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1 /*
2  * WPA Supplicant - Driver event processing
3  * Copyright (c) 2003-2019, Jouni Malinen <j@w1.fi>
4  *
5  * This software may be distributed under the terms of the BSD license.
6  * See README for more details.
7  */
8 
9 #include "includes.h"
10 
11 #include "common.h"
12 #include "eapol_supp/eapol_supp_sm.h"
13 #include "rsn_supp/wpa.h"
14 #include "eloop.h"
15 #include "config.h"
16 #include "l2_packet/l2_packet.h"
17 #include "wpa_supplicant_i.h"
18 #include "driver_i.h"
19 #include "pcsc_funcs.h"
20 #include "rsn_supp/preauth.h"
21 #include "rsn_supp/pmksa_cache.h"
22 #include "common/wpa_ctrl.h"
23 #include "eap_peer/eap.h"
24 #include "ap/hostapd.h"
25 #include "p2p/p2p.h"
26 #include "fst/fst.h"
27 #include "wnm_sta.h"
28 #include "notify.h"
29 #include "common/ieee802_11_defs.h"
30 #include "common/ieee802_11_common.h"
31 #include "common/gas_server.h"
32 #include "common/dpp.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 #include "dpp_supplicant.h"
52 
53 
54 #define MAX_OWE_TRANSITION_BSS_SELECT_COUNT 5
55 
56 
57 #ifndef CONFIG_NO_SCAN_PROCESSING
58 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
59 					      int new_scan, int own_request);
60 #endif /* CONFIG_NO_SCAN_PROCESSING */
61 
62 
wpas_temp_disabled(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)63 int wpas_temp_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
64 {
65 	struct os_reltime now;
66 
67 	if (ssid == NULL || ssid->disabled_until.sec == 0)
68 		return 0;
69 
70 	os_get_reltime(&now);
71 	if (ssid->disabled_until.sec > now.sec)
72 		return ssid->disabled_until.sec - now.sec;
73 
74 	wpas_clear_temp_disabled(wpa_s, ssid, 0);
75 
76 	return 0;
77 }
78 
79 
80 #ifndef CONFIG_NO_SCAN_PROCESSING
81 /**
82  * wpas_reenabled_network_time - Time until first network is re-enabled
83  * @wpa_s: Pointer to wpa_supplicant data
84  * Returns: If all enabled networks are temporarily disabled, returns the time
85  *	(in sec) until the first network is re-enabled. Otherwise returns 0.
86  *
87  * This function is used in case all enabled networks are temporarily disabled,
88  * in which case it returns the time (in sec) that the first network will be
89  * re-enabled. The function assumes that at least one network is enabled.
90  */
wpas_reenabled_network_time(struct wpa_supplicant * wpa_s)91 static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
92 {
93 	struct wpa_ssid *ssid;
94 	int disabled_for, res = 0;
95 
96 #ifdef CONFIG_INTERWORKING
97 	if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
98 	    wpa_s->conf->cred)
99 		return 0;
100 #endif /* CONFIG_INTERWORKING */
101 
102 	for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
103 		if (ssid->disabled)
104 			continue;
105 
106 		disabled_for = wpas_temp_disabled(wpa_s, ssid);
107 		if (!disabled_for)
108 			return 0;
109 
110 		if (!res || disabled_for < res)
111 			res = disabled_for;
112 	}
113 
114 	return res;
115 }
116 #endif /* CONFIG_NO_SCAN_PROCESSING */
117 
118 
wpas_network_reenabled(void * eloop_ctx,void * timeout_ctx)119 void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
120 {
121 	struct wpa_supplicant *wpa_s = eloop_ctx;
122 
123 	if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
124 		return;
125 
126 	wpa_dbg(wpa_s, MSG_DEBUG,
127 		"Try to associate due to network getting re-enabled");
128 	if (wpa_supplicant_fast_associate(wpa_s) != 1) {
129 		wpa_supplicant_cancel_sched_scan(wpa_s);
130 		wpa_supplicant_req_scan(wpa_s, 0, 0);
131 	}
132 }
133 
134 
wpa_supplicant_get_new_bss(struct wpa_supplicant * wpa_s,const u8 * bssid)135 static struct wpa_bss * wpa_supplicant_get_new_bss(
136 	struct wpa_supplicant *wpa_s, const u8 *bssid)
137 {
138 	struct wpa_bss *bss = NULL;
139 	struct wpa_ssid *ssid = wpa_s->current_ssid;
140 
141 	if (ssid->ssid_len > 0)
142 		bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
143 	if (!bss)
144 		bss = wpa_bss_get_bssid(wpa_s, bssid);
145 
146 	return bss;
147 }
148 
149 
wpa_supplicant_update_current_bss(struct wpa_supplicant * wpa_s)150 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
151 {
152 	struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
153 
154 	if (!bss) {
155 		wpa_supplicant_update_scan_results(wpa_s);
156 
157 		/* Get the BSS from the new scan results */
158 		bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
159 	}
160 
161 	if (bss)
162 		wpa_s->current_bss = bss;
163 }
164 
165 
wpa_supplicant_select_config(struct wpa_supplicant * wpa_s)166 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
167 {
168 	struct wpa_ssid *ssid, *old_ssid;
169 	u8 drv_ssid[SSID_MAX_LEN];
170 	size_t drv_ssid_len;
171 	int res;
172 
173 	if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
174 		wpa_supplicant_update_current_bss(wpa_s);
175 
176 		if (wpa_s->current_ssid->ssid_len == 0)
177 			return 0; /* current profile still in use */
178 		res = wpa_drv_get_ssid(wpa_s, drv_ssid);
179 		if (res < 0) {
180 			wpa_msg(wpa_s, MSG_INFO,
181 				"Failed to read SSID from driver");
182 			return 0; /* try to use current profile */
183 		}
184 		drv_ssid_len = res;
185 
186 		if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
187 		    os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
188 			      drv_ssid_len) == 0)
189 			return 0; /* current profile still in use */
190 
191 #ifdef CONFIG_OWE
192 		if ((wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
193 		    wpa_s->current_bss &&
194 		    (wpa_s->current_bss->flags & WPA_BSS_OWE_TRANSITION) &&
195 		    drv_ssid_len == wpa_s->current_bss->ssid_len &&
196 		    os_memcmp(drv_ssid, wpa_s->current_bss->ssid,
197 			      drv_ssid_len) == 0)
198 			return 0; /* current profile still in use */
199 #endif /* CONFIG_OWE */
200 
201 		wpa_msg(wpa_s, MSG_DEBUG,
202 			"Driver-initiated BSS selection changed the SSID to %s",
203 			wpa_ssid_txt(drv_ssid, drv_ssid_len));
204 		/* continue selecting a new network profile */
205 	}
206 
207 	wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
208 		"information");
209 	ssid = wpa_supplicant_get_ssid(wpa_s);
210 	if (ssid == NULL) {
211 		wpa_msg(wpa_s, MSG_INFO,
212 			"No network configuration found for the current AP");
213 		return -1;
214 	}
215 
216 	if (wpas_network_disabled(wpa_s, ssid)) {
217 		wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
218 		return -1;
219 	}
220 
221 	if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
222 	    disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
223 		wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
224 		return -1;
225 	}
226 
227 	res = wpas_temp_disabled(wpa_s, ssid);
228 	if (res > 0) {
229 		wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
230 			"disabled for %d second(s)", res);
231 		return -1;
232 	}
233 
234 	wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
235 		"current AP");
236 	if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
237 		u8 wpa_ie[80];
238 		size_t wpa_ie_len = sizeof(wpa_ie);
239 		if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
240 					      wpa_ie, &wpa_ie_len) < 0)
241 			wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
242 	} else {
243 		wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
244 	}
245 
246 	if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
247 		eapol_sm_invalidate_cached_session(wpa_s->eapol);
248 	old_ssid = wpa_s->current_ssid;
249 	wpa_s->current_ssid = ssid;
250 
251 	wpa_supplicant_update_current_bss(wpa_s);
252 
253 	wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
254 	wpa_supplicant_initiate_eapol(wpa_s);
255 	if (old_ssid != wpa_s->current_ssid)
256 		wpas_notify_network_changed(wpa_s);
257 
258 	return 0;
259 }
260 
261 
wpa_supplicant_stop_countermeasures(void * eloop_ctx,void * sock_ctx)262 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
263 {
264 	struct wpa_supplicant *wpa_s = eloop_ctx;
265 
266 	if (wpa_s->countermeasures) {
267 		wpa_s->countermeasures = 0;
268 		wpa_drv_set_countermeasures(wpa_s, 0);
269 		wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
270 
271 		/*
272 		 * It is possible that the device is sched scanning, which means
273 		 * that a connection attempt will be done only when we receive
274 		 * scan results. However, in this case, it would be preferable
275 		 * to scan and connect immediately, so cancel the sched_scan and
276 		 * issue a regular scan flow.
277 		 */
278 		wpa_supplicant_cancel_sched_scan(wpa_s);
279 		wpa_supplicant_req_scan(wpa_s, 0, 0);
280 	}
281 }
282 
283 
wpa_supplicant_mark_disassoc(struct wpa_supplicant * wpa_s)284 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
285 {
286 	int bssid_changed;
287 
288 	wnm_bss_keep_alive_deinit(wpa_s);
289 
290 #ifdef CONFIG_IBSS_RSN
291 	ibss_rsn_deinit(wpa_s->ibss_rsn);
292 	wpa_s->ibss_rsn = NULL;
293 #endif /* CONFIG_IBSS_RSN */
294 
295 #ifdef CONFIG_AP
296 	wpa_supplicant_ap_deinit(wpa_s);
297 #endif /* CONFIG_AP */
298 
299 #ifdef CONFIG_HS20
300 	/* Clear possibly configured frame filters */
301 	wpa_drv_configure_frame_filters(wpa_s, 0);
302 #endif /* CONFIG_HS20 */
303 
304 	if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
305 		return;
306 
307 	if (os_reltime_initialized(&wpa_s->session_start)) {
308 		os_reltime_age(&wpa_s->session_start, &wpa_s->session_length);
309 		wpa_s->session_start.sec = 0;
310 		wpa_s->session_start.usec = 0;
311 		wpas_notify_session_length(wpa_s);
312 	}
313 
314 	wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
315 	bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
316 	os_memset(wpa_s->bssid, 0, ETH_ALEN);
317 	os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
318 	sme_clear_on_disassoc(wpa_s);
319 	wpa_s->current_bss = NULL;
320 	wpa_s->assoc_freq = 0;
321 
322 	if (bssid_changed)
323 		wpas_notify_bssid_changed(wpa_s);
324 
325 	eapol_sm_notify_portEnabled(wpa_s->eapol, false);
326 	eapol_sm_notify_portValid(wpa_s->eapol, false);
327 	if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
328 	    wpa_s->key_mgmt == WPA_KEY_MGMT_OWE ||
329 	    wpa_s->key_mgmt == WPA_KEY_MGMT_DPP || wpa_s->drv_authorized_port)
330 		eapol_sm_notify_eap_success(wpa_s->eapol, false);
331 	wpa_s->drv_authorized_port = 0;
332 	wpa_s->ap_ies_from_associnfo = 0;
333 	wpa_s->current_ssid = NULL;
334 	eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
335 	wpa_s->key_mgmt = 0;
336 
337 	wpas_rrm_reset(wpa_s);
338 	wpa_s->wnmsleep_used = 0;
339 	wnm_clear_coloc_intf_reporting(wpa_s);
340 	wpa_s->disable_mbo_oce = 0;
341 
342 #ifdef CONFIG_TESTING_OPTIONS
343 	wpa_s->last_tk_alg = WPA_ALG_NONE;
344 	os_memset(wpa_s->last_tk, 0, sizeof(wpa_s->last_tk));
345 #endif /* CONFIG_TESTING_OPTIONS */
346 	wpa_s->ieee80211ac = 0;
347 
348 	if (wpa_s->enabled_4addr_mode && wpa_drv_set_4addr_mode(wpa_s, 0) == 0)
349 		wpa_s->enabled_4addr_mode = 0;
350 }
351 
352 
wpa_find_assoc_pmkid(struct wpa_supplicant * wpa_s)353 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
354 {
355 	struct wpa_ie_data ie;
356 	int pmksa_set = -1;
357 	size_t i;
358 
359 	if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
360 	    ie.pmkid == NULL)
361 		return;
362 
363 	for (i = 0; i < ie.num_pmkid; i++) {
364 		pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
365 						    ie.pmkid + i * PMKID_LEN,
366 						    NULL, NULL, 0, NULL, 0);
367 		if (pmksa_set == 0) {
368 			eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
369 			break;
370 		}
371 	}
372 
373 	wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
374 		"PMKSA cache", pmksa_set == 0 ? "" : "not ");
375 }
376 
377 
wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant * wpa_s,union wpa_event_data * data)378 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
379 						 union wpa_event_data *data)
380 {
381 	if (data == NULL) {
382 		wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
383 			"event");
384 		return;
385 	}
386 	wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
387 		" index=%d preauth=%d",
388 		MAC2STR(data->pmkid_candidate.bssid),
389 		data->pmkid_candidate.index,
390 		data->pmkid_candidate.preauth);
391 
392 	pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
393 			    data->pmkid_candidate.index,
394 			    data->pmkid_candidate.preauth);
395 }
396 
397 
wpa_supplicant_dynamic_keys(struct wpa_supplicant * wpa_s)398 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
399 {
400 	if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
401 	    wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
402 		return 0;
403 
404 #ifdef IEEE8021X_EAPOL
405 	if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
406 	    wpa_s->current_ssid &&
407 	    !(wpa_s->current_ssid->eapol_flags &
408 	      (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
409 	       EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
410 		/* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
411 		 * plaintext or static WEP keys). */
412 		return 0;
413 	}
414 #endif /* IEEE8021X_EAPOL */
415 
416 	return 1;
417 }
418 
419 
420 /**
421  * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
422  * @wpa_s: pointer to wpa_supplicant data
423  * @ssid: Configuration data for the network
424  * Returns: 0 on success, -1 on failure
425  *
426  * This function is called when starting authentication with a network that is
427  * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
428  */
wpa_supplicant_scard_init(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)429 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
430 			      struct wpa_ssid *ssid)
431 {
432 #ifdef IEEE8021X_EAPOL
433 #ifdef PCSC_FUNCS
434 	int aka = 0, sim = 0;
435 
436 	if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
437 	    wpa_s->scard != NULL || wpa_s->conf->external_sim)
438 		return 0;
439 
440 	if (ssid == NULL || ssid->eap.eap_methods == NULL) {
441 		sim = 1;
442 		aka = 1;
443 	} else {
444 		struct eap_method_type *eap = ssid->eap.eap_methods;
445 		while (eap->vendor != EAP_VENDOR_IETF ||
446 		       eap->method != EAP_TYPE_NONE) {
447 			if (eap->vendor == EAP_VENDOR_IETF) {
448 				if (eap->method == EAP_TYPE_SIM)
449 					sim = 1;
450 				else if (eap->method == EAP_TYPE_AKA ||
451 					 eap->method == EAP_TYPE_AKA_PRIME)
452 					aka = 1;
453 			}
454 			eap++;
455 		}
456 	}
457 
458 	if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
459 		sim = 0;
460 	if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
461 	    eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
462 	    NULL)
463 		aka = 0;
464 
465 	if (!sim && !aka) {
466 		wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
467 			"use SIM, but neither EAP-SIM nor EAP-AKA are "
468 			"enabled");
469 		return 0;
470 	}
471 
472 	wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
473 		"(sim=%d aka=%d) - initialize PCSC", sim, aka);
474 
475 	wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
476 	if (wpa_s->scard == NULL) {
477 		wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
478 			"(pcsc-lite)");
479 		return -1;
480 	}
481 	wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
482 	eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
483 #endif /* PCSC_FUNCS */
484 #endif /* IEEE8021X_EAPOL */
485 
486 	return 0;
487 }
488 
489 
490 #ifndef CONFIG_NO_SCAN_PROCESSING
491 
492 #ifdef CONFIG_WEP
has_wep_key(struct wpa_ssid * ssid)493 static int has_wep_key(struct wpa_ssid *ssid)
494 {
495 	int i;
496 
497 	for (i = 0; i < NUM_WEP_KEYS; i++) {
498 		if (ssid->wep_key_len[i])
499 			return 1;
500 	}
501 
502 	return 0;
503 }
504 #endif /* CONFIG_WEP */
505 
506 
wpa_supplicant_match_privacy(struct wpa_bss * bss,struct wpa_ssid * ssid)507 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
508 					struct wpa_ssid *ssid)
509 {
510 	int privacy = 0;
511 
512 	if (ssid->mixed_cell)
513 		return 1;
514 
515 #ifdef CONFIG_WPS
516 	if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
517 		return 1;
518 #endif /* CONFIG_WPS */
519 
520 #ifdef CONFIG_OWE
521 	if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only)
522 		return 1;
523 #endif /* CONFIG_OWE */
524 
525 #ifdef CONFIG_WEP
526 	if (has_wep_key(ssid))
527 		privacy = 1;
528 #endif /* CONFIG_WEP */
529 
530 #ifdef IEEE8021X_EAPOL
531 	if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
532 	    ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
533 				 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
534 		privacy = 1;
535 #endif /* IEEE8021X_EAPOL */
536 
537 	if (wpa_key_mgmt_wpa(ssid->key_mgmt))
538 		privacy = 1;
539 
540 	if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
541 		privacy = 1;
542 
543 	if (bss->caps & IEEE80211_CAP_PRIVACY)
544 		return privacy;
545 	return !privacy;
546 }
547 
548 
wpa_supplicant_ssid_bss_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss,int debug_print)549 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
550 					 struct wpa_ssid *ssid,
551 					 struct wpa_bss *bss, int debug_print)
552 {
553 	struct wpa_ie_data ie;
554 	int proto_match = 0;
555 	const u8 *rsn_ie, *wpa_ie;
556 	int ret;
557 #ifdef CONFIG_WEP
558 	int wep_ok;
559 #endif /* CONFIG_WEP */
560 
561 	ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
562 	if (ret >= 0)
563 		return ret;
564 
565 #ifdef CONFIG_WEP
566 	/* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
567 	wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
568 		(((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
569 		  ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
570 		 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
571 #endif /* CONFIG_WEP */
572 
573 	rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
574 	while ((ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)) && rsn_ie) {
575 		proto_match++;
576 
577 		if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
578 			if (debug_print)
579 				wpa_dbg(wpa_s, MSG_DEBUG,
580 					"   skip RSN IE - parse failed");
581 			break;
582 		}
583 		if (!ie.has_pairwise)
584 			ie.pairwise_cipher = wpa_default_rsn_cipher(bss->freq);
585 		if (!ie.has_group)
586 			ie.group_cipher = wpa_default_rsn_cipher(bss->freq);
587 
588 #ifdef CONFIG_WEP
589 		if (wep_ok &&
590 		    (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
591 		{
592 			if (debug_print)
593 				wpa_dbg(wpa_s, MSG_DEBUG,
594 					"   selected based on TSN in RSN IE");
595 			return 1;
596 		}
597 #endif /* CONFIG_WEP */
598 
599 		if (!(ie.proto & ssid->proto) &&
600 		    !(ssid->proto & WPA_PROTO_OSEN)) {
601 			if (debug_print)
602 				wpa_dbg(wpa_s, MSG_DEBUG,
603 					"   skip RSN IE - proto mismatch");
604 			break;
605 		}
606 
607 		if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
608 			if (debug_print)
609 				wpa_dbg(wpa_s, MSG_DEBUG,
610 					"   skip RSN IE - PTK cipher mismatch");
611 			break;
612 		}
613 
614 		if (!(ie.group_cipher & ssid->group_cipher)) {
615 			if (debug_print)
616 				wpa_dbg(wpa_s, MSG_DEBUG,
617 					"   skip RSN IE - GTK cipher mismatch");
618 			break;
619 		}
620 
621 		if (ssid->group_mgmt_cipher &&
622 		    !(ie.mgmt_group_cipher & ssid->group_mgmt_cipher)) {
623 			if (debug_print)
624 				wpa_dbg(wpa_s, MSG_DEBUG,
625 					"   skip RSN IE - group mgmt cipher mismatch");
626 			break;
627 		}
628 
629 		if (!(ie.key_mgmt & ssid->key_mgmt)) {
630 			if (debug_print)
631 				wpa_dbg(wpa_s, MSG_DEBUG,
632 					"   skip RSN IE - key mgmt mismatch");
633 			break;
634 		}
635 
636 		if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
637 		    wpas_get_ssid_pmf(wpa_s, ssid) ==
638 		    MGMT_FRAME_PROTECTION_REQUIRED) {
639 			if (debug_print)
640 				wpa_dbg(wpa_s, MSG_DEBUG,
641 					"   skip RSN IE - no mgmt frame protection");
642 			break;
643 		}
644 		if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
645 		    wpas_get_ssid_pmf(wpa_s, ssid) ==
646 		    NO_MGMT_FRAME_PROTECTION) {
647 			if (debug_print)
648 				wpa_dbg(wpa_s, MSG_DEBUG,
649 					"   skip RSN IE - no mgmt frame protection enabled but AP requires it");
650 			break;
651 		}
652 
653 		if (debug_print)
654 			wpa_dbg(wpa_s, MSG_DEBUG,
655 				"   selected based on RSN IE");
656 		return 1;
657 	}
658 
659 	if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED &&
660 	    (!(ssid->key_mgmt & WPA_KEY_MGMT_OWE) || ssid->owe_only)) {
661 		if (debug_print)
662 			wpa_dbg(wpa_s, MSG_DEBUG,
663 				"   skip - MFP Required but network not MFP Capable");
664 		return 0;
665 	}
666 
667 	wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
668 	while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
669 		proto_match++;
670 
671 		if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
672 			if (debug_print)
673 				wpa_dbg(wpa_s, MSG_DEBUG,
674 					"   skip WPA IE - parse failed");
675 			break;
676 		}
677 
678 #ifdef CONFIG_WEP
679 		if (wep_ok &&
680 		    (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
681 		{
682 			if (debug_print)
683 				wpa_dbg(wpa_s, MSG_DEBUG,
684 					"   selected based on TSN in WPA IE");
685 			return 1;
686 		}
687 #endif /* CONFIG_WEP */
688 
689 		if (!(ie.proto & ssid->proto)) {
690 			if (debug_print)
691 				wpa_dbg(wpa_s, MSG_DEBUG,
692 					"   skip WPA IE - proto mismatch");
693 			break;
694 		}
695 
696 		if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
697 			if (debug_print)
698 				wpa_dbg(wpa_s, MSG_DEBUG,
699 					"   skip WPA IE - PTK cipher mismatch");
700 			break;
701 		}
702 
703 		if (!(ie.group_cipher & ssid->group_cipher)) {
704 			if (debug_print)
705 				wpa_dbg(wpa_s, MSG_DEBUG,
706 					"   skip WPA IE - GTK cipher mismatch");
707 			break;
708 		}
709 
710 		if (!(ie.key_mgmt & ssid->key_mgmt)) {
711 			if (debug_print)
712 				wpa_dbg(wpa_s, MSG_DEBUG,
713 					"   skip WPA IE - key mgmt mismatch");
714 			break;
715 		}
716 
717 		if (debug_print)
718 			wpa_dbg(wpa_s, MSG_DEBUG,
719 				"   selected based on WPA IE");
720 		return 1;
721 	}
722 
723 	if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
724 	    !rsn_ie) {
725 		if (debug_print)
726 			wpa_dbg(wpa_s, MSG_DEBUG,
727 				"   allow for non-WPA IEEE 802.1X");
728 		return 1;
729 	}
730 
731 #ifdef CONFIG_OWE
732 	if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only &&
733 	    !wpa_ie && !rsn_ie) {
734 		if (wpa_s->owe_transition_select &&
735 		    wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE) &&
736 		    ssid->owe_transition_bss_select_count + 1 <=
737 		    MAX_OWE_TRANSITION_BSS_SELECT_COUNT) {
738 			ssid->owe_transition_bss_select_count++;
739 			if (debug_print)
740 				wpa_dbg(wpa_s, MSG_DEBUG,
741 					"   skip OWE transition BSS (selection count %d does not exceed %d)",
742 					ssid->owe_transition_bss_select_count,
743 					MAX_OWE_TRANSITION_BSS_SELECT_COUNT);
744 			wpa_s->owe_transition_search = 1;
745 			return 0;
746 		}
747 		if (debug_print)
748 			wpa_dbg(wpa_s, MSG_DEBUG,
749 				"   allow in OWE transition mode");
750 		return 1;
751 	}
752 #endif /* CONFIG_OWE */
753 
754 	if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
755 	    wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
756 		if (debug_print)
757 			wpa_dbg(wpa_s, MSG_DEBUG,
758 				"   skip - no WPA/RSN proto match");
759 		return 0;
760 	}
761 
762 	if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
763 	    wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
764 		if (debug_print)
765 			wpa_dbg(wpa_s, MSG_DEBUG, "   allow in OSEN");
766 		return 1;
767 	}
768 
769 	if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
770 		if (debug_print)
771 			wpa_dbg(wpa_s, MSG_DEBUG, "   allow in non-WPA/WPA2");
772 		return 1;
773 	}
774 
775 	if (debug_print)
776 		wpa_dbg(wpa_s, MSG_DEBUG,
777 			"   reject due to mismatch with WPA/WPA2");
778 
779 	return 0;
780 }
781 
782 
freq_allowed(int * freqs,int freq)783 static int freq_allowed(int *freqs, int freq)
784 {
785 	int i;
786 
787 	if (freqs == NULL)
788 		return 1;
789 
790 	for (i = 0; freqs[i]; i++)
791 		if (freqs[i] == freq)
792 			return 1;
793 	return 0;
794 }
795 
796 
rate_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss,int debug_print)797 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
798 		      struct wpa_bss *bss, int debug_print)
799 {
800 	const struct hostapd_hw_modes *mode = NULL, *modes;
801 	const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
802 	const u8 *rate_ie;
803 	int i, j, k;
804 
805 	if (bss->freq == 0)
806 		return 1; /* Cannot do matching without knowing band */
807 
808 	modes = wpa_s->hw.modes;
809 	if (modes == NULL) {
810 		/*
811 		 * The driver does not provide any additional information
812 		 * about the utilized hardware, so allow the connection attempt
813 		 * to continue.
