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Commit | Line | Data |
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6fc6879b JM |
1 | /* |
2 | * WPA Supplicant / main() function for UNIX like OSes and MinGW | |
29257565 | 3 | * Copyright (c) 2003-2013, Jouni Malinen <j@w1.fi> |
6fc6879b | 4 | * |
0f3d578e JM |
5 | * This software may be distributed under the terms of the BSD license. |
6 | * See README for more details. | |
6fc6879b JM |
7 | */ |
8 | ||
9 | #include "includes.h" | |
10 | #ifdef __linux__ | |
11 | #include <fcntl.h> | |
12 | #endif /* __linux__ */ | |
13 | ||
14 | #include "common.h" | |
b36a3a65 | 15 | #include "fst/fst.h" |
6fc6879b | 16 | #include "wpa_supplicant_i.h" |
2d5b792d | 17 | #include "driver_i.h" |
c68f6200 | 18 | #include "p2p_supplicant.h" |
2d5b792d | 19 | |
6fc6879b | 20 | |
6fc6879b JM |
21 | static void usage(void) |
22 | { | |
23 | int i; | |
24 | printf("%s\n\n%s\n" | |
25 | "usage:\n" | |
36bd29ee DW |
26 | " wpa_supplicant [-BddhKLqq" |
27 | #ifdef CONFIG_DEBUG_SYSLOG | |
28 | "s" | |
29 | #endif /* CONFIG_DEBUG_SYSLOG */ | |
30 | "t" | |
6a8dee76 | 31 | #ifdef CONFIG_CTRL_IFACE_DBUS_NEW |
36bd29ee | 32 | "u" |
6a8dee76 | 33 | #endif /* CONFIG_CTRL_IFACE_DBUS_NEW */ |
36bd29ee | 34 | "vW] [-P<pid file>] " |
6fc6879b | 35 | "[-g<global ctrl>] \\\n" |
29257565 | 36 | " [-G<group>] \\\n" |
6fc6879b JM |
37 | " -i<ifname> -c<config file> [-C<ctrl>] [-D<driver>] " |
38 | "[-p<driver_param>] \\\n" | |
36bd29ee DW |
39 | " [-b<br_ifname>] [-e<entropy file>]" |
40 | #ifdef CONFIG_DEBUG_FILE | |
41 | " [-f<debug file>]" | |
42 | #endif /* CONFIG_DEBUG_FILE */ | |
43 | " \\\n" | |
d27df100 | 44 | " [-o<override driver>] [-O<override ctrl>] \\\n" |
6fc6879b JM |
45 | " [-N -i<ifname> -c<conf> [-C<ctrl>] " |
46 | "[-D<driver>] \\\n" | |
c16a7590 IP |
47 | #ifdef CONFIG_P2P |
48 | " [-m<P2P Device config file>] \\\n" | |
49 | #endif /* CONFIG_P2P */ | |
e6304cad DS |
50 | " [-p<driver_param>] [-b<br_ifname>] [-I<config file>] " |
51 | "...]\n" | |
6fc6879b JM |
52 | "\n" |
53 | "drivers:\n", | |
54 | wpa_supplicant_version, wpa_supplicant_license); | |
55 | ||
c5121837 | 56 | for (i = 0; wpa_drivers[i]; i++) { |
6fc6879b | 57 | printf(" %s = %s\n", |
c5121837 JM |
58 | wpa_drivers[i]->name, |
59 | wpa_drivers[i]->desc); | |
6fc6879b JM |
60 | } |
61 | ||
62 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
63 | printf("options:\n" | |
64 | " -b = optional bridge interface name\n" | |
65 | " -B = run daemon in the background\n" | |
66 | " -c = Configuration file\n" | |
67 | " -C = ctrl_interface parameter (only used if -c is not)\n" | |
6fc6879b | 68 | " -d = increase debugging verbosity (-dd even more)\n" |
38e24575 | 69 | " -D = driver name (can be multiple drivers: nl80211,wext)\n" |
7c70fe2c | 70 | " -e = entropy file\n" |
6fc6879b | 71 | #ifdef CONFIG_DEBUG_FILE |
