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Fix TKIP countermeasures stopping in deinit paths
[thirdparty/hostap.git] / wpa_supplicant / events.c
1 /*
2 * WPA Supplicant - Driver event processing
3 * Copyright (c) 2003-2011, 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 "gas_query.h"
42 #include "p2p_supplicant.h"
43 #include "bgscan.h"
44 #include "ap.h"
45 #include "bss.h"
46 #include "scan.h"
47 #include "offchannel.h"
48
49
50 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
51 {
52 struct wpa_ssid *ssid, *old_ssid;
53
54 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
55 return 0;
56
57 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
58 "information");
59 ssid = wpa_supplicant_get_ssid(wpa_s);
60 if (ssid == NULL) {
61 wpa_msg(wpa_s, MSG_INFO,
62 "No network configuration found for the current AP");
63 return -1;
64 }
65
66 if (ssid->disabled) {
67 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
68 return -1;
69 }
70
71 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
72 "current AP");
73 if (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
74 WPA_KEY_MGMT_WPA_NONE |
75 WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X |
76 WPA_KEY_MGMT_PSK_SHA256 |
77 WPA_KEY_MGMT_IEEE8021X_SHA256)) {
78 u8 wpa_ie[80];
79 size_t wpa_ie_len = sizeof(wpa_ie);
80 wpa_supplicant_set_suites(wpa_s, NULL, ssid,
81 wpa_ie, &wpa_ie_len);
82 } else {
83 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
84 }
85
86 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
87 eapol_sm_invalidate_cached_session(wpa_s->eapol);
88 old_ssid = wpa_s->current_ssid;
89 wpa_s->current_ssid = ssid;
90 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
91 wpa_supplicant_initiate_eapol(wpa_s);
92 if (old_ssid != wpa_s->current_ssid)
93 wpas_notify_network_changed(wpa_s);
94
95 return 0;
96 }
97
98
99 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, 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 #ifdef CONFIG_IBSS_RSN
117 ibss_rsn_deinit(wpa_s->ibss_rsn);
118 wpa_s->ibss_rsn = NULL;
119 #endif /* CONFIG_IBSS_RSN */
120
121 #ifdef CONFIG_AP
122 wpa_supplicant_ap_deinit(wpa_s);
123 #endif /* CONFIG_AP */
124
125 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
126 return;
127
128 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
129 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
130 os_memset(wpa_s->bssid, 0, ETH_ALEN);
131 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
132 wpa_s->current_bss = NULL;
133 wpa_s->assoc_freq = 0;
134 #ifdef CONFIG_IEEE80211R
135 #ifdef CONFIG_SME
136 if (wpa_s->sme.ft_ies)
137 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
138 #endif /* CONFIG_SME */
139 #endif /* CONFIG_IEEE80211R */
140
141 if (bssid_changed)
142 wpas_notify_bssid_changed(wpa_s);
143
144 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
145 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
146 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
147 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
148 wpa_s->ap_ies_from_associnfo = 0;
149 }
150
151
152 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
153 {
154 struct wpa_ie_data ie;
155 int pmksa_set = -1;
156 size_t i;
157
158 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
159 ie.pmkid == NULL)
160 return;
161
162 for (i = 0; i < ie.num_pmkid; i++) {
163 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
164 ie.pmkid + i * PMKID_LEN,
165 NULL, NULL, 0);
166 if (pmksa_set == 0) {
167 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
168 break;
169 }
170 }
171
172 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
173 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
174 }
175
176
177 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
178 union wpa_event_data *data)
179 {
180 if (data == NULL) {
181 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
182 "event");
183 return;
184 }
185 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
186 " index=%d preauth=%d",
187 MAC2STR(data->pmkid_candidate.bssid),
188 data->pmkid_candidate.index,
189 data->pmkid_candidate.preauth);
190
191 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
192 data->pmkid_candidate.index,
193 data->pmkid_candidate.preauth);
194 }
195
196
197 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
198 {
199 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
200 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
201 return 0;
202
203 #ifdef IEEE8021X_EAPOL
204 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
205 wpa_s->current_ssid &&
206 !(wpa_s->current_ssid->eapol_flags &
207 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
208 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
209 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
210 * plaintext or static WEP keys). */
211 return 0;
212 }
213 #endif /* IEEE8021X_EAPOL */
214
215 return 1;
216 }
217
218
219 /**
220 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
221 * @wpa_s: pointer to wpa_supplicant data
222 * @ssid: Configuration data for the network
223 * Returns: 0 on success, -1 on failure
224 *
225 * This function is called when starting authentication with a network that is
226 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
227 */
228 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
229 struct wpa_ssid *ssid)
230 {
231 #ifdef IEEE8021X_EAPOL
232 #ifdef PCSC_FUNCS
233 int aka = 0, sim = 0, type;
234
235 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
236 return 0;
237
238 if (ssid->eap.eap_methods == NULL) {
239 sim = 1;
240 aka = 1;
241 } else {
242 struct eap_method_type *eap = ssid->eap.eap_methods;
243 while (eap->vendor != EAP_VENDOR_IETF ||
244 eap->method != EAP_TYPE_NONE) {
245 if (eap->vendor == EAP_VENDOR_IETF) {
246 if (eap->method == EAP_TYPE_SIM)
247 sim = 1;
248 else if (eap->method == EAP_TYPE_AKA)
249 aka = 1;
250 }
251 eap++;
252 }
253 }
254
255 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
256 sim = 0;
257 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL)
258 aka = 0;
259
260 if (!sim && !aka) {
261 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
262 "use SIM, but neither EAP-SIM nor EAP-AKA are "
263 "enabled");
264 return 0;
265 }
266
267 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
268 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
269 if (sim && aka)
270 type = SCARD_TRY_BOTH;
271 else if (aka)
272 type = SCARD_USIM_ONLY;
273 else
274 type = SCARD_GSM_SIM_ONLY;
275
276 wpa_s->scard = scard_init(type);
277 if (wpa_s->scard == NULL) {
278 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
279 "(pcsc-lite)");
280 return -1;
281 }
282 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
283 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
284 #endif /* PCSC_FUNCS */
285 #endif /* IEEE8021X_EAPOL */
286
287 return 0;
288 }
289
290
291 #ifndef CONFIG_NO_SCAN_PROCESSING
292 static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
293 struct wpa_ssid *ssid)
294 {
295 int i, privacy = 0;
296
297 if (ssid->mixed_cell)
298 return 1;
299
300 #ifdef CONFIG_WPS
301 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
302 return 1;
303 #endif /* CONFIG_WPS */
304
305 for (i = 0; i < NUM_WEP_KEYS; i++) {
306 if (ssid->wep_key_len[i]) {
307 privacy = 1;
308 break;
309 }
310 }
311 #ifdef IEEE8021X_EAPOL
312 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
313 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
314 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
315 privacy = 1;
316 #endif /* IEEE8021X_EAPOL */
317
318 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
319 privacy = 1;
320
321 if (bss->caps & IEEE80211_CAP_PRIVACY)
322 return privacy;
323 return !privacy;
324 }
325
326
327 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
328 struct wpa_ssid *ssid,
329 struct wpa_scan_res *bss)
330 {
331 struct wpa_ie_data ie;
332 int proto_match = 0;
333 const u8 *rsn_ie, *wpa_ie;
334 int ret;
335 int wep_ok;
336
337 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
338 if (ret >= 0)
339 return ret;
340
341 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
342 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
343 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
344 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
345 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
346
347 rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
348 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
349 proto_match++;
350
351 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
352 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
353 "failed");
354 break;
355 }
356
357 if (wep_ok &&
358 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
359 {
360 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
361 "in RSN IE");
362 return 1;
363 }
364
365 if (!(ie.proto & ssid->proto)) {
366 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
367 "mismatch");
368 break;
369 }
370
371 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
372 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
373 "cipher mismatch");
374 break;
375 }
376
377 if (!(ie.group_cipher & ssid->group_cipher)) {
378 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
379 "cipher mismatch");
380 break;
381 }
382
383 if (!(ie.key_mgmt & ssid->key_mgmt)) {
384 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
385 "mismatch");
386 break;
387 }
388
389 #ifdef CONFIG_IEEE80211W
390 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
391 ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
392 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
393 "frame protection");
394 break;
395 }
396 #endif /* CONFIG_IEEE80211W */
397
398 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
399 return 1;
400 }
401
402 wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
403 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
404 proto_match++;
405
406 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
407 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
408 "failed");
409 break;
410 }
411
412 if (wep_ok &&
413 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
414 {
415 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
416 "in WPA IE");
417 return 1;
418 }
419
420 if (!(ie.proto & ssid->proto)) {
421 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
422 "mismatch");
423 break;
424 }
425
426 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
427 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
428 "cipher mismatch");
429 break;
430 }
431
432 if (!(ie.group_cipher & ssid->group_cipher)) {
433 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
434 "cipher mismatch");
435 break;
436 }
437
438 if (!(ie.key_mgmt & ssid->key_mgmt)) {
439 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
440 "mismatch");
441 break;
442 }
443
444 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
445 return 1;
446 }
447
448 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
449 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
450 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
451 return 0;
452 }
453
454 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
455 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
456 return 1;
457 }
458
459 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
460 "WPA/WPA2");
461
462 return 0;
463 }
464
465
466 static int freq_allowed(int *freqs, int freq)
467 {
468 int i;
469
470 if (freqs == NULL)
471 return 1;
472
473 for (i = 0; freqs[i]; i++)
474 if (freqs[i] == freq)
475 return 1;
476 return 0;
477 }
478
479
480 static int ht_supported(const struct hostapd_hw_modes *mode)
481 {
482 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) {
483 /*
484 * The driver did not indicate whether it supports HT. Assume
485 * it does to avoid connection issues.
