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wpa_supplicant: Store driver's RRM capabilities
[thirdparty/hostap.git] / wpa_supplicant / events.c
1 /*
2 * WPA Supplicant - Driver event processing
3 * Copyright (c) 2003-2014, 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 #include "mesh.h"
46 #include "mesh_mpm.h"
47 #include "wmm_ac.h"
48
49
50 #ifndef CONFIG_NO_SCAN_PROCESSING
51 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
52 int new_scan, int own_request);
53 #endif /* CONFIG_NO_SCAN_PROCESSING */
54
55
56 static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
57 struct wpa_ssid *ssid)
58 {
59 struct os_reltime now;
60
61 if (ssid == NULL || ssid->disabled_until.sec == 0)
62 return 0;
63
64 os_get_reltime(&now);
65 if (ssid->disabled_until.sec > now.sec)
66 return ssid->disabled_until.sec - now.sec;
67
68 wpas_clear_temp_disabled(wpa_s, ssid, 0);
69
70 return 0;
71 }
72
73
74 static struct wpa_bss * wpa_supplicant_get_new_bss(
75 struct wpa_supplicant *wpa_s, const u8 *bssid)
76 {
77 struct wpa_bss *bss = NULL;
78 struct wpa_ssid *ssid = wpa_s->current_ssid;
79
80 if (ssid->ssid_len > 0)
81 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
82 if (!bss)
83 bss = wpa_bss_get_bssid(wpa_s, bssid);
84
85 return bss;
86 }
87
88
89 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
90 {
91 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
92
93 if (!bss) {
94 wpa_supplicant_update_scan_results(wpa_s);
95
96 /* Get the BSS from the new scan results */
97 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
98 }
99
100 if (bss)
101 wpa_s->current_bss = bss;
102 }
103
104
105 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
106 {
107 struct wpa_ssid *ssid, *old_ssid;
108 int res;
109
110 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
111 wpa_supplicant_update_current_bss(wpa_s);
112 return 0;
113 }
114
115 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
116 "information");
117 ssid = wpa_supplicant_get_ssid(wpa_s);
118 if (ssid == NULL) {
119 wpa_msg(wpa_s, MSG_INFO,
120 "No network configuration found for the current AP");
121 return -1;
122 }
123
124 if (wpas_network_disabled(wpa_s, ssid)) {
125 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
126 return -1;
127 }
128
129 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
130 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
131 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
132 return -1;
133 }
134
135 res = wpas_temp_disabled(wpa_s, ssid);
136 if (res > 0) {
137 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
138 "disabled for %d second(s)", res);
139 return -1;
140 }
141
142 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
143 "current AP");
144 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
145 u8 wpa_ie[80];
146 size_t wpa_ie_len = sizeof(wpa_ie);
147 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
148 wpa_ie, &wpa_ie_len) < 0)
149 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
150 } else {
151 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
152 }
153
154 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
155 eapol_sm_invalidate_cached_session(wpa_s->eapol);
156 old_ssid = wpa_s->current_ssid;
157 wpa_s->current_ssid = ssid;
158
159 wpa_supplicant_update_current_bss(wpa_s);
160
161 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
162 wpa_supplicant_initiate_eapol(wpa_s);
163 if (old_ssid != wpa_s->current_ssid)
164 wpas_notify_network_changed(wpa_s);
165
166 return 0;
167 }
168
169
170 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
171 {
172 struct wpa_supplicant *wpa_s = eloop_ctx;
173
174 if (wpa_s->countermeasures) {
175 wpa_s->countermeasures = 0;
176 wpa_drv_set_countermeasures(wpa_s, 0);
177 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
178 wpa_supplicant_req_scan(wpa_s, 0, 0);
179 }
180 }
181
182
183 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
184 {
185 int bssid_changed;
186
187 wnm_bss_keep_alive_deinit(wpa_s);
188
189 #ifdef CONFIG_IBSS_RSN
190 ibss_rsn_deinit(wpa_s->ibss_rsn);
191 wpa_s->ibss_rsn = NULL;
192 #endif /* CONFIG_IBSS_RSN */
193
194 #ifdef CONFIG_AP
195 wpa_supplicant_ap_deinit(wpa_s);
196 #endif /* CONFIG_AP */
197
198 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
199 return;
200
201 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
202 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
203 os_memset(wpa_s->bssid, 0, ETH_ALEN);
204 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
205 #ifdef CONFIG_SME
206 wpa_s->sme.prev_bssid_set = 0;
207 #endif /* CONFIG_SME */
208 #ifdef CONFIG_P2P
209 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
210 #endif /* CONFIG_P2P */
211 wpa_s->current_bss = NULL;
212 wpa_s->assoc_freq = 0;
213 #ifdef CONFIG_IEEE80211R
214 #ifdef CONFIG_SME
215 if (wpa_s->sme.ft_ies)
216 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
217 #endif /* CONFIG_SME */
218 #endif /* CONFIG_IEEE80211R */
219
220 if (bssid_changed)
221 wpas_notify_bssid_changed(wpa_s);
222
223 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
224 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
225 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
226 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
227 wpa_s->ap_ies_from_associnfo = 0;
228 wpa_s->current_ssid = NULL;
229 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
230 wpa_s->key_mgmt = 0;
231 }
232
233
234 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
235 {
236 struct wpa_ie_data ie;
237 int pmksa_set = -1;
238 size_t i;
239
240 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
241 ie.pmkid == NULL)
242 return;
243
244 for (i = 0; i < ie.num_pmkid; i++) {
245 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
246 ie.pmkid + i * PMKID_LEN,
247 NULL, NULL, 0);
248 if (pmksa_set == 0) {
249 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
250 break;
251 }
252 }
253
254 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
255 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
256 }
257
258
259 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
260 union wpa_event_data *data)
261 {
262 if (data == NULL) {
263 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
264 "event");
265 return;
266 }
267 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
268 " index=%d preauth=%d",
269 MAC2STR(data->pmkid_candidate.bssid),
270 data->pmkid_candidate.index,
271 data->pmkid_candidate.preauth);
272
273 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
274 data->pmkid_candidate.index,
275 data->pmkid_candidate.preauth);
276 }
277
278
279 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
280 {
281 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
282 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
283 return 0;
284
285 #ifdef IEEE8021X_EAPOL
286 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
287 wpa_s->current_ssid &&
288 !(wpa_s->current_ssid->eapol_flags &
289 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
290 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
291 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
292 * plaintext or static WEP keys). */
293 return 0;
294 }
295 #endif /* IEEE8021X_EAPOL */
296
297 return 1;
298 }
299
300
301 /**
302 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
303 * @wpa_s: pointer to wpa_supplicant data
304 * @ssid: Configuration data for the network
305 * Returns: 0 on success, -1 on failure
306 *
307 * This function is called when starting authentication with a network that is
308 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
309 */
310 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
311 struct wpa_ssid *ssid)
312 {
313 #ifdef IEEE8021X_EAPOL
314 #ifdef PCSC_FUNCS
315 int aka = 0, sim = 0;
316
317 if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
318 wpa_s->scard != NULL || wpa_s->conf->external_sim)
319 return 0;
320
321 if (ssid == NULL || ssid->eap.eap_methods == NULL) {
322 sim = 1;
323 aka = 1;
324 } else {
325 struct eap_method_type *eap = ssid->eap.eap_methods;
326 while (eap->vendor != EAP_VENDOR_IETF ||
327 eap->method != EAP_TYPE_NONE) {
328 if (eap->vendor == EAP_VENDOR_IETF) {
329 if (eap->method == EAP_TYPE_SIM)
330 sim = 1;
331 else if (eap->method == EAP_TYPE_AKA ||
332 eap->method == EAP_TYPE_AKA_PRIME)
333 aka = 1;
334 }
335 eap++;
336 }
337 }
338
339 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
340 sim = 0;
341 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
342 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
343 NULL)
344 aka = 0;
345
346 if (!sim && !aka) {
347 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
348 "use SIM, but neither EAP-SIM nor EAP-AKA are "
349 "enabled");
350 return 0;
351 }
352
353 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
354 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
355
356 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
357 if (wpa_s->scard == NULL) {
358 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
359 "(pcsc-lite)");
360 return -1;
361 }
362 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
363 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
364 #endif /* PCSC_FUNCS */
365 #endif /* IEEE8021X_EAPOL */
366
367 return 0;
368 }
369
370
371 #ifndef CONFIG_NO_SCAN_PROCESSING
372
373 static int has_wep_key(struct wpa_ssid *ssid)
374 {
375 int i;
376
377 for (i = 0; i < NUM_WEP_KEYS; i++) {
378 if (ssid->wep_key_len[i])
379 return 1;
380 }
381
382 return 0;
383 }
384
385
386 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
387 struct wpa_ssid *ssid)
388 {
389 int privacy = 0;
390
391 if (ssid->mixed_cell)
392 return 1;
393
394 #ifdef CONFIG_WPS
395 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
396 return 1;
397 #endif /* CONFIG_WPS */
398
399 if (has_wep_key(ssid))
400 privacy = 1;
401
402 #ifdef IEEE8021X_EAPOL
403 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
404 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
405 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
406 privacy = 1;
407 #endif /* IEEE8021X_EAPOL */
408
409 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
410 privacy = 1;
411
412 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
413 privacy = 1;
414
415 if (bss->caps & IEEE80211_CAP_PRIVACY)
416 return privacy;
417 return !privacy;
418 }
419
420
421 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
422 struct wpa_ssid *ssid,
423 struct wpa_bss *bss)
424 {
425 struct wpa_ie_data ie;
426 int proto_match = 0;
427 const u8 *rsn_ie, *wpa_ie;
428 int ret;
429 int wep_ok;
430
431 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
432 if (ret >= 0)
433 return ret;
434
435 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
436 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
437 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
438 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
439 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
440
441 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
442 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
443 proto_match++;
444
445 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
446 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
447 "failed");
448 break;
449 }
450
451 if (wep_ok &&
452 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
453 {
454 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
455 "in RSN IE");
456 return 1;
457 }
458
459 if (!(ie.proto & ssid->proto)) {
460 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
461 "mismatch");
462 break;
463 }
464
465 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
466 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
467 "cipher mismatch");
468 break;
469 }
470
471 if (!(ie.group_cipher & ssid->group_cipher)) {
472 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
473 "cipher mismatch");
474 break;
475 }
476
477 if (!(ie.key_mgmt & ssid->key_mgmt)) {
478 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
479 "mismatch");
480 break;
481 }
482
483 #ifdef CONFIG_IEEE80211W
484 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
485 (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ?
486 wpa_s->conf->pmf : ssid->ieee80211w) ==
487 MGMT_FRAME_PROTECTION_REQUIRED) {
488 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
489 "frame protection");
490 break;
491 }
492 #endif /* CONFIG_IEEE80211W */
493
494 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
495 return 1;
496 }
497
498 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
499 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
500 proto_match++;
501
502 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
503 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
504 "failed");
505 break;
506 }
507
508 if (wep_ok &&
509 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
510 {
511 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
512 "in WPA IE");
513 return 1;
514 }
515
516 if (!(ie.proto & ssid->proto)) {
517 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
518 "mismatch");
519 break;
520 }
521
522 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
523 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
524 "cipher mismatch");
525 break;
526 }
527
528 if (!(ie.group_cipher & ssid->group_cipher)) {
529 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
530 "cipher mismatch");
531 break;
532 }
533
534 if (!(ie.key_mgmt & ssid->key_mgmt)) {
535 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
536 "mismatch");
537 break;
538 }
539
540 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
541 return 1;
542 }
543
544 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
545 !rsn_ie) {
546 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
547 return 1;
548 }
549
550 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
551 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
552 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
553 return 0;
554 }
555
556 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
557 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
558 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
559 return 1;
560 }
561
562 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
563 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
564 return 1;
565 }
566
567 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
568 "WPA/WPA2");
569
570 return 0;
571 }
572
573
574 static int freq_allowed(int *freqs, int freq)
575 {
576 int i;
577
578 if (freqs == NULL)
579 return 1;
580
581 for (i = 0; freqs[i]; i++)
582 if (freqs[i] == freq)
583 return 1;
584 return 0;
585 }
586
587
588 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
589 {
590 const struct hostapd_hw_modes *mode = NULL, *modes;
591 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
592 const u8 *rate_ie;
593 int i, j, k;
594
595 if (bss->freq == 0)
596 return 1; /* Cannot do matching without knowing band */
597
598 modes = wpa_s->hw.modes;
599 if (modes == NULL) {
600 /*
601 * The driver does not provide any additional information
602 * about the utilized hardware, so allow the connection attempt
603 * to continue.
