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
52static 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
57static 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 */
86static 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
114void 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
130static 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
145static 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
161static 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
247void 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
269void 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
312static 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
337static 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
357static 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 */
388int 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
451static 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
464static 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
499static 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
668static 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
682static 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 */
790static 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
802static 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
814static 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
829struct 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
1106static struct wpa_bss *
1107wpa_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
1138struct 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
1211static 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
1231int 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
1294static struct wpa_ssid *
1295wpa_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 */
1317static 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
1342static 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	int to_5ghz;
1350#endif /* CONFIG_NO_ROAMING */
1351
1352	if (wpa_s->reassociate)
1353		return 1; /* explicit request to reassociate */
1354	if (wpa_s->wpa_state < WPA_ASSOCIATED)
1355		return 1; /* we are not associated; continue */
1356	if (wpa_s->current_ssid == NULL)
1357		return 1; /* unknown current SSID */
1358	if (wpa_s->current_ssid != ssid)
1359		return 1; /* different network block */
1360
1361	if (wpas_driver_bss_selection(wpa_s))
1362		return 0; /* Driver-based roaming */
1363
1364	if (wpa_s->current_ssid->ssid)
1365		current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1366					  wpa_s->current_ssid->ssid,
1367					  wpa_s->current_ssid->ssid_len);
1368	if (!current_bss)
1369		current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1370
1371	if (!current_bss)
1372		return 1; /* current BSS not seen in scan results */
1373
1374	if (current_bss == selected)
1375		return 0;
1376
1377	if (selected->last_update_idx > current_bss->last_update_idx)
1378		return 1; /* current BSS not seen in the last scan */
1379
1380#ifndef CONFIG_NO_ROAMING
1381	wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1382	wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1383		" level=%d snr=%d est_throughput=%u",
1384		MAC2STR(current_bss->bssid), current_bss->level,
1385		current_bss->snr, current_bss->est_throughput);
1386	wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1387		" level=%d snr=%d est_throughput=%u",
1388		MAC2STR(selected->bssid), selected->level,
1389		selected->snr, selected->est_throughput);
1390
1391	if (wpa_s->current_ssid->bssid_set &&
1392	    os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1393	    0) {
1394		wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1395			"has preferred BSSID");
1396		return 1;
1397	}
1398
1399	if (selected->est_throughput > current_bss->est_throughput + 5000) {
1400		wpa_dbg(wpa_s, MSG_DEBUG,
1401			"Allow reassociation - selected BSS has better estimated throughput");
1402		return 1;
1403	}
1404
1405	to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
1406
1407	if (current_bss->level < 0 &&
1408	    current_bss->level > selected->level + to_5ghz * 2) {
1409		wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1410			"signal level");
1411		return 0;
1412	}
1413
1414	min_diff = 2;
1415	if (current_bss->level < 0) {
1416		if (current_bss->level < -85)
1417			min_diff = 1;
1418		else if (current_bss->level < -80)
1419			min_diff = 2;
1420		else if (current_bss->level < -75)
1421			min_diff = 3;
1422		else if (current_bss->level < -70)
1423			min_diff = 4;
1424		else
1425			min_diff = 5;
1426	}
1427	if (to_5ghz) {
1428		/* Make it easier to move to 5 GHz band */
1429		if (min_diff > 2)
1430			min_diff -= 2;
1431		else
1432			min_diff = 0;
1433	}
1434	if (abs(current_bss->level - selected->level) < min_diff) {
1435		wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1436			"in signal level");
1437		return 0;
1438	}
1439
1440	return 1;
1441#else /* CONFIG_NO_ROAMING */
1442	return 0;
1443#endif /* CONFIG_NO_ROAMING */
1444}
1445
1446
1447/* Return != 0 if no scan results could be fetched or if scan results should not
1448 * be shared with other virtual interfaces. */
1449static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1450					      union wpa_event_data *data,
1451					      int own_request)
1452{
1453	struct wpa_scan_results *scan_res = NULL;
1454	int ret = 0;
1455	int ap = 0;
1456#ifndef CONFIG_NO_RANDOM_POOL
1457	size_t i, num;
1458#endif /* CONFIG_NO_RANDOM_POOL */
1459
1460#ifdef CONFIG_AP
1461	if (wpa_s->ap_iface)
1462		ap = 1;
1463#endif /* CONFIG_AP */
1464
1465	wpa_supplicant_notify_scanning(wpa_s, 0);
1466
1467	scan_res = wpa_supplicant_get_scan_results(wpa_s,
1468						   data ? &data->scan_info :
1469						   NULL, 1);
1470	if (scan_res == NULL) {
1471		if (wpa_s->conf->ap_scan == 2 || ap ||
1472		    wpa_s->scan_res_handler == scan_only_handler)
1473			return -1;
1474		if (!own_request)
1475			return -1;
1476		if (data && data->scan_info.external_scan)
1477			return -1;
1478		wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1479			"scanning again");
1480		wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1481		ret = -1;
1482		goto scan_work_done;
1483	}
1484
1485#ifndef CONFIG_NO_RANDOM_POOL
1486	num = scan_res->num;
1487	if (num > 10)
1488		num = 10;
1489	for (i = 0; i < num; i++) {
1490		u8 buf[5];
1491		struct wpa_scan_res *res = scan_res->res[i];
1492		buf[0] = res->bssid[5];
1493		buf[1] = res->qual & 0xff;
1494		buf[2] = res->noise & 0xff;
1495		buf[3] = res->level & 0xff;
1496		buf[4] = res->tsf & 0xff;
1497		random_add_randomness(buf, sizeof(buf));
1498	}
1499#endif /* CONFIG_NO_RANDOM_POOL */
1500
1501	if (own_request && wpa_s->scan_res_handler &&
1502	    !(data && data->scan_info.external_scan)) {
1503		void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1504					 struct wpa_scan_results *scan_res);
1505
1506		scan_res_handler = wpa_s->scan_res_handler;
1507		wpa_s->scan_res_handler = NULL;
1508		scan_res_handler(wpa_s, scan_res);
1509		ret = -2;
1510		goto scan_work_done;
1511	}
1512
1513	if (ap) {
1514		wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1515#ifdef CONFIG_AP
1516		if (wpa_s->ap_iface->scan_cb)
1517			wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1518#endif /* CONFIG_AP */
1519		goto scan_work_done;
1520	}
1521
1522	wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1523		wpa_s->own_scan_running,
1524		data ? data->scan_info.external_scan : 0);
1525	if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1526	    wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
1527	    own_request && !(data && data->scan_info.external_scan)) {
1528		wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1529			     wpa_s->manual_scan_id);
1530		wpa_s->manual_scan_use_id = 0;
1531	} else {
1532		wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1533	}
1534	wpas_notify_scan_results(wpa_s);
1535
1536	wpas_notify_scan_done(wpa_s, 1);
1537
1538	if (data && data->scan_info.external_scan) {
1539		wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1540		wpa_scan_results_free(scan_res);
1541		return 0;
1542	}
1543
1544	if (wnm_scan_process(wpa_s, 1) > 0)
1545		goto scan_work_done;
1546
1547	if (sme_proc_obss_scan(wpa_s) > 0)
1548		goto scan_work_done;
1549
1550	if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1551		goto scan_work_done;
1552
1553	if (autoscan_notify_scan(wpa_s, scan_res))
1554		goto scan_work_done;
1555
1556	if (wpa_s->disconnected) {
1557		wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1558		goto scan_work_done;
1559	}
1560
1561	if (!wpas_driver_bss_selection(wpa_s) &&
1562	    bgscan_notify_scan(wpa_s, scan_res) == 1)
1563		goto scan_work_done;
1564
1565	wpas_wps_update_ap_info(wpa_s, scan_res);
1566
1567	if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
1568	    wpa_s->wpa_state < WPA_COMPLETED)
1569		goto scan_work_done;
1570
1571	wpa_scan_results_free(scan_res);
1572
1573	if (own_request && wpa_s->scan_work) {
1574		struct wpa_radio_work *work = wpa_s->scan_work;
1575		wpa_s->scan_work = NULL;
1576		radio_work_done(work);
1577	}
1578
1579	return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
1580
1581scan_work_done:
1582	wpa_scan_results_free(scan_res);
1583	if (own_request && wpa_s->scan_work) {
1584		struct wpa_radio_work *work = wpa_s->scan_work;
1585		wpa_s->scan_work = NULL;
1586		radio_work_done(work);
1587	}
1588	return ret;
1589}
1590
1591
1592static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
1593					      int new_scan, int own_request)
1594{
1595	struct wpa_bss *selected;
1596	struct wpa_ssid *ssid = NULL;
1597	int time_to_reenable = wpas_reenabled_network_time(wpa_s);
1598
1599	if (time_to_reenable > 0) {
1600		wpa_dbg(wpa_s, MSG_DEBUG,
1601			"Postpone network selection by %d seconds since all networks are disabled",
1602			time_to_reenable);
1603		eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
1604		eloop_register_timeout(time_to_reenable, 0,
1605				       wpas_network_reenabled, wpa_s, NULL);
1606		return 0;
1607	}
1608
1609	if (wpa_s->p2p_mgmt)
1610		return 0; /* no normal connection on p2p_mgmt interface */
1611
1612	selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1613
1614	if (selected) {
1615		int skip;
1616		skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1617		if (skip) {
1618			if (new_scan)
1619				wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1620			return 0;
1621		}
1622
1623		if (ssid != wpa_s->current_ssid &&
1624		    wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1625			wpa_s->own_disconnect_req = 1;
1626			wpa_supplicant_deauthenticate(
1627				wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1628		}
1629
1630		if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1631			wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1632			return -1;
1633		}
1634		if (new_scan)
1635			wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1636		/*
1637		 * Do not notify other virtual radios of scan results since we do not
1638		 * want them to start other associations at the same time.
1639		 */
1640		return 1;
1641	} else {
1642#ifdef CONFIG_MESH
1643		if (wpa_s->ifmsh) {
1644			wpa_msg(wpa_s, MSG_INFO,
1645				"Avoiding join because we already joined a mesh group");
1646			return 0;
1647		}
1648#endif /* CONFIG_MESH */
1649		wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1650		ssid = wpa_supplicant_pick_new_network(wpa_s);
1651		if (ssid) {
1652			wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1653			wpa_supplicant_associate(wpa_s, NULL, ssid);
1654			if (new_scan)
1655				wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1656		} else if (own_request) {
1657			/*
1658			 * No SSID found. If SCAN results are as a result of
1659			 * own scan request and not due to a scan request on
1660			 * another shared interface, try another scan.
1661			 */
1662			int timeout_sec = wpa_s->scan_interval;
1663			int timeout_usec = 0;
1664#ifdef CONFIG_P2P
1665			int res;
1666
1667			res = wpas_p2p_scan_no_go_seen(wpa_s);
1668			if (res == 2)
1669				return 2;
1670			if (res == 1)
1671				return 0;
1672
1673			if (wpa_s->p2p_in_provisioning ||
1674			    wpa_s->show_group_started ||
1675			    wpa_s->p2p_in_invitation) {
1676				/*
1677				 * Use shorter wait during P2P Provisioning
1678				 * state and during P2P join-a-group operation
1679				 * to speed up group formation.
