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 "common/ptksa_cache.h"
34 #include "crypto/random.h"
35 #include "bssid_ignore.h"
36 #include "wpas_glue.h"
37 #include "wps_supplicant.h"
38 #include "ibss_rsn.h"
39 #include "sme.h"
40 #include "gas_query.h"
41 #include "p2p_supplicant.h"
42 #include "bgscan.h"
43 #include "autoscan.h"
44 #include "ap.h"
45 #include "bss.h"
46 #include "scan.h"
47 #include "offchannel.h"
48 #include "interworking.h"
49 #include "mesh.h"
50 #include "mesh_mpm.h"
51 #include "wmm_ac.h"
52 #include "dpp_supplicant.h"
53 #include "rsn_supp/wpa_i.h"
54
55
56 #define MAX_OWE_TRANSITION_BSS_SELECT_COUNT 5
57
58
59 #ifndef CONFIG_NO_SCAN_PROCESSING
60 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
61 int new_scan, int own_request);
62 #endif /* CONFIG_NO_SCAN_PROCESSING */
63
64
wpas_temp_disabled(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)65 int wpas_temp_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
66 {
67 struct os_reltime now;
68
69 if (ssid == NULL || ssid->disabled_until.sec == 0)
70 return 0;
71
72 os_get_reltime(&now);
73 if (ssid->disabled_until.sec > now.sec)
74 return ssid->disabled_until.sec - now.sec;
75
76 wpas_clear_temp_disabled(wpa_s, ssid, 0);
77
78 return 0;
79 }
80
81
82 #ifndef CONFIG_NO_SCAN_PROCESSING
83 /**
84 * wpas_reenabled_network_time - Time until first network is re-enabled
85 * @wpa_s: Pointer to wpa_supplicant data
86 * Returns: If all enabled networks are temporarily disabled, returns the time
87 * (in sec) until the first network is re-enabled. Otherwise returns 0.
88 *
89 * This function is used in case all enabled networks are temporarily disabled,
90 * in which case it returns the time (in sec) that the first network will be
91 * re-enabled. The function assumes that at least one network is enabled.
92 */
wpas_reenabled_network_time(struct wpa_supplicant * wpa_s)93 static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
94 {
95 struct wpa_ssid *ssid;
96 int disabled_for, res = 0;
97
98 #ifdef CONFIG_INTERWORKING
99 if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
100 wpa_s->conf->cred)
101 return 0;
102 #endif /* CONFIG_INTERWORKING */
103
104 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
105 if (ssid->disabled)
106 continue;
107
108 disabled_for = wpas_temp_disabled(wpa_s, ssid);
109 if (!disabled_for)
110 return 0;
111
112 if (!res || disabled_for < res)
113 res = disabled_for;
114 }
115
116 return res;
117 }
118 #endif /* CONFIG_NO_SCAN_PROCESSING */
119
120
wpas_network_reenabled(void * eloop_ctx,void * timeout_ctx)121 void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
122 {
123 struct wpa_supplicant *wpa_s = eloop_ctx;
124
125 if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
126 return;
127
128 wpa_dbg(wpa_s, MSG_DEBUG,
129 "Try to associate due to network getting re-enabled");
130 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
131 wpa_supplicant_cancel_sched_scan(wpa_s);
132 wpa_supplicant_req_scan(wpa_s, 0, 0);
133 }
134 }
135
136
wpa_supplicant_get_new_bss(struct wpa_supplicant * wpa_s,const u8 * bssid)137 static struct wpa_bss * wpa_supplicant_get_new_bss(
138 struct wpa_supplicant *wpa_s, const u8 *bssid)
139 {
140 struct wpa_bss *bss = NULL;
141 struct wpa_ssid *ssid = wpa_s->current_ssid;
142
143 if (ssid->ssid_len > 0)
144 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
145 if (!bss)
146 bss = wpa_bss_get_bssid(wpa_s, bssid);
147
148 return bss;
149 }
150
151
wpa_supplicant_update_current_bss(struct wpa_supplicant * wpa_s)152 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
153 {
154 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
155
156 if (!bss) {
157 wpa_supplicant_update_scan_results(wpa_s);
158
159 /* Get the BSS from the new scan results */
160 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
161 }
162
163 if (bss)
164 wpa_s->current_bss = bss;
165 }
166
167
wpa_supplicant_select_config(struct wpa_supplicant * wpa_s)168 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
169 {
170 struct wpa_ssid *ssid, *old_ssid;
171 u8 drv_ssid[SSID_MAX_LEN];
172 size_t drv_ssid_len;
173 int res;
174
175 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
176 wpa_supplicant_update_current_bss(wpa_s);
177
178 if (wpa_s->current_ssid->ssid_len == 0)
179 return 0; /* current profile still in use */
180 res = wpa_drv_get_ssid(wpa_s, drv_ssid);
181 if (res < 0) {
182 wpa_msg(wpa_s, MSG_INFO,
183 "Failed to read SSID from driver");
184 return 0; /* try to use current profile */
185 }
186 drv_ssid_len = res;
187
188 if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
189 os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
190 drv_ssid_len) == 0)
191 return 0; /* current profile still in use */
192
193 #ifdef CONFIG_OWE
194 if ((wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
195 wpa_s->current_bss &&
196 (wpa_s->current_bss->flags & WPA_BSS_OWE_TRANSITION) &&
197 drv_ssid_len == wpa_s->current_bss->ssid_len &&
198 os_memcmp(drv_ssid, wpa_s->current_bss->ssid,
199 drv_ssid_len) == 0)
200 return 0; /* current profile still in use */
201 #endif /* CONFIG_OWE */
202
203 wpa_msg(wpa_s, MSG_DEBUG,
204 "Driver-initiated BSS selection changed the SSID to %s",
205 wpa_ssid_txt(drv_ssid, drv_ssid_len));
206 /* continue selecting a new network profile */
207 }
208
209 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
210 "information");
211 ssid = wpa_supplicant_get_ssid(wpa_s);
212 if (ssid == NULL) {
213 wpa_msg(wpa_s, MSG_INFO,
214 "No network configuration found for the current AP");
215 return -1;
216 }
217
218 if (wpas_network_disabled(wpa_s, ssid)) {
219 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
220 return -1;
221 }
222
223 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
224 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
225 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
226 return -1;
227 }
228
229 res = wpas_temp_disabled(wpa_s, ssid);
230 if (res > 0) {
231 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
232 "disabled for %d second(s)", res);
233 return -1;
234 }
235
236 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
237 "current AP");
238 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
239 u8 wpa_ie[80];
240 size_t wpa_ie_len = sizeof(wpa_ie);
241 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
242 wpa_ie, &wpa_ie_len) < 0)
243 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
244 } else {
245 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
246 }
247
248 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
249 eapol_sm_invalidate_cached_session(wpa_s->eapol);
250 old_ssid = wpa_s->current_ssid;
251 wpa_s->current_ssid = ssid;
252
253 wpa_supplicant_update_current_bss(wpa_s);
254
255 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
256 wpa_supplicant_initiate_eapol(wpa_s);
257 if (old_ssid != wpa_s->current_ssid)
258 wpas_notify_network_changed(wpa_s);
259
260 return 0;
261 }
262
263
wpa_supplicant_stop_countermeasures(void * eloop_ctx,void * sock_ctx)264 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
265 {
266 struct wpa_supplicant *wpa_s = eloop_ctx;
267
268 if (wpa_s->countermeasures) {
269 wpa_s->countermeasures = 0;
270 wpa_drv_set_countermeasures(wpa_s, 0);
271 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
272
273 /*
274 * It is possible that the device is sched scanning, which means
275 * that a connection attempt will be done only when we receive
276 * scan results. However, in this case, it would be preferable
277 * to scan and connect immediately, so cancel the sched_scan and
278 * issue a regular scan flow.
279 */
280 wpa_supplicant_cancel_sched_scan(wpa_s);
281 wpa_supplicant_req_scan(wpa_s, 0, 0);
282 }
283 }
284
285
wpa_supplicant_mark_disassoc(struct wpa_supplicant * wpa_s)286 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
287 {
288 int bssid_changed;
289
290 wnm_bss_keep_alive_deinit(wpa_s);
291
292 #ifdef CONFIG_IBSS_RSN
293 ibss_rsn_deinit(wpa_s->ibss_rsn);
294 wpa_s->ibss_rsn = NULL;
295 #endif /* CONFIG_IBSS_RSN */
296
297 #ifdef CONFIG_AP
298 wpa_supplicant_ap_deinit(wpa_s);
299 #endif /* CONFIG_AP */
300
301 #ifdef CONFIG_HS20
302 /* Clear possibly configured frame filters */
303 wpa_drv_configure_frame_filters(wpa_s, 0);
304 #endif /* CONFIG_HS20 */
305
306 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
307 return;
308
309 if (os_reltime_initialized(&wpa_s->session_start)) {
310 os_reltime_age(&wpa_s->session_start, &wpa_s->session_length);
311 wpa_s->session_start.sec = 0;
312 wpa_s->session_start.usec = 0;
313 wpas_notify_session_length(wpa_s);
314 }
315
316 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
317 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
318 os_memset(wpa_s->bssid, 0, ETH_ALEN);
319 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
320 sme_clear_on_disassoc(wpa_s);
321 wpa_s->current_bss = NULL;
322 wpa_s->assoc_freq = 0;
323
324 if (bssid_changed)
325 wpas_notify_bssid_changed(wpa_s);
326
327 eapol_sm_notify_portEnabled(wpa_s->eapol, false);
328 eapol_sm_notify_portValid(wpa_s->eapol, false);
329 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
330 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE ||
331 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP || wpa_s->drv_authorized_port)
332 eapol_sm_notify_eap_success(wpa_s->eapol, false);
333 wpa_s->drv_authorized_port = 0;
334 wpa_s->ap_ies_from_associnfo = 0;
335 wpa_s->current_ssid = NULL;
336 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
337 wpa_s->key_mgmt = 0;
338
339 wpas_rrm_reset(wpa_s);
340 wpa_s->wnmsleep_used = 0;
341 wnm_clear_coloc_intf_reporting(wpa_s);
342 wpa_s->disable_mbo_oce = 0;
343
344 #ifdef CONFIG_TESTING_OPTIONS
345 wpa_s->last_tk_alg = WPA_ALG_NONE;
346 os_memset(wpa_s->last_tk, 0, sizeof(wpa_s->last_tk));
347 #endif /* CONFIG_TESTING_OPTIONS */
348 wpa_s->ieee80211ac = 0;
349
350 if (wpa_s->enabled_4addr_mode && wpa_drv_set_4addr_mode(wpa_s, 0) == 0)
351 wpa_s->enabled_4addr_mode = 0;
352 }
353
354
wpa_find_assoc_pmkid(struct wpa_supplicant * wpa_s)355 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
356 {
357 struct wpa_ie_data ie;
358 int pmksa_set = -1;
359 size_t i;
360
361 /* Start with assumption of no PMKSA cache entry match */
362 pmksa_cache_clear_current(wpa_s->wpa);
363
364 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
365 ie.pmkid == NULL)
366 return;
367
368 for (i = 0; i < ie.num_pmkid; i++) {
369 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
370 ie.pmkid + i * PMKID_LEN,
371 NULL, NULL, 0, NULL, 0);
372 if (pmksa_set == 0) {
373 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
374 break;
375 }
376 }
377
378 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
379 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
380 }
381
382
wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant * wpa_s,union wpa_event_data * data)383 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
384 union wpa_event_data *data)
385 {
386 if (data == NULL) {
387 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
388 "event");
389 return;
390 }
391 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
392 " index=%d preauth=%d",
393 MAC2STR(data->pmkid_candidate.bssid),
394 data->pmkid_candidate.index,
395 data->pmkid_candidate.preauth);
396
397 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
398 data->pmkid_candidate.index,
399 data->pmkid_candidate.preauth);
400 }
401
402
wpa_supplicant_dynamic_keys(struct wpa_supplicant * wpa_s)403 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
404 {
405 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
406 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
407 return 0;
408
409 #ifdef IEEE8021X_EAPOL
410 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
411 wpa_s->current_ssid &&
412 !(wpa_s->current_ssid->eapol_flags &
413 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
414 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
415 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
416 * plaintext or static WEP keys). */
417 return 0;
418 }
419 #endif /* IEEE8021X_EAPOL */
420
421 return 1;
422 }
423
424
425 /**
426 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
427 * @wpa_s: pointer to wpa_supplicant data
428 * @ssid: Configuration data for the network
429 * Returns: 0 on success, -1 on failure
430 *
431 * This function is called when starting authentication with a network that is
432 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
433 */
wpa_supplicant_scard_init(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)434 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
435 struct wpa_ssid *ssid)
436 {
437 #ifdef IEEE8021X_EAPOL
438 #ifdef PCSC_FUNCS
439 int aka = 0, sim = 0;
440
441 if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
442 wpa_s->scard != NULL || wpa_s->conf->external_sim)
443 return 0;
444
445 if (ssid == NULL || ssid->eap.eap_methods == NULL) {
446 sim = 1;
447 aka = 1;
448 } else {
449 struct eap_method_type *eap = ssid->eap.eap_methods;
450 while (eap->vendor != EAP_VENDOR_IETF ||
451 eap->method != EAP_TYPE_NONE) {
452 if (eap->vendor == EAP_VENDOR_IETF) {
453 if (eap->method == EAP_TYPE_SIM)
454 sim = 1;
455 else if (eap->method == EAP_TYPE_AKA ||
456 eap->method == EAP_TYPE_AKA_PRIME)
457 aka = 1;
458 }
459 eap++;
460 }
461 }
462
463 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
464 sim = 0;
465 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
466 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
467 NULL)
468 aka = 0;
469
470 if (!sim && !aka) {
471 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
472 "use SIM, but neither EAP-SIM nor EAP-AKA are "
473 "enabled");
474 return 0;
475 }
476
477 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
478 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
479
480 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
481 if (wpa_s->scard == NULL) {
482 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
483 "(pcsc-lite)");
484 return -1;
485 }
486 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
487 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
488 #endif /* PCSC_FUNCS */
489 #endif /* IEEE8021X_EAPOL */
490
491 return 0;
492 }
493
494
495 #ifndef CONFIG_NO_SCAN_PROCESSING
496
497 #ifdef CONFIG_WEP
has_wep_key(struct wpa_ssid * ssid)498 static int has_wep_key(struct wpa_ssid *ssid)
499 {
500 int i;
501
502 for (i = 0; i < NUM_WEP_KEYS; i++) {
503 if (ssid->wep_key_len[i])
504 return 1;
505 }
506
507 return 0;
508 }
509 #endif /* CONFIG_WEP */
510
511
wpa_supplicant_match_privacy(struct wpa_bss * bss,struct wpa_ssid * ssid)512 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
513 struct wpa_ssid *ssid)
514 {
515 int privacy = 0;
516
517 if (ssid->mixed_cell)
518 return 1;
519
520 #ifdef CONFIG_WPS
521 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
522 return 1;
523 #endif /* CONFIG_WPS */
524
525 #ifdef CONFIG_OWE
526 if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only)
527 return 1;
528 #endif /* CONFIG_OWE */
529
530 #ifdef CONFIG_WEP
531 if (has_wep_key(ssid))
532 privacy = 1;
533 #endif /* CONFIG_WEP */
534
535 #ifdef IEEE8021X_EAPOL
536 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
537 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
538 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
539 privacy = 1;
540 #endif /* IEEE8021X_EAPOL */
541
542 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
543 privacy = 1;
544
545 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
546 privacy = 1;
547
548 if (bss->caps & IEEE80211_CAP_PRIVACY)
549 return privacy;
550 return !privacy;
551 }
552
553
wpa_supplicant_ssid_bss_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss,int debug_print)554 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
555 struct wpa_ssid *ssid,
556 struct wpa_bss *bss, int debug_print)
557 {
558 struct wpa_ie_data ie;
559 int proto_match = 0;
560 const u8 *rsn_ie, *wpa_ie;
561 int ret;
562 #ifdef CONFIG_WEP
563 int wep_ok;
564 #endif /* CONFIG_WEP */
565
566 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
567 if (ret >= 0)
568 return ret;
569
570 #ifdef CONFIG_WEP
571 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
572 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
573 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
574 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
575 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
576 #endif /* CONFIG_WEP */
577
578 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
579 while ((ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)) && rsn_ie) {
580 proto_match++;
581
582 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
583 if (debug_print)
584 wpa_dbg(wpa_s, MSG_DEBUG,
585 " skip RSN IE - parse failed");
586 break;
587 }
588 if (!ie.has_pairwise)
589 ie.pairwise_cipher = wpa_default_rsn_cipher(bss->freq);
590 if (!ie.has_group)
591 ie.group_cipher = wpa_default_rsn_cipher(bss->freq);
592
593 #ifdef CONFIG_WEP
594 if (wep_ok &&
595 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
596 {
597 if (debug_print)
598 wpa_dbg(wpa_s, MSG_DEBUG,
599 " selected based on TSN in RSN IE");
600 return 1;
601 }
602 #endif /* CONFIG_WEP */
603
604 if (!(ie.proto & ssid->proto) &&
605 !(ssid->proto & WPA_PROTO_OSEN)) {
606 if (debug_print)
607 wpa_dbg(wpa_s, MSG_DEBUG,
608 " skip RSN IE - proto mismatch");
609 break;
610 }
611
612 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
613 if (debug_print)
614 wpa_dbg(wpa_s, MSG_DEBUG,
615 " skip RSN IE - PTK cipher mismatch");
616 break;
617 }
618
619 if (!(ie.group_cipher & ssid->group_cipher)) {
620 if (debug_print)
621 wpa_dbg(wpa_s, MSG_DEBUG,
622 " skip RSN IE - GTK cipher mismatch");
623 break;
624 }
625
626 if (ssid->group_mgmt_cipher &&
627 !(ie.mgmt_group_cipher & ssid->group_mgmt_cipher)) {
628 if (debug_print)
629 wpa_dbg(wpa_s, MSG_DEBUG,
630 " skip RSN IE - group mgmt cipher mismatch");
631 break;
632 }
633
634 if (!(ie.key_mgmt & ssid->key_mgmt)) {
635 if (debug_print)
636 wpa_dbg(wpa_s, MSG_DEBUG,
637 " skip RSN IE - key mgmt mismatch");
638 break;
639 }
640
641 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
642 wpas_get_ssid_pmf(wpa_s, ssid) ==
643 MGMT_FRAME_PROTECTION_REQUIRED) {
644 if (debug_print)
645 wpa_dbg(wpa_s, MSG_DEBUG,
646 " skip RSN IE - no mgmt frame protection");
647 break;
648 }
649 if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
650 wpas_get_ssid_pmf(wpa_s, ssid) ==
651 NO_MGMT_FRAME_PROTECTION) {
652 if (debug_print)
653 wpa_dbg(wpa_s, MSG_DEBUG,
654 " skip RSN IE - no mgmt frame protection enabled but AP requires it");
655 break;
656 }
657
658 if (debug_print)
659 wpa_dbg(wpa_s, MSG_DEBUG,
660 " selected based on RSN IE");
661 return 1;
662 }
663
664 if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED &&
665 (!(ssid->key_mgmt & WPA_KEY_MGMT_OWE) || ssid->owe_only)) {
666 if (debug_print)
667 wpa_dbg(wpa_s, MSG_DEBUG,
668 " skip - MFP Required but network not MFP Capable");
669 return 0;
670 }
671
672 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
673 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
674 proto_match++;
675
676 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
677 if (debug_print)
678 wpa_dbg(wpa_s, MSG_DEBUG,
679 " skip WPA IE - parse failed");
680 break;
681 }
682
683 #ifdef CONFIG_WEP
684 if (wep_ok &&
685 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
686 {
687 if (debug_print)
688 wpa_dbg(wpa_s, MSG_DEBUG,
689 " selected based on TSN in WPA IE");
690 return 1;
691 }
692 #endif /* CONFIG_WEP */
693
694 if (!(ie.proto & ssid->proto)) {
695 if (debug_print)
696 wpa_dbg(wpa_s, MSG_DEBUG,
697 " skip WPA IE - proto mismatch");
698 break;
699 }
700
701 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
702 if (debug_print)
703 wpa_dbg(wpa_s, MSG_DEBUG,
704 " skip WPA IE - PTK cipher mismatch");
705 break;
706 }
707
708 if (!(ie.group_cipher & ssid->group_cipher)) {
709 if (debug_print)
710 wpa_dbg(wpa_s, MSG_DEBUG,
711 " skip WPA IE - GTK cipher mismatch");
712 break;
713 }
714
715 if (!(ie.key_mgmt & ssid->key_mgmt)) {
716 if (debug_print)
717 wpa_dbg(wpa_s, MSG_DEBUG,
718 " skip WPA IE - key mgmt mismatch");
719 break;
720 }
721
722 if (debug_print)
723 wpa_dbg(wpa_s, MSG_DEBUG,
724 " selected based on WPA IE");
725 return 1;
726 }
727
728 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
729 !rsn_ie) {
730 if (debug_print)
731 wpa_dbg(wpa_s, MSG_DEBUG,
732 " allow for non-WPA IEEE 802.1X");
733 return 1;
734 }
735
736 #ifdef CONFIG_OWE
737 if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only &&
738 !wpa_ie && !rsn_ie) {
739 if (wpa_s->owe_transition_select &&
740 wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE) &&
741 ssid->owe_transition_bss_select_count + 1 <=
742 MAX_OWE_TRANSITION_BSS_SELECT_COUNT) {
743 ssid->owe_transition_bss_select_count++;
744 if (debug_print)
745 wpa_dbg(wpa_s, MSG_DEBUG,
746 " skip OWE transition BSS (selection count %d does not exceed %d)",
747 ssid->owe_transition_bss_select_count,
748 MAX_OWE_TRANSITION_BSS_SELECT_COUNT);
749 wpa_s->owe_transition_search = 1;
750 return 0;
751 }
752 if (debug_print)
753 wpa_dbg(wpa_s, MSG_DEBUG,
754 " allow in OWE transition mode");
755 return 1;
756 }
757 #endif /* CONFIG_OWE */
758
759 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
760 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
761 if (debug_print)
762 wpa_dbg(wpa_s, MSG_DEBUG,
763 " skip - no WPA/RSN proto match");
764 return 0;
765 }
766
767 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
768 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
769 if (debug_print)
770 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
771 return 1;
772 }
773
774 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
775 if (debug_print)
776 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
777 return 1;
778 }
779
780 if (debug_print)
781 wpa_dbg(wpa_s, MSG_DEBUG,
782 " reject due to mismatch with WPA/WPA2");
783
784 return 0;
785 }
786
787
freq_allowed(int * freqs,int freq)788 static int freq_allowed(int *freqs, int freq)
789 {
790 int i;
791
792 if (freqs == NULL)
793 return 1;
794
795 for (i = 0; freqs[i]; i++)
796 if (freqs[i] == freq)
797 return 1;
798 return 0;
799 }
800
801
rate_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss,int debug_print)802 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
803 struct wpa_bss *bss, int debug_print)
804 {
805 const struct hostapd_hw_modes *mode = NULL, *modes;
806 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
807 const u8 *rate_ie;
808 int i, j, k;
809
810 if (bss->freq == 0)
811 return 1; /* Cannot do matching without knowing band */
812
813 modes = wpa_s->hw.modes;
814 if (modes == NULL) {
815 /*
816 * The driver does not provide any additional information
817 * about the utilized hardware, so allow the connection attempt
818 * to continue.
819 */
820 return 1;
821 }
822
823 for (i = 0; i < wpa_s->hw.num_modes; i++) {
824 for (j = 0; j < modes[i].num_channels; j++) {
825 int freq = modes[i].channels[j].freq;
826 if (freq == bss->freq) {
827 if (mode &&
828 mode->mode == HOSTAPD_MODE_IEEE80211G)
829 break; /* do not allow 802.11b replace
830 * 802.11g */
831 mode = &modes[i];
832 break;
833 }
834 }
835 }
836
837 if (mode == NULL)
838 return 0;
839
840 for (i = 0; i < (int) sizeof(scan_ie); i++) {
841 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
842 if (rate_ie == NULL)
843 continue;
844
845 for (j = 2; j < rate_ie[1] + 2; j++) {
846 int flagged = !!(rate_ie[j] & 0x80);
847 int r = (rate_ie[j] & 0x7f) * 5;
848
849 /*
850 * IEEE Std 802.11n-2009 7.3.2.2:
851 * The new BSS Membership selector value is encoded
852 * like a legacy basic rate, but it is not a rate and
853 * only indicates if the BSS members are required to
854 * support the mandatory features of Clause 20 [HT PHY]
855 * in order to join the BSS.