7c70fe2c | 72 | " -f = log output to debug file instead of stdout\n" |
6fc6879b | 73 | #endif /* CONFIG_DEBUG_FILE */ |
7c70fe2c | 74 | " -g = global ctrl_interface\n" |
29257565 | 75 | " -G = global ctrl_interface group\n" |
6fc6879b | 76 | " -h = show this help text\n" |
7c70fe2c RM |
77 | " -i = interface name\n" |
78 | " -I = additional configuration file\n" | |
79 | " -K = include keys (passwords, etc.) in debug output\n" | |
331f89ff | 80 | " -L = show license (BSD)\n" |
7c70fe2c RM |
81 | #ifdef CONFIG_P2P |
82 | " -m = Configuration file for the P2P Device interface\n" | |
83 | #endif /* CONFIG_P2P */ | |
2e997eec RM |
84 | #ifdef CONFIG_MATCH_IFACE |
85 | " -M = start describing new matching interface\n" | |
86 | #endif /* CONFIG_MATCH_IFACE */ | |
7c70fe2c | 87 | " -N = start describing new interface\n" |
d27df100 JM |
88 | " -o = override driver parameter for new interfaces\n" |
89 | " -O = override ctrl_interface parameter for new interfaces\n" | |
c511c8c6 | 90 | " -p = driver parameters\n" |
6fc6879b | 91 | " -P = PID file\n" |
7c70fe2c RM |
92 | " -q = decrease debugging verbosity (-qq even less)\n" |
93 | #ifdef CONFIG_DEBUG_SYSLOG | |
94 | " -s = log output to syslog instead of stdout\n" | |
95 | #endif /* CONFIG_DEBUG_SYSLOG */ | |
96 | " -t = include timestamp in debug messages\n" | |
97 | #ifdef CONFIG_DEBUG_LINUX_TRACING | |
98 | " -T = record to Linux tracing in addition to logging\n" | |
99 | " (records all messages regardless of debug verbosity)\n" | |
100 | #endif /* CONFIG_DEBUG_LINUX_TRACING */ | |
6a8dee76 | 101 | #ifdef CONFIG_CTRL_IFACE_DBUS_NEW |
7c70fe2c | 102 | " -u = enable DBus control interface\n" |
6a8dee76 | 103 | #endif /* CONFIG_CTRL_IFACE_DBUS_NEW */ |
7c70fe2c RM |
104 | " -v = show version\n" |
105 | " -W = wait for a control interface monitor before starting\n"); | |
6fc6879b JM |
106 | |
107 | printf("example:\n" | |
daa70d49 | 108 | " wpa_supplicant -D%s -iwlan0 -c/etc/wpa_supplicant.conf\n", |
b57b5600 | 109 | wpa_drivers[0] ? wpa_drivers[0]->name : "nl80211"); |
6fc6879b JM |
110 | #endif /* CONFIG_NO_STDOUT_DEBUG */ |
111 | } | |
112 | ||
113 | ||
114 | static void license(void) | |
115 | { | |
116 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
117 | printf("%s\n\n%s%s%s%s%s\n", | |
118 | wpa_supplicant_version, | |
119 | wpa_supplicant_full_license1, | |
120 | wpa_supplicant_full_license2, | |
121 | wpa_supplicant_full_license3, | |
122 | wpa_supplicant_full_license4, | |
123 | wpa_supplicant_full_license5); | |
124 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
125 | } | |
126 | ||
127 | ||
392824ef | 128 | static void wpa_supplicant_fd_workaround(int start) |
6fc6879b JM |
129 | { |
130 | #ifdef __linux__ | |
392824ef JM |
131 | static int fd[3] = { -1, -1, -1 }; |
132 | int i; | |
6fc6879b JM |
133 | /* When started from pcmcia-cs scripts, wpa_supplicant might start with |
