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") ? 1 : 0);
98 int nvram_disabled(char *name)
100 return (nvram_match(name, "0") || nvram_match(name, "off") || nvram_match(name, "disabled") ? 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)
151 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
154 bcom_ioctl(skfd, ifname, WLC_DOWN, NULL, 0);
157 if (nvram_match(wl_var("crypto"), "tkip"))
159 else if (nvram_match(wl_var("crypto"), "aes"))
161 else if (nvram_match(wl_var("crypto"), "tkip+aes"))
162 val = TKIP_ENABLED | AES_ENABLED;
165 bcom_ioctl(skfd, ifname, WLC_SET_WSEC, &val, sizeof(val));
167 if (val && nvram_get(wl_var("wpa_psk"))) {
169 bcom_ioctl(skfd, ifname, WLC_SET_EAP_RESTRICT, &val, sizeof(val));
172 /* Set up afterburner */
174 if (nvram_enabled(wl_var("afterburner")))
176 if (nvram_disabled(wl_var("afterburner")))
178 bcom_set_val(skfd, ifname, "afterburner_override", &val, sizeof(val));
180 /* Set other options */
181 val = atoi(nvram_safe_get(wl_var("lazywds")));
182 bcom_ioctl(skfd, ifname, WLC_SET_LAZYWDS, &val, sizeof(val));
183 val = atoi(nvram_safe_get(wl_var("frag")));
184 bcom_ioctl(skfd, ifname, WLC_SET_FRAG, &val, sizeof(val));
185 val = atoi(nvram_safe_get(wl_var("dtim")));
186 bcom_ioctl(skfd, ifname, WLC_SET_DTIMPRD, &val, sizeof(val));
187 val = atoi(nvram_safe_get(wl_var("bcn")));
188 bcom_ioctl(skfd, ifname, WLC_SET_BCNPRD, &val, sizeof(val));
189 val = atoi(nvram_safe_get(wl_var("rts")));
190 bcom_ioctl(skfd, ifname, WLC_SET_RTS, &val, sizeof(val));
191 val = atoi(nvram_safe_get(wl_var("antdiv")));
192 bcom_ioctl(skfd, ifname, WLC_SET_ANTDIV, &val, sizeof(val));
193 val = atoi(nvram_safe_get(wl_var("txant")));
194 bcom_ioctl(skfd, ifname, WLC_SET_TXANT, &val, sizeof(val));
196 val = nvram_enabled(wl_var("ap_isolate"));
197 bcom_set_int(skfd, ifname, "ap_isolate", val);
198 val = nvram_enabled(wl_var("frameburst"));
199 bcom_ioctl(skfd, ifname, WLC_SET_FAKEFRAG, &val, sizeof(val));
201 /* Set up MAC list */
202 if (nvram_match(wl_var("macmode"), "allow"))
203 val = WLC_MACMODE_ALLOW;
204 else if (nvram_match(wl_var("macmode"), "deny"))
205 val = WLC_MACMODE_DENY;
207 val = WLC_MACMODE_DISABLED;
209 if ((val != WLC_MACMODE_DISABLED) && (v = nvram_get(wl_var("maclist")))) {
211 struct maclist *mac_list;
212 struct ether_addr *addr;
215 memset(buf, 0, 8192);
216 mac_list = (struct maclist *) buf;
219 foreach(v, nvram_safe_get(wl_var("maclist")), next) {
220 if (ether_atoe(v, addr->ether_addr_octet)) {
225 bcom_ioctl(skfd, ifname, WLC_SET_MACLIST, buf, sizeof(buf));
227 val = WLC_MACMODE_DISABLED;
229 bcom_ioctl(skfd, ifname, WLC_SET_MACMODE, &val, sizeof(val));
232 bcom_ioctl(skfd, ifname, WLC_GET_PHYTYPE, &val, sizeof(val));
234 int override = WLC_G_PROTECTION_OFF;
235 int control = WLC_G_PROTECTION_CTL_OFF;
237 val = atoi(nvram_safe_get(wl_var("gmode")));
240 bcom_ioctl(skfd, ifname, WLC_SET_GMODE, &val, sizeof(val));
242 if (nvram_match(wl_var("gmode_protection"), "auto")) {
243 override = WLC_G_PROTECTION_AUTO;
244 control = WLC_G_PROTECTION_CTL_OVERLAP;
246 if (nvram_enabled(wl_var("gmode_protection"))) {
247 override = WLC_G_PROTECTION_ON;
