1 /*
2 * WPA Supplicant - Driver event processing
3 * Copyright (c) 2003-2019, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "includes.h"
10
11 #include "common.h"
12 #include "eapol_supp/eapol_supp_sm.h"
13 #include "rsn_supp/wpa.h"
14 #include "eloop.h"
15 #include "config.h"
16 #include "l2_packet/l2_packet.h"
17 #include "wpa_supplicant_i.h"
18 #include "driver_i.h"
19 #include "pcsc_funcs.h"
20 #include "rsn_supp/preauth.h"
21 #include "rsn_supp/pmksa_cache.h"
22 #include "common/wpa_ctrl.h"
23 #include "eap_peer/eap.h"
24 #include "ap/hostapd.h"
25 #include "ap/sta_info.h"
26 #include "p2p/p2p.h"
27 #include "fst/fst.h"
28 #include "wnm_sta.h"
29 #include "notify.h"
30 #include "common/ieee802_11_defs.h"
31 #include "common/ieee802_11_common.h"
32 #include "common/gas_server.h"
33 #include "common/dpp.h"
34 #include "common/ptksa_cache.h"
35 #include "crypto/random.h"
36 #include "bssid_ignore.h"
37 #include "wpas_glue.h"
38 #include "wps_supplicant.h"
39 #include "ibss_rsn.h"
40 #include "sme.h"
41 #include "gas_query.h"
42 #include "p2p_supplicant.h"
43 #include "bgscan.h"
44 #include "autoscan.h"
45 #include "ap.h"
46 #include "bss.h"
47 #include "scan.h"
48 #include "offchannel.h"
49 #include "interworking.h"
50 #include "mesh.h"
51 #include "mesh_mpm.h"
52 #include "wmm_ac.h"
53 #include "nan_usd.h"
54 #include "dpp_supplicant.h"
55
56
57 #define MAX_OWE_TRANSITION_BSS_SELECT_COUNT 5
58
59
60 #ifndef CONFIG_NO_SCAN_PROCESSING
61 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
62 int new_scan, int own_request,
63 bool trigger_6ghz_scan,
64 union wpa_event_data *data);
65 #endif /* CONFIG_NO_SCAN_PROCESSING */
66
67
wpas_temp_disabled(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)68 int wpas_temp_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
69 {
70 struct os_reltime now;
71
72 if (ssid == NULL || ssid->disabled_until.sec == 0)
73 return 0;
74
75 os_get_reltime(&now);
76 if (ssid->disabled_until.sec > now.sec)
77 return ssid->disabled_until.sec - now.sec;
78
79 wpas_clear_temp_disabled(wpa_s, ssid, 0);
80
81 return 0;
82 }
83
84
85 #ifndef CONFIG_NO_SCAN_PROCESSING
86 /**
87 * wpas_reenabled_network_time - Time until first network is re-enabled
88 * @wpa_s: Pointer to wpa_supplicant data
89 * Returns: If all enabled networks are temporarily disabled, returns the time
90 * (in sec) until the first network is re-enabled. Otherwise returns 0.
91 *
92 * This function is used in case all enabled networks are temporarily disabled,
93 * in which case it returns the time (in sec) that the first network will be
94 * re-enabled. The function assumes that at least one network is enabled.
95 */
wpas_reenabled_network_time(struct wpa_supplicant * wpa_s)96 static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
97 {
98 struct wpa_ssid *ssid;
99 int disabled_for, res = 0;
100
101 #ifdef CONFIG_INTERWORKING
102 if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
103 wpa_s->conf->cred)
104 return 0;
105 #endif /* CONFIG_INTERWORKING */
106
107 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
108 if (ssid->disabled)
109 continue;
110
111 disabled_for = wpas_temp_disabled(wpa_s, ssid);
112 if (!disabled_for)
113 return 0;
114
115 if (!res || disabled_for < res)
116 res = disabled_for;
117 }
118
119 return res;
120 }
121 #endif /* CONFIG_NO_SCAN_PROCESSING */
122
123
wpas_network_reenabled(void * eloop_ctx,void * timeout_ctx)124 void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
125 {
126 struct wpa_supplicant *wpa_s = eloop_ctx;
127
128 if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
129 return;
130
131 wpa_dbg(wpa_s, MSG_DEBUG,
132 "Try to associate due to network getting re-enabled");
133 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
134 wpa_supplicant_cancel_sched_scan(wpa_s);
135 wpa_supplicant_req_scan(wpa_s, 0, 0);
136 }
137 }
138
139
__wpa_supplicant_get_new_bss(struct wpa_supplicant * wpa_s,const u8 * bssid,const u8 * ssid,size_t ssid_len)140 static struct wpa_bss * __wpa_supplicant_get_new_bss(
141 struct wpa_supplicant *wpa_s, const u8 *bssid, const u8 *ssid,
142 size_t ssid_len)
143 {
144 if (ssid && ssid_len > 0)
145 return wpa_bss_get(wpa_s, bssid, ssid, ssid_len);
146 else
147 return wpa_bss_get_bssid(wpa_s, bssid);
148 }
149
150
_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)151 static struct wpa_bss * _wpa_supplicant_get_new_bss(
152 struct wpa_supplicant *wpa_s, const u8 *bssid, const u8 *ssid,
153 size_t ssid_len, bool try_update_scan_results)
154 {
155 struct wpa_bss *bss = __wpa_supplicant_get_new_bss(wpa_s, bssid, ssid,
156 ssid_len);
157
158 if (bss || !try_update_scan_results)
159 return bss;
160
161 wpa_supplicant_update_scan_results(wpa_s, bssid);
162
163 return __wpa_supplicant_get_new_bss(wpa_s, bssid, ssid, ssid_len);
164 }
165
166
wpa_supplicant_get_new_bss(struct wpa_supplicant * wpa_s,const u8 * bssid)167 static struct wpa_bss * wpa_supplicant_get_new_bss(
168 struct wpa_supplicant *wpa_s, const u8 *bssid)
169 {
170 struct wpa_bss *bss = NULL;
171 struct wpa_ssid *ssid = wpa_s->current_ssid;
172 u8 drv_ssid[SSID_MAX_LEN];
173 int res;
174 bool try_update_scan_results = true;
175
176 res = wpa_drv_get_ssid(wpa_s, drv_ssid);
177 if (res > 0) {
178 bss = _wpa_supplicant_get_new_bss(wpa_s, bssid, drv_ssid, res,
179 try_update_scan_results);
180 try_update_scan_results = false;
181 }
182 if (!bss && ssid && ssid->ssid_len > 0) {
183 bss = _wpa_supplicant_get_new_bss(wpa_s, bssid, ssid->ssid,
184 ssid->ssid_len,
185 try_update_scan_results);
186 try_update_scan_results = false;
187 }
188 if (!bss)
189 bss = _wpa_supplicant_get_new_bss(wpa_s, bssid, NULL, 0,
190 try_update_scan_results);
191
192 return bss;
193 }
194
195
196 static struct wpa_bss *
wpa_supplicant_update_current_bss(struct wpa_supplicant * wpa_s,const u8 * bssid)197 wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s, const u8 *bssid)
198 {
199 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
200
201 if (bss)
202 wpa_s->current_bss = bss;
203
204 return bss;
205 }
206
207
wpa_supplicant_update_link_bss(struct wpa_supplicant * wpa_s,u8 link_id,const u8 * bssid)208 static void wpa_supplicant_update_link_bss(struct wpa_supplicant *wpa_s,
209 u8 link_id, const u8 *bssid)
210 {
211 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
212
213 if (bss)
214 wpa_s->links[link_id].bss = bss;
215 }
216
217
wpa_supplicant_select_config(struct wpa_supplicant * wpa_s,union wpa_event_data * data)218 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s,
219 union wpa_event_data *data)
220 {
221 struct wpa_ssid *ssid, *old_ssid;
222 struct wpa_bss *bss;
223 u8 drv_ssid[SSID_MAX_LEN];
224 size_t drv_ssid_len;
225 int res;
226
227 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
228 wpa_supplicant_update_current_bss(wpa_s, wpa_s->bssid);
229
230 if (wpa_s->current_ssid->ssid_len == 0)
231 return 0; /* current profile still in use */
232 res = wpa_drv_get_ssid(wpa_s, drv_ssid);
233 if (res < 0) {
234 wpa_msg(wpa_s, MSG_INFO,
235 "Failed to read SSID from driver");
236 return 0; /* try to use current profile */
237 }
238 drv_ssid_len = res;
239
240 if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
241 os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
242 drv_ssid_len) == 0)
243 return 0; /* current profile still in use */
244
245 #ifdef CONFIG_OWE
246 if ((wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
247 wpa_s->current_bss &&
248 (wpa_s->current_bss->flags & WPA_BSS_OWE_TRANSITION) &&
249 drv_ssid_len == wpa_s->current_bss->ssid_len &&
250 os_memcmp(drv_ssid, wpa_s->current_bss->ssid,
251 drv_ssid_len) == 0)
252 return 0; /* current profile still in use */
253 #endif /* CONFIG_OWE */
254
255 wpa_msg(wpa_s, MSG_DEBUG,
256 "Driver-initiated BSS selection changed the SSID to %s",
257 wpa_ssid_txt(drv_ssid, drv_ssid_len));
258 /* continue selecting a new network profile */
259 }
260
261 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
262 "information");
263 ssid = wpa_supplicant_get_ssid(wpa_s);
264 if (ssid == NULL) {
265 wpa_msg(wpa_s, MSG_INFO,
266 "No network configuration found for the current AP");
267 return -1;
268 }
269
270 if (wpas_network_disabled(wpa_s, ssid)) {
271 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
272 return -1;
273 }
274
275 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
276 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
277 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
278 return -1;
279 }
280
281 res = wpas_temp_disabled(wpa_s, ssid);
282 if (res > 0) {
283 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
284 "disabled for %d second(s)", res);
285 return -1;
286 }
287
288 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
289 "current AP");
290 bss = wpa_supplicant_update_current_bss(wpa_s, wpa_s->bssid);
291 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
292 u8 wpa_ie[80];
293 size_t wpa_ie_len = sizeof(wpa_ie);
294 bool skip_default_rsne;
295
296 /* Do not override RSNE/RSNXE with the default values if the
297 * driver indicated the actual values used in the
298 * (Re)Association Request frame. */
299 skip_default_rsne = data && data->assoc_info.req_ies;
300 if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
301 wpa_ie, &wpa_ie_len,
302 skip_default_rsne) < 0)
303 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
304 } else {
305 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
306 }
307
308 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
309 eapol_sm_invalidate_cached_session(wpa_s->eapol);
310 old_ssid = wpa_s->current_ssid;
311 wpa_s->current_ssid = ssid;
312
313 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
314 wpa_supplicant_initiate_eapol(wpa_s);
315 if (old_ssid != wpa_s->current_ssid)
316 wpas_notify_network_changed(wpa_s);
317
318 return 0;
319 }
320
321
wpa_supplicant_stop_countermeasures(void * eloop_ctx,void * sock_ctx)322 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
323 {
324 struct wpa_supplicant *wpa_s = eloop_ctx;
325
326 if (wpa_s->countermeasures) {
327 wpa_s->countermeasures = 0;
328 wpa_drv_set_countermeasures(wpa_s, 0);
329 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
330
331 /*
332 * It is possible that the device is sched scanning, which means
333 * that a connection attempt will be done only when we receive
334 * scan results. However, in this case, it would be preferable
335 * to scan and connect immediately, so cancel the sched_scan and
336 * issue a regular scan flow.
337 */
338 wpa_supplicant_cancel_sched_scan(wpa_s);
339 wpa_supplicant_req_scan(wpa_s, 0, 0);
340 }
341 }
342
343
wpas_reset_mlo_info(struct wpa_supplicant * wpa_s)344 void wpas_reset_mlo_info(struct wpa_supplicant *wpa_s)
345 {
346 if (!wpa_s->valid_links)
347 return;
348
349 wpa_s->valid_links = 0;
350 wpa_s->mlo_assoc_link_id = 0;
351 os_memset(wpa_s->ap_mld_addr, 0, ETH_ALEN);
352 os_memset(wpa_s->links, 0, sizeof(wpa_s->links));
353 }
354
355
wpa_supplicant_mark_disassoc(struct wpa_supplicant * wpa_s)356 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
357 {
358 int bssid_changed;
359
360 wnm_bss_keep_alive_deinit(wpa_s);
361
362 #ifdef CONFIG_IBSS_RSN
363 ibss_rsn_deinit(wpa_s->ibss_rsn);
364 wpa_s->ibss_rsn = NULL;
365 #endif /* CONFIG_IBSS_RSN */
366
367 #ifdef CONFIG_AP
368 wpa_supplicant_ap_deinit(wpa_s);
369 #endif /* CONFIG_AP */
370
371 #ifdef CONFIG_HS20
372 /* Clear possibly configured frame filters */
373 wpa_drv_configure_frame_filters(wpa_s, 0);
374 #endif /* CONFIG_HS20 */
375
376 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
377 return;
378
379 if (os_reltime_initialized(&wpa_s->session_start)) {
380 os_reltime_age(&wpa_s->session_start, &wpa_s->session_length);
381 wpa_s->session_start.sec = 0;
382 wpa_s->session_start.usec = 0;
383 wpas_notify_session_length(wpa_s);
384 }
385
386 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
387 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
388 os_memset(wpa_s->bssid, 0, ETH_ALEN);
389 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
390 sme_clear_on_disassoc(wpa_s);
391 wpa_s->current_bss = NULL;
392 wpa_s->assoc_freq = 0;
393
394 if (bssid_changed)
395 wpas_notify_bssid_changed(wpa_s);
396
397 eapol_sm_notify_portEnabled(wpa_s->eapol, false);
398 eapol_sm_notify_portValid(wpa_s->eapol, false);
399 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
400 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE ||
401 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP || wpa_s->drv_authorized_port)
402 eapol_sm_notify_eap_success(wpa_s->eapol, false);
403 wpa_s->drv_authorized_port = 0;
404 wpa_s->ap_ies_from_associnfo = 0;
405 wpa_s->current_ssid = NULL;
406 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
407 wpa_s->key_mgmt = 0;
408 wpa_s->allowed_key_mgmts = 0;
409
410 #ifndef CONFIG_NO_RRM
411 wpas_rrm_reset(wpa_s);
412 #endif /* CONFIG_NO_RRM */
413 wpa_s->wnmsleep_used = 0;
414 #ifdef CONFIG_WNM
415 wpa_s->wnm_mode = 0;
416 #endif /* CONFIG_WNM */
417 wnm_clear_coloc_intf_reporting(wpa_s);
418 wpa_s->disable_mbo_oce = 0;
419
420 #ifdef CONFIG_TESTING_OPTIONS
421 wpa_s->last_tk_alg = WPA_ALG_NONE;
422 os_memset(wpa_s->last_tk, 0, sizeof(wpa_s->last_tk));
423 #endif /* CONFIG_TESTING_OPTIONS */
424 wpa_s->ieee80211ac = 0;
425
426 if (wpa_s->enabled_4addr_mode && wpa_drv_set_4addr_mode(wpa_s, 0) == 0)
427 wpa_s->enabled_4addr_mode = 0;
428
429 wpa_s->wps_scan_done = false;
430 wpas_reset_mlo_info(wpa_s);
431
432 #ifdef CONFIG_SME
433 wpa_s->sme.bss_max_idle_period = 0;
434 #endif /* CONFIG_SME */
435
436 wpa_s->ssid_verified = false;
437 wpa_s->bigtk_set = false;
438 }
439
440
wpa_find_assoc_pmkid(struct wpa_supplicant * wpa_s,bool authorized)441 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s, bool authorized)
442 {
443 struct wpa_ie_data ie;
444 int pmksa_set = -1;
445 size_t i;
446 struct rsn_pmksa_cache_entry *cur_pmksa;
447
448 /* Start with assumption of no PMKSA cache entry match for cases other
449 * than SAE. In particular, this is needed to generate the PMKSA cache
450 * entries for Suite B cases with driver-based roaming indication. */
451 cur_pmksa = pmksa_cache_get_current(wpa_s->wpa);
452 if (cur_pmksa && !wpa_key_mgmt_sae(cur_pmksa->akmp))
453 pmksa_cache_clear_current(wpa_s->wpa);
454
455 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
456 ie.pmkid == NULL)
457 return;
458
459 for (i = 0; i < ie.num_pmkid; i++) {
460 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
461 ie.pmkid + i * PMKID_LEN,
462 NULL, NULL, 0, NULL, 0,
463 true);
464 if (pmksa_set == 0) {
465 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
466 if (authorized)
467 wpa_sm_set_pmk_from_pmksa(wpa_s->wpa);
468 break;
469 }
470 }
471
472 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
473 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
474 }
475
476
wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant * wpa_s,union wpa_event_data * data)477 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
478 union wpa_event_data *data)
479 {
480 if (data == NULL) {
481 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
482 "event");
483 return;
484 }
485 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
486 " index=%d preauth=%d",
487 MAC2STR(data->pmkid_candidate.bssid),
488 data->pmkid_candidate.index,
489 data->pmkid_candidate.preauth);
490
491 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
492 data->pmkid_candidate.index,
493 data->pmkid_candidate.preauth);
494 }
495
496
wpa_supplicant_dynamic_keys(struct wpa_supplicant * wpa_s)497 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
498 {
499 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
500 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
501 return 0;
502
503 #ifdef IEEE8021X_EAPOL
504 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
505 wpa_s->current_ssid &&
506 !(wpa_s->current_ssid->eapol_flags &
507 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
508 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
509 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
510 * plaintext or static WEP keys). */
511 return 0;
512 }
513 #endif /* IEEE8021X_EAPOL */
514
515 return 1;
516 }
517
518
519 /**
520 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
521 * @wpa_s: pointer to wpa_supplicant data
522 * @ssid: Configuration data for the network
523 * Returns: 0 on success, -1 on failure
524 *
525 * This function is called when starting authentication with a network that is
526 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
527 */
wpa_supplicant_scard_init(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)528 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
529 struct wpa_ssid *ssid)
530 {
531 #ifdef IEEE8021X_EAPOL
532 #ifdef PCSC_FUNCS
533 int aka = 0, sim = 0;
534
535 if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
536 wpa_s->scard != NULL || wpa_s->conf->external_sim)
537 return 0;
538
539 if (ssid == NULL || ssid->eap.eap_methods == NULL) {
540 sim = 1;
541 aka = 1;
542 } else {
543 struct eap_method_type *eap = ssid->eap.eap_methods;
544 while (eap->vendor != EAP_VENDOR_IETF ||
545 eap->method != EAP_TYPE_NONE) {
546 if (eap->vendor == EAP_VENDOR_IETF) {
547 if (eap->method == EAP_TYPE_SIM)
548 sim = 1;
549 else if (eap->method == EAP_TYPE_AKA ||
550 eap->method == EAP_TYPE_AKA_PRIME)
551 aka = 1;
552 }
553 eap++;
554 }
555 }
556
557 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
558 sim = 0;
559 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
560 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
561 NULL)
562 aka = 0;
563
564 if (!sim && !aka) {
565 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
566 "use SIM, but neither EAP-SIM nor EAP-AKA are "
567 "enabled");
568 return 0;
569 }
570
571 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
572 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
573
574 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
575 if (wpa_s->scard == NULL) {
576 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
577 "(pcsc-lite)");
578 return -1;
579 }
580 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
581 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
582 #endif /* PCSC_FUNCS */
583 #endif /* IEEE8021X_EAPOL */
584
585 return 0;
586 }
587
588
589 #ifndef CONFIG_NO_SCAN_PROCESSING
590
591 #ifdef CONFIG_WEP
has_wep_key(struct wpa_ssid * ssid)592 static int has_wep_key(struct wpa_ssid *ssid)
593 {
594 int i;
595
596 for (i = 0; i < NUM_WEP_KEYS; i++) {
597 if (ssid->wep_key_len[i])
598 return 1;
599 }
600
601 return 0;
602 }
603 #endif /* CONFIG_WEP */
604
605
wpa_supplicant_match_privacy(struct wpa_bss * bss,struct wpa_ssid * ssid)606 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
607 struct wpa_ssid *ssid)
608 {
609 int privacy = 0;
610
611 if (ssid->mixed_cell)
612 return 1;
613
614 #ifdef CONFIG_WPS
615 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
616 return 1;
617 #endif /* CONFIG_WPS */
618
619 #ifdef CONFIG_OWE
620 if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only)
621 return 1;
622 #endif /* CONFIG_OWE */
623
624 #ifdef CONFIG_WEP
625 if (has_wep_key(ssid))
626 privacy = 1;
627 #endif /* CONFIG_WEP */
628
629 #ifdef IEEE8021X_EAPOL
630 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
631 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
632 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
633 privacy = 1;
634 #endif /* IEEE8021X_EAPOL */
635
636 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
637 privacy = 1;
638
639 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
640 privacy = 1;
641
642 if (bss->caps & IEEE80211_CAP_PRIVACY)
643 return privacy;
644 return !privacy;
645 }
646
647
wpa_supplicant_ssid_bss_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss,int debug_print)648 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
649 struct wpa_ssid *ssid,
650 struct wpa_bss *bss, int debug_print)
651 {
652 struct wpa_ie_data ie;
653 int proto_match = 0;
654 const u8 *rsn_ie, *wpa_ie;
655 int ret;
656 #ifdef CONFIG_WEP
657 int wep_ok;
658 #endif /* CONFIG_WEP */
659 bool is_6ghz_bss = is_6ghz_freq(bss->freq);
660
661 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
662 if (ret >= 0)
663 return ret;
664
665 #ifdef CONFIG_WEP
666 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
667 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
668 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
669 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
670 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
671 #endif /* CONFIG_WEP */
672
673 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
674 if (is_6ghz_bss && !rsn_ie) {
675 if (debug_print)
676 wpa_dbg(wpa_s, MSG_DEBUG,
677 " skip - 6 GHz BSS without RSNE");
678 return 0;
679 }
680
681 while ((ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)) && rsn_ie) {
682 proto_match++;
683
684 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
685 if (debug_print)
686 wpa_dbg(wpa_s, MSG_DEBUG,
687 " skip RSN IE - parse failed");
688 break;
689 }
690 if (!ie.has_pairwise)
691 ie.pairwise_cipher = wpa_default_rsn_cipher(bss->freq);
692 if (!ie.has_group)
693 ie.group_cipher = wpa_default_rsn_cipher(bss->freq);
694
695 if (is_6ghz_bss || !is_zero_ether_addr(bss->mld_addr)) {
696 /* WEP and TKIP are not allowed on 6 GHz/MLD */
697 ie.pairwise_cipher &= ~(WPA_CIPHER_WEP40 |
698 WPA_CIPHER_WEP104 |
699 WPA_CIPHER_TKIP);
700 ie.group_cipher &= ~(WPA_CIPHER_WEP40 |
701 WPA_CIPHER_WEP104 |
702 WPA_CIPHER_TKIP);
703 }
704
705 #ifdef CONFIG_WEP
706 if (wep_ok &&
707 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
708 {
709 if (debug_print)
710 wpa_dbg(wpa_s, MSG_DEBUG,
711 " selected based on TSN in RSN IE");
712 return 1;
713 }
714 #endif /* CONFIG_WEP */
715
716 if (!(ie.proto & ssid->proto) &&
717 !(ssid->proto & WPA_PROTO_OSEN)) {
718 if (debug_print)
719 wpa_dbg(wpa_s, MSG_DEBUG,
720 " skip RSN IE - proto mismatch");
721 break;
722 }
723
724 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
725 if (debug_print)
726 wpa_dbg(wpa_s, MSG_DEBUG,
727 " skip RSN IE - PTK cipher mismatch");
728 break;
729 }
730
731 if (!(ie.group_cipher & ssid->group_cipher)) {
732 if (debug_print)
733 wpa_dbg(wpa_s, MSG_DEBUG,
734 " skip RSN IE - GTK cipher mismatch");
735 break;
736 }
737
738 if (ssid->group_mgmt_cipher &&
739 !(ie.mgmt_group_cipher & ssid->group_mgmt_cipher)) {
740 if (debug_print)
741 wpa_dbg(wpa_s, MSG_DEBUG,
742 " skip RSN IE - group mgmt cipher mismatch");
743 break;
744 }
745
746 if (is_6ghz_bss) {
747 /* MFPC must be supported on 6 GHz */
748 if (!(ie.capabilities & WPA_CAPABILITY_MFPC)) {
749 if (debug_print)
750 wpa_dbg(wpa_s, MSG_DEBUG,
751 " skip RSNE - 6 GHz without MFPC");
752 break;
753 }
754
755 /* WPA PSK is not allowed on the 6 GHz band */
756 ie.key_mgmt &= ~(WPA_KEY_MGMT_PSK |
757 WPA_KEY_MGMT_FT_PSK |
758 WPA_KEY_MGMT_PSK_SHA256);
759 }
760
761 if (!(ie.key_mgmt & ssid->key_mgmt)) {
762 if (debug_print)
763 wpa_dbg(wpa_s, MSG_DEBUG,
764 " skip RSN IE - key mgmt mismatch");
765 break;
766 }
767
768 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
769 wpas_get_ssid_pmf(wpa_s, ssid) ==
770 MGMT_FRAME_PROTECTION_REQUIRED) {
771 if (debug_print)
772 wpa_dbg(wpa_s, MSG_DEBUG,
773 " skip RSN IE - no mgmt frame protection");
774 break;
775 }
776 if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
777 wpas_get_ssid_pmf(wpa_s, ssid) ==
778 NO_MGMT_FRAME_PROTECTION) {
779 if (debug_print)
780 wpa_dbg(wpa_s, MSG_DEBUG,
781 " skip RSN IE - no mgmt frame protection enabled but AP requires it");
782 break;
783 }
784
785 if (debug_print)
786 wpa_dbg(wpa_s, MSG_DEBUG,
787 " selected based on RSN IE");
788 return 1;
789 }
790
791 if (is_6ghz_bss) {
792 if (debug_print)
793 wpa_dbg(wpa_s, MSG_DEBUG,
794 " skip - 6 GHz BSS without matching RSNE");
795 return 0;
796 }
797
798 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
799
800 if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED &&
801 (!(ssid->key_mgmt & WPA_KEY_MGMT_OWE) || ssid->owe_only)) {
802 #ifdef CONFIG_OWE
803 if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && ssid->owe_only &&
804 !wpa_ie && !rsn_ie &&
805 wpa_s->owe_transition_select &&
806 wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE) &&
807 ssid->owe_transition_bss_select_count + 1 <=
808 MAX_OWE_TRANSITION_BSS_SELECT_COUNT) {
809 ssid->owe_transition_bss_select_count++;
810 if (debug_print)
811 wpa_dbg(wpa_s, MSG_DEBUG,
812 " skip OWE open BSS (selection count %d does not exceed %d)",
813 ssid->owe_transition_bss_select_count,
814 MAX_OWE_TRANSITION_BSS_SELECT_COUNT);
815 wpa_s->owe_transition_search = 1;
816 return 0;
817 }
818 #endif /* CONFIG_OWE */
819 if (debug_print)
820 wpa_dbg(wpa_s, MSG_DEBUG,
821 " skip - MFP Required but network not MFP Capable");
822 return 0;
823 }
824
825 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
826 proto_match++;
827
828 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
829 if (debug_print)
830 wpa_dbg(wpa_s, MSG_DEBUG,
831 " skip WPA IE - parse failed");
832 break;
833 }
834
835 #ifdef CONFIG_WEP
836 if (wep_ok &&
837 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
838 {
839 if (debug_print)
840 wpa_dbg(wpa_s, MSG_DEBUG,
841 " selected based on TSN in WPA IE");
842 return 1;
843 }
844 #endif /* CONFIG_WEP */
845
846 if (!(ie.proto & ssid->proto)) {
847 if (debug_print)
848 wpa_dbg(wpa_s, MSG_DEBUG,
849 " skip WPA IE - proto mismatch");
850 break;
851 }
852
853 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
854 if (debug_print)
855 wpa_dbg(wpa_s, MSG_DEBUG,
856 " skip WPA IE - PTK cipher mismatch");
857 break;
858 }
859
860 if (!(ie.group_cipher & ssid->group_cipher)) {
861 if (debug_print)
862 wpa_dbg(wpa_s, MSG_DEBUG,
863 " skip WPA IE - GTK cipher mismatch");
864 break;
865 }
866
867 if (!(ie.key_mgmt & ssid->key_mgmt)) {
868 if (debug_print)
869 wpa_dbg(wpa_s, MSG_DEBUG,
870 " skip WPA IE - key mgmt mismatch");
871 break;
872 }
873
874 if (debug_print)
875 wpa_dbg(wpa_s, MSG_DEBUG,
876 " selected based on WPA IE");
877 return 1;
878 }
879
880 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
881 !rsn_ie) {
882 if (debug_print)
883 wpa_dbg(wpa_s, MSG_DEBUG,
884 " allow for non-WPA IEEE 802.1X");
885 return 1;
886 }
887
888 #ifdef CONFIG_OWE
889 if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only &&
890 !wpa_ie && !rsn_ie) {
891 if (wpa_s->owe_transition_select &&
892 wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE) &&
893 ssid->owe_transition_bss_select_count + 1 <=
894 MAX_OWE_TRANSITION_BSS_SELECT_COUNT) {
895 ssid->owe_transition_bss_select_count++;
896 if (debug_print)
897 wpa_dbg(wpa_s, MSG_DEBUG,
898 " skip OWE transition BSS (selection count %d does not exceed %d)",
899 ssid->owe_transition_bss_select_count,
900 MAX_OWE_TRANSITION_BSS_SELECT_COUNT);
901 wpa_s->owe_transition_search = 1;
902 return 0;
903 }
904 if (debug_print)
905 wpa_dbg(wpa_s, MSG_DEBUG,
906 " allow in OWE transition mode");
907 return 1;
908 }
909 #endif /* CONFIG_OWE */
910
911 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
912 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
913 if (debug_print)
914 wpa_dbg(wpa_s, MSG_DEBUG,
915 " skip - no WPA/RSN proto match");
916 return 0;
917 }
918
919 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
920 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
921 if (debug_print)
922 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
923 return 1;
924 }
925
926 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
927 if (debug_print)
928 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
929 return 1;
930 }
931
932 if (debug_print)
933 wpa_dbg(wpa_s, MSG_DEBUG,
934 " reject due to mismatch with WPA/WPA2");
935
936 return 0;
937 }
938
939
freq_allowed(int * freqs,int freq)940 static int freq_allowed(int *freqs, int freq)
941 {
942 int i;
943
944 if (freqs == NULL)
945 return 1;
946
947 for (i = 0; freqs[i]; i++)
948 if (freqs[i] == freq)
949 return 1;
950 return 0;
951 }
952
953
rate_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss,int debug_print)954 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
955 struct wpa_bss *bss, int debug_print)
956 {
957 const struct hostapd_hw_modes *mode = NULL, *modes;
958 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
959 const u8 *rate_ie;
960 int i, j, k;
961
962 if (bss->freq == 0)
963 return 1; /* Cannot do matching without knowing band */
964
965 modes = wpa_s->hw.modes;
966 if (modes == NULL) {
967 /*
968 * The driver does not provide any additional information
969 * about the utilized hardware, so allow the connection attempt
970 * to continue.
