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 #ifdef __ZEPHYR__
10 #include <supp_events.h>
11 #endif /* __ZEPHYR__ */
12
13 #include "includes.h"
14
15 #include "common.h"
16 #include "eapol_supp/eapol_supp_sm.h"
17 #include "rsn_supp/wpa.h"
18 #include "eloop.h"
19 #include "config.h"
20 #include "l2_packet/l2_packet.h"
21 #include "wpa_supplicant_i.h"
22 #include "driver_i.h"
23 #include "pcsc_funcs.h"
24 #include "rsn_supp/preauth.h"
25 #include "rsn_supp/pmksa_cache.h"
26 #include "common/wpa_ctrl.h"
27 #include "eap_peer/eap.h"
28 #include "ap/hostapd.h"
29 #include "p2p/p2p.h"
30 #include "fst/fst.h"
31 #include "wnm_sta.h"
32 #include "notify.h"
33 #include "common/ieee802_11_defs.h"
34 #include "common/ieee802_11_common.h"
35 #include "common/gas_server.h"
36 #include "common/dpp.h"
37 #include "common/ptksa_cache.h"
38 #include "crypto/random.h"
39 #include "bssid_ignore.h"
40 #include "wpas_glue.h"
41 #include "wps_supplicant.h"
42 #include "ibss_rsn.h"
43 #include "sme.h"
44 #include "gas_query.h"
45 #include "p2p_supplicant.h"
46 #include "bgscan.h"
47 #include "autoscan.h"
48 #include "ap.h"
49 #include "bss.h"
50 #include "scan.h"
51 #include "offchannel.h"
52 #include "interworking.h"
53 #include "mesh.h"
54 #include "mesh_mpm.h"
55 #include "wmm_ac.h"
56 #include "dpp_supplicant.h"
57
58
59 #define MAX_OWE_TRANSITION_BSS_SELECT_COUNT 5
60
61
62 #ifndef CONFIG_NO_SCAN_PROCESSING
63 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
64 int new_scan, int own_request);
65 #endif /* CONFIG_NO_SCAN_PROCESSING */
66
67
wpas_temp_disabled(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)68 int wpas_temp_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
69 {
70 struct os_reltime now;
71
72 if (ssid == NULL || ssid->disabled_until.sec == 0)
73 return 0;
74
75 os_get_reltime(&now);
76 if (ssid->disabled_until.sec > now.sec)
77 return ssid->disabled_until.sec - now.sec;
78
79 wpas_clear_temp_disabled(wpa_s, ssid, 0);
80
81 return 0;
82 }
83
84
85 #ifndef CONFIG_NO_SCAN_PROCESSING
86 /**
87 * wpas_reenabled_network_time - Time until first network is re-enabled
88 * @wpa_s: Pointer to wpa_supplicant data
89 * Returns: If all enabled networks are temporarily disabled, returns the time
90 * (in sec) until the first network is re-enabled. Otherwise returns 0.
91 *
92 * This function is used in case all enabled networks are temporarily disabled,
93 * in which case it returns the time (in sec) that the first network will be
94 * re-enabled. The function assumes that at least one network is enabled.
95 */
wpas_reenabled_network_time(struct wpa_supplicant * wpa_s)96 static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
97 {
98 struct wpa_ssid *ssid;
99 int disabled_for, res = 0;
100
101 #ifdef CONFIG_INTERWORKING
102 if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
103 wpa_s->conf->cred)
104 return 0;
105 #endif /* CONFIG_INTERWORKING */
106
107 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
108 if (ssid->disabled)
109 continue;
110
111 disabled_for = wpas_temp_disabled(wpa_s, ssid);
112 if (!disabled_for)
113 return 0;
114
115 if (!res || disabled_for < res)
116 res = disabled_for;
117 }
118
119 return res;
120 }
121 #endif /* CONFIG_NO_SCAN_PROCESSING */
122
123
wpas_network_reenabled(void * eloop_ctx,void * timeout_ctx)124 void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
125 {
126 struct wpa_supplicant *wpa_s = eloop_ctx;
127
128 if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
129 return;
130
131 wpa_dbg(wpa_s, MSG_DEBUG,
132 "Try to associate due to network getting re-enabled");
133 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
134 wpa_supplicant_cancel_sched_scan(wpa_s);
135 wpa_supplicant_req_scan(wpa_s, 0, 0);
136 }
137 }
138
139
wpa_supplicant_get_new_bss(struct wpa_supplicant * wpa_s,const u8 * bssid)140 static struct wpa_bss * wpa_supplicant_get_new_bss(
141 struct wpa_supplicant *wpa_s, const u8 *bssid)
142 {
143 struct wpa_bss *bss = NULL;
144 struct wpa_ssid *ssid = wpa_s->current_ssid;
145
146 if (ssid->ssid_len > 0)
147 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
148 if (!bss)
149 bss = wpa_bss_get_bssid(wpa_s, bssid);
150
151 return bss;
152 }
153
154
wpa_supplicant_update_current_bss(struct wpa_supplicant * wpa_s)155 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
156 {
157 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
158
159 if (!bss) {
160 wpa_supplicant_update_scan_results(wpa_s);
161
162 /* Get the BSS from the new scan results */
163 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
164 }
165
166 if (bss)
167 wpa_s->current_bss = bss;
168 }
169
170
wpa_supplicant_select_config(struct wpa_supplicant * wpa_s)171 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
172 {
173 struct wpa_ssid *ssid, *old_ssid;
174 u8 drv_ssid[SSID_MAX_LEN];
175 size_t drv_ssid_len;
176 int res;
177
178 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
179 wpa_supplicant_update_current_bss(wpa_s);
180
181 if (wpa_s->current_ssid->ssid_len == 0)
182 return 0; /* current profile still in use */
183 res = wpa_drv_get_ssid(wpa_s, drv_ssid);
184 if (res < 0) {
185 wpa_msg(wpa_s, MSG_INFO,
186 "Failed to read SSID from driver");
187 return 0; /* try to use current profile */
188 }
189 drv_ssid_len = res;
190
191 if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
192 os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
193 drv_ssid_len) == 0)
194 return 0; /* current profile still in use */
195
196 #ifdef CONFIG_OWE
197 if ((wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
198 wpa_s->current_bss &&
199 (wpa_s->current_bss->flags & WPA_BSS_OWE_TRANSITION) &&
200 drv_ssid_len == wpa_s->current_bss->ssid_len &&
201 os_memcmp(drv_ssid, wpa_s->current_bss->ssid,
202 drv_ssid_len) == 0)
203 return 0; /* current profile still in use */
204 #endif /* CONFIG_OWE */
205
206 wpa_msg(wpa_s, MSG_DEBUG,
207 "Driver-initiated BSS selection changed the SSID to %s",
208 wpa_ssid_txt(drv_ssid, drv_ssid_len));
209 /* continue selecting a new network profile */
210 }
211
212 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
213 "information");
214 ssid = wpa_supplicant_get_ssid(wpa_s);
215 if (ssid == NULL) {
216 wpa_msg(wpa_s, MSG_INFO,
217 "No network configuration found for the current AP");
218 return -1;
219 }
220
221 if (wpas_network_disabled(wpa_s, ssid)) {
222 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
223 return -1;
224 }
225
226 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
227 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
228 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
229 return -1;
230 }
231
232 res = wpas_temp_disabled(wpa_s, ssid);
233 if (res > 0) {
234 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
235 "disabled for %d second(s)", res);
236 return -1;
237 }
238
239 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
240 "current AP");
241 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
242 u8 wpa_ie[80];
243 size_t wpa_ie_len = sizeof(wpa_ie);
244 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
245 wpa_ie, &wpa_ie_len) < 0)
246 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
247 } else {
248 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
249 }
250
251 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
252 eapol_sm_invalidate_cached_session(wpa_s->eapol);
253 old_ssid = wpa_s->current_ssid;
254 wpa_s->current_ssid = ssid;
255
256 wpa_supplicant_update_current_bss(wpa_s);
257
258 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
259 wpa_supplicant_initiate_eapol(wpa_s);
260 if (old_ssid != wpa_s->current_ssid)
261 wpas_notify_network_changed(wpa_s);
262
263 return 0;
264 }
265
266
wpa_supplicant_stop_countermeasures(void * eloop_ctx,void * sock_ctx)267 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
268 {
269 struct wpa_supplicant *wpa_s = eloop_ctx;
270
271 if (wpa_s->countermeasures) {
272 wpa_s->countermeasures = 0;
273 wpa_drv_set_countermeasures(wpa_s, 0);
274 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
275
276 /*
277 * It is possible that the device is sched scanning, which means
278 * that a connection attempt will be done only when we receive
279 * scan results. However, in this case, it would be preferable
280 * to scan and connect immediately, so cancel the sched_scan and
281 * issue a regular scan flow.
282 */
283 wpa_supplicant_cancel_sched_scan(wpa_s);
284 wpa_supplicant_req_scan(wpa_s, 0, 0);
285 }
286 }
287
288
wpa_supplicant_mark_disassoc(struct wpa_supplicant * wpa_s)289 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
290 {
291 int bssid_changed;
292
293 wnm_bss_keep_alive_deinit(wpa_s);
294
295 #ifdef CONFIG_IBSS_RSN
296 ibss_rsn_deinit(wpa_s->ibss_rsn);
297 wpa_s->ibss_rsn = NULL;
298 #endif /* CONFIG_IBSS_RSN */
299
300 #ifdef CONFIG_AP
301 wpa_supplicant_ap_deinit(wpa_s);
302 #endif /* CONFIG_AP */
303
304 #ifdef CONFIG_HS20
305 /* Clear possibly configured frame filters */
306 wpa_drv_configure_frame_filters(wpa_s, 0);
307 #endif /* CONFIG_HS20 */
308
309 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
310 return;
311
312 if (os_reltime_initialized(&wpa_s->session_start)) {
313 os_reltime_age(&wpa_s->session_start, &wpa_s->session_length);
314 wpa_s->session_start.sec = 0;
315 wpa_s->session_start.usec = 0;
316 wpas_notify_session_length(wpa_s);
317 }
318
319 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
320 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
321 os_memset(wpa_s->bssid, 0, ETH_ALEN);
322 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
323 sme_clear_on_disassoc(wpa_s);
324 wpa_s->current_bss = NULL;
325 wpa_s->assoc_freq = 0;
326
327 if (bssid_changed)
328 wpas_notify_bssid_changed(wpa_s);
329
330 eapol_sm_notify_portEnabled(wpa_s->eapol, false);
331 eapol_sm_notify_portValid(wpa_s->eapol, false);
332 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
333 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE ||
334 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP || wpa_s->drv_authorized_port)
335 eapol_sm_notify_eap_success(wpa_s->eapol, false);
336 wpa_s->drv_authorized_port = 0;
337 wpa_s->ap_ies_from_associnfo = 0;
338 wpa_s->current_ssid = NULL;
339 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
340 wpa_s->key_mgmt = 0;
341
342 wpas_rrm_reset(wpa_s);
343 wpa_s->wnmsleep_used = 0;
344 wnm_clear_coloc_intf_reporting(wpa_s);
345 wpa_s->disable_mbo_oce = 0;
346
347 #ifdef CONFIG_TESTING_OPTIONS
348 wpa_s->last_tk_alg = WPA_ALG_NONE;
349 os_memset(wpa_s->last_tk, 0, sizeof(wpa_s->last_tk));
350 #endif /* CONFIG_TESTING_OPTIONS */
351 wpa_s->ieee80211ac = 0;
352
353 if (wpa_s->enabled_4addr_mode && wpa_drv_set_4addr_mode(wpa_s, 0) == 0)
354 wpa_s->enabled_4addr_mode = 0;
355 }
356
357
wpa_find_assoc_pmkid(struct wpa_supplicant * wpa_s)358 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
359 {
360 struct wpa_ie_data ie;
361 int pmksa_set = -1;
362 size_t i;
363 struct rsn_pmksa_cache_entry *cur_pmksa;
364
365 /* Start with assumption of no PMKSA cache entry match for cases other
366 * than SAE. In particular, this is needed to generate the PMKSA cache
367 * entries for Suite B cases with driver-based roaming indication. */
368 cur_pmksa = pmksa_cache_get_current(wpa_s->wpa);
369 if (cur_pmksa && !wpa_key_mgmt_sae(cur_pmksa->akmp))
370 pmksa_cache_clear_current(wpa_s->wpa);
371
372 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
373 ie.pmkid == NULL)
374 return;
375
376 for (i = 0; i < ie.num_pmkid; i++) {
377 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
378 ie.pmkid + i * PMKID_LEN,
379 NULL, NULL, 0, NULL, 0);
380 if (pmksa_set == 0) {
381 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
382 break;
383 }
384 }
385
386 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
387 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
388 }
389
390
wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant * wpa_s,union wpa_event_data * data)391 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
392 union wpa_event_data *data)
393 {
394 if (data == NULL) {
395 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
396 "event");
397 return;
398 }
399 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
400 " index=%d preauth=%d",
401 MAC2STR(data->pmkid_candidate.bssid),
402 data->pmkid_candidate.index,
403 data->pmkid_candidate.preauth);
404
405 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
406 data->pmkid_candidate.index,
407 data->pmkid_candidate.preauth);
408 }
409
410
wpa_supplicant_dynamic_keys(struct wpa_supplicant * wpa_s)411 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
412 {
413 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
414 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
415 return 0;
416
417 #ifdef IEEE8021X_EAPOL
418 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
419 wpa_s->current_ssid &&
420 !(wpa_s->current_ssid->eapol_flags &
421 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
422 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
423 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
424 * plaintext or static WEP keys). */
425 return 0;
426 }
427 #endif /* IEEE8021X_EAPOL */
428
429 return 1;
430 }
431
432
433 /**
434 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
435 * @wpa_s: pointer to wpa_supplicant data
436 * @ssid: Configuration data for the network
437 * Returns: 0 on success, -1 on failure
438 *
439 * This function is called when starting authentication with a network that is
440 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
441 */
wpa_supplicant_scard_init(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)442 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
443 struct wpa_ssid *ssid)
444 {
445 #ifdef IEEE8021X_EAPOL
446 #ifdef PCSC_FUNCS
447 int aka = 0, sim = 0;
448
449 if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
450 wpa_s->scard != NULL || wpa_s->conf->external_sim)
451 return 0;
452
453 if (ssid == NULL || ssid->eap.eap_methods == NULL) {
454 sim = 1;
455 aka = 1;
456 } else {
457 struct eap_method_type *eap = ssid->eap.eap_methods;
458 while (eap->vendor != EAP_VENDOR_IETF ||
459 eap->method != EAP_TYPE_NONE) {
460 if (eap->vendor == EAP_VENDOR_IETF) {
461 if (eap->method == EAP_TYPE_SIM)
462 sim = 1;
463 else if (eap->method == EAP_TYPE_AKA ||
464 eap->method == EAP_TYPE_AKA_PRIME)
465 aka = 1;
466 }
467 eap++;
468 }
469 }
470
471 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
472 sim = 0;
473 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
474 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
475 NULL)
476 aka = 0;
477
478 if (!sim && !aka) {
479 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
480 "use SIM, but neither EAP-SIM nor EAP-AKA are "
481 "enabled");
482 return 0;
483 }
484
485 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
486 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
487
488 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
489 if (wpa_s->scard == NULL) {
490 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
491 "(pcsc-lite)");
492 return -1;
493 }
494 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
495 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
496 #endif /* PCSC_FUNCS */
497 #endif /* IEEE8021X_EAPOL */
498
499 return 0;
500 }
501
502
503 #ifndef CONFIG_NO_SCAN_PROCESSING
504
505 #ifdef CONFIG_WEP
has_wep_key(struct wpa_ssid * ssid)506 static int has_wep_key(struct wpa_ssid *ssid)
507 {
508 int i;
509
510 for (i = 0; i < NUM_WEP_KEYS; i++) {
511 if (ssid->wep_key_len[i])
512 return 1;
513 }
514
515 return 0;
516 }
517 #endif /* CONFIG_WEP */
518
519
wpa_supplicant_match_privacy(struct wpa_bss * bss,struct wpa_ssid * ssid)520 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
521 struct wpa_ssid *ssid)
522 {
523 int privacy = 0;
524
525 if (ssid->mixed_cell)
526 return 1;
527
528 #ifdef CONFIG_WPS
529 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
530 return 1;
531 #endif /* CONFIG_WPS */
532
533 #ifdef CONFIG_OWE
534 if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only)
535 return 1;
536 #endif /* CONFIG_OWE */
537
538 #ifdef CONFIG_WEP
539 if (has_wep_key(ssid))
540 privacy = 1;
541 #endif /* CONFIG_WEP */
542
543 #ifdef IEEE8021X_EAPOL
544 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
545 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
546 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
547 privacy = 1;
548 #endif /* IEEE8021X_EAPOL */
549
550 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
551 privacy = 1;
552
553 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
554 privacy = 1;
555
556 if (bss->caps & IEEE80211_CAP_PRIVACY)
557 return privacy;
558 return !privacy;
559 }
560
561
wpa_supplicant_ssid_bss_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss,int debug_print)562 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
563 struct wpa_ssid *ssid,
564 struct wpa_bss *bss, int debug_print)
565 {
566 struct wpa_ie_data ie;
567 int proto_match = 0;
568 const u8 *rsn_ie, *wpa_ie;
569 int ret;
570 #ifdef CONFIG_WEP
571 int wep_ok;
572 #endif /* CONFIG_WEP */
573
574 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
575 if (ret >= 0)
576 return ret;
577
578 #ifdef CONFIG_WEP
579 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
580 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
581 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
582 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
583 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
584 #endif /* CONFIG_WEP */
585
586 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
587 while ((ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)) && rsn_ie) {
588 proto_match++;
589
590 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
591 if (debug_print)
592 wpa_dbg(wpa_s, MSG_DEBUG,
593 " skip RSN IE - parse failed");
594 break;
595 }
596 if (!ie.has_pairwise)
597 ie.pairwise_cipher = wpa_default_rsn_cipher(bss->freq);
598 if (!ie.has_group)
599 ie.group_cipher = wpa_default_rsn_cipher(bss->freq);
600
601 #ifdef CONFIG_WEP
602 if (wep_ok &&
603 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
604 {
605 if (debug_print)
606 wpa_dbg(wpa_s, MSG_DEBUG,
607 " selected based on TSN in RSN IE");
608 return 1;
609 }
610 #endif /* CONFIG_WEP */
611
612 if (!(ie.proto & ssid->proto) &&
613 !(ssid->proto & WPA_PROTO_OSEN)) {
614 if (debug_print)
615 wpa_dbg(wpa_s, MSG_DEBUG,
616 " skip RSN IE - proto mismatch");
617 break;
618 }
619
620 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
621 if (debug_print)
622 wpa_dbg(wpa_s, MSG_DEBUG,
623 " skip RSN IE - PTK cipher mismatch");
624 break;
625 }
626
627 if (!(ie.group_cipher & ssid->group_cipher)) {
628 if (debug_print)
629 wpa_dbg(wpa_s, MSG_DEBUG,
630 " skip RSN IE - GTK cipher mismatch");
631 break;
632 }
633
634 if (ssid->group_mgmt_cipher &&
635 !(ie.mgmt_group_cipher & ssid->group_mgmt_cipher)) {
636 if (debug_print)
637 wpa_dbg(wpa_s, MSG_DEBUG,
638 " skip RSN IE - group mgmt cipher mismatch");
639 break;
640 }
641
642 if (!(ie.key_mgmt & ssid->key_mgmt)) {
643 if (debug_print)
644 wpa_dbg(wpa_s, MSG_DEBUG,
645 " skip RSN IE - key mgmt mismatch");
646 break;
647 }
648
649 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
650 wpas_get_ssid_pmf(wpa_s, ssid) ==
651 MGMT_FRAME_PROTECTION_REQUIRED) {
652 if (debug_print)
653 wpa_dbg(wpa_s, MSG_DEBUG,
654 " skip RSN IE - no mgmt frame protection");
655 break;
656 }
657 if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
658 wpas_get_ssid_pmf(wpa_s, ssid) ==
659 NO_MGMT_FRAME_PROTECTION) {
660 if (debug_print)
661 wpa_dbg(wpa_s, MSG_DEBUG,
662 " skip RSN IE - no mgmt frame protection enabled but AP requires it");
663 break;
664 }
665
666 if (debug_print)
667 wpa_dbg(wpa_s, MSG_DEBUG,
668 " selected based on RSN IE");
669 return 1;
670 }
671
672 if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED &&
673 (!(ssid->key_mgmt & WPA_KEY_MGMT_OWE) || ssid->owe_only)) {
674 if (debug_print)
675 wpa_dbg(wpa_s, MSG_DEBUG,
676 " skip - MFP Required but network not MFP Capable");
677 return 0;
678 }
679
680 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
681 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
682 proto_match++;
683
684 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
685 if (debug_print)
686 wpa_dbg(wpa_s, MSG_DEBUG,
687 " skip WPA IE - parse failed");
688 break;
689 }
690
691 #ifdef CONFIG_WEP
692 if (wep_ok &&
693 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
694 {
695 if (debug_print)
696 wpa_dbg(wpa_s, MSG_DEBUG,
697 " selected based on TSN in WPA IE");
698 return 1;
699 }
700 #endif /* CONFIG_WEP */
701
702 if (!(ie.proto & ssid->proto)) {
703 if (debug_print)
704 wpa_dbg(wpa_s, MSG_DEBUG,
705 " skip WPA IE - proto mismatch");
706 break;
707 }
708
709 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
710 if (debug_print)
711 wpa_dbg(wpa_s, MSG_DEBUG,
712 " skip WPA IE - PTK cipher mismatch");
713 break;
714 }
715
716 if (!(ie.group_cipher & ssid->group_cipher)) {
717 if (debug_print)
718 wpa_dbg(wpa_s, MSG_DEBUG,
719 " skip WPA IE - GTK cipher mismatch");
720 break;
721 }
722
723 if (!(ie.key_mgmt & ssid->key_mgmt)) {
724 if (debug_print)
725 wpa_dbg(wpa_s, MSG_DEBUG,
726 " skip WPA IE - key mgmt mismatch");
727 break;
728 }
729
730 if (debug_print)
731 wpa_dbg(wpa_s, MSG_DEBUG,
732 " selected based on WPA IE");
733 return 1;
734 }
735
736 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
737 !rsn_ie) {
738 if (debug_print)
739 wpa_dbg(wpa_s, MSG_DEBUG,
740 " allow for non-WPA IEEE 802.1X");
741 return 1;
742 }
743
744 #ifdef CONFIG_OWE
745 if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only &&
746 !wpa_ie && !rsn_ie) {
747 if (wpa_s->owe_transition_select &&
748 wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE) &&
749 ssid->owe_transition_bss_select_count + 1 <=
750 MAX_OWE_TRANSITION_BSS_SELECT_COUNT) {
751 ssid->owe_transition_bss_select_count++;
752 if (debug_print)
753 wpa_dbg(wpa_s, MSG_DEBUG,
754 " skip OWE transition BSS (selection count %d does not exceed %d)",
755 ssid->owe_transition_bss_select_count,
756 MAX_OWE_TRANSITION_BSS_SELECT_COUNT);
757 wpa_s->owe_transition_search = 1;
758 return 0;
759 }
760 if (debug_print)
761 wpa_dbg(wpa_s, MSG_DEBUG,
762 " allow in OWE transition mode");
763 return 1;
764 }
765 #endif /* CONFIG_OWE */
766
767 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
768 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
769 if (debug_print)
770 wpa_dbg(wpa_s, MSG_DEBUG,
771 " skip - no WPA/RSN proto match");
772 return 0;
773 }
774
775 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
776 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
777 if (debug_print)
778 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
779 return 1;
780 }
781
782 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
783 if (debug_print)
784 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
785 return 1;
786 }
787
788 if (debug_print)
789 wpa_dbg(wpa_s, MSG_DEBUG,
790 " reject due to mismatch with WPA/WPA2");
791
792 return 0;
793 }
794
795
freq_allowed(int * freqs,int freq)796 static int freq_allowed(int *freqs, int freq)
797 {
798 int i;
799
800 if (freqs == NULL)
801 return 1;
802
803 for (i = 0; freqs[i]; i++)
804 if (freqs[i] == freq)
805 return 1;
806 return 0;
807 }
808
809
rate_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss,int debug_print)810 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
811 struct wpa_bss *bss, int debug_print)
812 {
813 const struct hostapd_hw_modes *mode = NULL, *modes;
814 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
815 const u8 *rate_ie;
816 int i, j, k;
817
818 if (bss->freq == 0)
819 return 1; /* Cannot do matching without knowing band */
820
821 modes = wpa_s->hw.modes;
822 if (modes == NULL) {
823 /*
824 * The driver does not provide any additional information
825 * about the utilized hardware, so allow the connection attempt
826 * to continue.
