+/*
+ * Wireless Network Adapter configuration utility
+ *
+ * Copyright (C) 2005 Felix Fietkau <nbd@vd-s.ath.cx>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <iwlib.h>
+#include <bcmnvram.h>
+#include <shutils.h>
+#include <wlioctl.h>
+
+/*------------------------------------------------------------------*/
+/*
+ * Macro to handle errors when setting WE
+ * Print a nice error message and exit...
+ * We define them as macro so that "return" do the right thing.
+ * The "do {...} while(0)" is a standard trick
+ */
+#define ERR_SET_EXT(rname, request) \
+ fprintf(stderr, "Error for wireless request \"%s\" (%X) :\n", \
+ rname, request)
+
+#define ABORT_ARG_NUM(rname, request) \
+ do { \
+ ERR_SET_EXT(rname, request); \
+ fprintf(stderr, " too few arguments.\n"); \
+ return; \
+ } while(0)
+
+#define ABORT_ARG_TYPE(rname, request, arg) \
+ do { \
+ ERR_SET_EXT(rname, request); \
+ fprintf(stderr, " invalid argument \"%s\".\n", arg); \
+ return; \
+ } while(0)
+
+#define ABORT_ARG_SIZE(rname, request, max) \
+ do { \
+ ERR_SET_EXT(rname, request); \
+ fprintf(stderr, " argument too big (max %d)\n", max); \
+ return; \
+ } while(0)
+
+/*------------------------------------------------------------------*/
+/*
+ * Wrapper to push some Wireless Parameter in the driver
+ * Use standard wrapper and add pretty error message if fail...
+ */
+#define IW_SET_EXT_ERR(skfd, ifname, request, wrq, rname) \
+ do { \
+ if(iw_set_ext(skfd, ifname, request, wrq) < 0) { \
+ ERR_SET_EXT(rname, request); \
+ fprintf(stderr, " SET failed on device %-1.16s ; %s.\n", \
+ ifname, strerror(errno)); \
+ return; \
+ } } while(0)
+
+/*------------------------------------------------------------------*/
+/*
+ * Wrapper to extract some Wireless Parameter out of the driver
+ * Use standard wrapper and add pretty error message if fail...
+ */
+#define IW_GET_EXT_ERR(skfd, ifname, request, wrq, rname) \
+ do { \
+ if(iw_get_ext(skfd, ifname, request, wrq) < 0) { \
+ ERR_SET_EXT(rname, request); \
+ fprintf(stderr, " GET failed on device %-1.16s ; %s.\n", \
+ ifname, strerror(errno)); \
+ return; \
+ } } while(0)
+
+char *prefix;
+char buffer[128];
+
+char *wl_var(char *name)
+{
+ strcpy(buffer, prefix);
+ strcat(buffer, name);
+}
+
+int nvram_enabled(char *name)
+{
+ return (nvram_match(name, "1") || nvram_match(name, "on") || nvram_match(name, "enabled") ? 1 : 0);
+}
+
+int nvram_disabled(char *name)
+{
+ return (nvram_match(name, "0") || nvram_match(name, "off") || nvram_match(name, "disabled") ? 1 : 0);
+}
+
+
+int bcom_ioctl(int skfd, char *ifname, int cmd, void *buf, int len)
+{
+ struct ifreq ifr;
+ wl_ioctl_t ioc;
+ int ret;
+
+ ioc.cmd = cmd;
+ ioc.buf = buf;
+ ioc.len = len;
+
+ ifr.ifr_data = (caddr_t) &ioc;
+ strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
+
+ ret = ioctl(skfd, SIOCDEVPRIVATE, &ifr);
+ if (ret < 0)
+ fprintf(stderr, "bcom_ioctl [cmd=%d, buf=%08x, len=%d] failed: %d\n", cmd, buf, len, ret);
+
+ return ret;
+}
+
+int bcom_set_val(int skfd, char *ifname, char *var, void *val, int len)
+{
+ char buf[8192];
+ int ret;
+
+ if (strlen(var) + 1 > sizeof(buf) || len > sizeof(buf))
+ return -1;
+
+ strcpy(buf, var);
+
+ if ((ret = bcom_ioctl(skfd, ifname, WLC_GET_VAR, buf, sizeof(buf))))
+ return ret;
+
+ memcpy(val, buf, len);
+ return 0;
+}
+
+int bcom_set_int(int skfd, char *ifname, char *var, int val)
+{
+ return bcom_set_val(skfd, ifname, var, &val, sizeof(val));