971 */
972 return 1;
973 }
974
975 for (i = 0; i < wpa_s->hw.num_modes; i++) {
976 for (j = 0; j < modes[i].num_channels; j++) {
977 int freq = modes[i].channels[j].freq;
978 if (freq == bss->freq) {
979 if (mode &&
980 mode->mode == HOSTAPD_MODE_IEEE80211G)
981 break; /* do not allow 802.11b replace
982 * 802.11g */
983 mode = &modes[i];
984 break;
985 }
986 }
987 }
988
989 if (mode == NULL)
990 return 0;
991
992 for (i = 0; i < (int) sizeof(scan_ie); i++) {
993 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
994 if (rate_ie == NULL)
995 continue;
996
997 for (j = 2; j < rate_ie[1] + 2; j++) {
998 int flagged = !!(rate_ie[j] & 0x80);
999 int r = (rate_ie[j] & 0x7f) * 5;
1000
1001 /*
1002 * IEEE Std 802.11n-2009 7.3.2.2:
1003 * The new BSS Membership selector value is encoded
1004 * like a legacy basic rate, but it is not a rate and
1005 * only indicates if the BSS members are required to
1006 * support the mandatory features of Clause 20 [HT PHY]
1007 * in order to join the BSS.
1008 */
1009 if (flagged && ((rate_ie[j] & 0x7f) ==
1010 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
1011 if (!ht_supported(mode)) {
1012 if (debug_print)
1013 wpa_dbg(wpa_s, MSG_DEBUG,
1014 " hardware does not support HT PHY");
1015 return 0;
1016 }
1017 continue;
1018 }
1019
1020 /* There's also a VHT selector for 802.11ac */
1021 if (flagged && ((rate_ie[j] & 0x7f) ==
1022 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
1023 if (!vht_supported(mode)) {
1024 if (debug_print)
1025 wpa_dbg(wpa_s, MSG_DEBUG,
1026 " hardware does not support VHT PHY");
1027 return 0;
1028 }
1029 continue;
1030 }
1031
1032 if (flagged && ((rate_ie[j] & 0x7f) ==
1033 BSS_MEMBERSHIP_SELECTOR_HE_PHY)) {
1034 if (!he_supported(mode, IEEE80211_MODE_INFRA)) {
1035 if (debug_print)
1036 wpa_dbg(wpa_s, MSG_DEBUG,
1037 " hardware does not support HE PHY");
1038 return 0;
1039 }
1040 continue;
1041 }
1042
1043 #ifdef CONFIG_SAE
1044 if (flagged && ((rate_ie[j] & 0x7f) ==
1045 BSS_MEMBERSHIP_SELECTOR_SAE_H2E_ONLY)) {
1046 if (wpa_s->conf->sae_pwe ==
1047 SAE_PWE_HUNT_AND_PECK &&
1048 !ssid->sae_password_id &&
1049 !is_6ghz_freq(bss->freq) &&
1050 wpa_key_mgmt_sae(ssid->key_mgmt)) {
1051 if (debug_print)
1052 wpa_dbg(wpa_s, MSG_DEBUG,
1053 " SAE H2E disabled");
1054 #ifdef CONFIG_TESTING_OPTIONS
1055 if (wpa_s->ignore_sae_h2e_only) {
1056 wpa_dbg(wpa_s, MSG_DEBUG,
1057 "TESTING: Ignore SAE H2E requirement mismatch");
1058 continue;
1059 }
1060 #endif /* CONFIG_TESTING_OPTIONS */
1061 return 0;
1062 }
1063 continue;
1064 }
1065 #endif /* CONFIG_SAE */
1066
1067 if (!flagged)
1068 continue;
1069
1070 /* check for legacy basic rates */
1071 for (k = 0; k < mode->num_rates; k++) {
1072 if (mode->rates[k] == r)
1073 break;
1074 }
1075 if (k == mode->num_rates) {
1076 /*
1077 * IEEE Std 802.11-2007 7.3.2.2 demands that in
1078 * order to join a BSS all required rates
1079 * have to be supported by the hardware.
1080 */
1081 if (debug_print)
1082 wpa_dbg(wpa_s, MSG_DEBUG,
1083 " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
1084 r / 10, r % 10,
1085 bss->freq, mode->mode, mode->num_rates);
1086 return 0;
1087 }
1088 }
1089 }
1090
1091 return 1;
1092 }
1093
1094
1095 /*
1096 * Test whether BSS is in an ESS.
1097 * This is done differently in DMG (60 GHz) and non-DMG bands
1098 */
bss_is_ess(struct wpa_bss * bss)1099 static int bss_is_ess(struct wpa_bss *bss)
1100 {
1101 if (bss_is_dmg(bss)) {
1102 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
1103 IEEE80211_CAP_DMG_AP;
1104 }
1105
1106 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
1107 IEEE80211_CAP_ESS);
1108 }
1109
1110
match_mac_mask(const u8 * addr_a,const u8 * addr_b,const u8 * mask)1111 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
1112 {
1113 size_t i;
1114
1115 for (i = 0; i < ETH_ALEN; i++) {
1116 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
1117 return 0;
1118 }
1119 return 1;
1120 }
1121
1122
addr_in_list(const u8 * addr,const u8 * list,size_t num)1123 static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
1124 {
1125 size_t i;
1126
1127 for (i = 0; i < num; i++) {
1128 const u8 *a = list + i * ETH_ALEN * 2;
1129 const u8 *m = a + ETH_ALEN;
1130
1131 if (match_mac_mask(a, addr, m))
1132 return 1;
1133 }
1134 return 0;
1135 }
1136
1137
owe_trans_ssid(struct wpa_supplicant * wpa_s,struct wpa_bss * bss,const u8 ** ret_ssid,size_t * ret_ssid_len)1138 static void owe_trans_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
1139 const u8 **ret_ssid, size_t *ret_ssid_len)
1140 {
1141 #ifdef CONFIG_OWE
1142 const u8 *owe, *pos, *end, *bssid;
1143 u8 ssid_len;
1144
1145 owe = wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE);
1146 if (!owe || !wpa_bss_get_ie(bss, WLAN_EID_RSN))
1147 return;
1148
1149 pos = owe + 6;
1150 end = owe + 2 + owe[1];
1151
1152 if (end - pos < ETH_ALEN + 1)
1153 return;
1154 bssid = pos;
1155 pos += ETH_ALEN;
1156 ssid_len = *pos++;
1157 if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN)
1158 return;
1159
1160 /* Match the profile SSID against the OWE transition mode SSID on the
1161 * open network. */
1162 wpa_dbg(wpa_s, MSG_DEBUG, "OWE: transition mode BSSID: " MACSTR
1163 " SSID: %s", MAC2STR(bssid), wpa_ssid_txt(pos, ssid_len));
1164 *ret_ssid = pos;
1165 *ret_ssid_len = ssid_len;
1166
1167 if (!(bss->flags & WPA_BSS_OWE_TRANSITION)) {
1168 struct wpa_ssid *ssid;
1169
1170 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1171 if (wpas_network_disabled(wpa_s, ssid))
1172 continue;
1173 if (ssid->ssid_len == ssid_len &&
1174 os_memcmp(ssid->ssid, pos, ssid_len) == 0) {
1175 /* OWE BSS in transition mode for a currently
1176 * enabled OWE network. */
1177 wpa_dbg(wpa_s, MSG_DEBUG,
1178 "OWE: transition mode OWE SSID for active OWE profile");
1179 bss->flags |= WPA_BSS_OWE_TRANSITION;
1180 break;
1181 }
1182 }
1183 }
1184 #endif /* CONFIG_OWE */
1185 }
1186
1187
wpas_valid_ml_bss(struct wpa_supplicant * wpa_s,struct wpa_bss * bss)1188 static bool wpas_valid_ml_bss(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
1189 {
1190 u16 removed_links;
1191
1192 if (wpa_bss_parse_basic_ml_element(wpa_s, bss, NULL, NULL, NULL, NULL))
1193 return true;
1194
1195 if (!bss->valid_links)
1196 return true;
1197
1198 /* Check if the current BSS is going to be removed */
1199 removed_links = wpa_bss_parse_reconf_ml_element(wpa_s, bss);
1200 if (BIT(bss->mld_link_id) & removed_links)
1201 return false;
1202
1203 return true;
1204 }
1205
1206
disabled_freq(struct wpa_supplicant * wpa_s,int freq)1207 int disabled_freq(struct wpa_supplicant *wpa_s, int freq)
1208 {
1209 int i, j;
1210
1211 if (!wpa_s->hw.modes || !wpa_s->hw.num_modes)
1212 return 0;
1213
1214 for (j = 0; j < wpa_s->hw.num_modes; j++) {
1215 struct hostapd_hw_modes *mode = &wpa_s->hw.modes[j];
1216
1217 for (i = 0; i < mode->num_channels; i++) {
1218 struct hostapd_channel_data *chan = &mode->channels[i];
1219
1220 if (chan->freq == freq)
1221 return !!(chan->flag & HOSTAPD_CHAN_DISABLED);
1222 }
1223 }
1224
1225 return 1;
1226 }
1227
1228
1229 static bool wpa_scan_res_ok(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
1230 const u8 *match_ssid, size_t match_ssid_len,
1231 struct wpa_bss *bss, int bssid_ignore_count,
1232 bool debug_print);
1233
1234
1235 #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)1236 static bool sae_pk_acceptable_bss_with_pk(struct wpa_supplicant *wpa_s,
1237 struct wpa_bss *orig_bss,
1238 struct wpa_ssid *ssid,
1239 const u8 *match_ssid,
1240 size_t match_ssid_len)
1241 {
1242 struct wpa_bss *bss;
1243
1244 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1245 int count;
1246 const u8 *ie;
1247
1248 if (bss == orig_bss)
1249 continue;
1250 ie = wpa_bss_get_ie(bss, WLAN_EID_RSNX);
1251 if (!(ieee802_11_rsnx_capab(ie, WLAN_RSNX_CAPAB_SAE_PK)))
1252 continue;
1253
1254 /* TODO: Could be more thorough in checking what kind of
1255 * signal strength or throughput estimate would be acceptable
1256 * compared to the originally selected BSS. */
1257 if (bss->est_throughput < 2000)
1258 return false;
1259
1260 count = wpa_bssid_ignore_is_listed(wpa_s, bss->bssid);
1261 if (wpa_scan_res_ok(wpa_s, ssid, match_ssid, match_ssid_len,
1262 bss, count, 0))
1263 return true;
1264 }
1265
1266 return false;
1267 }
1268 #endif /* CONFIG_SAE_PK */
1269
1270
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)1271 static bool wpa_scan_res_ok(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
1272 const u8 *match_ssid, size_t match_ssid_len,
1273 struct wpa_bss *bss, int bssid_ignore_count,
1274 bool debug_print)
1275 {
1276 int res;
1277 bool wpa, check_ssid, osen, rsn_osen = false;
1278 struct wpa_ie_data data;
1279 #ifdef CONFIG_MBO
1280 const u8 *assoc_disallow;
1281 #endif /* CONFIG_MBO */
1282 #ifdef CONFIG_SAE
1283 u8 rsnxe_capa = 0;
1284 #endif /* CONFIG_SAE */
1285 const u8 *ie;
1286
1287 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1288 wpa = ie && ie[1];
1289 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1290 wpa |= ie && ie[1];
1291 if (ie && wpa_parse_wpa_ie_rsn(ie, 2 + ie[1], &data) == 0 &&
1292 (data.key_mgmt & WPA_KEY_MGMT_OSEN))
1293 rsn_osen = true;
1294 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
1295 osen = ie != NULL;
1296
1297 #ifdef CONFIG_SAE
1298 ie = wpa_bss_get_ie(bss, WLAN_EID_RSNX);
1299 if (ie && ie[1] >= 1)
1300 rsnxe_capa = ie[2];
1301 #endif /* CONFIG_SAE */
1302
1303 check_ssid = wpa || ssid->ssid_len > 0;
1304
1305 if (wpas_network_disabled(wpa_s, ssid)) {
1306 if (debug_print)
1307 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
1308 return false;
1309 }
1310
1311 res = wpas_temp_disabled(wpa_s, ssid);
1312 if (res > 0) {
1313 if (debug_print)
1314 wpa_dbg(wpa_s, MSG_DEBUG,
1315 " skip - disabled temporarily for %d second(s)",
1316 res);
1317 return false;
1318 }
1319
1320 #ifdef CONFIG_WPS
1321 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && bssid_ignore_count) {
1322 if (debug_print)
1323 wpa_dbg(wpa_s, MSG_DEBUG,
1324 " skip - BSSID ignored (WPS)");
1325 return false;
1326 }
1327
1328 if (wpa && ssid->ssid_len == 0 &&
1329 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
1330 check_ssid = false;
1331
1332 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
1333 /* Only allow wildcard SSID match if an AP advertises active
1334 * WPS operation that matches our mode. */
1335 check_ssid = ssid->ssid_len > 0 ||
1336 !wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss);
1337 }
1338 #endif /* CONFIG_WPS */
1339
1340 if (ssid->bssid_set && ssid->ssid_len == 0 &&
1341 ether_addr_equal(bss->bssid, ssid->bssid))
1342 check_ssid = false;
1343
1344 if (check_ssid &&
1345 (match_ssid_len != ssid->ssid_len ||
1346 os_memcmp(match_ssid, ssid->ssid, match_ssid_len) != 0)) {
1347 if (debug_print)
1348 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
1349 return false;
1350 }
1351
1352 if (ssid->bssid_set &&
1353 !ether_addr_equal(bss->bssid, ssid->bssid)) {
1354 if (debug_print)
1355 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
1356 return false;
1357 }
1358
1359 /* check the list of BSSIDs to ignore */
1360 if (ssid->num_bssid_ignore &&
1361 addr_in_list(bss->bssid, ssid->bssid_ignore,
1362 ssid->num_bssid_ignore)) {
1363 if (debug_print)
1364 wpa_dbg(wpa_s, MSG_DEBUG,
1365 " skip - BSSID configured to be ignored");
1366 return false;
1367 }
1368
1369 /* if there is a list of accepted BSSIDs, only accept those APs */
1370 if (ssid->num_bssid_accept &&
1371 !addr_in_list(bss->bssid, ssid->bssid_accept,
1372 ssid->num_bssid_accept)) {
1373 if (debug_print)
1374 wpa_dbg(wpa_s, MSG_DEBUG,
1375 " skip - BSSID not in list of accepted values");
1376 return false;
1377 }
1378
1379 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss, debug_print))
1380 return false;
1381
1382 if (!osen && !wpa &&
1383 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
1384 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
1385 !(ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
1386 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
1387 if (debug_print)
1388 wpa_dbg(wpa_s, MSG_DEBUG,
1389 " skip - non-WPA network not allowed");
1390 return false;
1391 }
1392
1393 #ifdef CONFIG_WEP
1394 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) && has_wep_key(ssid)) {
1395 if (debug_print)
1396 wpa_dbg(wpa_s, MSG_DEBUG,
1397 " skip - ignore WPA/WPA2 AP for WEP network block");
1398 return false;
1399 }
1400 #endif /* CONFIG_WEP */
1401
1402 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen && !rsn_osen) {
1403 if (debug_print)
1404 wpa_dbg(wpa_s, MSG_DEBUG,
1405 " skip - non-OSEN network not allowed");
1406 return false;
1407 }
1408
1409 if (!wpa_supplicant_match_privacy(bss, ssid)) {
1410 if (debug_print)
1411 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy mismatch");
1412 return false;
1413 }
1414
1415 if (ssid->mode != WPAS_MODE_MESH && !bss_is_ess(bss) &&
1416 !bss_is_pbss(bss)) {
1417 if (debug_print)
1418 wpa_dbg(wpa_s, MSG_DEBUG,
1419 " skip - not ESS, PBSS, or MBSS");
1420 return false;
1421 }
1422
1423 if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) {
1424 if (debug_print)
1425 wpa_dbg(wpa_s, MSG_DEBUG,
1426 " skip - PBSS mismatch (ssid %d bss %d)",
1427 ssid->pbss, bss_is_pbss(bss));
1428 return false;
1429 }
1430
1431 if (!freq_allowed(ssid->freq_list, bss->freq)) {
1432 if (debug_print)
1433 wpa_dbg(wpa_s, MSG_DEBUG,
1434 " skip - frequency not allowed");
1435 return false;
1436 }
1437
1438 #ifdef CONFIG_MESH
1439 if (ssid->mode == WPAS_MODE_MESH && ssid->frequency > 0 &&
1440 ssid->frequency != bss->freq) {
1441 if (debug_print)
1442 wpa_dbg(wpa_s, MSG_DEBUG,
1443 " skip - frequency not allowed (mesh)");
1444 return false;
1445 }
1446 #endif /* CONFIG_MESH */
1447
1448 if (!rate_match(wpa_s, ssid, bss, debug_print)) {
1449 if (debug_print)
1450 wpa_dbg(wpa_s, MSG_DEBUG,
1451 " skip - rate sets do not match");
1452 return false;
1453 }
1454
1455 #ifdef CONFIG_SAE
1456 /* When using SAE Password Identifier and when operationg on the 6 GHz
1457 * band, only H2E is allowed. */
1458 if ((wpa_s->conf->sae_pwe == SAE_PWE_HASH_TO_ELEMENT ||
1459 is_6ghz_freq(bss->freq) || ssid->sae_password_id) &&
1460 wpa_s->conf->sae_pwe != SAE_PWE_FORCE_HUNT_AND_PECK &&
1461 wpa_key_mgmt_sae(ssid->key_mgmt) &&
1462 !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_H2E))) {
1463 if (debug_print)
1464 wpa_dbg(wpa_s, MSG_DEBUG,
1465 " skip - SAE H2E required, but not supported by the AP");
1466 return false;
1467 }
1468 #endif /* CONFIG_SAE */
1469
1470 #ifdef CONFIG_SAE_PK
1471 if (ssid->sae_pk == SAE_PK_MODE_ONLY &&
1472 !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_PK))) {
1473 if (debug_print)
1474 wpa_dbg(wpa_s, MSG_DEBUG,
1475 " skip - SAE-PK required, but not supported by the AP");
1476 return false;
1477 }
1478 #endif /* CONFIG_SAE_PK */
1479
1480 #ifndef CONFIG_IBSS_RSN
1481 if (ssid->mode == WPAS_MODE_IBSS &&
1482 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE | WPA_KEY_MGMT_WPA_NONE))) {
1483 if (debug_print)
1484 wpa_dbg(wpa_s, MSG_DEBUG,
1485 " skip - IBSS RSN not supported in the build");
1486 return false;
1487 }
1488 #endif /* !CONFIG_IBSS_RSN */
1489
1490 #ifdef CONFIG_P2P
1491 if (ssid->p2p_group &&
1492 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1493 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1494 if (debug_print)
1495 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
1496 return false;
1497 }
1498
1499 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1500 struct wpabuf *p2p_ie;
1501 u8 dev_addr[ETH_ALEN];
1502
1503 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1504 if (!ie) {
1505 if (debug_print)
1506 wpa_dbg(wpa_s, MSG_DEBUG,
1507 " skip - no P2P element");
1508 return false;
1509 }
1510 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
1511 if (!p2p_ie) {
1512 if (debug_print)
1513 wpa_dbg(wpa_s, MSG_DEBUG,
1514 " skip - could not fetch P2P element");
1515 return false;
1516 }
1517
1518 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0 ||
1519 !ether_addr_equal(dev_addr, ssid->go_p2p_dev_addr)) {
1520 if (debug_print)
1521 wpa_dbg(wpa_s, MSG_DEBUG,
1522 " skip - no matching GO P2P Device Address in P2P element");
1523 wpabuf_free(p2p_ie);
1524 return false;
1525 }
1526 wpabuf_free(p2p_ie);
1527 }
1528
1529 /*
1530 * TODO: skip the AP if its P2P IE has Group Formation bit set in the
1531 * P2P Group Capability Bitmap and we are not in Group Formation with
1532 * that device.
1533 */
1534 #endif /* CONFIG_P2P */
1535
1536 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time)) {
1537 struct os_reltime diff;
1538
1539 os_reltime_sub(&wpa_s->scan_min_time, &bss->last_update, &diff);
1540 if (debug_print)
1541 wpa_dbg(wpa_s, MSG_DEBUG,
1542 " skip - scan result not recent enough (%u.%06u seconds too old)",
1543 (unsigned int) diff.sec,
1544 (unsigned int) diff.usec);
1545 return false;
1546 }
1547 #ifdef CONFIG_MBO
1548 #ifdef CONFIG_TESTING_OPTIONS
1549 if (wpa_s->ignore_assoc_disallow)
1550 goto skip_assoc_disallow;
1551 #endif /* CONFIG_TESTING_OPTIONS */
1552 assoc_disallow = wpas_mbo_check_assoc_disallow(bss);
1553 if (assoc_disallow && assoc_disallow[1] >= 1) {
1554 if (debug_print)
1555 wpa_dbg(wpa_s, MSG_DEBUG,
1556 " skip - MBO association disallowed (reason %u)",
1557 assoc_disallow[2]);
1558 return false;
1559 }
1560
1561 if (wpa_is_bss_tmp_disallowed(wpa_s, bss)) {
1562 if (debug_print)
1563 wpa_dbg(wpa_s, MSG_DEBUG,
1564 " skip - AP temporarily disallowed");
1565 return false;
1566 }
1567 #ifdef CONFIG_TESTING_OPTIONS
1568 skip_assoc_disallow:
1569 #endif /* CONFIG_TESTING_OPTIONS */
1570 #endif /* CONFIG_MBO */
1571
1572 #ifdef CONFIG_DPP
1573 if ((ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
1574 !wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, wpa_s->own_addr,
1575 ssid) &&
1576 (!ssid->dpp_connector || !ssid->dpp_netaccesskey ||
1577 !ssid->dpp_csign)) {
1578 if (debug_print)
1579 wpa_dbg(wpa_s, MSG_DEBUG,
1580 " skip - no PMKSA entry for DPP");
1581 return false;
1582 }
1583 #endif /* CONFIG_DPP */
1584
1585 #ifdef CONFIG_SAE_PK
1586 if (ssid->sae_pk == SAE_PK_MODE_AUTOMATIC &&
1587 wpa_key_mgmt_sae(ssid->key_mgmt) &&
1588 ((ssid->sae_password &&
1589 sae_pk_valid_password(ssid->sae_password)) ||
1590 (!ssid->sae_password && ssid->passphrase &&
1591 sae_pk_valid_password(ssid->passphrase))) &&
1592 !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_PK)) &&
1593 sae_pk_acceptable_bss_with_pk(wpa_s, bss, ssid, match_ssid,
1594 match_ssid_len)) {
1595 if (debug_print)
1596 wpa_dbg(wpa_s, MSG_DEBUG,
1597 " skip - another acceptable BSS with SAE-PK in the same ESS");
1598 return false;
1599 }
1600 #endif /* CONFIG_SAE_PK */
1601
1602 if (bss->ssid_len == 0) {
1603 #ifdef CONFIG_OWE
1604 const u8 *owe_ssid = NULL;
1605 size_t owe_ssid_len = 0;
1606
1607 owe_trans_ssid(wpa_s, bss, &owe_ssid, &owe_ssid_len);
1608 if (owe_ssid && owe_ssid_len &&
1609 owe_ssid_len == ssid->ssid_len &&
1610 os_memcmp(owe_ssid, ssid->ssid, owe_ssid_len) == 0) {
1611 if (debug_print)
1612 wpa_dbg(wpa_s, MSG_DEBUG,
1613 " skip - no SSID in BSS entry for a possible OWE transition mode BSS");
1614 int_array_add_unique(&wpa_s->owe_trans_scan_freq,
1615 bss->freq);
1616 return false;
1617 }
1618 #endif /* CONFIG_OWE */
1619 if (debug_print)
1620 wpa_dbg(wpa_s, MSG_DEBUG,
1621 " skip - no SSID known for the BSS");
1622 return false;
1623 }
1624
1625 if (!wpas_valid_ml_bss(wpa_s, bss)) {
1626 if (debug_print)
1627 wpa_dbg(wpa_s, MSG_DEBUG,
1628 " skip - ML BSS going to be removed");
1629 return false;
1630 }
1631
1632 /* Matching configuration found */
1633 return true;
1634 }
1635
1636
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)1637 struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
1638 int i, struct wpa_bss *bss,
1639 struct wpa_ssid *group,
1640 int only_first_ssid, int debug_print)
1641 {
1642 u8 wpa_ie_len, rsn_ie_len;
1643 const u8 *ie;
1644 struct wpa_ssid *ssid;
1645 int osen;
1646 const u8 *match_ssid;
1647 size_t match_ssid_len;
1648 int bssid_ignore_count;
1649
1650 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1651 wpa_ie_len = ie ? ie[1] : 0;
1652
1653 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1654 rsn_ie_len = ie ? ie[1] : 0;
1655
1656 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
1657 osen = ie != NULL;
1658
1659 if (debug_print) {
1660 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR
1661 " ssid='%s' wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
1662 i, MAC2STR(bss->bssid),
1663 wpa_ssid_txt(bss->ssid, bss->ssid_len),
1664 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
1665 bss->freq,
1666 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ?
1667 " wps" : "",
1668 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
1669 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE))
1670 ? " p2p" : "",
1671 osen ? " osen=1" : "");
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))
1735 return ssid;
1736 }
1737
1738 /* No matching configuration found */
1739 return NULL;
1740 }
1741
1742
1743 static struct wpa_bss *
wpa_supplicant_select_bss(struct wpa_supplicant * wpa_s,struct wpa_ssid * group,struct wpa_ssid ** selected_ssid,int only_first_ssid)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);
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);
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)1798 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1799 struct wpa_ssid **selected_ssid)
1800 {
1801 struct wpa_bss *selected = NULL;
1802 size_t prio;
1803 struct wpa_ssid *next_ssid = NULL;
1804 struct wpa_ssid *ssid;
1805
1806 if (wpa_s->last_scan_res == NULL ||
1807 wpa_s->last_scan_res_used == 0)
1808 return NULL; /* no scan results from last update */
1809
1810 if (wpa_s->next_ssid) {
1811 /* check that next_ssid is still valid */
1812 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1813 if (ssid == wpa_s->next_ssid)
1814 break;
1815 }
1816 next_ssid = ssid;
1817 wpa_s->next_ssid = NULL;
1818 }
1819
1820 while (selected == NULL) {
1821 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1822 if (next_ssid && next_ssid->priority ==
1823 wpa_s->conf->pssid[prio]->priority) {
1824 selected = wpa_supplicant_select_bss(
1825 wpa_s, next_ssid, selected_ssid, 1);
1826 if (selected)
1827 break;
1828 }
1829 selected = wpa_supplicant_select_bss(
1830 wpa_s, wpa_s->conf->pssid[prio],
1831 selected_ssid, 0);
1832 if (selected)
1833 break;
1834 }
1835
1836 if (!selected &&
1837 (wpa_s->bssid_ignore || wnm_active_bss_trans_mgmt(wpa_s)) &&
1838 !wpa_s->countermeasures) {
1839 wpa_dbg(wpa_s, MSG_DEBUG,
1840 "No APs found - clear BSSID ignore list and try again");
1841 wnm_btm_reset(wpa_s);
1842 wpa_bssid_ignore_clear(wpa_s);
1843 wpa_s->bssid_ignore_cleared = true;
1844 } else if (selected == NULL)
1845 break;
1846 }
1847
1848 ssid = *selected_ssid;
1849 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1850 !ssid->passphrase && !ssid->ext_psk) {
1851 const char *field_name, *txt = NULL;
1852
1853 wpa_dbg(wpa_s, MSG_DEBUG,
1854 "PSK/passphrase not yet available for the selected network");
1855
1856 wpas_notify_network_request(wpa_s, ssid,
1857 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1858
1859 field_name = wpa_supplicant_ctrl_req_to_string(
1860 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1861 if (field_name == NULL)
1862 return NULL;
1863
1864 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1865
1866 selected = NULL;
1867 }
1868
1869 return selected;
1870 }
1871
1872
wpa_supplicant_req_new_scan(struct wpa_supplicant * wpa_s,int timeout_sec,int timeout_usec)1873 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1874 int timeout_sec, int timeout_usec)
1875 {
1876 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1877 /*
1878 * No networks are enabled; short-circuit request so
1879 * we don't wait timeout seconds before transitioning
1880 * to INACTIVE state.
1881 */
1882 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1883 "since there are no enabled networks");
1884 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1885 return;
1886 }
1887
1888 wpa_s->scan_for_connection = 1;
1889 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1890 }
1891
1892
ml_link_probe_scan(struct wpa_supplicant * wpa_s)1893 static bool ml_link_probe_scan(struct wpa_supplicant *wpa_s)
1894 {
1895 if (!wpa_s->ml_connect_probe_ssid || !wpa_s->ml_connect_probe_bss)
1896 return false;
1897
1898 wpa_msg(wpa_s, MSG_DEBUG,
1899 "Request association with " MACSTR " after ML probe",
1900 MAC2STR(wpa_s->ml_connect_probe_bss->bssid));
1901
1902 wpa_supplicant_associate(wpa_s, wpa_s->ml_connect_probe_bss,
1903 wpa_s->ml_connect_probe_ssid);
1904
1905 wpa_s->ml_connect_probe_ssid = NULL;
1906 wpa_s->ml_connect_probe_bss = NULL;
1907
1908 return true;
1909 }
1910
1911
wpa_supplicant_connect_ml_missing(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)1912 static int wpa_supplicant_connect_ml_missing(struct wpa_supplicant *wpa_s,
1913 struct wpa_bss *selected,
1914 struct wpa_ssid *ssid)
1915 {
1916 int *freqs;
1917 u16 missing_links = 0, removed_links;
1918 u8 ap_mld_id;
1919
1920 if (!((wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_MLO) &&
1921 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)))
1922 return 0;
1923
1924 if (wpa_bss_parse_basic_ml_element(wpa_s, selected, NULL,
1925 &missing_links, ssid,
1926 &ap_mld_id) ||
1927 !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 wpa_s->manual_scan_passive = 0;
1951 wpa_s->manual_scan_use_id = 0;
1952 wpa_s->manual_scan_only_new = 0;
1953 wpa_s->scan_id_count = 0;
1954 os_free(wpa_s->manual_scan_freqs);
1955 wpa_s->manual_scan_freqs = freqs;
1956
1957 os_memcpy(wpa_s->ml_probe_bssid, selected->bssid, ETH_ALEN);
1958
1959 /*
1960 * In case the ML probe request is intended to retrieve information from
1961 * the transmitted BSS, the AP MLD ID should be included and should be
1962 * set to zero.
1963 * In case the ML probe requested is intended to retrieve information
1964 * from a non-transmitted BSS, the AP MLD ID should not be included.