827 */
828 return 1;
829 }
830
831 for (i = 0; i < wpa_s->hw.num_modes; i++) {
832 for (j = 0; j < modes[i].num_channels; j++) {
833 int freq = modes[i].channels[j].freq;
834 if (freq == bss->freq) {
835 if (mode &&
836 mode->mode == HOSTAPD_MODE_IEEE80211G)
837 break; /* do not allow 802.11b replace
838 * 802.11g */
839 mode = &modes[i];
840 break;
841 }
842 }
843 }
844
845 if (mode == NULL)
846 return 0;
847
848 for (i = 0; i < (int) sizeof(scan_ie); i++) {
849 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
850 if (rate_ie == NULL)
851 continue;
852
853 for (j = 2; j < rate_ie[1] + 2; j++) {
854 int flagged = !!(rate_ie[j] & 0x80);
855 int r = (rate_ie[j] & 0x7f) * 5;
856
857 /*
858 * IEEE Std 802.11n-2009 7.3.2.2:
859 * The new BSS Membership selector value is encoded
860 * like a legacy basic rate, but it is not a rate and
861 * only indicates if the BSS members are required to
862 * support the mandatory features of Clause 20 [HT PHY]
863 * in order to join the BSS.
864 */
865 if (flagged && ((rate_ie[j] & 0x7f) ==
866 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
867 if (!ht_supported(mode)) {
868 if (debug_print)
869 wpa_dbg(wpa_s, MSG_DEBUG,
870 " hardware does not support HT PHY");
871 return 0;
872 }
873 continue;
874 }
875
876 /* There's also a VHT selector for 802.11ac */
877 if (flagged && ((rate_ie[j] & 0x7f) ==
878 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
879 if (!vht_supported(mode)) {
880 if (debug_print)
881 wpa_dbg(wpa_s, MSG_DEBUG,
882 " hardware does not support VHT PHY");
883 return 0;
884 }
885 continue;
886 }
887
888 #ifdef CONFIG_SAE
889 if (flagged && ((rate_ie[j] & 0x7f) ==
890 BSS_MEMBERSHIP_SELECTOR_SAE_H2E_ONLY)) {
891 if (wpa_s->conf->sae_pwe == 0 &&
892 !ssid->sae_password_id &&
893 wpa_key_mgmt_sae(ssid->key_mgmt)) {
894 if (debug_print)
895 wpa_dbg(wpa_s, MSG_DEBUG,
896 " SAE H2E disabled");
897 #ifdef CONFIG_TESTING_OPTIONS
898 if (wpa_s->ignore_sae_h2e_only) {
899 wpa_dbg(wpa_s, MSG_DEBUG,
900 "TESTING: Ignore SAE H2E requirement mismatch");
901 continue;
902 }
903 #endif /* CONFIG_TESTING_OPTIONS */
904 return 0;
905 }
906 continue;
907 }
908 #endif /* CONFIG_SAE */
909
910 if (!flagged)
911 continue;
912
913 /* check for legacy basic rates */
914 for (k = 0; k < mode->num_rates; k++) {
915 if (mode->rates[k] == r)
916 break;
917 }
918 if (k == mode->num_rates) {
919 /*
920 * IEEE Std 802.11-2007 7.3.2.2 demands that in
921 * order to join a BSS all required rates
922 * have to be supported by the hardware.
923 */
924 if (debug_print)
925 wpa_dbg(wpa_s, MSG_DEBUG,
926 " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
927 r / 10, r % 10,
928 bss->freq, mode->mode, mode->num_rates);
929 return 0;
930 }
931 }
932 }
933
934 return 1;
935 }
936
937
938 /*
939 * Test whether BSS is in an ESS.
940 * This is done differently in DMG (60 GHz) and non-DMG bands
941 */
bss_is_ess(struct wpa_bss * bss)942 static int bss_is_ess(struct wpa_bss *bss)
943 {
944 if (bss_is_dmg(bss)) {
945 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
946 IEEE80211_CAP_DMG_AP;
947 }
948
949 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
950 IEEE80211_CAP_ESS);
951 }
952
953
match_mac_mask(const u8 * addr_a,const u8 * addr_b,const u8 * mask)954 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
955 {
956 size_t i;
957
958 for (i = 0; i < ETH_ALEN; i++) {
959 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
960 return 0;
961 }
962 return 1;
963 }
964
965
addr_in_list(const u8 * addr,const u8 * list,size_t num)966 static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
967 {
968 size_t i;
969
970 for (i = 0; i < num; i++) {
971 const u8 *a = list + i * ETH_ALEN * 2;
972 const u8 *m = a + ETH_ALEN;
973
974 if (match_mac_mask(a, addr, m))
975 return 1;
976 }
977 return 0;
978 }
979
980
owe_trans_ssid(struct wpa_supplicant * wpa_s,struct wpa_bss * bss,const u8 ** ret_ssid,size_t * ret_ssid_len)981 static void owe_trans_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
982 const u8 **ret_ssid, size_t *ret_ssid_len)
983 {
984 #ifdef CONFIG_OWE
985 const u8 *owe, *pos, *end, *bssid;
986 u8 ssid_len;
987 struct wpa_bss *open_bss;
988
989 owe = wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE);
990 if (!owe || !wpa_bss_get_ie(bss, WLAN_EID_RSN))
991 return;
992
993 pos = owe + 6;
994 end = owe + 2 + owe[1];
995
996 if (end - pos < ETH_ALEN + 1)
997 return;
998 bssid = pos;
999 pos += ETH_ALEN;
1000 ssid_len = *pos++;
1001 if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN)
1002 return;
1003
1004 /* Match the profile SSID against the OWE transition mode SSID on the
1005 * open network. */
1006 wpa_dbg(wpa_s, MSG_DEBUG, "OWE: transition mode BSSID: " MACSTR
1007 " SSID: %s", MAC2STR(bssid), wpa_ssid_txt(pos, ssid_len));
1008 *ret_ssid = pos;
1009 *ret_ssid_len = ssid_len;
1010
1011 if (!(bss->flags & WPA_BSS_OWE_TRANSITION)) {
1012 struct wpa_ssid *ssid;
1013
1014 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1015 if (wpas_network_disabled(wpa_s, ssid))
1016 continue;
1017 if (ssid->ssid_len == ssid_len &&
1018 os_memcmp(ssid->ssid, pos, ssid_len) == 0) {
1019 /* OWE BSS in transition mode for a currently
1020 * enabled OWE network. */
1021 wpa_dbg(wpa_s, MSG_DEBUG,
1022 "OWE: transition mode OWE SSID for active OWE profile");
1023 bss->flags |= WPA_BSS_OWE_TRANSITION;
1024 break;
1025 }
1026 }
1027 }
1028
1029 if (bss->ssid_len > 0)
1030 return;
1031
1032 open_bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
1033 if (!open_bss)
1034 return;
1035 if (ssid_len != open_bss->ssid_len ||
1036 os_memcmp(pos, open_bss->ssid, ssid_len) != 0) {
1037 wpa_dbg(wpa_s, MSG_DEBUG,
1038 "OWE: transition mode SSID mismatch: %s",
1039 wpa_ssid_txt(open_bss->ssid, open_bss->ssid_len));
1040 return;
1041 }
1042
1043 owe = wpa_bss_get_vendor_ie(open_bss, OWE_IE_VENDOR_TYPE);
1044 if (!owe || wpa_bss_get_ie(open_bss, WLAN_EID_RSN)) {
1045 wpa_dbg(wpa_s, MSG_DEBUG,
1046 "OWE: transition mode open BSS unexpected info");
1047 return;
1048 }
1049
1050 pos = owe + 6;
1051 end = owe + 2 + owe[1];
1052
1053 if (end - pos < ETH_ALEN + 1)
1054 return;
1055 if (os_memcmp(pos, bss->bssid, ETH_ALEN) != 0) {
1056 wpa_dbg(wpa_s, MSG_DEBUG,
1057 "OWE: transition mode BSSID mismatch: " MACSTR,
1058 MAC2STR(pos));
1059 return;
1060 }
1061 pos += ETH_ALEN;
1062 ssid_len = *pos++;
1063 if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN)
1064 return;
1065 wpa_dbg(wpa_s, MSG_DEBUG, "OWE: learned transition mode OWE SSID: %s",
1066 wpa_ssid_txt(pos, ssid_len));
1067 os_memcpy(bss->ssid, pos, ssid_len);
1068 bss->ssid_len = ssid_len;
1069 bss->flags |= WPA_BSS_OWE_TRANSITION;
1070 #endif /* CONFIG_OWE */
1071 }
1072
1073
disabled_freq(struct wpa_supplicant * wpa_s,int freq)1074 static int disabled_freq(struct wpa_supplicant *wpa_s, int freq)
1075 {
1076 int i, j;
1077
1078 if (!wpa_s->hw.modes || !wpa_s->hw.num_modes)
1079 return 0;
1080
1081 for (j = 0; j < wpa_s->hw.num_modes; j++) {
1082 struct hostapd_hw_modes *mode = &wpa_s->hw.modes[j];
1083
1084 for (i = 0; i < mode->num_channels; i++) {
1085 struct hostapd_channel_data *chan = &mode->channels[i];
1086
1087 if (chan->freq == freq)
1088 return !!(chan->flag & HOSTAPD_CHAN_DISABLED);
1089 }
1090 }
1091
1092 return 1;
1093 }
1094
1095
1096 static bool wpa_scan_res_ok(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
1097 const u8 *match_ssid, size_t match_ssid_len,
1098 struct wpa_bss *bss, int bssid_ignore_count,
1099 bool debug_print);
1100
1101
1102 #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)1103 static bool sae_pk_acceptable_bss_with_pk(struct wpa_supplicant *wpa_s,
1104 struct wpa_bss *orig_bss,
1105 struct wpa_ssid *ssid,
1106 const u8 *match_ssid,
1107 size_t match_ssid_len)
1108 {
1109 struct wpa_bss *bss;
1110
1111 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1112 int count;
1113 const u8 *ie;
1114
1115 if (bss == orig_bss)
1116 continue;
1117 ie = wpa_bss_get_ie(bss, WLAN_EID_RSNX);
1118 if (!(ieee802_11_rsnx_capab(ie, WLAN_RSNX_CAPAB_SAE_PK)))
1119 continue;
1120
1121 /* TODO: Could be more thorough in checking what kind of
1122 * signal strength or throughput estimate would be acceptable
1123 * compared to the originally selected BSS. */
1124 if (bss->est_throughput < 2000)
1125 return false;
1126
1127 count = wpa_bssid_ignore_is_listed(wpa_s, bss->bssid);
1128 if (wpa_scan_res_ok(wpa_s, ssid, match_ssid, match_ssid_len,
1129 bss, count, 0))
1130 return true;
1131 }
1132
1133 return false;
1134 }
1135 #endif /* CONFIG_SAE_PK */
1136
1137
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)1138 static bool wpa_scan_res_ok(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
1139 const u8 *match_ssid, size_t match_ssid_len,
1140 struct wpa_bss *bss, int bssid_ignore_count,
1141 bool debug_print)
1142 {
1143 int res;
1144 bool wpa, check_ssid, osen, rsn_osen = false;
1145 struct wpa_ie_data data;
1146 #ifdef CONFIG_MBO
1147 const u8 *assoc_disallow;
1148 #endif /* CONFIG_MBO */
1149 #ifdef CONFIG_SAE
1150 u8 rsnxe_capa = 0;
1151 #endif /* CONFIG_SAE */
1152 const u8 *ie;
1153
1154 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1155 wpa = ie && ie[1];
1156 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1157 wpa |= ie && ie[1];
1158 if (ie && wpa_parse_wpa_ie_rsn(ie, 2 + ie[1], &data) == 0 &&
1159 (data.key_mgmt & WPA_KEY_MGMT_OSEN))
1160 rsn_osen = true;
1161 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
1162 osen = ie != NULL;
1163
1164 #ifdef CONFIG_SAE
1165 ie = wpa_bss_get_ie(bss, WLAN_EID_RSNX);
1166 if (ie && ie[1] >= 1)
1167 rsnxe_capa = ie[2];
1168 #endif /* CONFIG_SAE */
1169
1170 check_ssid = wpa || ssid->ssid_len > 0;
1171
1172 if (wpas_network_disabled(wpa_s, ssid)) {
1173 if (debug_print)
1174 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
1175 return false;
1176 }
1177
1178 res = wpas_temp_disabled(wpa_s, ssid);
1179 if (res > 0) {
1180 if (debug_print)
1181 wpa_dbg(wpa_s, MSG_DEBUG,
1182 " skip - disabled temporarily for %d second(s)",
1183 res);
1184 return false;
1185 }
1186
1187 #ifdef CONFIG_WPS
1188 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && bssid_ignore_count) {
1189 if (debug_print)
1190 wpa_dbg(wpa_s, MSG_DEBUG,
1191 " skip - BSSID ignored (WPS)");
1192 return false;
1193 }
1194
1195 if (wpa && ssid->ssid_len == 0 &&
1196 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
1197 check_ssid = false;
1198
1199 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
1200 /* Only allow wildcard SSID match if an AP advertises active
1201 * WPS operation that matches our mode. */
1202 check_ssid = ssid->ssid_len > 0 ||
1203 !wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss);
1204 }
1205 #endif /* CONFIG_WPS */
1206
1207 if (ssid->bssid_set && ssid->ssid_len == 0 &&
1208 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
1209 check_ssid = false;
1210
1211 if (check_ssid &&
1212 (match_ssid_len != ssid->ssid_len ||
1213 os_memcmp(match_ssid, ssid->ssid, match_ssid_len) != 0)) {
1214 if (debug_print)
1215 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
1216 return false;
1217 }
1218
1219 if (ssid->bssid_set &&
1220 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
1221 if (debug_print)
1222 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
1223 return false;
1224 }
1225
1226 /* check the list of BSSIDs to ignore */
1227 if (ssid->num_bssid_ignore &&
1228 addr_in_list(bss->bssid, ssid->bssid_ignore,
1229 ssid->num_bssid_ignore)) {
1230 if (debug_print)
1231 wpa_dbg(wpa_s, MSG_DEBUG,
1232 " skip - BSSID configured to be ignored");
1233 return false;
1234 }
1235
1236 /* if there is a list of accepted BSSIDs, only accept those APs */
1237 if (ssid->num_bssid_accept &&
1238 !addr_in_list(bss->bssid, ssid->bssid_accept,
1239 ssid->num_bssid_accept)) {
1240 if (debug_print)
1241 wpa_dbg(wpa_s, MSG_DEBUG,
1242 " skip - BSSID not in list of accepted values");
1243 return false;
1244 }
1245
1246 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss, debug_print))
1247 return false;
1248
1249 if (!osen && !wpa &&
1250 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
1251 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
1252 !(ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
1253 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
1254 if (debug_print)
1255 wpa_dbg(wpa_s, MSG_DEBUG,
1256 " skip - non-WPA network not allowed");
1257 return false;
1258 }
1259
1260 #ifdef CONFIG_WEP
1261 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) && has_wep_key(ssid)) {
1262 if (debug_print)
1263 wpa_dbg(wpa_s, MSG_DEBUG,
1264 " skip - ignore WPA/WPA2 AP for WEP network block");
1265 return false;
1266 }
1267 #endif /* CONFIG_WEP */
1268
1269 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen && !rsn_osen) {
1270 if (debug_print)
1271 wpa_dbg(wpa_s, MSG_DEBUG,
1272 " skip - non-OSEN network not allowed");
1273 return false;
1274 }
1275
1276 if (!wpa_supplicant_match_privacy(bss, ssid)) {
1277 if (debug_print)
1278 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy mismatch");
1279 return false;
1280 }
1281
1282 if (ssid->mode != WPAS_MODE_MESH && !bss_is_ess(bss) &&
1283 !bss_is_pbss(bss)) {
1284 if (debug_print)
1285 wpa_dbg(wpa_s, MSG_DEBUG,
1286 " skip - not ESS, PBSS, or MBSS");
1287 return false;
1288 }
1289
1290 if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) {
1291 if (debug_print)
1292 wpa_dbg(wpa_s, MSG_DEBUG,
1293 " skip - PBSS mismatch (ssid %d bss %d)",
1294 ssid->pbss, bss_is_pbss(bss));
1295 return false;
1296 }
1297
1298 if (!freq_allowed(ssid->freq_list, bss->freq)) {
1299 if (debug_print)
1300 wpa_dbg(wpa_s, MSG_DEBUG,
1301 " skip - frequency not allowed");
1302 return false;
1303 }
1304
1305 #ifdef CONFIG_MESH
1306 if (ssid->mode == WPAS_MODE_MESH && ssid->frequency > 0 &&
1307 ssid->frequency != bss->freq) {
1308 if (debug_print)
1309 wpa_dbg(wpa_s, MSG_DEBUG,
1310 " skip - frequency not allowed (mesh)");
1311 return false;
1312 }
1313 #endif /* CONFIG_MESH */
1314
1315 if (!rate_match(wpa_s, ssid, bss, debug_print)) {
1316 if (debug_print)
1317 wpa_dbg(wpa_s, MSG_DEBUG,
1318 " skip - rate sets do not match");
1319 return false;
1320 }
1321
1322 #ifdef CONFIG_SAE
1323 if ((wpa_s->conf->sae_pwe == 1 || ssid->sae_password_id) &&
1324 wpa_s->conf->sae_pwe != 3 && wpa_key_mgmt_sae(ssid->key_mgmt) &&
1325 !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_H2E))) {
1326 if (debug_print)
1327 wpa_dbg(wpa_s, MSG_DEBUG,
1328 " skip - SAE H2E required, but not supported by the AP");
1329 return false;
1330 }
1331 #endif /* CONFIG_SAE */
1332
1333 #ifdef CONFIG_SAE_PK
1334 if (ssid->sae_pk == SAE_PK_MODE_ONLY &&
1335 !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_PK))) {
1336 if (debug_print)
1337 wpa_dbg(wpa_s, MSG_DEBUG,
1338 " skip - SAE-PK required, but not supported by the AP");
1339 return false;
1340 }
1341 #endif /* CONFIG_SAE_PK */
1342
1343 #ifndef CONFIG_IBSS_RSN
1344 if (ssid->mode == WPAS_MODE_IBSS &&
1345 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE | WPA_KEY_MGMT_WPA_NONE))) {
1346 if (debug_print)
1347 wpa_dbg(wpa_s, MSG_DEBUG,
1348 " skip - IBSS RSN not supported in the build");
1349 return false;
1350 }
1351 #endif /* !CONFIG_IBSS_RSN */
1352
1353 #ifdef CONFIG_P2P
1354 if (ssid->p2p_group &&
1355 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1356 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1357 if (debug_print)
1358 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
1359 return false;
1360 }
1361
1362 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1363 struct wpabuf *p2p_ie;
1364 u8 dev_addr[ETH_ALEN];
1365
1366 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1367 if (!ie) {
1368 if (debug_print)
1369 wpa_dbg(wpa_s, MSG_DEBUG,
1370 " skip - no P2P element");
1371 return false;
1372 }
1373 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
1374 if (!p2p_ie) {
1375 if (debug_print)
1376 wpa_dbg(wpa_s, MSG_DEBUG,
1377 " skip - could not fetch P2P element");
1378 return false;
1379 }
1380
1381 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0 ||
1382 os_memcmp(dev_addr, ssid->go_p2p_dev_addr, ETH_ALEN) != 0) {
1383 if (debug_print)
1384 wpa_dbg(wpa_s, MSG_DEBUG,
1385 " skip - no matching GO P2P Device Address in P2P element");
1386 wpabuf_free(p2p_ie);
1387 return false;
1388 }
1389 wpabuf_free(p2p_ie);
1390 }
1391
1392 /*
1393 * TODO: skip the AP if its P2P IE has Group Formation bit set in the
1394 * P2P Group Capability Bitmap and we are not in Group Formation with
1395 * that device.
1396 */
1397 #endif /* CONFIG_P2P */
1398
1399 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time)) {
1400 struct os_reltime diff;
1401
1402 os_reltime_sub(&wpa_s->scan_min_time, &bss->last_update, &diff);
1403 if (debug_print)
1404 wpa_dbg(wpa_s, MSG_DEBUG,
1405 " skip - scan result not recent enough (%u.%06u seconds too old)",
1406 (unsigned int) diff.sec,
1407 (unsigned int) diff.usec);
1408 return false;
1409 }
1410 #ifdef CONFIG_MBO
1411 #ifdef CONFIG_TESTING_OPTIONS
1412 if (wpa_s->ignore_assoc_disallow)
1413 goto skip_assoc_disallow;
1414 #endif /* CONFIG_TESTING_OPTIONS */
1415 assoc_disallow = wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_ASSOC_DISALLOW);
1416 if (assoc_disallow && assoc_disallow[1] >= 1) {
1417 if (debug_print)
1418 wpa_dbg(wpa_s, MSG_DEBUG,
1419 " skip - MBO association disallowed (reason %u)",
1420 assoc_disallow[2]);
1421 return false;
1422 }
1423
1424 if (wpa_is_bss_tmp_disallowed(wpa_s, bss)) {
1425 if (debug_print)
1426 wpa_dbg(wpa_s, MSG_DEBUG,
1427 " skip - AP temporarily disallowed");
1428 return false;
1429 }
1430 #ifdef CONFIG_TESTING_OPTIONS
1431 skip_assoc_disallow:
1432 #endif /* CONFIG_TESTING_OPTIONS */
1433 #endif /* CONFIG_MBO */
1434
1435 #ifdef CONFIG_DPP
1436 if ((ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
1437 !wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, ssid) &&
1438 (!ssid->dpp_connector || !ssid->dpp_netaccesskey ||
1439 !ssid->dpp_csign)) {
1440 if (debug_print)
1441 wpa_dbg(wpa_s, MSG_DEBUG,
1442 " skip - no PMKSA entry for DPP");
1443 return false;
1444 }
1445 #endif /* CONFIG_DPP */
1446
1447 #ifdef CONFIG_SAE_PK
1448 if (ssid->sae_pk == SAE_PK_MODE_AUTOMATIC &&
1449 wpa_key_mgmt_sae(ssid->key_mgmt) &&
1450 ((ssid->sae_password &&
1451 sae_pk_valid_password(ssid->sae_password)) ||
1452 (!ssid->sae_password && ssid->passphrase &&
1453 sae_pk_valid_password(ssid->passphrase))) &&
1454 !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_PK)) &&
1455 sae_pk_acceptable_bss_with_pk(wpa_s, bss, ssid, match_ssid,
1456 match_ssid_len)) {
1457 if (debug_print)
1458 wpa_dbg(wpa_s, MSG_DEBUG,
1459 " skip - another acceptable BSS with SAE-PK in the same ESS");
1460 return false;
1461 }
1462 #endif /* CONFIG_SAE_PK */
1463
1464 if (bss->ssid_len == 0) {
1465 if (debug_print)
1466 wpa_dbg(wpa_s, MSG_DEBUG,
1467 " skip - no SSID known for the BSS");
1468 return false;
1469 }
1470
1471 /* Matching configuration found */
1472 return true;
1473 }
1474
1475
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)1476 struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
1477 int i, struct wpa_bss *bss,
1478 struct wpa_ssid *group,
1479 int only_first_ssid, int debug_print)
1480 {
1481 u8 wpa_ie_len, rsn_ie_len;
1482 const u8 *ie;
1483 struct wpa_ssid *ssid;
1484 int osen;
1485 const u8 *match_ssid;
1486 size_t match_ssid_len;
1487 int bssid_ignore_count;
1488
1489 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1490 wpa_ie_len = ie ? ie[1] : 0;
1491
1492 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1493 rsn_ie_len = ie ? ie[1] : 0;
1494
1495 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
1496 osen = ie != NULL;
1497
1498 if (debug_print) {
1499 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR
1500 " ssid='%s' wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
1501 i, MAC2STR(bss->bssid),
1502 wpa_ssid_txt(bss->ssid, bss->ssid_len),
1503 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
1504 bss->freq,
1505 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ?
1506 " wps" : "",
1507 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
1508 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE))
1509 ? " p2p" : "",
1510 osen ? " osen=1" : "");
1511 }
1512
1513 bssid_ignore_count = wpa_bssid_ignore_is_listed(wpa_s, bss->bssid);
1514 if (bssid_ignore_count) {
1515 int limit = 1;
1516 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
1517 /*
1518 * When only a single network is enabled, we can
1519 * trigger BSSID ignoring on the first failure. This
1520 * should not be done with multiple enabled networks to
1521 * avoid getting forced to move into a worse ESS on
1522 * single error if there are no other BSSes of the
1523 * current ESS.
