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tests: Ignore old scan results in couple more WPS test cases
[thirdparty/hostap.git] / wpa_supplicant / events.c
1 /*
2 * WPA Supplicant - Driver event processing
3 * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "includes.h"
10
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"
26 #include "wnm_sta.h"
27 #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"
36 #include "gas_query.h"
37 #include "p2p_supplicant.h"
38 #include "bgscan.h"
39 #include "autoscan.h"
40 #include "ap.h"
41 #include "bss.h"
42 #include "scan.h"
43 #include "offchannel.h"
44 #include "interworking.h"
45
46
47 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s);
48
49
50 static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
51 struct wpa_ssid *ssid)
52 {
53 struct os_time now;
54
55 if (ssid == NULL || ssid->disabled_until.sec == 0)
56 return 0;
57
58 os_get_time(&now);
59 if (ssid->disabled_until.sec > now.sec)
60 return ssid->disabled_until.sec - now.sec;
61
62 wpas_clear_temp_disabled(wpa_s, ssid, 0);
63
64 return 0;
65 }
66
67
68 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
69 {
70 struct wpa_ssid *ssid, *old_ssid;
71 int res;
72
73 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
74 return 0;
75
76 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
77 "information");
78 ssid = wpa_supplicant_get_ssid(wpa_s);
79 if (ssid == NULL) {
80 wpa_msg(wpa_s, MSG_INFO,
81 "No network configuration found for the current AP");
82 return -1;
83 }
84
85 if (wpas_network_disabled(wpa_s, ssid)) {
86 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
87 return -1;
88 }
89
90 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
91 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
92 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
93 return -1;
94 }
95
96 res = wpas_temp_disabled(wpa_s, ssid);
97 if (res > 0) {
98 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
99 "disabled for %d second(s)", res);
100 return -1;
101 }
102
103 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
104 "current AP");
105 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
106 u8 wpa_ie[80];
107 size_t wpa_ie_len = sizeof(wpa_ie);
108 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
109 wpa_ie, &wpa_ie_len) < 0)
110 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
111 } else {
112 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
113 }
114
115 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
116 eapol_sm_invalidate_cached_session(wpa_s->eapol);
117 old_ssid = wpa_s->current_ssid;
118 wpa_s->current_ssid = ssid;
119 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
120 wpa_supplicant_initiate_eapol(wpa_s);
121 if (old_ssid != wpa_s->current_ssid)
122 wpas_notify_network_changed(wpa_s);
123
124 return 0;
125 }
126
127
128 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
129 {
130 struct wpa_supplicant *wpa_s = eloop_ctx;
131
132 if (wpa_s->countermeasures) {
133 wpa_s->countermeasures = 0;
134 wpa_drv_set_countermeasures(wpa_s, 0);
135 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
136 wpa_supplicant_req_scan(wpa_s, 0, 0);
137 }
138 }
139
140
141 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
142 {
143 int bssid_changed;
144
145 wnm_bss_keep_alive_deinit(wpa_s);
146
147 #ifdef CONFIG_IBSS_RSN
148 ibss_rsn_deinit(wpa_s->ibss_rsn);
149 wpa_s->ibss_rsn = NULL;
150 #endif /* CONFIG_IBSS_RSN */
151
152 #ifdef CONFIG_AP
153 wpa_supplicant_ap_deinit(wpa_s);
154 #endif /* CONFIG_AP */
155
156 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
157 return;
158
159 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
160 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
161 os_memset(wpa_s->bssid, 0, ETH_ALEN);
162 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
163 #ifdef CONFIG_SME
164 wpa_s->sme.prev_bssid_set = 0;
165 #endif /* CONFIG_SME */
166 #ifdef CONFIG_P2P
167 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
168 #endif /* CONFIG_P2P */
169 wpa_s->current_bss = NULL;
170 wpa_s->assoc_freq = 0;
171 #ifdef CONFIG_IEEE80211R
172 #ifdef CONFIG_SME
173 if (wpa_s->sme.ft_ies)
174 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
175 #endif /* CONFIG_SME */
176 #endif /* CONFIG_IEEE80211R */
177
178 if (bssid_changed)
179 wpas_notify_bssid_changed(wpa_s);
180
181 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
182 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
183 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
184 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
185 wpa_s->ap_ies_from_associnfo = 0;
186 wpa_s->current_ssid = NULL;
187 wpa_s->key_mgmt = 0;
188 }
189
190
191 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
192 {
193 struct wpa_ie_data ie;
194 int pmksa_set = -1;
195 size_t i;
196
197 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
198 ie.pmkid == NULL)
199 return;
200
201 for (i = 0; i < ie.num_pmkid; i++) {
202 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
203 ie.pmkid + i * PMKID_LEN,
204 NULL, NULL, 0);
205 if (pmksa_set == 0) {
206 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
207 break;
208 }
209 }
210
211 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
212 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
213 }
214
215
216 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
217 union wpa_event_data *data)
218 {
219 if (data == NULL) {
220 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
221 "event");
222 return;
223 }
224 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
225 " index=%d preauth=%d",
226 MAC2STR(data->pmkid_candidate.bssid),
227 data->pmkid_candidate.index,
228 data->pmkid_candidate.preauth);
229
230 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
231 data->pmkid_candidate.index,
232 data->pmkid_candidate.preauth);
233 }
234
235
236 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
237 {
238 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
239 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
240 return 0;
241
242 #ifdef IEEE8021X_EAPOL
243 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
244 wpa_s->current_ssid &&
245 !(wpa_s->current_ssid->eapol_flags &
246 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
247 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
248 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
249 * plaintext or static WEP keys). */
250 return 0;
251 }
252 #endif /* IEEE8021X_EAPOL */
253
254 return 1;
255 }
256
257
258 /**
259 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
260 * @wpa_s: pointer to wpa_supplicant data
261 * @ssid: Configuration data for the network
262 * Returns: 0 on success, -1 on failure
263 *
264 * This function is called when starting authentication with a network that is
265 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
266 */
267 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
268 struct wpa_ssid *ssid)
269 {
270 #ifdef IEEE8021X_EAPOL
271 #ifdef PCSC_FUNCS
272 int aka = 0, sim = 0, type;
273
274 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
275 return 0;
276
277 if (ssid->eap.eap_methods == NULL) {
278 sim = 1;
279 aka = 1;
280 } else {
281 struct eap_method_type *eap = ssid->eap.eap_methods;
282 while (eap->vendor != EAP_VENDOR_IETF ||
283 eap->method != EAP_TYPE_NONE) {
284 if (eap->vendor == EAP_VENDOR_IETF) {
285 if (eap->method == EAP_TYPE_SIM)
286 sim = 1;
287 else if (eap->method == EAP_TYPE_AKA ||
288 eap->method == EAP_TYPE_AKA_PRIME)
289 aka = 1;
290 }
291 eap++;
292 }
293 }
294
295 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
296 sim = 0;
297 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
298 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
299 NULL)
300 aka = 0;
301
302 if (!sim && !aka) {
303 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
304 "use SIM, but neither EAP-SIM nor EAP-AKA are "
305 "enabled");
306 return 0;
307 }
308
309 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
310 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
311 if (sim && aka)
312 type = SCARD_TRY_BOTH;
313 else if (aka)
314 type = SCARD_USIM_ONLY;
315 else
316 type = SCARD_GSM_SIM_ONLY;
317
318 wpa_s->scard = scard_init(type, NULL);
319 if (wpa_s->scard == NULL) {
320 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
321 "(pcsc-lite)");
322 return -1;
323 }
324 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
325 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
326 #endif /* PCSC_FUNCS */
327 #endif /* IEEE8021X_EAPOL */
328
329 return 0;
330 }
331
332
333 #ifndef CONFIG_NO_SCAN_PROCESSING
334 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
335 struct wpa_ssid *ssid)
336 {
337 int i, privacy = 0;
338
339 if (ssid->mixed_cell)
340 return 1;
341
342 #ifdef CONFIG_WPS
343 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
344 return 1;
345 #endif /* CONFIG_WPS */
346
347 for (i = 0; i < NUM_WEP_KEYS; i++) {
348 if (ssid->wep_key_len[i]) {
349 privacy = 1;
350 break;
351 }
352 }
353 #ifdef IEEE8021X_EAPOL
354 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
355 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
356 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
357 privacy = 1;
358 #endif /* IEEE8021X_EAPOL */
359
360 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
361 privacy = 1;
362
363 if (bss->caps & IEEE80211_CAP_PRIVACY)
364 return privacy;
365 return !privacy;
366 }
367
368
369 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
370 struct wpa_ssid *ssid,
371 struct wpa_bss *bss)
372 {
373 struct wpa_ie_data ie;
374 int proto_match = 0;
375 const u8 *rsn_ie, *wpa_ie;
376 int ret;
377 int wep_ok;
378
379 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
380 if (ret >= 0)
381 return ret;
382
383 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
384 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
385 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
386 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
387 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
388
389 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
390 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
391 proto_match++;
392
393 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
394 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
395 "failed");
396 break;
397 }
398
399 if (wep_ok &&
400 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
401 {
402 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
403 "in RSN IE");
404 return 1;
405 }
406
407 if (!(ie.proto & ssid->proto)) {
408 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
409 "mismatch");
410 break;
411 }
412
413 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
414 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
415 "cipher mismatch");
416 break;
417 }
418
419 if (!(ie.group_cipher & ssid->group_cipher)) {
420 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
421 "cipher mismatch");
422 break;
423 }
424
425 if (!(ie.key_mgmt & ssid->key_mgmt)) {
426 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
427 "mismatch");
428 break;
429 }
430
431 #ifdef CONFIG_IEEE80211W
432 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
433 (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ?