486 */
487 return 1;
488 }
489
490 /*
491 * IEEE Std 802.11n-2009 20.1.1:
492 * An HT non-AP STA shall support all EQM rates for one spatial stream.
493 */
494 return mode->mcs_set[0] == 0xff;
495 }
496
497
498 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_scan_res *bss)
499 {
500 const struct hostapd_hw_modes *mode = NULL, *modes;
501 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
502 const u8 *rate_ie;
503 int i, j, k;
504
505 if (bss->freq == 0)
506 return 1; /* Cannot do matching without knowing band */
507
508 modes = wpa_s->hw.modes;
509 if (modes == NULL) {
510 /*
511 * The driver does not provide any additional information
512 * about the utilized hardware, so allow the connection attempt
513 * to continue.
514 */
515 return 1;
516 }
517
518 for (i = 0; i < wpa_s->hw.num_modes; i++) {
519 for (j = 0; j < modes[i].num_channels; j++) {
520 int freq = modes[i].channels[j].freq;
521 if (freq == bss->freq) {
522 if (mode &&
523 mode->mode == HOSTAPD_MODE_IEEE80211G)
524 break; /* do not allow 802.11b replace
525 * 802.11g */
526 mode = &modes[i];
527 break;
528 }
529 }
530 }
531
532 if (mode == NULL)
533 return 0;
534
535 for (i = 0; i < (int) sizeof(scan_ie); i++) {
536 rate_ie = wpa_scan_get_ie(bss, scan_ie[i]);
537 if (rate_ie == NULL)
538 continue;
539
540 for (j = 2; j < rate_ie[1] + 2; j++) {
541 int flagged = !!(rate_ie[j] & 0x80);
542 int r = (rate_ie[j] & 0x7f) * 5;
543
544 /*
545 * IEEE Std 802.11n-2009 7.3.2.2:
546 * The new BSS Membership selector value is encoded
547 * like a legacy basic rate, but it is not a rate and
548 * only indicates if the BSS members are required to
549 * support the mandatory features of Clause 20 [HT PHY]
550 * in order to join the BSS.
551 */
552 if (flagged && ((rate_ie[j] & 0x7f) ==
553 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
554 if (!ht_supported(mode)) {
555 wpa_dbg(wpa_s, MSG_DEBUG,
556 " hardware does not support "
557 "HT PHY");
558 return 0;
559 }
560 continue;
561 }
562
563 if (!flagged)
564 continue;
565
566 /* check for legacy basic rates */
567 for (k = 0; k < mode->num_rates; k++) {
568 if (mode->rates[k] == r)
569 break;
570 }
571 if (k == mode->num_rates) {
572 /*
573 * IEEE Std 802.11-2007 7.3.2.2 demands that in
574 * order to join a BSS all required rates
575 * have to be supported by the hardware.
576 */
577 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does "
578 "not support required rate %d.%d Mbps",
579 r / 10, r % 10);
580 return 0;
581 }
582 }
583 }
584
585 return 1;
586 }
587
588
589 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
590 int i, struct wpa_scan_res *bss,
591 struct wpa_ssid *group)
592 {
593 const u8 *ssid_;
594 u8 wpa_ie_len, rsn_ie_len, ssid_len;
595 int wpa;
596 struct wpa_blacklist *e;
597 const u8 *ie;
598 struct wpa_ssid *ssid;
599
600 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
601 ssid_ = ie ? ie + 2 : (u8 *) "";
602 ssid_len = ie ? ie[1] : 0;
603
604 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
605 wpa_ie_len = ie ? ie[1] : 0;
606
607 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
608 rsn_ie_len = ie ? ie[1] : 0;
609
610 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
611 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
612 i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len),
613 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
614 wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
615
616 e = wpa_blacklist_get(wpa_s, bss->bssid);
617 if (e) {
618 int limit = 1;
619 if (wpa_supplicant_enabled_networks(wpa_s->conf) == 1) {
620 /*
621 * When only a single network is enabled, we can
622 * trigger blacklisting on the first failure. This
623 * should not be done with multiple enabled networks to
624 * avoid getting forced to move into a worse ESS on
625 * single error if there are no other BSSes of the
626 * current ESS.
627 */
628 limit = 0;
629 }
630 if (e->count > limit) {
631 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
632 "(count=%d limit=%d)", e->count, limit);
633 return NULL;
634 }
635 }
636
637 if (ssid_len == 0) {
638 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
639 return NULL;
640 }
641
642 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
643
644 for (ssid = group; ssid; ssid = ssid->pnext) {
645 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
646
647 if (ssid->disabled) {
648 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
649 continue;
650 }
651
652 #ifdef CONFIG_WPS
653 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
654 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
655 "(WPS)");
656 continue;
657 }
658
659 if (wpa && ssid->ssid_len == 0 &&
660 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
661 check_ssid = 0;
662
663 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
664 /* Only allow wildcard SSID match if an AP
665 * advertises active WPS operation that matches
666 * with our mode. */
667 check_ssid = 1;
668 if (ssid->ssid_len == 0 &&
669 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
670 check_ssid = 0;
671 }
672 #endif /* CONFIG_WPS */
673
674 if (ssid->bssid_set && ssid->ssid_len == 0 &&
675 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
676 check_ssid = 0;
677
678 if (check_ssid &&
679 (ssid_len != ssid->ssid_len ||
680 os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
681 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
682 continue;
683 }
684
685 if (ssid->bssid_set &&
686 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
687 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
688 continue;
689 }
690
691 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
692 continue;
693
694 if (!wpa &&
695 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
696 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
697 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
698 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
699 "not allowed");
700 continue;
701 }
702
703 if (!wpa_supplicant_match_privacy(bss, ssid)) {
704 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
705 "mismatch");
706 continue;
707 }
708
709 if (bss->caps & IEEE80211_CAP_IBSS) {
710 wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) "
711 "network");
712 continue;
713 }
714
715 if (!freq_allowed(ssid->freq_list, bss->freq)) {
716 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
717 "allowed");
718 continue;
719 }
720
721 if (!rate_match(wpa_s, bss)) {
722 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
723 "not match");
724 continue;
725 }
726
727 #ifdef CONFIG_P2P
728 /*
729 * TODO: skip the AP if its P2P IE has Group Formation
730 * bit set in the P2P Group Capability Bitmap and we
731 * are not in Group Formation with that device.
732 */
733 #endif /* CONFIG_P2P */
734
735 /* Matching configuration found */
736 return ssid;
737 }
738
739 /* No matching configuration found */
740 return NULL;
741 }
742
743
744 static struct wpa_bss *
745 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
746 struct wpa_scan_results *scan_res,
747 struct wpa_ssid *group,
748 struct wpa_ssid **selected_ssid)
749 {
750 size_t i;
751
752 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
753 group->priority);
754
755 for (i = 0; i < scan_res->num; i++) {
756 struct wpa_scan_res *bss = scan_res->res[i];
757 const u8 *ie, *ssid;
758 u8 ssid_len;
759
760 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
761 if (!*selected_ssid)
762 continue;
763
764 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
765 ssid = ie ? ie + 2 : (u8 *) "";
766 ssid_len = ie ? ie[1] : 0;
767
768 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
769 " ssid='%s'",
770 MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len));
771 return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len);
772 }
773
774 return NULL;
775 }
776
777
778 static struct wpa_bss *
779 wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
780 struct wpa_scan_results *scan_res,
781 struct wpa_ssid **selected_ssid)
782 {
783 struct wpa_bss *selected = NULL;
784 int prio;
785
786 while (selected == NULL) {
787 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
788 selected = wpa_supplicant_select_bss(
789 wpa_s, scan_res, wpa_s->conf->pssid[prio],
790 selected_ssid);
791 if (selected)
792 break;
793 }
794
795 if (selected == NULL && wpa_s->blacklist) {
796 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
797 "blacklist and try again");
798 wpa_blacklist_clear(wpa_s);
799 wpa_s->blacklist_cleared++;
800 } else if (selected == NULL)
801 break;
802 }
803
804 return selected;
805 }
806
807
808 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
809 int timeout_sec, int timeout_usec)
810 {
811 if (!wpa_supplicant_enabled_networks(wpa_s->conf)) {
812 /*
813 * No networks are enabled; short-circuit request so
814 * we don't wait timeout seconds before transitioning
815 * to INACTIVE state.
