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Commit | Line | Data |
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6fc6879b JM |
1 | /* |
2 | * WPA Supplicant / privileged helper program | |
96c7c307 | 3 | * Copyright (c) 2007-2009, 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 | #include <sys/un.h> | |
14 | #include <sys/stat.h> | |
15 | ||
16 | #include "common.h" | |
17 | #include "eloop.h" | |
90973fb2 | 18 | #include "common/version.h" |
6fc6879b JM |
19 | #include "drivers/driver.h" |
20 | #include "l2_packet/l2_packet.h" | |
90973fb2 JM |
21 | #include "common/privsep_commands.h" |
22 | #include "common/ieee802_11_defs.h" | |
6fc6879b | 23 | |
128d3c69 | 24 | #define WPA_PRIV_MAX_L2 3 |
6fc6879b JM |
25 | |
26 | struct wpa_priv_interface { | |
27 | struct wpa_priv_interface *next; | |
28 | char *driver_name; | |
29 | char *ifname; | |
30 | char *sock_name; | |
31 | int fd; | |
32 | ||
45e3fc72 RM |
33 | void *ctx; |
34 | ||
8b423edb | 35 | const struct wpa_driver_ops *driver; |
6fc6879b | 36 | void *drv_priv; |
20396ab8 | 37 | void *drv_global_priv; |
6fc6879b | 38 | struct sockaddr_un drv_addr; |
e0641772 | 39 | socklen_t drv_addr_len; |
6fc6879b JM |
40 | int wpas_registered; |
41 | ||
128d3c69 JM |
42 | struct l2_packet_data *l2[WPA_PRIV_MAX_L2]; |
43 | struct sockaddr_un l2_addr[WPA_PRIV_MAX_L2]; | |
e0641772 | 44 | socklen_t l2_addr_len[WPA_PRIV_MAX_L2]; |
128d3c69 JM |
45 | struct wpa_priv_l2 { |
46 | struct wpa_priv_interface *parent; | |
47 | int idx; | |
48 | } l2_ctx[WPA_PRIV_MAX_L2]; | |
6fc6879b JM |
49 | }; |
50 | ||
45e3fc72 RM |
51 | struct wpa_priv_global { |
52 | struct wpa_priv_interface *interfaces; | |
53 | }; | |
54 | ||
6fc6879b JM |
55 | |
56 | static void wpa_priv_cmd_register(struct wpa_priv_interface *iface, | |
e0641772 | 57 | struct sockaddr_un *from, socklen_t fromlen) |
6fc6879b | 58 | { |
128d3c69 JM |
59 | int i; |
60 | ||
6fc6879b JM |
61 | if (iface->drv_priv) { |
62 | wpa_printf(MSG_DEBUG, "Cleaning up forgotten driver instance"); | |
6fc6879b JM |
63 | if (iface->driver->deinit) |
64 | iface->driver->deinit(iface->drv_priv); | |
65 | iface->drv_priv = NULL; | |
20396ab8 JM |
66 | if (iface->drv_global_priv) { |
67 | iface->driver->global_deinit(iface->drv_global_priv); | |
68 | iface->drv_global_priv = NULL; | |
69 | } | |
6fc6879b JM |
70 | iface->wpas_registered = 0; |
71 | } | |
72 | ||
128d3c69 JM |
73 | for (i = 0; i < WPA_PRIV_MAX_L2; i++) { |
74 | if (iface->l2[i]) { | |
75 | wpa_printf(MSG_DEBUG, | |
76 | "Cleaning up forgotten l2_packet instance"); | |
77 | l2_packet_deinit(iface->l2[i]); | |
78 | iface->l2[i] = NULL; | |
79 | } | |
6fc6879b JM |
80 | } |
81 | ||
20396ab8 JM |
82 | if (iface->driver->init2) { |
83 | if (iface->driver->global_init) { | |
45e3fc72 RM |
84 | iface->drv_global_priv = |
85 | iface->driver->global_init(iface->ctx); | |
20396ab8 JM |
86 | if (!iface->drv_global_priv) { |
87 | wpa_printf(MSG_INFO, | |
88 | "Failed to initialize driver global context"); | |
89 | return; | |
90 | } | |
91 | } else { | |
92 | iface->drv_global_priv = NULL; | |
93 | } | |
94 | iface->drv_priv = iface->driver->init2(iface, iface->ifname, | |
95 | iface->drv_global_priv); | |
96 | } else if (iface->driver->init) { | |
97 | iface->drv_priv = iface->driver->init(iface, iface->ifname); | |
98 | } else { | |
6fc6879b | 99 | return; |
20396ab8 | 100 | } |
6fc6879b JM |
101 | if (iface->drv_priv == NULL) { |
102 | wpa_printf(MSG_DEBUG, "Failed to initialize driver wrapper"); | |
103 | return; | |
104 | } | |
105 | ||
106 | wpa_printf(MSG_DEBUG, "Driver wrapper '%s' initialized for interface " | |
107 | "'%s'", iface->driver_name, iface->ifname); | |
108 | ||
e0641772 JM |
109 | os_memcpy(&iface->drv_addr, from, fromlen); |
110 | iface->drv_addr_len = fromlen; | |
6fc6879b JM |
111 | iface->wpas_registered = 1; |
112 | ||
113 | if (iface->driver->set_param && | |
114 | iface->driver->set_param(iface->drv_priv, NULL) < 0) { | |
115 | wpa_printf(MSG_ERROR, "Driver interface rejected param"); | |
116 | } | |
6fc6879b JM |
117 | } |
118 | ||
119 | ||
120 | static void wpa_priv_cmd_unregister(struct wpa_priv_interface *iface, | |
121 | struct sockaddr_un *from) | |
122 | { | |
123 | if (iface->drv_priv) { | |
6fc6879b JM |
124 | if (iface->driver->deinit) |
125 | iface->driver->deinit(iface->drv_priv); | |
126 | iface->drv_priv = NULL; | |
20396ab8 JM |
127 | if (iface->drv_global_priv) { |
128 | iface->driver->global_deinit(iface->drv_global_priv); | |
129 | iface->drv_global_priv = NULL; | |
130 | } | |
6fc6879b JM |
131 | iface->wpas_registered = 0; |
132 | } | |
133 | } | |
134 | ||
135 | ||
6fc6879b | 136 | static void wpa_priv_cmd_scan(struct wpa_priv_interface *iface, |
da818ee5 | 137 | void *buf, size_t len) |
6fc6879b | 138 | { |
3dee3081 | 139 | struct wpa_driver_scan_params params; |
da818ee5 JM |
140 | struct privsep_cmd_scan *scan; |
141 | unsigned int i; | |
865081c3 | 142 | int freqs[PRIVSEP_MAX_SCAN_FREQS + 1]; |
3dee3081 | 143 | |
6fc6879b JM |
144 | if (iface->drv_priv == NULL) |
145 | return; | |
146 | ||
da818ee5 JM |
147 | if (len < sizeof(*scan)) { |
148 | wpa_printf(MSG_DEBUG, "Invalid scan request"); | |
149 | return; | |
150 | } | |
151 | ||
152 | scan = buf; | |
153 | ||
3dee3081 | 154 | os_memset(¶ms, 0, sizeof(params)); |
da818ee5 JM |
155 | if (scan->num_ssids > WPAS_MAX_SCAN_SSIDS) { |
156 | wpa_printf(MSG_DEBUG, "Invalid scan request (num_ssids)"); | |
157 | return; | |
158 | } | |
159 | params.num_ssids = scan->num_ssids; | |
