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Ignore auth/assoc timeout events in mesh configuration
[thirdparty/hostap.git] / wpa_supplicant / events.c
1 /*
2 * WPA Supplicant - Driver event processing
3 * Copyright (c) 2003-2014, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "includes.h"
10
11 #include "common.h"
12 #include "eapol_supp/eapol_supp_sm.h"
13 #include "rsn_supp/wpa.h"
14 #include "eloop.h"
15 #include "config.h"
16 #include "l2_packet/l2_packet.h"
17 #include "wpa_supplicant_i.h"
18 #include "driver_i.h"
19 #include "pcsc_funcs.h"
20 #include "rsn_supp/preauth.h"
21 #include "rsn_supp/pmksa_cache.h"
22 #include "common/wpa_ctrl.h"
23 #include "eap_peer/eap.h"
24 #include "ap/hostapd.h"
25 #include "p2p/p2p.h"
26 #include "wnm_sta.h"
27 #include "notify.h"
28 #include "common/ieee802_11_defs.h"
29 #include "common/ieee802_11_common.h"
30 #include "crypto/random.h"
31 #include "blacklist.h"
32 #include "wpas_glue.h"
33 #include "wps_supplicant.h"
34 #include "ibss_rsn.h"
35 #include "sme.h"
36 #include "gas_query.h"
37 #include "p2p_supplicant.h"
38 #include "bgscan.h"
39 #include "autoscan.h"
40 #include "ap.h"
41 #include "bss.h"
42 #include "scan.h"
43 #include "offchannel.h"
44 #include "interworking.h"
45 #include "mesh.h"
46 #include "mesh_mpm.h"
47 #include "wmm_ac.h"
48
49
50 #ifndef CONFIG_NO_SCAN_PROCESSING
51 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
52 int new_scan, int own_request);
53 #endif /* CONFIG_NO_SCAN_PROCESSING */
54
55
56 static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
57 struct wpa_ssid *ssid)
58 {
59 struct os_reltime now;
60
61 if (ssid == NULL || ssid->disabled_until.sec == 0)
62 return 0;
63
64 os_get_reltime(&now);
65 if (ssid->disabled_until.sec > now.sec)
66 return ssid->disabled_until.sec - now.sec;
67
68 wpas_clear_temp_disabled(wpa_s, ssid, 0);
69
70 return 0;
71 }
72
73
74 static struct wpa_bss * wpa_supplicant_get_new_bss(
75 struct wpa_supplicant *wpa_s, const u8 *bssid)
76 {
77 struct wpa_bss *bss = NULL;
78 struct wpa_ssid *ssid = wpa_s->current_ssid;
79
80 if (ssid->ssid_len > 0)
81 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
82 if (!bss)
83 bss = wpa_bss_get_bssid(wpa_s, bssid);
84
85 return bss;
86 }
87
88
89 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
90 {
91 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
92
93 if (!bss) {
94 wpa_supplicant_update_scan_results(wpa_s);
95
96 /* Get the BSS from the new scan results */
97 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
98 }
99
100 if (bss)
101 wpa_s->current_bss = bss;
102 }
103
104
105 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
106 {
107 struct wpa_ssid *ssid, *old_ssid;
108 int res;
109
110 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
111 wpa_supplicant_update_current_bss(wpa_s);
112 return 0;
113 }
114
115 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
116 "information");
117 ssid = wpa_supplicant_get_ssid(wpa_s);
118 if (ssid == NULL) {
119 wpa_msg(wpa_s, MSG_INFO,
120 "No network configuration found for the current AP");
121 return -1;
122 }
123
124 if (wpas_network_disabled(wpa_s, ssid)) {
125 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
126 return -1;
127 }
128
129 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
130 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
131 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
132 return -1;
133 }
134
135 res = wpas_temp_disabled(wpa_s, ssid);
136 if (res > 0) {
137 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
138 "disabled for %d second(s)", res);
139 return -1;
140 }
141
142 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
143 "current AP");
144 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
145 u8 wpa_ie[80];
146 size_t wpa_ie_len = sizeof(wpa_ie);
147 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
148 wpa_ie, &wpa_ie_len) < 0)
149 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
150 } else {
151 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
152 }
153
154 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
155 eapol_sm_invalidate_cached_session(wpa_s->eapol);
156 old_ssid = wpa_s->current_ssid;
157 wpa_s->current_ssid = ssid;
158
159 wpa_supplicant_update_current_bss(wpa_s);
160
161 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
162 wpa_supplicant_initiate_eapol(wpa_s);
163 if (old_ssid != wpa_s->current_ssid)
164 wpas_notify_network_changed(wpa_s);
165
166 return 0;
167 }
168
169
170 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
171 {
172 struct wpa_supplicant *wpa_s = eloop_ctx;
173
174 if (wpa_s->countermeasures) {
175 wpa_s->countermeasures = 0;
176 wpa_drv_set_countermeasures(wpa_s, 0);
177 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
178 wpa_supplicant_req_scan(wpa_s, 0, 0);
179 }
180 }
181
182
183 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
184 {
185 int bssid_changed;
186
187 wnm_bss_keep_alive_deinit(wpa_s);
188
189 #ifdef CONFIG_IBSS_RSN
190 ibss_rsn_deinit(wpa_s->ibss_rsn);
191 wpa_s->ibss_rsn = NULL;
192 #endif /* CONFIG_IBSS_RSN */
193
194 #ifdef CONFIG_AP
195 wpa_supplicant_ap_deinit(wpa_s);
196 #endif /* CONFIG_AP */
197
198 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
199 return;
200
201 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
202 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
203 os_memset(wpa_s->bssid, 0, ETH_ALEN);
204 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
205 #ifdef CONFIG_SME
206 wpa_s->sme.prev_bssid_set = 0;
207 #endif /* CONFIG_SME */
208 #ifdef CONFIG_P2P
209 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
210 #endif /* CONFIG_P2P */
211 wpa_s->current_bss = NULL;
212 wpa_s->assoc_freq = 0;
213 #ifdef CONFIG_IEEE80211R
214 #ifdef CONFIG_SME
215 if (wpa_s->sme.ft_ies)
216 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
217 #endif /* CONFIG_SME */
218 #endif /* CONFIG_IEEE80211R */
219
220 if (bssid_changed)
221 wpas_notify_bssid_changed(wpa_s);
222
223 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
224 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
225 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
226 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
227 wpa_s->ap_ies_from_associnfo = 0;
228 wpa_s->current_ssid = NULL;
229 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
230 wpa_s->key_mgmt = 0;
231
232 wpas_rrm_reset(wpa_s);
233 }
234
235
236 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
237 {
238 struct wpa_ie_data ie;
239 int pmksa_set = -1;
240 size_t i;
241
242 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
243 ie.pmkid == NULL)
244 return;
245
246 for (i = 0; i < ie.num_pmkid; i++) {
247 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
248 ie.pmkid + i * PMKID_LEN,
249 NULL, NULL, 0);
250 if (pmksa_set == 0) {
251 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
252 break;
253 }
254 }
255
256 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
257 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
258 }
259
260
261 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
262 union wpa_event_data *data)
263 {
264 if (data == NULL) {
265 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
266 "event");
267 return;
268 }
269 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
270 " index=%d preauth=%d",
271 MAC2STR(data->pmkid_candidate.bssid),
272 data->pmkid_candidate.index,
273 data->pmkid_candidate.preauth);
274
275 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
276 data->pmkid_candidate.index,
277 data->pmkid_candidate.preauth);
278 }
279
280
281 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
282 {
283 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
284 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
285 return 0;
286
287 #ifdef IEEE8021X_EAPOL
288 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
289 wpa_s->current_ssid &&
290 !(wpa_s->current_ssid->eapol_flags &
291 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
292 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
293 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
294 * plaintext or static WEP keys). */
295 return 0;
296 }
297 #endif /* IEEE8021X_EAPOL */
298
299 return 1;
300 }
301
302
303 /**
304 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
305 * @wpa_s: pointer to wpa_supplicant data
306 * @ssid: Configuration data for the network
307 * Returns: 0 on success, -1 on failure
308 *
309 * This function is called when starting authentication with a network that is
310 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
311 */
312 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
313 struct wpa_ssid *ssid)
314 {
315 #ifdef IEEE8021X_EAPOL
316 #ifdef PCSC_FUNCS
317 int aka = 0, sim = 0;
318
319 if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
320 wpa_s->scard != NULL || wpa_s->conf->external_sim)
321 return 0;
322
323 if (ssid == NULL || ssid->eap.eap_methods == NULL) {
324 sim = 1;
325 aka = 1;
326 } else {
327 struct eap_method_type *eap = ssid->eap.eap_methods;
328 while (eap->vendor != EAP_VENDOR_IETF ||
329 eap->method != EAP_TYPE_NONE) {
330 if (eap->vendor == EAP_VENDOR_IETF) {
331 if (eap->method == EAP_TYPE_SIM)
332 sim = 1;
333 else if (eap->method == EAP_TYPE_AKA ||
334 eap->method == EAP_TYPE_AKA_PRIME)
335 aka = 1;
336 }
337 eap++;
338 }
339 }
340
341 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
342 sim = 0;
343 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
344 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
345 NULL)
346 aka = 0;
347
348 if (!sim && !aka) {
349 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
350 "use SIM, but neither EAP-SIM nor EAP-AKA are "
351 "enabled");
352 return 0;
353 }
354
355 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
356 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
357
358 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
359 if (wpa_s->scard == NULL) {
360 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
361 "(pcsc-lite)");
362 return -1;
363 }
364 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
365 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
366 #endif /* PCSC_FUNCS */
367 #endif /* IEEE8021X_EAPOL */
368
369 return 0;
370 }
371
372
373 #ifndef CONFIG_NO_SCAN_PROCESSING
374
375 static int has_wep_key(struct wpa_ssid *ssid)
376 {
377 int i;
378
379 for (i = 0; i < NUM_WEP_KEYS; i++) {
380 if (ssid->wep_key_len[i])
381 return 1;
382 }
383
384 return 0;
385 }
386
387
388 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
389 struct wpa_ssid *ssid)
390 {
391 int privacy = 0;
392
393 if (ssid->mixed_cell)
394 return 1;
395
396 #ifdef CONFIG_WPS
397 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
398 return 1;
399 #endif /* CONFIG_WPS */
400
401 if (has_wep_key(ssid))
402 privacy = 1;
403
404 #ifdef IEEE8021X_EAPOL
405 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
406 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
407 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
408 privacy = 1;
409 #endif /* IEEE8021X_EAPOL */
410
411 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
412 privacy = 1;
413
414 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
415 privacy = 1;
416
417 if (bss->caps & IEEE80211_CAP_PRIVACY)
418 return privacy;
419 return !privacy;
420 }
421
422
423 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
424 struct wpa_ssid *ssid,
425 struct wpa_bss *bss)
426 {
427 struct wpa_ie_data ie;
428 int proto_match = 0;
429 const u8 *rsn_ie, *wpa_ie;
430 int ret;
431 int wep_ok;
432
433 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
434 if (ret >= 0)
435 return ret;
436
437 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
438 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
439 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
440 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
441 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
442
443 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
444 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
445 proto_match++;
446
447 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
448 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
449 "failed");
450 break;
451 }
452
453 if (wep_ok &&
454 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
455 {
456 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
457 "in RSN IE");
458 return 1;
459 }
460
461 if (!(ie.proto & ssid->proto)) {
462 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
463 "mismatch");
464 break;
465 }
466
467 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
468 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
469 "cipher mismatch");
470 break;
471 }
472
473 if (!(ie.group_cipher & ssid->group_cipher)) {
474 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
475 "cipher mismatch");
476 break;
477 }
478
479 if (!(ie.key_mgmt & ssid->key_mgmt)) {
480 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
481 "mismatch");
482 break;
483 }
484
485 #ifdef CONFIG_IEEE80211W
486 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
487 (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ?
