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wpa_supplicant: Check rate sets before joining BSS
[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 static void wpa_supplicant_stop_countermeasures(void *eloop_ctx,
100 void *sock_ctx)
101 {
102 struct wpa_supplicant *wpa_s = eloop_ctx;
103
104 if (wpa_s->countermeasures) {
105 wpa_s->countermeasures = 0;
106 wpa_drv_set_countermeasures(wpa_s, 0);
107 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
108 wpa_supplicant_req_scan(wpa_s, 0, 0);
109 }
110 }
111
112
113 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
114 {
115 int bssid_changed;
116
117 #ifdef CONFIG_IBSS_RSN
118 ibss_rsn_deinit(wpa_s->ibss_rsn);
119 wpa_s->ibss_rsn = NULL;
120 #endif /* CONFIG_IBSS_RSN */
121
122 #ifdef CONFIG_AP
123 wpa_supplicant_ap_deinit(wpa_s);
124 #endif /* CONFIG_AP */
125
126 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
127 return;
128
129 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
130 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
131 os_memset(wpa_s->bssid, 0, ETH_ALEN);
132 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
133 wpa_s->current_bss = NULL;
134 wpa_s->assoc_freq = 0;
135 #ifdef CONFIG_IEEE80211R
136 #ifdef CONFIG_SME
137 if (wpa_s->sme.ft_ies)
138 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
139 #endif /* CONFIG_SME */
140 #endif /* CONFIG_IEEE80211R */
141
142 if (bssid_changed)
143 wpas_notify_bssid_changed(wpa_s);
144
145 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
146 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
147 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
148 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
149 wpa_s->ap_ies_from_associnfo = 0;
150 }
151
152
153 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
154 {
155 struct wpa_ie_data ie;
156 int pmksa_set = -1;
157 size_t i;
158
159 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
160 ie.pmkid == NULL)
161 return;
162
163 for (i = 0; i < ie.num_pmkid; i++) {
164 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
165 ie.pmkid + i * PMKID_LEN,
166 NULL, NULL, 0);
167 if (pmksa_set == 0) {
168 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
169 break;
170 }
171 }
172
173 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
174 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
175 }
176
177
178 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
179 union wpa_event_data *data)
180 {
181 if (data == NULL) {
182 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
183 "event");
184 return;
185 }
186 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
187 " index=%d preauth=%d",
188 MAC2STR(data->pmkid_candidate.bssid),
189 data->pmkid_candidate.index,
190 data->pmkid_candidate.preauth);
191
192 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
193 data->pmkid_candidate.index,
194 data->pmkid_candidate.preauth);
195 }
196
197
198 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
199 {
200 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
201 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
202 return 0;
203
204 #ifdef IEEE8021X_EAPOL
205 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
206 wpa_s->current_ssid &&
207 !(wpa_s->current_ssid->eapol_flags &
208 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
209 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
210 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
211 * plaintext or static WEP keys). */
212 return 0;
213 }
214 #endif /* IEEE8021X_EAPOL */
215
216 return 1;
217 }
218
219
220 /**
221 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
222 * @wpa_s: pointer to wpa_supplicant data
223 * @ssid: Configuration data for the network
224 * Returns: 0 on success, -1 on failure
225 *
226 * This function is called when starting authentication with a network that is
227 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
228 */
229 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
230 struct wpa_ssid *ssid)
231 {
232 #ifdef IEEE8021X_EAPOL
233 #ifdef PCSC_FUNCS
234 int aka = 0, sim = 0, type;
235
236 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
237 return 0;
238
239 if (ssid->eap.eap_methods == NULL) {
240 sim = 1;
241 aka = 1;
242 } else {
243 struct eap_method_type *eap = ssid->eap.eap_methods;
244 while (eap->vendor != EAP_VENDOR_IETF ||
245 eap->method != EAP_TYPE_NONE) {
246 if (eap->vendor == EAP_VENDOR_IETF) {
247 if (eap->method == EAP_TYPE_SIM)
248 sim = 1;
249 else if (eap->method == EAP_TYPE_AKA)
250 aka = 1;
251 }
252 eap++;
253 }
254 }
255
256 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
257 sim = 0;
258 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL)
259 aka = 0;
260
261 if (!sim && !aka) {
262 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
263 "use SIM, but neither EAP-SIM nor EAP-AKA are "
264 "enabled");
265 return 0;
266 }
267
268 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
269 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
270 if (sim && aka)
271 type = SCARD_TRY_BOTH;
272 else if (aka)
273 type = SCARD_USIM_ONLY;
274 else
275 type = SCARD_GSM_SIM_ONLY;
276
277 wpa_s->scard = scard_init(type);
278 if (wpa_s->scard == NULL) {
279 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
280 "(pcsc-lite)");
281 return -1;
282 }
283 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
284 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
285 #endif /* PCSC_FUNCS */
286 #endif /* IEEE8021X_EAPOL */
287
288 return 0;
289 }
290
291
292 #ifndef CONFIG_NO_SCAN_PROCESSING
293 static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
294 struct wpa_ssid *ssid)
295 {
296 int i, privacy = 0;
297
298 if (ssid->mixed_cell)
299 return 1;
300
301 #ifdef CONFIG_WPS
302 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
303 return 1;
304 #endif /* CONFIG_WPS */
305
306 for (i = 0; i < NUM_WEP_KEYS; i++) {
307 if (ssid->wep_key_len[i]) {
308 privacy = 1;
309 break;
310 }
311 }
312 #ifdef IEEE8021X_EAPOL
313 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
314 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
315 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
316 privacy = 1;
317 #endif /* IEEE8021X_EAPOL */
318
319 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
320 privacy = 1;
321
322 if (bss->caps & IEEE80211_CAP_PRIVACY)
323 return privacy;
324 return !privacy;
325 }
326
327
328 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
329 struct wpa_ssid *ssid,
330 struct wpa_scan_res *bss)
331 {
332 struct wpa_ie_data ie;
333 int proto_match = 0;
334 const u8 *rsn_ie, *wpa_ie;
335 int ret;
336 int wep_ok;
337
338 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
339 if (ret >= 0)
340 return ret;
341
342 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
343 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
344 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
345 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
346 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
347
348 rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
349 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
350 proto_match++;
351
352 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
353 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
354 "failed");
355 break;
356 }
357
358 if (wep_ok &&
359 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
360 {
361 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
362 "in RSN IE");
363 return 1;
364 }
365
366 if (!(ie.proto & ssid->proto)) {
367 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
368 "mismatch");
369 break;
370 }
371
372 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
373 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
374 "cipher mismatch");
375 break;
376 }
377
378 if (!(ie.group_cipher & ssid->group_cipher)) {
379 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
380 "cipher mismatch");
381 break;
382 }
383
384 if (!(ie.key_mgmt & ssid->key_mgmt)) {
385 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
386 "mismatch");
387 break;
388 }
389
390 #ifdef CONFIG_IEEE80211W
391 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
392 ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
393 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
394 "frame protection");
395 break;
396 }
397 #endif /* CONFIG_IEEE80211W */
398
399 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
400 return 1;
401 }
402
403 wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
404 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
405 proto_match++;
406
407 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
408 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
409 "failed");
410 break;
411 }
412
413 if (wep_ok &&
414 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
415 {
416 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
417 "in WPA IE");
418 return 1;
419 }
420
421 if (!(ie.proto & ssid->proto)) {
422 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
423 "mismatch");
424 break;
425 }
426
427 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
428 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
429 "cipher mismatch");
430 break;
431 }
432
433 if (!(ie.group_cipher & ssid->group_cipher)) {
434 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
435 "cipher mismatch");
436 break;
437 }
438
439 if (!(ie.key_mgmt & ssid->key_mgmt)) {
440 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
441 "mismatch");
442 break;
443 }
444
445 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
446 return 1;
447 }
448
449 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
450 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
451 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
452 return 0;
453 }
454
455 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
456 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
457 return 1;
458 }
459
460 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
461 "WPA/WPA2");
462
463 return 0;
464 }
465
466
467 static int freq_allowed(int *freqs, int freq)
468 {
469 int i;
470
471 if (freqs == NULL)
472 return 1;
473
474 for (i = 0; freqs[i]; i++)
475 if (freqs[i] == freq)
476 return 1;
477 return 0;
478 }
479
480
481 static int ht_supported(const struct hostapd_hw_modes *mode)
482 {
483 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) {
484 /*
485 * The driver did not indicate whether it supports HT. Assume
486 * it does to avoid connection issues.
487 */
488 return 1;
489 }
490
491 /*
492 * IEEE Std 802.11n-2009 20.1.1:
493 * An HT non-AP STA shall support all EQM rates for one spatial stream.