604 */
605 return 1;
606 }
607
608 for (i = 0; i < wpa_s->hw.num_modes; i++) {
609 for (j = 0; j < modes[i].num_channels; j++) {
610 int freq = modes[i].channels[j].freq;
611 if (freq == bss->freq) {
612 if (mode &&
613 mode->mode == HOSTAPD_MODE_IEEE80211G)
614 break; /* do not allow 802.11b replace
615 * 802.11g */
616 mode = &modes[i];
617 break;
618 }
619 }
620 }
621
622 if (mode == NULL)
623 return 0;
624
625 for (i = 0; i < (int) sizeof(scan_ie); i++) {
626 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
627 if (rate_ie == NULL)
628 continue;
629
630 for (j = 2; j < rate_ie[1] + 2; j++) {
631 int flagged = !!(rate_ie[j] & 0x80);
632 int r = (rate_ie[j] & 0x7f) * 5;
633
634 /*
635 * IEEE Std 802.11n-2009 7.3.2.2:
636 * The new BSS Membership selector value is encoded
637 * like a legacy basic rate, but it is not a rate and
638 * only indicates if the BSS members are required to
639 * support the mandatory features of Clause 20 [HT PHY]
640 * in order to join the BSS.
641 */
642 if (flagged && ((rate_ie[j] & 0x7f) ==
643 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
644 if (!ht_supported(mode)) {
645 wpa_dbg(wpa_s, MSG_DEBUG,
646 " hardware does not support "
647 "HT PHY");
648 return 0;
649 }
650 continue;
651 }
652
653 /* There's also a VHT selector for 802.11ac */
654 if (flagged && ((rate_ie[j] & 0x7f) ==
655 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
656 if (!vht_supported(mode)) {
657 wpa_dbg(wpa_s, MSG_DEBUG,
658 " hardware does not support "
659 "VHT PHY");
660 return 0;
661 }
662 continue;
663 }
664
665 if (!flagged)
666 continue;
667
668 /* check for legacy basic rates */
669 for (k = 0; k < mode->num_rates; k++) {
670 if (mode->rates[k] == r)
671 break;
672 }
673 if (k == mode->num_rates) {
674 /*
675 * IEEE Std 802.11-2007 7.3.2.2 demands that in
676 * order to join a BSS all required rates
677 * have to be supported by the hardware.
678 */
679 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does "
680 "not support required rate %d.%d Mbps",
681 r / 10, r % 10);
682 return 0;
683 }
684 }
685 }
686
687 return 1;
688 }
689
690
691 /*
692 * Test whether BSS is in an ESS.
693 * This is done differently in DMG (60 GHz) and non-DMG bands
694 */
695 static int bss_is_ess(struct wpa_bss *bss)
696 {
697 if (bss_is_dmg(bss)) {
698 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
699 IEEE80211_CAP_DMG_AP;
700 }
701
702 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
703 IEEE80211_CAP_ESS);
704 }
705
706
707 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
708 int i, struct wpa_bss *bss,
709 struct wpa_ssid *group,
710 int only_first_ssid)
711 {
712 u8 wpa_ie_len, rsn_ie_len;
713 int wpa;
714 struct wpa_blacklist *e;
715 const u8 *ie;
716 struct wpa_ssid *ssid;
717 int osen;
718
719 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
720 wpa_ie_len = ie ? ie[1] : 0;
721
722 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
723 rsn_ie_len = ie ? ie[1] : 0;
724
725 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
726 osen = ie != NULL;
727
728 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
729 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s%s%s",
730 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
731 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
732 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "",
733 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
734 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ?
735 " p2p" : "",
736 osen ? " osen=1" : "");
737
738 e = wpa_blacklist_get(wpa_s, bss->bssid);
739 if (e) {
740 int limit = 1;
741 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
742 /*
743 * When only a single network is enabled, we can
744 * trigger blacklisting on the first failure. This
745 * should not be done with multiple enabled networks to
746 * avoid getting forced to move into a worse ESS on
747 * single error if there are no other BSSes of the
748 * current ESS.
749 */
750 limit = 0;
751 }
752 if (e->count > limit) {
753 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
754 "(count=%d limit=%d)", e->count, limit);
755 return NULL;
756 }
757 }
758
759 if (bss->ssid_len == 0) {
760 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
761 return NULL;
762 }
763
764 if (disallowed_bssid(wpa_s, bss->bssid)) {
765 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
766 return NULL;
767 }
768
769 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
770 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
771 return NULL;
772 }
773
774 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
775
776 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
777 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
778 int res;
779
780 if (wpas_network_disabled(wpa_s, ssid)) {
781 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
782 continue;
783 }
784
785 res = wpas_temp_disabled(wpa_s, ssid);
786 if (res > 0) {
787 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
788 "temporarily for %d second(s)", res);
789 continue;
790 }
791
792 #ifdef CONFIG_WPS
793 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
794 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
795 "(WPS)");
796 continue;
797 }
798
799 if (wpa && ssid->ssid_len == 0 &&
800 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
801 check_ssid = 0;
802
803 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
804 /* Only allow wildcard SSID match if an AP
805 * advertises active WPS operation that matches
806 * with our mode. */
807 check_ssid = 1;
808 if (ssid->ssid_len == 0 &&
809 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
810 check_ssid = 0;
811 }
812 #endif /* CONFIG_WPS */
813
814 if (ssid->bssid_set && ssid->ssid_len == 0 &&
815 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
816 check_ssid = 0;
817
818 if (check_ssid &&
819 (bss->ssid_len != ssid->ssid_len ||
820 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
821 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
822 continue;
823 }
824
825 if (ssid->bssid_set &&
826 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
827 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
828 continue;
829 }
830
831 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
832 continue;
833
834 if (!osen && !wpa &&
835 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
836 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
837 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
838 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
839 "not allowed");
840 continue;
841 }
842
843 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
844 has_wep_key(ssid)) {
845 wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block");
846 continue;
847 }
848
849 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) {
850 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-OSEN network "
851 "not allowed");
852 continue;
853 }
854
855 if (!wpa_supplicant_match_privacy(bss, ssid)) {
856 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
857 "mismatch");
858 continue;
859 }
860
861 if (!bss_is_ess(bss)) {
862 wpa_dbg(wpa_s, MSG_DEBUG, " skip - not ESS network");
863 continue;
864 }
865
866 if (!freq_allowed(ssid->freq_list, bss->freq)) {
867 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
868 "allowed");
869 continue;
870 }
871
872 if (!rate_match(wpa_s, bss)) {
873 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
874 "not match");
875 continue;
876 }
877
878 #ifdef CONFIG_P2P
879 if (ssid->p2p_group &&
880 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
881 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
882 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
883 continue;
884 }
885
886 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
887 struct wpabuf *p2p_ie;
888 u8 dev_addr[ETH_ALEN];
889
890 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
891 if (ie == NULL) {
892 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element");
893 continue;
894 }
895 p2p_ie = wpa_bss_get_vendor_ie_multi(
896 bss, P2P_IE_VENDOR_TYPE);
897 if (p2p_ie == NULL) {
898 wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element");
899 continue;
900 }
901
902 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
903 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
904 ETH_ALEN) != 0) {
905 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element");
906 wpabuf_free(p2p_ie);
907 continue;
908 }
909 wpabuf_free(p2p_ie);
910 }
911
912 /*
913 * TODO: skip the AP if its P2P IE has Group Formation
914 * bit set in the P2P Group Capability Bitmap and we
915 * are not in Group Formation with that device.
916 */
917 #endif /* CONFIG_P2P */
918
919 /* Matching configuration found */
920 return ssid;
921 }
922
923 /* No matching configuration found */
924 return NULL;
925 }
926
927
928 static struct wpa_bss *
929 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
930 struct wpa_ssid *group,
931 struct wpa_ssid **selected_ssid,
932 int only_first_ssid)
933 {
934 unsigned int i;
935
936 if (only_first_ssid)
937 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
938 group->id);
939 else
940 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
941 group->priority);
942
943 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
944 struct wpa_bss *bss = wpa_s->last_scan_res[i];
945 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
946 only_first_ssid);
947 if (!*selected_ssid)
948 continue;
949 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
950 " ssid='%s'",
951 MAC2STR(bss->bssid),
952 wpa_ssid_txt(bss->ssid, bss->ssid_len));
953 return bss;
954 }
955
956 return NULL;
957 }
958
959
960 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
961 struct wpa_ssid **selected_ssid)
962 {
963 struct wpa_bss *selected = NULL;
964 int prio;
965 struct wpa_ssid *next_ssid = NULL;
966
967 if (wpa_s->last_scan_res == NULL ||
968 wpa_s->last_scan_res_used == 0)
969 return NULL; /* no scan results from last update */
970
971 if (wpa_s->next_ssid) {
972 struct wpa_ssid *ssid;
973
974 /* check that next_ssid is still valid */
975 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
976 if (ssid == wpa_s->next_ssid)
977 break;
978 }
979 next_ssid = ssid;
980 wpa_s->next_ssid = NULL;
981 }
982
983 while (selected == NULL) {
984 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
985 if (next_ssid && next_ssid->priority ==
986 wpa_s->conf->pssid[prio]->priority) {
987 selected = wpa_supplicant_select_bss(
988 wpa_s, next_ssid, selected_ssid, 1);
989 if (selected)
990 break;
991 }
992 selected = wpa_supplicant_select_bss(
993 wpa_s, wpa_s->conf->pssid[prio],
994 selected_ssid, 0);
995 if (selected)
996 break;
997 }
998
999 if (selected == NULL && wpa_s->blacklist &&
1000 !wpa_s->countermeasures) {
1001 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1002 "blacklist and try again");
1003 wpa_blacklist_clear(wpa_s);
1004 wpa_s->blacklist_cleared++;
1005 } else if (selected == NULL)
1006 break;
1007 }
1008
1009 return selected;
1010 }
1011
1012
1013 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1014 int timeout_sec, int timeout_usec)
1015 {
1016 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1017 /*
1018 * No networks are enabled; short-circuit request so
1019 * we don't wait timeout seconds before transitioning
1020 * to INACTIVE state.
1021 */
1022 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1023 "since there are no enabled networks");
1024 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1025 return;
1026 }
1027
1028 wpa_s->scan_for_connection = 1;
1029 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1030 }
1031
1032
1033 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1034 struct wpa_bss *selected,
1035 struct wpa_ssid *ssid)
1036 {
1037 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1038 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1039 "PBC session overlap");
1040 #ifdef CONFIG_P2P
1041 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1042 wpa_s->p2p_in_provisioning) {
1043 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1044 wpa_s, NULL);
1045 return -1;
1046 }
1047 #endif /* CONFIG_P2P */
1048
1049 #ifdef CONFIG_WPS
1050 wpas_wps_cancel(wpa_s);
1051 #endif /* CONFIG_WPS */
1052 return -1;
1053 }
1054
1055 wpa_msg(wpa_s, MSG_DEBUG,
1056 "Considering connect request: reassociate: %d selected: "
1057 MACSTR " bssid: " MACSTR " pending: " MACSTR
1058 " wpa_state: %s ssid=%p current_ssid=%p",
1059 wpa_s->reassociate, MAC2STR(selected->bssid),
1060 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1061 wpa_supplicant_state_txt(wpa_s->wpa_state),
1062 ssid, wpa_s->current_ssid);
1063
1064 /*
1065 * Do not trigger new association unless the BSSID has changed or if
1066 * reassociation is requested. If we are in process of associating with
1067 * the selected BSSID, do not trigger new attempt.