816 */
817 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
818 return;
819 }
820 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
821 }
822
823
824 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
825 struct wpa_bss *selected,
826 struct wpa_ssid *ssid)
827 {
828 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
829 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
830 "PBC session overlap");
831 #ifdef CONFIG_P2P
832 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
833 return -1;
834 #endif /* CONFIG_P2P */
835
836 #ifdef CONFIG_WPS
837 wpas_wps_cancel(wpa_s);
838 #endif /* CONFIG_WPS */
839 return -1;
840 }
841
842 /*
843 * Do not trigger new association unless the BSSID has changed or if
844 * reassociation is requested. If we are in process of associating with
845 * the selected BSSID, do not trigger new attempt.
846 */
847 if (wpa_s->reassociate ||
848 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
849 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
850 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
851 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
852 0))) {
853 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
854 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
855 return 0;
856 }
857 wpa_msg(wpa_s, MSG_DEBUG, "Request association: "
858 "reassociate: %d selected: "MACSTR " bssid: " MACSTR
859 " pending: " MACSTR " wpa_state: %s",
860 wpa_s->reassociate, MAC2STR(selected->bssid),
861 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
862 wpa_supplicant_state_txt(wpa_s->wpa_state));
863 wpa_supplicant_associate(wpa_s, selected, ssid);
864 } else {
865 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the "
866 "selected AP");
867 }
868
869 return 0;
870 }
871
872
873 static struct wpa_ssid *
874 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
875 {
876 int prio;
877 struct wpa_ssid *ssid;
878
879 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
880 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
881 {
882 if (ssid->disabled)
883 continue;
884 if (ssid->mode == IEEE80211_MODE_IBSS ||
885 ssid->mode == IEEE80211_MODE_AP)
886 return ssid;
887 }
888 }
889 return NULL;
890 }
891
892
893 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
894 * on BSS added and BSS changed events */
895 static void wpa_supplicant_rsn_preauth_scan_results(
896 struct wpa_supplicant *wpa_s)
897 {
898 struct wpa_bss *bss;
899
900 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
901 return;
902
903 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
904 const u8 *ssid, *rsn;
905
906 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
907 if (ssid == NULL)
908 continue;
909
910 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
911 if (rsn == NULL)
912 continue;
913
914 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
915 }
916
917 }
918
919
920 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
921 struct wpa_bss *selected,
922 struct wpa_ssid *ssid,
923 struct wpa_scan_results *scan_res)
924 {
925 size_t i;
926 struct wpa_scan_res *current_bss = NULL;
927 int min_diff;
928
929 if (wpa_s->reassociate)
930 return 1; /* explicit request to reassociate */
931 if (wpa_s->wpa_state < WPA_ASSOCIATED)
932 return 1; /* we are not associated; continue */
933 if (wpa_s->current_ssid == NULL)
934 return 1; /* unknown current SSID */
935 if (wpa_s->current_ssid != ssid)
936 return 1; /* different network block */
937
938 if (wpas_driver_bss_selection(wpa_s))
939 return 0; /* Driver-based roaming */
940
941 for (i = 0; i < scan_res->num; i++) {
942 struct wpa_scan_res *res = scan_res->res[i];
943 const u8 *ie;
944 if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0)
945 continue;
946
947 ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
948 if (ie == NULL)
949 continue;
950 if (ie[1] != wpa_s->current_ssid->ssid_len ||
951 os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0)
952 continue;
953 current_bss = res;
954 break;
955 }
956
957 if (!current_bss)
958 return 1; /* current BSS not seen in scan results */
959
960 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
961 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
962 MAC2STR(current_bss->bssid), current_bss->level);
963 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
964 MAC2STR(selected->bssid), selected->level);
965
966 if (wpa_s->current_ssid->bssid_set &&
967 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
968 0) {
969 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
970 "has preferred BSSID");
971 return 1;
972 }
973
974 min_diff = 2;
975 if (current_bss->level < 0) {
976 if (current_bss->level < -85)
977 min_diff = 1;
978 else if (current_bss->level < -80)
979 min_diff = 2;
980 else if (current_bss->level < -75)
981 min_diff = 3;
982 else if (current_bss->level < -70)
983 min_diff = 4;
984 else
985 min_diff = 5;
986 }
987 if (abs(current_bss->level - selected->level) < min_diff) {
988 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
989 "in signal level");
990 return 0;
991 }
992
993 return 1;
994 }
995
996 /* Return < 0 if no scan results could be fetched. */
997 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
998 union wpa_event_data *data)
999 {
1000 struct wpa_bss *selected;
1001 struct wpa_ssid *ssid = NULL;
1002 struct wpa_scan_results *scan_res;
1003 int ap = 0;
1004
1005 #ifdef CONFIG_AP
1006 if (wpa_s->ap_iface)
1007 ap = 1;
1008 #endif /* CONFIG_AP */
1009
1010 wpa_supplicant_notify_scanning(wpa_s, 0);
1011
1012 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1013 data ? &data->scan_info :
1014 NULL, 1);
1015 if (scan_res == NULL) {
1016 if (wpa_s->conf->ap_scan == 2 || ap)
1017 return -1;
1018 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1019 "scanning again");
1020 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1021 return -1;
1022 }
1023
1024 #ifndef CONFIG_NO_RANDOM_POOL
1025 size_t i, num;
1026 num = scan_res->num;
1027 if (num > 10)
1028 num = 10;
1029 for (i = 0; i < num; i++) {
1030 u8 buf[5];
1031 struct wpa_scan_res *res = scan_res->res[i];
1032 buf[0] = res->bssid[5];
1033 buf[1] = res->qual & 0xff;
1034 buf[2] = res->noise & 0xff;
1035 buf[3] = res->level & 0xff;
1036 buf[4] = res->tsf & 0xff;
1037 random_add_randomness(buf, sizeof(buf));
1038 }
1039 #endif /* CONFIG_NO_RANDOM_POOL */
1040
1041 if (wpa_s->scan_res_handler) {
1042 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1043 struct wpa_scan_results *scan_res);
1044
1045 scan_res_handler = wpa_s->scan_res_handler;
1046 wpa_s->scan_res_handler = NULL;
1047 scan_res_handler(wpa_s, scan_res);
1048
1049 wpa_scan_results_free(scan_res);
1050 return 0;
1051 }
1052
1053 if (ap) {
1054 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1055 #ifdef CONFIG_AP
1056 if (wpa_s->ap_iface->scan_cb)
1057 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1058 #endif /* CONFIG_AP */
1059 wpa_scan_results_free(scan_res);
1060 return 0;
1061 }
1062
1063 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
1064 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1065 wpas_notify_scan_results(wpa_s);
1066
1067 wpas_notify_scan_done(wpa_s, 1);
1068
1069 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
1070 wpa_scan_results_free(scan_res);
1071 return 0;
1072 }
1073
1074 if (wpa_s->disconnected) {
1075 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1076 wpa_scan_results_free(scan_res);
1077 return 0;
1078 }
1079
1080 if (!wpas_driver_bss_selection(wpa_s) &&
1081 bgscan_notify_scan(wpa_s, scan_res) == 1) {
1082 wpa_scan_results_free(scan_res);
1083 return 0;
1084 }
1085
1086 selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
1087
1088 if (selected) {
1089 int skip;
1090 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid,
1091 scan_res);
1092 wpa_scan_results_free(scan_res);
1093 if (skip)
1094 return 0;
1095
1096 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1097 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1098 return -1;
1099 }
1100 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1101 } else {
1102 wpa_scan_results_free(scan_res);
1103 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1104 ssid = wpa_supplicant_pick_new_network(wpa_s);
1105 if (ssid) {
1106 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1107 wpa_supplicant_associate(wpa_s, NULL, ssid);
1108 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1109 } else {
1110 int timeout_sec = wpa_s->scan_interval;
1111 int timeout_usec = 0;
1112 #ifdef CONFIG_P2P
1113 if (wpa_s->p2p_in_provisioning) {
1114 /*
1115 * Use shorter wait during P2P Provisioning
1116 * state to speed up group formation.
1117 */
1118 timeout_sec = 0;
1119 timeout_usec = 250000;
1120 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1121 timeout_usec);
1122 return 0;
1123 }
1124 #endif /* CONFIG_P2P */
1125 if (wpa_supplicant_req_sched_scan(wpa_s))
1126 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1127 timeout_usec);
1128 }
1129 }
1130 return 0;
1131 }
1132
1133
1134 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1135 union wpa_event_data *data)
1136 {
1137 const char *rn, *rn2;
1138 struct wpa_supplicant *ifs;
1139
1140 if (_wpa_supplicant_event_scan_results(wpa_s, data) < 0) {
1141 /*
1142 * If no scan results could be fetched, then no need to
1143 * notify those interfaces that did not actually request
1144 * this scan.
