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)); \
79 void set_wext_ssid(int skfd, char *ifname);
85 char *wl_var(char *name)
87 strcpy(buffer, prefix);
91 int nvram_enabled(char *name)
93 return (nvram_match(name, "1") || nvram_match(name, "on") || nvram_match(name, "enabled") || nvram_match(name, "true") || nvram_match(name, "yes") ? 1 : 0);
96 int nvram_disabled(char *name)
98 return (nvram_match(name, "0") || nvram_match(name, "off") || nvram_match(name, "disabled") || nvram_match(name, "false") || nvram_match(name, "no") ? 1 : 0);
102 int bcom_ioctl(int skfd, char *ifname, int cmd, void *buf, int len)
112 ifr.ifr_data = (caddr_t) &ioc;
113 strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
115 ret = ioctl(skfd, SIOCDEVPRIVATE, &ifr);
120 int bcom_set_val(int skfd, char *ifname, char *var, void *val, int len)
125 if (strlen(var) + 1 > sizeof(buf) || len > sizeof(buf))
129 memcpy(&buf[strlen(var) + 1], val, len);
131 if ((ret = bcom_ioctl(skfd, ifname, WLC_SET_VAR, buf, sizeof(buf))))
137 int bcom_set_int(int skfd, char *ifname, char *var, int val)
139 return bcom_set_val(skfd, ifname, var, &val, sizeof(val));
142 void stop_bcom(int skfd, char *ifname)
147 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
152 bcom_ioctl(skfd, ifname, WLC_SET_SSID, &ssid, sizeof(ssid));
153 bcom_ioctl(skfd, ifname, WLC_DOWN, NULL, 0);
157 void start_bcom(int skfd, char *ifname)
161 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
164 bcom_ioctl(skfd, ifname, WLC_UP, &val, sizeof(val));
165 set_wext_ssid(skfd, ifname);
169 void setup_bcom(int skfd, char *ifname)
177 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
180 nvram_set(wl_var("ifname"), ifname);
182 stop_bcom(skfd, ifname);
185 strncpy(buf, nvram_safe_get(wl_var("country_code")), 4);
187 bcom_ioctl(skfd, ifname, WLC_SET_COUNTRY, buf, 4);
189 /* Set other options */
190 val = nvram_enabled(wl_var("lazywds"));
192 bcom_ioctl(skfd, ifname, WLC_SET_LAZYWDS, &val, sizeof(val));
194 if (v = nvram_get(wl_var("frag"))) {
196 bcom_ioctl(skfd, ifname, WLC_SET_FRAG, &val, sizeof(val));
198 if (v = nvram_get(wl_var("dtim"))) {
200 bcom_ioctl(skfd, ifname, WLC_SET_DTIMPRD, &val, sizeof(val));
202 if (v = nvram_get(wl_var("bcn"))) {
204 bcom_ioctl(skfd, ifname, WLC_SET_BCNPRD, &val, sizeof(val));
206 if (v = nvram_get(wl_var("rts"))) {
208 bcom_ioctl(skfd, ifname, WLC_SET_RTS, &val, sizeof(val));
210 if (v = nvram_get(wl_var("antdiv"))) {
212 bcom_ioctl(skfd, ifname, WLC_SET_ANTDIV, &val, sizeof(val));
214 if (v = nvram_get(wl_var("txant"))) {
216 bcom_ioctl(skfd, ifname, WLC_SET_TXANT, &val, sizeof(val));
219 val = nvram_enabled(wl_var("closed"));
220 bcom_ioctl(skfd, ifname, WLC_SET_CLOSED, &val, sizeof(val));
222 val = nvram_enabled(wl_var("ap_isolate"));
223 bcom_set_int(skfd, ifname, "ap_isolate", val);
225 val = nvram_enabled(wl_var("frameburst"));
226 bcom_ioctl(skfd, ifname, WLC_SET_FAKEFRAG, &val, sizeof(val));
228 /* Set up MAC list */
229 if (nvram_match(wl_var("macmode"), "allow"))
230 val = WLC_MACMODE_ALLOW;
