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source: rtems-libbsd/freebsd/contrib/wpa/wpa_supplicant/events.c @ 9c9d11b

55-freebsd-126-freebsd-12

Last change on this file since 9c9d11b was 9c9d11b, checked in by Sichen Zhao <1473996754@…>, on 08/01/17 at 12:43:41
Import wpa from FreeBSD
Property mode set to `100644`
File size: 102.6 KB

Line
1	#include <machine/rtems-bsd-user-space.h>
2
3	/*
4	* WPA Supplicant - Driver event processing
5	* Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
6	*
7	* This software may be distributed under the terms of the BSD license.
8	* See README for more details.
9	*/
10
11	#include "includes.h"
12
13	#include "common.h"
14	#include "eapol_supp/eapol_supp_sm.h"
15	#include "rsn_supp/wpa.h"
16	#include "eloop.h"
17	#include "config.h"
18	#include "l2_packet/l2_packet.h"
19	#include "wpa_supplicant_i.h"
20	#include "driver_i.h"
21	#include "pcsc_funcs.h"
22	#include "rsn_supp/preauth.h"
23	#include "rsn_supp/pmksa_cache.h"
24	#include "common/wpa_ctrl.h"
25	#include "eap_peer/eap.h"
26	#include "ap/hostapd.h"
27	#include "p2p/p2p.h"
28	#include "fst/fst.h"
29	#include "wnm_sta.h"
30	#include "notify.h"
31	#include "common/ieee802_11_defs.h"
32	#include "common/ieee802_11_common.h"
33	#include "crypto/random.h"
34	#include "blacklist.h"
35	#include "wpas_glue.h"
36	#include "wps_supplicant.h"
37	#include "ibss_rsn.h"
38	#include "sme.h"
39	#include "gas_query.h"
40	#include "p2p_supplicant.h"
41	#include "bgscan.h"
42	#include "autoscan.h"
43	#include "ap.h"
44	#include "bss.h"
45	#include "scan.h"
46	#include "offchannel.h"
47	#include "interworking.h"
48	#include "mesh.h"
49	#include "mesh_mpm.h"
50	#include "wmm_ac.h"
51
52
53	#ifndef CONFIG_NO_SCAN_PROCESSING
54	static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
55	int new_scan, int own_request);
56	#endif /* CONFIG_NO_SCAN_PROCESSING */
57
58
59	static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
60	struct wpa_ssid *ssid)
61	{
62	struct os_reltime now;
63
64	if (ssid == NULL \|\| ssid->disabled_until.sec == 0)
65	return 0;
66
67	os_get_reltime(&now);
68	if (ssid->disabled_until.sec > now.sec)
69	return ssid->disabled_until.sec - now.sec;
70
71	wpas_clear_temp_disabled(wpa_s, ssid, 0);
72
73	return 0;
74	}
75
76
77	/**
78	* wpas_reenabled_network_time - Time until first network is re-enabled
79	* @wpa_s: Pointer to wpa_supplicant data
80	* Returns: If all enabled networks are temporarily disabled, returns the time
81	* (in sec) until the first network is re-enabled. Otherwise returns 0.
82	*
83	* This function is used in case all enabled networks are temporarily disabled,
84	* in which case it returns the time (in sec) that the first network will be
85	* re-enabled. The function assumes that at least one network is enabled.
86	*/
87	static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
88	{
89	struct wpa_ssid *ssid;
90	int disabled_for, res = 0;
91
92	#ifdef CONFIG_INTERWORKING
93	if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
94	wpa_s->conf->cred)
95	return 0;
96	#endif /* CONFIG_INTERWORKING */
97
98	for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
99	if (ssid->disabled)
100	continue;
101
102	disabled_for = wpas_temp_disabled(wpa_s, ssid);
103	if (!disabled_for)
104	return 0;
105
106	if (!res \|\| disabled_for < res)
107	res = disabled_for;
108	}
109
110	return res;
111	}
112
113
114	void wpas_network_reenabled(void eloop_ctx, void timeout_ctx)
115	{
116	struct wpa_supplicant *wpa_s = eloop_ctx;
117
118	if (wpa_s->disconnected \|\| wpa_s->wpa_state != WPA_SCANNING)
119	return;
120
121	wpa_dbg(wpa_s, MSG_DEBUG,
122	"Try to associate due to network getting re-enabled");
123	if (wpa_supplicant_fast_associate(wpa_s) != 1) {
124	wpa_supplicant_cancel_sched_scan(wpa_s);
125	wpa_supplicant_req_scan(wpa_s, 0, 0);
126	}
127	}
128
129
130	static struct wpa_bss * wpa_supplicant_get_new_bss(
131	struct wpa_supplicant wpa_s, const u8 bssid)
132	{
133	struct wpa_bss *bss = NULL;
134	struct wpa_ssid *ssid = wpa_s->current_ssid;
135
136	if (ssid->ssid_len > 0)
137	bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
138	if (!bss)
139	bss = wpa_bss_get_bssid(wpa_s, bssid);
140
141	return bss;
142	}
143
144
145	static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
146	{
147	struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
148
149	if (!bss) {
150	wpa_supplicant_update_scan_results(wpa_s);
151
152	/* Get the BSS from the new scan results */
153	bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
154	}
155
156	if (bss)
157	wpa_s->current_bss = bss;
158	}
159
160
161	static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
162	{
163	struct wpa_ssid ssid, old_ssid;
164	u8 drv_ssid[SSID_MAX_LEN];
165	size_t drv_ssid_len;
166	int res;
167
168	if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
169	wpa_supplicant_update_current_bss(wpa_s);
170
171	if (wpa_s->current_ssid->ssid_len == 0)
172	return 0; /* current profile still in use */
173	res = wpa_drv_get_ssid(wpa_s, drv_ssid);
174	if (res < 0) {
175	wpa_msg(wpa_s, MSG_INFO,
176	"Failed to read SSID from driver");
177	return 0; /* try to use current profile */
178	}
179	drv_ssid_len = res;
180
181	if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
182	os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
183	drv_ssid_len) == 0)
184	return 0; /* current profile still in use */
185
186	wpa_msg(wpa_s, MSG_DEBUG,
187	"Driver-initiated BSS selection changed the SSID to %s",
188	wpa_ssid_txt(drv_ssid, drv_ssid_len));
189	/* continue selecting a new network profile */
190	}
191
192	wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
193	"information");
194	ssid = wpa_supplicant_get_ssid(wpa_s);
195	if (ssid == NULL) {
196	wpa_msg(wpa_s, MSG_INFO,
197	"No network configuration found for the current AP");
198	return -1;
199	}
200
201	if (wpas_network_disabled(wpa_s, ssid)) {
202	wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
203	return -1;
204	}
205
206	if (disallowed_bssid(wpa_s, wpa_s->bssid) \|\|
207	disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
208	wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
209	return -1;
210	}
211
212	res = wpas_temp_disabled(wpa_s, ssid);
213	if (res > 0) {
214	wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
215	"disabled for %d second(s)", res);
216	return -1;
217	}
218
219	wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
220	"current AP");
221	if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
222	u8 wpa_ie[80];
223	size_t wpa_ie_len = sizeof(wpa_ie);
224	if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
225	wpa_ie, &wpa_ie_len) < 0)
226	wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
227	} else {
228	wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
229	}
230
231	if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
232	eapol_sm_invalidate_cached_session(wpa_s->eapol);
233	old_ssid = wpa_s->current_ssid;
234	wpa_s->current_ssid = ssid;
235
236	wpa_supplicant_update_current_bss(wpa_s);
237
238	wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
239	wpa_supplicant_initiate_eapol(wpa_s);
240	if (old_ssid != wpa_s->current_ssid)
241	wpas_notify_network_changed(wpa_s);
242
243	return 0;
244	}
245
246
247	void wpa_supplicant_stop_countermeasures(void eloop_ctx, void sock_ctx)
248	{
249	struct wpa_supplicant *wpa_s = eloop_ctx;
250
251	if (wpa_s->countermeasures) {
252	wpa_s->countermeasures = 0;
253	wpa_drv_set_countermeasures(wpa_s, 0);
254	wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
255
256	/*
257	* It is possible that the device is sched scanning, which means
258	* that a connection attempt will be done only when we receive
259	* scan results. However, in this case, it would be preferable
260	* to scan and connect immediately, so cancel the sched_scan and
261	* issue a regular scan flow.
262	*/
263	wpa_supplicant_cancel_sched_scan(wpa_s);
264	wpa_supplicant_req_scan(wpa_s, 0, 0);
265	}
266	}
267
268
269	void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
270	{
271	int bssid_changed;
272
273	wnm_bss_keep_alive_deinit(wpa_s);
274
275	#ifdef CONFIG_IBSS_RSN
276	ibss_rsn_deinit(wpa_s->ibss_rsn);
277	wpa_s->ibss_rsn = NULL;
278	#endif /* CONFIG_IBSS_RSN */
279
280	#ifdef CONFIG_AP
281	wpa_supplicant_ap_deinit(wpa_s);
282	#endif /* CONFIG_AP */
283
284	if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
285	return;
286
287	wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
288	bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
289	os_memset(wpa_s->bssid, 0, ETH_ALEN);
290	os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
291	sme_clear_on_disassoc(wpa_s);
292	wpa_s->current_bss = NULL;
293	wpa_s->assoc_freq = 0;
294
295	if (bssid_changed)
296	wpas_notify_bssid_changed(wpa_s);
297
298	eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
299	eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
300	if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
301	eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
302	wpa_s->ap_ies_from_associnfo = 0;
303	wpa_s->current_ssid = NULL;
304	eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
305	wpa_s->key_mgmt = 0;
306
307	wpas_rrm_reset(wpa_s);
308	}
309
310
311	static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
312	{
313	struct wpa_ie_data ie;
314	int pmksa_set = -1;
315	size_t i;
316
317	if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 \|\|
318	ie.pmkid == NULL)
319	return;
320
321	for (i = 0; i < ie.num_pmkid; i++) {
322	pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
323	ie.pmkid + i * PMKID_LEN,
324	NULL, NULL, 0);
325	if (pmksa_set == 0) {
326	eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
327	break;
328	}
329	}
330
331	wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
332	"PMKSA cache", pmksa_set == 0 ? "" : "not ");
333	}
334
335
336	static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
337	union wpa_event_data *data)
338	{
339	if (data == NULL) {
340	wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
341	"event");
342	return;
343	}
344	wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
345	" index=%d preauth=%d",
346	MAC2STR(data->pmkid_candidate.bssid),
347	data->pmkid_candidate.index,
348	data->pmkid_candidate.preauth);
349
350	pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
351	data->pmkid_candidate.index,
352	data->pmkid_candidate.preauth);
353	}
354
355
356	static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
357	{
358	if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE \|\|
359	wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
360	return 0;
361
362	#ifdef IEEE8021X_EAPOL
363	if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
364	wpa_s->current_ssid &&
365	!(wpa_s->current_ssid->eapol_flags &
366	(EAPOL_FLAG_REQUIRE_KEY_UNICAST \|
367	EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
368	/* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
369	* plaintext or static WEP keys). */
370	return 0;
371	}
372	#endif /* IEEE8021X_EAPOL */
373
374	return 1;
375	}
376
377
378	/**
379	* wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
380	* @wpa_s: pointer to wpa_supplicant data
381	* @ssid: Configuration data for the network
382	* Returns: 0 on success, -1 on failure
383	*
384	* This function is called when starting authentication with a network that is
385	* configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
386	*/
387	int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
388	struct wpa_ssid *ssid)
389	{
390	#ifdef IEEE8021X_EAPOL
391	#ifdef PCSC_FUNCS
392	int aka = 0, sim = 0;
393
394	if ((ssid != NULL && ssid->eap.pcsc == NULL) \|\|
395	wpa_s->scard != NULL \|\| wpa_s->conf->external_sim)
396	return 0;
397
398	if (ssid == NULL \|\| ssid->eap.eap_methods == NULL) {
399	sim = 1;
400	aka = 1;
401	} else {
402	struct eap_method_type *eap = ssid->eap.eap_methods;
403	while (eap->vendor != EAP_VENDOR_IETF \|\|
404	eap->method != EAP_TYPE_NONE) {
405	if (eap->vendor == EAP_VENDOR_IETF) {
406	if (eap->method == EAP_TYPE_SIM)
407	sim = 1;
408	else if (eap->method == EAP_TYPE_AKA \|\|
409	eap->method == EAP_TYPE_AKA_PRIME)
410	aka = 1;
411	}
412	eap++;
413	}
414	}
415
416	if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
417	sim = 0;
418	if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
419	eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
420	NULL)
421	aka = 0;
422
423	if (!sim && !aka) {
424	wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
425	"use SIM, but neither EAP-SIM nor EAP-AKA are "
426	"enabled");
427	return 0;
428	}
429
430	wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
431	"(sim=%d aka=%d) - initialize PCSC", sim, aka);
432
433	wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
434	if (wpa_s->scard == NULL) {
435	wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
436	"(pcsc-lite)");
437	return -1;
438	}
439	wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
440	eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
441	#endif /* PCSC_FUNCS */
442	#endif /* IEEE8021X_EAPOL */
443
444	return 0;
445	}
446
447
448	#ifndef CONFIG_NO_SCAN_PROCESSING
449
450	static int has_wep_key(struct wpa_ssid *ssid)
451	{
452	int i;
453
454	for (i = 0; i < NUM_WEP_KEYS; i++) {
455	if (ssid->wep_key_len[i])
456	return 1;
457	}
458
459	return 0;
460	}
461
462
463	static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
464	struct wpa_ssid *ssid)
465	{
466	int privacy = 0;
467
468	if (ssid->mixed_cell)
469	return 1;
470
471	#ifdef CONFIG_WPS
472	if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
473	return 1;
474	#endif /* CONFIG_WPS */
475
476	if (has_wep_key(ssid))
477	privacy = 1;
478
479	#ifdef IEEE8021X_EAPOL
480	if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
481	ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST \|
482	EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
483	privacy = 1;
484	#endif /* IEEE8021X_EAPOL */
485
486	if (wpa_key_mgmt_wpa(ssid->key_mgmt))
487	privacy = 1;
488
489	if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
490	privacy = 1;
491
492	if (bss->caps & IEEE80211_CAP_PRIVACY)
493	return privacy;
494	return !privacy;
495	}
496
497
498	static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
499	struct wpa_ssid *ssid,
500	struct wpa_bss *bss)
501	{
502	struct wpa_ie_data ie;
503	int proto_match = 0;
504	const u8 rsn_ie, wpa_ie;
505	int ret;
506	int wep_ok;
507
508	ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
509	if (ret >= 0)
510	return ret;
511
512	/* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
513	wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
514	(((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
515	ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) \|\|
516	(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
517
518	rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
519	while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
520	proto_match++;
521
522	if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
523	wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
524	"failed");
525	break;
526	}
527
528	if (wep_ok &&
529	(ie.group_cipher & (WPA_CIPHER_WEP40 \| WPA_CIPHER_WEP104)))
530	{
531	wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
532	"in RSN IE");
533	return 1;
534	}
535
536	if (!(ie.proto & ssid->proto)) {
537	wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
538	"mismatch");
539	break;
540	}
541
542	if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
543	wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
544	"cipher mismatch");
545	break;
546	}
547
548	if (!(ie.group_cipher & ssid->group_cipher)) {
549	wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
550	"cipher mismatch");
551	break;
552	}
553
554	if (!(ie.key_mgmt & ssid->key_mgmt)) {
555	wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
556	"mismatch");
557	break;
558	}
559
560	#ifdef CONFIG_IEEE80211W
561	if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
562	wpas_get_ssid_pmf(wpa_s, ssid) ==
563	MGMT_FRAME_PROTECTION_REQUIRED) {
564	wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
565	"frame protection");
566	break;
567	}
568	#endif /* CONFIG_IEEE80211W */
569
570	wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
571	return 1;
572	}
573
574	wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
575	while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
576	proto_match++;
577
578	if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
579	wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
580	"failed");
581	break;
582	}
583
584	if (wep_ok &&
585	(ie.group_cipher & (WPA_CIPHER_WEP40 \| WPA_CIPHER_WEP104)))
586	{
587	wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
588	"in WPA IE");
589	return 1;
590	}
591
592	if (!(ie.proto & ssid->proto)) {
593	wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
594	"mismatch");
595	break;
596	}
597
598	if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
599	wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
600	"cipher mismatch");
601	break;
602	}
603
604	if (!(ie.group_cipher & ssid->group_cipher)) {
605	wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
606	"cipher mismatch");
607	break;
608	}
609
610	if (!(ie.key_mgmt & ssid->key_mgmt)) {
611	wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
612	"mismatch");
613	break;
614	}
615
616	wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
617	return 1;
618	}
619
620	if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
621	!rsn_ie) {
622	wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
623	return 1;
624	}
625
626	if ((ssid->proto & (WPA_PROTO_WPA \| WPA_PROTO_RSN)) &&
627	wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
628	wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
629	return 0;
630	}
631
632	if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
633	wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
634	wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
635	return 1;
636	}
637
638	if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
639	wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
640	return 1;
641	}
642
643	wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
644	"WPA/WPA2");
645
646	return 0;
647	}
648
649
650	static int freq_allowed(int *freqs, int freq)
651	{
652	int i;
653
654	if (freqs == NULL)
655	return 1;
656
657	for (i = 0; freqs[i]; i++)
658	if (freqs[i] == freq)
659	return 1;
660	return 0;
661	}
662
663
664	static int rate_match(struct wpa_supplicant wpa_s, struct wpa_bss bss)
665	{
666	const struct hostapd_hw_modes mode = NULL, modes;
667	const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
668	const u8 *rate_ie;
669	int i, j, k;
670
671	if (bss->freq == 0)
672	return 1; /* Cannot do matching without knowing band */
673
674	modes = wpa_s->hw.modes;
675	if (modes == NULL) {
676	/*
677	* The driver does not provide any additional information
678	* about the utilized hardware, so allow the connection attempt
679	* to continue.
