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1 | /* | |
2 | * WPA Supplicant / privileged helper program | |
3 | * Copyright (c) 2007-2009, Jouni Malinen <j@w1.fi> | |
4 | * | |
5 | * This software may be distributed under the terms of the BSD license. | |
6 | * See README for more details. | |
7 | */ | |
8 | ||
9 | #include "includes.h" | |
10 | #ifdef __linux__ | |
11 | #include <fcntl.h> | |
12 | #endif /* __linux__ */ | |
13 | #include <sys/un.h> | |
14 | #include <sys/stat.h> | |
15 | ||
16 | #include "common.h" | |
17 | #include "eloop.h" | |
18 | #include "common/version.h" | |
19 | #include "drivers/driver.h" | |
20 | #include "l2_packet/l2_packet.h" | |
21 | #include "common/privsep_commands.h" | |
22 | #include "common/ieee802_11_defs.h" | |
23 | ||
24 | ||
25 | struct wpa_priv_interface { | |
26 | struct wpa_priv_interface *next; | |
27 | char *driver_name; | |
28 | char *ifname; | |
29 | char *sock_name; | |
30 | int fd; | |
31 | ||
32 | void *ctx; | |
33 | ||
34 | const struct wpa_driver_ops *driver; | |
35 | void *drv_priv; | |
36 | void *drv_global_priv; | |
37 | struct sockaddr_un drv_addr; | |
38 | int wpas_registered; | |
39 | ||
40 | /* TODO: add support for multiple l2 connections */ | |
41 | struct l2_packet_data *l2; | |
42 | struct sockaddr_un l2_addr; | |
43 | }; | |
44 | ||
45 | struct wpa_priv_global { | |
46 | struct wpa_priv_interface *interfaces; | |
47 | }; | |
48 | ||
49 | ||
50 | static void wpa_priv_cmd_register(struct wpa_priv_interface *iface, | |
51 | struct sockaddr_un *from) | |
52 | { | |
53 | if (iface->drv_priv) { | |
54 | wpa_printf(MSG_DEBUG, "Cleaning up forgotten driver instance"); | |
55 | if (iface->driver->deinit) | |
56 | iface->driver->deinit(iface->drv_priv); | |
57 | iface->drv_priv = NULL; | |
58 | if (iface->drv_global_priv) { | |
59 | iface->driver->global_deinit(iface->drv_global_priv); | |
60 | iface->drv_global_priv = NULL; | |
61 | } | |
62 | iface->wpas_registered = 0; | |
63 | } | |
64 | ||
65 | if (iface->l2) { | |
66 | wpa_printf(MSG_DEBUG, "Cleaning up forgotten l2_packet " | |
67 | "instance"); | |
68 | l2_packet_deinit(iface->l2); | |
69 | iface->l2 = NULL; | |
70 | } | |
71 | ||
72 | if (iface->driver->init2) { | |
73 | if (iface->driver->global_init) { | |
74 | iface->drv_global_priv = | |
75 | iface->driver->global_init(iface->ctx); | |
76 | if (!iface->drv_global_priv) { | |
77 | wpa_printf(MSG_INFO, | |
78 | "Failed to initialize driver global context"); | |
79 | return; | |
80 | } | |
81 | } else { | |
82 | iface->drv_global_priv = NULL; | |
83 | } | |
84 | iface->drv_priv = iface->driver->init2(iface, iface->ifname, | |
85 | iface->drv_global_priv); | |
86 | } else if (iface->driver->init) { | |
87 | iface->drv_priv = iface->driver->init(iface, iface->ifname); | |
88 | } else { | |
89 | return; | |
90 | } | |
91 | if (iface->drv_priv == NULL) { | |
92 | wpa_printf(MSG_DEBUG, "Failed to initialize driver wrapper"); | |
93 | return; | |
94 | } | |
95 | ||
96 | wpa_printf(MSG_DEBUG, "Driver wrapper '%s' initialized for interface " | |
97 | "'%s'", iface->driver_name, iface->ifname); | |
98 | ||
99 | os_memcpy(&iface->drv_addr, from, sizeof(iface->drv_addr)); | |
100 | iface->wpas_registered = 1; | |
101 | ||
102 | if (iface->driver->set_param && | |
103 | iface->driver->set_param(iface->drv_priv, NULL) < 0) { | |
104 | wpa_printf(MSG_ERROR, "Driver interface rejected param"); | |
105 | } | |
106 | } | |
107 | ||
108 | ||
109 | static void wpa_priv_cmd_unregister(struct wpa_priv_interface *iface, | |
110 | struct sockaddr_un *from) | |
111 | { | |
112 | if (iface->drv_priv) { | |
113 | if (iface->driver->deinit) | |
114 | iface->driver->deinit(iface->drv_priv); | |
115 | iface->drv_priv = NULL; | |
116 | if (iface->drv_global_priv) { | |
117 | iface->driver->global_deinit(iface->drv_global_priv); | |
118 | iface->drv_global_priv = NULL; | |
119 | } | |
120 | iface->wpas_registered = 0; | |
121 | } | |
122 | } | |
123 | ||
124 | ||
125 | static void wpa_priv_cmd_scan(struct wpa_priv_interface *iface, | |
126 | char *buf, size_t len) | |
127 | { | |
128 | struct wpa_driver_scan_params params; | |
129 | ||
130 | if (iface->drv_priv == NULL) | |
131 | return; | |
132 | ||
133 | os_memset(¶ms, 0, sizeof(params)); | |
134 | if (len) { | |
135 | params.ssids[0].ssid = (u8 *) buf; | |
136 | params.ssids[0].ssid_len = len; | |
137 | params.num_ssids = 1; | |
138 | } | |
139 | ||
140 | if (iface->driver->scan2) | |
141 | iface->driver->scan2(iface->drv_priv, ¶ms); | |
142 | } | |
143 | ||
144 | ||
145 | static void wpa_priv_get_scan_results2(struct wpa_priv_interface *iface, | |
146 | struct sockaddr_un *from) | |
147 | { | |
148 | struct wpa_scan_results *res; | |
149 | u8 *buf = NULL, *pos, *end; | |
150 | int val; | |
151 | size_t i; | |
