1 /*
2 * WPA Supplicant - Driver event processing
3 * Copyright (c) 2003-2019, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "includes.h"
10
11 #include "common.h"
12 #include "eapol_supp/eapol_supp_sm.h"
13 #include "rsn_supp/wpa.h"
14 #include "eloop.h"
15 #include "config.h"
16 #include "l2_packet/l2_packet.h"
17 #include "wpa_supplicant_i.h"
18 #include "driver_i.h"
19 #include "pcsc_funcs.h"
20 #include "rsn_supp/preauth.h"
21 #include "rsn_supp/pmksa_cache.h"
22 #include "common/wpa_ctrl.h"
23 #include "eap_peer/eap.h"
24 #include "ap/hostapd.h"
25 #include "p2p/p2p.h"
26 #include "fst/fst.h"
27 #include "wnm_sta.h"
28 #include "notify.h"
29 #include "common/ieee802_11_defs.h"
30 #include "common/ieee802_11_common.h"
31 #include "common/gas_server.h"
32 #include "common/dpp.h"
33 #include "common/ptksa_cache.h"
34 #include "crypto/random.h"
35 #include "bssid_ignore.h"
36 #include "wpas_glue.h"
37 #include "wps_supplicant.h"
38 #include "ibss_rsn.h"
39 #include "sme.h"
40 #include "gas_query.h"
41 #include "p2p_supplicant.h"
42 #include "bgscan.h"
43 #include "autoscan.h"
44 #include "ap.h"
45 #include "bss.h"
46 #include "scan.h"
47 #include "offchannel.h"
48 #include "interworking.h"
49 #include "mesh.h"
50 #include "mesh_mpm.h"
51 #include "wmm_ac.h"
52 #include "dpp_supplicant.h"
53
54
55 #define MAX_OWE_TRANSITION_BSS_SELECT_COUNT 5
56
57
58 #ifndef CONFIG_NO_SCAN_PROCESSING
59 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
60 int new_scan, int own_request);
61 #endif /* CONFIG_NO_SCAN_PROCESSING */
62
63
wpas_temp_disabled(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)64 int wpas_temp_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid)
65 {
66 struct os_reltime now;
67
68 if (ssid == NULL || ssid->disabled_until.sec == 0)
69 return 0;
70
71 os_get_reltime(&now);
72 if (ssid->disabled_until.sec > now.sec)
73 return ssid->disabled_until.sec - now.sec;
74
75 wpas_clear_temp_disabled(wpa_s, ssid, 0);
76
77 return 0;
78 }
79
80
81 #ifndef CONFIG_NO_SCAN_PROCESSING
82 /**
83 * wpas_reenabled_network_time - Time until first network is re-enabled
84 * @wpa_s: Pointer to wpa_supplicant data
85 * Returns: If all enabled networks are temporarily disabled, returns the time
86 * (in sec) until the first network is re-enabled. Otherwise returns 0.
87 *
88 * This function is used in case all enabled networks are temporarily disabled,
89 * in which case it returns the time (in sec) that the first network will be
90 * re-enabled. The function assumes that at least one network is enabled.
91 */
wpas_reenabled_network_time(struct wpa_supplicant * wpa_s)92 static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
93 {
94 struct wpa_ssid *ssid;
95 int disabled_for, res = 0;
96
97 #ifdef CONFIG_INTERWORKING
98 if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
99 wpa_s->conf->cred)
100 return 0;
101 #endif /* CONFIG_INTERWORKING */
102
103 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
104 if (ssid->disabled)
105 continue;
106
107 disabled_for = wpas_temp_disabled(wpa_s, ssid);
108 if (!disabled_for)
109 return 0;
110
111 if (!res || disabled_for < res)
112 res = disabled_for;
113 }
114
115 return res;
116 }
117 #endif /* CONFIG_NO_SCAN_PROCESSING */
118
119
wpas_network_reenabled(void * eloop_ctx,void * timeout_ctx)120 void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
121 {
122 struct wpa_supplicant *wpa_s = eloop_ctx;
123
124 if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
125 return;
126
127 wpa_dbg(wpa_s, MSG_DEBUG,
128 "Try to associate due to network getting re-enabled");
129 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
130 wpa_supplicant_cancel_sched_scan(wpa_s);
131 wpa_supplicant_req_scan(wpa_s, 0, 0);
132 }
133 }
134
135
wpa_supplicant_get_new_bss(struct wpa_supplicant * wpa_s,const u8 * bssid)136 static struct wpa_bss * wpa_supplicant_get_new_bss(
137 struct wpa_supplicant *wpa_s, const u8 *bssid)
138 {
139 struct wpa_bss *bss = NULL;
140 struct wpa_ssid *ssid = wpa_s->current_ssid;
141
142 if (ssid->ssid_len > 0)
143 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
144 if (!bss)
145 bss = wpa_bss_get_bssid(wpa_s, bssid);
146
147 return bss;
148 }
149
150
wpa_supplicant_update_current_bss(struct wpa_supplicant * wpa_s)151 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
152 {
153 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
154
155 if (!bss) {
156 wpa_supplicant_update_scan_results(wpa_s);
157
158 /* Get the BSS from the new scan results */
159 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
160 }
161
162 if (bss)
163 wpa_s->current_bss = bss;
164 }
165
166
wpa_supplicant_select_config(struct wpa_supplicant * wpa_s)167 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
168 {
169 struct wpa_ssid *ssid, *old_ssid;
170 u8 drv_ssid[SSID_MAX_LEN];
171 size_t drv_ssid_len;
172 int res;
173
174 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
175 wpa_supplicant_update_current_bss(wpa_s);
176
177 if (wpa_s->current_ssid->ssid_len == 0)
178 return 0; /* current profile still in use */
179 res = wpa_drv_get_ssid(wpa_s, drv_ssid);
180 if (res < 0) {
181 wpa_msg(wpa_s, MSG_INFO,
182 "Failed to read SSID from driver");
183 return 0; /* try to use current profile */
184 }
185 drv_ssid_len = res;
186
187 if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
188 os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
189 drv_ssid_len) == 0)
190 return 0; /* current profile still in use */
191
192 #ifdef CONFIG_OWE
193 if ((wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
194 wpa_s->current_bss &&
195 (wpa_s->current_bss->flags & WPA_BSS_OWE_TRANSITION) &&
196 drv_ssid_len == wpa_s->current_bss->ssid_len &&
197 os_memcmp(drv_ssid, wpa_s->current_bss->ssid,
198 drv_ssid_len) == 0)
199 return 0; /* current profile still in use */
200 #endif /* CONFIG_OWE */
201
202 wpa_msg(wpa_s, MSG_DEBUG,
203 "Driver-initiated BSS selection changed the SSID to %s",
204 wpa_ssid_txt(drv_ssid, drv_ssid_len));
205 /* continue selecting a new network profile */
206 }
207
208 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
209 "information");
210 ssid = wpa_supplicant_get_ssid(wpa_s);
211 if (ssid == NULL) {
212 wpa_msg(wpa_s, MSG_INFO,
213 "No network configuration found for the current AP");
214 return -1;
215 }
216
217 if (wpas_network_disabled(wpa_s, ssid)) {
218 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
219 return -1;
220 }
221
222 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
223 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
224 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
225 return -1;
226 }
227
228 res = wpas_temp_disabled(wpa_s, ssid);
229 if (res > 0) {
230 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
231 "disabled for %d second(s)", res);
232 return -1;
233 }
234
235 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
236 "current AP");
237 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
238 u8 wpa_ie[80];
239 size_t wpa_ie_len = sizeof(wpa_ie);
240 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
241 wpa_ie, &wpa_ie_len) < 0)
242 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
243 } else {
244 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
245 }
246
247 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
248 eapol_sm_invalidate_cached_session(wpa_s->eapol);
249 old_ssid = wpa_s->current_ssid;
250 wpa_s->current_ssid = ssid;
251
252 wpa_supplicant_update_current_bss(wpa_s);
253
254 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
255 wpa_supplicant_initiate_eapol(wpa_s);
256 if (old_ssid != wpa_s->current_ssid)
257 wpas_notify_network_changed(wpa_s);
258
259 return 0;
260 }
261
262
wpa_supplicant_stop_countermeasures(void * eloop_ctx,void * sock_ctx)263 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
264 {
265 struct wpa_supplicant *wpa_s = eloop_ctx;
266
267 if (wpa_s->countermeasures) {
268 wpa_s->countermeasures = 0;
269 wpa_drv_set_countermeasures(wpa_s, 0);
270 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
271
272 /*
273 * It is possible that the device is sched scanning, which means
274 * that a connection attempt will be done only when we receive
275 * scan results. However, in this case, it would be preferable
276 * to scan and connect immediately, so cancel the sched_scan and
277 * issue a regular scan flow.
278 */
279 wpa_supplicant_cancel_sched_scan(wpa_s);
280 wpa_supplicant_req_scan(wpa_s, 0, 0);
281 }
282 }
283
284
wpa_supplicant_mark_disassoc(struct wpa_supplicant * wpa_s)285 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
286 {
287 int bssid_changed;
288
289 wnm_bss_keep_alive_deinit(wpa_s);
290
291 #ifdef CONFIG_IBSS_RSN
292 ibss_rsn_deinit(wpa_s->ibss_rsn);
293 wpa_s->ibss_rsn = NULL;
294 #endif /* CONFIG_IBSS_RSN */
295
296 #ifdef CONFIG_AP
297 wpa_supplicant_ap_deinit(wpa_s);
298 #endif /* CONFIG_AP */
299
300 #ifdef CONFIG_HS20
301 /* Clear possibly configured frame filters */
302 wpa_drv_configure_frame_filters(wpa_s, 0);
303 #endif /* CONFIG_HS20 */
304
305 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
306 return;
307
308 if (os_reltime_initialized(&wpa_s->session_start)) {
309 os_reltime_age(&wpa_s->session_start, &wpa_s->session_length);
310 wpa_s->session_start.sec = 0;
311 wpa_s->session_start.usec = 0;
312 wpas_notify_session_length(wpa_s);
313 }
314
315 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
316 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
317 os_memset(wpa_s->bssid, 0, ETH_ALEN);
318 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
319 sme_clear_on_disassoc(wpa_s);
320 wpa_s->current_bss = NULL;
321 wpa_s->assoc_freq = 0;
322
323 if (bssid_changed)
324 wpas_notify_bssid_changed(wpa_s);
325
326 eapol_sm_notify_portEnabled(wpa_s->eapol, false);
327 eapol_sm_notify_portValid(wpa_s->eapol, false);
328 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
329 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE ||
330 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP || wpa_s->drv_authorized_port)
331 eapol_sm_notify_eap_success(wpa_s->eapol, false);
332 wpa_s->drv_authorized_port = 0;
333 wpa_s->ap_ies_from_associnfo = 0;
334 wpa_s->current_ssid = NULL;
335 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
336 wpa_s->key_mgmt = 0;
337
338 wpas_rrm_reset(wpa_s);
339 wpa_s->wnmsleep_used = 0;
340 wnm_clear_coloc_intf_reporting(wpa_s);
341 wpa_s->disable_mbo_oce = 0;
342
343 #ifdef CONFIG_TESTING_OPTIONS
344 wpa_s->last_tk_alg = WPA_ALG_NONE;
345 os_memset(wpa_s->last_tk, 0, sizeof(wpa_s->last_tk));
346 #endif /* CONFIG_TESTING_OPTIONS */
347 wpa_s->ieee80211ac = 0;
348
349 if (wpa_s->enabled_4addr_mode && wpa_drv_set_4addr_mode(wpa_s, 0) == 0)
350 wpa_s->enabled_4addr_mode = 0;
351 }
352
353
wpa_find_assoc_pmkid(struct wpa_supplicant * wpa_s)354 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
355 {
356 struct wpa_ie_data ie;
357 int pmksa_set = -1;
358 size_t i;
359 struct rsn_pmksa_cache_entry *cur_pmksa;
360
361 /* Start with assumption of no PMKSA cache entry match for cases other
362 * than SAE. In particular, this is needed to generate the PMKSA cache
363 * entries for Suite B cases with driver-based roaming indication. */
364 cur_pmksa = pmksa_cache_get_current(wpa_s->wpa);
365 if (cur_pmksa && !wpa_key_mgmt_sae(cur_pmksa->akmp))
366 pmksa_cache_clear_current(wpa_s->wpa);
367
368 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
369 ie.pmkid == NULL)
370 return;
371
372 for (i = 0; i < ie.num_pmkid; i++) {
373 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
374 ie.pmkid + i * PMKID_LEN,
375 NULL, NULL, 0, NULL, 0);
376 if (pmksa_set == 0) {
377 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
378 break;
379 }
380 }
381
382 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
383 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
384 }
385
386
wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant * wpa_s,union wpa_event_data * data)387 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
388 union wpa_event_data *data)
389 {
390 if (data == NULL) {
391 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
392 "event");
393 return;
394 }
395 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
396 " index=%d preauth=%d",
397 MAC2STR(data->pmkid_candidate.bssid),
398 data->pmkid_candidate.index,
399 data->pmkid_candidate.preauth);
400
401 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
402 data->pmkid_candidate.index,
403 data->pmkid_candidate.preauth);
404 }
405
406
wpa_supplicant_dynamic_keys(struct wpa_supplicant * wpa_s)407 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
408 {
409 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
410 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
411 return 0;
412
413 #ifdef IEEE8021X_EAPOL
414 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
415 wpa_s->current_ssid &&
416 !(wpa_s->current_ssid->eapol_flags &
417 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
418 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
419 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
420 * plaintext or static WEP keys). */
421 return 0;
422 }
423 #endif /* IEEE8021X_EAPOL */
424
425 return 1;
426 }
427
428
429 /**
430 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
431 * @wpa_s: pointer to wpa_supplicant data
432 * @ssid: Configuration data for the network
433 * Returns: 0 on success, -1 on failure
434 *
435 * This function is called when starting authentication with a network that is
436 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
437 */
wpa_supplicant_scard_init(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)438 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
439 struct wpa_ssid *ssid)
440 {
441 #ifdef IEEE8021X_EAPOL
442 #ifdef PCSC_FUNCS
443 int aka = 0, sim = 0;
444
445 if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
446 wpa_s->scard != NULL || wpa_s->conf->external_sim)
447 return 0;
448
449 if (ssid == NULL || ssid->eap.eap_methods == NULL) {
450 sim = 1;
451 aka = 1;
452 } else {
453 struct eap_method_type *eap = ssid->eap.eap_methods;
454 while (eap->vendor != EAP_VENDOR_IETF ||
455 eap->method != EAP_TYPE_NONE) {
456 if (eap->vendor == EAP_VENDOR_IETF) {
457 if (eap->method == EAP_TYPE_SIM)
458 sim = 1;
459 else if (eap->method == EAP_TYPE_AKA ||
460 eap->method == EAP_TYPE_AKA_PRIME)
461 aka = 1;
462 }
463 eap++;
464 }
465 }
466
467 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
468 sim = 0;
469 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
470 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
471 NULL)
472 aka = 0;
473
474 if (!sim && !aka) {
475 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
476 "use SIM, but neither EAP-SIM nor EAP-AKA are "
477 "enabled");
478 return 0;
479 }
480
481 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
482 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
483
484 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
485 if (wpa_s->scard == NULL) {
486 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
487 "(pcsc-lite)");
488 return -1;
489 }
490 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
491 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
492 #endif /* PCSC_FUNCS */
493 #endif /* IEEE8021X_EAPOL */
494
495 return 0;
496 }
497
498
499 #ifndef CONFIG_NO_SCAN_PROCESSING
500
501 #ifdef CONFIG_WEP
has_wep_key(struct wpa_ssid * ssid)502 static int has_wep_key(struct wpa_ssid *ssid)
503 {
504 int i;
505
506 for (i = 0; i < NUM_WEP_KEYS; i++) {
507 if (ssid->wep_key_len[i])
508 return 1;
509 }
510
511 return 0;
512 }
513 #endif /* CONFIG_WEP */
514
515
wpa_supplicant_match_privacy(struct wpa_bss * bss,struct wpa_ssid * ssid)516 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
517 struct wpa_ssid *ssid)
518 {
519 int privacy = 0;
520
521 if (ssid->mixed_cell)
522 return 1;
523
524 #ifdef CONFIG_WPS
525 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
526 return 1;
527 #endif /* CONFIG_WPS */
528
529 #ifdef CONFIG_OWE
530 if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only)
531 return 1;
532 #endif /* CONFIG_OWE */
533
534 #ifdef CONFIG_WEP
535 if (has_wep_key(ssid))
536 privacy = 1;
537 #endif /* CONFIG_WEP */
538
539 #ifdef IEEE8021X_EAPOL
540 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
541 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
542 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
543 privacy = 1;
544 #endif /* IEEE8021X_EAPOL */
545
546 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
547 privacy = 1;
548
549 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
550 privacy = 1;
551
552 if (bss->caps & IEEE80211_CAP_PRIVACY)
553 return privacy;
554 return !privacy;
555 }
556
557
wpa_supplicant_ssid_bss_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss,int debug_print)558 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
559 struct wpa_ssid *ssid,
560 struct wpa_bss *bss, int debug_print)
561 {
562 struct wpa_ie_data ie;
563 int proto_match = 0;
564 const u8 *rsn_ie, *wpa_ie;
565 int ret;
566 #ifdef CONFIG_WEP
567 int wep_ok;
568 #endif /* CONFIG_WEP */
569
570 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
571 if (ret >= 0)
572 return ret;
573
574 #ifdef CONFIG_WEP
575 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
576 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
577 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
578 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
579 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
580 #endif /* CONFIG_WEP */
581
582 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
583 while ((ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)) && rsn_ie) {
584 proto_match++;
585
586 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
587 if (debug_print)
588 wpa_dbg(wpa_s, MSG_DEBUG,
589 " skip RSN IE - parse failed");
590 break;
591 }
592 if (!ie.has_pairwise)
593 ie.pairwise_cipher = wpa_default_rsn_cipher(bss->freq);
594 if (!ie.has_group)
595 ie.group_cipher = wpa_default_rsn_cipher(bss->freq);
596
597 #ifdef CONFIG_WEP
598 if (wep_ok &&
599 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
600 {
601 if (debug_print)
602 wpa_dbg(wpa_s, MSG_DEBUG,
603 " selected based on TSN in RSN IE");
604 return 1;
605 }
606 #endif /* CONFIG_WEP */
607
608 if (!(ie.proto & ssid->proto) &&
609 !(ssid->proto & WPA_PROTO_OSEN)) {
610 if (debug_print)
611 wpa_dbg(wpa_s, MSG_DEBUG,
612 " skip RSN IE - proto mismatch");
613 break;
614 }
615
616 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
617 if (debug_print)
618 wpa_dbg(wpa_s, MSG_DEBUG,
619 " skip RSN IE - PTK cipher mismatch");
620 break;
621 }
622
623 if (!(ie.group_cipher & ssid->group_cipher)) {
624 if (debug_print)
625 wpa_dbg(wpa_s, MSG_DEBUG,
626 " skip RSN IE - GTK cipher mismatch");
627 break;
628 }
629
630 if (ssid->group_mgmt_cipher &&
631 !(ie.mgmt_group_cipher & ssid->group_mgmt_cipher)) {
632 if (debug_print)
633 wpa_dbg(wpa_s, MSG_DEBUG,
634 " skip RSN IE - group mgmt cipher mismatch");
635 break;
636 }
637
638 if (!(ie.key_mgmt & ssid->key_mgmt)) {
639 if (debug_print)
640 wpa_dbg(wpa_s, MSG_DEBUG,
641 " skip RSN IE - key mgmt mismatch");
642 break;
643 }
644
645 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
646 wpas_get_ssid_pmf(wpa_s, ssid) ==
647 MGMT_FRAME_PROTECTION_REQUIRED) {
648 if (debug_print)
649 wpa_dbg(wpa_s, MSG_DEBUG,
650 " skip RSN IE - no mgmt frame protection");
651 break;
652 }
653 if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
654 wpas_get_ssid_pmf(wpa_s, ssid) ==
655 NO_MGMT_FRAME_PROTECTION) {
656 if (debug_print)
657 wpa_dbg(wpa_s, MSG_DEBUG,
658 " skip RSN IE - no mgmt frame protection enabled but AP requires it");
659 break;
660 }
661
662 if (debug_print)
663 wpa_dbg(wpa_s, MSG_DEBUG,
664 " selected based on RSN IE");
665 return 1;
666 }
667
668 if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED &&
669 (!(ssid->key_mgmt & WPA_KEY_MGMT_OWE) || ssid->owe_only)) {
670 if (debug_print)
671 wpa_dbg(wpa_s, MSG_DEBUG,
672 " skip - MFP Required but network not MFP Capable");
673 return 0;
674 }
675
676 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
677 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
678 proto_match++;
679
680 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
681 if (debug_print)
682 wpa_dbg(wpa_s, MSG_DEBUG,
683 " skip WPA IE - parse failed");
684 break;
685 }
686
687 #ifdef CONFIG_WEP
688 if (wep_ok &&
689 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
690 {
691 if (debug_print)
692 wpa_dbg(wpa_s, MSG_DEBUG,
693 " selected based on TSN in WPA IE");
694 return 1;
695 }
696 #endif /* CONFIG_WEP */
697
698 if (!(ie.proto & ssid->proto)) {
699 if (debug_print)
700 wpa_dbg(wpa_s, MSG_DEBUG,
701 " skip WPA IE - proto mismatch");
702 break;
703 }
704
705 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
706 if (debug_print)
707 wpa_dbg(wpa_s, MSG_DEBUG,
708 " skip WPA IE - PTK cipher mismatch");
709 break;
710 }
711
712 if (!(ie.group_cipher & ssid->group_cipher)) {
713 if (debug_print)
714 wpa_dbg(wpa_s, MSG_DEBUG,
715 " skip WPA IE - GTK cipher mismatch");
716 break;
717 }
718
719 if (!(ie.key_mgmt & ssid->key_mgmt)) {
720 if (debug_print)
721 wpa_dbg(wpa_s, MSG_DEBUG,
722 " skip WPA IE - key mgmt mismatch");
723 break;
724 }
725
726 if (debug_print)
727 wpa_dbg(wpa_s, MSG_DEBUG,
728 " selected based on WPA IE");
729 return 1;
730 }
731
732 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
733 !rsn_ie) {
734 if (debug_print)
735 wpa_dbg(wpa_s, MSG_DEBUG,
736 " allow for non-WPA IEEE 802.1X");
737 return 1;
738 }
739
740 #ifdef CONFIG_OWE
741 if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only &&
742 !wpa_ie && !rsn_ie) {
743 if (wpa_s->owe_transition_select &&
744 wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE) &&
745 ssid->owe_transition_bss_select_count + 1 <=
746 MAX_OWE_TRANSITION_BSS_SELECT_COUNT) {
747 ssid->owe_transition_bss_select_count++;
748 if (debug_print)
749 wpa_dbg(wpa_s, MSG_DEBUG,
750 " skip OWE transition BSS (selection count %d does not exceed %d)",
751 ssid->owe_transition_bss_select_count,
752 MAX_OWE_TRANSITION_BSS_SELECT_COUNT);
753 wpa_s->owe_transition_search = 1;
754 return 0;
755 }
756 if (debug_print)
757 wpa_dbg(wpa_s, MSG_DEBUG,
758 " allow in OWE transition mode");
759 return 1;
760 }
761 #endif /* CONFIG_OWE */
762
763 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
764 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
765 if (debug_print)
766 wpa_dbg(wpa_s, MSG_DEBUG,
767 " skip - no WPA/RSN proto match");
768 return 0;
769 }
770
771 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
772 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
773 if (debug_print)
774 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
775 return 1;
776 }
777
778 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
779 if (debug_print)
780 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
781 return 1;
782 }
783
784 if (debug_print)
785 wpa_dbg(wpa_s, MSG_DEBUG,
786 " reject due to mismatch with WPA/WPA2");
787
788 return 0;
789 }
790
791
freq_allowed(int * freqs,int freq)792 static int freq_allowed(int *freqs, int freq)
793 {
794 int i;
795
796 if (freqs == NULL)
797 return 1;
798
799 for (i = 0; freqs[i]; i++)
800 if (freqs[i] == freq)
801 return 1;
802 return 0;
803 }
804
805
rate_match(struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid,struct wpa_bss * bss,int debug_print)806 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
807 struct wpa_bss *bss, int debug_print)
808 {
809 const struct hostapd_hw_modes *mode = NULL, *modes;
810 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
811 const u8 *rate_ie;
812 int i, j, k;
813
814 if (bss->freq == 0)
815 return 1; /* Cannot do matching without knowing band */
816
817 modes = wpa_s->hw.modes;
818 if (modes == NULL) {
819 /*
820 * The driver does not provide any additional information
821 * about the utilized hardware, so allow the connection attempt
822 * to continue.