494 */
495 return mode->mcs_set[0] == 0xff;
496 }
497
498
499 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_scan_res *bss)
500 {
501 const struct hostapd_hw_modes *mode = NULL, *modes;
502 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
503 const u8 *rate_ie;
504 int i, j, k;
505
506 modes = wpa_s->hw.modes;
507 if (modes == NULL) {
508 /*
509 * The driver does not provide any additional information
510 * about the utilized hardware, so allow the connection attempt
511 * to continue.
512 */
513 return 1;
514 }
515
516 for (i = 0; i < wpa_s->hw.num_modes; i++) {
517 for (j = 0; j < modes[i].num_channels; j++) {
518 int freq = modes[i].channels[j].freq;
519 if (freq == bss->freq) {
520 if (mode &&
521 mode->mode == HOSTAPD_MODE_IEEE80211G)
522 break; /* do not allow 802.11b replace
523 * 802.11g */
524 mode = &modes[i];
525 break;
526 }
527 }
528 }
529
530 if (mode == NULL)
531 return 0;
532
533 for (i = 0; i < (int) sizeof(scan_ie); i++) {
534 rate_ie = wpa_scan_get_ie(bss, scan_ie[i]);
535 if (rate_ie == NULL)
536 continue;
537
538 for (j = 2; j < rate_ie[1] + 2; j++) {
539 int flagged = !!(rate_ie[j] & 0x80);
540 int r = (rate_ie[j] & 0x7f) * 5;
541
542 /*
543 * IEEE Std 802.11n-2009 7.3.2.2:
544 * The new BSS Membership selector value is encoded
545 * like a legacy basic rate, but it is not a rate and
546 * only indicates if the BSS members are required to
547 * support the mandatory features of Clause 20 [HT PHY]
548 * in order to join the BSS.
549 */
550 if (flagged && ((rate_ie[j] & 0x7f) ==
551 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
552 if (!ht_supported(mode)) {
553 wpa_dbg(wpa_s, MSG_DEBUG,
554 " hardware does not support "
555 "HT PHY");
556 return 0;
557 }
558 continue;
559 }
560
561 if (!flagged)
562 continue;
563
564 /* check for legacy basic rates */
565 for (k = 0; k < mode->num_rates; k++) {
566 if (mode->rates[k] == r)
567 break;
568 }
569 if (k == mode->num_rates) {
570 /*
571 * IEEE Std 802.11-2007 7.3.2.2 demands that in
572 * order to join a BSS all required rates
573 * have to be supported by the hardware.
574 */
575 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does "
576 "not support required rate %d.%d Mbps",
577 r / 10, r % 10);
578 return 0;
579 }
580 }
581 }
582
583 return 1;
584 }
585
586
587 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
588 int i, struct wpa_scan_res *bss,
589 struct wpa_ssid *group)
590 {
591 const u8 *ssid_;
592 u8 wpa_ie_len, rsn_ie_len, ssid_len;
593 int wpa;
594 struct wpa_blacklist *e;
595 const u8 *ie;
596 struct wpa_ssid *ssid;
597
598 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
599 ssid_ = ie ? ie + 2 : (u8 *) "";
600 ssid_len = ie ? ie[1] : 0;
601
602 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
603 wpa_ie_len = ie ? ie[1] : 0;
604
605 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
606 rsn_ie_len = ie ? ie[1] : 0;
607
608 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
609 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
610 i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len),
611 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
612 wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
613
614 e = wpa_blacklist_get(wpa_s, bss->bssid);
615 if (e) {
616 int limit = 1;
617 if (wpa_supplicant_enabled_networks(wpa_s->conf) == 1) {
618 /*
619 * When only a single network is enabled, we can
620 * trigger blacklisting on the first failure. This
621 * should not be done with multiple enabled networks to
622 * avoid getting forced to move into a worse ESS on
623 * single error if there are no other BSSes of the
624 * current ESS.
625 */
626 limit = 0;
627 }
628 if (e->count > limit) {
629 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
630 "(count=%d limit=%d)", e->count, limit);
631 return NULL;
632 }
633 }
634
635 if (ssid_len == 0) {
636 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
637 return NULL;
638 }
639
640 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
641
642 for (ssid = group; ssid; ssid = ssid->pnext) {
643 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
644
645 if (ssid->disabled) {
646 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
647 continue;
648 }
649
650 #ifdef CONFIG_WPS
651 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
652 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
653 "(WPS)");
654 continue;
655 }
656
657 if (wpa && ssid->ssid_len == 0 &&
658 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
659 check_ssid = 0;
660
661 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
662 /* Only allow wildcard SSID match if an AP
663 * advertises active WPS operation that matches
664 * with our mode. */
665 check_ssid = 1;
666 if (ssid->ssid_len == 0 &&
667 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
668 check_ssid = 0;
669 }
670 #endif /* CONFIG_WPS */
671
672 if (ssid->bssid_set && ssid->ssid_len == 0 &&
673 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
674 check_ssid = 0;
675
676 if (check_ssid &&
677 (ssid_len != ssid->ssid_len ||
678 os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
679 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
680 continue;
681 }
682
683 if (ssid->bssid_set &&
684 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
685 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
686 continue;
687 }
688
689 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
690 continue;
691
692 if (!wpa &&
693 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
694 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
695 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
696 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
697 "not allowed");
698 continue;
699 }
700
701 if (!wpa_supplicant_match_privacy(bss, ssid)) {
702 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
703 "mismatch");
704 continue;
705 }
706
707 if (bss->caps & IEEE80211_CAP_IBSS) {
708 wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) "
709 "network");
710 continue;
711 }
712
713 if (!freq_allowed(ssid->freq_list, bss->freq)) {
714 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
715 "allowed");
716 continue;
717 }
718
719 if (!rate_match(wpa_s, bss)) {
720 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
721 "not match");
722 continue;
723 }
724
725 #ifdef CONFIG_P2P
726 /*
727 * TODO: skip the AP if its P2P IE has Group Formation
728 * bit set in the P2P Group Capability Bitmap and we
729 * are not in Group Formation with that device.
730 */
731 #endif /* CONFIG_P2P */
732
733 /* Matching configuration found */
734 return ssid;
735 }
736
737 /* No matching configuration found */
738 return NULL;
739 }
740
741
742 static struct wpa_bss *
743 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
744 struct wpa_scan_results *scan_res,
745 struct wpa_ssid *group,
746 struct wpa_ssid **selected_ssid)
747 {
748 size_t i;
749
750 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
751 group->priority);
752
753 for (i = 0; i < scan_res->num; i++) {
754 struct wpa_scan_res *bss = scan_res->res[i];
755 const u8 *ie, *ssid;
756 u8 ssid_len;
757
758 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
759 if (!*selected_ssid)
760 continue;
761
762 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
763 ssid = ie ? ie + 2 : (u8 *) "";
764 ssid_len = ie ? ie[1] : 0;
765
766 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
767 " ssid='%s'",
768 MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len));
769 return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len);
770 }
771
772 return NULL;
773 }
774
775
776 static struct wpa_bss *
777 wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
778 struct wpa_scan_results *scan_res,
779 struct wpa_ssid **selected_ssid)
780 {
781 struct wpa_bss *selected = NULL;
782 int prio;
783
784 while (selected == NULL) {
785 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
786 selected = wpa_supplicant_select_bss(
787 wpa_s, scan_res, wpa_s->conf->pssid[prio],
788 selected_ssid);
789 if (selected)
790 break;
791 }
792
793 if (selected == NULL && wpa_s->blacklist) {
794 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
795 "blacklist and try again");
796 wpa_blacklist_clear(wpa_s);
797 wpa_s->blacklist_cleared++;
798 } else if (selected == NULL)
799 break;
800 }
801
802 return selected;
803 }
804
805
806 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
807 int timeout_sec, int timeout_usec)
808 {
809 if (!wpa_supplicant_enabled_networks(wpa_s->conf)) {
810 /*
811 * No networks are enabled; short-circuit request so
812 * we don't wait timeout seconds before transitioning
813 * to INACTIVE state.
814 */
815 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
816 return;
817 }
818 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
819 }
820
821
822 void wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
823 struct wpa_bss *selected,
824 struct wpa_ssid *ssid)
825 {
826 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
827 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
828 "PBC session overlap");
829 #ifdef CONFIG_P2P
830 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
831 return;
832 #endif /* CONFIG_P2P */
833
834 #ifdef CONFIG_WPS
835 wpas_wps_cancel(wpa_s);
836 #endif /* CONFIG_WPS */
837 return;
838 }
839
840 /*
841 * Do not trigger new association unless the BSSID has changed or if
842 * reassociation is requested. If we are in process of associating with
843 * the selected BSSID, do not trigger new attempt.