152 | ||
153 | res = iface->driver->get_scan_results2(iface->drv_priv); | |
154 | if (res == NULL) | |
155 | goto fail; | |
156 | ||
157 | buf = os_malloc(60000); | |
158 | if (buf == NULL) | |
159 | goto fail; | |
160 | pos = buf; | |
161 | end = buf + 60000; | |
162 | val = res->num; | |
163 | os_memcpy(pos, &val, sizeof(int)); | |
164 | pos += sizeof(int); | |
165 | ||
166 | for (i = 0; i < res->num; i++) { | |
167 | struct wpa_scan_res *r = res->res[i]; | |
168 | val = sizeof(*r) + r->ie_len; | |
169 | if (end - pos < (int) sizeof(int) + val) | |
170 | break; | |
171 | os_memcpy(pos, &val, sizeof(int)); | |
172 | pos += sizeof(int); | |
173 | os_memcpy(pos, r, val); | |
174 | pos += val; | |
175 | } | |
176 | ||
177 | sendto(iface->fd, buf, pos - buf, 0, (struct sockaddr *) from, | |
178 | sizeof(*from)); | |
179 | ||
180 | os_free(buf); | |
181 | wpa_scan_results_free(res); | |
182 | return; | |
183 | ||
184 | fail: | |
185 | os_free(buf); | |
186 | wpa_scan_results_free(res); | |
187 | sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, sizeof(*from)); | |
188 | } | |
189 | ||
190 | ||
191 | static void wpa_priv_cmd_get_scan_results(struct wpa_priv_interface *iface, | |
192 | struct sockaddr_un *from) | |
193 | { | |
194 | if (iface->drv_priv == NULL) | |
195 | return; | |
196 | ||
197 | if (iface->driver->get_scan_results2) | |
198 | wpa_priv_get_scan_results2(iface, from); | |
199 | else | |
200 | sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, | |
201 | sizeof(*from)); | |
202 | } | |
203 | ||
204 | ||
205 | static void wpa_priv_cmd_authenticate(struct wpa_priv_interface *iface, | |
206 | void *buf, size_t len) | |
207 | { | |
208 | struct wpa_driver_auth_params params; | |
209 | struct privsep_cmd_authenticate *auth; | |
210 | int res, i; | |
211 | ||
212 | if (iface->drv_priv == NULL || iface->driver->authenticate == NULL) | |
213 | return; | |
214 | ||
215 | if (len < sizeof(*auth)) { | |
216 | wpa_printf(MSG_DEBUG, "Invalid authentication request"); | |
217 | return; | |
218 | } | |
219 | ||
220 | auth = buf; | |
221 | if (sizeof(*auth) + auth->ie_len + auth->auth_data_len > len) { | |
222 | wpa_printf(MSG_DEBUG, "Authentication request overflow"); | |
223 | return; | |
224 | } | |
225 | ||
226 | os_memset(¶ms, 0, sizeof(params)); | |
227 | params.freq = auth->freq; | |
228 | params.bssid = auth->bssid; | |
229 | params.ssid = auth->ssid; | |
230 | if (auth->ssid_len > SSID_MAX_LEN) | |
231 | return; | |
232 | params.ssid_len = auth->ssid_len; | |
233 | params.auth_alg = auth->auth_alg; | |
234 | for (i = 0; i < 4; i++) { | |
235 | if (auth->wep_key_len[i]) { | |
236 | params.wep_key[i] = auth->wep_key[i]; | |
237 | params.wep_key_len[i] = auth->wep_key_len[i]; | |
238 | } | |
239 | } | |
240 | params.wep_tx_keyidx = auth->wep_tx_keyidx; | |
241 | params.local_state_change = auth->local_state_change; | |
242 | params.p2p = auth->p2p; | |
243 | if (auth->ie_len) { | |
244 | params.ie = (u8 *) (auth + 1); | |
245 | params.ie_len = auth->ie_len; | |
246 | } | |
247 | if (auth->auth_data_len) { | |
248 | params.auth_data = ((u8 *) (auth + 1)) + auth->ie_len; | |
249 | params.auth_data_len = auth->auth_data_len; | |
250 | } | |
251 | ||
252 | res = iface->driver->authenticate(iface->drv_priv, ¶ms); | |
253 | wpa_printf(MSG_DEBUG, "drv->authenticate: res=%d", res); | |
254 | } | |
255 | ||
256 | ||
257 | static void wpa_priv_cmd_associate(struct wpa_priv_interface *iface, | |
258 | void *buf, size_t len) | |
259 | { | |
260 | struct wpa_driver_associate_params params; | |
261 | struct privsep_cmd_associate *assoc; | |
262 | u8 *bssid; | |
263 | int res; | |
264 | ||
265 | if (iface->drv_priv == NULL || iface->driver->associate == NULL) | |
266 | return; | |
267 | ||
268 | if (len < sizeof(*assoc)) { | |
269 | wpa_printf(MSG_DEBUG, "Invalid association request"); | |
270 | return; | |
271 | } | |
272 | ||
273 | assoc = buf; | |
274 | if (sizeof(*assoc) + assoc->wpa_ie_len > len) { | |
275 | wpa_printf(MSG_DEBUG, "Association request overflow"); | |
276 | return; | |
277 | } | |
278 | ||
279 | os_memset(¶ms, 0, sizeof(params)); | |
280 | bssid = assoc->bssid; | |
281 | if (bssid[0] | bssid[1] | bssid[2] | bssid[3] | bssid[4] | bssid[5]) | |
282 | params.bssid = bssid; | |
283 | params.ssid = assoc->ssid; | |
284 | if (assoc->ssid_len > SSID_MAX_LEN) | |
285 | return; | |
286 | params.ssid_len = assoc->ssid_len; | |
287 | params.freq.mode = assoc->hwmode; | |
288 | params.freq.freq = assoc->freq; | |
289 | params.freq.channel = assoc->channel; | |
290 | if (assoc->wpa_ie_len) { | |
291 | params.wpa_ie = (u8 *) (assoc + 1); | |
292 | params.wpa_ie_len = assoc->wpa_ie_len; | |
293 | } | |
294 | params.pairwise_suite = assoc->pairwise_suite; | |
295 | params.group_suite = assoc->group_suite; | |