856 */
857 if (flagged && ((rate_ie[j] & 0x7f) ==
858 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
859 if (!ht_supported(mode)) {
860 if (debug_print)
861 wpa_dbg(wpa_s, MSG_DEBUG,
862 " hardware does not support HT PHY");
863 return 0;
864 }
865 continue;
866 }
867
868 /* There's also a VHT selector for 802.11ac */
869 if (flagged && ((rate_ie[j] & 0x7f) ==
870 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
871 if (!vht_supported(mode)) {
872 if (debug_print)
873 wpa_dbg(wpa_s, MSG_DEBUG,
874 " hardware does not support VHT PHY");
875 return 0;
876 }
877 continue;
878 }
879
880 #ifdef CONFIG_SAE
881 if (flagged && ((rate_ie[j] & 0x7f) ==
882 BSS_MEMBERSHIP_SELECTOR_SAE_H2E_ONLY)) {
883 if (wpa_s->conf->sae_pwe == 0 &&
884 !ssid->sae_password_id &&
885 wpa_key_mgmt_sae(ssid->key_mgmt)) {
886 if (debug_print)
887 wpa_dbg(wpa_s, MSG_DEBUG,
888 " SAE H2E disabled");
889 #ifdef CONFIG_TESTING_OPTIONS
890 if (wpa_s->ignore_sae_h2e_only) {
891 wpa_dbg(wpa_s, MSG_DEBUG,
892 "TESTING: Ignore SAE H2E requirement mismatch");
893 continue;
894 }
895 #endif /* CONFIG_TESTING_OPTIONS */
896 return 0;
897 }
898 continue;
899 }
900 #endif /* CONFIG_SAE */
901
902 if (!flagged)
903 continue;
904
905 /* check for legacy basic rates */
906 for (k = 0; k < mode->num_rates; k++) {
907 if (mode->rates[k] == r)
908 break;
909 }
910 if (k == mode->num_rates) {
911 /*
912 * IEEE Std 802.11-2007 7.3.2.2 demands that in
913 * order to join a BSS all required rates
914 * have to be supported by the hardware.
915 */
916 if (debug_print)
917 wpa_dbg(wpa_s, MSG_DEBUG,
918 " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
919 r / 10, r % 10,
920 bss->freq, mode->mode, mode->num_rates);
921 return 0;
922 }
923 }
924 }
925
926 return 1;
927 }
928
929
930 /*
931 * Test whether BSS is in an ESS.
932 * This is done differently in DMG (60 GHz) and non-DMG bands
933 */
bss_is_ess(struct wpa_bss * bss)934 static int bss_is_ess(struct wpa_bss *bss)
935 {
936 if (bss_is_dmg(bss)) {
937 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
938 IEEE80211_CAP_DMG_AP;
939 }
940
941 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
942 IEEE80211_CAP_ESS);
943 }
944
945
match_mac_mask(const u8 * addr_a,const u8 * addr_b,const u8 * mask)946 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
947 {
948 size_t i;
949
950 for (i = 0; i < ETH_ALEN; i++) {
951 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
952 return 0;
953 }
954 return 1;
955 }
956
957
addr_in_list(const u8 * addr,const u8 * list,size_t num)958 static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
959 {
960 size_t i;
961
962 for (i = 0; i < num; i++) {
963 const u8 *a = list + i * ETH_ALEN * 2;
964 const u8 *m = a + ETH_ALEN;
965
966 if (match_mac_mask(a, addr, m))
967 return 1;
968 }
969 return 0;
970 }
971
972
owe_trans_ssid(struct wpa_supplicant * wpa_s,struct wpa_bss * bss,const u8 ** ret_ssid,size_t * ret_ssid_len)973 static void owe_trans_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
974 const u8 **ret_ssid, size_t *ret_ssid_len)
975 {
976 #ifdef CONFIG_OWE
977 const u8 *owe, *pos, *end, *bssid;
978 u8 ssid_len;
979 struct wpa_bss *open_bss;
980
981 owe = wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE);
982 if (!owe || !wpa_bss_get_ie(bss, WLAN_EID_RSN))
983 return;
984
985 pos = owe + 6;
986 end = owe + 2 + owe[1];
987
988 if (end - pos < ETH_ALEN + 1)
989 return;
990 bssid = pos;
991 pos += ETH_ALEN;
992 ssid_len = *pos++;
993 if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN)
994 return;
995
996 /* Match the profile SSID against the OWE transition mode SSID on the
997 * open network. */
998 wpa_dbg(wpa_s, MSG_DEBUG, "OWE: transition mode BSSID: " MACSTR
999 " SSID: %s", MAC2STR(bssid), wpa_ssid_txt(pos, ssid_len));
1000 *ret_ssid = pos;
1001 *ret_ssid_len = ssid_len;
1002
1003 if (!(bss->flags & WPA_BSS_OWE_TRANSITION)) {
1004 struct wpa_ssid *ssid;
1005
1006 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1007 if (wpas_network_disabled(wpa_s, ssid))
1008 continue;
1009 if (ssid->ssid_len == ssid_len &&
1010 os_memcmp(ssid->ssid, pos, ssid_len) == 0) {
1011 /* OWE BSS in transition mode for a currently
1012 * enabled OWE network. */
1013 wpa_dbg(wpa_s, MSG_DEBUG,
1014 "OWE: transition mode OWE SSID for active OWE profile");
1015 bss->flags |= WPA_BSS_OWE_TRANSITION;
1016 break;
1017 }
1018 }
1019 }
1020
1021 if (bss->ssid_len > 0)
1022 return;
1023
1024 open_bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
1025 if (!open_bss)
1026 return;
1027 if (ssid_len != open_bss->ssid_len ||
1028 os_memcmp(pos, open_bss->ssid, ssid_len) != 0) {
1029 wpa_dbg(wpa_s, MSG_DEBUG,
1030 "OWE: transition mode SSID mismatch: %s",
1031 wpa_ssid_txt(open_bss->ssid, open_bss->ssid_len));
1032 return;
1033 }
1034
1035 owe = wpa_bss_get_vendor_ie(open_bss, OWE_IE_VENDOR_TYPE);
1036 if (!owe || wpa_bss_get_ie(open_bss, WLAN_EID_RSN)) {
1037 wpa_dbg(wpa_s, MSG_DEBUG,
1038 "OWE: transition mode open BSS unexpected info");
1039 return;
1040 }
1041
1042 pos = owe + 6;
1043 end = owe + 2 + owe[1];
1044
1045 if (end - pos < ETH_ALEN + 1)
1046 return;
1047 if (os_memcmp(pos, bss->bssid, ETH_ALEN) != 0) {
1048 wpa_dbg(wpa_s, MSG_DEBUG,
1049 "OWE: transition mode BSSID mismatch: " MACSTR,
1050 MAC2STR(pos));
1051 return;
1052 }
1053 pos += ETH_ALEN;
1054 ssid_len = *pos++;
1055 if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN)
1056 return;
1057 wpa_dbg(wpa_s, MSG_DEBUG, "OWE: learned transition mode OWE SSID: %s",
1058 wpa_ssid_txt(pos, ssid_len));
1059 os_memcpy(bss->ssid, pos, ssid_len);
1060 bss->ssid_len = ssid_len;
1061 bss->flags |= WPA_BSS_OWE_TRANSITION;
1062 #endif /* CONFIG_OWE */
1063 }
1064
1065
disabled_freq(struct wpa_supplicant * wpa_s,int freq)1066 int disabled_freq(struct wpa_supplicant *wpa_s, int freq)
1067 {
1068 int i, j;
1069
1070 if (!wpa_s->hw.modes || !wpa_s->hw.num_modes)
1071 return 0;
1072
1073 for (j = 0; j < wpa_s->hw.num_modes; j++) {
1074 struct hostapd_hw_modes *mode = &wpa_s->hw.modes[j];
1075
1076 for (i = 0; i < mode->num_channels; i++) {
1077 struct hostapd_channel_data *chan = &mode->channels[i];
1078
1079 if (chan->freq == freq)
1080 return !!(chan->flag & HOSTAPD_CHAN_DISABLED);
1081 }
1082 }
1083
1084 return 1;
1085 }
1086
1087
1088 static bool wpa_scan_res_ok(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
1089 const u8 *match_ssid, size_t match_ssid_len,
1090 struct wpa_bss *bss, int bssid_ignore_count,
1091 bool debug_print);
1092
1093
1094 #ifdef CONFIG_SAE_PK
sae_pk_acceptable_bss_with_pk(struct wpa_supplicant * wpa_s,struct wpa_bss * orig_bss,struct wpa_ssid * ssid,const u8 * match_ssid,size_t match_ssid_len)1095 static bool sae_pk_acceptable_bss_with_pk(struct wpa_supplicant *wpa_s,
1096 struct wpa_bss *orig_bss,
1097 struct wpa_ssid *ssid,
1098 const u8 *match_ssid,
1099 size_t match_ssid_len)
1100 {
1101 struct wpa_bss *bss;
1102
1103 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1104 int count;
1105 const u8 *ie;
1106 u8 rsnxe_capa = 0;
1107
1108 if (bss == orig_bss)
1109 continue;
1110 ie = wpa_bss_get_ie(bss, WLAN_EID_RSNX);
1111 if (ie && ie[1] >= 1)
1112 rsnxe_capa = ie[2];
1113 if (!(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_PK)))
1114 continue;
1115
1116 /* TODO: Could be more thorough in checking what kind of
1117 * signal strength or throughput estimate would be acceptable
1118 * compared to the originally selected BSS. */
1119 if (bss->est_throughput < 2000)
1120 return false;
1121
1122 count = wpa_bssid_ignore_is_listed(wpa_s, bss->bssid);
1123 if (wpa_scan_res_ok(wpa_s, ssid, match_ssid, match_ssid_len,
1124 bss, count, 0))
1125 return true;
1126 }
1127
1128 return false;
1129 }
1130 #endif /* CONFIG_SAE_PK */
1131
1132
wpa_scan_res_ok(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,const u8 * match_ssid,size_t match_ssid_len,struct wpa_bss * bss,int bssid_ignore_count,bool debug_print)1133 static bool wpa_scan_res_ok(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
1134 const u8 *match_ssid, size_t match_ssid_len,
1135 struct wpa_bss *bss, int bssid_ignore_count,
1136 bool debug_print)
1137 {
1138 int res;
1139 bool wpa, check_ssid, osen, rsn_osen = false;
1140 struct wpa_ie_data data;
1141 #ifdef CONFIG_MBO
1142 const u8 *assoc_disallow;
1143 #endif /* CONFIG_MBO */
1144 #ifdef CONFIG_SAE
1145 u8 rsnxe_capa = 0;
1146 #endif /* CONFIG_SAE */
1147 const u8 *ie;
1148
1149 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1150 wpa = ie && ie[1];
1151 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1152 wpa |= ie && ie[1];
1153 if (ie && wpa_parse_wpa_ie_rsn(ie, 2 + ie[1], &data) == 0 &&
1154 (data.key_mgmt & WPA_KEY_MGMT_OSEN))
1155 rsn_osen = true;
1156 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
1157 osen = ie != NULL;
1158
1159 #ifdef CONFIG_SAE
1160 ie = wpa_bss_get_ie(bss, WLAN_EID_RSNX);
1161 if (ie && ie[1] >= 1)
1162 rsnxe_capa = ie[2];
1163 #endif /* CONFIG_SAE */
1164
1165 check_ssid = wpa || ssid->ssid_len > 0;
1166
1167 if (wpas_network_disabled(wpa_s, ssid)) {
1168 if (debug_print)
1169 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
1170 return false;
1171 }
1172
1173 res = wpas_temp_disabled(wpa_s, ssid);
1174 if (res > 0) {
1175 if (debug_print)
1176 wpa_dbg(wpa_s, MSG_DEBUG,
1177 " skip - disabled temporarily for %d second(s)",
1178 res);
1179 return false;
1180 }
1181
1182 #ifdef CONFIG_WPS
1183 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && bssid_ignore_count) {
1184 if (debug_print)
1185 wpa_dbg(wpa_s, MSG_DEBUG,
1186 " skip - BSSID ignored (WPS)");
1187 return false;
1188 }
1189
1190 if (wpa && ssid->ssid_len == 0 &&
1191 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
1192 check_ssid = false;
1193
1194 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
1195 /* Only allow wildcard SSID match if an AP advertises active
1196 * WPS operation that matches our mode. */
1197 check_ssid = ssid->ssid_len > 0 ||
1198 !wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss);
1199 }
1200 #endif /* CONFIG_WPS */
1201
1202 if (ssid->bssid_set && ssid->ssid_len == 0 &&
1203 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
1204 check_ssid = false;
1205
1206 if (check_ssid &&
1207 (match_ssid_len != ssid->ssid_len ||
1208 os_memcmp(match_ssid, ssid->ssid, match_ssid_len) != 0)) {
1209 if (debug_print)
1210 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
1211 return false;
1212 }
1213
1214 if (ssid->bssid_set &&
1215 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
1216 if (debug_print)
1217 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
1218 return false;
1219 }
1220
1221 /* check the list of BSSIDs to ignore */
1222 if (ssid->num_bssid_ignore &&
1223 addr_in_list(bss->bssid, ssid->bssid_ignore,
1224 ssid->num_bssid_ignore)) {
1225 if (debug_print)
1226 wpa_dbg(wpa_s, MSG_DEBUG,
1227 " skip - BSSID configured to be ignored");
1228 return false;
1229 }
1230
1231 /* if there is a list of accepted BSSIDs, only accept those APs */
1232 if (ssid->num_bssid_accept &&
1233 !addr_in_list(bss->bssid, ssid->bssid_accept,
1234 ssid->num_bssid_accept)) {
1235 if (debug_print)
1236 wpa_dbg(wpa_s, MSG_DEBUG,
1237 " skip - BSSID not in list of accepted values");
1238 return false;
1239 }
1240
1241 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss, debug_print))
1242 return false;
1243
1244 if (!osen && !wpa &&
1245 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
1246 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
1247 !(ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
1248 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
1249 if (debug_print)
1250 wpa_dbg(wpa_s, MSG_DEBUG,
1251 " skip - non-WPA network not allowed");
1252 return false;
1253 }
1254
1255 #ifdef CONFIG_WEP
1256 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) && has_wep_key(ssid)) {
1257 if (debug_print)
1258 wpa_dbg(wpa_s, MSG_DEBUG,
1259 " skip - ignore WPA/WPA2 AP for WEP network block");
1260 return false;
1261 }
1262 #endif /* CONFIG_WEP */
1263
1264 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen && !rsn_osen) {
1265 if (debug_print)
1266 wpa_dbg(wpa_s, MSG_DEBUG,
1267 " skip - non-OSEN network not allowed");
1268 return false;
1269 }
1270
1271 if (!wpa_supplicant_match_privacy(bss, ssid)) {
1272 if (debug_print)
1273 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy mismatch");
1274 return false;
1275 }
1276
1277 if (ssid->mode != WPAS_MODE_MESH && !bss_is_ess(bss) &&
1278 !bss_is_pbss(bss)) {
1279 if (debug_print)
1280 wpa_dbg(wpa_s, MSG_DEBUG,
1281 " skip - not ESS, PBSS, or MBSS");
1282 return false;
1283 }
1284
1285 if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) {
1286 if (debug_print)
1287 wpa_dbg(wpa_s, MSG_DEBUG,
1288 " skip - PBSS mismatch (ssid %d bss %d)",
1289 ssid->pbss, bss_is_pbss(bss));
1290 return false;
1291 }
1292
1293 if (!freq_allowed(ssid->freq_list, bss->freq)) {
1294 if (debug_print)
1295 wpa_dbg(wpa_s, MSG_DEBUG,
1296 " skip - frequency not allowed");
1297 return false;
1298 }
1299
1300 #ifdef CONFIG_MESH
1301 if (ssid->mode == WPAS_MODE_MESH && ssid->frequency > 0 &&
1302 ssid->frequency != bss->freq) {
1303 if (debug_print)
1304 wpa_dbg(wpa_s, MSG_DEBUG,
1305 " skip - frequency not allowed (mesh)");
1306 return false;
1307 }
1308 #endif /* CONFIG_MESH */
1309
1310 if (!rate_match(wpa_s, ssid, bss, debug_print)) {
1311 if (debug_print)
1312 wpa_dbg(wpa_s, MSG_DEBUG,
1313 " skip - rate sets do not match");
1314 return false;
1315 }
1316
1317 #ifdef CONFIG_SAE
1318 if ((wpa_s->conf->sae_pwe == 1 || ssid->sae_password_id) &&
1319 wpa_s->conf->sae_pwe != 3 && wpa_key_mgmt_sae(ssid->key_mgmt) &&
1320 !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_H2E))) {
1321 if (debug_print)
1322 wpa_dbg(wpa_s, MSG_DEBUG,
1323 " skip - SAE H2E required, but not supported by the AP");
1324 return false;
1325 }
1326 #endif /* CONFIG_SAE */
1327
1328 #ifdef CONFIG_SAE_PK
1329 if (ssid->sae_pk == SAE_PK_MODE_ONLY &&
1330 !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_PK))) {
1331 if (debug_print)
1332 wpa_dbg(wpa_s, MSG_DEBUG,
1333 " skip - SAE-PK required, but not supported by the AP");
1334 return false;
1335 }
1336 #endif /* CONFIG_SAE_PK */
1337
1338 #ifndef CONFIG_IBSS_RSN
1339 if (ssid->mode == WPAS_MODE_IBSS &&
1340 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE | WPA_KEY_MGMT_WPA_NONE))) {
1341 if (debug_print)
1342 wpa_dbg(wpa_s, MSG_DEBUG,
1343 " skip - IBSS RSN not supported in the build");
1344 return false;
1345 }
1346 #endif /* !CONFIG_IBSS_RSN */
1347
1348 #ifdef CONFIG_P2P
1349 if (ssid->p2p_group &&
1350 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1351 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1352 if (debug_print)
1353 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
1354 return false;
1355 }
1356
1357 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1358 struct wpabuf *p2p_ie;
1359 u8 dev_addr[ETH_ALEN];
1360
1361 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1362 if (!ie) {
1363 if (debug_print)
1364 wpa_dbg(wpa_s, MSG_DEBUG,
1365 " skip - no P2P element");
1366 return false;
1367 }
1368 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
1369 if (!p2p_ie) {
1370 if (debug_print)
1371 wpa_dbg(wpa_s, MSG_DEBUG,
1372 " skip - could not fetch P2P element");
1373 return false;
1374 }
1375
1376 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0 ||
1377 os_memcmp(dev_addr, ssid->go_p2p_dev_addr, ETH_ALEN) != 0) {
1378 if (debug_print)
1379 wpa_dbg(wpa_s, MSG_DEBUG,
1380 " skip - no matching GO P2P Device Address in P2P element");
1381 wpabuf_free(p2p_ie);
1382 return false;
1383 }
1384 wpabuf_free(p2p_ie);
1385 }
1386
1387 /*
1388 * TODO: skip the AP if its P2P IE has Group Formation bit set in the
1389 * P2P Group Capability Bitmap and we are not in Group Formation with
1390 * that device.
1391 */
1392 #endif /* CONFIG_P2P */
1393
1394 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time)) {
1395 struct os_reltime diff;
1396
1397 os_reltime_sub(&wpa_s->scan_min_time, &bss->last_update, &diff);
1398 if (debug_print)
1399 wpa_dbg(wpa_s, MSG_DEBUG,
1400 " skip - scan result not recent enough (%u.%06u seconds too old)",
1401 (unsigned int) diff.sec,
1402 (unsigned int) diff.usec);
1403 return false;
1404 }
1405 #ifdef CONFIG_MBO
1406 #ifdef CONFIG_TESTING_OPTIONS
1407 if (wpa_s->ignore_assoc_disallow)
1408 goto skip_assoc_disallow;
1409 #endif /* CONFIG_TESTING_OPTIONS */
1410 assoc_disallow = wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_ASSOC_DISALLOW);
1411 if (assoc_disallow && assoc_disallow[1] >= 1) {
1412 if (debug_print)
1413 wpa_dbg(wpa_s, MSG_DEBUG,
1414 " skip - MBO association disallowed (reason %u)",
1415 assoc_disallow[2]);
1416 return false;
1417 }
1418
1419 if (wpa_is_bss_tmp_disallowed(wpa_s, bss)) {
1420 if (debug_print)
1421 wpa_dbg(wpa_s, MSG_DEBUG,
1422 " skip - AP temporarily disallowed");
1423 return false;
1424 }
1425 #ifdef CONFIG_TESTING_OPTIONS
1426 skip_assoc_disallow:
1427 #endif /* CONFIG_TESTING_OPTIONS */
1428 #endif /* CONFIG_MBO */
1429
1430 #ifdef CONFIG_DPP
1431 if ((ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
1432 !wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, ssid) &&
1433 (!ssid->dpp_connector || !ssid->dpp_netaccesskey ||
1434 !ssid->dpp_csign)) {
1435 if (debug_print)
1436 wpa_dbg(wpa_s, MSG_DEBUG,
1437 " skip - no PMKSA entry for DPP");
1438 return false;
1439 }
1440 #endif /* CONFIG_DPP */
1441
1442 #ifdef CONFIG_SAE_PK
1443 if (ssid->sae_pk == SAE_PK_MODE_AUTOMATIC &&
1444 wpa_key_mgmt_sae(ssid->key_mgmt) &&
1445 ((ssid->sae_password &&
1446 sae_pk_valid_password(ssid->sae_password)) ||
1447 (!ssid->sae_password && ssid->passphrase &&
1448 sae_pk_valid_password(ssid->passphrase))) &&
1449 !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_PK)) &&
1450 sae_pk_acceptable_bss_with_pk(wpa_s, bss, ssid, match_ssid,
1451 match_ssid_len)) {
1452 if (debug_print)
1453 wpa_dbg(wpa_s, MSG_DEBUG,
1454 " skip - another acceptable BSS with SAE-PK in the same ESS");
1455 return false;
1456 }
1457 #endif /* CONFIG_SAE_PK */
1458
1459 if (bss->ssid_len == 0) {
1460 if (debug_print)
1461 wpa_dbg(wpa_s, MSG_DEBUG,
1462 " skip - no SSID known for the BSS");
1463 return false;
1464 }
1465
1466 /* Matching configuration found */
1467 return true;
1468 }
1469
1470
wpa_scan_res_match(struct wpa_supplicant * wpa_s,int i,struct wpa_bss * bss,struct wpa_ssid * group,int only_first_ssid,int debug_print)1471 struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
1472 int i, struct wpa_bss *bss,
1473 struct wpa_ssid *group,
1474 int only_first_ssid, int debug_print)
1475 {
1476 u8 wpa_ie_len, rsn_ie_len;
1477 const u8 *ie;
1478 struct wpa_ssid *ssid;
1479 int osen;
1480 const u8 *match_ssid;
1481 size_t match_ssid_len;
1482 int bssid_ignore_count;
1483
1484 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1485 wpa_ie_len = ie ? ie[1] : 0;
1486
1487 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1488 rsn_ie_len = ie ? ie[1] : 0;
1489
1490 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
1491 osen = ie != NULL;
1492
1493 if (debug_print) {
1494 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR
1495 " ssid='%s' wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
1496 i, MAC2STR(bss->bssid),
1497 wpa_ssid_txt(bss->ssid, bss->ssid_len),
1498 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
1499 bss->freq,
1500 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ?
1501 " wps" : "",
1502 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
1503 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE))
1504 ? " p2p" : "",
1505 osen ? " osen=1" : "");
1506 }
1507
1508 bssid_ignore_count = wpa_bssid_ignore_is_listed(wpa_s, bss->bssid);
1509 if (bssid_ignore_count) {
1510 int limit = 1;
1511 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
1512 /*
1513 * When only a single network is enabled, we can
1514 * trigger BSSID ignoring on the first failure. This
1515 * should not be done with multiple enabled networks to
1516 * avoid getting forced to move into a worse ESS on
1517 * single error if there are no other BSSes of the
1518 * current ESS.