134 | * fd 0, 1, and 2 closed. This will cause some issues because many | |
135 | * places in wpa_supplicant are still printing out to stdout. As a | |
136 | * workaround, make sure that fd's 0, 1, and 2 are not used for other | |
137 | * sockets. */ | |
392824ef JM |
138 | if (start) { |
139 | for (i = 0; i < 3; i++) { | |
140 | fd[i] = open("/dev/null", O_RDWR); | |
141 | if (fd[i] > 2) { | |
142 | close(fd[i]); | |
143 | fd[i] = -1; | |
144 | break; | |
145 | } | |
146 | } | |
147 | } else { | |
148 | for (i = 0; i < 3; i++) { | |
149 | if (fd[i] >= 0) { | |
150 | close(fd[i]); | |
151 | fd[i] = -1; | |
152 | } | |
6fc6879b JM |
153 | } |
154 | } | |
155 | #endif /* __linux__ */ | |
156 | } | |
157 | ||
158 | ||
2e997eec RM |
159 | #ifdef CONFIG_MATCH_IFACE |
160 | static int wpa_supplicant_init_match(struct wpa_global *global) | |
161 | { | |
162 | /* | |
163 | * The assumption is that the first driver is the primary driver and | |
164 | * will handle the arrival / departure of interfaces. | |
165 | */ | |
166 | if (wpa_drivers[0]->global_init && !global->drv_priv[0]) { | |
167 | global->drv_priv[0] = wpa_drivers[0]->global_init(global); | |
168 | if (!global->drv_priv[0]) { | |
169 | wpa_printf(MSG_ERROR, | |
170 | "Failed to initialize driver '%s'", | |
171 | wpa_drivers[0]->name); | |
172 | return -1; | |
173 | } | |
174 | } | |
175 | ||
176 | return 0; | |
177 | } | |
178 | #endif /* CONFIG_MATCH_IFACE */ | |
179 | ||
180 | ||
6fc6879b JM |
181 | int main(int argc, char *argv[]) |
182 | { | |
183 | int c, i; | |
184 | struct wpa_interface *ifaces, *iface; | |
185 | int iface_count, exitcode = -1; | |
186 | struct wpa_params params; | |
187 | struct wpa_global *global; | |
188 | ||
189 | if (os_program_init()) | |
190 | return -1; | |
191 | ||
192 | os_memset(¶ms, 0, sizeof(params)); | |
193 | params.wpa_debug_level = MSG_INFO; | |
194 | ||
195 | iface = ifaces = os_zalloc(sizeof(struct wpa_interface)); | |
196 | if (ifaces == NULL) | |
197 | return -1; | |
198 | iface_count = 1; | |
199 | ||
392824ef | 200 | wpa_supplicant_fd_workaround(1); |
6fc6879b JM |
201 | |
202 | for (;;) { | |
4f68895e | 203 | c = getopt(argc, argv, |
2e997eec | 204 | "b:Bc:C:D:de:f:g:G:hi:I:KLMm:No:O:p:P:qsTtuvW"); |
6fc6879b JM |
205 | if (c < 0) |
206 | break; | |
207 | switch (c) { | |
208 | case 'b': | |
209 | iface->bridge_ifname = optarg; | |
210 | break; | |
211 | case 'B': | |
212 | params.daemonize++; | |
213 | break; | |
214 | case 'c': | |
215 | iface->confname = optarg; | |
216 | break; | |
217 | case 'C': | |
218 | iface->ctrl_interface = optarg; | |
219 | break; | |
220 | case 'D': | |
221 | iface->driver = optarg; | |
222 | break; | |
223 | case 'd': | |
224 | #ifdef CONFIG_NO_STDOUT_DEBUG | |
225 | printf("Debugging disabled with " | |
226 | "CONFIG_NO_STDOUT_DEBUG=y build time " | |
227 | "option.\n"); | |
228 | goto out; | |
229 | #else /* CONFIG_NO_STDOUT_DEBUG */ | |
