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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" | |
15 | #include "wpa_supplicant_i.h" | |
2d5b792d | 16 | #include "driver_i.h" |
c68f6200 | 17 | #include "p2p_supplicant.h" |
2d5b792d | 18 | |
6fc6879b | 19 | |
6fc6879b JM |
20 | static void usage(void) |
21 | { | |
22 | int i; | |
23 | printf("%s\n\n%s\n" | |
24 | "usage:\n" | |
36bd29ee DW |
25 | " wpa_supplicant [-BddhKLqq" |
26 | #ifdef CONFIG_DEBUG_SYSLOG | |
27 | "s" | |
28 | #endif /* CONFIG_DEBUG_SYSLOG */ | |
29 | "t" | |
30 | #ifdef CONFIG_DBUS | |
31 | "u" | |
32 | #endif /* CONFIG_DBUS */ | |
33 | "vW] [-P<pid file>] " | |
6fc6879b | 34 | "[-g<global ctrl>] \\\n" |
29257565 | 35 | " [-G<group>] \\\n" |
6fc6879b JM |
36 | " -i<ifname> -c<config file> [-C<ctrl>] [-D<driver>] " |
37 | "[-p<driver_param>] \\\n" | |
36bd29ee DW |
38 | " [-b<br_ifname>] [-e<entropy file>]" |
39 | #ifdef CONFIG_DEBUG_FILE | |
40 | " [-f<debug file>]" | |
41 | #endif /* CONFIG_DEBUG_FILE */ | |
42 | " \\\n" | |
d27df100 | 43 | " [-o<override driver>] [-O<override ctrl>] \\\n" |
6fc6879b JM |
44 | " [-N -i<ifname> -c<conf> [-C<ctrl>] " |
45 | "[-D<driver>] \\\n" | |
c16a7590 IP |
46 | #ifdef CONFIG_P2P |
47 | " [-m<P2P Device config file>] \\\n" | |
48 | #endif /* CONFIG_P2P */ | |
e6304cad DS |
49 | " [-p<driver_param>] [-b<br_ifname>] [-I<config file>] " |
50 | "...]\n" | |
6fc6879b JM |
51 | "\n" |
52 | "drivers:\n", | |
53 | wpa_supplicant_version, wpa_supplicant_license); | |
54 | ||
c5121837 | 55 | for (i = 0; wpa_drivers[i]; i++) { |
6fc6879b | 56 | printf(" %s = %s\n", |
c5121837 JM |
57 | wpa_drivers[i]->name, |
58 | wpa_drivers[i]->desc); | |
6fc6879b JM |
59 | } |
60 | ||
61 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
62 | printf("options:\n" | |
63 | " -b = optional bridge interface name\n" | |
64 | " -B = run daemon in the background\n" | |
65 | " -c = Configuration file\n" | |
66 | " -C = ctrl_interface parameter (only used if -c is not)\n" | |
67 | " -i = interface name\n" | |
e6304cad | 68 | " -I = additional configuration file\n" |
6fc6879b | 69 | " -d = increase debugging verbosity (-dd even more)\n" |
38e24575 JM |
70 | " -D = driver name (can be multiple drivers: nl80211,wext)\n" |
71 | " -e = entropy file\n"); | |
6fc6879b | 72 | #ifdef CONFIG_DEBUG_FILE |
c511c8c6 | 73 | printf(" -f = log output to debug file instead of stdout\n"); |
6fc6879b | 74 | #endif /* CONFIG_DEBUG_FILE */ |
c511c8c6 | 75 | printf(" -g = global ctrl_interface\n" |
29257565 | 76 | " -G = global ctrl_interface group\n" |
daa70d49 SL |
77 | " -K = include keys (passwords, etc.) in debug output\n"); |
78 | #ifdef CONFIG_DEBUG_SYSLOG | |
79 | printf(" -s = log output to syslog instead of stdout\n"); | |
80 | #endif /* CONFIG_DEBUG_SYSLOG */ | |
4f68895e JB |
