmap_shifter = le32_to_cpu(
+ get_unaligned(iterator->next_bitmap));
+ iterator->next_bitmap++;
+ } else
+ /* no more bitmaps: end */
+ iterator->arg_index = sizeof(rt_sizes);
+ } else /* just try the next bit */
+ iterator->bitmap_shifter >>= 1;
+
+ /* if we found a valid arg earlier, return it now */
+ if (hit)
+ return 0;
+ }
+
+ /* we don't know how to handle any more args, we're done */
+ return -ENOENT;
+}
+EXPORT_SYMBOL(ieee80211_radiotap_iterator_next);
--- /dev/null
+/*
+ * This file provides /sys/class/ieee80211/<wiphy name>/
+ * and some default attributes.
+ *
+ * Copyright 2005-2006 Jiri Benc <jbenc@suse.cz>
+ * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This file is GPLv2 as found in COPYING.
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/nl80211.h>
+#include <linux/rtnetlink.h>
+#include <net/cfg80211.h>
+#include "sysfs.h"
+#include "core.h"
+
+static inline struct cfg80211_registered_device *dev_to_rdev(
+ struct device *dev)
+{
+ return container_of(dev, struct cfg80211_registered_device, wiphy.dev);
+}
+
+static ssize_t _show_index(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%d\n", dev_to_rdev(dev)->idx);
+}
+
+static ssize_t _show_permaddr(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned char *addr = dev_to_rdev(dev)->wiphy.perm_addr;
+
+ return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
+ addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
+}
+
+static struct device_attribute ieee80211_dev_attrs[] = {
+ __ATTR(index, S_IRUGO, _show_index, NULL),
+ __ATTR(macaddress, S_IRUGO, _show_permaddr, NULL),
+ {}
+};
+
+static void wiphy_dev_release(struct device *dev)
+{
+ struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
+
+ cfg80211_dev_free(rdev);
+}
+
+#ifdef CONFIG_HOTPLUG
+static int wiphy_uevent(struct device *dev, char **envp,
+ int num_envp, char *buf, int size)
+{
+ /* TODO, we probably need stuff here */
+ return 0;
+}
+#endif
+
+struct class ieee80211_class = {
+ .name = "ieee80211",
+ .owner = THIS_MODULE,
+ .dev_release = wiphy_dev_release,
+ .dev_attrs = ieee80211_dev_attrs,
+#ifdef CONFIG_HOTPLUG
+ .dev_uevent = wiphy_uevent,
+#endif
+};
+
+int wiphy_sysfs_init(void)
+{
+ return class_register(&ieee80211_class);
+}
+
+void wiphy_sysfs_exit(void)
+{
+ class_unregister(&ieee80211_class);
+}
--- /dev/null
+#ifndef __WIRELESS_SYSFS_H
+#define __WIRELESS_SYSFS_H
+
+extern int wiphy_sysfs_init(void);
+extern void wiphy_sysfs_exit(void);
+
+extern struct class ieee80211_class;
+
+#endif /* __WIRELESS_SYSFS_H */
+++ /dev/null
-config CFG80211
- tristate "Improved wireless configuration API"
-
-config NL80211
- bool "nl80211 new netlink interface support"
- depends CFG80211
- default y
- ---help---
- This option turns on the new netlink interface
- (nl80211) support in cfg80211.
-
- If =n, drivers using mac80211 will be configured via
- wireless extension support provided by that subsystem.
-
- If unsure, say Y.
-
-config WIRELESS_EXT
- bool "Wireless extensions"
- default n
- ---help---
- This option enables the legacy wireless extensions
- (wireless network interface configuration via ioctls.)
-
- Wireless extensions will be replaced by cfg80211 and
- will be required only by legacy drivers that implement
- wireless extension handlers. This option does not
- affect the wireless-extension backward compatibility
- code in cfg80211.
-
- Say N (if you can) unless you know you need wireless
- extensions for external modules.
+++ /dev/null
-obj-$(CONFIG_CFG80211) += cfg80211.o
-
-cfg80211-y += core.o sysfs.o radiotap.o
-cfg80211-$(CONFIG_NL80211) += nl80211.o
+++ /dev/null
-/*
- * This is the linux wireless configuration interface.
