xref: /freebsd/contrib/wpa/wpa_supplicant/events.c (revision 71e72c9e91c4b8007a4292e09669e8b549c29e97)
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 "utils/crc32.h"
13 #include "eapol_supp/eapol_supp_sm.h"
14 #include "rsn_supp/wpa.h"
15 #include "eloop.h"
16 #include "config.h"
17 #include "l2_packet/l2_packet.h"
18 #include "wpa_supplicant_i.h"
19 #include "driver_i.h"
20 #include "pcsc_funcs.h"
21 #include "rsn_supp/preauth.h"
22 #include "rsn_supp/pmksa_cache.h"
23 #include "common/wpa_ctrl.h"
24 #include "eap_peer/eap.h"
25 #include "ap/hostapd.h"
26 #include "ap/sta_info.h"
27 #include "p2p/p2p.h"
28 #include "fst/fst.h"
29 #include "wnm_sta.h"
30 #include "notify.h"
31 #include "common/ieee802_11_defs.h"
32 #include "common/ieee802_11_common.h"
33 #include "common/gas_server.h"
34 #include "common/dpp.h"
35 #include "common/ptksa_cache.h"
36 #include "crypto/random.h"
37 #include "bssid_ignore.h"
38 #include "wpas_glue.h"
39 #include "wps_supplicant.h"
40 #include "ibss_rsn.h"
41 #include "sme.h"
42 #include "gas_query.h"
43 #include "p2p_supplicant.h"
44 #include "bgscan.h"
45 #include "autoscan.h"
46 #include "ap.h"
47 #include "bss.h"
48 #include "scan.h"
49 #include "offchannel.h"
50 #include "interworking.h"
51 #include "mesh.h"
52 #include "mesh_mpm.h"
53 #include "wmm_ac.h"
54 #include "dpp_supplicant.h"
55 #include "pr_supplicant.h"
56 #include "nan_supplicant.h"
57 
58 
59 #define MAX_OWE_TRANSITION_BSS_SELECT_COUNT 5
60 
61 
62 #ifndef CONFIG_NO_SCAN_PROCESSING
63 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
64 					      int new_scan, int own_request,
65 					      bool trigger_6ghz_scan,
66 					      union wpa_event_data *data);
67 #endif /* CONFIG_NO_SCAN_PROCESSING */
68 
69 
wpas_temp_disabled(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)70 int wpas_temp_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
71 {
72 	struct os_reltime now;
73 
74 	if (ssid == NULL || ssid->disabled_until.sec == 0)
75 		return 0;
76 
77 	os_get_reltime(&now);
78 	if (ssid->disabled_until.sec > now.sec)
79 		return ssid->disabled_until.sec - now.sec;
80 
81 	wpas_clear_temp_disabled(wpa_s, ssid, 0);
82 
83 	return 0;
84 }
85 
86 
87 #ifndef CONFIG_NO_SCAN_PROCESSING
88 /**
89  * wpas_reenabled_network_time - Time until first network is re-enabled
90  * @wpa_s: Pointer to wpa_supplicant data
91  * Returns: If all enabled networks are temporarily disabled, returns the time
92  *	(in sec) until the first network is re-enabled. Otherwise returns 0.
93  *
94  * This function is used in case all enabled networks are temporarily disabled,
95  * in which case it returns the time (in sec) that the first network will be
96  * re-enabled. The function assumes that at least one network is enabled.
97  */
wpas_reenabled_network_time(struct wpa_supplicant * wpa_s)98 static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
99 {
100 	struct wpa_ssid *ssid;
101 	int disabled_for, res = 0;
102 
103 #ifdef CONFIG_INTERWORKING
104 	if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
105 	    wpa_s->conf->cred)
106 		return 0;
107 #endif /* CONFIG_INTERWORKING */
108 
109 	for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
110 		if (ssid->disabled)
111 			continue;
112 
113 		disabled_for = wpas_temp_disabled(wpa_s, ssid);
114 		if (!disabled_for)
115 			return 0;
116 
117 		if (!res || disabled_for < res)
118 			res = disabled_for;
119 	}
120 
121 	return res;
122 }
123 #endif /* CONFIG_NO_SCAN_PROCESSING */
124 
125 
wpas_network_reenabled(void * eloop_ctx,void * timeout_ctx)126 void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
127 {
128 	struct wpa_supplicant *wpa_s = eloop_ctx;
129 
130 	if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
131 		return;
132 
133 	wpa_dbg(wpa_s, MSG_DEBUG,
134 		"Try to associate due to network getting re-enabled");
135 	if (wpa_supplicant_fast_associate(wpa_s) != 1) {
136 		wpa_supplicant_cancel_sched_scan(wpa_s);
137 		wpa_supplicant_req_scan(wpa_s, 0, 0);
138 	}
139 }
140 
141 
__wpa_supplicant_get_new_bss(struct wpa_supplicant * wpa_s,const u8 * bssid,const u8 * ssid,size_t ssid_len)142 static struct wpa_bss * __wpa_supplicant_get_new_bss(
143 	struct wpa_supplicant *wpa_s, const u8 *bssid, const u8 *ssid,
144 	size_t ssid_len)
145 {
146 	if (ssid && ssid_len > 0)
147 		return wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
148 	else
149 		return wpa_bss_get_bssid(wpa_s, bssid);
150 }
151 
152 
_wpa_supplicant_get_new_bss(struct wpa_supplicant * wpa_s,const u8 * bssid,const u8 * ssid,size_t ssid_len,bool try_update_scan_results)153 static struct wpa_bss * _wpa_supplicant_get_new_bss(
154 	struct wpa_supplicant *wpa_s, const u8 *bssid, const u8 *ssid,
155 	size_t ssid_len, bool try_update_scan_results)
156 {
157 	struct wpa_bss *bss = __wpa_supplicant_get_new_bss(wpa_s, bssid, ssid,
158 							   ssid_len);
159 
160 	if (bss || !try_update_scan_results)
161 		return bss;
162 
163 	wpa_supplicant_update_scan_results(wpa_s, bssid);
164 
165 	return __wpa_supplicant_get_new_bss(wpa_s, bssid, ssid, ssid_len);
166 }
167 
168 
wpa_supplicant_get_new_bss(struct wpa_supplicant * wpa_s,const u8 * bssid)169 static struct wpa_bss * wpa_supplicant_get_new_bss(
170 	struct wpa_supplicant *wpa_s, const u8 *bssid)
171 {
172 	struct wpa_bss *bss = NULL;
173 	struct wpa_ssid *ssid = wpa_s->current_ssid;
174 	u8 drv_ssid[SSID_MAX_LEN];
175 	int res;
176 	bool try_update_scan_results = true;
177 
178 	res = wpa_drv_get_ssid(wpa_s, drv_ssid);
179 	if (res > 0) {
180 		bss = _wpa_supplicant_get_new_bss(wpa_s, bssid, drv_ssid, res,
181 						  try_update_scan_results);
182 		try_update_scan_results = false;
183 	}
184 	if (!bss && ssid && ssid->ssid_len > 0) {
185 		bss = _wpa_supplicant_get_new_bss(wpa_s, bssid, ssid->ssid,
186 						  ssid->ssid_len,
187 						  try_update_scan_results);
188 		try_update_scan_results = false;
189 	}
190 	if (!bss)
191 		bss = _wpa_supplicant_get_new_bss(wpa_s, bssid, NULL, 0,
192 						  try_update_scan_results);
193 
194 	return bss;
195 }
196 
197 
198 static struct wpa_bss *
wpa_supplicant_update_current_bss(struct wpa_supplicant * wpa_s,const u8 * bssid)199 wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s, const u8 *bssid)
200 {
201 	struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
202 
203 	if (bss)
204 		wpa_s->current_bss = bss;
205 
206 	return bss;
207 }
208 
209 
wpa_supplicant_update_link_bss(struct wpa_supplicant * wpa_s,u8 link_id,const u8 * bssid)210 static void wpa_supplicant_update_link_bss(struct wpa_supplicant *wpa_s,
211 					   u8 link_id, const u8 *bssid)
212 {
213 	struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
214 
215 	if (bss)
216 		wpa_s->links[link_id].bss = bss;
217 }
218 
219 
wpa_supplicant_select_config(struct wpa_supplicant * wpa_s,union wpa_event_data * data)220 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s,
221 					union wpa_event_data *data)
222 {
223 	struct wpa_ssid *ssid, *old_ssid;
224 	struct wpa_bss *bss;
225 	u8 drv_ssid[SSID_MAX_LEN];
226 	size_t drv_ssid_len;
227 	int res;
228 
229 	if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
230 		wpa_supplicant_update_current_bss(wpa_s, wpa_s->bssid);
231 
232 		if (wpa_s->current_ssid->ssid_len == 0)
233 			return 0; /* current profile still in use */
234 		res = wpa_drv_get_ssid(wpa_s, drv_ssid);
235 		if (res < 0) {
236 			wpa_msg(wpa_s, MSG_INFO,
237 				"Failed to read SSID from driver");
238 			return 0; /* try to use current profile */
239 		}
240 		drv_ssid_len = res;
241 
242 		if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
243 		    os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
244 			      drv_ssid_len) == 0)
245 			return 0; /* current profile still in use */
246 
247 #ifdef CONFIG_OWE
248 		if ((wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
249 		    wpa_s->current_bss &&
250 		    (wpa_s->current_bss->flags & WPA_BSS_OWE_TRANSITION) &&
251 		    drv_ssid_len == wpa_s->current_bss->ssid_len &&
252 		    os_memcmp(drv_ssid, wpa_s->current_bss->ssid,
253 			      drv_ssid_len) == 0)
254 			return 0; /* current profile still in use */
255 #endif /* CONFIG_OWE */
256 
257 		wpa_msg(wpa_s, MSG_DEBUG,
258 			"Driver-initiated BSS selection changed the SSID to %s",
259 			wpa_ssid_txt(drv_ssid, drv_ssid_len));
260 		/* continue selecting a new network profile */
261 	}
262 
263 	wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
264 		"information");
265 	ssid = wpa_supplicant_get_ssid(wpa_s);
266 	if (ssid == NULL) {
267 		wpa_msg(wpa_s, MSG_INFO,
268 			"No network configuration found for the current AP");
269 		return -1;
270 	}
271 
272 	if (wpas_network_disabled(wpa_s, ssid)) {
273 		wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
274 		return -1;
275 	}
276 
277 	if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
278 	    disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
279 		wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
280 		return -1;
281 	}
282 
283 	res = wpas_temp_disabled(wpa_s, ssid);
284 	if (res > 0) {
285 		wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
286 			"disabled for %d second(s)", res);
287 		return -1;
288 	}
289 
290 	wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
291 		"current AP");
292 	bss = wpa_supplicant_update_current_bss(wpa_s, wpa_s->bssid);
293 	if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
294 		u8 wpa_ie[80];
295 		size_t wpa_ie_len = sizeof(wpa_ie);
296 		bool skip_default_rsne;
297 
298 		/* Do not override RSNE/RSNXE with the default values if the
299 		 * driver indicated the actual values used in the
300 		 * (Re)Association Request frame. */
301 		skip_default_rsne = data && data->assoc_info.req_ies;
302 		if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
303 					      wpa_ie, &wpa_ie_len,
304 					      skip_default_rsne) < 0)
305 			wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
306 	} else {
307 		wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
308 	}
309 
310 	if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
311 		eapol_sm_invalidate_cached_session(wpa_s->eapol);
312 	old_ssid = wpa_s->current_ssid;
313 	wpa_s->current_ssid = ssid;
314 
315 	wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
316 	wpa_supplicant_initiate_eapol(wpa_s);
317 	if (old_ssid != wpa_s->current_ssid)
318 		wpas_notify_network_changed(wpa_s);
319 
320 	return 0;
321 }
322 
323 
wpa_supplicant_stop_countermeasures(void * eloop_ctx,void * sock_ctx)324 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
325 {
326 	struct wpa_supplicant *wpa_s = eloop_ctx;
327 
328 	if (wpa_s->countermeasures) {
329 		wpa_s->countermeasures = 0;
330 		wpa_drv_set_countermeasures(wpa_s, 0);
331 		wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
332 
333 		/*
334 		 * It is possible that the device is sched scanning, which means
335 		 * that a connection attempt will be done only when we receive
336 		 * scan results. However, in this case, it would be preferable
337 		 * to scan and connect immediately, so cancel the sched_scan and
338 		 * issue a regular scan flow.
339 		 */
340 		wpa_supplicant_cancel_sched_scan(wpa_s);
341 		wpa_supplicant_req_scan(wpa_s, 0, 0);
342 	}
343 }
344 
345 
wpas_reset_mlo_info(struct wpa_supplicant * wpa_s)346 void wpas_reset_mlo_info(struct wpa_supplicant *wpa_s)
347 {
348 	int i;
349 
350 	if (!wpa_s->valid_links)
351 		return;
352 
353 	wpa_s->valid_links = 0;
354 	wpa_s->mlo_assoc_link_id = 0;
355 	os_memset(wpa_s->ap_mld_addr, 0, ETH_ALEN);
356 	for (i = 0; i < MAX_NUM_MLD_LINKS; i++)
357 		wpabuf_free(wpa_s->links[i].ies);
358 	os_memset(wpa_s->links, 0, sizeof(wpa_s->links));
359 }
360 
361 
wpa_supplicant_mark_disassoc(struct wpa_supplicant * wpa_s)362 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
363 {
364 	int bssid_changed;
365 
366 	wnm_bss_keep_alive_deinit(wpa_s);
367 
368 #ifdef CONFIG_IBSS_RSN
369 	ibss_rsn_deinit(wpa_s->ibss_rsn);
370 	wpa_s->ibss_rsn = NULL;
371 #endif /* CONFIG_IBSS_RSN */
372 
373 #ifdef CONFIG_AP
374 	wpa_supplicant_ap_deinit(wpa_s);
375 #endif /* CONFIG_AP */
376 
377 #ifdef CONFIG_HS20
378 	/* Clear possibly configured frame filters */
379 	wpa_drv_configure_frame_filters(wpa_s, 0);
380 #endif /* CONFIG_HS20 */
381 
382 	if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
383 		return;
384 
385 	if (os_reltime_initialized(&wpa_s->session_start)) {
386 		os_reltime_age(&wpa_s->session_start, &wpa_s->session_length);
387 		wpa_s->session_start.sec = 0;
388 		wpa_s->session_start.usec = 0;
389 		wpas_notify_session_length(wpa_s);
390 	}
391 
392 	wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
393 
394 #ifdef CONFIG_ENC_ASSOC
395 	/* Clear configured keys and PTKSA */
396 	if (wpa_s->ptksa &&
397 	    ptksa_cache_get(wpa_s->ptksa, wpa_s->bssid, WPA_CIPHER_NONE)) {
398 		wpa_clear_keys(wpa_s, wpa_s->bssid);
399 		ptksa_cache_flush(wpa_s->ptksa, wpa_s->bssid, WPA_CIPHER_NONE);
400 	}
401 #endif /* CONFIG_ENC_ASSOC */
402 
403 	bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
404 	os_memset(wpa_s->bssid, 0, ETH_ALEN);
405 	os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
406 	sme_clear_on_disassoc(wpa_s);
407 	wpa_s->current_bss = NULL;
408 	wpa_s->assoc_freq = 0;
409 	wpa_s->assisted_dfs = false;
410 
411 	if (bssid_changed)
412 		wpas_notify_bssid_changed(wpa_s);
413 
414 	eapol_sm_notify_portEnabled(wpa_s->eapol, false);
415 	eapol_sm_notify_portValid(wpa_s->eapol, false);
416 	if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
417 	    wpa_s->key_mgmt == WPA_KEY_MGMT_OWE ||
418 	    wpa_s->key_mgmt == WPA_KEY_MGMT_DPP || wpa_s->drv_authorized_port)
419 		eapol_sm_notify_eap_success(wpa_s->eapol, false);
420 	wpa_s->drv_authorized_port = 0;
421 	wpa_s->ap_ies_from_associnfo = 0;
422 	wpa_s->current_ssid = NULL;
423 	eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
424 	wpa_s->key_mgmt = 0;
425 	wpa_s->allowed_key_mgmts = 0;
426 
427 #ifndef CONFIG_NO_RRM
428 	wpas_rrm_reset(wpa_s);
429 #endif /* CONFIG_NO_RRM */
430 	wpa_s->wnmsleep_used = 0;
431 #ifdef CONFIG_WNM
432 	wpa_s->wnm_mode = 0;
433 #endif /* CONFIG_WNM */
434 	wnm_clear_coloc_intf_reporting(wpa_s);
435 	wpa_s->disable_mbo_oce = 0;
436 
437 #ifdef CONFIG_TESTING_OPTIONS
438 	wpa_s->last_tk_alg = WPA_ALG_NONE;
439 	os_memset(wpa_s->last_tk, 0, sizeof(wpa_s->last_tk));
440 #endif /* CONFIG_TESTING_OPTIONS */
441 	wpa_s->ieee80211ac = 0;
442 
443 	if (wpa_s->enabled_4addr_mode && wpa_drv_set_4addr_mode(wpa_s, 0) == 0)
444 		wpa_s->enabled_4addr_mode = 0;
445 
446 	wpa_s->wps_scan_done = false;
447 	wpas_reset_mlo_info(wpa_s);
448 #ifndef CONFIG_NO_ROBUST_AV
449 	wpas_scs_deinit(wpa_s);
450 #endif /* CONFIG_NO_ROBUST_AV */
451 
452 #ifdef CONFIG_SME
453 	wpa_s->sme.bss_max_idle_period = 0;
454 #endif /* CONFIG_SME */
455 
456 	wpa_s->ssid_verified = false;
457 	wpa_s->bigtk_set = false;
458 
459 	wpabuf_free(wpa_s->pending_eapol_rx);
460 	wpa_s->pending_eapol_rx = NULL;
461 	wpa_s->ext_auth_to_same_bss = false;
462 }
463 
464 
wpa_find_assoc_pmkid(struct wpa_supplicant * wpa_s)465 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
466 {
467 	struct wpa_ie_data ie;
468 	int pmksa_set = -1;
469 	size_t i;
470 	struct rsn_pmksa_cache_entry *cur_pmksa;
471 
472 	/* Start with assumption of no PMKSA cache entry match for cases other
473 	 * than SAE. In particular, this is needed to generate the PMKSA cache
474 	 * entries for Suite B cases with driver-based roaming indication. */
475 	cur_pmksa = pmksa_cache_get_current(wpa_s->wpa);
476 	if (cur_pmksa && !wpa_key_mgmt_sae(cur_pmksa->akmp))
477 		pmksa_cache_clear_current(wpa_s->wpa);
478 
479 	if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
480 	    ie.pmkid == NULL)
481 		return;
482 
483 	for (i = 0; i < ie.num_pmkid; i++) {
484 		pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
485 						    ie.pmkid + i * PMKID_LEN,
486 						    NULL, NULL, 0, NULL, 0,
487 						    true);
488 		if (pmksa_set == 0) {
489 			eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
490 			wpa_sm_set_pmk_from_pmksa(wpa_s->wpa);
491 			break;
492 		}
493 	}
494 
495 	wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
496 		"PMKSA cache", pmksa_set == 0 ? "" : "not ");
497 }
498 
499 
wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant * wpa_s,union wpa_event_data * data)500 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
501 						 union wpa_event_data *data)
502 {
503 	if (data == NULL) {
504 		wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
505 			"event");
506 		return;
507 	}
508 	wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
509 		" index=%d preauth=%d",
510 		MAC2STR(data->pmkid_candidate.bssid),
511 		data->pmkid_candidate.index,
512 		data->pmkid_candidate.preauth);
513 
514 	pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
515 			    data->pmkid_candidate.index,
516 			    data->pmkid_candidate.preauth);
517 }
518 
519 
wpa_supplicant_dynamic_keys(struct wpa_supplicant * wpa_s)520 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
521 {
522 	if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
523 	    wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
524 		return 0;
525 
526 #ifdef IEEE8021X_EAPOL
527 	if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
528 	    wpa_s->current_ssid &&
529 	    !(wpa_s->current_ssid->eapol_flags &
530 	      (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
531 	       EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
532 		/* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
533 		 * plaintext or static WEP keys). */
534 		return 0;
535 	}
536 #endif /* IEEE8021X_EAPOL */
537 
538 	return 1;
539 }
540 
541 
542 /**
543  * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
544  * @wpa_s: pointer to wpa_supplicant data
545  * @ssid: Configuration data for the network
546  * Returns: 0 on success, -1 on failure
547  *
548  * This function is called when starting authentication with a network that is
549  * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
550  */
wpa_supplicant_scard_init(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)551 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
552 			      struct wpa_ssid *ssid)
553 {
554 #ifdef IEEE8021X_EAPOL
555 #ifdef PCSC_FUNCS
556 	int aka = 0, sim = 0;
557 
558 	if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
559 	    wpa_s->scard != NULL || wpa_s->conf->external_sim)
560 		return 0;
561 
562 	if (ssid == NULL || ssid->eap.eap_methods == NULL) {
563 		sim = 1;
564 		aka = 1;
565 	} else {
566 		struct eap_method_type *eap = ssid->eap.eap_methods;
567 		while (eap->vendor != EAP_VENDOR_IETF ||
568 		       eap->method != EAP_TYPE_NONE) {
569 			if (eap->vendor == EAP_VENDOR_IETF) {
570 				if (eap->method == EAP_TYPE_SIM)
571 					sim = 1;
572 				else if (eap->method == EAP_TYPE_AKA ||
573 					 eap->method == EAP_TYPE_AKA_PRIME)
574 					aka = 1;
575 			}
576 			eap++;
577 		}
578 	}
579 
580 	if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
581 		sim = 0;
582 	if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
583 	    eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
584 	    NULL)
585 		aka = 0;
586 
587 	if (!sim && !aka) {
588 		wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
589 			"use SIM, but neither EAP-SIM nor EAP-AKA are "
590 			"enabled");
591 		return 0;
592 	}
593 
594 	wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
595 		"(sim=%d aka=%d) - initialize PCSC", sim, aka);
596 
597 	wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
598 	if (wpa_s->scard == NULL) {
599 		wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
600 			"(pcsc-lite)");
601 		return -1;
602 	}
603 	wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
604 	eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
605 #endif /* PCSC_FUNCS */
606 #endif /* IEEE8021X_EAPOL */
607 
608 	return 0;
609 }
610 
611 
612 #ifndef CONFIG_NO_SCAN_PROCESSING
613 
614 #ifdef CONFIG_WEP
has_wep_key(struct wpa_ssid * ssid)615 static int has_wep_key(struct wpa_ssid *ssid)
616 {
617 	int i;
618 
619 	for (i = 0; i < NUM_WEP_KEYS; i++) {
620 		if (ssid->wep_key_len[i])
621 			return 1;
622 	}
623 
624 	return 0;
625 }
626 #endif /* CONFIG_WEP */
627 
628 
wpa_supplicant_match_privacy(struct wpa_bss * bss,struct wpa_ssid * ssid)629 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
630 					struct wpa_ssid *ssid)
631 {
632 	int privacy = 0;
633 
634 	if (ssid->mixed_cell)
635 		return 1;
636 
637 #ifdef CONFIG_WPS
638 	if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
639 		return 1;
640 #endif /* CONFIG_WPS */
641 
642 #ifdef CONFIG_OWE
643 	if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only)
644 		return 1;
645 #endif /* CONFIG_OWE */
646 
647 #ifdef CONFIG_WEP
648 	if (has_wep_key(ssid))
649 		privacy = 1;
650 #endif /* CONFIG_WEP */
651 
652 #ifdef IEEE8021X_EAPOL
653 	if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
654 	    ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
655 				 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
656 		privacy = 1;
657 #endif /* IEEE8021X_EAPOL */
658 
659 	if (wpa_key_mgmt_wpa(ssid->key_mgmt))
660 		privacy = 1;
661 
662 	if (bss->caps & IEEE80211_CAP_PRIVACY)
663 		return privacy;
664 	return !privacy;
665 }
666 
667 
wpa_supplicant_ssid_bss_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss,int debug_print)668 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
669 					 struct wpa_ssid *ssid,
670 					 struct wpa_bss *bss, int debug_print)
671 {
672 	struct wpa_ie_data ie;
673 	int proto_match = 0;
674 	const u8 *rsn_ie, *wpa_ie;
675 	int ret;
676 #ifdef CONFIG_WEP
677 	int wep_ok;
678 #endif /* CONFIG_WEP */
679 	bool is_6ghz_bss = is_6ghz_freq(bss->freq);
680 
681 	ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
682 	if (ret >= 0)
683 		return ret;
684 
685 #ifdef CONFIG_WEP
686 	/* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
687 	wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
688 		(((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
689 		  ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
690 		 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
691 #endif /* CONFIG_WEP */
692 
693 	rsn_ie = wpa_bss_get_rsne(wpa_s, bss, ssid, false);
694 	if (is_6ghz_bss && !rsn_ie) {
695 		if (debug_print)
696 			wpa_dbg(wpa_s, MSG_DEBUG,
697 				"   skip - 6 GHz BSS without RSNE");
698 		return 0;
699 	}
700 
701 	while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
702 		proto_match++;
703 
704 		if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
705 			if (debug_print)
706 				wpa_dbg(wpa_s, MSG_DEBUG,
707 					"   skip RSN IE - parse failed");
708 			break;
709 		}
710 		if (!ie.has_pairwise)
711 			ie.pairwise_cipher = wpa_default_rsn_cipher(bss->freq);
712 		if (!ie.has_group)
713 			ie.group_cipher = wpa_default_rsn_cipher(bss->freq);
714 
715 		if (is_6ghz_bss || !is_zero_ether_addr(bss->mld_addr)) {
716 			/* WEP and TKIP are not allowed on 6 GHz/MLD */
717 			ie.pairwise_cipher &= ~(WPA_CIPHER_WEP40 |
718 						WPA_CIPHER_WEP104 |
719 						WPA_CIPHER_TKIP);
720 			ie.group_cipher &= ~(WPA_CIPHER_WEP40 |
721 					     WPA_CIPHER_WEP104 |
722 					     WPA_CIPHER_TKIP);
723 		}
724 
725 #ifdef CONFIG_WEP
726 		if (wep_ok &&
727 		    (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
728 		{
729 			if (debug_print)
730 				wpa_dbg(wpa_s, MSG_DEBUG,
731 					"   selected based on TSN in RSN IE");
732 			return 1;
733 		}
734 #endif /* CONFIG_WEP */
735 
736 		if (!(ie.proto & ssid->proto)) {
737 			if (debug_print)
738 				wpa_dbg(wpa_s, MSG_DEBUG,
739 					"   skip RSN IE - proto mismatch");
740 			break;
741 		}
742 
743 		if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
744 			if (debug_print)
745 				wpa_dbg(wpa_s, MSG_DEBUG,
746 					"   skip RSN IE - PTK cipher mismatch");
747 			break;
748 		}
749 
750 		if (!(ie.group_cipher & ssid->group_cipher)) {
751 			if (debug_print)
752 				wpa_dbg(wpa_s, MSG_DEBUG,
753 					"   skip RSN IE - GTK cipher mismatch");
754 			break;
755 		}
756 
757 		if (ssid->group_mgmt_cipher &&
758 		    !(ie.mgmt_group_cipher & ssid->group_mgmt_cipher)) {
759 			if (debug_print)
760 				wpa_dbg(wpa_s, MSG_DEBUG,
761 					"   skip RSN IE - group mgmt cipher mismatch");
762 			break;
763 		}
764 
765 		if (is_6ghz_bss) {
766 			/* MFPC must be supported on 6 GHz */
767 			if (!(ie.capabilities & WPA_CAPABILITY_MFPC)) {
768 				if (debug_print)
769 					wpa_dbg(wpa_s, MSG_DEBUG,
770 						"   skip RSNE - 6 GHz without MFPC");
771 				break;
772 			}
773 
774 			/* WPA PSK is not allowed on the 6 GHz band */
775 			ie.key_mgmt &= ~(WPA_KEY_MGMT_PSK |
776 					 WPA_KEY_MGMT_FT_PSK |
777 					 WPA_KEY_MGMT_PSK_SHA256);
778 		}
779 
780 		if (!(ie.key_mgmt & ssid->key_mgmt)) {
781 			if (debug_print)
782 				wpa_dbg(wpa_s, MSG_DEBUG,
783 					"   skip RSN IE - key mgmt mismatch");
784 			break;
785 		}
786 
787 		if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
788 		    wpas_get_ssid_pmf(wpa_s, ssid) ==
789 		    MGMT_FRAME_PROTECTION_REQUIRED) {
790 			if (debug_print)
791 				wpa_dbg(wpa_s, MSG_DEBUG,
792 					"   skip RSN IE - no mgmt frame protection");
793 			break;
794 		}
795 		if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
796 		    wpas_get_ssid_pmf(wpa_s, ssid) ==
797 		    NO_MGMT_FRAME_PROTECTION) {
798 			if (debug_print)
799 				wpa_dbg(wpa_s, MSG_DEBUG,
800 					"   skip RSN IE - no mgmt frame protection enabled but AP requires it");
801 			break;
802 		}
803 
804 		if (debug_print)
805 			wpa_dbg(wpa_s, MSG_DEBUG,
806 				"   selected based on RSN IE");
807 		return 1;
808 	}
809 
810 	if (is_6ghz_bss) {
811 		if (debug_print)
812 			wpa_dbg(wpa_s, MSG_DEBUG,
813 				"   skip - 6 GHz BSS without matching RSNE");
814 		return 0;
815 	}
816 
817 	wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
818 
819 	if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED &&
820 	    (!(ssid->key_mgmt & WPA_KEY_MGMT_OWE) || ssid->owe_only)) {
821 #ifdef CONFIG_OWE
822 		if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && ssid->owe_only &&
823 		    !wpa_ie && !rsn_ie &&
824 		    wpa_s->owe_transition_select &&
825 		    wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE) &&
826 		    ssid->owe_transition_bss_select_count + 1 <=
827 		    MAX_OWE_TRANSITION_BSS_SELECT_COUNT) {
828 			ssid->owe_transition_bss_select_count++;
829 			if (debug_print)
830 				wpa_dbg(wpa_s, MSG_DEBUG,
831 					"   skip OWE open BSS (selection count %d does not exceed %d)",
832 					ssid->owe_transition_bss_select_count,
833 					MAX_OWE_TRANSITION_BSS_SELECT_COUNT);
834 			wpa_s->owe_transition_search = 1;
835 			return 0;
836 		}
837 #endif /* CONFIG_OWE */
838 		if (debug_print)
839 			wpa_dbg(wpa_s, MSG_DEBUG,
840 				"   skip - MFP Required but network not MFP Capable");
841 		return 0;
842 	}
843 
844 	while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
845 		proto_match++;
846 
847 		if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
848 			if (debug_print)
849 				wpa_dbg(wpa_s, MSG_DEBUG,
850 					"   skip WPA IE - parse failed");
851 			break;
852 		}
853 
854 #ifdef CONFIG_WEP
855 		if (wep_ok &&
856 		    (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
857 		{
858 			if (debug_print)
859 				wpa_dbg(wpa_s, MSG_DEBUG,
860 					"   selected based on TSN in WPA IE");
861 			return 1;
862 		}
863 #endif /* CONFIG_WEP */
864 
865 		if (!(ie.proto & ssid->proto)) {
866 			if (debug_print)
867 				wpa_dbg(wpa_s, MSG_DEBUG,
868 					"   skip WPA IE - proto mismatch");
869 			break;
870 		}
871 
872 		if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
873 			if (debug_print)
874 				wpa_dbg(wpa_s, MSG_DEBUG,
875 					"   skip WPA IE - PTK cipher mismatch");
876 			break;
877 		}
878 
879 		if (!(ie.group_cipher & ssid->group_cipher)) {
880 			if (debug_print)
881 				wpa_dbg(wpa_s, MSG_DEBUG,
882 					"   skip WPA IE - GTK cipher mismatch");
883 			break;
884 		}
885 
886 		if (!(ie.key_mgmt & ssid->key_mgmt)) {
887 			if (debug_print)
888 				wpa_dbg(wpa_s, MSG_DEBUG,
889 					"   skip WPA IE - key mgmt mismatch");
890 			break;
891 		}
892 
893 		if (debug_print)
894 			wpa_dbg(wpa_s, MSG_DEBUG,
895 				"   selected based on WPA IE");
896 		return 1;
897 	}
898 
899 	if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
900 	    !rsn_ie) {
901 		if (debug_print)
902 			wpa_dbg(wpa_s, MSG_DEBUG,
903 				"   allow for non-WPA IEEE 802.1X");
904 		return 1;
905 	}
906 
907 #ifdef CONFIG_OWE
908 	if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only &&
909 	    !wpa_ie && !rsn_ie) {
910 		if (wpa_s->owe_transition_select &&
911 		    wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE) &&
912 		    ssid->owe_transition_bss_select_count + 1 <=
913 		    MAX_OWE_TRANSITION_BSS_SELECT_COUNT) {
914 			ssid->owe_transition_bss_select_count++;
915 			if (debug_print)
916 				wpa_dbg(wpa_s, MSG_DEBUG,
917 					"   skip OWE transition BSS (selection count %d does not exceed %d)",
918 					ssid->owe_transition_bss_select_count,
919 					MAX_OWE_TRANSITION_BSS_SELECT_COUNT);
920 			wpa_s->owe_transition_search = 1;
921 			return 0;
922 		}
923 		if (debug_print)
924 			wpa_dbg(wpa_s, MSG_DEBUG,
925 				"   allow in OWE transition mode");
926 		return 1;
927 	}
928 #endif /* CONFIG_OWE */
929 
930 	if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
931 	    wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
932 		if (debug_print)
933 			wpa_dbg(wpa_s, MSG_DEBUG,
934 				"   skip - no WPA/RSN proto match");
935 		return 0;
936 	}
937 
938 	if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
939 		if (debug_print)
940 			wpa_dbg(wpa_s, MSG_DEBUG, "   allow in non-WPA/WPA2");
941 		return 1;
942 	}
943 
944 	if (debug_print)
945 		wpa_dbg(wpa_s, MSG_DEBUG,
946 			"   reject due to mismatch with WPA/WPA2");
947 
948 	return 0;
949 }
950 
951 
freq_allowed(int * freqs,int freq)952 static int freq_allowed(int *freqs, int freq)
953 {
954 	int i;
955 
956 	if (freqs == NULL)
957 		return 1;
958 
959 	for (i = 0; freqs[i]; i++)
960 		if (freqs[i] == freq)
961 			return 1;
962 	return 0;
963 }
964 
965 
rate_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss,int debug_print)966 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
967 		      struct wpa_bss *bss, int debug_print)
968 {
969 	const struct hostapd_hw_modes *mode = NULL, *modes;
970 	const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
971 	const u8 *rate_ie;
972 	int i, j, k;
973 
974 	if (bss->freq == 0)
975 		return 1; /* Cannot do matching without knowing band */
976 
977 	modes = wpa_s->hw.modes;
978 	if (modes == NULL) {
979 		/*
980 		 * The driver does not provide any additional information
981 		 * about the utilized hardware, so allow the connection attempt
982 		 * to continue.
983 		 */
984 		return 1;
985 	}
986 
987 	for (i = 0; i < wpa_s->hw.num_modes; i++) {
988 		for (j = 0; j < modes[i].num_channels; j++) {
989 			int freq = modes[i].channels[j].freq;
990 			if (freq == bss->freq) {
991 				if (mode &&
992 				    mode->mode == HOSTAPD_MODE_IEEE80211G)
993 					break; /* do not allow 802.11b replace
994 						* 802.11g */
995 				mode = &modes[i];
996 				break;
997 			}
998 		}
999 	}
1000 
1001 	if (mode == NULL)
1002 		return 0;
1003 
1004 	for (i = 0; i < (int) sizeof(scan_ie); i++) {
1005 		rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
1006 		if (rate_ie == NULL)
1007 			continue;
1008 
1009 		for (j = 2; j < rate_ie[1] + 2; j++) {
1010 			int flagged = !!(rate_ie[j] & 0x80);
1011 			int r = (rate_ie[j] & 0x7f) * 5;
1012 
1013 			/*
1014 			 * IEEE Std 802.11n-2009 7.3.2.2:
1015 			 * The new BSS Membership selector value is encoded
1016 			 * like a legacy basic rate, but it is not a rate and
1017 			 * only indicates if the BSS members are required to
1018 			 * support the mandatory features of Clause 20 [HT PHY]
1019 			 * in order to join the BSS.
1020 			 */
1021 			if (flagged && ((rate_ie[j] & 0x7f) ==
1022 					BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
1023 				if (!ht_supported(mode)) {
1024 					if (debug_print)
1025 						wpa_dbg(wpa_s, MSG_DEBUG,
1026 							"   hardware does not support HT PHY");
1027 					return 0;
1028 				}
1029 				continue;
1030 			}
1031 
1032 			/* There's also a VHT selector for 802.11ac */
1033 			if (flagged && ((rate_ie[j] & 0x7f) ==
1034 					BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
1035 				if (!vht_supported(mode)) {
1036 					if (debug_print)
1037 						wpa_dbg(wpa_s, MSG_DEBUG,
1038 							"   hardware does not support VHT PHY");
1039 					return 0;
1040 				}
1041 				continue;
1042 			}
1043 
1044 			if (flagged && ((rate_ie[j] & 0x7f) ==
1045 					BSS_MEMBERSHIP_SELECTOR_HE_PHY)) {
1046 				if (!he_supported(mode, IEEE80211_MODE_INFRA)) {
1047 					if (debug_print)
1048 						wpa_dbg(wpa_s, MSG_DEBUG,
1049 							"   hardware does not support HE PHY");
1050 					return 0;
1051 				}
1052 				continue;
1053 			}
1054 
1055 			if (flagged && ((rate_ie[j] & 0x7f) ==
1056 					BSS_MEMBERSHIP_SELECTOR_EHT_PHY)) {
1057 				if (!eht_supported(mode, IEEE80211_MODE_INFRA))
1058 				{
1059 					if (debug_print)
1060 						wpa_dbg(wpa_s, MSG_DEBUG,
1061 							"   hardware does not support EHT PHY");
1062 					return 0;
1063 				}
1064 				continue;
1065 			}
1066 
1067 #ifdef CONFIG_SAE
1068 			if (flagged && ((rate_ie[j] & 0x7f) ==
1069 					BSS_MEMBERSHIP_SELECTOR_SAE_H2E_ONLY)) {
1070 				if (wpas_get_ssid_sae_pwe(wpa_s, ssid) ==
1071 				    SAE_PWE_HUNT_AND_PECK &&
1072 				    !ssid->sae_password_id &&
1073 				    !is_6ghz_freq(bss->freq) &&
1074 				    wpa_key_mgmt_sae(ssid->key_mgmt)) {
1075 					if (debug_print)
1076 						wpa_dbg(wpa_s, MSG_DEBUG,
1077 							"   SAE H2E disabled");
1078 #ifdef CONFIG_TESTING_OPTIONS
1079 					if (wpa_s->ignore_sae_h2e_only) {
1080 						wpa_dbg(wpa_s, MSG_DEBUG,
1081 							"TESTING: Ignore SAE H2E requirement mismatch");
1082 						continue;
1083 					}
1084 #endif /* CONFIG_TESTING_OPTIONS */
1085 					return 0;
1086 				}
1087 				continue;
1088 			}
1089 #endif /* CONFIG_SAE */
1090 
1091 			if (!flagged)
1092 				continue;
1093 
1094 			/* check for legacy basic rates */
1095 			for (k = 0; k < mode->num_rates; k++) {
1096 				if (mode->rates[k] == r)
1097 					break;
1098 			}
1099 			if (k == mode->num_rates) {
1100 				/*
1101 				 * IEEE Std 802.11-2007 7.3.2.2 demands that in
1102 				 * order to join a BSS all required rates
1103 				 * have to be supported by the hardware.
1104 				 */
1105 				if (debug_print)
1106 					wpa_dbg(wpa_s, MSG_DEBUG,
1107 						"   hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
1108 						r / 10, r % 10,
1109 						bss->freq, mode->mode, mode->num_rates);
1110 				return 0;
1111 			}
1112 		}
1113 	}
1114 
1115 	return 1;
1116 }
1117 
1118 
1119 /*
1120  * Test whether BSS is in an ESS.