1519 */
1520 limit = 0;
1521 }
1522 if (bssid_ignore_count > limit) {
1523 if (debug_print) {
1524 wpa_dbg(wpa_s, MSG_DEBUG,
1525 " skip - BSSID ignored (count=%d limit=%d)",
1526 bssid_ignore_count, limit);
1527 }
1528 return NULL;
1529 }
1530 }
1531
1532 match_ssid = bss->ssid;
1533 match_ssid_len = bss->ssid_len;
1534 owe_trans_ssid(wpa_s, bss, &match_ssid, &match_ssid_len);
1535
1536 if (match_ssid_len == 0) {
1537 if (debug_print)
1538 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
1539 return NULL;
1540 }
1541
1542 if (disallowed_bssid(wpa_s, bss->bssid)) {
1543 if (debug_print)
1544 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
1545 return NULL;
1546 }
1547
1548 if (disallowed_ssid(wpa_s, match_ssid, match_ssid_len)) {
1549 if (debug_print)
1550 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
1551 return NULL;
1552 }
1553
1554 if (disabled_freq(wpa_s, bss->freq)) {
1555 if (debug_print)
1556 wpa_dbg(wpa_s, MSG_DEBUG, " skip - channel disabled");
1557 return NULL;
1558 }
1559
1560 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
1561 if (wpa_scan_res_ok(wpa_s, ssid, match_ssid, match_ssid_len,
1562 bss, bssid_ignore_count, debug_print))
1563 return ssid;
1564 }
1565
1566 /* No matching configuration found */
1567 return NULL;
1568 }
1569
1570
1571 static struct wpa_bss *
wpa_supplicant_select_bss(struct wpa_supplicant * wpa_s,struct wpa_ssid * group,struct wpa_ssid ** selected_ssid,int only_first_ssid)1572 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1573 struct wpa_ssid *group,
1574 struct wpa_ssid **selected_ssid,
1575 int only_first_ssid)
1576 {
1577 unsigned int i;
1578
1579 if (wpa_s->current_ssid) {
1580 struct wpa_ssid *ssid;
1581
1582 wpa_dbg(wpa_s, MSG_DEBUG,
1583 "Scan results matching the currently selected network");
1584 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1585 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1586
1587 ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1588 only_first_ssid, 0);
1589 if (ssid != wpa_s->current_ssid)
1590 continue;
1591 wpa_dbg(wpa_s, MSG_DEBUG, "%u: " MACSTR
1592 " freq=%d level=%d snr=%d est_throughput=%u",
1593 i, MAC2STR(bss->bssid), bss->freq, bss->level,
1594 bss->snr, bss->est_throughput);
1595 }
1596 }
1597
1598 if (only_first_ssid)
1599 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1600 group->id);
1601 else
1602 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1603 group->priority);
1604
1605 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1606 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1607
1608 wpa_s->owe_transition_select = 1;
1609 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1610 only_first_ssid, 1);
1611 wpa_s->owe_transition_select = 0;
1612 if (!*selected_ssid)
1613 continue;
1614 wpa_dbg(wpa_s, MSG_DEBUG, " selected %sBSS " MACSTR
1615 " ssid='%s'",
1616 bss == wpa_s->current_bss ? "current ": "",
1617 MAC2STR(bss->bssid),
1618 wpa_ssid_txt(bss->ssid, bss->ssid_len));
1619 return bss;
1620 }
1621
1622 return NULL;
1623 }
1624
1625
wpa_supplicant_pick_network(struct wpa_supplicant * wpa_s,struct wpa_ssid ** selected_ssid)1626 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1627 struct wpa_ssid **selected_ssid)
1628 {
1629 struct wpa_bss *selected = NULL;
1630 size_t prio;
1631 struct wpa_ssid *next_ssid = NULL;
1632 struct wpa_ssid *ssid;
1633
1634 if (wpa_s->last_scan_res == NULL ||
1635 wpa_s->last_scan_res_used == 0)
1636 return NULL; /* no scan results from last update */
1637
1638 if (wpa_s->next_ssid) {
1639 /* check that next_ssid is still valid */
1640 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1641 if (ssid == wpa_s->next_ssid)
1642 break;
1643 }
1644 next_ssid = ssid;
1645 wpa_s->next_ssid = NULL;
1646 }
1647
1648 while (selected == NULL) {
1649 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1650 if (next_ssid && next_ssid->priority ==
1651 wpa_s->conf->pssid[prio]->priority) {
1652 selected = wpa_supplicant_select_bss(
1653 wpa_s, next_ssid, selected_ssid, 1);
1654 if (selected)
1655 break;
1656 }
1657 selected = wpa_supplicant_select_bss(
1658 wpa_s, wpa_s->conf->pssid[prio],
1659 selected_ssid, 0);
1660 if (selected)
1661 break;
1662 }
1663
1664 if (selected == NULL && wpa_s->bssid_ignore &&
1665 !wpa_s->countermeasures) {
1666 wpa_dbg(wpa_s, MSG_DEBUG,
1667 "No APs found - clear BSSID ignore list and try again");
1668 wpa_bssid_ignore_clear(wpa_s);
1669 wpa_s->bssid_ignore_cleared = true;
1670 } else if (selected == NULL)
1671 break;
1672 }
1673
1674 ssid = *selected_ssid;
1675 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1676 !ssid->passphrase && !ssid->ext_psk) {
1677 const char *field_name, *txt = NULL;
1678
1679 wpa_dbg(wpa_s, MSG_DEBUG,
1680 "PSK/passphrase not yet available for the selected network");
1681
1682 wpas_notify_network_request(wpa_s, ssid,
1683 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1684
1685 field_name = wpa_supplicant_ctrl_req_to_string(
1686 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1687 if (field_name == NULL)
1688 return NULL;
1689
1690 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1691
1692 selected = NULL;
1693 }
1694
1695 return selected;
1696 }
1697
1698
wpa_supplicant_req_new_scan(struct wpa_supplicant * wpa_s,int timeout_sec,int timeout_usec)1699 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1700 int timeout_sec, int timeout_usec)
1701 {
1702 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1703 /*
1704 * No networks are enabled; short-circuit request so
1705 * we don't wait timeout seconds before transitioning
1706 * to INACTIVE state.
1707 */
1708 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1709 "since there are no enabled networks");
1710 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1711 return;
1712 }
1713
1714 wpa_s->scan_for_connection = 1;
1715 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1716 }
1717
1718
wpa_supplicant_connect(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)1719 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1720 struct wpa_bss *selected,
1721 struct wpa_ssid *ssid)
1722 {
1723 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1724 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1725 "PBC session overlap");
1726 wpas_notify_wps_event_pbc_overlap(wpa_s);
1727 #ifdef CONFIG_P2P
1728 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1729 wpa_s->p2p_in_provisioning) {
1730 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1731 wpa_s, NULL);
1732 return -1;
1733 }
1734 #endif /* CONFIG_P2P */
1735
1736 #ifdef CONFIG_WPS
1737 wpas_wps_pbc_overlap(wpa_s);
1738 wpas_wps_cancel(wpa_s);
1739 #endif /* CONFIG_WPS */
1740 return -1;
1741 }
1742
1743 wpa_msg(wpa_s, MSG_DEBUG,
1744 "Considering connect request: reassociate: %d selected: "
1745 MACSTR " bssid: " MACSTR " pending: " MACSTR
1746 " wpa_state: %s ssid=%p current_ssid=%p",
1747 wpa_s->reassociate, MAC2STR(selected->bssid),
1748 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1749 wpa_supplicant_state_txt(wpa_s->wpa_state),
1750 ssid, wpa_s->current_ssid);
1751
1752 /*
1753 * Do not trigger new association unless the BSSID has changed or if
1754 * reassociation is requested. If we are in process of associating with
1755 * the selected BSSID, do not trigger new attempt.
1756 */
1757 if (wpa_s->reassociate ||
1758 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1759 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1760 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1761 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1762 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1763 0) ||
1764 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1765 ssid != wpa_s->current_ssid)))) {
1766 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1767 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1768 return 0;
1769 }
1770 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1771 MAC2STR(selected->bssid));
1772 wpa_supplicant_associate(wpa_s, selected, ssid);
1773 } else {
1774 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1775 "connect with the selected AP");
1776 }
1777
1778 return 0;
1779 }
1780
1781
1782 static struct wpa_ssid *
wpa_supplicant_pick_new_network(struct wpa_supplicant * wpa_s)1783 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1784 {
1785 size_t prio;
1786 struct wpa_ssid *ssid;
1787
1788 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1789 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1790 {
1791 if (wpas_network_disabled(wpa_s, ssid))
1792 continue;
1793 #ifndef CONFIG_IBSS_RSN
1794 if (ssid->mode == WPAS_MODE_IBSS &&
1795 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE |
1796 WPA_KEY_MGMT_WPA_NONE))) {
1797 wpa_msg(wpa_s, MSG_INFO,
1798 "IBSS RSN not supported in the build - cannot use the profile for SSID '%s'",
1799 wpa_ssid_txt(ssid->ssid,
1800 ssid->ssid_len));
1801 continue;
1802 }
1803 #endif /* !CONFIG_IBSS_RSN */
1804 if (ssid->mode == WPAS_MODE_IBSS ||
1805 ssid->mode == WPAS_MODE_AP ||
1806 ssid->mode == WPAS_MODE_MESH)
1807 return ssid;
1808 }
1809 }
1810 return NULL;
1811 }
1812
1813
1814 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1815 * on BSS added and BSS changed events */
wpa_supplicant_rsn_preauth_scan_results(struct wpa_supplicant * wpa_s)1816 static void wpa_supplicant_rsn_preauth_scan_results(
1817 struct wpa_supplicant *wpa_s)
1818 {
1819 struct wpa_bss *bss;
1820
1821 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1822 return;
1823
1824 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1825 const u8 *ssid, *rsn;
1826
1827 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1828 if (ssid == NULL)
1829 continue;
1830
1831 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1832 if (rsn == NULL)
1833 continue;
1834
1835 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1836 }
1837
1838 }
1839
1840
1841 #ifndef CONFIG_NO_ROAMING
1842
wpas_get_snr_signal_info(u32 frequency,int avg_signal,int noise)1843 static int wpas_get_snr_signal_info(u32 frequency, int avg_signal, int noise)
1844 {
1845 if (noise == WPA_INVALID_NOISE)
1846 noise = IS_5GHZ(frequency) ? DEFAULT_NOISE_FLOOR_5GHZ :
1847 DEFAULT_NOISE_FLOOR_2GHZ;
1848 return avg_signal - noise;
1849 }
1850
1851
1852 static unsigned int
wpas_get_est_throughput_from_bss_snr(const struct wpa_supplicant * wpa_s,const struct wpa_bss * bss,int snr)1853 wpas_get_est_throughput_from_bss_snr(const struct wpa_supplicant *wpa_s,
1854 const struct wpa_bss *bss, int snr)
1855 {
1856 int rate = wpa_bss_get_max_rate(bss);
1857 const u8 *ies = wpa_bss_ie_ptr(bss);
1858 size_t ie_len = bss->ie_len ? bss->ie_len : bss->beacon_ie_len;
1859
1860 return wpas_get_est_tpt(wpa_s, ies, ie_len, rate, snr);
1861 }
1862
1863
wpa_supplicant_need_to_roam_within_ess(struct wpa_supplicant * wpa_s,struct wpa_bss * current_bss,struct wpa_bss * selected)1864 int wpa_supplicant_need_to_roam_within_ess(struct wpa_supplicant *wpa_s,
1865 struct wpa_bss *current_bss,
1866 struct wpa_bss *selected)
1867 {
1868 int min_diff, diff;
1869 int to_5ghz;
1870 int cur_level;
1871 unsigned int cur_est, sel_est;
1872 struct wpa_signal_info si;
1873 int cur_snr = 0;
1874 int ret = 0;
1875
1876 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1877 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1878 " freq=%d level=%d snr=%d est_throughput=%u",
1879 MAC2STR(current_bss->bssid),
1880 current_bss->freq, current_bss->level,
1881 current_bss->snr, current_bss->est_throughput);
1882 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1883 " freq=%d level=%d snr=%d est_throughput=%u",
1884 MAC2STR(selected->bssid), selected->freq, selected->level,
1885 selected->snr, selected->est_throughput);
1886
1887 if (wpa_s->current_ssid->bssid_set &&
1888 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1889 0) {
1890 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1891 "has preferred BSSID");
1892 return 1;
1893 }
1894
1895 cur_level = current_bss->level;
1896 cur_est = current_bss->est_throughput;
1897 sel_est = selected->est_throughput;
1898
1899 /*
1900 * Try to poll the signal from the driver since this will allow to get
1901 * more accurate values. In some cases, there can be big differences
1902 * between the RSSI of the Probe Response frames of the AP we are
1903 * associated with and the Beacon frames we hear from the same AP after
1904 * association. This can happen, e.g., when there are two antennas that
1905 * hear the AP very differently. If the driver chooses to hear the
1906 * Probe Response frames during the scan on the "bad" antenna because
1907 * it wants to save power, but knows to choose the other antenna after
1908 * association, we will hear our AP with a low RSSI as part of the
1909 * scan even when we can hear it decently on the other antenna. To cope
1910 * with this, ask the driver to teach us how it hears the AP. Also, the
1911 * scan results may be a bit old, since we can very quickly get fresh
1912 * information about our currently associated AP.
1913 */
1914 if (wpa_drv_signal_poll(wpa_s, &si) == 0 &&
1915 (si.avg_beacon_signal || si.avg_signal)) {
1916 cur_level = si.avg_beacon_signal ? si.avg_beacon_signal :
1917 si.avg_signal;
1918 cur_snr = wpas_get_snr_signal_info(si.frequency, cur_level,
1919 si.current_noise);
1920
1921 cur_est = wpas_get_est_throughput_from_bss_snr(wpa_s,
1922 current_bss,
1923 cur_snr);
1924 wpa_dbg(wpa_s, MSG_DEBUG,
1925 "Using signal poll values for the current BSS: level=%d snr=%d est_throughput=%u",
1926 cur_level, cur_snr, cur_est);
1927 }
1928
1929 if (sel_est > cur_est + 5000) {
1930 wpa_dbg(wpa_s, MSG_DEBUG,
1931 "Allow reassociation - selected BSS has better estimated throughput");
1932 return 1;
1933 }
1934
1935 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
1936
1937 if (cur_level < 0 && cur_level > selected->level + to_5ghz * 2 &&
1938 sel_est < cur_est * 1.2) {
1939 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1940 "signal level");
1941 return 0;
1942 }
1943
1944 if (cur_est > sel_est + 5000) {
1945 wpa_dbg(wpa_s, MSG_DEBUG,
1946 "Skip roam - Current BSS has better estimated throughput");
1947 return 0;
1948 }
1949
1950 if (cur_snr > GREAT_SNR) {
1951 wpa_dbg(wpa_s, MSG_DEBUG,
1952 "Skip roam - Current BSS has good SNR (%u > %u)",
1953 cur_snr, GREAT_SNR);
1954 return 0;
1955 }
1956
1957 if (cur_level < -85) /* ..-86 dBm */
1958 min_diff = 1;
1959 else if (cur_level < -80) /* -85..-81 dBm */
1960 min_diff = 2;
1961 else if (cur_level < -75) /* -80..-76 dBm */
1962 min_diff = 3;
1963 else if (cur_level < -70) /* -75..-71 dBm */
1964 min_diff = 4;
1965 else if (cur_level < 0) /* -70..-1 dBm */
1966 min_diff = 5;
1967 else /* unspecified units (not in dBm) */
1968 min_diff = 2;
1969
1970 if (cur_est > sel_est * 1.5)
1971 min_diff += 10;
1972 else if (cur_est > sel_est * 1.2)
1973 min_diff += 5;
1974 else if (cur_est > sel_est * 1.1)
1975 min_diff += 2;
1976 else if (cur_est > sel_est)
1977 min_diff++;
1978 else if (sel_est > cur_est * 1.5)
1979 min_diff -= 10;
1980 else if (sel_est > cur_est * 1.2)
1981 min_diff -= 5;
1982 else if (sel_est > cur_est * 1.1)
1983 min_diff -= 2;
1984 else if (sel_est > cur_est)
1985 min_diff--;
1986
1987 if (to_5ghz)
1988 min_diff -= 2;
1989 diff = selected->level - cur_level;
1990 if (diff < min_diff) {
1991 wpa_dbg(wpa_s, MSG_DEBUG,
1992 "Skip roam - too small difference in signal level (%d < %d)",
1993 diff, min_diff);
1994 ret = 0;
1995 } else {
1996 wpa_dbg(wpa_s, MSG_DEBUG,
1997 "Allow reassociation due to difference in signal level (%d >= %d)",
1998 diff, min_diff);
1999 ret = 1;
2000 }
2001 wpa_msg_ctrl(wpa_s, MSG_INFO, "%scur_bssid=" MACSTR
2002 " cur_freq=%d cur_level=%d cur_est=%d sel_bssid=" MACSTR
2003 " sel_freq=%d sel_level=%d sel_est=%d",
2004 ret ? WPA_EVENT_DO_ROAM : WPA_EVENT_SKIP_ROAM,
2005 MAC2STR(current_bss->bssid),
2006 current_bss->freq, cur_level, cur_est,
2007 MAC2STR(selected->bssid),
2008 selected->freq, selected->level, sel_est);
2009 return ret;
2010 }
2011
2012 #endif /* CONFIG_NO_ROAMING */
2013
2014
wpa_supplicant_need_to_roam(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)2015 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
2016 struct wpa_bss *selected,
2017 struct wpa_ssid *ssid)
2018 {
2019 struct wpa_bss *current_bss = NULL;
2020
2021 if (wpa_s->reassociate)
2022 return 1; /* explicit request to reassociate */
2023 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2024 return 1; /* we are not associated; continue */
2025 if (wpa_s->current_ssid == NULL)
2026 return 1; /* unknown current SSID */
2027 if (wpa_s->current_ssid != ssid)
2028 return 1; /* different network block */
2029
2030 if (wpas_driver_bss_selection(wpa_s))
2031 return 0; /* Driver-based roaming */
2032
2033 if (wpa_s->current_ssid->ssid)
2034 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
2035 wpa_s->current_ssid->ssid,
2036 wpa_s->current_ssid->ssid_len);
2037 if (!current_bss)
2038 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
2039
2040 if (!current_bss)
2041 return 1; /* current BSS not seen in scan results */
2042
2043 if (current_bss == selected)
2044 return 0;
2045
2046 if (selected->last_update_idx > current_bss->last_update_idx)
2047 return 1; /* current BSS not seen in the last scan */
2048
2049 #ifndef CONFIG_NO_ROAMING
2050 return wpa_supplicant_need_to_roam_within_ess(wpa_s, current_bss,
2051 selected);
2052 #else /* CONFIG_NO_ROAMING */
2053 return 0;
2054 #endif /* CONFIG_NO_ROAMING */
2055 }
2056
2057
2058 /*
2059 * Return a negative value if no scan results could be fetched or if scan
2060 * results should not be shared with other virtual interfaces.
2061 * Return 0 if scan results were fetched and may be shared with other
2062 * interfaces.
2063 * Return 1 if scan results may be shared with other virtual interfaces but may
2064 * not trigger any operations.
2065 * Return 2 if the interface was removed and cannot be used.
2066 */
_wpa_supplicant_event_scan_results(struct wpa_supplicant * wpa_s,union wpa_event_data * data,int own_request,int update_only)2067 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
2068 union wpa_event_data *data,
2069 int own_request, int update_only)
2070 {
2071 struct wpa_scan_results *scan_res = NULL;
2072 int ret = 0;
2073 int ap = 0;
2074 #ifndef CONFIG_NO_RANDOM_POOL
2075 size_t i, num;
2076 #endif /* CONFIG_NO_RANDOM_POOL */
2077
2078 #ifdef CONFIG_AP
2079 if (wpa_s->ap_iface)
2080 ap = 1;
2081 #endif /* CONFIG_AP */
2082
2083 wpa_supplicant_notify_scanning(wpa_s, 0);
2084
2085 scan_res = wpa_supplicant_get_scan_results(wpa_s,
2086 data ? &data->scan_info :
2087 NULL, 1);
2088 if (scan_res == NULL) {
2089 if (wpa_s->conf->ap_scan == 2 || ap ||
2090 wpa_s->scan_res_handler == scan_only_handler)
2091 return -1;
2092 if (!own_request)
2093 return -1;
2094 if (data && data->scan_info.external_scan)
2095 return -1;
2096 if (wpa_s->scan_res_fail_handler) {
2097 void (*handler)(struct wpa_supplicant *wpa_s);
2098
2099 handler = wpa_s->scan_res_fail_handler;
2100 wpa_s->scan_res_fail_handler = NULL;
2101 handler(wpa_s);
2102 } else {
2103 wpa_dbg(wpa_s, MSG_DEBUG,
2104 "Failed to get scan results - try scanning again");
2105 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
2106 }
2107
2108 ret = -1;
2109 goto scan_work_done;
2110 }
2111
2112 #ifndef CONFIG_NO_RANDOM_POOL
2113 num = scan_res->num;
2114 if (num > 10)
2115 num = 10;
2116 for (i = 0; i < num; i++) {
2117 u8 buf[5];
2118 struct wpa_scan_res *res = scan_res->res[i];
2119 buf[0] = res->bssid[5];
2120 buf[1] = res->qual & 0xff;
2121 buf[2] = res->noise & 0xff;
2122 buf[3] = res->level & 0xff;
2123 buf[4] = res->tsf & 0xff;
2124 random_add_randomness(buf, sizeof(buf));
2125 }
2126 #endif /* CONFIG_NO_RANDOM_POOL */
2127
2128 if (update_only) {
2129 ret = 1;
2130 goto scan_work_done;
2131 }
2132
2133 if (own_request && wpa_s->scan_res_handler &&
2134 !(data && data->scan_info.external_scan)) {
2135 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
2136 struct wpa_scan_results *scan_res);
2137
2138 scan_res_handler = wpa_s->scan_res_handler;
2139 wpa_s->scan_res_handler = NULL;
2140 scan_res_handler(wpa_s, scan_res);
2141 ret = 1;
2142 goto scan_work_done;
2143 }
2144
2145 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
2146 wpa_s->own_scan_running,
2147 data ? data->scan_info.external_scan : 0);
2148 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
2149 wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
2150 own_request && !(data && data->scan_info.external_scan)) {
2151 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
2152 wpa_s->manual_scan_id);
2153 wpa_s->manual_scan_use_id = 0;
2154 } else {
2155 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
2156 }
2157 wpas_notify_scan_results(wpa_s);
2158
2159 wpas_notify_scan_done(wpa_s, 1);
2160
2161 if (ap) {
2162 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
2163 #ifdef CONFIG_AP
2164 if (wpa_s->ap_iface->scan_cb)
2165 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
2166 #endif /* CONFIG_AP */
2167 goto scan_work_done;
2168 }
2169
2170 if (data && data->scan_info.external_scan) {
2171 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
2172 wpa_scan_results_free(scan_res);
2173 return 0;
2174 }
2175
2176 if (wnm_scan_process(wpa_s, 1) > 0)
2177 goto scan_work_done;
2178
2179 if (sme_proc_obss_scan(wpa_s, scan_res) > 0)
2180 goto scan_work_done;
2181
2182 if (own_request && data &&
2183 wpas_beacon_rep_scan_process(wpa_s, scan_res, &data->scan_info) > 0)
2184 goto scan_work_done;
2185
2186 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
2187 goto scan_work_done;
2188
2189 if (autoscan_notify_scan(wpa_s, scan_res))
2190 goto scan_work_done;
2191
2192 if (wpa_s->disconnected) {
2193 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2194 goto scan_work_done;
2195 }
2196
2197 if (!wpas_driver_bss_selection(wpa_s) &&
2198 bgscan_notify_scan(wpa_s, scan_res) == 1)
2199 goto scan_work_done;
2200
2201 wpas_wps_update_ap_info(wpa_s, scan_res);
2202
2203 if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
2204 wpa_s->wpa_state < WPA_COMPLETED)
2205 goto scan_work_done;
2206
2207 wpa_scan_results_free(scan_res);
2208
2209 if (own_request && wpa_s->scan_work) {
2210 struct wpa_radio_work *work = wpa_s->scan_work;
2211 wpa_s->scan_work = NULL;
2212 radio_work_done(work);
2213 }
2214
2215 os_free(wpa_s->last_scan_freqs);
2216 wpa_s->last_scan_freqs = NULL;
2217 wpa_s->num_last_scan_freqs = 0;
2218 if (own_request && data &&
2219 data->scan_info.freqs && data->scan_info.num_freqs) {
2220 wpa_s->last_scan_freqs = os_malloc(sizeof(int) *
2221 data->scan_info.num_freqs);
2222 if (wpa_s->last_scan_freqs) {
2223 os_memcpy(wpa_s->last_scan_freqs,
2224 data->scan_info.freqs,
2225 sizeof(int) * data->scan_info.num_freqs);
2226 wpa_s->num_last_scan_freqs = data->scan_info.num_freqs;
2227 }
2228 }
2229
2230 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
2231
2232 scan_work_done:
2233 wpa_scan_results_free(scan_res);
2234 if (own_request && wpa_s->scan_work) {
2235 struct wpa_radio_work *work = wpa_s->scan_work;
2236 wpa_s->scan_work = NULL;
2237 radio_work_done(work);
2238 }
2239 return ret;
2240 }
2241
2242
wpas_select_network_from_last_scan(struct wpa_supplicant * wpa_s,int new_scan,int own_request)2243 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
2244 int new_scan, int own_request)
2245 {
2246 struct wpa_bss *selected;
2247 struct wpa_ssid *ssid = NULL;
2248 int time_to_reenable = wpas_reenabled_network_time(wpa_s);
2249
2250 if (time_to_reenable > 0) {
2251 wpa_dbg(wpa_s, MSG_DEBUG,
2252 "Postpone network selection by %d seconds since all networks are disabled",
2253 time_to_reenable);
2254 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2255 eloop_register_timeout(time_to_reenable, 0,
2256 wpas_network_reenabled, wpa_s, NULL);
2257 return 0;
2258 }
2259
2260 if (wpa_s->p2p_mgmt)
2261 return 0; /* no normal connection on p2p_mgmt interface */
2262
2263 wpa_s->owe_transition_search = 0;
2264 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
2265
2266 #ifdef CONFIG_MESH
2267 if (wpa_s->ifmsh) {
2268 wpa_msg(wpa_s, MSG_INFO,
2269 "Avoiding join because we already joined a mesh group");
2270 return 0;
2271 }
2272 #endif /* CONFIG_MESH */
2273
2274 if (selected) {
2275 int skip;
2276 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
2277 if (skip) {
2278 if (new_scan)
2279 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2280 return 0;
2281 }
2282
2283 wpa_s->suitable_network++;
2284
2285 if (ssid != wpa_s->current_ssid &&
2286 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2287 wpa_s->own_disconnect_req = 1;
2288 wpa_supplicant_deauthenticate(
2289 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2290 }
2291
2292 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
2293 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
2294 return -1;
2295 }
2296 if (new_scan)
2297 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2298 /*
2299 * Do not allow other virtual radios to trigger operations based
2300 * on these scan results since we do not want them to start
2301 * other associations at the same time.