- *
- * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
- */
-
-#include <linux/if.h>
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/mutex.h>
-#include <linux/list.h>
-#include <linux/nl80211.h>
-#include <linux/debugfs.h>
-#include <linux/notifier.h>
-#include <linux/device.h>
-#include <net/genetlink.h>
-#include <net/cfg80211.h>
-#include <net/wireless.h>
-#include "nl80211.h"
-#include "core.h"
-#include "sysfs.h"
-
-/* name for sysfs, %d is appended */
-#define PHY_NAME "phy"
-
-MODULE_AUTHOR("Johannes Berg");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("wireless configuration support");
-
-/* RCU might be appropriate here since we usually
- * only read the list, and that can happen quite
- * often because we need to do it for each command */
-LIST_HEAD(cfg80211_drv_list);
-DEFINE_MUTEX(cfg80211_drv_mutex);
-static int wiphy_counter;
-
-/* for debugfs */
-static struct dentry *ieee80211_debugfs_dir;
-
-/* requires cfg80211_drv_mutex to be held! */
-static struct cfg80211_registered_device *cfg80211_drv_by_wiphy(int wiphy)
-{
- struct cfg80211_registered_device *result = NULL, *drv;
-
- list_for_each_entry(drv, &cfg80211_drv_list, list) {
- if (drv->idx == wiphy) {
- result = drv;
- break;
- }
- }
-
- return result;
-}
-
-/* requires cfg80211_drv_mutex to be held! */
-static struct cfg80211_registered_device *
-__cfg80211_drv_from_info(struct genl_info *info)
-{
- int ifindex;
- struct cfg80211_registered_device *bywiphy = NULL, *byifidx = NULL;
- struct net_device *dev;
- int err = -EINVAL;
-
- if (info->attrs[NL80211_ATTR_WIPHY]) {
- bywiphy = cfg80211_drv_by_wiphy(
- nla_get_u32(info->attrs[NL80211_ATTR_WIPHY]));
- err = -ENODEV;
- }
-
- if (info->attrs[NL80211_ATTR_IFINDEX]) {
- ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
- dev = dev_get_by_index(ifindex);
- if (dev) {
- if (dev->ieee80211_ptr)
- byifidx =
- wiphy_to_dev(dev->ieee80211_ptr->wiphy);
- dev_put(dev);
- }
- err = -ENODEV;
- }
-
- if (bywiphy && byifidx) {
- if (bywiphy != byifidx)
- return ERR_PTR(-EINVAL);
- else
- return bywiphy; /* == byifidx */
- }
- if (bywiphy)
- return bywiphy;
-
- if (byifidx)
- return byifidx;
-
- return ERR_PTR(err);
-}
-
-struct cfg80211_registered_device *
-cfg80211_get_dev_from_info(struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
-
- mutex_lock(&cfg80211_drv_mutex);
- drv = __cfg80211_drv_from_info(info);
-
- /* if it is not an error we grab the lock on
- * it to assure it won't be going away while
- * we operate on it */
- if (!IS_ERR(drv))
- mutex_lock(&drv->mtx);
-
- mutex_unlock(&cfg80211_drv_mutex);
-
- return drv;
-}
-
-struct cfg80211_registered_device *
-cfg80211_get_dev_from_ifindex(int ifindex)
-{
- struct cfg80211_registered_device *drv = ERR_PTR(-ENODEV);
- struct net_device *dev;
-
- mutex_lock(&cfg80211_drv_mutex);
- dev = dev_get_by_index(ifindex);
- if (!dev)
- goto out;
- if (dev->ieee80211_ptr) {
- drv = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
- mutex_lock(&drv->mtx);
- } else
- drv = ERR_PTR(-ENODEV);
- dev_put(dev);
- out:
- mutex_unlock(&cfg80211_drv_mutex);
- return drv;
-}
-
-void cfg80211_put_dev(struct cfg80211_registered_device *drv)
-{
- BUG_ON(IS_ERR(drv));
- mutex_unlock(&drv->mtx);
-}
-
-int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
- char *newname)
-{
- int idx, taken = -1, result, digits;
-
- /* prohibit calling the thing phy%d when %d is not its number */
- sscanf(newname, PHY_NAME "%d%n", &idx, &taken);
- if (taken == strlen(newname) && idx != rdev->idx) {
- /* count number of places needed to print idx */
- digits = 1;
- while (idx /= 10)
- digits++;
- /*
- * deny the name if it is phy<idx> where <idx> is printed
- * without leading zeroes. taken == strlen(newname) here
- */
- if (taken == strlen(PHY_NAME) + digits)
- return -EINVAL;
- }
-
- /* this will check for collisions */
- result = device_rename(&rdev->wiphy.dev, newname);
- if (result)
- return result;
-
- if (!debugfs_rename(rdev->wiphy.debugfsdir->d_parent,
- rdev->wiphy.debugfsdir,
- rdev->wiphy.debugfsdir->d_parent,
- newname))
- printk(KERN_ERR "cfg80211: failed to rename debugfs dir to %s!\n",
- newname);
-
- nl80211_notify_dev_rename(rdev);
-
- return 0;
-}
-
-/* exported functions */
-
-struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
-{
- struct cfg80211_registered_device *drv;
- int alloc_size;
-
- alloc_size = sizeof(*drv) + sizeof_priv;