1145 */
1146 return;
1147 }
1148
1149 /*
1150 * Check other interfaces to see if they have the same radio-name. If
1151 * so, they get updated with this same scan info.
1152 */
1153 if (!wpa_s->driver->get_radio_name)
1154 return;
1155
1156 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
1157 if (rn == NULL || rn[0] == '\0')
1158 return;
1159
1160 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces "
1161 "sharing same radio (%s) in event_scan_results", rn);
1162
1163 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
1164 if (ifs == wpa_s || !ifs->driver->get_radio_name)
1165 continue;
1166
1167 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
1168 if (rn2 && os_strcmp(rn, rn2) == 0) {
1169 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1170 "sibling", ifs->ifname);
1171 _wpa_supplicant_event_scan_results(ifs, data);
1172 }
1173 }
1174 }
1175
1176 #endif /* CONFIG_NO_SCAN_PROCESSING */
1177
1178
1179 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1180 union wpa_event_data *data)
1181 {
1182 int l, len, found = 0, wpa_found, rsn_found;
1183 const u8 *p;
1184
1185 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1186 if (data->assoc_info.req_ies)
1187 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1188 data->assoc_info.req_ies_len);
1189 if (data->assoc_info.resp_ies) {
1190 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1191 data->assoc_info.resp_ies_len);
1192 #ifdef CONFIG_TDLS
1193 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1194 data->assoc_info.resp_ies_len);
1195 #endif /* CONFIG_TDLS */
1196 }
1197 if (data->assoc_info.beacon_ies)
1198 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1199 data->assoc_info.beacon_ies,
1200 data->assoc_info.beacon_ies_len);
1201 if (data->assoc_info.freq)
1202 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1203 data->assoc_info.freq);
1204
1205 p = data->assoc_info.req_ies;
1206 l = data->assoc_info.req_ies_len;
1207
1208 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1209 while (p && l >= 2) {
1210 len = p[1] + 2;
1211 if (len > l) {
1212 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1213 p, l);
1214 break;
1215 }
1216 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1217 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1218 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1219 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1220 break;
1221 found = 1;
1222 wpa_find_assoc_pmkid(wpa_s);
1223 break;
1224 }
1225 l -= len;
1226 p += len;
1227 }
1228 if (!found && data->assoc_info.req_ies)
1229 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1230
1231 #ifdef CONFIG_IEEE80211R
1232 #ifdef CONFIG_SME
1233 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1234 u8 bssid[ETH_ALEN];
1235 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1236 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1237 data->assoc_info.resp_ies,
1238 data->assoc_info.resp_ies_len,
1239 bssid) < 0) {
1240 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1241 "Reassociation Response failed");
1242 wpa_supplicant_deauthenticate(
1243 wpa_s, WLAN_REASON_INVALID_IE);
1244 return -1;
1245 }
1246 }
1247
1248 p = data->assoc_info.resp_ies;
1249 l = data->assoc_info.resp_ies_len;
1250
1251 #ifdef CONFIG_WPS_STRICT
1252 if (p && wpa_s->current_ssid &&
1253 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1254 struct wpabuf *wps;
1255 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1256 if (wps == NULL) {
1257 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1258 "include WPS IE in (Re)Association Response");
1259 return -1;
1260 }
1261
1262 if (wps_validate_assoc_resp(wps) < 0) {
1263 wpabuf_free(wps);
1264 wpa_supplicant_deauthenticate(
1265 wpa_s, WLAN_REASON_INVALID_IE);
1266 return -1;
1267 }
1268 wpabuf_free(wps);
1269 }
1270 #endif /* CONFIG_WPS_STRICT */
1271
1272 /* Go through the IEs and make a copy of the MDIE, if present. */
1273 while (p && l >= 2) {
1274 len = p[1] + 2;
1275 if (len > l) {
1276 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1277 p, l);
1278 break;
1279 }
1280 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1281 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1282 wpa_s->sme.ft_used = 1;
1283 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1284 MOBILITY_DOMAIN_ID_LEN);
1285 break;
1286 }
1287 l -= len;
1288 p += len;
1289 }
1290 #endif /* CONFIG_SME */
1291
1292 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1293 data->assoc_info.resp_ies_len);
1294 #endif /* CONFIG_IEEE80211R */
1295
1296 /* WPA/RSN IE from Beacon/ProbeResp */
1297 p = data->assoc_info.beacon_ies;
1298 l = data->assoc_info.beacon_ies_len;
1299
1300 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1301 */
1302 wpa_found = rsn_found = 0;
1303 while (p && l >= 2) {
1304 len = p[1] + 2;
1305 if (len > l) {
1306 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1307 p, l);
1308 break;
1309 }
1310 if (!wpa_found &&
1311 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1312 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1313 wpa_found = 1;
1314 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1315 }
1316
1317 if (!rsn_found &&
1318 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1319 rsn_found = 1;
1320 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1321 }
1322
1323 l -= len;
1324 p += len;
1325 }
1326
1327 if (!wpa_found && data->assoc_info.beacon_ies)
1328 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1329 if (!rsn_found && data->assoc_info.beacon_ies)
1330 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1331 if (wpa_found || rsn_found)
1332 wpa_s->ap_ies_from_associnfo = 1;
1333
1334 if (wpa_s->assoc_freq && data->assoc_info.freq &&
1335 wpa_s->assoc_freq != data->assoc_info.freq) {
1336 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1337 "%u to %u MHz",
1338 wpa_s->assoc_freq, data->assoc_info.freq);
1339 wpa_supplicant_update_scan_results(wpa_s);
1340 }
1341
1342 wpa_s->assoc_freq = data->assoc_info.freq;
1343
1344 return 0;
1345 }
1346
1347
1348 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1349 union wpa_event_data *data)
1350 {
1351 u8 bssid[ETH_ALEN];
1352 int ft_completed;
1353 int bssid_changed;
1354 struct wpa_driver_capa capa;
1355
1356 #ifdef CONFIG_AP
1357 if (wpa_s->ap_iface) {
1358 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1359 data->assoc_info.addr,
1360 data->assoc_info.req_ies,
1361 data->assoc_info.req_ies_len,
1362 data->assoc_info.reassoc);
1363 return;
1364 }
1365 #endif /* CONFIG_AP */
1366
1367 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1368 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1369 return;
1370
1371 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
1372 if (wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
1373 os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
1374 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1375 MACSTR, MAC2STR(bssid));
1376 random_add_randomness(bssid, ETH_ALEN);
1377 bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN);
1378 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1379 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1380 if (bssid_changed)
1381 wpas_notify_bssid_changed(wpa_s);
1382
1383 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1384 wpa_clear_keys(wpa_s, bssid);
1385 }
1386 if (wpa_supplicant_select_config(wpa_s) < 0) {
1387 wpa_supplicant_disassociate(
1388 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1389 return;
1390 }
1391 if (wpa_s->current_ssid) {
1392 struct wpa_bss *bss = NULL;
1393 struct wpa_ssid *ssid = wpa_s->current_ssid;
1394 if (ssid->ssid_len > 0)
1395 bss = wpa_bss_get(wpa_s, bssid,
1396 ssid->ssid, ssid->ssid_len);
1397 if (!bss)
1398 bss = wpa_bss_get_bssid(wpa_s, bssid);
1399 if (bss)
1400 wpa_s->current_bss = bss;
1401 }
1402 }
1403
1404 #ifdef CONFIG_SME
1405 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1406 wpa_s->sme.prev_bssid_set = 1;
1407 #endif /* CONFIG_SME */
1408
1409 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1410 if (wpa_s->current_ssid) {
1411 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1412 * initialized before association, but for other modes,
1413 * initialize PC/SC here, if the current configuration needs
1414 * smartcard or SIM/USIM. */
1415 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1416 }
1417 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1418 if (wpa_s->l2)
1419 l2_packet_notify_auth_start(wpa_s->l2);
1420
1421 /*
1422 * Set portEnabled first to FALSE in order to get EAP state machine out
1423 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1424 * state machine may transit to AUTHENTICATING state based on obsolete
1425 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1426 * AUTHENTICATED without ever giving chance to EAP state machine to
1427 * reset the state.
1428 */
1429 if (!ft_completed) {
1430 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1431 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1432 }
1433 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1434 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1435 /* 802.1X::portControl = Auto */
1436 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1437 wpa_s->eapol_received = 0;
1438 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1439 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1440 (wpa_s->current_ssid &&
1441 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1442 wpa_supplicant_cancel_auth_timeout(wpa_s);
1443 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1444 } else if (!ft_completed) {
1445 /* Timeout for receiving the first EAPOL packet */
1446 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1447 }
1448 wpa_supplicant_cancel_scan(wpa_s);
1449
1450 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1451 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1452 /*
1453 * We are done; the driver will take care of RSN 4-way
1454 * handshake.