814 		 */
815 		return 1;
816 	}
817 
818 	for (i = 0; i < wpa_s->hw.num_modes; i++) {
819 		for (j = 0; j < modes[i].num_channels; j++) {
820 			int freq = modes[i].channels[j].freq;
821 			if (freq == bss->freq) {
822 				if (mode &&
823 				    mode->mode == HOSTAPD_MODE_IEEE80211G)
824 					break; /* do not allow 802.11b replace
825 						* 802.11g */
826 				mode = &modes[i];
827 				break;
828 			}
829 		}
830 	}
831 
832 	if (mode == NULL)
833 		return 0;
834 
835 	for (i = 0; i < (int) sizeof(scan_ie); i++) {
836 		rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
837 		if (rate_ie == NULL)
838 			continue;
839 
840 		for (j = 2; j < rate_ie[1] + 2; j++) {
841 			int flagged = !!(rate_ie[j] & 0x80);
842 			int r = (rate_ie[j] & 0x7f) * 5;
843 
844 			/*
845 			 * IEEE Std 802.11n-2009 7.3.2.2:
846 			 * The new BSS Membership selector value is encoded
847 			 * like a legacy basic rate, but it is not a rate and
848 			 * only indicates if the BSS members are required to
849 			 * support the mandatory features of Clause 20 [HT PHY]
850 			 * in order to join the BSS.
851 			 */
852 			if (flagged && ((rate_ie[j] & 0x7f) ==
853 					BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
854 				if (!ht_supported(mode)) {
855 					if (debug_print)
856 						wpa_dbg(wpa_s, MSG_DEBUG,
857 							"   hardware does not support HT PHY");
858 					return 0;
859 				}
860 				continue;
861 			}
862 
863 			/* There's also a VHT selector for 802.11ac */
864 			if (flagged && ((rate_ie[j] & 0x7f) ==
865 					BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
866 				if (!vht_supported(mode)) {
867 					if (debug_print)
868 						wpa_dbg(wpa_s, MSG_DEBUG,
869 							"   hardware does not support VHT PHY");
870 					return 0;
871 				}
872 				continue;
873 			}
874 
875 #ifdef CONFIG_SAE
876 			if (flagged && ((rate_ie[j] & 0x7f) ==
877 					BSS_MEMBERSHIP_SELECTOR_SAE_H2E_ONLY)) {
878 				if (wpa_s->conf->sae_pwe == 0 &&
879 				    !ssid->sae_password_id &&
880 				    wpa_key_mgmt_sae(ssid->key_mgmt)) {
881 					if (debug_print)
882 						wpa_dbg(wpa_s, MSG_DEBUG,
883 							"   SAE H2E disabled");
884 #ifdef CONFIG_TESTING_OPTIONS
885 					if (wpa_s->ignore_sae_h2e_only) {
886 						wpa_dbg(wpa_s, MSG_DEBUG,
887 							"TESTING: Ignore SAE H2E requirement mismatch");
888 						continue;
889 					}
890 #endif /* CONFIG_TESTING_OPTIONS */
891 					return 0;
892 				}
893 				continue;
894 			}
895 #endif /* CONFIG_SAE */
896 
897 			if (!flagged)
898 				continue;
899 
900 			/* check for legacy basic rates */
901 			for (k = 0; k < mode->num_rates; k++) {
902 				if (mode->rates[k] == r)
903 					break;
904 			}
905 			if (k == mode->num_rates) {
906 				/*
907 				 * IEEE Std 802.11-2007 7.3.2.2 demands that in
908 				 * order to join a BSS all required rates
909 				 * have to be supported by the hardware.
910 				 */
911 				if (debug_print)
912 					wpa_dbg(wpa_s, MSG_DEBUG,
913 						"   hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
914 						r / 10, r % 10,
915 						bss->freq, mode->mode, mode->num_rates);
916 				return 0;
917 			}
918 		}
919 	}
920 
921 	return 1;
922 }
923 
924 
925 /*
926  * Test whether BSS is in an ESS.
927  * This is done differently in DMG (60 GHz) and non-DMG bands
928  */
bss_is_ess(struct wpa_bss * bss)929 static int bss_is_ess(struct wpa_bss *bss)
930 {
931 	if (bss_is_dmg(bss)) {
932 		return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
933 			IEEE80211_CAP_DMG_AP;
934 	}
935 
936 	return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
937 		IEEE80211_CAP_ESS);
938 }
939 
940 
match_mac_mask(const u8 * addr_a,const u8 * addr_b,const u8 * mask)941 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
942 {
943 	size_t i;
944 
945 	for (i = 0; i < ETH_ALEN; i++) {
946 		if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
947 			return 0;
948 	}
949 	return 1;
950 }
951 
952 
addr_in_list(const u8 * addr,const u8 * list,size_t num)953 static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
954 {
955 	size_t i;
956 
957 	for (i = 0; i < num; i++) {
958 		const u8 *a = list + i * ETH_ALEN * 2;
959 		const u8 *m = a + ETH_ALEN;
960 
961 		if (match_mac_mask(a, addr, m))
962 			return 1;
963 	}
964 	return 0;
965 }
966 
967 
owe_trans_ssid(struct wpa_supplicant * wpa_s,struct wpa_bss * bss,const u8 ** ret_ssid,size_t * ret_ssid_len)968 static void owe_trans_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
969 			   const u8 **ret_ssid, size_t *ret_ssid_len)
970 {
971 #ifdef CONFIG_OWE
972 	const u8 *owe, *pos, *end, *bssid;
973 	u8 ssid_len;
974 	struct wpa_bss *open_bss;
975 
976 	owe = wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE);
977 	if (!owe || !wpa_bss_get_ie(bss, WLAN_EID_RSN))
978 		return;
979 
980 	pos = owe + 6;
981 	end = owe + 2 + owe[1];
982 
983 	if (end - pos < ETH_ALEN + 1)
984 		return;
985 	bssid = pos;
986 	pos += ETH_ALEN;
987 	ssid_len = *pos++;
988 	if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN)
989 		return;
990 
991 	/* Match the profile SSID against the OWE transition mode SSID on the
992 	 * open network. */
993 	wpa_dbg(wpa_s, MSG_DEBUG, "OWE: transition mode BSSID: " MACSTR
994 		" SSID: %s", MAC2STR(bssid), wpa_ssid_txt(pos, ssid_len));
995 	*ret_ssid = pos;
996 	*ret_ssid_len = ssid_len;
997 
998 	if (!(bss->flags & WPA_BSS_OWE_TRANSITION)) {
999 		struct wpa_ssid *ssid;
1000 
1001 		for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1002 			if (wpas_network_disabled(wpa_s, ssid))
1003 				continue;
1004 			if (ssid->ssid_len == ssid_len &&
1005 			    os_memcmp(ssid->ssid, pos, ssid_len) == 0) {
1006 				/* OWE BSS in transition mode for a currently
1007 				 * enabled OWE network. */
1008 				wpa_dbg(wpa_s, MSG_DEBUG,
1009 					"OWE: transition mode OWE SSID for active OWE profile");
1010 				bss->flags |= WPA_BSS_OWE_TRANSITION;
1011 				break;
1012 			}
1013 		}
1014 	}
1015 
1016 	if (bss->ssid_len > 0)
1017 		return;
1018 
1019 	open_bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
1020 	if (!open_bss)
1021 		return;
1022 	if (ssid_len != open_bss->ssid_len ||
1023 	    os_memcmp(pos, open_bss->ssid, ssid_len) != 0) {
1024 		wpa_dbg(wpa_s, MSG_DEBUG,
1025 			"OWE: transition mode SSID mismatch: %s",
1026 			wpa_ssid_txt(open_bss->ssid, open_bss->ssid_len));
1027 		return;
1028 	}
1029 
1030 	owe = wpa_bss_get_vendor_ie(open_bss, OWE_IE_VENDOR_TYPE);
1031 	if (!owe || wpa_bss_get_ie(open_bss, WLAN_EID_RSN)) {
1032 		wpa_dbg(wpa_s, MSG_DEBUG,
1033 			"OWE: transition mode open BSS unexpected info");
1034 		return;
1035 	}
1036 
1037 	pos = owe + 6;
1038 	end = owe + 2 + owe[1];
1039 
1040 	if (end - pos < ETH_ALEN + 1)
1041 		return;
1042 	if (os_memcmp(pos, bss->bssid, ETH_ALEN) != 0) {
1043 		wpa_dbg(wpa_s, MSG_DEBUG,
1044 			"OWE: transition mode BSSID mismatch: " MACSTR,
1045 			MAC2STR(pos));
1046 		return;
1047 	}
1048 	pos += ETH_ALEN;
1049 	ssid_len = *pos++;
1050 	if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN)
1051 		return;
1052 	wpa_dbg(wpa_s, MSG_DEBUG, "OWE: learned transition mode OWE SSID: %s",
1053 		wpa_ssid_txt(pos, ssid_len));
1054 	os_memcpy(bss->ssid, pos, ssid_len);
1055 	bss->ssid_len = ssid_len;
1056 	bss->flags |= WPA_BSS_OWE_TRANSITION;
1057 #endif /* CONFIG_OWE */
1058 }
1059 
1060 
disabled_freq(struct wpa_supplicant * wpa_s,int freq)1061 static int disabled_freq(struct wpa_supplicant *wpa_s, int freq)
1062 {
1063 	int i, j;
1064 
1065 	if (!wpa_s->hw.modes || !wpa_s->hw.num_modes)
1066 		return 0;
1067 
1068 	for (j = 0; j < wpa_s->hw.num_modes; j++) {
1069 		struct hostapd_hw_modes *mode = &wpa_s->hw.modes[j];
1070 
1071 		for (i = 0; i < mode->num_channels; i++) {
1072 			struct hostapd_channel_data *chan = &mode->channels[i];
1073 
1074 			if (chan->freq == freq)
1075 				return !!(chan->flag & HOSTAPD_CHAN_DISABLED);
1076 		}
1077 	}
1078 
1079 	return 1;
1080 }
1081 
1082 
wpa_scan_res_match(struct wpa_supplicant * wpa_s,int i,struct wpa_bss * bss,struct wpa_ssid * group,int only_first_ssid,int debug_print)1083 struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
1084 				     int i, struct wpa_bss *bss,
1085 				     struct wpa_ssid *group,
1086 				     int only_first_ssid, int debug_print)
1087 {
1088 	u8 wpa_ie_len, rsn_ie_len;
1089 	int wpa;
1090 	struct wpa_blacklist *e;
1091 	const u8 *ie;
1092 	struct wpa_ssid *ssid;
1093 	int osen, rsn_osen = 0;
1094 #ifdef CONFIG_MBO
1095 	const u8 *assoc_disallow;
1096 #endif /* CONFIG_MBO */
1097 	const u8 *match_ssid;
1098 	size_t match_ssid_len;
1099 	struct wpa_ie_data data;
1100 
1101 	ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1102 	wpa_ie_len = ie ? ie[1] : 0;
1103 
1104 	ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1105 	rsn_ie_len = ie ? ie[1] : 0;
1106 	if (ie && wpa_parse_wpa_ie_rsn(ie, 2 + ie[1], &data) == 0 &&
1107 	    (data.key_mgmt & WPA_KEY_MGMT_OSEN))
1108 		rsn_osen = 1;
1109 
1110 	ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
1111 	osen = ie != NULL;
1112 
1113 	if (debug_print) {
1114 		wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR
1115 			" ssid='%s' wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
1116 			i, MAC2STR(bss->bssid),
1117 			wpa_ssid_txt(bss->ssid, bss->ssid_len),
1118 			wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
1119 			bss->freq,
1120 			wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ?
1121 			" wps" : "",
1122 			(wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
1123 			 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE))
1124 			? " p2p" : "",
1125 			osen ? " osen=1" : "");
1126 	}
1127 
1128 	e = wpa_blacklist_get(wpa_s, bss->bssid);
1129 	if (e) {
1130 		int limit = 1;
1131 		if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
1132 			/*
1133 			 * When only a single network is enabled, we can
1134 			 * trigger blacklisting on the first failure. This
1135 			 * should not be done with multiple enabled networks to
1136 			 * avoid getting forced to move into a worse ESS on
1137 			 * single error if there are no other BSSes of the
1138 			 * current ESS.
1139 			 */
1140 			limit = 0;
1141 		}
1142 		if (e->count > limit) {
1143 			if (debug_print) {
1144 				wpa_dbg(wpa_s, MSG_DEBUG,
1145 					"   skip - blacklisted (count=%d limit=%d)",
1146 					e->count, limit);
1147 			}
1148 			return NULL;
1149 		}
1150 	}
1151 
1152 	match_ssid = bss->ssid;
1153 	match_ssid_len = bss->ssid_len;
1154 	owe_trans_ssid(wpa_s, bss, &match_ssid, &match_ssid_len);
1155 
1156 	if (match_ssid_len == 0) {
1157 		if (debug_print)
1158 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID not known");
1159 		return NULL;
1160 	}
1161 
1162 	if (disallowed_bssid(wpa_s, bss->bssid)) {
1163 		if (debug_print)
1164 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - BSSID disallowed");
1165 		return NULL;
1166 	}
1167 
1168 	if (disallowed_ssid(wpa_s, match_ssid, match_ssid_len)) {
1169 		if (debug_print)
1170 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID disallowed");
1171 		return NULL;
1172 	}
1173 
1174 	if (disabled_freq(wpa_s, bss->freq)) {
1175 		if (debug_print)
1176 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - channel disabled");
1177 		return NULL;
1178 	}
1179 
1180 	wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
1181 
1182 	for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
1183 		int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
1184 		int res;
1185 
1186 		if (wpas_network_disabled(wpa_s, ssid)) {
1187 			if (debug_print)
1188 				wpa_dbg(wpa_s, MSG_DEBUG, "   skip - disabled");
1189 			continue;
1190 		}
1191 
1192 		res = wpas_temp_disabled(wpa_s, ssid);
1193 		if (res > 0) {
1194 			if (debug_print)
1195 				wpa_dbg(wpa_s, MSG_DEBUG,
1196 					"   skip - disabled temporarily for %d second(s)",
1197 					res);
1198 			continue;
1199 		}
1200 
1201 #ifdef CONFIG_WPS
1202 		if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
1203 			if (debug_print)
1204 				wpa_dbg(wpa_s, MSG_DEBUG,
1205 					"   skip - blacklisted (WPS)");
1206 			continue;
1207 		}
1208 
1209 		if (wpa && ssid->ssid_len == 0 &&
1210 		    wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
1211 			check_ssid = 0;
1212 
1213 		if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
1214 			/* Only allow wildcard SSID match if an AP
1215 			 * advertises active WPS operation that matches
1216 			 * with our mode. */
1217 			check_ssid = 1;
1218 			if (ssid->ssid_len == 0 &&
1219 			    wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
1220 				check_ssid = 0;
1221 		}
1222 #endif /* CONFIG_WPS */
1223 
1224 		if (ssid->bssid_set && ssid->ssid_len == 0 &&
1225 		    os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
1226 			check_ssid = 0;
1227 
1228 		if (check_ssid &&
1229 		    (match_ssid_len != ssid->ssid_len ||
1230 		     os_memcmp(match_ssid, ssid->ssid, match_ssid_len) != 0)) {
1231 			if (debug_print)
1232 				wpa_dbg(wpa_s, MSG_DEBUG,
1233 					"   skip - SSID mismatch");
1234 			continue;
1235 		}
1236 
1237 		if (ssid->bssid_set &&
1238 		    os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
1239 			if (debug_print)
1240 				wpa_dbg(wpa_s, MSG_DEBUG,
1241 					"   skip - BSSID mismatch");
1242 			continue;
1243 		}
1244 
1245 		/* check blacklist */
1246 		if (ssid->num_bssid_blacklist &&
1247 		    addr_in_list(bss->bssid, ssid->bssid_blacklist,
1248 				 ssid->num_bssid_blacklist)) {
1249 			if (debug_print)
1250 				wpa_dbg(wpa_s, MSG_DEBUG,
1251 					"   skip - BSSID blacklisted");
1252 			continue;
1253 		}
1254 
1255 		/* if there is a whitelist, only accept those APs */
1256 		if (ssid->num_bssid_whitelist &&
1257 		    !addr_in_list(bss->bssid, ssid->bssid_whitelist,
1258 				  ssid->num_bssid_whitelist)) {
1259 			if (debug_print)
1260 				wpa_dbg(wpa_s, MSG_DEBUG,
1261 					"   skip - BSSID not in whitelist");
1262 			continue;
1263 		}
1264 
1265 		if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss,
1266 						   debug_print))
1267 			continue;
1268 
1269 		if (!osen && !wpa &&
1270 		    !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
1271 		    !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
1272 		    !(ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
1273 		    !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
1274 			if (debug_print)
1275 				wpa_dbg(wpa_s, MSG_DEBUG,
1276 					"   skip - non-WPA network not allowed");
1277 			continue;
1278 		}
1279 
1280 #ifdef CONFIG_WEP
1281 		if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
1282 		    has_wep_key(ssid)) {
1283 			if (debug_print)
1284 				wpa_dbg(wpa_s, MSG_DEBUG,
1285 					"   skip - ignore WPA/WPA2 AP for WEP network block");
1286 			continue;
1287 		}
1288 #endif /* CONFIG_WEP */
1289 
1290 		if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen &&
1291 		    !rsn_osen) {
1292 			if (debug_print)
1293 				wpa_dbg(wpa_s, MSG_DEBUG,
1294 					"   skip - non-OSEN network not allowed");
1295 			continue;
1296 		}
1297 
1298 		if (!wpa_supplicant_match_privacy(bss, ssid)) {
1299 			if (debug_print)
1300 				wpa_dbg(wpa_s, MSG_DEBUG,
1301 					"   skip - privacy mismatch");
1302 			continue;
1303 		}
1304 
1305 		if (ssid->mode != WPAS_MODE_MESH && !bss_is_ess(bss) &&
1306 		    !bss_is_pbss(bss)) {
1307 			if (debug_print)
1308 				wpa_dbg(wpa_s, MSG_DEBUG,
1309 					"   skip - not ESS, PBSS, or MBSS");
1310 			continue;
1311 		}
1312 
1313 		if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) {
1314 			if (debug_print)
1315 				wpa_dbg(wpa_s, MSG_DEBUG,
1316 					"   skip - PBSS mismatch (ssid %d bss %d)",
1317 					ssid->pbss, bss_is_pbss(bss));
1318 			continue;
1319 		}
1320 
1321 		if (!freq_allowed(ssid->freq_list, bss->freq)) {
1322 			if (debug_print)
1323 				wpa_dbg(wpa_s, MSG_DEBUG,
1324 					"   skip - frequency not allowed");
1325 			continue;
1326 		}
1327 
1328 #ifdef CONFIG_MESH
1329 		if (ssid->mode == WPAS_MODE_MESH && ssid->frequency > 0 &&
1330 		    ssid->frequency != bss->freq) {
1331 			if (debug_print)
1332 				wpa_dbg(wpa_s, MSG_DEBUG,
1333 					"   skip - frequency not allowed (mesh)");
1334 			continue;
1335 		}
1336 #endif /* CONFIG_MESH */
1337 
1338 		if (!rate_match(wpa_s, ssid, bss, debug_print)) {
1339 			if (debug_print)
1340 				wpa_dbg(wpa_s, MSG_DEBUG,
1341 					"   skip - rate sets do not match");
1342 			continue;
1343 		}
1344 
1345 #ifdef CONFIG_SAE
1346 		if ((wpa_s->conf->sae_pwe == 1 || ssid->sae_password_id) &&
1347 		    wpa_s->conf->sae_pwe != 3 &&
1348 		    wpa_key_mgmt_sae(ssid->key_mgmt) &&
1349 		    (!(ie = wpa_bss_get_ie(bss, WLAN_EID_RSNX)) ||
1350 		     ie[1] < 1 ||
1351 		     !(ie[2] & BIT(WLAN_RSNX_CAPAB_SAE_H2E)))) {
1352 			if (debug_print)
1353 				wpa_dbg(wpa_s, MSG_DEBUG,
1354 					"   skip - SAE H2E required, but not supported by the AP");
1355 			continue;
1356 		}
1357 #endif /* CONFIG_SAE */
1358 
1359 #ifndef CONFIG_IBSS_RSN
1360 		if (ssid->mode == WPAS_MODE_IBSS &&
1361 		    !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE |
1362 					WPA_KEY_MGMT_WPA_NONE))) {
1363 			if (debug_print)
1364 				wpa_dbg(wpa_s, MSG_DEBUG,
1365 					"   skip - IBSS RSN not supported in the build");
1366 			continue;
1367 		}
1368 #endif /* !CONFIG_IBSS_RSN */
1369 
1370 #ifdef CONFIG_P2P
1371 		if (ssid->p2p_group &&
1372 		    !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1373 		    !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1374 			if (debug_print)
1375 				wpa_dbg(wpa_s, MSG_DEBUG,
1376 					"   skip - no P2P IE seen");
1377 			continue;
1378 		}
1379 
1380 		if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1381 			struct wpabuf *p2p_ie;
1382 			u8 dev_addr[ETH_ALEN];
1383 
1384 			ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1385 			if (ie == NULL) {
1386 				if (debug_print)
1387 					wpa_dbg(wpa_s, MSG_DEBUG,
1388 						"   skip - no P2P element");
1389 				continue;
1390 			}
1391 			p2p_ie = wpa_bss_get_vendor_ie_multi(
1392 				bss, P2P_IE_VENDOR_TYPE);
1393 			if (p2p_ie == NULL) {
1394 				if (debug_print)
1395 					wpa_dbg(wpa_s, MSG_DEBUG,
1396 						"   skip - could not fetch P2P element");
1397 				continue;
1398 			}
1399 
1400 			if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
1401 			    || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
1402 					 ETH_ALEN) != 0) {
1403 				if (debug_print)
1404 					wpa_dbg(wpa_s, MSG_DEBUG,
1405 						"   skip - no matching GO P2P Device Address in P2P element");
1406 				wpabuf_free(p2p_ie);
1407 				continue;
1408 			}
1409 			wpabuf_free(p2p_ie);
1410 		}
1411 
1412 		/*
1413 		 * TODO: skip the AP if its P2P IE has Group Formation
1414 		 * bit set in the P2P Group Capability Bitmap and we
1415 		 * are not in Group Formation with that device.