844 */
845 if (wpa_s->reassociate ||
846 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
847 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
848 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
849 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
850 0))) {
851 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
852 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
853 return;
854 }
855 wpa_msg(wpa_s, MSG_DEBUG, "Request association: "
856 "reassociate: %d selected: "MACSTR " bssid: " MACSTR
857 " pending: " MACSTR " wpa_state: %s",
858 wpa_s->reassociate, MAC2STR(selected->bssid),
859 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
860 wpa_supplicant_state_txt(wpa_s->wpa_state));
861 wpa_supplicant_associate(wpa_s, selected, ssid);
862 } else {
863 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the "
864 "selected AP");
865 }
866 }
867
868
869 static struct wpa_ssid *
870 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
871 {
872 int prio;
873 struct wpa_ssid *ssid;
874
875 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
876 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
877 {
878 if (ssid->disabled)
879 continue;
880 if (ssid->mode == IEEE80211_MODE_IBSS ||
881 ssid->mode == IEEE80211_MODE_AP)
882 return ssid;
883 }
884 }
885 return NULL;
886 }
887
888
889 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
890 * on BSS added and BSS changed events */
891 static void wpa_supplicant_rsn_preauth_scan_results(
892 struct wpa_supplicant *wpa_s)
893 {
894 struct wpa_bss *bss;
895
896 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
897 return;
898
899 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
900 const u8 *ssid, *rsn;
901
902 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
903 if (ssid == NULL)
904 continue;
905
906 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
907 if (rsn == NULL)
908 continue;
909
910 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
911 }
912
913 }
914
915
916 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
917 struct wpa_bss *selected,
918 struct wpa_ssid *ssid,
919 struct wpa_scan_results *scan_res)
920 {
921 size_t i;
922 struct wpa_scan_res *current_bss = NULL;
923 int min_diff;
924
925 if (wpa_s->reassociate)
926 return 1; /* explicit request to reassociate */
927 if (wpa_s->wpa_state < WPA_ASSOCIATED)
928 return 1; /* we are not associated; continue */
929 if (wpa_s->current_ssid == NULL)
930 return 1; /* unknown current SSID */
931 if (wpa_s->current_ssid != ssid)
932 return 1; /* different network block */
933
934 if (wpas_driver_bss_selection(wpa_s))
935 return 0; /* Driver-based roaming */
936
937 for (i = 0; i < scan_res->num; i++) {
938 struct wpa_scan_res *res = scan_res->res[i];
939 const u8 *ie;
940 if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0)
941 continue;
942
943 ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
944 if (ie == NULL)
945 continue;
946 if (ie[1] != wpa_s->current_ssid->ssid_len ||
947 os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0)
948 continue;
949 current_bss = res;
950 break;
951 }
952
953 if (!current_bss)
954 return 1; /* current BSS not seen in scan results */
955
956 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
957 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
958 MAC2STR(current_bss->bssid), current_bss->level);
959 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
960 MAC2STR(selected->bssid), selected->level);
961
962 if (wpa_s->current_ssid->bssid_set &&
963 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
964 0) {
965 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
966 "has preferred BSSID");
967 return 1;
968 }
969
970 min_diff = 2;
971 if (current_bss->level < 0) {
972 if (current_bss->level < -85)
973 min_diff = 1;
974 else if (current_bss->level < -80)
975 min_diff = 2;
976 else if (current_bss->level < -75)
977 min_diff = 3;
978 else if (current_bss->level < -70)
979 min_diff = 4;
980 else
981 min_diff = 5;
982 }
983 if (abs(current_bss->level - selected->level) < min_diff) {
984 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
985 "in signal level");
986 return 0;
987 }
988
989 return 1;
990 }
991
992 /* Return < 0 if no scan results could be fetched. */
993 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
994 union wpa_event_data *data)
995 {
996 struct wpa_bss *selected;
997 struct wpa_ssid *ssid = NULL;
998 struct wpa_scan_results *scan_res;
999 int ap = 0;
1000
1001 #ifdef CONFIG_AP
1002 if (wpa_s->ap_iface)
1003 ap = 1;
1004 #endif /* CONFIG_AP */
1005
1006 wpa_supplicant_notify_scanning(wpa_s, 0);
1007
1008 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1009 data ? &data->scan_info :
1010 NULL, 1);
1011 if (scan_res == NULL) {
1012 if (wpa_s->conf->ap_scan == 2 || ap)
1013 return -1;
1014 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1015 "scanning again");
1016 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1017 return -1;
1018 }
1019
1020 #ifndef CONFIG_NO_RANDOM_POOL
1021 size_t i, num;
1022 num = scan_res->num;
1023 if (num > 10)
1024 num = 10;
1025 for (i = 0; i < num; i++) {
1026 u8 buf[5];
1027 struct wpa_scan_res *res = scan_res->res[i];
1028 buf[0] = res->bssid[5];
1029 buf[1] = res->qual & 0xff;
1030 buf[2] = res->noise & 0xff;
1031 buf[3] = res->level & 0xff;
1032 buf[4] = res->tsf & 0xff;
1033 random_add_randomness(buf, sizeof(buf));
1034 }
1035 #endif /* CONFIG_NO_RANDOM_POOL */
1036
1037 if (wpa_s->scan_res_handler) {
1038 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1039 struct wpa_scan_results *scan_res);
1040
1041 scan_res_handler = wpa_s->scan_res_handler;
1042 wpa_s->scan_res_handler = NULL;
1043 scan_res_handler(wpa_s, scan_res);
1044
1045 wpa_scan_results_free(scan_res);
1046 return 0;
1047 }
1048
1049 if (ap) {
1050 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1051 #ifdef CONFIG_AP
1052 if (wpa_s->ap_iface->scan_cb)
1053 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1054 #endif /* CONFIG_AP */
1055 wpa_scan_results_free(scan_res);
1056 return 0;
1057 }
1058
1059 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
1060 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1061 wpas_notify_scan_results(wpa_s);
1062
1063 wpas_notify_scan_done(wpa_s, 1);
1064
1065 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
1066 wpa_scan_results_free(scan_res);
1067 return 0;
1068 }
1069
1070 if (wpa_s->disconnected) {
1071 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1072 wpa_scan_results_free(scan_res);
1073 return 0;
1074 }
1075
1076 if (!wpas_driver_bss_selection(wpa_s) &&
1077 bgscan_notify_scan(wpa_s, scan_res) == 1) {
1078 wpa_scan_results_free(scan_res);
1079 return 0;
1080 }
1081
1082 selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
1083
1084 if (selected) {
1085 int skip;
1086 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid,
1087 scan_res);
1088 wpa_scan_results_free(scan_res);
1089 if (skip)
1090 return 0;
1091 wpa_supplicant_connect(wpa_s, selected, ssid);
1092 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1093 } else {
1094 wpa_scan_results_free(scan_res);
1095 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1096 ssid = wpa_supplicant_pick_new_network(wpa_s);
1097 if (ssid) {
1098 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1099 wpa_supplicant_associate(wpa_s, NULL, ssid);
1100 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1101 } else {
1102 int timeout_sec = wpa_s->scan_interval;
1103 int timeout_usec = 0;
1104 #ifdef CONFIG_P2P
1105 if (wpa_s->p2p_in_provisioning) {
1106 /*
1107 * Use shorter wait during P2P Provisioning
1108 * state to speed up group formation.
1109 */
1110 timeout_sec = 0;
1111 timeout_usec = 250000;
1112 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1113 timeout_usec);
1114 return 0;
1115 }
1116 #endif /* CONFIG_P2P */
1117 if (wpa_supplicant_req_sched_scan(wpa_s))
1118 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1119 timeout_usec);
1120 }
1121 }
1122 return 0;
1123 }
1124
1125
1126 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1127 union wpa_event_data *data)
1128 {
1129 const char *rn, *rn2;
1130 struct wpa_supplicant *ifs;
1131
1132 if (_wpa_supplicant_event_scan_results(wpa_s, data) < 0) {
1133 /*
1134 * If no scan results could be fetched, then no need to
1135 * notify those interfaces that did not actually request
1136 * this scan.
1137 */
1138 return;
1139 }
1140
1141 /*
1142 * Check other interfaces to see if they have the same radio-name. If
1143 * so, they get updated with this same scan info.