1455 */
1456 wpa_supplicant_cancel_auth_timeout(wpa_s);
1457 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1458 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1459 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1460 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1461 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1462 /*
1463 * The driver will take care of RSN 4-way handshake, so we need
1464 * to allow EAPOL supplicant to complete its work without
1465 * waiting for WPA supplicant.
1466 */
1467 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1468 } else if (ft_completed) {
1469 /*
1470 * FT protocol completed - make sure EAPOL state machine ends
1471 * up in authenticated.
1472 */
1473 wpa_supplicant_cancel_auth_timeout(wpa_s);
1474 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1475 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1476 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1477 }
1478
1479 if (wpa_s->pending_eapol_rx) {
1480 struct os_time now, age;
1481 os_get_time(&now);
1482 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1483 if (age.sec == 0 && age.usec < 100000 &&
1484 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1485 0) {
1486 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
1487 "frame that was received just before "
1488 "association notification");
1489 wpa_supplicant_rx_eapol(
1490 wpa_s, wpa_s->pending_eapol_rx_src,
1491 wpabuf_head(wpa_s->pending_eapol_rx),
1492 wpabuf_len(wpa_s->pending_eapol_rx));
1493 }
1494 wpabuf_free(wpa_s->pending_eapol_rx);
1495 wpa_s->pending_eapol_rx = NULL;
1496 }
1497
1498 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1499 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
1500 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1501 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
1502 /* Set static WEP keys again */
1503 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
1504 }
1505
1506 #ifdef CONFIG_IBSS_RSN
1507 if (wpa_s->current_ssid &&
1508 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
1509 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
1510 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
1511 wpa_s->ibss_rsn == NULL) {
1512 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
1513 if (!wpa_s->ibss_rsn) {
1514 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
1515 wpa_supplicant_deauthenticate(
1516 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1517 return;
1518 }
1519
1520 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
1521 }
1522 #endif /* CONFIG_IBSS_RSN */
1523 }
1524
1525
1526 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
1527 u16 reason_code)
1528 {
1529 const u8 *bssid;
1530 int authenticating;
1531 u8 prev_pending_bssid[ETH_ALEN];
1532
1533 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
1534 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
1535
1536 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1537 /*
1538 * At least Host AP driver and a Prism3 card seemed to be
1539 * generating streams of disconnected events when configuring
1540 * IBSS for WPA-None. Ignore them for now.
1541 */
1542 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
1543 "IBSS/WPA-None mode");
1544 return;
1545 }
1546
1547 if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
1548 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1549 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
1550 "pre-shared key may be incorrect");
1551 }
1552 if (!wpa_s->auto_reconnect_disabled ||
1553 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
1554 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Auto connect enabled: try to "
1555 "reconnect (wps=%d)",
1556 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS);
1557 if (wpa_s->wpa_state >= WPA_ASSOCIATING)
1558 wpa_supplicant_req_scan(wpa_s, 0, 100000);
1559 } else {
1560 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Auto connect disabled: do not "
1561 "try to re-connect");
1562 wpa_s->reassociate = 0;
1563 wpa_s->disconnected = 1;
1564 }
1565 bssid = wpa_s->bssid;
1566 if (is_zero_ether_addr(bssid))
1567 bssid = wpa_s->pending_bssid;
1568 wpas_connection_failed(wpa_s, bssid);
1569 wpa_sm_notify_disassoc(wpa_s->wpa);
1570 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
1571 " reason=%d",
1572 MAC2STR(bssid), reason_code);
1573 if (wpa_supplicant_dynamic_keys(wpa_s)) {
1574 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
1575 wpa_s->keys_cleared = 0;
1576 wpa_clear_keys(wpa_s, wpa_s->bssid);
1577 }
1578 wpa_supplicant_mark_disassoc(wpa_s);
1579
1580 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1581 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
1582 }
1583
1584
1585 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1586 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
1587 {
1588 struct wpa_supplicant *wpa_s = eloop_ctx;
1589
1590 if (!wpa_s->pending_mic_error_report)
1591 return;
1592
1593 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
1594 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
1595 wpa_s->pending_mic_error_report = 0;
1596 }
1597 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1598
1599
1600 static void
1601 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
1602 union wpa_event_data *data)
1603 {
1604 int pairwise;
1605 struct os_time t;
1606
1607 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
1608 pairwise = (data && data->michael_mic_failure.unicast);
1609 os_get_time(&t);
1610 if ((wpa_s->last_michael_mic_error &&
1611 t.sec - wpa_s->last_michael_mic_error <= 60) ||
1612 wpa_s->pending_mic_error_report) {
1613 if (wpa_s->pending_mic_error_report) {
1614 /*
1615 * Send the pending MIC error report immediately since
1616 * we are going to start countermeasures and AP better
1617 * do the same.
1618 */
1619 wpa_sm_key_request(wpa_s->wpa, 1,
1620 wpa_s->pending_mic_error_pairwise);
1621 }
1622
1623 /* Send the new MIC error report immediately since we are going
1624 * to start countermeasures and AP better do the same.
1625 */
1626 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1627
1628 /* initialize countermeasures */
1629 wpa_s->countermeasures = 1;
1630 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
1631
1632 /*
1633 * Need to wait for completion of request frame. We do not get
1634 * any callback for the message completion, so just wait a
1635 * short while and hope for the best. */
1636 os_sleep(0, 10000);
1637
1638 wpa_drv_set_countermeasures(wpa_s, 1);
1639 wpa_supplicant_deauthenticate(wpa_s,
1640 WLAN_REASON_MICHAEL_MIC_FAILURE);
1641 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
1642 wpa_s, NULL);
1643 eloop_register_timeout(60, 0,
1644 wpa_supplicant_stop_countermeasures,
1645 wpa_s, NULL);
1646 /* TODO: mark the AP rejected for 60 second. STA is
1647 * allowed to associate with another AP.. */
1648 } else {
1649 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1650 if (wpa_s->mic_errors_seen) {
1651 /*
1652 * Reduce the effectiveness of Michael MIC error
1653 * reports as a means for attacking against TKIP if
1654 * more than one MIC failure is noticed with the same
1655 * PTK. We delay the transmission of the reports by a
1656 * random time between 0 and 60 seconds in order to
1657 * force the attacker wait 60 seconds before getting
1658 * the information on whether a frame resulted in a MIC
1659 * failure.
1660 */
1661 u8 rval[4];
1662 int sec;
1663
1664 if (os_get_random(rval, sizeof(rval)) < 0)
1665 sec = os_random() % 60;
1666 else
1667 sec = WPA_GET_BE32(rval) % 60;
1668 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
1669 "report %d seconds", sec);
1670 wpa_s->pending_mic_error_report = 1;
1671 wpa_s->pending_mic_error_pairwise = pairwise;
1672 eloop_cancel_timeout(
1673 wpa_supplicant_delayed_mic_error_report,
1674 wpa_s, NULL);
1675 eloop_register_timeout(
1676 sec, os_random() % 1000000,
1677 wpa_supplicant_delayed_mic_error_report,
1678 wpa_s, NULL);
1679 } else {
1680 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1681 }
1682 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1683 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1684 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1685 }
1686 wpa_s->last_michael_mic_error = t.sec;
1687 wpa_s->mic_errors_seen++;
1688 }
1689
1690
1691 #ifdef CONFIG_TERMINATE_ONLASTIF
1692 static int any_interfaces(struct wpa_supplicant *head)
1693 {
1694 struct wpa_supplicant *wpa_s;
1695
1696 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
1697 if (!wpa_s->interface_removed)
1698 return 1;
1699 return 0;
1700 }
1701 #endif /* CONFIG_TERMINATE_ONLASTIF */
1702
1703
1704 static void
1705 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
1706 union wpa_event_data *data)
1707 {
