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Add interface matching support with -M, guarded by CONFIG_MATCH_IFACE
[thirdparty/hostap.git] / wpa_supplicant / events.c
1 /*
2 * WPA Supplicant - Driver event processing
3 * Copyright (c) 2003-2015, 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 "fst/fst.h"
27 #include "wnm_sta.h"
28 #include "notify.h"
29 #include "common/ieee802_11_defs.h"
30 #include "common/ieee802_11_common.h"
31 #include "crypto/random.h"
32 #include "blacklist.h"
33 #include "wpas_glue.h"
34 #include "wps_supplicant.h"
35 #include "ibss_rsn.h"
36 #include "sme.h"
37 #include "gas_query.h"
38 #include "p2p_supplicant.h"
39 #include "bgscan.h"
40 #include "autoscan.h"
41 #include "ap.h"
42 #include "bss.h"
43 #include "scan.h"
44 #include "offchannel.h"
45 #include "interworking.h"
46 #include "mesh.h"
47 #include "mesh_mpm.h"
48 #include "wmm_ac.h"
49
50
51 #ifndef CONFIG_NO_SCAN_PROCESSING
52 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
53 int new_scan, int own_request);
54 #endif /* CONFIG_NO_SCAN_PROCESSING */
55
56
57 static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
58 struct wpa_ssid *ssid)
59 {
60 struct os_reltime now;
61
62 if (ssid == NULL || ssid->disabled_until.sec == 0)
63 return 0;
64
65 os_get_reltime(&now);
66 if (ssid->disabled_until.sec > now.sec)
67 return ssid->disabled_until.sec - now.sec;
68
69 wpas_clear_temp_disabled(wpa_s, ssid, 0);
70
71 return 0;
72 }
73
74
75 #ifndef CONFIG_NO_SCAN_PROCESSING
76 /**
77 * wpas_reenabled_network_time - Time until first network is re-enabled
78 * @wpa_s: Pointer to wpa_supplicant data
79 * Returns: If all enabled networks are temporarily disabled, returns the time
80 * (in sec) until the first network is re-enabled. Otherwise returns 0.
81 *
82 * This function is used in case all enabled networks are temporarily disabled,
83 * in which case it returns the time (in sec) that the first network will be
84 * re-enabled. The function assumes that at least one network is enabled.
85 */
86 static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
87 {
88 struct wpa_ssid *ssid;
89 int disabled_for, res = 0;
90
91 #ifdef CONFIG_INTERWORKING
92 if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
93 wpa_s->conf->cred)
94 return 0;
95 #endif /* CONFIG_INTERWORKING */
96
97 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
98 if (ssid->disabled)
99 continue;
100
101 disabled_for = wpas_temp_disabled(wpa_s, ssid);
102 if (!disabled_for)
103 return 0;
104
105 if (!res || disabled_for < res)
106 res = disabled_for;
107 }
108
109 return res;
110 }
111 #endif /* CONFIG_NO_SCAN_PROCESSING */
112
113
114 void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
115 {
116 struct wpa_supplicant *wpa_s = eloop_ctx;
117
118 if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
119 return;
120
121 wpa_dbg(wpa_s, MSG_DEBUG,
122 "Try to associate due to network getting re-enabled");
123 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
124 wpa_supplicant_cancel_sched_scan(wpa_s);
125 wpa_supplicant_req_scan(wpa_s, 0, 0);
126 }
127 }
128
129
130 static struct wpa_bss * wpa_supplicant_get_new_bss(
131 struct wpa_supplicant *wpa_s, const u8 *bssid)
132 {
133 struct wpa_bss *bss = NULL;
134 struct wpa_ssid *ssid = wpa_s->current_ssid;
135
136 if (ssid->ssid_len > 0)
137 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
138 if (!bss)
139 bss = wpa_bss_get_bssid(wpa_s, bssid);
140
141 return bss;
142 }
143
144
145 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
146 {
147 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
148
149 if (!bss) {
150 wpa_supplicant_update_scan_results(wpa_s);
151
152 /* Get the BSS from the new scan results */
153 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
154 }
155
156 if (bss)
157 wpa_s->current_bss = bss;
158 }
159
160
161 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
162 {
163 struct wpa_ssid *ssid, *old_ssid;
164 u8 drv_ssid[SSID_MAX_LEN];
165 size_t drv_ssid_len;
166 int res;
167
168 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
169 wpa_supplicant_update_current_bss(wpa_s);
170
171 if (wpa_s->current_ssid->ssid_len == 0)
172 return 0; /* current profile still in use */
173 res = wpa_drv_get_ssid(wpa_s, drv_ssid);
174 if (res < 0) {
175 wpa_msg(wpa_s, MSG_INFO,
176 "Failed to read SSID from driver");
177 return 0; /* try to use current profile */
178 }
179 drv_ssid_len = res;
180
181 if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
182 os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
183 drv_ssid_len) == 0)
184 return 0; /* current profile still in use */
185
186 wpa_msg(wpa_s, MSG_DEBUG,
187 "Driver-initiated BSS selection changed the SSID to %s",
188 wpa_ssid_txt(drv_ssid, drv_ssid_len));
189 /* continue selecting a new network profile */
190 }
191
192 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
193 "information");
194 ssid = wpa_supplicant_get_ssid(wpa_s);
195 if (ssid == NULL) {
196 wpa_msg(wpa_s, MSG_INFO,
197 "No network configuration found for the current AP");
198 return -1;
199 }
200
201 if (wpas_network_disabled(wpa_s, ssid)) {
202 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
203 return -1;
204 }
205
206 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
207 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
208 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
209 return -1;
210 }
211
212 res = wpas_temp_disabled(wpa_s, ssid);
213 if (res > 0) {
214 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
215 "disabled for %d second(s)", res);
216 return -1;
217 }
218
219 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
220 "current AP");
221 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
222 u8 wpa_ie[80];
223 size_t wpa_ie_len = sizeof(wpa_ie);
224 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
225 wpa_ie, &wpa_ie_len) < 0)
226 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
227 } else {
228 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
229 }
230
231 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
232 eapol_sm_invalidate_cached_session(wpa_s->eapol);
233 old_ssid = wpa_s->current_ssid;
234 wpa_s->current_ssid = ssid;
235
236 wpa_supplicant_update_current_bss(wpa_s);
237
238 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
239 wpa_supplicant_initiate_eapol(wpa_s);
240 if (old_ssid != wpa_s->current_ssid)
241 wpas_notify_network_changed(wpa_s);
242
243 return 0;
244 }
245
246
247 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
248 {
249 struct wpa_supplicant *wpa_s = eloop_ctx;
250
251 if (wpa_s->countermeasures) {
252 wpa_s->countermeasures = 0;
253 wpa_drv_set_countermeasures(wpa_s, 0);
254 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
255
256 /*
257 * It is possible that the device is sched scanning, which means
258 * that a connection attempt will be done only when we receive
259 * scan results. However, in this case, it would be preferable
260 * to scan and connect immediately, so cancel the sched_scan and
261 * issue a regular scan flow.
262 */
263 wpa_supplicant_cancel_sched_scan(wpa_s);
264 wpa_supplicant_req_scan(wpa_s, 0, 0);
265 }
266 }
267
268
269 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
270 {
271 int bssid_changed;
272
273 wnm_bss_keep_alive_deinit(wpa_s);
274
275 #ifdef CONFIG_IBSS_RSN
276 ibss_rsn_deinit(wpa_s->ibss_rsn);
277 wpa_s->ibss_rsn = NULL;
278 #endif /* CONFIG_IBSS_RSN */
279
280 #ifdef CONFIG_AP
281 wpa_supplicant_ap_deinit(wpa_s);
282 #endif /* CONFIG_AP */
283
284 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
285 return;
286
287 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
288 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
289 os_memset(wpa_s->bssid, 0, ETH_ALEN);
290 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
291 sme_clear_on_disassoc(wpa_s);
292 wpa_s->current_bss = NULL;
293 wpa_s->assoc_freq = 0;
294
295 if (bssid_changed)
296 wpas_notify_bssid_changed(wpa_s);
297
298 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
299 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
300 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
301 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
302 wpa_s->ap_ies_from_associnfo = 0;
303 wpa_s->current_ssid = NULL;
304 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
305 wpa_s->key_mgmt = 0;
306
307 wpas_rrm_reset(wpa_s);
308 wpa_s->wnmsleep_used = 0;
309 }
310
311
312 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
313 {
314 struct wpa_ie_data ie;
315 int pmksa_set = -1;
316 size_t i;
317
318 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
319 ie.pmkid == NULL)
320 return;
321
322 for (i = 0; i < ie.num_pmkid; i++) {
323 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
324 ie.pmkid + i * PMKID_LEN,
325 NULL, NULL, 0);
326 if (pmksa_set == 0) {
327 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
328 break;
329 }
330 }
331
332 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
333 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
334 }
335
336
337 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
338 union wpa_event_data *data)
339 {
340 if (data == NULL) {
341 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
342 "event");
343 return;
344 }
345 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
346 " index=%d preauth=%d",
347 MAC2STR(data->pmkid_candidate.bssid),
348 data->pmkid_candidate.index,
349 data->pmkid_candidate.preauth);
350
351 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
352 data->pmkid_candidate.index,
353 data->pmkid_candidate.preauth);
354 }
355
356
357 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
358 {
359 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
360 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
361 return 0;
362
363 #ifdef IEEE8021X_EAPOL
364 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
365 wpa_s->current_ssid &&
366 !(wpa_s->current_ssid->eapol_flags &
367 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
368 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
369 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
370 * plaintext or static WEP keys). */
371 return 0;
372 }
373 #endif /* IEEE8021X_EAPOL */
374
375 return 1;
376 }
377
378
379 /**
380 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
381 * @wpa_s: pointer to wpa_supplicant data
382 * @ssid: Configuration data for the network
383 * Returns: 0 on success, -1 on failure
384 *
385 * This function is called when starting authentication with a network that is
386 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
387 */
388 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
389 struct wpa_ssid *ssid)
390 {
391 #ifdef IEEE8021X_EAPOL
392 #ifdef PCSC_FUNCS
393 int aka = 0, sim = 0;
394
395 if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
396 wpa_s->scard != NULL || wpa_s->conf->external_sim)
397 return 0;
398
399 if (ssid == NULL || ssid->eap.eap_methods == NULL) {
400 sim = 1;
401 aka = 1;
402 } else {
403 struct eap_method_type *eap = ssid->eap.eap_methods;
404 while (eap->vendor != EAP_VENDOR_IETF ||
405 eap->method != EAP_TYPE_NONE) {
406 if (eap->vendor == EAP_VENDOR_IETF) {
407 if (eap->method == EAP_TYPE_SIM)
408 sim = 1;
409 else if (eap->method == EAP_TYPE_AKA ||
410 eap->method == EAP_TYPE_AKA_PRIME)
411 aka = 1;
412 }
413 eap++;
414 }
415 }
416
417 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
418 sim = 0;
419 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
420 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
421 NULL)
422 aka = 0;
423
424 if (!sim && !aka) {
425 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
426 "use SIM, but neither EAP-SIM nor EAP-AKA are "
427 "enabled");
428 return 0;
429 }
430
431 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
432 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
433
434 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
435 if (wpa_s->scard == NULL) {
436 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
437 "(pcsc-lite)");
438 return -1;
439 }
440 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
441 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
442 #endif /* PCSC_FUNCS */
443 #endif /* IEEE8021X_EAPOL */
444
445 return 0;
446 }
447
448
449 #ifndef CONFIG_NO_SCAN_PROCESSING
450
451 static int has_wep_key(struct wpa_ssid *ssid)
452 {
453 int i;
454
455 for (i = 0; i < NUM_WEP_KEYS; i++) {
456 if (ssid->wep_key_len[i])
457 return 1;
458 }
459
460 return 0;
461 }
462
463
464 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
465 struct wpa_ssid *ssid)
466 {
467 int privacy = 0;
468
469 if (ssid->mixed_cell)
470 return 1;
471
472 #ifdef CONFIG_WPS
473 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
474 return 1;
475 #endif /* CONFIG_WPS */
476
477 if (has_wep_key(ssid))
478 privacy = 1;
479
480 #ifdef IEEE8021X_EAPOL
481 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
482 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
483 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
484 privacy = 1;
485 #endif /* IEEE8021X_EAPOL */
486
487 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
488 privacy = 1;
489
490 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
491 privacy = 1;
492
493 if (bss->caps & IEEE80211_CAP_PRIVACY)
494 return privacy;
495 return !privacy;
496 }
497
498
499 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
500 struct wpa_ssid *ssid,
501 struct wpa_bss *bss)
502 {
503 struct wpa_ie_data ie;
504 int proto_match = 0;
505 const u8 *rsn_ie, *wpa_ie;
506 int ret;
507 int wep_ok;
508
509 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
510 if (ret >= 0)
511 return ret;
512
513 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
514 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
515 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
516 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
517 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
518
519 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
520 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
521 proto_match++;
522
523 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
524 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
525 "failed");
526 break;
527 }
528
529 if (wep_ok &&
530 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
531 {
532 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
533 "in RSN IE");
534 return 1;
535 }
536
537 if (!(ie.proto & ssid->proto)) {
538 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
539 "mismatch");
540 break;
541 }
542
543 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
544 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
545 "cipher mismatch");
546 break;
547 }
548
549 if (!(ie.group_cipher & ssid->group_cipher)) {
550 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
551 "cipher mismatch");
552 break;
553 }
554
555 if (!(ie.key_mgmt & ssid->key_mgmt)) {
556 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
557 "mismatch");
558 break;
559 }
560
561 #ifdef CONFIG_IEEE80211W
562 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
563 wpas_get_ssid_pmf(wpa_s, ssid) ==
564 MGMT_FRAME_PROTECTION_REQUIRED) {
565 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
566 "frame protection");
567 break;
568 }
569 #endif /* CONFIG_IEEE80211W */
570 if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
571 wpas_get_ssid_pmf(wpa_s, ssid) ==
572 NO_MGMT_FRAME_PROTECTION) {
573 wpa_dbg(wpa_s, MSG_DEBUG,
574 " skip RSN IE - no mgmt frame protection enabled but AP requires it");
575 break;
576 }
577 #ifdef CONFIG_MBO
578 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
579 wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND) &&
580 wpas_get_ssid_pmf(wpa_s, ssid) !=
581 NO_MGMT_FRAME_PROTECTION) {
582 wpa_dbg(wpa_s, MSG_DEBUG,
583 " skip RSN IE - no mgmt frame protection enabled on MBO AP");
584 break;
585 }
586 #endif /* CONFIG_MBO */
587
588 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
589 return 1;
590 }
591
592 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
593 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
594 proto_match++;
595
596 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
597 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
598 "failed");
599 break;
600 }
601
602 if (wep_ok &&
603 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
604 {
605 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
606 "in WPA IE");
607 return 1;
608 }
609
610 if (!(ie.proto & ssid->proto)) {
611 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
612 "mismatch");
613 break;
614 }
615
616 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
617 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
618 "cipher mismatch");
619 break;
620 }
621
622 if (!(ie.group_cipher & ssid->group_cipher)) {
623 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
624 "cipher mismatch");
625 break;
626 }
627
628 if (!(ie.key_mgmt & ssid->key_mgmt)) {
629 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
630 "mismatch");
631 break;
632 }
633
634 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
635 return 1;
636 }
637
638 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
639 !rsn_ie) {
640 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
641 return 1;
642 }
643
644 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
645 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
646 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
647 return 0;
648 }
649
650 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
651 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
652 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
653 return 1;
654 }
655
656 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
657 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
658 return 1;
659 }
660
661 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
662 "WPA/WPA2");
663
664 return 0;
665 }
666
667
668 static int freq_allowed(int *freqs, int freq)
669 {
670 int i;
671
672 if (freqs == NULL)
673 return 1;
674
675 for (i = 0; freqs[i]; i++)
676 if (freqs[i] == freq)
677 return 1;
678 return 0;
679 }
680
681
682 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
683 {
684 const struct hostapd_hw_modes *mode = NULL, *modes;
685 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
686 const u8 *rate_ie;
687 int i, j, k;
688
689 if (bss->freq == 0)
690 return 1; /* Cannot do matching without knowing band */
691
692 modes = wpa_s->hw.modes;
693 if (modes == NULL) {
694 /*
695 * The driver does not provide any additional information
696 * about the utilized hardware, so allow the connection attempt
697 * to continue.
