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.
25 /*------------------------------------------------------------------*/
27 * Macro to handle errors when setting WE
28 * Print a nice error message and exit...
29 * We define them as macro so that "return" do the right thing.
30 * The "do {...} while(0)" is a standard trick
32 #define ERR_SET_EXT(rname, request) \
33 fprintf(stderr, "Error for wireless request \"%s\" (%X) :\n", \
36 #define ABORT_ARG_NUM(rname, request) \
38 ERR_SET_EXT(rname, request); \
39 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); \
48 #define ABORT_ARG_SIZE(rname, request, max) \
50 ERR_SET_EXT(rname, request); \
51 fprintf(stderr, " argument too big (max %d)\n", max); \
54 /*------------------------------------------------------------------*/
56 * Wrapper to push some Wireless Parameter in the driver
57 * Use standard wrapper and add pretty error message if fail...
59 #define IW_SET_EXT_ERR(skfd, ifname, request, wrq, rname) \
61 if(iw_set_ext(skfd, ifname, request, wrq) < 0) { \
62 ERR_SET_EXT(rname, request); \
63 fprintf(stderr, " SET failed on device %-1.16s ; %s.\n", \
64 ifname, strerror(errno)); \
67 /*------------------------------------------------------------------*/
69 * Wrapper to extract some Wireless Parameter out of the driver
70 * Use standard wrapper and add pretty error message if fail...
72 #define IW_GET_EXT_ERR(skfd, ifname, request, wrq, rname) \
74 if(iw_get_ext(skfd, ifname, request, wrq) < 0) { \
75 ERR_SET_EXT(rname, request); \
76 fprintf(stderr, " GET failed on device %-1.16s ; %s.\n", \
77 ifname, strerror(errno)); \
80 static void set_wext_ssid(int skfd, char *ifname);
83 static char buffer[128];
84 static int wpa_enc = 0;
86 static char *wl_var(char *name)
88 strcpy(buffer, prefix);
92 static int nvram_enabled(char *name)
94 return (nvram_match(name, "1") || nvram_match(name, "on") || nvram_match(name, "enabled") || nvram_match(name, "true") || nvram_match(name, "yes") ? 1 : 0);
97 static int nvram_disabled(char *name)
99 return (nvram_match(name, "0") || nvram_match(name, "off") || nvram_match(name, "disabled") || nvram_match(name, "false") || nvram_match(name, "no") ? 1 : 0);
103 static int bcom_ioctl(int skfd, char *ifname, int cmd, void *buf, int len)
113 ifr.ifr_data = (caddr_t) &ioc;
114 strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
116 ret = ioctl(skfd, SIOCDEVPRIVATE, &ifr);
121 static int bcom_set_val(int skfd, char *ifname, char *var, void *val, int len)
126 if (strlen(var) + 1 > sizeof(buf) || len > sizeof(buf))
130 memcpy(&buf[strlen(var) + 1], val, len);
132 if ((ret = bcom_ioctl(skfd, ifname, WLC_SET_VAR, buf, sizeof(buf))))
138 static int bcom_set_int(int skfd, char *ifname, char *var, int val)
140 return bcom_set_val(skfd, ifname, var, &val, sizeof(val));
143 static void stop_bcom(int skfd, char *ifname)
148 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
153 bcom_ioctl(skfd, ifname, WLC_SET_SSID, &ssid, sizeof(ssid));