434 wpa_s->conf->pmf : ssid->ieee80211w) ==
435 MGMT_FRAME_PROTECTION_REQUIRED) {
436 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
437 "frame protection");
438 break;
439 }
440 #endif /* CONFIG_IEEE80211W */
441
442 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
443 return 1;
444 }
445
446 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
447 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
448 proto_match++;
449
450 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
451 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
452 "failed");
453 break;
454 }
455
456 if (wep_ok &&
457 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
458 {
459 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
460 "in WPA IE");
461 return 1;
462 }
463
464 if (!(ie.proto & ssid->proto)) {
465 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
466 "mismatch");
467 break;
468 }
469
470 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
471 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
472 "cipher mismatch");
473 break;
474 }
475
476 if (!(ie.group_cipher & ssid->group_cipher)) {
477 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
478 "cipher mismatch");
479 break;
480 }
481
482 if (!(ie.key_mgmt & ssid->key_mgmt)) {
483 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
484 "mismatch");
485 break;
486 }
487
488 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
489 return 1;
490 }
491
492 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
493 !rsn_ie) {
494 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
495 return 1;
496 }
497
498 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
499 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
500 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
501 return 0;
502 }
503
504 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
505 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
506 return 1;
507 }
508
509 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
510 "WPA/WPA2");
511
512 return 0;
513 }
514
515
516 static int freq_allowed(int *freqs, int freq)
517 {
518 int i;
519
520 if (freqs == NULL)
521 return 1;
522
523 for (i = 0; freqs[i]; i++)
524 if (freqs[i] == freq)
525 return 1;
526 return 0;
527 }
528
529
530 static int ht_supported(const struct hostapd_hw_modes *mode)
531 {
532 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) {
533 /*
534 * The driver did not indicate whether it supports HT. Assume
535 * it does to avoid connection issues.
536 */
537 return 1;
538 }
539
540 /*
541 * IEEE Std 802.11n-2009 20.1.1:
542 * An HT non-AP STA shall support all EQM rates for one spatial stream.
543 */
544 return mode->mcs_set[0] == 0xff;
545 }
546
547
548 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
549 {
550 const struct hostapd_hw_modes *mode = NULL, *modes;
551 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
552 const u8 *rate_ie;
553 int i, j, k;
554
555 if (bss->freq == 0)
556 return 1; /* Cannot do matching without knowing band */
557
558 modes = wpa_s->hw.modes;
559 if (modes == NULL) {
560 /*
561 * The driver does not provide any additional information
562 * about the utilized hardware, so allow the connection attempt
563 * to continue.
564 */
565 return 1;
566 }
567
568 for (i = 0; i < wpa_s->hw.num_modes; i++) {
569 for (j = 0; j < modes[i].num_channels; j++) {
570 int freq = modes[i].channels[j].freq;
571 if (freq == bss->freq) {
572 if (mode &&
573 mode->mode == HOSTAPD_MODE_IEEE80211G)
574 break; /* do not allow 802.11b replace
575 * 802.11g */
576 mode = &modes[i];
577 break;
578 }
579 }
580 }
581
582 if (mode == NULL)
583 return 0;
584
585 for (i = 0; i < (int) sizeof(scan_ie); i++) {
586 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
587 if (rate_ie == NULL)
588 continue;
589
590 for (j = 2; j < rate_ie[1] + 2; j++) {
591 int flagged = !!(rate_ie[j] & 0x80);
592 int r = (rate_ie[j] & 0x7f) * 5;
593
594 /*
595 * IEEE Std 802.11n-2009 7.3.2.2:
596 * The new BSS Membership selector value is encoded
597 * like a legacy basic rate, but it is not a rate and
598 * only indicates if the BSS members are required to
599 * support the mandatory features of Clause 20 [HT PHY]
600 * in order to join the BSS.
601 */
602 if (flagged && ((rate_ie[j] & 0x7f) ==
603 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
604 if (!ht_supported(mode)) {
605 wpa_dbg(wpa_s, MSG_DEBUG,
606 " hardware does not support "
607 "HT PHY");
608 return 0;
609 }
610 continue;
611 }
612
613 if (!flagged)
614 continue;
615
616 /* check for legacy basic rates */
617 for (k = 0; k < mode->num_rates; k++) {
618 if (mode->rates[k] == r)
619 break;
620 }
621 if (k == mode->num_rates) {
622 /*
623 * IEEE Std 802.11-2007 7.3.2.2 demands that in
624 * order to join a BSS all required rates
625 * have to be supported by the hardware.
626 */
627 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does "
628 "not support required rate %d.%d Mbps",
629 r / 10, r % 10);
630 return 0;
631 }
632 }
633 }
634
635 return 1;
636 }
637
638
639 static int bss_is_dmg(struct wpa_bss *bss)
640 {
641 return bss->freq > 45000;
642 }
643
644
645 /*
646 * Test whether BSS is in an ESS.
647 * This is done differently in DMG (60 GHz) and non-DMG bands
648 */
649 static int bss_is_ess(struct wpa_bss *bss)
650 {
651 if (bss_is_dmg(bss)) {
652 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
653 IEEE80211_CAP_DMG_AP;
654 }
655
656 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
657 IEEE80211_CAP_ESS);
658 }
659
660
661 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
662 int i, struct wpa_bss *bss,
663 struct wpa_ssid *group)
664 {
665 u8 wpa_ie_len, rsn_ie_len;
666 int wpa;
667 struct wpa_blacklist *e;
668 const u8 *ie;
669 struct wpa_ssid *ssid;
670
671 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
672 wpa_ie_len = ie ? ie[1] : 0;
673
674 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
675 rsn_ie_len = ie ? ie[1] : 0;
676
677 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
678 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
679 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
680 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
681 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
682
683 e = wpa_blacklist_get(wpa_s, bss->bssid);
684 if (e) {
685 int limit = 1;
686 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
687 /*
688 * When only a single network is enabled, we can
689 * trigger blacklisting on the first failure. This
690 * should not be done with multiple enabled networks to
691 * avoid getting forced to move into a worse ESS on
692 * single error if there are no other BSSes of the
693 * current ESS.
694 */
695 limit = 0;
696 }
697 if (e->count > limit) {
698 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
699 "(count=%d limit=%d)", e->count, limit);
700 return NULL;
701 }
702 }
703
704 if (bss->ssid_len == 0) {
705 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
706 return NULL;
707 }
708
709 if (disallowed_bssid(wpa_s, bss->bssid)) {
710 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
711 return NULL;
712 }
713
714 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
715 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
716 return NULL;
717 }
718
719 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
720
721 for (ssid = group; ssid; ssid = ssid->pnext) {
722 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
723 int res;
724
725 if (wpas_network_disabled(wpa_s, ssid)) {
726 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
727 continue;
728 }
729
730 res = wpas_temp_disabled(wpa_s, ssid);
731 if (res > 0) {
732 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
733 "temporarily for %d second(s)", res);
734 continue;
735 }
736
737 #ifdef CONFIG_WPS
738 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
739 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
740 "(WPS)");
741 continue;
742 }
743
744 if (wpa && ssid->ssid_len == 0 &&
745 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
746 check_ssid = 0;
747
748 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
749 /* Only allow wildcard SSID match if an AP
750 * advertises active WPS operation that matches
751 * with our mode. */
752 check_ssid = 1;
753 if (ssid->ssid_len == 0 &&
754 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
755 check_ssid = 0;
756 }
757 #endif /* CONFIG_WPS */
758
759 if (ssid->bssid_set && ssid->ssid_len == 0 &&
760 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
761 check_ssid = 0;
762
763 if (check_ssid &&
764 (bss->ssid_len != ssid->ssid_len ||
765 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
766 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
767 continue;
768 }
769
770 if (ssid->bssid_set &&
771 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
772 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
773 continue;
774 }
775
776 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
777 continue;
778
779 if (!wpa &&
780 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
781 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
782 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
783 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
784 "not allowed");
785 continue;
786 }
787
788 if (!wpa_supplicant_match_privacy(bss, ssid)) {
789 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
790 "mismatch");
791 continue;
792 }
793
794 if (!bss_is_ess(bss)) {
795 wpa_dbg(wpa_s, MSG_DEBUG, " skip - not ESS network");
796 continue;
797 }
798
799 if (!freq_allowed(ssid->freq_list, bss->freq)) {
800 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
801 "allowed");
802 continue;
803 }
804
805 if (!rate_match(wpa_s, bss)) {
806 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
807 "not match");
808 continue;
809 }
810
811 #ifdef CONFIG_P2P
812 /*
813 * TODO: skip the AP if its P2P IE has Group Formation
814 * bit set in the P2P Group Capability Bitmap and we
815 * are not in Group Formation with that device.
816 */
817 #endif /* CONFIG_P2P */
818
819 /* Matching configuration found */
820 return ssid;
821 }
822
823 /* No matching configuration found */
824 return NULL;
825 }
826
827
828 static struct wpa_bss *
829 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
830 struct wpa_ssid *group,
831 struct wpa_ssid **selected_ssid)
832 {
833 unsigned int i;
834
835 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
836 group->priority);
837
838 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
839 struct wpa_bss *bss = wpa_s->last_scan_res[i];
840 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
841 if (!*selected_ssid)
842 continue;
843 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
844 " ssid='%s'",
845 MAC2STR(bss->bssid),
846 wpa_ssid_txt(bss->ssid, bss->ssid_len));
847 return bss;
848 }
849
850 return NULL;
851 }
852
853
854 static struct wpa_bss *
855 wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
856 struct wpa_ssid **selected_ssid)
857 {
858 struct wpa_bss *selected = NULL;
859 int prio;
860
861 if (wpa_s->last_scan_res == NULL ||
862 wpa_s->last_scan_res_used == 0)
863 return NULL; /* no scan results from last update */
864
865 while (selected == NULL) {
866 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
867 selected = wpa_supplicant_select_bss(
868 wpa_s, wpa_s->conf->pssid[prio],
869 selected_ssid);
870 if (selected)
871 break;
872 }
873
874 if (selected == NULL && wpa_s->blacklist &&
875 !wpa_s->countermeasures) {
876 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
877 "blacklist and try again");
878 wpa_blacklist_clear(wpa_s);
879 wpa_s->blacklist_cleared++;
880 } else if (selected == NULL)
881 break;
882 }
883
884 return selected;
885 }
886
887
888 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
889 int timeout_sec, int timeout_usec)
890 {
891 if (!wpa_supplicant_enabled_networks(wpa_s)) {
892 /*
893 * No networks are enabled; short-circuit request so
894 * we don't wait timeout seconds before transitioning
895 * to INACTIVE state.