698 */
699 return 1;
700 }
701
702 for (i = 0; i < wpa_s->hw.num_modes; i++) {
703 for (j = 0; j < modes[i].num_channels; j++) {
704 int freq = modes[i].channels[j].freq;
705 if (freq == bss->freq) {
706 if (mode &&
707 mode->mode == HOSTAPD_MODE_IEEE80211G)
708 break; /* do not allow 802.11b replace
709 * 802.11g */
710 mode = &modes[i];
711 break;
712 }
713 }
714 }
715
716 if (mode == NULL)
717 return 0;
718
719 for (i = 0; i < (int) sizeof(scan_ie); i++) {
720 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
721 if (rate_ie == NULL)
722 continue;
723
724 for (j = 2; j < rate_ie[1] + 2; j++) {
725 int flagged = !!(rate_ie[j] & 0x80);
726 int r = (rate_ie[j] & 0x7f) * 5;
727
728 /*
729 * IEEE Std 802.11n-2009 7.3.2.2:
730 * The new BSS Membership selector value is encoded
731 * like a legacy basic rate, but it is not a rate and
732 * only indicates if the BSS members are required to
733 * support the mandatory features of Clause 20 [HT PHY]
734 * in order to join the BSS.
735 */
736 if (flagged && ((rate_ie[j] & 0x7f) ==
737 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
738 if (!ht_supported(mode)) {
739 wpa_dbg(wpa_s, MSG_DEBUG,
740 " hardware does not support "
741 "HT PHY");
742 return 0;
743 }
744 continue;
745 }
746
747 /* There's also a VHT selector for 802.11ac */
748 if (flagged && ((rate_ie[j] & 0x7f) ==
749 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
750 if (!vht_supported(mode)) {
751 wpa_dbg(wpa_s, MSG_DEBUG,
752 " hardware does not support "
753 "VHT PHY");
754 return 0;
755 }
756 continue;
757 }
758
759 if (!flagged)
760 continue;
761
762 /* check for legacy basic rates */
763 for (k = 0; k < mode->num_rates; k++) {
764 if (mode->rates[k] == r)
765 break;
766 }
767 if (k == mode->num_rates) {
768 /*
769 * IEEE Std 802.11-2007 7.3.2.2 demands that in
770 * order to join a BSS all required rates
771 * have to be supported by the hardware.
772 */
773 wpa_dbg(wpa_s, MSG_DEBUG,
774 " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
775 r / 10, r % 10,
776 bss->freq, mode->mode, mode->num_rates);
777 return 0;
778 }
779 }
780 }
781
782 return 1;
783 }
784
785
786 /*
787 * Test whether BSS is in an ESS.
788 * This is done differently in DMG (60 GHz) and non-DMG bands
789 */
790 static int bss_is_ess(struct wpa_bss *bss)
791 {
792 if (bss_is_dmg(bss)) {
793 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
794 IEEE80211_CAP_DMG_AP;
795 }
796
797 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
798 IEEE80211_CAP_ESS);
799 }
800
801
802 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
803 {
804 size_t i;
805
806 for (i = 0; i < ETH_ALEN; i++) {
807 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
808 return 0;
809 }
810 return 1;
811 }
812
813
814 static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
815 {
816 size_t i;
817
818 for (i = 0; i < num; i++) {
819 const u8 *a = list + i * ETH_ALEN * 2;
820 const u8 *m = a + ETH_ALEN;
821
822 if (match_mac_mask(a, addr, m))
823 return 1;
824 }
825 return 0;
826 }
827
828
829 struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
830 int i, struct wpa_bss *bss,
831 struct wpa_ssid *group,
832 int only_first_ssid)
833 {
834 u8 wpa_ie_len, rsn_ie_len;
835 int wpa;
836 struct wpa_blacklist *e;
837 const u8 *ie;
838 struct wpa_ssid *ssid;
839 int osen;
840 #ifdef CONFIG_MBO
841 const u8 *assoc_disallow;
842 #endif /* CONFIG_MBO */
843
844 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
845 wpa_ie_len = ie ? ie[1] : 0;
846
847 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
848 rsn_ie_len = ie ? ie[1] : 0;
849
850 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
851 osen = ie != NULL;
852
853 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
854 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
855 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
856 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, bss->freq,
857 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "",
858 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
859 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ?
860 " p2p" : "",
861 osen ? " osen=1" : "");
862
863 e = wpa_blacklist_get(wpa_s, bss->bssid);
864 if (e) {
865 int limit = 1;
866 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
867 /*
868 * When only a single network is enabled, we can
869 * trigger blacklisting on the first failure. This
870 * should not be done with multiple enabled networks to
871 * avoid getting forced to move into a worse ESS on
872 * single error if there are no other BSSes of the
873 * current ESS.
874 */
875 limit = 0;
876 }
877 if (e->count > limit) {
878 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
879 "(count=%d limit=%d)", e->count, limit);
880 return NULL;
881 }
882 }
883
884 if (bss->ssid_len == 0) {
885 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
886 return NULL;
887 }
888
889 if (disallowed_bssid(wpa_s, bss->bssid)) {
890 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
891 return NULL;
892 }
893
894 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
895 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
896 return NULL;
897 }
898
899 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
900
901 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
902 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
903 int res;
904
905 if (wpas_network_disabled(wpa_s, ssid)) {
906 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
907 continue;
908 }
909
910 res = wpas_temp_disabled(wpa_s, ssid);
911 if (res > 0) {
912 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
913 "temporarily for %d second(s)", res);
914 continue;
915 }
916
917 #ifdef CONFIG_WPS
918 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
919 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
920 "(WPS)");
921 continue;
922 }
923
924 if (wpa && ssid->ssid_len == 0 &&
925 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
926 check_ssid = 0;
927
928 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
929 /* Only allow wildcard SSID match if an AP
930 * advertises active WPS operation that matches
931 * with our mode. */
932 check_ssid = 1;
933 if (ssid->ssid_len == 0 &&
934 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
935 check_ssid = 0;
936 }
937 #endif /* CONFIG_WPS */
938
939 if (ssid->bssid_set && ssid->ssid_len == 0 &&
940 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
941 check_ssid = 0;
942
943 if (check_ssid &&
944 (bss->ssid_len != ssid->ssid_len ||
945 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
946 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
947 continue;
948 }
949
950 if (ssid->bssid_set &&
951 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
952 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
953 continue;
954 }
955
956 /* check blacklist */
957 if (ssid->num_bssid_blacklist &&
958 addr_in_list(bss->bssid, ssid->bssid_blacklist,
959 ssid->num_bssid_blacklist)) {
960 wpa_dbg(wpa_s, MSG_DEBUG,
961 " skip - BSSID blacklisted");
962 continue;
963 }
964
965 /* if there is a whitelist, only accept those APs */
966 if (ssid->num_bssid_whitelist &&
967 !addr_in_list(bss->bssid, ssid->bssid_whitelist,
968 ssid->num_bssid_whitelist)) {
969 wpa_dbg(wpa_s, MSG_DEBUG,
970 " skip - BSSID not in whitelist");
971 continue;
972 }
973
974 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
975 continue;
976
977 if (!osen && !wpa &&
978 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
979 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
980 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
981 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
982 "not allowed");
983 continue;
984 }
985
986 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
987 has_wep_key(ssid)) {
988 wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block");
989 continue;
990 }
991
992 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) {
993 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-OSEN network "
994 "not allowed");
995 continue;
996 }
997
998 if (!wpa_supplicant_match_privacy(bss, ssid)) {
999 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
1000 "mismatch");
1001 continue;
1002 }
1003
1004 if (!bss_is_ess(bss) && !bss_is_pbss(bss)) {
1005 wpa_dbg(wpa_s, MSG_DEBUG, " skip - neither ESS nor PBSS network");
1006 continue;
1007 }
1008
1009 if (ssid->pbss != bss_is_pbss(bss)) {
1010 wpa_dbg(wpa_s, MSG_DEBUG, " skip - PBSS mismatch (ssid %d bss %d)",
1011 ssid->pbss, bss_is_pbss(bss));
1012 continue;
1013 }
1014
1015 if (!freq_allowed(ssid->freq_list, bss->freq)) {
1016 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
1017 "allowed");
1018 continue;
1019 }
1020
1021 if (!rate_match(wpa_s, bss)) {
1022 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
1023 "not match");
1024 continue;
1025 }
1026
1027 #ifdef CONFIG_P2P
1028 if (ssid->p2p_group &&
1029 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1030 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1031 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
1032 continue;
1033 }
1034
1035 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1036 struct wpabuf *p2p_ie;
1037 u8 dev_addr[ETH_ALEN];
1038
1039 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1040 if (ie == NULL) {
1041 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element");
1042 continue;
1043 }
1044 p2p_ie = wpa_bss_get_vendor_ie_multi(
1045 bss, P2P_IE_VENDOR_TYPE);
1046 if (p2p_ie == NULL) {
1047 wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element");
1048 continue;
1049 }
1050
1051 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
1052 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
1053 ETH_ALEN) != 0) {
1054 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element");
1055 wpabuf_free(p2p_ie);
1056 continue;
1057 }
1058 wpabuf_free(p2p_ie);
1059 }
1060
1061 /*
1062 * TODO: skip the AP if its P2P IE has Group Formation
1063 * bit set in the P2P Group Capability Bitmap and we
1064 * are not in Group Formation with that device.
1065 */
1066 #endif /* CONFIG_P2P */
1067
1068 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time))
1069 {
1070 struct os_reltime diff;
1071
1072 os_reltime_sub(&wpa_s->scan_min_time,
1073 &bss->last_update, &diff);
1074 wpa_dbg(wpa_s, MSG_DEBUG,
1075 " skip - scan result not recent enough (%u.%06u seconds too old)",
1076 (unsigned int) diff.sec,
1077 (unsigned int) diff.usec);
1078 continue;
1079 }
1080 #ifdef CONFIG_MBO
1081 assoc_disallow = wpas_mbo_get_bss_attr(
1082 bss, MBO_ATTR_ID_ASSOC_DISALLOW);
1083 if (assoc_disallow && assoc_disallow[1] >= 1) {
1084 wpa_dbg(wpa_s, MSG_DEBUG,
1085 " skip - MBO association disallowed (reason %u)",
1086 assoc_disallow[2]);
1087 continue;
1088 }
1089
1090 if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) {
1091 wpa_dbg(wpa_s, MSG_DEBUG,
1092 " skip - MBO retry delay has not passed yet");
1093 continue;
1094 }
1095 #endif /* CONFIG_MBO */
1096
1097 /* Matching configuration found */
1098 return ssid;
1099 }
1100
1101 /* No matching configuration found */
1102 return NULL;
1103 }
1104
1105
1106 static struct wpa_bss *
1107 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1108 struct wpa_ssid *group,
1109 struct wpa_ssid **selected_ssid,
1110 int only_first_ssid)
1111 {
1112 unsigned int i;
1113
1114 if (only_first_ssid)
1115 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1116 group->id);
1117 else
1118 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1119 group->priority);
1120
1121 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1122 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1123 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1124 only_first_ssid);
1125 if (!*selected_ssid)
1126 continue;
1127 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
1128 " ssid='%s'",
1129 MAC2STR(bss->bssid),
1130 wpa_ssid_txt(bss->ssid, bss->ssid_len));
1131 return bss;
1132 }
1133
1134 return NULL;
1135 }
1136
1137
1138 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1139 struct wpa_ssid **selected_ssid)
1140 {
1141 struct wpa_bss *selected = NULL;
1142 int prio;
1143 struct wpa_ssid *next_ssid = NULL;
1144 struct wpa_ssid *ssid;
1145
1146 if (wpa_s->last_scan_res == NULL ||
1147 wpa_s->last_scan_res_used == 0)
1148 return NULL; /* no scan results from last update */
1149
1150 if (wpa_s->next_ssid) {
1151 /* check that next_ssid is still valid */
1152 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1153 if (ssid == wpa_s->next_ssid)
1154 break;
1155 }
1156 next_ssid = ssid;
1157 wpa_s->next_ssid = NULL;
1158 }
1159
1160 while (selected == NULL) {
1161 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1162 if (next_ssid && next_ssid->priority ==
1163 wpa_s->conf->pssid[prio]->priority) {
1164 selected = wpa_supplicant_select_bss(
1165 wpa_s, next_ssid, selected_ssid, 1);
1166 if (selected)
1167 break;
1168 }
1169 selected = wpa_supplicant_select_bss(
1170 wpa_s, wpa_s->conf->pssid[prio],
1171 selected_ssid, 0);
1172 if (selected)
1173 break;
1174 }
1175
1176 if (selected == NULL && wpa_s->blacklist &&
1177 !wpa_s->countermeasures) {
1178 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1179 "blacklist and try again");
1180 wpa_blacklist_clear(wpa_s);
1181 wpa_s->blacklist_cleared++;
1182 } else if (selected == NULL)
1183 break;
1184 }
1185
1186 ssid = *selected_ssid;
1187 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1188 !ssid->passphrase && !ssid->ext_psk) {
1189 const char *field_name, *txt = NULL;
1190
1191 wpa_dbg(wpa_s, MSG_DEBUG,
1192 "PSK/passphrase not yet available for the selected network");
1193
1194 wpas_notify_network_request(wpa_s, ssid,
1195 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1196
1197 field_name = wpa_supplicant_ctrl_req_to_string(
1198 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1199 if (field_name == NULL)
1200 return NULL;
1201
1202 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1203
1204 selected = NULL;
1205 }
1206
1207 return selected;
1208 }
1209
1210
1211 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1212 int timeout_sec, int timeout_usec)
1213 {
1214 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1215 /*
1216 * No networks are enabled; short-circuit request so
1217 * we don't wait timeout seconds before transitioning
1218 * to INACTIVE state.
