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DPP2: Allow station to require or not allow PFS
[thirdparty/hostap.git] / wpa_supplicant / events.c
1 /*
2 * WPA Supplicant - Driver event processing
3 * Copyright (c) 2003-2019, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "includes.h"
10
11 #include "common.h"
12 #include "eapol_supp/eapol_supp_sm.h"
13 #include "rsn_supp/wpa.h"
14 #include "eloop.h"
15 #include "config.h"
16 #include "l2_packet/l2_packet.h"
17 #include "wpa_supplicant_i.h"
18 #include "driver_i.h"
19 #include "pcsc_funcs.h"
20 #include "rsn_supp/preauth.h"
21 #include "rsn_supp/pmksa_cache.h"
22 #include "common/wpa_ctrl.h"
23 #include "eap_peer/eap.h"
24 #include "ap/hostapd.h"
25 #include "p2p/p2p.h"
26 #include "fst/fst.h"
27 #include "wnm_sta.h"
28 #include "notify.h"
29 #include "common/ieee802_11_defs.h"
30 #include "common/ieee802_11_common.h"
31 #include "common/gas_server.h"
32 #include "common/dpp.h"
33 #include "crypto/random.h"
34 #include "blacklist.h"
35 #include "wpas_glue.h"
36 #include "wps_supplicant.h"
37 #include "ibss_rsn.h"
38 #include "sme.h"
39 #include "gas_query.h"
40 #include "p2p_supplicant.h"
41 #include "bgscan.h"
42 #include "autoscan.h"
43 #include "ap.h"
44 #include "bss.h"
45 #include "scan.h"
46 #include "offchannel.h"
47 #include "interworking.h"
48 #include "mesh.h"
49 #include "mesh_mpm.h"
50 #include "wmm_ac.h"
51 #include "dpp_supplicant.h"
52
53
54 #define MAX_OWE_TRANSITION_BSS_SELECT_COUNT 5
55
56
57 #ifndef CONFIG_NO_SCAN_PROCESSING
58 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
59 int new_scan, int own_request);
60 #endif /* CONFIG_NO_SCAN_PROCESSING */
61
62
63 int wpas_temp_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
64 {
65 struct os_reltime now;
66
67 if (ssid == NULL || ssid->disabled_until.sec == 0)
68 return 0;
69
70 os_get_reltime(&now);
71 if (ssid->disabled_until.sec > now.sec)
72 return ssid->disabled_until.sec - now.sec;
73
74 wpas_clear_temp_disabled(wpa_s, ssid, 0);
75
76 return 0;
77 }
78
79
80 #ifndef CONFIG_NO_SCAN_PROCESSING
81 /**
82 * wpas_reenabled_network_time - Time until first network is re-enabled
83 * @wpa_s: Pointer to wpa_supplicant data
84 * Returns: If all enabled networks are temporarily disabled, returns the time
85 * (in sec) until the first network is re-enabled. Otherwise returns 0.
86 *
87 * This function is used in case all enabled networks are temporarily disabled,
88 * in which case it returns the time (in sec) that the first network will be
89 * re-enabled. The function assumes that at least one network is enabled.
90 */
91 static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
92 {
93 struct wpa_ssid *ssid;
94 int disabled_for, res = 0;
95
96 #ifdef CONFIG_INTERWORKING
97 if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
98 wpa_s->conf->cred)
99 return 0;
100 #endif /* CONFIG_INTERWORKING */
101
102 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
103 if (ssid->disabled)
104 continue;
105
106 disabled_for = wpas_temp_disabled(wpa_s, ssid);
107 if (!disabled_for)
108 return 0;
109
110 if (!res || disabled_for < res)
111 res = disabled_for;
112 }
113
114 return res;
115 }
116 #endif /* CONFIG_NO_SCAN_PROCESSING */
117
118
119 void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
120 {
121 struct wpa_supplicant *wpa_s = eloop_ctx;
122
123 if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
124 return;
125
126 wpa_dbg(wpa_s, MSG_DEBUG,
127 "Try to associate due to network getting re-enabled");
128 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
129 wpa_supplicant_cancel_sched_scan(wpa_s);
130 wpa_supplicant_req_scan(wpa_s, 0, 0);
131 }
132 }
133
134
135 static struct wpa_bss * wpa_supplicant_get_new_bss(
136 struct wpa_supplicant *wpa_s, const u8 *bssid)
137 {
138 struct wpa_bss *bss = NULL;
139 struct wpa_ssid *ssid = wpa_s->current_ssid;
140
141 if (ssid->ssid_len > 0)
142 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
143 if (!bss)
144 bss = wpa_bss_get_bssid(wpa_s, bssid);
145
146 return bss;
147 }
148
149
150 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
151 {
152 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
153
154 if (!bss) {
155 wpa_supplicant_update_scan_results(wpa_s);
156
157 /* Get the BSS from the new scan results */
158 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
159 }
160
161 if (bss)
162 wpa_s->current_bss = bss;
163 }
164
165
166 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
167 {
168 struct wpa_ssid *ssid, *old_ssid;
169 u8 drv_ssid[SSID_MAX_LEN];
170 size_t drv_ssid_len;
171 int res;
172
173 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
174 wpa_supplicant_update_current_bss(wpa_s);
175
176 if (wpa_s->current_ssid->ssid_len == 0)
177 return 0; /* current profile still in use */
178 res = wpa_drv_get_ssid(wpa_s, drv_ssid);
179 if (res < 0) {
180 wpa_msg(wpa_s, MSG_INFO,
181 "Failed to read SSID from driver");
182 return 0; /* try to use current profile */
183 }
184 drv_ssid_len = res;
185
186 if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
187 os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
188 drv_ssid_len) == 0)
189 return 0; /* current profile still in use */
190
191 #ifdef CONFIG_OWE
192 if ((wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
193 wpa_s->current_bss &&
194 (wpa_s->current_bss->flags & WPA_BSS_OWE_TRANSITION) &&
195 drv_ssid_len == wpa_s->current_bss->ssid_len &&
196 os_memcmp(drv_ssid, wpa_s->current_bss->ssid,
197 drv_ssid_len) == 0)
198 return 0; /* current profile still in use */
199 #endif /* CONFIG_OWE */
200
201 wpa_msg(wpa_s, MSG_DEBUG,
202 "Driver-initiated BSS selection changed the SSID to %s",
203 wpa_ssid_txt(drv_ssid, drv_ssid_len));
204 /* continue selecting a new network profile */
205 }
206
207 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
208 "information");
209 ssid = wpa_supplicant_get_ssid(wpa_s);
210 if (ssid == NULL) {
211 wpa_msg(wpa_s, MSG_INFO,
212 "No network configuration found for the current AP");
213 return -1;
214 }
215
216 if (wpas_network_disabled(wpa_s, ssid)) {
217 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
218 return -1;
219 }
220
221 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
222 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
223 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
224 return -1;
225 }
226
227 res = wpas_temp_disabled(wpa_s, ssid);
228 if (res > 0) {
229 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
230 "disabled for %d second(s)", res);
231 return -1;
232 }
233
234 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
235 "current AP");
236 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
237 u8 wpa_ie[80];
238 size_t wpa_ie_len = sizeof(wpa_ie);
239 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
240 wpa_ie, &wpa_ie_len) < 0)
241 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
242 } else {
243 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
244 }
245
246 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
247 eapol_sm_invalidate_cached_session(wpa_s->eapol);
248 old_ssid = wpa_s->current_ssid;
249 wpa_s->current_ssid = ssid;
250
251 wpa_supplicant_update_current_bss(wpa_s);
252
253 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
254 wpa_supplicant_initiate_eapol(wpa_s);
255 if (old_ssid != wpa_s->current_ssid)
256 wpas_notify_network_changed(wpa_s);
257
258 return 0;
259 }
260
261
262 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
263 {
264 struct wpa_supplicant *wpa_s = eloop_ctx;
265
266 if (wpa_s->countermeasures) {
267 wpa_s->countermeasures = 0;
268 wpa_drv_set_countermeasures(wpa_s, 0);
269 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
270
271 /*
272 * It is possible that the device is sched scanning, which means
273 * that a connection attempt will be done only when we receive
274 * scan results. However, in this case, it would be preferable
275 * to scan and connect immediately, so cancel the sched_scan and
276 * issue a regular scan flow.
277 */
278 wpa_supplicant_cancel_sched_scan(wpa_s);
279 wpa_supplicant_req_scan(wpa_s, 0, 0);
280 }
281 }
282
283
284 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
285 {
286 int bssid_changed;
287
288 wnm_bss_keep_alive_deinit(wpa_s);
289
290 #ifdef CONFIG_IBSS_RSN
291 ibss_rsn_deinit(wpa_s->ibss_rsn);
292 wpa_s->ibss_rsn = NULL;
293 #endif /* CONFIG_IBSS_RSN */
294
295 #ifdef CONFIG_AP
296 wpa_supplicant_ap_deinit(wpa_s);
297 #endif /* CONFIG_AP */
298
299 #ifdef CONFIG_HS20
300 /* Clear possibly configured frame filters */
301 wpa_drv_configure_frame_filters(wpa_s, 0);
302 #endif /* CONFIG_HS20 */
303
304 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
305 return;
306
307 if (os_reltime_initialized(&wpa_s->session_start)) {
308 os_reltime_age(&wpa_s->session_start, &wpa_s->session_length);
309 wpa_s->session_start.sec = 0;
310 wpa_s->session_start.usec = 0;
311 wpas_notify_session_length(wpa_s);
312 }
313
314 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
315 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
316 os_memset(wpa_s->bssid, 0, ETH_ALEN);
317 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
318 sme_clear_on_disassoc(wpa_s);
319 wpa_s->current_bss = NULL;
320 wpa_s->assoc_freq = 0;
321
322 if (bssid_changed)
323 wpas_notify_bssid_changed(wpa_s);
324
325 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
326 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
327 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
328 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE ||
329 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP || wpa_s->drv_authorized_port)
330 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
331 wpa_s->drv_authorized_port = 0;
332 wpa_s->ap_ies_from_associnfo = 0;
333 wpa_s->current_ssid = NULL;
334 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
335 wpa_s->key_mgmt = 0;
336
337 wpas_rrm_reset(wpa_s);
338 wpa_s->wnmsleep_used = 0;
339 wnm_clear_coloc_intf_reporting(wpa_s);
340 wpa_s->disable_mbo_oce = 0;
341
342 #ifdef CONFIG_TESTING_OPTIONS
343 wpa_s->last_tk_alg = WPA_ALG_NONE;
344 os_memset(wpa_s->last_tk, 0, sizeof(wpa_s->last_tk));
345 #endif /* CONFIG_TESTING_OPTIONS */
346 wpa_s->ieee80211ac = 0;
347
348 if (wpa_s->enabled_4addr_mode && wpa_drv_set_4addr_mode(wpa_s, 0) == 0)
349 wpa_s->enabled_4addr_mode = 0;
350 }
351
352
353 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
354 {
355 struct wpa_ie_data ie;
356 int pmksa_set = -1;
357 size_t i;
358
359 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
360 ie.pmkid == NULL)
361 return;
362
363 for (i = 0; i < ie.num_pmkid; i++) {
364 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
365 ie.pmkid + i * PMKID_LEN,
366 NULL, NULL, 0, NULL, 0);
367 if (pmksa_set == 0) {
368 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
369 break;
370 }
371 }
372
373 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
374 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
375 }
376
377
378 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
379 union wpa_event_data *data)
380 {
381 if (data == NULL) {
382 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
383 "event");
384 return;
385 }
386 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
387 " index=%d preauth=%d",
388 MAC2STR(data->pmkid_candidate.bssid),
389 data->pmkid_candidate.index,
390 data->pmkid_candidate.preauth);
391
392 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
393 data->pmkid_candidate.index,
394 data->pmkid_candidate.preauth);
395 }
396
397
398 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
399 {
400 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
401 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
402 return 0;
403
404 #ifdef IEEE8021X_EAPOL
405 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
406 wpa_s->current_ssid &&
407 !(wpa_s->current_ssid->eapol_flags &
408 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
409 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
410 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
411 * plaintext or static WEP keys). */
412 return 0;
413 }
414 #endif /* IEEE8021X_EAPOL */
415
416 return 1;
417 }
418
419
420 /**
421 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
422 * @wpa_s: pointer to wpa_supplicant data
423 * @ssid: Configuration data for the network
424 * Returns: 0 on success, -1 on failure
425 *
426 * This function is called when starting authentication with a network that is
427 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
428 */
429 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
430 struct wpa_ssid *ssid)
431 {
432 #ifdef IEEE8021X_EAPOL
433 #ifdef PCSC_FUNCS
434 int aka = 0, sim = 0;
435
436 if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
437 wpa_s->scard != NULL || wpa_s->conf->external_sim)
438 return 0;
439
440 if (ssid == NULL || ssid->eap.eap_methods == NULL) {
441 sim = 1;
442 aka = 1;
443 } else {
444 struct eap_method_type *eap = ssid->eap.eap_methods;
445 while (eap->vendor != EAP_VENDOR_IETF ||
446 eap->method != EAP_TYPE_NONE) {
447 if (eap->vendor == EAP_VENDOR_IETF) {
448 if (eap->method == EAP_TYPE_SIM)
449 sim = 1;
450 else if (eap->method == EAP_TYPE_AKA ||
451 eap->method == EAP_TYPE_AKA_PRIME)
452 aka = 1;
453 }
454 eap++;
455 }
456 }
457
458 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
459 sim = 0;
460 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
461 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
462 NULL)
463 aka = 0;
464
465 if (!sim && !aka) {
466 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
467 "use SIM, but neither EAP-SIM nor EAP-AKA are "
468 "enabled");
469 return 0;
470 }
471
472 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
473 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
474
475 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
476 if (wpa_s->scard == NULL) {
477 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
478 "(pcsc-lite)");
479 return -1;
480 }
481 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
482 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
483 #endif /* PCSC_FUNCS */
484 #endif /* IEEE8021X_EAPOL */
485
486 return 0;
487 }
488
489
490 #ifndef CONFIG_NO_SCAN_PROCESSING
491
492 #ifdef CONFIG_WEP
493 static int has_wep_key(struct wpa_ssid *ssid)
494 {
495 int i;
496
497 for (i = 0; i < NUM_WEP_KEYS; i++) {
498 if (ssid->wep_key_len[i])
499 return 1;
500 }
501
502 return 0;
503 }
504 #endif /* CONFIG_WEP */
505
506
507 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
508 struct wpa_ssid *ssid)
509 {
510 int privacy = 0;
511
512 if (ssid->mixed_cell)
513 return 1;
514
515 #ifdef CONFIG_WPS
516 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
517 return 1;
518 #endif /* CONFIG_WPS */
519
520 #ifdef CONFIG_OWE
521 if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only)
522 return 1;
523 #endif /* CONFIG_OWE */
524
525 #ifdef CONFIG_WEP
526 if (has_wep_key(ssid))
527 privacy = 1;
528 #endif /* CONFIG_WEP */
529
530 #ifdef IEEE8021X_EAPOL
531 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
532 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
533 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
534 privacy = 1;
535 #endif /* IEEE8021X_EAPOL */
536
537 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
538 privacy = 1;
539
540 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
541 privacy = 1;
542
543 if (bss->caps & IEEE80211_CAP_PRIVACY)
544 return privacy;
545 return !privacy;
546 }
547
548
549 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
550 struct wpa_ssid *ssid,
551 struct wpa_bss *bss, int debug_print)
552 {
553 struct wpa_ie_data ie;
554 int proto_match = 0;
555 const u8 *rsn_ie, *wpa_ie;
556 int ret;
557 #ifdef CONFIG_WEP
558 int wep_ok;
559 #endif /* CONFIG_WEP */
560
561 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
562 if (ret >= 0)
563 return ret;
564
565 #ifdef CONFIG_WEP
566 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
567 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
568 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
569 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
570 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
571 #endif /* CONFIG_WEP */
572
573 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
574 while ((ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)) && rsn_ie) {
575 proto_match++;
576
577 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
578 if (debug_print)
579 wpa_dbg(wpa_s, MSG_DEBUG,
580 " skip RSN IE - parse failed");
581 break;
582 }
583 if (!ie.has_pairwise)
584 ie.pairwise_cipher = wpa_default_rsn_cipher(bss->freq);
585 if (!ie.has_group)
586 ie.group_cipher = wpa_default_rsn_cipher(bss->freq);
587
588 #ifdef CONFIG_WEP
589 if (wep_ok &&
590 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
591 {
592 if (debug_print)
593 wpa_dbg(wpa_s, MSG_DEBUG,
594 " selected based on TSN in RSN IE");
595 return 1;
596 }
597 #endif /* CONFIG_WEP */
598
599 if (!(ie.proto & ssid->proto) &&
600 !(ssid->proto & WPA_PROTO_OSEN)) {
601 if (debug_print)
602 wpa_dbg(wpa_s, MSG_DEBUG,
603 " skip RSN IE - proto mismatch");
604 break;
605 }
606
607 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
608 if (debug_print)
609 wpa_dbg(wpa_s, MSG_DEBUG,
610 " skip RSN IE - PTK cipher mismatch");
611 break;
612 }
613
614 if (!(ie.group_cipher & ssid->group_cipher)) {
615 if (debug_print)
616 wpa_dbg(wpa_s, MSG_DEBUG,
617 " skip RSN IE - GTK cipher mismatch");
618 break;
619 }
620
621 if (ssid->group_mgmt_cipher &&
622 !(ie.mgmt_group_cipher & ssid->group_mgmt_cipher)) {
623 if (debug_print)
624 wpa_dbg(wpa_s, MSG_DEBUG,
625 " skip RSN IE - group mgmt cipher mismatch");
626 break;
627 }
628
629 if (!(ie.key_mgmt & ssid->key_mgmt)) {
630 if (debug_print)
631 wpa_dbg(wpa_s, MSG_DEBUG,
632 " skip RSN IE - key mgmt mismatch");
633 break;
634 }
635
636 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
637 wpas_get_ssid_pmf(wpa_s, ssid) ==
638 MGMT_FRAME_PROTECTION_REQUIRED) {
639 if (debug_print)
640 wpa_dbg(wpa_s, MSG_DEBUG,
641 " skip RSN IE - no mgmt frame protection");
642 break;
643 }
644 if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
645 wpas_get_ssid_pmf(wpa_s, ssid) ==
646 NO_MGMT_FRAME_PROTECTION) {
647 if (debug_print)
648 wpa_dbg(wpa_s, MSG_DEBUG,
649 " skip RSN IE - no mgmt frame protection enabled but AP requires it");
650 break;
651 }
652
653 if (debug_print)
654 wpa_dbg(wpa_s, MSG_DEBUG,
655 " selected based on RSN IE");
656 return 1;
657 }
658
659 if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED &&
660 (!(ssid->key_mgmt & WPA_KEY_MGMT_OWE) || ssid->owe_only)) {
661 if (debug_print)
662 wpa_dbg(wpa_s, MSG_DEBUG,
663 " skip - MFP Required but network not MFP Capable");
664 return 0;
665 }
666
667 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
668 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
669 proto_match++;
670
671 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
672 if (debug_print)
673 wpa_dbg(wpa_s, MSG_DEBUG,
674 " skip WPA IE - parse failed");
675 break;
676 }
677
678 #ifdef CONFIG_WEP
679 if (wep_ok &&
680 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
681 {
682 if (debug_print)
683 wpa_dbg(wpa_s, MSG_DEBUG,
684 " selected based on TSN in WPA IE");
685 return 1;
686 }
687 #endif /* CONFIG_WEP */
688
689 if (!(ie.proto & ssid->proto)) {
690 if (debug_print)
691 wpa_dbg(wpa_s, MSG_DEBUG,
692 " skip WPA IE - proto mismatch");
693 break;
694 }
695
696 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
697 if (debug_print)
698 wpa_dbg(wpa_s, MSG_DEBUG,
699 " skip WPA IE - PTK cipher mismatch");
700 break;
701 }
702
703 if (!(ie.group_cipher & ssid->group_cipher)) {
704 if (debug_print)
705 wpa_dbg(wpa_s, MSG_DEBUG,
706 " skip WPA IE - GTK cipher mismatch");
707 break;
708 }
709
710 if (!(ie.key_mgmt & ssid->key_mgmt)) {
711 if (debug_print)
712 wpa_dbg(wpa_s, MSG_DEBUG,
713 " skip WPA IE - key mgmt mismatch");
714 break;
715 }
716
717 if (debug_print)
718 wpa_dbg(wpa_s, MSG_DEBUG,
719 " selected based on WPA IE");
720 return 1;
721 }
722
723 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
724 !rsn_ie) {
725 if (debug_print)
726 wpa_dbg(wpa_s, MSG_DEBUG,
727 " allow for non-WPA IEEE 802.1X");
728 return 1;
729 }
730
731 #ifdef CONFIG_OWE
732 if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only &&
733 !wpa_ie && !rsn_ie) {
734 if (wpa_s->owe_transition_select &&
735 wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE) &&
736 ssid->owe_transition_bss_select_count + 1 <=
737 MAX_OWE_TRANSITION_BSS_SELECT_COUNT) {
738 ssid->owe_transition_bss_select_count++;
739 if (debug_print)
740 wpa_dbg(wpa_s, MSG_DEBUG,
741 " skip OWE transition BSS (selection count %d does not exceed %d)",
742 ssid->owe_transition_bss_select_count,
743 MAX_OWE_TRANSITION_BSS_SELECT_COUNT);
744 wpa_s->owe_transition_search = 1;
745 return 0;
746 }
747 if (debug_print)
748 wpa_dbg(wpa_s, MSG_DEBUG,
749 " allow in OWE transition mode");
750 return 1;
751 }
752 #endif /* CONFIG_OWE */
753
754 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
755 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
756 if (debug_print)
757 wpa_dbg(wpa_s, MSG_DEBUG,
758 " skip - no WPA/RSN proto match");
759 return 0;
760 }
761
762 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
763 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
764 if (debug_print)
765 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
766 return 1;
767 }
768
769 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
770 if (debug_print)
771 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
772 return 1;
773 }
774
775 if (debug_print)
776 wpa_dbg(wpa_s, MSG_DEBUG,
777 " reject due to mismatch with WPA/WPA2");
778
779 return 0;
780 }
781
782
783 static int freq_allowed(int *freqs, int freq)
784 {
785 int i;
786
787 if (freqs == NULL)
788 return 1;
789
790 for (i = 0; freqs[i]; i++)
791 if (freqs[i] == freq)
792 return 1;
793 return 0;
794 }
795
796
797 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
798 struct wpa_bss *bss, int debug_print)
799 {
800 const struct hostapd_hw_modes *mode = NULL, *modes;
801 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
802 const u8 *rate_ie;
803 int i, j, k;
804
805 if (bss->freq == 0)
806 return 1; /* Cannot do matching without knowing band */
807
808 modes = wpa_s->hw.modes;
809 if (modes == NULL) {
810 /*
811 * The driver does not provide any additional information
812 * about the utilized hardware, so allow the connection attempt
813 * to continue.