1524 */
1525 limit = 0;
1526 }
1527 if (bssid_ignore_count > limit) {
1528 if (debug_print) {
1529 wpa_dbg(wpa_s, MSG_DEBUG,
1530 " skip - BSSID ignored (count=%d limit=%d)",
1531 bssid_ignore_count, limit);
1532 }
1533 return NULL;
1534 }
1535 }
1536
1537 match_ssid = bss->ssid;
1538 match_ssid_len = bss->ssid_len;
1539 owe_trans_ssid(wpa_s, bss, &match_ssid, &match_ssid_len);
1540
1541 if (match_ssid_len == 0) {
1542 if (debug_print)
1543 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
1544 return NULL;
1545 }
1546
1547 if (disallowed_bssid(wpa_s, bss->bssid)) {
1548 if (debug_print)
1549 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
1550 return NULL;
1551 }
1552
1553 if (disallowed_ssid(wpa_s, match_ssid, match_ssid_len)) {
1554 if (debug_print)
1555 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
1556 return NULL;
1557 }
1558
1559 if (disabled_freq(wpa_s, bss->freq)) {
1560 if (debug_print)
1561 wpa_dbg(wpa_s, MSG_DEBUG, " skip - channel disabled");
1562 return NULL;
1563 }
1564
1565 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
1566 if (wpa_scan_res_ok(wpa_s, ssid, match_ssid, match_ssid_len,
1567 bss, bssid_ignore_count, debug_print))
1568 return ssid;
1569 }
1570
1571 /* No matching configuration found */
1572 return NULL;
1573 }
1574
1575
1576 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)1577 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1578 struct wpa_ssid *group,
1579 struct wpa_ssid **selected_ssid,
1580 int only_first_ssid)
1581 {
1582 unsigned int i;
1583
1584 if (wpa_s->current_ssid) {
1585 struct wpa_ssid *ssid;
1586
1587 wpa_dbg(wpa_s, MSG_DEBUG,
1588 "Scan results matching the currently selected network");
1589 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1590 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1591
1592 ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1593 only_first_ssid, 0);
1594 if (ssid != wpa_s->current_ssid)
1595 continue;
1596 wpa_dbg(wpa_s, MSG_DEBUG, "%u: " MACSTR
1597 " freq=%d level=%d snr=%d est_throughput=%u",
1598 i, MAC2STR(bss->bssid), bss->freq, bss->level,
1599 bss->snr, bss->est_throughput);
1600 }
1601 }
1602
1603 if (only_first_ssid)
1604 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1605 group->id);
1606 else
1607 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1608 group->priority);
1609
1610 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1611 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1612
1613 wpa_s->owe_transition_select = 1;
1614 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1615 only_first_ssid, 1);
1616 wpa_s->owe_transition_select = 0;
1617 if (!*selected_ssid)
1618 continue;
1619 wpa_dbg(wpa_s, MSG_DEBUG, " selected %sBSS " MACSTR
1620 " ssid='%s'",
1621 bss == wpa_s->current_bss ? "current ": "",
1622 MAC2STR(bss->bssid),
1623 wpa_ssid_txt(bss->ssid, bss->ssid_len));
1624 return bss;
1625 }
1626
1627 return NULL;
1628 }
1629
1630
wpa_supplicant_pick_network(struct wpa_supplicant * wpa_s,struct wpa_ssid ** selected_ssid)1631 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1632 struct wpa_ssid **selected_ssid)
1633 {
1634 struct wpa_bss *selected = NULL;
1635 size_t prio;
1636 struct wpa_ssid *next_ssid = NULL;
1637 struct wpa_ssid *ssid;
1638
1639 if (wpa_s->last_scan_res == NULL ||
1640 wpa_s->last_scan_res_used == 0)
1641 return NULL; /* no scan results from last update */
1642
1643 if (wpa_s->next_ssid) {
1644 /* check that next_ssid is still valid */
1645 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1646 if (ssid == wpa_s->next_ssid)
1647 break;
1648 }
1649 next_ssid = ssid;
1650 wpa_s->next_ssid = NULL;
1651 }
1652
1653 while (selected == NULL) {
1654 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1655 if (next_ssid && next_ssid->priority ==
1656 wpa_s->conf->pssid[prio]->priority) {
1657 selected = wpa_supplicant_select_bss(
1658 wpa_s, next_ssid, selected_ssid, 1);
1659 if (selected)
1660 break;
1661 }
1662 selected = wpa_supplicant_select_bss(
1663 wpa_s, wpa_s->conf->pssid[prio],
1664 selected_ssid, 0);
1665 if (selected)
1666 break;
1667 }
1668
1669 if (selected == NULL && wpa_s->bssid_ignore &&
1670 !wpa_s->countermeasures) {
1671 wpa_dbg(wpa_s, MSG_DEBUG,
1672 "No APs found - clear BSSID ignore list and try again");
1673 wpa_bssid_ignore_clear(wpa_s);
1674 wpa_s->bssid_ignore_cleared = true;
1675 } else if (selected == NULL)
1676 break;
1677 }
1678
1679 ssid = *selected_ssid;
1680 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1681 !ssid->passphrase && !ssid->ext_psk) {
1682 const char *field_name, *txt = NULL;
1683
1684 wpa_dbg(wpa_s, MSG_DEBUG,
1685 "PSK/passphrase not yet available for the selected network");
1686
1687 wpas_notify_network_request(wpa_s, ssid,
1688 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1689
1690 field_name = wpa_supplicant_ctrl_req_to_string(
1691 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1692 if (field_name == NULL)
1693 return NULL;
1694
1695 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1696
1697 selected = NULL;
1698 }
1699
1700 return selected;
1701 }
1702
1703
wpa_supplicant_req_new_scan(struct wpa_supplicant * wpa_s,int timeout_sec,int timeout_usec)1704 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1705 int timeout_sec, int timeout_usec)
1706 {
1707 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1708 /*
1709 * No networks are enabled; short-circuit request so
1710 * we don't wait timeout seconds before transitioning
1711 * to INACTIVE state.
1712 */
1713 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1714 "since there are no enabled networks");
1715 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1716 return;
1717 }
1718
1719 wpa_s->scan_for_connection = 1;
1720 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1721 }
1722
1723
wpa_supplicant_connect(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)1724 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1725 struct wpa_bss *selected,
1726 struct wpa_ssid *ssid)
1727 {
1728 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1729 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1730 "PBC session overlap");
1731 wpas_notify_wps_event_pbc_overlap(wpa_s);
1732 #ifdef CONFIG_P2P
1733 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1734 wpa_s->p2p_in_provisioning) {
1735 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1736 wpa_s, NULL);
1737 return -1;
1738 }
1739 #endif /* CONFIG_P2P */
1740
1741 #ifdef CONFIG_WPS
1742 wpas_wps_pbc_overlap(wpa_s);
1743 wpas_wps_cancel(wpa_s);
1744 #endif /* CONFIG_WPS */
1745 return -1;
1746 }
1747
1748 wpa_msg(wpa_s, MSG_DEBUG,
1749 "Considering connect request: reassociate: %d selected: "
1750 MACSTR " bssid: " MACSTR " pending: " MACSTR
1751 " wpa_state: %s ssid=%p current_ssid=%p",
1752 wpa_s->reassociate, MAC2STR(selected->bssid),
1753 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1754 wpa_supplicant_state_txt(wpa_s->wpa_state),
1755 ssid, wpa_s->current_ssid);
1756
1757 /*
1758 * Do not trigger new association unless the BSSID has changed or if
1759 * reassociation is requested. If we are in process of associating with
1760 * the selected BSSID, do not trigger new attempt.
1761 */
1762 if (wpa_s->reassociate ||
1763 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1764 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1765 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1766 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1767 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1768 0) ||
1769 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1770 ssid != wpa_s->current_ssid)))) {
1771 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1772 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1773 return 0;
1774 }
1775 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1776 MAC2STR(selected->bssid));
1777 wpa_supplicant_associate(wpa_s, selected, ssid);
1778 } else {
1779 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1780 "connect with the selected AP");
1781 }
1782
1783 return 0;
1784 }
1785
1786
1787 static struct wpa_ssid *
wpa_supplicant_pick_new_network(struct wpa_supplicant * wpa_s)1788 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1789 {
1790 size_t prio;
1791 struct wpa_ssid *ssid;
1792
1793 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1794 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1795 {
1796 if (wpas_network_disabled(wpa_s, ssid))
1797 continue;
1798 #ifndef CONFIG_IBSS_RSN
1799 if (ssid->mode == WPAS_MODE_IBSS &&
1800 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE |
1801 WPA_KEY_MGMT_WPA_NONE))) {
1802 wpa_msg(wpa_s, MSG_INFO,
1803 "IBSS RSN not supported in the build - cannot use the profile for SSID '%s'",
1804 wpa_ssid_txt(ssid->ssid,
1805 ssid->ssid_len));
1806 continue;
1807 }
1808 #endif /* !CONFIG_IBSS_RSN */
1809 if (ssid->mode == WPAS_MODE_IBSS ||
1810 ssid->mode == WPAS_MODE_AP ||
1811 ssid->mode == WPAS_MODE_MESH)
1812 return ssid;
1813 }
1814 }
1815 return NULL;
1816 }
1817
1818
1819 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1820 * on BSS added and BSS changed events */
wpa_supplicant_rsn_preauth_scan_results(struct wpa_supplicant * wpa_s)1821 static void wpa_supplicant_rsn_preauth_scan_results(
1822 struct wpa_supplicant *wpa_s)
1823 {
1824 struct wpa_bss *bss;
1825
1826 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1827 return;
1828
1829 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1830 const u8 *ssid, *rsn;
1831
1832 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1833 if (ssid == NULL)
1834 continue;
1835
1836 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1837 if (rsn == NULL)
1838 continue;
1839
1840 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1841 }
1842
1843 }
1844
1845
1846 #ifndef CONFIG_NO_ROAMING
1847
wpas_get_snr_signal_info(u32 frequency,int avg_signal,int noise)1848 static int wpas_get_snr_signal_info(u32 frequency, int avg_signal, int noise)
1849 {
1850 if (noise == WPA_INVALID_NOISE)
1851 noise = IS_5GHZ(frequency) ? DEFAULT_NOISE_FLOOR_5GHZ :
1852 DEFAULT_NOISE_FLOOR_2GHZ;
1853 return avg_signal - noise;
1854 }
1855
1856
1857 static unsigned int
wpas_get_est_throughput_from_bss_snr(const struct wpa_supplicant * wpa_s,const struct wpa_bss * bss,int snr)1858 wpas_get_est_throughput_from_bss_snr(const struct wpa_supplicant *wpa_s,
1859 const struct wpa_bss *bss, int snr)
1860 {
1861 int rate = wpa_bss_get_max_rate(bss);
1862 const u8 *ies = wpa_bss_ie_ptr(bss);
1863 size_t ie_len = bss->ie_len ? bss->ie_len : bss->beacon_ie_len;
1864
1865 return wpas_get_est_tpt(wpa_s, ies, ie_len, rate, snr, bss->freq);
1866 }
1867
1868
wpa_supplicant_need_to_roam_within_ess(struct wpa_supplicant * wpa_s,struct wpa_bss * current_bss,struct wpa_bss * selected)1869 int wpa_supplicant_need_to_roam_within_ess(struct wpa_supplicant *wpa_s,
1870 struct wpa_bss *current_bss,
1871 struct wpa_bss *selected)
1872 {
1873 int min_diff, diff;
1874 int to_5ghz;
1875 int cur_level;
1876 unsigned int cur_est, sel_est;
1877 struct wpa_signal_info si;
1878 int cur_snr = 0;
1879 int ret = 0;
1880
1881 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1882 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1883 " freq=%d level=%d snr=%d est_throughput=%u",
1884 MAC2STR(current_bss->bssid),
1885 current_bss->freq, current_bss->level,
1886 current_bss->snr, current_bss->est_throughput);
1887 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1888 " freq=%d level=%d snr=%d est_throughput=%u",
1889 MAC2STR(selected->bssid), selected->freq, selected->level,
1890 selected->snr, selected->est_throughput);
1891
1892 if (wpa_s->current_ssid->bssid_set &&
1893 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1894 0) {
1895 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1896 "has preferred BSSID");
1897 return 1;
1898 }
1899
1900 cur_level = current_bss->level;
1901 cur_est = current_bss->est_throughput;
1902 sel_est = selected->est_throughput;
1903
1904 /*
1905 * Try to poll the signal from the driver since this will allow to get
1906 * more accurate values. In some cases, there can be big differences
1907 * between the RSSI of the Probe Response frames of the AP we are
1908 * associated with and the Beacon frames we hear from the same AP after
1909 * association. This can happen, e.g., when there are two antennas that
1910 * hear the AP very differently. If the driver chooses to hear the
1911 * Probe Response frames during the scan on the "bad" antenna because
1912 * it wants to save power, but knows to choose the other antenna after
1913 * association, we will hear our AP with a low RSSI as part of the
1914 * scan even when we can hear it decently on the other antenna. To cope
1915 * with this, ask the driver to teach us how it hears the AP. Also, the
1916 * scan results may be a bit old, since we can very quickly get fresh
1917 * information about our currently associated AP.
1918 */
1919 if (wpa_drv_signal_poll(wpa_s, &si) == 0 &&
1920 (si.avg_beacon_signal || si.avg_signal)) {
1921 cur_level = si.avg_beacon_signal ? si.avg_beacon_signal :
1922 si.avg_signal;
1923 cur_snr = wpas_get_snr_signal_info(si.frequency, cur_level,
1924 si.current_noise);
1925
1926 cur_est = wpas_get_est_throughput_from_bss_snr(wpa_s,
1927 current_bss,
1928 cur_snr);
1929 wpa_dbg(wpa_s, MSG_DEBUG,
1930 "Using signal poll values for the current BSS: level=%d snr=%d est_throughput=%u",
1931 cur_level, cur_snr, cur_est);
1932 }
1933
1934 if (sel_est > cur_est + 5000) {
1935 wpa_dbg(wpa_s, MSG_DEBUG,
1936 "Allow reassociation - selected BSS has better estimated throughput");
1937 return 1;
1938 }
1939
1940 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
1941
1942 if (cur_level < 0 && cur_level > selected->level + to_5ghz * 2 &&
1943 sel_est < cur_est * 1.2) {
1944 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1945 "signal level");
1946 return 0;
1947 }
1948
1949 if (cur_est > sel_est + 5000) {
1950 wpa_dbg(wpa_s, MSG_DEBUG,
1951 "Skip roam - Current BSS has better estimated throughput");
1952 return 0;
1953 }
1954
1955 if (cur_snr > GREAT_SNR) {
1956 wpa_dbg(wpa_s, MSG_DEBUG,
1957 "Skip roam - Current BSS has good SNR (%u > %u)",
1958 cur_snr, GREAT_SNR);
1959 return 0;
1960 }
1961
1962 if (cur_level < -85) /* ..-86 dBm */
1963 min_diff = 1;
1964 else if (cur_level < -80) /* -85..-81 dBm */
1965 min_diff = 2;
1966 else if (cur_level < -75) /* -80..-76 dBm */
1967 min_diff = 3;
1968 else if (cur_level < -70) /* -75..-71 dBm */
1969 min_diff = 4;
1970 else if (cur_level < 0) /* -70..-1 dBm */
1971 min_diff = 5;
1972 else /* unspecified units (not in dBm) */
1973 min_diff = 2;
1974
1975 if (cur_est > sel_est * 1.5)
1976 min_diff += 10;
1977 else if (cur_est > sel_est * 1.2)
1978 min_diff += 5;
1979 else if (cur_est > sel_est * 1.1)
1980 min_diff += 2;
1981 else if (cur_est > sel_est)
1982 min_diff++;
1983 else if (sel_est > cur_est * 1.5)
1984 min_diff -= 10;
1985 else if (sel_est > cur_est * 1.2)
1986 min_diff -= 5;
1987 else if (sel_est > cur_est * 1.1)
1988 min_diff -= 2;
1989 else if (sel_est > cur_est)
1990 min_diff--;
1991
1992 if (to_5ghz)
1993 min_diff -= 2;
1994 diff = selected->level - cur_level;
1995 if (diff < min_diff) {
1996 wpa_dbg(wpa_s, MSG_DEBUG,
1997 "Skip roam - too small difference in signal level (%d < %d)",
1998 diff, min_diff);
1999 ret = 0;
2000 } else {
2001 wpa_dbg(wpa_s, MSG_DEBUG,
2002 "Allow reassociation due to difference in signal level (%d >= %d)",
2003 diff, min_diff);
2004 ret = 1;
2005 }
2006 wpa_msg_ctrl(wpa_s, MSG_INFO, "%scur_bssid=" MACSTR
2007 " cur_freq=%d cur_level=%d cur_est=%d sel_bssid=" MACSTR
2008 " sel_freq=%d sel_level=%d sel_est=%d",
2009 ret ? WPA_EVENT_DO_ROAM : WPA_EVENT_SKIP_ROAM,
2010 MAC2STR(current_bss->bssid),
2011 current_bss->freq, cur_level, cur_est,
2012 MAC2STR(selected->bssid),
2013 selected->freq, selected->level, sel_est);
2014 return ret;
2015 }
2016
2017 #endif /* CONFIG_NO_ROAMING */
2018
2019
wpa_supplicant_need_to_roam(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)2020 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
2021 struct wpa_bss *selected,
2022 struct wpa_ssid *ssid)
2023 {
2024 struct wpa_bss *current_bss = NULL;
2025
2026 if (wpa_s->reassociate)
2027 return 1; /* explicit request to reassociate */
2028 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2029 return 1; /* we are not associated; continue */
2030 if (wpa_s->current_ssid == NULL)
2031 return 1; /* unknown current SSID */
2032 if (wpa_s->current_ssid != ssid)
2033 return 1; /* different network block */
2034
2035 if (wpas_driver_bss_selection(wpa_s))
2036 return 0; /* Driver-based roaming */
2037
2038 if (wpa_s->current_ssid->ssid)
2039 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
2040 wpa_s->current_ssid->ssid,
2041 wpa_s->current_ssid->ssid_len);
2042 if (!current_bss)
2043 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
2044
2045 if (!current_bss)
2046 return 1; /* current BSS not seen in scan results */
2047
2048 if (current_bss == selected)
2049 return 0;
2050
2051 if (selected->last_update_idx > current_bss->last_update_idx)
2052 return 1; /* current BSS not seen in the last scan */
2053
2054 #ifndef CONFIG_NO_ROAMING
2055 return wpa_supplicant_need_to_roam_within_ess(wpa_s, current_bss,
2056 selected);
2057 #else /* CONFIG_NO_ROAMING */
2058 return 0;
2059 #endif /* CONFIG_NO_ROAMING */
2060 }
2061
2062
2063 /*
2064 * Return a negative value if no scan results could be fetched or if scan
2065 * results should not be shared with other virtual interfaces.
2066 * Return 0 if scan results were fetched and may be shared with other
2067 * interfaces.
2068 * Return 1 if scan results may be shared with other virtual interfaces but may
2069 * not trigger any operations.
2070 * Return 2 if the interface was removed and cannot be used.
2071 */
_wpa_supplicant_event_scan_results(struct wpa_supplicant * wpa_s,union wpa_event_data * data,int own_request,int update_only)2072 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
2073 union wpa_event_data *data,
2074 int own_request, int update_only)
2075 {
2076 struct wpa_scan_results *scan_res = NULL;
2077 int ret = 0;
2078 int ap = 0;
2079 #ifndef CONFIG_NO_RANDOM_POOL
2080 size_t i, num;
2081 #endif /* CONFIG_NO_RANDOM_POOL */
2082
2083 #ifdef CONFIG_AP
2084 if (wpa_s->ap_iface)
2085 ap = 1;
2086 #endif /* CONFIG_AP */
2087
2088 wpa_supplicant_notify_scanning(wpa_s, 0);
2089
2090 scan_res = wpa_supplicant_get_scan_results(wpa_s,
2091 data ? &data->scan_info :
2092 NULL, 1);
2093 if (scan_res == NULL) {
2094 if (wpa_s->conf->ap_scan == 2 || ap ||
2095 wpa_s->scan_res_handler == scan_only_handler)
2096 return -1;
2097 if (!own_request)
2098 return -1;
2099 if (data && data->scan_info.external_scan)
2100 return -1;
2101 if (wpa_s->scan_res_fail_handler) {
2102 void (*handler)(struct wpa_supplicant *wpa_s);
2103
2104 handler = wpa_s->scan_res_fail_handler;
2105 wpa_s->scan_res_fail_handler = NULL;
2106 handler(wpa_s);
2107 } else {
2108 wpa_dbg(wpa_s, MSG_DEBUG,
2109 "Failed to get scan results - try scanning again");
2110 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
2111 }
2112
2113 ret = -1;
2114 goto scan_work_done;
2115 }
2116
2117 #ifndef CONFIG_NO_RANDOM_POOL
2118 num = scan_res->num;
2119 if (num > 10)
2120 num = 10;
2121 for (i = 0; i < num; i++) {
2122 u8 buf[5];
2123 struct wpa_scan_res *res = scan_res->res[i];
2124 buf[0] = res->bssid[5];
2125 buf[1] = res->qual & 0xff;
2126 buf[2] = res->noise & 0xff;
2127 buf[3] = res->level & 0xff;
2128 buf[4] = res->tsf & 0xff;
2129 random_add_randomness(buf, sizeof(buf));
2130 }
2131 #endif /* CONFIG_NO_RANDOM_POOL */
2132
2133 if (update_only) {
2134 ret = 1;
2135 goto scan_work_done;
2136 }
2137
2138 if (own_request && wpa_s->scan_res_handler &&
2139 !(data && data->scan_info.external_scan)) {
2140 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
2141 struct wpa_scan_results *scan_res);
2142
2143 scan_res_handler = wpa_s->scan_res_handler;
2144 wpa_s->scan_res_handler = NULL;
2145 scan_res_handler(wpa_s, scan_res);
2146 ret = 1;
2147 goto scan_work_done;
2148 }
2149
2150 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
2151 wpa_s->own_scan_running,
2152 data ? data->scan_info.external_scan : 0);
2153 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
2154 wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
2155 own_request && !(data && data->scan_info.external_scan)) {
2156 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
2157 wpa_s->manual_scan_id);
2158 wpa_s->manual_scan_use_id = 0;
2159 } else {
2160 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
2161 }
2162 wpas_notify_scan_results(wpa_s);
2163
2164 wpas_notify_scan_done(wpa_s, 1);
2165
2166 if (ap) {
2167 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
2168 #ifdef CONFIG_AP
2169 if (wpa_s->ap_iface->scan_cb)
2170 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
2171 #endif /* CONFIG_AP */
2172 goto scan_work_done;
2173 }
2174
2175 if (data && data->scan_info.external_scan) {
2176 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
2177 wpa_scan_results_free(scan_res);
2178 return 0;
2179 }
2180
2181 if (wnm_scan_process(wpa_s, 1) > 0)
2182 goto scan_work_done;
2183
2184 if (sme_proc_obss_scan(wpa_s) > 0)
2185 goto scan_work_done;
2186
2187 if (own_request && data &&
2188 wpas_beacon_rep_scan_process(wpa_s, scan_res, &data->scan_info) > 0)
2189 goto scan_work_done;
2190
2191 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
2192 goto scan_work_done;
2193
2194 if (autoscan_notify_scan(wpa_s, scan_res))
2195 goto scan_work_done;
2196
2197 if (wpa_s->disconnected) {
2198 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2199 goto scan_work_done;
2200 }
2201
2202 if (!wpas_driver_bss_selection(wpa_s) &&
2203 bgscan_notify_scan(wpa_s, scan_res) == 1)
2204 goto scan_work_done;
2205
2206 wpas_wps_update_ap_info(wpa_s, scan_res);
2207
2208 if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
2209 wpa_s->wpa_state < WPA_COMPLETED)
2210 goto scan_work_done;
2211
2212 wpa_scan_results_free(scan_res);
2213
2214 if (own_request && wpa_s->scan_work) {
2215 struct wpa_radio_work *work = wpa_s->scan_work;
2216 wpa_s->scan_work = NULL;
2217 radio_work_done(work);
2218 }
2219
2220 os_free(wpa_s->last_scan_freqs);
2221 wpa_s->last_scan_freqs = NULL;
2222 wpa_s->num_last_scan_freqs = 0;
2223 if (own_request && data &&
2224 data->scan_info.freqs && data->scan_info.num_freqs) {
2225 wpa_s->last_scan_freqs = os_malloc(sizeof(int) *
2226 data->scan_info.num_freqs);
2227 if (wpa_s->last_scan_freqs) {
2228 os_memcpy(wpa_s->last_scan_freqs,
2229 data->scan_info.freqs,
2230 sizeof(int) * data->scan_info.num_freqs);
2231 wpa_s->num_last_scan_freqs = data->scan_info.num_freqs;
2232 }
2233 }
2234
2235 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
2236
2237 scan_work_done:
2238 wpa_scan_results_free(scan_res);
2239 if (own_request && wpa_s->scan_work) {
2240 struct wpa_radio_work *work = wpa_s->scan_work;
2241 wpa_s->scan_work = NULL;
2242 radio_work_done(work);
2243 }
2244 return ret;
2245 }
2246
2247
wpas_select_network_from_last_scan(struct wpa_supplicant * wpa_s,int new_scan,int own_request)2248 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
2249 int new_scan, int own_request)
2250 {
2251 struct wpa_bss *selected;
2252 struct wpa_ssid *ssid = NULL;
2253 int time_to_reenable = wpas_reenabled_network_time(wpa_s);
2254
2255 if (time_to_reenable > 0) {
2256 wpa_dbg(wpa_s, MSG_DEBUG,
2257 "Postpone network selection by %d seconds since all networks are disabled",
2258 time_to_reenable);
2259 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2260 eloop_register_timeout(time_to_reenable, 0,
2261 wpas_network_reenabled, wpa_s, NULL);
2262 return 0;
2263 }
2264
2265 if (wpa_s->p2p_mgmt)
2266 return 0; /* no normal connection on p2p_mgmt interface */
2267
2268 wpa_s->owe_transition_search = 0;
2269 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
2270
2271 #ifdef CONFIG_MESH
2272 if (wpa_s->ifmsh) {
2273 wpa_msg(wpa_s, MSG_INFO,
2274 "Avoiding join because we already joined a mesh group");
2275 return 0;
2276 }
2277 #endif /* CONFIG_MESH */
2278
2279 if (selected) {
2280 int skip;
2281 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
2282 if (skip) {
2283 if (new_scan)
2284 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2285 return 0;
2286 }
2287
2288 wpa_s->suitable_network++;
2289
2290 if (ssid != wpa_s->current_ssid &&
2291 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2292 wpa_s->own_disconnect_req = 1;
2293 wpa_supplicant_deauthenticate(
2294 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2295 }
2296
2297 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
2298 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
2299 return -1;
2300 }
2301 if (new_scan)
2302 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2303 /*
2304 * Do not allow other virtual radios to trigger operations based
2305 * on these scan results since we do not want them to start
2306 * other associations at the same time.