1068 */
1069 if (wpa_s->reassociate ||
1070 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1071 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1072 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1073 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1074 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1075 0) ||
1076 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1077 ssid != wpa_s->current_ssid)))) {
1078 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1079 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1080 return 0;
1081 }
1082 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1083 MAC2STR(selected->bssid));
1084 wpa_supplicant_associate(wpa_s, selected, ssid);
1085 } else {
1086 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1087 "connect with the selected AP");
1088 }
1089
1090 return 0;
1091 }
1092
1093
1094 static struct wpa_ssid *
1095 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1096 {
1097 int prio;
1098 struct wpa_ssid *ssid;
1099
1100 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1101 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1102 {
1103 if (wpas_network_disabled(wpa_s, ssid))
1104 continue;
1105 if (ssid->mode == IEEE80211_MODE_IBSS ||
1106 ssid->mode == IEEE80211_MODE_AP ||
1107 ssid->mode == IEEE80211_MODE_MESH)
1108 return ssid;
1109 }
1110 }
1111 return NULL;
1112 }
1113
1114
1115 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1116 * on BSS added and BSS changed events */
1117 static void wpa_supplicant_rsn_preauth_scan_results(
1118 struct wpa_supplicant *wpa_s)
1119 {
1120 struct wpa_bss *bss;
1121
1122 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1123 return;
1124
1125 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1126 const u8 *ssid, *rsn;
1127
1128 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1129 if (ssid == NULL)
1130 continue;
1131
1132 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1133 if (rsn == NULL)
1134 continue;
1135
1136 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1137 }
1138
1139 }
1140
1141
1142 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1143 struct wpa_bss *selected,
1144 struct wpa_ssid *ssid)
1145 {
1146 struct wpa_bss *current_bss = NULL;
1147 int min_diff;
1148
1149 if (wpa_s->reassociate)
1150 return 1; /* explicit request to reassociate */
1151 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1152 return 1; /* we are not associated; continue */
1153 if (wpa_s->current_ssid == NULL)
1154 return 1; /* unknown current SSID */
1155 if (wpa_s->current_ssid != ssid)
1156 return 1; /* different network block */
1157
1158 if (wpas_driver_bss_selection(wpa_s))
1159 return 0; /* Driver-based roaming */
1160
1161 if (wpa_s->current_ssid->ssid)
1162 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1163 wpa_s->current_ssid->ssid,
1164 wpa_s->current_ssid->ssid_len);
1165 if (!current_bss)
1166 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1167
1168 if (!current_bss)
1169 return 1; /* current BSS not seen in scan results */
1170
1171 if (current_bss == selected)
1172 return 0;
1173
1174 if (selected->last_update_idx > current_bss->last_update_idx)
1175 return 1; /* current BSS not seen in the last scan */
1176
1177 #ifndef CONFIG_NO_ROAMING
1178 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1179 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
1180 MAC2STR(current_bss->bssid), current_bss->level);
1181 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
1182 MAC2STR(selected->bssid), selected->level);
1183
1184 if (wpa_s->current_ssid->bssid_set &&
1185 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1186 0) {
1187 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1188 "has preferred BSSID");
1189 return 1;
1190 }
1191
1192 if (current_bss->level < 0 && current_bss->level > selected->level) {
1193 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1194 "signal level");
1195 return 0;
1196 }
1197
1198 min_diff = 2;
1199 if (current_bss->level < 0) {
1200 if (current_bss->level < -85)
1201 min_diff = 1;
1202 else if (current_bss->level < -80)
1203 min_diff = 2;
1204 else if (current_bss->level < -75)
1205 min_diff = 3;
1206 else if (current_bss->level < -70)
1207 min_diff = 4;
1208 else
1209 min_diff = 5;
1210 }
1211 if (abs(current_bss->level - selected->level) < min_diff) {
1212 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1213 "in signal level");
1214 return 0;
1215 }
1216
1217 return 1;
1218 #else /* CONFIG_NO_ROAMING */
1219 return 0;
1220 #endif /* CONFIG_NO_ROAMING */
1221 }
1222
1223
1224 /* Return != 0 if no scan results could be fetched or if scan results should not
1225 * be shared with other virtual interfaces. */
1226 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1227 union wpa_event_data *data,
1228 int own_request)
1229 {
1230 struct wpa_scan_results *scan_res = NULL;
1231 int ret = 0;
1232 int ap = 0;
1233 #ifndef CONFIG_NO_RANDOM_POOL
1234 size_t i, num;
1235 #endif /* CONFIG_NO_RANDOM_POOL */
1236
1237 #ifdef CONFIG_AP
1238 if (wpa_s->ap_iface)
1239 ap = 1;
1240 #endif /* CONFIG_AP */
1241
1242 wpa_supplicant_notify_scanning(wpa_s, 0);
1243
1244 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1245 data ? &data->scan_info :
1246 NULL, 1);
1247 if (scan_res == NULL) {
1248 if (wpa_s->conf->ap_scan == 2 || ap ||
1249 wpa_s->scan_res_handler == scan_only_handler)
1250 return -1;
1251 if (!own_request)
1252 return -1;
1253 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1254 "scanning again");
1255 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1256 ret = -1;
1257 goto scan_work_done;
1258 }
1259
1260 #ifndef CONFIG_NO_RANDOM_POOL
1261 num = scan_res->num;
1262 if (num > 10)
1263 num = 10;
1264 for (i = 0; i < num; i++) {
1265 u8 buf[5];
1266 struct wpa_scan_res *res = scan_res->res[i];
1267 buf[0] = res->bssid[5];
1268 buf[1] = res->qual & 0xff;
1269 buf[2] = res->noise & 0xff;
1270 buf[3] = res->level & 0xff;
1271 buf[4] = res->tsf & 0xff;
1272 random_add_randomness(buf, sizeof(buf));
1273 }
1274 #endif /* CONFIG_NO_RANDOM_POOL */
1275
1276 if (own_request && wpa_s->scan_res_handler &&
1277 (wpa_s->own_scan_running || !wpa_s->external_scan_running)) {
1278 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1279 struct wpa_scan_results *scan_res);
1280
1281 scan_res_handler = wpa_s->scan_res_handler;
1282 wpa_s->scan_res_handler = NULL;
1283 scan_res_handler(wpa_s, scan_res);
1284 ret = -2;
1285 goto scan_work_done;
1286 }
1287
1288 if (ap) {
1289 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1290 #ifdef CONFIG_AP
1291 if (wpa_s->ap_iface->scan_cb)
1292 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1293 #endif /* CONFIG_AP */
1294 goto scan_work_done;
1295 }
1296
1297 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1298 wpa_s->own_scan_running, wpa_s->external_scan_running);
1299 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1300 wpa_s->manual_scan_use_id && wpa_s->own_scan_running) {
1301 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1302 wpa_s->manual_scan_id);
1303 wpa_s->manual_scan_use_id = 0;
1304 } else {
1305 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1306 }
1307 wpas_notify_scan_results(wpa_s);
1308
1309 wpas_notify_scan_done(wpa_s, 1);
1310
1311 if (!wpa_s->own_scan_running && wpa_s->external_scan_running) {
1312 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1313 wpa_scan_results_free(scan_res);
1314 return 0;
1315 }
1316
1317 if (wnm_scan_process(wpa_s, 1) > 0)
1318 goto scan_work_done;
1319
1320 if (sme_proc_obss_scan(wpa_s) > 0)
1321 goto scan_work_done;
1322
1323 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1324 goto scan_work_done;
1325
1326 if (autoscan_notify_scan(wpa_s, scan_res))
1327 goto scan_work_done;
1328
1329 if (wpa_s->disconnected) {
1330 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1331 goto scan_work_done;
1332 }
1333
1334 if (!wpas_driver_bss_selection(wpa_s) &&
1335 bgscan_notify_scan(wpa_s, scan_res) == 1)
1336 goto scan_work_done;
1337
1338 wpas_wps_update_ap_info(wpa_s, scan_res);
1339
1340 wpa_scan_results_free(scan_res);
1341
1342 if (wpa_s->scan_work) {
1343 struct wpa_radio_work *work = wpa_s->scan_work;
1344 wpa_s->scan_work = NULL;
1345 radio_work_done(work);
1346 }
1347
1348 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
1349
1350 scan_work_done:
1351 wpa_scan_results_free(scan_res);
1352 if (wpa_s->scan_work) {
1353 struct wpa_radio_work *work = wpa_s->scan_work;
1354 wpa_s->scan_work = NULL;
1355 radio_work_done(work);
1356 }
1357 return ret;
1358 }
1359
1360
1361 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
1362 int new_scan, int own_request)
1363 {
1364 struct wpa_bss *selected;
1365 struct wpa_ssid *ssid = NULL;
1366
1367 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1368
1369 if (selected) {
1370 int skip;
1371 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1372 if (skip) {
1373 if (new_scan)
1374 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1375 return 0;
1376 }
1377
1378 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1379 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1380 return -1;
1381 }
1382 if (new_scan)
1383 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1384 /*
1385 * Do not notify other virtual radios of scan results since we do not
1386 * want them to start other associations at the same time.
1387 */
1388 return 1;
1389 } else {
1390 #ifdef CONFIG_MESH
1391 if (wpa_s->ifmsh) {
1392 wpa_msg(wpa_s, MSG_INFO,
1393 "Avoiding join because we already joined a mesh group");
1394 return 0;
1395 }
1396 #endif /* CONFIG_MESH */
1397 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1398 ssid = wpa_supplicant_pick_new_network(wpa_s);
1399 if (ssid) {
1400 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1401 wpa_supplicant_associate(wpa_s, NULL, ssid);
1402 if (new_scan)
1403 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1404 } else if (own_request) {
1405 /*
1406 * No SSID found. If SCAN results are as a result of
1407 * own scan request and not due to a scan request on
1408 * another shared interface, try another scan.
1409 */
1410 int timeout_sec = wpa_s->scan_interval;
1411 int timeout_usec = 0;
1412 #ifdef CONFIG_P2P
1413 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1)
1414 return 0;
1415
1416 if (wpa_s->p2p_in_provisioning ||
1417 wpa_s->show_group_started ||
1418 wpa_s->p2p_in_invitation) {
1419 /*
1420 * Use shorter wait during P2P Provisioning
1421 * state and during P2P join-a-group operation
1422 * to speed up group formation.
1423 */
1424 timeout_sec = 0;
1425 timeout_usec = 250000;
1426 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1427 timeout_usec);
1428 return 0;
1429 }
1430 #endif /* CONFIG_P2P */
1431 #ifdef CONFIG_INTERWORKING
1432 if (wpa_s->conf->auto_interworking &&
1433 wpa_s->conf->interworking &&
1434 wpa_s->conf->cred) {
1435 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1436 "start ANQP fetch since no matching "
1437 "networks found");
1438 wpa_s->network_select = 1;
1439 wpa_s->auto_network_select = 1;
1440 interworking_start_fetch_anqp(wpa_s);
1441 return 1;
1442 }
1443 #endif /* CONFIG_INTERWORKING */
1444 #ifdef CONFIG_WPS
1445 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
1446 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1447 timeout_sec = 0;
1448 timeout_usec = 500000;
1449 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1450 timeout_usec);
1451 return 0;
1452 }
1453 #endif /* CONFIG_WPS */
1454 if (wpa_supplicant_req_sched_scan(wpa_s))
1455 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1456 timeout_usec);
1457 }
1458 }
1459 return 0;
1460 }
1461
1462
1463 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1464 union wpa_event_data *data)
1465 {
1466 struct wpa_supplicant *ifs;
1467
1468 if (_wpa_supplicant_event_scan_results(wpa_s, data, 1) != 0) {
1469 /*
1470 * If no scan results could be fetched, then no need to
1471 * notify those interfaces that did not actually request
1472 * this scan. Similarly, if scan results started a new operation on this
1473 * interface, do not notify other interfaces to avoid concurrent
1474 * operations during a connection attempt.
1475 */
1476 return;
1477 }
1478
1479 /*
1480 * Check other interfaces to see if they share the same radio. If
1481 * so, they get updated with this same scan info.