231 else if (nvram_match(wl_var("macmode"), "deny"))
232 val = WLC_MACMODE_DENY;
234 val = WLC_MACMODE_DISABLED;
236 if ((val != WLC_MACMODE_DISABLED) && (v = nvram_get(wl_var("maclist")))) {
237 struct maclist *mac_list;
238 struct ether_addr *addr;
241 memset(buf, 0, 8192);
242 mac_list = (struct maclist *) buf;
245 foreach(wbuf, v, next) {
246 if (ether_atoe(wbuf, addr->ether_addr_octet)) {
251 bcom_ioctl(skfd, ifname, WLC_SET_MACLIST, buf, sizeof(buf));
253 val = WLC_MACMODE_DISABLED;
255 bcom_ioctl(skfd, ifname, WLC_SET_MACMODE, &val, sizeof(val));
257 if (v = nvram_get(wl_var("wds"))) {
258 struct maclist *wdslist = (struct maclist *) buf;
259 struct ether_addr *addr = wdslist->ea;
262 memset(buf, 0, 8192);
263 foreach(wbuf, v, next) {
264 if (ether_atoe(wbuf, addr->ether_addr_octet)) {
270 bcom_ioctl(skfd, ifname, WLC_SET_WDSLIST, buf, sizeof(buf));
273 /* Set up afterburner, disabled it if WDS is enabled */
278 if (nvram_enabled(wl_var("afterburner")))
280 if (nvram_disabled(wl_var("afterburner")))
284 bcom_set_val(skfd, ifname, "afterburner_override", &val, sizeof(val));
287 bcom_ioctl(skfd, ifname, WLC_GET_PHYTYPE, &val, sizeof(val));
289 int override = WLC_G_PROTECTION_OFF;
290 int control = WLC_G_PROTECTION_CTL_OFF;
292 if (v = nvram_get(wl_var("gmode")))
300 bcom_ioctl(skfd, ifname, WLC_SET_GMODE, &val, sizeof(val));
302 if (nvram_match(wl_var("gmode_protection"), "auto")) {
303 override = WLC_G_PROTECTION_AUTO;
304 control = WLC_G_PROTECTION_CTL_OVERLAP;
306 if (nvram_enabled(wl_var("gmode_protection"))) {
307 override = WLC_G_PROTECTION_ON;
308 control = WLC_G_PROTECTION_CTL_OVERLAP;
310 bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_CONTROL, &override, sizeof(control));
311 bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_OVERRIDE, &override, sizeof(override));
314 if (nvram_match(wl_var("plcphdr"), "long"))
317 val = WLC_PLCP_SHORT;
319 bcom_ioctl(skfd, ifname, WLC_SET_PLCPHDR, &val, sizeof(val));
323 start_bcom(skfd, ifname);
325 if (!(v = nvram_get(wl_var("akm"))))
326 v = nvram_safe_get(wl_var("auth_mode"));
328 if (strstr(v, "wpa") || strstr(v, "psk")) {
332 if (nvram_match(wl_var("crypto"), "tkip"))
334 else if (nvram_match(wl_var("crypto"), "aes"))
336 else if (nvram_match(wl_var("crypto"), "tkip+aes") || nvram_match(wl_var("crypto"), "aes+tkip"))
337 val = TKIP_ENABLED | AES_ENABLED;
340 bcom_ioctl(skfd, ifname, WLC_SET_WSEC, &val, sizeof(val));
342 if (val && strstr(v, "psk")) {
343 v = nvram_safe_get(wl_var("wpa_psk"));
345 if ((strlen(v) >= 8) && (strlen(v) < 63)) {
347 bcom_ioctl(skfd, ifname, WLC_SET_WPA_AUTH, &val, sizeof(val));
349 bcom_ioctl(skfd, ifname, WLC_GET_AP, &val, sizeof(val));
351 /* Enable in-driver WPA supplicant */
354 pmk.key_len = (unsigned short) strlen(v);
355 pmk.flags = WSEC_PASSPHRASE;
357 bcom_ioctl(skfd, ifname, WLC_SET_WSEC_PMK, &pmk, sizeof(pmk));
358 bcom_set_int(skfd, ifname, "sup_wpa", 1);
363 bcom_ioctl(skfd, ifname, WLC_SET_EAP_RESTRICT, &val, sizeof(val));
368 bcom_ioctl(skfd, ifname, WLC_SET_WSEC, &val, sizeof(val));