1144 */
1145 if (!wpa_s->driver->get_radio_name)
1146 return;
1147
1148 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
1149 if (rn == NULL || rn[0] == '\0')
1150 return;
1151
1152 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces "
1153 "sharing same radio (%s) in event_scan_results", rn);
1154
1155 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
1156 if (ifs == wpa_s || !ifs->driver->get_radio_name)
1157 continue;
1158
1159 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
1160 if (rn2 && os_strcmp(rn, rn2) == 0) {
1161 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1162 "sibling", ifs->ifname);
1163 _wpa_supplicant_event_scan_results(ifs, data);
1164 }
1165 }
1166 }
1167
1168 #endif /* CONFIG_NO_SCAN_PROCESSING */
1169
1170
1171 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1172 union wpa_event_data *data)
1173 {
1174 int l, len, found = 0, wpa_found, rsn_found;
1175 const u8 *p;
1176
1177 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1178 if (data->assoc_info.req_ies)
1179 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1180 data->assoc_info.req_ies_len);
1181 if (data->assoc_info.resp_ies) {
1182 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1183 data->assoc_info.resp_ies_len);
1184 #ifdef CONFIG_TDLS
1185 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1186 data->assoc_info.resp_ies_len);
1187 #endif /* CONFIG_TDLS */
1188 }
1189 if (data->assoc_info.beacon_ies)
1190 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1191 data->assoc_info.beacon_ies,
1192 data->assoc_info.beacon_ies_len);
1193 if (data->assoc_info.freq)
1194 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1195 data->assoc_info.freq);
1196
1197 p = data->assoc_info.req_ies;
1198 l = data->assoc_info.req_ies_len;
1199
1200 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1201 while (p && l >= 2) {
1202 len = p[1] + 2;
1203 if (len > l) {
1204 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1205 p, l);
1206 break;
1207 }
1208 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1209 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1210 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1211 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1212 break;
1213 found = 1;
1214 wpa_find_assoc_pmkid(wpa_s);
1215 break;
1216 }
1217 l -= len;
1218 p += len;
1219 }
1220 if (!found && data->assoc_info.req_ies)
1221 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1222
1223 #ifdef CONFIG_IEEE80211R
1224 #ifdef CONFIG_SME
1225 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1226 u8 bssid[ETH_ALEN];
1227 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1228 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1229 data->assoc_info.resp_ies,
1230 data->assoc_info.resp_ies_len,
1231 bssid) < 0) {
1232 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1233 "Reassociation Response failed");
1234 wpa_supplicant_deauthenticate(
1235 wpa_s, WLAN_REASON_INVALID_IE);
1236 return -1;
1237 }
1238 }
1239
1240 p = data->assoc_info.resp_ies;
1241 l = data->assoc_info.resp_ies_len;
1242
1243 #ifdef CONFIG_WPS_STRICT
1244 if (p && wpa_s->current_ssid &&
1245 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1246 struct wpabuf *wps;
1247 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1248 if (wps == NULL) {
1249 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1250 "include WPS IE in (Re)Association Response");
1251 return -1;
1252 }
1253
1254 if (wps_validate_assoc_resp(wps) < 0) {
1255 wpabuf_free(wps);
1256 wpa_supplicant_deauthenticate(
1257 wpa_s, WLAN_REASON_INVALID_IE);
1258 return -1;
1259 }
1260 wpabuf_free(wps);
1261 }
1262 #endif /* CONFIG_WPS_STRICT */
1263
1264 /* Go through the IEs and make a copy of the MDIE, if present. */
1265 while (p && l >= 2) {
1266 len = p[1] + 2;
1267 if (len > l) {
1268 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1269 p, l);
1270 break;
1271 }
1272 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1273 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1274 wpa_s->sme.ft_used = 1;
1275 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1276 MOBILITY_DOMAIN_ID_LEN);
1277 break;
1278 }
1279 l -= len;
1280 p += len;
1281 }
1282 #endif /* CONFIG_SME */
1283
1284 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1285 data->assoc_info.resp_ies_len);
1286 #endif /* CONFIG_IEEE80211R */
1287
1288 /* WPA/RSN IE from Beacon/ProbeResp */
1289 p = data->assoc_info.beacon_ies;
1290 l = data->assoc_info.beacon_ies_len;
1291
1292 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1293 */
1294 wpa_found = rsn_found = 0;
1295 while (p && l >= 2) {
1296 len = p[1] + 2;
1297 if (len > l) {
1298 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1299 p, l);
1300 break;
1301 }
1302 if (!wpa_found &&
1303 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1304 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1305 wpa_found = 1;
1306 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1307 }
1308
1309 if (!rsn_found &&
1310 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1311 rsn_found = 1;
1312 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1313 }
1314
1315 l -= len;
1316 p += len;
1317 }
1318
1319 if (!wpa_found && data->assoc_info.beacon_ies)
1320 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1321 if (!rsn_found && data->assoc_info.beacon_ies)
1322 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1323 if (wpa_found || rsn_found)
1324 wpa_s->ap_ies_from_associnfo = 1;
1325
1326 if (wpa_s->assoc_freq && data->assoc_info.freq &&
1327 wpa_s->assoc_freq != data->assoc_info.freq) {
1328 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1329 "%u to %u MHz",
1330 wpa_s->assoc_freq, data->assoc_info.freq);
1331 wpa_supplicant_update_scan_results(wpa_s);
1332 }
1333
1334 wpa_s->assoc_freq = data->assoc_info.freq;
1335
1336 return 0;
1337 }
1338
1339
1340 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1341 union wpa_event_data *data)
1342 {
1343 u8 bssid[ETH_ALEN];
1344 int ft_completed;
1345 int bssid_changed;
1346 struct wpa_driver_capa capa;
1347
1348 #ifdef CONFIG_AP
1349 if (wpa_s->ap_iface) {
1350 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1351 data->assoc_info.addr,
1352 data->assoc_info.req_ies,
1353 data->assoc_info.req_ies_len,
1354 data->assoc_info.reassoc);
1355 return;
1356 }
1357 #endif /* CONFIG_AP */
1358
1359 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1360 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1361 return;
1362
1363 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
1364 if (wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
1365 os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
1366 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1367 MACSTR, MAC2STR(bssid));
1368 random_add_randomness(bssid, ETH_ALEN);
1369 bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN);
1370 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1371 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1372 if (bssid_changed)
1373 wpas_notify_bssid_changed(wpa_s);
1374
1375 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1376 wpa_clear_keys(wpa_s, bssid);
1377 }
1378 if (wpa_supplicant_select_config(wpa_s) < 0) {
1379 wpa_supplicant_disassociate(
1380 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1381 return;
1382 }
1383 if (wpa_s->current_ssid) {
1384 struct wpa_bss *bss = NULL;
1385 struct wpa_ssid *ssid = wpa_s->current_ssid;
1386 if (ssid->ssid_len > 0)
1387 bss = wpa_bss_get(wpa_s, bssid,
1388 ssid->ssid, ssid->ssid_len);
1389 if (!bss)
1390 bss = wpa_bss_get_bssid(wpa_s, bssid);
1391 if (bss)
1392 wpa_s->current_bss = bss;
1393 }
1394 }
1395
1396 #ifdef CONFIG_SME
1397 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1398 wpa_s->sme.prev_bssid_set = 1;
1399 #endif /* CONFIG_SME */
1400
1401 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1402 if (wpa_s->current_ssid) {
1403 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1404 * initialized before association, but for other modes,
1405 * initialize PC/SC here, if the current configuration needs
1406 * smartcard or SIM/USIM. */
1407 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1408 }
1409 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1410 if (wpa_s->l2)
1411 l2_packet_notify_auth_start(wpa_s->l2);
1412
1413 /*
1414 * Set portEnabled first to FALSE in order to get EAP state machine out
1415 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1416 * state machine may transit to AUTHENTICATING state based on obsolete
1417 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1418 * AUTHENTICATED without ever giving chance to EAP state machine to
1419 * reset the state.
1420 */
1421 if (!ft_completed) {
1422 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1423 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1424 }
1425 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1426 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1427 /* 802.1X::portControl = Auto */
1428 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1429 wpa_s->eapol_received = 0;
1430 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1431 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1432 (wpa_s->current_ssid &&
1433 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1434 wpa_supplicant_cancel_auth_timeout(wpa_s);
1435 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1436 } else if (!ft_completed) {
1437 /* Timeout for receiving the first EAPOL packet */
1438 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1439 }
1440 wpa_supplicant_cancel_scan(wpa_s);
1441
1442 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1443 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1444 /*
1445 * We are done; the driver will take care of RSN 4-way
1446 * handshake.
1447 */
1448 wpa_supplicant_cancel_auth_timeout(wpa_s);
1449 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1450 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1451 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1452 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1453 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1454 /*
1455 * The driver will take care of RSN 4-way handshake, so we need
1456 * to allow EAPOL supplicant to complete its work without
1457 * waiting for WPA supplicant.
1458 */
1459 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1460 } else if (ft_completed) {
1461 /*
1462 * FT protocol completed - make sure EAPOL state machine ends
1463 * up in authenticated.