1482 */
1483 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1484 radio_list) {
1485 if (ifs != wpa_s) {
1486 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1487 "sibling", ifs->ifname);
1488 _wpa_supplicant_event_scan_results(ifs, data, 0);
1489 }
1490 }
1491 }
1492
1493 #endif /* CONFIG_NO_SCAN_PROCESSING */
1494
1495
1496 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1497 {
1498 #ifdef CONFIG_NO_SCAN_PROCESSING
1499 return -1;
1500 #else /* CONFIG_NO_SCAN_PROCESSING */
1501 struct os_reltime now;
1502
1503 if (wpa_s->last_scan_res_used <= 0)
1504 return -1;
1505
1506 os_get_reltime(&now);
1507 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
1508 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1509 return -1;
1510 }
1511
1512 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
1513 #endif /* CONFIG_NO_SCAN_PROCESSING */
1514 }
1515
1516 #ifdef CONFIG_WNM
1517
1518 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1519 {
1520 struct wpa_supplicant *wpa_s = eloop_ctx;
1521
1522 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1523 return;
1524
1525 if (!wpa_s->no_keep_alive) {
1526 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1527 MAC2STR(wpa_s->bssid));
1528 /* TODO: could skip this if normal data traffic has been sent */
1529 /* TODO: Consider using some more appropriate data frame for
1530 * this */
1531 if (wpa_s->l2)
1532 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1533 (u8 *) "", 0);
1534 }
1535
1536 #ifdef CONFIG_SME
1537 if (wpa_s->sme.bss_max_idle_period) {
1538 unsigned int msec;
1539 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1540 if (msec > 100)
1541 msec -= 100;
1542 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1543 wnm_bss_keep_alive, wpa_s, NULL);
1544 }
1545 #endif /* CONFIG_SME */
1546 }
1547
1548
1549 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1550 const u8 *ies, size_t ies_len)
1551 {
1552 struct ieee802_11_elems elems;
1553
1554 if (ies == NULL)
1555 return;
1556
1557 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1558 return;
1559
1560 #ifdef CONFIG_SME
1561 if (elems.bss_max_idle_period) {
1562 unsigned int msec;
1563 wpa_s->sme.bss_max_idle_period =
1564 WPA_GET_LE16(elems.bss_max_idle_period);
1565 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1566 "TU)%s", wpa_s->sme.bss_max_idle_period,
1567 (elems.bss_max_idle_period[2] & 0x01) ?
1568 " (protected keep-live required)" : "");
1569 if (wpa_s->sme.bss_max_idle_period == 0)
1570 wpa_s->sme.bss_max_idle_period = 1;
1571 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1572 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1573 /* msec times 1000 */
1574 msec = wpa_s->sme.bss_max_idle_period * 1024;
1575 if (msec > 100)
1576 msec -= 100;
1577 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1578 wnm_bss_keep_alive, wpa_s,
1579 NULL);
1580 }
1581 }
1582 #endif /* CONFIG_SME */
1583 }
1584
1585 #endif /* CONFIG_WNM */
1586
1587
1588 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1589 {
1590 #ifdef CONFIG_WNM
1591 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1592 #endif /* CONFIG_WNM */
1593 }
1594
1595
1596 #ifdef CONFIG_INTERWORKING
1597
1598 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1599 size_t len)
1600 {
1601 int res;
1602
1603 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1604 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1605 if (res) {
1606 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1607 }
1608
1609 return res;
1610 }
1611
1612
1613 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1614 const u8 *ies, size_t ies_len)
1615 {
1616 struct ieee802_11_elems elems;
1617
1618 if (ies == NULL)
1619 return;
1620
1621 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1622 return;
1623
1624 if (elems.qos_map_set) {
1625 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1626 elems.qos_map_set_len);
1627 }
1628 }
1629
1630 #endif /* CONFIG_INTERWORKING */
1631
1632
1633 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1634 union wpa_event_data *data)
1635 {
1636 int l, len, found = 0, wpa_found, rsn_found;
1637 const u8 *p;
1638 #ifdef CONFIG_IEEE80211R
1639 u8 bssid[ETH_ALEN];
1640 #endif /* CONFIG_IEEE80211R */
1641
1642 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1643 if (data->assoc_info.req_ies)
1644 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1645 data->assoc_info.req_ies_len);
1646 if (data->assoc_info.resp_ies) {
1647 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1648 data->assoc_info.resp_ies_len);
1649 #ifdef CONFIG_TDLS
1650 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1651 data->assoc_info.resp_ies_len);
1652 #endif /* CONFIG_TDLS */
1653 #ifdef CONFIG_WNM
1654 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1655 data->assoc_info.resp_ies_len);
1656 #endif /* CONFIG_WNM */
1657 #ifdef CONFIG_INTERWORKING
1658 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1659 data->assoc_info.resp_ies_len);
1660 #endif /* CONFIG_INTERWORKING */
1661 }
1662 if (data->assoc_info.beacon_ies)
1663 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1664 data->assoc_info.beacon_ies,
1665 data->assoc_info.beacon_ies_len);
1666 if (data->assoc_info.freq)
1667 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1668 data->assoc_info.freq);
1669
1670 p = data->assoc_info.req_ies;
1671 l = data->assoc_info.req_ies_len;
1672
1673 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1674 while (p && l >= 2) {
1675 len = p[1] + 2;
1676 if (len > l) {
1677 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1678 p, l);
1679 break;
1680 }
1681 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1682 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1683 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1684 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1685 break;
1686 found = 1;
1687 wpa_find_assoc_pmkid(wpa_s);
1688 break;
1689 }
1690 l -= len;
1691 p += len;
1692 }
1693 if (!found && data->assoc_info.req_ies)
1694 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1695
1696 #ifdef CONFIG_IEEE80211R
1697 #ifdef CONFIG_SME
1698 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1699 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1700 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1701 data->assoc_info.resp_ies,
1702 data->assoc_info.resp_ies_len,
1703 bssid) < 0) {
1704 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1705 "Reassociation Response failed");
1706 wpa_supplicant_deauthenticate(
1707 wpa_s, WLAN_REASON_INVALID_IE);
1708 return -1;
1709 }
1710 }
1711
1712 p = data->assoc_info.resp_ies;
1713 l = data->assoc_info.resp_ies_len;
1714
1715 #ifdef CONFIG_WPS_STRICT
1716 if (p && wpa_s->current_ssid &&
1717 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1718 struct wpabuf *wps;
1719 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1720 if (wps == NULL) {
1721 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1722 "include WPS IE in (Re)Association Response");
1723 return -1;
1724 }
1725
1726 if (wps_validate_assoc_resp(wps) < 0) {
1727 wpabuf_free(wps);
1728 wpa_supplicant_deauthenticate(
1729 wpa_s, WLAN_REASON_INVALID_IE);
1730 return -1;
1731 }
1732 wpabuf_free(wps);
1733 }
1734 #endif /* CONFIG_WPS_STRICT */
1735
1736 /* Go through the IEs and make a copy of the MDIE, if present. */
1737 while (p && l >= 2) {
1738 len = p[1] + 2;
1739 if (len > l) {
1740 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1741 p, l);
1742 break;
1743 }
1744 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1745 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1746 wpa_s->sme.ft_used = 1;
1747 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1748 MOBILITY_DOMAIN_ID_LEN);
1749 break;
1750 }
1751 l -= len;
1752 p += len;
1753 }
1754 #endif /* CONFIG_SME */
1755
1756 /* Process FT when SME is in the driver */
1757 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
1758 wpa_ft_is_completed(wpa_s->wpa)) {
1759 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1760 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1761 data->assoc_info.resp_ies,
1762 data->assoc_info.resp_ies_len,
1763 bssid) < 0) {
1764 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1765 "Reassociation Response failed");
1766 wpa_supplicant_deauthenticate(
1767 wpa_s, WLAN_REASON_INVALID_IE);
1768 return -1;
1769 }
1770 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
1771 }
1772
1773 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1774 data->assoc_info.resp_ies_len);
1775 #endif /* CONFIG_IEEE80211R */
1776
1777 /* WPA/RSN IE from Beacon/ProbeResp */
1778 p = data->assoc_info.beacon_ies;
1779 l = data->assoc_info.beacon_ies_len;
1780
1781 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1782 */
1783 wpa_found = rsn_found = 0;
1784 while (p && l >= 2) {
1785 len = p[1] + 2;
1786 if (len > l) {
1787 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1788 p, l);
1789 break;
1790 }
1791 if (!wpa_found &&
1792 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1793 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1794 wpa_found = 1;
1795 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1796 }
1797
1798 if (!rsn_found &&
1799 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1800 rsn_found = 1;
1801 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1802 }
1803
1804 l -= len;
1805 p += len;
1806 }
1807
1808 if (!wpa_found && data->assoc_info.beacon_ies)
1809 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1810 if (!rsn_found && data->assoc_info.beacon_ies)
1811 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1812 if (wpa_found || rsn_found)
1813 wpa_s->ap_ies_from_associnfo = 1;
1814
1815 if (wpa_s->assoc_freq && data->assoc_info.freq &&
1816 wpa_s->assoc_freq != data->assoc_info.freq) {
1817 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1818 "%u to %u MHz",
1819 wpa_s->assoc_freq, data->assoc_info.freq);
1820 wpa_supplicant_update_scan_results(wpa_s);
1821 }
1822
1823 wpa_s->assoc_freq = data->assoc_info.freq;
1824
1825 return 0;
1826 }
1827
1828
1829 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
1830 {
1831 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
1832
1833 if (!wpa_s->current_bss || !wpa_s->current_ssid)
1834 return -1;
1835
1836 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
1837 return 0;
1838
1839 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
1840 WPA_IE_VENDOR_TYPE);
1841 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
1842
1843 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1844 bss_wpa ? 2 + bss_wpa[1] : 0) ||
1845 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1846 bss_rsn ? 2 + bss_rsn[1] : 0))
1847 return -1;
1848
1849 return 0;
1850 }
1851
1852
1853 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1854 union wpa_event_data *data)
1855 {
1856 u8 bssid[ETH_ALEN];
1857 int ft_completed;
1858
1859 #ifdef CONFIG_AP
1860 if (wpa_s->ap_iface) {
1861 if (!data)
1862 return;
1863 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1864 data->assoc_info.addr,
1865 data->assoc_info.req_ies,
1866 data->assoc_info.req_ies_len,
1867 data->assoc_info.reassoc);
1868 return;
1869 }
1870 #endif /* CONFIG_AP */
1871
1872 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1873 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1874 return;
1875
1876 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
1877 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
1878 wpa_supplicant_deauthenticate(
1879 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1880 return;
1881 }
1882
1883 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
1884 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
1885 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1886 MACSTR, MAC2STR(bssid));
1887 random_add_randomness(bssid, ETH_ALEN);
1888 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1889 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1890 wpas_notify_bssid_changed(wpa_s);
1891
1892 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1893 wpa_clear_keys(wpa_s, bssid);
1894 }
1895 if (wpa_supplicant_select_config(wpa_s) < 0) {
1896 wpa_supplicant_deauthenticate(
1897 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1898 return;
1899 }
1900
1901 if (wpa_s->conf->ap_scan == 1 &&
1902 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
1903 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0)
1904 wpa_msg(wpa_s, MSG_WARNING,
1905 "WPA/RSN IEs not updated");
1906 }
1907 }
1908
1909 #ifdef CONFIG_SME
1910 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1911 wpa_s->sme.prev_bssid_set = 1;
1912 wpa_s->sme.last_unprot_disconnect.sec = 0;
1913 #endif /* CONFIG_SME */
1914
1915 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1916 if (wpa_s->current_ssid) {
1917 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1918 * initialized before association, but for other modes,
1919 * initialize PC/SC here, if the current configuration needs
1920 * smartcard or SIM/USIM. */
1921 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1922 }
1923 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1924 if (wpa_s->l2)
1925 l2_packet_notify_auth_start(wpa_s->l2);
1926
1927 /*
1928 * Set portEnabled first to FALSE in order to get EAP state machine out
1929 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1930 * state machine may transit to AUTHENTICATING state based on obsolete
1931 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1932 * AUTHENTICATED without ever giving chance to EAP state machine to
1933 * reset the state.
1934 */
1935 if (!ft_completed) {
1936 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1937 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1938 }
1939 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1940 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1941 /* 802.1X::portControl = Auto */
1942 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1943 wpa_s->eapol_received = 0;
1944 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1945 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1946 (wpa_s->current_ssid &&
1947 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1948 if (wpa_s->current_ssid &&
1949 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
1950 (wpa_s->drv_flags &
1951 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
1952 /*
1953 * Set the key after having received joined-IBSS event
1954 * from the driver.
1955 */
1956 wpa_supplicant_set_wpa_none_key(wpa_s,
1957 wpa_s->current_ssid);
1958 }
1959 wpa_supplicant_cancel_auth_timeout(wpa_s);
1960 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1961 } else if (!ft_completed) {
1962 /* Timeout for receiving the first EAPOL packet */
1963 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1964 }
1965 wpa_supplicant_cancel_scan(wpa_s);
1966
1967 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1968 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1969 /*
1970 * We are done; the driver will take care of RSN 4-way
1971 * handshake.