680	*/
681	return 1;
682	}
683
684	for (i = 0; i < wpa_s->hw.num_modes; i++) {
685	for (j = 0; j < modes[i].num_channels; j++) {
686	int freq = modes[i].channels[j].freq;
687	if (freq == bss->freq) {
688	if (mode &&
689	mode->mode == HOSTAPD_MODE_IEEE80211G)
690	break; /* do not allow 802.11b replace
691	* 802.11g */
692	mode = &modes[i];
693	break;
694	}
695	}
696	}
697
698	if (mode == NULL)
699	return 0;
700
701	for (i = 0; i < (int) sizeof(scan_ie); i++) {
702	rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
703	if (rate_ie == NULL)
704	continue;
705
706	for (j = 2; j < rate_ie[1] + 2; j++) {
707	int flagged = !!(rate_ie[j] & 0x80);
708	int r = (rate_ie[j] & 0x7f) * 5;
709
710	/*
711	* IEEE Std 802.11n-2009 7.3.2.2:
712	* The new BSS Membership selector value is encoded
713	* like a legacy basic rate, but it is not a rate and
714	* only indicates if the BSS members are required to
715	* support the mandatory features of Clause 20 [HT PHY]
716	* in order to join the BSS.
717	*/
718	if (flagged && ((rate_ie[j] & 0x7f) ==
719	BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
720	if (!ht_supported(mode)) {
721	wpa_dbg(wpa_s, MSG_DEBUG,
722	" hardware does not support "
723	"HT PHY");
724	return 0;
725	}
726	continue;
727	}
728
729	/* There's also a VHT selector for 802.11ac */
730	if (flagged && ((rate_ie[j] & 0x7f) ==
731	BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
732	if (!vht_supported(mode)) {
733	wpa_dbg(wpa_s, MSG_DEBUG,
734	" hardware does not support "
735	"VHT PHY");
736	return 0;
737	}
738	continue;
739	}
740
741	if (!flagged)
742	continue;
743
744	/* check for legacy basic rates */
745	for (k = 0; k < mode->num_rates; k++) {
746	if (mode->rates[k] == r)
747	break;
748	}
749	if (k == mode->num_rates) {
750	/*
751	* IEEE Std 802.11-2007 7.3.2.2 demands that in
752	* order to join a BSS all required rates
753	* have to be supported by the hardware.
754	*/
755	wpa_dbg(wpa_s, MSG_DEBUG,
756	" hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
757	r / 10, r % 10,
758	bss->freq, mode->mode, mode->num_rates);
759	return 0;
760	}
761	}
762	}
763
764	return 1;
765	}
766
767
768	/*
769	* Test whether BSS is in an ESS.
770	* This is done differently in DMG (60 GHz) and non-DMG bands
771	*/
772	static int bss_is_ess(struct wpa_bss *bss)
773	{
774	if (bss_is_dmg(bss)) {
775	return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
776	IEEE80211_CAP_DMG_AP;
777	}
778
779	return ((bss->caps & (IEEE80211_CAP_ESS \| IEEE80211_CAP_IBSS)) ==
780	IEEE80211_CAP_ESS);
781	}
782
783
784	static int match_mac_mask(const u8 addr_a, const u8 addr_b, const u8 *mask)
785	{
786	size_t i;
787
788	for (i = 0; i < ETH_ALEN; i++) {
789	if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
790	return 0;
791	}
792	return 1;
793	}
794
795
796	static int addr_in_list(const u8 addr, const u8 list, size_t num)
797	{
798	size_t i;
799
800	for (i = 0; i < num; i++) {
801	const u8 a = list + i ETH_ALEN * 2;
802	const u8 *m = a + ETH_ALEN;
803
804	if (match_mac_mask(a, addr, m))
805	return 1;
806	}
807	return 0;
808	}
809
810
811	static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
812	int i, struct wpa_bss *bss,
813	struct wpa_ssid *group,
814	int only_first_ssid)
815	{
816	u8 wpa_ie_len, rsn_ie_len;
817	int wpa;
818	struct wpa_blacklist *e;
819	const u8 *ie;
820	struct wpa_ssid *ssid;
821	int osen;
822
823	ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
824	wpa_ie_len = ie ? ie[1] : 0;
825
826	ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
827	rsn_ie_len = ie ? ie[1] : 0;
828
829	ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
830	osen = ie != NULL;
831
832	wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
833	"wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
834	i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
835	wpa_ie_len, rsn_ie_len, bss->caps, bss->level, bss->freq,
836	wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "",
837	(wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) \|\|
838	wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ?
839	" p2p" : "",
840	osen ? " osen=1" : "");
841
842	e = wpa_blacklist_get(wpa_s, bss->bssid);
843	if (e) {
844	int limit = 1;
845	if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
846	/*
847	* When only a single network is enabled, we can
848	* trigger blacklisting on the first failure. This
849	* should not be done with multiple enabled networks to
850	* avoid getting forced to move into a worse ESS on
851	* single error if there are no other BSSes of the
852	* current ESS.
853	*/
854	limit = 0;
855	}
856	if (e->count > limit) {
857	wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
858	"(count=%d limit=%d)", e->count, limit);
859	return NULL;
860	}
861	}
862
863	if (bss->ssid_len == 0) {
864	wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
865	return NULL;
866	}
867
868	if (disallowed_bssid(wpa_s, bss->bssid)) {
869	wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
870	return NULL;
871	}
872
873	if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
874	wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
875	return NULL;
876	}
877
878	wpa = wpa_ie_len > 0 \|\| rsn_ie_len > 0;
879
880	for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
881	int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
882	int res;
883
884	if (wpas_network_disabled(wpa_s, ssid)) {
885	wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
886	continue;
887	}
888
889	res = wpas_temp_disabled(wpa_s, ssid);
890	if (res > 0) {
891	wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
892	"temporarily for %d second(s)", res);
893	continue;
894	}
895
896	#ifdef CONFIG_WPS
897	if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
898	wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
899	"(WPS)");
900	continue;
901	}
902
903	if (wpa && ssid->ssid_len == 0 &&
904	wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
905	check_ssid = 0;
906
907	if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
908	/* Only allow wildcard SSID match if an AP
909	* advertises active WPS operation that matches
910	* with our mode. */
911	check_ssid = 1;
912	if (ssid->ssid_len == 0 &&
913	wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
914	check_ssid = 0;
915	}
916	#endif /* CONFIG_WPS */
917
918	if (ssid->bssid_set && ssid->ssid_len == 0 &&
919	os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
920	check_ssid = 0;
921
922	if (check_ssid &&
923	(bss->ssid_len != ssid->ssid_len \|\|
924	os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
925	wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
926	continue;
927	}
928
929	if (ssid->bssid_set &&
930	os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
931	wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
932	continue;
933	}
934
935	/* check blacklist */
936	if (ssid->num_bssid_blacklist &&
937	addr_in_list(bss->bssid, ssid->bssid_blacklist,
938	ssid->num_bssid_blacklist)) {
939	wpa_dbg(wpa_s, MSG_DEBUG,
940	" skip - BSSID blacklisted");
941	continue;
942	}
943
944	/* if there is a whitelist, only accept those APs */
945	if (ssid->num_bssid_whitelist &&
946	!addr_in_list(bss->bssid, ssid->bssid_whitelist,
947	ssid->num_bssid_whitelist)) {
948	wpa_dbg(wpa_s, MSG_DEBUG,
949	" skip - BSSID not in whitelist");
950	continue;
951	}
952
953	if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
954	continue;
955
956	if (!osen && !wpa &&
957	!(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
958	!(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
959	!(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
960	wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
961	"not allowed");
962	continue;
963	}
964
965	if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
966	has_wep_key(ssid)) {
967	wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block");
968	continue;
969	}
970
971	if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) {
972	wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-OSEN network "
973	"not allowed");
974	continue;
975	}
976
977	if (!wpa_supplicant_match_privacy(bss, ssid)) {
978	wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
979	"mismatch");
980	continue;
981	}
982
983	if (!bss_is_ess(bss)) {
984	wpa_dbg(wpa_s, MSG_DEBUG, " skip - not ESS network");
985	continue;
986	}
987
988	if (!freq_allowed(ssid->freq_list, bss->freq)) {
989	wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
990	"allowed");
991	continue;
992	}
993
994	if (!rate_match(wpa_s, bss)) {
995	wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
996	"not match");
997	continue;
998	}
999
1000	#ifdef CONFIG_P2P
1001	if (ssid->p2p_group &&
1002	!wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1003	!wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1004	wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
1005	continue;
1006	}
1007
1008	if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1009	struct wpabuf *p2p_ie;
1010	u8 dev_addr[ETH_ALEN];
1011
1012	ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1013	if (ie == NULL) {
1014	wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element");
1015	continue;
1016	}
1017	p2p_ie = wpa_bss_get_vendor_ie_multi(
1018	bss, P2P_IE_VENDOR_TYPE);
1019	if (p2p_ie == NULL) {
1020	wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element");
1021	continue;
1022	}
1023
1024	if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
1025	\|\| os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
1026	ETH_ALEN) != 0) {
1027	wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element");
1028	wpabuf_free(p2p_ie);
1029	continue;
1030	}
1031	wpabuf_free(p2p_ie);
1032	}
1033
1034	/*
1035	* TODO: skip the AP if its P2P IE has Group Formation
1036	* bit set in the P2P Group Capability Bitmap and we
1037	* are not in Group Formation with that device.
1038	*/
1039	#endif /* CONFIG_P2P */
1040
1041	if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time))
1042	{
1043	struct os_reltime diff;
1044
1045	os_reltime_sub(&wpa_s->scan_min_time,
1046	&bss->last_update, &diff);
1047	wpa_dbg(wpa_s, MSG_DEBUG,
1048	" skip - scan result not recent enough (%u.%06u seconds too old)",
1049	(unsigned int) diff.sec,
1050	(unsigned int) diff.usec);
1051	continue;
1052	}
1053
1054	/* Matching configuration found */
1055	return ssid;
1056	}
1057
1058	/* No matching configuration found */
1059	return NULL;
1060	}
1061
1062
1063	static struct wpa_bss *
1064	wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1065	struct wpa_ssid *group,
1066	struct wpa_ssid **selected_ssid,
1067	int only_first_ssid)
1068	{
1069	unsigned int i;
1070
1071	if (only_first_ssid)
1072	wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1073	group->id);
1074	else
1075	wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1076	group->priority);
1077
1078	for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1079	struct wpa_bss *bss = wpa_s->last_scan_res[i];
1080	*selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1081	only_first_ssid);
1082	if (!*selected_ssid)
1083	continue;
1084	wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
1085	" ssid='%s'",
1086	MAC2STR(bss->bssid),
1087	wpa_ssid_txt(bss->ssid, bss->ssid_len));
1088	return bss;
1089	}
1090
1091	return NULL;
1092	}
1093
1094
1095	struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1096	struct wpa_ssid **selected_ssid)
1097	{
1098	struct wpa_bss *selected = NULL;
1099	int prio;
1100	struct wpa_ssid *next_ssid = NULL;
1101	struct wpa_ssid *ssid;
1102
1103	if (wpa_s->last_scan_res == NULL \|\|
1104	wpa_s->last_scan_res_used == 0)
1105	return NULL; /* no scan results from last update */
1106
1107	if (wpa_s->next_ssid) {
1108	/* check that next_ssid is still valid */
1109	for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1110	if (ssid == wpa_s->next_ssid)
1111	break;
1112	}
1113	next_ssid = ssid;
1114	wpa_s->next_ssid = NULL;
1115	}
1116
1117	while (selected == NULL) {
1118	for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1119	if (next_ssid && next_ssid->priority ==
1120	wpa_s->conf->pssid[prio]->priority) {
1121	selected = wpa_supplicant_select_bss(
1122	wpa_s, next_ssid, selected_ssid, 1);
1123	if (selected)
1124	break;
1125	}
1126	selected = wpa_supplicant_select_bss(
1127	wpa_s, wpa_s->conf->pssid[prio],
1128	selected_ssid, 0);
1129	if (selected)
1130	break;
1131	}
1132
1133	if (selected == NULL && wpa_s->blacklist &&
1134	!wpa_s->countermeasures) {
1135	wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1136	"blacklist and try again");
1137	wpa_blacklist_clear(wpa_s);
1138	wpa_s->blacklist_cleared++;
1139	} else if (selected == NULL)
1140	break;
1141	}
1142
1143	ssid = *selected_ssid;
1144	if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1145	!ssid->passphrase && !ssid->ext_psk) {
1146	const char field_name, txt = NULL;
1147
1148	wpa_dbg(wpa_s, MSG_DEBUG,
1149	"PSK/passphrase not yet available for the selected network");
1150
1151	wpas_notify_network_request(wpa_s, ssid,
1152	WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1153
1154	field_name = wpa_supplicant_ctrl_req_to_string(
1155	WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1156	if (field_name == NULL)
1157	return NULL;
1158
1159	wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1160
1161	selected = NULL;
1162	}
1163
1164	return selected;
1165	}
1166
1167
1168	static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1169	int timeout_sec, int timeout_usec)
1170	{
1171	if (!wpa_supplicant_enabled_networks(wpa_s)) {
1172	/*
1173	* No networks are enabled; short-circuit request so
1174	* we don't wait timeout seconds before transitioning
1175	* to INACTIVE state.