1464 */
1465 wpa_supplicant_cancel_auth_timeout(wpa_s);
1466 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1467 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1468 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1469 }
1470
1471 if (wpa_s->pending_eapol_rx) {
1472 struct os_time now, age;
1473 os_get_time(&now);
1474 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1475 if (age.sec == 0 && age.usec < 100000 &&
1476 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1477 0) {
1478 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
1479 "frame that was received just before "
1480 "association notification");
1481 wpa_supplicant_rx_eapol(
1482 wpa_s, wpa_s->pending_eapol_rx_src,
1483 wpabuf_head(wpa_s->pending_eapol_rx),
1484 wpabuf_len(wpa_s->pending_eapol_rx));
1485 }
1486 wpabuf_free(wpa_s->pending_eapol_rx);
1487 wpa_s->pending_eapol_rx = NULL;
1488 }
1489
1490 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1491 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
1492 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1493 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
1494 /* Set static WEP keys again */
1495 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
1496 }
1497
1498 #ifdef CONFIG_IBSS_RSN
1499 if (wpa_s->current_ssid &&
1500 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
1501 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
1502 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
1503 wpa_s->ibss_rsn == NULL) {
1504 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
1505 if (!wpa_s->ibss_rsn) {
1506 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
1507 wpa_supplicant_deauthenticate(
1508 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1509 return;
1510 }
1511
1512 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
1513 }
1514 #endif /* CONFIG_IBSS_RSN */
1515 }
1516
1517
1518 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
1519 u16 reason_code)
1520 {
1521 const u8 *bssid;
1522 int authenticating;
1523 u8 prev_pending_bssid[ETH_ALEN];
1524
1525 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
1526 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
1527
1528 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1529 /*
1530 * At least Host AP driver and a Prism3 card seemed to be
1531 * generating streams of disconnected events when configuring
1532 * IBSS for WPA-None. Ignore them for now.
1533 */
1534 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
1535 "IBSS/WPA-None mode");
1536 return;
1537 }
1538
1539 if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
1540 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1541 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
1542 "pre-shared key may be incorrect");
1543 }
1544 if (!wpa_s->auto_reconnect_disabled ||
1545 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
1546 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Auto connect enabled: try to "
1547 "reconnect (wps=%d)",
1548 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS);
1549 if (wpa_s->wpa_state >= WPA_ASSOCIATING)
1550 wpa_supplicant_req_scan(wpa_s, 0, 100000);
1551 } else {
1552 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Auto connect disabled: do not "
1553 "try to re-connect");
1554 wpa_s->reassociate = 0;
1555 wpa_s->disconnected = 1;
1556 }
1557 bssid = wpa_s->bssid;
1558 if (is_zero_ether_addr(bssid))
1559 bssid = wpa_s->pending_bssid;
1560 wpas_connection_failed(wpa_s, bssid);
1561 wpa_sm_notify_disassoc(wpa_s->wpa);
1562 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
1563 " reason=%d",
1564 MAC2STR(bssid), reason_code);
1565 if (wpa_supplicant_dynamic_keys(wpa_s)) {
1566 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
1567 wpa_s->keys_cleared = 0;
1568 wpa_clear_keys(wpa_s, wpa_s->bssid);
1569 }
1570 wpa_supplicant_mark_disassoc(wpa_s);
1571
1572 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1573 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
1574 }
1575
1576
1577 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1578 static void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx,
1579 void *sock_ctx)
1580 {
1581 struct wpa_supplicant *wpa_s = eloop_ctx;
1582
1583 if (!wpa_s->pending_mic_error_report)
1584 return;
1585
1586 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
1587 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
1588 wpa_s->pending_mic_error_report = 0;
1589 }
1590 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1591
1592
1593 static void
1594 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
1595 union wpa_event_data *data)
1596 {
1597 int pairwise;
1598 struct os_time t;
1599
1600 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
1601 pairwise = (data && data->michael_mic_failure.unicast);
1602 os_get_time(&t);
1603 if ((wpa_s->last_michael_mic_error &&
1604 t.sec - wpa_s->last_michael_mic_error <= 60) ||
1605 wpa_s->pending_mic_error_report) {
1606 if (wpa_s->pending_mic_error_report) {
1607 /*
1608 * Send the pending MIC error report immediately since
1609 * we are going to start countermeasures and AP better
1610 * do the same.
1611 */
1612 wpa_sm_key_request(wpa_s->wpa, 1,
1613 wpa_s->pending_mic_error_pairwise);
1614 }
1615
1616 /* Send the new MIC error report immediately since we are going
1617 * to start countermeasures and AP better do the same.
1618 */
1619 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1620
1621 /* initialize countermeasures */
1622 wpa_s->countermeasures = 1;
1623 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
1624
1625 /*
1626 * Need to wait for completion of request frame. We do not get
1627 * any callback for the message completion, so just wait a
1628 * short while and hope for the best. */
1629 os_sleep(0, 10000);
1630
1631 wpa_drv_set_countermeasures(wpa_s, 1);
1632 wpa_supplicant_deauthenticate(wpa_s,
1633 WLAN_REASON_MICHAEL_MIC_FAILURE);
1634 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
1635 wpa_s, NULL);
1636 eloop_register_timeout(60, 0,
1637 wpa_supplicant_stop_countermeasures,
1638 wpa_s, NULL);
1639 /* TODO: mark the AP rejected for 60 second. STA is
1640 * allowed to associate with another AP.. */
1641 } else {
1642 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1643 if (wpa_s->mic_errors_seen) {
1644 /*
1645 * Reduce the effectiveness of Michael MIC error
1646 * reports as a means for attacking against TKIP if
1647 * more than one MIC failure is noticed with the same
1648 * PTK. We delay the transmission of the reports by a
1649 * random time between 0 and 60 seconds in order to
1650 * force the attacker wait 60 seconds before getting
1651 * the information on whether a frame resulted in a MIC
1652 * failure.
1653 */
1654 u8 rval[4];
1655 int sec;
1656
1657 if (os_get_random(rval, sizeof(rval)) < 0)
1658 sec = os_random() % 60;
1659 else
1660 sec = WPA_GET_BE32(rval) % 60;
1661 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
1662 "report %d seconds", sec);
1663 wpa_s->pending_mic_error_report = 1;
1664 wpa_s->pending_mic_error_pairwise = pairwise;
1665 eloop_cancel_timeout(
1666 wpa_supplicant_delayed_mic_error_report,
1667 wpa_s, NULL);
1668 eloop_register_timeout(
1669 sec, os_random() % 1000000,
1670 wpa_supplicant_delayed_mic_error_report,
1671 wpa_s, NULL);
1672 } else {
1673 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1674 }
1675 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1676 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1677 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1678 }
1679 wpa_s->last_michael_mic_error = t.sec;
1680 wpa_s->mic_errors_seen++;
1681 }
1682
1683
1684 #ifdef CONFIG_TERMINATE_ONLASTIF
1685 static int any_interfaces(struct wpa_supplicant *head)
1686 {
1687 struct wpa_supplicant *wpa_s;
1688
1689 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
1690 if (!wpa_s->interface_removed)
1691 return 1;
1692 return 0;
1693 }
1694 #endif /* CONFIG_TERMINATE_ONLASTIF */
1695
1696
1697 static void
1698 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
1699 union wpa_event_data *data)
1700 {
1701 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
1702 return;
1703
1704 switch (data->interface_status.ievent) {
1705 case EVENT_INTERFACE_ADDED:
1706 if (!wpa_s->interface_removed)
1707 break;
1708 wpa_s->interface_removed = 0;
1709 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
1710 if (wpa_supplicant_driver_init(wpa_s) < 0) {