2307 */
2308 return 1;
2309 } else {
2310 wpa_s->no_suitable_network++;
2311 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
2312 ssid = wpa_supplicant_pick_new_network(wpa_s);
2313 if (ssid) {
2314 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
2315 wpa_supplicant_associate(wpa_s, NULL, ssid);
2316 if (new_scan)
2317 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2318 } else if (own_request) {
2319 /*
2320 * No SSID found. If SCAN results are as a result of
2321 * own scan request and not due to a scan request on
2322 * another shared interface, try another scan.
2323 */
2324 int timeout_sec = wpa_s->scan_interval;
2325 int timeout_usec = 0;
2326 #ifdef CONFIG_P2P
2327 int res;
2328
2329 res = wpas_p2p_scan_no_go_seen(wpa_s);
2330 if (res == 2)
2331 return 2;
2332 if (res == 1)
2333 return 0;
2334
2335 if (wpa_s->p2p_in_provisioning ||
2336 wpa_s->show_group_started ||
2337 wpa_s->p2p_in_invitation) {
2338 /*
2339 * Use shorter wait during P2P Provisioning
2340 * state and during P2P join-a-group operation
2341 * to speed up group formation.
2342 */
2343 timeout_sec = 0;
2344 timeout_usec = 250000;
2345 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2346 timeout_usec);
2347 return 0;
2348 }
2349 #endif /* CONFIG_P2P */
2350 #ifdef CONFIG_INTERWORKING
2351 if (wpa_s->conf->auto_interworking &&
2352 wpa_s->conf->interworking &&
2353 wpa_s->conf->cred) {
2354 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
2355 "start ANQP fetch since no matching "
2356 "networks found");
2357 wpa_s->network_select = 1;
2358 wpa_s->auto_network_select = 1;
2359 interworking_start_fetch_anqp(wpa_s);
2360 return 1;
2361 }
2362 #endif /* CONFIG_INTERWORKING */
2363 #ifdef CONFIG_WPS
2364 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
2365 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
2366 timeout_sec = 0;
2367 timeout_usec = 500000;
2368 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2369 timeout_usec);
2370 return 0;
2371 }
2372 #endif /* CONFIG_WPS */
2373 #ifdef CONFIG_OWE
2374 if (wpa_s->owe_transition_search) {
2375 wpa_dbg(wpa_s, MSG_DEBUG,
2376 "OWE: Use shorter wait during transition mode search");
2377 timeout_sec = 0;
2378 timeout_usec = 500000;
2379 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2380 timeout_usec);
2381 return 0;
2382 }
2383 #endif /* CONFIG_OWE */
2384 if (wpa_supplicant_req_sched_scan(wpa_s))
2385 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2386 timeout_usec);
2387
2388 wpa_msg_ctrl(wpa_s, MSG_INFO,
2389 WPA_EVENT_NETWORK_NOT_FOUND);
2390 }
2391 }
2392 return 0;
2393 }
2394
2395
wpa_supplicant_event_scan_results(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2396 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
2397 union wpa_event_data *data)
2398 {
2399 struct wpa_supplicant *ifs;
2400 int res;
2401
2402 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1, 0);
2403 if (res == 2) {
2404 /*
2405 * Interface may have been removed, so must not dereference
2406 * wpa_s after this.
2407 */
2408 return 1;
2409 }
2410
2411 if (res < 0) {
2412 /*
2413 * If no scan results could be fetched, then no need to
2414 * notify those interfaces that did not actually request
2415 * this scan. Similarly, if scan results started a new operation on this
2416 * interface, do not notify other interfaces to avoid concurrent
2417 * operations during a connection attempt.
2418 */
2419 return 0;
2420 }
2421
2422 /*
2423 * Check other interfaces to see if they share the same radio. If
2424 * so, they get updated with this same scan info.
2425 */
2426 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
2427 radio_list) {
2428 if (ifs != wpa_s) {
2429 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
2430 "sibling", ifs->ifname);
2431 res = _wpa_supplicant_event_scan_results(ifs, data, 0,
2432 res > 0);
2433 if (res < 0)
2434 return 0;
2435 }
2436 }
2437
2438 return 0;
2439 }
2440
2441 #endif /* CONFIG_NO_SCAN_PROCESSING */
2442
2443
wpa_supplicant_fast_associate(struct wpa_supplicant * wpa_s)2444 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
2445 {
2446 #ifdef CONFIG_NO_SCAN_PROCESSING
2447 return -1;
2448 #else /* CONFIG_NO_SCAN_PROCESSING */
2449 struct os_reltime now;
2450
2451 wpa_s->ignore_post_flush_scan_res = 0;
2452
2453 if (wpa_s->last_scan_res_used == 0)
2454 return -1;
2455
2456 os_get_reltime(&now);
2457 if (os_reltime_expired(&now, &wpa_s->last_scan,
2458 wpa_s->conf->scan_res_valid_for_connect)) {
2459 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
2460 return -1;
2461 }
2462
2463 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
2464 #endif /* CONFIG_NO_SCAN_PROCESSING */
2465 }
2466
2467 #ifdef CONFIG_WNM
2468
wnm_bss_keep_alive(void * eloop_ctx,void * sock_ctx)2469 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
2470 {
2471 struct wpa_supplicant *wpa_s = eloop_ctx;
2472
2473 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2474 return;
2475
2476 if (!wpa_s->no_keep_alive) {
2477 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
2478 MAC2STR(wpa_s->bssid));
2479 /* TODO: could skip this if normal data traffic has been sent */
2480 /* TODO: Consider using some more appropriate data frame for
2481 * this */
2482 if (wpa_s->l2)
2483 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
2484 (u8 *) "", 0);
2485 }
2486
2487 #ifdef CONFIG_SME
2488 if (wpa_s->sme.bss_max_idle_period) {
2489 unsigned int msec;
2490 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
2491 if (msec > 100)
2492 msec -= 100;
2493 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
2494 wnm_bss_keep_alive, wpa_s, NULL);
2495 }
2496 #endif /* CONFIG_SME */
2497 }
2498
2499
wnm_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)2500 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
2501 const u8 *ies, size_t ies_len)
2502 {
2503 struct ieee802_11_elems elems;
2504
2505 if (ies == NULL)
2506 return;
2507
2508 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
2509 return;
2510
2511 #ifdef CONFIG_SME
2512 if (elems.bss_max_idle_period) {
2513 unsigned int msec;
2514 wpa_s->sme.bss_max_idle_period =
2515 WPA_GET_LE16(elems.bss_max_idle_period);
2516 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
2517 "TU)%s", wpa_s->sme.bss_max_idle_period,
2518 (elems.bss_max_idle_period[2] & 0x01) ?
2519 " (protected keep-live required)" : "");
2520 if (wpa_s->sme.bss_max_idle_period == 0)
2521 wpa_s->sme.bss_max_idle_period = 1;
2522 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
2523 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
2524 /* msec times 1000 */
2525 msec = wpa_s->sme.bss_max_idle_period * 1024;
2526 if (msec > 100)
2527 msec -= 100;
2528 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
2529 wnm_bss_keep_alive, wpa_s,
2530 NULL);
2531 }
2532 }
2533 #endif /* CONFIG_SME */
2534 }
2535
2536 #endif /* CONFIG_WNM */
2537
2538
wnm_bss_keep_alive_deinit(struct wpa_supplicant * wpa_s)2539 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
2540 {
2541 #ifdef CONFIG_WNM
2542 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
2543 #endif /* CONFIG_WNM */
2544 }
2545
2546
2547 #ifdef CONFIG_INTERWORKING
2548
wpas_qos_map_set(struct wpa_supplicant * wpa_s,const u8 * qos_map,size_t len)2549 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
2550 size_t len)
2551 {
2552 int res;
2553
2554 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
2555 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
2556 if (res) {
2557 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
2558 }
2559
2560 return res;
2561 }
2562
2563
interworking_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)2564 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
2565 const u8 *ies, size_t ies_len)
2566 {
2567 struct ieee802_11_elems elems;
2568
2569 if (ies == NULL)
2570 return;
2571
2572 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
2573 return;
2574
2575 if (elems.qos_map_set) {
2576 wpas_qos_map_set(wpa_s, elems.qos_map_set,
2577 elems.qos_map_set_len);
2578 }
2579 }
2580
2581 #endif /* CONFIG_INTERWORKING */
2582
2583
multi_ap_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)2584 static void multi_ap_process_assoc_resp(struct wpa_supplicant *wpa_s,
2585 const u8 *ies, size_t ies_len)
2586 {
2587 struct ieee802_11_elems elems;
2588 const u8 *map_sub_elem, *pos;
2589 size_t len;
2590
2591 wpa_s->multi_ap_ie = 0;
2592
2593 if (!ies ||
2594 ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed ||
2595 !elems.multi_ap || elems.multi_ap_len < 7)
2596 return;
2597
2598 pos = elems.multi_ap + 4;
2599 len = elems.multi_ap_len - 4;
2600
2601 map_sub_elem = get_ie(pos, len, MULTI_AP_SUB_ELEM_TYPE);
2602 if (!map_sub_elem || map_sub_elem[1] < 1)
2603 return;
2604
2605 wpa_s->multi_ap_backhaul = !!(map_sub_elem[2] & MULTI_AP_BACKHAUL_BSS);
2606 wpa_s->multi_ap_fronthaul = !!(map_sub_elem[2] &
2607 MULTI_AP_FRONTHAUL_BSS);
2608 wpa_s->multi_ap_ie = 1;
2609 }
2610
2611
multi_ap_set_4addr_mode(struct wpa_supplicant * wpa_s)2612 static void multi_ap_set_4addr_mode(struct wpa_supplicant *wpa_s)
2613 {
2614 if (!wpa_s->current_ssid ||
2615 !wpa_s->current_ssid->multi_ap_backhaul_sta)
2616 return;
2617
2618 if (!wpa_s->multi_ap_ie) {
2619 wpa_printf(MSG_INFO,
2620 "AP does not include valid Multi-AP element");
2621 goto fail;
2622 }
2623
2624 if (!wpa_s->multi_ap_backhaul) {
2625 if (wpa_s->multi_ap_fronthaul &&
2626 wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
2627 wpa_printf(MSG_INFO,
2628 "WPS active, accepting fronthaul-only BSS");
2629 /* Don't set 4addr mode in this case, so just return */
2630 return;
2631 }
2632 wpa_printf(MSG_INFO, "AP doesn't support backhaul BSS");
2633 goto fail;
2634 }
2635
2636 if (wpa_drv_set_4addr_mode(wpa_s, 1) < 0) {
2637 wpa_printf(MSG_ERROR, "Failed to set 4addr mode");
2638 goto fail;
2639 }
2640 wpa_s->enabled_4addr_mode = 1;
2641 return;
2642
2643 fail:
2644 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2645 }
2646
2647
2648 #ifdef CONFIG_FST
wpas_fst_update_mbie(struct wpa_supplicant * wpa_s,const u8 * ie,size_t ie_len)2649 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
2650 const u8 *ie, size_t ie_len)
2651 {
2652 struct mb_ies_info mb_ies;
2653
2654 if (!ie || !ie_len || !wpa_s->fst)
2655 return -ENOENT;
2656
2657 os_memset(&mb_ies, 0, sizeof(mb_ies));
2658
2659 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
2660 size_t len;
2661
2662 len = 2 + ie[1];
2663 if (len > ie_len) {
2664 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
2665 ie, ie_len);
2666 break;
2667 }
2668
2669 if (ie[0] == WLAN_EID_MULTI_BAND) {
2670 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
2671 (unsigned int) len);
2672 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
2673 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
2674 mb_ies.nof_ies++;
2675 }
2676
2677 ie_len -= len;
2678 ie += len;
2679 }
2680
2681 if (mb_ies.nof_ies > 0) {
2682 wpabuf_free(wpa_s->received_mb_ies);
2683 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
2684 return 0;
2685 }
2686
2687 return -ENOENT;
2688 }
2689 #endif /* CONFIG_FST */
2690
2691
wpa_supplicant_use_own_rsne_params(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2692 static int wpa_supplicant_use_own_rsne_params(struct wpa_supplicant *wpa_s,
2693 union wpa_event_data *data)
2694 {
2695 int sel;
2696 const u8 *p;
2697 int l, len;
2698 bool found = false;
2699 struct wpa_ie_data ie;
2700 struct wpa_ssid *ssid = wpa_s->current_ssid;
2701 struct wpa_bss *bss = wpa_s->current_bss;
2702 int pmf;
2703
2704 if (!ssid)
2705 return 0;
2706
2707 p = data->assoc_info.req_ies;
2708 l = data->assoc_info.req_ies_len;
2709
2710 while (p && l >= 2) {
2711 len = p[1] + 2;
2712 if (len > l) {
2713 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2714 p, l);
2715 break;
2716 }
2717 if (((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2718 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
2719 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
2720 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
2721 (p[0] == WLAN_EID_RSN && p[1] >= 2))) {
2722 found = true;
2723 break;
2724 }
2725 l -= len;
2726 p += len;
2727 }
2728
2729 if (!found || wpa_parse_wpa_ie(p, len, &ie) < 0)
2730 return 0;
2731
2732 wpa_hexdump(MSG_DEBUG,
2733 "WPA: Update cipher suite selection based on IEs in driver-generated WPA/RSNE in AssocReq",
2734 p, l);
2735
2736 /* Update proto from (Re)Association Request frame info */
2737 wpa_s->wpa_proto = ie.proto;
2738 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, wpa_s->wpa_proto);
2739 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED,
2740 !!(wpa_s->wpa_proto &
2741 (WPA_PROTO_RSN | WPA_PROTO_OSEN)));
2742
2743 /* Update AKMP suite from (Re)Association Request frame info */
2744 sel = ie.key_mgmt;
2745 if (ssid->key_mgmt)
2746 sel &= ssid->key_mgmt;
2747
2748 wpa_dbg(wpa_s, MSG_DEBUG,
2749 "WPA: AP key_mgmt 0x%x network key_mgmt 0x%x; available key_mgmt 0x%x",
2750 ie.key_mgmt, ssid->key_mgmt, sel);
2751 if (ie.key_mgmt && !sel) {
2752 wpa_supplicant_deauthenticate(
2753 wpa_s, WLAN_REASON_AKMP_NOT_VALID);
2754 return -1;
2755 }
2756
2757 wpa_s->key_mgmt = ie.key_mgmt;
2758 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
2759 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT %s and proto %d",
2760 wpa_key_mgmt_txt(wpa_s->key_mgmt, wpa_s->wpa_proto),
2761 wpa_s->wpa_proto);
2762
2763 /* Update pairwise cipher from (Re)Association Request frame info */
2764 sel = ie.pairwise_cipher;
2765 if (ssid->pairwise_cipher)
2766 sel &= ssid->pairwise_cipher;
2767
2768 wpa_dbg(wpa_s, MSG_DEBUG,
2769 "WPA: AP pairwise cipher 0x%x network pairwise cipher 0x%x; available pairwise cipher 0x%x",
2770 ie.pairwise_cipher, ssid->pairwise_cipher, sel);
2771 if (ie.pairwise_cipher && !sel) {
2772 wpa_supplicant_deauthenticate(
2773 wpa_s, WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID);
2774 return -1;
2775 }
2776
2777 wpa_s->pairwise_cipher = ie.pairwise_cipher;
2778 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
2779 wpa_s->pairwise_cipher);
2780 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK %s",
2781 wpa_cipher_txt(wpa_s->pairwise_cipher));
2782
2783 /* Update other parameters based on AP's WPA IE/RSNE, if available */
2784 if (!bss) {
2785 wpa_dbg(wpa_s, MSG_DEBUG,
2786 "WPA: current_bss == NULL - skip AP IE check");
2787 return 0;
2788 }
2789
2790 /* Update GTK and IGTK from AP's RSNE */
2791 found = false;
2792
2793 if (wpa_s->wpa_proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)) {
2794 const u8 *bss_rsn;
2795
2796 bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
2797 if (bss_rsn) {
2798 p = bss_rsn;
2799 len = 2 + bss_rsn[1];
2800 found = true;
2801 }
2802 } else if (wpa_s->wpa_proto & WPA_PROTO_WPA) {
2803 const u8 *bss_wpa;
2804
2805 bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
2806 if (bss_wpa) {
2807 p = bss_wpa;
2808 len = 2 + bss_wpa[1];
2809 found = true;
2810 }
2811 }
2812
2813 if (!found || wpa_parse_wpa_ie(p, len, &ie) < 0)
2814 return 0;
2815
2816 pmf = wpas_get_ssid_pmf(wpa_s, ssid);
2817 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
2818 pmf == MGMT_FRAME_PROTECTION_REQUIRED) {
2819 /* AP does not support MFP, local configuration requires it */
2820 wpa_supplicant_deauthenticate(
2821 wpa_s, WLAN_REASON_INVALID_RSN_IE_CAPAB);
2822 return -1;
2823 }
2824 if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
2825 pmf == NO_MGMT_FRAME_PROTECTION) {
2826 /* AP requires MFP, local configuration disables it */
2827 wpa_supplicant_deauthenticate(
2828 wpa_s, WLAN_REASON_INVALID_RSN_IE_CAPAB);
2829 return -1;
2830 }
2831
2832 /* Update PMF from local configuration now that MFP validation was done
2833 * above */
2834 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, pmf);
2835
2836 /* Update GTK from AP's RSNE */
2837 sel = ie.group_cipher;
2838 if (ssid->group_cipher)
2839 sel &= ssid->group_cipher;
2840
2841 wpa_dbg(wpa_s, MSG_DEBUG,
2842 "WPA: AP group cipher 0x%x network group cipher 0x%x; available group cipher 0x%x",
2843 ie.group_cipher, ssid->group_cipher, sel);
2844 if (ie.group_cipher && !sel) {
2845 wpa_supplicant_deauthenticate(
2846 wpa_s, WLAN_REASON_GROUP_CIPHER_NOT_VALID);
2847 return -1;
2848 }
2849
2850 wpa_s->group_cipher = ie.group_cipher;
2851 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
2852 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK %s",
2853 wpa_cipher_txt(wpa_s->group_cipher));
2854
2855 /* Update IGTK from AP RSN IE */
2856 sel = ie.mgmt_group_cipher;
2857 if (ssid->group_mgmt_cipher)
2858 sel &= ssid->group_mgmt_cipher;
2859
2860 wpa_dbg(wpa_s, MSG_DEBUG,
2861 "WPA: AP mgmt_group_cipher 0x%x network mgmt_group_cipher 0x%x; available mgmt_group_cipher 0x%x",
2862 ie.mgmt_group_cipher, ssid->group_mgmt_cipher, sel);
2863
2864 if (pmf == NO_MGMT_FRAME_PROTECTION ||
2865 !(ie.capabilities & WPA_CAPABILITY_MFPC)) {
2866 wpa_dbg(wpa_s, MSG_DEBUG,
2867 "WPA: STA/AP is not MFP capable; AP RSNE caps 0x%x",
2868 ie.capabilities);
2869 ie.mgmt_group_cipher = 0;
2870 }
2871
2872 if (ie.mgmt_group_cipher && !sel) {
2873 wpa_supplicant_deauthenticate(
2874 wpa_s, WLAN_REASON_CIPHER_SUITE_REJECTED);
2875 return -1;
2876 }
2877
2878 wpa_s->mgmt_group_cipher = ie.mgmt_group_cipher;
2879 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
2880 wpa_s->mgmt_group_cipher);
2881 if (wpa_s->mgmt_group_cipher)
2882 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher %s",
2883 wpa_cipher_txt(wpa_s->mgmt_group_cipher));
2884 else
2885 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher");
2886
2887 return 0;
2888 }
2889
2890
wpa_supplicant_event_associnfo(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2891 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
2892 union wpa_event_data *data)
2893 {
2894 int l, len, found = 0, found_x = 0, wpa_found, rsn_found;
2895 const u8 *p;
2896 u8 bssid[ETH_ALEN];
2897 bool bssid_known;
2898
2899 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
2900 bssid_known = wpa_drv_get_bssid(wpa_s, bssid) == 0;
2901 if (data->assoc_info.req_ies)
2902 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
2903 data->assoc_info.req_ies_len);
2904 if (data->assoc_info.resp_ies) {
2905 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
2906 data->assoc_info.resp_ies_len);
2907 #ifdef CONFIG_TDLS
2908 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
2909 data->assoc_info.resp_ies_len);
2910 #endif /* CONFIG_TDLS */
2911 #ifdef CONFIG_WNM
2912 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2913 data->assoc_info.resp_ies_len);
2914 #endif /* CONFIG_WNM */
2915 #ifdef CONFIG_INTERWORKING
2916 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2917 data->assoc_info.resp_ies_len);
2918 #endif /* CONFIG_INTERWORKING */
2919 if (wpa_s->hw_capab == CAPAB_VHT &&
2920 get_ie(data->assoc_info.resp_ies,
2921 data->assoc_info.resp_ies_len, WLAN_EID_VHT_CAP))
2922 wpa_s->ieee80211ac = 1;
2923
2924 multi_ap_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2925 data->assoc_info.resp_ies_len);
2926 }
2927 if (data->assoc_info.beacon_ies)
2928 wpa_hexdump(MSG_DEBUG, "beacon_ies",
2929 data->assoc_info.beacon_ies,
2930 data->assoc_info.beacon_ies_len);
2931 if (data->assoc_info.freq)
2932 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
2933 data->assoc_info.freq);
2934
2935 wpa_s->connection_set = 0;
2936 if (data->assoc_info.req_ies && data->assoc_info.resp_ies) {
2937 struct ieee802_11_elems req_elems, resp_elems;
2938 memset(&resp_elems, 0, sizeof(struct ieee802_11_elems));
2939
2940 if (ieee802_11_parse_elems(data->assoc_info.req_ies,
2941 data->assoc_info.req_ies_len,
2942 &req_elems, 0) != ParseFailed &&
2943 ieee802_11_parse_elems(data->assoc_info.resp_ies,
2944 data->assoc_info.resp_ies_len,
2945 &resp_elems, 0) != ParseFailed) {
2946 wpa_s->connection_set = 1;
2947 wpa_s->connection_ht = req_elems.ht_capabilities &&
2948 resp_elems.ht_capabilities;
2949 /* Do not include subset of VHT on 2.4 GHz vendor
2950 * extension in consideration for reporting VHT
2951 * association. */
2952 wpa_s->connection_vht = req_elems.vht_capabilities &&
2953 resp_elems.vht_capabilities &&
2954 (!data->assoc_info.freq ||
2955 wpas_freq_to_band(data->assoc_info.freq) !=
2956 BAND_2_4_GHZ);
2957 wpa_s->connection_he = req_elems.he_capabilities &&
2958 resp_elems.he_capabilities;
2959 if (!wpa_s->connection_ht && !wpa_s->connection_vht &&
2960 !wpa_s->connection_he) {
2961 wpa_s->connection_a = 0;
2962 wpa_s->connection_b = 0;
2963 wpa_s->connection_g = 0;
2964 if (wpas_freq_to_band(data->assoc_info.freq) == BAND_5_GHZ) {
2965 wpa_s->connection_a = 1;
2966 } else if (wpas_freq_to_band(data->assoc_info.freq) ==
2967 BAND_2_4_GHZ) {
2968 if (supp_rates_11b_only(&resp_elems)) {
2969 wpa_s->connection_b = 1;
2970 } else {
2971 wpa_s->connection_g = 1;
2972 }
2973 }
2974 }
2975 }
2976 }
2977
2978 p = data->assoc_info.req_ies;
2979 l = data->assoc_info.req_ies_len;
2980
2981 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
2982 while (p && l >= 2) {
2983 len = p[1] + 2;
2984 if (len > l) {
2985 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2986 p, l);
2987 break;
2988 }
2989 if (!found &&
2990 ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2991 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
2992 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
2993 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
2994 (p[0] == WLAN_EID_RSN && p[1] >= 2))) {
2995 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
2996 break;
2997 found = 1;
2998 wpa_find_assoc_pmkid(wpa_s);
2999 }
3000 if (!found_x && p[0] == WLAN_EID_RSNX) {
3001 if (wpa_sm_set_assoc_rsnxe(wpa_s->wpa, p, len))
3002 break;
3003 found_x = 1;
3004 }
3005 l -= len;
3006 p += len;
3007 }
3008 if (!found && data->assoc_info.req_ies)
3009 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
3010 if (!found_x && data->assoc_info.req_ies)
3011 wpa_sm_set_assoc_rsnxe(wpa_s->wpa, NULL, 0);
3012
3013 #ifdef CONFIG_FILS
3014 #ifdef CONFIG_SME
3015 if ((wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS ||
3016 wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS_SK_PFS) &&
3017 (!data->assoc_info.resp_frame ||
3018 fils_process_assoc_resp(wpa_s->wpa,
3019 data->assoc_info.resp_frame,
3020 data->assoc_info.resp_frame_len) < 0)) {
3021 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
3022 return -1;
3023 }
3024 #endif /* CONFIG_SME */
3025
3026 /* Additional processing for FILS when SME is in driver */
3027 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS &&
3028 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
3029 wpa_sm_set_reset_fils_completed(wpa_s->wpa, 1);
3030 #endif /* CONFIG_FILS */
3031
3032 #ifdef CONFIG_OWE
3033 if (wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
3034 (!bssid_known ||
3035 owe_process_assoc_resp(wpa_s->wpa, bssid,
3036 data->assoc_info.resp_ies,
3037 data->assoc_info.resp_ies_len) < 0)) {
3038 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
3039 return -1;
3040 }
3041 #endif /* CONFIG_OWE */
3042
3043 #ifdef CONFIG_DPP2
3044 wpa_sm_set_dpp_z(wpa_s->wpa, NULL);
3045 if (DPP_VERSION > 1 && wpa_s->key_mgmt == WPA_KEY_MGMT_DPP &&
3046 wpa_s->dpp_pfs) {
3047 struct ieee802_11_elems elems;
3048
3049 if (ieee802_11_parse_elems(data->assoc_info.resp_ies,
3050 data->assoc_info.resp_ies_len,
3051 &elems, 0) == ParseFailed ||
3052 !elems.owe_dh)
3053 goto no_pfs;
3054 if (dpp_pfs_process(wpa_s->dpp_pfs, elems.owe_dh,
3055 elems.owe_dh_len) < 0) {
3056 wpa_supplicant_deauthenticate(wpa_s,
3057 WLAN_REASON_UNSPECIFIED);
3058 return -1;
3059 }
3060
3061 wpa_sm_set_dpp_z(wpa_s->wpa, wpa_s->dpp_pfs->secret);
3062 }
3063 no_pfs:
3064 #endif /* CONFIG_DPP2 */
3065
3066 #ifdef CONFIG_IEEE80211R
3067 #ifdef CONFIG_SME
3068 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
3069 if (!bssid_known ||
3070 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
