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wpa_s AP: Deliver EVENT_RX_PROBE_REQ events to AP processing
[thirdparty/hostap.git] / wpa_supplicant / events.c
1 /*
2 * WPA Supplicant - Driver event processing
3 * Copyright (c) 2003-2010, Jouni Malinen <j@w1.fi>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15 #include "includes.h"
16
17 #include "common.h"
18 #include "eapol_supp/eapol_supp_sm.h"
19 #include "rsn_supp/wpa.h"
20 #include "eloop.h"
21 #include "config.h"
22 #include "l2_packet/l2_packet.h"
23 #include "wpa_supplicant_i.h"
24 #include "driver_i.h"
25 #include "pcsc_funcs.h"
26 #include "rsn_supp/preauth.h"
27 #include "rsn_supp/pmksa_cache.h"
28 #include "common/wpa_ctrl.h"
29 #include "eap_peer/eap.h"
30 #include "ap/hostapd.h"
31 #include "p2p/p2p.h"
32 #include "notify.h"
33 #include "common/ieee802_11_defs.h"
34 #include "common/ieee802_11_common.h"
35 #include "crypto/random.h"
36 #include "blacklist.h"
37 #include "wpas_glue.h"
38 #include "wps_supplicant.h"
39 #include "ibss_rsn.h"
40 #include "sme.h"
41 #include "p2p_supplicant.h"
42 #include "bgscan.h"
43 #include "ap.h"
44 #include "bss.h"
45 #include "mlme.h"
46 #include "scan.h"
47
48
49 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
50 {
51 struct wpa_ssid *ssid, *old_ssid;
52
53 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
54 return 0;
55
56 wpa_printf(MSG_DEBUG, "Select network based on association "
57 "information");
58 ssid = wpa_supplicant_get_ssid(wpa_s);
59 if (ssid == NULL) {
60 wpa_printf(MSG_INFO, "No network configuration found for the "
61 "current AP");
62 return -1;
63 }
64
65 if (ssid->disabled) {
66 wpa_printf(MSG_DEBUG, "Selected network is disabled");
67 return -1;
68 }
69
70 wpa_printf(MSG_DEBUG, "Network configuration found for the current "
71 "AP");
72 if (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
73 WPA_KEY_MGMT_WPA_NONE |
74 WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X |
75 WPA_KEY_MGMT_PSK_SHA256 |
76 WPA_KEY_MGMT_IEEE8021X_SHA256)) {
77 u8 wpa_ie[80];
78 size_t wpa_ie_len = sizeof(wpa_ie);
79 wpa_supplicant_set_suites(wpa_s, NULL, ssid,
80 wpa_ie, &wpa_ie_len);
81 } else {
82 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
83 }
84
85 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
86 eapol_sm_invalidate_cached_session(wpa_s->eapol);
87 old_ssid = wpa_s->current_ssid;
88 wpa_s->current_ssid = ssid;
89 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
90 wpa_supplicant_initiate_eapol(wpa_s);
91 if (old_ssid != wpa_s->current_ssid)
92 wpas_notify_network_changed(wpa_s);
93
94 return 0;
95 }
96
97
98 static void wpa_supplicant_stop_countermeasures(void *eloop_ctx,
99 void *sock_ctx)
100 {
101 struct wpa_supplicant *wpa_s = eloop_ctx;
102
103 if (wpa_s->countermeasures) {
104 wpa_s->countermeasures = 0;
105 wpa_drv_set_countermeasures(wpa_s, 0);
106 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
107 wpa_supplicant_req_scan(wpa_s, 0, 0);
108 }
109 }
110
111
112 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
113 {
114 int bssid_changed;
115
116 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
117 return;
118
119 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
120 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
121 os_memset(wpa_s->bssid, 0, ETH_ALEN);
122 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
123 wpa_s->current_bss = NULL;
124 wpa_s->assoc_freq = 0;
125 if (bssid_changed)
126 wpas_notify_bssid_changed(wpa_s);
127
128 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
129 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
130 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
131 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
132 wpa_s->ap_ies_from_associnfo = 0;
133 }
134
135
136 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
137 {
138 struct wpa_ie_data ie;
139 int pmksa_set = -1;
140 size_t i;
141
142 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
143 ie.pmkid == NULL)
144 return;
145
146 for (i = 0; i < ie.num_pmkid; i++) {
147 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
148 ie.pmkid + i * PMKID_LEN,
149 NULL, NULL, 0);
150 if (pmksa_set == 0) {
151 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
152 break;
153 }
154 }
155
156 wpa_printf(MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from PMKSA "
157 "cache", pmksa_set == 0 ? "" : "not ");
158 }
159
160
161 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
162 union wpa_event_data *data)
163 {
164 if (data == NULL) {
165 wpa_printf(MSG_DEBUG, "RSN: No data in PMKID candidate event");
166 return;
167 }
168 wpa_printf(MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
169 " index=%d preauth=%d",
170 MAC2STR(data->pmkid_candidate.bssid),
171 data->pmkid_candidate.index,
172 data->pmkid_candidate.preauth);
173
174 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
175 data->pmkid_candidate.index,
176 data->pmkid_candidate.preauth);
177 }
178
179
180 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
181 {
182 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
183 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
184 return 0;
185
186 #ifdef IEEE8021X_EAPOL
187 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
188 wpa_s->current_ssid &&
189 !(wpa_s->current_ssid->eapol_flags &
190 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
191 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
192 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
193 * plaintext or static WEP keys). */
194 return 0;
195 }
196 #endif /* IEEE8021X_EAPOL */
197
198 return 1;
199 }
200
201
202 /**
203 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
204 * @wpa_s: pointer to wpa_supplicant data
205 * @ssid: Configuration data for the network
206 * Returns: 0 on success, -1 on failure
207 *
208 * This function is called when starting authentication with a network that is
209 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
210 */
211 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
212 struct wpa_ssid *ssid)
213 {
214 #ifdef IEEE8021X_EAPOL
215 int aka = 0, sim = 0, type;
216
217 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
218 return 0;
219
220 if (ssid->eap.eap_methods == NULL) {
221 sim = 1;
222 aka = 1;
223 } else {
224 struct eap_method_type *eap = ssid->eap.eap_methods;
225 while (eap->vendor != EAP_VENDOR_IETF ||
226 eap->method != EAP_TYPE_NONE) {
227 if (eap->vendor == EAP_VENDOR_IETF) {
228 if (eap->method == EAP_TYPE_SIM)
229 sim = 1;
230 else if (eap->method == EAP_TYPE_AKA)
231 aka = 1;
232 }
233 eap++;
234 }
235 }
236
237 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
238 sim = 0;
239 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL)
240 aka = 0;
241
242 if (!sim && !aka) {
243 wpa_printf(MSG_DEBUG, "Selected network is configured to use "
244 "SIM, but neither EAP-SIM nor EAP-AKA are enabled");
245 return 0;
246 }
247
248 wpa_printf(MSG_DEBUG, "Selected network is configured to use SIM "
249 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
250 if (sim && aka)
251 type = SCARD_TRY_BOTH;
252 else if (aka)
253 type = SCARD_USIM_ONLY;
254 else
255 type = SCARD_GSM_SIM_ONLY;
256
257 wpa_s->scard = scard_init(type);
258 if (wpa_s->scard == NULL) {
259 wpa_printf(MSG_WARNING, "Failed to initialize SIM "
260 "(pcsc-lite)");
261 return -1;
262 }
263 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
264 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
265 #endif /* IEEE8021X_EAPOL */
266
267 return 0;
268 }
269
270
271 #ifndef CONFIG_NO_SCAN_PROCESSING
272 static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
273 struct wpa_ssid *ssid)
274 {
275 int i, privacy = 0;
276
277 if (ssid->mixed_cell)
278 return 1;
279
280 #ifdef CONFIG_WPS
281 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
282 return 1;
283 #endif /* CONFIG_WPS */
284
285 for (i = 0; i < NUM_WEP_KEYS; i++) {