1680				 */
1681				timeout_sec = 0;
1682				timeout_usec = 250000;
1683				wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1684							    timeout_usec);
1685				return 0;
1686			}
1687#endif /* CONFIG_P2P */
1688#ifdef CONFIG_INTERWORKING
1689			if (wpa_s->conf->auto_interworking &&
1690			    wpa_s->conf->interworking &&
1691			    wpa_s->conf->cred) {
1692				wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1693					"start ANQP fetch since no matching "
1694					"networks found");
1695				wpa_s->network_select = 1;
1696				wpa_s->auto_network_select = 1;
1697				interworking_start_fetch_anqp(wpa_s);
1698				return 1;
1699			}
1700#endif /* CONFIG_INTERWORKING */
1701#ifdef CONFIG_WPS
1702			if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
1703				wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1704				timeout_sec = 0;
1705				timeout_usec = 500000;
1706				wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1707							    timeout_usec);
1708				return 0;
1709			}
1710#endif /* CONFIG_WPS */
1711			if (wpa_supplicant_req_sched_scan(wpa_s))
1712				wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1713							    timeout_usec);
1714
1715			wpa_msg_ctrl(wpa_s, MSG_INFO,
1716				     WPA_EVENT_NETWORK_NOT_FOUND);
1717		}
1718	}
1719	return 0;
1720}
1721
1722
1723static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1724					     union wpa_event_data *data)
1725{
1726	struct wpa_supplicant *ifs;
1727	int res;
1728
1729	res = _wpa_supplicant_event_scan_results(wpa_s, data, 1);
1730	if (res == 2) {
1731		/*
1732		 * Interface may have been removed, so must not dereference
1733		 * wpa_s after this.
1734		 */
1735		return 1;
1736	}
1737	if (res != 0) {
1738		/*
1739		 * If no scan results could be fetched, then no need to
1740		 * notify those interfaces that did not actually request
1741		 * this scan. Similarly, if scan results started a new operation on this
1742		 * interface, do not notify other interfaces to avoid concurrent
1743		 * operations during a connection attempt.
1744		 */
1745		return 0;
1746	}
1747
1748	/*
1749	 * Check other interfaces to see if they share the same radio. If
1750	 * so, they get updated with this same scan info.
1751	 */
1752	dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1753			 radio_list) {
1754		if (ifs != wpa_s) {
1755			wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1756				   "sibling", ifs->ifname);
1757			_wpa_supplicant_event_scan_results(ifs, data, 0);
1758		}
1759	}
1760
1761	return 0;
1762}
1763
1764#endif /* CONFIG_NO_SCAN_PROCESSING */
1765
1766
1767int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1768{
1769#ifdef CONFIG_NO_SCAN_PROCESSING
1770	return -1;
1771#else /* CONFIG_NO_SCAN_PROCESSING */
1772	struct os_reltime now;
1773
1774	if (wpa_s->last_scan_res_used == 0)
1775		return -1;
1776
1777	os_get_reltime(&now);
1778	if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
1779		wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1780		return -1;
1781	}
1782
1783	return wpas_select_network_from_last_scan(wpa_s, 0, 1);
1784#endif /* CONFIG_NO_SCAN_PROCESSING */
1785}
1786
1787#ifdef CONFIG_WNM
1788
1789static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1790{
1791	struct wpa_supplicant *wpa_s = eloop_ctx;
1792
1793	if (wpa_s->wpa_state < WPA_ASSOCIATED)
1794		return;
1795
1796	if (!wpa_s->no_keep_alive) {
1797		wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1798			   MAC2STR(wpa_s->bssid));
1799		/* TODO: could skip this if normal data traffic has been sent */
1800		/* TODO: Consider using some more appropriate data frame for
1801		 * this */
1802		if (wpa_s->l2)
1803			l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1804				       (u8 *) "", 0);
1805	}
1806
1807#ifdef CONFIG_SME
1808	if (wpa_s->sme.bss_max_idle_period) {
1809		unsigned int msec;
1810		msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1811		if (msec > 100)
1812			msec -= 100;
1813		eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1814				       wnm_bss_keep_alive, wpa_s, NULL);
1815	}
1816#endif /* CONFIG_SME */
1817}
1818
1819
1820static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1821				   const u8 *ies, size_t ies_len)
1822{
1823	struct ieee802_11_elems elems;
1824
1825	if (ies == NULL)
1826		return;
1827
1828	if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1829		return;
1830
1831#ifdef CONFIG_SME
1832	if (elems.bss_max_idle_period) {
1833		unsigned int msec;
1834		wpa_s->sme.bss_max_idle_period =
1835			WPA_GET_LE16(elems.bss_max_idle_period);
1836		wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1837			   "TU)%s", wpa_s->sme.bss_max_idle_period,
1838			   (elems.bss_max_idle_period[2] & 0x01) ?
1839			   " (protected keep-live required)" : "");
1840		if (wpa_s->sme.bss_max_idle_period == 0)
1841			wpa_s->sme.bss_max_idle_period = 1;
1842		if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1843			eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1844			 /* msec times 1000 */
1845			msec = wpa_s->sme.bss_max_idle_period * 1024;
1846			if (msec > 100)
1847				msec -= 100;
1848			eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1849					       wnm_bss_keep_alive, wpa_s,
1850					       NULL);
1851		}
1852	}
1853#endif /* CONFIG_SME */
1854}
1855
1856#endif /* CONFIG_WNM */
1857
1858
1859void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1860{
1861#ifdef CONFIG_WNM
1862	eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1863#endif /* CONFIG_WNM */
1864}
1865
1866
1867#ifdef CONFIG_INTERWORKING
1868
1869static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1870			    size_t len)
1871{
1872	int res;
1873
1874	wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1875	res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1876	if (res) {
1877		wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1878	}
1879
1880	return res;
1881}
1882
1883
1884static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1885					    const u8 *ies, size_t ies_len)
1886{
1887	struct ieee802_11_elems elems;
1888
1889	if (ies == NULL)
1890		return;
1891
1892	if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1893		return;
1894
1895	if (elems.qos_map_set) {
1896		wpas_qos_map_set(wpa_s, elems.qos_map_set,
1897				 elems.qos_map_set_len);
1898	}
1899}
1900
1901#endif /* CONFIG_INTERWORKING */
1902
1903
1904#ifdef CONFIG_FST
1905static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
1906				const u8 *ie, size_t ie_len)
1907{
1908	struct mb_ies_info mb_ies;
1909
1910	if (!ie || !ie_len || !wpa_s->fst)
1911	    return -ENOENT;
1912
1913	os_memset(&mb_ies, 0, sizeof(mb_ies));
1914
1915	while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
1916		size_t len;
1917
1918		len = 2 + ie[1];
1919		if (len > ie_len) {
1920			wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
1921				    ie, ie_len);
1922			break;
1923		}
1924
1925		if (ie[0] == WLAN_EID_MULTI_BAND) {
1926			wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
1927				   (unsigned int) len);
1928			mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
1929			mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
1930			mb_ies.nof_ies++;
1931		}
1932
1933		ie_len -= len;
1934		ie += len;
1935	}
1936
1937	if (mb_ies.nof_ies > 0) {
1938		wpabuf_free(wpa_s->received_mb_ies);
1939		wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
1940		return 0;
1941	}
1942
1943	return -ENOENT;
1944}
1945#endif /* CONFIG_FST */
1946
1947
1948static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1949					  union wpa_event_data *data)
1950{
1951	int l, len, found = 0, wpa_found, rsn_found;
1952	const u8 *p;
1953#ifdef CONFIG_IEEE80211R
1954	u8 bssid[ETH_ALEN];
1955#endif /* CONFIG_IEEE80211R */
1956
1957	wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1958	if (data->assoc_info.req_ies)
1959		wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1960			    data->assoc_info.req_ies_len);
1961	if (data->assoc_info.resp_ies) {
1962		wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1963			    data->assoc_info.resp_ies_len);
1964#ifdef CONFIG_TDLS
1965		wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1966					data->assoc_info.resp_ies_len);
1967#endif /* CONFIG_TDLS */
1968#ifdef CONFIG_WNM
1969		wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1970				       data->assoc_info.resp_ies_len);
1971#endif /* CONFIG_WNM */
1972#ifdef CONFIG_INTERWORKING
1973		interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1974						data->assoc_info.resp_ies_len);
1975#endif /* CONFIG_INTERWORKING */
1976	}
1977	if (data->assoc_info.beacon_ies)
1978		wpa_hexdump(MSG_DEBUG, "beacon_ies",
1979			    data->assoc_info.beacon_ies,
1980			    data->assoc_info.beacon_ies_len);
1981	if (data->assoc_info.freq)
1982		wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1983			data->assoc_info.freq);
1984
1985	p = data->assoc_info.req_ies;
1986	l = data->assoc_info.req_ies_len;
1987
1988	/* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1989	while (p && l >= 2) {
1990		len = p[1] + 2;
1991		if (len > l) {
1992			wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1993				    p, l);
1994			break;
1995		}
1996		if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1997		     (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1998		    (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
1999		     (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
2000		    (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
2001			if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
2002				break;
2003			found = 1;
2004			wpa_find_assoc_pmkid(wpa_s);
2005			break;
2006		}
2007		l -= len;
2008		p += len;
2009	}
2010	if (!found && data->assoc_info.req_ies)
2011		wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2012
2013#ifdef CONFIG_IEEE80211R
2014#ifdef CONFIG_SME
2015	if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
2016		if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2017		    wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2018						 data->assoc_info.resp_ies,
2019						 data->assoc_info.resp_ies_len,
2020						 bssid) < 0) {
2021			wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2022				"Reassociation Response failed");
2023			wpa_supplicant_deauthenticate(
2024				wpa_s, WLAN_REASON_INVALID_IE);
2025			return -1;
2026		}
2027	}
2028
2029	p = data->assoc_info.resp_ies;
2030	l = data->assoc_info.resp_ies_len;
2031
2032#ifdef CONFIG_WPS_STRICT
2033	if (p && wpa_s->current_ssid &&
2034	    wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
2035		struct wpabuf *wps;
2036		wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
2037		if (wps == NULL) {
2038			wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
2039				"include WPS IE in (Re)Association Response");
2040			return -1;
2041		}
2042
2043		if (wps_validate_assoc_resp(wps) < 0) {
2044			wpabuf_free(wps);
2045			wpa_supplicant_deauthenticate(
2046				wpa_s, WLAN_REASON_INVALID_IE);
2047			return -1;
2048		}
2049		wpabuf_free(wps);
2050	}
2051#endif /* CONFIG_WPS_STRICT */
2052
2053	/* Go through the IEs and make a copy of the MDIE, if present. */
2054	while (p && l >= 2) {
2055		len = p[1] + 2;
2056		if (len > l) {
2057			wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2058				    p, l);
2059			break;
2060		}
2061		if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
2062		    p[1] >= MOBILITY_DOMAIN_ID_LEN) {
2063			wpa_s->sme.ft_used = 1;
2064			os_memcpy(wpa_s->sme.mobility_domain, p + 2,
2065				  MOBILITY_DOMAIN_ID_LEN);
2066			break;
2067		}
2068		l -= len;
2069		p += len;
2070	}
2071#endif /* CONFIG_SME */
2072
2073	/* Process FT when SME is in the driver */
2074	if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
2075	    wpa_ft_is_completed(wpa_s->wpa)) {
2076		if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2077		    wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2078						 data->assoc_info.resp_ies,
2079						 data->assoc_info.resp_ies_len,
2080						 bssid) < 0) {
2081			wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2082				"Reassociation Response failed");
2083			wpa_supplicant_deauthenticate(