1121  * This is done differently in DMG (60 GHz) and non-DMG bands
1122  */
bss_is_ess(struct wpa_bss * bss)1123 static int bss_is_ess(struct wpa_bss *bss)
1124 {
1125 	if (bss_is_dmg(bss)) {
1126 		return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
1127 			IEEE80211_CAP_DMG_AP;
1128 	}
1129 
1130 	return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
1131 		IEEE80211_CAP_ESS);
1132 }
1133 
1134 
match_mac_mask(const u8 * addr_a,const u8 * addr_b,const u8 * mask)1135 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
1136 {
1137 	size_t i;
1138 
1139 	for (i = 0; i < ETH_ALEN; i++) {
1140 		if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
1141 			return 0;
1142 	}
1143 	return 1;
1144 }
1145 
1146 
addr_in_list(const u8 * addr,const u8 * list,size_t num)1147 static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
1148 {
1149 	size_t i;
1150 
1151 	for (i = 0; i < num; i++) {
1152 		const u8 *a = list + i * ETH_ALEN * 2;
1153 		const u8 *m = a + ETH_ALEN;
1154 
1155 		if (match_mac_mask(a, addr, m))
1156 			return 1;
1157 	}
1158 	return 0;
1159 }
1160 
1161 
owe_trans_ssid(struct wpa_supplicant * wpa_s,struct wpa_bss * bss,const u8 ** ret_ssid,size_t * ret_ssid_len)1162 static void owe_trans_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
1163 			   const u8 **ret_ssid, size_t *ret_ssid_len)
1164 {
1165 #ifdef CONFIG_OWE
1166 	const u8 *owe, *bssid;
1167 
1168 	owe = wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE);
1169 	if (!owe || !wpa_bss_get_rsne(wpa_s, bss, NULL, false))
1170 		return;
1171 
1172 	if (wpas_get_owe_trans_network(owe, &bssid, ret_ssid, ret_ssid_len))
1173 		return;
1174 
1175 	/* Match the profile SSID against the OWE transition mode SSID on the
1176 	 * open network. */
1177 	wpa_dbg(wpa_s, MSG_DEBUG, "OWE: transition mode BSSID: " MACSTR
1178 		" SSID: %s", MAC2STR(bssid),
1179 		wpa_ssid_txt(*ret_ssid, *ret_ssid_len));
1180 
1181 	if (!(bss->flags & WPA_BSS_OWE_TRANSITION)) {
1182 		struct wpa_ssid *ssid;
1183 
1184 		for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1185 			if (wpas_network_disabled(wpa_s, ssid))
1186 				continue;
1187 			if (ssid->ssid_len == *ret_ssid_len &&
1188 			    os_memcmp(ssid->ssid, *ret_ssid, *ret_ssid_len) ==
1189 			    0) {
1190 				/* OWE BSS in transition mode for a currently
1191 				 * enabled OWE network. */
1192 				wpa_dbg(wpa_s, MSG_DEBUG,
1193 					"OWE: transition mode OWE SSID for active OWE profile");
1194 				bss->flags |= WPA_BSS_OWE_TRANSITION;
1195 				break;
1196 			}
1197 		}
1198 	}
1199 #endif /* CONFIG_OWE */
1200 }
1201 
1202 
wpas_valid_ml_bss(struct wpa_supplicant * wpa_s,struct wpa_bss * bss)1203 static bool wpas_valid_ml_bss(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
1204 {
1205 	u16 removed_links;
1206 
1207 	if (!bss->valid_links)
1208 		return true;
1209 
1210 	/* Check if the current BSS is going to be removed */
1211 	removed_links = wpa_bss_parse_reconf_ml_element(wpa_s, bss);
1212 	if (BIT(bss->mld_link_id) & removed_links)
1213 		return false;
1214 
1215 	return true;
1216 }
1217 
1218 
disabled_freq(struct wpa_supplicant * wpa_s,int freq)1219 int disabled_freq(struct wpa_supplicant *wpa_s, int freq)
1220 {
1221 	int i, j;
1222 
1223 	if (!wpa_s->hw.modes || !wpa_s->hw.num_modes)
1224 		return 0;
1225 
1226 	for (j = 0; j < wpa_s->hw.num_modes; j++) {
1227 		struct hostapd_hw_modes *mode = &wpa_s->hw.modes[j];
1228 
1229 		for (i = 0; i < mode->num_channels; i++) {
1230 			struct hostapd_channel_data *chan = &mode->channels[i];
1231 
1232 			if (chan->freq == freq)
1233 				return !!(chan->flag & HOSTAPD_CHAN_DISABLED);
1234 		}
1235 	}
1236 
1237 	return 1;
1238 }
1239 
1240 
1241 static bool wpa_scan_res_ok(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
1242 			    const u8 *match_ssid, size_t match_ssid_len,
1243 			    struct wpa_bss *bss, int bssid_ignore_count,
1244 			    bool debug_print, bool link);
1245 
1246 
1247 #ifdef CONFIG_SAE_PK
sae_pk_acceptable_bss_with_pk(struct wpa_supplicant * wpa_s,struct wpa_bss * orig_bss,struct wpa_ssid * ssid,const u8 * match_ssid,size_t match_ssid_len)1248 static bool sae_pk_acceptable_bss_with_pk(struct wpa_supplicant *wpa_s,
1249 					  struct wpa_bss *orig_bss,
1250 					  struct wpa_ssid *ssid,
1251 					  const u8 *match_ssid,
1252 					  size_t match_ssid_len)
1253 {
1254 	struct wpa_bss *bss;
1255 
1256 	dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1257 		int count;
1258 		const u8 *ie;
1259 
1260 		if (bss == orig_bss)
1261 			continue;
1262 		ie = wpa_bss_get_rsnxe(wpa_s, bss, ssid, false);
1263 		if (!(ieee802_11_rsnx_capab(ie, WLAN_RSNX_CAPAB_SAE_PK)))
1264 			continue;
1265 
1266 		/* TODO: Could be more thorough in checking what kind of
1267 		 * signal strength or throughput estimate would be acceptable
1268 		 * compared to the originally selected BSS. */
1269 		if (bss->est_throughput < 2000)
1270 			return false;
1271 
1272 		count = wpa_bssid_ignore_is_listed(wpa_s, bss->bssid);
1273 		if (wpa_scan_res_ok(wpa_s, ssid, match_ssid, match_ssid_len,
1274 				    bss, count, false, false))
1275 			return true;
1276 	}
1277 
1278 	return false;
1279 }
1280 #endif /* CONFIG_SAE_PK */
1281 
1282 
wpa_scan_res_ok(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,const u8 * match_ssid,size_t match_ssid_len,struct wpa_bss * bss,int bssid_ignore_count,bool debug_print,bool link)1283 static bool wpa_scan_res_ok(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
1284 			    const u8 *match_ssid, size_t match_ssid_len,
1285 			    struct wpa_bss *bss, int bssid_ignore_count,
1286 			    bool debug_print, bool link)
1287 {
1288 	int res;
1289 	bool wpa, check_ssid = false;
1290 #ifdef CONFIG_MBO
1291 	const u8 *assoc_disallow;
1292 #endif /* CONFIG_MBO */
1293 #ifdef CONFIG_SAE
1294 	u8 rsnxe_capa = 0;
1295 	enum sae_pwe sae_pwe;
1296 #endif /* CONFIG_SAE */
1297 	const u8 *ie;
1298 
1299 	ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1300 	wpa = ie && ie[1];
1301 	ie = wpa_bss_get_rsne(wpa_s, bss, ssid, false);
1302 	wpa |= ie && ie[1];
1303 
1304 #ifdef CONFIG_SAE
1305 	ie = wpa_bss_get_rsnxe(wpa_s, bss, ssid, false);
1306 	if (ie && ie[0] == WLAN_EID_VENDOR_SPECIFIC && ie[1] >= 4 + 1)
1307 		rsnxe_capa = ie[4 + 2];
1308 	else if (ie && ie[1] >= 1)
1309 		rsnxe_capa = ie[2];
1310 #endif /* CONFIG_SAE */
1311 
1312 	check_ssid = wpa || ssid->ssid_len > 0;
1313 
1314 	if (wpas_network_disabled(wpa_s, ssid)) {
1315 		if (debug_print)
1316 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - disabled");
1317 		return false;
1318 	}
1319 
1320 	res = wpas_temp_disabled(wpa_s, ssid);
1321 	if (res > 0) {
1322 		if (debug_print)
1323 			wpa_dbg(wpa_s, MSG_DEBUG,
1324 				"   skip - disabled temporarily for %d second(s)",
1325 				res);
1326 		return false;
1327 	}
1328 
1329 #ifdef CONFIG_WPS
1330 	if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && bssid_ignore_count) {
1331 		if (debug_print)
1332 			wpa_dbg(wpa_s, MSG_DEBUG,
1333 				"   skip - BSSID ignored (WPS)");
1334 		return false;
1335 	}
1336 
1337 	if (wpa && ssid->ssid_len == 0 &&
1338 	    wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
1339 		check_ssid = false;
1340 
1341 	if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
1342 		/* Only allow wildcard SSID match if an AP advertises active
1343 		 * WPS operation that matches our mode. */
1344 		check_ssid = ssid->ssid_len > 0 ||
1345 			!wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss);
1346 	}
1347 #endif /* CONFIG_WPS */
1348 
1349 	if (ssid->bssid_set && ssid->ssid_len == 0 &&
1350 	    ether_addr_equal(bss->bssid, ssid->bssid))
1351 		check_ssid = false;
1352 
1353 	if (check_ssid &&
1354 	    (match_ssid_len != ssid->ssid_len ||
1355 	     os_memcmp(match_ssid, ssid->ssid, match_ssid_len) != 0)) {
1356 		if (debug_print)
1357 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID mismatch");
1358 		return false;
1359 	}
1360 
1361 	if (!link && ssid->bssid_set &&
1362 	    !ether_addr_equal(bss->bssid, ssid->bssid)) {
1363 		if (debug_print)
1364 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - BSSID mismatch");
1365 		return false;
1366 	}
1367 
1368 	/* check the list of BSSIDs to ignore */
1369 	if (ssid->num_bssid_ignore &&
1370 	    addr_in_list(bss->bssid, ssid->bssid_ignore,
1371 			 ssid->num_bssid_ignore)) {
1372 		if (debug_print)
1373 			wpa_dbg(wpa_s, MSG_DEBUG,
1374 				"   skip - BSSID configured to be ignored");
1375 		return false;
1376 	}
1377 
1378 	/* if there is a list of accepted BSSIDs, only accept those APs */
1379 	if (ssid->num_bssid_accept &&
1380 	    !addr_in_list(bss->bssid, ssid->bssid_accept,
1381 			  ssid->num_bssid_accept)) {
1382 		if (debug_print)
1383 			wpa_dbg(wpa_s, MSG_DEBUG,
1384 				"   skip - BSSID not in list of accepted values");
1385 		return false;
1386 	}
1387 
1388 	if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss, debug_print))
1389 		return false;
1390 
1391 	if (!wpa &&
1392 	    !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
1393 	    !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
1394 	    !(ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
1395 	    !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
1396 		if (debug_print)
1397 			wpa_dbg(wpa_s, MSG_DEBUG,
1398 				"   skip - non-WPA network not allowed");
1399 		return false;
1400 	}
1401 
1402 #ifdef CONFIG_WEP
1403 	if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) && has_wep_key(ssid)) {
1404 		if (debug_print)
1405 			wpa_dbg(wpa_s, MSG_DEBUG,
1406 				"   skip - ignore WPA/WPA2 AP for WEP network block");
1407 		return false;
1408 	}
1409 #endif /* CONFIG_WEP */
1410 
1411 	if (!wpa_supplicant_match_privacy(bss, ssid)) {
1412 		if (debug_print)
1413 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - privacy mismatch");
1414 		return false;
1415 	}
1416 
1417 	if (ssid->mode != WPAS_MODE_MESH && !bss_is_ess(bss) &&
1418 	    !bss_is_pbss(bss)) {
1419 		if (debug_print)
1420 			wpa_dbg(wpa_s, MSG_DEBUG,
1421 				"   skip - not ESS, PBSS, or MBSS");
1422 		return false;
1423 	}
1424 
1425 	if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) {
1426 		if (debug_print)
1427 			wpa_dbg(wpa_s, MSG_DEBUG,
1428 				"   skip - PBSS mismatch (ssid %d bss %d)",
1429 				ssid->pbss, bss_is_pbss(bss));
1430 		return false;
1431 	}
1432 
1433 	if (!freq_allowed(ssid->freq_list, bss->freq)) {
1434 		if (debug_print)
1435 			wpa_dbg(wpa_s, MSG_DEBUG,
1436 				"   skip - frequency not allowed");
1437 		return false;
1438 	}
1439 
1440 #ifdef CONFIG_MESH
1441 	if (ssid->mode == WPAS_MODE_MESH && ssid->frequency > 0 &&
1442 	    ssid->frequency != bss->freq) {
1443 		if (debug_print)
1444 			wpa_dbg(wpa_s, MSG_DEBUG,
1445 				"   skip - frequency not allowed (mesh)");
1446 		return false;
1447 	}
1448 #endif /* CONFIG_MESH */
1449 
1450 	if (!rate_match(wpa_s, ssid, bss, debug_print)) {
1451 		if (debug_print)
1452 			wpa_dbg(wpa_s, MSG_DEBUG,
1453 				"   skip - rate sets do not match");
1454 		return false;
1455 	}
1456 
1457 #ifdef CONFIG_SAE
1458 	/* When using SAE Password Identifier and when operationg on the 6 GHz
1459 	 * band, only H2E is allowed. */
1460 	sae_pwe = wpas_get_ssid_sae_pwe(wpa_s, ssid);
1461 	if ((sae_pwe == SAE_PWE_HASH_TO_ELEMENT ||
1462 	     wpa_key_mgmt_only_sae_ext_key(ssid->key_mgmt) ||
1463 	     is_6ghz_freq(bss->freq) || ssid->sae_password_id) &&
1464 	    sae_pwe != SAE_PWE_FORCE_HUNT_AND_PECK &&
1465 	    wpa_key_mgmt_only_sae(ssid->key_mgmt) &&
1466 	    !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_H2E))) {
1467 		if (debug_print)
1468 			wpa_dbg(wpa_s, MSG_DEBUG,
1469 				"   skip - SAE H2E required, but not supported by the AP");
1470 		return false;
1471 	}
1472 #endif /* CONFIG_SAE */
1473 
1474 #ifdef CONFIG_SAE_PK
1475 	if (ssid->sae_pk == SAE_PK_MODE_ONLY &&
1476 	    !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_PK))) {
1477 		if (debug_print)
1478 			wpa_dbg(wpa_s, MSG_DEBUG,
1479 				"   skip - SAE-PK required, but not supported by the AP");
1480 		return false;
1481 	}
1482 #endif /* CONFIG_SAE_PK */
1483 
1484 #ifndef CONFIG_IBSS_RSN
1485 	if (ssid->mode == WPAS_MODE_IBSS &&
1486 	    !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE | WPA_KEY_MGMT_WPA_NONE))) {
1487 		if (debug_print)
1488 			wpa_dbg(wpa_s, MSG_DEBUG,
1489 				"   skip - IBSS RSN not supported in the build");
1490 		return false;
1491 	}
1492 #endif /* !CONFIG_IBSS_RSN */
1493 
1494 #ifdef CONFIG_P2P
1495 	if (ssid->p2p_group &&
1496 	    !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1497 	    !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1498 		if (debug_print)
1499 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - no P2P IE seen");
1500 		return false;
1501 	}
1502 
1503 	if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1504 		struct wpabuf *p2p_ie;
1505 		u8 dev_addr[ETH_ALEN];
1506 
1507 		ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1508 		if (!ie) {
1509 			if (debug_print)
1510 				wpa_dbg(wpa_s, MSG_DEBUG,
1511 					"   skip - no P2P element");
1512 			return false;
1513 		}
1514 		p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
1515 		if (!p2p_ie) {
1516 			if (debug_print)
1517 				wpa_dbg(wpa_s, MSG_DEBUG,
1518 					"   skip - could not fetch P2P element");
1519 			return false;
1520 		}
1521 
1522 		if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0 ||
1523 		    !ether_addr_equal(dev_addr, ssid->go_p2p_dev_addr)) {
1524 			if (debug_print)
1525 				wpa_dbg(wpa_s, MSG_DEBUG,
1526 					"   skip - no matching GO P2P Device Address in P2P element");
1527 			wpabuf_free(p2p_ie);
1528 			return false;
1529 		}
1530 		wpabuf_free(p2p_ie);
1531 	}
1532 
1533 	/*
1534 	 * TODO: skip the AP if its P2P IE has Group Formation bit set in the
1535 	 * P2P Group Capability Bitmap and we are not in Group Formation with
1536 	 * that device.
1537 	 */
1538 #endif /* CONFIG_P2P */
1539 
1540 	if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time)) {
1541 		struct os_reltime diff;
1542 
1543 		os_reltime_sub(&wpa_s->scan_min_time, &bss->last_update, &diff);
1544 		if (debug_print)
1545 			wpa_dbg(wpa_s, MSG_DEBUG,
1546 				"   skip - scan result not recent enough (%u.%06u seconds too old)",
1547 				(unsigned int) diff.sec,
1548 				(unsigned int) diff.usec);
1549 		return false;
1550 	}
1551 #ifdef CONFIG_MBO
1552 #ifdef CONFIG_TESTING_OPTIONS
1553 	if (wpa_s->ignore_assoc_disallow)
1554 		goto skip_assoc_disallow;
1555 #endif /* CONFIG_TESTING_OPTIONS */
1556 	assoc_disallow = wpas_mbo_check_assoc_disallow(bss);
1557 	if (assoc_disallow && assoc_disallow[1] >= 1) {
1558 		if (debug_print)
1559 			wpa_dbg(wpa_s, MSG_DEBUG,
1560 				"   skip - MBO association disallowed (reason %u)",
1561 				assoc_disallow[2]);
1562 		return false;
1563 	}
1564 
1565 	if (wpa_is_bss_tmp_disallowed(wpa_s, bss)) {
1566 		if (debug_print)
1567 			wpa_dbg(wpa_s, MSG_DEBUG,
1568 				"   skip - AP temporarily disallowed");
1569 		return false;
1570 	}
1571 #ifdef CONFIG_TESTING_OPTIONS
1572 skip_assoc_disallow:
1573 #endif /* CONFIG_TESTING_OPTIONS */
1574 #endif /* CONFIG_MBO */
1575 
1576 #ifdef CONFIG_DPP
1577 	if ((ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
1578 	    !wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, wpa_s->own_addr,
1579 				 ssid) &&
1580 	    (!ssid->dpp_connector || !ssid->dpp_netaccesskey ||
1581 	     !ssid->dpp_csign)) {
1582 		if (debug_print)
1583 			wpa_dbg(wpa_s, MSG_DEBUG,
1584 				"   skip - no PMKSA entry for DPP");
1585 		return false;
1586 	}
1587 #endif /* CONFIG_DPP */
1588 
1589 #ifdef CONFIG_SAE_PK
1590 	if (ssid->sae_pk == SAE_PK_MODE_AUTOMATIC &&
1591 	    wpa_key_mgmt_sae(ssid->key_mgmt) &&
1592 	    ((ssid->sae_password &&
1593 	      sae_pk_valid_password(ssid->sae_password)) ||
1594 	     (!ssid->sae_password && ssid->passphrase &&
1595 	      sae_pk_valid_password(ssid->passphrase))) &&
1596 	    !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_PK)) &&
1597 	    sae_pk_acceptable_bss_with_pk(wpa_s, bss, ssid, match_ssid,
1598 					  match_ssid_len)) {
1599 		if (debug_print)
1600 			wpa_dbg(wpa_s, MSG_DEBUG,
1601 				"   skip - another acceptable BSS with SAE-PK in the same ESS");
1602 		return false;
1603 	}
1604 #endif /* CONFIG_SAE_PK */
1605 
1606 	if (bss->ssid_len == 0) {
1607 #ifdef CONFIG_OWE
1608 		const u8 *owe_ssid = NULL;
1609 		size_t owe_ssid_len = 0;
1610 
1611 		owe_trans_ssid(wpa_s, bss, &owe_ssid, &owe_ssid_len);
1612 		if (owe_ssid && owe_ssid_len &&
1613 		    owe_ssid_len == ssid->ssid_len &&
1614 		    os_memcmp(owe_ssid, ssid->ssid, owe_ssid_len) == 0) {
1615 			if (debug_print)
1616 				wpa_dbg(wpa_s, MSG_DEBUG,
1617 					"   skip - no SSID in BSS entry for a possible OWE transition mode BSS");
1618 			int_array_add_unique(&wpa_s->owe_trans_scan_freq,
1619 					     bss->freq);
1620 			return false;
1621 		}
1622 #endif /* CONFIG_OWE */
1623 		if (debug_print)
1624 			wpa_dbg(wpa_s, MSG_DEBUG,
1625 				"   skip - no SSID known for the BSS");
1626 		return false;
1627 	}
1628 
1629 	if (!link && !wpas_valid_ml_bss(wpa_s, bss)) {
1630 		if (debug_print)
1631 			wpa_dbg(wpa_s, MSG_DEBUG,
1632 				"   skip - ML BSS going to be removed");
1633 		return false;
1634 	}
1635 
1636 	/* Matching configuration found */
1637 	return true;
1638 }
1639 
1640 
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,bool link)1641 struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
1642 				     int i, struct wpa_bss *bss,
1643 				     struct wpa_ssid *group,
1644 				     int only_first_ssid, int debug_print,
1645 				     bool link)
1646 {
1647 	u8 wpa_ie_len, rsn_ie_len;
1648 	const u8 *ie;
1649 	struct wpa_ssid *ssid;
1650 	const u8 *match_ssid;
1651 	size_t match_ssid_len;
1652 	int bssid_ignore_count;
1653 
1654 	ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1655 	wpa_ie_len = ie ? ie[1] : 0;
1656 
1657 	ie = wpa_bss_get_rsne(wpa_s, bss, NULL, false);
1658 	rsn_ie_len = ie ? ie[1] : 0;
1659 
1660 	if (debug_print) {
1661 		wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR
1662 			" ssid='%s' wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s",
1663 			i, MAC2STR(bss->bssid),
1664 			wpa_ssid_txt(bss->ssid, bss->ssid_len),
1665 			wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
1666 			bss->freq,
1667 			wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ?
1668 			" wps" : "",
1669 			(wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
1670 			 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE))
1671 			? " p2p" : "");
1672 	}
1673 
1674 	bssid_ignore_count = wpa_bssid_ignore_is_listed(wpa_s, bss->bssid);
1675 	if (bssid_ignore_count) {
1676 		int limit = 1;
1677 		if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
1678 			/*
1679 			 * When only a single network is enabled, we can
1680 			 * trigger BSSID ignoring on the first failure. This
1681 			 * should not be done with multiple enabled networks to
1682 			 * avoid getting forced to move into a worse ESS on
1683 			 * single error if there are no other BSSes of the
1684 			 * current ESS.
1685 			 */
1686 			limit = 0;
1687 		}
1688 		if (bssid_ignore_count > limit) {
1689 			if (debug_print) {
1690 				wpa_dbg(wpa_s, MSG_DEBUG,
1691 					"   skip - BSSID ignored (count=%d limit=%d)",
1692 					bssid_ignore_count, limit);
1693 			}
1694 			return NULL;
1695 		}
1696 	}
1697 
1698 	match_ssid = bss->ssid;
1699 	match_ssid_len = bss->ssid_len;
1700 	owe_trans_ssid(wpa_s, bss, &match_ssid, &match_ssid_len);
1701 
1702 	if (match_ssid_len == 0) {
1703 		if (debug_print)
1704 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID not known");
1705 		return NULL;
1706 	}
1707 
1708 	if (disallowed_bssid(wpa_s, bss->bssid)) {
1709 		if (debug_print)
1710 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - BSSID disallowed");
1711 		return NULL;
1712 	}
1713 
1714 	if (disallowed_ssid(wpa_s, match_ssid, match_ssid_len)) {
1715 		if (debug_print)
1716 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID disallowed");
1717 		return NULL;
1718 	}
1719 
1720 	if (disabled_freq(wpa_s, bss->freq)) {
1721 		if (debug_print)
1722 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - channel disabled");
1723 		return NULL;
1724 	}
1725 
1726 	if (wnm_is_bss_excluded(wpa_s, bss)) {
1727 		if (debug_print)
1728 			wpa_dbg(wpa_s, MSG_DEBUG, "   skip - BSSID excluded");
1729 		return NULL;
1730 	}
1731 
1732 	for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
1733 		if (wpa_scan_res_ok(wpa_s, ssid, match_ssid, match_ssid_len,
1734 				    bss, bssid_ignore_count, debug_print, link))
1735 			return ssid;
1736 	}
1737 
1738 	/* No matching configuration found */
1739 	return NULL;
1740 }
1741 
1742 
1743 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)1744 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1745 			  struct wpa_ssid *group,
1746 			  struct wpa_ssid **selected_ssid,
1747 			  int only_first_ssid)
1748 {
1749 	unsigned int i;
1750 
1751 	if (wpa_s->current_ssid) {
1752 		struct wpa_ssid *ssid;
1753 
1754 		wpa_dbg(wpa_s, MSG_DEBUG,
1755 			"Scan results matching the currently selected network");
1756 		for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1757 			struct wpa_bss *bss = wpa_s->last_scan_res[i];
1758 
1759 			ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1760 						  only_first_ssid, 0, false);
1761 			if (ssid != wpa_s->current_ssid)
1762 				continue;
1763 			wpa_dbg(wpa_s, MSG_DEBUG, "%u: " MACSTR
1764 				" freq=%d level=%d snr=%d est_throughput=%u",
1765 				i, MAC2STR(bss->bssid), bss->freq, bss->level,
1766 				bss->snr, bss->est_throughput);
1767 		}
1768 	}
1769 
1770 	if (only_first_ssid)
1771 		wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1772 			group->id);
1773 	else
1774 		wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1775 			group->priority);
1776 
1777 	for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1778 		struct wpa_bss *bss = wpa_s->last_scan_res[i];
1779 
1780 		wpa_s->owe_transition_select = 1;
1781 		*selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1782 						    only_first_ssid, 1, false);
1783 		wpa_s->owe_transition_select = 0;
1784 		if (!*selected_ssid)
1785 			continue;
1786 		wpa_dbg(wpa_s, MSG_DEBUG, "   selected %sBSS " MACSTR
1787 			" ssid='%s'",
1788 			bss == wpa_s->current_bss ? "current ": "",
1789 			MAC2STR(bss->bssid),
1790 			wpa_ssid_txt(bss->ssid, bss->ssid_len));
1791 		return bss;
1792 	}
1793 
1794 	return NULL;
1795 }
1796 
1797 
wpa_supplicant_pick_network(struct wpa_supplicant * wpa_s,struct wpa_ssid ** selected_ssid,bool clear_ignorelist)1798 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1799 					     struct wpa_ssid **selected_ssid,
1800 					     bool clear_ignorelist)
1801 {
1802 	struct wpa_bss *selected = NULL;
1803 	size_t prio;
1804 	struct wpa_ssid *next_ssid = NULL;
1805 	struct wpa_ssid *ssid;
1806 
1807 	if (wpa_s->last_scan_res == NULL ||
1808 	    wpa_s->last_scan_res_used == 0)
1809 		return NULL; /* no scan results from last update */
1810 
1811 	if (wpa_s->next_ssid) {
1812 		/* check that next_ssid is still valid */
1813 		for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1814 			if (ssid == wpa_s->next_ssid)
1815 				break;
1816 		}
1817 		next_ssid = ssid;
1818 		wpa_s->next_ssid = NULL;
1819 	}
1820 
1821 	while (selected == NULL) {
1822 		for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1823 			if (next_ssid && next_ssid->priority ==
1824 			    wpa_s->conf->pssid[prio]->priority) {
1825 				selected = wpa_supplicant_select_bss(
1826 					wpa_s, next_ssid, selected_ssid, 1);
1827 				if (selected)
1828 					break;
1829 			}
1830 			selected = wpa_supplicant_select_bss(
1831 				wpa_s, wpa_s->conf->pssid[prio],
1832 				selected_ssid, 0);
1833 			if (selected)
1834 				break;
1835 		}
1836 
1837 		if (!selected &&
1838 		    (wpa_s->bssid_ignore || wnm_active_bss_trans_mgmt(wpa_s)) &&
1839 		    !wpa_s->countermeasures && clear_ignorelist) {
1840 			wpa_dbg(wpa_s, MSG_DEBUG,
1841 				"No APs found - clear BSSID ignore list and try again");
1842 			wnm_btm_reset(wpa_s);
1843 			wpa_bssid_ignore_clear(wpa_s);
1844 			wpa_s->bssid_ignore_cleared = true;
1845 		} else if (selected == NULL)
1846 			break;
1847 	}
1848 
1849 	ssid = *selected_ssid;
1850 	if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1851 	    !ssid->passphrase && !ssid->ext_psk) {
1852 		const char *field_name, *txt = NULL;
1853 
1854 		wpa_dbg(wpa_s, MSG_DEBUG,
1855 			"PSK/passphrase not yet available for the selected network");
1856 
1857 		wpas_notify_network_request(wpa_s, ssid,
1858 					    WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1859 
1860 		field_name = wpa_supplicant_ctrl_req_to_string(
1861 			WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1862 		if (field_name == NULL)
1863 			return NULL;
1864 
1865 		wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1866 
1867 		selected = NULL;
1868 	}
1869 
1870 	return selected;
1871 }
1872 
1873 
wpa_supplicant_req_new_scan(struct wpa_supplicant * wpa_s,int timeout_sec,int timeout_usec)1874 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1875 					int timeout_sec, int timeout_usec)
1876 {
1877 	if (!wpa_supplicant_enabled_networks(wpa_s)) {
1878 		/*
1879 		 * No networks are enabled; short-circuit request so
1880 		 * we don't wait timeout seconds before transitioning
1881 		 * to INACTIVE state.
1882 		 */
1883 		wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1884 			"since there are no enabled networks");
1885 		wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1886 		return;
1887 	}
1888 
1889 	wpa_s->scan_for_connection = 1;
1890 	wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1891 }
1892 
1893 
ml_link_probe_scan(struct wpa_supplicant * wpa_s)1894 static bool ml_link_probe_scan(struct wpa_supplicant *wpa_s)
1895 {
1896 	if (!wpa_s->ml_connect_probe_ssid || !wpa_s->ml_connect_probe_bss)
1897 		return false;
1898 
1899 	wpa_msg(wpa_s, MSG_DEBUG,
1900 		"Request association with " MACSTR " after ML probe",
1901 		MAC2STR(wpa_s->ml_connect_probe_bss->bssid));
1902 
1903 	wpa_supplicant_associate(wpa_s, wpa_s->ml_connect_probe_bss,
1904 				 wpa_s->ml_connect_probe_ssid);
1905 
1906 	wpa_s->ml_connect_probe_ssid = NULL;
1907 	wpa_s->ml_connect_probe_bss = NULL;
1908 
1909 	return true;
1910 }
1911 
1912 
wpa_supplicant_connect_ml_missing(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)1913 static int wpa_supplicant_connect_ml_missing(struct wpa_supplicant *wpa_s,
1914 					     struct wpa_bss *selected,
1915 					     struct wpa_ssid *ssid)
1916 {
1917 	int *freqs;
1918 	u16 missing_links = 0, removed_links, usable_links;
1919 	int link_id;
1920 
1921 	if (!((wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_MLO) &&
1922 	      (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)))
1923 		return 0;
1924 
1925 	usable_links = wpa_bss_get_usable_links(wpa_s, selected, ssid,
1926 						&missing_links);
1927 	if (!usable_links || !missing_links)
1928 		return 0;
1929 
1930 	removed_links = wpa_bss_parse_reconf_ml_element(wpa_s, selected);
1931 	missing_links &= ~removed_links;
1932 
1933 	if (!missing_links)
1934 		return 0;
1935 
1936 	wpa_dbg(wpa_s, MSG_DEBUG,
1937 		"MLD: Doing an ML probe for missing links 0x%04x",
1938 		missing_links);
1939 
1940 	freqs = os_malloc(sizeof(int) * 2);
1941 	if (!freqs)
1942 		return 0;
1943 
1944 	wpa_s->ml_connect_probe_ssid = ssid;
1945 	wpa_s->ml_connect_probe_bss = selected;
1946 
1947 	freqs[0] = selected->freq;
1948 	freqs[1] = 0;
1949 
1950 	/*
1951 	 * Also visit the channels of the missing links. The ML probe request
1952 	 * on the association link's channel is sufficient when the AP MLD
1953 	 * responds to it with complete per-STA profiles, but not all APs do
1954 	 * so. Scanning the channels of the missing links allows the
1955 	 * information to be updated from the Beacon or Probe Response frames
1956 	 * of the affiliated APs themselves.
1957 	 */
1958 	for_each_link(missing_links, link_id) {
1959 		int freq = selected->mld_links[link_id].freq;
1960 
1961 		if (freq)
1962 			int_array_add_unique(&freqs, freq);
1963 	}
1964 
1965 	wpa_s->manual_scan_passive = 0;
1966 	wpa_s->manual_scan_use_id = 0;
1967 	wpa_s->manual_scan_only_new = 0;
1968 	wpa_s->scan_id_count = 0;
1969 	os_free(wpa_s->manual_scan_freqs);
1970 	wpa_s->manual_scan_freqs = freqs;
1971 
1972 	os_memcpy(wpa_s->ml_probe_bssid, selected->bssid, ETH_ALEN);
1973 
1974 	/*
1975 	 * In case the ML probe request is intended to retrieve information from
1976 	 * the transmitted BSS, the AP MLD ID should be included and should be
1977 	 * set to zero.
1978 	 * In case the ML probe requested is intended to retrieve information
1979 	 * from a non-transmitted BSS, the AP MLD ID should not be included.
1980 	 */
1981 	if (selected->mld_bss_non_transmitted)
1982 		wpa_s->ml_probe_mld_id = -1;
1983 	else
1984 		wpa_s->ml_probe_mld_id = 0;
1985 
1986 	if (ssid && ssid->ssid_len) {
1987 		os_free(wpa_s->ssids_from_scan_req);
1988 		wpa_s->num_ssids_from_scan_req = 0;
1989 
1990 		wpa_s->ssids_from_scan_req =
1991 			os_zalloc(sizeof(struct wpa_ssid_value));
1992 		if (wpa_s->ssids_from_scan_req) {
1993 			wpa_printf(MSG_DEBUG,
1994 				   "MLD: ML probe: With direct SSID");
1995 
1996 			wpa_s->num_ssids_from_scan_req = 1;
1997 			wpa_s->ssids_from_scan_req[0].ssid_len = ssid->ssid_len;
1998 			os_memcpy(wpa_s->ssids_from_scan_req[0].ssid,
1999 				  ssid->ssid, ssid->ssid_len);
2000 		}
2001 	}
2002 
2003 	wpa_s->ml_probe_links = missing_links;
2004 
2005 	wpa_s->normal_scans = 0;
2006 	wpa_s->scan_req = MANUAL_SCAN_REQ;
2007 	wpa_s->after_wps = 0;
2008 	wpa_s->known_wps_freq = 0;
2009 	wpa_supplicant_req_scan(wpa_s, 0, 0);
2010 
2011 	return 1;
2012 }
2013 
2014 
wpa_supplicant_connect(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)2015 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
2016 			   struct wpa_bss *selected,
2017 			   struct wpa_ssid *ssid)
2018 {
2019 #ifdef IEEE8021X_EAPOL
2020 	if ((eap_is_wps_pbc_enrollee(&ssid->eap) &&
2021 	     wpas_wps_partner_link_overlap_detect(wpa_s)) ||
2022 	    wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
2023 		wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
2024 			"PBC session overlap");
2025 		wpas_notify_wps_event_pbc_overlap(wpa_s);
2026 		wpa_s->wps_overlap = true;
2027 #ifdef CONFIG_P2P
2028 		if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
2029 		    wpa_s->p2p_in_provisioning) {
2030 			eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
2031 					       wpa_s, NULL);
2032 			return -1;
2033 		}
2034 #endif /* CONFIG_P2P */
2035 
2036 #ifdef CONFIG_WPS
2037 		wpas_wps_pbc_overlap(wpa_s);
2038 		wpas_wps_cancel(wpa_s);
2039 #endif /* CONFIG_WPS */
2040 		return -1;
2041 	}
2042 #endif /* IEEE8021X_EAPOL */
2043 
2044 	wpa_msg(wpa_s, MSG_DEBUG,
2045 		"Considering connect request: reassociate: %d  selected: "
2046 		MACSTR "  bssid: " MACSTR "  pending: " MACSTR
2047 		"  wpa_state: %s  ssid=%p  current_ssid=%p",
2048 		wpa_s->reassociate, MAC2STR(selected->bssid),
2049 		MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
2050 		wpa_supplicant_state_txt(wpa_s->wpa_state),
2051 		ssid, wpa_s->current_ssid);
2052 
2053 	/*
2054 	 * Do not trigger new association unless the BSSID has changed or if
2055 	 * reassociation is requested. If we are in process of associating with
2056 	 * the selected BSSID, do not trigger new attempt.
