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mesh: Join an existing MBSS instead of creating a new one
[thirdparty/hostap.git] / wpa_supplicant / events.c
1 /*
2 * WPA Supplicant - Driver event processing
3 * Copyright (c) 2003-2015, 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 "crypto/random.h"
32 #include "blacklist.h"
33 #include "wpas_glue.h"
34 #include "wps_supplicant.h"
35 #include "ibss_rsn.h"
36 #include "sme.h"
37 #include "gas_query.h"
38 #include "p2p_supplicant.h"
39 #include "bgscan.h"
40 #include "autoscan.h"
41 #include "ap.h"
42 #include "bss.h"
43 #include "scan.h"
44 #include "offchannel.h"
45 #include "interworking.h"
46 #include "mesh.h"
47 #include "mesh_mpm.h"
48 #include "wmm_ac.h"
49
50
51 #ifndef CONFIG_NO_SCAN_PROCESSING
52 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
53 int new_scan, int own_request);
54 #endif /* CONFIG_NO_SCAN_PROCESSING */
55
56
57 static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
58 struct wpa_ssid *ssid)
59 {
60 struct os_reltime now;
61
62 if (ssid == NULL || ssid->disabled_until.sec == 0)
63 return 0;
64
65 os_get_reltime(&now);
66 if (ssid->disabled_until.sec > now.sec)
67 return ssid->disabled_until.sec - now.sec;
68
69 wpas_clear_temp_disabled(wpa_s, ssid, 0);
70
71 return 0;
72 }
73
74
75 #ifndef CONFIG_NO_SCAN_PROCESSING
76 /**
77 * wpas_reenabled_network_time - Time until first network is re-enabled
78 * @wpa_s: Pointer to wpa_supplicant data
79 * Returns: If all enabled networks are temporarily disabled, returns the time
80 * (in sec) until the first network is re-enabled. Otherwise returns 0.
81 *
82 * This function is used in case all enabled networks are temporarily disabled,
83 * in which case it returns the time (in sec) that the first network will be
84 * re-enabled. The function assumes that at least one network is enabled.
85 */
86 static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
87 {
88 struct wpa_ssid *ssid;
89 int disabled_for, res = 0;
90
91 #ifdef CONFIG_INTERWORKING
92 if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
93 wpa_s->conf->cred)
94 return 0;
95 #endif /* CONFIG_INTERWORKING */
96
97 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
98 if (ssid->disabled)
99 continue;
100
101 disabled_for = wpas_temp_disabled(wpa_s, ssid);
102 if (!disabled_for)
103 return 0;
104
105 if (!res || disabled_for < res)
106 res = disabled_for;
107 }
108
109 return res;
110 }
111 #endif /* CONFIG_NO_SCAN_PROCESSING */
112
113
114 void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
115 {
116 struct wpa_supplicant *wpa_s = eloop_ctx;
117
118 if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
119 return;
120
121 wpa_dbg(wpa_s, MSG_DEBUG,
122 "Try to associate due to network getting re-enabled");
123 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
124 wpa_supplicant_cancel_sched_scan(wpa_s);
125 wpa_supplicant_req_scan(wpa_s, 0, 0);
126 }
127 }
128
129
130 static struct wpa_bss * wpa_supplicant_get_new_bss(
131 struct wpa_supplicant *wpa_s, const u8 *bssid)
132 {
133 struct wpa_bss *bss = NULL;
134 struct wpa_ssid *ssid = wpa_s->current_ssid;
135
136 if (ssid->ssid_len > 0)
137 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
138 if (!bss)
139 bss = wpa_bss_get_bssid(wpa_s, bssid);
140
141 return bss;
142 }
143
144
145 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
146 {
147 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
148
149 if (!bss) {
150 wpa_supplicant_update_scan_results(wpa_s);
151
152 /* Get the BSS from the new scan results */
153 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
154 }
155
156 if (bss)
157 wpa_s->current_bss = bss;
158 }
159
160
161 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
162 {
163 struct wpa_ssid *ssid, *old_ssid;
164 u8 drv_ssid[SSID_MAX_LEN];
165 size_t drv_ssid_len;
166 int res;
167
168 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
169 wpa_supplicant_update_current_bss(wpa_s);
170
171 if (wpa_s->current_ssid->ssid_len == 0)
172 return 0; /* current profile still in use */
173 res = wpa_drv_get_ssid(wpa_s, drv_ssid);
174 if (res < 0) {
175 wpa_msg(wpa_s, MSG_INFO,
176 "Failed to read SSID from driver");
177 return 0; /* try to use current profile */
178 }
179 drv_ssid_len = res;
180
181 if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
182 os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
183 drv_ssid_len) == 0)
184 return 0; /* current profile still in use */
185
186 wpa_msg(wpa_s, MSG_DEBUG,
187 "Driver-initiated BSS selection changed the SSID to %s",
188 wpa_ssid_txt(drv_ssid, drv_ssid_len));
189 /* continue selecting a new network profile */
190 }
191
192 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
193 "information");
