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[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 (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
74 u8 wpa_ie[80];
75 size_t wpa_ie_len = sizeof(wpa_ie);
76 wpa_supplicant_set_suites(wpa_s, NULL, ssid,
77 wpa_ie, &wpa_ie_len);
78 } else {
79 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
80 }
81
82 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
83 eapol_sm_invalidate_cached_session(wpa_s->eapol);
84 old_ssid = wpa_s->current_ssid;
85 wpa_s->current_ssid = ssid;
86 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
87 wpa_supplicant_initiate_eapol(wpa_s);
88 if (old_ssid != wpa_s->current_ssid)
89 wpas_notify_network_changed(wpa_s);
90
91 return 0;
92 }
93
94
95 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
96 {
97 struct wpa_supplicant *wpa_s = eloop_ctx;
98
99 if (wpa_s->countermeasures) {
100 wpa_s->countermeasures = 0;
101 wpa_drv_set_countermeasures(wpa_s, 0);
102 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
103 wpa_supplicant_req_scan(wpa_s, 0, 0);
104 }
105 }
106
107
108 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
109 {
110 int bssid_changed;
111
112 #ifdef CONFIG_IBSS_RSN
113 ibss_rsn_deinit(wpa_s->ibss_rsn);
114 wpa_s->ibss_rsn = NULL;
115 #endif /* CONFIG_IBSS_RSN */
116
117 #ifdef CONFIG_AP
118 wpa_supplicant_ap_deinit(wpa_s);
119 #endif /* CONFIG_AP */
120
121 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
122 return;
123
124 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
125 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
126 os_memset(wpa_s->bssid, 0, ETH_ALEN);
127 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
128 wpa_s->current_bss = NULL;
129 wpa_s->assoc_freq = 0;
130 #ifdef CONFIG_IEEE80211R
131 #ifdef CONFIG_SME
132 if (wpa_s->sme.ft_ies)
133 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
134 #endif /* CONFIG_SME */
135 #endif /* CONFIG_IEEE80211R */
136
137 if (bssid_changed)
138 wpas_notify_bssid_changed(wpa_s);
139
140 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
141 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
142 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
143 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
144 wpa_s->ap_ies_from_associnfo = 0;
145 }
146
147
148 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
149 {
150 struct wpa_ie_data ie;
151 int pmksa_set = -1;
152 size_t i;
153
154 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
155 ie.pmkid == NULL)
156 return;
157
158 for (i = 0; i < ie.num_pmkid; i++) {
159 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
160 ie.pmkid + i * PMKID_LEN,
161 NULL, NULL, 0);
162 if (pmksa_set == 0) {
163 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
164 break;
165 }
166 }
167
168 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
169 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
170 }
171
172
173 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
174 union wpa_event_data *data)
175 {
176 if (data == NULL) {
177 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
178 "event");
179 return;
180 }
181 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
182 " index=%d preauth=%d",
183 MAC2STR(data->pmkid_candidate.bssid),
184 data->pmkid_candidate.index,
185 data->pmkid_candidate.preauth);
186
187 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
188 data->pmkid_candidate.index,
189 data->pmkid_candidate.preauth);
190 }
191
192
193 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
194 {
195 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
196 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
197 return 0;
198
199 #ifdef IEEE8021X_EAPOL
200 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
201 wpa_s->current_ssid &&
202 !(wpa_s->current_ssid->eapol_flags &
203 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
204 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
205 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
206 * plaintext or static WEP keys). */
207 return 0;
208 }
209 #endif /* IEEE8021X_EAPOL */
210
211 return 1;
212 }
213
214
215 /**
216 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
217 * @wpa_s: pointer to wpa_supplicant data
218 * @ssid: Configuration data for the network
219 * Returns: 0 on success, -1 on failure
220 *
221 * This function is called when starting authentication with a network that is
222 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
223 */
224 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
225 struct wpa_ssid *ssid)
226 {
227 #ifdef IEEE8021X_EAPOL
228 #ifdef PCSC_FUNCS
229 int aka = 0, sim = 0, type;
230
231 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
232 return 0;
233
234 if (ssid->eap.eap_methods == NULL) {
235 sim = 1;
236 aka = 1;
237 } else {
238 struct eap_method_type *eap = ssid->eap.eap_methods;
239 while (eap->vendor != EAP_VENDOR_IETF ||
240 eap->method != EAP_TYPE_NONE) {
241 if (eap->vendor == EAP_VENDOR_IETF) {
242 if (eap->method == EAP_TYPE_SIM)
243 sim = 1;
244 else if (eap->method == EAP_TYPE_AKA)
245 aka = 1;
246 }
247 eap++;
248 }
249 }
250
251 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
252 sim = 0;
253 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL)
254 aka = 0;
255
256 if (!sim && !aka) {
257 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
258 "use SIM, but neither EAP-SIM nor EAP-AKA are "
259 "enabled");
260 return 0;
261 }
262
263 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
264 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
265 if (sim && aka)
266 type = SCARD_TRY_BOTH;
267 else if (aka)
268 type = SCARD_USIM_ONLY;
269 else
270 type = SCARD_GSM_SIM_ONLY;
271
272 wpa_s->scard = scard_init(type);
273 if (wpa_s->scard == NULL) {
274 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
275 "(pcsc-lite)");
276 return -1;
277 }
278 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
279 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
280 #endif /* PCSC_FUNCS */
281 #endif /* IEEE8021X_EAPOL */
282
283 return 0;
284 }
285
286
287 #ifndef CONFIG_NO_SCAN_PROCESSING
288 static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
289 struct wpa_ssid *ssid)
290 {
291 int i, privacy = 0;
292
293 if (ssid->mixed_cell)
294 return 1;
295
296 #ifdef CONFIG_WPS
297 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
298 return 1;
299 #endif /* CONFIG_WPS */
300
301 for (i = 0; i < NUM_WEP_KEYS; i++) {
302 if (ssid->wep_key_len[i]) {
303 privacy = 1;
304 break;
305 }
306 }
307 #ifdef IEEE8021X_EAPOL
308 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
309 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
310 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
311 privacy = 1;
312 #endif /* IEEE8021X_EAPOL */
313
314 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
315 privacy = 1;
316
317 if (bss->caps & IEEE80211_CAP_PRIVACY)
318 return privacy;
319 return !privacy;
320 }
321
322
323 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
324 struct wpa_ssid *ssid,
325 struct wpa_scan_res *bss)
326 {
327 struct wpa_ie_data ie;
328 int proto_match = 0;
329 const u8 *rsn_ie, *wpa_ie;
330 int ret;
331 int wep_ok;
332
333 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
334 if (ret >= 0)
335 return ret;
336
337 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
338 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
339 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
340 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
341 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
342
343 rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
344 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
345 proto_match++;
346
347 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
348 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
349 "failed");
350 break;
351 }
352
353 if (wep_ok &&
354 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
355 {
356 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
357 "in RSN IE");
358 return 1;
359 }
360
361 if (!(ie.proto & ssid->proto)) {
362 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
363 "mismatch");
364 break;
365 }
366
367 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
368 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
369 "cipher mismatch");
370 break;
371 }
372
373 if (!(ie.group_cipher & ssid->group_cipher)) {
374 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
375 "cipher mismatch");
376 break;
377 }
378
379 if (!(ie.key_mgmt & ssid->key_mgmt)) {
380 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
381 "mismatch");
382 break;
383 }
384
385 #ifdef CONFIG_IEEE80211W
386 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
387 ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
388 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
389 "frame protection");
390 break;
391 }
392 #endif /* CONFIG_IEEE80211W */
393
394 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
395 return 1;
396 }
397
398 wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
399 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
400 proto_match++;
401
402 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
403 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
404 "failed");
405 break;
406 }
407
408 if (wep_ok &&
409 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
410 {
411 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
412 "in WPA IE");
413 return 1;
414 }
415
416 if (!(ie.proto & ssid->proto)) {
417 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
418 "mismatch");
419 break;
420 }
421
422 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
423 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
424 "cipher mismatch");
425 break;
426 }
427
428 if (!(ie.group_cipher & ssid->group_cipher)) {
429 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
430 "cipher mismatch");
431 break;
432 }
433
434 if (!(ie.key_mgmt & ssid->key_mgmt)) {
435 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
436 "mismatch");
437 break;
438 }
439
440 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
441 return 1;
442 }
443
444 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
445 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
446 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
447 return 0;
448 }
449
450 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
451 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
452 return 1;
453 }
454
455 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
456 "WPA/WPA2");
457
458 return 0;
459 }
460
461
462 static int freq_allowed(int *freqs, int freq)
463 {
464 int i;
465
466 if (freqs == NULL)
467 return 1;
468
469 for (i = 0; freqs[i]; i++)
470 if (freqs[i] == freq)
471 return 1;
472 return 0;
473 }
474
475
476 static int ht_supported(const struct hostapd_hw_modes *mode)
477 {
478 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) {
479 /*
480 * The driver did not indicate whether it supports HT. Assume
481 * it does to avoid connection issues.