1708 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
1709 return;
1710
1711 switch (data->interface_status.ievent) {
1712 case EVENT_INTERFACE_ADDED:
1713 if (!wpa_s->interface_removed)
1714 break;
1715 wpa_s->interface_removed = 0;
1716 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
1717 if (wpa_supplicant_driver_init(wpa_s) < 0) {
1718 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
1719 "driver after interface was added");
1720 }
1721 break;
1722 case EVENT_INTERFACE_REMOVED:
1723 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
1724 wpa_s->interface_removed = 1;
1725 wpa_supplicant_mark_disassoc(wpa_s);
1726 l2_packet_deinit(wpa_s->l2);
1727 wpa_s->l2 = NULL;
1728 #ifdef CONFIG_IBSS_RSN
1729 ibss_rsn_deinit(wpa_s->ibss_rsn);
1730 wpa_s->ibss_rsn = NULL;
1731 #endif /* CONFIG_IBSS_RSN */
1732 #ifdef CONFIG_TERMINATE_ONLASTIF
1733 /* check if last interface */
1734 if (!any_interfaces(wpa_s->global->ifaces))
1735 eloop_terminate();
1736 #endif /* CONFIG_TERMINATE_ONLASTIF */
1737 break;
1738 }
1739 }
1740
1741
1742 #ifdef CONFIG_PEERKEY
1743 static void
1744 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
1745 union wpa_event_data *data)
1746 {
1747 if (data == NULL)
1748 return;
1749 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
1750 }
1751 #endif /* CONFIG_PEERKEY */
1752
1753
1754 #ifdef CONFIG_TDLS
1755 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
1756 union wpa_event_data *data)
1757 {
1758 if (data == NULL)
1759 return;
1760 switch (data->tdls.oper) {
1761 case TDLS_REQUEST_SETUP:
1762 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
1763 break;
1764 case TDLS_REQUEST_TEARDOWN:
1765 wpa_tdls_send_teardown(wpa_s->wpa, data->tdls.peer,
1766 data->tdls.reason_code);
1767 break;
1768 }
1769 }
1770 #endif /* CONFIG_TDLS */
1771
1772
1773 #ifdef CONFIG_IEEE80211R
1774 static void
1775 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
1776 union wpa_event_data *data)
1777 {
1778 if (data == NULL)
1779 return;
1780
1781 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
1782 data->ft_ies.ies_len,
1783 data->ft_ies.ft_action,
1784 data->ft_ies.target_ap,
1785 data->ft_ies.ric_ies,
1786 data->ft_ies.ric_ies_len) < 0) {
1787 /* TODO: prevent MLME/driver from trying to associate? */
1788 }
1789 }
1790 #endif /* CONFIG_IEEE80211R */
1791
1792
1793 #ifdef CONFIG_IBSS_RSN
1794 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
1795 union wpa_event_data *data)
1796 {
1797 struct wpa_ssid *ssid;
1798 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1799 return;
1800 if (data == NULL)
1801 return;
1802 ssid = wpa_s->current_ssid;
1803 if (ssid == NULL)
1804 return;
1805 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
1806 return;
1807
1808 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
1809 }
1810 #endif /* CONFIG_IBSS_RSN */
1811
1812
1813 #ifdef CONFIG_IEEE80211R
1814 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
1815 size_t len)
1816 {
1817 const u8 *sta_addr, *target_ap_addr;
1818 u16 status;
1819
1820 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
1821 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1822 return; /* only SME case supported for now */
1823 if (len < 1 + 2 * ETH_ALEN + 2)
1824 return;
1825 if (data[0] != 2)
1826 return; /* Only FT Action Response is supported for now */
1827 sta_addr = data + 1;
1828 target_ap_addr = data + 1 + ETH_ALEN;
1829 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
1830 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
1831 MACSTR " TargetAP " MACSTR " status %u",
1832 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
1833
1834 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
1835 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
1836 " in FT Action Response", MAC2STR(sta_addr));
1837 return;
1838 }
1839
1840 if (status) {
1841 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
1842 "failure (status code %d)", status);
1843 /* TODO: report error to FT code(?) */
1844 return;
1845 }
1846
1847 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
1848 len - (1 + 2 * ETH_ALEN + 2), 1,
1849 target_ap_addr, NULL, 0) < 0)
1850 return;
1851
1852 #ifdef CONFIG_SME
1853 {
1854 struct wpa_bss *bss;
1855 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
1856 if (bss)
1857 wpa_s->sme.freq = bss->freq;
1858 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
1859 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
1860 WLAN_AUTH_FT);
1861 }
1862 #endif /* CONFIG_SME */
1863 }
1864 #endif /* CONFIG_IEEE80211R */
1865
1866
1867 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
1868 struct unprot_deauth *e)
1869 {
1870 #ifdef CONFIG_IEEE80211W
1871 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
1872 "dropped: " MACSTR " -> " MACSTR
1873 " (reason code %u)",
1874 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
1875 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
1876 #endif /* CONFIG_IEEE80211W */
1877 }
1878
1879
1880 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
1881 struct unprot_disassoc *e)
1882 {
1883 #ifdef CONFIG_IEEE80211W
1884 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
1885 "dropped: " MACSTR " -> " MACSTR
1886 " (reason code %u)",
1887 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
1888 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
1889 #endif /* CONFIG_IEEE80211W */
1890 }
1891
1892
1893 static void wnm_action_rx(struct wpa_supplicant *wpa_s, struct rx_action *rx)
1894 {
1895 u8 action, mode;
1896 const u8 *pos, *end;
1897
1898 if (rx->data == NULL || rx->len == 0)
1899 return;
1900
1901 pos = rx->data;
1902 end = pos + rx->len;
1903 action = *pos++;
1904
1905 wpa_printf(MSG_DEBUG, "WNM: RX action %u from " MACSTR,
1906 action, MAC2STR(rx->sa));
1907 switch (action) {
1908 case WNM_BSS_TRANS_MGMT_REQ:
1909 if (pos + 5 > end)
1910 break;
1911 wpa_printf(MSG_DEBUG, "WNM: BSS Transition Management "
1912 "Request: dialog_token=%u request_mode=0x%x "
1913 "disassoc_timer=%u validity_interval=%u",
1914 pos[0], pos[1], WPA_GET_LE16(pos + 2), pos[4]);
1915 mode = pos[1];
1916 pos += 5;
1917 if (mode & 0x08)
1918 pos += 12; /* BSS Termination Duration */
1919 if (mode & 0x10) {
1920 char url[256];
1921 if (pos + 1 > end || pos + 1 + pos[0] > end) {
1922 wpa_printf(MSG_DEBUG, "WNM: Invalid BSS "
1923 "Transition Management Request "
1924 "(URL)");
1925 break;
1926 }
1927 os_memcpy(url, pos + 1, pos[0]);
1928 url[pos[0]] = '\0';
1929 wpa_msg(wpa_s, MSG_INFO, "WNM: ESS Disassociation "
1930 "Imminent - session_info_url=%s", url);
1931 }
1932 break;
1933 }
1934 }
1935
1936
1937 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
1938 union wpa_event_data *data)
1939 {
1940 struct wpa_supplicant *wpa_s = ctx;
1941 u16 reason_code = 0;
1942
1943 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
1944 event != EVENT_INTERFACE_ENABLED &&
1945 event != EVENT_INTERFACE_STATUS) {
1946 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore event %d while interface is "
1947 "disabled", event);
1948 return;
1949 }
1950
1951 wpa_dbg(wpa_s, MSG_DEBUG, "Event %d received on interface %s",
1952 event, wpa_s->ifname);
1953
1954 switch (event) {
1955 case EVENT_AUTH:
1956 sme_event_auth(wpa_s, data);
1957 break;
1958 case EVENT_ASSOC:
1959 wpa_supplicant_event_assoc(wpa_s, data);
1960 break;
1961 case EVENT_DISASSOC:
1962 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
1963 if (data) {
1964 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u",
1965 data->disassoc_info.reason_code);
1966 if (data->disassoc_info.addr)
1967 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
1968 MAC2STR(data->disassoc_info.addr));
1969 }
1970 #ifdef CONFIG_AP
1971 if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
1972 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
1973 data->disassoc_info.addr);
1974 break;
1975 }
1976 #endif /* CONFIG_AP */
1977 if (data) {
1978 reason_code = data->disassoc_info.reason_code;
1979 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
1980 data->disassoc_info.ie,
1981 data->disassoc_info.ie_len);
1982 #ifdef CONFIG_P2P
1983 wpas_p2p_disassoc_notif(
1984 wpa_s, data->disassoc_info.addr, reason_code,
1985 data->disassoc_info.ie,
1986 data->disassoc_info.ie_len);
1987 #endif /* CONFIG_P2P */
1988 }
1989 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
1990 sme_event_disassoc(wpa_s, data);
1991 /* fall through */
1992 case EVENT_DEAUTH:
1993 if (event == EVENT_DEAUTH) {
1994 wpa_dbg(wpa_s, MSG_DEBUG,
1995 "Deauthentication notification");
1996 if (data) {
1997 reason_code = data->deauth_info.reason_code;
1998 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u",
1999 data->deauth_info.reason_code);
2000 if (data->deauth_info.addr) {
2001 wpa_dbg(wpa_s, MSG_DEBUG, " * address "