823 */
824 return 1;
825 }
826
827 for (i = 0; i < wpa_s->hw.num_modes; i++) {
828 for (j = 0; j < modes[i].num_channels; j++) {
829 int freq = modes[i].channels[j].freq;
830 if (freq == bss->freq) {
831 if (mode &&
832 mode->mode == HOSTAPD_MODE_IEEE80211G)
833 break; /* do not allow 802.11b replace
834 * 802.11g */
835 mode = &modes[i];
836 break;
837 }
838 }
839 }
840
841 if (mode == NULL)
842 return 0;
843
844 for (i = 0; i < (int) sizeof(scan_ie); i++) {
845 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
846 if (rate_ie == NULL)
847 continue;
848
849 for (j = 2; j < rate_ie[1] + 2; j++) {
850 int flagged = !!(rate_ie[j] & 0x80);
851 int r = (rate_ie[j] & 0x7f) * 5;
852
853 /*
854 * IEEE Std 802.11n-2009 7.3.2.2:
855 * The new BSS Membership selector value is encoded
856 * like a legacy basic rate, but it is not a rate and
857 * only indicates if the BSS members are required to
858 * support the mandatory features of Clause 20 [HT PHY]
859 * in order to join the BSS.
860 */
861 if (flagged && ((rate_ie[j] & 0x7f) ==
862 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
863 if (!ht_supported(mode)) {
864 if (debug_print)
865 wpa_dbg(wpa_s, MSG_DEBUG,
866 " hardware does not support HT PHY");
867 return 0;
868 }
869 continue;
870 }
871
872 /* There's also a VHT selector for 802.11ac */
873 if (flagged && ((rate_ie[j] & 0x7f) ==
874 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
875 if (!vht_supported(mode)) {
876 if (debug_print)
877 wpa_dbg(wpa_s, MSG_DEBUG,
878 " hardware does not support VHT PHY");
879 return 0;
880 }
881 continue;
882 }
883
884 #ifdef CONFIG_SAE
885 if (flagged && ((rate_ie[j] & 0x7f) ==
886 BSS_MEMBERSHIP_SELECTOR_SAE_H2E_ONLY)) {
887 if (wpa_s->conf->sae_pwe == 0 &&
888 !ssid->sae_password_id &&
889 wpa_key_mgmt_sae(ssid->key_mgmt)) {
890 if (debug_print)
891 wpa_dbg(wpa_s, MSG_DEBUG,
892 " SAE H2E disabled");
893 #ifdef CONFIG_TESTING_OPTIONS
894 if (wpa_s->ignore_sae_h2e_only) {
895 wpa_dbg(wpa_s, MSG_DEBUG,
896 "TESTING: Ignore SAE H2E requirement mismatch");
897 continue;
898 }
899 #endif /* CONFIG_TESTING_OPTIONS */
900 return 0;
901 }
902 continue;
903 }
904 #endif /* CONFIG_SAE */
905
906 if (!flagged)
907 continue;
908
909 /* check for legacy basic rates */
910 for (k = 0; k < mode->num_rates; k++) {
911 if (mode->rates[k] == r)
912 break;
913 }
914 if (k == mode->num_rates) {
915 /*
916 * IEEE Std 802.11-2007 7.3.2.2 demands that in
917 * order to join a BSS all required rates
918 * have to be supported by the hardware.
919 */
920 if (debug_print)
921 wpa_dbg(wpa_s, MSG_DEBUG,
922 " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
923 r / 10, r % 10,
924 bss->freq, mode->mode, mode->num_rates);
925 return 0;
926 }
927 }
928 }
929
930 return 1;
931 }
932
933
934 /*
935 * Test whether BSS is in an ESS.
936 * This is done differently in DMG (60 GHz) and non-DMG bands
937 */
bss_is_ess(struct wpa_bss * bss)938 static int bss_is_ess(struct wpa_bss *bss)
939 {
940 if (bss_is_dmg(bss)) {
941 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
942 IEEE80211_CAP_DMG_AP;
943 }
944
945 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
946 IEEE80211_CAP_ESS);
947 }
948
949
match_mac_mask(const u8 * addr_a,const u8 * addr_b,const u8 * mask)950 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
951 {
952 size_t i;
953
954 for (i = 0; i < ETH_ALEN; i++) {
955 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
956 return 0;
957 }
958 return 1;
959 }
960
961
addr_in_list(const u8 * addr,const u8 * list,size_t num)962 static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
963 {
964 size_t i;
965
966 for (i = 0; i < num; i++) {
967 const u8 *a = list + i * ETH_ALEN * 2;
968 const u8 *m = a + ETH_ALEN;
969
970 if (match_mac_mask(a, addr, m))
971 return 1;
972 }
973 return 0;
974 }
975
976
owe_trans_ssid(struct wpa_supplicant * wpa_s,struct wpa_bss * bss,const u8 ** ret_ssid,size_t * ret_ssid_len)977 static void owe_trans_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
978 const u8 **ret_ssid, size_t *ret_ssid_len)
979 {
980 #ifdef CONFIG_OWE
981 const u8 *owe, *pos, *end, *bssid;
982 u8 ssid_len;
983 struct wpa_bss *open_bss;
984
985 owe = wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE);
986 if (!owe || !wpa_bss_get_ie(bss, WLAN_EID_RSN))
987 return;
988
989 pos = owe + 6;
990 end = owe + 2 + owe[1];
991
992 if (end - pos < ETH_ALEN + 1)
993 return;
994 bssid = pos;
995 pos += ETH_ALEN;
996 ssid_len = *pos++;
997 if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN)
998 return;
999
1000 /* Match the profile SSID against the OWE transition mode SSID on the
1001 * open network. */
1002 wpa_dbg(wpa_s, MSG_DEBUG, "OWE: transition mode BSSID: " MACSTR
1003 " SSID: %s", MAC2STR(bssid), wpa_ssid_txt(pos, ssid_len));
1004 *ret_ssid = pos;
1005 *ret_ssid_len = ssid_len;
1006
1007 if (!(bss->flags & WPA_BSS_OWE_TRANSITION)) {
1008 struct wpa_ssid *ssid;
1009
1010 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1011 if (wpas_network_disabled(wpa_s, ssid))
1012 continue;
1013 if (ssid->ssid_len == ssid_len &&
1014 os_memcmp(ssid->ssid, pos, ssid_len) == 0) {
1015 /* OWE BSS in transition mode for a currently
1016 * enabled OWE network. */
1017 wpa_dbg(wpa_s, MSG_DEBUG,
1018 "OWE: transition mode OWE SSID for active OWE profile");
1019 bss->flags |= WPA_BSS_OWE_TRANSITION;
1020 break;
1021 }
1022 }
1023 }
1024
1025 if (bss->ssid_len > 0)
1026 return;
1027
1028 open_bss = wpa_bss_get_bssid_latest(wpa_s, bssid);
1029 if (!open_bss)
1030 return;
1031 if (ssid_len != open_bss->ssid_len ||
1032 os_memcmp(pos, open_bss->ssid, ssid_len) != 0) {
1033 wpa_dbg(wpa_s, MSG_DEBUG,
1034 "OWE: transition mode SSID mismatch: %s",
1035 wpa_ssid_txt(open_bss->ssid, open_bss->ssid_len));
1036 return;
1037 }
1038
1039 owe = wpa_bss_get_vendor_ie(open_bss, OWE_IE_VENDOR_TYPE);
1040 if (!owe || wpa_bss_get_ie(open_bss, WLAN_EID_RSN)) {
1041 wpa_dbg(wpa_s, MSG_DEBUG,
1042 "OWE: transition mode open BSS unexpected info");
1043 return;
1044 }
1045
1046 pos = owe + 6;
1047 end = owe + 2 + owe[1];
1048
1049 if (end - pos < ETH_ALEN + 1)
1050 return;
1051 if (os_memcmp(pos, bss->bssid, ETH_ALEN) != 0) {
1052 wpa_dbg(wpa_s, MSG_DEBUG,
1053 "OWE: transition mode BSSID mismatch: " MACSTR,
1054 MAC2STR(pos));
1055 return;
1056 }
1057 pos += ETH_ALEN;
1058 ssid_len = *pos++;
1059 if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN)
1060 return;
1061 wpa_dbg(wpa_s, MSG_DEBUG, "OWE: learned transition mode OWE SSID: %s",
1062 wpa_ssid_txt(pos, ssid_len));
1063 os_memcpy(bss->ssid, pos, ssid_len);
1064 bss->ssid_len = ssid_len;
1065 bss->flags |= WPA_BSS_OWE_TRANSITION;
1066 #endif /* CONFIG_OWE */
1067 }
1068
1069
disabled_freq(struct wpa_supplicant * wpa_s,int freq)1070 static int disabled_freq(struct wpa_supplicant *wpa_s, int freq)
1071 {
1072 int i, j;
1073
1074 if (!wpa_s->hw.modes || !wpa_s->hw.num_modes)
1075 return 0;
1076
1077 for (j = 0; j < wpa_s->hw.num_modes; j++) {
1078 struct hostapd_hw_modes *mode = &wpa_s->hw.modes[j];
1079
1080 for (i = 0; i < mode->num_channels; i++) {
1081 struct hostapd_channel_data *chan = &mode->channels[i];
1082
1083 if (chan->freq == freq)
1084 return !!(chan->flag & HOSTAPD_CHAN_DISABLED);
1085 }
1086 }
1087
1088 return 1;
1089 }
1090
1091
1092 static bool wpa_scan_res_ok(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
1093 const u8 *match_ssid, size_t match_ssid_len,
1094 struct wpa_bss *bss, int bssid_ignore_count,
1095 bool debug_print);
1096
1097
1098 #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)1099 static bool sae_pk_acceptable_bss_with_pk(struct wpa_supplicant *wpa_s,
1100 struct wpa_bss *orig_bss,
1101 struct wpa_ssid *ssid,
1102 const u8 *match_ssid,
1103 size_t match_ssid_len)
1104 {
1105 struct wpa_bss *bss;
1106
1107 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1108 int count;
1109 const u8 *ie;
1110
1111 if (bss == orig_bss)
1112 continue;
1113 ie = wpa_bss_get_ie(bss, WLAN_EID_RSNX);
1114 if (!(ieee802_11_rsnx_capab(ie, WLAN_RSNX_CAPAB_SAE_PK)))
1115 continue;
1116
1117 /* TODO: Could be more thorough in checking what kind of
1118 * signal strength or throughput estimate would be acceptable
1119 * compared to the originally selected BSS. */
1120 if (bss->est_throughput < 2000)
1121 return false;
1122
1123 count = wpa_bssid_ignore_is_listed(wpa_s, bss->bssid);
1124 if (wpa_scan_res_ok(wpa_s, ssid, match_ssid, match_ssid_len,
1125 bss, count, 0))
1126 return true;
1127 }
1128
1129 return false;
1130 }
1131 #endif /* CONFIG_SAE_PK */
1132
1133
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)1134 static bool wpa_scan_res_ok(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
1135 const u8 *match_ssid, size_t match_ssid_len,
1136 struct wpa_bss *bss, int bssid_ignore_count,
1137 bool debug_print)
1138 {
1139 int res;
1140 bool wpa, check_ssid, osen, rsn_osen = false;
1141 struct wpa_ie_data data;
1142 #ifdef CONFIG_MBO
1143 const u8 *assoc_disallow;
1144 #endif /* CONFIG_MBO */
1145 #ifdef CONFIG_SAE
1146 u8 rsnxe_capa = 0;
1147 #endif /* CONFIG_SAE */
1148 const u8 *ie;
1149
1150 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1151 wpa = ie && ie[1];
1152 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1153 wpa |= ie && ie[1];
1154 if (ie && wpa_parse_wpa_ie_rsn(ie, 2 + ie[1], &data) == 0 &&
1155 (data.key_mgmt & WPA_KEY_MGMT_OSEN))
1156 rsn_osen = true;
1157 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
1158 osen = ie != NULL;
1159
1160 #ifdef CONFIG_SAE
1161 ie = wpa_bss_get_ie(bss, WLAN_EID_RSNX);
1162 if (ie && ie[1] >= 1)
1163 rsnxe_capa = ie[2];
1164 #endif /* CONFIG_SAE */
1165
1166 check_ssid = wpa || ssid->ssid_len > 0;
1167
1168 if (wpas_network_disabled(wpa_s, ssid)) {
1169 if (debug_print)
1170 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
1171 return false;
1172 }
1173
1174 res = wpas_temp_disabled(wpa_s, ssid);
1175 if (res > 0) {
1176 if (debug_print)
1177 wpa_dbg(wpa_s, MSG_DEBUG,
1178 " skip - disabled temporarily for %d second(s)",
1179 res);
1180 return false;
1181 }
1182
1183 #ifdef CONFIG_WPS
1184 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && bssid_ignore_count) {
1185 if (debug_print)
1186 wpa_dbg(wpa_s, MSG_DEBUG,
1187 " skip - BSSID ignored (WPS)");
1188 return false;
1189 }
1190
1191 if (wpa && ssid->ssid_len == 0 &&
1192 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
1193 check_ssid = false;
1194
1195 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
1196 /* Only allow wildcard SSID match if an AP advertises active
1197 * WPS operation that matches our mode. */
1198 check_ssid = ssid->ssid_len > 0 ||
1199 !wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss);
1200 }
1201 #endif /* CONFIG_WPS */
1202
1203 if (ssid->bssid_set && ssid->ssid_len == 0 &&
1204 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
1205 check_ssid = false;
1206
1207 if (check_ssid &&
1208 (match_ssid_len != ssid->ssid_len ||
1209 os_memcmp(match_ssid, ssid->ssid, match_ssid_len) != 0)) {
1210 if (debug_print)
1211 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
1212 return false;
1213 }
1214
1215 if (ssid->bssid_set &&
1216 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
1217 if (debug_print)
1218 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
1219 return false;
1220 }
1221
1222 /* check the list of BSSIDs to ignore */
1223 if (ssid->num_bssid_ignore &&
1224 addr_in_list(bss->bssid, ssid->bssid_ignore,
1225 ssid->num_bssid_ignore)) {
1226 if (debug_print)
1227 wpa_dbg(wpa_s, MSG_DEBUG,
1228 " skip - BSSID configured to be ignored");
1229 return false;
1230 }
1231
1232 /* if there is a list of accepted BSSIDs, only accept those APs */
1233 if (ssid->num_bssid_accept &&
1234 !addr_in_list(bss->bssid, ssid->bssid_accept,
1235 ssid->num_bssid_accept)) {
1236 if (debug_print)
1237 wpa_dbg(wpa_s, MSG_DEBUG,
1238 " skip - BSSID not in list of accepted values");
1239 return false;
1240 }
1241
1242 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss, debug_print))
1243 return false;
1244
1245 if (!osen && !wpa &&
1246 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
1247 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
1248 !(ssid->key_mgmt & WPA_KEY_MGMT_OWE) &&
1249 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
1250 if (debug_print)
1251 wpa_dbg(wpa_s, MSG_DEBUG,
1252 " skip - non-WPA network not allowed");
1253 return false;
1254 }
1255
1256 #ifdef CONFIG_WEP
1257 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) && has_wep_key(ssid)) {
1258 if (debug_print)
1259 wpa_dbg(wpa_s, MSG_DEBUG,
1260 " skip - ignore WPA/WPA2 AP for WEP network block");
1261 return false;
1262 }
1263 #endif /* CONFIG_WEP */
1264
1265 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen && !rsn_osen) {
1266 if (debug_print)
1267 wpa_dbg(wpa_s, MSG_DEBUG,
1268 " skip - non-OSEN network not allowed");
1269 return false;
1270 }
1271
1272 if (!wpa_supplicant_match_privacy(bss, ssid)) {
1273 if (debug_print)
1274 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy mismatch");
1275 return false;
1276 }
1277
1278 if (ssid->mode != WPAS_MODE_MESH && !bss_is_ess(bss) &&
1279 !bss_is_pbss(bss)) {
1280 if (debug_print)
1281 wpa_dbg(wpa_s, MSG_DEBUG,
1282 " skip - not ESS, PBSS, or MBSS");
1283 return false;
1284 }
1285
1286 if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) {
1287 if (debug_print)
1288 wpa_dbg(wpa_s, MSG_DEBUG,
1289 " skip - PBSS mismatch (ssid %d bss %d)",
1290 ssid->pbss, bss_is_pbss(bss));
1291 return false;
1292 }
1293
1294 if (!freq_allowed(ssid->freq_list, bss->freq)) {
1295 if (debug_print)
1296 wpa_dbg(wpa_s, MSG_DEBUG,
1297 " skip - frequency not allowed");
1298 return false;
1299 }
1300
1301 #ifdef CONFIG_MESH
1302 if (ssid->mode == WPAS_MODE_MESH && ssid->frequency > 0 &&
1303 ssid->frequency != bss->freq) {
1304 if (debug_print)
1305 wpa_dbg(wpa_s, MSG_DEBUG,
1306 " skip - frequency not allowed (mesh)");
1307 return false;
1308 }
1309 #endif /* CONFIG_MESH */
1310
1311 if (!rate_match(wpa_s, ssid, bss, debug_print)) {
1312 if (debug_print)
1313 wpa_dbg(wpa_s, MSG_DEBUG,
1314 " skip - rate sets do not match");
1315 return false;
1316 }
1317
1318 #ifdef CONFIG_SAE
1319 if ((wpa_s->conf->sae_pwe == 1 || ssid->sae_password_id) &&
1320 wpa_s->conf->sae_pwe != 3 && wpa_key_mgmt_sae(ssid->key_mgmt) &&
1321 !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_H2E))) {
1322 if (debug_print)
1323 wpa_dbg(wpa_s, MSG_DEBUG,
1324 " skip - SAE H2E required, but not supported by the AP");
1325 return false;
1326 }
1327 #endif /* CONFIG_SAE */
1328
1329 #ifdef CONFIG_SAE_PK
1330 if (ssid->sae_pk == SAE_PK_MODE_ONLY &&
1331 !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_PK))) {
1332 if (debug_print)
1333 wpa_dbg(wpa_s, MSG_DEBUG,
1334 " skip - SAE-PK required, but not supported by the AP");
1335 return false;
1336 }
1337 #endif /* CONFIG_SAE_PK */
1338
1339 #ifndef CONFIG_IBSS_RSN
1340 if (ssid->mode == WPAS_MODE_IBSS &&
1341 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE | WPA_KEY_MGMT_WPA_NONE))) {
1342 if (debug_print)
1343 wpa_dbg(wpa_s, MSG_DEBUG,
1344 " skip - IBSS RSN not supported in the build");
1345 return false;
1346 }
1347 #endif /* !CONFIG_IBSS_RSN */
1348
1349 #ifdef CONFIG_P2P
1350 if (ssid->p2p_group &&
1351 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1352 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1353 if (debug_print)
1354 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
1355 return false;
1356 }
1357
1358 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1359 struct wpabuf *p2p_ie;
1360 u8 dev_addr[ETH_ALEN];
1361
1362 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1363 if (!ie) {
1364 if (debug_print)
1365 wpa_dbg(wpa_s, MSG_DEBUG,
1366 " skip - no P2P element");
1367 return false;
1368 }
1369 p2p_ie = wpa_bss_get_vendor_ie_multi(bss, P2P_IE_VENDOR_TYPE);
1370 if (!p2p_ie) {
1371 if (debug_print)
1372 wpa_dbg(wpa_s, MSG_DEBUG,
1373 " skip - could not fetch P2P element");
1374 return false;
1375 }
1376
1377 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0 ||
1378 os_memcmp(dev_addr, ssid->go_p2p_dev_addr, ETH_ALEN) != 0) {
1379 if (debug_print)
1380 wpa_dbg(wpa_s, MSG_DEBUG,
1381 " skip - no matching GO P2P Device Address in P2P element");
1382 wpabuf_free(p2p_ie);
1383 return false;
1384 }
1385 wpabuf_free(p2p_ie);
1386 }
1387
1388 /*
1389 * TODO: skip the AP if its P2P IE has Group Formation bit set in the
1390 * P2P Group Capability Bitmap and we are not in Group Formation with
1391 * that device.
1392 */
1393 #endif /* CONFIG_P2P */
1394
1395 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time)) {
1396 struct os_reltime diff;
1397
1398 os_reltime_sub(&wpa_s->scan_min_time, &bss->last_update, &diff);
1399 if (debug_print)
1400 wpa_dbg(wpa_s, MSG_DEBUG,
1401 " skip - scan result not recent enough (%u.%06u seconds too old)",
1402 (unsigned int) diff.sec,
1403 (unsigned int) diff.usec);
1404 return false;
1405 }
1406 #ifdef CONFIG_MBO
1407 #ifdef CONFIG_TESTING_OPTIONS
1408 if (wpa_s->ignore_assoc_disallow)
1409 goto skip_assoc_disallow;
1410 #endif /* CONFIG_TESTING_OPTIONS */
1411 assoc_disallow = wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_ASSOC_DISALLOW);
1412 if (assoc_disallow && assoc_disallow[1] >= 1) {
1413 if (debug_print)
1414 wpa_dbg(wpa_s, MSG_DEBUG,
1415 " skip - MBO association disallowed (reason %u)",
1416 assoc_disallow[2]);
1417 return false;
1418 }
1419
1420 if (wpa_is_bss_tmp_disallowed(wpa_s, bss)) {
1421 if (debug_print)
1422 wpa_dbg(wpa_s, MSG_DEBUG,
1423 " skip - AP temporarily disallowed");
1424 return false;
1425 }
1426 #ifdef CONFIG_TESTING_OPTIONS
1427 skip_assoc_disallow:
1428 #endif /* CONFIG_TESTING_OPTIONS */
1429 #endif /* CONFIG_MBO */
1430
1431 #ifdef CONFIG_DPP
1432 if ((ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
1433 !wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, ssid) &&
1434 (!ssid->dpp_connector || !ssid->dpp_netaccesskey ||
1435 !ssid->dpp_csign)) {
1436 if (debug_print)
1437 wpa_dbg(wpa_s, MSG_DEBUG,
1438 " skip - no PMKSA entry for DPP");
1439 return false;
1440 }
1441 #endif /* CONFIG_DPP */
1442
1443 #ifdef CONFIG_SAE_PK
1444 if (ssid->sae_pk == SAE_PK_MODE_AUTOMATIC &&
1445 wpa_key_mgmt_sae(ssid->key_mgmt) &&
1446 ((ssid->sae_password &&
1447 sae_pk_valid_password(ssid->sae_password)) ||
1448 (!ssid->sae_password && ssid->passphrase &&
1449 sae_pk_valid_password(ssid->passphrase))) &&
1450 !(rsnxe_capa & BIT(WLAN_RSNX_CAPAB_SAE_PK)) &&
1451 sae_pk_acceptable_bss_with_pk(wpa_s, bss, ssid, match_ssid,
1452 match_ssid_len)) {
1453 if (debug_print)
1454 wpa_dbg(wpa_s, MSG_DEBUG,
1455 " skip - another acceptable BSS with SAE-PK in the same ESS");
1456 return false;
1457 }
1458 #endif /* CONFIG_SAE_PK */
1459
1460 if (bss->ssid_len == 0) {
1461 if (debug_print)
1462 wpa_dbg(wpa_s, MSG_DEBUG,
1463 " skip - no SSID known for the BSS");
1464 return false;
1465 }
1466
1467 /* Matching configuration found */
1468 return true;
1469 }
1470
1471
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)1472 struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
1473 int i, struct wpa_bss *bss,
1474 struct wpa_ssid *group,
1475 int only_first_ssid, int debug_print)
1476 {
1477 u8 wpa_ie_len, rsn_ie_len;
1478 const u8 *ie;
1479 struct wpa_ssid *ssid;
1480 int osen;
1481 const u8 *match_ssid;
1482 size_t match_ssid_len;
1483 int bssid_ignore_count;
1484
1485 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
1486 wpa_ie_len = ie ? ie[1] : 0;
1487
1488 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1489 rsn_ie_len = ie ? ie[1] : 0;
1490
1491 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
1492 osen = ie != NULL;
1493
1494 if (debug_print) {
1495 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR
1496 " ssid='%s' wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
1497 i, MAC2STR(bss->bssid),
1498 wpa_ssid_txt(bss->ssid, bss->ssid_len),
1499 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
1500 bss->freq,
1501 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ?
1502 " wps" : "",
1503 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
1504 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE))
1505 ? " p2p" : "",
1506 osen ? " osen=1" : "");
1507 }
1508
1509 bssid_ignore_count = wpa_bssid_ignore_is_listed(wpa_s, bss->bssid);
1510 if (bssid_ignore_count) {
1511 int limit = 1;
1512 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
1513 /*
1514 * When only a single network is enabled, we can
1515 * trigger BSSID ignoring on the first failure. This
1516 * should not be done with multiple enabled networks to
1517 * avoid getting forced to move into a worse ESS on
1518 * single error if there are no other BSSes of the
1519 * current ESS.