1176	*/
1177	wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1178	"since there are no enabled networks");
1179	wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1180	return;
1181	}
1182
1183	wpa_s->scan_for_connection = 1;
1184	wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1185	}
1186
1187
1188	int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1189	struct wpa_bss *selected,
1190	struct wpa_ssid *ssid)
1191	{
1192	if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1193	wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1194	"PBC session overlap");
1195	wpas_notify_wps_event_pbc_overlap(wpa_s);
1196	#ifdef CONFIG_P2P
1197	if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT \|\|
1198	wpa_s->p2p_in_provisioning) {
1199	eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1200	wpa_s, NULL);
1201	return -1;
1202	}
1203	#endif /* CONFIG_P2P */
1204
1205	#ifdef CONFIG_WPS
1206	wpas_wps_pbc_overlap(wpa_s);
1207	wpas_wps_cancel(wpa_s);
1208	#endif /* CONFIG_WPS */
1209	return -1;
1210	}
1211
1212	wpa_msg(wpa_s, MSG_DEBUG,
1213	"Considering connect request: reassociate: %d selected: "
1214	MACSTR " bssid: " MACSTR " pending: " MACSTR
1215	" wpa_state: %s ssid=%p current_ssid=%p",
1216	wpa_s->reassociate, MAC2STR(selected->bssid),
1217	MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1218	wpa_supplicant_state_txt(wpa_s->wpa_state),
1219	ssid, wpa_s->current_ssid);
1220
1221	/*
1222	* Do not trigger new association unless the BSSID has changed or if
1223	* reassociation is requested. If we are in process of associating with
1224	* the selected BSSID, do not trigger new attempt.
1225	*/
1226	if (wpa_s->reassociate \|\|
1227	(os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1228	((wpa_s->wpa_state != WPA_ASSOCIATING &&
1229	wpa_s->wpa_state != WPA_AUTHENTICATING) \|\|
1230	(!is_zero_ether_addr(wpa_s->pending_bssid) &&
1231	os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1232	0) \|\|
1233	(is_zero_ether_addr(wpa_s->pending_bssid) &&
1234	ssid != wpa_s->current_ssid)))) {
1235	if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1236	wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1237	return 0;
1238	}
1239	wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1240	MAC2STR(selected->bssid));
1241	wpa_supplicant_associate(wpa_s, selected, ssid);
1242	} else {
1243	wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1244	"connect with the selected AP");
1245	}
1246
1247	return 0;
1248	}
1249
1250
1251	static struct wpa_ssid *
1252	wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1253	{
1254	int prio;
1255	struct wpa_ssid *ssid;
1256
1257	for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1258	for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1259	{
1260	if (wpas_network_disabled(wpa_s, ssid))
1261	continue;
1262	if (ssid->mode == IEEE80211_MODE_IBSS \|\|
1263	ssid->mode == IEEE80211_MODE_AP \|\|
1264	ssid->mode == IEEE80211_MODE_MESH)
1265	return ssid;
1266	}
1267	}
1268	return NULL;
1269	}
1270
1271
1272	/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1273	* on BSS added and BSS changed events */
1274	static void wpa_supplicant_rsn_preauth_scan_results(
1275	struct wpa_supplicant *wpa_s)
1276	{
1277	struct wpa_bss *bss;
1278
1279	if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1280	return;
1281
1282	dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1283	const u8 ssid, rsn;
1284
1285	ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1286	if (ssid == NULL)
1287	continue;
1288
1289	rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1290	if (rsn == NULL)
1291	continue;
1292
1293	rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1294	}
1295
1296	}
1297
1298
1299	static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1300	struct wpa_bss *selected,
1301	struct wpa_ssid *ssid)
1302	{
1303	struct wpa_bss *current_bss = NULL;
1304	#ifndef CONFIG_NO_ROAMING
1305	int min_diff;
1306	#endif /* CONFIG_NO_ROAMING */
1307
1308	if (wpa_s->reassociate)
1309	return 1; /* explicit request to reassociate */
1310	if (wpa_s->wpa_state < WPA_ASSOCIATED)
1311	return 1; /* we are not associated; continue */
1312	if (wpa_s->current_ssid == NULL)
1313	return 1; /* unknown current SSID */
1314	if (wpa_s->current_ssid != ssid)
1315	return 1; /* different network block */
1316
1317	if (wpas_driver_bss_selection(wpa_s))
1318	return 0; /* Driver-based roaming */
1319
1320	if (wpa_s->current_ssid->ssid)
1321	current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1322	wpa_s->current_ssid->ssid,
1323	wpa_s->current_ssid->ssid_len);
1324	if (!current_bss)
1325	current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1326
1327	if (!current_bss)
1328	return 1; /* current BSS not seen in scan results */
1329
1330	if (current_bss == selected)
1331	return 0;
1332
1333	if (selected->last_update_idx > current_bss->last_update_idx)
1334	return 1; /* current BSS not seen in the last scan */
1335
1336	#ifndef CONFIG_NO_ROAMING
1337	wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1338	wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1339	" level=%d snr=%d est_throughput=%u",
1340	MAC2STR(current_bss->bssid), current_bss->level,
1341	current_bss->snr, current_bss->est_throughput);
1342	wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1343	" level=%d snr=%d est_throughput=%u",
1344	MAC2STR(selected->bssid), selected->level,
1345	selected->snr, selected->est_throughput);
1346
1347	if (wpa_s->current_ssid->bssid_set &&
1348	os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1349	0) {
1350	wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1351	"has preferred BSSID");
1352	return 1;
1353	}
1354
1355	if (selected->est_throughput > current_bss->est_throughput + 5000) {
1356	wpa_dbg(wpa_s, MSG_DEBUG,
1357	"Allow reassociation - selected BSS has better estimated throughput");
1358	return 1;
1359	}
1360
1361	if (current_bss->level < 0 && current_bss->level > selected->level) {
1362	wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1363	"signal level");
1364	return 0;
1365	}
1366
1367	min_diff = 2;
1368	if (current_bss->level < 0) {
1369	if (current_bss->level < -85)
1370	min_diff = 1;
1371	else if (current_bss->level < -80)
1372	min_diff = 2;
1373	else if (current_bss->level < -75)
1374	min_diff = 3;
1375	else if (current_bss->level < -70)
1376	min_diff = 4;
1377	else
1378	min_diff = 5;
1379	}
1380	if (abs(current_bss->level - selected->level) < min_diff) {
1381	wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1382	"in signal level");
1383	return 0;
1384	}
1385
1386	return 1;
1387	#else /* CONFIG_NO_ROAMING */
1388	return 0;
1389	#endif /* CONFIG_NO_ROAMING */
1390	}
1391
1392
1393	/* Return != 0 if no scan results could be fetched or if scan results should not
1394	* be shared with other virtual interfaces. */
1395	static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1396	union wpa_event_data *data,
1397	int own_request)
1398	{
1399	struct wpa_scan_results *scan_res = NULL;
1400	int ret = 0;
1401	int ap = 0;
1402	#ifndef CONFIG_NO_RANDOM_POOL
1403	size_t i, num;
1404	#endif /* CONFIG_NO_RANDOM_POOL */
1405
1406	#ifdef CONFIG_AP
1407	if (wpa_s->ap_iface)
1408	ap = 1;
1409	#endif /* CONFIG_AP */
1410
1411	wpa_supplicant_notify_scanning(wpa_s, 0);
1412
1413	scan_res = wpa_supplicant_get_scan_results(wpa_s,
1414	data ? &data->scan_info :
1415	NULL, 1);
1416	if (scan_res == NULL) {
1417	if (wpa_s->conf->ap_scan == 2 \|\| ap \|\|
1418	wpa_s->scan_res_handler == scan_only_handler)
1419	return -1;
1420	if (!own_request)
1421	return -1;
1422	wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1423	"scanning again");
1424	wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1425	ret = -1;
1426	goto scan_work_done;
1427	}
1428
1429	#ifndef CONFIG_NO_RANDOM_POOL
1430	num = scan_res->num;
1431	if (num > 10)
1432	num = 10;
1433	for (i = 0; i < num; i++) {
1434	u8 buf[5];
1435	struct wpa_scan_res *res = scan_res->res[i];
1436	buf[0] = res->bssid[5];
1437	buf[1] = res->qual & 0xff;
1438	buf[2] = res->noise & 0xff;
1439	buf[3] = res->level & 0xff;
1440	buf[4] = res->tsf & 0xff;
1441	random_add_randomness(buf, sizeof(buf));
1442	}
1443	#endif /* CONFIG_NO_RANDOM_POOL */
1444
1445	if (own_request && wpa_s->scan_res_handler &&
1446	(wpa_s->own_scan_running \|\| !wpa_s->radio->external_scan_running)) {
1447	void (scan_res_handler)(struct wpa_supplicant wpa_s,
1448	struct wpa_scan_results *scan_res);
1449
1450	scan_res_handler = wpa_s->scan_res_handler;
1451	wpa_s->scan_res_handler = NULL;
1452	scan_res_handler(wpa_s, scan_res);
1453	ret = -2;
1454	goto scan_work_done;
1455	}
1456
1457	if (ap) {
1458	wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1459	#ifdef CONFIG_AP
1460	if (wpa_s->ap_iface->scan_cb)
1461	wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1462	#endif /* CONFIG_AP */
1463	goto scan_work_done;
1464	}
1465
1466	wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1467	wpa_s->own_scan_running, wpa_s->radio->external_scan_running);
1468	if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1469	wpa_s->manual_scan_use_id && wpa_s->own_scan_running) {
1470	wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1471	wpa_s->manual_scan_id);
1472	wpa_s->manual_scan_use_id = 0;
1473	} else {
1474	wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1475	}
1476	wpas_notify_scan_results(wpa_s);
1477
1478	wpas_notify_scan_done(wpa_s, 1);
1479
1480	if (!wpa_s->own_scan_running && wpa_s->radio->external_scan_running) {
1481	wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1482	wpa_scan_results_free(scan_res);
1483	return 0;
1484	}
1485
1486	if (wnm_scan_process(wpa_s, 1) > 0)
1487	goto scan_work_done;
1488
1489	if (sme_proc_obss_scan(wpa_s) > 0)
1490	goto scan_work_done;
1491
1492	if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1493	goto scan_work_done;
1494
1495	if (autoscan_notify_scan(wpa_s, scan_res))
1496	goto scan_work_done;
1497
1498	if (wpa_s->disconnected) {
1499	wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1500	goto scan_work_done;
1501	}
1502
1503	if (!wpas_driver_bss_selection(wpa_s) &&
1504	bgscan_notify_scan(wpa_s, scan_res) == 1)
1505	goto scan_work_done;
1506
1507	wpas_wps_update_ap_info(wpa_s, scan_res);
1508
1509	wpa_scan_results_free(scan_res);
1510
1511	if (wpa_s->scan_work) {
1512	struct wpa_radio_work *work = wpa_s->scan_work;
1513	wpa_s->scan_work = NULL;
1514	radio_work_done(work);
1515	}
1516
1517	return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
1518
1519	scan_work_done:
1520	wpa_scan_results_free(scan_res);
1521	if (wpa_s->scan_work) {
1522	struct wpa_radio_work *work = wpa_s->scan_work;
1523	wpa_s->scan_work = NULL;
1524	radio_work_done(work);
1525	}
1526	return ret;
1527	}
1528
1529
1530	static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
1531	int new_scan, int own_request)
1532	{
1533	struct wpa_bss *selected;
1534	struct wpa_ssid *ssid = NULL;
1535	int time_to_reenable = wpas_reenabled_network_time(wpa_s);
1536
1537	if (time_to_reenable > 0) {
1538	wpa_dbg(wpa_s, MSG_DEBUG,
1539	"Postpone network selection by %d seconds since all networks are disabled",
1540	time_to_reenable);
1541	eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
1542	eloop_register_timeout(time_to_reenable, 0,
1543	wpas_network_reenabled, wpa_s, NULL);
1544	return 0;
1545	}
1546
1547	if (wpa_s->p2p_mgmt)
1548	return 0; /* no normal connection on p2p_mgmt interface */
1549
1550	selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1551
1552	if (selected) {
1553	int skip;
1554	skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1555	if (skip) {
1556	if (new_scan)
1557	wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1558	return 0;
1559	}
1560
1561	if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1562	wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1563	return -1;
1564	}
1565	if (new_scan)
1566	wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1567	/*
1568	* Do not notify other virtual radios of scan results since we do not
1569	* want them to start other associations at the same time.