1965 */
1966 if (ap_mld_id)
1967 wpa_s->ml_probe_mld_id = -1;
1968 else
1969 wpa_s->ml_probe_mld_id = 0;
1970
1971 if (ssid && ssid->ssid_len) {
1972 os_free(wpa_s->ssids_from_scan_req);
1973 wpa_s->num_ssids_from_scan_req = 0;
1974
1975 wpa_s->ssids_from_scan_req =
1976 os_zalloc(sizeof(struct wpa_ssid_value));
1977 if (wpa_s->ssids_from_scan_req) {
1978 wpa_printf(MSG_DEBUG,
1979 "MLD: ML probe: With direct SSID");
1980
1981 wpa_s->num_ssids_from_scan_req = 1;
1982 wpa_s->ssids_from_scan_req[0].ssid_len = ssid->ssid_len;
1983 os_memcpy(wpa_s->ssids_from_scan_req[0].ssid,
1984 ssid->ssid, ssid->ssid_len);
1985 }
1986 }
1987
1988 wpa_s->ml_probe_links = missing_links;
1989
1990 wpa_s->normal_scans = 0;
1991 wpa_s->scan_req = MANUAL_SCAN_REQ;
1992 wpa_s->after_wps = 0;
1993 wpa_s->known_wps_freq = 0;
1994 wpa_supplicant_req_scan(wpa_s, 0, 0);
1995
1996 return 1;
1997 }
1998
1999
wpa_supplicant_connect(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)2000 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
2001 struct wpa_bss *selected,
2002 struct wpa_ssid *ssid)
2003 {
2004 #ifdef IEEE8021X_EAPOL
2005 if ((eap_is_wps_pbc_enrollee(&ssid->eap) &&
2006 wpas_wps_partner_link_overlap_detect(wpa_s)) ||
2007 wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
2008 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
2009 "PBC session overlap");
2010 wpas_notify_wps_event_pbc_overlap(wpa_s);
2011 wpa_s->wps_overlap = true;
2012 #ifdef CONFIG_P2P
2013 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
2014 wpa_s->p2p_in_provisioning) {
2015 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
2016 wpa_s, NULL);
2017 return -1;
2018 }
2019 #endif /* CONFIG_P2P */
2020
2021 #ifdef CONFIG_WPS
2022 wpas_wps_pbc_overlap(wpa_s);
2023 wpas_wps_cancel(wpa_s);
2024 #endif /* CONFIG_WPS */
2025 return -1;
2026 }
2027 #endif /* IEEE8021X_EAPOL */
2028
2029 wpa_msg(wpa_s, MSG_DEBUG,
2030 "Considering connect request: reassociate: %d selected: "
2031 MACSTR " bssid: " MACSTR " pending: " MACSTR
2032 " wpa_state: %s ssid=%p current_ssid=%p",
2033 wpa_s->reassociate, MAC2STR(selected->bssid),
2034 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
2035 wpa_supplicant_state_txt(wpa_s->wpa_state),
2036 ssid, wpa_s->current_ssid);
2037
2038 /*
2039 * Do not trigger new association unless the BSSID has changed or if
2040 * reassociation is requested. If we are in process of associating with
2041 * the selected BSSID, do not trigger new attempt.
2042 */
2043 if (wpa_s->reassociate ||
2044 (!ether_addr_equal(selected->bssid, wpa_s->bssid) &&
2045 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
2046 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
2047 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
2048 !ether_addr_equal(selected->bssid, wpa_s->pending_bssid)) ||
2049 (is_zero_ether_addr(wpa_s->pending_bssid) &&
2050 ssid != wpa_s->current_ssid)))) {
2051 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
2052 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
2053 return 0;
2054 }
2055
2056 if (wpa_supplicant_connect_ml_missing(wpa_s, selected, ssid))
2057 return 0;
2058
2059 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
2060 MAC2STR(selected->bssid));
2061 wpa_supplicant_associate(wpa_s, selected, ssid);
2062 } else {
2063 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
2064 "connect with the selected AP");
2065 }
2066
2067 return 0;
2068 }
2069
2070
2071 static struct wpa_ssid *
wpa_supplicant_pick_new_network(struct wpa_supplicant * wpa_s)2072 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
2073 {
2074 size_t prio;
2075 struct wpa_ssid *ssid;
2076
2077 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
2078 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
2079 {
2080 if (wpas_network_disabled(wpa_s, ssid))
2081 continue;
2082 #ifndef CONFIG_IBSS_RSN
2083 if (ssid->mode == WPAS_MODE_IBSS &&
2084 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE |
2085 WPA_KEY_MGMT_WPA_NONE))) {
2086 wpa_msg(wpa_s, MSG_INFO,
2087 "IBSS RSN not supported in the build - cannot use the profile for SSID '%s'",
2088 wpa_ssid_txt(ssid->ssid,
2089 ssid->ssid_len));
2090 continue;
2091 }
2092 #endif /* !CONFIG_IBSS_RSN */
2093 if (ssid->mode == WPAS_MODE_IBSS ||
2094 ssid->mode == WPAS_MODE_AP ||
2095 ssid->mode == WPAS_MODE_MESH)
2096 return ssid;
2097 }
2098 }
2099 return NULL;
2100 }
2101
2102
2103 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
2104 * on BSS added and BSS changed events */
wpa_supplicant_rsn_preauth_scan_results(struct wpa_supplicant * wpa_s)2105 static void wpa_supplicant_rsn_preauth_scan_results(
2106 struct wpa_supplicant *wpa_s)
2107 {
2108 struct wpa_bss *bss;
2109
2110 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
2111 return;
2112
2113 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
2114 const u8 *ssid, *rsn;
2115
2116 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
2117 if (ssid == NULL)
2118 continue;
2119
2120 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
2121 if (rsn == NULL)
2122 continue;
2123
2124 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
2125 }
2126
2127 }
2128
2129
2130 #ifndef CONFIG_NO_ROAMING
2131
wpas_get_snr_signal_info(u32 frequency,int avg_signal,int noise)2132 static int wpas_get_snr_signal_info(u32 frequency, int avg_signal, int noise)
2133 {
2134 if (noise == WPA_INVALID_NOISE) {
2135 if (IS_5GHZ(frequency)) {
2136 noise = DEFAULT_NOISE_FLOOR_5GHZ;
2137 } else if (is_6ghz_freq(frequency)) {
2138 noise = DEFAULT_NOISE_FLOOR_6GHZ;
2139 } else {
2140 noise = DEFAULT_NOISE_FLOOR_2GHZ;
2141 }
2142 }
2143 return avg_signal - noise;
2144 }
2145
2146
2147 static unsigned int
wpas_get_est_throughput_from_bss_snr(const struct wpa_supplicant * wpa_s,const struct wpa_bss * bss,int snr)2148 wpas_get_est_throughput_from_bss_snr(const struct wpa_supplicant *wpa_s,
2149 const struct wpa_bss *bss, int snr)
2150 {
2151 int rate = wpa_bss_get_max_rate(bss);
2152 const u8 *ies = wpa_bss_ie_ptr(bss);
2153 size_t ie_len = bss->ie_len ? bss->ie_len : bss->beacon_ie_len;
2154 enum chan_width max_cw = CHAN_WIDTH_UNKNOWN;
2155
2156 return wpas_get_est_tpt(wpa_s, ies, ie_len, rate, snr, bss->freq,
2157 &max_cw);
2158 }
2159
2160
wpas_evaluate_band_score(int frequency)2161 static int wpas_evaluate_band_score(int frequency)
2162 {
2163 if (is_6ghz_freq(frequency))
2164 return 2;
2165 if (IS_5GHZ(frequency))
2166 return 1;
2167 return 0;
2168 }
2169
2170
wpa_supplicant_need_to_roam_within_ess(struct wpa_supplicant * wpa_s,struct wpa_bss * current_bss,struct wpa_bss * selected)2171 int wpa_supplicant_need_to_roam_within_ess(struct wpa_supplicant *wpa_s,
2172 struct wpa_bss *current_bss,
2173 struct wpa_bss *selected)
2174 {
2175 int min_diff, diff;
2176 int cur_band_score, sel_band_score;
2177 int to_5ghz, to_6ghz;
2178 int cur_level, sel_level;
2179 unsigned int cur_est, sel_est;
2180 struct wpa_signal_info si;
2181 int cur_snr = 0;
2182 int ret = 0;
2183 const u8 *cur_ies = wpa_bss_ie_ptr(current_bss);
2184 const u8 *sel_ies = wpa_bss_ie_ptr(selected);
2185 size_t cur_ie_len = current_bss->ie_len ? current_bss->ie_len :
2186 current_bss->beacon_ie_len;
2187 size_t sel_ie_len = selected->ie_len ? selected->ie_len :
2188 selected->beacon_ie_len;
2189
2190 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
2191 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
2192 " freq=%d level=%d snr=%d est_throughput=%u",
2193 MAC2STR(current_bss->bssid),
2194 current_bss->freq, current_bss->level,
2195 current_bss->snr, current_bss->est_throughput);
2196 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
2197 " freq=%d level=%d snr=%d est_throughput=%u",
2198 MAC2STR(selected->bssid), selected->freq, selected->level,
2199 selected->snr, selected->est_throughput);
2200
2201 if (wpas_ap_link_address(wpa_s, selected->bssid)) {
2202 wpa_dbg(wpa_s, MSG_DEBUG, "MLD: associated to selected BSS");
2203 return 0;
2204 }
2205
2206 if (wpa_s->current_ssid->bssid_set &&
2207 ether_addr_equal(selected->bssid, wpa_s->current_ssid->bssid)) {
2208 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
2209 "has preferred BSSID");
2210 return 1;
2211 }
2212
2213 /*
2214 * Try to poll the signal from the driver since this will allow to get
2215 * more accurate values. In some cases, there can be big differences
2216 * between the RSSI of the Probe Response frames of the AP we are
2217 * associated with and the Beacon frames we hear from the same AP after
2218 * association. This can happen, e.g., when there are two antennas that
2219 * hear the AP very differently. If the driver chooses to hear the
2220 * Probe Response frames during the scan on the "bad" antenna because
2221 * it wants to save power, but knows to choose the other antenna after
2222 * association, we will hear our AP with a low RSSI as part of the
2223 * scan even when we can hear it decently on the other antenna. To cope
2224 * with this, ask the driver to teach us how it hears the AP. Also, the
2225 * scan results may be a bit old, since we can very quickly get fresh
2226 * information about our currently associated AP.
2227 */
2228 if (wpa_drv_signal_poll(wpa_s, &si) == 0 &&
2229 (si.data.avg_beacon_signal || si.data.avg_signal)) {
2230 /*
2231 * Normalize avg_signal to the RSSI over 20 MHz, as the
2232 * throughput is estimated based on the RSSI over 20 MHz
2233 */
2234 cur_level = si.data.avg_beacon_signal ?
2235 si.data.avg_beacon_signal :
2236 (si.data.avg_signal -
2237 wpas_channel_width_rssi_bump(cur_ies, cur_ie_len,
2238 si.chanwidth));
2239 cur_snr = wpas_get_snr_signal_info(si.frequency, cur_level,
2240 si.current_noise);
2241
2242 cur_est = wpas_get_est_throughput_from_bss_snr(wpa_s,
2243 current_bss,
2244 cur_snr);
2245 wpa_dbg(wpa_s, MSG_DEBUG,
2246 "Using signal poll values for the current BSS: level=%d snr=%d est_throughput=%u",
2247 cur_level, cur_snr, cur_est);
2248 } else {
2249 /* Level and SNR are measured over 20 MHz channel */
2250 cur_level = current_bss->level;
2251 cur_snr = current_bss->snr;
2252 cur_est = current_bss->est_throughput;
2253 }
2254
2255 /* Adjust the SNR of BSSes based on the channel width. */
2256 cur_level += wpas_channel_width_rssi_bump(cur_ies, cur_ie_len,
2257 current_bss->max_cw);
2258 cur_snr = wpas_adjust_snr_by_chanwidth(cur_ies, cur_ie_len,
2259 current_bss->max_cw, cur_snr);
2260
2261 sel_est = selected->est_throughput;
2262 sel_level = selected->level +
2263 wpas_channel_width_rssi_bump(sel_ies, sel_ie_len,
2264 selected->max_cw);
2265
2266 if (sel_est > cur_est + 5000) {
2267 wpa_dbg(wpa_s, MSG_DEBUG,
2268 "Allow reassociation - selected BSS has better estimated throughput");
2269 return 1;
2270 }
2271
2272 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
2273 to_6ghz = is_6ghz_freq(selected->freq) &&
2274 !is_6ghz_freq(current_bss->freq);
2275
2276 if (cur_level < 0 &&
2277 cur_level > sel_level + to_5ghz * 2 + to_6ghz * 2 &&
2278 sel_est < cur_est * 1.2) {
2279 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
2280 "signal level");
2281 return 0;
2282 }
2283
2284 if (cur_est > sel_est + 5000) {
2285 wpa_dbg(wpa_s, MSG_DEBUG,
2286 "Skip roam - Current BSS has better estimated throughput");
2287 return 0;
2288 }
2289
2290 if (cur_snr > GREAT_SNR) {
2291 wpa_dbg(wpa_s, MSG_DEBUG,
2292 "Skip roam - Current BSS has good SNR (%u > %u)",
2293 cur_snr, GREAT_SNR);
2294 return 0;
2295 }
2296
2297 if (cur_level < -85) /* ..-86 dBm */
2298 min_diff = 1;
2299 else if (cur_level < -80) /* -85..-81 dBm */
2300 min_diff = 2;
2301 else if (cur_level < -75) /* -80..-76 dBm */
2302 min_diff = 3;
2303 else if (cur_level < -70) /* -75..-71 dBm */
2304 min_diff = 4;
2305 else if (cur_level < 0) /* -70..-1 dBm */
2306 min_diff = 5;
2307 else /* unspecified units (not in dBm) */
2308 min_diff = 2;
2309
2310 if (cur_est > sel_est * 1.5)
2311 min_diff += 10;
2312 else if (cur_est > sel_est * 1.2)
2313 min_diff += 5;
2314 else if (cur_est > sel_est * 1.1)
2315 min_diff += 2;
2316 else if (cur_est > sel_est)
2317 min_diff++;
2318 else if (sel_est > cur_est * 1.5)
2319 min_diff -= 10;
2320 else if (sel_est > cur_est * 1.2)
2321 min_diff -= 5;
2322 else if (sel_est > cur_est * 1.1)
2323 min_diff -= 2;
2324 else if (sel_est > cur_est)
2325 min_diff--;
2326
2327 cur_band_score = wpas_evaluate_band_score(current_bss->freq);
2328 sel_band_score = wpas_evaluate_band_score(selected->freq);
2329 min_diff += (cur_band_score - sel_band_score) * 2;
2330 if (wpa_s->signal_threshold && cur_level <= wpa_s->signal_threshold &&
2331 sel_level > wpa_s->signal_threshold)
2332 min_diff -= 2;
2333 diff = sel_level - cur_level;
2334 if (diff < min_diff) {
2335 wpa_dbg(wpa_s, MSG_DEBUG,
2336 "Skip roam - too small difference in signal level (%d < %d)",
2337 diff, min_diff);
2338 ret = 0;
2339 } else {
2340 wpa_dbg(wpa_s, MSG_DEBUG,
2341 "Allow reassociation due to difference in signal level (%d >= %d)",
2342 diff, min_diff);
2343 ret = 1;
2344 }
2345 wpa_msg_ctrl(wpa_s, MSG_INFO, "%scur_bssid=" MACSTR
2346 " cur_freq=%d cur_level=%d cur_est=%d sel_bssid=" MACSTR
2347 " sel_freq=%d sel_level=%d sel_est=%d",
2348 ret ? WPA_EVENT_DO_ROAM : WPA_EVENT_SKIP_ROAM,
2349 MAC2STR(current_bss->bssid),
2350 current_bss->freq, cur_level, cur_est,
2351 MAC2STR(selected->bssid),
2352 selected->freq, sel_level, sel_est);
2353 return ret;
2354 }
2355
2356 #endif /* CONFIG_NO_ROAMING */
2357
2358
wpa_supplicant_need_to_roam(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)2359 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
2360 struct wpa_bss *selected,
2361 struct wpa_ssid *ssid)
2362 {
2363 struct wpa_bss *current_bss = NULL;
2364 const u8 *bssid;
2365
2366 if (wpa_s->reassociate)
2367 return 1; /* explicit request to reassociate */
2368 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2369 return 1; /* we are not associated; continue */
2370 if (wpa_s->current_ssid == NULL)
2371 return 1; /* unknown current SSID */
2372 if (wpa_s->current_ssid != ssid)
2373 return 1; /* different network block */
2374
2375 if (wpas_driver_bss_selection(wpa_s))
2376 return 0; /* Driver-based roaming */
2377
2378 if (wpa_s->valid_links)
2379 bssid = wpa_s->links[wpa_s->mlo_assoc_link_id].bssid;
2380 else
2381 bssid = wpa_s->bssid;
2382
2383 if (wpa_s->current_ssid->ssid)
2384 current_bss = wpa_bss_get(wpa_s, bssid,
2385 wpa_s->current_ssid->ssid,
2386 wpa_s->current_ssid->ssid_len);
2387 if (!current_bss)
2388 current_bss = wpa_bss_get_bssid(wpa_s, bssid);
2389
2390 if (!current_bss)
2391 return 1; /* current BSS not seen in scan results */
2392
2393 if (current_bss == selected)
2394 return 0;
2395
2396 if (selected->last_update_idx > current_bss->last_update_idx)
2397 return 1; /* current BSS not seen in the last scan */
2398
2399 #ifndef CONFIG_NO_ROAMING
2400 return wpa_supplicant_need_to_roam_within_ess(wpa_s, current_bss,
2401 selected);
2402 #else /* CONFIG_NO_ROAMING */
2403 return 0;
2404 #endif /* CONFIG_NO_ROAMING */
2405 }
2406
2407
2408 /*
2409 * Return a negative value if no scan results could be fetched or if scan
2410 * results should not be shared with other virtual interfaces.
2411 * Return 0 if scan results were fetched and may be shared with other
2412 * interfaces.
2413 * Return 1 if scan results may be shared with other virtual interfaces but may
2414 * not trigger any operations.
2415 * Return 2 if the interface was removed and cannot be used.
2416 */
_wpa_supplicant_event_scan_results(struct wpa_supplicant * wpa_s,union wpa_event_data * data,int own_request,int update_only)2417 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
2418 union wpa_event_data *data,
2419 int own_request, int update_only)
2420 {
2421 struct wpa_scan_results *scan_res = NULL;
2422 int ret = 0;
2423 int ap = 0;
2424 bool trigger_6ghz_scan;
2425 #ifndef CONFIG_NO_RANDOM_POOL
2426 size_t i, num;
2427 #endif /* CONFIG_NO_RANDOM_POOL */
2428
2429 #ifdef CONFIG_AP
2430 if (wpa_s->ap_iface)
2431 ap = 1;
2432 #endif /* CONFIG_AP */
2433
2434 trigger_6ghz_scan = wpa_s->crossed_6ghz_dom &&
2435 wpa_s->last_scan_all_chan;
2436 wpa_s->crossed_6ghz_dom = false;
2437 wpa_s->last_scan_all_chan = false;
2438
2439 wpa_supplicant_notify_scanning(wpa_s, 0);
2440
2441 scan_res = wpa_supplicant_get_scan_results(wpa_s,
2442 data ? &data->scan_info :
2443 NULL, 1, NULL);
2444 if (scan_res == NULL) {
2445 if (wpa_s->conf->ap_scan == 2 || ap ||
2446 wpa_s->scan_res_handler == scan_only_handler)
2447 return -1;
2448 if (!own_request)
2449 return -1;
2450 if (data && data->scan_info.external_scan)
2451 return -1;
2452 if (wpa_s->scan_res_fail_handler) {
2453 void (*handler)(struct wpa_supplicant *wpa_s);
2454
2455 handler = wpa_s->scan_res_fail_handler;
2456 wpa_s->scan_res_fail_handler = NULL;
2457 handler(wpa_s);
2458 } else {
2459 wpa_dbg(wpa_s, MSG_DEBUG,
2460 "Failed to get scan results - try scanning again");
2461 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
2462 }
2463
2464 ret = -1;
2465 goto scan_work_done;
2466 }
2467
2468 #ifndef CONFIG_NO_RANDOM_POOL
2469 num = scan_res->num;
2470 if (num > 10)
2471 num = 10;
2472 for (i = 0; i < num; i++) {
2473 u8 buf[5];
2474 struct wpa_scan_res *res = scan_res->res[i];
2475 buf[0] = res->bssid[5];
2476 buf[1] = res->qual & 0xff;
2477 buf[2] = res->noise & 0xff;
2478 buf[3] = res->level & 0xff;
2479 buf[4] = res->tsf & 0xff;
2480 random_add_randomness(buf, sizeof(buf));
2481 }
2482 #endif /* CONFIG_NO_RANDOM_POOL */
2483
2484 if (update_only) {
2485 ret = 1;
2486 goto scan_work_done;
2487 }
2488
2489 if (own_request && wpa_s->scan_res_handler &&
2490 !(data && data->scan_info.external_scan)) {
2491 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
2492 struct wpa_scan_results *scan_res);
2493
2494 scan_res_handler = wpa_s->scan_res_handler;
2495 wpa_s->scan_res_handler = NULL;
2496 scan_res_handler(wpa_s, scan_res);
2497 ret = 1;
2498 goto scan_work_done;
2499 }
2500
2501 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
2502 wpa_s->own_scan_running,
2503 data ? data->scan_info.external_scan : 0);
2504 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
2505 wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
2506 own_request && !(data && data->scan_info.external_scan)) {
2507 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
2508 wpa_s->manual_scan_id);
2509 wpa_s->manual_scan_use_id = 0;
2510 } else {
2511 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
2512 }
2513 wpas_notify_scan_results(wpa_s);
2514
2515 wpas_notify_scan_done(wpa_s, 1);
2516
2517 if (ap) {
2518 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
2519 #ifdef CONFIG_AP
2520 if (wpa_s->ap_iface->scan_cb)
2521 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
2522 #endif /* CONFIG_AP */
2523 goto scan_work_done;
2524 }
2525
2526 if (data && data->scan_info.external_scan) {
2527 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
2528 wpa_scan_results_free(scan_res);
2529 return 0;
2530 }
2531
2532 if (wnm_scan_process(wpa_s, false) > 0)
2533 goto scan_work_done;
2534
2535 if (sme_proc_obss_scan(wpa_s) > 0)
2536 goto scan_work_done;
2537
2538 #ifndef CONFIG_NO_RRM
2539 if (own_request && data &&
2540 wpas_beacon_rep_scan_process(wpa_s, scan_res, &data->scan_info) > 0)
2541 goto scan_work_done;
2542 #endif /* CONFIG_NO_RRM */
2543
2544 if (ml_link_probe_scan(wpa_s))
2545 goto scan_work_done;
2546
2547 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
2548 goto scan_work_done;
2549
2550 if (autoscan_notify_scan(wpa_s, scan_res))
2551 goto scan_work_done;
2552
2553 if (wpa_s->disconnected) {
2554 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2555 goto scan_work_done;
2556 }
2557
2558 if (!wpas_driver_bss_selection(wpa_s) &&
2559 bgscan_notify_scan(wpa_s, scan_res) == 1)
2560 goto scan_work_done;
2561
2562 wpas_wps_update_ap_info(wpa_s, scan_res);
2563
2564 if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
2565 wpa_s->wpa_state < WPA_COMPLETED)
2566 goto scan_work_done;
2567
2568 wpa_scan_results_free(scan_res);
2569
2570 if (own_request && wpa_s->scan_work) {
2571 struct wpa_radio_work *work = wpa_s->scan_work;
2572 wpa_s->scan_work = NULL;
2573 radio_work_done(work);
2574 }
2575
2576 os_free(wpa_s->last_scan_freqs);
2577 wpa_s->last_scan_freqs = NULL;
2578 wpa_s->num_last_scan_freqs = 0;
2579 if (own_request && data &&
2580 data->scan_info.freqs && data->scan_info.num_freqs) {
2581 wpa_s->last_scan_freqs = os_malloc(sizeof(int) *
2582 data->scan_info.num_freqs);
2583 if (wpa_s->last_scan_freqs) {
2584 os_memcpy(wpa_s->last_scan_freqs,
2585 data->scan_info.freqs,
2586 sizeof(int) * data->scan_info.num_freqs);
2587 wpa_s->num_last_scan_freqs = data->scan_info.num_freqs;
2588 }
2589 }
2590
2591 if (wpa_s->supp_pbc_active && !wpas_wps_partner_link_scan_done(wpa_s))
2592 return ret;
2593
2594 return wpas_select_network_from_last_scan(wpa_s, 1, own_request,
2595 trigger_6ghz_scan, data);
2596
2597 scan_work_done:
2598 wpa_scan_results_free(scan_res);
2599 if (own_request && wpa_s->scan_work) {
2600 struct wpa_radio_work *work = wpa_s->scan_work;
2601 wpa_s->scan_work = NULL;
2602 radio_work_done(work);
2603 }
2604 return ret;
2605 }
2606
2607
wpas_trigger_6ghz_scan(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2608 static int wpas_trigger_6ghz_scan(struct wpa_supplicant *wpa_s,
2609 union wpa_event_data *data)
2610 {
2611 struct wpa_driver_scan_params params;
2612 unsigned int j;
2613
2614 wpa_dbg(wpa_s, MSG_INFO, "Triggering 6GHz-only scan");
2615 os_memset(¶ms, 0, sizeof(params));
2616 params.non_coloc_6ghz = wpa_s->last_scan_non_coloc_6ghz;
2617 for (j = 0; j < data->scan_info.num_ssids; j++)
2618 params.ssids[j] = data->scan_info.ssids[j];
2619 params.num_ssids = data->scan_info.num_ssids;
2620 wpa_add_scan_freqs_list(wpa_s, HOSTAPD_MODE_IEEE80211A, ¶ms,
2621 true, !wpa_s->last_scan_non_coloc_6ghz, false);
2622 if (!wpa_supplicant_trigger_scan(wpa_s, ¶ms, true, true)) {
2623 os_free(params.freqs);
2624 return 1;
2625 }
2626 wpa_dbg(wpa_s, MSG_INFO, "Failed to trigger 6GHz-only scan");
2627 os_free(params.freqs);
2628 return 0;
2629 }
2630
2631
2632 /**
2633 * Select a network from the last scan
2634 * @wpa_s: Pointer to wpa_supplicant data
2635 * @new_scan: Whether this function was called right after a scan has finished
2636 * @own_request: Whether the scan was requested by this interface
2637 * @trigger_6ghz_scan: Whether to trigger a 6ghz-only scan when applicable
2638 * @data: Scan data from scan that finished if applicable
2639 *
2640 * See _wpa_supplicant_event_scan_results() for return values.
2641 */
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)2642 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
2643 int new_scan, int own_request,
2644 bool trigger_6ghz_scan,
2645 union wpa_event_data *data)
2646 {
2647 struct wpa_bss *selected;
2648 struct wpa_ssid *ssid = NULL;
2649 int time_to_reenable = wpas_reenabled_network_time(wpa_s);
2650
2651 if (time_to_reenable > 0) {
2652 wpa_dbg(wpa_s, MSG_DEBUG,
2653 "Postpone network selection by %d seconds since all networks are disabled",
2654 time_to_reenable);
2655 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2656 eloop_register_timeout(time_to_reenable, 0,
2657 wpas_network_reenabled, wpa_s, NULL);
2658 return 0;
2659 }
2660
2661 if (wpa_s->p2p_mgmt)
2662 return 0; /* no normal connection on p2p_mgmt interface */
2663
2664 wpa_s->owe_transition_search = 0;
2665 #ifdef CONFIG_OWE
2666 os_free(wpa_s->owe_trans_scan_freq);
2667 wpa_s->owe_trans_scan_freq = NULL;
2668 #endif /* CONFIG_OWE */
2669 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
2670
2671 #ifdef CONFIG_MESH
2672 if (wpa_s->ifmsh) {
2673 wpa_msg(wpa_s, MSG_INFO,
2674 "Avoiding join because we already joined a mesh group");
2675 return 0;
2676 }
2677 #endif /* CONFIG_MESH */
2678
2679 if (selected) {
2680 int skip;
2681 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
2682 if (skip) {
2683 if (new_scan)
2684 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2685 return 0;
2686 }
2687
2688 wpa_s->suitable_network++;
2689
2690 if (ssid != wpa_s->current_ssid &&
2691 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2692 wpa_s->own_disconnect_req = 1;
2693 wpa_supplicant_deauthenticate(
2694 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2695 }
2696
2697 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
2698 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
2699 return -1;
2700 }
2701 wpa_s->supp_pbc_active = false;
2702
2703 if (new_scan)
2704 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2705 /*
2706 * Do not allow other virtual radios to trigger operations based
2707 * on these scan results since we do not want them to start
2708 * other associations at the same time.
2709 */
2710 return 1;
2711 } else {
2712 wpa_s->no_suitable_network++;
2713 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
2714 ssid = wpa_supplicant_pick_new_network(wpa_s);
2715 if (ssid) {
2716 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
2717 wpa_supplicant_associate(wpa_s, NULL, ssid);
2718 if (new_scan)
2719 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2720 } else if (own_request) {
2721 if (wpa_s->support_6ghz && trigger_6ghz_scan && data &&
2722 wpas_trigger_6ghz_scan(wpa_s, data) < 0)
2723 return 1;
2724
2725 /*
2726 * No SSID found. If SCAN results are as a result of
2727 * own scan request and not due to a scan request on
2728 * another shared interface, try another scan.
2729 */
2730 int timeout_sec = wpa_s->scan_interval;
2731 int timeout_usec = 0;
2732 #ifdef CONFIG_P2P
2733 int res;
2734
2735 res = wpas_p2p_scan_no_go_seen(wpa_s);
2736 if (res == 2)
2737 return 2;
2738 if (res == 1)
2739 return 0;
2740
2741 if (wpas_p2p_retry_limit_exceeded(wpa_s))
2742 return 0;
2743
2744 if (wpa_s->p2p_in_provisioning ||
2745 wpa_s->show_group_started ||
2746 wpa_s->p2p_in_invitation) {
2747 /*
2748 * Use shorter wait during P2P Provisioning
2749 * state and during P2P join-a-group operation
2750 * to speed up group formation.
2751 */
2752 timeout_sec = 0;
2753 timeout_usec = 250000;
2754 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2755 timeout_usec);
2756 return 0;
2757 }
2758 #endif /* CONFIG_P2P */
2759 #ifdef CONFIG_INTERWORKING
2760 if (wpa_s->conf->auto_interworking &&
2761 wpa_s->conf->interworking &&
2762 wpa_s->conf->cred) {
2763 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
2764 "start ANQP fetch since no matching "
2765 "networks found");
2766 wpa_s->network_select = 1;
2767 wpa_s->auto_network_select = 1;
2768 interworking_start_fetch_anqp(wpa_s);
2769 return 1;
2770 }
2771 #endif /* CONFIG_INTERWORKING */
2772 #ifdef CONFIG_WPS
2773 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
2774 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
2775 timeout_sec = 0;
2776 timeout_usec = 500000;
2777 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2778 timeout_usec);
2779 return 0;
2780 }
2781 #endif /* CONFIG_WPS */
2782 #ifdef CONFIG_OWE
2783 if (wpa_s->owe_transition_search) {
2784 wpa_dbg(wpa_s, MSG_DEBUG,
2785 "OWE: Use shorter wait during transition mode search");
2786 timeout_sec = 0;
2787 timeout_usec = 500000;
2788 if (wpa_s->owe_trans_scan_freq) {
2789 os_free(wpa_s->next_scan_freqs);
2790 wpa_s->next_scan_freqs =
2791 wpa_s->owe_trans_scan_freq;
2792 wpa_s->owe_trans_scan_freq = NULL;
2793 timeout_usec = 100000;
2794 }
2795 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2796 timeout_usec);
2797 return 0;
2798 }
2799 #endif /* CONFIG_OWE */
2800 if (wpa_supplicant_req_sched_scan(wpa_s))
2801 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2802 timeout_usec);
2803
2804 wpa_msg_ctrl(wpa_s, MSG_INFO,
2805 WPA_EVENT_NETWORK_NOT_FOUND);
2806 }
2807 }
2808 return 0;
2809 }
2810
2811
wpa_supplicant_event_scan_results(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2812 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
2813 union wpa_event_data *data)
2814 {
2815 struct wpa_supplicant *ifs;
2816 int res;
2817
2818 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1, 0);
2819 if (res == 2) {
2820 /*
2821 * Interface may have been removed, so must not dereference
2822 * wpa_s after this.