482 */
483 return 1;
484 }
485
486 /*
487 * IEEE Std 802.11n-2009 20.1.1:
488 * An HT non-AP STA shall support all EQM rates for one spatial stream.
489 */
490 return mode->mcs_set[0] == 0xff;
491 }
492
493
494 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_scan_res *bss)
495 {
496 const struct hostapd_hw_modes *mode = NULL, *modes;
497 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
498 const u8 *rate_ie;
499 int i, j, k;
500
501 if (bss->freq == 0)
502 return 1; /* Cannot do matching without knowing band */
503
504 modes = wpa_s->hw.modes;
505 if (modes == NULL) {
506 /*
507 * The driver does not provide any additional information
508 * about the utilized hardware, so allow the connection attempt
509 * to continue.
510 */
511 return 1;
512 }
513
514 for (i = 0; i < wpa_s->hw.num_modes; i++) {
515 for (j = 0; j < modes[i].num_channels; j++) {
516 int freq = modes[i].channels[j].freq;
517 if (freq == bss->freq) {
518 if (mode &&
519 mode->mode == HOSTAPD_MODE_IEEE80211G)
520 break; /* do not allow 802.11b replace
521 * 802.11g */
522 mode = &modes[i];
523 break;
524 }
525 }
526 }
527
528 if (mode == NULL)
529 return 0;
530
531 for (i = 0; i < (int) sizeof(scan_ie); i++) {
532 rate_ie = wpa_scan_get_ie(bss, scan_ie[i]);
533 if (rate_ie == NULL)
534 continue;
535
536 for (j = 2; j < rate_ie[1] + 2; j++) {
537 int flagged = !!(rate_ie[j] & 0x80);
538 int r = (rate_ie[j] & 0x7f) * 5;
539
540 /*
541 * IEEE Std 802.11n-2009 7.3.2.2:
542 * The new BSS Membership selector value is encoded
543 * like a legacy basic rate, but it is not a rate and
544 * only indicates if the BSS members are required to
545 * support the mandatory features of Clause 20 [HT PHY]
546 * in order to join the BSS.
547 */
548 if (flagged && ((rate_ie[j] & 0x7f) ==
549 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
550 if (!ht_supported(mode)) {
551 wpa_dbg(wpa_s, MSG_DEBUG,
552 " hardware does not support "
553 "HT PHY");
554 return 0;
555 }
556 continue;
557 }
558
559 if (!flagged)
560 continue;
561
562 /* check for legacy basic rates */
563 for (k = 0; k < mode->num_rates; k++) {
564 if (mode->rates[k] == r)
565 break;
566 }
567 if (k == mode->num_rates) {
568 /*
569 * IEEE Std 802.11-2007 7.3.2.2 demands that in
570 * order to join a BSS all required rates
571 * have to be supported by the hardware.
572 */
573 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does "
574 "not support required rate %d.%d Mbps",
575 r / 10, r % 10);
576 return 0;
577 }
578 }
579 }
580
581 return 1;
582 }
583
584
585 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
586 int i, struct wpa_scan_res *bss,
587 struct wpa_ssid *group)
588 {
589 const u8 *ssid_;
590 u8 wpa_ie_len, rsn_ie_len, ssid_len;
591 int wpa;
592 struct wpa_blacklist *e;
593 const u8 *ie;
594 struct wpa_ssid *ssid;
595
596 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
597 ssid_ = ie ? ie + 2 : (u8 *) "";
598 ssid_len = ie ? ie[1] : 0;
599
600 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
601 wpa_ie_len = ie ? ie[1] : 0;
602
603 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
604 rsn_ie_len = ie ? ie[1] : 0;
605
606 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
607 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
608 i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len),
609 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
610 wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
611
612 e = wpa_blacklist_get(wpa_s, bss->bssid);
613 if (e) {
614 int limit = 1;
615 if (wpa_supplicant_enabled_networks(wpa_s->conf) == 1) {
616 /*
617 * When only a single network is enabled, we can
618 * trigger blacklisting on the first failure. This
619 * should not be done with multiple enabled networks to
620 * avoid getting forced to move into a worse ESS on
621 * single error if there are no other BSSes of the
622 * current ESS.
623 */
624 limit = 0;
625 }
626 if (e->count > limit) {
627 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
628 "(count=%d limit=%d)", e->count, limit);
629 return NULL;
630 }
631 }
632
633 if (ssid_len == 0) {
634 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
635 return NULL;
636 }
637
638 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
639
640 for (ssid = group; ssid; ssid = ssid->pnext) {
641 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
642
643 if (ssid->disabled) {
644 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
645 continue;
646 }
647
648 #ifdef CONFIG_WPS
649 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
650 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
651 "(WPS)");
652 continue;
653 }
654
655 if (wpa && ssid->ssid_len == 0 &&
656 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
657 check_ssid = 0;
658
659 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
660 /* Only allow wildcard SSID match if an AP
661 * advertises active WPS operation that matches
662 * with our mode. */
663 check_ssid = 1;
664 if (ssid->ssid_len == 0 &&
665 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
666 check_ssid = 0;
667 }
668 #endif /* CONFIG_WPS */
669
670 if (ssid->bssid_set && ssid->ssid_len == 0 &&
671 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
672 check_ssid = 0;
673
674 if (check_ssid &&
675 (ssid_len != ssid->ssid_len ||
676 os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
677 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
678 continue;
679 }
680
681 if (ssid->bssid_set &&
682 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
683 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
684 continue;
685 }
686
687 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
688 continue;
689
690 if (!wpa &&
691 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
692 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
693 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
694 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
695 "not allowed");
696 continue;
697 }
698
699 if (!wpa_supplicant_match_privacy(bss, ssid)) {
700 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
701 "mismatch");
702 continue;
703 }
704
705 if (bss->caps & IEEE80211_CAP_IBSS) {
706 wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) "
707 "network");
708 continue;
709 }
710
711 if (!freq_allowed(ssid->freq_list, bss->freq)) {
712 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
713 "allowed");
714 continue;
715 }
716
717 if (!rate_match(wpa_s, bss)) {
718 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
719 "not match");
720 continue;
721 }
722
723 #ifdef CONFIG_P2P
724 /*
725 * TODO: skip the AP if its P2P IE has Group Formation
726 * bit set in the P2P Group Capability Bitmap and we
727 * are not in Group Formation with that device.
728 */
729 #endif /* CONFIG_P2P */
730
731 /* Matching configuration found */
732 return ssid;
733 }
734
735 /* No matching configuration found */
736 return NULL;
737 }
738
739
740 static struct wpa_bss *
741 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
742 struct wpa_scan_results *scan_res,
743 struct wpa_ssid *group,
744 struct wpa_ssid **selected_ssid)
745 {
746 size_t i;
747
748 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
749 group->priority);
750
751 for (i = 0; i < scan_res->num; i++) {
752 struct wpa_scan_res *bss = scan_res->res[i];
753 const u8 *ie, *ssid;
754 u8 ssid_len;
755
756 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
757 if (!*selected_ssid)
758 continue;
759
760 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
761 ssid = ie ? ie + 2 : (u8 *) "";
762 ssid_len = ie ? ie[1] : 0;
763
764 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
765 " ssid='%s'",
766 MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len));
767 return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len);
768 }
769
770 return NULL;
771 }
772
773
774 static struct wpa_bss *
775 wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
776 struct wpa_scan_results *scan_res,
777 struct wpa_ssid **selected_ssid)
778 {
779 struct wpa_bss *selected = NULL;
780 int prio;
781
782 while (selected == NULL) {
783 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
784 selected = wpa_supplicant_select_bss(
785 wpa_s, scan_res, wpa_s->conf->pssid[prio],
786 selected_ssid);
787 if (selected)
788 break;
789 }
790
791 if (selected == NULL && wpa_s->blacklist) {
792 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
793 "blacklist and try again");
794 wpa_blacklist_clear(wpa_s);
795 wpa_s->blacklist_cleared++;
796 } else if (selected == NULL)
797 break;
798 }
799
800 return selected;
801 }
802
803
804 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
805 int timeout_sec, int timeout_usec)
806 {
807 if (!wpa_supplicant_enabled_networks(wpa_s->conf)) {
808 /*
809 * No networks are enabled; short-circuit request so
810 * we don't wait timeout seconds before transitioning
811 * to INACTIVE state.