286 if (ssid->wep_key_len[i]) {
287 privacy = 1;
288 break;
289 }
290 }
291 #ifdef IEEE8021X_EAPOL
292 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
293 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
294 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
295 privacy = 1;
296 #endif /* IEEE8021X_EAPOL */
297
298 if (bss->caps & IEEE80211_CAP_PRIVACY)
299 return privacy;
300 return !privacy;
301 }
302
303
304 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
305 struct wpa_ssid *ssid,
306 struct wpa_scan_res *bss)
307 {
308 struct wpa_ie_data ie;
309 int proto_match = 0;
310 const u8 *rsn_ie, *wpa_ie;
311 int ret;
312 int wep_ok;
313
314 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
315 if (ret >= 0)
316 return ret;
317
318 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
319 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
320 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
321 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
322 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
323
324 rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
325 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
326 proto_match++;
327
328 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
329 wpa_printf(MSG_DEBUG, " skip RSN IE - parse failed");
330 break;
331 }
332
333 if (wep_ok &&
334 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
335 {
336 wpa_printf(MSG_DEBUG, " selected based on TSN in "
337 "RSN IE");
338 return 1;
339 }
340
341 if (!(ie.proto & ssid->proto)) {
342 wpa_printf(MSG_DEBUG, " skip RSN IE - proto "
343 "mismatch");
344 break;
345 }
346
347 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
348 wpa_printf(MSG_DEBUG, " skip RSN IE - PTK cipher "
349 "mismatch");
350 break;
351 }
352
353 if (!(ie.group_cipher & ssid->group_cipher)) {
354 wpa_printf(MSG_DEBUG, " skip RSN IE - GTK cipher "
355 "mismatch");
356 break;
357 }
358
359 if (!(ie.key_mgmt & ssid->key_mgmt)) {
360 wpa_printf(MSG_DEBUG, " skip RSN IE - key mgmt "
361 "mismatch");
362 break;
363 }
364
365 #ifdef CONFIG_IEEE80211W
366 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
367 ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
368 wpa_printf(MSG_DEBUG, " skip RSN IE - no mgmt frame "
369 "protection");
370 break;
371 }
372 #endif /* CONFIG_IEEE80211W */
373
374 wpa_printf(MSG_DEBUG, " selected based on RSN IE");
375 return 1;
376 }
377
378 wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
379 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
380 proto_match++;
381
382 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
383 wpa_printf(MSG_DEBUG, " skip WPA IE - parse failed");
384 break;
385 }
386
387 if (wep_ok &&
388 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
389 {
390 wpa_printf(MSG_DEBUG, " selected based on TSN in "
391 "WPA IE");
392 return 1;
393 }
394
395 if (!(ie.proto & ssid->proto)) {
396 wpa_printf(MSG_DEBUG, " skip WPA IE - proto "
397 "mismatch");
398 break;
399 }
400
401 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
402 wpa_printf(MSG_DEBUG, " skip WPA IE - PTK cipher "
403 "mismatch");
404 break;
405 }
406
407 if (!(ie.group_cipher & ssid->group_cipher)) {
408 wpa_printf(MSG_DEBUG, " skip WPA IE - GTK cipher "
409 "mismatch");
410 break;
411 }
412
413 if (!(ie.key_mgmt & ssid->key_mgmt)) {
414 wpa_printf(MSG_DEBUG, " skip WPA IE - key mgmt "
415 "mismatch");
416 break;
417 }
418
419 wpa_printf(MSG_DEBUG, " selected based on WPA IE");
420 return 1;
421 }
422
423 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
424 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
425 wpa_printf(MSG_DEBUG, " skip - no WPA/RSN proto match");
426 return 0;
427 }
428
429 /* Allow in non-WPA configuration */
430 return 1;
431 }
432
433
434 static int freq_allowed(int *freqs, int freq)
435 {
436 int i;
437
438 if (freqs == NULL)
439 return 1;
440
441 for (i = 0; freqs[i]; i++)
442 if (freqs[i] == freq)
443 return 1;
444 return 0;
445 }
446
447
448 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
449 int i, struct wpa_scan_res *bss,
450 struct wpa_ssid *group)
451 {
452 const u8 *ssid_;
453 u8 wpa_ie_len, rsn_ie_len, ssid_len;
454 int wpa;
455 struct wpa_blacklist *e;
456 const u8 *ie;
457 struct wpa_ssid *ssid;
458
459 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
460 ssid_ = ie ? ie + 2 : (u8 *) "";
461 ssid_len = ie ? ie[1] : 0;
462
463 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
464 wpa_ie_len = ie ? ie[1] : 0;
465
466 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
467 rsn_ie_len = ie ? ie[1] : 0;
468
469 wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
470 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
471 i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len),
472 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
473 wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ?
474 " wps" : "");
475
476 e = wpa_blacklist_get(wpa_s, bss->bssid);
477 if (e) {
478 int limit = 1;
479 if (wpa_supplicant_enabled_networks(wpa_s->conf) == 1) {
480 /*
481 * When only a single network is enabled, we can
482 * trigger blacklisting on the first failure. This
483 * should not be done with multiple enabled networks to
484 * avoid getting forced to move into a worse ESS on
485 * single error if there are no other BSSes of the
486 * current ESS.
487 */
488 limit = 0;
489 }
490 if (e->count > limit) {
491 wpa_printf(MSG_DEBUG, " skip - blacklisted "
492 "(count=%d limit=%d)", e->count, limit);
493 return 0;
494 }
495 }
496
497 if (ssid_len == 0) {
498 wpa_printf(MSG_DEBUG, " skip - SSID not known");
499 return 0;
500 }
501
502 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
503
504 for (ssid = group; ssid; ssid = ssid->pnext) {
505 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
506
507 if (ssid->disabled) {
508 wpa_printf(MSG_DEBUG, " skip - disabled");
509 continue;
510 }
511
512 #ifdef CONFIG_WPS
513 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
514 wpa_printf(MSG_DEBUG, " skip - blacklisted (WPS)");
515 continue;
516 }
517
518 if (wpa && ssid->ssid_len == 0 &&
519 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
520 check_ssid = 0;
521
522 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
523 /* Only allow wildcard SSID match if an AP
524 * advertises active WPS operation that matches
525 * with our mode. */
526 check_ssid = 1;
527 if (ssid->ssid_len == 0 &&
528 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
529 check_ssid = 0;
530 }
531 #endif /* CONFIG_WPS */
532
533 if (check_ssid &&
534 (ssid_len != ssid->ssid_len ||
535 os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
536 wpa_printf(MSG_DEBUG, " skip - SSID mismatch");
537 continue;
538 }
539
540 if (ssid->bssid_set &&
541 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
542 wpa_printf(MSG_DEBUG, " skip - BSSID mismatch");
543 continue;
544 }
545
546 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
547 continue;
548
549 if (!wpa &&
550 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
551 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
552 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
553 wpa_printf(MSG_DEBUG, " skip - non-WPA network not "
554 "allowed");
555 continue;
556 }
557
558 if (!wpa && !wpa_supplicant_match_privacy(bss, ssid)) {
559 wpa_printf(MSG_DEBUG, " skip - privacy mismatch");
560 continue;
561 }
562
563 if (!wpa && (bss->caps & IEEE80211_CAP_IBSS)) {
564 wpa_printf(MSG_DEBUG, " skip - IBSS (adhoc) "
565 "network");
566 continue;
567 }
568
569 if (!freq_allowed(ssid->freq_list, bss->freq)) {
570 wpa_printf(MSG_DEBUG, " skip - frequency not "
571 "allowed");
572 continue;
573 }
574
575 #ifdef CONFIG_P2P
576 /*
577 * TODO: skip the AP if its P2P IE has Group Formation
578 * bit set in the P2P Group Capability Bitmap and we
579 * are not in Group Formation with that device.