814 */
815 return 1;
816 }
817
818 for (i = 0; i < wpa_s->hw.num_modes; i++) {
819 for (j = 0; j < modes[i].num_channels; j++) {
820 int freq = modes[i].channels[j].freq;
821 if (freq == bss->freq) {
822 if (mode &&
823 mode->mode == HOSTAPD_MODE_IEEE80211G)
824 break; /* do not allow 802.11b replace
825 * 802.11g */
826 mode = &modes[i];
827 break;
828 }
829 }
830 }
831
832 if (mode == NULL)
833 return 0;
834
835 for (i = 0; i < (int) sizeof(scan_ie); i++) {
836 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
837 if (rate_ie == NULL)
838 continue;
839
840 for (j = 2; j < rate_ie[1] + 2; j++) {
841 int flagged = !!(rate_ie[j] & 0x80);
842 int r = (rate_ie[j] & 0x7f) * 5;
843
844 /*
845 * IEEE Std 802.11n-2009 7.3.2.2:
846 * The new BSS Membership selector value is encoded
847 * like a legacy basic rate, but it is not a rate and
848 * only indicates if the BSS members are required to
849 * support the mandatory features of Clause 20 [HT PHY]
850 * in order to join the BSS.
851 */
852 if (flagged && ((rate_ie[j] & 0x7f) ==
853 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
854 if (!ht_supported(mode)) {
855 if (debug_print)
856 wpa_dbg(wpa_s, MSG_DEBUG,
857 " hardware does not support HT PHY");
858 return 0;
859 }
860 continue;
861 }
862
863 /* There's also a VHT selector for 802.11ac */
864 if (flagged && ((rate_ie[j] & 0x7f) ==
865 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
866 if (!vht_supported(mode)) {
867 if (debug_print)
868 wpa_dbg(wpa_s, MSG_DEBUG,
869 " hardware does not support VHT PHY");
870 return 0;
871 }
872 continue;
873 }
874
875 #ifdef CONFIG_SAE
876 if (flagged && ((rate_ie[j] & 0x7f) ==
877 BSS_MEMBERSHIP_SELECTOR_SAE_H2E_ONLY)) {
878 if (wpa_s->conf->sae_pwe == 0 &&
879 !ssid->sae_password_id &&
880 wpa_key_mgmt_sae(ssid->key_mgmt)) {
881 if (debug_print)
882 wpa_dbg(wpa_s, MSG_DEBUG,
883 " SAE H2E disabled");
884 #ifdef CONFIG_TESTING_OPTIONS
885 if (wpa_s->ignore_sae_h2e_only) {
886 wpa_dbg(wpa_s, MSG_DEBUG,
887 "TESTING: Ignore SAE H2E requirement mismatch");
888 continue;
889 }
890 #endif /* CONFIG_TESTING_OPTIONS */
891 return 0;
892 }
893 continue;
894 }
895 #endif /* CONFIG_SAE */
896
897 if (!flagged)
898 continue;
899
900 /* check for legacy basic rates */
901 for (k = 0; k < mode->num_rates; k++) {
902 if (mode->rates[k] == r)
903 break;
904 }
905 if (k == mode->num_rates) {
906 /*
907 * IEEE Std 802.11-2007 7.3.2.2 demands that in
908 * order to join a BSS all required rates
909 * have to be supported by the hardware.
910 */
911 if (debug_print)
912 wpa_dbg(wpa_s, MSG_DEBUG,
913 " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
914 r / 10, r % 10,
915 bss->freq, mode->mode, mode->num_rates);
916 return 0;
917 }
918 }
919 }
920
921 return 1;
922 }
923
924
925 /*
926 * Test whether BSS is in an ESS.
927 * This is done differently in DMG (60 GHz) and non-DMG bands
928 */
929 static int bss_is_ess(struct wpa_bss *bss)
930 {
931 if (bss_is_dmg(bss)) {
932 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
933 IEEE80211_CAP_DMG_AP;
934 }
935
936 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
937 IEEE80211_CAP_ESS);
938 }
939
940
941 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
942 {
943 size_t i;
944
945 for (i = 0; i < ETH_ALEN; i++) {
946 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
947 return 0;
948 }
949 return 1;
950 }
951
952
953 static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
954 {
955 size_t i;
956
957 for (i = 0; i < num; i++) {
958 const u8 *a = list + i * ETH_ALEN * 2;
959 const u8 *m = a + ETH_ALEN;
960
961 if (match_mac_mask(a, addr, m))
962 return 1;
963 }
964 return 0;
965 }
966
967
968 static void owe_trans_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
969 const u8 **ret_ssid, size_t *ret_ssid_len)
970 {
971 #ifdef CONFIG_OWE
972 const u8 *owe, *pos, *end, *bssid;
973 u8 ssid_len;
974 struct wpa_bss *open_bss;
975
976 owe = wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE);
977 if (!owe || !wpa_bss_get_ie(bss, WLAN_EID_RSN))
978 return;
979
980 pos = owe + 6;
981 end = owe + 2 + owe[1];
982
983 if (end - pos < ETH_ALEN + 1)
984 return;
985 bssid = pos;
986 pos += ETH_ALEN;
987 ssid_len = *pos++;
988 if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN)
989 return;
990
991 /* Match the profile SSID against the OWE transition mode SSID on the
992 * open network. */
993 wpa_dbg(wpa_s, MSG_DEBUG, "OWE: transition mode BSSID: " MACSTR
994 " SSID: %s", MAC2STR(bssid), wpa_ssid_txt(pos, ssid_len));
995 *ret_ssid = pos;
996 *ret_ssid_len = ssid_len;
997
998 if (!(bss->flags & WPA_BSS_OWE_TRANSITION)) {
999 struct wpa_ssid *ssid;
1000
1001 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1002 if (wpas_network_disabled(wpa_s, ssid))
1003 continue;
1004 if (ssid->ssid_len == ssid_len &&
1005 os_memcmp(ssid->ssid, pos, ssid_len) == 0) {
1006 /* OWE BSS in transition mode for a currently
1007 * enabled OWE network. */
1008 wpa_dbg(wpa_s, MSG_DEBUG,
1009 "OWE: transition mode OWE SSID for active OWE profile");
1010 bss->flags |= WPA_BSS_OWE_TRANSITION;
1011 break;
1012 }
1013 }
1014 }
1015
1016 if (bss->ssid_len > 0)
1017 return;
1018
1019 open_bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
1020 if (!open_bss)
1021 return;
1022 if (ssid_len != open_bss->ssid_len ||
1023 os_memcmp(pos, open_bss->ssid, ssid_len) != 0) {
1024 wpa_dbg(wpa_s, MSG_DEBUG,
1025 "OWE: transition mode SSID mismatch: %s",
1026 wpa_ssid_txt(open_bss->ssid, open_bss->ssid_len));
1027 return;
1028 }
1029
1030 owe = wpa_bss_get_vendor_ie(open_bss, OWE_IE_VENDOR_TYPE);
1031 if (!owe || wpa_bss_get_ie(open_bss, WLAN_EID_RSN)) {
1032 wpa_dbg(wpa_s, MSG_DEBUG,
1033 "OWE: transition mode open BSS unexpected info");
1034 return;
1035 }
1036
1037 pos = owe + 6;
1038 end = owe + 2 + owe[1];
1039
1040 if (end - pos < ETH_ALEN + 1)
1041 return;
1042 if (os_memcmp(pos, bss->bssid, ETH_ALEN) != 0) {
1043 wpa_dbg(wpa_s, MSG_DEBUG,
1044 "OWE: transition mode BSSID mismatch: " MACSTR,
1045 MAC2STR(pos));
1046 return;
1047 }
1048 pos += ETH_ALEN;
1049 ssid_len = *pos++;
1050 if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN)
1051 return;
1052 wpa_dbg(wpa_s, MSG_DEBUG, "OWE: learned transition mode OWE SSID: %s",
1053 wpa_ssid_txt(pos, ssid_len));
1054 os_memcpy(bss->ssid, pos, ssid_len);
1055 bss->ssid_len = ssid_len;
1056 bss->flags |= WPA_BSS_OWE_TRANSITION;
1057 #endif /* CONFIG_OWE */
1058 }
1059
1060
1061 static int disabled_freq(struct wpa_supplicant *wpa_s, int freq)
1062 {
1063 int i, j;
1064
1065 if (!wpa_s->hw.modes || !wpa_s->hw.num_modes)
1066 return 0;
1067
1068 for (j = 0; j < wpa_s->hw.num_modes; j++) {
1069 struct hostapd_hw_modes *mode = &wpa_s->hw.modes[j];
1070
1071 for (i = 0; i < mode->num_channels; i++) {
1072 struct hostapd_channel_data *chan = &mode->channels[i];
1073
1074 if (chan->freq == freq)
1075 return !!(chan->flag & HOSTAPD_CHAN_DISABLED);
1076 }
1077 }
1078
1079 return 1;
1080 }
1081
1082
1083 struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
1084 int i, struct wpa_bss *bss,
1085 struct wpa_ssid *group,
1086 int only_first_ssid, int debug_print)
1087 {
1088 u8 wpa_ie_len, rsn_ie_len;
1089 int wpa;
1090 struct wpa_blacklist *e;
1091 const u8 *ie;
1092 struct wpa_ssid *ssid;
1093 int osen, rsn_osen = 0;
1094 #ifdef CONFIG_MBO
1095 const u8 *assoc_disallow;
1096 #endif /* CONFIG_MBO */
1097 const u8 *match_ssid;
1098 size_t match_ssid_len;
1099 struct wpa_ie_data data;
1100
1101 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1102 wpa_ie_len = ie ? ie[1] : 0;
1103
1104 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1105 rsn_ie_len = ie ? ie[1] : 0;
1106 if (ie && wpa_parse_wpa_ie_rsn(ie, 2 + ie[1], &data) == 0 &&
1107 (data.key_mgmt & WPA_KEY_MGMT_OSEN))
1108 rsn_osen = 1;
1109
1110 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
1111 osen = ie != NULL;
1112
1113 if (debug_print) {
1114 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR
1115 " ssid='%s' wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
1116 i, MAC2STR(bss->bssid),
1117 wpa_ssid_txt(bss->ssid, bss->ssid_len),
1118 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
1119 bss->freq,
1120 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ?
1121 " wps" : "",
1122 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
1123 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE))
1124 ? " p2p" : "",
1125 osen ? " osen=1" : "");
1126 }
1127
1128 e = wpa_blacklist_get(wpa_s, bss->bssid);
1129 if (e) {
1130 int limit = 1;
1131 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
1132 /*
1133 * When only a single network is enabled, we can
1134 * trigger blacklisting on the first failure. This
1135 * should not be done with multiple enabled networks to
1136 * avoid getting forced to move into a worse ESS on
1137 * single error if there are no other BSSes of the
1138 * current ESS.
1139 */
1140 limit = 0;
1141 }
1142 if (e->count > limit) {
1143 if (debug_print) {
1144 wpa_dbg(wpa_s, MSG_DEBUG,
1145 " skip - blacklisted (count=%d limit=%d)",
1146 e->count, limit);
1147 }
1148 return NULL;
1149 }
1150 }
1151
1152 match_ssid = bss->ssid;
1153 match_ssid_len = bss->ssid_len;
1154 owe_trans_ssid(wpa_s, bss, &match_ssid, &match_ssid_len);
1155
1156 if (match_ssid_len == 0) {
1157 if (debug_print)
1158 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
1159 return NULL;
1160 }
1161
1162 if (disallowed_bssid(wpa_s, bss->bssid)) {
1163 if (debug_print)
1164 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
1165 return NULL;
1166 }
1167
1168 if (disallowed_ssid(wpa_s, match_ssid, match_ssid_len)) {
1169 if (debug_print)
1170 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
1171 return NULL;
1172 }
1173
1174 if (disabled_freq(wpa_s, bss->freq)) {
1175 if (debug_print)
1176 wpa_dbg(wpa_s, MSG_DEBUG, " skip - channel disabled");
1177 return NULL;
1178 }
1179
1180 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
1181
1182 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
1183 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
1184 int res;
1185
1186 if (wpas_network_disabled(wpa_s, ssid)) {
1187 if (debug_print)
1188 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
1189 continue;
1190 }
1191
1192 res = wpas_temp_disabled(wpa_s, ssid);
1193 if (res > 0) {
1194 if (debug_print)
1195 wpa_dbg(wpa_s, MSG_DEBUG,
1196 " skip - disabled temporarily for %d second(s)",
1197 res);
1198 continue;
1199 }
1200
1201 #ifdef CONFIG_WPS
1202 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
1203 if (debug_print)
1204 wpa_dbg(wpa_s, MSG_DEBUG,
1205 " skip - blacklisted (WPS)");
1206 continue;
1207 }
1208
1209 if (wpa && ssid->ssid_len == 0 &&
1210 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
1211 check_ssid = 0;
1212
1213 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
1214 /* Only allow wildcard SSID match if an AP
1215 * advertises active WPS operation that matches
1216 * with our mode. */
1217 check_ssid = 1;
1218 if (ssid->ssid_len == 0 &&
1219 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
1220 check_ssid = 0;
1221 }
1222 #endif /* CONFIG_WPS */
1223
1224 if (ssid->bssid_set && ssid->ssid_len == 0 &&
1225 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
1226 check_ssid = 0;
1227
1228 if (check_ssid &&
1229 (match_ssid_len != ssid->ssid_len ||
1230 os_memcmp(match_ssid, ssid->ssid, match_ssid_len) != 0)) {
1231 if (debug_print)
1232 wpa_dbg(wpa_s, MSG_DEBUG,
1233 " skip - SSID mismatch");
1234 continue;
1235 }
1236
1237 if (ssid->bssid_set &&
1238 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
1239 if (debug_print)
1240 wpa_dbg(wpa_s, MSG_DEBUG,
1241 " skip - BSSID mismatch");
1242 continue;
1243 }
1244
1245 /* check blacklist */
1246 if (ssid->num_bssid_blacklist &&
1247 addr_in_list(bss->bssid, ssid->bssid_blacklist,
1248 ssid->num_bssid_blacklist)) {
1249 if (debug_print)
1250 wpa_dbg(wpa_s, MSG_DEBUG,
1251 " skip - BSSID blacklisted");
1252 continue;
1253 }
1254
1255 /* if there is a whitelist, only accept those APs */
1256 if (ssid->num_bssid_whitelist &&
1257 !addr_in_list(bss->bssid, ssid->bssid_whitelist,
1258 ssid->num_bssid_whitelist)) {
1259 if (debug_print)
1260 wpa_dbg(wpa_s, MSG_DEBUG,
1261 " skip - BSSID not in whitelist");
1262 continue;
1263 }
1264
1265 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss,
1266 debug_print))
1267 continue;
1268
1269 if (!osen && !wpa &&
1270 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
1271 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
1272 !(ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
1273 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
1274 if (debug_print)
1275 wpa_dbg(wpa_s, MSG_DEBUG,
1276 " skip - non-WPA network not allowed");
1277 continue;
1278 }
1279
1280 #ifdef CONFIG_WEP
1281 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
1282 has_wep_key(ssid)) {
1283 if (debug_print)
1284 wpa_dbg(wpa_s, MSG_DEBUG,
1285 " skip - ignore WPA/WPA2 AP for WEP network block");
1286 continue;
1287 }
1288 #endif /* CONFIG_WEP */
1289
1290 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen &&
1291 !rsn_osen) {
1292 if (debug_print)
1293 wpa_dbg(wpa_s, MSG_DEBUG,
1294 " skip - non-OSEN network not allowed");
1295 continue;
1296 }
1297
1298 if (!wpa_supplicant_match_privacy(bss, ssid)) {
1299 if (debug_print)
1300 wpa_dbg(wpa_s, MSG_DEBUG,
1301 " skip - privacy mismatch");
1302 continue;
1303 }
1304
1305 if (ssid->mode != WPAS_MODE_MESH && !bss_is_ess(bss) &&
1306 !bss_is_pbss(bss)) {
1307 if (debug_print)
1308 wpa_dbg(wpa_s, MSG_DEBUG,
1309 " skip - not ESS, PBSS, or MBSS");
1310 continue;
1311 }
1312
1313 if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) {
1314 if (debug_print)
1315 wpa_dbg(wpa_s, MSG_DEBUG,
1316 " skip - PBSS mismatch (ssid %d bss %d)",
1317 ssid->pbss, bss_is_pbss(bss));
1318 continue;
1319 }
1320
1321 if (!freq_allowed(ssid->freq_list, bss->freq)) {
1322 if (debug_print)
1323 wpa_dbg(wpa_s, MSG_DEBUG,
1324 " skip - frequency not allowed");
1325 continue;
1326 }
1327
1328 #ifdef CONFIG_MESH
1329 if (ssid->mode == WPAS_MODE_MESH && ssid->frequency > 0 &&
1330 ssid->frequency != bss->freq) {
1331 if (debug_print)
1332 wpa_dbg(wpa_s, MSG_DEBUG,
1333 " skip - frequency not allowed (mesh)");
1334 continue;
1335 }
1336 #endif /* CONFIG_MESH */
1337
1338 if (!rate_match(wpa_s, ssid, bss, debug_print)) {
1339 if (debug_print)
1340 wpa_dbg(wpa_s, MSG_DEBUG,
1341 " skip - rate sets do not match");
1342 continue;
1343 }
1344
1345 #ifdef CONFIG_SAE
1346 if ((wpa_s->conf->sae_pwe == 1 || ssid->sae_password_id) &&
1347 wpa_s->conf->sae_pwe != 3 &&
1348 wpa_key_mgmt_sae(ssid->key_mgmt) &&
1349 (!(ie = wpa_bss_get_ie(bss, WLAN_EID_RSNX)) ||
1350 ie[1] < 1 ||
1351 !(ie[2] & BIT(WLAN_RSNX_CAPAB_SAE_H2E)))) {
1352 if (debug_print)
1353 wpa_dbg(wpa_s, MSG_DEBUG,
1354 " skip - SAE H2E required, but not supported by the AP");
1355 continue;
1356 }
1357 #endif /* CONFIG_SAE */
1358
1359 #ifndef CONFIG_IBSS_RSN
1360 if (ssid->mode == WPAS_MODE_IBSS &&
1361 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE |
1362 WPA_KEY_MGMT_WPA_NONE))) {
1363 if (debug_print)
1364 wpa_dbg(wpa_s, MSG_DEBUG,
1365 " skip - IBSS RSN not supported in the build");
1366 continue;
1367 }
1368 #endif /* !CONFIG_IBSS_RSN */
1369
1370 #ifdef CONFIG_P2P
1371 if (ssid->p2p_group &&
1372 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1373 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1374 if (debug_print)
1375 wpa_dbg(wpa_s, MSG_DEBUG,
1376 " skip - no P2P IE seen");
1377 continue;
1378 }
1379
1380 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1381 struct wpabuf *p2p_ie;
1382 u8 dev_addr[ETH_ALEN];
1383
1384 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1385 if (ie == NULL) {
1386 if (debug_print)
1387 wpa_dbg(wpa_s, MSG_DEBUG,
1388 " skip - no P2P element");
1389 continue;
1390 }
1391 p2p_ie = wpa_bss_get_vendor_ie_multi(
1392 bss, P2P_IE_VENDOR_TYPE);
1393 if (p2p_ie == NULL) {
1394 if (debug_print)
1395 wpa_dbg(wpa_s, MSG_DEBUG,
1396 " skip - could not fetch P2P element");
1397 continue;
1398 }
1399
1400 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
1401 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
1402 ETH_ALEN) != 0) {
1403 if (debug_print)
1404 wpa_dbg(wpa_s, MSG_DEBUG,
1405 " skip - no matching GO P2P Device Address in P2P element");
1406 wpabuf_free(p2p_ie);
1407 continue;
1408 }
1409 wpabuf_free(p2p_ie);
1410 }
1411
1412 /*
1413 * TODO: skip the AP if its P2P IE has Group Formation
1414 * bit set in the P2P Group Capability Bitmap and we
1415 * are not in Group Formation with that device.