2823 */
2824 return 1;
2825 }
2826
2827 if (res < 0) {
2828 /*
2829 * If no scan results could be fetched, then no need to
2830 * notify those interfaces that did not actually request
2831 * this scan. Similarly, if scan results started a new operation on this
2832 * interface, do not notify other interfaces to avoid concurrent
2833 * operations during a connection attempt.
2834 */
2835 return 0;
2836 }
2837
2838 /*
2839 * Check other interfaces to see if they share the same radio. If
2840 * so, they get updated with this same scan info.
2841 */
2842 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
2843 radio_list) {
2844 if (ifs != wpa_s) {
2845 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
2846 "sibling", ifs->ifname);
2847 res = _wpa_supplicant_event_scan_results(ifs, data, 0,
2848 res > 0);
2849 if (res < 0)
2850 return 0;
2851 }
2852 }
2853
2854 return 0;
2855 }
2856
2857 #endif /* CONFIG_NO_SCAN_PROCESSING */
2858
2859
wpa_supplicant_fast_associate(struct wpa_supplicant * wpa_s)2860 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
2861 {
2862 #ifdef CONFIG_NO_SCAN_PROCESSING
2863 return -1;
2864 #else /* CONFIG_NO_SCAN_PROCESSING */
2865 struct os_reltime now;
2866
2867 wpa_s->ignore_post_flush_scan_res = 0;
2868
2869 if (wpa_s->last_scan_res_used == 0)
2870 return -1;
2871
2872 os_get_reltime(&now);
2873 if (os_reltime_expired(&now, &wpa_s->last_scan,
2874 wpa_s->conf->scan_res_valid_for_connect)) {
2875 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
2876 return -1;
2877 } else if (wpa_s->crossed_6ghz_dom) {
2878 wpa_printf(MSG_DEBUG, "Fast associate: Crossed 6 GHz domain");
2879 return -1;
2880 }
2881
2882 return wpas_select_network_from_last_scan(wpa_s, 0, 1, false, NULL);
2883 #endif /* CONFIG_NO_SCAN_PROCESSING */
2884 }
2885
2886
wpa_wps_supplicant_fast_associate(struct wpa_supplicant * wpa_s)2887 int wpa_wps_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
2888 {
2889 #ifdef CONFIG_NO_SCAN_PROCESSING
2890 return -1;
2891 #else /* CONFIG_NO_SCAN_PROCESSING */
2892 return wpas_select_network_from_last_scan(wpa_s, 1, 1, false, NULL);
2893 #endif /* CONFIG_NO_SCAN_PROCESSING */
2894 }
2895
2896
2897 #ifdef CONFIG_WNM
2898
wnm_bss_keep_alive(void * eloop_ctx,void * sock_ctx)2899 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
2900 {
2901 struct wpa_supplicant *wpa_s = eloop_ctx;
2902
2903 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2904 return;
2905
2906 if (!wpa_s->no_keep_alive) {
2907 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
2908 MAC2STR(wpa_s->bssid));
2909 /* TODO: could skip this if normal data traffic has been sent */
2910 /* TODO: Consider using some more appropriate data frame for
2911 * this */
2912 if (wpa_s->l2)
2913 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
2914 (u8 *) "", 0);
2915 }
2916
2917 #ifdef CONFIG_SME
2918 if (wpa_s->sme.bss_max_idle_period) {
2919 unsigned int msec;
2920 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
2921 if (msec > 100)
2922 msec -= 100;
2923 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
2924 wnm_bss_keep_alive, wpa_s, NULL);
2925 }
2926 #endif /* CONFIG_SME */
2927 }
2928
2929
wnm_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)2930 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
2931 const u8 *ies, size_t ies_len)
2932 {
2933 struct ieee802_11_elems elems;
2934
2935 if (ies == NULL)
2936 return;
2937
2938 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
2939 return;
2940
2941 #ifdef CONFIG_SME
2942 if (elems.bss_max_idle_period) {
2943 unsigned int msec;
2944 wpa_s->sme.bss_max_idle_period =
2945 WPA_GET_LE16(elems.bss_max_idle_period);
2946 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
2947 "TU)%s", wpa_s->sme.bss_max_idle_period,
2948 (elems.bss_max_idle_period[2] & 0x01) ?
2949 " (protected keep-live required)" : "");
2950 if (wpa_s->sme.bss_max_idle_period == 0)
2951 wpa_s->sme.bss_max_idle_period = 1;
2952 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
2953 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
2954 /* msec times 1000 */
2955 msec = wpa_s->sme.bss_max_idle_period * 1024;
2956 if (msec > 100)
2957 msec -= 100;
2958 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
2959 wnm_bss_keep_alive, wpa_s,
2960 NULL);
2961 }
2962 } else {
2963 wpa_s->sme.bss_max_idle_period = 0;
2964 }
2965 #endif /* CONFIG_SME */
2966 }
2967
2968 #endif /* CONFIG_WNM */
2969
2970
wnm_bss_keep_alive_deinit(struct wpa_supplicant * wpa_s)2971 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
2972 {
2973 #ifdef CONFIG_WNM
2974 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
2975 #endif /* CONFIG_WNM */
2976 }
2977
2978
wpas_qos_map_set(struct wpa_supplicant * wpa_s,const u8 * qos_map,size_t len)2979 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
2980 size_t len)
2981 {
2982 int res;
2983
2984 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
2985 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
2986 if (res) {
2987 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
2988 }
2989
2990 return res;
2991 }
2992
2993
interworking_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)2994 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
2995 const u8 *ies, size_t ies_len)
2996 {
2997 struct ieee802_11_elems elems;
2998
2999 if (ies == NULL)
3000 return;
3001
3002 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
3003 return;
3004
3005 if (elems.qos_map_set) {
3006 wpas_qos_map_set(wpa_s, elems.qos_map_set,
3007 elems.qos_map_set_len);
3008 }
3009 }
3010
3011
wpa_supplicant_set_4addr_mode(struct wpa_supplicant * wpa_s)3012 static void wpa_supplicant_set_4addr_mode(struct wpa_supplicant *wpa_s)
3013 {
3014 if (wpa_s->enabled_4addr_mode) {
3015 wpa_printf(MSG_DEBUG, "4addr mode already set");
3016 return;
3017 }
3018
3019 if (wpa_drv_set_4addr_mode(wpa_s, 1) < 0) {
3020 wpa_msg(wpa_s, MSG_ERROR, "Failed to set 4addr mode");
3021 goto fail;
3022 }
3023 wpa_s->enabled_4addr_mode = 1;
3024 wpa_msg(wpa_s, MSG_INFO, "Successfully set 4addr mode");
3025 return;
3026
3027 fail:
3028 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3029 }
3030
3031
multi_ap_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)3032 static void multi_ap_process_assoc_resp(struct wpa_supplicant *wpa_s,
3033 const u8 *ies, size_t ies_len)
3034 {
3035 struct ieee802_11_elems elems;
3036 struct multi_ap_params multi_ap;
3037 u16 status;
3038
3039 wpa_s->multi_ap_ie = 0;
3040
3041 if (!ies ||
3042 ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed ||
3043 !elems.multi_ap)
3044 return;
3045
3046 status = check_multi_ap_ie(elems.multi_ap + 4, elems.multi_ap_len - 4,
3047 &multi_ap);
3048 if (status != WLAN_STATUS_SUCCESS)
3049 return;
3050
3051 wpa_s->multi_ap_backhaul = !!(multi_ap.capability &
3052 MULTI_AP_BACKHAUL_BSS);
3053 wpa_s->multi_ap_fronthaul = !!(multi_ap.capability &
3054 MULTI_AP_FRONTHAUL_BSS);
3055 wpa_s->multi_ap_ie = 1;
3056 }
3057
3058
multi_ap_set_4addr_mode(struct wpa_supplicant * wpa_s)3059 static void multi_ap_set_4addr_mode(struct wpa_supplicant *wpa_s)
3060 {
3061 if (!wpa_s->current_ssid ||
3062 !wpa_s->current_ssid->multi_ap_backhaul_sta)
3063 return;
3064
3065 if (!wpa_s->multi_ap_ie) {
3066 wpa_printf(MSG_INFO,
3067 "AP does not include valid Multi-AP element");
3068 goto fail;
3069 }
3070
3071 if (!wpa_s->multi_ap_backhaul) {
3072 if (wpa_s->multi_ap_fronthaul &&
3073 wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
3074 wpa_printf(MSG_INFO,
3075 "WPS active, accepting fronthaul-only BSS");
3076 /* Don't set 4addr mode in this case, so just return */
3077 return;
3078 }
3079 wpa_printf(MSG_INFO, "AP doesn't support backhaul BSS");
3080 goto fail;
3081 }
3082
3083 wpa_supplicant_set_4addr_mode(wpa_s);
3084 return;
3085
3086 fail:
3087 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3088 }
3089
3090
3091 #ifdef CONFIG_FST
wpas_fst_update_mbie(struct wpa_supplicant * wpa_s,const u8 * ie,size_t ie_len)3092 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
3093 const u8 *ie, size_t ie_len)
3094 {
3095 struct mb_ies_info mb_ies;
3096
3097 if (!ie || !ie_len || !wpa_s->fst)
3098 return -ENOENT;
3099
3100 os_memset(&mb_ies, 0, sizeof(mb_ies));
3101
3102 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
3103 size_t len;
3104
3105 len = 2 + ie[1];
3106 if (len > ie_len) {
3107 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
3108 ie, ie_len);
3109 break;
3110 }
3111
3112 if (ie[0] == WLAN_EID_MULTI_BAND) {
3113 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
3114 (unsigned int) len);
3115 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
3116 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
3117 mb_ies.nof_ies++;
3118 }
3119
3120 ie_len -= len;
3121 ie += len;
3122 }
3123
3124 if (mb_ies.nof_ies > 0) {
3125 wpabuf_free(wpa_s->received_mb_ies);
3126 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
3127 return 0;
3128 }
3129
3130 return -ENOENT;
3131 }
3132 #endif /* CONFIG_FST */
3133
3134
wpa_supplicant_use_own_rsne_params(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3135 static int wpa_supplicant_use_own_rsne_params(struct wpa_supplicant *wpa_s,
3136 union wpa_event_data *data)
3137 {
3138 int sel;
3139 const u8 *p;
3140 int l, len;
3141 bool found = false;
3142 struct wpa_ie_data ie;
3143 struct wpa_ssid *ssid = wpa_s->current_ssid;
3144 struct wpa_bss *bss = wpa_s->current_bss;
3145 int pmf;
3146
3147 if (!ssid)
3148 return 0;
3149
3150 p = data->assoc_info.req_ies;
3151 l = data->assoc_info.req_ies_len;
3152
3153 while (p && l >= 2) {
3154 len = p[1] + 2;
3155 if (len > l) {
3156 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
3157 p, l);
3158 break;
3159 }
3160 if (((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
3161 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
3162 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
3163 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
3164 (p[0] == WLAN_EID_RSN && p[1] >= 2))) {
3165 found = true;
3166 break;
3167 }
3168 l -= len;
3169 p += len;
3170 }
3171
3172 if (!found || wpa_parse_wpa_ie(p, len, &ie) < 0) {
3173 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_OCV, 0);
3174 return 0;
3175 }
3176
3177 wpa_hexdump(MSG_DEBUG,
3178 "WPA: Update cipher suite selection based on IEs in driver-generated WPA/RSNE in AssocReq",
3179 p, l);
3180
3181 /* Update proto from (Re)Association Request frame info */
3182 wpa_s->wpa_proto = ie.proto;
3183 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, wpa_s->wpa_proto);
3184 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED,
3185 !!(wpa_s->wpa_proto &
3186 (WPA_PROTO_RSN | WPA_PROTO_OSEN)));
3187
3188 /* Update AKMP suite from (Re)Association Request frame info */
3189 sel = ie.key_mgmt;
3190 if (ssid->key_mgmt)
3191 sel &= ssid->key_mgmt;
3192
3193 wpa_dbg(wpa_s, MSG_DEBUG,
3194 "WPA: AP key_mgmt 0x%x network key_mgmt 0x%x; available key_mgmt 0x%x",
3195 ie.key_mgmt, ssid->key_mgmt, sel);
3196 if (ie.key_mgmt && !sel) {
3197 wpa_supplicant_deauthenticate(
3198 wpa_s, WLAN_REASON_AKMP_NOT_VALID);
3199 return -1;
3200 }
3201
3202 #ifdef CONFIG_OCV
3203 if (((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) ||
3204 (wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_OCV)) && ssid->ocv)
3205 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_OCV,
3206 !!(ie.capabilities & WPA_CAPABILITY_OCVC));
3207 #endif /* CONFIG_OCV */
3208
3209 /*
3210 * Update PMK in wpa_sm and the driver if roamed to WPA/WPA2 PSK from a
3211 * different AKM.
3212 */
3213 if (wpa_s->key_mgmt != ie.key_mgmt &&
3214 wpa_key_mgmt_wpa_psk_no_sae(ie.key_mgmt)) {
3215 if (!ssid->psk_set) {
3216 wpa_dbg(wpa_s, MSG_INFO,
3217 "No PSK available for association");
3218 wpas_auth_failed(wpa_s, "NO_PSK_AVAILABLE", NULL);
3219 return -1;
3220 }
3221
3222 wpa_sm_set_pmk(wpa_s->wpa, ssid->psk, PMK_LEN, NULL, NULL);
3223 if (wpa_s->conf->key_mgmt_offload &&
3224 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_KEY_MGMT_OFFLOAD) &&
3225 wpa_drv_set_key(wpa_s, -1, 0, NULL, 0, 0, NULL, 0,
3226 ssid->psk, PMK_LEN, KEY_FLAG_PMK))
3227 wpa_dbg(wpa_s, MSG_ERROR,
3228 "WPA: Cannot set PMK for key management offload");
3229 }
3230
3231 wpa_s->key_mgmt = ie.key_mgmt;
3232 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
3233 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT %s and proto %d",
3234 wpa_key_mgmt_txt(wpa_s->key_mgmt, wpa_s->wpa_proto),
3235 wpa_s->wpa_proto);
3236
3237 /* Update pairwise cipher from (Re)Association Request frame info */
3238 sel = ie.pairwise_cipher;
3239 if (ssid->pairwise_cipher)
3240 sel &= ssid->pairwise_cipher;
3241
3242 wpa_dbg(wpa_s, MSG_DEBUG,
3243 "WPA: AP pairwise cipher 0x%x network pairwise cipher 0x%x; available pairwise cipher 0x%x",
3244 ie.pairwise_cipher, ssid->pairwise_cipher, sel);
3245 if (ie.pairwise_cipher && !sel) {
3246 wpa_supplicant_deauthenticate(
3247 wpa_s, WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID);
3248 return -1;
3249 }
3250
3251 wpa_s->pairwise_cipher = ie.pairwise_cipher;
3252 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
3253 wpa_s->pairwise_cipher);
3254 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK %s",
3255 wpa_cipher_txt(wpa_s->pairwise_cipher));
3256
3257 /* Update other parameters based on AP's WPA IE/RSNE, if available */
3258 if (!bss) {
3259 wpa_dbg(wpa_s, MSG_DEBUG,
3260 "WPA: current_bss == NULL - skip AP IE check");
3261 return 0;
3262 }
3263
3264 /* Update GTK and IGTK from AP's RSNE */
3265 found = false;
3266
3267 if (wpa_s->wpa_proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)) {
3268 const u8 *bss_rsn;
3269
3270 bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
3271 if (bss_rsn) {
3272 p = bss_rsn;
3273 len = 2 + bss_rsn[1];
3274 found = true;
3275 }
3276 } else if (wpa_s->wpa_proto & WPA_PROTO_WPA) {
3277 const u8 *bss_wpa;
3278
3279 bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
3280 if (bss_wpa) {
3281 p = bss_wpa;
3282 len = 2 + bss_wpa[1];
3283 found = true;
3284 }
3285 }
3286
3287 if (!found || wpa_parse_wpa_ie(p, len, &ie) < 0)
3288 return 0;
3289
3290 pmf = wpas_get_ssid_pmf(wpa_s, ssid);
3291 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
3292 pmf == MGMT_FRAME_PROTECTION_REQUIRED) {
3293 /* AP does not support MFP, local configuration requires it */
3294 wpa_supplicant_deauthenticate(
3295 wpa_s, WLAN_REASON_INVALID_RSN_IE_CAPAB);
3296 return -1;
3297 }
3298 if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
3299 pmf == NO_MGMT_FRAME_PROTECTION) {
3300 /* AP requires MFP, local configuration disables it */
3301 wpa_supplicant_deauthenticate(
3302 wpa_s, WLAN_REASON_INVALID_RSN_IE_CAPAB);
3303 return -1;
3304 }
3305
3306 /* Update PMF from local configuration now that MFP validation was done
3307 * above */
3308 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, pmf);
3309
3310 /* Update GTK from AP's RSNE */
3311 sel = ie.group_cipher;
3312 if (ssid->group_cipher)
3313 sel &= ssid->group_cipher;
3314
3315 wpa_dbg(wpa_s, MSG_DEBUG,
3316 "WPA: AP group cipher 0x%x network group cipher 0x%x; available group cipher 0x%x",
3317 ie.group_cipher, ssid->group_cipher, sel);
3318 if (ie.group_cipher && !sel) {
3319 wpa_supplicant_deauthenticate(
3320 wpa_s, WLAN_REASON_GROUP_CIPHER_NOT_VALID);
3321 return -1;
3322 }
3323
3324 wpa_s->group_cipher = ie.group_cipher;
3325 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
3326 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK %s",
3327 wpa_cipher_txt(wpa_s->group_cipher));
3328
3329 /* Update IGTK from AP RSN IE */
3330 sel = ie.mgmt_group_cipher;
3331 if (ssid->group_mgmt_cipher)
3332 sel &= ssid->group_mgmt_cipher;
3333
3334 wpa_dbg(wpa_s, MSG_DEBUG,
3335 "WPA: AP mgmt_group_cipher 0x%x network mgmt_group_cipher 0x%x; available mgmt_group_cipher 0x%x",
3336 ie.mgmt_group_cipher, ssid->group_mgmt_cipher, sel);
3337
3338 if (pmf == NO_MGMT_FRAME_PROTECTION ||
3339 !(ie.capabilities & WPA_CAPABILITY_MFPC)) {
3340 wpa_dbg(wpa_s, MSG_DEBUG,
3341 "WPA: STA/AP is not MFP capable; AP RSNE caps 0x%x",
3342 ie.capabilities);
3343 ie.mgmt_group_cipher = 0;
3344 }
3345
3346 if (ie.mgmt_group_cipher && !sel) {
3347 wpa_supplicant_deauthenticate(
3348 wpa_s, WLAN_REASON_CIPHER_SUITE_REJECTED);
3349 return -1;
3350 }
3351
3352 wpa_s->mgmt_group_cipher = ie.mgmt_group_cipher;
3353 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
3354 wpa_s->mgmt_group_cipher);
3355 if (wpa_s->mgmt_group_cipher)
3356 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher %s",
3357 wpa_cipher_txt(wpa_s->mgmt_group_cipher));
3358 else
3359 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher");
3360
3361 return 0;
3362 }
3363
3364
wpa_supplicant_event_associnfo(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3365 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
3366 union wpa_event_data *data)
3367 {
3368 int l, len, found = 0, found_x = 0, wpa_found, rsn_found;
3369 const u8 *p;
3370 u8 bssid[ETH_ALEN];
3371 bool bssid_known;
3372
3373 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
3374 wpa_s->ssid_verified = false;
3375 wpa_s->bigtk_set = false;
3376 #ifdef CONFIG_SAE
3377 #ifdef CONFIG_SME
3378 /* SAE H2E binds the SSID into PT and that verifies the SSID
3379 * implicitly. */
3380 if (wpa_s->sme.sae.state == SAE_ACCEPTED && wpa_s->sme.sae.h2e)
3381 wpa_s->ssid_verified = true;
3382 #endif /* CONFIG_SME */
3383 #endif /* CONFIG_SAE */
3384 bssid_known = wpa_drv_get_bssid(wpa_s, bssid) == 0;
3385 if (data->assoc_info.req_ies)
3386 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
3387 data->assoc_info.req_ies_len);
3388 if (data->assoc_info.resp_ies) {
3389 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
3390 data->assoc_info.resp_ies_len);
3391 #ifdef CONFIG_TDLS
3392 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
3393 data->assoc_info.resp_ies_len);
3394 #endif /* CONFIG_TDLS */
3395 #ifdef CONFIG_WNM
3396 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
3397 data->assoc_info.resp_ies_len);
3398 #endif /* CONFIG_WNM */
3399 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
3400 data->assoc_info.resp_ies_len);
3401 if (wpa_s->hw_capab == CAPAB_VHT &&
3402 get_ie(data->assoc_info.resp_ies,
3403 data->assoc_info.resp_ies_len, WLAN_EID_VHT_CAP))
3404 wpa_s->ieee80211ac = 1;
3405
3406 multi_ap_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
3407 data->assoc_info.resp_ies_len);
3408 }
3409 if (data->assoc_info.beacon_ies)
3410 wpa_hexdump(MSG_DEBUG, "beacon_ies",
3411 data->assoc_info.beacon_ies,
3412 data->assoc_info.beacon_ies_len);
3413 if (data->assoc_info.freq)
3414 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
3415 data->assoc_info.freq);
3416
3417 wpa_s->connection_set = 0;
3418 if (data->assoc_info.req_ies && data->assoc_info.resp_ies) {
3419 struct ieee802_11_elems req_elems, resp_elems;
3420
3421 if (ieee802_11_parse_elems(data->assoc_info.req_ies,
3422 data->assoc_info.req_ies_len,
3423 &req_elems, 0) != ParseFailed &&
3424 ieee802_11_parse_elems(data->assoc_info.resp_ies,
3425 data->assoc_info.resp_ies_len,
3426 &resp_elems, 0) != ParseFailed) {
3427 wpa_s->connection_set = 1;
3428 wpa_s->connection_ht = req_elems.ht_capabilities &&
3429 resp_elems.ht_capabilities;
3430 /* Do not include subset of VHT on 2.4 GHz vendor
3431 * extension in consideration for reporting VHT
3432 * association. */
3433 wpa_s->connection_vht = req_elems.vht_capabilities &&
3434 resp_elems.vht_capabilities &&
3435 (!data->assoc_info.freq ||
3436 wpas_freq_to_band(data->assoc_info.freq) !=
3437 BAND_2_4_GHZ);
3438 wpa_s->connection_he = req_elems.he_capabilities &&
3439 resp_elems.he_capabilities;
3440 wpa_s->connection_eht = req_elems.eht_capabilities &&
3441 resp_elems.eht_capabilities;
3442 if (req_elems.rrm_enabled)
3443 wpa_s->rrm.rrm_used = 1;
3444 }
3445 }
3446
3447 p = data->assoc_info.req_ies;
3448 l = data->assoc_info.req_ies_len;
3449
3450 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
3451 while (p && l >= 2) {
3452 len = p[1] + 2;
3453 if (len > l) {
3454 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
3455 p, l);
3456 break;
3457 }
3458 if (!found &&
3459 ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
3460 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
3461 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
3462 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
3463 (p[0] == WLAN_EID_RSN && p[1] >= 2))) {
3464 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
3465 break;
3466 found = 1;
3467 wpa_find_assoc_pmkid(wpa_s,
3468 data->assoc_info.authorized);
3469 }
3470 if (!found_x && p[0] == WLAN_EID_RSNX) {
3471 if (wpa_sm_set_assoc_rsnxe(wpa_s->wpa, p, len))
3472 break;
3473 found_x = 1;
3474 }
3475 l -= len;
3476 p += len;
3477 }
3478 if (!found && data->assoc_info.req_ies)
3479 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
3480 if (!found_x && data->assoc_info.req_ies)
3481 wpa_sm_set_assoc_rsnxe(wpa_s->wpa, NULL, 0);
3482
3483 #ifdef CONFIG_FILS
3484 #ifdef CONFIG_SME
3485 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS ||
3486 wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS_SK_PFS) {
3487 if (!data->assoc_info.resp_frame ||
3488 fils_process_assoc_resp(wpa_s->wpa,
3489 data->assoc_info.resp_frame,
3490 data->assoc_info.resp_frame_len) <
3491 0) {
3492 wpa_supplicant_deauthenticate(wpa_s,
3493 WLAN_REASON_UNSPECIFIED);
3494 return -1;
3495 }
3496
3497 /* FILS use of an AEAD cipher include the SSID element in
3498 * (Re)Association Request frame in the AAD and since the AP
3499 * accepted that, the SSID was verified. */
3500 wpa_s->ssid_verified = true;
3501 }
3502 #endif /* CONFIG_SME */
3503
3504 /* Additional processing for FILS when SME is in driver */
3505 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS &&
3506 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
3507 wpa_sm_set_reset_fils_completed(wpa_s->wpa, 1);
3508 #endif /* CONFIG_FILS */
3509
3510 #ifdef CONFIG_OWE
3511 if (wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
3512 !(wpa_s->drv_flags2 & WPA_DRIVER_FLAGS2_OWE_OFFLOAD_STA) &&
3513 (!bssid_known ||
3514 owe_process_assoc_resp(wpa_s->wpa,
3515 wpa_s->valid_links ?
