2 * Wireless Network Adapter configuration utility
4 * Copyright (C) 2005 Felix Fietkau <nbd@vd-s.ath.cx>
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
24 /*------------------------------------------------------------------*/
26 * Macro to handle errors when setting WE
27 * Print a nice error message and exit...
28 * We define them as macro so that "return" do the right thing.
29 * The "do {...} while(0)" is a standard trick
31 #define ERR_SET_EXT(rname, request) \
32 fprintf(stderr, "Error for wireless request \"%s\" (%X) :\n", \
35 #define ABORT_ARG_NUM(rname, request) \
37 ERR_SET_EXT(rname, request); \
38 fprintf(stderr, " too few arguments.\n"); \
42 #define ABORT_ARG_TYPE(rname, request, arg) \
44 ERR_SET_EXT(rname, request); \
45 fprintf(stderr, " invalid argument \"%s\".\n", arg); \
49 #define ABORT_ARG_SIZE(rname, request, max) \
51 ERR_SET_EXT(rname, request); \
52 fprintf(stderr, " argument too big (max %d)\n", max); \
56 /*------------------------------------------------------------------*/
58 * Wrapper to push some Wireless Parameter in the driver
59 * Use standard wrapper and add pretty error message if fail...
61 #define IW_SET_EXT_ERR(skfd, ifname, request, wrq, rname) \
63 if(iw_set_ext(skfd, ifname, request, wrq) < 0) { \
64 ERR_SET_EXT(rname, request); \
65 fprintf(stderr, " SET failed on device %-1.16s ; %s.\n", \
66 ifname, strerror(errno)); \
70 /*------------------------------------------------------------------*/
72 * Wrapper to extract some Wireless Parameter out of the driver
73 * Use standard wrapper and add pretty error message if fail...
75 #define IW_GET_EXT_ERR(skfd, ifname, request, wrq, rname) \
77 if(iw_get_ext(skfd, ifname, request, wrq) < 0) { \
78 ERR_SET_EXT(rname, request); \
79 fprintf(stderr, " GET failed on device %-1.16s ; %s.\n", \
80 ifname, strerror(errno)); \
87 char *wl_var(char *name)
89 strcpy(buffer, prefix);
93 int nvram_enabled(char *name)
95 return (nvram_match(name, "1") || nvram_match(name, "on") || nvram_match(name, "enabled") || nvram_match(name, "true") || nvram_match(name, "yes") ? 1 : 0);
98 int nvram_disabled(char *name)
100 return (nvram_match(name, "0") || nvram_match(name, "off") || nvram_match(name, "disabled") || nvram_match(name, "false") || nvram_match(name, "no") ? 1 : 0);
104 int bcom_ioctl(int skfd, char *ifname, int cmd, void *buf, int len)
114 ifr.ifr_data = (caddr_t) &ioc;
115 strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
117 ret = ioctl(skfd, SIOCDEVPRIVATE, &ifr);
119 fprintf(stderr, "bcom_ioctl [cmd=%d, buf=%08x, len=%d] failed: %d\n", cmd, buf, len, ret);
124 int bcom_set_val(int skfd, char *ifname, char *var, void *val, int len)
129 if (strlen(var) + 1 > sizeof(buf) || len > sizeof(buf))
134 if ((ret = bcom_ioctl(skfd, ifname, WLC_GET_VAR, buf, sizeof(buf))))
137 memcpy(val, buf, len);
141 int bcom_set_int(int skfd, char *ifname, char *var, int val)
143 return bcom_set_val(skfd, ifname, var, &val, sizeof(val));
146 void setup_bcom(int skfd, char *ifname)