160 | for (i = 0; i < scan->num_ssids; i++) { | |
161 | params.ssids[i].ssid = scan->ssids[i]; | |
162 | params.ssids[i].ssid_len = scan->ssid_lens[i]; | |
3dee3081 JM |
163 | } |
164 | ||
865081c3 JM |
165 | if (scan->num_freqs > PRIVSEP_MAX_SCAN_FREQS) { |
166 | wpa_printf(MSG_DEBUG, "Invalid scan request (num_freqs)"); | |
167 | return; | |
168 | } | |
169 | if (scan->num_freqs) { | |
170 | for (i = 0; i < scan->num_freqs; i++) | |
171 | freqs[i] = scan->freqs[i]; | |
172 | freqs[i] = 0; | |
173 | params.freqs = freqs; | |
174 | } | |
175 | ||
3dee3081 JM |
176 | if (iface->driver->scan2) |
177 | iface->driver->scan2(iface->drv_priv, ¶ms); | |
6fc6879b JM |
178 | } |
179 | ||
180 | ||
181 | static void wpa_priv_get_scan_results2(struct wpa_priv_interface *iface, | |
e0641772 JM |
182 | struct sockaddr_un *from, |
183 | socklen_t fromlen) | |
6fc6879b JM |
184 | { |
185 | struct wpa_scan_results *res; | |
186 | u8 *buf = NULL, *pos, *end; | |
187 | int val; | |
188 | size_t i; | |
189 | ||
190 | res = iface->driver->get_scan_results2(iface->drv_priv); | |
191 | if (res == NULL) | |
192 | goto fail; | |
193 | ||
194 | buf = os_malloc(60000); | |
195 | if (buf == NULL) | |
196 | goto fail; | |
197 | pos = buf; | |
198 | end = buf + 60000; | |
199 | val = res->num; | |
200 | os_memcpy(pos, &val, sizeof(int)); | |
201 | pos += sizeof(int); | |
202 | ||
203 | for (i = 0; i < res->num; i++) { | |
204 | struct wpa_scan_res *r = res->res[i]; | |
d3c43e58 | 205 | val = sizeof(*r) + r->ie_len + r->beacon_ie_len; |
6fc6879b JM |
206 | if (end - pos < (int) sizeof(int) + val) |
207 | break; | |
208 | os_memcpy(pos, &val, sizeof(int)); | |
209 | pos += sizeof(int); | |
210 | os_memcpy(pos, r, val); | |
211 | pos += val; | |
212 | } | |
213 | ||
e0641772 | 214 | sendto(iface->fd, buf, pos - buf, 0, (struct sockaddr *) from, fromlen); |
6fc6879b JM |
215 | |
216 | os_free(buf); | |
4e2225a5 | 217 | wpa_scan_results_free(res); |
6fc6879b JM |
218 | return; |
219 | ||
220 | fail: | |
221 | os_free(buf); | |
4e2225a5 | 222 | wpa_scan_results_free(res); |
e0641772 | 223 | sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, fromlen); |
6fc6879b JM |
224 | } |
225 | ||
226 | ||
6fc6879b | 227 | static void wpa_priv_cmd_get_scan_results(struct wpa_priv_interface *iface, |
e0641772 JM |
228 | struct sockaddr_un *from, |
229 | socklen_t fromlen) | |
6fc6879b JM |
230 | { |
231 | if (iface->drv_priv == NULL) | |
232 | return; | |
233 | ||
234 | if (iface->driver->get_scan_results2) | |
e0641772 | 235 | wpa_priv_get_scan_results2(iface, from, fromlen); |
6fc6879b | 236 | else |
e0641772 | 237 | sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, fromlen); |
6fc6879b JM |
238 | } |
239 | ||
240 | ||
6ebe816b JM |
241 | static void wpa_priv_cmd_authenticate(struct wpa_priv_interface *iface, |
242 | void *buf, size_t len) | |
243 | { | |
244 | struct wpa_driver_auth_params params; | |
245 | struct privsep_cmd_authenticate *auth; | |
246 | int res, i; | |
247 | ||
248 | if (iface->drv_priv == NULL || iface->driver->authenticate == NULL) | |
249 | return; | |
250 | ||
251 | if (len < sizeof(*auth)) { | |
252 | wpa_printf(MSG_DEBUG, "Invalid authentication request"); | |
253 | return; | |
254 | } | |
255 | ||
256 | auth = buf; | |
ce16c489 | 257 | if (sizeof(*auth) + auth->ie_len + auth->auth_data_len > len) { |
6ebe816b JM |
258 | wpa_printf(MSG_DEBUG, "Authentication request overflow"); |
259 | return; | |
260 | } | |
261 | ||
262 | os_memset(¶ms, 0, sizeof(params)); | |
263 | params.freq = auth->freq; | |
264 | params.bssid = auth->bssid; | |
265 | params.ssid = auth->ssid; | |
266 | if (auth->ssid_len > SSID_MAX_LEN) | |
267 | return; | |
268 | params.ssid_len = auth->ssid_len; | |
269 | params.auth_alg = auth->auth_alg; | |
270 | for (i = 0; i < 4; i++) { | |
271 | if (auth->wep_key_len[i]) { | |
272 | params.wep_key[i] = auth->wep_key[i]; | |
273 | params.wep_key_len[i] = auth->wep_key_len[i]; | |
274 | } | |
275 | } | |
276 | params.wep_tx_keyidx = auth->wep_tx_keyidx; | |
277 | params.local_state_change = auth->local_state_change; | |
278 | params.p2p = auth->p2p; | |
279 | if (auth->ie_len) { | |
280 | params.ie = (u8 *) (auth + 1); | |
281 | params.ie_len = auth->ie_len; | |
282 | } | |
ce16c489 JM |
283 | if (auth->auth_data_len) { |
284 | params.auth_data = ((u8 *) (auth + 1)) + auth->ie_len; | |
285 | params.auth_data_len = auth->auth_data_len; | |
6ebe816b JM |
286 | } |
287 | ||
288 | res = iface->driver->authenticate(iface->drv_priv, ¶ms); | |
289 | wpa_printf(MSG_DEBUG, "drv->authenticate: res=%d", res); | |
290 | } | |
291 | ||
292 | ||
6fc6879b JM |
293 | static void wpa_priv_cmd_associate(struct wpa_priv_interface *iface, |
294 | void *buf, size_t len) | |
295 | { | |
296 | struct wpa_driver_associate_params params; | |
297 | struct privsep_cmd_associate *assoc; | |
298 | u8 *bssid; | |
299 | int res; | |
300 | ||
301 | if (iface->drv_priv == NULL || iface->driver->associate == NULL) | |
302 | return; | |
303 | ||
304 | if (len < sizeof(*assoc)) { | |
305 | wpa_printf(MSG_DEBUG, "Invalid association request"); | |
306 | return; | |
307 | } | |
308 | ||
309 | assoc = buf; | |
310 | if (sizeof(*assoc) + assoc->wpa_ie_len > len) { | |
311 | wpa_printf(MSG_DEBUG, "Association request overflow"); | |
312 | return; | |
313 | } | |
314 | ||
315 | os_memset(¶ms, 0, sizeof(params)); | |
316 | bssid = assoc->bssid; | |
317 | if (bssid[0] | bssid[1] | bssid[2] | bssid[3] | bssid[4] | bssid[5]) | |