1972 */
1973 wpa_supplicant_cancel_auth_timeout(wpa_s);
1974 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1975 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1976 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1977 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1978 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1979 /*
1980 * The driver will take care of RSN 4-way handshake, so we need
1981 * to allow EAPOL supplicant to complete its work without
1982 * waiting for WPA supplicant.
1983 */
1984 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1985 } else if (ft_completed) {
1986 /*
1987 * FT protocol completed - make sure EAPOL state machine ends
1988 * up in authenticated.
1989 */
1990 wpa_supplicant_cancel_auth_timeout(wpa_s);
1991 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1992 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1993 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1994 }
1995
1996 wpa_s->last_eapol_matches_bssid = 0;
1997
1998 if (wpa_s->pending_eapol_rx) {
1999 struct os_reltime now, age;
2000 os_get_reltime(&now);
2001 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
2002 if (age.sec == 0 && age.usec < 100000 &&
2003 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2004 0) {
2005 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2006 "frame that was received just before "
2007 "association notification");
2008 wpa_supplicant_rx_eapol(
2009 wpa_s, wpa_s->pending_eapol_rx_src,
2010 wpabuf_head(wpa_s->pending_eapol_rx),
2011 wpabuf_len(wpa_s->pending_eapol_rx));
2012 }
2013 wpabuf_free(wpa_s->pending_eapol_rx);
2014 wpa_s->pending_eapol_rx = NULL;
2015 }
2016
2017 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2018 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
2019 wpa_s->current_ssid &&
2020 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2021 /* Set static WEP keys again */
2022 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2023 }
2024
2025 #ifdef CONFIG_IBSS_RSN
2026 if (wpa_s->current_ssid &&
2027 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2028 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2029 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2030 wpa_s->ibss_rsn == NULL) {
2031 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2032 if (!wpa_s->ibss_rsn) {
2033 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2034 wpa_supplicant_deauthenticate(
2035 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2036 return;
2037 }
2038
2039 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2040 }
2041 #endif /* CONFIG_IBSS_RSN */
2042
2043 wpas_wps_notify_assoc(wpa_s, bssid);
2044
2045 if (data) {
2046 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2047 data->assoc_info.resp_ies_len,
2048 &data->assoc_info.wmm_params);
2049 }
2050 }
2051
2052
2053 static int disconnect_reason_recoverable(u16 reason_code)
2054 {
2055 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2056 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2057 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2058 }
2059
2060
2061 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
2062 u16 reason_code,
2063 int locally_generated)
2064 {
2065 const u8 *bssid;
2066
2067 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2068 /*
2069 * At least Host AP driver and a Prism3 card seemed to be
2070 * generating streams of disconnected events when configuring
2071 * IBSS for WPA-None. Ignore them for now.
2072 */
2073 return;
2074 }
2075
2076 bssid = wpa_s->bssid;
2077 if (is_zero_ether_addr(bssid))
2078 bssid = wpa_s->pending_bssid;
2079
2080 if (!is_zero_ether_addr(bssid) ||
2081 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2082 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2083 " reason=%d%s",
2084 MAC2STR(bssid), reason_code,
2085 locally_generated ? " locally_generated=1" : "");
2086 }
2087 }
2088
2089
2090 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2091 int locally_generated)
2092 {
2093 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2094 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2095 return 0; /* Not in 4-way handshake with PSK */
2096
2097 /*
2098 * It looks like connection was lost while trying to go through PSK
2099 * 4-way handshake. Filter out known disconnection cases that are caused
2100 * by something else than PSK mismatch to avoid confusing reports.
2101 */
2102
2103 if (locally_generated) {
2104 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2105 return 0;
2106 }
2107
2108 return 1;
2109 }
2110
2111
2112 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2113 u16 reason_code,
2114 int locally_generated)
2115 {
2116 const u8 *bssid;
2117 int authenticating;
2118 u8 prev_pending_bssid[ETH_ALEN];
2119 struct wpa_bss *fast_reconnect = NULL;
2120 struct wpa_ssid *fast_reconnect_ssid = NULL;
2121 struct wpa_ssid *last_ssid;
2122
2123 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2124 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
2125
2126 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2127 /*
2128 * At least Host AP driver and a Prism3 card seemed to be
2129 * generating streams of disconnected events when configuring
2130 * IBSS for WPA-None. Ignore them for now.
2131 */
2132 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2133 "IBSS/WPA-None mode");
2134 return;
2135 }
2136
2137 wmm_ac_notify_disassoc(wpa_s);
2138
2139 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
2140 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2141 "pre-shared key may be incorrect");
2142 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2143 return; /* P2P group removed */
2144 wpas_auth_failed(wpa_s, "WRONG_KEY");
2145 }
2146 if (!wpa_s->disconnected &&
2147 (!wpa_s->auto_reconnect_disabled ||
2148 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
2149 wpas_wps_searching(wpa_s))) {
2150 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
2151 "reconnect (wps=%d/%d wpa_state=%d)",
2152 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2153 wpas_wps_searching(wpa_s),
2154 wpa_s->wpa_state);
2155 if (wpa_s->wpa_state == WPA_COMPLETED &&
2156 wpa_s->current_ssid &&
2157 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
2158 !locally_generated &&
2159 disconnect_reason_recoverable(reason_code)) {
2160 /*
2161 * It looks like the AP has dropped association with
2162 * us, but could allow us to get back in. Try to
2163 * reconnect to the same BSS without full scan to save
2164 * time for some common cases.
2165 */
2166 fast_reconnect = wpa_s->current_bss;
2167 fast_reconnect_ssid = wpa_s->current_ssid;
2168 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
2169 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2170 else
2171 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2172 "immediate scan");
2173 } else {
2174 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
2175 "try to re-connect");
2176 wpa_s->reassociate = 0;
2177 wpa_s->disconnected = 1;
2178 wpa_supplicant_cancel_sched_scan(wpa_s);
2179 }
2180 bssid = wpa_s->bssid;
2181 if (is_zero_ether_addr(bssid))
2182 bssid = wpa_s->pending_bssid;
2183 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2184 wpas_connection_failed(wpa_s, bssid);
2185 wpa_sm_notify_disassoc(wpa_s->wpa);
2186 if (locally_generated)
2187 wpa_s->disconnect_reason = -reason_code;
2188 else
2189 wpa_s->disconnect_reason = reason_code;
2190 wpas_notify_disconnect_reason(wpa_s);
2191 if (wpa_supplicant_dynamic_keys(wpa_s)) {
2192 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
2193 wpa_clear_keys(wpa_s, wpa_s->bssid);
2194 }
2195 last_ssid = wpa_s->current_ssid;
2196 wpa_supplicant_mark_disassoc(wpa_s);
2197
2198 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2199 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2200 wpa_s->current_ssid = last_ssid;
2201 }
2202
2203 if (fast_reconnect &&
2204 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2205 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2206 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2207 fast_reconnect->ssid_len) &&
2208 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid)) {
2209 #ifndef CONFIG_NO_SCAN_PROCESSING
2210 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2211 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2212 fast_reconnect_ssid) < 0) {
2213 /* Recover through full scan */
2214 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2215 }
2216 #endif /* CONFIG_NO_SCAN_PROCESSING */
2217 } else if (fast_reconnect) {
2218 /*
2219 * Could not reconnect to the same BSS due to network being
2220 * disabled. Use a new scan to match the alternative behavior
2221 * above, i.e., to continue automatic reconnection attempt in a
2222 * way that enforces disabled network rules.
2223 */
2224 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2225 }
2226 }
2227
2228
2229 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2230 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
2231 {
2232 struct wpa_supplicant *wpa_s = eloop_ctx;
2233
2234 if (!wpa_s->pending_mic_error_report)
2235 return;
2236
2237 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2238 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2239 wpa_s->pending_mic_error_report = 0;
2240 }
2241 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2242
2243
2244 static void
2245 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2246 union wpa_event_data *data)
2247 {
2248 int pairwise;
2249 struct os_reltime t;
2250
2251 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2252 pairwise = (data && data->michael_mic_failure.unicast);
2253 os_get_reltime(&t);
2254 if ((wpa_s->last_michael_mic_error.sec &&
2255 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
2256 wpa_s->pending_mic_error_report) {
2257 if (wpa_s->pending_mic_error_report) {
2258 /*
2259 * Send the pending MIC error report immediately since
2260 * we are going to start countermeasures and AP better
2261 * do the same.
2262 */
2263 wpa_sm_key_request(wpa_s->wpa, 1,
2264 wpa_s->pending_mic_error_pairwise);
2265 }
2266
2267 /* Send the new MIC error report immediately since we are going
2268 * to start countermeasures and AP better do the same.
2269 */
2270 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2271
2272 /* initialize countermeasures */
2273 wpa_s->countermeasures = 1;
2274
2275 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2276
2277 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2278
2279 /*
2280 * Need to wait for completion of request frame. We do not get
2281 * any callback for the message completion, so just wait a
2282 * short while and hope for the best. */
2283 os_sleep(0, 10000);
2284
2285 wpa_drv_set_countermeasures(wpa_s, 1);
2286 wpa_supplicant_deauthenticate(wpa_s,
2287 WLAN_REASON_MICHAEL_MIC_FAILURE);
2288 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2289 wpa_s, NULL);
2290 eloop_register_timeout(60, 0,
2291 wpa_supplicant_stop_countermeasures,
2292 wpa_s, NULL);
2293 /* TODO: mark the AP rejected for 60 second. STA is
2294 * allowed to associate with another AP.. */
2295 } else {
2296 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2297 if (wpa_s->mic_errors_seen) {
2298 /*
2299 * Reduce the effectiveness of Michael MIC error
2300 * reports as a means for attacking against TKIP if
2301 * more than one MIC failure is noticed with the same
2302 * PTK. We delay the transmission of the reports by a
2303 * random time between 0 and 60 seconds in order to
2304 * force the attacker wait 60 seconds before getting
2305 * the information on whether a frame resulted in a MIC
2306 * failure.
