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Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001/*
2 * WPA Supplicant - Driver event processing
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003 * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004 *
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07007 */
8
9#include "includes.h"
10
11#include "common.h"
12#include "eapol_supp/eapol_supp_sm.h"
13#include "rsn_supp/wpa.h"
14#include "eloop.h"
15#include "config.h"
16#include "l2_packet/l2_packet.h"
17#include "wpa_supplicant_i.h"
18#include "driver_i.h"
19#include "pcsc_funcs.h"
20#include "rsn_supp/preauth.h"
21#include "rsn_supp/pmksa_cache.h"
22#include "common/wpa_ctrl.h"
23#include "eap_peer/eap.h"
24#include "ap/hostapd.h"
25#include "p2p/p2p.h"
Dmitry Shmidt61d9df32012-08-29 16:22:06 -070026#include "wnm_sta.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070027#include "notify.h"
28#include "common/ieee802_11_defs.h"
29#include "common/ieee802_11_common.h"
30#include "crypto/random.h"
31#include "blacklist.h"
32#include "wpas_glue.h"
33#include "wps_supplicant.h"
34#include "ibss_rsn.h"
35#include "sme.h"
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080036#include "gas_query.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070037#include "p2p_supplicant.h"
38#include "bgscan.h"
Dmitry Shmidt04949592012-07-19 12:16:46 -070039#include "autoscan.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070040#include "ap.h"
41#include "bss.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070042#include "scan.h"
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080043#include "offchannel.h"
Dmitry Shmidt61d9df32012-08-29 16:22:06 -070044#include "interworking.h"
45
46
47static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
48 struct wpa_ssid *ssid)
49{
50 struct os_time now;
51
52 if (ssid == NULL || ssid->disabled_until.sec == 0)
53 return 0;
54
55 os_get_time(&now);
56 if (ssid->disabled_until.sec > now.sec)
57 return ssid->disabled_until.sec - now.sec;
58
59 wpas_clear_temp_disabled(wpa_s, ssid, 0);
60
61 return 0;
62}
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070063
64
65static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
66{
67 struct wpa_ssid *ssid, *old_ssid;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -070068 int res;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070069
70 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
71 return 0;
72
73 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
74 "information");
75 ssid = wpa_supplicant_get_ssid(wpa_s);
76 if (ssid == NULL) {
77 wpa_msg(wpa_s, MSG_INFO,
78 "No network configuration found for the current AP");
79 return -1;
80 }
81
Dmitry Shmidt04949592012-07-19 12:16:46 -070082 if (wpas_network_disabled(wpa_s, ssid)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070083 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
84 return -1;
85 }
86
Dmitry Shmidt61d9df32012-08-29 16:22:06 -070087 res = wpas_temp_disabled(wpa_s, ssid);
88 if (res > 0) {
89 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
90 "disabled for %d second(s)", res);
91 return -1;
92 }
93
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070094 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
95 "current AP");
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080096 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070097 u8 wpa_ie[80];
98 size_t wpa_ie_len = sizeof(wpa_ie);
99 wpa_supplicant_set_suites(wpa_s, NULL, ssid,
100 wpa_ie, &wpa_ie_len);
101 } else {
102 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
103 }
104
105 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
106 eapol_sm_invalidate_cached_session(wpa_s->eapol);
107 old_ssid = wpa_s->current_ssid;
108 wpa_s->current_ssid = ssid;
109 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
110 wpa_supplicant_initiate_eapol(wpa_s);
111 if (old_ssid != wpa_s->current_ssid)
112 wpas_notify_network_changed(wpa_s);
113
114 return 0;
115}
116
117
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800118void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700119{
120 struct wpa_supplicant *wpa_s = eloop_ctx;
121
122 if (wpa_s->countermeasures) {
123 wpa_s->countermeasures = 0;
124 wpa_drv_set_countermeasures(wpa_s, 0);
125 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
126 wpa_supplicant_req_scan(wpa_s, 0, 0);
127 }
128}
129
130
131void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
132{
133 int bssid_changed;
134
Dmitry Shmidt04949592012-07-19 12:16:46 -0700135 wnm_bss_keep_alive_deinit(wpa_s);
136
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700137#ifdef CONFIG_IBSS_RSN
138 ibss_rsn_deinit(wpa_s->ibss_rsn);
139 wpa_s->ibss_rsn = NULL;
140#endif /* CONFIG_IBSS_RSN */
141
Dmitry Shmidtc55524a2011-07-07 11:18:38 -0700142#ifdef CONFIG_AP
143 wpa_supplicant_ap_deinit(wpa_s);
144#endif /* CONFIG_AP */
145
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700146 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
147 return;
148
149 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800150#ifdef ANDROID
Dmitry Shmidt43007fd2011-04-11 15:58:40 -0700151 wpa_s->conf->ap_scan = DEFAULT_AP_SCAN;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800152#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700153 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
154 os_memset(wpa_s->bssid, 0, ETH_ALEN);
155 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
Dmitry Shmidt04949592012-07-19 12:16:46 -0700156#ifdef CONFIG_SME
157 wpa_s->sme.prev_bssid_set = 0;
158#endif /* CONFIG_SME */
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800159#ifdef CONFIG_P2P
160 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
161#endif /* CONFIG_P2P */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700162 wpa_s->current_bss = NULL;
163 wpa_s->assoc_freq = 0;
Dmitry Shmidtc55524a2011-07-07 11:18:38 -0700164#ifdef CONFIG_IEEE80211R
165#ifdef CONFIG_SME
166 if (wpa_s->sme.ft_ies)
167 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
168#endif /* CONFIG_SME */
169#endif /* CONFIG_IEEE80211R */
170
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700171 if (bssid_changed)
172 wpas_notify_bssid_changed(wpa_s);
173
174 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
175 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
176 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
177 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
178 wpa_s->ap_ies_from_associnfo = 0;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700179 wpa_s->current_ssid = NULL;
180 wpa_s->key_mgmt = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700181}
182
183
184static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
185{
186 struct wpa_ie_data ie;
187 int pmksa_set = -1;
188 size_t i;
189
190 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
191 ie.pmkid == NULL)
192 return;
193
194 for (i = 0; i < ie.num_pmkid; i++) {
195 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
196 ie.pmkid + i * PMKID_LEN,
197 NULL, NULL, 0);
198 if (pmksa_set == 0) {
199 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
200 break;
201 }
202 }
203
204 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
205 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
206}
207
208
209static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
210 union wpa_event_data *data)
211{
212 if (data == NULL) {
213 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
214 "event");
215 return;
216 }
217 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
218 " index=%d preauth=%d",
219 MAC2STR(data->pmkid_candidate.bssid),
220 data->pmkid_candidate.index,
221 data->pmkid_candidate.preauth);
222
223 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
224 data->pmkid_candidate.index,
225 data->pmkid_candidate.preauth);
226}
227
228
229static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
230{
231 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
232 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
233 return 0;
234
235#ifdef IEEE8021X_EAPOL
236 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
237 wpa_s->current_ssid &&
238 !(wpa_s->current_ssid->eapol_flags &
239 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
240 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
241 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
242 * plaintext or static WEP keys). */
243 return 0;
244 }
245#endif /* IEEE8021X_EAPOL */
246
247 return 1;
248}
249
250
251/**
252 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
253 * @wpa_s: pointer to wpa_supplicant data
254 * @ssid: Configuration data for the network
255 * Returns: 0 on success, -1 on failure
256 *
257 * This function is called when starting authentication with a network that is
258 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
259 */
260int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
261 struct wpa_ssid *ssid)
262{
263#ifdef IEEE8021X_EAPOL
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800264#ifdef PCSC_FUNCS
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700265 int aka = 0, sim = 0, type;
266
267 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
268 return 0;
269
270 if (ssid->eap.eap_methods == NULL) {
271 sim = 1;
272 aka = 1;
273 } else {
274 struct eap_method_type *eap = ssid->eap.eap_methods;
275 while (eap->vendor != EAP_VENDOR_IETF ||
276 eap->method != EAP_TYPE_NONE) {
277 if (eap->vendor == EAP_VENDOR_IETF) {
278 if (eap->method == EAP_TYPE_SIM)
279 sim = 1;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700280 else if (eap->method == EAP_TYPE_AKA ||
281 eap->method == EAP_TYPE_AKA_PRIME)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700282 aka = 1;
283 }
284 eap++;
285 }
286 }
287
288 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
289 sim = 0;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700290 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
291 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
292 NULL)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700293 aka = 0;
294
295 if (!sim && !aka) {
296 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
297 "use SIM, but neither EAP-SIM nor EAP-AKA are "
298 "enabled");
299 return 0;
300 }
301
302 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
303 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
304 if (sim && aka)
305 type = SCARD_TRY_BOTH;
306 else if (aka)
307 type = SCARD_USIM_ONLY;
308 else
309 type = SCARD_GSM_SIM_ONLY;
310
Dmitry Shmidt04949592012-07-19 12:16:46 -0700311 wpa_s->scard = scard_init(type, NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700312 if (wpa_s->scard == NULL) {
313 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
314 "(pcsc-lite)");
315 return -1;
316 }
317 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
318 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800319#endif /* PCSC_FUNCS */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700320#endif /* IEEE8021X_EAPOL */
321
322 return 0;
323}
324
325
326#ifndef CONFIG_NO_SCAN_PROCESSING
327static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
328 struct wpa_ssid *ssid)
329{
330 int i, privacy = 0;
331
332 if (ssid->mixed_cell)
333 return 1;
334
335#ifdef CONFIG_WPS
336 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
337 return 1;
338#endif /* CONFIG_WPS */
339
340 for (i = 0; i < NUM_WEP_KEYS; i++) {
341 if (ssid->wep_key_len[i]) {
342 privacy = 1;
343 break;
344 }
345 }
346#ifdef IEEE8021X_EAPOL
347 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
348 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
349 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
350 privacy = 1;
351#endif /* IEEE8021X_EAPOL */
352
Jouni Malinen75ecf522011-06-27 15:19:46 -0700353 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
354 privacy = 1;
355
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700356 if (bss->caps & IEEE80211_CAP_PRIVACY)
357 return privacy;
358 return !privacy;
359}
360
361
362static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
363 struct wpa_ssid *ssid,
364 struct wpa_scan_res *bss)
365{
366 struct wpa_ie_data ie;
367 int proto_match = 0;
368 const u8 *rsn_ie, *wpa_ie;
369 int ret;
370 int wep_ok;
371
372 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
373 if (ret >= 0)
374 return ret;
375
376 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
377 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
378 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
379 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
380 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
381
382 rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
383 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
384 proto_match++;
385
386 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
387 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
388 "failed");
389 break;
390 }
391
392 if (wep_ok &&
393 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
394 {
395 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
396 "in RSN IE");
397 return 1;
398 }
399
400 if (!(ie.proto & ssid->proto)) {
401 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
402 "mismatch");
403 break;
404 }
405
406 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
407 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
408 "cipher mismatch");
409 break;
410 }
411
412 if (!(ie.group_cipher & ssid->group_cipher)) {
413 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
414 "cipher mismatch");
415 break;
416 }
417
418 if (!(ie.key_mgmt & ssid->key_mgmt)) {
419 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
420 "mismatch");
421 break;
422 }
423
424#ifdef CONFIG_IEEE80211W
425 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
426 ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
427 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
428 "frame protection");
429 break;
430 }
431#endif /* CONFIG_IEEE80211W */
432
433 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
434 return 1;
435 }
436
437 wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
438 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
439 proto_match++;
440
441 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
442 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
443 "failed");
444 break;
445 }
446
447 if (wep_ok &&
448 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
449 {
450 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
451 "in WPA IE");
452 return 1;
453 }
454
455 if (!(ie.proto & ssid->proto)) {
456 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
457 "mismatch");
458 break;
459 }
460
461 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
462 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
463 "cipher mismatch");
464 break;
465 }
466
467 if (!(ie.group_cipher & ssid->group_cipher)) {
468 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
469 "cipher mismatch");
470 break;
471 }
472
473 if (!(ie.key_mgmt & ssid->key_mgmt)) {
474 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
475 "mismatch");
476 break;
477 }
478
479 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
480 return 1;
481 }
482
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700483 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
484 !rsn_ie) {
485 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
486 return 1;
487 }
488
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700489 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
490 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
491 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
492 return 0;
493 }
494
495 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
496 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
497 return 1;
498 }
499
500 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
501 "WPA/WPA2");
502
503 return 0;
504}
505
506
507static int freq_allowed(int *freqs, int freq)
508{
509 int i;
510
511 if (freqs == NULL)
512 return 1;
513
514 for (i = 0; freqs[i]; i++)
515 if (freqs[i] == freq)
516 return 1;
517 return 0;
518}
519
520
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800521static int ht_supported(const struct hostapd_hw_modes *mode)
522{
523 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) {
524 /*
525 * The driver did not indicate whether it supports HT. Assume
526 * it does to avoid connection issues.