1520 */
1521 limit = 0;
1522 }
1523 if (bssid_ignore_count > limit) {
1524 if (debug_print) {
1525 wpa_dbg(wpa_s, MSG_DEBUG,
1526 " skip - BSSID ignored (count=%d limit=%d)",
1527 bssid_ignore_count, limit);
1528 }
1529 return NULL;
1530 }
1531 }
1532
1533 match_ssid = bss->ssid;
1534 match_ssid_len = bss->ssid_len;
1535 owe_trans_ssid(wpa_s, bss, &match_ssid, &match_ssid_len);
1536
1537 if (match_ssid_len == 0) {
1538 if (debug_print)
1539 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
1540 return NULL;
1541 }
1542
1543 if (disallowed_bssid(wpa_s, bss->bssid)) {
1544 if (debug_print)
1545 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
1546 return NULL;
1547 }
1548
1549 if (disallowed_ssid(wpa_s, match_ssid, match_ssid_len)) {
1550 if (debug_print)
1551 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
1552 return NULL;
1553 }
1554
1555 if (disabled_freq(wpa_s, bss->freq)) {
1556 if (debug_print)
1557 wpa_dbg(wpa_s, MSG_DEBUG, " skip - channel disabled");
1558 return NULL;
1559 }
1560
1561 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
1562 if (wpa_scan_res_ok(wpa_s, ssid, match_ssid, match_ssid_len,
1563 bss, bssid_ignore_count, debug_print))
1564 return ssid;
1565 }
1566
1567 /* No matching configuration found */
1568 return NULL;
1569 }
1570
1571
1572 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)1573 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1574 struct wpa_ssid *group,
1575 struct wpa_ssid **selected_ssid,
1576 int only_first_ssid)
1577 {
1578 unsigned int i;
1579
1580 if (wpa_s->current_ssid) {
1581 struct wpa_ssid *ssid;
1582
1583 wpa_dbg(wpa_s, MSG_DEBUG,
1584 "Scan results matching the currently selected network");
1585 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1586 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1587
1588 ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1589 only_first_ssid, 0);
1590 if (ssid != wpa_s->current_ssid)
1591 continue;
1592 wpa_dbg(wpa_s, MSG_DEBUG, "%u: " MACSTR
1593 " freq=%d level=%d snr=%d est_throughput=%u",
1594 i, MAC2STR(bss->bssid), bss->freq, bss->level,
1595 bss->snr, bss->est_throughput);
1596 }
1597 }
1598
1599 if (only_first_ssid)
1600 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1601 group->id);
1602 else
1603 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1604 group->priority);
1605
1606 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1607 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1608
1609 wpa_s->owe_transition_select = 1;
1610 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1611 only_first_ssid, 1);
1612 wpa_s->owe_transition_select = 0;
1613 if (!*selected_ssid)
1614 continue;
1615 wpa_dbg(wpa_s, MSG_DEBUG, " selected %sBSS " MACSTR
1616 " ssid='%s'",
1617 bss == wpa_s->current_bss ? "current ": "",
1618 MAC2STR(bss->bssid),
1619 wpa_ssid_txt(bss->ssid, bss->ssid_len));
1620 return bss;
1621 }
1622
1623 return NULL;
1624 }
1625
1626
wpa_supplicant_pick_network(struct wpa_supplicant * wpa_s,struct wpa_ssid ** selected_ssid)1627 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1628 struct wpa_ssid **selected_ssid)
1629 {
1630 struct wpa_bss *selected = NULL;
1631 size_t prio;
1632 struct wpa_ssid *next_ssid = NULL;
1633 struct wpa_ssid *ssid;
1634
1635 if (wpa_s->last_scan_res == NULL ||
1636 wpa_s->last_scan_res_used == 0)
1637 return NULL; /* no scan results from last update */
1638
1639 if (wpa_s->next_ssid) {
1640 /* check that next_ssid is still valid */
1641 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1642 if (ssid == wpa_s->next_ssid)
1643 break;
1644 }
1645 next_ssid = ssid;
1646 wpa_s->next_ssid = NULL;
1647 }
1648
1649 while (selected == NULL) {
1650 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1651 if (next_ssid && next_ssid->priority ==
1652 wpa_s->conf->pssid[prio]->priority) {
1653 selected = wpa_supplicant_select_bss(
1654 wpa_s, next_ssid, selected_ssid, 1);
1655 if (selected)
1656 break;
1657 }
1658 selected = wpa_supplicant_select_bss(
1659 wpa_s, wpa_s->conf->pssid[prio],
1660 selected_ssid, 0);
1661 if (selected)
1662 break;
1663 }
1664
1665 if (selected == NULL && wpa_s->bssid_ignore &&
1666 !wpa_s->countermeasures) {
1667 wpa_dbg(wpa_s, MSG_DEBUG,
1668 "No APs found - clear BSSID ignore list and try again");
1669 wpa_bssid_ignore_clear(wpa_s);
1670 wpa_s->bssid_ignore_cleared = true;
1671 } else if (selected == NULL)
1672 break;
1673 }
1674
1675 ssid = *selected_ssid;
1676 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1677 !ssid->passphrase && !ssid->ext_psk) {
1678 const char *field_name, *txt = NULL;
1679
1680 wpa_dbg(wpa_s, MSG_DEBUG,
1681 "PSK/passphrase not yet available for the selected network");
1682
1683 wpas_notify_network_request(wpa_s, ssid,
1684 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1685
1686 field_name = wpa_supplicant_ctrl_req_to_string(
1687 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1688 if (field_name == NULL)
1689 return NULL;
1690
1691 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1692
1693 selected = NULL;
1694 }
1695
1696 return selected;
1697 }
1698
1699
wpa_supplicant_req_new_scan(struct wpa_supplicant * wpa_s,int timeout_sec,int timeout_usec)1700 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1701 int timeout_sec, int timeout_usec)
1702 {
1703 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1704 /*
1705 * No networks are enabled; short-circuit request so
1706 * we don't wait timeout seconds before transitioning
1707 * to INACTIVE state.
1708 */
1709 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1710 "since there are no enabled networks");
1711 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1712 return;
1713 }
1714
1715 wpa_s->scan_for_connection = 1;
1716 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1717 }
1718
1719
wpa_supplicant_connect(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)1720 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1721 struct wpa_bss *selected,
1722 struct wpa_ssid *ssid)
1723 {
1724 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1725 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1726 "PBC session overlap");
1727 wpas_notify_wps_event_pbc_overlap(wpa_s);
1728 #ifdef CONFIG_P2P
1729 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1730 wpa_s->p2p_in_provisioning) {
1731 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1732 wpa_s, NULL);
1733 return -1;
1734 }
1735 #endif /* CONFIG_P2P */
1736
1737 #ifdef CONFIG_WPS
1738 wpas_wps_pbc_overlap(wpa_s);
1739 wpas_wps_cancel(wpa_s);
1740 #endif /* CONFIG_WPS */
1741 return -1;
1742 }
1743
1744 wpa_msg(wpa_s, MSG_DEBUG,
1745 "Considering connect request: reassociate: %d selected: "
1746 MACSTR " bssid: " MACSTR " pending: " MACSTR
1747 " wpa_state: %s ssid=%p current_ssid=%p",
1748 wpa_s->reassociate, MAC2STR(selected->bssid),
1749 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1750 wpa_supplicant_state_txt(wpa_s->wpa_state),
1751 ssid, wpa_s->current_ssid);
1752
1753 /*
1754 * Do not trigger new association unless the BSSID has changed or if
1755 * reassociation is requested. If we are in process of associating with
1756 * the selected BSSID, do not trigger new attempt.
1757 */
1758 if (wpa_s->reassociate ||
1759 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1760 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1761 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1762 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1763 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1764 0) ||
1765 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1766 ssid != wpa_s->current_ssid)))) {
1767 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1768 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1769 return 0;
1770 }
1771 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1772 MAC2STR(selected->bssid));
1773 wpa_supplicant_associate(wpa_s, selected, ssid);
1774 } else {
1775 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1776 "connect with the selected AP");
1777 }
1778
1779 return 0;
1780 }
1781
1782
1783 static struct wpa_ssid *
wpa_supplicant_pick_new_network(struct wpa_supplicant * wpa_s)1784 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1785 {
1786 size_t prio;
1787 struct wpa_ssid *ssid;
1788
1789 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1790 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1791 {
1792 if (wpas_network_disabled(wpa_s, ssid))
1793 continue;
1794 #ifndef CONFIG_IBSS_RSN
1795 if (ssid->mode == WPAS_MODE_IBSS &&
1796 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE |
1797 WPA_KEY_MGMT_WPA_NONE))) {
1798 wpa_msg(wpa_s, MSG_INFO,
1799 "IBSS RSN not supported in the build - cannot use the profile for SSID '%s'",
1800 wpa_ssid_txt(ssid->ssid,
1801 ssid->ssid_len));
1802 continue;
1803 }
1804 #endif /* !CONFIG_IBSS_RSN */
1805 if (ssid->mode == WPAS_MODE_IBSS ||
1806 ssid->mode == WPAS_MODE_AP ||
1807 ssid->mode == WPAS_MODE_MESH)
1808 return ssid;
1809 }
1810 }
1811 return NULL;
1812 }
1813
1814
1815 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1816 * on BSS added and BSS changed events */
wpa_supplicant_rsn_preauth_scan_results(struct wpa_supplicant * wpa_s)1817 static void wpa_supplicant_rsn_preauth_scan_results(
1818 struct wpa_supplicant *wpa_s)
1819 {
1820 struct wpa_bss *bss;
1821
1822 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1823 return;
1824
1825 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1826 const u8 *ssid, *rsn;
1827
1828 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1829 if (ssid == NULL)
1830 continue;
1831
1832 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1833 if (rsn == NULL)
1834 continue;
1835
1836 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1837 }
1838
1839 }
1840
1841
1842 #ifndef CONFIG_NO_ROAMING
1843
wpas_get_snr_signal_info(u32 frequency,int avg_signal,int noise)1844 static int wpas_get_snr_signal_info(u32 frequency, int avg_signal, int noise)
1845 {
1846 if (noise == WPA_INVALID_NOISE)
1847 noise = IS_5GHZ(frequency) ? DEFAULT_NOISE_FLOOR_5GHZ :
1848 DEFAULT_NOISE_FLOOR_2GHZ;
1849 return avg_signal - noise;
1850 }
1851
1852
1853 static unsigned int
wpas_get_est_throughput_from_bss_snr(const struct wpa_supplicant * wpa_s,const struct wpa_bss * bss,int snr)1854 wpas_get_est_throughput_from_bss_snr(const struct wpa_supplicant *wpa_s,
1855 const struct wpa_bss *bss, int snr)
1856 {
1857 int rate = wpa_bss_get_max_rate(bss);
1858 const u8 *ies = wpa_bss_ie_ptr(bss);
1859 size_t ie_len = bss->ie_len ? bss->ie_len : bss->beacon_ie_len;
1860
1861 return wpas_get_est_tpt(wpa_s, ies, ie_len, rate, snr, bss->freq);
1862 }
1863
1864
wpa_supplicant_need_to_roam_within_ess(struct wpa_supplicant * wpa_s,struct wpa_bss * current_bss,struct wpa_bss * selected)1865 int wpa_supplicant_need_to_roam_within_ess(struct wpa_supplicant *wpa_s,
1866 struct wpa_bss *current_bss,
1867 struct wpa_bss *selected)
1868 {
1869 int min_diff, diff;
1870 int to_5ghz;
1871 int cur_level;
1872 unsigned int cur_est, sel_est;
1873 struct wpa_signal_info si;
1874 int cur_snr = 0;
1875 int ret = 0;
1876
1877 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1878 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1879 " freq=%d level=%d snr=%d est_throughput=%u",
1880 MAC2STR(current_bss->bssid),
1881 current_bss->freq, current_bss->level,
1882 current_bss->snr, current_bss->est_throughput);
1883 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1884 " freq=%d level=%d snr=%d est_throughput=%u",
1885 MAC2STR(selected->bssid), selected->freq, selected->level,
1886 selected->snr, selected->est_throughput);
1887
1888 if (wpa_s->current_ssid->bssid_set &&
1889 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1890 0) {
1891 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1892 "has preferred BSSID");
1893 return 1;
1894 }
1895
1896 cur_level = current_bss->level;
1897 cur_est = current_bss->est_throughput;
1898 sel_est = selected->est_throughput;
1899
1900 /*
1901 * Try to poll the signal from the driver since this will allow to get
1902 * more accurate values. In some cases, there can be big differences
1903 * between the RSSI of the Probe Response frames of the AP we are
1904 * associated with and the Beacon frames we hear from the same AP after
1905 * association. This can happen, e.g., when there are two antennas that
1906 * hear the AP very differently. If the driver chooses to hear the
1907 * Probe Response frames during the scan on the "bad" antenna because
1908 * it wants to save power, but knows to choose the other antenna after
1909 * association, we will hear our AP with a low RSSI as part of the
1910 * scan even when we can hear it decently on the other antenna. To cope
1911 * with this, ask the driver to teach us how it hears the AP. Also, the
1912 * scan results may be a bit old, since we can very quickly get fresh
1913 * information about our currently associated AP.
1914 */
1915 if (wpa_drv_signal_poll(wpa_s, &si) == 0 &&
1916 (si.avg_beacon_signal || si.avg_signal)) {
1917 cur_level = si.avg_beacon_signal ? si.avg_beacon_signal :
1918 si.avg_signal;
1919 cur_snr = wpas_get_snr_signal_info(si.frequency, cur_level,
1920 si.current_noise);
1921
1922 cur_est = wpas_get_est_throughput_from_bss_snr(wpa_s,
1923 current_bss,
1924 cur_snr);
1925 wpa_dbg(wpa_s, MSG_DEBUG,
1926 "Using signal poll values for the current BSS: level=%d snr=%d est_throughput=%u",
1927 cur_level, cur_snr, cur_est);
1928 }
1929
1930 if (sel_est > cur_est + 5000) {
1931 wpa_dbg(wpa_s, MSG_DEBUG,
1932 "Allow reassociation - selected BSS has better estimated throughput");
1933 return 1;
1934 }
1935
1936 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
1937
1938 if (cur_level < 0 && cur_level > selected->level + to_5ghz * 2 &&
1939 sel_est < cur_est * 1.2) {
1940 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1941 "signal level");
1942 return 0;
1943 }
1944
1945 if (cur_est > sel_est + 5000) {
1946 wpa_dbg(wpa_s, MSG_DEBUG,
1947 "Skip roam - Current BSS has better estimated throughput");
1948 return 0;
1949 }
1950
1951 if (cur_snr > GREAT_SNR) {
1952 wpa_dbg(wpa_s, MSG_DEBUG,
1953 "Skip roam - Current BSS has good SNR (%u > %u)",
1954 cur_snr, GREAT_SNR);
1955 return 0;
1956 }
1957
1958 if (cur_level < -85) /* ..-86 dBm */
1959 min_diff = 1;
1960 else if (cur_level < -80) /* -85..-81 dBm */
1961 min_diff = 2;
1962 else if (cur_level < -75) /* -80..-76 dBm */
1963 min_diff = 3;
1964 else if (cur_level < -70) /* -75..-71 dBm */
1965 min_diff = 4;
1966 else if (cur_level < 0) /* -70..-1 dBm */
1967 min_diff = 5;
1968 else /* unspecified units (not in dBm) */
1969 min_diff = 2;
1970
1971 if (cur_est > sel_est * 1.5)
1972 min_diff += 10;
1973 else if (cur_est > sel_est * 1.2)
1974 min_diff += 5;
1975 else if (cur_est > sel_est * 1.1)
1976 min_diff += 2;
1977 else if (cur_est > sel_est)
1978 min_diff++;
1979 else if (sel_est > cur_est * 1.5)
1980 min_diff -= 10;
1981 else if (sel_est > cur_est * 1.2)
1982 min_diff -= 5;
1983 else if (sel_est > cur_est * 1.1)
1984 min_diff -= 2;
1985 else if (sel_est > cur_est)
1986 min_diff--;
1987
1988 if (to_5ghz)
1989 min_diff -= 2;
1990 diff = selected->level - cur_level;
1991 if (diff < min_diff) {
1992 wpa_dbg(wpa_s, MSG_DEBUG,
1993 "Skip roam - too small difference in signal level (%d < %d)",
1994 diff, min_diff);
1995 ret = 0;
1996 } else {
1997 wpa_dbg(wpa_s, MSG_DEBUG,
1998 "Allow reassociation due to difference in signal level (%d >= %d)",
1999 diff, min_diff);
2000 ret = 1;
2001 }
2002 wpa_msg_ctrl(wpa_s, MSG_INFO, "%scur_bssid=" MACSTR
2003 " cur_freq=%d cur_level=%d cur_est=%d sel_bssid=" MACSTR
2004 " sel_freq=%d sel_level=%d sel_est=%d",
2005 ret ? WPA_EVENT_DO_ROAM : WPA_EVENT_SKIP_ROAM,
2006 MAC2STR(current_bss->bssid),
2007 current_bss->freq, cur_level, cur_est,
2008 MAC2STR(selected->bssid),
2009 selected->freq, selected->level, sel_est);
2010 return ret;
2011 }
2012
2013 #endif /* CONFIG_NO_ROAMING */
2014
2015
wpa_supplicant_need_to_roam(struct wpa_supplicant * wpa_s,struct wpa_bss * selected,struct wpa_ssid * ssid)2016 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
2017 struct wpa_bss *selected,
2018 struct wpa_ssid *ssid)
2019 {
2020 struct wpa_bss *current_bss = NULL;
2021
2022 if (wpa_s->reassociate)
2023 return 1; /* explicit request to reassociate */
2024 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2025 return 1; /* we are not associated; continue */
2026 if (wpa_s->current_ssid == NULL)
2027 return 1; /* unknown current SSID */
2028 if (wpa_s->current_ssid != ssid)
2029 return 1; /* different network block */
2030
2031 if (wpas_driver_bss_selection(wpa_s))
2032 return 0; /* Driver-based roaming */
2033
2034 if (wpa_s->current_ssid->ssid)
2035 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
2036 wpa_s->current_ssid->ssid,
2037 wpa_s->current_ssid->ssid_len);
2038 if (!current_bss)
2039 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
2040
2041 if (!current_bss)
2042 return 1; /* current BSS not seen in scan results */
2043
2044 if (current_bss == selected)
2045 return 0;
2046
2047 if (selected->last_update_idx > current_bss->last_update_idx)
2048 return 1; /* current BSS not seen in the last scan */
2049
2050 #ifndef CONFIG_NO_ROAMING
2051 return wpa_supplicant_need_to_roam_within_ess(wpa_s, current_bss,
2052 selected);
2053 #else /* CONFIG_NO_ROAMING */
2054 return 0;
2055 #endif /* CONFIG_NO_ROAMING */
2056 }
2057
2058
2059 /*
2060 * Return a negative value if no scan results could be fetched or if scan
2061 * results should not be shared with other virtual interfaces.
2062 * Return 0 if scan results were fetched and may be shared with other
2063 * interfaces.
2064 * Return 1 if scan results may be shared with other virtual interfaces but may
2065 * not trigger any operations.
2066 * Return 2 if the interface was removed and cannot be used.
2067 */
_wpa_supplicant_event_scan_results(struct wpa_supplicant * wpa_s,union wpa_event_data * data,int own_request,int update_only)2068 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
2069 union wpa_event_data *data,
2070 int own_request, int update_only)
2071 {
2072 struct wpa_scan_results *scan_res = NULL;
2073 int ret = 0;
2074 int ap = 0;
2075 #ifndef CONFIG_NO_RANDOM_POOL
2076 size_t i, num;
2077 #endif /* CONFIG_NO_RANDOM_POOL */
2078
2079 #ifdef CONFIG_AP
2080 if (wpa_s->ap_iface)
2081 ap = 1;
2082 #endif /* CONFIG_AP */
2083
2084 wpa_supplicant_notify_scanning(wpa_s, 0);
2085
2086 scan_res = wpa_supplicant_get_scan_results(wpa_s,
2087 data ? &data->scan_info :
2088 NULL, 1);
2089 if (scan_res == NULL) {
2090 if (wpa_s->conf->ap_scan == 2 || ap ||
2091 wpa_s->scan_res_handler == scan_only_handler)
2092 return -1;
2093 if (!own_request)
2094 return -1;
2095 if (data && data->scan_info.external_scan)
2096 return -1;
2097 if (wpa_s->scan_res_fail_handler) {
2098 void (*handler)(struct wpa_supplicant *wpa_s);
2099
2100 handler = wpa_s->scan_res_fail_handler;
2101 wpa_s->scan_res_fail_handler = NULL;
2102 handler(wpa_s);
2103 } else {
2104 wpa_dbg(wpa_s, MSG_DEBUG,
2105 "Failed to get scan results - try scanning again");
2106 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
2107 }
2108
2109 ret = -1;
2110 goto scan_work_done;
2111 }
2112
2113 #ifndef CONFIG_NO_RANDOM_POOL
2114 num = scan_res->num;
2115 if (num > 10)
2116 num = 10;
2117 for (i = 0; i < num; i++) {
2118 u8 buf[5];
2119 struct wpa_scan_res *res = scan_res->res[i];
2120 buf[0] = res->bssid[5];
2121 buf[1] = res->qual & 0xff;
2122 buf[2] = res->noise & 0xff;
2123 buf[3] = res->level & 0xff;
2124 buf[4] = res->tsf & 0xff;
2125 random_add_randomness(buf, sizeof(buf));
2126 }
2127 #endif /* CONFIG_NO_RANDOM_POOL */
2128
2129 if (update_only) {
2130 ret = 1;
2131 goto scan_work_done;
2132 }
2133
2134 if (own_request && wpa_s->scan_res_handler &&
2135 !(data && data->scan_info.external_scan)) {
2136 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
2137 struct wpa_scan_results *scan_res);
2138
2139 scan_res_handler = wpa_s->scan_res_handler;
2140 wpa_s->scan_res_handler = NULL;
2141 scan_res_handler(wpa_s, scan_res);
2142 ret = 1;
2143 goto scan_work_done;
2144 }
2145
2146 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
2147 wpa_s->own_scan_running,
2148 data ? data->scan_info.external_scan : 0);
2149 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
2150 wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
2151 own_request && !(data && data->scan_info.external_scan)) {
2152 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
2153 wpa_s->manual_scan_id);
2154 wpa_s->manual_scan_use_id = 0;
2155 } else {
2156 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
2157 }
2158 wpas_notify_scan_results(wpa_s);
2159
2160 wpas_notify_scan_done(wpa_s, 1);
2161
2162 if (ap) {
2163 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
2164 #ifdef CONFIG_AP
2165 if (wpa_s->ap_iface->scan_cb)
2166 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
2167 #endif /* CONFIG_AP */
2168 goto scan_work_done;
2169 }
2170
2171 if (data && data->scan_info.external_scan) {
2172 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
2173 wpa_scan_results_free(scan_res);
2174 return 0;
2175 }
2176
2177 if (wnm_scan_process(wpa_s, 1) > 0)
2178 goto scan_work_done;
2179
2180 if (sme_proc_obss_scan(wpa_s, scan_res) > 0)
2181 goto scan_work_done;
2182
2183 if (own_request && data &&
2184 wpas_beacon_rep_scan_process(wpa_s, scan_res, &data->scan_info) > 0)
2185 goto scan_work_done;
2186
2187 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
2188 goto scan_work_done;
2189
2190 if (autoscan_notify_scan(wpa_s, scan_res))
2191 goto scan_work_done;
2192
2193 if (wpa_s->disconnected) {
2194 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2195 goto scan_work_done;
2196 }
2197
2198 if (!wpas_driver_bss_selection(wpa_s) &&
2199 bgscan_notify_scan(wpa_s, scan_res) == 1)
2200 goto scan_work_done;
2201
2202 wpas_wps_update_ap_info(wpa_s, scan_res);
2203
2204 if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
2205 wpa_s->wpa_state < WPA_COMPLETED)
2206 goto scan_work_done;
2207
2208 wpa_scan_results_free(scan_res);
2209
2210 if (own_request && wpa_s->scan_work) {
2211 struct wpa_radio_work *work = wpa_s->scan_work;
2212 wpa_s->scan_work = NULL;
2213 radio_work_done(work);
2214 }
2215
2216 os_free(wpa_s->last_scan_freqs);
2217 wpa_s->last_scan_freqs = NULL;
2218 wpa_s->num_last_scan_freqs = 0;
2219 if (own_request && data &&
2220 data->scan_info.freqs && data->scan_info.num_freqs) {
2221 wpa_s->last_scan_freqs = os_malloc(sizeof(int) *
2222 data->scan_info.num_freqs);
2223 if (wpa_s->last_scan_freqs) {
2224 os_memcpy(wpa_s->last_scan_freqs,
2225 data->scan_info.freqs,
2226 sizeof(int) * data->scan_info.num_freqs);
2227 wpa_s->num_last_scan_freqs = data->scan_info.num_freqs;
2228 }
2229 }
2230
2231 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
2232
2233 scan_work_done:
2234 wpa_scan_results_free(scan_res);
2235 if (own_request && wpa_s->scan_work) {
2236 struct wpa_radio_work *work = wpa_s->scan_work;
2237 wpa_s->scan_work = NULL;
2238 radio_work_done(work);
2239 }
2240 return ret;
2241 }
2242
2243
wpas_select_network_from_last_scan(struct wpa_supplicant * wpa_s,int new_scan,int own_request)2244 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
2245 int new_scan, int own_request)
2246 {
2247 struct wpa_bss *selected;
2248 struct wpa_ssid *ssid = NULL;
2249 int time_to_reenable = wpas_reenabled_network_time(wpa_s);
2250
2251 if (time_to_reenable > 0) {
2252 wpa_dbg(wpa_s, MSG_DEBUG,
2253 "Postpone network selection by %d seconds since all networks are disabled",
2254 time_to_reenable);
2255 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2256 eloop_register_timeout(time_to_reenable, 0,
2257 wpas_network_reenabled, wpa_s, NULL);
2258 return 0;
2259 }
2260
2261 if (wpa_s->p2p_mgmt)
2262 return 0; /* no normal connection on p2p_mgmt interface */
2263
2264 wpa_s->owe_transition_search = 0;
2265 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
2266
2267 #ifdef CONFIG_MESH
2268 if (wpa_s->ifmsh) {
2269 wpa_msg(wpa_s, MSG_INFO,
2270 "Avoiding join because we already joined a mesh group");
2271 return 0;
2272 }
2273 #endif /* CONFIG_MESH */
2274
2275 if (selected) {
2276 int skip;
2277 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
2278 if (skip) {
2279 if (new_scan)
2280 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2281 return 0;
2282 }
2283
2284 wpa_s->suitable_network++;
2285
2286 if (ssid != wpa_s->current_ssid &&
2287 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2288 wpa_s->own_disconnect_req = 1;
2289 wpa_supplicant_deauthenticate(
2290 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2291 }
2292
2293 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
2294 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
2295 return -1;
2296 }
2297 if (new_scan)
2298 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2299 /*
2300 * Do not allow other virtual radios to trigger operations based
2301 * on these scan results since we do not want them to start
2302 * other associations at the same time.