1711 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
1712 "driver after interface was added");
1713 }
1714 break;
1715 case EVENT_INTERFACE_REMOVED:
1716 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
1717 wpa_s->interface_removed = 1;
1718 wpa_supplicant_mark_disassoc(wpa_s);
1719 l2_packet_deinit(wpa_s->l2);
1720 wpa_s->l2 = NULL;
1721 #ifdef CONFIG_IBSS_RSN
1722 ibss_rsn_deinit(wpa_s->ibss_rsn);
1723 wpa_s->ibss_rsn = NULL;
1724 #endif /* CONFIG_IBSS_RSN */
1725 #ifdef CONFIG_TERMINATE_ONLASTIF
1726 /* check if last interface */
1727 if (!any_interfaces(wpa_s->global->ifaces))
1728 eloop_terminate();
1729 #endif /* CONFIG_TERMINATE_ONLASTIF */
1730 break;
1731 }
1732 }
1733
1734
1735 #ifdef CONFIG_PEERKEY
1736 static void
1737 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
1738 union wpa_event_data *data)
1739 {
1740 if (data == NULL)
1741 return;
1742 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
1743 }
1744 #endif /* CONFIG_PEERKEY */
1745
1746
1747 #ifdef CONFIG_TDLS
1748 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
1749 union wpa_event_data *data)
1750 {
1751 if (data == NULL)
1752 return;
1753 switch (data->tdls.oper) {
1754 case TDLS_REQUEST_SETUP:
1755 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
1756 break;
1757 case TDLS_REQUEST_TEARDOWN:
1758 /* request from driver to add FTIE */
1759 wpa_tdls_recv_teardown_notify(wpa_s->wpa, data->tdls.peer,
1760 data->tdls.reason_code);
1761 break;
1762 }
1763 }
1764 #endif /* CONFIG_TDLS */
1765
1766
1767 #ifdef CONFIG_IEEE80211R
1768 static void
1769 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
1770 union wpa_event_data *data)
1771 {
1772 if (data == NULL)
1773 return;
1774
1775 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
1776 data->ft_ies.ies_len,
1777 data->ft_ies.ft_action,
1778 data->ft_ies.target_ap,
1779 data->ft_ies.ric_ies,
1780 data->ft_ies.ric_ies_len) < 0) {
1781 /* TODO: prevent MLME/driver from trying to associate? */
1782 }
1783 }
1784 #endif /* CONFIG_IEEE80211R */
1785
1786
1787 #ifdef CONFIG_IBSS_RSN
1788 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
1789 union wpa_event_data *data)
1790 {
1791 struct wpa_ssid *ssid;
1792 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1793 return;
1794 if (data == NULL)
1795 return;
1796 ssid = wpa_s->current_ssid;
1797 if (ssid == NULL)
1798 return;
1799 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
1800 return;
1801
1802 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
1803 }
1804 #endif /* CONFIG_IBSS_RSN */
1805
1806
1807 #ifdef CONFIG_IEEE80211R
1808 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
1809 size_t len)
1810 {
1811 const u8 *sta_addr, *target_ap_addr;
1812 u16 status;
1813
1814 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
1815 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1816 return; /* only SME case supported for now */
1817 if (len < 1 + 2 * ETH_ALEN + 2)
1818 return;
1819 if (data[0] != 2)
1820 return; /* Only FT Action Response is supported for now */
1821 sta_addr = data + 1;
1822 target_ap_addr = data + 1 + ETH_ALEN;
1823 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
1824 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
1825 MACSTR " TargetAP " MACSTR " status %u",
1826 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
1827
1828 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
1829 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
1830 " in FT Action Response", MAC2STR(sta_addr));
1831 return;
1832 }
1833
1834 if (status) {
1835 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
1836 "failure (status code %d)", status);
1837 /* TODO: report error to FT code(?) */
1838 return;
1839 }
1840
1841 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
1842 len - (1 + 2 * ETH_ALEN + 2), 1,
1843 target_ap_addr, NULL, 0) < 0)
1844 return;
1845
1846 #ifdef CONFIG_SME
1847 {
1848 struct wpa_bss *bss;
1849 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
1850 if (bss)
1851 wpa_s->sme.freq = bss->freq;
1852 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
1853 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
1854 WLAN_AUTH_FT);
1855 }
1856 #endif /* CONFIG_SME */
1857 }
1858 #endif /* CONFIG_IEEE80211R */
1859
1860
1861 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
1862 struct unprot_deauth *e)
1863 {
1864 #ifdef CONFIG_IEEE80211W
1865 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
1866 "dropped: " MACSTR " -> " MACSTR
1867 " (reason code %u)",
1868 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
1869 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
1870 #endif /* CONFIG_IEEE80211W */
1871 }
1872
1873
1874 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
1875 struct unprot_disassoc *e)
1876 {
1877 #ifdef CONFIG_IEEE80211W
1878 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
1879 "dropped: " MACSTR " -> " MACSTR
1880 " (reason code %u)",
1881 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
1882 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
1883 #endif /* CONFIG_IEEE80211W */
1884 }
1885
1886
1887 static void wnm_action_rx(struct wpa_supplicant *wpa_s, struct rx_action *rx)
1888 {
1889 u8 action, mode;
1890 const u8 *pos, *end;
1891
1892 if (rx->data == NULL || rx->len == 0)
1893 return;
1894
1895 pos = rx->data;
1896 end = pos + rx->len;
1897 action = *pos++;
1898
1899 wpa_printf(MSG_DEBUG, "WNM: RX action %u from " MACSTR,
1900 action, MAC2STR(rx->sa));
1901 switch (action) {
1902 case WNM_BSS_TRANS_MGMT_REQ:
1903 if (pos + 5 > end)
1904 break;
1905 wpa_printf(MSG_DEBUG, "WNM: BSS Transition Management "
1906 "Request: dialog_token=%u request_mode=0x%x "
1907 "disassoc_timer=%u validity_interval=%u",
1908 pos[0], pos[1], WPA_GET_LE16(pos + 2), pos[4]);
1909 mode = pos[1];
1910 pos += 5;
1911 if (mode & 0x08)
1912 pos += 12; /* BSS Termination Duration */
1913 if (mode & 0x10) {
1914 char url[256];
1915 if (pos + 1 > end || pos + 1 + pos[0] > end) {
1916 wpa_printf(MSG_DEBUG, "WNM: Invalid BSS "
1917 "Transition Management Request "
1918 "(URL)");
1919 break;
1920 }
1921 os_memcpy(url, pos + 1, pos[0]);
1922 url[pos[0]] = '\0';
1923 wpa_msg(wpa_s, MSG_INFO, "WNM: ESS Disassociation "
1924 "Imminent - session_info_url=%s", url);
1925 }
1926 break;
1927 }
1928 }
1929
1930
1931 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
1932 union wpa_event_data *data)
1933 {
1934 struct wpa_supplicant *wpa_s = ctx;
1935 u16 reason_code = 0;
1936
1937 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
1938 event != EVENT_INTERFACE_ENABLED &&
1939 event != EVENT_INTERFACE_STATUS) {
1940 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore event %d while interface is "
1941 "disabled", event);
1942 return;
1943 }
1944
1945 wpa_dbg(wpa_s, MSG_DEBUG, "Event %d received on interface %s",
1946 event, wpa_s->ifname);
1947
1948 switch (event) {
1949 case EVENT_AUTH:
1950 sme_event_auth(wpa_s, data);
1951 break;
1952 case EVENT_ASSOC:
1953 wpa_supplicant_event_assoc(wpa_s, data);
1954 break;
1955 case EVENT_DISASSOC:
1956 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
1957 if (data) {
1958 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u",
1959 data->disassoc_info.reason_code);
1960 if (data->disassoc_info.addr)
1961 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
1962 MAC2STR(data->disassoc_info.addr));
1963 }
1964 #ifdef CONFIG_AP
1965 if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
1966 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
1967 data->disassoc_info.addr);
1968 break;
1969 }
1970 #endif /* CONFIG_AP */
1971 if (data) {
1972 reason_code = data->disassoc_info.reason_code;
1973 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
1974 data->disassoc_info.ie,
1975 data->disassoc_info.ie_len);
1976 #ifdef CONFIG_P2P
1977 wpas_p2p_disassoc_notif(
1978 wpa_s, data->disassoc_info.addr, reason_code,
1979 data->disassoc_info.ie,
1980 data->disassoc_info.ie_len);
1981 #endif /* CONFIG_P2P */
1982 }
1983 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
1984 sme_event_disassoc(wpa_s, data);
1985 /* fall through */
1986 case EVENT_DEAUTH:
1987 if (event == EVENT_DEAUTH) {
1988 wpa_dbg(wpa_s, MSG_DEBUG,
1989 "Deauthentication notification");
1990 if (data) {
1991 reason_code = data->deauth_info.reason_code;
1992 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u",
1993 data->deauth_info.reason_code);
1994 if (data->deauth_info.addr) {
1995 wpa_dbg(wpa_s, MSG_DEBUG, " * address "