230 | params.wpa_debug_level--; | |
231 | break; | |
232 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
38e24575 JM |
233 | case 'e': |
234 | params.entropy_file = optarg; | |
235 | break; | |
6fc6879b JM |
236 | #ifdef CONFIG_DEBUG_FILE |
237 | case 'f': | |
238 | params.wpa_debug_file_path = optarg; | |
239 | break; | |
240 | #endif /* CONFIG_DEBUG_FILE */ | |
241 | case 'g': | |
242 | params.ctrl_interface = optarg; | |
243 | break; | |
29257565 JM |
244 | case 'G': |
245 | params.ctrl_interface_group = optarg; | |
246 | break; | |
6fc6879b JM |
247 | case 'h': |
248 | usage(); | |
249 | exitcode = 0; | |
250 | goto out; | |
251 | case 'i': | |
252 | iface->ifname = optarg; | |
253 | break; | |
e6304cad DS |
254 | case 'I': |
255 | iface->confanother = optarg; | |
256 | break; | |
6fc6879b JM |
257 | case 'K': |
258 | params.wpa_debug_show_keys++; | |
259 | break; | |
260 | case 'L': | |
261 | license(); | |
262 | exitcode = 0; | |
263 | goto out; | |
c16a7590 IP |
264 | #ifdef CONFIG_P2P |
265 | case 'm': | |
f43c1ae7 | 266 | params.conf_p2p_dev = optarg; |
c16a7590 IP |
267 | break; |
268 | #endif /* CONFIG_P2P */ | |
d27df100 JM |
269 | case 'o': |
270 | params.override_driver = optarg; | |
271 | break; | |
272 | case 'O': | |
273 | params.override_ctrl_interface = optarg; | |
274 | break; | |
6fc6879b JM |
275 | case 'p': |
276 | iface->driver_param = optarg; | |
277 | break; | |
278 | case 'P': | |
279 | os_free(params.pid_file); | |
280 | params.pid_file = os_rel2abs_path(optarg); | |
281 | break; | |
282 | case 'q': | |
283 | params.wpa_debug_level++; | |
284 | break; | |
daa70d49 SL |
285 | #ifdef CONFIG_DEBUG_SYSLOG |
286 | case 's': | |
287 | params.wpa_debug_syslog++; | |
288 | break; | |
289 | #endif /* CONFIG_DEBUG_SYSLOG */ | |
4f68895e JB |
290 | #ifdef CONFIG_DEBUG_LINUX_TRACING |
291 | case 'T': | |
292 | params.wpa_debug_tracing++; | |
293 | break; | |
294 | #endif /* CONFIG_DEBUG_LINUX_TRACING */ | |
6fc6879b JM |
295 | case 't': |
296 | params.wpa_debug_timestamp++; | |
297 | break; | |
6a8dee76 | 298 | #ifdef CONFIG_CTRL_IFACE_DBUS_NEW |
6fc6879b JM |
299 | case 'u': |
300 | params.dbus_ctrl_interface = 1; | |
301 | break; | |
6a8dee76 | 302 | #endif /* CONFIG_CTRL_IFACE_DBUS_NEW */ |
6fc6879b JM |
303 | case 'v': |
304 | printf("%s\n", wpa_supplicant_version); | |
305 | exitcode = 0; | |
306 | goto out; | |
307 | case 'W': | |
308 | params.wait_for_monitor++; | |
309 | break; | |
2e997eec RM |
310 | #ifdef CONFIG_MATCH_IFACE |
311 | case 'M': | |
312 | params.match_iface_count++; | |
313 | iface = os_realloc_array(params.match_ifaces, | |
314 | params.match_iface_count, | |
315 | sizeof(struct wpa_interface)); | |
316 | if (!iface) | |
317 | goto out; | |
318 | params.match_ifaces = iface; | |
319 | iface = ¶ms.match_ifaces[params.match_iface_count - | |
320 | 1]; | |
321 | os_memset(iface, 0, sizeof(*iface)); | |