580 */
581 #endif /* CONFIG_P2P */
582
583 /* Matching configuration found */
584 return ssid;
585 }
586
587 /* No matching configuration found */
588 return 0;
589 }
590
591
592 static struct wpa_bss *
593 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
594 struct wpa_scan_results *scan_res,
595 struct wpa_ssid *group,
596 struct wpa_ssid **selected_ssid)
597 {
598 size_t i;
599
600 wpa_printf(MSG_DEBUG, "Selecting BSS from priority group %d",
601 group->priority);
602
603 for (i = 0; i < scan_res->num; i++) {
604 struct wpa_scan_res *bss = scan_res->res[i];
605 const u8 *ie, *ssid;
606 u8 ssid_len;
607
608 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
609 if (!*selected_ssid)
610 continue;
611
612 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
613 ssid = ie ? ie + 2 : (u8 *) "";
614 ssid_len = ie ? ie[1] : 0;
615
616 wpa_printf(MSG_DEBUG, " selected BSS " MACSTR " ssid='%s'",
617 MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len));
618 return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len);
619 }
620
621 return NULL;
622 }
623
624
625 static struct wpa_bss *
626 wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
627 struct wpa_scan_results *scan_res,
628 struct wpa_ssid **selected_ssid)
629 {
630 struct wpa_bss *selected = NULL;
631 int prio;
632
633 while (selected == NULL) {
634 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
635 selected = wpa_supplicant_select_bss(
636 wpa_s, scan_res, wpa_s->conf->pssid[prio],
637 selected_ssid);
638 if (selected)
639 break;
640 }
641
642 if (selected == NULL && wpa_s->blacklist) {
643 wpa_printf(MSG_DEBUG, "No APs found - clear blacklist "
644 "and try again");
645 wpa_blacklist_clear(wpa_s);
646 wpa_s->blacklist_cleared++;
647 } else if (selected == NULL)
648 break;
649 }
650
651 return selected;
652 }
653
654
655 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
656 int timeout_sec, int timeout_usec)
657 {
658 if (!wpa_supplicant_enabled_networks(wpa_s->conf)) {
659 /*
660 * No networks are enabled; short-circuit request so
661 * we don't wait timeout seconds before transitioning
662 * to INACTIVE state.
663 */
664 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
665 return;
666 }
667 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
668 }
669
670
671 void wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
672 struct wpa_bss *selected,
673 struct wpa_ssid *ssid)
674 {
675 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
676 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
677 "PBC session overlap");
678 #ifdef CONFIG_P2P
679 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
680 return;
681 #endif /* CONFIG_P2P */
682
683 #ifdef CONFIG_WPS
684 wpas_wps_cancel(wpa_s);
685 #endif /* CONFIG_WPS */
686 return;
687 }
688
689 /*
690 * Do not trigger new association unless the BSSID has changed or if
691 * reassociation is requested. If we are in process of associating with
692 * the selected BSSID, do not trigger new attempt.
693 */
694 if (wpa_s->reassociate ||
695 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
696 (wpa_s->wpa_state != WPA_ASSOCIATING ||
697 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
698 0))) {
699 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
700 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
701 return;
702 }
703 wpa_supplicant_associate(wpa_s, selected, ssid);
704 } else {
705 wpa_printf(MSG_DEBUG, "Already associated with the selected "
706 "AP");
707 }
708 }
709
710
711 static struct wpa_ssid *
712 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
713 {
714 int prio;
715 struct wpa_ssid *ssid;
716
717 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
718 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
719 {
720 if (ssid->disabled)
721 continue;
722 if (ssid->mode == IEEE80211_MODE_IBSS ||
723 ssid->mode == IEEE80211_MODE_AP)
724 return ssid;
725 }
726 }
727 return NULL;
728 }
729
730
731 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
732 * on BSS added and BSS changed events */
733 static void wpa_supplicant_rsn_preauth_scan_results(
734 struct wpa_supplicant *wpa_s, struct wpa_scan_results *scan_res)
735 {
736 int i;
737
738 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
739 return;
740
741 for (i = scan_res->num - 1; i >= 0; i--) {
742 const u8 *ssid, *rsn;
743 struct wpa_scan_res *r;
744
745 r = scan_res->res[i];
746
747 ssid = wpa_scan_get_ie(r, WLAN_EID_SSID);
748 if (ssid == NULL)
749 continue;
750
751 rsn = wpa_scan_get_ie(r, WLAN_EID_RSN);
752 if (rsn == NULL)
753 continue;
754
755 rsn_preauth_scan_result(wpa_s->wpa, r->bssid, ssid, rsn);
756 }
757
758 }
759
760
761 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
762 struct wpa_bss *selected,
763 struct wpa_ssid *ssid,
764 struct wpa_scan_results *scan_res)
765 {
766 size_t i;
767 struct wpa_scan_res *current_bss = NULL;
768 int min_diff;
769
770 if (wpa_s->reassociate)
771 return 1; /* explicit request to reassociate */
772 if (wpa_s->wpa_state < WPA_ASSOCIATED)
773 return 1; /* we are not associated; continue */
774 if (wpa_s->current_ssid == NULL)
775 return 1; /* unknown current SSID */
776 if (wpa_s->current_ssid != ssid)
777 return 1; /* different network block */
778
779 for (i = 0; i < scan_res->num; i++) {
780 struct wpa_scan_res *res = scan_res->res[i];
781 const u8 *ie;
782 if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0)
783 continue;
784
785 ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
786 if (ie == NULL)
787 continue;
788 if (ie[1] != wpa_s->current_ssid->ssid_len ||
789 os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0)
790 continue;
791 current_bss = res;
792 break;
793 }
794
795 if (!current_bss)
796 return 1; /* current BSS not seen in scan results */
797
798 wpa_printf(MSG_DEBUG, "Considering within-ESS reassociation");
799 wpa_printf(MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
800 MAC2STR(current_bss->bssid), current_bss->level);
801 wpa_printf(MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
802 MAC2STR(selected->bssid), selected->level);
803
804 if (wpa_s->current_ssid->bssid_set &&
805 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
806 0) {
807 wpa_printf(MSG_DEBUG, "Allow reassociation - selected BSS has "
808 "preferred BSSID");
809 return 1;
810 }
811
812 min_diff = 2;
813 if (current_bss->level < 0) {
814 if (current_bss->level < -85)
815 min_diff = 1;
816 else if (current_bss->level < -80)
817 min_diff = 2;
818 else if (current_bss->level < -75)
819 min_diff = 3;
820 else if (current_bss->level < -70)
821 min_diff = 4;
822 else
823 min_diff = 5;
824 }
825 if (abs(current_bss->level - selected->level) < min_diff) {
826 wpa_printf(MSG_DEBUG, "Skip roam - too small difference in "
827 "signal level");
828 return 0;
829 }
830
831 return 1;
832 }
833
834
835 static void _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
836 union wpa_event_data *data)
837 {
838 struct wpa_bss *selected;
839 struct wpa_ssid *ssid = NULL;
840 struct wpa_scan_results *scan_res;
841 int ap = 0;
842
843 #ifdef CONFIG_AP
844 if (wpa_s->ap_iface)
845 ap = 1;
846 #endif /* CONFIG_AP */
847
848 wpa_supplicant_notify_scanning(wpa_s, 0);
849
850 scan_res = wpa_supplicant_get_scan_results(wpa_s,
851 data ? &data->scan_info :
852 NULL, 1);
853 if (scan_res == NULL) {
854 if (wpa_s->conf->ap_scan == 2 || ap)
855 return;
856 wpa_printf(MSG_DEBUG, "Failed to get scan results - try "
857 "scanning again");
858 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
859 return;
860 }
861
862 #ifndef CONFIG_NO_RANDOM_POOL
863 size_t i, num;
864 num = scan_res->num;
865 if (num > 10)
866 num = 10;
867 for (i = 0; i < num; i++) {
868 u8 buf[5];
869 struct wpa_scan_res *res = scan_res->res[i];
870 buf[0] = res->bssid[5];
871 buf[1] = res->qual & 0xff;
872 buf[2] = res->noise & 0xff;
873 buf[3] = res->level & 0xff;
874 buf[4] = res->tsf & 0xff;
875 random_add_randomness(buf, sizeof(buf));
876 }
877 #endif /* CONFIG_NO_RANDOM_POOL */
878
879 if (wpa_s->scan_res_handler) {
880 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
881 struct wpa_scan_results *scan_res);
882
883 scan_res_handler = wpa_s->scan_res_handler;
884 wpa_s->scan_res_handler = NULL;
885 scan_res_handler(wpa_s, scan_res);
886
887 wpa_scan_results_free(scan_res);
888 return;
889 }
890
891 if (ap) {
892 wpa_printf(MSG_DEBUG, "Ignore scan results in AP mode");
893 wpa_scan_results_free(scan_res);
894 return;
895 }
896
897 wpa_printf(MSG_DEBUG, "%s: New scan results available", wpa_s->ifname);
898 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
899 wpas_notify_scan_results(wpa_s);
900
901 wpas_notify_scan_done(wpa_s, 1);
902
903 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
904 wpa_scan_results_free(scan_res);
905 return;
906 }
907
908 if (wpa_s->disconnected) {
909 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
910 wpa_scan_results_free(scan_res);
911 return;
912 }
913
914 if (bgscan_notify_scan(wpa_s, scan_res) == 1) {
915 wpa_scan_results_free(scan_res);
916 return;
917 }
918
919 wpa_supplicant_rsn_preauth_scan_results(wpa_s, scan_res);
920
921 selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
922
923 if (selected) {
924 int skip;
925 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid,
926 scan_res);
927 wpa_scan_results_free(scan_res);
928 if (skip)
929 return;
930 wpa_supplicant_connect(wpa_s, selected, ssid);
931 } else {
932 wpa_scan_results_free(scan_res);
933 wpa_printf(MSG_DEBUG, "No suitable network found");
934 ssid = wpa_supplicant_pick_new_network(wpa_s);
935 if (ssid) {
936 wpa_printf(MSG_DEBUG, "Setup a new network");
937 wpa_supplicant_associate(wpa_s, NULL, ssid);
938 } else {
939 int timeout_sec = 5;
940 int timeout_usec = 0;
941 #ifdef CONFIG_P2P
942 if (wpa_s->p2p_in_provisioning) {
943 /*
944 * Use shorter wait during P2P Provisioning
945 * state to speed up group formation.