527 */
528 return 1;
529 }
530
531 /*
532 * IEEE Std 802.11n-2009 20.1.1:
533 * An HT non-AP STA shall support all EQM rates for one spatial stream.
534 */
535 return mode->mcs_set[0] == 0xff;
536}
537
538
539static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_scan_res *bss)
540{
541 const struct hostapd_hw_modes *mode = NULL, *modes;
542 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
543 const u8 *rate_ie;
544 int i, j, k;
545
546 if (bss->freq == 0)
547 return 1; /* Cannot do matching without knowing band */
548
549 modes = wpa_s->hw.modes;
550 if (modes == NULL) {
551 /*
552 * The driver does not provide any additional information
553 * about the utilized hardware, so allow the connection attempt
554 * to continue.
555 */
556 return 1;
557 }
558
559 for (i = 0; i < wpa_s->hw.num_modes; i++) {
560 for (j = 0; j < modes[i].num_channels; j++) {
561 int freq = modes[i].channels[j].freq;
562 if (freq == bss->freq) {
563 if (mode &&
564 mode->mode == HOSTAPD_MODE_IEEE80211G)
565 break; /* do not allow 802.11b replace
566 * 802.11g */
567 mode = &modes[i];
568 break;
569 }
570 }
571 }
572
573 if (mode == NULL)
574 return 0;
575
576 for (i = 0; i < (int) sizeof(scan_ie); i++) {
577 rate_ie = wpa_scan_get_ie(bss, scan_ie[i]);
578 if (rate_ie == NULL)
579 continue;
580
581 for (j = 2; j < rate_ie[1] + 2; j++) {
582 int flagged = !!(rate_ie[j] & 0x80);
583 int r = (rate_ie[j] & 0x7f) * 5;
584
585 /*
586 * IEEE Std 802.11n-2009 7.3.2.2:
587 * The new BSS Membership selector value is encoded
588 * like a legacy basic rate, but it is not a rate and
589 * only indicates if the BSS members are required to
590 * support the mandatory features of Clause 20 [HT PHY]
591 * in order to join the BSS.
592 */
593 if (flagged && ((rate_ie[j] & 0x7f) ==
594 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
595 if (!ht_supported(mode)) {
596 wpa_dbg(wpa_s, MSG_DEBUG,
597 " hardware does not support "
598 "HT PHY");
599 return 0;
600 }
601 continue;
602 }
603
604 if (!flagged)
605 continue;
606
607 /* check for legacy basic rates */
608 for (k = 0; k < mode->num_rates; k++) {
609 if (mode->rates[k] == r)
610 break;
611 }
612 if (k == mode->num_rates) {
613 /*
614 * IEEE Std 802.11-2007 7.3.2.2 demands that in
615 * order to join a BSS all required rates
616 * have to be supported by the hardware.
617 */
618 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does "
619 "not support required rate %d.%d Mbps",
620 r / 10, r % 10);
621 return 0;
622 }
623 }
624 }
625
626 return 1;
627}
628
629
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700630static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
631 int i, struct wpa_scan_res *bss,
632 struct wpa_ssid *group)
633{
634 const u8 *ssid_;
635 u8 wpa_ie_len, rsn_ie_len, ssid_len;
636 int wpa;
637 struct wpa_blacklist *e;
638 const u8 *ie;
639 struct wpa_ssid *ssid;
640
641 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
642 ssid_ = ie ? ie + 2 : (u8 *) "";
643 ssid_len = ie ? ie[1] : 0;
644
645 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
646 wpa_ie_len = ie ? ie[1] : 0;
647
648 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
649 rsn_ie_len = ie ? ie[1] : 0;
650
651 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
652 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
653 i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len),
654 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
655 wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
656
657 e = wpa_blacklist_get(wpa_s, bss->bssid);
658 if (e) {
659 int limit = 1;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700660 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700661 /*
662 * When only a single network is enabled, we can
663 * trigger blacklisting on the first failure. This
664 * should not be done with multiple enabled networks to
665 * avoid getting forced to move into a worse ESS on
666 * single error if there are no other BSSes of the
667 * current ESS.
668 */
669 limit = 0;
670 }
671 if (e->count > limit) {
672 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
673 "(count=%d limit=%d)", e->count, limit);
674 return NULL;
675 }
676 }
677
678 if (ssid_len == 0) {
679 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
680 return NULL;
681 }
682
683 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
684
685 for (ssid = group; ssid; ssid = ssid->pnext) {
686 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700687 int res;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700688
Dmitry Shmidt04949592012-07-19 12:16:46 -0700689 if (wpas_network_disabled(wpa_s, ssid)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700690 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
691 continue;
692 }
693
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700694 res = wpas_temp_disabled(wpa_s, ssid);
695 if (res > 0) {
696 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
697 "temporarily for %d second(s)", res);
698 continue;
699 }
700
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700701#ifdef CONFIG_WPS
702 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
703 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
704 "(WPS)");
705 continue;
706 }
707
708 if (wpa && ssid->ssid_len == 0 &&
709 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
710 check_ssid = 0;
711
712 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
713 /* Only allow wildcard SSID match if an AP
714 * advertises active WPS operation that matches
715 * with our mode. */
716 check_ssid = 1;
717 if (ssid->ssid_len == 0 &&
718 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
719 check_ssid = 0;
720 }
721#endif /* CONFIG_WPS */
722
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800723 if (ssid->bssid_set && ssid->ssid_len == 0 &&
724 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
725 check_ssid = 0;
726
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700727 if (check_ssid &&
728 (ssid_len != ssid->ssid_len ||
729 os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
730 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
731 continue;
732 }
733
734 if (ssid->bssid_set &&
735 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
736 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
737 continue;
738 }
739
740 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
741 continue;
742
743 if (!wpa &&
744 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
745 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
746 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
747 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
748 "not allowed");
749 continue;
750 }
751
Jouni Malinen75ecf522011-06-27 15:19:46 -0700752 if (!wpa_supplicant_match_privacy(bss, ssid)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700753 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
754 "mismatch");
755 continue;
756 }
757
Jouni Malinen75ecf522011-06-27 15:19:46 -0700758 if (bss->caps & IEEE80211_CAP_IBSS) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700759 wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) "
760 "network");
761 continue;
762 }
763
764 if (!freq_allowed(ssid->freq_list, bss->freq)) {
765 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
766 "allowed");
767 continue;
768 }
769
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800770 if (!rate_match(wpa_s, bss)) {
771 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
772 "not match");
773 continue;
774 }
775
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700776#ifdef CONFIG_P2P
777 /*
778 * TODO: skip the AP if its P2P IE has Group Formation
779 * bit set in the P2P Group Capability Bitmap and we
780 * are not in Group Formation with that device.
781 */
782#endif /* CONFIG_P2P */
783
784 /* Matching configuration found */
785 return ssid;
786 }
787
788 /* No matching configuration found */
789 return NULL;
790}
791
792
793static struct wpa_bss *
794wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
795 struct wpa_scan_results *scan_res,
796 struct wpa_ssid *group,
797 struct wpa_ssid **selected_ssid)
798{
799 size_t i;
800
801 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
802 group->priority);
803
804 for (i = 0; i < scan_res->num; i++) {
805 struct wpa_scan_res *bss = scan_res->res[i];
806 const u8 *ie, *ssid;
807 u8 ssid_len;
808
809 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
810 if (!*selected_ssid)
811 continue;
812
813 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
814 ssid = ie ? ie + 2 : (u8 *) "";
815 ssid_len = ie ? ie[1] : 0;
816
817 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
818 " ssid='%s'",
819 MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len));
820 return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len);
821 }
822
823 return NULL;
824}
825
826
827static struct wpa_bss *
828wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
829 struct wpa_scan_results *scan_res,
830 struct wpa_ssid **selected_ssid)
831{
832 struct wpa_bss *selected = NULL;
833 int prio;
834
835 while (selected == NULL) {
836 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
837 selected = wpa_supplicant_select_bss(
838 wpa_s, scan_res, wpa_s->conf->pssid[prio],
839 selected_ssid);
840 if (selected)
841 break;
842 }
843
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800844 if (selected == NULL && wpa_s->blacklist &&
845 !wpa_s->countermeasures) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700846 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
847 "blacklist and try again");
848 wpa_blacklist_clear(wpa_s);
849 wpa_s->blacklist_cleared++;
850 } else if (selected == NULL)
851 break;
852 }
853
854 return selected;
855}
856
857
858static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
859 int timeout_sec, int timeout_usec)
860{
Dmitry Shmidt04949592012-07-19 12:16:46 -0700861 if (!wpa_supplicant_enabled_networks(wpa_s)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700862 /*
863 * No networks are enabled; short-circuit request so
864 * we don't wait timeout seconds before transitioning
865 * to INACTIVE state.
866 */
867 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
868 return;
869 }
870 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
871}
872
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800873
Dmitry Shmidt44da0252011-08-23 12:30:30 -0700874int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800875 struct wpa_bss *selected,
876 struct wpa_ssid *ssid)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700877{
878 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
879 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
880 "PBC session overlap");
881#ifdef CONFIG_P2P
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800882 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
Dmitry Shmidt44da0252011-08-23 12:30:30 -0700883 return -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700884#endif /* CONFIG_P2P */
885
886#ifdef CONFIG_WPS
887 wpas_wps_cancel(wpa_s);
888#endif /* CONFIG_WPS */
Dmitry Shmidt44da0252011-08-23 12:30:30 -0700889 return -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700890 }
891
892 /*
893 * Do not trigger new association unless the BSSID has changed or if
894 * reassociation is requested. If we are in process of associating with
895 * the selected BSSID, do not trigger new attempt.