812 */
813 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
814 return;
815 }
816 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
817 }
818
819
820 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
821 struct wpa_bss *selected,
822 struct wpa_ssid *ssid)
823 {
824 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
825 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
826 "PBC session overlap");
827 #ifdef CONFIG_P2P
828 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
829 return -1;
830 #endif /* CONFIG_P2P */
831
832 #ifdef CONFIG_WPS
833 wpas_wps_cancel(wpa_s);
834 #endif /* CONFIG_WPS */
835 return -1;
836 }
837
838 /*
839 * Do not trigger new association unless the BSSID has changed or if
840 * reassociation is requested. If we are in process of associating with
841 * the selected BSSID, do not trigger new attempt.
842 */
843 if (wpa_s->reassociate ||
844 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
845 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
846 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
847 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
848 0))) {
849 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
850 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
851 return 0;
852 }
853 wpa_msg(wpa_s, MSG_DEBUG, "Request association: "
854 "reassociate: %d selected: "MACSTR " bssid: " MACSTR
855 " pending: " MACSTR " wpa_state: %s",
856 wpa_s->reassociate, MAC2STR(selected->bssid),
857 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
858 wpa_supplicant_state_txt(wpa_s->wpa_state));
859 wpa_supplicant_associate(wpa_s, selected, ssid);
860 } else {
861 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the "
862 "selected AP");
863 }
864
865 return 0;
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 #ifdef CONFIG_P2P
1009 if (wpa_s->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
1010 wpa_s->global->p2p != NULL) {
1011 wpa_s->p2p_cb_on_scan_complete = 0;
1012 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
1013 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
1014 "stopped scan processing");
1015 return -1;
1016 }
1017 }
1018 #endif /* CONFIG_P2P */
1019
1020 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1021 data ? &data->scan_info :
1022 NULL, 1);
1023 if (scan_res == NULL) {
1024 if (wpa_s->conf->ap_scan == 2 || ap)
1025 return -1;
1026 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1027 "scanning again");
1028 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1029 return -1;
1030 }
1031
1032 #ifndef CONFIG_NO_RANDOM_POOL
1033 size_t i, num;
1034 num = scan_res->num;
1035 if (num > 10)
1036 num = 10;
1037 for (i = 0; i < num; i++) {
1038 u8 buf[5];
1039 struct wpa_scan_res *res = scan_res->res[i];
1040 buf[0] = res->bssid[5];
1041 buf[1] = res->qual & 0xff;
1042 buf[2] = res->noise & 0xff;
1043 buf[3] = res->level & 0xff;
1044 buf[4] = res->tsf & 0xff;
1045 random_add_randomness(buf, sizeof(buf));
1046 }
1047 #endif /* CONFIG_NO_RANDOM_POOL */
1048
1049 if (wpa_s->scan_res_handler) {
1050 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1051 struct wpa_scan_results *scan_res);
1052
1053 scan_res_handler = wpa_s->scan_res_handler;
1054 wpa_s->scan_res_handler = NULL;
1055 scan_res_handler(wpa_s, scan_res);
1056
1057 wpa_scan_results_free(scan_res);
1058 return 0;
1059 }
1060
1061 if (ap) {
1062 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1063 #ifdef CONFIG_AP
1064 if (wpa_s->ap_iface->scan_cb)
1065 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1066 #endif /* CONFIG_AP */
1067 wpa_scan_results_free(scan_res);
1068 return 0;
1069 }
1070
1071 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
1072 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1073 wpas_notify_scan_results(wpa_s);
1074
1075 wpas_notify_scan_done(wpa_s, 1);
1076
1077 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
1078 wpa_scan_results_free(scan_res);
1079 return 0;
1080 }
1081
1082 if (wpa_s->disconnected) {
1083 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1084 wpa_scan_results_free(scan_res);
1085 return 0;
1086 }
1087
1088 if (!wpas_driver_bss_selection(wpa_s) &&
1089 bgscan_notify_scan(wpa_s, scan_res) == 1) {
1090 wpa_scan_results_free(scan_res);
1091 return 0;
1092 }
1093
1094 selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
1095
1096 if (selected) {
1097 int skip;
1098 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid,
1099 scan_res);
1100 wpa_scan_results_free(scan_res);
1101 if (skip) {
1102 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1103 return 0;
1104 }
1105
1106 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1107 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1108 return -1;
1109 }
1110 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1111 } else {
1112 wpa_scan_results_free(scan_res);
1113 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1114 ssid = wpa_supplicant_pick_new_network(wpa_s);
1115 if (ssid) {
1116 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1117 wpa_supplicant_associate(wpa_s, NULL, ssid);
1118 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1119 } else {
1120 int timeout_sec = wpa_s->scan_interval;
1121 int timeout_usec = 0;
1122 #ifdef CONFIG_P2P
1123 if (wpa_s->p2p_in_provisioning) {
1124 /*
1125 * Use shorter wait during P2P Provisioning
1126 * state to speed up group formation.
1127 */
1128 timeout_sec = 0;
1129 timeout_usec = 250000;
1130 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1131 timeout_usec);
1132 return 0;
1133 }
1134 #endif /* CONFIG_P2P */
1135 if (wpa_supplicant_req_sched_scan(wpa_s))
1136 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1137 timeout_usec);
1138 }
1139 }
1140 return 0;
1141 }
1142
1143
1144 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1145 union wpa_event_data *data)
1146 {
1147 const char *rn, *rn2;
1148 struct wpa_supplicant *ifs;
1149
1150 if (_wpa_supplicant_event_scan_results(wpa_s, data) < 0) {
1151 /*
1152 * If no scan results could be fetched, then no need to
1153 * notify those interfaces that did not actually request
1154 * this scan.
1155 */
1156 return;
1157 }
1158
1159 /*
1160 * Check other interfaces to see if they have the same radio-name. If
1161 * so, they get updated with this same scan info.
1162 */
1163 if (!wpa_s->driver->get_radio_name)
1164 return;
1165
1166 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
1167 if (rn == NULL || rn[0] == '\0')
1168 return;
1169
1170 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces "
1171 "sharing same radio (%s) in event_scan_results", rn);
1172
1173 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
1174 if (ifs == wpa_s || !ifs->driver->get_radio_name)
1175 continue;
1176
1177 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
1178 if (rn2 && os_strcmp(rn, rn2) == 0) {
1179 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1180 "sibling", ifs->ifname);
1181 _wpa_supplicant_event_scan_results(ifs, data);
1182 }
1183 }
1184 }
1185
1186 #endif /* CONFIG_NO_SCAN_PROCESSING */
1187
1188
1189 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1190 union wpa_event_data *data)
1191 {
1192 int l, len, found = 0, wpa_found, rsn_found;
1193 const u8 *p;
1194
1195 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1196 if (data->assoc_info.req_ies)
1197 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1198 data->assoc_info.req_ies_len);
1199 if (data->assoc_info.resp_ies) {
1200 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1201 data->assoc_info.resp_ies_len);
1202 #ifdef CONFIG_TDLS
1203 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1204 data->assoc_info.resp_ies_len);
1205 #endif /* CONFIG_TDLS */
1206 }
1207 if (data->assoc_info.beacon_ies)
1208 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1209 data->assoc_info.beacon_ies,
1210 data->assoc_info.beacon_ies_len);
1211 if (data->assoc_info.freq)
1212 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1213 data->assoc_info.freq);
1214
1215 p = data->assoc_info.req_ies;
1216 l = data->assoc_info.req_ies_len;
1217
1218 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1219 while (p && l >= 2) {
1220 len = p[1] + 2;
1221 if (len > l) {
1222 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1223 p, l);
1224 break;
1225 }
1226 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1227 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1228 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1229 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1230 break;
1231 found = 1;
1232 wpa_find_assoc_pmkid(wpa_s);
1233 break;
1234 }
1235 l -= len;
1236 p += len;
1237 }
1238 if (!found && data->assoc_info.req_ies)
1239 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1240
1241 #ifdef CONFIG_IEEE80211R
1242 #ifdef CONFIG_SME
1243 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1244 u8 bssid[ETH_ALEN];
1245 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1246 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1247 data->assoc_info.resp_ies,
1248 data->assoc_info.resp_ies_len,
1249 bssid) < 0) {
1250 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1251 "Reassociation Response failed");
1252 wpa_supplicant_deauthenticate(
1253 wpa_s, WLAN_REASON_INVALID_IE);
1254 return -1;
1255 }
1256 }
1257
1258 p = data->assoc_info.resp_ies;
1259 l = data->assoc_info.resp_ies_len;
1260
1261 #ifdef CONFIG_WPS_STRICT
1262 if (p && wpa_s->current_ssid &&
1263 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1264 struct wpabuf *wps;
1265 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1266 if (wps == NULL) {
1267 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1268 "include WPS IE in (Re)Association Response");
1269 return -1;
1270 }
1271
1272 if (wps_validate_assoc_resp(wps) < 0) {
1273 wpabuf_free(wps);