1416 		 */
1417 #endif /* CONFIG_P2P */
1418 
1419 		if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time))
1420 		{
1421 			struct os_reltime diff;
1422 
1423 			os_reltime_sub(&wpa_s->scan_min_time,
1424 				       &bss->last_update, &diff);
1425 			if (debug_print)
1426 				wpa_dbg(wpa_s, MSG_DEBUG,
1427 					"   skip - scan result not recent enough (%u.%06u seconds too old)",
1428 				(unsigned int) diff.sec,
1429 				(unsigned int) diff.usec);
1430 			continue;
1431 		}
1432 #ifdef CONFIG_MBO
1433 #ifdef CONFIG_TESTING_OPTIONS
1434 		if (wpa_s->ignore_assoc_disallow)
1435 			goto skip_assoc_disallow;
1436 #endif /* CONFIG_TESTING_OPTIONS */
1437 		assoc_disallow = wpas_mbo_get_bss_attr(
1438 			bss, MBO_ATTR_ID_ASSOC_DISALLOW);
1439 		if (assoc_disallow && assoc_disallow[1] >= 1) {
1440 			if (debug_print)
1441 				wpa_dbg(wpa_s, MSG_DEBUG,
1442 					"   skip - MBO association disallowed (reason %u)",
1443 				assoc_disallow[2]);
1444 			continue;
1445 		}
1446 
1447 		if (wpa_is_bss_tmp_disallowed(wpa_s, bss)) {
1448 			if (debug_print)
1449 				wpa_dbg(wpa_s, MSG_DEBUG,
1450 					"   skip - AP temporarily disallowed");
1451 			continue;
1452 		}
1453 #ifdef CONFIG_TESTING_OPTIONS
1454 	skip_assoc_disallow:
1455 #endif /* CONFIG_TESTING_OPTIONS */
1456 #endif /* CONFIG_MBO */
1457 
1458 #ifdef CONFIG_DPP
1459 		if ((ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
1460 		    !wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, ssid) &&
1461 		    (!ssid->dpp_connector ||
1462 		     !ssid->dpp_netaccesskey ||
1463 		     !ssid->dpp_csign)) {
1464 			if (debug_print)
1465 				wpa_dbg(wpa_s, MSG_DEBUG,
1466 					"   skip - no PMKSA entry for DPP");
1467 			continue;
1468 		}
1469 #endif /* CONFIG_DPP */
1470 
1471 		/* Matching configuration found */
1472 		return ssid;
1473 	}
1474 
1475 	/* No matching configuration found */
1476 	return NULL;
1477 }
1478 
1479 
1480 static struct wpa_bss *
wpa_supplicant_select_bss(struct wpa_supplicant * wpa_s,struct wpa_ssid * group,struct wpa_ssid ** selected_ssid,int only_first_ssid)1481 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1482 			  struct wpa_ssid *group,
1483 			  struct wpa_ssid **selected_ssid,
1484 			  int only_first_ssid)
1485 {
1486 	unsigned int i;
1487 
1488 	if (wpa_s->current_ssid) {
1489 		struct wpa_ssid *ssid;
1490 
1491 		wpa_dbg(wpa_s, MSG_DEBUG,
1492 			"Scan results matching the currently selected network");
1493 		for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1494 			struct wpa_bss *bss = wpa_s->last_scan_res[i];
1495 
1496 			ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1497 						  only_first_ssid, 0);
1498 			if (ssid != wpa_s->current_ssid)
1499 				continue;
1500 			wpa_dbg(wpa_s, MSG_DEBUG, "%u: " MACSTR
1501 				" freq=%d level=%d snr=%d est_throughput=%u",
1502 				i, MAC2STR(bss->bssid), bss->freq, bss->level,
1503 				bss->snr, bss->est_throughput);
1504 		}
1505 	}
1506 
1507 	if (only_first_ssid)
1508 		wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1509 			group->id);
1510 	else
1511 		wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1512 			group->priority);
1513 
1514 	for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1515 		struct wpa_bss *bss = wpa_s->last_scan_res[i];
1516 
1517 		wpa_s->owe_transition_select = 1;
1518 		*selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1519 						    only_first_ssid, 1);
1520 		wpa_s->owe_transition_select = 0;
1521 		if (!*selected_ssid)
1522 			continue;
1523 		wpa_dbg(wpa_s, MSG_DEBUG, "   selected %sBSS " MACSTR
1524 			" ssid='%s'",
1525 			bss == wpa_s->current_bss ? "current ": "",
1526 			MAC2STR(bss->bssid),
1527 			wpa_ssid_txt(bss->ssid, bss->ssid_len));
1528 		return bss;
1529 	}
1530 
1531 	return NULL;
1532 }
1533 
1534 
wpa_supplicant_pick_network(struct wpa_supplicant * wpa_s,struct wpa_ssid ** selected_ssid)1535 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1536 					     struct wpa_ssid **selected_ssid)
1537 {
1538 	struct wpa_bss *selected = NULL;
1539 	size_t prio;
1540 	struct wpa_ssid *next_ssid = NULL;
1541 	struct wpa_ssid *ssid;
1542 
1543 	if (wpa_s->last_scan_res == NULL ||
1544 	    wpa_s->last_scan_res_used == 0)
1545 		return NULL; /* no scan results from last update */
1546 
1547 	if (wpa_s->next_ssid) {
1548 		/* check that next_ssid is still valid */
1549 		for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1550 			if (ssid == wpa_s->next_ssid)
1551 				break;
1552 		}
1553 		next_ssid = ssid;
1554 		wpa_s->next_ssid = NULL;
1555 	}
1556 
1557 	while (selected == NULL) {
1558 		for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1559 			if (next_ssid && next_ssid->priority ==
1560 			    wpa_s->conf->pssid[prio]->priority) {
1561 				selected = wpa_supplicant_select_bss(
1562 					wpa_s, next_ssid, selected_ssid, 1);
1563 				if (selected)
1564 					break;
1565 			}
1566 			selected = wpa_supplicant_select_bss(
1567 				wpa_s, wpa_s->conf->pssid[prio],
1568 				selected_ssid, 0);
1569 			if (selected)
1570 				break;
1571 		}
1572 
1573 		if (selected == NULL && wpa_s->blacklist &&
1574 		    !wpa_s->countermeasures) {
1575 			wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1576 				"blacklist and try again");
1577 			wpa_blacklist_clear(wpa_s);
1578 			wpa_s->blacklist_cleared++;
1579 		} else if (selected == NULL)
1580 			break;
1581 	}
1582 
1583 	ssid = *selected_ssid;
1584 	if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1585 	    !ssid->passphrase && !ssid->ext_psk) {
1586 		const char *field_name, *txt = NULL;
1587 
1588 		wpa_dbg(wpa_s, MSG_DEBUG,
1589 			"PSK/passphrase not yet available for the selected network");
1590 
1591 		wpas_notify_network_request(wpa_s, ssid,
1592 					    WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1593 
1594 		field_name = wpa_supplicant_ctrl_req_to_string(
1595 			WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1596 		if (field_name == NULL)
1597 			return NULL;
1598 
1599 		wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1600 
1601 		selected = NULL;
1602 	}
1603 
1604 	return selected;
1605 }
1606 
1607 
wpa_supplicant_req_new_scan(struct wpa_supplicant * wpa_s,int timeout_sec,int timeout_usec)1608 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1609 					int timeout_sec, int timeout_usec)
1610 {
1611 	if (!wpa_supplicant_enabled_networks(wpa_s)) {
1612 		/*
1613 		 * No networks are enabled; short-circuit request so
1614 		 * we don't wait timeout seconds before transitioning
1615 		 * to INACTIVE state.
1616 		 */
1617 		wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1618 			"since there are no enabled networks");
1619 		wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1620 		return;
1621 	}
1622 
1623 	wpa_s->scan_for_connection = 1;
1624 	wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1625 }
1626 
1627 
wpa_supplicant_connect(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)1628 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1629 			   struct wpa_bss *selected,
1630 			   struct wpa_ssid *ssid)
1631 {
1632 	if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1633 		wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1634 			"PBC session overlap");
1635 		wpas_notify_wps_event_pbc_overlap(wpa_s);
1636 #ifdef CONFIG_P2P
1637 		if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1638 		    wpa_s->p2p_in_provisioning) {
1639 			eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1640 					       wpa_s, NULL);
1641 			return -1;
1642 		}
1643 #endif /* CONFIG_P2P */
1644 
1645 #ifdef CONFIG_WPS
1646 		wpas_wps_pbc_overlap(wpa_s);
1647 		wpas_wps_cancel(wpa_s);
1648 #endif /* CONFIG_WPS */
1649 		return -1;
1650 	}
1651 
1652 	wpa_msg(wpa_s, MSG_DEBUG,
1653 		"Considering connect request: reassociate: %d  selected: "
1654 		MACSTR "  bssid: " MACSTR "  pending: " MACSTR
1655 		"  wpa_state: %s  ssid=%p  current_ssid=%p",
1656 		wpa_s->reassociate, MAC2STR(selected->bssid),
1657 		MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1658 		wpa_supplicant_state_txt(wpa_s->wpa_state),
1659 		ssid, wpa_s->current_ssid);
1660 
1661 	/*
1662 	 * Do not trigger new association unless the BSSID has changed or if
1663 	 * reassociation is requested. If we are in process of associating with
1664 	 * the selected BSSID, do not trigger new attempt.
1665 	 */
1666 	if (wpa_s->reassociate ||
1667 	    (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1668 	     ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1669 	       wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1670 	      (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1671 	       os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1672 	       0) ||
1673 	      (is_zero_ether_addr(wpa_s->pending_bssid) &&
1674 	       ssid != wpa_s->current_ssid)))) {
1675 		if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1676 			wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1677 			return 0;
1678 		}
1679 		wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1680 			MAC2STR(selected->bssid));
1681 		wpa_supplicant_associate(wpa_s, selected, ssid);
1682 	} else {
1683 		wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1684 			"connect with the selected AP");
1685 	}
1686 
1687 	return 0;
1688 }
1689 
1690 
1691 static struct wpa_ssid *
wpa_supplicant_pick_new_network(struct wpa_supplicant * wpa_s)1692 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1693 {
1694 	size_t prio;
1695 	struct wpa_ssid *ssid;
1696 
1697 	for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1698 		for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1699 		{
1700 			if (wpas_network_disabled(wpa_s, ssid))
1701 				continue;
1702 #ifndef CONFIG_IBSS_RSN
1703 			if (ssid->mode == WPAS_MODE_IBSS &&
1704 			    !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE |
1705 						WPA_KEY_MGMT_WPA_NONE))) {
1706 				wpa_msg(wpa_s, MSG_INFO,
1707 					"IBSS RSN not supported in the build - cannot use the profile for SSID '%s'",
1708 					wpa_ssid_txt(ssid->ssid,
1709 						     ssid->ssid_len));
1710 				continue;
1711 			}
1712 #endif /* !CONFIG_IBSS_RSN */
1713 			if (ssid->mode == WPAS_MODE_IBSS ||
1714 			    ssid->mode == WPAS_MODE_AP ||
1715 			    ssid->mode == WPAS_MODE_MESH)
1716 				return ssid;
1717 		}
1718 	}
1719 	return NULL;
1720 }
1721 
1722 
1723 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1724  * on BSS added and BSS changed events */
wpa_supplicant_rsn_preauth_scan_results(struct wpa_supplicant * wpa_s)1725 static void wpa_supplicant_rsn_preauth_scan_results(
1726 	struct wpa_supplicant *wpa_s)
1727 {
1728 	struct wpa_bss *bss;
1729 
1730 	if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1731 		return;
1732 
1733 	dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1734 		const u8 *ssid, *rsn;
1735 
1736 		ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1737 		if (ssid == NULL)
1738 			continue;
1739 
1740 		rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1741 		if (rsn == NULL)
1742 			continue;
1743 
1744 		rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1745 	}
1746 
1747 }
1748 
1749 
1750 #ifndef CONFIG_NO_ROAMING
1751 
wpas_get_snr_signal_info(u32 frequency,int avg_signal,int noise)1752 static int wpas_get_snr_signal_info(u32 frequency, int avg_signal, int noise)
1753 {
1754 	if (noise == WPA_INVALID_NOISE)
1755 		noise = IS_5GHZ(frequency) ? DEFAULT_NOISE_FLOOR_5GHZ :
1756 			DEFAULT_NOISE_FLOOR_2GHZ;
1757 	return avg_signal - noise;
1758 }
1759 
1760 
1761 static unsigned int
wpas_get_est_throughput_from_bss_snr(const struct wpa_supplicant * wpa_s,const struct wpa_bss * bss,int snr)1762 wpas_get_est_throughput_from_bss_snr(const struct wpa_supplicant *wpa_s,
1763 				     const struct wpa_bss *bss, int snr)
1764 {
1765 	int rate = wpa_bss_get_max_rate(bss);
1766 	const u8 *ies = (const void *) (bss + 1);
1767 	size_t ie_len = bss->ie_len ? bss->ie_len : bss->beacon_ie_len;
1768 
1769 	return wpas_get_est_tpt(wpa_s, ies, ie_len, rate, snr);
1770 }
1771 
1772 #endif /* CONFIG_NO_ROAMING */
1773 
1774 
wpa_supplicant_need_to_roam(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)1775 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1776 				       struct wpa_bss *selected,
1777 				       struct wpa_ssid *ssid)
1778 {
1779 	struct wpa_bss *current_bss = NULL;
1780 #ifndef CONFIG_NO_ROAMING
1781 	int min_diff, diff;
1782 	int to_5ghz;
1783 	int cur_level;
1784 	unsigned int cur_est, sel_est;
1785 	struct wpa_signal_info si;
1786 	int cur_snr = 0;
1787 #endif /* CONFIG_NO_ROAMING */
1788 
1789 	if (wpa_s->reassociate)
1790 		return 1; /* explicit request to reassociate */
1791 	if (wpa_s->wpa_state < WPA_ASSOCIATED)
1792 		return 1; /* we are not associated; continue */
1793 	if (wpa_s->current_ssid == NULL)
1794 		return 1; /* unknown current SSID */
1795 	if (wpa_s->current_ssid != ssid)
1796 		return 1; /* different network block */
1797 
1798 	if (wpas_driver_bss_selection(wpa_s))
1799 		return 0; /* Driver-based roaming */
1800 
1801 	if (wpa_s->current_ssid->ssid)
1802 		current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1803 					  wpa_s->current_ssid->ssid,
1804 					  wpa_s->current_ssid->ssid_len);
1805 	if (!current_bss)
1806 		current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1807 
1808 	if (!current_bss)
1809 		return 1; /* current BSS not seen in scan results */
1810 
1811 	if (current_bss == selected)
1812 		return 0;
1813 
1814 	if (selected->last_update_idx > current_bss->last_update_idx)
1815 		return 1; /* current BSS not seen in the last scan */
1816 
1817 #ifndef CONFIG_NO_ROAMING
1818 	wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1819 	wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1820 		" freq=%d level=%d snr=%d est_throughput=%u",
1821 		MAC2STR(current_bss->bssid),
1822 		current_bss->freq, current_bss->level,
1823 		current_bss->snr, current_bss->est_throughput);
1824 	wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1825 		" freq=%d level=%d snr=%d est_throughput=%u",
1826 		MAC2STR(selected->bssid), selected->freq, selected->level,
1827 		selected->snr, selected->est_throughput);
1828 
1829 	if (wpa_s->current_ssid->bssid_set &&
1830 	    os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1831 	    0) {
1832 		wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1833 			"has preferred BSSID");
1834 		return 1;
1835 	}
1836 
1837 	cur_level = current_bss->level;
1838 	cur_est = current_bss->est_throughput;
1839 	sel_est = selected->est_throughput;
1840 
1841 	/*
1842 	 * Try to poll the signal from the driver since this will allow to get
1843 	 * more accurate values. In some cases, there can be big differences
1844 	 * between the RSSI of the Probe Response frames of the AP we are
1845 	 * associated with and the Beacon frames we hear from the same AP after
1846 	 * association. This can happen, e.g., when there are two antennas that
1847 	 * hear the AP very differently. If the driver chooses to hear the
1848 	 * Probe Response frames during the scan on the "bad" antenna because
1849 	 * it wants to save power, but knows to choose the other antenna after
1850 	 * association, we will hear our AP with a low RSSI as part of the
1851 	 * scan even when we can hear it decently on the other antenna. To cope
1852 	 * with this, ask the driver to teach us how it hears the AP. Also, the
1853 	 * scan results may be a bit old, since we can very quickly get fresh
1854 	 * information about our currently associated AP.
1855 	 */
1856 	if (wpa_drv_signal_poll(wpa_s, &si) == 0 &&
1857 	    (si.avg_beacon_signal || si.avg_signal)) {
1858 		cur_level = si.avg_beacon_signal ? si.avg_beacon_signal :
1859 			si.avg_signal;
1860 		cur_snr = wpas_get_snr_signal_info(si.frequency, cur_level,
1861 						   si.current_noise);
1862 
1863 		cur_est = wpas_get_est_throughput_from_bss_snr(wpa_s,
1864 							       current_bss,
1865 							       cur_snr);
1866 		wpa_dbg(wpa_s, MSG_DEBUG,
1867 			"Using signal poll values for the current BSS: level=%d snr=%d est_throughput=%u",
1868 			cur_level, cur_snr, cur_est);
1869 	}
1870 
1871 	if (sel_est > cur_est + 5000) {
1872 		wpa_dbg(wpa_s, MSG_DEBUG,
1873 			"Allow reassociation - selected BSS has better estimated throughput");
1874 		return 1;
1875 	}
1876 
1877 	to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
1878 
1879 	if (cur_level < 0 && cur_level > selected->level + to_5ghz * 2 &&
1880 	    sel_est < cur_est * 1.2) {
1881 		wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1882 			"signal level");
1883 		return 0;
1884 	}
1885 
1886 	if (cur_est > sel_est + 5000) {
1887 		wpa_dbg(wpa_s, MSG_DEBUG,
1888 			"Skip roam - Current BSS has better estimated throughput");
1889 		return 0;
1890 	}
1891 
1892 	if (cur_snr > GREAT_SNR) {
1893 		wpa_dbg(wpa_s, MSG_DEBUG,
1894 			"Skip roam - Current BSS has good SNR (%u > %u)",
1895 			cur_snr, GREAT_SNR);
1896 		return 0;
1897 	}
1898 
1899 	if (cur_level < -85) /* ..-86 dBm */
1900 		min_diff = 1;
1901 	else if (cur_level < -80) /* -85..-81 dBm */
1902 		min_diff = 2;
1903 	else if (cur_level < -75) /* -80..-76 dBm */
1904 		min_diff = 3;
1905 	else if (cur_level < -70) /* -75..-71 dBm */
1906 		min_diff = 4;
1907 	else if (cur_level < 0) /* -70..-1 dBm */
1908 		min_diff = 5;
1909 	else /* unspecified units (not in dBm) */
1910 		min_diff = 2;
1911 
1912 	if (cur_est > sel_est * 1.5)
1913 		min_diff += 10;
1914 	else if (cur_est > sel_est * 1.2)
1915 		min_diff += 5;
1916 	else if (cur_est > sel_est * 1.1)
1917 		min_diff += 2;
1918 	else if (cur_est > sel_est)
1919 		min_diff++;
1920 	else if (sel_est > cur_est * 1.5)
1921 		min_diff -= 10;
1922 	else if (sel_est > cur_est * 1.2)
1923 		min_diff -= 5;
1924 	else if (sel_est > cur_est * 1.1)
1925 		min_diff -= 2;
1926 	else if (sel_est > cur_est)
1927 		min_diff--;
1928 
1929 	if (to_5ghz)
1930 		min_diff -= 2;
1931 	diff = selected->level - cur_level;
1932 	if (diff < min_diff) {
1933 		wpa_dbg(wpa_s, MSG_DEBUG,
1934 			"Skip roam - too small difference in signal level (%d < %d)",
1935 			diff, min_diff);
1936 		return 0;
1937 	}
1938 
1939 	wpa_dbg(wpa_s, MSG_DEBUG,
1940 		"Allow reassociation due to difference in signal level (%d >= %d)",
1941 		diff, min_diff);
1942 	return 1;
1943 #else /* CONFIG_NO_ROAMING */
1944 	return 0;
1945 #endif /* CONFIG_NO_ROAMING */
1946 }
1947 
1948 
1949 /*
1950  * Return a negative value if no scan results could be fetched or if scan
1951  * results should not be shared with other virtual interfaces.
1952  * Return 0 if scan results were fetched and may be shared with other
1953  * interfaces.
1954  * Return 1 if scan results may be shared with other virtual interfaces but may
1955  * not trigger any operations.
1956  * Return 2 if the interface was removed and cannot be used.
1957  */
_wpa_supplicant_event_scan_results(struct wpa_supplicant * wpa_s,union wpa_event_data * data,int own_request,int update_only)1958 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1959 					      union wpa_event_data *data,
1960 					      int own_request, int update_only)
1961 {
1962 	struct wpa_scan_results *scan_res = NULL;
1963 	int ret = 0;
1964 	int ap = 0;
1965 #ifndef CONFIG_NO_RANDOM_POOL
1966 	size_t i, num;
1967 #endif /* CONFIG_NO_RANDOM_POOL */
1968 
1969 #ifdef CONFIG_AP
1970 	if (wpa_s->ap_iface)
1971 		ap = 1;
1972 #endif /* CONFIG_AP */
1973 
1974 	wpa_supplicant_notify_scanning(wpa_s, 0);
1975 
1976 	scan_res = wpa_supplicant_get_scan_results(wpa_s,
1977 						   data ? &data->scan_info :
1978 						   NULL, 1);
1979 	if (scan_res == NULL) {
1980 		if (wpa_s->conf->ap_scan == 2 || ap ||
1981 		    wpa_s->scan_res_handler == scan_only_handler)
1982 			return -1;
1983 		if (!own_request)
1984 			return -1;
1985 		if (data && data->scan_info.external_scan)
1986 			return -1;
1987 		wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1988 			"scanning again");
1989 		wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1990 		ret = -1;
1991 		goto scan_work_done;
1992 	}
1993 
1994 #ifndef CONFIG_NO_RANDOM_POOL
1995 	num = scan_res->num;
1996 	if (num > 10)
1997 		num = 10;
1998 	for (i = 0; i < num; i++) {
1999 		u8 buf[5];
2000 		struct wpa_scan_res *res = scan_res->res[i];
2001 		buf[0] = res->bssid[5];
2002 		buf[1] = res->qual & 0xff;
2003 		buf[2] = res->noise & 0xff;
2004 		buf[3] = res->level & 0xff;
2005 		buf[4] = res->tsf & 0xff;
2006 		random_add_randomness(buf, sizeof(buf));
2007 	}
2008 #endif /* CONFIG_NO_RANDOM_POOL */
2009 
2010 	if (update_only) {
2011 		ret = 1;
2012 		goto scan_work_done;
2013 	}
2014 
2015 	if (own_request && wpa_s->scan_res_handler &&
2016 	    !(data && data->scan_info.external_scan)) {
2017 		void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
2018 					 struct wpa_scan_results *scan_res);
2019 
2020 		scan_res_handler = wpa_s->scan_res_handler;
2021 		wpa_s->scan_res_handler = NULL;
2022 		scan_res_handler(wpa_s, scan_res);
2023 		ret = 1;
2024 		goto scan_work_done;
2025 	}
2026 
2027 	wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
2028 		wpa_s->own_scan_running,
2029 		data ? data->scan_info.external_scan : 0);
2030 	if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
2031 	    wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
2032 	    own_request && !(data && data->scan_info.external_scan)) {
2033 		wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
2034 			     wpa_s->manual_scan_id);
2035 		wpa_s->manual_scan_use_id = 0;
2036 	} else {
2037 		wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
2038 	}
2039 	wpas_notify_scan_results(wpa_s);
2040 
2041 	wpas_notify_scan_done(wpa_s, 1);
2042 
2043 	if (ap) {
2044 		wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
2045 #ifdef CONFIG_AP
2046 		if (wpa_s->ap_iface->scan_cb)
2047 			wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
2048 #endif /* CONFIG_AP */
2049 		goto scan_work_done;
2050 	}
2051 
2052 	if (data && data->scan_info.external_scan) {
2053 		wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
2054 		wpa_scan_results_free(scan_res);
2055 		return 0;
2056 	}
2057 
2058 	if (wnm_scan_process(wpa_s, 1) > 0)
2059 		goto scan_work_done;
2060 
2061 	if (sme_proc_obss_scan(wpa_s, scan_res) > 0)
2062 		goto scan_work_done;
2063 
2064 	if (own_request && data &&
2065 	    wpas_beacon_rep_scan_process(wpa_s, scan_res, &data->scan_info) > 0)
2066 		goto scan_work_done;
2067 
2068 	if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
2069 		goto scan_work_done;
2070 
2071 	if (autoscan_notify_scan(wpa_s, scan_res))
2072 		goto scan_work_done;
2073 
2074 	if (wpa_s->disconnected) {
2075 		wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2076 		goto scan_work_done;
2077 	}
2078 
2079 	if (!wpas_driver_bss_selection(wpa_s) &&
2080 	    bgscan_notify_scan(wpa_s, scan_res) == 1)
2081 		goto scan_work_done;
2082 
2083 	wpas_wps_update_ap_info(wpa_s, scan_res);
2084 
2085 	if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
2086 	    wpa_s->wpa_state < WPA_COMPLETED)
2087 		goto scan_work_done;
2088 
2089 	wpa_scan_results_free(scan_res);
2090 
2091 	if (own_request && wpa_s->scan_work) {
2092 		struct wpa_radio_work *work = wpa_s->scan_work;
2093 		wpa_s->scan_work = NULL;
2094 		radio_work_done(work);
2095 	}
2096 
2097 	os_free(wpa_s->last_scan_freqs);
2098 	wpa_s->last_scan_freqs = NULL;
2099 	wpa_s->num_last_scan_freqs = 0;
2100 	if (own_request && data &&
2101 	    data->scan_info.freqs && data->scan_info.num_freqs) {
2102 		wpa_s->last_scan_freqs = os_malloc(sizeof(int) *
2103 						   data->scan_info.num_freqs);
2104 		if (wpa_s->last_scan_freqs) {
2105 			os_memcpy(wpa_s->last_scan_freqs,
2106 				  data->scan_info.freqs,
2107 				  sizeof(int) * data->scan_info.num_freqs);
2108 			wpa_s->num_last_scan_freqs = data->scan_info.num_freqs;
2109 		}
2110 	}
2111 
2112 	return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
2113 
2114 scan_work_done:
2115 	wpa_scan_results_free(scan_res);
2116 	if (own_request && wpa_s->scan_work) {
2117 		struct wpa_radio_work *work = wpa_s->scan_work;
2118 		wpa_s->scan_work = NULL;
2119 		radio_work_done(work);
2120 	}
2121 	return ret;
2122 }
2123 
2124 
wpas_select_network_from_last_scan(struct wpa_supplicant * wpa_s,int new_scan,int own_request)2125 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
2126 					      int new_scan, int own_request)
2127 {
2128 	struct wpa_bss *selected;
2129 	struct wpa_ssid *ssid = NULL;
2130 	int time_to_reenable = wpas_reenabled_network_time(wpa_s);
2131 
2132 	if (time_to_reenable > 0) {
2133 		wpa_dbg(wpa_s, MSG_DEBUG,
2134 			"Postpone network selection by %d seconds since all networks are disabled",
2135 			time_to_reenable);
2136 		eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2137 		eloop_register_timeout(time_to_reenable, 0,
2138 				       wpas_network_reenabled, wpa_s, NULL);
2139 		return 0;
2140 	}
2141 
2142 	if (wpa_s->p2p_mgmt)
2143 		return 0; /* no normal connection on p2p_mgmt interface */
2144 
2145 	wpa_s->owe_transition_search = 0;
2146 	selected = wpa_supplicant_pick_network(wpa_s, &ssid);
2147 
2148 #ifdef CONFIG_MESH
2149 	if (wpa_s->ifmsh) {
2150 		wpa_msg(wpa_s, MSG_INFO,
2151 			"Avoiding join because we already joined a mesh group");
2152 		return 0;
2153 	}
2154 #endif /* CONFIG_MESH */
2155 
2156 	if (selected) {
2157 		int skip;
2158 		skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
2159 		if (skip) {
2160 			if (new_scan)
2161 				wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2162 			return 0;
2163 		}
2164 
2165 		wpa_s->suitable_network++;
2166 
2167 		if (ssid != wpa_s->current_ssid &&
2168 		    wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2169 			wpa_s->own_disconnect_req = 1;
2170 			wpa_supplicant_deauthenticate(
2171 				wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2172 		}
2173 
2174 		if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
2175 			wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
2176 			return -1;
2177 		}
2178 		if (new_scan)
2179 			wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2180 		/*
2181 		 * Do not allow other virtual radios to trigger operations based
2182 		 * on these scan results since we do not want them to start
2183 		 * other associations at the same time.