2002 MACSTR,
2003 MAC2STR(data->deauth_info.
2004 addr));
2005 }
2006 wpa_hexdump(MSG_DEBUG,
2007 "Deauthentication frame IE(s)",
2008 data->deauth_info.ie,
2009 data->deauth_info.ie_len);
2010 #ifdef CONFIG_P2P
2011 wpas_p2p_deauth_notif(
2012 wpa_s, data->deauth_info.addr,
2013 reason_code,
2014 data->deauth_info.ie,
2015 data->deauth_info.ie_len);
2016 #endif /* CONFIG_P2P */
2017 }
2018 }
2019 #ifdef CONFIG_AP
2020 if (wpa_s->ap_iface && data && data->deauth_info.addr) {
2021 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2022 data->deauth_info.addr);
2023 break;
2024 }
2025 #endif /* CONFIG_AP */
2026 wpa_supplicant_event_disassoc(wpa_s, reason_code);
2027 break;
2028 case EVENT_MICHAEL_MIC_FAILURE:
2029 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
2030 break;
2031 #ifndef CONFIG_NO_SCAN_PROCESSING
2032 case EVENT_SCAN_RESULTS:
2033 wpa_supplicant_event_scan_results(wpa_s, data);
2034 break;
2035 #endif /* CONFIG_NO_SCAN_PROCESSING */
2036 case EVENT_ASSOCINFO:
2037 wpa_supplicant_event_associnfo(wpa_s, data);
2038 break;
2039 case EVENT_INTERFACE_STATUS:
2040 wpa_supplicant_event_interface_status(wpa_s, data);
2041 break;
2042 case EVENT_PMKID_CANDIDATE:
2043 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
2044 break;
2045 #ifdef CONFIG_PEERKEY
2046 case EVENT_STKSTART:
2047 wpa_supplicant_event_stkstart(wpa_s, data);
2048 break;
2049 #endif /* CONFIG_PEERKEY */
2050 #ifdef CONFIG_TDLS
2051 case EVENT_TDLS:
2052 wpa_supplicant_event_tdls(wpa_s, data);
2053 break;
2054 #endif /* CONFIG_TDLS */
2055 #ifdef CONFIG_IEEE80211R
2056 case EVENT_FT_RESPONSE:
2057 wpa_supplicant_event_ft_response(wpa_s, data);
2058 break;
2059 #endif /* CONFIG_IEEE80211R */
2060 #ifdef CONFIG_IBSS_RSN
2061 case EVENT_IBSS_RSN_START:
2062 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
2063 break;
2064 #endif /* CONFIG_IBSS_RSN */
2065 case EVENT_ASSOC_REJECT:
2066 if (data->assoc_reject.bssid)
2067 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2068 "bssid=" MACSTR " status_code=%u",
2069 MAC2STR(data->assoc_reject.bssid),
2070 data->assoc_reject.status_code);
2071 else
2072 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2073 "status_code=%u",
2074 data->assoc_reject.status_code);
2075 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2076 sme_event_assoc_reject(wpa_s, data);
2077 break;
2078 case EVENT_AUTH_TIMED_OUT:
2079 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2080 sme_event_auth_timed_out(wpa_s, data);
2081 break;
2082 case EVENT_ASSOC_TIMED_OUT:
2083 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2084 sme_event_assoc_timed_out(wpa_s, data);
2085 break;
2086 case EVENT_TX_STATUS:
2087 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
2088 " type=%d stype=%d",
2089 MAC2STR(data->tx_status.dst),
2090 data->tx_status.type, data->tx_status.stype);
2091 #ifdef CONFIG_AP
2092 if (wpa_s->ap_iface == NULL) {
2093 #ifdef CONFIG_OFFCHANNEL
2094 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2095 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
2096 offchannel_send_action_tx_status(
2097 wpa_s, data->tx_status.dst,
2098 data->tx_status.data,
2099 data->tx_status.data_len,
2100 data->tx_status.ack ?
2101 OFFCHANNEL_SEND_ACTION_SUCCESS :
2102 OFFCHANNEL_SEND_ACTION_NO_ACK);
2103 #endif /* CONFIG_OFFCHANNEL */
2104 break;
2105 }
2106 #endif /* CONFIG_AP */
2107 #ifdef CONFIG_OFFCHANNEL
2108 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
2109 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
2110 /*
2111 * Catch TX status events for Action frames we sent via group
2112 * interface in GO mode.
2113 */
2114 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2115 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
2116 os_memcmp(wpa_s->parent->pending_action_dst,
2117 data->tx_status.dst, ETH_ALEN) == 0) {
2118 offchannel_send_action_tx_status(
2119 wpa_s->parent, data->tx_status.dst,
2120 data->tx_status.data,
2121 data->tx_status.data_len,
2122 data->tx_status.ack ?
2123 OFFCHANNEL_SEND_ACTION_SUCCESS :
2124 OFFCHANNEL_SEND_ACTION_NO_ACK);
2125 break;
2126 }
2127 #endif /* CONFIG_OFFCHANNEL */
2128 #ifdef CONFIG_AP
2129 switch (data->tx_status.type) {
2130 case WLAN_FC_TYPE_MGMT:
2131 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
2132 data->tx_status.data_len,
2133 data->tx_status.stype,
2134 data->tx_status.ack);
2135 break;
2136 case WLAN_FC_TYPE_DATA:
2137 ap_tx_status(wpa_s, data->tx_status.dst,
2138 data->tx_status.data,
2139 data->tx_status.data_len,
2140 data->tx_status.ack);
2141 break;
2142 }
2143 #endif /* CONFIG_AP */
2144 break;
2145 #ifdef CONFIG_AP
2146 case EVENT_DRIVER_CLIENT_POLL_OK:
2147 ap_client_poll_ok(wpa_s, data->client_poll.addr);
2148 break;
2149 case EVENT_RX_FROM_UNKNOWN:
2150 if (wpa_s->ap_iface == NULL)
2151 break;
2152 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
2153 data->rx_from_unknown.wds);
2154 break;
2155 case EVENT_RX_MGMT:
2156 if (wpa_s->ap_iface == NULL) {
2157 #ifdef CONFIG_P2P
2158 u16 fc, stype;
2159 const struct ieee80211_mgmt *mgmt;
2160 mgmt = (const struct ieee80211_mgmt *)
2161 data->rx_mgmt.frame;
2162 fc = le_to_host16(mgmt->frame_control);
2163 stype = WLAN_FC_GET_STYPE(fc);
2164 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2165 data->rx_mgmt.frame_len > 24) {
2166 const u8 *src = mgmt->sa;
2167 const u8 *ie = mgmt->u.probe_req.variable;
2168 size_t ie_len = data->rx_mgmt.frame_len -
2169 (mgmt->u.probe_req.variable -
2170 data->rx_mgmt.frame);
2171 wpas_p2p_probe_req_rx(wpa_s, src, mgmt->da,
2172 mgmt->bssid, ie, ie_len);
2173 break;
2174 }
2175 #endif /* CONFIG_P2P */
2176 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
2177 "management frame in non-AP mode");
2178 break;
2179 }
2180 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
2181 break;
2182 #endif /* CONFIG_AP */
2183 case EVENT_RX_ACTION:
2184 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2185 " Category=%u DataLen=%d freq=%d MHz",
2186 MAC2STR(data->rx_action.sa),
2187 data->rx_action.category, (int) data->rx_action.len,
2188 data->rx_action.freq);
2189 #ifdef CONFIG_IEEE80211R
2190 if (data->rx_action.category == WLAN_ACTION_FT) {
2191 ft_rx_action(wpa_s, data->rx_action.data,
2192 data->rx_action.len);
2193 break;
2194 }
2195 #endif /* CONFIG_IEEE80211R */
2196 #ifdef CONFIG_IEEE80211W
2197 #ifdef CONFIG_SME
2198 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) {
2199 sme_sa_query_rx(wpa_s, data->rx_action.sa,
2200 data->rx_action.data,
2201 data->rx_action.len);
2202 break;
2203 }
2204 #endif /* CONFIG_SME */
2205 #endif /* CONFIG_IEEE80211W */
2206 #ifdef CONFIG_GAS
2207 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2208 gas_query_rx(wpa_s->gas, data->rx_action.da,
2209 data->rx_action.sa, data->rx_action.bssid,
2210 data->rx_action.data, data->rx_action.len,
2211 data->rx_action.freq) == 0)
2212 break;
2213 #endif /* CONFIG_GAS */
2214 if (data->rx_action.category == WLAN_ACTION_WNM) {
2215 wnm_action_rx(wpa_s, &data->rx_action);
2216 break;
2217 }
2218 #ifdef CONFIG_TDLS
2219 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2220 data->rx_action.len >= 4 &&
2221 data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
2222 wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery "
2223 "Response from " MACSTR,
2224 MAC2STR(data->rx_action.sa));
2225 break;
2226 }
2227 #endif /* CONFIG_TDLS */
2228 #ifdef CONFIG_P2P
2229 wpas_p2p_rx_action(wpa_s, data->rx_action.da,
2230 data->rx_action.sa,
2231 data->rx_action.bssid,
2232 data->rx_action.category,
2233 data->rx_action.data,
2234 data->rx_action.len, data->rx_action.freq);
2235 #endif /* CONFIG_P2P */
2236 break;
2237 case EVENT_RX_PROBE_REQ:
2238 if (data->rx_probe_req.sa == NULL ||
2239 data->rx_probe_req.ie == NULL)
2240 break;
2241 #ifdef CONFIG_AP
2242 if (wpa_s->ap_iface) {
2243 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
2244 data->rx_probe_req.sa,
2245 data->rx_probe_req.da,
2246 data->rx_probe_req.bssid,
2247 data->rx_probe_req.ie,
2248 data->rx_probe_req.ie_len);
2249 break;
2250 }
2251 #endif /* CONFIG_AP */
2252 #ifdef CONFIG_P2P
2253 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
2254 data->rx_probe_req.da,
2255 data->rx_probe_req.bssid,
2256 data->rx_probe_req.ie,
2257 data->rx_probe_req.ie_len);
2258 #endif /* CONFIG_P2P */
2259 break;
2260 case EVENT_REMAIN_ON_CHANNEL:
2261 #ifdef CONFIG_OFFCHANNEL
2262 offchannel_remain_on_channel_cb(
2263 wpa_s, data->remain_on_channel.freq,
2264 data->remain_on_channel.duration);
2265 #endif /* CONFIG_OFFCHANNEL */
2266 #ifdef CONFIG_P2P
2267 wpas_p2p_remain_on_channel_cb(
2268 wpa_s, data->remain_on_channel.freq,
2269 data->remain_on_channel.duration);
2270 #endif /* CONFIG_P2P */
2271 break;
2272 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
2273 #ifdef CONFIG_OFFCHANNEL
2274 offchannel_cancel_remain_on_channel_cb(
2275 wpa_s, data->remain_on_channel.freq);
2276 #endif /* CONFIG_OFFCHANNEL */
2277 #ifdef CONFIG_P2P
2278 wpas_p2p_cancel_remain_on_channel_cb(
2279 wpa_s, data->remain_on_channel.freq);
2280 #endif /* CONFIG_P2P */
2281 break;
2282 #ifdef CONFIG_P2P
2283 case EVENT_P2P_DEV_FOUND: {
2284 struct p2p_peer_info peer_info;
2285
2286 os_memset(&peer_info, 0, sizeof(peer_info));
2287 if (data->p2p_dev_found.dev_addr)
2288 os_memcpy(peer_info.p2p_device_addr,
2289 data->p2p_dev_found.dev_addr, ETH_ALEN);
2290 if (data->p2p_dev_found.pri_dev_type)
2291 os_memcpy(peer_info.pri_dev_type,
2292 data->p2p_dev_found.pri_dev_type,
2293 sizeof(peer_info.pri_dev_type));
2294 if (data->p2p_dev_found.dev_name)
2295 os_strlcpy(peer_info.device_name,
2296 data->p2p_dev_found.dev_name,
2297 sizeof(peer_info.device_name));
2298 peer_info.config_methods = data->p2p_dev_found.config_methods;
2299 peer_info.dev_capab = data->p2p_dev_found.dev_capab;
2300 peer_info.group_capab = data->p2p_dev_found.group_capab;
2301
2302 /*
2303 * FIX: new_device=1 is not necessarily correct. We should
2304 * maintain a P2P peer database in wpa_supplicant and update
2305 * this information based on whether the peer is truly new.