1219 */
1220 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1221 "since there are no enabled networks");
1222 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1223 return;
1224 }
1225
1226 wpa_s->scan_for_connection = 1;
1227 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1228 }
1229
1230
1231 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1232 struct wpa_bss *selected,
1233 struct wpa_ssid *ssid)
1234 {
1235 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1236 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1237 "PBC session overlap");
1238 wpas_notify_wps_event_pbc_overlap(wpa_s);
1239 #ifdef CONFIG_P2P
1240 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1241 wpa_s->p2p_in_provisioning) {
1242 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1243 wpa_s, NULL);
1244 return -1;
1245 }
1246 #endif /* CONFIG_P2P */
1247
1248 #ifdef CONFIG_WPS
1249 wpas_wps_pbc_overlap(wpa_s);
1250 wpas_wps_cancel(wpa_s);
1251 #endif /* CONFIG_WPS */
1252 return -1;
1253 }
1254
1255 wpa_msg(wpa_s, MSG_DEBUG,
1256 "Considering connect request: reassociate: %d selected: "
1257 MACSTR " bssid: " MACSTR " pending: " MACSTR
1258 " wpa_state: %s ssid=%p current_ssid=%p",
1259 wpa_s->reassociate, MAC2STR(selected->bssid),
1260 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1261 wpa_supplicant_state_txt(wpa_s->wpa_state),
1262 ssid, wpa_s->current_ssid);
1263
1264 /*
1265 * Do not trigger new association unless the BSSID has changed or if
1266 * reassociation is requested. If we are in process of associating with
1267 * the selected BSSID, do not trigger new attempt.
1268 */
1269 if (wpa_s->reassociate ||
1270 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1271 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1272 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1273 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1274 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1275 0) ||
1276 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1277 ssid != wpa_s->current_ssid)))) {
1278 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1279 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1280 return 0;
1281 }
1282 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1283 MAC2STR(selected->bssid));
1284 wpa_supplicant_associate(wpa_s, selected, ssid);
1285 } else {
1286 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1287 "connect with the selected AP");
1288 }
1289
1290 return 0;
1291 }
1292
1293
1294 static struct wpa_ssid *
1295 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1296 {
1297 int prio;
1298 struct wpa_ssid *ssid;
1299
1300 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1301 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1302 {
1303 if (wpas_network_disabled(wpa_s, ssid))
1304 continue;
1305 if (ssid->mode == IEEE80211_MODE_IBSS ||
1306 ssid->mode == IEEE80211_MODE_AP ||
1307 ssid->mode == IEEE80211_MODE_MESH)
1308 return ssid;
1309 }
1310 }
1311 return NULL;
1312 }
1313
1314
1315 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1316 * on BSS added and BSS changed events */
1317 static void wpa_supplicant_rsn_preauth_scan_results(
1318 struct wpa_supplicant *wpa_s)
1319 {
1320 struct wpa_bss *bss;
1321
1322 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1323 return;
1324
1325 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1326 const u8 *ssid, *rsn;
1327
1328 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1329 if (ssid == NULL)
1330 continue;
1331
1332 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1333 if (rsn == NULL)
1334 continue;
1335
1336 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1337 }
1338
1339 }
1340
1341
1342 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1343 struct wpa_bss *selected,
1344 struct wpa_ssid *ssid)
1345 {
1346 struct wpa_bss *current_bss = NULL;
1347 #ifndef CONFIG_NO_ROAMING
1348 int min_diff;
1349 #endif /* CONFIG_NO_ROAMING */
1350
1351 if (wpa_s->reassociate)
1352 return 1; /* explicit request to reassociate */
1353 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1354 return 1; /* we are not associated; continue */
1355 if (wpa_s->current_ssid == NULL)
1356 return 1; /* unknown current SSID */
1357 if (wpa_s->current_ssid != ssid)
1358 return 1; /* different network block */
1359
1360 if (wpas_driver_bss_selection(wpa_s))
1361 return 0; /* Driver-based roaming */
1362
1363 if (wpa_s->current_ssid->ssid)
1364 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1365 wpa_s->current_ssid->ssid,
1366 wpa_s->current_ssid->ssid_len);
1367 if (!current_bss)
1368 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1369
1370 if (!current_bss)
1371 return 1; /* current BSS not seen in scan results */
1372
1373 if (current_bss == selected)
1374 return 0;
1375
1376 if (selected->last_update_idx > current_bss->last_update_idx)
1377 return 1; /* current BSS not seen in the last scan */
1378
1379 #ifndef CONFIG_NO_ROAMING
1380 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1381 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1382 " level=%d snr=%d est_throughput=%u",
1383 MAC2STR(current_bss->bssid), current_bss->level,
1384 current_bss->snr, current_bss->est_throughput);
1385 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1386 " level=%d snr=%d est_throughput=%u",
1387 MAC2STR(selected->bssid), selected->level,
1388 selected->snr, selected->est_throughput);
1389
1390 if (wpa_s->current_ssid->bssid_set &&
1391 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1392 0) {
1393 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1394 "has preferred BSSID");
1395 return 1;
1396 }
1397
1398 if (selected->est_throughput > current_bss->est_throughput + 5000) {
1399 wpa_dbg(wpa_s, MSG_DEBUG,
1400 "Allow reassociation - selected BSS has better estimated throughput");
1401 return 1;
1402 }
1403
1404 if (current_bss->level < 0 && current_bss->level > selected->level) {
1405 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1406 "signal level");
1407 return 0;
1408 }
1409
1410 min_diff = 2;
1411 if (current_bss->level < 0) {
1412 if (current_bss->level < -85)
1413 min_diff = 1;
1414 else if (current_bss->level < -80)
1415 min_diff = 2;
1416 else if (current_bss->level < -75)
1417 min_diff = 3;
1418 else if (current_bss->level < -70)
1419 min_diff = 4;
1420 else
1421 min_diff = 5;
1422 }
1423 if (abs(current_bss->level - selected->level) < min_diff) {
1424 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1425 "in signal level");
1426 return 0;
1427 }
1428
1429 return 1;
1430 #else /* CONFIG_NO_ROAMING */
1431 return 0;
1432 #endif /* CONFIG_NO_ROAMING */
1433 }
1434
1435
1436 /* Return != 0 if no scan results could be fetched or if scan results should not
1437 * be shared with other virtual interfaces. */
1438 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1439 union wpa_event_data *data,
1440 int own_request)
1441 {
1442 struct wpa_scan_results *scan_res = NULL;
1443 int ret = 0;
1444 int ap = 0;
1445 #ifndef CONFIG_NO_RANDOM_POOL
1446 size_t i, num;
1447 #endif /* CONFIG_NO_RANDOM_POOL */
1448
1449 #ifdef CONFIG_AP
1450 if (wpa_s->ap_iface)
1451 ap = 1;
1452 #endif /* CONFIG_AP */
1453
1454 wpa_supplicant_notify_scanning(wpa_s, 0);
1455
1456 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1457 data ? &data->scan_info :
1458 NULL, 1);
1459 if (scan_res == NULL) {
1460 if (wpa_s->conf->ap_scan == 2 || ap ||
1461 wpa_s->scan_res_handler == scan_only_handler)
1462 return -1;
1463 if (!own_request)
1464 return -1;
1465 if (data && data->scan_info.external_scan)
1466 return -1;
1467 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1468 "scanning again");
1469 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1470 ret = -1;
1471 goto scan_work_done;
1472 }
1473
1474 #ifndef CONFIG_NO_RANDOM_POOL
1475 num = scan_res->num;
1476 if (num > 10)
1477 num = 10;
1478 for (i = 0; i < num; i++) {
1479 u8 buf[5];
1480 struct wpa_scan_res *res = scan_res->res[i];
1481 buf[0] = res->bssid[5];
1482 buf[1] = res->qual & 0xff;
1483 buf[2] = res->noise & 0xff;
1484 buf[3] = res->level & 0xff;
1485 buf[4] = res->tsf & 0xff;
1486 random_add_randomness(buf, sizeof(buf));
1487 }
1488 #endif /* CONFIG_NO_RANDOM_POOL */
1489
1490 if (own_request && wpa_s->scan_res_handler &&
1491 !(data && data->scan_info.external_scan)) {
1492 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1493 struct wpa_scan_results *scan_res);
1494
1495 scan_res_handler = wpa_s->scan_res_handler;
1496 wpa_s->scan_res_handler = NULL;
1497 scan_res_handler(wpa_s, scan_res);
1498 ret = -2;
1499 goto scan_work_done;
1500 }
1501
1502 if (ap) {
1503 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1504 #ifdef CONFIG_AP
1505 if (wpa_s->ap_iface->scan_cb)
1506 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1507 #endif /* CONFIG_AP */
1508 goto scan_work_done;
1509 }
1510
1511 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1512 wpa_s->own_scan_running,
1513 data ? data->scan_info.external_scan : 0);
1514 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1515 wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
1516 own_request && !(data && data->scan_info.external_scan)) {
1517 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1518 wpa_s->manual_scan_id);
1519 wpa_s->manual_scan_use_id = 0;
1520 } else {
1521 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1522 }
1523 wpas_notify_scan_results(wpa_s);
1524
1525 wpas_notify_scan_done(wpa_s, 1);
1526
1527 if (data && data->scan_info.external_scan) {
1528 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1529 wpa_scan_results_free(scan_res);
1530 return 0;
1531 }
1532
1533 if (wnm_scan_process(wpa_s, 1) > 0)
1534 goto scan_work_done;
1535
1536 if (sme_proc_obss_scan(wpa_s) > 0)
1537 goto scan_work_done;
1538
1539 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1540 goto scan_work_done;
1541
1542 if (autoscan_notify_scan(wpa_s, scan_res))
1543 goto scan_work_done;
1544
1545 if (wpa_s->disconnected) {
1546 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1547 goto scan_work_done;
1548 }
1549
1550 if (!wpas_driver_bss_selection(wpa_s) &&
1551 bgscan_notify_scan(wpa_s, scan_res) == 1)
1552 goto scan_work_done;
1553
1554 wpas_wps_update_ap_info(wpa_s, scan_res);
1555
1556 if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
1557 wpa_s->wpa_state < WPA_COMPLETED)
1558 goto scan_work_done;
1559
1560 wpa_scan_results_free(scan_res);
1561
1562 if (own_request && wpa_s->scan_work) {
1563 struct wpa_radio_work *work = wpa_s->scan_work;
1564 wpa_s->scan_work = NULL;
1565 radio_work_done(work);
1566 }
1567
1568 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
1569
1570 scan_work_done:
1571 wpa_scan_results_free(scan_res);
1572 if (own_request && wpa_s->scan_work) {
1573 struct wpa_radio_work *work = wpa_s->scan_work;
1574 wpa_s->scan_work = NULL;
1575 radio_work_done(work);
1576 }
1577 return ret;
1578 }
1579
1580
1581 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
1582 int new_scan, int own_request)
1583 {
1584 struct wpa_bss *selected;
1585 struct wpa_ssid *ssid = NULL;
1586 int time_to_reenable = wpas_reenabled_network_time(wpa_s);
1587
1588 if (time_to_reenable > 0) {
1589 wpa_dbg(wpa_s, MSG_DEBUG,
1590 "Postpone network selection by %d seconds since all networks are disabled",
1591 time_to_reenable);
1592 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
1593 eloop_register_timeout(time_to_reenable, 0,
1594 wpas_network_reenabled, wpa_s, NULL);
1595 return 0;
1596 }
1597
1598 if (wpa_s->p2p_mgmt)
1599 return 0; /* no normal connection on p2p_mgmt interface */
1600
1601 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1602
1603 if (selected) {
1604 int skip;
1605 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1606 if (skip) {
1607 if (new_scan)
1608 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1609 return 0;
1610 }
1611
1612 if (ssid != wpa_s->current_ssid &&
1613 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1614 wpa_s->own_disconnect_req = 1;
1615 wpa_supplicant_deauthenticate(
1616 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1617 }
1618
1619 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1620 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1621 return -1;
1622 }
1623 if (new_scan)
1624 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1625 /*
1626 * Do not notify other virtual radios of scan results since we do not
1627 * want them to start other associations at the same time.
1628 */
1629 return 1;
1630 } else {
1631 #ifdef CONFIG_MESH
1632 if (wpa_s->ifmsh) {
1633 wpa_msg(wpa_s, MSG_INFO,
1634 "Avoiding join because we already joined a mesh group");
1635 return 0;
1636 }
1637 #endif /* CONFIG_MESH */
1638 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1639 ssid = wpa_supplicant_pick_new_network(wpa_s);
1640 if (ssid) {
1641 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1642 wpa_supplicant_associate(wpa_s, NULL, ssid);
1643 if (new_scan)
1644 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1645 } else if (own_request) {
1646 /*
1647 * No SSID found. If SCAN results are as a result of
1648 * own scan request and not due to a scan request on
1649 * another shared interface, try another scan.
1650 */
1651 int timeout_sec = wpa_s->scan_interval;
1652 int timeout_usec = 0;
1653 #ifdef CONFIG_P2P
1654 int res;
1655
1656 res = wpas_p2p_scan_no_go_seen(wpa_s);
1657 if (res == 2)
1658 return 2;
1659 if (res == 1)
1660 return 0;
1661
1662 if (wpa_s->p2p_in_provisioning ||
1663 wpa_s->show_group_started ||
1664 wpa_s->p2p_in_invitation) {
1665 /*
1666 * Use shorter wait during P2P Provisioning
1667 * state and during P2P join-a-group operation
1668 * to speed up group formation.