2302 */
2303 return 1;
2304 } else {
2305 wpa_s->no_suitable_network++;
2306 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
2307 ssid = wpa_supplicant_pick_new_network(wpa_s);
2308 if (ssid) {
2309 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
2310 wpa_supplicant_associate(wpa_s, NULL, ssid);
2311 if (new_scan)
2312 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2313 } else if (own_request) {
2314 /*
2315 * No SSID found. If SCAN results are as a result of
2316 * own scan request and not due to a scan request on
2317 * another shared interface, try another scan.
2318 */
2319 int timeout_sec = wpa_s->scan_interval;
2320 int timeout_usec = 0;
2321 #ifdef CONFIG_P2P
2322 int res;
2323
2324 res = wpas_p2p_scan_no_go_seen(wpa_s);
2325 if (res == 2)
2326 return 2;
2327 if (res == 1)
2328 return 0;
2329
2330 if (wpa_s->p2p_in_provisioning ||
2331 wpa_s->show_group_started ||
2332 wpa_s->p2p_in_invitation) {
2333 /*
2334 * Use shorter wait during P2P Provisioning
2335 * state and during P2P join-a-group operation
2336 * to speed up group formation.
2337 */
2338 timeout_sec = 0;
2339 timeout_usec = 250000;
2340 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2341 timeout_usec);
2342 return 0;
2343 }
2344 #endif /* CONFIG_P2P */
2345 #ifdef CONFIG_INTERWORKING
2346 if (wpa_s->conf->auto_interworking &&
2347 wpa_s->conf->interworking &&
2348 wpa_s->conf->cred) {
2349 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
2350 "start ANQP fetch since no matching "
2351 "networks found");
2352 wpa_s->network_select = 1;
2353 wpa_s->auto_network_select = 1;
2354 interworking_start_fetch_anqp(wpa_s);
2355 return 1;
2356 }
2357 #endif /* CONFIG_INTERWORKING */
2358 #ifdef CONFIG_WPS
2359 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
2360 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
2361 timeout_sec = 0;
2362 timeout_usec = 500000;
2363 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2364 timeout_usec);
2365 return 0;
2366 }
2367 #endif /* CONFIG_WPS */
2368 #ifdef CONFIG_OWE
2369 if (wpa_s->owe_transition_search) {
2370 wpa_dbg(wpa_s, MSG_DEBUG,
2371 "OWE: Use shorter wait during transition mode search");
2372 timeout_sec = 0;
2373 timeout_usec = 500000;
2374 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2375 timeout_usec);
2376 return 0;
2377 }
2378 #endif /* CONFIG_OWE */
2379 if (wpa_supplicant_req_sched_scan(wpa_s))
2380 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2381 timeout_usec);
2382
2383 wpa_msg_ctrl(wpa_s, MSG_INFO,
2384 WPA_EVENT_NETWORK_NOT_FOUND);
2385 wpas_notify_network_not_found(wpa_s);
2386 }
2387 }
2388 return 0;
2389 }
2390
2391
wpa_supplicant_event_scan_results(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2392 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
2393 union wpa_event_data *data)
2394 {
2395 struct wpa_supplicant *ifs;
2396 int res;
2397
2398 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1, 0);
2399 if (res == 2) {
2400 /*
2401 * Interface may have been removed, so must not dereference
2402 * wpa_s after this.
2403 */
2404 return 1;
2405 }
2406
2407 if (res < 0) {
2408 /*
2409 * If no scan results could be fetched, then no need to
2410 * notify those interfaces that did not actually request
2411 * this scan. Similarly, if scan results started a new operation on this
2412 * interface, do not notify other interfaces to avoid concurrent
2413 * operations during a connection attempt.
2414 */
2415 return 0;
2416 }
2417
2418 /*
2419 * Check other interfaces to see if they share the same radio. If
2420 * so, they get updated with this same scan info.
2421 */
2422 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
2423 radio_list) {
2424 if (ifs != wpa_s) {
2425 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
2426 "sibling", ifs->ifname);
2427 res = _wpa_supplicant_event_scan_results(ifs, data, 0,
2428 res > 0);
2429 if (res < 0)
2430 return 0;
2431 }
2432 }
2433
2434 return 0;
2435 }
2436
2437 #endif /* CONFIG_NO_SCAN_PROCESSING */
2438
2439
wpa_supplicant_fast_associate(struct wpa_supplicant * wpa_s)2440 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
2441 {
2442 #ifdef CONFIG_NO_SCAN_PROCESSING
2443 return -1;
2444 #else /* CONFIG_NO_SCAN_PROCESSING */
2445 struct os_reltime now;
2446
2447 wpa_s->ignore_post_flush_scan_res = 0;
2448
2449 if (wpa_s->last_scan_res_used == 0)
2450 return -1;
2451
2452 os_get_reltime(&now);
2453 if (os_reltime_expired(&now, &wpa_s->last_scan,
2454 wpa_s->conf->scan_res_valid_for_connect)) {
2455 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
2456 return -1;
2457 }
2458
2459 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
2460 #endif /* CONFIG_NO_SCAN_PROCESSING */
2461 }
2462
2463 #ifdef CONFIG_WNM
2464
wnm_bss_keep_alive(void * eloop_ctx,void * sock_ctx)2465 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
2466 {
2467 struct wpa_supplicant *wpa_s = eloop_ctx;
2468
2469 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2470 return;
2471
2472 if (!wpa_s->no_keep_alive) {
2473 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
2474 MAC2STR(wpa_s->bssid));
2475 /* TODO: could skip this if normal data traffic has been sent */
2476 /* TODO: Consider using some more appropriate data frame for
2477 * this */
2478 if (wpa_s->l2)
2479 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
2480 (u8 *) "", 0);
2481 }
2482
2483 #ifdef CONFIG_SME
2484 if (wpa_s->sme.bss_max_idle_period) {
2485 unsigned int msec;
2486 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
2487 if (msec > 100)
2488 msec -= 100;
2489 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
2490 wnm_bss_keep_alive, wpa_s, NULL);
2491 }
2492 #endif /* CONFIG_SME */
2493 }
2494
2495
wnm_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)2496 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
2497 const u8 *ies, size_t ies_len)
2498 {
2499 struct ieee802_11_elems elems;
2500
2501 if (ies == NULL)
2502 return;
2503
2504 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
2505 return;
2506
2507 #ifdef CONFIG_SME
2508 if (elems.bss_max_idle_period) {
2509 unsigned int msec;
2510 wpa_s->sme.bss_max_idle_period =
2511 WPA_GET_LE16(elems.bss_max_idle_period);
2512 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
2513 "TU)%s", wpa_s->sme.bss_max_idle_period,
2514 (elems.bss_max_idle_period[2] & 0x01) ?
2515 " (protected keep-live required)" : "");
2516 if (wpa_s->sme.bss_max_idle_period == 0)
2517 wpa_s->sme.bss_max_idle_period = 1;
2518 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
2519 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
2520 /* msec times 1000 */
2521 msec = wpa_s->sme.bss_max_idle_period * 1024;
2522 if (msec > 100)
2523 msec -= 100;
2524 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
2525 wnm_bss_keep_alive, wpa_s,
2526 NULL);
2527 }
2528 }
2529 #endif /* CONFIG_SME */
2530 }
2531
2532 #endif /* CONFIG_WNM */
2533
2534
wnm_bss_keep_alive_deinit(struct wpa_supplicant * wpa_s)2535 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
2536 {
2537 #ifdef CONFIG_WNM
2538 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
2539 #endif /* CONFIG_WNM */
2540 }
2541
2542
2543 #ifdef CONFIG_INTERWORKING
2544
wpas_qos_map_set(struct wpa_supplicant * wpa_s,const u8 * qos_map,size_t len)2545 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
2546 size_t len)
2547 {
2548 int res;
2549
2550 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
2551 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
2552 if (res) {
2553 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
2554 }
2555
2556 return res;
2557 }
2558
2559
interworking_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)2560 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
2561 const u8 *ies, size_t ies_len)
2562 {
2563 struct ieee802_11_elems elems;
2564
2565 if (ies == NULL)
2566 return;
2567
2568 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
2569 return;
2570
2571 if (elems.qos_map_set) {
2572 wpas_qos_map_set(wpa_s, elems.qos_map_set,
2573 elems.qos_map_set_len);
2574 }
2575 }
2576
2577 #endif /* CONFIG_INTERWORKING */
2578
2579
multi_ap_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)2580 static void multi_ap_process_assoc_resp(struct wpa_supplicant *wpa_s,
2581 const u8 *ies, size_t ies_len)
2582 {
2583 struct ieee802_11_elems elems;
2584 const u8 *map_sub_elem, *pos;
2585 size_t len;
2586
2587 wpa_s->multi_ap_ie = 0;
2588
2589 if (!ies ||
2590 ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed ||
2591 !elems.multi_ap || elems.multi_ap_len < 7)
2592 return;
2593
2594 pos = elems.multi_ap + 4;
2595 len = elems.multi_ap_len - 4;
2596
2597 map_sub_elem = get_ie(pos, len, MULTI_AP_SUB_ELEM_TYPE);
2598 if (!map_sub_elem || map_sub_elem[1] < 1)
2599 return;
2600
2601 wpa_s->multi_ap_backhaul = !!(map_sub_elem[2] & MULTI_AP_BACKHAUL_BSS);
2602 wpa_s->multi_ap_fronthaul = !!(map_sub_elem[2] &
2603 MULTI_AP_FRONTHAUL_BSS);
2604 wpa_s->multi_ap_ie = 1;
2605 }
2606
2607
multi_ap_set_4addr_mode(struct wpa_supplicant * wpa_s)2608 static void multi_ap_set_4addr_mode(struct wpa_supplicant *wpa_s)
2609 {
2610 if (!wpa_s->current_ssid ||
2611 !wpa_s->current_ssid->multi_ap_backhaul_sta)
2612 return;
2613
2614 if (!wpa_s->multi_ap_ie) {
2615 wpa_printf(MSG_INFO,
2616 "AP does not include valid Multi-AP element");
2617 goto fail;
2618 }
2619
2620 if (!wpa_s->multi_ap_backhaul) {
2621 if (wpa_s->multi_ap_fronthaul &&
2622 wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
2623 wpa_printf(MSG_INFO,
2624 "WPS active, accepting fronthaul-only BSS");
2625 /* Don't set 4addr mode in this case, so just return */
2626 return;
2627 }
2628 wpa_printf(MSG_INFO, "AP doesn't support backhaul BSS");
2629 goto fail;
2630 }
2631
2632 if (wpa_drv_set_4addr_mode(wpa_s, 1) < 0) {
2633 wpa_printf(MSG_ERROR, "Failed to set 4addr mode");
2634 goto fail;
2635 }
2636 wpa_s->enabled_4addr_mode = 1;
2637 return;
2638
2639 fail:
2640 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2641 }
2642
2643
2644 #ifdef CONFIG_FST
wpas_fst_update_mbie(struct wpa_supplicant * wpa_s,const u8 * ie,size_t ie_len)2645 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
2646 const u8 *ie, size_t ie_len)
2647 {
2648 struct mb_ies_info mb_ies;
2649
2650 if (!ie || !ie_len || !wpa_s->fst)
2651 return -ENOENT;
2652
2653 os_memset(&mb_ies, 0, sizeof(mb_ies));
2654
2655 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
2656 size_t len;
2657
2658 len = 2 + ie[1];
2659 if (len > ie_len) {
2660 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
2661 ie, ie_len);
2662 break;
2663 }
2664
2665 if (ie[0] == WLAN_EID_MULTI_BAND) {
2666 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
2667 (unsigned int) len);
2668 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
2669 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
2670 mb_ies.nof_ies++;
2671 }
2672
2673 ie_len -= len;
2674 ie += len;
2675 }
2676
2677 if (mb_ies.nof_ies > 0) {
2678 wpabuf_free(wpa_s->received_mb_ies);
2679 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
2680 return 0;
2681 }
2682
2683 return -ENOENT;
2684 }
2685 #endif /* CONFIG_FST */
2686
2687
wpa_supplicant_event_associnfo(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2688 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
2689 union wpa_event_data *data)
2690 {
2691 int l, len, found = 0, found_x = 0, wpa_found, rsn_found;
2692 const u8 *p;
2693 u8 bssid[ETH_ALEN];
2694 bool bssid_known;
2695
2696 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
2697 bssid_known = wpa_drv_get_bssid(wpa_s, bssid) == 0;
2698 if (data->assoc_info.req_ies)
2699 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
2700 data->assoc_info.req_ies_len);
2701 if (data->assoc_info.resp_ies) {
2702 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
2703 data->assoc_info.resp_ies_len);
2704 #ifdef CONFIG_TDLS
2705 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
2706 data->assoc_info.resp_ies_len);
2707 #endif /* CONFIG_TDLS */
2708 #ifdef CONFIG_WNM
2709 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2710 data->assoc_info.resp_ies_len);
2711 #endif /* CONFIG_WNM */
2712 #ifdef CONFIG_INTERWORKING
2713 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2714 data->assoc_info.resp_ies_len);
2715 #endif /* CONFIG_INTERWORKING */
2716 if (wpa_s->hw_capab == CAPAB_VHT &&
2717 get_ie(data->assoc_info.resp_ies,
2718 data->assoc_info.resp_ies_len, WLAN_EID_VHT_CAP))
2719 wpa_s->ieee80211ac = 1;
2720
2721 multi_ap_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2722 data->assoc_info.resp_ies_len);
2723 }
2724 if (data->assoc_info.beacon_ies)
2725 wpa_hexdump(MSG_DEBUG, "beacon_ies",
2726 data->assoc_info.beacon_ies,
2727 data->assoc_info.beacon_ies_len);
2728 if (data->assoc_info.freq)
2729 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
2730 data->assoc_info.freq);
2731
2732 wpa_s->connection_set = 0;
2733 if (data->assoc_info.req_ies && data->assoc_info.resp_ies) {
2734 struct ieee802_11_elems req_elems, resp_elems;
2735
2736 if (ieee802_11_parse_elems(data->assoc_info.req_ies,
2737 data->assoc_info.req_ies_len,
2738 &req_elems, 0) != ParseFailed &&
2739 ieee802_11_parse_elems(data->assoc_info.resp_ies,
2740 data->assoc_info.resp_ies_len,
2741 &resp_elems, 0) != ParseFailed) {
2742 wpa_s->connection_set = 1;
2743 wpa_s->connection_11b_only = supp_rates_11b_only(&req_elems) ||
2744 supp_rates_11b_only(&resp_elems);
2745 wpa_s->connection_ht = req_elems.ht_capabilities &&
2746 resp_elems.ht_capabilities;
2747 /* Do not include subset of VHT on 2.4 GHz vendor
2748 * extension in consideration for reporting VHT
2749 * association. */
2750 wpa_s->connection_vht = req_elems.vht_capabilities &&
2751 resp_elems.vht_capabilities &&
2752 (!data->assoc_info.freq ||
2753 wpas_freq_to_band(data->assoc_info.freq) !=
2754 BAND_2_4_GHZ);
2755 wpa_s->connection_he = req_elems.he_capabilities &&
2756 resp_elems.he_capabilities;
2757
2758 int max_nss_rx_req = get_max_nss_capability(&req_elems, 1);
2759 int max_nss_rx_resp = get_max_nss_capability(&resp_elems, 1);
2760 wpa_s->connection_max_nss_rx = (max_nss_rx_resp > max_nss_rx_req) ?
2761 max_nss_rx_req : max_nss_rx_resp;
2762 int max_nss_tx_req = get_max_nss_capability(&req_elems, 0);
2763 int max_nss_tx_resp = get_max_nss_capability(&resp_elems, 0);
2764 wpa_s->connection_max_nss_tx = (max_nss_tx_resp > max_nss_tx_req) ?