296 | params.key_mgmt_suite = assoc->key_mgmt_suite; | |
297 | params.auth_alg = assoc->auth_alg; | |
298 | params.mode = assoc->mode; | |
299 | ||
300 | res = iface->driver->associate(iface->drv_priv, ¶ms); | |
301 | wpa_printf(MSG_DEBUG, "drv->associate: res=%d", res); | |
302 | } | |
303 | ||
304 | ||
305 | static void wpa_priv_cmd_get_bssid(struct wpa_priv_interface *iface, | |
306 | struct sockaddr_un *from) | |
307 | { | |
308 | u8 bssid[ETH_ALEN]; | |
309 | ||
310 | if (iface->drv_priv == NULL) | |
311 | goto fail; | |
312 | ||
313 | if (iface->driver->get_bssid == NULL || | |
314 | iface->driver->get_bssid(iface->drv_priv, bssid) < 0) | |
315 | goto fail; | |
316 | ||
317 | sendto(iface->fd, bssid, ETH_ALEN, 0, (struct sockaddr *) from, | |
318 | sizeof(*from)); | |
319 | return; | |
320 | ||
321 | fail: | |
322 | sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, sizeof(*from)); | |
323 | } | |
324 | ||
325 | ||
326 | static void wpa_priv_cmd_get_ssid(struct wpa_priv_interface *iface, | |
327 | struct sockaddr_un *from) | |
328 | { | |
329 | u8 ssid[sizeof(int) + SSID_MAX_LEN]; | |
330 | int res; | |
331 | ||
332 | if (iface->drv_priv == NULL) | |
333 | goto fail; | |
334 | ||
335 | if (iface->driver->get_ssid == NULL) | |
336 | goto fail; | |
337 | ||
338 | res = iface->driver->get_ssid(iface->drv_priv, &ssid[sizeof(int)]); | |
339 | if (res < 0 || res > SSID_MAX_LEN) | |
340 | goto fail; | |
341 | os_memcpy(ssid, &res, sizeof(int)); | |
342 | ||
343 | sendto(iface->fd, ssid, sizeof(ssid), 0, (struct sockaddr *) from, | |
344 | sizeof(*from)); | |
345 | return; | |
346 | ||
347 | fail: | |
348 | sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, sizeof(*from)); | |
349 | } | |
350 | ||
351 | ||
352 | static void wpa_priv_cmd_set_key(struct wpa_priv_interface *iface, | |
353 | void *buf, size_t len) | |
354 | { | |
355 | struct privsep_cmd_set_key *params; | |
356 | int res; | |
357 | ||
358 | if (iface->drv_priv == NULL || iface->driver->set_key == NULL) | |
359 | return; | |
360 | ||
361 | if (len != sizeof(*params)) { | |
362 | wpa_printf(MSG_DEBUG, "Invalid set_key request"); | |
363 | return; | |
364 | } | |
365 | ||
366 | params = buf; | |
367 | ||
368 | res = iface->driver->set_key(iface->ifname, iface->drv_priv, | |
369 | params->alg, | |
370 | params->addr, params->key_idx, | |
371 | params->set_tx, | |
372 | params->seq_len ? params->seq : NULL, | |
373 | params->seq_len, | |
374 | params->key_len ? params->key : NULL, | |
375 | params->key_len); | |
376 | wpa_printf(MSG_DEBUG, "drv->set_key: res=%d", res); | |
377 | } | |
378 | ||
379 | ||
380 | static void wpa_priv_cmd_get_capa(struct wpa_priv_interface *iface, | |
381 | struct sockaddr_un *from) | |
382 | { | |
383 | struct wpa_driver_capa capa; | |
384 | ||
385 | if (iface->drv_priv == NULL) | |
386 | goto fail; | |
387 | ||
388 | if (iface->driver->get_capa == NULL || | |
389 | iface->driver->get_capa(iface->drv_priv, &capa) < 0) | |
390 | goto fail; | |
391 | ||
392 | /* For now, no support for passing extended_capa pointers */ | |
393 | capa.extended_capa = NULL; | |
394 | capa.extended_capa_mask = NULL; | |
395 | capa.extended_capa_len = 0; | |
396 | sendto(iface->fd, &capa, sizeof(capa), 0, (struct sockaddr *) from, | |
397 | sizeof(*from)); | |
398 | return; | |
399 | ||
400 | fail: | |
401 | sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, sizeof(*from)); | |
402 | } | |
403 | ||
404 | ||
405 | static void wpa_priv_l2_rx(void *ctx, const u8 *src_addr, const u8 *buf, | |
406 | size_t len) | |
407 | { | |
408 | struct wpa_priv_interface *iface = ctx; | |
409 | struct msghdr msg; | |
410 | struct iovec io[2]; | |
411 | ||
412 | io[0].iov_base = (u8 *) src_addr; | |
413 | io[0].iov_len = ETH_ALEN; | |
414 | io[1].iov_base = (u8 *) buf; | |
415 | io[1].iov_len = len; | |
416 | ||
417 | os_memset(&msg, 0, sizeof(msg)); | |
418 | msg.msg_iov = io; | |
419 | msg.msg_iovlen = 2; | |
420 | msg.msg_name = &iface->l2_addr; | |
421 | msg.msg_namelen = sizeof(iface->l2_addr); | |
422 | ||
423 | if (sendmsg(iface->fd, &msg, 0) < 0) { | |
424 | wpa_printf(MSG_ERROR, "sendmsg(l2 rx): %s", strerror(errno)); | |
425 | } | |
426 | } | |
427 | ||
428 | ||
429 | static void wpa_priv_cmd_l2_register(struct wpa_priv_interface *iface, | |
430 | struct sockaddr_un *from, | |
431 | void *buf, size_t len) | |
432 | { | |
433 | int *reg_cmd = buf; | |
434 | u8 own_addr[ETH_ALEN]; | |
435 | int res; | |
436 | u16 proto; | |
437 | ||
438 | if (len != 2 * sizeof(int)) { | |
439 | wpa_printf(MSG_DEBUG, "Invalid l2_register length %lu", | |
440 | (unsigned long) len); | |
441 | return; | |
442 | } | |
443 | ||
444 | proto = reg_cmd[0]; | |
445 | if (proto != ETH_P_EAPOL && proto != ETH_P_RSN_PREAUTH && | |