2306 */
2307 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1);
2308 break;
2309 }
2310 case EVENT_P2P_GO_NEG_REQ_RX:
2311 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src,
2312 data->p2p_go_neg_req_rx.dev_passwd_id);
2313 break;
2314 case EVENT_P2P_GO_NEG_COMPLETED:
2315 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res);
2316 break;
2317 case EVENT_P2P_PROV_DISC_REQUEST:
2318 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer,
2319 data->p2p_prov_disc_req.config_methods,
2320 data->p2p_prov_disc_req.dev_addr,
2321 data->p2p_prov_disc_req.pri_dev_type,
2322 data->p2p_prov_disc_req.dev_name,
2323 data->p2p_prov_disc_req.supp_config_methods,
2324 data->p2p_prov_disc_req.dev_capab,
2325 data->p2p_prov_disc_req.group_capab);
2326 break;
2327 case EVENT_P2P_PROV_DISC_RESPONSE:
2328 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer,
2329 data->p2p_prov_disc_resp.config_methods);
2330 break;
2331 case EVENT_P2P_SD_REQUEST:
2332 wpas_sd_request(wpa_s, data->p2p_sd_req.freq,
2333 data->p2p_sd_req.sa,
2334 data->p2p_sd_req.dialog_token,
2335 data->p2p_sd_req.update_indic,
2336 data->p2p_sd_req.tlvs,
2337 data->p2p_sd_req.tlvs_len);
2338 break;
2339 case EVENT_P2P_SD_RESPONSE:
2340 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa,
2341 data->p2p_sd_resp.update_indic,
2342 data->p2p_sd_resp.tlvs,
2343 data->p2p_sd_resp.tlvs_len);
2344 break;
2345 #endif /* CONFIG_P2P */
2346 case EVENT_EAPOL_RX:
2347 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
2348 data->eapol_rx.data,
2349 data->eapol_rx.data_len);
2350 break;
2351 case EVENT_SIGNAL_CHANGE:
2352 bgscan_notify_signal_change(
2353 wpa_s, data->signal_change.above_threshold,
2354 data->signal_change.current_signal,
2355 data->signal_change.current_noise,
2356 data->signal_change.current_txrate);
2357 break;
2358 case EVENT_INTERFACE_ENABLED:
2359 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
2360 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
2361 #ifdef CONFIG_AP
2362 if (!wpa_s->ap_iface) {
2363 wpa_supplicant_set_state(wpa_s,
2364 WPA_DISCONNECTED);
2365 wpa_supplicant_req_scan(wpa_s, 0, 0);
2366 } else
2367 wpa_supplicant_set_state(wpa_s,
2368 WPA_COMPLETED);
2369 #else /* CONFIG_AP */
2370 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2371 wpa_supplicant_req_scan(wpa_s, 0, 0);
2372 #endif /* CONFIG_AP */
2373 }
2374 break;
2375 case EVENT_INTERFACE_DISABLED:
2376 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
2377 wpa_supplicant_mark_disassoc(wpa_s);
2378 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2379 break;
2380 case EVENT_CHANNEL_LIST_CHANGED:
2381 if (wpa_s->drv_priv == NULL)
2382 break; /* Ignore event during drv initialization */
2383 #ifdef CONFIG_P2P
2384 wpas_p2p_update_channel_list(wpa_s);
2385 #endif /* CONFIG_P2P */
2386 break;
2387 case EVENT_INTERFACE_UNAVAILABLE:
2388 #ifdef CONFIG_P2P
2389 wpas_p2p_interface_unavailable(wpa_s);
2390 #endif /* CONFIG_P2P */
2391 break;
2392 case EVENT_BEST_CHANNEL:
2393 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
2394 "(%d %d %d)",
2395 data->best_chan.freq_24, data->best_chan.freq_5,
2396 data->best_chan.freq_overall);
2397 wpa_s->best_24_freq = data->best_chan.freq_24;
2398 wpa_s->best_5_freq = data->best_chan.freq_5;
2399 wpa_s->best_overall_freq = data->best_chan.freq_overall;
2400 #ifdef CONFIG_P2P
2401 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
2402 data->best_chan.freq_5,
2403 data->best_chan.freq_overall);
2404 #endif /* CONFIG_P2P */
2405 break;
2406 case EVENT_UNPROT_DEAUTH:
2407 wpa_supplicant_event_unprot_deauth(wpa_s,
2408 &data->unprot_deauth);
2409 break;
2410 case EVENT_UNPROT_DISASSOC:
2411 wpa_supplicant_event_unprot_disassoc(wpa_s,
2412 &data->unprot_disassoc);
2413 break;
2414 case EVENT_STATION_LOW_ACK:
2415 #ifdef CONFIG_AP
2416 if (wpa_s->ap_iface && data)
2417 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
2418 data->low_ack.addr);
2419 #endif /* CONFIG_AP */
2420 #ifdef CONFIG_TDLS
2421 if (data)
2422 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr);
2423 #endif /* CONFIG_TDLS */
2424 break;
2425 case EVENT_IBSS_PEER_LOST:
2426 #ifdef CONFIG_IBSS_RSN
2427 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
2428 #endif /* CONFIG_IBSS_RSN */
2429 break;
2430 case EVENT_DRIVER_GTK_REKEY:
2431 if (os_memcmp(data->driver_gtk_rekey.bssid,
2432 wpa_s->bssid, ETH_ALEN))
2433 break;
2434 if (!wpa_s->wpa)
2435 break;
2436 wpa_sm_update_replay_ctr(wpa_s->wpa,
2437 data->driver_gtk_rekey.replay_ctr);
2438 break;
2439 case EVENT_SCHED_SCAN_STOPPED:
2440 wpa_s->sched_scanning = 0;
2441 wpa_supplicant_notify_scanning(wpa_s, 0);
2442
2443 /*
2444 * If we timed out, start a new sched scan to continue
2445 * searching for more SSIDs.
2446 */
2447 if (wpa_s->sched_scan_timed_out)
2448 wpa_supplicant_req_sched_scan(wpa_s);
2449 break;
2450 case EVENT_WPS_BUTTON_PUSHED:
2451 #ifdef CONFIG_WPS
2452 wpas_wps_start_pbc(wpa_s, NULL, 0);
2453 #endif /* CONFIG_WPS */
2454 break;
2455 default:
2456 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
2457 break;
2458 }
2459 }
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