1274 wpa_supplicant_deauthenticate(
1275 wpa_s, WLAN_REASON_INVALID_IE);
1276 return -1;
1277 }
1278 wpabuf_free(wps);
1279 }
1280 #endif /* CONFIG_WPS_STRICT */
1281
1282 /* Go through the IEs and make a copy of the MDIE, if present. */
1283 while (p && l >= 2) {
1284 len = p[1] + 2;
1285 if (len > l) {
1286 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1287 p, l);
1288 break;
1289 }
1290 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1291 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1292 wpa_s->sme.ft_used = 1;
1293 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1294 MOBILITY_DOMAIN_ID_LEN);
1295 break;
1296 }
1297 l -= len;
1298 p += len;
1299 }
1300 #endif /* CONFIG_SME */
1301
1302 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1303 data->assoc_info.resp_ies_len);
1304 #endif /* CONFIG_IEEE80211R */
1305
1306 /* WPA/RSN IE from Beacon/ProbeResp */
1307 p = data->assoc_info.beacon_ies;
1308 l = data->assoc_info.beacon_ies_len;
1309
1310 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1311 */
1312 wpa_found = rsn_found = 0;
1313 while (p && l >= 2) {
1314 len = p[1] + 2;
1315 if (len > l) {
1316 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1317 p, l);
1318 break;
1319 }
1320 if (!wpa_found &&
1321 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1322 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1323 wpa_found = 1;
1324 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1325 }
1326
1327 if (!rsn_found &&
1328 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1329 rsn_found = 1;
1330 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1331 }
1332
1333 l -= len;
1334 p += len;
1335 }
1336
1337 if (!wpa_found && data->assoc_info.beacon_ies)
1338 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1339 if (!rsn_found && data->assoc_info.beacon_ies)
1340 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1341 if (wpa_found || rsn_found)
1342 wpa_s->ap_ies_from_associnfo = 1;
1343
1344 if (wpa_s->assoc_freq && data->assoc_info.freq &&
1345 wpa_s->assoc_freq != data->assoc_info.freq) {
1346 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1347 "%u to %u MHz",
1348 wpa_s->assoc_freq, data->assoc_info.freq);
1349 wpa_supplicant_update_scan_results(wpa_s);
1350 }
1351
1352 wpa_s->assoc_freq = data->assoc_info.freq;
1353
1354 return 0;
1355 }
1356
1357
1358 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1359 union wpa_event_data *data)
1360 {
1361 u8 bssid[ETH_ALEN];
1362 int ft_completed;
1363 int bssid_changed;
1364 struct wpa_driver_capa capa;
1365
1366 #ifdef CONFIG_AP
1367 if (wpa_s->ap_iface) {
1368 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1369 data->assoc_info.addr,
1370 data->assoc_info.req_ies,
1371 data->assoc_info.req_ies_len,
1372 data->assoc_info.reassoc);
1373 return;
1374 }
1375 #endif /* CONFIG_AP */
1376
1377 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1378 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1379 return;
1380
1381 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
1382 if (wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
1383 os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
1384 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1385 MACSTR, MAC2STR(bssid));
1386 random_add_randomness(bssid, ETH_ALEN);
1387 bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN);
1388 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1389 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1390 if (bssid_changed)
1391 wpas_notify_bssid_changed(wpa_s);
1392
1393 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1394 wpa_clear_keys(wpa_s, bssid);
1395 }
1396 if (wpa_supplicant_select_config(wpa_s) < 0) {
1397 wpa_supplicant_disassociate(
1398 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1399 return;
1400 }
1401 if (wpa_s->current_ssid) {
1402 struct wpa_bss *bss = NULL;
1403 struct wpa_ssid *ssid = wpa_s->current_ssid;
1404 if (ssid->ssid_len > 0)
1405 bss = wpa_bss_get(wpa_s, bssid,
1406 ssid->ssid, ssid->ssid_len);
1407 if (!bss)
1408 bss = wpa_bss_get_bssid(wpa_s, bssid);
1409 if (bss)
1410 wpa_s->current_bss = bss;
1411 }
1412 }
1413
1414 #ifdef CONFIG_SME
1415 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1416 wpa_s->sme.prev_bssid_set = 1;
1417 #endif /* CONFIG_SME */
1418
1419 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1420 if (wpa_s->current_ssid) {
1421 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1422 * initialized before association, but for other modes,
1423 * initialize PC/SC here, if the current configuration needs
1424 * smartcard or SIM/USIM. */
1425 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1426 }
1427 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1428 if (wpa_s->l2)
1429 l2_packet_notify_auth_start(wpa_s->l2);
1430
1431 /*
1432 * Set portEnabled first to FALSE in order to get EAP state machine out
1433 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1434 * state machine may transit to AUTHENTICATING state based on obsolete
1435 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1436 * AUTHENTICATED without ever giving chance to EAP state machine to
1437 * reset the state.
1438 */
1439 if (!ft_completed) {
1440 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1441 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1442 }
1443 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1444 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1445 /* 802.1X::portControl = Auto */
1446 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1447 wpa_s->eapol_received = 0;
1448 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1449 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1450 (wpa_s->current_ssid &&
1451 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1452 wpa_supplicant_cancel_auth_timeout(wpa_s);
1453 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1454 } else if (!ft_completed) {
1455 /* Timeout for receiving the first EAPOL packet */
1456 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1457 }
1458 wpa_supplicant_cancel_scan(wpa_s);
1459
1460 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1461 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1462 /*
1463 * We are done; the driver will take care of RSN 4-way
1464 * handshake.
1465 */
1466 wpa_supplicant_cancel_auth_timeout(wpa_s);
1467 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1468 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1469 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1470 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1471 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1472 /*
1473 * The driver will take care of RSN 4-way handshake, so we need
1474 * to allow EAPOL supplicant to complete its work without
1475 * waiting for WPA supplicant.
1476 */
1477 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1478 } else if (ft_completed) {
1479 /*
1480 * FT protocol completed - make sure EAPOL state machine ends
1481 * up in authenticated.
1482 */
1483 wpa_supplicant_cancel_auth_timeout(wpa_s);
1484 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1485 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1486 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1487 }
1488
1489 if (wpa_s->pending_eapol_rx) {
1490 struct os_time now, age;
1491 os_get_time(&now);
1492 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1493 if (age.sec == 0 && age.usec < 100000 &&
1494 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1495 0) {
1496 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
1497 "frame that was received just before "
1498 "association notification");
1499 wpa_supplicant_rx_eapol(
1500 wpa_s, wpa_s->pending_eapol_rx_src,
1501 wpabuf_head(wpa_s->pending_eapol_rx),
1502 wpabuf_len(wpa_s->pending_eapol_rx));
1503 }
1504 wpabuf_free(wpa_s->pending_eapol_rx);
1505 wpa_s->pending_eapol_rx = NULL;
1506 }
1507
1508 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1509 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
1510 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1511 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
1512 /* Set static WEP keys again */
1513 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
1514 }
1515
1516 #ifdef CONFIG_IBSS_RSN
1517 if (wpa_s->current_ssid &&
1518 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
1519 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
1520 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
1521 wpa_s->ibss_rsn == NULL) {
1522 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
1523 if (!wpa_s->ibss_rsn) {
1524 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
1525 wpa_supplicant_deauthenticate(
1526 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1527 return;
1528 }
1529
1530 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
1531 }
1532 #endif /* CONFIG_IBSS_RSN */
1533 }
1534
1535
1536 static int disconnect_reason_recoverable(u16 reason_code)
1537 {
1538 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
1539 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
1540 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
1541 }
1542
1543
1544 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
1545 u16 reason_code)
1546 {
1547 const u8 *bssid;
1548 int authenticating;
1549 u8 prev_pending_bssid[ETH_ALEN];
1550 struct wpa_bss *fast_reconnect = NULL;
1551 struct wpa_ssid *fast_reconnect_ssid = NULL;
1552
1553 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
1554 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
1555
1556 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1557 /*
1558 * At least Host AP driver and a Prism3 card seemed to be
1559 * generating streams of disconnected events when configuring
1560 * IBSS for WPA-None. Ignore them for now.