2057 	 */
2058 	if (wpa_s->reassociate ||
2059 	    (!ether_addr_equal(selected->bssid, wpa_s->bssid) &&
2060 	     ((wpa_s->wpa_state != WPA_ASSOCIATING &&
2061 	       wpa_s->wpa_state != WPA_AUTHENTICATING) ||
2062 	      (!is_zero_ether_addr(wpa_s->pending_bssid) &&
2063 	       !ether_addr_equal(selected->bssid, wpa_s->pending_bssid)) ||
2064 	      (is_zero_ether_addr(wpa_s->pending_bssid) &&
2065 	       ssid != wpa_s->current_ssid)))) {
2066 		if (wpa_supplicant_scard_init(wpa_s, ssid)) {
2067 			wpa_supplicant_req_new_scan(wpa_s, 10, 0);
2068 			return 0;
2069 		}
2070 
2071 		if (wpa_supplicant_connect_ml_missing(wpa_s, selected, ssid))
2072 			return 0;
2073 
2074 		wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
2075 			MAC2STR(selected->bssid));
2076 		wpa_supplicant_associate(wpa_s, selected, ssid);
2077 	} else {
2078 		wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
2079 			"connect with the selected AP");
2080 	}
2081 
2082 	return 0;
2083 }
2084 
2085 
2086 static struct wpa_ssid *
wpa_supplicant_pick_new_network(struct wpa_supplicant * wpa_s)2087 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
2088 {
2089 	size_t prio;
2090 	struct wpa_ssid *ssid;
2091 
2092 	for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
2093 		for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
2094 		{
2095 			if (wpas_network_disabled(wpa_s, ssid))
2096 				continue;
2097 #ifndef CONFIG_IBSS_RSN
2098 			if (ssid->mode == WPAS_MODE_IBSS &&
2099 			    !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE |
2100 						WPA_KEY_MGMT_WPA_NONE))) {
2101 				wpa_msg(wpa_s, MSG_INFO,
2102 					"IBSS RSN not supported in the build - cannot use the profile for SSID '%s'",
2103 					wpa_ssid_txt(ssid->ssid,
2104 						     ssid->ssid_len));
2105 				continue;
2106 			}
2107 #endif /* !CONFIG_IBSS_RSN */
2108 			if (ssid->mode == WPAS_MODE_IBSS ||
2109 			    ssid->mode == WPAS_MODE_AP ||
2110 			    ssid->mode == WPAS_MODE_MESH)
2111 				return ssid;
2112 		}
2113 	}
2114 	return NULL;
2115 }
2116 
2117 
2118 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
2119  * on BSS added and BSS changed events */
wpa_supplicant_rsn_preauth_scan_results(struct wpa_supplicant * wpa_s)2120 static void wpa_supplicant_rsn_preauth_scan_results(
2121 	struct wpa_supplicant *wpa_s)
2122 {
2123 	struct wpa_bss *bss;
2124 
2125 	if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
2126 		return;
2127 
2128 	dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
2129 		const u8 *ssid, *rsn;
2130 
2131 		ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
2132 		if (ssid == NULL)
2133 			continue;
2134 
2135 		rsn = wpa_bss_get_rsne(wpa_s, bss, NULL, false);
2136 		if (rsn == NULL)
2137 			continue;
2138 
2139 		rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
2140 	}
2141 
2142 }
2143 
2144 
2145 #ifndef CONFIG_NO_ROAMING
2146 
wpas_get_snr_signal_info(u32 frequency,int avg_signal,int noise)2147 static int wpas_get_snr_signal_info(u32 frequency, int avg_signal, int noise)
2148 {
2149 	if (noise == WPA_INVALID_NOISE) {
2150 		if (IS_5GHZ(frequency)) {
2151 			noise = DEFAULT_NOISE_FLOOR_5GHZ;
2152 		} else if (is_6ghz_freq(frequency)) {
2153 			noise = DEFAULT_NOISE_FLOOR_6GHZ;
2154 		} else {
2155 			noise = DEFAULT_NOISE_FLOOR_2GHZ;
2156 		}
2157 	}
2158 	return avg_signal - noise;
2159 }
2160 
2161 
2162 static unsigned int
wpas_get_est_throughput_from_bss_snr(const struct wpa_supplicant * wpa_s,const struct wpa_bss * bss,int snr)2163 wpas_get_est_throughput_from_bss_snr(const struct wpa_supplicant *wpa_s,
2164 				     const struct wpa_bss *bss, int snr)
2165 {
2166 	int rate = wpa_bss_get_max_rate(bss);
2167 	const u8 *ies = wpa_bss_ie_ptr(bss);
2168 	size_t ie_len = bss->ie_len ? bss->ie_len : bss->beacon_ie_len;
2169 	enum chan_width max_cw = CHAN_WIDTH_UNKNOWN;
2170 
2171 	return wpas_get_est_tpt(wpa_s, ies, ie_len, rate, snr, bss->freq,
2172 				&max_cw);
2173 }
2174 
2175 
wpas_evaluate_band_score(int frequency)2176 static int wpas_evaluate_band_score(int frequency)
2177 {
2178 	if (is_6ghz_freq(frequency))
2179 		return 2;
2180 	if (IS_5GHZ(frequency))
2181 		return 1;
2182 	return 0;
2183 }
2184 
2185 
wpa_supplicant_need_to_roam_within_ess(struct wpa_supplicant * wpa_s,struct wpa_bss * current_bss,struct wpa_bss * selected,bool poll_current)2186 int wpa_supplicant_need_to_roam_within_ess(struct wpa_supplicant *wpa_s,
2187 					   struct wpa_bss *current_bss,
2188 					   struct wpa_bss *selected,
2189 					   bool poll_current)
2190 {
2191 	int min_diff, diff;
2192 	int cur_band_score, sel_band_score;
2193 	int to_5ghz, to_6ghz;
2194 	int cur_level, sel_level;
2195 	unsigned int cur_est, sel_est;
2196 	struct wpa_signal_info si;
2197 	int cur_snr = 0;
2198 	int ret = 0;
2199 	const u8 *cur_ies = wpa_bss_ie_ptr(current_bss);
2200 	const u8 *sel_ies = wpa_bss_ie_ptr(selected);
2201 	size_t cur_ie_len = current_bss->ie_len ? current_bss->ie_len :
2202 		current_bss->beacon_ie_len;
2203 	size_t sel_ie_len = selected->ie_len ? selected->ie_len :
2204 		selected->beacon_ie_len;
2205 
2206 	wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
2207 	wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
2208 		" freq=%d level=%d snr=%d est_throughput=%u",
2209 		MAC2STR(current_bss->bssid),
2210 		current_bss->freq, current_bss->level,
2211 		current_bss->snr, current_bss->est_throughput);
2212 	wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
2213 		" freq=%d level=%d snr=%d est_throughput=%u",
2214 		MAC2STR(selected->bssid), selected->freq, selected->level,
2215 		selected->snr, selected->est_throughput);
2216 
2217 	if (wpas_ap_link_address(wpa_s, selected->bssid)) {
2218 		wpa_dbg(wpa_s, MSG_DEBUG, "MLD: associated to selected BSS");
2219 		return 0;
2220 	}
2221 
2222 	if (wpa_s->current_ssid->bssid_set &&
2223 	    ether_addr_equal(selected->bssid, wpa_s->current_ssid->bssid)) {
2224 		wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
2225 			"has preferred BSSID");
2226 		return 1;
2227 	}
2228 
2229 	/*
2230 	 * Try to poll the signal from the driver since this will allow to get
2231 	 * more accurate values. In some cases, there can be big differences
2232 	 * between the RSSI of the Probe Response frames of the AP we are
2233 	 * associated with and the Beacon frames we hear from the same AP after
2234 	 * association. This can happen, e.g., when there are two antennas that
2235 	 * hear the AP very differently. If the driver chooses to hear the
2236 	 * Probe Response frames during the scan on the "bad" antenna because
2237 	 * it wants to save power, but knows to choose the other antenna after
2238 	 * association, we will hear our AP with a low RSSI as part of the
2239 	 * scan even when we can hear it decently on the other antenna. To cope
2240 	 * with this, ask the driver to teach us how it hears the AP. Also, the
2241 	 * scan results may be a bit old, since we can very quickly get fresh
2242 	 * information about our currently associated AP.
2243 	 */
2244 	if (poll_current && wpa_drv_signal_poll(wpa_s, &si) == 0 &&
2245 	    (si.data.avg_beacon_signal || si.data.avg_signal)) {
2246 		/*
2247 		 * Normalize avg_signal to the RSSI over 20 MHz, as the
2248 		 * throughput is estimated based on the RSSI over 20 MHz
2249 		 */
2250 		cur_level = si.data.avg_beacon_signal ?
2251 			si.data.avg_beacon_signal :
2252 			(si.data.avg_signal -
2253 			 wpas_channel_width_rssi_bump(cur_ies, cur_ie_len,
2254 						      si.chanwidth));
2255 		cur_snr = wpas_get_snr_signal_info(si.frequency, cur_level,
2256 						   si.current_noise);
2257 
2258 		cur_est = wpas_get_est_throughput_from_bss_snr(wpa_s,
2259 							       current_bss,
2260 							       cur_snr);
2261 		wpa_dbg(wpa_s, MSG_DEBUG,
2262 			"Using signal poll values for the current BSS: level=%d snr=%d est_throughput=%u",
2263 			cur_level, cur_snr, cur_est);
2264 	} else {
2265 		/* Level and SNR are measured over 20 MHz channel */
2266 		cur_level = current_bss->level;
2267 		cur_snr = current_bss->snr;
2268 		cur_est = current_bss->est_throughput;
2269 	}
2270 
2271 	/* Adjust the SNR of BSSes based on the channel width. */
2272 	cur_level += wpas_channel_width_rssi_bump(cur_ies, cur_ie_len,
2273 						  current_bss->max_cw);
2274 	cur_snr = wpas_adjust_snr_by_chanwidth(cur_ies, cur_ie_len,
2275 					       current_bss->max_cw, cur_snr);
2276 
2277 	sel_est = selected->est_throughput;
2278 	sel_level = selected->level +
2279 		wpas_channel_width_rssi_bump(sel_ies, sel_ie_len,
2280 					     selected->max_cw);
2281 
2282 	if (sel_est > cur_est + 5000) {
2283 		wpa_dbg(wpa_s, MSG_DEBUG,
2284 			"Allow reassociation - selected BSS has better estimated throughput");
2285 		return 1;
2286 	}
2287 
2288 	to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
2289 	to_6ghz = is_6ghz_freq(selected->freq) &&
2290 		!is_6ghz_freq(current_bss->freq);
2291 
2292 	if (cur_level < 0 &&
2293 	    cur_level > sel_level + to_5ghz * 2 + to_6ghz * 2 &&
2294 	    sel_est < cur_est * 1.2) {
2295 		wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
2296 			"signal level");
2297 		return 0;
2298 	}
2299 
2300 	if (cur_est > sel_est + 5000) {
2301 		wpa_dbg(wpa_s, MSG_DEBUG,
2302 			"Skip roam - Current BSS has better estimated throughput");
2303 		return 0;
2304 	}
2305 
2306 	if (cur_snr > GREAT_SNR) {
2307 		wpa_dbg(wpa_s, MSG_DEBUG,
2308 			"Skip roam - Current BSS has good SNR (%u > %u)",
2309 			cur_snr, GREAT_SNR);
2310 		return 0;
2311 	}
2312 
2313 	if (cur_level < -85) /* ..-86 dBm */
2314 		min_diff = 1;
2315 	else if (cur_level < -80) /* -85..-81 dBm */
2316 		min_diff = 2;
2317 	else if (cur_level < -75) /* -80..-76 dBm */
2318 		min_diff = 3;
2319 	else if (cur_level < -70) /* -75..-71 dBm */
2320 		min_diff = 4;
2321 	else if (cur_level < 0) /* -70..-1 dBm */
2322 		min_diff = 5;
2323 	else /* unspecified units (not in dBm) */
2324 		min_diff = 2;
2325 
2326 	if (cur_est > sel_est * 1.5)
2327 		min_diff += 10;
2328 	else if (cur_est > sel_est * 1.2)
2329 		min_diff += 5;
2330 	else if (cur_est > sel_est * 1.1)
2331 		min_diff += 2;
2332 	else if (cur_est > sel_est)
2333 		min_diff++;
2334 	else if (sel_est > cur_est * 1.5)
2335 		min_diff -= 10;
2336 	else if (sel_est > cur_est * 1.2)
2337 		min_diff -= 5;
2338 	else if (sel_est > cur_est * 1.1)
2339 		min_diff -= 2;
2340 	else if (sel_est > cur_est)
2341 		min_diff--;
2342 
2343 	cur_band_score = wpas_evaluate_band_score(current_bss->freq);
2344 	sel_band_score = wpas_evaluate_band_score(selected->freq);
2345 	min_diff += (cur_band_score - sel_band_score) * 2;
2346 	if (wpa_s->signal_threshold && cur_level <= wpa_s->signal_threshold &&
2347 	    sel_level > wpa_s->signal_threshold)
2348 		min_diff -= 2;
2349 	diff = sel_level - cur_level;
2350 	if (diff < min_diff) {
2351 		wpa_dbg(wpa_s, MSG_DEBUG,
2352 			"Skip roam - too small difference in signal level (%d < %d)",
2353 			diff, min_diff);
2354 		ret = 0;
2355 	} else {
2356 		wpa_dbg(wpa_s, MSG_DEBUG,
2357 			"Allow reassociation due to difference in signal level (%d >= %d)",
2358 			diff, min_diff);
2359 		ret = 1;
2360 	}
2361 	wpa_msg_ctrl(wpa_s, MSG_INFO, "%scur_bssid=" MACSTR
2362 		     " cur_freq=%d cur_level=%d cur_est=%d sel_bssid=" MACSTR
2363 		     " sel_freq=%d sel_level=%d sel_est=%d",
2364 		     ret ? WPA_EVENT_DO_ROAM : WPA_EVENT_SKIP_ROAM,
2365 		     MAC2STR(current_bss->bssid),
2366 		     current_bss->freq, cur_level, cur_est,
2367 		     MAC2STR(selected->bssid),
2368 		     selected->freq, sel_level, sel_est);
2369 	return ret;
2370 }
2371 
2372 #endif /* CONFIG_NO_ROAMING */
2373 
2374 
wpa_supplicant_need_to_roam(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)2375 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
2376 				       struct wpa_bss *selected,
2377 				       struct wpa_ssid *ssid)
2378 {
2379 	struct wpa_bss *current_bss = NULL;
2380 	const u8 *bssid;
2381 
2382 	if (wpa_s->reassociate)
2383 		return 1; /* explicit request to reassociate */
2384 	if (wpa_s->wpa_state < WPA_ASSOCIATED)
2385 		return 1; /* we are not associated; continue */
2386 	if (wpa_s->current_ssid == NULL)
2387 		return 1; /* unknown current SSID */
2388 	if (wpa_s->current_ssid != ssid)
2389 		return 1; /* different network block */
2390 
2391 	if (wpas_driver_bss_selection(wpa_s))
2392 		return 0; /* Driver-based roaming */
2393 
2394 	if (wpa_s->valid_links)
2395 		bssid = wpa_s->links[wpa_s->mlo_assoc_link_id].bssid;
2396 	else
2397 		bssid = wpa_s->bssid;
2398 
2399 	if (wpa_s->current_ssid->ssid)
2400 		current_bss = wpa_bss_get(wpa_s, bssid,
2401 					  wpa_s->current_ssid->ssid,
2402 					  wpa_s->current_ssid->ssid_len);
2403 	if (!current_bss)
2404 		current_bss = wpa_bss_get_bssid(wpa_s, bssid);
2405 
2406 	if (!current_bss)
2407 		return 1; /* current BSS not seen in scan results */
2408 
2409 	if (current_bss == selected)
2410 		return 0;
2411 
2412 	if (selected->last_update_idx > current_bss->last_update_idx)
2413 		return 1; /* current BSS not seen in the last scan */
2414 
2415 #ifndef CONFIG_NO_ROAMING
2416 	return wpa_supplicant_need_to_roam_within_ess(wpa_s, current_bss,
2417 						      selected, true);
2418 #else /* CONFIG_NO_ROAMING */
2419 	return 0;
2420 #endif /* CONFIG_NO_ROAMING */
2421 }
2422 
2423 
wpas_trigger_6ghz_scan(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2424 static int wpas_trigger_6ghz_scan(struct wpa_supplicant *wpa_s,
2425 				  union wpa_event_data *data)
2426 {
2427 	struct wpa_driver_scan_params params;
2428 	unsigned int j;
2429 
2430 	wpa_dbg(wpa_s, MSG_INFO, "Triggering 6GHz-only scan");
2431 	os_memset(&params, 0, sizeof(params));
2432 	params.non_coloc_6ghz = wpa_s->last_scan_non_coloc_6ghz;
2433 	for (j = 0; j < data->scan_info.num_ssids; j++)
2434 		params.ssids[j] = data->scan_info.ssids[j];
2435 	params.num_ssids = data->scan_info.num_ssids;
2436 	wpa_add_scan_freqs_list(wpa_s, HOSTAPD_MODE_IEEE80211A, &params,
2437 				true, false, false);
2438 	if (!wpa_supplicant_trigger_scan(wpa_s, &params, true, true)) {
2439 		wpa_s->scan_in_progress_6ghz = true;
2440 		wpas_notify_scan_in_progress_6ghz(wpa_s);
2441 		os_free(params.freqs);
2442 		return 1;
2443 	}
2444 	wpa_dbg(wpa_s, MSG_INFO, "Failed to trigger 6GHz-only scan");
2445 	os_free(params.freqs);
2446 	return 0;
2447 }
2448 
2449 
wpas_short_ssid_match(struct wpa_supplicant * wpa_s,struct wpa_scan_results * scan_res)2450 static bool wpas_short_ssid_match(struct wpa_supplicant *wpa_s,
2451 				  struct wpa_scan_results *scan_res)
2452 {
2453 	size_t i;
2454 	struct wpa_ssid *ssid = wpa_s->current_ssid;
2455 	u32 current_ssid_short = ieee80211_crc32(ssid->ssid, ssid->ssid_len);
2456 
2457 	for (i = 0; i < scan_res->num; i++) {
2458 		struct wpa_scan_res *res = scan_res->res[i];
2459 		const u8 *rnr_ie, *ie_end;
2460 		const struct ieee80211_neighbor_ap_info *info;
2461 		size_t left;
2462 
2463 		rnr_ie = wpa_scan_get_ie(res, WLAN_EID_REDUCED_NEIGHBOR_REPORT);
2464 		if (!rnr_ie)
2465 			continue;
2466 
2467 		ie_end = rnr_ie + 2 + rnr_ie[1];
2468 		rnr_ie += 2;
2469 
2470 		left = ie_end - rnr_ie;
2471 		if (left < sizeof(struct ieee80211_neighbor_ap_info))
2472 			continue;
2473 
2474 		info = (const struct ieee80211_neighbor_ap_info *) rnr_ie;
2475 		if (info->tbtt_info_len < 11)
2476 			continue; /* short SSID not included */
2477 		left -= sizeof(struct ieee80211_neighbor_ap_info);
2478 		rnr_ie += sizeof(struct ieee80211_neighbor_ap_info);
2479 
2480 		while (left >= info->tbtt_info_len && rnr_ie + 11 <= ie_end) {
2481 			/* Skip TBTT offset and BSSID */
2482 			u32 short_ssid = WPA_GET_LE32(rnr_ie + 1 + ETH_ALEN);
2483 
2484 			if (short_ssid == current_ssid_short)
2485 				return true;
2486 
2487 			left -= info->tbtt_info_len;
2488 			rnr_ie += info->tbtt_info_len;
2489 		}
2490 	}
2491 
2492 	return false;
2493 }
2494 
2495 
2496 /*
2497  * Return a negative value if no scan results could be fetched or if scan
2498  * results should not be shared with other virtual interfaces.
2499  * Return 0 if scan results were fetched and may be shared with other
2500  * interfaces.
2501  * Return 1 if scan results may be shared with other virtual interfaces but may
2502  * not trigger any operations.
2503  * Return 2 if the interface was removed and cannot be used.
2504  */
_wpa_supplicant_event_scan_results(struct wpa_supplicant * wpa_s,union wpa_event_data * data,int own_request,int update_only)2505 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
2506 					      union wpa_event_data *data,
2507 					      int own_request, int update_only)
2508 {
2509 	struct wpa_scan_results *scan_res = NULL;
2510 	int ret = 0;
2511 	int ap = 0;
2512 	bool trigger_6ghz_scan;
2513 	bool short_ssid_match_found = false;
2514 #ifndef CONFIG_NO_RANDOM_POOL
2515 	size_t i, num;
2516 #endif /* CONFIG_NO_RANDOM_POOL */
2517 
2518 #ifdef CONFIG_AP
2519 	if (wpa_s->ap_iface)
2520 		ap = 1;
2521 #endif /* CONFIG_AP */
2522 
2523 	trigger_6ghz_scan = wpa_s->crossed_6ghz_dom &&
2524 		wpa_s->last_scan_all_chan;
2525 	wpa_s->crossed_6ghz_dom = false;
2526 	wpa_s->last_scan_all_chan = false;
2527 
2528 	wpa_supplicant_notify_scanning(wpa_s, 0);
2529 
2530 	scan_res = wpa_supplicant_get_scan_results(wpa_s,
2531 						   data ? &data->scan_info :
2532 						   NULL, 1, NULL);
2533 
2534 	if (wpa_s->scan_in_progress_6ghz) {
2535 		wpa_s->scan_in_progress_6ghz = false;
2536 		wpas_notify_scan_in_progress_6ghz(wpa_s);
2537 	}
2538 
2539 	if (scan_res == NULL) {
2540 		if (wpa_s->conf->ap_scan == 2 || ap ||
2541 		    wpa_s->scan_res_handler == scan_only_handler)
2542 			return -1;
2543 		if (!own_request)
2544 			return -1;
2545 		if (data && data->scan_info.external_scan)
2546 			return -1;
2547 		if (wpa_s->scan_res_fail_handler) {
2548 			void (*handler)(struct wpa_supplicant *wpa_s);
2549 
2550 			handler = wpa_s->scan_res_fail_handler;
2551 			wpa_s->scan_res_fail_handler = NULL;
2552 			handler(wpa_s);
2553 		} else {
2554 			wpa_dbg(wpa_s, MSG_DEBUG,
2555 				"Failed to get scan results - try scanning again");
2556 			wpa_supplicant_req_new_scan(wpa_s, 1, 0);
2557 		}
2558 
2559 		ret = -1;
2560 		goto scan_work_done;
2561 	}
2562 
2563 #ifndef CONFIG_NO_RANDOM_POOL
2564 	num = scan_res->num;
2565 	if (num > 10)
2566 		num = 10;
2567 	for (i = 0; i < num; i++) {
2568 		u8 buf[5];
2569 		struct wpa_scan_res *res = scan_res->res[i];
2570 		buf[0] = res->bssid[5];
2571 		buf[1] = res->qual & 0xff;
2572 		buf[2] = res->noise & 0xff;
2573 		buf[3] = res->level & 0xff;
2574 		buf[4] = res->tsf & 0xff;
2575 		random_add_randomness(buf, sizeof(buf));
2576 	}
2577 #endif /* CONFIG_NO_RANDOM_POOL */
2578 
2579 	if (data) {
2580 		size_t idx;
2581 
2582 		wpa_s->last_scan_external = data->scan_info.external_scan;
2583 		wpa_s->last_scan_num_ssids = data->scan_info.num_ssids;
2584 		for (idx = 0; idx < wpa_s->last_scan_num_ssids; idx++) {
2585 			/* Copy the SSID and its length */
2586 			if (idx >= WPAS_MAX_SCAN_SSIDS ||
2587 			    data->scan_info.ssids[idx].ssid_len > SSID_MAX_LEN)
2588 				continue;
2589 
2590 			os_memcpy(wpa_s->last_scan_ssids[idx].ssid,
2591 				  data->scan_info.ssids[idx].ssid,
2592 				  data->scan_info.ssids[idx].ssid_len);
2593 			wpa_s->last_scan_ssids[idx].ssid_len =
2594 				data->scan_info.ssids[idx].ssid_len;
2595 		}
2596 	} else {
2597 		wpa_s->last_scan_external = false;
2598 		wpa_s->last_scan_num_ssids = 0;
2599 	}
2600 
2601 	if (update_only) {
2602 		ret = 1;
2603 		goto scan_work_done;
2604 	}
2605 
2606 	if (own_request && wpa_s->scan_res_handler &&
2607 	    !(data && data->scan_info.external_scan)) {
2608 		void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
2609 					 struct wpa_scan_results *scan_res);
2610 
2611 		scan_res_handler = wpa_s->scan_res_handler;
2612 		wpa_s->scan_res_handler = NULL;
2613 		scan_res_handler(wpa_s, scan_res);
2614 		ret = 1;
2615 		goto scan_work_done;
2616 	}
2617 
2618 	wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
2619 		wpa_s->own_scan_running,
2620 		data ? data->scan_info.external_scan : 0);
2621 	if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
2622 	    wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
2623 	    own_request && !(data && data->scan_info.external_scan)) {
2624 		wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
2625 			     wpa_s->manual_scan_id);
2626 		wpa_s->manual_scan_use_id = 0;
2627 	} else {
2628 		wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
2629 	}
2630 	wpas_notify_scan_results(wpa_s);
2631 
2632 	wpas_notify_scan_done(wpa_s, 1);
2633 
2634 	if (ap) {
2635 		wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
2636 #ifdef CONFIG_AP
2637 		if (wpa_s->ap_iface->scan_cb)
2638 			wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
2639 #endif /* CONFIG_AP */
2640 		goto scan_work_done;
2641 	}
2642 
2643 	if (data && data->scan_info.external_scan) {
2644 		wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
2645 		wpa_scan_results_free(scan_res);
2646 		return 0;
2647 	}
2648 
2649 	if (data && data->scan_info.aborted) {
2650 		wpa_dbg(wpa_s, MSG_DEBUG,
2651 			"Scan was aborted - do not use the incomplete scan results to trigger new operations");
2652 		goto scan_work_done;
2653 	}
2654 
2655 	if (sme_proc_obss_scan(wpa_s) > 0)
2656 		goto scan_work_done;
2657 
2658 #ifndef CONFIG_NO_RRM
2659 	if (own_request && data &&
2660 	    wpas_beacon_rep_scan_process(wpa_s, scan_res, &data->scan_info) > 0)
2661 		goto scan_work_done;
2662 #endif /* CONFIG_NO_RRM */
2663 
2664 	if (ml_link_probe_scan(wpa_s))
2665 		goto scan_work_done;
2666 
2667 	if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
2668 		goto scan_work_done;
2669 
2670 	if (autoscan_notify_scan(wpa_s, scan_res))
2671 		goto scan_work_done;
2672 
2673 	if (wpa_s->disconnected) {
2674 		wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2675 		goto scan_work_done;
2676 	}
2677 
2678 	if (!wpas_driver_bss_selection(wpa_s) &&
2679 	    bgscan_notify_scan(wpa_s, scan_res) == 1)
2680 		goto scan_work_done;
2681 
2682 	wpas_wps_update_ap_info(wpa_s, scan_res);
2683 
2684 	if (wnm_scan_process(wpa_s, false) > 0)
2685 		goto scan_work_done;
2686 
2687 	if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
2688 	    wpa_s->wpa_state < WPA_COMPLETED)
2689 		goto scan_work_done;
2690 
2691 	if (wpa_s->current_ssid && trigger_6ghz_scan && own_request && data &&
2692 	    wpas_short_ssid_match(wpa_s, scan_res)) {
2693 		wpa_dbg(wpa_s, MSG_INFO, "Short SSID match in scan results");
2694 		short_ssid_match_found = true;
2695 	}
2696 
2697 	wpa_scan_results_free(scan_res);
2698 
2699 	if (own_request && wpa_s->scan_work) {
2700 		struct wpa_radio_work *work = wpa_s->scan_work;
2701 		wpa_s->scan_work = NULL;
2702 		radio_work_done(work);
2703 	}
2704 
2705 	os_free(wpa_s->last_scan_freqs);
2706 	wpa_s->last_scan_freqs = NULL;
2707 	if (own_request && data &&
2708 	    data->scan_info.freqs && data->scan_info.num_freqs) {
2709 		wpa_s->last_scan_freqs =
2710 			os_malloc(sizeof(int) *
2711 				  (data->scan_info.num_freqs + 1));
2712 		if (wpa_s->last_scan_freqs) {
2713 			os_memcpy(wpa_s->last_scan_freqs,
2714 				  data->scan_info.freqs,
2715 				  sizeof(int) * data->scan_info.num_freqs);
2716 			wpa_s->last_scan_freqs[data->scan_info.num_freqs] = 0;
2717 		}
2718 	}
2719 
2720 	if (wpa_s->supp_pbc_active && !wpas_wps_partner_link_scan_done(wpa_s))
2721 		return ret;
2722 
2723 	if (short_ssid_match_found && wpas_trigger_6ghz_scan(wpa_s, data) > 0)
2724 		return 1;
2725 
2726 	return wpas_select_network_from_last_scan(wpa_s, 1, own_request,
2727 						  trigger_6ghz_scan, data);
2728 
2729 scan_work_done:
2730 	wpa_scan_results_free(scan_res);
2731 	if (own_request && wpa_s->scan_work) {
2732 		struct wpa_radio_work *work = wpa_s->scan_work;
2733 		wpa_s->scan_work = NULL;
2734 		radio_work_done(work);
2735 	}
2736 	return ret;
2737 }
2738 
2739 
2740 /**
2741  * Select a network from the last scan
2742  * @wpa_s: Pointer to wpa_supplicant data
2743  * @new_scan: Whether this function was called right after a scan has finished
2744  * @own_request: Whether the scan was requested by this interface
2745  * @trigger_6ghz_scan: Whether to trigger a 6ghz-only scan when applicable
2746  * @data: Scan data from scan that finished if applicable
2747  *
2748  * See _wpa_supplicant_event_scan_results() for return values.
2749  */
wpas_select_network_from_last_scan(struct wpa_supplicant * wpa_s,int new_scan,int own_request,bool trigger_6ghz_scan,union wpa_event_data * data)2750 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
2751 					      int new_scan, int own_request,
2752 					      bool trigger_6ghz_scan,
2753 					      union wpa_event_data *data)
2754 {
2755 	struct wpa_bss *selected;
2756 	struct wpa_ssid *ssid = NULL;
2757 	int time_to_reenable = wpas_reenabled_network_time(wpa_s);
2758 
2759 	if (time_to_reenable > 0) {
2760 		wpa_dbg(wpa_s, MSG_DEBUG,
2761 			"Postpone network selection by %d seconds since all networks are disabled",
2762 			time_to_reenable);
2763 		eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2764 		eloop_register_timeout(time_to_reenable, 0,
2765 				       wpas_network_reenabled, wpa_s, NULL);
2766 		return 0;
2767 	}
2768 
2769 	if (wpa_s->p2p_mgmt)
2770 		return 0; /* no normal connection on p2p_mgmt interface */
2771 
2772 	wpa_s->owe_transition_search = 0;
2773 #ifdef CONFIG_OWE
2774 	os_free(wpa_s->owe_trans_scan_freq);
2775 	wpa_s->owe_trans_scan_freq = NULL;
2776 #endif /* CONFIG_OWE */
2777 	selected = wpa_supplicant_pick_network(wpa_s, &ssid, new_scan);
2778 
2779 #ifdef CONFIG_MESH
2780 	if (wpa_s->ifmsh) {
2781 		wpa_msg(wpa_s, MSG_INFO,
2782 			"Avoiding join because we already joined a mesh group");
2783 		return 0;
2784 	}
2785 #endif /* CONFIG_MESH */
2786 
2787 	if (selected) {
2788 		int skip;
2789 		skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
2790 		if (skip) {
2791 			if (new_scan)
2792 				wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2793 			return 0;
2794 		}
2795 
2796 		wpa_s->suitable_network++;
2797 
2798 		if (ssid != wpa_s->current_ssid &&
2799 		    wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2800 			wpa_s->own_disconnect_req = 1;
2801 			wpa_supplicant_deauthenticate(
2802 				wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2803 		}
2804 
2805 		if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
2806 			wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
2807 			return -1;
2808 		}
2809 		wpa_s->supp_pbc_active = false;
2810 
2811 		if (new_scan)
2812 			wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2813 		/*
2814 		 * Do not allow other virtual radios to trigger operations based
2815 		 * on these scan results since we do not want them to start
2816 		 * other associations at the same time.
2817 		 */
2818 		return 1;
2819 	} else {
2820 		wpa_s->no_suitable_network++;
2821 		wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
2822 		ssid = wpa_supplicant_pick_new_network(wpa_s);
2823 		if (ssid) {
2824 			wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
2825 			wpa_supplicant_associate(wpa_s, NULL, ssid);
2826 			if (new_scan)
2827 				wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2828 		} else if (own_request) {
2829 			if (wpa_s->support_6ghz && trigger_6ghz_scan && data &&
2830 			    wpas_trigger_6ghz_scan(wpa_s, data) > 0)
2831 				return 1;
2832 
2833 			/*
2834 			 * No SSID found. If SCAN results are as a result of
2835 			 * own scan request and not due to a scan request on
2836 			 * another shared interface, try another scan.
2837 			 */
2838 			int timeout_sec = wpa_s->scan_interval;
2839 			int timeout_usec = 0;
2840 #ifdef CONFIG_P2P
2841 			int res;
2842 
2843 			res = wpas_p2p_scan_no_go_seen(wpa_s);
2844 			if (res == 2)
2845 				return 2;
2846 			if (res == 1)
2847 				return 0;
2848 
2849 			if (wpas_p2p_retry_limit_exceeded(wpa_s))
2850 				return 0;
2851 
2852 			if (wpa_s->p2p_in_provisioning ||
2853 			    wpa_s->show_group_started ||
2854 			    wpa_s->p2p_in_invitation) {
2855 				/*
2856 				 * Use shorter wait during P2P Provisioning
2857 				 * state and during P2P join-a-group operation
2858 				 * to speed up group formation.
2859 				 */
2860 				timeout_sec = 0;
2861 				timeout_usec = 250000;
2862 				wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2863 							    timeout_usec);
2864 				return 0;
2865 			}
2866 #endif /* CONFIG_P2P */
2867 #ifdef CONFIG_INTERWORKING
2868 			if (wpa_s->conf->auto_interworking &&
2869 			    wpa_s->conf->interworking &&
2870 			    wpa_s->conf->cred) {
2871 				wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
2872 					"start ANQP fetch since no matching "
2873 					"networks found");
2874 				wpa_s->network_select = 1;
2875 				wpa_s->auto_network_select = 1;
2876 				interworking_start_fetch_anqp(wpa_s);
2877 				return 1;
2878 			}
2879 #endif /* CONFIG_INTERWORKING */
2880 #ifdef CONFIG_WPS
2881 			if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
2882 				wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
2883 				timeout_sec = 0;
2884 				timeout_usec = 500000;
2885 				wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2886 							    timeout_usec);
2887 				return 0;
2888 			}
2889 #endif /* CONFIG_WPS */
2890 #ifdef CONFIG_OWE
2891 			if (wpa_s->owe_transition_search) {
2892 				wpa_dbg(wpa_s, MSG_DEBUG,
2893 					"OWE: Use shorter wait during transition mode search");
2894 				timeout_sec = 0;
2895 				timeout_usec = 500000;
2896 				if (wpa_s->owe_trans_scan_freq) {
2897 					os_free(wpa_s->next_scan_freqs);
2898 					wpa_s->next_scan_freqs =
2899 						wpa_s->owe_trans_scan_freq;
2900 					wpa_s->owe_trans_scan_freq = NULL;
2901 					timeout_usec = 100000;
2902 				}
2903 				wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2904 							    timeout_usec);
2905 				return 0;
2906 			}
2907 #endif /* CONFIG_OWE */
2908 			if (wpa_supplicant_req_sched_scan(wpa_s))
2909 				wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2910 							    timeout_usec);
2911 
2912 			wpa_msg_ctrl(wpa_s, MSG_INFO,
2913 				     WPA_EVENT_NETWORK_NOT_FOUND);
2914 		}
2915 	}
2916 	return 0;
2917 }
2918 
2919 
equal_scan_freq_list(struct wpa_supplicant * self,struct wpa_supplicant * other)2920 static bool equal_scan_freq_list(struct wpa_supplicant *self,
2921 				 struct wpa_supplicant *other)
2922 {
2923 	const int *list1, *list2;
2924 
2925 	list1 = self->conf->freq_list ? self->conf->freq_list :
2926 		self->last_scan_freqs;
2927 	list2 = other->conf->freq_list ? other->conf->freq_list :
2928 		other->last_scan_freqs;
2929 
2930 	return int_array_equal(list1, list2);
2931 }
2932 
2933 
wpa_supplicant_event_scan_results(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2934 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
2935 					     union wpa_event_data *data)
2936 {
2937 	struct wpa_supplicant *ifs;
2938 	int res;
2939 
2940 	res = _wpa_supplicant_event_scan_results(wpa_s, data, 1, 0);
2941 	if (res == 2) {
2942 		/*
2943 		 * Interface may have been removed, so must not dereference
2944 		 * wpa_s after this.
2945 		 */
2946 		return 1;
2947 	}
2948 
2949 	if (res < 0) {
2950 		/*
2951 		 * If no scan results could be fetched, then no need to
2952 		 * notify those interfaces that did not actually request
2953 		 * this scan. Similarly, if scan results started a new operation on this
2954 		 * interface, do not notify other interfaces to avoid concurrent
2955 		 * operations during a connection attempt.
2956 		 */
2957 		return 0;
2958 	}
2959 
2960 	/*
2961 	 * Manual scan requests are more specific to a use case than the
2962 	 * normal scan requests; hence, skip updating sibling radios.
2963 	 */
2964 	if (wpa_s->last_scan_req == MANUAL_SCAN_REQ)
2965 		return 0;
2966 
2967 	/*
2968 	 * Check other interfaces to see if they share the same radio and
2969 	 * frequency list. If so, they get updated with this same scan info.
2970 	 */
2971 	dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
2972 			 radio_list) {
2973 		if (ifs != wpa_s && equal_scan_freq_list(wpa_s, ifs)) {
2974 			wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
2975 				   "sibling", ifs->ifname);
2976 			res = _wpa_supplicant_event_scan_results(ifs, data, 0,
2977 								 res > 0);
2978 			if (res < 0)
2979 				return 0;
2980 		}
2981 	}
2982 
2983 	return 0;
2984 }
2985 
2986 #endif /* CONFIG_NO_SCAN_PROCESSING */
2987 
2988 
wpa_supplicant_fast_associate(struct wpa_supplicant * wpa_s)2989 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
2990 {
2991 #ifdef CONFIG_NO_SCAN_PROCESSING
2992 	return -1;
2993 #else /* CONFIG_NO_SCAN_PROCESSING */
2994 	struct os_reltime now;
2995 
2996 	wpa_s->ignore_post_flush_scan_res = 0;
2997 
2998 	if (wpa_s->last_scan_res_used == 0)
2999 		return -1;
3000 
3001 	os_get_reltime(&now);
3002 	if (os_reltime_expired(&now, &wpa_s->last_scan,
3003 			       wpa_s->conf->scan_res_valid_for_connect)) {
3004 		wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
3005 		return -1;
3006 	} else if (wpa_s->crossed_6ghz_dom) {
3007 		wpa_printf(MSG_DEBUG, "Fast associate: Crossed 6 GHz domain");
3008 		return -1;
3009 	}
3010 
3011 	return wpas_select_network_from_last_scan(wpa_s, 0, 1, false, NULL);
3012 #endif /* CONFIG_NO_SCAN_PROCESSING */
3013 }
3014 
3015 
wpa_wps_supplicant_fast_associate(struct wpa_supplicant * wpa_s)3016 int wpa_wps_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
3017 {
3018 #ifdef CONFIG_NO_SCAN_PROCESSING
3019 	return -1;
3020 #else /* CONFIG_NO_SCAN_PROCESSING */
3021 	return wpas_select_network_from_last_scan(wpa_s, 1, 1, false, NULL);
3022 #endif /* CONFIG_NO_SCAN_PROCESSING */
3023 }
3024 
3025 
3026 #ifdef CONFIG_WNM
3027 
wnm_bss_keep_alive(void * eloop_ctx,void * sock_ctx)3028 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
3029 {
3030 	struct wpa_supplicant *wpa_s = eloop_ctx;
3031 
3032 	if (wpa_s->wpa_state < WPA_ASSOCIATED)
3033 		return;
3034 
3035 	if (!wpa_s->no_keep_alive) {
3036 		wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
3037 			   MAC2STR(wpa_s->bssid));
3038 		/* TODO: could skip this if normal data traffic has been sent */
3039 		/* TODO: Consider using some more appropriate data frame for
3040 		 * this */
3041 		if (wpa_s->l2)
3042 			l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
3043 				       (u8 *) "", 0);
3044 	}
3045 
3046 #ifdef CONFIG_SME
3047 	if (wpa_s->sme.bss_max_idle_period) {
3048 		unsigned int msec;
3049 		msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
3050 		if (msec > 100)
3051 			msec -= 100;
3052 		eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
3053 				       wnm_bss_keep_alive, wpa_s, NULL);
3054 	}
3055 #endif /* CONFIG_SME */
3056 }
3057 
3058 
wnm_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)3059 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
3060 				   const u8 *ies, size_t ies_len)
3061 {
3062 	struct ieee802_11_elems elems;
3063 
3064 	if (ies == NULL)
3065 		return;
3066 
3067 	if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
3068 		return;
3069 
3070 #ifdef CONFIG_SME
3071 	if (elems.bss_max_idle_period) {
3072 		unsigned int msec;
3073 		wpa_s->sme.bss_max_idle_period =
3074 			WPA_GET_LE16(elems.bss_max_idle_period);
3075 		wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
3076 			   "TU)%s", wpa_s->sme.bss_max_idle_period,
3077 			   (elems.bss_max_idle_period[2] & 0x01) ?