1416 */
1417 #endif /* CONFIG_P2P */
1418
1419 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time))
1420 {
1421 struct os_reltime diff;
1422
1423 os_reltime_sub(&wpa_s->scan_min_time,
1424 &bss->last_update, &diff);
1425 if (debug_print)
1426 wpa_dbg(wpa_s, MSG_DEBUG,
1427 " skip - scan result not recent enough (%u.%06u seconds too old)",
1428 (unsigned int) diff.sec,
1429 (unsigned int) diff.usec);
1430 continue;
1431 }
1432 #ifdef CONFIG_MBO
1433 #ifdef CONFIG_TESTING_OPTIONS
1434 if (wpa_s->ignore_assoc_disallow)
1435 goto skip_assoc_disallow;
1436 #endif /* CONFIG_TESTING_OPTIONS */
1437 assoc_disallow = wpas_mbo_get_bss_attr(
1438 bss, MBO_ATTR_ID_ASSOC_DISALLOW);
1439 if (assoc_disallow && assoc_disallow[1] >= 1) {
1440 if (debug_print)
1441 wpa_dbg(wpa_s, MSG_DEBUG,
1442 " skip - MBO association disallowed (reason %u)",
1443 assoc_disallow[2]);
1444 continue;
1445 }
1446
1447 if (wpa_is_bss_tmp_disallowed(wpa_s, bss)) {
1448 if (debug_print)
1449 wpa_dbg(wpa_s, MSG_DEBUG,
1450 " skip - AP temporarily disallowed");
1451 continue;
1452 }
1453 #ifdef CONFIG_TESTING_OPTIONS
1454 skip_assoc_disallow:
1455 #endif /* CONFIG_TESTING_OPTIONS */
1456 #endif /* CONFIG_MBO */
1457
1458 #ifdef CONFIG_DPP
1459 if ((ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
1460 !wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, ssid) &&
1461 (!ssid->dpp_connector ||
1462 !ssid->dpp_netaccesskey ||
1463 !ssid->dpp_csign)) {
1464 if (debug_print)
1465 wpa_dbg(wpa_s, MSG_DEBUG,
1466 " skip - no PMKSA entry for DPP");
1467 continue;
1468 }
1469 #endif /* CONFIG_DPP */
1470
1471 /* Matching configuration found */
1472 return ssid;
1473 }
1474
1475 /* No matching configuration found */
1476 return NULL;
1477 }
1478
1479
1480 static struct wpa_bss *
1481 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1482 struct wpa_ssid *group,
1483 struct wpa_ssid **selected_ssid,
1484 int only_first_ssid)
1485 {
1486 unsigned int i;
1487
1488 if (wpa_s->current_ssid) {
1489 struct wpa_ssid *ssid;
1490
1491 wpa_dbg(wpa_s, MSG_DEBUG,
1492 "Scan results matching the currently selected network");
1493 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1494 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1495
1496 ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1497 only_first_ssid, 0);
1498 if (ssid != wpa_s->current_ssid)
1499 continue;
1500 wpa_dbg(wpa_s, MSG_DEBUG, "%u: " MACSTR
1501 " freq=%d level=%d snr=%d est_throughput=%u",
1502 i, MAC2STR(bss->bssid), bss->freq, bss->level,
1503 bss->snr, bss->est_throughput);
1504 }
1505 }
1506
1507 if (only_first_ssid)
1508 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1509 group->id);
1510 else
1511 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1512 group->priority);
1513
1514 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1515 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1516
1517 wpa_s->owe_transition_select = 1;
1518 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1519 only_first_ssid, 1);
1520 wpa_s->owe_transition_select = 0;
1521 if (!*selected_ssid)
1522 continue;
1523 wpa_dbg(wpa_s, MSG_DEBUG, " selected %sBSS " MACSTR
1524 " ssid='%s'",
1525 bss == wpa_s->current_bss ? "current ": "",
1526 MAC2STR(bss->bssid),
1527 wpa_ssid_txt(bss->ssid, bss->ssid_len));
1528 return bss;
1529 }
1530
1531 return NULL;
1532 }
1533
1534
1535 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1536 struct wpa_ssid **selected_ssid)
1537 {
1538 struct wpa_bss *selected = NULL;
1539 size_t prio;
1540 struct wpa_ssid *next_ssid = NULL;
1541 struct wpa_ssid *ssid;
1542
1543 if (wpa_s->last_scan_res == NULL ||
1544 wpa_s->last_scan_res_used == 0)
1545 return NULL; /* no scan results from last update */
1546
1547 if (wpa_s->next_ssid) {
1548 /* check that next_ssid is still valid */
1549 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1550 if (ssid == wpa_s->next_ssid)
1551 break;
1552 }
1553 next_ssid = ssid;
1554 wpa_s->next_ssid = NULL;
1555 }
1556
1557 while (selected == NULL) {
1558 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1559 if (next_ssid && next_ssid->priority ==
1560 wpa_s->conf->pssid[prio]->priority) {
1561 selected = wpa_supplicant_select_bss(
1562 wpa_s, next_ssid, selected_ssid, 1);
1563 if (selected)
1564 break;
1565 }
1566 selected = wpa_supplicant_select_bss(
1567 wpa_s, wpa_s->conf->pssid[prio],
1568 selected_ssid, 0);
1569 if (selected)
1570 break;
1571 }
1572
1573 if (selected == NULL && wpa_s->blacklist &&
1574 !wpa_s->countermeasures) {
1575 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1576 "blacklist and try again");
1577 wpa_blacklist_clear(wpa_s);
1578 wpa_s->blacklist_cleared++;
1579 } else if (selected == NULL)
1580 break;
1581 }
1582
1583 ssid = *selected_ssid;
1584 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1585 !ssid->passphrase && !ssid->ext_psk) {
1586 const char *field_name, *txt = NULL;
1587
1588 wpa_dbg(wpa_s, MSG_DEBUG,
1589 "PSK/passphrase not yet available for the selected network");
1590
1591 wpas_notify_network_request(wpa_s, ssid,
1592 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1593
1594 field_name = wpa_supplicant_ctrl_req_to_string(
1595 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1596 if (field_name == NULL)
1597 return NULL;
1598
1599 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1600
1601 selected = NULL;
1602 }
1603
1604 return selected;
1605 }
1606
1607
1608 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1609 int timeout_sec, int timeout_usec)
1610 {
1611 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1612 /*
1613 * No networks are enabled; short-circuit request so
1614 * we don't wait timeout seconds before transitioning
1615 * to INACTIVE state.
1616 */
1617 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1618 "since there are no enabled networks");
1619 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1620 return;
1621 }
1622
1623 wpa_s->scan_for_connection = 1;
1624 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1625 }
1626
1627
1628 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1629 struct wpa_bss *selected,
1630 struct wpa_ssid *ssid)
1631 {
1632 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1633 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1634 "PBC session overlap");
1635 wpas_notify_wps_event_pbc_overlap(wpa_s);
1636 #ifdef CONFIG_P2P
1637 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1638 wpa_s->p2p_in_provisioning) {
1639 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1640 wpa_s, NULL);
1641 return -1;
1642 }
1643 #endif /* CONFIG_P2P */
1644
1645 #ifdef CONFIG_WPS
1646 wpas_wps_pbc_overlap(wpa_s);
1647 wpas_wps_cancel(wpa_s);
1648 #endif /* CONFIG_WPS */
1649 return -1;
1650 }
1651
1652 wpa_msg(wpa_s, MSG_DEBUG,
1653 "Considering connect request: reassociate: %d selected: "
1654 MACSTR " bssid: " MACSTR " pending: " MACSTR
1655 " wpa_state: %s ssid=%p current_ssid=%p",
1656 wpa_s->reassociate, MAC2STR(selected->bssid),
1657 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1658 wpa_supplicant_state_txt(wpa_s->wpa_state),
1659 ssid, wpa_s->current_ssid);
1660
1661 /*
1662 * Do not trigger new association unless the BSSID has changed or if
1663 * reassociation is requested. If we are in process of associating with
1664 * the selected BSSID, do not trigger new attempt.
1665 */
1666 if (wpa_s->reassociate ||
1667 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1668 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1669 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1670 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1671 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1672 0) ||
1673 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1674 ssid != wpa_s->current_ssid)))) {
1675 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1676 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1677 return 0;
1678 }
1679 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1680 MAC2STR(selected->bssid));
1681 wpa_supplicant_associate(wpa_s, selected, ssid);
1682 } else {
1683 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1684 "connect with the selected AP");
1685 }
1686
1687 return 0;
1688 }
1689
1690
1691 static struct wpa_ssid *
1692 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1693 {
1694 size_t prio;
1695 struct wpa_ssid *ssid;
1696
1697 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1698 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1699 {
1700 if (wpas_network_disabled(wpa_s, ssid))
1701 continue;
1702 #ifndef CONFIG_IBSS_RSN
1703 if (ssid->mode == WPAS_MODE_IBSS &&
1704 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE |
1705 WPA_KEY_MGMT_WPA_NONE))) {
1706 wpa_msg(wpa_s, MSG_INFO,
1707 "IBSS RSN not supported in the build - cannot use the profile for SSID '%s'",
1708 wpa_ssid_txt(ssid->ssid,
1709 ssid->ssid_len));
1710 continue;
1711 }
1712 #endif /* !CONFIG_IBSS_RSN */
1713 if (ssid->mode == WPAS_MODE_IBSS ||
1714 ssid->mode == WPAS_MODE_AP ||
1715 ssid->mode == WPAS_MODE_MESH)
1716 return ssid;
1717 }
1718 }
1719 return NULL;
1720 }
1721
1722
1723 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1724 * on BSS added and BSS changed events */
1725 static void wpa_supplicant_rsn_preauth_scan_results(
1726 struct wpa_supplicant *wpa_s)
1727 {
1728 struct wpa_bss *bss;
1729
1730 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1731 return;
1732
1733 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1734 const u8 *ssid, *rsn;
1735
1736 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1737 if (ssid == NULL)
1738 continue;
1739
1740 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1741 if (rsn == NULL)
1742 continue;
1743
1744 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1745 }
1746
1747 }
1748
1749
1750 #ifndef CONFIG_NO_ROAMING
1751
1752 static int wpas_get_snr_signal_info(u32 frequency, int avg_signal, int noise)
1753 {
1754 if (noise == WPA_INVALID_NOISE)
1755 noise = IS_5GHZ(frequency) ? DEFAULT_NOISE_FLOOR_5GHZ :
1756 DEFAULT_NOISE_FLOOR_2GHZ;
1757 return avg_signal - noise;
1758 }
1759
1760
1761 static unsigned int
1762 wpas_get_est_throughput_from_bss_snr(const struct wpa_supplicant *wpa_s,
1763 const struct wpa_bss *bss, int snr)
1764 {
1765 int rate = wpa_bss_get_max_rate(bss);
1766 const u8 *ies = (const void *) (bss + 1);
1767 size_t ie_len = bss->ie_len ? bss->ie_len : bss->beacon_ie_len;
1768
1769 return wpas_get_est_tpt(wpa_s, ies, ie_len, rate, snr);
1770 }
1771
1772 #endif /* CONFIG_NO_ROAMING */
1773
1774
1775 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1776 struct wpa_bss *selected,
1777 struct wpa_ssid *ssid)
1778 {
1779 struct wpa_bss *current_bss = NULL;
1780 #ifndef CONFIG_NO_ROAMING
1781 int min_diff, diff;
1782 int to_5ghz;
1783 int cur_level;
1784 unsigned int cur_est, sel_est;
1785 struct wpa_signal_info si;
1786 int cur_snr = 0;
1787 #endif /* CONFIG_NO_ROAMING */
1788
1789 if (wpa_s->reassociate)
1790 return 1; /* explicit request to reassociate */
1791 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1792 return 1; /* we are not associated; continue */
1793 if (wpa_s->current_ssid == NULL)
1794 return 1; /* unknown current SSID */
1795 if (wpa_s->current_ssid != ssid)
1796 return 1; /* different network block */
1797
1798 if (wpas_driver_bss_selection(wpa_s))
1799 return 0; /* Driver-based roaming */
1800
1801 if (wpa_s->current_ssid->ssid)
1802 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1803 wpa_s->current_ssid->ssid,
1804 wpa_s->current_ssid->ssid_len);
1805 if (!current_bss)
1806 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1807
1808 if (!current_bss)
1809 return 1; /* current BSS not seen in scan results */
1810
1811 if (current_bss == selected)
1812 return 0;
1813
1814 if (selected->last_update_idx > current_bss->last_update_idx)
1815 return 1; /* current BSS not seen in the last scan */
1816
1817 #ifndef CONFIG_NO_ROAMING
1818 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1819 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1820 " freq=%d level=%d snr=%d est_throughput=%u",
1821 MAC2STR(current_bss->bssid),
1822 current_bss->freq, current_bss->level,
1823 current_bss->snr, current_bss->est_throughput);
1824 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1825 " freq=%d level=%d snr=%d est_throughput=%u",
1826 MAC2STR(selected->bssid), selected->freq, selected->level,
1827 selected->snr, selected->est_throughput);
1828
1829 if (wpa_s->current_ssid->bssid_set &&
1830 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1831 0) {
1832 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1833 "has preferred BSSID");
1834 return 1;
1835 }
1836
1837 cur_level = current_bss->level;
1838 cur_est = current_bss->est_throughput;
1839 sel_est = selected->est_throughput;
1840
1841 /*
1842 * Try to poll the signal from the driver since this will allow to get
1843 * more accurate values. In some cases, there can be big differences
1844 * between the RSSI of the Probe Response frames of the AP we are
1845 * associated with and the Beacon frames we hear from the same AP after
1846 * association. This can happen, e.g., when there are two antennas that
1847 * hear the AP very differently. If the driver chooses to hear the
1848 * Probe Response frames during the scan on the "bad" antenna because
1849 * it wants to save power, but knows to choose the other antenna after
1850 * association, we will hear our AP with a low RSSI as part of the
1851 * scan even when we can hear it decently on the other antenna. To cope
1852 * with this, ask the driver to teach us how it hears the AP. Also, the
1853 * scan results may be a bit old, since we can very quickly get fresh
1854 * information about our currently associated AP.
1855 */
1856 if (wpa_drv_signal_poll(wpa_s, &si) == 0 &&
1857 (si.avg_beacon_signal || si.avg_signal)) {
1858 cur_level = si.avg_beacon_signal ? si.avg_beacon_signal :
1859 si.avg_signal;
1860 cur_snr = wpas_get_snr_signal_info(si.frequency, cur_level,
1861 si.current_noise);
1862
1863 cur_est = wpas_get_est_throughput_from_bss_snr(wpa_s,
1864 current_bss,
1865 cur_snr);
1866 wpa_dbg(wpa_s, MSG_DEBUG,
1867 "Using signal poll values for the current BSS: level=%d snr=%d est_throughput=%u",
1868 cur_level, cur_snr, cur_est);
1869 }
1870
1871 if (sel_est > cur_est + 5000) {
1872 wpa_dbg(wpa_s, MSG_DEBUG,
1873 "Allow reassociation - selected BSS has better estimated throughput");
1874 return 1;
1875 }
1876
1877 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
1878
1879 if (cur_level < 0 && cur_level > selected->level + to_5ghz * 2 &&
1880 sel_est < cur_est * 1.2) {
1881 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1882 "signal level");
1883 return 0;
1884 }
1885
1886 if (cur_est > sel_est + 5000) {
1887 wpa_dbg(wpa_s, MSG_DEBUG,
1888 "Skip roam - Current BSS has better estimated throughput");
1889 return 0;
1890 }
1891
1892 if (cur_snr > GREAT_SNR) {
1893 wpa_dbg(wpa_s, MSG_DEBUG,
1894 "Skip roam - Current BSS has good SNR (%u > %u)",
1895 cur_snr, GREAT_SNR);
1896 return 0;
1897 }
1898
1899 if (cur_level < -85) /* ..-86 dBm */
1900 min_diff = 1;
1901 else if (cur_level < -80) /* -85..-81 dBm */
1902 min_diff = 2;
1903 else if (cur_level < -75) /* -80..-76 dBm */
1904 min_diff = 3;
1905 else if (cur_level < -70) /* -75..-71 dBm */
1906 min_diff = 4;
1907 else if (cur_level < 0) /* -70..-1 dBm */
1908 min_diff = 5;
1909 else /* unspecified units (not in dBm) */
1910 min_diff = 2;
1911
1912 if (cur_est > sel_est * 1.5)
1913 min_diff += 10;
1914 else if (cur_est > sel_est * 1.2)
1915 min_diff += 5;
1916 else if (cur_est > sel_est * 1.1)
1917 min_diff += 2;
1918 else if (cur_est > sel_est)
1919 min_diff++;
1920 else if (sel_est > cur_est * 1.5)
1921 min_diff -= 10;
1922 else if (sel_est > cur_est * 1.2)
1923 min_diff -= 5;
1924 else if (sel_est > cur_est * 1.1)
1925 min_diff -= 2;
1926 else if (sel_est > cur_est)
1927 min_diff--;
1928
1929 if (to_5ghz)
1930 min_diff -= 2;
1931 diff = selected->level - cur_level;
1932 if (diff < min_diff) {
1933 wpa_dbg(wpa_s, MSG_DEBUG,
1934 "Skip roam - too small difference in signal level (%d < %d)",
1935 diff, min_diff);
1936 return 0;
1937 }
1938
1939 wpa_dbg(wpa_s, MSG_DEBUG,
1940 "Allow reassociation due to difference in signal level (%d >= %d)",
1941 diff, min_diff);
1942 return 1;
1943 #else /* CONFIG_NO_ROAMING */
1944 return 0;
1945 #endif /* CONFIG_NO_ROAMING */
1946 }
1947
1948
1949 /*
1950 * Return a negative value if no scan results could be fetched or if scan
1951 * results should not be shared with other virtual interfaces.
1952 * Return 0 if scan results were fetched and may be shared with other
1953 * interfaces.
1954 * Return 1 if scan results may be shared with other virtual interfaces but may
1955 * not trigger any operations.
1956 * Return 2 if the interface was removed and cannot be used.
1957 */
1958 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1959 union wpa_event_data *data,
1960 int own_request, int update_only)
1961 {
1962 struct wpa_scan_results *scan_res = NULL;
1963 int ret = 0;
1964 int ap = 0;
1965 #ifndef CONFIG_NO_RANDOM_POOL
1966 size_t i, num;
1967 #endif /* CONFIG_NO_RANDOM_POOL */
1968
1969 #ifdef CONFIG_AP
1970 if (wpa_s->ap_iface)
1971 ap = 1;
1972 #endif /* CONFIG_AP */
1973
1974 wpa_supplicant_notify_scanning(wpa_s, 0);
1975
1976 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1977 data ? &data->scan_info :
1978 NULL, 1);
1979 if (scan_res == NULL) {
1980 if (wpa_s->conf->ap_scan == 2 || ap ||
1981 wpa_s->scan_res_handler == scan_only_handler)
1982 return -1;
1983 if (!own_request)
1984 return -1;
1985 if (data && data->scan_info.external_scan)
1986 return -1;
1987 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1988 "scanning again");
1989 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1990 ret = -1;
1991 goto scan_work_done;
1992 }
1993
1994 #ifndef CONFIG_NO_RANDOM_POOL
1995 num = scan_res->num;
1996 if (num > 10)
1997 num = 10;
1998 for (i = 0; i < num; i++) {
1999 u8 buf[5];
2000 struct wpa_scan_res *res = scan_res->res[i];
2001 buf[0] = res->bssid[5];
2002 buf[1] = res->qual & 0xff;
2003 buf[2] = res->noise & 0xff;
2004 buf[3] = res->level & 0xff;
2005 buf[4] = res->tsf & 0xff;
2006 random_add_randomness(buf, sizeof(buf));
2007 }
2008 #endif /* CONFIG_NO_RANDOM_POOL */
2009
2010 if (update_only) {
2011 ret = 1;
2012 goto scan_work_done;
2013 }
2014
2015 if (own_request && wpa_s->scan_res_handler &&
2016 !(data && data->scan_info.external_scan)) {
2017 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
2018 struct wpa_scan_results *scan_res);
2019
2020 scan_res_handler = wpa_s->scan_res_handler;
2021 wpa_s->scan_res_handler = NULL;
2022 scan_res_handler(wpa_s, scan_res);
2023 ret = 1;
2024 goto scan_work_done;
2025 }
2026
2027 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
2028 wpa_s->own_scan_running,
2029 data ? data->scan_info.external_scan : 0);
2030 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
2031 wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
2032 own_request && !(data && data->scan_info.external_scan)) {
2033 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
2034 wpa_s->manual_scan_id);
2035 wpa_s->manual_scan_use_id = 0;
2036 } else {
2037 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
2038 }
2039 wpas_notify_scan_results(wpa_s);
2040
2041 wpas_notify_scan_done(wpa_s, 1);
2042
2043 if (ap) {
2044 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
2045 #ifdef CONFIG_AP
2046 if (wpa_s->ap_iface->scan_cb)
2047 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
2048 #endif /* CONFIG_AP */
2049 goto scan_work_done;
2050 }
2051
2052 if (data && data->scan_info.external_scan) {
2053 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
2054 wpa_scan_results_free(scan_res);
2055 return 0;
2056 }
2057
2058 if (wnm_scan_process(wpa_s, 1) > 0)
2059 goto scan_work_done;
2060
2061 if (sme_proc_obss_scan(wpa_s, scan_res) > 0)
2062 goto scan_work_done;
2063
2064 if (own_request && data &&
2065 wpas_beacon_rep_scan_process(wpa_s, scan_res, &data->scan_info) > 0)
2066 goto scan_work_done;
2067
2068 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
2069 goto scan_work_done;
2070
2071 if (autoscan_notify_scan(wpa_s, scan_res))
2072 goto scan_work_done;
2073
2074 if (wpa_s->disconnected) {
2075 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2076 goto scan_work_done;
2077 }
2078
2079 if (!wpas_driver_bss_selection(wpa_s) &&
2080 bgscan_notify_scan(wpa_s, scan_res) == 1)
2081 goto scan_work_done;
2082
2083 wpas_wps_update_ap_info(wpa_s, scan_res);
2084
2085 if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
2086 wpa_s->wpa_state < WPA_COMPLETED)
2087 goto scan_work_done;
2088
2089 wpa_scan_results_free(scan_res);
2090
2091 if (own_request && wpa_s->scan_work) {
2092 struct wpa_radio_work *work = wpa_s->scan_work;
2093 wpa_s->scan_work = NULL;
2094 radio_work_done(work);
2095 }
2096
2097 os_free(wpa_s->last_scan_freqs);
2098 wpa_s->last_scan_freqs = NULL;
2099 wpa_s->num_last_scan_freqs = 0;
2100 if (own_request && data &&
2101 data->scan_info.freqs && data->scan_info.num_freqs) {
2102 wpa_s->last_scan_freqs = os_malloc(sizeof(int) *
2103 data->scan_info.num_freqs);
2104 if (wpa_s->last_scan_freqs) {
2105 os_memcpy(wpa_s->last_scan_freqs,
2106 data->scan_info.freqs,
2107 sizeof(int) * data->scan_info.num_freqs);
2108 wpa_s->num_last_scan_freqs = data->scan_info.num_freqs;
2109 }
2110 }
2111
2112 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
2113
2114 scan_work_done:
2115 wpa_scan_results_free(scan_res);
2116 if (own_request && wpa_s->scan_work) {
2117 struct wpa_radio_work *work = wpa_s->scan_work;
2118 wpa_s->scan_work = NULL;
2119 radio_work_done(work);
2120 }
2121 return ret;
2122 }
2123
2124
2125 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
2126 int new_scan, int own_request)
2127 {
2128 struct wpa_bss *selected;
2129 struct wpa_ssid *ssid = NULL;
2130 int time_to_reenable = wpas_reenabled_network_time(wpa_s);
2131
2132 if (time_to_reenable > 0) {
2133 wpa_dbg(wpa_s, MSG_DEBUG,
2134 "Postpone network selection by %d seconds since all networks are disabled",
2135 time_to_reenable);
2136 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2137 eloop_register_timeout(time_to_reenable, 0,
2138 wpas_network_reenabled, wpa_s, NULL);
2139 return 0;
2140 }
2141
2142 if (wpa_s->p2p_mgmt)
2143 return 0; /* no normal connection on p2p_mgmt interface */
2144
2145 wpa_s->owe_transition_search = 0;
2146 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
2147
2148 #ifdef CONFIG_MESH
2149 if (wpa_s->ifmsh) {
2150 wpa_msg(wpa_s, MSG_INFO,
2151 "Avoiding join because we already joined a mesh group");
2152 return 0;
2153 }
2154 #endif /* CONFIG_MESH */
2155
2156 if (selected) {
2157 int skip;
2158 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
2159 if (skip) {
2160 if (new_scan)
2161 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2162 return 0;
2163 }
2164
2165 wpa_s->suitable_network++;
2166
2167 if (ssid != wpa_s->current_ssid &&
2168 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2169 wpa_s->own_disconnect_req = 1;
2170 wpa_supplicant_deauthenticate(
2171 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2172 }
2173
2174 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
2175 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
2176 return -1;
2177 }
2178 if (new_scan)
2179 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2180 /*
2181 * Do not allow other virtual radios to trigger operations based
2182 * on these scan results since we do not want them to start
2183 * other associations at the same time.
