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)
153 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
156 bcom_ioctl(skfd, ifname, WLC_DOWN, NULL, 0);
158 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")))) {
160 if (nvram_match(wl_var("crypto"), "tkip"))
162 else if (nvram_match(wl_var("crypto"), "aes"))
164 else if (nvram_match(wl_var("crypto"), "tkip+aes"))
165 val = TKIP_ENABLED | AES_ENABLED;
168 bcom_ioctl(skfd, ifname, WLC_SET_WSEC, &val, sizeof(val));
170 if (val && nvram_get(wl_var("wpa_psk"))) {
172 bcom_ioctl(skfd, ifname, WLC_SET_EAP_RESTRICT, &val, sizeof(val));
176 /* Set up afterburner */
178 if (nvram_enabled(wl_var("afterburner")))
180 if (nvram_disabled(wl_var("afterburner")))
182 bcom_set_val(skfd, ifname, "afterburner_override", &val, sizeof(val));
184 /* Set other options */
185 if (v = nvram_get(wl_var("lazywds"))) {
187 bcom_ioctl(skfd, ifname, WLC_SET_LAZYWDS, &val, sizeof(val));
189 if (v = nvram_get(wl_var("frag"))) {
191 bcom_ioctl(skfd, ifname, WLC_SET_FRAG, &val, sizeof(val));
193 if (v = nvram_get(wl_var("dtim"))) {
195 bcom_ioctl(skfd, ifname, WLC_SET_DTIMPRD, &val, sizeof(val));
197 if (v = nvram_get(wl_var("bcn"))) {
199 bcom_ioctl(skfd, ifname, WLC_SET_BCNPRD, &val, sizeof(val));
201 if (v = nvram_get(wl_var("rts"))) {
203 bcom_ioctl(skfd, ifname, WLC_SET_RTS, &val, sizeof(val));
205 if (v = nvram_get(wl_var("antdiv"))) {
207 bcom_ioctl(skfd, ifname, WLC_SET_ANTDIV, &val, sizeof(val));
209 if (v = nvram_get(wl_var("txant"))) {
211 bcom_ioctl(skfd, ifname, WLC_SET_TXANT, &val, sizeof(val));
214 val = nvram_enabled(wl_var("closed"));
215 bcom_ioctl(skfd, ifname, WLC_SET_CLOSED, &val, sizeof(val));
217 val = nvram_enabled(wl_var("ap_isolate"));
218 bcom_set_int(skfd, ifname, "ap_isolate", val);
220 val = nvram_enabled(wl_var("frameburst"));
221 bcom_ioctl(skfd, ifname, WLC_SET_FAKEFRAG, &val, sizeof(val));
223 /* Set up MAC list */
224 if (nvram_match(wl_var("macmode"), "allow"))
225 val = WLC_MACMODE_ALLOW;
226 else if (nvram_match(wl_var("macmode"), "deny"))
227 val = WLC_MACMODE_DENY;
229 val = WLC_MACMODE_DISABLED;
231 if ((val != WLC_MACMODE_DISABLED) && (v = nvram_get(wl_var("maclist")))) {
232 struct maclist *mac_list;
233 struct ether_addr *addr;
236 memset(buf, 0, 8192);
237 mac_list = (struct maclist *) buf;
240 foreach(wbuf, v, next) {
241 if (ether_atoe(wbuf, addr->ether_addr_octet)) {
246 bcom_ioctl(skfd, ifname, WLC_SET_MACLIST, buf, sizeof(buf));
248 val = WLC_MACMODE_DISABLED;
250 bcom_ioctl(skfd, ifname, WLC_SET_MACMODE, &val, sizeof(val));
252 if (v = nvram_get(wl_var("wds"))) {
253 struct maclist *wdslist = (struct maclist *) buf;
254 struct ether_addr *addr = wdslist->ea;
257 memset(buf, 0, 8192);
258 foreach(wbuf, v, next) {
259 if (ether_atoe(wbuf, addr->ether_addr_octet)) {
264 bcom_ioctl(skfd, ifname, WLC_SET_WDSLIST, buf, sizeof(buf));
268 bcom_ioctl(skfd, ifname, WLC_GET_PHYTYPE, &val, sizeof(val));
270 int override = WLC_G_PROTECTION_OFF;
271 int control = WLC_G_PROTECTION_CTL_OFF;
273 if (v = nvram_get(wl_var("gmode")))
281 bcom_ioctl(skfd, ifname, WLC_SET_GMODE, &val, sizeof(val));
283 if (nvram_match(wl_var("gmode_protection"), "auto")) {
284 override = WLC_G_PROTECTION_AUTO;
285 control = WLC_G_PROTECTION_CTL_OVERLAP;