194 ssid = wpa_supplicant_get_ssid(wpa_s);
195 if (ssid == NULL) {
196 wpa_msg(wpa_s, MSG_INFO,
197 "No network configuration found for the current AP");
198 return -1;
199 }
200
201 if (wpas_network_disabled(wpa_s, ssid)) {
202 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
203 return -1;
204 }
205
206 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
207 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
208 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
209 return -1;
210 }
211
212 res = wpas_temp_disabled(wpa_s, ssid);
213 if (res > 0) {
214 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
215 "disabled for %d second(s)", res);
216 return -1;
217 }
218
219 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
220 "current AP");
221 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
222 u8 wpa_ie[80];
223 size_t wpa_ie_len = sizeof(wpa_ie);
224 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
225 wpa_ie, &wpa_ie_len) < 0)
226 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
227 } else {
228 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
229 }
230
231 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
232 eapol_sm_invalidate_cached_session(wpa_s->eapol);
233 old_ssid = wpa_s->current_ssid;
234 wpa_s->current_ssid = ssid;
235
236 wpa_supplicant_update_current_bss(wpa_s);
237
238 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
239 wpa_supplicant_initiate_eapol(wpa_s);
240 if (old_ssid != wpa_s->current_ssid)
241 wpas_notify_network_changed(wpa_s);
242
243 return 0;
244 }
245
246
247 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
248 {
249 struct wpa_supplicant *wpa_s = eloop_ctx;
250
251 if (wpa_s->countermeasures) {
252 wpa_s->countermeasures = 0;
253 wpa_drv_set_countermeasures(wpa_s, 0);
254 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
255
256 /*
257 * It is possible that the device is sched scanning, which means
258 * that a connection attempt will be done only when we receive
259 * scan results. However, in this case, it would be preferable
260 * to scan and connect immediately, so cancel the sched_scan and
261 * issue a regular scan flow.
262 */
263 wpa_supplicant_cancel_sched_scan(wpa_s);
264 wpa_supplicant_req_scan(wpa_s, 0, 0);
265 }
266 }
267
268
269 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
270 {
271 int bssid_changed;
272
273 wnm_bss_keep_alive_deinit(wpa_s);
274
275 #ifdef CONFIG_IBSS_RSN
276 ibss_rsn_deinit(wpa_s->ibss_rsn);
277 wpa_s->ibss_rsn = NULL;
278 #endif /* CONFIG_IBSS_RSN */
279
280 #ifdef CONFIG_AP
281 wpa_supplicant_ap_deinit(wpa_s);
282 #endif /* CONFIG_AP */
283
284 #ifdef CONFIG_HS20
285 /* Clear possibly configured frame filters */
286 wpa_drv_configure_frame_filters(wpa_s, 0);
287 #endif /* CONFIG_HS20 */
288
289 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
290 return;
291
292 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
293 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
294 os_memset(wpa_s->bssid, 0, ETH_ALEN);
295 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
296 sme_clear_on_disassoc(wpa_s);
297 wpa_s->current_bss = NULL;
298 wpa_s->assoc_freq = 0;
299
300 if (bssid_changed)
301 wpas_notify_bssid_changed(wpa_s);
302
303 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
304 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
305 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
306 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
307 wpa_s->ap_ies_from_associnfo = 0;
308 wpa_s->current_ssid = NULL;
309 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
310 wpa_s->key_mgmt = 0;
311
312 wpas_rrm_reset(wpa_s);
313 wpa_s->wnmsleep_used = 0;
314 }
315
316
317 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
318 {
319 struct wpa_ie_data ie;
320 int pmksa_set = -1;
321 size_t i;
322
323 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
324 ie.pmkid == NULL)
325 return;
326
327 for (i = 0; i < ie.num_pmkid; i++) {
328 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
329 ie.pmkid + i * PMKID_LEN,
330 NULL, NULL, 0);
331 if (pmksa_set == 0) {
332 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
333 break;
334 }
335 }
336
337 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
338 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
339 }
340
341
342 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
343 union wpa_event_data *data)
344 {
345 if (data == NULL) {
346 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
347 "event");
348 return;
349 }
350 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
351 " index=%d preauth=%d",
352 MAC2STR(data->pmkid_candidate.bssid),
353 data->pmkid_candidate.index,
354 data->pmkid_candidate.preauth);
355