946 */
947 timeout_sec = 0;
948 timeout_usec = 250000;
949 }
950 #endif /* CONFIG_P2P */
951 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
952 timeout_usec);
953 }
954 }
955 }
956
957
958 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
959 union wpa_event_data *data)
960 {
961 const char *rn, *rn2;
962 struct wpa_supplicant *ifs;
963
964 _wpa_supplicant_event_scan_results(wpa_s, data);
965
966 /*
967 * Check other interfaces to see if they have the same radio-name. If
968 * so, they get updated with this same scan info.
969 */
970 if (!wpa_s->driver->get_radio_name)
971 return;
972
973 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
974 if (rn == NULL || rn[0] == '\0')
975 return;
976
977 wpa_printf(MSG_DEBUG, "%s: Checking for other virtual interfaces "
978 "sharing same radio (%s) in event_scan_results",
979 wpa_s->ifname, rn);
980
981 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
982 if (ifs == wpa_s || !ifs->driver->get_radio_name)
983 continue;
984
985 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
986 if (rn2 && os_strcmp(rn, rn2) == 0) {
987 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
988 "sibling", ifs->ifname);
989 _wpa_supplicant_event_scan_results(ifs, data);
990 }
991 }
992 }
993
994 #endif /* CONFIG_NO_SCAN_PROCESSING */
995
996
997 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
998 union wpa_event_data *data)
999 {
1000 int l, len, found = 0, wpa_found, rsn_found;
1001 const u8 *p;
1002
1003 wpa_printf(MSG_DEBUG, "Association info event");
1004 if (data->assoc_info.req_ies)
1005 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1006 data->assoc_info.req_ies_len);
1007 if (data->assoc_info.resp_ies)
1008 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1009 data->assoc_info.resp_ies_len);
1010 if (data->assoc_info.beacon_ies)
1011 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1012 data->assoc_info.beacon_ies,
1013 data->assoc_info.beacon_ies_len);
1014 if (data->assoc_info.freq)
1015 wpa_printf(MSG_DEBUG, "freq=%u MHz", data->assoc_info.freq);
1016
1017 p = data->assoc_info.req_ies;
1018 l = data->assoc_info.req_ies_len;
1019
1020 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1021 while (p && l >= 2) {
1022 len = p[1] + 2;
1023 if (len > l) {
1024 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1025 p, l);
1026 break;
1027 }
1028 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1029 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1030 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1031 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1032 break;
1033 found = 1;
1034 wpa_find_assoc_pmkid(wpa_s);
1035 break;
1036 }
1037 l -= len;
1038 p += len;
1039 }
1040 if (!found && data->assoc_info.req_ies)
1041 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1042
1043 #ifdef CONFIG_IEEE80211R
1044 #ifdef CONFIG_SME
1045 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1046 u8 bssid[ETH_ALEN];
1047 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1048 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1049 data->assoc_info.resp_ies,
1050 data->assoc_info.resp_ies_len,
1051 bssid) < 0) {
1052 wpa_printf(MSG_DEBUG, "FT: Validation of "
1053 "Reassociation Response failed");
1054 wpa_supplicant_deauthenticate(
1055 wpa_s, WLAN_REASON_INVALID_IE);
1056 return -1;
1057 }
1058 }
1059
1060 p = data->assoc_info.resp_ies;
1061 l = data->assoc_info.resp_ies_len;
1062
1063 #ifdef CONFIG_WPS_STRICT
1064 if (wpa_s->current_ssid &&
1065 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1066 struct wpabuf *wps;
1067 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1068 if (wps == NULL) {
1069 wpa_printf(MSG_INFO, "WPS-STRICT: AP did not include "
1070 "WPS IE in (Re)Association Response");
1071 return -1;
1072 }
1073
1074 if (wps_validate_assoc_resp(wps) < 0) {
1075 wpabuf_free(wps);
1076 wpa_supplicant_deauthenticate(
1077 wpa_s, WLAN_REASON_INVALID_IE);
1078 return -1;
1079 }
1080 wpabuf_free(wps);
1081 }
1082 #endif /* CONFIG_WPS_STRICT */
1083
1084 /* Go through the IEs and make a copy of the MDIE, if present. */
1085 while (p && l >= 2) {
1086 len = p[1] + 2;
1087 if (len > l) {
1088 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1089 p, l);
1090 break;
1091 }
1092 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1093 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1094 wpa_s->sme.ft_used = 1;
1095 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1096 MOBILITY_DOMAIN_ID_LEN);
1097 break;
1098 }
1099 l -= len;
1100 p += len;
1101 }
1102 #endif /* CONFIG_SME */
1103
1104 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1105 data->assoc_info.resp_ies_len);
1106 #endif /* CONFIG_IEEE80211R */
1107
1108 /* WPA/RSN IE from Beacon/ProbeResp */
1109 p = data->assoc_info.beacon_ies;
1110 l = data->assoc_info.beacon_ies_len;
1111
1112 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1113 */
1114 wpa_found = rsn_found = 0;
1115 while (p && l >= 2) {
1116 len = p[1] + 2;
1117 if (len > l) {
1118 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1119 p, l);
1120 break;
1121 }
1122 if (!wpa_found &&
1123 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1124 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1125 wpa_found = 1;
1126 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1127 }
1128
1129 if (!rsn_found &&
1130 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1131 rsn_found = 1;
1132 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1133 }
1134
1135 l -= len;
1136 p += len;
1137 }
1138
1139 if (!wpa_found && data->assoc_info.beacon_ies)
1140 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1141 if (!rsn_found && data->assoc_info.beacon_ies)
1142 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1143 if (wpa_found || rsn_found)
1144 wpa_s->ap_ies_from_associnfo = 1;
1145
1146 wpa_s->assoc_freq = data->assoc_info.freq;
1147
1148 return 0;
1149 }
1150
1151
1152 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1153 union wpa_event_data *data)
1154 {
1155 u8 bssid[ETH_ALEN];
1156 int ft_completed;
1157 int bssid_changed;
1158 struct wpa_driver_capa capa;
1159
1160 #ifdef CONFIG_AP
1161 if (wpa_s->ap_iface) {
1162 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1163 data->assoc_info.addr,
1164 data->assoc_info.req_ies,
1165 data->assoc_info.req_ies_len);
1166 return;
1167 }
1168 #endif /* CONFIG_AP */
1169
1170 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1171 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1172 return;
1173
1174 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
1175 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
1176 os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
1177 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) ||
1178 (wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
1179 os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0)) {
1180 wpa_msg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1181 MACSTR, MAC2STR(bssid));
1182 random_add_randomness(bssid, ETH_ALEN);
1183 bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN);
1184 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1185 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1186 if (bssid_changed)
1187 wpas_notify_bssid_changed(wpa_s);
1188
1189 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1190 wpa_clear_keys(wpa_s, bssid);
1191 }
1192 if (wpa_supplicant_select_config(wpa_s) < 0) {
1193 wpa_supplicant_disassociate(
1194 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1195 return;
1196 }
1197 if (wpa_s->current_ssid) {
1198 struct wpa_bss *bss = NULL;
1199 struct wpa_ssid *ssid = wpa_s->current_ssid;
1200 if (ssid->ssid_len > 0)
1201 bss = wpa_bss_get(wpa_s, bssid,
1202 ssid->ssid, ssid->ssid_len);
1203 if (!bss)
1204 bss = wpa_bss_get_bssid(wpa_s, bssid);
1205 if (bss)
1206 wpa_s->current_bss = bss;
1207 }
1208 }
1209
1210 #ifdef CONFIG_SME
1211 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1212 wpa_s->sme.prev_bssid_set = 1;
1213 #endif /* CONFIG_SME */
1214
1215 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1216 if (wpa_s->current_ssid) {
1217 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1218 * initialized before association, but for other modes,
1219 * initialize PC/SC here, if the current configuration needs
1220 * smartcard or SIM/USIM. */
1221 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1222 }
1223 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1224 if (wpa_s->l2)
1225 l2_packet_notify_auth_start(wpa_s->l2);
1226
1227 /*
1228 * Set portEnabled first to FALSE in order to get EAP state machine out
1229 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1230 * state machine may transit to AUTHENTICATING state based on obsolete
1231 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1232 * AUTHENTICATED without ever giving chance to EAP state machine to
1233 * reset the state.