248 control = WLC_G_PROTECTION_CTL_OVERLAP;
250 bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_CONTROL, &override, sizeof(control));
251 bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_OVERRIDE, &override, sizeof(override));
255 void set_wext_ssid(int skfd, char *ifname)
260 if (buffer = nvram_get(wl_var("ssid"))) {
261 if (strlen(buffer) > IW_ESSID_MAX_SIZE) {
262 ABORT_ARG_SIZE("Set ESSID", SIOCSIWESSID, IW_ESSID_MAX_SIZE);
264 char essid[IW_ESSID_MAX_SIZE + 1];
266 wrq.u.essid.flags = 1;
267 strcpy(essid, buffer);
268 wrq.u.essid.pointer = (caddr_t) essid;
269 wrq.u.essid.length = strlen(essid) + 1;
270 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWESSID, &wrq, "Set ESSID");
275 void start_bcom(int skfd, char *ifname)
279 if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
282 bcom_ioctl(skfd, ifname, WLC_UP, &val, sizeof(val));
284 /* Need to re-set SSID after WLC_UP */
285 set_wext_ssid(skfd, ifname);
288 void setup_wext_wep(int skfd, char *ifname)
294 unsigned char key[IW_ENCODING_TOKEN_MAX];
296 strcpy(keystr, "key1");
297 for (i = 1; i <= 4; i++) {
298 if (keyval = nvram_get(wl_var(keystr))) {
299 keylen = iw_in_key(keyval, key);
302 wrq.u.data.length = keylen;
303 wrq.u.data.pointer = (caddr_t) key;
304 wrq.u.data.flags = i;
305 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
312 i = atoi(nvram_safe_get(wl_var("key")));
313 if (i > 0 && i < 4) {
314 wrq.u.data.flags = i | IW_ENCODE_RESTRICTED;
315 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
319 void setup_wext(int skfd, char *ifname)
325 set_wext_ssid(skfd, ifname);
328 int channel = atoi(nvram_safe_get(wl_var("channel")));
332 wrq.u.freq.flags = 0;
335 wrq.u.freq.flags = IW_FREQ_FIXED;
336 wrq.u.freq.m = channel;
338 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWFREQ, &wrq, "Set Frequency");
340 /* Set operation mode */
341 int ap = 0, infra = 0, wet = 0;
343 ap = (nvram_match(wl_var("mode"), "ap") || nvram_match(wl_var("mode"), "wds"));
344 infra = nvram_enabled(wl_var("infra"));
345 wet = nvram_enabled(wl_var("wet"));
347 wrq.u.mode = (!infra ? IW_MODE_ADHOC : (ap ? IW_MODE_MASTER : (wet ? IW_MODE_REPEAT : IW_MODE_INFRA)));
348 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWMODE, &wrq, "Set Mode");
350 /* Disable radio if wlX_radio is set and not enabled */
351 if (nvram_disabled(wl_var("radio")))
352 wrq.u.txpower.disabled = 1;
354 wrq.u.txpower.disabled = 0;
356 wrq.u.txpower.value = -1;
357 wrq.u.txpower.fixed = 1;
358 wrq.u.txpower.flags = IW_TXPOW_MWATT;
359 IW_SET_EXT_ERR(skfd, ifname, SIOCSIWTXPOW, &wrq, "Set Tx Power");
362 if (nvram_enabled(wl_var("wep")))
363 setup_wext_wep(skfd, ifname);
368 static int setup_interfaces(int skfd, char *ifname, char *args[], int count)
373 /* Avoid "Unused parameter" warning */
374 args = args; count = count;
376 if(iw_get_ext(skfd, ifname, SIOCGIWNAME, &wrq) < 0)
379 setup_bcom(skfd, ifname);
380 setup_wext(skfd, ifname);
381 start_bcom(skfd, ifname);
385 int main(int argc, char **argv)
389 if((skfd = iw_sockets_open()) < 0) {
394 prefix = strdup("wl0_");
395 iw_enum_devices(skfd, &setup_interfaces, NULL, 0);