2765 max_nss_tx_req : max_nss_tx_resp;
2766
2767 struct supported_chan_width sta_supported_chan_width =
2768 get_supported_channel_width(&req_elems);
2769 enum chan_width ap_operation_chan_width =
2770 get_operation_channel_width(&resp_elems);
2771 if (wpa_s->connection_vht || wpa_s->connection_he) {
2772 wpa_s->connection_channel_bandwidth =
2773 get_sta_operation_chan_width(ap_operation_chan_width,
2774 sta_supported_chan_width);
2775 } else if (wpa_s->connection_ht) {
2776 wpa_s->connection_channel_bandwidth = (ap_operation_chan_width
2777 == CHAN_WIDTH_40) ? CHAN_WIDTH_40 : CHAN_WIDTH_20;
2778 } else {
2779 wpa_s->connection_channel_bandwidth = CHAN_WIDTH_20;
2780 }
2781 }
2782 }
2783
2784 p = data->assoc_info.req_ies;
2785 l = data->assoc_info.req_ies_len;
2786
2787 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
2788 while (p && l >= 2) {
2789 len = p[1] + 2;
2790 if (len > l) {
2791 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2792 p, l);
2793 break;
2794 }
2795 if (!found &&
2796 ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2797 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
2798 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
2799 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
2800 (p[0] == WLAN_EID_RSN && p[1] >= 2))) {
2801 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
2802 break;
2803 found = 1;
2804 wpa_find_assoc_pmkid(wpa_s);
2805 }
2806 if (!found_x && p[0] == WLAN_EID_RSNX) {
2807 if (wpa_sm_set_assoc_rsnxe(wpa_s->wpa, p, len))
2808 break;
2809 found_x = 1;
2810 }
2811 l -= len;
2812 p += len;
2813 }
2814 if (!found && data->assoc_info.req_ies)
2815 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2816 if (!found_x && data->assoc_info.req_ies)
2817 wpa_sm_set_assoc_rsnxe(wpa_s->wpa, NULL, 0);
2818
2819 #ifdef CONFIG_FILS
2820 #ifdef CONFIG_SME
2821 if ((wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS ||
2822 wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS_SK_PFS) &&
2823 (!data->assoc_info.resp_frame ||
2824 fils_process_assoc_resp(wpa_s->wpa,
2825 data->assoc_info.resp_frame,
2826 data->assoc_info.resp_frame_len) < 0)) {
2827 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
2828 return -1;
2829 }
2830 #endif /* CONFIG_SME */
2831
2832 /* Additional processing for FILS when SME is in driver */
2833 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS &&
2834 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2835 wpa_sm_set_reset_fils_completed(wpa_s->wpa, 1);
2836 #endif /* CONFIG_FILS */
2837
2838 #ifdef CONFIG_OWE
2839 if (wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
2840 (!bssid_known ||
2841 owe_process_assoc_resp(wpa_s->wpa, bssid,
2842 data->assoc_info.resp_ies,
2843 data->assoc_info.resp_ies_len) < 0)) {
2844 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
2845 return -1;
2846 }
2847 #endif /* CONFIG_OWE */
2848
2849 #ifdef CONFIG_DPP2
2850 wpa_sm_set_dpp_z(wpa_s->wpa, NULL);
2851 if (DPP_VERSION > 1 && wpa_s->key_mgmt == WPA_KEY_MGMT_DPP &&
2852 wpa_s->dpp_pfs) {
2853 struct ieee802_11_elems elems;
2854
2855 if (ieee802_11_parse_elems(data->assoc_info.resp_ies,
2856 data->assoc_info.resp_ies_len,
2857 &elems, 0) == ParseFailed ||
2858 !elems.owe_dh)
2859 goto no_pfs;
2860 if (dpp_pfs_process(wpa_s->dpp_pfs, elems.owe_dh,
2861 elems.owe_dh_len) < 0) {
2862 wpa_supplicant_deauthenticate(wpa_s,
2863 WLAN_REASON_UNSPECIFIED);
2864 return -1;
2865 }
2866
2867 wpa_sm_set_dpp_z(wpa_s->wpa, wpa_s->dpp_pfs->secret);
2868 }
2869 no_pfs:
2870 #endif /* CONFIG_DPP2 */
2871
2872 #ifdef CONFIG_IEEE80211R
2873 #ifdef CONFIG_SME
2874 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
2875 if (!bssid_known ||
2876 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2877 data->assoc_info.resp_ies,
2878 data->assoc_info.resp_ies_len,
2879 bssid) < 0) {
2880 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2881 "Reassociation Response failed");
2882 wpa_supplicant_deauthenticate(
2883 wpa_s, WLAN_REASON_INVALID_IE);
2884 return -1;
2885 }
2886 }
2887
2888 p = data->assoc_info.resp_ies;
2889 l = data->assoc_info.resp_ies_len;
2890
2891 #ifdef CONFIG_WPS_STRICT
2892 if (p && wpa_s->current_ssid &&
2893 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
2894 struct wpabuf *wps;
2895 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
2896 if (wps == NULL) {
2897 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
2898 "include WPS IE in (Re)Association Response");
2899 return -1;
2900 }
2901
2902 if (wps_validate_assoc_resp(wps) < 0) {
2903 wpabuf_free(wps);
2904 wpa_supplicant_deauthenticate(
2905 wpa_s, WLAN_REASON_INVALID_IE);
2906 return -1;
2907 }
2908 wpabuf_free(wps);
2909 }
2910 #endif /* CONFIG_WPS_STRICT */
2911
2912 /* Go through the IEs and make a copy of the MDIE, if present. */
2913 while (p && l >= 2) {
2914 len = p[1] + 2;
2915 if (len > l) {
2916 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2917 p, l);
2918 break;
2919 }
2920 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
2921 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
2922 wpa_s->sme.ft_used = 1;
2923 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
2924 MOBILITY_DOMAIN_ID_LEN);
2925 break;
2926 }
2927 l -= len;
2928 p += len;
2929 }
2930 #endif /* CONFIG_SME */
2931 #ifdef CONFIG_DRIVER_NL80211_BRCM
2932 if (((wpa_s->key_mgmt == WPA_KEY_MGMT_FT_PSK) ||
2933 (wpa_s->key_mgmt == WPA_KEY_MGMT_FT_IEEE8021X) ||
2934 (wpa_s->key_mgmt == WPA_KEY_MGMT_FT_SAE) ||
2935 (wpa_s->key_mgmt == WPA_KEY_MGMT_FT_IEEE8021X_SHA384)) &&
2936 wpa_ft_is_completed(wpa_s->wpa)) {
2937 return 0;
2938 }
2939 #endif /* CONFIG_DRIVER_NL80211_BRCM */
2940
2941 /* Process FT when SME is in the driver */
2942 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
2943 wpa_ft_is_completed(wpa_s->wpa)) {
2944 if (!bssid_known ||
2945 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2946 data->assoc_info.resp_ies,
2947 data->assoc_info.resp_ies_len,
2948 bssid) < 0) {
2949 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2950 "Reassociation Response failed");
2951 wpa_supplicant_deauthenticate(
2952 wpa_s, WLAN_REASON_INVALID_IE);
2953 return -1;
2954 }
2955 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
2956 }
2957
2958 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
2959 data->assoc_info.resp_ies_len);
2960 #endif /* CONFIG_IEEE80211R */
2961
2962 if (bssid_known)
2963 wpas_handle_assoc_resp_mscs(wpa_s, bssid,
2964 data->assoc_info.resp_ies,
2965 data->assoc_info.resp_ies_len);
2966
2967 /* WPA/RSN IE from Beacon/ProbeResp */
2968 p = data->assoc_info.beacon_ies;
2969 l = data->assoc_info.beacon_ies_len;
2970
2971 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
2972 */
2973 wpa_found = rsn_found = 0;
2974 while (p && l >= 2) {
2975 len = p[1] + 2;
2976 if (len > l) {
2977 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
2978 p, l);
2979 break;
2980 }
2981 if (!wpa_found &&
2982 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2983 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
2984 wpa_found = 1;
2985 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
2986 }
2987
2988 if (!rsn_found &&
2989 p[0] == WLAN_EID_RSN && p[1] >= 2) {
2990 rsn_found = 1;
2991 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
2992 }
2993
2994 if (p[0] == WLAN_EID_RSNX && p[1] >= 1)
2995 wpa_sm_set_ap_rsnxe(wpa_s->wpa, p, len);
2996
2997 l -= len;
2998 p += len;
2999 }
3000
3001 if (!wpa_found && data->assoc_info.beacon_ies)
3002 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
3003 if (!rsn_found && data->assoc_info.beacon_ies) {
3004 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
3005 wpa_sm_set_ap_rsnxe(wpa_s->wpa, NULL, 0);
3006 }
3007 if (wpa_found || rsn_found)
3008 wpa_s->ap_ies_from_associnfo = 1;
3009
3010 if (wpa_s->assoc_freq && data->assoc_info.freq &&
3011 wpa_s->assoc_freq != data->assoc_info.freq) {
3012 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
3013 "%u to %u MHz",
3014 wpa_s->assoc_freq, data->assoc_info.freq);
3015 wpa_supplicant_update_scan_results(wpa_s);
3016 }
3017
3018 wpa_s->assoc_freq = data->assoc_info.freq;
3019
3020 return 0;
3021 }
3022
3023
wpa_supplicant_assoc_update_ie(struct wpa_supplicant * wpa_s)3024 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
3025 {
3026 const u8 *bss_wpa = NULL, *bss_rsn = NULL, *bss_rsnx = NULL;
3027
3028 if (!wpa_s->current_bss || !wpa_s->current_ssid)
3029 return -1;
3030
3031 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
3032 return 0;
3033
3034 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
3035 WPA_IE_VENDOR_TYPE);
3036 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
3037 bss_rsnx = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSNX);
3038
3039 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
3040 bss_wpa ? 2 + bss_wpa[1] : 0) ||
3041 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
3042 bss_rsn ? 2 + bss_rsn[1] : 0) ||
3043 wpa_sm_set_ap_rsnxe(wpa_s->wpa, bss_rsnx,
3044 bss_rsnx ? 2 + bss_rsnx[1] : 0))
3045 return -1;
3046
3047 return 0;
3048 }
3049
3050
wpas_fst_update_mb_assoc(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3051 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
3052 union wpa_event_data *data)
3053 {
3054 #ifdef CONFIG_FST
3055 struct assoc_info *ai = data ? &data->assoc_info : NULL;
3056 struct wpa_bss *bss = wpa_s->current_bss;
3057 const u8 *ieprb, *iebcn;
3058
3059 wpabuf_free(wpa_s->received_mb_ies);
3060 wpa_s->received_mb_ies = NULL;
3061
3062 if (ai &&
3063 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
3064 wpa_printf(MSG_DEBUG,
3065 "FST: MB IEs updated from Association Response frame");
3066 return;
3067 }
3068
3069 if (ai &&
3070 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
3071 wpa_printf(MSG_DEBUG,
3072 "FST: MB IEs updated from association event Beacon IEs");
3073 return;
3074 }
3075
3076 if (!bss)
3077 return;
3078
3079 ieprb = wpa_bss_ie_ptr(bss);
3080 iebcn = ieprb + bss->ie_len;
3081
3082 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
3083 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
3084 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
3085 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
3086 #endif /* CONFIG_FST */
3087 }
3088
3089
wpa_supplicant_event_assoc(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3090 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
3091 union wpa_event_data *data)
3092 {
3093 u8 bssid[ETH_ALEN];
3094 int ft_completed, already_authorized;
3095 int new_bss = 0;
3096 #if defined(CONFIG_FILS) || defined(CONFIG_MBO)
3097 struct wpa_bss *bss;
3098 #endif /* CONFIG_FILS || CONFIG_MBO */
3099 #ifdef CONFIG_DRIVER_NL80211_BRCM
3100 struct wpa_ie_data ie;
3101 #endif /* CONFIG_DRIVER_NL80211_BRCM */
3102
3103 #ifdef CONFIG_AP
3104 if (wpa_s->ap_iface) {
3105 if (!data)
3106 return;
3107 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
3108 data->assoc_info.addr,
3109 data->assoc_info.req_ies,
3110 data->assoc_info.req_ies_len,
3111 data->assoc_info.reassoc);
3112 return;
3113 }
3114 #endif /* CONFIG_AP */
3115
3116 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
3117 wpa_s->own_reconnect_req = 0;
3118
3119 #ifdef CONFIG_DRIVER_NL80211_BRCM
3120 if (!(wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0)) {
3121 struct wpa_ft_ies parse;
3122 /* Check for FT reassociation is done by the driver */
3123 #ifdef CONFIG_IEEE80211R
3124 int use_sha384 = wpa_key_mgmt_sha384(wpa_s->wpa->key_mgmt);
3125 if (wpa_key_mgmt_ft(wpa_s->key_mgmt) && (wpa_s->key_mgmt == ie.key_mgmt)) {
3126 if (wpa_ft_parse_ies(data->assoc_info.resp_ies,
3127 data->assoc_info.resp_ies_len, &parse, use_sha384) < 0) {
3128 wpa_printf(MSG_DEBUG, "Failed to parse FT IEs");
3129 return;
3130 }
3131 if (parse.rsn_pmkid != NULL) {
3132 wpa_set_ft_completed(wpa_s->wpa);
3133 wpa_dbg(wpa_s, MSG_DEBUG, "Assume FT reassoc completed by the driver");
3134 }
3135 }
3136 #endif /* CONFIG_IEEE80211R */
3137 }
3138 #endif /* CONFIG_DRIVER_NL80211_BRCM */
3139
3140 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
3141 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
3142 return;
3143 /*
3144 * FILS authentication can share the same mechanism to mark the
3145 * connection fully authenticated, so set ft_completed also based on
3146 * FILS result.
3147 */
3148 if (!ft_completed)
3149 ft_completed = wpa_fils_is_completed(wpa_s->wpa);
3150
3151 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
3152 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
3153 wpa_supplicant_deauthenticate(
3154 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3155 return;
3156 }
3157
3158 #ifdef CONFIG_DRIVER_NL80211_BRCM
3159 /* For driver based roaming, insert PSK during the initial association */
3160 if (is_zero_ether_addr(wpa_s->bssid) &&
3161 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
3162 /* In case the driver wants to handle re-assocs, pass it down the PMK. */
3163 wpa_dbg(wpa_s, MSG_DEBUG, "Pass the PMK to the driver");
3164 wpa_sm_install_pmk(wpa_s->wpa);
3165 }
3166 #endif /* CONFIG_DRIVER_NL80211_BRCM */
3167 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
3168 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
3169 if (os_reltime_initialized(&wpa_s->session_start)) {
3170 os_reltime_age(&wpa_s->session_start,
3171 &wpa_s->session_length);
3172 wpa_s->session_start.sec = 0;
3173 wpa_s->session_start.usec = 0;
3174 wpas_notify_session_length(wpa_s);
3175 } else {
3176 wpas_notify_auth_changed(wpa_s);
3177 os_get_reltime(&wpa_s->session_start);
3178 }
3179 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
3180 MACSTR, MAC2STR(bssid));
3181 new_bss = 1;
3182 random_add_randomness(bssid, ETH_ALEN);
3183 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
3184 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
3185 wpas_notify_bssid_changed(wpa_s);
3186
3187 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
3188 wpa_clear_keys(wpa_s, bssid);
3189 }
3190 if (wpa_supplicant_select_config(wpa_s) < 0) {
3191 wpa_supplicant_deauthenticate(
3192 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3193 return;
3194 }
3195 }
3196
3197 multi_ap_set_4addr_mode(wpa_s);
3198
3199 if (wpa_s->conf->ap_scan == 1 &&
3200 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
3201 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
3202 wpa_msg(wpa_s, MSG_WARNING,
3203 "WPA/RSN IEs not updated");
3204 }
3205
3206 wpas_fst_update_mb_assoc(wpa_s, data);
3207
3208 #ifdef CONFIG_SME
3209 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
3210 wpa_s->sme.prev_bssid_set = 1;
3211 wpa_s->sme.last_unprot_disconnect.sec = 0;
3212 #endif /* CONFIG_SME */
3213
3214 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
3215 if (wpa_s->current_ssid) {
3216 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
3217 * initialized before association, but for other modes,
3218 * initialize PC/SC here, if the current configuration needs
3219 * smartcard or SIM/USIM. */
3220 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
3221 }
3222 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
3223 if (wpa_s->l2)
3224 l2_packet_notify_auth_start(wpa_s->l2);
3225
3226 already_authorized = data && data->assoc_info.authorized;
3227
3228 /*
3229 * Set portEnabled first to false in order to get EAP state machine out
3230 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
3231 * state machine may transit to AUTHENTICATING state based on obsolete
3232 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
3233 * AUTHENTICATED without ever giving chance to EAP state machine to
3234 * reset the state.
3235 */
3236 if (!ft_completed && !already_authorized) {
3237 eapol_sm_notify_portEnabled(wpa_s->eapol, false);
3238 eapol_sm_notify_portValid(wpa_s->eapol, false);
3239 }
3240 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3241 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP ||
3242 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE || ft_completed ||
3243 already_authorized || wpa_s->drv_authorized_port)
3244 eapol_sm_notify_eap_success(wpa_s->eapol, false);
3245 /* 802.1X::portControl = Auto */
3246 eapol_sm_notify_portEnabled(wpa_s->eapol, true);
3247 wpa_s->eapol_received = 0;
3248 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
3249 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
3250 (wpa_s->current_ssid &&
3251 wpa_s->current_ssid->mode == WPAS_MODE_IBSS)) {
3252 if (wpa_s->current_ssid &&
3253 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
3254 (wpa_s->drv_flags &
3255 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
3256 /*
3257 * Set the key after having received joined-IBSS event
3258 * from the driver.
3259 */
3260 wpa_supplicant_set_wpa_none_key(wpa_s,
3261 wpa_s->current_ssid);
3262 }
3263 wpa_supplicant_cancel_auth_timeout(wpa_s);
3264 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3265 } else if (!ft_completed) {
3266 /* Timeout for receiving the first EAPOL packet */
3267 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
3268 }
3269 wpa_supplicant_cancel_scan(wpa_s);
3270
3271 if (ft_completed) {
3272 /*
3273 * FT protocol completed - make sure EAPOL state machine ends
3274 * up in authenticated.
3275 */
3276 wpa_supplicant_cancel_auth_timeout(wpa_s);
3277 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3278 eapol_sm_notify_portValid(wpa_s->eapol, true);
3279 eapol_sm_notify_eap_success(wpa_s->eapol, true);
3280 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK) &&
3281 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
3282 /*
3283 * We are done; the driver will take care of RSN 4-way
3284 * handshake.
3285 */
3286 wpa_supplicant_cancel_auth_timeout(wpa_s);
3287 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3288 eapol_sm_notify_portValid(wpa_s->eapol, true);
3289 eapol_sm_notify_eap_success(wpa_s->eapol, true);
3290 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X) &&
3291 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
3292 /*
3293 * The driver will take care of RSN 4-way handshake, so we need
3294 * to allow EAPOL supplicant to complete its work without
3295 * waiting for WPA supplicant.
3296 */
3297 eapol_sm_notify_portValid(wpa_s->eapol, true);
3298 }
3299 #ifdef CONFIG_DRIVER_NL80211_BRCM
3300 if (ft_completed && wpa_key_mgmt_ft(wpa_s->key_mgmt)) {
3301 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
3302 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID, key_mgmt: 0x%0x",
3303 wpa_s->key_mgmt);
3304 wpa_supplicant_deauthenticate(
3305 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3306 return;
3307 }
3308 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
3309 wpa_s->assoc_freq = data->assoc_info.freq;
3310 wpa_sm_notify_brcm_ft_reassoc(wpa_s->wpa, bssid);
3311 }
3312 #endif /* CONFIG_DRIVER_NL80211_BRCM */
3313 wpa_s->last_eapol_matches_bssid = 0;
3314
3315 #ifdef CONFIG_TESTING_OPTIONS
3316 if (wpa_s->rsne_override_eapol) {
3317 wpa_printf(MSG_DEBUG,
3318 "TESTING: RSNE EAPOL-Key msg 2/4 override");
3319 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa,
3320 wpabuf_head(wpa_s->rsne_override_eapol),
3321 wpabuf_len(wpa_s->rsne_override_eapol));
3322 }
3323 if (wpa_s->rsnxe_override_eapol) {
3324 wpa_printf(MSG_DEBUG,
3325 "TESTING: RSNXE EAPOL-Key msg 2/4 override");
3326 wpa_sm_set_assoc_rsnxe(wpa_s->wpa,
3327 wpabuf_head(wpa_s->rsnxe_override_eapol),
3328 wpabuf_len(wpa_s->rsnxe_override_eapol));
3329 }
3330 #endif /* CONFIG_TESTING_OPTIONS */
3331
3332 if (wpa_s->pending_eapol_rx) {
3333 struct os_reltime now, age;
3334 os_get_reltime(&now);
3335 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
3336 if (age.sec == 0 && age.usec < 200000 &&
3337 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
3338 0) {
3339 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
3340 "frame that was received just before "
3341 "association notification");
3342 wpa_supplicant_rx_eapol(
3343 wpa_s, wpa_s->pending_eapol_rx_src,
3344 wpabuf_head(wpa_s->pending_eapol_rx),
3345 wpabuf_len(wpa_s->pending_eapol_rx));
3346 }
3347 wpabuf_free(wpa_s->pending_eapol_rx);
3348 wpa_s->pending_eapol_rx = NULL;
3349 }
3350
3351 #ifdef CONFIG_WEP
3352 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
3353 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
3354 wpa_s->current_ssid &&
3355 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
3356 /* Set static WEP keys again */
3357 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
3358 }
3359 #endif /* CONFIG_WEP */
3360
3361 #ifdef CONFIG_IBSS_RSN
3362 if (wpa_s->current_ssid &&
3363 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3364 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
3365 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
3366 wpa_s->ibss_rsn == NULL) {
3367 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s, wpa_s->current_ssid);
3368 if (!wpa_s->ibss_rsn) {
3369 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
3370 wpa_supplicant_deauthenticate(
3371 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3372 return;
3373 }
3374
3375 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
3376 }
3377 #endif /* CONFIG_IBSS_RSN */
3378
3379 wpas_wps_notify_assoc(wpa_s, bssid);
3380
3381 if (data) {
3382 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
3383 data->assoc_info.resp_ies_len,
3384 &data->assoc_info.wmm_params);
3385
3386 if (wpa_s->reassoc_same_bss)
3387 wmm_ac_restore_tspecs(wpa_s);
3388 }
3389
3390 #if defined(CONFIG_FILS) || defined(CONFIG_MBO)
3391 bss = wpa_bss_get_bssid(wpa_s, bssid);
3392 #endif /* CONFIG_FILS || CONFIG_MBO */
3393 #ifdef CONFIG_FILS
3394 if (wpa_key_mgmt_fils(wpa_s->key_mgmt)) {
3395 const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
3396
3397 if (fils_cache_id)
3398 wpa_sm_set_fils_cache_id(wpa_s->wpa, fils_cache_id);
3399 }
3400 #endif /* CONFIG_FILS */
3401
3402 #ifdef CONFIG_MBO
3403 wpas_mbo_check_pmf(wpa_s, bss, wpa_s->current_ssid);
3404 #endif /* CONFIG_MBO */
3405
3406 #ifdef CONFIG_DPP2
3407 wpa_s->dpp_pfs_fallback = 0;
3408 #endif /* CONFIG_DPP2 */
3409 }
3410
3411
disconnect_reason_recoverable(u16 reason_code)3412 static int disconnect_reason_recoverable(u16 reason_code)
3413 {
3414 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
3415 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
3416 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
3417 }
3418
3419
wpa_supplicant_event_disassoc(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)3420 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
3421 u16 reason_code,
3422 int locally_generated)
3423 {
3424 const u8 *bssid;
3425
3426 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
3427 /*
3428 * At least Host AP driver and a Prism3 card seemed to be
3429 * generating streams of disconnected events when configuring
3430 * IBSS for WPA-None. Ignore them for now.
3431 */
3432 return;
3433 }
3434
3435 bssid = wpa_s->bssid;
3436 if (is_zero_ether_addr(bssid))
3437 bssid = wpa_s->pending_bssid;
3438
3439 if (!is_zero_ether_addr(bssid) ||
3440 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3441 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
3442 " reason=%d%s",
3443 MAC2STR(bssid), reason_code,
3444 locally_generated ? " locally_generated=1" : "");
3445 }
3446 }
3447
3448
could_be_psk_mismatch(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)3449 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
3450 int locally_generated)
3451 {
3452 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
3453 !wpa_s->new_connection ||
3454 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3455 wpa_key_mgmt_sae(wpa_s->key_mgmt))
3456 return 0; /* Not in initial 4-way handshake with PSK */
3457
3458 /*
3459 * It looks like connection was lost while trying to go through PSK
3460 * 4-way handshake. Filter out known disconnection cases that are caused
3461 * by something else than PSK mismatch to avoid confusing reports.
3462 */
3463
3464 if (locally_generated) {
3465 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
3466 return 0;
3467 }
3468
3469 return 1;
3470 }
3471
3472
wpa_supplicant_event_disassoc_finish(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)3473 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
3474 u16 reason_code,
3475 int locally_generated)
3476 {
3477 const u8 *bssid;
3478 int authenticating;
3479 u8 prev_pending_bssid[ETH_ALEN];
3480 struct wpa_bss *fast_reconnect = NULL;
3481 struct wpa_ssid *fast_reconnect_ssid = NULL;
3482 struct wpa_ssid *last_ssid;
3483 struct wpa_bss *curr = NULL;
3484
3485 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
3486 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
3487
3488 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
3489 /*
3490 * At least Host AP driver and a Prism3 card seemed to be
3491 * generating streams of disconnected events when configuring
3492 * IBSS for WPA-None. Ignore them for now.
3493 */
3494 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
3495 "IBSS/WPA-None mode");
3496 return;
3497 }
3498
3499 if (!wpa_s->disconnected && wpa_s->wpa_state >= WPA_AUTHENTICATING &&
3500 reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY &&
3501 locally_generated)
3502 /*
3503 * Remove the inactive AP (which is probably out of range) from
3504 * the BSS list after marking disassociation. In particular
3505 * mac80211-based drivers use the
3506 * WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in
3507 * locally generated disconnection events for cases where the
3508 * AP does not reply anymore.
3509 */
3510 curr = wpa_s->current_bss;
3511
3512 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
3513 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
3514 "pre-shared key may be incorrect");
3515 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
3516 return; /* P2P group removed */
3517 wpas_auth_failed(wpa_s, "WRONG_KEY");
3518 #ifdef CONFIG_DPP2
3519 wpas_dpp_send_conn_status_result(wpa_s,
3520 DPP_STATUS_AUTH_FAILURE);
3521 #endif /* CONFIG_DPP2 */
3522 }
3523 if (!wpa_s->disconnected &&
3524 (!wpa_s->auto_reconnect_disabled ||
3525 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
3526 wpas_wps_searching(wpa_s) ||
3527 wpas_wps_reenable_networks_pending(wpa_s))) {
3528 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
3529 "reconnect (wps=%d/%d wpa_state=%d)",
3530 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
3531 wpas_wps_searching(wpa_s),
3532 wpa_s->wpa_state);
3533 if (wpa_s->wpa_state == WPA_COMPLETED &&
3534 wpa_s->current_ssid &&
3535 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
3536 (wpa_s->own_reconnect_req ||
3537 (!locally_generated &&
3538 disconnect_reason_recoverable(reason_code)))) {
3539 /*
3540 * It looks like the AP has dropped association with
3541 * us, but could allow us to get back in. This is also
3542 * triggered for cases where local reconnection request
3543 * is used to force reassociation with the same BSS.
3544 * Try to reconnect to the same BSS without a full scan
3545 * to save time for some common cases.
3546 */
3547 fast_reconnect = wpa_s->current_bss;
3548 fast_reconnect_ssid = wpa_s->current_ssid;
3549 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) {
3550 wpa_supplicant_req_scan(wpa_s, 0, 100000);
3551 } else {
3552 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
3553 "immediate scan");
3554 }
3555 } else {
3556 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
3557 "try to re-connect");
3558 wpa_s->reassociate = 0;
3559 wpa_s->disconnected = 1;
3560 if (!wpa_s->pno)
3561 wpa_supplicant_cancel_sched_scan(wpa_s);
3562 }
3563 bssid = wpa_s->bssid;
3564 if (is_zero_ether_addr(bssid))
3565 bssid = wpa_s->pending_bssid;
3566 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
3567 wpas_connection_failed(wpa_s, bssid);
3568 wpa_sm_notify_disassoc(wpa_s->wpa);
3569 ptksa_cache_flush(wpa_s->ptksa, wpa_s->bssid, WPA_CIPHER_NONE);
3570
3571 if (locally_generated)
3572 wpa_s->disconnect_reason = -reason_code;
3573 else
3574 wpa_s->disconnect_reason = reason_code;
3575 wpas_notify_disconnect_reason(wpa_s);
3576 if (wpa_supplicant_dynamic_keys(wpa_s)) {
3577 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
3578 wpa_clear_keys(wpa_s, wpa_s->bssid);
3579 }
3580 last_ssid = wpa_s->current_ssid;
3581 wpa_supplicant_mark_disassoc(wpa_s);
3582
3583 if (curr)
3584 wpa_bss_remove(wpa_s, curr, "Connection to AP lost");
3585
3586 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
3587 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
3588 wpa_s->current_ssid = last_ssid;
3589 }
3590
3591 if (fast_reconnect &&
3592 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
3593 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
3594 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
3595 fast_reconnect->ssid_len) &&
3596 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
3597 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect)) {
3598 #ifndef CONFIG_NO_SCAN_PROCESSING
3599 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
3600 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
3601 fast_reconnect_ssid) < 0) {
3602 /* Recover through full scan */
3603 wpa_supplicant_req_scan(wpa_s, 0, 100000);
3604 }
3605 #endif /* CONFIG_NO_SCAN_PROCESSING */
3606 } else if (fast_reconnect) {
3607 /*
3608 * Could not reconnect to the same BSS due to network being
3609 * disabled. Use a new scan to match the alternative behavior
3610 * above, i.e., to continue automatic reconnection attempt in a
3611 * way that enforces disabled network rules.