2303 */
2304 return 1;
2305 } else {
2306 wpa_s->no_suitable_network++;
2307 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
2308 ssid = wpa_supplicant_pick_new_network(wpa_s);
2309 if (ssid) {
2310 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
2311 wpa_supplicant_associate(wpa_s, NULL, ssid);
2312 if (new_scan)
2313 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
2314 } else if (own_request) {
2315 /*
2316 * No SSID found. If SCAN results are as a result of
2317 * own scan request and not due to a scan request on
2318 * another shared interface, try another scan.
2319 */
2320 int timeout_sec = wpa_s->scan_interval;
2321 int timeout_usec = 0;
2322 #ifdef CONFIG_P2P
2323 int res;
2324
2325 res = wpas_p2p_scan_no_go_seen(wpa_s);
2326 if (res == 2)
2327 return 2;
2328 if (res == 1)
2329 return 0;
2330
2331 if (wpa_s->p2p_in_provisioning ||
2332 wpa_s->show_group_started ||
2333 wpa_s->p2p_in_invitation) {
2334 /*
2335 * Use shorter wait during P2P Provisioning
2336 * state and during P2P join-a-group operation
2337 * to speed up group formation.
2338 */
2339 timeout_sec = 0;
2340 timeout_usec = 250000;
2341 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2342 timeout_usec);
2343 return 0;
2344 }
2345 #endif /* CONFIG_P2P */
2346 #ifdef CONFIG_INTERWORKING
2347 if (wpa_s->conf->auto_interworking &&
2348 wpa_s->conf->interworking &&
2349 wpa_s->conf->cred) {
2350 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
2351 "start ANQP fetch since no matching "
2352 "networks found");
2353 wpa_s->network_select = 1;
2354 wpa_s->auto_network_select = 1;
2355 interworking_start_fetch_anqp(wpa_s);
2356 return 1;
2357 }
2358 #endif /* CONFIG_INTERWORKING */
2359 #ifdef CONFIG_WPS
2360 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
2361 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
2362 timeout_sec = 0;
2363 timeout_usec = 500000;
2364 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2365 timeout_usec);
2366 return 0;
2367 }
2368 #endif /* CONFIG_WPS */
2369 #ifdef CONFIG_OWE
2370 if (wpa_s->owe_transition_search) {
2371 wpa_dbg(wpa_s, MSG_DEBUG,
2372 "OWE: Use shorter wait during transition mode search");
2373 timeout_sec = 0;
2374 timeout_usec = 500000;
2375 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2376 timeout_usec);
2377 return 0;
2378 }
2379 #endif /* CONFIG_OWE */
2380 if (wpa_supplicant_req_sched_scan(wpa_s))
2381 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
2382 timeout_usec);
2383
2384 wpa_msg_ctrl(wpa_s, MSG_INFO,
2385 WPA_EVENT_NETWORK_NOT_FOUND);
2386 }
2387 }
2388 return 0;
2389 }
2390
2391
wpa_supplicant_event_scan_results(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2392 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
2393 union wpa_event_data *data)
2394 {
2395 struct wpa_supplicant *ifs;
2396 int res;
2397
2398 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1, 0);
2399 if (res == 2) {
2400 /*
2401 * Interface may have been removed, so must not dereference
2402 * wpa_s after this.
2403 */
2404 return 1;
2405 }
2406
2407 if (res < 0) {
2408 /*
2409 * If no scan results could be fetched, then no need to
2410 * notify those interfaces that did not actually request
2411 * this scan. Similarly, if scan results started a new operation on this
2412 * interface, do not notify other interfaces to avoid concurrent
2413 * operations during a connection attempt.
2414 */
2415 return 0;
2416 }
2417
2418 /*
2419 * Check other interfaces to see if they share the same radio. If
2420 * so, they get updated with this same scan info.
2421 */
2422 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
2423 radio_list) {
2424 if (ifs != wpa_s) {
2425 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
2426 "sibling", ifs->ifname);
2427 res = _wpa_supplicant_event_scan_results(ifs, data, 0,
2428 res > 0);
2429 if (res < 0)
2430 return 0;
2431 }
2432 }
2433
2434 return 0;
2435 }
2436
2437 #endif /* CONFIG_NO_SCAN_PROCESSING */
2438
2439
wpa_supplicant_fast_associate(struct wpa_supplicant * wpa_s)2440 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
2441 {
2442 #ifdef CONFIG_NO_SCAN_PROCESSING
2443 return -1;
2444 #else /* CONFIG_NO_SCAN_PROCESSING */
2445 struct os_reltime now;
2446
2447 wpa_s->ignore_post_flush_scan_res = 0;
2448
2449 if (wpa_s->last_scan_res_used == 0)
2450 return -1;
2451
2452 os_get_reltime(&now);
2453 if (os_reltime_expired(&now, &wpa_s->last_scan,
2454 wpa_s->conf->scan_res_valid_for_connect)) {
2455 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
2456 return -1;
2457 }
2458
2459 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
2460 #endif /* CONFIG_NO_SCAN_PROCESSING */
2461 }
2462
2463 #ifdef CONFIG_WNM
2464
wnm_bss_keep_alive(void * eloop_ctx,void * sock_ctx)2465 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
2466 {
2467 struct wpa_supplicant *wpa_s = eloop_ctx;
2468
2469 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2470 return;
2471
2472 if (!wpa_s->no_keep_alive) {
2473 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
2474 MAC2STR(wpa_s->bssid));
2475 /* TODO: could skip this if normal data traffic has been sent */
2476 /* TODO: Consider using some more appropriate data frame for
2477 * this */
2478 if (wpa_s->l2)
2479 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
2480 (u8 *) "", 0);
2481 }
2482
2483 #ifdef CONFIG_SME
2484 if (wpa_s->sme.bss_max_idle_period) {
2485 unsigned int msec;
2486 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
2487 if (msec > 100)
2488 msec -= 100;
2489 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
2490 wnm_bss_keep_alive, wpa_s, NULL);
2491 }
2492 #endif /* CONFIG_SME */
2493 }
2494
2495
wnm_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)2496 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
2497 const u8 *ies, size_t ies_len)
2498 {
2499 struct ieee802_11_elems elems;
2500
2501 if (ies == NULL)
2502 return;
2503
2504 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
2505 return;
2506
2507 #ifdef CONFIG_SME
2508 if (elems.bss_max_idle_period) {
2509 unsigned int msec;
2510 wpa_s->sme.bss_max_idle_period =
2511 WPA_GET_LE16(elems.bss_max_idle_period);
2512 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
2513 "TU)%s", wpa_s->sme.bss_max_idle_period,
2514 (elems.bss_max_idle_period[2] & 0x01) ?
2515 " (protected keep-live required)" : "");
2516 if (wpa_s->sme.bss_max_idle_period == 0)
2517 wpa_s->sme.bss_max_idle_period = 1;
2518 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
2519 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
2520 /* msec times 1000 */
2521 msec = wpa_s->sme.bss_max_idle_period * 1024;
2522 if (msec > 100)
2523 msec -= 100;
2524 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
2525 wnm_bss_keep_alive, wpa_s,
2526 NULL);
2527 }
2528 }
2529 #endif /* CONFIG_SME */
2530 }
2531
2532 #endif /* CONFIG_WNM */
2533
2534
wnm_bss_keep_alive_deinit(struct wpa_supplicant * wpa_s)2535 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
2536 {
2537 #ifdef CONFIG_WNM
2538 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
2539 #endif /* CONFIG_WNM */
2540 }
2541
2542
2543 #ifdef CONFIG_INTERWORKING
2544
wpas_qos_map_set(struct wpa_supplicant * wpa_s,const u8 * qos_map,size_t len)2545 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
2546 size_t len)
2547 {
2548 int res;
2549
2550 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
2551 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
2552 if (res) {
2553 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
2554 }
2555
2556 return res;
2557 }
2558
2559
interworking_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)2560 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
2561 const u8 *ies, size_t ies_len)
2562 {
2563 struct ieee802_11_elems elems;
2564
2565 if (ies == NULL)
2566 return;
2567
2568 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
2569 return;
2570
2571 if (elems.qos_map_set) {
2572 wpas_qos_map_set(wpa_s, elems.qos_map_set,
2573 elems.qos_map_set_len);
2574 }
2575 }
2576
2577 #endif /* CONFIG_INTERWORKING */
2578
2579
multi_ap_process_assoc_resp(struct wpa_supplicant * wpa_s,const u8 * ies,size_t ies_len)2580 static void multi_ap_process_assoc_resp(struct wpa_supplicant *wpa_s,
2581 const u8 *ies, size_t ies_len)
2582 {
2583 struct ieee802_11_elems elems;
2584 const u8 *map_sub_elem, *pos;
2585 size_t len;
2586
2587 wpa_s->multi_ap_ie = 0;
2588
2589 if (!ies ||
2590 ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed ||
2591 !elems.multi_ap || elems.multi_ap_len < 7)
2592 return;
2593
2594 pos = elems.multi_ap + 4;
2595 len = elems.multi_ap_len - 4;
2596
2597 map_sub_elem = get_ie(pos, len, MULTI_AP_SUB_ELEM_TYPE);
2598 if (!map_sub_elem || map_sub_elem[1] < 1)
2599 return;
2600
2601 wpa_s->multi_ap_backhaul = !!(map_sub_elem[2] & MULTI_AP_BACKHAUL_BSS);
2602 wpa_s->multi_ap_fronthaul = !!(map_sub_elem[2] &
2603 MULTI_AP_FRONTHAUL_BSS);
2604 wpa_s->multi_ap_ie = 1;
2605 }
2606
2607
multi_ap_set_4addr_mode(struct wpa_supplicant * wpa_s)2608 static void multi_ap_set_4addr_mode(struct wpa_supplicant *wpa_s)
2609 {
2610 if (!wpa_s->current_ssid ||
2611 !wpa_s->current_ssid->multi_ap_backhaul_sta)
2612 return;
2613
2614 if (!wpa_s->multi_ap_ie) {
2615 wpa_printf(MSG_INFO,
2616 "AP does not include valid Multi-AP element");
2617 goto fail;
2618 }
2619
2620 if (!wpa_s->multi_ap_backhaul) {
2621 if (wpa_s->multi_ap_fronthaul &&
2622 wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
2623 wpa_printf(MSG_INFO,
2624 "WPS active, accepting fronthaul-only BSS");
2625 /* Don't set 4addr mode in this case, so just return */
2626 return;
2627 }
2628 wpa_printf(MSG_INFO, "AP doesn't support backhaul BSS");
2629 goto fail;
2630 }
2631
2632 if (wpa_drv_set_4addr_mode(wpa_s, 1) < 0) {
2633 wpa_printf(MSG_ERROR, "Failed to set 4addr mode");
2634 goto fail;
2635 }
2636 wpa_s->enabled_4addr_mode = 1;
2637 return;
2638
2639 fail:
2640 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2641 }
2642
2643
2644 #ifdef CONFIG_FST
wpas_fst_update_mbie(struct wpa_supplicant * wpa_s,const u8 * ie,size_t ie_len)2645 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
2646 const u8 *ie, size_t ie_len)
2647 {
2648 struct mb_ies_info mb_ies;
2649
2650 if (!ie || !ie_len || !wpa_s->fst)
2651 return -ENOENT;
2652
2653 os_memset(&mb_ies, 0, sizeof(mb_ies));
2654
2655 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
2656 size_t len;
2657
2658 len = 2 + ie[1];
2659 if (len > ie_len) {
2660 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
2661 ie, ie_len);
2662 break;
2663 }
2664
2665 if (ie[0] == WLAN_EID_MULTI_BAND) {
2666 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
2667 (unsigned int) len);
2668 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
2669 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
2670 mb_ies.nof_ies++;
2671 }
2672
2673 ie_len -= len;
2674 ie += len;
2675 }
2676
2677 if (mb_ies.nof_ies > 0) {
2678 wpabuf_free(wpa_s->received_mb_ies);
2679 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
2680 return 0;
2681 }
2682
2683 return -ENOENT;
2684 }
2685 #endif /* CONFIG_FST */
2686
2687
wpa_supplicant_use_own_rsne_params(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2688 static int wpa_supplicant_use_own_rsne_params(struct wpa_supplicant *wpa_s,
2689 union wpa_event_data *data)
2690 {
2691 int sel;
2692 const u8 *p;
2693 int l, len;
2694 bool found = false;
2695 struct wpa_ie_data ie;
2696 struct wpa_ssid *ssid = wpa_s->current_ssid;
2697 struct wpa_bss *bss = wpa_s->current_bss;
2698 int pmf;
2699
2700 if (!ssid)
2701 return 0;
2702
2703 p = data->assoc_info.req_ies;
2704 l = data->assoc_info.req_ies_len;
2705
2706 while (p && l >= 2) {
2707 len = p[1] + 2;
2708 if (len > l) {
2709 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2710 p, l);
2711 break;
2712 }
2713 if (((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2714 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
2715 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
2716 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
2717 (p[0] == WLAN_EID_RSN && p[1] >= 2))) {
2718 found = true;
2719 break;
2720 }
2721 l -= len;
2722 p += len;
2723 }
2724
2725 if (!found || wpa_parse_wpa_ie(p, len, &ie) < 0)
2726 return 0;
2727
2728 wpa_hexdump(MSG_DEBUG,
2729 "WPA: Update cipher suite selection based on IEs in driver-generated WPA/RSNE in AssocReq",
2730 p, l);
2731
2732 /* Update proto from (Re)Association Request frame info */
2733 wpa_s->wpa_proto = ie.proto;
2734 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, wpa_s->wpa_proto);
2735 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_RSN_ENABLED,
2736 !!(wpa_s->wpa_proto &
2737 (WPA_PROTO_RSN | WPA_PROTO_OSEN)));
2738
2739 /* Update AKMP suite from (Re)Association Request frame info */
2740 sel = ie.key_mgmt;
2741 if (ssid->key_mgmt)
2742 sel &= ssid->key_mgmt;
2743
2744 wpa_dbg(wpa_s, MSG_DEBUG,
2745 "WPA: AP key_mgmt 0x%x network key_mgmt 0x%x; available key_mgmt 0x%x",
2746 ie.key_mgmt, ssid->key_mgmt, sel);
2747 if (ie.key_mgmt && !sel) {
2748 wpa_supplicant_deauthenticate(
2749 wpa_s, WLAN_REASON_AKMP_NOT_VALID);
2750 return -1;
2751 }
2752
2753 wpa_s->key_mgmt = ie.key_mgmt;
2754 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_KEY_MGMT, wpa_s->key_mgmt);
2755 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using KEY_MGMT %s and proto %d",
2756 wpa_key_mgmt_txt(wpa_s->key_mgmt, wpa_s->wpa_proto),
2757 wpa_s->wpa_proto);
2758
2759 /* Update pairwise cipher from (Re)Association Request frame info */
2760 sel = ie.pairwise_cipher;
2761 if (ssid->pairwise_cipher)
2762 sel &= ssid->pairwise_cipher;
2763
2764 wpa_dbg(wpa_s, MSG_DEBUG,
2765 "WPA: AP pairwise cipher 0x%x network pairwise cipher 0x%x; available pairwise cipher 0x%x",
2766 ie.pairwise_cipher, ssid->pairwise_cipher, sel);
2767 if (ie.pairwise_cipher && !sel) {
2768 wpa_supplicant_deauthenticate(
2769 wpa_s, WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID);
2770 return -1;
2771 }
2772
2773 wpa_s->pairwise_cipher = ie.pairwise_cipher;
2774 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PAIRWISE,
2775 wpa_s->pairwise_cipher);
2776 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using PTK %s",
2777 wpa_cipher_txt(wpa_s->pairwise_cipher));
2778
2779 /* Update other parameters based on AP's WPA IE/RSNE, if available */
2780 if (!bss) {
2781 wpa_dbg(wpa_s, MSG_DEBUG,
2782 "WPA: current_bss == NULL - skip AP IE check");
2783 return 0;
2784 }
2785
2786 /* Update GTK and IGTK from AP's RSNE */
2787 found = false;
2788
2789 if (wpa_s->wpa_proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)) {
2790 const u8 *bss_rsn;
2791
2792 bss_rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
2793 if (bss_rsn) {
2794 p = bss_rsn;
2795 len = 2 + bss_rsn[1];
2796 found = true;
2797 }
2798 } else if (wpa_s->wpa_proto & WPA_PROTO_WPA) {
2799 const u8 *bss_wpa;
2800
2801 bss_wpa = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
2802 if (bss_wpa) {
2803 p = bss_wpa;
2804 len = 2 + bss_wpa[1];
2805 found = true;
2806 }
2807 }
2808
2809 if (!found || wpa_parse_wpa_ie(p, len, &ie) < 0)
2810 return 0;
2811
2812 pmf = wpas_get_ssid_pmf(wpa_s, ssid);
2813 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
2814 pmf == MGMT_FRAME_PROTECTION_REQUIRED) {
2815 /* AP does not support MFP, local configuration requires it */
2816 wpa_supplicant_deauthenticate(
2817 wpa_s, WLAN_REASON_INVALID_RSN_IE_CAPAB);
2818 return -1;
2819 }
2820 if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
2821 pmf == NO_MGMT_FRAME_PROTECTION) {
2822 /* AP requires MFP, local configuration disables it */
2823 wpa_supplicant_deauthenticate(
2824 wpa_s, WLAN_REASON_INVALID_RSN_IE_CAPAB);
2825 return -1;
2826 }
2827
2828 /* Update PMF from local configuration now that MFP validation was done
2829 * above */
2830 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MFP, pmf);
2831
2832 /* Update GTK from AP's RSNE */
2833 sel = ie.group_cipher;
2834 if (ssid->group_cipher)
2835 sel &= ssid->group_cipher;
2836
2837 wpa_dbg(wpa_s, MSG_DEBUG,
2838 "WPA: AP group cipher 0x%x network group cipher 0x%x; available group cipher 0x%x",
2839 ie.group_cipher, ssid->group_cipher, sel);
2840 if (ie.group_cipher && !sel) {
2841 wpa_supplicant_deauthenticate(
2842 wpa_s, WLAN_REASON_GROUP_CIPHER_NOT_VALID);
2843 return -1;
2844 }
2845
2846 wpa_s->group_cipher = ie.group_cipher;
2847 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_GROUP, wpa_s->group_cipher);
2848 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using GTK %s",
2849 wpa_cipher_txt(wpa_s->group_cipher));
2850
2851 /* Update IGTK from AP RSN IE */
2852 sel = ie.mgmt_group_cipher;
2853 if (ssid->group_mgmt_cipher)
2854 sel &= ssid->group_mgmt_cipher;
2855
2856 wpa_dbg(wpa_s, MSG_DEBUG,
2857 "WPA: AP mgmt_group_cipher 0x%x network mgmt_group_cipher 0x%x; available mgmt_group_cipher 0x%x",
2858 ie.mgmt_group_cipher, ssid->group_mgmt_cipher, sel);
2859
2860 if (pmf == NO_MGMT_FRAME_PROTECTION ||
2861 !(ie.capabilities & WPA_CAPABILITY_MFPC)) {
2862 wpa_dbg(wpa_s, MSG_DEBUG,
2863 "WPA: STA/AP is not MFP capable; AP RSNE caps 0x%x",
2864 ie.capabilities);
2865 ie.mgmt_group_cipher = 0;
2866 }
2867
2868 if (ie.mgmt_group_cipher && !sel) {
2869 wpa_supplicant_deauthenticate(
2870 wpa_s, WLAN_REASON_CIPHER_SUITE_REJECTED);
2871 return -1;
2872 }
2873
2874 wpa_s->mgmt_group_cipher = ie.mgmt_group_cipher;
2875 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_MGMT_GROUP,
2876 wpa_s->mgmt_group_cipher);
2877 if (wpa_s->mgmt_group_cipher)
2878 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: using MGMT group cipher %s",
2879 wpa_cipher_txt(wpa_s->mgmt_group_cipher));
2880 else
2881 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: not using MGMT group cipher");
2882
2883 return 0;
2884 }
2885
2886
wpa_supplicant_event_associnfo(struct wpa_supplicant * wpa_s,union wpa_event_data * data)2887 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
2888 union wpa_event_data *data)
2889 {
2890 int l, len, found = 0, found_x = 0, wpa_found, rsn_found;
2891 const u8 *p;
2892 u8 bssid[ETH_ALEN];
2893 bool bssid_known;
2894
2895 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
2896 bssid_known = wpa_drv_get_bssid(wpa_s, bssid) == 0;
2897 if (data->assoc_info.req_ies)
2898 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
2899 data->assoc_info.req_ies_len);
2900 if (data->assoc_info.resp_ies) {
2901 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
2902 data->assoc_info.resp_ies_len);
2903 #ifdef CONFIG_TDLS
2904 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
2905 data->assoc_info.resp_ies_len);
2906 #endif /* CONFIG_TDLS */
2907 #ifdef CONFIG_WNM
2908 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2909 data->assoc_info.resp_ies_len);
2910 #endif /* CONFIG_WNM */
2911 #ifdef CONFIG_INTERWORKING
2912 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2913 data->assoc_info.resp_ies_len);
2914 #endif /* CONFIG_INTERWORKING */
2915 if (wpa_s->hw_capab == CAPAB_VHT &&
2916 get_ie(data->assoc_info.resp_ies,
2917 data->assoc_info.resp_ies_len, WLAN_EID_VHT_CAP))
2918 wpa_s->ieee80211ac = 1;
2919
2920 multi_ap_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2921 data->assoc_info.resp_ies_len);
2922 }
2923 if (data->assoc_info.beacon_ies)
2924 wpa_hexdump(MSG_DEBUG, "beacon_ies",
2925 data->assoc_info.beacon_ies,
2926 data->assoc_info.beacon_ies_len);
2927 if (data->assoc_info.freq)
2928 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
2929 data->assoc_info.freq);
2930
2931 wpa_s->connection_set = 0;
2932 if (data->assoc_info.req_ies && data->assoc_info.resp_ies) {
2933 struct ieee802_11_elems req_elems, resp_elems;
2934
2935 if (ieee802_11_parse_elems(data->assoc_info.req_ies,
2936 data->assoc_info.req_ies_len,
2937 &req_elems, 0) != ParseFailed &&
2938 ieee802_11_parse_elems(data->assoc_info.resp_ies,
2939 data->assoc_info.resp_ies_len,
2940 &resp_elems, 0) != ParseFailed) {
2941 wpa_s->connection_set = 1;
2942 wpa_s->connection_ht = req_elems.ht_capabilities &&
2943 resp_elems.ht_capabilities;
2944 /* Do not include subset of VHT on 2.4 GHz vendor
2945 * extension in consideration for reporting VHT
2946 * association. */
2947 wpa_s->connection_vht = req_elems.vht_capabilities &&
2948 resp_elems.vht_capabilities &&
2949 (!data->assoc_info.freq ||
2950 wpas_freq_to_band(data->assoc_info.freq) !=
2951 BAND_2_4_GHZ);
2952 wpa_s->connection_he = req_elems.he_capabilities &&
2953 resp_elems.he_capabilities;
2954 }
2955 }
2956
2957 p = data->assoc_info.req_ies;
2958 l = data->assoc_info.req_ies_len;
2959
2960 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
2961 while (p && l >= 2) {
2962 len = p[1] + 2;
2963 if (len > l) {
2964 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2965 p, l);
2966 break;
2967 }
2968 if (!found &&
2969 ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2970 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
2971 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
2972 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
2973 (p[0] == WLAN_EID_RSN && p[1] >= 2))) {
2974 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
2975 break;
2976 found = 1;
2977 wpa_find_assoc_pmkid(wpa_s);
2978 }
2979 if (!found_x && p[0] == WLAN_EID_RSNX) {
2980 if (wpa_sm_set_assoc_rsnxe(wpa_s->wpa, p, len))
2981 break;
2982 found_x = 1;
2983 }
2984 l -= len;
2985 p += len;
2986 }
2987 if (!found && data->assoc_info.req_ies)
2988 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2989 if (!found_x && data->assoc_info.req_ies)
2990 wpa_sm_set_assoc_rsnxe(wpa_s->wpa, NULL, 0);
2991
2992 #ifdef CONFIG_FILS
2993 #ifdef CONFIG_SME
2994 if ((wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS ||
2995 wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS_SK_PFS) &&
2996 (!data->assoc_info.resp_frame ||
2997 fils_process_assoc_resp(wpa_s->wpa,
2998 data->assoc_info.resp_frame,
2999 data->assoc_info.resp_frame_len) < 0)) {
3000 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
3001 return -1;
3002 }
3003 #endif /* CONFIG_SME */
3004
3005 /* Additional processing for FILS when SME is in driver */
3006 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS &&
3007 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
3008 wpa_sm_set_reset_fils_completed(wpa_s->wpa, 1);
3009 #endif /* CONFIG_FILS */
3010
3011 #ifdef CONFIG_OWE
3012 if (wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
3013 (!bssid_known ||
3014 owe_process_assoc_resp(wpa_s->wpa, bssid,
3015 data->assoc_info.resp_ies,
3016 data->assoc_info.resp_ies_len) < 0)) {
3017 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
3018 return -1;
3019 }
3020 #endif /* CONFIG_OWE */
3021
3022 #ifdef CONFIG_DPP2
3023 wpa_sm_set_dpp_z(wpa_s->wpa, NULL);
3024 if (DPP_VERSION > 1 && wpa_s->key_mgmt == WPA_KEY_MGMT_DPP &&
3025 wpa_s->dpp_pfs) {
3026 struct ieee802_11_elems elems;
3027
3028 if (ieee802_11_parse_elems(data->assoc_info.resp_ies,
3029 data->assoc_info.resp_ies_len,
3030 &elems, 0) == ParseFailed ||
3031 !elems.owe_dh)
3032 goto no_pfs;
3033 if (dpp_pfs_process(wpa_s->dpp_pfs, elems.owe_dh,
3034 elems.owe_dh_len) < 0) {
3035 wpa_supplicant_deauthenticate(wpa_s,
3036 WLAN_REASON_UNSPECIFIED);
3037 return -1;
3038 }
3039
3040 wpa_sm_set_dpp_z(wpa_s->wpa, wpa_s->dpp_pfs->secret);
3041 }
3042 no_pfs:
3043 #endif /* CONFIG_DPP2 */
3044
3045 #ifdef CONFIG_IEEE80211R
3046 #ifdef CONFIG_SME
3047 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
3048 if (!bssid_known ||
3049 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
3050 data->assoc_info.resp_ies,
3051 data->assoc_info.resp_ies_len,
3052 bssid) < 0) {