2307 */
2308 u8 rval[4];
2309 int sec;
2310
2311 if (os_get_random(rval, sizeof(rval)) < 0)
2312 sec = os_random() % 60;
2313 else
2314 sec = WPA_GET_BE32(rval) % 60;
2315 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2316 "report %d seconds", sec);
2317 wpa_s->pending_mic_error_report = 1;
2318 wpa_s->pending_mic_error_pairwise = pairwise;
2319 eloop_cancel_timeout(
2320 wpa_supplicant_delayed_mic_error_report,
2321 wpa_s, NULL);
2322 eloop_register_timeout(
2323 sec, os_random() % 1000000,
2324 wpa_supplicant_delayed_mic_error_report,
2325 wpa_s, NULL);
2326 } else {
2327 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2328 }
2329 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2330 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2331 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2332 }
2333 wpa_s->last_michael_mic_error = t;
2334 wpa_s->mic_errors_seen++;
2335 }
2336
2337
2338 #ifdef CONFIG_TERMINATE_ONLASTIF
2339 static int any_interfaces(struct wpa_supplicant *head)
2340 {
2341 struct wpa_supplicant *wpa_s;
2342
2343 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2344 if (!wpa_s->interface_removed)
2345 return 1;
2346 return 0;
2347 }
2348 #endif /* CONFIG_TERMINATE_ONLASTIF */
2349
2350
2351 static void
2352 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2353 union wpa_event_data *data)
2354 {
2355 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2356 return;
2357
2358 switch (data->interface_status.ievent) {
2359 case EVENT_INTERFACE_ADDED:
2360 if (!wpa_s->interface_removed)
2361 break;
2362 wpa_s->interface_removed = 0;
2363 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2364 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2365 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2366 "driver after interface was added");
2367 }
2368 break;
2369 case EVENT_INTERFACE_REMOVED:
2370 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2371 wpa_s->interface_removed = 1;
2372 wpa_supplicant_mark_disassoc(wpa_s);
2373 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2374 l2_packet_deinit(wpa_s->l2);
2375 wpa_s->l2 = NULL;
2376 #ifdef CONFIG_TERMINATE_ONLASTIF
2377 /* check if last interface */
2378 if (!any_interfaces(wpa_s->global->ifaces))
2379 eloop_terminate();
2380 #endif /* CONFIG_TERMINATE_ONLASTIF */
2381 break;
2382 }
2383 }
2384
2385
2386 #ifdef CONFIG_PEERKEY
2387 static void
2388 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2389 union wpa_event_data *data)
2390 {
2391 if (data == NULL)
2392 return;
2393 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2394 }
2395 #endif /* CONFIG_PEERKEY */
2396
2397
2398 #ifdef CONFIG_TDLS
2399 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2400 union wpa_event_data *data)
2401 {
2402 if (data == NULL)
2403 return;
2404 switch (data->tdls.oper) {
2405 case TDLS_REQUEST_SETUP:
2406 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2407 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2408 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2409 else
2410 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2411 break;
2412 case TDLS_REQUEST_TEARDOWN:
2413 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2414 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2415 data->tdls.reason_code);
2416 else
2417 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2418 data->tdls.peer);
2419 break;
2420 }
2421 }
2422 #endif /* CONFIG_TDLS */
2423
2424
2425 #ifdef CONFIG_WNM
2426 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2427 union wpa_event_data *data)
2428 {
2429 if (data == NULL)
2430 return;
2431 switch (data->wnm.oper) {
2432 case WNM_OPER_SLEEP:
2433 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2434 "(action=%d, intval=%d)",
2435 data->wnm.sleep_action, data->wnm.sleep_intval);
2436 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2437 data->wnm.sleep_intval, NULL);
2438 break;
2439 }
2440 }
2441 #endif /* CONFIG_WNM */
2442
2443
2444 #ifdef CONFIG_IEEE80211R
2445 static void
2446 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2447 union wpa_event_data *data)
2448 {
2449 if (data == NULL)
2450 return;
2451
2452 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2453 data->ft_ies.ies_len,
2454 data->ft_ies.ft_action,
2455 data->ft_ies.target_ap,
2456 data->ft_ies.ric_ies,
2457 data->ft_ies.ric_ies_len) < 0) {
2458 /* TODO: prevent MLME/driver from trying to associate? */
2459 }
2460 }
2461 #endif /* CONFIG_IEEE80211R */
2462
2463
2464 #ifdef CONFIG_IBSS_RSN
2465 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2466 union wpa_event_data *data)
2467 {
2468 struct wpa_ssid *ssid;
2469 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2470 return;
2471 if (data == NULL)
2472 return;
2473 ssid = wpa_s->current_ssid;
2474 if (ssid == NULL)
2475 return;
2476 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2477 return;
2478
2479 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2480 }
2481
2482
2483 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2484 union wpa_event_data *data)
2485 {
2486 struct wpa_ssid *ssid = wpa_s->current_ssid;
2487
2488 if (ssid == NULL)
2489 return;
2490
2491 /* check if the ssid is correctly configured as IBSS/RSN */
2492 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2493 return;
2494
2495 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2496 data->rx_mgmt.frame_len);
2497 }
2498 #endif /* CONFIG_IBSS_RSN */
2499
2500
2501 #ifdef CONFIG_IEEE80211R
2502 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2503 size_t len)
2504 {
2505 const u8 *sta_addr, *target_ap_addr;
2506 u16 status;
2507
2508 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2509 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2510 return; /* only SME case supported for now */
2511 if (len < 1 + 2 * ETH_ALEN + 2)
2512 return;
2513 if (data[0] != 2)
2514 return; /* Only FT Action Response is supported for now */
2515 sta_addr = data + 1;
2516 target_ap_addr = data + 1 + ETH_ALEN;
2517 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2518 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2519 MACSTR " TargetAP " MACSTR " status %u",
2520 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2521
2522 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2523 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2524 " in FT Action Response", MAC2STR(sta_addr));
2525 return;
2526 }
2527
2528 if (status) {
2529 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2530 "failure (status code %d)", status);
2531 /* TODO: report error to FT code(?) */
2532 return;
2533 }
2534
2535 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2536 len - (1 + 2 * ETH_ALEN + 2), 1,
2537 target_ap_addr, NULL, 0) < 0)
2538 return;
2539
2540 #ifdef CONFIG_SME
2541 {
2542 struct wpa_bss *bss;
2543 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2544 if (bss)
2545 wpa_s->sme.freq = bss->freq;
2546 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2547 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2548 WLAN_AUTH_FT);
2549 }
2550 #endif /* CONFIG_SME */
2551 }
2552 #endif /* CONFIG_IEEE80211R */
2553
2554
2555 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2556 struct unprot_deauth *e)
2557 {
2558 #ifdef CONFIG_IEEE80211W
2559 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2560 "dropped: " MACSTR " -> " MACSTR
2561 " (reason code %u)",
2562 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2563 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2564 #endif /* CONFIG_IEEE80211W */
2565 }
2566
2567
2568 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2569 struct unprot_disassoc *e)
2570 {
2571 #ifdef CONFIG_IEEE80211W
2572 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2573 "dropped: " MACSTR " -> " MACSTR
2574 " (reason code %u)",
2575 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2576 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2577 #endif /* CONFIG_IEEE80211W */
2578 }
2579
2580
2581 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
2582 u16 reason_code, int locally_generated,
2583 const u8 *ie, size_t ie_len, int deauth)
2584 {
2585 #ifdef CONFIG_AP
2586 if (wpa_s->ap_iface && addr) {
2587 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
2588 return;
2589 }
2590
2591 if (wpa_s->ap_iface) {
2592 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
2593 return;
2594 }
2595 #endif /* CONFIG_AP */
2596
2597 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
2598
2599 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
2600 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
2601 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
2602 eapol_sm_failed(wpa_s->eapol))) &&
2603 !wpa_s->eap_expected_failure))
2604 wpas_auth_failed(wpa_s, "AUTH_FAILED");
2605
2606 #ifdef CONFIG_P2P
2607 if (deauth && reason_code > 0) {
2608 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
2609 locally_generated) > 0) {
2610 /*
2611 * The interface was removed, so cannot continue
2612 * processing any additional operations after this.
2613 */
2614 return;
2615 }
2616 }
2617 #endif /* CONFIG_P2P */
2618
2619 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
2620 locally_generated);
2621 }
2622
2623
2624 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
2625 struct disassoc_info *info)
2626 {
2627 u16 reason_code = 0;
2628 int locally_generated = 0;
2629 const u8 *addr = NULL;
2630 const u8 *ie = NULL;
2631 size_t ie_len = 0;
2632
2633 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2634
2635 if (info) {
2636 addr = info->addr;
2637 ie = info->ie;
2638 ie_len = info->ie_len;
2639 reason_code = info->reason_code;
2640 locally_generated = info->locally_generated;
2641 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
2642 locally_generated ? " (locally generated)" : "");
2643 if (addr)
2644 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2645 MAC2STR(addr));
2646 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2647 ie, ie_len);
2648 }
2649
2650 #ifdef CONFIG_AP
2651 if (wpa_s->ap_iface && info && info->addr) {
2652 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
2653 return;
2654 }
2655
2656 if (wpa_s->ap_iface) {
2657 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
2658 return;
2659 }
2660 #endif /* CONFIG_AP */
2661
2662 #ifdef CONFIG_P2P
2663 if (info) {
2664 wpas_p2p_disassoc_notif(
2665 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
2666 locally_generated);
2667 }
2668 #endif /* CONFIG_P2P */
2669
2670 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2671 sme_event_disassoc(wpa_s, info);
2672
2673 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
2674 ie, ie_len, 0);
2675 }
2676
2677
2678 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
2679 struct deauth_info *info)
2680 {
2681 u16 reason_code = 0;
2682 int locally_generated = 0;
2683 const u8 *addr = NULL;
2684 const u8 *ie = NULL;
2685 size_t ie_len = 0;
2686
2687 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
2688
2689 if (info) {
2690 addr = info->addr;
2691 ie = info->ie;
2692 ie_len = info->ie_len;
2693 reason_code = info->reason_code;
2694 locally_generated = info->locally_generated;
2695 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2696 reason_code,
2697 locally_generated ? " (locally generated)" : "");
2698 if (addr) {
2699 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2700 MAC2STR(addr));
2701 }
2702 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
2703 ie, ie_len);
2704 }
2705
2706 wpa_reset_ft_completed(wpa_s->wpa);
2707
2708 wpas_event_disconnect(wpa_s, addr, reason_code,
2709 locally_generated, ie, ie_len, 1);
2710 }
2711
2712
2713 static const char * reg_init_str(enum reg_change_initiator init)
2714 {
2715 switch (init) {
2716 case REGDOM_SET_BY_CORE:
2717 return "CORE";
2718 case REGDOM_SET_BY_USER:
2719 return "USER";
2720 case REGDOM_SET_BY_DRIVER:
2721 return "DRIVER";
2722 case REGDOM_SET_BY_COUNTRY_IE:
2723 return "COUNTRY_IE";
2724 case REGDOM_BEACON_HINT:
2725 return "BEACON_HINT";
2726 }
2727 return "?";
2728 }
2729
2730
2731 static const char * reg_type_str(enum reg_type type)
2732 {
2733 switch (type) {
2734 case REGDOM_TYPE_UNKNOWN:
2735 return "UNKNOWN";
2736 case REGDOM_TYPE_COUNTRY:
2737 return "COUNTRY";
2738 case REGDOM_TYPE_WORLD:
2739 return "WORLD";
2740 case REGDOM_TYPE_CUSTOM_WORLD:
2741 return "CUSTOM_WORLD";
2742 case REGDOM_TYPE_INTERSECTION:
2743 return "INTERSECTION";
2744 }
2745 return "?";
2746 }
2747
2748
2749 static void wpa_supplicant_update_channel_list(
2750 struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
2751 {
2752 struct wpa_supplicant *ifs;
2753
2754 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
2755 reg_init_str(info->initiator), reg_type_str(info->type),
2756 info->alpha2[0] ? " alpha2=" : "",
2757 info->alpha2[0] ? info->alpha2 : "");
2758
2759 if (wpa_s->drv_priv == NULL)
2760 return; /* Ignore event during drv initialization */
2761
2762 free_hw_features(wpa_s);
2763 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(
2764 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags);
2765
2766 wpas_p2p_update_channel_list(wpa_s);
2767
2768 /*
2769 * Check other interfaces to see if they share the same radio. If
2770 * so, they get updated with this same hw mode info.