2184 		 */
2185 		return 1;
2186 	} else {
2187 		wpa_s->no_suitable_network++;
2188 		wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
2189 		ssid = wpa_supplicant_pick_new_network(wpa_s);
2190 		if (ssid) {
2191 			wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
2192 			wpa_supplicant_associate(wpa_s, NULL, ssid);
2193 			if (new_scan)
2194 				wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2195 		} else if (own_request) {
2196 			/*
2197 			 * No SSID found. If SCAN results are as a result of
2198 			 * own scan request and not due to a scan request on
2199 			 * another shared interface, try another scan.
2200 			 */
2201 			int timeout_sec = wpa_s->scan_interval;
2202 			int timeout_usec = 0;
2203 #ifdef CONFIG_P2P
2204 			int res;
2205 
2206 			res = wpas_p2p_scan_no_go_seen(wpa_s);
2207 			if (res == 2)
2208 				return 2;
2209 			if (res == 1)
2210 				return 0;
2211 
2212 			if (wpa_s->p2p_in_provisioning ||
2213 			    wpa_s->show_group_started ||
2214 			    wpa_s->p2p_in_invitation) {
2215 				/*
2216 				 * Use shorter wait during P2P Provisioning
2217 				 * state and during P2P join-a-group operation
2218 				 * to speed up group formation.
2219 				 */
2220 				timeout_sec = 0;
2221 				timeout_usec = 250000;
2222 				wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2223 							    timeout_usec);
2224 				return 0;
2225 			}
2226 #endif /* CONFIG_P2P */
2227 #ifdef CONFIG_INTERWORKING
2228 			if (wpa_s->conf->auto_interworking &&
2229 			    wpa_s->conf->interworking &&
2230 			    wpa_s->conf->cred) {
2231 				wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
2232 					"start ANQP fetch since no matching "
2233 					"networks found");
2234 				wpa_s->network_select = 1;
2235 				wpa_s->auto_network_select = 1;
2236 				interworking_start_fetch_anqp(wpa_s);
2237 				return 1;
2238 			}
2239 #endif /* CONFIG_INTERWORKING */
2240 #ifdef CONFIG_WPS
2241 			if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
2242 				wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
2243 				timeout_sec = 0;
2244 				timeout_usec = 500000;
2245 				wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2246 							    timeout_usec);
2247 				return 0;
2248 			}
2249 #endif /* CONFIG_WPS */
2250 #ifdef CONFIG_OWE
2251 			if (wpa_s->owe_transition_search) {
2252 				wpa_dbg(wpa_s, MSG_DEBUG,
2253 					"OWE: Use shorter wait during transition mode search");
2254 				timeout_sec = 0;
2255 				timeout_usec = 500000;
2256 				wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2257 							    timeout_usec);
2258 				return 0;
2259 			}
2260 #endif /* CONFIG_OWE */
2261 			if (wpa_supplicant_req_sched_scan(wpa_s))
2262 				wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2263 							    timeout_usec);
2264 
2265 			wpa_msg_ctrl(wpa_s, MSG_INFO,
2266 				     WPA_EVENT_NETWORK_NOT_FOUND);
2267 		}
2268 	}
2269 	return 0;
2270 }
2271 
2272 
wpa_supplicant_event_scan_results(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2273 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
2274 					     union wpa_event_data *data)
2275 {
2276 	struct wpa_supplicant *ifs;
2277 	int res;
2278 
2279 	res = _wpa_supplicant_event_scan_results(wpa_s, data, 1, 0);
2280 	if (res == 2) {
2281 		/*
2282 		 * Interface may have been removed, so must not dereference
2283 		 * wpa_s after this.
2284 		 */
2285 		return 1;
2286 	}
2287 
2288 	if (res < 0) {
2289 		/*
2290 		 * If no scan results could be fetched, then no need to
2291 		 * notify those interfaces that did not actually request
2292 		 * this scan. Similarly, if scan results started a new operation on this
2293 		 * interface, do not notify other interfaces to avoid concurrent
2294 		 * operations during a connection attempt.
2295 		 */
2296 		return 0;
2297 	}
2298 
2299 	/*
2300 	 * Check other interfaces to see if they share the same radio. If
2301 	 * so, they get updated with this same scan info.
2302 	 */
2303 	dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
2304 			 radio_list) {
2305 		if (ifs != wpa_s) {
2306 			wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
2307 				   "sibling", ifs->ifname);
2308 			res = _wpa_supplicant_event_scan_results(ifs, data, 0,
2309 								 res > 0);
2310 			if (res < 0)
2311 				return 0;
2312 		}
2313 	}
2314 
2315 	return 0;
2316 }
2317 
2318 #endif /* CONFIG_NO_SCAN_PROCESSING */
2319 
2320 
wpa_supplicant_fast_associate(struct wpa_supplicant * wpa_s)2321 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
2322 {
2323 #ifdef CONFIG_NO_SCAN_PROCESSING
2324 	return -1;
2325 #else /* CONFIG_NO_SCAN_PROCESSING */
2326 	struct os_reltime now;
2327 
2328 	wpa_s->ignore_post_flush_scan_res = 0;
2329 
2330 	if (wpa_s->last_scan_res_used == 0)
2331 		return -1;
2332 
2333 	os_get_reltime(&now);
2334 	if (os_reltime_expired(&now, &wpa_s->last_scan,
2335 			       SCAN_RES_VALID_FOR_CONNECT)) {
2336 		wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
2337 		return -1;
2338 	}
2339 
2340 	return wpas_select_network_from_last_scan(wpa_s, 0, 1);
2341 #endif /* CONFIG_NO_SCAN_PROCESSING */
2342 }
2343 
2344 #ifdef CONFIG_WNM
2345 
wnm_bss_keep_alive(void * eloop_ctx,void * sock_ctx)2346 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
2347 {
2348 	struct wpa_supplicant *wpa_s = eloop_ctx;
2349 
2350 	if (wpa_s->wpa_state < WPA_ASSOCIATED)
2351 		return;
2352 
2353 	if (!wpa_s->no_keep_alive) {
2354 		wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
2355 			   MAC2STR(wpa_s->bssid));
2356 		/* TODO: could skip this if normal data traffic has been sent */
2357 		/* TODO: Consider using some more appropriate data frame for
2358 		 * this */
2359 		if (wpa_s->l2)
2360 			l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
2361 				       (u8 *) "", 0);
2362 	}
2363 
2364 #ifdef CONFIG_SME
2365 	if (wpa_s->sme.bss_max_idle_period) {
2366 		unsigned int msec;
2367 		msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
2368 		if (msec > 100)
2369 			msec -= 100;
2370 		eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
2371 				       wnm_bss_keep_alive, wpa_s, NULL);
2372 	}
2373 #endif /* CONFIG_SME */
2374 }
2375 
2376 
wnm_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)2377 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
2378 				   const u8 *ies, size_t ies_len)
2379 {
2380 	struct ieee802_11_elems elems;
2381 
2382 	if (ies == NULL)
2383 		return;
2384 
2385 	if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
2386 		return;
2387 
2388 #ifdef CONFIG_SME
2389 	if (elems.bss_max_idle_period) {
2390 		unsigned int msec;
2391 		wpa_s->sme.bss_max_idle_period =
2392 			WPA_GET_LE16(elems.bss_max_idle_period);
2393 		wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
2394 			   "TU)%s", wpa_s->sme.bss_max_idle_period,
2395 			   (elems.bss_max_idle_period[2] & 0x01) ?
2396 			   " (protected keep-live required)" : "");
2397 		if (wpa_s->sme.bss_max_idle_period == 0)
2398 			wpa_s->sme.bss_max_idle_period = 1;
2399 		if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
2400 			eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
2401 			 /* msec times 1000 */
2402 			msec = wpa_s->sme.bss_max_idle_period * 1024;
2403 			if (msec > 100)
2404 				msec -= 100;
2405 			eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
2406 					       wnm_bss_keep_alive, wpa_s,
2407 					       NULL);
2408 		}
2409 	}
2410 #endif /* CONFIG_SME */
2411 }
2412 
2413 #endif /* CONFIG_WNM */
2414 
2415 
wnm_bss_keep_alive_deinit(struct wpa_supplicant * wpa_s)2416 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
2417 {
2418 #ifdef CONFIG_WNM
2419 	eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
2420 #endif /* CONFIG_WNM */
2421 }
2422 
2423 
2424 #ifdef CONFIG_INTERWORKING
2425 
wpas_qos_map_set(struct wpa_supplicant * wpa_s,const u8 * qos_map,size_t len)2426 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
2427 			    size_t len)
2428 {
2429 	int res;
2430 
2431 	wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
2432 	res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
2433 	if (res) {
2434 		wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
2435 	}
2436 
2437 	return res;
2438 }
2439 
2440 
interworking_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)2441 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
2442 					    const u8 *ies, size_t ies_len)
2443 {
2444 	struct ieee802_11_elems elems;
2445 
2446 	if (ies == NULL)
2447 		return;
2448 
2449 	if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
2450 		return;
2451 
2452 	if (elems.qos_map_set) {
2453 		wpas_qos_map_set(wpa_s, elems.qos_map_set,
2454 				 elems.qos_map_set_len);
2455 	}
2456 }
2457 
2458 #endif /* CONFIG_INTERWORKING */
2459 
2460 
multi_ap_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)2461 static void multi_ap_process_assoc_resp(struct wpa_supplicant *wpa_s,
2462 					const u8 *ies, size_t ies_len)
2463 {
2464 	struct ieee802_11_elems elems;
2465 	const u8 *map_sub_elem, *pos;
2466 	size_t len;
2467 
2468 	wpa_s->multi_ap_ie = 0;
2469 
2470 	if (!ies ||
2471 	    ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed ||
2472 	    !elems.multi_ap || elems.multi_ap_len < 7)
2473 		return;
2474 
2475 	pos = elems.multi_ap + 4;
2476 	len = elems.multi_ap_len - 4;
2477 
2478 	map_sub_elem = get_ie(pos, len, MULTI_AP_SUB_ELEM_TYPE);
2479 	if (!map_sub_elem || map_sub_elem[1] < 1)
2480 		return;
2481 
2482 	wpa_s->multi_ap_backhaul = !!(map_sub_elem[2] & MULTI_AP_BACKHAUL_BSS);
2483 	wpa_s->multi_ap_fronthaul = !!(map_sub_elem[2] &
2484 				       MULTI_AP_FRONTHAUL_BSS);
2485 	wpa_s->multi_ap_ie = 1;
2486 }
2487 
2488 
multi_ap_set_4addr_mode(struct wpa_supplicant * wpa_s)2489 static void multi_ap_set_4addr_mode(struct wpa_supplicant *wpa_s)
2490 {
2491 	if (!wpa_s->current_ssid ||
2492 	    !wpa_s->current_ssid->multi_ap_backhaul_sta)
2493 		return;
2494 
2495 	if (!wpa_s->multi_ap_ie) {
2496 		wpa_printf(MSG_INFO,
2497 			   "AP does not include valid Multi-AP element");
2498 		goto fail;
2499 	}
2500 
2501 	if (!wpa_s->multi_ap_backhaul) {
2502 		if (wpa_s->multi_ap_fronthaul &&
2503 		    wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
2504 			wpa_printf(MSG_INFO,
2505 				   "WPS active, accepting fronthaul-only BSS");
2506 			/* Don't set 4addr mode in this case, so just return */
2507 			return;
2508 		}
2509 		wpa_printf(MSG_INFO, "AP doesn't support backhaul BSS");
2510 		goto fail;
2511 	}
2512 
2513 	if (wpa_drv_set_4addr_mode(wpa_s, 1) < 0) {
2514 		wpa_printf(MSG_ERROR, "Failed to set 4addr mode");
2515 		goto fail;
2516 	}
2517 	wpa_s->enabled_4addr_mode = 1;
2518 	return;
2519 
2520 fail:
2521 	wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2522 }
2523 
2524 
2525 #ifdef CONFIG_FST
wpas_fst_update_mbie(struct wpa_supplicant * wpa_s,const u8 * ie,size_t ie_len)2526 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
2527 				const u8 *ie, size_t ie_len)
2528 {
2529 	struct mb_ies_info mb_ies;
2530 
2531 	if (!ie || !ie_len || !wpa_s->fst)
2532 	    return -ENOENT;
2533 
2534 	os_memset(&mb_ies, 0, sizeof(mb_ies));
2535 
2536 	while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
2537 		size_t len;
2538 
2539 		len = 2 + ie[1];
2540 		if (len > ie_len) {
2541 			wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
2542 				    ie, ie_len);
2543 			break;
2544 		}
2545 
2546 		if (ie[0] == WLAN_EID_MULTI_BAND) {
2547 			wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
2548 				   (unsigned int) len);
2549 			mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
2550 			mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
2551 			mb_ies.nof_ies++;
2552 		}
2553 
2554 		ie_len -= len;
2555 		ie += len;
2556 	}
2557 
2558 	if (mb_ies.nof_ies > 0) {
2559 		wpabuf_free(wpa_s->received_mb_ies);
2560 		wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
2561 		return 0;
2562 	}
2563 
2564 	return -ENOENT;
2565 }
2566 #endif /* CONFIG_FST */
2567 
2568 
wpa_supplicant_event_associnfo(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2569 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
2570 					  union wpa_event_data *data)
2571 {
2572 	int l, len, found = 0, found_x = 0, wpa_found, rsn_found;
2573 	const u8 *p;
2574 #if defined(CONFIG_IEEE80211R) || defined(CONFIG_OWE)
2575 	u8 bssid[ETH_ALEN];
2576 #endif /* CONFIG_IEEE80211R || CONFIG_OWE */
2577 
2578 	wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
2579 	if (data->assoc_info.req_ies)
2580 		wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
2581 			    data->assoc_info.req_ies_len);
2582 	if (data->assoc_info.resp_ies) {
2583 		wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
2584 			    data->assoc_info.resp_ies_len);
2585 #ifdef CONFIG_TDLS
2586 		wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
2587 					data->assoc_info.resp_ies_len);
2588 #endif /* CONFIG_TDLS */
2589 #ifdef CONFIG_WNM
2590 		wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2591 				       data->assoc_info.resp_ies_len);
2592 #endif /* CONFIG_WNM */
2593 #ifdef CONFIG_INTERWORKING
2594 		interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2595 						data->assoc_info.resp_ies_len);
2596 #endif /* CONFIG_INTERWORKING */
2597 		if (wpa_s->hw_capab == CAPAB_VHT &&
2598 		    get_ie(data->assoc_info.resp_ies,
2599 			   data->assoc_info.resp_ies_len, WLAN_EID_VHT_CAP))
2600 			wpa_s->ieee80211ac = 1;
2601 
2602 		multi_ap_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2603 					    data->assoc_info.resp_ies_len);
2604 	}
2605 	if (data->assoc_info.beacon_ies)
2606 		wpa_hexdump(MSG_DEBUG, "beacon_ies",
2607 			    data->assoc_info.beacon_ies,
2608 			    data->assoc_info.beacon_ies_len);
2609 	if (data->assoc_info.freq)
2610 		wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
2611 			data->assoc_info.freq);
2612 
2613 	wpa_s->connection_set = 0;
2614 	if (data->assoc_info.req_ies && data->assoc_info.resp_ies) {
2615 		struct ieee802_11_elems req_elems, resp_elems;
2616 
2617 		if (ieee802_11_parse_elems(data->assoc_info.req_ies,
2618 					   data->assoc_info.req_ies_len,
2619 					   &req_elems, 0) != ParseFailed &&
2620 		    ieee802_11_parse_elems(data->assoc_info.resp_ies,
2621 					   data->assoc_info.resp_ies_len,
2622 					   &resp_elems, 0) != ParseFailed) {
2623 			wpa_s->connection_set = 1;
2624 			wpa_s->connection_ht = req_elems.ht_capabilities &&
2625 				resp_elems.ht_capabilities;
2626 			/* Do not include subset of VHT on 2.4 GHz vendor
2627 			 * extension in consideration for reporting VHT
2628 			 * association. */
2629 			wpa_s->connection_vht = req_elems.vht_capabilities &&
2630 				resp_elems.vht_capabilities &&
2631 				(!data->assoc_info.freq ||
2632 				 wpas_freq_to_band(data->assoc_info.freq) !=
2633 				 BAND_2_4_GHZ);
2634 			wpa_s->connection_he = req_elems.he_capabilities &&
2635 				resp_elems.he_capabilities;
2636 
2637 			int max_nss_rx_req = get_max_nss_capability(&req_elems, 1);
2638 			int max_nss_rx_resp = get_max_nss_capability(&resp_elems, 1);
2639 			wpa_s->connection_max_nss_rx = (max_nss_rx_resp > max_nss_rx_req) ?
2640 				max_nss_rx_req : max_nss_rx_resp;
2641 			int max_nss_tx_req = get_max_nss_capability(&req_elems, 0);
2642 			int max_nss_tx_resp = get_max_nss_capability(&resp_elems, 0);
2643 			wpa_s->connection_max_nss_tx = (max_nss_tx_resp > max_nss_tx_req) ?