3053 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
3054 "Reassociation Response failed");
3055 wpa_supplicant_deauthenticate(
3056 wpa_s, WLAN_REASON_INVALID_IE);
3057 return -1;
3058 }
3059 }
3060
3061 p = data->assoc_info.resp_ies;
3062 l = data->assoc_info.resp_ies_len;
3063
3064 #ifdef CONFIG_WPS_STRICT
3065 if (p && wpa_s->current_ssid &&
3066 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
3067 struct wpabuf *wps;
3068 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
3069 if (wps == NULL) {
3070 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
3071 "include WPS IE in (Re)Association Response");
3072 return -1;
3073 }
3074
3075 if (wps_validate_assoc_resp(wps) < 0) {
3076 wpabuf_free(wps);
3077 wpa_supplicant_deauthenticate(
3078 wpa_s, WLAN_REASON_INVALID_IE);
3079 return -1;
3080 }
3081 wpabuf_free(wps);
3082 }
3083 #endif /* CONFIG_WPS_STRICT */
3084
3085 /* Go through the IEs and make a copy of the MDIE, if present. */
3086 while (p && l >= 2) {
3087 len = p[1] + 2;
3088 if (len > l) {
3089 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
3090 p, l);
3091 break;
3092 }
3093 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
3094 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
3095 wpa_s->sme.ft_used = 1;
3096 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
3097 MOBILITY_DOMAIN_ID_LEN);
3098 break;
3099 }
3100 l -= len;
3101 p += len;
3102 }
3103 #endif /* CONFIG_SME */
3104
3105 /* Process FT when SME is in the driver */
3106 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
3107 wpa_ft_is_completed(wpa_s->wpa)) {
3108 if (!bssid_known ||
3109 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
3110 data->assoc_info.resp_ies,
3111 data->assoc_info.resp_ies_len,
3112 bssid) < 0) {
3113 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
3114 "Reassociation Response failed");
3115 wpa_supplicant_deauthenticate(
3116 wpa_s, WLAN_REASON_INVALID_IE);
3117 return -1;
3118 }
3119 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
3120 }
3121
3122 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
3123 data->assoc_info.resp_ies_len);
3124 #endif /* CONFIG_IEEE80211R */
3125
3126 if (bssid_known)
3127 wpas_handle_assoc_resp_mscs(wpa_s, bssid,
3128 data->assoc_info.resp_ies,
3129 data->assoc_info.resp_ies_len);
3130
3131 /* WPA/RSN IE from Beacon/ProbeResp */
3132 p = data->assoc_info.beacon_ies;
3133 l = data->assoc_info.beacon_ies_len;
3134
3135 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
3136 */
3137 wpa_found = rsn_found = 0;
3138 while (p && l >= 2) {
3139 len = p[1] + 2;
3140 if (len > l) {
3141 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
3142 p, l);
3143 break;
3144 }
3145 if (!wpa_found &&
3146 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
3147 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
3148 wpa_found = 1;
3149 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
3150 }
3151
3152 if (!rsn_found &&
3153 p[0] == WLAN_EID_RSN && p[1] >= 2) {
3154 rsn_found = 1;
3155 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
3156 }
3157
3158 if (p[0] == WLAN_EID_RSNX && p[1] >= 1)
3159 wpa_sm_set_ap_rsnxe(wpa_s->wpa, p, len);
3160
3161 l -= len;
3162 p += len;
3163 }
3164
3165 if (!wpa_found && data->assoc_info.beacon_ies)
3166 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
3167 if (!rsn_found && data->assoc_info.beacon_ies) {
3168 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
3169 wpa_sm_set_ap_rsnxe(wpa_s->wpa, NULL, 0);
3170 }
3171 if (wpa_found || rsn_found)
3172 wpa_s->ap_ies_from_associnfo = 1;
3173
3174 if (wpa_s->assoc_freq && data->assoc_info.freq &&
3175 wpa_s->assoc_freq != data->assoc_info.freq) {
3176 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
3177 "%u to %u MHz",
3178 wpa_s->assoc_freq, data->assoc_info.freq);
3179 wpa_supplicant_update_scan_results(wpa_s);
3180 }
3181
3182 wpa_s->assoc_freq = data->assoc_info.freq;
3183
3184 wpas_handle_assoc_resp_qos_mgmt(wpa_s, data->assoc_info.resp_ies,
3185 data->assoc_info.resp_ies_len);
3186
3187 return 0;
3188 }
3189
3190
wpa_supplicant_assoc_update_ie(struct wpa_supplicant * wpa_s)3191 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
3192 {
3193 const u8 *bss_wpa = NULL, *bss_rsn = NULL, *bss_rsnx = NULL;
3194
3195 if (!wpa_s->current_bss || !wpa_s->current_ssid)
3196 return -1;
3197
3198 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
3199 return 0;
3200
3201 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
3202 WPA_IE_VENDOR_TYPE);
3203 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
3204 bss_rsnx = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSNX);
3205
3206 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
3207 bss_wpa ? 2 + bss_wpa[1] : 0) ||
3208 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
3209 bss_rsn ? 2 + bss_rsn[1] : 0) ||
3210 wpa_sm_set_ap_rsnxe(wpa_s->wpa, bss_rsnx,
3211 bss_rsnx ? 2 + bss_rsnx[1] : 0))
3212 return -1;
3213
3214 return 0;
3215 }
3216
3217
wpas_fst_update_mb_assoc(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3218 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
3219 union wpa_event_data *data)
3220 {
3221 #ifdef CONFIG_FST
3222 struct assoc_info *ai = data ? &data->assoc_info : NULL;
3223 struct wpa_bss *bss = wpa_s->current_bss;
3224 const u8 *ieprb, *iebcn;
3225
3226 wpabuf_free(wpa_s->received_mb_ies);
3227 wpa_s->received_mb_ies = NULL;
3228
3229 if (ai &&
3230 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
3231 wpa_printf(MSG_DEBUG,
3232 "FST: MB IEs updated from Association Response frame");
3233 return;
3234 }
3235
3236 if (ai &&
3237 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
3238 wpa_printf(MSG_DEBUG,
3239 "FST: MB IEs updated from association event Beacon IEs");
3240 return;
3241 }
3242
3243 if (!bss)
3244 return;
3245
3246 ieprb = wpa_bss_ie_ptr(bss);
3247 iebcn = ieprb + bss->ie_len;
3248
3249 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
3250 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
3251 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
3252 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
3253 #endif /* CONFIG_FST */
3254 }
3255
3256
wpa_supplicant_event_assoc(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3257 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
3258 union wpa_event_data *data)
3259 {
3260 u8 bssid[ETH_ALEN];
3261 int ft_completed, already_authorized;
3262 int new_bss = 0;
3263 #if defined(CONFIG_FILS) || defined(CONFIG_MBO)
3264 struct wpa_bss *bss;
3265 #endif /* CONFIG_FILS || CONFIG_MBO */
3266
3267 #ifdef CONFIG_AP
3268 if (wpa_s->ap_iface) {
3269 if (!data)
3270 return;
3271 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
3272 data->assoc_info.addr,
3273 data->assoc_info.req_ies,
3274 data->assoc_info.req_ies_len,
3275 data->assoc_info.reassoc);
3276 return;
3277 }
3278 #endif /* CONFIG_AP */
3279
3280 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
3281 wpa_s->own_reconnect_req = 0;
3282
3283 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
3284 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
3285 return;
3286 /*
3287 * FILS authentication can share the same mechanism to mark the
3288 * connection fully authenticated, so set ft_completed also based on
3289 * FILS result.
3290 */
3291 if (!ft_completed)
3292 ft_completed = wpa_fils_is_completed(wpa_s->wpa);
3293
3294 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
3295 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
3296 wpa_supplicant_deauthenticate(
3297 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3298 return;
3299 }
3300
3301 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
3302 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
3303 if (os_reltime_initialized(&wpa_s->session_start)) {
3304 os_reltime_age(&wpa_s->session_start,
3305 &wpa_s->session_length);
3306 wpa_s->session_start.sec = 0;
3307 wpa_s->session_start.usec = 0;
3308 wpas_notify_session_length(wpa_s);
3309 } else {
3310 wpas_notify_auth_changed(wpa_s);
3311 os_get_reltime(&wpa_s->session_start);
3312 }
3313 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
3314 MACSTR, MAC2STR(bssid));
3315 new_bss = 1;
3316 random_add_randomness(bssid, ETH_ALEN);
3317 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
3318 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
3319 wpas_notify_bssid_changed(wpa_s);
3320
3321 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
3322 wpa_clear_keys(wpa_s, bssid);
3323 }
3324 if (wpa_supplicant_select_config(wpa_s) < 0) {
3325 wpa_supplicant_deauthenticate(
3326 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3327 return;
3328 }
3329 }
3330
3331 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
3332 data && wpa_supplicant_use_own_rsne_params(wpa_s, data) < 0)
3333 return;
3334
3335 multi_ap_set_4addr_mode(wpa_s);
3336
3337 if (wpa_s->conf->ap_scan == 1 &&
3338 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
3339 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
3340 wpa_msg(wpa_s, MSG_WARNING,
3341 "WPA/RSN IEs not updated");
3342 }
3343
3344 wpas_fst_update_mb_assoc(wpa_s, data);
3345
3346 #ifdef CONFIG_SME
3347 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
3348 wpa_s->sme.prev_bssid_set = 1;
3349 wpa_s->sme.last_unprot_disconnect.sec = 0;
3350 #endif /* CONFIG_SME */
3351
3352 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
3353 if (wpa_s->current_ssid) {
3354 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
3355 * initialized before association, but for other modes,
3356 * initialize PC/SC here, if the current configuration needs
3357 * smartcard or SIM/USIM. */
3358 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
3359 }
3360 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
3361 if (wpa_s->l2)
3362 l2_packet_notify_auth_start(wpa_s->l2);
3363
3364 already_authorized = data && data->assoc_info.authorized;
3365
3366 /*
3367 * Set portEnabled first to false in order to get EAP state machine out
3368 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
3369 * state machine may transit to AUTHENTICATING state based on obsolete
3370 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
3371 * AUTHENTICATED without ever giving chance to EAP state machine to
3372 * reset the state.
3373 */
3374 if (!ft_completed && !already_authorized) {
3375 eapol_sm_notify_portEnabled(wpa_s->eapol, false);
3376 eapol_sm_notify_portValid(wpa_s->eapol, false);
3377 }
3378 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3379 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP ||
3380 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE || ft_completed ||
3381 already_authorized || wpa_s->drv_authorized_port)
3382 eapol_sm_notify_eap_success(wpa_s->eapol, false);
3383 /* 802.1X::portControl = Auto */
3384 eapol_sm_notify_portEnabled(wpa_s->eapol, true);
3385 wpa_s->eapol_received = 0;
3386 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
3387 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
3388 (wpa_s->current_ssid &&
3389 wpa_s->current_ssid->mode == WPAS_MODE_IBSS)) {
3390 if (wpa_s->current_ssid &&
3391 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
3392 (wpa_s->drv_flags &
3393 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
3394 /*
3395 * Set the key after having received joined-IBSS event
3396 * from the driver.
3397 */
3398 wpa_supplicant_set_wpa_none_key(wpa_s,
3399 wpa_s->current_ssid);
3400 }
3401 wpa_supplicant_cancel_auth_timeout(wpa_s);
3402 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3403 } else if (!ft_completed) {
3404 /* Timeout for receiving the first EAPOL packet */
3405 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
3406 }
3407 wpa_supplicant_cancel_scan(wpa_s);
3408
3409 if (ft_completed) {
3410 /*
3411 * FT protocol completed - make sure EAPOL state machine ends
3412 * up in authenticated.
3413 */
3414 wpa_supplicant_cancel_auth_timeout(wpa_s);
3415 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3416 eapol_sm_notify_portValid(wpa_s->eapol, true);
3417 eapol_sm_notify_eap_success(wpa_s->eapol, true);
3418 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK) &&
3419 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
3420 /*
3421 * We are done; the driver will take care of RSN 4-way
3422 * handshake.
3423 */
3424 wpa_supplicant_cancel_auth_timeout(wpa_s);
3425 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3426 eapol_sm_notify_portValid(wpa_s->eapol, true);
3427 eapol_sm_notify_eap_success(wpa_s->eapol, true);
3428 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X) &&
3429 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
3430 /*
3431 * The driver will take care of RSN 4-way handshake, so we need
3432 * to allow EAPOL supplicant to complete its work without
3433 * waiting for WPA supplicant.
3434 */
3435 eapol_sm_notify_portValid(wpa_s->eapol, true);
3436 }
3437
3438 wpa_s->last_eapol_matches_bssid = 0;
3439
3440 #ifdef CONFIG_TESTING_OPTIONS
3441 if (wpa_s->rsne_override_eapol) {
3442 wpa_printf(MSG_DEBUG,
3443 "TESTING: RSNE EAPOL-Key msg 2/4 override");
3444 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa,
3445 wpabuf_head(wpa_s->rsne_override_eapol),
3446 wpabuf_len(wpa_s->rsne_override_eapol));
3447 }
3448 if (wpa_s->rsnxe_override_eapol) {
3449 wpa_printf(MSG_DEBUG,
3450 "TESTING: RSNXE EAPOL-Key msg 2/4 override");
3451 wpa_sm_set_assoc_rsnxe(wpa_s->wpa,
3452 wpabuf_head(wpa_s->rsnxe_override_eapol),
3453 wpabuf_len(wpa_s->rsnxe_override_eapol));
3454 }
3455 #endif /* CONFIG_TESTING_OPTIONS */
3456
3457 if (wpa_s->pending_eapol_rx) {
3458 struct os_reltime now, age;
3459 os_get_reltime(&now);
3460 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
3461 if (age.sec == 0 && age.usec < 200000 &&
3462 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
3463 0) {
3464 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
3465 "frame that was received just before "
3466 "association notification");
3467 wpa_supplicant_rx_eapol(
3468 wpa_s, wpa_s->pending_eapol_rx_src,
3469 wpabuf_head(wpa_s->pending_eapol_rx),
3470 wpabuf_len(wpa_s->pending_eapol_rx));
3471 }
3472 wpabuf_free(wpa_s->pending_eapol_rx);
3473 wpa_s->pending_eapol_rx = NULL;
3474 }
3475
3476 #ifdef CONFIG_WEP
3477 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
3478 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
3479 wpa_s->current_ssid &&
3480 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
3481 /* Set static WEP keys again */
3482 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
3483 }
3484 #endif /* CONFIG_WEP */
3485
3486 #ifdef CONFIG_IBSS_RSN
3487 if (wpa_s->current_ssid &&
3488 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3489 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
3490 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
3491 wpa_s->ibss_rsn == NULL) {
3492 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s, wpa_s->current_ssid);
3493 if (!wpa_s->ibss_rsn) {
3494 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
3495 wpa_supplicant_deauthenticate(
3496 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
3497 return;
3498 }
3499
3500 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
3501 }
3502 #endif /* CONFIG_IBSS_RSN */
3503
3504 wpas_wps_notify_assoc(wpa_s, bssid);
3505
3506 if (data) {
3507 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
3508 data->assoc_info.resp_ies_len,
3509 &data->assoc_info.wmm_params);
3510
3511 if (wpa_s->reassoc_same_bss)
3512 wmm_ac_restore_tspecs(wpa_s);
3513 }
3514
3515 #if defined(CONFIG_FILS) || defined(CONFIG_MBO)
3516 bss = wpa_bss_get_bssid(wpa_s, bssid);
3517 #endif /* CONFIG_FILS || CONFIG_MBO */
3518 #ifdef CONFIG_FILS
3519 if (wpa_key_mgmt_fils(wpa_s->key_mgmt)) {
3520 const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
3521
3522 if (fils_cache_id)
3523 wpa_sm_set_fils_cache_id(wpa_s->wpa, fils_cache_id);
3524 }
3525 #endif /* CONFIG_FILS */
3526
3527 #ifdef CONFIG_MBO
3528 wpas_mbo_check_pmf(wpa_s, bss, wpa_s->current_ssid);
3529 #endif /* CONFIG_MBO */
3530
3531 #ifdef CONFIG_DPP2
3532 wpa_s->dpp_pfs_fallback = 0;
3533 #endif /* CONFIG_DPP2 */
3534 }
3535
3536
disconnect_reason_recoverable(u16 reason_code)3537 static int disconnect_reason_recoverable(u16 reason_code)
3538 {
3539 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
3540 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
3541 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
3542 }
3543
3544
wpa_supplicant_event_disassoc(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)3545 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
3546 u16 reason_code,
3547 int locally_generated)
3548 {
3549 const u8 *bssid;
3550
3551 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
3552 /*
3553 * At least Host AP driver and a Prism3 card seemed to be
3554 * generating streams of disconnected events when configuring
3555 * IBSS for WPA-None. Ignore them for now.
3556 */
3557 return;
3558 }
3559
3560 bssid = wpa_s->bssid;
3561 if (is_zero_ether_addr(bssid))
3562 bssid = wpa_s->pending_bssid;
3563
3564 if (!is_zero_ether_addr(bssid) ||
3565 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3566 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
3567 " reason=%d%s",
3568 MAC2STR(bssid), reason_code,
3569 locally_generated ? " locally_generated=1" : "");
3570 }
3571 }
3572
3573
could_be_psk_mismatch(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)3574 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
3575 int locally_generated)
3576 {
3577 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
3578 !wpa_s->new_connection ||
3579 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) ||
3580 wpa_key_mgmt_sae(wpa_s->key_mgmt))
3581 return 0; /* Not in initial 4-way handshake with PSK */
3582
3583 /*
3584 * It looks like connection was lost while trying to go through PSK
3585 * 4-way handshake. Filter out known disconnection cases that are caused
3586 * by something else than PSK mismatch to avoid confusing reports.
3587 */
3588
3589 if (locally_generated) {
3590 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
3591 return 0;
3592 }
3593
3594 return 1;
3595 }
3596
3597
wpa_supplicant_event_disassoc_finish(struct wpa_supplicant * wpa_s,u16 reason_code,int locally_generated)3598 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
3599 u16 reason_code,
3600 int locally_generated)
3601 {
3602 const u8 *bssid;
3603 int authenticating;
3604 u8 prev_pending_bssid[ETH_ALEN];
3605 struct wpa_bss *fast_reconnect = NULL;
3606 struct wpa_ssid *fast_reconnect_ssid = NULL;
3607 struct wpa_ssid *last_ssid;
3608 struct wpa_bss *curr = NULL;
3609
3610 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
3611 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
3612
3613 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
3614 /*
3615 * At least Host AP driver and a Prism3 card seemed to be
3616 * generating streams of disconnected events when configuring
3617 * IBSS for WPA-None. Ignore them for now.
3618 */
3619 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
3620 "IBSS/WPA-None mode");
3621 return;
3622 }
3623
3624 if (!wpa_s->disconnected && wpa_s->wpa_state >= WPA_AUTHENTICATING &&
3625 reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY &&
3626 locally_generated)
3627 /*
3628 * Remove the inactive AP (which is probably out of range) from
3629 * the BSS list after marking disassociation. In particular
3630 * mac80211-based drivers use the
3631 * WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in
3632 * locally generated disconnection events for cases where the
3633 * AP does not reply anymore.
3634 */
3635 curr = wpa_s->current_bss;
3636
3637 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
3638 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
3639 "pre-shared key may be incorrect");
3640 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
3641 return; /* P2P group removed */
3642 wpas_auth_failed(wpa_s, "WRONG_KEY");
3643 #ifdef CONFIG_DPP2
3644 wpas_dpp_send_conn_status_result(wpa_s,
3645 DPP_STATUS_AUTH_FAILURE);
3646 #endif /* CONFIG_DPP2 */
3647 }
3648 if (!wpa_s->disconnected &&
3649 (!wpa_s->auto_reconnect_disabled ||
3650 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
3651 wpas_wps_searching(wpa_s) ||
3652 wpas_wps_reenable_networks_pending(wpa_s))) {
3653 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
3654 "reconnect (wps=%d/%d wpa_state=%d)",
3655 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
3656 wpas_wps_searching(wpa_s),
3657 wpa_s->wpa_state);
3658 if (wpa_s->wpa_state == WPA_COMPLETED &&
3659 wpa_s->current_ssid &&
3660 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
3661 (wpa_s->own_reconnect_req ||
3662 (!locally_generated &&
3663 disconnect_reason_recoverable(reason_code)))) {
3664 /*
3665 * It looks like the AP has dropped association with
3666 * us, but could allow us to get back in. This is also
3667 * triggered for cases where local reconnection request
3668 * is used to force reassociation with the same BSS.
3669 * Try to reconnect to the same BSS without a full scan
3670 * to save time for some common cases.
3671 */
3672 fast_reconnect = wpa_s->current_bss;
3673 fast_reconnect_ssid = wpa_s->current_ssid;
3674 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) {
3675 wpa_supplicant_req_scan(wpa_s, 0, 100000);
3676 } else {
3677 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
3678 "immediate scan");
3679 }
3680 } else {
3681 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
3682 "try to re-connect");
3683 wpa_s->reassociate = 0;
3684 wpa_s->disconnected = 1;
3685 if (!wpa_s->pno)
3686 wpa_supplicant_cancel_sched_scan(wpa_s);
3687 }
3688 bssid = wpa_s->bssid;
3689 if (is_zero_ether_addr(bssid))
3690 bssid = wpa_s->pending_bssid;
3691 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
3692 wpas_connection_failed(wpa_s, bssid);
3693 wpa_sm_notify_disassoc(wpa_s->wpa);
3694 ptksa_cache_flush(wpa_s->ptksa, wpa_s->bssid, WPA_CIPHER_NONE);
3695
3696 if (locally_generated)
3697 wpa_s->disconnect_reason = -reason_code;
3698 else
3699 wpa_s->disconnect_reason = reason_code;
3700 wpas_notify_disconnect_reason(wpa_s);
3701 if (wpa_supplicant_dynamic_keys(wpa_s)) {
3702 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
3703 wpa_clear_keys(wpa_s, wpa_s->bssid);
3704 }
3705 last_ssid = wpa_s->current_ssid;
3706 wpa_supplicant_mark_disassoc(wpa_s);
3707
3708 if (curr)
3709 wpa_bss_remove(wpa_s, curr, "Connection to AP lost");
3710
3711 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
3712 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
3713 wpa_s->current_ssid = last_ssid;
3714 }
3715
3716 if (fast_reconnect &&
3717 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
3718 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
3719 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
3720 fast_reconnect->ssid_len) &&
3721 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
3722 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect)) {
3723 #ifndef CONFIG_NO_SCAN_PROCESSING
3724 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
3725 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
3726 fast_reconnect_ssid) < 0) {
3727 /* Recover through full scan */
3728 wpa_supplicant_req_scan(wpa_s, 0, 100000);
3729 }
3730 #endif /* CONFIG_NO_SCAN_PROCESSING */
3731 } else if (fast_reconnect) {
3732 /*
3733 * Could not reconnect to the same BSS due to network being
3734 * disabled. Use a new scan to match the alternative behavior
3735 * above, i.e., to continue automatic reconnection attempt in a
3736 * way that enforces disabled network rules.