3071 data->assoc_info.resp_ies,
3072 data->assoc_info.resp_ies_len,
3073 bssid) < 0) {
3074 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
3075 "Reassociation Response failed");
3076 wpa_supplicant_deauthenticate(
3077 wpa_s, WLAN_REASON_INVALID_IE);
3078 return -1;
3079 }
3080 }
3081
3082 p = data->assoc_info.resp_ies;
3083 l = data->assoc_info.resp_ies_len;
3084
3085 #ifdef CONFIG_WPS_STRICT
3086 if (p && wpa_s->current_ssid &&
3087 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
3088 struct wpabuf *wps;
3089 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
3090 if (wps == NULL) {
3091 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
3092 "include WPS IE in (Re)Association Response");
3093 return -1;
3094 }
3095
3096 if (wps_validate_assoc_resp(wps) < 0) {
3097 wpabuf_free(wps);
3098 wpa_supplicant_deauthenticate(
3099 wpa_s, WLAN_REASON_INVALID_IE);
3100 return -1;
3101 }
3102 wpabuf_free(wps);
3103 }
3104 #endif /* CONFIG_WPS_STRICT */
3105
3106 /* Go through the IEs and make a copy of the MDIE, if present. */
3107 while (p && l >= 2) {
3108 len = p[1] + 2;
3109 if (len > l) {
3110 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
3111 p, l);
3112 break;
3113 }
3114 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
3115 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
3116 wpa_s->sme.ft_used = 1;
3117 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
3118 MOBILITY_DOMAIN_ID_LEN);
3119 break;
3120 }
3121 l -= len;
3122 p += len;
3123 }
3124 #endif /* CONFIG_SME */
3125
3126 /* Process FT when SME is in the driver */
3127 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
3128 wpa_ft_is_completed(wpa_s->wpa)) {
3129 if (!bssid_known ||
3130 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
3131 data->assoc_info.resp_ies,
3132 data->assoc_info.resp_ies_len,
3133 bssid) < 0) {
3134 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
3135 "Reassociation Response failed");
3136 wpa_supplicant_deauthenticate(
3137 wpa_s, WLAN_REASON_INVALID_IE);
3138 return -1;
3139 }
3140 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
3141 }
3142
3143 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
3144 data->assoc_info.resp_ies_len);
3145 #endif /* CONFIG_IEEE80211R */
3146
3147 if (bssid_known)
3148 wpas_handle_assoc_resp_mscs(wpa_s, bssid,
3149 data->assoc_info.resp_ies,
3150 data->assoc_info.resp_ies_len);
3151
3152 /* WPA/RSN IE from Beacon/ProbeResp */
3153 p = data->assoc_info.beacon_ies;
3154 l = data->assoc_info.beacon_ies_len;
3155
3156 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
3157 */
3158 wpa_found = rsn_found = 0;
3159 while (p && l >= 2) {
3160 len = p[1] + 2;
3161 if (len > l) {
3162 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
3163 p, l);
3164 break;
3165 }
3166 if (!wpa_found &&
3167 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
3168 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
3169 wpa_found = 1;
3170 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
3171 }
3172
3173 if (!rsn_found &&
3174 p[0] == WLAN_EID_RSN && p[1] >= 2) {
3175 rsn_found = 1;
3176 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
3177 }
3178
3179 if (p[0] == WLAN_EID_RSNX && p[1] >= 1)
3180 wpa_sm_set_ap_rsnxe(wpa_s->wpa, p, len);
3181
3182 l -= len;
3183 p += len;
3184 }
3185
3186 if (!wpa_found && data->assoc_info.beacon_ies)
3187 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
3188 if (!rsn_found && data->assoc_info.beacon_ies) {
3189 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
3190 wpa_sm_set_ap_rsnxe(wpa_s->wpa, NULL, 0);
3191 }
3192 if (wpa_found || rsn_found)
3193 wpa_s->ap_ies_from_associnfo = 1;
3194
3195 if (wpa_s->assoc_freq && data->assoc_info.freq &&
3196 wpa_s->assoc_freq != data->assoc_info.freq) {
3197 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
3198 "%u to %u MHz",
3199 wpa_s->assoc_freq, data->assoc_info.freq);
3200 wpa_supplicant_update_scan_results(wpa_s);
3201 }
3202
3203 wpa_s->assoc_freq = data->assoc_info.freq;
3204
3205 wpas_handle_assoc_resp_qos_mgmt(wpa_s, data->assoc_info.resp_ies,
3206 data->assoc_info.resp_ies_len);
3207
3208 return 0;
3209 }
3210
3211
wpa_supplicant_assoc_update_ie(struct wpa_supplicant * wpa_s)3212 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
3213 {
3214 const u8 *bss_wpa = NULL, *bss_rsn = NULL, *bss_rsnx = NULL;
3215
3216 if (!wpa_s->current_bss || !wpa_s->current_ssid)
3217 return -1;
3218
3219 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
3220 return 0;
3221
3222 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
3223 WPA_IE_VENDOR_TYPE);
3224 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
3225 bss_rsnx = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSNX);
3226
3227 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
3228 bss_wpa ? 2 + bss_wpa[1] : 0) ||
3229 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
3230 bss_rsn ? 2 + bss_rsn[1] : 0) ||
3231 wpa_sm_set_ap_rsnxe(wpa_s->wpa, bss_rsnx,
3232 bss_rsnx ? 2 + bss_rsnx[1] : 0))
3233 return -1;
3234
3235 return 0;
3236 }
3237
3238
wpas_fst_update_mb_assoc(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3239 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
3240 union wpa_event_data *data)
3241 {
3242 #ifdef CONFIG_FST
3243 struct assoc_info *ai = data ? &data->assoc_info : NULL;
3244 struct wpa_bss *bss = wpa_s->current_bss;
3245 const u8 *ieprb, *iebcn;
3246
3247 wpabuf_free(wpa_s->received_mb_ies);
3248 wpa_s->received_mb_ies = NULL;
3249
3250 if (ai &&
3251 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
3252 wpa_printf(MSG_DEBUG,
3253 "FST: MB IEs updated from Association Response frame");
3254 return;
3255 }
3256
3257 if (ai &&
3258 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
3259 wpa_printf(MSG_DEBUG,
3260 "FST: MB IEs updated from association event Beacon IEs");
3261 return;
3262 }
3263
3264 if (!bss)
3265 return;
3266
3267 ieprb = wpa_bss_ie_ptr(bss);
3268 iebcn = ieprb + bss->ie_len;
3269
3270 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
3271 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
3272 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
3273 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
3274 #endif /* CONFIG_FST */
3275 }
3276
3277
wpa_supplicant_event_assoc(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3278 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
3279 union wpa_event_data *data)
3280 {
3281 u8 bssid[ETH_ALEN];
3282 int ft_completed, already_authorized;
3283 int new_bss = 0;
3284 #if defined(CONFIG_FILS) || defined(CONFIG_MBO)
3285 struct wpa_bss *bss;
3286 #endif /* CONFIG_FILS || CONFIG_MBO */
3287
3288 #ifdef CONFIG_AP
3289 if (wpa_s->ap_iface) {
3290 if (!data)
3291 return;
3292 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
3293 data->assoc_info.addr,
3294 data->assoc_info.req_ies,
3295 data->assoc_info.req_ies_len,
3296 data->assoc_info.reassoc);
3297 return;
3298 }
3299 #endif /* CONFIG_AP */
3300
3301 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
3302 wpa_s->own_reconnect_req = 0;
3303
3304 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
3305 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
3306 return;
3307 /*
3308 * FILS authentication can share the same mechanism to mark the
3309 * connection fully authenticated, so set ft_completed also based on
3310 * FILS result.
3311 */
3312 if (!ft_completed)
3313 ft_completed = wpa_fils_is_completed(wpa_s->wpa);
3314
3315 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
3316 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
3317 wpa_supplicant_deauthenticate(
3318 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3319 return;
3320 }
3321
3322 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
3323 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
3324 if (os_reltime_initialized(&wpa_s->session_start)) {
3325 os_reltime_age(&wpa_s->session_start,
3326 &wpa_s->session_length);
3327 wpa_s->session_start.sec = 0;
3328 wpa_s->session_start.usec = 0;
3329 wpas_notify_session_length(wpa_s);
3330 } else {
3331 wpas_notify_auth_changed(wpa_s);
3332 os_get_reltime(&wpa_s->session_start);
3333 }
3334 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
3335 MACSTR, MAC2STR(bssid));
3336 new_bss = 1;
3337 random_add_randomness(bssid, ETH_ALEN);
3338 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
3339 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
3340 wpas_notify_bssid_changed(wpa_s);
3341
3342 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
3343 wpa_clear_keys(wpa_s, bssid);
3344 }
3345 if (wpa_supplicant_select_config(wpa_s) < 0) {
3346 wpa_supplicant_deauthenticate(
3347 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3348 return;
3349 }
3350 }
3351
3352 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
3353 data && wpa_supplicant_use_own_rsne_params(wpa_s, data) < 0)
3354 return;
3355
3356 multi_ap_set_4addr_mode(wpa_s);
3357
3358 if (wpa_s->conf->ap_scan == 1 &&
3359 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
3360 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
3361 wpa_msg(wpa_s, MSG_WARNING,
3362 "WPA/RSN IEs not updated");
3363 }
3364
3365 wpas_fst_update_mb_assoc(wpa_s, data);
3366
3367 #ifdef CONFIG_SME
3368 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
3369 wpa_s->sme.prev_bssid_set = 1;
3370 wpa_s->sme.last_unprot_disconnect.sec = 0;
3371 #endif /* CONFIG_SME */
3372
3373 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
3374 if (wpa_s->current_ssid) {
3375 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
3376 * initialized before association, but for other modes,
3377 * initialize PC/SC here, if the current configuration needs
3378 * smartcard or SIM/USIM. */
3379 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
3380 }
3381 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
3382 if (wpa_s->l2)
3383 l2_packet_notify_auth_start(wpa_s->l2);
3384
3385 already_authorized = data && data->assoc_info.authorized;
3386
3387 /*
3388 * Set portEnabled first to false in order to get EAP state machine out
3389 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
3390 * state machine may transit to AUTHENTICATING state based on obsolete
3391 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
3392 * AUTHENTICATED without ever giving chance to EAP state machine to
3393 * reset the state.
3394 */
3395 if (!ft_completed && !already_authorized) {
3396 eapol_sm_notify_portEnabled(wpa_s->eapol, false);
3397 eapol_sm_notify_portValid(wpa_s->eapol, false);
3398 }
3399 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3400 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP ||
3401 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE || ft_completed ||
3402 already_authorized || wpa_s->drv_authorized_port)
3403 eapol_sm_notify_eap_success(wpa_s->eapol, false);
3404 /* 802.1X::portControl = Auto */
3405 eapol_sm_notify_portEnabled(wpa_s->eapol, true);
3406 wpa_s->eapol_received = 0;
3407 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
3408 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
3409 (wpa_s->current_ssid &&
3410 wpa_s->current_ssid->mode == WPAS_MODE_IBSS)) {
3411 if (wpa_s->current_ssid &&
3412 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
3413 (wpa_s->drv_flags &
3414 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
3415 /*
3416 * Set the key after having received joined-IBSS event
3417 * from the driver.
3418 */
3419 wpa_supplicant_set_wpa_none_key(wpa_s,
3420 wpa_s->current_ssid);
3421 }
3422 wpa_supplicant_cancel_auth_timeout(wpa_s);
3423 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3424 } else if (!ft_completed) {
3425 /* Timeout for receiving the first EAPOL packet */
3426 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
3427 }
3428 wpa_supplicant_cancel_scan(wpa_s);
3429
3430 if (ft_completed) {
3431 /*
3432 * FT protocol completed - make sure EAPOL state machine ends
3433 * up in authenticated.
3434 */
3435 wpa_supplicant_cancel_auth_timeout(wpa_s);
3436 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3437 eapol_sm_notify_portValid(wpa_s->eapol, true);
3438 eapol_sm_notify_eap_success(wpa_s->eapol, true);
3439 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK) &&
3440 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
3441 /*
3442 * We are done; the driver will take care of RSN 4-way
3443 * handshake.
3444 */
3445 wpa_supplicant_cancel_auth_timeout(wpa_s);
3446 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3447 eapol_sm_notify_portValid(wpa_s->eapol, true);
3448 eapol_sm_notify_eap_success(wpa_s->eapol, true);
3449 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X) &&
3450 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
3451 /*
3452 * The driver will take care of RSN 4-way handshake, so we need
3453 * to allow EAPOL supplicant to complete its work without
3454 * waiting for WPA supplicant.
3455 */
3456 eapol_sm_notify_portValid(wpa_s->eapol, true);
3457 }
3458
3459 wpa_s->last_eapol_matches_bssid = 0;
3460
3461 #ifdef CONFIG_TESTING_OPTIONS
3462 if (wpa_s->rsne_override_eapol) {
3463 wpa_printf(MSG_DEBUG,
3464 "TESTING: RSNE EAPOL-Key msg 2/4 override");
3465 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa,
3466 wpabuf_head(wpa_s->rsne_override_eapol),
3467 wpabuf_len(wpa_s->rsne_override_eapol));
3468 }
3469 if (wpa_s->rsnxe_override_eapol) {
3470 wpa_printf(MSG_DEBUG,
3471 "TESTING: RSNXE EAPOL-Key msg 2/4 override");
3472 wpa_sm_set_assoc_rsnxe(wpa_s->wpa,
3473 wpabuf_head(wpa_s->rsnxe_override_eapol),
3474 wpabuf_len(wpa_s->rsnxe_override_eapol));
3475 }
3476 #endif /* CONFIG_TESTING_OPTIONS */
3477
3478 if (wpa_s->pending_eapol_rx) {
3479 struct os_reltime now, age;
3480 os_get_reltime(&now);
3481 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
3482 if (age.sec == 0 && age.usec < 200000 &&
3483 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
3484 0) {
3485 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
3486 "frame that was received just before "
3487 "association notification");
3488 wpa_supplicant_rx_eapol(
3489 wpa_s, wpa_s->pending_eapol_rx_src,
3490 wpabuf_head(wpa_s->pending_eapol_rx),
3491 wpabuf_len(wpa_s->pending_eapol_rx));
3492 }
3493 wpabuf_free(wpa_s->pending_eapol_rx);
3494 wpa_s->pending_eapol_rx = NULL;
3495 }
3496
3497 #ifdef CONFIG_WEP
3498 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
3499 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
3500 wpa_s->current_ssid &&
3501 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
3502 /* Set static WEP keys again */
3503 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
3504 }
3505 #endif /* CONFIG_WEP */
3506
3507 #ifdef CONFIG_IBSS_RSN
3508 if (wpa_s->current_ssid &&
3509 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3510 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
3511 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
3512 wpa_s->ibss_rsn == NULL) {
3513 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s, wpa_s->current_ssid);
3514 if (!wpa_s->ibss_rsn) {
3515 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
3516 wpa_supplicant_deauthenticate(
3517 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3518 return;
3519 }
3520
3521 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
3522 }
3523 #endif /* CONFIG_IBSS_RSN */
3524
3525 wpas_wps_notify_assoc(wpa_s, bssid);
3526
3527 if (data) {
3528 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
3529 data->assoc_info.resp_ies_len,
3530 &data->assoc_info.wmm_params);
3531
3532 if (wpa_s->reassoc_same_bss)
3533 wmm_ac_restore_tspecs(wpa_s);
3534 }
3535
3536 #if defined(CONFIG_FILS) || defined(CONFIG_MBO)
3537 bss = wpa_bss_get_bssid(wpa_s, bssid);
3538 #endif /* CONFIG_FILS || CONFIG_MBO */
3539 #ifdef CONFIG_FILS
3540 if (wpa_key_mgmt_fils(wpa_s->key_mgmt)) {
3541 const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
3542
3543 if (fils_cache_id)
3544 wpa_sm_set_fils_cache_id(wpa_s->wpa, fils_cache_id);
3545 }
3546 #endif /* CONFIG_FILS */
3547
3548 #ifdef CONFIG_MBO
3549 wpas_mbo_check_pmf(wpa_s, bss, wpa_s->current_ssid);
3550 #endif /* CONFIG_MBO */
3551
3552 #ifdef CONFIG_DPP2
3553 wpa_s->dpp_pfs_fallback = 0;
3554 #endif /* CONFIG_DPP2 */
3555 }
3556
3557
disconnect_reason_recoverable(u16 reason_code)3558 static int disconnect_reason_recoverable(u16 reason_code)
3559 {
3560 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
3561 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
3562 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
3563 }
3564
3565
wpa_supplicant_event_disassoc(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)3566 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
3567 u16 reason_code,
3568 int locally_generated)
3569 {
3570 const u8 *bssid;
3571
3572 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
3573 /*
3574 * At least Host AP driver and a Prism3 card seemed to be
3575 * generating streams of disconnected events when configuring
3576 * IBSS for WPA-None. Ignore them for now.
3577 */
3578 return;
3579 }
3580
3581 bssid = wpa_s->bssid;
3582 if (is_zero_ether_addr(bssid))
3583 bssid = wpa_s->pending_bssid;
3584
3585 if (!is_zero_ether_addr(bssid) ||
3586 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3587 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
3588 " reason=%d%s",
3589 MAC2STR(bssid), reason_code,
3590 locally_generated ? " locally_generated=1" : "");
3591 #ifdef __ZEPHYR__
3592 int status = 0;
3593 supplicant_send_wifi_mgmt_event(wpa_s->ifname, NET_EVENT_WIFI_CMD_DISCONNECT_RESULT, (void *)&status, sizeof(int));
3594 #endif /* __ZEPHYR__ */
3595 }
3596 }
3597
3598
could_be_psk_mismatch(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)3599 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
3600 int locally_generated)
3601 {
3602 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
3603 !wpa_s->new_connection ||
3604 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3605 wpa_key_mgmt_sae(wpa_s->key_mgmt))
3606 return 0; /* Not in initial 4-way handshake with PSK */
3607
3608 /*
3609 * It looks like connection was lost while trying to go through PSK
3610 * 4-way handshake. Filter out known disconnection cases that are caused
3611 * by something else than PSK mismatch to avoid confusing reports.
3612 */
3613
3614 if (locally_generated) {
3615 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
3616 return 0;
3617 }
3618
3619 return 1;
3620 }
3621
3622
wpa_supplicant_event_disassoc_finish(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)3623 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
3624 u16 reason_code,
3625 int locally_generated)
3626 {
3627 const u8 *bssid;
3628 int authenticating;
3629 u8 prev_pending_bssid[ETH_ALEN];
3630 struct wpa_bss *fast_reconnect = NULL;
3631 struct wpa_ssid *fast_reconnect_ssid = NULL;
3632 struct wpa_ssid *last_ssid;
3633 struct wpa_bss *curr = NULL;
3634
3635 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
3636 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
3637
3638 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
3639 /*
3640 * At least Host AP driver and a Prism3 card seemed to be
3641 * generating streams of disconnected events when configuring
3642 * IBSS for WPA-None. Ignore them for now.
3643 */
3644 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
3645 "IBSS/WPA-None mode");
3646 return;
3647 }
3648
3649 if (!wpa_s->disconnected && wpa_s->wpa_state >= WPA_AUTHENTICATING &&
3650 reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY &&
3651 locally_generated)
3652 /*
3653 * Remove the inactive AP (which is probably out of range) from
3654 * the BSS list after marking disassociation. In particular
3655 * mac80211-based drivers use the
3656 * WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in
3657 * locally generated disconnection events for cases where the
3658 * AP does not reply anymore.
3659 */
3660 curr = wpa_s->current_bss;
3661
3662 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
3663 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
3664 "pre-shared key may be incorrect");
3665 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
3666 return; /* P2P group removed */
3667 wpas_auth_failed(wpa_s, "WRONG_KEY");
3668 #ifdef CONFIG_DPP2
3669 wpas_dpp_send_conn_status_result(wpa_s,
3670 DPP_STATUS_AUTH_FAILURE);
3671 #endif /* CONFIG_DPP2 */
3672 }
3673 if (!wpa_s->disconnected &&
3674 (!wpa_s->auto_reconnect_disabled ||
3675 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
3676 wpas_wps_searching(wpa_s) ||
3677 wpas_wps_reenable_networks_pending(wpa_s))) {
3678 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
3679 "reconnect (wps=%d/%d wpa_state=%d)",
3680 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
3681 wpas_wps_searching(wpa_s),
3682 wpa_s->wpa_state);
3683 if (wpa_s->wpa_state == WPA_COMPLETED &&
3684 wpa_s->current_ssid &&
3685 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
3686 (wpa_s->own_reconnect_req ||
3687 (!locally_generated &&
3688 disconnect_reason_recoverable(reason_code)))) {
3689 /*
3690 * It looks like the AP has dropped association with
3691 * us, but could allow us to get back in. This is also
3692 * triggered for cases where local reconnection request
3693 * is used to force reassociation with the same BSS.
3694 * Try to reconnect to the same BSS without a full scan
3695 * to save time for some common cases.
3696 */
3697 fast_reconnect = wpa_s->current_bss;
3698 fast_reconnect_ssid = wpa_s->current_ssid;
3699 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) {
3700 wpa_supplicant_req_scan(wpa_s, 0, 100000);
3701 } else {
3702 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
3703 "immediate scan");
3704 }
3705 } else {
3706 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
3707 "try to re-connect");
3708 wpa_s->reassociate = 0;
3709 wpa_s->disconnected = 1;
3710 if (!wpa_s->pno)
3711 wpa_supplicant_cancel_sched_scan(wpa_s);
3712 }
3713 bssid = wpa_s->bssid;
3714 if (is_zero_ether_addr(bssid))
3715 bssid = wpa_s->pending_bssid;
3716 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
3717 wpas_connection_failed(wpa_s, bssid);
3718 wpa_sm_notify_disassoc(wpa_s->wpa);
3719 ptksa_cache_flush(wpa_s->ptksa, wpa_s->bssid, WPA_CIPHER_NONE);
3720
3721 if (locally_generated)
3722 wpa_s->disconnect_reason = -reason_code;
3723 else
3724 wpa_s->disconnect_reason = reason_code;
3725 wpas_notify_disconnect_reason(wpa_s);
3726 if (wpa_supplicant_dynamic_keys(wpa_s)) {
3727 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
3728 wpa_clear_keys(wpa_s, wpa_s->bssid);
3729 }
3730 last_ssid = wpa_s->current_ssid;
3731 wpa_supplicant_mark_disassoc(wpa_s);
3732
3733 if (curr)
3734 wpa_bss_remove(wpa_s, curr, "Connection to AP lost");
3735
3736 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
3737 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
3738 wpa_s->current_ssid = last_ssid;
3739 }
3740
3741 if (fast_reconnect &&
3742 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
3743 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
3744 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
3745 fast_reconnect->ssid_len) &&
3746 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
3747 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect)) {
3748 #ifndef CONFIG_NO_SCAN_PROCESSING
3749 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
3750 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
3751 fast_reconnect_ssid) < 0) {
3752 /* Recover through full scan */
3753 wpa_supplicant_req_scan(wpa_s, 0, 100000);
3754 }
3755 #endif /* CONFIG_NO_SCAN_PROCESSING */
3756 } else if (fast_reconnect) {
3757 /*
3758 * Could not reconnect to the same BSS due to network being
3759 * disabled. Use a new scan to match the alternative behavior
3760 * above, i.e., to continue automatic reconnection attempt in a
3761 * way that enforces disabled network rules.