151 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
154 bcom_ioctl(skfd, ifname, WLC_DOWN, NULL, 0);
157 if (nvram_match(wl_var("crypto"), "tkip"))
159 else if (nvram_match(wl_var("crypto"), "aes"))
161 else if (nvram_match(wl_var("crypto"), "tkip+aes"))
162 val = TKIP_ENABLED | AES_ENABLED;
165 bcom_ioctl(skfd, ifname, WLC_SET_WSEC, &val, sizeof(val));
167 if (val && nvram_get(wl_var("wpa_psk"))) {
169 bcom_ioctl(skfd, ifname, WLC_SET_EAP_RESTRICT, &val, sizeof(val));
172 /* Set up afterburner */
174 if (nvram_enabled(wl_var("afterburner")))
176 if (nvram_disabled(wl_var("afterburner")))
178 bcom_set_val(skfd, ifname, "afterburner_override", &val, sizeof(val));
180 /* Set other options */
181 val = atoi(nvram_safe_get(wl_var("lazywds")));
182 bcom_ioctl(skfd, ifname, WLC_SET_LAZYWDS, &val, sizeof(val));
183 val = atoi(nvram_safe_get(wl_var("frag")));
184 bcom_ioctl(skfd, ifname, WLC_SET_FRAG, &val, sizeof(val));
185 val = atoi(nvram_safe_get(wl_var("dtim")));
186 bcom_ioctl(skfd, ifname, WLC_SET_DTIMPRD, &val, sizeof(val));
187 val = atoi(nvram_safe_get(wl_var("bcn")));
188 bcom_ioctl(skfd, ifname, WLC_SET_BCNPRD, &val, sizeof(val));
189 val = atoi(nvram_safe_get(wl_var("rts")));
190 bcom_ioctl(skfd, ifname, WLC_SET_RTS, &val, sizeof(val));
191 val = atoi(nvram_safe_get(wl_var("antdiv")));
192 bcom_ioctl(skfd, ifname, WLC_SET_ANTDIV, &val, sizeof(val));
193 val = atoi(nvram_safe_get(wl_var("txant")));
194 bcom_ioctl(skfd, ifname, WLC_SET_TXANT, &val, sizeof(val));
196 val = nvram_enabled(wl_var("ap_isolate"));
197 bcom_set_int(skfd, ifname, "ap_isolate", val);
199 val = nvram_enabled(wl_var("frameburst"));
200 bcom_ioctl(skfd, ifname, WLC_SET_FAKEFRAG, &val, sizeof(val));
202 /* Set up MAC list */
203 if (nvram_match(wl_var("macmode"), "allow"))
204 val = WLC_MACMODE_ALLOW;
205 else if (nvram_match(wl_var("macmode"), "deny"))
206 val = WLC_MACMODE_DENY;
208 val = WLC_MACMODE_DISABLED;
210 if ((val != WLC_MACMODE_DISABLED) && (v = nvram_get(wl_var("maclist")))) {
212 struct maclist *mac_list;
213 struct ether_addr *addr;
216 memset(buf, 0, 8192);
217 mac_list = (struct maclist *) buf;
221 foreach(v, nvram_safe_get(wl_var("maclist")), next) {
222 if (ether_atoe(v, addr->ether_addr_octet)) {
228 bcom_ioctl(skfd, ifname, WLC_SET_MACLIST, buf, sizeof(buf));
230 val = WLC_MACMODE_DISABLED;
232 bcom_ioctl(skfd, ifname, WLC_SET_MACMODE, &val, sizeof(val));
235 bcom_ioctl(skfd, ifname, WLC_GET_PHYTYPE, &val, sizeof(val));
237 int override = WLC_G_PROTECTION_OFF;
238 int control = WLC_G_PROTECTION_CTL_OFF;
240 val = atoi(nvram_safe_get(wl_var("gmode")));
243 bcom_ioctl(skfd, ifname, WLC_SET_GMODE, &val, sizeof(val));
245 if (nvram_match(wl_var("gmode_protection"), "auto")) {
246 override = WLC_G_PROTECTION_AUTO;
247 control = WLC_G_PROTECTION_CTL_OVERLAP;
249 if (nvram_enabled(wl_var("gmode_protection"))) {
250 override = WLC_G_PROTECTION_ON;
251 control = WLC_G_PROTECTION_CTL_OVERLAP;
253 bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_CONTROL, &override, sizeof(control));