3737 */
3738 wpa_supplicant_req_scan(wpa_s, 0, 100000);
3739 }
3740 }
3741
3742
3743 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
wpa_supplicant_delayed_mic_error_report(void * eloop_ctx,void * sock_ctx)3744 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
3745 {
3746 struct wpa_supplicant *wpa_s = eloop_ctx;
3747
3748 if (!wpa_s->pending_mic_error_report)
3749 return;
3750
3751 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
3752 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
3753 wpa_s->pending_mic_error_report = 0;
3754 }
3755 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3756
3757
3758 static void
wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3759 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
3760 union wpa_event_data *data)
3761 {
3762 int pairwise;
3763 struct os_reltime t;
3764
3765 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
3766 pairwise = (data && data->michael_mic_failure.unicast);
3767 os_get_reltime(&t);
3768 if ((wpa_s->last_michael_mic_error.sec &&
3769 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
3770 wpa_s->pending_mic_error_report) {
3771 if (wpa_s->pending_mic_error_report) {
3772 /*
3773 * Send the pending MIC error report immediately since
3774 * we are going to start countermeasures and AP better
3775 * do the same.
3776 */
3777 wpa_sm_key_request(wpa_s->wpa, 1,
3778 wpa_s->pending_mic_error_pairwise);
3779 }
3780
3781 /* Send the new MIC error report immediately since we are going
3782 * to start countermeasures and AP better do the same.
3783 */
3784 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3785
3786 /* initialize countermeasures */
3787 wpa_s->countermeasures = 1;
3788
3789 wpa_bssid_ignore_add(wpa_s, wpa_s->bssid);
3790
3791 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
3792
3793 /*
3794 * Need to wait for completion of request frame. We do not get
3795 * any callback for the message completion, so just wait a
3796 * short while and hope for the best. */
3797 os_sleep(0, 10000);
3798
3799 wpa_drv_set_countermeasures(wpa_s, 1);
3800 wpa_supplicant_deauthenticate(wpa_s,
3801 WLAN_REASON_MICHAEL_MIC_FAILURE);
3802 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
3803 wpa_s, NULL);
3804 eloop_register_timeout(60, 0,
3805 wpa_supplicant_stop_countermeasures,
3806 wpa_s, NULL);
3807 /* TODO: mark the AP rejected for 60 second. STA is
3808 * allowed to associate with another AP.. */
3809 } else {
3810 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
3811 if (wpa_s->mic_errors_seen) {
3812 /*
3813 * Reduce the effectiveness of Michael MIC error
3814 * reports as a means for attacking against TKIP if
3815 * more than one MIC failure is noticed with the same
3816 * PTK. We delay the transmission of the reports by a
3817 * random time between 0 and 60 seconds in order to
3818 * force the attacker wait 60 seconds before getting
3819 * the information on whether a frame resulted in a MIC
3820 * failure.
3821 */
3822 u8 rval[4];
3823 int sec;
3824
3825 if (os_get_random(rval, sizeof(rval)) < 0)
3826 sec = os_random() % 60;
3827 else
3828 sec = WPA_GET_BE32(rval) % 60;
3829 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
3830 "report %d seconds", sec);
3831 wpa_s->pending_mic_error_report = 1;
3832 wpa_s->pending_mic_error_pairwise = pairwise;
3833 eloop_cancel_timeout(
3834 wpa_supplicant_delayed_mic_error_report,
3835 wpa_s, NULL);
3836 eloop_register_timeout(
3837 sec, os_random() % 1000000,
3838 wpa_supplicant_delayed_mic_error_report,
3839 wpa_s, NULL);
3840 } else {
3841 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3842 }
3843 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3844 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
3845 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
3846 }
3847 wpa_s->last_michael_mic_error = t;
3848 wpa_s->mic_errors_seen++;
3849 }
3850
3851
3852 #ifdef CONFIG_TERMINATE_ONLASTIF
any_interfaces(struct wpa_supplicant * head)3853 static int any_interfaces(struct wpa_supplicant *head)
3854 {
3855 struct wpa_supplicant *wpa_s;
3856
3857 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
3858 if (!wpa_s->interface_removed)
3859 return 1;
3860 return 0;
3861 }
3862 #endif /* CONFIG_TERMINATE_ONLASTIF */
3863
3864
3865 static void
wpa_supplicant_event_interface_status(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3866 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
3867 union wpa_event_data *data)
3868 {
3869 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
3870 return;
3871
3872 switch (data->interface_status.ievent) {
3873 case EVENT_INTERFACE_ADDED:
3874 if (!wpa_s->interface_removed)
3875 break;
3876 wpa_s->interface_removed = 0;
3877 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
3878 if (wpa_supplicant_driver_init(wpa_s) < 0) {
3879 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
3880 "driver after interface was added");
3881 }
3882
3883 #ifdef CONFIG_P2P
3884 if (!wpa_s->global->p2p &&
3885 !wpa_s->global->p2p_disabled &&
3886 !wpa_s->conf->p2p_disabled &&
3887 (wpa_s->drv_flags &
3888 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
3889 wpas_p2p_add_p2pdev_interface(
3890 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
3891 wpa_printf(MSG_INFO,
3892 "P2P: Failed to enable P2P Device interface");
3893 /* Try to continue without. P2P will be disabled. */
3894 }
3895 #endif /* CONFIG_P2P */
3896
3897 break;
3898 case EVENT_INTERFACE_REMOVED:
3899 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
3900 wpa_s->interface_removed = 1;
3901 wpa_supplicant_mark_disassoc(wpa_s);
3902 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3903 l2_packet_deinit(wpa_s->l2);
3904 wpa_s->l2 = NULL;
3905
3906 #ifdef CONFIG_P2P
3907 if (wpa_s->global->p2p &&
3908 wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
3909 (wpa_s->drv_flags &
3910 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
3911 wpa_dbg(wpa_s, MSG_DEBUG,
3912 "Removing P2P Device interface");
3913 wpa_supplicant_remove_iface(
3914 wpa_s->global, wpa_s->global->p2p_init_wpa_s,
3915 0);
3916 wpa_s->global->p2p_init_wpa_s = NULL;
3917 }
3918 #endif /* CONFIG_P2P */
3919
3920 #ifdef CONFIG_MATCH_IFACE
3921 if (wpa_s->matched) {
3922 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
3923 break;
3924 }
3925 #endif /* CONFIG_MATCH_IFACE */
3926
3927 #ifdef CONFIG_TERMINATE_ONLASTIF
3928 /* check if last interface */
3929 if (!any_interfaces(wpa_s->global->ifaces))
3930 eloop_terminate();
3931 #endif /* CONFIG_TERMINATE_ONLASTIF */
3932 break;
3933 }
3934 }
3935
3936
3937 #ifdef CONFIG_TDLS
wpa_supplicant_event_tdls(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3938 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
3939 union wpa_event_data *data)
3940 {
3941 if (data == NULL)
3942 return;
3943 switch (data->tdls.oper) {
3944 case TDLS_REQUEST_SETUP:
3945 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
3946 if (wpa_tdls_is_external_setup(wpa_s->wpa))
3947 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
3948 else
3949 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
3950 break;
3951 case TDLS_REQUEST_TEARDOWN:
3952 if (wpa_tdls_is_external_setup(wpa_s->wpa))
3953 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
3954 data->tdls.reason_code);
3955 else
3956 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
3957 data->tdls.peer);
3958 break;
3959 case TDLS_REQUEST_DISCOVER:
3960 wpa_tdls_send_discovery_request(wpa_s->wpa,
3961 data->tdls.peer);
3962 break;
3963 }
3964 }
3965 #endif /* CONFIG_TDLS */
3966
3967
3968 #ifdef CONFIG_WNM
wpa_supplicant_event_wnm(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3969 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
3970 union wpa_event_data *data)
3971 {
3972 if (data == NULL)
3973 return;
3974 switch (data->wnm.oper) {
3975 case WNM_OPER_SLEEP:
3976 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
3977 "(action=%d, intval=%d)",
3978 data->wnm.sleep_action, data->wnm.sleep_intval);
3979 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
3980 data->wnm.sleep_intval, NULL);
3981 break;
3982 }
3983 }
3984 #endif /* CONFIG_WNM */
3985
3986
3987 #ifdef CONFIG_IEEE80211R
3988 static void
wpa_supplicant_event_ft_response(struct wpa_supplicant * wpa_s,union wpa_event_data * data)3989 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
3990 union wpa_event_data *data)
3991 {
3992 if (data == NULL)
3993 return;
3994
3995 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
3996 data->ft_ies.ies_len,
3997 data->ft_ies.ft_action,
3998 data->ft_ies.target_ap,
3999 data->ft_ies.ric_ies,
4000 data->ft_ies.ric_ies_len) < 0) {
4001 /* TODO: prevent MLME/driver from trying to associate? */
4002 }
4003 }
4004 #endif /* CONFIG_IEEE80211R */
4005
4006
4007 #ifdef CONFIG_IBSS_RSN
wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4008 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
4009 union wpa_event_data *data)
4010 {
4011 struct wpa_ssid *ssid;
4012 if (wpa_s->wpa_state < WPA_ASSOCIATED)
4013 return;
4014 if (data == NULL)
4015 return;
4016 ssid = wpa_s->current_ssid;
4017 if (ssid == NULL)
4018 return;
4019 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
4020 return;
4021
4022 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
4023 }
4024
4025
wpa_supplicant_event_ibss_auth(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4026 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
4027 union wpa_event_data *data)
4028 {
4029 struct wpa_ssid *ssid = wpa_s->current_ssid;
4030
4031 if (ssid == NULL)
4032 return;
4033
4034 /* check if the ssid is correctly configured as IBSS/RSN */
4035 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
4036 return;
4037
4038 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
4039 data->rx_mgmt.frame_len);
4040 }
4041 #endif /* CONFIG_IBSS_RSN */
4042
4043
4044 #ifdef CONFIG_IEEE80211R
ft_rx_action(struct wpa_supplicant * wpa_s,const u8 * data,size_t len)4045 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
4046 size_t len)
4047 {
4048 const u8 *sta_addr, *target_ap_addr;
4049 u16 status;
4050
4051 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
4052 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
4053 return; /* only SME case supported for now */
4054 if (len < 1 + 2 * ETH_ALEN + 2)
4055 return;
4056 if (data[0] != 2)
4057 return; /* Only FT Action Response is supported for now */
4058 sta_addr = data + 1;
4059 target_ap_addr = data + 1 + ETH_ALEN;
4060 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
4061 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
4062 MACSTR " TargetAP " MACSTR " status %u",
4063 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
4064
4065 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
4066 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
4067 " in FT Action Response", MAC2STR(sta_addr));
4068 return;
4069 }
4070
4071 if (status) {
4072 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
4073 "failure (status code %d)", status);
4074 /* TODO: report error to FT code(?) */
4075 return;
4076 }
4077
4078 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
4079 len - (1 + 2 * ETH_ALEN + 2), 1,
4080 target_ap_addr, NULL, 0) < 0)
4081 return;
4082
4083 #ifdef CONFIG_SME
4084 {
4085 struct wpa_bss *bss;
4086 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
4087 if (bss)
4088 wpa_s->sme.freq = bss->freq;
4089 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
4090 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
4091 WLAN_AUTH_FT);
4092 }
4093 #endif /* CONFIG_SME */
4094 }
4095 #endif /* CONFIG_IEEE80211R */
4096
4097
wpa_supplicant_event_unprot_deauth(struct wpa_supplicant * wpa_s,struct unprot_deauth * e)4098 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
4099 struct unprot_deauth *e)
4100 {
4101 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
4102 "dropped: " MACSTR " -> " MACSTR
4103 " (reason code %u)",
4104 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
4105 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
4106 }
4107
4108
wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant * wpa_s,struct unprot_disassoc * e)4109 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
4110 struct unprot_disassoc *e)
4111 {
4112 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
4113 "dropped: " MACSTR " -> " MACSTR
4114 " (reason code %u)",
4115 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
4116 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
4117 }
4118
4119
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)4120 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
4121 u16 reason_code, int locally_generated,
4122 const u8 *ie, size_t ie_len, int deauth)
4123 {
4124 #ifdef CONFIG_AP
4125 if (wpa_s->ap_iface && addr) {
4126 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
4127 return;
4128 }
4129
4130 if (wpa_s->ap_iface) {
4131 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
4132 return;
4133 }
4134 #endif /* CONFIG_AP */
4135
4136 if (!locally_generated)
4137 wpa_s->own_disconnect_req = 0;
4138
4139 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
4140
4141 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
4142 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
4143 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
4144 eapol_sm_failed(wpa_s->eapol))) &&
4145 !wpa_s->eap_expected_failure))
4146 wpas_auth_failed(wpa_s, "AUTH_FAILED");
4147
4148 #ifdef CONFIG_P2P
4149 if (deauth && reason_code > 0) {
4150 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
4151 locally_generated) > 0) {
4152 /*
4153 * The interface was removed, so cannot continue
4154 * processing any additional operations after this.
4155 */
4156 return;
4157 }
4158 }
4159 #endif /* CONFIG_P2P */
4160
4161 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
4162 locally_generated);
4163 }
4164
4165
wpas_event_disassoc(struct wpa_supplicant * wpa_s,struct disassoc_info * info)4166 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
4167 struct disassoc_info *info)
4168 {
4169 u16 reason_code = 0;
4170 int locally_generated = 0;
4171 const u8 *addr = NULL;
4172 const u8 *ie = NULL;
4173 size_t ie_len = 0;
4174
4175 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
4176
4177 if (info) {
4178 addr = info->addr;
4179 ie = info->ie;
4180 ie_len = info->ie_len;
4181 reason_code = info->reason_code;
4182 locally_generated = info->locally_generated;
4183 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s", reason_code,
4184 reason2str(reason_code),
4185 locally_generated ? " locally_generated=1" : "");
4186 if (addr)
4187 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
4188 MAC2STR(addr));
4189 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
4190 ie, ie_len);
4191 }
4192
4193 #ifdef CONFIG_AP
4194 if (wpa_s->ap_iface && info && info->addr) {
4195 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
4196 return;
4197 }
4198
4199 if (wpa_s->ap_iface) {
4200 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
4201 return;
4202 }
4203 #endif /* CONFIG_AP */
4204
4205 #ifdef CONFIG_P2P
4206 if (info) {
4207 wpas_p2p_disassoc_notif(
4208 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
4209 locally_generated);
4210 }
4211 #endif /* CONFIG_P2P */
4212
4213 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
4214 sme_event_disassoc(wpa_s, info);
4215
4216 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
4217 ie, ie_len, 0);
4218 }
4219
4220
wpas_event_deauth(struct wpa_supplicant * wpa_s,struct deauth_info * info)4221 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
4222 struct deauth_info *info)
4223 {
4224 u16 reason_code = 0;
4225 int locally_generated = 0;
4226 const u8 *addr = NULL;
4227 const u8 *ie = NULL;
4228 size_t ie_len = 0;
4229
4230 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
4231
4232 if (info) {
4233 addr = info->addr;
4234 ie = info->ie;
4235 ie_len = info->ie_len;
4236 reason_code = info->reason_code;
4237 locally_generated = info->locally_generated;
4238 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u (%s)%s",
4239 reason_code, reason2str(reason_code),
4240 locally_generated ? " locally_generated=1" : "");
4241 if (addr) {
4242 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
4243 MAC2STR(addr));
4244 }
4245 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
4246 ie, ie_len);
4247 }
4248
4249 wpa_reset_ft_completed(wpa_s->wpa);
4250
4251 wpas_event_disconnect(wpa_s, addr, reason_code,
4252 locally_generated, ie, ie_len, 1);
4253 }
4254
4255
reg_init_str(enum reg_change_initiator init)4256 static const char * reg_init_str(enum reg_change_initiator init)
4257 {
4258 switch (init) {
4259 case REGDOM_SET_BY_CORE:
4260 return "CORE";
4261 case REGDOM_SET_BY_USER:
4262 return "USER";
4263 case REGDOM_SET_BY_DRIVER:
4264 return "DRIVER";
4265 case REGDOM_SET_BY_COUNTRY_IE:
4266 return "COUNTRY_IE";
4267 case REGDOM_BEACON_HINT:
4268 return "BEACON_HINT";
4269 }
4270 return "?";
4271 }
4272
4273
reg_type_str(enum reg_type type)4274 static const char * reg_type_str(enum reg_type type)
4275 {
4276 switch (type) {
4277 case REGDOM_TYPE_UNKNOWN:
4278 return "UNKNOWN";
4279 case REGDOM_TYPE_COUNTRY:
4280 return "COUNTRY";
4281 case REGDOM_TYPE_WORLD:
4282 return "WORLD";
4283 case REGDOM_TYPE_CUSTOM_WORLD:
4284 return "CUSTOM_WORLD";
4285 case REGDOM_TYPE_INTERSECTION:
4286 return "INTERSECTION";
4287 }
4288 return "?";
4289 }
4290
4291
wpa_supplicant_update_channel_list(struct wpa_supplicant * wpa_s,struct channel_list_changed * info)4292 void wpa_supplicant_update_channel_list(struct wpa_supplicant *wpa_s,
4293 struct channel_list_changed *info)
4294 {
4295 struct wpa_supplicant *ifs;
4296 u8 dfs_domain;
4297
4298 /*
4299 * To allow backwards compatibility with higher level layers that
4300 * assumed the REGDOM_CHANGE event is sent over the initially added
4301 * interface. Find the highest parent of this interface and use it to
4302 * send the event.
4303 */
4304 for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
4305 ;
4306
4307 if (info) {
4308 wpa_msg(ifs, MSG_INFO,
4309 WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
4310 reg_init_str(info->initiator), reg_type_str(info->type),
4311 info->alpha2[0] ? " alpha2=" : "",
4312 info->alpha2[0] ? info->alpha2 : "");
4313 }
4314
4315 if (wpa_s->drv_priv == NULL)
4316 return; /* Ignore event during drv initialization */
4317
4318 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
4319 radio_list) {
4320 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
4321 ifs->ifname);
4322 free_hw_features(ifs);
4323 ifs->hw.modes = wpa_drv_get_hw_feature_data(
4324 ifs, &ifs->hw.num_modes, &ifs->hw.flags, &dfs_domain);
4325
4326 /* Restart PNO/sched_scan with updated channel list */
4327 if (ifs->pno) {
4328 wpas_stop_pno(ifs);
4329 wpas_start_pno(ifs);
4330 } else if (ifs->sched_scanning && !ifs->pno_sched_pending) {
4331 wpa_dbg(ifs, MSG_DEBUG,
4332 "Channel list changed - restart sched_scan");
4333 wpas_scan_restart_sched_scan(ifs);
4334 }
4335 }
4336
4337 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
4338 }
4339
4340
wpas_event_rx_mgmt_action(struct wpa_supplicant * wpa_s,const u8 * frame,size_t len,int freq,int rssi)4341 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
4342 const u8 *frame, size_t len, int freq,
4343 int rssi)
4344 {
4345 const struct ieee80211_mgmt *mgmt;
4346 const u8 *payload;
4347 size_t plen;
4348 u8 category;
4349
4350 if (len < IEEE80211_HDRLEN + 2)
4351 return;
4352
4353 mgmt = (const struct ieee80211_mgmt *) frame;
4354 payload = frame + IEEE80211_HDRLEN;
4355 category = *payload++;
4356 plen = len - IEEE80211_HDRLEN - 1;
4357
4358 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
4359 " Category=%u DataLen=%d freq=%d MHz",
4360 MAC2STR(mgmt->sa), category, (int) plen, freq);
4361
4362 if (category == WLAN_ACTION_WMM) {
4363 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
4364 return;
4365 }
4366
4367 #ifdef CONFIG_IEEE80211R
4368 if (category == WLAN_ACTION_FT) {
4369 ft_rx_action(wpa_s, payload, plen);
4370 return;
4371 }
4372 #endif /* CONFIG_IEEE80211R */
4373
4374 #ifdef CONFIG_SME
4375 if (category == WLAN_ACTION_SA_QUERY) {
4376 sme_sa_query_rx(wpa_s, mgmt->da, mgmt->sa, payload, plen);
4377 return;
4378 }
4379 #endif /* CONFIG_SME */
4380
4381 #ifdef CONFIG_WNM
4382 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
4383 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
4384 return;
4385 }
4386 #endif /* CONFIG_WNM */
4387
4388 #ifdef CONFIG_GAS
4389 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
4390 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
4391 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
4392 mgmt->u.action.category,
4393 payload, plen, freq) == 0)
4394 return;
4395 #endif /* CONFIG_GAS */
4396
4397 #ifdef CONFIG_GAS_SERVER
4398 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
4399 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
4400 gas_server_rx(wpa_s->gas_server, mgmt->da, mgmt->sa, mgmt->bssid,
4401 mgmt->u.action.category,
4402 payload, plen, freq) == 0)
4403 return;
4404 #endif /* CONFIG_GAS_SERVER */
4405
4406 #ifdef CONFIG_TDLS
4407 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
4408 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
4409 wpa_dbg(wpa_s, MSG_DEBUG,
4410 "TDLS: Received Discovery Response from " MACSTR,
4411 MAC2STR(mgmt->sa));
4412 return;
4413 }
4414 #endif /* CONFIG_TDLS */
4415
4416 #ifdef CONFIG_INTERWORKING
4417 if (category == WLAN_ACTION_QOS && plen >= 1 &&
4418 payload[0] == QOS_QOS_MAP_CONFIG) {
4419 const u8 *pos = payload + 1;
4420 size_t qlen = plen - 1;
4421 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
4422 MACSTR, MAC2STR(mgmt->sa));
4423 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
4424 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
4425 pos[1] <= qlen - 2 && pos[1] >= 16)
4426 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
4427 return;
4428 }
4429 #endif /* CONFIG_INTERWORKING */
4430
4431 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4432 payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
4433 wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
4434 mgmt->da,
4435 payload + 1,
4436 plen - 1);
4437 return;
4438 }
4439
4440 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4441 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
4442 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
4443 return;
4444 }
4445
4446 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
4447 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
4448 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
4449 payload + 1, plen - 1,
4450 rssi);
4451 return;
4452 }
4453
4454 #ifdef CONFIG_FST
4455 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
4456 fst_rx_action(wpa_s->fst, mgmt, len);
4457 return;
4458 }
4459 #endif /* CONFIG_FST */
4460
4461 #ifdef CONFIG_DPP
4462 if (category == WLAN_ACTION_PUBLIC && plen >= 5 &&
4463 payload[0] == WLAN_PA_VENDOR_SPECIFIC &&
4464 WPA_GET_BE24(&payload[1]) == OUI_WFA &&
4465 payload[4] == DPP_OUI_TYPE) {
4466 payload++;
4467 plen--;
4468 wpas_dpp_rx_action(wpa_s, mgmt->sa, payload, plen, freq);
4469 return;
4470 }
4471 #endif /* CONFIG_DPP */
4472
4473 if (category == WLAN_ACTION_ROBUST_AV_STREAMING &&
4474 payload[0] == ROBUST_AV_SCS_RESP) {
4475 wpas_handle_robust_av_scs_recv_action(wpa_s, mgmt->sa,
4476 payload + 1, plen - 1);
4477 return;
4478 }
4479
4480 if (category == WLAN_ACTION_ROBUST_AV_STREAMING &&
4481 payload[0] == ROBUST_AV_MSCS_RESP) {
4482 wpas_handle_robust_av_recv_action(wpa_s, mgmt->sa,
4483 payload + 1, plen - 1);
4484 return;
4485 }
4486
4487 if (category == WLAN_ACTION_VENDOR_SPECIFIC_PROTECTED && plen > 4 &&
4488 WPA_GET_BE32(payload) == QM_ACTION_VENDOR_TYPE) {
4489 wpas_handle_qos_mgmt_recv_action(wpa_s, mgmt->sa,
4490 payload + 4, plen - 4);
4491 return;
4492 }
4493
4494 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
4495 category, payload, plen, freq);
4496 if (wpa_s->ifmsh)
4497 mesh_mpm_action_rx(wpa_s, mgmt, len);
4498 }
4499
4500
wpa_supplicant_notify_avoid_freq(struct wpa_supplicant * wpa_s,union wpa_event_data * event)4501 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
4502 union wpa_event_data *event)
4503 {
4504 struct wpa_freq_range_list *list;
4505 char *str = NULL;
4506
4507 list = &event->freq_range;
4508
4509 if (list->num)
4510 str = freq_range_list_str(list);
4511 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
4512 str ? str : "");
4513
4514 #ifdef CONFIG_P2P
4515 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
4516 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
4517 __func__);
4518 } else {
4519 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
4520
4521 /*
4522 * The update channel flow will also take care of moving a GO
4523 * from the unsafe frequency if needed.