488 wpa_s->conf->pmf : ssid->ieee80211w) ==
489 MGMT_FRAME_PROTECTION_REQUIRED) {
490 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
491 "frame protection");
492 break;
493 }
494 #endif /* CONFIG_IEEE80211W */
495
496 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
497 return 1;
498 }
499
500 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
501 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
502 proto_match++;
503
504 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
505 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
506 "failed");
507 break;
508 }
509
510 if (wep_ok &&
511 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
512 {
513 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
514 "in WPA IE");
515 return 1;
516 }
517
518 if (!(ie.proto & ssid->proto)) {
519 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
520 "mismatch");
521 break;
522 }
523
524 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
525 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
526 "cipher mismatch");
527 break;
528 }
529
530 if (!(ie.group_cipher & ssid->group_cipher)) {
531 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
532 "cipher mismatch");
533 break;
534 }
535
536 if (!(ie.key_mgmt & ssid->key_mgmt)) {
537 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
538 "mismatch");
539 break;
540 }
541
542 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
543 return 1;
544 }
545
546 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
547 !rsn_ie) {
548 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
549 return 1;
550 }
551
552 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
553 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
554 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
555 return 0;
556 }
557
558 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
559 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
560 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
561 return 1;
562 }
563
564 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
565 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
566 return 1;
567 }
568
569 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
570 "WPA/WPA2");
571
572 return 0;
573 }
574
575
576 static int freq_allowed(int *freqs, int freq)
577 {
578 int i;
579
580 if (freqs == NULL)
581 return 1;
582
583 for (i = 0; freqs[i]; i++)
584 if (freqs[i] == freq)
585 return 1;
586 return 0;
587 }
588
589
590 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
591 {
592 const struct hostapd_hw_modes *mode = NULL, *modes;
593 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
594 const u8 *rate_ie;
595 int i, j, k;
596
597 if (bss->freq == 0)
598 return 1; /* Cannot do matching without knowing band */
599
600 modes = wpa_s->hw.modes;
601 if (modes == NULL) {
602 /*
603 * The driver does not provide any additional information
604 * about the utilized hardware, so allow the connection attempt
605 * to continue.
606 */
607 return 1;
608 }
609
610 for (i = 0; i < wpa_s->hw.num_modes; i++) {
611 for (j = 0; j < modes[i].num_channels; j++) {
612 int freq = modes[i].channels[j].freq;
613 if (freq == bss->freq) {
614 if (mode &&
615 mode->mode == HOSTAPD_MODE_IEEE80211G)
616 break; /* do not allow 802.11b replace
617 * 802.11g */
618 mode = &modes[i];
619 break;
620 }
621 }
622 }
623
624 if (mode == NULL)
625 return 0;
626
627 for (i = 0; i < (int) sizeof(scan_ie); i++) {
628 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
629 if (rate_ie == NULL)
630 continue;
631
632 for (j = 2; j < rate_ie[1] + 2; j++) {
633 int flagged = !!(rate_ie[j] & 0x80);
634 int r = (rate_ie[j] & 0x7f) * 5;
635
636 /*
637 * IEEE Std 802.11n-2009 7.3.2.2:
638 * The new BSS Membership selector value is encoded
639 * like a legacy basic rate, but it is not a rate and
640 * only indicates if the BSS members are required to
641 * support the mandatory features of Clause 20 [HT PHY]
642 * in order to join the BSS.
643 */
644 if (flagged && ((rate_ie[j] & 0x7f) ==
645 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
646 if (!ht_supported(mode)) {
647 wpa_dbg(wpa_s, MSG_DEBUG,
648 " hardware does not support "
649 "HT PHY");
650 return 0;
651 }
652 continue;
653 }
654
655 /* There's also a VHT selector for 802.11ac */
656 if (flagged && ((rate_ie[j] & 0x7f) ==
657 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
658 if (!vht_supported(mode)) {
659 wpa_dbg(wpa_s, MSG_DEBUG,
660 " hardware does not support "
661 "VHT PHY");
662 return 0;
663 }
664 continue;
665 }
666
667 if (!flagged)
668 continue;
669
670 /* check for legacy basic rates */
671 for (k = 0; k < mode->num_rates; k++) {
672 if (mode->rates[k] == r)
673 break;
674 }
675 if (k == mode->num_rates) {
676 /*
677 * IEEE Std 802.11-2007 7.3.2.2 demands that in
678 * order to join a BSS all required rates
679 * have to be supported by the hardware.
680 */
681 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does "
682 "not support required rate %d.%d Mbps",
683 r / 10, r % 10);
684 return 0;
685 }
686 }
687 }
688
689 return 1;
690 }
691
692
693 /*
694 * Test whether BSS is in an ESS.
695 * This is done differently in DMG (60 GHz) and non-DMG bands
696 */
697 static int bss_is_ess(struct wpa_bss *bss)
698 {
699 if (bss_is_dmg(bss)) {
700 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
701 IEEE80211_CAP_DMG_AP;
702 }
703
704 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
705 IEEE80211_CAP_ESS);
706 }
707
708
709 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
710 int i, struct wpa_bss *bss,
711 struct wpa_ssid *group,
712 int only_first_ssid)
713 {
714 u8 wpa_ie_len, rsn_ie_len;
715 int wpa;
716 struct wpa_blacklist *e;
717 const u8 *ie;
718 struct wpa_ssid *ssid;
719 int osen;
720
721 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
722 wpa_ie_len = ie ? ie[1] : 0;
723
724 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
725 rsn_ie_len = ie ? ie[1] : 0;
726
727 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
728 osen = ie != NULL;
729
730 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
731 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s%s%s",
732 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
733 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
734 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "",
735 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
736 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ?
737 " p2p" : "",
738 osen ? " osen=1" : "");
739
740 e = wpa_blacklist_get(wpa_s, bss->bssid);
741 if (e) {
742 int limit = 1;
743 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
744 /*
745 * When only a single network is enabled, we can
746 * trigger blacklisting on the first failure. This
747 * should not be done with multiple enabled networks to
748 * avoid getting forced to move into a worse ESS on
749 * single error if there are no other BSSes of the
750 * current ESS.
751 */
752 limit = 0;
753 }
754 if (e->count > limit) {
755 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
756 "(count=%d limit=%d)", e->count, limit);
757 return NULL;
758 }
759 }
760
761 if (bss->ssid_len == 0) {
762 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
763 return NULL;
764 }
765
766 if (disallowed_bssid(wpa_s, bss->bssid)) {
767 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
768 return NULL;
769 }
770
771 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
772 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
773 return NULL;
774 }
775
776 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
777
778 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
779 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
780 int res;
781
782 if (wpas_network_disabled(wpa_s, ssid)) {
783 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
784 continue;
785 }
786
787 res = wpas_temp_disabled(wpa_s, ssid);
788 if (res > 0) {
789 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
790 "temporarily for %d second(s)", res);
791 continue;
792 }
793
794 #ifdef CONFIG_WPS
795 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
796 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
797 "(WPS)");
798 continue;
799 }
800
801 if (wpa && ssid->ssid_len == 0 &&
802 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
803 check_ssid = 0;
804
805 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
806 /* Only allow wildcard SSID match if an AP
807 * advertises active WPS operation that matches
808 * with our mode. */
809 check_ssid = 1;
810 if (ssid->ssid_len == 0 &&
811 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
812 check_ssid = 0;
813 }
814 #endif /* CONFIG_WPS */
815
816 if (ssid->bssid_set && ssid->ssid_len == 0 &&
817 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
818 check_ssid = 0;
819
820 if (check_ssid &&
821 (bss->ssid_len != ssid->ssid_len ||
822 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
823 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
824 continue;
825 }
826
827 if (ssid->bssid_set &&
828 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
829 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
830 continue;
831 }
832
833 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
834 continue;
835
836 if (!osen && !wpa &&
837 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
838 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
839 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
840 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
841 "not allowed");
842 continue;
843 }
844
845 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
846 has_wep_key(ssid)) {
847 wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block");
848 continue;
849 }
850
851 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) {
852 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-OSEN network "
853 "not allowed");
854 continue;
855 }
856
857 if (!wpa_supplicant_match_privacy(bss, ssid)) {
858 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
859 "mismatch");
860 continue;
861 }
862
863 if (!bss_is_ess(bss)) {
864 wpa_dbg(wpa_s, MSG_DEBUG, " skip - not ESS network");
865 continue;
866 }
867
868 if (!freq_allowed(ssid->freq_list, bss->freq)) {
869 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
870 "allowed");
871 continue;
872 }
873
874 if (!rate_match(wpa_s, bss)) {
875 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
876 "not match");
877 continue;
878 }
879
880 #ifdef CONFIG_P2P
881 if (ssid->p2p_group &&
882 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
883 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
884 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
885 continue;
886 }
887
888 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
889 struct wpabuf *p2p_ie;
890 u8 dev_addr[ETH_ALEN];
891
892 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
893 if (ie == NULL) {
894 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element");
895 continue;
896 }
897 p2p_ie = wpa_bss_get_vendor_ie_multi(
898 bss, P2P_IE_VENDOR_TYPE);
899 if (p2p_ie == NULL) {
900 wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element");
901 continue;
902 }
903
904 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
905 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
906 ETH_ALEN) != 0) {
907 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element");
908 wpabuf_free(p2p_ie);
909 continue;
910 }
911 wpabuf_free(p2p_ie);
912 }
913
914 /*
915 * TODO: skip the AP if its P2P IE has Group Formation
916 * bit set in the P2P Group Capability Bitmap and we
917 * are not in Group Formation with that device.
918 */
919 #endif /* CONFIG_P2P */
920
921 /* Matching configuration found */
922 return ssid;
923 }
924
925 /* No matching configuration found */
926 return NULL;
927 }
928
929
930 static struct wpa_bss *
931 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
932 struct wpa_ssid *group,
933 struct wpa_ssid **selected_ssid,
934 int only_first_ssid)
935 {
936 unsigned int i;
937
938 if (only_first_ssid)
939 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
940 group->id);
941 else
942 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
943 group->priority);
944
945 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
946 struct wpa_bss *bss = wpa_s->last_scan_res[i];
947 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
948 only_first_ssid);
949 if (!*selected_ssid)
950 continue;
951 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
952 " ssid='%s'",
953 MAC2STR(bss->bssid),
954 wpa_ssid_txt(bss->ssid, bss->ssid_len));
955 return bss;
956 }
957
958 return NULL;
959 }
960
961
962 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
963 struct wpa_ssid **selected_ssid)
964 {
965 struct wpa_bss *selected = NULL;
966 int prio;
967 struct wpa_ssid *next_ssid = NULL;
968
969 if (wpa_s->last_scan_res == NULL ||
970 wpa_s->last_scan_res_used == 0)
971 return NULL; /* no scan results from last update */
972
973 if (wpa_s->next_ssid) {
974 struct wpa_ssid *ssid;
975
976 /* check that next_ssid is still valid */
977 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
978 if (ssid == wpa_s->next_ssid)
979 break;
980 }
981 next_ssid = ssid;
982 wpa_s->next_ssid = NULL;
983 }
984
985 while (selected == NULL) {
986 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
987 if (next_ssid && next_ssid->priority ==
988 wpa_s->conf->pssid[prio]->priority) {
989 selected = wpa_supplicant_select_bss(
990 wpa_s, next_ssid, selected_ssid, 1);
991 if (selected)
992 break;
993 }
994 selected = wpa_supplicant_select_bss(
995 wpa_s, wpa_s->conf->pssid[prio],
996 selected_ssid, 0);
997 if (selected)
998 break;
999 }
1000
1001 if (selected == NULL && wpa_s->blacklist &&
1002 !wpa_s->countermeasures) {
1003 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1004 "blacklist and try again");
1005 wpa_blacklist_clear(wpa_s);
1006 wpa_s->blacklist_cleared++;
1007 } else if (selected == NULL)
1008 break;
1009 }
1010
1011 return selected;
1012 }
1013
1014
1015 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1016 int timeout_sec, int timeout_usec)
1017 {
1018 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1019 /*
1020 * No networks are enabled; short-circuit request so
1021 * we don't wait timeout seconds before transitioning
1022 * to INACTIVE state.
1023 */
1024 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1025 "since there are no enabled networks");
1026 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1027 return;
1028 }
1029
1030 wpa_s->scan_for_connection = 1;
1031 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1032 }
1033
1034
1035 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1036 struct wpa_bss *selected,
1037 struct wpa_ssid *ssid)
1038 {
1039 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1040 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1041 "PBC session overlap");
1042 #ifdef CONFIG_P2P
1043 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1044 wpa_s->p2p_in_provisioning) {
1045 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1046 wpa_s, NULL);
1047 return -1;
1048 }
1049 #endif /* CONFIG_P2P */
1050
1051 #ifdef CONFIG_WPS
1052 wpas_wps_cancel(wpa_s);
1053 #endif /* CONFIG_WPS */
1054 return -1;
1055 }
1056
1057 wpa_msg(wpa_s, MSG_DEBUG,
1058 "Considering connect request: reassociate: %d selected: "
1059 MACSTR " bssid: " MACSTR " pending: " MACSTR
1060 " wpa_state: %s ssid=%p current_ssid=%p",
1061 wpa_s->reassociate, MAC2STR(selected->bssid),
1062 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1063 wpa_supplicant_state_txt(wpa_s->wpa_state),
1064 ssid, wpa_s->current_ssid);
1065
1066 /*
1067 * Do not trigger new association unless the BSSID has changed or if
1068 * reassociation is requested. If we are in process of associating with
1069 * the selected BSSID, do not trigger new attempt.