2084				wpa_s, WLAN_REASON_INVALID_IE);
2085			return -1;
2086		}
2087		wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
2088	}
2089
2090	wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
2091			     data->assoc_info.resp_ies_len);
2092#endif /* CONFIG_IEEE80211R */
2093
2094	/* WPA/RSN IE from Beacon/ProbeResp */
2095	p = data->assoc_info.beacon_ies;
2096	l = data->assoc_info.beacon_ies_len;
2097
2098	/* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
2099	 */
2100	wpa_found = rsn_found = 0;
2101	while (p && l >= 2) {
2102		len = p[1] + 2;
2103		if (len > l) {
2104			wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
2105				    p, l);
2106			break;
2107		}
2108		if (!wpa_found &&
2109		    p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2110		    os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
2111			wpa_found = 1;
2112			wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
2113		}
2114
2115		if (!rsn_found &&
2116		    p[0] == WLAN_EID_RSN && p[1] >= 2) {
2117			rsn_found = 1;
2118			wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
2119		}
2120
2121		l -= len;
2122		p += len;
2123	}
2124
2125	if (!wpa_found && data->assoc_info.beacon_ies)
2126		wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
2127	if (!rsn_found && data->assoc_info.beacon_ies)
2128		wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
2129	if (wpa_found || rsn_found)
2130		wpa_s->ap_ies_from_associnfo = 1;
2131
2132	if (wpa_s->assoc_freq && data->assoc_info.freq &&
2133	    wpa_s->assoc_freq != data->assoc_info.freq) {
2134		wpa_printf(MSG_DEBUG, "Operating frequency changed from "
2135			   "%u to %u MHz",
2136			   wpa_s->assoc_freq, data->assoc_info.freq);
2137		wpa_supplicant_update_scan_results(wpa_s);
2138	}
2139
2140	wpa_s->assoc_freq = data->assoc_info.freq;
2141
2142	return 0;
2143}
2144
2145
2146static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
2147{
2148	const u8 *bss_wpa = NULL, *bss_rsn = NULL;
2149
2150	if (!wpa_s->current_bss || !wpa_s->current_ssid)
2151		return -1;
2152
2153	if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
2154		return 0;
2155
2156	bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
2157					WPA_IE_VENDOR_TYPE);
2158	bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
2159
2160	if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
2161				 bss_wpa ? 2 + bss_wpa[1] : 0) ||
2162	    wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
2163				 bss_rsn ? 2 + bss_rsn[1] : 0))
2164		return -1;
2165
2166	return 0;
2167}
2168
2169
2170static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
2171				     union wpa_event_data *data)
2172{
2173#ifdef CONFIG_FST
2174	struct assoc_info *ai = data ? &data->assoc_info : NULL;
2175	struct wpa_bss *bss = wpa_s->current_bss;
2176	const u8 *ieprb, *iebcn;
2177
2178	wpabuf_free(wpa_s->received_mb_ies);
2179	wpa_s->received_mb_ies = NULL;
2180
2181	if (ai &&
2182	    !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
2183		wpa_printf(MSG_DEBUG,
2184			   "FST: MB IEs updated from Association Response frame");
2185		return;
2186	}
2187
2188	if (ai &&
2189	    !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
2190		wpa_printf(MSG_DEBUG,
2191			   "FST: MB IEs updated from association event Beacon IEs");
2192		return;
2193	}
2194
2195	if (!bss)
2196		return;
2197
2198	ieprb = (const u8 *) (bss + 1);
2199	iebcn = ieprb + bss->ie_len;
2200
2201	if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
2202		wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
2203	else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
2204		wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
2205#endif /* CONFIG_FST */
2206}
2207
2208
2209static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
2210				       union wpa_event_data *data)
2211{
2212	u8 bssid[ETH_ALEN];
2213	int ft_completed;
2214	int new_bss = 0;
2215
2216#ifdef CONFIG_AP
2217	if (wpa_s->ap_iface) {
2218		if (!data)
2219			return;
2220		hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
2221				    data->assoc_info.addr,
2222				    data->assoc_info.req_ies,
2223				    data->assoc_info.req_ies_len,
2224				    data->assoc_info.reassoc);
2225		return;
2226	}
2227#endif /* CONFIG_AP */
2228
2229	eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2230
2231	ft_completed = wpa_ft_is_completed(wpa_s->wpa);
2232	if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
2233		return;
2234
2235	if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
2236		wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
2237		wpa_supplicant_deauthenticate(
2238			wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2239		return;
2240	}
2241
2242	wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
2243	if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
2244		wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
2245			MACSTR, MAC2STR(bssid));
2246		new_bss = 1;
2247		random_add_randomness(bssid, ETH_ALEN);
2248		os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
2249		os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2250		wpas_notify_bssid_changed(wpa_s);
2251
2252		if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
2253			wpa_clear_keys(wpa_s, bssid);
2254		}
2255		if (wpa_supplicant_select_config(wpa_s) < 0) {
2256			wpa_supplicant_deauthenticate(
2257				wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2258			return;
2259		}
2260	}
2261
2262#ifdef ANDROID
2263	if (wpa_s->conf->ap_scan == 1) {
2264#else
2265	if (wpa_s->conf->ap_scan == 1 &&
2266	    wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
2267#endif
2268		if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
2269			wpa_msg(wpa_s, MSG_WARNING,
2270				"WPA/RSN IEs not updated");
2271	}
2272
2273	wpas_fst_update_mb_assoc(wpa_s, data);
2274
2275#ifdef CONFIG_SME
2276	os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
2277	wpa_s->sme.prev_bssid_set = 1;
2278	wpa_s->sme.last_unprot_disconnect.sec = 0;
2279#endif /* CONFIG_SME */
2280
2281	wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
2282	if (wpa_s->current_ssid) {
2283		/* When using scanning (ap_scan=1), SIM PC/SC interface can be
2284		 * initialized before association, but for other modes,
2285		 * initialize PC/SC here, if the current configuration needs
2286		 * smartcard or SIM/USIM. */
2287		wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
2288	}
2289	wpa_sm_notify_assoc(wpa_s->wpa, bssid);
2290	if (wpa_s->l2)
2291		l2_packet_notify_auth_start(wpa_s->l2);
2292
2293	/*
2294	 * Set portEnabled first to FALSE in order to get EAP state machine out
2295	 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
2296	 * state machine may transit to AUTHENTICATING state based on obsolete
2297	 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
2298	 * AUTHENTICATED without ever giving chance to EAP state machine to
2299	 * reset the state.
2300	 */
2301	if (!ft_completed) {
2302		eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
2303		eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
2304	}
2305	if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
2306		eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
2307	/* 802.1X::portControl = Auto */
2308	eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
2309	wpa_s->eapol_received = 0;
2310	if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2311	    wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
2312	    (wpa_s->current_ssid &&
2313	     wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
2314		if (wpa_s->current_ssid &&
2315		    wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
2316		    (wpa_s->drv_flags &
2317		     WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2318			/*
2319			 * Set the key after having received joined-IBSS event
2320			 * from the driver.
2321			 */
2322			wpa_supplicant_set_wpa_none_key(wpa_s,
2323							wpa_s->current_ssid);
2324		}
2325		wpa_supplicant_cancel_auth_timeout(wpa_s);
2326		wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2327	} else if (!ft_completed) {
2328		/* Timeout for receiving the first EAPOL packet */
2329		wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
2330	}
2331	wpa_supplicant_cancel_scan(wpa_s);
2332
2333	if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2334	    wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
2335		/*
2336		 * We are done; the driver will take care of RSN 4-way
2337		 * handshake.
2338		 */
2339		wpa_supplicant_cancel_auth_timeout(wpa_s);
2340		wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2341		eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2342		eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2343	} else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2344		   wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
2345		/*
2346		 * The driver will take care of RSN 4-way handshake, so we need
2347		 * to allow EAPOL supplicant to complete its work without
2348		 * waiting for WPA supplicant.
2349		 */
2350		eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2351	} else if (ft_completed) {
2352		/*
2353		 * FT protocol completed - make sure EAPOL state machine ends
2354		 * up in authenticated.
2355		 */
2356		wpa_supplicant_cancel_auth_timeout(wpa_s);
2357		wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2358		eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2359		eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2360	}
2361
2362	wpa_s->last_eapol_matches_bssid = 0;
2363
2364	if (wpa_s->pending_eapol_rx) {
2365		struct os_reltime now, age;
2366		os_get_reltime(&now);
2367		os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
2368		if (age.sec == 0 && age.usec < 100000 &&
2369		    os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2370		    0) {
2371			wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2372				"frame that was received just before "
2373				"association notification");
2374			wpa_supplicant_rx_eapol(
2375				wpa_s, wpa_s->pending_eapol_rx_src,
2376				wpabuf_head(wpa_s->pending_eapol_rx),
2377				wpabuf_len(wpa_s->pending_eapol_rx));
2378		}
2379		wpabuf_free(wpa_s->pending_eapol_rx);
2380		wpa_s->pending_eapol_rx = NULL;
2381	}
2382
2383	if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2384	     wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
2385	    wpa_s->current_ssid &&
2386	    (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2387		/* Set static WEP keys again */
2388		wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2389	}
2390
2391#ifdef CONFIG_IBSS_RSN
2392	if (wpa_s->current_ssid &&
2393	    wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2394	    wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2395	    wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2396	    wpa_s->ibss_rsn == NULL) {
2397		wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2398		if (!wpa_s->ibss_rsn) {
2399			wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2400			wpa_supplicant_deauthenticate(
2401				wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2402			return;
2403		}
2404
2405		ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2406	}
2407#endif /* CONFIG_IBSS_RSN */
2408
2409	wpas_wps_notify_assoc(wpa_s, bssid);
2410
2411	if (data) {
2412		wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2413				    data->assoc_info.resp_ies_len,
2414				    &data->assoc_info.wmm_params);
2415
2416		if (wpa_s->reassoc_same_bss)
2417			wmm_ac_restore_tspecs(wpa_s);
2418	}
2419}
2420
2421
2422static int disconnect_reason_recoverable(u16 reason_code)
2423{
2424	return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2425		reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2426		reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2427}
2428
2429
2430static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
2431					  u16 reason_code,
2432					  int locally_generated)
2433{
2434	const u8 *bssid;
2435
2436	if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2437		/*
2438		 * At least Host AP driver and a Prism3 card seemed to be
2439		 * generating streams of disconnected events when configuring
2440		 * IBSS for WPA-None. Ignore them for now.