81 | #ifdef CONFIG_DEBUG_LINUX_TRACING |
82 | printf(" -T = record to Linux tracing in addition to logging\n"); | |
83 | printf(" (records all messages regardless of debug verbosity)\n"); | |
84 | #endif /* CONFIG_DEBUG_LINUX_TRACING */ | |
daa70d49 | 85 | printf(" -t = include timestamp in debug messages\n" |
6fc6879b | 86 | " -h = show this help text\n" |
331f89ff | 87 | " -L = show license (BSD)\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" |
c511c8c6 | 92 | " -q = decrease debugging verbosity (-qq even less)\n"); |
64bde6d7 | 93 | #ifdef CONFIG_DBUS |
c511c8c6 | 94 | printf(" -u = enable DBus control interface\n"); |
64bde6d7 | 95 | #endif /* CONFIG_DBUS */ |
c511c8c6 | 96 | printf(" -v = show version\n" |
6fc6879b | 97 | " -W = wait for a control interface monitor before starting\n" |
c16a7590 IP |
98 | #ifdef CONFIG_P2P |
99 | " -m = Configuration file for the P2P Device interface\n" | |
100 | #endif /* CONFIG_P2P */ | |
6fc6879b JM |
101 | " -N = start describing new interface\n"); |
102 | ||
103 | printf("example:\n" | |
daa70d49 | 104 | " wpa_supplicant -D%s -iwlan0 -c/etc/wpa_supplicant.conf\n", |
b57b5600 | 105 | wpa_drivers[0] ? wpa_drivers[0]->name : "nl80211"); |
6fc6879b JM |
106 | #endif /* CONFIG_NO_STDOUT_DEBUG */ |
107 | } | |
108 | ||
109 | ||
110 | static void license(void) | |
111 | { | |
112 | #ifndef CONFIG_NO_STDOUT_DEBUG | |
113 | printf("%s\n\n%s%s%s%s%s\n", | |
114 | wpa_supplicant_version, | |
115 | wpa_supplicant_full_license1, | |
116 | wpa_supplicant_full_license2, | |
117 | wpa_supplicant_full_license3, | |
118 | wpa_supplicant_full_license4, | |
119 | wpa_supplicant_full_license5); | |
120 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
121 | } | |
122 | ||
123 | ||
392824ef | 124 | static void wpa_supplicant_fd_workaround(int start) |
6fc6879b JM |
125 | { |
126 | #ifdef __linux__ | |
392824ef JM |
127 | static int fd[3] = { -1, -1, -1 }; |
128 | int i; | |
6fc6879b JM |
129 | /* When started from pcmcia-cs scripts, wpa_supplicant might start with |
130 | * fd 0, 1, and 2 closed. This will cause some issues because many | |
131 | * places in wpa_supplicant are still printing out to stdout. As a | |
132 | * workaround, make sure that fd's 0, 1, and 2 are not used for other | |
133 | * sockets. */ | |
392824ef JM |
134 | if (start) { |
135 | for (i = 0; i < 3; i++) { | |
136 | fd[i] = open("/dev/null", O_RDWR); | |
137 | if (fd[i] > 2) { | |
138 | close(fd[i]); | |
139 | fd[i] = -1; | |
140 | break; | |
141 | } | |
142 | } | |
143 | } else { | |
144 | for (i = 0; i < 3; i++) { | |
145 | if (fd[i] >= 0) { | |
146 | close(fd[i]); | |
147 | fd[i] = -1; | |
148 | } | |
6fc6879b JM |
149 | } |
150 | } | |
151 | #endif /* __linux__ */ | |
152 | } | |
153 | ||
154 | ||
155 | int main(int argc, char *argv[]) | |
156 | { | |