896 */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800897 if (wpa_s->reassociate ||
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700898 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
899 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
900 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
901 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
902 0))) {
903 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
904 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
Dmitry Shmidt44da0252011-08-23 12:30:30 -0700905 return 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700906 }
907 wpa_msg(wpa_s, MSG_DEBUG, "Request association: "
908 "reassociate: %d selected: "MACSTR " bssid: " MACSTR
909 " pending: " MACSTR " wpa_state: %s",
910 wpa_s->reassociate, MAC2STR(selected->bssid),
911 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
912 wpa_supplicant_state_txt(wpa_s->wpa_state));
913 wpa_supplicant_associate(wpa_s, selected, ssid);
914 } else {
915 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the "
916 "selected AP");
917 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800918
Dmitry Shmidt44da0252011-08-23 12:30:30 -0700919 return 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700920}
921
922
923static struct wpa_ssid *
924wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
925{
926 int prio;
927 struct wpa_ssid *ssid;
928
929 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
930 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
931 {
Dmitry Shmidt04949592012-07-19 12:16:46 -0700932 if (wpas_network_disabled(wpa_s, ssid))
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700933 continue;
934 if (ssid->mode == IEEE80211_MODE_IBSS ||
935 ssid->mode == IEEE80211_MODE_AP)
936 return ssid;
937 }
938 }
939 return NULL;
940}
941
942
943/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
944 * on BSS added and BSS changed events */
945static void wpa_supplicant_rsn_preauth_scan_results(
Jouni Malinen87fd2792011-05-16 18:35:42 +0300946 struct wpa_supplicant *wpa_s)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700947{
Jouni Malinen87fd2792011-05-16 18:35:42 +0300948 struct wpa_bss *bss;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700949
950 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
951 return;
952
Jouni Malinen87fd2792011-05-16 18:35:42 +0300953 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700954 const u8 *ssid, *rsn;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700955
Jouni Malinen87fd2792011-05-16 18:35:42 +0300956 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700957 if (ssid == NULL)
958 continue;
959
Jouni Malinen87fd2792011-05-16 18:35:42 +0300960 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700961 if (rsn == NULL)
962 continue;
963
Jouni Malinen87fd2792011-05-16 18:35:42 +0300964 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700965 }
966
967}
968
969
970static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
971 struct wpa_bss *selected,
972 struct wpa_ssid *ssid,
973 struct wpa_scan_results *scan_res)
974{
975 size_t i;
976 struct wpa_scan_res *current_bss = NULL;
977 int min_diff;
978
979 if (wpa_s->reassociate)
980 return 1; /* explicit request to reassociate */
981 if (wpa_s->wpa_state < WPA_ASSOCIATED)
982 return 1; /* we are not associated; continue */
983 if (wpa_s->current_ssid == NULL)
984 return 1; /* unknown current SSID */
985 if (wpa_s->current_ssid != ssid)
986 return 1; /* different network block */
987
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800988 if (wpas_driver_bss_selection(wpa_s))
989 return 0; /* Driver-based roaming */
990
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700991 for (i = 0; i < scan_res->num; i++) {
992 struct wpa_scan_res *res = scan_res->res[i];
993 const u8 *ie;
994 if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0)
995 continue;
996
997 ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
998 if (ie == NULL)
999 continue;
1000 if (ie[1] != wpa_s->current_ssid->ssid_len ||
1001 os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0)
1002 continue;
1003 current_bss = res;
1004 break;
1005 }
1006
1007 if (!current_bss)
1008 return 1; /* current BSS not seen in scan results */
1009
Dmitry Shmidt9e077672012-04-13 10:07:27 -07001010#ifndef CONFIG_NO_ROAMING
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001011 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1012 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
1013 MAC2STR(current_bss->bssid), current_bss->level);
1014 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
1015 MAC2STR(selected->bssid), selected->level);
1016
1017 if (wpa_s->current_ssid->bssid_set &&
1018 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1019 0) {
1020 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1021 "has preferred BSSID");
1022 return 1;
1023 }
1024
1025 min_diff = 2;
1026 if (current_bss->level < 0) {
1027 if (current_bss->level < -85)
1028 min_diff = 1;
1029 else if (current_bss->level < -80)
1030 min_diff = 2;
1031 else if (current_bss->level < -75)
1032 min_diff = 3;
1033 else if (current_bss->level < -70)
1034 min_diff = 4;
1035 else
1036 min_diff = 5;
1037 }
1038 if (abs(current_bss->level - selected->level) < min_diff) {
1039 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1040 "in signal level");
1041 return 0;
1042 }
1043
1044 return 1;
Dmitry Shmidt04949592012-07-19 12:16:46 -07001045#else /* CONFIG_NO_ROAMING */
Dmitry Shmidtefdec2e2011-08-16 11:55:46 -07001046 return 0;
Dmitry Shmidt04949592012-07-19 12:16:46 -07001047#endif /* CONFIG_NO_ROAMING */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001048}
1049
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001050
Dmitry Shmidt04949592012-07-19 12:16:46 -07001051/* Return < 0 if no scan results could be fetched or if scan results should not
1052 * be shared with other virtual interfaces. */
Dmitry Shmidtf6c92c42012-01-26 12:57:43 -08001053#ifdef ANDROID_P2P
1054static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1055 union wpa_event_data *data, int suppress_event)
1056#else
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001057static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1058 union wpa_event_data *data)
Dmitry Shmidtf6c92c42012-01-26 12:57:43 -08001059#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001060{
1061 struct wpa_bss *selected;
1062 struct wpa_ssid *ssid = NULL;
1063 struct wpa_scan_results *scan_res;
1064 int ap = 0;
Dmitry Shmidt4530cfd2012-09-09 15:20:40 -07001065#ifndef CONFIG_NO_RANDOM_POOL
1066 size_t i, num;
1067#endif /* CONFIG_NO_RANDOM_POOL */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001068
1069#ifdef CONFIG_AP
1070 if (wpa_s->ap_iface)
1071 ap = 1;
1072#endif /* CONFIG_AP */
1073
1074 wpa_supplicant_notify_scanning(wpa_s, 0);
1075
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001076#ifdef CONFIG_P2P
Dmitry Shmidt2fb777c2012-05-02 12:29:53 -07001077#ifdef ANDROID_P2P
1078 if (p2p_search_pending(wpa_s->global->p2p) && !wpa_s->global->p2p_disabled &&
1079#else
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001080 if (wpa_s->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
Dmitry Shmidt2fb777c2012-05-02 12:29:53 -07001081#endif
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001082 wpa_s->global->p2p != NULL && !wpa_s->sta_scan_pending) {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001083 wpa_s->p2p_cb_on_scan_complete = 0;
1084 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
1085 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
1086 "stopped scan processing");
1087 return -1;
1088 }
1089 }
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001090 wpa_s->sta_scan_pending = 0;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001091#endif /* CONFIG_P2P */
1092
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001093 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1094 data ? &data->scan_info :
1095 NULL, 1);
1096 if (scan_res == NULL) {
1097 if (wpa_s->conf->ap_scan == 2 || ap)
1098 return -1;
1099 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1100 "scanning again");
1101 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1102 return -1;
1103 }
1104
1105#ifndef CONFIG_NO_RANDOM_POOL
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001106 num = scan_res->num;
1107 if (num > 10)
1108 num = 10;
1109 for (i = 0; i < num; i++) {
1110 u8 buf[5];
1111 struct wpa_scan_res *res = scan_res->res[i];
1112 buf[0] = res->bssid[5];
1113 buf[1] = res->qual & 0xff;
1114 buf[2] = res->noise & 0xff;
1115 buf[3] = res->level & 0xff;
1116 buf[4] = res->tsf & 0xff;
1117 random_add_randomness(buf, sizeof(buf));
1118 }
1119#endif /* CONFIG_NO_RANDOM_POOL */
1120
1121 if (wpa_s->scan_res_handler) {
1122 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1123 struct wpa_scan_results *scan_res);
1124
1125 scan_res_handler = wpa_s->scan_res_handler;
1126 wpa_s->scan_res_handler = NULL;
1127 scan_res_handler(wpa_s, scan_res);
1128
1129 wpa_scan_results_free(scan_res);
Dmitry Shmidt04949592012-07-19 12:16:46 -07001130 return -2;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001131 }
1132
1133 if (ap) {
1134 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1135#ifdef CONFIG_AP
1136 if (wpa_s->ap_iface->scan_cb)
1137 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1138#endif /* CONFIG_AP */
1139 wpa_scan_results_free(scan_res);
1140 return 0;
1141 }
Dmitry Shmidtf6c92c42012-01-26 12:57:43 -08001142#ifdef ANDROID_P2P
1143 if(!suppress_event)
Dmitry Shmidtf6c92c42012-01-26 12:57:43 -08001144 {
1145 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
1146 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1147 wpas_notify_scan_results(wpa_s);
1148 }
Dmitry Shmidt04949592012-07-19 12:16:46 -07001149#else
1150 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
1151 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1152 wpas_notify_scan_results(wpa_s);
1153#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001154
1155 wpas_notify_scan_done(wpa_s, 1);
1156
Dmitry Shmidt04949592012-07-19 12:16:46 -07001157 if (sme_proc_obss_scan(wpa_s) > 0) {
1158 wpa_scan_results_free(scan_res);
1159 return 0;
1160 }
1161
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001162 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
1163 wpa_scan_results_free(scan_res);
1164 return 0;
1165 }
1166
Dmitry Shmidt04949592012-07-19 12:16:46 -07001167 if (autoscan_notify_scan(wpa_s, scan_res)) {
1168 wpa_scan_results_free(scan_res);
1169 return 0;
1170 }
1171
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001172 if (wpa_s->disconnected) {
1173 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1174 wpa_scan_results_free(scan_res);
1175 return 0;
1176 }
1177
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001178 if (!wpas_driver_bss_selection(wpa_s) &&
1179 bgscan_notify_scan(wpa_s, scan_res) == 1) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001180 wpa_scan_results_free(scan_res);
1181 return 0;
1182 }
1183
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001184 wpas_wps_update_ap_info(wpa_s, scan_res);
1185
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001186 selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
1187
1188 if (selected) {
1189 int skip;
1190 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid,
1191 scan_res);
1192 wpa_scan_results_free(scan_res);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001193 if (skip) {
1194 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001195 return 0;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001196 }
1197
Dmitry Shmidt44da0252011-08-23 12:30:30 -07001198 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001199 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
Dmitry Shmidt44da0252011-08-23 12:30:30 -07001200 return -1;
1201 }
Jouni Malinen87fd2792011-05-16 18:35:42 +03001202 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001203 } else {
1204 wpa_scan_results_free(scan_res);
1205 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1206 ssid = wpa_supplicant_pick_new_network(wpa_s);
1207 if (ssid) {
1208 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1209 wpa_supplicant_associate(wpa_s, NULL, ssid);
Jouni Malinen87fd2792011-05-16 18:35:42 +03001210 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001211 } else {
1212 int timeout_sec = wpa_s->scan_interval;
1213 int timeout_usec = 0;
1214#ifdef CONFIG_P2P
Dmitry Shmidt04949592012-07-19 12:16:46 -07001215 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1)
1216 return 0;
1217
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001218 if (wpa_s->p2p_in_provisioning) {
1219 /*
1220 * Use shorter wait during P2P Provisioning
1221 * state to speed up group formation.
1222 */
1223 timeout_sec = 0;
1224 timeout_usec = 250000;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001225 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1226 timeout_usec);
1227 return 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001228 }
1229#endif /* CONFIG_P2P */
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001230#ifdef CONFIG_INTERWORKING
1231 if (wpa_s->conf->auto_interworking &&
1232 wpa_s->conf->interworking &&
1233 wpa_s->conf->cred) {
1234 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1235 "start ANQP fetch since no matching "
1236 "networks found");
1237 wpa_s->network_select = 1;
1238 wpa_s->auto_network_select = 1;
1239 interworking_start_fetch_anqp(wpa_s);
1240 return 0;
1241 }
1242#endif /* CONFIG_INTERWORKING */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001243 if (wpa_supplicant_req_sched_scan(wpa_s))
1244 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1245 timeout_usec);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001246 }
1247 }
1248 return 0;
1249}
1250
1251
1252static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1253 union wpa_event_data *data)
1254{
1255 const char *rn, *rn2;
1256 struct wpa_supplicant *ifs;
Dmitry Shmidtf6c92c42012-01-26 12:57:43 -08001257#ifdef ANDROID_P2P
1258 if (_wpa_supplicant_event_scan_results(wpa_s, data, 0) < 0) {
1259#else
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001260 if (_wpa_supplicant_event_scan_results(wpa_s, data) < 0) {
Dmitry Shmidtf6c92c42012-01-26 12:57:43 -08001261#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001262 /*
1263 * If no scan results could be fetched, then no need to
1264 * notify those interfaces that did not actually request
1265 * this scan.
1266 */
1267 return;
1268 }
1269
1270 /*
1271 * Check other interfaces to see if they have the same radio-name. If
1272 * so, they get updated with this same scan info.