1669 */
1670 timeout_sec = 0;
1671 timeout_usec = 250000;
1672 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1673 timeout_usec);
1674 return 0;
1675 }
1676 #endif /* CONFIG_P2P */
1677 #ifdef CONFIG_INTERWORKING
1678 if (wpa_s->conf->auto_interworking &&
1679 wpa_s->conf->interworking &&
1680 wpa_s->conf->cred) {
1681 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1682 "start ANQP fetch since no matching "
1683 "networks found");
1684 wpa_s->network_select = 1;
1685 wpa_s->auto_network_select = 1;
1686 interworking_start_fetch_anqp(wpa_s);
1687 return 1;
1688 }
1689 #endif /* CONFIG_INTERWORKING */
1690 #ifdef CONFIG_WPS
1691 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
1692 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1693 timeout_sec = 0;
1694 timeout_usec = 500000;
1695 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1696 timeout_usec);
1697 return 0;
1698 }
1699 #endif /* CONFIG_WPS */
1700 if (wpa_supplicant_req_sched_scan(wpa_s))
1701 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1702 timeout_usec);
1703
1704 wpa_msg_ctrl(wpa_s, MSG_INFO,
1705 WPA_EVENT_NETWORK_NOT_FOUND);
1706 }
1707 }
1708 return 0;
1709 }
1710
1711
1712 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1713 union wpa_event_data *data)
1714 {
1715 struct wpa_supplicant *ifs;
1716 int res;
1717
1718 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1);
1719 if (res == 2) {
1720 /*
1721 * Interface may have been removed, so must not dereference
1722 * wpa_s after this.
1723 */
1724 return 1;
1725 }
1726 if (res != 0) {
1727 /*
1728 * If no scan results could be fetched, then no need to
1729 * notify those interfaces that did not actually request
1730 * this scan. Similarly, if scan results started a new operation on this
1731 * interface, do not notify other interfaces to avoid concurrent
1732 * operations during a connection attempt.
1733 */
1734 return 0;
1735 }
1736
1737 /*
1738 * Check other interfaces to see if they share the same radio. If
1739 * so, they get updated with this same scan info.
1740 */
1741 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1742 radio_list) {
1743 if (ifs != wpa_s) {
1744 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1745 "sibling", ifs->ifname);
1746 _wpa_supplicant_event_scan_results(ifs, data, 0);
1747 }
1748 }
1749
1750 return 0;
1751 }
1752
1753 #endif /* CONFIG_NO_SCAN_PROCESSING */
1754
1755
1756 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1757 {
1758 #ifdef CONFIG_NO_SCAN_PROCESSING
1759 return -1;
1760 #else /* CONFIG_NO_SCAN_PROCESSING */
1761 struct os_reltime now;
1762
1763 if (wpa_s->last_scan_res_used == 0)
1764 return -1;
1765
1766 os_get_reltime(&now);
1767 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
1768 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1769 return -1;
1770 }
1771
1772 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
1773 #endif /* CONFIG_NO_SCAN_PROCESSING */
1774 }
1775
1776 #ifdef CONFIG_WNM
1777
1778 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1779 {
1780 struct wpa_supplicant *wpa_s = eloop_ctx;
1781
1782 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1783 return;
1784
1785 if (!wpa_s->no_keep_alive) {
1786 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1787 MAC2STR(wpa_s->bssid));
1788 /* TODO: could skip this if normal data traffic has been sent */
1789 /* TODO: Consider using some more appropriate data frame for
1790 * this */
1791 if (wpa_s->l2)
1792 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1793 (u8 *) "", 0);
1794 }
1795
1796 #ifdef CONFIG_SME
1797 if (wpa_s->sme.bss_max_idle_period) {
1798 unsigned int msec;
1799 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1800 if (msec > 100)
1801 msec -= 100;
1802 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1803 wnm_bss_keep_alive, wpa_s, NULL);
1804 }
1805 #endif /* CONFIG_SME */
1806 }
1807
1808
1809 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1810 const u8 *ies, size_t ies_len)
1811 {
1812 struct ieee802_11_elems elems;
1813
1814 if (ies == NULL)
1815 return;
1816
1817 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1818 return;
1819
1820 #ifdef CONFIG_SME
1821 if (elems.bss_max_idle_period) {
1822 unsigned int msec;
1823 wpa_s->sme.bss_max_idle_period =
1824 WPA_GET_LE16(elems.bss_max_idle_period);
1825 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1826 "TU)%s", wpa_s->sme.bss_max_idle_period,
1827 (elems.bss_max_idle_period[2] & 0x01) ?
1828 " (protected keep-live required)" : "");
1829 if (wpa_s->sme.bss_max_idle_period == 0)
1830 wpa_s->sme.bss_max_idle_period = 1;
1831 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1832 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1833 /* msec times 1000 */
1834 msec = wpa_s->sme.bss_max_idle_period * 1024;
1835 if (msec > 100)
1836 msec -= 100;
1837 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1838 wnm_bss_keep_alive, wpa_s,
1839 NULL);
1840 }
1841 }
1842 #endif /* CONFIG_SME */
1843 }
1844
1845 #endif /* CONFIG_WNM */
1846
1847
1848 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1849 {
1850 #ifdef CONFIG_WNM
1851 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1852 #endif /* CONFIG_WNM */
1853 }
1854
1855
1856 #ifdef CONFIG_INTERWORKING
1857
1858 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1859 size_t len)
1860 {
1861 int res;
1862
1863 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1864 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1865 if (res) {
1866 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1867 }
1868
1869 return res;
1870 }
1871
1872
1873 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1874 const u8 *ies, size_t ies_len)
1875 {
1876 struct ieee802_11_elems elems;
1877
1878 if (ies == NULL)
1879 return;
1880
1881 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1882 return;
1883
1884 if (elems.qos_map_set) {
1885 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1886 elems.qos_map_set_len);
1887 }
1888 }
1889
1890 #endif /* CONFIG_INTERWORKING */
1891
1892
1893 #ifdef CONFIG_FST
1894 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
1895 const u8 *ie, size_t ie_len)
1896 {
1897 struct mb_ies_info mb_ies;
1898
1899 if (!ie || !ie_len || !wpa_s->fst)
1900 return -ENOENT;
1901
1902 os_memset(&mb_ies, 0, sizeof(mb_ies));
1903
1904 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
1905 size_t len;
1906
1907 len = 2 + ie[1];
1908 if (len > ie_len) {
1909 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
1910 ie, ie_len);
1911 break;
1912 }
1913
1914 if (ie[0] == WLAN_EID_MULTI_BAND) {
1915 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
1916 (unsigned int) len);
1917 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
1918 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
1919 mb_ies.nof_ies++;
1920 }
1921
1922 ie_len -= len;
1923 ie += len;
1924 }
1925
1926 if (mb_ies.nof_ies > 0) {
1927 wpabuf_free(wpa_s->received_mb_ies);
1928 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
1929 return 0;
1930 }
1931
1932 return -ENOENT;
1933 }
1934 #endif /* CONFIG_FST */
1935
1936
1937 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1938 union wpa_event_data *data)
1939 {
1940 int l, len, found = 0, wpa_found, rsn_found;
1941 const u8 *p;
1942 #ifdef CONFIG_IEEE80211R
1943 u8 bssid[ETH_ALEN];
1944 #endif /* CONFIG_IEEE80211R */
1945
1946 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1947 if (data->assoc_info.req_ies)
1948 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1949 data->assoc_info.req_ies_len);
1950 if (data->assoc_info.resp_ies) {
1951 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1952 data->assoc_info.resp_ies_len);
1953 #ifdef CONFIG_TDLS
1954 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1955 data->assoc_info.resp_ies_len);
1956 #endif /* CONFIG_TDLS */
1957 #ifdef CONFIG_WNM
1958 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1959 data->assoc_info.resp_ies_len);
1960 #endif /* CONFIG_WNM */
1961 #ifdef CONFIG_INTERWORKING
1962 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1963 data->assoc_info.resp_ies_len);
1964 #endif /* CONFIG_INTERWORKING */
1965 }
1966 if (data->assoc_info.beacon_ies)
1967 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1968 data->assoc_info.beacon_ies,
1969 data->assoc_info.beacon_ies_len);
1970 if (data->assoc_info.freq)
1971 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1972 data->assoc_info.freq);
1973
1974 p = data->assoc_info.req_ies;
1975 l = data->assoc_info.req_ies_len;
1976
1977 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1978 while (p && l >= 2) {
1979 len = p[1] + 2;
1980 if (len > l) {
1981 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1982 p, l);
1983 break;
1984 }
1985 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1986 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1987 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
1988 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
1989 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1990 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1991 break;
1992 found = 1;
1993 wpa_find_assoc_pmkid(wpa_s);
1994 break;
1995 }
1996 l -= len;
1997 p += len;
1998 }
1999 if (!found && data->assoc_info.req_ies)
2000 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2001
2002 #ifdef CONFIG_IEEE80211R
2003 #ifdef CONFIG_SME
2004 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
2005 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2006 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2007 data->assoc_info.resp_ies,
2008 data->assoc_info.resp_ies_len,
2009 bssid) < 0) {
2010 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2011 "Reassociation Response failed");
2012 wpa_supplicant_deauthenticate(
2013 wpa_s, WLAN_REASON_INVALID_IE);
2014 return -1;
2015 }
2016 }
2017
2018 p = data->assoc_info.resp_ies;
2019 l = data->assoc_info.resp_ies_len;
2020
2021 #ifdef CONFIG_WPS_STRICT
2022 if (p && wpa_s->current_ssid &&
2023 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
2024 struct wpabuf *wps;
2025 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
2026 if (wps == NULL) {
2027 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
2028 "include WPS IE in (Re)Association Response");
2029 return -1;
2030 }
2031
2032 if (wps_validate_assoc_resp(wps) < 0) {
2033 wpabuf_free(wps);
2034 wpa_supplicant_deauthenticate(
2035 wpa_s, WLAN_REASON_INVALID_IE);
2036 return -1;
2037 }
2038 wpabuf_free(wps);
2039 }
2040 #endif /* CONFIG_WPS_STRICT */
2041
2042 /* Go through the IEs and make a copy of the MDIE, if present. */
2043 while (p && l >= 2) {
2044 len = p[1] + 2;
2045 if (len > l) {
2046 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2047 p, l);
2048 break;
2049 }
2050 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
2051 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
2052 wpa_s->sme.ft_used = 1;
2053 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
2054 MOBILITY_DOMAIN_ID_LEN);
2055 break;
2056 }
2057 l -= len;
2058 p += len;
2059 }
2060 #endif /* CONFIG_SME */
2061
2062 /* Process FT when SME is in the driver */
2063 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
2064 wpa_ft_is_completed(wpa_s->wpa)) {
2065 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2066 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2067 data->assoc_info.resp_ies,
2068 data->assoc_info.resp_ies_len,
2069 bssid) < 0) {
2070 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2071 "Reassociation Response failed");
2072 wpa_supplicant_deauthenticate(
2073 wpa_s, WLAN_REASON_INVALID_IE);
2074 return -1;
2075 }
2076 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
2077 }
2078
2079 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
2080 data->assoc_info.resp_ies_len);
2081 #endif /* CONFIG_IEEE80211R */
2082
2083 /* WPA/RSN IE from Beacon/ProbeResp */
2084 p = data->assoc_info.beacon_ies;
2085 l = data->assoc_info.beacon_ies_len;
2086
2087 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
2088 */
2089 wpa_found = rsn_found = 0;
2090 while (p && l >= 2) {
2091 len = p[1] + 2;
2092 if (len > l) {
2093 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
2094 p, l);
2095 break;
2096 }
2097 if (!wpa_found &&
2098 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2099 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
2100 wpa_found = 1;
2101 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
2102 }
2103
2104 if (!rsn_found &&
2105 p[0] == WLAN_EID_RSN && p[1] >= 2) {
2106 rsn_found = 1;
2107 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
2108 }
2109
2110 l -= len;
2111 p += len;
2112 }
2113
2114 if (!wpa_found && data->assoc_info.beacon_ies)
2115 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
2116 if (!rsn_found && data->assoc_info.beacon_ies)
2117 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
2118 if (wpa_found || rsn_found)
2119 wpa_s->ap_ies_from_associnfo = 1;
2120
2121 if (wpa_s->assoc_freq && data->assoc_info.freq &&
2122 wpa_s->assoc_freq != data->assoc_info.freq) {
2123 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
2124 "%u to %u MHz",
2125 wpa_s->assoc_freq, data->assoc_info.freq);
2126 wpa_supplicant_update_scan_results(wpa_s);
2127 }
2128
2129 wpa_s->assoc_freq = data->assoc_info.freq;
2130
2131 return 0;
2132 }
2133
2134
2135 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
2136 {
2137 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
2138
2139 if (!wpa_s->current_bss || !wpa_s->current_ssid)
2140 return -1;
2141
2142 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
2143 return 0;
2144
2145 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
2146 WPA_IE_VENDOR_TYPE);
2147 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
2148
2149 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
2150 bss_wpa ? 2 + bss_wpa[1] : 0) ||
2151 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
2152 bss_rsn ? 2 + bss_rsn[1] : 0))
2153 return -1;
2154
2155 return 0;
2156 }
2157
2158
2159 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
2160 union wpa_event_data *data)
2161 {
2162 #ifdef CONFIG_FST
2163 struct assoc_info *ai = data ? &data->assoc_info : NULL;
2164 struct wpa_bss *bss = wpa_s->current_bss;
2165 const u8 *ieprb, *iebcn;
2166
2167 wpabuf_free(wpa_s->received_mb_ies);
2168 wpa_s->received_mb_ies = NULL;
2169
2170 if (ai &&
2171 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
2172 wpa_printf(MSG_DEBUG,
2173 "FST: MB IEs updated from Association Response frame");
2174 return;
2175 }
2176
2177 if (ai &&
2178 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
2179 wpa_printf(MSG_DEBUG,
2180 "FST: MB IEs updated from association event Beacon IEs");
2181 return;
2182 }
2183
2184 if (!bss)
2185 return;
2186
2187 ieprb = (const u8 *) (bss + 1);
2188 iebcn = ieprb + bss->ie_len;
2189
2190 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
2191 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
2192 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
2193 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
2194 #endif /* CONFIG_FST */
2195 }
2196
2197
2198 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
2199 union wpa_event_data *data)
2200 {
2201 u8 bssid[ETH_ALEN];
2202 int ft_completed;
2203 int new_bss = 0;
2204
2205 #ifdef CONFIG_AP
2206 if (wpa_s->ap_iface) {
2207 if (!data)
2208 return;
2209 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
2210 data->assoc_info.addr,
2211 data->assoc_info.req_ies,
2212 data->assoc_info.req_ies_len,
2213 data->assoc_info.reassoc);
2214 return;
2215 }
2216 #endif /* CONFIG_AP */
2217
2218 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2219
2220 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
2221 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
2222 return;
2223
2224 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
2225 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
2226 wpa_supplicant_deauthenticate(
2227 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2228 return;
2229 }
2230
2231 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
2232 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
2233 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
2234 MACSTR, MAC2STR(bssid));
2235 new_bss = 1;
2236 random_add_randomness(bssid, ETH_ALEN);
2237 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
2238 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2239 wpas_notify_bssid_changed(wpa_s);
2240
2241 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
2242 wpa_clear_keys(wpa_s, bssid);
2243 }
2244 if (wpa_supplicant_select_config(wpa_s) < 0) {
2245 wpa_supplicant_deauthenticate(
2246 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2247 return;
2248 }
2249 }
2250
2251 if (wpa_s->conf->ap_scan == 1 &&
2252 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
2253 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
2254 wpa_msg(wpa_s, MSG_WARNING,
2255 "WPA/RSN IEs not updated");
2256 }
2257
2258 wpas_fst_update_mb_assoc(wpa_s, data);
2259
2260 #ifdef CONFIG_SME
2261 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
2262 wpa_s->sme.prev_bssid_set = 1;
2263 wpa_s->sme.last_unprot_disconnect.sec = 0;
2264 #endif /* CONFIG_SME */
2265
2266 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
2267 if (wpa_s->current_ssid) {
2268 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
2269 * initialized before association, but for other modes,
2270 * initialize PC/SC here, if the current configuration needs
2271 * smartcard or SIM/USIM. */
2272 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
2273 }
2274 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
2275 if (wpa_s->l2)
2276 l2_packet_notify_auth_start(wpa_s->l2);
2277
2278 /*
2279 * Set portEnabled first to FALSE in order to get EAP state machine out
2280 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
2281 * state machine may transit to AUTHENTICATING state based on obsolete
2282 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
2283 * AUTHENTICATED without ever giving chance to EAP state machine to
2284 * reset the state.