2184 */
2185 return 1;
2186 } else {
2187 wpa_s->no_suitable_network++;
2188 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
2189 ssid = wpa_supplicant_pick_new_network(wpa_s);
2190 if (ssid) {
2191 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
2192 wpa_supplicant_associate(wpa_s, NULL, ssid);
2193 if (new_scan)
2194 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2195 } else if (own_request) {
2196 /*
2197 * No SSID found. If SCAN results are as a result of
2198 * own scan request and not due to a scan request on
2199 * another shared interface, try another scan.
2200 */
2201 int timeout_sec = wpa_s->scan_interval;
2202 int timeout_usec = 0;
2203 #ifdef CONFIG_P2P
2204 int res;
2205
2206 res = wpas_p2p_scan_no_go_seen(wpa_s);
2207 if (res == 2)
2208 return 2;
2209 if (res == 1)
2210 return 0;
2211
2212 if (wpa_s->p2p_in_provisioning ||
2213 wpa_s->show_group_started ||
2214 wpa_s->p2p_in_invitation) {
2215 /*
2216 * Use shorter wait during P2P Provisioning
2217 * state and during P2P join-a-group operation
2218 * to speed up group formation.
2219 */
2220 timeout_sec = 0;
2221 timeout_usec = 250000;
2222 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2223 timeout_usec);
2224 return 0;
2225 }
2226 #endif /* CONFIG_P2P */
2227 #ifdef CONFIG_INTERWORKING
2228 if (wpa_s->conf->auto_interworking &&
2229 wpa_s->conf->interworking &&
2230 wpa_s->conf->cred) {
2231 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
2232 "start ANQP fetch since no matching "
2233 "networks found");
2234 wpa_s->network_select = 1;
2235 wpa_s->auto_network_select = 1;
2236 interworking_start_fetch_anqp(wpa_s);
2237 return 1;
2238 }
2239 #endif /* CONFIG_INTERWORKING */
2240 #ifdef CONFIG_WPS
2241 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
2242 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
2243 timeout_sec = 0;
2244 timeout_usec = 500000;
2245 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2246 timeout_usec);
2247 return 0;
2248 }
2249 #endif /* CONFIG_WPS */
2250 #ifdef CONFIG_OWE
2251 if (wpa_s->owe_transition_search) {
2252 wpa_dbg(wpa_s, MSG_DEBUG,
2253 "OWE: Use shorter wait during transition mode search");
2254 timeout_sec = 0;
2255 timeout_usec = 500000;
2256 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2257 timeout_usec);
2258 return 0;
2259 }
2260 #endif /* CONFIG_OWE */
2261 if (wpa_supplicant_req_sched_scan(wpa_s))
2262 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2263 timeout_usec);
2264
2265 wpa_msg_ctrl(wpa_s, MSG_INFO,
2266 WPA_EVENT_NETWORK_NOT_FOUND);
2267 }
2268 }
2269 return 0;
2270 }
2271
2272
2273 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
2274 union wpa_event_data *data)
2275 {
2276 struct wpa_supplicant *ifs;
2277 int res;
2278
2279 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1, 0);
2280 if (res == 2) {
2281 /*
2282 * Interface may have been removed, so must not dereference
2283 * wpa_s after this.
2284 */
2285 return 1;
2286 }
2287
2288 if (res < 0) {
2289 /*
2290 * If no scan results could be fetched, then no need to
2291 * notify those interfaces that did not actually request
2292 * this scan. Similarly, if scan results started a new operation on this
2293 * interface, do not notify other interfaces to avoid concurrent
2294 * operations during a connection attempt.
2295 */
2296 return 0;
2297 }
2298
2299 /*
2300 * Check other interfaces to see if they share the same radio. If
2301 * so, they get updated with this same scan info.
2302 */
2303 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
2304 radio_list) {
2305 if (ifs != wpa_s) {
2306 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
2307 "sibling", ifs->ifname);
2308 res = _wpa_supplicant_event_scan_results(ifs, data, 0,
2309 res > 0);
2310 if (res < 0)
2311 return 0;
2312 }
2313 }
2314
2315 return 0;
2316 }
2317
2318 #endif /* CONFIG_NO_SCAN_PROCESSING */
2319
2320
2321 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
2322 {
2323 #ifdef CONFIG_NO_SCAN_PROCESSING
2324 return -1;
2325 #else /* CONFIG_NO_SCAN_PROCESSING */
2326 struct os_reltime now;
2327
2328 wpa_s->ignore_post_flush_scan_res = 0;
2329
2330 if (wpa_s->last_scan_res_used == 0)
2331 return -1;
2332
2333 os_get_reltime(&now);
2334 if (os_reltime_expired(&now, &wpa_s->last_scan,
2335 SCAN_RES_VALID_FOR_CONNECT)) {
2336 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
2337 return -1;
2338 }
2339
2340 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
2341 #endif /* CONFIG_NO_SCAN_PROCESSING */
2342 }
2343
2344 #ifdef CONFIG_WNM
2345
2346 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
2347 {
2348 struct wpa_supplicant *wpa_s = eloop_ctx;
2349
2350 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2351 return;
2352
2353 if (!wpa_s->no_keep_alive) {
2354 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
2355 MAC2STR(wpa_s->bssid));
2356 /* TODO: could skip this if normal data traffic has been sent */
2357 /* TODO: Consider using some more appropriate data frame for
2358 * this */
2359 if (wpa_s->l2)
2360 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
2361 (u8 *) "", 0);
2362 }
2363
2364 #ifdef CONFIG_SME
2365 if (wpa_s->sme.bss_max_idle_period) {
2366 unsigned int msec;
2367 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
2368 if (msec > 100)
2369 msec -= 100;
2370 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
2371 wnm_bss_keep_alive, wpa_s, NULL);
2372 }
2373 #endif /* CONFIG_SME */
2374 }
2375
2376
2377 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
2378 const u8 *ies, size_t ies_len)
2379 {
2380 struct ieee802_11_elems elems;
2381
2382 if (ies == NULL)
2383 return;
2384
2385 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
2386 return;
2387
2388 #ifdef CONFIG_SME
2389 if (elems.bss_max_idle_period) {
2390 unsigned int msec;
2391 wpa_s->sme.bss_max_idle_period =
2392 WPA_GET_LE16(elems.bss_max_idle_period);
2393 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
2394 "TU)%s", wpa_s->sme.bss_max_idle_period,
2395 (elems.bss_max_idle_period[2] & 0x01) ?
2396 " (protected keep-live required)" : "");
2397 if (wpa_s->sme.bss_max_idle_period == 0)
2398 wpa_s->sme.bss_max_idle_period = 1;
2399 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
2400 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
2401 /* msec times 1000 */
2402 msec = wpa_s->sme.bss_max_idle_period * 1024;
2403 if (msec > 100)
2404 msec -= 100;
2405 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
2406 wnm_bss_keep_alive, wpa_s,
2407 NULL);
2408 }
2409 }
2410 #endif /* CONFIG_SME */
2411 }
2412
2413 #endif /* CONFIG_WNM */
2414
2415
2416 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
2417 {
2418 #ifdef CONFIG_WNM
2419 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
2420 #endif /* CONFIG_WNM */
2421 }
2422
2423
2424 #ifdef CONFIG_INTERWORKING
2425
2426 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
2427 size_t len)
2428 {
2429 int res;
2430
2431 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
2432 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
2433 if (res) {
2434 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
2435 }
2436
2437 return res;
2438 }
2439
2440
2441 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
2442 const u8 *ies, size_t ies_len)
2443 {
2444 struct ieee802_11_elems elems;
2445
2446 if (ies == NULL)
2447 return;
2448
2449 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
2450 return;
2451
2452 if (elems.qos_map_set) {
2453 wpas_qos_map_set(wpa_s, elems.qos_map_set,
2454 elems.qos_map_set_len);
2455 }
2456 }
2457
2458 #endif /* CONFIG_INTERWORKING */
2459
2460
2461 static void multi_ap_process_assoc_resp(struct wpa_supplicant *wpa_s,
2462 const u8 *ies, size_t ies_len)
2463 {
2464 struct ieee802_11_elems elems;
2465 const u8 *map_sub_elem, *pos;
2466 size_t len;
2467
2468 wpa_s->multi_ap_ie = 0;
2469
2470 if (!ies ||
2471 ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed ||
2472 !elems.multi_ap || elems.multi_ap_len < 7)
2473 return;
2474
2475 pos = elems.multi_ap + 4;
2476 len = elems.multi_ap_len - 4;
2477
2478 map_sub_elem = get_ie(pos, len, MULTI_AP_SUB_ELEM_TYPE);
2479 if (!map_sub_elem || map_sub_elem[1] < 1)
2480 return;
2481
2482 wpa_s->multi_ap_backhaul = !!(map_sub_elem[2] & MULTI_AP_BACKHAUL_BSS);
2483 wpa_s->multi_ap_fronthaul = !!(map_sub_elem[2] &
2484 MULTI_AP_FRONTHAUL_BSS);
2485 wpa_s->multi_ap_ie = 1;
2486 }
2487
2488
2489 static void multi_ap_set_4addr_mode(struct wpa_supplicant *wpa_s)
2490 {
2491 if (!wpa_s->current_ssid ||
2492 !wpa_s->current_ssid->multi_ap_backhaul_sta)
2493 return;
2494
2495 if (!wpa_s->multi_ap_ie) {
2496 wpa_printf(MSG_INFO,
2497 "AP does not include valid Multi-AP element");
2498 goto fail;
2499 }
2500
2501 if (!wpa_s->multi_ap_backhaul) {
2502 if (wpa_s->multi_ap_fronthaul &&
2503 wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
2504 wpa_printf(MSG_INFO,
2505 "WPS active, accepting fronthaul-only BSS");
2506 /* Don't set 4addr mode in this case, so just return */
2507 return;
2508 }
2509 wpa_printf(MSG_INFO, "AP doesn't support backhaul BSS");
2510 goto fail;
2511 }
2512
2513 if (wpa_drv_set_4addr_mode(wpa_s, 1) < 0) {
2514 wpa_printf(MSG_ERROR, "Failed to set 4addr mode");
2515 goto fail;
2516 }
2517 wpa_s->enabled_4addr_mode = 1;
2518 return;
2519
2520 fail:
2521 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2522 }
2523
2524
2525 #ifdef CONFIG_FST
2526 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
2527 const u8 *ie, size_t ie_len)
2528 {
2529 struct mb_ies_info mb_ies;
2530
2531 if (!ie || !ie_len || !wpa_s->fst)
2532 return -ENOENT;
2533
2534 os_memset(&mb_ies, 0, sizeof(mb_ies));
2535
2536 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
2537 size_t len;
2538
2539 len = 2 + ie[1];
2540 if (len > ie_len) {
2541 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
2542 ie, ie_len);
2543 break;
2544 }
2545
2546 if (ie[0] == WLAN_EID_MULTI_BAND) {
2547 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
2548 (unsigned int) len);
2549 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
2550 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
2551 mb_ies.nof_ies++;
2552 }
2553
2554 ie_len -= len;
2555 ie += len;
2556 }
2557
2558 if (mb_ies.nof_ies > 0) {
2559 wpabuf_free(wpa_s->received_mb_ies);
2560 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
2561 return 0;
2562 }
2563
2564 return -ENOENT;
2565 }
2566 #endif /* CONFIG_FST */
2567
2568
2569 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
2570 union wpa_event_data *data)
2571 {
2572 int l, len, found = 0, found_x = 0, wpa_found, rsn_found;
2573 const u8 *p;
2574 #if defined(CONFIG_IEEE80211R) || defined(CONFIG_OWE)
2575 u8 bssid[ETH_ALEN];
2576 #endif /* CONFIG_IEEE80211R || CONFIG_OWE */
2577
2578 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
2579 if (data->assoc_info.req_ies)
2580 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
2581 data->assoc_info.req_ies_len);
2582 if (data->assoc_info.resp_ies) {
2583 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
2584 data->assoc_info.resp_ies_len);
2585 #ifdef CONFIG_TDLS
2586 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
2587 data->assoc_info.resp_ies_len);
2588 #endif /* CONFIG_TDLS */
2589 #ifdef CONFIG_WNM
2590 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2591 data->assoc_info.resp_ies_len);
2592 #endif /* CONFIG_WNM */
2593 #ifdef CONFIG_INTERWORKING
2594 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2595 data->assoc_info.resp_ies_len);
2596 #endif /* CONFIG_INTERWORKING */
2597 if (wpa_s->hw_capab == CAPAB_VHT &&
2598 get_ie(data->assoc_info.resp_ies,
2599 data->assoc_info.resp_ies_len, WLAN_EID_VHT_CAP))
2600 wpa_s->ieee80211ac = 1;
2601
2602 multi_ap_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2603 data->assoc_info.resp_ies_len);
2604 }
2605 if (data->assoc_info.beacon_ies)
2606 wpa_hexdump(MSG_DEBUG, "beacon_ies",
2607 data->assoc_info.beacon_ies,
2608 data->assoc_info.beacon_ies_len);
2609 if (data->assoc_info.freq)
2610 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
2611 data->assoc_info.freq);
2612
2613 wpa_s->connection_set = 0;
2614 if (data->assoc_info.req_ies && data->assoc_info.resp_ies) {
2615 struct ieee802_11_elems req_elems, resp_elems;
2616
2617 if (ieee802_11_parse_elems(data->assoc_info.req_ies,
2618 data->assoc_info.req_ies_len,
2619 &req_elems, 0) != ParseFailed &&
2620 ieee802_11_parse_elems(data->assoc_info.resp_ies,
2621 data->assoc_info.resp_ies_len,
2622 &resp_elems, 0) != ParseFailed) {
2623 wpa_s->connection_set = 1;
2624 wpa_s->connection_ht = req_elems.ht_capabilities &&
2625 resp_elems.ht_capabilities;
2626 /* Do not include subset of VHT on 2.4 GHz vendor
2627 * extension in consideration for reporting VHT
2628 * association. */
2629 wpa_s->connection_vht = req_elems.vht_capabilities &&
2630 resp_elems.vht_capabilities &&
2631 (!data->assoc_info.freq ||
2632 wpas_freq_to_band(data->assoc_info.freq) !=
2633 BAND_2_4_GHZ);
2634 wpa_s->connection_he = req_elems.he_capabilities &&
2635 resp_elems.he_capabilities;
2636 }
2637 }
2638
2639 p = data->assoc_info.req_ies;
2640 l = data->assoc_info.req_ies_len;
2641
2642 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
2643 while (p && l >= 2) {
2644 len = p[1] + 2;
2645 if (len > l) {
2646 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2647 p, l);
2648 break;
2649 }
2650 if (!found &&
2651 ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2652 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
2653 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
2654 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
2655 (p[0] == WLAN_EID_RSN && p[1] >= 2))) {
2656 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
2657 break;
2658 found = 1;
2659 wpa_find_assoc_pmkid(wpa_s);
2660 }
2661 if (!found_x && p[0] == WLAN_EID_RSNX) {
2662 if (wpa_sm_set_assoc_rsnxe(wpa_s->wpa, p, len))
2663 break;
2664 found_x = 1;
2665 }
2666 l -= len;
2667 p += len;
2668 }
2669 if (!found && data->assoc_info.req_ies)
2670 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2671 if (!found_x && data->assoc_info.req_ies)
2672 wpa_sm_set_assoc_rsnxe(wpa_s->wpa, NULL, 0);
2673
2674 #ifdef CONFIG_FILS
2675 #ifdef CONFIG_SME
2676 if ((wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS ||
2677 wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS_SK_PFS) &&
2678 (!data->assoc_info.resp_frame ||
2679 fils_process_assoc_resp(wpa_s->wpa,
2680 data->assoc_info.resp_frame,
2681 data->assoc_info.resp_frame_len) < 0)) {
2682 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
2683 return -1;
2684 }
2685 #endif /* CONFIG_SME */
2686
2687 /* Additional processing for FILS when SME is in driver */
2688 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS &&
2689 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2690 wpa_sm_set_reset_fils_completed(wpa_s->wpa, 1);
2691 #endif /* CONFIG_FILS */
2692
2693 #ifdef CONFIG_OWE
2694 if (wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
2695 (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2696 owe_process_assoc_resp(wpa_s->wpa, bssid,
2697 data->assoc_info.resp_ies,
2698 data->assoc_info.resp_ies_len) < 0)) {
2699 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
2700 return -1;
2701 }
2702 #endif /* CONFIG_OWE */
2703
2704 #ifdef CONFIG_DPP2
2705 wpa_sm_set_dpp_z(wpa_s->wpa, NULL);
2706 if (wpa_s->key_mgmt == WPA_KEY_MGMT_DPP && wpa_s->dpp_pfs) {
2707 struct ieee802_11_elems elems;
2708
2709 if (ieee802_11_parse_elems(data->assoc_info.resp_ies,
2710 data->assoc_info.resp_ies_len,
2711 &elems, 0) == ParseFailed ||
2712 !elems.owe_dh)
2713 goto no_pfs;
2714 if (dpp_pfs_process(wpa_s->dpp_pfs, elems.owe_dh,
2715 elems.owe_dh_len) < 0) {
2716 wpa_supplicant_deauthenticate(wpa_s,
2717 WLAN_REASON_UNSPECIFIED);
2718 return -1;
2719 }
2720
2721 wpa_sm_set_dpp_z(wpa_s->wpa, wpa_s->dpp_pfs->secret);
2722 }
2723 no_pfs:
2724 #endif /* CONFIG_DPP2 */
2725
2726 #ifdef CONFIG_IEEE80211R
2727 #ifdef CONFIG_SME
2728 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
2729 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2730 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2731 data->assoc_info.resp_ies,
2732 data->assoc_info.resp_ies_len,
2733 bssid) < 0) {
2734 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2735 "Reassociation Response failed");
2736 wpa_supplicant_deauthenticate(
2737 wpa_s, WLAN_REASON_INVALID_IE);
2738 return -1;
2739 }
2740 }
2741
2742 p = data->assoc_info.resp_ies;
2743 l = data->assoc_info.resp_ies_len;
2744
2745 #ifdef CONFIG_WPS_STRICT
2746 if (p && wpa_s->current_ssid &&
2747 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
2748 struct wpabuf *wps;
2749 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
2750 if (wps == NULL) {
2751 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
2752 "include WPS IE in (Re)Association Response");
2753 return -1;
2754 }
2755
2756 if (wps_validate_assoc_resp(wps) < 0) {
2757 wpabuf_free(wps);
2758 wpa_supplicant_deauthenticate(
2759 wpa_s, WLAN_REASON_INVALID_IE);
2760 return -1;
2761 }
2762 wpabuf_free(wps);
2763 }
2764 #endif /* CONFIG_WPS_STRICT */
2765
2766 /* Go through the IEs and make a copy of the MDIE, if present. */
2767 while (p && l >= 2) {
2768 len = p[1] + 2;
2769 if (len > l) {
2770 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2771 p, l);
2772 break;
2773 }
2774 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
2775 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
2776 wpa_s->sme.ft_used = 1;
2777 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
2778 MOBILITY_DOMAIN_ID_LEN);
2779 break;
2780 }
2781 l -= len;
2782 p += len;
2783 }
2784 #endif /* CONFIG_SME */
2785
2786 /* Process FT when SME is in the driver */
2787 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
2788 wpa_ft_is_completed(wpa_s->wpa)) {
2789 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2790 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2791 data->assoc_info.resp_ies,
2792 data->assoc_info.resp_ies_len,
2793 bssid) < 0) {
2794 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2795 "Reassociation Response failed");
2796 wpa_supplicant_deauthenticate(
2797 wpa_s, WLAN_REASON_INVALID_IE);
2798 return -1;
2799 }
2800 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
2801 }
2802
2803 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
2804 data->assoc_info.resp_ies_len);
2805 #endif /* CONFIG_IEEE80211R */
2806
2807 /* WPA/RSN IE from Beacon/ProbeResp */
2808 p = data->assoc_info.beacon_ies;
2809 l = data->assoc_info.beacon_ies_len;
2810
2811 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
2812 */
2813 wpa_found = rsn_found = 0;
2814 while (p && l >= 2) {
2815 len = p[1] + 2;
2816 if (len > l) {
2817 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
2818 p, l);
2819 break;
2820 }
2821 if (!wpa_found &&
2822 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2823 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
2824 wpa_found = 1;
2825 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
2826 }
2827
2828 if (!rsn_found &&
2829 p[0] == WLAN_EID_RSN && p[1] >= 2) {
2830 rsn_found = 1;
2831 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
2832 }
2833
2834 if (p[0] == WLAN_EID_RSNX && p[1] >= 1)
2835 wpa_sm_set_ap_rsnxe(wpa_s->wpa, p, len);
2836
2837 l -= len;
2838 p += len;
2839 }
2840
2841 if (!wpa_found && data->assoc_info.beacon_ies)
2842 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
2843 if (!rsn_found && data->assoc_info.beacon_ies) {
2844 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
2845 wpa_sm_set_ap_rsnxe(wpa_s->wpa, NULL, 0);
2846 }
2847 if (wpa_found || rsn_found)
2848 wpa_s->ap_ies_from_associnfo = 1;
2849
2850 if (wpa_s->assoc_freq && data->assoc_info.freq &&
2851 wpa_s->assoc_freq != data->assoc_info.freq) {
2852 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
2853 "%u to %u MHz",
2854 wpa_s->assoc_freq, data->assoc_info.freq);
2855 wpa_supplicant_update_scan_results(wpa_s);
2856 }
2857
2858 wpa_s->assoc_freq = data->assoc_info.freq;
2859
2860 return 0;
2861 }
2862
2863
2864 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
2865 {
2866 const u8 *bss_wpa = NULL, *bss_rsn = NULL, *bss_rsnx = NULL;
2867
2868 if (!wpa_s->current_bss || !wpa_s->current_ssid)
2869 return -1;
2870
2871 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
2872 return 0;
2873
2874 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
2875 WPA_IE_VENDOR_TYPE);
2876 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
2877 bss_rsnx = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSNX);
2878
2879 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
2880 bss_wpa ? 2 + bss_wpa[1] : 0) ||
2881 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
2882 bss_rsn ? 2 + bss_rsn[1] : 0) ||
2883 wpa_sm_set_ap_rsnxe(wpa_s->wpa, bss_rsnx,
2884 bss_rsnx ? 2 + bss_rsnx[1] : 0))
2885 return -1;
2886
2887 return 0;
2888 }
2889
2890
2891 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
2892 union wpa_event_data *data)
2893 {
2894 #ifdef CONFIG_FST
2895 struct assoc_info *ai = data ? &data->assoc_info : NULL;
2896 struct wpa_bss *bss = wpa_s->current_bss;
2897 const u8 *ieprb, *iebcn;
2898
2899 wpabuf_free(wpa_s->received_mb_ies);
2900 wpa_s->received_mb_ies = NULL;
2901
2902 if (ai &&
2903 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
2904 wpa_printf(MSG_DEBUG,
2905 "FST: MB IEs updated from Association Response frame");
2906 return;
2907 }
2908
2909 if (ai &&
2910 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
2911 wpa_printf(MSG_DEBUG,
2912 "FST: MB IEs updated from association event Beacon IEs");
2913 return;
2914 }
2915
2916 if (!bss)
2917 return;
2918
2919 ieprb = (const u8 *) (bss + 1);
2920 iebcn = ieprb + bss->ie_len;
2921
2922 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
2923 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
2924 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
2925 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
2926 #endif /* CONFIG_FST */
2927 }
2928
2929
2930 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
2931 union wpa_event_data *data)
2932 {
2933 u8 bssid[ETH_ALEN];
2934 int ft_completed, already_authorized;
2935 int new_bss = 0;
2936 #if defined(CONFIG_FILS) || defined(CONFIG_MBO)
2937 struct wpa_bss *bss;
2938 #endif /* CONFIG_FILS || CONFIG_MBO */
2939
2940 #ifdef CONFIG_AP
2941 if (wpa_s->ap_iface) {
2942 if (!data)
2943 return;
2944 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
2945 data->assoc_info.addr,
2946 data->assoc_info.req_ies,
2947 data->assoc_info.req_ies_len,
2948 data->assoc_info.reassoc);
2949 return;
2950 }
2951 #endif /* CONFIG_AP */
2952
2953 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2954 wpa_s->own_reconnect_req = 0;
2955
2956 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
2957 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
2958 return;
2959 /*
2960 * FILS authentication can share the same mechanism to mark the
2961 * connection fully authenticated, so set ft_completed also based on
2962 * FILS result.