-
- drv = kzalloc(alloc_size, GFP_KERNEL);
- if (!drv)
- return NULL;
-
- drv->ops = ops;
-
- mutex_lock(&cfg80211_drv_mutex);
-
- drv->idx = wiphy_counter;
-
- /* now increase counter for the next device unless
- * it has wrapped previously */
- if (wiphy_counter >= 0)
- wiphy_counter++;
-
- mutex_unlock(&cfg80211_drv_mutex);
-
- if (unlikely(drv->idx < 0)) {
- /* ugh, wrapped! */
- kfree(drv);
- return NULL;
- }
-
- /* give it a proper name */
- snprintf(drv->wiphy.dev.bus_id, BUS_ID_SIZE,
- PHY_NAME "%d", drv->idx);
-
- mutex_init(&drv->mtx);
- mutex_init(&drv->devlist_mtx);
- INIT_LIST_HEAD(&drv->netdev_list);
-
- device_initialize(&drv->wiphy.dev);
- drv->wiphy.dev.class = &ieee80211_class;
- drv->wiphy.dev.platform_data = drv;
-
- return &drv->wiphy;
-}
-EXPORT_SYMBOL(wiphy_new);
-
-int wiphy_register(struct wiphy *wiphy)
-{
- struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
- int res;
-
- mutex_lock(&cfg80211_drv_mutex);
-
- res = device_add(&drv->wiphy.dev);
- if (res)
- goto out_unlock;
-
- list_add(&drv->list, &cfg80211_drv_list);
-
- /* add to debugfs */
- drv->wiphy.debugfsdir =
- debugfs_create_dir(wiphy_name(&drv->wiphy),
- ieee80211_debugfs_dir);
-
- res = 0;
-out_unlock:
- mutex_unlock(&cfg80211_drv_mutex);
- return res;
-}
-EXPORT_SYMBOL(wiphy_register);
-
-void wiphy_unregister(struct wiphy *wiphy)
-{
- struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
-
- /* protect the device list */
- mutex_lock(&cfg80211_drv_mutex);
-
- BUG_ON(!list_empty(&drv->netdev_list));
-
- /*
- * Try to grab drv->mtx. If a command is still in progress,
- * hopefully the driver will refuse it since it's tearing
- * down the device already. We wait for this command to complete
- * before unlinking the item from the list.
- * Note: as codified by the BUG_ON above we cannot get here if
- * a virtual interface is still associated. Hence, we can only
- * get to lock contention here if userspace issues a command
- * that identified the hardware by wiphy index.
- */
- mutex_lock(&drv->mtx);
- /* unlock again before freeing */
- mutex_unlock(&drv->mtx);
-
- list_del(&drv->list);
- device_del(&drv->wiphy.dev);
- debugfs_remove(drv->wiphy.debugfsdir);
-
- mutex_unlock(&cfg80211_drv_mutex);
-}
-EXPORT_SYMBOL(wiphy_unregister);
-
-void cfg80211_dev_free(struct cfg80211_registered_device *drv)
-{
- mutex_destroy(&drv->mtx);
- mutex_destroy(&drv->devlist_mtx);
- kfree(drv);
-}
-
-void wiphy_free(struct wiphy *wiphy)
-{
- put_device(&wiphy->dev);
-}
-EXPORT_SYMBOL(wiphy_free);
-
-static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
- unsigned long state,
- void *ndev)
-{
- struct net_device *dev = ndev;
- struct cfg80211_registered_device *rdev;
-
- if (!dev->ieee80211_ptr)
- return 0;
-
- rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
-
- switch (state) {
- case NETDEV_REGISTER:
- mutex_lock(&rdev->devlist_mtx);
- list_add(&dev->ieee80211_ptr->list, &rdev->netdev_list);
- if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj,
- "phy80211")) {
- printk(KERN_ERR "wireless: failed to add phy80211 "
- "symlink to netdev!\n");
- }
- dev->ieee80211_ptr->netdev = dev;
- mutex_unlock(&rdev->devlist_mtx);
- break;
- case NETDEV_UNREGISTER:
- mutex_lock(&rdev->devlist_mtx);
- if (!list_empty(&dev->ieee80211_ptr->list)) {
- sysfs_remove_link(&dev->dev.kobj, "phy80211");
- list_del_init(&dev->ieee80211_ptr->list);
- }
- mutex_unlock(&rdev->devlist_mtx);
- break;
- }
-
- return 0;
-}
-
-static struct notifier_block cfg80211_netdev_notifier = {
- .notifier_call = cfg80211_netdev_notifier_call,
-};
-
-static int cfg80211_init(void)
-{
- int err = wiphy_sysfs_init();
- if (err)
- goto out_fail_sysfs;
-
- err = register_netdevice_notifier(&cfg80211_netdev_notifier);
- if (err)
- goto out_fail_notifier;
-
- err = nl80211_init();
- if (err)
- goto out_fail_nl80211;
-
- ieee80211_debugfs_dir = debugfs_create_dir("ieee80211", NULL);
-
- return 0;
-
-out_fail_nl80211:
- unregister_netdevice_notifier(&cfg80211_netdev_notifier);
-out_fail_notifier:
- wiphy_sysfs_exit();
-out_fail_sysfs:
- return err;
-}
-subsys_initcall(cfg80211_init);
-
-static void cfg80211_exit(void)
-{
- debugfs_remove(ieee80211_debugfs_dir);
- nl80211_exit();
- unregister_netdevice_notifier(&cfg80211_netdev_notifier);
- wiphy_sysfs_exit();
-}
-module_exit(cfg80211_exit);
+++ /dev/null
-/*
- * Wireless configuration interface internals.