2285 */
2286 if (!ft_completed) {
2287 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
2288 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
2289 }
2290 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
2291 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
2292 /* 802.1X::portControl = Auto */
2293 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
2294 wpa_s->eapol_received = 0;
2295 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2296 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
2297 (wpa_s->current_ssid &&
2298 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
2299 if (wpa_s->current_ssid &&
2300 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
2301 (wpa_s->drv_flags &
2302 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2303 /*
2304 * Set the key after having received joined-IBSS event
2305 * from the driver.
2306 */
2307 wpa_supplicant_set_wpa_none_key(wpa_s,
2308 wpa_s->current_ssid);
2309 }
2310 wpa_supplicant_cancel_auth_timeout(wpa_s);
2311 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2312 } else if (!ft_completed) {
2313 /* Timeout for receiving the first EAPOL packet */
2314 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
2315 }
2316 wpa_supplicant_cancel_scan(wpa_s);
2317
2318 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2319 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
2320 /*
2321 * We are done; the driver will take care of RSN 4-way
2322 * handshake.
2323 */
2324 wpa_supplicant_cancel_auth_timeout(wpa_s);
2325 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2326 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2327 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2328 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2329 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
2330 /*
2331 * The driver will take care of RSN 4-way handshake, so we need
2332 * to allow EAPOL supplicant to complete its work without
2333 * waiting for WPA supplicant.
2334 */
2335 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2336 } else if (ft_completed) {
2337 /*
2338 * FT protocol completed - make sure EAPOL state machine ends
2339 * up in authenticated.
2340 */
2341 wpa_supplicant_cancel_auth_timeout(wpa_s);
2342 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2343 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2344 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2345 }
2346
2347 wpa_s->last_eapol_matches_bssid = 0;
2348
2349 if (wpa_s->pending_eapol_rx) {
2350 struct os_reltime now, age;
2351 os_get_reltime(&now);
2352 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
2353 if (age.sec == 0 && age.usec < 100000 &&
2354 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2355 0) {
2356 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2357 "frame that was received just before "
2358 "association notification");
2359 wpa_supplicant_rx_eapol(
2360 wpa_s, wpa_s->pending_eapol_rx_src,
2361 wpabuf_head(wpa_s->pending_eapol_rx),
2362 wpabuf_len(wpa_s->pending_eapol_rx));
2363 }
2364 wpabuf_free(wpa_s->pending_eapol_rx);
2365 wpa_s->pending_eapol_rx = NULL;
2366 }
2367
2368 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2369 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
2370 wpa_s->current_ssid &&
2371 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2372 /* Set static WEP keys again */
2373 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2374 }
2375
2376 #ifdef CONFIG_IBSS_RSN
2377 if (wpa_s->current_ssid &&
2378 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2379 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2380 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2381 wpa_s->ibss_rsn == NULL) {
2382 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2383 if (!wpa_s->ibss_rsn) {
2384 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2385 wpa_supplicant_deauthenticate(
2386 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2387 return;
2388 }
2389
2390 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2391 }
2392 #endif /* CONFIG_IBSS_RSN */
2393
2394 wpas_wps_notify_assoc(wpa_s, bssid);
2395
2396 if (data) {
2397 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2398 data->assoc_info.resp_ies_len,
2399 &data->assoc_info.wmm_params);
2400
2401 if (wpa_s->reassoc_same_bss)
2402 wmm_ac_restore_tspecs(wpa_s);
2403 }
2404 }
2405
2406
2407 static int disconnect_reason_recoverable(u16 reason_code)
2408 {
2409 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2410 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2411 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2412 }
2413
2414
2415 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
2416 u16 reason_code,
2417 int locally_generated)
2418 {
2419 const u8 *bssid;
2420
2421 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2422 /*
2423 * At least Host AP driver and a Prism3 card seemed to be
2424 * generating streams of disconnected events when configuring
2425 * IBSS for WPA-None. Ignore them for now.
2426 */
2427 return;
2428 }
2429
2430 bssid = wpa_s->bssid;
2431 if (is_zero_ether_addr(bssid))
2432 bssid = wpa_s->pending_bssid;
2433
2434 if (!is_zero_ether_addr(bssid) ||
2435 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2436 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2437 " reason=%d%s",
2438 MAC2STR(bssid), reason_code,
2439 locally_generated ? " locally_generated=1" : "");
2440 }
2441 }
2442
2443
2444 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2445 int locally_generated)
2446 {
2447 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2448 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2449 return 0; /* Not in 4-way handshake with PSK */
2450
2451 /*
2452 * It looks like connection was lost while trying to go through PSK
2453 * 4-way handshake. Filter out known disconnection cases that are caused
2454 * by something else than PSK mismatch to avoid confusing reports.
2455 */
2456
2457 if (locally_generated) {
2458 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2459 return 0;
2460 }
2461
2462 return 1;
2463 }
2464
2465
2466 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2467 u16 reason_code,
2468 int locally_generated)
2469 {
2470 const u8 *bssid;
2471 int authenticating;
2472 u8 prev_pending_bssid[ETH_ALEN];
2473 struct wpa_bss *fast_reconnect = NULL;
2474 struct wpa_ssid *fast_reconnect_ssid = NULL;
2475 struct wpa_ssid *last_ssid;
2476
2477 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2478 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
2479
2480 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2481 /*
2482 * At least Host AP driver and a Prism3 card seemed to be
2483 * generating streams of disconnected events when configuring
2484 * IBSS for WPA-None. Ignore them for now.
2485 */
2486 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2487 "IBSS/WPA-None mode");
2488 return;
2489 }
2490
2491 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
2492 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2493 "pre-shared key may be incorrect");
2494 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2495 return; /* P2P group removed */
2496 wpas_auth_failed(wpa_s, "WRONG_KEY");
2497 }
2498 if (!wpa_s->disconnected &&
2499 (!wpa_s->auto_reconnect_disabled ||
2500 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
2501 wpas_wps_searching(wpa_s) ||
2502 wpas_wps_reenable_networks_pending(wpa_s))) {
2503 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
2504 "reconnect (wps=%d/%d wpa_state=%d)",
2505 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2506 wpas_wps_searching(wpa_s),
2507 wpa_s->wpa_state);
2508 if (wpa_s->wpa_state == WPA_COMPLETED &&
2509 wpa_s->current_ssid &&
2510 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
2511 !locally_generated &&
2512 disconnect_reason_recoverable(reason_code)) {
2513 /*
2514 * It looks like the AP has dropped association with
2515 * us, but could allow us to get back in. Try to
2516 * reconnect to the same BSS without full scan to save
2517 * time for some common cases.
2518 */
2519 fast_reconnect = wpa_s->current_bss;
2520 fast_reconnect_ssid = wpa_s->current_ssid;
2521 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
2522 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2523 else
2524 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2525 "immediate scan");
2526 } else {
2527 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
2528 "try to re-connect");
2529 wpa_s->reassociate = 0;
2530 wpa_s->disconnected = 1;
2531 if (!wpa_s->pno)
2532 wpa_supplicant_cancel_sched_scan(wpa_s);
2533 }
2534 bssid = wpa_s->bssid;
2535 if (is_zero_ether_addr(bssid))
2536 bssid = wpa_s->pending_bssid;
2537 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2538 wpas_connection_failed(wpa_s, bssid);
2539 wpa_sm_notify_disassoc(wpa_s->wpa);
2540 if (locally_generated)
2541 wpa_s->disconnect_reason = -reason_code;
2542 else
2543 wpa_s->disconnect_reason = reason_code;
2544 wpas_notify_disconnect_reason(wpa_s);
2545 if (wpa_supplicant_dynamic_keys(wpa_s)) {
2546 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
2547 wpa_clear_keys(wpa_s, wpa_s->bssid);
2548 }
2549 last_ssid = wpa_s->current_ssid;
2550 wpa_supplicant_mark_disassoc(wpa_s);
2551
2552 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2553 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2554 wpa_s->current_ssid = last_ssid;
2555 }
2556
2557 if (fast_reconnect &&
2558 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2559 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2560 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2561 fast_reconnect->ssid_len) &&
2562 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
2563 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) {
2564 #ifndef CONFIG_NO_SCAN_PROCESSING
2565 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2566 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2567 fast_reconnect_ssid) < 0) {
2568 /* Recover through full scan */
2569 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2570 }
2571 #endif /* CONFIG_NO_SCAN_PROCESSING */
2572 } else if (fast_reconnect) {
2573 /*
2574 * Could not reconnect to the same BSS due to network being
2575 * disabled. Use a new scan to match the alternative behavior
2576 * above, i.e., to continue automatic reconnection attempt in a
2577 * way that enforces disabled network rules.
2578 */
2579 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2580 }
2581 }
2582
2583
2584 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2585 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
2586 {
2587 struct wpa_supplicant *wpa_s = eloop_ctx;
2588
2589 if (!wpa_s->pending_mic_error_report)
2590 return;
2591
2592 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2593 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2594 wpa_s->pending_mic_error_report = 0;
2595 }
2596 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2597
2598
2599 static void
2600 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2601 union wpa_event_data *data)
2602 {
2603 int pairwise;
2604 struct os_reltime t;
2605
2606 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2607 pairwise = (data && data->michael_mic_failure.unicast);
2608 os_get_reltime(&t);
2609 if ((wpa_s->last_michael_mic_error.sec &&
2610 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
2611 wpa_s->pending_mic_error_report) {
2612 if (wpa_s->pending_mic_error_report) {
2613 /*
2614 * Send the pending MIC error report immediately since
2615 * we are going to start countermeasures and AP better
2616 * do the same.
2617 */
2618 wpa_sm_key_request(wpa_s->wpa, 1,
2619 wpa_s->pending_mic_error_pairwise);
2620 }
2621
2622 /* Send the new MIC error report immediately since we are going
2623 * to start countermeasures and AP better do the same.
2624 */
2625 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2626
2627 /* initialize countermeasures */
2628 wpa_s->countermeasures = 1;
2629
2630 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2631
2632 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2633
2634 /*
2635 * Need to wait for completion of request frame. We do not get
2636 * any callback for the message completion, so just wait a
2637 * short while and hope for the best. */
2638 os_sleep(0, 10000);
2639
2640 wpa_drv_set_countermeasures(wpa_s, 1);
2641 wpa_supplicant_deauthenticate(wpa_s,
2642 WLAN_REASON_MICHAEL_MIC_FAILURE);
2643 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2644 wpa_s, NULL);
2645 eloop_register_timeout(60, 0,
2646 wpa_supplicant_stop_countermeasures,
2647 wpa_s, NULL);
2648 /* TODO: mark the AP rejected for 60 second. STA is
2649 * allowed to associate with another AP.. */
2650 } else {
2651 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2652 if (wpa_s->mic_errors_seen) {
2653 /*
2654 * Reduce the effectiveness of Michael MIC error
2655 * reports as a means for attacking against TKIP if
2656 * more than one MIC failure is noticed with the same
2657 * PTK. We delay the transmission of the reports by a
2658 * random time between 0 and 60 seconds in order to
2659 * force the attacker wait 60 seconds before getting
2660 * the information on whether a frame resulted in a MIC
2661 * failure.