254 bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_OVERRIDE, &override, sizeof(override));
258 void set_wext_ssid(int skfd, char *ifname)
263 if (buffer = nvram_get(wl_var("ssid"))) {
264 if (strlen(buffer) > IW_ESSID_MAX_SIZE) {
265 ABORT_ARG_SIZE("Set ESSID", SIOCSIWESSID, IW_ESSID_MAX_SIZE);
267 char essid[IW_ESSID_MAX_SIZE + 1];
269 wrq.u.essid.flags = 1;
270 strcpy(essid, buffer);
271 wrq.u.essid.pointer = (caddr_t) essid;
272 wrq.u.essid.length = strlen(essid) + 1;
273 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWESSID, &wrq, "Set ESSID");
278 void start_bcom(int skfd, char *ifname)
282 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
285 bcom_ioctl(skfd, ifname, WLC_UP, &val, sizeof(val));
287 /* Need to re-set SSID after WLC_UP */
288 set_wext_ssid(skfd, ifname);
291 void setup_wext_wep(int skfd, char *ifname)
297 unsigned char key[IW_ENCODING_TOKEN_MAX];
299 strcpy(keystr, "key1");
300 for (i = 1; i <= 4; i++) {
301 if (keyval = nvram_get(wl_var(keystr))) {
302 keylen = iw_in_key(keyval, key);
305 wrq.u.data.length = keylen;
306 wrq.u.data.pointer = (caddr_t) key;
307 wrq.u.data.flags = i;
308 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
315 i = atoi(nvram_safe_get(wl_var("key")));
316 if (i > 0 && i < 4) {
317 wrq.u.data.flags = i | IW_ENCODE_RESTRICTED;
318 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
322 void setup_wext(int skfd, char *ifname)
328 set_wext_ssid(skfd, ifname);
331 int channel = atoi(nvram_safe_get(wl_var("channel")));
335 wrq.u.freq.flags = 0;
338 wrq.u.freq.flags = IW_FREQ_FIXED;
339 wrq.u.freq.m = channel;
341 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWFREQ, &wrq, "Set Frequency");
343 /* Set operation mode */
344 int ap = 0, infra = 0, wet = 0;
346 ap = (nvram_match(wl_var("mode"), "ap") || nvram_match(wl_var("mode"), "wds"));
347 infra = nvram_enabled(wl_var("infra"));
348 wet = nvram_enabled(wl_var("wet"));
350 wrq.u.mode = (!infra ? IW_MODE_ADHOC : (ap ? IW_MODE_MASTER : (wet ? IW_MODE_REPEAT : IW_MODE_INFRA)));
351 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWMODE, &wrq, "Set Mode");
353 /* Disable radio if wlX_radio is set and not enabled */
354 if (nvram_disabled(wl_var("radio")))
355 wrq.u.txpower.disabled = 1;
357 wrq.u.txpower.disabled = 0;
359 wrq.u.txpower.value = -1;
360 wrq.u.txpower.fixed = 1;
361 wrq.u.txpower.flags = IW_TXPOW_MWATT;
362 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWTXPOW, &wrq, "Set Tx Power");
365 if (nvram_enabled(wl_var("wep")))
366 setup_wext_wep(skfd, ifname);
371 static int setup_interfaces(int skfd, char *ifname, char *args[], int count)
376 /* Avoid "Unused parameter" warning */
377 args = args; count = count;
379 if(iw_get_ext(skfd, ifname, SIOCGIWNAME, &wrq) < 0)
382 setup_bcom(skfd, ifname);
383 setup_wext(skfd, ifname);
384 start_bcom(skfd, ifname);
388 int main(int argc, char **argv)
391 if((skfd = iw_sockets_open()) < 0) {
396 prefix = strdup("wl0_");
397 iw_enum_devices(skfd, &setup_interfaces, NULL, 0);