- *
- * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
- */
-#ifndef __NET_WIRELESS_CORE_H
-#define __NET_WIRELESS_CORE_H
-#include <linux/mutex.h>
-#include <linux/list.h>
-#include <linux/netdevice.h>
-#include <net/genetlink.h>
-#include <net/wireless.h>
-#include <net/cfg80211.h>
-
-struct cfg80211_registered_device {
- struct cfg80211_ops *ops;
- struct list_head list;
- /* we hold this mutex during any call so that
- * we cannot do multiple calls at once, and also
- * to avoid the deregister call to proceed while
- * any call is in progress */
- struct mutex mtx;
-
- /* wiphy index, internal only */
- int idx;
-
- /* associate netdev list */
- struct mutex devlist_mtx;
- struct list_head netdev_list;
-
- /* must be last because of the way we do wiphy_priv(),
- * and it should at least be aligned to NETDEV_ALIGN */
- struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
-};
-
-static inline
-struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
-{
- BUG_ON(!wiphy);
- return container_of(wiphy, struct cfg80211_registered_device, wiphy);
-}
-
-extern struct mutex cfg80211_drv_mutex;
-extern struct list_head cfg80211_drv_list;
-
-/*
- * This function returns a pointer to the driver
- * that the genl_info item that is passed refers to.
- * If successful, it returns non-NULL and also locks
- * the driver's mutex!
- *
- * This means that you need to call cfg80211_put_dev()
- * before being allowed to acquire &cfg80211_drv_mutex!
- *
- * This is necessary because we need to lock the global
- * mutex to get an item off the list safely, and then
- * we lock the drv mutex so it doesn't go away under us.
- *
- * We don't want to keep cfg80211_drv_mutex locked
- * for all the time in order to allow requests on
- * other interfaces to go through at the same time.
- *
- * The result of this can be a PTR_ERR and hence must
- * be checked with IS_ERR() for errors.
- */
-extern struct cfg80211_registered_device *
-cfg80211_get_dev_from_info(struct genl_info *info);
-
-/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
-extern struct cfg80211_registered_device *
-cfg80211_get_dev_from_ifindex(int ifindex);
-
-extern void cfg80211_put_dev(struct cfg80211_registered_device *drv);
-
-/* free object */
-extern void cfg80211_dev_free(struct cfg80211_registered_device *drv);
-
-extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv,
- char *newname);
-
-#endif /* __NET_WIRELESS_CORE_H */
+++ /dev/null
-/*
- * This is the new netlink-based wireless configuration interface.
- *
- * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
- */
-
-#include <linux/if.h>
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/mutex.h>
-#include <linux/list.h>
-#include <linux/if_ether.h>
-#include <linux/ieee80211.h>
-#include <linux/nl80211.h>
-#include <linux/rtnetlink.h>
-#include <linux/netlink.h>
-#include <net/genetlink.h>
-#include <net/cfg80211.h>
-#include "core.h"
-#include "nl80211.h"
-
-/* the netlink family */
-static struct genl_family nl80211_fam = {
- .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
- .name = "nl80211", /* have users key off the name instead */
- .hdrsize = 0, /* no private header */
- .version = 1, /* no particular meaning now */
- .maxattr = NL80211_ATTR_MAX,
-};
-
-/* internal helper: get drv and dev */
-static int get_drv_dev_by_info_ifindex(struct genl_info *info,
- struct cfg80211_registered_device **drv,
- struct net_device **dev)
-{
- int ifindex;
-
- if (!info->attrs[NL80211_ATTR_IFINDEX])
- return -EINVAL;
-
- ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
- *dev = dev_get_by_index(ifindex);
- if (!*dev)
- return -ENODEV;
-
- *drv = cfg80211_get_dev_from_ifindex(ifindex);
- if (IS_ERR(*drv)) {
- dev_put(*dev);
- return PTR_ERR(*drv);
- }
-
- return 0;
-}
-
-/* policy for the attributes */
-static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
- [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
- [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
- .len = BUS_ID_SIZE-1 },
-
- [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
- [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
- [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
-};
-
-/* message building helper */
-static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
- int flags, u8 cmd)
-{
- /* since there is no private header just add the generic one */
- return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
-}
-
-/* netlink command implementations */
-
-static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
- struct cfg80211_registered_device *dev)
-{
- void *hdr;
-
- hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
- if (!hdr)
- return -1;
-
- NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
- NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
- return genlmsg_end(msg, hdr);
-
- nla_put_failure:
- return genlmsg_cancel(msg, hdr);
-}
-
-static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
-{
- int idx = 0;
- int start = cb->args[0];
- struct cfg80211_registered_device *dev;
-
- mutex_lock(&cfg80211_drv_mutex);
- list_for_each_entry(dev, &cfg80211_drv_list, list) {
- if (++idx < start)
- continue;
- if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq, NLM_F_MULTI,
- dev) < 0)
- break;
- }
- mutex_unlock(&cfg80211_drv_mutex);
-
- cb->args[0] = idx;
-
- return skb->len;
-}
-
-static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
-{
- struct sk_buff *msg;
- struct cfg80211_registered_device *dev;
-
- dev = cfg80211_get_dev_from_info(info);
- if (IS_ERR(dev))
- return PTR_ERR(dev);
-
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!msg)
- goto out_err;
-
- if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
- goto out_free;
-
- cfg80211_put_dev(dev);
-
- return genlmsg_unicast(msg, info->snd_pid);
-
- out_free:
- nlmsg_free(msg);
- out_err:
- cfg80211_put_dev(dev);
- return -ENOBUFS;
-}
-
-static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *rdev;
- int result;
-
- if (!info->attrs[NL80211_ATTR_WIPHY_NAME])
- return -EINVAL;
-
- rdev = cfg80211_get_dev_from_info(info);
- if (IS_ERR(rdev))
- return PTR_ERR(rdev);
-
- result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
-
- cfg80211_put_dev(rdev);
- return result;
-}
-
-
-static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
- struct net_device *dev)
-{
- void *hdr;
-
- hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
- if (!hdr)
- return -1;
-
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
- NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
- /* TODO: interface type */
- return genlmsg_end(msg, hdr);
-
- nla_put_failure:
- return genlmsg_cancel(msg, hdr);
-}
-
-static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
-{
- int wp_idx = 0;
- int if_idx = 0;
- int wp_start = cb->args[0];
- int if_start = cb->args[1];
- struct cfg80211_registered_device *dev;
- struct wireless_dev *wdev;
-
- mutex_lock(&cfg80211_drv_mutex);
- list_for_each_entry(dev, &cfg80211_drv_list, list) {
- if (++wp_idx < wp_start)
- continue;
- if_idx = 0;
-
- mutex_lock(&dev->devlist_mtx);
- list_for_each_entry(wdev, &dev->netdev_list, list) {
- if (++if_idx < if_start)
- continue;
- if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq, NLM_F_MULTI,
- wdev->netdev) < 0)
- break;
- }
- mutex_unlock(&dev->devlist_mtx);
- }
- mutex_unlock(&cfg80211_drv_mutex);
-
- cb->args[0] = wp_idx;
- cb->args[1] = if_idx;
-
- return skb->len;
-}
-
-static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
-{
- struct sk_buff *msg;
- struct cfg80211_registered_device *dev;
- struct net_device *netdev;
- int err;
-
- err = get_drv_dev_by_info_ifindex(info, &dev, &netdev);
- if (err)
- return err;
-
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!msg)
- goto out_err;
-
- if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0)
- goto out_free;
-
- dev_put(netdev);
- cfg80211_put_dev(dev);
-
- return genlmsg_unicast(msg, info->snd_pid);
-
- out_free:
- nlmsg_free(msg);
- out_err:
- dev_put(netdev);
- cfg80211_put_dev(dev);
- return -ENOBUFS;
-}
-
-static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err, ifindex;
- enum nl80211_iftype type;
- struct net_device *dev;
-
- if (info->attrs[NL80211_ATTR_IFTYPE]) {
- type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
- if (type > NL80211_IFTYPE_MAX)
- return -EINVAL;
- } else
- return -EINVAL;
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
- ifindex = dev->ifindex;
- dev_put(dev);
-
- if (!drv->ops->change_virtual_intf) {
- err = -EOPNOTSUPP;
- goto unlock;
- }
-
- rtnl_lock();
- err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, type);
- rtnl_unlock();
-
- unlock:
- cfg80211_put_dev(drv);
- return err;
-}
-
-static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err;
- enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
-
- if (!info->attrs[NL80211_ATTR_IFNAME])
- return -EINVAL;
-
- if (info->attrs[NL80211_ATTR_IFTYPE]) {
- type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
- if (type > NL80211_IFTYPE_MAX)
- return -EINVAL;
- }
-
- drv = cfg80211_get_dev_from_info(info);
- if (IS_ERR(drv))
- return PTR_ERR(drv);
-
- if (!drv->ops->add_virtual_intf) {
- err = -EOPNOTSUPP;
- goto unlock;
- }
-
- rtnl_lock();
- err = drv->ops->add_virtual_intf(&drv->wiphy,
- nla_data(info->attrs[NL80211_ATTR_IFNAME]), type);
- rtnl_unlock();
-
- unlock:
- cfg80211_put_dev(drv);
- return err;
-}
-