2771 */
2772 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
2773 radio_list) {
2774 if (ifs != wpa_s) {
2775 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
2776 ifs->ifname);
2777 free_hw_features(ifs);
2778 ifs->hw.modes = wpa_drv_get_hw_feature_data(
2779 ifs, &ifs->hw.num_modes, &ifs->hw.flags);
2780 }
2781 }
2782 }
2783
2784
2785 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
2786 const u8 *frame, size_t len, int freq)
2787 {
2788 const struct ieee80211_mgmt *mgmt;
2789 const u8 *payload;
2790 size_t plen;
2791 u8 category;
2792
2793 if (len < IEEE80211_HDRLEN + 2)
2794 return;
2795
2796 mgmt = (const struct ieee80211_mgmt *) frame;
2797 payload = frame + IEEE80211_HDRLEN;
2798 category = *payload++;
2799 plen = len - IEEE80211_HDRLEN - 1;
2800
2801 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2802 " Category=%u DataLen=%d freq=%d MHz",
2803 MAC2STR(mgmt->sa), category, (int) plen, freq);
2804
2805 if (category == WLAN_ACTION_WMM) {
2806 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
2807 return;
2808 }
2809
2810 #ifdef CONFIG_IEEE80211R
2811 if (category == WLAN_ACTION_FT) {
2812 ft_rx_action(wpa_s, payload, plen);
2813 return;
2814 }
2815 #endif /* CONFIG_IEEE80211R */
2816
2817 #ifdef CONFIG_IEEE80211W
2818 #ifdef CONFIG_SME
2819 if (category == WLAN_ACTION_SA_QUERY) {
2820 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
2821 return;
2822 }
2823 #endif /* CONFIG_SME */
2824 #endif /* CONFIG_IEEE80211W */
2825
2826 #ifdef CONFIG_WNM
2827 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
2828 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
2829 return;
2830 }
2831 #endif /* CONFIG_WNM */
2832
2833 #ifdef CONFIG_GAS
2834 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
2835 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
2836 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
2837 mgmt->u.action.category,
2838 payload, plen, freq) == 0)
2839 return;
2840 #endif /* CONFIG_GAS */
2841
2842 #ifdef CONFIG_TDLS
2843 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
2844 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
2845 wpa_dbg(wpa_s, MSG_DEBUG,
2846 "TDLS: Received Discovery Response from " MACSTR,
2847 MAC2STR(mgmt->sa));
2848 return;
2849 }
2850 #endif /* CONFIG_TDLS */
2851
2852 #ifdef CONFIG_INTERWORKING
2853 if (category == WLAN_ACTION_QOS && plen >= 1 &&
2854 payload[0] == QOS_QOS_MAP_CONFIG) {
2855 const u8 *pos = payload + 1;
2856 size_t qlen = plen - 1;
2857 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
2858 MACSTR, MAC2STR(mgmt->sa));
2859 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
2860 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
2861 pos[1] <= qlen - 2 && pos[1] >= 16)
2862 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
2863 return;
2864 }
2865 #endif /* CONFIG_INTERWORKING */
2866
2867 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
2868 category, payload, plen, freq);
2869 if (wpa_s->ifmsh)
2870 mesh_mpm_action_rx(wpa_s, mgmt, len);
2871 }
2872
2873
2874 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
2875 union wpa_event_data *event)
2876 {
2877 #ifdef CONFIG_P2P
2878 struct wpa_supplicant *ifs;
2879 #endif /* CONFIG_P2P */
2880 struct wpa_freq_range_list *list;
2881 char *str = NULL;
2882
2883 list = &event->freq_range;
2884
2885 if (list->num)
2886 str = freq_range_list_str(list);
2887 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
2888 str ? str : "");
2889
2890 #ifdef CONFIG_P2P
2891 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
2892 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
2893 __func__);
2894 } else {
2895 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
2896 wpas_p2p_update_channel_list(wpa_s);
2897 }
2898
2899 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
2900 int freq;
2901 if (!ifs->current_ssid ||
2902 !ifs->current_ssid->p2p_group ||
2903 (ifs->current_ssid->mode != WPAS_MODE_P2P_GO &&
2904 ifs->current_ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION))
2905 continue;
2906
2907 freq = ifs->current_ssid->frequency;
2908 if (!freq_range_list_includes(list, freq)) {
2909 wpa_dbg(ifs, MSG_DEBUG, "P2P GO operating frequency %d MHz in safe range",
2910 freq);
2911 continue;
2912 }
2913
2914 wpa_dbg(ifs, MSG_DEBUG, "P2P GO operating in unsafe frequency %d MHz",
2915 freq);
2916 /* TODO: Consider using CSA or removing the group within
2917 * wpa_supplicant */
2918 wpa_msg(ifs, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
2919 }
2920 #endif /* CONFIG_P2P */
2921
2922 os_free(str);
2923 }
2924
2925
2926 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
2927 union wpa_event_data *data)
2928 {
2929 wpa_dbg(wpa_s, MSG_DEBUG,
2930 "Connection authorized by device, previous state %d",
2931 wpa_s->wpa_state);
2932 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
2933 wpa_supplicant_cancel_auth_timeout(wpa_s);
2934 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2935 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2936 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2937 }
2938 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
2939 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
2940 data->assoc_info.ptk_kek);
2941 }
2942
2943
2944 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
2945 union wpa_event_data *data)
2946 {
2947 struct wpa_supplicant *wpa_s = ctx;
2948
2949 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
2950 event != EVENT_INTERFACE_ENABLED &&
2951 event != EVENT_INTERFACE_STATUS &&
2952 event != EVENT_SCHED_SCAN_STOPPED) {
2953 wpa_dbg(wpa_s, MSG_DEBUG,
2954 "Ignore event %s (%d) while interface is disabled",
2955 event_to_string(event), event);
2956 return;
2957 }
2958
2959 #ifndef CONFIG_NO_STDOUT_DEBUG
2960 {
2961 int level = MSG_DEBUG;
2962
2963 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
2964 const struct ieee80211_hdr *hdr;
2965 u16 fc;
2966 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
2967 fc = le_to_host16(hdr->frame_control);
2968 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2969 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
2970 level = MSG_EXCESSIVE;
2971 }
2972
2973 wpa_dbg(wpa_s, level, "Event %s (%d) received",
2974 event_to_string(event), event);
2975 }
2976 #endif /* CONFIG_NO_STDOUT_DEBUG */
2977
2978 switch (event) {
2979 case EVENT_AUTH:
2980 sme_event_auth(wpa_s, data);
2981 break;
2982 case EVENT_ASSOC:
2983 wpa_supplicant_event_assoc(wpa_s, data);
2984 if (data && data->assoc_info.authorized)
2985 wpa_supplicant_event_assoc_auth(wpa_s, data);
2986 break;
2987 case EVENT_DISASSOC:
2988 wpas_event_disassoc(wpa_s,
2989 data ? &data->disassoc_info : NULL);
2990 break;
2991 case EVENT_DEAUTH:
2992 wpas_event_deauth(wpa_s,
2993 data ? &data->deauth_info : NULL);
2994 break;
2995 case EVENT_MICHAEL_MIC_FAILURE:
2996 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
2997 break;
2998 #ifndef CONFIG_NO_SCAN_PROCESSING
2999 case EVENT_SCAN_STARTED:
3000 os_get_reltime(&wpa_s->scan_start_time);
3001 if (wpa_s->own_scan_requested) {
3002 struct os_reltime diff;
3003
3004 os_reltime_sub(&wpa_s->scan_start_time,
3005 &wpa_s->scan_trigger_time, &diff);
3006 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3007 diff.sec, diff.usec);
3008 wpa_s->own_scan_requested = 0;
3009 wpa_s->own_scan_running = 1;
3010 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3011 wpa_s->manual_scan_use_id) {
3012 wpa_msg_ctrl(wpa_s, MSG_INFO,
3013 WPA_EVENT_SCAN_STARTED "id=%u",
3014 wpa_s->manual_scan_id);
3015 } else {
3016 wpa_msg_ctrl(wpa_s, MSG_INFO,
3017 WPA_EVENT_SCAN_STARTED);
3018 }
3019 } else {
3020 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3021 wpa_s->external_scan_running = 1;
3022 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
3023 }
3024 break;
3025 case EVENT_SCAN_RESULTS:
3026 if (os_reltime_initialized(&wpa_s->scan_start_time)) {
3027 struct os_reltime now, diff;
3028 os_get_reltime(&now);
3029 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3030 wpa_s->scan_start_time.sec = 0;
3031 wpa_s->scan_start_time.usec = 0;
3032 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3033 diff.sec, diff.usec);
3034 }
3035 wpa_supplicant_event_scan_results(wpa_s, data);
3036 wpa_s->own_scan_running = 0;
3037 wpa_s->external_scan_running = 0;
3038 radio_work_check_next(wpa_s);
3039 break;
3040 #endif /* CONFIG_NO_SCAN_PROCESSING */
3041 case EVENT_ASSOCINFO:
3042 wpa_supplicant_event_associnfo(wpa_s, data);
3043 break;
3044 case EVENT_INTERFACE_STATUS:
3045 wpa_supplicant_event_interface_status(wpa_s, data);
3046 break;
3047 case EVENT_PMKID_CANDIDATE:
3048 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3049 break;
3050 #ifdef CONFIG_PEERKEY
3051 case EVENT_STKSTART:
3052 wpa_supplicant_event_stkstart(wpa_s, data);
3053 break;
3054 #endif /* CONFIG_PEERKEY */
3055 #ifdef CONFIG_TDLS
3056 case EVENT_TDLS:
3057 wpa_supplicant_event_tdls(wpa_s, data);
3058 break;
3059 #endif /* CONFIG_TDLS */
3060 #ifdef CONFIG_WNM
3061 case EVENT_WNM:
3062 wpa_supplicant_event_wnm(wpa_s, data);
3063 break;
3064 #endif /* CONFIG_WNM */
3065 #ifdef CONFIG_IEEE80211R
3066 case EVENT_FT_RESPONSE:
3067 wpa_supplicant_event_ft_response(wpa_s, data);
3068 break;
3069 #endif /* CONFIG_IEEE80211R */
3070 #ifdef CONFIG_IBSS_RSN
3071 case EVENT_IBSS_RSN_START:
3072 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3073 break;
3074 #endif /* CONFIG_IBSS_RSN */
3075 case EVENT_ASSOC_REJECT:
3076 if (data->assoc_reject.bssid)
3077 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3078 "bssid=" MACSTR " status_code=%u",
3079 MAC2STR(data->assoc_reject.bssid),
3080 data->assoc_reject.status_code);
3081 else
3082 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3083 "status_code=%u",
3084 data->assoc_reject.status_code);
3085 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3086 sme_event_assoc_reject(wpa_s, data);
3087 else {
3088 const u8 *bssid = data->assoc_reject.bssid;
3089 if (bssid == NULL || is_zero_ether_addr(bssid))
3090 bssid = wpa_s->pending_bssid;
3091 wpas_connection_failed(wpa_s, bssid);
3092 wpa_supplicant_mark_disassoc(wpa_s);
3093 }
3094 break;
3095 case EVENT_AUTH_TIMED_OUT:
3096 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3097 sme_event_auth_timed_out(wpa_s, data);
3098 break;
3099 case EVENT_ASSOC_TIMED_OUT:
3100 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3101 sme_event_assoc_timed_out(wpa_s, data);
3102 break;
3103 case EVENT_TX_STATUS:
3104 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3105 " type=%d stype=%d",
3106 MAC2STR(data->tx_status.dst),
3107 data->tx_status.type, data->tx_status.stype);
3108 #ifdef CONFIG_AP
3109 if (wpa_s->ap_iface == NULL) {
3110 #ifdef CONFIG_OFFCHANNEL
3111 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3112 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
3113 offchannel_send_action_tx_status(
3114 wpa_s, data->tx_status.dst,
3115 data->tx_status.data,
3116 data->tx_status.data_len,
3117 data->tx_status.ack ?
3118 OFFCHANNEL_SEND_ACTION_SUCCESS :
3119 OFFCHANNEL_SEND_ACTION_NO_ACK);
3120 #endif /* CONFIG_OFFCHANNEL */
3121 break;
3122 }
3123 #endif /* CONFIG_AP */
3124 #ifdef CONFIG_OFFCHANNEL
3125 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3126 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
3127 /*
3128 * Catch TX status events for Action frames we sent via group
3129 * interface in GO mode.
3130 */
3131 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3132 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3133 os_memcmp(wpa_s->parent->pending_action_dst,
3134 data->tx_status.dst, ETH_ALEN) == 0) {
3135 offchannel_send_action_tx_status(
3136 wpa_s->parent, data->tx_status.dst,
3137 data->tx_status.data,
3138 data->tx_status.data_len,
3139 data->tx_status.ack ?