2963 */
2964 if (!ft_completed)
2965 ft_completed = wpa_fils_is_completed(wpa_s->wpa);
2966
2967 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
2968 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
2969 wpa_supplicant_deauthenticate(
2970 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2971 return;
2972 }
2973
2974 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
2975 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
2976 if (os_reltime_initialized(&wpa_s->session_start)) {
2977 os_reltime_age(&wpa_s->session_start,
2978 &wpa_s->session_length);
2979 wpa_s->session_start.sec = 0;
2980 wpa_s->session_start.usec = 0;
2981 wpas_notify_session_length(wpa_s);
2982 } else {
2983 wpas_notify_auth_changed(wpa_s);
2984 os_get_reltime(&wpa_s->session_start);
2985 }
2986 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
2987 MACSTR, MAC2STR(bssid));
2988 new_bss = 1;
2989 random_add_randomness(bssid, ETH_ALEN);
2990 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
2991 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2992 wpas_notify_bssid_changed(wpa_s);
2993
2994 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
2995 wpa_clear_keys(wpa_s, bssid);
2996 }
2997 if (wpa_supplicant_select_config(wpa_s) < 0) {
2998 wpa_supplicant_deauthenticate(
2999 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3000 return;
3001 }
3002 }
3003
3004 multi_ap_set_4addr_mode(wpa_s);
3005
3006 if (wpa_s->conf->ap_scan == 1 &&
3007 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
3008 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
3009 wpa_msg(wpa_s, MSG_WARNING,
3010 "WPA/RSN IEs not updated");
3011 }
3012
3013 wpas_fst_update_mb_assoc(wpa_s, data);
3014
3015 #ifdef CONFIG_SME
3016 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
3017 wpa_s->sme.prev_bssid_set = 1;
3018 wpa_s->sme.last_unprot_disconnect.sec = 0;
3019 #endif /* CONFIG_SME */
3020
3021 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
3022 if (wpa_s->current_ssid) {
3023 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
3024 * initialized before association, but for other modes,
3025 * initialize PC/SC here, if the current configuration needs
3026 * smartcard or SIM/USIM. */
3027 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
3028 }
3029 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
3030 if (wpa_s->l2)
3031 l2_packet_notify_auth_start(wpa_s->l2);
3032
3033 already_authorized = data && data->assoc_info.authorized;
3034
3035 /*
3036 * Set portEnabled first to FALSE in order to get EAP state machine out
3037 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
3038 * state machine may transit to AUTHENTICATING state based on obsolete
3039 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
3040 * AUTHENTICATED without ever giving chance to EAP state machine to
3041 * reset the state.
3042 */
3043 if (!ft_completed && !already_authorized) {
3044 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
3045 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
3046 }
3047 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3048 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP ||
3049 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE || ft_completed ||
3050 already_authorized || wpa_s->drv_authorized_port)
3051 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
3052 /* 802.1X::portControl = Auto */
3053 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
3054 wpa_s->eapol_received = 0;
3055 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
3056 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
3057 (wpa_s->current_ssid &&
3058 wpa_s->current_ssid->mode == WPAS_MODE_IBSS)) {
3059 if (wpa_s->current_ssid &&
3060 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
3061 (wpa_s->drv_flags &
3062 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
3063 /*
3064 * Set the key after having received joined-IBSS event
3065 * from the driver.
3066 */
3067 wpa_supplicant_set_wpa_none_key(wpa_s,
3068 wpa_s->current_ssid);
3069 }
3070 wpa_supplicant_cancel_auth_timeout(wpa_s);
3071 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3072 } else if (!ft_completed) {
3073 /* Timeout for receiving the first EAPOL packet */
3074 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
3075 }
3076 wpa_supplicant_cancel_scan(wpa_s);
3077
3078 if (ft_completed) {
3079 /*
3080 * FT protocol completed - make sure EAPOL state machine ends
3081 * up in authenticated.
3082 */
3083 wpa_supplicant_cancel_auth_timeout(wpa_s);
3084 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3085 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3086 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
3087 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK) &&
3088 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
3089 /*
3090 * We are done; the driver will take care of RSN 4-way
3091 * handshake.
3092 */
3093 wpa_supplicant_cancel_auth_timeout(wpa_s);
3094 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3095 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3096 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
3097 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X) &&
3098 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
3099 /*
3100 * The driver will take care of RSN 4-way handshake, so we need
3101 * to allow EAPOL supplicant to complete its work without
3102 * waiting for WPA supplicant.
3103 */
3104 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3105 }
3106
3107 wpa_s->last_eapol_matches_bssid = 0;
3108
3109 #ifdef CONFIG_TESTING_OPTIONS
3110 if (wpa_s->rsne_override_eapol) {
3111 wpa_printf(MSG_DEBUG,
3112 "TESTING: RSNE EAPOL-Key msg 2/4 override");
3113 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa,
3114 wpabuf_head(wpa_s->rsne_override_eapol),
3115 wpabuf_len(wpa_s->rsne_override_eapol));
3116 }
3117 if (wpa_s->rsnxe_override_eapol) {
3118 wpa_printf(MSG_DEBUG,
3119 "TESTING: RSNXE EAPOL-Key msg 2/4 override");
3120 wpa_sm_set_assoc_rsnxe(wpa_s->wpa,
3121 wpabuf_head(wpa_s->rsnxe_override_eapol),
3122 wpabuf_len(wpa_s->rsnxe_override_eapol));
3123 }
3124 #endif /* CONFIG_TESTING_OPTIONS */
3125
3126 if (wpa_s->pending_eapol_rx) {
3127 struct os_reltime now, age;
3128 os_get_reltime(&now);
3129 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
3130 if (age.sec == 0 && age.usec < 200000 &&
3131 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
3132 0) {
3133 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
3134 "frame that was received just before "
3135 "association notification");
3136 wpa_supplicant_rx_eapol(
3137 wpa_s, wpa_s->pending_eapol_rx_src,
3138 wpabuf_head(wpa_s->pending_eapol_rx),
3139 wpabuf_len(wpa_s->pending_eapol_rx));
3140 }
3141 wpabuf_free(wpa_s->pending_eapol_rx);
3142 wpa_s->pending_eapol_rx = NULL;
3143 }
3144
3145 #ifdef CONFIG_WEP
3146 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
3147 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
3148 wpa_s->current_ssid &&
3149 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
3150 /* Set static WEP keys again */
3151 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
3152 }
3153 #endif /* CONFIG_WEP */
3154
3155 #ifdef CONFIG_IBSS_RSN
3156 if (wpa_s->current_ssid &&
3157 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3158 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
3159 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
3160 wpa_s->ibss_rsn == NULL) {
3161 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s, wpa_s->current_ssid);
3162 if (!wpa_s->ibss_rsn) {
3163 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
3164 wpa_supplicant_deauthenticate(
3165 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3166 return;
3167 }
3168
3169 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
3170 }
3171 #endif /* CONFIG_IBSS_RSN */
3172
3173 wpas_wps_notify_assoc(wpa_s, bssid);
3174
3175 if (data) {
3176 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
3177 data->assoc_info.resp_ies_len,
3178 &data->assoc_info.wmm_params);
3179
3180 if (wpa_s->reassoc_same_bss)
3181 wmm_ac_restore_tspecs(wpa_s);
3182 }
3183
3184 #if defined(CONFIG_FILS) || defined(CONFIG_MBO)
3185 bss = wpa_bss_get_bssid(wpa_s, bssid);
3186 #endif /* CONFIG_FILS || CONFIG_MBO */
3187 #ifdef CONFIG_FILS
3188 if (wpa_key_mgmt_fils(wpa_s->key_mgmt)) {
3189 const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
3190
3191 if (fils_cache_id)
3192 wpa_sm_set_fils_cache_id(wpa_s->wpa, fils_cache_id);
3193 }
3194 #endif /* CONFIG_FILS */
3195
3196 #ifdef CONFIG_MBO
3197 wpas_mbo_check_pmf(wpa_s, bss, wpa_s->current_ssid);
3198 #endif /* CONFIG_MBO */
3199
3200 #ifdef CONFIG_DPP2
3201 wpa_s->dpp_pfs_fallback = 0;
3202 #endif /* CONFIG_DPP2 */
3203 }
3204
3205
3206 static int disconnect_reason_recoverable(u16 reason_code)
3207 {
3208 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
3209 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
3210 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
3211 }
3212
3213
3214 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
3215 u16 reason_code,
3216 int locally_generated)
3217 {
3218 const u8 *bssid;
3219
3220 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
3221 /*
3222 * At least Host AP driver and a Prism3 card seemed to be
3223 * generating streams of disconnected events when configuring
3224 * IBSS for WPA-None. Ignore them for now.
3225 */
3226 return;
3227 }
3228
3229 bssid = wpa_s->bssid;
3230 if (is_zero_ether_addr(bssid))
3231 bssid = wpa_s->pending_bssid;
3232
3233 if (!is_zero_ether_addr(bssid) ||
3234 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3235 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
3236 " reason=%d%s",
3237 MAC2STR(bssid), reason_code,
3238 locally_generated ? " locally_generated=1" : "");
3239 }
3240 }
3241
3242
3243 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
3244 int locally_generated)
3245 {
3246 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
3247 !wpa_s->new_connection ||
3248 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3249 wpa_key_mgmt_sae(wpa_s->key_mgmt))
3250 return 0; /* Not in initial 4-way handshake with PSK */
3251
3252 /*
3253 * It looks like connection was lost while trying to go through PSK
3254 * 4-way handshake. Filter out known disconnection cases that are caused
3255 * by something else than PSK mismatch to avoid confusing reports.
3256 */
3257
3258 if (locally_generated) {
3259 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
3260 return 0;
3261 }
3262
3263 return 1;
3264 }
3265
3266
3267 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
3268 u16 reason_code,
3269 int locally_generated)
3270 {
3271 const u8 *bssid;
3272 int authenticating;
3273 u8 prev_pending_bssid[ETH_ALEN];
3274 struct wpa_bss *fast_reconnect = NULL;
3275 struct wpa_ssid *fast_reconnect_ssid = NULL;
3276 struct wpa_ssid *last_ssid;
3277 struct wpa_bss *curr = NULL;
3278
3279 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
3280 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
3281
3282 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
3283 /*
3284 * At least Host AP driver and a Prism3 card seemed to be
3285 * generating streams of disconnected events when configuring
3286 * IBSS for WPA-None. Ignore them for now.
3287 */
3288 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
3289 "IBSS/WPA-None mode");
3290 return;
3291 }
3292
3293 if (!wpa_s->disconnected && wpa_s->wpa_state >= WPA_AUTHENTICATING &&
3294 reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY &&
3295 locally_generated)
3296 /*
3297 * Remove the inactive AP (which is probably out of range) from
3298 * the BSS list after marking disassociation. In particular
3299 * mac80211-based drivers use the
3300 * WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in
3301 * locally generated disconnection events for cases where the
3302 * AP does not reply anymore.
3303 */
3304 curr = wpa_s->current_bss;
3305
3306 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
3307 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
3308 "pre-shared key may be incorrect");
3309 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
3310 return; /* P2P group removed */
3311 wpas_auth_failed(wpa_s, "WRONG_KEY");
3312 #ifdef CONFIG_DPP2
3313 wpas_dpp_send_conn_status_result(wpa_s,
3314 DPP_STATUS_AUTH_FAILURE);
3315 #endif /* CONFIG_DPP2 */
3316 }
3317 if (!wpa_s->disconnected &&
3318 (!wpa_s->auto_reconnect_disabled ||
3319 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
3320 wpas_wps_searching(wpa_s) ||
3321 wpas_wps_reenable_networks_pending(wpa_s))) {
3322 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
3323 "reconnect (wps=%d/%d wpa_state=%d)",
3324 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
3325 wpas_wps_searching(wpa_s),
3326 wpa_s->wpa_state);
3327 if (wpa_s->wpa_state == WPA_COMPLETED &&
3328 wpa_s->current_ssid &&
3329 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
3330 (wpa_s->own_reconnect_req ||
3331 (!locally_generated &&
3332 disconnect_reason_recoverable(reason_code)))) {
3333 /*
3334 * It looks like the AP has dropped association with
3335 * us, but could allow us to get back in. This is also
3336 * triggered for cases where local reconnection request
3337 * is used to force reassociation with the same BSS.
3338 * Try to reconnect to the same BSS without a full scan
3339 * to save time for some common cases.
3340 */
3341 fast_reconnect = wpa_s->current_bss;
3342 fast_reconnect_ssid = wpa_s->current_ssid;
3343 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) {
3344 wpa_supplicant_req_scan(wpa_s, 0, 100000);
3345 } else {
3346 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
3347 "immediate scan");
3348 }
3349 } else {
3350 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
3351 "try to re-connect");
3352 wpa_s->reassociate = 0;
3353 wpa_s->disconnected = 1;
3354 if (!wpa_s->pno)
3355 wpa_supplicant_cancel_sched_scan(wpa_s);
3356 }
3357 bssid = wpa_s->bssid;
3358 if (is_zero_ether_addr(bssid))
3359 bssid = wpa_s->pending_bssid;
3360 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
3361 wpas_connection_failed(wpa_s, bssid);
3362 wpa_sm_notify_disassoc(wpa_s->wpa);
3363 if (locally_generated)
3364 wpa_s->disconnect_reason = -reason_code;
3365 else
3366 wpa_s->disconnect_reason = reason_code;
3367 wpas_notify_disconnect_reason(wpa_s);
3368 if (wpa_supplicant_dynamic_keys(wpa_s)) {
3369 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
3370 wpa_clear_keys(wpa_s, wpa_s->bssid);
3371 }
3372 last_ssid = wpa_s->current_ssid;
3373 wpa_supplicant_mark_disassoc(wpa_s);
3374
3375 if (curr)
3376 wpa_bss_remove(wpa_s, curr, "Connection to AP lost");
3377
3378 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
3379 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
3380 wpa_s->current_ssid = last_ssid;
3381 }
3382
3383 if (fast_reconnect &&
3384 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
3385 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
3386 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
3387 fast_reconnect->ssid_len) &&
3388 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
3389 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect)) {
3390 #ifndef CONFIG_NO_SCAN_PROCESSING
3391 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
3392 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
3393 fast_reconnect_ssid) < 0) {
3394 /* Recover through full scan */
3395 wpa_supplicant_req_scan(wpa_s, 0, 100000);
3396 }
3397 #endif /* CONFIG_NO_SCAN_PROCESSING */
3398 } else if (fast_reconnect) {
3399 /*
3400 * Could not reconnect to the same BSS due to network being
3401 * disabled. Use a new scan to match the alternative behavior
3402 * above, i.e., to continue automatic reconnection attempt in a
3403 * way that enforces disabled network rules.
3404 */
3405 wpa_supplicant_req_scan(wpa_s, 0, 100000);
3406 }
3407 }
3408
3409
3410 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
3411 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
3412 {
3413 struct wpa_supplicant *wpa_s = eloop_ctx;
3414
3415 if (!wpa_s->pending_mic_error_report)
3416 return;
3417
3418 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
3419 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
3420 wpa_s->pending_mic_error_report = 0;
3421 }
3422 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3423
3424
3425 static void
3426 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
3427 union wpa_event_data *data)
3428 {
3429 int pairwise;
3430 struct os_reltime t;
3431
3432 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
3433 pairwise = (data && data->michael_mic_failure.unicast);
3434 os_get_reltime(&t);
3435 if ((wpa_s->last_michael_mic_error.sec &&
3436 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
3437 wpa_s->pending_mic_error_report) {
3438 if (wpa_s->pending_mic_error_report) {
3439 /*
3440 * Send the pending MIC error report immediately since
3441 * we are going to start countermeasures and AP better
3442 * do the same.
3443 */
3444 wpa_sm_key_request(wpa_s->wpa, 1,
3445 wpa_s->pending_mic_error_pairwise);
3446 }
3447
3448 /* Send the new MIC error report immediately since we are going
3449 * to start countermeasures and AP better do the same.