1570	*/
1571	return 1;
1572	} else {
1573	#ifdef CONFIG_MESH
1574	if (wpa_s->ifmsh) {
1575	wpa_msg(wpa_s, MSG_INFO,
1576	"Avoiding join because we already joined a mesh group");
1577	return 0;
1578	}
1579	#endif /* CONFIG_MESH */
1580	wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1581	ssid = wpa_supplicant_pick_new_network(wpa_s);
1582	if (ssid) {
1583	wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1584	wpa_supplicant_associate(wpa_s, NULL, ssid);
1585	if (new_scan)
1586	wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1587	} else if (own_request) {
1588	/*
1589	* No SSID found. If SCAN results are as a result of
1590	* own scan request and not due to a scan request on
1591	* another shared interface, try another scan.
1592	*/
1593	int timeout_sec = wpa_s->scan_interval;
1594	int timeout_usec = 0;
1595	#ifdef CONFIG_P2P
1596	int res;
1597
1598	res = wpas_p2p_scan_no_go_seen(wpa_s);
1599	if (res == 2)
1600	return 2;
1601	if (res == 1)
1602	return 0;
1603
1604	if (wpa_s->p2p_in_provisioning \|\|
1605	wpa_s->show_group_started \|\|
1606	wpa_s->p2p_in_invitation) {
1607	/*
1608	* Use shorter wait during P2P Provisioning
1609	* state and during P2P join-a-group operation
1610	* to speed up group formation.
1611	*/
1612	timeout_sec = 0;
1613	timeout_usec = 250000;
1614	wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1615	timeout_usec);
1616	return 0;
1617	}
1618	#endif /* CONFIG_P2P */
1619	#ifdef CONFIG_INTERWORKING
1620	if (wpa_s->conf->auto_interworking &&
1621	wpa_s->conf->interworking &&
1622	wpa_s->conf->cred) {
1623	wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1624	"start ANQP fetch since no matching "
1625	"networks found");
1626	wpa_s->network_select = 1;
1627	wpa_s->auto_network_select = 1;
1628	interworking_start_fetch_anqp(wpa_s);
1629	return 1;
1630	}
1631	#endif /* CONFIG_INTERWORKING */
1632	#ifdef CONFIG_WPS
1633	if (wpa_s->after_wps > 0 \|\| wpas_wps_searching(wpa_s)) {
1634	wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1635	timeout_sec = 0;
1636	timeout_usec = 500000;
1637	wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1638	timeout_usec);
1639	return 0;
1640	}
1641	#endif /* CONFIG_WPS */
1642	if (wpa_supplicant_req_sched_scan(wpa_s))
1643	wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1644	timeout_usec);
1645
1646	wpa_msg_ctrl(wpa_s, MSG_INFO,
1647	WPA_EVENT_NETWORK_NOT_FOUND);
1648	}
1649	}
1650	return 0;
1651	}
1652
1653
1654	static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1655	union wpa_event_data *data)
1656	{
1657	struct wpa_supplicant *ifs;
1658	int res;
1659
1660	res = _wpa_supplicant_event_scan_results(wpa_s, data, 1);
1661	if (res == 2) {
1662	/*
1663	* Interface may have been removed, so must not dereference
1664	* wpa_s after this.
1665	*/
1666	return 1;
1667	}
1668	if (res != 0) {
1669	/*
1670	* If no scan results could be fetched, then no need to
1671	* notify those interfaces that did not actually request
1672	* this scan. Similarly, if scan results started a new operation on this
1673	* interface, do not notify other interfaces to avoid concurrent
1674	* operations during a connection attempt.
1675	*/
1676	return 0;
1677	}
1678
1679	/*
1680	* Check other interfaces to see if they share the same radio. If
1681	* so, they get updated with this same scan info.
1682	*/
1683	dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1684	radio_list) {
1685	if (ifs != wpa_s) {
1686	wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1687	"sibling", ifs->ifname);
1688	_wpa_supplicant_event_scan_results(ifs, data, 0);
1689	}
1690	}
1691
1692	return 0;
1693	}
1694
1695	#endif /* CONFIG_NO_SCAN_PROCESSING */
1696
1697
1698	int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1699	{
1700	#ifdef CONFIG_NO_SCAN_PROCESSING
1701	return -1;
1702	#else /* CONFIG_NO_SCAN_PROCESSING */
1703	struct os_reltime now;
1704
1705	if (wpa_s->last_scan_res_used == 0)
1706	return -1;
1707
1708	os_get_reltime(&now);
1709	if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
1710	wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1711	return -1;
1712	}
1713
1714	return wpas_select_network_from_last_scan(wpa_s, 0, 1);
1715	#endif /* CONFIG_NO_SCAN_PROCESSING */
1716	}
1717
1718	#ifdef CONFIG_WNM
1719
1720	static void wnm_bss_keep_alive(void eloop_ctx, void sock_ctx)
1721	{
1722	struct wpa_supplicant *wpa_s = eloop_ctx;
1723
1724	if (wpa_s->wpa_state < WPA_ASSOCIATED)
1725	return;
1726
1727	if (!wpa_s->no_keep_alive) {
1728	wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1729	MAC2STR(wpa_s->bssid));
1730	/* TODO: could skip this if normal data traffic has been sent */
1731	/* TODO: Consider using some more appropriate data frame for
1732	* this */
1733	if (wpa_s->l2)
1734	l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1735	(u8 *) "", 0);
1736	}
1737
1738	#ifdef CONFIG_SME
1739	if (wpa_s->sme.bss_max_idle_period) {
1740	unsigned int msec;
1741	msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1742	if (msec > 100)
1743	msec -= 100;
1744	eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1745	wnm_bss_keep_alive, wpa_s, NULL);
1746	}
1747	#endif /* CONFIG_SME */
1748	}
1749
1750
1751	static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1752	const u8 *ies, size_t ies_len)
1753	{
1754	struct ieee802_11_elems elems;
1755
1756	if (ies == NULL)
1757	return;
1758
1759	if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1760	return;
1761
1762	#ifdef CONFIG_SME
1763	if (elems.bss_max_idle_period) {
1764	unsigned int msec;
1765	wpa_s->sme.bss_max_idle_period =
1766	WPA_GET_LE16(elems.bss_max_idle_period);
1767	wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1768	"TU)%s", wpa_s->sme.bss_max_idle_period,
1769	(elems.bss_max_idle_period[2] & 0x01) ?
1770	" (protected keep-live required)" : "");
1771	if (wpa_s->sme.bss_max_idle_period == 0)
1772	wpa_s->sme.bss_max_idle_period = 1;
1773	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1774	eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1775	/* msec times 1000 */
1776	msec = wpa_s->sme.bss_max_idle_period * 1024;
1777	if (msec > 100)
1778	msec -= 100;
1779	eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1780	wnm_bss_keep_alive, wpa_s,
1781	NULL);
1782	}
1783	}
1784	#endif /* CONFIG_SME */
1785	}
1786
1787	#endif /* CONFIG_WNM */
1788
1789
1790	void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1791	{
1792	#ifdef CONFIG_WNM
1793	eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1794	#endif /* CONFIG_WNM */
1795	}
1796
1797
1798	#ifdef CONFIG_INTERWORKING
1799
1800	static int wpas_qos_map_set(struct wpa_supplicant wpa_s, const u8 qos_map,
1801	size_t len)
1802	{
1803	int res;
1804
1805	wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1806	res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1807	if (res) {
1808	wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1809	}
1810
1811	return res;
1812	}
1813
1814
1815	static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1816	const u8 *ies, size_t ies_len)
1817	{
1818	struct ieee802_11_elems elems;
1819
1820	if (ies == NULL)
1821	return;
1822
1823	if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1824	return;
1825
1826	if (elems.qos_map_set) {
1827	wpas_qos_map_set(wpa_s, elems.qos_map_set,
1828	elems.qos_map_set_len);
1829	}
1830	}
1831
1832	#endif /* CONFIG_INTERWORKING */
1833
1834
1835	static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1836	union wpa_event_data *data)
1837	{
1838	int l, len, found = 0, wpa_found, rsn_found;
1839	const u8 *p;
1840	#ifdef CONFIG_IEEE80211R
1841	u8 bssid[ETH_ALEN];
1842	#endif /* CONFIG_IEEE80211R */
1843
1844	wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1845	if (data->assoc_info.req_ies)
1846	wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1847	data->assoc_info.req_ies_len);
1848	if (data->assoc_info.resp_ies) {
1849	wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1850	data->assoc_info.resp_ies_len);
1851	#ifdef CONFIG_TDLS
1852	wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1853	data->assoc_info.resp_ies_len);
1854	#endif /* CONFIG_TDLS */
1855	#ifdef CONFIG_WNM
1856	wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1857	data->assoc_info.resp_ies_len);
1858	#endif /* CONFIG_WNM */
1859	#ifdef CONFIG_INTERWORKING
1860	interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1861	data->assoc_info.resp_ies_len);
1862	#endif /* CONFIG_INTERWORKING */
1863	}
1864	if (data->assoc_info.beacon_ies)
1865	wpa_hexdump(MSG_DEBUG, "beacon_ies",
1866	data->assoc_info.beacon_ies,
1867	data->assoc_info.beacon_ies_len);
1868	if (data->assoc_info.freq)
1869	wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1870	data->assoc_info.freq);
1871
1872	p = data->assoc_info.req_ies;
1873	l = data->assoc_info.req_ies_len;
1874
1875	/* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1876	while (p && l >= 2) {
1877	len = p[1] + 2;
1878	if (len > l) {
1879	wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1880	p, l);
1881	break;
1882	}
1883	if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1884	(os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) \|\|
1885	(p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1886	if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1887	break;
1888	found = 1;
1889	wpa_find_assoc_pmkid(wpa_s);
1890	break;
1891	}
1892	l -= len;
1893	p += len;
1894	}
1895	if (!found && data->assoc_info.req_ies)
1896	wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1897
1898	#ifdef CONFIG_IEEE80211R
1899	#ifdef CONFIG_SME
1900	if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1901	if (wpa_drv_get_bssid(wpa_s, bssid) < 0 \|\|
1902	wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1903	data->assoc_info.resp_ies,
1904	data->assoc_info.resp_ies_len,
1905	bssid) < 0) {
1906	wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1907	"Reassociation Response failed");
1908	wpa_supplicant_deauthenticate(
1909	wpa_s, WLAN_REASON_INVALID_IE);
1910	return -1;
1911	}
1912	}
1913
1914	p = data->assoc_info.resp_ies;
1915	l = data->assoc_info.resp_ies_len;
1916
1917	#ifdef CONFIG_WPS_STRICT
1918	if (p && wpa_s->current_ssid &&
1919	wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1920	struct wpabuf *wps;
1921	wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1922	if (wps == NULL) {
1923	wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1924	"include WPS IE in (Re)Association Response");
1925	return -1;
1926	}
1927
1928	if (wps_validate_assoc_resp(wps) < 0) {
1929	wpabuf_free(wps);
1930	wpa_supplicant_deauthenticate(
1931	wpa_s, WLAN_REASON_INVALID_IE);
1932	return -1;
1933	}
1934	wpabuf_free(wps);
1935	}
1936	#endif /* CONFIG_WPS_STRICT */
1937
1938	/* Go through the IEs and make a copy of the MDIE, if present. */
1939	while (p && l >= 2) {
1940	len = p[1] + 2;
1941	if (len > l) {
1942	wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1943	p, l);
1944	break;
1945	}
1946	if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1947	p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1948	wpa_s->sme.ft_used = 1;
1949	os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1950	MOBILITY_DOMAIN_ID_LEN);
1951	break;
1952	}
1953	l -= len;
1954	p += len;
1955	}
1956	#endif /* CONFIG_SME */
1957
1958	/* Process FT when SME is in the driver */
1959	if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
1960	wpa_ft_is_completed(wpa_s->wpa)) {
1961	if (wpa_drv_get_bssid(wpa_s, bssid) < 0 \|\|
1962	wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1963	data->assoc_info.resp_ies,
1964	data->assoc_info.resp_ies_len,
1965	bssid) < 0) {
1966	wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1967	"Reassociation Response failed");
1968	wpa_supplicant_deauthenticate(
1969	wpa_s, WLAN_REASON_INVALID_IE);
1970	return -1;
1971	}
1972	wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
1973	}
1974
1975	wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1976	data->assoc_info.resp_ies_len);
1977	#endif /* CONFIG_IEEE80211R */
1978
1979	/* WPA/RSN IE from Beacon/ProbeResp */
1980	p = data->assoc_info.beacon_ies;
1981	l = data->assoc_info.beacon_ies_len;
1982
1983	/* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1984	*/
1985	wpa_found = rsn_found = 0;
1986	while (p && l >= 2) {
1987	len = p[1] + 2;
1988	if (len > l) {
1989	wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1990	p, l);
1991	break;
1992	}
1993	if (!wpa_found &&
1994	p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1995	os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1996	wpa_found = 1;
1997	wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1998	}
1999
2000	if (!rsn_found &&
2001	p[0] == WLAN_EID_RSN && p[1] >= 2) {
2002	rsn_found = 1;
2003	wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
2004	}
2005
2006	l -= len;
2007	p += len;
2008	}
2009
2010	if (!wpa_found && data->assoc_info.beacon_ies)
2011	wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
2012	if (!rsn_found && data->assoc_info.beacon_ies)
2013	wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
2014	if (wpa_found \|\| rsn_found)
2015	wpa_s->ap_ies_from_associnfo = 1;
2016
2017	#ifdef CONFIG_FST
2018	wpabuf_free(wpa_s->received_mb_ies);
2019	wpa_s->received_mb_ies = NULL;
2020	if (wpa_s->fst) {
2021	struct mb_ies_info mb_ies;
2022
2023	wpa_printf(MSG_DEBUG, "Looking for MB IE");
2024	if (!mb_ies_info_by_ies(&mb_ies, data->assoc_info.resp_ies,
2025	data->assoc_info.resp_ies_len))
2026	wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
2027	}
2028	#endif /* CONFIG_FST */
2029
2030	if (wpa_s->assoc_freq && data->assoc_info.freq &&
2031	wpa_s->assoc_freq != data->assoc_info.freq) {
2032	wpa_printf(MSG_DEBUG, "Operating frequency changed from "
2033	"%u to %u MHz",
2034	wpa_s->assoc_freq, data->assoc_info.freq);
2035	wpa_supplicant_update_scan_results(wpa_s);
2036	}
2037
2038	wpa_s->assoc_freq = data->assoc_info.freq;
2039
2040	return 0;
2041	}
2042
2043
2044	static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
2045	{
2046	const u8 bss_wpa = NULL, bss_rsn = NULL;
2047
2048	if (!wpa_s->current_bss \|\| !wpa_s->current_ssid)
2049	return -1;
2050
2051	if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
2052	return 0;
2053
2054	bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
2055	WPA_IE_VENDOR_TYPE);
2056	bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
2057
2058	if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
2059	bss_wpa ? 2 + bss_wpa[1] : 0) \|\|
2060	wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
2061	bss_rsn ? 2 + bss_rsn[1] : 0))
2062	return -1;
2063
2064	return 0;
2065	}
2066
2067
2068	static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
2069	union wpa_event_data *data)
2070	{
2071	u8 bssid[ETH_ALEN];
2072	int ft_completed;
2073	int new_bss = 0;
2074
2075	#ifdef CONFIG_AP
2076	if (wpa_s->ap_iface) {
2077	if (!data)
2078	return;
2079	hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
2080	data->assoc_info.addr,
2081	data->assoc_info.req_ies,
2082	data->assoc_info.req_ies_len,
2083	data->assoc_info.reassoc);
2084	return;
2085	}
2086	#endif /* CONFIG_AP */
2087
2088	eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2089
2090	ft_completed = wpa_ft_is_completed(wpa_s->wpa);
2091	if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
2092	return;
2093
2094	if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
2095	wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
2096	wpa_supplicant_deauthenticate(
2097	wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2098	return;
2099	}
2100
2101	wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
2102	if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
2103	wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
2104	MACSTR, MAC2STR(bssid));
2105	new_bss = 1;
2106	random_add_randomness(bssid, ETH_ALEN);
2107	os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
2108	os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2109	wpas_notify_bssid_changed(wpa_s);
2110
2111	if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
2112	wpa_clear_keys(wpa_s, bssid);
2113	}
2114	if (wpa_supplicant_select_config(wpa_s) < 0) {
2115	wpa_supplicant_deauthenticate(
2116	wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2117	return;
2118	}
2119	}
2120
2121	if (wpa_s->conf->ap_scan == 1 &&
2122	wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
2123	if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
2124	wpa_msg(wpa_s, MSG_WARNING,
2125	"WPA/RSN IEs not updated");
2126	}
2127
2128	#ifdef CONFIG_SME
2129	os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
2130	wpa_s->sme.prev_bssid_set = 1;
2131	wpa_s->sme.last_unprot_disconnect.sec = 0;
2132	#endif /* CONFIG_SME */
2133
2134	wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
2135	if (wpa_s->current_ssid) {
2136	/* When using scanning (ap_scan=1), SIM PC/SC interface can be
2137	* initialized before association, but for other modes,
2138	* initialize PC/SC here, if the current configuration needs
2139	* smartcard or SIM/USIM. */
2140	wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
2141	}
2142	wpa_sm_notify_assoc(wpa_s->wpa, bssid);
2143	if (wpa_s->l2)
2144	l2_packet_notify_auth_start(wpa_s->l2);
2145
2146	/*
2147	* Set portEnabled first to FALSE in order to get EAP state machine out
2148	* of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
2149	* state machine may transit to AUTHENTICATING state based on obsolete
2150	* eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
2151	* AUTHENTICATED without ever giving chance to EAP state machine to
2152	* reset the state.