1561 */
1562 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
1563 "IBSS/WPA-None mode");
1564 return;
1565 }
1566
1567 if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
1568 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1569 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
1570 "pre-shared key may be incorrect");
1571 }
1572 if (!wpa_s->auto_reconnect_disabled ||
1573 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
1574 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
1575 "reconnect (wps=%d wpa_state=%d)",
1576 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
1577 wpa_s->wpa_state);
1578 if (wpa_s->wpa_state == WPA_COMPLETED &&
1579 wpa_s->current_ssid &&
1580 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
1581 disconnect_reason_recoverable(reason_code)) {
1582 /*
1583 * It looks like the AP has dropped association with
1584 * us, but could allow us to get back in. Try to
1585 * reconnect to the same BSS without full scan to save
1586 * time for some common cases.
1587 */
1588 fast_reconnect = wpa_s->current_bss;
1589 fast_reconnect_ssid = wpa_s->current_ssid;
1590 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
1591 wpa_supplicant_req_scan(wpa_s, 0, 100000);
1592 else
1593 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
1594 "immediate scan");
1595 } else {
1596 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
1597 "try to re-connect");
1598 wpa_s->reassociate = 0;
1599 wpa_s->disconnected = 1;
1600 }
1601 bssid = wpa_s->bssid;
1602 if (is_zero_ether_addr(bssid))
1603 bssid = wpa_s->pending_bssid;
1604 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
1605 wpas_connection_failed(wpa_s, bssid);
1606 wpa_sm_notify_disassoc(wpa_s->wpa);
1607 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
1608 " reason=%d",
1609 MAC2STR(bssid), reason_code);
1610 if (wpa_supplicant_dynamic_keys(wpa_s)) {
1611 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
1612 wpa_s->keys_cleared = 0;
1613 wpa_clear_keys(wpa_s, wpa_s->bssid);
1614 }
1615 wpa_supplicant_mark_disassoc(wpa_s);
1616
1617 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1618 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
1619
1620 if (fast_reconnect) {
1621 #ifndef CONFIG_NO_SCAN_PROCESSING
1622 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
1623 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
1624 fast_reconnect_ssid) < 0) {
1625 /* Recover through full scan */
1626 wpa_supplicant_req_scan(wpa_s, 0, 100000);
1627 }
1628 #endif /* CONFIG_NO_SCAN_PROCESSING */
1629 }
1630 }
1631
1632
1633 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1634 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
1635 {
1636 struct wpa_supplicant *wpa_s = eloop_ctx;
1637
1638 if (!wpa_s->pending_mic_error_report)
1639 return;
1640
1641 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
1642 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
1643 wpa_s->pending_mic_error_report = 0;
1644 }
1645 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1646
1647
1648 static void
1649 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
1650 union wpa_event_data *data)
1651 {
1652 int pairwise;
1653 struct os_time t;
1654
1655 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
1656 pairwise = (data && data->michael_mic_failure.unicast);
1657 os_get_time(&t);
1658 if ((wpa_s->last_michael_mic_error &&
1659 t.sec - wpa_s->last_michael_mic_error <= 60) ||
1660 wpa_s->pending_mic_error_report) {
1661 if (wpa_s->pending_mic_error_report) {
1662 /*
1663 * Send the pending MIC error report immediately since
1664 * we are going to start countermeasures and AP better
1665 * do the same.
1666 */
1667 wpa_sm_key_request(wpa_s->wpa, 1,
1668 wpa_s->pending_mic_error_pairwise);
1669 }
1670
1671 /* Send the new MIC error report immediately since we are going
1672 * to start countermeasures and AP better do the same.
1673 */
1674 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1675
1676 /* initialize countermeasures */
1677 wpa_s->countermeasures = 1;
1678 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
1679
1680 /*
1681 * Need to wait for completion of request frame. We do not get
1682 * any callback for the message completion, so just wait a
1683 * short while and hope for the best. */
1684 os_sleep(0, 10000);
1685
1686 wpa_drv_set_countermeasures(wpa_s, 1);
1687 wpa_supplicant_deauthenticate(wpa_s,
1688 WLAN_REASON_MICHAEL_MIC_FAILURE);
1689 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
1690 wpa_s, NULL);
1691 eloop_register_timeout(60, 0,
1692 wpa_supplicant_stop_countermeasures,
1693 wpa_s, NULL);
1694 /* TODO: mark the AP rejected for 60 second. STA is
1695 * allowed to associate with another AP.. */
1696 } else {
1697 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1698 if (wpa_s->mic_errors_seen) {
1699 /*
1700 * Reduce the effectiveness of Michael MIC error
1701 * reports as a means for attacking against TKIP if
1702 * more than one MIC failure is noticed with the same
1703 * PTK. We delay the transmission of the reports by a
1704 * random time between 0 and 60 seconds in order to
1705 * force the attacker wait 60 seconds before getting
1706 * the information on whether a frame resulted in a MIC
1707 * failure.
1708 */
1709 u8 rval[4];
1710 int sec;
1711
1712 if (os_get_random(rval, sizeof(rval)) < 0)
1713 sec = os_random() % 60;
1714 else
1715 sec = WPA_GET_BE32(rval) % 60;
1716 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
1717 "report %d seconds", sec);
1718 wpa_s->pending_mic_error_report = 1;
1719 wpa_s->pending_mic_error_pairwise = pairwise;
1720 eloop_cancel_timeout(
1721 wpa_supplicant_delayed_mic_error_report,
1722 wpa_s, NULL);
1723 eloop_register_timeout(
1724 sec, os_random() % 1000000,
1725 wpa_supplicant_delayed_mic_error_report,
1726 wpa_s, NULL);
1727 } else {
1728 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1729 }
1730 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1731 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1732 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1733 }
1734 wpa_s->last_michael_mic_error = t.sec;
1735 wpa_s->mic_errors_seen++;
1736 }
1737
1738
1739 #ifdef CONFIG_TERMINATE_ONLASTIF
1740 static int any_interfaces(struct wpa_supplicant *head)
1741 {
1742 struct wpa_supplicant *wpa_s;
1743
1744 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
1745 if (!wpa_s->interface_removed)
1746 return 1;
1747 return 0;
1748 }
1749 #endif /* CONFIG_TERMINATE_ONLASTIF */
1750
1751
1752 static void
1753 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
1754 union wpa_event_data *data)
1755 {
1756 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
1757 return;
1758
1759 switch (data->interface_status.ievent) {
1760 case EVENT_INTERFACE_ADDED:
1761 if (!wpa_s->interface_removed)
1762 break;
1763 wpa_s->interface_removed = 0;
1764 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
1765 if (wpa_supplicant_driver_init(wpa_s) < 0) {
1766 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
1767 "driver after interface was added");
1768 }
1769 break;
1770 case EVENT_INTERFACE_REMOVED:
1771 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
1772 wpa_s->interface_removed = 1;
1773 wpa_supplicant_mark_disassoc(wpa_s);
1774 l2_packet_deinit(wpa_s->l2);
1775 wpa_s->l2 = NULL;
1776 #ifdef CONFIG_IBSS_RSN
1777 ibss_rsn_deinit(wpa_s->ibss_rsn);
1778 wpa_s->ibss_rsn = NULL;
1779 #endif /* CONFIG_IBSS_RSN */
1780 #ifdef CONFIG_TERMINATE_ONLASTIF
1781 /* check if last interface */
1782 if (!any_interfaces(wpa_s->global->ifaces))
1783 eloop_terminate();
1784 #endif /* CONFIG_TERMINATE_ONLASTIF */
1785 break;
1786 }
1787 }
1788
1789
1790 #ifdef CONFIG_PEERKEY