318 | params.bssid = bssid; | |
319 | params.ssid = assoc->ssid; | |
d9d1b952 | 320 | if (assoc->ssid_len > SSID_MAX_LEN) |
6fc6879b JM |
321 | return; |
322 | params.ssid_len = assoc->ssid_len; | |
36f0cf37 JM |
323 | params.freq.mode = assoc->hwmode; |
324 | params.freq.freq = assoc->freq; | |
325 | params.freq.channel = assoc->channel; | |
6fc6879b JM |
326 | if (assoc->wpa_ie_len) { |
327 | params.wpa_ie = (u8 *) (assoc + 1); | |
328 | params.wpa_ie_len = assoc->wpa_ie_len; | |
329 | } | |
330 | params.pairwise_suite = assoc->pairwise_suite; | |
331 | params.group_suite = assoc->group_suite; | |
332 | params.key_mgmt_suite = assoc->key_mgmt_suite; | |
333 | params.auth_alg = assoc->auth_alg; | |
334 | params.mode = assoc->mode; | |
335 | ||
336 | res = iface->driver->associate(iface->drv_priv, ¶ms); | |
337 | wpa_printf(MSG_DEBUG, "drv->associate: res=%d", res); | |
338 | } | |
339 | ||
340 | ||
341 | static void wpa_priv_cmd_get_bssid(struct wpa_priv_interface *iface, | |
e0641772 | 342 | struct sockaddr_un *from, socklen_t fromlen) |
6fc6879b JM |
343 | { |
344 | u8 bssid[ETH_ALEN]; | |
345 | ||
346 | if (iface->drv_priv == NULL) | |
347 | goto fail; | |
348 | ||
349 | if (iface->driver->get_bssid == NULL || | |
350 | iface->driver->get_bssid(iface->drv_priv, bssid) < 0) | |
351 | goto fail; | |
352 | ||
353 | sendto(iface->fd, bssid, ETH_ALEN, 0, (struct sockaddr *) from, | |
e0641772 | 354 | fromlen); |
6fc6879b JM |
355 | return; |
356 | ||
357 | fail: | |
e0641772 | 358 | sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, fromlen); |
6fc6879b JM |
359 | } |
360 | ||
361 | ||
362 | static void wpa_priv_cmd_get_ssid(struct wpa_priv_interface *iface, | |
e0641772 | 363 | struct sockaddr_un *from, socklen_t fromlen) |
6fc6879b | 364 | { |
d9d1b952 | 365 | u8 ssid[sizeof(int) + SSID_MAX_LEN]; |
6fc6879b JM |
366 | int res; |
367 | ||
368 | if (iface->drv_priv == NULL) | |
369 | goto fail; | |
370 | ||
371 | if (iface->driver->get_ssid == NULL) | |
372 | goto fail; | |
373 | ||
ce0f899a | 374 | os_memset(ssid, 0, sizeof(ssid)); |
6fc6879b | 375 | res = iface->driver->get_ssid(iface->drv_priv, &ssid[sizeof(int)]); |
d9d1b952 | 376 | if (res < 0 || res > SSID_MAX_LEN) |
6fc6879b JM |
377 | goto fail; |
378 | os_memcpy(ssid, &res, sizeof(int)); | |
379 | ||
380 | sendto(iface->fd, ssid, sizeof(ssid), 0, (struct sockaddr *) from, | |
e0641772 | 381 | fromlen); |
6fc6879b JM |
382 | return; |
383 | ||
384 | fail: | |
e0641772 | 385 | sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, fromlen); |
6fc6879b JM |
386 | } |
387 | ||
388 | ||
389 | static void wpa_priv_cmd_set_key(struct wpa_priv_interface *iface, | |
390 | void *buf, size_t len) | |
391 | { | |
392 | struct privsep_cmd_set_key *params; | |
393 | int res; | |
394 | ||
395 | if (iface->drv_priv == NULL || iface->driver->set_key == NULL) | |
396 | return; | |
397 | ||
398 | if (len != sizeof(*params)) { | |
399 | wpa_printf(MSG_DEBUG, "Invalid set_key request"); | |
400 | return; | |
401 | } | |
402 | ||
403 | params = buf; | |
404 | ||
3dee3081 JM |
405 | res = iface->driver->set_key(iface->ifname, iface->drv_priv, |
406 | params->alg, | |
6fc6879b JM |
407 | params->addr, params->key_idx, |
408 | params->set_tx, | |
409 | params->seq_len ? params->seq : NULL, | |
410 | params->seq_len, | |
411 | params->key_len ? params->key : NULL, | |
412 | params->key_len); | |
413 | wpa_printf(MSG_DEBUG, "drv->set_key: res=%d", res); | |
414 | } | |
415 | ||
416 | ||
417 | static void wpa_priv_cmd_get_capa(struct wpa_priv_interface *iface, | |
e0641772 | 418 | struct sockaddr_un *from, socklen_t fromlen) |
6fc6879b JM |
419 | { |
420 | struct wpa_driver_capa capa; | |
421 | ||
422 | if (iface->drv_priv == NULL) | |
423 | goto fail; | |
424 | ||
425 | if (iface->driver->get_capa == NULL || | |
426 | iface->driver->get_capa(iface->drv_priv, &capa) < 0) | |
427 | goto fail; | |
428 | ||
c968f2d5 JM |
429 | /* For now, no support for passing extended_capa pointers */ |
430 | capa.extended_capa = NULL; | |
431 | capa.extended_capa_mask = NULL; | |
432 | capa.extended_capa_len = 0; | |
6fc6879b | 433 | sendto(iface->fd, &capa, sizeof(capa), 0, (struct sockaddr *) from, |
e0641772 | 434 | fromlen); |
6fc6879b JM |
435 | return; |
436 | ||
437 | fail: | |
e0641772 | 438 | sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, fromlen); |
6fc6879b JM |
439 | } |
440 | ||
441 | ||
442 | static void wpa_priv_l2_rx(void *ctx, const u8 *src_addr, const u8 *buf, | |
443 | size_t len) | |
444 | { | |
128d3c69 JM |
445 | struct wpa_priv_l2 *l2_ctx = ctx; |
446 | struct wpa_priv_interface *iface = l2_ctx->parent; | |
6fc6879b JM |
447 | struct msghdr msg; |
448 | struct iovec io[2]; | |
449 | ||
450 | io[0].iov_base = (u8 *) src_addr; | |
451 | io[0].iov_len = ETH_ALEN; | |
452 | io[1].iov_base = (u8 *) buf; | |
453 | io[1].iov_len = len; | |
454 | ||
455 | os_memset(&msg, 0, sizeof(msg)); | |
456 | msg.msg_iov = io; | |
457 | msg.msg_iovlen = 2; | |
128d3c69 | 458 | msg.msg_name = &iface->l2_addr[l2_ctx->idx]; |
e0641772 | 459 | msg.msg_namelen = iface->l2_addr_len[l2_ctx->idx]; |
6fc6879b JM |
460 | |
461 | if (sendmsg(iface->fd, &msg, 0) < 0) { | |
a193231d | 462 | wpa_printf(MSG_ERROR, "sendmsg(l2 rx): %s", strerror(errno)); |
6fc6879b JM |
463 | } |
464 | } | |
465 | ||
466 | ||
128d3c69 JM |
467 | static int wpa_priv_allowed_l2_proto(u16 proto) |
468 | { | |
469 | return proto == ETH_P_EAPOL || proto == ETH_P_RSN_PREAUTH || | |
470 | proto == ETH_P_80211_ENCAP; | |