2153	*/
2154	if (!ft_completed) {
2155	eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
2156	eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
2157	}
2158	if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) \|\| ft_completed)
2159	eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
2160	/* 802.1X::portControl = Auto */
2161	eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
2162	wpa_s->eapol_received = 0;
2163	if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE \|\|
2164	wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE \|\|
2165	(wpa_s->current_ssid &&
2166	wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
2167	if (wpa_s->current_ssid &&
2168	wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
2169	(wpa_s->drv_flags &
2170	WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2171	/*
2172	* Set the key after having received joined-IBSS event
2173	* from the driver.
2174	*/
2175	wpa_supplicant_set_wpa_none_key(wpa_s,
2176	wpa_s->current_ssid);
2177	}
2178	wpa_supplicant_cancel_auth_timeout(wpa_s);
2179	wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2180	} else if (!ft_completed) {
2181	/* Timeout for receiving the first EAPOL packet */
2182	wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
2183	}
2184	wpa_supplicant_cancel_scan(wpa_s);
2185
2186	if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2187	wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
2188	/*
2189	* We are done; the driver will take care of RSN 4-way
2190	* handshake.
2191	*/
2192	wpa_supplicant_cancel_auth_timeout(wpa_s);
2193	wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2194	eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2195	eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2196	} else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2197	wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
2198	/*
2199	* The driver will take care of RSN 4-way handshake, so we need
2200	* to allow EAPOL supplicant to complete its work without
2201	* waiting for WPA supplicant.
2202	*/
2203	eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2204	} else if (ft_completed) {
2205	/*
2206	* FT protocol completed - make sure EAPOL state machine ends
2207	* up in authenticated.
2208	*/
2209	wpa_supplicant_cancel_auth_timeout(wpa_s);
2210	wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2211	eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2212	eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2213	}
2214
2215	wpa_s->last_eapol_matches_bssid = 0;
2216
2217	if (wpa_s->pending_eapol_rx) {
2218	struct os_reltime now, age;
2219	os_get_reltime(&now);
2220	os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
2221	if (age.sec == 0 && age.usec < 100000 &&
2222	os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2223	0) {
2224	wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2225	"frame that was received just before "
2226	"association notification");
2227	wpa_supplicant_rx_eapol(
2228	wpa_s, wpa_s->pending_eapol_rx_src,
2229	wpabuf_head(wpa_s->pending_eapol_rx),
2230	wpabuf_len(wpa_s->pending_eapol_rx));
2231	}
2232	wpabuf_free(wpa_s->pending_eapol_rx);
2233	wpa_s->pending_eapol_rx = NULL;
2234	}
2235
2236	if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE \|\|
2237	wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
2238	wpa_s->current_ssid &&
2239	(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2240	/* Set static WEP keys again */
2241	wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2242	}
2243
2244	#ifdef CONFIG_IBSS_RSN
2245	if (wpa_s->current_ssid &&
2246	wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2247	wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2248	wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2249	wpa_s->ibss_rsn == NULL) {
2250	wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2251	if (!wpa_s->ibss_rsn) {
2252	wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2253	wpa_supplicant_deauthenticate(
2254	wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2255	return;
2256	}
2257
2258	ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2259	}
2260	#endif /* CONFIG_IBSS_RSN */
2261
2262	wpas_wps_notify_assoc(wpa_s, bssid);
2263
2264	if (data) {
2265	wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2266	data->assoc_info.resp_ies_len,
2267	&data->assoc_info.wmm_params);
2268
2269	if (wpa_s->reassoc_same_bss)
2270	wmm_ac_restore_tspecs(wpa_s);
2271	}
2272	}
2273
2274
2275	static int disconnect_reason_recoverable(u16 reason_code)
2276	{
2277	return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY \|\|
2278	reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA \|\|
2279	reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2280	}
2281
2282
2283	static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
2284	u16 reason_code,
2285	int locally_generated)
2286	{
2287	const u8 *bssid;
2288
2289	if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2290	/*
2291	* At least Host AP driver and a Prism3 card seemed to be
2292	* generating streams of disconnected events when configuring
2293	* IBSS for WPA-None. Ignore them for now.
2294	*/
2295	return;
2296	}
2297
2298	bssid = wpa_s->bssid;
2299	if (is_zero_ether_addr(bssid))
2300	bssid = wpa_s->pending_bssid;
2301
2302	if (!is_zero_ether_addr(bssid) \|\|
2303	wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2304	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2305	" reason=%d%s",
2306	MAC2STR(bssid), reason_code,
2307	locally_generated ? " locally_generated=1" : "");
2308	}
2309	}
2310
2311
2312	static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2313	int locally_generated)
2314	{
2315	if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE \|\|
2316	!wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2317	return 0; /* Not in 4-way handshake with PSK */
2318
2319	/*
2320	* It looks like connection was lost while trying to go through PSK
2321	* 4-way handshake. Filter out known disconnection cases that are caused
2322	* by something else than PSK mismatch to avoid confusing reports.
2323	*/
2324
2325	if (locally_generated) {
2326	if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2327	return 0;
2328	}
2329
2330	return 1;
2331	}
2332
2333
2334	static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2335	u16 reason_code,
2336	int locally_generated)
2337	{
2338	const u8 *bssid;
2339	int authenticating;
2340	u8 prev_pending_bssid[ETH_ALEN];
2341	struct wpa_bss *fast_reconnect = NULL;
2342	struct wpa_ssid *fast_reconnect_ssid = NULL;
2343	struct wpa_ssid *last_ssid;
2344
2345	authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2346	os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
2347
2348	if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2349	/*
2350	* At least Host AP driver and a Prism3 card seemed to be
2351	* generating streams of disconnected events when configuring
2352	* IBSS for WPA-None. Ignore them for now.
2353	*/
2354	wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2355	"IBSS/WPA-None mode");
2356	return;
2357	}
2358
2359	if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
2360	wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2361	"pre-shared key may be incorrect");
2362	if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2363	return; /* P2P group removed */
2364	wpas_auth_failed(wpa_s, "WRONG_KEY");
2365	}
2366	if (!wpa_s->disconnected &&
2367	(!wpa_s->auto_reconnect_disabled \|\|
2368	wpa_s->key_mgmt == WPA_KEY_MGMT_WPS \|\|
2369	wpas_wps_searching(wpa_s))) {
2370	wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
2371	"reconnect (wps=%d/%d wpa_state=%d)",
2372	wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2373	wpas_wps_searching(wpa_s),
2374	wpa_s->wpa_state);
2375	if (wpa_s->wpa_state == WPA_COMPLETED &&
2376	wpa_s->current_ssid &&
2377	wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
2378	!locally_generated &&
2379	disconnect_reason_recoverable(reason_code)) {
2380	/*
2381	* It looks like the AP has dropped association with
2382	* us, but could allow us to get back in. Try to
2383	* reconnect to the same BSS without full scan to save
2384	* time for some common cases.
2385	*/
2386	fast_reconnect = wpa_s->current_bss;
2387	fast_reconnect_ssid = wpa_s->current_ssid;
2388	} else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
2389	wpa_supplicant_req_scan(wpa_s, 0, 100000);
2390	else
2391	wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2392	"immediate scan");
2393	} else {
2394	wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
2395	"try to re-connect");
2396	wpa_s->reassociate = 0;
2397	wpa_s->disconnected = 1;
2398	if (!wpa_s->pno)
2399	wpa_supplicant_cancel_sched_scan(wpa_s);
2400	}
2401	bssid = wpa_s->bssid;
2402	if (is_zero_ether_addr(bssid))
2403	bssid = wpa_s->pending_bssid;
2404	if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2405	wpas_connection_failed(wpa_s, bssid);
2406	wpa_sm_notify_disassoc(wpa_s->wpa);
2407	if (locally_generated)
2408	wpa_s->disconnect_reason = -reason_code;
2409	else
2410	wpa_s->disconnect_reason = reason_code;
2411	wpas_notify_disconnect_reason(wpa_s);
2412	if (wpa_supplicant_dynamic_keys(wpa_s)) {
2413	wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
2414	wpa_clear_keys(wpa_s, wpa_s->bssid);
2415	}
2416	last_ssid = wpa_s->current_ssid;
2417	wpa_supplicant_mark_disassoc(wpa_s);
2418
2419	if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2420	sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2421	wpa_s->current_ssid = last_ssid;
2422	}
2423
2424	if (fast_reconnect &&
2425	!wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2426	!disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2427	!disallowed_ssid(wpa_s, fast_reconnect->ssid,
2428	fast_reconnect->ssid_len) &&
2429	!wpas_temp_disabled(wpa_s, fast_reconnect_ssid)) {
2430	#ifndef CONFIG_NO_SCAN_PROCESSING
2431	wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2432	if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2433	fast_reconnect_ssid) < 0) {
2434	/* Recover through full scan */
2435	wpa_supplicant_req_scan(wpa_s, 0, 100000);
2436	}
2437	#endif /* CONFIG_NO_SCAN_PROCESSING */
2438	} else if (fast_reconnect) {
2439	/*
2440	* Could not reconnect to the same BSS due to network being
2441	* disabled. Use a new scan to match the alternative behavior
2442	* above, i.e., to continue automatic reconnection attempt in a
2443	* way that enforces disabled network rules.
2444	*/
2445	wpa_supplicant_req_scan(wpa_s, 0, 100000);
2446	}
2447	}
2448
2449
2450	#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2451	void wpa_supplicant_delayed_mic_error_report(void eloop_ctx, void sock_ctx)
2452	{
2453	struct wpa_supplicant *wpa_s = eloop_ctx;
2454
2455	if (!wpa_s->pending_mic_error_report)
2456	return;
2457
2458	wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2459	wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2460	wpa_s->pending_mic_error_report = 0;
2461	}
2462	#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2463
2464
2465	static void
2466	wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2467	union wpa_event_data *data)
2468	{
2469	int pairwise;
2470	struct os_reltime t;
2471
2472	wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2473	pairwise = (data && data->michael_mic_failure.unicast);
2474	os_get_reltime(&t);
2475	if ((wpa_s->last_michael_mic_error.sec &&
2476	!os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) \|\|
2477	wpa_s->pending_mic_error_report) {
2478	if (wpa_s->pending_mic_error_report) {
2479	/*
2480	* Send the pending MIC error report immediately since
2481	* we are going to start countermeasures and AP better
2482	* do the same.
2483	*/
2484	wpa_sm_key_request(wpa_s->wpa, 1,
2485	wpa_s->pending_mic_error_pairwise);
2486	}
2487
2488	/* Send the new MIC error report immediately since we are going
2489	* to start countermeasures and AP better do the same.
2490	*/
2491	wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2492
2493	/* initialize countermeasures */
2494	wpa_s->countermeasures = 1;
2495
2496	wpa_blacklist_add(wpa_s, wpa_s->bssid);
2497
2498	wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2499
2500	/*
2501	* Need to wait for completion of request frame. We do not get
2502	* any callback for the message completion, so just wait a
2503	* short while and hope for the best. */
2504	os_sleep(0, 10000);
2505
2506	wpa_drv_set_countermeasures(wpa_s, 1);
2507	wpa_supplicant_deauthenticate(wpa_s,
2508	WLAN_REASON_MICHAEL_MIC_FAILURE);
2509	eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2510	wpa_s, NULL);
2511	eloop_register_timeout(60, 0,
2512	wpa_supplicant_stop_countermeasures,
2513	wpa_s, NULL);
2514	/* TODO: mark the AP rejected for 60 second. STA is
2515	* allowed to associate with another AP.. */
2516	} else {
2517	#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2518	if (wpa_s->mic_errors_seen) {
2519	/*
2520	* Reduce the effectiveness of Michael MIC error
2521	* reports as a means for attacking against TKIP if
2522	* more than one MIC failure is noticed with the same
2523	* PTK. We delay the transmission of the reports by a
2524	* random time between 0 and 60 seconds in order to
2525	* force the attacker wait 60 seconds before getting
2526	* the information on whether a frame resulted in a MIC
2527	* failure.