2441		 */
2442		return;
2443	}
2444
2445	bssid = wpa_s->bssid;
2446	if (is_zero_ether_addr(bssid))
2447		bssid = wpa_s->pending_bssid;
2448
2449	if (!is_zero_ether_addr(bssid) ||
2450	    wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2451		wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2452			" reason=%d%s",
2453			MAC2STR(bssid), reason_code,
2454			locally_generated ? " locally_generated=1" : "");
2455	}
2456}
2457
2458
2459static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2460				 int locally_generated)
2461{
2462	if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2463	    !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2464		return 0; /* Not in 4-way handshake with PSK */
2465
2466	/*
2467	 * It looks like connection was lost while trying to go through PSK
2468	 * 4-way handshake. Filter out known disconnection cases that are caused
2469	 * by something else than PSK mismatch to avoid confusing reports.
2470	 */
2471
2472	if (locally_generated) {
2473		if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2474			return 0;
2475	}
2476
2477	return 1;
2478}
2479
2480
2481static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2482						 u16 reason_code,
2483						 int locally_generated)
2484{
2485	const u8 *bssid;
2486	int authenticating;
2487	u8 prev_pending_bssid[ETH_ALEN];
2488	struct wpa_bss *fast_reconnect = NULL;
2489	struct wpa_ssid *fast_reconnect_ssid = NULL;
2490	struct wpa_ssid *last_ssid;
2491
2492	authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2493	os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
2494
2495	if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2496		/*
2497		 * At least Host AP driver and a Prism3 card seemed to be
2498		 * generating streams of disconnected events when configuring
2499		 * IBSS for WPA-None. Ignore them for now.
2500		 */
2501		wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2502			"IBSS/WPA-None mode");
2503		return;
2504	}
2505
2506	if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
2507		wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2508			"pre-shared key may be incorrect");
2509		if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2510			return; /* P2P group removed */
2511		wpas_auth_failed(wpa_s, "WRONG_KEY");
2512	}
2513	if (!wpa_s->disconnected &&
2514	    (!wpa_s->auto_reconnect_disabled ||
2515	     wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
2516	     wpas_wps_searching(wpa_s) ||
2517	     wpas_wps_reenable_networks_pending(wpa_s))) {
2518		wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
2519			"reconnect (wps=%d/%d wpa_state=%d)",
2520			wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2521			wpas_wps_searching(wpa_s),
2522			wpa_s->wpa_state);
2523		if (wpa_s->wpa_state == WPA_COMPLETED &&
2524		    wpa_s->current_ssid &&
2525		    wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
2526		    !locally_generated &&
2527		    disconnect_reason_recoverable(reason_code)) {
2528			/*
2529			 * It looks like the AP has dropped association with
2530			 * us, but could allow us to get back in. Try to
2531			 * reconnect to the same BSS without full scan to save
2532			 * time for some common cases.
2533			 */
2534			fast_reconnect = wpa_s->current_bss;
2535			fast_reconnect_ssid = wpa_s->current_ssid;
2536		} else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
2537			wpa_supplicant_req_scan(wpa_s, 0, 100000);
2538		else
2539			wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2540				"immediate scan");
2541	} else {
2542		wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
2543			"try to re-connect");
2544		wpa_s->reassociate = 0;
2545		wpa_s->disconnected = 1;
2546		if (!wpa_s->pno)
2547			wpa_supplicant_cancel_sched_scan(wpa_s);
2548	}
2549	bssid = wpa_s->bssid;
2550	if (is_zero_ether_addr(bssid))
2551		bssid = wpa_s->pending_bssid;
2552	if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2553		wpas_connection_failed(wpa_s, bssid);
2554	wpa_sm_notify_disassoc(wpa_s->wpa);
2555	if (locally_generated)
2556		wpa_s->disconnect_reason = -reason_code;
2557	else
2558		wpa_s->disconnect_reason = reason_code;
2559	wpas_notify_disconnect_reason(wpa_s);
2560	if (wpa_supplicant_dynamic_keys(wpa_s)) {
2561		wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
2562		wpa_clear_keys(wpa_s, wpa_s->bssid);
2563	}
2564	last_ssid = wpa_s->current_ssid;
2565	wpa_supplicant_mark_disassoc(wpa_s);
2566
2567	if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2568		sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2569		wpa_s->current_ssid = last_ssid;
2570	}
2571
2572	if (fast_reconnect &&
2573	    !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2574	    !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2575	    !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2576			     fast_reconnect->ssid_len) &&
2577	    !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
2578	    !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) {
2579#ifndef CONFIG_NO_SCAN_PROCESSING
2580		wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2581		if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2582					   fast_reconnect_ssid) < 0) {
2583			/* Recover through full scan */
2584			wpa_supplicant_req_scan(wpa_s, 0, 100000);
2585		}
2586#endif /* CONFIG_NO_SCAN_PROCESSING */
2587	} else if (fast_reconnect) {
2588		/*
2589		 * Could not reconnect to the same BSS due to network being
2590		 * disabled. Use a new scan to match the alternative behavior
2591		 * above, i.e., to continue automatic reconnection attempt in a
2592		 * way that enforces disabled network rules.
2593		 */
2594		wpa_supplicant_req_scan(wpa_s, 0, 100000);
2595	}
2596}
2597
2598
2599#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2600void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
2601{
2602	struct wpa_supplicant *wpa_s = eloop_ctx;
2603
2604	if (!wpa_s->pending_mic_error_report)
2605		return;
2606
2607	wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2608	wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2609	wpa_s->pending_mic_error_report = 0;
2610}
2611#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2612
2613
2614static void
2615wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2616					 union wpa_event_data *data)
2617{
2618	int pairwise;
2619	struct os_reltime t;
2620
2621	wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2622	pairwise = (data && data->michael_mic_failure.unicast);
2623	os_get_reltime(&t);
2624	if ((wpa_s->last_michael_mic_error.sec &&
2625	     !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
2626	    wpa_s->pending_mic_error_report) {
2627		if (wpa_s->pending_mic_error_report) {
2628			/*
2629			 * Send the pending MIC error report immediately since
2630			 * we are going to start countermeasures and AP better
2631			 * do the same.
2632			 */
2633			wpa_sm_key_request(wpa_s->wpa, 1,
2634					   wpa_s->pending_mic_error_pairwise);
2635		}
2636
2637		/* Send the new MIC error report immediately since we are going
2638		 * to start countermeasures and AP better do the same.
2639		 */
2640		wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2641
2642		/* initialize countermeasures */
2643		wpa_s->countermeasures = 1;
2644
2645		wpa_blacklist_add(wpa_s, wpa_s->bssid);
2646
2647		wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2648
2649		/*
2650		 * Need to wait for completion of request frame. We do not get
2651		 * any callback for the message completion, so just wait a
2652		 * short while and hope for the best. */
2653		os_sleep(0, 10000);
2654
2655		wpa_drv_set_countermeasures(wpa_s, 1);
2656		wpa_supplicant_deauthenticate(wpa_s,
2657					      WLAN_REASON_MICHAEL_MIC_FAILURE);
2658		eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2659				     wpa_s, NULL);
2660		eloop_register_timeout(60, 0,
2661				       wpa_supplicant_stop_countermeasures,
2662				       wpa_s, NULL);
2663		/* TODO: mark the AP rejected for 60 second. STA is
2664		 * allowed to associate with another AP.. */
2665	} else {
2666#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2667		if (wpa_s->mic_errors_seen) {
2668			/*
2669			 * Reduce the effectiveness of Michael MIC error
2670			 * reports as a means for attacking against TKIP if
2671			 * more than one MIC failure is noticed with the same
2672			 * PTK. We delay the transmission of the reports by a
2673			 * random time between 0 and 60 seconds in order to
2674			 * force the attacker wait 60 seconds before getting
2675			 * the information on whether a frame resulted in a MIC
2676			 * failure.