896 */
897 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
898 "since there are no enabled networks");
899 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
900 #ifdef CONFIG_P2P
901 wpa_s->sta_scan_pending = 0;
902 #endif /* CONFIG_P2P */
903 return;
904 }
905
906 wpa_s->scan_for_connection = 1;
907 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
908 }
909
910
911 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
912 struct wpa_bss *selected,
913 struct wpa_ssid *ssid)
914 {
915 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
916 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
917 "PBC session overlap");
918 #ifdef CONFIG_P2P
919 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
920 return -1;
921 #endif /* CONFIG_P2P */
922
923 #ifdef CONFIG_WPS
924 wpas_wps_cancel(wpa_s);
925 #endif /* CONFIG_WPS */
926 return -1;
927 }
928
929 /*
930 * Do not trigger new association unless the BSSID has changed or if
931 * reassociation is requested. If we are in process of associating with
932 * the selected BSSID, do not trigger new attempt.
933 */
934 if (wpa_s->reassociate ||
935 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
936 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
937 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
938 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
939 0))) {
940 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
941 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
942 return 0;
943 }
944 wpa_msg(wpa_s, MSG_DEBUG, "Request association: "
945 "reassociate: %d selected: "MACSTR " bssid: " MACSTR
946 " pending: " MACSTR " wpa_state: %s",
947 wpa_s->reassociate, MAC2STR(selected->bssid),
948 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
949 wpa_supplicant_state_txt(wpa_s->wpa_state));
950 wpa_supplicant_associate(wpa_s, selected, ssid);
951 } else {
952 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the "
953 "selected AP");
954 }
955
956 return 0;
957 }
958
959
960 static struct wpa_ssid *
961 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
962 {
963 int prio;
964 struct wpa_ssid *ssid;
965
966 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
967 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
968 {
969 if (wpas_network_disabled(wpa_s, ssid))
970 continue;
971 if (ssid->mode == IEEE80211_MODE_IBSS ||
972 ssid->mode == IEEE80211_MODE_AP)
973 return ssid;
974 }
975 }
976 return NULL;
977 }
978
979
980 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
981 * on BSS added and BSS changed events */
982 static void wpa_supplicant_rsn_preauth_scan_results(
983 struct wpa_supplicant *wpa_s)
984 {
985 struct wpa_bss *bss;
986
987 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
988 return;
989
990 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
991 const u8 *ssid, *rsn;
992
993 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
994 if (ssid == NULL)
995 continue;
996
997 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
998 if (rsn == NULL)
999 continue;
1000
1001 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1002 }
1003
1004 }
1005
1006
1007 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1008 struct wpa_bss *selected,
1009 struct wpa_ssid *ssid)
1010 {
1011 struct wpa_bss *current_bss = NULL;
1012 int min_diff;
1013
1014 if (wpa_s->reassociate)
1015 return 1; /* explicit request to reassociate */
1016 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1017 return 1; /* we are not associated; continue */
1018 if (wpa_s->current_ssid == NULL)
1019 return 1; /* unknown current SSID */
1020 if (wpa_s->current_ssid != ssid)
1021 return 1; /* different network block */
1022
1023 if (wpas_driver_bss_selection(wpa_s))
1024 return 0; /* Driver-based roaming */
1025
1026 if (wpa_s->current_ssid->ssid)
1027 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1028 wpa_s->current_ssid->ssid,
1029 wpa_s->current_ssid->ssid_len);
1030 if (!current_bss)
1031 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1032
1033 if (!current_bss)
1034 return 1; /* current BSS not seen in scan results */
1035
1036 if (current_bss == selected)
1037 return 0;
1038
1039 if (selected->last_update_idx > current_bss->last_update_idx)
1040 return 1; /* current BSS not seen in the last scan */
1041
1042 #ifndef CONFIG_NO_ROAMING
1043 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1044 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
1045 MAC2STR(current_bss->bssid), current_bss->level);
1046 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
1047 MAC2STR(selected->bssid), selected->level);
1048
1049 if (wpa_s->current_ssid->bssid_set &&
1050 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1051 0) {
1052 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1053 "has preferred BSSID");
1054 return 1;
1055 }
1056
1057 if (current_bss->level < 0 && current_bss->level > selected->level) {
1058 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1059 "signal level");
1060 return 0;
1061 }
1062
1063 min_diff = 2;
1064 if (current_bss->level < 0) {
1065 if (current_bss->level < -85)
1066 min_diff = 1;
1067 else if (current_bss->level < -80)
1068 min_diff = 2;
1069 else if (current_bss->level < -75)
1070 min_diff = 3;
1071 else if (current_bss->level < -70)
1072 min_diff = 4;
1073 else
1074 min_diff = 5;
1075 }
1076 if (abs(current_bss->level - selected->level) < min_diff) {
1077 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1078 "in signal level");
1079 return 0;
1080 }
1081
1082 return 1;
1083 #else /* CONFIG_NO_ROAMING */
1084 return 0;
1085 #endif /* CONFIG_NO_ROAMING */
1086 }
1087
1088
1089 /* Return != 0 if no scan results could be fetched or if scan results should not
1090 * be shared with other virtual interfaces. */
1091 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1092 union wpa_event_data *data,
1093 int own_request)
1094 {
1095 struct wpa_scan_results *scan_res;
1096 int ap = 0;
1097 #ifndef CONFIG_NO_RANDOM_POOL
1098 size_t i, num;
1099 #endif /* CONFIG_NO_RANDOM_POOL */
1100
1101 #ifdef CONFIG_AP
1102 if (wpa_s->ap_iface)
1103 ap = 1;
1104 #endif /* CONFIG_AP */
1105
1106 wpa_supplicant_notify_scanning(wpa_s, 0);
1107
1108 #ifdef CONFIG_P2P
1109 if (own_request && wpa_s->global->p2p_cb_on_scan_complete &&
1110 !wpa_s->global->p2p_disabled &&
1111 wpa_s->global->p2p != NULL && !wpa_s->sta_scan_pending &&
1112 !wpa_s->scan_res_handler) {
1113 wpa_s->global->p2p_cb_on_scan_complete = 0;
1114 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
1115 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
1116 "stopped scan processing");
1117 wpa_s->sta_scan_pending = 1;
1118 wpa_supplicant_req_scan(wpa_s, 5, 0);
1119 return -1;
1120 }
1121 }
1122 wpa_s->sta_scan_pending = 0;
1123 #endif /* CONFIG_P2P */
1124
1125 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1126 data ? &data->scan_info :
1127 NULL, 1);
1128 if (scan_res == NULL) {
1129 if (wpa_s->conf->ap_scan == 2 || ap ||
1130 wpa_s->scan_res_handler == scan_only_handler)
1131 return -1;
1132 if (!own_request)
1133 return -1;
1134 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1135 "scanning again");
1136 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1137 return -1;
1138 }
1139
1140 #ifndef CONFIG_NO_RANDOM_POOL
1141 num = scan_res->num;
1142 if (num > 10)
1143 num = 10;
1144 for (i = 0; i < num; i++) {
1145 u8 buf[5];
1146 struct wpa_scan_res *res = scan_res->res[i];
1147 buf[0] = res->bssid[5];
1148 buf[1] = res->qual & 0xff;
1149 buf[2] = res->noise & 0xff;
1150 buf[3] = res->level & 0xff;
1151 buf[4] = res->tsf & 0xff;
1152 random_add_randomness(buf, sizeof(buf));
1153 }
1154 #endif /* CONFIG_NO_RANDOM_POOL */
1155
1156 if (own_request && wpa_s->scan_res_handler) {
1157 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1158 struct wpa_scan_results *scan_res);
1159
1160 scan_res_handler = wpa_s->scan_res_handler;
1161 wpa_s->scan_res_handler = NULL;
1162 scan_res_handler(wpa_s, scan_res);
1163
1164 wpa_scan_results_free(scan_res);
1165 return -2;
1166 }
1167
1168 if (ap) {
1169 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1170 #ifdef CONFIG_AP
1171 if (wpa_s->ap_iface->scan_cb)
1172 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1173 #endif /* CONFIG_AP */
1174 wpa_scan_results_free(scan_res);
1175 return 0;
1176 }
1177
1178 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
1179 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1180 wpas_notify_scan_results(wpa_s);
1181
1182 wpas_notify_scan_done(wpa_s, 1);
1183
1184 if (sme_proc_obss_scan(wpa_s) > 0) {
1185 wpa_scan_results_free(scan_res);
1186 return 0;
1187 }
1188
1189 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
1190 wpa_scan_results_free(scan_res);
1191 return 0;
1192 }
1193
1194 if (autoscan_notify_scan(wpa_s, scan_res)) {
1195 wpa_scan_results_free(scan_res);
1196 return 0;
1197 }
1198
1199 if (wpa_s->disconnected) {
1200 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1201 wpa_scan_results_free(scan_res);
1202 return 0;
1203 }
1204
1205 if (!wpas_driver_bss_selection(wpa_s) &&
1206 bgscan_notify_scan(wpa_s, scan_res) == 1) {
1207 wpa_scan_results_free(scan_res);
1208 return 0;
1209 }
1210
1211 wpas_wps_update_ap_info(wpa_s, scan_res);
1212
1213 wpa_scan_results_free(scan_res);
1214
1215 return wpas_select_network_from_last_scan(wpa_s);
1216 }
1217
1218
1219 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s)
1220 {
1221 struct wpa_bss *selected;
1222 struct wpa_ssid *ssid = NULL;
1223
1224 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1225
1226 if (selected) {
1227 int skip;
1228 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1229 if (skip) {
1230 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1231 return 0;
1232 }
1233
1234 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1235 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1236 return -1;
1237 }
1238 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1239 /*
1240 * Do not notify other virtual radios of scan results since we do not
1241 * want them to start other associations at the same time.