1070 */
1071 if (wpa_s->reassociate ||
1072 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1073 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1074 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1075 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1076 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1077 0) ||
1078 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1079 ssid != wpa_s->current_ssid)))) {
1080 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1081 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1082 return 0;
1083 }
1084 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1085 MAC2STR(selected->bssid));
1086 wpa_supplicant_associate(wpa_s, selected, ssid);
1087 } else {
1088 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1089 "connect with the selected AP");
1090 }
1091
1092 return 0;
1093 }
1094
1095
1096 static struct wpa_ssid *
1097 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1098 {
1099 int prio;
1100 struct wpa_ssid *ssid;
1101
1102 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1103 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1104 {
1105 if (wpas_network_disabled(wpa_s, ssid))
1106 continue;
1107 if (ssid->mode == IEEE80211_MODE_IBSS ||
1108 ssid->mode == IEEE80211_MODE_AP ||
1109 ssid->mode == IEEE80211_MODE_MESH)
1110 return ssid;
1111 }
1112 }
1113 return NULL;
1114 }
1115
1116
1117 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1118 * on BSS added and BSS changed events */
1119 static void wpa_supplicant_rsn_preauth_scan_results(
1120 struct wpa_supplicant *wpa_s)
1121 {
1122 struct wpa_bss *bss;
1123
1124 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1125 return;
1126
1127 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1128 const u8 *ssid, *rsn;
1129
1130 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1131 if (ssid == NULL)
1132 continue;
1133
1134 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1135 if (rsn == NULL)
1136 continue;
1137
1138 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1139 }
1140
1141 }
1142
1143
1144 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1145 struct wpa_bss *selected,
1146 struct wpa_ssid *ssid)
1147 {
1148 struct wpa_bss *current_bss = NULL;
1149 int min_diff;
1150
1151 if (wpa_s->reassociate)
1152 return 1; /* explicit request to reassociate */
1153 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1154 return 1; /* we are not associated; continue */
1155 if (wpa_s->current_ssid == NULL)
1156 return 1; /* unknown current SSID */
1157 if (wpa_s->current_ssid != ssid)
1158 return 1; /* different network block */
1159
1160 if (wpas_driver_bss_selection(wpa_s))
1161 return 0; /* Driver-based roaming */
1162
1163 if (wpa_s->current_ssid->ssid)
1164 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1165 wpa_s->current_ssid->ssid,
1166 wpa_s->current_ssid->ssid_len);
1167 if (!current_bss)
1168 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1169
1170 if (!current_bss)
1171 return 1; /* current BSS not seen in scan results */
1172
1173 if (current_bss == selected)
1174 return 0;
1175
1176 if (selected->last_update_idx > current_bss->last_update_idx)
1177 return 1; /* current BSS not seen in the last scan */
1178
1179 #ifndef CONFIG_NO_ROAMING
1180 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1181 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
1182 MAC2STR(current_bss->bssid), current_bss->level);
1183 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
1184 MAC2STR(selected->bssid), selected->level);
1185
1186 if (wpa_s->current_ssid->bssid_set &&
1187 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1188 0) {
1189 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1190 "has preferred BSSID");
1191 return 1;
1192 }
1193
1194 if (current_bss->level < 0 && current_bss->level > selected->level) {
1195 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1196 "signal level");
1197 return 0;
1198 }
1199
1200 min_diff = 2;
1201 if (current_bss->level < 0) {
1202 if (current_bss->level < -85)
1203 min_diff = 1;
1204 else if (current_bss->level < -80)
1205 min_diff = 2;
1206 else if (current_bss->level < -75)
1207 min_diff = 3;
1208 else if (current_bss->level < -70)
1209 min_diff = 4;
1210 else
1211 min_diff = 5;
1212 }
1213 if (abs(current_bss->level - selected->level) < min_diff) {
1214 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1215 "in signal level");
1216 return 0;
1217 }
1218
1219 return 1;
1220 #else /* CONFIG_NO_ROAMING */
1221 return 0;
1222 #endif /* CONFIG_NO_ROAMING */
1223 }
1224
1225
1226 /* Return != 0 if no scan results could be fetched or if scan results should not
1227 * be shared with other virtual interfaces. */
1228 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1229 union wpa_event_data *data,
1230 int own_request)
1231 {
1232 struct wpa_scan_results *scan_res = NULL;
1233 int ret = 0;
1234 int ap = 0;
1235 #ifndef CONFIG_NO_RANDOM_POOL
1236 size_t i, num;
1237 #endif /* CONFIG_NO_RANDOM_POOL */
1238
1239 #ifdef CONFIG_AP
1240 if (wpa_s->ap_iface)
1241 ap = 1;
1242 #endif /* CONFIG_AP */
1243
1244 wpa_supplicant_notify_scanning(wpa_s, 0);
1245
1246 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1247 data ? &data->scan_info :
1248 NULL, 1);
1249 if (scan_res == NULL) {
1250 if (wpa_s->conf->ap_scan == 2 || ap ||
1251 wpa_s->scan_res_handler == scan_only_handler)
1252 return -1;
1253 if (!own_request)
1254 return -1;
1255 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1256 "scanning again");
1257 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1258 ret = -1;
1259 goto scan_work_done;
1260 }
1261
1262 #ifndef CONFIG_NO_RANDOM_POOL
1263 num = scan_res->num;
1264 if (num > 10)
1265 num = 10;
1266 for (i = 0; i < num; i++) {
1267 u8 buf[5];
1268 struct wpa_scan_res *res = scan_res->res[i];
1269 buf[0] = res->bssid[5];
1270 buf[1] = res->qual & 0xff;
1271 buf[2] = res->noise & 0xff;
1272 buf[3] = res->level & 0xff;
1273 buf[4] = res->tsf & 0xff;
1274 random_add_randomness(buf, sizeof(buf));
1275 }
1276 #endif /* CONFIG_NO_RANDOM_POOL */
1277
1278 if (own_request && wpa_s->scan_res_handler &&
1279 (wpa_s->own_scan_running || !wpa_s->external_scan_running)) {
1280 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1281 struct wpa_scan_results *scan_res);
1282
1283 scan_res_handler = wpa_s->scan_res_handler;
1284 wpa_s->scan_res_handler = NULL;
1285 scan_res_handler(wpa_s, scan_res);
1286 ret = -2;
1287 goto scan_work_done;
1288 }
1289
1290 if (ap) {
1291 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1292 #ifdef CONFIG_AP
1293 if (wpa_s->ap_iface->scan_cb)
1294 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1295 #endif /* CONFIG_AP */
1296 goto scan_work_done;
1297 }
1298
1299 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1300 wpa_s->own_scan_running, wpa_s->external_scan_running);
1301 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1302 wpa_s->manual_scan_use_id && wpa_s->own_scan_running) {
1303 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1304 wpa_s->manual_scan_id);
1305 wpa_s->manual_scan_use_id = 0;
1306 } else {
1307 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1308 }
1309 wpas_notify_scan_results(wpa_s);
1310
1311 wpas_notify_scan_done(wpa_s, 1);
1312
1313 if (!wpa_s->own_scan_running && wpa_s->external_scan_running) {
1314 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1315 wpa_scan_results_free(scan_res);
1316 return 0;
1317 }
1318
1319 if (wnm_scan_process(wpa_s, 1) > 0)
1320 goto scan_work_done;
1321
1322 if (sme_proc_obss_scan(wpa_s) > 0)
1323 goto scan_work_done;
1324
1325 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1326 goto scan_work_done;
1327
1328 if (autoscan_notify_scan(wpa_s, scan_res))
1329 goto scan_work_done;
1330
1331 if (wpa_s->disconnected) {
1332 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1333 goto scan_work_done;
1334 }
1335
1336 if (!wpas_driver_bss_selection(wpa_s) &&
1337 bgscan_notify_scan(wpa_s, scan_res) == 1)
1338 goto scan_work_done;
1339
1340 wpas_wps_update_ap_info(wpa_s, scan_res);
1341
1342 wpa_scan_results_free(scan_res);
1343
1344 if (wpa_s->scan_work) {
1345 struct wpa_radio_work *work = wpa_s->scan_work;
1346 wpa_s->scan_work = NULL;
1347 radio_work_done(work);
1348 }
1349
1350 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
1351
1352 scan_work_done:
1353 wpa_scan_results_free(scan_res);
1354 if (wpa_s->scan_work) {
1355 struct wpa_radio_work *work = wpa_s->scan_work;
1356 wpa_s->scan_work = NULL;
1357 radio_work_done(work);
1358 }
1359 return ret;
1360 }
1361
1362
1363 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
1364 int new_scan, int own_request)
1365 {
1366 struct wpa_bss *selected;
1367 struct wpa_ssid *ssid = NULL;
1368
1369 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1370
1371 if (selected) {
1372 int skip;
1373 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1374 if (skip) {
1375 if (new_scan)
1376 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1377 return 0;
1378 }
1379
1380 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1381 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1382 return -1;
1383 }
1384 if (new_scan)
1385 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1386 /*
1387 * Do not notify other virtual radios of scan results since we do not
1388 * want them to start other associations at the same time.
1389 */
1390 return 1;
1391 } else {
1392 #ifdef CONFIG_MESH
1393 if (wpa_s->ifmsh) {
1394 wpa_msg(wpa_s, MSG_INFO,
1395 "Avoiding join because we already joined a mesh group");
1396 return 0;
1397 }
1398 #endif /* CONFIG_MESH */
1399 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1400 ssid = wpa_supplicant_pick_new_network(wpa_s);
1401 if (ssid) {
1402 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1403 wpa_supplicant_associate(wpa_s, NULL, ssid);
1404 if (new_scan)
1405 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1406 } else if (own_request) {
1407 /*
1408 * No SSID found. If SCAN results are as a result of
1409 * own scan request and not due to a scan request on
1410 * another shared interface, try another scan.
1411 */
1412 int timeout_sec = wpa_s->scan_interval;
1413 int timeout_usec = 0;
1414 #ifdef CONFIG_P2P
1415 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1)
1416 return 0;
1417
1418 if (wpa_s->p2p_in_provisioning ||
1419 wpa_s->show_group_started ||
1420 wpa_s->p2p_in_invitation) {
1421 /*
1422 * Use shorter wait during P2P Provisioning
1423 * state and during P2P join-a-group operation
1424 * to speed up group formation.
1425 */
1426 timeout_sec = 0;
1427 timeout_usec = 250000;
1428 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1429 timeout_usec);
1430 return 0;
1431 }
1432 #endif /* CONFIG_P2P */
1433 #ifdef CONFIG_INTERWORKING
1434 if (wpa_s->conf->auto_interworking &&
1435 wpa_s->conf->interworking &&
1436 wpa_s->conf->cred) {
1437 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1438 "start ANQP fetch since no matching "
1439 "networks found");
1440 wpa_s->network_select = 1;
1441 wpa_s->auto_network_select = 1;
1442 interworking_start_fetch_anqp(wpa_s);
1443 return 1;
1444 }
1445 #endif /* CONFIG_INTERWORKING */
1446 #ifdef CONFIG_WPS
1447 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
1448 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1449 timeout_sec = 0;
1450 timeout_usec = 500000;
1451 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1452 timeout_usec);
1453 return 0;
1454 }
1455 #endif /* CONFIG_WPS */
1456 if (wpa_supplicant_req_sched_scan(wpa_s))
1457 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1458 timeout_usec);
1459 }
1460 }
1461 return 0;
1462 }
1463
1464
1465 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1466 union wpa_event_data *data)
1467 {
1468 struct wpa_supplicant *ifs;
1469
1470 if (_wpa_supplicant_event_scan_results(wpa_s, data, 1) != 0) {
1471 /*
1472 * If no scan results could be fetched, then no need to
1473 * notify those interfaces that did not actually request
1474 * this scan. Similarly, if scan results started a new operation on this
1475 * interface, do not notify other interfaces to avoid concurrent
1476 * operations during a connection attempt.
1477 */
1478 return;
1479 }
1480
1481 /*
1482 * Check other interfaces to see if they share the same radio. If
1483 * so, they get updated with this same scan info.