471 | } | |
472 | ||
473 | ||
6fc6879b JM |
474 | static void wpa_priv_cmd_l2_register(struct wpa_priv_interface *iface, |
475 | struct sockaddr_un *from, | |
e0641772 | 476 | socklen_t fromlen, |
6fc6879b JM |
477 | void *buf, size_t len) |
478 | { | |
479 | int *reg_cmd = buf; | |
480 | u8 own_addr[ETH_ALEN]; | |
481 | int res; | |
482 | u16 proto; | |
128d3c69 | 483 | int idx; |
6fc6879b JM |
484 | |
485 | if (len != 2 * sizeof(int)) { | |
486 | wpa_printf(MSG_DEBUG, "Invalid l2_register length %lu", | |
487 | (unsigned long) len); | |
488 | return; | |
489 | } | |
490 | ||
491 | proto = reg_cmd[0]; | |
128d3c69 | 492 | if (!wpa_priv_allowed_l2_proto(proto)) { |
6fc6879b JM |
493 | wpa_printf(MSG_DEBUG, "Refused l2_packet connection for " |
494 | "ethertype 0x%x", proto); | |
495 | return; | |
496 | } | |
497 | ||
128d3c69 JM |
498 | for (idx = 0; idx < WPA_PRIV_MAX_L2; idx++) { |
499 | if (!iface->l2[idx]) | |
500 | break; | |
501 | } | |
502 | if (idx == WPA_PRIV_MAX_L2) { | |
503 | wpa_printf(MSG_DEBUG, "No free l2_packet connection found"); | |
504 | return; | |
6fc6879b JM |
505 | } |
506 | ||
e0641772 JM |
507 | os_memcpy(&iface->l2_addr[idx], from, fromlen); |
508 | iface->l2_addr_len[idx] = fromlen; | |
6fc6879b | 509 | |
128d3c69 JM |
510 | iface->l2_ctx[idx].idx = idx; |
511 | iface->l2_ctx[idx].parent = iface; | |
512 | iface->l2[idx] = l2_packet_init(iface->ifname, NULL, proto, | |
513 | wpa_priv_l2_rx, &iface->l2_ctx[idx], | |
514 | reg_cmd[1]); | |
515 | if (!iface->l2[idx]) { | |
6fc6879b JM |
516 | wpa_printf(MSG_DEBUG, "Failed to initialize l2_packet " |
517 | "instance for protocol %d", proto); | |
518 | return; | |
519 | } | |
520 | ||
128d3c69 | 521 | if (l2_packet_get_own_addr(iface->l2[idx], own_addr) < 0) { |
6fc6879b JM |
522 | wpa_printf(MSG_DEBUG, "Failed to get own address from " |
523 | "l2_packet"); | |
128d3c69 JM |
524 | l2_packet_deinit(iface->l2[idx]); |
525 | iface->l2[idx] = NULL; | |
6fc6879b JM |
526 | return; |
527 | } | |
528 | ||
529 | res = sendto(iface->fd, own_addr, ETH_ALEN, 0, | |
e0641772 | 530 | (struct sockaddr *) from, fromlen); |
128d3c69 | 531 | wpa_printf(MSG_DEBUG, "L2 registration[idx=%d]: res=%d", idx, res); |
6fc6879b JM |
532 | } |
533 | ||
534 | ||
535 | static void wpa_priv_cmd_l2_unregister(struct wpa_priv_interface *iface, | |
e0641772 JM |
536 | struct sockaddr_un *from, |
537 | socklen_t fromlen) | |
6fc6879b | 538 | { |
128d3c69 JM |
539 | int idx; |
540 | ||
541 | for (idx = 0; idx < WPA_PRIV_MAX_L2; idx++) { | |
e0641772 JM |
542 | if (iface->l2_addr_len[idx] == fromlen && |
543 | os_memcmp(&iface->l2_addr[idx], from, fromlen) == 0) | |
128d3c69 JM |
544 | break; |
545 | } | |
546 | if (idx == WPA_PRIV_MAX_L2) { | |
547 | wpa_printf(MSG_DEBUG, | |
548 | "No registered l2_packet socket found for unregister request"); | |
549 | return; | |
550 | } | |
551 | ||
552 | if (iface->l2[idx]) { | |
553 | l2_packet_deinit(iface->l2[idx]); | |
554 | iface->l2[idx] = NULL; | |
6fc6879b JM |
555 | } |
556 | } | |
557 | ||
558 | ||
559 | static void wpa_priv_cmd_l2_notify_auth_start(struct wpa_priv_interface *iface, | |
560 | struct sockaddr_un *from) | |
561 | { | |
128d3c69 JM |
562 | int idx; |
563 | ||
564 | for (idx = 0; idx < WPA_PRIV_MAX_L2; idx++) { | |
565 | if (iface->l2[idx]) | |
566 | l2_packet_notify_auth_start(iface->l2[idx]); | |
567 | } | |
6fc6879b JM |
568 | } |
569 | ||
570 | ||
571 | static void wpa_priv_cmd_l2_send(struct wpa_priv_interface *iface, | |
e0641772 | 572 | struct sockaddr_un *from, socklen_t fromlen, |
6fc6879b JM |
573 | void *buf, size_t len) |
574 | { | |
575 | u8 *dst_addr; | |
576 | u16 proto; | |
577 | int res; | |
128d3c69 | 578 | int idx; |
6fc6879b | 579 | |
128d3c69 | 580 | for (idx = 0; idx < WPA_PRIV_MAX_L2; idx++) { |
e0641772 JM |
581 | if (iface->l2_addr_len[idx] == fromlen && |
582 | os_memcmp(&iface->l2_addr[idx], from, fromlen) == 0) | |
128d3c69 JM |
583 | break; |
584 | } | |
585 | if (idx == WPA_PRIV_MAX_L2) { | |
586 | wpa_printf(MSG_DEBUG, | |
587 | "No registered l2_packet socket found for send request"); | |
588 | return; | |
589 | } | |
590 | ||
591 | if (iface->l2[idx] == NULL) | |
6fc6879b JM |
592 | return; |
593 | ||
594 | if (len < ETH_ALEN + 2) { | |
595 | wpa_printf(MSG_DEBUG, "Too short L2 send packet (len=%lu)", | |
596 | (unsigned long) len); | |
597 | return; | |
598 | } | |
599 | ||
600 | dst_addr = buf; | |
601 | os_memcpy(&proto, buf + ETH_ALEN, 2); | |
602 | ||
128d3c69 | 603 | if (!wpa_priv_allowed_l2_proto(proto)) { |
6fc6879b JM |
604 | wpa_printf(MSG_DEBUG, "Refused l2_packet send for ethertype " |
605 | "0x%x", proto); | |
606 | return; | |
607 | } | |
608 | ||
128d3c69 JM |
609 | res = l2_packet_send(iface->l2[idx], dst_addr, proto, |
610 | buf + ETH_ALEN + 2, len - ETH_ALEN - 2); | |
611 | wpa_printf(MSG_DEBUG, "L2 send[idx=%d]: res=%d", idx, res); | |
6fc6879b JM |
612 | } |
613 | ||
614 | ||
6301cc5d DM |
615 | static void wpa_priv_cmd_set_country(struct wpa_priv_interface *iface, |
616 | char *buf) | |
617 | { | |
618 | if (iface->drv_priv == NULL || iface->driver->set_country == NULL || | |
619 | *buf == '\0') | |
620 | return; | |
621 | ||
622 | iface->driver->set_country(iface->drv_priv, buf); | |
623 | } | |
624 | ||
625 | ||
6fc6879b JM |
626 | static void wpa_priv_receive(int sock, void *eloop_ctx, void *sock_ctx) |
627 | { | |
628 | struct wpa_priv_interface *iface = eloop_ctx; | |
6301cc5d | 629 | char buf[2000], *pos; |
6fc6879b JM |