+}
+
+void setup_bcom(int skfd, char *ifname)
+{
+ int val = 0;
+ char *v;
+
+ if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
+ return;
+
+ bcom_ioctl(skfd, ifname, WLC_DOWN, NULL, 0);
+
+ /* Set up WPA */
+ if (nvram_match(wl_var("crypto"), "tkip"))
+ val = TKIP_ENABLED;
+ else if (nvram_match(wl_var("crypto"), "aes"))
+ val = AES_ENABLED;
+ else if (nvram_match(wl_var("crypto"), "tkip+aes"))
+ val = TKIP_ENABLED | AES_ENABLED;
+ bcom_ioctl(skfd, ifname, WLC_SET_WSEC, &val, sizeof(val));
+
+ if (val && nvram_get(wl_var("wpa_psk"))) {
+ val = 1;
+ bcom_ioctl(skfd, ifname, WLC_SET_EAP_RESTRICT, &val, sizeof(val));
+ }
+
+ /* Set up afterburner */
+ val = ABO_AUTO;
+ if (nvram_enabled(wl_var("afterburner")))
+ val = ABO_ON;
+ if (nvram_disabled(wl_var("afterburner")))
+ val = ABO_OFF;
+ bcom_set_val(skfd, ifname, "afterburner_override", &val, sizeof(val));
+
+ /* Set other options */
+ val = atoi(nvram_safe_get(wl_var("lazywds")));
+ bcom_ioctl(skfd, ifname, WLC_SET_LAZYWDS, &val, sizeof(val));
+ val = atoi(nvram_safe_get(wl_var("frag")));
+ bcom_ioctl(skfd, ifname, WLC_SET_FRAG, &val, sizeof(val));
+ val = atoi(nvram_safe_get(wl_var("dtim")));
+ bcom_ioctl(skfd, ifname, WLC_SET_DTIMPRD, &val, sizeof(val));
+ val = atoi(nvram_safe_get(wl_var("bcn")));
+ bcom_ioctl(skfd, ifname, WLC_SET_BCNPRD, &val, sizeof(val));
+ val = atoi(nvram_safe_get(wl_var("rts")));
+ bcom_ioctl(skfd, ifname, WLC_SET_RTS, &val, sizeof(val));
+ val = atoi(nvram_safe_get(wl_var("antdiv")));
+ bcom_ioctl(skfd, ifname, WLC_SET_ANTDIV, &val, sizeof(val));
+ val = atoi(nvram_safe_get(wl_var("txant")));
+ bcom_ioctl(skfd, ifname, WLC_SET_TXANT, &val, sizeof(val));
+
+ val = nvram_enabled(wl_var("ap_isolate"));
+ bcom_set_int(skfd, ifname, "ap_isolate", val);
+ val = nvram_enabled(wl_var("frameburst"));
+ bcom_ioctl(skfd, ifname, WLC_SET_FAKEFRAG, &val, sizeof(val));
+
+ /* Set up MAC list */
+ if (nvram_match(wl_var("macmode"), "allow"))
+ val = WLC_MACMODE_ALLOW;
+ else if (nvram_match(wl_var("macmode"), "deny"))
+ val = WLC_MACMODE_DENY;
+ else
+ val = WLC_MACMODE_DISABLED;
+
+ if ((val != WLC_MACMODE_DISABLED) && (v = nvram_get(wl_var("maclist")))) {
+ char buf[8192];
+ struct maclist *mac_list;
+ struct ether_addr *addr;
+ char *next;
+
+ memset(buf, 0, 8192);
+ mac_list = (struct maclist *) buf;
+ addr = mac_list->ea;
+
+ foreach(v, nvram_safe_get(wl_var("maclist")), next) {
+ if (ether_atoe(v, addr->ether_addr_octet)) {
+ mac_list->count++;
+ addr++;
+ }
+ }
+ bcom_ioctl(skfd, ifname, WLC_SET_MACLIST, buf, sizeof(buf));
+ } else {
+ val = WLC_MACMODE_DISABLED;
+ }
+ bcom_ioctl(skfd, ifname, WLC_SET_MACMODE, &val, sizeof(val));
+
+ /* Set up G mode */
+ bcom_ioctl(skfd, ifname, WLC_GET_PHYTYPE, &val, sizeof(val));
+ if (val == 2) {
+ int override = WLC_G_PROTECTION_OFF;
+ int control = WLC_G_PROTECTION_CTL_OFF;
+
+ val = atoi(nvram_safe_get(wl_var("gmode")));
+ if (val > 5)
+ val = 1;
+ bcom_ioctl(skfd, ifname, WLC_SET_GMODE, &val, sizeof(val));
+
+ if (nvram_match(wl_var("gmode_protection"), "auto")) {
+ override = WLC_G_PROTECTION_AUTO;
+ control = WLC_G_PROTECTION_CTL_OVERLAP;
+ }
+ if (nvram_enabled(wl_var("gmode_protection"))) {
+ override = WLC_G_PROTECTION_ON;
+ control = WLC_G_PROTECTION_CTL_OVERLAP;
+ }
+ bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_CONTROL, &override, sizeof(control));
+ bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_OVERRIDE, &override, sizeof(override));
+ }
+}
+
+void set_wext_ssid(int skfd, char *ifname)
+{
+ char *buffer;
+ struct iwreq wrq;
+
+ if (buffer = nvram_get(wl_var("ssid"))) {
+ if (strlen(buffer) > IW_ESSID_MAX_SIZE) {
+ ABORT_ARG_SIZE("Set ESSID", SIOCSIWESSID, IW_ESSID_MAX_SIZE);
+ } else {
+ char essid[IW_ESSID_MAX_SIZE + 1];
+
+ wrq.u.essid.flags = 1;
+ strcpy(essid, buffer);
+ wrq.u.essid.pointer = (caddr_t) essid;
+ wrq.u.essid.length = strlen(essid) + 1;
+ IW_SET_EXT_ERR(skfd, ifname, SIOCSIWESSID, &wrq, "Set ESSID");
+ }
+ }
+}
+
+void start_bcom(int skfd, char *ifname)
+{
+ int val = 0;
+
+ if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
+ return;
+
+ bcom_ioctl(skfd, ifname, WLC_UP, &val, sizeof(val));
+
+ /* Need to re-set SSID after WLC_UP */
+ set_wext_ssid(skfd, ifname);
+}
+
+void setup_wext_wep(int skfd, char *ifname)
+{
+ int i, keylen;
+ struct iwreq wrq;
+ char keystr[5];
+ char *keyval;
+ unsigned char key[IW_ENCODING_TOKEN_MAX];
+
+ strcpy(keystr, "key1");
+ for (i = 1; i <= 4; i++) {
+ if (keyval = nvram_get(wl_var(keystr))) {
+ keylen = iw_in_key(keyval, key);
+
+ if (keylen > 0) {
+ wrq.u.data.length = keylen;
+ wrq.u.data.pointer = (caddr_t) key;
+ wrq.u.data.flags = i;
+ IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
+ }
+ }
+ keystr[3]++;
+ }
+
+
+ i = atoi(nvram_safe_get(wl_var("key")));
+ if (i > 0 && i < 4) {
+ wrq.u.data.flags = i | IW_ENCODE_RESTRICTED;
+ IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
+ }
+}
+
+void setup_wext(int skfd, char *ifname)
+{
+ char *buffer;
+ struct iwreq wrq;
+
+ /* Set ESSID */
+ set_wext_ssid(skfd, ifname);
+
+ /* Set channel */
+ int channel = atoi(nvram_safe_get(wl_var("channel")));
+
+ wrq.u.freq.m = -1;
+ wrq.u.freq.e = 0;
+ wrq.u.freq.flags = 0;
+
+ if (channel > 0) {
+ wrq.u.freq.flags = IW_FREQ_FIXED;
+ wrq.u.freq.m = channel;
+ }
+ IW_SET_EXT_ERR(skfd, ifname, SIOCSIWFREQ, &wrq, "Set Frequency");
+
+ /* Set operation mode */
+ int ap = 0, infra = 0, wet = 0;
+
+ ap = (nvram_match(wl_var("mode"), "ap") || nvram_match(wl_var("mode"), "wds"));
+ infra = nvram_enabled(wl_var("infra"));
+ wet = nvram_enabled(wl_var("wet"));
+
+ wrq.u.mode = (!infra ? IW_MODE_ADHOC : (ap ? IW_MODE_MASTER : (wet ? IW_MODE_REPEAT : IW_MODE_INFRA)));
+ IW_SET_EXT_ERR(skfd, ifname, SIOCSIWMODE, &wrq, "Set Mode");
+
+ /* Disable radio if wlX_radio is set and not enabled */
+ if (nvram_disabled(wl_var("radio")))
+ wrq.u.txpower.disabled = 1;
+ else
+ wrq.u.txpower.disabled = 0;
+
+ wrq.u.txpower.value = -1;
+ wrq.u.txpower.fixed = 1;
+ wrq.u.txpower.flags = IW_TXPOW_MWATT;
+ IW_SET_EXT_ERR(skfd, ifname, SIOCSIWTXPOW, &wrq, "Set Tx Power");
+
+ /* Set up WEP */
+ if (nvram_enabled(wl_var("wep")))
+ setup_wext_wep(skfd, ifname);
+
+}
+
+
+static int setup_interfaces(int skfd, char *ifname, char *args[], int count)
+{
+ struct iwreq wrq;
+ int rc;
+
+ /* Avoid "Unused parameter" warning */
+ args = args; count = count;
+
+ if(iw_get_ext(skfd, ifname, SIOCGIWNAME, &wrq) < 0)
+ return 0;
+
+ setup_bcom(skfd, ifname);
+ setup_wext(skfd, ifname);
+ start_bcom(skfd, ifname);
+ prefix[2]++;
+}
+
+int main(int argc, char **argv)
+{
+ int skfd;
+
+ if((skfd = iw_sockets_open()) < 0) {
+ perror("socket");
+ exit(-1);
+ }
+
+ prefix = strdup("wl0_");
+ iw_enum_devices(skfd, &setup_interfaces, NULL, 0);
+
+ return 0;
+}
projects / openwrt.git / commitdiff