3078 			   " (protected keep-live required)" : "");
3079 		if (wpa_s->sme.bss_max_idle_period == 0)
3080 			wpa_s->sme.bss_max_idle_period = 1;
3081 		if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
3082 			eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
3083 			 /* msec times 1000 */
3084 			msec = wpa_s->sme.bss_max_idle_period * 1024;
3085 			if (msec > 100)
3086 				msec -= 100;
3087 			eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
3088 					       wnm_bss_keep_alive, wpa_s,
3089 					       NULL);
3090 		}
3091 	} else {
3092 		wpa_s->sme.bss_max_idle_period = 0;
3093 	}
3094 #endif /* CONFIG_SME */
3095 }
3096 
3097 #endif /* CONFIG_WNM */
3098 
3099 
wnm_bss_keep_alive_deinit(struct wpa_supplicant * wpa_s)3100 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
3101 {
3102 #ifdef CONFIG_WNM
3103 	eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
3104 #endif /* CONFIG_WNM */
3105 }
3106 
3107 
wpas_qos_map_set(struct wpa_supplicant * wpa_s,const u8 * qos_map,size_t len)3108 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
3109 			    size_t len)
3110 {
3111 	int res;
3112 
3113 	wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
3114 	res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
3115 	if (res) {
3116 		wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
3117 	}
3118 
3119 	return res;
3120 }
3121 
3122 
interworking_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)3123 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
3124 					    const u8 *ies, size_t ies_len)
3125 {
3126 	struct ieee802_11_elems elems;
3127 
3128 	if (ies == NULL)
3129 		return;
3130 
3131 	if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
3132 		return;
3133 
3134 	if (elems.qos_map_set) {
3135 		wpas_qos_map_set(wpa_s, elems.qos_map_set,
3136 				 elems.qos_map_set_len);
3137 	}
3138 }
3139 
3140 
wpa_supplicant_set_4addr_mode(struct wpa_supplicant * wpa_s)3141 static void wpa_supplicant_set_4addr_mode(struct wpa_supplicant *wpa_s)
3142 {
3143 	if (wpa_s->enabled_4addr_mode) {
3144 		wpa_printf(MSG_DEBUG, "4addr mode already set");
3145 		return;
3146 	}
3147 
3148 	if (wpa_drv_set_4addr_mode(wpa_s, 1) < 0) {
3149 		wpa_msg(wpa_s, MSG_ERROR, "Failed to set 4addr mode");
3150 		goto fail;
3151 	}
3152 	wpa_s->enabled_4addr_mode = 1;
3153 	wpa_dbg(wpa_s, MSG_DEBUG, "Successfully set 4addr mode");
3154 	return;
3155 
3156 fail:
3157 	wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3158 }
3159 
3160 
multi_ap_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)3161 static void multi_ap_process_assoc_resp(struct wpa_supplicant *wpa_s,
3162 					const u8 *ies, size_t ies_len)
3163 {
3164 	struct ieee802_11_elems elems;
3165 	struct multi_ap_params multi_ap;
3166 	u16 status;
3167 
3168 	wpa_s->multi_ap_ie = 0;
3169 
3170 	if (!ies ||
3171 	    ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed ||
3172 	    !elems.multi_ap)
3173 		return;
3174 
3175 	status = check_multi_ap_ie(elems.multi_ap + 4, elems.multi_ap_len - 4,
3176 				   &multi_ap);
3177 	if (status != WLAN_STATUS_SUCCESS)
3178 		return;
3179 
3180 	wpa_s->multi_ap_backhaul = !!(multi_ap.capability &
3181 				      MULTI_AP_BACKHAUL_BSS);
3182 	wpa_s->multi_ap_fronthaul = !!(multi_ap.capability &
3183 				       MULTI_AP_FRONTHAUL_BSS);
3184 	wpa_s->multi_ap_ie = 1;
3185 }
3186 
3187 
multi_ap_set_4addr_mode(struct wpa_supplicant * wpa_s)3188 static void multi_ap_set_4addr_mode(struct wpa_supplicant *wpa_s)
3189 {
3190 	if (!wpa_s->current_ssid ||
3191 	    !wpa_s->current_ssid->multi_ap_backhaul_sta)
3192 		return;
3193 
3194 	if (!wpa_s->multi_ap_ie) {
3195 		wpa_printf(MSG_INFO,
3196 			   "AP does not include valid Multi-AP element");
3197 		goto fail;
3198 	}
3199 
3200 	if (!wpa_s->multi_ap_backhaul) {
3201 		if (wpa_s->multi_ap_fronthaul &&
3202 		    wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
3203 			wpa_printf(MSG_INFO,
3204 				   "WPS active, accepting fronthaul-only BSS");
3205 			/* Don't set 4addr mode in this case, so just return */
3206 			return;
3207 		}
3208 		wpa_printf(MSG_INFO, "AP doesn't support backhaul BSS");
3209 		goto fail;
3210 	}
3211 
3212 	wpa_supplicant_set_4addr_mode(wpa_s);
3213 	return;
3214 
3215 fail:
3216 	wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3217 }
3218 
3219 
3220 #ifdef CONFIG_FST
wpas_fst_update_mbie(struct wpa_supplicant * wpa_s,const u8 * ie,size_t ie_len)3221 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
3222 				const u8 *ie, size_t ie_len)
3223 {
3224 	struct mb_ies_info mb_ies;
3225 
3226 	if (!ie || !ie_len || !wpa_s->fst)
3227 	    return -ENOENT;
3228 
3229 	os_memset(&mb_ies, 0, sizeof(mb_ies));
3230 
3231 	while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
3232 		size_t len;
3233 
3234 		len = 2 + ie[1];
3235 		if (len > ie_len) {
3236 			wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
3237 				    ie, ie_len);
3238 			break;
3239 		}
3240 
3241 		if (ie[0] == WLAN_EID_MULTI_BAND) {
3242 			wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
3243 				   (unsigned int) len);
3244 			mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
3245 			mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
3246 			mb_ies.nof_ies++;
3247 		}
3248 
3249 		ie_len -= len;
3250 		ie += len;
3251 	}
3252 
3253 	if (mb_ies.nof_ies > 0) {
3254 		wpabuf_free(wpa_s->received_mb_ies);
3255 		wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
3256 		return 0;
3257 	}
3258 
3259 	return -ENOENT;
3260 }
3261 #endif /* CONFIG_FST */
3262 
3263 
wpa_supplicant_use_own_rsne_params(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3264 static int wpa_supplicant_use_own_rsne_params(struct wpa_supplicant *wpa_s,
3265 					      union wpa_event_data *data)
3266 {
3267 	int sel;
3268 	const u8 *p;
3269 	int l, len;
3270 	bool found = false;
3271 	struct wpa_ie_data ie;
3272 	struct wpa_ssid *ssid = wpa_s->current_ssid;
3273 	struct wpa_bss *bss = wpa_s->current_bss;
3274 	int pmf;
3275 
3276 	if (!ssid)
3277 		return 0;
3278 
3279 	p = data->assoc_info.req_ies;
3280 	l = data->assoc_info.req_ies_len;
3281 
3282 	while (p && l >= 2) {
3283 		len = p[1] + 2;
3284 		if (len > l) {
3285 			wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
3286 				    p, l);
3287 			break;
3288 		}
3289 		if (((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
3290 		      (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
3291 		     (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
3292 		      (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
3293 		     (p[0] == WLAN_EID_RSN && p[1] >= 2))) {
3294 			found = true;
3295 			break;
3296 		}
3297 		l -= len;
3298 		p += len;
3299 	}
3300 
3301 	if (!found || wpa_parse_wpa_ie(p, len, &ie) < 0) {
3302 		wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_OCV, 0);
3303 		return 0;
3304 	}
3305 
3306 	wpa_hexdump(MSG_DEBUG,
3307 		    "WPA: Update cipher suite selection based on IEs in driver-generated WPA/RSNE in AssocReq",
3308 		    p, l);
3309 
3310 	/* Update proto from (Re)Association Request frame info */
3311 	wpa_s->wpa_proto = ie.proto;
3312 	wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, wpa_s->wpa_proto);
3313 	wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED,
3314 			 !!(wpa_s->wpa_proto & WPA_PROTO_RSN));
3315 
3316 	/* Update AKMP suite from (Re)Association Request frame info */
3317 	sel = ie.key_mgmt;
3318 	if (ssid->key_mgmt)
3319 		sel &= ssid->key_mgmt;
3320 
3321 	wpa_dbg(wpa_s, MSG_DEBUG,
3322 		"WPA: AP key_mgmt 0x%x network key_mgmt 0x%x; available key_mgmt 0x%x",
3323 		ie.key_mgmt, ssid->key_mgmt, sel);
3324 	if (ie.key_mgmt && !sel) {
3325 		wpa_supplicant_deauthenticate(
3326 			wpa_s, WLAN_REASON_AKMP_NOT_VALID);
3327 		return -1;
3328 	}
3329 
3330 #ifdef CONFIG_OCV
3331 	if (((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) ||
3332 	     (wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_OCV)) && ssid->ocv)
3333 		wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_OCV,
3334 				 !!(ie.capabilities & WPA_CAPABILITY_OCVC));
3335 #endif /* CONFIG_OCV */
3336 
3337 	/*
3338 	 * Update PMK in wpa_sm and the driver if roamed to WPA/WPA2 PSK from a
3339 	 * different AKM.
3340 	 */
3341 	if (wpa_s->key_mgmt != ie.key_mgmt &&
3342 	    wpa_key_mgmt_wpa_psk_no_sae(ie.key_mgmt)) {
3343 		if (!ssid->psk_set) {
3344 			wpa_dbg(wpa_s, MSG_INFO,
3345 				"No PSK available for association");
3346 			wpas_auth_failed(wpa_s, "NO_PSK_AVAILABLE", NULL);
3347 			return -1;
3348 		}
3349 
3350 		wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN, NULL, NULL);
3351 		if (wpa_s->conf->key_mgmt_offload &&
3352 		    (wpa_s->drv_flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD) &&
3353 		    wpa_drv_set_key(wpa_s, -1, 0, NULL, 0, 0, NULL, 0,
3354 				    ssid->psk, PMK_LEN, KEY_FLAG_PMK))
3355 			wpa_dbg(wpa_s, MSG_ERROR,
3356 				"WPA: Cannot set PMK for key management offload");
3357 	}
3358 
3359 	wpa_s->key_mgmt = ie.key_mgmt;
3360 	wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
3361 	wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT %s and proto %d",
3362 		wpa_key_mgmt_txt(wpa_s->key_mgmt, wpa_s->wpa_proto),
3363 		wpa_s->wpa_proto);
3364 
3365 	/* Update pairwise cipher from (Re)Association Request frame info */
3366 	sel = ie.pairwise_cipher;
3367 	if (ssid->pairwise_cipher)
3368 		sel &= ssid->pairwise_cipher;
3369 
3370 	wpa_dbg(wpa_s, MSG_DEBUG,
3371 		"WPA: AP pairwise cipher 0x%x network pairwise cipher 0x%x; available pairwise cipher 0x%x",
3372 		ie.pairwise_cipher, ssid->pairwise_cipher, sel);
3373 	if (ie.pairwise_cipher && !sel) {
3374 		wpa_supplicant_deauthenticate(
3375 			wpa_s, WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID);
3376 		return -1;
3377 	}
3378 
3379 	wpa_s->pairwise_cipher = ie.pairwise_cipher;
3380 	wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
3381 			 wpa_s->pairwise_cipher);
3382 	wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK %s",
3383 		wpa_cipher_txt(wpa_s->pairwise_cipher));
3384 
3385 	/* Update other parameters based on AP's WPA IE/RSNE, if available */
3386 	if (!bss) {
3387 		wpa_dbg(wpa_s, MSG_DEBUG,
3388 			"WPA: current_bss == NULL - skip AP IE check");
3389 		return 0;
3390 	}
3391 
3392 	/* Update GTK and IGTK from AP's RSNE */
3393 	found = false;
3394 
3395 	if (wpa_s->wpa_proto & WPA_PROTO_RSN) {
3396 		const u8 *bss_rsn;
3397 
3398 		bss_rsn = wpa_bss_get_rsne(wpa_s, bss, ssid,
3399 					   wpa_s->valid_links);
3400 		if (bss_rsn) {
3401 			p = bss_rsn;
3402 			len = 2 + bss_rsn[1];
3403 			found = true;
3404 		}
3405 	} else if (wpa_s->wpa_proto & WPA_PROTO_WPA) {
3406 		const u8 *bss_wpa;
3407 
3408 		bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
3409 		if (bss_wpa) {
3410 			p = bss_wpa;
3411 			len = 2 + bss_wpa[1];
3412 			found = true;
3413 		}
3414 	}
3415 
3416 	if (!found || wpa_parse_wpa_ie(p, len, &ie) < 0)
3417 		return 0;
3418 
3419 	pmf = wpas_get_ssid_pmf(wpa_s, ssid);
3420 	if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
3421 	    pmf == MGMT_FRAME_PROTECTION_REQUIRED) {
3422 		/* AP does not support MFP, local configuration requires it */
3423 		wpa_supplicant_deauthenticate(
3424 			wpa_s, WLAN_REASON_INVALID_RSN_IE_CAPAB);
3425 		return -1;
3426 	}
3427 	if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
3428 	    pmf == NO_MGMT_FRAME_PROTECTION) {
3429 		/* AP requires MFP, local configuration disables it */
3430 		wpa_supplicant_deauthenticate(
3431 			wpa_s, WLAN_REASON_INVALID_RSN_IE_CAPAB);
3432 		return -1;
3433 	}
3434 
3435 	/* Update PMF from local configuration now that MFP validation was done
3436 	 * above */
3437 	wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, pmf);
3438 
3439 	/* Update GTK from AP's RSNE */
3440 	sel = ie.group_cipher;
3441 	if (ssid->group_cipher)
3442 		sel &= ssid->group_cipher;
3443 
3444 	wpa_dbg(wpa_s, MSG_DEBUG,
3445 		"WPA: AP group cipher 0x%x network group cipher 0x%x; available group cipher 0x%x",
3446 		ie.group_cipher, ssid->group_cipher, sel);
3447 	if (ie.group_cipher && !sel) {
3448 		wpa_supplicant_deauthenticate(
3449 			wpa_s, WLAN_REASON_GROUP_CIPHER_NOT_VALID);
3450 		return -1;
3451 	}
3452 
3453 	wpa_s->group_cipher = ie.group_cipher;
3454 	wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
3455 	wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK %s",
3456 		wpa_cipher_txt(wpa_s->group_cipher));
3457 
3458 	/* Update IGTK from AP RSN IE */
3459 	sel = ie.mgmt_group_cipher;
3460 	if (ssid->group_mgmt_cipher)
3461 		sel &= ssid->group_mgmt_cipher;
3462 
3463 	wpa_dbg(wpa_s, MSG_DEBUG,
3464 		"WPA: AP mgmt_group_cipher 0x%x network mgmt_group_cipher 0x%x; available mgmt_group_cipher 0x%x",
3465 		ie.mgmt_group_cipher, ssid->group_mgmt_cipher, sel);
3466 
3467 	if (pmf == NO_MGMT_FRAME_PROTECTION ||
3468 	    !(ie.capabilities & WPA_CAPABILITY_MFPC)) {
3469 		wpa_dbg(wpa_s, MSG_DEBUG,
3470 			"WPA: STA/AP is not MFP capable; AP RSNE caps 0x%x",
3471 			ie.capabilities);
3472 		ie.mgmt_group_cipher = 0;
3473 	}
3474 
3475 	if (ie.mgmt_group_cipher && !sel) {
3476 		wpa_supplicant_deauthenticate(
3477 			wpa_s, WLAN_REASON_CIPHER_SUITE_REJECTED);
3478 		return -1;
3479 	}
3480 
3481 	wpa_s->mgmt_group_cipher = ie.mgmt_group_cipher;
3482 	wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
3483 			 wpa_s->mgmt_group_cipher);
3484 	if (wpa_s->mgmt_group_cipher)
3485 		wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher %s",
3486 			wpa_cipher_txt(wpa_s->mgmt_group_cipher));
3487 	else
3488 		wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher");
3489 
3490 	return 0;
3491 }
3492 
3493 
wpas_parse_connection_info_link(struct wpa_supplicant * wpa_s,int i,struct ieee802_11_elems * req_elems,struct ieee802_11_elems * resp_elems,struct wpabuf * req_mlbuf,struct wpabuf * resp_mlbuf)3494 static void wpas_parse_connection_info_link(struct wpa_supplicant *wpa_s,
3495 					    int i,
3496 					    struct ieee802_11_elems *req_elems,
3497 					    struct ieee802_11_elems *resp_elems,
3498 					    struct wpabuf *req_mlbuf,
3499 					    struct wpabuf *resp_mlbuf)
3500 {
3501 	struct ieee802_11_elems req_persta_elems = *req_elems;
3502 	struct ieee802_11_elems resp_persta_elems = *resp_elems;
3503 	struct supported_chan_width sta_cw;
3504 	enum chan_width ap_cw;
3505 
3506 	if (ieee802_11_parse_link_assoc_req(&req_persta_elems, req_mlbuf, i,
3507 					    true) == ParseFailed ||
3508 	    ieee802_11_parse_link_assoc_resp(&resp_persta_elems, resp_mlbuf, i,
3509 					     true) == ParseFailed) {
3510 		wpa_s->links[i].max_nss_rx = wpa_s->connection_max_nss_rx;
3511 		wpa_s->links[i].max_nss_tx = wpa_s->connection_max_nss_tx;
3512 		wpa_s->links[i].channel_bandwidth =
3513 			wpa_s->connection_channel_bandwidth;
3514 		return;
3515 	}
3516 
3517 	sta_cw = get_supported_channel_width(&req_persta_elems,
3518 					     wpa_s->links[i].freq);
3519 	ap_cw = get_operation_channel_width(&resp_persta_elems);
3520 
3521 	if (wpa_s->connection_vht || wpa_s->connection_he ||
3522 	    wpa_s->connection_eht) {
3523 		wpa_s->links[i].channel_bandwidth =
3524 			get_sta_operation_chan_width(ap_cw, sta_cw);
3525 	} else if (wpa_s->connection_ht) {
3526 		wpa_s->links[i].channel_bandwidth = (ap_cw == CHAN_WIDTH_40) ?
3527 			CHAN_WIDTH_40 : CHAN_WIDTH_20;
3528 	} else {
3529 		wpa_s->links[i].channel_bandwidth = CHAN_WIDTH_20;
3530 	}
3531 
3532 	wpa_s->links[i].max_nss_rx =
3533 		MIN(get_max_nss_capability(&req_persta_elems, true,
3534 					   wpa_s->links[i].channel_bandwidth),
3535 		    get_max_nss_capability(&resp_persta_elems, false,
3536 					   wpa_s->links[i].channel_bandwidth));
3537 
3538 	wpa_s->links[i].max_nss_tx =
3539 		MIN(get_max_nss_capability(&req_persta_elems, false,
3540 					   wpa_s->links[i].channel_bandwidth),
3541 		    get_max_nss_capability(&resp_persta_elems, true,
3542 					   wpa_s->links[i].channel_bandwidth));
3543 
3544 }
3545 
3546 
wpas_parse_connection_info(struct wpa_supplicant * wpa_s,unsigned int freq,const u8 * req_ies,size_t req_ies_len,const u8 * resp_ies,size_t resp_ies_len)3547 static void wpas_parse_connection_info(struct wpa_supplicant *wpa_s,
3548 				       unsigned int freq,
3549 				       const u8 *req_ies, size_t req_ies_len,
3550 				       const u8 *resp_ies, size_t resp_ies_len)
3551 {
3552 	struct ieee802_11_elems req_elems, resp_elems;
3553 	int max_nss_rx_req, max_nss_rx_resp, max_nss_tx_req, max_nss_tx_resp;
3554 	struct supported_chan_width sta_supported_chan_width;
3555 	enum chan_width ap_operation_chan_width;
3556 	struct wpabuf *req_mlbuf, *resp_mlbuf;
3557 
3558 	wpa_s->connection_set = 0;
3559 
3560 	if (!req_ies || !resp_ies ||
3561 	    ieee802_11_parse_elems(req_ies, req_ies_len, &req_elems, 0) ==
3562 	    ParseFailed ||
3563 	    ieee802_11_parse_elems(resp_ies, resp_ies_len, &resp_elems, 0) ==
3564 	    ParseFailed)
3565 		return;
3566 
3567 	wpa_s->connection_set = 1;
3568 	wpa_s->connection_ht = req_elems.ht_capabilities &&
3569 		resp_elems.ht_capabilities;
3570 
3571 	/* Do not include subset of VHT on 2.4 GHz vendor extension in
3572 	 * consideration for reporting VHT association. */
3573 	wpa_s->connection_vht = req_elems.vht_capabilities &&
3574 		resp_elems.vht_capabilities &&
3575 		(!freq || wpas_freq_to_band(freq) != BAND_2_4_GHZ);
3576 	wpa_s->connection_he = req_elems.he_capabilities &&
3577 		resp_elems.he_capabilities;
3578 	wpa_s->connection_eht = req_elems.eht_capabilities &&
3579 		resp_elems.eht_capabilities;
3580 	if (req_elems.rrm_enabled)
3581 		wpa_s->rrm.rrm_used = 1;
3582 
3583 #ifdef CONFIG_PMKSA_PRIVACY
3584 	if (wpa_s->assoc_resp_encrypted && resp_elems.nonce) {
3585 		os_memcpy(wpa_s->pmkid_anonce, resp_elems.nonce, NONCE_LEN);
3586 		wpa_s->pmkid_anonce_set = true;
3587 		wpa_hexdump(MSG_DEBUG,
3588 			    "PMKID privacy: ANonce in Assoc Response",
3589 			    wpa_s->pmkid_anonce, NONCE_LEN);
3590 	}
3591 	if (wpa_s->assoc_resp_encrypted && req_elems.nonce) {
3592 		os_memcpy(wpa_s->pmkid_snonce, req_elems.nonce, NONCE_LEN);
3593 		wpa_s->pmkid_snonce_set = true;
3594 		wpa_hexdump(MSG_DEBUG,
3595 			    "PMKID privacy: SNonce in Assoc Request",
3596 			    wpa_s->pmkid_snonce, NONCE_LEN);
3597 	}
3598 #endif /* CONFIG_PMKSA_PRIVACY */
3599 
3600 	sta_supported_chan_width = get_supported_channel_width(&req_elems,
3601 							       freq);
3602 	ap_operation_chan_width = get_operation_channel_width(&resp_elems);
3603 	if (wpa_s->connection_vht || wpa_s->connection_he ||
3604 	    wpa_s->connection_eht) {
3605 		wpa_s->connection_channel_bandwidth =
3606 			get_sta_operation_chan_width(ap_operation_chan_width,
3607 						     sta_supported_chan_width);
3608 	} else if (wpa_s->connection_ht) {
3609 		wpa_s->connection_channel_bandwidth =
3610 			ap_operation_chan_width == CHAN_WIDTH_40 ?
3611 			CHAN_WIDTH_40 : CHAN_WIDTH_20;
3612 	} else {
3613 		wpa_s->connection_channel_bandwidth = CHAN_WIDTH_20;
3614 	}
3615 
3616 	max_nss_rx_req = get_max_nss_capability(
3617 		&req_elems, 1, wpa_s->connection_channel_bandwidth);
3618 	max_nss_rx_resp = get_max_nss_capability(
3619 		&resp_elems, 1, wpa_s->connection_channel_bandwidth);
3620 	max_nss_tx_req = get_max_nss_capability(
3621 		&req_elems, 0, wpa_s->connection_channel_bandwidth);
3622 	max_nss_tx_resp = get_max_nss_capability(
3623 		&resp_elems, 0, wpa_s->connection_channel_bandwidth);
3624 
3625 	wpa_s->connection_max_nss_rx = MIN(max_nss_tx_resp, max_nss_rx_req);
3626 	wpa_s->connection_max_nss_tx = MIN(max_nss_rx_resp, max_nss_tx_req);
3627 
3628 	req_mlbuf = ieee802_11_defrag(req_elems.basic_mle,
3629 				      req_elems.basic_mle_len, true);
3630 	resp_mlbuf = ieee802_11_defrag(resp_elems.basic_mle,
3631 				       resp_elems.basic_mle_len, true);
3632 	if (req_mlbuf && resp_mlbuf) {
3633 		int i;
3634 
3635 		for_each_link(wpa_s->valid_links, i) {
3636 			struct wpabuf *req_copy, *resp_copy;
3637 
3638 			/*
3639 			 * ieee802_11_parse_link_profile() may defragment the
3640 			 * Multi-Link element subelements in-place, modifying
3641 			 * the buffer contents. Parse a fresh copy for each link
3642 			 * so that one link's defragmentation does not corrupt
3643 			 * the buffer used when parsing the remaining links.
3644 			 */
3645 			req_copy = wpabuf_dup(req_mlbuf);
3646 			resp_copy = wpabuf_dup(resp_mlbuf);
3647 			if (req_copy && resp_copy)
3648 				wpas_parse_connection_info_link(
3649 					wpa_s, i, &req_elems, &resp_elems,
3650 					req_copy, resp_copy);
3651 			wpabuf_free(req_copy);
3652 			wpabuf_free(resp_copy);
3653 		}
3654 	}
3655 	wpabuf_free(req_mlbuf);
3656 	wpabuf_free(resp_mlbuf);
3657 }
3658 
3659 
3660 #ifdef CONFIG_P2P
3661 
is_assisted_dfs_p2p_allowed_cc(const char * country)3662 static bool is_assisted_dfs_p2p_allowed_cc(const char *country)
3663 {
3664 	return country[0] == 'U' && country[1] == 'S';
3665 }
3666 
3667 
is_assisted_p2p_dfs_allowed(struct wpa_supplicant * wpa_s,struct wpa_bss * bss)3668 static bool is_assisted_p2p_dfs_allowed(struct wpa_supplicant *wpa_s,
3669 					struct wpa_bss *bss)
3670 {
3671 	const u8 *elem;
3672 	const char *country;
3673 
3674 	if (wpa_s->hw_dfs_domain != HOSTAPD_DFS_REGION_FCC ||
3675 	    !wpa_s->device_country_set)
3676 		return false;
3677 
3678 	/* Country IE (alpha2 at first two bytes of the payload) */
3679 	elem = wpa_bss_get_ie(bss, WLAN_EID_COUNTRY);
3680 	if (!elem || elem[1] < 2)
3681 		return false;
3682 
3683 	country = (const char *) (elem + 2);
3684 
3685 	/* Require the BSS country to match the device country */
3686 	if (country[0] != wpa_s->device_country[0] ||
3687 	    country[1] != wpa_s->device_country[1])
3688 		return false;
3689 
3690 	return is_assisted_dfs_p2p_allowed_cc(country);
3691 }
3692 
3693 
is_dfs_owner_ap(struct wpa_supplicant * wpa_s,struct wpa_bss * bss)3694 static bool is_dfs_owner_ap(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
3695 {
3696 	if (!bss)
3697 		return false;
3698 
3699 	/* Must NOT have P2P IE (not a P2P GO) */
3700 	if (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
3701 	    wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE))
3702 		return false;
3703 
3704 	/* Must be an infrastructure mode connection, not P2P group */
3705 	if (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group)
3706 		return false;
3707 
3708 	/* Beacon interval of the connected DFS AP needs to be short enough to
3709 	 * have time to inform P2P clients about the need to vacate the
3710 	 * operating channel within regulatory requirements. */
3711 	if (bss->beacon_int == 0 || bss->beacon_int > 100)
3712 		return false;
3713 
3714 	return true;
3715 }
3716 
3717 #endif /* CONFIG_P2P */
3718 
3719 
3720 #ifdef CONFIG_ENC_ASSOC
wpas_rx_enc_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * aa,const u8 * resp_ies,size_t resp_ies_len)3721 static int wpas_rx_enc_assoc_resp(struct wpa_supplicant *wpa_s, const u8 *aa,
3722 				  const u8 *resp_ies, size_t resp_ies_len)
3723 {
3724 	struct ptksa_cache_entry *entry;
3725 
3726 	entry = ptksa_cache_get(wpa_s->ptksa, aa, wpa_s->pairwise_cipher);
3727 	if (!entry || (entry->auth_alg != WLAN_AUTH_EPPKE &&
3728 		       entry->auth_alg != WLAN_AUTH_802_1X))
3729 		return 0;
3730 
3731 	wpa_sm_set_ptk_kck_kek(wpa_s->wpa, entry->ptk.hash_alg,
3732 			       entry->ptk.kck, entry->ptk.kck_len,
3733 			       entry->ptk.kek, entry->ptk.kek_len);
3734 
3735 #ifdef CONFIG_TESTING_OPTIONS
3736 	wpa_sm_set_ptk_tk(wpa_s->wpa, entry->ptk.tk, entry->ptk.tk_len);
3737 #endif /* CONFIG_TESTING_OPTIONS */
3738 
3739 	return process_encrypted_assoc_resp(wpa_s->wpa,
3740 					    ((wpa_s->drv_flags2 &
3741 					      WPA_DRIVER_FLAGS2_MLO) &&
3742 					     wpa_s->valid_links) ?
3743 					    wpa_s->valid_links : -1,
3744 					    resp_ies, resp_ies_len);
3745 }
3746 #endif /* CONFIG_ENC_ASSOC */
3747 
3748 
wpa_supplicant_event_associnfo(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3749 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
3750 					  union wpa_event_data *data)
3751 {
3752 	int l, len, found = 0, wpa_found, rsn_found;
3753 #ifndef CONFIG_NO_WPA
3754 	int found_x = 0;
3755 #endif /* CONFIG_NO_WPA */
3756 	const u8 *p, *ie;
3757 	u8 bssid[ETH_ALEN];
3758 	bool bssid_known;
3759 	enum wpa_rsn_override rsn_override;
3760 
3761 	wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
3762 	wpa_s->ssid_verified = false;
3763 	wpa_s->bigtk_set = false;
3764 #ifdef CONFIG_ENC_ASSOC
3765 	/*
3766 	 * For SME-in-wpa_supplicant, check the Protected bit in the frame
3767 	 * header. For SME-in-driver, the full frame is not available, so use
3768 	 * the assoc_encrypted flag indicated by the driver instead.
3769 	 */
3770 	if ((data->assoc_info.resp_frame &&
3771 	     data->assoc_info.resp_frame_len >= 2 &&
3772 	     (WPA_GET_LE16(data->assoc_info.resp_frame) & WLAN_FC_PROTECTED)) ||
3773 	    (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
3774 	     data->assoc_info.assoc_encrypted)) {
3775 		wpa_printf(MSG_INFO, "Association Response frame is encrypted");
3776 		wpa_s->assoc_resp_encrypted = true;
3777 	} else {
3778 		wpa_s->assoc_resp_encrypted = false;
3779 	}
3780 #endif /* CONFIG_ENC_ASSOC */
3781 #ifdef CONFIG_SAE
3782 #ifdef CONFIG_SME
3783 	/* SAE H2E binds the SSID into PT and that verifies the SSID
3784 	 * implicitly. */
3785 	if (wpa_s->sme.sae.state == SAE_ACCEPTED && wpa_s->sme.sae.h2e)
3786 		wpa_s->ssid_verified = true;
3787 #endif /* CONFIG_SME */
3788 #endif /* CONFIG_SAE */
3789 	bssid_known = wpa_drv_get_bssid(wpa_s, bssid) == 0;
3790 	if (data->assoc_info.req_ies)
3791 		wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
3792 			    data->assoc_info.req_ies_len);
3793 	if (data->assoc_info.resp_ies) {
3794 		wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
3795 			    data->assoc_info.resp_ies_len);
3796 #ifdef CONFIG_TDLS
3797 		wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
3798 					data->assoc_info.resp_ies_len);
3799 #endif /* CONFIG_TDLS */
3800 #ifdef CONFIG_WNM
3801 		wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
3802 				       data->assoc_info.resp_ies_len);
3803 #endif /* CONFIG_WNM */
3804 		interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
3805 						data->assoc_info.resp_ies_len);
3806 		if ((wpa_s->hw_capab & BIT(CAPAB_VHT)) &&
3807 		    get_ie(data->assoc_info.resp_ies,
3808 			   data->assoc_info.resp_ies_len, WLAN_EID_VHT_CAP))
3809 			wpa_s->ieee80211ac = 1;
3810 
3811 		multi_ap_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
3812 					    data->assoc_info.resp_ies_len);
3813 	}
3814 	if (data->assoc_info.beacon_ies)
3815 		wpa_hexdump(MSG_DEBUG, "beacon_ies",
3816 			    data->assoc_info.beacon_ies,
3817 			    data->assoc_info.beacon_ies_len);
3818 	if (data->assoc_info.freq)
3819 		wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
3820 			data->assoc_info.freq);
3821 
3822 	wpas_parse_connection_info(wpa_s, data->assoc_info.freq,
3823 				   data->assoc_info.req_ies,
3824 				   data->assoc_info.req_ies_len,
3825 				   data->assoc_info.resp_ies,
3826 				   data->assoc_info.resp_ies_len);
3827 
3828 	p = data->assoc_info.req_ies;
3829 	l = data->assoc_info.req_ies_len;
3830 
3831 	/* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
3832 	while (p && l >= 2) {
3833 		len = p[1] + 2;
3834 		if (len > l) {
3835 			wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
3836 				    p, l);
3837 			break;
3838 		}
3839 		if (!found &&
3840 		    ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
3841 		      (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
3842 		     (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
3843 		      (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
3844 		     (p[0] == WLAN_EID_RSN && p[1] >= 2))) {
3845 			if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
3846 				break;
3847 			found = 1;
3848 			wpa_find_assoc_pmkid(wpa_s);
3849 		}
3850 #ifndef CONFIG_NO_WPA
3851 		if (!found_x && p[0] == WLAN_EID_RSNX) {
3852 			if (wpa_sm_set_assoc_rsnxe(wpa_s->wpa, p, len))
3853 				break;
3854 			found_x = 1;
3855 		}
3856 #endif /* CONFIG_NO_WPA */
3857 		l -= len;
3858 		p += len;
3859 	}
3860 	if (!found && data->assoc_info.req_ies)
3861 		wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
3862 #ifndef CONFIG_NO_WPA
3863 	if (!found_x && data->assoc_info.req_ies)
3864 		wpa_sm_set_assoc_rsnxe(wpa_s->wpa, NULL, 0);
3865 #endif /* CONFIG_NO_WPA */
3866 
3867 	rsn_override = RSN_OVERRIDE_NOT_USED;
3868 	ie = get_vendor_ie(data->assoc_info.req_ies,
3869 			   data->assoc_info.req_ies_len,
3870 			   RSN_SELECTION_IE_VENDOR_TYPE);
3871 	if (ie && ie[1] >= 4 + 1) {
3872 		switch (ie[2 + 4]) {
3873 		case RSN_SELECTION_RSNE:
3874 			rsn_override = RSN_OVERRIDE_RSNE;
3875 			break;
3876 		case RSN_SELECTION_RSNE_OVERRIDE:
3877 			rsn_override = RSN_OVERRIDE_RSNE_OVERRIDE;
3878 			break;
3879 		case RSN_SELECTION_RSNE_OVERRIDE_2:
3880 			rsn_override = RSN_OVERRIDE_RSNE_OVERRIDE_2;
3881 			break;
3882 		}
3883 	}
3884 	wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_OVERRIDE, rsn_override);
3885 
3886 #ifdef CONFIG_FILS
3887 #ifdef CONFIG_SME
3888 	if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS ||
3889 	    wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS_SK_PFS) {
3890 		if (!data->assoc_info.resp_frame ||
3891 		    fils_process_assoc_resp(wpa_s->wpa,
3892 					    data->assoc_info.resp_frame,
3893 					    data->assoc_info.resp_frame_len) <
3894 		    0) {
3895 			wpa_supplicant_deauthenticate(wpa_s,
3896 						      WLAN_REASON_UNSPECIFIED);
3897 			return -1;
3898 		}
3899 
3900 		/* FILS use of an AEAD cipher include the SSID element in
3901 		 * (Re)Association Request frame in the AAD and since the AP
3902 		 * accepted that, the SSID was verified. */
3903 		wpa_s->ssid_verified = true;
3904 	}
3905 #endif /* CONFIG_SME */
3906 
3907 	/* Additional processing for FILS when SME is in driver */
3908 	if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS &&
3909 	    !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
3910 		wpa_sm_set_reset_fils_completed(wpa_s->wpa, 1);
3911 #endif /* CONFIG_FILS */
3912 
3913 #ifdef CONFIG_ENC_ASSOC
3914 	if (wpa_s->assoc_resp_encrypted &&
3915 	    (wpa_s->drv_flags2 &
3916 	     WPA_DRIVER_FLAGS2_ASSOCIATION_FRAME_ENCRYPTION) &&
3917 	    wpas_rx_enc_assoc_resp(wpa_s, wpa_s->valid_links ?
3918 				   wpa_s->ap_mld_addr : bssid,
3919 				   data->assoc_info.resp_ies,
3920 				   data->assoc_info.resp_ies_len) < 0) {
3921 		wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
3922 		return -1;
3923 	}
3924 #endif /* CONFIG_ENC_ASSOC */
3925 
3926 #ifdef CONFIG_OWE
3927 	if (wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
3928 	    !(wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_OWE_OFFLOAD_STA) &&
3929 	    (!bssid_known ||
3930 	     owe_process_assoc_resp(wpa_s->wpa,
3931 				    wpa_s->valid_links ?