446 | proto != ETH_P_80211_ENCAP) { | |
447 | wpa_printf(MSG_DEBUG, "Refused l2_packet connection for " | |
448 | "ethertype 0x%x", proto); | |
449 | return; | |
450 | } | |
451 | ||
452 | if (iface->l2) { | |
453 | wpa_printf(MSG_DEBUG, "Cleaning up forgotten l2_packet " | |
454 | "instance"); | |
455 | l2_packet_deinit(iface->l2); | |
456 | iface->l2 = NULL; | |
457 | } | |
458 | ||
459 | os_memcpy(&iface->l2_addr, from, sizeof(iface->l2_addr)); | |
460 | ||
461 | iface->l2 = l2_packet_init(iface->ifname, NULL, proto, | |
462 | wpa_priv_l2_rx, iface, reg_cmd[1]); | |
463 | if (iface->l2 == NULL) { | |
464 | wpa_printf(MSG_DEBUG, "Failed to initialize l2_packet " | |
465 | "instance for protocol %d", proto); | |
466 | return; | |
467 | } | |
468 | ||
469 | if (l2_packet_get_own_addr(iface->l2, own_addr) < 0) { | |
470 | wpa_printf(MSG_DEBUG, "Failed to get own address from " | |
471 | "l2_packet"); | |
472 | l2_packet_deinit(iface->l2); | |
473 | iface->l2 = NULL; | |
474 | return; | |
475 | } | |
476 | ||
477 | res = sendto(iface->fd, own_addr, ETH_ALEN, 0, | |
478 | (struct sockaddr *) from, sizeof(*from)); | |
479 | wpa_printf(MSG_DEBUG, "L2 registration: res=%d", res); | |
480 | } | |
481 | ||
482 | ||
483 | static void wpa_priv_cmd_l2_unregister(struct wpa_priv_interface *iface, | |
484 | struct sockaddr_un *from) | |
485 | { | |
486 | if (iface->l2) { | |
487 | l2_packet_deinit(iface->l2); | |
488 | iface->l2 = NULL; | |
489 | } | |
490 | } | |
491 | ||
492 | ||
493 | static void wpa_priv_cmd_l2_notify_auth_start(struct wpa_priv_interface *iface, | |
494 | struct sockaddr_un *from) | |
495 | { | |
496 | if (iface->l2) | |
497 | l2_packet_notify_auth_start(iface->l2); | |
498 | } | |
499 | ||
500 | ||
501 | static void wpa_priv_cmd_l2_send(struct wpa_priv_interface *iface, | |
502 | struct sockaddr_un *from, | |
503 | void *buf, size_t len) | |
504 | { | |
505 | u8 *dst_addr; | |
506 | u16 proto; | |
507 | int res; | |
508 | ||
509 | if (iface->l2 == NULL) | |
510 | return; | |
511 | ||
512 | if (len < ETH_ALEN + 2) { | |
513 | wpa_printf(MSG_DEBUG, "Too short L2 send packet (len=%lu)", | |
514 | (unsigned long) len); | |
515 | return; | |
516 | } | |
517 | ||
518 | dst_addr = buf; | |
519 | os_memcpy(&proto, buf + ETH_ALEN, 2); | |
520 | ||
521 | if (proto != ETH_P_EAPOL && proto != ETH_P_RSN_PREAUTH) { | |
522 | wpa_printf(MSG_DEBUG, "Refused l2_packet send for ethertype " | |
523 | "0x%x", proto); | |
524 | return; | |
525 | } | |
526 | ||
527 | res = l2_packet_send(iface->l2, dst_addr, proto, buf + ETH_ALEN + 2, | |
528 | len - ETH_ALEN - 2); | |
529 | wpa_printf(MSG_DEBUG, "L2 send: res=%d", res); | |
530 | } | |
531 | ||
532 | ||
533 | static void wpa_priv_cmd_set_country(struct wpa_priv_interface *iface, | |
534 | char *buf) | |
535 | { | |
536 | if (iface->drv_priv == NULL || iface->driver->set_country == NULL || | |
537 | *buf == '\0') | |
538 | return; | |
539 | ||
540 | iface->driver->set_country(iface->drv_priv, buf); | |
541 | } | |
542 | ||
543 | ||
544 | static void wpa_priv_receive(int sock, void *eloop_ctx, void *sock_ctx) | |
545 | { | |
546 | struct wpa_priv_interface *iface = eloop_ctx; | |
547 | char buf[2000], *pos; | |
548 | void *cmd_buf; | |
549 | size_t cmd_len; | |
550 | int res, cmd; | |
551 | struct sockaddr_un from; | |
552 | socklen_t fromlen = sizeof(from); | |
553 | ||
554 | res = recvfrom(sock, buf, sizeof(buf), 0, (struct sockaddr *) &from, | |
555 | &fromlen); | |
556 | if (res < 0) { | |
557 | wpa_printf(MSG_ERROR, "recvfrom: %s", strerror(errno)); | |
558 | return; | |
559 | } | |
560 | ||
561 | if (res < (int) sizeof(int)) { | |
562 | wpa_printf(MSG_DEBUG, "Too short command (len=%d)", res); | |
563 | return; | |
564 | } | |
565 | ||
566 | os_memcpy(&cmd, buf, sizeof(int)); | |
567 | wpa_printf(MSG_DEBUG, "Command %d for interface %s", | |
568 | cmd, iface->ifname); | |
569 | cmd_buf = &buf[sizeof(int)]; | |
570 | cmd_len = res - sizeof(int); | |
571 | ||
572 | switch (cmd) { | |
573 | case PRIVSEP_CMD_REGISTER: | |
574 | wpa_priv_cmd_register(iface, &from); | |
575 | break; | |
576 | case PRIVSEP_CMD_UNREGISTER: | |
577 | wpa_priv_cmd_unregister(iface, &from); | |
578 | break; | |
579 | case PRIVSEP_CMD_SCAN: | |
580 | wpa_priv_cmd_scan(iface, cmd_buf, cmd_len); | |
581 | break; | |
582 | case PRIVSEP_CMD_GET_SCAN_RESULTS: | |
583 | wpa_priv_cmd_get_scan_results(iface, &from); | |
584 | break; | |
585 | case PRIVSEP_CMD_ASSOCIATE: | |
586 | wpa_priv_cmd_associate(iface, cmd_buf, cmd_len); | |
587 | break; | |
588 | case PRIVSEP_CMD_GET_BSSID: | |
589 | wpa_priv_cmd_get_bssid(iface, &from); | |
590 | break; | |
591 | case PRIVSEP_CMD_GET_SSID: | |
592 | wpa_priv_cmd_get_ssid(iface, &from); | |
593 | break; | |
594 | case PRIVSEP_CMD_SET_KEY: | |
