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"); \
41 #define ABORT_ARG_TYPE(rname, request, arg) \
43 ERR_SET_EXT(rname, request); \
44 fprintf(stderr, " invalid argument \"%s\".\n", arg); \
47 #define ABORT_ARG_SIZE(rname, request, max) \
49 ERR_SET_EXT(rname, request); \
50 fprintf(stderr, " argument too big (max %d)\n", max); \
53 /*------------------------------------------------------------------*/
55 * Wrapper to push some Wireless Parameter in the driver
56 * Use standard wrapper and add pretty error message if fail...
58 #define IW_SET_EXT_ERR(skfd, ifname, request, wrq, rname) \
60 if(iw_set_ext(skfd, ifname, request, wrq) < 0) { \
61 ERR_SET_EXT(rname, request); \
62 fprintf(stderr, " SET failed on device %-1.16s ; %s.\n", \
63 ifname, strerror(errno)); \
66 /*------------------------------------------------------------------*/
68 * Wrapper to extract some Wireless Parameter out of the driver
69 * Use standard wrapper and add pretty error message if fail...
71 #define IW_GET_EXT_ERR(skfd, ifname, request, wrq, rname) \
73 if(iw_get_ext(skfd, ifname, request, wrq) < 0) { \
74 ERR_SET_EXT(rname, request); \
75 fprintf(stderr, " GET failed on device %-1.16s ; %s.\n", \
76 ifname, strerror(errno)); \
82 char *wl_var(char *name)
84 strcpy(buffer, prefix);
88 int nvram_enabled(char *name)
90 return (nvram_match(name, "1") || nvram_match(name, "on") || nvram_match(name, "enabled") || nvram_match(name, "true") || nvram_match(name, "yes") ? 1 : 0);
93 int nvram_disabled(char *name)
95 return (nvram_match(name, "0") || nvram_match(name, "off") || nvram_match(name, "disabled") || nvram_match(name, "false") || nvram_match(name, "no") ? 1 : 0);
99 int bcom_ioctl(int skfd, char *ifname, int cmd, void *buf, int len)
109 ifr.ifr_data = (caddr_t) &ioc;
110 strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
112 ret = ioctl(skfd, SIOCDEVPRIVATE, &ifr);
117 int bcom_set_val(int skfd, char *ifname, char *var, void *val, int len)
122 if (strlen(var) + 1 > sizeof(buf) || len > sizeof(buf))
127 if ((ret = bcom_ioctl(skfd, ifname, WLC_GET_VAR, buf, sizeof(buf))))
130 memcpy(val, buf, len);
134 int bcom_set_int(int skfd, char *ifname, char *var, int val)
136 return bcom_set_val(skfd, ifname, var, &val, sizeof(val));
139 void setup_bcom(int skfd, char *ifname)
146 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
149 bcom_ioctl(skfd, ifname, WLC_DOWN, NULL, 0);
151 if (nvram_match(wl_var("auth_mode"), "wpa") || nvram_match(wl_var("auth_mode"), "psk") || (nvram_get(wl_var("akm")) && !nvram_disabled(wl_var("akm")))) {
153 if (nvram_match(wl_var("crypto"), "tkip"))
155 else if (nvram_match(wl_var("crypto"), "aes"))
157 else if (nvram_match(wl_var("crypto"), "tkip+aes"))
158 val = TKIP_ENABLED | AES_ENABLED;
161 bcom_ioctl(skfd, ifname, WLC_SET_WSEC, &val, sizeof(val));
163 if (val && nvram_get(wl_var("wpa_psk"))) {
165 bcom_ioctl(skfd, ifname, WLC_SET_EAP_RESTRICT, &val, sizeof(val));
169 /* Set up afterburner */
