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))
130 if ((ret = bcom_ioctl(skfd, ifname, WLC_SET_VAR, buf, sizeof(buf))))
133 memcpy(val, buf, len);
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)
176 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
179 stop_bcom(skfd, ifname);
182 strncpy(buf, nvram_safe_get(wl_var("country_code")), 4);
184 bcom_ioctl(skfd, ifname, WLC_SET_COUNTRY, buf, 4);
186 /* Set up afterburner */
188 if (nvram_enabled(wl_var("afterburner")))
190 if (nvram_disabled(wl_var("afterburner")))
192 bcom_set_val(skfd, ifname, "afterburner_override", &val, sizeof(val));
194 /* Set other options */
195 val = nvram_enabled(wl_var("lazywds"));
196 bcom_ioctl(skfd, ifname, WLC_SET_LAZYWDS, &val, sizeof(val));
198 if (v = nvram_get(wl_var("frag"))) {
200 bcom_ioctl(skfd, ifname, WLC_SET_FRAG, &val, sizeof(val));
202 if (v = nvram_get(wl_var("dtim"))) {
204 bcom_ioctl(skfd, ifname, WLC_SET_DTIMPRD, &val, sizeof(val));
206 if (v = nvram_get(wl_var("bcn"))) {
208 bcom_ioctl(skfd, ifname, WLC_SET_BCNPRD, &val, sizeof(val));
210 if (v = nvram_get(wl_var("rts"))) {
212 bcom_ioctl(skfd, ifname, WLC_SET_RTS, &val, sizeof(val));
214 if (v = nvram_get(wl_var("antdiv"))) {
216 bcom_ioctl(skfd, ifname, WLC_SET_ANTDIV, &val, sizeof(val));
218 if (v = nvram_get(wl_var("txant"))) {
220 bcom_ioctl(skfd, ifname, WLC_SET_TXANT, &val, sizeof(val));
223 val = nvram_enabled(wl_var("closed"));
224 bcom_ioctl(skfd, ifname, WLC_SET_CLOSED, &val, sizeof(val));
226 val = nvram_enabled(wl_var("ap_isolate"));
227 bcom_set_int(skfd, ifname, "ap_isolate", val);
229 val = nvram_enabled(wl_var("frameburst"));
230 bcom_ioctl(skfd, ifname, WLC_SET_FAKEFRAG, &val, sizeof(val));
232 /* Set up MAC list */
233 if (nvram_match(wl_var("macmode"), "allow"))
234 val = WLC_MACMODE_ALLOW;
235 else if (nvram_match(wl_var("macmode"), "deny"))
236 val = WLC_MACMODE_DENY;
238 val = WLC_MACMODE_DISABLED;
240 if ((val != WLC_MACMODE_DISABLED) && (v = nvram_get(wl_var("maclist")))) {
241 struct maclist *mac_list;
242 struct ether_addr *addr;
245 memset(buf, 0, 8192);
246 mac_list = (struct maclist *) buf;
249 foreach(wbuf, v, next) {
250 if (ether_atoe(wbuf, addr->ether_addr_octet)) {
255 bcom_ioctl(skfd, ifname, WLC_SET_MACLIST, buf, sizeof(buf));
257 val = WLC_MACMODE_DISABLED;
259 bcom_ioctl(skfd, ifname, WLC_SET_MACMODE, &val, sizeof(val));
261 if (v = nvram_get(wl_var("wds"))) {
262 struct maclist *wdslist = (struct maclist *) buf;
263 struct ether_addr *addr = wdslist->ea;
266 memset(buf, 0, 8192);
267 foreach(wbuf, v, next) {
268 if (ether_atoe(wbuf, addr->ether_addr_octet)) {
273 bcom_ioctl(skfd, ifname, WLC_SET_WDSLIST, buf, sizeof(buf));
277 bcom_ioctl(skfd, ifname, WLC_GET_PHYTYPE, &val, sizeof(val));
279 int override = WLC_G_PROTECTION_OFF;
280 int control = WLC_G_PROTECTION_CTL_OFF;
282 if (v = nvram_get(wl_var("gmode")))
290 bcom_ioctl(skfd, ifname, WLC_SET_GMODE, &val, sizeof(val));
292 if (nvram_match(wl_var("gmode_protection"), "auto")) {
293 override = WLC_G_PROTECTION_AUTO;
294 control = WLC_G_PROTECTION_CTL_OVERLAP;
296 if (nvram_enabled(wl_var("gmode_protection"))) {
297 override = WLC_G_PROTECTION_ON;
298 control = WLC_G_PROTECTION_CTL_OVERLAP;
300 bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_CONTROL, &override, sizeof(control));
301 bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_OVERRIDE, &override, sizeof(override));
304 if (nvram_match(wl_var("plcphdr"), "long"))
307 val = WLC_PLCP_SHORT;
309 bcom_ioctl(skfd, ifname, WLC_SET_PLCPHDR, &val, sizeof(val));
313 start_bcom(skfd, ifname);
315 if (!(v = nvram_get(wl_var("akm"))))
316 v = nvram_safe_get(wl_var("auth_mode"));
318 if (strstr(v, "wpa") || strstr(v, "psk")) {
322 if (nvram_match(wl_var("crypto"), "tkip"))