1273 */
1274 if (!wpa_s->driver->get_radio_name)
1275 return;
1276
1277 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
1278 if (rn == NULL || rn[0] == '\0')
1279 return;
1280
1281 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces "
1282 "sharing same radio (%s) in event_scan_results", rn);
1283
1284 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
1285 if (ifs == wpa_s || !ifs->driver->get_radio_name)
1286 continue;
1287
1288 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
1289 if (rn2 && os_strcmp(rn, rn2) == 0) {
1290 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1291 "sibling", ifs->ifname);
Dmitry Shmidt2fb777c2012-05-02 12:29:53 -07001292#ifdef ANDROID_P2P
1293 if ( (ifs->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) || (ifs->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)) {
1294 /* Do not update the scan results from STA interface to p2p interfaces */
1295 wpa_printf(MSG_DEBUG, "Not Updating scan results on interface %s from "
1296 "sibling %s", ifs->ifname, wpa_s->ifname);
1297 continue;
1298 }
1299 else {
1300 /* P2P_FIND will result in too many SCAN_RESULT_EVENTS within
1301 * no time. Avoid announcing it to application as it may not
1302 * be that useful (since results will be that of only 1,6,11).
1303 * over to any other interface as it
1304 */
1305 if(p2p_search_in_progress(wpa_s->global->p2p))
1306 _wpa_supplicant_event_scan_results(ifs, data, 1);
1307 else
1308 _wpa_supplicant_event_scan_results(ifs, data, 0);
1309 }
Dmitry Shmidtf6c92c42012-01-26 12:57:43 -08001310#else
Dmitry Shmidt2fb777c2012-05-02 12:29:53 -07001311 _wpa_supplicant_event_scan_results(ifs, data);
Dmitry Shmidtf6c92c42012-01-26 12:57:43 -08001312#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001313 }
1314 }
1315}
1316
1317#endif /* CONFIG_NO_SCAN_PROCESSING */
1318
1319
Dmitry Shmidt04949592012-07-19 12:16:46 -07001320#ifdef CONFIG_WNM
1321
1322static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1323{
1324 struct wpa_supplicant *wpa_s = eloop_ctx;
1325
1326 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1327 return;
1328
1329 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1330 MAC2STR(wpa_s->bssid));
1331 /* TODO: could skip this if normal data traffic has been sent */
1332 /* TODO: Consider using some more appropriate data frame for this */
1333 if (wpa_s->l2)
1334 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, (u8 *) "", 0);
1335
1336#ifdef CONFIG_SME
1337 if (wpa_s->sme.bss_max_idle_period) {
1338 unsigned int msec;
1339 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1340 if (msec > 100)
1341 msec -= 100;
1342 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1343 wnm_bss_keep_alive, wpa_s, NULL);
1344 }
1345#endif /* CONFIG_SME */
1346}
1347
1348
1349static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1350 const u8 *ies, size_t ies_len)
1351{
1352 struct ieee802_11_elems elems;
1353
1354 if (ies == NULL)
1355 return;
1356
1357 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1358 return;
1359
1360#ifdef CONFIG_SME
1361 if (elems.bss_max_idle_period) {
1362 unsigned int msec;
1363 wpa_s->sme.bss_max_idle_period =
1364 WPA_GET_LE16(elems.bss_max_idle_period);
1365 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1366 "TU)%s", wpa_s->sme.bss_max_idle_period,
1367 (elems.bss_max_idle_period[2] & 0x01) ?
1368 " (protected keep-live required)" : "");
1369 if (wpa_s->sme.bss_max_idle_period == 0)
1370 wpa_s->sme.bss_max_idle_period = 1;
1371 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1372 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1373 /* msec times 1000 */
1374 msec = wpa_s->sme.bss_max_idle_period * 1024;
1375 if (msec > 100)
1376 msec -= 100;
1377 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1378 wnm_bss_keep_alive, wpa_s,
1379 NULL);
1380 }
1381 }
1382#endif /* CONFIG_SME */
1383}
1384
1385#endif /* CONFIG_WNM */
1386
1387
1388void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1389{
1390#ifdef CONFIG_WNM
1391 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1392#endif /* CONFIG_WNM */
1393}
1394
1395
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001396static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1397 union wpa_event_data *data)
1398{
1399 int l, len, found = 0, wpa_found, rsn_found;
1400 const u8 *p;
1401
1402 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1403 if (data->assoc_info.req_ies)
1404 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1405 data->assoc_info.req_ies_len);
1406 if (data->assoc_info.resp_ies) {
1407 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1408 data->assoc_info.resp_ies_len);
1409#ifdef CONFIG_TDLS
1410 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1411 data->assoc_info.resp_ies_len);
1412#endif /* CONFIG_TDLS */
Dmitry Shmidt04949592012-07-19 12:16:46 -07001413#ifdef CONFIG_WNM
1414 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1415 data->assoc_info.resp_ies_len);
1416#endif /* CONFIG_WNM */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001417 }
1418 if (data->assoc_info.beacon_ies)
1419 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1420 data->assoc_info.beacon_ies,
1421 data->assoc_info.beacon_ies_len);
1422 if (data->assoc_info.freq)
1423 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1424 data->assoc_info.freq);
1425
1426 p = data->assoc_info.req_ies;
1427 l = data->assoc_info.req_ies_len;
1428
1429 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1430 while (p && l >= 2) {
1431 len = p[1] + 2;
1432 if (len > l) {
1433 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1434 p, l);
1435 break;
1436 }
1437 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1438 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1439 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1440 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1441 break;
1442 found = 1;
1443 wpa_find_assoc_pmkid(wpa_s);
1444 break;
1445 }
1446 l -= len;
1447 p += len;
1448 }
1449 if (!found && data->assoc_info.req_ies)
1450 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1451
1452#ifdef CONFIG_IEEE80211R
1453#ifdef CONFIG_SME
1454 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1455 u8 bssid[ETH_ALEN];
1456 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1457 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1458 data->assoc_info.resp_ies,
1459 data->assoc_info.resp_ies_len,
1460 bssid) < 0) {
1461 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1462 "Reassociation Response failed");
1463 wpa_supplicant_deauthenticate(
1464 wpa_s, WLAN_REASON_INVALID_IE);
1465 return -1;
1466 }
1467 }
1468
1469 p = data->assoc_info.resp_ies;
1470 l = data->assoc_info.resp_ies_len;
1471
1472#ifdef CONFIG_WPS_STRICT
1473 if (p && wpa_s->current_ssid &&
1474 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1475 struct wpabuf *wps;
1476 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1477 if (wps == NULL) {
1478 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1479 "include WPS IE in (Re)Association Response");
1480 return -1;
1481 }
1482
1483 if (wps_validate_assoc_resp(wps) < 0) {
1484 wpabuf_free(wps);
1485 wpa_supplicant_deauthenticate(
1486 wpa_s, WLAN_REASON_INVALID_IE);
1487 return -1;
1488 }
1489 wpabuf_free(wps);
1490 }
1491#endif /* CONFIG_WPS_STRICT */
1492
1493 /* Go through the IEs and make a copy of the MDIE, if present. */
1494 while (p && l >= 2) {
1495 len = p[1] + 2;
1496 if (len > l) {
1497 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1498 p, l);
1499 break;
1500 }
1501 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1502 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1503 wpa_s->sme.ft_used = 1;
1504 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1505 MOBILITY_DOMAIN_ID_LEN);
1506 break;
1507 }
1508 l -= len;
1509 p += len;
1510 }
1511#endif /* CONFIG_SME */
1512
1513 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1514 data->assoc_info.resp_ies_len);
1515#endif /* CONFIG_IEEE80211R */
1516
1517 /* WPA/RSN IE from Beacon/ProbeResp */
1518 p = data->assoc_info.beacon_ies;
1519 l = data->assoc_info.beacon_ies_len;
1520
1521 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1522 */
1523 wpa_found = rsn_found = 0;
1524 while (p && l >= 2) {
1525 len = p[1] + 2;
1526 if (len > l) {
1527 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1528 p, l);
1529 break;
1530 }
1531 if (!wpa_found &&
1532 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1533 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1534 wpa_found = 1;
1535 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1536 }
1537
1538 if (!rsn_found &&
1539 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1540 rsn_found = 1;
1541 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1542 }
1543
1544 l -= len;
1545 p += len;
1546 }
1547
1548 if (!wpa_found && data->assoc_info.beacon_ies)
1549 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1550 if (!rsn_found && data->assoc_info.beacon_ies)
1551 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1552 if (wpa_found || rsn_found)
1553 wpa_s->ap_ies_from_associnfo = 1;
1554
Jouni Malinen87fd2792011-05-16 18:35:42 +03001555 if (wpa_s->assoc_freq && data->assoc_info.freq &&
1556 wpa_s->assoc_freq != data->assoc_info.freq) {
1557 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1558 "%u to %u MHz",
1559 wpa_s->assoc_freq, data->assoc_info.freq);
1560 wpa_supplicant_update_scan_results(wpa_s);
1561 }
1562
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001563 wpa_s->assoc_freq = data->assoc_info.freq;
1564
1565 return 0;
1566}
1567
1568
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001569static struct wpa_bss * wpa_supplicant_get_new_bss(
1570 struct wpa_supplicant *wpa_s, const u8 *bssid)
1571{
1572 struct wpa_bss *bss = NULL;
1573 struct wpa_ssid *ssid = wpa_s->current_ssid;
1574
1575 if (ssid->ssid_len > 0)
1576 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
1577 if (!bss)
1578 bss = wpa_bss_get_bssid(wpa_s, bssid);
1579
1580 return bss;
1581}
1582
1583
1584static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
1585{
1586 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
1587
1588 if (!wpa_s->current_bss || !wpa_s->current_ssid)
1589 return -1;
1590
1591 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
1592 return 0;
1593
1594 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
1595 WPA_IE_VENDOR_TYPE);
1596 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
1597
1598 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1599 bss_wpa ? 2 + bss_wpa[1] : 0) ||
1600 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1601 bss_rsn ? 2 + bss_rsn[1] : 0))
1602 return -1;
1603
1604 return 0;
1605}
1606
1607
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001608static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1609 union wpa_event_data *data)
1610{
1611 u8 bssid[ETH_ALEN];
1612 int ft_completed;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001613 struct wpa_driver_capa capa;
1614
1615#ifdef CONFIG_AP
1616 if (wpa_s->ap_iface) {
1617 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1618 data->assoc_info.addr,
1619 data->assoc_info.req_ies,
1620 data->assoc_info.req_ies_len,
1621 data->assoc_info.reassoc);
1622 return;
1623 }
1624#endif /* CONFIG_AP */
1625
1626 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1627 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1628 return;
1629
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001630 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
1631 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
1632 wpa_supplicant_disassociate(
1633 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1634 return;
1635 }
1636
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001637 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001638 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001639 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1640 MACSTR, MAC2STR(bssid));
1641 random_add_randomness(bssid, ETH_ALEN);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001642 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1643 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001644 wpas_notify_bssid_changed(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001645
1646 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1647 wpa_clear_keys(wpa_s, bssid);
1648 }
1649 if (wpa_supplicant_select_config(wpa_s) < 0) {
1650 wpa_supplicant_disassociate(
1651 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1652 return;
1653 }
1654 if (wpa_s->current_ssid) {
1655 struct wpa_bss *bss = NULL;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001656
1657 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
1658 if (!bss) {
1659 wpa_supplicant_update_scan_results(wpa_s);
1660
1661 /* Get the BSS from the new scan results */
1662 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
1663 }
1664
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001665 if (bss)
1666 wpa_s->current_bss = bss;
1667 }
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001668
1669 if (wpa_s->conf->ap_scan == 1 &&
1670 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
1671 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0)
1672 wpa_msg(wpa_s, MSG_WARNING,
1673 "WPA/RSN IEs not updated");
1674 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001675 }
1676
1677#ifdef CONFIG_SME
1678 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1679 wpa_s->sme.prev_bssid_set = 1;
1680#endif /* CONFIG_SME */
1681
1682 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1683 if (wpa_s->current_ssid) {
1684 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1685 * initialized before association, but for other modes,
1686 * initialize PC/SC here, if the current configuration needs
1687 * smartcard or SIM/USIM. */
1688 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1689 }
1690 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1691 if (wpa_s->l2)
1692 l2_packet_notify_auth_start(wpa_s->l2);
1693
1694 /*
1695 * Set portEnabled first to FALSE in order to get EAP state machine out
1696 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1697 * state machine may transit to AUTHENTICATING state based on obsolete
1698 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1699 * AUTHENTICATED without ever giving chance to EAP state machine to
1700 * reset the state.