1242 */
1243 return 1;
1244 } else {
1245 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1246 ssid = wpa_supplicant_pick_new_network(wpa_s);
1247 if (ssid) {
1248 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1249 wpa_supplicant_associate(wpa_s, NULL, ssid);
1250 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1251 } else {
1252 int timeout_sec = wpa_s->scan_interval;
1253 int timeout_usec = 0;
1254 #ifdef CONFIG_P2P
1255 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1)
1256 return 0;
1257
1258 if (wpa_s->p2p_in_provisioning) {
1259 /*
1260 * Use shorter wait during P2P Provisioning
1261 * state to speed up group formation.
1262 */
1263 timeout_sec = 0;
1264 timeout_usec = 250000;
1265 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1266 timeout_usec);
1267 return 0;
1268 }
1269 #endif /* CONFIG_P2P */
1270 #ifdef CONFIG_INTERWORKING
1271 if (wpa_s->conf->auto_interworking &&
1272 wpa_s->conf->interworking &&
1273 wpa_s->conf->cred) {
1274 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1275 "start ANQP fetch since no matching "
1276 "networks found");
1277 wpa_s->network_select = 1;
1278 wpa_s->auto_network_select = 1;
1279 interworking_start_fetch_anqp(wpa_s);
1280 return 1;
1281 }
1282 #endif /* CONFIG_INTERWORKING */
1283 if (wpa_supplicant_req_sched_scan(wpa_s))
1284 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1285 timeout_usec);
1286 }
1287 }
1288 return 0;
1289 }
1290
1291
1292 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1293 union wpa_event_data *data)
1294 {
1295 const char *rn, *rn2;
1296 struct wpa_supplicant *ifs;
1297
1298 if (_wpa_supplicant_event_scan_results(wpa_s, data, 1) != 0) {
1299 /*
1300 * If no scan results could be fetched, then no need to
1301 * notify those interfaces that did not actually request
1302 * this scan. Similarly, if scan results started a new operation on this
1303 * interface, do not notify other interfaces to avoid concurrent
1304 * operations during a connection attempt.
1305 */
1306 return;
1307 }
1308
1309 /*
1310 * Check other interfaces to see if they have the same radio-name. If
1311 * so, they get updated with this same scan info.
1312 */
1313 if (!wpa_s->driver->get_radio_name)
1314 return;
1315
1316 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
1317 if (rn == NULL || rn[0] == '\0')
1318 return;
1319
1320 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces "
1321 "sharing same radio (%s) in event_scan_results", rn);
1322
1323 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
1324 if (ifs == wpa_s || !ifs->driver->get_radio_name)
1325 continue;
1326
1327 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
1328 if (rn2 && os_strcmp(rn, rn2) == 0) {
1329 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1330 "sibling", ifs->ifname);
1331 _wpa_supplicant_event_scan_results(ifs, data, 0);
1332 }
1333 }
1334 }
1335
1336 #endif /* CONFIG_NO_SCAN_PROCESSING */
1337
1338
1339 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1340 {
1341 #ifdef CONFIG_NO_SCAN_PROCESSING
1342 return -1;
1343 #else /* CONFIG_NO_SCAN_PROCESSING */
1344 struct os_time now;
1345
1346 if (wpa_s->last_scan_res_used <= 0)
1347 return -1;
1348
1349 os_get_time(&now);
1350 if (now.sec - wpa_s->last_scan.sec > 5) {
1351 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1352 return -1;
1353 }
1354
1355 return wpas_select_network_from_last_scan(wpa_s);
1356 #endif /* CONFIG_NO_SCAN_PROCESSING */
1357 }
1358
1359 #ifdef CONFIG_WNM
1360
1361 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1362 {
1363 struct wpa_supplicant *wpa_s = eloop_ctx;
1364
1365 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1366 return;
1367
1368 if (!wpa_s->no_keep_alive) {
1369 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1370 MAC2STR(wpa_s->bssid));
1371 /* TODO: could skip this if normal data traffic has been sent */
1372 /* TODO: Consider using some more appropriate data frame for
1373 * this */
1374 if (wpa_s->l2)
1375 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1376 (u8 *) "", 0);
1377 }
1378
1379 #ifdef CONFIG_SME
1380 if (wpa_s->sme.bss_max_idle_period) {
1381 unsigned int msec;
1382 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1383 if (msec > 100)
1384 msec -= 100;
1385 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1386 wnm_bss_keep_alive, wpa_s, NULL);
1387 }
1388 #endif /* CONFIG_SME */
1389 }
1390
1391
1392 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1393 const u8 *ies, size_t ies_len)
1394 {
1395 struct ieee802_11_elems elems;
1396
1397 if (ies == NULL)
1398 return;
1399
1400 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1401 return;
1402
1403 #ifdef CONFIG_SME
1404 if (elems.bss_max_idle_period) {
1405 unsigned int msec;
1406 wpa_s->sme.bss_max_idle_period =
1407 WPA_GET_LE16(elems.bss_max_idle_period);
1408 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1409 "TU)%s", wpa_s->sme.bss_max_idle_period,
1410 (elems.bss_max_idle_period[2] & 0x01) ?
1411 " (protected keep-live required)" : "");
1412 if (wpa_s->sme.bss_max_idle_period == 0)
1413 wpa_s->sme.bss_max_idle_period = 1;
1414 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1415 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1416 /* msec times 1000 */
1417 msec = wpa_s->sme.bss_max_idle_period * 1024;
1418 if (msec > 100)
1419 msec -= 100;
1420 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1421 wnm_bss_keep_alive, wpa_s,
1422 NULL);
1423 }
1424 }
1425 #endif /* CONFIG_SME */
1426 }
1427
1428 #endif /* CONFIG_WNM */
1429
1430
1431 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1432 {
1433 #ifdef CONFIG_WNM
1434 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1435 #endif /* CONFIG_WNM */
1436 }
1437
1438
1439 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1440 union wpa_event_data *data)
1441 {
1442 int l, len, found = 0, wpa_found, rsn_found;
1443 const u8 *p;
1444 #ifdef CONFIG_IEEE80211R
1445 u8 bssid[ETH_ALEN];
1446 #endif /* CONFIG_IEEE80211R */
1447
1448 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1449 if (data->assoc_info.req_ies)
1450 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1451 data->assoc_info.req_ies_len);
1452 if (data->assoc_info.resp_ies) {
1453 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1454 data->assoc_info.resp_ies_len);
1455 #ifdef CONFIG_TDLS
1456 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1457 data->assoc_info.resp_ies_len);
1458 #endif /* CONFIG_TDLS */
1459 #ifdef CONFIG_WNM
1460 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1461 data->assoc_info.resp_ies_len);
1462 #endif /* CONFIG_WNM */
1463 }
1464 if (data->assoc_info.beacon_ies)
1465 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1466 data->assoc_info.beacon_ies,
1467 data->assoc_info.beacon_ies_len);
1468 if (data->assoc_info.freq)
1469 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1470 data->assoc_info.freq);
1471
1472 p = data->assoc_info.req_ies;
1473 l = data->assoc_info.req_ies_len;
1474
1475 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1476 while (p && l >= 2) {
1477 len = p[1] + 2;
1478 if (len > l) {
1479 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1480 p, l);
1481 break;
1482 }
1483 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1484 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1485 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1486 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1487 break;
1488 found = 1;
1489 wpa_find_assoc_pmkid(wpa_s);
1490 break;
1491 }
1492 l -= len;
1493 p += len;
1494 }
1495 if (!found && data->assoc_info.req_ies)
1496 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1497
1498 #ifdef CONFIG_IEEE80211R
1499 #ifdef CONFIG_SME
1500 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1501 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1502 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1503 data->assoc_info.resp_ies,
1504 data->assoc_info.resp_ies_len,
1505 bssid) < 0) {
1506 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1507 "Reassociation Response failed");
1508 wpa_supplicant_deauthenticate(
1509 wpa_s, WLAN_REASON_INVALID_IE);
1510 return -1;
1511 }
1512 }
1513
1514 p = data->assoc_info.resp_ies;
1515 l = data->assoc_info.resp_ies_len;
1516
1517 #ifdef CONFIG_WPS_STRICT
1518 if (p && wpa_s->current_ssid &&
1519 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1520 struct wpabuf *wps;
1521 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1522 if (wps == NULL) {
1523 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1524 "include WPS IE in (Re)Association Response");
1525 return -1;
1526 }
1527
1528 if (wps_validate_assoc_resp(wps) < 0) {
1529 wpabuf_free(wps);
1530 wpa_supplicant_deauthenticate(
1531 wpa_s, WLAN_REASON_INVALID_IE);
1532 return -1;
1533 }
1534 wpabuf_free(wps);
1535 }
1536 #endif /* CONFIG_WPS_STRICT */
1537
1538 /* Go through the IEs and make a copy of the MDIE, if present. */
1539 while (p && l >= 2) {
1540 len = p[1] + 2;
1541 if (len > l) {
1542 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1543 p, l);
1544 break;
1545 }
1546 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1547 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1548 wpa_s->sme.ft_used = 1;
1549 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1550 MOBILITY_DOMAIN_ID_LEN);
1551 break;
1552 }
1553 l -= len;
1554 p += len;
1555 }
1556 #endif /* CONFIG_SME */
1557
1558 /* Process FT when SME is in the driver */
1559 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
1560 wpa_ft_is_completed(wpa_s->wpa)) {
1561 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1562 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1563 data->assoc_info.resp_ies,
1564 data->assoc_info.resp_ies_len,
1565 bssid) < 0) {
1566 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1567 "Reassociation Response failed");
1568 wpa_supplicant_deauthenticate(
1569 wpa_s, WLAN_REASON_INVALID_IE);
1570 return -1;
1571 }
1572 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
1573 }
1574
1575 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1576 data->assoc_info.resp_ies_len);
1577 #endif /* CONFIG_IEEE80211R */
1578
1579 /* WPA/RSN IE from Beacon/ProbeResp */
1580 p = data->assoc_info.beacon_ies;
1581 l = data->assoc_info.beacon_ies_len;
1582
1583 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1584 */
1585 wpa_found = rsn_found = 0;
1586 while (p && l >= 2) {
1587 len = p[1] + 2;
1588 if (len > l) {
1589 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1590 p, l);
1591 break;
1592 }
1593 if (!wpa_found &&