3612 */
3613 wpa_supplicant_req_scan(wpa_s, 0, 100000);
3614 }
3615 }
3616
3617
3618 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
wpa_supplicant_delayed_mic_error_report(void * eloop_ctx,void * sock_ctx)3619 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
3620 {
3621 struct wpa_supplicant *wpa_s = eloop_ctx;
3622
3623 if (!wpa_s->pending_mic_error_report)
3624 return;
3625
3626 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
3627 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
3628 wpa_s->pending_mic_error_report = 0;
3629 }
3630 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3631
3632
3633 static void
wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3634 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
3635 union wpa_event_data *data)
3636 {
3637 int pairwise;
3638 struct os_reltime t;
3639
3640 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
3641 pairwise = (data && data->michael_mic_failure.unicast);
3642 os_get_reltime(&t);
3643 if ((wpa_s->last_michael_mic_error.sec &&
3644 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
3645 wpa_s->pending_mic_error_report) {
3646 if (wpa_s->pending_mic_error_report) {
3647 /*
3648 * Send the pending MIC error report immediately since
3649 * we are going to start countermeasures and AP better
3650 * do the same.
3651 */
3652 wpa_sm_key_request(wpa_s->wpa, 1,
3653 wpa_s->pending_mic_error_pairwise);
3654 }
3655
3656 /* Send the new MIC error report immediately since we are going
3657 * to start countermeasures and AP better do the same.
3658 */
3659 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3660
3661 /* initialize countermeasures */
3662 wpa_s->countermeasures = 1;
3663
3664 wpa_bssid_ignore_add(wpa_s, wpa_s->bssid);
3665
3666 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
3667
3668 /*
3669 * Need to wait for completion of request frame. We do not get
3670 * any callback for the message completion, so just wait a
3671 * short while and hope for the best. */
3672 os_sleep(0, 10000);
3673
3674 wpa_drv_set_countermeasures(wpa_s, 1);
3675 wpa_supplicant_deauthenticate(wpa_s,
3676 WLAN_REASON_MICHAEL_MIC_FAILURE);
3677 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
3678 wpa_s, NULL);
3679 eloop_register_timeout(60, 0,
3680 wpa_supplicant_stop_countermeasures,
3681 wpa_s, NULL);
3682 /* TODO: mark the AP rejected for 60 second. STA is
3683 * allowed to associate with another AP.. */
3684 } else {
3685 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
3686 if (wpa_s->mic_errors_seen) {
3687 /*
3688 * Reduce the effectiveness of Michael MIC error
3689 * reports as a means for attacking against TKIP if
3690 * more than one MIC failure is noticed with the same
3691 * PTK. We delay the transmission of the reports by a
3692 * random time between 0 and 60 seconds in order to
3693 * force the attacker wait 60 seconds before getting
3694 * the information on whether a frame resulted in a MIC
3695 * failure.
3696 */
3697 u8 rval[4];
3698 int sec;
3699
3700 if (os_get_random(rval, sizeof(rval)) < 0)
3701 sec = os_random() % 60;
3702 else
3703 sec = WPA_GET_BE32(rval) % 60;
3704 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
3705 "report %d seconds", sec);
3706 wpa_s->pending_mic_error_report = 1;
3707 wpa_s->pending_mic_error_pairwise = pairwise;
3708 eloop_cancel_timeout(
3709 wpa_supplicant_delayed_mic_error_report,
3710 wpa_s, NULL);
3711 eloop_register_timeout(
3712 sec, os_random() % 1000000,
3713 wpa_supplicant_delayed_mic_error_report,
3714 wpa_s, NULL);
3715 } else {
3716 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3717 }
3718 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3719 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3720 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3721 }
3722 wpa_s->last_michael_mic_error = t;
3723 wpa_s->mic_errors_seen++;
3724 }
3725
3726
3727 #ifdef CONFIG_TERMINATE_ONLASTIF
any_interfaces(struct wpa_supplicant * head)3728 static int any_interfaces(struct wpa_supplicant *head)
3729 {
3730 struct wpa_supplicant *wpa_s;
3731
3732 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
3733 if (!wpa_s->interface_removed)
3734 return 1;
3735 return 0;
3736 }
3737 #endif /* CONFIG_TERMINATE_ONLASTIF */
3738
3739
3740 static void
wpa_supplicant_event_interface_status(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3741 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
3742 union wpa_event_data *data)
3743 {
3744 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
3745 return;
3746
3747 switch (data->interface_status.ievent) {
3748 case EVENT_INTERFACE_ADDED:
3749 if (!wpa_s->interface_removed)
3750 break;
3751 wpa_s->interface_removed = 0;
3752 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
3753 if (wpa_supplicant_driver_init(wpa_s) < 0) {
3754 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
3755 "driver after interface was added");
3756 }
3757
3758 #ifdef CONFIG_P2P
3759 if (!wpa_s->global->p2p &&
3760 !wpa_s->global->p2p_disabled &&
3761 !wpa_s->conf->p2p_disabled &&
3762 (wpa_s->drv_flags &
3763 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
3764 wpas_p2p_add_p2pdev_interface(
3765 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
3766 wpa_printf(MSG_INFO,
3767 "P2P: Failed to enable P2P Device interface");
3768 /* Try to continue without. P2P will be disabled. */
3769 }
3770 #endif /* CONFIG_P2P */
3771
3772 break;
3773 case EVENT_INTERFACE_REMOVED:
3774 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
3775 wpa_s->interface_removed = 1;
3776 wpa_supplicant_mark_disassoc(wpa_s);
3777 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3778 l2_packet_deinit(wpa_s->l2);
3779 wpa_s->l2 = NULL;
3780
3781 #ifdef CONFIG_P2P
3782 if (wpa_s->global->p2p &&
3783 wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
3784 (wpa_s->drv_flags &
3785 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
3786 wpa_dbg(wpa_s, MSG_DEBUG,
3787 "Removing P2P Device interface");
3788 wpa_supplicant_remove_iface(
3789 wpa_s->global, wpa_s->global->p2p_init_wpa_s,
3790 0);
3791 wpa_s->global->p2p_init_wpa_s = NULL;
3792 }
3793 #endif /* CONFIG_P2P */
3794
3795 #ifdef CONFIG_MATCH_IFACE
3796 if (wpa_s->matched) {
3797 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
3798 break;
3799 }
3800 #endif /* CONFIG_MATCH_IFACE */
3801
3802 #ifdef CONFIG_TERMINATE_ONLASTIF
3803 /* check if last interface */
3804 if (!any_interfaces(wpa_s->global->ifaces))
3805 eloop_terminate();
3806 #endif /* CONFIG_TERMINATE_ONLASTIF */
3807 break;
3808 }
3809 }
3810
3811
3812 #ifdef CONFIG_TDLS
wpa_supplicant_event_tdls(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3813 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
3814 union wpa_event_data *data)
3815 {
3816 if (data == NULL)
3817 return;
3818 switch (data->tdls.oper) {
3819 case TDLS_REQUEST_SETUP:
3820 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
3821 if (wpa_tdls_is_external_setup(wpa_s->wpa))
3822 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
3823 else
3824 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
3825 break;
3826 case TDLS_REQUEST_TEARDOWN:
3827 if (wpa_tdls_is_external_setup(wpa_s->wpa))
3828 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
3829 data->tdls.reason_code);
3830 else
3831 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
3832 data->tdls.peer);
3833 break;
3834 case TDLS_REQUEST_DISCOVER:
3835 wpa_tdls_send_discovery_request(wpa_s->wpa,
3836 data->tdls.peer);
3837 break;
3838 }
3839 }
3840 #endif /* CONFIG_TDLS */
3841
3842
3843 #ifdef CONFIG_WNM
wpa_supplicant_event_wnm(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3844 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
3845 union wpa_event_data *data)
3846 {
3847 if (data == NULL)
3848 return;
3849 switch (data->wnm.oper) {
3850 case WNM_OPER_SLEEP:
3851 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
3852 "(action=%d, intval=%d)",
3853 data->wnm.sleep_action, data->wnm.sleep_intval);
3854 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
3855 data->wnm.sleep_intval, NULL);
3856 break;
3857 }
3858 }
3859 #endif /* CONFIG_WNM */
3860
3861
3862 #ifdef CONFIG_IEEE80211R
3863 static void
wpa_supplicant_event_ft_response(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3864 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
3865 union wpa_event_data *data)
3866 {
3867 if (data == NULL)
3868 return;
3869
3870 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
3871 data->ft_ies.ies_len,
3872 data->ft_ies.ft_action,
3873 data->ft_ies.target_ap,
3874 data->ft_ies.ric_ies,
3875 data->ft_ies.ric_ies_len) < 0) {
3876 /* TODO: prevent MLME/driver from trying to associate? */
3877 }
3878 }
3879 #endif /* CONFIG_IEEE80211R */
3880
3881
3882 #ifdef CONFIG_IBSS_RSN
wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3883 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
3884 union wpa_event_data *data)
3885 {
3886 struct wpa_ssid *ssid;
3887 if (wpa_s->wpa_state < WPA_ASSOCIATED)
3888 return;
3889 if (data == NULL)
3890 return;
3891 ssid = wpa_s->current_ssid;
3892 if (ssid == NULL)
3893 return;
3894 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
3895 return;
3896
3897 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
3898 }
3899
3900
wpa_supplicant_event_ibss_auth(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3901 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
3902 union wpa_event_data *data)
3903 {
3904 struct wpa_ssid *ssid = wpa_s->current_ssid;
3905
3906 if (ssid == NULL)
3907 return;
3908
3909 /* check if the ssid is correctly configured as IBSS/RSN */
3910 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
3911 return;
3912
3913 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
3914 data->rx_mgmt.frame_len);
3915 }
3916 #endif /* CONFIG_IBSS_RSN */
3917
3918
3919 #ifdef CONFIG_IEEE80211R
ft_rx_action(struct wpa_supplicant * wpa_s,const u8 * data,size_t len)3920 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
3921 size_t len)
3922 {
3923 const u8 *sta_addr, *target_ap_addr;
3924 u16 status;
3925
3926 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
3927 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
3928 return; /* only SME case supported for now */
3929 if (len < 1 + 2 * ETH_ALEN + 2)
3930 return;
3931 if (data[0] != 2)
3932 return; /* Only FT Action Response is supported for now */
3933 sta_addr = data + 1;
3934 target_ap_addr = data + 1 + ETH_ALEN;
3935 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
3936 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
3937 MACSTR " TargetAP " MACSTR " status %u",
3938 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
3939
3940 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
3941 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
3942 " in FT Action Response", MAC2STR(sta_addr));
3943 return;
3944 }
3945
3946 if (status) {
3947 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
3948 "failure (status code %d)", status);
3949 /* TODO: report error to FT code(?) */
3950 return;
3951 }
3952
3953 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
3954 len - (1 + 2 * ETH_ALEN + 2), 1,
3955 target_ap_addr, NULL, 0) < 0)
3956 return;
3957
3958 #ifdef CONFIG_SME
3959 {
3960 struct wpa_bss *bss;
3961 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
3962 if (bss)
3963 wpa_s->sme.freq = bss->freq;
3964 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
3965 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
3966 WLAN_AUTH_FT);
3967 }
3968 #endif /* CONFIG_SME */
3969 }
3970 #endif /* CONFIG_IEEE80211R */
3971
3972
wpa_supplicant_event_unprot_deauth(struct wpa_supplicant * wpa_s,struct unprot_deauth * e)3973 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
3974 struct unprot_deauth *e)
3975 {
3976 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
3977 "dropped: " MACSTR " -> " MACSTR
3978 " (reason code %u)",
3979 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
3980 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
3981 }
3982
3983
wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant * wpa_s,struct unprot_disassoc * e)3984 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
3985 struct unprot_disassoc *e)
3986 {
3987 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
3988 "dropped: " MACSTR " -> " MACSTR
3989 " (reason code %u)",
3990 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
3991 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
3992 }
3993
3994
wpas_event_disconnect(struct wpa_supplicant * wpa_s,const u8 * addr,u16 reason_code,int locally_generated,const u8 * ie,size_t ie_len,int deauth)3995 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
3996 u16 reason_code, int locally_generated,
3997 const u8 *ie, size_t ie_len, int deauth)
3998 {
3999 #ifdef CONFIG_AP
4000 if (wpa_s->ap_iface && addr) {
4001 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
4002 return;
4003 }
4004
4005 if (wpa_s->ap_iface) {
4006 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
4007 return;
4008 }
4009 #endif /* CONFIG_AP */
4010
4011 if (!locally_generated)
4012 wpa_s->own_disconnect_req = 0;
4013
4014 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
4015
4016 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
4017 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
4018 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
4019 eapol_sm_failed(wpa_s->eapol))) &&
4020 !wpa_s->eap_expected_failure))
4021 wpas_auth_failed(wpa_s, "AUTH_FAILED");
4022
4023 #ifdef CONFIG_P2P
4024 if (deauth && reason_code > 0) {
4025 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
4026 locally_generated) > 0) {
4027 /*
4028 * The interface was removed, so cannot continue
4029 * processing any additional operations after this.
4030 */
4031 return;
4032 }
4033 }
4034 #endif /* CONFIG_P2P */
4035
4036 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
4037 locally_generated);
4038 }
4039
4040
wpas_event_disassoc(struct wpa_supplicant * wpa_s,struct disassoc_info * info)4041 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
4042 struct disassoc_info *info)
4043 {
4044 u16 reason_code = 0;
4045 int locally_generated = 0;
4046 const u8 *addr = NULL;
4047 const u8 *ie = NULL;
4048 size_t ie_len = 0;
4049
4050 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
4051
4052 if (info) {
4053 addr = info->addr;
4054 ie = info->ie;
4055 ie_len = info->ie_len;
4056 reason_code = info->reason_code;
4057 locally_generated = info->locally_generated;
4058 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s", reason_code,
4059 reason2str(reason_code),
4060 locally_generated ? " locally_generated=1" : "");
4061 if (addr)
4062 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
4063 MAC2STR(addr));
4064 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
4065 ie, ie_len);
4066 }
4067
4068 #ifdef CONFIG_AP
4069 if (wpa_s->ap_iface && info && info->addr) {
4070 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
4071 return;
4072 }
4073
4074 if (wpa_s->ap_iface) {
4075 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
4076 return;
4077 }
4078 #endif /* CONFIG_AP */
4079
4080 #ifdef CONFIG_P2P
4081 if (info) {
4082 wpas_p2p_disassoc_notif(
4083 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
4084 locally_generated);
4085 }
4086 #endif /* CONFIG_P2P */
4087
4088 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
4089 sme_event_disassoc(wpa_s, info);
4090
4091 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
4092 ie, ie_len, 0);
4093 }
4094
4095
wpas_event_deauth(struct wpa_supplicant * wpa_s,struct deauth_info * info)4096 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
4097 struct deauth_info *info)
4098 {
4099 u16 reason_code = 0;
4100 int locally_generated = 0;
4101 const u8 *addr = NULL;
4102 const u8 *ie = NULL;
4103 size_t ie_len = 0;
4104
4105 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
4106
4107 if (info) {
4108 addr = info->addr;
4109 ie = info->ie;
4110 ie_len = info->ie_len;
4111 reason_code = info->reason_code;
4112 locally_generated = info->locally_generated;
4113 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s",
4114 reason_code, reason2str(reason_code),
4115 locally_generated ? " locally_generated=1" : "");
4116 if (addr) {
4117 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
4118 MAC2STR(addr));
4119 }
4120 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
4121 ie, ie_len);
4122 }
4123
4124 wpa_reset_ft_completed(wpa_s->wpa);
4125
4126 wpas_event_disconnect(wpa_s, addr, reason_code,
4127 locally_generated, ie, ie_len, 1);
4128 }
4129
4130
reg_init_str(enum reg_change_initiator init)4131 static const char * reg_init_str(enum reg_change_initiator init)
4132 {
4133 switch (init) {
4134 case REGDOM_SET_BY_CORE:
4135 return "CORE";
4136 case REGDOM_SET_BY_USER:
4137 return "USER";
4138 case REGDOM_SET_BY_DRIVER:
4139 return "DRIVER";
4140 case REGDOM_SET_BY_COUNTRY_IE:
4141 return "COUNTRY_IE";
4142 case REGDOM_BEACON_HINT:
4143 return "BEACON_HINT";
4144 }
4145 return "?";
4146 }
4147
4148
reg_type_str(enum reg_type type)4149 static const char * reg_type_str(enum reg_type type)
4150 {
4151 switch (type) {
4152 case REGDOM_TYPE_UNKNOWN:
4153 return "UNKNOWN";
4154 case REGDOM_TYPE_COUNTRY:
4155 return "COUNTRY";
4156 case REGDOM_TYPE_WORLD:
4157 return "WORLD";
4158 case REGDOM_TYPE_CUSTOM_WORLD:
4159 return "CUSTOM_WORLD";
4160 case REGDOM_TYPE_INTERSECTION:
4161 return "INTERSECTION";
4162 }
4163 return "?";
4164 }
4165
4166
wpa_supplicant_update_channel_list(struct wpa_supplicant * wpa_s,struct channel_list_changed * info)4167 void wpa_supplicant_update_channel_list(struct wpa_supplicant *wpa_s,
4168 struct channel_list_changed *info)
4169 {
4170 struct wpa_supplicant *ifs;
4171 u8 dfs_domain;
4172
4173 /*
4174 * To allow backwards compatibility with higher level layers that
4175 * assumed the REGDOM_CHANGE event is sent over the initially added
4176 * interface. Find the highest parent of this interface and use it to
4177 * send the event.
4178 */
4179 for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
4180 ;
4181
4182 if (info) {
4183 wpa_msg(ifs, MSG_INFO,
4184 WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
4185 reg_init_str(info->initiator), reg_type_str(info->type),
4186 info->alpha2[0] ? " alpha2=" : "",
4187 info->alpha2[0] ? info->alpha2 : "");
4188 }
4189
4190 if (wpa_s->drv_priv == NULL)
4191 return; /* Ignore event during drv initialization */
4192
4193 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
4194 radio_list) {
4195 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
4196 ifs->ifname);
4197 free_hw_features(ifs);
4198 ifs->hw.modes = wpa_drv_get_hw_feature_data(
4199 ifs, &ifs->hw.num_modes, &ifs->hw.flags, &dfs_domain);
4200
4201 /* Restart PNO/sched_scan with updated channel list */
4202 if (ifs->pno) {
4203 wpas_stop_pno(ifs);
4204 wpas_start_pno(ifs);
4205 } else if (ifs->sched_scanning && !ifs->pno_sched_pending) {
4206 wpa_dbg(ifs, MSG_DEBUG,
4207 "Channel list changed - restart sched_scan");
4208 wpas_scan_restart_sched_scan(ifs);
4209 }
4210 }
4211
4212 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
4213 }
4214
4215
wpas_event_rx_mgmt_action(struct wpa_supplicant * wpa_s,const u8 * frame,size_t len,int freq,int rssi)4216 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
4217 const u8 *frame, size_t len, int freq,
4218 int rssi)
4219 {
4220 const struct ieee80211_mgmt *mgmt;
4221 const u8 *payload;
4222 size_t plen;
4223 u8 category;
4224
4225 if (len < IEEE80211_HDRLEN + 2)
4226 return;
4227
4228 mgmt = (const struct ieee80211_mgmt *) frame;
4229 payload = frame + IEEE80211_HDRLEN;
4230 category = *payload++;
4231 plen = len - IEEE80211_HDRLEN - 1;
4232
4233 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
4234 " Category=%u DataLen=%d freq=%d MHz",
4235 MAC2STR(mgmt->sa), category, (int) plen, freq);
4236
4237 if (category == WLAN_ACTION_WMM) {
4238 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
4239 return;
4240 }
4241
4242 #ifdef CONFIG_IEEE80211R
4243 if (category == WLAN_ACTION_FT) {
4244 ft_rx_action(wpa_s, payload, plen);
4245 return;
4246 }
4247 #endif /* CONFIG_IEEE80211R */
4248
4249 #ifdef CONFIG_SME
4250 if (category == WLAN_ACTION_SA_QUERY) {
4251 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
4252 return;
4253 }
4254 #endif /* CONFIG_SME */
4255
4256 #ifdef CONFIG_WNM
4257 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
4258 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
4259 return;
4260 }
4261 #endif /* CONFIG_WNM */
4262
4263 #ifdef CONFIG_GAS
4264 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
4265 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
4266 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
4267 mgmt->u.action.category,
4268 payload, plen, freq) == 0)
4269 return;
4270 #endif /* CONFIG_GAS */
4271
4272 #ifdef CONFIG_GAS_SERVER
4273 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
4274 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
4275 gas_server_rx(wpa_s->gas_server, mgmt->da, mgmt->sa, mgmt->bssid,
4276 mgmt->u.action.category,
4277 payload, plen, freq) == 0)
4278 return;
4279 #endif /* CONFIG_GAS_SERVER */
4280
4281 #ifdef CONFIG_TDLS
4282 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
4283 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
4284 wpa_dbg(wpa_s, MSG_DEBUG,
4285 "TDLS: Received Discovery Response from " MACSTR,
4286 MAC2STR(mgmt->sa));
4287 return;
4288 }
4289 #endif /* CONFIG_TDLS */
4290
4291 #ifdef CONFIG_INTERWORKING
4292 if (category == WLAN_ACTION_QOS && plen >= 1 &&
4293 payload[0] == QOS_QOS_MAP_CONFIG) {
4294 const u8 *pos = payload + 1;
4295 size_t qlen = plen - 1;
4296 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
4297 MACSTR, MAC2STR(mgmt->sa));
4298 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
4299 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
4300 pos[1] <= qlen - 2 && pos[1] >= 16)
4301 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
4302 return;
4303 }
4304 #endif /* CONFIG_INTERWORKING */
4305
4306 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4307 payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
4308 wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
4309 mgmt->da,
4310 payload + 1,
4311 plen - 1);
4312 return;
4313 }
4314
4315 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4316 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
4317 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
4318 return;
4319 }
4320
4321 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4322 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
4323 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
4324 payload + 1, plen - 1,
4325 rssi);
4326 return;
4327 }
4328
4329 #ifdef CONFIG_FST
4330 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
4331 fst_rx_action(wpa_s->fst, mgmt, len);
4332 return;
4333 }
4334 #endif /* CONFIG_FST */
4335
4336 #ifdef CONFIG_DPP
4337 if (category == WLAN_ACTION_PUBLIC && plen >= 5 &&
4338 payload[0] == WLAN_PA_VENDOR_SPECIFIC &&
4339 WPA_GET_BE24(&payload[1]) == OUI_WFA &&
4340 payload[4] == DPP_OUI_TYPE) {
4341 payload++;
4342 plen--;
4343 wpas_dpp_rx_action(wpa_s, mgmt->sa, payload, plen, freq);
4344 return;
4345 }
4346 #endif /* CONFIG_DPP */
4347
4348 if (category == WLAN_ACTION_ROBUST_AV_STREAMING &&
4349 payload[0] == ROBUST_AV_MSCS_RESP) {
4350 wpas_handle_robust_av_recv_action(wpa_s, mgmt->sa,
4351 payload + 1, plen - 1);
4352 return;
4353 }
4354
4355 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
4356 category, payload, plen, freq);
4357 if (wpa_s->ifmsh)
4358 mesh_mpm_action_rx(wpa_s, mgmt, len);
4359 }
4360
4361
wpa_supplicant_notify_avoid_freq(struct wpa_supplicant * wpa_s,union wpa_event_data * event)4362 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
4363 union wpa_event_data *event)
4364 {
4365 struct wpa_freq_range_list *list;
4366 char *str = NULL;
4367
4368 list = &event->freq_range;
4369
4370 if (list->num)
4371 str = freq_range_list_str(list);
4372 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
4373 str ? str : "");
4374
4375 #ifdef CONFIG_P2P
4376 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
4377 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
4378 __func__);
4379 } else {
4380 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
4381
4382 /*
4383 * The update channel flow will also take care of moving a GO
4384 * from the unsafe frequency if needed.