1791 static void
1792 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
1793 union wpa_event_data *data)
1794 {
1795 if (data == NULL)
1796 return;
1797 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
1798 }
1799 #endif /* CONFIG_PEERKEY */
1800
1801
1802 #ifdef CONFIG_TDLS
1803 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
1804 union wpa_event_data *data)
1805 {
1806 if (data == NULL)
1807 return;
1808 switch (data->tdls.oper) {
1809 case TDLS_REQUEST_SETUP:
1810 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
1811 break;
1812 case TDLS_REQUEST_TEARDOWN:
1813 wpa_tdls_send_teardown(wpa_s->wpa, data->tdls.peer,
1814 data->tdls.reason_code);
1815 break;
1816 }
1817 }
1818 #endif /* CONFIG_TDLS */
1819
1820
1821 #ifdef CONFIG_IEEE80211R
1822 static void
1823 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
1824 union wpa_event_data *data)
1825 {
1826 if (data == NULL)
1827 return;
1828
1829 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
1830 data->ft_ies.ies_len,
1831 data->ft_ies.ft_action,
1832 data->ft_ies.target_ap,
1833 data->ft_ies.ric_ies,
1834 data->ft_ies.ric_ies_len) < 0) {
1835 /* TODO: prevent MLME/driver from trying to associate? */
1836 }
1837 }
1838 #endif /* CONFIG_IEEE80211R */
1839
1840
1841 #ifdef CONFIG_IBSS_RSN
1842 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
1843 union wpa_event_data *data)
1844 {
1845 struct wpa_ssid *ssid;
1846 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1847 return;
1848 if (data == NULL)
1849 return;
1850 ssid = wpa_s->current_ssid;
1851 if (ssid == NULL)
1852 return;
1853 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
1854 return;
1855
1856 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
1857 }
1858 #endif /* CONFIG_IBSS_RSN */
1859
1860
1861 #ifdef CONFIG_IEEE80211R
1862 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
1863 size_t len)
1864 {
1865 const u8 *sta_addr, *target_ap_addr;
1866 u16 status;
1867
1868 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
1869 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1870 return; /* only SME case supported for now */
1871 if (len < 1 + 2 * ETH_ALEN + 2)
1872 return;
1873 if (data[0] != 2)
1874 return; /* Only FT Action Response is supported for now */
1875 sta_addr = data + 1;
1876 target_ap_addr = data + 1 + ETH_ALEN;
1877 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
1878 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
1879 MACSTR " TargetAP " MACSTR " status %u",
1880 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
1881
1882 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
1883 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
1884 " in FT Action Response", MAC2STR(sta_addr));
1885 return;
1886 }
1887
1888 if (status) {
1889 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
1890 "failure (status code %d)", status);
1891 /* TODO: report error to FT code(?) */
1892 return;
1893 }
1894
1895 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
1896 len - (1 + 2 * ETH_ALEN + 2), 1,
1897 target_ap_addr, NULL, 0) < 0)
1898 return;
1899
1900 #ifdef CONFIG_SME
1901 {
1902 struct wpa_bss *bss;
1903 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
1904 if (bss)
1905 wpa_s->sme.freq = bss->freq;
1906 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
1907 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
1908 WLAN_AUTH_FT);
1909 }
1910 #endif /* CONFIG_SME */
1911 }
1912 #endif /* CONFIG_IEEE80211R */
1913
1914
1915 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
1916 struct unprot_deauth *e)
1917 {
1918 #ifdef CONFIG_IEEE80211W
1919 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
1920 "dropped: " MACSTR " -> " MACSTR
1921 " (reason code %u)",
1922 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
1923 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
1924 #endif /* CONFIG_IEEE80211W */
1925 }
1926
1927
1928 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
1929 struct unprot_disassoc *e)
1930 {
1931 #ifdef CONFIG_IEEE80211W
1932 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
1933 "dropped: " MACSTR " -> " MACSTR
1934 " (reason code %u)",
1935 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
1936 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
1937 #endif /* CONFIG_IEEE80211W */
1938 }
1939
1940
1941 static void wnm_action_rx(struct wpa_supplicant *wpa_s, struct rx_action *rx)
1942 {
1943 u8 action, mode;
1944 const u8 *pos, *end;
1945
1946 if (rx->data == NULL || rx->len == 0)
1947 return;
1948
1949 pos = rx->data;
1950 end = pos + rx->len;
1951 action = *pos++;
1952
1953 wpa_printf(MSG_DEBUG, "WNM: RX action %u from " MACSTR,
1954 action, MAC2STR(rx->sa));
1955 switch (action) {
1956 case WNM_BSS_TRANS_MGMT_REQ:
1957 if (pos + 5 > end)
1958 break;
1959 wpa_printf(MSG_DEBUG, "WNM: BSS Transition Management "
1960 "Request: dialog_token=%u request_mode=0x%x "
1961 "disassoc_timer=%u validity_interval=%u",
1962 pos[0], pos[1], WPA_GET_LE16(pos + 2), pos[4]);
1963 mode = pos[1];
1964 pos += 5;
1965 if (mode & 0x08)
1966 pos += 12; /* BSS Termination Duration */
1967 if (mode & 0x10) {
1968 char url[256];
1969 if (pos + 1 > end || pos + 1 + pos[0] > end) {
1970 wpa_printf(MSG_DEBUG, "WNM: Invalid BSS "
1971 "Transition Management Request "
1972 "(URL)");
1973 break;
1974 }
1975 os_memcpy(url, pos + 1, pos[0]);
1976 url[pos[0]] = '\0';
1977 wpa_msg(wpa_s, MSG_INFO, "WNM: ESS Disassociation "
1978 "Imminent - session_info_url=%s", url);
1979 }
1980 break;
1981 }
1982 }
1983
1984
1985 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
1986 union wpa_event_data *data)
1987 {
1988 struct wpa_supplicant *wpa_s = ctx;
1989 u16 reason_code = 0;
1990
1991 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
1992 event != EVENT_INTERFACE_ENABLED &&
1993 event != EVENT_INTERFACE_STATUS) {
1994 wpa_dbg(wpa_s, MSG_DEBUG,
1995 "Ignore event %s (%d) while interface is disabled",
1996 event_to_string(event), event);
1997 return;
1998 }
1999
2000 wpa_dbg(wpa_s, MSG_DEBUG, "Event %s (%d) received",
2001 event_to_string(event), event);
2002
2003 switch (event) {
2004 case EVENT_AUTH:
2005 sme_event_auth(wpa_s, data);
2006 break;
2007 case EVENT_ASSOC:
2008 wpa_supplicant_event_assoc(wpa_s, data);
2009 break;
2010 case EVENT_DISASSOC:
2011 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2012 if (data) {
2013 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u",
2014 data->disassoc_info.reason_code);
2015 if (data->disassoc_info.addr)
2016 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2017 MAC2STR(data->disassoc_info.addr));
2018 }
2019 #ifdef CONFIG_AP
2020 if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
2021 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2022 data->disassoc_info.addr);
2023 break;
2024 }
2025 #endif /* CONFIG_AP */
2026 if (data) {
2027 reason_code = data->disassoc_info.reason_code;
2028 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2029 data->disassoc_info.ie,
2030 data->disassoc_info.ie_len);
2031 #ifdef CONFIG_P2P
2032 wpas_p2p_disassoc_notif(
2033 wpa_s, data->disassoc_info.addr, reason_code,
2034 data->disassoc_info.ie,
2035 data->disassoc_info.ie_len);
2036 #endif /* CONFIG_P2P */
2037 }
2038 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2039 sme_event_disassoc(wpa_s, data);
2040 /* fall through */
2041 case EVENT_DEAUTH:
2042 if (event == EVENT_DEAUTH) {
2043 wpa_dbg(wpa_s, MSG_DEBUG,
2044 "Deauthentication notification");
2045 if (data) {
2046 reason_code = data->deauth_info.reason_code;
2047 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u",
2048 data->deauth_info.reason_code);
2049 if (data->deauth_info.addr) {
2050 wpa_dbg(wpa_s, MSG_DEBUG, " * address "