1484 */
1485 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1486 radio_list) {
1487 if (ifs != wpa_s) {
1488 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1489 "sibling", ifs->ifname);
1490 _wpa_supplicant_event_scan_results(ifs, data, 0);
1491 }
1492 }
1493 }
1494
1495 #endif /* CONFIG_NO_SCAN_PROCESSING */
1496
1497
1498 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1499 {
1500 #ifdef CONFIG_NO_SCAN_PROCESSING
1501 return -1;
1502 #else /* CONFIG_NO_SCAN_PROCESSING */
1503 struct os_reltime now;
1504
1505 if (wpa_s->last_scan_res_used <= 0)
1506 return -1;
1507
1508 os_get_reltime(&now);
1509 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
1510 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1511 return -1;
1512 }
1513
1514 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
1515 #endif /* CONFIG_NO_SCAN_PROCESSING */
1516 }
1517
1518 #ifdef CONFIG_WNM
1519
1520 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1521 {
1522 struct wpa_supplicant *wpa_s = eloop_ctx;
1523
1524 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1525 return;
1526
1527 if (!wpa_s->no_keep_alive) {
1528 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1529 MAC2STR(wpa_s->bssid));
1530 /* TODO: could skip this if normal data traffic has been sent */
1531 /* TODO: Consider using some more appropriate data frame for
1532 * this */
1533 if (wpa_s->l2)
1534 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1535 (u8 *) "", 0);
1536 }
1537
1538 #ifdef CONFIG_SME
1539 if (wpa_s->sme.bss_max_idle_period) {
1540 unsigned int msec;
1541 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1542 if (msec > 100)
1543 msec -= 100;
1544 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1545 wnm_bss_keep_alive, wpa_s, NULL);
1546 }
1547 #endif /* CONFIG_SME */
1548 }
1549
1550
1551 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1552 const u8 *ies, size_t ies_len)
1553 {
1554 struct ieee802_11_elems elems;
1555
1556 if (ies == NULL)
1557 return;
1558
1559 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1560 return;
1561
1562 #ifdef CONFIG_SME
1563 if (elems.bss_max_idle_period) {
1564 unsigned int msec;
1565 wpa_s->sme.bss_max_idle_period =
1566 WPA_GET_LE16(elems.bss_max_idle_period);
1567 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1568 "TU)%s", wpa_s->sme.bss_max_idle_period,
1569 (elems.bss_max_idle_period[2] & 0x01) ?
1570 " (protected keep-live required)" : "");
1571 if (wpa_s->sme.bss_max_idle_period == 0)
1572 wpa_s->sme.bss_max_idle_period = 1;
1573 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1574 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1575 /* msec times 1000 */
1576 msec = wpa_s->sme.bss_max_idle_period * 1024;
1577 if (msec > 100)
1578 msec -= 100;
1579 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1580 wnm_bss_keep_alive, wpa_s,
1581 NULL);
1582 }
1583 }
1584 #endif /* CONFIG_SME */
1585 }
1586
1587 #endif /* CONFIG_WNM */
1588
1589
1590 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1591 {
1592 #ifdef CONFIG_WNM
1593 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1594 #endif /* CONFIG_WNM */
1595 }
1596
1597
1598 #ifdef CONFIG_INTERWORKING
1599
1600 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1601 size_t len)
1602 {
1603 int res;
1604
1605 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1606 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1607 if (res) {
1608 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1609 }
1610
1611 return res;
1612 }
1613
1614
1615 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1616 const u8 *ies, size_t ies_len)
1617 {
1618 struct ieee802_11_elems elems;
1619
1620 if (ies == NULL)
1621 return;
1622
1623 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1624 return;
1625
1626 if (elems.qos_map_set) {
1627 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1628 elems.qos_map_set_len);
1629 }
1630 }
1631
1632 #endif /* CONFIG_INTERWORKING */
1633
1634
1635 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1636 union wpa_event_data *data)
1637 {
1638 int l, len, found = 0, wpa_found, rsn_found;
1639 const u8 *p;
1640 #ifdef CONFIG_IEEE80211R
1641 u8 bssid[ETH_ALEN];
1642 #endif /* CONFIG_IEEE80211R */
1643
1644 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1645 if (data->assoc_info.req_ies)
1646 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1647 data->assoc_info.req_ies_len);
1648 if (data->assoc_info.resp_ies) {
1649 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1650 data->assoc_info.resp_ies_len);
1651 #ifdef CONFIG_TDLS
1652 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1653 data->assoc_info.resp_ies_len);
1654 #endif /* CONFIG_TDLS */
1655 #ifdef CONFIG_WNM
1656 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1657 data->assoc_info.resp_ies_len);
1658 #endif /* CONFIG_WNM */
1659 #ifdef CONFIG_INTERWORKING
1660 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1661 data->assoc_info.resp_ies_len);
1662 #endif /* CONFIG_INTERWORKING */
1663 }
1664 if (data->assoc_info.beacon_ies)
1665 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1666 data->assoc_info.beacon_ies,
1667 data->assoc_info.beacon_ies_len);
1668 if (data->assoc_info.freq)
1669 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1670 data->assoc_info.freq);
1671
1672 p = data->assoc_info.req_ies;
1673 l = data->assoc_info.req_ies_len;
1674
1675 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1676 while (p && l >= 2) {
1677 len = p[1] + 2;
1678 if (len > l) {
1679 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1680 p, l);
1681 break;
1682 }
1683 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1684 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1685 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1686 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1687 break;
1688 found = 1;
1689 wpa_find_assoc_pmkid(wpa_s);
1690 break;
1691 }
1692 l -= len;
1693 p += len;
1694 }
1695 if (!found && data->assoc_info.req_ies)
1696 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1697
1698 #ifdef CONFIG_IEEE80211R
1699 #ifdef CONFIG_SME
1700 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1701 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1702 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1703 data->assoc_info.resp_ies,
1704 data->assoc_info.resp_ies_len,
1705 bssid) < 0) {
1706 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1707 "Reassociation Response failed");
1708 wpa_supplicant_deauthenticate(
1709 wpa_s, WLAN_REASON_INVALID_IE);
1710 return -1;
1711 }
1712 }
1713
1714 p = data->assoc_info.resp_ies;
1715 l = data->assoc_info.resp_ies_len;
1716
1717 #ifdef CONFIG_WPS_STRICT
1718 if (p && wpa_s->current_ssid &&
1719 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1720 struct wpabuf *wps;
1721 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1722 if (wps == NULL) {
1723 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1724 "include WPS IE in (Re)Association Response");
1725 return -1;
1726 }
1727
1728 if (wps_validate_assoc_resp(wps) < 0) {
1729 wpabuf_free(wps);
1730 wpa_supplicant_deauthenticate(
1731 wpa_s, WLAN_REASON_INVALID_IE);
1732 return -1;
1733 }
1734 wpabuf_free(wps);
1735 }
1736 #endif /* CONFIG_WPS_STRICT */
1737
1738 /* Go through the IEs and make a copy of the MDIE, if present. */
1739 while (p && l >= 2) {
1740 len = p[1] + 2;
1741 if (len > l) {
1742 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1743 p, l);
1744 break;
1745 }
1746 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1747 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1748 wpa_s->sme.ft_used = 1;
1749 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1750 MOBILITY_DOMAIN_ID_LEN);
1751 break;
1752 }
1753 l -= len;
1754 p += len;
1755 }
1756 #endif /* CONFIG_SME */
1757
1758 /* Process FT when SME is in the driver */
1759 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
1760 wpa_ft_is_completed(wpa_s->wpa)) {
1761 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1762 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1763 data->assoc_info.resp_ies,
1764 data->assoc_info.resp_ies_len,
1765 bssid) < 0) {
1766 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1767 "Reassociation Response failed");
1768 wpa_supplicant_deauthenticate(
1769 wpa_s, WLAN_REASON_INVALID_IE);
1770 return -1;
1771 }
1772 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
1773 }
1774
1775 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1776 data->assoc_info.resp_ies_len);
1777 #endif /* CONFIG_IEEE80211R */
1778
1779 /* WPA/RSN IE from Beacon/ProbeResp */
1780 p = data->assoc_info.beacon_ies;
1781 l = data->assoc_info.beacon_ies_len;
1782
1783 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1784 */
1785 wpa_found = rsn_found = 0;
1786 while (p && l >= 2) {
1787 len = p[1] + 2;
1788 if (len > l) {
1789 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1790 p, l);
1791 break;
1792 }
1793 if (!wpa_found &&
1794 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1795 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1796 wpa_found = 1;
1797 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1798 }
1799
1800 if (!rsn_found &&
1801 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1802 rsn_found = 1;
1803 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1804 }
1805
1806 l -= len;
1807 p += len;
1808 }
1809
1810 if (!wpa_found && data->assoc_info.beacon_ies)
1811 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1812 if (!rsn_found && data->assoc_info.beacon_ies)
1813 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1814 if (wpa_found || rsn_found)
1815 wpa_s->ap_ies_from_associnfo = 1;
1816
1817 if (wpa_s->assoc_freq && data->assoc_info.freq &&
1818 wpa_s->assoc_freq != data->assoc_info.freq) {
1819 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1820 "%u to %u MHz",
1821 wpa_s->assoc_freq, data->assoc_info.freq);
1822 wpa_supplicant_update_scan_results(wpa_s);
1823 }
1824
1825 wpa_s->assoc_freq = data->assoc_info.freq;
1826
1827 return 0;
1828 }
1829
1830
1831 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
1832 {
1833 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
1834
1835 if (!wpa_s->current_bss || !wpa_s->current_ssid)
1836 return -1;
1837
1838 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
1839 return 0;
1840
1841 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
1842 WPA_IE_VENDOR_TYPE);
1843 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
1844
1845 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1846 bss_wpa ? 2 + bss_wpa[1] : 0) ||
1847 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1848 bss_rsn ? 2 + bss_rsn[1] : 0))
1849 return -1;
1850
1851 return 0;
1852 }
1853
1854
1855 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1856 union wpa_event_data *data)
1857 {
1858 u8 bssid[ETH_ALEN];
1859 int ft_completed;
1860
1861 #ifdef CONFIG_AP
1862 if (wpa_s->ap_iface) {
1863 if (!data)
1864 return;
1865 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1866 data->assoc_info.addr,
1867 data->assoc_info.req_ies,
1868 data->assoc_info.req_ies_len,
1869 data->assoc_info.reassoc);
1870 return;
1871 }
1872 #endif /* CONFIG_AP */
1873
1874 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1875 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1876 return;
1877
1878 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
1879 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
1880 wpa_supplicant_deauthenticate(
1881 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1882 return;
1883 }
1884
1885 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
1886 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
1887 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1888 MACSTR, MAC2STR(bssid));
1889 random_add_randomness(bssid, ETH_ALEN);
1890 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1891 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1892 wpas_notify_bssid_changed(wpa_s);
1893
1894 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1895 wpa_clear_keys(wpa_s, bssid);
1896 }
1897 if (wpa_supplicant_select_config(wpa_s) < 0) {
1898 wpa_supplicant_deauthenticate(
1899 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1900 return;
1901 }
1902
1903 if (wpa_s->conf->ap_scan == 1 &&
1904 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
1905 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0)
1906 wpa_msg(wpa_s, MSG_WARNING,
1907 "WPA/RSN IEs not updated");
1908 }
1909 }
1910
1911 #ifdef CONFIG_SME
1912 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1913 wpa_s->sme.prev_bssid_set = 1;
1914 wpa_s->sme.last_unprot_disconnect.sec = 0;
1915 #endif /* CONFIG_SME */
1916
1917 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1918 if (wpa_s->current_ssid) {
1919 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1920 * initialized before association, but for other modes,
1921 * initialize PC/SC here, if the current configuration needs
1922 * smartcard or SIM/USIM. */
1923 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1924 }
1925 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1926 if (wpa_s->l2)
1927 l2_packet_notify_auth_start(wpa_s->l2);
1928
1929 /*
1930 * Set portEnabled first to FALSE in order to get EAP state machine out
1931 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1932 * state machine may transit to AUTHENTICATING state based on obsolete
1933 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1934 * AUTHENTICATED without ever giving chance to EAP state machine to
1935 * reset the state.
1936 */
1937 if (!ft_completed) {
1938 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1939 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1940 }
1941 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1942 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1943 /* 802.1X::portControl = Auto */
1944 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1945 wpa_s->eapol_received = 0;
1946 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1947 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1948 (wpa_s->current_ssid &&
1949 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1950 if (wpa_s->current_ssid &&
1951 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
1952 (wpa_s->drv_flags &
1953 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
1954 /*
1955 * Set the key after having received joined-IBSS event
1956 * from the driver.