1701 */
1702 if (!ft_completed) {
1703 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1704 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1705 }
1706 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1707 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1708 /* 802.1X::portControl = Auto */
1709 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1710 wpa_s->eapol_received = 0;
1711 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1712 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1713 (wpa_s->current_ssid &&
1714 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1715 wpa_supplicant_cancel_auth_timeout(wpa_s);
1716 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1717 } else if (!ft_completed) {
1718 /* Timeout for receiving the first EAPOL packet */
1719 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1720 }
1721 wpa_supplicant_cancel_scan(wpa_s);
1722
1723 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1724 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1725 /*
1726 * We are done; the driver will take care of RSN 4-way
1727 * handshake.
1728 */
1729 wpa_supplicant_cancel_auth_timeout(wpa_s);
1730 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1731 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1732 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1733 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1734 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1735 /*
1736 * The driver will take care of RSN 4-way handshake, so we need
1737 * to allow EAPOL supplicant to complete its work without
1738 * waiting for WPA supplicant.
1739 */
1740 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1741 } else if (ft_completed) {
1742 /*
1743 * FT protocol completed - make sure EAPOL state machine ends
1744 * up in authenticated.
1745 */
1746 wpa_supplicant_cancel_auth_timeout(wpa_s);
1747 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1748 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1749 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1750 }
1751
1752 if (wpa_s->pending_eapol_rx) {
1753 struct os_time now, age;
1754 os_get_time(&now);
1755 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1756 if (age.sec == 0 && age.usec < 100000 &&
1757 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1758 0) {
1759 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
1760 "frame that was received just before "
1761 "association notification");
1762 wpa_supplicant_rx_eapol(
1763 wpa_s, wpa_s->pending_eapol_rx_src,
1764 wpabuf_head(wpa_s->pending_eapol_rx),
1765 wpabuf_len(wpa_s->pending_eapol_rx));
1766 }
1767 wpabuf_free(wpa_s->pending_eapol_rx);
1768 wpa_s->pending_eapol_rx = NULL;
1769 }
1770
1771 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1772 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
1773 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1774 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
1775 /* Set static WEP keys again */
1776 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
1777 }
1778
1779#ifdef CONFIG_IBSS_RSN
1780 if (wpa_s->current_ssid &&
1781 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
1782 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
1783 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
1784 wpa_s->ibss_rsn == NULL) {
1785 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
1786 if (!wpa_s->ibss_rsn) {
1787 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
1788 wpa_supplicant_deauthenticate(
1789 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1790 return;
1791 }
1792
1793 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
1794 }
1795#endif /* CONFIG_IBSS_RSN */
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001796
1797 wpas_wps_notify_assoc(wpa_s, bssid);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001798}
1799
1800
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001801static int disconnect_reason_recoverable(u16 reason_code)
1802{
1803 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
1804 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
1805 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
1806}
1807
1808
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001809static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001810 u16 reason_code,
1811 int locally_generated)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001812{
1813 const u8 *bssid;
Jouni Malinen2b89da82012-08-31 22:04:41 +03001814
1815 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1816 /*
1817 * At least Host AP driver and a Prism3 card seemed to be
1818 * generating streams of disconnected events when configuring
1819 * IBSS for WPA-None. Ignore them for now.
1820 */
1821 return;
1822 }
1823
1824 bssid = wpa_s->bssid;
1825 if (is_zero_ether_addr(bssid))
1826 bssid = wpa_s->pending_bssid;
1827
1828 if (!is_zero_ether_addr(bssid) ||
1829 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1830 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
1831 " reason=%d%s",
1832 MAC2STR(bssid), reason_code,
1833 locally_generated ? " locally_generated=1" : "");
1834 }
1835}
1836
1837
1838static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
1839 u16 reason_code,
1840 int locally_generated)
1841{
1842 const u8 *bssid;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001843 int authenticating;
1844 u8 prev_pending_bssid[ETH_ALEN];
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001845 struct wpa_bss *fast_reconnect = NULL;
1846 struct wpa_ssid *fast_reconnect_ssid = NULL;
Jouni Malinenf8a26a82012-09-01 17:20:27 +03001847 struct wpa_ssid *last_ssid;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001848
1849 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
1850 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
1851
1852 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1853 /*
1854 * At least Host AP driver and a Prism3 card seemed to be
1855 * generating streams of disconnected events when configuring
1856 * IBSS for WPA-None. Ignore them for now.
1857 */
1858 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
1859 "IBSS/WPA-None mode");
1860 return;
1861 }
1862
1863 if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
1864 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1865 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
1866 "pre-shared key may be incorrect");
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001867 wpas_auth_failed(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001868 }
1869 if (!wpa_s->auto_reconnect_disabled ||
1870 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001871 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
1872 "reconnect (wps=%d wpa_state=%d)",
1873 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
1874 wpa_s->wpa_state);
1875 if (wpa_s->wpa_state == WPA_COMPLETED &&
1876 wpa_s->current_ssid &&
1877 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001878 !locally_generated &&
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001879 disconnect_reason_recoverable(reason_code)) {
1880 /*
1881 * It looks like the AP has dropped association with
1882 * us, but could allow us to get back in. Try to
1883 * reconnect to the same BSS without full scan to save
1884 * time for some common cases.
1885 */
1886 fast_reconnect = wpa_s->current_bss;
1887 fast_reconnect_ssid = wpa_s->current_ssid;
1888 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001889#ifdef ANDROID
Dmitry Shmidt43007fd2011-04-11 15:58:40 -07001890 wpa_supplicant_req_scan(wpa_s, 0, 500000);
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001891#else
1892 wpa_supplicant_req_scan(wpa_s, 0, 100000);
1893#endif
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001894 else
1895 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
1896 "immediate scan");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001897 } else {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001898 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001899 "try to re-connect");
1900 wpa_s->reassociate = 0;
1901 wpa_s->disconnected = 1;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001902 wpa_supplicant_cancel_sched_scan(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001903 }
1904 bssid = wpa_s->bssid;
1905 if (is_zero_ether_addr(bssid))
1906 bssid = wpa_s->pending_bssid;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001907 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
1908 wpas_connection_failed(wpa_s, bssid);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001909 wpa_sm_notify_disassoc(wpa_s->wpa);
Dmitry Shmidt04949592012-07-19 12:16:46 -07001910 if (locally_generated)
1911 wpa_s->disconnect_reason = -reason_code;
1912 else
1913 wpa_s->disconnect_reason = reason_code;
1914 wpas_notify_disconnect_reason(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001915 if (wpa_supplicant_dynamic_keys(wpa_s)) {
1916 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
1917 wpa_s->keys_cleared = 0;
1918 wpa_clear_keys(wpa_s, wpa_s->bssid);
1919 }
Jouni Malinenf8a26a82012-09-01 17:20:27 +03001920 last_ssid = wpa_s->current_ssid;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001921 wpa_supplicant_mark_disassoc(wpa_s);
1922
Jouni Malinenf8a26a82012-09-01 17:20:27 +03001923 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001924 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
Jouni Malinenf8a26a82012-09-01 17:20:27 +03001925 wpa_s->current_ssid = last_ssid;
1926 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001927
1928 if (fast_reconnect) {
1929#ifndef CONFIG_NO_SCAN_PROCESSING
1930 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
1931 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
1932 fast_reconnect_ssid) < 0) {
1933 /* Recover through full scan */
1934 wpa_supplicant_req_scan(wpa_s, 0, 100000);
1935 }
1936#endif /* CONFIG_NO_SCAN_PROCESSING */
1937 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001938}
1939
1940
1941#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001942void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001943{
1944 struct wpa_supplicant *wpa_s = eloop_ctx;
1945
1946 if (!wpa_s->pending_mic_error_report)
1947 return;
1948
1949 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
1950 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
1951 wpa_s->pending_mic_error_report = 0;
1952}
1953#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1954
1955
1956static void
1957wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
1958 union wpa_event_data *data)
1959{
1960 int pairwise;
1961 struct os_time t;
1962
1963 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
1964 pairwise = (data && data->michael_mic_failure.unicast);
1965 os_get_time(&t);
1966 if ((wpa_s->last_michael_mic_error &&
1967 t.sec - wpa_s->last_michael_mic_error <= 60) ||
1968 wpa_s->pending_mic_error_report) {
1969 if (wpa_s->pending_mic_error_report) {
1970 /*
1971 * Send the pending MIC error report immediately since
1972 * we are going to start countermeasures and AP better
1973 * do the same.
1974 */
1975 wpa_sm_key_request(wpa_s->wpa, 1,
1976 wpa_s->pending_mic_error_pairwise);
1977 }
1978
1979 /* Send the new MIC error report immediately since we are going
1980 * to start countermeasures and AP better do the same.
1981 */
1982 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1983
1984 /* initialize countermeasures */
1985 wpa_s->countermeasures = 1;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001986
1987 wpa_blacklist_add(wpa_s, wpa_s->bssid);
1988
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001989 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
1990
1991 /*
1992 * Need to wait for completion of request frame. We do not get
1993 * any callback for the message completion, so just wait a
1994 * short while and hope for the best. */
1995 os_sleep(0, 10000);
1996
1997 wpa_drv_set_countermeasures(wpa_s, 1);
1998 wpa_supplicant_deauthenticate(wpa_s,
1999 WLAN_REASON_MICHAEL_MIC_FAILURE);
2000 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2001 wpa_s, NULL);
2002 eloop_register_timeout(60, 0,
2003 wpa_supplicant_stop_countermeasures,
2004 wpa_s, NULL);
2005 /* TODO: mark the AP rejected for 60 second. STA is
2006 * allowed to associate with another AP.. */
2007 } else {
2008#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2009 if (wpa_s->mic_errors_seen) {
2010 /*
2011 * Reduce the effectiveness of Michael MIC error
2012 * reports as a means for attacking against TKIP if
2013 * more than one MIC failure is noticed with the same
2014 * PTK. We delay the transmission of the reports by a
2015 * random time between 0 and 60 seconds in order to
2016 * force the attacker wait 60 seconds before getting
2017 * the information on whether a frame resulted in a MIC
2018 * failure.