3450 */
3451 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3452
3453 /* initialize countermeasures */
3454 wpa_s->countermeasures = 1;
3455
3456 wpa_blacklist_add(wpa_s, wpa_s->bssid);
3457
3458 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
3459
3460 /*
3461 * Need to wait for completion of request frame. We do not get
3462 * any callback for the message completion, so just wait a
3463 * short while and hope for the best. */
3464 os_sleep(0, 10000);
3465
3466 wpa_drv_set_countermeasures(wpa_s, 1);
3467 wpa_supplicant_deauthenticate(wpa_s,
3468 WLAN_REASON_MICHAEL_MIC_FAILURE);
3469 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
3470 wpa_s, NULL);
3471 eloop_register_timeout(60, 0,
3472 wpa_supplicant_stop_countermeasures,
3473 wpa_s, NULL);
3474 /* TODO: mark the AP rejected for 60 second. STA is
3475 * allowed to associate with another AP.. */
3476 } else {
3477 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
3478 if (wpa_s->mic_errors_seen) {
3479 /*
3480 * Reduce the effectiveness of Michael MIC error
3481 * reports as a means for attacking against TKIP if
3482 * more than one MIC failure is noticed with the same
3483 * PTK. We delay the transmission of the reports by a
3484 * random time between 0 and 60 seconds in order to
3485 * force the attacker wait 60 seconds before getting
3486 * the information on whether a frame resulted in a MIC
3487 * failure.
3488 */
3489 u8 rval[4];
3490 int sec;
3491
3492 if (os_get_random(rval, sizeof(rval)) < 0)
3493 sec = os_random() % 60;
3494 else
3495 sec = WPA_GET_BE32(rval) % 60;
3496 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
3497 "report %d seconds", sec);
3498 wpa_s->pending_mic_error_report = 1;
3499 wpa_s->pending_mic_error_pairwise = pairwise;
3500 eloop_cancel_timeout(
3501 wpa_supplicant_delayed_mic_error_report,
3502 wpa_s, NULL);
3503 eloop_register_timeout(
3504 sec, os_random() % 1000000,
3505 wpa_supplicant_delayed_mic_error_report,
3506 wpa_s, NULL);
3507 } else {
3508 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3509 }
3510 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3511 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3512 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3513 }
3514 wpa_s->last_michael_mic_error = t;
3515 wpa_s->mic_errors_seen++;
3516 }
3517
3518
3519 #ifdef CONFIG_TERMINATE_ONLASTIF
3520 static int any_interfaces(struct wpa_supplicant *head)
3521 {
3522 struct wpa_supplicant *wpa_s;
3523
3524 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
3525 if (!wpa_s->interface_removed)
3526 return 1;
3527 return 0;
3528 }
3529 #endif /* CONFIG_TERMINATE_ONLASTIF */
3530
3531
3532 static void
3533 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
3534 union wpa_event_data *data)
3535 {
3536 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
3537 return;
3538
3539 switch (data->interface_status.ievent) {
3540 case EVENT_INTERFACE_ADDED:
3541 if (!wpa_s->interface_removed)
3542 break;
3543 wpa_s->interface_removed = 0;
3544 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
3545 if (wpa_supplicant_driver_init(wpa_s) < 0) {
3546 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
3547 "driver after interface was added");
3548 }
3549
3550 #ifdef CONFIG_P2P
3551 if (!wpa_s->global->p2p &&
3552 !wpa_s->global->p2p_disabled &&
3553 !wpa_s->conf->p2p_disabled &&
3554 (wpa_s->drv_flags &
3555 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
3556 wpas_p2p_add_p2pdev_interface(
3557 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
3558 wpa_printf(MSG_INFO,
3559 "P2P: Failed to enable P2P Device interface");
3560 /* Try to continue without. P2P will be disabled. */
3561 }
3562 #endif /* CONFIG_P2P */
3563
3564 break;
3565 case EVENT_INTERFACE_REMOVED:
3566 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
3567 wpa_s->interface_removed = 1;
3568 wpa_supplicant_mark_disassoc(wpa_s);
3569 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3570 l2_packet_deinit(wpa_s->l2);
3571 wpa_s->l2 = NULL;
3572
3573 #ifdef CONFIG_P2P
3574 if (wpa_s->global->p2p &&
3575 wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
3576 (wpa_s->drv_flags &
3577 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
3578 wpa_dbg(wpa_s, MSG_DEBUG,
3579 "Removing P2P Device interface");
3580 wpa_supplicant_remove_iface(
3581 wpa_s->global, wpa_s->global->p2p_init_wpa_s,
3582 0);
3583 wpa_s->global->p2p_init_wpa_s = NULL;
3584 }
3585 #endif /* CONFIG_P2P */
3586
3587 #ifdef CONFIG_MATCH_IFACE
3588 if (wpa_s->matched) {
3589 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
3590 break;
3591 }
3592 #endif /* CONFIG_MATCH_IFACE */
3593
3594 #ifdef CONFIG_TERMINATE_ONLASTIF
3595 /* check if last interface */
3596 if (!any_interfaces(wpa_s->global->ifaces))
3597 eloop_terminate();
3598 #endif /* CONFIG_TERMINATE_ONLASTIF */
3599 break;
3600 }
3601 }
3602
3603
3604 #ifdef CONFIG_TDLS
3605 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
3606 union wpa_event_data *data)
3607 {
3608 if (data == NULL)
3609 return;
3610 switch (data->tdls.oper) {
3611 case TDLS_REQUEST_SETUP:
3612 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
3613 if (wpa_tdls_is_external_setup(wpa_s->wpa))
3614 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
3615 else
3616 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
3617 break;
3618 case TDLS_REQUEST_TEARDOWN:
3619 if (wpa_tdls_is_external_setup(wpa_s->wpa))
3620 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
3621 data->tdls.reason_code);
3622 else
3623 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
3624 data->tdls.peer);
3625 break;
3626 case TDLS_REQUEST_DISCOVER:
3627 wpa_tdls_send_discovery_request(wpa_s->wpa,
3628 data->tdls.peer);
3629 break;
3630 }
3631 }
3632 #endif /* CONFIG_TDLS */
3633
3634
3635 #ifdef CONFIG_WNM
3636 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
3637 union wpa_event_data *data)
3638 {
3639 if (data == NULL)
3640 return;
3641 switch (data->wnm.oper) {
3642 case WNM_OPER_SLEEP:
3643 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
3644 "(action=%d, intval=%d)",
3645 data->wnm.sleep_action, data->wnm.sleep_intval);
3646 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
3647 data->wnm.sleep_intval, NULL);
3648 break;
3649 }
3650 }
3651 #endif /* CONFIG_WNM */
3652
3653
3654 #ifdef CONFIG_IEEE80211R
3655 static void
3656 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
3657 union wpa_event_data *data)
3658 {
3659 if (data == NULL)
3660 return;
3661
3662 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
3663 data->ft_ies.ies_len,
3664 data->ft_ies.ft_action,
3665 data->ft_ies.target_ap,
3666 data->ft_ies.ric_ies,
3667 data->ft_ies.ric_ies_len) < 0) {
3668 /* TODO: prevent MLME/driver from trying to associate? */
3669 }
3670 }
3671 #endif /* CONFIG_IEEE80211R */
3672
3673
3674 #ifdef CONFIG_IBSS_RSN
3675 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
3676 union wpa_event_data *data)
3677 {
3678 struct wpa_ssid *ssid;
3679 if (wpa_s->wpa_state < WPA_ASSOCIATED)
3680 return;
3681 if (data == NULL)
3682 return;
3683 ssid = wpa_s->current_ssid;
3684 if (ssid == NULL)
3685 return;
3686 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
3687 return;
3688
3689 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
3690 }
3691
3692
3693 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
3694 union wpa_event_data *data)
3695 {
3696 struct wpa_ssid *ssid = wpa_s->current_ssid;
3697
3698 if (ssid == NULL)
3699 return;
3700
3701 /* check if the ssid is correctly configured as IBSS/RSN */
3702 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
3703 return;
3704
3705 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
3706 data->rx_mgmt.frame_len);
3707 }
3708 #endif /* CONFIG_IBSS_RSN */
3709
3710
3711 #ifdef CONFIG_IEEE80211R
3712 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
3713 size_t len)
3714 {
3715 const u8 *sta_addr, *target_ap_addr;
3716 u16 status;
3717
3718 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
3719 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
3720 return; /* only SME case supported for now */
3721 if (len < 1 + 2 * ETH_ALEN + 2)
3722 return;
3723 if (data[0] != 2)
3724 return; /* Only FT Action Response is supported for now */
3725 sta_addr = data + 1;
3726 target_ap_addr = data + 1 + ETH_ALEN;
3727 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
3728 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
3729 MACSTR " TargetAP " MACSTR " status %u",
3730 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
3731
3732 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
3733 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
3734 " in FT Action Response", MAC2STR(sta_addr));
3735 return;
3736 }
3737
3738 if (status) {
3739 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
3740 "failure (status code %d)", status);
3741 /* TODO: report error to FT code(?) */
3742 return;
3743 }
3744
3745 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
3746 len - (1 + 2 * ETH_ALEN + 2), 1,
3747 target_ap_addr, NULL, 0) < 0)
3748 return;
3749
3750 #ifdef CONFIG_SME
3751 {
3752 struct wpa_bss *bss;
3753 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
3754 if (bss)
3755 wpa_s->sme.freq = bss->freq;
3756 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
3757 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
3758 WLAN_AUTH_FT);
3759 }
3760 #endif /* CONFIG_SME */
3761 }
3762 #endif /* CONFIG_IEEE80211R */
3763
3764
3765 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
3766 struct unprot_deauth *e)
3767 {
3768 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
3769 "dropped: " MACSTR " -> " MACSTR
3770 " (reason code %u)",
3771 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
3772 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
3773 }
3774
3775
3776 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
3777 struct unprot_disassoc *e)
3778 {
3779 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
3780 "dropped: " MACSTR " -> " MACSTR
3781 " (reason code %u)",
3782 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
3783 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
3784 }
3785
3786
3787 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
3788 u16 reason_code, int locally_generated,
3789 const u8 *ie, size_t ie_len, int deauth)
3790 {
3791 #ifdef CONFIG_AP
3792 if (wpa_s->ap_iface && addr) {
3793 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
3794 return;
3795 }
3796
3797 if (wpa_s->ap_iface) {
3798 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
3799 return;
3800 }
3801 #endif /* CONFIG_AP */
3802
3803 if (!locally_generated)
3804 wpa_s->own_disconnect_req = 0;
3805
3806 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
3807
3808 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
3809 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3810 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
3811 eapol_sm_failed(wpa_s->eapol))) &&
3812 !wpa_s->eap_expected_failure))
3813 wpas_auth_failed(wpa_s, "AUTH_FAILED");
3814
3815 #ifdef CONFIG_P2P
3816 if (deauth && reason_code > 0) {
3817 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
3818 locally_generated) > 0) {
3819 /*
3820 * The interface was removed, so cannot continue
3821 * processing any additional operations after this.
3822 */
3823 return;
3824 }
3825 }
3826 #endif /* CONFIG_P2P */
3827
3828 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
3829 locally_generated);
3830 }
3831
3832
3833 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
3834 struct disassoc_info *info)
3835 {
3836 u16 reason_code = 0;
3837 int locally_generated = 0;
3838 const u8 *addr = NULL;
3839 const u8 *ie = NULL;
3840 size_t ie_len = 0;
3841
3842 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
3843
3844 if (info) {
3845 addr = info->addr;
3846 ie = info->ie;
3847 ie_len = info->ie_len;
3848 reason_code = info->reason_code;
3849 locally_generated = info->locally_generated;
3850 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s", reason_code,
3851 reason2str(reason_code),
3852 locally_generated ? " locally_generated=1" : "");
3853 if (addr)
3854 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3855 MAC2STR(addr));
3856 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
3857 ie, ie_len);
3858 }
3859
3860 #ifdef CONFIG_AP
3861 if (wpa_s->ap_iface && info && info->addr) {
3862 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
3863 return;
3864 }
3865
3866 if (wpa_s->ap_iface) {
3867 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
3868 return;
3869 }
3870 #endif /* CONFIG_AP */
3871
3872 #ifdef CONFIG_P2P
3873 if (info) {
3874 wpas_p2p_disassoc_notif(
3875 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
3876 locally_generated);
3877 }
3878 #endif /* CONFIG_P2P */
3879
3880 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3881 sme_event_disassoc(wpa_s, info);
3882
3883 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
3884 ie, ie_len, 0);
3885 }
3886
3887
3888 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
3889 struct deauth_info *info)
3890 {
3891 u16 reason_code = 0;
3892 int locally_generated = 0;
3893 const u8 *addr = NULL;
3894 const u8 *ie = NULL;
3895 size_t ie_len = 0;
3896
3897 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
3898
3899 if (info) {
3900 addr = info->addr;
3901 ie = info->ie;
3902 ie_len = info->ie_len;
3903 reason_code = info->reason_code;
3904 locally_generated = info->locally_generated;
3905 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s",
3906 reason_code, reason2str(reason_code),
3907 locally_generated ? " locally_generated=1" : "");
3908 if (addr) {
3909 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3910 MAC2STR(addr));
3911 }
3912 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
3913 ie, ie_len);
3914 }
3915
3916 wpa_reset_ft_completed(wpa_s->wpa);
3917
3918 wpas_event_disconnect(wpa_s, addr, reason_code,
3919 locally_generated, ie, ie_len, 1);
3920 }
3921
3922
3923 static const char * reg_init_str(enum reg_change_initiator init)
3924 {
3925 switch (init) {
3926 case REGDOM_SET_BY_CORE:
3927 return "CORE";
3928 case REGDOM_SET_BY_USER:
3929 return "USER";
3930 case REGDOM_SET_BY_DRIVER:
3931 return "DRIVER";
3932 case REGDOM_SET_BY_COUNTRY_IE:
3933 return "COUNTRY_IE";
3934 case REGDOM_BEACON_HINT:
3935 return "BEACON_HINT";
3936 }
3937 return "?";
3938 }
3939
3940
3941 static const char * reg_type_str(enum reg_type type)
3942 {
3943 switch (type) {
3944 case REGDOM_TYPE_UNKNOWN:
3945 return "UNKNOWN";
3946 case REGDOM_TYPE_COUNTRY:
3947 return "COUNTRY";
3948 case REGDOM_TYPE_WORLD:
3949 return "WORLD";
3950 case REGDOM_TYPE_CUSTOM_WORLD:
3951 return "CUSTOM_WORLD";
3952 case REGDOM_TYPE_INTERSECTION:
3953 return "INTERSECTION";
3954 }
3955 return "?";
3956 }
3957
3958
3959 void wpa_supplicant_update_channel_list(struct wpa_supplicant *wpa_s,
3960 struct channel_list_changed *info)
3961 {
3962 struct wpa_supplicant *ifs;
3963 u8 dfs_domain;
3964
3965 /*
3966 * To allow backwards compatibility with higher level layers that
3967 * assumed the REGDOM_CHANGE event is sent over the initially added
3968 * interface. Find the highest parent of this interface and use it to
3969 * send the event.
3970 */
3971 for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
3972 ;
3973
3974 if (info) {
3975 wpa_msg(ifs, MSG_INFO,
3976 WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
3977 reg_init_str(info->initiator), reg_type_str(info->type),
3978 info->alpha2[0] ? " alpha2=" : "",
3979 info->alpha2[0] ? info->alpha2 : "");
3980 }
3981
3982 if (wpa_s->drv_priv == NULL)
3983 return; /* Ignore event during drv initialization */
3984
3985 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
3986 radio_list) {
3987 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
3988 ifs->ifname);
3989 free_hw_features(ifs);
3990 ifs->hw.modes = wpa_drv_get_hw_feature_data(
3991 ifs, &ifs->hw.num_modes, &ifs->hw.flags, &dfs_domain);
3992
3993 /* Restart PNO/sched_scan with updated channel list */
3994 if (ifs->pno) {
3995 wpas_stop_pno(ifs);
3996 wpas_start_pno(ifs);
3997 } else if (ifs->sched_scanning && !ifs->pno_sched_pending) {
3998 wpa_dbg(ifs, MSG_DEBUG,
3999 "Channel list changed - restart sched_scan");
4000 wpas_scan_restart_sched_scan(ifs);
4001 }
4002 }
4003
4004 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
4005 }
4006
4007
4008 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
4009 const u8 *frame, size_t len, int freq,
4010 int rssi)
4011 {
4012 const struct ieee80211_mgmt *mgmt;
4013 const u8 *payload;
4014 size_t plen;
4015 u8 category;
4016
4017 if (len < IEEE80211_HDRLEN + 2)
4018 return;
4019
4020 mgmt = (const struct ieee80211_mgmt *) frame;
4021 payload = frame + IEEE80211_HDRLEN;
4022 category = *payload++;
4023 plen = len - IEEE80211_HDRLEN - 1;
4024
4025 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
4026 " Category=%u DataLen=%d freq=%d MHz",
4027 MAC2STR(mgmt->sa), category, (int) plen, freq);
4028
4029 if (category == WLAN_ACTION_WMM) {
4030 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
4031 return;
4032 }
4033
4034 #ifdef CONFIG_IEEE80211R
4035 if (category == WLAN_ACTION_FT) {
4036 ft_rx_action(wpa_s, payload, plen);
4037 return;
4038 }
4039 #endif /* CONFIG_IEEE80211R */
4040
4041 #ifdef CONFIG_SME
4042 if (category == WLAN_ACTION_SA_QUERY) {
4043 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
4044 return;
4045 }
4046 #endif /* CONFIG_SME */
4047
4048 #ifdef CONFIG_WNM
4049 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
4050 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
4051 return;
4052 }
4053 #endif /* CONFIG_WNM */
4054
4055 #ifdef CONFIG_GAS
4056 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
4057 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
4058 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
4059 mgmt->u.action.category,
4060 payload, plen, freq) == 0)
4061 return;
4062 #endif /* CONFIG_GAS */
4063
4064 #ifdef CONFIG_GAS_SERVER
4065 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
4066 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
4067 gas_server_rx(wpa_s->gas_server, mgmt->da, mgmt->sa, mgmt->bssid,
4068 mgmt->u.action.category,
4069 payload, plen, freq) == 0)
4070 return;
4071 #endif /* CONFIG_GAS_SERVER */
4072
4073 #ifdef CONFIG_TDLS
4074 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
4075 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
4076 wpa_dbg(wpa_s, MSG_DEBUG,
4077 "TDLS: Received Discovery Response from " MACSTR,
4078 MAC2STR(mgmt->sa));
4079 return;
4080 }
4081 #endif /* CONFIG_TDLS */
4082
4083 #ifdef CONFIG_INTERWORKING
4084 if (category == WLAN_ACTION_QOS && plen >= 1 &&
4085 payload[0] == QOS_QOS_MAP_CONFIG) {
4086 const u8 *pos = payload + 1;
4087 size_t qlen = plen - 1;
4088 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
4089 MACSTR, MAC2STR(mgmt->sa));
4090 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
4091 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
4092 pos[1] <= qlen - 2 && pos[1] >= 16)
4093 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
4094 return;
4095 }
4096 #endif /* CONFIG_INTERWORKING */
4097
4098 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4099 payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
4100 wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
4101 mgmt->da,
4102 payload + 1,
4103 plen - 1);
4104 return;
4105 }
4106
4107 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4108 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
4109 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
4110 return;
4111 }
4112
4113 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4114 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
4115 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
4116 payload + 1, plen - 1,
4117 rssi);
4118 return;
4119 }
4120
4121 #ifdef CONFIG_FST
4122 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
4123 fst_rx_action(wpa_s->fst, mgmt, len);
4124 return;
4125 }
4126 #endif /* CONFIG_FST */
4127
4128 #ifdef CONFIG_DPP
4129 if (category == WLAN_ACTION_PUBLIC && plen >= 5 &&
4130 payload[0] == WLAN_PA_VENDOR_SPECIFIC &&
4131 WPA_GET_BE24(&payload[1]) == OUI_WFA &&
4132 payload[4] == DPP_OUI_TYPE) {
4133 payload++;
4134 plen--;
4135 wpas_dpp_rx_action(wpa_s, mgmt->sa, payload, plen, freq);
4136 return;
4137 }
4138 #endif /* CONFIG_DPP */
4139
4140 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
4141 category, payload, plen, freq);
4142 if (wpa_s->ifmsh)
4143 mesh_mpm_action_rx(wpa_s, mgmt, len);
4144 }
4145
4146
4147 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
4148 union wpa_event_data *event)
4149 {
4150 struct wpa_freq_range_list *list;
4151 char *str = NULL;
4152
4153 list = &event->freq_range;
4154
4155 if (list->num)
4156 str = freq_range_list_str(list);
4157 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
4158 str ? str : "");
4159
4160 #ifdef CONFIG_P2P
4161 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
4162 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
4163 __func__);
4164 } else {
4165 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
4166
4167 /*
4168 * The update channel flow will also take care of moving a GO
4169 * from the unsafe frequency if needed.