369 bcom_ioctl(skfd, ifname, WLC_SET_WPA_AUTH, &val, sizeof(val));
370 bcom_ioctl(skfd, ifname, WLC_SET_EAP_RESTRICT, &val, sizeof(val));
371 bcom_set_int(skfd, ifname, "sup_wpa", 0);
375 void set_wext_ssid(int skfd, char *ifname)
378 char essid[IW_ESSID_MAX_SIZE + 1];
381 buffer = nvram_get(wl_var("ssid"));
383 if (!buffer || (strlen(buffer) > IW_ESSID_MAX_SIZE))
386 wrq.u.essid.flags = 1;
387 strcpy(essid, buffer);
388 wrq.u.essid.pointer = (caddr_t) essid;
389 wrq.u.essid.length = strlen(essid) + 1;
390 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWESSID, &wrq, "Set ESSID");
393 void setup_wext_wep(int skfd, char *ifname)
399 unsigned char key[IW_ENCODING_TOKEN_MAX];
401 memset(&wrq, 0, sizeof(wrq));
402 strcpy(keystr, "key1");
403 for (i = 1; i <= 4; i++) {
404 if (keyval = nvram_get(wl_var(keystr))) {
405 keylen = iw_in_key(keyval, key);
408 wrq.u.data.length = keylen;
409 wrq.u.data.pointer = (caddr_t) key;
410 wrq.u.data.flags = i;
411 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
417 memset(&wrq, 0, sizeof(wrq));
418 i = atoi(nvram_safe_get(wl_var("key")));
419 if (i > 0 && i < 4) {
420 wrq.u.data.flags = i | IW_ENCODE_RESTRICTED;
421 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
425 void set_wext_mode(skfd, ifname)
428 int ap = 0, infra = 0, wet = 0;
430 /* Set operation mode */
431 ap = !nvram_match(wl_var("mode"), "sta") && !nvram_match(wl_var("mode"), "wet");
432 infra = !nvram_disabled(wl_var("infra"));
433 wet = !ap && !nvram_disabled(wl_var("wet"));
435 wrq.u.mode = (!infra ? IW_MODE_ADHOC : (ap ? IW_MODE_MASTER : (wet ? IW_MODE_REPEAT : IW_MODE_INFRA)));
436 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWMODE, &wrq, "Set Mode");
439 void setup_wext(int skfd, char *ifname)
445 int channel = atoi(nvram_safe_get(wl_var("channel")));
449 wrq.u.freq.flags = 0;
452 wrq.u.freq.flags = IW_FREQ_FIXED;
453 wrq.u.freq.m = channel;
454 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWFREQ, &wrq, "Set Frequency");
458 /* Disable radio if wlX_radio is set and not enabled */
459 wrq.u.txpower.disabled = nvram_disabled(wl_var("radio"));
461 wrq.u.txpower.value = -1;
462 wrq.u.txpower.fixed = 1;
463 wrq.u.txpower.flags = IW_TXPOW_DBM;
464 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWTXPOW, &wrq, "Set Tx Power");
467 if (nvram_enabled(wl_var("wep")) && !wpa_enc)
468 setup_wext_wep(skfd, ifname);
471 set_wext_ssid(skfd, ifname);
476 static int setup_interfaces(int skfd, char *ifname, char *args[], int count)
481 /* Avoid "Unused parameter" warning */
482 args = args; count = count;
484 if(iw_get_ext(skfd, ifname, SIOCGIWNAME, &wrq) < 0)
487 if (strncmp(ifname, "ath", 3) == 0) {
488 set_wext_mode(skfd, ifname);
489 setup_wext(skfd, ifname);
491 stop_bcom(skfd, ifname);
492 set_wext_mode(skfd, ifname);
493 setup_bcom(skfd, ifname);
494 setup_wext(skfd, ifname);
500 int main(int argc, char **argv)
503 if((skfd = iw_sockets_open()) < 0) {
508 prefix = strdup("wl0_");
509 iw_enum_devices(skfd, &setup_interfaces, NULL, 0);