1594 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1595 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1596 wpa_found = 1;
1597 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1598 }
1599
1600 if (!rsn_found &&
1601 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1602 rsn_found = 1;
1603 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1604 }
1605
1606 l -= len;
1607 p += len;
1608 }
1609
1610 if (!wpa_found && data->assoc_info.beacon_ies)
1611 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1612 if (!rsn_found && data->assoc_info.beacon_ies)
1613 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1614 if (wpa_found || rsn_found)
1615 wpa_s->ap_ies_from_associnfo = 1;
1616
1617 if (wpa_s->assoc_freq && data->assoc_info.freq &&
1618 wpa_s->assoc_freq != data->assoc_info.freq) {
1619 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1620 "%u to %u MHz",
1621 wpa_s->assoc_freq, data->assoc_info.freq);
1622 wpa_supplicant_update_scan_results(wpa_s);
1623 }
1624
1625 wpa_s->assoc_freq = data->assoc_info.freq;
1626
1627 return 0;
1628 }
1629
1630
1631 static struct wpa_bss * wpa_supplicant_get_new_bss(
1632 struct wpa_supplicant *wpa_s, const u8 *bssid)
1633 {
1634 struct wpa_bss *bss = NULL;
1635 struct wpa_ssid *ssid = wpa_s->current_ssid;
1636
1637 if (ssid->ssid_len > 0)
1638 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
1639 if (!bss)
1640 bss = wpa_bss_get_bssid(wpa_s, bssid);
1641
1642 return bss;
1643 }
1644
1645
1646 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
1647 {
1648 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
1649
1650 if (!wpa_s->current_bss || !wpa_s->current_ssid)
1651 return -1;
1652
1653 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
1654 return 0;
1655
1656 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
1657 WPA_IE_VENDOR_TYPE);
1658 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
1659
1660 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1661 bss_wpa ? 2 + bss_wpa[1] : 0) ||
1662 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1663 bss_rsn ? 2 + bss_rsn[1] : 0))
1664 return -1;
1665
1666 return 0;
1667 }
1668
1669
1670 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1671 union wpa_event_data *data)
1672 {
1673 u8 bssid[ETH_ALEN];
1674 int ft_completed;
1675 struct wpa_driver_capa capa;
1676
1677 #ifdef CONFIG_AP
1678 if (wpa_s->ap_iface) {
1679 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1680 data->assoc_info.addr,
1681 data->assoc_info.req_ies,
1682 data->assoc_info.req_ies_len,
1683 data->assoc_info.reassoc);
1684 return;
1685 }
1686 #endif /* CONFIG_AP */
1687
1688 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1689 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1690 return;
1691
1692 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
1693 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
1694 wpa_supplicant_deauthenticate(
1695 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1696 return;
1697 }
1698
1699 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
1700 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
1701 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1702 MACSTR, MAC2STR(bssid));
1703 random_add_randomness(bssid, ETH_ALEN);
1704 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1705 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1706 wpas_notify_bssid_changed(wpa_s);
1707
1708 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1709 wpa_clear_keys(wpa_s, bssid);
1710 }
1711 if (wpa_supplicant_select_config(wpa_s) < 0) {
1712 wpa_supplicant_deauthenticate(
1713 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1714 return;
1715 }
1716 if (wpa_s->current_ssid) {
1717 struct wpa_bss *bss = NULL;
1718
1719 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
1720 if (!bss) {
1721 wpa_supplicant_update_scan_results(wpa_s);
1722
1723 /* Get the BSS from the new scan results */
1724 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
1725 }
1726
1727 if (bss)
1728 wpa_s->current_bss = bss;
1729 }
1730
1731 if (wpa_s->conf->ap_scan == 1 &&
1732 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
1733 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0)
1734 wpa_msg(wpa_s, MSG_WARNING,
1735 "WPA/RSN IEs not updated");
1736 }
1737 }
1738
1739 #ifdef CONFIG_SME
1740 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1741 wpa_s->sme.prev_bssid_set = 1;
1742 #endif /* CONFIG_SME */
1743
1744 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1745 if (wpa_s->current_ssid) {
1746 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1747 * initialized before association, but for other modes,
1748 * initialize PC/SC here, if the current configuration needs
1749 * smartcard or SIM/USIM. */
1750 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1751 }
1752 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1753 if (wpa_s->l2)
1754 l2_packet_notify_auth_start(wpa_s->l2);
1755
1756 /*
1757 * Set portEnabled first to FALSE in order to get EAP state machine out
1758 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1759 * state machine may transit to AUTHENTICATING state based on obsolete
1760 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1761 * AUTHENTICATED without ever giving chance to EAP state machine to
1762 * reset the state.
1763 */
1764 if (!ft_completed) {
1765 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1766 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1767 }
1768 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1769 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1770 /* 802.1X::portControl = Auto */
1771 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1772 wpa_s->eapol_received = 0;
1773 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1774 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1775 (wpa_s->current_ssid &&
1776 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1777 wpa_supplicant_cancel_auth_timeout(wpa_s);
1778 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1779 } else if (!ft_completed) {
1780 /* Timeout for receiving the first EAPOL packet */
1781 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1782 }
1783 wpa_supplicant_cancel_scan(wpa_s);
1784
1785 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1786 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1787 /*
1788 * We are done; the driver will take care of RSN 4-way
1789 * handshake.
1790 */
1791 wpa_supplicant_cancel_auth_timeout(wpa_s);
1792 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1793 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1794 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1795 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1796 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1797 /*
1798 * The driver will take care of RSN 4-way handshake, so we need
1799 * to allow EAPOL supplicant to complete its work without
1800 * waiting for WPA supplicant.
1801 */
1802 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1803 } else if (ft_completed) {
1804 /*
1805 * FT protocol completed - make sure EAPOL state machine ends
1806 * up in authenticated.
1807 */
1808 wpa_supplicant_cancel_auth_timeout(wpa_s);
1809 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1810 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1811 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1812 }
1813
1814 wpa_s->last_eapol_matches_bssid = 0;
1815
1816 if (wpa_s->pending_eapol_rx) {
1817 struct os_time now, age;
1818 os_get_time(&now);
1819 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1820 if (age.sec == 0 && age.usec < 100000 &&
1821 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1822 0) {
1823 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
1824 "frame that was received just before "
1825 "association notification");
1826 wpa_supplicant_rx_eapol(
1827 wpa_s, wpa_s->pending_eapol_rx_src,
1828 wpabuf_head(wpa_s->pending_eapol_rx),
1829 wpabuf_len(wpa_s->pending_eapol_rx));
1830 }
1831 wpabuf_free(wpa_s->pending_eapol_rx);
1832 wpa_s->pending_eapol_rx = NULL;
1833 }
1834
1835 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1836 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
1837 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1838 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
1839 /* Set static WEP keys again */
1840 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
1841 }
1842
1843 #ifdef CONFIG_IBSS_RSN
1844 if (wpa_s->current_ssid &&
1845 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
1846 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
1847 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
1848 wpa_s->ibss_rsn == NULL) {
1849 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
1850 if (!wpa_s->ibss_rsn) {
1851 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
1852 wpa_supplicant_deauthenticate(
1853 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1854 return;
1855 }
1856
1857 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
1858 }
1859 #endif /* CONFIG_IBSS_RSN */
1860
1861 wpas_wps_notify_assoc(wpa_s, bssid);
1862 }
1863
1864
1865 static int disconnect_reason_recoverable(u16 reason_code)
1866 {
1867 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
1868 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
1869 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
1870 }
1871
1872
1873 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
1874 u16 reason_code,
1875 int locally_generated)
1876 {
1877 const u8 *bssid;
1878
1879 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1880 /*
1881 * At least Host AP driver and a Prism3 card seemed to be
1882 * generating streams of disconnected events when configuring
1883 * IBSS for WPA-None. Ignore them for now.
1884 */
1885 return;
1886 }
1887
1888 bssid = wpa_s->bssid;
1889 if (is_zero_ether_addr(bssid))
1890 bssid = wpa_s->pending_bssid;
1891
1892 if (!is_zero_ether_addr(bssid) ||
1893 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1894 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
1895 " reason=%d%s",
1896 MAC2STR(bssid), reason_code,
1897 locally_generated ? " locally_generated=1" : "");
1898 }
1899 }
1900
1901
1902 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
1903 int locally_generated)
1904 {
1905 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
1906 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
1907 return 0; /* Not in 4-way handshake with PSK */
1908
1909 /*
1910 * It looks like connection was lost while trying to go through PSK
1911 * 4-way handshake. Filter out known disconnection cases that are caused
1912 * by something else than PSK mismatch to avoid confusing reports.