-static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int ifindex, err;
- struct net_device *dev;
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
- ifindex = dev->ifindex;
- dev_put(dev);
-
- if (!drv->ops->del_virtual_intf) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- rtnl_lock();
- err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
- rtnl_unlock();
-
- out:
- cfg80211_put_dev(drv);
- return err;
-}
-
-static struct genl_ops nl80211_ops[] = {
- {
- .cmd = NL80211_CMD_GET_WIPHY,
- .doit = nl80211_get_wiphy,
- .dumpit = nl80211_dump_wiphy,
- .policy = nl80211_policy,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = NL80211_CMD_SET_WIPHY,
- .doit = nl80211_set_wiphy,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_GET_INTERFACE,
- .doit = nl80211_get_interface,
- .dumpit = nl80211_dump_interface,
- .policy = nl80211_policy,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = NL80211_CMD_SET_INTERFACE,
- .doit = nl80211_set_interface,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_NEW_INTERFACE,
- .doit = nl80211_new_interface,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_DEL_INTERFACE,
- .doit = nl80211_del_interface,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
-};
-
-/* multicast groups */
-static struct genl_multicast_group nl80211_config_mcgrp = {
- .name = "config",
-};
-
-/* notification functions */
-
-void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
-{
- struct sk_buff *msg;
-
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!msg)
- return;
-
- if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
- nlmsg_free(msg);
- return;
- }
-
- genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
-}
-
-/* initialisation/exit functions */
-
-int nl80211_init(void)
-{
- int err, i;
-
- err = genl_register_family(&nl80211_fam);
- if (err)
- return err;
-
- for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
- err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
- if (err)
- goto err_out;
- }
-
- err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
- if (err)
- goto err_out;
-
- return 0;
- err_out:
- genl_unregister_family(&nl80211_fam);
- return err;
-}
-
-void nl80211_exit(void)
-{
- genl_unregister_family(&nl80211_fam);
-}
+++ /dev/null
-#ifndef __NET_WIRELESS_NL80211_H
-#define __NET_WIRELESS_NL80211_H
-
-#include "core.h"
-
-#ifdef CONFIG_NL80211
-extern int nl80211_init(void);
-extern void nl80211_exit(void);
-extern void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev);
-#else
-static inline int nl80211_init(void)
-{
- return 0;
-}
-static inline void nl80211_exit(void)
-{
-}
-static inline void nl80211_notify_dev_rename(
- struct cfg80211_registered_device *rdev)
-{
-}
-#endif /* CONFIG_NL80211 */
-
-#endif /* __NET_WIRELESS_NL80211_H */
+++ /dev/null
-/*
- * Radiotap parser
- *
- * Copyright 2007 Andy Green <andy@warmcat.com>
- */
-
-#include <net/cfg80211.h>
-#include <net/ieee80211_radiotap.h>
-#include <asm/unaligned.h>
-
-/* function prototypes and related defs are in include/net/cfg80211.h */
-
-/**
- * ieee80211_radiotap_iterator_init - radiotap parser iterator initialization
- * @iterator: radiotap_iterator to initialize
- * @radiotap_header: radiotap header to parse
- * @max_length: total length we can parse into (eg, whole packet length)
- *
- * Returns: 0 or a negative error code if there is a problem.
- *
- * This function initializes an opaque iterator struct which can then
- * be passed to ieee80211_radiotap_iterator_next() to visit every radiotap
- * argument which is present in the header. It knows about extended
- * present headers and handles them.
- *
- * How to use:
- * call __ieee80211_radiotap_iterator_init() to init a semi-opaque iterator
- * struct ieee80211_radiotap_iterator (no need to init the struct beforehand)
- * checking for a good 0 return code. Then loop calling
- * __ieee80211_radiotap_iterator_next()... it returns either 0,
- * -ENOENT if there are no more args to parse, or -EINVAL if there is a problem.
- * The iterator's @this_arg member points to the start of the argument
- * associated with the current argument index that is present, which can be
- * found in the iterator's @this_arg_index member. This arg index corresponds
- * to the IEEE80211_RADIOTAP_... defines.
- *
- * Radiotap header length:
- * You can find the CPU-endian total radiotap header length in
- * iterator->max_length after executing ieee80211_radiotap_iterator_init()
- * successfully.
- *
- * Alignment Gotcha:
- * You must take care when dereferencing iterator.this_arg
- * for multibyte types... the pointer is not aligned. Use
- * get_unaligned((type *)iterator.this_arg) to dereference
- * iterator.this_arg for type "type" safely on all arches.