2019 */
2020 u8 rval[4];
2021 int sec;
2022
2023 if (os_get_random(rval, sizeof(rval)) < 0)
2024 sec = os_random() % 60;
2025 else
2026 sec = WPA_GET_BE32(rval) % 60;
2027 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2028 "report %d seconds", sec);
2029 wpa_s->pending_mic_error_report = 1;
2030 wpa_s->pending_mic_error_pairwise = pairwise;
2031 eloop_cancel_timeout(
2032 wpa_supplicant_delayed_mic_error_report,
2033 wpa_s, NULL);
2034 eloop_register_timeout(
2035 sec, os_random() % 1000000,
2036 wpa_supplicant_delayed_mic_error_report,
2037 wpa_s, NULL);
2038 } else {
2039 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2040 }
2041#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2042 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2043#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2044 }
2045 wpa_s->last_michael_mic_error = t.sec;
2046 wpa_s->mic_errors_seen++;
2047}
2048
2049
2050#ifdef CONFIG_TERMINATE_ONLASTIF
2051static int any_interfaces(struct wpa_supplicant *head)
2052{
2053 struct wpa_supplicant *wpa_s;
2054
2055 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2056 if (!wpa_s->interface_removed)
2057 return 1;
2058 return 0;
2059}
2060#endif /* CONFIG_TERMINATE_ONLASTIF */
2061
2062
2063static void
2064wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2065 union wpa_event_data *data)
2066{
2067 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2068 return;
2069
2070 switch (data->interface_status.ievent) {
2071 case EVENT_INTERFACE_ADDED:
2072 if (!wpa_s->interface_removed)
2073 break;
2074 wpa_s->interface_removed = 0;
2075 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2076 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2077 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2078 "driver after interface was added");
2079 }
Dmitry Shmidt04949592012-07-19 12:16:46 -07002080 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002081 break;
2082 case EVENT_INTERFACE_REMOVED:
2083 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2084 wpa_s->interface_removed = 1;
2085 wpa_supplicant_mark_disassoc(wpa_s);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002086 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002087 l2_packet_deinit(wpa_s->l2);
2088 wpa_s->l2 = NULL;
2089#ifdef CONFIG_IBSS_RSN
2090 ibss_rsn_deinit(wpa_s->ibss_rsn);
2091 wpa_s->ibss_rsn = NULL;
2092#endif /* CONFIG_IBSS_RSN */
2093#ifdef CONFIG_TERMINATE_ONLASTIF
2094 /* check if last interface */
2095 if (!any_interfaces(wpa_s->global->ifaces))
2096 eloop_terminate();
2097#endif /* CONFIG_TERMINATE_ONLASTIF */
2098 break;
2099 }
2100}
2101
2102
2103#ifdef CONFIG_PEERKEY
2104static void
2105wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2106 union wpa_event_data *data)
2107{
2108 if (data == NULL)
2109 return;
2110 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2111}
2112#endif /* CONFIG_PEERKEY */
2113
2114
2115#ifdef CONFIG_TDLS
2116static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2117 union wpa_event_data *data)
2118{
2119 if (data == NULL)
2120 return;
2121 switch (data->tdls.oper) {
2122 case TDLS_REQUEST_SETUP:
2123 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2124 break;
2125 case TDLS_REQUEST_TEARDOWN:
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002126 wpa_tdls_send_teardown(wpa_s->wpa, data->tdls.peer,
2127 data->tdls.reason_code);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002128 break;
2129 }
2130}
2131#endif /* CONFIG_TDLS */
2132
2133
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002134#ifdef CONFIG_IEEE80211V
2135static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2136 union wpa_event_data *data)
2137{
2138 if (data == NULL)
2139 return;
2140 switch (data->wnm.oper) {
2141 case WNM_OPER_SLEEP:
2142 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2143 "(action=%d, intval=%d)",
2144 data->wnm.sleep_action, data->wnm.sleep_intval);
2145 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2146 data->wnm.sleep_intval);
2147 break;
2148 }
2149}
2150#endif /* CONFIG_IEEE80211V */
2151
2152
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002153#ifdef CONFIG_IEEE80211R
2154static void
2155wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2156 union wpa_event_data *data)
2157{
2158 if (data == NULL)
2159 return;
2160
2161 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2162 data->ft_ies.ies_len,
2163 data->ft_ies.ft_action,
2164 data->ft_ies.target_ap,
2165 data->ft_ies.ric_ies,
2166 data->ft_ies.ric_ies_len) < 0) {
2167 /* TODO: prevent MLME/driver from trying to associate? */
2168 }
2169}
2170#endif /* CONFIG_IEEE80211R */
2171
2172
2173#ifdef CONFIG_IBSS_RSN
2174static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2175 union wpa_event_data *data)
2176{
2177 struct wpa_ssid *ssid;
2178 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2179 return;
2180 if (data == NULL)
2181 return;
2182 ssid = wpa_s->current_ssid;
2183 if (ssid == NULL)
2184 return;
2185 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2186 return;
2187
2188 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2189}
2190#endif /* CONFIG_IBSS_RSN */
2191
2192
2193#ifdef CONFIG_IEEE80211R
2194static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2195 size_t len)
2196{
2197 const u8 *sta_addr, *target_ap_addr;
2198 u16 status;
2199
2200 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2201 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2202 return; /* only SME case supported for now */
2203 if (len < 1 + 2 * ETH_ALEN + 2)
2204 return;
2205 if (data[0] != 2)
2206 return; /* Only FT Action Response is supported for now */
2207 sta_addr = data + 1;
2208 target_ap_addr = data + 1 + ETH_ALEN;
2209 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2210 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2211 MACSTR " TargetAP " MACSTR " status %u",
2212 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2213
2214 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2215 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2216 " in FT Action Response", MAC2STR(sta_addr));
2217 return;
2218 }
2219
2220 if (status) {
2221 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2222 "failure (status code %d)", status);
2223 /* TODO: report error to FT code(?) */
2224 return;
2225 }
2226
2227 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2228 len - (1 + 2 * ETH_ALEN + 2), 1,
2229 target_ap_addr, NULL, 0) < 0)
2230 return;
2231
2232#ifdef CONFIG_SME
2233 {
2234 struct wpa_bss *bss;
2235 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2236 if (bss)
2237 wpa_s->sme.freq = bss->freq;
2238 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2239 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2240 WLAN_AUTH_FT);
2241 }
2242#endif /* CONFIG_SME */
2243}
2244#endif /* CONFIG_IEEE80211R */
2245
2246
2247static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2248 struct unprot_deauth *e)
2249{
2250#ifdef CONFIG_IEEE80211W
2251 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2252 "dropped: " MACSTR " -> " MACSTR
2253 " (reason code %u)",
2254 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2255 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2256#endif /* CONFIG_IEEE80211W */
2257}
2258
2259
2260static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2261 struct unprot_disassoc *e)
2262{
2263#ifdef CONFIG_IEEE80211W
2264 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2265 "dropped: " MACSTR " -> " MACSTR
2266 " (reason code %u)",
2267 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2268 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2269#endif /* CONFIG_IEEE80211W */
2270}
2271
2272
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002273static void wnm_action_rx(struct wpa_supplicant *wpa_s, struct rx_action *rx)
2274{
2275 u8 action, mode;
2276 const u8 *pos, *end;
2277
2278 if (rx->data == NULL || rx->len == 0)
2279 return;
2280
2281 pos = rx->data;
2282 end = pos + rx->len;
2283 action = *pos++;
2284
2285 wpa_printf(MSG_DEBUG, "WNM: RX action %u from " MACSTR,
2286 action, MAC2STR(rx->sa));
2287 switch (action) {
2288 case WNM_BSS_TRANS_MGMT_REQ:
2289 if (pos + 5 > end)
2290 break;
2291 wpa_printf(MSG_DEBUG, "WNM: BSS Transition Management "
2292 "Request: dialog_token=%u request_mode=0x%x "
2293 "disassoc_timer=%u validity_interval=%u",
2294 pos[0], pos[1], WPA_GET_LE16(pos + 2), pos[4]);
2295 mode = pos[1];
2296 pos += 5;
2297 if (mode & 0x08)
2298 pos += 12; /* BSS Termination Duration */
2299 if (mode & 0x10) {
2300 char url[256];
2301 if (pos + 1 > end || pos + 1 + pos[0] > end) {
2302 wpa_printf(MSG_DEBUG, "WNM: Invalid BSS "
2303 "Transition Management Request "
2304 "(URL)");
2305 break;
2306 }
2307 os_memcpy(url, pos + 1, pos[0]);
2308 url[pos[0]] = '\0';
2309 wpa_msg(wpa_s, MSG_INFO, "WNM: ESS Disassociation "
2310 "Imminent - session_info_url=%s", url);
2311 }
2312 break;
2313 }
2314}
2315
2316
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002317void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
2318 union wpa_event_data *data)
2319{
2320 struct wpa_supplicant *wpa_s = ctx;
2321 u16 reason_code = 0;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002322 int locally_generated = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002323
2324 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
2325 event != EVENT_INTERFACE_ENABLED &&
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002326 event != EVENT_INTERFACE_STATUS &&
2327 event != EVENT_SCHED_SCAN_STOPPED) {
2328 wpa_dbg(wpa_s, MSG_DEBUG,
2329 "Ignore event %s (%d) while interface is disabled",
2330 event_to_string(event), event);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002331 return;
2332 }
2333
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002334#ifndef CONFIG_NO_STDOUT_DEBUG
2335{
2336 int level = MSG_DEBUG;
2337
Dmitry Shmidt04949592012-07-19 12:16:46 -07002338 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002339 const struct ieee80211_hdr *hdr;
2340 u16 fc;
2341 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
2342 fc = le_to_host16(hdr->frame_control);
2343 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2344 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
2345 level = MSG_EXCESSIVE;
2346 }
2347
2348 wpa_dbg(wpa_s, level, "Event %s (%d) received",
2349 event_to_string(event), event);
2350}
2351#endif /* CONFIG_NO_STDOUT_DEBUG */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002352
2353 switch (event) {
2354 case EVENT_AUTH:
2355 sme_event_auth(wpa_s, data);
2356 break;
2357 case EVENT_ASSOC:
2358 wpa_supplicant_event_assoc(wpa_s, data);
2359 break;
2360 case EVENT_DISASSOC:
2361 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2362 if (data) {
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002363 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2364 data->disassoc_info.reason_code,
2365 data->disassoc_info.locally_generated ?
2366 " (locally generated)" : "");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002367 if (data->disassoc_info.addr)
2368 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2369 MAC2STR(data->disassoc_info.addr));
2370 }
2371#ifdef CONFIG_AP
2372 if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
2373 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2374 data->disassoc_info.addr);
2375 break;
2376 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002377 if (wpa_s->ap_iface) {
2378 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in "
2379 "AP mode");
2380 break;
2381 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002382#endif /* CONFIG_AP */
2383 if (data) {
2384 reason_code = data->disassoc_info.reason_code;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002385 locally_generated =
2386 data->disassoc_info.locally_generated;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002387 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2388 data->disassoc_info.ie,
2389 data->disassoc_info.ie_len);
2390#ifdef CONFIG_P2P
2391 wpas_p2p_disassoc_notif(
2392 wpa_s, data->disassoc_info.addr, reason_code,
2393 data->disassoc_info.ie,
Dmitry Shmidt04949592012-07-19 12:16:46 -07002394 data->disassoc_info.ie_len,
2395 locally_generated);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002396#endif /* CONFIG_P2P */
2397 }
2398 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2399 sme_event_disassoc(wpa_s, data);
2400 /* fall through */
2401 case EVENT_DEAUTH:
2402 if (event == EVENT_DEAUTH) {
2403 wpa_dbg(wpa_s, MSG_DEBUG,
2404 "Deauthentication notification");
2405 if (data) {
2406 reason_code = data->deauth_info.reason_code;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002407 locally_generated =
2408 data->deauth_info.locally_generated;
2409 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2410 data->deauth_info.reason_code,
2411 data->deauth_info.locally_generated ?
2412 " (locally generated)" : "");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002413 if (data->deauth_info.addr) {
2414 wpa_dbg(wpa_s, MSG_DEBUG, " * address "
2415 MACSTR,
2416 MAC2STR(data->deauth_info.
2417 addr));
2418 }
2419 wpa_hexdump(MSG_DEBUG,
2420 "Deauthentication frame IE(s)",
2421 data->deauth_info.ie,
2422 data->deauth_info.ie_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002423 }
2424 }
2425#ifdef CONFIG_AP
2426 if (wpa_s->ap_iface && data && data->deauth_info.addr) {
2427 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2428 data->deauth_info.addr);
2429 break;
2430 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002431 if (wpa_s->ap_iface) {
2432 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in "
2433 "AP mode");
2434 break;
2435 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002436#endif /* CONFIG_AP */
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08002437 wpa_supplicant_event_disassoc(wpa_s, reason_code,
2438 locally_generated);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002439 if (reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
2440 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
2441 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
2442 eapol_sm_failed(wpa_s->eapol)))
2443 wpas_auth_failed(wpa_s);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002444#ifdef CONFIG_P2P
2445 if (event == EVENT_DEAUTH && data) {
Jouni Malinen2b89da82012-08-31 22:04:41 +03002446 if (wpas_p2p_deauth_notif(wpa_s,
2447 data->deauth_info.addr,
2448 reason_code,
2449 data->deauth_info.ie,
2450 data->deauth_info.ie_len,
2451 locally_generated) > 0) {
2452 /*
2453 * The interface was removed, so cannot
2454 * continue processing any additional
2455 * operations after this.