630 | void *cmd_buf; |
631 | size_t cmd_len; | |
632 | int res, cmd; | |
633 | struct sockaddr_un from; | |
634 | socklen_t fromlen = sizeof(from); | |
635 | ||
636 | res = recvfrom(sock, buf, sizeof(buf), 0, (struct sockaddr *) &from, | |
637 | &fromlen); | |
638 | if (res < 0) { | |
a193231d | 639 | wpa_printf(MSG_ERROR, "recvfrom: %s", strerror(errno)); |
6fc6879b JM |
640 | return; |
641 | } | |
642 | ||
643 | if (res < (int) sizeof(int)) { | |
644 | wpa_printf(MSG_DEBUG, "Too short command (len=%d)", res); | |
645 | return; | |
646 | } | |
647 | ||
648 | os_memcpy(&cmd, buf, sizeof(int)); | |
649 | wpa_printf(MSG_DEBUG, "Command %d for interface %s", | |
650 | cmd, iface->ifname); | |
651 | cmd_buf = &buf[sizeof(int)]; | |
652 | cmd_len = res - sizeof(int); | |
653 | ||
654 | switch (cmd) { | |
655 | case PRIVSEP_CMD_REGISTER: | |
e0641772 | 656 | wpa_priv_cmd_register(iface, &from, fromlen); |
6fc6879b JM |
657 | break; |
658 | case PRIVSEP_CMD_UNREGISTER: | |
659 | wpa_priv_cmd_unregister(iface, &from); | |
660 | break; | |
6fc6879b JM |
661 | case PRIVSEP_CMD_SCAN: |
662 | wpa_priv_cmd_scan(iface, cmd_buf, cmd_len); | |
663 | break; | |
664 | case PRIVSEP_CMD_GET_SCAN_RESULTS: | |
e0641772 | 665 | wpa_priv_cmd_get_scan_results(iface, &from, fromlen); |
6fc6879b JM |
666 | break; |
667 | case PRIVSEP_CMD_ASSOCIATE: | |
668 | wpa_priv_cmd_associate(iface, cmd_buf, cmd_len); | |
669 | break; | |
670 | case PRIVSEP_CMD_GET_BSSID: | |
e0641772 | 671 | wpa_priv_cmd_get_bssid(iface, &from, fromlen); |
6fc6879b JM |
672 | break; |
673 | case PRIVSEP_CMD_GET_SSID: | |
e0641772 | 674 | wpa_priv_cmd_get_ssid(iface, &from, fromlen); |
6fc6879b JM |
675 | break; |
676 | case PRIVSEP_CMD_SET_KEY: | |
677 | wpa_priv_cmd_set_key(iface, cmd_buf, cmd_len); | |
678 | break; | |
679 | case PRIVSEP_CMD_GET_CAPA: | |
e0641772 | 680 | wpa_priv_cmd_get_capa(iface, &from, fromlen); |
6fc6879b JM |
681 | break; |
682 | case PRIVSEP_CMD_L2_REGISTER: | |
e0641772 JM |
683 | wpa_priv_cmd_l2_register(iface, &from, fromlen, |
684 | cmd_buf, cmd_len); | |
6fc6879b JM |
685 | break; |
686 | case PRIVSEP_CMD_L2_UNREGISTER: | |
e0641772 | 687 | wpa_priv_cmd_l2_unregister(iface, &from, fromlen); |
6fc6879b JM |
688 | break; |
689 | case PRIVSEP_CMD_L2_NOTIFY_AUTH_START: | |
690 | wpa_priv_cmd_l2_notify_auth_start(iface, &from); | |
691 | break; | |
692 | case PRIVSEP_CMD_L2_SEND: | |
e0641772 | 693 | wpa_priv_cmd_l2_send(iface, &from, fromlen, cmd_buf, cmd_len); |
6fc6879b | 694 | break; |
6301cc5d DM |
695 | case PRIVSEP_CMD_SET_COUNTRY: |
696 | pos = cmd_buf; | |
697 | if (pos + cmd_len >= buf + sizeof(buf)) | |
698 | break; | |
699 | pos[cmd_len] = '\0'; | |
700 | wpa_priv_cmd_set_country(iface, pos); | |
701 | break; | |
6ebe816b JM |
702 | case PRIVSEP_CMD_AUTHENTICATE: |
703 | wpa_priv_cmd_authenticate(iface, cmd_buf, cmd_len); | |
704 | break; | |
6fc6879b JM |
705 | } |
706 | } | |
707 | ||
708 | ||
709 | static void wpa_priv_interface_deinit(struct wpa_priv_interface *iface) | |
710 | { | |
128d3c69 JM |
711 | int i; |
712 | ||
6d97561d JM |
713 | if (iface->drv_priv) { |
714 | if (iface->driver->deinit) | |
715 | iface->driver->deinit(iface->drv_priv); | |
716 | if (iface->drv_global_priv) | |
717 | iface->driver->global_deinit(iface->drv_global_priv); | |
718 | } | |
6fc6879b JM |
719 | |
720 | if (iface->fd >= 0) { | |
721 | eloop_unregister_read_sock(iface->fd); | |
722 | close(iface->fd); | |
723 | unlink(iface->sock_name); | |
724 | } | |
725 | ||
128d3c69 JM |
726 | for (i = 0; i < WPA_PRIV_MAX_L2; i++) { |
727 | if (iface->l2[i]) | |
728 | l2_packet_deinit(iface->l2[i]); | |
729 | } | |
6fc6879b JM |
730 | |
731 | os_free(iface->ifname); | |
732 | os_free(iface->driver_name); | |
733 | os_free(iface->sock_name); | |
734 | os_free(iface); | |
735 | } | |
736 | ||
737 | ||
6fc6879b | 738 | static struct wpa_priv_interface * |
45e3fc72 | 739 | wpa_priv_interface_init(void *ctx, const char *dir, const char *params) |
6fc6879b JM |
740 | { |
741 | struct wpa_priv_interface *iface; | |
742 | char *pos; | |
743 | size_t len; | |
744 | struct sockaddr_un addr; | |
745 | int i; | |
746 | ||
747 | pos = os_strchr(params, ':'); | |
748 | if (pos == NULL) | |
749 | return NULL; | |
750 | ||
751 | iface = os_zalloc(sizeof(*iface)); | |
752 | if (iface == NULL) | |
753 | return NULL; | |
754 | iface->fd = -1; | |
45e3fc72 | 755 | iface->ctx = ctx; |
6fc6879b JM |
756 | |
757 | len = pos - params; | |
5e24dc8a | 758 | iface->driver_name = dup_binstr(params, len); |
6fc6879b JM |
759 | if (iface->driver_name == NULL) { |
760 | wpa_priv_interface_deinit(iface); | |
761 | return NULL; | |
762 | } | |
6fc6879b | 763 | |
c5121837 | 764 | for (i = 0; wpa_drivers[i]; i++) { |
6fc6879b | 765 | if (os_strcmp(iface->driver_name, |
c5121837 JM |
766 | wpa_drivers[i]->name) == 0) { |
767 | iface->driver = wpa_drivers[i]; | |
6fc6879b JM |
768 | break; |
769 | } | |
770 | } | |
771 | if (iface->driver == NULL) { | |
772 | wpa_printf(MSG_ERROR, "Unsupported driver '%s'", | |
773 | iface->driver_name); | |
774 | wpa_priv_interface_deinit(iface); | |
775 | return NULL; | |
776 | } | |
777 | ||
778 | pos++; | |
779 | iface->ifname = os_strdup(pos); | |
780 | if (iface->ifname == NULL) { | |
781 | wpa_priv_interface_deinit(iface); | |
782 | return NULL; | |
783 | } | |
784 | ||
785 | len = os_strlen(dir) + 1 + os_strlen(iface->ifname); | |
786 | iface->sock_name = os_malloc(len + 1); | |
787 | if (iface->sock_name == NULL) { | |
788 | wpa_priv_interface_deinit(iface); | |