157 | int c, i; | |
158 | struct wpa_interface *ifaces, *iface; | |
159 | int iface_count, exitcode = -1; | |
160 | struct wpa_params params; | |
161 | struct wpa_global *global; | |
162 | ||
163 | if (os_program_init()) | |
164 | return -1; | |
165 | ||
166 | os_memset(¶ms, 0, sizeof(params)); | |
167 | params.wpa_debug_level = MSG_INFO; | |
168 | ||
169 | iface = ifaces = os_zalloc(sizeof(struct wpa_interface)); | |
170 | if (ifaces == NULL) | |
171 | return -1; | |
172 | iface_count = 1; | |
173 | ||
392824ef | 174 | wpa_supplicant_fd_workaround(1); |
6fc6879b JM |
175 | |
176 | for (;;) { | |
4f68895e | 177 | c = getopt(argc, argv, |
c16a7590 | 178 | "b:Bc:C:D:de:f:g:G:hi:I:KLm:No:O:p:P:qsTtuvW"); |
6fc6879b JM |
179 | if (c < 0) |
180 | break; | |
181 | switch (c) { | |
182 | case 'b': | |
183 | iface->bridge_ifname = optarg; | |
184 | break; | |
185 | case 'B': | |
186 | params.daemonize++; | |
187 | break; | |
188 | case 'c': | |
189 | iface->confname = optarg; | |
190 | break; | |
191 | case 'C': | |
192 | iface->ctrl_interface = optarg; | |
193 | break; | |
194 | case 'D': | |
195 | iface->driver = optarg; | |
196 | break; | |
197 | case 'd': | |
198 | #ifdef CONFIG_NO_STDOUT_DEBUG | |
199 | printf("Debugging disabled with " | |
200 | "CONFIG_NO_STDOUT_DEBUG=y build time " | |
201 | "option.\n"); | |
202 | goto out; | |
203 | #else /* CONFIG_NO_STDOUT_DEBUG */ | |
204 | params.wpa_debug_level--; | |
205 | break; | |
206 | #endif /* CONFIG_NO_STDOUT_DEBUG */ | |
38e24575 JM |
207 | case 'e': |
208 | params.entropy_file = optarg; | |
209 | break; | |
6fc6879b JM |
210 | #ifdef CONFIG_DEBUG_FILE |
211 | case 'f': | |
212 | params.wpa_debug_file_path = optarg; | |
213 | break; | |
214 | #endif /* CONFIG_DEBUG_FILE */ | |
215 | case 'g': | |
216 | params.ctrl_interface = optarg; | |
217 | break; | |
29257565 JM |
218 | case 'G': |
219 | params.ctrl_interface_group = optarg; | |
220 | break; | |
6fc6879b JM |
221 | case 'h': |
222 | usage(); | |
223 | exitcode = 0; | |
224 | goto out; | |
225 | case 'i': | |
226 | iface->ifname = optarg; | |
227 | break; | |
e6304cad DS |
228 | case 'I': |
229 | iface->confanother = optarg; | |
230 | break; | |
6fc6879b JM |
231 | case 'K': |
232 | params.wpa_debug_show_keys++; | |
233 | break; | |
234 | case 'L': | |
235 | license(); | |
236 | exitcode = 0; | |
237 | goto out; | |
c16a7590 IP |
238 | #ifdef CONFIG_P2P |
239 | case 'm': | |
240 | iface->conf_p2p_dev = optarg; | |
241 | break; | |
242 | #endif /* CONFIG_P2P */ | |
d27df100 JM |
243 | case 'o': |
244 | params.override_driver = optarg; | |
245 | break; | |
246 | case 'O': | |
247 | params.override_ctrl_interface = optarg; | |
248 | break; | |
6fc6879b JM |
249 | case 'p': |
250 | iface->driver_param = optarg; | |
251 | break; | |
252 | case 'P': | |
253 | os_free(params.pid_file); | |