2456 */
2457 break;
2458 }
Dmitry Shmidt04949592012-07-19 12:16:46 -07002459 }
2460#endif /* CONFIG_P2P */
Jouni Malinen2b89da82012-08-31 22:04:41 +03002461 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
2462 locally_generated);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002463 break;
2464 case EVENT_MICHAEL_MIC_FAILURE:
2465 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
2466 break;
2467#ifndef CONFIG_NO_SCAN_PROCESSING
2468 case EVENT_SCAN_RESULTS:
2469 wpa_supplicant_event_scan_results(wpa_s, data);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002470#ifdef CONFIG_P2P
2471 if (wpa_s->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
2472 wpa_s->global->p2p != NULL &&
2473 wpa_s->wpa_state != WPA_AUTHENTICATING &&
2474 wpa_s->wpa_state != WPA_ASSOCIATING) {
2475 wpa_s->p2p_cb_on_scan_complete = 0;
2476 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
2477 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
2478 "continued after scan result processing");
2479 }
2480 }
2481#endif /* CONFIG_P2P */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002482 break;
2483#endif /* CONFIG_NO_SCAN_PROCESSING */
2484 case EVENT_ASSOCINFO:
2485 wpa_supplicant_event_associnfo(wpa_s, data);
2486 break;
2487 case EVENT_INTERFACE_STATUS:
2488 wpa_supplicant_event_interface_status(wpa_s, data);
2489 break;
2490 case EVENT_PMKID_CANDIDATE:
2491 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
2492 break;
2493#ifdef CONFIG_PEERKEY
2494 case EVENT_STKSTART:
2495 wpa_supplicant_event_stkstart(wpa_s, data);
2496 break;
2497#endif /* CONFIG_PEERKEY */
2498#ifdef CONFIG_TDLS
2499 case EVENT_TDLS:
2500 wpa_supplicant_event_tdls(wpa_s, data);
2501 break;
2502#endif /* CONFIG_TDLS */
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002503#ifdef CONFIG_IEEE80211V
2504 case EVENT_WNM:
2505 wpa_supplicant_event_wnm(wpa_s, data);
2506 break;
2507#endif /* CONFIG_IEEE80211V */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002508#ifdef CONFIG_IEEE80211R
2509 case EVENT_FT_RESPONSE:
2510 wpa_supplicant_event_ft_response(wpa_s, data);
2511 break;
2512#endif /* CONFIG_IEEE80211R */
2513#ifdef CONFIG_IBSS_RSN
2514 case EVENT_IBSS_RSN_START:
2515 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
2516 break;
2517#endif /* CONFIG_IBSS_RSN */
2518 case EVENT_ASSOC_REJECT:
2519 if (data->assoc_reject.bssid)
2520 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2521 "bssid=" MACSTR " status_code=%u",
2522 MAC2STR(data->assoc_reject.bssid),
2523 data->assoc_reject.status_code);
2524 else
2525 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2526 "status_code=%u",
2527 data->assoc_reject.status_code);
2528 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2529 sme_event_assoc_reject(wpa_s, data);
Dmitry Shmidt98f9e762012-05-30 11:18:46 -07002530#ifdef ANDROID_P2P
Irfan Sheriff2fb835a2012-06-18 09:39:07 -07002531#ifdef CONFIG_P2P
2532 else if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) {
Irfan Sheriff7db4ef72012-06-18 09:39:07 -07002533 if(!wpa_s->current_ssid) {
2534 wpa_printf(MSG_ERROR, "current_ssid == NULL");
2535 break;
2536 }
2537 /* If assoc reject is reported by the driver, then avoid
2538 * waiting for the authentication timeout. Cancel the
2539 * authentication timeout and retry the assoc.
2540 */
2541 if(wpa_s->current_ssid->assoc_retry++ < 5) {
2542 wpa_printf(MSG_ERROR, "Retrying assoc: %d ",
2543 wpa_s->current_ssid->assoc_retry);
2544 wpa_supplicant_cancel_auth_timeout(wpa_s);
Dmitry Shmidt98f9e762012-05-30 11:18:46 -07002545
Irfan Sheriff7db4ef72012-06-18 09:39:07 -07002546 /* Clear the states */
2547 wpa_sm_notify_disassoc(wpa_s->wpa);
2548 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2549
2550 wpa_s->reassociate = 1;
2551 wpa_supplicant_req_scan(wpa_s, 1, 0);
2552 } else {
2553 /* If we ASSOC_REJECT's hits threshold, disable the
2554 * network
2555 */
2556 wpa_printf(MSG_ERROR, "Assoc retry threshold reached. "
2557 "Disabling the network");
Irfan Sheriff2fb835a2012-06-18 09:39:07 -07002558 wpa_s->current_ssid->assoc_retry = 0;
Irfan Sheriff7db4ef72012-06-18 09:39:07 -07002559 wpa_supplicant_disable_network(wpa_s, wpa_s->current_ssid);
Irfan Sheriff2fb835a2012-06-18 09:39:07 -07002560 wpas_p2p_group_remove(wpa_s, wpa_s->ifname);
Irfan Sheriff7db4ef72012-06-18 09:39:07 -07002561 }
2562 }
Irfan Sheriff2fb835a2012-06-18 09:39:07 -07002563#endif
Dmitry Shmidt98f9e762012-05-30 11:18:46 -07002564#endif /* ANDROID_P2P */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002565 break;
2566 case EVENT_AUTH_TIMED_OUT:
2567 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2568 sme_event_auth_timed_out(wpa_s, data);
2569 break;
2570 case EVENT_ASSOC_TIMED_OUT:
2571 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2572 sme_event_assoc_timed_out(wpa_s, data);
2573 break;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002574 case EVENT_TX_STATUS:
2575 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
2576 " type=%d stype=%d",
2577 MAC2STR(data->tx_status.dst),
2578 data->tx_status.type, data->tx_status.stype);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002579#ifdef CONFIG_AP
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002580 if (wpa_s->ap_iface == NULL) {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002581#ifdef CONFIG_OFFCHANNEL
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002582 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2583 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002584 offchannel_send_action_tx_status(
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002585 wpa_s, data->tx_status.dst,
2586 data->tx_status.data,
2587 data->tx_status.data_len,
2588 data->tx_status.ack ?
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002589 OFFCHANNEL_SEND_ACTION_SUCCESS :
2590 OFFCHANNEL_SEND_ACTION_NO_ACK);
2591#endif /* CONFIG_OFFCHANNEL */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002592 break;
2593 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002594#endif /* CONFIG_AP */
2595#ifdef CONFIG_OFFCHANNEL
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002596 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
2597 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
2598 /*
2599 * Catch TX status events for Action frames we sent via group
2600 * interface in GO mode.
2601 */
2602 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2603 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
2604 os_memcmp(wpa_s->parent->pending_action_dst,
2605 data->tx_status.dst, ETH_ALEN) == 0) {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002606 offchannel_send_action_tx_status(
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002607 wpa_s->parent, data->tx_status.dst,
2608 data->tx_status.data,
2609 data->tx_status.data_len,
2610 data->tx_status.ack ?
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002611 OFFCHANNEL_SEND_ACTION_SUCCESS :
2612 OFFCHANNEL_SEND_ACTION_NO_ACK);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002613 break;
2614 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002615#endif /* CONFIG_OFFCHANNEL */
2616#ifdef CONFIG_AP
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002617 switch (data->tx_status.type) {
2618 case WLAN_FC_TYPE_MGMT:
2619 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
2620 data->tx_status.data_len,
2621 data->tx_status.stype,
2622 data->tx_status.ack);
2623 break;
2624 case WLAN_FC_TYPE_DATA:
2625 ap_tx_status(wpa_s, data->tx_status.dst,
2626 data->tx_status.data,
2627 data->tx_status.data_len,
2628 data->tx_status.ack);
2629 break;
2630 }
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002631#endif /* CONFIG_AP */
2632 break;
2633#ifdef CONFIG_AP
2634 case EVENT_EAPOL_TX_STATUS:
2635 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
2636 data->eapol_tx_status.data,
2637 data->eapol_tx_status.data_len,
2638 data->eapol_tx_status.ack);
2639 break;
2640 case EVENT_DRIVER_CLIENT_POLL_OK:
2641 ap_client_poll_ok(wpa_s, data->client_poll.addr);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002642 break;
2643 case EVENT_RX_FROM_UNKNOWN:
2644 if (wpa_s->ap_iface == NULL)
2645 break;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002646 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
2647 data->rx_from_unknown.wds);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002648 break;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002649 case EVENT_CH_SWITCH:
2650 if (!data)
2651 break;
2652 if (!wpa_s->ap_iface) {
2653 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch "
2654 "event in non-AP mode");
2655 break;
2656 }
2657
2658#ifdef CONFIG_AP
2659 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
2660 data->ch_switch.ht_enabled,
2661 data->ch_switch.ch_offset);
2662#endif /* CONFIG_AP */
2663 break;
2664 case EVENT_RX_MGMT: {
2665 u16 fc, stype;
2666 const struct ieee80211_mgmt *mgmt;
2667
2668 mgmt = (const struct ieee80211_mgmt *)
2669 data->rx_mgmt.frame;
2670 fc = le_to_host16(mgmt->frame_control);
2671 stype = WLAN_FC_GET_STYPE(fc);
2672
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002673 if (wpa_s->ap_iface == NULL) {
2674#ifdef CONFIG_P2P
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002675 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2676 data->rx_mgmt.frame_len > 24) {
2677 const u8 *src = mgmt->sa;
2678 const u8 *ie = mgmt->u.probe_req.variable;
2679 size_t ie_len = data->rx_mgmt.frame_len -
2680 (mgmt->u.probe_req.variable -
2681 data->rx_mgmt.frame);
Dmitry Shmidt04949592012-07-19 12:16:46 -07002682 wpas_p2p_probe_req_rx(
2683 wpa_s, src, mgmt->da,
2684 mgmt->bssid, ie, ie_len,
2685 data->rx_mgmt.ssi_signal);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002686 break;
2687 }
2688#endif /* CONFIG_P2P */
2689 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
2690 "management frame in non-AP mode");
2691 break;
2692 }
Dmitry Shmidt04949592012-07-19 12:16:46 -07002693
2694 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2695 data->rx_mgmt.frame_len > 24) {
2696 const u8 *ie = mgmt->u.probe_req.variable;
2697 size_t ie_len = data->rx_mgmt.frame_len -
2698 (mgmt->u.probe_req.variable -
2699 data->rx_mgmt.frame);
2700
2701 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
2702 mgmt->bssid, ie, ie_len,
2703 data->rx_mgmt.ssi_signal);
2704 }
2705
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002706 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
2707 break;
Dmitry Shmidt04949592012-07-19 12:16:46 -07002708 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002709#endif /* CONFIG_AP */
2710 case EVENT_RX_ACTION:
2711 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2712 " Category=%u DataLen=%d freq=%d MHz",
2713 MAC2STR(data->rx_action.sa),
2714 data->rx_action.category, (int) data->rx_action.len,
2715 data->rx_action.freq);
2716#ifdef CONFIG_IEEE80211R
2717 if (data->rx_action.category == WLAN_ACTION_FT) {
2718 ft_rx_action(wpa_s, data->rx_action.data,
2719 data->rx_action.len);
2720 break;
2721 }