2677			 */
2678			u8 rval[4];
2679			int sec;
2680
2681			if (os_get_random(rval, sizeof(rval)) < 0)
2682				sec = os_random() % 60;
2683			else
2684				sec = WPA_GET_BE32(rval) % 60;
2685			wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2686				"report %d seconds", sec);
2687			wpa_s->pending_mic_error_report = 1;
2688			wpa_s->pending_mic_error_pairwise = pairwise;
2689			eloop_cancel_timeout(
2690				wpa_supplicant_delayed_mic_error_report,
2691				wpa_s, NULL);
2692			eloop_register_timeout(
2693				sec, os_random() % 1000000,
2694				wpa_supplicant_delayed_mic_error_report,
2695				wpa_s, NULL);
2696		} else {
2697			wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2698		}
2699#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2700		wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2701#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2702	}
2703	wpa_s->last_michael_mic_error = t;
2704	wpa_s->mic_errors_seen++;
2705}
2706
2707
2708#ifdef CONFIG_TERMINATE_ONLASTIF
2709static int any_interfaces(struct wpa_supplicant *head)
2710{
2711	struct wpa_supplicant *wpa_s;
2712
2713	for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2714		if (!wpa_s->interface_removed)
2715			return 1;
2716	return 0;
2717}
2718#endif /* CONFIG_TERMINATE_ONLASTIF */
2719
2720
2721static void
2722wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2723				      union wpa_event_data *data)
2724{
2725	if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2726		return;
2727
2728	switch (data->interface_status.ievent) {
2729	case EVENT_INTERFACE_ADDED:
2730		if (!wpa_s->interface_removed)
2731			break;
2732		wpa_s->interface_removed = 0;
2733		wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2734		if (wpa_supplicant_driver_init(wpa_s) < 0) {
2735			wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2736				"driver after interface was added");
2737		}
2738
2739#ifdef CONFIG_P2P
2740		if (!wpa_s->global->p2p &&
2741		    !wpa_s->global->p2p_disabled &&
2742		    !wpa_s->conf->p2p_disabled &&
2743		    (wpa_s->drv_flags &
2744		     WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
2745		    wpas_p2p_add_p2pdev_interface(
2746			    wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
2747			wpa_printf(MSG_INFO,
2748				   "P2P: Failed to enable P2P Device interface");
2749			/* Try to continue without. P2P will be disabled. */
2750		}
2751#endif /* CONFIG_P2P */
2752
2753		break;
2754	case EVENT_INTERFACE_REMOVED:
2755		wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2756		wpa_s->interface_removed = 1;
2757		wpa_supplicant_mark_disassoc(wpa_s);
2758		wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2759		l2_packet_deinit(wpa_s->l2);
2760		wpa_s->l2 = NULL;
2761
2762#ifdef CONFIG_P2P
2763		if (wpa_s->global->p2p &&
2764		    wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
2765		    (wpa_s->drv_flags &
2766		     WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
2767			wpa_dbg(wpa_s, MSG_DEBUG,
2768				"Removing P2P Device interface");
2769			wpa_supplicant_remove_iface(
2770				wpa_s->global, wpa_s->global->p2p_init_wpa_s,
2771				0);
2772			wpa_s->global->p2p_init_wpa_s = NULL;
2773		}
2774#endif /* CONFIG_P2P */
2775
2776#ifdef CONFIG_MATCH_IFACE
2777		if (wpa_s->matched) {
2778			wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
2779			break;
2780		}
2781#endif /* CONFIG_MATCH_IFACE */
2782
2783#ifdef CONFIG_TERMINATE_ONLASTIF
2784		/* check if last interface */
2785		if (!any_interfaces(wpa_s->global->ifaces))
2786			eloop_terminate();
2787#endif /* CONFIG_TERMINATE_ONLASTIF */
2788		break;
2789	}
2790}
2791
2792
2793#ifdef CONFIG_PEERKEY
2794static void
2795wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2796			      union wpa_event_data *data)
2797{
2798	if (data == NULL)
2799		return;
2800	wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2801}
2802#endif /* CONFIG_PEERKEY */
2803
2804
2805#ifdef CONFIG_TDLS
2806static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2807				      union wpa_event_data *data)
2808{
2809	if (data == NULL)
2810		return;
2811	switch (data->tdls.oper) {
2812	case TDLS_REQUEST_SETUP:
2813		wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2814		if (wpa_tdls_is_external_setup(wpa_s->wpa))
2815			wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2816		else
2817			wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2818		break;
2819	case TDLS_REQUEST_TEARDOWN:
2820		if (wpa_tdls_is_external_setup(wpa_s->wpa))
2821			wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2822					       data->tdls.reason_code);
2823		else
2824			wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2825					  data->tdls.peer);
2826		break;
2827	case TDLS_REQUEST_DISCOVER:
2828			wpa_tdls_send_discovery_request(wpa_s->wpa,
2829							data->tdls.peer);
2830		break;
2831	}
2832}
2833#endif /* CONFIG_TDLS */
2834
2835
2836#ifdef CONFIG_WNM
2837static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2838				     union wpa_event_data *data)
2839{
2840	if (data == NULL)
2841		return;
2842	switch (data->wnm.oper) {
2843	case WNM_OPER_SLEEP:
2844		wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2845			   "(action=%d, intval=%d)",
2846			   data->wnm.sleep_action, data->wnm.sleep_intval);
2847		ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2848					     data->wnm.sleep_intval, NULL);
2849		break;
2850	}
2851}
2852#endif /* CONFIG_WNM */
2853
2854
2855#ifdef CONFIG_IEEE80211R
2856static void
2857wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2858				 union wpa_event_data *data)
2859{
2860	if (data == NULL)
2861		return;
2862
2863	if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2864				    data->ft_ies.ies_len,
2865				    data->ft_ies.ft_action,
2866				    data->ft_ies.target_ap,
2867				    data->ft_ies.ric_ies,
2868				    data->ft_ies.ric_ies_len) < 0) {
2869		/* TODO: prevent MLME/driver from trying to associate? */
2870	}
2871}
2872#endif /* CONFIG_IEEE80211R */
2873
2874
2875#ifdef CONFIG_IBSS_RSN
2876static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2877						union wpa_event_data *data)
2878{
2879	struct wpa_ssid *ssid;
2880	if (wpa_s->wpa_state < WPA_ASSOCIATED)
2881		return;
2882	if (data == NULL)
2883		return;
2884	ssid = wpa_s->current_ssid;
2885	if (ssid == NULL)
2886		return;
2887	if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2888		return;
2889
2890	ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2891}
2892
2893
2894static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2895					   union wpa_event_data *data)
2896{
2897	struct wpa_ssid *ssid = wpa_s->current_ssid;
2898
2899	if (ssid == NULL)
2900		return;
2901
2902	/* check if the ssid is correctly configured as IBSS/RSN */
2903	if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2904		return;
2905
2906	ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2907			     data->rx_mgmt.frame_len);
2908}
2909#endif /* CONFIG_IBSS_RSN */
2910
2911
2912#ifdef CONFIG_IEEE80211R
2913static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2914			 size_t len)
2915{
2916	const u8 *sta_addr, *target_ap_addr;
2917	u16 status;
2918
2919	wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2920	if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2921		return; /* only SME case supported for now */
2922	if (len < 1 + 2 * ETH_ALEN + 2)
2923		return;
2924	if (data[0] != 2)
2925		return; /* Only FT Action Response is supported for now */
2926	sta_addr = data + 1;
2927	target_ap_addr = data + 1 + ETH_ALEN;
2928	status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2929	wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2930		MACSTR " TargetAP " MACSTR " status %u",
2931		MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2932
2933	if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2934		wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2935			" in FT Action Response", MAC2STR(sta_addr));
2936		return;
2937	}
2938
2939	if (status) {
2940		wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2941			"failure (status code %d)", status);
2942		/* TODO: report error to FT code(?) */
2943		return;
2944	}
2945
2946	if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2947				    len - (1 + 2 * ETH_ALEN + 2), 1,
2948				    target_ap_addr, NULL, 0) < 0)
2949		return;
2950
2951#ifdef CONFIG_SME
2952	{
2953		struct wpa_bss *bss;
2954		bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2955		if (bss)
2956			wpa_s->sme.freq = bss->freq;
2957		wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2958		sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2959			      WLAN_AUTH_FT);
2960	}
2961#endif /* CONFIG_SME */
2962}
2963#endif /* CONFIG_IEEE80211R */
2964
2965
2966static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2967					       struct unprot_deauth *e)
2968{
2969#ifdef CONFIG_IEEE80211W
2970	wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2971		   "dropped: " MACSTR " -> " MACSTR
2972		   " (reason code %u)",
2973		   MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2974	sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2975#endif /* CONFIG_IEEE80211W */
2976}
2977
2978
2979static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2980						 struct unprot_disassoc *e)
2981{
2982#ifdef CONFIG_IEEE80211W
2983	wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2984		   "dropped: " MACSTR " -> " MACSTR
2985		   " (reason code %u)",
2986		   MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2987	sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2988#endif /* CONFIG_IEEE80211W */
2989}
2990
2991
2992static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
2993				  u16 reason_code, int locally_generated,
2994				  const u8 *ie, size_t ie_len, int deauth)
2995{
2996#ifdef CONFIG_AP
2997	if (wpa_s->ap_iface && addr) {
2998		hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
2999		return;
3000	}
3001
3002	if (wpa_s->ap_iface) {
3003		wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
3004		return;
3005	}
3006#endif /* CONFIG_AP */
3007
3008	if (!locally_generated)
3009		wpa_s->own_disconnect_req = 0;
3010
3011	wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
3012
3013	if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
3014	      ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3015		(wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
3016	       eapol_sm_failed(wpa_s->eapol))) &&
3017	     !wpa_s->eap_expected_failure))
3018		wpas_auth_failed(wpa_s, "AUTH_FAILED");
3019
3020#ifdef CONFIG_P2P
3021	if (deauth && reason_code > 0) {
3022		if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
3023					  locally_generated) > 0) {
3024			/*
3025			 * The interface was removed, so cannot continue
3026			 * processing any additional operations after this.
3027			 */
3028			return;
3029		}
3030	}
3031#endif /* CONFIG_P2P */
3032
3033	wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
3034					     locally_generated);
3035}
3036
3037
3038static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
3039				struct disassoc_info *info)
3040{
3041	u16 reason_code = 0;