2662 */
2663 u8 rval[4];
2664 int sec;
2665
2666 if (os_get_random(rval, sizeof(rval)) < 0)
2667 sec = os_random() % 60;
2668 else
2669 sec = WPA_GET_BE32(rval) % 60;
2670 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2671 "report %d seconds", sec);
2672 wpa_s->pending_mic_error_report = 1;
2673 wpa_s->pending_mic_error_pairwise = pairwise;
2674 eloop_cancel_timeout(
2675 wpa_supplicant_delayed_mic_error_report,
2676 wpa_s, NULL);
2677 eloop_register_timeout(
2678 sec, os_random() % 1000000,
2679 wpa_supplicant_delayed_mic_error_report,
2680 wpa_s, NULL);
2681 } else {
2682 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2683 }
2684 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2685 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2686 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2687 }
2688 wpa_s->last_michael_mic_error = t;
2689 wpa_s->mic_errors_seen++;
2690 }
2691
2692
2693 #ifdef CONFIG_TERMINATE_ONLASTIF
2694 static int any_interfaces(struct wpa_supplicant *head)
2695 {
2696 struct wpa_supplicant *wpa_s;
2697
2698 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2699 if (!wpa_s->interface_removed)
2700 return 1;
2701 return 0;
2702 }
2703 #endif /* CONFIG_TERMINATE_ONLASTIF */
2704
2705
2706 static void
2707 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2708 union wpa_event_data *data)
2709 {
2710 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2711 return;
2712
2713 switch (data->interface_status.ievent) {
2714 case EVENT_INTERFACE_ADDED:
2715 if (!wpa_s->interface_removed)
2716 break;
2717 wpa_s->interface_removed = 0;
2718 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2719 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2720 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2721 "driver after interface was added");
2722 }
2723
2724 #ifdef CONFIG_P2P
2725 if (!wpa_s->global->p2p &&
2726 !wpa_s->global->p2p_disabled &&
2727 !wpa_s->conf->p2p_disabled &&
2728 (wpa_s->drv_flags &
2729 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
2730 wpas_p2p_add_p2pdev_interface(
2731 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
2732 wpa_printf(MSG_INFO,
2733 "P2P: Failed to enable P2P Device interface");
2734 /* Try to continue without. P2P will be disabled. */
2735 }
2736 #endif /* CONFIG_P2P */
2737
2738 break;
2739 case EVENT_INTERFACE_REMOVED:
2740 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2741 wpa_s->interface_removed = 1;
2742 wpa_supplicant_mark_disassoc(wpa_s);
2743 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2744 l2_packet_deinit(wpa_s->l2);
2745 wpa_s->l2 = NULL;
2746
2747 #ifdef CONFIG_P2P
2748 if (wpa_s->global->p2p &&
2749 wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
2750 (wpa_s->drv_flags &
2751 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
2752 wpa_dbg(wpa_s, MSG_DEBUG,
2753 "Removing P2P Device interface");
2754 wpa_supplicant_remove_iface(
2755 wpa_s->global, wpa_s->global->p2p_init_wpa_s,
2756 0);
2757 wpa_s->global->p2p_init_wpa_s = NULL;
2758 }
2759 #endif /* CONFIG_P2P */
2760
2761 #ifdef CONFIG_MATCH_IFACE
2762 if (wpa_s->matched) {
2763 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
2764 break;
2765 }
2766 #endif /* CONFIG_MATCH_IFACE */
2767
2768 #ifdef CONFIG_TERMINATE_ONLASTIF
2769 /* check if last interface */
2770 if (!any_interfaces(wpa_s->global->ifaces))
2771 eloop_terminate();
2772 #endif /* CONFIG_TERMINATE_ONLASTIF */
2773 break;
2774 }
2775 }
2776
2777
2778 #ifdef CONFIG_PEERKEY
2779 static void
2780 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2781 union wpa_event_data *data)
2782 {
2783 if (data == NULL)
2784 return;
2785 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2786 }
2787 #endif /* CONFIG_PEERKEY */
2788
2789
2790 #ifdef CONFIG_TDLS
2791 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2792 union wpa_event_data *data)
2793 {
2794 if (data == NULL)
2795 return;
2796 switch (data->tdls.oper) {
2797 case TDLS_REQUEST_SETUP:
2798 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2799 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2800 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2801 else
2802 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2803 break;
2804 case TDLS_REQUEST_TEARDOWN:
2805 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2806 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2807 data->tdls.reason_code);
2808 else
2809 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2810 data->tdls.peer);
2811 break;
2812 case TDLS_REQUEST_DISCOVER:
2813 wpa_tdls_send_discovery_request(wpa_s->wpa,
2814 data->tdls.peer);
2815 break;
2816 }
2817 }
2818 #endif /* CONFIG_TDLS */
2819
2820
2821 #ifdef CONFIG_WNM
2822 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2823 union wpa_event_data *data)
2824 {
2825 if (data == NULL)
2826 return;
2827 switch (data->wnm.oper) {
2828 case WNM_OPER_SLEEP:
2829 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2830 "(action=%d, intval=%d)",
2831 data->wnm.sleep_action, data->wnm.sleep_intval);
2832 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2833 data->wnm.sleep_intval, NULL);
2834 break;
2835 }
2836 }
2837 #endif /* CONFIG_WNM */
2838
2839
2840 #ifdef CONFIG_IEEE80211R
2841 static void
2842 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2843 union wpa_event_data *data)
2844 {
2845 if (data == NULL)
2846 return;
2847
2848 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2849 data->ft_ies.ies_len,
2850 data->ft_ies.ft_action,
2851 data->ft_ies.target_ap,
2852 data->ft_ies.ric_ies,
2853 data->ft_ies.ric_ies_len) < 0) {
2854 /* TODO: prevent MLME/driver from trying to associate? */
2855 }
2856 }
2857 #endif /* CONFIG_IEEE80211R */
2858
2859
2860 #ifdef CONFIG_IBSS_RSN
2861 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2862 union wpa_event_data *data)
2863 {
2864 struct wpa_ssid *ssid;
2865 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2866 return;
2867 if (data == NULL)
2868 return;
2869 ssid = wpa_s->current_ssid;
2870 if (ssid == NULL)
2871 return;
2872 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2873 return;
2874
2875 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2876 }
2877
2878
2879 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2880 union wpa_event_data *data)
2881 {
2882 struct wpa_ssid *ssid = wpa_s->current_ssid;
2883
2884 if (ssid == NULL)
2885 return;
2886
2887 /* check if the ssid is correctly configured as IBSS/RSN */
2888 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2889 return;
2890
2891 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2892 data->rx_mgmt.frame_len);
2893 }
2894 #endif /* CONFIG_IBSS_RSN */
2895
2896
2897 #ifdef CONFIG_IEEE80211R
2898 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2899 size_t len)
2900 {
2901 const u8 *sta_addr, *target_ap_addr;
2902 u16 status;
2903
2904 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2905 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2906 return; /* only SME case supported for now */
2907 if (len < 1 + 2 * ETH_ALEN + 2)
2908 return;
2909 if (data[0] != 2)
2910 return; /* Only FT Action Response is supported for now */
2911 sta_addr = data + 1;
2912 target_ap_addr = data + 1 + ETH_ALEN;
2913 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2914 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2915 MACSTR " TargetAP " MACSTR " status %u",
2916 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2917
2918 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2919 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2920 " in FT Action Response", MAC2STR(sta_addr));
2921 return;
2922 }
2923
2924 if (status) {
2925 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2926 "failure (status code %d)", status);
2927 /* TODO: report error to FT code(?) */
2928 return;
2929 }
2930
2931 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2932 len - (1 + 2 * ETH_ALEN + 2), 1,
2933 target_ap_addr, NULL, 0) < 0)
2934 return;
2935
2936 #ifdef CONFIG_SME
2937 {
2938 struct wpa_bss *bss;
2939 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2940 if (bss)
2941 wpa_s->sme.freq = bss->freq;
2942 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2943 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2944 WLAN_AUTH_FT);
2945 }
2946 #endif /* CONFIG_SME */
2947 }
2948 #endif /* CONFIG_IEEE80211R */
2949
2950
2951 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2952 struct unprot_deauth *e)
2953 {
2954 #ifdef CONFIG_IEEE80211W
2955 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2956 "dropped: " MACSTR " -> " MACSTR
2957 " (reason code %u)",
2958 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2959 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2960 #endif /* CONFIG_IEEE80211W */
2961 }
2962
2963
2964 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2965 struct unprot_disassoc *e)
2966 {
2967 #ifdef CONFIG_IEEE80211W
2968 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2969 "dropped: " MACSTR " -> " MACSTR
2970 " (reason code %u)",
2971 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2972 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2973 #endif /* CONFIG_IEEE80211W */
2974 }
2975
2976
2977 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
2978 u16 reason_code, int locally_generated,
2979 const u8 *ie, size_t ie_len, int deauth)
2980 {
2981 #ifdef CONFIG_AP
2982 if (wpa_s->ap_iface && addr) {
2983 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
2984 return;
2985 }
2986
2987 if (wpa_s->ap_iface) {
2988 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
2989 return;
2990 }
2991 #endif /* CONFIG_AP */
2992
2993 if (!locally_generated)
2994 wpa_s->own_disconnect_req = 0;
2995
2996 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
2997
2998 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
2999 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3000 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
3001 eapol_sm_failed(wpa_s->eapol))) &&
3002 !wpa_s->eap_expected_failure))
3003 wpas_auth_failed(wpa_s, "AUTH_FAILED");
3004
3005 #ifdef CONFIG_P2P
3006 if (deauth && reason_code > 0) {
3007 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
3008 locally_generated) > 0) {
3009 /*
3010 * The interface was removed, so cannot continue
3011 * processing any additional operations after this.
3012 */
3013 return;
3014 }
3015 }
3016 #endif /* CONFIG_P2P */
3017
3018 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
3019 locally_generated);
3020 }
3021
3022
3023 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
3024 struct disassoc_info *info)
3025 {
3026 u16 reason_code = 0;
3027 int locally_generated = 0;
3028 const u8 *addr = NULL;
3029 const u8 *ie = NULL;
3030 size_t ie_len = 0;
3031
3032 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
3033
3034 if (info) {
3035 addr = info->addr;
3036 ie = info->ie;
3037 ie_len = info->ie_len;
3038 reason_code = info->reason_code;
3039 locally_generated = info->locally_generated;
3040 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
3041 locally_generated ? " (locally generated)" : "");
3042 if (addr)
3043 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3044 MAC2STR(addr));
3045 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
3046 ie, ie_len);
3047 }
3048
3049 #ifdef CONFIG_AP
3050 if (wpa_s->ap_iface && info && info->addr) {
3051 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
3052 return;
3053 }
3054
3055 if (wpa_s->ap_iface) {
3056 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
3057 return;
3058 }
3059 #endif /* CONFIG_AP */
3060
3061 #ifdef CONFIG_P2P
3062 if (info) {
3063 wpas_p2p_disassoc_notif(
3064 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
3065 locally_generated);
3066 }
3067 #endif /* CONFIG_P2P */
3068
3069 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3070 sme_event_disassoc(wpa_s, info);
3071
3072 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
3073 ie, ie_len, 0);
3074 }
3075
3076
3077 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
3078 struct deauth_info *info)
3079 {
3080 u16 reason_code = 0;
3081 int locally_generated = 0;
3082 const u8 *addr = NULL;
3083 const u8 *ie = NULL;
3084 size_t ie_len = 0;
3085
3086 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
3087
3088 if (info) {
3089 addr = info->addr;
3090 ie = info->ie;
3091 ie_len = info->ie_len;
3092 reason_code = info->reason_code;
3093 locally_generated = info->locally_generated;
3094 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
3095 reason_code,
3096 locally_generated ? " (locally generated)" : "");
3097 if (addr) {
3098 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3099 MAC2STR(addr));
3100 }
3101 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
3102 ie, ie_len);
3103 }
3104
3105 wpa_reset_ft_completed(wpa_s->wpa);
3106
3107 wpas_event_disconnect(wpa_s, addr, reason_code,
3108 locally_generated, ie, ie_len, 1);
3109 }
3110
3111
3112 static const char * reg_init_str(enum reg_change_initiator init)
3113 {
3114 switch (init) {
3115 case REGDOM_SET_BY_CORE:
3116 return "CORE";
3117 case REGDOM_SET_BY_USER:
3118 return "USER";
3119 case REGDOM_SET_BY_DRIVER:
3120 return "DRIVER";
3121 case REGDOM_SET_BY_COUNTRY_IE:
3122 return "COUNTRY_IE";
3123 case REGDOM_BEACON_HINT:
3124 return "BEACON_HINT";
3125 }
3126 return "?";
3127 }
3128
3129
3130 static const char * reg_type_str(enum reg_type type)
3131 {
3132 switch (type) {
3133 case REGDOM_TYPE_UNKNOWN:
3134 return "UNKNOWN";
3135 case REGDOM_TYPE_COUNTRY:
3136 return "COUNTRY";
3137 case REGDOM_TYPE_WORLD:
3138 return "WORLD";
3139 case REGDOM_TYPE_CUSTOM_WORLD:
3140 return "CUSTOM_WORLD";
3141 case REGDOM_TYPE_INTERSECTION:
3142 return "INTERSECTION";
3143 }
3144 return "?";
3145 }
3146
3147
3148 static void wpa_supplicant_update_channel_list(
3149 struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
3150 {
3151 struct wpa_supplicant *ifs;
3152
3153 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
3154 reg_init_str(info->initiator), reg_type_str(info->type),
3155 info->alpha2[0] ? " alpha2=" : "",
3156 info->alpha2[0] ? info->alpha2 : "");
3157
3158 if (wpa_s->drv_priv == NULL)
3159 return; /* Ignore event during drv initialization */
3160
3161 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
3162 radio_list) {
3163 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
3164 ifs->ifname);
3165 free_hw_features(ifs);
3166 ifs->hw.modes = wpa_drv_get_hw_feature_data(
3167 ifs, &ifs->hw.num_modes, &ifs->hw.flags);
3168 }
3169
3170 /* Restart sched_scan with updated channel list */
3171 if (wpa_s->sched_scanning) {
3172 wpa_dbg(wpa_s, MSG_DEBUG,
3173 "Channel list changed restart sched scan.");
3174 wpa_supplicant_cancel_sched_scan(wpa_s);
3175 wpa_supplicant_req_scan(wpa_s, 0, 0);
3176 }
3177
3178 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
3179 }
3180
3181
3182 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
3183 const u8 *frame, size_t len, int freq,
3184 int rssi)
3185 {
3186 const struct ieee80211_mgmt *mgmt;
3187 const u8 *payload;
3188 size_t plen;
3189 u8 category;
3190
3191 if (len < IEEE80211_HDRLEN + 2)
3192 return;
3193
3194 mgmt = (const struct ieee80211_mgmt *) frame;
3195 payload = frame + IEEE80211_HDRLEN;
3196 category = *payload++;
3197 plen = len - IEEE80211_HDRLEN - 1;
3198
3199 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
3200 " Category=%u DataLen=%d freq=%d MHz",
3201 MAC2STR(mgmt->sa), category, (int) plen, freq);
3202
3203 if (category == WLAN_ACTION_WMM) {
3204 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
3205 return;
3206 }
3207
3208 #ifdef CONFIG_IEEE80211R
3209 if (category == WLAN_ACTION_FT) {
3210 ft_rx_action(wpa_s, payload, plen);
3211 return;
3212 }
3213 #endif /* CONFIG_IEEE80211R */
3214
3215 #ifdef CONFIG_IEEE80211W
3216 #ifdef CONFIG_SME
3217 if (category == WLAN_ACTION_SA_QUERY) {
3218 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
3219 return;
3220 }
3221 #endif /* CONFIG_SME */
3222 #endif /* CONFIG_IEEE80211W */
3223
3224 #ifdef CONFIG_WNM
3225 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
3226 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
3227 return;
3228 }
3229 #endif /* CONFIG_WNM */
3230
3231 #ifdef CONFIG_GAS
3232 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
3233 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
3234 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
3235 mgmt->u.action.category,
3236 payload, plen, freq) == 0)
3237 return;
3238 #endif /* CONFIG_GAS */
3239
3240 #ifdef CONFIG_TDLS
3241 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
3242 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
3243 wpa_dbg(wpa_s, MSG_DEBUG,
3244 "TDLS: Received Discovery Response from " MACSTR,
3245 MAC2STR(mgmt->sa));
3246 return;
3247 }
3248 #endif /* CONFIG_TDLS */
3249
3250 #ifdef CONFIG_INTERWORKING
3251 if (category == WLAN_ACTION_QOS && plen >= 1 &&
3252 payload[0] == QOS_QOS_MAP_CONFIG) {
3253 const u8 *pos = payload + 1;
3254 size_t qlen = plen - 1;
3255 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
3256 MACSTR, MAC2STR(mgmt->sa));
3257 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
3258 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
3259 pos[1] <= qlen - 2 && pos[1] >= 16)
3260 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
3261 return;
3262 }
3263 #endif /* CONFIG_INTERWORKING */
3264
3265 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3266 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
3267 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
3268 return;
3269 }
3270
3271 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3272 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
3273 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
3274 payload + 1, plen - 1,
3275 rssi);
3276 return;
3277 }
3278
3279 #ifdef CONFIG_FST
3280 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
3281 fst_rx_action(wpa_s->fst, mgmt, len);
3282 return;
3283 }
3284 #endif /* CONFIG_FST */
3285
3286 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
3287 category, payload, plen, freq);
3288 if (wpa_s->ifmsh)
3289 mesh_mpm_action_rx(wpa_s, mgmt, len);
3290 }
3291
3292
3293 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
3294 union wpa_event_data *event)
3295 {
3296 struct wpa_freq_range_list *list;
3297 char *str = NULL;
3298
3299 list = &event->freq_range;
3300
3301 if (list->num)
3302 str = freq_range_list_str(list);
3303 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
3304 str ? str : "");
3305
3306 #ifdef CONFIG_P2P
3307 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
3308 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
3309 __func__);
3310 } else {
3311 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
3312
3313 /*
3314 * The update channel flow will also take care of moving a GO
3315 * from the unsafe frequency if needed.