2644 				max_nss_tx_req : max_nss_tx_resp;
2645 
2646 			struct supported_chan_width sta_supported_chan_width =
2647 				get_supported_channel_width(&req_elems);
2648 			enum chan_width ap_operation_chan_width =
2649 				get_operation_channel_width(&resp_elems);
2650 			if (wpa_s->connection_vht || wpa_s->connection_he) {
2651 				wpa_s->connection_channel_bandwidth =
2652 					get_sta_operation_chan_width(ap_operation_chan_width,
2653 					sta_supported_chan_width);
2654 			} else if (wpa_s->connection_ht) {
2655 				wpa_s->connection_channel_bandwidth = (ap_operation_chan_width
2656 					== CHAN_WIDTH_40) ? CHAN_WIDTH_40 : CHAN_WIDTH_20;
2657 			} else {
2658 				wpa_s->connection_channel_bandwidth = CHAN_WIDTH_20;
2659 			}
2660 		}
2661 	}
2662 
2663 	p = data->assoc_info.req_ies;
2664 	l = data->assoc_info.req_ies_len;
2665 
2666 	/* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
2667 	while (p && l >= 2) {
2668 		len = p[1] + 2;
2669 		if (len > l) {
2670 			wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2671 				    p, l);
2672 			break;
2673 		}
2674 		if (!found &&
2675 		    ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2676 		      (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
2677 		     (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
2678 		      (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
2679 		     (p[0] == WLAN_EID_RSN && p[1] >= 2))) {
2680 			if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
2681 				break;
2682 			found = 1;
2683 			wpa_find_assoc_pmkid(wpa_s);
2684 		}
2685 		if (!found_x && p[0] == WLAN_EID_RSNX) {
2686 			if (wpa_sm_set_assoc_rsnxe(wpa_s->wpa, p, len))
2687 				break;
2688 			found_x = 1;
2689 		}
2690 		l -= len;
2691 		p += len;
2692 	}
2693 	if (!found && data->assoc_info.req_ies)
2694 		wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2695 	if (!found_x && data->assoc_info.req_ies)
2696 		wpa_sm_set_assoc_rsnxe(wpa_s->wpa, NULL, 0);
2697 
2698 #ifdef CONFIG_FILS
2699 #ifdef CONFIG_SME
2700 	if ((wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS ||
2701 	     wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS_SK_PFS) &&
2702 	    (!data->assoc_info.resp_frame ||
2703 	     fils_process_assoc_resp(wpa_s->wpa,
2704 				     data->assoc_info.resp_frame,
2705 				     data->assoc_info.resp_frame_len) < 0)) {
2706 		wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
2707 		return -1;
2708 	}
2709 #endif /* CONFIG_SME */
2710 
2711 	/* Additional processing for FILS when SME is in driver */
2712 	if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS &&
2713 	    !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2714 		wpa_sm_set_reset_fils_completed(wpa_s->wpa, 1);
2715 #endif /* CONFIG_FILS */
2716 
2717 #ifdef CONFIG_OWE
2718 	if (wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
2719 	    (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2720 	     owe_process_assoc_resp(wpa_s->wpa, bssid,
2721 				    data->assoc_info.resp_ies,
2722 				    data->assoc_info.resp_ies_len) < 0)) {
2723 		wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
2724 		return -1;
2725 	}
2726 #endif /* CONFIG_OWE */
2727 
2728 #ifdef CONFIG_DPP2
2729 	wpa_sm_set_dpp_z(wpa_s->wpa, NULL);
2730 	if (DPP_VERSION > 1 && wpa_s->key_mgmt == WPA_KEY_MGMT_DPP &&
2731 	    wpa_s->dpp_pfs) {
2732 		struct ieee802_11_elems elems;
2733 
2734 		if (ieee802_11_parse_elems(data->assoc_info.resp_ies,
2735 					   data->assoc_info.resp_ies_len,
2736 					   &elems, 0) == ParseFailed ||
2737 		    !elems.owe_dh)
2738 			goto no_pfs;
2739 		if (dpp_pfs_process(wpa_s->dpp_pfs, elems.owe_dh,
2740 				    elems.owe_dh_len) < 0) {
2741 			wpa_supplicant_deauthenticate(wpa_s,
2742 						      WLAN_REASON_UNSPECIFIED);
2743 			return -1;
2744 		}
2745 
2746 		wpa_sm_set_dpp_z(wpa_s->wpa, wpa_s->dpp_pfs->secret);
2747 	}
2748 no_pfs:
2749 #endif /* CONFIG_DPP2 */
2750 
2751 #ifdef CONFIG_IEEE80211R
2752 #ifdef CONFIG_SME
2753 	if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
2754 		if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2755 		    wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2756 						 data->assoc_info.resp_ies,
2757 						 data->assoc_info.resp_ies_len,
2758 						 bssid) < 0) {
2759 			wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2760 				"Reassociation Response failed");
2761 			wpa_supplicant_deauthenticate(
2762 				wpa_s, WLAN_REASON_INVALID_IE);
2763 			return -1;
2764 		}
2765 	}
2766 
2767 	p = data->assoc_info.resp_ies;
2768 	l = data->assoc_info.resp_ies_len;
2769 
2770 #ifdef CONFIG_WPS_STRICT
2771 	if (p && wpa_s->current_ssid &&
2772 	    wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
2773 		struct wpabuf *wps;
2774 		wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
2775 		if (wps == NULL) {
2776 			wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
2777 				"include WPS IE in (Re)Association Response");
2778 			return -1;
2779 		}
2780 
2781 		if (wps_validate_assoc_resp(wps) < 0) {
2782 			wpabuf_free(wps);
2783 			wpa_supplicant_deauthenticate(
2784 				wpa_s, WLAN_REASON_INVALID_IE);
2785 			return -1;
2786 		}
2787 		wpabuf_free(wps);
2788 	}
2789 #endif /* CONFIG_WPS_STRICT */
2790 
2791 	/* Go through the IEs and make a copy of the MDIE, if present. */
2792 	while (p && l >= 2) {
2793 		len = p[1] + 2;
2794 		if (len > l) {
2795 			wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2796 				    p, l);
2797 			break;
2798 		}
2799 		if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
2800 		    p[1] >= MOBILITY_DOMAIN_ID_LEN) {
2801 			wpa_s->sme.ft_used = 1;
2802 			os_memcpy(wpa_s->sme.mobility_domain, p + 2,
2803 				  MOBILITY_DOMAIN_ID_LEN);
2804 			break;
2805 		}
2806 		l -= len;
2807 		p += len;
2808 	}
2809 #endif /* CONFIG_SME */
2810 
2811 	/* Process FT when SME is in the driver */
2812 	if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
2813 	    wpa_ft_is_completed(wpa_s->wpa)) {
2814 		if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2815 		    wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2816 						 data->assoc_info.resp_ies,
2817 						 data->assoc_info.resp_ies_len,
2818 						 bssid) < 0) {
2819 			wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2820 				"Reassociation Response failed");
2821 			wpa_supplicant_deauthenticate(
2822 				wpa_s, WLAN_REASON_INVALID_IE);
2823 			return -1;
2824 		}
2825 		wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
2826 	}
2827 
2828 	wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
2829 			     data->assoc_info.resp_ies_len);
2830 #endif /* CONFIG_IEEE80211R */
2831 
2832 	/* WPA/RSN IE from Beacon/ProbeResp */
2833 	p = data->assoc_info.beacon_ies;
2834 	l = data->assoc_info.beacon_ies_len;
2835 
2836 	/* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
2837 	 */
2838 	wpa_found = rsn_found = 0;
2839 	while (p && l >= 2) {
2840 		len = p[1] + 2;
2841 		if (len > l) {
2842 			wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
2843 				    p, l);
2844 			break;
2845 		}
2846 		if (!wpa_found &&
2847 		    p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2848 		    os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
2849 			wpa_found = 1;
2850 			wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
2851 		}
2852 
2853 		if (!rsn_found &&
2854 		    p[0] == WLAN_EID_RSN && p[1] >= 2) {
2855 			rsn_found = 1;
2856 			wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
2857 		}
2858 
2859 		if (p[0] == WLAN_EID_RSNX && p[1] >= 1)
2860 			wpa_sm_set_ap_rsnxe(wpa_s->wpa, p, len);
2861 
2862 		l -= len;
2863 		p += len;
2864 	}
2865 
2866 	if (!wpa_found && data->assoc_info.beacon_ies)
2867 		wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
2868 	if (!rsn_found && data->assoc_info.beacon_ies) {
2869 		wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
2870 		wpa_sm_set_ap_rsnxe(wpa_s->wpa, NULL, 0);
2871 	}
2872 	if (wpa_found || rsn_found)
2873 		wpa_s->ap_ies_from_associnfo = 1;
2874 
2875 	if (wpa_s->assoc_freq && data->assoc_info.freq &&
2876 	    wpa_s->assoc_freq != data->assoc_info.freq) {
2877 		wpa_printf(MSG_DEBUG, "Operating frequency changed from "
2878 			   "%u to %u MHz",
2879 			   wpa_s->assoc_freq, data->assoc_info.freq);
2880 		wpa_supplicant_update_scan_results(wpa_s);
2881 	}
2882 
2883 	wpa_s->assoc_freq = data->assoc_info.freq;
2884 
2885 	return 0;
2886 }
2887 
2888 
wpa_supplicant_assoc_update_ie(struct wpa_supplicant * wpa_s)2889 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
2890 {
2891 	const u8 *bss_wpa = NULL, *bss_rsn = NULL, *bss_rsnx = NULL;
2892 
2893 	if (!wpa_s->current_bss || !wpa_s->current_ssid)
2894 		return -1;
2895 
2896 	if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
2897 		return 0;
2898 
2899 	bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
2900 					WPA_IE_VENDOR_TYPE);
2901 	bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
2902 	bss_rsnx = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSNX);
2903 
2904 	if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
2905 				 bss_wpa ? 2 + bss_wpa[1] : 0) ||
2906 	    wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
2907 				 bss_rsn ? 2 + bss_rsn[1] : 0) ||
2908 	    wpa_sm_set_ap_rsnxe(wpa_s->wpa, bss_rsnx,
2909 				 bss_rsnx ? 2 + bss_rsnx[1] : 0))
2910 		return -1;
2911 
2912 	return 0;
2913 }
2914 
2915 
wpas_fst_update_mb_assoc(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2916 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
2917 				     union wpa_event_data *data)
2918 {
2919 #ifdef CONFIG_FST
2920 	struct assoc_info *ai = data ? &data->assoc_info : NULL;
2921 	struct wpa_bss *bss = wpa_s->current_bss;
2922 	const u8 *ieprb, *iebcn;
2923 
2924 	wpabuf_free(wpa_s->received_mb_ies);
2925 	wpa_s->received_mb_ies = NULL;
2926 
2927 	if (ai &&
2928 	    !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
2929 		wpa_printf(MSG_DEBUG,
2930 			   "FST: MB IEs updated from Association Response frame");
2931 		return;
2932 	}
2933 
2934 	if (ai &&
2935 	    !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
2936 		wpa_printf(MSG_DEBUG,
2937 			   "FST: MB IEs updated from association event Beacon IEs");
2938 		return;
2939 	}
2940 
2941 	if (!bss)
2942 		return;
2943 
2944 	ieprb = (const u8 *) (bss + 1);
2945 	iebcn = ieprb + bss->ie_len;
2946 
2947 	if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
2948 		wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
2949 	else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
2950 		wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
2951 #endif /* CONFIG_FST */
2952 }
2953 
2954 
wpa_supplicant_event_assoc(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2955 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
2956 				       union wpa_event_data *data)
2957 {
2958 	u8 bssid[ETH_ALEN];
2959 	int ft_completed, already_authorized;
2960 	int new_bss = 0;
2961 #if defined(CONFIG_FILS) || defined(CONFIG_MBO)
2962 	struct wpa_bss *bss;
2963 #endif /* CONFIG_FILS || CONFIG_MBO */
2964 
2965 #ifdef CONFIG_AP
2966 	if (wpa_s->ap_iface) {
2967 		if (!data)
2968 			return;
2969 		hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
2970 				    data->assoc_info.addr,
2971 				    data->assoc_info.req_ies,
2972 				    data->assoc_info.req_ies_len,
2973 				    data->assoc_info.reassoc);
2974 		return;
2975 	}
2976 #endif /* CONFIG_AP */
2977 
2978 	eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2979 	wpa_s->own_reconnect_req = 0;
2980 
2981 	ft_completed = wpa_ft_is_completed(wpa_s->wpa);
2982 	if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
2983 		return;
2984 	/*
2985 	 * FILS authentication can share the same mechanism to mark the
2986 	 * connection fully authenticated, so set ft_completed also based on
2987 	 * FILS result.
2988 	 */
2989 	if (!ft_completed)
2990 		ft_completed = wpa_fils_is_completed(wpa_s->wpa);
2991 
2992 	if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
2993 		wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
2994 		wpa_supplicant_deauthenticate(
2995 			wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2996 		return;
2997 	}
2998 
2999 	wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
3000 	if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
3001 		if (os_reltime_initialized(&wpa_s->session_start)) {
3002 			os_reltime_age(&wpa_s->session_start,
3003 				       &wpa_s->session_length);
3004 			wpa_s->session_start.sec = 0;
3005 			wpa_s->session_start.usec = 0;
3006 			wpas_notify_session_length(wpa_s);
3007 		} else {
3008 			wpas_notify_auth_changed(wpa_s);
3009 			os_get_reltime(&wpa_s->session_start);
3010 		}
3011 		wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
3012 			MACSTR, MAC2STR(bssid));
3013 		new_bss = 1;
3014 		random_add_randomness(bssid, ETH_ALEN);
3015 		os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
3016 		os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
3017 		wpas_notify_bssid_changed(wpa_s);
3018 
3019 		if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
3020 			wpa_clear_keys(wpa_s, bssid);
3021 		}
3022 		if (wpa_supplicant_select_config(wpa_s) < 0) {
3023 			wpa_supplicant_deauthenticate(
3024 				wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3025 			return;
3026 		}
3027 	}
3028 
3029 	multi_ap_set_4addr_mode(wpa_s);
3030 
3031 	if (wpa_s->conf->ap_scan == 1 &&
3032 	    wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
3033 		if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
3034 			wpa_msg(wpa_s, MSG_WARNING,
3035 				"WPA/RSN IEs not updated");
3036 	}
3037 
3038 	wpas_fst_update_mb_assoc(wpa_s, data);
3039 
3040 #ifdef CONFIG_SME
3041 	os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
3042 	wpa_s->sme.prev_bssid_set = 1;
3043 	wpa_s->sme.last_unprot_disconnect.sec = 0;
3044 #endif /* CONFIG_SME */
3045 
3046 	wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
3047 	if (wpa_s->current_ssid) {
3048 		/* When using scanning (ap_scan=1), SIM PC/SC interface can be
3049 		 * initialized before association, but for other modes,
3050 		 * initialize PC/SC here, if the current configuration needs
3051 		 * smartcard or SIM/USIM. */
3052 		wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
3053 	}
3054 	wpa_sm_notify_assoc(wpa_s->wpa, bssid);
3055 	if (wpa_s->l2)
3056 		l2_packet_notify_auth_start(wpa_s->l2);
3057 
3058 	already_authorized = data && data->assoc_info.authorized;
3059 
3060 	/*
3061 	 * Set portEnabled first to false in order to get EAP state machine out
3062 	 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
3063 	 * state machine may transit to AUTHENTICATING state based on obsolete
3064 	 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
3065 	 * AUTHENTICATED without ever giving chance to EAP state machine to
3066 	 * reset the state.
3067 	 */
3068 	if (!ft_completed && !already_authorized) {
3069 		eapol_sm_notify_portEnabled(wpa_s->eapol, false);
3070 		eapol_sm_notify_portValid(wpa_s->eapol, false);
3071 	}
3072 	if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3073 	    wpa_s->key_mgmt == WPA_KEY_MGMT_DPP ||
3074 	    wpa_s->key_mgmt == WPA_KEY_MGMT_OWE || ft_completed ||
3075 	    already_authorized || wpa_s->drv_authorized_port)
3076 		eapol_sm_notify_eap_success(wpa_s->eapol, false);
3077 	/* 802.1X::portControl = Auto */
3078 	eapol_sm_notify_portEnabled(wpa_s->eapol, true);
3079 	wpa_s->eapol_received = 0;
3080 	if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
3081 	    wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
3082 	    (wpa_s->current_ssid &&
3083 	     wpa_s->current_ssid->mode == WPAS_MODE_IBSS)) {
3084 		if (wpa_s->current_ssid &&
3085 		    wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
3086 		    (wpa_s->drv_flags &
3087 		     WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
3088 			/*
3089 			 * Set the key after having received joined-IBSS event
3090 			 * from the driver.
3091 			 */
3092 			wpa_supplicant_set_wpa_none_key(wpa_s,
3093 							wpa_s->current_ssid);
3094 		}
3095 		wpa_supplicant_cancel_auth_timeout(wpa_s);
3096 		wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3097 	} else if (!ft_completed) {
3098 		/* Timeout for receiving the first EAPOL packet */
3099 		wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
3100 	}
3101 	wpa_supplicant_cancel_scan(wpa_s);
3102 
3103 	if (ft_completed) {
3104 		/*
3105 		 * FT protocol completed - make sure EAPOL state machine ends
3106 		 * up in authenticated.
3107 		 */
3108 		wpa_supplicant_cancel_auth_timeout(wpa_s);
3109 		wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3110 		eapol_sm_notify_portValid(wpa_s->eapol, true);
3111 		eapol_sm_notify_eap_success(wpa_s->eapol, true);
3112 	} else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK) &&
3113 		   wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
3114 		/*
3115 		 * We are done; the driver will take care of RSN 4-way
3116 		 * handshake.
3117 		 */
3118 		wpa_supplicant_cancel_auth_timeout(wpa_s);
3119 		wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3120 		eapol_sm_notify_portValid(wpa_s->eapol, true);
3121 		eapol_sm_notify_eap_success(wpa_s->eapol, true);
3122 	} else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X) &&
3123 		   wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
3124 		/*
3125 		 * The driver will take care of RSN 4-way handshake, so we need
3126 		 * to allow EAPOL supplicant to complete its work without
3127 		 * waiting for WPA supplicant.
3128 		 */
3129 		eapol_sm_notify_portValid(wpa_s->eapol, true);
3130 	}
3131 
3132 	wpa_s->last_eapol_matches_bssid = 0;
3133 
3134 #ifdef CONFIG_TESTING_OPTIONS
3135 	if (wpa_s->rsne_override_eapol) {
3136 		wpa_printf(MSG_DEBUG,
3137 			   "TESTING: RSNE EAPOL-Key msg 2/4 override");
3138 		wpa_sm_set_assoc_wpa_ie(wpa_s->wpa,
3139 					wpabuf_head(wpa_s->rsne_override_eapol),
3140 					wpabuf_len(wpa_s->rsne_override_eapol));
3141 	}
3142 	if (wpa_s->rsnxe_override_eapol) {
3143 		wpa_printf(MSG_DEBUG,
3144 			   "TESTING: RSNXE EAPOL-Key msg 2/4 override");
3145 		wpa_sm_set_assoc_rsnxe(wpa_s->wpa,
3146 				       wpabuf_head(wpa_s->rsnxe_override_eapol),
3147 				       wpabuf_len(wpa_s->rsnxe_override_eapol));
3148 	}
3149 #endif /* CONFIG_TESTING_OPTIONS */
3150 
3151 	if (wpa_s->pending_eapol_rx) {
3152 		struct os_reltime now, age;
3153 		os_get_reltime(&now);
3154 		os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
3155 		if (age.sec == 0 && age.usec < 200000 &&
3156 		    os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
3157 		    0) {
3158 			wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
3159 				"frame that was received just before "
3160 				"association notification");
3161 			wpa_supplicant_rx_eapol(
3162 				wpa_s, wpa_s->pending_eapol_rx_src,
3163 				wpabuf_head(wpa_s->pending_eapol_rx),
3164 				wpabuf_len(wpa_s->pending_eapol_rx));
3165 		}
3166 		wpabuf_free(wpa_s->pending_eapol_rx);
3167 		wpa_s->pending_eapol_rx = NULL;
3168 	}
3169 
3170 #ifdef CONFIG_WEP
3171 	if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
3172 	     wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
3173 	    wpa_s->current_ssid &&
3174 	    (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
3175 		/* Set static WEP keys again */
3176 		wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
3177 	}
3178 #endif /* CONFIG_WEP */
3179 
3180 #ifdef CONFIG_IBSS_RSN
3181 	if (wpa_s->current_ssid &&
3182 	    wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3183 	    wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
3184 	    wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
3185 	    wpa_s->ibss_rsn == NULL) {
3186 		wpa_s->ibss_rsn = ibss_rsn_init(wpa_s, wpa_s->current_ssid);
3187 		if (!wpa_s->ibss_rsn) {
3188 			wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
3189 			wpa_supplicant_deauthenticate(
3190 				wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3191 			return;
3192 		}
3193 
3194 		ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
3195 	}
3196 #endif /* CONFIG_IBSS_RSN */
3197 
3198 	wpas_wps_notify_assoc(wpa_s, bssid);
3199 
3200 	if (data) {
3201 		wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
3202 				    data->assoc_info.resp_ies_len,
3203 				    &data->assoc_info.wmm_params);
3204 
3205 		if (wpa_s->reassoc_same_bss)
3206 			wmm_ac_restore_tspecs(wpa_s);
3207 	}
3208 
3209 #if defined(CONFIG_FILS) || defined(CONFIG_MBO)
3210 	bss = wpa_bss_get_bssid(wpa_s, bssid);
3211 #endif /* CONFIG_FILS || CONFIG_MBO */
3212 #ifdef CONFIG_FILS
3213 	if (wpa_key_mgmt_fils(wpa_s->key_mgmt)) {
3214 		const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
3215 
3216 		if (fils_cache_id)
3217 			wpa_sm_set_fils_cache_id(wpa_s->wpa, fils_cache_id);
3218 	}
3219 #endif /* CONFIG_FILS */
3220 
3221 #ifdef CONFIG_MBO
3222 	wpas_mbo_check_pmf(wpa_s, bss, wpa_s->current_ssid);
3223 #endif /* CONFIG_MBO */
3224 
3225 #ifdef CONFIG_DPP2
3226 	wpa_s->dpp_pfs_fallback = 0;
3227 #endif /* CONFIG_DPP2 */
3228 }
3229 
3230 
disconnect_reason_recoverable(u16 reason_code)3231 static int disconnect_reason_recoverable(u16 reason_code)
3232 {
3233 	return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
3234 		reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
3235 		reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
3236 }
3237 
3238 
wpa_supplicant_event_disassoc(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)3239 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
3240 					  u16 reason_code,
3241 					  int locally_generated)
3242 {
3243 	const u8 *bssid;
3244 
3245 	if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
3246 		/*
3247 		 * At least Host AP driver and a Prism3 card seemed to be
3248 		 * generating streams of disconnected events when configuring
3249 		 * IBSS for WPA-None. Ignore them for now.
3250 		 */
3251 		return;
3252 	}
3253 
3254 	bssid = wpa_s->bssid;
3255 	if (is_zero_ether_addr(bssid))
3256 		bssid = wpa_s->pending_bssid;
3257 
3258 	if (!is_zero_ether_addr(bssid) ||
3259 	    wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3260 		wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
3261 			" reason=%d%s",
3262 			MAC2STR(bssid), reason_code,
3263 			locally_generated ? " locally_generated=1" : "");
3264 	}
3265 }
3266 
3267 
could_be_psk_mismatch(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)3268 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
3269 				 int locally_generated)
3270 {
3271 	if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
3272 	    !wpa_s->new_connection ||
3273 	    !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3274 	    wpa_key_mgmt_sae(wpa_s->key_mgmt))
3275 		return 0; /* Not in initial 4-way handshake with PSK */
3276 
3277 	/*
3278 	 * It looks like connection was lost while trying to go through PSK
3279 	 * 4-way handshake. Filter out known disconnection cases that are caused
3280 	 * by something else than PSK mismatch to avoid confusing reports.
3281 	 */
3282 
3283 	if (locally_generated) {
3284 		if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
3285 			return 0;
3286 	}
3287 
3288 	return 1;
3289 }
3290 
3291 
wpa_supplicant_event_disassoc_finish(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)3292 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
3293 						 u16 reason_code,
3294 						 int locally_generated)
3295 {
3296 	const u8 *bssid;
3297 	int authenticating;
3298 	u8 prev_pending_bssid[ETH_ALEN];
3299 	struct wpa_bss *fast_reconnect = NULL;
3300 	struct wpa_ssid *fast_reconnect_ssid = NULL;
3301 	struct wpa_ssid *last_ssid;
3302 	struct wpa_bss *curr = NULL;
3303 
3304 	authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
3305 	os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
3306 
3307 	if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
3308 		/*
3309 		 * At least Host AP driver and a Prism3 card seemed to be
3310 		 * generating streams of disconnected events when configuring
3311 		 * IBSS for WPA-None. Ignore them for now.
3312 		 */
3313 		wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
3314 			"IBSS/WPA-None mode");
3315 		return;
3316 	}
3317 
3318 	if (!wpa_s->disconnected && wpa_s->wpa_state >= WPA_AUTHENTICATING &&
3319 	    reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY &&
3320 	    locally_generated)
3321 		/*
3322 		 * Remove the inactive AP (which is probably out of range) from
3323 		 * the BSS list after marking disassociation. In particular
3324 		 * mac80211-based drivers use the
3325 		 * WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in
3326 		 * locally generated disconnection events for cases where the
3327 		 * AP does not reply anymore.
3328 		 */
3329 		curr = wpa_s->current_bss;
3330 
3331 	if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
3332 		wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
3333 			"pre-shared key may be incorrect");
3334 		if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
3335 			return; /* P2P group removed */
3336 		wpas_auth_failed(wpa_s, "WRONG_KEY");
3337 #ifdef CONFIG_DPP2
3338 		wpas_dpp_send_conn_status_result(wpa_s,
3339 						 DPP_STATUS_AUTH_FAILURE);
3340 #endif /* CONFIG_DPP2 */
3341 	}
3342 	if (!wpa_s->disconnected &&
3343 	    (!wpa_s->auto_reconnect_disabled ||
3344 	     wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
3345 	     wpas_wps_searching(wpa_s) ||
3346 	     wpas_wps_reenable_networks_pending(wpa_s))) {
3347 		wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
3348 			"reconnect (wps=%d/%d wpa_state=%d)",
3349 			wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
3350 			wpas_wps_searching(wpa_s),
3351 			wpa_s->wpa_state);
3352 		if (wpa_s->wpa_state == WPA_COMPLETED &&
3353 		    wpa_s->current_ssid &&
3354 		    wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
3355 		    (wpa_s->own_reconnect_req ||
3356 		     (!locally_generated &&
3357 		      disconnect_reason_recoverable(reason_code)))) {
3358 			/*
3359 			 * It looks like the AP has dropped association with
3360 			 * us, but could allow us to get back in. This is also
3361 			 * triggered for cases where local reconnection request
3362 			 * is used to force reassociation with the same BSS.
3363 			 * Try to reconnect to the same BSS without a full scan
3364 			 * to save time for some common cases.
3365 			 */
3366 			fast_reconnect = wpa_s->current_bss;
3367 			fast_reconnect_ssid = wpa_s->current_ssid;
3368 		} else if (wpa_s->wpa_state >= WPA_ASSOCIATING) {
3369 			wpa_supplicant_req_scan(wpa_s, 0, 100000);
3370 		} else {
3371 			wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
3372 				"immediate scan");
3373 		}
3374 	} else {
3375 		wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
3376 			"try to re-connect");
3377 		wpa_s->reassociate = 0;
3378 		wpa_s->disconnected = 1;
3379 		if (!wpa_s->pno)
3380 			wpa_supplicant_cancel_sched_scan(wpa_s);
3381 	}
3382 	bssid = wpa_s->bssid;
3383 	if (is_zero_ether_addr(bssid))
3384 		bssid = wpa_s->pending_bssid;
3385 	if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
3386 		wpas_connection_failed(wpa_s, bssid);
3387 	wpa_sm_notify_disassoc(wpa_s->wpa);
3388 	if (locally_generated)
3389 		wpa_s->disconnect_reason = -reason_code;
3390 	else
3391 		wpa_s->disconnect_reason = reason_code;
3392 	wpas_notify_disconnect_reason(wpa_s);
3393 	if (wpa_supplicant_dynamic_keys(wpa_s)) {
3394 		wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
3395 		wpa_clear_keys(wpa_s, wpa_s->bssid);
3396 	}
3397 	last_ssid = wpa_s->current_ssid;
3398 	wpa_supplicant_mark_disassoc(wpa_s);
3399 
3400 	if (curr)
3401 		wpa_bss_remove(wpa_s, curr, "Connection to AP lost");
3402 
3403 	if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
3404 		sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
3405 		wpa_s->current_ssid = last_ssid;
3406 	}
3407 
3408 	if (fast_reconnect &&
3409 	    !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
3410 	    !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
3411 	    !disallowed_ssid(wpa_s, fast_reconnect->ssid,
3412 			     fast_reconnect->ssid_len) &&
3413 	    !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
3414 	    !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect)) {
3415 #ifndef CONFIG_NO_SCAN_PROCESSING
3416 		wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
3417 		if (wpa_supplicant_connect(wpa_s, fast_reconnect,
3418 					   fast_reconnect_ssid) < 0) {
3419 			/* Recover through full scan */
3420 			wpa_supplicant_req_scan(wpa_s, 0, 100000);
3421 		}
3422 #endif /* CONFIG_NO_SCAN_PROCESSING */
3423 	} else if (fast_reconnect) {
3424 		/*
3425 		 * Could not reconnect to the same BSS due to network being
3426 		 * disabled. Use a new scan to match the alternative behavior
3427 		 * above, i.e., to continue automatic reconnection attempt in a
3428 		 * way that enforces disabled network rules.
3429 		 */
3430 		wpa_supplicant_req_scan(wpa_s, 0, 100000);
3431 	}
3432 }
3433 
3434 
3435 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
wpa_supplicant_delayed_mic_error_report(void * eloop_ctx,void * sock_ctx)3436 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
3437 {
3438 	struct wpa_supplicant *wpa_s = eloop_ctx;
3439 
3440 	if (!wpa_s->pending_mic_error_report)
3441 		return;
3442 
3443 	wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
3444 	wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
3445 	wpa_s->pending_mic_error_report = 0;
3446 }
3447 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3448 
3449 
3450 static void
wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3451 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
3452 					 union wpa_event_data *data)
3453 {
3454 	int pairwise;
3455 	struct os_reltime t;
3456 
3457 	wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
3458 	pairwise = (data && data->michael_mic_failure.unicast);
3459 	os_get_reltime(&t);
3460 	if ((wpa_s->last_michael_mic_error.sec &&
3461 	     !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
3462 	    wpa_s->pending_mic_error_report) {
3463 		if (wpa_s->pending_mic_error_report) {
3464 			/*
3465 			 * Send the pending MIC error report immediately since
3466 			 * we are going to start countermeasures and AP better
3467 			 * do the same.