3932 				    wpa_s->ap_mld_addr : bssid,
3933 				    data->assoc_info.resp_ies,
3934 				    data->assoc_info.resp_ies_len) < 0)) {
3935 		wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
3936 		return -1;
3937 	}
3938 #endif /* CONFIG_OWE */
3939 
3940 #ifdef CONFIG_DPP2
3941 	wpa_sm_set_dpp_z(wpa_s->wpa, NULL);
3942 	if (DPP_VERSION > 1 && wpa_s->key_mgmt == WPA_KEY_MGMT_DPP &&
3943 	    wpa_s->dpp_pfs) {
3944 		struct ieee802_11_elems elems;
3945 
3946 		if (ieee802_11_parse_elems(data->assoc_info.resp_ies,
3947 					   data->assoc_info.resp_ies_len,
3948 					   &elems, 0) == ParseFailed ||
3949 		    !elems.owe_dh)
3950 			goto no_pfs;
3951 		if (dpp_pfs_process(wpa_s->dpp_pfs, elems.owe_dh,
3952 				    elems.owe_dh_len) < 0) {
3953 			wpa_supplicant_deauthenticate(wpa_s,
3954 						      WLAN_REASON_UNSPECIFIED);
3955 			return -1;
3956 		}
3957 
3958 		wpa_sm_set_dpp_z(wpa_s->wpa, wpa_s->dpp_pfs->secret);
3959 	}
3960 no_pfs:
3961 #endif /* CONFIG_DPP2 */
3962 
3963 #ifdef CONFIG_IEEE80211R
3964 #ifdef CONFIG_SME
3965 	if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
3966 		if (!bssid_known ||
3967 		    wpa_ft_validate_reassoc_resp(wpa_s->wpa,
3968 						 data->assoc_info.resp_ies,
3969 						 data->assoc_info.resp_ies_len,
3970 						 bssid) < 0) {
3971 			wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
3972 				"Reassociation Response failed");
3973 			wpa_supplicant_deauthenticate(
3974 				wpa_s, WLAN_REASON_INVALID_IE);
3975 			return -1;
3976 		}
3977 		/* SSID is included in PMK-R0 derivation, so it is verified
3978 		 * implicitly. */
3979 		wpa_s->ssid_verified = true;
3980 	}
3981 
3982 	p = data->assoc_info.resp_ies;
3983 	l = data->assoc_info.resp_ies_len;
3984 
3985 #ifdef CONFIG_WPS_STRICT
3986 	if (p && wpa_s->current_ssid &&
3987 	    wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
3988 		struct wpabuf *wps;
3989 		wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
3990 		if (wps == NULL) {
3991 			wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
3992 				"include WPS IE in (Re)Association Response");
3993 			return -1;
3994 		}
3995 
3996 		if (wps_validate_assoc_resp(wps) < 0) {
3997 			wpabuf_free(wps);
3998 			wpa_supplicant_deauthenticate(
3999 				wpa_s, WLAN_REASON_INVALID_IE);
4000 			return -1;
4001 		}
4002 		wpabuf_free(wps);
4003 	}
4004 #endif /* CONFIG_WPS_STRICT */
4005 
4006 	/* Go through the IEs and make a copy of the MDIE, if present. */
4007 	while (p && l >= 2) {
4008 		len = p[1] + 2;
4009 		if (len > l) {
4010 			wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
4011 				    p, l);
4012 			break;
4013 		}
4014 		if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
4015 		    p[1] >= MOBILITY_DOMAIN_ID_LEN) {
4016 			wpa_s->sme.ft_used = 1;
4017 			os_memcpy(wpa_s->sme.mobility_domain, p + 2,
4018 				  MOBILITY_DOMAIN_ID_LEN);
4019 			break;
4020 		}
4021 		l -= len;
4022 		p += len;
4023 	}
4024 #endif /* CONFIG_SME */
4025 
4026 	/* Process FT when SME is in the driver */
4027 	if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
4028 	    wpa_ft_is_completed(wpa_s->wpa)) {
4029 		if (!bssid_known ||
4030 		    wpa_ft_validate_reassoc_resp(wpa_s->wpa,
4031 						 data->assoc_info.resp_ies,
4032 						 data->assoc_info.resp_ies_len,
4033 						 bssid) < 0) {
4034 			wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
4035 				"Reassociation Response failed");
4036 			wpa_supplicant_deauthenticate(
4037 				wpa_s, WLAN_REASON_INVALID_IE);
4038 			return -1;
4039 		}
4040 		wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
4041 		/* SSID is included in PMK-R0 derivation, so it is verified
4042 		 * implicitly. */
4043 		wpa_s->ssid_verified = true;
4044 	}
4045 
4046 	wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
4047 			     data->assoc_info.resp_ies_len);
4048 #endif /* CONFIG_IEEE80211R */
4049 
4050 #ifndef CONFIG_NO_ROBUST_AV
4051 	if (bssid_known)
4052 		wpas_handle_assoc_resp_mscs(wpa_s, bssid,
4053 					    data->assoc_info.resp_ies,
4054 					    data->assoc_info.resp_ies_len);
4055 #endif /* CONFIG_NO_ROBUST_AV */
4056 
4057 	/* WPA/RSN IE from Beacon/ProbeResp */
4058 	p = data->assoc_info.beacon_ies;
4059 	l = data->assoc_info.beacon_ies_len;
4060 
4061 	/* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
4062 	 */
4063 	wpa_found = rsn_found = 0;
4064 	while (p && l >= 2) {
4065 		len = p[1] + 2;
4066 		if (len > l) {
4067 			wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
4068 				    p, l);
4069 			break;
4070 		}
4071 		if (!wpa_found &&
4072 		    p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
4073 		    os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
4074 			wpa_found = 1;
4075 			wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
4076 		}
4077 
4078 		if (!rsn_found &&
4079 		    p[0] == WLAN_EID_RSN && p[1] >= 2) {
4080 			rsn_found = 1;
4081 			wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
4082 		}
4083 
4084 		if (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
4085 		    WPA_GET_BE32(&p[2]) == RSNE_OVERRIDE_2_IE_VENDOR_TYPE)
4086 			wpa_sm_set_ap_rsne_override_2(wpa_s->wpa, p, len);
4087 
4088 		if (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
4089 		    WPA_GET_BE32(&p[2]) == RSNE_OVERRIDE_IE_VENDOR_TYPE)
4090 			wpa_sm_set_ap_rsne_override(wpa_s->wpa, p, len);
4091 
4092 		if (p[0] == WLAN_EID_RSNX && p[1] >= 1)
4093 			wpa_sm_set_ap_rsnxe(wpa_s->wpa, p, len);
4094 
4095 		if (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 5 &&
4096 		    WPA_GET_BE32(&p[2]) == RSNXE_OVERRIDE_IE_VENDOR_TYPE)
4097 			wpa_sm_set_ap_rsnxe_override(wpa_s->wpa, p, len);
4098 
4099 		l -= len;
4100 		p += len;
4101 	}
4102 
4103 	if (!wpa_found && data->assoc_info.beacon_ies)
4104 		wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
4105 	if (!rsn_found && data->assoc_info.beacon_ies) {
4106 		wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
4107 		wpa_sm_set_ap_rsnxe(wpa_s->wpa, NULL, 0);
4108 		wpa_sm_set_ap_rsne_override(wpa_s->wpa, NULL, 0);
4109 		wpa_sm_set_ap_rsne_override_2(wpa_s->wpa, NULL, 0);
4110 		wpa_sm_set_ap_rsnxe_override(wpa_s->wpa, NULL, 0);
4111 	}
4112 	if (wpa_found || rsn_found)
4113 		wpa_s->ap_ies_from_associnfo = 1;
4114 
4115 	if (wpa_s->assoc_freq && data->assoc_info.freq) {
4116 		struct wpa_bss *bss;
4117 		unsigned int freq = 0;
4118 
4119 		if (bssid_known) {
4120 			bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
4121 			if (bss)
4122 				freq = bss->freq;
4123 		}
4124 		if (freq != data->assoc_info.freq) {
4125 			wpa_printf(MSG_DEBUG,
4126 				   "Operating frequency changed from %u to %u MHz",
4127 				   wpa_s->assoc_freq, data->assoc_info.freq);
4128 			wpa_supplicant_update_scan_results(wpa_s, bssid);
4129 		}
4130 	}
4131 
4132 	wpa_s->assoc_freq = data->assoc_info.freq;
4133 
4134 #ifdef CONFIG_P2P
4135 	if (wpa_s->allow_p2p_assisted_dfs &&
4136 	    ieee80211_is_dfs(wpa_s->assoc_freq, wpa_s->hw.modes,
4137 			     wpa_s->hw.num_modes)) {
4138 		struct wpa_bss *bss = NULL;
4139 
4140 		if (bssid_known)
4141 			bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
4142 
4143 		if (bss && is_assisted_p2p_dfs_allowed(wpa_s, bss) &&
4144 		    is_dfs_owner_ap(wpa_s, bss)) {
4145 			enum chan_width ap_operation_chan_width =
4146 				CHAN_WIDTH_UNKNOWN;
4147 			struct ieee802_11_elems resp_elems_local;
4148 
4149 			/* Parse resp_ies locally to extract AP operation
4150 			 * channel width */
4151 			if (data->assoc_info.resp_ies &&
4152 			    ieee802_11_parse_elems(
4153 				    data->assoc_info.resp_ies,
4154 				    data->assoc_info.resp_ies_len,
4155 				    &resp_elems_local, 0) != ParseFailed)
4156 				ap_operation_chan_width =
4157 					get_operation_channel_width(
4158 						&resp_elems_local);
4159 
4160 			wpa_s->assisted_dfs = true;
4161 			wpas_update_dfs_ap_info(wpa_s, wpa_s->assoc_freq,
4162 						ap_operation_chan_width, false);
4163 		}
4164 	} else if (wpa_s->allow_p2p_assisted_dfs && wpa_s->valid_links) {
4165 		/* For MLO, check other links as well for DFS */
4166 		int i;
4167 
4168 		for_each_link(wpa_s->valid_links, i) {
4169 			struct wpa_bss *link_bss;
4170 
4171 			if (wpa_s->links[i].freq == wpa_s->assoc_freq)
4172 				continue;
4173 
4174 			if (ieee80211_is_dfs(wpa_s->links[i].freq,
4175 					     wpa_s->hw.modes,
4176 					     wpa_s->hw.num_modes)) {
4177 				link_bss = wpa_s->links[i].bss;
4178 				if (!link_bss)
4179 					link_bss = wpa_bss_get_bssid(
4180 						wpa_s, wpa_s->links[i].bssid);
4181 
4182 				if (link_bss &&
4183 				    is_assisted_p2p_dfs_allowed(wpa_s,
4184 								link_bss) &&
4185 				    is_dfs_owner_ap(wpa_s, link_bss)) {
4186 					wpa_s->assisted_dfs = true;
4187 					wpas_update_dfs_ap_info(
4188 						wpa_s, wpa_s->links[i].freq,
4189 						wpa_s->links[i].channel_bandwidth,
4190 						false);
4191 					break;
4192 				}
4193 			}
4194 		}
4195 	}
4196 #endif /* CONFIG_P2P */
4197 
4198 #ifndef CONFIG_NO_ROBUST_AV
4199 	wpas_handle_assoc_resp_qos_mgmt(wpa_s, data->assoc_info.resp_ies,
4200 					data->assoc_info.resp_ies_len);
4201 #endif /* CONFIG_NO_ROBUST_AV */
4202 
4203 	return 0;
4204 }
4205 
4206 
wpa_supplicant_assoc_update_ie(struct wpa_supplicant * wpa_s)4207 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
4208 {
4209 	const u8 *bss_wpa = NULL, *bss_rsn = NULL, *bss_rsnx = NULL;
4210 	const u8 *rsnoe, *rsno2e, *rsnxoe;
4211 
4212 	if (!wpa_s->current_bss || !wpa_s->current_ssid)
4213 		return -1;
4214 
4215 	if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
4216 		return 0;
4217 
4218 	bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
4219 					WPA_IE_VENDOR_TYPE);
4220 	bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
4221 	bss_rsnx = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSNX);
4222 	rsnoe = wpa_bss_get_vendor_ie(wpa_s->current_bss,
4223 				      RSNE_OVERRIDE_IE_VENDOR_TYPE);
4224 	rsno2e = wpa_bss_get_vendor_ie(wpa_s->current_bss,
4225 				       RSNE_OVERRIDE_2_IE_VENDOR_TYPE);
4226 	rsnxoe = wpa_bss_get_vendor_ie(wpa_s->current_bss,
4227 				       RSNXE_OVERRIDE_IE_VENDOR_TYPE);
4228 
4229 	if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
4230 				 bss_wpa ? 2 + bss_wpa[1] : 0) ||
4231 	    wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
4232 				 bss_rsn ? 2 + bss_rsn[1] : 0) ||
4233 	    wpa_sm_set_ap_rsnxe(wpa_s->wpa, bss_rsnx,
4234 				 bss_rsnx ? 2 + bss_rsnx[1] : 0) ||
4235 	    wpa_sm_set_ap_rsne_override(wpa_s->wpa, rsnoe,
4236 					rsnoe ? 2 + rsnoe[1] : 0) ||
4237 	    wpa_sm_set_ap_rsne_override_2(wpa_s->wpa, rsno2e,
4238 					  rsno2e ? 2 + rsno2e[1] : 0) ||
4239 	    wpa_sm_set_ap_rsnxe_override(wpa_s->wpa, rsnxoe,
4240 					 rsnxoe ? 2 + rsnxoe[1] : 0))
4241 		return -1;
4242 
4243 	return 0;
4244 }
4245 
4246 
wpas_fst_update_mb_assoc(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4247 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
4248 				     union wpa_event_data *data)
4249 {
4250 #ifdef CONFIG_FST
4251 	struct assoc_info *ai = data ? &data->assoc_info : NULL;
4252 	struct wpa_bss *bss = wpa_s->current_bss;
4253 	const u8 *ieprb, *iebcn;
4254 
4255 	wpabuf_free(wpa_s->received_mb_ies);
4256 	wpa_s->received_mb_ies = NULL;
4257 
4258 	if (ai &&
4259 	    !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
4260 		wpa_printf(MSG_DEBUG,
4261 			   "FST: MB IEs updated from Association Response frame");
4262 		return;
4263 	}
4264 
4265 	if (ai &&
4266 	    !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
4267 		wpa_printf(MSG_DEBUG,
4268 			   "FST: MB IEs updated from association event Beacon IEs");
4269 		return;
4270 	}
4271 
4272 	if (!bss)
4273 		return;
4274 
4275 	ieprb = wpa_bss_ie_ptr(bss);
4276 	iebcn = ieprb + bss->ie_len;
4277 
4278 	if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
4279 		wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
4280 	else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
4281 		wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
4282 #endif /* CONFIG_FST */
4283 }
4284 
4285 
wpas_ml_parse_assoc(struct wpa_supplicant * wpa_s,struct ieee802_11_elems * elems,struct ml_sta_link_info * ml_info)4286 static unsigned int wpas_ml_parse_assoc(struct wpa_supplicant *wpa_s,
4287 					struct ieee802_11_elems *elems,
4288 					struct ml_sta_link_info *ml_info)
4289 {
4290 	struct wpabuf *mlbuf;
4291 	struct ieee80211_eht_ml *ml;
4292 	size_t ml_len;
4293 	struct eht_ml_basic_common_info *common_info;
4294 	const u8 *pos;
4295 	u16 eml_capa = 0, mld_capa = 0;
4296 	const u16 control = MULTI_LINK_CONTROL_TYPE_BASIC |
4297 		BASIC_MULTI_LINK_CTRL_PRES_LINK_ID |
4298 		BASIC_MULTI_LINK_CTRL_PRES_BSS_PARAM_CH_COUNT;
4299 	u8 expected_common_info_len = 9;
4300 	unsigned int i = 0;
4301 	u16 ml_control;
4302 
4303 	if (!wpa_s->valid_links || !elems->basic_mle || !elems->basic_mle_len)
4304 		return 0;
4305 
4306 	mlbuf = ieee802_11_defrag(elems->basic_mle, elems->basic_mle_len, true);
4307 	if (!mlbuf)
4308 		return 0;
4309 
4310 	ml = (struct ieee80211_eht_ml *) wpabuf_head(mlbuf);
4311 	ml_len = wpabuf_len(mlbuf);
4312 	if (ml_len < sizeof(*ml))
4313 		goto out;
4314 
4315 	os_memset(ml_info, 0, sizeof(*ml_info) * MAX_NUM_MLD_LINKS);
4316 
4317 	ml_control = le_to_host16(ml->ml_control);
4318 
4319 	if ((ml_control & control) != control) {
4320 		wpa_printf(MSG_DEBUG, "MLD: Invalid presence BM=0x%x",
4321 			   ml_control);
4322 		goto out;
4323 	}
4324 
4325 	if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_EML_CAPA) {
4326 		wpa_printf(MSG_DEBUG, "MLD: EML capabilities included");
4327 		expected_common_info_len += 2;
4328 	}
4329 
4330 	if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_MLD_CAPA) {
4331 		wpa_printf(MSG_DEBUG, "MLD: MLD capabilities included");
4332 		expected_common_info_len += 2;
4333 	}
4334 
4335 	if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_MSD_INFO) {
4336 		wpa_printf(MSG_DEBUG,
4337 			   "MLD: Unexpected: medium sync delay info present");
4338 		expected_common_info_len += 2;
4339 	}
4340 
4341 	if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_AP_MLD_ID) {
4342 		wpa_printf(MSG_DEBUG,
4343 			   "MLD: Unexpected: MLD ID present");
4344 		expected_common_info_len++;
4345 	}
4346 
4347 	if (sizeof(*ml) + expected_common_info_len > ml_len) {
4348 		wpa_printf(MSG_DEBUG,
4349 			   "MLD: Not enough bytes for common info. ml_len=%zu",
4350 			   ml_len);
4351 		goto out;
4352 	}
4353 
4354 	common_info = (struct eht_ml_basic_common_info *) ml->variable;
4355 	if (common_info->len < expected_common_info_len) {
4356 		wpa_printf(MSG_DEBUG,
4357 			   "MLD: Invalid common info len=%u. expected=%u",
4358 			   common_info->len, expected_common_info_len);
4359 		goto out;
4360 	}
4361 
4362 	if (sizeof(*ml) + common_info->len > ml_len) {
4363 		wpa_printf(MSG_DEBUG,
4364 			   "MLD: Truncated common info (common_info->len=%u ml_len=%zu)",
4365 			   common_info->len, ml_len);
4366 		goto out;
4367 	}
4368 
4369 	wpa_printf(MSG_DEBUG, "MLD: address: " MACSTR,
4370 		   MAC2STR(common_info->mld_addr));
4371 
4372 	if (!ether_addr_equal(wpa_s->ap_mld_addr, common_info->mld_addr)) {
4373 		wpa_printf(MSG_DEBUG, "MLD: Mismatching MLD address (expected "
4374 			   MACSTR ")", MAC2STR(wpa_s->ap_mld_addr));
4375 		goto out;
4376 	}
4377 
4378 	pos = common_info->variable;
4379 
4380 	/* Store the information for the association link */
4381 	ml_info[i].link_id = *pos & EHT_ML_LINK_ID_MSK;
4382 	if (ml_info[i].link_id >= MAX_NUM_MLD_LINKS) {
4383 		wpa_printf(MSG_DEBUG,
4384 			   "MLD: Invalid Link ID value for assoc link");
4385 		goto out;
4386 	}
4387 	pos++;
4388 
4389 	/* Skip the BSS Parameters Change Count */
4390 	pos++;
4391 
4392 	/* Skip the Medium Synchronization Delay Information if present  */
4393 	if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_MSD_INFO)
4394 		pos += 2;
4395 
4396 	if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_EML_CAPA) {
4397 		eml_capa = WPA_GET_LE16(pos);
4398 		pos += 2;
4399 	}
4400 
4401 	if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_MLD_CAPA) {
4402 		mld_capa = WPA_GET_LE16(pos);
4403 		pos += 2;
4404 	}
4405 
4406 	wpa_printf(MSG_DEBUG,
4407 		   "MLD: link_id=%u, eml=0x%x, mld=0x%x",
4408 		   ml_info[i].link_id, eml_capa, mld_capa);
4409 
4410 	i++;
4411 
4412 	pos = ((u8 *) common_info) + common_info->len;
4413 	ml_len -= sizeof(*ml) + common_info->len;
4414 	while (ml_len > 2 && i < MAX_NUM_MLD_LINKS) {
4415 		size_t sub_elem_len, sta_info_len, sta_info_len_min;
4416 		u8 nstr_bitmap_len = 0;
4417 		u16 ctrl;
4418 		const u8 *end;
4419 		int num_frag_subelems;
4420 
4421 		num_frag_subelems =
4422 			ieee802_11_defrag_mle_subelem(mlbuf, pos,
4423 						      &sub_elem_len);
4424 		if (num_frag_subelems < 0) {
4425 			wpa_printf(MSG_DEBUG,
4426 				   "MLD: Failed to parse MLE subelem");
4427 			goto out;
4428 		}
4429 
4430 		if ((size_t) num_frag_subelems * 2 > ml_len)
4431 			goto out;
4432 		ml_len -= num_frag_subelems * 2;
4433 
4434 		wpa_printf(MSG_DEBUG, "MLD: Subelement len=%zu", sub_elem_len);
4435 
4436 		if (sub_elem_len > ml_len - 2) {
4437 			wpa_printf(MSG_DEBUG,
4438 				   "MLD: Invalid link info len: %zu > %zu",
4439 				   2 + sub_elem_len, ml_len);
4440 			goto out;
4441 		}
4442 
4443 		switch (*pos) {
4444 		case MULTI_LINK_SUB_ELEM_ID_PER_STA_PROFILE:
4445 			break;
4446 		case MULTI_LINK_SUB_ELEM_ID_FRAGMENT:
4447 		case MULTI_LINK_SUB_ELEM_ID_VENDOR:
4448 			wpa_printf(MSG_DEBUG,
4449 				   "MLD: Skip subelement id=%u, len=%zu",
4450 				   *pos, sub_elem_len);
4451 			pos += 2 + sub_elem_len;
4452 			ml_len -= 2 + sub_elem_len;
4453 			continue;
4454 		default:
4455 			wpa_printf(MSG_DEBUG, "MLD: Unknown subelement ID=%u",
4456 				   *pos);
4457 			goto out;
4458 		}
4459 
4460 		end = pos + 2 + sub_elem_len;
4461 
4462 		/* Skip the subelement ID and the length */
4463 		pos += 2;
4464 		ml_len -= 2;
4465 
4466 		if (end - pos < 2)
4467 			goto out;
4468 
4469 		/* Get the station control field */
4470 		ctrl = WPA_GET_LE16(pos);
4471 
4472 		pos += 2;
4473 		ml_len -= 2;
4474 
4475 		if (!(ctrl & BASIC_MLE_STA_CTRL_COMPLETE_PROFILE)) {
4476 			wpa_printf(MSG_DEBUG,
4477 				   "MLD: Per STA complete profile expected");
4478 			goto out;
4479 		}
4480 
4481 		if (!(ctrl & BASIC_MLE_STA_CTRL_PRES_STA_MAC)) {
4482 			wpa_printf(MSG_DEBUG,
4483 				   "MLD: Per STA MAC address not present");
4484 			goto out;
4485 		}
4486 
4487 		if (!(ctrl & BASIC_MLE_STA_CTRL_PRES_TSF_OFFSET)) {
4488 			wpa_printf(MSG_DEBUG,
4489 				   "MLD: Per STA TSF offset not present");
4490 			goto out;
4491 		}
4492 
4493 		if (!(ctrl & BASIC_MLE_STA_CTRL_PRES_BEACON_INT)) {
4494 			wpa_printf(MSG_DEBUG,
4495 				   "MLD: Beacon interval not present");
4496 			goto out;
4497 		}
4498 
4499 		if (!(ctrl & BASIC_MLE_STA_CTRL_PRES_DTIM_INFO)) {
4500 			wpa_printf(MSG_DEBUG,
4501 				   "MLD:  DTIM information not present");
4502 			goto out;
4503 		}
4504 
4505 		if (ctrl & BASIC_MLE_STA_CTRL_PRES_NSTR_LINK_PAIR) {
4506 			if (ctrl & BASIC_MLE_STA_CTRL_NSTR_BITMAP)
4507 				nstr_bitmap_len = 2;
4508 			else
4509 				nstr_bitmap_len = 1;
4510 		}
4511 
4512 		if (!(ctrl & BASIC_MLE_STA_CTRL_PRES_BSS_PARAM_COUNT)) {
4513 			wpa_printf(MSG_DEBUG,
4514 				   "MLD:  BSS params change count not present");
4515 			goto out;
4516 		}
4517 
4518 		sta_info_len_min = 1 + ETH_ALEN + 8 + 2 + 2 + 1 +
4519 			nstr_bitmap_len;
4520 		if (sta_info_len_min > ml_len ||
4521 		    sta_info_len_min > (size_t) (end - pos) ||
4522 		    sta_info_len_min + 2 > sub_elem_len) {
4523 			wpa_printf(MSG_DEBUG,
4524 				   "MLD: Invalid STA info min len=%zu, len=%u",
4525 				   sta_info_len_min, *pos);
4526 			goto out;
4527 		}
4528 		sta_info_len = *pos;
4529 		if (sta_info_len > ml_len ||
4530 		    sta_info_len > sub_elem_len - 2 ||
4531 		    sta_info_len < sta_info_len_min) {
4532 			wpa_printf(MSG_DEBUG,
4533 				   "MLD: Invalid STA info min len=%zu, len=%zu",
4534 				   sta_info_len_min, sta_info_len);
4535 			goto out;
4536 		}
4537 
4538 		/* Get the link address */
4539 		wpa_printf(MSG_DEBUG,
4540 			   "MLD: link addr: " MACSTR " nstr BM len=%u",
4541 			   MAC2STR(pos + 1), nstr_bitmap_len);
4542 
4543 		ml_info[i].link_id = ctrl & BASIC_MLE_STA_CTRL_LINK_ID_MASK;
4544 		if (ml_info[i].link_id >= MAX_NUM_MLD_LINKS) {
4545 			wpa_printf(MSG_DEBUG, "MLD: Invalid Link ID value");
4546 			goto out;
4547 		}
4548 		os_memcpy(ml_info[i].bssid, pos + 1, ETH_ALEN);
4549 
4550 		pos += sta_info_len;
4551 		ml_len -= sta_info_len;
4552 
4553 		wpa_printf(MSG_DEBUG, "MLD: sub_elem_len=%zu, sta_info_len=%zu",
4554 			   sub_elem_len, sta_info_len);
4555 
4556 		sub_elem_len -= sta_info_len + 2;
4557 		if (sub_elem_len < 4) {
4558 			wpa_printf(MSG_DEBUG, "MLD: Per STA profile too short");
4559 			goto out;
4560 		}
4561 
4562 		wpa_hexdump(MSG_MSGDUMP, "MLD: STA profile", pos, sub_elem_len);
4563 		ml_info[i].status = WPA_GET_LE16(pos + 2);
4564 
4565 		if (sub_elem_len > ml_len)
4566 			goto out;
4567 		pos += sub_elem_len;
4568 		ml_len -= sub_elem_len;
4569 
4570 		i++;
4571 	}
4572 
4573 	wpabuf_free(mlbuf);
4574 	return i;
4575 out:
4576 	wpabuf_free(mlbuf);
4577 	return 0;
4578 }
4579 
4580 
wpa_drv_get_mlo_info(struct wpa_supplicant * wpa_s)4581 static int wpa_drv_get_mlo_info(struct wpa_supplicant *wpa_s)
4582 {
4583 	struct driver_sta_mlo_info mlo;
4584 	int i;
4585 
4586 	os_memset(&mlo, 0, sizeof(mlo));
4587 	if (wpas_drv_get_sta_mlo_info(wpa_s, &mlo)) {
4588 		wpa_dbg(wpa_s, MSG_ERROR, "Failed to get MLO link info");
4589 		wpa_supplicant_deauthenticate(wpa_s,
4590 					      WLAN_REASON_DEAUTH_LEAVING);
4591 		return -1;
4592 	}
4593 
4594 	if (wpa_s->valid_links == mlo.valid_links) {
4595 		bool match = true;
4596 
4597 		if (!mlo.valid_links)
4598 			return 0;
4599 
4600 		for_each_link(mlo.valid_links, i) {
4601 			if (!ether_addr_equal(wpa_s->links[i].addr,
4602 					      mlo.links[i].addr) ||
4603 			    !ether_addr_equal(wpa_s->links[i].bssid,
4604 					      mlo.links[i].bssid)) {
4605 				match = false;
4606 				break;
4607 			}
4608 		}
4609 
4610 		if (match && wpa_s->mlo_assoc_link_id == mlo.assoc_link_id &&
4611 		    ether_addr_equal(wpa_s->ap_mld_addr, mlo.ap_mld_addr))
4612 			return 0;
4613 	}
4614 
4615 	wpa_s->valid_links = mlo.valid_links;
4616 	wpa_s->mlo_assoc_link_id = mlo.assoc_link_id;
4617 	os_memcpy(wpa_s->ap_mld_addr, mlo.ap_mld_addr, ETH_ALEN);
4618 	for_each_link(wpa_s->valid_links, i) {
4619 		os_memcpy(wpa_s->links[i].addr, mlo.links[i].addr, ETH_ALEN);
4620 		os_memcpy(wpa_s->links[i].bssid, mlo.links[i].bssid, ETH_ALEN);
4621 		wpa_s->links[i].freq = mlo.links[i].freq;
4622 		wpa_supplicant_update_link_bss(wpa_s, i, mlo.links[i].bssid);
4623 	}
4624 
4625 	return 0;
4626 }
4627 
4628 
wpa_sm_set_ml_info(struct wpa_supplicant * wpa_s)4629 static int wpa_sm_set_ml_info(struct wpa_supplicant *wpa_s)
4630 {
4631 	struct driver_sta_mlo_info drv_mlo;
4632 	struct wpa_sm_mlo wpa_mlo;
4633 	int i;
4634 
4635 	os_memset(&drv_mlo, 0, sizeof(drv_mlo));
4636 	if (wpas_drv_get_sta_mlo_info(wpa_s, &drv_mlo)) {
4637 		wpa_dbg(wpa_s, MSG_INFO, "Failed to get MLO link info");
4638 		return -1;
4639 	}
4640 
4641 	os_memset(&wpa_mlo, 0, sizeof(wpa_mlo));
4642 	if (!drv_mlo.valid_links)
4643 		goto out;
4644 
4645 	os_memcpy(wpa_mlo.ap_mld_addr, drv_mlo.ap_mld_addr, ETH_ALEN);
4646 	wpa_mlo.assoc_link_id = drv_mlo.assoc_link_id;
4647 	wpa_mlo.valid_links = drv_mlo.valid_links;
4648 	wpa_mlo.req_links = drv_mlo.req_links;
4649 
4650 	for_each_link(drv_mlo.req_links, i) {
4651 		struct wpa_bss *bss;
4652 		const u8 *rsne, *rsnxe, *rsnoe, *rsno2e, *rsnxoe;
4653 
4654 		bss = wpa_supplicant_get_new_bss(wpa_s, drv_mlo.links[i].bssid);
4655 		if (!bss) {
4656 			wpa_dbg(wpa_s, MSG_INFO,
4657 				"Failed to get MLO link %d BSS", i);
4658 			return -1;
4659 		}
4660 
4661 		rsne = wpa_bss_get_ie(bss, WLAN_EID_RSN);
4662 		rsnxe = wpa_bss_get_ie(bss, WLAN_EID_RSNX);
4663 		rsnoe = wpa_bss_get_vendor_ie(bss,
4664 					      RSNE_OVERRIDE_IE_VENDOR_TYPE);
4665 		rsno2e = wpa_bss_get_vendor_ie(bss,
4666 					       RSNE_OVERRIDE_2_IE_VENDOR_TYPE);
4667 		rsnxoe = wpa_bss_get_vendor_ie(bss,
4668 					       RSNXE_OVERRIDE_IE_VENDOR_TYPE);
4669 
4670 		wpa_mlo.links[i].ap_rsne = rsne ? (u8 *) rsne : NULL;
4671 		wpa_mlo.links[i].ap_rsne_len = rsne ? 2 + rsne[1] : 0;
4672 		wpa_mlo.links[i].ap_rsnxe = rsnxe ? (u8 *) rsnxe : NULL;
4673 		wpa_mlo.links[i].ap_rsnxe_len = rsnxe ? 2 + rsnxe[1] : 0;
4674 		wpa_mlo.links[i].ap_rsnoe = rsnoe ? (u8 *) rsnoe : NULL;
4675 		wpa_mlo.links[i].ap_rsnoe_len = rsnoe ? 2 + rsnoe[1] : 0;
4676 		wpa_mlo.links[i].ap_rsno2e = rsno2e ? (u8 *) rsno2e : NULL;
4677 		wpa_mlo.links[i].ap_rsno2e_len = rsno2e ? 2 + rsno2e[1] : 0;
4678 		wpa_mlo.links[i].ap_rsnxoe = rsnxoe ? (u8 *) rsnxoe : NULL;
4679 		wpa_mlo.links[i].ap_rsnxoe_len = rsnxoe ? 2 + rsnxoe[1] : 0;
4680 
4681 		os_memcpy(wpa_mlo.links[i].bssid, drv_mlo.links[i].bssid,
4682 			  ETH_ALEN);
4683 		os_memcpy(wpa_mlo.links[i].addr, drv_mlo.links[i].addr,
4684 			  ETH_ALEN);
4685 	}
4686 
4687 out:
4688 	return wpa_sm_set_mlo_params(wpa_s->wpa, &wpa_mlo);
4689 }
4690 
4691 
wpa_supplicant_event_assoc(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4692 static int wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
4693 				      union wpa_event_data *data)
4694 {
4695 	u8 bssid[ETH_ALEN];
4696 	int ft_completed, already_authorized;
4697 	int new_bss = 0;
4698 #if defined(CONFIG_FILS) || defined(CONFIG_MBO)
4699 	struct wpa_bss *bss;
4700 #endif /* CONFIG_FILS || CONFIG_MBO */
4701 
4702 #ifdef CONFIG_AP
4703 	if (wpa_s->ap_iface) {
4704 		if (!data)
4705 			return 0;
4706 		hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
4707 				    data->assoc_info.addr,
4708 				    data->assoc_info.req_ies,
4709 				    data->assoc_info.req_ies_len, NULL, 0,
4710 				    NULL, data->assoc_info.reassoc);
4711 		return 0;
4712 	}
4713 #endif /* CONFIG_AP */
4714 
4715 	eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
4716 	wpa_s->own_reconnect_req = 0;
4717 
4718 	ft_completed = wpa_ft_is_completed(wpa_s->wpa);
4719 
4720 	if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
4721 		wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
4722 		wpa_supplicant_deauthenticate(
4723 			wpa_s, WLAN_REASON_DEAUTH_LEAVING);
4724 		return -1;
4725 	}
4726 
4727 	if (wpa_drv_get_mlo_info(wpa_s) < 0) {
4728 		wpa_dbg(wpa_s, MSG_ERROR, "Failed to get MLO connection info");
4729 		wpa_supplicant_deauthenticate(wpa_s,
4730 					      WLAN_REASON_DEAUTH_LEAVING);
4731 		return -1;
4732 	}
4733 
4734 	if (ft_completed &&
4735 	    (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION)) {
4736 		wpa_msg(wpa_s, MSG_INFO, "Attempt to roam to " MACSTR,
4737 			MAC2STR(bssid));
4738 		if (!wpa_supplicant_update_current_bss(wpa_s, bssid)) {
4739 			wpa_printf(MSG_ERROR,
4740 				   "Can't find target AP's information!");
4741 			return 0;
4742 		}
4743 		wpa_supplicant_assoc_update_ie(wpa_s);
4744 	}
4745 
4746 	if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
4747 		return -1;
4748 	/*
4749 	 * FILS authentication can share the same mechanism to mark the
4750 	 * connection fully authenticated, so set ft_completed also based on
4751 	 * FILS result.
4752 	 */
4753 	if (!ft_completed)
4754 		ft_completed = wpa_fils_is_completed(wpa_s->wpa);
4755 
4756 	if (!ft_completed)
4757 		ft_completed = wpa_eppke_is_completed(wpa_s->wpa);
4758 
4759 	if (!ft_completed)
4760 		ft_completed = wpa_eap_over_auth_frame_is_completed(wpa_s->wpa);
4761 
4762 	wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
4763 	if (!ether_addr_equal(bssid, wpa_s->bssid)) {
4764 		if (os_reltime_initialized(&wpa_s->session_start)) {
4765 			os_reltime_age(&wpa_s->session_start,
4766 				       &wpa_s->session_length);
4767 			wpa_s->session_start.sec = 0;
4768 			wpa_s->session_start.usec = 0;
4769 			wpas_notify_session_length(wpa_s);
4770 		} else {
4771 			wpas_notify_auth_changed(wpa_s);
4772 			os_get_reltime(&wpa_s->session_start);
4773 		}
4774 		wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
4775 			MACSTR, MAC2STR(bssid));
4776 		new_bss = 1;
4777 		random_add_randomness(bssid, ETH_ALEN);
4778 		os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
4779 		os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
4780 		wpas_notify_bssid_changed(wpa_s);
4781 
4782 		if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
4783 			wpa_clear_keys(wpa_s, bssid);
4784 		}
4785 		if (wpa_supplicant_select_config(wpa_s, data) < 0) {
4786 			wpa_supplicant_deauthenticate(
4787 				wpa_s, WLAN_REASON_DEAUTH_LEAVING);
4788 			return -1;
4789 		}
4790 	}
4791 
4792 	if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
4793 	    data && wpa_supplicant_use_own_rsne_params(wpa_s, data) < 0)
4794 		return -1;
4795 
4796 	multi_ap_set_4addr_mode(wpa_s);
4797 
4798 	if (wpa_s->conf->ap_scan == 1 &&
4799 	    wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
4800 		if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
4801 			wpa_msg(wpa_s, MSG_WARNING,
4802 				"WPA/RSN IEs not updated");
4803 	}
4804 
4805 	wpas_fst_update_mb_assoc(wpa_s, data);
4806 
4807 #ifdef CONFIG_SME
4808 	/*
4809 	 * Cache the current AP's BSSID (for non-MLO connection) or MLD address
4810 	 * (for MLO connection) as the previous BSSID for subsequent
4811 	 * reassociation requests handled by SME-in-wpa_supplicant.
4812 	 */
4813 	os_memcpy(wpa_s->sme.prev_bssid,
4814 		  wpa_s->valid_links ? wpa_s->ap_mld_addr : bssid, ETH_ALEN);
4815 	wpa_s->sme.prev_bssid_set = 1;
4816 	wpa_s->sme.last_unprot_disconnect.sec = 0;
4817 #endif /* CONFIG_SME */
4818 
4819 	wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
4820 	if (wpa_s->current_ssid) {
4821 		/* When using scanning (ap_scan=1), SIM PC/SC interface can be
4822 		 * initialized before association, but for other modes,
4823 		 * initialize PC/SC here, if the current configuration needs
4824 		 * smartcard or SIM/USIM. */
4825 		wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
4826 	}
4827 	wpa_sm_notify_assoc(wpa_s->wpa, bssid);
4828 
4829 #ifdef CONFIG_PMKSA_PRIVACY
4830 	if (wpa_s->pmkid_anonce_set && wpa_s->pmkid_snonce_set &&
4831 	    wpa_s->assoc_resp_encrypted &&
4832 	    wpa_sm_pmksa_privacy_supported(wpa_s->wpa) &&
4833 	    (wpa_s->drv_flags2 &
4834 	     WPA_DRIVER_FLAGS2_ASSOCIATION_FRAME_ENCRYPTION) &&
4835 	    ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) ||
4836 	     (wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_PMKSA_PRIVACY))) {
4837 		struct rsn_pmksa_cache *t = wpa_sm_get_pmksa_cache(wpa_s->wpa);
4838 		const u8 *addr = wpa_s->valid_links ?
4839 			wpa_s->ap_mld_addr : wpa_s->bssid;
4840 		struct rsn_pmksa_cache_entry *e;
4841 
4842 		e = pmksa_cache_get(t, addr, NULL, NULL, 0, wpa_s->key_mgmt);
4843 		if (e && (e->auth_alg == WLAN_AUTH_EPPKE ||
4844 			  e->auth_alg == WLAN_AUTH_802_1X)) {
4845 			rsn_pmkid_privacy(wpa_s->pmkid_anonce,
4846 					  wpa_s->pmkid_snonce,
4847 					  wpa_s->key_mgmt, e->pmk_len,
4848 					  e->pmkid);
4849 		} else {
4850 			wpa_printf(MSG_DEBUG,
4851 				   "PMKID privacy: PMKSA cache entry not found for "
4852 				   MACSTR, MAC2STR(addr));
4853 		}
4854 		wpa_s->pmkid_anonce_set = false;
4855 		wpa_s->pmkid_snonce_set = false;
4856 	}
4857 #endif /* CONFIG_PMKSA_PRIVACY */
4858 
4859 	if (wpa_sm_set_ml_info(wpa_s)) {
4860 		wpa_dbg(wpa_s, MSG_INFO,
4861 			"Failed to set MLO connection info to wpa_sm");
4862 		wpa_supplicant_deauthenticate(wpa_s,
4863 					      WLAN_REASON_DEAUTH_LEAVING);
4864 		return -1;
4865 	}
4866 
4867 	if (wpa_s->l2)
4868 		l2_packet_notify_auth_start(wpa_s->l2);
4869 
4870 	already_authorized = data && data->assoc_info.authorized;
4871 
4872 	/*
4873 	 * Set portEnabled first to false in order to get EAP state machine out
4874 	 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
4875 	 * state machine may transit to AUTHENTICATING state based on obsolete
4876 	 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
4877 	 * AUTHENTICATED without ever giving chance to EAP state machine to
4878 	 * reset the state.
4879 	 */
4880 	if (!ft_completed && !already_authorized) {
4881 		eapol_sm_notify_portEnabled(wpa_s->eapol, false);
4882 		eapol_sm_notify_portValid(wpa_s->eapol, false);
4883 	}
4884 	if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
4885 	    wpa_s->key_mgmt == WPA_KEY_MGMT_DPP ||
4886 	    wpa_s->key_mgmt == WPA_KEY_MGMT_OWE || ft_completed ||
4887 	    already_authorized || wpa_s->drv_authorized_port)
4888 		eapol_sm_notify_eap_success(wpa_s->eapol, false);
4889 	/* 802.1X::portControl = Auto */
4890 	eapol_sm_notify_portEnabled(wpa_s->eapol, true);
4891 	wpa_s->eapol_received = 0;
4892 	if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
4893 	    wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
4894 	    (wpa_s->current_ssid &&
4895 	     wpa_s->current_ssid->mode == WPAS_MODE_IBSS)) {
4896 		if (wpa_s->current_ssid &&
4897 		    wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
4898 		    (wpa_s->drv_flags &
4899 		     WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
4900 			/*
4901 			 * Set the key after having received joined-IBSS event
4902 			 * from the driver.
4903 			 */
4904 			wpa_supplicant_set_wpa_none_key(wpa_s,
4905 							wpa_s->current_ssid);
4906 		}
4907 		wpa_supplicant_cancel_auth_timeout(wpa_s);
4908 		wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
4909 	} else if (!ft_completed) {
4910 		/* Timeout for receiving the first EAPOL packet */
4911 		wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
4912 	}
4913 	wpa_supplicant_cancel_scan(wpa_s);
4914 
4915 	if (ft_completed) {
4916 		/*
4917 		 * FT protocol completed - make sure EAPOL state machine ends
4918 		 * up in authenticated.
4919 		 */
4920 		wpa_supplicant_cancel_auth_timeout(wpa_s);
4921 		wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
4922 		eapol_sm_notify_portValid(wpa_s->eapol, true);
4923 		eapol_sm_notify_eap_success(wpa_s->eapol, true);
4924 	} else if (((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK) &&
4925 		    wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) ||
4926 		   ((wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_OWE_OFFLOAD_STA) &&
4927 		    wpa_s->key_mgmt == WPA_KEY_MGMT_OWE)) {
4928 		if (already_authorized) {
4929 			/*
4930 			 * We are done; the driver will take care of RSN 4-way
4931 			 * handshake.