4170 */
4171 wpas_p2p_update_channel_list(wpa_s,
4172 WPAS_P2P_CHANNEL_UPDATE_AVOID);
4173 }
4174 #endif /* CONFIG_P2P */
4175
4176 os_free(str);
4177 }
4178
4179
4180 static void wpa_supplicant_event_port_authorized(struct wpa_supplicant *wpa_s)
4181 {
4182 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
4183 wpa_supplicant_cancel_auth_timeout(wpa_s);
4184 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
4185 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
4186 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
4187 wpa_s->drv_authorized_port = 1;
4188 }
4189 }
4190
4191
4192 static unsigned int wpas_event_cac_ms(const struct wpa_supplicant *wpa_s,
4193 int freq)
4194 {
4195 size_t i;
4196 int j;
4197
4198 for (i = 0; i < wpa_s->hw.num_modes; i++) {
4199 const struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i];
4200
4201 for (j = 0; j < mode->num_channels; j++) {
4202 const struct hostapd_channel_data *chan;
4203
4204 chan = &mode->channels[j];
4205 if (chan->freq == freq)
4206 return chan->dfs_cac_ms;
4207 }
4208 }
4209
4210 return 0;
4211 }
4212
4213
4214 static void wpas_event_dfs_cac_started(struct wpa_supplicant *wpa_s,
4215 struct dfs_event *radar)
4216 {
4217 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4218 if (wpa_s->ap_iface || wpa_s->ifmsh) {
4219 wpas_ap_event_dfs_cac_started(wpa_s, radar);
4220 } else
4221 #endif /* NEED_AP_MLME && CONFIG_AP */
4222 {
4223 unsigned int cac_time = wpas_event_cac_ms(wpa_s, radar->freq);
4224
4225 cac_time /= 1000; /* convert from ms to sec */
4226 if (!cac_time)
4227 cac_time = 10 * 60; /* max timeout: 10 minutes */
4228
4229 /* Restart auth timeout: CAC time added to initial timeout */
4230 wpas_auth_timeout_restart(wpa_s, cac_time);
4231 }
4232 }
4233
4234
4235 static void wpas_event_dfs_cac_finished(struct wpa_supplicant *wpa_s,
4236 struct dfs_event *radar)
4237 {
4238 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4239 if (wpa_s->ap_iface || wpa_s->ifmsh) {
4240 wpas_ap_event_dfs_cac_finished(wpa_s, radar);
4241 } else
4242 #endif /* NEED_AP_MLME && CONFIG_AP */
4243 {
4244 /* Restart auth timeout with original value after CAC is
4245 * finished */
4246 wpas_auth_timeout_restart(wpa_s, 0);
4247 }
4248 }
4249
4250
4251 static void wpas_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s,
4252 struct dfs_event *radar)
4253 {
4254 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4255 if (wpa_s->ap_iface || wpa_s->ifmsh) {
4256 wpas_ap_event_dfs_cac_aborted(wpa_s, radar);
4257 } else
4258 #endif /* NEED_AP_MLME && CONFIG_AP */
4259 {
4260 /* Restart auth timeout with original value after CAC is
4261 * aborted */
4262 wpas_auth_timeout_restart(wpa_s, 0);
4263 }
4264 }
4265
4266
4267 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
4268 union wpa_event_data *data)
4269 {
4270 wpa_dbg(wpa_s, MSG_DEBUG,
4271 "Connection authorized by device, previous state %d",
4272 wpa_s->wpa_state);
4273
4274 wpa_supplicant_event_port_authorized(wpa_s);
4275
4276 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
4277 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
4278 data->assoc_info.ptk_kck_len,
4279 data->assoc_info.ptk_kek,
4280 data->assoc_info.ptk_kek_len);
4281 #ifdef CONFIG_FILS
4282 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
4283 struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
4284 const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
4285
4286 /* Update ERP next sequence number */
4287 eapol_sm_update_erp_next_seq_num(
4288 wpa_s->eapol, data->assoc_info.fils_erp_next_seq_num);
4289
4290 if (data->assoc_info.fils_pmk && data->assoc_info.fils_pmkid) {
4291 /* Add the new PMK and PMKID to the PMKSA cache */
4292 wpa_sm_pmksa_cache_add(wpa_s->wpa,
4293 data->assoc_info.fils_pmk,
4294 data->assoc_info.fils_pmk_len,
4295 data->assoc_info.fils_pmkid,
4296 wpa_s->bssid, fils_cache_id);
4297 } else if (data->assoc_info.fils_pmkid) {
4298 /* Update the current PMKSA used for this connection */
4299 pmksa_cache_set_current(wpa_s->wpa,
4300 data->assoc_info.fils_pmkid,
4301 NULL, NULL, 0, NULL, 0);
4302 }
4303 }
4304 #endif /* CONFIG_FILS */
4305 }
4306
4307
4308 static void wpas_event_assoc_reject(struct wpa_supplicant *wpa_s,
4309 union wpa_event_data *data)
4310 {
4311 const u8 *bssid = data->assoc_reject.bssid;
4312 #ifdef CONFIG_MBO
4313 struct wpa_bss *reject_bss;
4314 #endif /* CONFIG_MBO */
4315
4316 if (!bssid || is_zero_ether_addr(bssid))
4317 bssid = wpa_s->pending_bssid;
4318 #ifdef CONFIG_MBO
4319 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
4320 reject_bss = wpa_s->current_bss;
4321 else
4322 reject_bss = wpa_bss_get_bssid(wpa_s, bssid);
4323 #endif /* CONFIG_MBO */
4324
4325 if (data->assoc_reject.bssid)
4326 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
4327 "bssid=" MACSTR " status_code=%u%s%s%s",
4328 MAC2STR(data->assoc_reject.bssid),
4329 data->assoc_reject.status_code,
4330 data->assoc_reject.timed_out ? " timeout" : "",
4331 data->assoc_reject.timeout_reason ? "=" : "",
4332 data->assoc_reject.timeout_reason ?
4333 data->assoc_reject.timeout_reason : "");
4334 else
4335 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
4336 "status_code=%u%s%s%s",
4337 data->assoc_reject.status_code,
4338 data->assoc_reject.timed_out ? " timeout" : "",
4339 data->assoc_reject.timeout_reason ? "=" : "",
4340 data->assoc_reject.timeout_reason ?
4341 data->assoc_reject.timeout_reason : "");
4342 wpa_s->assoc_status_code = data->assoc_reject.status_code;
4343 wpas_notify_assoc_status_code(wpa_s);
4344
4345 #ifdef CONFIG_OWE
4346 if (data->assoc_reject.status_code ==
4347 WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED &&
4348 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
4349 wpa_s->current_ssid &&
4350 wpa_s->current_ssid->owe_group == 0 &&
4351 wpa_s->last_owe_group != 21) {
4352 struct wpa_ssid *ssid = wpa_s->current_ssid;
4353 struct wpa_bss *bss = wpa_s->current_bss;
4354
4355 if (!bss) {
4356 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
4357 if (!bss) {
4358 wpas_connection_failed(wpa_s, bssid);
4359 wpa_supplicant_mark_disassoc(wpa_s);
4360 return;
4361 }
4362 }
4363 wpa_printf(MSG_DEBUG, "OWE: Try next supported DH group");
4364 wpas_connect_work_done(wpa_s);
4365 wpa_supplicant_mark_disassoc(wpa_s);
4366 wpa_supplicant_connect(wpa_s, bss, ssid);
4367 return;
4368 }
4369 #endif /* CONFIG_OWE */
4370
4371 #ifdef CONFIG_DPP2
4372 /* Try to follow AP's PFS policy. WLAN_STATUS_ASSOC_DENIED_UNSPEC is
4373 * the status code defined in the DPP R2 tech spec.
4374 * WLAN_STATUS_AKMP_NOT_VALID is addressed in the same manner as an
4375 * interoperability workaround with older hostapd implementation. */
4376 if (wpa_s->current_ssid &&
4377 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP &&
4378 wpa_s->current_ssid->dpp_pfs == 0 &&
4379 (data->assoc_reject.status_code ==
4380 WLAN_STATUS_ASSOC_DENIED_UNSPEC ||
4381 data->assoc_reject.status_code == WLAN_STATUS_AKMP_NOT_VALID)) {
4382 struct wpa_ssid *ssid = wpa_s->current_ssid;
4383 struct wpa_bss *bss = wpa_s->current_bss;
4384
4385 wpa_s->current_ssid->dpp_pfs_fallback ^= 1;
4386 if (!bss)
4387 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
4388 if (!bss || wpa_s->dpp_pfs_fallback) {
4389 wpa_printf(MSG_DEBUG,
4390 "DPP: Updated PFS policy for next try");
4391 wpas_connection_failed(wpa_s, bssid);
4392 wpa_supplicant_mark_disassoc(wpa_s);
4393 return;
4394 }
4395 wpa_printf(MSG_DEBUG, "DPP: Try again with updated PFS policy");
4396 wpa_s->dpp_pfs_fallback = 1;
4397 wpas_connect_work_done(wpa_s);
4398 wpa_supplicant_mark_disassoc(wpa_s);
4399 wpa_supplicant_connect(wpa_s, bss, ssid);
4400 return;
4401 }
4402 #endif /* CONFIG_DPP2 */
4403
4404 #ifdef CONFIG_MBO
4405 if (data->assoc_reject.status_code ==
4406 WLAN_STATUS_DENIED_POOR_CHANNEL_CONDITIONS &&
4407 reject_bss && data->assoc_reject.resp_ies) {
4408 const u8 *rssi_rej;
4409
4410 rssi_rej = mbo_get_attr_from_ies(
4411 data->assoc_reject.resp_ies,
4412 data->assoc_reject.resp_ies_len,
4413 OCE_ATTR_ID_RSSI_BASED_ASSOC_REJECT);
4414 if (rssi_rej && rssi_rej[1] == 2) {
4415 wpa_printf(MSG_DEBUG,
4416 "OCE: RSSI-based association rejection from "
4417 MACSTR " (Delta RSSI: %u, Retry Delay: %u)",
4418 MAC2STR(reject_bss->bssid),
4419 rssi_rej[2], rssi_rej[3]);
4420 wpa_bss_tmp_disallow(wpa_s,
4421 reject_bss->bssid,
4422 rssi_rej[3],
4423 rssi_rej[2] + reject_bss->level);
4424 }
4425 }
4426 #endif /* CONFIG_MBO */
4427
4428 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
4429 sme_event_assoc_reject(wpa_s, data);
4430 return;
4431 }
4432
4433 /* Driver-based SME cases */
4434
4435 #ifdef CONFIG_SAE
4436 if (wpa_s->current_ssid &&
4437 wpa_key_mgmt_sae(wpa_s->current_ssid->key_mgmt) &&
4438 !data->assoc_reject.timed_out) {
4439 wpa_dbg(wpa_s, MSG_DEBUG, "SAE: Drop PMKSA cache entry");
4440 wpa_sm_aborted_cached(wpa_s->wpa);
4441 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
4442 }
4443 #endif /* CONFIG_SAE */
4444
4445 #ifdef CONFIG_DPP
4446 if (wpa_s->current_ssid &&
4447 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP &&
4448 !data->assoc_reject.timed_out) {
4449 wpa_dbg(wpa_s, MSG_DEBUG, "DPP: Drop PMKSA cache entry");
4450 wpa_sm_aborted_cached(wpa_s->wpa);
4451 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
4452 }
4453 #endif /* CONFIG_DPP */
4454
4455 #ifdef CONFIG_FILS
4456 /* Update ERP next sequence number */
4457 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
4458 eapol_sm_update_erp_next_seq_num(
4459 wpa_s->eapol,
4460 data->assoc_reject.fils_erp_next_seq_num);
4461 fils_connection_failure(wpa_s);
4462 }
4463 #endif /* CONFIG_FILS */
4464
4465 wpas_connection_failed(wpa_s, bssid);
4466 wpa_supplicant_mark_disassoc(wpa_s);
4467 }
4468
4469
4470 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
4471 union wpa_event_data *data)
4472 {
4473 struct wpa_supplicant *wpa_s = ctx;
4474 int resched;
4475 struct os_reltime age, clear_at;
4476 #ifndef CONFIG_NO_STDOUT_DEBUG
4477 int level = MSG_DEBUG;
4478 #endif /* CONFIG_NO_STDOUT_DEBUG */
4479
4480 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
4481 event != EVENT_INTERFACE_ENABLED &&
4482 event != EVENT_INTERFACE_STATUS &&
4483 event != EVENT_SCAN_RESULTS &&
4484 event != EVENT_SCHED_SCAN_STOPPED) {
4485 wpa_dbg(wpa_s, MSG_DEBUG,
4486 "Ignore event %s (%d) while interface is disabled",
4487 event_to_string(event), event);
4488 return;
4489 }
4490
4491 #ifndef CONFIG_NO_STDOUT_DEBUG
4492 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
4493 const struct ieee80211_hdr *hdr;
4494 u16 fc;
4495 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
4496 fc = le_to_host16(hdr->frame_control);
4497 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
4498 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
4499 level = MSG_EXCESSIVE;
4500 }
4501
4502 wpa_dbg(wpa_s, level, "Event %s (%d) received",
4503 event_to_string(event), event);
4504 #endif /* CONFIG_NO_STDOUT_DEBUG */
4505
4506 switch (event) {
4507 case EVENT_AUTH:
4508 #ifdef CONFIG_FST
4509 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
4510 data->auth.ies_len))
4511 wpa_printf(MSG_DEBUG,
4512 "FST: MB IEs updated from auth IE");
4513 #endif /* CONFIG_FST */
4514 sme_event_auth(wpa_s, data);
4515 wpa_s->auth_status_code = data->auth.status_code;
4516 wpas_notify_auth_status_code(wpa_s);
4517 break;
4518 case EVENT_ASSOC:
4519 #ifdef CONFIG_TESTING_OPTIONS
4520 if (wpa_s->ignore_auth_resp) {
4521 wpa_printf(MSG_INFO,
4522 "EVENT_ASSOC - ignore_auth_resp active!");
4523 break;
4524 }
4525 if (wpa_s->testing_resend_assoc) {
4526 wpa_printf(MSG_INFO,
4527 "EVENT_DEAUTH - testing_resend_assoc");
4528 break;
4529 }
4530 #endif /* CONFIG_TESTING_OPTIONS */
4531 wpa_supplicant_event_assoc(wpa_s, data);
4532 wpa_s->assoc_status_code = WLAN_STATUS_SUCCESS;
4533 if (data &&
4534 (data->assoc_info.authorized ||
4535 (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
4536 wpa_fils_is_completed(wpa_s->wpa))))
4537 wpa_supplicant_event_assoc_auth(wpa_s, data);
4538 if (data) {
4539 wpa_msg(wpa_s, MSG_INFO,
4540 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
4541 data->assoc_info.subnet_status);
4542 }
4543 break;
4544 case EVENT_DISASSOC:
4545 wpas_event_disassoc(wpa_s,
4546 data ? &data->disassoc_info : NULL);
4547 break;
4548 case EVENT_DEAUTH:
4549 #ifdef CONFIG_TESTING_OPTIONS
4550 if (wpa_s->ignore_auth_resp) {
4551 wpa_printf(MSG_INFO,
4552 "EVENT_DEAUTH - ignore_auth_resp active!");
4553 break;
4554 }
4555 if (wpa_s->testing_resend_assoc) {
4556 wpa_printf(MSG_INFO,
4557 "EVENT_DEAUTH - testing_resend_assoc");
4558 break;
4559 }
4560 #endif /* CONFIG_TESTING_OPTIONS */
4561 wpas_event_deauth(wpa_s,
4562 data ? &data->deauth_info : NULL);
4563 break;
4564 case EVENT_MICHAEL_MIC_FAILURE:
4565 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
4566 break;
4567 #ifndef CONFIG_NO_SCAN_PROCESSING
4568 case EVENT_SCAN_STARTED:
4569 if (wpa_s->own_scan_requested ||
4570 (data && !data->scan_info.external_scan)) {
4571 struct os_reltime diff;
4572
4573 os_get_reltime(&wpa_s->scan_start_time);
4574 os_reltime_sub(&wpa_s->scan_start_time,
4575 &wpa_s->scan_trigger_time, &diff);
4576 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
4577 diff.sec, diff.usec);
4578 wpa_s->own_scan_requested = 0;
4579 wpa_s->own_scan_running = 1;
4580 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
4581 wpa_s->manual_scan_use_id) {
4582 wpa_msg_ctrl(wpa_s, MSG_INFO,
4583 WPA_EVENT_SCAN_STARTED "id=%u",
4584 wpa_s->manual_scan_id);
4585 } else {
4586 wpa_msg_ctrl(wpa_s, MSG_INFO,
4587 WPA_EVENT_SCAN_STARTED);
4588 }
4589 } else {
4590 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
4591 wpa_s->radio->external_scan_running = 1;
4592 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
4593 }
4594 break;
4595 case EVENT_SCAN_RESULTS:
4596 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
4597 wpa_s->scan_res_handler = NULL;
4598 wpa_s->own_scan_running = 0;
4599 wpa_s->radio->external_scan_running = 0;
4600 wpa_s->last_scan_req = NORMAL_SCAN_REQ;
4601 break;
4602 }
4603
4604 if (!(data && data->scan_info.external_scan) &&
4605 os_reltime_initialized(&wpa_s->scan_start_time)) {
4606 struct os_reltime now, diff;
4607 os_get_reltime(&now);
4608 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
4609 wpa_s->scan_start_time.sec = 0;
4610 wpa_s->scan_start_time.usec = 0;
4611 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
4612 diff.sec, diff.usec);
4613 }
4614 if (wpa_supplicant_event_scan_results(wpa_s, data))
4615 break; /* interface may have been removed */
4616 if (!(data && data->scan_info.external_scan))
4617 wpa_s->own_scan_running = 0;
4618 if (data && data->scan_info.nl_scan_event)
4619 wpa_s->radio->external_scan_running = 0;
4620 radio_work_check_next(wpa_s);
4621 break;
4622 #endif /* CONFIG_NO_SCAN_PROCESSING */
4623 case EVENT_ASSOCINFO:
4624 wpa_supplicant_event_associnfo(wpa_s, data);
4625 break;
4626 case EVENT_INTERFACE_STATUS:
4627 wpa_supplicant_event_interface_status(wpa_s, data);
4628 break;
4629 case EVENT_PMKID_CANDIDATE:
4630 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
4631 break;
4632 #ifdef CONFIG_TDLS
4633 case EVENT_TDLS:
4634 wpa_supplicant_event_tdls(wpa_s, data);
4635 break;
4636 #endif /* CONFIG_TDLS */
4637 #ifdef CONFIG_WNM
4638 case EVENT_WNM:
4639 wpa_supplicant_event_wnm(wpa_s, data);
4640 break;
4641 #endif /* CONFIG_WNM */
4642 #ifdef CONFIG_IEEE80211R
4643 case EVENT_FT_RESPONSE:
4644 wpa_supplicant_event_ft_response(wpa_s, data);
4645 break;
4646 #endif /* CONFIG_IEEE80211R */
4647 #ifdef CONFIG_IBSS_RSN
4648 case EVENT_IBSS_RSN_START:
4649 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
4650 break;
4651 #endif /* CONFIG_IBSS_RSN */
4652 case EVENT_ASSOC_REJECT:
4653 wpas_event_assoc_reject(wpa_s, data);
4654 break;
4655 case EVENT_AUTH_TIMED_OUT:
4656 /* It is possible to get this event from earlier connection */
4657 if (wpa_s->current_ssid &&
4658 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
4659 wpa_dbg(wpa_s, MSG_DEBUG,
4660 "Ignore AUTH_TIMED_OUT in mesh configuration");
4661 break;
4662 }
4663 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
4664 sme_event_auth_timed_out(wpa_s, data);
4665 break;
4666 case EVENT_ASSOC_TIMED_OUT:
4667 /* It is possible to get this event from earlier connection */
4668 if (wpa_s->current_ssid &&
4669 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
4670 wpa_dbg(wpa_s, MSG_DEBUG,
4671 "Ignore ASSOC_TIMED_OUT in mesh configuration");
4672 break;
4673 }
4674 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
4675 sme_event_assoc_timed_out(wpa_s, data);
4676 break;
4677 case EVENT_TX_STATUS:
4678 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
4679 " type=%d stype=%d",
4680 MAC2STR(data->tx_status.dst),
4681 data->tx_status.type, data->tx_status.stype);
4682 #ifdef CONFIG_AP
4683 if (wpa_s->ap_iface == NULL) {
4684 #ifdef CONFIG_OFFCHANNEL
4685 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
4686 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
4687 offchannel_send_action_tx_status(
4688 wpa_s, data->tx_status.dst,
4689 data->tx_status.data,
4690 data->tx_status.data_len,
4691 data->tx_status.ack ?
4692 OFFCHANNEL_SEND_ACTION_SUCCESS :
4693 OFFCHANNEL_SEND_ACTION_NO_ACK);
4694 #endif /* CONFIG_OFFCHANNEL */
4695 break;
4696 }
4697 #endif /* CONFIG_AP */
4698 #ifdef CONFIG_OFFCHANNEL
4699 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
4700 MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
4701 /*
4702 * Catch TX status events for Action frames we sent via group
4703 * interface in GO mode, or via standalone AP interface.
4704 * Note, wpa_s->p2pdev will be the same as wpa_s->parent,
4705 * except when the primary interface is used as a GO interface
4706 * (for drivers which do not have group interface concurrency)
4707 */
4708 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
4709 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
4710 os_memcmp(wpa_s->p2pdev->pending_action_dst,
4711 data->tx_status.dst, ETH_ALEN) == 0) {
4712 offchannel_send_action_tx_status(
4713 wpa_s->p2pdev, data->tx_status.dst,
4714 data->tx_status.data,
4715 data->tx_status.data_len,
4716 data->tx_status.ack ?