2051 MACSTR,
2052 MAC2STR(data->deauth_info.
2053 addr));
2054 }
2055 wpa_hexdump(MSG_DEBUG,
2056 "Deauthentication frame IE(s)",
2057 data->deauth_info.ie,
2058 data->deauth_info.ie_len);
2059 #ifdef CONFIG_P2P
2060 wpas_p2p_deauth_notif(
2061 wpa_s, data->deauth_info.addr,
2062 reason_code,
2063 data->deauth_info.ie,
2064 data->deauth_info.ie_len);
2065 #endif /* CONFIG_P2P */
2066 }
2067 }
2068 #ifdef CONFIG_AP
2069 if (wpa_s->ap_iface && data && data->deauth_info.addr) {
2070 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2071 data->deauth_info.addr);
2072 break;
2073 }
2074 #endif /* CONFIG_AP */
2075 wpa_supplicant_event_disassoc(wpa_s, reason_code);
2076 break;
2077 case EVENT_MICHAEL_MIC_FAILURE:
2078 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
2079 break;
2080 #ifndef CONFIG_NO_SCAN_PROCESSING
2081 case EVENT_SCAN_RESULTS:
2082 wpa_supplicant_event_scan_results(wpa_s, data);
2083 break;
2084 #endif /* CONFIG_NO_SCAN_PROCESSING */
2085 case EVENT_ASSOCINFO:
2086 wpa_supplicant_event_associnfo(wpa_s, data);
2087 break;
2088 case EVENT_INTERFACE_STATUS:
2089 wpa_supplicant_event_interface_status(wpa_s, data);
2090 break;
2091 case EVENT_PMKID_CANDIDATE:
2092 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
2093 break;
2094 #ifdef CONFIG_PEERKEY
2095 case EVENT_STKSTART:
2096 wpa_supplicant_event_stkstart(wpa_s, data);
2097 break;
2098 #endif /* CONFIG_PEERKEY */
2099 #ifdef CONFIG_TDLS
2100 case EVENT_TDLS:
2101 wpa_supplicant_event_tdls(wpa_s, data);
2102 break;
2103 #endif /* CONFIG_TDLS */
2104 #ifdef CONFIG_IEEE80211R
2105 case EVENT_FT_RESPONSE:
2106 wpa_supplicant_event_ft_response(wpa_s, data);
2107 break;
2108 #endif /* CONFIG_IEEE80211R */
2109 #ifdef CONFIG_IBSS_RSN
2110 case EVENT_IBSS_RSN_START:
2111 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
2112 break;
2113 #endif /* CONFIG_IBSS_RSN */
2114 case EVENT_ASSOC_REJECT:
2115 if (data->assoc_reject.bssid)
2116 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2117 "bssid=" MACSTR " status_code=%u",
2118 MAC2STR(data->assoc_reject.bssid),
2119 data->assoc_reject.status_code);
2120 else
2121 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2122 "status_code=%u",
2123 data->assoc_reject.status_code);
2124 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2125 sme_event_assoc_reject(wpa_s, data);
2126 break;
2127 case EVENT_AUTH_TIMED_OUT:
2128 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2129 sme_event_auth_timed_out(wpa_s, data);
2130 break;
2131 case EVENT_ASSOC_TIMED_OUT:
2132 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2133 sme_event_assoc_timed_out(wpa_s, data);
2134 break;
2135 case EVENT_TX_STATUS:
2136 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
2137 " type=%d stype=%d",
2138 MAC2STR(data->tx_status.dst),
2139 data->tx_status.type, data->tx_status.stype);
2140 #ifdef CONFIG_AP
2141 if (wpa_s->ap_iface == NULL) {
2142 #ifdef CONFIG_OFFCHANNEL
2143 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2144 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
2145 offchannel_send_action_tx_status(
2146 wpa_s, data->tx_status.dst,
2147 data->tx_status.data,
2148 data->tx_status.data_len,
2149 data->tx_status.ack ?
2150 OFFCHANNEL_SEND_ACTION_SUCCESS :
2151 OFFCHANNEL_SEND_ACTION_NO_ACK);
2152 #endif /* CONFIG_OFFCHANNEL */
2153 break;
2154 }
2155 #endif /* CONFIG_AP */
2156 #ifdef CONFIG_OFFCHANNEL
2157 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
2158 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
2159 /*
2160 * Catch TX status events for Action frames we sent via group
2161 * interface in GO mode.
2162 */
2163 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2164 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
2165 os_memcmp(wpa_s->parent->pending_action_dst,
2166 data->tx_status.dst, ETH_ALEN) == 0) {
2167 offchannel_send_action_tx_status(
2168 wpa_s->parent, data->tx_status.dst,
2169 data->tx_status.data,
2170 data->tx_status.data_len,
2171 data->tx_status.ack ?
2172 OFFCHANNEL_SEND_ACTION_SUCCESS :
2173 OFFCHANNEL_SEND_ACTION_NO_ACK);
2174 break;
2175 }
2176 #endif /* CONFIG_OFFCHANNEL */
2177 #ifdef CONFIG_AP
2178 switch (data->tx_status.type) {
2179 case WLAN_FC_TYPE_MGMT:
2180 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
2181 data->tx_status.data_len,
2182 data->tx_status.stype,
2183 data->tx_status.ack);
2184 break;
2185 case WLAN_FC_TYPE_DATA:
2186 ap_tx_status(wpa_s, data->tx_status.dst,
2187 data->tx_status.data,
2188 data->tx_status.data_len,
2189 data->tx_status.ack);
2190 break;
2191 }
2192 #endif /* CONFIG_AP */
2193 break;
2194 #ifdef CONFIG_AP
2195 case EVENT_EAPOL_TX_STATUS:
2196 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
2197 data->eapol_tx_status.data,
2198 data->eapol_tx_status.data_len,
2199 data->eapol_tx_status.ack);
2200 break;
2201 case EVENT_DRIVER_CLIENT_POLL_OK:
2202 ap_client_poll_ok(wpa_s, data->client_poll.addr);
2203 break;
2204 case EVENT_RX_FROM_UNKNOWN:
2205 if (wpa_s->ap_iface == NULL)
2206 break;
2207 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
2208 data->rx_from_unknown.wds);
2209 break;
2210 case EVENT_RX_MGMT:
2211 if (wpa_s->ap_iface == NULL) {
2212 #ifdef CONFIG_P2P
2213 u16 fc, stype;
2214 const struct ieee80211_mgmt *mgmt;
2215 mgmt = (const struct ieee80211_mgmt *)
2216 data->rx_mgmt.frame;
2217 fc = le_to_host16(mgmt->frame_control);
2218 stype = WLAN_FC_GET_STYPE(fc);
2219 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2220 data->rx_mgmt.frame_len > 24) {
2221 const u8 *src = mgmt->sa;
2222 const u8 *ie = mgmt->u.probe_req.variable;
2223 size_t ie_len = data->rx_mgmt.frame_len -
2224 (mgmt->u.probe_req.variable -
2225 data->rx_mgmt.frame);
2226 wpas_p2p_probe_req_rx(wpa_s, src, mgmt->da,
2227 mgmt->bssid, ie, ie_len);
2228 break;
2229 }
2230 #endif /* CONFIG_P2P */
2231 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
2232 "management frame in non-AP mode");
2233 break;
2234 }
2235 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
2236 break;
2237 #endif /* CONFIG_AP */
2238 case EVENT_RX_ACTION:
2239 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2240 " Category=%u DataLen=%d freq=%d MHz",
2241 MAC2STR(data->rx_action.sa),
2242 data->rx_action.category, (int) data->rx_action.len,
2243 data->rx_action.freq);
2244 #ifdef CONFIG_IEEE80211R
2245 if (data->rx_action.category == WLAN_ACTION_FT) {
2246 ft_rx_action(wpa_s, data->rx_action.data,
2247 data->rx_action.len);
2248 break;
2249 }
2250 #endif /* CONFIG_IEEE80211R */
2251 #ifdef CONFIG_IEEE80211W
2252 #ifdef CONFIG_SME
2253 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) {
2254 sme_sa_query_rx(wpa_s, data->rx_action.sa,
2255 data->rx_action.data,
2256 data->rx_action.len);
2257 break;
2258 }
2259 #endif /* CONFIG_SME */
2260 #endif /* CONFIG_IEEE80211W */
2261 #ifdef CONFIG_GAS
2262 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2263 gas_query_rx(wpa_s->gas, data->rx_action.da,
2264 data->rx_action.sa, data->rx_action.bssid,
2265 data->rx_action.data, data->rx_action.len,
2266 data->rx_action.freq) == 0)
2267 break;
2268 #endif /* CONFIG_GAS */
2269 if (data->rx_action.category == WLAN_ACTION_WNM) {
2270 wnm_action_rx(wpa_s, &data->rx_action);
2271 break;
2272 }
2273 #ifdef CONFIG_TDLS
2274 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2275 data->rx_action.len >= 4 &&
2276 data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
2277 wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery "
2278 "Response from " MACSTR,
2279 MAC2STR(data->rx_action.sa));
2280 break;
2281 }
2282 #endif /* CONFIG_TDLS */
2283 #ifdef CONFIG_P2P
2284 wpas_p2p_rx_action(wpa_s, data->rx_action.da,
2285 data->rx_action.sa,
2286 data->rx_action.bssid,
2287 data->rx_action.category,
2288 data->rx_action.data,
2289 data->rx_action.len, data->rx_action.freq);
2290 #endif /* CONFIG_P2P */
2291 break;
2292 case EVENT_RX_PROBE_REQ:
2293 if (data->rx_probe_req.sa == NULL ||
2294 data->rx_probe_req.ie == NULL)
2295 break;
2296 #ifdef CONFIG_AP
2297 if (wpa_s->ap_iface) {
2298 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
2299 data->rx_probe_req.sa,
2300 data->rx_probe_req.da,
2301 data->rx_probe_req.bssid,
2302 data->rx_probe_req.ie,
2303 data->rx_probe_req.ie_len);
2304 break;
2305 }
2306 #endif /* CONFIG_AP */
2307 #ifdef CONFIG_P2P
2308 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
2309 data->rx_probe_req.da,
2310 data->rx_probe_req.bssid,
2311 data->rx_probe_req.ie,
2312 data->rx_probe_req.ie_len);
2313 #endif /* CONFIG_P2P */
2314 break;
2315 case EVENT_REMAIN_ON_CHANNEL:
2316 #ifdef CONFIG_OFFCHANNEL
2317 offchannel_remain_on_channel_cb(
2318 wpa_s, data->remain_on_channel.freq,
2319 data->remain_on_channel.duration);
2320 #endif /* CONFIG_OFFCHANNEL */
2321 #ifdef CONFIG_P2P
2322 wpas_p2p_remain_on_channel_cb(
2323 wpa_s, data->remain_on_channel.freq,
2324 data->remain_on_channel.duration);
2325 #endif /* CONFIG_P2P */
2326 break;
2327 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
2328 #ifdef CONFIG_OFFCHANNEL
2329 offchannel_cancel_remain_on_channel_cb(
2330 wpa_s, data->remain_on_channel.freq);
2331 #endif /* CONFIG_OFFCHANNEL */
2332 #ifdef CONFIG_P2P
2333 wpas_p2p_cancel_remain_on_channel_cb(
2334 wpa_s, data->remain_on_channel.freq);
2335 #endif /* CONFIG_P2P */
2336 break;
2337 #ifdef CONFIG_P2P
2338 case EVENT_P2P_DEV_FOUND: {
2339 struct p2p_peer_info peer_info;
2340
2341 os_memset(&peer_info, 0, sizeof(peer_info));
2342 if (data->p2p_dev_found.dev_addr)
2343 os_memcpy(peer_info.p2p_device_addr,
2344 data->p2p_dev_found.dev_addr, ETH_ALEN);
2345 if (data->p2p_dev_found.pri_dev_type)
2346 os_memcpy(peer_info.pri_dev_type,
2347 data->p2p_dev_found.pri_dev_type,
2348 sizeof(peer_info.pri_dev_type));
2349 if (data->p2p_dev_found.dev_name)
2350 os_strlcpy(peer_info.device_name,
2351 data->p2p_dev_found.dev_name,
2352 sizeof(peer_info.device_name));
2353 peer_info.config_methods = data->p2p_dev_found.config_methods;
2354 peer_info.dev_capab = data->p2p_dev_found.dev_capab;
2355 peer_info.group_capab = data->p2p_dev_found.group_capab;
2356
2357 /*
2358 * FIX: new_device=1 is not necessarily correct. We should
2359 * maintain a P2P peer database in wpa_supplicant and update
2360 * this information based on whether the peer is truly new.