3316 */
3317 wpas_p2p_update_channel_list(wpa_s,
3318 WPAS_P2P_CHANNEL_UPDATE_AVOID);
3319 }
3320 #endif /* CONFIG_P2P */
3321
3322 os_free(str);
3323 }
3324
3325
3326 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
3327 union wpa_event_data *data)
3328 {
3329 wpa_dbg(wpa_s, MSG_DEBUG,
3330 "Connection authorized by device, previous state %d",
3331 wpa_s->wpa_state);
3332 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
3333 wpa_supplicant_cancel_auth_timeout(wpa_s);
3334 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3335 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3336 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
3337 }
3338 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
3339 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
3340 data->assoc_info.ptk_kck_len,
3341 data->assoc_info.ptk_kek,
3342 data->assoc_info.ptk_kek_len);
3343 }
3344
3345
3346 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
3347 union wpa_event_data *data)
3348 {
3349 struct wpa_supplicant *wpa_s = ctx;
3350 int resched;
3351
3352 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
3353 event != EVENT_INTERFACE_ENABLED &&
3354 event != EVENT_INTERFACE_STATUS &&
3355 event != EVENT_SCAN_RESULTS &&
3356 event != EVENT_SCHED_SCAN_STOPPED) {
3357 wpa_dbg(wpa_s, MSG_DEBUG,
3358 "Ignore event %s (%d) while interface is disabled",
3359 event_to_string(event), event);
3360 return;
3361 }
3362
3363 #ifndef CONFIG_NO_STDOUT_DEBUG
3364 {
3365 int level = MSG_DEBUG;
3366
3367 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
3368 const struct ieee80211_hdr *hdr;
3369 u16 fc;
3370 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
3371 fc = le_to_host16(hdr->frame_control);
3372 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3373 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
3374 level = MSG_EXCESSIVE;
3375 }
3376
3377 wpa_dbg(wpa_s, level, "Event %s (%d) received",
3378 event_to_string(event), event);
3379 }
3380 #endif /* CONFIG_NO_STDOUT_DEBUG */
3381
3382 switch (event) {
3383 case EVENT_AUTH:
3384 #ifdef CONFIG_FST
3385 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
3386 data->auth.ies_len))
3387 wpa_printf(MSG_DEBUG,
3388 "FST: MB IEs updated from auth IE");
3389 #endif /* CONFIG_FST */
3390 sme_event_auth(wpa_s, data);
3391 break;
3392 case EVENT_ASSOC:
3393 wpa_supplicant_event_assoc(wpa_s, data);
3394 if (data && data->assoc_info.authorized)
3395 wpa_supplicant_event_assoc_auth(wpa_s, data);
3396 if (data) {
3397 wpa_msg(wpa_s, MSG_INFO,
3398 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
3399 data->assoc_info.subnet_status);
3400 }
3401 break;
3402 case EVENT_DISASSOC:
3403 wpas_event_disassoc(wpa_s,
3404 data ? &data->disassoc_info : NULL);
3405 break;
3406 case EVENT_DEAUTH:
3407 wpas_event_deauth(wpa_s,
3408 data ? &data->deauth_info : NULL);
3409 break;
3410 case EVENT_MICHAEL_MIC_FAILURE:
3411 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3412 break;
3413 #ifndef CONFIG_NO_SCAN_PROCESSING
3414 case EVENT_SCAN_STARTED:
3415 if (wpa_s->own_scan_requested ||
3416 (data && !data->scan_info.external_scan)) {
3417 struct os_reltime diff;
3418
3419 os_get_reltime(&wpa_s->scan_start_time);
3420 os_reltime_sub(&wpa_s->scan_start_time,
3421 &wpa_s->scan_trigger_time, &diff);
3422 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3423 diff.sec, diff.usec);
3424 wpa_s->own_scan_requested = 0;
3425 wpa_s->own_scan_running = 1;
3426 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3427 wpa_s->manual_scan_use_id) {
3428 wpa_msg_ctrl(wpa_s, MSG_INFO,
3429 WPA_EVENT_SCAN_STARTED "id=%u",
3430 wpa_s->manual_scan_id);
3431 } else {
3432 wpa_msg_ctrl(wpa_s, MSG_INFO,
3433 WPA_EVENT_SCAN_STARTED);
3434 }
3435 } else {
3436 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3437 wpa_s->radio->external_scan_running = 1;
3438 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
3439 }
3440 break;
3441 case EVENT_SCAN_RESULTS:
3442 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3443 wpa_s->scan_res_handler = NULL;
3444 wpa_s->own_scan_running = 0;
3445 wpa_s->radio->external_scan_running = 0;
3446 wpa_s->last_scan_req = NORMAL_SCAN_REQ;
3447 break;
3448 }
3449
3450 if (!(data && data->scan_info.external_scan) &&
3451 os_reltime_initialized(&wpa_s->scan_start_time)) {
3452 struct os_reltime now, diff;
3453 os_get_reltime(&now);
3454 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3455 wpa_s->scan_start_time.sec = 0;
3456 wpa_s->scan_start_time.usec = 0;
3457 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3458 diff.sec, diff.usec);
3459 }
3460 if (wpa_supplicant_event_scan_results(wpa_s, data))
3461 break; /* interface may have been removed */
3462 if (!(data && data->scan_info.external_scan))
3463 wpa_s->own_scan_running = 0;
3464 if (data && data->scan_info.nl_scan_event)
3465 wpa_s->radio->external_scan_running = 0;
3466 radio_work_check_next(wpa_s);
3467 break;
3468 #endif /* CONFIG_NO_SCAN_PROCESSING */
3469 case EVENT_ASSOCINFO:
3470 wpa_supplicant_event_associnfo(wpa_s, data);
3471 break;
3472 case EVENT_INTERFACE_STATUS:
3473 wpa_supplicant_event_interface_status(wpa_s, data);
3474 break;
3475 case EVENT_PMKID_CANDIDATE:
3476 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3477 break;
3478 #ifdef CONFIG_PEERKEY
3479 case EVENT_STKSTART:
3480 wpa_supplicant_event_stkstart(wpa_s, data);
3481 break;
3482 #endif /* CONFIG_PEERKEY */
3483 #ifdef CONFIG_TDLS
3484 case EVENT_TDLS:
3485 wpa_supplicant_event_tdls(wpa_s, data);
3486 break;
3487 #endif /* CONFIG_TDLS */
3488 #ifdef CONFIG_WNM
3489 case EVENT_WNM:
3490 wpa_supplicant_event_wnm(wpa_s, data);
3491 break;
3492 #endif /* CONFIG_WNM */
3493 #ifdef CONFIG_IEEE80211R
3494 case EVENT_FT_RESPONSE:
3495 wpa_supplicant_event_ft_response(wpa_s, data);
3496 break;
3497 #endif /* CONFIG_IEEE80211R */
3498 #ifdef CONFIG_IBSS_RSN
3499 case EVENT_IBSS_RSN_START:
3500 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3501 break;
3502 #endif /* CONFIG_IBSS_RSN */
3503 case EVENT_ASSOC_REJECT:
3504 if (data->assoc_reject.bssid)
3505 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3506 "bssid=" MACSTR " status_code=%u",
3507 MAC2STR(data->assoc_reject.bssid),
3508 data->assoc_reject.status_code);
3509 else
3510 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3511 "status_code=%u",
3512 data->assoc_reject.status_code);
3513 wpa_s->assoc_status_code = data->assoc_reject.status_code;
3514 wpas_notify_assoc_status_code(wpa_s);
3515 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3516 sme_event_assoc_reject(wpa_s, data);
3517 else {
3518 const u8 *bssid = data->assoc_reject.bssid;
3519 if (bssid == NULL || is_zero_ether_addr(bssid))
3520 bssid = wpa_s->pending_bssid;
3521 wpas_connection_failed(wpa_s, bssid);
3522 wpa_supplicant_mark_disassoc(wpa_s);
3523 }
3524 break;
3525 case EVENT_AUTH_TIMED_OUT:
3526 /* It is possible to get this event from earlier connection */
3527 if (wpa_s->current_ssid &&
3528 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3529 wpa_dbg(wpa_s, MSG_DEBUG,
3530 "Ignore AUTH_TIMED_OUT in mesh configuration");
3531 break;
3532 }
3533 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3534 sme_event_auth_timed_out(wpa_s, data);
3535 break;
3536 case EVENT_ASSOC_TIMED_OUT:
3537 /* It is possible to get this event from earlier connection */
3538 if (wpa_s->current_ssid &&
3539 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3540 wpa_dbg(wpa_s, MSG_DEBUG,
3541 "Ignore ASSOC_TIMED_OUT in mesh configuration");
3542 break;
3543 }
3544 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3545 sme_event_assoc_timed_out(wpa_s, data);
3546 break;
3547 case EVENT_TX_STATUS:
3548 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3549 " type=%d stype=%d",
3550 MAC2STR(data->tx_status.dst),
3551 data->tx_status.type, data->tx_status.stype);
3552 #ifdef CONFIG_AP
3553 if (wpa_s->ap_iface == NULL) {
3554 #ifdef CONFIG_OFFCHANNEL
3555 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3556 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
3557 offchannel_send_action_tx_status(
3558 wpa_s, data->tx_status.dst,
3559 data->tx_status.data,
3560 data->tx_status.data_len,
3561 data->tx_status.ack ?
3562 OFFCHANNEL_SEND_ACTION_SUCCESS :
3563 OFFCHANNEL_SEND_ACTION_NO_ACK);
3564 #endif /* CONFIG_OFFCHANNEL */
3565 break;
3566 }
3567 #endif /* CONFIG_AP */
3568 #ifdef CONFIG_OFFCHANNEL
3569 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3570 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
3571 /*
3572 * Catch TX status events for Action frames we sent via group
3573 * interface in GO mode.
3574 */
3575 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3576 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3577 os_memcmp(wpa_s->parent->pending_action_dst,
3578 data->tx_status.dst, ETH_ALEN) == 0) {
3579 offchannel_send_action_tx_status(
3580 wpa_s->parent, data->tx_status.dst,
3581 data->tx_status.data,
3582 data->tx_status.data_len,
3583 data->tx_status.ack ?