595 | wpa_priv_cmd_set_key(iface, cmd_buf, cmd_len); | |
596 | break; | |
597 | case PRIVSEP_CMD_GET_CAPA: | |
598 | wpa_priv_cmd_get_capa(iface, &from); | |
599 | break; | |
600 | case PRIVSEP_CMD_L2_REGISTER: | |
601 | wpa_priv_cmd_l2_register(iface, &from, cmd_buf, cmd_len); | |
602 | break; | |
603 | case PRIVSEP_CMD_L2_UNREGISTER: | |
604 | wpa_priv_cmd_l2_unregister(iface, &from); | |
605 | break; | |
606 | case PRIVSEP_CMD_L2_NOTIFY_AUTH_START: | |
607 | wpa_priv_cmd_l2_notify_auth_start(iface, &from); | |
608 | break; | |
609 | case PRIVSEP_CMD_L2_SEND: | |
610 | wpa_priv_cmd_l2_send(iface, &from, cmd_buf, cmd_len); | |
611 | break; | |
612 | case PRIVSEP_CMD_SET_COUNTRY: | |
613 | pos = cmd_buf; | |
614 | if (pos + cmd_len >= buf + sizeof(buf)) | |
615 | break; | |
616 | pos[cmd_len] = '\0'; | |
617 | wpa_priv_cmd_set_country(iface, pos); | |
618 | break; | |
619 | case PRIVSEP_CMD_AUTHENTICATE: | |
620 | wpa_priv_cmd_authenticate(iface, cmd_buf, cmd_len); | |
621 | break; | |
622 | } | |
623 | } | |
624 | ||
625 | ||
626 | static void wpa_priv_interface_deinit(struct wpa_priv_interface *iface) | |
627 | { | |
628 | if (iface->drv_priv && iface->driver->deinit) | |
629 | iface->driver->deinit(iface->drv_priv); | |
630 | ||
631 | if (iface->fd >= 0) { | |
632 | eloop_unregister_read_sock(iface->fd); | |
633 | close(iface->fd); | |
634 | unlink(iface->sock_name); | |
635 | } | |
636 | ||
637 | if (iface->l2) | |
638 | l2_packet_deinit(iface->l2); | |
639 | ||
640 | os_free(iface->ifname); | |
641 | os_free(iface->driver_name); | |
642 | os_free(iface->sock_name); | |
643 | os_free(iface); | |
644 | } | |
645 | ||
646 | ||
647 | static struct wpa_priv_interface * | |
648 | wpa_priv_interface_init(void *ctx, const char *dir, const char *params) | |
649 | { | |
650 | struct wpa_priv_interface *iface; | |
651 | char *pos; | |
652 | size_t len; | |
653 | struct sockaddr_un addr; | |
654 | int i; | |
655 | ||
656 | pos = os_strchr(params, ':'); | |
657 | if (pos == NULL) | |
658 | return NULL; | |
659 | ||
660 | iface = os_zalloc(sizeof(*iface)); | |
661 | if (iface == NULL) | |
662 | return NULL; | |
663 | iface->fd = -1; | |
664 | iface->ctx = ctx; | |
665 | ||
666 | len = pos - params; | |
667 | iface->driver_name = dup_binstr(params, len); | |
668 | if (iface->driver_name == NULL) { | |
669 | wpa_priv_interface_deinit(iface); | |
670 | return NULL; | |
671 | } | |
672 | ||
673 | for (i = 0; wpa_drivers[i]; i++) { | |
674 | if (os_strcmp(iface->driver_name, | |
675 | wpa_drivers[i]->name) == 0) { | |
676 | iface->driver = wpa_drivers[i]; | |
677 | break; | |
678 | } | |
679 | } | |
680 | if (iface->driver == NULL) { | |
681 | wpa_printf(MSG_ERROR, "Unsupported driver '%s'", | |
682 | iface->driver_name); | |
683 | wpa_priv_interface_deinit(iface); | |
684 | return NULL; | |
685 | } | |
686 | ||
687 | pos++; | |
688 | iface->ifname = os_strdup(pos); | |
689 | if (iface->ifname == NULL) { | |
690 | wpa_priv_interface_deinit(iface); | |
691 | return NULL; | |
692 | } | |
693 | ||
694 | len = os_strlen(dir) + 1 + os_strlen(iface->ifname); | |
695 | iface->sock_name = os_malloc(len + 1); | |
696 | if (iface->sock_name == NULL) { | |
697 | wpa_priv_interface_deinit(iface); | |
698 | return NULL; | |
699 | } | |
700 | ||
701 | os_snprintf(iface->sock_name, len + 1, "%s/%s", dir, iface->ifname); | |
702 | if (os_strlen(iface->sock_name) >= sizeof(addr.sun_path)) { | |
703 | wpa_priv_interface_deinit(iface); | |
704 | return NULL; | |
705 | } | |
706 | ||
707 | iface->fd = socket(PF_UNIX, SOCK_DGRAM, 0); | |
708 | if (iface->fd < 0) { | |
709 | wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno)); | |
710 | wpa_priv_interface_deinit(iface); | |
711 | return NULL; | |
712 | } | |
713 | ||
714 | os_memset(&addr, 0, sizeof(addr)); | |
715 | addr.sun_family = AF_UNIX; | |
716 | os_strlcpy(addr.sun_path, iface->sock_name, sizeof(addr.sun_path)); | |
717 | ||
718 | if (bind(iface->fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) { | |
719 | wpa_printf(MSG_DEBUG, "bind(PF_UNIX) failed: %s", | |
720 | strerror(errno)); | |
721 | if (connect(iface->fd, (struct sockaddr *) &addr, | |
722 | sizeof(addr)) < 0) { | |
723 | wpa_printf(MSG_DEBUG, "Socket exists, but does not " | |
724 | "allow connections - assuming it was " | |
725 | "leftover from forced program termination"); | |
726 | if (unlink(iface->sock_name) < 0) { | |
727 | wpa_printf(MSG_ERROR, | |
728 | "Could not unlink existing ctrl_iface socket '%s': %s", | |
729 | iface->sock_name, strerror(errno)); | |
730 | goto fail; | |
731 | } | |
732 | if (bind(iface->fd, (struct sockaddr *) &addr, | |
733 | sizeof(addr)) < 0) { | |
734 | wpa_printf(MSG_ERROR, | |
735 | "wpa-priv-iface-init: bind(PF_UNIX): %s", | |
736 | strerror(errno)); | |
737 | goto fail; | |