2528	*/
2529	u8 rval[4];
2530	int sec;
2531
2532	if (os_get_random(rval, sizeof(rval)) < 0)
2533	sec = os_random() % 60;
2534	else
2535	sec = WPA_GET_BE32(rval) % 60;
2536	wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2537	"report %d seconds", sec);
2538	wpa_s->pending_mic_error_report = 1;
2539	wpa_s->pending_mic_error_pairwise = pairwise;
2540	eloop_cancel_timeout(
2541	wpa_supplicant_delayed_mic_error_report,
2542	wpa_s, NULL);
2543	eloop_register_timeout(
2544	sec, os_random() % 1000000,
2545	wpa_supplicant_delayed_mic_error_report,
2546	wpa_s, NULL);
2547	} else {
2548	wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2549	}
2550	#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2551	wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2552	#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2553	}
2554	wpa_s->last_michael_mic_error = t;
2555	wpa_s->mic_errors_seen++;
2556	}
2557
2558
2559	#ifdef CONFIG_TERMINATE_ONLASTIF
2560	static int any_interfaces(struct wpa_supplicant *head)
2561	{
2562	struct wpa_supplicant *wpa_s;
2563
2564	for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2565	if (!wpa_s->interface_removed)
2566	return 1;
2567	return 0;
2568	}
2569	#endif /* CONFIG_TERMINATE_ONLASTIF */
2570
2571
2572	static void
2573	wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2574	union wpa_event_data *data)
2575	{
2576	if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2577	return;
2578
2579	switch (data->interface_status.ievent) {
2580	case EVENT_INTERFACE_ADDED:
2581	if (!wpa_s->interface_removed)
2582	break;
2583	wpa_s->interface_removed = 0;
2584	wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2585	if (wpa_supplicant_driver_init(wpa_s) < 0) {
2586	wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2587	"driver after interface was added");
2588	}
2589
2590	#ifdef CONFIG_P2P
2591	if (!wpa_s->global->p2p &&
2592	!wpa_s->global->p2p_disabled &&
2593	!wpa_s->conf->p2p_disabled &&
2594	(wpa_s->drv_flags &
2595	WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
2596	wpas_p2p_add_p2pdev_interface(
2597	wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
2598	wpa_printf(MSG_INFO,
2599	"P2P: Failed to enable P2P Device interface");
2600	/* Try to continue without. P2P will be disabled. */
2601	}
2602	#endif /* CONFIG_P2P */
2603
2604	break;
2605	case EVENT_INTERFACE_REMOVED:
2606	wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2607	wpa_s->interface_removed = 1;
2608	wpa_supplicant_mark_disassoc(wpa_s);
2609	wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2610	l2_packet_deinit(wpa_s->l2);
2611	wpa_s->l2 = NULL;
2612
2613	#ifdef CONFIG_P2P
2614	if (wpa_s->global->p2p &&
2615	wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
2616	(wpa_s->drv_flags &
2617	WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
2618	wpa_dbg(wpa_s, MSG_DEBUG,
2619	"Removing P2P Device interface");
2620	wpa_supplicant_remove_iface(
2621	wpa_s->global, wpa_s->global->p2p_init_wpa_s,
2622	0);
2623	wpa_s->global->p2p_init_wpa_s = NULL;
2624	}
2625	#endif /* CONFIG_P2P */
2626
2627	#ifdef CONFIG_TERMINATE_ONLASTIF
2628	/* check if last interface */
2629	if (!any_interfaces(wpa_s->global->ifaces))
2630	eloop_terminate();
2631	#endif /* CONFIG_TERMINATE_ONLASTIF */
2632	break;
2633	}
2634	}
2635
2636
2637	#ifdef CONFIG_PEERKEY
2638	static void
2639	wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2640	union wpa_event_data *data)
2641	{
2642	if (data == NULL)
2643	return;
2644	wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2645	}
2646	#endif /* CONFIG_PEERKEY */
2647
2648
2649	#ifdef CONFIG_TDLS
2650	static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2651	union wpa_event_data *data)
2652	{
2653	if (data == NULL)
2654	return;
2655	switch (data->tdls.oper) {
2656	case TDLS_REQUEST_SETUP:
2657	wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2658	if (wpa_tdls_is_external_setup(wpa_s->wpa))
2659	wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2660	else
2661	wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2662	break;
2663	case TDLS_REQUEST_TEARDOWN:
2664	if (wpa_tdls_is_external_setup(wpa_s->wpa))
2665	wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2666	data->tdls.reason_code);
2667	else
2668	wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2669	data->tdls.peer);
2670	break;
2671	case TDLS_REQUEST_DISCOVER:
2672	wpa_tdls_send_discovery_request(wpa_s->wpa,
2673	data->tdls.peer);
2674	break;
2675	}
2676	}
2677	#endif /* CONFIG_TDLS */
2678
2679
2680	#ifdef CONFIG_WNM
2681	static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2682	union wpa_event_data *data)
2683	{
2684	if (data == NULL)
2685	return;
2686	switch (data->wnm.oper) {
2687	case WNM_OPER_SLEEP:
2688	wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2689	"(action=%d, intval=%d)",
2690	data->wnm.sleep_action, data->wnm.sleep_intval);
2691	ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2692	data->wnm.sleep_intval, NULL);
2693	break;
2694	}
2695	}
2696	#endif /* CONFIG_WNM */
2697
2698
2699	#ifdef CONFIG_IEEE80211R
2700	static void
2701	wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2702	union wpa_event_data *data)
2703	{
2704	if (data == NULL)
2705	return;
2706
2707	if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2708	data->ft_ies.ies_len,
2709	data->ft_ies.ft_action,
2710	data->ft_ies.target_ap,
2711	data->ft_ies.ric_ies,
2712	data->ft_ies.ric_ies_len) < 0) {
2713	/* TODO: prevent MLME/driver from trying to associate? */
2714	}
2715	}
2716	#endif /* CONFIG_IEEE80211R */
2717
2718
2719	#ifdef CONFIG_IBSS_RSN
2720	static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2721	union wpa_event_data *data)
2722	{
2723	struct wpa_ssid *ssid;
2724	if (wpa_s->wpa_state < WPA_ASSOCIATED)
2725	return;
2726	if (data == NULL)
2727	return;
2728	ssid = wpa_s->current_ssid;
2729	if (ssid == NULL)
2730	return;
2731	if (ssid->mode != WPAS_MODE_IBSS \|\| !wpa_key_mgmt_wpa(ssid->key_mgmt))
2732	return;
2733
2734	ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2735	}
2736
2737
2738	static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2739	union wpa_event_data *data)
2740	{
2741	struct wpa_ssid *ssid = wpa_s->current_ssid;
2742
2743	if (ssid == NULL)
2744	return;
2745
2746	/* check if the ssid is correctly configured as IBSS/RSN */
2747	if (ssid->mode != WPAS_MODE_IBSS \|\| !wpa_key_mgmt_wpa(ssid->key_mgmt))
2748	return;
2749
2750	ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2751	data->rx_mgmt.frame_len);
2752	}
2753	#endif /* CONFIG_IBSS_RSN */
2754
2755
2756	#ifdef CONFIG_IEEE80211R
2757	static void ft_rx_action(struct wpa_supplicant wpa_s, const u8 data,
2758	size_t len)
2759	{
2760	const u8 sta_addr, target_ap_addr;
2761	u16 status;
2762
2763	wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2764	if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2765	return; /* only SME case supported for now */
2766	if (len < 1 + 2 * ETH_ALEN + 2)
2767	return;
2768	if (data[0] != 2)
2769	return; /* Only FT Action Response is supported for now */
2770	sta_addr = data + 1;
2771	target_ap_addr = data + 1 + ETH_ALEN;
2772	status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2773	wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2774	MACSTR " TargetAP " MACSTR " status %u",
2775	MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2776
2777	if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2778	wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2779	" in FT Action Response", MAC2STR(sta_addr));
2780	return;
2781	}
2782
2783	if (status) {
2784	wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2785	"failure (status code %d)", status);
2786	/* TODO: report error to FT code(?) */
2787	return;
2788	}
2789
2790	if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2791	len - (1 + 2 * ETH_ALEN + 2), 1,
2792	target_ap_addr, NULL, 0) < 0)
2793	return;
2794
2795	#ifdef CONFIG_SME
2796	{
2797	struct wpa_bss *bss;
2798	bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2799	if (bss)
2800	wpa_s->sme.freq = bss->freq;
2801	wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2802	sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2803	WLAN_AUTH_FT);
2804	}
2805	#endif /* CONFIG_SME */
2806	}
2807	#endif /* CONFIG_IEEE80211R */
2808
2809
2810	static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2811	struct unprot_deauth *e)
2812	{
2813	#ifdef CONFIG_IEEE80211W
2814	wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2815	"dropped: " MACSTR " -> " MACSTR
2816	" (reason code %u)",
2817	MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2818	sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2819	#endif /* CONFIG_IEEE80211W */
2820	}
2821
2822
2823	static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2824	struct unprot_disassoc *e)
2825	{
2826	#ifdef CONFIG_IEEE80211W
2827	wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2828	"dropped: " MACSTR " -> " MACSTR
2829	" (reason code %u)",
2830	MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2831	sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2832	#endif /* CONFIG_IEEE80211W */
2833	}
2834
2835
2836	static void wpas_event_disconnect(struct wpa_supplicant wpa_s, const u8 addr,
2837	u16 reason_code, int locally_generated,
2838	const u8 *ie, size_t ie_len, int deauth)
2839	{
2840	#ifdef CONFIG_AP
2841	if (wpa_s->ap_iface && addr) {
2842	hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
2843	return;
2844	}
2845
2846	if (wpa_s->ap_iface) {
2847	wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
2848	return;
2849	}
2850	#endif /* CONFIG_AP */
2851
2852	if (!locally_generated)
2853	wpa_s->own_disconnect_req = 0;
2854
2855	wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
2856
2857	if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED \|\|
2858	((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) \|\|
2859	(wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
2860	eapol_sm_failed(wpa_s->eapol))) &&
2861	!wpa_s->eap_expected_failure))
2862	wpas_auth_failed(wpa_s, "AUTH_FAILED");
2863
2864	#ifdef CONFIG_P2P
2865	if (deauth && reason_code > 0) {
2866	if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
2867	locally_generated) > 0) {
2868	/*
2869	* The interface was removed, so cannot continue
2870	* processing any additional operations after this.