1913 */
1914
1915 if (locally_generated) {
1916 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
1917 return 0;
1918 }
1919
1920 return 1;
1921 }
1922
1923
1924 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
1925 u16 reason_code,
1926 int locally_generated)
1927 {
1928 const u8 *bssid;
1929 int authenticating;
1930 u8 prev_pending_bssid[ETH_ALEN];
1931 struct wpa_bss *fast_reconnect = NULL;
1932 struct wpa_ssid *fast_reconnect_ssid = NULL;
1933 struct wpa_ssid *last_ssid;
1934
1935 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
1936 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
1937
1938 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1939 /*
1940 * At least Host AP driver and a Prism3 card seemed to be
1941 * generating streams of disconnected events when configuring
1942 * IBSS for WPA-None. Ignore them for now.
1943 */
1944 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
1945 "IBSS/WPA-None mode");
1946 return;
1947 }
1948
1949 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
1950 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
1951 "pre-shared key may be incorrect");
1952 wpas_auth_failed(wpa_s);
1953 }
1954 if (!wpa_s->auto_reconnect_disabled ||
1955 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
1956 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
1957 "reconnect (wps=%d wpa_state=%d)",
1958 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
1959 wpa_s->wpa_state);
1960 if (wpa_s->wpa_state == WPA_COMPLETED &&
1961 wpa_s->current_ssid &&
1962 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
1963 !locally_generated &&
1964 disconnect_reason_recoverable(reason_code)) {
1965 /*
1966 * It looks like the AP has dropped association with
1967 * us, but could allow us to get back in. Try to
1968 * reconnect to the same BSS without full scan to save
1969 * time for some common cases.
1970 */
1971 fast_reconnect = wpa_s->current_bss;
1972 fast_reconnect_ssid = wpa_s->current_ssid;
1973 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
1974 wpa_supplicant_req_scan(wpa_s, 0, 100000);
1975 else
1976 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
1977 "immediate scan");
1978 } else {
1979 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
1980 "try to re-connect");
1981 wpa_s->reassociate = 0;
1982 wpa_s->disconnected = 1;
1983 wpa_supplicant_cancel_sched_scan(wpa_s);
1984 }
1985 bssid = wpa_s->bssid;
1986 if (is_zero_ether_addr(bssid))
1987 bssid = wpa_s->pending_bssid;
1988 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
1989 wpas_connection_failed(wpa_s, bssid);
1990 wpa_sm_notify_disassoc(wpa_s->wpa);
1991 if (locally_generated)
1992 wpa_s->disconnect_reason = -reason_code;
1993 else
1994 wpa_s->disconnect_reason = reason_code;
1995 wpas_notify_disconnect_reason(wpa_s);
1996 if (wpa_supplicant_dynamic_keys(wpa_s)) {
1997 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
1998 wpa_s->keys_cleared = 0;
1999 wpa_clear_keys(wpa_s, wpa_s->bssid);
2000 }
2001 last_ssid = wpa_s->current_ssid;
2002 wpa_supplicant_mark_disassoc(wpa_s);
2003
2004 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2005 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2006 wpa_s->current_ssid = last_ssid;
2007 }
2008
2009 if (fast_reconnect) {
2010 #ifndef CONFIG_NO_SCAN_PROCESSING
2011 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2012 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2013 fast_reconnect_ssid) < 0) {
2014 /* Recover through full scan */
2015 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2016 }
2017 #endif /* CONFIG_NO_SCAN_PROCESSING */
2018 }
2019 }
2020
2021
2022 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2023 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
2024 {
2025 struct wpa_supplicant *wpa_s = eloop_ctx;
2026
2027 if (!wpa_s->pending_mic_error_report)
2028 return;
2029
2030 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2031 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2032 wpa_s->pending_mic_error_report = 0;
2033 }
2034 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2035
2036
2037 static void
2038 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2039 union wpa_event_data *data)
2040 {
2041 int pairwise;
2042 struct os_time t;
2043
2044 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2045 pairwise = (data && data->michael_mic_failure.unicast);
2046 os_get_time(&t);
2047 if ((wpa_s->last_michael_mic_error &&
2048 t.sec - wpa_s->last_michael_mic_error <= 60) ||
2049 wpa_s->pending_mic_error_report) {
2050 if (wpa_s->pending_mic_error_report) {
2051 /*
2052 * Send the pending MIC error report immediately since
2053 * we are going to start countermeasures and AP better
2054 * do the same.
2055 */
2056 wpa_sm_key_request(wpa_s->wpa, 1,
2057 wpa_s->pending_mic_error_pairwise);
2058 }
2059
2060 /* Send the new MIC error report immediately since we are going
2061 * to start countermeasures and AP better do the same.
2062 */
2063 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2064
2065 /* initialize countermeasures */
2066 wpa_s->countermeasures = 1;
2067
2068 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2069
2070 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2071
2072 /*
2073 * Need to wait for completion of request frame. We do not get
2074 * any callback for the message completion, so just wait a
2075 * short while and hope for the best. */
2076 os_sleep(0, 10000);
2077
2078 wpa_drv_set_countermeasures(wpa_s, 1);
2079 wpa_supplicant_deauthenticate(wpa_s,
2080 WLAN_REASON_MICHAEL_MIC_FAILURE);
2081 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2082 wpa_s, NULL);
2083 eloop_register_timeout(60, 0,
2084 wpa_supplicant_stop_countermeasures,
2085 wpa_s, NULL);
2086 /* TODO: mark the AP rejected for 60 second. STA is
2087 * allowed to associate with another AP.. */
2088 } else {
2089 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2090 if (wpa_s->mic_errors_seen) {
2091 /*
2092 * Reduce the effectiveness of Michael MIC error
2093 * reports as a means for attacking against TKIP if
2094 * more than one MIC failure is noticed with the same
2095 * PTK. We delay the transmission of the reports by a
2096 * random time between 0 and 60 seconds in order to
2097 * force the attacker wait 60 seconds before getting
2098 * the information on whether a frame resulted in a MIC
2099 * failure.
2100 */
2101 u8 rval[4];
2102 int sec;
2103
2104 if (os_get_random(rval, sizeof(rval)) < 0)
2105 sec = os_random() % 60;
2106 else
2107 sec = WPA_GET_BE32(rval) % 60;
2108 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2109 "report %d seconds", sec);
2110 wpa_s->pending_mic_error_report = 1;
2111 wpa_s->pending_mic_error_pairwise = pairwise;
2112 eloop_cancel_timeout(
2113 wpa_supplicant_delayed_mic_error_report,
2114 wpa_s, NULL);
2115 eloop_register_timeout(
2116 sec, os_random() % 1000000,
2117 wpa_supplicant_delayed_mic_error_report,
2118 wpa_s, NULL);
2119 } else {
2120 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2121 }
2122 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2123 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2124 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2125 }
2126 wpa_s->last_michael_mic_error = t.sec;
2127 wpa_s->mic_errors_seen++;
2128 }
2129
2130
2131 #ifdef CONFIG_TERMINATE_ONLASTIF
2132 static int any_interfaces(struct wpa_supplicant *head)
2133 {
2134 struct wpa_supplicant *wpa_s;
2135
2136 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2137 if (!wpa_s->interface_removed)
2138 return 1;
2139 return 0;
2140 }
2141 #endif /* CONFIG_TERMINATE_ONLASTIF */
2142
2143
2144 static void
2145 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2146 union wpa_event_data *data)
2147 {
2148 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2149 return;
2150
2151 switch (data->interface_status.ievent) {
2152 case EVENT_INTERFACE_ADDED:
2153 if (!wpa_s->interface_removed)
2154 break;
2155 wpa_s->interface_removed = 0;
2156 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2157 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2158 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2159 "driver after interface was added");
2160 }
2161 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2162 break;
2163 case EVENT_INTERFACE_REMOVED:
2164 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2165 wpa_s->interface_removed = 1;
2166 wpa_supplicant_mark_disassoc(wpa_s);
2167 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2168 l2_packet_deinit(wpa_s->l2);
2169 wpa_s->l2 = NULL;
2170 #ifdef CONFIG_IBSS_RSN
2171 ibss_rsn_deinit(wpa_s->ibss_rsn);
2172 wpa_s->ibss_rsn = NULL;
2173 #endif /* CONFIG_IBSS_RSN */
2174 #ifdef CONFIG_TERMINATE_ONLASTIF
2175 /* check if last interface */
2176 if (!any_interfaces(wpa_s->global->ifaces))
2177 eloop_terminate();
2178 #endif /* CONFIG_TERMINATE_ONLASTIF */
2179 break;
2180 }
2181 }
2182
2183
2184 #ifdef CONFIG_PEERKEY
2185 static void
2186 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2187 union wpa_event_data *data)
2188 {
2189 if (data == NULL)
2190 return;
2191 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2192 }
2193 #endif /* CONFIG_PEERKEY */
2194
2195
2196 #ifdef CONFIG_TDLS
2197 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2198 union wpa_event_data *data)
2199 {
2200 if (data == NULL)
2201 return;
2202 switch (data->tdls.oper) {
2203 case TDLS_REQUEST_SETUP:
2204 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2205 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2206 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2207 else
2208 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2209 break;
2210 case TDLS_REQUEST_TEARDOWN:
2211 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2212 data->tdls.reason_code);
2213 break;
2214 }
2215 }
2216 #endif /* CONFIG_TDLS */
2217
2218
2219 #ifdef CONFIG_WNM
2220 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2221 union wpa_event_data *data)
2222 {
2223 if (data == NULL)
2224 return;
2225 switch (data->wnm.oper) {
2226 case WNM_OPER_SLEEP:
2227 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2228 "(action=%d, intval=%d)",
2229 data->wnm.sleep_action, data->wnm.sleep_intval);
2230 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2231 data->wnm.sleep_intval, NULL);
2232 break;
2233 }
2234 }
2235 #endif /* CONFIG_WNM */
2236
2237
2238 #ifdef CONFIG_IEEE80211R
2239 static void
2240 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2241 union wpa_event_data *data)
2242 {
2243 if (data == NULL)
2244 return;
2245
2246 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2247 data->ft_ies.ies_len,
2248 data->ft_ies.ft_action,
2249 data->ft_ies.target_ap,
2250 data->ft_ies.ric_ies,
2251 data->ft_ies.ric_ies_len) < 0) {