4717 OFFCHANNEL_SEND_ACTION_SUCCESS :
4718 OFFCHANNEL_SEND_ACTION_NO_ACK);
4719 break;
4720 }
4721 #endif /* CONFIG_OFFCHANNEL */
4722 #ifdef CONFIG_AP
4723 switch (data->tx_status.type) {
4724 case WLAN_FC_TYPE_MGMT:
4725 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
4726 data->tx_status.data_len,
4727 data->tx_status.stype,
4728 data->tx_status.ack);
4729 break;
4730 case WLAN_FC_TYPE_DATA:
4731 ap_tx_status(wpa_s, data->tx_status.dst,
4732 data->tx_status.data,
4733 data->tx_status.data_len,
4734 data->tx_status.ack);
4735 break;
4736 }
4737 #endif /* CONFIG_AP */
4738 break;
4739 #ifdef CONFIG_AP
4740 case EVENT_EAPOL_TX_STATUS:
4741 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
4742 data->eapol_tx_status.data,
4743 data->eapol_tx_status.data_len,
4744 data->eapol_tx_status.ack);
4745 break;
4746 case EVENT_DRIVER_CLIENT_POLL_OK:
4747 ap_client_poll_ok(wpa_s, data->client_poll.addr);
4748 break;
4749 case EVENT_RX_FROM_UNKNOWN:
4750 if (wpa_s->ap_iface == NULL)
4751 break;
4752 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
4753 data->rx_from_unknown.wds);
4754 break;
4755 #endif /* CONFIG_AP */
4756
4757 case EVENT_CH_SWITCH_STARTED:
4758 case EVENT_CH_SWITCH:
4759 if (!data || !wpa_s->current_ssid)
4760 break;
4761
4762 wpa_msg(wpa_s, MSG_INFO,
4763 "%sfreq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
4764 event == EVENT_CH_SWITCH ? WPA_EVENT_CHANNEL_SWITCH :
4765 WPA_EVENT_CHANNEL_SWITCH_STARTED,
4766 data->ch_switch.freq,
4767 data->ch_switch.ht_enabled,
4768 data->ch_switch.ch_offset,
4769 channel_width_to_string(data->ch_switch.ch_width),
4770 data->ch_switch.cf1,
4771 data->ch_switch.cf2);
4772 if (event == EVENT_CH_SWITCH_STARTED)
4773 break;
4774
4775 wpa_s->assoc_freq = data->ch_switch.freq;
4776 wpa_s->current_ssid->frequency = data->ch_switch.freq;
4777
4778 #ifdef CONFIG_SME
4779 switch (data->ch_switch.ch_offset) {
4780 case 1:
4781 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_ABOVE;
4782 break;
4783 case -1:
4784 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_BELOW;
4785 break;
4786 default:
4787 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_UNKNOWN;
4788 break;
4789 }
4790 #endif /* CONFIG_SME */
4791
4792 #ifdef CONFIG_AP
4793 if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
4794 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
4795 wpa_s->current_ssid->mode == WPAS_MODE_MESH ||
4796 wpa_s->current_ssid->mode ==
4797 WPAS_MODE_P2P_GROUP_FORMATION) {
4798 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
4799 data->ch_switch.ht_enabled,
4800 data->ch_switch.ch_offset,
4801 data->ch_switch.ch_width,
4802 data->ch_switch.cf1,
4803 data->ch_switch.cf2,
4804 1);
4805 }
4806 #endif /* CONFIG_AP */
4807
4808 sme_event_ch_switch(wpa_s);
4809 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
4810 wnm_clear_coloc_intf_reporting(wpa_s);
4811 break;
4812 #ifdef CONFIG_AP
4813 #ifdef NEED_AP_MLME
4814 case EVENT_DFS_RADAR_DETECTED:
4815 if (data)
4816 wpas_ap_event_dfs_radar_detected(wpa_s,
4817 &data->dfs_event);
4818 break;
4819 case EVENT_DFS_NOP_FINISHED:
4820 if (data)
4821 wpas_ap_event_dfs_cac_nop_finished(wpa_s,
4822 &data->dfs_event);
4823 break;
4824 #endif /* NEED_AP_MLME */
4825 #endif /* CONFIG_AP */
4826 case EVENT_DFS_CAC_STARTED:
4827 if (data)
4828 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
4829 break;
4830 case EVENT_DFS_CAC_FINISHED:
4831 if (data)
4832 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
4833 break;
4834 case EVENT_DFS_CAC_ABORTED:
4835 if (data)
4836 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
4837 break;
4838 case EVENT_RX_MGMT: {
4839 u16 fc, stype;
4840 const struct ieee80211_mgmt *mgmt;
4841
4842 #ifdef CONFIG_TESTING_OPTIONS
4843 if (wpa_s->ext_mgmt_frame_handling) {
4844 struct rx_mgmt *rx = &data->rx_mgmt;
4845 size_t hex_len = 2 * rx->frame_len + 1;
4846 char *hex = os_malloc(hex_len);
4847 if (hex) {
4848 wpa_snprintf_hex(hex, hex_len,
4849 rx->frame, rx->frame_len);
4850 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
4851 rx->freq, rx->datarate, rx->ssi_signal,
4852 hex);
4853 os_free(hex);
4854 }
4855 break;
4856 }
4857 #endif /* CONFIG_TESTING_OPTIONS */
4858
4859 mgmt = (const struct ieee80211_mgmt *)
4860 data->rx_mgmt.frame;
4861 fc = le_to_host16(mgmt->frame_control);
4862 stype = WLAN_FC_GET_STYPE(fc);
4863
4864 #ifdef CONFIG_AP
4865 if (wpa_s->ap_iface == NULL) {
4866 #endif /* CONFIG_AP */
4867 #ifdef CONFIG_P2P
4868 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
4869 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
4870 const u8 *src = mgmt->sa;
4871 const u8 *ie;
4872 size_t ie_len;
4873
4874 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
4875 ie_len = data->rx_mgmt.frame_len -
4876 IEEE80211_HDRLEN;
4877 wpas_p2p_probe_req_rx(
4878 wpa_s, src, mgmt->da,
4879 mgmt->bssid, ie, ie_len,
4880 data->rx_mgmt.freq,
4881 data->rx_mgmt.ssi_signal);
4882 break;
4883 }
4884 #endif /* CONFIG_P2P */
4885 #ifdef CONFIG_IBSS_RSN
4886 if (wpa_s->current_ssid &&
4887 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
4888 stype == WLAN_FC_STYPE_AUTH &&
4889 data->rx_mgmt.frame_len >= 30) {
4890 wpa_supplicant_event_ibss_auth(wpa_s, data);
4891 break;
4892 }
4893 #endif /* CONFIG_IBSS_RSN */
4894
4895 if (stype == WLAN_FC_STYPE_ACTION) {
4896 wpas_event_rx_mgmt_action(
4897 wpa_s, data->rx_mgmt.frame,
4898 data->rx_mgmt.frame_len,
4899 data->rx_mgmt.freq,
4900 data->rx_mgmt.ssi_signal);
4901 break;
4902 }
4903
4904 if (wpa_s->ifmsh) {
4905 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
4906 break;
4907 }
4908
4909 #ifdef CONFIG_SAE
4910 if (stype == WLAN_FC_STYPE_AUTH &&
4911 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
4912 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE)) {
4913 sme_external_auth_mgmt_rx(
4914 wpa_s, data->rx_mgmt.frame,
4915 data->rx_mgmt.frame_len);
4916 break;
4917 }
4918 #endif /* CONFIG_SAE */
4919 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
4920 "management frame in non-AP mode");
4921 break;
4922 #ifdef CONFIG_AP
4923 }
4924
4925 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
4926 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
4927 const u8 *ie;
4928 size_t ie_len;
4929
4930 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
4931 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
4932
4933 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
4934 mgmt->bssid, ie, ie_len,
4935 data->rx_mgmt.ssi_signal);
4936 }
4937
4938 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
4939 #endif /* CONFIG_AP */
4940 break;
4941 }
4942 case EVENT_RX_PROBE_REQ:
4943 if (data->rx_probe_req.sa == NULL ||
4944 data->rx_probe_req.ie == NULL)
4945 break;
4946 #ifdef CONFIG_AP
4947 if (wpa_s->ap_iface) {
4948 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
4949 data->rx_probe_req.sa,
4950 data->rx_probe_req.da,
4951 data->rx_probe_req.bssid,
4952 data->rx_probe_req.ie,
4953 data->rx_probe_req.ie_len,
4954 data->rx_probe_req.ssi_signal);
4955 break;
4956 }
4957 #endif /* CONFIG_AP */
4958 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
4959 data->rx_probe_req.da,
4960 data->rx_probe_req.bssid,
4961 data->rx_probe_req.ie,
4962 data->rx_probe_req.ie_len,
4963 0,
4964 data->rx_probe_req.ssi_signal);
4965 break;
4966 case EVENT_REMAIN_ON_CHANNEL:
4967 #ifdef CONFIG_OFFCHANNEL
4968 offchannel_remain_on_channel_cb(
4969 wpa_s, data->remain_on_channel.freq,
4970 data->remain_on_channel.duration);
4971 #endif /* CONFIG_OFFCHANNEL */
4972 wpas_p2p_remain_on_channel_cb(
4973 wpa_s, data->remain_on_channel.freq,
4974 data->remain_on_channel.duration);
4975 break;
4976 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
4977 #ifdef CONFIG_OFFCHANNEL
4978 offchannel_cancel_remain_on_channel_cb(
4979 wpa_s, data->remain_on_channel.freq);
4980 #endif /* CONFIG_OFFCHANNEL */
4981 wpas_p2p_cancel_remain_on_channel_cb(
4982 wpa_s, data->remain_on_channel.freq);
4983 #ifdef CONFIG_DPP
4984 wpas_dpp_cancel_remain_on_channel_cb(
4985 wpa_s, data->remain_on_channel.freq);
4986 #endif /* CONFIG_DPP */
4987 break;
4988 case EVENT_EAPOL_RX:
4989 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
4990 data->eapol_rx.data,
4991 data->eapol_rx.data_len);
4992 break;
4993 case EVENT_SIGNAL_CHANGE:
4994 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
4995 "above=%d signal=%d noise=%d txrate=%d",
4996 data->signal_change.above_threshold,
4997 data->signal_change.current_signal,
4998 data->signal_change.current_noise,
4999 data->signal_change.current_txrate);
5000 wpa_bss_update_level(wpa_s->current_bss,
5001 data->signal_change.current_signal);
5002 bgscan_notify_signal_change(
5003 wpa_s, data->signal_change.above_threshold,
5004 data->signal_change.current_signal,
5005 data->signal_change.current_noise,
5006 data->signal_change.current_txrate);
5007 break;
5008 case EVENT_INTERFACE_MAC_CHANGED:
5009 wpa_supplicant_update_mac_addr(wpa_s);
5010 break;
5011 case EVENT_INTERFACE_ENABLED:
5012 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
5013 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
5014 eloop_cancel_timeout(wpas_clear_disabled_interface,
5015 wpa_s, NULL);
5016 wpa_supplicant_update_mac_addr(wpa_s);
5017 wpa_supplicant_set_default_scan_ies(wpa_s);
5018 if (wpa_s->p2p_mgmt) {
5019 wpa_supplicant_set_state(wpa_s,
5020 WPA_DISCONNECTED);
5021 break;
5022 }
5023
5024 #ifdef CONFIG_AP
5025 if (!wpa_s->ap_iface) {
5026 wpa_supplicant_set_state(wpa_s,
5027 WPA_DISCONNECTED);
5028 wpa_s->scan_req = NORMAL_SCAN_REQ;
5029 wpa_supplicant_req_scan(wpa_s, 0, 0);
5030 } else
5031 wpa_supplicant_set_state(wpa_s,
5032 WPA_COMPLETED);
5033 #else /* CONFIG_AP */
5034 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
5035 wpa_supplicant_req_scan(wpa_s, 0, 0);
5036 #endif /* CONFIG_AP */
5037 }
5038 break;
5039 case EVENT_INTERFACE_DISABLED:
5040 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
5041 #ifdef CONFIG_P2P
5042 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
5043 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
5044 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
5045 /*
5046 * Mark interface disabled if this happens to end up not
5047 * being removed as a separate P2P group interface.
5048 */
5049 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
5050 /*
5051 * The interface was externally disabled. Remove
5052 * it assuming an external entity will start a
5053 * new session if needed.
5054 */
5055 if (wpa_s->current_ssid &&
5056 wpa_s->current_ssid->p2p_group)
5057 wpas_p2p_interface_unavailable(wpa_s);
5058 else
5059 wpas_p2p_disconnect(wpa_s);
5060 /*
5061 * wpa_s instance may have been freed, so must not use
5062 * it here anymore.
5063 */
5064 break;
5065 }
5066 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
5067 p2p_in_progress(wpa_s->global->p2p) > 1) {
5068 /* This radio work will be cancelled, so clear P2P
5069 * state as well.
5070 */
5071 p2p_stop_find(wpa_s->global->p2p);
5072 }
5073 #endif /* CONFIG_P2P */
5074
5075 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
5076 /*
5077 * Indicate disconnection to keep ctrl_iface events
5078 * consistent.
5079 */
5080 wpa_supplicant_event_disassoc(
5081 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
5082 }
5083 wpa_supplicant_mark_disassoc(wpa_s);
5084 os_reltime_age(&wpa_s->last_scan, &age);
5085 if (age.sec >= SCAN_RES_VALID_FOR_CONNECT) {
5086 clear_at.sec = SCAN_RES_VALID_FOR_CONNECT;
5087 clear_at.usec = 0;
5088 } else {
5089 struct os_reltime tmp;
5090
5091 tmp.sec = SCAN_RES_VALID_FOR_CONNECT;
5092 tmp.usec = 0;
5093 os_reltime_sub(&tmp, &age, &clear_at);
5094 }
5095 eloop_register_timeout(clear_at.sec, clear_at.usec,
5096 wpas_clear_disabled_interface,
5097 wpa_s, NULL);
5098 radio_remove_works(wpa_s, NULL, 0);
5099
5100 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
5101 break;
5102 case EVENT_CHANNEL_LIST_CHANGED:
5103 wpa_supplicant_update_channel_list(
5104 wpa_s, &data->channel_list_changed);
5105 break;
5106 case EVENT_INTERFACE_UNAVAILABLE:
5107 wpas_p2p_interface_unavailable(wpa_s);
5108 break;
5109 case EVENT_BEST_CHANNEL:
5110 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
5111 "(%d %d %d)",
5112 data->best_chan.freq_24, data->best_chan.freq_5,
5113 data->best_chan.freq_overall);
5114 wpa_s->best_24_freq = data->best_chan.freq_24;
5115 wpa_s->best_5_freq = data->best_chan.freq_5;
5116 wpa_s->best_overall_freq = data->best_chan.freq_overall;
5117 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
5118 data->best_chan.freq_5,
5119 data->best_chan.freq_overall);
5120 break;
5121 case EVENT_UNPROT_DEAUTH:
5122 wpa_supplicant_event_unprot_deauth(wpa_s,
5123 &data->unprot_deauth);
5124 break;
5125 case EVENT_UNPROT_DISASSOC:
5126 wpa_supplicant_event_unprot_disassoc(wpa_s,
5127 &data->unprot_disassoc);
5128 break;
5129 case EVENT_STATION_LOW_ACK:
5130 #ifdef CONFIG_AP
5131 if (wpa_s->ap_iface && data)
5132 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
5133 data->low_ack.addr);
5134 #endif /* CONFIG_AP */
5135 #ifdef CONFIG_TDLS
5136 if (data)
5137 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
5138 data->low_ack.addr);
5139 #endif /* CONFIG_TDLS */
5140 break;
5141 case EVENT_IBSS_PEER_LOST:
5142 #ifdef CONFIG_IBSS_RSN
5143 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
5144 #endif /* CONFIG_IBSS_RSN */
5145 break;
5146 case EVENT_DRIVER_GTK_REKEY:
5147 if (os_memcmp(data->driver_gtk_rekey.bssid,
5148 wpa_s->bssid, ETH_ALEN))
5149 break;
5150 if (!wpa_s->wpa)
5151 break;
5152 wpa_sm_update_replay_ctr(wpa_s->wpa,
5153 data->driver_gtk_rekey.replay_ctr);
5154 break;
5155 case EVENT_SCHED_SCAN_STOPPED:
5156 wpa_s->sched_scanning = 0;
5157 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
5158 wpa_supplicant_notify_scanning(wpa_s, 0);
5159
5160 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
5161 break;
5162
5163 /*
5164 * If the driver stopped scanning without being requested to,
5165 * request a new scan to continue scanning for networks.
5166 */
5167 if (!wpa_s->sched_scan_stop_req &&
5168 wpa_s->wpa_state == WPA_SCANNING) {
5169 wpa_dbg(wpa_s, MSG_DEBUG,
5170 "Restart scanning after unexpected sched_scan stop event");
5171 wpa_supplicant_req_scan(wpa_s, 1, 0);
5172 break;
5173 }
5174
5175 wpa_s->sched_scan_stop_req = 0;
5176
5177 /*
5178 * Start a new sched scan to continue searching for more SSIDs
5179 * either if timed out or PNO schedule scan is pending.
5180 */
5181 if (wpa_s->sched_scan_timed_out) {
5182 wpa_supplicant_req_sched_scan(wpa_s);
5183 } else if (wpa_s->pno_sched_pending) {
5184 wpa_s->pno_sched_pending = 0;
5185 wpas_start_pno(wpa_s);
5186 } else if (resched) {
5187 wpa_supplicant_req_scan(wpa_s, 0, 0);
5188 }
5189
5190 break;
5191 case EVENT_WPS_BUTTON_PUSHED:
5192 #ifdef CONFIG_WPS
5193 wpas_wps_start_pbc(wpa_s, NULL, 0, 0);
5194 #endif /* CONFIG_WPS */
5195 break;
5196 case EVENT_AVOID_FREQUENCIES:
5197 wpa_supplicant_notify_avoid_freq(wpa_s, data);
5198 break;
5199 case EVENT_CONNECT_FAILED_REASON:
5200 #ifdef CONFIG_AP
5201 if (!wpa_s->ap_iface || !data)
5202 break;
5203 hostapd_event_connect_failed_reason(
5204 wpa_s->ap_iface->bss[0],
5205 data->connect_failed_reason.addr,
5206 data->connect_failed_reason.code);
5207 #endif /* CONFIG_AP */
5208 break;
5209 case EVENT_NEW_PEER_CANDIDATE:
5210 #ifdef CONFIG_MESH
5211 if (!wpa_s->ifmsh || !data)
5212 break;
5213 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
5214 data->mesh_peer.ies,
5215 data->mesh_peer.ie_len);
5216 #endif /* CONFIG_MESH */
5217 break;
5218 case EVENT_SURVEY:
5219 #ifdef CONFIG_AP
5220 if (!wpa_s->ap_iface)
5221 break;
5222 hostapd_event_get_survey(wpa_s->ap_iface,
5223 &data->survey_results);
5224 #endif /* CONFIG_AP */
5225 break;
5226 case EVENT_ACS_CHANNEL_SELECTED:
5227 #ifdef CONFIG_AP
5228 #ifdef CONFIG_ACS
5229 if (!wpa_s->ap_iface)
5230 break;
5231 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
5232 &data->acs_selected_channels);
5233 #endif /* CONFIG_ACS */
5234 #endif /* CONFIG_AP */
5235 break;
5236 case EVENT_P2P_LO_STOP:
5237 #ifdef CONFIG_P2P
5238 wpa_s->p2p_lo_started = 0;
5239 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP
5240 P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d",
5241 data->p2p_lo_stop.reason_code);
5242 #endif /* CONFIG_P2P */
5243 break;
5244 case EVENT_BEACON_LOSS:
5245 if (!wpa_s->current_bss || !wpa_s->current_ssid)
5246 break;
5247 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_BEACON_LOSS);
5248 bgscan_notify_beacon_loss(wpa_s);
5249 break;
5250 case EVENT_EXTERNAL_AUTH:
5251 #ifdef CONFIG_SAE
5252 if (!wpa_s->current_ssid) {
5253 wpa_printf(MSG_DEBUG, "SAE: current_ssid is NULL");
5254 break;
5255 }
5256 sme_external_auth_trigger(wpa_s, data);
5257 #endif /* CONFIG_SAE */
5258 break;
5259 case EVENT_PORT_AUTHORIZED:
5260 wpa_supplicant_event_port_authorized(wpa_s);
5261 break;
5262 case EVENT_STATION_OPMODE_CHANGED:
5263 #ifdef CONFIG_AP
5264 if (!wpa_s->ap_iface || !data)
5265 break;
5266
5267 hostapd_event_sta_opmode_changed(wpa_s->ap_iface->bss[0],
5268 data->sta_opmode.addr,
5269 data->sta_opmode.smps_mode,
5270 data->sta_opmode.chan_width,
5271 data->sta_opmode.rx_nss);
5272 #endif /* CONFIG_AP */
5273 break;
5274 default:
5275 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
5276 break;
5277 }
5278 }
5279
5280
5281 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
5282 union wpa_event_data *data)
5283 {
5284 struct wpa_supplicant *wpa_s;
5285
5286 if (event != EVENT_INTERFACE_STATUS)
5287 return;
5288
5289 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
5290 if (wpa_s && wpa_s->driver->get_ifindex) {
5291 unsigned int ifindex;
5292
5293 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
5294 if (ifindex != data->interface_status.ifindex) {
5295 wpa_dbg(wpa_s, MSG_DEBUG,
5296 "interface status ifindex %d mismatch (%d)",
5297 ifindex, data->interface_status.ifindex);
5298 return;
5299 }
5300 }
5301 #ifdef CONFIG_MATCH_IFACE
5302 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
5303 struct wpa_interface *wpa_i;
5304
5305 wpa_i = wpa_supplicant_match_iface(
5306 ctx, data->interface_status.ifname);
5307 if (!wpa_i)
5308 return;
5309 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
5310 os_free(wpa_i);
5311 if (wpa_s)
5312 wpa_s->matched = 1;
5313 }
5314 #endif /* CONFIG_MATCH_IFACE */
5315
5316 if (wpa_s)
5317 wpa_supplicant_event(wpa_s, event, data);
5318 }
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