2871	*/
2872	return;
2873	}
2874	}
2875	#endif /* CONFIG_P2P */
2876
2877	wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
2878	locally_generated);
2879	}
2880
2881
2882	static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
2883	struct disassoc_info *info)
2884	{
2885	u16 reason_code = 0;
2886	int locally_generated = 0;
2887	const u8 *addr = NULL;
2888	const u8 *ie = NULL;
2889	size_t ie_len = 0;
2890
2891	wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2892
2893	if (info) {
2894	addr = info->addr;
2895	ie = info->ie;
2896	ie_len = info->ie_len;
2897	reason_code = info->reason_code;
2898	locally_generated = info->locally_generated;
2899	wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
2900	locally_generated ? " (locally generated)" : "");
2901	if (addr)
2902	wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2903	MAC2STR(addr));
2904	wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2905	ie, ie_len);
2906	}
2907
2908	#ifdef CONFIG_AP
2909	if (wpa_s->ap_iface && info && info->addr) {
2910	hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
2911	return;
2912	}
2913
2914	if (wpa_s->ap_iface) {
2915	wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
2916	return;
2917	}
2918	#endif /* CONFIG_AP */
2919
2920	#ifdef CONFIG_P2P
2921	if (info) {
2922	wpas_p2p_disassoc_notif(
2923	wpa_s, info->addr, reason_code, info->ie, info->ie_len,
2924	locally_generated);
2925	}
2926	#endif /* CONFIG_P2P */
2927
2928	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2929	sme_event_disassoc(wpa_s, info);
2930
2931	wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
2932	ie, ie_len, 0);
2933	}
2934
2935
2936	static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
2937	struct deauth_info *info)
2938	{
2939	u16 reason_code = 0;
2940	int locally_generated = 0;
2941	const u8 *addr = NULL;
2942	const u8 *ie = NULL;
2943	size_t ie_len = 0;
2944
2945	wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
2946
2947	if (info) {
2948	addr = info->addr;
2949	ie = info->ie;
2950	ie_len = info->ie_len;
2951	reason_code = info->reason_code;
2952	locally_generated = info->locally_generated;
2953	wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2954	reason_code,
2955	locally_generated ? " (locally generated)" : "");
2956	if (addr) {
2957	wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2958	MAC2STR(addr));
2959	}
2960	wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
2961	ie, ie_len);
2962	}
2963
2964	wpa_reset_ft_completed(wpa_s->wpa);
2965
2966	wpas_event_disconnect(wpa_s, addr, reason_code,
2967	locally_generated, ie, ie_len, 1);
2968	}
2969
2970
2971	static const char * reg_init_str(enum reg_change_initiator init)
2972	{
2973	switch (init) {
2974	case REGDOM_SET_BY_CORE:
2975	return "CORE";
2976	case REGDOM_SET_BY_USER:
2977	return "USER";
2978	case REGDOM_SET_BY_DRIVER:
2979	return "DRIVER";
2980	case REGDOM_SET_BY_COUNTRY_IE:
2981	return "COUNTRY_IE";
2982	case REGDOM_BEACON_HINT:
2983	return "BEACON_HINT";
2984	}
2985	return "?";
2986	}
2987
2988
2989	static const char * reg_type_str(enum reg_type type)
2990	{
2991	switch (type) {
2992	case REGDOM_TYPE_UNKNOWN:
2993	return "UNKNOWN";
2994	case REGDOM_TYPE_COUNTRY:
2995	return "COUNTRY";
2996	case REGDOM_TYPE_WORLD:
2997	return "WORLD";
2998	case REGDOM_TYPE_CUSTOM_WORLD:
2999	return "CUSTOM_WORLD";
3000	case REGDOM_TYPE_INTERSECTION:
3001	return "INTERSECTION";
3002	}
3003	return "?";
3004	}
3005
3006
3007	static void wpa_supplicant_update_channel_list(
3008	struct wpa_supplicant wpa_s, struct channel_list_changed info)
3009	{
3010	struct wpa_supplicant *ifs;
3011
3012	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
3013	reg_init_str(info->initiator), reg_type_str(info->type),
3014	info->alpha2[0] ? " alpha2=" : "",
3015	info->alpha2[0] ? info->alpha2 : "");
3016
3017	if (wpa_s->drv_priv == NULL)
3018	return; /* Ignore event during drv initialization */
3019
3020	dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
3021	radio_list) {
3022	wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
3023	ifs->ifname);
3024	free_hw_features(ifs);
3025	ifs->hw.modes = wpa_drv_get_hw_feature_data(
3026	ifs, &ifs->hw.num_modes, &ifs->hw.flags);
3027	}
3028
3029	/* Restart sched_scan with updated channel list */
3030	if (wpa_s->sched_scanning) {
3031	wpa_dbg(wpa_s, MSG_DEBUG,
3032	"Channel list changed restart sched scan.");
3033	wpa_supplicant_cancel_sched_scan(wpa_s);
3034	wpa_supplicant_req_scan(wpa_s, 0, 0);
3035	}
3036
3037	wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
3038	}
3039
3040
3041	static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
3042	const u8 *frame, size_t len, int freq,
3043	int rssi)
3044	{
3045	const struct ieee80211_mgmt *mgmt;
3046	const u8 *payload;
3047	size_t plen;
3048	u8 category;
3049
3050	if (len < IEEE80211_HDRLEN + 2)
3051	return;
3052
3053	mgmt = (const struct ieee80211_mgmt *) frame;
3054	payload = frame + IEEE80211_HDRLEN;
3055	category = *payload++;
3056	plen = len - IEEE80211_HDRLEN - 1;
3057
3058	wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
3059	" Category=%u DataLen=%d freq=%d MHz",
3060	MAC2STR(mgmt->sa), category, (int) plen, freq);
3061
3062	if (category == WLAN_ACTION_WMM) {
3063	wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
3064	return;
3065	}
3066
3067	#ifdef CONFIG_IEEE80211R
3068	if (category == WLAN_ACTION_FT) {
3069	ft_rx_action(wpa_s, payload, plen);
3070	return;
3071	}
3072	#endif /* CONFIG_IEEE80211R */
3073
3074	#ifdef CONFIG_IEEE80211W
3075	#ifdef CONFIG_SME
3076	if (category == WLAN_ACTION_SA_QUERY) {
3077	sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
3078	return;
3079	}
3080	#endif /* CONFIG_SME */
3081	#endif /* CONFIG_IEEE80211W */
3082
3083	#ifdef CONFIG_WNM
3084	if (mgmt->u.action.category == WLAN_ACTION_WNM) {
3085	ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
3086	return;
3087	}
3088	#endif /* CONFIG_WNM */
3089
3090	#ifdef CONFIG_GAS
3091	if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC \|\|
3092	mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
3093	gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
3094	mgmt->u.action.category,
3095	payload, plen, freq) == 0)
3096	return;
3097	#endif /* CONFIG_GAS */
3098
3099	#ifdef CONFIG_TDLS
3100	if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
3101	payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
3102	wpa_dbg(wpa_s, MSG_DEBUG,
3103	"TDLS: Received Discovery Response from " MACSTR,
3104	MAC2STR(mgmt->sa));
3105	return;
3106	}
3107	#endif /* CONFIG_TDLS */
3108
3109	#ifdef CONFIG_INTERWORKING
3110	if (category == WLAN_ACTION_QOS && plen >= 1 &&
3111	payload[0] == QOS_QOS_MAP_CONFIG) {
3112	const u8 *pos = payload + 1;
3113	size_t qlen = plen - 1;
3114	wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
3115	MACSTR, MAC2STR(mgmt->sa));
3116	if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
3117	qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
3118	pos[1] <= qlen - 2 && pos[1] >= 16)
3119	wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
3120	return;
3121	}
3122	#endif /* CONFIG_INTERWORKING */
3123
3124	if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3125	payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
3126	wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
3127	return;
3128	}
3129
3130	if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3131	payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
3132	wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
3133	payload + 1, plen - 1,
3134	rssi);
3135	return;
3136	}
3137
3138	#ifdef CONFIG_FST
3139	if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
3140	fst_rx_action(wpa_s->fst, mgmt, len);
3141	return;
3142	}
3143	#endif /* CONFIG_FST */
3144
3145	wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
3146	category, payload, plen, freq);
3147	if (wpa_s->ifmsh)
3148	mesh_mpm_action_rx(wpa_s, mgmt, len);
3149	}
3150
3151
3152	static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
3153	union wpa_event_data *event)
3154	{
3155	struct wpa_freq_range_list *list;
3156	char *str = NULL;
3157
3158	list = &event->freq_range;
3159
3160	if (list->num)
3161	str = freq_range_list_str(list);
3162	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
3163	str ? str : "");
3164
3165	#ifdef CONFIG_P2P
3166	if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
3167	wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
3168	__func__);
3169	} else {
3170	wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
3171
3172	/*
3173	* The update channel flow will also take care of moving a GO
3174	* from the unsafe frequency if needed.
3175	*/
3176	wpas_p2p_update_channel_list(wpa_s,
3177	WPAS_P2P_CHANNEL_UPDATE_AVOID);
3178	}
3179	#endif /* CONFIG_P2P */
3180
3181	os_free(str);
3182	}
3183
3184
3185	static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
3186	union wpa_event_data *data)
3187	{
3188	wpa_dbg(wpa_s, MSG_DEBUG,
3189	"Connection authorized by device, previous state %d",
3190	wpa_s->wpa_state);
3191	if (wpa_s->wpa_state == WPA_ASSOCIATED) {
3192	wpa_supplicant_cancel_auth_timeout(wpa_s);
3193	wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3194	eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3195	eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
3196	}
3197	wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
3198	wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
3199	data->assoc_info.ptk_kck_len,
3200	data->assoc_info.ptk_kek,
3201	data->assoc_info.ptk_kek_len);
3202	}
3203
3204
3205	void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
3206	union wpa_event_data *data)
3207	{
3208	struct wpa_supplicant *wpa_s = ctx;
3209	int resched;
3210
3211	if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
3212	event != EVENT_INTERFACE_ENABLED &&
3213	event != EVENT_INTERFACE_STATUS &&
3214	event != EVENT_SCHED_SCAN_STOPPED) {
3215	wpa_dbg(wpa_s, MSG_DEBUG,
3216	"Ignore event %s (%d) while interface is disabled",
3217	event_to_string(event), event);
3218	return;
3219	}
3220
3221	#ifndef CONFIG_NO_STDOUT_DEBUG
3222	{
3223	int level = MSG_DEBUG;
3224
3225	if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
3226	const struct ieee80211_hdr *hdr;
3227	u16 fc;
3228	hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
3229	fc = le_to_host16(hdr->frame_control);
3230	if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3231	WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
3232	level = MSG_EXCESSIVE;
3233	}
3234
3235	wpa_dbg(wpa_s, level, "Event %s (%d) received",
3236	event_to_string(event), event);
3237	}
3238	#endif /* CONFIG_NO_STDOUT_DEBUG */
3239
3240	switch (event) {
3241	case EVENT_AUTH:
3242	sme_event_auth(wpa_s, data);
3243	break;
3244	case EVENT_ASSOC:
3245	wpa_supplicant_event_assoc(wpa_s, data);
3246	if (data && data->assoc_info.authorized)
3247	wpa_supplicant_event_assoc_auth(wpa_s, data);
3248	break;
3249	case EVENT_DISASSOC:
3250	wpas_event_disassoc(wpa_s,
3251	data ? &data->disassoc_info : NULL);
3252	break;
3253	case EVENT_DEAUTH:
3254	wpas_event_deauth(wpa_s,
3255	data ? &data->deauth_info : NULL);
3256	break;
3257	case EVENT_MICHAEL_MIC_FAILURE:
3258	wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3259	break;
3260	#ifndef CONFIG_NO_SCAN_PROCESSING
3261	case EVENT_SCAN_STARTED:
3262	os_get_reltime(&wpa_s->scan_start_time);
3263	if (wpa_s->own_scan_requested) {
3264	struct os_reltime diff;
3265
3266	os_reltime_sub(&wpa_s->scan_start_time,
3267	&wpa_s->scan_trigger_time, &diff);
3268	wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3269	diff.sec, diff.usec);
3270	wpa_s->own_scan_requested = 0;
3271	wpa_s->own_scan_running = 1;
3272	if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3273	wpa_s->manual_scan_use_id) {
3274	wpa_msg_ctrl(wpa_s, MSG_INFO,
3275	WPA_EVENT_SCAN_STARTED "id=%u",
3276	wpa_s->manual_scan_id);
3277	} else {
3278	wpa_msg_ctrl(wpa_s, MSG_INFO,
3279	WPA_EVENT_SCAN_STARTED);
3280	}
3281	} else {
3282	wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3283	wpa_s->radio->external_scan_running = 1;
3284	wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
3285	}
3286	break;
3287	case EVENT_SCAN_RESULTS:
3288	if (os_reltime_initialized(&wpa_s->scan_start_time)) {
3289	struct os_reltime now, diff;
3290	os_get_reltime(&now);
3291	os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3292	wpa_s->scan_start_time.sec = 0;
3293	wpa_s->scan_start_time.usec = 0;
3294	wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3295	diff.sec, diff.usec);
3296	}
3297	if (wpa_supplicant_event_scan_results(wpa_s, data))
3298	break; /* interface may have been removed */
3299	wpa_s->own_scan_running = 0;
3300	wpa_s->radio->external_scan_running = 0;
3301	radio_work_check_next(wpa_s);
3302	break;
3303	#endif /* CONFIG_NO_SCAN_PROCESSING */
3304	case EVENT_ASSOCINFO:
3305	wpa_supplicant_event_associnfo(wpa_s, data);
3306	break;
3307	case EVENT_INTERFACE_STATUS:
3308	wpa_supplicant_event_interface_status(wpa_s, data);
3309	break;
3310	case EVENT_PMKID_CANDIDATE:
3311	wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3312	break;
3313	#ifdef CONFIG_PEERKEY
3314	case EVENT_STKSTART:
3315	wpa_supplicant_event_stkstart(wpa_s, data);
3316	break;
3317	#endif /* CONFIG_PEERKEY */
3318	#ifdef CONFIG_TDLS
3319	case EVENT_TDLS:
3320	wpa_supplicant_event_tdls(wpa_s, data);
3321	break;
3322	#endif /* CONFIG_TDLS */
3323	#ifdef CONFIG_WNM
3324	case EVENT_WNM:
3325	wpa_supplicant_event_wnm(wpa_s, data);
3326	break;
3327	#endif /* CONFIG_WNM */
3328	#ifdef CONFIG_IEEE80211R
3329	case EVENT_FT_RESPONSE:
3330	wpa_supplicant_event_ft_response(wpa_s, data);
3331	break;
3332	#endif /* CONFIG_IEEE80211R */
3333	#ifdef CONFIG_IBSS_RSN
3334	case EVENT_IBSS_RSN_START:
3335	wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3336	break;
3337	#endif /* CONFIG_IBSS_RSN */
3338	case EVENT_ASSOC_REJECT:
3339	if (data->assoc_reject.bssid)
3340	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3341	"bssid=" MACSTR " status_code=%u",
3342	MAC2STR(data->assoc_reject.bssid),
3343	data->assoc_reject.status_code);
3344	else
3345	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3346	"status_code=%u",
3347	data->assoc_reject.status_code);
3348	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3349	sme_event_assoc_reject(wpa_s, data);
3350	else {
3351	const u8 *bssid = data->assoc_reject.bssid;
3352	if (bssid == NULL \|\| is_zero_ether_addr(bssid))
3353	bssid = wpa_s->pending_bssid;
3354	wpas_connection_failed(wpa_s, bssid);
3355	wpa_supplicant_mark_disassoc(wpa_s);
3356	}
3357	break;
3358	case EVENT_AUTH_TIMED_OUT:
3359	/* It is possible to get this event from earlier connection */
3360	if (wpa_s->current_ssid &&
3361	wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3362	wpa_dbg(wpa_s, MSG_DEBUG,
3363	"Ignore AUTH_TIMED_OUT in mesh configuration");
3364	break;
3365	}
3366	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3367	sme_event_auth_timed_out(wpa_s, data);
3368	break;
3369	case EVENT_ASSOC_TIMED_OUT:
3370	/* It is possible to get this event from earlier connection */
3371	if (wpa_s->current_ssid &&
3372	wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3373	wpa_dbg(wpa_s, MSG_DEBUG,
3374	"Ignore ASSOC_TIMED_OUT in mesh configuration");
3375	break;
3376	}
3377	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3378	sme_event_assoc_timed_out(wpa_s, data);
3379	break;
3380	case EVENT_TX_STATUS:
3381	wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3382	" type=%d stype=%d",
3383	MAC2STR(data->tx_status.dst),
3384	data->tx_status.type, data->tx_status.stype);
3385	#ifdef CONFIG_AP
3386	if (wpa_s->ap_iface == NULL) {
3387	#ifdef CONFIG_OFFCHANNEL
3388	if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3389	data->tx_status.stype == WLAN_FC_STYPE_ACTION)
3390	offchannel_send_action_tx_status(
3391	wpa_s, data->tx_status.dst,
3392	data->tx_status.data,
3393	data->tx_status.data_len,
3394	data->tx_status.ack ?
3395	OFFCHANNEL_SEND_ACTION_SUCCESS :
3396	OFFCHANNEL_SEND_ACTION_NO_ACK);
3397	#endif /* CONFIG_OFFCHANNEL */
3398	break;
3399	}
3400	#endif /* CONFIG_AP */
3401	#ifdef CONFIG_OFFCHANNEL
3402	wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3403	MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
3404	/*
3405	* Catch TX status events for Action frames we sent via group
3406	* interface in GO mode.
3407	*/
3408	if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3409	data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3410	os_memcmp(wpa_s->parent->pending_action_dst,
3411	data->tx_status.dst, ETH_ALEN) == 0) {
3412	offchannel_send_action_tx_status(
3413	wpa_s->parent, data->tx_status.dst,
3414	data->tx_status.data,
3415	data->tx_status.data_len,
3416	data->tx_status.ack ?