4932 			 */
4933 			wpa_supplicant_cancel_auth_timeout(wpa_s);
4934 			wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
4935 			eapol_sm_notify_portValid(wpa_s->eapol, true);
4936 			eapol_sm_notify_eap_success(wpa_s->eapol, true);
4937 		} else {
4938 			/* Update port, WPA_COMPLETED state from the
4939 			 * EVENT_PORT_AUTHORIZED handler when the driver is done
4940 			 * with the 4-way handshake.
4941 			 */
4942 			wpa_msg(wpa_s, MSG_DEBUG,
4943 				"ASSOC INFO: wait for driver port authorized indication");
4944 		}
4945 	} else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X) &&
4946 		   wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
4947 		/*
4948 		 * The driver will take care of RSN 4-way handshake, so we need
4949 		 * to allow EAPOL supplicant to complete its work without
4950 		 * waiting for WPA supplicant.
4951 		 */
4952 		eapol_sm_notify_portValid(wpa_s->eapol, true);
4953 	}
4954 
4955 	wpa_s->last_eapol_matches_bssid = 0;
4956 	wpa_s->ext_auth_to_same_bss = false;
4957 
4958 #ifdef CONFIG_TESTING_OPTIONS
4959 	if (wpa_s->rsne_override_eapol) {
4960 		wpa_printf(MSG_DEBUG,
4961 			   "TESTING: RSNE EAPOL-Key msg 2/4 override");
4962 		wpa_sm_set_assoc_wpa_ie(wpa_s->wpa,
4963 					wpabuf_head(wpa_s->rsne_override_eapol),
4964 					wpabuf_len(wpa_s->rsne_override_eapol));
4965 	}
4966 	if (wpa_s->rsnxe_override_eapol) {
4967 		wpa_printf(MSG_DEBUG,
4968 			   "TESTING: RSNXE EAPOL-Key msg 2/4 override");
4969 		wpa_sm_set_assoc_rsnxe(wpa_s->wpa,
4970 				       wpabuf_head(wpa_s->rsnxe_override_eapol),
4971 				       wpabuf_len(wpa_s->rsnxe_override_eapol));
4972 	}
4973 #endif /* CONFIG_TESTING_OPTIONS */
4974 
4975 	if (wpa_s->pending_eapol_rx) {
4976 		struct os_reltime now, age;
4977 		os_get_reltime(&now);
4978 		os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
4979 		if (age.sec == 0 && age.usec < 200000 &&
4980 		    ether_addr_equal(wpa_s->pending_eapol_rx_src,
4981 				     wpa_s->valid_links ? wpa_s->ap_mld_addr :
4982 				     bssid)) {
4983 			wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
4984 				"frame that was received just before "
4985 				"association notification");
4986 			wpa_supplicant_rx_eapol(
4987 				wpa_s, wpa_s->pending_eapol_rx_src,
4988 				wpabuf_head(wpa_s->pending_eapol_rx),
4989 				wpabuf_len(wpa_s->pending_eapol_rx),
4990 				wpa_s->pending_eapol_encrypted);
4991 		}
4992 		wpabuf_free(wpa_s->pending_eapol_rx);
4993 		wpa_s->pending_eapol_rx = NULL;
4994 	}
4995 
4996 #ifdef CONFIG_WEP
4997 	if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
4998 	     wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
4999 	    wpa_s->current_ssid &&
5000 	    (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
5001 		/* Set static WEP keys again */
5002 		wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
5003 	}
5004 #endif /* CONFIG_WEP */
5005 
5006 #ifdef CONFIG_IBSS_RSN
5007 	if (wpa_s->current_ssid &&
5008 	    wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
5009 	    wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
5010 	    wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
5011 	    wpa_s->ibss_rsn == NULL) {
5012 		wpa_s->ibss_rsn = ibss_rsn_init(wpa_s, wpa_s->current_ssid);
5013 		if (!wpa_s->ibss_rsn) {
5014 			wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
5015 			wpa_supplicant_deauthenticate(
5016 				wpa_s, WLAN_REASON_DEAUTH_LEAVING);
5017 			return -1;
5018 		}
5019 
5020 		ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
5021 	}
5022 #endif /* CONFIG_IBSS_RSN */
5023 
5024 	wpas_wps_notify_assoc(wpa_s, bssid);
5025 
5026 #ifndef CONFIG_NO_WMM_AC
5027 	if (data) {
5028 		wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
5029 				    data->assoc_info.resp_ies_len,
5030 				    &data->assoc_info.wmm_params);
5031 
5032 		if (wpa_s->reassoc_same_bss)
5033 			wmm_ac_restore_tspecs(wpa_s);
5034 	}
5035 #endif /* CONFIG_NO_WMM_AC */
5036 
5037 #if defined(CONFIG_FILS) || defined(CONFIG_MBO)
5038 	bss = wpa_bss_get_bssid(wpa_s, bssid);
5039 #endif /* CONFIG_FILS || CONFIG_MBO */
5040 #ifdef CONFIG_FILS
5041 	if (wpa_key_mgmt_fils(wpa_s->key_mgmt)) {
5042 		const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
5043 
5044 		if (fils_cache_id)
5045 			wpa_sm_set_fils_cache_id(wpa_s->wpa, fils_cache_id);
5046 	}
5047 #endif /* CONFIG_FILS */
5048 
5049 #ifdef CONFIG_MBO
5050 	wpas_mbo_check_pmf(wpa_s, bss, wpa_s->current_ssid);
5051 #endif /* CONFIG_MBO */
5052 
5053 #ifdef CONFIG_DPP2
5054 	wpa_s->dpp_pfs_fallback = 0;
5055 #endif /* CONFIG_DPP2 */
5056 
5057 	if (wpa_s->current_ssid && wpa_s->current_ssid->enable_4addr_mode)
5058 		wpa_supplicant_set_4addr_mode(wpa_s);
5059 
5060 	return 0;
5061 }
5062 
5063 
disconnect_reason_recoverable(u16 reason_code)5064 static int disconnect_reason_recoverable(u16 reason_code)
5065 {
5066 	return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
5067 		reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
5068 		reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
5069 }
5070 
5071 
wpa_supplicant_event_disassoc(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)5072 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
5073 					  u16 reason_code,
5074 					  int locally_generated)
5075 {
5076 	const u8 *bssid;
5077 
5078 	bssid = wpa_s->bssid;
5079 	if (is_zero_ether_addr(bssid))
5080 		bssid = wpa_s->pending_bssid;
5081 
5082 	if (!is_zero_ether_addr(bssid) ||
5083 	    wpa_s->wpa_state >= WPA_AUTHENTICATING) {
5084 		wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
5085 			" reason=%d%s",
5086 			MAC2STR(bssid), reason_code,
5087 			locally_generated ? " locally_generated=1" : "");
5088 	}
5089 }
5090 
5091 
could_be_psk_mismatch(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)5092 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
5093 				 int locally_generated)
5094 {
5095 	if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
5096 	    !wpa_s->new_connection ||
5097 	    !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
5098 	    wpa_key_mgmt_sae(wpa_s->key_mgmt))
5099 		return 0; /* Not in initial 4-way handshake with PSK */
5100 
5101 	/*
5102 	 * It looks like connection was lost while trying to go through PSK
5103 	 * 4-way handshake. Filter out known disconnection cases that are caused
5104 	 * by something else than PSK mismatch to avoid confusing reports.
5105 	 */
5106 
5107 	if (locally_generated) {
5108 		if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
5109 			return 0;
5110 		if (reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY)
5111 			return 0;
5112 	}
5113 
5114 	return 1;
5115 }
5116 
5117 
wpa_supplicant_event_disassoc_finish(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)5118 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
5119 						 u16 reason_code,
5120 						 int locally_generated)
5121 {
5122 	const u8 *bssid;
5123 	struct wpa_bss *fast_reconnect = NULL;
5124 	struct wpa_ssid *fast_reconnect_ssid = NULL;
5125 	struct wpa_bss *curr = NULL;
5126 
5127 	if (!wpa_s->disconnected && wpa_s->wpa_state >= WPA_AUTHENTICATING &&
5128 	    reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY &&
5129 	    locally_generated)
5130 		/*
5131 		 * Remove the inactive AP (which is probably out of range) from
5132 		 * the BSS list after marking disassociation. In particular
5133 		 * mac80211-based drivers use the
5134 		 * WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in
5135 		 * locally generated disconnection events for cases where the
5136 		 * AP does not reply anymore.
5137 		 */
5138 		curr = wpa_s->current_bss;
5139 
5140 	if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
5141 		wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
5142 			"pre-shared key may be incorrect");
5143 		if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
5144 			return; /* P2P group removed */
5145 		bssid = wpa_s->bssid;
5146 		if (is_zero_ether_addr(bssid))
5147 			bssid = wpa_s->pending_bssid;
5148 		wpa_bssid_ignore_add(wpa_s, bssid);
5149 		wpas_auth_failed(wpa_s, "WRONG_KEY", wpa_s->pending_bssid);
5150 		wpas_notify_psk_mismatch(wpa_s);
5151 	}
5152 	if (!wpa_s->disconnected &&
5153 	    (!wpa_s->auto_reconnect_disabled ||
5154 	     wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
5155 	     wpas_wps_searching(wpa_s) ||
5156 	     wpas_wps_reenable_networks_pending(wpa_s))) {
5157 		wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
5158 			"reconnect (wps=%d/%d wpa_state=%d)",
5159 			wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
5160 			wpas_wps_searching(wpa_s),
5161 			wpa_s->wpa_state);
5162 		if (wpa_s->wpa_state == WPA_COMPLETED &&
5163 		    wpa_s->current_ssid &&
5164 		    wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
5165 		    (wpa_s->own_reconnect_req ||
5166 		     (!locally_generated &&
5167 		      disconnect_reason_recoverable(reason_code)))) {
5168 			/*
5169 			 * It looks like the AP has dropped association with
5170 			 * us, but could allow us to get back in. This is also
5171 			 * triggered for cases where local reconnection request
5172 			 * is used to force reassociation with the same BSS.
5173 			 * Try to reconnect to the same BSS without a full scan
5174 			 * to save time for some common cases.
5175 			 */
5176 			fast_reconnect = wpa_s->current_bss;
5177 			fast_reconnect_ssid = wpa_s->current_ssid;
5178 		} else if (wpa_s->wpa_state >= WPA_ASSOCIATING) {
5179 			wpa_supplicant_req_scan(wpa_s, 0, 100000);
5180 		} else {
5181 			wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
5182 				"immediate scan");
5183 		}
5184 	} else {
5185 		wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
5186 			"try to re-connect");
5187 		wpa_s->reassociate = 0;
5188 		wpa_s->disconnected = 1;
5189 		if (!wpa_s->pno)
5190 			wpa_supplicant_cancel_sched_scan(wpa_s);
5191 	}
5192 	bssid = wpa_s->bssid;
5193 	if (is_zero_ether_addr(bssid))
5194 		bssid = wpa_s->pending_bssid;
5195 	if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
5196 		wpas_connection_failed(wpa_s, bssid, NULL);
5197 	wpa_sm_notify_disassoc(wpa_s->wpa);
5198 	ptksa_cache_flush(wpa_s->ptksa, wpa_s->bssid, WPA_CIPHER_NONE);
5199 
5200 	wpas_update_dfs_ap_info(wpa_s, 0, 0, true);
5201 
5202 	if (locally_generated)
5203 		wpa_s->disconnect_reason = -reason_code;
5204 	else
5205 		wpa_s->disconnect_reason = reason_code;
5206 	wpas_notify_disconnect_reason(wpa_s);
5207 #ifdef CONFIG_DPP2
5208 	wpas_dpp_send_conn_status_result(wpa_s, DPP_STATUS_AUTH_FAILURE);
5209 #endif /* CONFIG_DPP2 */
5210 	wpa_supplicant_mark_disassoc(wpa_s);
5211 	if (wpa_supplicant_dynamic_keys(wpa_s)) {
5212 		wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
5213 		wpa_clear_keys(wpa_s, wpa_s->bssid);
5214 	}
5215 
5216 	if (curr)
5217 		wpa_bss_remove(wpa_s, curr, "Connection to AP lost");
5218 
5219 	if (fast_reconnect &&
5220 	    !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
5221 	    !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
5222 	    !disallowed_ssid(wpa_s, fast_reconnect->ssid,
5223 			     fast_reconnect->ssid_len) &&
5224 	    !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
5225 	    !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect)) {
5226 #ifndef CONFIG_NO_SCAN_PROCESSING
5227 		wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
5228 		if (wpa_supplicant_connect(wpa_s, fast_reconnect,
5229 					   fast_reconnect_ssid) < 0) {
5230 			/* Recover through full scan */
5231 			wpa_supplicant_req_scan(wpa_s, 0, 100000);
5232 		}
5233 #endif /* CONFIG_NO_SCAN_PROCESSING */
5234 	} else if (fast_reconnect) {
5235 		/*
5236 		 * Could not reconnect to the same BSS due to network being
5237 		 * disabled. Use a new scan to match the alternative behavior
5238 		 * above, i.e., to continue automatic reconnection attempt in a
5239 		 * way that enforces disabled network rules.
5240 		 */
5241 		wpa_supplicant_req_scan(wpa_s, 0, 100000);
5242 	}
5243 }
5244 
5245 
5246 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
wpa_supplicant_delayed_mic_error_report(void * eloop_ctx,void * sock_ctx)5247 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
5248 {
5249 	struct wpa_supplicant *wpa_s = eloop_ctx;
5250 
5251 	if (!wpa_s->pending_mic_error_report)
5252 		return;
5253 
5254 	wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
5255 	wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
5256 	wpa_s->pending_mic_error_report = 0;
5257 }
5258 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
5259 
5260 
5261 static void
wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant * wpa_s,union wpa_event_data * data)5262 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
5263 					 union wpa_event_data *data)
5264 {
5265 	int pairwise;
5266 	struct os_reltime t;
5267 
5268 	wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
5269 	pairwise = (data && data->michael_mic_failure.unicast);
5270 	os_get_reltime(&t);
5271 	if ((os_reltime_initialized(&wpa_s->last_michael_mic_error) &&
5272 	     !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
5273 	    wpa_s->pending_mic_error_report) {
5274 		if (wpa_s->pending_mic_error_report) {
5275 			/*
5276 			 * Send the pending MIC error report immediately since
5277 			 * we are going to start countermeasures and AP better
5278 			 * do the same.
5279 			 */
5280 			wpa_sm_key_request(wpa_s->wpa, 1,
5281 					   wpa_s->pending_mic_error_pairwise);
5282 		}
5283 
5284 		/* Send the new MIC error report immediately since we are going
5285 		 * to start countermeasures and AP better do the same.
5286 		 */
5287 		wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
5288 
5289 		/* initialize countermeasures */
5290 		wpa_s->countermeasures = 1;
5291 
5292 		wpa_bssid_ignore_add(wpa_s, wpa_s->bssid);
5293 
5294 		wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
5295 
5296 		/*
5297 		 * Need to wait for completion of request frame. We do not get
5298 		 * any callback for the message completion, so just wait a
5299 		 * short while and hope for the best. */
5300 		os_sleep(0, 10000);
5301 
5302 		wpa_drv_set_countermeasures(wpa_s, 1);
5303 		wpa_supplicant_deauthenticate(wpa_s,
5304 					      WLAN_REASON_MICHAEL_MIC_FAILURE);
5305 		eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
5306 				     wpa_s, NULL);
5307 		eloop_register_timeout(60, 0,
5308 				       wpa_supplicant_stop_countermeasures,
5309 				       wpa_s, NULL);
5310 		/* TODO: mark the AP rejected for 60 second. STA is
5311 		 * allowed to associate with another AP.. */
5312 	} else {
5313 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
5314 		if (wpa_s->mic_errors_seen) {
5315 			/*
5316 			 * Reduce the effectiveness of Michael MIC error
5317 			 * reports as a means for attacking against TKIP if
5318 			 * more than one MIC failure is noticed with the same
5319 			 * PTK. We delay the transmission of the reports by a
5320 			 * random time between 0 and 60 seconds in order to
5321 			 * force the attacker wait 60 seconds before getting
5322 			 * the information on whether a frame resulted in a MIC
5323 			 * failure.
5324 			 */
5325 			u8 rval[4];
5326 			int sec;
5327 
5328 			if (os_get_random(rval, sizeof(rval)) < 0)
5329 				sec = os_random() % 60;
5330 			else
5331 				sec = WPA_GET_BE32(rval) % 60;
5332 			wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
5333 				"report %d seconds", sec);
5334 			wpa_s->pending_mic_error_report = 1;
5335 			wpa_s->pending_mic_error_pairwise = pairwise;
5336 			eloop_cancel_timeout(
5337 				wpa_supplicant_delayed_mic_error_report,
5338 				wpa_s, NULL);
5339 			eloop_register_timeout(
5340 				sec, os_random() % 1000000,
5341 				wpa_supplicant_delayed_mic_error_report,
5342 				wpa_s, NULL);
5343 		} else {
5344 			wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
5345 		}
5346 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
5347 		wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
5348 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
5349 	}
5350 	wpa_s->last_michael_mic_error = t;
5351 	wpa_s->mic_errors_seen++;
5352 }
5353 
5354 
5355 #ifdef CONFIG_TERMINATE_ONLASTIF
any_interfaces(struct wpa_supplicant * head)5356 static int any_interfaces(struct wpa_supplicant *head)
5357 {
5358 	struct wpa_supplicant *wpa_s;
5359 
5360 	for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
5361 		if (!wpa_s->interface_removed)
5362 			return 1;
5363 	return 0;
5364 }
5365 #endif /* CONFIG_TERMINATE_ONLASTIF */
5366 
5367 
5368 static void
wpa_supplicant_event_interface_status(struct wpa_supplicant * wpa_s,union wpa_event_data * data)5369 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
5370 				      union wpa_event_data *data)
5371 {
5372 	if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
5373 		return;
5374 
5375 	switch (data->interface_status.ievent) {
5376 	case EVENT_INTERFACE_ADDED:
5377 		if (!wpa_s->interface_removed)
5378 			break;
5379 		wpa_s->interface_removed = 0;
5380 		wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
5381 		if (wpa_supplicant_driver_init(wpa_s) < 0) {
5382 			wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
5383 				"driver after interface was added");
5384 		}
5385 
5386 #ifdef CONFIG_P2P
5387 		if (!wpa_s->global->p2p &&
5388 		    !wpa_s->global->p2p_disabled &&
5389 		    !wpa_s->conf->p2p_disabled &&
5390 		    !wpas_is_nan_iface(wpa_s) &&
5391 		    (wpa_s->drv_flags &
5392 		     WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
5393 		    wpas_p2p_add_p2pdev_interface(
5394 			    wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
5395 			wpa_printf(MSG_INFO,
5396 				   "P2P: Failed to enable P2P Device interface");
5397 			/* Try to continue without. P2P will be disabled. */
5398 		}
5399 #endif /* CONFIG_P2P */
5400 
5401 		break;
5402 	case EVENT_INTERFACE_REMOVED:
5403 		wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
5404 		wpa_s->interface_removed = 1;
5405 		wpa_supplicant_mark_disassoc(wpa_s);
5406 		wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
5407 		l2_packet_deinit(wpa_s->l2);
5408 		wpa_s->l2 = NULL;
5409 
5410 #ifdef CONFIG_P2P
5411 		if (wpa_s->global->p2p &&
5412 		    wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
5413 		    (wpa_s->drv_flags &
5414 		     WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
5415 			wpa_dbg(wpa_s, MSG_DEBUG,
5416 				"Removing P2P Device interface");
5417 			wpa_supplicant_remove_iface(
5418 				wpa_s->global, wpa_s->global->p2p_init_wpa_s,
5419 				0);
5420 			wpa_s->global->p2p_init_wpa_s = NULL;
5421 		}
5422 #endif /* CONFIG_P2P */
5423 
5424 #ifdef CONFIG_NAN
5425 		if (wpa_s->nan_data) {
5426 			wpa_printf(MSG_DEBUG, "%s: NAN data interface removed",
5427 				   wpa_s->ifname);
5428 
5429 			wpas_nan_data_interface_removed(wpa_s);
5430 			wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
5431 			break;
5432 		}
5433 
5434 		if (wpa_s->nan_mgmt) {
5435 			wpa_printf(MSG_DEBUG,
5436 				   "%s: NAN management interface removed",
5437 				   wpa_s->ifname);
5438 
5439 			/*
5440 			 * Note: NAN is stopped when the interface is
5441 			 * disabled.
5442 			 */
5443 			wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
5444 			break;
5445 		}
5446 #endif /* CONFIG_NAN */
5447 
5448 #ifdef CONFIG_MATCH_IFACE
5449 		if (wpa_s->matched) {
5450 			wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
5451 			break;
5452 		}
5453 #endif /* CONFIG_MATCH_IFACE */
5454 
5455 #ifdef CONFIG_TERMINATE_ONLASTIF
5456 		/* check if last interface */
5457 		if (!any_interfaces(wpa_s->global->ifaces))
5458 			eloop_terminate();
5459 #endif /* CONFIG_TERMINATE_ONLASTIF */
5460 		break;
5461 	}
5462 }
5463 
5464 
5465 #ifdef CONFIG_TDLS
wpa_supplicant_event_tdls(struct wpa_supplicant * wpa_s,union wpa_event_data * data)5466 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
5467 				      union wpa_event_data *data)
5468 {
5469 	if (data == NULL)
5470 		return;
5471 	switch (data->tdls.oper) {
5472 	case TDLS_REQUEST_SETUP:
5473 		wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
5474 		if (wpa_tdls_is_external_setup(wpa_s->wpa))
5475 			wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
5476 		else
5477 			wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
5478 		break;
5479 	case TDLS_REQUEST_TEARDOWN:
5480 		if (wpa_tdls_is_external_setup(wpa_s->wpa))
5481 			wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
5482 					       data->tdls.reason_code);
5483 		else
5484 			wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
5485 					  data->tdls.peer);
5486 		break;
5487 	case TDLS_REQUEST_DISCOVER:
5488 			wpa_tdls_send_discovery_request(wpa_s->wpa,
5489 							data->tdls.peer);
5490 		break;
5491 	}
5492 }
5493 #endif /* CONFIG_TDLS */
5494 
5495 
5496 #ifdef CONFIG_WNM
wpa_supplicant_event_wnm(struct wpa_supplicant * wpa_s,union wpa_event_data * data)5497 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
5498 				     union wpa_event_data *data)
5499 {
5500 	if (data == NULL)
5501 		return;
5502 	switch (data->wnm.oper) {
5503 	case WNM_OPER_SLEEP:
5504 		wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
5505 			   "(action=%d, intval=%d)",
5506 			   data->wnm.sleep_action, data->wnm.sleep_intval);
5507 		ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
5508 					     data->wnm.sleep_intval, NULL);
5509 		break;
5510 	}
5511 }
5512 #endif /* CONFIG_WNM */
5513 
5514 
5515 #ifdef CONFIG_IEEE80211R
5516 static void
wpa_supplicant_event_ft_response(struct wpa_supplicant * wpa_s,union wpa_event_data * data)5517 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
5518 				 union wpa_event_data *data)
5519 {
5520 	if (data == NULL)
5521 		return;
5522 
5523 	if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
5524 				    data->ft_ies.ies_len,
5525 				    data->ft_ies.ft_action,
5526 				    data->ft_ies.target_ap,
5527 				    data->ft_ies.ric_ies,
5528 				    data->ft_ies.ric_ies_len) < 0) {
5529 		/* TODO: prevent MLME/driver from trying to associate? */
5530 	}
5531 }
5532 #endif /* CONFIG_IEEE80211R */
5533 
5534 
5535 #ifdef CONFIG_IBSS_RSN
wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant * wpa_s,union wpa_event_data * data)5536 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
5537 						union wpa_event_data *data)
5538 {
5539 	struct wpa_ssid *ssid;
5540 	if (wpa_s->wpa_state < WPA_ASSOCIATED)
5541 		return;
5542 	if (data == NULL)
5543 		return;
5544 	ssid = wpa_s->current_ssid;
5545 	if (ssid == NULL)
5546 		return;
5547 	if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
5548 		return;
5549 
5550 	ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
5551 }
5552 
5553 
wpa_supplicant_event_ibss_auth(struct wpa_supplicant * wpa_s,union wpa_event_data * data)5554 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
5555 					   union wpa_event_data *data)
5556 {
5557 	struct wpa_ssid *ssid = wpa_s->current_ssid;
5558 
5559 	if (ssid == NULL)
5560 		return;
5561 
5562 	/* check if the ssid is correctly configured as IBSS/RSN */
5563 	if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
5564 		return;
5565 
5566 	ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
5567 			     data->rx_mgmt.frame_len);
5568 }
5569 #endif /* CONFIG_IBSS_RSN */
5570 
5571 
5572 #ifdef CONFIG_IEEE80211R
ft_rx_action(struct wpa_supplicant * wpa_s,const u8 * da,const u8 * sa,const u8 * data,size_t len)5573 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *da,
5574 			 const u8 *sa, const u8 *data, size_t len)
5575 {
5576 	const u8 *sta_addr, *target_ap_addr;
5577 	u16 status;
5578 
5579 	wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
5580 	if (is_multicast_ether_addr(da)) {
5581 		wpa_printf(MSG_DEBUG,
5582 			   "FT: Ignore group-addressed FT Action frame (A1=" MACSTR " A2=" MACSTR ")",
5583 			   MAC2STR(da), MAC2STR(sa));
5584 		return;
5585 	}
5586 	if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
5587 		return; /* only SME case supported for now */
5588 	if (len < 1 + 2 * ETH_ALEN + 2)
5589 		return;
5590 	if (data[0] != 2)
5591 		return; /* Only FT Action Response is supported for now */
5592 	sta_addr = data + 1;
5593 	target_ap_addr = data + 1 + ETH_ALEN;
5594 	status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
5595 	wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
5596 		MACSTR " TargetAP " MACSTR " status %u",
5597 		MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
5598 
5599 	if (!ether_addr_equal(sta_addr, wpa_s->own_addr)) {
5600 		wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
5601 			" in FT Action Response", MAC2STR(sta_addr));
5602 		return;
5603 	}
5604 
5605 	if (status) {
5606 		wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
5607 			"failure (status code %d)", status);
5608 		/* TODO: report error to FT code(?) */
5609 		return;
5610 	}
5611 
5612 	if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
5613 				    len - (1 + 2 * ETH_ALEN + 2), 1,
5614 				    target_ap_addr, NULL, 0) < 0)
5615 		return;
5616 
5617 #ifdef CONFIG_SME
5618 	{
5619 		struct wpa_bss *bss;
5620 		bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
5621 		if (bss)
5622 			wpa_s->sme.freq = bss->freq;
5623 		wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
5624 		sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
5625 			      WLAN_AUTH_FT);
5626 	}
5627 #endif /* CONFIG_SME */
5628 }
5629 #endif /* CONFIG_IEEE80211R */
5630 
5631 
wpa_supplicant_event_unprot_deauth(struct wpa_supplicant * wpa_s,struct unprot_deauth * e)5632 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
5633 					       struct unprot_deauth *e)
5634 {
5635 	wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
5636 		   "dropped: " MACSTR " -> " MACSTR
5637 		   " (reason code %u)",
5638 		   MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
5639 	sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
5640 }
5641 
5642 
wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant * wpa_s,struct unprot_disassoc * e)5643 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
5644 						 struct unprot_disassoc *e)
5645 {
5646 	wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
5647 		   "dropped: " MACSTR " -> " MACSTR
5648 		   " (reason code %u)",
5649 		   MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
5650 	sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
5651 }
5652 
5653 
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)5654 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
5655 				  u16 reason_code, int locally_generated,
5656 				  const u8 *ie, size_t ie_len, int deauth)
5657 {
5658 #ifdef CONFIG_AP
5659 	if (wpa_s->ap_iface && addr) {
5660 		hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
5661 		return;
5662 	}
5663 
5664 	if (wpa_s->ap_iface) {
5665 		wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
5666 		return;
5667 	}
5668 #endif /* CONFIG_AP */
5669 
5670 	if (!locally_generated)
5671 		wpa_s->own_disconnect_req = 0;
5672 
5673 	wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
5674 
5675 	if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
5676 	      ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
5677 		(wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
5678 	       eapol_sm_failed(wpa_s->eapol))) &&
5679 	     !wpa_s->eap_expected_failure))
5680 		wpas_auth_failed(wpa_s, "AUTH_FAILED", addr);
5681 
5682 #ifdef CONFIG_P2P
5683 	if (deauth && reason_code > 0) {
5684 		if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
5685 					  locally_generated) > 0) {
5686 			/*
5687 			 * The interface was removed, so cannot continue
5688 			 * processing any additional operations after this.
5689 			 */
5690 			return;
5691 		}
5692 	}
5693 #endif /* CONFIG_P2P */
5694 
5695 	wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
5696 					     locally_generated);
5697 }
5698 
5699 
wpas_event_disassoc(struct wpa_supplicant * wpa_s,struct disassoc_info * info)5700 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
5701 				struct disassoc_info *info)
5702 {
5703 	u16 reason_code = 0;
5704 	int locally_generated = 0;
5705 	const u8 *addr = NULL;
5706 	const u8 *ie = NULL;
5707 	size_t ie_len = 0;
5708 
5709 	wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
5710 
5711 	if (info) {
5712 		addr = info->addr;
5713 		ie = info->ie;
5714 		ie_len = info->ie_len;
5715 		reason_code = info->reason_code;
5716 		locally_generated = info->locally_generated;
5717 		wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s", reason_code,
5718 			reason2str(reason_code),
5719 			locally_generated ? " locally_generated=1" : "");
5720 		if (addr)
5721 			wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
5722 				MAC2STR(addr));
5723 		wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
5724 			    ie, ie_len);
5725 	}
5726 
5727 #ifdef CONFIG_AP
5728 	if (wpa_s->ap_iface && info && info->addr) {
5729 		hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
5730 		return;
5731 	}
5732 
5733 	if (wpa_s->ap_iface) {
5734 		wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
5735 		return;
5736 	}
5737 #endif /* CONFIG_AP */
5738 
5739 #ifdef CONFIG_P2P
5740 	if (info) {
5741 		wpas_p2p_disassoc_notif(
5742 			wpa_s, info->addr, reason_code, info->ie, info->ie_len,
5743 			locally_generated);
5744 	}
5745 #endif /* CONFIG_P2P */
5746 
5747 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
5748 		sme_event_disassoc(wpa_s, info);
5749 
5750 	wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
5751 			      ie, ie_len, 0);
5752 }
5753 
5754 
wpas_event_deauth(struct wpa_supplicant * wpa_s,struct deauth_info * info)5755 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
5756 			      struct deauth_info *info)
5757 {
5758 	u16 reason_code = 0;
5759 	int locally_generated = 0;
5760 	const u8 *addr = NULL;
5761 	const u8 *ie = NULL;
5762 	size_t ie_len = 0;
5763 
5764 	wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
5765 
5766 	if (info) {
5767 		addr = info->addr;
5768 		ie = info->ie;
5769 		ie_len = info->ie_len;
5770 		reason_code = info->reason_code;
5771 		locally_generated = info->locally_generated;
5772 		wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s",
5773 			reason_code, reason2str(reason_code),
5774 			locally_generated ? " locally_generated=1" : "");
5775 		if (addr) {
5776 			wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
5777 				MAC2STR(addr));
5778 		}
5779 		wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
5780 			    ie, ie_len);
5781 	}
5782 
5783 	wpa_reset_ft_completed(wpa_s->wpa);
5784 
5785 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
5786 		sme_event_deauth(wpa_s, info);
5787 
5788 	wpas_event_disconnect(wpa_s, addr, reason_code,
5789 			      locally_generated, ie, ie_len, 1);
5790 }
5791 
5792 
reg_init_str(enum reg_change_initiator init)5793 static const char * reg_init_str(enum reg_change_initiator init)
5794 {
5795 	switch (init) {
5796 	case REGDOM_SET_BY_CORE:
5797 		return "CORE";
5798 	case REGDOM_SET_BY_USER:
5799 		return "USER";
5800 	case REGDOM_SET_BY_DRIVER:
5801 		return "DRIVER";
5802 	case REGDOM_SET_BY_COUNTRY_IE:
5803 		return "COUNTRY_IE";
5804 	case REGDOM_BEACON_HINT:
5805 		return "BEACON_HINT";
5806 	}
5807 	return "?";
5808 }
5809 
5810 
reg_type_str(enum reg_type type)5811 static const char * reg_type_str(enum reg_type type)
5812 {
5813 	switch (type) {
5814 	case REGDOM_TYPE_UNKNOWN:
5815 		return "UNKNOWN";
5816 	case REGDOM_TYPE_COUNTRY:
5817 		return "COUNTRY";
5818 	case REGDOM_TYPE_WORLD:
5819 		return "WORLD";
5820 	case REGDOM_TYPE_CUSTOM_WORLD:
5821 		return "CUSTOM_WORLD";
5822 	case REGDOM_TYPE_INTERSECTION:
5823 		return "INTERSECTION";
5824 	}
5825 	return "?";
5826 }
5827 
5828 
wpas_beacon_hint(struct wpa_supplicant * wpa_s,const char * title,struct frequency_attrs * attrs)5829 static void wpas_beacon_hint(struct wpa_supplicant *wpa_s, const char *title,
5830 			     struct frequency_attrs *attrs)
5831 {
5832 	if (!attrs->freq)
5833 		return;
5834 	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_BEACON_HINT
5835 		"%s freq=%u max_tx_power=%u%s%s%s",
5836 		title, attrs->freq, attrs->max_tx_power,
5837 		attrs->disabled ? " disabled=1" : "",
5838 		attrs->no_ir ? " no_ir=1" : "",
5839 		attrs->radar ? " radar=1" : "");
5840 }
5841 
5842 
wpa_supplicant_update_channel_list(struct wpa_supplicant * wpa_s,struct channel_list_changed * info)5843 void wpa_supplicant_update_channel_list(struct wpa_supplicant *wpa_s,
5844 					struct channel_list_changed *info)
5845 {
5846 	struct wpa_supplicant *ifs;
5847 	u8 dfs_domain;
5848 
5849 	/*
5850 	 * To allow backwards compatibility with higher level layers that
5851 	 * assumed the REGDOM_CHANGE event is sent over the initially added
5852 	 * interface. Find the highest parent of this interface and use it to
5853 	 * send the event.
5854 	 */
5855 	for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
5856 		;
5857 
5858 	if (info) {
5859 		wpa_msg(ifs, MSG_INFO,
5860 			WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
5861 			reg_init_str(info->initiator), reg_type_str(info->type),
5862 			info->alpha2[0] ? " alpha2=" : "",
5863 			info->alpha2[0] ? info->alpha2 : "");
5864 
5865 		if (info->initiator == REGDOM_BEACON_HINT) {
5866 			wpas_beacon_hint(ifs, "before",
5867 					 &info->beacon_hint_before);
5868 			wpas_beacon_hint(ifs, "after",
5869 					 &info->beacon_hint_after);
5870 		}
5871 	}
5872 
5873 	if (wpa_s->drv_priv == NULL)
5874 		return; /* Ignore event during drv initialization */
5875 
5876 	dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
5877 			 radio_list) {
5878 		bool was_6ghz_enabled;
5879 		char alpha2[3];
5880 
5881 		wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
5882 			   ifs->ifname);
5883 		if (info && info->alpha2[0] &&
5884 		    info->type == REGDOM_TYPE_COUNTRY) {
5885 			ifs->device_country[0] = info->alpha2[0];
5886 			ifs->device_country[1] = info->alpha2[1];
5887 			ifs->device_country[2] = '\0';
5888 			ifs->device_country_set = true;
5889 		}
5890 		free_hw_features(ifs);
5891 		ifs->hw.modes = wpa_drv_get_hw_feature_data(
5892 			ifs, &ifs->hw.num_modes, &ifs->hw.flags, &dfs_domain,
5893 			alpha2, sizeof(alpha2));
5894 
5895 		/* Keep hw_dfs_domain in sync with the latest driver data */
5896 		ifs->hw_dfs_domain = dfs_domain;
5897 
5898 		/*
5899 		 * If device_country was not set via a REGDOM_TYPE_COUNTRY
5900 		 * event (e.g., on Android where the country is pre-configured
5901 		 * before wpa_supplicant starts and no regdom change event is
5902 		 * sent), populate it from the alpha2 returned by the driver.