2361 */
2362 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1);
2363 break;
2364 }
2365 case EVENT_P2P_GO_NEG_REQ_RX:
2366 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src,
2367 data->p2p_go_neg_req_rx.dev_passwd_id);
2368 break;
2369 case EVENT_P2P_GO_NEG_COMPLETED:
2370 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res);
2371 break;
2372 case EVENT_P2P_PROV_DISC_REQUEST:
2373 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer,
2374 data->p2p_prov_disc_req.config_methods,
2375 data->p2p_prov_disc_req.dev_addr,
2376 data->p2p_prov_disc_req.pri_dev_type,
2377 data->p2p_prov_disc_req.dev_name,
2378 data->p2p_prov_disc_req.supp_config_methods,
2379 data->p2p_prov_disc_req.dev_capab,
2380 data->p2p_prov_disc_req.group_capab,
2381 NULL, 0);
2382 break;
2383 case EVENT_P2P_PROV_DISC_RESPONSE:
2384 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer,
2385 data->p2p_prov_disc_resp.config_methods);
2386 break;
2387 case EVENT_P2P_SD_REQUEST:
2388 wpas_sd_request(wpa_s, data->p2p_sd_req.freq,
2389 data->p2p_sd_req.sa,
2390 data->p2p_sd_req.dialog_token,
2391 data->p2p_sd_req.update_indic,
2392 data->p2p_sd_req.tlvs,
2393 data->p2p_sd_req.tlvs_len);
2394 break;
2395 case EVENT_P2P_SD_RESPONSE:
2396 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa,
2397 data->p2p_sd_resp.update_indic,
2398 data->p2p_sd_resp.tlvs,
2399 data->p2p_sd_resp.tlvs_len);
2400 break;
2401 #endif /* CONFIG_P2P */
2402 case EVENT_EAPOL_RX:
2403 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
2404 data->eapol_rx.data,
2405 data->eapol_rx.data_len);
2406 break;
2407 case EVENT_SIGNAL_CHANGE:
2408 bgscan_notify_signal_change(
2409 wpa_s, data->signal_change.above_threshold,
2410 data->signal_change.current_signal,
2411 data->signal_change.current_noise,
2412 data->signal_change.current_txrate);
2413 break;
2414 case EVENT_INTERFACE_ENABLED:
2415 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
2416 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
2417 wpa_supplicant_update_mac_addr(wpa_s);
2418 #ifdef CONFIG_AP
2419 if (!wpa_s->ap_iface) {
2420 wpa_supplicant_set_state(wpa_s,
2421 WPA_DISCONNECTED);
2422 wpa_supplicant_req_scan(wpa_s, 0, 0);
2423 } else
2424 wpa_supplicant_set_state(wpa_s,
2425 WPA_COMPLETED);
2426 #else /* CONFIG_AP */
2427 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2428 wpa_supplicant_req_scan(wpa_s, 0, 0);
2429 #endif /* CONFIG_AP */
2430 }
2431 break;
2432 case EVENT_INTERFACE_DISABLED:
2433 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
2434 wpa_supplicant_mark_disassoc(wpa_s);
2435 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2436 break;
2437 case EVENT_CHANNEL_LIST_CHANGED:
2438 if (wpa_s->drv_priv == NULL)
2439 break; /* Ignore event during drv initialization */
2440 #ifdef CONFIG_P2P
2441 wpas_p2p_update_channel_list(wpa_s);
2442 #endif /* CONFIG_P2P */
2443 break;
2444 case EVENT_INTERFACE_UNAVAILABLE:
2445 #ifdef CONFIG_P2P
2446 wpas_p2p_interface_unavailable(wpa_s);
2447 #endif /* CONFIG_P2P */
2448 break;
2449 case EVENT_BEST_CHANNEL:
2450 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
2451 "(%d %d %d)",
2452 data->best_chan.freq_24, data->best_chan.freq_5,
2453 data->best_chan.freq_overall);
2454 wpa_s->best_24_freq = data->best_chan.freq_24;
2455 wpa_s->best_5_freq = data->best_chan.freq_5;
2456 wpa_s->best_overall_freq = data->best_chan.freq_overall;
2457 #ifdef CONFIG_P2P
2458 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
2459 data->best_chan.freq_5,
2460 data->best_chan.freq_overall);
2461 #endif /* CONFIG_P2P */
2462 break;
2463 case EVENT_UNPROT_DEAUTH:
2464 wpa_supplicant_event_unprot_deauth(wpa_s,
2465 &data->unprot_deauth);
2466 break;
2467 case EVENT_UNPROT_DISASSOC:
2468 wpa_supplicant_event_unprot_disassoc(wpa_s,
2469 &data->unprot_disassoc);
2470 break;
2471 case EVENT_STATION_LOW_ACK:
2472 #ifdef CONFIG_AP
2473 if (wpa_s->ap_iface && data)
2474 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
2475 data->low_ack.addr);
2476 #endif /* CONFIG_AP */
2477 #ifdef CONFIG_TDLS
2478 if (data)
2479 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr);
2480 #endif /* CONFIG_TDLS */
2481 break;
2482 case EVENT_IBSS_PEER_LOST:
2483 #ifdef CONFIG_IBSS_RSN
2484 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
2485 #endif /* CONFIG_IBSS_RSN */
2486 break;
2487 case EVENT_DRIVER_GTK_REKEY:
2488 if (os_memcmp(data->driver_gtk_rekey.bssid,
2489 wpa_s->bssid, ETH_ALEN))
2490 break;
2491 if (!wpa_s->wpa)
2492 break;
2493 wpa_sm_update_replay_ctr(wpa_s->wpa,
2494 data->driver_gtk_rekey.replay_ctr);
2495 break;
2496 case EVENT_SCHED_SCAN_STOPPED:
2497 wpa_s->sched_scanning = 0;
2498 wpa_supplicant_notify_scanning(wpa_s, 0);
2499
2500 /*
2501 * If we timed out, start a new sched scan to continue
2502 * searching for more SSIDs.
2503 */
2504 if (wpa_s->sched_scan_timed_out)
2505 wpa_supplicant_req_sched_scan(wpa_s);
2506 break;
2507 case EVENT_WPS_BUTTON_PUSHED:
2508 #ifdef CONFIG_WPS
2509 wpas_wps_start_pbc(wpa_s, NULL, 0);
2510 #endif /* CONFIG_WPS */
2511 break;
2512 default:
2513 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
2514 break;
2515 }
2516 }
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