356 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
357 data->pmkid_candidate.index,
358 data->pmkid_candidate.preauth);
359 }
360
361
362 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
363 {
364 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
365 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
366 return 0;
367
368 #ifdef IEEE8021X_EAPOL
369 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
370 wpa_s->current_ssid &&
371 !(wpa_s->current_ssid->eapol_flags &
372 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
373 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
374 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
375 * plaintext or static WEP keys). */
376 return 0;
377 }
378 #endif /* IEEE8021X_EAPOL */
379
380 return 1;
381 }
382
383
384 /**
385 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
386 * @wpa_s: pointer to wpa_supplicant data
387 * @ssid: Configuration data for the network
388 * Returns: 0 on success, -1 on failure
389 *
390 * This function is called when starting authentication with a network that is
391 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
392 */
393 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
394 struct wpa_ssid *ssid)
395 {
396 #ifdef IEEE8021X_EAPOL
397 #ifdef PCSC_FUNCS
398 int aka = 0, sim = 0;
399
400 if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
401 wpa_s->scard != NULL || wpa_s->conf->external_sim)
402 return 0;
403
404 if (ssid == NULL || ssid->eap.eap_methods == NULL) {
405 sim = 1;
406 aka = 1;
407 } else {
408 struct eap_method_type *eap = ssid->eap.eap_methods;
409 while (eap->vendor != EAP_VENDOR_IETF ||
410 eap->method != EAP_TYPE_NONE) {
411 if (eap->vendor == EAP_VENDOR_IETF) {
412 if (eap->method == EAP_TYPE_SIM)
413 sim = 1;
414 else if (eap->method == EAP_TYPE_AKA ||
415 eap->method == EAP_TYPE_AKA_PRIME)
416 aka = 1;
417 }
418 eap++;
419 }
420 }
421
422 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
423 sim = 0;
424 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
425 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
426 NULL)
427 aka = 0;
428
429 if (!sim && !aka) {
430 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
431 "use SIM, but neither EAP-SIM nor EAP-AKA are "
432 "enabled");
433 return 0;
434 }
435
436 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
437 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
438
439 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
440 if (wpa_s->scard == NULL) {
441 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
442 "(pcsc-lite)");
443 return -1;
444 }
445 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
446 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
447 #endif /* PCSC_FUNCS */
448 #endif /* IEEE8021X_EAPOL */
449
450 return 0;
451 }
452
453
454 #ifndef CONFIG_NO_SCAN_PROCESSING
455
456 static int has_wep_key(struct wpa_ssid *ssid)
457 {
458 int i;
459
460 for (i = 0; i < NUM_WEP_KEYS; i++) {
461 if (ssid->wep_key_len[i])
462 return 1;
463 }
464
465 return 0;
466 }
467
468
469 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
470 struct wpa_ssid *ssid)
471 {
472 int privacy = 0;
473
474 if (ssid->mixed_cell)
475 return 1;
476
477 #ifdef CONFIG_WPS
478 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
479 return 1;
480 #endif /* CONFIG_WPS */
481
482 if (has_wep_key(ssid))
483 privacy = 1;
484
485 #ifdef IEEE8021X_EAPOL
486 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
487 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
488 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
489 privacy = 1;
490 #endif /* IEEE8021X_EAPOL */
491
492 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
493 privacy = 1;
494
495 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
496 privacy = 1;
497
498 if (bss->caps & IEEE80211_CAP_PRIVACY)
499 return privacy;
500 return !privacy;
501 }
502
503
504 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
505 struct wpa_ssid *ssid,
506 struct wpa_bss *bss)
507 {
508 struct wpa_ie_data ie;
509 int proto_match = 0;
510 const u8 *rsn_ie, *wpa_ie;
511 int ret;
512 int wep_ok;
513
514 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
515 if (ret >= 0)
516 return ret;
517
518 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
519 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
520 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
521 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
522 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
523
524 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
525 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
526 proto_match++;
527
528 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
529 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