287 if (nvram_enabled(wl_var("gmode_protection"))) {
288 override = WLC_G_PROTECTION_ON;
289 control = WLC_G_PROTECTION_CTL_OVERLAP;
291 bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_CONTROL, &override, sizeof(control));
292 bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_OVERRIDE, &override, sizeof(override));
295 if (nvram_match(wl_var("plcphdr"), "long"))
298 val = WLC_PLCP_SHORT;
300 bcom_ioctl(skfd, ifname, WLC_SET_PLCPHDR, &val, sizeof(val));
306 void set_wext_ssid(int skfd, char *ifname)
311 if (buffer = nvram_get(wl_var("ssid"))) {
312 if (strlen(buffer) > IW_ESSID_MAX_SIZE) {
313 ABORT_ARG_SIZE("Set ESSID", SIOCSIWESSID, IW_ESSID_MAX_SIZE);
315 char essid[IW_ESSID_MAX_SIZE + 1];
317 wrq.u.essid.flags = 1;
318 strcpy(essid, buffer);
319 wrq.u.essid.pointer = (caddr_t) essid;
320 wrq.u.essid.length = strlen(essid) + 1;
321 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWESSID, &wrq, "Set ESSID");
326 void start_bcom(int skfd, char *ifname)
330 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
333 bcom_ioctl(skfd, ifname, WLC_UP, &val, sizeof(val));
335 /* Need to re-set SSID after WLC_UP */
336 set_wext_ssid(skfd, ifname);
339 void setup_wext_wep(int skfd, char *ifname)
345 unsigned char key[IW_ENCODING_TOKEN_MAX];
347 strcpy(keystr, "key1");
348 for (i = 1; i <= 4; i++) {
349 if (keyval = nvram_get(wl_var(keystr))) {
350 keylen = iw_in_key(keyval, key);
353 wrq.u.data.length = keylen;
354 wrq.u.data.pointer = (caddr_t) key;
355 wrq.u.data.flags = i;
356 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
363 i = atoi(nvram_safe_get(wl_var("key")));
364 if (i > 0 && i < 4) {
365 wrq.u.data.flags = i | IW_ENCODE_RESTRICTED;
366 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
370 void setup_wext(int skfd, char *ifname)
376 set_wext_ssid(skfd, ifname);
379 int channel = atoi(nvram_safe_get(wl_var("channel")));
383 wrq.u.freq.flags = 0;
386 wrq.u.freq.flags = IW_FREQ_FIXED;
387 wrq.u.freq.m = channel;
388 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWFREQ, &wrq, "Set Frequency");
391 /* Set operation mode */
392 int ap = 0, infra = 0, wet = 0;
394 ap = !nvram_match(wl_var("mode"), "sta");
395 infra = !nvram_disabled(wl_var("infra"));
396 wet = nvram_enabled(wl_var("wet"));
398 wrq.u.mode = (!infra ? IW_MODE_ADHOC : (ap ? IW_MODE_MASTER : (wet ? IW_MODE_REPEAT : IW_MODE_INFRA)));
399 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWMODE, &wrq, "Set Mode");
401 /* Disable radio if wlX_radio is set and not enabled */
402 wrq.u.txpower.disabled = nvram_disabled(wl_var("radio"));
404 wrq.u.txpower.value = -1;
405 wrq.u.txpower.fixed = 1;
406 wrq.u.txpower.flags = IW_TXPOW_MWATT;
407 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWTXPOW, &wrq, "Set Tx Power");
410 if (nvram_enabled(wl_var("wep")))
411 setup_wext_wep(skfd, ifname);
416 static int setup_interfaces(int skfd, char *ifname, char *args[], int count)
421 /* Avoid "Unused parameter" warning */
422 args = args; count = count;
424 if(iw_get_ext(skfd, ifname, SIOCGIWNAME, &wrq) < 0)
427 setup_bcom(skfd, ifname);
428 setup_wext(skfd, ifname);
429 start_bcom(skfd, ifname);
433 int main(int argc, char **argv)
436 if((skfd = iw_sockets_open()) < 0) {
441 prefix = strdup("wl0_");
442 iw_enum_devices(skfd, &setup_interfaces, NULL, 0);