2252 /* TODO: prevent MLME/driver from trying to associate? */
2253 }
2254 }
2255 #endif /* CONFIG_IEEE80211R */
2256
2257
2258 #ifdef CONFIG_IBSS_RSN
2259 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2260 union wpa_event_data *data)
2261 {
2262 struct wpa_ssid *ssid;
2263 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2264 return;
2265 if (data == NULL)
2266 return;
2267 ssid = wpa_s->current_ssid;
2268 if (ssid == NULL)
2269 return;
2270 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2271 return;
2272
2273 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2274 }
2275 #endif /* CONFIG_IBSS_RSN */
2276
2277
2278 #ifdef CONFIG_IEEE80211R
2279 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2280 size_t len)
2281 {
2282 const u8 *sta_addr, *target_ap_addr;
2283 u16 status;
2284
2285 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2286 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2287 return; /* only SME case supported for now */
2288 if (len < 1 + 2 * ETH_ALEN + 2)
2289 return;
2290 if (data[0] != 2)
2291 return; /* Only FT Action Response is supported for now */
2292 sta_addr = data + 1;
2293 target_ap_addr = data + 1 + ETH_ALEN;
2294 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2295 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2296 MACSTR " TargetAP " MACSTR " status %u",
2297 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2298
2299 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2300 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2301 " in FT Action Response", MAC2STR(sta_addr));
2302 return;
2303 }
2304
2305 if (status) {
2306 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2307 "failure (status code %d)", status);
2308 /* TODO: report error to FT code(?) */
2309 return;
2310 }
2311
2312 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2313 len - (1 + 2 * ETH_ALEN + 2), 1,
2314 target_ap_addr, NULL, 0) < 0)
2315 return;
2316
2317 #ifdef CONFIG_SME
2318 {
2319 struct wpa_bss *bss;
2320 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2321 if (bss)
2322 wpa_s->sme.freq = bss->freq;
2323 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2324 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2325 WLAN_AUTH_FT);
2326 }
2327 #endif /* CONFIG_SME */
2328 }
2329 #endif /* CONFIG_IEEE80211R */
2330
2331
2332 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2333 struct unprot_deauth *e)
2334 {
2335 #ifdef CONFIG_IEEE80211W
2336 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2337 "dropped: " MACSTR " -> " MACSTR
2338 " (reason code %u)",
2339 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2340 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2341 #endif /* CONFIG_IEEE80211W */
2342 }
2343
2344
2345 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2346 struct unprot_disassoc *e)
2347 {
2348 #ifdef CONFIG_IEEE80211W
2349 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2350 "dropped: " MACSTR " -> " MACSTR
2351 " (reason code %u)",
2352 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2353 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2354 #endif /* CONFIG_IEEE80211W */
2355 }
2356
2357
2358 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
2359 union wpa_event_data *data)
2360 {
2361 struct wpa_supplicant *wpa_s = ctx;
2362 u16 reason_code = 0;
2363 int locally_generated = 0;
2364
2365 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
2366 event != EVENT_INTERFACE_ENABLED &&
2367 event != EVENT_INTERFACE_STATUS &&
2368 event != EVENT_SCHED_SCAN_STOPPED) {
2369 wpa_dbg(wpa_s, MSG_DEBUG,
2370 "Ignore event %s (%d) while interface is disabled",
2371 event_to_string(event), event);
2372 return;
2373 }
2374
2375 #ifndef CONFIG_NO_STDOUT_DEBUG
2376 {
2377 int level = MSG_DEBUG;
2378
2379 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
2380 const struct ieee80211_hdr *hdr;
2381 u16 fc;
2382 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
2383 fc = le_to_host16(hdr->frame_control);
2384 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2385 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
2386 level = MSG_EXCESSIVE;
2387 }
2388
2389 wpa_dbg(wpa_s, level, "Event %s (%d) received",
2390 event_to_string(event), event);
2391 }
2392 #endif /* CONFIG_NO_STDOUT_DEBUG */
2393
2394 switch (event) {
2395 case EVENT_AUTH:
2396 sme_event_auth(wpa_s, data);
2397 break;
2398 case EVENT_ASSOC:
2399 wpa_supplicant_event_assoc(wpa_s, data);
2400 break;
2401 case EVENT_DISASSOC:
2402 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2403 if (data) {
2404 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2405 data->disassoc_info.reason_code,
2406 data->disassoc_info.locally_generated ?
2407 " (locally generated)" : "");
2408 if (data->disassoc_info.addr)
2409 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2410 MAC2STR(data->disassoc_info.addr));
2411 }
2412 #ifdef CONFIG_AP
2413 if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
2414 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2415 data->disassoc_info.addr);
2416 break;
2417 }
2418 if (wpa_s->ap_iface) {
2419 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in "
2420 "AP mode");
2421 break;
2422 }
2423 #endif /* CONFIG_AP */
2424 if (data) {
2425 reason_code = data->disassoc_info.reason_code;
2426 locally_generated =
2427 data->disassoc_info.locally_generated;
2428 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2429 data->disassoc_info.ie,
2430 data->disassoc_info.ie_len);
2431 #ifdef CONFIG_P2P
2432 wpas_p2p_disassoc_notif(
2433 wpa_s, data->disassoc_info.addr, reason_code,
2434 data->disassoc_info.ie,
2435 data->disassoc_info.ie_len,
2436 locally_generated);
2437 #endif /* CONFIG_P2P */
2438 }
2439 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2440 sme_event_disassoc(wpa_s, data);
2441 /* fall through */
2442 case EVENT_DEAUTH:
2443 if (event == EVENT_DEAUTH) {
2444 wpa_dbg(wpa_s, MSG_DEBUG,
2445 "Deauthentication notification");
2446 if (data) {
2447 reason_code = data->deauth_info.reason_code;
2448 locally_generated =
2449 data->deauth_info.locally_generated;
2450 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2451 data->deauth_info.reason_code,
2452 data->deauth_info.locally_generated ?
2453 " (locally generated)" : "");
2454 if (data->deauth_info.addr) {
2455 wpa_dbg(wpa_s, MSG_DEBUG, " * address "
2456 MACSTR,
2457 MAC2STR(data->deauth_info.
2458 addr));
2459 }
2460 wpa_hexdump(MSG_DEBUG,
2461 "Deauthentication frame IE(s)",
2462 data->deauth_info.ie,
2463 data->deauth_info.ie_len);
2464 }
2465 }
2466 #ifdef CONFIG_AP
2467 if (wpa_s->ap_iface && data && data->deauth_info.addr) {
2468 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2469 data->deauth_info.addr);
2470 break;
2471 }
2472 if (wpa_s->ap_iface) {
2473 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in "
2474 "AP mode");
2475 break;
2476 }
2477 #endif /* CONFIG_AP */
2478 wpa_supplicant_event_disassoc(wpa_s, reason_code,
2479 locally_generated);
2480 if (reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
2481 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
2482 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
2483 eapol_sm_failed(wpa_s->eapol)))
2484 wpas_auth_failed(wpa_s);
2485 #ifdef CONFIG_P2P
2486 if (event == EVENT_DEAUTH && data) {
2487 if (wpas_p2p_deauth_notif(wpa_s,
2488 data->deauth_info.addr,
2489 reason_code,
2490 data->deauth_info.ie,
2491 data->deauth_info.ie_len,
2492 locally_generated) > 0) {
2493 /*
2494 * The interface was removed, so cannot
2495 * continue processing any additional
2496 * operations after this.
2497 */
2498 break;
2499 }
2500 }
2501 #endif /* CONFIG_P2P */
2502 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
2503 locally_generated);
2504 break;
2505 case EVENT_MICHAEL_MIC_FAILURE:
2506 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
2507 break;
2508 #ifndef CONFIG_NO_SCAN_PROCESSING
2509 case EVENT_SCAN_RESULTS:
2510 wpa_supplicant_event_scan_results(wpa_s, data);
2511 if (wpa_s->wpa_state != WPA_AUTHENTICATING &&
2512 wpa_s->wpa_state != WPA_ASSOCIATING)
2513 wpas_p2p_continue_after_scan(wpa_s);
2514 break;
2515 #endif /* CONFIG_NO_SCAN_PROCESSING */
2516 case EVENT_ASSOCINFO:
2517 wpa_supplicant_event_associnfo(wpa_s, data);
2518 break;
2519 case EVENT_INTERFACE_STATUS:
2520 wpa_supplicant_event_interface_status(wpa_s, data);
2521 break;
2522 case EVENT_PMKID_CANDIDATE:
2523 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
2524 break;
2525 #ifdef CONFIG_PEERKEY
2526 case EVENT_STKSTART:
2527 wpa_supplicant_event_stkstart(wpa_s, data);
2528 break;
2529 #endif /* CONFIG_PEERKEY */
2530 #ifdef CONFIG_TDLS
2531 case EVENT_TDLS:
2532 wpa_supplicant_event_tdls(wpa_s, data);
2533 break;
2534 #endif /* CONFIG_TDLS */
2535 #ifdef CONFIG_WNM
2536 case EVENT_WNM:
2537 wpa_supplicant_event_wnm(wpa_s, data);
2538 break;
2539 #endif /* CONFIG_WNM */
2540 #ifdef CONFIG_IEEE80211R
2541 case EVENT_FT_RESPONSE:
2542 wpa_supplicant_event_ft_response(wpa_s, data);
2543 break;
2544 #endif /* CONFIG_IEEE80211R */
2545 #ifdef CONFIG_IBSS_RSN
2546 case EVENT_IBSS_RSN_START:
2547 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
2548 break;
2549 #endif /* CONFIG_IBSS_RSN */
2550 case EVENT_ASSOC_REJECT:
2551 if (data->assoc_reject.bssid)
2552 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2553 "bssid=" MACSTR " status_code=%u",
2554 MAC2STR(data->assoc_reject.bssid),
2555 data->assoc_reject.status_code);
2556 else
2557 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2558 "status_code=%u",
2559 data->assoc_reject.status_code);
2560 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2561 sme_event_assoc_reject(wpa_s, data);
2562 else {
2563 const u8 *bssid = data->assoc_reject.bssid;
2564 if (bssid == NULL || is_zero_ether_addr(bssid))
2565 bssid = wpa_s->pending_bssid;
2566 wpas_connection_failed(wpa_s, bssid);
2567 wpa_supplicant_mark_disassoc(wpa_s);
2568 }
2569 break;
2570 case EVENT_AUTH_TIMED_OUT:
2571 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2572 sme_event_auth_timed_out(wpa_s, data);
2573 break;
2574 case EVENT_ASSOC_TIMED_OUT:
2575 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2576 sme_event_assoc_timed_out(wpa_s, data);
2577 break;
2578 case EVENT_TX_STATUS:
2579 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
2580 " type=%d stype=%d",
2581 MAC2STR(data->tx_status.dst),
2582 data->tx_status.type, data->tx_status.stype);
2583 #ifdef CONFIG_AP
2584 if (wpa_s->ap_iface == NULL) {
2585 #ifdef CONFIG_OFFCHANNEL
2586 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2587 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
2588 offchannel_send_action_tx_status(
2589 wpa_s, data->tx_status.dst,
2590 data->tx_status.data,
2591 data->tx_status.data_len,
2592 data->tx_status.ack ?