1234 */
1235 if (!ft_completed) {
1236 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1237 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1238 }
1239 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1240 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1241 /* 802.1X::portControl = Auto */
1242 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1243 wpa_s->eapol_received = 0;
1244 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1245 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1246 (wpa_s->current_ssid &&
1247 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1248 wpa_supplicant_cancel_auth_timeout(wpa_s);
1249 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1250 } else if (!ft_completed) {
1251 /* Timeout for receiving the first EAPOL packet */
1252 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1253 }
1254 wpa_supplicant_cancel_scan(wpa_s);
1255
1256 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1257 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1258 /*
1259 * We are done; the driver will take care of RSN 4-way
1260 * handshake.
1261 */
1262 wpa_supplicant_cancel_auth_timeout(wpa_s);
1263 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1264 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1265 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1266 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1267 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1268 /*
1269 * The driver will take care of RSN 4-way handshake, so we need
1270 * to allow EAPOL supplicant to complete its work without
1271 * waiting for WPA supplicant.
1272 */
1273 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1274 }
1275
1276 if (wpa_s->pending_eapol_rx) {
1277 struct os_time now, age;
1278 os_get_time(&now);
1279 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1280 if (age.sec == 0 && age.usec < 100000 &&
1281 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1282 0) {
1283 wpa_printf(MSG_DEBUG, "Process pending EAPOL frame "
1284 "that was received just before association "
1285 "notification");
1286 wpa_supplicant_rx_eapol(
1287 wpa_s, wpa_s->pending_eapol_rx_src,
1288 wpabuf_head(wpa_s->pending_eapol_rx),
1289 wpabuf_len(wpa_s->pending_eapol_rx));
1290 }
1291 wpabuf_free(wpa_s->pending_eapol_rx);
1292 wpa_s->pending_eapol_rx = NULL;
1293 }
1294
1295 #ifdef CONFIG_BGSCAN
1296 if (wpa_s->current_ssid != wpa_s->bgscan_ssid) {
1297 bgscan_deinit(wpa_s);
1298 if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) {
1299 if (bgscan_init(wpa_s, wpa_s->current_ssid)) {
1300 wpa_printf(MSG_DEBUG, "Failed to initialize "
1301 "bgscan");
1302 /*
1303 * Live without bgscan; it is only used as a
1304 * roaming optimization, so the initial
1305 * connection is not affected.
1306 */
1307 } else
1308 wpa_s->bgscan_ssid = wpa_s->current_ssid;
1309 } else
1310 wpa_s->bgscan_ssid = NULL;
1311 }
1312 #endif /* CONFIG_BGSCAN */
1313
1314 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1315 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
1316 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1317 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
1318 /* Set static WEP keys again */
1319 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
1320 }
1321
1322 #ifdef CONFIG_IBSS_RSN
1323 if (wpa_s->current_ssid &&
1324 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
1325 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
1326 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE)
1327 ibss_rsn_connected(wpa_s->ibss_rsn);
1328 #endif /* CONFIG_IBSS_RSN */
1329 }
1330
1331
1332 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
1333 u16 reason_code)
1334 {
1335 const u8 *bssid;
1336 #ifdef CONFIG_SME
1337 int authenticating;
1338 u8 prev_pending_bssid[ETH_ALEN];
1339
1340 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
1341 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
1342 #endif /* CONFIG_SME */
1343
1344 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1345 /*
1346 * At least Host AP driver and a Prism3 card seemed to be
1347 * generating streams of disconnected events when configuring
1348 * IBSS for WPA-None. Ignore them for now.
1349 */
1350 wpa_printf(MSG_DEBUG, "Disconnect event - ignore in "
1351 "IBSS/WPA-None mode");
1352 return;
1353 }
1354
1355 if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
1356 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1357 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
1358 "pre-shared key may be incorrect");
1359 }
1360 if (!wpa_s->auto_reconnect_disabled ||
1361 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
1362 wpa_printf(MSG_DEBUG, "WPA: Auto connect enabled: try to "
1363 "reconnect (wps=%d)",
1364 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS);
1365 if (wpa_s->wpa_state >= WPA_ASSOCIATING)
1366 wpa_supplicant_req_scan(wpa_s, 0, 100000);
1367 } else {
1368 wpa_printf(MSG_DEBUG, "WPA: Auto connect disabled: do not try "
1369 "to re-connect");
1370 wpa_s->reassociate = 0;
1371 wpa_s->disconnected = 1;
1372 }
1373 bssid = wpa_s->bssid;
1374 if (is_zero_ether_addr(bssid))
1375 bssid = wpa_s->pending_bssid;
1376 wpas_connection_failed(wpa_s, bssid);
1377 wpa_sm_notify_disassoc(wpa_s->wpa);
1378 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
1379 " reason=%d",
1380 MAC2STR(bssid), reason_code);
1381 if (wpa_supplicant_dynamic_keys(wpa_s)) {
1382 wpa_printf(MSG_DEBUG, "Disconnect event - remove keys");
1383 wpa_s->keys_cleared = 0;
1384 wpa_clear_keys(wpa_s, wpa_s->bssid);
1385 }
1386 wpa_supplicant_mark_disassoc(wpa_s);
1387 bgscan_deinit(wpa_s);
1388 wpa_s->bgscan_ssid = NULL;
1389 #ifdef CONFIG_SME
1390 if (authenticating &&
1391 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
1392 /*
1393 * mac80211-workaround to force deauth on failed auth cmd,
1394 * requires us to remain in authenticating state to allow the
1395 * second authentication attempt to be continued properly.
1396 */
1397 wpa_printf(MSG_DEBUG, "SME: Allow pending authentication to "
1398 "proceed after disconnection event");
1399 wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
1400 os_memcpy(wpa_s->pending_bssid, prev_pending_bssid, ETH_ALEN);
1401 }
1402 #endif /* CONFIG_SME */
1403 }
1404
1405
1406 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1407 static void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx,
1408 void *sock_ctx)
1409 {
1410 struct wpa_supplicant *wpa_s = eloop_ctx;
1411
1412 if (!wpa_s->pending_mic_error_report)
1413 return;
1414
1415 wpa_printf(MSG_DEBUG, "WPA: Sending pending MIC error report");
1416 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
1417 wpa_s->pending_mic_error_report = 0;
1418 }
1419 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1420
1421
1422 static void
1423 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
1424 union wpa_event_data *data)
1425 {
1426 int pairwise;
1427 struct os_time t;
1428
1429 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
1430 pairwise = (data && data->michael_mic_failure.unicast);
1431 os_get_time(&t);
1432 if ((wpa_s->last_michael_mic_error &&
1433 t.sec - wpa_s->last_michael_mic_error <= 60) ||
1434 wpa_s->pending_mic_error_report) {
1435 if (wpa_s->pending_mic_error_report) {
1436 /*
1437 * Send the pending MIC error report immediately since
1438 * we are going to start countermeasures and AP better
1439 * do the same.
1440 */
1441 wpa_sm_key_request(wpa_s->wpa, 1,
1442 wpa_s->pending_mic_error_pairwise);
1443 }
1444
1445 /* Send the new MIC error report immediately since we are going
1446 * to start countermeasures and AP better do the same.