738 | } | |
739 | wpa_printf(MSG_DEBUG, "Successfully replaced leftover " | |
740 | "socket '%s'", iface->sock_name); | |
741 | } else { | |
742 | wpa_printf(MSG_INFO, "Socket exists and seems to be " | |
743 | "in use - cannot override it"); | |
744 | wpa_printf(MSG_INFO, "Delete '%s' manually if it is " | |
745 | "not used anymore", iface->sock_name); | |
746 | goto fail; | |
747 | } | |
748 | } | |
749 | ||
750 | if (chmod(iface->sock_name, S_IRWXU | S_IRWXG | S_IRWXO) < 0) { | |
751 | wpa_printf(MSG_ERROR, "chmod: %s", strerror(errno)); | |
752 | goto fail; | |
753 | } | |
754 | ||
755 | eloop_register_read_sock(iface->fd, wpa_priv_receive, iface, NULL); | |
756 | ||
757 | return iface; | |
758 | ||
759 | fail: | |
760 | wpa_priv_interface_deinit(iface); | |
761 | return NULL; | |
762 | } | |
763 | ||
764 | ||
765 | static int wpa_priv_send_event(struct wpa_priv_interface *iface, int event, | |
766 | const void *data, size_t data_len) | |
767 | { | |
768 | struct msghdr msg; | |
769 | struct iovec io[2]; | |
770 | ||
771 | io[0].iov_base = &event; | |
772 | io[0].iov_len = sizeof(event); | |
773 | io[1].iov_base = (u8 *) data; | |
774 | io[1].iov_len = data_len; | |
775 | ||
776 | os_memset(&msg, 0, sizeof(msg)); | |
777 | msg.msg_iov = io; | |
778 | msg.msg_iovlen = data ? 2 : 1; | |
779 | msg.msg_name = &iface->drv_addr; | |
780 | msg.msg_namelen = sizeof(iface->drv_addr); | |
781 | ||
782 | if (sendmsg(iface->fd, &msg, 0) < 0) { | |
783 | wpa_printf(MSG_ERROR, "sendmsg(wpas_socket): %s", | |
784 | strerror(errno)); | |
785 | return -1; | |
786 | } | |
787 | ||
788 | return 0; | |
789 | } | |
790 | ||
791 | ||
792 | static void wpa_priv_send_auth(struct wpa_priv_interface *iface, | |
793 | union wpa_event_data *data) | |
794 | { | |
795 | size_t buflen = sizeof(struct privsep_event_auth) + data->auth.ies_len; | |
796 | struct privsep_event_auth *auth; | |
797 | u8 *buf, *pos; | |
798 | ||
799 | buf = os_malloc(buflen); | |
800 | if (buf == NULL) | |
801 | return; | |
802 | ||
803 | auth = (struct privsep_event_auth *) buf; | |
804 | pos = (u8 *) (auth + 1); | |
805 | ||
806 | os_memcpy(auth->peer, data->auth.peer, ETH_ALEN); | |
807 | os_memcpy(auth->bssid, data->auth.bssid, ETH_ALEN); | |
808 | auth->auth_type = data->auth.auth_type; | |
809 | auth->auth_transaction = data->auth.auth_transaction; | |
810 | auth->status_code = data->auth.status_code; | |
811 | if (data->auth.ies) { | |
812 | os_memcpy(pos, data->auth.ies, data->auth.ies_len); | |
813 | auth->ies_len = data->auth.ies_len; | |
814 | } | |
815 | ||
816 | wpa_priv_send_event(iface, PRIVSEP_EVENT_AUTH, buf, buflen); | |
817 | ||
818 | os_free(buf); | |
819 | } | |
820 | ||
821 | ||
822 | static void wpa_priv_send_assoc(struct wpa_priv_interface *iface, int event, | |
823 | union wpa_event_data *data) | |
824 | { | |
825 | size_t buflen = 3 * sizeof(int); | |
826 | u8 *buf, *pos; | |
827 | int len; | |
828 | ||
829 | if (data) { | |
830 | buflen += data->assoc_info.req_ies_len + | |
831 | data->assoc_info.resp_ies_len + | |
832 | data->assoc_info.beacon_ies_len; | |
833 | } | |
834 | ||
835 | buf = os_malloc(buflen); | |
836 | if (buf == NULL) | |
837 | return; | |
838 | ||
839 | pos = buf; | |
840 | ||
841 | if (data && data->assoc_info.req_ies) { | |
842 | len = data->assoc_info.req_ies_len; | |
843 | os_memcpy(pos, &len, sizeof(int)); | |
844 | pos += sizeof(int); | |
845 | os_memcpy(pos, data->assoc_info.req_ies, len); | |
846 | pos += len; | |
847 | } else { | |
848 | len = 0; | |
849 | os_memcpy(pos, &len, sizeof(int)); | |
850 | pos += sizeof(int); | |
851 | } | |
852 | ||
853 | if (data && data->assoc_info.resp_ies) { | |
854 | len = data->assoc_info.resp_ies_len; | |
855 | os_memcpy(pos, &len, sizeof(int)); | |
856 | pos += sizeof(int); | |
857 | os_memcpy(pos, data->assoc_info.resp_ies, len); | |
858 | pos += len; | |
859 | } else { | |
860 | len = 0; | |
861 | os_memcpy(pos, &len, sizeof(int)); | |
862 | pos += sizeof(int); | |
863 | } | |
864 | ||
865 | if (data && data->assoc_info.beacon_ies) { | |
866 | len = data->assoc_info.beacon_ies_len; | |
867 | os_memcpy(pos, &len, sizeof(int)); | |
868 | pos += sizeof(int); | |
869 | os_memcpy(pos, data->assoc_info.beacon_ies, len); | |
870 | pos += len; | |
871 | } else { | |
872 | len = 0; | |
873 | os_memcpy(pos, &len, sizeof(int)); | |
874 | pos += sizeof(int); | |
875 | } | |
876 | ||
877 | wpa_priv_send_event(iface, event, buf, buflen); | |
878 | ||
879 | os_free(buf); | |
880 | } | |
881 | ||
882 | ||
883 | static void wpa_priv_send_interface_status(struct wpa_priv_interface *iface, | |
884 | union wpa_event_data *data) | |
885 | { | |
886 | int ievent; | |
887 | size_t len, maxlen; | |
888 | u8 *buf; | |
889 | char *ifname; | |
890 | ||
891 | if (data == NULL) | |
