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events.c @ bc4bb2e

55-freebsd-126-freebsd-12

Last change on this file since bc4bb2e was bc4bb2e, checked in by gordon <gordon@…>, on 10/17/17 at 17:22:36

Update wpa_supplicant/hostapd for 2017-01 vulnerability release.

hostapd: Avoid key reinstallation in FT handshake
Prevent reinstallation of an already in-use group key
Extend protection of GTK/IGTK reinstallation of WNM-Sleep Mode cases
Fix TK configuration to the driver in EAPOL-Key 3/4 retry case
Prevent installation of an all-zero TK
Fix PTK rekeying to generate a new ANonce
TDLS: Reject TPK-TK reconfiguration
WNM: Ignore Key Data in WNM Sleep Mode Response frame if no PMF in use
WNM: Ignore WNM-Sleep Mode Response if WNM-Sleep Mode has not been used
WNM: Ignore WNM-Sleep Mode Response without pending request
FT: Do not allow multiple Reassociation Response frames
TDLS: Ignore incoming TDLS Setup Response retries

Submitted by: jhb
Obtained from: https://w1.fi/security/2017-01/ (against later version)
Security: FreeBSD-SA-17:07
Security: CERT VU#228519
Security: CVE-2017-13077
Security: CVE-2017-13078
Security: CVE-2017-13079
Security: CVE-2017-13080
Security: CVE-2017-13081
Security: CVE-2017-13082
Security: CVE-2017-13086
Security: CVE-2017-13087
Security: CVE-2017-13088
Differential Revision: https://reviews.freebsd.org/D12693

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

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source: rtems-libbsd/freebsd/contrib/wpa/wpa_supplicant/events.c @ bc4bb2e

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