154 bcom_ioctl(skfd, ifname, WLC_DOWN, NULL, 0);
158 static void start_bcom(int skfd, char *ifname)
162 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
165 bcom_ioctl(skfd, ifname, WLC_UP, &val, sizeof(val));
166 set_wext_ssid(skfd, ifname);
169 static int setup_bcom_wds(int skfd, char *ifname)
176 if (v = nvram_get(wl_var("wds"))) {
177 struct maclist *wdslist = (struct maclist *) buf;
178 struct ether_addr *addr = wdslist->ea;
181 memset(buf, 0, 8192);
182 foreach(wbuf, v, next) {
183 if (ether_atoe(wbuf, addr->ether_addr_octet)) {
189 bcom_ioctl(skfd, ifname, WLC_SET_WDSLIST, buf, sizeof(buf));
194 void start_watchdog(int skfd, char *ifname)
197 unsigned char buf[8192], buf2[8192], wbuf[80], *v, *p, *next, *tmp;
198 int wds = 0, i, restart_wds;
203 system("kill $(cat /var/run/wifi.pid) 2>&- >&-");
204 f = fopen("/var/run/wifi.pid", "w");
205 fprintf(f, "%d\n", getpid());
208 v = nvram_safe_get(wl_var("wds"));
209 memset(buf2, 0, 8192);
211 foreach(wbuf, v, next) {
212 if (ether_atoe(wbuf, p)) {
217 v = nvram_safe_get(wl_var("ssid"));
221 if (bcom_ioctl(skfd, ifname, WLC_GET_BSSID, buf, 6) < 0)
222 bcom_ioctl(skfd, ifname, WLC_SET_SSID, v, strlen(v));
225 for (i = 0; i < wds; i++) {
226 memset(buf, 0, 8192);
227 strcpy(buf, "sta_info");
228 memcpy(buf + strlen(buf) + 1, p, 6);
229 if (bcom_ioctl(skfd, ifname, WLC_GET_VAR, buf, 8192) < 0) {
231 sta_info_t *sta = (sta_info_t *) (buf + 4);
232 if (!(sta->flags & 0x40)) {
241 setup_bcom_wds(skfd, ifname);
245 static void setup_bcom(int skfd, char *ifname)
253 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
256 nvram_set(wl_var("ifname"), ifname);
258 stop_bcom(skfd, ifname);
261 strncpy(buf, nvram_safe_get(wl_var("country_code")), 4);
263 bcom_ioctl(skfd, ifname, WLC_SET_COUNTRY, buf, 4);
265 /* Set other options */
266 val = nvram_enabled(wl_var("lazywds"));
268 bcom_ioctl(skfd, ifname, WLC_SET_LAZYWDS, &val, sizeof(val));
270 if (v = nvram_get(wl_var("frag"))) {
272 bcom_ioctl(skfd, ifname, WLC_SET_FRAG, &val, sizeof(val));
274 if (v = nvram_get(wl_var("dtim"))) {
276 bcom_ioctl(skfd, ifname, WLC_SET_DTIMPRD, &val, sizeof(val));
278 if (v = nvram_get(wl_var("bcn"))) {
280 bcom_ioctl(skfd, ifname, WLC_SET_BCNPRD, &val, sizeof(val));
282 if (v = nvram_get(wl_var("rts"))) {
284 bcom_ioctl(skfd, ifname, WLC_SET_RTS, &val, sizeof(val));
286 if (v = nvram_get(wl_var("antdiv"))) {
288 bcom_ioctl(skfd, ifname, WLC_SET_ANTDIV, &val, sizeof(val));
290 if (v = nvram_get(wl_var("txant"))) {
292 bcom_ioctl(skfd, ifname, WLC_SET_TXANT, &val, sizeof(val));
295 val = nvram_enabled(wl_var("closed"));
296 bcom_ioctl(skfd, ifname, WLC_SET_CLOSED, &val, sizeof(val));
298 val = nvram_enabled(wl_var("ap_isolate"));
299 bcom_set_int(skfd, ifname, "ap_isolate", val);
301 val = nvram_enabled(wl_var("frameburst"));
302 bcom_ioctl(skfd, ifname, WLC_SET_FAKEFRAG, &val, sizeof(val));
304 /* Set up MAC list */
305 if (nvram_match(wl_var("macmode"), "allow"))
306 val = WLC_MACMODE_ALLOW;
307 else if (nvram_match(wl_var("macmode"), "deny"))