4524 */
4525 wpas_p2p_update_channel_list(wpa_s,
4526 WPAS_P2P_CHANNEL_UPDATE_AVOID);
4527 }
4528 #endif /* CONFIG_P2P */
4529
4530 os_free(str);
4531 }
4532
4533
wpa_supplicant_event_port_authorized(struct wpa_supplicant * wpa_s)4534 static void wpa_supplicant_event_port_authorized(struct wpa_supplicant *wpa_s)
4535 {
4536 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
4537 wpa_supplicant_cancel_auth_timeout(wpa_s);
4538 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
4539 eapol_sm_notify_portValid(wpa_s->eapol, true);
4540 eapol_sm_notify_eap_success(wpa_s->eapol, true);
4541 wpa_s->drv_authorized_port = 1;
4542 }
4543 }
4544
4545
wpas_event_cac_ms(const struct wpa_supplicant * wpa_s,int freq)4546 static unsigned int wpas_event_cac_ms(const struct wpa_supplicant *wpa_s,
4547 int freq)
4548 {
4549 size_t i;
4550 int j;
4551
4552 for (i = 0; i < wpa_s->hw.num_modes; i++) {
4553 const struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i];
4554
4555 for (j = 0; j < mode->num_channels; j++) {
4556 const struct hostapd_channel_data *chan;
4557
4558 chan = &mode->channels[j];
4559 if (chan->freq == freq)
4560 return chan->dfs_cac_ms;
4561 }
4562 }
4563
4564 return 0;
4565 }
4566
4567
wpas_event_dfs_cac_started(struct wpa_supplicant * wpa_s,struct dfs_event * radar)4568 static void wpas_event_dfs_cac_started(struct wpa_supplicant *wpa_s,
4569 struct dfs_event *radar)
4570 {
4571 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4572 if (wpa_s->ap_iface || wpa_s->ifmsh) {
4573 wpas_ap_event_dfs_cac_started(wpa_s, radar);
4574 } else
4575 #endif /* NEED_AP_MLME && CONFIG_AP */
4576 {
4577 unsigned int cac_time = wpas_event_cac_ms(wpa_s, radar->freq);
4578
4579 cac_time /= 1000; /* convert from ms to sec */
4580 if (!cac_time)
4581 cac_time = 10 * 60; /* max timeout: 10 minutes */
4582
4583 /* Restart auth timeout: CAC time added to initial timeout */
4584 wpas_auth_timeout_restart(wpa_s, cac_time);
4585 }
4586 }
4587
4588
wpas_event_dfs_cac_finished(struct wpa_supplicant * wpa_s,struct dfs_event * radar)4589 static void wpas_event_dfs_cac_finished(struct wpa_supplicant *wpa_s,
4590 struct dfs_event *radar)
4591 {
4592 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4593 if (wpa_s->ap_iface || wpa_s->ifmsh) {
4594 wpas_ap_event_dfs_cac_finished(wpa_s, radar);
4595 } else
4596 #endif /* NEED_AP_MLME && CONFIG_AP */
4597 {
4598 /* Restart auth timeout with original value after CAC is
4599 * finished */
4600 wpas_auth_timeout_restart(wpa_s, 0);
4601 }
4602 }
4603
4604
wpas_event_dfs_cac_aborted(struct wpa_supplicant * wpa_s,struct dfs_event * radar)4605 static void wpas_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s,
4606 struct dfs_event *radar)
4607 {
4608 #if defined(NEED_AP_MLME) && defined(CONFIG_AP)
4609 if (wpa_s->ap_iface || wpa_s->ifmsh) {
4610 wpas_ap_event_dfs_cac_aborted(wpa_s, radar);
4611 } else
4612 #endif /* NEED_AP_MLME && CONFIG_AP */
4613 {
4614 /* Restart auth timeout with original value after CAC is
4615 * aborted */
4616 wpas_auth_timeout_restart(wpa_s, 0);
4617 }
4618 }
4619
4620
wpa_supplicant_event_assoc_auth(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4621 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
4622 union wpa_event_data *data)
4623 {
4624 wpa_dbg(wpa_s, MSG_DEBUG,
4625 "Connection authorized by device, previous state %d",
4626 wpa_s->wpa_state);
4627
4628 wpa_supplicant_event_port_authorized(wpa_s);
4629
4630 wpa_s->last_eapol_matches_bssid = 1;
4631
4632 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
4633 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
4634 data->assoc_info.ptk_kck_len,
4635 data->assoc_info.ptk_kek,
4636 data->assoc_info.ptk_kek_len);
4637 #ifdef CONFIG_FILS
4638 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
4639 struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
4640 const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss);
4641
4642 /* Update ERP next sequence number */
4643 eapol_sm_update_erp_next_seq_num(
4644 wpa_s->eapol, data->assoc_info.fils_erp_next_seq_num);
4645
4646 if (data->assoc_info.fils_pmk && data->assoc_info.fils_pmkid) {
4647 /* Add the new PMK and PMKID to the PMKSA cache */
4648 wpa_sm_pmksa_cache_add(wpa_s->wpa,
4649 data->assoc_info.fils_pmk,
4650 data->assoc_info.fils_pmk_len,
4651 data->assoc_info.fils_pmkid,
4652 wpa_s->bssid, fils_cache_id);
4653 } else if (data->assoc_info.fils_pmkid) {
4654 /* Update the current PMKSA used for this connection */
4655 pmksa_cache_set_current(wpa_s->wpa,
4656 data->assoc_info.fils_pmkid,
4657 NULL, NULL, 0, NULL, 0);
4658 }
4659 }
4660 #endif /* CONFIG_FILS */
4661 }
4662
4663
connect_fail_reason(enum sta_connect_fail_reason_codes code)4664 static const char * connect_fail_reason(enum sta_connect_fail_reason_codes code)
4665 {
4666 switch (code) {
4667 case STA_CONNECT_FAIL_REASON_UNSPECIFIED:
4668 return "";
4669 case STA_CONNECT_FAIL_REASON_NO_BSS_FOUND:
4670 return "no_bss_found";
4671 case STA_CONNECT_FAIL_REASON_AUTH_TX_FAIL:
4672 return "auth_tx_fail";
4673 case STA_CONNECT_FAIL_REASON_AUTH_NO_ACK_RECEIVED:
4674 return "auth_no_ack_received";
4675 case STA_CONNECT_FAIL_REASON_AUTH_NO_RESP_RECEIVED:
4676 return "auth_no_resp_received";
4677 case STA_CONNECT_FAIL_REASON_ASSOC_REQ_TX_FAIL:
4678 return "assoc_req_tx_fail";
4679 case STA_CONNECT_FAIL_REASON_ASSOC_NO_ACK_RECEIVED:
4680 return "assoc_no_ack_received";
4681 case STA_CONNECT_FAIL_REASON_ASSOC_NO_RESP_RECEIVED:
4682 return "assoc_no_resp_received";
4683 default:
4684 return "unknown_reason";
4685 }
4686 }
4687
4688
wpas_event_assoc_reject(struct wpa_supplicant * wpa_s,union wpa_event_data * data)4689 static void wpas_event_assoc_reject(struct wpa_supplicant *wpa_s,
4690 union wpa_event_data *data)
4691 {
4692 const u8 *bssid = data->assoc_reject.bssid;
4693 #ifdef CONFIG_MBO
4694 struct wpa_bss *reject_bss;
4695 #endif /* CONFIG_MBO */
4696
4697 if (!bssid || is_zero_ether_addr(bssid))
4698 bssid = wpa_s->pending_bssid;
4699 #ifdef CONFIG_MBO
4700 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
4701 reject_bss = wpa_s->current_bss;
4702 else
4703 reject_bss = wpa_bss_get_bssid(wpa_s, bssid);
4704 #endif /* CONFIG_MBO */
4705
4706 if (data->assoc_reject.bssid)
4707 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
4708 "bssid=" MACSTR " status_code=%u%s%s%s%s%s",
4709 MAC2STR(data->assoc_reject.bssid),
4710 data->assoc_reject.status_code,
4711 data->assoc_reject.timed_out ? " timeout" : "",
4712 data->assoc_reject.timeout_reason ? "=" : "",
4713 data->assoc_reject.timeout_reason ?
4714 data->assoc_reject.timeout_reason : "",
4715 data->assoc_reject.reason_code !=
4716 STA_CONNECT_FAIL_REASON_UNSPECIFIED ?
4717 " qca_driver_reason=" : "",
4718 connect_fail_reason(data->assoc_reject.reason_code));
4719 else
4720 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
4721 "status_code=%u%s%s%s%s%s",
4722 data->assoc_reject.status_code,
4723 data->assoc_reject.timed_out ? " timeout" : "",
4724 data->assoc_reject.timeout_reason ? "=" : "",
4725 data->assoc_reject.timeout_reason ?
4726 data->assoc_reject.timeout_reason : "",
4727 data->assoc_reject.reason_code !=
4728 STA_CONNECT_FAIL_REASON_UNSPECIFIED ?
4729 " qca_driver_reason=" : "",
4730 connect_fail_reason(data->assoc_reject.reason_code));
4731 wpa_s->assoc_status_code = data->assoc_reject.status_code;
4732 wpas_notify_assoc_status_code(wpa_s);
4733
4734 #ifdef CONFIG_OWE
4735 if (data->assoc_reject.status_code ==
4736 WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED &&
4737 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE &&
4738 wpa_s->current_ssid &&
4739 wpa_s->current_ssid->owe_group == 0 &&
4740 wpa_s->last_owe_group != 21) {
4741 struct wpa_ssid *ssid = wpa_s->current_ssid;
4742 struct wpa_bss *bss = wpa_s->current_bss;
4743
4744 if (!bss) {
4745 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
4746 if (!bss) {
4747 wpas_connection_failed(wpa_s, bssid);
4748 wpa_supplicant_mark_disassoc(wpa_s);
4749 return;
4750 }
4751 }
4752 wpa_printf(MSG_DEBUG, "OWE: Try next supported DH group");
4753 wpas_connect_work_done(wpa_s);
4754 wpa_supplicant_mark_disassoc(wpa_s);
4755 wpa_supplicant_connect(wpa_s, bss, ssid);
4756 return;
4757 }
4758 #endif /* CONFIG_OWE */
4759
4760 #ifdef CONFIG_DPP2
4761 /* Try to follow AP's PFS policy. WLAN_STATUS_ASSOC_DENIED_UNSPEC is
4762 * the status code defined in the DPP R2 tech spec.
4763 * WLAN_STATUS_AKMP_NOT_VALID is addressed in the same manner as an
4764 * interoperability workaround with older hostapd implementation. */
4765 if (DPP_VERSION > 1 && wpa_s->current_ssid &&
4766 (wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP ||
4767 ((wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_DPP) &&
4768 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP)) &&
4769 wpa_s->current_ssid->dpp_pfs == 0 &&
4770 (data->assoc_reject.status_code ==
4771 WLAN_STATUS_ASSOC_DENIED_UNSPEC ||
4772 data->assoc_reject.status_code == WLAN_STATUS_AKMP_NOT_VALID)) {
4773 struct wpa_ssid *ssid = wpa_s->current_ssid;
4774 struct wpa_bss *bss = wpa_s->current_bss;
4775
4776 wpa_s->current_ssid->dpp_pfs_fallback ^= 1;
4777 if (!bss)
4778 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
4779 if (!bss || wpa_s->dpp_pfs_fallback) {
4780 wpa_printf(MSG_DEBUG,
4781 "DPP: Updated PFS policy for next try");
4782 wpas_connection_failed(wpa_s, bssid);
4783 wpa_supplicant_mark_disassoc(wpa_s);
4784 return;
4785 }
4786 wpa_printf(MSG_DEBUG, "DPP: Try again with updated PFS policy");
4787 wpa_s->dpp_pfs_fallback = 1;
4788 wpas_connect_work_done(wpa_s);
4789 wpa_supplicant_mark_disassoc(wpa_s);
4790 wpa_supplicant_connect(wpa_s, bss, ssid);
4791 return;
4792 }
4793 #endif /* CONFIG_DPP2 */
4794
4795 #ifdef CONFIG_MBO
4796 if (data->assoc_reject.status_code ==
4797 WLAN_STATUS_DENIED_POOR_CHANNEL_CONDITIONS &&
4798 reject_bss && data->assoc_reject.resp_ies) {
4799 const u8 *rssi_rej;
4800
4801 rssi_rej = mbo_get_attr_from_ies(
4802 data->assoc_reject.resp_ies,
4803 data->assoc_reject.resp_ies_len,
4804 OCE_ATTR_ID_RSSI_BASED_ASSOC_REJECT);
4805 if (rssi_rej && rssi_rej[1] == 2) {
4806 wpa_printf(MSG_DEBUG,
4807 "OCE: RSSI-based association rejection from "
4808 MACSTR " (Delta RSSI: %u, Retry Delay: %u)",
4809 MAC2STR(reject_bss->bssid),
4810 rssi_rej[2], rssi_rej[3]);
4811 wpa_bss_tmp_disallow(wpa_s,
4812 reject_bss->bssid,
4813 rssi_rej[3],
4814 rssi_rej[2] + reject_bss->level);
4815 }
4816 }
4817 #endif /* CONFIG_MBO */
4818
4819 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
4820 sme_event_assoc_reject(wpa_s, data);
4821 return;
4822 }
4823
4824 /* Driver-based SME cases */
4825
4826 #ifdef CONFIG_SAE
4827 if (wpa_s->current_ssid &&
4828 wpa_key_mgmt_sae(wpa_s->current_ssid->key_mgmt) &&
4829 !data->assoc_reject.timed_out) {
4830 wpa_dbg(wpa_s, MSG_DEBUG, "SAE: Drop PMKSA cache entry");
4831 wpa_sm_aborted_cached(wpa_s->wpa);
4832 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
4833 }
4834 #endif /* CONFIG_SAE */
4835
4836 #ifdef CONFIG_DPP
4837 if (wpa_s->current_ssid &&
4838 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP &&
4839 !data->assoc_reject.timed_out) {
4840 wpa_dbg(wpa_s, MSG_DEBUG, "DPP: Drop PMKSA cache entry");
4841 wpa_sm_aborted_cached(wpa_s->wpa);
4842 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
4843 }
4844 #endif /* CONFIG_DPP */
4845
4846 #ifdef CONFIG_FILS
4847 /* Update ERP next sequence number */
4848 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) {
4849 fils_pmksa_cache_flush(wpa_s);
4850 eapol_sm_update_erp_next_seq_num(
4851 wpa_s->eapol,
4852 data->assoc_reject.fils_erp_next_seq_num);
4853 fils_connection_failure(wpa_s);
4854 }
4855 #endif /* CONFIG_FILS */
4856
4857 wpas_connection_failed(wpa_s, bssid);
4858 wpa_supplicant_mark_disassoc(wpa_s);
4859 }
4860
4861
wpas_event_unprot_beacon(struct wpa_supplicant * wpa_s,struct unprot_beacon * data)4862 static void wpas_event_unprot_beacon(struct wpa_supplicant *wpa_s,
4863 struct unprot_beacon *data)
4864 {
4865 struct wpabuf *buf;
4866 int res;
4867
4868 if (!data || wpa_s->wpa_state != WPA_COMPLETED ||
4869 os_memcmp(data->sa, wpa_s->bssid, ETH_ALEN) != 0)
4870 return;
4871 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_UNPROT_BEACON MACSTR,
4872 MAC2STR(data->sa));
4873
4874 buf = wpabuf_alloc(4);
4875 if (!buf)
4876 return;
4877
4878 wpabuf_put_u8(buf, WLAN_ACTION_WNM);
4879 wpabuf_put_u8(buf, WNM_NOTIFICATION_REQ);
4880 wpabuf_put_u8(buf, 1); /* Dialog Token */
4881 wpabuf_put_u8(buf, WNM_NOTIF_TYPE_BEACON_PROTECTION_FAILURE);
4882
4883 res = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
4884 wpa_s->own_addr, wpa_s->bssid,
4885 wpabuf_head(buf), wpabuf_len(buf), 0);
4886 if (res < 0)
4887 wpa_printf(MSG_DEBUG,
4888 "Failed to send WNM-Notification Request frame");
4889
4890 wpabuf_free(buf);
4891 }
4892
4893
wpa_supplicant_event(void * ctx,enum wpa_event_type event,union wpa_event_data * data)4894 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
4895 union wpa_event_data *data)
4896 {
4897 struct wpa_supplicant *wpa_s = ctx;
4898 int resched;
4899 struct os_reltime age, clear_at;
4900 #ifndef CONFIG_NO_STDOUT_DEBUG
4901 int level = MSG_DEBUG;
4902 #endif /* CONFIG_NO_STDOUT_DEBUG */
4903
4904 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
4905 event != EVENT_INTERFACE_ENABLED &&
4906 event != EVENT_INTERFACE_STATUS &&
4907 event != EVENT_SCAN_RESULTS &&
4908 event != EVENT_SCHED_SCAN_STOPPED) {
4909 wpa_dbg(wpa_s, MSG_DEBUG,
4910 "Ignore event %s (%d) while interface is disabled",
4911 event_to_string(event), event);
4912 return;
4913 }
4914
4915 #ifndef CONFIG_NO_STDOUT_DEBUG
4916 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
4917 const struct ieee80211_hdr *hdr;
4918 u16 fc;
4919 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
4920 fc = le_to_host16(hdr->frame_control);
4921 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
4922 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
4923 level = MSG_EXCESSIVE;
4924 }
4925
4926 wpa_dbg(wpa_s, level, "Event %s (%d) received",
4927 event_to_string(event), event);
4928 #endif /* CONFIG_NO_STDOUT_DEBUG */
4929
4930 switch (event) {
4931 case EVENT_AUTH:
4932 #ifdef CONFIG_FST
4933 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
4934 data->auth.ies_len))
4935 wpa_printf(MSG_DEBUG,
4936 "FST: MB IEs updated from auth IE");
4937 #endif /* CONFIG_FST */
4938 sme_event_auth(wpa_s, data);
4939 wpa_s->auth_status_code = data->auth.status_code;
4940 wpas_notify_auth_status_code(wpa_s);
4941 break;
4942 case EVENT_ASSOC:
4943 #ifdef CONFIG_TESTING_OPTIONS
4944 if (wpa_s->ignore_auth_resp) {
4945 wpa_printf(MSG_INFO,
4946 "EVENT_ASSOC - ignore_auth_resp active!");
4947 break;
4948 }
4949 if (wpa_s->testing_resend_assoc) {
4950 wpa_printf(MSG_INFO,
4951 "EVENT_DEAUTH - testing_resend_assoc");
4952 break;
4953 }
4954 #endif /* CONFIG_TESTING_OPTIONS */
4955 if (wpa_s->disconnected) {
4956 wpa_printf(MSG_INFO,
4957 "Ignore unexpected EVENT_ASSOC in disconnected state");
4958 break;
4959 }
4960 wpa_supplicant_event_assoc(wpa_s, data);
4961 wpa_s->assoc_status_code = WLAN_STATUS_SUCCESS;
4962 if (data &&
4963 (data->assoc_info.authorized ||
4964 (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
4965 wpa_fils_is_completed(wpa_s->wpa))))
4966 wpa_supplicant_event_assoc_auth(wpa_s, data);
4967 if (data) {
4968 wpa_msg(wpa_s, MSG_INFO,
4969 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
4970 data->assoc_info.subnet_status);
4971 }
4972 break;
4973 case EVENT_DISASSOC:
4974 wpas_event_disassoc(wpa_s,
4975 data ? &data->disassoc_info : NULL);
4976 break;
4977 case EVENT_DEAUTH:
4978 #ifdef CONFIG_TESTING_OPTIONS
4979 if (wpa_s->ignore_auth_resp) {
4980 wpa_printf(MSG_INFO,
4981 "EVENT_DEAUTH - ignore_auth_resp active!");
4982 break;
4983 }
4984 if (wpa_s->testing_resend_assoc) {
4985 wpa_printf(MSG_INFO,
4986 "EVENT_DEAUTH - testing_resend_assoc");
4987 break;
4988 }
4989 #endif /* CONFIG_TESTING_OPTIONS */
4990 wpas_event_deauth(wpa_s,
4991 data ? &data->deauth_info : NULL);
4992 break;
4993 case EVENT_MICHAEL_MIC_FAILURE:
4994 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
4995 break;
4996 #ifndef CONFIG_NO_SCAN_PROCESSING
4997 case EVENT_SCAN_STARTED:
4998 if (wpa_s->own_scan_requested ||
4999 (data && !data->scan_info.external_scan)) {
5000 struct os_reltime diff;
5001
5002 os_get_reltime(&wpa_s->scan_start_time);
5003 os_reltime_sub(&wpa_s->scan_start_time,
5004 &wpa_s->scan_trigger_time, &diff);
5005 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
5006 diff.sec, diff.usec);
5007 wpa_s->own_scan_requested = 0;
5008 wpa_s->own_scan_running = 1;
5009 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
5010 wpa_s->manual_scan_use_id) {
5011 wpa_msg_ctrl(wpa_s, MSG_INFO,
5012 WPA_EVENT_SCAN_STARTED "id=%u",
5013 wpa_s->manual_scan_id);
5014 } else {
5015 wpa_msg_ctrl(wpa_s, MSG_INFO,
5016 WPA_EVENT_SCAN_STARTED);
5017 }
5018 } else {
5019 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
5020 wpa_s->radio->external_scan_req_interface = wpa_s;
5021 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
5022 }
5023 break;
5024 case EVENT_SCAN_RESULTS:
5025 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
5026 wpa_s->scan_res_handler = NULL;
5027 wpa_s->own_scan_running = 0;
5028 wpa_s->radio->external_scan_req_interface = NULL;
5029 wpa_s->last_scan_req = NORMAL_SCAN_REQ;
5030 break;
5031 }
5032
5033 if (!(data && data->scan_info.external_scan) &&
5034 os_reltime_initialized(&wpa_s->scan_start_time)) {
5035 struct os_reltime now, diff;
5036 os_get_reltime(&now);
5037 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
5038 wpa_s->scan_start_time.sec = 0;
5039 wpa_s->scan_start_time.usec = 0;
5040 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
5041 diff.sec, diff.usec);
5042 }
5043 if (wpa_supplicant_event_scan_results(wpa_s, data))
5044 break; /* interface may have been removed */
5045 if (!(data && data->scan_info.external_scan))
5046 wpa_s->own_scan_running = 0;
5047 if (data && data->scan_info.nl_scan_event)
5048 wpa_s->radio->external_scan_req_interface = NULL;
5049 radio_work_check_next(wpa_s);
5050 break;
5051 #endif /* CONFIG_NO_SCAN_PROCESSING */
5052 case EVENT_ASSOCINFO:
5053 wpa_supplicant_event_associnfo(wpa_s, data);
5054 break;
5055 case EVENT_INTERFACE_STATUS:
5056 wpa_supplicant_event_interface_status(wpa_s, data);
5057 break;
5058 case EVENT_PMKID_CANDIDATE:
5059 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
5060 break;
5061 #ifdef CONFIG_TDLS
5062 case EVENT_TDLS:
5063 wpa_supplicant_event_tdls(wpa_s, data);
5064 break;
5065 #endif /* CONFIG_TDLS */
5066 #ifdef CONFIG_WNM
5067 case EVENT_WNM:
5068 wpa_supplicant_event_wnm(wpa_s, data);
5069 break;
5070 #endif /* CONFIG_WNM */
5071 #ifdef CONFIG_IEEE80211R
5072 case EVENT_FT_RESPONSE:
5073 wpa_supplicant_event_ft_response(wpa_s, data);
5074 break;
5075 #endif /* CONFIG_IEEE80211R */
5076 #ifdef CONFIG_IBSS_RSN
5077 case EVENT_IBSS_RSN_START:
5078 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
5079 break;
5080 #endif /* CONFIG_IBSS_RSN */
5081 case EVENT_ASSOC_REJECT:
5082 wpas_event_assoc_reject(wpa_s, data);
5083 break;
5084 case EVENT_AUTH_TIMED_OUT:
5085 /* It is possible to get this event from earlier connection */
5086 if (wpa_s->current_ssid &&
5087 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
5088 wpa_dbg(wpa_s, MSG_DEBUG,
5089 "Ignore AUTH_TIMED_OUT in mesh configuration");
5090 break;
5091 }
5092 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
5093 sme_event_auth_timed_out(wpa_s, data);
5094 break;
5095 case EVENT_ASSOC_TIMED_OUT:
5096 /* It is possible to get this event from earlier connection */
5097 if (wpa_s->current_ssid &&
5098 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
5099 wpa_dbg(wpa_s, MSG_DEBUG,
5100 "Ignore ASSOC_TIMED_OUT in mesh configuration");
5101 break;
5102 }
5103 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
5104 sme_event_assoc_timed_out(wpa_s, data);
5105 break;
5106 case EVENT_TX_STATUS:
5107 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
5108 " type=%d stype=%d",
5109 MAC2STR(data->tx_status.dst),
5110 data->tx_status.type, data->tx_status.stype);
5111 #ifdef CONFIG_PASN
5112 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
5113 data->tx_status.stype == WLAN_FC_STYPE_AUTH &&
5114 wpas_pasn_auth_tx_status(wpa_s, data->tx_status.data,
5115 data->tx_status.data_len,
5116 data->tx_status.ack) == 0)
5117 break;
5118 #endif /* CONFIG_PASN */
5119 #ifdef CONFIG_AP
5120 if (wpa_s->ap_iface == NULL) {
5121 #ifdef CONFIG_OFFCHANNEL
5122 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
5123 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
5124 offchannel_send_action_tx_status(
5125 wpa_s, data->tx_status.dst,
5126 data->tx_status.data,
5127 data->tx_status.data_len,
5128 data->tx_status.ack ?