3516 wpa_s->ap_mld_addr : bssid,
3517 data->assoc_info.resp_ies,
3518 data->assoc_info.resp_ies_len) < 0)) {
3519 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
3520 return -1;
3521 }
3522 #endif /* CONFIG_OWE */
3523
3524 #ifdef CONFIG_DPP2
3525 wpa_sm_set_dpp_z(wpa_s->wpa, NULL);
3526 if (DPP_VERSION > 1 && wpa_s->key_mgmt == WPA_KEY_MGMT_DPP &&
3527 wpa_s->dpp_pfs) {
3528 struct ieee802_11_elems elems;
3529
3530 if (ieee802_11_parse_elems(data->assoc_info.resp_ies,
3531 data->assoc_info.resp_ies_len,
3532 &elems, 0) == ParseFailed ||
3533 !elems.owe_dh)
3534 goto no_pfs;
3535 if (dpp_pfs_process(wpa_s->dpp_pfs, elems.owe_dh,
3536 elems.owe_dh_len) < 0) {
3537 wpa_supplicant_deauthenticate(wpa_s,
3538 WLAN_REASON_UNSPECIFIED);
3539 return -1;
3540 }
3541
3542 wpa_sm_set_dpp_z(wpa_s->wpa, wpa_s->dpp_pfs->secret);
3543 }
3544 no_pfs:
3545 #endif /* CONFIG_DPP2 */
3546
3547 #ifdef CONFIG_IEEE80211R
3548 #ifdef CONFIG_SME
3549 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
3550 if (!bssid_known ||
3551 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
3552 data->assoc_info.resp_ies,
3553 data->assoc_info.resp_ies_len,
3554 bssid) < 0) {
3555 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
3556 "Reassociation Response failed");
3557 wpa_supplicant_deauthenticate(
3558 wpa_s, WLAN_REASON_INVALID_IE);
3559 return -1;
3560 }
3561 /* SSID is included in PMK-R0 derivation, so it is verified
3562 * implicitly. */
3563 wpa_s->ssid_verified = true;
3564 }
3565
3566 p = data->assoc_info.resp_ies;
3567 l = data->assoc_info.resp_ies_len;
3568
3569 #ifdef CONFIG_WPS_STRICT
3570 if (p && wpa_s->current_ssid &&
3571 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
3572 struct wpabuf *wps;
3573 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
3574 if (wps == NULL) {
3575 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
3576 "include WPS IE in (Re)Association Response");
3577 return -1;
3578 }
3579
3580 if (wps_validate_assoc_resp(wps) < 0) {
3581 wpabuf_free(wps);
3582 wpa_supplicant_deauthenticate(
3583 wpa_s, WLAN_REASON_INVALID_IE);
3584 return -1;
3585 }
3586 wpabuf_free(wps);
3587 }
3588 #endif /* CONFIG_WPS_STRICT */
3589
3590 /* Go through the IEs and make a copy of the MDIE, if present. */
3591 while (p && l >= 2) {
3592 len = p[1] + 2;
3593 if (len > l) {
3594 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
3595 p, l);
3596 break;
3597 }
3598 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
3599 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
3600 wpa_s->sme.ft_used = 1;
3601 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
3602 MOBILITY_DOMAIN_ID_LEN);
3603 break;
3604 }
3605 l -= len;
3606 p += len;
3607 }
3608 #endif /* CONFIG_SME */
3609
3610 /* Process FT when SME is in the driver */
3611 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
3612 wpa_ft_is_completed(wpa_s->wpa)) {
3613 if (!bssid_known ||
3614 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
3615 data->assoc_info.resp_ies,
3616 data->assoc_info.resp_ies_len,
3617 bssid) < 0) {
3618 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
3619 "Reassociation Response failed");
3620 wpa_supplicant_deauthenticate(
3621 wpa_s, WLAN_REASON_INVALID_IE);
3622 return -1;
3623 }
3624 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
3625 /* SSID is included in PMK-R0 derivation, so it is verified
3626 * implicitly. */
3627 wpa_s->ssid_verified = true;
3628 }
3629
3630 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
3631 data->assoc_info.resp_ies_len);
3632 #endif /* CONFIG_IEEE80211R */
3633
3634 #ifndef CONFIG_NO_ROBUST_AV
3635 if (bssid_known)
3636 wpas_handle_assoc_resp_mscs(wpa_s, bssid,
3637 data->assoc_info.resp_ies,
3638 data->assoc_info.resp_ies_len);
3639 #endif /* CONFIG_NO_ROBUST_AV */
3640
3641 /* WPA/RSN IE from Beacon/ProbeResp */
3642 p = data->assoc_info.beacon_ies;
3643 l = data->assoc_info.beacon_ies_len;
3644
3645 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
3646 */
3647 wpa_found = rsn_found = 0;
3648 while (p && l >= 2) {
3649 len = p[1] + 2;
3650 if (len > l) {
3651 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
3652 p, l);
3653 break;
3654 }
3655 if (!wpa_found &&
3656 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
3657 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
3658 wpa_found = 1;
3659 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
3660 }
3661
3662 if (!rsn_found &&
3663 p[0] == WLAN_EID_RSN && p[1] >= 2) {
3664 rsn_found = 1;
3665 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
3666 }
3667
3668 if (p[0] == WLAN_EID_RSNX && p[1] >= 1)
3669 wpa_sm_set_ap_rsnxe(wpa_s->wpa, p, len);
3670
3671 l -= len;
3672 p += len;
3673 }
3674
3675 if (!wpa_found && data->assoc_info.beacon_ies)
3676 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
3677 if (!rsn_found && data->assoc_info.beacon_ies) {
3678 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
3679 wpa_sm_set_ap_rsnxe(wpa_s->wpa, NULL, 0);
3680 }
3681 if (wpa_found || rsn_found)
3682 wpa_s->ap_ies_from_associnfo = 1;
3683
3684 if (wpa_s->assoc_freq && data->assoc_info.freq) {
3685 struct wpa_bss *bss;
3686 unsigned int freq = 0;
3687
3688 if (bssid_known) {
3689 bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
3690 if (bss)
3691 freq = bss->freq;
3692 }
3693 if (freq != data->assoc_info.freq) {
3694 wpa_printf(MSG_DEBUG,
3695 "Operating frequency changed from %u to %u MHz",
3696 wpa_s->assoc_freq, data->assoc_info.freq);
3697 wpa_supplicant_update_scan_results(wpa_s, bssid);
3698 }
3699 }
3700
3701 wpa_s->assoc_freq = data->assoc_info.freq;
3702
3703 #ifndef CONFIG_NO_ROBUST_AV
3704 wpas_handle_assoc_resp_qos_mgmt(wpa_s, data->assoc_info.resp_ies,
3705 data->assoc_info.resp_ies_len);
3706 #endif /* CONFIG_NO_ROBUST_AV */
3707
3708 return 0;
3709 }
3710
3711
wpa_supplicant_assoc_update_ie(struct wpa_supplicant * wpa_s)3712 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
3713 {
3714 const u8 *bss_wpa = NULL, *bss_rsn = NULL, *bss_rsnx = NULL;
3715
3716 if (!wpa_s->current_bss || !wpa_s->current_ssid)
3717 return -1;
3718
3719 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
3720 return 0;
3721
3722 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
3723 WPA_IE_VENDOR_TYPE);
3724 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
3725 bss_rsnx = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSNX);
3726
3727 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
3728 bss_wpa ? 2 + bss_wpa[1] : 0) ||
3729 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
3730 bss_rsn ? 2 + bss_rsn[1] : 0) ||
3731 wpa_sm_set_ap_rsnxe(wpa_s->wpa, bss_rsnx,
3732 bss_rsnx ? 2 + bss_rsnx[1] : 0))
3733 return -1;
3734
3735 return 0;
3736 }
3737
3738
wpas_fst_update_mb_assoc(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3739 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
3740 union wpa_event_data *data)
3741 {
3742 #ifdef CONFIG_FST
3743 struct assoc_info *ai = data ? &data->assoc_info : NULL;
3744 struct wpa_bss *bss = wpa_s->current_bss;
3745 const u8 *ieprb, *iebcn;
3746
3747 wpabuf_free(wpa_s->received_mb_ies);
3748 wpa_s->received_mb_ies = NULL;
3749
3750 if (ai &&
3751 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
3752 wpa_printf(MSG_DEBUG,
3753 "FST: MB IEs updated from Association Response frame");
3754 return;
3755 }
3756
3757 if (ai &&
3758 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
3759 wpa_printf(MSG_DEBUG,
3760 "FST: MB IEs updated from association event Beacon IEs");
3761 return;
3762 }
3763
3764 if (!bss)
3765 return;
3766
3767 ieprb = wpa_bss_ie_ptr(bss);
3768 iebcn = ieprb + bss->ie_len;
3769
3770 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
3771 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
3772 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
3773 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
3774 #endif /* CONFIG_FST */
3775 }
3776
3777
wpas_ml_parse_assoc(struct wpa_supplicant * wpa_s,struct ieee802_11_elems * elems,struct ml_sta_link_info * ml_info)3778 static unsigned int wpas_ml_parse_assoc(struct wpa_supplicant *wpa_s,
3779 struct ieee802_11_elems *elems,
3780 struct ml_sta_link_info *ml_info)
3781 {
3782 struct wpabuf *mlbuf;
3783 struct ieee80211_eht_ml *ml;
3784 size_t ml_len;
3785 struct eht_ml_basic_common_info *common_info;
3786 const u8 *pos;
3787 u16 eml_capa = 0, mld_capa = 0;
3788 const u16 control =
3789 host_to_le16(MULTI_LINK_CONTROL_TYPE_BASIC |
3790 BASIC_MULTI_LINK_CTRL_PRES_LINK_ID |
3791 BASIC_MULTI_LINK_CTRL_PRES_BSS_PARAM_CH_COUNT);
3792 u8 expected_common_info_len = 9;
3793 unsigned int i = 0;
3794 u16 ml_control;
3795
3796 if (!wpa_s->valid_links || !elems->basic_mle || !elems->basic_mle_len)
3797 return 0;
3798
3799 mlbuf = ieee802_11_defrag(elems->basic_mle, elems->basic_mle_len, true);
3800 if (!mlbuf)
3801 return 0;
3802
3803 ml = (struct ieee80211_eht_ml *) wpabuf_head(mlbuf);
3804 ml_len = wpabuf_len(mlbuf);
3805 if (ml_len < sizeof(*ml))
3806 goto out;
3807
3808 os_memset(ml_info, 0, sizeof(*ml_info) * MAX_NUM_MLD_LINKS);
3809
3810 ml_control = le_to_host16(ml->ml_control);
3811
3812 if ((ml_control & control) != control) {
3813 wpa_printf(MSG_DEBUG, "MLD: Invalid presence BM=0x%x",
3814 ml_control);
3815 goto out;
3816 }
3817
3818 if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_EML_CAPA) {
3819 wpa_printf(MSG_DEBUG, "MLD: EML capabilities included");
3820 expected_common_info_len += 2;
3821 }
3822
3823 if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_MLD_CAPA) {
3824 wpa_printf(MSG_DEBUG, "MLD: MLD capabilities included");
3825 expected_common_info_len += 2;
3826 }
3827
3828 if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_MSD_INFO) {
3829 wpa_printf(MSG_DEBUG,
3830 "MLD: Unexpected: medium sync delay info present");
3831 expected_common_info_len += 2;
3832 }
3833
3834 if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_AP_MLD_ID) {
3835 wpa_printf(MSG_DEBUG,
3836 "MLD: Unexpected: MLD ID present");
3837 expected_common_info_len++;
3838 }
3839
3840 if (sizeof(*ml) + expected_common_info_len > ml_len) {
3841 wpa_printf(MSG_DEBUG,
3842 "MLD: Not enough bytes for common info. ml_len=%zu",
3843 ml_len);
3844 goto out;
3845 }
3846
3847 common_info = (struct eht_ml_basic_common_info *) ml->variable;
3848 if (common_info->len != expected_common_info_len) {
3849 wpa_printf(MSG_DEBUG,
3850 "MLD: Invalid common info len=%u. expected=%u",
3851 common_info->len, expected_common_info_len);
3852 goto out;
3853 }
3854
3855 wpa_printf(MSG_DEBUG, "MLD: address: " MACSTR,
3856 MAC2STR(common_info->mld_addr));
3857
3858 if (!ether_addr_equal(wpa_s->ap_mld_addr, common_info->mld_addr)) {
3859 wpa_printf(MSG_DEBUG, "MLD: Mismatching MLD address (expected "
3860 MACSTR ")", MAC2STR(wpa_s->ap_mld_addr));
3861 goto out;
3862 }
3863
3864 pos = common_info->variable;
3865
3866 /* Store the information for the association link */
3867 ml_info[i].link_id = *pos;
3868 pos++;
3869
3870 /* Skip the BSS Parameters Change Count */
3871 pos++;
3872
3873 /* Skip the Medium Synchronization Delay Information if present */
3874 if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_MSD_INFO)
3875 pos += 2;
3876
3877 if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_EML_CAPA) {
3878 eml_capa = WPA_GET_LE16(pos);
3879 pos += 2;
3880 }
3881
3882 if (ml_control & BASIC_MULTI_LINK_CTRL_PRES_MLD_CAPA) {
3883 mld_capa = WPA_GET_LE16(pos);
3884 pos += 2;
3885 }
3886
3887 wpa_printf(MSG_DEBUG,
3888 "MLD: link_id=%u, eml=0x%x, mld=0x%x",
3889 ml_info[i].link_id, eml_capa, mld_capa);
3890
3891 i++;
3892
3893 pos = ((u8 *) common_info) + common_info->len;
3894 ml_len -= sizeof(*ml) + common_info->len;
3895 while (ml_len > 2 && i < MAX_NUM_MLD_LINKS) {
3896 u8 sub_elem_len = pos[1];
3897 u8 sta_info_len;
3898 u8 nstr_bitmap_len = 0;
3899 u16 ctrl;
3900 const u8 *end;
3901
3902 wpa_printf(MSG_DEBUG, "MLD: Subelement len=%u", sub_elem_len);
3903
3904 if (sub_elem_len > ml_len - 2) {
3905 wpa_printf(MSG_DEBUG,
3906 "MLD: Invalid link info len: %u > %zu",
3907 2 + sub_elem_len, ml_len);
3908 goto out;
3909 }
3910
3911 switch (*pos) {
3912 case EHT_ML_SUB_ELEM_PER_STA_PROFILE:
3913 break;
3914 case EHT_ML_SUB_ELEM_FRAGMENT:
3915 case EHT_ML_SUB_ELEM_VENDOR:
3916 wpa_printf(MSG_DEBUG,
3917 "MLD: Skip subelement id=%u, len=%u",
3918 *pos, sub_elem_len);
3919 pos += 2 + sub_elem_len;
3920 ml_len -= 2 + sub_elem_len;
3921 continue;
3922 default:
3923 wpa_printf(MSG_DEBUG, "MLD: Unknown subelement ID=%u",
3924 *pos);
3925 goto out;
3926 }
3927
3928 end = pos + 2 + sub_elem_len;
3929
3930 /* Skip the subelement ID and the length */
3931 pos += 2;
3932 ml_len -= 2;
3933
3934 if (end - pos < 2)
3935 goto out;
3936
3937 /* Get the station control field */
3938 ctrl = WPA_GET_LE16(pos);
3939
3940 pos += 2;
3941 ml_len -= 2;
3942
3943 if (!(ctrl & EHT_PER_STA_CTRL_COMPLETE_PROFILE_MSK)) {
3944 wpa_printf(MSG_DEBUG,
3945 "MLD: Per STA complete profile expected");
3946 goto out;
3947 }
3948
3949 if (!(ctrl & EHT_PER_STA_CTRL_MAC_ADDR_PRESENT_MSK)) {
3950 wpa_printf(MSG_DEBUG,
3951 "MLD: Per STA MAC address not present");
3952 goto out;
3953 }
3954
3955 if (!(ctrl & EHT_PER_STA_CTRL_TSF_OFFSET_PRESENT_MSK)) {
3956 wpa_printf(MSG_DEBUG,
3957 "MLD: Per STA TSF offset not present");
3958 goto out;
3959 }
3960
3961 if (!(ctrl & EHT_PER_STA_CTRL_BEACON_INTERVAL_PRESENT_MSK)) {
3962 wpa_printf(MSG_DEBUG,
3963 "MLD: Beacon interval not present");
3964 goto out;
3965 }
3966
3967 if (!(ctrl & EHT_PER_STA_CTRL_DTIM_INFO_PRESENT_MSK)) {
3968 wpa_printf(MSG_DEBUG,
3969 "MLD: DTIM information not present");
3970 goto out;
3971 }
3972
3973 if (ctrl & EHT_PER_STA_CTRL_NSTR_LINK_PAIR_PRESENT_MSK) {
3974 if (ctrl & EHT_PER_STA_CTRL_NSTR_BM_SIZE_MSK)
3975 nstr_bitmap_len = 2;
3976 else
3977 nstr_bitmap_len = 1;
3978 }
3979
3980 if (!(ctrl & EHT_PER_STA_CTRL_BSS_PARAM_CNT_PRESENT_MSK)) {
3981 wpa_printf(MSG_DEBUG,
3982 "MLD: BSS params change count not present");
3983 goto out;
3984 }
3985
3986 sta_info_len = 1 + ETH_ALEN + 8 + 2 + 2 + 1 + nstr_bitmap_len;
3987 if (sta_info_len > ml_len || sta_info_len > end - pos ||
3988 sta_info_len + 2 > sub_elem_len ||
3989 sta_info_len != *pos) {
3990 wpa_printf(MSG_DEBUG,
3991 "MLD: Invalid STA info len=%u, len=%u",
3992 sta_info_len, *pos);
3993 goto out;
3994 }
3995
3996 /* Get the link address */
3997 wpa_printf(MSG_DEBUG,
3998 "MLD: link addr: " MACSTR " nstr BM len=%u",
3999 MAC2STR(pos + 1), nstr_bitmap_len);
4000
4001 ml_info[i].link_id = ctrl & EHT_PER_STA_CTRL_LINK_ID_MSK;
4002 os_memcpy(ml_info[i].bssid, pos + 1, ETH_ALEN);
4003
4004 pos += sta_info_len;
4005 ml_len -= sta_info_len;
4006
4007 wpa_printf(MSG_DEBUG, "MLD: sub_elem_len=%u, sta_info_len=%u",
4008 sub_elem_len, sta_info_len);
4009
4010 sub_elem_len -= sta_info_len + 2;
4011 if (sub_elem_len < 4) {
4012 wpa_printf(MSG_DEBUG, "MLD: Per STA profile too short");
4013 goto out;
4014 }
4015
4016 wpa_hexdump(MSG_MSGDUMP, "MLD: STA profile", pos, sub_elem_len);
4017 ml_info[i].status = WPA_GET_LE16(pos + 2);
4018
4019 pos += sub_elem_len;
4020 ml_len -= sub_elem_len;
4021
4022 i++;
4023 }
4024
4025 wpabuf_free(mlbuf);
4026 return i;
4027 out:
4028 wpabuf_free(mlbuf);
4029 return 0;
4030 }
4031
4032
wpa_drv_get_mlo_info(struct wpa_supplicant * wpa_s)4033 static int wpa_drv_get_mlo_info(struct wpa_supplicant *wpa_s)
4034 {
4035 struct driver_sta_mlo_info mlo;
4036 int i;
4037
4038 os_memset(&mlo, 0, sizeof(mlo));
4039 if (wpas_drv_get_sta_mlo_info(wpa_s, &mlo)) {
4040 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get MLO link info");
4041 wpa_supplicant_deauthenticate(wpa_s,
4042 WLAN_REASON_DEAUTH_LEAVING);
4043 return -1;
4044 }
4045
4046 if (wpa_s->valid_links == mlo.valid_links) {
4047 bool match = true;
4048
4049 if (!mlo.valid_links)
4050 return 0;
4051
4052 for_each_link(mlo.valid_links, i) {
4053 if (!ether_addr_equal(wpa_s->links[i].addr,
4054 mlo.links[i].addr) ||
4055 !ether_addr_equal(wpa_s->links[i].bssid,
4056 mlo.links[i].bssid)) {
4057 match = false;
4058 break;
4059 }
4060 }
4061
4062 if (match && wpa_s->mlo_assoc_link_id == mlo.assoc_link_id &&
4063 ether_addr_equal(wpa_s->ap_mld_addr, mlo.ap_mld_addr))
4064 return 0;
4065 }
4066
4067 wpa_s->valid_links = mlo.valid_links;
4068 wpa_s->mlo_assoc_link_id = mlo.assoc_link_id;
4069 os_memcpy(wpa_s->ap_mld_addr, mlo.ap_mld_addr, ETH_ALEN);
4070 for_each_link(wpa_s->valid_links, i) {
4071 os_memcpy(wpa_s->links[i].addr, mlo.links[i].addr, ETH_ALEN);
4072 os_memcpy(wpa_s->links[i].bssid, mlo.links[i].bssid, ETH_ALEN);
4073 wpa_s->links[i].freq = mlo.links[i].freq;
4074 wpa_supplicant_update_link_bss(wpa_s, i, mlo.links[i].bssid);
4075 }
4076
4077 return 0;
4078 }
4079
4080
wpa_sm_set_ml_info(struct wpa_supplicant * wpa_s)4081 static int wpa_sm_set_ml_info(struct wpa_supplicant *wpa_s)
4082 {
4083 struct driver_sta_mlo_info drv_mlo;
4084 struct wpa_sm_mlo wpa_mlo;
4085 const u8 *bss_rsn = NULL, *bss_rsnx = NULL;
4086 int i;
4087
4088 os_memset(&drv_mlo, 0, sizeof(drv_mlo));
4089 if (wpas_drv_get_sta_mlo_info(wpa_s, &drv_mlo)) {
4090 wpa_dbg(wpa_s, MSG_INFO, "Failed to get MLO link info");
4091 return -1;
4092 }
4093
4094 os_memset(&wpa_mlo, 0, sizeof(wpa_mlo));
4095 if (!drv_mlo.valid_links)
4096 goto out;
4097
4098 os_memcpy(wpa_mlo.ap_mld_addr, drv_mlo.ap_mld_addr, ETH_ALEN);
4099 wpa_mlo.assoc_link_id = drv_mlo.assoc_link_id;
4100 wpa_mlo.valid_links = drv_mlo.valid_links;
4101 wpa_mlo.req_links = drv_mlo.req_links;
4102
4103 for_each_link(drv_mlo.req_links, i) {
4104 struct wpa_bss *bss;
4105
4106 bss = wpa_supplicant_get_new_bss(wpa_s, drv_mlo.links[i].bssid);
4107 if (!bss) {
4108 wpa_dbg(wpa_s, MSG_INFO,
4109 "Failed to get MLO link %d BSS", i);
4110 return -1;
4111 }
4112
4113 bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
4114 bss_rsnx = wpa_bss_get_ie(bss, WLAN_EID_RSNX);
4115
4116 wpa_mlo.links[i].ap_rsne = bss_rsn ? (u8 *) bss_rsn : NULL;
4117 wpa_mlo.links[i].ap_rsne_len = bss_rsn ? 2 + bss_rsn[1] : 0;
4118 wpa_mlo.links[i].ap_rsnxe = bss_rsnx ? (u8 *) bss_rsnx : NULL;
4119 wpa_mlo.links[i].ap_rsnxe_len = bss_rsnx ? 2 + bss_rsnx[1] : 0;
4120
4121 os_memcpy(wpa_mlo.links[i].bssid, drv_mlo.links[i].bssid,
4122 ETH_ALEN);
4123 os_memcpy(wpa_mlo.links[i].addr, drv_mlo.links[i].addr,
4124 ETH_ALEN);
4125 }
4126
4127 out:
4128 return wpa_sm_set_mlo_params(wpa_s->wpa, &wpa_mlo);
4129 }
4130
4131
wpa_supplicant_event_assoc(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4132 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
4133 union wpa_event_data *data)
4134 {
4135 u8 bssid[ETH_ALEN];
4136 int ft_completed, already_authorized;
4137 int new_bss = 0;
4138 #if defined(CONFIG_FILS) || defined(CONFIG_MBO)
4139 struct wpa_bss *bss;
4140 #endif /* CONFIG_FILS || CONFIG_MBO */
4141
4142 #ifdef CONFIG_AP
4143 if (wpa_s->ap_iface) {
4144 if (!data)
4145 return;
4146 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
4147 data->assoc_info.addr,
4148 data->assoc_info.req_ies,
4149 data->assoc_info.req_ies_len, NULL, 0,
4150 NULL, data->assoc_info.reassoc);
4151 return;
4152 }
4153 #endif /* CONFIG_AP */
4154
4155 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
4156 wpa_s->own_reconnect_req = 0;
4157
4158 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
4159
4160 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
4161 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
4162 wpa_supplicant_deauthenticate(
4163 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
4164 return;
4165 }
4166
4167 if (wpa_drv_get_mlo_info(wpa_s) < 0) {
4168 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get MLO connection info");
4169 wpa_supplicant_deauthenticate(wpa_s,
4170 WLAN_REASON_DEAUTH_LEAVING);
4171 return;
4172 }
4173
4174 if (ft_completed &&
4175 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION)) {
4176 wpa_msg(wpa_s, MSG_INFO, "Attempt to roam to " MACSTR,
4177 MAC2STR(bssid));
4178 if (!wpa_supplicant_update_current_bss(wpa_s, bssid)) {
4179 wpa_printf(MSG_ERROR,
4180 "Can't find target AP's information!");
4181 return;
4182 }
4183 wpa_supplicant_assoc_update_ie(wpa_s);
4184 }
4185
4186 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
4187 return;
4188 /*
4189 * FILS authentication can share the same mechanism to mark the
4190 * connection fully authenticated, so set ft_completed also based on
4191 * FILS result.
4192 */
4193 if (!ft_completed)
4194 ft_completed = wpa_fils_is_completed(wpa_s->wpa);
4195
4196 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
4197 if (!ether_addr_equal(bssid, wpa_s->bssid)) {
4198 if (os_reltime_initialized(&wpa_s->session_start)) {
4199 os_reltime_age(&wpa_s->session_start,
4200 &wpa_s->session_length);
4201 wpa_s->session_start.sec = 0;
4202 wpa_s->session_start.usec = 0;
4203 wpas_notify_session_length(wpa_s);
4204 } else {
4205 wpas_notify_auth_changed(wpa_s);
4206 os_get_reltime(&wpa_s->session_start);
4207 }
4208 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
4209 MACSTR, MAC2STR(bssid));
4210 new_bss = 1;
4211 random_add_randomness(bssid, ETH_ALEN);
4212 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
4213 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
4214 wpas_notify_bssid_changed(wpa_s);
4215
4216 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
4217 wpa_clear_keys(wpa_s, bssid);
4218 }
4219 if (wpa_supplicant_select_config(wpa_s, data) < 0) {
4220 wpa_supplicant_deauthenticate(
4221 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
4222 return;
4223 }
4224 }
4225
4226 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
4227 data && wpa_supplicant_use_own_rsne_params(wpa_s, data) < 0)
4228 return;
4229
4230 multi_ap_set_4addr_mode(wpa_s);
4231
4232 if (wpa_s->conf->ap_scan == 1 &&
4233 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
4234 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
4235 wpa_msg(wpa_s, MSG_WARNING,
4236 "WPA/RSN IEs not updated");
4237 }
4238
4239 wpas_fst_update_mb_assoc(wpa_s, data);
4240
4241 #ifdef CONFIG_SME
4242 /*
4243 * Cache the current AP's BSSID (for non-MLO connection) or MLD address
4244 * (for MLO connection) as the previous BSSID for subsequent
4245 * reassociation requests handled by SME-in-wpa_supplicant.
4246 */
4247 os_memcpy(wpa_s->sme.prev_bssid,
4248 wpa_s->valid_links ? wpa_s->ap_mld_addr : bssid, ETH_ALEN);
4249 wpa_s->sme.prev_bssid_set = 1;
4250 wpa_s->sme.last_unprot_disconnect.sec = 0;
4251 #endif /* CONFIG_SME */
4252
4253 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
4254 if (wpa_s->current_ssid) {
4255 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
4256 * initialized before association, but for other modes,
4257 * initialize PC/SC here, if the current configuration needs
4258 * smartcard or SIM/USIM. */
4259 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
4260 }
4261 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
4262
4263 if (wpa_sm_set_ml_info(wpa_s)) {
4264 wpa_dbg(wpa_s, MSG_INFO,
4265 "Failed to set MLO connection info to wpa_sm");
4266 wpa_supplicant_deauthenticate(wpa_s,
4267 WLAN_REASON_DEAUTH_LEAVING);
4268 return;
4269 }
4270
4271 if (wpa_s->l2)
4272 l2_packet_notify_auth_start(wpa_s->l2);
4273
4274 already_authorized = data && data->assoc_info.authorized;
4275
4276 /*
4277 * Set portEnabled first to false in order to get EAP state machine out
4278 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
4279 * state machine may transit to AUTHENTICATING state based on obsolete
4280 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
4281 * AUTHENTICATED without ever giving chance to EAP state machine to
4282 * reset the state.
4283 */
4284 if (!ft_completed && !already_authorized) {
4285 eapol_sm_notify_portEnabled(wpa_s->eapol, false);
4286 eapol_sm_notify_portValid(wpa_s->eapol, false);
4287 }
4288 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
4289 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP ||
4290 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE || ft_completed ||
4291 already_authorized || wpa_s->drv_authorized_port)
4292 eapol_sm_notify_eap_success(wpa_s->eapol, false);
4293 /* 802.1X::portControl = Auto */
4294 eapol_sm_notify_portEnabled(wpa_s->eapol, true);
4295 wpa_s->eapol_received = 0;
4296 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
4297 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
4298 (wpa_s->current_ssid &&
4299 wpa_s->current_ssid->mode == WPAS_MODE_IBSS)) {
4300 if (wpa_s->current_ssid &&
4301 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
4302 (wpa_s->drv_flags &
4303 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
4304 /*
4305 * Set the key after having received joined-IBSS event
4306 * from the driver.
4307 */
4308 wpa_supplicant_set_wpa_none_key(wpa_s,
4309 wpa_s->current_ssid);
4310 }
4311 wpa_supplicant_cancel_auth_timeout(wpa_s);
4312 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
4313 } else if (!ft_completed) {
4314 /* Timeout for receiving the first EAPOL packet */
4315 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
4316 }
4317 wpa_supplicant_cancel_scan(wpa_s);
4318
4319 if (ft_completed) {
4320 /*
4321 * FT protocol completed - make sure EAPOL state machine ends
4322 * up in authenticated.
4323 */
4324 wpa_supplicant_cancel_auth_timeout(wpa_s);
4325 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
4326 eapol_sm_notify_portValid(wpa_s->eapol, true);
4327 eapol_sm_notify_eap_success(wpa_s->eapol, true);
4328 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK) &&
4329 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
4330 if (already_authorized) {
4331 /*
4332 * We are done; the driver will take care of RSN 4-way
4333 * handshake.
4334 */
4335 wpa_supplicant_cancel_auth_timeout(wpa_s);
4336 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
4337 eapol_sm_notify_portValid(wpa_s->eapol, true);
4338 eapol_sm_notify_eap_success(wpa_s->eapol, true);
4339 } else {
4340 /* Update port, WPA_COMPLETED state from the
4341 * EVENT_PORT_AUTHORIZED handler when the driver is done
4342 * with the 4-way handshake.
4343 */
4344 wpa_msg(wpa_s, MSG_DEBUG,
4345 "ASSOC INFO: wait for driver port authorized indication");
4346 }
4347 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X) &&
4348 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
4349 /*
4350 * The driver will take care of RSN 4-way handshake, so we need
4351 * to allow EAPOL supplicant to complete its work without
4352 * waiting for WPA supplicant.
4353 */
4354 eapol_sm_notify_portValid(wpa_s->eapol, true);
4355 }
4356
4357 wpa_s->last_eapol_matches_bssid = 0;
4358
4359 #ifdef CONFIG_TESTING_OPTIONS
4360 if (wpa_s->rsne_override_eapol) {
4361 wpa_printf(MSG_DEBUG,
4362 "TESTING: RSNE EAPOL-Key msg 2/4 override");
4363 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa,
4364 wpabuf_head(wpa_s->rsne_override_eapol),
4365 wpabuf_len(wpa_s->rsne_override_eapol));
4366 }
4367 if (wpa_s->rsnxe_override_eapol) {
4368 wpa_printf(MSG_DEBUG,
4369 "TESTING: RSNXE EAPOL-Key msg 2/4 override");
4370 wpa_sm_set_assoc_rsnxe(wpa_s->wpa,
4371 wpabuf_head(wpa_s->rsnxe_override_eapol),
4372 wpabuf_len(wpa_s->rsnxe_override_eapol));
4373 }
4374 #endif /* CONFIG_TESTING_OPTIONS */
4375
4376 if (wpa_s->pending_eapol_rx) {
4377 struct os_reltime now, age;
4378 os_get_reltime(&now);
4379 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
4380 if (age.sec == 0 && age.usec < 200000 &&
4381 ether_addr_equal(wpa_s->pending_eapol_rx_src,
4382 wpa_s->valid_links ? wpa_s->ap_mld_addr :
4383 bssid)) {
4384 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
4385 "frame that was received just before "
4386 "association notification");
4387 wpa_supplicant_rx_eapol(
4388 wpa_s, wpa_s->pending_eapol_rx_src,
4389 wpabuf_head(wpa_s->pending_eapol_rx),
4390 wpabuf_len(wpa_s->pending_eapol_rx),
4391 wpa_s->pending_eapol_encrypted);
4392 }
4393 wpabuf_free(wpa_s->pending_eapol_rx);
4394 wpa_s->pending_eapol_rx = NULL;
4395 }
4396
4397 #ifdef CONFIG_WEP
4398 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
4399 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
4400 wpa_s->current_ssid &&
4401 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
4402 /* Set static WEP keys again */
4403 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
4404 }
4405 #endif /* CONFIG_WEP */
4406
4407 #ifdef CONFIG_IBSS_RSN
4408 if (wpa_s->current_ssid &&
4409 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
4410 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
4411 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
4412 wpa_s->ibss_rsn == NULL) {
4413 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s, wpa_s->current_ssid);
4414 if (!wpa_s->ibss_rsn) {
4415 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
4416 wpa_supplicant_deauthenticate(
4417 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
4418 return;
4419 }
4420
4421 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
4422 }
4423 #endif /* CONFIG_IBSS_RSN */
4424
4425 wpas_wps_notify_assoc(wpa_s, bssid);
4426
4427 #ifndef CONFIG_NO_WMM_AC
4428 if (data) {
4429 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
4430 data->assoc_info.resp_ies_len,
4431 &data->assoc_info.wmm_params);
4432
4433 if (wpa_s->reassoc_same_bss)
4434 wmm_ac_restore_tspecs(wpa_s);
4435 }
4436 #endif /* CONFIG_NO_WMM_AC */
4437
4438 #if defined(CONFIG_FILS) || defined(CONFIG_MBO)
4439 bss = wpa_bss_get_bssid(wpa_s, bssid);
4440 #endif /* CONFIG_FILS || CONFIG_MBO */
4441 #ifdef CONFIG_FILS
4442 if (wpa_key_mgmt_fils(wpa_s->key_mgmt)) {
4443 const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
4444
4445 if (fils_cache_id)
4446 wpa_sm_set_fils_cache_id(wpa_s->wpa, fils_cache_id);
4447 }
4448 #endif /* CONFIG_FILS */
4449
4450 #ifdef CONFIG_MBO
4451 wpas_mbo_check_pmf(wpa_s, bss, wpa_s->current_ssid);
4452 #endif /* CONFIG_MBO */
4453
4454 #ifdef CONFIG_DPP2
4455 wpa_s->dpp_pfs_fallback = 0;
4456 #endif /* CONFIG_DPP2 */
4457
4458 if (wpa_s->current_ssid && wpa_s->current_ssid->enable_4addr_mode)
4459 wpa_supplicant_set_4addr_mode(wpa_s);
4460 }
4461
4462
disconnect_reason_recoverable(u16 reason_code)4463 static int disconnect_reason_recoverable(u16 reason_code)
4464 {
4465 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
4466 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
4467 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
4468 }
4469
4470
wpa_supplicant_event_disassoc(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)4471 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
4472 u16 reason_code,
4473 int locally_generated)
4474 {
4475 const u8 *bssid;
4476
4477 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
4478 /*
4479 * At least Host AP driver and a Prism3 card seemed to be
4480 * generating streams of disconnected events when configuring
4481 * IBSS for WPA-None. Ignore them for now.