530 "failed");
531 break;
532 }
533
534 if (wep_ok &&
535 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
536 {
537 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
538 "in RSN IE");
539 return 1;
540 }
541
542 if (!(ie.proto & ssid->proto)) {
543 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
544 "mismatch");
545 break;
546 }
547
548 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
549 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
550 "cipher mismatch");
551 break;
552 }
553
554 if (!(ie.group_cipher & ssid->group_cipher)) {
555 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
556 "cipher mismatch");
557 break;
558 }
559
560 if (!(ie.key_mgmt & ssid->key_mgmt)) {
561 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
562 "mismatch");
563 break;
564 }
565
566 #ifdef CONFIG_IEEE80211W
567 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
568 wpas_get_ssid_pmf(wpa_s, ssid) ==
569 MGMT_FRAME_PROTECTION_REQUIRED) {
570 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
571 "frame protection");
572 break;
573 }
574 #endif /* CONFIG_IEEE80211W */
575 if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
576 wpas_get_ssid_pmf(wpa_s, ssid) ==
577 NO_MGMT_FRAME_PROTECTION) {
578 wpa_dbg(wpa_s, MSG_DEBUG,
579 " skip RSN IE - no mgmt frame protection enabled but AP requires it");
580 break;
581 }
582 #ifdef CONFIG_MBO
583 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
584 wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND) &&
585 wpas_get_ssid_pmf(wpa_s, ssid) !=
586 NO_MGMT_FRAME_PROTECTION) {
587 wpa_dbg(wpa_s, MSG_DEBUG,
588 " skip RSN IE - no mgmt frame protection enabled on MBO AP");
589 break;
590 }
591 #endif /* CONFIG_MBO */
592
593 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
594 return 1;
595 }
596
597 #ifdef CONFIG_IEEE80211W
598 if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED) {
599 wpa_dbg(wpa_s, MSG_DEBUG,
600 " skip - MFP Required but network not MFP Capable");
601 return 0;
602 }
603 #endif /* CONFIG_IEEE80211W */
604
605 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
606 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
607 proto_match++;
608
609 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
610 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
611 "failed");
612 break;
613 }
614
615 if (wep_ok &&
616 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
617 {
618 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
619 "in WPA IE");
620 return 1;
621 }
622
623 if (!(ie.proto & ssid->proto)) {
624 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
625 "mismatch");
626 break;
627 }
628
629 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
630 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
631 "cipher mismatch");
632 break;
633 }
634
635 if (!(ie.group_cipher & ssid->group_cipher)) {
636 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
637 "cipher mismatch");
638 break;
639 }
640
641 if (!(ie.key_mgmt & ssid->key_mgmt)) {
642 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
643 "mismatch");
644 break;
645 }
646
647 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
648 return 1;
649 }
650
651 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
652 !rsn_ie) {
653 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
654 return 1;
655 }
656
657 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
658 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
659 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
660 return 0;
661 }
662
663 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
664 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
665 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
666 return 1;
667 }
668
669 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
670 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
671 return 1;
672 }
673
674 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
675 "WPA/WPA2");
676
677 return 0;
678 }
679
680
681 static int freq_allowed(int *freqs, int freq)
682 {
683 int i;
684
685 if (freqs == NULL)
686 return 1;
687
688 for (i = 0; freqs[i]; i++)
689 if (freqs[i] == freq)
690 return 1;
691 return 0;
692 }
693
694
695 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
696 {
697 const struct hostapd_hw_modes *mode = NULL, *modes;
698 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
699 const u8 *rate_ie;
700 int i, j, k;
701
702 if (bss->freq == 0)
703 return 1; /* Cannot do matching without knowing band */
704
705 modes = wpa_s->hw.modes;
706 if (modes == NULL) {
707 /*
708 * The driver does not provide any additional information
709 * about the utilized hardware, so allow the connection attempt
710 * to continue.