5129 OFFCHANNEL_SEND_ACTION_SUCCESS :
5130 OFFCHANNEL_SEND_ACTION_NO_ACK);
5131 #endif /* CONFIG_OFFCHANNEL */
5132 break;
5133 }
5134 #endif /* CONFIG_AP */
5135 #ifdef CONFIG_OFFCHANNEL
5136 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
5137 MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
5138 /*
5139 * Catch TX status events for Action frames we sent via group
5140 * interface in GO mode, or via standalone AP interface.
5141 * Note, wpa_s->p2pdev will be the same as wpa_s->parent,
5142 * except when the primary interface is used as a GO interface
5143 * (for drivers which do not have group interface concurrency)
5144 */
5145 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
5146 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
5147 os_memcmp(wpa_s->p2pdev->pending_action_dst,
5148 data->tx_status.dst, ETH_ALEN) == 0) {
5149 offchannel_send_action_tx_status(
5150 wpa_s->p2pdev, 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 break;
5157 }
5158 #endif /* CONFIG_OFFCHANNEL */
5159 #ifdef CONFIG_AP
5160 switch (data->tx_status.type) {
5161 case WLAN_FC_TYPE_MGMT:
5162 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
5163 data->tx_status.data_len,
5164 data->tx_status.stype,
5165 data->tx_status.ack);
5166 break;
5167 case WLAN_FC_TYPE_DATA:
5168 ap_tx_status(wpa_s, data->tx_status.dst,
5169 data->tx_status.data,
5170 data->tx_status.data_len,
5171 data->tx_status.ack);
5172 break;
5173 }
5174 #endif /* CONFIG_AP */
5175 break;
5176 #ifdef CONFIG_AP
5177 case EVENT_EAPOL_TX_STATUS:
5178 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
5179 data->eapol_tx_status.data,
5180 data->eapol_tx_status.data_len,
5181 data->eapol_tx_status.ack);
5182 break;
5183 case EVENT_DRIVER_CLIENT_POLL_OK:
5184 ap_client_poll_ok(wpa_s, data->client_poll.addr);
5185 break;
5186 case EVENT_RX_FROM_UNKNOWN:
5187 if (wpa_s->ap_iface == NULL)
5188 break;
5189 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
5190 data->rx_from_unknown.wds);
5191 break;
5192 #endif /* CONFIG_AP */
5193
5194 case EVENT_CH_SWITCH_STARTED:
5195 case EVENT_CH_SWITCH:
5196 if (!data || !wpa_s->current_ssid)
5197 break;
5198
5199 wpa_msg(wpa_s, MSG_INFO,
5200 "%sfreq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
5201 event == EVENT_CH_SWITCH ? WPA_EVENT_CHANNEL_SWITCH :
5202 WPA_EVENT_CHANNEL_SWITCH_STARTED,
5203 data->ch_switch.freq,
5204 data->ch_switch.ht_enabled,
5205 data->ch_switch.ch_offset,
5206 channel_width_to_string(data->ch_switch.ch_width),
5207 data->ch_switch.cf1,
5208 data->ch_switch.cf2);
5209 if (event == EVENT_CH_SWITCH_STARTED)
5210 break;
5211
5212 wpa_s->assoc_freq = data->ch_switch.freq;
5213 wpa_s->current_ssid->frequency = data->ch_switch.freq;
5214 if (wpa_s->current_bss &&
5215 wpa_s->current_bss->freq != data->ch_switch.freq) {
5216 wpa_s->current_bss->freq = data->ch_switch.freq;
5217 notify_bss_changes(wpa_s, WPA_BSS_FREQ_CHANGED_FLAG,
5218 wpa_s->current_bss);
5219 }
5220
5221 #ifdef CONFIG_SME
5222 switch (data->ch_switch.ch_offset) {
5223 case 1:
5224 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_ABOVE;
5225 break;
5226 case -1:
5227 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_BELOW;
5228 break;
5229 default:
5230 wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_UNKNOWN;
5231 break;
5232 }
5233 #endif /* CONFIG_SME */
5234
5235 #ifdef CONFIG_AP
5236 if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
5237 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
5238 wpa_s->current_ssid->mode == WPAS_MODE_MESH ||
5239 wpa_s->current_ssid->mode ==
5240 WPAS_MODE_P2P_GROUP_FORMATION) {
5241 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
5242 data->ch_switch.ht_enabled,
5243 data->ch_switch.ch_offset,
5244 data->ch_switch.ch_width,
5245 data->ch_switch.cf1,
5246 data->ch_switch.cf2,
5247 1);
5248 }
5249 #endif /* CONFIG_AP */
5250
5251 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
5252 sme_event_ch_switch(wpa_s);
5253
5254 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
5255 wnm_clear_coloc_intf_reporting(wpa_s);
5256 break;
5257 #ifdef CONFIG_AP
5258 #ifdef NEED_AP_MLME
5259 case EVENT_DFS_RADAR_DETECTED:
5260 if (data)
5261 wpas_ap_event_dfs_radar_detected(wpa_s,
5262 &data->dfs_event);
5263 break;
5264 case EVENT_DFS_NOP_FINISHED:
5265 if (data)
5266 wpas_ap_event_dfs_cac_nop_finished(wpa_s,
5267 &data->dfs_event);
5268 break;
5269 #endif /* NEED_AP_MLME */
5270 #endif /* CONFIG_AP */
5271 case EVENT_DFS_CAC_STARTED:
5272 if (data)
5273 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
5274 break;
5275 case EVENT_DFS_CAC_FINISHED:
5276 if (data)
5277 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
5278 break;
5279 case EVENT_DFS_CAC_ABORTED:
5280 if (data)
5281 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
5282 break;
5283 case EVENT_RX_MGMT: {
5284 u16 fc, stype;
5285 const struct ieee80211_mgmt *mgmt;
5286
5287 #ifdef CONFIG_TESTING_OPTIONS
5288 if (wpa_s->ext_mgmt_frame_handling) {
5289 struct rx_mgmt *rx = &data->rx_mgmt;
5290 size_t hex_len = 2 * rx->frame_len + 1;
5291 char *hex = os_malloc(hex_len);
5292 if (hex) {
5293 wpa_snprintf_hex(hex, hex_len,
5294 rx->frame, rx->frame_len);
5295 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
5296 rx->freq, rx->datarate, rx->ssi_signal,
5297 hex);
5298 os_free(hex);
5299 }
5300 break;
5301 }
5302 #endif /* CONFIG_TESTING_OPTIONS */
5303
5304 mgmt = (const struct ieee80211_mgmt *)
5305 data->rx_mgmt.frame;
5306 fc = le_to_host16(mgmt->frame_control);
5307 stype = WLAN_FC_GET_STYPE(fc);
5308
5309 #ifdef CONFIG_AP
5310 if (wpa_s->ap_iface == NULL) {
5311 #endif /* CONFIG_AP */
5312 #ifdef CONFIG_P2P
5313 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
5314 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
5315 const u8 *src = mgmt->sa;
5316 const u8 *ie;
5317 size_t ie_len;
5318
5319 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
5320 ie_len = data->rx_mgmt.frame_len -
5321 IEEE80211_HDRLEN;
5322 wpas_p2p_probe_req_rx(
5323 wpa_s, src, mgmt->da,
5324 mgmt->bssid, ie, ie_len,
5325 data->rx_mgmt.freq,
5326 data->rx_mgmt.ssi_signal);
5327 break;
5328 }
5329 #endif /* CONFIG_P2P */
5330 #ifdef CONFIG_IBSS_RSN
5331 if (wpa_s->current_ssid &&
5332 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
5333 stype == WLAN_FC_STYPE_AUTH &&
5334 data->rx_mgmt.frame_len >= 30) {
5335 wpa_supplicant_event_ibss_auth(wpa_s, data);
5336 break;
5337 }
5338 #endif /* CONFIG_IBSS_RSN */
5339
5340 if (stype == WLAN_FC_STYPE_ACTION) {
5341 wpas_event_rx_mgmt_action(
5342 wpa_s, data->rx_mgmt.frame,
5343 data->rx_mgmt.frame_len,
5344 data->rx_mgmt.freq,
5345 data->rx_mgmt.ssi_signal);
5346 break;
5347 }
5348
5349 if (wpa_s->ifmsh) {
5350 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
5351 break;
5352 }
5353 #ifdef CONFIG_PASN
5354 if (stype == WLAN_FC_STYPE_AUTH &&
5355 wpas_pasn_auth_rx(wpa_s, mgmt,
5356 data->rx_mgmt.frame_len) != -2)
5357 break;
5358 #endif /* CONFIG_PASN */
5359
5360 #ifdef CONFIG_SAE
5361 if (stype == WLAN_FC_STYPE_AUTH &&
5362 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
5363 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE)) {
5364 sme_external_auth_mgmt_rx(
5365 wpa_s, data->rx_mgmt.frame,
5366 data->rx_mgmt.frame_len);
5367 break;
5368 }
5369 #endif /* CONFIG_SAE */
5370 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
5371 "management frame in non-AP mode");
5372 break;
5373 #ifdef CONFIG_AP
5374 }
5375
5376 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
5377 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
5378 const u8 *ie;
5379 size_t ie_len;
5380
5381 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
5382 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
5383
5384 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
5385 mgmt->bssid, ie, ie_len,
5386 data->rx_mgmt.ssi_signal);
5387 }
5388
5389 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
5390 #endif /* CONFIG_AP */
5391 break;
5392 }
5393 case EVENT_RX_PROBE_REQ:
5394 if (data->rx_probe_req.sa == NULL ||
5395 data->rx_probe_req.ie == NULL)
5396 break;
5397 #ifdef CONFIG_AP
5398 if (wpa_s->ap_iface) {
5399 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
5400 data->rx_probe_req.sa,
5401 data->rx_probe_req.da,
5402 data->rx_probe_req.bssid,
5403 data->rx_probe_req.ie,
5404 data->rx_probe_req.ie_len,
5405 data->rx_probe_req.ssi_signal);
5406 break;
5407 }
5408 #endif /* CONFIG_AP */
5409 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
5410 data->rx_probe_req.da,
5411 data->rx_probe_req.bssid,
5412 data->rx_probe_req.ie,
5413 data->rx_probe_req.ie_len,
5414 0,
5415 data->rx_probe_req.ssi_signal);
5416 break;
5417 case EVENT_REMAIN_ON_CHANNEL:
5418 #ifdef CONFIG_OFFCHANNEL
5419 offchannel_remain_on_channel_cb(
5420 wpa_s, data->remain_on_channel.freq,
5421 data->remain_on_channel.duration);
5422 #endif /* CONFIG_OFFCHANNEL */
5423 wpas_p2p_remain_on_channel_cb(
5424 wpa_s, data->remain_on_channel.freq,
5425 data->remain_on_channel.duration);
5426 #ifdef CONFIG_DPP
5427 wpas_dpp_remain_on_channel_cb(
5428 wpa_s, data->remain_on_channel.freq,
5429 data->remain_on_channel.duration);
5430 #endif /* CONFIG_DPP */
5431 break;
5432 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
5433 #ifdef CONFIG_OFFCHANNEL
5434 offchannel_cancel_remain_on_channel_cb(
5435 wpa_s, data->remain_on_channel.freq);
5436 #endif /* CONFIG_OFFCHANNEL */
5437 wpas_p2p_cancel_remain_on_channel_cb(
5438 wpa_s, data->remain_on_channel.freq);
5439 #ifdef CONFIG_DPP
5440 wpas_dpp_cancel_remain_on_channel_cb(
5441 wpa_s, data->remain_on_channel.freq);
5442 #endif /* CONFIG_DPP */
5443 break;
5444 case EVENT_EAPOL_RX:
5445 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
5446 data->eapol_rx.data,
5447 data->eapol_rx.data_len);
5448 break;
5449 case EVENT_SIGNAL_CHANGE:
5450 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
5451 "above=%d signal=%d noise=%d txrate=%d",
5452 data->signal_change.above_threshold,
5453 data->signal_change.current_signal,
5454 data->signal_change.current_noise,
5455 data->signal_change.current_txrate);
5456 wpa_bss_update_level(wpa_s->current_bss,
5457 data->signal_change.current_signal);
5458 bgscan_notify_signal_change(
5459 wpa_s, data->signal_change.above_threshold,
5460 data->signal_change.current_signal,
5461 data->signal_change.current_noise,
5462 data->signal_change.current_txrate);
5463 break;
5464 case EVENT_INTERFACE_MAC_CHANGED:
5465 wpa_supplicant_update_mac_addr(wpa_s);
5466 wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
5467 break;
5468 case EVENT_INTERFACE_ENABLED:
5469 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
5470 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
5471 u8 addr[ETH_ALEN];
5472
5473 eloop_cancel_timeout(wpas_clear_disabled_interface,
5474 wpa_s, NULL);
5475 os_memcpy(addr, wpa_s->own_addr, ETH_ALEN);
5476 wpa_supplicant_update_mac_addr(wpa_s);
5477 if (os_memcmp(addr, wpa_s->own_addr, ETH_ALEN) != 0)
5478 wpa_sm_pmksa_cache_flush(wpa_s->wpa, NULL);
5479 else
5480 wpa_sm_pmksa_cache_reconfig(wpa_s->wpa);
5481 wpa_supplicant_set_default_scan_ies(wpa_s);
5482 if (wpa_s->p2p_mgmt) {
5483 wpa_supplicant_set_state(wpa_s,
5484 WPA_DISCONNECTED);
5485 break;
5486 }
5487
5488 #ifdef CONFIG_AP
5489 if (!wpa_s->ap_iface) {
5490 wpa_supplicant_set_state(wpa_s,
5491 WPA_DISCONNECTED);
5492 wpa_s->scan_req = NORMAL_SCAN_REQ;
5493 wpa_supplicant_req_scan(wpa_s, 0, 0);
5494 } else
5495 wpa_supplicant_set_state(wpa_s,
5496 WPA_COMPLETED);
5497 #else /* CONFIG_AP */
5498 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
5499 wpa_supplicant_req_scan(wpa_s, 0, 0);
5500 #endif /* CONFIG_AP */
5501 }
5502 break;
5503 case EVENT_INTERFACE_DISABLED:
5504 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
5505 #ifdef CONFIG_P2P
5506 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
5507 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
5508 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
5509 /*
5510 * Mark interface disabled if this happens to end up not
5511 * being removed as a separate P2P group interface.
5512 */
5513 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
5514 /*
5515 * The interface was externally disabled. Remove
5516 * it assuming an external entity will start a
5517 * new session if needed.
5518 */
5519 if (wpa_s->current_ssid &&
5520 wpa_s->current_ssid->p2p_group)
5521 wpas_p2p_interface_unavailable(wpa_s);
5522 else
5523 wpas_p2p_disconnect(wpa_s);
5524 /*
5525 * wpa_s instance may have been freed, so must not use
5526 * it here anymore.
5527 */
5528 break;
5529 }
5530 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
5531 p2p_in_progress(wpa_s->global->p2p) > 1) {
5532 /* This radio work will be cancelled, so clear P2P
5533 * state as well.
5534 */
5535 p2p_stop_find(wpa_s->global->p2p);
5536 }
5537 #endif /* CONFIG_P2P */
5538
5539 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
5540 /*
5541 * Indicate disconnection to keep ctrl_iface events
5542 * consistent.
5543 */
5544 wpa_supplicant_event_disassoc(
5545 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
5546 }
5547 wpa_supplicant_mark_disassoc(wpa_s);
5548 os_reltime_age(&wpa_s->last_scan, &age);
5549 if (age.sec >= wpa_s->conf->scan_res_valid_for_connect) {
5550 clear_at.sec = wpa_s->conf->scan_res_valid_for_connect;
5551 clear_at.usec = 0;
5552 } else {
5553 struct os_reltime tmp;
5554
5555 tmp.sec = wpa_s->conf->scan_res_valid_for_connect;
5556 tmp.usec = 0;
5557 os_reltime_sub(&tmp, &age, &clear_at);
5558 }
5559 eloop_register_timeout(clear_at.sec, clear_at.usec,
5560 wpas_clear_disabled_interface,
5561 wpa_s, NULL);
5562 radio_remove_works(wpa_s, NULL, 0);
5563
5564 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
5565 break;
5566 case EVENT_CHANNEL_LIST_CHANGED:
5567 wpa_supplicant_update_channel_list(
5568 wpa_s, &data->channel_list_changed);
5569 break;
5570 case EVENT_INTERFACE_UNAVAILABLE:
5571 wpas_p2p_interface_unavailable(wpa_s);
5572 break;
5573 case EVENT_BEST_CHANNEL:
5574 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
5575 "(%d %d %d)",
5576 data->best_chan.freq_24, data->best_chan.freq_5,
5577 data->best_chan.freq_overall);
5578 wpa_s->best_24_freq = data->best_chan.freq_24;
5579 wpa_s->best_5_freq = data->best_chan.freq_5;
5580 wpa_s->best_overall_freq = data->best_chan.freq_overall;
5581 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
5582 data->best_chan.freq_5,
5583 data->best_chan.freq_overall);
5584 break;
5585 case EVENT_UNPROT_DEAUTH:
5586 wpa_supplicant_event_unprot_deauth(wpa_s,
5587 &data->unprot_deauth);
5588 break;
5589 case EVENT_UNPROT_DISASSOC:
5590 wpa_supplicant_event_unprot_disassoc(wpa_s,
5591 &data->unprot_disassoc);
5592 break;
5593 case EVENT_STATION_LOW_ACK:
5594 #ifdef CONFIG_AP
5595 if (wpa_s->ap_iface && data)
5596 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
5597 data->low_ack.addr);
5598 #endif /* CONFIG_AP */
5599 #ifdef CONFIG_TDLS
5600 if (data)
5601 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
5602 data->low_ack.addr);
5603 #endif /* CONFIG_TDLS */
5604 break;
5605 case EVENT_IBSS_PEER_LOST:
5606 #ifdef CONFIG_IBSS_RSN
5607 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
5608 #endif /* CONFIG_IBSS_RSN */
5609 break;
5610 case EVENT_DRIVER_GTK_REKEY:
5611 if (os_memcmp(data->driver_gtk_rekey.bssid,
5612 wpa_s->bssid, ETH_ALEN))
5613 break;
5614 if (!wpa_s->wpa)
5615 break;
5616 wpa_sm_update_replay_ctr(wpa_s->wpa,
5617 data->driver_gtk_rekey.replay_ctr);
5618 break;
5619 case EVENT_SCHED_SCAN_STOPPED:
5620 wpa_s->sched_scanning = 0;
5621 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
5622 wpa_supplicant_notify_scanning(wpa_s, 0);
5623
5624 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
5625 break;
5626
5627 /*
5628 * If the driver stopped scanning without being requested to,
5629 * request a new scan to continue scanning for networks.
5630 */
5631 if (!wpa_s->sched_scan_stop_req &&
5632 wpa_s->wpa_state == WPA_SCANNING) {
5633 wpa_dbg(wpa_s, MSG_DEBUG,
5634 "Restart scanning after unexpected sched_scan stop event");
5635 wpa_supplicant_req_scan(wpa_s, 1, 0);
5636 break;
5637 }
5638
5639 wpa_s->sched_scan_stop_req = 0;
5640
5641 /*
5642 * Start a new sched scan to continue searching for more SSIDs
5643 * either if timed out or PNO schedule scan is pending.
5644 */
5645 if (wpa_s->sched_scan_timed_out) {
5646 wpa_supplicant_req_sched_scan(wpa_s);
5647 } else if (wpa_s->pno_sched_pending) {
5648 wpa_s->pno_sched_pending = 0;
5649 wpas_start_pno(wpa_s);
5650 } else if (resched) {
5651 wpa_supplicant_req_scan(wpa_s, 0, 0);
5652 }
5653
5654 break;
5655 case EVENT_WPS_BUTTON_PUSHED:
5656 #ifdef CONFIG_WPS
5657 wpas_wps_start_pbc(wpa_s, NULL, 0, 0);
5658 #endif /* CONFIG_WPS */
5659 break;
5660 case EVENT_AVOID_FREQUENCIES:
5661 wpa_supplicant_notify_avoid_freq(wpa_s, data);
5662 break;
5663 case EVENT_CONNECT_FAILED_REASON:
5664 #ifdef CONFIG_AP
5665 if (!wpa_s->ap_iface || !data)
5666 break;
5667 hostapd_event_connect_failed_reason(
5668 wpa_s->ap_iface->bss[0],
5669 data->connect_failed_reason.addr,
5670 data->connect_failed_reason.code);
5671 #endif /* CONFIG_AP */
5672 break;
5673 case EVENT_NEW_PEER_CANDIDATE:
5674 #ifdef CONFIG_MESH
5675 if (!wpa_s->ifmsh || !data)
5676 break;
5677 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
5678 data->mesh_peer.ies,
5679 data->mesh_peer.ie_len);
5680 #endif /* CONFIG_MESH */
5681 break;
5682 case EVENT_SURVEY:
5683 #ifdef CONFIG_AP
5684 if (!wpa_s->ap_iface)
5685 break;
5686 hostapd_event_get_survey(wpa_s->ap_iface,
5687 &data->survey_results);
5688 #endif /* CONFIG_AP */
5689 break;
5690 case EVENT_ACS_CHANNEL_SELECTED:
5691 #ifdef CONFIG_AP
5692 #ifdef CONFIG_ACS
5693 if (!wpa_s->ap_iface)
5694 break;
5695 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
5696 &data->acs_selected_channels);
5697 #endif /* CONFIG_ACS */
5698 #endif /* CONFIG_AP */
5699 break;
5700 case EVENT_P2P_LO_STOP:
5701 #ifdef CONFIG_P2P
5702 wpa_s->p2p_lo_started = 0;
5703 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP
5704 P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d",
5705 data->p2p_lo_stop.reason_code);
5706 #endif /* CONFIG_P2P */
5707 break;
5708 case EVENT_BEACON_LOSS:
5709 if (!wpa_s->current_bss || !wpa_s->current_ssid)
5710 break;
5711 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_BEACON_LOSS);
5712 bgscan_notify_beacon_loss(wpa_s);
5713 break;
5714 case EVENT_EXTERNAL_AUTH:
5715 #ifdef CONFIG_SAE
5716 if (!wpa_s->current_ssid) {
5717 wpa_printf(MSG_DEBUG, "SAE: current_ssid is NULL");
5718 break;
5719 }
5720 sme_external_auth_trigger(wpa_s, data);
5721 #endif /* CONFIG_SAE */
5722 break;
5723 case EVENT_PORT_AUTHORIZED:
5724 wpa_supplicant_event_port_authorized(wpa_s);
5725 break;
5726 case EVENT_STATION_OPMODE_CHANGED:
5727 #ifdef CONFIG_AP
5728 if (!wpa_s->ap_iface || !data)
5729 break;
5730
5731 hostapd_event_sta_opmode_changed(wpa_s->ap_iface->bss[0],
5732 data->sta_opmode.addr,
5733 data->sta_opmode.smps_mode,
5734 data->sta_opmode.chan_width,
5735 data->sta_opmode.rx_nss);
5736 #endif /* CONFIG_AP */
5737 break;
5738 case EVENT_UNPROT_BEACON:
5739 wpas_event_unprot_beacon(wpa_s, &data->unprot_beacon);
5740 break;
5741 default:
5742 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
5743 break;
5744 }
5745 }
5746
5747
wpa_supplicant_event_global(void * ctx,enum wpa_event_type event,union wpa_event_data * data)5748 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
5749 union wpa_event_data *data)
5750 {
5751 struct wpa_supplicant *wpa_s;
5752
5753 if (event != EVENT_INTERFACE_STATUS)
5754 return;
5755
5756 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
5757 if (wpa_s && wpa_s->driver->get_ifindex) {
5758 unsigned int ifindex;
5759
5760 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
5761 if (ifindex != data->interface_status.ifindex) {
5762 wpa_dbg(wpa_s, MSG_DEBUG,
5763 "interface status ifindex %d mismatch (%d)",
5764 ifindex, data->interface_status.ifindex);
5765 return;
5766 }
5767 }
5768 #ifdef CONFIG_MATCH_IFACE
5769 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
5770 struct wpa_interface *wpa_i;
5771
5772 wpa_i = wpa_supplicant_match_iface(
5773 ctx, data->interface_status.ifname);
5774 if (!wpa_i)
5775 return;
5776 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
5777 os_free(wpa_i);
5778 }
5779 #endif /* CONFIG_MATCH_IFACE */
5780
5781 if (wpa_s)
5782 wpa_supplicant_event(wpa_s, event, data);
5783 }
5784