308 val = WLC_MACMODE_DENY;
310 val = WLC_MACMODE_DISABLED;
312 if ((val != WLC_MACMODE_DISABLED) && (v = nvram_get(wl_var("maclist")))) {
313 struct maclist *mac_list;
314 struct ether_addr *addr;
317 memset(buf, 0, 8192);
318 mac_list = (struct maclist *) buf;
321 foreach(wbuf, v, next) {
322 if (ether_atoe(wbuf, addr->ether_addr_octet)) {
327 bcom_ioctl(skfd, ifname, WLC_SET_MACLIST, buf, sizeof(buf));
329 val = WLC_MACMODE_DISABLED;
331 bcom_ioctl(skfd, ifname, WLC_SET_MACMODE, &val, sizeof(val));
333 if (ap = !nvram_match(wl_var("mode"), "sta") && !nvram_match(wl_var("mode"), "wet"))
334 wds_enabled = setup_bcom_wds(skfd, ifname);
336 if (!ap || wds_enabled)
337 start_watchdog(skfd, ifname);
339 /* Set up afterburner, disabled it if WDS is enabled */
344 if (nvram_enabled(wl_var("afterburner")))
346 if (nvram_disabled(wl_var("afterburner")))
350 bcom_set_val(skfd, ifname, "afterburner_override", &val, sizeof(val));
353 bcom_ioctl(skfd, ifname, WLC_GET_PHYTYPE, &val, sizeof(val));
355 int override = WLC_G_PROTECTION_OFF;
356 int control = WLC_G_PROTECTION_CTL_OFF;
358 if (v = nvram_get(wl_var("gmode")))
366 bcom_ioctl(skfd, ifname, WLC_SET_GMODE, &val, sizeof(val));
368 if (nvram_match(wl_var("gmode_protection"), "auto")) {
369 override = WLC_G_PROTECTION_AUTO;
370 control = WLC_G_PROTECTION_CTL_OVERLAP;
372 if (nvram_enabled(wl_var("gmode_protection"))) {
373 override = WLC_G_PROTECTION_ON;
374 control = WLC_G_PROTECTION_CTL_OVERLAP;
376 bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_CONTROL, &override, sizeof(control));
377 bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_OVERRIDE, &override, sizeof(override));
380 if (nvram_match(wl_var("plcphdr"), "long"))
383 val = WLC_PLCP_SHORT;
385 bcom_ioctl(skfd, ifname, WLC_SET_PLCPHDR, &val, sizeof(val));
389 start_bcom(skfd, ifname);
391 if (!(v = nvram_get(wl_var("akm"))))
392 v = nvram_safe_get(wl_var("auth_mode"));
394 if (strstr(v, "wpa") || strstr(v, "psk")) {
398 if (nvram_match(wl_var("crypto"), "tkip"))
400 else if (nvram_match(wl_var("crypto"), "aes"))
402 else if (nvram_match(wl_var("crypto"), "tkip+aes") || nvram_match(wl_var("crypto"), "aes+tkip"))
403 val = TKIP_ENABLED | AES_ENABLED;
406 bcom_ioctl(skfd, ifname, WLC_SET_WSEC, &val, sizeof(val));
408 if (val && strstr(v, "psk")) {
409 val = (strstr(v, "psk2") ? 0x84 : 0x4);
410 v = nvram_safe_get(wl_var("wpa_psk"));
411 if ((strlen(v) >= 8) && (strlen(v) < 63)) {
413 bcom_ioctl(skfd, ifname, WLC_SET_WPA_AUTH, &val, sizeof(val));
415 if (!nvram_match(wl_var("mode"), "wet")) {
416 /* Enable in-driver WPA supplicant */
419 pmk.key_len = (unsigned short) strlen(v);
420 pmk.flags = WSEC_PASSPHRASE;
422 bcom_ioctl(skfd, ifname, WLC_SET_WSEC_PMK, &pmk, sizeof(pmk));
423 bcom_set_int(skfd, ifname, "sup_wpa", 1);
428 bcom_ioctl(skfd, ifname, WLC_SET_EAP_RESTRICT, &val, sizeof(val));
433 bcom_ioctl(skfd, ifname, WLC_SET_WSEC, &val, sizeof(val));
434 bcom_ioctl(skfd, ifname, WLC_SET_WPA_AUTH, &val, sizeof(val));