3468 			 */
3469 			wpa_sm_key_request(wpa_s->wpa, 1,
3470 					   wpa_s->pending_mic_error_pairwise);
3471 		}
3472 
3473 		/* Send the new MIC error report immediately since we are going
3474 		 * to start countermeasures and AP better do the same.
3475 		 */
3476 		wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3477 
3478 		/* initialize countermeasures */
3479 		wpa_s->countermeasures = 1;
3480 
3481 		wpa_blacklist_add(wpa_s, wpa_s->bssid);
3482 
3483 		wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
3484 
3485 		/*
3486 		 * Need to wait for completion of request frame. We do not get
3487 		 * any callback for the message completion, so just wait a
3488 		 * short while and hope for the best. */
3489 		os_sleep(0, 10000);
3490 
3491 		wpa_drv_set_countermeasures(wpa_s, 1);
3492 		wpa_supplicant_deauthenticate(wpa_s,
3493 					      WLAN_REASON_MICHAEL_MIC_FAILURE);
3494 		eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
3495 				     wpa_s, NULL);
3496 		eloop_register_timeout(60, 0,
3497 				       wpa_supplicant_stop_countermeasures,
3498 				       wpa_s, NULL);
3499 		/* TODO: mark the AP rejected for 60 second. STA is
3500 		 * allowed to associate with another AP.. */
3501 	} else {
3502 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
3503 		if (wpa_s->mic_errors_seen) {
3504 			/*
3505 			 * Reduce the effectiveness of Michael MIC error
3506 			 * reports as a means for attacking against TKIP if
3507 			 * more than one MIC failure is noticed with the same
3508 			 * PTK. We delay the transmission of the reports by a
3509 			 * random time between 0 and 60 seconds in order to
3510 			 * force the attacker wait 60 seconds before getting
3511 			 * the information on whether a frame resulted in a MIC
3512 			 * failure.
3513 			 */
3514 			u8 rval[4];
3515 			int sec;
3516 
3517 			if (os_get_random(rval, sizeof(rval)) < 0)
3518 				sec = os_random() % 60;
3519 			else
3520 				sec = WPA_GET_BE32(rval) % 60;
3521 			wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
3522 				"report %d seconds", sec);
3523 			wpa_s->pending_mic_error_report = 1;
3524 			wpa_s->pending_mic_error_pairwise = pairwise;
3525 			eloop_cancel_timeout(
3526 				wpa_supplicant_delayed_mic_error_report,
3527 				wpa_s, NULL);
3528 			eloop_register_timeout(
3529 				sec, os_random() % 1000000,
3530 				wpa_supplicant_delayed_mic_error_report,
3531 				wpa_s, NULL);
3532 		} else {
3533 			wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3534 		}
3535 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3536 		wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3537 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3538 	}
3539 	wpa_s->last_michael_mic_error = t;
3540 	wpa_s->mic_errors_seen++;
3541 }
3542 
3543 
3544 #ifdef CONFIG_TERMINATE_ONLASTIF
any_interfaces(struct wpa_supplicant * head)3545 static int any_interfaces(struct wpa_supplicant *head)
3546 {
3547 	struct wpa_supplicant *wpa_s;
3548 
3549 	for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
3550 		if (!wpa_s->interface_removed)
3551 			return 1;
3552 	return 0;
3553 }
3554 #endif /* CONFIG_TERMINATE_ONLASTIF */
3555 
3556 
3557 static void
wpa_supplicant_event_interface_status(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3558 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
3559 				      union wpa_event_data *data)
3560 {
3561 	if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
3562 		return;
3563 
3564 	switch (data->interface_status.ievent) {
3565 	case EVENT_INTERFACE_ADDED:
3566 		if (!wpa_s->interface_removed)
3567 			break;
3568 		wpa_s->interface_removed = 0;
3569 		wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
3570 		if (wpa_supplicant_driver_init(wpa_s) < 0) {
3571 			wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
3572 				"driver after interface was added");
3573 		}
3574 
3575 #ifdef CONFIG_P2P
3576 		if (!wpa_s->global->p2p &&
3577 		    !wpa_s->global->p2p_disabled &&
3578 		    !wpa_s->conf->p2p_disabled &&
3579 		    (wpa_s->drv_flags &
3580 		     WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
3581 		    wpas_p2p_add_p2pdev_interface(
3582 			    wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
3583 			wpa_printf(MSG_INFO,
3584 				   "P2P: Failed to enable P2P Device interface");
3585 			/* Try to continue without. P2P will be disabled. */
3586 		}
3587 #endif /* CONFIG_P2P */
3588 
3589 		break;
3590 	case EVENT_INTERFACE_REMOVED:
3591 		wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
3592 		wpa_s->interface_removed = 1;
3593 		wpa_supplicant_mark_disassoc(wpa_s);
3594 		wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3595 		l2_packet_deinit(wpa_s->l2);
3596 		wpa_s->l2 = NULL;
3597 
3598 #ifdef CONFIG_P2P
3599 		if (wpa_s->global->p2p &&
3600 		    wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
3601 		    (wpa_s->drv_flags &
3602 		     WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
3603 			wpa_dbg(wpa_s, MSG_DEBUG,
3604 				"Removing P2P Device interface");
3605 			wpa_supplicant_remove_iface(
3606 				wpa_s->global, wpa_s->global->p2p_init_wpa_s,
3607 				0);
3608 			wpa_s->global->p2p_init_wpa_s = NULL;
3609 		}
3610 #endif /* CONFIG_P2P */
3611 
3612 #ifdef CONFIG_MATCH_IFACE
3613 		if (wpa_s->matched) {
3614 			wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
3615 			break;
3616 		}
3617 #endif /* CONFIG_MATCH_IFACE */
3618 
3619 #ifdef CONFIG_TERMINATE_ONLASTIF
3620 		/* check if last interface */
3621 		if (!any_interfaces(wpa_s->global->ifaces))
3622 			eloop_terminate();
3623 #endif /* CONFIG_TERMINATE_ONLASTIF */
3624 		break;
3625 	}
3626 }
3627 
3628 
3629 #ifdef CONFIG_TDLS
wpa_supplicant_event_tdls(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3630 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
3631 				      union wpa_event_data *data)
3632 {
3633 	if (data == NULL)
3634 		return;
3635 	switch (data->tdls.oper) {
3636 	case TDLS_REQUEST_SETUP:
3637 		wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
3638 		if (wpa_tdls_is_external_setup(wpa_s->wpa))
3639 			wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
3640 		else
3641 			wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
3642 		break;
3643 	case TDLS_REQUEST_TEARDOWN:
3644 		if (wpa_tdls_is_external_setup(wpa_s->wpa))
3645 			wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
3646 					       data->tdls.reason_code);
3647 		else
3648 			wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
3649 					  data->tdls.peer);
3650 		break;
3651 	case TDLS_REQUEST_DISCOVER:
3652 			wpa_tdls_send_discovery_request(wpa_s->wpa,
3653 							data->tdls.peer);
3654 		break;
3655 	}
3656 }
3657 #endif /* CONFIG_TDLS */
3658 
3659 
3660 #ifdef CONFIG_WNM
wpa_supplicant_event_wnm(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3661 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
3662 				     union wpa_event_data *data)
3663 {
3664 	if (data == NULL)
3665 		return;
3666 	switch (data->wnm.oper) {
3667 	case WNM_OPER_SLEEP:
3668 		wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
3669 			   "(action=%d, intval=%d)",
3670 			   data->wnm.sleep_action, data->wnm.sleep_intval);
3671 		ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
3672 					     data->wnm.sleep_intval, NULL);
3673 		break;
3674 	}
3675 }
3676 #endif /* CONFIG_WNM */
3677 
3678 
3679 #ifdef CONFIG_IEEE80211R
3680 static void
wpa_supplicant_event_ft_response(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3681 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
3682 				 union wpa_event_data *data)
3683 {
3684 	if (data == NULL)
3685 		return;
3686 
3687 	if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
3688 				    data->ft_ies.ies_len,
3689 				    data->ft_ies.ft_action,
3690 				    data->ft_ies.target_ap,
3691 				    data->ft_ies.ric_ies,
3692 				    data->ft_ies.ric_ies_len) < 0) {
3693 		/* TODO: prevent MLME/driver from trying to associate? */
3694 	}
3695 }
3696 #endif /* CONFIG_IEEE80211R */
3697 
3698 
3699 #ifdef CONFIG_IBSS_RSN
wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3700 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
3701 						union wpa_event_data *data)
3702 {
3703 	struct wpa_ssid *ssid;
3704 	if (wpa_s->wpa_state < WPA_ASSOCIATED)
3705 		return;
3706 	if (data == NULL)
3707 		return;
3708 	ssid = wpa_s->current_ssid;
3709 	if (ssid == NULL)
3710 		return;
3711 	if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
3712 		return;
3713 
3714 	ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
3715 }
3716 
3717 
wpa_supplicant_event_ibss_auth(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3718 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
3719 					   union wpa_event_data *data)
3720 {
3721 	struct wpa_ssid *ssid = wpa_s->current_ssid;
3722 
3723 	if (ssid == NULL)
3724 		return;
3725 
3726 	/* check if the ssid is correctly configured as IBSS/RSN */
3727 	if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
3728 		return;
3729 
3730 	ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
3731 			     data->rx_mgmt.frame_len);
3732 }
3733 #endif /* CONFIG_IBSS_RSN */
3734 
3735 
3736 #ifdef CONFIG_IEEE80211R
ft_rx_action(struct wpa_supplicant * wpa_s,const u8 * data,size_t len)3737 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
3738 			 size_t len)
3739 {
3740 	const u8 *sta_addr, *target_ap_addr;
3741 	u16 status;
3742 
3743 	wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
3744 	if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
3745 		return; /* only SME case supported for now */
3746 	if (len < 1 + 2 * ETH_ALEN + 2)
3747 		return;
3748 	if (data[0] != 2)
3749 		return; /* Only FT Action Response is supported for now */
3750 	sta_addr = data + 1;
3751 	target_ap_addr = data + 1 + ETH_ALEN;
3752 	status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
3753 	wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
3754 		MACSTR " TargetAP " MACSTR " status %u",
3755 		MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
3756 
3757 	if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
3758 		wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
3759 			" in FT Action Response", MAC2STR(sta_addr));
3760 		return;
3761 	}
3762 
3763 	if (status) {
3764 		wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
3765 			"failure (status code %d)", status);
3766 		/* TODO: report error to FT code(?) */
3767 		return;
3768 	}
3769 
3770 	if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
3771 				    len - (1 + 2 * ETH_ALEN + 2), 1,
3772 				    target_ap_addr, NULL, 0) < 0)
3773 		return;
3774 
3775 #ifdef CONFIG_SME
3776 	{
3777 		struct wpa_bss *bss;
3778 		bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
3779 		if (bss)
3780 			wpa_s->sme.freq = bss->freq;
3781 		wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
3782 		sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
3783 			      WLAN_AUTH_FT);
3784 	}
3785 #endif /* CONFIG_SME */
3786 }
3787 #endif /* CONFIG_IEEE80211R */
3788 
3789 
wpa_supplicant_event_unprot_deauth(struct wpa_supplicant * wpa_s,struct unprot_deauth * e)3790 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
3791 					       struct unprot_deauth *e)
3792 {
3793 	wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
3794 		   "dropped: " MACSTR " -> " MACSTR
3795 		   " (reason code %u)",
3796 		   MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
3797 	sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
3798 }
3799 
3800 
wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant * wpa_s,struct unprot_disassoc * e)3801 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
3802 						 struct unprot_disassoc *e)
3803 {
3804 	wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
3805 		   "dropped: " MACSTR " -> " MACSTR
3806 		   " (reason code %u)",
3807 		   MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
3808 	sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
3809 }
3810 
3811 
wpas_event_disconnect(struct wpa_supplicant * wpa_s,const u8 * addr,u16 reason_code,int locally_generated,const u8 * ie,size_t ie_len,int deauth)3812 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
3813 				  u16 reason_code, int locally_generated,
3814 				  const u8 *ie, size_t ie_len, int deauth)
3815 {
3816 #ifdef CONFIG_AP
3817 	if (wpa_s->ap_iface && addr) {
3818 		hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
3819 		return;
3820 	}
3821 
3822 	if (wpa_s->ap_iface) {
3823 		wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
3824 		return;
3825 	}
3826 #endif /* CONFIG_AP */
3827 
3828 	if (!locally_generated)
3829 		wpa_s->own_disconnect_req = 0;
3830 
3831 	wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
3832 
3833 	if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
3834 	      ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3835 		(wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
3836 	       eapol_sm_failed(wpa_s->eapol))) &&
3837 	     !wpa_s->eap_expected_failure))
3838 		wpas_auth_failed(wpa_s, "AUTH_FAILED");
3839 
3840 #ifdef CONFIG_P2P
3841 	if (deauth && reason_code > 0) {
3842 		if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
3843 					  locally_generated) > 0) {
3844 			/*
3845 			 * The interface was removed, so cannot continue
3846 			 * processing any additional operations after this.
3847 			 */
3848 			return;
3849 		}
3850 	}
3851 #endif /* CONFIG_P2P */
3852 
3853 	wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
3854 					     locally_generated);
3855 }
3856 
3857 
wpas_event_disassoc(struct wpa_supplicant * wpa_s,struct disassoc_info * info)3858 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
3859 				struct disassoc_info *info)
3860 {
3861 	u16 reason_code = 0;
3862 	int locally_generated = 0;
3863 	const u8 *addr = NULL;
3864 	const u8 *ie = NULL;
3865 	size_t ie_len = 0;
3866 
3867 	wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
3868 
3869 	if (info) {
3870 		addr = info->addr;
3871 		ie = info->ie;
3872 		ie_len = info->ie_len;
3873 		reason_code = info->reason_code;
3874 		locally_generated = info->locally_generated;
3875 		wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s", reason_code,
3876 			reason2str(reason_code),
3877 			locally_generated ? " locally_generated=1" : "");
3878 		if (addr)
3879 			wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3880 				MAC2STR(addr));
3881 		wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
3882 			    ie, ie_len);
3883 	}
3884 
3885 #ifdef CONFIG_AP
3886 	if (wpa_s->ap_iface && info && info->addr) {
3887 		hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
3888 		return;
3889 	}
3890 
3891 	if (wpa_s->ap_iface) {
3892 		wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
3893 		return;
3894 	}
3895 #endif /* CONFIG_AP */
3896 
3897 #ifdef CONFIG_P2P
3898 	if (info) {
3899 		wpas_p2p_disassoc_notif(
3900 			wpa_s, info->addr, reason_code, info->ie, info->ie_len,
3901 			locally_generated);
3902 	}
3903 #endif /* CONFIG_P2P */
3904 
3905 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3906 		sme_event_disassoc(wpa_s, info);
3907 
3908 	wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
3909 			      ie, ie_len, 0);
3910 }
3911 
3912 
wpas_event_deauth(struct wpa_supplicant * wpa_s,struct deauth_info * info)3913 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
3914 			      struct deauth_info *info)
3915 {
3916 	u16 reason_code = 0;
3917 	int locally_generated = 0;
3918 	const u8 *addr = NULL;
3919 	const u8 *ie = NULL;
3920 	size_t ie_len = 0;
3921 
3922 	wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
3923 
3924 	if (info) {
3925 		addr = info->addr;
3926 		ie = info->ie;
3927 		ie_len = info->ie_len;
3928 		reason_code = info->reason_code;
3929 		locally_generated = info->locally_generated;
3930 		wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s",
3931 			reason_code, reason2str(reason_code),
3932 			locally_generated ? " locally_generated=1" : "");
3933 		if (addr) {
3934 			wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3935 				MAC2STR(addr));
3936 		}
3937 		wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
3938 			    ie, ie_len);
3939 	}
3940 
3941 	wpa_reset_ft_completed(wpa_s->wpa);
3942 
3943 	wpas_event_disconnect(wpa_s, addr, reason_code,
3944 			      locally_generated, ie, ie_len, 1);
3945 }
3946 
3947 
reg_init_str(enum reg_change_initiator init)3948 static const char * reg_init_str(enum reg_change_initiator init)
3949 {
3950 	switch (init) {
3951 	case REGDOM_SET_BY_CORE:
3952 		return "CORE";
3953 	case REGDOM_SET_BY_USER:
3954 		return "USER";
3955 	case REGDOM_SET_BY_DRIVER:
3956 		return "DRIVER";
3957 	case REGDOM_SET_BY_COUNTRY_IE:
3958 		return "COUNTRY_IE";
3959 	case REGDOM_BEACON_HINT:
3960 		return "BEACON_HINT";
3961 	}
3962 	return "?";
3963 }
3964 
3965 
reg_type_str(enum reg_type type)3966 static const char * reg_type_str(enum reg_type type)
3967 {
3968 	switch (type) {
3969 	case REGDOM_TYPE_UNKNOWN:
3970 		return "UNKNOWN";
3971 	case REGDOM_TYPE_COUNTRY:
3972 		return "COUNTRY";
3973 	case REGDOM_TYPE_WORLD:
3974 		return "WORLD";
3975 	case REGDOM_TYPE_CUSTOM_WORLD:
3976 		return "CUSTOM_WORLD";
3977 	case REGDOM_TYPE_INTERSECTION:
3978 		return "INTERSECTION";
3979 	}
3980 	return "?";
3981 }
3982 
3983 
wpa_supplicant_update_channel_list(struct wpa_supplicant * wpa_s,struct channel_list_changed * info)3984 void wpa_supplicant_update_channel_list(struct wpa_supplicant *wpa_s,
3985 					struct channel_list_changed *info)
3986 {
3987 	struct wpa_supplicant *ifs;
3988 	u8 dfs_domain;
3989 
3990 	/*
3991 	 * To allow backwards compatibility with higher level layers that
3992 	 * assumed the REGDOM_CHANGE event is sent over the initially added
3993 	 * interface. Find the highest parent of this interface and use it to
3994 	 * send the event.
3995 	 */
3996 	for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
3997 		;
3998 
3999 	if (info) {
4000 		wpa_msg(ifs, MSG_INFO,
4001 			WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
4002 			reg_init_str(info->initiator), reg_type_str(info->type),
4003 			info->alpha2[0] ? " alpha2=" : "",
4004 			info->alpha2[0] ? info->alpha2 : "");
4005 	}
4006 
4007 	if (wpa_s->drv_priv == NULL)
4008 		return; /* Ignore event during drv initialization */
4009 
4010 	dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
4011 			 radio_list) {
4012 		wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
4013 			   ifs->ifname);
4014 		free_hw_features(ifs);
4015 		ifs->hw.modes = wpa_drv_get_hw_feature_data(
4016 			ifs, &ifs->hw.num_modes, &ifs->hw.flags, &dfs_domain);
4017 
4018 		/* Restart PNO/sched_scan with updated channel list */
4019 		if (ifs->pno) {
4020 			wpas_stop_pno(ifs);
4021 			wpas_start_pno(ifs);
4022 		} else if (ifs->sched_scanning && !ifs->pno_sched_pending) {
4023 			wpa_dbg(ifs, MSG_DEBUG,
4024 				"Channel list changed - restart sched_scan");
4025 			wpas_scan_restart_sched_scan(ifs);
4026 		}
4027 	}
4028 
4029 	wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
4030 }
4031 
4032 
wpas_event_rx_mgmt_action(struct wpa_supplicant * wpa_s,const u8 * frame,size_t len,int freq,int rssi)4033 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
4034 				      const u8 *frame, size_t len, int freq,
4035 				      int rssi)
4036 {
4037 	const struct ieee80211_mgmt *mgmt;
4038 	const u8 *payload;
4039 	size_t plen;
4040 	u8 category;
4041 
4042 	if (len < IEEE80211_HDRLEN + 2)
4043 		return;
4044 
4045 	mgmt = (const struct ieee80211_mgmt *) frame;
4046 	payload = frame + IEEE80211_HDRLEN;
4047 	category = *payload++;
4048 	plen = len - IEEE80211_HDRLEN - 1;
4049 
4050 	wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
4051 		" Category=%u DataLen=%d freq=%d MHz",
4052 		MAC2STR(mgmt->sa), category, (int) plen, freq);
4053 
4054 	if (category == WLAN_ACTION_WMM) {
4055 		wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
4056 		return;
4057 	}
4058 
4059 #ifdef CONFIG_IEEE80211R
4060 	if (category == WLAN_ACTION_FT) {
4061 		ft_rx_action(wpa_s, payload, plen);
4062 		return;
4063 	}
4064 #endif /* CONFIG_IEEE80211R */
4065 
4066 #ifdef CONFIG_SME
4067 	if (category == WLAN_ACTION_SA_QUERY) {
4068 		sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
4069 		return;
4070 	}
4071 #endif /* CONFIG_SME */
4072 
4073 #ifdef CONFIG_WNM
4074 	if (mgmt->u.action.category == WLAN_ACTION_WNM) {
4075 		ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
4076 		return;
4077 	}
4078 #endif /* CONFIG_WNM */
4079 
4080 #ifdef CONFIG_GAS
4081 	if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
4082 	     mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
4083 	    gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
4084 			 mgmt->u.action.category,
4085 			 payload, plen, freq) == 0)
4086 		return;
4087 #endif /* CONFIG_GAS */
4088 
4089 #ifdef CONFIG_GAS_SERVER
4090 	if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
4091 	     mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
4092 	    gas_server_rx(wpa_s->gas_server, mgmt->da, mgmt->sa, mgmt->bssid,
4093 			  mgmt->u.action.category,
4094 			  payload, plen, freq) == 0)
4095 		return;
4096 #endif /* CONFIG_GAS_SERVER */
4097 
4098 #ifdef CONFIG_TDLS
4099 	if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
4100 	    payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
4101 		wpa_dbg(wpa_s, MSG_DEBUG,
4102 			"TDLS: Received Discovery Response from " MACSTR,
4103 			MAC2STR(mgmt->sa));
4104 		return;
4105 	}
4106 #endif /* CONFIG_TDLS */
4107 
4108 #ifdef CONFIG_INTERWORKING
4109 	if (category == WLAN_ACTION_QOS && plen >= 1 &&
4110 	    payload[0] == QOS_QOS_MAP_CONFIG) {
4111 		const u8 *pos = payload + 1;
4112 		size_t qlen = plen - 1;
4113 		wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
4114 			MACSTR, MAC2STR(mgmt->sa));
4115 		if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
4116 		    qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
4117 		    pos[1] <= qlen - 2 && pos[1] >= 16)
4118 			wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
4119 		return;
4120 	}
4121 #endif /* CONFIG_INTERWORKING */
4122 
4123 	if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4124 	    payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
4125 		wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
4126 							  mgmt->da,
4127 							  payload + 1,
4128 							  plen - 1);
4129 		return;
4130 	}
4131 
4132 	if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4133 	    payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
4134 		wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
4135 		return;
4136 	}
4137 
4138 	if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4139 	    payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
4140 		wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
4141 							 payload + 1, plen - 1,
4142 							 rssi);
4143 		return;
4144 	}
4145 
4146 #ifdef CONFIG_FST
4147 	if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
4148 		fst_rx_action(wpa_s->fst, mgmt, len);
4149 		return;
4150 	}
4151 #endif /* CONFIG_FST */
4152 
4153 #ifdef CONFIG_DPP
4154 	if (category == WLAN_ACTION_PUBLIC && plen >= 5 &&
4155 	    payload[0] == WLAN_PA_VENDOR_SPECIFIC &&
4156 	    WPA_GET_BE24(&payload[1]) == OUI_WFA &&
4157 	    payload[4] == DPP_OUI_TYPE) {
4158 		payload++;
4159 		plen--;
4160 		wpas_dpp_rx_action(wpa_s, mgmt->sa, payload, plen, freq);
4161 		return;
4162 	}
4163 #endif /* CONFIG_DPP */
4164 
4165 	wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
4166 			   category, payload, plen, freq);
4167 	if (wpa_s->ifmsh)
4168 		mesh_mpm_action_rx(wpa_s, mgmt, len);
4169 }
4170 
4171 
wpa_supplicant_notify_avoid_freq(struct wpa_supplicant * wpa_s,union wpa_event_data * event)4172 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
4173 					     union wpa_event_data *event)
4174 {
4175 	struct wpa_freq_range_list *list;
4176 	char *str = NULL;
4177 
4178 	list = &event->freq_range;
4179 
4180 	if (list->num)
4181 		str = freq_range_list_str(list);
4182 	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
4183 		str ? str : "");
4184 
4185 #ifdef CONFIG_P2P
4186 	if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
4187 		wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
4188 			__func__);
4189 	} else {
4190 		wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
4191 
4192 		/*
4193 		 * The update channel flow will also take care of moving a GO
4194 		 * from the unsafe frequency if needed.