3762 */
3763 wpa_supplicant_req_scan(wpa_s, 0, 100000);
3764 }
3765 }
3766
3767
3768 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
wpa_supplicant_delayed_mic_error_report(void * eloop_ctx,void * sock_ctx)3769 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
3770 {
3771 struct wpa_supplicant *wpa_s = eloop_ctx;
3772
3773 if (!wpa_s->pending_mic_error_report)
3774 return;
3775
3776 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
3777 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
3778 wpa_s->pending_mic_error_report = 0;
3779 }
3780 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3781
3782
3783 static void
wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3784 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
3785 union wpa_event_data *data)
3786 {
3787 int pairwise;
3788 struct os_reltime t;
3789
3790 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
3791 pairwise = (data && data->michael_mic_failure.unicast);
3792 os_get_reltime(&t);
3793 if ((wpa_s->last_michael_mic_error.sec &&
3794 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
3795 wpa_s->pending_mic_error_report) {
3796 if (wpa_s->pending_mic_error_report) {
3797 /*
3798 * Send the pending MIC error report immediately since
3799 * we are going to start countermeasures and AP better
3800 * do the same.
3801 */
3802 wpa_sm_key_request(wpa_s->wpa, 1,
3803 wpa_s->pending_mic_error_pairwise);
3804 }
3805
3806 /* Send the new MIC error report immediately since we are going
3807 * to start countermeasures and AP better do the same.
3808 */
3809 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3810
3811 /* initialize countermeasures */
3812 wpa_s->countermeasures = 1;
3813
3814 wpa_bssid_ignore_add(wpa_s, wpa_s->bssid);
3815
3816 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
3817
3818 /*
3819 * Need to wait for completion of request frame. We do not get
3820 * any callback for the message completion, so just wait a
3821 * short while and hope for the best. */
3822 os_sleep(0, 10000);
3823
3824 wpa_drv_set_countermeasures(wpa_s, 1);
3825 wpa_supplicant_deauthenticate(wpa_s,
3826 WLAN_REASON_MICHAEL_MIC_FAILURE);
3827 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
3828 wpa_s, NULL);
3829 eloop_register_timeout(60, 0,
3830 wpa_supplicant_stop_countermeasures,
3831 wpa_s, NULL);
3832 /* TODO: mark the AP rejected for 60 second. STA is
3833 * allowed to associate with another AP.. */
3834 } else {
3835 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
3836 if (wpa_s->mic_errors_seen) {
3837 /*
3838 * Reduce the effectiveness of Michael MIC error
3839 * reports as a means for attacking against TKIP if
3840 * more than one MIC failure is noticed with the same
3841 * PTK. We delay the transmission of the reports by a
3842 * random time between 0 and 60 seconds in order to
3843 * force the attacker wait 60 seconds before getting
3844 * the information on whether a frame resulted in a MIC
3845 * failure.
3846 */
3847 u8 rval[4];
3848 int sec;
3849
3850 if (os_get_random(rval, sizeof(rval)) < 0)
3851 sec = os_random() % 60;
3852 else
3853 sec = WPA_GET_BE32(rval) % 60;
3854 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
3855 "report %d seconds", sec);
3856 wpa_s->pending_mic_error_report = 1;
3857 wpa_s->pending_mic_error_pairwise = pairwise;
3858 eloop_cancel_timeout(
3859 wpa_supplicant_delayed_mic_error_report,
3860 wpa_s, NULL);
3861 eloop_register_timeout(
3862 sec, os_random() % 1000000,
3863 wpa_supplicant_delayed_mic_error_report,
3864 wpa_s, NULL);
3865 } else {
3866 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3867 }
3868 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3869 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3870 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3871 }
3872 wpa_s->last_michael_mic_error = t;
3873 wpa_s->mic_errors_seen++;
3874 }
3875
3876
3877 #ifdef CONFIG_TERMINATE_ONLASTIF
any_interfaces(struct wpa_supplicant * head)3878 static int any_interfaces(struct wpa_supplicant *head)
3879 {
3880 struct wpa_supplicant *wpa_s;
3881
3882 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
3883 if (!wpa_s->interface_removed)
3884 return 1;
3885 return 0;
3886 }
3887 #endif /* CONFIG_TERMINATE_ONLASTIF */
3888
3889
3890 static void
wpa_supplicant_event_interface_status(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3891 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
3892 union wpa_event_data *data)
3893 {
3894 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
3895 return;
3896
3897 switch (data->interface_status.ievent) {
3898 case EVENT_INTERFACE_ADDED:
3899 if (!wpa_s->interface_removed)
3900 break;
3901 wpa_s->interface_removed = 0;
3902 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
3903 if (wpa_supplicant_driver_init(wpa_s) < 0) {
3904 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
3905 "driver after interface was added");
3906 }
3907
3908 #ifdef CONFIG_P2P
3909 if (!wpa_s->global->p2p &&
3910 !wpa_s->global->p2p_disabled &&
3911 !wpa_s->conf->p2p_disabled &&
3912 (wpa_s->drv_flags &
3913 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
3914 wpas_p2p_add_p2pdev_interface(
3915 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
3916 wpa_printf(MSG_INFO,
3917 "P2P: Failed to enable P2P Device interface");
3918 /* Try to continue without. P2P will be disabled. */
3919 }
3920 #endif /* CONFIG_P2P */
3921
3922 break;
3923 case EVENT_INTERFACE_REMOVED:
3924 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
3925 wpa_s->interface_removed = 1;
3926 wpa_supplicant_mark_disassoc(wpa_s);
3927 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3928 l2_packet_deinit(wpa_s->l2);
3929 wpa_s->l2 = NULL;
3930
3931 #ifdef CONFIG_P2P
3932 if (wpa_s->global->p2p &&
3933 wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
3934 (wpa_s->drv_flags &
3935 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
3936 wpa_dbg(wpa_s, MSG_DEBUG,
3937 "Removing P2P Device interface");
3938 wpa_supplicant_remove_iface(
3939 wpa_s->global, wpa_s->global->p2p_init_wpa_s,
3940 0);
3941 wpa_s->global->p2p_init_wpa_s = NULL;
3942 }
3943 #endif /* CONFIG_P2P */
3944
3945 #ifdef CONFIG_MATCH_IFACE
3946 if (wpa_s->matched) {
3947 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
3948 break;
3949 }
3950 #endif /* CONFIG_MATCH_IFACE */
3951
3952 #ifdef CONFIG_TERMINATE_ONLASTIF
3953 /* check if last interface */
3954 if (!any_interfaces(wpa_s->global->ifaces))
3955 eloop_terminate();
3956 #endif /* CONFIG_TERMINATE_ONLASTIF */
3957 break;
3958 }
3959 }
3960
3961
3962 #ifdef CONFIG_TDLS
wpa_supplicant_event_tdls(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3963 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
3964 union wpa_event_data *data)
3965 {
3966 if (data == NULL)
3967 return;
3968 switch (data->tdls.oper) {
3969 case TDLS_REQUEST_SETUP:
3970 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
3971 if (wpa_tdls_is_external_setup(wpa_s->wpa))
3972 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
3973 else
3974 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
3975 break;
3976 case TDLS_REQUEST_TEARDOWN:
3977 if (wpa_tdls_is_external_setup(wpa_s->wpa))
3978 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
3979 data->tdls.reason_code);
3980 else
3981 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
3982 data->tdls.peer);
3983 break;
3984 case TDLS_REQUEST_DISCOVER:
3985 wpa_tdls_send_discovery_request(wpa_s->wpa,
3986 data->tdls.peer);
3987 break;
3988 }
3989 }
3990 #endif /* CONFIG_TDLS */
3991
3992
3993 #ifdef CONFIG_WNM
wpa_supplicant_event_wnm(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3994 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
3995 union wpa_event_data *data)
3996 {
3997 if (data == NULL)
3998 return;
3999 switch (data->wnm.oper) {
4000 case WNM_OPER_SLEEP:
4001 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
4002 "(action=%d, intval=%d)",
4003 data->wnm.sleep_action, data->wnm.sleep_intval);
4004 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
4005 data->wnm.sleep_intval, NULL);
4006 break;
4007 }
4008 }
4009 #endif /* CONFIG_WNM */
4010
4011
4012 #ifdef CONFIG_IEEE80211R
4013 static void
wpa_supplicant_event_ft_response(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4014 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
4015 union wpa_event_data *data)
4016 {
4017 if (data == NULL)
4018 return;
4019
4020 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
4021 data->ft_ies.ies_len,
4022 data->ft_ies.ft_action,
4023 data->ft_ies.target_ap,
4024 data->ft_ies.ric_ies,
4025 data->ft_ies.ric_ies_len) < 0) {
4026 /* TODO: prevent MLME/driver from trying to associate? */
4027 }
4028 }
4029 #endif /* CONFIG_IEEE80211R */
4030
4031
4032 #ifdef CONFIG_IBSS_RSN
wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4033 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
4034 union wpa_event_data *data)
4035 {
4036 struct wpa_ssid *ssid;
4037 if (wpa_s->wpa_state < WPA_ASSOCIATED)
4038 return;
4039 if (data == NULL)
4040 return;
4041 ssid = wpa_s->current_ssid;
4042 if (ssid == NULL)
4043 return;
4044 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
4045 return;
4046
4047 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
4048 }
4049
4050
wpa_supplicant_event_ibss_auth(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4051 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
4052 union wpa_event_data *data)
4053 {
4054 struct wpa_ssid *ssid = wpa_s->current_ssid;
4055
4056 if (ssid == NULL)
4057 return;
4058
4059 /* check if the ssid is correctly configured as IBSS/RSN */
4060 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
4061 return;
4062
4063 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
4064 data->rx_mgmt.frame_len);
4065 }
4066 #endif /* CONFIG_IBSS_RSN */
4067
4068
4069 #ifdef CONFIG_IEEE80211R
ft_rx_action(struct wpa_supplicant * wpa_s,const u8 * data,size_t len)4070 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
4071 size_t len)
4072 {
4073 const u8 *sta_addr, *target_ap_addr;
4074 u16 status;
4075
4076 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
4077 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
4078 return; /* only SME case supported for now */
4079 if (len < 1 + 2 * ETH_ALEN + 2)
4080 return;
4081 if (data[0] != 2)
4082 return; /* Only FT Action Response is supported for now */
4083 sta_addr = data + 1;
4084 target_ap_addr = data + 1 + ETH_ALEN;
4085 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
4086 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
4087 MACSTR " TargetAP " MACSTR " status %u",
4088 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
4089
4090 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
4091 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
4092 " in FT Action Response", MAC2STR(sta_addr));
4093 return;
4094 }
4095
4096 if (status) {
4097 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
4098 "failure (status code %d)", status);
4099 /* TODO: report error to FT code(?) */
4100 return;
4101 }
4102
4103 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
4104 len - (1 + 2 * ETH_ALEN + 2), 1,
4105 target_ap_addr, NULL, 0) < 0)
4106 return;
4107
4108 #ifdef CONFIG_SME
4109 {
4110 struct wpa_bss *bss;
4111 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
4112 if (bss)
4113 wpa_s->sme.freq = bss->freq;
4114 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
4115 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
4116 WLAN_AUTH_FT);
4117 }
4118 #endif /* CONFIG_SME */
4119 }
4120 #endif /* CONFIG_IEEE80211R */
4121
4122
wpa_supplicant_event_unprot_deauth(struct wpa_supplicant * wpa_s,struct unprot_deauth * e)4123 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
4124 struct unprot_deauth *e)
4125 {
4126 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
4127 "dropped: " MACSTR " -> " MACSTR
4128 " (reason code %u)",
4129 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
4130 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
4131 }
4132
4133
wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant * wpa_s,struct unprot_disassoc * e)4134 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
4135 struct unprot_disassoc *e)
4136 {
4137 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
4138 "dropped: " MACSTR " -> " MACSTR
4139 " (reason code %u)",
4140 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
4141 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
4142 }
4143
4144
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)4145 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
4146 u16 reason_code, int locally_generated,
4147 const u8 *ie, size_t ie_len, int deauth)
4148 {
4149 #ifdef CONFIG_AP
4150 if (wpa_s->ap_iface && addr) {
4151 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
4152 return;
4153 }
4154
4155 if (wpa_s->ap_iface) {
4156 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
4157 return;
4158 }
4159 #endif /* CONFIG_AP */
4160
4161 if (!locally_generated)
4162 wpa_s->own_disconnect_req = 0;
4163
4164 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
4165
4166 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
4167 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
4168 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
4169 eapol_sm_failed(wpa_s->eapol))) &&
4170 !wpa_s->eap_expected_failure))
4171 wpas_auth_failed(wpa_s, "AUTH_FAILED");
4172
4173 #ifdef CONFIG_P2P
4174 if (deauth && reason_code > 0) {
4175 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
4176 locally_generated) > 0) {
4177 /*
4178 * The interface was removed, so cannot continue
4179 * processing any additional operations after this.
4180 */
4181 return;
4182 }
4183 }
4184 #endif /* CONFIG_P2P */
4185
4186 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
4187 locally_generated);
4188 }
4189
4190
wpas_event_disassoc(struct wpa_supplicant * wpa_s,struct disassoc_info * info)4191 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
4192 struct disassoc_info *info)
4193 {
4194 u16 reason_code = 0;
4195 int locally_generated = 0;
4196 const u8 *addr = NULL;
4197 const u8 *ie = NULL;
4198 size_t ie_len = 0;
4199
4200 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
4201
4202 if (info) {
4203 addr = info->addr;
4204 ie = info->ie;
4205 ie_len = info->ie_len;
4206 reason_code = info->reason_code;
4207 locally_generated = info->locally_generated;
4208 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s", reason_code,
4209 reason2str(reason_code),
4210 locally_generated ? " locally_generated=1" : "");
4211 if (addr)
4212 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
4213 MAC2STR(addr));
4214 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
4215 ie, ie_len);
4216 }
4217
4218 #ifdef CONFIG_AP
4219 if (wpa_s->ap_iface && info && info->addr) {
4220 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
4221 return;
4222 }
4223
4224 if (wpa_s->ap_iface) {
4225 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
4226 return;
4227 }
4228 #endif /* CONFIG_AP */
4229
4230 #ifdef CONFIG_P2P
4231 if (info) {
4232 wpas_p2p_disassoc_notif(
4233 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
4234 locally_generated);
4235 }
4236 #endif /* CONFIG_P2P */
4237
4238 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
4239 sme_event_disassoc(wpa_s, info);
4240
4241 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
4242 ie, ie_len, 0);
4243 }
4244
4245
wpas_event_deauth(struct wpa_supplicant * wpa_s,struct deauth_info * info)4246 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
4247 struct deauth_info *info)
4248 {
4249 u16 reason_code = 0;
4250 int locally_generated = 0;
4251 const u8 *addr = NULL;
4252 const u8 *ie = NULL;
4253 size_t ie_len = 0;
4254
4255 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
4256
4257 if (info) {
4258 addr = info->addr;
4259 ie = info->ie;
4260 ie_len = info->ie_len;
4261 reason_code = info->reason_code;
4262 locally_generated = info->locally_generated;
4263 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s",
4264 reason_code, reason2str(reason_code),
4265 locally_generated ? " locally_generated=1" : "");
4266 if (addr) {
4267 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
4268 MAC2STR(addr));
4269 }
4270 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
4271 ie, ie_len);
4272 }
4273
4274 wpa_reset_ft_completed(wpa_s->wpa);
4275
4276 wpas_event_disconnect(wpa_s, addr, reason_code,
4277 locally_generated, ie, ie_len, 1);
4278 }
4279
4280
reg_init_str(enum reg_change_initiator init)4281 static const char * reg_init_str(enum reg_change_initiator init)
4282 {
4283 switch (init) {
4284 case REGDOM_SET_BY_CORE:
4285 return "CORE";
4286 case REGDOM_SET_BY_USER:
4287 return "USER";
4288 case REGDOM_SET_BY_DRIVER:
4289 return "DRIVER";
4290 case REGDOM_SET_BY_COUNTRY_IE:
4291 return "COUNTRY_IE";
4292 case REGDOM_BEACON_HINT:
4293 return "BEACON_HINT";
4294 }
4295 return "?";
4296 }
4297
4298
reg_type_str(enum reg_type type)4299 static const char * reg_type_str(enum reg_type type)
4300 {
4301 switch (type) {
4302 case REGDOM_TYPE_UNKNOWN:
4303 return "UNKNOWN";
4304 case REGDOM_TYPE_COUNTRY:
4305 return "COUNTRY";
4306 case REGDOM_TYPE_WORLD:
4307 return "WORLD";
4308 case REGDOM_TYPE_CUSTOM_WORLD:
4309 return "CUSTOM_WORLD";
4310 case REGDOM_TYPE_INTERSECTION:
4311 return "INTERSECTION";
4312 }
4313 return "?";
4314 }
4315
4316
wpa_supplicant_update_channel_list(struct wpa_supplicant * wpa_s,struct channel_list_changed * info)4317 void wpa_supplicant_update_channel_list(struct wpa_supplicant *wpa_s,
4318 struct channel_list_changed *info)
4319 {
4320 struct wpa_supplicant *ifs;
4321 u8 dfs_domain;
4322
4323 /*
4324 * To allow backwards compatibility with higher level layers that
4325 * assumed the REGDOM_CHANGE event is sent over the initially added
4326 * interface. Find the highest parent of this interface and use it to
4327 * send the event.
4328 */
4329 for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
4330 ;
4331
4332 if (info) {
4333 wpa_msg(ifs, MSG_INFO,
4334 WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
4335 reg_init_str(info->initiator), reg_type_str(info->type),
4336 info->alpha2[0] ? " alpha2=" : "",
4337 info->alpha2[0] ? info->alpha2 : "");
4338 }
4339
4340 if (wpa_s->drv_priv == NULL)
4341 return; /* Ignore event during drv initialization */
4342
4343 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
4344 radio_list) {
4345 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
4346 ifs->ifname);
4347 free_hw_features(ifs);
4348 ifs->hw.modes = wpa_drv_get_hw_feature_data(
4349 ifs, &ifs->hw.num_modes, &ifs->hw.flags, &dfs_domain);
4350
4351 /* Restart PNO/sched_scan with updated channel list */
4352 if (ifs->pno) {
4353 wpas_stop_pno(ifs);
4354 wpas_start_pno(ifs);
4355 } else if (ifs->sched_scanning && !ifs->pno_sched_pending) {
4356 wpa_dbg(ifs, MSG_DEBUG,
4357 "Channel list changed - restart sched_scan");
4358 wpas_scan_restart_sched_scan(ifs);
4359 }
4360 }
4361
4362 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
4363 }
4364
4365
wpas_event_rx_mgmt_action(struct wpa_supplicant * wpa_s,const u8 * frame,size_t len,int freq,int rssi)4366 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
4367 const u8 *frame, size_t len, int freq,
4368 int rssi)
4369 {
4370 const struct ieee80211_mgmt *mgmt;
4371 const u8 *payload;
4372 size_t plen;
4373 u8 category;
4374
4375 if (len < IEEE80211_HDRLEN + 2)
4376 return;
4377
4378 mgmt = (const struct ieee80211_mgmt *) frame;
4379 payload = frame + IEEE80211_HDRLEN;
4380 category = *payload++;
4381 plen = len - IEEE80211_HDRLEN - 1;
4382
4383 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
4384 " Category=%u DataLen=%d freq=%d MHz",
4385 MAC2STR(mgmt->sa), category, (int) plen, freq);
4386
4387 if (category == WLAN_ACTION_WMM) {
4388 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
4389 return;
4390 }
4391
4392 #ifdef CONFIG_IEEE80211R
4393 if (category == WLAN_ACTION_FT) {
4394 ft_rx_action(wpa_s, payload, plen);
4395 return;
4396 }
4397 #endif /* CONFIG_IEEE80211R */
4398
4399 #ifdef CONFIG_SME
4400 if (category == WLAN_ACTION_SA_QUERY) {
4401 sme_sa_query_rx(wpa_s, mgmt->da, mgmt->sa, payload, plen);
4402 return;
4403 }
4404 #endif /* CONFIG_SME */
4405
4406 #ifdef CONFIG_WNM
4407 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
4408 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
4409 return;
4410 }
4411 #endif /* CONFIG_WNM */
4412
4413 #ifdef CONFIG_GAS
4414 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
4415 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
4416 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
4417 mgmt->u.action.category,
4418 payload, plen, freq) == 0)
4419 return;
4420 #endif /* CONFIG_GAS */
4421
4422 #ifdef CONFIG_GAS_SERVER
4423 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
4424 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
4425 gas_server_rx(wpa_s->gas_server, mgmt->da, mgmt->sa, mgmt->bssid,
4426 mgmt->u.action.category,
4427 payload, plen, freq) == 0)
4428 return;
4429 #endif /* CONFIG_GAS_SERVER */
4430
4431 #ifdef CONFIG_TDLS
4432 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
4433 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
4434 wpa_dbg(wpa_s, MSG_DEBUG,
4435 "TDLS: Received Discovery Response from " MACSTR,
4436 MAC2STR(mgmt->sa));
4437 return;
4438 }
4439 #endif /* CONFIG_TDLS */
4440
4441 #ifdef CONFIG_INTERWORKING
4442 if (category == WLAN_ACTION_QOS && plen >= 1 &&
4443 payload[0] == QOS_QOS_MAP_CONFIG) {
4444 const u8 *pos = payload + 1;
4445 size_t qlen = plen - 1;
4446 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
4447 MACSTR, MAC2STR(mgmt->sa));
4448 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
4449 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
4450 pos[1] <= qlen - 2 && pos[1] >= 16)
4451 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
4452 return;
4453 }
4454 #endif /* CONFIG_INTERWORKING */
4455
4456 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4457 payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
4458 wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
4459 mgmt->da,
4460 payload + 1,
4461 plen - 1);
4462 return;
4463 }
4464
4465 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4466 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
4467 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
4468 return;
4469 }
4470
4471 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4472 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
4473 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
4474 payload + 1, plen - 1,
4475 rssi);
4476 return;
4477 }
4478
4479 #ifdef CONFIG_FST
4480 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
4481 fst_rx_action(wpa_s->fst, mgmt, len);
4482 return;
4483 }
4484 #endif /* CONFIG_FST */
4485
4486 #ifdef CONFIG_DPP
4487 if (category == WLAN_ACTION_PUBLIC && plen >= 5 &&
4488 payload[0] == WLAN_PA_VENDOR_SPECIFIC &&
4489 WPA_GET_BE24(&payload[1]) == OUI_WFA &&
4490 payload[4] == DPP_OUI_TYPE) {
4491 payload++;
4492 plen--;
4493 wpas_dpp_rx_action(wpa_s, mgmt->sa, payload, plen, freq);
4494 return;
4495 }
4496 #endif /* CONFIG_DPP */
4497
4498 if (category == WLAN_ACTION_ROBUST_AV_STREAMING &&
4499 payload[0] == ROBUST_AV_SCS_RESP) {
4500 wpas_handle_robust_av_scs_recv_action(wpa_s, mgmt->sa,
4501 payload + 1, plen - 1);
4502 return;
4503 }
4504
4505 if (category == WLAN_ACTION_ROBUST_AV_STREAMING &&
4506 payload[0] == ROBUST_AV_MSCS_RESP) {
4507 wpas_handle_robust_av_recv_action(wpa_s, mgmt->sa,
4508 payload + 1, plen - 1);
4509 return;
4510 }
4511
4512 if (category == WLAN_ACTION_VENDOR_SPECIFIC_PROTECTED && plen > 4 &&
4513 WPA_GET_BE32(payload) == QM_ACTION_VENDOR_TYPE) {
4514 wpas_handle_qos_mgmt_recv_action(wpa_s, mgmt->sa,
4515 payload + 4, plen - 4);
4516 return;
4517 }
4518
4519 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
4520 category, payload, plen, freq);
4521 if (wpa_s->ifmsh)
4522 mesh_mpm_action_rx(wpa_s, mgmt, len);
4523 }
4524
4525
wpa_supplicant_notify_avoid_freq(struct wpa_supplicant * wpa_s,union wpa_event_data * event)4526 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
4527 union wpa_event_data *event)
4528 {
4529 struct wpa_freq_range_list *list;
4530 char *str = NULL;
4531
4532 list = &event->freq_range;
4533
4534 if (list->num)
4535 str = freq_range_list_str(list);
4536 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
4537 str ? str : "");
4538
4539 #ifdef CONFIG_P2P
4540 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
4541 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
4542 __func__);
4543 } else {
4544 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
4545
4546 /*
4547 * The update channel flow will also take care of moving a GO
4548 * from the unsafe frequency if needed.