2593 OFFCHANNEL_SEND_ACTION_SUCCESS :
2594 OFFCHANNEL_SEND_ACTION_NO_ACK);
2595 #endif /* CONFIG_OFFCHANNEL */
2596 break;
2597 }
2598 #endif /* CONFIG_AP */
2599 #ifdef CONFIG_OFFCHANNEL
2600 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
2601 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
2602 /*
2603 * Catch TX status events for Action frames we sent via group
2604 * interface in GO mode.
2605 */
2606 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2607 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
2608 os_memcmp(wpa_s->parent->pending_action_dst,
2609 data->tx_status.dst, ETH_ALEN) == 0) {
2610 offchannel_send_action_tx_status(
2611 wpa_s->parent, data->tx_status.dst,
2612 data->tx_status.data,
2613 data->tx_status.data_len,
2614 data->tx_status.ack ?
2615 OFFCHANNEL_SEND_ACTION_SUCCESS :
2616 OFFCHANNEL_SEND_ACTION_NO_ACK);
2617 break;
2618 }
2619 #endif /* CONFIG_OFFCHANNEL */
2620 #ifdef CONFIG_AP
2621 switch (data->tx_status.type) {
2622 case WLAN_FC_TYPE_MGMT:
2623 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
2624 data->tx_status.data_len,
2625 data->tx_status.stype,
2626 data->tx_status.ack);
2627 break;
2628 case WLAN_FC_TYPE_DATA:
2629 ap_tx_status(wpa_s, data->tx_status.dst,
2630 data->tx_status.data,
2631 data->tx_status.data_len,
2632 data->tx_status.ack);
2633 break;
2634 }
2635 #endif /* CONFIG_AP */
2636 break;
2637 #ifdef CONFIG_AP
2638 case EVENT_EAPOL_TX_STATUS:
2639 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
2640 data->eapol_tx_status.data,
2641 data->eapol_tx_status.data_len,
2642 data->eapol_tx_status.ack);
2643 break;
2644 case EVENT_DRIVER_CLIENT_POLL_OK:
2645 ap_client_poll_ok(wpa_s, data->client_poll.addr);
2646 break;
2647 case EVENT_RX_FROM_UNKNOWN:
2648 if (wpa_s->ap_iface == NULL)
2649 break;
2650 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
2651 data->rx_from_unknown.wds);
2652 break;
2653 case EVENT_CH_SWITCH:
2654 if (!data)
2655 break;
2656 if (!wpa_s->ap_iface) {
2657 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch "
2658 "event in non-AP mode");
2659 break;
2660 }
2661
2662 #ifdef CONFIG_AP
2663 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
2664 data->ch_switch.ht_enabled,
2665 data->ch_switch.ch_offset);
2666 #endif /* CONFIG_AP */
2667 break;
2668 case EVENT_RX_MGMT: {
2669 u16 fc, stype;
2670 const struct ieee80211_mgmt *mgmt;
2671
2672 mgmt = (const struct ieee80211_mgmt *)
2673 data->rx_mgmt.frame;
2674 fc = le_to_host16(mgmt->frame_control);
2675 stype = WLAN_FC_GET_STYPE(fc);
2676
2677 if (wpa_s->ap_iface == NULL) {
2678 #ifdef CONFIG_P2P
2679 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2680 data->rx_mgmt.frame_len > 24) {
2681 const u8 *src = mgmt->sa;
2682 const u8 *ie = mgmt->u.probe_req.variable;
2683 size_t ie_len = data->rx_mgmt.frame_len -
2684 (mgmt->u.probe_req.variable -
2685 data->rx_mgmt.frame);
2686 wpas_p2p_probe_req_rx(
2687 wpa_s, src, mgmt->da,
2688 mgmt->bssid, ie, ie_len,
2689 data->rx_mgmt.ssi_signal);
2690 break;
2691 }
2692 #endif /* CONFIG_P2P */
2693 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
2694 "management frame in non-AP mode");
2695 break;
2696 }
2697
2698 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2699 data->rx_mgmt.frame_len > 24) {
2700 const u8 *ie = mgmt->u.probe_req.variable;
2701 size_t ie_len = data->rx_mgmt.frame_len -
2702 (mgmt->u.probe_req.variable -
2703 data->rx_mgmt.frame);
2704
2705 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
2706 mgmt->bssid, ie, ie_len,
2707 data->rx_mgmt.ssi_signal);
2708 }
2709
2710 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
2711 break;
2712 }
2713 #endif /* CONFIG_AP */
2714 case EVENT_RX_ACTION:
2715 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2716 " Category=%u DataLen=%d freq=%d MHz",
2717 MAC2STR(data->rx_action.sa),
2718 data->rx_action.category, (int) data->rx_action.len,
2719 data->rx_action.freq);
2720 #ifdef CONFIG_IEEE80211R
2721 if (data->rx_action.category == WLAN_ACTION_FT) {
2722 ft_rx_action(wpa_s, data->rx_action.data,
2723 data->rx_action.len);
2724 break;
2725 }
2726 #endif /* CONFIG_IEEE80211R */
2727 #ifdef CONFIG_IEEE80211W
2728 #ifdef CONFIG_SME
2729 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) {
2730 sme_sa_query_rx(wpa_s, data->rx_action.sa,
2731 data->rx_action.data,
2732 data->rx_action.len);
2733 break;
2734 }
2735 #endif /* CONFIG_SME */
2736 #endif /* CONFIG_IEEE80211W */
2737 #ifdef CONFIG_WNM
2738 if (data->rx_action.category == WLAN_ACTION_WNM) {
2739 ieee802_11_rx_wnm_action(wpa_s, &data->rx_action);
2740 break;
2741 }
2742 #endif /* CONFIG_WNM */
2743 #ifdef CONFIG_GAS
2744 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2745 gas_query_rx(wpa_s->gas, data->rx_action.da,
2746 data->rx_action.sa, data->rx_action.bssid,
2747 data->rx_action.data, data->rx_action.len,
2748 data->rx_action.freq) == 0)
2749 break;
2750 #endif /* CONFIG_GAS */
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 */
2761 #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,
2778 data->rx_probe_req.da,
2779 data->rx_probe_req.bssid,
2780 data->rx_probe_req.ie,
2781 data->rx_probe_req.ie_len,
2782 data->rx_probe_req.ssi_signal);
2783 break;
2784 }
2785 #endif /* CONFIG_AP */
2786 #ifdef CONFIG_P2P
2787 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
2788 data->rx_probe_req.da,
2789 data->rx_probe_req.bssid,
2790 data->rx_probe_req.ie,
2791 data->rx_probe_req.ie_len,
2792 data->rx_probe_req.ssi_signal);
2793 #endif /* CONFIG_P2P */
2794 break;
2795 case EVENT_REMAIN_ON_CHANNEL:
2796 #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
2802 wpas_p2p_remain_on_channel_cb(
2803 wpa_s, data->remain_on_channel.freq,
2804 data->remain_on_channel.duration);
2805 #endif /* CONFIG_P2P */
2806 break;
2807 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
2808 #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
2813 wpas_p2p_cancel_remain_on_channel_cb(
2814 wpa_s, data->remain_on_channel.freq);
2815 #endif /* CONFIG_P2P */
2816 break;
2817 #ifdef CONFIG_P2P
2818 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,
2860 data->p2p_prov_disc_req.group_capab,
2861 NULL, 0);
2862 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 */
2882 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) {
2897 wpa_supplicant_update_mac_addr(wpa_s);
2898 #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 */
2920
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
2925 #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 */
2962 #ifdef CONFIG_TDLS
2963 if (data)
2964 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr);
2965 #endif /* CONFIG_TDLS */
2966 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;
2972 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;
3000 case EVENT_CONNECT_FAILED_REASON:
3001 #ifdef CONFIG_AP
3002 if (!wpa_s->ap_iface || !data)
3003 break;
3004 hostapd_event_connect_failed_reason(
3005 wpa_s->ap_iface->bss[0],
3006 data->connect_failed_reason.addr,
3007 data->connect_failed_reason.code);
3008 #endif /* CONFIG_AP */
3009 break;
3010 default:
3011 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
3012 break;
3013 }
3014 }
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