- *
- * Example code:
- * See Documentation/networking/radiotap-headers.txt
- */
-
-int ieee80211_radiotap_iterator_init(
- struct ieee80211_radiotap_iterator *iterator,
- struct ieee80211_radiotap_header *radiotap_header,
- int max_length)
-{
- /* Linux only supports version 0 radiotap format */
- if (radiotap_header->it_version)
- return -EINVAL;
-
- /* sanity check for allowed length and radiotap length field */
- if (max_length < le16_to_cpu(get_unaligned(&radiotap_header->it_len)))
- return -EINVAL;
-
- iterator->rtheader = radiotap_header;
- iterator->max_length = le16_to_cpu(get_unaligned(
- &radiotap_header->it_len));
- iterator->arg_index = 0;
- iterator->bitmap_shifter = le32_to_cpu(get_unaligned(
- &radiotap_header->it_present));
- iterator->arg = (u8 *)radiotap_header + sizeof(*radiotap_header);
- iterator->this_arg = NULL;
-
- /* find payload start allowing for extended bitmap(s) */
-
- if (unlikely(iterator->bitmap_shifter & (1<<IEEE80211_RADIOTAP_EXT))) {
- while (le32_to_cpu(get_unaligned((__le32 *)iterator->arg)) &
- (1<<IEEE80211_RADIOTAP_EXT)) {
- iterator->arg += sizeof(u32);
-
- /*
- * check for insanity where the present bitmaps
- * keep claiming to extend up to or even beyond the
- * stated radiotap header length
- */
-
- if (((ulong)iterator->arg -
- (ulong)iterator->rtheader) > iterator->max_length)
- return -EINVAL;
- }
-
- iterator->arg += sizeof(u32);
-
- /*
- * no need to check again for blowing past stated radiotap
- * header length, because ieee80211_radiotap_iterator_next
- * checks it before it is dereferenced
- */
- }
-
- /* we are all initialized happily */
-
- return 0;
-}
-EXPORT_SYMBOL(ieee80211_radiotap_iterator_init);
-
-
-/**
- * ieee80211_radiotap_iterator_next - return next radiotap parser iterator arg
- * @iterator: radiotap_iterator to move to next arg (if any)
- *
- * Returns: 0 if there is an argument to handle,
- * -ENOENT if there are no more args or -EINVAL
- * if there is something else wrong.
- *
- * This function provides the next radiotap arg index (IEEE80211_RADIOTAP_*)
- * in @this_arg_index and sets @this_arg to point to the
- * payload for the field. It takes care of alignment handling and extended
- * present fields. @this_arg can be changed by the caller (eg,
- * incremented to move inside a compound argument like
- * IEEE80211_RADIOTAP_CHANNEL). The args pointed to are in
- * little-endian format whatever the endianess of your CPU.
- *
- * Alignment Gotcha:
- * You must take care when dereferencing iterator.this_arg
- * for multibyte types... the pointer is not aligned. Use
- * get_unaligned((type *)iterator.this_arg) to dereference
- * iterator.this_arg for type "type" safely on all arches.
- */
-
-int ieee80211_radiotap_iterator_next(
- struct ieee80211_radiotap_iterator *iterator)
-{
-
- /*
- * small length lookup table for all radiotap types we heard of
- * starting from b0 in the bitmap, so we can walk the payload
- * area of the radiotap header
- *
- * There is a requirement to pad args, so that args
- * of a given length must begin at a boundary of that length
- * -- but note that compound args are allowed (eg, 2 x u16
- * for IEEE80211_RADIOTAP_CHANNEL) so total arg length is not
- * a reliable indicator of alignment requirement.
- *
- * upper nybble: content alignment for arg
- * lower nybble: content length for arg
- */
-
- static const u8 rt_sizes[] = {
- [IEEE80211_RADIOTAP_TSFT] = 0x88,
- [IEEE80211_RADIOTAP_FLAGS] = 0x11,
- [IEEE80211_RADIOTAP_RATE] = 0x11,
- [IEEE80211_RADIOTAP_CHANNEL] = 0x24,
- [IEEE80211_RADIOTAP_FHSS] = 0x22,
- [IEEE80211_RADIOTAP_DBM_ANTSIGNAL] = 0x11,
- [IEEE80211_RADIOTAP_DBM_ANTNOISE] = 0x11,
- [IEEE80211_RADIOTAP_LOCK_QUALITY] = 0x22,
- [IEEE80211_RADIOTAP_TX_ATTENUATION] = 0x22,
- [IEEE80211_RADIOTAP_DB_TX_ATTENUATION] = 0x22,
- [IEEE80211_RADIOTAP_DBM_TX_POWER] = 0x11,
- [IEEE80211_RADIOTAP_ANTENNA] = 0x11,
- [IEEE80211_RADIOTAP_DB_ANTSIGNAL] = 0x11,
- [IEEE80211_RADIOTAP_DB_ANTNOISE] = 0x11,
- [IEEE80211_RADIOTAP_RX_FLAGS] = 0x22,
- [IEEE80211_RADIOTAP_TX_FLAGS] = 0x22,
- [IEEE80211_RADIOTAP_RTS_RETRIES] = 0x11,
- [IEEE80211_RADIOTAP_DATA_RETRIES] = 0x11,
- /*
- * add more here as they are defined in
- * include/net/ieee80211_radiotap.h
- */
- };
-
- /*
- * for every radiotap entry we can at
- * least skip (by knowing the length)...