3417	OFFCHANNEL_SEND_ACTION_SUCCESS :
3418	OFFCHANNEL_SEND_ACTION_NO_ACK);
3419	break;
3420	}
3421	#endif /* CONFIG_OFFCHANNEL */
3422	#ifdef CONFIG_AP
3423	switch (data->tx_status.type) {
3424	case WLAN_FC_TYPE_MGMT:
3425	ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3426	data->tx_status.data_len,
3427	data->tx_status.stype,
3428	data->tx_status.ack);
3429	break;
3430	case WLAN_FC_TYPE_DATA:
3431	ap_tx_status(wpa_s, data->tx_status.dst,
3432	data->tx_status.data,
3433	data->tx_status.data_len,
3434	data->tx_status.ack);
3435	break;
3436	}
3437	#endif /* CONFIG_AP */
3438	break;
3439	#ifdef CONFIG_AP
3440	case EVENT_EAPOL_TX_STATUS:
3441	ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3442	data->eapol_tx_status.data,
3443	data->eapol_tx_status.data_len,
3444	data->eapol_tx_status.ack);
3445	break;
3446	case EVENT_DRIVER_CLIENT_POLL_OK:
3447	ap_client_poll_ok(wpa_s, data->client_poll.addr);
3448	break;
3449	case EVENT_RX_FROM_UNKNOWN:
3450	if (wpa_s->ap_iface == NULL)
3451	break;
3452	ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3453	data->rx_from_unknown.wds);
3454	break;
3455	case EVENT_CH_SWITCH:
3456	if (!data)
3457	break;
3458	if (!wpa_s->ap_iface) {
3459	wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch "
3460	"event in non-AP mode");
3461	break;
3462	}
3463
3464	wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3465	data->ch_switch.ht_enabled,
3466	data->ch_switch.ch_offset,
3467	data->ch_switch.ch_width,
3468	data->ch_switch.cf1,
3469	data->ch_switch.cf2);
3470	break;
3471	#ifdef NEED_AP_MLME
3472	case EVENT_DFS_RADAR_DETECTED:
3473	if (data)
3474	wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event);
3475	break;
3476	case EVENT_DFS_CAC_STARTED:
3477	if (data)
3478	wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
3479	break;
3480	case EVENT_DFS_CAC_FINISHED:
3481	if (data)
3482	wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
3483	break;
3484	case EVENT_DFS_CAC_ABORTED:
3485	if (data)
3486	wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
3487	break;
3488	case EVENT_DFS_NOP_FINISHED:
3489	if (data)
3490	wpas_event_dfs_cac_nop_finished(wpa_s,
3491	&data->dfs_event);
3492	break;
3493	#endif /* NEED_AP_MLME */
3494	#endif /* CONFIG_AP */
3495	case EVENT_RX_MGMT: {
3496	u16 fc, stype;
3497	const struct ieee80211_mgmt *mgmt;
3498
3499	#ifdef CONFIG_TESTING_OPTIONS
3500	if (wpa_s->ext_mgmt_frame_handling) {
3501	struct rx_mgmt *rx = &data->rx_mgmt;
3502	size_t hex_len = 2 * rx->frame_len + 1;
3503	char *hex = os_malloc(hex_len);
3504	if (hex) {
3505	wpa_snprintf_hex(hex, hex_len,
3506	rx->frame, rx->frame_len);
3507	wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3508	rx->freq, rx->datarate, rx->ssi_signal,
3509	hex);
3510	os_free(hex);
3511	}
3512	break;
3513	}
3514	#endif /* CONFIG_TESTING_OPTIONS */
3515
3516	mgmt = (const struct ieee80211_mgmt *)
3517	data->rx_mgmt.frame;
3518	fc = le_to_host16(mgmt->frame_control);
3519	stype = WLAN_FC_GET_STYPE(fc);
3520
3521	#ifdef CONFIG_AP
3522	if (wpa_s->ap_iface == NULL) {
3523	#endif /* CONFIG_AP */
3524	#ifdef CONFIG_P2P
3525	if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3526	data->rx_mgmt.frame_len > 24) {
3527	const u8 *src = mgmt->sa;
3528	const u8 *ie = mgmt->u.probe_req.variable;
3529	size_t ie_len = data->rx_mgmt.frame_len -
3530	(mgmt->u.probe_req.variable -
3531	data->rx_mgmt.frame);
3532	wpas_p2p_probe_req_rx(
3533	wpa_s, src, mgmt->da,
3534	mgmt->bssid, ie, ie_len,
3535	data->rx_mgmt.freq,
3536	data->rx_mgmt.ssi_signal);
3537	break;
3538	}
3539	#endif /* CONFIG_P2P */
3540	#ifdef CONFIG_IBSS_RSN
3541	if (wpa_s->current_ssid &&
3542	wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3543	stype == WLAN_FC_STYPE_AUTH &&
3544	data->rx_mgmt.frame_len >= 30) {
3545	wpa_supplicant_event_ibss_auth(wpa_s, data);
3546	break;
3547	}
3548	#endif /* CONFIG_IBSS_RSN */
3549
3550	if (stype == WLAN_FC_STYPE_ACTION) {
3551	wpas_event_rx_mgmt_action(
3552	wpa_s, data->rx_mgmt.frame,
3553	data->rx_mgmt.frame_len,
3554	data->rx_mgmt.freq,
3555	data->rx_mgmt.ssi_signal);
3556	break;
3557	}
3558
3559	if (wpa_s->ifmsh) {
3560	mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3561	break;
3562	}
3563
3564	wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3565	"management frame in non-AP mode");
3566	break;
3567	#ifdef CONFIG_AP
3568	}
3569
3570	if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3571	data->rx_mgmt.frame_len > 24) {
3572	const u8 *ie = mgmt->u.probe_req.variable;
3573	size_t ie_len = data->rx_mgmt.frame_len -
3574	(mgmt->u.probe_req.variable -
3575	data->rx_mgmt.frame);
3576
3577	wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3578	mgmt->bssid, ie, ie_len,
3579	data->rx_mgmt.ssi_signal);
3580	}
3581
3582	ap_mgmt_rx(wpa_s, &data->rx_mgmt);
3583	#endif /* CONFIG_AP */
3584	break;
3585	}
3586	case EVENT_RX_PROBE_REQ:
3587	if (data->rx_probe_req.sa == NULL \|\|
3588	data->rx_probe_req.ie == NULL)
3589	break;
3590	#ifdef CONFIG_AP
3591	if (wpa_s->ap_iface) {
3592	hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3593	data->rx_probe_req.sa,
3594	data->rx_probe_req.da,
3595	data->rx_probe_req.bssid,
3596	data->rx_probe_req.ie,
3597	data->rx_probe_req.ie_len,
3598	data->rx_probe_req.ssi_signal);
3599	break;
3600	}
3601	#endif /* CONFIG_AP */
3602	wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
3603	data->rx_probe_req.da,
3604	data->rx_probe_req.bssid,
3605	data->rx_probe_req.ie,
3606	data->rx_probe_req.ie_len,
3607	0,
3608	data->rx_probe_req.ssi_signal);
3609	break;
3610	case EVENT_REMAIN_ON_CHANNEL:
3611	#ifdef CONFIG_OFFCHANNEL
3612	offchannel_remain_on_channel_cb(
3613	wpa_s, data->remain_on_channel.freq,
3614	data->remain_on_channel.duration);
3615	#endif /* CONFIG_OFFCHANNEL */
3616	wpas_p2p_remain_on_channel_cb(
3617	wpa_s, data->remain_on_channel.freq,
3618	data->remain_on_channel.duration);
3619	break;
3620	case EVENT_CANCEL_REMAIN_ON_CHANNEL:
3621	#ifdef CONFIG_OFFCHANNEL
3622	offchannel_cancel_remain_on_channel_cb(
3623	wpa_s, data->remain_on_channel.freq);
3624	#endif /* CONFIG_OFFCHANNEL */
3625	wpas_p2p_cancel_remain_on_channel_cb(
3626	wpa_s, data->remain_on_channel.freq);
3627	break;
3628	case EVENT_EAPOL_RX:
3629	wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3630	data->eapol_rx.data,
3631	data->eapol_rx.data_len);
3632	break;
3633	case EVENT_SIGNAL_CHANGE:
3634	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3635	"above=%d signal=%d noise=%d txrate=%d",
3636	data->signal_change.above_threshold,
3637	data->signal_change.current_signal,
3638	data->signal_change.current_noise,
3639	data->signal_change.current_txrate);
3640	wpa_bss_update_level(wpa_s->current_bss,
3641	data->signal_change.current_signal);
3642	bgscan_notify_signal_change(
3643	wpa_s, data->signal_change.above_threshold,
3644	data->signal_change.current_signal,
3645	data->signal_change.current_noise,
3646	data->signal_change.current_txrate);
3647	break;
3648	case EVENT_INTERFACE_ENABLED:
3649	wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
3650	if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3651	wpa_supplicant_update_mac_addr(wpa_s);
3652	if (wpa_s->p2p_mgmt) {
3653	wpa_supplicant_set_state(wpa_s,
3654	WPA_DISCONNECTED);
3655	break;
3656	}
3657
3658	#ifdef CONFIG_AP
3659	if (!wpa_s->ap_iface) {
3660	wpa_supplicant_set_state(wpa_s,
3661	WPA_DISCONNECTED);
3662	wpa_s->scan_req = NORMAL_SCAN_REQ;
3663	wpa_supplicant_req_scan(wpa_s, 0, 0);
3664	} else
3665	wpa_supplicant_set_state(wpa_s,
3666	WPA_COMPLETED);
3667	#else /* CONFIG_AP */
3668	wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3669	wpa_supplicant_req_scan(wpa_s, 0, 0);
3670	#endif /* CONFIG_AP */
3671	}
3672	break;
3673	case EVENT_INTERFACE_DISABLED:
3674	wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
3675	#ifdef CONFIG_P2P
3676	if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO \|\|
3677	(wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3678	wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
3679	/*
3680	* Mark interface disabled if this happens to end up not
3681	* being removed as a separate P2P group interface.
3682	*/
3683	wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3684	/*
3685	* The interface was externally disabled. Remove
3686	* it assuming an external entity will start a
3687	* new session if needed.
3688	*/
3689	if (wpa_s->current_ssid &&
3690	wpa_s->current_ssid->p2p_group)
3691	wpas_p2p_interface_unavailable(wpa_s);
3692	else
3693	wpas_p2p_disconnect(wpa_s);
3694	/*
3695	* wpa_s instance may have been freed, so must not use
3696	* it here anymore.
3697	*/
3698	break;
3699	}
3700	if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3701	p2p_in_progress(wpa_s->global->p2p) > 1) {
3702	/* This radio work will be cancelled, so clear P2P
3703	* state as well.
3704	*/
3705	p2p_stop_find(wpa_s->global->p2p);
3706	}
3707	#endif /* CONFIG_P2P */
3708
3709	if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3710	/*
3711	* Indicate disconnection to keep ctrl_iface events
3712	* consistent.
3713	*/
3714	wpa_supplicant_event_disassoc(
3715	wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3716	}
3717	wpa_supplicant_mark_disassoc(wpa_s);
3718	radio_remove_works(wpa_s, NULL, 0);
3719
3720	wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3721	break;
3722	case EVENT_CHANNEL_LIST_CHANGED:
3723	wpa_supplicant_update_channel_list(
3724	wpa_s, &data->channel_list_changed);
3725	break;
3726	case EVENT_INTERFACE_UNAVAILABLE:
3727	wpas_p2p_interface_unavailable(wpa_s);
3728	break;
3729	case EVENT_BEST_CHANNEL:
3730	wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3731	"(%d %d %d)",
3732	data->best_chan.freq_24, data->best_chan.freq_5,
3733	data->best_chan.freq_overall);
3734	wpa_s->best_24_freq = data->best_chan.freq_24;
3735	wpa_s->best_5_freq = data->best_chan.freq_5;
3736	wpa_s->best_overall_freq = data->best_chan.freq_overall;
3737	wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3738	data->best_chan.freq_5,
3739	data->best_chan.freq_overall);
3740	break;
3741	case EVENT_UNPROT_DEAUTH:
3742	wpa_supplicant_event_unprot_deauth(wpa_s,
3743	&data->unprot_deauth);
3744	break;
3745	case EVENT_UNPROT_DISASSOC:
3746	wpa_supplicant_event_unprot_disassoc(wpa_s,
3747	&data->unprot_disassoc);
3748	break;
3749	case EVENT_STATION_LOW_ACK:
3750	#ifdef CONFIG_AP
3751	if (wpa_s->ap_iface && data)
3752	hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3753	data->low_ack.addr);
3754	#endif /* CONFIG_AP */
3755	#ifdef CONFIG_TDLS
3756	if (data)
3757	wpa_tdls_disable_unreachable_link(wpa_s->wpa,
3758	data->low_ack.addr);
3759	#endif /* CONFIG_TDLS */
3760	break;
3761	case EVENT_IBSS_PEER_LOST:
3762	#ifdef CONFIG_IBSS_RSN
3763	ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
3764	#endif /* CONFIG_IBSS_RSN */
3765	break;
3766	case EVENT_DRIVER_GTK_REKEY:
3767	if (os_memcmp(data->driver_gtk_rekey.bssid,
3768	wpa_s->bssid, ETH_ALEN))
3769	break;
3770	if (!wpa_s->wpa)
3771	break;
3772	wpa_sm_update_replay_ctr(wpa_s->wpa,
3773	data->driver_gtk_rekey.replay_ctr);
3774	break;
3775	case EVENT_SCHED_SCAN_STOPPED:
3776	wpa_s->pno = 0;
3777	wpa_s->sched_scanning = 0;
3778	resched = wpa_s->scanning;
3779	wpa_supplicant_notify_scanning(wpa_s, 0);
3780
3781	if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
3782	break;
3783
3784	/*
3785	* Start a new sched scan to continue searching for more SSIDs
3786	* either if timed out or PNO schedule scan is pending.
3787	*/
3788	if (wpa_s->sched_scan_timed_out) {
3789	wpa_supplicant_req_sched_scan(wpa_s);
3790	} else if (wpa_s->pno_sched_pending) {
3791	wpa_s->pno_sched_pending = 0;
3792	wpas_start_pno(wpa_s);
3793	} else if (resched) {
3794	wpa_supplicant_req_scan(wpa_s, 0, 0);
3795	}
3796
3797	break;
3798	case EVENT_WPS_BUTTON_PUSHED:
3799	#ifdef CONFIG_WPS
3800	wpas_wps_start_pbc(wpa_s, NULL, 0);
3801	#endif /* CONFIG_WPS */
3802	break;
3803	case EVENT_AVOID_FREQUENCIES:
3804	wpa_supplicant_notify_avoid_freq(wpa_s, data);
3805	break;
3806	case EVENT_CONNECT_FAILED_REASON:
3807	#ifdef CONFIG_AP
3808	if (!wpa_s->ap_iface \|\| !data)
3809	break;
3810	hostapd_event_connect_failed_reason(
3811	wpa_s->ap_iface->bss[0],
3812	data->connect_failed_reason.addr,
3813	data->connect_failed_reason.code);
3814	#endif /* CONFIG_AP */
3815	break;
3816	case EVENT_NEW_PEER_CANDIDATE:
3817	#ifdef CONFIG_MESH
3818	if (!wpa_s->ifmsh \|\| !data)
3819	break;
3820	wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
3821	data->mesh_peer.ies,
3822	data->mesh_peer.ie_len);
3823	#endif /* CONFIG_MESH */
3824	break;
3825	default:
3826	wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
3827	break;
3828	}
3829	}

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