4549 */
4550 wpas_p2p_update_channel_list(wpa_s,
4551 WPAS_P2P_CHANNEL_UPDATE_AVOID);
4552 }
4553 #endif /* CONFIG_P2P */
4554
4555 os_free(str);
4556 }
4557
4558
wpa_supplicant_event_port_authorized(struct wpa_supplicant * wpa_s)4559 static void wpa_supplicant_event_port_authorized(struct wpa_supplicant *wpa_s)
4560 {
4561 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
4562 wpa_supplicant_cancel_auth_timeout(wpa_s);
4563 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
4564 eapol_sm_notify_portValid(wpa_s->eapol, true);
4565 eapol_sm_notify_eap_success(wpa_s->eapol, true);
4566 wpa_s->drv_authorized_port = 1;
4567 }
4568 }
4569
4570
wpas_event_cac_ms(const struct wpa_supplicant * wpa_s,int freq)4571 static unsigned int wpas_event_cac_ms(const struct wpa_supplicant *wpa_s,
4572 int freq)
4573 {
4574 size_t i;
4575 int j;
4576
4577 for (i = 0; i < wpa_s->hw.num_modes; i++) {
4578 const struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i];
4579
4580 for (j = 0; j < mode->num_channels; j++) {
4581 const struct hostapd_channel_data *chan;
4582
4583 chan = &mode->channels[j];
4584 if (chan->freq == freq)
4585 return chan->dfs_cac_ms;
4586 }
4587 }
4588
4589 return 0;
4590 }
4591
4592
wpas_event_dfs_cac_started(struct wpa_supplicant * wpa_s,struct dfs_event * radar)4593 static void wpas_event_dfs_cac_started(struct wpa_supplicant *wpa_s,
4594 struct dfs_event *radar)
4595 {
4596 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4597 if (wpa_s->ap_iface || wpa_s->ifmsh) {
4598 wpas_ap_event_dfs_cac_started(wpa_s, radar);
4599 } else
4600 #endif /* NEED_AP_MLME && CONFIG_AP */
4601 {
4602 unsigned int cac_time = wpas_event_cac_ms(wpa_s, radar->freq);
4603
4604 cac_time /= 1000; /* convert from ms to sec */
4605 if (!cac_time)
4606 cac_time = 10 * 60; /* max timeout: 10 minutes */
4607
4608 /* Restart auth timeout: CAC time added to initial timeout */
4609 wpas_auth_timeout_restart(wpa_s, cac_time);
4610 }
4611 }
4612
4613
wpas_event_dfs_cac_finished(struct wpa_supplicant * wpa_s,struct dfs_event * radar)4614 static void wpas_event_dfs_cac_finished(struct wpa_supplicant *wpa_s,
4615 struct dfs_event *radar)
4616 {
4617 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4618 if (wpa_s->ap_iface || wpa_s->ifmsh) {
4619 wpas_ap_event_dfs_cac_finished(wpa_s, radar);
4620 } else
4621 #endif /* NEED_AP_MLME && CONFIG_AP */
4622 {
4623 /* Restart auth timeout with original value after CAC is
4624 * finished */
4625 wpas_auth_timeout_restart(wpa_s, 0);
4626 }
4627 }
4628
4629
wpas_event_dfs_cac_aborted(struct wpa_supplicant * wpa_s,struct dfs_event * radar)4630 static void wpas_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s,
4631 struct dfs_event *radar)
4632 {
4633 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4634 if (wpa_s->ap_iface || wpa_s->ifmsh) {
4635 wpas_ap_event_dfs_cac_aborted(wpa_s, radar);
4636 } else
4637 #endif /* NEED_AP_MLME && CONFIG_AP */
4638 {
4639 /* Restart auth timeout with original value after CAC is
4640 * aborted */
4641 wpas_auth_timeout_restart(wpa_s, 0);
4642 }
4643 }
4644
4645
wpa_supplicant_event_assoc_auth(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4646 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
4647 union wpa_event_data *data)
4648 {
4649 wpa_dbg(wpa_s, MSG_DEBUG,
4650 "Connection authorized by device, previous state %d",
4651 wpa_s->wpa_state);
4652
4653 wpa_supplicant_event_port_authorized(wpa_s);
4654
4655 wpa_s->last_eapol_matches_bssid = 1;
4656
4657 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
4658 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
4659 data->assoc_info.ptk_kck_len,
4660 data->assoc_info.ptk_kek,
4661 data->assoc_info.ptk_kek_len);
4662 #ifdef CONFIG_FILS
4663 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
4664 struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
4665 const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
4666
4667 /* Update ERP next sequence number */
4668 eapol_sm_update_erp_next_seq_num(
4669 wpa_s->eapol, data->assoc_info.fils_erp_next_seq_num);
4670
4671 if (data->assoc_info.fils_pmk && data->assoc_info.fils_pmkid) {
4672 /* Add the new PMK and PMKID to the PMKSA cache */
4673 wpa_sm_pmksa_cache_add(wpa_s->wpa,
4674 data->assoc_info.fils_pmk,
4675 data->assoc_info.fils_pmk_len,
4676 data->assoc_info.fils_pmkid,
4677 wpa_s->bssid, fils_cache_id);
4678 } else if (data->assoc_info.fils_pmkid) {
4679 /* Update the current PMKSA used for this connection */
4680 pmksa_cache_set_current(wpa_s->wpa,
4681 data->assoc_info.fils_pmkid,
4682 NULL, NULL, 0, NULL, 0);
4683 }
4684 }
4685 #endif /* CONFIG_FILS */
4686 }
4687
4688
connect_fail_reason(enum sta_connect_fail_reason_codes code)4689 static const char * connect_fail_reason(enum sta_connect_fail_reason_codes code)
4690 {
4691 switch (code) {
4692 case STA_CONNECT_FAIL_REASON_UNSPECIFIED:
4693 return "";
4694 case STA_CONNECT_FAIL_REASON_NO_BSS_FOUND:
4695 return "no_bss_found";
4696 case STA_CONNECT_FAIL_REASON_AUTH_TX_FAIL:
4697 return "auth_tx_fail";
4698 case STA_CONNECT_FAIL_REASON_AUTH_NO_ACK_RECEIVED:
4699 return "auth_no_ack_received";
4700 case STA_CONNECT_FAIL_REASON_AUTH_NO_RESP_RECEIVED:
4701 return "auth_no_resp_received";
4702 case STA_CONNECT_FAIL_REASON_ASSOC_REQ_TX_FAIL:
4703 return "assoc_req_tx_fail";
4704 case STA_CONNECT_FAIL_REASON_ASSOC_NO_ACK_RECEIVED:
4705 return "assoc_no_ack_received";
4706 case STA_CONNECT_FAIL_REASON_ASSOC_NO_RESP_RECEIVED:
4707 return "assoc_no_resp_received";
4708 default:
4709 return "unknown_reason";
4710 }
4711 }
4712
4713
wpas_event_assoc_reject(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4714 static void wpas_event_assoc_reject(struct wpa_supplicant *wpa_s,
4715 union wpa_event_data *data)
4716 {
4717 const u8 *bssid = data->assoc_reject.bssid;
4718 #ifdef CONFIG_MBO
4719 struct wpa_bss *reject_bss;
4720 #endif /* CONFIG_MBO */
4721
4722 if (!bssid || is_zero_ether_addr(bssid))
4723 bssid = wpa_s->pending_bssid;
4724 #ifdef CONFIG_MBO
4725 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
4726 reject_bss = wpa_s->current_bss;
4727 else
4728 reject_bss = wpa_bss_get_bssid(wpa_s, bssid);
4729 #endif /* CONFIG_MBO */
4730
4731 if (data->assoc_reject.bssid)
4732 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
4733 "bssid=" MACSTR " status_code=%u%s%s%s%s%s",
4734 MAC2STR(data->assoc_reject.bssid),
4735 data->assoc_reject.status_code,
4736 data->assoc_reject.timed_out ? " timeout" : "",
4737 data->assoc_reject.timeout_reason ? "=" : "",
4738 data->assoc_reject.timeout_reason ?
4739 data->assoc_reject.timeout_reason : "",
4740 data->assoc_reject.reason_code !=
4741 STA_CONNECT_FAIL_REASON_UNSPECIFIED ?
4742 " qca_driver_reason=" : "",
4743 connect_fail_reason(data->assoc_reject.reason_code));
4744 else
4745 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
4746 "status_code=%u%s%s%s%s%s",
4747 data->assoc_reject.status_code,
4748 data->assoc_reject.timed_out ? " timeout" : "",
4749 data->assoc_reject.timeout_reason ? "=" : "",
4750 data->assoc_reject.timeout_reason ?
4751 data->assoc_reject.timeout_reason : "",
4752 data->assoc_reject.reason_code !=
4753 STA_CONNECT_FAIL_REASON_UNSPECIFIED ?
4754 " qca_driver_reason=" : "",
4755 connect_fail_reason(data->assoc_reject.reason_code));
4756 wpa_s->assoc_status_code = data->assoc_reject.status_code;
4757 wpas_notify_assoc_status_code(wpa_s);
4758
4759 #ifdef CONFIG_OWE
4760 if (data->assoc_reject.status_code ==
4761 WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED &&
4762 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
4763 wpa_s->current_ssid &&
4764 wpa_s->current_ssid->owe_group == 0 &&
4765 wpa_s->last_owe_group != 21) {
4766 struct wpa_ssid *ssid = wpa_s->current_ssid;
4767 struct wpa_bss *bss = wpa_s->current_bss;
4768
4769 if (!bss) {
4770 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
4771 if (!bss) {
4772 wpas_connection_failed(wpa_s, bssid);
4773 wpa_supplicant_mark_disassoc(wpa_s);
4774 return;
4775 }
4776 }
4777 wpa_printf(MSG_DEBUG, "OWE: Try next supported DH group");
4778 wpas_connect_work_done(wpa_s);
4779 wpa_supplicant_mark_disassoc(wpa_s);
4780 wpa_supplicant_connect(wpa_s, bss, ssid);
4781 return;
4782 }
4783 #endif /* CONFIG_OWE */
4784
4785 #ifdef CONFIG_DPP2
4786 /* Try to follow AP's PFS policy. WLAN_STATUS_ASSOC_DENIED_UNSPEC is
4787 * the status code defined in the DPP R2 tech spec.
4788 * WLAN_STATUS_AKMP_NOT_VALID is addressed in the same manner as an
4789 * interoperability workaround with older hostapd implementation. */
4790 if (DPP_VERSION > 1 && wpa_s->current_ssid &&
4791 (wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP ||
4792 ((wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
4793 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP)) &&
4794 wpa_s->current_ssid->dpp_pfs == 0 &&
4795 (data->assoc_reject.status_code ==
4796 WLAN_STATUS_ASSOC_DENIED_UNSPEC ||
4797 data->assoc_reject.status_code == WLAN_STATUS_AKMP_NOT_VALID)) {
4798 struct wpa_ssid *ssid = wpa_s->current_ssid;
4799 struct wpa_bss *bss = wpa_s->current_bss;
4800
4801 wpa_s->current_ssid->dpp_pfs_fallback ^= 1;
4802 if (!bss)
4803 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
4804 if (!bss || wpa_s->dpp_pfs_fallback) {
4805 wpa_printf(MSG_DEBUG,
4806 "DPP: Updated PFS policy for next try");
4807 wpas_connection_failed(wpa_s, bssid);
4808 wpa_supplicant_mark_disassoc(wpa_s);
4809 return;
4810 }
4811 wpa_printf(MSG_DEBUG, "DPP: Try again with updated PFS policy");
4812 wpa_s->dpp_pfs_fallback = 1;
4813 wpas_connect_work_done(wpa_s);
4814 wpa_supplicant_mark_disassoc(wpa_s);
4815 wpa_supplicant_connect(wpa_s, bss, ssid);
4816 return;
4817 }
4818 #endif /* CONFIG_DPP2 */
4819
4820 #ifdef CONFIG_MBO
4821 if (data->assoc_reject.status_code ==
4822 WLAN_STATUS_DENIED_POOR_CHANNEL_CONDITIONS &&
4823 reject_bss && data->assoc_reject.resp_ies) {
4824 const u8 *rssi_rej;
4825
4826 rssi_rej = mbo_get_attr_from_ies(
4827 data->assoc_reject.resp_ies,
4828 data->assoc_reject.resp_ies_len,
4829 OCE_ATTR_ID_RSSI_BASED_ASSOC_REJECT);
4830 if (rssi_rej && rssi_rej[1] == 2) {
4831 wpa_printf(MSG_DEBUG,
4832 "OCE: RSSI-based association rejection from "
4833 MACSTR " (Delta RSSI: %u, Retry Delay: %u)",
4834 MAC2STR(reject_bss->bssid),
4835 rssi_rej[2], rssi_rej[3]);
4836 wpa_bss_tmp_disallow(wpa_s,
4837 reject_bss->bssid,
4838 rssi_rej[3],
4839 rssi_rej[2] + reject_bss->level);
4840 }
4841 }
4842 #endif /* CONFIG_MBO */
4843
4844 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
4845 sme_event_assoc_reject(wpa_s, data);
4846 return;
4847 }
4848
4849 /* Driver-based SME cases */
4850
4851 #ifdef CONFIG_SAE
4852 if (wpa_s->current_ssid &&
4853 wpa_key_mgmt_sae(wpa_s->current_ssid->key_mgmt) &&
4854 !data->assoc_reject.timed_out) {
4855 wpa_dbg(wpa_s, MSG_DEBUG, "SAE: Drop PMKSA cache entry");
4856 wpa_sm_aborted_cached(wpa_s->wpa);
4857 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
4858 }
4859 #endif /* CONFIG_SAE */
4860
4861 #ifdef CONFIG_DPP
4862 if (wpa_s->current_ssid &&
4863 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP &&
4864 !data->assoc_reject.timed_out) {
4865 wpa_dbg(wpa_s, MSG_DEBUG, "DPP: Drop PMKSA cache entry");
4866 wpa_sm_aborted_cached(wpa_s->wpa);
4867 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
4868 }
4869 #endif /* CONFIG_DPP */
4870
4871 #ifdef CONFIG_FILS
4872 /* Update ERP next sequence number */
4873 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
4874 fils_pmksa_cache_flush(wpa_s);
4875 eapol_sm_update_erp_next_seq_num(
4876 wpa_s->eapol,
4877 data->assoc_reject.fils_erp_next_seq_num);
4878 fils_connection_failure(wpa_s);
4879 }
4880 #endif /* CONFIG_FILS */
4881
4882 wpas_connection_failed(wpa_s, bssid);
4883 wpa_supplicant_mark_disassoc(wpa_s);
4884 }
4885
4886
wpas_event_unprot_beacon(struct wpa_supplicant * wpa_s,struct unprot_beacon * data)4887 static void wpas_event_unprot_beacon(struct wpa_supplicant *wpa_s,
4888 struct unprot_beacon *data)
4889 {
4890 struct wpabuf *buf;
4891 int res;
4892
4893 if (!data || wpa_s->wpa_state != WPA_COMPLETED ||
4894 os_memcmp(data->sa, wpa_s->bssid, ETH_ALEN) != 0)
4895 return;
4896 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_UNPROT_BEACON MACSTR,
4897 MAC2STR(data->sa));
4898
4899 buf = wpabuf_alloc(4);
4900 if (!buf)
4901 return;
4902
4903 wpabuf_put_u8(buf, WLAN_ACTION_WNM);
4904 wpabuf_put_u8(buf, WNM_NOTIFICATION_REQ);
4905 wpabuf_put_u8(buf, 1); /* Dialog Token */
4906 wpabuf_put_u8(buf, WNM_NOTIF_TYPE_BEACON_PROTECTION_FAILURE);
4907
4908 res = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
4909 wpa_s->own_addr, wpa_s->bssid,
4910 wpabuf_head(buf), wpabuf_len(buf), 0);
4911 if (res < 0)
4912 wpa_printf(MSG_DEBUG,
4913 "Failed to send WNM-Notification Request frame");
4914
4915 wpabuf_free(buf);
4916 }
4917
4918
wpa_supplicant_event(void * ctx,enum wpa_event_type event,union wpa_event_data * data)4919 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
4920 union wpa_event_data *data)
4921 {
4922 struct wpa_supplicant *wpa_s = ctx;
4923 int resched;
4924 struct os_reltime age, clear_at;
4925 #ifndef CONFIG_NO_STDOUT_DEBUG
4926 int level = MSG_DEBUG;
4927 #endif /* CONFIG_NO_STDOUT_DEBUG */
4928
4929 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
4930 event != EVENT_INTERFACE_ENABLED &&
4931 event != EVENT_INTERFACE_STATUS &&
4932 event != EVENT_SCAN_RESULTS &&
4933 event != EVENT_SCHED_SCAN_STOPPED) {
4934 wpa_dbg(wpa_s, MSG_DEBUG,
4935 "Ignore event %s (%d) while interface is disabled",
4936 event_to_string(event), event);
4937 return;
4938 }
4939
4940 #ifndef CONFIG_NO_STDOUT_DEBUG
4941 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
4942 const struct ieee80211_hdr *hdr;
4943 u16 fc;
4944 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
4945 fc = le_to_host16(hdr->frame_control);
4946 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
4947 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
4948 level = MSG_EXCESSIVE;
4949 }
4950
4951 wpa_dbg(wpa_s, level, "Event %s (%d) received",
4952 event_to_string(event), event);
4953 #endif /* CONFIG_NO_STDOUT_DEBUG */
4954
4955 switch (event) {
4956 case EVENT_AUTH:
4957 #ifdef CONFIG_FST
4958 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
4959 data->auth.ies_len))
4960 wpa_printf(MSG_DEBUG,
4961 "FST: MB IEs updated from auth IE");
4962 #endif /* CONFIG_FST */
4963 sme_event_auth(wpa_s, data);
4964 wpa_s->auth_status_code = data->auth.status_code;
4965 wpas_notify_auth_status_code(wpa_s);
4966 break;
4967 case EVENT_ASSOC:
4968 #ifdef CONFIG_TESTING_OPTIONS
4969 if (wpa_s->ignore_auth_resp) {
4970 wpa_printf(MSG_INFO,
4971 "EVENT_ASSOC - ignore_auth_resp active!");
4972 break;
4973 }
4974 if (wpa_s->testing_resend_assoc) {
4975 wpa_printf(MSG_INFO,
4976 "EVENT_DEAUTH - testing_resend_assoc");
4977 break;
4978 }
4979 #endif /* CONFIG_TESTING_OPTIONS */
4980 if (wpa_s->disconnected) {
4981 wpa_printf(MSG_INFO,
4982 "Ignore unexpected EVENT_ASSOC in disconnected state");
4983 break;
4984 }
4985 wpa_supplicant_event_assoc(wpa_s, data);
4986 wpa_s->assoc_status_code = WLAN_STATUS_SUCCESS;
4987 if (data &&
4988 (data->assoc_info.authorized ||
4989 (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
4990 wpa_fils_is_completed(wpa_s->wpa))))
4991 wpa_supplicant_event_assoc_auth(wpa_s, data);
4992 if (data) {
4993 wpa_msg(wpa_s, MSG_INFO,
4994 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
4995 data->assoc_info.subnet_status);
4996 }
4997 break;
4998 case EVENT_DISASSOC:
4999 wpas_event_disassoc(wpa_s,
5000 data ? &data->disassoc_info : NULL);
5001 break;
5002 case EVENT_DEAUTH:
5003 #ifdef CONFIG_TESTING_OPTIONS
5004 if (wpa_s->ignore_auth_resp) {
5005 wpa_printf(MSG_INFO,
5006 "EVENT_DEAUTH - ignore_auth_resp active!");
5007 break;
5008 }
5009 if (wpa_s->testing_resend_assoc) {
5010 wpa_printf(MSG_INFO,
5011 "EVENT_DEAUTH - testing_resend_assoc");
5012 break;
5013 }
5014 #endif /* CONFIG_TESTING_OPTIONS */
5015 wpas_event_deauth(wpa_s,
5016 data ? &data->deauth_info : NULL);
5017 break;
5018 case EVENT_MICHAEL_MIC_FAILURE:
5019 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
5020 break;
5021 #ifndef CONFIG_NO_SCAN_PROCESSING
5022 case EVENT_SCAN_STARTED:
5023 if (wpa_s->own_scan_requested ||
5024 (data && !data->scan_info.external_scan)) {
5025 struct os_reltime diff;
5026
5027 os_get_reltime(&wpa_s->scan_start_time);
5028 os_reltime_sub(&wpa_s->scan_start_time,
5029 &wpa_s->scan_trigger_time, &diff);
5030 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %lld.%06lld seconds",
5031 diff.sec, diff.usec);
5032 wpa_s->own_scan_requested = 0;
5033 wpa_s->own_scan_running = 1;
5034 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
5035 wpa_s->manual_scan_use_id) {
5036 wpa_msg_ctrl(wpa_s, MSG_INFO,
5037 WPA_EVENT_SCAN_STARTED "id=%u",
5038 wpa_s->manual_scan_id);
5039 } else {
5040 wpa_msg_ctrl(wpa_s, MSG_INFO,
5041 WPA_EVENT_SCAN_STARTED);
5042 }
5043 } else {
5044 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
5045 wpa_s->radio->external_scan_req_interface = wpa_s;
5046 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
5047 }
5048 break;
5049 case EVENT_SCAN_RESULTS:
5050 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
5051 wpa_s->scan_res_handler = NULL;
5052 wpa_s->own_scan_running = 0;
5053 wpa_s->radio->external_scan_req_interface = NULL;
5054 wpa_s->last_scan_req = NORMAL_SCAN_REQ;
5055 break;
5056 }
5057
5058 if (!(data && data->scan_info.external_scan) &&
5059 os_reltime_initialized(&wpa_s->scan_start_time)) {
5060 struct os_reltime now, diff;
5061 os_get_reltime(&now);
5062 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
5063 wpa_s->scan_start_time.sec = 0;
5064 wpa_s->scan_start_time.usec = 0;
5065 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %lld.%06lld seconds",
5066 diff.sec, diff.usec);
5067 }
5068 if (wpa_supplicant_event_scan_results(wpa_s, data))
5069 break; /* interface may have been removed */
5070 if (!(data && data->scan_info.external_scan))
5071 wpa_s->own_scan_running = 0;
5072 if (data && data->scan_info.nl_scan_event)
5073 wpa_s->radio->external_scan_req_interface = NULL;
5074 radio_work_check_next(wpa_s);
5075 break;
5076 #endif /* CONFIG_NO_SCAN_PROCESSING */
5077 case EVENT_ASSOCINFO:
5078 wpa_supplicant_event_associnfo(wpa_s, data);
5079 break;
5080 case EVENT_INTERFACE_STATUS:
5081 wpa_supplicant_event_interface_status(wpa_s, data);
5082 break;
5083 case EVENT_PMKID_CANDIDATE:
5084 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
5085 break;
5086 #ifdef CONFIG_TDLS
5087 case EVENT_TDLS:
5088 wpa_supplicant_event_tdls(wpa_s, data);
5089 break;
5090 #endif /* CONFIG_TDLS */
5091 #ifdef CONFIG_WNM
5092 case EVENT_WNM:
5093 wpa_supplicant_event_wnm(wpa_s, data);
5094 break;
5095 #endif /* CONFIG_WNM */
5096 #ifdef CONFIG_IEEE80211R
5097 case EVENT_FT_RESPONSE:
5098 wpa_supplicant_event_ft_response(wpa_s, data);
5099 break;
5100 #endif /* CONFIG_IEEE80211R */
5101 #ifdef CONFIG_IBSS_RSN
5102 case EVENT_IBSS_RSN_START:
5103 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
5104 break;
5105 #endif /* CONFIG_IBSS_RSN */
5106 case EVENT_ASSOC_REJECT:
5107 wpas_event_assoc_reject(wpa_s, data);
5108 break;
5109 case EVENT_AUTH_TIMED_OUT:
5110 /* It is possible to get this event from earlier connection */
5111 if (wpa_s->current_ssid &&
5112 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
5113 wpa_dbg(wpa_s, MSG_DEBUG,
5114 "Ignore AUTH_TIMED_OUT in mesh configuration");
5115 break;
5116 }
5117 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
5118 sme_event_auth_timed_out(wpa_s, data);
5119 break;
5120 case EVENT_ASSOC_TIMED_OUT:
5121 /* It is possible to get this event from earlier connection */
5122 if (wpa_s->current_ssid &&
5123 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
5124 wpa_dbg(wpa_s, MSG_DEBUG,
5125 "Ignore ASSOC_TIMED_OUT in mesh configuration");
5126 break;
5127 }
5128 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
5129 sme_event_assoc_timed_out(wpa_s, data);
5130 break;
5131 case EVENT_TX_STATUS:
5132 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
5133 " type=%d stype=%d",
5134 MAC2STR(data->tx_status.dst),
5135 data->tx_status.type, data->tx_status.stype);
5136 #ifdef CONFIG_PASN
5137 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
5138 data->tx_status.stype == WLAN_FC_STYPE_AUTH &&
5139 wpas_pasn_auth_tx_status(wpa_s, data->tx_status.data,
5140 data->tx_status.data_len,
5141 data->tx_status.ack) == 0)
5142 break;
5143 #endif /* CONFIG_PASN */
5144 #ifdef CONFIG_AP
5145 if (wpa_s->ap_iface == NULL) {
5146 #ifdef CONFIG_OFFCHANNEL
5147 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
5148 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
5149 offchannel_send_action_tx_status(
5150 wpa_s, data->tx_status.dst,
5151 data->tx_status.data,
5152 data->tx_status.data_len,
5153 data->tx_status.ack ?