4482 */
4483 return;
4484 }
4485
4486 bssid = wpa_s->bssid;
4487 if (is_zero_ether_addr(bssid))
4488 bssid = wpa_s->pending_bssid;
4489
4490 if (!is_zero_ether_addr(bssid) ||
4491 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
4492 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
4493 " reason=%d%s",
4494 MAC2STR(bssid), reason_code,
4495 locally_generated ? " locally_generated=1" : "");
4496 }
4497 }
4498
4499
could_be_psk_mismatch(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)4500 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
4501 int locally_generated)
4502 {
4503 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
4504 !wpa_s->new_connection ||
4505 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
4506 wpa_key_mgmt_sae(wpa_s->key_mgmt))
4507 return 0; /* Not in initial 4-way handshake with PSK */
4508
4509 /*
4510 * It looks like connection was lost while trying to go through PSK
4511 * 4-way handshake. Filter out known disconnection cases that are caused
4512 * by something else than PSK mismatch to avoid confusing reports.
4513 */
4514
4515 if (locally_generated) {
4516 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
4517 return 0;
4518 }
4519
4520 return 1;
4521 }
4522
4523
wpa_supplicant_event_disassoc_finish(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)4524 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
4525 u16 reason_code,
4526 int locally_generated)
4527 {
4528 const u8 *bssid;
4529 struct wpa_bss *fast_reconnect = NULL;
4530 struct wpa_ssid *fast_reconnect_ssid = NULL;
4531 struct wpa_bss *curr = NULL;
4532
4533 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
4534 /*
4535 * At least Host AP driver and a Prism3 card seemed to be
4536 * generating streams of disconnected events when configuring
4537 * IBSS for WPA-None. Ignore them for now.
4538 */
4539 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
4540 "IBSS/WPA-None mode");
4541 return;
4542 }
4543
4544 if (!wpa_s->disconnected && wpa_s->wpa_state >= WPA_AUTHENTICATING &&
4545 reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY &&
4546 locally_generated)
4547 /*
4548 * Remove the inactive AP (which is probably out of range) from
4549 * the BSS list after marking disassociation. In particular
4550 * mac80211-based drivers use the
4551 * WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in
4552 * locally generated disconnection events for cases where the
4553 * AP does not reply anymore.
4554 */
4555 curr = wpa_s->current_bss;
4556
4557 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
4558 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
4559 "pre-shared key may be incorrect");
4560 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
4561 return; /* P2P group removed */
4562 wpas_auth_failed(wpa_s, "WRONG_KEY", wpa_s->pending_bssid);
4563 wpas_notify_psk_mismatch(wpa_s);
4564 #ifdef CONFIG_DPP2
4565 wpas_dpp_send_conn_status_result(wpa_s,
4566 DPP_STATUS_AUTH_FAILURE);
4567 #endif /* CONFIG_DPP2 */
4568 }
4569 if (!wpa_s->disconnected &&
4570 (!wpa_s->auto_reconnect_disabled ||
4571 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
4572 wpas_wps_searching(wpa_s) ||
4573 wpas_wps_reenable_networks_pending(wpa_s))) {
4574 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
4575 "reconnect (wps=%d/%d wpa_state=%d)",
4576 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
4577 wpas_wps_searching(wpa_s),
4578 wpa_s->wpa_state);
4579 if (wpa_s->wpa_state == WPA_COMPLETED &&
4580 wpa_s->current_ssid &&
4581 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
4582 (wpa_s->own_reconnect_req ||
4583 (!locally_generated &&
4584 disconnect_reason_recoverable(reason_code)))) {
4585 /*
4586 * It looks like the AP has dropped association with
4587 * us, but could allow us to get back in. This is also
4588 * triggered for cases where local reconnection request
4589 * is used to force reassociation with the same BSS.
4590 * Try to reconnect to the same BSS without a full scan
4591 * to save time for some common cases.
4592 */
4593 fast_reconnect = wpa_s->current_bss;
4594 fast_reconnect_ssid = wpa_s->current_ssid;
4595 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) {
4596 wpa_supplicant_req_scan(wpa_s, 0, 100000);
4597 } else {
4598 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
4599 "immediate scan");
4600 }
4601 } else {
4602 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
4603 "try to re-connect");
4604 wpa_s->reassociate = 0;
4605 wpa_s->disconnected = 1;
4606 if (!wpa_s->pno)
4607 wpa_supplicant_cancel_sched_scan(wpa_s);
4608 }
4609 bssid = wpa_s->bssid;
4610 if (is_zero_ether_addr(bssid))
4611 bssid = wpa_s->pending_bssid;
4612 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
4613 wpas_connection_failed(wpa_s, bssid, NULL);
4614 wpa_sm_notify_disassoc(wpa_s->wpa);
4615 ptksa_cache_flush(wpa_s->ptksa, wpa_s->bssid, WPA_CIPHER_NONE);
4616
4617 if (locally_generated)
4618 wpa_s->disconnect_reason = -reason_code;
4619 else
4620 wpa_s->disconnect_reason = reason_code;
4621 wpas_notify_disconnect_reason(wpa_s);
4622 if (wpa_supplicant_dynamic_keys(wpa_s)) {
4623 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
4624 wpa_clear_keys(wpa_s, wpa_s->bssid);
4625 }
4626 wpa_supplicant_mark_disassoc(wpa_s);
4627
4628 if (curr)
4629 wpa_bss_remove(wpa_s, curr, "Connection to AP lost");
4630
4631 if (fast_reconnect &&
4632 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
4633 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
4634 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
4635 fast_reconnect->ssid_len) &&
4636 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
4637 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect)) {
4638 #ifndef CONFIG_NO_SCAN_PROCESSING
4639 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
4640 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
4641 fast_reconnect_ssid) < 0) {
4642 /* Recover through full scan */
4643 wpa_supplicant_req_scan(wpa_s, 0, 100000);
4644 }
4645 #endif /* CONFIG_NO_SCAN_PROCESSING */
4646 } else if (fast_reconnect) {
4647 /*
4648 * Could not reconnect to the same BSS due to network being
4649 * disabled. Use a new scan to match the alternative behavior
4650 * above, i.e., to continue automatic reconnection attempt in a
4651 * way that enforces disabled network rules.
4652 */
4653 wpa_supplicant_req_scan(wpa_s, 0, 100000);
4654 }
4655 }
4656
4657
4658 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
wpa_supplicant_delayed_mic_error_report(void * eloop_ctx,void * sock_ctx)4659 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
4660 {
4661 struct wpa_supplicant *wpa_s = eloop_ctx;
4662
4663 if (!wpa_s->pending_mic_error_report)
4664 return;
4665
4666 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
4667 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
4668 wpa_s->pending_mic_error_report = 0;
4669 }
4670 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
4671
4672
4673 static void
wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4674 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
4675 union wpa_event_data *data)
4676 {
4677 int pairwise;
4678 struct os_reltime t;
4679
4680 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
4681 pairwise = (data && data->michael_mic_failure.unicast);
4682 os_get_reltime(&t);
4683 if ((os_reltime_initialized(&wpa_s->last_michael_mic_error) &&
4684 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
4685 wpa_s->pending_mic_error_report) {
4686 if (wpa_s->pending_mic_error_report) {
4687 /*
4688 * Send the pending MIC error report immediately since
4689 * we are going to start countermeasures and AP better
4690 * do the same.
4691 */
4692 wpa_sm_key_request(wpa_s->wpa, 1,
4693 wpa_s->pending_mic_error_pairwise);
4694 }
4695
4696 /* Send the new MIC error report immediately since we are going
4697 * to start countermeasures and AP better do the same.
4698 */
4699 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
4700
4701 /* initialize countermeasures */
4702 wpa_s->countermeasures = 1;
4703
4704 wpa_bssid_ignore_add(wpa_s, wpa_s->bssid);
4705
4706 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
4707
4708 /*
4709 * Need to wait for completion of request frame. We do not get
4710 * any callback for the message completion, so just wait a
4711 * short while and hope for the best. */
4712 os_sleep(0, 10000);
4713
4714 wpa_drv_set_countermeasures(wpa_s, 1);
4715 wpa_supplicant_deauthenticate(wpa_s,
4716 WLAN_REASON_MICHAEL_MIC_FAILURE);
4717 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
4718 wpa_s, NULL);
4719 eloop_register_timeout(60, 0,
4720 wpa_supplicant_stop_countermeasures,
4721 wpa_s, NULL);
4722 /* TODO: mark the AP rejected for 60 second. STA is
4723 * allowed to associate with another AP.. */
4724 } else {
4725 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
4726 if (wpa_s->mic_errors_seen) {
4727 /*
4728 * Reduce the effectiveness of Michael MIC error
4729 * reports as a means for attacking against TKIP if
4730 * more than one MIC failure is noticed with the same
4731 * PTK. We delay the transmission of the reports by a
4732 * random time between 0 and 60 seconds in order to
4733 * force the attacker wait 60 seconds before getting
4734 * the information on whether a frame resulted in a MIC
4735 * failure.
4736 */
4737 u8 rval[4];
4738 int sec;
4739
4740 if (os_get_random(rval, sizeof(rval)) < 0)
4741 sec = os_random() % 60;
4742 else
4743 sec = WPA_GET_BE32(rval) % 60;
4744 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
4745 "report %d seconds", sec);
4746 wpa_s->pending_mic_error_report = 1;
4747 wpa_s->pending_mic_error_pairwise = pairwise;
4748 eloop_cancel_timeout(
4749 wpa_supplicant_delayed_mic_error_report,
4750 wpa_s, NULL);
4751 eloop_register_timeout(
4752 sec, os_random() % 1000000,
4753 wpa_supplicant_delayed_mic_error_report,
4754 wpa_s, NULL);
4755 } else {
4756 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
4757 }
4758 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
4759 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
4760 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
4761 }
4762 wpa_s->last_michael_mic_error = t;
4763 wpa_s->mic_errors_seen++;
4764 }
4765
4766
4767 #ifdef CONFIG_TERMINATE_ONLASTIF
any_interfaces(struct wpa_supplicant * head)4768 static int any_interfaces(struct wpa_supplicant *head)
4769 {
4770 struct wpa_supplicant *wpa_s;
4771
4772 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
4773 if (!wpa_s->interface_removed)
4774 return 1;
4775 return 0;
4776 }
4777 #endif /* CONFIG_TERMINATE_ONLASTIF */
4778
4779
4780 static void
wpa_supplicant_event_interface_status(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4781 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
4782 union wpa_event_data *data)
4783 {
4784 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
4785 return;
4786
4787 switch (data->interface_status.ievent) {
4788 case EVENT_INTERFACE_ADDED:
4789 if (!wpa_s->interface_removed)
4790 break;
4791 wpa_s->interface_removed = 0;
4792 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
4793 if (wpa_supplicant_driver_init(wpa_s) < 0) {
4794 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
4795 "driver after interface was added");
4796 }
4797
4798 #ifdef CONFIG_P2P
4799 if (!wpa_s->global->p2p &&
4800 !wpa_s->global->p2p_disabled &&
4801 !wpa_s->conf->p2p_disabled &&
4802 (wpa_s->drv_flags &
4803 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
4804 wpas_p2p_add_p2pdev_interface(
4805 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
4806 wpa_printf(MSG_INFO,
4807 "P2P: Failed to enable P2P Device interface");
4808 /* Try to continue without. P2P will be disabled. */
4809 }
4810 #endif /* CONFIG_P2P */
4811
4812 break;
4813 case EVENT_INTERFACE_REMOVED:
4814 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
4815 wpa_s->interface_removed = 1;
4816 wpa_supplicant_mark_disassoc(wpa_s);
4817 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
4818 l2_packet_deinit(wpa_s->l2);
4819 wpa_s->l2 = NULL;
4820
4821 #ifdef CONFIG_P2P
4822 if (wpa_s->global->p2p &&
4823 wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
4824 (wpa_s->drv_flags &
4825 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
4826 wpa_dbg(wpa_s, MSG_DEBUG,
4827 "Removing P2P Device interface");
4828 wpa_supplicant_remove_iface(
4829 wpa_s->global, wpa_s->global->p2p_init_wpa_s,
4830 0);
4831 wpa_s->global->p2p_init_wpa_s = NULL;
4832 }
4833 #endif /* CONFIG_P2P */
4834
4835 #ifdef CONFIG_MATCH_IFACE
4836 if (wpa_s->matched) {
4837 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
4838 break;
4839 }
4840 #endif /* CONFIG_MATCH_IFACE */
4841
4842 #ifdef CONFIG_TERMINATE_ONLASTIF
4843 /* check if last interface */
4844 if (!any_interfaces(wpa_s->global->ifaces))
4845 eloop_terminate();
4846 #endif /* CONFIG_TERMINATE_ONLASTIF */
4847 break;
4848 }
4849 }
4850
4851
4852 #ifdef CONFIG_TDLS
wpa_supplicant_event_tdls(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4853 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
4854 union wpa_event_data *data)
4855 {
4856 if (data == NULL)
4857 return;
4858 switch (data->tdls.oper) {
4859 case TDLS_REQUEST_SETUP:
4860 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
4861 if (wpa_tdls_is_external_setup(wpa_s->wpa))
4862 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
4863 else
4864 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
4865 break;
4866 case TDLS_REQUEST_TEARDOWN:
4867 if (wpa_tdls_is_external_setup(wpa_s->wpa))
4868 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
4869 data->tdls.reason_code);
4870 else
4871 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
4872 data->tdls.peer);
4873 break;
4874 case TDLS_REQUEST_DISCOVER:
4875 wpa_tdls_send_discovery_request(wpa_s->wpa,
4876 data->tdls.peer);
4877 break;
4878 }
4879 }
4880 #endif /* CONFIG_TDLS */
4881
4882
4883 #ifdef CONFIG_WNM
wpa_supplicant_event_wnm(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4884 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
4885 union wpa_event_data *data)
4886 {
4887 if (data == NULL)
4888 return;
4889 switch (data->wnm.oper) {
4890 case WNM_OPER_SLEEP:
4891 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
4892 "(action=%d, intval=%d)",
4893 data->wnm.sleep_action, data->wnm.sleep_intval);
4894 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
4895 data->wnm.sleep_intval, NULL);
4896 break;
4897 }
4898 }
4899 #endif /* CONFIG_WNM */
4900
4901
4902 #ifdef CONFIG_IEEE80211R
4903 static void
wpa_supplicant_event_ft_response(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4904 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
4905 union wpa_event_data *data)
4906 {
4907 if (data == NULL)
4908 return;
4909
4910 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
4911 data->ft_ies.ies_len,
4912 data->ft_ies.ft_action,
4913 data->ft_ies.target_ap,
4914 data->ft_ies.ric_ies,
4915 data->ft_ies.ric_ies_len) < 0) {
4916 /* TODO: prevent MLME/driver from trying to associate? */
4917 }
4918 }
4919 #endif /* CONFIG_IEEE80211R */
4920
4921
4922 #ifdef CONFIG_IBSS_RSN
wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4923 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
4924 union wpa_event_data *data)
4925 {
4926 struct wpa_ssid *ssid;
4927 if (wpa_s->wpa_state < WPA_ASSOCIATED)
4928 return;
4929 if (data == NULL)
4930 return;
4931 ssid = wpa_s->current_ssid;
4932 if (ssid == NULL)
4933 return;
4934 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
4935 return;
4936
4937 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
4938 }
4939
4940
wpa_supplicant_event_ibss_auth(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4941 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
4942 union wpa_event_data *data)
4943 {
4944 struct wpa_ssid *ssid = wpa_s->current_ssid;
4945
4946 if (ssid == NULL)
4947 return;
4948
4949 /* check if the ssid is correctly configured as IBSS/RSN */
4950 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
4951 return;
4952
4953 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
4954 data->rx_mgmt.frame_len);
4955 }
4956 #endif /* CONFIG_IBSS_RSN */
4957
4958
4959 #ifdef CONFIG_IEEE80211R
ft_rx_action(struct wpa_supplicant * wpa_s,const u8 * data,size_t len)4960 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
4961 size_t len)
4962 {
4963 const u8 *sta_addr, *target_ap_addr;
4964 u16 status;
4965
4966 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
4967 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
4968 return; /* only SME case supported for now */
4969 if (len < 1 + 2 * ETH_ALEN + 2)
4970 return;
4971 if (data[0] != 2)
4972 return; /* Only FT Action Response is supported for now */
4973 sta_addr = data + 1;
4974 target_ap_addr = data + 1 + ETH_ALEN;
4975 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
4976 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
4977 MACSTR " TargetAP " MACSTR " status %u",
4978 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
4979
4980 if (!ether_addr_equal(sta_addr, wpa_s->own_addr)) {
4981 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
4982 " in FT Action Response", MAC2STR(sta_addr));
4983 return;
4984 }
4985
4986 if (status) {
4987 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
4988 "failure (status code %d)", status);
4989 /* TODO: report error to FT code(?) */
4990 return;
4991 }
4992
4993 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
4994 len - (1 + 2 * ETH_ALEN + 2), 1,
4995 target_ap_addr, NULL, 0) < 0)
4996 return;
4997
4998 #ifdef CONFIG_SME
4999 {
5000 struct wpa_bss *bss;
5001 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
5002 if (bss)
5003 wpa_s->sme.freq = bss->freq;
5004 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
5005 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
5006 WLAN_AUTH_FT);
5007 }
5008 #endif /* CONFIG_SME */
5009 }
5010 #endif /* CONFIG_IEEE80211R */
5011
5012
wpa_supplicant_event_unprot_deauth(struct wpa_supplicant * wpa_s,struct unprot_deauth * e)5013 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
5014 struct unprot_deauth *e)
5015 {
5016 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
5017 "dropped: " MACSTR " -> " MACSTR
5018 " (reason code %u)",
5019 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
5020 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
5021 }
5022
5023
wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant * wpa_s,struct unprot_disassoc * e)5024 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
5025 struct unprot_disassoc *e)
5026 {
5027 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
5028 "dropped: " MACSTR " -> " MACSTR
5029 " (reason code %u)",
5030 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
5031 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
5032 }
5033
5034
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)5035 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
5036 u16 reason_code, int locally_generated,
5037 const u8 *ie, size_t ie_len, int deauth)
5038 {
5039 #ifdef CONFIG_AP
5040 if (wpa_s->ap_iface && addr) {
5041 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
5042 return;
5043 }
5044
5045 if (wpa_s->ap_iface) {
5046 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
5047 return;
5048 }
5049 #endif /* CONFIG_AP */
5050
5051 if (!locally_generated)
5052 wpa_s->own_disconnect_req = 0;
5053
5054 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
5055
5056 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
5057 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
5058 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
5059 eapol_sm_failed(wpa_s->eapol))) &&
5060 !wpa_s->eap_expected_failure))
5061 wpas_auth_failed(wpa_s, "AUTH_FAILED", addr);
5062
5063 #ifdef CONFIG_P2P
5064 if (deauth && reason_code > 0) {
5065 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
5066 locally_generated) > 0) {
5067 /*
5068 * The interface was removed, so cannot continue
5069 * processing any additional operations after this.
5070 */
5071 return;
5072 }
5073 }
5074 #endif /* CONFIG_P2P */
5075
5076 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
5077 locally_generated);
5078 }
5079
5080
wpas_event_disassoc(struct wpa_supplicant * wpa_s,struct disassoc_info * info)5081 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
5082 struct disassoc_info *info)
5083 {
5084 u16 reason_code = 0;
5085 int locally_generated = 0;
5086 const u8 *addr = NULL;
5087 const u8 *ie = NULL;
5088 size_t ie_len = 0;
5089
5090 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
5091
5092 if (info) {
5093 addr = info->addr;
5094 ie = info->ie;
5095 ie_len = info->ie_len;
5096 reason_code = info->reason_code;
5097 locally_generated = info->locally_generated;
5098 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s", reason_code,
5099 reason2str(reason_code),
5100 locally_generated ? " locally_generated=1" : "");
5101 if (addr)
5102 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
5103 MAC2STR(addr));
5104 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
5105 ie, ie_len);
5106 }
5107
5108 #ifdef CONFIG_AP
5109 if (wpa_s->ap_iface && info && info->addr) {
5110 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
5111 return;
5112 }
5113
5114 if (wpa_s->ap_iface) {
5115 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
5116 return;
5117 }
5118 #endif /* CONFIG_AP */
5119
5120 #ifdef CONFIG_P2P
5121 if (info) {
5122 wpas_p2p_disassoc_notif(
5123 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
5124 locally_generated);
5125 }
5126 #endif /* CONFIG_P2P */
5127
5128 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
5129 sme_event_disassoc(wpa_s, info);
5130
5131 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
5132 ie, ie_len, 0);
5133 }
5134
5135
wpas_event_deauth(struct wpa_supplicant * wpa_s,struct deauth_info * info)5136 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
5137 struct deauth_info *info)
5138 {
5139 u16 reason_code = 0;
5140 int locally_generated = 0;
5141 const u8 *addr = NULL;
5142 const u8 *ie = NULL;
5143 size_t ie_len = 0;
5144
5145 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
5146
5147 if (info) {
5148 addr = info->addr;
5149 ie = info->ie;
5150 ie_len = info->ie_len;
5151 reason_code = info->reason_code;
5152 locally_generated = info->locally_generated;
5153 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s",
5154 reason_code, reason2str(reason_code),
5155 locally_generated ? " locally_generated=1" : "");
5156 if (addr) {
5157 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
5158 MAC2STR(addr));
5159 }
5160 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
5161 ie, ie_len);
5162 }
5163
5164 wpa_reset_ft_completed(wpa_s->wpa);
5165
5166 wpas_event_disconnect(wpa_s, addr, reason_code,
5167 locally_generated, ie, ie_len, 1);
5168 }
5169
5170
reg_init_str(enum reg_change_initiator init)5171 static const char * reg_init_str(enum reg_change_initiator init)
5172 {
5173 switch (init) {
5174 case REGDOM_SET_BY_CORE:
5175 return "CORE";
5176 case REGDOM_SET_BY_USER:
5177 return "USER";
5178 case REGDOM_SET_BY_DRIVER:
5179 return "DRIVER";
5180 case REGDOM_SET_BY_COUNTRY_IE:
5181 return "COUNTRY_IE";
5182 case REGDOM_BEACON_HINT:
5183 return "BEACON_HINT";
5184 }
5185 return "?";
5186 }
5187
5188
reg_type_str(enum reg_type type)5189 static const char * reg_type_str(enum reg_type type)
5190 {
5191 switch (type) {
5192 case REGDOM_TYPE_UNKNOWN:
5193 return "UNKNOWN";
5194 case REGDOM_TYPE_COUNTRY:
5195 return "COUNTRY";
5196 case REGDOM_TYPE_WORLD:
5197 return "WORLD";
5198 case REGDOM_TYPE_CUSTOM_WORLD:
5199 return "CUSTOM_WORLD";
5200 case REGDOM_TYPE_INTERSECTION:
5201 return "INTERSECTION";
5202 }
5203 return "?";
5204 }
5205
5206
wpas_beacon_hint(struct wpa_supplicant * wpa_s,const char * title,struct frequency_attrs * attrs)5207 static void wpas_beacon_hint(struct wpa_supplicant *wpa_s, const char *title,
5208 struct frequency_attrs *attrs)
5209 {
5210 if (!attrs->freq)
5211 return;
5212 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_BEACON_HINT
5213 "%s freq=%u max_tx_power=%u%s%s%s",
5214 title, attrs->freq, attrs->max_tx_power,
5215 attrs->disabled ? " disabled=1" : "",
5216 attrs->no_ir ? " no_ir=1" : "",
5217 attrs->radar ? " radar=1" : "");
5218 }
5219
5220
wpa_supplicant_update_channel_list(struct wpa_supplicant * wpa_s,struct channel_list_changed * info)5221 void wpa_supplicant_update_channel_list(struct wpa_supplicant *wpa_s,
5222 struct channel_list_changed *info)
5223 {
5224 struct wpa_supplicant *ifs;
5225 u8 dfs_domain;
5226
5227 /*
5228 * To allow backwards compatibility with higher level layers that
5229 * assumed the REGDOM_CHANGE event is sent over the initially added
5230 * interface. Find the highest parent of this interface and use it to
5231 * send the event.
5232 */
5233 for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
5234 ;
5235
5236 if (info) {
5237 wpa_msg(ifs, MSG_INFO,
5238 WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
5239 reg_init_str(info->initiator), reg_type_str(info->type),
5240 info->alpha2[0] ? " alpha2=" : "",
5241 info->alpha2[0] ? info->alpha2 : "");
5242
5243 if (info->initiator == REGDOM_BEACON_HINT) {
5244 wpas_beacon_hint(ifs, "before",
5245 &info->beacon_hint_before);
5246 wpas_beacon_hint(ifs, "after",
5247 &info->beacon_hint_after);
5248 }
5249 }
5250
5251 if (wpa_s->drv_priv == NULL)
5252 return; /* Ignore event during drv initialization */
5253
5254 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
5255 radio_list) {
5256 bool was_6ghz_enabled;
5257
5258 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
5259 ifs->ifname);
5260 free_hw_features(ifs);
5261 ifs->hw.modes = wpa_drv_get_hw_feature_data(
5262 ifs, &ifs->hw.num_modes, &ifs->hw.flags, &dfs_domain);
5263
5264 was_6ghz_enabled = ifs->is_6ghz_enabled;
5265 ifs->is_6ghz_enabled = wpas_is_6ghz_supported(ifs, true);
5266
5267 /* Restart PNO/sched_scan with updated channel list */
5268 if (ifs->pno) {
5269 wpas_stop_pno(ifs);
5270 wpas_start_pno(ifs);
5271 } else if (ifs->sched_scanning && !ifs->pno_sched_pending) {
5272 wpa_dbg(ifs, MSG_DEBUG,
5273 "Channel list changed - restart sched_scan");
5274 wpas_scan_restart_sched_scan(ifs);
5275 } else if (!was_6ghz_enabled && ifs->is_6ghz_enabled) {
5276 wpa_dbg(ifs, MSG_INFO,
5277 "Channel list changed: 6 GHz was enabled");
5278
5279 ifs->crossed_6ghz_dom = true;
5280 }
5281 }
5282
5283 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
5284 }
5285
5286
wpas_event_rx_mgmt_action(struct wpa_supplicant * wpa_s,const u8 * frame,size_t len,int freq,int rssi)5287 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
5288 const u8 *frame, size_t len, int freq,
5289 int rssi)
5290 {
5291 const struct ieee80211_mgmt *mgmt;
5292 const u8 *payload;
5293 size_t plen;
5294 u8 category;
5295
5296 if (len < IEEE80211_HDRLEN + 2)
5297 return;
5298
5299 mgmt = (const struct ieee80211_mgmt *) frame;
5300 payload = frame + IEEE80211_HDRLEN;
5301 category = *payload++;
5302 plen = len - IEEE80211_HDRLEN - 1;
5303
5304 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
5305 " Category=%u DataLen=%d freq=%d MHz",
5306 MAC2STR(mgmt->sa), category, (int) plen, freq);
5307
5308 #ifndef CONFIG_NO_WMM_AC
5309 if (category == WLAN_ACTION_WMM) {
5310 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
5311 return;
5312 }
5313 #endif /* CONFIG_NO_WMM_AC */
5314
5315 #ifdef CONFIG_IEEE80211R
5316 if (category == WLAN_ACTION_FT) {
5317 ft_rx_action(wpa_s, payload, plen);
5318 return;
5319 }
5320 #endif /* CONFIG_IEEE80211R */
5321
5322 #ifdef CONFIG_SME
5323 if (category == WLAN_ACTION_SA_QUERY) {
5324 sme_sa_query_rx(wpa_s, mgmt->da, mgmt->sa, payload, plen);
5325 return;
5326 }
5327 #endif /* CONFIG_SME */
5328
5329 #ifdef CONFIG_WNM
5330 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
5331 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
5332 return;
5333 }
5334 #endif /* CONFIG_WNM */
5335
5336 #ifdef CONFIG_GAS
5337 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
5338 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
5339 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
5340 mgmt->u.action.category,
5341 payload, plen, freq) == 0)
5342 return;
5343 #endif /* CONFIG_GAS */
5344
5345 #ifdef CONFIG_GAS_SERVER
5346 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
5347 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
5348 gas_server_rx(wpa_s->gas_server, mgmt->da, mgmt->sa, mgmt->bssid,
5349 mgmt->u.action.category,
5350 payload, plen, freq) == 0)
5351 return;
5352 #endif /* CONFIG_GAS_SERVER */
5353
5354 #ifdef CONFIG_TDLS
5355 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
5356 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
5357 wpa_dbg(wpa_s, MSG_DEBUG,
5358 "TDLS: Received Discovery Response from " MACSTR,
5359 MAC2STR(mgmt->sa));
5360 if (wpa_s->valid_links &&
5361 wpa_tdls_process_discovery_response(wpa_s->wpa, mgmt->sa,
5362 &payload[1], plen - 1))
5363 wpa_dbg(wpa_s, MSG_ERROR,
5364 "TDLS: Discovery Response process failed for "
5365 MACSTR, MAC2STR(mgmt->sa));
5366 return;
5367 }
5368 #endif /* CONFIG_TDLS */
5369
5370 #ifdef CONFIG_INTERWORKING
5371 if (category == WLAN_ACTION_QOS && plen >= 1 &&
5372 payload[0] == QOS_QOS_MAP_CONFIG) {
5373 const u8 *pos = payload + 1;
5374 size_t qlen = plen - 1;
5375 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
5376 MACSTR, MAC2STR(mgmt->sa));
5377 if (ether_addr_equal(mgmt->sa, wpa_s->bssid) &&
5378 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
5379 pos[1] <= qlen - 2 && pos[1] >= 16)
5380 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
5381 return;
5382 }
5383 #endif /* CONFIG_INTERWORKING */
5384
5385 #ifndef CONFIG_NO_RRM
5386 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
5387 payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
5388 wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
5389 mgmt->da,
5390 payload + 1,
5391 plen - 1);
5392 return;
5393 }
5394
5395 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
5396 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
5397 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
5398 return;
5399 }
5400
5401 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
5402 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
5403 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
5404 payload + 1, plen - 1,
5405 rssi);
5406 return;
5407 }
5408 #endif /* CONFIG_NO_RRM */
5409
5410 #ifdef CONFIG_FST
5411 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
5412 fst_rx_action(wpa_s->fst, mgmt, len);
5413 return;
5414 }
5415 #endif /* CONFIG_FST */
5416
5417 #ifdef CONFIG_NAN_USD
5418 if (category == WLAN_ACTION_PUBLIC && plen >= 5 &&
5419 payload[0] == WLAN_PA_VENDOR_SPECIFIC &&
5420 WPA_GET_BE32(&payload[1]) == NAN_SDF_VENDOR_TYPE) {
5421 payload += 5;
5422 plen -= 5;
5423 wpas_nan_usd_rx_sdf(wpa_s, mgmt->sa, freq, payload, plen);
5424 return;
5425 }
5426 #endif /* CONFIG_NAN_USD */
5427
5428 #ifdef CONFIG_DPP
5429 if (category == WLAN_ACTION_PUBLIC && plen >= 5 &&
5430 payload[0] == WLAN_PA_VENDOR_SPECIFIC &&
5431 WPA_GET_BE24(&payload[1]) == OUI_WFA &&
5432 payload[4] == DPP_OUI_TYPE) {
5433 payload++;
5434 plen--;
5435 wpas_dpp_rx_action(wpa_s, mgmt->sa, payload, plen, freq);
5436 return;
5437 }
5438 #endif /* CONFIG_DPP */
5439
5440 #ifndef CONFIG_NO_ROBUST_AV
5441 if (category == WLAN_ACTION_ROBUST_AV_STREAMING &&
5442 payload[0] == ROBUST_AV_SCS_RESP) {
5443 wpas_handle_robust_av_scs_recv_action(wpa_s, mgmt->sa,
5444 payload + 1, plen - 1);
5445 return;
5446 }
5447
5448 if (category == WLAN_ACTION_ROBUST_AV_STREAMING &&
5449 payload[0] == ROBUST_AV_MSCS_RESP) {
5450 wpas_handle_robust_av_recv_action(wpa_s, mgmt->sa,
5451 payload + 1, plen - 1);
5452 return;
5453 }
5454
5455 if (category == WLAN_ACTION_VENDOR_SPECIFIC_PROTECTED && plen > 4 &&
5456 WPA_GET_BE32(payload) == QM_ACTION_VENDOR_TYPE) {
5457 wpas_handle_qos_mgmt_recv_action(wpa_s, mgmt->sa,
5458 payload + 4, plen - 4);
5459 return;
5460 }
5461 #endif /* CONFIG_NO_ROBUST_AV */
5462
5463 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
5464 category, payload, plen, freq);
5465 if (wpa_s->ifmsh)
5466 mesh_mpm_action_rx(wpa_s, mgmt, len);
5467 }
5468
5469
wpa_supplicant_notify_avoid_freq(struct wpa_supplicant * wpa_s,union wpa_event_data * event)5470 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
5471 union wpa_event_data *event)
5472 {
5473 struct wpa_freq_range_list *list;
5474 char *str = NULL;
5475
5476 list = &event->freq_range;
5477
5478 if (list->num)
5479 str = freq_range_list_str(list);
5480 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
5481 str ? str : "");
5482
5483 #ifdef CONFIG_P2P
5484 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
5485 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
5486 __func__);
5487 } else {
5488 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
5489
5490 /*
5491 * The update channel flow will also take care of moving a GO
5492 * from the unsafe frequency if needed.