- */
-
- while (iterator->arg_index < sizeof(rt_sizes)) {
- int hit = 0;
- int pad;
-
- if (!(iterator->bitmap_shifter & 1))
- goto next_entry; /* arg not present */
-
- /*
- * arg is present, account for alignment padding
- * 8-bit args can be at any alignment
- * 16-bit args must start on 16-bit boundary
- * 32-bit args must start on 32-bit boundary
- * 64-bit args must start on 64-bit boundary
- *
- * note that total arg size can differ from alignment of
- * elements inside arg, so we use upper nybble of length
- * table to base alignment on
- *
- * also note: these alignments are ** relative to the
- * start of the radiotap header **. There is no guarantee
- * that the radiotap header itself is aligned on any
- * kind of boundary.
- *
- * the above is why get_unaligned() is used to dereference
- * multibyte elements from the radiotap area
- */
-
- pad = (((ulong)iterator->arg) -
- ((ulong)iterator->rtheader)) &
- ((rt_sizes[iterator->arg_index] >> 4) - 1);
-
- if (pad)
- iterator->arg +=
- (rt_sizes[iterator->arg_index] >> 4) - pad;
-
- /*
- * this is what we will return to user, but we need to
- * move on first so next call has something fresh to test
- */
- iterator->this_arg_index = iterator->arg_index;
- iterator->this_arg = iterator->arg;
- hit = 1;
-
- /* internally move on the size of this arg */
- iterator->arg += rt_sizes[iterator->arg_index] & 0x0f;
-
- /*
- * check for insanity where we are given a bitmap that
- * claims to have more arg content than the length of the
- * radiotap section. We will normally end up equalling this
- * max_length on the last arg, never exceeding it.
- */
-
- if (((ulong)iterator->arg - (ulong)iterator->rtheader) >
- iterator->max_length)
- return -EINVAL;
-
- next_entry:
- iterator->arg_index++;
- if (unlikely((iterator->arg_index & 31) == 0)) {
- /* completed current u32 bitmap */
- if (iterator->bitmap_shifter & 1) {
- /* b31 was set, there is more */
- /* move to next u32 bitmap */
- iterator->bitmap_shifter = le32_to_cpu(
- get_unaligned(iterator->next_bitmap));
- iterator->next_bitmap++;
- } else
- /* no more bitmaps: end */
- iterator->arg_index = sizeof(rt_sizes);
- } else /* just try the next bit */
- iterator->bitmap_shifter >>= 1;
-
- /* if we found a valid arg earlier, return it now */
- if (hit)
- return 0;
- }
-
- /* we don't know how to handle any more args, we're done */
- return -ENOENT;
-}
-EXPORT_SYMBOL(ieee80211_radiotap_iterator_next);
+++ /dev/null
-/*
- * This file provides /sys/class/ieee80211/<wiphy name>/
- * and some default attributes.
- *
- * Copyright 2005-2006 Jiri Benc <jbenc@suse.cz>
- * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
- *
- * This file is GPLv2 as found in COPYING.
- */
-
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/nl80211.h>
-#include <linux/rtnetlink.h>
-#include <net/cfg80211.h>
-#include "sysfs.h"
-#include "core.h"
-
-static inline struct cfg80211_registered_device *dev_to_rdev(
- struct device *dev)
-{
- return container_of(dev, struct cfg80211_registered_device, wiphy.dev);
-}
-
-static ssize_t _show_index(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- return sprintf(buf, "%d\n", dev_to_rdev(dev)->idx);
-}
-
-static ssize_t _show_permaddr(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned char *addr = dev_to_rdev(dev)->wiphy.perm_addr;
-
- return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
- addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
-}
-
-static struct device_attribute ieee80211_dev_attrs[] = {
- __ATTR(index, S_IRUGO, _show_index, NULL),
- __ATTR(macaddress, S_IRUGO, _show_permaddr, NULL),
- {}
-};
-
-static void wiphy_dev_release(struct device *dev)
-{
- struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
-
- cfg80211_dev_free(rdev);
-}
-
-#ifdef CONFIG_HOTPLUG
-static int wiphy_uevent(struct device *dev, char **envp,
- int num_envp, char *buf, int size)
-{
- /* TODO, we probably need stuff here */
- return 0;
-}
-#endif
-
-struct class ieee80211_class = {
- .name = "ieee80211",
- .owner = THIS_MODULE,
- .dev_release = wiphy_dev_release,
- .dev_attrs = ieee80211_dev_attrs,
-#ifdef CONFIG_HOTPLUG
- .dev_uevent = wiphy_uevent,
-#endif
-};
-
-int wiphy_sysfs_init(void)
-{
- return class_register(&ieee80211_class);
-}
-
-void wiphy_sysfs_exit(void)
-{
- class_unregister(&ieee80211_class);
-}
+++ /dev/null
-#ifndef __WIRELESS_SYSFS_H
-#define __WIRELESS_SYSFS_H
-
-extern int wiphy_sysfs_init(void);
-extern void wiphy_sysfs_exit(void);
-
-extern struct class ieee80211_class;
-
-#endif /* __WIRELESS_SYSFS_H */
projects / openwrt.git / commitdiff