tahvo-usb: Fix NULL ptr deref in OTR irq handler

[openwrt.git] / package / base-files / files / sbin / wifi

diff --git a/package/base-files/files/sbin/wifi b/package/base-files/files/sbin/wifi
index 54e55b4..e2dd0a3 100755 (executable)
--- a/package/base-files/files/sbin/wifi
+++ b/package/base-files/files/sbin/wifi
@@ -3,6 +3,14 @@
 
 . /etc/functions.sh
 
+usage() {
+       cat <<EOF
+Usage: $0 [down|detect]
+enables (default), disables or detects a wifi configuration.
+EOF
+       exit 1
+}
+
 find_net_config() {(
        local vif="$1"
        local cfg
@@ -34,9 +42,60 @@ bridge_interface() {(
        [ "$iftype" = bridge ] && config_get "$cfg" ifname
 )}
 
+prepare_key_wep() {
+       local key="$1"
+       local hex=1
+
+       echo -n "$key" | grep -qE "[^a-fA-F0-9]" && hex=0
+       [ "${#key}" -eq 10 -a $hex -eq 1 ] || \
+       [ "${#key}" -eq 26 -a $hex -eq 1 ] || {
+               [ "${key:0:2}" = "s:" ] && key="${key#s:}"
+               key="$(echo -n "$key" | hexdump -ve '1/1 "%02x" ""')"
+       }
+       echo "$key"
+}
+
+wifi_fixup_hwmode() {
+       local device="$1"
+       local default="$2"
+       local hwmode hwmode_11n
+
+       config_get channel "$device" channel
+       config_get hwmode "$device" hwmode
+       case "$hwmode" in
+               11bg) hwmode=bg;;
+               11a) hwmode=a;;
+               11b) hwmode=b;;
+               11g) hwmode=g;;
+               11n*)
+                       hwmode_11n="${hwmode##11n}"
+                       case "$hwmode_11n" in
+                               a|g) ;;
+                               default) hwmode_11n="$default"
+                       esac
+                       config_set "$device" hwmode_11n "$hwmode_11n"
+               ;;
+               *)
+                       hwmode=
+                       if [ "${channel:-0}" -gt 0 ]; then 
+                               if [ "${channel:-0}" -gt 14 ]; then
+                                       hwmode=a
+                               else
+                                       hwmode=g
+                               fi
+                       else
+                               hwmode="$default"
+                       fi
+               ;;
+       esac
+       config_set "$device" hwmode "$hwmode"
+}
 
 wifi_updown() {
-       [ enable = "$1" ] && wifi_updown disable "$2"
+       [ enable = "$1" ] && {
+               wifi_updown disable "$2"
+               scan_wifi
+       }
        for device in ${2:-$DEVICES}; do (
                config_get disabled "$device" disabled
                [ 1 == "$disabled" ] && {
@@ -66,10 +125,12 @@ wifi_detect() {
 start_net() {(
        local iface="$1"
        local config="$2"
+       local vifmac="$3"
 
+       [ -f "/var/run/$iface.pid" ] && kill "$(cat /var/run/${iface}.pid)" 2>/dev/null
        include /lib/network
        scan_interfaces
-       setup_interface "$1" "$2"
+       setup_interface "$iface" "$config" "" "$vifmac"
 )}
 
 set_wifi_up() {
@@ -83,6 +144,8 @@ set_wifi_down() {
        local cfg="$1"
        local vifs vif vifstr
 
+       [ -f "/var/run/wifi-${cfg}.pid" ] &&
+               kill "$(cat "/var/run/wifi-${cfg}.pid")" 2>/dev/null
        uci_revert_state wireless "$cfg"
        config_get vifs "$cfg" vifs
        for vif in $vifs; do
@@ -92,12 +155,23 @@ set_wifi_down() {
 
 scan_wifi() {
        local cfgfile="$1"
+       DEVICES=
        config_cb() {
-               config_get TYPE "$CONFIG_SECTION" TYPE
-               case "$TYPE" in
+               local type="$1"
+               local section="$2"
+
+               # section start
+               case "$type" in
                        wifi-device)
-                               append DEVICES "$CONFIG_SECTION"
+                               append DEVICES "$section"
+                               config_set "$section" vifs ""
+                               config_set "$section" ht_capab ""
                        ;;
+               esac
+
+               # section end
+               config_get TYPE "$CONFIG_SECTION" TYPE
+               case "$TYPE" in
                        wifi-iface)
                                config_get device "$CONFIG_SECTION" device
                                config_get vifs "$device" vifs 
@@ -117,5 +191,6 @@ scan_wifi
 case "$1" in
        down) wifi_updown "disable" "$2";;
        detect) wifi_detect "$2";;
+       --help|help) usage;;
        *) wifi_updown "enable" "$2";;
 esac