1996 MACSTR,
1997 MAC2STR(data->deauth_info.
1998 addr));
1999 }
2000 wpa_hexdump(MSG_DEBUG,
2001 "Deauthentication frame IE(s)",
2002 data->deauth_info.ie,
2003 data->deauth_info.ie_len);
2004 #ifdef CONFIG_P2P
2005 wpas_p2p_deauth_notif(
2006 wpa_s, data->deauth_info.addr,
2007 reason_code,
2008 data->deauth_info.ie,
2009 data->deauth_info.ie_len);
2010 #endif /* CONFIG_P2P */
2011 }
2012 }
2013 #ifdef CONFIG_AP
2014 if (wpa_s->ap_iface && data && data->deauth_info.addr) {
2015 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2016 data->deauth_info.addr);
2017 break;
2018 }
2019 #endif /* CONFIG_AP */
2020 wpa_supplicant_event_disassoc(wpa_s, reason_code);
2021 break;
2022 case EVENT_MICHAEL_MIC_FAILURE:
2023 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
2024 break;
2025 #ifndef CONFIG_NO_SCAN_PROCESSING
2026 case EVENT_SCAN_RESULTS:
2027 wpa_supplicant_event_scan_results(wpa_s, data);
2028 break;
2029 #endif /* CONFIG_NO_SCAN_PROCESSING */
2030 case EVENT_ASSOCINFO:
2031 wpa_supplicant_event_associnfo(wpa_s, data);
2032 break;
2033 case EVENT_INTERFACE_STATUS:
2034 wpa_supplicant_event_interface_status(wpa_s, data);
2035 break;
2036 case EVENT_PMKID_CANDIDATE:
2037 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
2038 break;
2039 #ifdef CONFIG_PEERKEY
2040 case EVENT_STKSTART:
2041 wpa_supplicant_event_stkstart(wpa_s, data);
2042 break;
2043 #endif /* CONFIG_PEERKEY */
2044 #ifdef CONFIG_TDLS
2045 case EVENT_TDLS:
2046 wpa_supplicant_event_tdls(wpa_s, data);
2047 break;
2048 #endif /* CONFIG_TDLS */
2049 #ifdef CONFIG_IEEE80211R
2050 case EVENT_FT_RESPONSE:
2051 wpa_supplicant_event_ft_response(wpa_s, data);
2052 break;
2053 #endif /* CONFIG_IEEE80211R */
2054 #ifdef CONFIG_IBSS_RSN
2055 case EVENT_IBSS_RSN_START:
2056 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
2057 break;
2058 #endif /* CONFIG_IBSS_RSN */
2059 case EVENT_ASSOC_REJECT:
2060 if (data->assoc_reject.bssid)
2061 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2062 "bssid=" MACSTR " status_code=%u",
2063 MAC2STR(data->assoc_reject.bssid),
2064 data->assoc_reject.status_code);
2065 else
2066 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2067 "status_code=%u",
2068 data->assoc_reject.status_code);
2069 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2070 sme_event_assoc_reject(wpa_s, data);
2071 break;
2072 case EVENT_AUTH_TIMED_OUT:
2073 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2074 sme_event_auth_timed_out(wpa_s, data);
2075 break;
2076 case EVENT_ASSOC_TIMED_OUT:
2077 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2078 sme_event_assoc_timed_out(wpa_s, data);
2079 break;
2080 case EVENT_TX_STATUS:
2081 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
2082 " type=%d stype=%d",
2083 MAC2STR(data->tx_status.dst),
2084 data->tx_status.type, data->tx_status.stype);
2085 #ifdef CONFIG_AP
2086 if (wpa_s->ap_iface == NULL) {
2087 #ifdef CONFIG_OFFCHANNEL
2088 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2089 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
2090 offchannel_send_action_tx_status(
2091 wpa_s, data->tx_status.dst,
2092 data->tx_status.data,
2093 data->tx_status.data_len,
2094 data->tx_status.ack ?
2095 OFFCHANNEL_SEND_ACTION_SUCCESS :
2096 OFFCHANNEL_SEND_ACTION_NO_ACK);
2097 #endif /* CONFIG_OFFCHANNEL */
2098 break;
2099 }
2100 #endif /* CONFIG_AP */
2101 #ifdef CONFIG_OFFCHANNEL
2102 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
2103 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
2104 /*
2105 * Catch TX status events for Action frames we sent via group
2106 * interface in GO mode.
2107 */
2108 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2109 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
2110 os_memcmp(wpa_s->parent->pending_action_dst,
2111 data->tx_status.dst, ETH_ALEN) == 0) {
2112 offchannel_send_action_tx_status(
2113 wpa_s->parent, data->tx_status.dst,
2114 data->tx_status.data,
2115 data->tx_status.data_len,
2116 data->tx_status.ack ?
2117 OFFCHANNEL_SEND_ACTION_SUCCESS :
2118 OFFCHANNEL_SEND_ACTION_NO_ACK);
2119 break;
2120 }
2121 #endif /* CONFIG_OFFCHANNEL */
2122 #ifdef CONFIG_AP
2123 switch (data->tx_status.type) {
2124 case WLAN_FC_TYPE_MGMT:
2125 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
2126 data->tx_status.data_len,
2127 data->tx_status.stype,
2128 data->tx_status.ack);
2129 break;
2130 case WLAN_FC_TYPE_DATA:
2131 ap_tx_status(wpa_s, data->tx_status.dst,
2132 data->tx_status.data,
2133 data->tx_status.data_len,
2134 data->tx_status.ack);
2135 break;
2136 }
2137 #endif /* CONFIG_AP */
2138 break;
2139 #ifdef CONFIG_AP
2140 case EVENT_DRIVER_CLIENT_POLL_OK:
2141 ap_client_poll_ok(wpa_s, data->client_poll.addr);
2142 break;
2143 case EVENT_RX_FROM_UNKNOWN:
2144 if (wpa_s->ap_iface == NULL)
2145 break;
2146 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
2147 data->rx_from_unknown.wds);
2148 break;
2149 case EVENT_RX_MGMT:
2150 if (wpa_s->ap_iface == NULL) {
2151 #ifdef CONFIG_P2P
2152 u16 fc, stype;
2153 const struct ieee80211_mgmt *mgmt;
2154 mgmt = (const struct ieee80211_mgmt *)
2155 data->rx_mgmt.frame;
2156 fc = le_to_host16(mgmt->frame_control);
2157 stype = WLAN_FC_GET_STYPE(fc);
2158 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2159 data->rx_mgmt.frame_len > 24) {
2160 const u8 *src = mgmt->sa;
2161 const u8 *ie = mgmt->u.probe_req.variable;
2162 size_t ie_len = data->rx_mgmt.frame_len -
2163 (mgmt->u.probe_req.variable -
2164 data->rx_mgmt.frame);
2165 wpas_p2p_probe_req_rx(wpa_s, src, mgmt->da,
2166 mgmt->bssid, ie, ie_len);
2167 break;
2168 }
2169 #endif /* CONFIG_P2P */
2170 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
2171 "management frame in non-AP mode");
2172 break;
2173 }
2174 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
2175 break;
2176 #endif /* CONFIG_AP */
2177 case EVENT_RX_ACTION:
2178 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2179 " Category=%u DataLen=%d freq=%d MHz",
2180 MAC2STR(data->rx_action.sa),
2181 data->rx_action.category, (int) data->rx_action.len,
2182 data->rx_action.freq);
2183 #ifdef CONFIG_IEEE80211R
2184 if (data->rx_action.category == WLAN_ACTION_FT) {
2185 ft_rx_action(wpa_s, data->rx_action.data,
2186 data->rx_action.len);
2187 break;
2188 }
2189 #endif /* CONFIG_IEEE80211R */
2190 #ifdef CONFIG_IEEE80211W
2191 #ifdef CONFIG_SME
2192 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) {
2193 sme_sa_query_rx(wpa_s, data->rx_action.sa,
2194 data->rx_action.data,
2195 data->rx_action.len);
2196 break;
2197 }
2198 #endif /* CONFIG_SME */
2199 #endif /* CONFIG_IEEE80211W */
2200 #ifdef CONFIG_GAS
2201 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2202 gas_query_rx(wpa_s->gas, data->rx_action.da,
2203 data->rx_action.sa, data->rx_action.bssid,
2204 data->rx_action.data, data->rx_action.len,
2205 data->rx_action.freq) == 0)
2206 break;
2207 #endif /* CONFIG_GAS */
2208 if (data->rx_action.category == WLAN_ACTION_WNM) {
2209 wnm_action_rx(wpa_s, &data->rx_action);
2210 break;
2211 }
2212 #ifdef CONFIG_P2P
2213 wpas_p2p_rx_action(wpa_s, data->rx_action.da,
2214 data->rx_action.sa,
2215 data->rx_action.bssid,
2216 data->rx_action.category,
2217 data->rx_action.data,
2218 data->rx_action.len, data->rx_action.freq);
2219 #endif /* CONFIG_P2P */
2220 break;
2221 case EVENT_RX_PROBE_REQ:
2222 if (data->rx_probe_req.sa == NULL ||
2223 data->rx_probe_req.ie == NULL)
2224 break;
2225 #ifdef CONFIG_AP
2226 if (wpa_s->ap_iface) {
2227 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
2228 data->rx_probe_req.sa,
2229 data->rx_probe_req.da,
2230 data->rx_probe_req.bssid,
2231 data->rx_probe_req.ie,
2232 data->rx_probe_req.ie_len);
2233 break;
2234 }
2235 #endif /* CONFIG_AP */
2236 #ifdef CONFIG_P2P
2237 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
2238 data->rx_probe_req.da,
2239 data->rx_probe_req.bssid,
2240 data->rx_probe_req.ie,
2241 data->rx_probe_req.ie_len);
2242 #endif /* CONFIG_P2P */
2243 break;
2244 case EVENT_REMAIN_ON_CHANNEL:
2245 #ifdef CONFIG_OFFCHANNEL
2246 offchannel_remain_on_channel_cb(
2247 wpa_s, data->remain_on_channel.freq,
2248 data->remain_on_channel.duration);
2249 #endif /* CONFIG_OFFCHANNEL */
2250 #ifdef CONFIG_P2P
2251 wpas_p2p_remain_on_channel_cb(
2252 wpa_s, data->remain_on_channel.freq,
2253 data->remain_on_channel.duration);
2254 #endif /* CONFIG_P2P */
2255 break;
2256 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
2257 #ifdef CONFIG_OFFCHANNEL
2258 offchannel_cancel_remain_on_channel_cb(
2259 wpa_s, data->remain_on_channel.freq);
2260 #endif /* CONFIG_OFFCHANNEL */
2261 #ifdef CONFIG_P2P
2262 wpas_p2p_cancel_remain_on_channel_cb(
2263 wpa_s, data->remain_on_channel.freq);
2264 #endif /* CONFIG_P2P */
2265 break;
2266 #ifdef CONFIG_P2P
2267 case EVENT_P2P_DEV_FOUND: {
2268 struct p2p_peer_info peer_info;
2269
2270 os_memset(&peer_info, 0, sizeof(peer_info));
2271 if (data->p2p_dev_found.dev_addr)
2272 os_memcpy(peer_info.p2p_device_addr,
2273 data->p2p_dev_found.dev_addr, ETH_ALEN);
2274 if (data->p2p_dev_found.pri_dev_type)
2275 os_memcpy(peer_info.pri_dev_type,
2276 data->p2p_dev_found.pri_dev_type,
2277 sizeof(peer_info.pri_dev_type));
2278 if (data->p2p_dev_found.dev_name)
2279 os_strlcpy(peer_info.device_name,
2280 data->p2p_dev_found.dev_name,
2281 sizeof(peer_info.device_name));
2282 peer_info.config_methods = data->p2p_dev_found.config_methods;
2283 peer_info.dev_capab = data->p2p_dev_found.dev_capab;
2284 peer_info.group_capab = data->p2p_dev_found.group_capab;
2285
2286 /*
2287 * FIX: new_device=1 is not necessarily correct. We should
2288 * maintain a P2P peer database in wpa_supplicant and update
2289 * this information based on whether the peer is truly new.