4195 		 */
4196 		wpas_p2p_update_channel_list(wpa_s,
4197 					     WPAS_P2P_CHANNEL_UPDATE_AVOID);
4198 	}
4199 #endif /* CONFIG_P2P */
4200 
4201 	os_free(str);
4202 }
4203 
4204 
wpa_supplicant_event_port_authorized(struct wpa_supplicant * wpa_s)4205 static void wpa_supplicant_event_port_authorized(struct wpa_supplicant *wpa_s)
4206 {
4207 	if (wpa_s->wpa_state == WPA_ASSOCIATED) {
4208 		wpa_supplicant_cancel_auth_timeout(wpa_s);
4209 		wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
4210 		eapol_sm_notify_portValid(wpa_s->eapol, true);
4211 		eapol_sm_notify_eap_success(wpa_s->eapol, true);
4212 		wpa_s->drv_authorized_port = 1;
4213 	}
4214 }
4215 
4216 
wpas_event_cac_ms(const struct wpa_supplicant * wpa_s,int freq)4217 static unsigned int wpas_event_cac_ms(const struct wpa_supplicant *wpa_s,
4218 				      int freq)
4219 {
4220 	size_t i;
4221 	int j;
4222 
4223 	for (i = 0; i < wpa_s->hw.num_modes; i++) {
4224 		const struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i];
4225 
4226 		for (j = 0; j < mode->num_channels; j++) {
4227 			const struct hostapd_channel_data *chan;
4228 
4229 			chan = &mode->channels[j];
4230 			if (chan->freq == freq)
4231 				return chan->dfs_cac_ms;
4232 		}
4233 	}
4234 
4235 	return 0;
4236 }
4237 
4238 
wpas_event_dfs_cac_started(struct wpa_supplicant * wpa_s,struct dfs_event * radar)4239 static void wpas_event_dfs_cac_started(struct wpa_supplicant *wpa_s,
4240 				       struct dfs_event *radar)
4241 {
4242 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4243 	if (wpa_s->ap_iface || wpa_s->ifmsh) {
4244 		wpas_ap_event_dfs_cac_started(wpa_s, radar);
4245 	} else
4246 #endif /* NEED_AP_MLME && CONFIG_AP */
4247 	{
4248 		unsigned int cac_time = wpas_event_cac_ms(wpa_s, radar->freq);
4249 
4250 		cac_time /= 1000; /* convert from ms to sec */
4251 		if (!cac_time)
4252 			cac_time = 10 * 60; /* max timeout: 10 minutes */
4253 
4254 		/* Restart auth timeout: CAC time added to initial timeout */
4255 		wpas_auth_timeout_restart(wpa_s, cac_time);
4256 	}
4257 }
4258 
4259 
wpas_event_dfs_cac_finished(struct wpa_supplicant * wpa_s,struct dfs_event * radar)4260 static void wpas_event_dfs_cac_finished(struct wpa_supplicant *wpa_s,
4261 					struct dfs_event *radar)
4262 {
4263 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4264 	if (wpa_s->ap_iface || wpa_s->ifmsh) {
4265 		wpas_ap_event_dfs_cac_finished(wpa_s, radar);
4266 	} else
4267 #endif /* NEED_AP_MLME && CONFIG_AP */
4268 	{
4269 		/* Restart auth timeout with original value after CAC is
4270 		 * finished */
4271 		wpas_auth_timeout_restart(wpa_s, 0);
4272 	}
4273 }
4274 
4275 
wpas_event_dfs_cac_aborted(struct wpa_supplicant * wpa_s,struct dfs_event * radar)4276 static void wpas_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s,
4277 				       struct dfs_event *radar)
4278 {
4279 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4280 	if (wpa_s->ap_iface || wpa_s->ifmsh) {
4281 		wpas_ap_event_dfs_cac_aborted(wpa_s, radar);
4282 	} else
4283 #endif /* NEED_AP_MLME && CONFIG_AP */
4284 	{
4285 		/* Restart auth timeout with original value after CAC is
4286 		 * aborted */
4287 		wpas_auth_timeout_restart(wpa_s, 0);
4288 	}
4289 }
4290 
4291 
wpa_supplicant_event_assoc_auth(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4292 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
4293 					    union wpa_event_data *data)
4294 {
4295 	wpa_dbg(wpa_s, MSG_DEBUG,
4296 		"Connection authorized by device, previous state %d",
4297 		wpa_s->wpa_state);
4298 
4299 	wpa_supplicant_event_port_authorized(wpa_s);
4300 
4301 	wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
4302 	wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
4303 			       data->assoc_info.ptk_kck_len,
4304 			       data->assoc_info.ptk_kek,
4305 			       data->assoc_info.ptk_kek_len);
4306 #ifdef CONFIG_FILS
4307 	if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
4308 		struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
4309 		const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
4310 
4311 		/* Update ERP next sequence number */
4312 		eapol_sm_update_erp_next_seq_num(
4313 			wpa_s->eapol, data->assoc_info.fils_erp_next_seq_num);
4314 
4315 		if (data->assoc_info.fils_pmk && data->assoc_info.fils_pmkid) {
4316 			/* Add the new PMK and PMKID to the PMKSA cache */
4317 			wpa_sm_pmksa_cache_add(wpa_s->wpa,
4318 					       data->assoc_info.fils_pmk,
4319 					       data->assoc_info.fils_pmk_len,
4320 					       data->assoc_info.fils_pmkid,
4321 					       wpa_s->bssid, fils_cache_id);
4322 		} else if (data->assoc_info.fils_pmkid) {
4323 			/* Update the current PMKSA used for this connection */
4324 			pmksa_cache_set_current(wpa_s->wpa,
4325 						data->assoc_info.fils_pmkid,
4326 						NULL, NULL, 0, NULL, 0);
4327 		}
4328 	}
4329 #endif /* CONFIG_FILS */
4330 }
4331 
4332 
wpas_event_assoc_reject(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4333 static void wpas_event_assoc_reject(struct wpa_supplicant *wpa_s,
4334 				    union wpa_event_data *data)
4335 {
4336 	const u8 *bssid = data->assoc_reject.bssid;
4337 #ifdef CONFIG_MBO
4338 	struct wpa_bss *reject_bss;
4339 #endif /* CONFIG_MBO */
4340 
4341 	if (!bssid || is_zero_ether_addr(bssid))
4342 		bssid = wpa_s->pending_bssid;
4343 #ifdef CONFIG_MBO
4344 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
4345 		reject_bss = wpa_s->current_bss;
4346 	else
4347 		reject_bss = wpa_bss_get_bssid(wpa_s, bssid);
4348 #endif /* CONFIG_MBO */
4349 
4350 	if (data->assoc_reject.bssid)
4351 		wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
4352 			"bssid=" MACSTR	" status_code=%u%s%s%s",
4353 			MAC2STR(data->assoc_reject.bssid),
4354 			data->assoc_reject.status_code,
4355 			data->assoc_reject.timed_out ? " timeout" : "",
4356 			data->assoc_reject.timeout_reason ? "=" : "",
4357 			data->assoc_reject.timeout_reason ?
4358 			data->assoc_reject.timeout_reason : "");
4359 	else
4360 		wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
4361 			"status_code=%u%s%s%s",
4362 			data->assoc_reject.status_code,
4363 			data->assoc_reject.timed_out ? " timeout" : "",
4364 			data->assoc_reject.timeout_reason ? "=" : "",
4365 			data->assoc_reject.timeout_reason ?
4366 			data->assoc_reject.timeout_reason : "");
4367 	wpa_s->assoc_status_code = data->assoc_reject.status_code;
4368 	wpas_notify_assoc_status_code(wpa_s,
4369 				      bssid, data->assoc_reject.timed_out);
4370 
4371 #ifdef CONFIG_OWE
4372 	if (data->assoc_reject.status_code ==
4373 	    WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED &&
4374 	    wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
4375 	    wpa_s->current_ssid &&
4376 	    wpa_s->current_ssid->owe_group == 0 &&
4377 	    wpa_s->last_owe_group != 21) {
4378 		struct wpa_ssid *ssid = wpa_s->current_ssid;
4379 		struct wpa_bss *bss = wpa_s->current_bss;
4380 
4381 		if (!bss) {
4382 			bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
4383 			if (!bss) {
4384 				wpas_connection_failed(wpa_s, bssid);
4385 				wpa_supplicant_mark_disassoc(wpa_s);
4386 				return;
4387 			}
4388 		}
4389 		wpa_printf(MSG_DEBUG, "OWE: Try next supported DH group");
4390 		wpas_connect_work_done(wpa_s);
4391 		wpa_supplicant_mark_disassoc(wpa_s);
4392 		wpa_supplicant_connect(wpa_s, bss, ssid);
4393 		return;
4394 	}
4395 #endif /* CONFIG_OWE */
4396 
4397 #ifdef CONFIG_DPP2
4398 	/* Try to follow AP's PFS policy. WLAN_STATUS_ASSOC_DENIED_UNSPEC is
4399 	 * the status code defined in the DPP R2 tech spec.
4400 	 * WLAN_STATUS_AKMP_NOT_VALID is addressed in the same manner as an
4401 	 * interoperability workaround with older hostapd implementation. */
4402 	if (DPP_VERSION > 1 && wpa_s->current_ssid &&
4403 	    wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP &&
4404 	    wpa_s->current_ssid->dpp_pfs == 0 &&
4405 	    (data->assoc_reject.status_code ==
4406 	     WLAN_STATUS_ASSOC_DENIED_UNSPEC ||
4407 	     data->assoc_reject.status_code == WLAN_STATUS_AKMP_NOT_VALID)) {
4408 		struct wpa_ssid *ssid = wpa_s->current_ssid;
4409 		struct wpa_bss *bss = wpa_s->current_bss;
4410 
4411 		wpa_s->current_ssid->dpp_pfs_fallback ^= 1;
4412 		if (!bss)
4413 			bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
4414 		if (!bss || wpa_s->dpp_pfs_fallback) {
4415 			wpa_printf(MSG_DEBUG,
4416 				   "DPP: Updated PFS policy for next try");
4417 			wpas_connection_failed(wpa_s, bssid);
4418 			wpa_supplicant_mark_disassoc(wpa_s);
4419 			return;
4420 		}
4421 		wpa_printf(MSG_DEBUG, "DPP: Try again with updated PFS policy");
4422 		wpa_s->dpp_pfs_fallback = 1;
4423 		wpas_connect_work_done(wpa_s);
4424 		wpa_supplicant_mark_disassoc(wpa_s);
4425 		wpa_supplicant_connect(wpa_s, bss, ssid);
4426 		return;
4427 	}
4428 #endif /* CONFIG_DPP2 */
4429 
4430 #ifdef CONFIG_MBO
4431 	if (data->assoc_reject.status_code ==
4432 	    WLAN_STATUS_DENIED_POOR_CHANNEL_CONDITIONS &&
4433 	    reject_bss && data->assoc_reject.resp_ies) {
4434 		const u8 *rssi_rej;
4435 
4436 		rssi_rej = mbo_get_attr_from_ies(
4437 			data->assoc_reject.resp_ies,
4438 			data->assoc_reject.resp_ies_len,
4439 			OCE_ATTR_ID_RSSI_BASED_ASSOC_REJECT);
4440 		if (rssi_rej && rssi_rej[1] == 2) {
4441 			wpa_printf(MSG_DEBUG,
4442 				   "OCE: RSSI-based association rejection from "
4443 				   MACSTR " (Delta RSSI: %u, Retry Delay: %u)",
4444 				   MAC2STR(reject_bss->bssid),
4445 				   rssi_rej[2], rssi_rej[3]);
4446 			wpa_bss_tmp_disallow(wpa_s,
4447 					     reject_bss->bssid,
4448 					     rssi_rej[3],
4449 					     rssi_rej[2] + reject_bss->level);
4450 		}
4451 	}
4452 #endif /* CONFIG_MBO */
4453 
4454 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
4455 		sme_event_assoc_reject(wpa_s, data);
4456 		return;
4457 	}
4458 
4459 	/* Driver-based SME cases */
4460 
4461 #ifdef CONFIG_SAE
4462 	if (wpa_s->current_ssid &&
4463 	    wpa_key_mgmt_sae(wpa_s->current_ssid->key_mgmt) &&
4464 	    !data->assoc_reject.timed_out) {
4465 		wpa_dbg(wpa_s, MSG_DEBUG, "SAE: Drop PMKSA cache entry");
4466 		wpa_sm_aborted_cached(wpa_s->wpa);
4467 		wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
4468 	}
4469 #endif /* CONFIG_SAE */
4470 
4471 #ifdef CONFIG_DPP
4472 	if (wpa_s->current_ssid &&
4473 	    wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP &&
4474 	    !data->assoc_reject.timed_out) {
4475 		wpa_dbg(wpa_s, MSG_DEBUG, "DPP: Drop PMKSA cache entry");
4476 		wpa_sm_aborted_cached(wpa_s->wpa);
4477 		wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
4478 	}
4479 #endif /* CONFIG_DPP */
4480 
4481 #ifdef CONFIG_FILS
4482 	/* Update ERP next sequence number */
4483 	if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
4484 		eapol_sm_update_erp_next_seq_num(
4485 			wpa_s->eapol,
4486 			data->assoc_reject.fils_erp_next_seq_num);
4487 		fils_connection_failure(wpa_s);
4488 	}
4489 #endif /* CONFIG_FILS */
4490 
4491 	wpas_connection_failed(wpa_s, bssid);
4492 	wpa_supplicant_mark_disassoc(wpa_s);
4493 }
4494 
4495 
wpas_event_unprot_beacon(struct wpa_supplicant * wpa_s,struct unprot_beacon * data)4496 static void wpas_event_unprot_beacon(struct wpa_supplicant *wpa_s,
4497 				     struct unprot_beacon *data)
4498 {
4499 	struct wpabuf *buf;
4500 	int res;
4501 
4502 	if (!data || wpa_s->wpa_state != WPA_COMPLETED ||
4503 	    os_memcmp(data->sa, wpa_s->bssid, ETH_ALEN) != 0)
4504 		return;
4505 	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_UNPROT_BEACON MACSTR,
4506 		MAC2STR(data->sa));
4507 
4508 	buf = wpabuf_alloc(4);
4509 	if (!buf)
4510 		return;
4511 
4512 	wpabuf_put_u8(buf, WLAN_ACTION_WNM);
4513 	wpabuf_put_u8(buf, WNM_NOTIFICATION_REQ);
4514 	wpabuf_put_u8(buf, 1); /* Dialog Token */
4515 	wpabuf_put_u8(buf, WNM_NOTIF_TYPE_BEACON_PROTECTION_FAILURE);
4516 
4517 	res = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
4518 				  wpa_s->own_addr, wpa_s->bssid,
4519 				  wpabuf_head(buf), wpabuf_len(buf), 0);
4520 	if (res < 0)
4521 		wpa_printf(MSG_DEBUG,
4522 			   "Failed to send WNM-Notification Request frame");
4523 
4524 	wpabuf_free(buf);
4525 }
4526 
4527 
wpa_supplicant_event(void * ctx,enum wpa_event_type event,union wpa_event_data * data)4528 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
4529 			  union wpa_event_data *data)
4530 {
4531 	struct wpa_supplicant *wpa_s = ctx;
4532 	int resched;
4533 	struct os_reltime age, clear_at;
4534 #ifndef CONFIG_NO_STDOUT_DEBUG
4535 	int level = MSG_DEBUG;
4536 #endif /* CONFIG_NO_STDOUT_DEBUG */
4537 
4538 	if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
4539 	    event != EVENT_INTERFACE_ENABLED &&
4540 	    event != EVENT_INTERFACE_STATUS &&
4541 	    event != EVENT_SCAN_RESULTS &&
4542 	    event != EVENT_SCHED_SCAN_STOPPED) {
4543 		wpa_dbg(wpa_s, MSG_DEBUG,
4544 			"Ignore event %s (%d) while interface is disabled",
4545 			event_to_string(event), event);
4546 		return;
4547 	}
4548 
4549 #ifndef CONFIG_NO_STDOUT_DEBUG
4550 	if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
4551 		const struct ieee80211_hdr *hdr;
4552 		u16 fc;
4553 		hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
4554 		fc = le_to_host16(hdr->frame_control);
4555 		if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
4556 		    WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
4557 			level = MSG_EXCESSIVE;
4558 	}
4559 
4560 	wpa_dbg(wpa_s, level, "Event %s (%d) received",
4561 		event_to_string(event), event);
4562 #endif /* CONFIG_NO_STDOUT_DEBUG */
4563 
4564 	switch (event) {
4565 	case EVENT_AUTH:
4566 #ifdef CONFIG_FST
4567 		if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
4568 					  data->auth.ies_len))
4569 			wpa_printf(MSG_DEBUG,
4570 				   "FST: MB IEs updated from auth IE");
4571 #endif /* CONFIG_FST */
4572 		sme_event_auth(wpa_s, data);
4573 		wpa_s->auth_status_code = data->auth.status_code;
4574 		wpas_notify_auth_status_code(wpa_s);
4575 		break;
4576 	case EVENT_ASSOC:
4577 #ifdef CONFIG_TESTING_OPTIONS
4578 		if (wpa_s->ignore_auth_resp) {
4579 			wpa_printf(MSG_INFO,
4580 				   "EVENT_ASSOC - ignore_auth_resp active!");
4581 			break;
4582 		}
4583 		if (wpa_s->testing_resend_assoc) {
4584 			wpa_printf(MSG_INFO,
4585 				   "EVENT_DEAUTH - testing_resend_assoc");
4586 			break;
4587 		}
4588 #endif /* CONFIG_TESTING_OPTIONS */
4589 		if (wpa_s->disconnected) {
4590 			wpa_printf(MSG_INFO,
4591 				   "Ignore unexpected EVENT_ASSOC in disconnected state");
4592 			break;
4593 		}
4594 		wpa_supplicant_event_assoc(wpa_s, data);
4595 		wpa_s->assoc_status_code = WLAN_STATUS_SUCCESS;
4596 		if (data &&
4597 		    (data->assoc_info.authorized ||
4598 		     (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
4599 		      wpa_fils_is_completed(wpa_s->wpa))))
4600 			wpa_supplicant_event_assoc_auth(wpa_s, data);
4601 		if (data) {
4602 			wpa_msg(wpa_s, MSG_INFO,
4603 				WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
4604 				data->assoc_info.subnet_status);
4605 		}
4606 		break;
4607 	case EVENT_DISASSOC:
4608 		wpas_event_disassoc(wpa_s,
4609 				    data ? &data->disassoc_info : NULL);
4610 		break;
4611 	case EVENT_DEAUTH:
4612 #ifdef CONFIG_TESTING_OPTIONS
4613 		if (wpa_s->ignore_auth_resp) {
4614 			wpa_printf(MSG_INFO,
4615 				   "EVENT_DEAUTH - ignore_auth_resp active!");
4616 			break;
4617 		}
4618 		if (wpa_s->testing_resend_assoc) {
4619 			wpa_printf(MSG_INFO,
4620 				   "EVENT_DEAUTH - testing_resend_assoc");
4621 			break;
4622 		}
4623 #endif /* CONFIG_TESTING_OPTIONS */
4624 		wpas_event_deauth(wpa_s,
4625 				  data ? &data->deauth_info : NULL);
4626 		break;
4627 	case EVENT_MICHAEL_MIC_FAILURE:
4628 		wpa_supplicant_event_michael_mic_failure(wpa_s, data);
4629 		break;
4630 #ifndef CONFIG_NO_SCAN_PROCESSING
4631 	case EVENT_SCAN_STARTED:
4632 		if (wpa_s->own_scan_requested ||
4633 		    (data && !data->scan_info.external_scan)) {
4634 			struct os_reltime diff;
4635 
4636 			os_get_reltime(&wpa_s->scan_start_time);
4637 			os_reltime_sub(&wpa_s->scan_start_time,
4638 				       &wpa_s->scan_trigger_time, &diff);
4639 			wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
4640 				diff.sec, diff.usec);
4641 			wpa_s->own_scan_requested = 0;
4642 			wpa_s->own_scan_running = 1;
4643 			if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
4644 			    wpa_s->manual_scan_use_id) {
4645 				wpa_msg_ctrl(wpa_s, MSG_INFO,
4646 					     WPA_EVENT_SCAN_STARTED "id=%u",
4647 					     wpa_s->manual_scan_id);
4648 			} else {
4649 				wpa_msg_ctrl(wpa_s, MSG_INFO,
4650 					     WPA_EVENT_SCAN_STARTED);
4651 			}
4652 		} else {
4653 			wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
4654 			wpa_s->radio->external_scan_running = 1;
4655 			wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
4656 		}
4657 		break;
4658 	case EVENT_SCAN_RESULTS:
4659 		if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
4660 			wpa_s->scan_res_handler = NULL;
4661 			wpa_s->own_scan_running = 0;
4662 			wpa_s->radio->external_scan_running = 0;
4663 			wpa_s->last_scan_req = NORMAL_SCAN_REQ;
4664 			break;
4665 		}
4666 
4667 		if (!(data && data->scan_info.external_scan) &&
4668 		    os_reltime_initialized(&wpa_s->scan_start_time)) {
4669 			struct os_reltime now, diff;
4670 			os_get_reltime(&now);
4671 			os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
4672 			wpa_s->scan_start_time.sec = 0;
4673 			wpa_s->scan_start_time.usec = 0;
4674 			wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
4675 				diff.sec, diff.usec);
4676 		}
4677 		if (wpa_supplicant_event_scan_results(wpa_s, data))
4678 			break; /* interface may have been removed */
4679 		if (!(data && data->scan_info.external_scan))
4680 			wpa_s->own_scan_running = 0;
4681 		if (data && data->scan_info.nl_scan_event)
4682 			wpa_s->radio->external_scan_running = 0;
4683 		radio_work_check_next(wpa_s);
4684 		break;
4685 #endif /* CONFIG_NO_SCAN_PROCESSING */
4686 	case EVENT_ASSOCINFO:
4687 		wpa_supplicant_event_associnfo(wpa_s, data);
4688 		break;
4689 	case EVENT_INTERFACE_STATUS:
4690 		wpa_supplicant_event_interface_status(wpa_s, data);
4691 		break;
4692 	case EVENT_PMKID_CANDIDATE:
4693 		wpa_supplicant_event_pmkid_candidate(wpa_s, data);
4694 		break;
4695 #ifdef CONFIG_TDLS
4696 	case EVENT_TDLS:
4697 		wpa_supplicant_event_tdls(wpa_s, data);
4698 		break;
4699 #endif /* CONFIG_TDLS */
4700 #ifdef CONFIG_WNM
4701 	case EVENT_WNM:
4702 		wpa_supplicant_event_wnm(wpa_s, data);
4703 		break;
4704 #endif /* CONFIG_WNM */
4705 #ifdef CONFIG_IEEE80211R
4706 	case EVENT_FT_RESPONSE:
4707 		wpa_supplicant_event_ft_response(wpa_s, data);
4708 		break;
4709 #endif /* CONFIG_IEEE80211R */
4710 #ifdef CONFIG_IBSS_RSN
4711 	case EVENT_IBSS_RSN_START:
4712 		wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
4713 		break;
4714 #endif /* CONFIG_IBSS_RSN */
4715 	case EVENT_ASSOC_REJECT:
4716 		wpas_event_assoc_reject(wpa_s, data);
4717 		break;
4718 	case EVENT_AUTH_TIMED_OUT:
4719 		/* It is possible to get this event from earlier connection */
4720 		if (wpa_s->current_ssid &&
4721 		    wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
4722 			wpa_dbg(wpa_s, MSG_DEBUG,
4723 				"Ignore AUTH_TIMED_OUT in mesh configuration");
4724 			break;
4725 		}
4726 		if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
4727 			sme_event_auth_timed_out(wpa_s, data);
4728 		break;
4729 	case EVENT_ASSOC_TIMED_OUT:
4730 		/* It is possible to get this event from earlier connection */
4731 		if (wpa_s->current_ssid &&
4732 		    wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
4733 			wpa_dbg(wpa_s, MSG_DEBUG,
4734 				"Ignore ASSOC_TIMED_OUT in mesh configuration");
4735 			break;
4736 		}
4737 		if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
4738 			sme_event_assoc_timed_out(wpa_s, data);
4739 		break;
4740 	case EVENT_TX_STATUS:
4741 		wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
4742 			" type=%d stype=%d",
4743 			MAC2STR(data->tx_status.dst),
4744 			data->tx_status.type, data->tx_status.stype);
4745 #ifdef CONFIG_AP
4746 		if (wpa_s->ap_iface == NULL) {
4747 #ifdef CONFIG_OFFCHANNEL
4748 			if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
4749 			    data->tx_status.stype == WLAN_FC_STYPE_ACTION)
4750 				offchannel_send_action_tx_status(
4751 					wpa_s, data->tx_status.dst,
4752 					data->tx_status.data,
4753 					data->tx_status.data_len,
4754 					data->tx_status.ack ?
4755 					OFFCHANNEL_SEND_ACTION_SUCCESS :
4756 					OFFCHANNEL_SEND_ACTION_NO_ACK);
4757 #endif /* CONFIG_OFFCHANNEL */
4758 			break;
4759 		}
4760 #endif /* CONFIG_AP */
4761 #ifdef CONFIG_OFFCHANNEL
4762 		wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
4763 			MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
4764 		/*
4765 		 * Catch TX status events for Action frames we sent via group
4766 		 * interface in GO mode, or via standalone AP interface.