789 | return NULL; | |
790 | } | |
791 | ||
792 | os_snprintf(iface->sock_name, len + 1, "%s/%s", dir, iface->ifname); | |
793 | if (os_strlen(iface->sock_name) >= sizeof(addr.sun_path)) { | |
794 | wpa_priv_interface_deinit(iface); | |
795 | return NULL; | |
796 | } | |
797 | ||
798 | iface->fd = socket(PF_UNIX, SOCK_DGRAM, 0); | |
799 | if (iface->fd < 0) { | |
a193231d | 800 | wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno)); |
6fc6879b JM |
801 | wpa_priv_interface_deinit(iface); |
802 | return NULL; | |
803 | } | |
804 | ||
805 | os_memset(&addr, 0, sizeof(addr)); | |
806 | addr.sun_family = AF_UNIX; | |
807 | os_strlcpy(addr.sun_path, iface->sock_name, sizeof(addr.sun_path)); | |
808 | ||
809 | if (bind(iface->fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) { | |
810 | wpa_printf(MSG_DEBUG, "bind(PF_UNIX) failed: %s", | |
811 | strerror(errno)); | |
812 | if (connect(iface->fd, (struct sockaddr *) &addr, | |
813 | sizeof(addr)) < 0) { | |
814 | wpa_printf(MSG_DEBUG, "Socket exists, but does not " | |
815 | "allow connections - assuming it was " | |
816 | "leftover from forced program termination"); | |
817 | if (unlink(iface->sock_name) < 0) { | |
a193231d JM |
818 | wpa_printf(MSG_ERROR, |
819 | "Could not unlink existing ctrl_iface socket '%s': %s", | |
820 | iface->sock_name, strerror(errno)); | |
6fc6879b JM |
821 | goto fail; |
822 | } | |
823 | if (bind(iface->fd, (struct sockaddr *) &addr, | |
824 | sizeof(addr)) < 0) { | |
a193231d JM |
825 | wpa_printf(MSG_ERROR, |
826 | "wpa-priv-iface-init: bind(PF_UNIX): %s", | |
827 | strerror(errno)); | |
6fc6879b JM |
828 | goto fail; |
829 | } | |
830 | wpa_printf(MSG_DEBUG, "Successfully replaced leftover " | |
831 | "socket '%s'", iface->sock_name); | |
832 | } else { | |
833 | wpa_printf(MSG_INFO, "Socket exists and seems to be " | |
834 | "in use - cannot override it"); | |
835 | wpa_printf(MSG_INFO, "Delete '%s' manually if it is " | |
836 | "not used anymore", iface->sock_name); | |
837 | goto fail; | |
838 | } | |
839 | } | |
840 | ||
841 | if (chmod(iface->sock_name, S_IRWXU | S_IRWXG | S_IRWXO) < 0) { | |
a193231d | 842 | wpa_printf(MSG_ERROR, "chmod: %s", strerror(errno)); |
6fc6879b JM |
843 | goto fail; |
844 | } | |
845 | ||
846 | eloop_register_read_sock(iface->fd, wpa_priv_receive, iface, NULL); | |
847 | ||
848 | return iface; | |
849 | ||
850 | fail: | |
851 | wpa_priv_interface_deinit(iface); | |
852 | return NULL; | |
853 | } | |
854 | ||
855 | ||
856 | static int wpa_priv_send_event(struct wpa_priv_interface *iface, int event, | |
857 | const void *data, size_t data_len) | |
858 | { | |
859 | struct msghdr msg; | |
860 | struct iovec io[2]; | |
861 | ||
862 | io[0].iov_base = &event; | |
863 | io[0].iov_len = sizeof(event); | |
864 | io[1].iov_base = (u8 *) data; | |
865 | io[1].iov_len = data_len; | |
866 | ||
867 | os_memset(&msg, 0, sizeof(msg)); | |
868 | msg.msg_iov = io; | |
869 | msg.msg_iovlen = data ? 2 : 1; | |
870 | msg.msg_name = &iface->drv_addr; | |
e0641772 | 871 | msg.msg_namelen = iface->drv_addr_len; |
6fc6879b JM |
872 | |
873 | if (sendmsg(iface->fd, &msg, 0) < 0) { | |
a193231d JM |
874 | wpa_printf(MSG_ERROR, "sendmsg(wpas_socket): %s", |
875 | strerror(errno)); | |
6fc6879b JM |
876 | return -1; |
877 | } | |
878 | ||
879 | return 0; | |
880 | } | |
881 | ||
882 | ||
6ebe816b JM |
883 | static void wpa_priv_send_auth(struct wpa_priv_interface *iface, |
884 | union wpa_event_data *data) | |
885 | { | |
886 | size_t buflen = sizeof(struct privsep_event_auth) + data->auth.ies_len; | |
887 | struct privsep_event_auth *auth; | |
888 | u8 *buf, *pos; | |
889 | ||
ce0f899a | 890 | buf = os_zalloc(buflen); |
6ebe816b JM |
891 | if (buf == NULL) |
892 | return; | |
893 | ||
894 | auth = (struct privsep_event_auth *) buf; | |
895 | pos = (u8 *) (auth + 1); | |
896 | ||
897 | os_memcpy(auth->peer, data->auth.peer, ETH_ALEN); | |
898 | os_memcpy(auth->bssid, data->auth.bssid, ETH_ALEN); | |
899 | auth->auth_type = data->auth.auth_type; | |
900 | auth->auth_transaction = data->auth.auth_transaction; | |
901 | auth->status_code = data->auth.status_code; | |
902 | if (data->auth.ies) { | |
903 | os_memcpy(pos, data->auth.ies, data->auth.ies_len); | |
904 | auth->ies_len = data->auth.ies_len; | |
905 | } | |
906 | ||
907 | wpa_priv_send_event(iface, PRIVSEP_EVENT_AUTH, buf, buflen); | |
908 | ||
909 | os_free(buf); | |
910 | } | |
911 | ||
912 | ||
6fc6879b JM |
913 | static void wpa_priv_send_assoc(struct wpa_priv_interface *iface, int event, |
914 | union wpa_event_data *data) | |
915 | { | |
916 | size_t buflen = 3 * sizeof(int); | |
917 | u8 *buf, *pos; | |
918 | int len; | |
919 | ||
920 | if (data) { | |
921 | buflen += data->assoc_info.req_ies_len + | |
922 | data->assoc_info.resp_ies_len + | |
923 | data->assoc_info.beacon_ies_len; | |
924 | } | |
925 | ||
926 | buf = os_malloc(buflen); | |
927 | if (buf == NULL) | |
928 | return; | |
929 | ||
930 | pos = buf; | |
931 | ||
932 | if (data && data->assoc_info.req_ies) { | |
933 | len = data->assoc_info.req_ies_len; | |
934 | os_memcpy(pos, &len, sizeof(int)); | |
935 | pos += sizeof(int); | |
936 | os_memcpy(pos, data->assoc_info.req_ies, len); | |
937 | pos += len; | |
938 | } else { | |
939 | len = 0; | |
940 | os_memcpy(pos, &len, sizeof(int)); | |
941 | pos += sizeof(int); | |
942 | } | |
943 | ||
944 | if (data && data->assoc_info.resp_ies) { | |
945 | len = data->assoc_info.resp_ies_len; | |
946 | os_memcpy(pos, &len, sizeof(int)); | |