5903 		 */
5904 		if (!ifs->device_country_set && alpha2[0] && alpha2[1]) {
5905 			ifs->device_country[0] = alpha2[0];
5906 			ifs->device_country[1] = alpha2[1];
5907 			ifs->device_country[2] = '\0';
5908 			ifs->device_country_set = true;
5909 			wpa_printf(MSG_DEBUG,
5910 				   "%s: Device country code set to '%s' from hw feature data",
5911 				   ifs->ifname, ifs->device_country);
5912 		}
5913 
5914 		was_6ghz_enabled = ifs->is_6ghz_enabled;
5915 		ifs->is_6ghz_enabled = wpas_is_6ghz_supported(ifs, true);
5916 
5917 		/* Restart PNO/sched_scan with updated channel list */
5918 		if (ifs->pno) {
5919 			wpas_stop_pno(ifs);
5920 			wpas_start_pno(ifs);
5921 		} else if (ifs->sched_scanning && !ifs->pno_sched_pending) {
5922 			wpa_dbg(ifs, MSG_DEBUG,
5923 				"Channel list changed - restart sched_scan");
5924 			wpas_scan_restart_sched_scan(ifs);
5925 		} else if (!was_6ghz_enabled && ifs->is_6ghz_enabled) {
5926 			wpa_dbg(ifs, MSG_INFO,
5927 				"Channel list changed: 6 GHz was enabled");
5928 
5929 			ifs->crossed_6ghz_dom = true;
5930 		}
5931 	}
5932 
5933 	wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
5934 }
5935 
5936 
wpas_event_rx_mgmt_action(struct wpa_supplicant * wpa_s,const u8 * frame,size_t len,int freq,int rssi)5937 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
5938 				      const u8 *frame, size_t len, int freq,
5939 				      int rssi)
5940 {
5941 	const struct ieee80211_mgmt *mgmt;
5942 	const u8 *payload;
5943 	size_t plen;
5944 	u8 category;
5945 
5946 	if (len < IEEE80211_HDRLEN + 2)
5947 		return;
5948 
5949 	mgmt = (const struct ieee80211_mgmt *) frame;
5950 	payload = frame + IEEE80211_HDRLEN;
5951 	category = *payload++;
5952 	plen = len - IEEE80211_HDRLEN - 1;
5953 
5954 	wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
5955 		" Category=%u DataLen=%d freq=%d MHz",
5956 		MAC2STR(mgmt->sa), category, (int) plen, freq);
5957 
5958 #ifndef CONFIG_NO_WMM_AC
5959 	if (category == WLAN_ACTION_WMM) {
5960 		wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
5961 		return;
5962 	}
5963 #endif /* CONFIG_NO_WMM_AC */
5964 
5965 #ifdef CONFIG_IEEE80211R
5966 	if (category == WLAN_ACTION_FT) {
5967 		ft_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
5968 		return;
5969 	}
5970 #endif /* CONFIG_IEEE80211R */
5971 
5972 #ifdef CONFIG_SME
5973 	if (category == WLAN_ACTION_SA_QUERY) {
5974 		sme_sa_query_rx(wpa_s, mgmt->da, mgmt->sa, payload, plen);
5975 		return;
5976 	}
5977 #endif /* CONFIG_SME */
5978 
5979 #ifdef CONFIG_WNM
5980 	if (mgmt->u.action.category == WLAN_ACTION_WNM) {
5981 		ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
5982 		return;
5983 	}
5984 #endif /* CONFIG_WNM */
5985 
5986 #ifdef CONFIG_GAS
5987 	if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
5988 	     mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
5989 	    gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
5990 			 mgmt->u.action.category,
5991 			 payload, plen, freq) == 0)
5992 		return;
5993 #endif /* CONFIG_GAS */
5994 
5995 #ifdef CONFIG_GAS_SERVER
5996 	if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
5997 	     mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
5998 	    gas_server_rx(wpa_s->gas_server, mgmt->da, mgmt->sa, mgmt->bssid,
5999 			  mgmt->u.action.category,
6000 			  payload, plen, freq) == 0)
6001 		return;
6002 #endif /* CONFIG_GAS_SERVER */
6003 
6004 #ifdef CONFIG_TDLS
6005 	if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
6006 	    payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
6007 		wpa_dbg(wpa_s, MSG_DEBUG,
6008 			"TDLS: Received Discovery Response from " MACSTR,
6009 			MAC2STR(mgmt->sa));
6010 		if (wpa_s->valid_links &&
6011 		    wpa_tdls_process_discovery_response(wpa_s->wpa, mgmt->sa,
6012 							&payload[1], plen - 1))
6013 			wpa_dbg(wpa_s, MSG_ERROR,
6014 				"TDLS: Discovery Response process failed for "
6015 				MACSTR, MAC2STR(mgmt->sa));
6016 		return;
6017 	}
6018 #endif /* CONFIG_TDLS */
6019 
6020 #ifdef CONFIG_INTERWORKING
6021 	if (category == WLAN_ACTION_QOS && plen >= 1 &&
6022 	    payload[0] == QOS_QOS_MAP_CONFIG) {
6023 		const u8 *pos = payload + 1;
6024 		size_t qlen = plen - 1;
6025 
6026 		if (is_multicast_ether_addr(mgmt->da)) {
6027 			wpa_printf(MSG_DEBUG,
6028 				   "Interworking: Ignore group-addressed Qos Map Configure frame (A1="
6029 				   MACSTR " A2=" MACSTR ")",
6030 				   MAC2STR(mgmt->da), MAC2STR(mgmt->sa));
6031 			return;
6032 		}
6033 
6034 		wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
6035 			MACSTR, MAC2STR(mgmt->sa));
6036 		if (ether_addr_equal(mgmt->sa, wpa_s->bssid) &&
6037 		    qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
6038 		    pos[1] <= qlen - 2 && pos[1] >= 16)
6039 			wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
6040 		return;
6041 	}
6042 #endif /* CONFIG_INTERWORKING */
6043 
6044 #ifndef CONFIG_NO_RRM
6045 	if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
6046 	    payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
6047 		wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
6048 							  mgmt->da,
6049 							  payload + 1,
6050 							  plen - 1);
6051 		return;
6052 	}
6053 
6054 	if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
6055 	    payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
6056 		wpas_rrm_process_neighbor_rep(wpa_s, mgmt->da, mgmt->sa,
6057 					      payload + 1, plen - 1);
6058 		return;
6059 	}
6060 
6061 	if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
6062 	    payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
6063 		wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
6064 							 payload + 1, plen - 1,
6065 							 rssi);
6066 		return;
6067 	}
6068 #endif /* CONFIG_NO_RRM */
6069 
6070 #ifdef CONFIG_FST
6071 	if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
6072 		fst_rx_action(wpa_s->fst, mgmt, len);
6073 		return;
6074 	}
6075 #endif /* CONFIG_FST */
6076 
6077 	if ((category == WLAN_ACTION_PUBLIC ||
6078 	     category == WLAN_ACTION_PROTECTED_DUAL) &&
6079 	    plen >= 5 && payload[0] == WLAN_PA_VENDOR_SPECIFIC) {
6080 		/* Drop unprotected unicast NAN frames from paired peers */
6081 		if (category == WLAN_ACTION_PUBLIC &&
6082 		    !is_multicast_ether_addr(mgmt->da) &&
6083 		    wpas_nan_is_peer_paired(wpa_s, mgmt->sa))
6084 			return;
6085 
6086 		if  (WPA_GET_BE32(&payload[1]) == NAN_SDF_VENDOR_TYPE) {
6087 			payload += 5;
6088 			plen -= 5;
6089 			wpas_nan_de_rx_sdf(wpa_s, mgmt->sa, mgmt->bssid, freq,
6090 					   payload, plen, rssi);
6091 			return;
6092 		}
6093 
6094 		if (WPA_GET_BE32(&payload[1]) == NAN_NAF_VENDOR_TYPE) {
6095 			wpas_nan_rx_naf(wpa_s, mgmt, len);
6096 			return;
6097 		}
6098 	}
6099 
6100 #ifdef CONFIG_DPP
6101 	if (category == WLAN_ACTION_PUBLIC && plen >= 5 &&
6102 	    payload[0] == WLAN_PA_VENDOR_SPECIFIC &&
6103 	    WPA_GET_BE24(&payload[1]) == OUI_WFA &&
6104 	    payload[4] == DPP_OUI_TYPE) {
6105 		payload++;
6106 		plen--;
6107 		wpas_dpp_rx_action(wpa_s, mgmt->sa, payload, plen, freq);
6108 		return;
6109 	}
6110 #endif /* CONFIG_DPP */
6111 
6112 #ifndef CONFIG_NO_ROBUST_AV
6113 	if (category == WLAN_ACTION_ROBUST_AV_STREAMING &&
6114 	    payload[0] == ROBUST_AV_SCS_RESP) {
6115 		wpas_handle_robust_av_scs_recv_action(wpa_s, mgmt->da, mgmt->sa,
6116 						      payload + 1, plen - 1);
6117 		return;
6118 	}
6119 
6120 	if (category == WLAN_ACTION_ROBUST_AV_STREAMING &&
6121 	    payload[0] == ROBUST_AV_MSCS_RESP) {
6122 		wpas_handle_robust_av_recv_action(wpa_s, mgmt->da, mgmt->sa,
6123 						  payload + 1, plen - 1);
6124 		return;
6125 	}
6126 
6127 	if (category == WLAN_ACTION_VENDOR_SPECIFIC_PROTECTED && plen > 4 &&
6128 	    WPA_GET_BE32(payload) == QM_ACTION_VENDOR_TYPE) {
6129 		wpas_handle_qos_mgmt_recv_action(wpa_s, mgmt->da, mgmt->sa,
6130 						 payload + 4, plen - 4);
6131 		return;
6132 	}
6133 #endif /* CONFIG_NO_ROBUST_AV */
6134 
6135 	wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
6136 			   category, payload, plen, freq);
6137 	if (wpa_s->ifmsh)
6138 		mesh_mpm_action_rx(wpa_s, mgmt, len);
6139 }
6140 
6141 
wpa_supplicant_notify_avoid_freq(struct wpa_supplicant * wpa_s,union wpa_event_data * event)6142 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
6143 					     union wpa_event_data *event)
6144 {
6145 	struct wpa_freq_range_list *list;
6146 	char *str = NULL;
6147 
6148 	list = &event->freq_range;
6149 
6150 	if (list->num)
6151 		str = freq_range_list_str(list);
6152 	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
6153 		str ? str : "");
6154 
6155 #ifdef CONFIG_P2P
6156 	if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
6157 		wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
6158 			__func__);
6159 	} else {
6160 		wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
6161 
6162 		/*
6163 		 * The update channel flow will also take care of moving a GO
6164 		 * from the unsafe frequency if needed.
6165 		 */
6166 		wpas_p2p_update_channel_list(wpa_s,
6167 					     WPAS_P2P_CHANNEL_UPDATE_AVOID);
6168 	}
6169 #endif /* CONFIG_P2P */
6170 
6171 	os_free(str);
6172 }
6173 
6174 
wpa_supplicant_event_port_authorized(struct wpa_supplicant * wpa_s)6175 static void wpa_supplicant_event_port_authorized(struct wpa_supplicant *wpa_s)
6176 {
6177 	if (wpa_s->wpa_state == WPA_ASSOCIATED) {
6178 		wpa_supplicant_cancel_auth_timeout(wpa_s);
6179 		wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
6180 		eapol_sm_notify_portValid(wpa_s->eapol, true);
6181 		eapol_sm_notify_eap_success(wpa_s->eapol, true);
6182 		wpa_s->drv_authorized_port = 1;
6183 	}
6184 }
6185 
6186 
wpas_event_cac_ms(const struct wpa_supplicant * wpa_s,int freq)6187 static unsigned int wpas_event_cac_ms(const struct wpa_supplicant *wpa_s,
6188 				      int freq)
6189 {
6190 	size_t i;
6191 	int j;
6192 
6193 	for (i = 0; i < wpa_s->hw.num_modes; i++) {
6194 		const struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i];
6195 
6196 		for (j = 0; j < mode->num_channels; j++) {
6197 			const struct hostapd_channel_data *chan;
6198 
6199 			chan = &mode->channels[j];
6200 			if (chan->freq == freq)
6201 				return chan->dfs_cac_ms;
6202 		}
6203 	}
6204 
6205 	return 0;
6206 }
6207 
6208 
wpas_event_dfs_cac_started(struct wpa_supplicant * wpa_s,struct dfs_event * radar)6209 static void wpas_event_dfs_cac_started(struct wpa_supplicant *wpa_s,
6210 				       struct dfs_event *radar)
6211 {
6212 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
6213 	if (wpa_s->ap_iface || wpa_s->ifmsh) {
6214 		wpas_ap_event_dfs_cac_started(wpa_s, radar);
6215 	} else
6216 #endif /* NEED_AP_MLME && CONFIG_AP */
6217 	{
6218 		unsigned int cac_time = wpas_event_cac_ms(wpa_s, radar->freq);
6219 
6220 		cac_time /= 1000; /* convert from ms to sec */
6221 		if (!cac_time)
6222 			cac_time = 10 * 60; /* max timeout: 10 minutes */
6223 
6224 		/* Restart auth timeout: CAC time added to initial timeout */
6225 		wpas_auth_timeout_restart(wpa_s, cac_time);
6226 	}
6227 }
6228 
6229 
wpas_event_dfs_cac_finished(struct wpa_supplicant * wpa_s,struct dfs_event * radar)6230 static void wpas_event_dfs_cac_finished(struct wpa_supplicant *wpa_s,
6231 					struct dfs_event *radar)
6232 {
6233 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
6234 	if (wpa_s->ap_iface || wpa_s->ifmsh) {
6235 		wpas_ap_event_dfs_cac_finished(wpa_s, radar);
6236 	} else
6237 #endif /* NEED_AP_MLME && CONFIG_AP */
6238 	{
6239 		/* Restart auth timeout with original value after CAC is
6240 		 * finished */
6241 		wpas_auth_timeout_restart(wpa_s, 0);
6242 	}
6243 }
6244 
6245 
wpas_event_dfs_cac_aborted(struct wpa_supplicant * wpa_s,struct dfs_event * radar)6246 static void wpas_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s,
6247 				       struct dfs_event *radar)
6248 {
6249 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
6250 	if (wpa_s->ap_iface || wpa_s->ifmsh) {
6251 		wpas_ap_event_dfs_cac_aborted(wpa_s, radar);
6252 	} else
6253 #endif /* NEED_AP_MLME && CONFIG_AP */
6254 	{
6255 		/* Restart auth timeout with original value after CAC is
6256 		 * aborted */
6257 		wpas_auth_timeout_restart(wpa_s, 0);
6258 	}
6259 }
6260 
6261 
wpa_supplicant_event_assoc_auth(struct wpa_supplicant * wpa_s,union wpa_event_data * data)6262 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
6263 					    union wpa_event_data *data)
6264 {
6265 	wpa_dbg(wpa_s, MSG_DEBUG,
6266 		"Connection authorized by device, previous state %d",
6267 		wpa_s->wpa_state);
6268 
6269 	wpa_supplicant_event_port_authorized(wpa_s);
6270 
6271 	wpa_s->last_eapol_matches_bssid = 1;
6272 
6273 	wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
6274 	wpa_sm_set_ptk_kck_kek(wpa_s->wpa, RSN_HASH_NOT_SPECIFIED,
6275 			       data->assoc_info.ptk_kck,
6276 			       data->assoc_info.ptk_kck_len,
6277 			       data->assoc_info.ptk_kek,
6278 			       data->assoc_info.ptk_kek_len);
6279 #ifdef CONFIG_FILS
6280 	if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
6281 		struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
6282 		const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
6283 
6284 		/* Update ERP next sequence number */
6285 		eapol_sm_update_erp_next_seq_num(
6286 			wpa_s->eapol, data->assoc_info.fils_erp_next_seq_num);
6287 
6288 		if (data->assoc_info.fils_pmk && data->assoc_info.fils_pmkid) {
6289 			/* Add the new PMK and PMKID to the PMKSA cache */
6290 			wpa_sm_pmksa_cache_add(wpa_s->wpa,
6291 					       data->assoc_info.fils_pmk,
6292 					       data->assoc_info.fils_pmk_len,
6293 					       data->assoc_info.fils_pmkid,
6294 					       wpa_s->valid_links ?
6295 					       wpa_s->ap_mld_addr :
6296 					       wpa_s->bssid,
6297 					       fils_cache_id);
6298 		} else if (data->assoc_info.fils_pmkid) {
6299 			/* Update the current PMKSA used for this connection */
6300 			pmksa_cache_set_current(wpa_s->wpa,
6301 						data->assoc_info.fils_pmkid,
6302 						NULL, NULL, 0, NULL, 0, true);
6303 		}
6304 	}
6305 #endif /* CONFIG_FILS */
6306 }
6307 
6308 
connect_fail_reason(enum sta_connect_fail_reason_codes code)6309 static const char * connect_fail_reason(enum sta_connect_fail_reason_codes code)
6310 {
6311 	switch (code) {
6312 	case STA_CONNECT_FAIL_REASON_UNSPECIFIED:
6313 		return "";
6314 	case STA_CONNECT_FAIL_REASON_NO_BSS_FOUND:
6315 		return "no_bss_found";
6316 	case STA_CONNECT_FAIL_REASON_AUTH_TX_FAIL:
6317 		return "auth_tx_fail";
6318 	case STA_CONNECT_FAIL_REASON_AUTH_NO_ACK_RECEIVED:
6319 		return "auth_no_ack_received";
6320 	case STA_CONNECT_FAIL_REASON_AUTH_NO_RESP_RECEIVED:
6321 		return "auth_no_resp_received";
6322 	case STA_CONNECT_FAIL_REASON_ASSOC_REQ_TX_FAIL:
6323 		return "assoc_req_tx_fail";
6324 	case STA_CONNECT_FAIL_REASON_ASSOC_NO_ACK_RECEIVED:
6325 		return "assoc_no_ack_received";
6326 	case STA_CONNECT_FAIL_REASON_ASSOC_NO_RESP_RECEIVED:
6327 		return "assoc_no_resp_received";
6328 	default:
6329 		return "unknown_reason";
6330 	}
6331 }
6332 
6333 
wpas_event_assoc_reject(struct wpa_supplicant * wpa_s,union wpa_event_data * data)6334 static void wpas_event_assoc_reject(struct wpa_supplicant *wpa_s,
6335 				    union wpa_event_data *data)
6336 {
6337 	const u8 *bssid = data->assoc_reject.bssid;
6338 	struct ieee802_11_elems elems;
6339 	struct ml_sta_link_info ml_info[MAX_NUM_MLD_LINKS];
6340 	const u8 *link_bssids[MAX_NUM_MLD_LINKS + 1];
6341 #ifdef CONFIG_MBO
6342 	struct wpa_bss *reject_bss;
6343 #endif /* CONFIG_MBO */
6344 
6345 	if (!bssid || is_zero_ether_addr(bssid))
6346 		bssid = wpa_s->pending_bssid;
6347 #ifdef CONFIG_MBO
6348 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
6349 		reject_bss = wpa_s->current_bss;
6350 	else
6351 		reject_bss = wpa_bss_get_bssid(wpa_s, bssid);
6352 #endif /* CONFIG_MBO */
6353 
6354 	if (data->assoc_reject.bssid)
6355 		wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
6356 			"bssid=" MACSTR	" status_code=%u%s%s%s%s%s",
6357 			MAC2STR(data->assoc_reject.bssid),
6358 			data->assoc_reject.status_code,
6359 			data->assoc_reject.timed_out ? " timeout" : "",
6360 			data->assoc_reject.timeout_reason ? "=" : "",
6361 			data->assoc_reject.timeout_reason ?
6362 			data->assoc_reject.timeout_reason : "",
6363 			data->assoc_reject.reason_code !=
6364 			STA_CONNECT_FAIL_REASON_UNSPECIFIED ?
6365 			" qca_driver_reason=" : "",
6366 			connect_fail_reason(data->assoc_reject.reason_code));
6367 	else
6368 		wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
6369 			"status_code=%u%s%s%s%s%s",
6370 			data->assoc_reject.status_code,
6371 			data->assoc_reject.timed_out ? " timeout" : "",
6372 			data->assoc_reject.timeout_reason ? "=" : "",
6373 			data->assoc_reject.timeout_reason ?
6374 			data->assoc_reject.timeout_reason : "",
6375 			data->assoc_reject.reason_code !=
6376 			STA_CONNECT_FAIL_REASON_UNSPECIFIED ?
6377 			" qca_driver_reason=" : "",
6378 			connect_fail_reason(data->assoc_reject.reason_code));
6379 	wpa_s->assoc_status_code = data->assoc_reject.status_code;
6380 	wpas_notify_assoc_status_code(wpa_s);
6381 
6382 #ifdef CONFIG_OWE
6383 	if (data->assoc_reject.status_code ==
6384 	    WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED &&
6385 	    wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
6386 	    wpa_s->current_ssid &&
6387 	    wpa_s->current_ssid->owe_group == 0 &&
6388 	    wpa_s->last_owe_group != 21) {
6389 		struct wpa_ssid *ssid = wpa_s->current_ssid;
6390 		struct wpa_bss *bss = wpa_s->current_bss;
6391 
6392 		if (!bss) {
6393 			bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
6394 			if (!bss) {
6395 				wpas_connection_failed(wpa_s, bssid, NULL);
6396 				wpa_supplicant_mark_disassoc(wpa_s);
6397 				return;
6398 			}
6399 		}
6400 		wpa_printf(MSG_DEBUG, "OWE: Try next supported DH group");
6401 		wpas_connect_work_done(wpa_s);
6402 		wpa_supplicant_mark_disassoc(wpa_s);
6403 		wpa_supplicant_connect(wpa_s, bss, ssid);
6404 		return;
6405 	}
6406 #endif /* CONFIG_OWE */
6407 
6408 #ifdef CONFIG_DPP2
6409 	/* Try to follow AP's PFS policy. WLAN_STATUS_ASSOC_DENIED_UNSPEC is
6410 	 * the status code defined in the DPP R2 tech spec.
6411 	 * WLAN_STATUS_INVALID_AKMP is addressed in the same manner as an
6412 	 * interoperability workaround with older hostapd implementation. */
6413 	if (DPP_VERSION > 1 && wpa_s->current_ssid &&
6414 	    (wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP ||
6415 	     ((wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
6416 	      wpa_s->key_mgmt == WPA_KEY_MGMT_DPP)) &&
6417 	    wpa_s->current_ssid->dpp_pfs == 0 &&
6418 	    (data->assoc_reject.status_code ==
6419 	     WLAN_STATUS_ASSOC_DENIED_UNSPEC ||
6420 	     data->assoc_reject.status_code == WLAN_STATUS_INVALID_AKMP)) {
6421 		struct wpa_ssid *ssid = wpa_s->current_ssid;
6422 		struct wpa_bss *bss = wpa_s->current_bss;
6423 
6424 		wpa_s->current_ssid->dpp_pfs_fallback ^= 1;
6425 		if (!bss)
6426 			bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
6427 		if (!bss || wpa_s->dpp_pfs_fallback) {
6428 			wpa_printf(MSG_DEBUG,
6429 				   "DPP: Updated PFS policy for next try");
6430 			wpas_connection_failed(wpa_s, bssid, NULL);
6431 			wpa_supplicant_mark_disassoc(wpa_s);
6432 			return;
6433 		}
6434 		wpa_printf(MSG_DEBUG, "DPP: Try again with updated PFS policy");
6435 		wpa_s->dpp_pfs_fallback = 1;
6436 		wpas_connect_work_done(wpa_s);
6437 		wpa_supplicant_mark_disassoc(wpa_s);
6438 		wpa_supplicant_connect(wpa_s, bss, ssid);
6439 		return;
6440 	}
6441 #endif /* CONFIG_DPP2 */
6442 
6443 #ifdef CONFIG_MBO
6444 	if (data->assoc_reject.status_code ==
6445 	    WLAN_STATUS_DENIED_POOR_CHANNEL_CONDITIONS &&
6446 	    reject_bss && data->assoc_reject.resp_ies) {
6447 		const u8 *rssi_rej;
6448 
6449 		rssi_rej = mbo_get_attr_from_ies(
6450 			data->assoc_reject.resp_ies,
6451 			data->assoc_reject.resp_ies_len,
6452 			OCE_ATTR_ID_RSSI_BASED_ASSOC_REJECT);
6453 		if (rssi_rej && rssi_rej[1] == 2) {
6454 			wpa_printf(MSG_DEBUG,
6455 				   "OCE: RSSI-based association rejection from "
6456 				   MACSTR " (Delta RSSI: %u, Retry Delay: %u)",
6457 				   MAC2STR(reject_bss->bssid),
6458 				   rssi_rej[2], rssi_rej[3]);
6459 			wpa_bss_tmp_disallow(wpa_s,
6460 					     reject_bss->bssid,
6461 					     rssi_rej[3],
6462 					     rssi_rej[2] + reject_bss->level);
6463 		}
6464 	}
6465 #endif /* CONFIG_MBO */
6466 
6467 	/* Check for other failed links in the response */
6468 	os_memset(link_bssids, 0, sizeof(link_bssids));
6469 	if (ieee802_11_parse_elems(data->assoc_reject.resp_ies,
6470 				   data->assoc_reject.resp_ies_len,
6471 				   &elems, 1) != ParseFailed) {
6472 		unsigned int n_links, i, idx;
6473 
6474 		idx = 0;
6475 		n_links = wpas_ml_parse_assoc(wpa_s, &elems, ml_info);
6476 
6477 		for (i = 1; i < n_links; i++) {
6478 			/* The status cannot be success here.
6479 			 * Add the link to the failed list if it is reporting
6480 			 * an error. The only valid "non-error" status is
6481 			 * TX_LINK_NOT_ACCEPTED as that means this link may
6482 			 * still accept an association from us.
6483 			 */
6484 			if (ml_info[i].status !=
6485 			    WLAN_STATUS_DENIED_TX_LINK_NOT_ACCEPTED) {
6486 				link_bssids[idx] = ml_info[i].bssid;
6487 				idx++;
6488 			}
6489 		}
6490 	}
6491 
6492 	if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
6493 		sme_event_assoc_reject(wpa_s, data, link_bssids);
6494 		return;
6495 	}
6496 
6497 	/* Driver-based SME cases */
6498 
6499 #ifdef CONFIG_SAE
6500 	if (wpa_s->current_ssid &&
6501 	    wpa_key_mgmt_sae(wpa_s->current_ssid->key_mgmt) &&
6502 	    !data->assoc_reject.timed_out) {
6503 		wpa_dbg(wpa_s, MSG_DEBUG, "SAE: Drop PMKSA cache entry");
6504 		wpa_sm_aborted_cached(wpa_s->wpa);
6505 		wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
6506 	}
6507 #endif /* CONFIG_SAE */
6508 
6509 #ifdef CONFIG_DPP
6510 	if (wpa_s->current_ssid &&
6511 	    wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP &&
6512 	    !data->assoc_reject.timed_out) {
6513 		wpa_dbg(wpa_s, MSG_DEBUG, "DPP: Drop PMKSA cache entry");
6514 		wpa_sm_aborted_cached(wpa_s->wpa);
6515 		wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
6516 	}
6517 #endif /* CONFIG_DPP */
6518 
6519 #ifdef CONFIG_FILS
6520 	/* Update ERP next sequence number */
6521 	if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
6522 		fils_pmksa_cache_flush(wpa_s);
6523 		eapol_sm_update_erp_next_seq_num(
6524 			wpa_s->eapol,
6525 			data->assoc_reject.fils_erp_next_seq_num);
6526 		fils_connection_failure(wpa_s);
6527 	}
6528 #endif /* CONFIG_FILS */
6529 
6530 	wpas_connection_failed(wpa_s, bssid, link_bssids);
6531 	wpa_supplicant_mark_disassoc(wpa_s);
6532 }
6533 
6534 
wpas_event_unprot_beacon(struct wpa_supplicant * wpa_s,struct unprot_beacon * data)6535 static void wpas_event_unprot_beacon(struct wpa_supplicant *wpa_s,
6536 				     struct unprot_beacon *data)
6537 {
6538 	struct wpabuf *buf;
6539 	int res;
6540 
6541 	if (!data || wpa_s->wpa_state != WPA_COMPLETED ||
6542 	    !ether_addr_equal(data->sa, wpa_s->bssid))
6543 		return;
6544 	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_UNPROT_BEACON MACSTR,
6545 		MAC2STR(data->sa));
6546 
6547 	buf = wpabuf_alloc(4);
6548 	if (!buf)
6549 		return;
6550 
6551 	wpabuf_put_u8(buf, WLAN_ACTION_WNM);
6552 	wpabuf_put_u8(buf, WNM_NOTIFICATION_REQ);
6553 	wpabuf_put_u8(buf, 1); /* Dialog Token */
6554 	wpabuf_put_u8(buf, WNM_NOTIF_TYPE_BEACON_PROTECTION_FAILURE);
6555 
6556 	res = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
6557 				  wpa_s->own_addr, wpa_s->bssid,
6558 				  wpabuf_head(buf), wpabuf_len(buf), 0);
6559 	if (res < 0)
6560 		wpa_printf(MSG_DEBUG,
6561 			   "Failed to send WNM-Notification Request frame");
6562 
6563 	wpabuf_free(buf);
6564 }
6565 
6566 
bitmap_to_str(u8 value,char * buf)6567 static const char * bitmap_to_str(u8 value, char *buf)
6568 {
6569 	char *pos = buf;
6570 	int i, k = 0;
6571 
6572 	for (i = 7; i >= 0; i--)
6573 		pos[k++] = (value & BIT(i)) ? '1' : '0';
6574 
6575 	pos[8] = '\0';
6576 	return pos;
6577 }
6578 
6579 
wpas_tid_link_map(struct wpa_supplicant * wpa_s,struct tid_link_map_info * info)6580 static void wpas_tid_link_map(struct wpa_supplicant *wpa_s,
6581 			      struct tid_link_map_info *info)
6582 {
6583 	char map_info[1000], *pos, *end;
6584 	int res, i;
6585 
6586 	pos = map_info;
6587 	end = pos + sizeof(map_info);
6588 	res = os_snprintf(map_info, sizeof(map_info), "default=%d",
6589 			  info->default_map);
6590 	if (os_snprintf_error(end - pos, res))
6591 		return;
6592 	pos += res;
6593 
6594 	if (!info->default_map) {
6595 		for_each_link(info->valid_links, i) {
6596 			char uplink_map_str[9];
6597 			char downlink_map_str[9];
6598 
6599 			bitmap_to_str(info->t2lmap[i].uplink, uplink_map_str);
6600 			bitmap_to_str(info->t2lmap[i].downlink,
6601 				      downlink_map_str);
6602 
6603 			res = os_snprintf(pos, end - pos,
6604 					  " link_id=%d up_link=%s down_link=%s",
6605 					  i, uplink_map_str,
6606 					  downlink_map_str);
6607 			if (os_snprintf_error(end - pos, res))
6608 				return;
6609 			pos += res;
6610 		}
6611 	}
6612 
6613 	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_T2LM_UPDATE "%s", map_info);
6614 }
6615 
6616 
wpas_setup_link_reconfig(struct wpa_supplicant * wpa_s,struct reconfig_info * info)6617 static void wpas_setup_link_reconfig(struct wpa_supplicant *wpa_s,
6618 				     struct reconfig_info *info)
6619 {
6620 	const u8 *key_data = info->resp_ie;
6621 	size_t key_data_len = 0;
6622 	const u8 *ies, *end;
6623 	bool success = false;
6624 	int i;
6625 
6626 	if (!info->added_links) {
6627 		wpa_printf(MSG_INFO, "No links to be added");
6628 		return;
6629 	}
6630 
6631 	if (wpa_drv_get_mlo_info(wpa_s) < 0) {
6632 		wpa_printf(MSG_INFO,
6633 			   "SETUP_LINK_RECONFIG: Failed to set reconfig info to wpa_s");
6634 		return;
6635 	}
6636 
6637 	if (wpa_sm_set_ml_info(wpa_s)) {
6638 		wpa_printf(MSG_ERROR,
6639 			   "SETUP_LINK_RECONFIG: Failed to set reconfig info to wpa_sm");
6640 		return;
6641 	}
6642 
6643 	wpa_hexdump(MSG_DEBUG, "MLD: Reconfiguration Status List",
6644 		    info->status_list, info->count * 3);
6645 	for (i = 0; i < info->count; i++) {
6646 		if (WPA_GET_LE16(info->status_list + i * 3 + 1) ==
6647 		    WLAN_STATUS_SUCCESS)
6648 			success = true;
6649 	}
6650 
6651 	if (!key_data || info->resp_ie_len == 0)
6652 		return;
6653 
6654 	if (success) {
6655 		/* Starting with Group Key Data subfield, Key Data Length
6656 		 * field */
6657 		if (info->resp_ie_len < 1U + key_data[0]) {
6658 			wpa_printf(MSG_INFO,
6659 				   "MLD: Invalid keys in the link setup response");
6660 			return;
6661 		}
6662 
6663 		key_data_len = key_data[0];
6664 		key_data++;
6665 		wpa_hexdump_key(MSG_DEBUG,
6666 				"MLD: Link reconfig resp - Group Key Data",
6667 				key_data, key_data_len);
6668 
6669 		if (wpa_sm_install_mlo_group_keys(wpa_s->wpa, key_data,
6670 						  key_data_len,
6671 						  info->added_links)) {
6672 			wpa_printf(MSG_ERROR,
6673 				   "SETUP_LINK_RECONFIG: Failed to install group keys for added links");
6674 			return;
6675 		}
6676 	}
6677 
6678 	ies = key_data + key_data_len;
6679 	end = info->resp_ie + info->resp_ie_len;
6680 	wpa_hexdump(MSG_DEBUG, "MLD: Link reconfig resp - IEs", ies, end - ies);
6681 
6682 	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_LINK_RECONFIG "valid_links=0x%x",
6683 		wpa_s->valid_links);
6684 }
6685 
6686 
wpas_link_reconfig(struct wpa_supplicant * wpa_s)6687 static void wpas_link_reconfig(struct wpa_supplicant *wpa_s)
6688 {
6689 	u8 bssid[ETH_ALEN];
6690 
6691 	if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
6692 		wpa_printf(MSG_ERROR, "LINK_RECONFIG: Failed to get BSSID");
6693 		wpa_supplicant_deauthenticate(wpa_s,
6694 					      WLAN_REASON_DEAUTH_LEAVING);
6695 		return;
6696 	}
6697 
6698 	if (!ether_addr_equal(bssid, wpa_s->bssid)) {
6699 		os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
6700 		wpa_supplicant_update_current_bss(wpa_s, wpa_s->bssid);
6701 		wpas_notify_bssid_changed(wpa_s);
6702 	}
6703 
6704 	if (wpa_drv_get_mlo_info(wpa_s) < 0) {
6705 		wpa_printf(MSG_ERROR,
6706 			   "LINK_RECONFIG: Failed to get MLO connection info");
6707 		wpa_supplicant_deauthenticate(wpa_s,
6708 					      WLAN_REASON_DEAUTH_LEAVING);
6709 		return;
6710 	}
6711 
6712 	if (wpa_sm_set_ml_info(wpa_s)) {
6713 		wpa_printf(MSG_ERROR,
6714 			   "LINK_RECONFIG: Failed to set MLO connection info to wpa_sm");
6715 		wpa_supplicant_deauthenticate(wpa_s,
6716 					      WLAN_REASON_DEAUTH_LEAVING);
6717 		return;
6718 	}
6719 
6720 	wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_LINK_RECONFIG "valid_links=0x%x",
6721 		wpa_s->valid_links);
6722 }
6723 
6724 
6725 #ifdef CONFIG_PASN
wpas_pasn_auth(struct wpa_supplicant * wpa_s,const struct ieee80211_mgmt * mgmt,size_t len,int freq)6726 static int wpas_pasn_auth(struct wpa_supplicant *wpa_s,
6727 			  const struct ieee80211_mgmt *mgmt, size_t len,
6728 			  int freq)
6729 {
6730 	struct ieee802_11_elems elems;
6731 	size_t auth_length;
6732 
6733 	auth_length = IEEE80211_HDRLEN + sizeof(mgmt->u.auth);
6734 
6735 	if (len < auth_length) {
6736 		wpa_printf(MSG_DEBUG, "PASN: Too short Authentication frame");
6737 		return -2;
6738 	}
6739 
6740 	if (le_to_host16(mgmt->u.auth.auth_alg) != WLAN_AUTH_PASN) {
6741 		wpa_printf(MSG_DEBUG,
6742 			   "PASN: Not a PASN Authentication frame, skip frame parsing");
6743 		return -2;
6744 	}
6745 
6746 	if (ieee802_11_parse_elems(mgmt->u.auth.variable,
6747 				   len - offsetof(struct ieee80211_mgmt,
6748 						  u.auth.variable),
6749 				   &elems, 1) == ParseFailed) {
6750 		wpa_printf(MSG_DEBUG,
6751 			   "PASN: Failed parsing Authentication frame");
6752 		return -2;
6753 	}
6754 
6755 #ifdef CONFIG_P2P
6756 	if (elems.p2p2_ie && elems.p2p2_ie_len)
6757 		return wpas_p2p_pasn_auth_rx(wpa_s, mgmt, len, freq);
6758 #endif /* CONFIG_P2P */
6759 #ifdef CONFIG_PR
6760 	if (elems.proximity_ranging && elems.proximity_ranging_len)
6761 		return wpas_pr_pasn_auth_rx(wpa_s, mgmt, len, freq);
6762 #endif /* CONFIG_PR */
6763 #ifdef CONFIG_NAN
6764 	if (wpa_s->nan_mgmt && elems.nan_ie && elems.nan_len)
6765 		return wpas_nan_pasn_auth_rx(wpa_s, mgmt, len);
6766 #endif /* CONFIG_NAN */
6767 
6768 	return wpas_pasn_auth_rx(wpa_s, mgmt, len);
6769 }
6770 #endif /* CONFIG_PASN */
6771 
6772 
wpa_supplicant_event(void * ctx,enum wpa_event_type event,union wpa_event_data * data)6773 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
6774 			  union wpa_event_data *data)
6775 {
6776 	struct wpa_supplicant *wpa_s = ctx;
6777 	int resched;
6778 	struct os_reltime age, clear_at;
6779 #ifndef CONFIG_NO_STDOUT_DEBUG
6780 	int level = MSG_DEBUG;
6781 #endif /* CONFIG_NO_STDOUT_DEBUG */
6782 
6783 	if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
6784 	    event != EVENT_INTERFACE_ENABLED &&
6785 	    event != EVENT_INTERFACE_STATUS &&
6786 	    event != EVENT_SCAN_RESULTS &&
6787 	    event != EVENT_SCHED_SCAN_STOPPED) {
6788 		wpa_dbg(wpa_s, MSG_DEBUG,
6789 			"Ignore event %s (%d) while interface is disabled",
6790 			event_to_string(event), event);
6791 		return;
6792 	}
6793 
6794 #ifndef CONFIG_NO_STDOUT_DEBUG
6795 	if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
6796 		const struct ieee80211_hdr *hdr;
6797 		u16 fc;
6798 		hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
6799 		fc = le_to_host16(hdr->frame_control);
6800 		if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6801 		    WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
6802 			level = MSG_EXCESSIVE;
6803 	}
6804 
6805 	wpa_dbg(wpa_s, level, "Event %s (%d) received",
6806 		event_to_string(event), event);
6807 #endif /* CONFIG_NO_STDOUT_DEBUG */
6808 
6809 	switch (event) {
6810 	case EVENT_AUTH:
6811 #ifdef CONFIG_FST
6812 		if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
6813 					  data->auth.ies_len))
6814 			wpa_printf(MSG_DEBUG,
6815 				   "FST: MB IEs updated from auth IE");
6816 #endif /* CONFIG_FST */
6817 		sme_event_auth(wpa_s, data);
6818 		wpa_s->auth_status_code = data->auth.status_code;
6819 		wpas_notify_auth_status_code(wpa_s);
6820 		break;
6821 	case EVENT_ASSOC:
6822 #ifdef CONFIG_TESTING_OPTIONS
6823 		if (wpa_s->ignore_auth_resp) {
6824 			wpa_printf(MSG_INFO,
6825 				   "EVENT_ASSOC - ignore_auth_resp active!");
6826 			break;
6827 		}
6828 		if (wpa_s->testing_resend_assoc) {
6829 			wpa_printf(MSG_INFO,
6830 				   "EVENT_DEAUTH - testing_resend_assoc");
6831 			break;
6832 		}
6833 #endif /* CONFIG_TESTING_OPTIONS */
6834 		if (wpa_s->disconnected) {
6835 			wpa_printf(MSG_INFO,
6836 				   "Ignore unexpected EVENT_ASSOC in disconnected state");
6837 			break;
6838 		}
6839 #ifndef CONFIG_NO_ROBUST_AV
6840 		if (dl_list_len(&wpa_s->active_scs_ids) > 0) {
6841 			wpa_printf(MSG_DEBUG,
6842 				   "SCS rules renegotiation required after roaming");
6843 			wpa_s->scs_reconfigure = true;
6844 		}
6845 #endif /* CONFIG_NO_ROBUST_AV */
6846 		if (wpa_supplicant_event_assoc(wpa_s, data) < 0) {
6847 			wpa_printf(MSG_DEBUG,
6848 				   "Skip assoc_auth handling - disconnected during assoc event processing");
6849 			break;
6850 		}
6851 		wpa_s->assoc_status_code = WLAN_STATUS_SUCCESS;
6852 		if (data &&
6853 		    (data->assoc_info.authorized ||
6854 		     (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
6855 		      wpa_fils_is_completed(wpa_s->wpa))))
6856 			wpa_supplicant_event_assoc_auth(wpa_s, data);
6857 		if (data) {
6858 			wpa_msg(wpa_s, MSG_INFO,
6859 				WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
6860 				data->assoc_info.subnet_status);
6861 		}
6862 		break;
6863 	case EVENT_DISASSOC:
6864 		wpas_event_disassoc(wpa_s,
6865 				    data ? &data->disassoc_info : NULL);
6866 		break;
6867 	case EVENT_DEAUTH:
6868 #ifdef CONFIG_TESTING_OPTIONS
6869 		if (wpa_s->ignore_auth_resp) {
6870 			wpa_printf(MSG_INFO,
6871 				   "EVENT_DEAUTH - ignore_auth_resp active!");
6872 			break;
6873 		}
6874 		if (wpa_s->testing_resend_assoc) {
6875 			wpa_printf(MSG_INFO,
6876 				   "EVENT_DEAUTH - testing_resend_assoc");
6877 			break;
6878 		}
6879 #endif /* CONFIG_TESTING_OPTIONS */
6880 		wpas_event_deauth(wpa_s,
6881 				  data ? &data->deauth_info : NULL);
6882 		break;
6883 	case EVENT_LINK_RECONFIG:
6884 		wpas_link_reconfig(wpa_s);
6885 		break;
6886 	case EVENT_MICHAEL_MIC_FAILURE:
6887 		wpa_supplicant_event_michael_mic_failure(wpa_s, data);
6888 		break;
6889 #ifndef CONFIG_NO_SCAN_PROCESSING
6890 	case EVENT_SCAN_STARTED:
6891 		if (wpa_s->own_scan_requested ||
6892 		    (data && !data->scan_info.external_scan)) {
6893 			struct os_reltime diff;
6894 
6895 			os_get_reltime(&wpa_s->scan_start_time);
6896 			os_reltime_sub(&wpa_s->scan_start_time,
6897 				       &wpa_s->scan_trigger_time, &diff);
6898 			wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
6899 				diff.sec, diff.usec);
6900 			wpa_s->own_scan_requested = 0;
6901 			wpa_s->own_scan_running = 1;
6902 			if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
6903 			    wpa_s->manual_scan_use_id) {
6904 				wpa_msg_ctrl(wpa_s, MSG_INFO,
6905 					     WPA_EVENT_SCAN_STARTED "id=%u",
6906 					     wpa_s->manual_scan_id);
6907 			} else {
6908 				wpa_msg_ctrl(wpa_s, MSG_INFO,
6909 					     WPA_EVENT_SCAN_STARTED);
6910 			}
6911 		} else {
6912 			wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
6913 			wpa_s->radio->external_scan_req_interface = wpa_s;
6914 			wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
6915 		}
6916 		break;
6917 	case EVENT_SCAN_RESULTS:
6918 		if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
6919 			wpa_s->scan_res_handler = NULL;
6920 			wpa_s->own_scan_running = 0;
6921 			wpa_s->radio->external_scan_req_interface = NULL;
6922 			wpa_s->last_scan_req = NORMAL_SCAN_REQ;
6923 			break;
6924 		}
6925 
6926 		if (!(data && data->scan_info.external_scan) &&
6927 		    os_reltime_initialized(&wpa_s->scan_start_time)) {
6928 			struct os_reltime now, diff;
6929 			os_get_reltime(&now);
6930 			os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
6931 			wpa_s->scan_start_time.sec = 0;
6932 			wpa_s->scan_start_time.usec = 0;
6933 			wpa_s->wps_scan_done = true;
6934 			wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
6935 				diff.sec, diff.usec);
6936 		}
6937 		if (wpa_supplicant_event_scan_results(wpa_s, data))
6938 			break; /* interface may have been removed */
6939 		if (!(data && data->scan_info.external_scan))
6940 			wpa_s->own_scan_running = 0;
6941 		if (data && data->scan_info.nl_scan_event)
6942 			wpa_s->radio->external_scan_req_interface = NULL;
6943 		radio_work_check_next(wpa_s);
6944 		break;
6945 #endif /* CONFIG_NO_SCAN_PROCESSING */
6946 	case EVENT_ASSOCINFO:
6947 		wpa_supplicant_event_associnfo(wpa_s, data);
6948 		break;
6949 	case EVENT_INTERFACE_STATUS:
6950 		wpa_supplicant_event_interface_status(wpa_s, data);
6951 		break;
6952 	case EVENT_PMKID_CANDIDATE:
6953 		wpa_supplicant_event_pmkid_candidate(wpa_s, data);
6954 		break;
6955 #ifdef CONFIG_TDLS
6956 	case EVENT_TDLS:
6957 		wpa_supplicant_event_tdls(wpa_s, data);
6958 		break;
6959 #endif /* CONFIG_TDLS */
6960 #ifdef CONFIG_WNM
6961 	case EVENT_WNM:
6962 		wpa_supplicant_event_wnm(wpa_s, data);
6963 		break;
6964 #endif /* CONFIG_WNM */
6965 #ifdef CONFIG_IEEE80211R
6966 	case EVENT_FT_RESPONSE:
6967 		wpa_supplicant_event_ft_response(wpa_s, data);
6968 		break;
6969 #endif /* CONFIG_IEEE80211R */
6970 #ifdef CONFIG_IBSS_RSN
6971 	case EVENT_IBSS_RSN_START:
6972 		wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
6973 		break;
6974 #endif /* CONFIG_IBSS_RSN */
6975 	case EVENT_ASSOC_REJECT:
6976 		wpas_event_assoc_reject(wpa_s, data);
6977 		break;
6978 	case EVENT_AUTH_TIMED_OUT:
6979 		/* It is possible to get this event from earlier connection */
6980 		if (wpa_s->current_ssid &&
6981 		    wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
6982 			wpa_dbg(wpa_s, MSG_DEBUG,
6983 				"Ignore AUTH_TIMED_OUT in mesh configuration");
6984 			break;
6985 		}
6986 		if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
6987 			sme_event_auth_timed_out(wpa_s, data);
6988 		break;
6989 	case EVENT_ASSOC_TIMED_OUT:
6990 		/* It is possible to get this event from earlier connection */
6991 		if (wpa_s->current_ssid &&
6992 		    wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
6993 			wpa_dbg(wpa_s, MSG_DEBUG,
6994 				"Ignore ASSOC_TIMED_OUT in mesh configuration");
6995 			break;
6996 		}
6997 		if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
6998 			sme_event_assoc_timed_out(wpa_s, data);
6999 		break;
7000 	case EVENT_TX_STATUS:
7001 		wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
7002 			" type=%d stype=%d",
7003 			MAC2STR(data->tx_status.dst),
7004 			data->tx_status.type, data->tx_status.stype);
7005 #ifdef CONFIG_WNM
7006 		if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
7007 		    data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
7008 		    wnm_btm_resp_tx_status(wpa_s, data->tx_status.data,
7009 					   data->tx_status.data_len) == 0)
7010 			break;
7011 #endif /* CONFIG_WNM */
7012 #ifdef CONFIG_PASN
7013 #ifdef CONFIG_P2P
7014 		if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
7015 		    data->tx_status.stype == WLAN_FC_STYPE_AUTH &&
7016 		    !wpa_s->pasn_auth_work &&
7017 		    wpa_s->p2p_pasn_auth_work &&
7018 		    wpas_p2p_pasn_auth_tx_status(wpa_s,
7019 						 data->tx_status.data,
7020 						 data->tx_status.data_len,
7021 						 data->tx_status.ack) == 0)
7022 			break;
7023 #endif /* CONFIG_P2P */
7024 #ifdef CONFIG_PR
7025 		if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
7026 		    data->tx_status.stype == WLAN_FC_STYPE_AUTH &&
7027 		    !wpa_s->pasn_auth_work &&
7028 		    wpa_s->pr_pasn_auth_work &&
7029 		    wpas_pr_pasn_auth_tx_status(wpa_s,
7030 						data->tx_status.data,
7031 						data->tx_status.data_len,
7032 						data->tx_status.ack) == 0)
7033 			break;
7034 #endif /* CONFIG_PR */
7035 #ifdef CONFIG_NAN
7036 		if (wpa_s->nan_mgmt &&
7037 		    data->tx_status.type == WLAN_FC_TYPE_MGMT &&
7038 		    data->tx_status.stype == WLAN_FC_STYPE_AUTH &&
7039 		    !wpa_s->pasn_auth_work &&
7040 		    wpas_nan_pasn_auth_tx_status(wpa_s, data->tx_status.data,
7041 						 data->tx_status.data_len,
7042 						 data->tx_status.ack) == 0)
7043 			break;
7044 #endif /* CONFIG_NAN */
7045 		if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
7046 		    data->tx_status.stype == WLAN_FC_STYPE_AUTH &&
7047 		    wpas_pasn_auth_tx_status(wpa_s, data->tx_status.data,
7048 					     data->tx_status.data_len,
7049 					     data->tx_status.ack) == 0)
7050 			break;
7051 #endif /* CONFIG_PASN */
7052 
7053 		if (wpas_is_nan_iface(wpa_s) &&
7054 		    data->tx_status.type == WLAN_FC_TYPE_MGMT &&
7055 		    data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
7056 		    wpas_nan_tx_status(wpa_s, data->tx_status.data,
7057 				       data->tx_status.data_len,
7058 				       data->tx_status.ack) == 0)
7059 			break;
7060 
7061 #ifdef CONFIG_AP
7062 		if (wpa_s->ap_iface == NULL) {
7063 #ifdef CONFIG_OFFCHANNEL
7064 			if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
7065 			    data->tx_status.stype == WLAN_FC_STYPE_ACTION)
7066 				offchannel_send_action_tx_status(
7067 					wpa_s, data->tx_status.dst,
7068 					data->tx_status.data,
7069 					data->tx_status.data_len,
7070 					data->tx_status.ack ?