3584 OFFCHANNEL_SEND_ACTION_SUCCESS :
3585 OFFCHANNEL_SEND_ACTION_NO_ACK);
3586 break;
3587 }
3588 #endif /* CONFIG_OFFCHANNEL */
3589 #ifdef CONFIG_AP
3590 switch (data->tx_status.type) {
3591 case WLAN_FC_TYPE_MGMT:
3592 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3593 data->tx_status.data_len,
3594 data->tx_status.stype,
3595 data->tx_status.ack);
3596 break;
3597 case WLAN_FC_TYPE_DATA:
3598 ap_tx_status(wpa_s, data->tx_status.dst,
3599 data->tx_status.data,
3600 data->tx_status.data_len,
3601 data->tx_status.ack);
3602 break;
3603 }
3604 #endif /* CONFIG_AP */
3605 break;
3606 #ifdef CONFIG_AP
3607 case EVENT_EAPOL_TX_STATUS:
3608 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3609 data->eapol_tx_status.data,
3610 data->eapol_tx_status.data_len,
3611 data->eapol_tx_status.ack);
3612 break;
3613 case EVENT_DRIVER_CLIENT_POLL_OK:
3614 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3615 break;
3616 case EVENT_RX_FROM_UNKNOWN:
3617 if (wpa_s->ap_iface == NULL)
3618 break;
3619 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3620 data->rx_from_unknown.wds);
3621 break;
3622 case EVENT_CH_SWITCH:
3623 if (!data || !wpa_s->current_ssid)
3624 break;
3625
3626 wpa_s->assoc_freq = data->ch_switch.freq;
3627 wpa_s->current_ssid->frequency = data->ch_switch.freq;
3628
3629 if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
3630 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
3631 wpa_s->current_ssid->mode ==
3632 WPAS_MODE_P2P_GROUP_FORMATION) {
3633 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3634 data->ch_switch.ht_enabled,
3635 data->ch_switch.ch_offset,
3636 data->ch_switch.ch_width,
3637 data->ch_switch.cf1,
3638 data->ch_switch.cf2);
3639 }
3640
3641 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
3642 break;
3643 #ifdef NEED_AP_MLME
3644 case EVENT_DFS_RADAR_DETECTED:
3645 if (data)
3646 wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event);
3647 break;
3648 case EVENT_DFS_CAC_STARTED:
3649 if (data)
3650 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
3651 break;
3652 case EVENT_DFS_CAC_FINISHED:
3653 if (data)
3654 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
3655 break;
3656 case EVENT_DFS_CAC_ABORTED:
3657 if (data)
3658 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
3659 break;
3660 case EVENT_DFS_NOP_FINISHED:
3661 if (data)
3662 wpas_event_dfs_cac_nop_finished(wpa_s,
3663 &data->dfs_event);
3664 break;
3665 #endif /* NEED_AP_MLME */
3666 #endif /* CONFIG_AP */
3667 case EVENT_RX_MGMT: {
3668 u16 fc, stype;
3669 const struct ieee80211_mgmt *mgmt;
3670
3671 #ifdef CONFIG_TESTING_OPTIONS
3672 if (wpa_s->ext_mgmt_frame_handling) {
3673 struct rx_mgmt *rx = &data->rx_mgmt;
3674 size_t hex_len = 2 * rx->frame_len + 1;
3675 char *hex = os_malloc(hex_len);
3676 if (hex) {
3677 wpa_snprintf_hex(hex, hex_len,
3678 rx->frame, rx->frame_len);
3679 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3680 rx->freq, rx->datarate, rx->ssi_signal,
3681 hex);
3682 os_free(hex);
3683 }
3684 break;
3685 }
3686 #endif /* CONFIG_TESTING_OPTIONS */
3687
3688 mgmt = (const struct ieee80211_mgmt *)
3689 data->rx_mgmt.frame;
3690 fc = le_to_host16(mgmt->frame_control);
3691 stype = WLAN_FC_GET_STYPE(fc);
3692
3693 #ifdef CONFIG_AP
3694 if (wpa_s->ap_iface == NULL) {
3695 #endif /* CONFIG_AP */
3696 #ifdef CONFIG_P2P
3697 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3698 data->rx_mgmt.frame_len > 24) {
3699 const u8 *src = mgmt->sa;
3700 const u8 *ie = mgmt->u.probe_req.variable;
3701 size_t ie_len = data->rx_mgmt.frame_len -
3702 (mgmt->u.probe_req.variable -
3703 data->rx_mgmt.frame);
3704 wpas_p2p_probe_req_rx(
3705 wpa_s, src, mgmt->da,
3706 mgmt->bssid, ie, ie_len,
3707 data->rx_mgmt.freq,
3708 data->rx_mgmt.ssi_signal);
3709 break;
3710 }
3711 #endif /* CONFIG_P2P */
3712 #ifdef CONFIG_IBSS_RSN
3713 if (wpa_s->current_ssid &&
3714 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3715 stype == WLAN_FC_STYPE_AUTH &&
3716 data->rx_mgmt.frame_len >= 30) {
3717 wpa_supplicant_event_ibss_auth(wpa_s, data);
3718 break;
3719 }
3720 #endif /* CONFIG_IBSS_RSN */
3721
3722 if (stype == WLAN_FC_STYPE_ACTION) {
3723 wpas_event_rx_mgmt_action(
3724 wpa_s, data->rx_mgmt.frame,
3725 data->rx_mgmt.frame_len,
3726 data->rx_mgmt.freq,
3727 data->rx_mgmt.ssi_signal);
3728 break;
3729 }
3730
3731 if (wpa_s->ifmsh) {
3732 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3733 break;
3734 }
3735
3736 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3737 "management frame in non-AP mode");
3738 break;
3739 #ifdef CONFIG_AP
3740 }
3741
3742 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3743 data->rx_mgmt.frame_len > 24) {
3744 const u8 *ie = mgmt->u.probe_req.variable;
3745 size_t ie_len = data->rx_mgmt.frame_len -
3746 (mgmt->u.probe_req.variable -
3747 data->rx_mgmt.frame);
3748
3749 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3750 mgmt->bssid, ie, ie_len,
3751 data->rx_mgmt.ssi_signal);
3752 }
3753
3754 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
3755 #endif /* CONFIG_AP */
3756 break;
3757 }
3758 case EVENT_RX_PROBE_REQ:
3759 if (data->rx_probe_req.sa == NULL ||
3760 data->rx_probe_req.ie == NULL)
3761 break;
3762 #ifdef CONFIG_AP
3763 if (wpa_s->ap_iface) {
3764 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3765 data->rx_probe_req.sa,
3766 data->rx_probe_req.da,
3767 data->rx_probe_req.bssid,
3768 data->rx_probe_req.ie,
3769 data->rx_probe_req.ie_len,
3770 data->rx_probe_req.ssi_signal);
3771 break;
3772 }
3773 #endif /* CONFIG_AP */
3774 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
3775 data->rx_probe_req.da,
3776 data->rx_probe_req.bssid,
3777 data->rx_probe_req.ie,
3778 data->rx_probe_req.ie_len,
3779 0,
3780 data->rx_probe_req.ssi_signal);
3781 break;
3782 case EVENT_REMAIN_ON_CHANNEL:
3783 #ifdef CONFIG_OFFCHANNEL
3784 offchannel_remain_on_channel_cb(
3785 wpa_s, data->remain_on_channel.freq,
3786 data->remain_on_channel.duration);
3787 #endif /* CONFIG_OFFCHANNEL */
3788 wpas_p2p_remain_on_channel_cb(
3789 wpa_s, data->remain_on_channel.freq,
3790 data->remain_on_channel.duration);
3791 break;
3792 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
3793 #ifdef CONFIG_OFFCHANNEL
3794 offchannel_cancel_remain_on_channel_cb(
3795 wpa_s, data->remain_on_channel.freq);
3796 #endif /* CONFIG_OFFCHANNEL */
3797 wpas_p2p_cancel_remain_on_channel_cb(
3798 wpa_s, data->remain_on_channel.freq);
3799 break;
3800 case EVENT_EAPOL_RX:
3801 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3802 data->eapol_rx.data,
3803 data->eapol_rx.data_len);
3804 break;
3805 case EVENT_SIGNAL_CHANGE:
3806 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3807 "above=%d signal=%d noise=%d txrate=%d",
3808 data->signal_change.above_threshold,
3809 data->signal_change.current_signal,
3810 data->signal_change.current_noise,
3811 data->signal_change.current_txrate);
3812 wpa_bss_update_level(wpa_s->current_bss,
3813 data->signal_change.current_signal);
3814 bgscan_notify_signal_change(
3815 wpa_s, data->signal_change.above_threshold,
3816 data->signal_change.current_signal,
3817 data->signal_change.current_noise,
3818 data->signal_change.current_txrate);
3819 break;
3820 case EVENT_INTERFACE_ENABLED:
3821 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
3822 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3823 wpa_supplicant_update_mac_addr(wpa_s);
3824 if (wpa_s->p2p_mgmt) {
3825 wpa_supplicant_set_state(wpa_s,
3826 WPA_DISCONNECTED);
3827 break;
3828 }
3829
3830 #ifdef CONFIG_AP
3831 if (!wpa_s->ap_iface) {
3832 wpa_supplicant_set_state(wpa_s,
3833 WPA_DISCONNECTED);
3834 wpa_s->scan_req = NORMAL_SCAN_REQ;
3835 wpa_supplicant_req_scan(wpa_s, 0, 0);
3836 } else
3837 wpa_supplicant_set_state(wpa_s,
3838 WPA_COMPLETED);
3839 #else /* CONFIG_AP */
3840 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3841 wpa_supplicant_req_scan(wpa_s, 0, 0);
3842 #endif /* CONFIG_AP */
3843 }
3844 break;
3845 case EVENT_INTERFACE_DISABLED:
3846 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
3847 #ifdef CONFIG_P2P
3848 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3849 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3850 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
3851 /*
3852 * Mark interface disabled if this happens to end up not
3853 * being removed as a separate P2P group interface.
3854 */
3855 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3856 /*
3857 * The interface was externally disabled. Remove
3858 * it assuming an external entity will start a
3859 * new session if needed.
3860 */
3861 if (wpa_s->current_ssid &&
3862 wpa_s->current_ssid->p2p_group)
3863 wpas_p2p_interface_unavailable(wpa_s);
3864 else
3865 wpas_p2p_disconnect(wpa_s);
3866 /*
3867 * wpa_s instance may have been freed, so must not use
3868 * it here anymore.
3869 */
3870 break;
3871 }
3872 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3873 p2p_in_progress(wpa_s->global->p2p) > 1) {
3874 /* This radio work will be cancelled, so clear P2P
3875 * state as well.
3876 */
3877 p2p_stop_find(wpa_s->global->p2p);
3878 }
3879 #endif /* CONFIG_P2P */
3880
3881 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3882 /*
3883 * Indicate disconnection to keep ctrl_iface events
3884 * consistent.
3885 */
3886 wpa_supplicant_event_disassoc(
3887 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3888 }
3889 wpa_supplicant_mark_disassoc(wpa_s);
3890 radio_remove_works(wpa_s, NULL, 0);
3891
3892 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3893 break;
3894 case EVENT_CHANNEL_LIST_CHANGED:
3895 wpa_supplicant_update_channel_list(
3896 wpa_s, &data->channel_list_changed);
3897 break;
3898 case EVENT_INTERFACE_UNAVAILABLE:
3899 wpas_p2p_interface_unavailable(wpa_s);
3900 break;
3901 case EVENT_BEST_CHANNEL:
3902 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3903 "(%d %d %d)",
3904 data->best_chan.freq_24, data->best_chan.freq_5,
3905 data->best_chan.freq_overall);
3906 wpa_s->best_24_freq = data->best_chan.freq_24;
3907 wpa_s->best_5_freq = data->best_chan.freq_5;
3908 wpa_s->best_overall_freq = data->best_chan.freq_overall;
3909 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3910 data->best_chan.freq_5,
3911 data->best_chan.freq_overall);
3912 break;
3913 case EVENT_UNPROT_DEAUTH:
3914 wpa_supplicant_event_unprot_deauth(wpa_s,
3915 &data->unprot_deauth);
3916 break;
3917 case EVENT_UNPROT_DISASSOC:
3918 wpa_supplicant_event_unprot_disassoc(wpa_s,
3919 &data->unprot_disassoc);
3920 break;
3921 case EVENT_STATION_LOW_ACK:
3922 #ifdef CONFIG_AP
3923 if (wpa_s->ap_iface && data)
3924 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3925 data->low_ack.addr);
3926 #endif /* CONFIG_AP */
3927 #ifdef CONFIG_TDLS
3928 if (data)
3929 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
3930 data->low_ack.addr);
3931 #endif /* CONFIG_TDLS */
3932 break;
3933 case EVENT_IBSS_PEER_LOST:
3934 #ifdef CONFIG_IBSS_RSN
3935 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
3936 #endif /* CONFIG_IBSS_RSN */
3937 break;
3938 case EVENT_DRIVER_GTK_REKEY:
3939 if (os_memcmp(data->driver_gtk_rekey.bssid,
3940 wpa_s->bssid, ETH_ALEN))
3941 break;
3942 if (!wpa_s->wpa)
3943 break;
3944 wpa_sm_update_replay_ctr(wpa_s->wpa,
3945 data->driver_gtk_rekey.replay_ctr);
3946 break;
3947 case EVENT_SCHED_SCAN_STOPPED:
3948 wpa_s->pno = 0;
3949 wpa_s->sched_scanning = 0;
3950 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
3951 wpa_supplicant_notify_scanning(wpa_s, 0);
3952
3953 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
3954 break;
3955
3956 /*
3957 * Start a new sched scan to continue searching for more SSIDs
3958 * either if timed out or PNO schedule scan is pending.
3959 */
3960 if (wpa_s->sched_scan_timed_out) {
3961 wpa_supplicant_req_sched_scan(wpa_s);
3962 } else if (wpa_s->pno_sched_pending) {
3963 wpa_s->pno_sched_pending = 0;
3964 wpas_start_pno(wpa_s);
3965 } else if (resched) {
3966 wpa_supplicant_req_scan(wpa_s, 0, 0);
3967 }
3968
3969 break;
3970 case EVENT_WPS_BUTTON_PUSHED:
3971 #ifdef CONFIG_WPS
3972 wpas_wps_start_pbc(wpa_s, NULL, 0);
3973 #endif /* CONFIG_WPS */
3974 break;
3975 case EVENT_AVOID_FREQUENCIES:
3976 wpa_supplicant_notify_avoid_freq(wpa_s, data);
3977 break;
3978 case EVENT_CONNECT_FAILED_REASON:
3979 #ifdef CONFIG_AP
3980 if (!wpa_s->ap_iface || !data)
3981 break;
3982 hostapd_event_connect_failed_reason(
3983 wpa_s->ap_iface->bss[0],
3984 data->connect_failed_reason.addr,
3985 data->connect_failed_reason.code);
3986 #endif /* CONFIG_AP */
3987 break;
3988 case EVENT_NEW_PEER_CANDIDATE:
3989 #ifdef CONFIG_MESH
3990 if (!wpa_s->ifmsh || !data)
3991 break;
3992 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
3993 data->mesh_peer.ies,
3994 data->mesh_peer.ie_len);
3995 #endif /* CONFIG_MESH */
3996 break;
3997 case EVENT_SURVEY:
3998 #ifdef CONFIG_AP
3999 if (!wpa_s->ap_iface)
4000 break;
4001 hostapd_event_get_survey(wpa_s->ap_iface,
4002 &data->survey_results);
4003 #endif /* CONFIG_AP */
4004 break;
4005 case EVENT_ACS_CHANNEL_SELECTED:
4006 #ifdef CONFIG_ACS
4007 if (!wpa_s->ap_iface)
4008 break;
4009 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
4010 &data->acs_selected_channels);
4011 #endif /* CONFIG_ACS */
4012 break;
4013 default:
4014 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
4015 break;
4016 }
4017 }
4018
4019
4020 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
4021 union wpa_event_data *data)
4022 {
4023 struct wpa_supplicant *wpa_s;
4024
4025 if (event != EVENT_INTERFACE_STATUS)
4026 return;
4027
4028 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
4029 if (wpa_s && wpa_s->driver->get_ifindex) {
4030 unsigned int ifindex;
4031
4032 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
4033 if (ifindex != data->interface_status.ifindex) {
4034 wpa_dbg(wpa_s, MSG_DEBUG,
4035 "interface status ifindex %d mismatch (%d)",
4036 ifindex, data->interface_status.ifindex);
4037 return;
4038 }
4039 }
4040 #ifdef CONFIG_MATCH_IFACE
4041 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
4042 struct wpa_interface *wpa_i;
4043
4044 wpa_i = wpa_supplicant_match_iface(
4045 ctx, data->interface_status.ifname);
4046 if (!wpa_i)
4047 return;
4048 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
4049 os_free(wpa_i);
4050 if (wpa_s)
4051 wpa_s->matched = 1;
4052 }
4053 #endif /* CONFIG_MATCH_IFACE */
4054
4055 if (wpa_s)
4056 wpa_supplicant_event(wpa_s, event, data);
4057 }
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