947 | pos += sizeof(int); | |
948 | os_memcpy(pos, data->assoc_info.resp_ies, len); | |
949 | pos += len; | |
950 | } else { | |
951 | len = 0; | |
952 | os_memcpy(pos, &len, sizeof(int)); | |
953 | pos += sizeof(int); | |
954 | } | |
955 | ||
956 | if (data && data->assoc_info.beacon_ies) { | |
957 | len = data->assoc_info.beacon_ies_len; | |
958 | os_memcpy(pos, &len, sizeof(int)); | |
959 | pos += sizeof(int); | |
960 | os_memcpy(pos, data->assoc_info.beacon_ies, len); | |
961 | pos += len; | |
962 | } else { | |
963 | len = 0; | |
964 | os_memcpy(pos, &len, sizeof(int)); | |
965 | pos += sizeof(int); | |
966 | } | |
967 | ||
968 | wpa_priv_send_event(iface, event, buf, buflen); | |
969 | ||
970 | os_free(buf); | |
971 | } | |
972 | ||
973 | ||
974 | static void wpa_priv_send_interface_status(struct wpa_priv_interface *iface, | |
975 | union wpa_event_data *data) | |
976 | { | |
977 | int ievent; | |
978 | size_t len, maxlen; | |
979 | u8 *buf; | |
980 | char *ifname; | |
981 | ||
982 | if (data == NULL) | |
983 | return; | |
984 | ||
985 | ievent = data->interface_status.ievent; | |
986 | maxlen = sizeof(data->interface_status.ifname); | |
987 | ifname = data->interface_status.ifname; | |
988 | for (len = 0; len < maxlen && ifname[len]; len++) | |
989 | ; | |
990 | ||
991 | buf = os_malloc(sizeof(int) + len); | |
992 | if (buf == NULL) | |
993 | return; | |
994 | ||
995 | os_memcpy(buf, &ievent, sizeof(int)); | |
996 | os_memcpy(buf + sizeof(int), ifname, len); | |
997 | ||
998 | wpa_priv_send_event(iface, PRIVSEP_EVENT_INTERFACE_STATUS, | |
999 | buf, sizeof(int) + len); | |
1000 | ||
1001 | os_free(buf); | |
1002 | ||
1003 | } | |
1004 | ||
1005 | ||
1006 | static void wpa_priv_send_ft_response(struct wpa_priv_interface *iface, | |
1007 | union wpa_event_data *data) | |
1008 | { | |
1009 | size_t len; | |
1010 | u8 *buf, *pos; | |
1011 | ||
1012 | if (data == NULL || data->ft_ies.ies == NULL) | |
1013 | return; | |
1014 | ||
1015 | len = sizeof(int) + ETH_ALEN + data->ft_ies.ies_len; | |
1016 | buf = os_malloc(len); | |
1017 | if (buf == NULL) | |
1018 | return; | |
1019 | ||
1020 | pos = buf; | |
1021 | os_memcpy(pos, &data->ft_ies.ft_action, sizeof(int)); | |
1022 | pos += sizeof(int); | |
1023 | os_memcpy(pos, data->ft_ies.target_ap, ETH_ALEN); | |
1024 | pos += ETH_ALEN; | |
1025 | os_memcpy(pos, data->ft_ies.ies, data->ft_ies.ies_len); | |
1026 | ||
1027 | wpa_priv_send_event(iface, PRIVSEP_EVENT_FT_RESPONSE, buf, len); | |
1028 | ||
1029 | os_free(buf); | |
1030 | ||
1031 | } | |
1032 | ||
1033 | ||
f7fcfc34 | 1034 | void wpa_supplicant_event(void *ctx, enum wpa_event_type event, |
6fc6879b JM |
1035 | union wpa_event_data *data) |
1036 | { | |
1037 | struct wpa_priv_interface *iface = ctx; | |
1038 | ||
1039 | wpa_printf(MSG_DEBUG, "%s - event=%d", __func__, event); | |
1040 | ||
1041 | if (!iface->wpas_registered) { | |
1042 | wpa_printf(MSG_DEBUG, "Driver event received, but " | |
1043 | "wpa_supplicant not registered"); | |
1044 | return; | |
1045 | } | |
1046 | ||
1047 | switch (event) { | |
1048 | case EVENT_ASSOC: | |
1049 | wpa_priv_send_assoc(iface, PRIVSEP_EVENT_ASSOC, data); | |
1050 | break; | |
1051 | case EVENT_DISASSOC: | |
1052 | wpa_priv_send_event(iface, PRIVSEP_EVENT_DISASSOC, NULL, 0); | |
1053 | break; | |
1054 | case EVENT_ASSOCINFO: | |
1055 | if (data == NULL) | |
1056 | return; | |
1057 | wpa_priv_send_assoc(iface, PRIVSEP_EVENT_ASSOCINFO, data); | |
1058 | break; | |
1059 | case EVENT_MICHAEL_MIC_FAILURE: | |
1060 | if (data == NULL) | |
1061 | return; | |
1062 | wpa_priv_send_event(iface, PRIVSEP_EVENT_MICHAEL_MIC_FAILURE, | |
1063 | &data->michael_mic_failure.unicast, | |
1064 | sizeof(int)); | |
1065 | break; | |
06f52b12 JM |
1066 | case EVENT_SCAN_STARTED: |
1067 | wpa_priv_send_event(iface, PRIVSEP_EVENT_SCAN_STARTED, NULL, | |
1068 | 0); | |
1069 | break; | |
6fc6879b JM |
1070 | case EVENT_SCAN_RESULTS: |
1071 | wpa_priv_send_event(iface, PRIVSEP_EVENT_SCAN_RESULTS, NULL, | |
1072 | 0); | |
1073 | break; | |
1074 | case EVENT_INTERFACE_STATUS: | |
1075 | wpa_priv_send_interface_status(iface, data); | |
1076 | break; | |
1077 | case EVENT_PMKID_CANDIDATE: | |
1078 | if (data == NULL) | |
1079 | return; | |
1080 | wpa_priv_send_event(iface, PRIVSEP_EVENT_PMKID_CANDIDATE, | |
1081 | &data->pmkid_candidate, | |
1082 | sizeof(struct pmkid_candidate)); | |
1083 | break; | |
6fc6879b JM |
1084 | case EVENT_FT_RESPONSE: |
1085 | wpa_priv_send_ft_response(iface, data); | |
1086 | break; | |
6ebe816b JM |
1087 | case EVENT_AUTH: |
1088 | wpa_priv_send_auth(iface, data); | |
1089 | break; | |
6fc6879b | 1090 | default: |
d01136a0 JM |
1091 | wpa_printf(MSG_DEBUG, "Unsupported driver event %d (%s) - TODO", |
1092 | event, event_to_string(event)); | |
6fc6879b JM |
1093 | break; |
1094 | } | |
1095 | } | |
1096 | ||
1097 | ||
45e3fc72 RM |
1098 | void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event, |
1099 | union wpa_event_data *data) | |
1100 | { | |
1101 | struct wpa_priv_global *global = ctx; | |
1102 | struct wpa_priv_interface *iface; | |
1103 | ||
1104 | if (event != EVENT_INTERFACE_STATUS) | |
1105 | return; | |
1106 | ||
1107 | for (iface = global->interfaces; iface; iface = iface->next) { | |
1108 | if (os_strcmp(iface->ifname, data->interface_status.ifname) == | |
1109 | 0) | |
1110 | break; | |
1111 | } | |
1112 | if (iface && iface->driver->get_ifindex) { | |
1113 | unsigned int ifindex; | |
1114 | ||