5493 */
5494 wpas_p2p_update_channel_list(wpa_s,
5495 WPAS_P2P_CHANNEL_UPDATE_AVOID);
5496 }
5497 #endif /* CONFIG_P2P */
5498
5499 os_free(str);
5500 }
5501
5502
wpa_supplicant_event_port_authorized(struct wpa_supplicant * wpa_s)5503 static void wpa_supplicant_event_port_authorized(struct wpa_supplicant *wpa_s)
5504 {
5505 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
5506 wpa_supplicant_cancel_auth_timeout(wpa_s);
5507 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
5508 eapol_sm_notify_portValid(wpa_s->eapol, true);
5509 eapol_sm_notify_eap_success(wpa_s->eapol, true);
5510 wpa_s->drv_authorized_port = 1;
5511 }
5512 }
5513
5514
wpas_event_cac_ms(const struct wpa_supplicant * wpa_s,int freq)5515 static unsigned int wpas_event_cac_ms(const struct wpa_supplicant *wpa_s,
5516 int freq)
5517 {
5518 size_t i;
5519 int j;
5520
5521 for (i = 0; i < wpa_s->hw.num_modes; i++) {
5522 const struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i];
5523
5524 for (j = 0; j < mode->num_channels; j++) {
5525 const struct hostapd_channel_data *chan;
5526
5527 chan = &mode->channels[j];
5528 if (chan->freq == freq)
5529 return chan->dfs_cac_ms;
5530 }
5531 }
5532
5533 return 0;
5534 }
5535
5536
wpas_event_dfs_cac_started(struct wpa_supplicant * wpa_s,struct dfs_event * radar)5537 static void wpas_event_dfs_cac_started(struct wpa_supplicant *wpa_s,
5538 struct dfs_event *radar)
5539 {
5540 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
5541 if (wpa_s->ap_iface || wpa_s->ifmsh) {
5542 wpas_ap_event_dfs_cac_started(wpa_s, radar);
5543 } else
5544 #endif /* NEED_AP_MLME && CONFIG_AP */
5545 {
5546 unsigned int cac_time = wpas_event_cac_ms(wpa_s, radar->freq);
5547
5548 cac_time /= 1000; /* convert from ms to sec */
5549 if (!cac_time)
5550 cac_time = 10 * 60; /* max timeout: 10 minutes */
5551
5552 /* Restart auth timeout: CAC time added to initial timeout */
5553 wpas_auth_timeout_restart(wpa_s, cac_time);
5554 }
5555 }
5556
5557
wpas_event_dfs_cac_finished(struct wpa_supplicant * wpa_s,struct dfs_event * radar)5558 static void wpas_event_dfs_cac_finished(struct wpa_supplicant *wpa_s,
5559 struct dfs_event *radar)
5560 {
5561 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
5562 if (wpa_s->ap_iface || wpa_s->ifmsh) {
5563 wpas_ap_event_dfs_cac_finished(wpa_s, radar);
5564 } else
5565 #endif /* NEED_AP_MLME && CONFIG_AP */
5566 {
5567 /* Restart auth timeout with original value after CAC is
5568 * finished */
5569 wpas_auth_timeout_restart(wpa_s, 0);
5570 }
5571 }
5572
5573
wpas_event_dfs_cac_aborted(struct wpa_supplicant * wpa_s,struct dfs_event * radar)5574 static void wpas_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s,
5575 struct dfs_event *radar)
5576 {
5577 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
5578 if (wpa_s->ap_iface || wpa_s->ifmsh) {
5579 wpas_ap_event_dfs_cac_aborted(wpa_s, radar);
5580 } else
5581 #endif /* NEED_AP_MLME && CONFIG_AP */
5582 {
5583 /* Restart auth timeout with original value after CAC is
5584 * aborted */
5585 wpas_auth_timeout_restart(wpa_s, 0);
5586 }
5587 }
5588
5589
wpa_supplicant_event_assoc_auth(struct wpa_supplicant * wpa_s,union wpa_event_data * data)5590 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
5591 union wpa_event_data *data)
5592 {
5593 wpa_dbg(wpa_s, MSG_DEBUG,
5594 "Connection authorized by device, previous state %d",
5595 wpa_s->wpa_state);
5596
5597 wpa_supplicant_event_port_authorized(wpa_s);
5598
5599 wpa_s->last_eapol_matches_bssid = 1;
5600
5601 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
5602 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
5603 data->assoc_info.ptk_kck_len,
5604 data->assoc_info.ptk_kek,
5605 data->assoc_info.ptk_kek_len);
5606 #ifdef CONFIG_FILS
5607 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
5608 struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
5609 const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
5610
5611 /* Update ERP next sequence number */
5612 eapol_sm_update_erp_next_seq_num(
5613 wpa_s->eapol, data->assoc_info.fils_erp_next_seq_num);
5614
5615 if (data->assoc_info.fils_pmk && data->assoc_info.fils_pmkid) {
5616 /* Add the new PMK and PMKID to the PMKSA cache */
5617 wpa_sm_pmksa_cache_add(wpa_s->wpa,
5618 data->assoc_info.fils_pmk,
5619 data->assoc_info.fils_pmk_len,
5620 data->assoc_info.fils_pmkid,
5621 wpa_s->valid_links ?
5622 wpa_s->ap_mld_addr :
5623 wpa_s->bssid,
5624 fils_cache_id);
5625 } else if (data->assoc_info.fils_pmkid) {
5626 /* Update the current PMKSA used for this connection */
5627 pmksa_cache_set_current(wpa_s->wpa,
5628 data->assoc_info.fils_pmkid,
5629 NULL, NULL, 0, NULL, 0, true);
5630 }
5631 }
5632 #endif /* CONFIG_FILS */
5633 }
5634
5635
connect_fail_reason(enum sta_connect_fail_reason_codes code)5636 static const char * connect_fail_reason(enum sta_connect_fail_reason_codes code)
5637 {
5638 switch (code) {
5639 case STA_CONNECT_FAIL_REASON_UNSPECIFIED:
5640 return "";
5641 case STA_CONNECT_FAIL_REASON_NO_BSS_FOUND:
5642 return "no_bss_found";
5643 case STA_CONNECT_FAIL_REASON_AUTH_TX_FAIL:
5644 return "auth_tx_fail";
5645 case STA_CONNECT_FAIL_REASON_AUTH_NO_ACK_RECEIVED:
5646 return "auth_no_ack_received";
5647 case STA_CONNECT_FAIL_REASON_AUTH_NO_RESP_RECEIVED:
5648 return "auth_no_resp_received";
5649 case STA_CONNECT_FAIL_REASON_ASSOC_REQ_TX_FAIL:
5650 return "assoc_req_tx_fail";
5651 case STA_CONNECT_FAIL_REASON_ASSOC_NO_ACK_RECEIVED:
5652 return "assoc_no_ack_received";
5653 case STA_CONNECT_FAIL_REASON_ASSOC_NO_RESP_RECEIVED:
5654 return "assoc_no_resp_received";
5655 default:
5656 return "unknown_reason";
5657 }
5658 }
5659
5660
wpas_event_assoc_reject(struct wpa_supplicant * wpa_s,union wpa_event_data * data)5661 static void wpas_event_assoc_reject(struct wpa_supplicant *wpa_s,
5662 union wpa_event_data *data)
5663 {
5664 const u8 *bssid = data->assoc_reject.bssid;
5665 struct ieee802_11_elems elems;
5666 struct ml_sta_link_info ml_info[MAX_NUM_MLD_LINKS];
5667 const u8 *link_bssids[MAX_NUM_MLD_LINKS + 1];
5668 #ifdef CONFIG_MBO
5669 struct wpa_bss *reject_bss;
5670 #endif /* CONFIG_MBO */
5671
5672 if (!bssid || is_zero_ether_addr(bssid))
5673 bssid = wpa_s->pending_bssid;
5674 #ifdef CONFIG_MBO
5675 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
5676 reject_bss = wpa_s->current_bss;
5677 else
5678 reject_bss = wpa_bss_get_bssid(wpa_s, bssid);
5679 #endif /* CONFIG_MBO */
5680
5681 if (data->assoc_reject.bssid)
5682 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
5683 "bssid=" MACSTR " status_code=%u%s%s%s%s%s",
5684 MAC2STR(data->assoc_reject.bssid),
5685 data->assoc_reject.status_code,
5686 data->assoc_reject.timed_out ? " timeout" : "",
5687 data->assoc_reject.timeout_reason ? "=" : "",
5688 data->assoc_reject.timeout_reason ?
5689 data->assoc_reject.timeout_reason : "",
5690 data->assoc_reject.reason_code !=
5691 STA_CONNECT_FAIL_REASON_UNSPECIFIED ?
5692 " qca_driver_reason=" : "",
5693 connect_fail_reason(data->assoc_reject.reason_code));
5694 else
5695 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
5696 "status_code=%u%s%s%s%s%s",
5697 data->assoc_reject.status_code,
5698 data->assoc_reject.timed_out ? " timeout" : "",
5699 data->assoc_reject.timeout_reason ? "=" : "",
5700 data->assoc_reject.timeout_reason ?
5701 data->assoc_reject.timeout_reason : "",
5702 data->assoc_reject.reason_code !=
5703 STA_CONNECT_FAIL_REASON_UNSPECIFIED ?
5704 " qca_driver_reason=" : "",
5705 connect_fail_reason(data->assoc_reject.reason_code));
5706 wpa_s->assoc_status_code = data->assoc_reject.status_code;
5707 wpas_notify_assoc_status_code(wpa_s);
5708
5709 #ifdef CONFIG_OWE
5710 if (data->assoc_reject.status_code ==
5711 WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED &&
5712 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
5713 wpa_s->current_ssid &&
5714 wpa_s->current_ssid->owe_group == 0 &&
5715 wpa_s->last_owe_group != 21) {
5716 struct wpa_ssid *ssid = wpa_s->current_ssid;
5717 struct wpa_bss *bss = wpa_s->current_bss;
5718
5719 if (!bss) {
5720 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
5721 if (!bss) {
5722 wpas_connection_failed(wpa_s, bssid, NULL);
5723 wpa_supplicant_mark_disassoc(wpa_s);
5724 return;
5725 }
5726 }
5727 wpa_printf(MSG_DEBUG, "OWE: Try next supported DH group");
5728 wpas_connect_work_done(wpa_s);
5729 wpa_supplicant_mark_disassoc(wpa_s);
5730 wpa_supplicant_connect(wpa_s, bss, ssid);
5731 return;
5732 }
5733 #endif /* CONFIG_OWE */
5734
5735 #ifdef CONFIG_DPP2
5736 /* Try to follow AP's PFS policy. WLAN_STATUS_ASSOC_DENIED_UNSPEC is
5737 * the status code defined in the DPP R2 tech spec.
5738 * WLAN_STATUS_AKMP_NOT_VALID is addressed in the same manner as an
5739 * interoperability workaround with older hostapd implementation. */
5740 if (DPP_VERSION > 1 && wpa_s->current_ssid &&
5741 (wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP ||
5742 ((wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
5743 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP)) &&
5744 wpa_s->current_ssid->dpp_pfs == 0 &&
5745 (data->assoc_reject.status_code ==
5746 WLAN_STATUS_ASSOC_DENIED_UNSPEC ||
5747 data->assoc_reject.status_code == WLAN_STATUS_AKMP_NOT_VALID)) {
5748 struct wpa_ssid *ssid = wpa_s->current_ssid;
5749 struct wpa_bss *bss = wpa_s->current_bss;
5750
5751 wpa_s->current_ssid->dpp_pfs_fallback ^= 1;
5752 if (!bss)
5753 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
5754 if (!bss || wpa_s->dpp_pfs_fallback) {
5755 wpa_printf(MSG_DEBUG,
5756 "DPP: Updated PFS policy for next try");
5757 wpas_connection_failed(wpa_s, bssid, NULL);
5758 wpa_supplicant_mark_disassoc(wpa_s);
5759 return;
5760 }
5761 wpa_printf(MSG_DEBUG, "DPP: Try again with updated PFS policy");
5762 wpa_s->dpp_pfs_fallback = 1;
5763 wpas_connect_work_done(wpa_s);
5764 wpa_supplicant_mark_disassoc(wpa_s);
5765 wpa_supplicant_connect(wpa_s, bss, ssid);
5766 return;
5767 }
5768 #endif /* CONFIG_DPP2 */
5769
5770 #ifdef CONFIG_MBO
5771 if (data->assoc_reject.status_code ==
5772 WLAN_STATUS_DENIED_POOR_CHANNEL_CONDITIONS &&
5773 reject_bss && data->assoc_reject.resp_ies) {
5774 const u8 *rssi_rej;
5775
5776 rssi_rej = mbo_get_attr_from_ies(
5777 data->assoc_reject.resp_ies,
5778 data->assoc_reject.resp_ies_len,
5779 OCE_ATTR_ID_RSSI_BASED_ASSOC_REJECT);
5780 if (rssi_rej && rssi_rej[1] == 2) {
5781 wpa_printf(MSG_DEBUG,
5782 "OCE: RSSI-based association rejection from "
5783 MACSTR " (Delta RSSI: %u, Retry Delay: %u)",
5784 MAC2STR(reject_bss->bssid),
5785 rssi_rej[2], rssi_rej[3]);
5786 wpa_bss_tmp_disallow(wpa_s,
5787 reject_bss->bssid,
5788 rssi_rej[3],
5789 rssi_rej[2] + reject_bss->level);
5790 }
5791 }
5792 #endif /* CONFIG_MBO */
5793
5794 /* Check for other failed links in the response */
5795 os_memset(link_bssids, 0, sizeof(link_bssids));
5796 if (ieee802_11_parse_elems(data->assoc_reject.resp_ies,
5797 data->assoc_reject.resp_ies_len,
5798 &elems, 1) != ParseFailed) {
5799 unsigned int n_links, i, idx;
5800
5801 idx = 0;
5802 n_links = wpas_ml_parse_assoc(wpa_s, &elems, ml_info);
5803
5804 for (i = 1; i < n_links; i++) {
5805 /* The status cannot be success here.
5806 * Add the link to the failed list if it is reporting
5807 * an error. The only valid "non-error" status is
5808 * TX_LINK_NOT_ACCEPTED as that means this link may
5809 * still accept an association from us.
5810 */
5811 if (ml_info[i].status !=
5812 WLAN_STATUS_DENIED_TX_LINK_NOT_ACCEPTED) {
5813 link_bssids[idx] = ml_info[i].bssid;
5814 idx++;
5815 }
5816 }
5817 }
5818
5819 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
5820 sme_event_assoc_reject(wpa_s, data, link_bssids);
5821 return;
5822 }
5823
5824 /* Driver-based SME cases */
5825
5826 #ifdef CONFIG_SAE
5827 if (wpa_s->current_ssid &&
5828 wpa_key_mgmt_sae(wpa_s->current_ssid->key_mgmt) &&
5829 !data->assoc_reject.timed_out) {
5830 wpa_dbg(wpa_s, MSG_DEBUG, "SAE: Drop PMKSA cache entry");
5831 wpa_sm_aborted_cached(wpa_s->wpa);
5832 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
5833 }
5834 #endif /* CONFIG_SAE */
5835
5836 #ifdef CONFIG_DPP
5837 if (wpa_s->current_ssid &&
5838 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP &&
5839 !data->assoc_reject.timed_out) {
5840 wpa_dbg(wpa_s, MSG_DEBUG, "DPP: Drop PMKSA cache entry");
5841 wpa_sm_aborted_cached(wpa_s->wpa);
5842 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
5843 }
5844 #endif /* CONFIG_DPP */
5845
5846 #ifdef CONFIG_FILS
5847 /* Update ERP next sequence number */
5848 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
5849 fils_pmksa_cache_flush(wpa_s);
5850 eapol_sm_update_erp_next_seq_num(
5851 wpa_s->eapol,
5852 data->assoc_reject.fils_erp_next_seq_num);
5853 fils_connection_failure(wpa_s);
5854 }
5855 #endif /* CONFIG_FILS */
5856
5857 wpas_connection_failed(wpa_s, bssid, link_bssids);
5858 wpa_supplicant_mark_disassoc(wpa_s);
5859 }
5860
5861
wpas_event_unprot_beacon(struct wpa_supplicant * wpa_s,struct unprot_beacon * data)5862 static void wpas_event_unprot_beacon(struct wpa_supplicant *wpa_s,
5863 struct unprot_beacon *data)
5864 {
5865 struct wpabuf *buf;
5866 int res;
5867
5868 if (!data || wpa_s->wpa_state != WPA_COMPLETED ||
5869 !ether_addr_equal(data->sa, wpa_s->bssid))
5870 return;
5871 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_UNPROT_BEACON MACSTR,
5872 MAC2STR(data->sa));
5873
5874 buf = wpabuf_alloc(4);
5875 if (!buf)
5876 return;
5877
5878 wpabuf_put_u8(buf, WLAN_ACTION_WNM);
5879 wpabuf_put_u8(buf, WNM_NOTIFICATION_REQ);
5880 wpabuf_put_u8(buf, 1); /* Dialog Token */
5881 wpabuf_put_u8(buf, WNM_NOTIF_TYPE_BEACON_PROTECTION_FAILURE);
5882
5883 res = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
5884 wpa_s->own_addr, wpa_s->bssid,
5885 wpabuf_head(buf), wpabuf_len(buf), 0);
5886 if (res < 0)
5887 wpa_printf(MSG_DEBUG,
5888 "Failed to send WNM-Notification Request frame");
5889
5890 wpabuf_free(buf);
5891 }
5892
5893
bitmap_to_str(u8 value,char * buf)5894 static const char * bitmap_to_str(u8 value, char *buf)
5895 {
5896 char *pos = buf;
5897 int i, k = 0;
5898
5899 for (i = 7; i >= 0; i--)
5900 pos[k++] = (value & BIT(i)) ? '1' : '0';
5901
5902 pos[8] = '\0';
5903 return pos;
5904 }
5905
5906
wpas_tid_link_map(struct wpa_supplicant * wpa_s,struct tid_link_map_info * info)5907 static void wpas_tid_link_map(struct wpa_supplicant *wpa_s,
5908 struct tid_link_map_info *info)
5909 {
5910 char map_info[1000], *pos, *end;
5911 int res, i;
5912
5913 pos = map_info;
5914 end = pos + sizeof(map_info);
5915 res = os_snprintf(map_info, sizeof(map_info), "default=%d",
5916 info->default_map);
5917 if (os_snprintf_error(end - pos, res))
5918 return;
5919 pos += res;
5920
5921 if (!info->default_map) {
5922 for_each_link(info->valid_links, i) {
5923 char uplink_map_str[9];
5924 char downlink_map_str[9];
5925
5926 bitmap_to_str(info->t2lmap[i].uplink, uplink_map_str);
5927 bitmap_to_str(info->t2lmap[i].downlink,
5928 downlink_map_str);
5929
5930 res = os_snprintf(pos, end - pos,
5931 " link_id=%d up_link=%s down_link=%s",
5932 i, uplink_map_str,
5933 downlink_map_str);
5934 if (os_snprintf_error(end - pos, res))
5935 return;
5936 pos += res;
5937 }
5938 }
5939
5940 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_T2LM_UPDATE "%s", map_info);
5941 }
5942
5943
wpas_link_reconfig(struct wpa_supplicant * wpa_s)5944 static void wpas_link_reconfig(struct wpa_supplicant *wpa_s)
5945 {
5946 u8 bssid[ETH_ALEN];
5947
5948 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
5949 wpa_printf(MSG_ERROR, "LINK_RECONFIG: Failed to get BSSID");
5950 wpa_supplicant_deauthenticate(wpa_s,
5951 WLAN_REASON_DEAUTH_LEAVING);
5952 return;
5953 }
5954
5955 if (!ether_addr_equal(bssid, wpa_s->bssid)) {
5956 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
5957 wpa_supplicant_update_current_bss(wpa_s, wpa_s->bssid);
5958 wpas_notify_bssid_changed(wpa_s);
5959 }
5960
5961 if (wpa_drv_get_mlo_info(wpa_s) < 0) {
5962 wpa_printf(MSG_ERROR,
5963 "LINK_RECONFIG: Failed to get MLO connection info");
5964 wpa_supplicant_deauthenticate(wpa_s,
5965 WLAN_REASON_DEAUTH_LEAVING);
5966 return;
5967 }
5968
5969 if (wpa_sm_set_ml_info(wpa_s)) {
5970 wpa_printf(MSG_ERROR,
5971 "LINK_RECONFIG: Failed to set MLO connection info to wpa_sm");
5972 wpa_supplicant_deauthenticate(wpa_s,
5973 WLAN_REASON_DEAUTH_LEAVING);
5974 return;
5975 }
5976
5977 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_LINK_RECONFIG "valid_links=0x%x",
5978 wpa_s->valid_links);
5979 }
5980
5981
wpa_supplicant_event(void * ctx,enum wpa_event_type event,union wpa_event_data * data)5982 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
5983 union wpa_event_data *data)
5984 {
5985 struct wpa_supplicant *wpa_s = ctx;
5986 int resched;
5987 struct os_reltime age, clear_at;
5988 #ifndef CONFIG_NO_STDOUT_DEBUG
5989 int level = MSG_DEBUG;
5990 #endif /* CONFIG_NO_STDOUT_DEBUG */
5991
5992 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
5993 event != EVENT_INTERFACE_ENABLED &&
5994 event != EVENT_INTERFACE_STATUS &&
5995 event != EVENT_SCAN_RESULTS &&
5996 event != EVENT_SCHED_SCAN_STOPPED) {
5997 wpa_dbg(wpa_s, MSG_DEBUG,
5998 "Ignore event %s (%d) while interface is disabled",
5999 event_to_string(event), event);
6000 return;
6001 }
6002
6003 #ifndef CONFIG_NO_STDOUT_DEBUG
6004 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
6005 const struct ieee80211_hdr *hdr;
6006 u16 fc;
6007 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
6008 fc = le_to_host16(hdr->frame_control);
6009 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
6010 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
6011 level = MSG_EXCESSIVE;
6012 }
6013
6014 wpa_dbg(wpa_s, level, "Event %s (%d) received",
6015 event_to_string(event), event);
6016 #endif /* CONFIG_NO_STDOUT_DEBUG */
6017
6018 switch (event) {
6019 case EVENT_AUTH:
6020 #ifdef CONFIG_FST
6021 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
6022 data->auth.ies_len))
6023 wpa_printf(MSG_DEBUG,
6024 "FST: MB IEs updated from auth IE");
6025 #endif /* CONFIG_FST */
6026 sme_event_auth(wpa_s, data);
6027 wpa_s->auth_status_code = data->auth.status_code;
6028 wpas_notify_auth_status_code(wpa_s);
6029 break;
6030 case EVENT_ASSOC:
6031 #ifdef CONFIG_TESTING_OPTIONS
6032 if (wpa_s->ignore_auth_resp) {
6033 wpa_printf(MSG_INFO,
6034 "EVENT_ASSOC - ignore_auth_resp active!");
6035 break;
6036 }
6037 if (wpa_s->testing_resend_assoc) {
6038 wpa_printf(MSG_INFO,
6039 "EVENT_DEAUTH - testing_resend_assoc");
6040 break;
6041 }
6042 #endif /* CONFIG_TESTING_OPTIONS */
6043 if (wpa_s->disconnected) {
6044 wpa_printf(MSG_INFO,
6045 "Ignore unexpected EVENT_ASSOC in disconnected state");
6046 break;
6047 }
6048 wpa_supplicant_event_assoc(wpa_s, data);
6049 wpa_s->assoc_status_code = WLAN_STATUS_SUCCESS;
6050 if (data &&
6051 (data->assoc_info.authorized ||
6052 (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
6053 wpa_fils_is_completed(wpa_s->wpa))))
6054 wpa_supplicant_event_assoc_auth(wpa_s, data);
6055 if (data) {
6056 wpa_msg(wpa_s, MSG_INFO,
6057 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
6058 data->assoc_info.subnet_status);
6059 }
6060 break;
6061 case EVENT_DISASSOC:
6062 wpas_event_disassoc(wpa_s,
6063 data ? &data->disassoc_info : NULL);
6064 break;
6065 case EVENT_DEAUTH:
6066 #ifdef CONFIG_TESTING_OPTIONS
6067 if (wpa_s->ignore_auth_resp) {
6068 wpa_printf(MSG_INFO,
6069 "EVENT_DEAUTH - ignore_auth_resp active!");
6070 break;
6071 }
6072 if (wpa_s->testing_resend_assoc) {
6073 wpa_printf(MSG_INFO,
6074 "EVENT_DEAUTH - testing_resend_assoc");
6075 break;
6076 }
6077 #endif /* CONFIG_TESTING_OPTIONS */
6078 wpas_event_deauth(wpa_s,
6079 data ? &data->deauth_info : NULL);
6080 break;
6081 case EVENT_LINK_RECONFIG:
6082 wpas_link_reconfig(wpa_s);
6083 break;
6084 case EVENT_MICHAEL_MIC_FAILURE:
6085 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
6086 break;
6087 #ifndef CONFIG_NO_SCAN_PROCESSING
6088 case EVENT_SCAN_STARTED:
6089 if (wpa_s->own_scan_requested ||
6090 (data && !data->scan_info.external_scan)) {
6091 struct os_reltime diff;
6092
6093 os_get_reltime(&wpa_s->scan_start_time);
6094 os_reltime_sub(&wpa_s->scan_start_time,
6095 &wpa_s->scan_trigger_time, &diff);
6096 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %jd.%06ld seconds",
6097 (intmax_t)diff.sec, (long)diff.usec);
6098 wpa_s->own_scan_requested = 0;
6099 wpa_s->own_scan_running = 1;
6100 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
6101 wpa_s->manual_scan_use_id) {
6102 wpa_msg_ctrl(wpa_s, MSG_INFO,
6103 WPA_EVENT_SCAN_STARTED "id=%u",
6104 wpa_s->manual_scan_id);
6105 } else {
6106 wpa_msg_ctrl(wpa_s, MSG_INFO,
6107 WPA_EVENT_SCAN_STARTED);
6108 }
6109 } else {
6110 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
6111 wpa_s->radio->external_scan_req_interface = wpa_s;
6112 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
6113 }
6114 break;
6115 case EVENT_SCAN_RESULTS:
6116 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
6117 wpa_s->scan_res_handler = NULL;
6118 wpa_s->own_scan_running = 0;
6119 wpa_s->radio->external_scan_req_interface = NULL;
6120 wpa_s->last_scan_req = NORMAL_SCAN_REQ;
6121 break;
6122 }
6123
6124 if (!(data && data->scan_info.external_scan) &&
6125 os_reltime_initialized(&wpa_s->scan_start_time)) {
6126 struct os_reltime now, diff;
6127 os_get_reltime(&now);
6128 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
6129 wpa_s->scan_start_time.sec = 0;
6130 wpa_s->scan_start_time.usec = 0;
6131 wpa_s->wps_scan_done = true;
6132 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %jd.%06ld seconds",
6133 (intmax_t)diff.sec, (long)diff.usec);
6134 }
6135 if (wpa_supplicant_event_scan_results(wpa_s, data))
6136 break; /* interface may have been removed */
6137 if (!(data && data->scan_info.external_scan))
6138 wpa_s->own_scan_running = 0;
6139 if (data && data->scan_info.nl_scan_event)
6140 wpa_s->radio->external_scan_req_interface = NULL;
6141 radio_work_check_next(wpa_s);
6142 break;
6143 #endif /* CONFIG_NO_SCAN_PROCESSING */
6144 case EVENT_ASSOCINFO:
6145 wpa_supplicant_event_associnfo(wpa_s, data);
6146 break;
6147 case EVENT_INTERFACE_STATUS:
6148 wpa_supplicant_event_interface_status(wpa_s, data);
6149 break;
6150 case EVENT_PMKID_CANDIDATE:
6151 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
6152 break;
6153 #ifdef CONFIG_TDLS
6154 case EVENT_TDLS:
6155 wpa_supplicant_event_tdls(wpa_s, data);
6156 break;
6157 #endif /* CONFIG_TDLS */
6158 #ifdef CONFIG_WNM
6159 case EVENT_WNM:
6160 wpa_supplicant_event_wnm(wpa_s, data);
6161 break;
6162 #endif /* CONFIG_WNM */
6163 #ifdef CONFIG_IEEE80211R
6164 case EVENT_FT_RESPONSE:
6165 wpa_supplicant_event_ft_response(wpa_s, data);
6166 break;
6167 #endif /* CONFIG_IEEE80211R */
6168 #ifdef CONFIG_IBSS_RSN
6169 case EVENT_IBSS_RSN_START:
6170 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
6171 break;
6172 #endif /* CONFIG_IBSS_RSN */
6173 case EVENT_ASSOC_REJECT:
6174 wpas_event_assoc_reject(wpa_s, data);
6175 break;
6176 case EVENT_AUTH_TIMED_OUT:
6177 /* It is possible to get this event from earlier connection */
6178 if (wpa_s->current_ssid &&
6179 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
6180 wpa_dbg(wpa_s, MSG_DEBUG,
6181 "Ignore AUTH_TIMED_OUT in mesh configuration");
6182 break;
6183 }
6184 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
6185 sme_event_auth_timed_out(wpa_s, data);
6186 break;
6187 case EVENT_ASSOC_TIMED_OUT:
6188 /* It is possible to get this event from earlier connection */
6189 if (wpa_s->current_ssid &&
6190 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
6191 wpa_dbg(wpa_s, MSG_DEBUG,
6192 "Ignore ASSOC_TIMED_OUT in mesh configuration");
6193 break;
6194 }
6195 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
6196 sme_event_assoc_timed_out(wpa_s, data);
6197 break;
6198 case EVENT_TX_STATUS:
6199 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
6200 " type=%d stype=%d",
6201 MAC2STR(data->tx_status.dst),
6202 data->tx_status.type, data->tx_status.stype);
6203 #ifdef CONFIG_WNM
6204 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
6205 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
6206 wnm_btm_resp_tx_status(wpa_s, data->tx_status.data,
6207 data->tx_status.data_len) == 0)
6208 break;
6209 #endif /* CONFIG_WNM */
6210 #ifdef CONFIG_PASN
6211 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
6212 data->tx_status.stype == WLAN_FC_STYPE_AUTH &&
6213 wpas_pasn_auth_tx_status(wpa_s, data->tx_status.data,
6214 data->tx_status.data_len,
6215 data->tx_status.ack) == 0)
6216 break;
6217 #endif /* CONFIG_PASN */
6218 #ifdef CONFIG_AP
6219 if (wpa_s->ap_iface == NULL) {
6220 #ifdef CONFIG_OFFCHANNEL
6221 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
6222 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
6223 offchannel_send_action_tx_status(
6224 wpa_s, data->tx_status.dst,
6225 data->tx_status.data,
6226 data->tx_status.data_len,
6227 data->tx_status.ack ?