711 */
712 return 1;
713 }
714
715 for (i = 0; i < wpa_s->hw.num_modes; i++) {
716 for (j = 0; j < modes[i].num_channels; j++) {
717 int freq = modes[i].channels[j].freq;
718 if (freq == bss->freq) {
719 if (mode &&
720 mode->mode == HOSTAPD_MODE_IEEE80211G)
721 break; /* do not allow 802.11b replace
722 * 802.11g */
723 mode = &modes[i];
724 break;
725 }
726 }
727 }
728
729 if (mode == NULL)
730 return 0;
731
732 for (i = 0; i < (int) sizeof(scan_ie); i++) {
733 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
734 if (rate_ie == NULL)
735 continue;
736
737 for (j = 2; j < rate_ie[1] + 2; j++) {
738 int flagged = !!(rate_ie[j] & 0x80);
739 int r = (rate_ie[j] & 0x7f) * 5;
740
741 /*
742 * IEEE Std 802.11n-2009 7.3.2.2:
743 * The new BSS Membership selector value is encoded
744 * like a legacy basic rate, but it is not a rate and
745 * only indicates if the BSS members are required to
746 * support the mandatory features of Clause 20 [HT PHY]
747 * in order to join the BSS.
748 */
749 if (flagged && ((rate_ie[j] & 0x7f) ==
750 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
751 if (!ht_supported(mode)) {
752 wpa_dbg(wpa_s, MSG_DEBUG,
753 " hardware does not support "
754 "HT PHY");
755 return 0;
756 }
757 continue;
758 }
759
760 /* There's also a VHT selector for 802.11ac */
761 if (flagged && ((rate_ie[j] & 0x7f) ==
762 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
763 if (!vht_supported(mode)) {
764 wpa_dbg(wpa_s, MSG_DEBUG,
765 " hardware does not support "
766 "VHT PHY");
767 return 0;
768 }
769 continue;
770 }
771
772 if (!flagged)
773 continue;
774
775 /* check for legacy basic rates */
776 for (k = 0; k < mode->num_rates; k++) {
777 if (mode->rates[k] == r)
778 break;
779 }
780 if (k == mode->num_rates) {
781 /*
782 * IEEE Std 802.11-2007 7.3.2.2 demands that in
783 * order to join a BSS all required rates
784 * have to be supported by the hardware.
785 */
786 wpa_dbg(wpa_s, MSG_DEBUG,
787 " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
788 r / 10, r % 10,
789 bss->freq, mode->mode, mode->num_rates);
790 return 0;
791 }
792 }
793 }
794
795 return 1;
796 }
797
798
799 /*
800 * Test whether BSS is in an ESS.