435 bcom_ioctl(skfd, ifname, WLC_SET_EAP_RESTRICT, &val, sizeof(val));
436 bcom_set_int(skfd, ifname, "sup_wpa", 0);
440 static void set_wext_ssid(int skfd, char *ifname)
443 char essid[IW_ESSID_MAX_SIZE + 1];
446 buffer = nvram_get(wl_var("ssid"));
448 if (!buffer || (strlen(buffer) > IW_ESSID_MAX_SIZE))
451 wrq.u.essid.flags = 1;
452 strcpy(essid, buffer);
453 wrq.u.essid.pointer = (caddr_t) essid;
454 wrq.u.essid.length = strlen(essid) + 1;
455 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWESSID, &wrq, "Set ESSID");
458 static void setup_wext_wep(int skfd, char *ifname)
464 unsigned char key[IW_ENCODING_TOKEN_MAX];
466 memset(&wrq, 0, sizeof(wrq));
467 strcpy(keystr, "key1");
468 for (i = 1; i <= 4; i++) {
469 if (keyval = nvram_get(wl_var(keystr))) {
470 keylen = iw_in_key(keyval, key);
473 wrq.u.data.length = keylen;
474 wrq.u.data.pointer = (caddr_t) key;
475 wrq.u.data.flags = i;
476 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
482 memset(&wrq, 0, sizeof(wrq));
483 i = atoi(nvram_safe_get(wl_var("key")));
484 if (i > 0 && i < 4) {
485 wrq.u.data.flags = i | IW_ENCODE_RESTRICTED;
486 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
490 static void set_wext_mode(skfd, ifname)
493 int ap = 0, infra = 0, wet = 0;
495 /* Set operation mode */
496 ap = !nvram_match(wl_var("mode"), "sta") && !nvram_match(wl_var("mode"), "wet");
497 infra = !nvram_disabled(wl_var("infra"));
498 wet = !ap && nvram_match(wl_var("mode"), "wet");
500 wrq.u.mode = (!infra ? IW_MODE_ADHOC : (ap ? IW_MODE_MASTER : (wet ? IW_MODE_REPEAT : IW_MODE_INFRA)));
501 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWMODE, &wrq, "Set Mode");
504 static void setup_wext(int skfd, char *ifname)
510 int channel = atoi(nvram_safe_get(wl_var("channel")));
514 wrq.u.freq.flags = 0;
517 wrq.u.freq.flags = IW_FREQ_FIXED;
518 wrq.u.freq.m = channel;
519 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWFREQ, &wrq, "Set Frequency");
523 /* Disable radio if wlX_radio is set and not enabled */
524 wrq.u.txpower.disabled = nvram_disabled(wl_var("radio"));
526 wrq.u.txpower.value = -1;
527 wrq.u.txpower.fixed = 1;
528 wrq.u.txpower.flags = IW_TXPOW_DBM;
529 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWTXPOW, &wrq, "Set Tx Power");
532 if (nvram_enabled(wl_var("wep")) && !wpa_enc)
533 setup_wext_wep(skfd, ifname);
536 set_wext_ssid(skfd, ifname);
540 static int setup_interfaces(int skfd, char *ifname, char *args[], int count)
545 /* Avoid "Unused parameter" warning */
546 args = args; count = count;
548 if(iw_get_ext(skfd, ifname, SIOCGIWNAME, &wrq) < 0)
551 if (strncmp(ifname, "ath", 3) == 0) {
552 set_wext_mode(skfd, ifname);
553 setup_wext(skfd, ifname);
555 stop_bcom(skfd, ifname);
556 set_wext_mode(skfd, ifname);
557 setup_bcom(skfd, ifname);
558 setup_wext(skfd, ifname);
564 int main(int argc, char **argv)
567 if((skfd = iw_sockets_open()) < 0) {
572 prefix = strdup("wl0_");
573 iw_enum_devices(skfd, &setup_interfaces, NULL, 0);