171 if (nvram_enabled(wl_var("afterburner")))
173 if (nvram_disabled(wl_var("afterburner")))
175 bcom_set_val(skfd, ifname, "afterburner_override", &val, sizeof(val));
177 /* Set other options */
178 if (v = nvram_get(wl_var("lazywds"))) {
180 bcom_ioctl(skfd, ifname, WLC_SET_LAZYWDS, &val, sizeof(val));
182 if (v = nvram_get(wl_var("frag"))) {
184 bcom_ioctl(skfd, ifname, WLC_SET_FRAG, &val, sizeof(val));
186 if (v = nvram_get(wl_var("dtim"))) {
188 bcom_ioctl(skfd, ifname, WLC_SET_DTIMPRD, &val, sizeof(val));
190 if (v = nvram_get(wl_var("bcn"))) {
192 bcom_ioctl(skfd, ifname, WLC_SET_BCNPRD, &val, sizeof(val));
194 if (v = nvram_get(wl_var("rts"))) {
196 bcom_ioctl(skfd, ifname, WLC_SET_RTS, &val, sizeof(val));
198 if (v = nvram_get(wl_var("antdiv"))) {
200 bcom_ioctl(skfd, ifname, WLC_SET_ANTDIV, &val, sizeof(val));
202 if (v = nvram_get(wl_var("txant"))) {
204 bcom_ioctl(skfd, ifname, WLC_SET_TXANT, &val, sizeof(val));
207 val = nvram_enabled(wl_var("closed"));
208 bcom_ioctl(skfd, ifname, WLC_SET_CLOSED, &val, sizeof(val));
210 val = nvram_enabled(wl_var("ap_isolate"));
211 bcom_set_int(skfd, ifname, "ap_isolate", val);
213 val = nvram_enabled(wl_var("frameburst"));
214 bcom_ioctl(skfd, ifname, WLC_SET_FAKEFRAG, &val, sizeof(val));
216 /* Set up MAC list */
217 if (nvram_match(wl_var("macmode"), "allow"))
218 val = WLC_MACMODE_ALLOW;
219 else if (nvram_match(wl_var("macmode"), "deny"))
220 val = WLC_MACMODE_DENY;
222 val = WLC_MACMODE_DISABLED;
224 if ((val != WLC_MACMODE_DISABLED) && (v = nvram_get(wl_var("maclist")))) {
225 struct maclist *mac_list;
226 struct ether_addr *addr;
229 memset(buf, 0, 8192);
230 mac_list = (struct maclist *) buf;
233 foreach(wbuf, v, next) {
234 if (ether_atoe(wbuf, addr->ether_addr_octet)) {
239 bcom_ioctl(skfd, ifname, WLC_SET_MACLIST, buf, sizeof(buf));
241 val = WLC_MACMODE_DISABLED;
243 bcom_ioctl(skfd, ifname, WLC_SET_MACMODE, &val, sizeof(val));
245 if (v = nvram_get(wl_var("wds"))) {
246 struct maclist *wdslist = (struct maclist *) buf;
247 struct ether_addr *addr = wdslist->ea;
250 memset(buf, 0, 8192);
251 foreach(wbuf, v, next) {
252 if (ether_atoe(wbuf, addr->ether_addr_octet)) {
257 bcom_ioctl(skfd, ifname, WLC_SET_WDSLIST, buf, sizeof(buf));
261 bcom_ioctl(skfd, ifname, WLC_GET_PHYTYPE, &val, sizeof(val));
263 int override = WLC_G_PROTECTION_OFF;
264 int control = WLC_G_PROTECTION_CTL_OFF;
266 if (v = nvram_get(wl_var("gmode")))
274 bcom_ioctl(skfd, ifname, WLC_SET_GMODE, &val, sizeof(val));
276 if (nvram_match(wl_var("gmode_protection"), "auto")) {
277 override = WLC_G_PROTECTION_AUTO;
278 control = WLC_G_PROTECTION_CTL_OVERLAP;
280 if (nvram_enabled(wl_var("gmode_protection"))) {
281 override = WLC_G_PROTECTION_ON;
282 control = WLC_G_PROTECTION_CTL_OVERLAP;
284 bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_CONTROL, &override, sizeof(control));
285 bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_OVERRIDE, &override, sizeof(override));