3042	int locally_generated = 0;
3043	const u8 *addr = NULL;
3044	const u8 *ie = NULL;
3045	size_t ie_len = 0;
3046
3047	wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
3048
3049	if (info) {
3050		addr = info->addr;
3051		ie = info->ie;
3052		ie_len = info->ie_len;
3053		reason_code = info->reason_code;
3054		locally_generated = info->locally_generated;
3055		wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
3056			locally_generated ? " (locally generated)" : "");
3057		if (addr)
3058			wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3059				MAC2STR(addr));
3060		wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
3061			    ie, ie_len);
3062	}
3063
3064#ifdef CONFIG_AP
3065	if (wpa_s->ap_iface && info && info->addr) {
3066		hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
3067		return;
3068	}
3069
3070	if (wpa_s->ap_iface) {
3071		wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
3072		return;
3073	}
3074#endif /* CONFIG_AP */
3075
3076#ifdef CONFIG_P2P
3077	if (info) {
3078		wpas_p2p_disassoc_notif(
3079			wpa_s, info->addr, reason_code, info->ie, info->ie_len,
3080			locally_generated);
3081	}
3082#endif /* CONFIG_P2P */
3083
3084	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3085		sme_event_disassoc(wpa_s, info);
3086
3087	wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
3088			      ie, ie_len, 0);
3089}
3090
3091
3092static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
3093			      struct deauth_info *info)
3094{
3095	u16 reason_code = 0;
3096	int locally_generated = 0;
3097	const u8 *addr = NULL;
3098	const u8 *ie = NULL;
3099	size_t ie_len = 0;
3100
3101	wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
3102
3103	if (info) {
3104		addr = info->addr;
3105		ie = info->ie;
3106		ie_len = info->ie_len;
3107		reason_code = info->reason_code;
3108		locally_generated = info->locally_generated;
3109		wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
3110			reason_code,
3111			locally_generated ? " (locally generated)" : "");
3112		if (addr) {
3113			wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3114				MAC2STR(addr));
3115		}
3116		wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
3117			    ie, ie_len);
3118	}
3119
3120	wpa_reset_ft_completed(wpa_s->wpa);
3121
3122	wpas_event_disconnect(wpa_s, addr, reason_code,
3123			      locally_generated, ie, ie_len, 1);
3124}
3125
3126
3127static const char * reg_init_str(enum reg_change_initiator init)
3128{
3129	switch (init) {
3130	case REGDOM_SET_BY_CORE:
3131		return "CORE";
3132	case REGDOM_SET_BY_USER:
3133		return "USER";
3134	case REGDOM_SET_BY_DRIVER:
3135		return "DRIVER";
3136	case REGDOM_SET_BY_COUNTRY_IE:
3137		return "COUNTRY_IE";
3138	case REGDOM_BEACON_HINT:
3139		return "BEACON_HINT";
3140	}
3141	return "?";
3142}
3143
3144
3145static const char * reg_type_str(enum reg_type type)
3146{
3147	switch (type) {
3148	case REGDOM_TYPE_UNKNOWN:
3149		return "UNKNOWN";
3150	case REGDOM_TYPE_COUNTRY:
3151		return "COUNTRY";
3152	case REGDOM_TYPE_WORLD:
3153		return "WORLD";
3154	case REGDOM_TYPE_CUSTOM_WORLD:
3155		return "CUSTOM_WORLD";
3156	case REGDOM_TYPE_INTERSECTION:
3157		return "INTERSECTION";
3158	}
3159	return "?";
3160}
3161
3162
3163static void wpa_supplicant_update_channel_list(
3164	struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
3165{
3166	struct wpa_supplicant *ifs;
3167
3168	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
3169		reg_init_str(info->initiator), reg_type_str(info->type),
3170		info->alpha2[0] ? " alpha2=" : "",
3171		info->alpha2[0] ? info->alpha2 : "");
3172
3173	if (wpa_s->drv_priv == NULL)
3174		return; /* Ignore event during drv initialization */
3175
3176	dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
3177			 radio_list) {
3178		wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
3179			   ifs->ifname);
3180		free_hw_features(ifs);
3181		ifs->hw.modes = wpa_drv_get_hw_feature_data(
3182			ifs, &ifs->hw.num_modes, &ifs->hw.flags);
3183	}
3184
3185	/* Restart sched_scan with updated channel list */
3186	if (wpa_s->sched_scanning) {
3187		wpa_dbg(wpa_s, MSG_DEBUG,
3188			"Channel list changed restart sched scan.");
3189		wpa_supplicant_cancel_sched_scan(wpa_s);
3190		wpa_supplicant_req_scan(wpa_s, 0, 0);
3191	}
3192
3193	wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
3194}
3195
3196
3197static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
3198				      const u8 *frame, size_t len, int freq,
3199				      int rssi)
3200{
3201	const struct ieee80211_mgmt *mgmt;
3202	const u8 *payload;
3203	size_t plen;
3204	u8 category;
3205
3206	if (len < IEEE80211_HDRLEN + 2)
3207		return;
3208
3209	mgmt = (const struct ieee80211_mgmt *) frame;
3210	payload = frame + IEEE80211_HDRLEN;
3211	category = *payload++;
3212	plen = len - IEEE80211_HDRLEN - 1;
3213
3214	wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
3215		" Category=%u DataLen=%d freq=%d MHz",
3216		MAC2STR(mgmt->sa), category, (int) plen, freq);
3217
3218	if (category == WLAN_ACTION_WMM) {
3219		wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
3220		return;
3221	}
3222
3223#ifdef CONFIG_IEEE80211R
3224	if (category == WLAN_ACTION_FT) {
3225		ft_rx_action(wpa_s, payload, plen);
3226		return;
3227	}
3228#endif /* CONFIG_IEEE80211R */
3229
3230#ifdef CONFIG_IEEE80211W
3231#ifdef CONFIG_SME
3232	if (category == WLAN_ACTION_SA_QUERY) {
3233		sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
3234		return;
3235	}
3236#endif /* CONFIG_SME */
3237#endif /* CONFIG_IEEE80211W */
3238
3239#ifdef CONFIG_WNM
3240	if (mgmt->u.action.category == WLAN_ACTION_WNM) {
3241		ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
3242		return;
3243	}
3244#endif /* CONFIG_WNM */
3245
3246#ifdef CONFIG_GAS
3247	if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
3248	     mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
3249	    gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
3250			 mgmt->u.action.category,
3251			 payload, plen, freq) == 0)
3252		return;
3253#endif /* CONFIG_GAS */
3254
3255#ifdef CONFIG_TDLS
3256	if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
3257	    payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
3258		wpa_dbg(wpa_s, MSG_DEBUG,
3259			"TDLS: Received Discovery Response from " MACSTR,
3260			MAC2STR(mgmt->sa));
3261		return;
3262	}
3263#endif /* CONFIG_TDLS */
3264
3265#ifdef CONFIG_INTERWORKING
3266	if (category == WLAN_ACTION_QOS && plen >= 1 &&
3267	    payload[0] == QOS_QOS_MAP_CONFIG) {
3268		const u8 *pos = payload + 1;
3269		size_t qlen = plen - 1;
3270		wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
3271			MACSTR, MAC2STR(mgmt->sa));
3272		if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
3273		    qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
3274		    pos[1] <= qlen - 2 && pos[1] >= 16)
3275			wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
3276		return;
3277	}
3278#endif /* CONFIG_INTERWORKING */
3279
3280	if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3281	    payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
3282		wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
3283		return;
3284	}
3285
3286	if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3287	    payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
3288		wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
3289							 payload + 1, plen - 1,
3290							 rssi);
3291		return;
3292	}
3293
3294#ifdef CONFIG_FST
3295	if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
3296		fst_rx_action(wpa_s->fst, mgmt, len);
3297		return;
3298	}
3299#endif /* CONFIG_FST */
3300
3301	wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
3302			   category, payload, plen, freq);
3303	if (wpa_s->ifmsh)
3304		mesh_mpm_action_rx(wpa_s, mgmt, len);
3305}
3306
3307
3308static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
3309					     union wpa_event_data *event)
3310{
3311	struct wpa_freq_range_list *list;
3312	char *str = NULL;
3313
3314	list = &event->freq_range;
3315
3316	if (list->num)
3317		str = freq_range_list_str(list);
3318	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
3319		str ? str : "");
3320
3321#ifdef CONFIG_P2P
3322	if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
3323		wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
3324			__func__);
3325	} else {
3326		wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
3327
3328		/*
3329		 * The update channel flow will also take care of moving a GO
3330		 * from the unsafe frequency if needed.
3331		 */
3332		wpas_p2p_update_channel_list(wpa_s,
3333					     WPAS_P2P_CHANNEL_UPDATE_AVOID);
3334	}
3335#endif /* CONFIG_P2P */
3336
3337	os_free(str);
3338}
3339
3340
3341static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
3342					    union wpa_event_data *data)
3343{
3344	wpa_dbg(wpa_s, MSG_DEBUG,
3345		"Connection authorized by device, previous state %d",
3346		wpa_s->wpa_state);
3347	if (wpa_s->wpa_state == WPA_ASSOCIATED) {
3348		wpa_supplicant_cancel_auth_timeout(wpa_s);
3349		wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3350		eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3351		eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
3352	}
3353	wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
3354	wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
3355			       data->assoc_info.ptk_kck_len,
3356			       data->assoc_info.ptk_kek,
3357			       data->assoc_info.ptk_kek_len);
3358}
3359
3360
3361void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
3362			  union wpa_event_data *data)
3363{
3364	struct wpa_supplicant *wpa_s = ctx;
3365	int resched;
3366
3367	if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
3368	    event != EVENT_INTERFACE_ENABLED &&
3369	    event != EVENT_INTERFACE_STATUS &&
3370	    event != EVENT_SCAN_RESULTS &&
3371	    event != EVENT_SCHED_SCAN_STOPPED) {
3372		wpa_dbg(wpa_s, MSG_DEBUG,
3373			"Ignore event %s (%d) while interface is disabled",
3374			event_to_string(event), event);
3375		return;
3376	}
3377
3378#ifndef CONFIG_NO_STDOUT_DEBUG
3379{
3380	int level = MSG_DEBUG;
3381
3382	if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
3383		const struct ieee80211_hdr *hdr;
3384		u16 fc;
3385		hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
3386		fc = le_to_host16(hdr->frame_control);
3387		if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3388		    WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
3389			level = MSG_EXCESSIVE;
3390	}
3391
3392	wpa_dbg(wpa_s, level, "Event %s (%d) received",
3393		event_to_string(event), event);
3394}
3395#endif /* CONFIG_NO_STDOUT_DEBUG */
3396
3397	switch (event) {
3398	case EVENT_AUTH:
3399#ifdef CONFIG_FST
3400		if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
3401					  data->auth.ies_len))
3402			wpa_printf(MSG_DEBUG,
3403				   "FST: MB IEs updated from auth IE");
3404#endif /* CONFIG_FST */
3405		sme_event_auth(wpa_s, data);
3406		break;
3407	case EVENT_ASSOC:
3408		wpa_supplicant_event_assoc(wpa_s, data);
3409		if (data && data->assoc_info.authorized)
3410			wpa_supplicant_event_assoc_auth(wpa_s, data);