3140 OFFCHANNEL_SEND_ACTION_SUCCESS :
3141 OFFCHANNEL_SEND_ACTION_NO_ACK);
3142 break;
3143 }
3144 #endif /* CONFIG_OFFCHANNEL */
3145 #ifdef CONFIG_AP
3146 switch (data->tx_status.type) {
3147 case WLAN_FC_TYPE_MGMT:
3148 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3149 data->tx_status.data_len,
3150 data->tx_status.stype,
3151 data->tx_status.ack);
3152 break;
3153 case WLAN_FC_TYPE_DATA:
3154 ap_tx_status(wpa_s, data->tx_status.dst,
3155 data->tx_status.data,
3156 data->tx_status.data_len,
3157 data->tx_status.ack);
3158 break;
3159 }
3160 #endif /* CONFIG_AP */
3161 break;
3162 #ifdef CONFIG_AP
3163 case EVENT_EAPOL_TX_STATUS:
3164 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3165 data->eapol_tx_status.data,
3166 data->eapol_tx_status.data_len,
3167 data->eapol_tx_status.ack);
3168 break;
3169 case EVENT_DRIVER_CLIENT_POLL_OK:
3170 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3171 break;
3172 case EVENT_RX_FROM_UNKNOWN:
3173 if (wpa_s->ap_iface == NULL)
3174 break;
3175 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3176 data->rx_from_unknown.wds);
3177 break;
3178 case EVENT_CH_SWITCH:
3179 if (!data)
3180 break;
3181 if (!wpa_s->ap_iface) {
3182 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch "
3183 "event in non-AP mode");
3184 break;
3185 }
3186
3187 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3188 data->ch_switch.ht_enabled,
3189 data->ch_switch.ch_offset,
3190 data->ch_switch.ch_width,
3191 data->ch_switch.cf1,
3192 data->ch_switch.cf2);
3193 break;
3194 #endif /* CONFIG_AP */
3195 case EVENT_RX_MGMT: {
3196 u16 fc, stype;
3197 const struct ieee80211_mgmt *mgmt;
3198
3199 #ifdef CONFIG_TESTING_OPTIONS
3200 if (wpa_s->ext_mgmt_frame_handling) {
3201 struct rx_mgmt *rx = &data->rx_mgmt;
3202 size_t hex_len = 2 * rx->frame_len + 1;
3203 char *hex = os_malloc(hex_len);
3204 if (hex) {
3205 wpa_snprintf_hex(hex, hex_len,
3206 rx->frame, rx->frame_len);
3207 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3208 rx->freq, rx->datarate, rx->ssi_signal,
3209 hex);
3210 os_free(hex);
3211 }
3212 break;
3213 }
3214 #endif /* CONFIG_TESTING_OPTIONS */
3215
3216 mgmt = (const struct ieee80211_mgmt *)
3217 data->rx_mgmt.frame;
3218 fc = le_to_host16(mgmt->frame_control);
3219 stype = WLAN_FC_GET_STYPE(fc);
3220
3221 #ifdef CONFIG_AP
3222 if (wpa_s->ap_iface == NULL) {
3223 #endif /* CONFIG_AP */
3224 #ifdef CONFIG_P2P
3225 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3226 data->rx_mgmt.frame_len > 24) {
3227 const u8 *src = mgmt->sa;
3228 const u8 *ie = mgmt->u.probe_req.variable;
3229 size_t ie_len = data->rx_mgmt.frame_len -
3230 (mgmt->u.probe_req.variable -
3231 data->rx_mgmt.frame);
3232 wpas_p2p_probe_req_rx(
3233 wpa_s, src, mgmt->da,
3234 mgmt->bssid, ie, ie_len,
3235 data->rx_mgmt.ssi_signal);
3236 break;
3237 }
3238 #endif /* CONFIG_P2P */
3239 #ifdef CONFIG_IBSS_RSN
3240 if (wpa_s->current_ssid &&
3241 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3242 stype == WLAN_FC_STYPE_AUTH &&
3243 data->rx_mgmt.frame_len >= 30) {
3244 wpa_supplicant_event_ibss_auth(wpa_s, data);
3245 break;
3246 }
3247 #endif /* CONFIG_IBSS_RSN */
3248
3249 if (stype == WLAN_FC_STYPE_ACTION) {
3250 wpas_event_rx_mgmt_action(
3251 wpa_s, data->rx_mgmt.frame,
3252 data->rx_mgmt.frame_len,
3253 data->rx_mgmt.freq);
3254 break;
3255 }
3256
3257 if (wpa_s->ifmsh) {
3258 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3259 break;
3260 }
3261
3262 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3263 "management frame in non-AP mode");
3264 break;
3265 #ifdef CONFIG_AP
3266 }
3267
3268 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3269 data->rx_mgmt.frame_len > 24) {
3270 const u8 *ie = mgmt->u.probe_req.variable;
3271 size_t ie_len = data->rx_mgmt.frame_len -
3272 (mgmt->u.probe_req.variable -
3273 data->rx_mgmt.frame);
3274
3275 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3276 mgmt->bssid, ie, ie_len,
3277 data->rx_mgmt.ssi_signal);
3278 }
3279
3280 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
3281 #endif /* CONFIG_AP */
3282 break;
3283 }
3284 case EVENT_RX_PROBE_REQ:
3285 if (data->rx_probe_req.sa == NULL ||
3286 data->rx_probe_req.ie == NULL)
3287 break;
3288 #ifdef CONFIG_AP
3289 if (wpa_s->ap_iface) {
3290 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3291 data->rx_probe_req.sa,
3292 data->rx_probe_req.da,
3293 data->rx_probe_req.bssid,
3294 data->rx_probe_req.ie,
3295 data->rx_probe_req.ie_len,
3296 data->rx_probe_req.ssi_signal);
3297 break;
3298 }
3299 #endif /* CONFIG_AP */
3300 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
3301 data->rx_probe_req.da,
3302 data->rx_probe_req.bssid,
3303 data->rx_probe_req.ie,
3304 data->rx_probe_req.ie_len,
3305 data->rx_probe_req.ssi_signal);
3306 break;
3307 case EVENT_REMAIN_ON_CHANNEL:
3308 #ifdef CONFIG_OFFCHANNEL
3309 offchannel_remain_on_channel_cb(
3310 wpa_s, data->remain_on_channel.freq,
3311 data->remain_on_channel.duration);
3312 #endif /* CONFIG_OFFCHANNEL */
3313 wpas_p2p_remain_on_channel_cb(
3314 wpa_s, data->remain_on_channel.freq,
3315 data->remain_on_channel.duration);
3316 break;
3317 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
3318 #ifdef CONFIG_OFFCHANNEL
3319 offchannel_cancel_remain_on_channel_cb(
3320 wpa_s, data->remain_on_channel.freq);
3321 #endif /* CONFIG_OFFCHANNEL */
3322 wpas_p2p_cancel_remain_on_channel_cb(
3323 wpa_s, data->remain_on_channel.freq);
3324 break;
3325 case EVENT_EAPOL_RX:
3326 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3327 data->eapol_rx.data,
3328 data->eapol_rx.data_len);
3329 break;
3330 case EVENT_SIGNAL_CHANGE:
3331 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3332 "above=%d signal=%d noise=%d txrate=%d",
3333 data->signal_change.above_threshold,
3334 data->signal_change.current_signal,
3335 data->signal_change.current_noise,
3336 data->signal_change.current_txrate);
3337 bgscan_notify_signal_change(
3338 wpa_s, data->signal_change.above_threshold,
3339 data->signal_change.current_signal,
3340 data->signal_change.current_noise,
3341 data->signal_change.current_txrate);
3342 break;
3343 case EVENT_INTERFACE_ENABLED:
3344 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
3345 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3346 wpa_supplicant_update_mac_addr(wpa_s);
3347 if (wpa_s->p2p_mgmt) {
3348 wpa_supplicant_set_state(wpa_s,
3349 WPA_DISCONNECTED);
3350 break;
3351 }
3352
3353 #ifdef CONFIG_AP
3354 if (!wpa_s->ap_iface) {
3355 wpa_supplicant_set_state(wpa_s,
3356 WPA_DISCONNECTED);
3357 wpa_supplicant_req_scan(wpa_s, 0, 0);
3358 } else
3359 wpa_supplicant_set_state(wpa_s,
3360 WPA_COMPLETED);
3361 #else /* CONFIG_AP */
3362 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3363 wpa_supplicant_req_scan(wpa_s, 0, 0);
3364 #endif /* CONFIG_AP */
3365 }
3366 break;
3367 case EVENT_INTERFACE_DISABLED:
3368 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
3369 #ifdef CONFIG_P2P
3370 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3371 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3372 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
3373 /*
3374 * The interface was externally disabled. Remove
3375 * it assuming an external entity will start a
3376 * new session if needed.
3377 */
3378 wpas_p2p_disconnect(wpa_s);
3379 break;
3380 }
3381 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3382 p2p_in_progress(wpa_s->global->p2p) > 1) {
3383 /* This radio work will be cancelled, so clear P2P
3384 * state as well.
3385 */
3386 p2p_stop_find(wpa_s->global->p2p);
3387 }
3388 #endif /* CONFIG_P2P */
3389
3390 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3391 /*
3392 * Indicate disconnection to keep ctrl_iface events
3393 * consistent.
3394 */
3395 wpa_supplicant_event_disassoc(
3396 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3397 }
3398 wpa_supplicant_mark_disassoc(wpa_s);
3399 radio_remove_works(wpa_s, NULL, 0);
3400
3401 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3402 break;
3403 case EVENT_CHANNEL_LIST_CHANGED:
3404 wpa_supplicant_update_channel_list(
3405 wpa_s, &data->channel_list_changed);
3406 break;
3407 case EVENT_INTERFACE_UNAVAILABLE:
3408 wpas_p2p_interface_unavailable(wpa_s);
3409 break;
3410 case EVENT_BEST_CHANNEL:
3411 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3412 "(%d %d %d)",
3413 data->best_chan.freq_24, data->best_chan.freq_5,
3414 data->best_chan.freq_overall);
3415 wpa_s->best_24_freq = data->best_chan.freq_24;
3416 wpa_s->best_5_freq = data->best_chan.freq_5;
3417 wpa_s->best_overall_freq = data->best_chan.freq_overall;
3418 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3419 data->best_chan.freq_5,
3420 data->best_chan.freq_overall);
3421 break;
3422 case EVENT_UNPROT_DEAUTH:
3423 wpa_supplicant_event_unprot_deauth(wpa_s,
3424 &data->unprot_deauth);
3425 break;
3426 case EVENT_UNPROT_DISASSOC:
3427 wpa_supplicant_event_unprot_disassoc(wpa_s,
3428 &data->unprot_disassoc);
3429 break;
3430 case EVENT_STATION_LOW_ACK:
3431 #ifdef CONFIG_AP
3432 if (wpa_s->ap_iface && data)
3433 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3434 data->low_ack.addr);
3435 #endif /* CONFIG_AP */
3436 #ifdef CONFIG_TDLS
3437 if (data)
3438 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
3439 data->low_ack.addr);
3440 #endif /* CONFIG_TDLS */
3441 break;
3442 case EVENT_IBSS_PEER_LOST:
3443 #ifdef CONFIG_IBSS_RSN
3444 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
3445 #endif /* CONFIG_IBSS_RSN */
3446 break;
3447 case EVENT_DRIVER_GTK_REKEY:
3448 if (os_memcmp(data->driver_gtk_rekey.bssid,
3449 wpa_s->bssid, ETH_ALEN))
3450 break;
3451 if (!wpa_s->wpa)
3452 break;
3453 wpa_sm_update_replay_ctr(wpa_s->wpa,
3454 data->driver_gtk_rekey.replay_ctr);
3455 break;
3456 case EVENT_SCHED_SCAN_STOPPED:
3457 wpa_s->pno = 0;
3458 wpa_s->sched_scanning = 0;
3459 wpa_supplicant_notify_scanning(wpa_s, 0);
3460
3461 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
3462 break;
3463
3464 /*
3465 * Start a new sched scan to continue searching for more SSIDs
3466 * either if timed out or PNO schedule scan is pending.
3467 */
3468 if (wpa_s->sched_scan_timed_out) {
3469 wpa_supplicant_req_sched_scan(wpa_s);
3470 } else if (wpa_s->pno_sched_pending) {
3471 wpa_s->pno_sched_pending = 0;
3472 wpas_start_pno(wpa_s);
3473 }
3474
3475 break;
3476 case EVENT_WPS_BUTTON_PUSHED:
3477 #ifdef CONFIG_WPS
3478 wpas_wps_start_pbc(wpa_s, NULL, 0);
3479 #endif /* CONFIG_WPS */
3480 break;
3481 case EVENT_AVOID_FREQUENCIES:
3482 wpa_supplicant_notify_avoid_freq(wpa_s, data);
3483 break;
3484 case EVENT_CONNECT_FAILED_REASON:
3485 #ifdef CONFIG_AP
3486 if (!wpa_s->ap_iface || !data)
3487 break;
3488 hostapd_event_connect_failed_reason(
3489 wpa_s->ap_iface->bss[0],
3490 data->connect_failed_reason.addr,
3491 data->connect_failed_reason.code);
3492 #endif /* CONFIG_AP */
3493 break;
3494 case EVENT_NEW_PEER_CANDIDATE:
3495 #ifdef CONFIG_MESH
3496 if (!wpa_s->ifmsh || !data)
3497 break;
3498 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
3499 data->mesh_peer.ies,
3500 data->mesh_peer.ie_len);
3501 #endif /* CONFIG_MESH */
3502 break;
3503 default:
3504 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
3505 break;
3506 }
3507 }
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