254 | params.pid_file = os_rel2abs_path(optarg); | |
255 | break; | |
256 | case 'q': | |
257 | params.wpa_debug_level++; | |
258 | break; | |
daa70d49 SL |
259 | #ifdef CONFIG_DEBUG_SYSLOG |
260 | case 's': | |
261 | params.wpa_debug_syslog++; | |
262 | break; | |
263 | #endif /* CONFIG_DEBUG_SYSLOG */ | |
4f68895e JB |
264 | #ifdef CONFIG_DEBUG_LINUX_TRACING |
265 | case 'T': | |
266 | params.wpa_debug_tracing++; | |
267 | break; | |
268 | #endif /* CONFIG_DEBUG_LINUX_TRACING */ | |
6fc6879b JM |
269 | case 't': |
270 | params.wpa_debug_timestamp++; | |
271 | break; | |
64bde6d7 | 272 | #ifdef CONFIG_DBUS |
6fc6879b JM |
273 | case 'u': |
274 | params.dbus_ctrl_interface = 1; | |
275 | break; | |
64bde6d7 | 276 | #endif /* CONFIG_DBUS */ |
6fc6879b JM |
277 | case 'v': |
278 | printf("%s\n", wpa_supplicant_version); | |
279 | exitcode = 0; | |
280 | goto out; | |
281 | case 'W': | |
282 | params.wait_for_monitor++; | |
283 | break; | |
284 | case 'N': | |
285 | iface_count++; | |
067ffa26 JM |
286 | iface = os_realloc_array(ifaces, iface_count, |
287 | sizeof(struct wpa_interface)); | |
6fc6879b JM |
288 | if (iface == NULL) |
289 | goto out; | |
290 | ifaces = iface; | |
291 | iface = &ifaces[iface_count - 1]; | |
292 | os_memset(iface, 0, sizeof(*iface)); | |
293 | break; | |
294 | default: | |
295 | usage(); | |
296 | exitcode = 0; | |
297 | goto out; | |
298 | } | |
299 | } | |
300 | ||
301 | exitcode = 0; | |
302 | global = wpa_supplicant_init(¶ms); | |
303 | if (global == NULL) { | |
304 | wpa_printf(MSG_ERROR, "Failed to initialize wpa_supplicant"); | |
305 | exitcode = -1; | |
306 | goto out; | |
bae489d2 BG |
307 | } else { |
308 | wpa_printf(MSG_INFO, "Successfully initialized " | |
309 | "wpa_supplicant"); | |
6fc6879b JM |
310 | } |
311 | ||
312 | for (i = 0; exitcode == 0 && i < iface_count; i++) { | |
c68f6200 AS |
313 | struct wpa_supplicant *wpa_s; |
314 | ||
6fc6879b JM |
315 | if ((ifaces[i].confname == NULL && |
316 | ifaces[i].ctrl_interface == NULL) || | |
317 | ifaces[i].ifname == NULL) { | |
318 | if (iface_count == 1 && (params.ctrl_interface || | |
319 | params.dbus_ctrl_interface)) | |
320 | break; | |
321 | usage(); | |
322 | exitcode = -1; | |
323 | break; | |
324 | } | |
c68f6200 AS |
325 | wpa_s = wpa_supplicant_add_iface(global, &ifaces[i]); |
326 | if (wpa_s == NULL) { | |
327 | exitcode = -1; | |
328 | break; | |
329 | } | |
6fc6879b JM |
330 | } |
331 | ||
332 | if (exitcode == 0) | |
333 | exitcode = wpa_supplicant_run(global); | |
334 | ||
335 | wpa_supplicant_deinit(global); | |
336 | ||
337 | out: | |
392824ef | 338 | wpa_supplicant_fd_workaround(0); |
6fc6879b JM |
339 | os_free(ifaces); |
340 | os_free(params.pid_file); | |
341 | ||
342 | os_program_deinit(); | |
343 | ||
344 | return exitcode; | |
345 | } |