3411		if (data) {
3412			wpa_msg(wpa_s, MSG_INFO,
3413				WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
3414				data->assoc_info.subnet_status);
3415		}
3416		break;
3417	case EVENT_DISASSOC:
3418		wpas_event_disassoc(wpa_s,
3419				    data ? &data->disassoc_info : NULL);
3420		break;
3421	case EVENT_DEAUTH:
3422		wpas_event_deauth(wpa_s,
3423				  data ? &data->deauth_info : NULL);
3424		break;
3425	case EVENT_MICHAEL_MIC_FAILURE:
3426		wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3427		break;
3428#ifndef CONFIG_NO_SCAN_PROCESSING
3429	case EVENT_SCAN_STARTED:
3430		if (wpa_s->own_scan_requested ||
3431		    (data && !data->scan_info.external_scan)) {
3432			struct os_reltime diff;
3433
3434			os_get_reltime(&wpa_s->scan_start_time);
3435			os_reltime_sub(&wpa_s->scan_start_time,
3436				       &wpa_s->scan_trigger_time, &diff);
3437			wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3438				diff.sec, diff.usec);
3439			wpa_s->own_scan_requested = 0;
3440			wpa_s->own_scan_running = 1;
3441			if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3442			    wpa_s->manual_scan_use_id) {
3443				wpa_msg_ctrl(wpa_s, MSG_INFO,
3444					     WPA_EVENT_SCAN_STARTED "id=%u",
3445					     wpa_s->manual_scan_id);
3446			} else {
3447				wpa_msg_ctrl(wpa_s, MSG_INFO,
3448					     WPA_EVENT_SCAN_STARTED);
3449			}
3450		} else {
3451			wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3452			wpa_s->radio->external_scan_running = 1;
3453			wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
3454		}
3455		break;
3456	case EVENT_SCAN_RESULTS:
3457		if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3458			wpa_s->scan_res_handler = NULL;
3459			wpa_s->own_scan_running = 0;
3460			wpa_s->radio->external_scan_running = 0;
3461			wpa_s->last_scan_req = NORMAL_SCAN_REQ;
3462			break;
3463		}
3464
3465		if (!(data && data->scan_info.external_scan) &&
3466		    os_reltime_initialized(&wpa_s->scan_start_time)) {
3467			struct os_reltime now, diff;
3468			os_get_reltime(&now);
3469			os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3470			wpa_s->scan_start_time.sec = 0;
3471			wpa_s->scan_start_time.usec = 0;
3472			wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3473				diff.sec, diff.usec);
3474		}
3475		if (wpa_supplicant_event_scan_results(wpa_s, data))
3476			break; /* interface may have been removed */
3477		if (!(data && data->scan_info.external_scan))
3478			wpa_s->own_scan_running = 0;
3479		if (data && data->scan_info.nl_scan_event)
3480			wpa_s->radio->external_scan_running = 0;
3481		radio_work_check_next(wpa_s);
3482		break;
3483#endif /* CONFIG_NO_SCAN_PROCESSING */
3484	case EVENT_ASSOCINFO:
3485		wpa_supplicant_event_associnfo(wpa_s, data);
3486		break;
3487	case EVENT_INTERFACE_STATUS:
3488		wpa_supplicant_event_interface_status(wpa_s, data);
3489		break;
3490	case EVENT_PMKID_CANDIDATE:
3491		wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3492		break;
3493#ifdef CONFIG_PEERKEY
3494	case EVENT_STKSTART:
3495		wpa_supplicant_event_stkstart(wpa_s, data);
3496		break;
3497#endif /* CONFIG_PEERKEY */
3498#ifdef CONFIG_TDLS
3499	case EVENT_TDLS:
3500		wpa_supplicant_event_tdls(wpa_s, data);
3501		break;
3502#endif /* CONFIG_TDLS */
3503#ifdef CONFIG_WNM
3504	case EVENT_WNM:
3505		wpa_supplicant_event_wnm(wpa_s, data);
3506		break;
3507#endif /* CONFIG_WNM */
3508#ifdef CONFIG_IEEE80211R
3509	case EVENT_FT_RESPONSE:
3510		wpa_supplicant_event_ft_response(wpa_s, data);
3511		break;
3512#endif /* CONFIG_IEEE80211R */
3513#ifdef CONFIG_IBSS_RSN
3514	case EVENT_IBSS_RSN_START:
3515		wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3516		break;
3517#endif /* CONFIG_IBSS_RSN */
3518	case EVENT_ASSOC_REJECT:
3519		if (data->assoc_reject.bssid)
3520			wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3521				"bssid=" MACSTR	" status_code=%u",
3522				MAC2STR(data->assoc_reject.bssid),
3523				data->assoc_reject.status_code);
3524		else
3525			wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3526				"status_code=%u",
3527				data->assoc_reject.status_code);
3528		wpa_s->assoc_status_code = data->assoc_reject.status_code;
3529		wpas_notify_assoc_status_code(wpa_s);
3530		if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3531			sme_event_assoc_reject(wpa_s, data);
3532		else {
3533			const u8 *bssid = data->assoc_reject.bssid;
3534			if (bssid == NULL || is_zero_ether_addr(bssid))
3535				bssid = wpa_s->pending_bssid;
3536			wpas_connection_failed(wpa_s, bssid);
3537			wpa_supplicant_mark_disassoc(wpa_s);
3538		}
3539		break;
3540	case EVENT_AUTH_TIMED_OUT:
3541		/* It is possible to get this event from earlier connection */
3542		if (wpa_s->current_ssid &&
3543		    wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3544			wpa_dbg(wpa_s, MSG_DEBUG,
3545				"Ignore AUTH_TIMED_OUT in mesh configuration");
3546			break;
3547		}
3548		if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3549			sme_event_auth_timed_out(wpa_s, data);
3550		break;
3551	case EVENT_ASSOC_TIMED_OUT:
3552		/* It is possible to get this event from earlier connection */
3553		if (wpa_s->current_ssid &&
3554		    wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3555			wpa_dbg(wpa_s, MSG_DEBUG,
3556				"Ignore ASSOC_TIMED_OUT in mesh configuration");
3557			break;
3558		}
3559		if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3560			sme_event_assoc_timed_out(wpa_s, data);
3561		break;
3562	case EVENT_TX_STATUS:
3563		wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3564			" type=%d stype=%d",
3565			MAC2STR(data->tx_status.dst),
3566			data->tx_status.type, data->tx_status.stype);
3567#ifdef CONFIG_AP
3568		if (wpa_s->ap_iface == NULL) {
3569#ifdef CONFIG_OFFCHANNEL
3570			if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3571			    data->tx_status.stype == WLAN_FC_STYPE_ACTION)
3572				offchannel_send_action_tx_status(
3573					wpa_s, data->tx_status.dst,
3574					data->tx_status.data,
3575					data->tx_status.data_len,
3576					data->tx_status.ack ?
3577					OFFCHANNEL_SEND_ACTION_SUCCESS :
3578					OFFCHANNEL_SEND_ACTION_NO_ACK);
3579#endif /* CONFIG_OFFCHANNEL */
3580			break;
3581		}
3582#endif /* CONFIG_AP */
3583#ifdef CONFIG_OFFCHANNEL
3584		wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3585			MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
3586		/*
3587		 * Catch TX status events for Action frames we sent via group
3588		 * interface in GO mode.
3589		 */
3590		if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3591		    data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3592		    os_memcmp(wpa_s->parent->pending_action_dst,
3593			      data->tx_status.dst, ETH_ALEN) == 0) {
3594			offchannel_send_action_tx_status(
3595				wpa_s->parent, data->tx_status.dst,
3596				data->tx_status.data,
3597				data->tx_status.data_len,
3598				data->tx_status.ack ?
3599				OFFCHANNEL_SEND_ACTION_SUCCESS :
3600				OFFCHANNEL_SEND_ACTION_NO_ACK);
3601			break;
3602		}
3603#endif /* CONFIG_OFFCHANNEL */
3604#ifdef CONFIG_AP
3605		switch (data->tx_status.type) {
3606		case WLAN_FC_TYPE_MGMT:
3607			ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3608				      data->tx_status.data_len,
3609				      data->tx_status.stype,
3610				      data->tx_status.ack);
3611			break;
3612		case WLAN_FC_TYPE_DATA:
3613			ap_tx_status(wpa_s, data->tx_status.dst,
3614				     data->tx_status.data,
3615				     data->tx_status.data_len,
3616				     data->tx_status.ack);
3617			break;
3618		}
3619#endif /* CONFIG_AP */
3620		break;
3621#ifdef CONFIG_AP
3622	case EVENT_EAPOL_TX_STATUS:
3623		ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3624				   data->eapol_tx_status.data,
3625				   data->eapol_tx_status.data_len,
3626				   data->eapol_tx_status.ack);
3627		break;
3628	case EVENT_DRIVER_CLIENT_POLL_OK:
3629		ap_client_poll_ok(wpa_s, data->client_poll.addr);
3630		break;
3631	case EVENT_RX_FROM_UNKNOWN:
3632		if (wpa_s->ap_iface == NULL)
3633			break;
3634		ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3635				       data->rx_from_unknown.wds);
3636		break;
3637	case EVENT_CH_SWITCH:
3638		if (!data || !wpa_s->current_ssid)
3639			break;
3640
3641		wpa_s->assoc_freq = data->ch_switch.freq;
3642		wpa_s->current_ssid->frequency = data->ch_switch.freq;
3643
3644		if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
3645		    wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
3646		    wpa_s->current_ssid->mode ==
3647		    WPAS_MODE_P2P_GROUP_FORMATION) {
3648			wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3649					  data->ch_switch.ht_enabled,
3650					  data->ch_switch.ch_offset,
3651					  data->ch_switch.ch_width,
3652					  data->ch_switch.cf1,
3653					  data->ch_switch.cf2);
3654		}
3655
3656		wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
3657		break;
3658#ifdef NEED_AP_MLME
3659	case EVENT_DFS_RADAR_DETECTED:
3660		if (data)
3661			wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event);
3662		break;
3663	case EVENT_DFS_CAC_STARTED:
3664		if (data)
3665			wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
3666		break;
3667	case EVENT_DFS_CAC_FINISHED:
3668		if (data)
3669			wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
3670		break;
3671	case EVENT_DFS_CAC_ABORTED:
3672		if (data)
3673			wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
3674		break;
3675	case EVENT_DFS_NOP_FINISHED:
3676		if (data)
3677			wpas_event_dfs_cac_nop_finished(wpa_s,
3678							&data->dfs_event);
3679		break;
3680#endif /* NEED_AP_MLME */
3681#endif /* CONFIG_AP */
3682	case EVENT_RX_MGMT: {
3683		u16 fc, stype;
3684		const struct ieee80211_mgmt *mgmt;
3685
3686#ifdef CONFIG_TESTING_OPTIONS
3687		if (wpa_s->ext_mgmt_frame_handling) {
3688			struct rx_mgmt *rx = &data->rx_mgmt;
3689			size_t hex_len = 2 * rx->frame_len + 1;
3690			char *hex = os_malloc(hex_len);
3691			if (hex) {
3692				wpa_snprintf_hex(hex, hex_len,
3693						 rx->frame, rx->frame_len);
3694				wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3695					rx->freq, rx->datarate, rx->ssi_signal,
3696					hex);
3697				os_free(hex);
3698			}
3699			break;
3700		}
3701#endif /* CONFIG_TESTING_OPTIONS */
3702
3703		mgmt = (const struct ieee80211_mgmt *)
3704			data->rx_mgmt.frame;
3705		fc = le_to_host16(mgmt->frame_control);
3706		stype = WLAN_FC_GET_STYPE(fc);
3707
3708#ifdef CONFIG_AP
3709		if (wpa_s->ap_iface == NULL) {
3710#endif /* CONFIG_AP */
3711#ifdef CONFIG_P2P
3712			if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3713			    data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
3714				const u8 *src = mgmt->sa;
3715				const u8 *ie;
3716				size_t ie_len;
3717
3718				ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
3719				ie_len = data->rx_mgmt.frame_len -
3720					IEEE80211_HDRLEN;
3721				wpas_p2p_probe_req_rx(
3722					wpa_s, src, mgmt->da,
3723					mgmt->bssid, ie, ie_len,
3724					data->rx_mgmt.freq,
3725					data->rx_mgmt.ssi_signal);
3726				break;
3727			}
3728#endif /* CONFIG_P2P */
3729#ifdef CONFIG_IBSS_RSN
3730			if (wpa_s->current_ssid &&
3731			    wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3732			    stype == WLAN_FC_STYPE_AUTH &&