1447 */
1448 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1449
1450 /* initialize countermeasures */
1451 wpa_s->countermeasures = 1;
1452 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
1453
1454 /*
1455 * Need to wait for completion of request frame. We do not get
1456 * any callback for the message completion, so just wait a
1457 * short while and hope for the best. */
1458 os_sleep(0, 10000);
1459
1460 wpa_drv_set_countermeasures(wpa_s, 1);
1461 wpa_supplicant_deauthenticate(wpa_s,
1462 WLAN_REASON_MICHAEL_MIC_FAILURE);
1463 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
1464 wpa_s, NULL);
1465 eloop_register_timeout(60, 0,
1466 wpa_supplicant_stop_countermeasures,
1467 wpa_s, NULL);
1468 /* TODO: mark the AP rejected for 60 second. STA is
1469 * allowed to associate with another AP.. */
1470 } else {
1471 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1472 if (wpa_s->mic_errors_seen) {
1473 /*
1474 * Reduce the effectiveness of Michael MIC error
1475 * reports as a means for attacking against TKIP if
1476 * more than one MIC failure is noticed with the same
1477 * PTK. We delay the transmission of the reports by a
1478 * random time between 0 and 60 seconds in order to
1479 * force the attacker wait 60 seconds before getting
1480 * the information on whether a frame resulted in a MIC
1481 * failure.
1482 */
1483 u8 rval[4];
1484 int sec;
1485
1486 if (os_get_random(rval, sizeof(rval)) < 0)
1487 sec = os_random() % 60;
1488 else
1489 sec = WPA_GET_BE32(rval) % 60;
1490 wpa_printf(MSG_DEBUG, "WPA: Delay MIC error report %d "
1491 "seconds", sec);
1492 wpa_s->pending_mic_error_report = 1;
1493 wpa_s->pending_mic_error_pairwise = pairwise;
1494 eloop_cancel_timeout(
1495 wpa_supplicant_delayed_mic_error_report,
1496 wpa_s, NULL);
1497 eloop_register_timeout(
1498 sec, os_random() % 1000000,
1499 wpa_supplicant_delayed_mic_error_report,
1500 wpa_s, NULL);
1501 } else {
1502 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1503 }
1504 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1505 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1506 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1507 }
1508 wpa_s->last_michael_mic_error = t.sec;
1509 wpa_s->mic_errors_seen++;
1510 }
1511
1512
1513 #ifdef CONFIG_TERMINATE_ONLASTIF
1514 static int any_interfaces(struct wpa_supplicant *head)
1515 {
1516 struct wpa_supplicant *wpa_s;
1517
1518 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
1519 if (!wpa_s->interface_removed)
1520 return 1;
1521 return 0;
1522 }
1523 #endif /* CONFIG_TERMINATE_ONLASTIF */
1524
1525
1526 static void
1527 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
1528 union wpa_event_data *data)
1529 {
1530 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
1531 return;
1532
1533 switch (data->interface_status.ievent) {
1534 case EVENT_INTERFACE_ADDED:
1535 if (!wpa_s->interface_removed)
1536 break;
1537 wpa_s->interface_removed = 0;
1538 wpa_printf(MSG_DEBUG, "Configured interface was added.");
1539 if (wpa_supplicant_driver_init(wpa_s) < 0) {
1540 wpa_printf(MSG_INFO, "Failed to initialize the driver "
1541 "after interface was added.");
1542 }
1543 break;
1544 case EVENT_INTERFACE_REMOVED:
1545 wpa_printf(MSG_DEBUG, "Configured interface was removed.");
1546 wpa_s->interface_removed = 1;
1547 wpa_supplicant_mark_disassoc(wpa_s);
1548 l2_packet_deinit(wpa_s->l2);
1549 wpa_s->l2 = NULL;
1550 #ifdef CONFIG_TERMINATE_ONLASTIF
1551 /* check if last interface */
1552 if (!any_interfaces(wpa_s->global->ifaces))
1553 eloop_terminate();
1554 #endif /* CONFIG_TERMINATE_ONLASTIF */
1555 break;
1556 }
1557 }
1558
1559
1560 #ifdef CONFIG_PEERKEY
1561 static void
1562 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
1563 union wpa_event_data *data)
1564 {
1565 if (data == NULL)
1566 return;
1567 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
1568 }
1569 #endif /* CONFIG_PEERKEY */
1570
1571
1572 #ifdef CONFIG_IEEE80211R
1573 static void
1574 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
1575 union wpa_event_data *data)
1576 {
1577 if (data == NULL)
1578 return;
1579
1580 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
1581 data->ft_ies.ies_len,
1582 data->ft_ies.ft_action,
1583 data->ft_ies.target_ap,
1584 data->ft_ies.ric_ies,
1585 data->ft_ies.ric_ies_len) < 0) {
1586 /* TODO: prevent MLME/driver from trying to associate? */
1587 }
1588 }
1589 #endif /* CONFIG_IEEE80211R */
1590
1591
1592 #ifdef CONFIG_IBSS_RSN
1593 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
1594 union wpa_event_data *data)
1595 {
1596 struct wpa_ssid *ssid;
1597 if (data == NULL)
1598 return;
1599 ssid = wpa_s->current_ssid;
1600 if (ssid == NULL)
1601 return;
1602 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
1603 return;
1604
1605 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
1606 }
1607 #endif /* CONFIG_IBSS_RSN */
1608
1609
1610 #ifdef CONFIG_IEEE80211R
1611 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
1612 size_t len)
1613 {
1614 const u8 *sta_addr, *target_ap_addr;
1615 u16 status;
1616
1617 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
1618 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1619 return; /* only SME case supported for now */
1620 if (len < 1 + 2 * ETH_ALEN + 2)
1621 return;
1622 if (data[0] != 2)
1623 return; /* Only FT Action Response is supported for now */
1624 sta_addr = data + 1;
1625 target_ap_addr = data + 1 + ETH_ALEN;
1626 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
1627 wpa_printf(MSG_DEBUG, "FT: Received FT Action Response: STA " MACSTR
1628 " TargetAP " MACSTR " status %u",
1629 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
1630
1631 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
1632 wpa_printf(MSG_DEBUG, "FT: Foreign STA Address " MACSTR
1633 " in FT Action Response", MAC2STR(sta_addr));
1634 return;
1635 }
1636
1637 if (status) {
1638 wpa_printf(MSG_DEBUG, "FT: FT Action Response indicates "
1639 "failure (status code %d)", status);
1640 /* TODO: report error to FT code(?) */
1641 return;
1642 }
1643
1644 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
1645 len - (1 + 2 * ETH_ALEN + 2), 1,
1646 target_ap_addr, NULL, 0) < 0)
1647 return;
1648
1649 #ifdef CONFIG_SME
1650 {
1651 struct wpa_bss *bss;
1652 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
1653 if (bss)
1654 wpa_s->sme.freq = bss->freq;
1655 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
1656 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
1657 WLAN_AUTH_FT);
1658 }
1659 #endif /* CONFIG_SME */
1660 }
1661 #endif /* CONFIG_IEEE80211R */
1662
1663
1664 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
1665 struct unprot_deauth *e)
1666 {
1667 #ifdef CONFIG_IEEE80211W
1668 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
1669 "dropped: " MACSTR " -> " MACSTR
1670 " (reason code %u)",
1671 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
1672 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
1673 #endif /* CONFIG_IEEE80211W */
1674 }
1675
1676
1677 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
1678 struct unprot_disassoc *e)
1679 {
1680 #ifdef CONFIG_IEEE80211W
1681 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
1682 "dropped: " MACSTR " -> " MACSTR
1683 " (reason code %u)",
1684 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
1685 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
1686 #endif /* CONFIG_IEEE80211W */
1687 }
1688
1689
1690 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
1691 union wpa_event_data *data)
1692 {
1693 struct wpa_supplicant *wpa_s = ctx;
1694 u16 reason_code = 0;
1695
1696 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
1697 event != EVENT_INTERFACE_ENABLED &&
1698 event != EVENT_INTERFACE_STATUS) {
1699 wpa_printf(MSG_DEBUG, "Ignore event %d while interface is "
1700 "disabled", event);
1701 return;
1702 }
1703
1704 wpa_printf(MSG_DEBUG, "Event %d received on interface %s",
1705 event, wpa_s->ifname);
1706
1707 switch (event) {
1708 case EVENT_AUTH:
1709 sme_event_auth(wpa_s, data);
1710 break;
1711 case EVENT_ASSOC:
1712 wpa_supplicant_event_assoc(wpa_s, data);
1713 break;
1714 case EVENT_DISASSOC:
1715 wpa_printf(MSG_DEBUG, "Disassociation notification");
1716 if (data) {
1717 wpa_printf(MSG_DEBUG, " * reason %u",
1718 data->disassoc_info.reason_code);
1719 if (data->disassoc_info.addr)
1720 wpa_printf(MSG_DEBUG, " * address " MACSTR,
1721 MAC2STR(data->disassoc_info.addr));
1722 }
1723 #ifdef CONFIG_AP
1724 if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
1725 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
1726 data->disassoc_info.addr);
1727 break;
1728 }
1729 #endif /* CONFIG_AP */
1730 if (data) {
1731 reason_code = data->disassoc_info.reason_code;
1732 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
1733 data->disassoc_info.ie,
1734 data->disassoc_info.ie_len);
1735 #ifdef CONFIG_P2P
1736 wpas_p2p_disassoc_notif(
1737 wpa_s, data->disassoc_info.addr, reason_code,
1738 data->disassoc_info.ie,
1739 data->disassoc_info.ie_len);
1740 #endif /* CONFIG_P2P */
1741 }
1742 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
1743 sme_event_disassoc(wpa_s, data);
1744 /* fall through */
1745 case EVENT_DEAUTH:
1746 if (event == EVENT_DEAUTH) {
1747 wpa_printf(MSG_DEBUG, "Deauthentication notification");
1748 if (data) {
1749 reason_code = data->deauth_info.reason_code;
1750 wpa_printf(MSG_DEBUG, " * reason %u",
1751 data->deauth_info.reason_code);
1752 if (data->deauth_info.addr) {
1753 wpa_printf(MSG_DEBUG, " * address "