1115 | ifindex = iface->driver->get_ifindex(iface->drv_priv); | |
1116 | if (ifindex != data->interface_status.ifindex) { | |
1117 | wpa_printf(MSG_DEBUG, | |
1118 | "%s: interface status ifindex %d mismatch (%d)", | |
1119 | iface->ifname, ifindex, | |
1120 | data->interface_status.ifindex); | |
1121 | return; | |
1122 | } | |
1123 | } | |
1124 | if (iface) | |
1125 | wpa_supplicant_event(iface, event, data); | |
1126 | } | |
1127 | ||
1128 | ||
6fc6879b JM |
1129 | void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr, |
1130 | const u8 *buf, size_t len) | |
1131 | { | |
1132 | struct wpa_priv_interface *iface = ctx; | |
1133 | struct msghdr msg; | |
1134 | struct iovec io[3]; | |
1135 | int event = PRIVSEP_EVENT_RX_EAPOL; | |
1136 | ||
1137 | wpa_printf(MSG_DEBUG, "RX EAPOL from driver"); | |
1138 | io[0].iov_base = &event; | |
1139 | io[0].iov_len = sizeof(event); | |
1140 | io[1].iov_base = (u8 *) src_addr; | |
1141 | io[1].iov_len = ETH_ALEN; | |
1142 | io[2].iov_base = (u8 *) buf; | |
1143 | io[2].iov_len = len; | |
1144 | ||
1145 | os_memset(&msg, 0, sizeof(msg)); | |
1146 | msg.msg_iov = io; | |
1147 | msg.msg_iovlen = 3; | |
1148 | msg.msg_name = &iface->drv_addr; | |
e0641772 | 1149 | msg.msg_namelen = iface->drv_addr_len; |
6fc6879b JM |
1150 | |
1151 | if (sendmsg(iface->fd, &msg, 0) < 0) | |
a193231d JM |
1152 | wpa_printf(MSG_ERROR, "sendmsg(wpas_socket): %s", |
1153 | strerror(errno)); | |
6fc6879b JM |
1154 | } |
1155 | ||
96c7c307 | 1156 | |
f7fcfc34 | 1157 | static void wpa_priv_terminate(int sig, void *signal_ctx) |
6fc6879b JM |
1158 | { |
1159 | wpa_printf(MSG_DEBUG, "wpa_priv termination requested"); | |
1160 | eloop_terminate(); | |
1161 | } | |
1162 | ||
1163 | ||
1164 | static void wpa_priv_fd_workaround(void) | |
1165 | { | |
1166 | #ifdef __linux__ | |
1167 | int s, i; | |
1168 | /* When started from pcmcia-cs scripts, wpa_supplicant might start with | |
1169 | * fd 0, 1, and 2 closed. This will cause some issues because many | |
1170 | * places in wpa_supplicant are still printing out to stdout. As a | |
1171 | * workaround, make sure that fd's 0, 1, and 2 are not used for other | |
1172 | * sockets. */ | |
1173 | for (i = 0; i < 3; i++) { | |
1174 | s = open("/dev/null", O_RDWR); | |
1175 | if (s > 2) { | |
1176 | close(s); | |
1177 | break; | |
1178 | } | |
1179 | } | |
1180 | #endif /* __linux__ */ | |
1181 | } | |
1182 | ||
1183 | ||
1184 | static void usage(void) | |
1185 | { | |
1186 | printf("wpa_priv v" VERSION_STR "\n" | |
6774c6a9 | 1187 | "Copyright (c) 2007-2017, Jouni Malinen <j@w1.fi> and " |
96c7c307 | 1188 | "contributors\n" |
6fc6879b JM |
1189 | "\n" |
1190 | "usage:\n" | |
bd1f06aa JM |
1191 | " wpa_priv [-Bdd] [-c<ctrl dir>] [-P<pid file>] " |
1192 | "<driver:ifname> \\\n" | |
1193 | " [driver:ifname ...]\n"); | |
6fc6879b JM |
1194 | } |
1195 | ||
1196 | ||
6fc6879b JM |
1197 | int main(int argc, char *argv[]) |
1198 | { | |
1199 | int c, i; | |
1200 | int ret = -1; | |
1201 | char *pid_file = NULL; | |
1202 | int daemonize = 0; | |
1203 | char *ctrl_dir = "/var/run/wpa_priv"; | |
45e3fc72 RM |
1204 | struct wpa_priv_global global; |
1205 | struct wpa_priv_interface *iface; | |
6fc6879b JM |
1206 | |
1207 | if (os_program_init()) | |
1208 | return -1; | |
1209 | ||
1210 | wpa_priv_fd_workaround(); | |
1211 | ||
45e3fc72 RM |
1212 | os_memset(&global, 0, sizeof(global)); |
1213 | global.interfaces = NULL; | |
1214 | ||
6fc6879b JM |
1215 | for (;;) { |
1216 | c = getopt(argc, argv, "Bc:dP:"); | |
1217 | if (c < 0) | |
1218 | break; | |
1219 | switch (c) { | |
1220 | case 'B': | |
1221 | daemonize++; | |
1222 | break; | |
1223 | case 'c': | |
1224 | ctrl_dir = optarg; | |
1225 | break; | |
1226 | case 'd': | |
1227 | wpa_debug_level--; | |
1228 | break; | |
1229 | case 'P': | |
1230 | pid_file = os_rel2abs_path(optarg); | |
1231 | break; | |
1232 | default: | |
1233 | usage(); | |
ebf05623 | 1234 | goto out2; |
6fc6879b JM |
1235 | } |
1236 | } | |
1237 | ||
1238 | if (optind >= argc) { | |
1239 | usage(); | |
ebf05623 | 1240 | goto out2; |
6fc6879b JM |
1241 | } |
1242 | ||
1243 | wpa_printf(MSG_DEBUG, "wpa_priv control directory: '%s'", ctrl_dir); | |
1244 | ||
0456ea16 | 1245 | if (eloop_init()) { |
6fc6879b | 1246 | wpa_printf(MSG_ERROR, "Failed to initialize event loop"); |
ebf05623 | 1247 | goto out2; |
6fc6879b JM |
1248 | } |
1249 | ||
1250 | for (i = optind; i < argc; i++) { | |
1251 | wpa_printf(MSG_DEBUG, "Adding driver:interface %s", argv[i]); | |
45e3fc72 | 1252 | iface = wpa_priv_interface_init(&global, ctrl_dir, argv[i]); |
6fc6879b JM |
1253 | if (iface == NULL) |
1254 | goto out; | |
45e3fc72 RM |
1255 | iface->next = global.interfaces; |
1256 | global.interfaces = iface; | |
6fc6879b JM |
1257 | } |
1258 | ||
2e69bdd1 | 1259 | if (daemonize && os_daemonize(pid_file) && eloop_sock_requeue()) |
6fc6879b JM |
1260 | goto out; |
1261 | ||
1262 | eloop_register_signal_terminate(wpa_priv_terminate, NULL); | |
1263 | eloop_run(); | |
1264 | ||
1265 | ret = 0; | |
1266 | ||
1267 | out: | |
45e3fc72 | 1268 | iface = global.interfaces; |
6fc6879b JM |
1269 | while (iface) { |
1270 | struct wpa_priv_interface *prev = iface; | |
1271 | iface = iface->next; | |
1272 | wpa_priv_interface_deinit(prev); | |
1273 | } | |
1274 | ||
1275 | eloop_destroy(); | |
1276 | ||
ebf05623 JM |
1277 | out2: |
1278 | if (daemonize) | |
1279 | os_daemonize_terminate(pid_file); | |
6fc6879b JM |
1280 | os_free(pid_file); |
1281 | os_program_deinit(); | |
1282 | ||
1283 | return ret; | |
1284 | } |