5154 OFFCHANNEL_SEND_ACTION_SUCCESS :
5155 OFFCHANNEL_SEND_ACTION_NO_ACK);
5156 #endif /* CONFIG_OFFCHANNEL */
5157 break;
5158 }
5159 #endif /* CONFIG_AP */
5160 #ifdef CONFIG_OFFCHANNEL
5161 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
5162 MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
5163 /*
5164 * Catch TX status events for Action frames we sent via group
5165 * interface in GO mode, or via standalone AP interface.
5166 * Note, wpa_s->p2pdev will be the same as wpa_s->parent,
5167 * except when the primary interface is used as a GO interface
5168 * (for drivers which do not have group interface concurrency)
5169 */
5170 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
5171 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
5172 os_memcmp(wpa_s->p2pdev->pending_action_dst,
5173 data->tx_status.dst, ETH_ALEN) == 0) {
5174 offchannel_send_action_tx_status(
5175 wpa_s->p2pdev, data->tx_status.dst,
5176 data->tx_status.data,
5177 data->tx_status.data_len,
5178 data->tx_status.ack ?
5179 OFFCHANNEL_SEND_ACTION_SUCCESS :
5180 OFFCHANNEL_SEND_ACTION_NO_ACK);
5181 break;
5182 }
5183 #endif /* CONFIG_OFFCHANNEL */
5184 #ifdef CONFIG_AP
5185 switch (data->tx_status.type) {
5186 case WLAN_FC_TYPE_MGMT:
5187 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
5188 data->tx_status.data_len,
5189 data->tx_status.stype,
5190 data->tx_status.ack);
5191 break;
5192 case WLAN_FC_TYPE_DATA:
5193 ap_tx_status(wpa_s, data->tx_status.dst,
5194 data->tx_status.data,
5195 data->tx_status.data_len,
5196 data->tx_status.ack);
5197 break;
5198 }
5199 #endif /* CONFIG_AP */
5200 break;
5201 #ifdef CONFIG_AP
5202 case EVENT_EAPOL_TX_STATUS:
5203 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
5204 data->eapol_tx_status.data,
5205 data->eapol_tx_status.data_len,
5206 data->eapol_tx_status.ack);
5207 break;
5208 case EVENT_DRIVER_CLIENT_POLL_OK:
5209 ap_client_poll_ok(wpa_s, data->client_poll.addr);
5210 break;
5211 case EVENT_RX_FROM_UNKNOWN:
5212 if (wpa_s->ap_iface == NULL)
5213 break;
5214 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
5215 data->rx_from_unknown.wds);
5216 break;
5217 #endif /* CONFIG_AP */
5218
5219 case EVENT_CH_SWITCH_STARTED:
5220 case EVENT_CH_SWITCH:
5221 if (!data || !wpa_s->current_ssid)
5222 break;
5223
5224 wpa_msg(wpa_s, MSG_INFO,
5225 "%sfreq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
5226 event == EVENT_CH_SWITCH ? WPA_EVENT_CHANNEL_SWITCH :
5227 WPA_EVENT_CHANNEL_SWITCH_STARTED,
5228 data->ch_switch.freq,
5229 data->ch_switch.ht_enabled,
5230 data->ch_switch.ch_offset,
5231 channel_width_to_string(data->ch_switch.ch_width),
5232 data->ch_switch.cf1,
5233 data->ch_switch.cf2);
5234 if (event == EVENT_CH_SWITCH_STARTED)
5235 break;
5236
5237 wpa_s->assoc_freq = data->ch_switch.freq;
5238 wpa_s->current_ssid->frequency = data->ch_switch.freq;
5239 if (wpa_s->current_bss &&
5240 wpa_s->current_bss->freq != data->ch_switch.freq) {
5241 wpa_s->current_bss->freq = data->ch_switch.freq;
5242 notify_bss_changes(wpa_s, WPA_BSS_FREQ_CHANGED_FLAG,
5243 wpa_s->current_bss);
5244 }
5245
5246 #ifdef CONFIG_SME
5247 switch (data->ch_switch.ch_offset) {
5248 case 1:
5249 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_ABOVE;
5250 break;
5251 case -1:
5252 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_BELOW;
5253 break;
5254 default:
5255 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_UNKNOWN;
5256 break;
5257 }
5258 #endif /* CONFIG_SME */
5259
5260 #ifdef CONFIG_AP
5261 if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
5262 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
5263 wpa_s->current_ssid->mode == WPAS_MODE_MESH ||
5264 wpa_s->current_ssid->mode ==
5265 WPAS_MODE_P2P_GROUP_FORMATION) {
5266 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
5267 data->ch_switch.ht_enabled,
5268 data->ch_switch.ch_offset,
5269 data->ch_switch.ch_width,
5270 data->ch_switch.cf1,
5271 data->ch_switch.cf2,
5272 1);
5273 }
5274 #endif /* CONFIG_AP */
5275
5276 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
5277 sme_event_ch_switch(wpa_s);
5278
5279 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
5280 wnm_clear_coloc_intf_reporting(wpa_s);
5281 break;
5282 #ifdef CONFIG_AP
5283 #ifdef NEED_AP_MLME
5284 case EVENT_DFS_RADAR_DETECTED:
5285 if (data)
5286 wpas_ap_event_dfs_radar_detected(wpa_s,
5287 &data->dfs_event);
5288 break;
5289 case EVENT_DFS_NOP_FINISHED:
5290 if (data)
5291 wpas_ap_event_dfs_cac_nop_finished(wpa_s,
5292 &data->dfs_event);
5293 break;
5294 #endif /* NEED_AP_MLME */
5295 #endif /* CONFIG_AP */
5296 case EVENT_DFS_CAC_STARTED:
5297 if (data)
5298 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
5299 break;
5300 case EVENT_DFS_CAC_FINISHED:
5301 if (data)
5302 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
5303 break;
5304 case EVENT_DFS_CAC_ABORTED:
5305 if (data)
5306 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
5307 break;
5308 case EVENT_RX_MGMT: {
5309 u16 fc, stype;
5310 const struct ieee80211_mgmt *mgmt;
5311
5312 #ifdef CONFIG_TESTING_OPTIONS
5313 if (wpa_s->ext_mgmt_frame_handling) {
5314 struct rx_mgmt *rx = &data->rx_mgmt;
5315 size_t hex_len = 2 * rx->frame_len + 1;
5316 char *hex = os_malloc(hex_len);
5317 if (hex) {
5318 wpa_snprintf_hex(hex, hex_len,
5319 rx->frame, rx->frame_len);
5320 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
5321 rx->freq, rx->datarate, rx->ssi_signal,
5322 hex);
5323 os_free(hex);
5324 }
5325 break;
5326 }
5327 #endif /* CONFIG_TESTING_OPTIONS */
5328
5329 mgmt = (const struct ieee80211_mgmt *)
5330 data->rx_mgmt.frame;
5331 fc = le_to_host16(mgmt->frame_control);
5332 stype = WLAN_FC_GET_STYPE(fc);
5333
5334 #ifdef CONFIG_AP
5335 if (wpa_s->ap_iface == NULL) {
5336 #endif /* CONFIG_AP */
5337 #ifdef CONFIG_P2P
5338 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
5339 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
5340 const u8 *src = mgmt->sa;
5341 const u8 *ie;
5342 size_t ie_len;
5343
5344 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
5345 ie_len = data->rx_mgmt.frame_len -
5346 IEEE80211_HDRLEN;
5347 wpas_p2p_probe_req_rx(
5348 wpa_s, src, mgmt->da,
5349 mgmt->bssid, ie, ie_len,
5350 data->rx_mgmt.freq,
5351 data->rx_mgmt.ssi_signal);
5352 break;
5353 }
5354 #endif /* CONFIG_P2P */
5355 #ifdef CONFIG_IBSS_RSN
5356 if (wpa_s->current_ssid &&
5357 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
5358 stype == WLAN_FC_STYPE_AUTH &&
5359 data->rx_mgmt.frame_len >= 30) {
5360 wpa_supplicant_event_ibss_auth(wpa_s, data);
5361 break;
5362 }
5363 #endif /* CONFIG_IBSS_RSN */
5364
5365 if (stype == WLAN_FC_STYPE_ACTION) {
5366 wpas_event_rx_mgmt_action(
5367 wpa_s, data->rx_mgmt.frame,
5368 data->rx_mgmt.frame_len,
5369 data->rx_mgmt.freq,
5370 data->rx_mgmt.ssi_signal);
5371 break;
5372 }
5373
5374 if (wpa_s->ifmsh) {
5375 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
5376 break;
5377 }
5378 #ifdef CONFIG_PASN
5379 if (stype == WLAN_FC_STYPE_AUTH &&
5380 wpas_pasn_auth_rx(wpa_s, mgmt,
5381 data->rx_mgmt.frame_len) != -2)
5382 break;
5383 #endif /* CONFIG_PASN */
5384
5385 #ifdef CONFIG_SAE
5386 if (stype == WLAN_FC_STYPE_AUTH &&
5387 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
5388 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE)) {
5389 sme_external_auth_mgmt_rx(
5390 wpa_s, data->rx_mgmt.frame,
5391 data->rx_mgmt.frame_len);
5392 break;
5393 }
5394 #endif /* CONFIG_SAE */
5395 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
5396 "management frame in non-AP mode");
5397 break;
5398 #ifdef CONFIG_AP
5399 }
5400
5401 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
5402 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
5403 const u8 *ie;
5404 size_t ie_len;
5405
5406 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
5407 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
5408
5409 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
5410 mgmt->bssid, ie, ie_len,
5411 data->rx_mgmt.ssi_signal);
5412 }
5413
5414 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
5415 #endif /* CONFIG_AP */
5416 break;
5417 }
5418 case EVENT_RX_PROBE_REQ:
5419 if (data->rx_probe_req.sa == NULL ||
5420 data->rx_probe_req.ie == NULL)
5421 break;
5422 #ifdef CONFIG_AP
5423 if (wpa_s->ap_iface) {
5424 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
5425 data->rx_probe_req.sa,
5426 data->rx_probe_req.da,
5427 data->rx_probe_req.bssid,
5428 data->rx_probe_req.ie,
5429 data->rx_probe_req.ie_len,
5430 data->rx_probe_req.ssi_signal);
5431 break;
5432 }
5433 #endif /* CONFIG_AP */
5434 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
5435 data->rx_probe_req.da,
5436 data->rx_probe_req.bssid,
5437 data->rx_probe_req.ie,
5438 data->rx_probe_req.ie_len,
5439 0,
5440 data->rx_probe_req.ssi_signal);
5441 break;
5442 case EVENT_REMAIN_ON_CHANNEL:
5443 #ifdef CONFIG_OFFCHANNEL
5444 offchannel_remain_on_channel_cb(
5445 wpa_s, data->remain_on_channel.freq,
5446 data->remain_on_channel.duration);
5447 #endif /* CONFIG_OFFCHANNEL */
5448 wpas_p2p_remain_on_channel_cb(
5449 wpa_s, data->remain_on_channel.freq,
5450 data->remain_on_channel.duration);
5451 #ifdef CONFIG_DPP
5452 wpas_dpp_remain_on_channel_cb(
5453 wpa_s, data->remain_on_channel.freq,
5454 data->remain_on_channel.duration);
5455 #endif /* CONFIG_DPP */
5456 break;
5457 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
5458 #ifdef CONFIG_OFFCHANNEL
5459 offchannel_cancel_remain_on_channel_cb(
5460 wpa_s, data->remain_on_channel.freq);
5461 #endif /* CONFIG_OFFCHANNEL */
5462 wpas_p2p_cancel_remain_on_channel_cb(
5463 wpa_s, data->remain_on_channel.freq);
5464 #ifdef CONFIG_DPP
5465 wpas_dpp_cancel_remain_on_channel_cb(
5466 wpa_s, data->remain_on_channel.freq);
5467 #endif /* CONFIG_DPP */
5468 break;
5469 case EVENT_EAPOL_RX:
5470 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
5471 data->eapol_rx.data,
5472 data->eapol_rx.data_len);
5473 break;
5474 case EVENT_SIGNAL_CHANGE:
5475 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
5476 "above=%d signal=%d noise=%d txrate=%d",
5477 data->signal_change.above_threshold,
5478 data->signal_change.current_signal,
5479 data->signal_change.current_noise,
5480 data->signal_change.current_txrate);
5481 wpa_bss_update_level(wpa_s->current_bss,
5482 data->signal_change.current_signal);
5483 bgscan_notify_signal_change(
5484 wpa_s, data->signal_change.above_threshold,
5485 data->signal_change.current_signal,
5486 data->signal_change.current_noise,
5487 data->signal_change.current_txrate);
5488 break;
5489 case EVENT_INTERFACE_MAC_CHANGED:
5490 wpa_supplicant_update_mac_addr(wpa_s);
5491 wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
5492 break;
5493 case EVENT_INTERFACE_ENABLED:
5494 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
5495 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
5496 u8 addr[ETH_ALEN];
5497
5498 eloop_cancel_timeout(wpas_clear_disabled_interface,
5499 wpa_s, NULL);
5500 os_memcpy(addr, wpa_s->own_addr, ETH_ALEN);
5501 wpa_supplicant_update_mac_addr(wpa_s);
5502 if (os_memcmp(addr, wpa_s->own_addr, ETH_ALEN) != 0)
5503 wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
5504 else
5505 wpa_sm_pmksa_cache_reconfig(wpa_s->wpa);
5506 wpa_supplicant_set_default_scan_ies(wpa_s);
5507 if (wpa_s->p2p_mgmt) {
5508 wpa_supplicant_set_state(wpa_s,
5509 WPA_DISCONNECTED);
5510 break;
5511 }
5512
5513 #ifdef CONFIG_AP
5514 if (!wpa_s->ap_iface) {
5515 wpa_supplicant_set_state(wpa_s,
5516 WPA_DISCONNECTED);
5517 wpa_s->scan_req = NORMAL_SCAN_REQ;
5518 wpa_supplicant_req_scan(wpa_s, 0, 0);
5519 } else
5520 wpa_supplicant_set_state(wpa_s,
5521 WPA_COMPLETED);
5522 #else /* CONFIG_AP */
5523 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
5524 wpa_supplicant_req_scan(wpa_s, 0, 0);
5525 #endif /* CONFIG_AP */
5526 }
5527 break;
5528 case EVENT_INTERFACE_DISABLED:
5529 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
5530 #ifdef CONFIG_P2P
5531 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
5532 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
5533 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
5534 /*
5535 * Mark interface disabled if this happens to end up not
5536 * being removed as a separate P2P group interface.
5537 */
5538 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
5539 /*
5540 * The interface was externally disabled. Remove
5541 * it assuming an external entity will start a
5542 * new session if needed.
5543 */
5544 if (wpa_s->current_ssid &&
5545 wpa_s->current_ssid->p2p_group)
5546 wpas_p2p_interface_unavailable(wpa_s);
5547 else
5548 wpas_p2p_disconnect(wpa_s);
5549 /*
5550 * wpa_s instance may have been freed, so must not use
5551 * it here anymore.
5552 */
5553 break;
5554 }
5555 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
5556 p2p_in_progress(wpa_s->global->p2p) > 1) {
5557 /* This radio work will be cancelled, so clear P2P
5558 * state as well.
5559 */
5560 p2p_stop_find(wpa_s->global->p2p);
5561 }
5562 #endif /* CONFIG_P2P */
5563
5564 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
5565 /*
5566 * Indicate disconnection to keep ctrl_iface events
5567 * consistent.
5568 */
5569 wpa_supplicant_event_disassoc(
5570 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
5571 }
5572 wpa_supplicant_mark_disassoc(wpa_s);
5573 os_reltime_age(&wpa_s->last_scan, &age);
5574 if (age.sec >= wpa_s->conf->scan_res_valid_for_connect) {
5575 clear_at.sec = wpa_s->conf->scan_res_valid_for_connect;
5576 clear_at.usec = 0;
5577 } else {
5578 struct os_reltime tmp;
5579
5580 tmp.sec = wpa_s->conf->scan_res_valid_for_connect;
5581 tmp.usec = 0;
5582 os_reltime_sub(&tmp, &age, &clear_at);
5583 }
5584 eloop_register_timeout(clear_at.sec, clear_at.usec,
5585 wpas_clear_disabled_interface,
5586 wpa_s, NULL);
5587 radio_remove_works(wpa_s, NULL, 0);
5588
5589 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
5590 break;
5591 case EVENT_CHANNEL_LIST_CHANGED:
5592 wpa_supplicant_update_channel_list(
5593 wpa_s, &data->channel_list_changed);
5594 break;
5595 case EVENT_INTERFACE_UNAVAILABLE:
5596 wpas_p2p_interface_unavailable(wpa_s);
5597 break;
5598 case EVENT_BEST_CHANNEL:
5599 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
5600 "(%d %d %d)",
5601 data->best_chan.freq_24, data->best_chan.freq_5,
5602 data->best_chan.freq_overall);
5603 wpa_s->best_24_freq = data->best_chan.freq_24;
5604 wpa_s->best_5_freq = data->best_chan.freq_5;
5605 wpa_s->best_overall_freq = data->best_chan.freq_overall;
5606 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
5607 data->best_chan.freq_5,
5608 data->best_chan.freq_overall);
5609 break;
5610 case EVENT_UNPROT_DEAUTH:
5611 wpa_supplicant_event_unprot_deauth(wpa_s,
5612 &data->unprot_deauth);
5613 break;
5614 case EVENT_UNPROT_DISASSOC:
5615 wpa_supplicant_event_unprot_disassoc(wpa_s,
5616 &data->unprot_disassoc);
5617 break;
5618 case EVENT_STATION_LOW_ACK:
5619 #ifdef CONFIG_AP
5620 if (wpa_s->ap_iface && data)
5621 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
5622 data->low_ack.addr);
5623 #endif /* CONFIG_AP */
5624 #ifdef CONFIG_TDLS
5625 if (data)
5626 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
5627 data->low_ack.addr);
5628 #endif /* CONFIG_TDLS */
5629 break;
5630 case EVENT_IBSS_PEER_LOST:
5631 #ifdef CONFIG_IBSS_RSN
5632 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
5633 #endif /* CONFIG_IBSS_RSN */
5634 break;
5635 case EVENT_DRIVER_GTK_REKEY:
5636 if (os_memcmp(data->driver_gtk_rekey.bssid,
5637 wpa_s->bssid, ETH_ALEN))
5638 break;
5639 if (!wpa_s->wpa)
5640 break;
5641 wpa_sm_update_replay_ctr(wpa_s->wpa,
5642 data->driver_gtk_rekey.replay_ctr);
5643 break;
5644 case EVENT_SCHED_SCAN_STOPPED:
5645 wpa_s->sched_scanning = 0;
5646 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
5647 wpa_supplicant_notify_scanning(wpa_s, 0);
5648
5649 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
5650 break;
5651
5652 /*
5653 * If the driver stopped scanning without being requested to,
5654 * request a new scan to continue scanning for networks.
5655 */
5656 if (!wpa_s->sched_scan_stop_req &&
5657 wpa_s->wpa_state == WPA_SCANNING) {
5658 wpa_dbg(wpa_s, MSG_DEBUG,
5659 "Restart scanning after unexpected sched_scan stop event");
5660 wpa_supplicant_req_scan(wpa_s, 1, 0);
5661 break;
5662 }
5663
5664 wpa_s->sched_scan_stop_req = 0;
5665
5666 /*
5667 * Start a new sched scan to continue searching for more SSIDs
5668 * either if timed out or PNO schedule scan is pending.
5669 */
5670 if (wpa_s->sched_scan_timed_out) {
5671 wpa_supplicant_req_sched_scan(wpa_s);
5672 } else if (wpa_s->pno_sched_pending) {
5673 wpa_s->pno_sched_pending = 0;
5674 wpas_start_pno(wpa_s);
5675 } else if (resched) {
5676 wpa_supplicant_req_scan(wpa_s, 0, 0);
5677 }
5678
5679 break;
5680 case EVENT_WPS_BUTTON_PUSHED:
5681 #ifdef CONFIG_WPS
5682 wpas_wps_start_pbc(wpa_s, NULL, 0, 0);
5683 #endif /* CONFIG_WPS */
5684 break;
5685 case EVENT_AVOID_FREQUENCIES:
5686 wpa_supplicant_notify_avoid_freq(wpa_s, data);
5687 break;
5688 case EVENT_CONNECT_FAILED_REASON:
5689 #ifdef CONFIG_AP
5690 if (!wpa_s->ap_iface || !data)
5691 break;
5692 hostapd_event_connect_failed_reason(
5693 wpa_s->ap_iface->bss[0],
5694 data->connect_failed_reason.addr,
5695 data->connect_failed_reason.code);
5696 #endif /* CONFIG_AP */
5697 break;
5698 case EVENT_NEW_PEER_CANDIDATE:
5699 #ifdef CONFIG_MESH
5700 if (!wpa_s->ifmsh || !data)
5701 break;
5702 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
5703 data->mesh_peer.ies,
5704 data->mesh_peer.ie_len);
5705 #endif /* CONFIG_MESH */
5706 break;
5707 case EVENT_SURVEY:
5708 #ifdef CONFIG_AP
5709 if (!wpa_s->ap_iface)
5710 break;
5711 hostapd_event_get_survey(wpa_s->ap_iface,
5712 &data->survey_results);
5713 #endif /* CONFIG_AP */
5714 break;
5715 case EVENT_ACS_CHANNEL_SELECTED:
5716 #ifdef CONFIG_AP
5717 #ifdef CONFIG_ACS
5718 if (!wpa_s->ap_iface)
5719 break;
5720 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
5721 &data->acs_selected_channels);
5722 #endif /* CONFIG_ACS */
5723 #endif /* CONFIG_AP */
5724 break;
5725 case EVENT_P2P_LO_STOP:
5726 #ifdef CONFIG_P2P
5727 wpa_s->p2p_lo_started = 0;
5728 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP
5729 P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d",
5730 data->p2p_lo_stop.reason_code);
5731 #endif /* CONFIG_P2P */
5732 break;
5733 case EVENT_BEACON_LOSS:
5734 if (!wpa_s->current_bss || !wpa_s->current_ssid)
5735 break;
5736 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_BEACON_LOSS);
5737 bgscan_notify_beacon_loss(wpa_s);
5738 break;
5739 case EVENT_EXTERNAL_AUTH:
5740 #ifdef CONFIG_SAE
5741 if (!wpa_s->current_ssid) {
5742 wpa_printf(MSG_DEBUG, "SAE: current_ssid is NULL");
5743 break;
5744 }
5745 sme_external_auth_trigger(wpa_s, data);
5746 #endif /* CONFIG_SAE */
5747 break;
5748 case EVENT_PORT_AUTHORIZED:
5749 wpa_supplicant_event_port_authorized(wpa_s);
5750 break;
5751 case EVENT_STATION_OPMODE_CHANGED:
5752 #ifdef CONFIG_AP
5753 if (!wpa_s->ap_iface || !data)
5754 break;
5755
5756 hostapd_event_sta_opmode_changed(wpa_s->ap_iface->bss[0],
5757 data->sta_opmode.addr,
5758 data->sta_opmode.smps_mode,
5759 data->sta_opmode.chan_width,
5760 data->sta_opmode.rx_nss);
5761 #endif /* CONFIG_AP */
5762 break;
5763 case EVENT_UNPROT_BEACON:
5764 wpas_event_unprot_beacon(wpa_s, &data->unprot_beacon);
5765 break;
5766 case EVENT_TX_WAIT_EXPIRE:
5767 #ifdef CONFIG_DPP
5768 wpas_dpp_tx_wait_expire(wpa_s);
5769 #endif /* CONFIG_DPP */
5770 break;
5771 default:
5772 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
5773 break;
5774 }
5775 }
5776
5777
wpa_supplicant_event_global(void * ctx,enum wpa_event_type event,union wpa_event_data * data)5778 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
5779 union wpa_event_data *data)
5780 {
5781 struct wpa_supplicant *wpa_s;
5782
5783 if (event != EVENT_INTERFACE_STATUS)
5784 return;
5785
5786 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
5787 if (wpa_s && wpa_s->driver->get_ifindex) {
5788 unsigned int ifindex;
5789
5790 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
5791 if (ifindex != data->interface_status.ifindex) {
5792 wpa_dbg(wpa_s, MSG_DEBUG,
5793 "interface status ifindex %d mismatch (%d)",
5794 ifindex, data->interface_status.ifindex);
5795 return;
5796 }
5797 }
5798 #ifdef CONFIG_MATCH_IFACE
5799 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
5800 struct wpa_interface *wpa_i;
5801
5802 wpa_i = wpa_supplicant_match_iface(
5803 ctx, data->interface_status.ifname);
5804 if (!wpa_i)
5805 return;
5806 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
5807 os_free(wpa_i);
5808 }
5809 #endif /* CONFIG_MATCH_IFACE */
5810
5811 if (wpa_s)
5812 wpa_supplicant_event(wpa_s, event, data);
5813 }
5814