2290 */
2291 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1);
2292 break;
2293 }
2294 case EVENT_P2P_GO_NEG_REQ_RX:
2295 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src,
2296 data->p2p_go_neg_req_rx.dev_passwd_id);
2297 break;
2298 case EVENT_P2P_GO_NEG_COMPLETED:
2299 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res);
2300 break;
2301 case EVENT_P2P_PROV_DISC_REQUEST:
2302 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer,
2303 data->p2p_prov_disc_req.config_methods,
2304 data->p2p_prov_disc_req.dev_addr,
2305 data->p2p_prov_disc_req.pri_dev_type,
2306 data->p2p_prov_disc_req.dev_name,
2307 data->p2p_prov_disc_req.supp_config_methods,
2308 data->p2p_prov_disc_req.dev_capab,
2309 data->p2p_prov_disc_req.group_capab);
2310 break;
2311 case EVENT_P2P_PROV_DISC_RESPONSE:
2312 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer,
2313 data->p2p_prov_disc_resp.config_methods);
2314 break;
2315 case EVENT_P2P_SD_REQUEST:
2316 wpas_sd_request(wpa_s, data->p2p_sd_req.freq,
2317 data->p2p_sd_req.sa,
2318 data->p2p_sd_req.dialog_token,
2319 data->p2p_sd_req.update_indic,
2320 data->p2p_sd_req.tlvs,
2321 data->p2p_sd_req.tlvs_len);
2322 break;
2323 case EVENT_P2P_SD_RESPONSE:
2324 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa,
2325 data->p2p_sd_resp.update_indic,
2326 data->p2p_sd_resp.tlvs,
2327 data->p2p_sd_resp.tlvs_len);
2328 break;
2329 #endif /* CONFIG_P2P */
2330 case EVENT_EAPOL_RX:
2331 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
2332 data->eapol_rx.data,
2333 data->eapol_rx.data_len);
2334 break;
2335 case EVENT_SIGNAL_CHANGE:
2336 bgscan_notify_signal_change(
2337 wpa_s, data->signal_change.above_threshold,
2338 data->signal_change.current_signal,
2339 data->signal_change.current_noise,
2340 data->signal_change.current_txrate);
2341 break;
2342 case EVENT_INTERFACE_ENABLED:
2343 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
2344 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
2345 #ifdef CONFIG_AP
2346 if (!wpa_s->ap_iface) {
2347 wpa_supplicant_set_state(wpa_s,
2348 WPA_DISCONNECTED);
2349 wpa_supplicant_req_scan(wpa_s, 0, 0);
2350 } else
2351 wpa_supplicant_set_state(wpa_s,
2352 WPA_COMPLETED);
2353 #else /* CONFIG_AP */
2354 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2355 wpa_supplicant_req_scan(wpa_s, 0, 0);
2356 #endif /* CONFIG_AP */
2357 }
2358 break;
2359 case EVENT_INTERFACE_DISABLED:
2360 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
2361 wpa_supplicant_mark_disassoc(wpa_s);
2362 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2363 break;
2364 case EVENT_CHANNEL_LIST_CHANGED:
2365 if (wpa_s->drv_priv == NULL)
2366 break; /* Ignore event during drv initialization */
2367 #ifdef CONFIG_P2P
2368 wpas_p2p_update_channel_list(wpa_s);
2369 #endif /* CONFIG_P2P */
2370 break;
2371 case EVENT_INTERFACE_UNAVAILABLE:
2372 #ifdef CONFIG_P2P
2373 wpas_p2p_interface_unavailable(wpa_s);
2374 #endif /* CONFIG_P2P */
2375 break;
2376 case EVENT_BEST_CHANNEL:
2377 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
2378 "(%d %d %d)",
2379 data->best_chan.freq_24, data->best_chan.freq_5,
2380 data->best_chan.freq_overall);
2381 wpa_s->best_24_freq = data->best_chan.freq_24;
2382 wpa_s->best_5_freq = data->best_chan.freq_5;
2383 wpa_s->best_overall_freq = data->best_chan.freq_overall;
2384 #ifdef CONFIG_P2P
2385 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
2386 data->best_chan.freq_5,
2387 data->best_chan.freq_overall);
2388 #endif /* CONFIG_P2P */
2389 break;
2390 case EVENT_UNPROT_DEAUTH:
2391 wpa_supplicant_event_unprot_deauth(wpa_s,
2392 &data->unprot_deauth);
2393 break;
2394 case EVENT_UNPROT_DISASSOC:
2395 wpa_supplicant_event_unprot_disassoc(wpa_s,
2396 &data->unprot_disassoc);
2397 break;
2398 case EVENT_STATION_LOW_ACK:
2399 #ifdef CONFIG_AP
2400 if (wpa_s->ap_iface && data)
2401 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
2402 data->low_ack.addr);
2403 #endif /* CONFIG_AP */
2404 break;
2405 case EVENT_IBSS_PEER_LOST:
2406 #ifdef CONFIG_IBSS_RSN
2407 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
2408 #endif /* CONFIG_IBSS_RSN */
2409 break;
2410 case EVENT_DRIVER_GTK_REKEY:
2411 if (os_memcmp(data->driver_gtk_rekey.bssid,
2412 wpa_s->bssid, ETH_ALEN))
2413 break;
2414 if (!wpa_s->wpa)
2415 break;
2416 wpa_sm_update_replay_ctr(wpa_s->wpa,
2417 data->driver_gtk_rekey.replay_ctr);
2418 break;
2419 case EVENT_SCHED_SCAN_STOPPED:
2420 wpa_s->sched_scanning = 0;
2421 wpa_supplicant_notify_scanning(wpa_s, 0);
2422
2423 /*
2424 * If we timed out, start a new sched scan to continue
2425 * searching for more SSIDs.
2426 */
2427 if (wpa_s->sched_scan_timed_out)
2428 wpa_supplicant_req_sched_scan(wpa_s);
2429 break;
2430 case EVENT_WPS_BUTTON_PUSHED:
2431 #ifdef CONFIG_WPS
2432 wpas_wps_start_pbc(wpa_s, NULL, 0);
2433 #endif /* CONFIG_WPS */
2434 break;
2435 default:
2436 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
2437 break;
2438 }
2439 }
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