7071 					OFFCHANNEL_SEND_ACTION_SUCCESS :
7072 					OFFCHANNEL_SEND_ACTION_NO_ACK);
7073 #endif /* CONFIG_OFFCHANNEL */
7074 			break;
7075 		}
7076 #endif /* CONFIG_AP */
7077 #ifdef CONFIG_OFFCHANNEL
7078 		wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
7079 			MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
7080 		/*
7081 		 * Catch TX status events for Action frames we sent via group
7082 		 * interface in GO mode, or via standalone AP interface.
7083 		 * Note, wpa_s->p2pdev will be the same as wpa_s->parent,
7084 		 * except when the primary interface is used as a GO interface
7085 		 * (for drivers which do not have group interface concurrency)
7086 		 */
7087 		if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
7088 		    data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
7089 		    ether_addr_equal(wpa_s->p2pdev->pending_action_dst,
7090 				     data->tx_status.dst)) {
7091 			offchannel_send_action_tx_status(
7092 				wpa_s->p2pdev, data->tx_status.dst,
7093 				data->tx_status.data,
7094 				data->tx_status.data_len,
7095 				data->tx_status.ack ?
7096 				OFFCHANNEL_SEND_ACTION_SUCCESS :
7097 				OFFCHANNEL_SEND_ACTION_NO_ACK);
7098 			break;
7099 		}
7100 #endif /* CONFIG_OFFCHANNEL */
7101 #ifdef CONFIG_AP
7102 		switch (data->tx_status.type) {
7103 		case WLAN_FC_TYPE_MGMT:
7104 			ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
7105 				      data->tx_status.data_len,
7106 				      data->tx_status.stype,
7107 				      data->tx_status.ack);
7108 			break;
7109 		case WLAN_FC_TYPE_DATA:
7110 			ap_tx_status(wpa_s, data->tx_status.dst,
7111 				     data->tx_status.data,
7112 				     data->tx_status.data_len,
7113 				     data->tx_status.ack);
7114 			break;
7115 		}
7116 #endif /* CONFIG_AP */
7117 		break;
7118 #ifdef CONFIG_AP
7119 	case EVENT_EAPOL_TX_STATUS:
7120 		ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
7121 				   data->eapol_tx_status.data,
7122 				   data->eapol_tx_status.data_len,
7123 				   data->eapol_tx_status.ack);
7124 		break;
7125 	case EVENT_DRIVER_CLIENT_POLL_OK:
7126 		ap_client_poll_ok(wpa_s, data->client_poll.addr);
7127 		break;
7128 	case EVENT_RX_FROM_UNKNOWN:
7129 		if (wpa_s->ap_iface == NULL)
7130 			break;
7131 		ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
7132 				       data->rx_from_unknown.wds);
7133 		break;
7134 #endif /* CONFIG_AP */
7135 
7136 	case EVENT_LINK_CH_SWITCH_STARTED:
7137 	case EVENT_LINK_CH_SWITCH:
7138 		if (!data || !wpa_s->current_ssid ||
7139 		    !(wpa_s->valid_links & BIT(data->ch_switch.link_id)))
7140 			break;
7141 
7142 		wpa_msg(wpa_s, MSG_INFO,
7143 			"%sfreq=%d link_id=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
7144 			event == EVENT_LINK_CH_SWITCH ?
7145 			WPA_EVENT_LINK_CHANNEL_SWITCH :
7146 			WPA_EVENT_LINK_CHANNEL_SWITCH_STARTED,
7147 			data->ch_switch.freq,
7148 			data->ch_switch.link_id,
7149 			data->ch_switch.ht_enabled,
7150 			data->ch_switch.ch_offset,
7151 			channel_width_to_string(data->ch_switch.ch_width),
7152 			data->ch_switch.cf1,
7153 			data->ch_switch.cf2);
7154 		if (event == EVENT_LINK_CH_SWITCH_STARTED)
7155 			break;
7156 
7157 		wpa_s->links[data->ch_switch.link_id].freq =
7158 			data->ch_switch.freq;
7159 		if (wpa_s->links[data->ch_switch.link_id].bss &&
7160 		    wpa_s->links[data->ch_switch.link_id].bss->freq !=
7161 		    data->ch_switch.freq) {
7162 			wpa_s->links[data->ch_switch.link_id].bss->freq =
7163 				data->ch_switch.freq;
7164 			notify_bss_changes(
7165 				wpa_s, WPA_BSS_FREQ_CHANGED_FLAG,
7166 				wpa_s->links[data->ch_switch.link_id].bss);
7167 		}
7168 		break;
7169 	case EVENT_CH_SWITCH_STARTED:
7170 	case EVENT_CH_SWITCH:
7171 		if (!data || !wpa_s->current_ssid)
7172 			break;
7173 
7174 		wpa_msg(wpa_s, MSG_INFO,
7175 			"%sfreq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
7176 			event == EVENT_CH_SWITCH ? WPA_EVENT_CHANNEL_SWITCH :
7177 			WPA_EVENT_CHANNEL_SWITCH_STARTED,
7178 			data->ch_switch.freq,
7179 			data->ch_switch.ht_enabled,
7180 			data->ch_switch.ch_offset,
7181 			channel_width_to_string(data->ch_switch.ch_width),
7182 			data->ch_switch.cf1,
7183 			data->ch_switch.cf2);
7184 		if (event == EVENT_CH_SWITCH_STARTED)
7185 			break;
7186 
7187 		wpa_s->assoc_freq = data->ch_switch.freq;
7188 		wpa_s->current_ssid->frequency = data->ch_switch.freq;
7189 		if (wpa_s->current_bss &&
7190 		    wpa_s->current_bss->freq != data->ch_switch.freq) {
7191 			wpa_s->current_bss->freq = data->ch_switch.freq;
7192 			notify_bss_changes(wpa_s, WPA_BSS_FREQ_CHANGED_FLAG,
7193 					   wpa_s->current_bss);
7194 		}
7195 
7196 #ifdef CONFIG_SME
7197 		switch (data->ch_switch.ch_offset) {
7198 		case 1:
7199 			wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_ABOVE;
7200 			break;
7201 		case -1:
7202 			wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_BELOW;
7203 			break;
7204 		default:
7205 			wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_UNKNOWN;
7206 			break;
7207 		}
7208 #endif /* CONFIG_SME */
7209 
7210 #ifdef CONFIG_AP
7211 		if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
7212 		    wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
7213 		    wpa_s->current_ssid->mode == WPAS_MODE_MESH ||
7214 		    wpa_s->current_ssid->mode ==
7215 		    WPAS_MODE_P2P_GROUP_FORMATION) {
7216 			wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
7217 					  data->ch_switch.ht_enabled,
7218 					  data->ch_switch.ch_offset,
7219 					  data->ch_switch.ch_width,
7220 					  data->ch_switch.cf1,
7221 					  data->ch_switch.cf2,
7222 					  data->ch_switch.punct_bitmap,
7223 					  1);
7224 		}
7225 #endif /* CONFIG_AP */
7226 
7227 		if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
7228 			sme_event_ch_switch(wpa_s);
7229 
7230 		wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
7231 		wnm_clear_coloc_intf_reporting(wpa_s);
7232 		break;
7233 #ifdef CONFIG_AP
7234 #ifdef NEED_AP_MLME
7235 	case EVENT_DFS_RADAR_DETECTED:
7236 		if (data)
7237 			wpas_ap_event_dfs_radar_detected(wpa_s,
7238 							 &data->dfs_event);
7239 		break;
7240 	case EVENT_DFS_NOP_FINISHED:
7241 		if (data)
7242 			wpas_ap_event_dfs_cac_nop_finished(wpa_s,
7243 							   &data->dfs_event);
7244 		break;
7245 #endif /* NEED_AP_MLME */
7246 #endif /* CONFIG_AP */
7247 	case EVENT_DFS_CAC_STARTED:
7248 		if (data)
7249 			wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
7250 		break;
7251 	case EVENT_DFS_CAC_FINISHED:
7252 		if (data)
7253 			wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
7254 		break;
7255 	case EVENT_DFS_CAC_ABORTED:
7256 		if (data)
7257 			wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
7258 		break;
7259 	case EVENT_RX_MGMT: {
7260 		u16 fc, stype;
7261 		const struct ieee80211_mgmt *mgmt;
7262 
7263 #ifdef CONFIG_TESTING_OPTIONS
7264 		if (wpa_s->ext_mgmt_frame_handling) {
7265 			struct rx_mgmt *rx = &data->rx_mgmt;
7266 			size_t hex_len = 2 * rx->frame_len + 1;
7267 			char *hex = os_malloc(hex_len);
7268 			if (hex) {
7269 				wpa_snprintf_hex(hex, hex_len,
7270 						 rx->frame, rx->frame_len);
7271 				wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
7272 					rx->freq, rx->datarate, rx->ssi_signal,
7273 					hex);
7274 				os_free(hex);
7275 			}
7276 			break;
7277 		}
7278 #endif /* CONFIG_TESTING_OPTIONS */
7279 
7280 		mgmt = (const struct ieee80211_mgmt *)
7281 			data->rx_mgmt.frame;
7282 		fc = le_to_host16(mgmt->frame_control);
7283 		stype = WLAN_FC_GET_STYPE(fc);
7284 
7285 #ifdef CONFIG_AP
7286 		if (wpa_s->ap_iface == NULL) {
7287 #endif /* CONFIG_AP */
7288 #ifdef CONFIG_P2P
7289 			if (stype == WLAN_FC_STYPE_PROBE_REQ &&
7290 			    data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
7291 				const u8 *src = mgmt->sa;
7292 				const u8 *ie;
7293 				size_t ie_len;
7294 
7295 				ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
7296 				ie_len = data->rx_mgmt.frame_len -
7297 					IEEE80211_HDRLEN;
7298 				wpas_p2p_probe_req_rx(
7299 					wpa_s, src, mgmt->da,
7300 					mgmt->bssid, ie, ie_len,
7301 					data->rx_mgmt.freq,
7302 					data->rx_mgmt.ssi_signal);
7303 				break;
7304 			}
7305 #endif /* CONFIG_P2P */
7306 #ifdef CONFIG_IBSS_RSN
7307 			if (wpa_s->current_ssid &&
7308 			    wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
7309 			    stype == WLAN_FC_STYPE_AUTH &&
7310 			    data->rx_mgmt.frame_len >= 30) {
7311 				wpa_supplicant_event_ibss_auth(wpa_s, data);
7312 				break;
7313 			}
7314 #endif /* CONFIG_IBSS_RSN */
7315 
7316 			if (stype == WLAN_FC_STYPE_ACTION) {
7317 				wpas_event_rx_mgmt_action(
7318 					wpa_s, data->rx_mgmt.frame,
7319 					data->rx_mgmt.frame_len,
7320 					data->rx_mgmt.freq,
7321 					data->rx_mgmt.ssi_signal);
7322 				break;
7323 			}
7324 
7325 			if (wpa_s->ifmsh) {
7326 				mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
7327 				break;
7328 			}
7329 #ifdef CONFIG_PASN
7330 			if (stype == WLAN_FC_STYPE_AUTH &&
7331 			    wpas_pasn_auth(wpa_s, mgmt, data->rx_mgmt.frame_len,
7332 					   data->rx_mgmt.freq) != -2)
7333 				break;
7334 #endif /* CONFIG_PASN */
7335 
7336 #ifdef CONFIG_SAE
7337 			if (stype == WLAN_FC_STYPE_AUTH &&
7338 			    !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
7339 			    ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE) ||
7340 			    (wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_EPPKE))) {
7341 				sme_external_auth_mgmt_rx(
7342 					wpa_s, data->rx_mgmt.frame,
7343 					data->rx_mgmt.frame_len);
7344 				break;
7345 			}
7346 #endif /* CONFIG_SAE */
7347 			wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
7348 				"management frame in non-AP mode");
7349 			break;
7350 #ifdef CONFIG_AP
7351 		}
7352 
7353 		if (stype == WLAN_FC_STYPE_PROBE_REQ &&
7354 		    data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
7355 			const u8 *ie;
7356 			size_t ie_len;
7357 
7358 			ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
7359 			ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
7360 
7361 			wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
7362 					 mgmt->bssid, ie, ie_len,
7363 					 data->rx_mgmt.ssi_signal);
7364 		}
7365 
7366 		ap_mgmt_rx(wpa_s, &data->rx_mgmt);
7367 #endif /* CONFIG_AP */
7368 		break;
7369 		}
7370 	case EVENT_RX_PROBE_REQ:
7371 		if (data->rx_probe_req.sa == NULL ||
7372 		    data->rx_probe_req.ie == NULL)
7373 			break;
7374 #ifdef CONFIG_AP
7375 		if (wpa_s->ap_iface) {
7376 			hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
7377 					     data->rx_probe_req.sa,
7378 					     data->rx_probe_req.da,
7379 					     data->rx_probe_req.bssid,
7380 					     data->rx_probe_req.ie,
7381 					     data->rx_probe_req.ie_len,
7382 					     data->rx_probe_req.ssi_signal);
7383 			break;
7384 		}
7385 #endif /* CONFIG_AP */
7386 		wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
7387 				      data->rx_probe_req.da,
7388 				      data->rx_probe_req.bssid,
7389 				      data->rx_probe_req.ie,
7390 				      data->rx_probe_req.ie_len,
7391 				      0,
7392 				      data->rx_probe_req.ssi_signal);
7393 		break;
7394 	case EVENT_REMAIN_ON_CHANNEL:
7395 #ifdef CONFIG_OFFCHANNEL
7396 		offchannel_remain_on_channel_cb(
7397 			wpa_s, data->remain_on_channel.freq,
7398 			data->remain_on_channel.duration);
7399 #endif /* CONFIG_OFFCHANNEL */
7400 		wpas_p2p_remain_on_channel_cb(
7401 			wpa_s, data->remain_on_channel.freq,
7402 			data->remain_on_channel.duration);
7403 #ifdef CONFIG_DPP
7404 		wpas_dpp_remain_on_channel_cb(
7405 			wpa_s, data->remain_on_channel.freq,
7406 			data->remain_on_channel.duration);
7407 #endif /* CONFIG_DPP */
7408 		wpas_nan_usd_remain_on_channel_cb(
7409 			wpa_s, data->remain_on_channel.freq,
7410 			data->remain_on_channel.duration);
7411 		break;
7412 	case EVENT_CANCEL_REMAIN_ON_CHANNEL:
7413 #ifdef CONFIG_OFFCHANNEL
7414 		offchannel_cancel_remain_on_channel_cb(
7415 			wpa_s, data->remain_on_channel.freq);
7416 #endif /* CONFIG_OFFCHANNEL */
7417 		wpas_p2p_cancel_remain_on_channel_cb(
7418 			wpa_s, data->remain_on_channel.freq);
7419 #ifdef CONFIG_DPP
7420 		wpas_dpp_cancel_remain_on_channel_cb(
7421 			wpa_s, data->remain_on_channel.freq);
7422 #endif /* CONFIG_DPP */
7423 		wpas_nan_usd_cancel_remain_on_channel_cb(
7424 			wpa_s, data->remain_on_channel.freq);
7425 #ifdef CONFIG_PR
7426 		wpas_pr_cancel_remain_on_channel_cb(
7427 			wpa_s, data->remain_on_channel.freq);
7428 #endif /* CONFIG_PR */
7429 		break;
7430 	case EVENT_EAPOL_RX:
7431 		wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
7432 					data->eapol_rx.data,
7433 					data->eapol_rx.data_len,
7434 					data->eapol_rx.encrypted);
7435 		break;
7436 	case EVENT_SIGNAL_CHANGE:
7437 		wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
7438 			     "above=%d signal=%d noise=%d txrate=%lu",
7439 			     data->signal_change.above_threshold,
7440 			     data->signal_change.data.signal,
7441 			     data->signal_change.current_noise,
7442 			     data->signal_change.data.current_tx_rate);
7443 		wpa_bss_update_level(wpa_s->current_bss,
7444 				     data->signal_change.data.signal);
7445 		bgscan_notify_signal_change(
7446 			wpa_s, data->signal_change.above_threshold,
7447 			data->signal_change.data.signal,
7448 			data->signal_change.current_noise,
7449 			data->signal_change.data.current_tx_rate);
7450 		os_memcpy(&wpa_s->last_signal_info, data,
7451 			  sizeof(struct wpa_signal_info));
7452 		wpas_notify_signal_change(wpa_s);
7453 		break;
7454 	case EVENT_INTERFACE_MAC_CHANGED:
7455 		wpa_supplicant_update_mac_addr(wpa_s);
7456 		wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
7457 		break;
7458 	case EVENT_INTERFACE_ENABLED:
7459 		wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
7460 		if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
7461 			u8 addr[ETH_ALEN];
7462 
7463 			eloop_cancel_timeout(wpas_clear_disabled_interface,
7464 					     wpa_s, NULL);
7465 			os_memcpy(addr, wpa_s->own_addr, ETH_ALEN);
7466 			wpa_supplicant_update_mac_addr(wpa_s);
7467 			if (!ether_addr_equal(addr, wpa_s->own_addr))
7468 				wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
7469 			else
7470 				wpa_sm_pmksa_cache_reconfig(wpa_s->wpa);
7471 			wpa_supplicant_set_default_scan_ies(wpa_s);
7472 			if (wpa_s->p2p_mgmt || wpa_s->nan_mgmt) {
7473 				wpa_supplicant_set_state(wpa_s,
7474 							 WPA_DISCONNECTED);
7475 				break;
7476 			}
7477 
7478 #ifdef CONFIG_AP
7479 			if (!wpa_s->ap_iface) {
7480 				wpa_supplicant_set_state(wpa_s,
7481 							 WPA_DISCONNECTED);
7482 				wpa_s->scan_req = NORMAL_SCAN_REQ;
7483 				wpa_supplicant_req_scan(wpa_s, 0, 0);
7484 			} else
7485 				wpa_supplicant_set_state(wpa_s,
7486 							 WPA_COMPLETED);
7487 #else /* CONFIG_AP */
7488 			wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
7489 			wpa_supplicant_req_scan(wpa_s, 0, 0);
7490 #endif /* CONFIG_AP */
7491 		}
7492 		break;
7493 	case EVENT_INTERFACE_DISABLED:
7494 		wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
7495 		if (wpa_s->nan_mgmt) {
7496 			wpas_nan_flush(wpa_s);
7497 			wpa_supplicant_set_state(wpa_s,
7498 						 WPA_INTERFACE_DISABLED);
7499 			break;
7500 		}
7501 #ifdef CONFIG_P2P
7502 		if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
7503 		    (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
7504 		     wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
7505 			/*
7506 			 * Mark interface disabled if this happens to end up not
7507 			 * being removed as a separate P2P group interface.
7508 			 */
7509 			wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
7510 			/*
7511 			 * The interface was externally disabled. Remove
7512 			 * it assuming an external entity will start a
7513 			 * new session if needed.
7514 			 */
7515 			if (wpa_s->current_ssid &&
7516 			    wpa_s->current_ssid->p2p_group)
7517 				wpas_p2p_interface_unavailable(wpa_s);
7518 			else
7519 				wpas_p2p_disconnect(wpa_s);
7520 			/*
7521 			 * wpa_s instance may have been freed, so must not use
7522 			 * it here anymore.
7523 			 */
7524 			break;
7525 		}
7526 		if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
7527 		    p2p_in_progress(wpa_s->global->p2p) > 1) {
7528 			/* This radio work will be cancelled, so clear P2P
7529 			 * state as well.
7530 			 */
7531 			p2p_stop_find(wpa_s->global->p2p);
7532 		}
7533 #endif /* CONFIG_P2P */
7534 
7535 		if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
7536 			/*
7537 			 * Indicate disconnection to keep ctrl_iface events
7538 			 * consistent.
7539 			 */
7540 			wpa_supplicant_event_disassoc(
7541 				wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
7542 		}
7543 		wpa_supplicant_mark_disassoc(wpa_s);
7544 		os_reltime_age(&wpa_s->last_scan, &age);
7545 		if (age.sec >= wpa_s->conf->scan_res_valid_for_connect) {
7546 			clear_at.sec = wpa_s->conf->scan_res_valid_for_connect;
7547 			clear_at.usec = 0;
7548 		} else {
7549 			struct os_reltime tmp;
7550 
7551 			tmp.sec = wpa_s->conf->scan_res_valid_for_connect;
7552 			tmp.usec = 0;
7553 			os_reltime_sub(&tmp, &age, &clear_at);
7554 		}
7555 		eloop_register_timeout(clear_at.sec, clear_at.usec,
7556 				       wpas_clear_disabled_interface,
7557 				       wpa_s, NULL);
7558 		radio_remove_works(wpa_s, NULL, 0);
7559 
7560 		wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
7561 		break;
7562 	case EVENT_CHANNEL_LIST_CHANGED:
7563 		wpa_supplicant_update_channel_list(
7564 			wpa_s, &data->channel_list_changed);
7565 		break;
7566 	case EVENT_INTERFACE_UNAVAILABLE:
7567 		wpas_p2p_interface_unavailable(wpa_s);
7568 		break;
7569 	case EVENT_BEST_CHANNEL:
7570 		wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
7571 			"(%d %d %d)",
7572 			data->best_chan.freq_24, data->best_chan.freq_5,
7573 			data->best_chan.freq_overall);
7574 		wpa_s->best_24_freq = data->best_chan.freq_24;
7575 		wpa_s->best_5_freq = data->best_chan.freq_5;
7576 		wpa_s->best_overall_freq = data->best_chan.freq_overall;
7577 		wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
7578 					      data->best_chan.freq_5,
7579 					      data->best_chan.freq_overall);
7580 		break;
7581 	case EVENT_UNPROT_DEAUTH:
7582 		wpa_supplicant_event_unprot_deauth(wpa_s,
7583 						   &data->unprot_deauth);
7584 		break;
7585 	case EVENT_UNPROT_DISASSOC:
7586 		wpa_supplicant_event_unprot_disassoc(wpa_s,
7587 						     &data->unprot_disassoc);
7588 		break;
7589 	case EVENT_STATION_LOW_ACK:
7590 #ifdef CONFIG_AP
7591 		if (wpa_s->ap_iface && data)
7592 			hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
7593 						  data->low_ack.addr);
7594 #endif /* CONFIG_AP */
7595 #ifdef CONFIG_TDLS
7596 		if (data)
7597 			wpa_tdls_disable_unreachable_link(wpa_s->wpa,
7598 							  data->low_ack.addr);
7599 #endif /* CONFIG_TDLS */
7600 		break;
7601 	case EVENT_IBSS_PEER_LOST:
7602 #ifdef CONFIG_IBSS_RSN
7603 		ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
7604 #endif /* CONFIG_IBSS_RSN */
7605 		break;
7606 	case EVENT_DRIVER_GTK_REKEY:
7607 		if (!ether_addr_equal(data->driver_gtk_rekey.bssid,
7608 				      wpa_s->bssid))
7609 			break;
7610 		if (!wpa_s->wpa)
7611 			break;
7612 		wpa_sm_update_replay_ctr(wpa_s->wpa,
7613 					 data->driver_gtk_rekey.replay_ctr);
7614 		break;
7615 	case EVENT_SCHED_SCAN_STOPPED:
7616 		wpa_s->sched_scanning = 0;
7617 		resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
7618 		wpa_supplicant_notify_scanning(wpa_s, 0);
7619 
7620 		if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
7621 			break;
7622 
7623 		/*
7624 		 * If the driver stopped scanning without being requested to,
7625 		 * request a new scan to continue scanning for networks.
7626 		 */
7627 		if (!wpa_s->sched_scan_stop_req &&
7628 		    wpa_s->wpa_state == WPA_SCANNING) {
7629 			wpa_dbg(wpa_s, MSG_DEBUG,
7630 				"Restart scanning after unexpected sched_scan stop event");
7631 			wpa_supplicant_req_scan(wpa_s, 1, 0);
7632 			break;
7633 		}
7634 
7635 		wpa_s->sched_scan_stop_req = 0;
7636 
7637 		/*
7638 		 * Start a new sched scan to continue searching for more SSIDs
7639 		 * either if timed out or PNO schedule scan is pending.
7640 		 */
7641 		if (wpa_s->sched_scan_timed_out) {
7642 			wpa_supplicant_req_sched_scan(wpa_s);
7643 		} else if (wpa_s->pno_sched_pending) {
7644 			wpa_s->pno_sched_pending = 0;
7645 			wpas_start_pno(wpa_s);
7646 		} else if (resched) {
7647 			wpa_supplicant_req_scan(wpa_s, 0, 0);
7648 		}
7649 
7650 		break;
7651 	case EVENT_WPS_BUTTON_PUSHED:
7652 #ifdef CONFIG_WPS
7653 		wpas_wps_start_pbc(wpa_s, NULL, 0, 0);
7654 #endif /* CONFIG_WPS */
7655 		break;
7656 	case EVENT_AVOID_FREQUENCIES:
7657 		wpa_supplicant_notify_avoid_freq(wpa_s, data);
7658 		break;
7659 	case EVENT_CONNECT_FAILED_REASON:
7660 #ifdef CONFIG_AP
7661 		if (!wpa_s->ap_iface || !data)
7662 			break;
7663 		hostapd_event_connect_failed_reason(
7664 			wpa_s->ap_iface->bss[0],
7665 			data->connect_failed_reason.addr,
7666 			data->connect_failed_reason.code);
7667 #endif /* CONFIG_AP */
7668 		break;
7669 	case EVENT_NEW_PEER_CANDIDATE:
7670 #ifdef CONFIG_MESH
7671 		if (!wpa_s->ifmsh || !data)
7672 			break;
7673 		wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
7674 				     data->mesh_peer.ies,
7675 				     data->mesh_peer.ie_len);
7676 #endif /* CONFIG_MESH */
7677 		break;
7678 	case EVENT_SURVEY:
7679 #ifdef CONFIG_AP
7680 		if (!wpa_s->ap_iface)
7681 			break;
7682 		hostapd_event_get_survey(wpa_s->ap_iface,
7683 					 &data->survey_results);
7684 #endif /* CONFIG_AP */
7685 		break;
7686 	case EVENT_ACS_CHANNEL_SELECTED:
7687 #ifdef CONFIG_AP
7688 #ifdef CONFIG_ACS
7689 		if (!wpa_s->ap_iface)
7690 			break;
7691 		hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
7692 					     &data->acs_selected_channels);
7693 #endif /* CONFIG_ACS */
7694 #endif /* CONFIG_AP */
7695 		break;
7696 	case EVENT_P2P_LO_STOP:
7697 #ifdef CONFIG_P2P
7698 		wpa_s->p2p_lo_started = 0;
7699 		wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP
7700 			P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d",
7701 			data->p2p_lo_stop.reason_code);
7702 #endif /* CONFIG_P2P */
7703 		break;
7704 	case EVENT_BEACON_LOSS:
7705 		if (!wpa_s->current_bss || !wpa_s->current_ssid)
7706 			break;
7707 		wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_BEACON_LOSS);
7708 		bgscan_notify_beacon_loss(wpa_s);
7709 		break;
7710 	case EVENT_EXTERNAL_AUTH:
7711 		if (!wpa_s->current_ssid) {
7712 			wpa_printf(MSG_DEBUG,
7713 				   "EXTERNAL_AUTH: current_ssid is NULL");
7714 			break;
7715 		}
7716 		sme_external_auth_trigger(wpa_s, &data->external_auth);
7717 		break;
7718 #ifdef CONFIG_PASN
7719 	case EVENT_PASN_AUTH:
7720 		wpas_pasn_auth_trigger(wpa_s, &data->pasn_auth);
7721 		break;
7722 #endif /* CONFIG_PASN */
7723 	case EVENT_PORT_AUTHORIZED:
7724 #ifdef CONFIG_AP
7725 		if (wpa_s->ap_iface && wpa_s->ap_iface->bss[0]) {
7726 			struct sta_info *sta;
7727 
7728 			sta = ap_get_sta(wpa_s->ap_iface->bss[0],
7729 					 data->port_authorized.sta_addr);
7730 			if (sta)
7731 				ap_sta_set_authorized(wpa_s->ap_iface->bss[0],
7732 						      sta, 1);
7733 			else
7734 				wpa_printf(MSG_DEBUG,
7735 					   "No STA info matching port authorized event found");
7736 			break;
7737 		}
7738 #endif /* CONFIG_AP */
7739 #ifndef CONFIG_NO_WPA
7740 		if (data->port_authorized.td_bitmap_len) {
7741 			wpa_printf(MSG_DEBUG,
7742 				   "WPA3: Transition Disable bitmap from the driver event: 0x%x",
7743 				   data->port_authorized.td_bitmap[0]);
7744 			wpas_transition_disable(
7745 				wpa_s, data->port_authorized.td_bitmap[0]);
7746 		}
7747 #endif /* CONFIG_NO_WPA */
7748 		wpa_supplicant_event_port_authorized(wpa_s);
7749 		break;
7750 	case EVENT_STATION_OPMODE_CHANGED:
7751 #ifdef CONFIG_AP
7752 		if (!wpa_s->ap_iface || !data)
7753 			break;
7754 
7755 		hostapd_event_sta_opmode_changed(wpa_s->ap_iface->bss[0],
7756 						 data->sta_opmode.addr,
7757 						 data->sta_opmode.smps_mode,
7758 						 data->sta_opmode.chan_width,
7759 						 data->sta_opmode.rx_nss);
7760 #endif /* CONFIG_AP */
7761 		break;
7762 	case EVENT_UNPROT_BEACON:
7763 		wpas_event_unprot_beacon(wpa_s, &data->unprot_beacon);
7764 		break;
7765 	case EVENT_TX_WAIT_EXPIRE:
7766 #ifdef CONFIG_DPP
7767 		wpas_dpp_tx_wait_expire(wpa_s);
7768 #endif /* CONFIG_DPP */
7769 		wpas_nan_usd_tx_wait_expire(wpa_s);
7770 		break;
7771 	case EVENT_TID_LINK_MAP:
7772 		if (data)
7773 			wpas_tid_link_map(wpa_s, &data->t2l_map_info);
7774 		break;
7775 	case EVENT_SETUP_LINK_RECONFIG:
7776 		if (data)
7777 			wpas_setup_link_reconfig(wpa_s, &data->reconfig_info);
7778 		break;
7779 #ifdef CONFIG_PR
7780 	case EVENT_PEER_MEASUREMENT_RESULT:
7781 		wpas_pr_measurement_result(wpa_s,
7782 					   &data->peer_measurement_result);
7783 		break;
7784 	case EVENT_PEER_MEASUREMENT_COMPLETE:
7785 		wpas_pr_measurement_complete(wpa_s,
7786 					     &data->peer_measurement_complete);
7787 		break;
7788 #endif /* CONFIG_PR */
7789 #ifdef CONFIG_NAN
7790 	case EVENT_NAN_CLUSTER_JOIN:
7791 		wpas_nan_cluster_join(wpa_s, data->nan_cluster_join_info.bssid,
7792 				      data->nan_cluster_join_info.new_cluster);
7793 		break;
7794 	case EVENT_NAN_NEXT_DW:
7795 		wpas_nan_next_dw(wpa_s, data->nan_next_dw_info.freq);
7796 		break;
7797 	case EVENT_NAN_SCHED_UPDATE_DONE:
7798 		wpas_nan_sched_update_done(wpa_s, data);
7799 		break;
7800 	case EVENT_NAN_ULW_UPDATE:
7801 		wpas_nan_ulw_update(wpa_s, data->nan_ulw_update_info.ulw,
7802 				    data->nan_ulw_update_info.ulw_len);
7803 		break;
7804 	case EVENT_NAN_CHAN_EVACUATION:
7805 		wpas_nan_chan_evacuation(wpa_s,
7806 					 &data->nan_chan_evacuation_info);
7807 		break;
7808 #endif /* CONFIG_NAN */
7809 	default:
7810 		wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
7811 		break;
7812 	}
7813 }
7814 
7815 
wpa_supplicant_event_global(void * ctx,enum wpa_event_type event,union wpa_event_data * data)7816 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
7817 				 union wpa_event_data *data)
7818 {
7819 	struct wpa_supplicant *wpa_s;
7820 
7821 	if (event != EVENT_INTERFACE_STATUS)
7822 		return;
7823 
7824 	wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
7825 	if (wpa_s && wpa_s->driver->get_ifindex) {
7826 		unsigned int ifindex;
7827 
7828 		ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
7829 		if (ifindex != data->interface_status.ifindex) {
7830 			wpa_dbg(wpa_s, MSG_DEBUG,
7831 				"interface status ifindex %d mismatch (%d)",
7832 				ifindex, data->interface_status.ifindex);
7833 			return;
7834 		}
7835 	}
7836 #ifdef CONFIG_MATCH_IFACE
7837 	else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
7838 		struct wpa_interface *wpa_i;
7839 
7840 		wpa_i = wpa_supplicant_match_iface(
7841 			ctx, data->interface_status.ifname);
7842 		if (!wpa_i)
7843 			return;
7844 		wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
7845 		os_free(wpa_i);
7846 	}
7847 #endif /* CONFIG_MATCH_IFACE */
7848 
7849 	if (wpa_s)
7850 		wpa_supplicant_event(wpa_s, event, data);
7851 }
7852