322 | break; | |
323 | #endif /* CONFIG_MATCH_IFACE */ | |
6fc6879b JM |
324 | case 'N': |
325 | iface_count++; | |
067ffa26 JM |
326 | iface = os_realloc_array(ifaces, iface_count, |
327 | sizeof(struct wpa_interface)); | |
6fc6879b JM |
328 | if (iface == NULL) |
329 | goto out; | |
330 | ifaces = iface; | |
09d57ce4 | 331 | iface = &ifaces[iface_count - 1]; |
6fc6879b JM |
332 | os_memset(iface, 0, sizeof(*iface)); |
333 | break; | |
334 | default: | |
335 | usage(); | |
336 | exitcode = 0; | |
337 | goto out; | |
338 | } | |
339 | } | |
340 | ||
341 | exitcode = 0; | |
342 | global = wpa_supplicant_init(¶ms); | |
343 | if (global == NULL) { | |
344 | wpa_printf(MSG_ERROR, "Failed to initialize wpa_supplicant"); | |
345 | exitcode = -1; | |
346 | goto out; | |
bae489d2 BG |
347 | } else { |
348 | wpa_printf(MSG_INFO, "Successfully initialized " | |
349 | "wpa_supplicant"); | |
6fc6879b JM |
350 | } |
351 | ||
b36a3a65 AN |
352 | if (fst_global_init()) { |
353 | wpa_printf(MSG_ERROR, "Failed to initialize FST"); | |
354 | exitcode = -1; | |
355 | goto out; | |
356 | } | |
357 | ||
358 | #if defined(CONFIG_FST) && defined(CONFIG_CTRL_IFACE) | |
359 | if (!fst_global_add_ctrl(fst_ctrl_cli)) | |
360 | wpa_printf(MSG_WARNING, "Failed to add CLI FST ctrl"); | |
361 | #endif | |
362 | ||
6fc6879b | 363 | for (i = 0; exitcode == 0 && i < iface_count; i++) { |
c68f6200 AS |
364 | struct wpa_supplicant *wpa_s; |
365 | ||
6fc6879b JM |
366 | if ((ifaces[i].confname == NULL && |
367 | ifaces[i].ctrl_interface == NULL) || | |
368 | ifaces[i].ifname == NULL) { | |
369 | if (iface_count == 1 && (params.ctrl_interface || | |
2e997eec RM |
370 | #ifdef CONFIG_MATCH_IFACE |
371 | params.match_iface_count || | |
372 | #endif /* CONFIG_MATCH_IFACE */ | |
6fc6879b JM |
373 | params.dbus_ctrl_interface)) |
374 | break; | |
375 | usage(); | |
376 | exitcode = -1; | |
377 | break; | |
378 | } | |
1772d348 | 379 | wpa_s = wpa_supplicant_add_iface(global, &ifaces[i], NULL); |
c68f6200 AS |
380 | if (wpa_s == NULL) { |
381 | exitcode = -1; | |
382 | break; | |
383 | } | |
6fc6879b JM |
384 | } |
385 | ||
2e997eec RM |
386 | #ifdef CONFIG_MATCH_IFACE |
387 | if (exitcode == 0) | |
388 | exitcode = wpa_supplicant_init_match(global); | |
389 | #endif /* CONFIG_MATCH_IFACE */ | |
390 | ||
6fc6879b JM |
391 | if (exitcode == 0) |
392 | exitcode = wpa_supplicant_run(global); | |
393 | ||
394 | wpa_supplicant_deinit(global); | |
395 | ||
b36a3a65 AN |
396 | fst_global_deinit(); |
397 | ||
6fc6879b | 398 | out: |
392824ef | 399 | wpa_supplicant_fd_workaround(0); |
6fc6879b | 400 | os_free(ifaces); |
2e997eec RM |
401 | #ifdef CONFIG_MATCH_IFACE |
402 | os_free(params.match_ifaces); | |
403 | #endif /* CONFIG_MATCH_IFACE */ | |
6fc6879b JM |
404 | os_free(params.pid_file); |
405 | ||
406 | os_program_deinit(); | |
407 | ||
408 | return exitcode; | |
409 | } |