324 else if (nvram_match(wl_var("crypto"), "aes"))
326 else if (nvram_match(wl_var("crypto"), "tkip+aes"))
327 val = TKIP_ENABLED | AES_ENABLED;
330 bcom_ioctl(skfd, ifname, WLC_SET_WSEC, &val, sizeof(val));
332 if (val && strstr(v, "psk")) {
333 v = nvram_safe_get(wl_var("wpa_psk"));
335 if ((strlen(v) >= 8) && (strlen(v) < 63)) {
337 bcom_ioctl(skfd, ifname, WLC_SET_WPA_AUTH, &val, sizeof(val));
339 bcom_ioctl(skfd, ifname, WLC_GET_AP, &val, sizeof(val));
341 /* Enable in-driver WPA supplicant */
344 pmk.key_len = (unsigned short) strlen(v);
345 pmk.flags = WSEC_PASSPHRASE;
347 bcom_ioctl(skfd, ifname, WLC_SET_WSEC_PMK, &pmk, sizeof(pmk));
348 bcom_set_int(skfd, ifname, "sup_wpa", 1);
353 bcom_ioctl(skfd, ifname, WLC_SET_EAP_RESTRICT, &val, sizeof(val));
358 bcom_ioctl(skfd, ifname, WLC_SET_WSEC, &val, sizeof(val));
359 bcom_ioctl(skfd, ifname, WLC_SET_WPA_AUTH, &val, sizeof(val));
360 bcom_ioctl(skfd, ifname, WLC_SET_EAP_RESTRICT, &val, sizeof(val));
361 bcom_set_int(skfd, ifname, "sup_wpa", 0);
365 void set_wext_ssid(int skfd, char *ifname)
368 char essid[IW_ESSID_MAX_SIZE + 1];
371 buffer = nvram_get(wl_var("ssid"));
373 if (!buffer || (strlen(buffer) > IW_ESSID_MAX_SIZE))
376 wrq.u.essid.flags = 1;
377 strcpy(essid, buffer);
378 wrq.u.essid.pointer = (caddr_t) essid;
379 wrq.u.essid.length = strlen(essid) + 1;
380 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWESSID, &wrq, "Set ESSID");
383 void setup_wext_wep(int skfd, char *ifname)
389 unsigned char key[IW_ENCODING_TOKEN_MAX];
391 memset(&wrq, 0, sizeof(wrq));
392 strcpy(keystr, "key1");
393 for (i = 1; i <= 4; i++) {
394 if (keyval = nvram_get(wl_var(keystr))) {
395 keylen = iw_in_key(keyval, key);
398 wrq.u.data.length = keylen;
399 wrq.u.data.pointer = (caddr_t) key;
400 wrq.u.data.flags = i;
401 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
407 memset(&wrq, 0, sizeof(wrq));
408 i = atoi(nvram_safe_get(wl_var("key")));
409 if (i > 0 && i < 4) {
410 wrq.u.data.flags = i | IW_ENCODE_RESTRICTED;
411 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
415 void set_wext_mode(skfd, ifname)
418 int ap = 0, infra = 0, wet = 0;
420 /* Set operation mode */
421 ap = !nvram_match(wl_var("mode"), "sta") && !nvram_match(wl_var("mode"), "wet");
422 infra = !nvram_disabled(wl_var("infra"));
423 wet = nvram_enabled(wl_var("wet")) || !nvram_match(wl_var("mode"), "wet");
425 wrq.u.mode = (!infra ? IW_MODE_ADHOC : (ap ? IW_MODE_MASTER : (wet ? IW_MODE_REPEAT : IW_MODE_INFRA)));
426 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWMODE, &wrq, "Set Mode");
429 void setup_wext(int skfd, char *ifname)
435 int channel = atoi(nvram_safe_get(wl_var("channel")));
439 wrq.u.freq.flags = 0;
442 wrq.u.freq.flags = IW_FREQ_FIXED;
443 wrq.u.freq.m = channel;
444 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWFREQ, &wrq, "Set Frequency");
448 /* Disable radio if wlX_radio is set and not enabled */
449 wrq.u.txpower.disabled = nvram_disabled(wl_var("radio"));
451 wrq.u.txpower.value = -1;
452 wrq.u.txpower.fixed = 1;
453 wrq.u.txpower.flags = IW_TXPOW_DBM;
454 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWTXPOW, &wrq, "Set Tx Power");
457 if (nvram_enabled(wl_var("wep")) && !wpa_enc)
458 setup_wext_wep(skfd, ifname);
461 set_wext_ssid(skfd, ifname);
466 static int setup_interfaces(int skfd, char *ifname, char *args[], int count)
471 /* Avoid "Unused parameter" warning */
472 args = args; count = count;
474 if(iw_get_ext(skfd, ifname, SIOCGIWNAME, &wrq) < 0)
477 stop_bcom(skfd, ifname);
478 set_wext_mode(skfd, ifname);
479 setup_bcom(skfd, ifname);
480 setup_wext(skfd, ifname);
485 int main(int argc, char **argv)
488 if((skfd = iw_sockets_open()) < 0) {
493 prefix = strdup("wl0_");
494 iw_enum_devices(skfd, &setup_interfaces, NULL, 0);