4385 */
4386 wpas_p2p_update_channel_list(wpa_s,
4387 WPAS_P2P_CHANNEL_UPDATE_AVOID);
4388 }
4389 #endif /* CONFIG_P2P */
4390
4391 os_free(str);
4392 }
4393
4394
wpa_supplicant_event_port_authorized(struct wpa_supplicant * wpa_s)4395 static void wpa_supplicant_event_port_authorized(struct wpa_supplicant *wpa_s)
4396 {
4397 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
4398 wpa_supplicant_cancel_auth_timeout(wpa_s);
4399 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
4400 eapol_sm_notify_portValid(wpa_s->eapol, true);
4401 eapol_sm_notify_eap_success(wpa_s->eapol, true);
4402 wpa_s->drv_authorized_port = 1;
4403 }
4404 }
4405
4406
wpas_event_cac_ms(const struct wpa_supplicant * wpa_s,int freq)4407 static unsigned int wpas_event_cac_ms(const struct wpa_supplicant *wpa_s,
4408 int freq)
4409 {
4410 size_t i;
4411 int j;
4412
4413 for (i = 0; i < wpa_s->hw.num_modes; i++) {
4414 const struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i];
4415
4416 for (j = 0; j < mode->num_channels; j++) {
4417 const struct hostapd_channel_data *chan;
4418
4419 chan = &mode->channels[j];
4420 if (chan->freq == freq)
4421 return chan->dfs_cac_ms;
4422 }
4423 }
4424
4425 return 0;
4426 }
4427
4428
wpas_event_dfs_cac_started(struct wpa_supplicant * wpa_s,struct dfs_event * radar)4429 static void wpas_event_dfs_cac_started(struct wpa_supplicant *wpa_s,
4430 struct dfs_event *radar)
4431 {
4432 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4433 if (wpa_s->ap_iface || wpa_s->ifmsh) {
4434 wpas_ap_event_dfs_cac_started(wpa_s, radar);
4435 } else
4436 #endif /* NEED_AP_MLME && CONFIG_AP */
4437 {
4438 unsigned int cac_time = wpas_event_cac_ms(wpa_s, radar->freq);
4439
4440 cac_time /= 1000; /* convert from ms to sec */
4441 if (!cac_time)
4442 cac_time = 10 * 60; /* max timeout: 10 minutes */
4443
4444 /* Restart auth timeout: CAC time added to initial timeout */
4445 wpas_auth_timeout_restart(wpa_s, cac_time);
4446 }
4447 }
4448
4449
wpas_event_dfs_cac_finished(struct wpa_supplicant * wpa_s,struct dfs_event * radar)4450 static void wpas_event_dfs_cac_finished(struct wpa_supplicant *wpa_s,
4451 struct dfs_event *radar)
4452 {
4453 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4454 if (wpa_s->ap_iface || wpa_s->ifmsh) {
4455 wpas_ap_event_dfs_cac_finished(wpa_s, radar);
4456 } else
4457 #endif /* NEED_AP_MLME && CONFIG_AP */
4458 {
4459 /* Restart auth timeout with original value after CAC is
4460 * finished */
4461 wpas_auth_timeout_restart(wpa_s, 0);
4462 }
4463 }
4464
4465
wpas_event_dfs_cac_aborted(struct wpa_supplicant * wpa_s,struct dfs_event * radar)4466 static void wpas_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s,
4467 struct dfs_event *radar)
4468 {
4469 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4470 if (wpa_s->ap_iface || wpa_s->ifmsh) {
4471 wpas_ap_event_dfs_cac_aborted(wpa_s, radar);
4472 } else
4473 #endif /* NEED_AP_MLME && CONFIG_AP */
4474 {
4475 /* Restart auth timeout with original value after CAC is
4476 * aborted */
4477 wpas_auth_timeout_restart(wpa_s, 0);
4478 }
4479 }
4480
4481
wpa_supplicant_event_assoc_auth(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4482 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
4483 union wpa_event_data *data)
4484 {
4485 wpa_dbg(wpa_s, MSG_DEBUG,
4486 "Connection authorized by device, previous state %d",
4487 wpa_s->wpa_state);
4488
4489 wpa_supplicant_event_port_authorized(wpa_s);
4490
4491 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
4492 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
4493 data->assoc_info.ptk_kck_len,
4494 data->assoc_info.ptk_kek,
4495 data->assoc_info.ptk_kek_len);
4496 #ifdef CONFIG_FILS
4497 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
4498 struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
4499 const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
4500
4501 /* Update ERP next sequence number */
4502 eapol_sm_update_erp_next_seq_num(
4503 wpa_s->eapol, data->assoc_info.fils_erp_next_seq_num);
4504
4505 if (data->assoc_info.fils_pmk && data->assoc_info.fils_pmkid) {
4506 /* Add the new PMK and PMKID to the PMKSA cache */
4507 wpa_sm_pmksa_cache_add(wpa_s->wpa,
4508 data->assoc_info.fils_pmk,
4509 data->assoc_info.fils_pmk_len,
4510 data->assoc_info.fils_pmkid,
4511 wpa_s->bssid, fils_cache_id);
4512 } else if (data->assoc_info.fils_pmkid) {
4513 /* Update the current PMKSA used for this connection */
4514 pmksa_cache_set_current(wpa_s->wpa,
4515 data->assoc_info.fils_pmkid,
4516 NULL, NULL, 0, NULL, 0);
4517 }
4518 }
4519 #endif /* CONFIG_FILS */
4520 }
4521
4522
connect_fail_reason(enum sta_connect_fail_reason_codes code)4523 static const char * connect_fail_reason(enum sta_connect_fail_reason_codes code)
4524 {
4525 switch (code) {
4526 case STA_CONNECT_FAIL_REASON_UNSPECIFIED:
4527 return "";
4528 case STA_CONNECT_FAIL_REASON_NO_BSS_FOUND:
4529 return "no_bss_found";
4530 case STA_CONNECT_FAIL_REASON_AUTH_TX_FAIL:
4531 return "auth_tx_fail";
4532 case STA_CONNECT_FAIL_REASON_AUTH_NO_ACK_RECEIVED:
4533 return "auth_no_ack_received";
4534 case STA_CONNECT_FAIL_REASON_AUTH_NO_RESP_RECEIVED:
4535 return "auth_no_resp_received";
4536 case STA_CONNECT_FAIL_REASON_ASSOC_REQ_TX_FAIL:
4537 return "assoc_req_tx_fail";
4538 case STA_CONNECT_FAIL_REASON_ASSOC_NO_ACK_RECEIVED:
4539 return "assoc_no_ack_received";
4540 case STA_CONNECT_FAIL_REASON_ASSOC_NO_RESP_RECEIVED:
4541 return "assoc_no_resp_received";
4542 default:
4543 return "unknown_reason";
4544 }
4545 }
4546
4547
wpas_event_assoc_reject(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4548 static void wpas_event_assoc_reject(struct wpa_supplicant *wpa_s,
4549 union wpa_event_data *data)
4550 {
4551 const u8 *bssid = data->assoc_reject.bssid;
4552 #ifdef CONFIG_MBO
4553 struct wpa_bss *reject_bss;
4554 #endif /* CONFIG_MBO */
4555
4556 if (!bssid || is_zero_ether_addr(bssid))
4557 bssid = wpa_s->pending_bssid;
4558 #ifdef CONFIG_MBO
4559 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
4560 reject_bss = wpa_s->current_bss;
4561 else
4562 reject_bss = wpa_bss_get_bssid(wpa_s, bssid);
4563 #endif /* CONFIG_MBO */
4564
4565 if (data->assoc_reject.bssid)
4566 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
4567 "bssid=" MACSTR " status_code=%u%s%s%s%s%s",
4568 MAC2STR(data->assoc_reject.bssid),
4569 data->assoc_reject.status_code,
4570 data->assoc_reject.timed_out ? " timeout" : "",
4571 data->assoc_reject.timeout_reason ? "=" : "",
4572 data->assoc_reject.timeout_reason ?
4573 data->assoc_reject.timeout_reason : "",
4574 data->assoc_reject.reason_code !=
4575 STA_CONNECT_FAIL_REASON_UNSPECIFIED ?
4576 " qca_driver_reason=" : "",
4577 connect_fail_reason(data->assoc_reject.reason_code));
4578 else
4579 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
4580 "status_code=%u%s%s%s%s%s",
4581 data->assoc_reject.status_code,
4582 data->assoc_reject.timed_out ? " timeout" : "",
4583 data->assoc_reject.timeout_reason ? "=" : "",
4584 data->assoc_reject.timeout_reason ?
4585 data->assoc_reject.timeout_reason : "",
4586 data->assoc_reject.reason_code !=
4587 STA_CONNECT_FAIL_REASON_UNSPECIFIED ?
4588 " qca_driver_reason=" : "",
4589 connect_fail_reason(data->assoc_reject.reason_code));
4590 wpa_s->assoc_status_code = data->assoc_reject.status_code;
4591 wpas_notify_assoc_status_code(wpa_s, bssid, data->assoc_reject.timed_out,
4592 data->assoc_reject.resp_ies, data->assoc_reject.resp_ies_len);
4593
4594 #ifdef CONFIG_OWE
4595 if (data->assoc_reject.status_code ==
4596 WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED &&
4597 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
4598 wpa_s->current_ssid &&
4599 wpa_s->current_ssid->owe_group == 0 &&
4600 wpa_s->last_owe_group != 21) {
4601 struct wpa_ssid *ssid = wpa_s->current_ssid;
4602 struct wpa_bss *bss = wpa_s->current_bss;
4603
4604 if (!bss) {
4605 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
4606 if (!bss) {
4607 wpas_connection_failed(wpa_s, bssid);
4608 wpa_supplicant_mark_disassoc(wpa_s);
4609 return;
4610 }
4611 }
4612 wpa_printf(MSG_DEBUG, "OWE: Try next supported DH group");
4613 wpas_connect_work_done(wpa_s);
4614 wpa_supplicant_mark_disassoc(wpa_s);
4615 wpa_supplicant_connect(wpa_s, bss, ssid);
4616 return;
4617 }
4618 #endif /* CONFIG_OWE */
4619
4620 #ifdef CONFIG_DPP2
4621 /* Try to follow AP's PFS policy. WLAN_STATUS_ASSOC_DENIED_UNSPEC is
4622 * the status code defined in the DPP R2 tech spec.
4623 * WLAN_STATUS_AKMP_NOT_VALID is addressed in the same manner as an
4624 * interoperability workaround with older hostapd implementation. */
4625 if (DPP_VERSION > 1 && wpa_s->current_ssid &&
4626 (wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP ||
4627 ((wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
4628 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP)) &&
4629 wpa_s->current_ssid->dpp_pfs == 0 &&
4630 (data->assoc_reject.status_code ==
4631 WLAN_STATUS_ASSOC_DENIED_UNSPEC ||
4632 data->assoc_reject.status_code == WLAN_STATUS_AKMP_NOT_VALID)) {
4633 struct wpa_ssid *ssid = wpa_s->current_ssid;
4634 struct wpa_bss *bss = wpa_s->current_bss;
4635
4636 wpa_s->current_ssid->dpp_pfs_fallback ^= 1;
4637 if (!bss)
4638 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
4639 if (!bss || wpa_s->dpp_pfs_fallback) {
4640 wpa_printf(MSG_DEBUG,
4641 "DPP: Updated PFS policy for next try");
4642 wpas_connection_failed(wpa_s, bssid);
4643 wpa_supplicant_mark_disassoc(wpa_s);
4644 return;
4645 }
4646 wpa_printf(MSG_DEBUG, "DPP: Try again with updated PFS policy");
4647 wpa_s->dpp_pfs_fallback = 1;
4648 wpas_connect_work_done(wpa_s);
4649 wpa_supplicant_mark_disassoc(wpa_s);
4650 wpa_supplicant_connect(wpa_s, bss, ssid);
4651 return;
4652 }
4653 #endif /* CONFIG_DPP2 */
4654
4655 #ifdef CONFIG_MBO
4656 if (data->assoc_reject.status_code ==
4657 WLAN_STATUS_DENIED_POOR_CHANNEL_CONDITIONS &&
4658 reject_bss && data->assoc_reject.resp_ies) {
4659 const u8 *rssi_rej;
4660
4661 rssi_rej = mbo_get_attr_from_ies(
4662 data->assoc_reject.resp_ies,
4663 data->assoc_reject.resp_ies_len,
4664 OCE_ATTR_ID_RSSI_BASED_ASSOC_REJECT);
4665 if (rssi_rej && rssi_rej[1] == 2) {
4666 wpa_printf(MSG_DEBUG,
4667 "OCE: RSSI-based association rejection from "
4668 MACSTR " (Delta RSSI: %u, Retry Delay: %u)",
4669 MAC2STR(reject_bss->bssid),
4670 rssi_rej[2], rssi_rej[3]);
4671 wpa_bss_tmp_disallow(wpa_s,
4672 reject_bss->bssid,
4673 rssi_rej[3],
4674 rssi_rej[2] + reject_bss->level);
4675 }
4676 }
4677 #endif /* CONFIG_MBO */
4678
4679 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
4680 sme_event_assoc_reject(wpa_s, data);
4681 return;
4682 }
4683
4684 /* Driver-based SME cases */
4685
4686 #ifdef CONFIG_SAE
4687 if (wpa_s->current_ssid &&
4688 wpa_key_mgmt_sae(wpa_s->current_ssid->key_mgmt) &&
4689 !data->assoc_reject.timed_out) {
4690 wpa_dbg(wpa_s, MSG_DEBUG, "SAE: Drop PMKSA cache entry");
4691 wpa_sm_aborted_cached(wpa_s->wpa);
4692 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
4693 }
4694 #endif /* CONFIG_SAE */
4695
4696 #ifdef CONFIG_DPP
4697 if (wpa_s->current_ssid &&
4698 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP &&
4699 !data->assoc_reject.timed_out) {
4700 wpa_dbg(wpa_s, MSG_DEBUG, "DPP: Drop PMKSA cache entry");
4701 wpa_sm_aborted_cached(wpa_s->wpa);
4702 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
4703 }
4704 #endif /* CONFIG_DPP */
4705
4706 #ifdef CONFIG_FILS
4707 /* Update ERP next sequence number */
4708 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
4709 eapol_sm_update_erp_next_seq_num(
4710 wpa_s->eapol,
4711 data->assoc_reject.fils_erp_next_seq_num);
4712 fils_connection_failure(wpa_s);
4713 }
4714 #endif /* CONFIG_FILS */
4715
4716 wpas_connection_failed(wpa_s, bssid);
4717 wpa_supplicant_mark_disassoc(wpa_s);
4718 }
4719
4720
wpas_event_unprot_beacon(struct wpa_supplicant * wpa_s,struct unprot_beacon * data)4721 static void wpas_event_unprot_beacon(struct wpa_supplicant *wpa_s,
4722 struct unprot_beacon *data)
4723 {
4724 struct wpabuf *buf;
4725 int res;
4726
4727 if (!data || wpa_s->wpa_state != WPA_COMPLETED ||
4728 os_memcmp(data->sa, wpa_s->bssid, ETH_ALEN) != 0)
4729 return;
4730 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_UNPROT_BEACON MACSTR,
4731 MAC2STR(data->sa));
4732
4733 buf = wpabuf_alloc(4);
4734 if (!buf)
4735 return;
4736
4737 wpabuf_put_u8(buf, WLAN_ACTION_WNM);
4738 wpabuf_put_u8(buf, WNM_NOTIFICATION_REQ);
4739 wpabuf_put_u8(buf, 1); /* Dialog Token */
4740 wpabuf_put_u8(buf, WNM_NOTIF_TYPE_BEACON_PROTECTION_FAILURE);
4741
4742 res = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
4743 wpa_s->own_addr, wpa_s->bssid,
4744 wpabuf_head(buf), wpabuf_len(buf), 0);
4745 if (res < 0)
4746 wpa_printf(MSG_DEBUG,
4747 "Failed to send WNM-Notification Request frame");
4748
4749 wpabuf_free(buf);
4750 }
4751
4752
wpa_supplicant_event(void * ctx,enum wpa_event_type event,union wpa_event_data * data)4753 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
4754 union wpa_event_data *data)
4755 {
4756 struct wpa_supplicant *wpa_s = ctx;
4757 int resched;
4758 struct os_reltime age, clear_at;
4759 #ifndef CONFIG_NO_STDOUT_DEBUG
4760 int level = MSG_DEBUG;
4761 #endif /* CONFIG_NO_STDOUT_DEBUG */
4762
4763 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
4764 event != EVENT_INTERFACE_ENABLED &&
4765 event != EVENT_INTERFACE_STATUS &&
4766 event != EVENT_SCAN_RESULTS &&
4767 event != EVENT_SCHED_SCAN_STOPPED) {
4768 wpa_dbg(wpa_s, MSG_DEBUG,
4769 "Ignore event %s (%d) while interface is disabled",
4770 event_to_string(event), event);
4771 return;
4772 }
4773
4774 #ifndef CONFIG_NO_STDOUT_DEBUG
4775 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
4776 const struct ieee80211_hdr *hdr;
4777 u16 fc;
4778 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
4779 fc = le_to_host16(hdr->frame_control);
4780 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
4781 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
4782 level = MSG_EXCESSIVE;
4783 }
4784
4785 wpa_dbg(wpa_s, level, "Event %s (%d) received",
4786 event_to_string(event), event);
4787 #endif /* CONFIG_NO_STDOUT_DEBUG */
4788
4789 switch (event) {
4790 case EVENT_AUTH:
4791 #ifdef CONFIG_FST
4792 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
4793 data->auth.ies_len))
4794 wpa_printf(MSG_DEBUG,
4795 "FST: MB IEs updated from auth IE");
4796 #endif /* CONFIG_FST */
4797 sme_event_auth(wpa_s, data);
4798 wpa_s->auth_status_code = data->auth.status_code;
4799 wpas_notify_auth_status_code(wpa_s);
4800 break;
4801 case EVENT_ASSOC:
4802 #ifdef CONFIG_TESTING_OPTIONS
4803 if (wpa_s->ignore_auth_resp) {
4804 wpa_printf(MSG_INFO,
4805 "EVENT_ASSOC - ignore_auth_resp active!");
4806 break;
4807 }
4808 if (wpa_s->testing_resend_assoc) {
4809 wpa_printf(MSG_INFO,
4810 "EVENT_DEAUTH - testing_resend_assoc");
4811 break;
4812 }
4813 #endif /* CONFIG_TESTING_OPTIONS */
4814 if (wpa_s->disconnected) {
4815 wpa_printf(MSG_INFO,
4816 "Ignore unexpected EVENT_ASSOC in disconnected state");
4817 break;
4818 }
4819 wpa_supplicant_event_assoc(wpa_s, data);
4820 wpa_s->assoc_status_code = WLAN_STATUS_SUCCESS;
4821 if (data &&
4822 (data->assoc_info.authorized ||
4823 (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
4824 wpa_fils_is_completed(wpa_s->wpa))))
4825 wpa_supplicant_event_assoc_auth(wpa_s, data);
4826 if (data) {
4827 wpa_msg(wpa_s, MSG_INFO,
4828 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
4829 data->assoc_info.subnet_status);
4830 }
4831 break;
4832 case EVENT_DISASSOC:
4833 wpas_event_disassoc(wpa_s,
4834 data ? &data->disassoc_info : NULL);
4835 break;
4836 case EVENT_DEAUTH:
4837 #ifdef CONFIG_TESTING_OPTIONS
4838 if (wpa_s->ignore_auth_resp) {
4839 wpa_printf(MSG_INFO,
4840 "EVENT_DEAUTH - ignore_auth_resp active!");
4841 break;
4842 }
4843 if (wpa_s->testing_resend_assoc) {
4844 wpa_printf(MSG_INFO,
4845 "EVENT_DEAUTH - testing_resend_assoc");
4846 break;
4847 }
4848 #endif /* CONFIG_TESTING_OPTIONS */
4849 wpas_event_deauth(wpa_s,
4850 data ? &data->deauth_info : NULL);
4851 break;
4852 case EVENT_MICHAEL_MIC_FAILURE:
4853 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
4854 break;
4855 #ifndef CONFIG_NO_SCAN_PROCESSING
4856 case EVENT_SCAN_STARTED:
4857 if (wpa_s->own_scan_requested ||
4858 (data && !data->scan_info.external_scan)) {
4859 struct os_reltime diff;
4860
4861 os_get_reltime(&wpa_s->scan_start_time);
4862 os_reltime_sub(&wpa_s->scan_start_time,
4863 &wpa_s->scan_trigger_time, &diff);
4864 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
4865 diff.sec, diff.usec);
4866 wpa_s->own_scan_requested = 0;
4867 wpa_s->own_scan_running = 1;
4868 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
4869 wpa_s->manual_scan_use_id) {
4870 wpa_msg_ctrl(wpa_s, MSG_INFO,
4871 WPA_EVENT_SCAN_STARTED "id=%u",
4872 wpa_s->manual_scan_id);
4873 } else {
4874 wpa_msg_ctrl(wpa_s, MSG_INFO,
4875 WPA_EVENT_SCAN_STARTED);
4876 }
4877 } else {
4878 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
4879 wpa_s->radio->external_scan_req_interface = wpa_s;
4880 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
4881 }
4882 break;
4883 case EVENT_SCAN_RESULTS:
4884 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
4885 wpa_s->scan_res_handler = NULL;
4886 wpa_s->own_scan_running = 0;
4887 wpa_s->radio->external_scan_req_interface = NULL;
4888 wpa_s->last_scan_req = NORMAL_SCAN_REQ;
4889 break;
4890 }
4891
4892 if (!(data && data->scan_info.external_scan) &&
4893 os_reltime_initialized(&wpa_s->scan_start_time)) {
4894 struct os_reltime now, diff;
4895 os_get_reltime(&now);
4896 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
4897 wpa_s->scan_start_time.sec = 0;
4898 wpa_s->scan_start_time.usec = 0;
4899 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
4900 diff.sec, diff.usec);
4901 }
4902 if (wpa_supplicant_event_scan_results(wpa_s, data))
4903 break; /* interface may have been removed */
4904 if (!(data && data->scan_info.external_scan))
4905 wpa_s->own_scan_running = 0;
4906 if (data && data->scan_info.nl_scan_event)
4907 wpa_s->radio->external_scan_req_interface = NULL;
4908 radio_work_check_next(wpa_s);
4909 break;
4910 #endif /* CONFIG_NO_SCAN_PROCESSING */
4911 case EVENT_ASSOCINFO:
4912 wpa_supplicant_event_associnfo(wpa_s, data);
4913 break;
4914 case EVENT_INTERFACE_STATUS:
4915 wpa_supplicant_event_interface_status(wpa_s, data);
4916 break;
4917 case EVENT_PMKID_CANDIDATE:
4918 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
4919 break;
4920 #ifdef CONFIG_TDLS
4921 case EVENT_TDLS:
4922 wpa_supplicant_event_tdls(wpa_s, data);
4923 break;
4924 #endif /* CONFIG_TDLS */
4925 #ifdef CONFIG_WNM
4926 case EVENT_WNM:
4927 wpa_supplicant_event_wnm(wpa_s, data);
4928 break;
4929 #endif /* CONFIG_WNM */
4930 #ifdef CONFIG_IEEE80211R
4931 case EVENT_FT_RESPONSE:
4932 wpa_supplicant_event_ft_response(wpa_s, data);
4933 break;
4934 #endif /* CONFIG_IEEE80211R */
4935 #ifdef CONFIG_IBSS_RSN
4936 case EVENT_IBSS_RSN_START:
4937 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
4938 break;
4939 #endif /* CONFIG_IBSS_RSN */
4940 case EVENT_ASSOC_REJECT:
4941 wpas_event_assoc_reject(wpa_s, data);
4942 break;
4943 case EVENT_AUTH_TIMED_OUT:
4944 /* It is possible to get this event from earlier connection */
4945 if (wpa_s->current_ssid &&
4946 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
4947 wpa_dbg(wpa_s, MSG_DEBUG,
4948 "Ignore AUTH_TIMED_OUT in mesh configuration");
4949 break;
4950 }
4951 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
4952 sme_event_auth_timed_out(wpa_s, data);
4953 break;
4954 case EVENT_ASSOC_TIMED_OUT:
4955 /* It is possible to get this event from earlier connection */
4956 if (wpa_s->current_ssid &&
4957 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
4958 wpa_dbg(wpa_s, MSG_DEBUG,
4959 "Ignore ASSOC_TIMED_OUT in mesh configuration");
4960 break;
4961 }
4962 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
4963 sme_event_assoc_timed_out(wpa_s, data);
4964 break;
4965 case EVENT_TX_STATUS:
4966 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
4967 " type=%d stype=%d",
4968 MAC2STR(data->tx_status.dst),
4969 data->tx_status.type, data->tx_status.stype);
4970 #ifdef CONFIG_PASN
4971 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
4972 data->tx_status.stype == WLAN_FC_STYPE_AUTH &&
4973 wpas_pasn_auth_tx_status(wpa_s, data->tx_status.data,
4974 data->tx_status.data_len,
4975 data->tx_status.ack) == 0)
4976 break;
4977 #endif /* CONFIG_PASN */
4978 #ifdef CONFIG_AP
4979 if (wpa_s->ap_iface == NULL) {
4980 #ifdef CONFIG_OFFCHANNEL
4981 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
4982 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
4983 offchannel_send_action_tx_status(
4984 wpa_s, data->tx_status.dst,
4985 data->tx_status.data,
4986 data->tx_status.data_len,
4987 data->tx_status.ack ?