1957 */
1958 wpa_supplicant_set_wpa_none_key(wpa_s,
1959 wpa_s->current_ssid);
1960 }
1961 wpa_supplicant_cancel_auth_timeout(wpa_s);
1962 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1963 } else if (!ft_completed) {
1964 /* Timeout for receiving the first EAPOL packet */
1965 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1966 }
1967 wpa_supplicant_cancel_scan(wpa_s);
1968
1969 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1970 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1971 /*
1972 * We are done; the driver will take care of RSN 4-way
1973 * handshake.
1974 */
1975 wpa_supplicant_cancel_auth_timeout(wpa_s);
1976 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1977 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1978 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1979 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1980 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1981 /*
1982 * The driver will take care of RSN 4-way handshake, so we need
1983 * to allow EAPOL supplicant to complete its work without
1984 * waiting for WPA supplicant.
1985 */
1986 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1987 } else if (ft_completed) {
1988 /*
1989 * FT protocol completed - make sure EAPOL state machine ends
1990 * up in authenticated.
1991 */
1992 wpa_supplicant_cancel_auth_timeout(wpa_s);
1993 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1994 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1995 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1996 }
1997
1998 wpa_s->last_eapol_matches_bssid = 0;
1999
2000 if (wpa_s->pending_eapol_rx) {
2001 struct os_reltime now, age;
2002 os_get_reltime(&now);
2003 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
2004 if (age.sec == 0 && age.usec < 100000 &&
2005 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2006 0) {
2007 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2008 "frame that was received just before "
2009 "association notification");
2010 wpa_supplicant_rx_eapol(
2011 wpa_s, wpa_s->pending_eapol_rx_src,
2012 wpabuf_head(wpa_s->pending_eapol_rx),
2013 wpabuf_len(wpa_s->pending_eapol_rx));
2014 }
2015 wpabuf_free(wpa_s->pending_eapol_rx);
2016 wpa_s->pending_eapol_rx = NULL;
2017 }
2018
2019 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2020 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
2021 wpa_s->current_ssid &&
2022 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2023 /* Set static WEP keys again */
2024 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2025 }
2026
2027 #ifdef CONFIG_IBSS_RSN
2028 if (wpa_s->current_ssid &&
2029 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2030 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2031 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2032 wpa_s->ibss_rsn == NULL) {
2033 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2034 if (!wpa_s->ibss_rsn) {
2035 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2036 wpa_supplicant_deauthenticate(
2037 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2038 return;
2039 }
2040
2041 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2042 }
2043 #endif /* CONFIG_IBSS_RSN */
2044
2045 wpas_wps_notify_assoc(wpa_s, bssid);
2046
2047 if (data) {
2048 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2049 data->assoc_info.resp_ies_len,
2050 &data->assoc_info.wmm_params);
2051 }
2052 }
2053
2054
2055 static int disconnect_reason_recoverable(u16 reason_code)
2056 {
2057 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2058 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2059 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2060 }
2061
2062
2063 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
2064 u16 reason_code,
2065 int locally_generated)
2066 {
2067 const u8 *bssid;
2068
2069 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2070 /*
2071 * At least Host AP driver and a Prism3 card seemed to be
2072 * generating streams of disconnected events when configuring
2073 * IBSS for WPA-None. Ignore them for now.
2074 */
2075 return;
2076 }
2077
2078 bssid = wpa_s->bssid;
2079 if (is_zero_ether_addr(bssid))
2080 bssid = wpa_s->pending_bssid;
2081
2082 if (!is_zero_ether_addr(bssid) ||
2083 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2084 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2085 " reason=%d%s",
2086 MAC2STR(bssid), reason_code,
2087 locally_generated ? " locally_generated=1" : "");
2088 }
2089 }
2090
2091
2092 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2093 int locally_generated)
2094 {
2095 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2096 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2097 return 0; /* Not in 4-way handshake with PSK */
2098
2099 /*
2100 * It looks like connection was lost while trying to go through PSK
2101 * 4-way handshake. Filter out known disconnection cases that are caused
2102 * by something else than PSK mismatch to avoid confusing reports.
2103 */
2104
2105 if (locally_generated) {
2106 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2107 return 0;
2108 }
2109
2110 return 1;
2111 }
2112
2113
2114 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2115 u16 reason_code,
2116 int locally_generated)
2117 {
2118 const u8 *bssid;
2119 int authenticating;
2120 u8 prev_pending_bssid[ETH_ALEN];
2121 struct wpa_bss *fast_reconnect = NULL;
2122 struct wpa_ssid *fast_reconnect_ssid = NULL;
2123 struct wpa_ssid *last_ssid;
2124
2125 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2126 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
2127
2128 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2129 /*
2130 * At least Host AP driver and a Prism3 card seemed to be
2131 * generating streams of disconnected events when configuring
2132 * IBSS for WPA-None. Ignore them for now.
2133 */
2134 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2135 "IBSS/WPA-None mode");
2136 return;
2137 }
2138
2139 wmm_ac_notify_disassoc(wpa_s);
2140
2141 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
2142 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2143 "pre-shared key may be incorrect");
2144 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2145 return; /* P2P group removed */
2146 wpas_auth_failed(wpa_s, "WRONG_KEY");
2147 }
2148 if (!wpa_s->disconnected &&
2149 (!wpa_s->auto_reconnect_disabled ||
2150 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
2151 wpas_wps_searching(wpa_s))) {
2152 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
2153 "reconnect (wps=%d/%d wpa_state=%d)",
2154 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2155 wpas_wps_searching(wpa_s),
2156 wpa_s->wpa_state);
2157 if (wpa_s->wpa_state == WPA_COMPLETED &&
2158 wpa_s->current_ssid &&
2159 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
2160 !locally_generated &&
2161 disconnect_reason_recoverable(reason_code)) {
2162 /*
2163 * It looks like the AP has dropped association with
2164 * us, but could allow us to get back in. Try to
2165 * reconnect to the same BSS without full scan to save
2166 * time for some common cases.
2167 */
2168 fast_reconnect = wpa_s->current_bss;
2169 fast_reconnect_ssid = wpa_s->current_ssid;
2170 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
2171 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2172 else
2173 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2174 "immediate scan");
2175 } else {
2176 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
2177 "try to re-connect");
2178 wpa_s->reassociate = 0;
2179 wpa_s->disconnected = 1;
2180 wpa_supplicant_cancel_sched_scan(wpa_s);
2181 }
2182 bssid = wpa_s->bssid;
2183 if (is_zero_ether_addr(bssid))
2184 bssid = wpa_s->pending_bssid;
2185 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2186 wpas_connection_failed(wpa_s, bssid);
2187 wpa_sm_notify_disassoc(wpa_s->wpa);
2188 if (locally_generated)
2189 wpa_s->disconnect_reason = -reason_code;
2190 else
2191 wpa_s->disconnect_reason = reason_code;
2192 wpas_notify_disconnect_reason(wpa_s);
2193 if (wpa_supplicant_dynamic_keys(wpa_s)) {
2194 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
2195 wpa_clear_keys(wpa_s, wpa_s->bssid);
2196 }
2197 last_ssid = wpa_s->current_ssid;
2198 wpa_supplicant_mark_disassoc(wpa_s);
2199
2200 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2201 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2202 wpa_s->current_ssid = last_ssid;
2203 }
2204
2205 if (fast_reconnect &&
2206 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2207 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2208 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2209 fast_reconnect->ssid_len) &&
2210 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid)) {
2211 #ifndef CONFIG_NO_SCAN_PROCESSING
2212 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2213 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2214 fast_reconnect_ssid) < 0) {
2215 /* Recover through full scan */
2216 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2217 }
2218 #endif /* CONFIG_NO_SCAN_PROCESSING */
2219 } else if (fast_reconnect) {
2220 /*
2221 * Could not reconnect to the same BSS due to network being
2222 * disabled. Use a new scan to match the alternative behavior
2223 * above, i.e., to continue automatic reconnection attempt in a
2224 * way that enforces disabled network rules.
2225 */
2226 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2227 }
2228 }
2229
2230
2231 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2232 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
2233 {
2234 struct wpa_supplicant *wpa_s = eloop_ctx;
2235
2236 if (!wpa_s->pending_mic_error_report)
2237 return;
2238
2239 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2240 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2241 wpa_s->pending_mic_error_report = 0;
2242 }
2243 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2244
2245
2246 static void
2247 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2248 union wpa_event_data *data)
2249 {
2250 int pairwise;
2251 struct os_reltime t;
2252
2253 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2254 pairwise = (data && data->michael_mic_failure.unicast);
2255 os_get_reltime(&t);
2256 if ((wpa_s->last_michael_mic_error.sec &&
2257 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
2258 wpa_s->pending_mic_error_report) {
2259 if (wpa_s->pending_mic_error_report) {
2260 /*
2261 * Send the pending MIC error report immediately since
2262 * we are going to start countermeasures and AP better
2263 * do the same.
2264 */
2265 wpa_sm_key_request(wpa_s->wpa, 1,
2266 wpa_s->pending_mic_error_pairwise);
2267 }
2268
2269 /* Send the new MIC error report immediately since we are going
2270 * to start countermeasures and AP better do the same.
2271 */
2272 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2273
2274 /* initialize countermeasures */
2275 wpa_s->countermeasures = 1;
2276
2277 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2278
2279 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2280
2281 /*
2282 * Need to wait for completion of request frame. We do not get
2283 * any callback for the message completion, so just wait a
2284 * short while and hope for the best. */
2285 os_sleep(0, 10000);
2286
2287 wpa_drv_set_countermeasures(wpa_s, 1);
2288 wpa_supplicant_deauthenticate(wpa_s,
2289 WLAN_REASON_MICHAEL_MIC_FAILURE);
2290 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2291 wpa_s, NULL);
2292 eloop_register_timeout(60, 0,
2293 wpa_supplicant_stop_countermeasures,
2294 wpa_s, NULL);
2295 /* TODO: mark the AP rejected for 60 second. STA is
2296 * allowed to associate with another AP.. */
2297 } else {
2298 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2299 if (wpa_s->mic_errors_seen) {
2300 /*
2301 * Reduce the effectiveness of Michael MIC error
2302 * reports as a means for attacking against TKIP if
2303 * more than one MIC failure is noticed with the same
2304 * PTK. We delay the transmission of the reports by a
2305 * random time between 0 and 60 seconds in order to
2306 * force the attacker wait 60 seconds before getting
2307 * the information on whether a frame resulted in a MIC
2308 * failure.