892 | return; | |
893 | ||
894 | ievent = data->interface_status.ievent; | |
895 | maxlen = sizeof(data->interface_status.ifname); | |
896 | ifname = data->interface_status.ifname; | |
897 | for (len = 0; len < maxlen && ifname[len]; len++) | |
898 | ; | |
899 | ||
900 | buf = os_malloc(sizeof(int) + len); | |
901 | if (buf == NULL) | |
902 | return; | |
903 | ||
904 | os_memcpy(buf, &ievent, sizeof(int)); | |
905 | os_memcpy(buf + sizeof(int), ifname, len); | |
906 | ||
907 | wpa_priv_send_event(iface, PRIVSEP_EVENT_INTERFACE_STATUS, | |
908 | buf, sizeof(int) + len); | |
909 | ||
910 | os_free(buf); | |
911 | ||
912 | } | |
913 | ||
914 | ||
915 | static void wpa_priv_send_ft_response(struct wpa_priv_interface *iface, | |
916 | union wpa_event_data *data) | |
917 | { | |
918 | size_t len; | |
919 | u8 *buf, *pos; | |
920 | ||
921 | if (data == NULL || data->ft_ies.ies == NULL) | |
922 | return; | |
923 | ||
924 | len = sizeof(int) + ETH_ALEN + data->ft_ies.ies_len; | |
925 | buf = os_malloc(len); | |
926 | if (buf == NULL) | |
927 | return; | |
928 | ||
929 | pos = buf; | |
930 | os_memcpy(pos, &data->ft_ies.ft_action, sizeof(int)); | |
931 | pos += sizeof(int); | |
932 | os_memcpy(pos, data->ft_ies.target_ap, ETH_ALEN); | |
933 | pos += ETH_ALEN; | |
934 | os_memcpy(pos, data->ft_ies.ies, data->ft_ies.ies_len); | |
935 | ||
936 | wpa_priv_send_event(iface, PRIVSEP_EVENT_FT_RESPONSE, buf, len); | |
937 | ||
938 | os_free(buf); | |
939 | ||
940 | } | |
941 | ||
942 | ||
943 | void wpa_supplicant_event(void *ctx, enum wpa_event_type event, | |
944 | union wpa_event_data *data) | |
945 | { | |
946 | struct wpa_priv_interface *iface = ctx; | |
947 | ||
948 | wpa_printf(MSG_DEBUG, "%s - event=%d", __func__, event); | |
949 | ||
950 | if (!iface->wpas_registered) { | |
951 | wpa_printf(MSG_DEBUG, "Driver event received, but " | |
952 | "wpa_supplicant not registered"); | |
953 | return; | |
954 | } | |
955 | ||
956 | switch (event) { | |
957 | case EVENT_ASSOC: | |
958 | wpa_priv_send_assoc(iface, PRIVSEP_EVENT_ASSOC, data); | |
959 | break; | |
960 | case EVENT_DISASSOC: | |
961 | wpa_priv_send_event(iface, PRIVSEP_EVENT_DISASSOC, NULL, 0); | |
962 | break; | |
963 | case EVENT_ASSOCINFO: | |
964 | if (data == NULL) | |
965 | return; | |
966 | wpa_priv_send_assoc(iface, PRIVSEP_EVENT_ASSOCINFO, data); | |
967 | break; | |
968 | case EVENT_MICHAEL_MIC_FAILURE: | |
969 | if (data == NULL) | |
970 | return; | |
971 | wpa_priv_send_event(iface, PRIVSEP_EVENT_MICHAEL_MIC_FAILURE, | |
972 | &data->michael_mic_failure.unicast, | |
973 | sizeof(int)); | |
974 | break; | |
975 | case EVENT_SCAN_STARTED: | |
976 | wpa_priv_send_event(iface, PRIVSEP_EVENT_SCAN_STARTED, NULL, | |
977 | 0); | |
978 | break; | |
979 | case EVENT_SCAN_RESULTS: | |
980 | wpa_priv_send_event(iface, PRIVSEP_EVENT_SCAN_RESULTS, NULL, | |
981 | 0); | |
982 | break; | |
983 | case EVENT_INTERFACE_STATUS: | |
984 | wpa_priv_send_interface_status(iface, data); | |
985 | break; | |
986 | case EVENT_PMKID_CANDIDATE: | |
987 | if (data == NULL) | |
988 | return; | |
989 | wpa_priv_send_event(iface, PRIVSEP_EVENT_PMKID_CANDIDATE, | |
990 | &data->pmkid_candidate, | |
991 | sizeof(struct pmkid_candidate)); | |
992 | break; | |
993 | case EVENT_STKSTART: | |
994 | if (data == NULL) | |
995 | return; | |
996 | wpa_priv_send_event(iface, PRIVSEP_EVENT_STKSTART, | |
997 | &data->stkstart.peer, ETH_ALEN); | |
998 | break; | |
999 | case EVENT_FT_RESPONSE: | |
1000 | wpa_priv_send_ft_response(iface, data); | |
1001 | break; | |
1002 | case EVENT_AUTH: | |
1003 | wpa_priv_send_auth(iface, data); | |
1004 | break; | |
1005 | default: | |
1006 | wpa_printf(MSG_DEBUG, "Unsupported driver event %d (%s) - TODO", | |
1007 | event, event_to_string(event)); | |
1008 | break; | |
1009 | } | |
1010 | } | |
1011 | ||
1012 | ||
1013 | void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event, | |
1014 | union wpa_event_data *data) | |
1015 | { | |
1016 | struct wpa_priv_global *global = ctx; | |
1017 | struct wpa_priv_interface *iface; | |
1018 | ||
1019 | if (event != EVENT_INTERFACE_STATUS) | |
1020 | return; | |
1021 | ||
1022 | for (iface = global->interfaces; iface; iface = iface->next) { | |
1023 | if (os_strcmp(iface->ifname, data->interface_status.ifname) == | |
1024 | 0) | |
1025 | break; | |
1026 | } | |
1027 | if (iface && iface->driver->get_ifindex) { | |
1028 | unsigned int ifindex; | |
1029 | ||
1030 | ifindex = iface->driver->get_ifindex(iface->drv_priv); | |
1031 | if (ifindex != data->interface_status.ifindex) { | |
1032 | wpa_printf(MSG_DEBUG, | |
1033 | "%s: interface status ifindex %d mismatch (%d)", | |
1034 | iface->ifname, ifindex, | |
1035 | data->interface_status.ifindex); | |
1036 | return; | |
1037 | } | |
1038 | } | |
1039 | if (iface) | |