4988 OFFCHANNEL_SEND_ACTION_SUCCESS :
4989 OFFCHANNEL_SEND_ACTION_NO_ACK);
4990 #endif /* CONFIG_OFFCHANNEL */
4991 break;
4992 }
4993 #endif /* CONFIG_AP */
4994 #ifdef CONFIG_OFFCHANNEL
4995 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
4996 MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
4997 /*
4998 * Catch TX status events for Action frames we sent via group
4999 * interface in GO mode, or via standalone AP interface.
5000 * Note, wpa_s->p2pdev will be the same as wpa_s->parent,
5001 * except when the primary interface is used as a GO interface
5002 * (for drivers which do not have group interface concurrency)
5003 */
5004 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
5005 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
5006 os_memcmp(wpa_s->p2pdev->pending_action_dst,
5007 data->tx_status.dst, ETH_ALEN) == 0) {
5008 offchannel_send_action_tx_status(
5009 wpa_s->p2pdev, data->tx_status.dst,
5010 data->tx_status.data,
5011 data->tx_status.data_len,
5012 data->tx_status.ack ?
5013 OFFCHANNEL_SEND_ACTION_SUCCESS :
5014 OFFCHANNEL_SEND_ACTION_NO_ACK);
5015 break;
5016 }
5017 #endif /* CONFIG_OFFCHANNEL */
5018 #ifdef CONFIG_AP
5019 switch (data->tx_status.type) {
5020 case WLAN_FC_TYPE_MGMT:
5021 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
5022 data->tx_status.data_len,
5023 data->tx_status.stype,
5024 data->tx_status.ack);
5025 break;
5026 case WLAN_FC_TYPE_DATA:
5027 ap_tx_status(wpa_s, data->tx_status.dst,
5028 data->tx_status.data,
5029 data->tx_status.data_len,
5030 data->tx_status.ack);
5031 break;
5032 }
5033 #endif /* CONFIG_AP */
5034 break;
5035 #ifdef CONFIG_AP
5036 case EVENT_EAPOL_TX_STATUS:
5037 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
5038 data->eapol_tx_status.data,
5039 data->eapol_tx_status.data_len,
5040 data->eapol_tx_status.ack);
5041 break;
5042 case EVENT_DRIVER_CLIENT_POLL_OK:
5043 ap_client_poll_ok(wpa_s, data->client_poll.addr);
5044 break;
5045 case EVENT_RX_FROM_UNKNOWN:
5046 if (wpa_s->ap_iface == NULL)
5047 break;
5048 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
5049 data->rx_from_unknown.wds);
5050 break;
5051 #endif /* CONFIG_AP */
5052
5053 case EVENT_CH_SWITCH_STARTED:
5054 case EVENT_CH_SWITCH:
5055 if (!data || !wpa_s->current_ssid)
5056 break;
5057
5058 wpa_msg(wpa_s, MSG_INFO,
5059 "%sfreq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
5060 event == EVENT_CH_SWITCH ? WPA_EVENT_CHANNEL_SWITCH :
5061 WPA_EVENT_CHANNEL_SWITCH_STARTED,
5062 data->ch_switch.freq,
5063 data->ch_switch.ht_enabled,
5064 data->ch_switch.ch_offset,
5065 channel_width_to_string(data->ch_switch.ch_width),
5066 data->ch_switch.cf1,
5067 data->ch_switch.cf2);
5068 if (event == EVENT_CH_SWITCH_STARTED)
5069 break;
5070
5071 wpa_s->assoc_freq = data->ch_switch.freq;
5072 wpa_s->current_ssid->frequency = data->ch_switch.freq;
5073 if (wpa_s->current_bss &&
5074 wpa_s->current_bss->freq != data->ch_switch.freq) {
5075 wpa_s->current_bss->freq = data->ch_switch.freq;
5076 notify_bss_changes(wpa_s, WPA_BSS_FREQ_CHANGED_FLAG,
5077 wpa_s->current_bss);
5078 }
5079
5080 #ifdef CONFIG_SME
5081 switch (data->ch_switch.ch_offset) {
5082 case 1:
5083 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_ABOVE;
5084 break;
5085 case -1:
5086 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_BELOW;
5087 break;
5088 default:
5089 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_UNKNOWN;
5090 break;
5091 }
5092 #endif /* CONFIG_SME */
5093
5094 #ifdef CONFIG_AP
5095 if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
5096 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
5097 wpa_s->current_ssid->mode == WPAS_MODE_MESH ||
5098 wpa_s->current_ssid->mode ==
5099 WPAS_MODE_P2P_GROUP_FORMATION) {
5100 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
5101 data->ch_switch.ht_enabled,
5102 data->ch_switch.ch_offset,
5103 data->ch_switch.ch_width,
5104 data->ch_switch.cf1,
5105 data->ch_switch.cf2,
5106 1);
5107 }
5108 #endif /* CONFIG_AP */
5109
5110 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
5111 sme_event_ch_switch(wpa_s);
5112
5113 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
5114 wnm_clear_coloc_intf_reporting(wpa_s);
5115 break;
5116 #ifdef CONFIG_AP
5117 #ifdef NEED_AP_MLME
5118 case EVENT_DFS_RADAR_DETECTED:
5119 if (data)
5120 wpas_ap_event_dfs_radar_detected(wpa_s,
5121 &data->dfs_event);
5122 break;
5123 case EVENT_DFS_NOP_FINISHED:
5124 if (data)
5125 wpas_ap_event_dfs_cac_nop_finished(wpa_s,
5126 &data->dfs_event);
5127 break;
5128 #endif /* NEED_AP_MLME */
5129 #endif /* CONFIG_AP */
5130 case EVENT_DFS_CAC_STARTED:
5131 if (data)
5132 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
5133 break;
5134 case EVENT_DFS_CAC_FINISHED:
5135 if (data)
5136 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
5137 break;
5138 case EVENT_DFS_CAC_ABORTED:
5139 if (data)
5140 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
5141 break;
5142 case EVENT_RX_MGMT: {
5143 u16 fc, stype;
5144 const struct ieee80211_mgmt *mgmt;
5145
5146 #ifdef CONFIG_TESTING_OPTIONS
5147 if (wpa_s->ext_mgmt_frame_handling) {
5148 struct rx_mgmt *rx = &data->rx_mgmt;
5149 size_t hex_len = 2 * rx->frame_len + 1;
5150 char *hex = os_malloc(hex_len);
5151 if (hex) {
5152 wpa_snprintf_hex(hex, hex_len,
5153 rx->frame, rx->frame_len);
5154 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
5155 rx->freq, rx->datarate, rx->ssi_signal,
5156 hex);
5157 os_free(hex);
5158 }
5159 break;
5160 }
5161 #endif /* CONFIG_TESTING_OPTIONS */
5162
5163 mgmt = (const struct ieee80211_mgmt *)
5164 data->rx_mgmt.frame;
5165 fc = le_to_host16(mgmt->frame_control);
5166 stype = WLAN_FC_GET_STYPE(fc);
5167
5168 #ifdef CONFIG_AP
5169 if (wpa_s->ap_iface == NULL) {
5170 #endif /* CONFIG_AP */
5171 #ifdef CONFIG_P2P
5172 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
5173 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
5174 const u8 *src = mgmt->sa;
5175 const u8 *ie;
5176 size_t ie_len;
5177
5178 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
5179 ie_len = data->rx_mgmt.frame_len -
5180 IEEE80211_HDRLEN;
5181 wpas_p2p_probe_req_rx(
5182 wpa_s, src, mgmt->da,
5183 mgmt->bssid, ie, ie_len,
5184 data->rx_mgmt.freq,
5185 data->rx_mgmt.ssi_signal);
5186 break;
5187 }
5188 #endif /* CONFIG_P2P */
5189 #ifdef CONFIG_IBSS_RSN
5190 if (wpa_s->current_ssid &&
5191 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
5192 stype == WLAN_FC_STYPE_AUTH &&
5193 data->rx_mgmt.frame_len >= 30) {
5194 wpa_supplicant_event_ibss_auth(wpa_s, data);
5195 break;
5196 }
5197 #endif /* CONFIG_IBSS_RSN */
5198
5199 if (stype == WLAN_FC_STYPE_ACTION) {
5200 wpas_event_rx_mgmt_action(
5201 wpa_s, data->rx_mgmt.frame,
5202 data->rx_mgmt.frame_len,
5203 data->rx_mgmt.freq,
5204 data->rx_mgmt.ssi_signal);
5205 break;
5206 }
5207
5208 if (wpa_s->ifmsh) {
5209 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
5210 break;
5211 }
5212 #ifdef CONFIG_PASN
5213 if (stype == WLAN_FC_STYPE_AUTH &&
5214 wpas_pasn_auth_rx(wpa_s, mgmt,
5215 data->rx_mgmt.frame_len) != -2)
5216 break;
5217 #endif /* CONFIG_PASN */
5218
5219 #ifdef CONFIG_SAE
5220 if (stype == WLAN_FC_STYPE_AUTH &&
5221 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
5222 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE)) {
5223 sme_external_auth_mgmt_rx(
5224 wpa_s, data->rx_mgmt.frame,
5225 data->rx_mgmt.frame_len);
5226 break;
5227 }
5228 #endif /* CONFIG_SAE */
5229 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
5230 "management frame in non-AP mode");
5231 break;
5232 #ifdef CONFIG_AP
5233 }
5234
5235 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
5236 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
5237 const u8 *ie;
5238 size_t ie_len;
5239
5240 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
5241 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
5242
5243 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
5244 mgmt->bssid, ie, ie_len,
5245 data->rx_mgmt.ssi_signal);
5246 }
5247
5248 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
5249 #endif /* CONFIG_AP */
5250 break;
5251 }
5252 case EVENT_RX_PROBE_REQ:
5253 if (data->rx_probe_req.sa == NULL ||
5254 data->rx_probe_req.ie == NULL)
5255 break;
5256 #ifdef CONFIG_AP
5257 if (wpa_s->ap_iface) {
5258 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
5259 data->rx_probe_req.sa,
5260 data->rx_probe_req.da,
5261 data->rx_probe_req.bssid,
5262 data->rx_probe_req.ie,
5263 data->rx_probe_req.ie_len,
5264 data->rx_probe_req.ssi_signal);
5265 break;
5266 }
5267 #endif /* CONFIG_AP */
5268 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
5269 data->rx_probe_req.da,
5270 data->rx_probe_req.bssid,
5271 data->rx_probe_req.ie,
5272 data->rx_probe_req.ie_len,
5273 0,
5274 data->rx_probe_req.ssi_signal);
5275 break;
5276 case EVENT_REMAIN_ON_CHANNEL:
5277 #ifdef CONFIG_OFFCHANNEL
5278 offchannel_remain_on_channel_cb(
5279 wpa_s, data->remain_on_channel.freq,
5280 data->remain_on_channel.duration);
5281 #endif /* CONFIG_OFFCHANNEL */
5282 wpas_p2p_remain_on_channel_cb(
5283 wpa_s, data->remain_on_channel.freq,
5284 data->remain_on_channel.duration);
5285 #ifdef CONFIG_DPP
5286 wpas_dpp_remain_on_channel_cb(
5287 wpa_s, data->remain_on_channel.freq,
5288 data->remain_on_channel.duration);
5289 #endif /* CONFIG_DPP */
5290 break;
5291 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
5292 #ifdef CONFIG_OFFCHANNEL
5293 offchannel_cancel_remain_on_channel_cb(
5294 wpa_s, data->remain_on_channel.freq);
5295 #endif /* CONFIG_OFFCHANNEL */
5296 wpas_p2p_cancel_remain_on_channel_cb(
5297 wpa_s, data->remain_on_channel.freq);
5298 #ifdef CONFIG_DPP
5299 wpas_dpp_cancel_remain_on_channel_cb(
5300 wpa_s, data->remain_on_channel.freq);
5301 #endif /* CONFIG_DPP */
5302 break;
5303 case EVENT_EAPOL_RX:
5304 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
5305 data->eapol_rx.data,
5306 data->eapol_rx.data_len);
5307 break;
5308 case EVENT_SIGNAL_CHANGE:
5309 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
5310 "above=%d signal=%d noise=%d txrate=%d",
5311 data->signal_change.above_threshold,
5312 data->signal_change.current_signal,
5313 data->signal_change.current_noise,
5314 data->signal_change.current_txrate);
5315 wpa_bss_update_level(wpa_s->current_bss,
5316 data->signal_change.current_signal);
5317 bgscan_notify_signal_change(
5318 wpa_s, data->signal_change.above_threshold,
5319 data->signal_change.current_signal,
5320 data->signal_change.current_noise,
5321 data->signal_change.current_txrate);
5322 break;
5323 case EVENT_INTERFACE_MAC_CHANGED:
5324 wpa_supplicant_update_mac_addr(wpa_s);
5325 break;
5326 case EVENT_INTERFACE_ENABLED:
5327 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
5328 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
5329 eloop_cancel_timeout(wpas_clear_disabled_interface,
5330 wpa_s, NULL);
5331 wpa_supplicant_update_mac_addr(wpa_s);
5332 wpa_supplicant_set_default_scan_ies(wpa_s);
5333 if (wpa_s->p2p_mgmt) {
5334 wpa_supplicant_set_state(wpa_s,
5335 WPA_DISCONNECTED);
5336 break;
5337 }
5338
5339 #ifdef CONFIG_AP
5340 if (!wpa_s->ap_iface) {
5341 wpa_supplicant_set_state(wpa_s,
5342 WPA_DISCONNECTED);
5343 wpa_s->scan_req = NORMAL_SCAN_REQ;
5344 wpa_supplicant_req_scan(wpa_s, 0, 0);
5345 } else
5346 wpa_supplicant_set_state(wpa_s,
5347 WPA_COMPLETED);
5348 #else /* CONFIG_AP */
5349 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
5350 wpa_supplicant_req_scan(wpa_s, 0, 0);
5351 #endif /* CONFIG_AP */
5352 }
5353 break;
5354 case EVENT_INTERFACE_DISABLED:
5355 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
5356 #ifdef CONFIG_P2P
5357 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
5358 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
5359 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
5360 /*
5361 * Mark interface disabled if this happens to end up not
5362 * being removed as a separate P2P group interface.
5363 */
5364 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
5365 /*
5366 * The interface was externally disabled. Remove
5367 * it assuming an external entity will start a
5368 * new session if needed.
5369 */
5370 if (wpa_s->current_ssid &&
5371 wpa_s->current_ssid->p2p_group)
5372 wpas_p2p_interface_unavailable(wpa_s);
5373 else
5374 wpas_p2p_disconnect(wpa_s);
5375 /*
5376 * wpa_s instance may have been freed, so must not use
5377 * it here anymore.
5378 */
5379 break;
5380 }
5381 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
5382 p2p_in_progress(wpa_s->global->p2p) > 1) {
5383 /* This radio work will be cancelled, so clear P2P
5384 * state as well.
5385 */
5386 p2p_stop_find(wpa_s->global->p2p);
5387 }
5388 #endif /* CONFIG_P2P */
5389
5390 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
5391 /*
5392 * Indicate disconnection to keep ctrl_iface events
5393 * consistent.
5394 */
5395 wpa_supplicant_event_disassoc(
5396 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
5397 }
5398 wpa_supplicant_mark_disassoc(wpa_s);
5399 os_reltime_age(&wpa_s->last_scan, &age);
5400 if (age.sec >= wpa_s->conf->scan_res_valid_for_connect) {
5401 clear_at.sec = wpa_s->conf->scan_res_valid_for_connect;
5402 clear_at.usec = 0;
5403 } else {
5404 struct os_reltime tmp;
5405
5406 tmp.sec = wpa_s->conf->scan_res_valid_for_connect;
5407 tmp.usec = 0;
5408 os_reltime_sub(&tmp, &age, &clear_at);
5409 }
5410 eloop_register_timeout(clear_at.sec, clear_at.usec,
5411 wpas_clear_disabled_interface,
5412 wpa_s, NULL);
5413 radio_remove_works(wpa_s, NULL, 0);
5414
5415 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
5416 break;
5417 case EVENT_CHANNEL_LIST_CHANGED:
5418 wpa_supplicant_update_channel_list(
5419 wpa_s, &data->channel_list_changed);
5420 break;
5421 case EVENT_INTERFACE_UNAVAILABLE:
5422 wpas_p2p_interface_unavailable(wpa_s);
5423 break;
5424 case EVENT_BEST_CHANNEL:
5425 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
5426 "(%d %d %d)",
5427 data->best_chan.freq_24, data->best_chan.freq_5,
5428 data->best_chan.freq_overall);
5429 wpa_s->best_24_freq = data->best_chan.freq_24;
5430 wpa_s->best_5_freq = data->best_chan.freq_5;
5431 wpa_s->best_overall_freq = data->best_chan.freq_overall;
5432 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
5433 data->best_chan.freq_5,
5434 data->best_chan.freq_overall);
5435 break;
5436 case EVENT_UNPROT_DEAUTH:
5437 wpa_supplicant_event_unprot_deauth(wpa_s,
5438 &data->unprot_deauth);
5439 break;
5440 case EVENT_UNPROT_DISASSOC:
5441 wpa_supplicant_event_unprot_disassoc(wpa_s,
5442 &data->unprot_disassoc);
5443 break;
5444 case EVENT_STATION_LOW_ACK:
5445 #ifdef CONFIG_AP
5446 if (wpa_s->ap_iface && data)
5447 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
5448 data->low_ack.addr);
5449 #endif /* CONFIG_AP */
5450 #ifdef CONFIG_TDLS
5451 if (data)
5452 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
5453 data->low_ack.addr);
5454 #endif /* CONFIG_TDLS */
5455 break;
5456 case EVENT_IBSS_PEER_LOST:
5457 #ifdef CONFIG_IBSS_RSN
5458 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
5459 #endif /* CONFIG_IBSS_RSN */
5460 break;
5461 case EVENT_DRIVER_GTK_REKEY:
5462 if (os_memcmp(data->driver_gtk_rekey.bssid,
5463 wpa_s->bssid, ETH_ALEN))
5464 break;
5465 if (!wpa_s->wpa)
5466 break;
5467 wpa_sm_update_replay_ctr(wpa_s->wpa,
5468 data->driver_gtk_rekey.replay_ctr);
5469 break;
5470 case EVENT_SCHED_SCAN_STOPPED:
5471 wpa_s->sched_scanning = 0;
5472 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
5473 wpa_supplicant_notify_scanning(wpa_s, 0);
5474
5475 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
5476 break;
5477
5478 /*
5479 * If the driver stopped scanning without being requested to,
5480 * request a new scan to continue scanning for networks.
5481 */
5482 if (!wpa_s->sched_scan_stop_req &&
5483 wpa_s->wpa_state == WPA_SCANNING) {
5484 wpa_dbg(wpa_s, MSG_DEBUG,
5485 "Restart scanning after unexpected sched_scan stop event");
5486 wpa_supplicant_req_scan(wpa_s, 1, 0);
5487 break;
5488 }
5489
5490 wpa_s->sched_scan_stop_req = 0;
5491
5492 /*
5493 * Start a new sched scan to continue searching for more SSIDs
5494 * either if timed out or PNO schedule scan is pending.
5495 */
5496 if (wpa_s->sched_scan_timed_out) {
5497 wpa_supplicant_req_sched_scan(wpa_s);
5498 } else if (wpa_s->pno_sched_pending) {
5499 wpa_s->pno_sched_pending = 0;
5500 wpas_start_pno(wpa_s);
5501 } else if (resched) {
5502 wpa_supplicant_req_scan(wpa_s, 0, 0);
5503 }
5504
5505 break;
5506 case EVENT_WPS_BUTTON_PUSHED:
5507 #ifdef CONFIG_WPS
5508 wpas_wps_start_pbc(wpa_s, NULL, 0, 0);
5509 #endif /* CONFIG_WPS */
5510 break;
5511 case EVENT_AVOID_FREQUENCIES:
5512 wpa_supplicant_notify_avoid_freq(wpa_s, data);
5513 break;
5514 case EVENT_CONNECT_FAILED_REASON:
5515 #ifdef CONFIG_AP
5516 if (!wpa_s->ap_iface || !data)
5517 break;
5518 hostapd_event_connect_failed_reason(
5519 wpa_s->ap_iface->bss[0],
5520 data->connect_failed_reason.addr,
5521 data->connect_failed_reason.code);
5522 #endif /* CONFIG_AP */
5523 break;
5524 case EVENT_NEW_PEER_CANDIDATE:
5525 #ifdef CONFIG_MESH
5526 if (!wpa_s->ifmsh || !data)
5527 break;
5528 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
5529 data->mesh_peer.ies,
5530 data->mesh_peer.ie_len);
5531 #endif /* CONFIG_MESH */
5532 break;
5533 case EVENT_SURVEY:
5534 #ifdef CONFIG_AP
5535 if (!wpa_s->ap_iface)
5536 break;
5537 hostapd_event_get_survey(wpa_s->ap_iface,
5538 &data->survey_results);
5539 #endif /* CONFIG_AP */
5540 break;
5541 case EVENT_ACS_CHANNEL_SELECTED:
5542 #ifdef CONFIG_AP
5543 #ifdef CONFIG_ACS
5544 if (!wpa_s->ap_iface)
5545 break;
5546 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
5547 &data->acs_selected_channels);
5548 #endif /* CONFIG_ACS */
5549 #endif /* CONFIG_AP */
5550 break;
5551 case EVENT_P2P_LO_STOP:
5552 #ifdef CONFIG_P2P
5553 wpa_s->p2p_lo_started = 0;
5554 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP
5555 P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d",
5556 data->p2p_lo_stop.reason_code);
5557 #endif /* CONFIG_P2P */
5558 break;
5559 case EVENT_BEACON_LOSS:
5560 if (!wpa_s->current_bss || !wpa_s->current_ssid)
5561 break;
5562 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_BEACON_LOSS);
5563 bgscan_notify_beacon_loss(wpa_s);
5564 break;
5565 case EVENT_EXTERNAL_AUTH:
5566 #ifdef CONFIG_SAE
5567 if (!wpa_s->current_ssid) {
5568 wpa_printf(MSG_DEBUG, "SAE: current_ssid is NULL");
5569 break;
5570 }
5571 sme_external_auth_trigger(wpa_s, data);
5572 #endif /* CONFIG_SAE */
5573 break;
5574 case EVENT_PORT_AUTHORIZED:
5575 wpa_supplicant_event_port_authorized(wpa_s);
5576 break;
5577 case EVENT_STATION_OPMODE_CHANGED:
5578 #ifdef CONFIG_AP
5579 if (!wpa_s->ap_iface || !data)
5580 break;
5581
5582 hostapd_event_sta_opmode_changed(wpa_s->ap_iface->bss[0],
5583 data->sta_opmode.addr,
5584 data->sta_opmode.smps_mode,
5585 data->sta_opmode.chan_width,
5586 data->sta_opmode.rx_nss);
5587 #endif /* CONFIG_AP */
5588 break;
5589 case EVENT_UNPROT_BEACON:
5590 wpas_event_unprot_beacon(wpa_s, &data->unprot_beacon);
5591 break;
5592 default:
5593 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
5594 break;
5595 }
5596 }
5597
5598
wpa_supplicant_event_global(void * ctx,enum wpa_event_type event,union wpa_event_data * data)5599 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
5600 union wpa_event_data *data)
5601 {
5602 struct wpa_supplicant *wpa_s;
5603
5604 if (event != EVENT_INTERFACE_STATUS)
5605 return;
5606
5607 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
5608 if (wpa_s && wpa_s->driver->get_ifindex) {
5609 unsigned int ifindex;
5610
5611 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
5612 if (ifindex != data->interface_status.ifindex) {
5613 wpa_dbg(wpa_s, MSG_DEBUG,
5614 "interface status ifindex %d mismatch (%d)",
5615 ifindex, data->interface_status.ifindex);
5616 return;
5617 }
5618 }
5619 #ifdef CONFIG_MATCH_IFACE
5620 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
5621 struct wpa_interface *wpa_i;
5622
5623 wpa_i = wpa_supplicant_match_iface(
5624 ctx, data->interface_status.ifname);
5625 if (!wpa_i)
5626 return;
5627 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
5628 os_free(wpa_i);
5629 }
5630 #endif /* CONFIG_MATCH_IFACE */
5631
5632 if (wpa_s)
5633 wpa_supplicant_event(wpa_s, event, data);
5634 }
5635