4767 		 * Note, wpa_s->p2pdev will be the same as wpa_s->parent,
4768 		 * except when the primary interface is used as a GO interface
4769 		 * (for drivers which do not have group interface concurrency)
4770 		 */
4771 		if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
4772 		    data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
4773 		    os_memcmp(wpa_s->p2pdev->pending_action_dst,
4774 			      data->tx_status.dst, ETH_ALEN) == 0) {
4775 			offchannel_send_action_tx_status(
4776 				wpa_s->p2pdev, data->tx_status.dst,
4777 				data->tx_status.data,
4778 				data->tx_status.data_len,
4779 				data->tx_status.ack ?
4780 				OFFCHANNEL_SEND_ACTION_SUCCESS :
4781 				OFFCHANNEL_SEND_ACTION_NO_ACK);
4782 			break;
4783 		}
4784 #endif /* CONFIG_OFFCHANNEL */
4785 #ifdef CONFIG_AP
4786 		switch (data->tx_status.type) {
4787 		case WLAN_FC_TYPE_MGMT:
4788 			ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
4789 				      data->tx_status.data_len,
4790 				      data->tx_status.stype,
4791 				      data->tx_status.ack);
4792 			break;
4793 		case WLAN_FC_TYPE_DATA:
4794 			ap_tx_status(wpa_s, data->tx_status.dst,
4795 				     data->tx_status.data,
4796 				     data->tx_status.data_len,
4797 				     data->tx_status.ack);
4798 			break;
4799 		}
4800 #endif /* CONFIG_AP */
4801 		break;
4802 #ifdef CONFIG_AP
4803 	case EVENT_EAPOL_TX_STATUS:
4804 		ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
4805 				   data->eapol_tx_status.data,
4806 				   data->eapol_tx_status.data_len,
4807 				   data->eapol_tx_status.ack);
4808 		break;
4809 	case EVENT_DRIVER_CLIENT_POLL_OK:
4810 		ap_client_poll_ok(wpa_s, data->client_poll.addr);
4811 		break;
4812 	case EVENT_RX_FROM_UNKNOWN:
4813 		if (wpa_s->ap_iface == NULL)
4814 			break;
4815 		ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
4816 				       data->rx_from_unknown.wds);
4817 		break;
4818 #endif /* CONFIG_AP */
4819 
4820 	case EVENT_CH_SWITCH_STARTED:
4821 	case EVENT_CH_SWITCH:
4822 		if (!data || !wpa_s->current_ssid)
4823 			break;
4824 
4825 		wpa_msg(wpa_s, MSG_INFO,
4826 			"%sfreq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
4827 			event == EVENT_CH_SWITCH ? WPA_EVENT_CHANNEL_SWITCH :
4828 			WPA_EVENT_CHANNEL_SWITCH_STARTED,
4829 			data->ch_switch.freq,
4830 			data->ch_switch.ht_enabled,
4831 			data->ch_switch.ch_offset,
4832 			channel_width_to_string(data->ch_switch.ch_width),
4833 			data->ch_switch.cf1,
4834 			data->ch_switch.cf2);
4835 		if (event == EVENT_CH_SWITCH_STARTED)
4836 			break;
4837 
4838 		wpa_s->assoc_freq = data->ch_switch.freq;
4839 		wpa_s->current_ssid->frequency = data->ch_switch.freq;
4840 
4841 #ifdef CONFIG_SME
4842 		switch (data->ch_switch.ch_offset) {
4843 		case 1:
4844 			wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_ABOVE;
4845 			break;
4846 		case -1:
4847 			wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_BELOW;
4848 			break;
4849 		default:
4850 			wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_UNKNOWN;
4851 			break;
4852 		}
4853 #endif /* CONFIG_SME */
4854 
4855 #ifdef CONFIG_AP
4856 		if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
4857 		    wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
4858 		    wpa_s->current_ssid->mode == WPAS_MODE_MESH ||
4859 		    wpa_s->current_ssid->mode ==
4860 		    WPAS_MODE_P2P_GROUP_FORMATION) {
4861 			wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
4862 					  data->ch_switch.ht_enabled,
4863 					  data->ch_switch.ch_offset,
4864 					  data->ch_switch.ch_width,
4865 					  data->ch_switch.cf1,
4866 					  data->ch_switch.cf2,
4867 					  1);
4868 		}
4869 #endif /* CONFIG_AP */
4870 
4871 		sme_event_ch_switch(wpa_s);
4872 		wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
4873 		wnm_clear_coloc_intf_reporting(wpa_s);
4874 		break;
4875 #ifdef CONFIG_AP
4876 #ifdef NEED_AP_MLME
4877 	case EVENT_DFS_RADAR_DETECTED:
4878 		if (data)
4879 			wpas_ap_event_dfs_radar_detected(wpa_s,
4880 							 &data->dfs_event);
4881 		break;
4882 	case EVENT_DFS_NOP_FINISHED:
4883 		if (data)
4884 			wpas_ap_event_dfs_cac_nop_finished(wpa_s,
4885 							   &data->dfs_event);
4886 		break;
4887 #endif /* NEED_AP_MLME */
4888 #endif /* CONFIG_AP */
4889 	case EVENT_DFS_CAC_STARTED:
4890 		if (data)
4891 			wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
4892 		break;
4893 	case EVENT_DFS_CAC_FINISHED:
4894 		if (data)
4895 			wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
4896 		break;
4897 	case EVENT_DFS_CAC_ABORTED:
4898 		if (data)
4899 			wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
4900 		break;
4901 	case EVENT_RX_MGMT: {
4902 		u16 fc, stype;
4903 		const struct ieee80211_mgmt *mgmt;
4904 
4905 #ifdef CONFIG_TESTING_OPTIONS
4906 		if (wpa_s->ext_mgmt_frame_handling) {
4907 			struct rx_mgmt *rx = &data->rx_mgmt;
4908 			size_t hex_len = 2 * rx->frame_len + 1;
4909 			char *hex = os_malloc(hex_len);
4910 			if (hex) {
4911 				wpa_snprintf_hex(hex, hex_len,
4912 						 rx->frame, rx->frame_len);
4913 				wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
4914 					rx->freq, rx->datarate, rx->ssi_signal,
4915 					hex);
4916 				os_free(hex);
4917 			}
4918 			break;
4919 		}
4920 #endif /* CONFIG_TESTING_OPTIONS */
4921 
4922 		mgmt = (const struct ieee80211_mgmt *)
4923 			data->rx_mgmt.frame;
4924 		fc = le_to_host16(mgmt->frame_control);
4925 		stype = WLAN_FC_GET_STYPE(fc);
4926 
4927 #ifdef CONFIG_AP
4928 		if (wpa_s->ap_iface == NULL) {
4929 #endif /* CONFIG_AP */
4930 #ifdef CONFIG_P2P
4931 			if (stype == WLAN_FC_STYPE_PROBE_REQ &&
4932 			    data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
4933 				const u8 *src = mgmt->sa;
4934 				const u8 *ie;
4935 				size_t ie_len;
4936 
4937 				ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
4938 				ie_len = data->rx_mgmt.frame_len -
4939 					IEEE80211_HDRLEN;
4940 				wpas_p2p_probe_req_rx(
4941 					wpa_s, src, mgmt->da,
4942 					mgmt->bssid, ie, ie_len,
4943 					data->rx_mgmt.freq,
4944 					data->rx_mgmt.ssi_signal);
4945 				break;
4946 			}
4947 #endif /* CONFIG_P2P */
4948 #ifdef CONFIG_IBSS_RSN
4949 			if (wpa_s->current_ssid &&
4950 			    wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
4951 			    stype == WLAN_FC_STYPE_AUTH &&
4952 			    data->rx_mgmt.frame_len >= 30) {
4953 				wpa_supplicant_event_ibss_auth(wpa_s, data);
4954 				break;
4955 			}
4956 #endif /* CONFIG_IBSS_RSN */
4957 
4958 			if (stype == WLAN_FC_STYPE_ACTION) {
4959 				wpas_event_rx_mgmt_action(
4960 					wpa_s, data->rx_mgmt.frame,
4961 					data->rx_mgmt.frame_len,
4962 					data->rx_mgmt.freq,
4963 					data->rx_mgmt.ssi_signal);
4964 				break;
4965 			}
4966 
4967 			if (wpa_s->ifmsh) {
4968 				mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
4969 				break;
4970 			}
4971 
4972 #ifdef CONFIG_SAE
4973 			if (stype == WLAN_FC_STYPE_AUTH &&
4974 			    !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
4975 			    (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE)) {
4976 				sme_external_auth_mgmt_rx(
4977 					wpa_s, data->rx_mgmt.frame,
4978 					data->rx_mgmt.frame_len);
4979 				break;
4980 			}
4981 #endif /* CONFIG_SAE */
4982 			wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
4983 				"management frame in non-AP mode");
4984 			break;
4985 #ifdef CONFIG_AP
4986 		}
4987 
4988 		if (stype == WLAN_FC_STYPE_PROBE_REQ &&
4989 		    data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
4990 			const u8 *ie;
4991 			size_t ie_len;
4992 
4993 			ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
4994 			ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
4995 
4996 			wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
4997 					 mgmt->bssid, ie, ie_len,
4998 					 data->rx_mgmt.ssi_signal);
4999 		}
5000 
5001 		ap_mgmt_rx(wpa_s, &data->rx_mgmt);
5002 #endif /* CONFIG_AP */
5003 		break;
5004 		}
5005 	case EVENT_RX_PROBE_REQ:
5006 		if (data->rx_probe_req.sa == NULL ||
5007 		    data->rx_probe_req.ie == NULL)
5008 			break;
5009 #ifdef CONFIG_AP
5010 		if (wpa_s->ap_iface) {
5011 			hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
5012 					     data->rx_probe_req.sa,
5013 					     data->rx_probe_req.da,
5014 					     data->rx_probe_req.bssid,
5015 					     data->rx_probe_req.ie,
5016 					     data->rx_probe_req.ie_len,
5017 					     data->rx_probe_req.ssi_signal);
5018 			break;
5019 		}
5020 #endif /* CONFIG_AP */
5021 		wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
5022 				      data->rx_probe_req.da,
5023 				      data->rx_probe_req.bssid,
5024 				      data->rx_probe_req.ie,
5025 				      data->rx_probe_req.ie_len,
5026 				      0,
5027 				      data->rx_probe_req.ssi_signal);
5028 		break;
5029 	case EVENT_REMAIN_ON_CHANNEL:
5030 #ifdef CONFIG_OFFCHANNEL
5031 		offchannel_remain_on_channel_cb(
5032 			wpa_s, data->remain_on_channel.freq,
5033 			data->remain_on_channel.duration);
5034 #endif /* CONFIG_OFFCHANNEL */
5035 		wpas_p2p_remain_on_channel_cb(
5036 			wpa_s, data->remain_on_channel.freq,
5037 			data->remain_on_channel.duration);
5038 #ifdef CONFIG_DPP
5039 		wpas_dpp_remain_on_channel_cb(
5040 			wpa_s, data->remain_on_channel.freq,
5041 			data->remain_on_channel.duration);
5042 #endif /* CONFIG_DPP */
5043 		break;
5044 	case EVENT_CANCEL_REMAIN_ON_CHANNEL:
5045 #ifdef CONFIG_OFFCHANNEL
5046 		offchannel_cancel_remain_on_channel_cb(
5047 			wpa_s, data->remain_on_channel.freq);
5048 #endif /* CONFIG_OFFCHANNEL */
5049 		wpas_p2p_cancel_remain_on_channel_cb(
5050 			wpa_s, data->remain_on_channel.freq);
5051 #ifdef CONFIG_DPP
5052 		wpas_dpp_cancel_remain_on_channel_cb(
5053 			wpa_s, data->remain_on_channel.freq);
5054 #endif /* CONFIG_DPP */
5055 		break;
5056 	case EVENT_EAPOL_RX:
5057 		wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
5058 					data->eapol_rx.data,
5059 					data->eapol_rx.data_len);
5060 		break;
5061 	case EVENT_SIGNAL_CHANGE:
5062 		wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
5063 			"above=%d signal=%d noise=%d txrate=%d",
5064 			data->signal_change.above_threshold,
5065 			data->signal_change.current_signal,
5066 			data->signal_change.current_noise,
5067 			data->signal_change.current_txrate);
5068 		wpa_bss_update_level(wpa_s->current_bss,
5069 				     data->signal_change.current_signal);
5070 		bgscan_notify_signal_change(
5071 			wpa_s, data->signal_change.above_threshold,
5072 			data->signal_change.current_signal,
5073 			data->signal_change.current_noise,
5074 			data->signal_change.current_txrate);
5075 		break;
5076 	case EVENT_INTERFACE_MAC_CHANGED:
5077 		wpa_supplicant_update_mac_addr(wpa_s);
5078 		break;
5079 	case EVENT_INTERFACE_ENABLED:
5080 		wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
5081 		if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
5082 			eloop_cancel_timeout(wpas_clear_disabled_interface,
5083 					     wpa_s, NULL);
5084 			wpa_supplicant_update_mac_addr(wpa_s);
5085 			wpa_supplicant_set_default_scan_ies(wpa_s);
5086 			if (wpa_s->p2p_mgmt) {
5087 				wpa_supplicant_set_state(wpa_s,
5088 							 WPA_DISCONNECTED);
5089 				break;
5090 			}
5091 
5092 #ifdef CONFIG_AP
5093 			if (!wpa_s->ap_iface) {
5094 				wpa_supplicant_set_state(wpa_s,
5095 							 WPA_DISCONNECTED);
5096 				wpa_s->scan_req = NORMAL_SCAN_REQ;
5097 				wpa_supplicant_req_scan(wpa_s, 0, 0);
5098 			} else
5099 				wpa_supplicant_set_state(wpa_s,
5100 							 WPA_COMPLETED);
5101 #else /* CONFIG_AP */
5102 			wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
5103 			wpa_supplicant_req_scan(wpa_s, 0, 0);
5104 #endif /* CONFIG_AP */
5105 		}
5106 		break;
5107 	case EVENT_INTERFACE_DISABLED:
5108 		wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
5109 #ifdef CONFIG_P2P
5110 		if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
5111 		    (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
5112 		     wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
5113 			/*
5114 			 * Mark interface disabled if this happens to end up not
5115 			 * being removed as a separate P2P group interface.
5116 			 */
5117 			wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
5118 			/*
5119 			 * The interface was externally disabled. Remove
5120 			 * it assuming an external entity will start a
5121 			 * new session if needed.
5122 			 */
5123 			if (wpa_s->current_ssid &&
5124 			    wpa_s->current_ssid->p2p_group)
5125 				wpas_p2p_interface_unavailable(wpa_s);
5126 			else
5127 				wpas_p2p_disconnect(wpa_s);
5128 			/*
5129 			 * wpa_s instance may have been freed, so must not use
5130 			 * it here anymore.
5131 			 */
5132 			break;
5133 		}
5134 		if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
5135 		    p2p_in_progress(wpa_s->global->p2p) > 1) {
5136 			/* This radio work will be cancelled, so clear P2P
5137 			 * state as well.
5138 			 */
5139 			p2p_stop_find(wpa_s->global->p2p);
5140 		}
5141 #endif /* CONFIG_P2P */
5142 
5143 		if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
5144 			/*
5145 			 * Indicate disconnection to keep ctrl_iface events
5146 			 * consistent.
5147 			 */
5148 			wpa_supplicant_event_disassoc(
5149 				wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
5150 		}
5151 		wpa_supplicant_mark_disassoc(wpa_s);
5152 		os_reltime_age(&wpa_s->last_scan, &age);
5153 		if (age.sec >= SCAN_RES_VALID_FOR_CONNECT) {
5154 			clear_at.sec = SCAN_RES_VALID_FOR_CONNECT;
5155 			clear_at.usec = 0;
5156 		} else {
5157 			struct os_reltime tmp;
5158 
5159 			tmp.sec = SCAN_RES_VALID_FOR_CONNECT;
5160 			tmp.usec = 0;
5161 			os_reltime_sub(&tmp, &age, &clear_at);
5162 		}
5163 		eloop_register_timeout(clear_at.sec, clear_at.usec,
5164 				       wpas_clear_disabled_interface,
5165 				       wpa_s, NULL);
5166 		radio_remove_works(wpa_s, NULL, 0);
5167 
5168 		wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
5169 		break;
5170 	case EVENT_CHANNEL_LIST_CHANGED:
5171 		wpa_supplicant_update_channel_list(
5172 			wpa_s, &data->channel_list_changed);
5173 		break;
5174 	case EVENT_INTERFACE_UNAVAILABLE:
5175 		wpas_p2p_interface_unavailable(wpa_s);
5176 		break;
5177 	case EVENT_BEST_CHANNEL:
5178 		wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
5179 			"(%d %d %d)",
5180 			data->best_chan.freq_24, data->best_chan.freq_5,
5181 			data->best_chan.freq_overall);
5182 		wpa_s->best_24_freq = data->best_chan.freq_24;
5183 		wpa_s->best_5_freq = data->best_chan.freq_5;
5184 		wpa_s->best_overall_freq = data->best_chan.freq_overall;
5185 		wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
5186 					      data->best_chan.freq_5,
5187 					      data->best_chan.freq_overall);
5188 		break;
5189 	case EVENT_UNPROT_DEAUTH:
5190 		wpa_supplicant_event_unprot_deauth(wpa_s,
5191 						   &data->unprot_deauth);
5192 		break;
5193 	case EVENT_UNPROT_DISASSOC:
5194 		wpa_supplicant_event_unprot_disassoc(wpa_s,
5195 						     &data->unprot_disassoc);
5196 		break;
5197 	case EVENT_STATION_LOW_ACK:
5198 #ifdef CONFIG_AP
5199 		if (wpa_s->ap_iface && data)
5200 			hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
5201 						  data->low_ack.addr);
5202 #endif /* CONFIG_AP */
5203 #ifdef CONFIG_TDLS
5204 		if (data)
5205 			wpa_tdls_disable_unreachable_link(wpa_s->wpa,
5206 							  data->low_ack.addr);
5207 #endif /* CONFIG_TDLS */
5208 		break;
5209 	case EVENT_IBSS_PEER_LOST:
5210 #ifdef CONFIG_IBSS_RSN
5211 		ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
5212 #endif /* CONFIG_IBSS_RSN */
5213 		break;
5214 	case EVENT_DRIVER_GTK_REKEY:
5215 		if (os_memcmp(data->driver_gtk_rekey.bssid,
5216 			      wpa_s->bssid, ETH_ALEN))
5217 			break;
5218 		if (!wpa_s->wpa)
5219 			break;
5220 		wpa_sm_update_replay_ctr(wpa_s->wpa,
5221 					 data->driver_gtk_rekey.replay_ctr);
5222 		break;
5223 	case EVENT_SCHED_SCAN_STOPPED:
5224 		wpa_s->sched_scanning = 0;
5225 		resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
5226 		wpa_supplicant_notify_scanning(wpa_s, 0);
5227 
5228 		if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
5229 			break;
5230 
5231 		/*
5232 		 * If the driver stopped scanning without being requested to,
5233 		 * request a new scan to continue scanning for networks.
5234 		 */
5235 		if (!wpa_s->sched_scan_stop_req &&
5236 		    wpa_s->wpa_state == WPA_SCANNING) {
5237 			wpa_dbg(wpa_s, MSG_DEBUG,
5238 				"Restart scanning after unexpected sched_scan stop event");
5239 			wpa_supplicant_req_scan(wpa_s, 1, 0);
5240 			break;
5241 		}
5242 
5243 		wpa_s->sched_scan_stop_req = 0;
5244 
5245 		/*
5246 		 * Start a new sched scan to continue searching for more SSIDs
5247 		 * either if timed out or PNO schedule scan is pending.
5248 		 */
5249 		if (wpa_s->sched_scan_timed_out) {
5250 			wpa_supplicant_req_sched_scan(wpa_s);
5251 		} else if (wpa_s->pno_sched_pending) {
5252 			wpa_s->pno_sched_pending = 0;
5253 			wpas_start_pno(wpa_s);
5254 		} else if (resched) {
5255 			wpa_supplicant_req_scan(wpa_s, 0, 0);
5256 		}
5257 
5258 		break;
5259 	case EVENT_WPS_BUTTON_PUSHED:
5260 #ifdef CONFIG_WPS
5261 		wpas_wps_start_pbc(wpa_s, NULL, 0, 0);
5262 #endif /* CONFIG_WPS */
5263 		break;
5264 	case EVENT_AVOID_FREQUENCIES:
5265 		wpa_supplicant_notify_avoid_freq(wpa_s, data);
5266 		break;
5267 	case EVENT_CONNECT_FAILED_REASON:
5268 #ifdef CONFIG_AP
5269 		if (!wpa_s->ap_iface || !data)
5270 			break;
5271 		hostapd_event_connect_failed_reason(
5272 			wpa_s->ap_iface->bss[0],
5273 			data->connect_failed_reason.addr,
5274 			data->connect_failed_reason.code);
5275 #endif /* CONFIG_AP */
5276 		break;
5277 	case EVENT_NEW_PEER_CANDIDATE:
5278 #ifdef CONFIG_MESH
5279 		if (!wpa_s->ifmsh || !data)
5280 			break;
5281 		wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
5282 				     data->mesh_peer.ies,
5283 				     data->mesh_peer.ie_len);
5284 #endif /* CONFIG_MESH */
5285 		break;
5286 	case EVENT_SURVEY:
5287 #ifdef CONFIG_AP
5288 		if (!wpa_s->ap_iface)
5289 			break;
5290 		hostapd_event_get_survey(wpa_s->ap_iface,
5291 					 &data->survey_results);
5292 #endif /* CONFIG_AP */
5293 		break;
5294 	case EVENT_ACS_CHANNEL_SELECTED:
5295 #ifdef CONFIG_AP
5296 #ifdef CONFIG_ACS
5297 		if (!wpa_s->ap_iface)
5298 			break;
5299 		hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
5300 					     &data->acs_selected_channels);
5301 #endif /* CONFIG_ACS */
5302 #endif /* CONFIG_AP */
5303 		break;
5304 	case EVENT_P2P_LO_STOP:
5305 #ifdef CONFIG_P2P
5306 		wpa_s->p2p_lo_started = 0;
5307 		wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP
5308 			P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d",
5309 			data->p2p_lo_stop.reason_code);
5310 #endif /* CONFIG_P2P */
5311 		break;
5312 	case EVENT_BEACON_LOSS:
5313 		if (!wpa_s->current_bss || !wpa_s->current_ssid)
5314 			break;
5315 		wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_BEACON_LOSS);
5316 		bgscan_notify_beacon_loss(wpa_s);
5317 		break;
5318 	case EVENT_EXTERNAL_AUTH:
5319 #ifdef CONFIG_SAE
5320 		if (!wpa_s->current_ssid) {
5321 			wpa_printf(MSG_DEBUG, "SAE: current_ssid is NULL");
5322 			break;
5323 		}
5324 		sme_external_auth_trigger(wpa_s, data);
5325 #endif /* CONFIG_SAE */
5326 		break;
5327 	case EVENT_PORT_AUTHORIZED:
5328 		wpa_supplicant_event_port_authorized(wpa_s);
5329 		break;
5330 	case EVENT_STATION_OPMODE_CHANGED:
5331 #ifdef CONFIG_AP
5332 		if (!wpa_s->ap_iface || !data)
5333 			break;
5334 
5335 		hostapd_event_sta_opmode_changed(wpa_s->ap_iface->bss[0],
5336 						 data->sta_opmode.addr,
5337 						 data->sta_opmode.smps_mode,
5338 						 data->sta_opmode.chan_width,
5339 						 data->sta_opmode.rx_nss);
5340 #endif /* CONFIG_AP */
5341 		break;
5342 	case EVENT_UNPROT_BEACON:
5343 		wpas_event_unprot_beacon(wpa_s, &data->unprot_beacon);
5344 		break;
5345 	default:
5346 		wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
5347 		break;
5348 	}
5349 }
5350 
5351 
wpa_supplicant_event_global(void * ctx,enum wpa_event_type event,union wpa_event_data * data)5352 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
5353 				 union wpa_event_data *data)
5354 {
5355 	struct wpa_supplicant *wpa_s;
5356 
5357 	if (event != EVENT_INTERFACE_STATUS)
5358 		return;
5359 
5360 	wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
5361 	if (wpa_s && wpa_s->driver->get_ifindex) {
5362 		unsigned int ifindex;
5363 
5364 		ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
5365 		if (ifindex != data->interface_status.ifindex) {
5366 			wpa_dbg(wpa_s, MSG_DEBUG,
5367 				"interface status ifindex %d mismatch (%d)",
5368 				ifindex, data->interface_status.ifindex);
5369 			return;
5370 		}
5371 	}
5372 #ifdef CONFIG_MATCH_IFACE
5373 	else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
5374 		struct wpa_interface *wpa_i;
5375 
5376 		wpa_i = wpa_supplicant_match_iface(
5377 			ctx, data->interface_status.ifname);
5378 		if (!wpa_i)
5379 			return;
5380 		wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
5381 		os_free(wpa_i);
5382 		if (wpa_s)
5383 			wpa_s->matched = 1;
5384 	}
5385 #endif /* CONFIG_MATCH_IFACE */
5386 
5387 	if (wpa_s)
5388 		wpa_supplicant_event(wpa_s, event, data);
5389 }
5390