2309 */
2310 u8 rval[4];
2311 int sec;
2312
2313 if (os_get_random(rval, sizeof(rval)) < 0)
2314 sec = os_random() % 60;
2315 else
2316 sec = WPA_GET_BE32(rval) % 60;
2317 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2318 "report %d seconds", sec);
2319 wpa_s->pending_mic_error_report = 1;
2320 wpa_s->pending_mic_error_pairwise = pairwise;
2321 eloop_cancel_timeout(
2322 wpa_supplicant_delayed_mic_error_report,
2323 wpa_s, NULL);
2324 eloop_register_timeout(
2325 sec, os_random() % 1000000,
2326 wpa_supplicant_delayed_mic_error_report,
2327 wpa_s, NULL);
2328 } else {
2329 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2330 }
2331 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2332 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2333 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2334 }
2335 wpa_s->last_michael_mic_error = t;
2336 wpa_s->mic_errors_seen++;
2337 }
2338
2339
2340 #ifdef CONFIG_TERMINATE_ONLASTIF
2341 static int any_interfaces(struct wpa_supplicant *head)
2342 {
2343 struct wpa_supplicant *wpa_s;
2344
2345 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2346 if (!wpa_s->interface_removed)
2347 return 1;
2348 return 0;
2349 }
2350 #endif /* CONFIG_TERMINATE_ONLASTIF */
2351
2352
2353 static void
2354 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2355 union wpa_event_data *data)
2356 {
2357 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2358 return;
2359
2360 switch (data->interface_status.ievent) {
2361 case EVENT_INTERFACE_ADDED:
2362 if (!wpa_s->interface_removed)
2363 break;
2364 wpa_s->interface_removed = 0;
2365 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2366 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2367 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2368 "driver after interface was added");
2369 }
2370 break;
2371 case EVENT_INTERFACE_REMOVED:
2372 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2373 wpa_s->interface_removed = 1;
2374 wpa_supplicant_mark_disassoc(wpa_s);
2375 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2376 l2_packet_deinit(wpa_s->l2);
2377 wpa_s->l2 = NULL;
2378 #ifdef CONFIG_TERMINATE_ONLASTIF
2379 /* check if last interface */
2380 if (!any_interfaces(wpa_s->global->ifaces))
2381 eloop_terminate();
2382 #endif /* CONFIG_TERMINATE_ONLASTIF */
2383 break;
2384 }
2385 }
2386
2387
2388 #ifdef CONFIG_PEERKEY
2389 static void
2390 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2391 union wpa_event_data *data)
2392 {
2393 if (data == NULL)
2394 return;
2395 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2396 }
2397 #endif /* CONFIG_PEERKEY */
2398
2399
2400 #ifdef CONFIG_TDLS
2401 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2402 union wpa_event_data *data)
2403 {
2404 if (data == NULL)
2405 return;
2406 switch (data->tdls.oper) {
2407 case TDLS_REQUEST_SETUP:
2408 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2409 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2410 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2411 else
2412 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2413 break;
2414 case TDLS_REQUEST_TEARDOWN:
2415 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2416 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2417 data->tdls.reason_code);
2418 else
2419 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2420 data->tdls.peer);
2421 break;
2422 }
2423 }
2424 #endif /* CONFIG_TDLS */
2425
2426
2427 #ifdef CONFIG_WNM
2428 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2429 union wpa_event_data *data)
2430 {
2431 if (data == NULL)
2432 return;
2433 switch (data->wnm.oper) {
2434 case WNM_OPER_SLEEP:
2435 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2436 "(action=%d, intval=%d)",
2437 data->wnm.sleep_action, data->wnm.sleep_intval);
2438 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2439 data->wnm.sleep_intval, NULL);
2440 break;
2441 }
2442 }
2443 #endif /* CONFIG_WNM */
2444
2445
2446 #ifdef CONFIG_IEEE80211R
2447 static void
2448 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2449 union wpa_event_data *data)
2450 {
2451 if (data == NULL)
2452 return;
2453
2454 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2455 data->ft_ies.ies_len,
2456 data->ft_ies.ft_action,
2457 data->ft_ies.target_ap,
2458 data->ft_ies.ric_ies,
2459 data->ft_ies.ric_ies_len) < 0) {
2460 /* TODO: prevent MLME/driver from trying to associate? */
2461 }
2462 }
2463 #endif /* CONFIG_IEEE80211R */
2464
2465
2466 #ifdef CONFIG_IBSS_RSN
2467 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2468 union wpa_event_data *data)
2469 {
2470 struct wpa_ssid *ssid;
2471 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2472 return;
2473 if (data == NULL)
2474 return;
2475 ssid = wpa_s->current_ssid;
2476 if (ssid == NULL)
2477 return;
2478 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2479 return;
2480
2481 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2482 }
2483
2484
2485 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2486 union wpa_event_data *data)
2487 {
2488 struct wpa_ssid *ssid = wpa_s->current_ssid;
2489
2490 if (ssid == NULL)
2491 return;
2492
2493 /* check if the ssid is correctly configured as IBSS/RSN */
2494 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2495 return;
2496
2497 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2498 data->rx_mgmt.frame_len);
2499 }
2500 #endif /* CONFIG_IBSS_RSN */
2501
2502
2503 #ifdef CONFIG_IEEE80211R
2504 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2505 size_t len)
2506 {
2507 const u8 *sta_addr, *target_ap_addr;
2508 u16 status;
2509
2510 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2511 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2512 return; /* only SME case supported for now */
2513 if (len < 1 + 2 * ETH_ALEN + 2)
2514 return;
2515 if (data[0] != 2)
2516 return; /* Only FT Action Response is supported for now */
2517 sta_addr = data + 1;
2518 target_ap_addr = data + 1 + ETH_ALEN;
2519 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2520 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2521 MACSTR " TargetAP " MACSTR " status %u",
2522 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2523
2524 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2525 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2526 " in FT Action Response", MAC2STR(sta_addr));
2527 return;
2528 }
2529
2530 if (status) {
2531 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2532 "failure (status code %d)", status);
2533 /* TODO: report error to FT code(?) */
2534 return;
2535 }
2536
2537 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2538 len - (1 + 2 * ETH_ALEN + 2), 1,
2539 target_ap_addr, NULL, 0) < 0)
2540 return;
2541
2542 #ifdef CONFIG_SME
2543 {
2544 struct wpa_bss *bss;
2545 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2546 if (bss)
2547 wpa_s->sme.freq = bss->freq;
2548 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2549 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2550 WLAN_AUTH_FT);
2551 }
2552 #endif /* CONFIG_SME */
2553 }
2554 #endif /* CONFIG_IEEE80211R */
2555
2556
2557 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2558 struct unprot_deauth *e)
2559 {
2560 #ifdef CONFIG_IEEE80211W
2561 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2562 "dropped: " MACSTR " -> " MACSTR
2563 " (reason code %u)",
2564 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2565 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2566 #endif /* CONFIG_IEEE80211W */
2567 }
2568
2569
2570 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2571 struct unprot_disassoc *e)
2572 {
2573 #ifdef CONFIG_IEEE80211W
2574 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2575 "dropped: " MACSTR " -> " MACSTR
2576 " (reason code %u)",
2577 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2578 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2579 #endif /* CONFIG_IEEE80211W */
2580 }
2581
2582
2583 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
2584 u16 reason_code, int locally_generated,
2585 const u8 *ie, size_t ie_len, int deauth)
2586 {
2587 #ifdef CONFIG_AP
2588 if (wpa_s->ap_iface && addr) {
2589 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
2590 return;
2591 }
2592
2593 if (wpa_s->ap_iface) {
2594 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
2595 return;
2596 }
2597 #endif /* CONFIG_AP */
2598
2599 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
2600
2601 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
2602 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
2603 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
2604 eapol_sm_failed(wpa_s->eapol))) &&
2605 !wpa_s->eap_expected_failure))
2606 wpas_auth_failed(wpa_s, "AUTH_FAILED");
2607
2608 #ifdef CONFIG_P2P
2609 if (deauth && reason_code > 0) {
2610 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
2611 locally_generated) > 0) {
2612 /*
2613 * The interface was removed, so cannot continue
2614 * processing any additional operations after this.
2615 */
2616 return;
2617 }
2618 }
2619 #endif /* CONFIG_P2P */
2620
2621 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
2622 locally_generated);
2623 }
2624
2625
2626 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
2627 struct disassoc_info *info)
2628 {
2629 u16 reason_code = 0;
2630 int locally_generated = 0;
2631 const u8 *addr = NULL;
2632 const u8 *ie = NULL;
2633 size_t ie_len = 0;
2634
2635 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2636
2637 if (info) {
2638 addr = info->addr;
2639 ie = info->ie;
2640 ie_len = info->ie_len;
2641 reason_code = info->reason_code;
2642 locally_generated = info->locally_generated;
2643 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
2644 locally_generated ? " (locally generated)" : "");
2645 if (addr)
2646 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2647 MAC2STR(addr));
2648 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2649 ie, ie_len);
2650 }
2651
2652 #ifdef CONFIG_AP
2653 if (wpa_s->ap_iface && info && info->addr) {
2654 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
2655 return;
2656 }
2657
2658 if (wpa_s->ap_iface) {
2659 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
2660 return;
2661 }
2662 #endif /* CONFIG_AP */
2663
2664 #ifdef CONFIG_P2P
2665 if (info) {
2666 wpas_p2p_disassoc_notif(
2667 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
2668 locally_generated);
2669 }
2670 #endif /* CONFIG_P2P */
2671
2672 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2673 sme_event_disassoc(wpa_s, info);
2674
2675 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
2676 ie, ie_len, 0);
2677 }
2678
2679
2680 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
2681 struct deauth_info *info)
2682 {
2683 u16 reason_code = 0;
2684 int locally_generated = 0;
2685 const u8 *addr = NULL;
2686 const u8 *ie = NULL;
2687 size_t ie_len = 0;
2688
2689 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
2690
2691 if (info) {
2692 addr = info->addr;
2693 ie = info->ie;
2694 ie_len = info->ie_len;
2695 reason_code = info->reason_code;
2696 locally_generated = info->locally_generated;
2697 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2698 reason_code,
2699 locally_generated ? " (locally generated)" : "");
2700 if (addr) {
2701 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2702 MAC2STR(addr));
2703 }
2704 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
2705 ie, ie_len);
2706 }
2707
2708 wpa_reset_ft_completed(wpa_s->wpa);
2709
2710 wpas_event_disconnect(wpa_s, addr, reason_code,
2711 locally_generated, ie, ie_len, 1);
2712 }
2713
2714
2715 static const char * reg_init_str(enum reg_change_initiator init)
2716 {
2717 switch (init) {
2718 case REGDOM_SET_BY_CORE:
2719 return "CORE";
2720 case REGDOM_SET_BY_USER:
2721 return "USER";
2722 case REGDOM_SET_BY_DRIVER:
2723 return "DRIVER";
2724 case REGDOM_SET_BY_COUNTRY_IE:
2725 return "COUNTRY_IE";
2726 case REGDOM_BEACON_HINT:
2727 return "BEACON_HINT";
2728 }
2729 return "?";
2730 }
2731
2732
2733 static const char * reg_type_str(enum reg_type type)
2734 {
2735 switch (type) {
2736 case REGDOM_TYPE_UNKNOWN:
2737 return "UNKNOWN";
2738 case REGDOM_TYPE_COUNTRY:
2739 return "COUNTRY";
2740 case REGDOM_TYPE_WORLD:
2741 return "WORLD";
2742 case REGDOM_TYPE_CUSTOM_WORLD:
2743 return "CUSTOM_WORLD";
2744 case REGDOM_TYPE_INTERSECTION:
2745 return "INTERSECTION";
2746 }
2747 return "?";
2748 }
2749
2750
2751 static void wpa_supplicant_update_channel_list(
2752 struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
2753 {
2754 struct wpa_supplicant *ifs;
2755
2756 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
2757 reg_init_str(info->initiator), reg_type_str(info->type),
2758 info->alpha2[0] ? " alpha2=" : "",
2759 info->alpha2[0] ? info->alpha2 : "");
2760
2761 if (wpa_s->drv_priv == NULL)
2762 return; /* Ignore event during drv initialization */
2763
2764 free_hw_features(wpa_s);
2765 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(
2766 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags);
2767
2768 wpas_p2p_update_channel_list(wpa_s);
2769
2770 /*
2771 * Check other interfaces to see if they share the same radio. If
2772 * so, they get updated with this same hw mode info.