1754 MACSTR,
1755 MAC2STR(data->deauth_info.
1756 addr));
1757 }
1758 wpa_hexdump(MSG_DEBUG,
1759 "Deauthentication frame IE(s)",
1760 data->deauth_info.ie,
1761 data->deauth_info.ie_len);
1762 #ifdef CONFIG_P2P
1763 wpas_p2p_deauth_notif(
1764 wpa_s, data->deauth_info.addr,
1765 reason_code,
1766 data->deauth_info.ie,
1767 data->deauth_info.ie_len);
1768 #endif /* CONFIG_P2P */
1769 }
1770 }
1771 #ifdef CONFIG_AP
1772 if (wpa_s->ap_iface && data && data->deauth_info.addr) {
1773 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
1774 data->deauth_info.addr);
1775 break;
1776 }
1777 #endif /* CONFIG_AP */
1778 wpa_supplicant_event_disassoc(wpa_s, reason_code);
1779 break;
1780 case EVENT_MICHAEL_MIC_FAILURE:
1781 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
1782 break;
1783 #ifndef CONFIG_NO_SCAN_PROCESSING
1784 case EVENT_SCAN_RESULTS:
1785 wpa_supplicant_event_scan_results(wpa_s, data);
1786 break;
1787 #endif /* CONFIG_NO_SCAN_PROCESSING */
1788 case EVENT_ASSOCINFO:
1789 wpa_supplicant_event_associnfo(wpa_s, data);
1790 break;
1791 case EVENT_INTERFACE_STATUS:
1792 wpa_supplicant_event_interface_status(wpa_s, data);
1793 break;
1794 case EVENT_PMKID_CANDIDATE:
1795 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
1796 break;
1797 #ifdef CONFIG_PEERKEY
1798 case EVENT_STKSTART:
1799 wpa_supplicant_event_stkstart(wpa_s, data);
1800 break;
1801 #endif /* CONFIG_PEERKEY */
1802 #ifdef CONFIG_IEEE80211R
1803 case EVENT_FT_RESPONSE:
1804 wpa_supplicant_event_ft_response(wpa_s, data);
1805 break;
1806 #endif /* CONFIG_IEEE80211R */
1807 #ifdef CONFIG_IBSS_RSN
1808 case EVENT_IBSS_RSN_START:
1809 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
1810 break;
1811 #endif /* CONFIG_IBSS_RSN */
1812 case EVENT_ASSOC_REJECT:
1813 if (data->assoc_reject.bssid)
1814 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
1815 "bssid=" MACSTR " status_code=%u",
1816 MAC2STR(data->assoc_reject.bssid),
1817 data->assoc_reject.status_code);
1818 else
1819 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
1820 "status_code=%u",
1821 data->assoc_reject.status_code);
1822 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
1823 sme_event_assoc_reject(wpa_s, data);
1824 break;
1825 case EVENT_AUTH_TIMED_OUT:
1826 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
1827 sme_event_auth_timed_out(wpa_s, data);
1828 break;
1829 case EVENT_ASSOC_TIMED_OUT:
1830 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
1831 sme_event_assoc_timed_out(wpa_s, data);
1832 break;
1833 #ifdef CONFIG_AP
1834 case EVENT_TX_STATUS:
1835 wpa_printf(MSG_DEBUG, "EVENT_TX_STATUS on %s dst=" MACSTR
1836 " type=%d stype=%d",
1837 wpa_s->ifname, MAC2STR(data->tx_status.dst),
1838 data->tx_status.type, data->tx_status.stype);
1839 if (wpa_s->ap_iface == NULL) {
1840 #ifdef CONFIG_P2P
1841 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
1842 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
1843 wpas_send_action_tx_status(
1844 wpa_s, data->tx_status.dst,
1845 data->tx_status.data,
1846 data->tx_status.data_len,
1847 data->tx_status.ack ?
1848 P2P_SEND_ACTION_SUCCESS :
1849 P2P_SEND_ACTION_NO_ACK);
1850 #endif /* CONFIG_P2P */
1851 break;
1852 }
1853 #ifdef CONFIG_P2P
1854 wpa_printf(MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" MACSTR,
1855 MAC2STR(wpa_s->parent->pending_action_dst));
1856 /*
1857 * Catch TX status events for Action frames we sent via group
1858 * interface in GO mode.
1859 */
1860 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
1861 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
1862 os_memcmp(wpa_s->parent->pending_action_dst,
1863 data->tx_status.dst, ETH_ALEN) == 0) {
1864 wpas_send_action_tx_status(
1865 wpa_s->parent, data->tx_status.dst,
1866 data->tx_status.data,
1867 data->tx_status.data_len,
1868 data->tx_status.ack ?