1040 | wpa_supplicant_event(iface, event, data); | |
1041 | } | |
1042 | ||
1043 | ||
1044 | void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr, | |
1045 | const u8 *buf, size_t len) | |
1046 | { | |
1047 | struct wpa_priv_interface *iface = ctx; | |
1048 | struct msghdr msg; | |
1049 | struct iovec io[3]; | |
1050 | int event = PRIVSEP_EVENT_RX_EAPOL; | |
1051 | ||
1052 | wpa_printf(MSG_DEBUG, "RX EAPOL from driver"); | |
1053 | io[0].iov_base = &event; | |
1054 | io[0].iov_len = sizeof(event); | |
1055 | io[1].iov_base = (u8 *) src_addr; | |
1056 | io[1].iov_len = ETH_ALEN; | |
1057 | io[2].iov_base = (u8 *) buf; | |
1058 | io[2].iov_len = len; | |
1059 | ||
1060 | os_memset(&msg, 0, sizeof(msg)); | |
1061 | msg.msg_iov = io; | |
1062 | msg.msg_iovlen = 3; | |
1063 | msg.msg_name = &iface->drv_addr; | |
1064 | msg.msg_namelen = sizeof(iface->drv_addr); | |
1065 | ||
1066 | if (sendmsg(iface->fd, &msg, 0) < 0) | |
1067 | wpa_printf(MSG_ERROR, "sendmsg(wpas_socket): %s", | |
1068 | strerror(errno)); | |
1069 | } | |
1070 | ||
1071 | ||
1072 | static void wpa_priv_terminate(int sig, void *signal_ctx) | |
1073 | { | |
1074 | wpa_printf(MSG_DEBUG, "wpa_priv termination requested"); | |
1075 | eloop_terminate(); | |
1076 | } | |
1077 | ||
1078 | ||
1079 | static void wpa_priv_fd_workaround(void) | |
1080 | { | |
1081 | #ifdef __linux__ | |
1082 | int s, i; | |
1083 | /* When started from pcmcia-cs scripts, wpa_supplicant might start with | |
1084 | * fd 0, 1, and 2 closed. This will cause some issues because many | |
1085 | * places in wpa_supplicant are still printing out to stdout. As a | |
1086 | * workaround, make sure that fd's 0, 1, and 2 are not used for other | |
1087 | * sockets. */ | |
1088 | for (i = 0; i < 3; i++) { | |
1089 | s = open("/dev/null", O_RDWR); | |
1090 | if (s > 2) { | |
1091 | close(s); | |
1092 | break; | |
1093 | } | |
1094 | } | |
1095 | #endif /* __linux__ */ | |
1096 | } | |
1097 | ||
1098 | ||
1099 | static void usage(void) | |
1100 | { | |
1101 | printf("wpa_priv v" VERSION_STR "\n" | |
1102 | "Copyright (c) 2007-2016, Jouni Malinen <j@w1.fi> and " | |
1103 | "contributors\n" | |
1104 | "\n" | |
1105 | "usage:\n" | |
1106 | " wpa_priv [-Bdd] [-c<ctrl dir>] [-P<pid file>] " | |
1107 | "<driver:ifname> \\\n" | |
1108 | " [driver:ifname ...]\n"); | |
1109 | } | |
1110 | ||
1111 | ||
1112 | int main(int argc, char *argv[]) | |
1113 | { | |
1114 | int c, i; | |
1115 | int ret = -1; | |
1116 | char *pid_file = NULL; | |
1117 | int daemonize = 0; | |
1118 | char *ctrl_dir = "/var/run/wpa_priv"; | |
1119 | struct wpa_priv_global global; | |
1120 | struct wpa_priv_interface *iface; | |
1121 | ||
1122 | if (os_program_init()) | |
1123 | return -1; | |
1124 | ||
1125 | wpa_priv_fd_workaround(); | |
1126 | ||
1127 | os_memset(&global, 0, sizeof(global)); | |
1128 | global.interfaces = NULL; | |
1129 | ||
1130 | for (;;) { | |
1131 | c = getopt(argc, argv, "Bc:dP:"); | |
1132 | if (c < 0) | |
1133 | break; | |
1134 | switch (c) { | |
1135 | case 'B': | |
1136 | daemonize++; | |
1137 | break; | |
1138 | case 'c': | |
1139 | ctrl_dir = optarg; | |
1140 | break; | |
1141 | case 'd': | |
1142 | wpa_debug_level--; | |
1143 | break; | |
1144 | case 'P': | |
1145 | pid_file = os_rel2abs_path(optarg); | |
1146 | break; | |
1147 | default: | |
1148 | usage(); | |
1149 | goto out2; | |
1150 | } | |
1151 | } | |
1152 | ||
1153 | if (optind >= argc) { | |
1154 | usage(); | |
1155 | goto out2; | |
1156 | } | |
1157 | ||
1158 | wpa_printf(MSG_DEBUG, "wpa_priv control directory: '%s'", ctrl_dir); | |
1159 | ||
1160 | if (eloop_init()) { | |
1161 | wpa_printf(MSG_ERROR, "Failed to initialize event loop"); | |
1162 | goto out2; | |
1163 | } | |
1164 | ||
1165 | for (i = optind; i < argc; i++) { | |
1166 | wpa_printf(MSG_DEBUG, "Adding driver:interface %s", argv[i]); | |
1167 | iface = wpa_priv_interface_init(&global, ctrl_dir, argv[i]); | |
1168 | if (iface == NULL) | |
1169 | goto out; | |
1170 | iface->next = global.interfaces; | |
1171 | global.interfaces = iface; | |
1172 | } | |
1173 | ||
1174 | if (daemonize && os_daemonize(pid_file) && eloop_sock_requeue()) | |
1175 | goto out; | |
1176 | ||
1177 | eloop_register_signal_terminate(wpa_priv_terminate, NULL); | |
1178 | eloop_run(); | |
1179 | ||
1180 | ret = 0; | |
1181 | ||
1182 | out: | |
1183 | iface = global.interfaces; | |
1184 | while (iface) { | |
1185 | struct wpa_priv_interface *prev = iface; | |
1186 | iface = iface->next; | |
1187 | wpa_priv_interface_deinit(prev); | |
1188 | } | |
1189 | ||
1190 | eloop_destroy(); | |
1191 | ||
1192 | out2: | |
1193 | if (daemonize) | |
1194 | os_daemonize_terminate(pid_file); | |
1195 | os_free(pid_file); | |
1196 | os_program_deinit(); | |
1197 | ||
1198 | return ret; | |
1199 | } |