2722#endif /* CONFIG_IEEE80211R */
2723#ifdef CONFIG_IEEE80211W
2724#ifdef CONFIG_SME
2725 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) {
2726 sme_sa_query_rx(wpa_s, data->rx_action.sa,
2727 data->rx_action.data,
2728 data->rx_action.len);
2729 break;
2730 }
2731#endif /* CONFIG_SME */
2732#endif /* CONFIG_IEEE80211W */
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07002733#ifdef CONFIG_IEEE80211V
2734 if (data->rx_action.category == WLAN_ACTION_WNM) {
2735 ieee802_11_rx_wnm_action(wpa_s, &data->rx_action);
2736 break;
2737 }
2738#endif /* CONFIG_IEEE80211V */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002739#ifdef CONFIG_GAS
2740 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2741 gas_query_rx(wpa_s->gas, data->rx_action.da,
2742 data->rx_action.sa, data->rx_action.bssid,
2743 data->rx_action.data, data->rx_action.len,
2744 data->rx_action.freq) == 0)
2745 break;
2746#endif /* CONFIG_GAS */
2747 if (data->rx_action.category == WLAN_ACTION_WNM) {
2748 wnm_action_rx(wpa_s, &data->rx_action);
2749 break;
2750 }
2751#ifdef CONFIG_TDLS
2752 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2753 data->rx_action.len >= 4 &&
2754 data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
2755 wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery "
2756 "Response from " MACSTR,
2757 MAC2STR(data->rx_action.sa));
2758 break;
2759 }
2760#endif /* CONFIG_TDLS */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002761#ifdef CONFIG_P2P
2762 wpas_p2p_rx_action(wpa_s, data->rx_action.da,
2763 data->rx_action.sa,
2764 data->rx_action.bssid,
2765 data->rx_action.category,
2766 data->rx_action.data,
2767 data->rx_action.len, data->rx_action.freq);
2768#endif /* CONFIG_P2P */
2769 break;
2770 case EVENT_RX_PROBE_REQ:
2771 if (data->rx_probe_req.sa == NULL ||
2772 data->rx_probe_req.ie == NULL)
2773 break;
2774#ifdef CONFIG_AP
2775 if (wpa_s->ap_iface) {
2776 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
2777 data->rx_probe_req.sa,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002778 data->rx_probe_req.da,
2779 data->rx_probe_req.bssid,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002780 data->rx_probe_req.ie,
Dmitry Shmidt04949592012-07-19 12:16:46 -07002781 data->rx_probe_req.ie_len,
2782 data->rx_probe_req.ssi_signal);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002783 break;
2784 }
2785#endif /* CONFIG_AP */
2786#ifdef CONFIG_P2P
2787 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002788 data->rx_probe_req.da,
2789 data->rx_probe_req.bssid,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002790 data->rx_probe_req.ie,
Dmitry Shmidt04949592012-07-19 12:16:46 -07002791 data->rx_probe_req.ie_len,
2792 data->rx_probe_req.ssi_signal);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002793#endif /* CONFIG_P2P */
2794 break;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002795 case EVENT_REMAIN_ON_CHANNEL:
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002796#ifdef CONFIG_OFFCHANNEL
2797 offchannel_remain_on_channel_cb(
2798 wpa_s, data->remain_on_channel.freq,
2799 data->remain_on_channel.duration);
2800#endif /* CONFIG_OFFCHANNEL */
2801#ifdef CONFIG_P2P
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002802 wpas_p2p_remain_on_channel_cb(
2803 wpa_s, data->remain_on_channel.freq,
2804 data->remain_on_channel.duration);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002805#endif /* CONFIG_P2P */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002806 break;
2807 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002808#ifdef CONFIG_OFFCHANNEL
2809 offchannel_cancel_remain_on_channel_cb(
2810 wpa_s, data->remain_on_channel.freq);
2811#endif /* CONFIG_OFFCHANNEL */
2812#ifdef CONFIG_P2P
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002813 wpas_p2p_cancel_remain_on_channel_cb(
2814 wpa_s, data->remain_on_channel.freq);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002815#endif /* CONFIG_P2P */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002816 break;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002817#ifdef CONFIG_P2P
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002818 case EVENT_P2P_DEV_FOUND: {
2819 struct p2p_peer_info peer_info;
2820
2821 os_memset(&peer_info, 0, sizeof(peer_info));
2822 if (data->p2p_dev_found.dev_addr)
2823 os_memcpy(peer_info.p2p_device_addr,
2824 data->p2p_dev_found.dev_addr, ETH_ALEN);
2825 if (data->p2p_dev_found.pri_dev_type)
2826 os_memcpy(peer_info.pri_dev_type,
2827 data->p2p_dev_found.pri_dev_type,
2828 sizeof(peer_info.pri_dev_type));
2829 if (data->p2p_dev_found.dev_name)
2830 os_strlcpy(peer_info.device_name,
2831 data->p2p_dev_found.dev_name,
2832 sizeof(peer_info.device_name));
2833 peer_info.config_methods = data->p2p_dev_found.config_methods;
2834 peer_info.dev_capab = data->p2p_dev_found.dev_capab;
2835 peer_info.group_capab = data->p2p_dev_found.group_capab;
2836
2837 /*
2838 * FIX: new_device=1 is not necessarily correct. We should
2839 * maintain a P2P peer database in wpa_supplicant and update
2840 * this information based on whether the peer is truly new.
2841 */
2842 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1);
2843 break;
2844 }
2845 case EVENT_P2P_GO_NEG_REQ_RX:
2846 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src,
2847 data->p2p_go_neg_req_rx.dev_passwd_id);
2848 break;
2849 case EVENT_P2P_GO_NEG_COMPLETED:
2850 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res);
2851 break;
2852 case EVENT_P2P_PROV_DISC_REQUEST:
2853 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer,
2854 data->p2p_prov_disc_req.config_methods,
2855 data->p2p_prov_disc_req.dev_addr,
2856 data->p2p_prov_disc_req.pri_dev_type,
2857 data->p2p_prov_disc_req.dev_name,
2858 data->p2p_prov_disc_req.supp_config_methods,
2859 data->p2p_prov_disc_req.dev_capab,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002860 data->p2p_prov_disc_req.group_capab,
2861 NULL, 0);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002862 break;
2863 case EVENT_P2P_PROV_DISC_RESPONSE:
2864 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer,
2865 data->p2p_prov_disc_resp.config_methods);
2866 break;
2867 case EVENT_P2P_SD_REQUEST:
2868 wpas_sd_request(wpa_s, data->p2p_sd_req.freq,
2869 data->p2p_sd_req.sa,
2870 data->p2p_sd_req.dialog_token,
2871 data->p2p_sd_req.update_indic,
2872 data->p2p_sd_req.tlvs,
2873 data->p2p_sd_req.tlvs_len);
2874 break;
2875 case EVENT_P2P_SD_RESPONSE:
2876 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa,
2877 data->p2p_sd_resp.update_indic,
2878 data->p2p_sd_resp.tlvs,
2879 data->p2p_sd_resp.tlvs_len);
2880 break;
2881#endif /* CONFIG_P2P */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002882 case EVENT_EAPOL_RX:
2883 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
2884 data->eapol_rx.data,
2885 data->eapol_rx.data_len);
2886 break;
2887 case EVENT_SIGNAL_CHANGE:
2888 bgscan_notify_signal_change(
2889 wpa_s, data->signal_change.above_threshold,
2890 data->signal_change.current_signal,
2891 data->signal_change.current_noise,
2892 data->signal_change.current_txrate);
2893 break;
2894 case EVENT_INTERFACE_ENABLED:
2895 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
2896 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002897 wpa_supplicant_update_mac_addr(wpa_s);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002898#ifdef CONFIG_AP
2899 if (!wpa_s->ap_iface) {
2900 wpa_supplicant_set_state(wpa_s,
2901 WPA_DISCONNECTED);
2902 wpa_supplicant_req_scan(wpa_s, 0, 0);
2903 } else
2904 wpa_supplicant_set_state(wpa_s,
2905 WPA_COMPLETED);
2906#else /* CONFIG_AP */
2907 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2908 wpa_supplicant_req_scan(wpa_s, 0, 0);
2909#endif /* CONFIG_AP */
2910 }
2911 break;
2912 case EVENT_INTERFACE_DISABLED:
2913 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
2914 wpa_supplicant_mark_disassoc(wpa_s);
2915 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2916 break;
2917 case EVENT_CHANNEL_LIST_CHANGED:
2918 if (wpa_s->drv_priv == NULL)
2919 break; /* Ignore event during drv initialization */
Dmitry Shmidt04949592012-07-19 12:16:46 -07002920
2921 free_hw_features(wpa_s);
2922 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(
2923 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags);
2924
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002925#ifdef CONFIG_P2P
2926 wpas_p2p_update_channel_list(wpa_s);
2927#endif /* CONFIG_P2P */
2928 break;
2929 case EVENT_INTERFACE_UNAVAILABLE:
2930#ifdef CONFIG_P2P
2931 wpas_p2p_interface_unavailable(wpa_s);
2932#endif /* CONFIG_P2P */
2933 break;
2934 case EVENT_BEST_CHANNEL:
2935 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
2936 "(%d %d %d)",
2937 data->best_chan.freq_24, data->best_chan.freq_5,
2938 data->best_chan.freq_overall);
2939 wpa_s->best_24_freq = data->best_chan.freq_24;
2940 wpa_s->best_5_freq = data->best_chan.freq_5;
2941 wpa_s->best_overall_freq = data->best_chan.freq_overall;
2942#ifdef CONFIG_P2P
2943 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
2944 data->best_chan.freq_5,
2945 data->best_chan.freq_overall);
2946#endif /* CONFIG_P2P */
2947 break;
2948 case EVENT_UNPROT_DEAUTH:
2949 wpa_supplicant_event_unprot_deauth(wpa_s,
2950 &data->unprot_deauth);
2951 break;
2952 case EVENT_UNPROT_DISASSOC:
2953 wpa_supplicant_event_unprot_disassoc(wpa_s,
2954 &data->unprot_disassoc);
2955 break;
2956 case EVENT_STATION_LOW_ACK:
2957#ifdef CONFIG_AP
2958 if (wpa_s->ap_iface && data)
2959 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
2960 data->low_ack.addr);
2961#endif /* CONFIG_AP */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002962#ifdef CONFIG_TDLS
2963 if (data)
2964 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr);
2965#endif /* CONFIG_TDLS */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002966 break;
2967 case EVENT_IBSS_PEER_LOST:
2968#ifdef CONFIG_IBSS_RSN
2969 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
2970#endif /* CONFIG_IBSS_RSN */
2971 break;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002972 case EVENT_DRIVER_GTK_REKEY:
2973 if (os_memcmp(data->driver_gtk_rekey.bssid,
2974 wpa_s->bssid, ETH_ALEN))
2975 break;
2976 if (!wpa_s->wpa)
2977 break;
2978 wpa_sm_update_replay_ctr(wpa_s->wpa,
2979 data->driver_gtk_rekey.replay_ctr);
2980 break;
2981 case EVENT_SCHED_SCAN_STOPPED:
2982 wpa_s->sched_scanning = 0;
2983 wpa_supplicant_notify_scanning(wpa_s, 0);
2984
2985 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
2986 break;
2987
2988 /*
2989 * If we timed out, start a new sched scan to continue
2990 * searching for more SSIDs.
2991 */
2992 if (wpa_s->sched_scan_timed_out)
2993 wpa_supplicant_req_sched_scan(wpa_s);
2994 break;
2995 case EVENT_WPS_BUTTON_PUSHED:
2996#ifdef CONFIG_WPS
2997 wpas_wps_start_pbc(wpa_s, NULL, 0);
2998#endif /* CONFIG_WPS */
2999 break;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07003000 default:
3001 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
3002 break;
3003 }
3004}