6228 OFFCHANNEL_SEND_ACTION_SUCCESS :
6229 OFFCHANNEL_SEND_ACTION_NO_ACK);
6230 #endif /* CONFIG_OFFCHANNEL */
6231 break;
6232 }
6233 #endif /* CONFIG_AP */
6234 #ifdef CONFIG_OFFCHANNEL
6235 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
6236 MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
6237 /*
6238 * Catch TX status events for Action frames we sent via group
6239 * interface in GO mode, or via standalone AP interface.
6240 * Note, wpa_s->p2pdev will be the same as wpa_s->parent,
6241 * except when the primary interface is used as a GO interface
6242 * (for drivers which do not have group interface concurrency)
6243 */
6244 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
6245 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
6246 ether_addr_equal(wpa_s->p2pdev->pending_action_dst,
6247 data->tx_status.dst)) {
6248 offchannel_send_action_tx_status(
6249 wpa_s->p2pdev, data->tx_status.dst,
6250 data->tx_status.data,
6251 data->tx_status.data_len,
6252 data->tx_status.ack ?
6253 OFFCHANNEL_SEND_ACTION_SUCCESS :
6254 OFFCHANNEL_SEND_ACTION_NO_ACK);
6255 break;
6256 }
6257 #endif /* CONFIG_OFFCHANNEL */
6258 #ifdef CONFIG_AP
6259 switch (data->tx_status.type) {
6260 case WLAN_FC_TYPE_MGMT:
6261 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
6262 data->tx_status.data_len,
6263 data->tx_status.stype,
6264 data->tx_status.ack);
6265 break;
6266 case WLAN_FC_TYPE_DATA:
6267 ap_tx_status(wpa_s, data->tx_status.dst,
6268 data->tx_status.data,
6269 data->tx_status.data_len,
6270 data->tx_status.ack);
6271 break;
6272 }
6273 #endif /* CONFIG_AP */
6274 break;
6275 #ifdef CONFIG_AP
6276 case EVENT_EAPOL_TX_STATUS:
6277 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
6278 data->eapol_tx_status.data,
6279 data->eapol_tx_status.data_len,
6280 data->eapol_tx_status.ack);
6281 break;
6282 case EVENT_DRIVER_CLIENT_POLL_OK:
6283 ap_client_poll_ok(wpa_s, data->client_poll.addr);
6284 break;
6285 case EVENT_RX_FROM_UNKNOWN:
6286 if (wpa_s->ap_iface == NULL)
6287 break;
6288 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
6289 data->rx_from_unknown.wds);
6290 break;
6291 #endif /* CONFIG_AP */
6292
6293 case EVENT_LINK_CH_SWITCH_STARTED:
6294 case EVENT_LINK_CH_SWITCH:
6295 if (!data || !wpa_s->current_ssid ||
6296 !(wpa_s->valid_links & BIT(data->ch_switch.link_id)))
6297 break;
6298
6299 wpa_msg(wpa_s, MSG_INFO,
6300 "%sfreq=%d link_id=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
6301 event == EVENT_LINK_CH_SWITCH ?
6302 WPA_EVENT_LINK_CHANNEL_SWITCH :
6303 WPA_EVENT_LINK_CHANNEL_SWITCH_STARTED,
6304 data->ch_switch.freq,
6305 data->ch_switch.link_id,
6306 data->ch_switch.ht_enabled,
6307 data->ch_switch.ch_offset,
6308 channel_width_to_string(data->ch_switch.ch_width),
6309 data->ch_switch.cf1,
6310 data->ch_switch.cf2);
6311 if (event == EVENT_LINK_CH_SWITCH_STARTED)
6312 break;
6313
6314 wpa_s->links[data->ch_switch.link_id].freq =
6315 data->ch_switch.freq;
6316 if (wpa_s->links[data->ch_switch.link_id].bss &&
6317 wpa_s->links[data->ch_switch.link_id].bss->freq !=
6318 data->ch_switch.freq) {
6319 wpa_s->links[data->ch_switch.link_id].bss->freq =
6320 data->ch_switch.freq;
6321 notify_bss_changes(
6322 wpa_s, WPA_BSS_FREQ_CHANGED_FLAG,
6323 wpa_s->links[data->ch_switch.link_id].bss);
6324 }
6325 break;
6326 case EVENT_CH_SWITCH_STARTED:
6327 case EVENT_CH_SWITCH:
6328 if (!data || !wpa_s->current_ssid)
6329 break;
6330
6331 wpa_msg(wpa_s, MSG_INFO,
6332 "%sfreq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
6333 event == EVENT_CH_SWITCH ? WPA_EVENT_CHANNEL_SWITCH :
6334 WPA_EVENT_CHANNEL_SWITCH_STARTED,
6335 data->ch_switch.freq,
6336 data->ch_switch.ht_enabled,
6337 data->ch_switch.ch_offset,
6338 channel_width_to_string(data->ch_switch.ch_width),
6339 data->ch_switch.cf1,
6340 data->ch_switch.cf2);
6341 if (event == EVENT_CH_SWITCH_STARTED)
6342 break;
6343
6344 wpa_s->assoc_freq = data->ch_switch.freq;
6345 wpa_s->current_ssid->frequency = data->ch_switch.freq;
6346 if (wpa_s->current_bss &&
6347 wpa_s->current_bss->freq != data->ch_switch.freq) {
6348 wpa_s->current_bss->freq = data->ch_switch.freq;
6349 notify_bss_changes(wpa_s, WPA_BSS_FREQ_CHANGED_FLAG,
6350 wpa_s->current_bss);
6351 }
6352
6353 #ifdef CONFIG_SME
6354 switch (data->ch_switch.ch_offset) {
6355 case 1:
6356 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_ABOVE;
6357 break;
6358 case -1:
6359 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_BELOW;
6360 break;
6361 default:
6362 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_UNKNOWN;
6363 break;
6364 }
6365 #endif /* CONFIG_SME */
6366
6367 #ifdef CONFIG_AP
6368 if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
6369 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
6370 wpa_s->current_ssid->mode == WPAS_MODE_MESH ||
6371 wpa_s->current_ssid->mode ==
6372 WPAS_MODE_P2P_GROUP_FORMATION) {
6373 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
6374 data->ch_switch.ht_enabled,
6375 data->ch_switch.ch_offset,
6376 data->ch_switch.ch_width,
6377 data->ch_switch.cf1,
6378 data->ch_switch.cf2,
6379 data->ch_switch.punct_bitmap,
6380 1);
6381 }
6382 #endif /* CONFIG_AP */
6383
6384 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
6385 sme_event_ch_switch(wpa_s);
6386
6387 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
6388 wnm_clear_coloc_intf_reporting(wpa_s);
6389 break;
6390 #ifdef CONFIG_AP
6391 #ifdef NEED_AP_MLME
6392 case EVENT_DFS_RADAR_DETECTED:
6393 if (data)
6394 wpas_ap_event_dfs_radar_detected(wpa_s,
6395 &data->dfs_event);
6396 break;
6397 case EVENT_DFS_NOP_FINISHED:
6398 if (data)
6399 wpas_ap_event_dfs_cac_nop_finished(wpa_s,
6400 &data->dfs_event);
6401 break;
6402 #endif /* NEED_AP_MLME */
6403 #endif /* CONFIG_AP */
6404 case EVENT_DFS_CAC_STARTED:
6405 if (data)
6406 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
6407 break;
6408 case EVENT_DFS_CAC_FINISHED:
6409 if (data)
6410 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
6411 break;
6412 case EVENT_DFS_CAC_ABORTED:
6413 if (data)
6414 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
6415 break;
6416 case EVENT_RX_MGMT: {
6417 u16 fc, stype;
6418 const struct ieee80211_mgmt *mgmt;
6419
6420 #ifdef CONFIG_TESTING_OPTIONS
6421 if (wpa_s->ext_mgmt_frame_handling) {
6422 struct rx_mgmt *rx = &data->rx_mgmt;
6423 size_t hex_len = 2 * rx->frame_len + 1;
6424 char *hex = os_malloc(hex_len);
6425 if (hex) {
6426 wpa_snprintf_hex(hex, hex_len,
6427 rx->frame, rx->frame_len);
6428 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
6429 rx->freq, rx->datarate, rx->ssi_signal,
6430 hex);
6431 os_free(hex);
6432 }
6433 break;
6434 }
6435 #endif /* CONFIG_TESTING_OPTIONS */
6436
6437 mgmt = (const struct ieee80211_mgmt *)
6438 data->rx_mgmt.frame;
6439 fc = le_to_host16(mgmt->frame_control);
6440 stype = WLAN_FC_GET_STYPE(fc);
6441
6442 #ifdef CONFIG_AP
6443 if (wpa_s->ap_iface == NULL) {
6444 #endif /* CONFIG_AP */
6445 #ifdef CONFIG_P2P
6446 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
6447 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
6448 const u8 *src = mgmt->sa;
6449 const u8 *ie;
6450 size_t ie_len;
6451
6452 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
6453 ie_len = data->rx_mgmt.frame_len -
6454 IEEE80211_HDRLEN;
6455 wpas_p2p_probe_req_rx(
6456 wpa_s, src, mgmt->da,
6457 mgmt->bssid, ie, ie_len,
6458 data->rx_mgmt.freq,
6459 data->rx_mgmt.ssi_signal);
6460 break;
6461 }
6462 #endif /* CONFIG_P2P */
6463 #ifdef CONFIG_IBSS_RSN
6464 if (wpa_s->current_ssid &&
6465 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
6466 stype == WLAN_FC_STYPE_AUTH &&
6467 data->rx_mgmt.frame_len >= 30) {
6468 wpa_supplicant_event_ibss_auth(wpa_s, data);
6469 break;
6470 }
6471 #endif /* CONFIG_IBSS_RSN */
6472
6473 if (stype == WLAN_FC_STYPE_ACTION) {
6474 wpas_event_rx_mgmt_action(
6475 wpa_s, data->rx_mgmt.frame,
6476 data->rx_mgmt.frame_len,
6477 data->rx_mgmt.freq,
6478 data->rx_mgmt.ssi_signal);
6479 break;
6480 }
6481
6482 if (wpa_s->ifmsh) {
6483 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
6484 break;
6485 }
6486 #ifdef CONFIG_PASN
6487 if (stype == WLAN_FC_STYPE_AUTH &&
6488 wpas_pasn_auth_rx(wpa_s, mgmt,
6489 data->rx_mgmt.frame_len) != -2)
6490 break;
6491 #endif /* CONFIG_PASN */
6492
6493 #ifdef CONFIG_SAE
6494 if (stype == WLAN_FC_STYPE_AUTH &&
6495 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
6496 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE)) {
6497 sme_external_auth_mgmt_rx(
6498 wpa_s, data->rx_mgmt.frame,
6499 data->rx_mgmt.frame_len);
6500 break;
6501 }
6502 #endif /* CONFIG_SAE */
6503 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
6504 "management frame in non-AP mode");
6505 break;
6506 #ifdef CONFIG_AP
6507 }
6508
6509 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
6510 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
6511 const u8 *ie;
6512 size_t ie_len;
6513
6514 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
6515 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
6516
6517 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
6518 mgmt->bssid, ie, ie_len,
6519 data->rx_mgmt.ssi_signal);
6520 }
6521
6522 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
6523 #endif /* CONFIG_AP */
6524 break;
6525 }
6526 case EVENT_RX_PROBE_REQ:
6527 if (data->rx_probe_req.sa == NULL ||
6528 data->rx_probe_req.ie == NULL)
6529 break;
6530 #ifdef CONFIG_AP
6531 if (wpa_s->ap_iface) {
6532 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
6533 data->rx_probe_req.sa,
6534 data->rx_probe_req.da,
6535 data->rx_probe_req.bssid,
6536 data->rx_probe_req.ie,
6537 data->rx_probe_req.ie_len,
6538 data->rx_probe_req.ssi_signal);
6539 break;
6540 }
6541 #endif /* CONFIG_AP */
6542 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
6543 data->rx_probe_req.da,
6544 data->rx_probe_req.bssid,
6545 data->rx_probe_req.ie,
6546 data->rx_probe_req.ie_len,
6547 0,
6548 data->rx_probe_req.ssi_signal);
6549 break;
6550 case EVENT_REMAIN_ON_CHANNEL:
6551 #ifdef CONFIG_OFFCHANNEL
6552 offchannel_remain_on_channel_cb(
6553 wpa_s, data->remain_on_channel.freq,
6554 data->remain_on_channel.duration);
6555 #endif /* CONFIG_OFFCHANNEL */
6556 wpas_p2p_remain_on_channel_cb(
6557 wpa_s, data->remain_on_channel.freq,
6558 data->remain_on_channel.duration);
6559 #ifdef CONFIG_DPP
6560 wpas_dpp_remain_on_channel_cb(
6561 wpa_s, data->remain_on_channel.freq,
6562 data->remain_on_channel.duration);
6563 #endif /* CONFIG_DPP */
6564 #ifdef CONFIG_NAN_USD
6565 wpas_nan_usd_remain_on_channel_cb(
6566 wpa_s, data->remain_on_channel.freq,
6567 data->remain_on_channel.duration);
6568 #endif /* CONFIG_NAN_USD */
6569 break;
6570 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
6571 #ifdef CONFIG_OFFCHANNEL
6572 offchannel_cancel_remain_on_channel_cb(
6573 wpa_s, data->remain_on_channel.freq);
6574 #endif /* CONFIG_OFFCHANNEL */
6575 wpas_p2p_cancel_remain_on_channel_cb(
6576 wpa_s, data->remain_on_channel.freq);
6577 #ifdef CONFIG_DPP
6578 wpas_dpp_cancel_remain_on_channel_cb(
6579 wpa_s, data->remain_on_channel.freq);
6580 #endif /* CONFIG_DPP */
6581 #ifdef CONFIG_NAN_USD
6582 wpas_nan_usd_cancel_remain_on_channel_cb(
6583 wpa_s, data->remain_on_channel.freq);
6584 #endif /* CONFIG_NAN_USD */
6585 break;
6586 case EVENT_EAPOL_RX:
6587 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
6588 data->eapol_rx.data,
6589 data->eapol_rx.data_len,
6590 data->eapol_rx.encrypted);
6591 break;
6592 case EVENT_SIGNAL_CHANGE:
6593 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
6594 "above=%d signal=%d noise=%d txrate=%lu",
6595 data->signal_change.above_threshold,
6596 data->signal_change.data.signal,
6597 data->signal_change.current_noise,
6598 data->signal_change.data.current_tx_rate);
6599 wpa_bss_update_level(wpa_s->current_bss,
6600 data->signal_change.data.signal);
6601 bgscan_notify_signal_change(
6602 wpa_s, data->signal_change.above_threshold,
6603 data->signal_change.data.signal,
6604 data->signal_change.current_noise,
6605 data->signal_change.data.current_tx_rate);
6606 os_memcpy(&wpa_s->last_signal_info, data,
6607 sizeof(struct wpa_signal_info));
6608 wpas_notify_signal_change(wpa_s);
6609 break;
6610 case EVENT_INTERFACE_MAC_CHANGED:
6611 wpa_supplicant_update_mac_addr(wpa_s);
6612 wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
6613 break;
6614 case EVENT_INTERFACE_ENABLED:
6615 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
6616 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
6617 u8 addr[ETH_ALEN];
6618
6619 eloop_cancel_timeout(wpas_clear_disabled_interface,
6620 wpa_s, NULL);
6621 os_memcpy(addr, wpa_s->own_addr, ETH_ALEN);
6622 wpa_supplicant_update_mac_addr(wpa_s);
6623 if (!ether_addr_equal(addr, wpa_s->own_addr))
6624 wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
6625 else
6626 wpa_sm_pmksa_cache_reconfig(wpa_s->wpa);
6627 wpa_supplicant_set_default_scan_ies(wpa_s);
6628 if (wpa_s->p2p_mgmt) {
6629 wpa_supplicant_set_state(wpa_s,
6630 WPA_DISCONNECTED);
6631 break;
6632 }
6633
6634 #ifdef CONFIG_AP
6635 if (!wpa_s->ap_iface) {
6636 wpa_supplicant_set_state(wpa_s,
6637 WPA_DISCONNECTED);
6638 wpa_s->scan_req = NORMAL_SCAN_REQ;
6639 wpa_supplicant_req_scan(wpa_s, 0, 0);
6640 } else
6641 wpa_supplicant_set_state(wpa_s,
6642 WPA_COMPLETED);
6643 #else /* CONFIG_AP */
6644 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
6645 wpa_supplicant_req_scan(wpa_s, 0, 0);
6646 #endif /* CONFIG_AP */
6647 }
6648 break;
6649 case EVENT_INTERFACE_DISABLED:
6650 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
6651 #ifdef CONFIG_P2P
6652 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
6653 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
6654 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
6655 /*
6656 * Mark interface disabled if this happens to end up not
6657 * being removed as a separate P2P group interface.
6658 */
6659 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
6660 /*
6661 * The interface was externally disabled. Remove
6662 * it assuming an external entity will start a
6663 * new session if needed.
6664 */
6665 if (wpa_s->current_ssid &&
6666 wpa_s->current_ssid->p2p_group)
6667 wpas_p2p_interface_unavailable(wpa_s);
6668 else
6669 wpas_p2p_disconnect(wpa_s);
6670 /*
6671 * wpa_s instance may have been freed, so must not use
6672 * it here anymore.
6673 */
6674 break;
6675 }
6676 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
6677 p2p_in_progress(wpa_s->global->p2p) > 1) {
6678 /* This radio work will be cancelled, so clear P2P
6679 * state as well.
6680 */
6681 p2p_stop_find(wpa_s->global->p2p);
6682 }
6683 #endif /* CONFIG_P2P */
6684
6685 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
6686 /*
6687 * Indicate disconnection to keep ctrl_iface events
6688 * consistent.
6689 */
6690 wpa_supplicant_event_disassoc(
6691 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
6692 }
6693 wpa_supplicant_mark_disassoc(wpa_s);
6694 os_reltime_age(&wpa_s->last_scan, &age);
6695 if (age.sec >= wpa_s->conf->scan_res_valid_for_connect) {
6696 clear_at.sec = wpa_s->conf->scan_res_valid_for_connect;
6697 clear_at.usec = 0;
6698 } else {
6699 struct os_reltime tmp;
6700
6701 tmp.sec = wpa_s->conf->scan_res_valid_for_connect;
6702 tmp.usec = 0;
6703 os_reltime_sub(&tmp, &age, &clear_at);
6704 }
6705 eloop_register_timeout(clear_at.sec, clear_at.usec,
6706 wpas_clear_disabled_interface,
6707 wpa_s, NULL);
6708 radio_remove_works(wpa_s, NULL, 0);
6709
6710 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
6711 break;
6712 case EVENT_CHANNEL_LIST_CHANGED:
6713 wpa_supplicant_update_channel_list(
6714 wpa_s, &data->channel_list_changed);
6715 break;
6716 case EVENT_INTERFACE_UNAVAILABLE:
6717 wpas_p2p_interface_unavailable(wpa_s);
6718 break;
6719 case EVENT_BEST_CHANNEL:
6720 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
6721 "(%d %d %d)",
6722 data->best_chan.freq_24, data->best_chan.freq_5,
6723 data->best_chan.freq_overall);
6724 wpa_s->best_24_freq = data->best_chan.freq_24;
6725 wpa_s->best_5_freq = data->best_chan.freq_5;
6726 wpa_s->best_overall_freq = data->best_chan.freq_overall;
6727 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
6728 data->best_chan.freq_5,
6729 data->best_chan.freq_overall);
6730 break;
6731 case EVENT_UNPROT_DEAUTH:
6732 wpa_supplicant_event_unprot_deauth(wpa_s,
6733 &data->unprot_deauth);
6734 break;
6735 case EVENT_UNPROT_DISASSOC:
6736 wpa_supplicant_event_unprot_disassoc(wpa_s,
6737 &data->unprot_disassoc);
6738 break;
6739 case EVENT_STATION_LOW_ACK:
6740 #ifdef CONFIG_AP
6741 if (wpa_s->ap_iface && data)
6742 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
6743 data->low_ack.addr);
6744 #endif /* CONFIG_AP */
6745 #ifdef CONFIG_TDLS
6746 if (data)
6747 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
6748 data->low_ack.addr);
6749 #endif /* CONFIG_TDLS */
6750 break;
6751 case EVENT_IBSS_PEER_LOST:
6752 #ifdef CONFIG_IBSS_RSN
6753 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
6754 #endif /* CONFIG_IBSS_RSN */
6755 break;
6756 case EVENT_DRIVER_GTK_REKEY:
6757 if (!ether_addr_equal(data->driver_gtk_rekey.bssid,
6758 wpa_s->bssid))
6759 break;
6760 if (!wpa_s->wpa)
6761 break;
6762 wpa_sm_update_replay_ctr(wpa_s->wpa,
6763 data->driver_gtk_rekey.replay_ctr);
6764 break;
6765 case EVENT_SCHED_SCAN_STOPPED:
6766 wpa_s->sched_scanning = 0;
6767 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
6768 wpa_supplicant_notify_scanning(wpa_s, 0);
6769
6770 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
6771 break;
6772
6773 /*
6774 * If the driver stopped scanning without being requested to,
6775 * request a new scan to continue scanning for networks.
6776 */
6777 if (!wpa_s->sched_scan_stop_req &&
6778 wpa_s->wpa_state == WPA_SCANNING) {
6779 wpa_dbg(wpa_s, MSG_DEBUG,
6780 "Restart scanning after unexpected sched_scan stop event");
6781 wpa_supplicant_req_scan(wpa_s, 1, 0);
6782 break;
6783 }
6784
6785 wpa_s->sched_scan_stop_req = 0;
6786
6787 /*
6788 * Start a new sched scan to continue searching for more SSIDs
6789 * either if timed out or PNO schedule scan is pending.
6790 */
6791 if (wpa_s->sched_scan_timed_out) {
6792 wpa_supplicant_req_sched_scan(wpa_s);
6793 } else if (wpa_s->pno_sched_pending) {
6794 wpa_s->pno_sched_pending = 0;
6795 wpas_start_pno(wpa_s);
6796 } else if (resched) {
6797 wpa_supplicant_req_scan(wpa_s, 0, 0);
6798 }
6799
6800 break;
6801 case EVENT_WPS_BUTTON_PUSHED:
6802 #ifdef CONFIG_WPS
6803 wpas_wps_start_pbc(wpa_s, NULL, 0, 0);
6804 #endif /* CONFIG_WPS */
6805 break;
6806 case EVENT_AVOID_FREQUENCIES:
6807 wpa_supplicant_notify_avoid_freq(wpa_s, data);
6808 break;
6809 case EVENT_CONNECT_FAILED_REASON:
6810 #ifdef CONFIG_AP
6811 if (!wpa_s->ap_iface || !data)
6812 break;
6813 hostapd_event_connect_failed_reason(
6814 wpa_s->ap_iface->bss[0],
6815 data->connect_failed_reason.addr,
6816 data->connect_failed_reason.code);
6817 #endif /* CONFIG_AP */
6818 break;
6819 case EVENT_NEW_PEER_CANDIDATE:
6820 #ifdef CONFIG_MESH
6821 if (!wpa_s->ifmsh || !data)
6822 break;
6823 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
6824 data->mesh_peer.ies,
6825 data->mesh_peer.ie_len);
6826 #endif /* CONFIG_MESH */
6827 break;
6828 case EVENT_SURVEY:
6829 #ifdef CONFIG_AP
6830 if (!wpa_s->ap_iface)
6831 break;
6832 hostapd_event_get_survey(wpa_s->ap_iface,
6833 &data->survey_results);
6834 #endif /* CONFIG_AP */
6835 break;
6836 case EVENT_ACS_CHANNEL_SELECTED:
6837 #ifdef CONFIG_AP
6838 #ifdef CONFIG_ACS
6839 if (!wpa_s->ap_iface)
6840 break;
6841 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
6842 &data->acs_selected_channels);
6843 #endif /* CONFIG_ACS */
6844 #endif /* CONFIG_AP */
6845 break;
6846 case EVENT_P2P_LO_STOP:
6847 #ifdef CONFIG_P2P
6848 wpa_s->p2p_lo_started = 0;
6849 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP
6850 P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d",
6851 data->p2p_lo_stop.reason_code);
6852 #endif /* CONFIG_P2P */
6853 break;
6854 case EVENT_BEACON_LOSS:
6855 if (!wpa_s->current_bss || !wpa_s->current_ssid)
6856 break;
6857 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_BEACON_LOSS);
6858 bgscan_notify_beacon_loss(wpa_s);
6859 break;
6860 case EVENT_EXTERNAL_AUTH:
6861 #ifdef CONFIG_SAE
6862 if (!wpa_s->current_ssid) {
6863 wpa_printf(MSG_DEBUG, "SAE: current_ssid is NULL");
6864 break;
6865 }
6866 sme_external_auth_trigger(wpa_s, data);
6867 #endif /* CONFIG_SAE */
6868 break;
6869 #ifdef CONFIG_PASN
6870 case EVENT_PASN_AUTH:
6871 wpas_pasn_auth_trigger(wpa_s, &data->pasn_auth);
6872 break;
6873 #endif /* CONFIG_PASN */
6874 case EVENT_PORT_AUTHORIZED:
6875 #ifdef CONFIG_AP
6876 if (wpa_s->ap_iface && wpa_s->ap_iface->bss[0]) {
6877 struct sta_info *sta;
6878
6879 sta = ap_get_sta(wpa_s->ap_iface->bss[0],
6880 data->port_authorized.sta_addr);
6881 if (sta)
6882 ap_sta_set_authorized(wpa_s->ap_iface->bss[0],
6883 sta, 1);
6884 else
6885 wpa_printf(MSG_DEBUG,
6886 "No STA info matching port authorized event found");
6887 break;
6888 }
6889 #endif /* CONFIG_AP */
6890 #ifndef CONFIG_NO_WPA
6891 if (data->port_authorized.td_bitmap_len) {
6892 wpa_printf(MSG_DEBUG,
6893 "WPA3: Transition Disable bitmap from the driver event: 0x%x",
6894 data->port_authorized.td_bitmap[0]);
6895 wpas_transition_disable(
6896 wpa_s, data->port_authorized.td_bitmap[0]);
6897 }
6898 #endif /* CONFIG_NO_WPA */
6899 wpa_supplicant_event_port_authorized(wpa_s);
6900 break;
6901 case EVENT_STATION_OPMODE_CHANGED:
6902 #ifdef CONFIG_AP
6903 if (!wpa_s->ap_iface || !data)
6904 break;
6905
6906 hostapd_event_sta_opmode_changed(wpa_s->ap_iface->bss[0],
6907 data->sta_opmode.addr,
6908 data->sta_opmode.smps_mode,
6909 data->sta_opmode.chan_width,
6910 data->sta_opmode.rx_nss);
6911 #endif /* CONFIG_AP */
6912 break;
6913 case EVENT_UNPROT_BEACON:
6914 wpas_event_unprot_beacon(wpa_s, &data->unprot_beacon);
6915 break;
6916 case EVENT_TX_WAIT_EXPIRE:
6917 #ifdef CONFIG_DPP
6918 wpas_dpp_tx_wait_expire(wpa_s);
6919 #endif /* CONFIG_DPP */
6920 #ifdef CONFIG_NAN_USD
6921 wpas_nan_usd_tx_wait_expire(wpa_s);
6922 #endif /* CONFIG_NAN_USD */
6923 break;
6924 case EVENT_TID_LINK_MAP:
6925 if (data)
6926 wpas_tid_link_map(wpa_s, &data->t2l_map_info);
6927 break;
6928 default:
6929 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
6930 break;
6931 }
6932 }
6933
6934
wpa_supplicant_event_global(void * ctx,enum wpa_event_type event,union wpa_event_data * data)6935 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
6936 union wpa_event_data *data)
6937 {
6938 struct wpa_supplicant *wpa_s;
6939
6940 if (event != EVENT_INTERFACE_STATUS)
6941 return;
6942
6943 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
6944 if (wpa_s && wpa_s->driver->get_ifindex) {
6945 unsigned int ifindex;
6946
6947 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
6948 if (ifindex != data->interface_status.ifindex) {
6949 wpa_dbg(wpa_s, MSG_DEBUG,
6950 "interface status ifindex %d mismatch (%d)",
6951 ifindex, data->interface_status.ifindex);
6952 return;
6953 }
6954 }
6955 #ifdef CONFIG_MATCH_IFACE
6956 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
6957 struct wpa_interface *wpa_i;
6958
6959 wpa_i = wpa_supplicant_match_iface(
6960 ctx, data->interface_status.ifname);
6961 if (!wpa_i)
6962 return;
6963 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
6964 os_free(wpa_i);
6965 }
6966 #endif /* CONFIG_MATCH_IFACE */
6967
6968 if (wpa_s)
6969 wpa_supplicant_event(wpa_s, event, data);
6970 }
6971