3733			    data->rx_mgmt.frame_len >= 30) {
3734				wpa_supplicant_event_ibss_auth(wpa_s, data);
3735				break;
3736			}
3737#endif /* CONFIG_IBSS_RSN */
3738
3739			if (stype == WLAN_FC_STYPE_ACTION) {
3740				wpas_event_rx_mgmt_action(
3741					wpa_s, data->rx_mgmt.frame,
3742					data->rx_mgmt.frame_len,
3743					data->rx_mgmt.freq,
3744					data->rx_mgmt.ssi_signal);
3745				break;
3746			}
3747
3748			if (wpa_s->ifmsh) {
3749				mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3750				break;
3751			}
3752
3753			wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3754				"management frame in non-AP mode");
3755			break;
3756#ifdef CONFIG_AP
3757		}
3758
3759		if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3760		    data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
3761			const u8 *ie;
3762			size_t ie_len;
3763
3764			ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
3765			ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
3766
3767			wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3768					 mgmt->bssid, ie, ie_len,
3769					 data->rx_mgmt.ssi_signal);
3770		}
3771
3772		ap_mgmt_rx(wpa_s, &data->rx_mgmt);
3773#endif /* CONFIG_AP */
3774		break;
3775		}
3776	case EVENT_RX_PROBE_REQ:
3777		if (data->rx_probe_req.sa == NULL ||
3778		    data->rx_probe_req.ie == NULL)
3779			break;
3780#ifdef CONFIG_AP
3781		if (wpa_s->ap_iface) {
3782			hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3783					     data->rx_probe_req.sa,
3784					     data->rx_probe_req.da,
3785					     data->rx_probe_req.bssid,
3786					     data->rx_probe_req.ie,
3787					     data->rx_probe_req.ie_len,
3788					     data->rx_probe_req.ssi_signal);
3789			break;
3790		}
3791#endif /* CONFIG_AP */
3792		wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
3793				      data->rx_probe_req.da,
3794				      data->rx_probe_req.bssid,
3795				      data->rx_probe_req.ie,
3796				      data->rx_probe_req.ie_len,
3797				      0,
3798				      data->rx_probe_req.ssi_signal);
3799		break;
3800	case EVENT_REMAIN_ON_CHANNEL:
3801#ifdef CONFIG_OFFCHANNEL
3802		offchannel_remain_on_channel_cb(
3803			wpa_s, data->remain_on_channel.freq,
3804			data->remain_on_channel.duration);
3805#endif /* CONFIG_OFFCHANNEL */
3806		wpas_p2p_remain_on_channel_cb(
3807			wpa_s, data->remain_on_channel.freq,
3808			data->remain_on_channel.duration);
3809		break;
3810	case EVENT_CANCEL_REMAIN_ON_CHANNEL:
3811#ifdef CONFIG_OFFCHANNEL
3812		offchannel_cancel_remain_on_channel_cb(
3813			wpa_s, data->remain_on_channel.freq);
3814#endif /* CONFIG_OFFCHANNEL */
3815		wpas_p2p_cancel_remain_on_channel_cb(
3816			wpa_s, data->remain_on_channel.freq);
3817		break;
3818	case EVENT_EAPOL_RX:
3819		wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3820					data->eapol_rx.data,
3821					data->eapol_rx.data_len);
3822		break;
3823	case EVENT_SIGNAL_CHANGE:
3824		wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3825			"above=%d signal=%d noise=%d txrate=%d",
3826			data->signal_change.above_threshold,
3827			data->signal_change.current_signal,
3828			data->signal_change.current_noise,
3829			data->signal_change.current_txrate);
3830		wpa_bss_update_level(wpa_s->current_bss,
3831				     data->signal_change.current_signal);
3832		bgscan_notify_signal_change(
3833			wpa_s, data->signal_change.above_threshold,
3834			data->signal_change.current_signal,
3835			data->signal_change.current_noise,
3836			data->signal_change.current_txrate);
3837		break;
3838	case EVENT_INTERFACE_ENABLED:
3839		wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
3840		if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3841			wpa_supplicant_update_mac_addr(wpa_s);
3842			if (wpa_s->p2p_mgmt) {
3843				wpa_supplicant_set_state(wpa_s,
3844							 WPA_DISCONNECTED);
3845				break;
3846			}
3847
3848#ifdef CONFIG_AP
3849			if (!wpa_s->ap_iface) {
3850				wpa_supplicant_set_state(wpa_s,
3851							 WPA_DISCONNECTED);
3852				wpa_s->scan_req = NORMAL_SCAN_REQ;
3853				wpa_supplicant_req_scan(wpa_s, 0, 0);
3854			} else
3855				wpa_supplicant_set_state(wpa_s,
3856							 WPA_COMPLETED);
3857#else /* CONFIG_AP */
3858			wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3859			wpa_supplicant_req_scan(wpa_s, 0, 0);
3860#endif /* CONFIG_AP */
3861		}
3862		break;
3863	case EVENT_INTERFACE_DISABLED:
3864		wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
3865#ifdef CONFIG_P2P
3866		if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3867		    (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3868		     wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
3869			/*
3870			 * Mark interface disabled if this happens to end up not
3871			 * being removed as a separate P2P group interface.
3872			 */
3873			wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3874			/*
3875			 * The interface was externally disabled. Remove
3876			 * it assuming an external entity will start a
3877			 * new session if needed.
3878			 */
3879			if (wpa_s->current_ssid &&
3880			    wpa_s->current_ssid->p2p_group)
3881				wpas_p2p_interface_unavailable(wpa_s);
3882			else
3883				wpas_p2p_disconnect(wpa_s);
3884			/*
3885			 * wpa_s instance may have been freed, so must not use
3886			 * it here anymore.
3887			 */
3888			break;
3889		}
3890		if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3891		    p2p_in_progress(wpa_s->global->p2p) > 1) {
3892			/* This radio work will be cancelled, so clear P2P
3893			 * state as well.
3894			 */
3895			p2p_stop_find(wpa_s->global->p2p);
3896		}
3897#endif /* CONFIG_P2P */
3898
3899		if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3900			/*
3901			 * Indicate disconnection to keep ctrl_iface events
3902			 * consistent.
3903			 */
3904			wpa_supplicant_event_disassoc(
3905				wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3906		}
3907		wpa_supplicant_mark_disassoc(wpa_s);
3908		radio_remove_works(wpa_s, NULL, 0);
3909
3910		wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3911		break;
3912	case EVENT_CHANNEL_LIST_CHANGED:
3913		wpa_supplicant_update_channel_list(
3914			wpa_s, &data->channel_list_changed);
3915		break;
3916	case EVENT_INTERFACE_UNAVAILABLE:
3917		wpas_p2p_interface_unavailable(wpa_s);
3918		break;
3919	case EVENT_BEST_CHANNEL:
3920		wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3921			"(%d %d %d)",
3922			data->best_chan.freq_24, data->best_chan.freq_5,
3923			data->best_chan.freq_overall);
3924		wpa_s->best_24_freq = data->best_chan.freq_24;
3925		wpa_s->best_5_freq = data->best_chan.freq_5;
3926		wpa_s->best_overall_freq = data->best_chan.freq_overall;
3927		wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3928					      data->best_chan.freq_5,
3929					      data->best_chan.freq_overall);
3930		break;
3931	case EVENT_UNPROT_DEAUTH:
3932		wpa_supplicant_event_unprot_deauth(wpa_s,
3933						   &data->unprot_deauth);
3934		break;
3935	case EVENT_UNPROT_DISASSOC:
3936		wpa_supplicant_event_unprot_disassoc(wpa_s,
3937						     &data->unprot_disassoc);
3938		break;
3939	case EVENT_STATION_LOW_ACK:
3940#ifdef CONFIG_AP
3941		if (wpa_s->ap_iface && data)
3942			hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3943						  data->low_ack.addr);
3944#endif /* CONFIG_AP */
3945#ifdef CONFIG_TDLS
3946		if (data)
3947			wpa_tdls_disable_unreachable_link(wpa_s->wpa,
3948							  data->low_ack.addr);
3949#endif /* CONFIG_TDLS */
3950		break;
3951	case EVENT_IBSS_PEER_LOST:
3952#ifdef CONFIG_IBSS_RSN
3953		ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
3954#endif /* CONFIG_IBSS_RSN */
3955		break;
3956	case EVENT_DRIVER_GTK_REKEY:
3957		if (os_memcmp(data->driver_gtk_rekey.bssid,
3958			      wpa_s->bssid, ETH_ALEN))
3959			break;
3960		if (!wpa_s->wpa)
3961			break;
3962		wpa_sm_update_replay_ctr(wpa_s->wpa,
3963					 data->driver_gtk_rekey.replay_ctr);
3964		break;
3965	case EVENT_SCHED_SCAN_STOPPED:
3966		wpa_s->sched_scanning = 0;
3967		resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
3968		wpa_supplicant_notify_scanning(wpa_s, 0);
3969
3970		if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
3971			break;
3972
3973		/*
3974		 * Start a new sched scan to continue searching for more SSIDs
3975		 * either if timed out or PNO schedule scan is pending.
3976		 */
3977		if (wpa_s->sched_scan_timed_out) {
3978			wpa_supplicant_req_sched_scan(wpa_s);
3979		} else if (wpa_s->pno_sched_pending) {
3980			wpa_s->pno_sched_pending = 0;
3981			wpas_start_pno(wpa_s);
3982		} else if (resched) {
3983			wpa_supplicant_req_scan(wpa_s, 0, 0);
3984		}
3985
3986		break;
3987	case EVENT_WPS_BUTTON_PUSHED:
3988#ifdef CONFIG_WPS
3989		wpas_wps_start_pbc(wpa_s, NULL, 0);
3990#endif /* CONFIG_WPS */
3991		break;
3992	case EVENT_AVOID_FREQUENCIES:
3993		wpa_supplicant_notify_avoid_freq(wpa_s, data);
3994		break;
3995	case EVENT_CONNECT_FAILED_REASON:
3996#ifdef CONFIG_AP
3997		if (!wpa_s->ap_iface || !data)
3998			break;
3999		hostapd_event_connect_failed_reason(
4000			wpa_s->ap_iface->bss[0],
4001			data->connect_failed_reason.addr,
4002			data->connect_failed_reason.code);
4003#endif /* CONFIG_AP */
4004		break;
4005	case EVENT_NEW_PEER_CANDIDATE:
4006#ifdef CONFIG_MESH
4007		if (!wpa_s->ifmsh || !data)
4008			break;
4009		wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
4010				     data->mesh_peer.ies,
4011				     data->mesh_peer.ie_len);
4012#endif /* CONFIG_MESH */
4013		break;
4014	case EVENT_SURVEY:
4015#ifdef CONFIG_AP
4016		if (!wpa_s->ap_iface)
4017			break;
4018		hostapd_event_get_survey(wpa_s->ap_iface,
4019					 &data->survey_results);
4020#endif /* CONFIG_AP */
4021		break;
4022	case EVENT_ACS_CHANNEL_SELECTED:
4023#ifdef CONFIG_ACS
4024		if (!wpa_s->ap_iface)
4025			break;
4026		hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
4027					     &data->acs_selected_channels);
4028#endif /* CONFIG_ACS */
4029		break;
4030	default:
4031		wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
4032		break;
4033	}
4034}
4035
4036
4037void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
4038				 union wpa_event_data *data)
4039{
4040	struct wpa_supplicant *wpa_s;
4041
4042	if (event != EVENT_INTERFACE_STATUS)
4043		return;
4044
4045	wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
4046	if (wpa_s && wpa_s->driver->get_ifindex) {
4047		unsigned int ifindex;
4048
4049		ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
4050		if (ifindex != data->interface_status.ifindex) {
4051			wpa_dbg(wpa_s, MSG_DEBUG,
4052				"interface status ifindex %d mismatch (%d)",
4053				ifindex, data->interface_status.ifindex);
4054			return;
4055		}
4056	}
4057#ifdef CONFIG_MATCH_IFACE
4058	else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
4059		struct wpa_interface *wpa_i;
4060
4061		wpa_i = wpa_supplicant_match_iface(
4062			ctx, data->interface_status.ifname);
4063		if (!wpa_i)
4064			return;
4065		wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
4066		os_free(wpa_i);
4067		if (wpa_s)
4068			wpa_s->matched = 1;
4069	}
4070#endif /* CONFIG_MATCH_IFACE */
4071
4072	if (wpa_s)
4073		wpa_supplicant_event(wpa_s, event, data);
4074}
4075