288 if (nvram_match(wl_var("plcphdr"), "long"))
291 val = WLC_PLCP_SHORT;
293 bcom_ioctl(skfd, ifname, WLC_SET_PLCPHDR, &val, sizeof(val));
299 void set_wext_ssid(int skfd, char *ifname)
304 if (buffer = nvram_get(wl_var("ssid"))) {
305 if (strlen(buffer) > IW_ESSID_MAX_SIZE) {
306 ABORT_ARG_SIZE("Set ESSID", SIOCSIWESSID, IW_ESSID_MAX_SIZE);
308 char essid[IW_ESSID_MAX_SIZE + 1];
310 wrq.u.essid.flags = 1;
311 strcpy(essid, buffer);
312 wrq.u.essid.pointer = (caddr_t) essid;
313 wrq.u.essid.length = strlen(essid) + 1;
314 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWESSID, &wrq, "Set ESSID");
319 void start_bcom(int skfd, char *ifname)
323 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
326 bcom_ioctl(skfd, ifname, WLC_UP, &val, sizeof(val));
328 /* Need to re-set SSID after WLC_UP */
329 set_wext_ssid(skfd, ifname);
332 void setup_wext_wep(int skfd, char *ifname)
338 unsigned char key[IW_ENCODING_TOKEN_MAX];
340 strcpy(keystr, "key1");
341 for (i = 1; i <= 4; i++) {
342 if (keyval = nvram_get(wl_var(keystr))) {
343 keylen = iw_in_key(keyval, key);
346 wrq.u.data.length = keylen;
347 wrq.u.data.pointer = (caddr_t) key;
348 wrq.u.data.flags = i;
349 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
356 i = atoi(nvram_safe_get(wl_var("key")));
357 if (i > 0 && i < 4) {
358 wrq.u.data.flags = i | IW_ENCODE_RESTRICTED;
359 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
363 void setup_wext(int skfd, char *ifname)
369 set_wext_ssid(skfd, ifname);
372 int channel = atoi(nvram_safe_get(wl_var("channel")));
376 wrq.u.freq.flags = 0;
379 wrq.u.freq.flags = IW_FREQ_FIXED;
380 wrq.u.freq.m = channel;
381 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWFREQ, &wrq, "Set Frequency");
384 /* Set operation mode */
385 int ap = 0, infra = 0, wet = 0;
387 ap = !nvram_match(wl_var("mode"), "sta");
388 infra = !nvram_disabled(wl_var("infra"));
389 wet = nvram_enabled(wl_var("wet"));
391 wrq.u.mode = (!infra ? IW_MODE_ADHOC : (ap ? IW_MODE_MASTER : (wet ? IW_MODE_REPEAT : IW_MODE_INFRA)));
392 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWMODE, &wrq, "Set Mode");
394 /* Disable radio if wlX_radio is set and not enabled */
395 wrq.u.txpower.disabled = nvram_disabled(wl_var("radio"));
397 wrq.u.txpower.value = -1;
398 wrq.u.txpower.fixed = 1;
399 wrq.u.txpower.flags = IW_TXPOW_DBM;
400 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWTXPOW, &wrq, "Set Tx Power");
403 if (nvram_enabled(wl_var("wep")))
404 setup_wext_wep(skfd, ifname);
409 static int setup_interfaces(int skfd, char *ifname, char *args[], int count)
414 /* Avoid "Unused parameter" warning */
415 args = args; count = count;
417 if(iw_get_ext(skfd, ifname, SIOCGIWNAME, &wrq) < 0)
420 setup_bcom(skfd, ifname);
421 setup_wext(skfd, ifname);
422 start_bcom(skfd, ifname);
426 int main(int argc, char **argv)
429 if((skfd = iw_sockets_open()) < 0) {
434 prefix = strdup("wl0_");
435 iw_enum_devices(skfd, &setup_interfaces, NULL, 0);