2773 */
2774 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
2775 radio_list) {
2776 if (ifs != wpa_s) {
2777 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
2778 ifs->ifname);
2779 free_hw_features(ifs);
2780 ifs->hw.modes = wpa_drv_get_hw_feature_data(
2781 ifs, &ifs->hw.num_modes, &ifs->hw.flags);
2782 }
2783 }
2784 }
2785
2786
2787 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
2788 const u8 *frame, size_t len, int freq,
2789 int rssi)
2790 {
2791 const struct ieee80211_mgmt *mgmt;
2792 const u8 *payload;
2793 size_t plen;
2794 u8 category;
2795
2796 if (len < IEEE80211_HDRLEN + 2)
2797 return;
2798
2799 mgmt = (const struct ieee80211_mgmt *) frame;
2800 payload = frame + IEEE80211_HDRLEN;
2801 category = *payload++;
2802 plen = len - IEEE80211_HDRLEN - 1;
2803
2804 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2805 " Category=%u DataLen=%d freq=%d MHz",
2806 MAC2STR(mgmt->sa), category, (int) plen, freq);
2807
2808 if (category == WLAN_ACTION_WMM) {
2809 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
2810 return;
2811 }
2812
2813 #ifdef CONFIG_IEEE80211R
2814 if (category == WLAN_ACTION_FT) {
2815 ft_rx_action(wpa_s, payload, plen);
2816 return;
2817 }
2818 #endif /* CONFIG_IEEE80211R */
2819
2820 #ifdef CONFIG_IEEE80211W
2821 #ifdef CONFIG_SME
2822 if (category == WLAN_ACTION_SA_QUERY) {
2823 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
2824 return;
2825 }
2826 #endif /* CONFIG_SME */
2827 #endif /* CONFIG_IEEE80211W */
2828
2829 #ifdef CONFIG_WNM
2830 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
2831 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
2832 return;
2833 }
2834 #endif /* CONFIG_WNM */
2835
2836 #ifdef CONFIG_GAS
2837 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
2838 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
2839 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
2840 mgmt->u.action.category,
2841 payload, plen, freq) == 0)
2842 return;
2843 #endif /* CONFIG_GAS */
2844
2845 #ifdef CONFIG_TDLS
2846 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
2847 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
2848 wpa_dbg(wpa_s, MSG_DEBUG,
2849 "TDLS: Received Discovery Response from " MACSTR,
2850 MAC2STR(mgmt->sa));
2851 return;
2852 }
2853 #endif /* CONFIG_TDLS */
2854
2855 #ifdef CONFIG_INTERWORKING
2856 if (category == WLAN_ACTION_QOS && plen >= 1 &&
2857 payload[0] == QOS_QOS_MAP_CONFIG) {
2858 const u8 *pos = payload + 1;
2859 size_t qlen = plen - 1;
2860 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
2861 MACSTR, MAC2STR(mgmt->sa));
2862 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
2863 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
2864 pos[1] <= qlen - 2 && pos[1] >= 16)
2865 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
2866 return;
2867 }
2868 #endif /* CONFIG_INTERWORKING */
2869
2870 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
2871 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
2872 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
2873 return;
2874 }
2875
2876 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
2877 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
2878 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
2879 payload + 1, plen - 1,
2880 rssi);
2881 return;
2882 }
2883
2884 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
2885 category, payload, plen, freq);
2886 if (wpa_s->ifmsh)
2887 mesh_mpm_action_rx(wpa_s, mgmt, len);
2888 }
2889
2890
2891 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
2892 union wpa_event_data *event)
2893 {
2894 #ifdef CONFIG_P2P
2895 struct wpa_supplicant *ifs;
2896 #endif /* CONFIG_P2P */
2897 struct wpa_freq_range_list *list;
2898 char *str = NULL;
2899
2900 list = &event->freq_range;
2901
2902 if (list->num)
2903 str = freq_range_list_str(list);
2904 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
2905 str ? str : "");
2906
2907 #ifdef CONFIG_P2P
2908 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
2909 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
2910 __func__);
2911 } else {
2912 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
2913 wpas_p2p_update_channel_list(wpa_s);
2914 }
2915
2916 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
2917 int freq;
2918 if (!ifs->current_ssid ||
2919 !ifs->current_ssid->p2p_group ||
2920 (ifs->current_ssid->mode != WPAS_MODE_P2P_GO &&
2921 ifs->current_ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION))
2922 continue;
2923
2924 freq = ifs->current_ssid->frequency;
2925 if (!freq_range_list_includes(list, freq)) {
2926 wpa_dbg(ifs, MSG_DEBUG, "P2P GO operating frequency %d MHz in safe range",
2927 freq);
2928 continue;
2929 }
2930
2931 wpa_dbg(ifs, MSG_DEBUG, "P2P GO operating in unsafe frequency %d MHz",
2932 freq);
2933 /* TODO: Consider using CSA or removing the group within
2934 * wpa_supplicant */
2935 wpa_msg(ifs, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
2936 }
2937 #endif /* CONFIG_P2P */
2938
2939 os_free(str);
2940 }
2941
2942
2943 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
2944 union wpa_event_data *data)
2945 {
2946 wpa_dbg(wpa_s, MSG_DEBUG,
2947 "Connection authorized by device, previous state %d",
2948 wpa_s->wpa_state);
2949 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
2950 wpa_supplicant_cancel_auth_timeout(wpa_s);
2951 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2952 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2953 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2954 }
2955 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
2956 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
2957 data->assoc_info.ptk_kek);
2958 }
2959
2960
2961 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
2962 union wpa_event_data *data)
2963 {
2964 struct wpa_supplicant *wpa_s = ctx;
2965
2966 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
2967 event != EVENT_INTERFACE_ENABLED &&
2968 event != EVENT_INTERFACE_STATUS &&
2969 event != EVENT_SCHED_SCAN_STOPPED) {
2970 wpa_dbg(wpa_s, MSG_DEBUG,
2971 "Ignore event %s (%d) while interface is disabled",
2972 event_to_string(event), event);
2973 return;
2974 }
2975
2976 #ifndef CONFIG_NO_STDOUT_DEBUG
2977 {
2978 int level = MSG_DEBUG;
2979
2980 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
2981 const struct ieee80211_hdr *hdr;
2982 u16 fc;
2983 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
2984 fc = le_to_host16(hdr->frame_control);
2985 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2986 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
2987 level = MSG_EXCESSIVE;
2988 }
2989
2990 wpa_dbg(wpa_s, level, "Event %s (%d) received",
2991 event_to_string(event), event);
2992 }
2993 #endif /* CONFIG_NO_STDOUT_DEBUG */
2994
2995 switch (event) {
2996 case EVENT_AUTH:
2997 sme_event_auth(wpa_s, data);
2998 break;
2999 case EVENT_ASSOC:
3000 wpa_supplicant_event_assoc(wpa_s, data);
3001 if (data && data->assoc_info.authorized)
3002 wpa_supplicant_event_assoc_auth(wpa_s, data);
3003 break;
3004 case EVENT_DISASSOC:
3005 wpas_event_disassoc(wpa_s,
3006 data ? &data->disassoc_info : NULL);
3007 break;
3008 case EVENT_DEAUTH:
3009 wpas_event_deauth(wpa_s,
3010 data ? &data->deauth_info : NULL);
3011 break;
3012 case EVENT_MICHAEL_MIC_FAILURE:
3013 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3014 break;
3015 #ifndef CONFIG_NO_SCAN_PROCESSING
3016 case EVENT_SCAN_STARTED:
3017 os_get_reltime(&wpa_s->scan_start_time);
3018 if (wpa_s->own_scan_requested) {
3019 struct os_reltime diff;
3020
3021 os_reltime_sub(&wpa_s->scan_start_time,
3022 &wpa_s->scan_trigger_time, &diff);
3023 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3024 diff.sec, diff.usec);
3025 wpa_s->own_scan_requested = 0;
3026 wpa_s->own_scan_running = 1;
3027 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3028 wpa_s->manual_scan_use_id) {
3029 wpa_msg_ctrl(wpa_s, MSG_INFO,
3030 WPA_EVENT_SCAN_STARTED "id=%u",
3031 wpa_s->manual_scan_id);
3032 } else {
3033 wpa_msg_ctrl(wpa_s, MSG_INFO,
3034 WPA_EVENT_SCAN_STARTED);
3035 }
3036 } else {
3037 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3038 wpa_s->external_scan_running = 1;
3039 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
3040 }
3041 break;
3042 case EVENT_SCAN_RESULTS:
3043 if (os_reltime_initialized(&wpa_s->scan_start_time)) {
3044 struct os_reltime now, diff;
3045 os_get_reltime(&now);
3046 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3047 wpa_s->scan_start_time.sec = 0;
3048 wpa_s->scan_start_time.usec = 0;
3049 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3050 diff.sec, diff.usec);
3051 }
3052 wpa_supplicant_event_scan_results(wpa_s, data);
3053 wpa_s->own_scan_running = 0;
3054 wpa_s->external_scan_running = 0;
3055 radio_work_check_next(wpa_s);
3056 break;
3057 #endif /* CONFIG_NO_SCAN_PROCESSING */
3058 case EVENT_ASSOCINFO:
3059 wpa_supplicant_event_associnfo(wpa_s, data);
3060 break;
3061 case EVENT_INTERFACE_STATUS:
3062 wpa_supplicant_event_interface_status(wpa_s, data);
3063 break;
3064 case EVENT_PMKID_CANDIDATE:
3065 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3066 break;
3067 #ifdef CONFIG_PEERKEY
3068 case EVENT_STKSTART:
3069 wpa_supplicant_event_stkstart(wpa_s, data);
3070 break;
3071 #endif /* CONFIG_PEERKEY */
3072 #ifdef CONFIG_TDLS
3073 case EVENT_TDLS:
3074 wpa_supplicant_event_tdls(wpa_s, data);
3075 break;
3076 #endif /* CONFIG_TDLS */
3077 #ifdef CONFIG_WNM
3078 case EVENT_WNM:
3079 wpa_supplicant_event_wnm(wpa_s, data);
3080 break;
3081 #endif /* CONFIG_WNM */
3082 #ifdef CONFIG_IEEE80211R
3083 case EVENT_FT_RESPONSE:
3084 wpa_supplicant_event_ft_response(wpa_s, data);
3085 break;
3086 #endif /* CONFIG_IEEE80211R */
3087 #ifdef CONFIG_IBSS_RSN
3088 case EVENT_IBSS_RSN_START:
3089 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3090 break;
3091 #endif /* CONFIG_IBSS_RSN */
3092 case EVENT_ASSOC_REJECT:
3093 if (data->assoc_reject.bssid)
3094 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3095 "bssid=" MACSTR " status_code=%u",
3096 MAC2STR(data->assoc_reject.bssid),
3097 data->assoc_reject.status_code);
3098 else
3099 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3100 "status_code=%u",
3101 data->assoc_reject.status_code);
3102 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3103 sme_event_assoc_reject(wpa_s, data);
3104 else {
3105 const u8 *bssid = data->assoc_reject.bssid;
3106 if (bssid == NULL || is_zero_ether_addr(bssid))
3107 bssid = wpa_s->pending_bssid;
3108 wpas_connection_failed(wpa_s, bssid);
3109 wpa_supplicant_mark_disassoc(wpa_s);
3110 }
3111 break;
3112 case EVENT_AUTH_TIMED_OUT:
3113 /* It is possible to get this event from earlier connection */
3114 if (wpa_s->current_ssid &&
3115 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3116 wpa_dbg(wpa_s, MSG_DEBUG,
3117 "Ignore AUTH_TIMED_OUT in mesh configuration");
3118 break;
3119 }
3120 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3121 sme_event_auth_timed_out(wpa_s, data);
3122 break;
3123 case EVENT_ASSOC_TIMED_OUT:
3124 /* It is possible to get this event from earlier connection */
3125 if (wpa_s->current_ssid &&
3126 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3127 wpa_dbg(wpa_s, MSG_DEBUG,
3128 "Ignore ASSOC_TIMED_OUT in mesh configuration");
3129 break;
3130 }
3131 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3132 sme_event_assoc_timed_out(wpa_s, data);
3133 break;
3134 case EVENT_TX_STATUS:
3135 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3136 " type=%d stype=%d",
3137 MAC2STR(data->tx_status.dst),
3138 data->tx_status.type, data->tx_status.stype);
3139 #ifdef CONFIG_AP
3140 if (wpa_s->ap_iface == NULL) {
3141 #ifdef CONFIG_OFFCHANNEL
3142 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3143 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
3144 offchannel_send_action_tx_status(
3145 wpa_s, data->tx_status.dst,
3146 data->tx_status.data,
3147 data->tx_status.data_len,
3148 data->tx_status.ack ?
3149 OFFCHANNEL_SEND_ACTION_SUCCESS :
3150 OFFCHANNEL_SEND_ACTION_NO_ACK);
3151 #endif /* CONFIG_OFFCHANNEL */
3152 break;
3153 }
3154 #endif /* CONFIG_AP */
3155 #ifdef CONFIG_OFFCHANNEL
3156 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3157 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
3158 /*
3159 * Catch TX status events for Action frames we sent via group
3160 * interface in GO mode.
3161 */
3162 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3163 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3164 os_memcmp(wpa_s->parent->pending_action_dst,
3165 data->tx_status.dst, ETH_ALEN) == 0) {
3166 offchannel_send_action_tx_status(
3167 wpa_s->parent, data->tx_status.dst,
3168 data->tx_status.data,
3169 data->tx_status.data_len,
3170 data->tx_status.ack ?