1869 P2P_SEND_ACTION_SUCCESS :
1870 P2P_SEND_ACTION_NO_ACK);
1871 break;
1872 }
1873 #endif /* CONFIG_P2P */
1874 switch (data->tx_status.type) {
1875 case WLAN_FC_TYPE_MGMT:
1876 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
1877 data->tx_status.data_len,
1878 data->tx_status.stype,
1879 data->tx_status.ack);
1880 break;
1881 case WLAN_FC_TYPE_DATA:
1882 ap_tx_status(wpa_s, data->tx_status.dst,
1883 data->tx_status.data,
1884 data->tx_status.data_len,
1885 data->tx_status.ack);
1886 break;
1887 }
1888 break;
1889 case EVENT_RX_FROM_UNKNOWN:
1890 if (wpa_s->ap_iface == NULL)
1891 break;
1892 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.frame,
1893 data->rx_from_unknown.len);
1894 break;
1895 case EVENT_RX_MGMT:
1896 if (wpa_s->ap_iface == NULL) {
1897 #ifdef CONFIG_P2P
1898 u16 fc, stype;
1899 const struct ieee80211_mgmt *mgmt;
1900 mgmt = (const struct ieee80211_mgmt *)
1901 data->rx_mgmt.frame;
1902 fc = le_to_host16(mgmt->frame_control);
1903 stype = WLAN_FC_GET_STYPE(fc);
1904 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
1905 data->rx_mgmt.frame_len > 24) {
1906 const u8 *src = mgmt->sa;
1907 const u8 *ie = mgmt->u.probe_req.variable;
1908 size_t ie_len = data->rx_mgmt.frame_len -
1909 (mgmt->u.probe_req.variable -
1910 data->rx_mgmt.frame);
1911 wpas_p2p_probe_req_rx(wpa_s, src, ie, ie_len);
1912 break;
1913 }
1914 #endif /* CONFIG_P2P */
1915 wpa_printf(MSG_DEBUG, "AP: ignore received management "
1916 "frame in non-AP mode");
1917 break;
1918 }
1919 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
1920 break;
1921 #endif /* CONFIG_AP */
1922 case EVENT_RX_ACTION:
1923 wpa_printf(MSG_DEBUG, "Received Action frame: SA=" MACSTR
1924 " Category=%u DataLen=%d freq=%d MHz",
1925 MAC2STR(data->rx_action.sa),
1926 data->rx_action.category, (int) data->rx_action.len,
1927 data->rx_action.freq);
1928 #ifdef CONFIG_IEEE80211R
1929 if (data->rx_action.category == WLAN_ACTION_FT) {
1930 ft_rx_action(wpa_s, data->rx_action.data,
1931 data->rx_action.len);
1932 break;
1933 }
1934 #endif /* CONFIG_IEEE80211R */
1935 #ifdef CONFIG_IEEE80211W
1936 #ifdef CONFIG_SME
1937 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) {
1938 sme_sa_query_rx(wpa_s, data->rx_action.sa,
1939 data->rx_action.data,
1940 data->rx_action.len);
1941 break;
1942 }
1943 #endif /* CONFIG_SME */
1944 #endif /* CONFIG_IEEE80211W */
1945 #ifdef CONFIG_P2P
1946 wpas_p2p_rx_action(wpa_s, data->rx_action.da,
1947 data->rx_action.sa,
1948 data->rx_action.bssid,
1949 data->rx_action.category,
1950 data->rx_action.data,
1951 data->rx_action.len, data->rx_action.freq);
1952 #endif /* CONFIG_P2P */
1953 break;
1954 case EVENT_RX_PROBE_REQ:
1955 #ifdef CONFIG_AP
1956 if (wpa_s->ap_iface) {
1957 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
1958 data->rx_probe_req.sa,
1959 data->rx_probe_req.ie,
1960 data->rx_probe_req.ie_len);
1961 break;
1962 }
1963 #endif /* CONFIG_AP */
1964 #ifdef CONFIG_P2P
1965 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
1966 data->rx_probe_req.ie,
1967 data->rx_probe_req.ie_len);
1968 #endif /* CONFIG_P2P */
1969 break;
1970 #ifdef CONFIG_P2P
1971 case EVENT_REMAIN_ON_CHANNEL:
1972 wpas_p2p_remain_on_channel_cb(
1973 wpa_s, data->remain_on_channel.freq,
1974 data->remain_on_channel.duration);
1975 break;
1976 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
1977 wpas_p2p_cancel_remain_on_channel_cb(
1978 wpa_s, data->remain_on_channel.freq);
1979 break;
1980 case EVENT_P2P_DEV_FOUND:
1981 wpas_dev_found(wpa_s, data->p2p_dev_found.addr,
1982 data->p2p_dev_found.dev_addr,
1983 data->p2p_dev_found.pri_dev_type,
1984 data->p2p_dev_found.dev_name,
1985 data->p2p_dev_found.config_methods,
1986 data->p2p_dev_found.dev_capab,
1987 data->p2p_dev_found.group_capab);
1988 break;
1989 case EVENT_P2P_GO_NEG_REQ_RX:
1990 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src,
1991 data->p2p_go_neg_req_rx.dev_passwd_id);
1992 break;
1993 case EVENT_P2P_GO_NEG_COMPLETED:
1994 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res);
1995 break;
1996 case EVENT_P2P_PROV_DISC_REQUEST:
1997 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer,
1998 data->p2p_prov_disc_req.config_methods,
1999 data->p2p_prov_disc_req.dev_addr,
2000 data->p2p_prov_disc_req.pri_dev_type,
2001 data->p2p_prov_disc_req.dev_name,
2002 data->p2p_prov_disc_req.supp_config_methods,
2003 data->p2p_prov_disc_req.dev_capab,
2004 data->p2p_prov_disc_req.group_capab);
2005 break;
2006 case EVENT_P2P_PROV_DISC_RESPONSE:
2007 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer,
2008 data->p2p_prov_disc_resp.config_methods);
2009 break;
2010 case EVENT_P2P_SD_REQUEST:
2011 wpas_sd_request(wpa_s, data->p2p_sd_req.freq,
2012 data->p2p_sd_req.sa,
2013 data->p2p_sd_req.dialog_token,
2014 data->p2p_sd_req.update_indic,
2015 data->p2p_sd_req.tlvs,
2016 data->p2p_sd_req.tlvs_len);
2017 break;
2018 case EVENT_P2P_SD_RESPONSE:
2019 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa,
2020 data->p2p_sd_resp.update_indic,
2021 data->p2p_sd_resp.tlvs,
2022 data->p2p_sd_resp.tlvs_len);
2023 break;
2024 #endif /* CONFIG_P2P */
2025 #ifdef CONFIG_CLIENT_MLME
2026 case EVENT_MLME_RX: {
2027 struct ieee80211_rx_status rx_status;
2028 os_memset(&rx_status, 0, sizeof(rx_status));
2029 rx_status.freq = data->mlme_rx.freq;
2030 rx_status.channel = data->mlme_rx.channel;
2031 rx_status.ssi = data->mlme_rx.ssi;
2032 ieee80211_sta_rx(wpa_s, data->mlme_rx.buf, data->mlme_rx.len,
2033 &rx_status);
2034 break;
2035 }
2036 #endif /* CONFIG_CLIENT_MLME */
2037 case EVENT_EAPOL_RX:
2038 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
2039 data->eapol_rx.data,
2040 data->eapol_rx.data_len);
2041 break;
2042 case EVENT_SIGNAL_CHANGE:
2043 bgscan_notify_signal_change(
2044 wpa_s, data->signal_change.above_threshold,
2045 data->signal_change.current_signal,
2046 data->signal_change.current_noise,
2047 data->signal_change.current_txrate);
2048 break;
2049 case EVENT_INTERFACE_ENABLED:
2050 wpa_printf(MSG_DEBUG, "Interface was enabled");
2051 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
2052 #ifdef CONFIG_AP
2053 if (!wpa_s->ap_iface) {
2054 wpa_supplicant_set_state(wpa_s,
2055 WPA_DISCONNECTED);
2056 wpa_supplicant_req_scan(wpa_s, 0, 0);
2057 } else
2058 wpa_supplicant_set_state(wpa_s,
2059 WPA_COMPLETED);
2060 #else /* CONFIG_AP */
2061 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2062 wpa_supplicant_req_scan(wpa_s, 0, 0);
2063 #endif /* CONFIG_AP */
2064 }
2065 break;
2066 case EVENT_INTERFACE_DISABLED:
2067 wpa_printf(MSG_DEBUG, "Interface was disabled");
2068 wpa_supplicant_mark_disassoc(wpa_s);
2069 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2070 break;
2071 case EVENT_CHANNEL_LIST_CHANGED:
2072 if (wpa_s->drv_priv == NULL)
2073 break; /* Ignore event during drv initialization */
2074 #ifdef CONFIG_P2P
2075 wpas_p2p_update_channel_list(wpa_s);
2076 #endif /* CONFIG_P2P */
2077 break;
2078 case EVENT_INTERFACE_UNAVAILABLE:
2079 #ifdef CONFIG_P2P
2080 wpas_p2p_interface_unavailable(wpa_s);
2081 #endif /* CONFIG_P2P */
2082 break;
2083 case EVENT_BEST_CHANNEL:
2084 wpa_printf(MSG_DEBUG, "Best channel event received (%d %d %d)",
2085 data->best_chan.freq_24, data->best_chan.freq_5,
2086 data->best_chan.freq_overall);
2087 wpa_s->best_24_freq = data->best_chan.freq_24;
2088 wpa_s->best_5_freq = data->best_chan.freq_5;
2089 wpa_s->best_overall_freq = data->best_chan.freq_overall;
2090 #ifdef CONFIG_P2P
2091 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
2092 data->best_chan.freq_5,
2093 data->best_chan.freq_overall);
2094 #endif /* CONFIG_P2P */
2095 break;
2096 case EVENT_UNPROT_DEAUTH:
2097 wpa_supplicant_event_unprot_deauth(wpa_s,
2098 &data->unprot_deauth);
2099 break;
2100 case EVENT_UNPROT_DISASSOC:
2101 wpa_supplicant_event_unprot_disassoc(wpa_s,
2102 &data->unprot_disassoc);
2103 break;
2104 case EVENT_STATION_LOW_ACK:
2105 #ifdef CONFIG_AP
2106 if (wpa_s->ap_iface && data)
2107 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
2108 data->low_ack.addr);
2109 #endif /* CONFIG_AP */
2110 break;
2111 default:
2112 wpa_printf(MSG_INFO, "Unknown event %d", event);
2113 break;
2114 }
2115 }
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