3171 OFFCHANNEL_SEND_ACTION_SUCCESS :
3172 OFFCHANNEL_SEND_ACTION_NO_ACK);
3173 break;
3174 }
3175 #endif /* CONFIG_OFFCHANNEL */
3176 #ifdef CONFIG_AP
3177 switch (data->tx_status.type) {
3178 case WLAN_FC_TYPE_MGMT:
3179 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3180 data->tx_status.data_len,
3181 data->tx_status.stype,
3182 data->tx_status.ack);
3183 break;
3184 case WLAN_FC_TYPE_DATA:
3185 ap_tx_status(wpa_s, data->tx_status.dst,
3186 data->tx_status.data,
3187 data->tx_status.data_len,
3188 data->tx_status.ack);
3189 break;
3190 }
3191 #endif /* CONFIG_AP */
3192 break;
3193 #ifdef CONFIG_AP
3194 case EVENT_EAPOL_TX_STATUS:
3195 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3196 data->eapol_tx_status.data,
3197 data->eapol_tx_status.data_len,
3198 data->eapol_tx_status.ack);
3199 break;
3200 case EVENT_DRIVER_CLIENT_POLL_OK:
3201 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3202 break;
3203 case EVENT_RX_FROM_UNKNOWN:
3204 if (wpa_s->ap_iface == NULL)
3205 break;
3206 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3207 data->rx_from_unknown.wds);
3208 break;
3209 case EVENT_CH_SWITCH:
3210 if (!data)
3211 break;
3212 if (!wpa_s->ap_iface) {
3213 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch "
3214 "event in non-AP mode");
3215 break;
3216 }
3217
3218 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3219 data->ch_switch.ht_enabled,
3220 data->ch_switch.ch_offset,
3221 data->ch_switch.ch_width,
3222 data->ch_switch.cf1,
3223 data->ch_switch.cf2);
3224 break;
3225 #endif /* CONFIG_AP */
3226 case EVENT_RX_MGMT: {
3227 u16 fc, stype;
3228 const struct ieee80211_mgmt *mgmt;
3229
3230 #ifdef CONFIG_TESTING_OPTIONS
3231 if (wpa_s->ext_mgmt_frame_handling) {
3232 struct rx_mgmt *rx = &data->rx_mgmt;
3233 size_t hex_len = 2 * rx->frame_len + 1;
3234 char *hex = os_malloc(hex_len);
3235 if (hex) {
3236 wpa_snprintf_hex(hex, hex_len,
3237 rx->frame, rx->frame_len);
3238 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3239 rx->freq, rx->datarate, rx->ssi_signal,
3240 hex);
3241 os_free(hex);
3242 }
3243 break;
3244 }
3245 #endif /* CONFIG_TESTING_OPTIONS */
3246
3247 mgmt = (const struct ieee80211_mgmt *)
3248 data->rx_mgmt.frame;
3249 fc = le_to_host16(mgmt->frame_control);
3250 stype = WLAN_FC_GET_STYPE(fc);
3251
3252 #ifdef CONFIG_AP
3253 if (wpa_s->ap_iface == NULL) {
3254 #endif /* CONFIG_AP */
3255 #ifdef CONFIG_P2P
3256 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3257 data->rx_mgmt.frame_len > 24) {
3258 const u8 *src = mgmt->sa;
3259 const u8 *ie = mgmt->u.probe_req.variable;
3260 size_t ie_len = data->rx_mgmt.frame_len -
3261 (mgmt->u.probe_req.variable -
3262 data->rx_mgmt.frame);
3263 wpas_p2p_probe_req_rx(
3264 wpa_s, src, mgmt->da,
3265 mgmt->bssid, ie, ie_len,
3266 data->rx_mgmt.ssi_signal);
3267 break;
3268 }
3269 #endif /* CONFIG_P2P */
3270 #ifdef CONFIG_IBSS_RSN
3271 if (wpa_s->current_ssid &&
3272 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3273 stype == WLAN_FC_STYPE_AUTH &&
3274 data->rx_mgmt.frame_len >= 30) {
3275 wpa_supplicant_event_ibss_auth(wpa_s, data);
3276 break;
3277 }
3278 #endif /* CONFIG_IBSS_RSN */
3279
3280 if (stype == WLAN_FC_STYPE_ACTION) {
3281 wpas_event_rx_mgmt_action(
3282 wpa_s, data->rx_mgmt.frame,
3283 data->rx_mgmt.frame_len,
3284 data->rx_mgmt.freq,
3285 data->rx_mgmt.ssi_signal);
3286 break;
3287 }
3288
3289 if (wpa_s->ifmsh) {
3290 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3291 break;
3292 }
3293
3294 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3295 "management frame in non-AP mode");
3296 break;
3297 #ifdef CONFIG_AP
3298 }
3299
3300 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3301 data->rx_mgmt.frame_len > 24) {
3302 const u8 *ie = mgmt->u.probe_req.variable;
3303 size_t ie_len = data->rx_mgmt.frame_len -
3304 (mgmt->u.probe_req.variable -
3305 data->rx_mgmt.frame);
3306
3307 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3308 mgmt->bssid, ie, ie_len,
3309 data->rx_mgmt.ssi_signal);
3310 }
3311
3312 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
3313 #endif /* CONFIG_AP */
3314 break;
3315 }
3316 case EVENT_RX_PROBE_REQ:
3317 if (data->rx_probe_req.sa == NULL ||
3318 data->rx_probe_req.ie == NULL)
3319 break;
3320 #ifdef CONFIG_AP
3321 if (wpa_s->ap_iface) {
3322 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3323 data->rx_probe_req.sa,
3324 data->rx_probe_req.da,
3325 data->rx_probe_req.bssid,
3326 data->rx_probe_req.ie,
3327 data->rx_probe_req.ie_len,
3328 data->rx_probe_req.ssi_signal);
3329 break;
3330 }
3331 #endif /* CONFIG_AP */
3332 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
3333 data->rx_probe_req.da,
3334 data->rx_probe_req.bssid,
3335 data->rx_probe_req.ie,
3336 data->rx_probe_req.ie_len,
3337 data->rx_probe_req.ssi_signal);
3338 break;
3339 case EVENT_REMAIN_ON_CHANNEL:
3340 #ifdef CONFIG_OFFCHANNEL
3341 offchannel_remain_on_channel_cb(
3342 wpa_s, data->remain_on_channel.freq,
3343 data->remain_on_channel.duration);
3344 #endif /* CONFIG_OFFCHANNEL */
3345 wpas_p2p_remain_on_channel_cb(
3346 wpa_s, data->remain_on_channel.freq,
3347 data->remain_on_channel.duration);
3348 break;
3349 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
3350 #ifdef CONFIG_OFFCHANNEL
3351 offchannel_cancel_remain_on_channel_cb(
3352 wpa_s, data->remain_on_channel.freq);
3353 #endif /* CONFIG_OFFCHANNEL */
3354 wpas_p2p_cancel_remain_on_channel_cb(
3355 wpa_s, data->remain_on_channel.freq);
3356 break;
3357 case EVENT_EAPOL_RX:
3358 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3359 data->eapol_rx.data,
3360 data->eapol_rx.data_len);
3361 break;
3362 case EVENT_SIGNAL_CHANGE:
3363 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3364 "above=%d signal=%d noise=%d txrate=%d",
3365 data->signal_change.above_threshold,
3366 data->signal_change.current_signal,
3367 data->signal_change.current_noise,
3368 data->signal_change.current_txrate);
3369 bgscan_notify_signal_change(
3370 wpa_s, data->signal_change.above_threshold,
3371 data->signal_change.current_signal,
3372 data->signal_change.current_noise,
3373 data->signal_change.current_txrate);
3374 break;
3375 case EVENT_INTERFACE_ENABLED:
3376 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
3377 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3378 wpa_supplicant_update_mac_addr(wpa_s);
3379 if (wpa_s->p2p_mgmt) {
3380 wpa_supplicant_set_state(wpa_s,
3381 WPA_DISCONNECTED);
3382 break;
3383 }
3384
3385 #ifdef CONFIG_AP
3386 if (!wpa_s->ap_iface) {
3387 wpa_supplicant_set_state(wpa_s,
3388 WPA_DISCONNECTED);
3389 wpa_supplicant_req_scan(wpa_s, 0, 0);
3390 } else
3391 wpa_supplicant_set_state(wpa_s,
3392 WPA_COMPLETED);
3393 #else /* CONFIG_AP */
3394 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3395 wpa_supplicant_req_scan(wpa_s, 0, 0);
3396 #endif /* CONFIG_AP */
3397 }
3398 break;
3399 case EVENT_INTERFACE_DISABLED:
3400 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
3401 #ifdef CONFIG_P2P
3402 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3403 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3404 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
3405 /*
3406 * The interface was externally disabled. Remove
3407 * it assuming an external entity will start a
3408 * new session if needed.
3409 */
3410 wpas_p2p_disconnect(wpa_s);
3411 break;
3412 }
3413 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3414 p2p_in_progress(wpa_s->global->p2p) > 1) {
3415 /* This radio work will be cancelled, so clear P2P
3416 * state as well.
3417 */
3418 p2p_stop_find(wpa_s->global->p2p);
3419 }
3420 #endif /* CONFIG_P2P */
3421
3422 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3423 /*
3424 * Indicate disconnection to keep ctrl_iface events
3425 * consistent.
3426 */
3427 wpa_supplicant_event_disassoc(
3428 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3429 }
3430 wpa_supplicant_mark_disassoc(wpa_s);
3431 radio_remove_works(wpa_s, NULL, 0);
3432
3433 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3434 break;
3435 case EVENT_CHANNEL_LIST_CHANGED:
3436 wpa_supplicant_update_channel_list(
3437 wpa_s, &data->channel_list_changed);
3438 break;
3439 case EVENT_INTERFACE_UNAVAILABLE:
3440 wpas_p2p_interface_unavailable(wpa_s);
3441 break;
3442 case EVENT_BEST_CHANNEL:
3443 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3444 "(%d %d %d)",
3445 data->best_chan.freq_24, data->best_chan.freq_5,
3446 data->best_chan.freq_overall);
3447 wpa_s->best_24_freq = data->best_chan.freq_24;
3448 wpa_s->best_5_freq = data->best_chan.freq_5;
3449 wpa_s->best_overall_freq = data->best_chan.freq_overall;
3450 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3451 data->best_chan.freq_5,
3452 data->best_chan.freq_overall);
3453 break;
3454 case EVENT_UNPROT_DEAUTH:
3455 wpa_supplicant_event_unprot_deauth(wpa_s,
3456 &data->unprot_deauth);
3457 break;
3458 case EVENT_UNPROT_DISASSOC:
3459 wpa_supplicant_event_unprot_disassoc(wpa_s,
3460 &data->unprot_disassoc);
3461 break;
3462 case EVENT_STATION_LOW_ACK:
3463 #ifdef CONFIG_AP
3464 if (wpa_s->ap_iface && data)
3465 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3466 data->low_ack.addr);
3467 #endif /* CONFIG_AP */
3468 #ifdef CONFIG_TDLS
3469 if (data)
3470 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
3471 data->low_ack.addr);
3472 #endif /* CONFIG_TDLS */
3473 break;
3474 case EVENT_IBSS_PEER_LOST:
3475 #ifdef CONFIG_IBSS_RSN
3476 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
3477 #endif /* CONFIG_IBSS_RSN */
3478 break;
3479 case EVENT_DRIVER_GTK_REKEY:
3480 if (os_memcmp(data->driver_gtk_rekey.bssid,
3481 wpa_s->bssid, ETH_ALEN))
3482 break;
3483 if (!wpa_s->wpa)
3484 break;
3485 wpa_sm_update_replay_ctr(wpa_s->wpa,
3486 data->driver_gtk_rekey.replay_ctr);
3487 break;
3488 case EVENT_SCHED_SCAN_STOPPED:
3489 wpa_s->pno = 0;
3490 wpa_s->sched_scanning = 0;
3491 wpa_supplicant_notify_scanning(wpa_s, 0);
3492
3493 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
3494 break;
3495
3496 /*
3497 * Start a new sched scan to continue searching for more SSIDs
3498 * either if timed out or PNO schedule scan is pending.
3499 */
3500 if (wpa_s->sched_scan_timed_out) {
3501 wpa_supplicant_req_sched_scan(wpa_s);
3502 } else if (wpa_s->pno_sched_pending) {
3503 wpa_s->pno_sched_pending = 0;
3504 wpas_start_pno(wpa_s);
3505 }
3506
3507 break;
3508 case EVENT_WPS_BUTTON_PUSHED:
3509 #ifdef CONFIG_WPS
3510 wpas_wps_start_pbc(wpa_s, NULL, 0);
3511 #endif /* CONFIG_WPS */
3512 break;
3513 case EVENT_AVOID_FREQUENCIES:
3514 wpa_supplicant_notify_avoid_freq(wpa_s, data);
3515 break;
3516 case EVENT_CONNECT_FAILED_REASON:
3517 #ifdef CONFIG_AP
3518 if (!wpa_s->ap_iface || !data)
3519 break;
3520 hostapd_event_connect_failed_reason(
3521 wpa_s->ap_iface->bss[0],
3522 data->connect_failed_reason.addr,
3523 data->connect_failed_reason.code);
3524 #endif /* CONFIG_AP */
3525 break;
3526 case EVENT_NEW_PEER_CANDIDATE:
3527 #ifdef CONFIG_MESH
3528 if (!wpa_s->ifmsh || !data)
3529 break;
3530 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
3531 data->mesh_peer.ies,
3532 data->mesh_peer.ie_len);
3533 #endif /* CONFIG_MESH */
3534 break;
3535 default:
3536 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
3537 break;
3538 }
3539 }
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