801 * This is done differently in DMG (60 GHz) and non-DMG bands
802 */
803 static int bss_is_ess(struct wpa_bss *bss)
804 {
805 if (bss_is_dmg(bss)) {
806 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
807 IEEE80211_CAP_DMG_AP;
808 }
809
810 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
811 IEEE80211_CAP_ESS);
812 }
813
814
815 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
816 {
817 size_t i;
818
819 for (i = 0; i < ETH_ALEN; i++) {
820 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
821 return 0;
822 }
823 return 1;
824 }
825
826
827 static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
828 {
829 size_t i;
830
831 for (i = 0; i < num; i++) {
832 const u8 *a = list + i * ETH_ALEN * 2;
833 const u8 *m = a + ETH_ALEN;
834
835 if (match_mac_mask(a, addr, m))
836 return 1;
837 }
838 return 0;
839 }
840
841
842 struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
843 int i, struct wpa_bss *bss,
844 struct wpa_ssid *group,
845 int only_first_ssid)
846 {
847 u8 wpa_ie_len, rsn_ie_len;
848 int wpa;
849 struct wpa_blacklist *e;
850 const u8 *ie;
851 struct wpa_ssid *ssid;
852 int osen;
853 #ifdef CONFIG_MBO
854 const u8 *assoc_disallow;
855 #endif /* CONFIG_MBO */
856
857 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
858 wpa_ie_len = ie ? ie[1] : 0;
859
860 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
861 rsn_ie_len = ie ? ie[1] : 0;
862
863 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
864 osen = ie != NULL;
865
866 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
867 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
868 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
869 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, bss->freq,
870 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "",
871 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
872 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ?
873 " p2p" : "",
874 osen ? " osen=1" : "");
875
876 e = wpa_blacklist_get(wpa_s, bss->bssid);
877 if (e) {
878 int limit = 1;
879 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
880 /*
881 * When only a single network is enabled, we can
882 * trigger blacklisting on the first failure. This
883 * should not be done with multiple enabled networks to
884 * avoid getting forced to move into a worse ESS on
885 * single error if there are no other BSSes of the
886 * current ESS.
887 */
888 limit = 0;
889 }
890 if (e->count > limit) {
891 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
892 "(count=%d limit=%d)", e->count, limit);
893 return NULL;
894 }
895 }
896
897 if (bss->ssid_len == 0) {
898 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
899 return NULL;
900 }
901
902 if (disallowed_bssid(wpa_s, bss->bssid)) {
903 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
904 return NULL;
905 }
906
907 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
908 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
909 return NULL;
910 }
911
912 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
913
914 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
915 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
916 int res;
917
918 if (wpas_network_disabled(wpa_s, ssid)) {
919 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
920 continue;
921 }
922
923 res = wpas_temp_disabled(wpa_s, ssid);
924 if (res > 0) {
925 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
926 "temporarily for %d second(s)", res);
927 continue;
928 }
929
930 #ifdef CONFIG_WPS
931 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
932 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
933 "(WPS)");
934 continue;
935 }
936
937 if (wpa && ssid->ssid_len == 0 &&
938 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
939 check_ssid = 0;
940
941 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
942 /* Only allow wildcard SSID match if an AP
943 * advertises active WPS operation that matches
944 * with our mode. */
945 check_ssid = 1;
946 if (ssid->ssid_len == 0 &&
947 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
948 check_ssid = 0;
949 }
950 #endif /* CONFIG_WPS */
951
952 if (ssid->bssid_set && ssid->ssid_len == 0 &&
953 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
954 check_ssid = 0;
955
956 if (check_ssid &&
957 (bss->ssid_len != ssid->ssid_len ||
958 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
959 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
960 continue;
961 }
962
963 if (ssid->bssid_set &&
964 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
965 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
966 continue;
967 }
968
969 /* check blacklist */
970 if (ssid->num_bssid_blacklist &&
971 addr_in_list(bss->bssid, ssid->bssid_blacklist,
972 ssid->num_bssid_blacklist)) {
973 wpa_dbg(wpa_s, MSG_DEBUG,
974 " skip - BSSID blacklisted");
975 continue;
976 }
977
978 /* if there is a whitelist, only accept those APs */
979 if (ssid->num_bssid_whitelist &&
980 !addr_in_list(bss->bssid, ssid->bssid_whitelist,
981 ssid->num_bssid_whitelist)) {
982 wpa_dbg(wpa_s, MSG_DEBUG,
983 " skip - BSSID not in whitelist");
984 continue;
985 }
986
987 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
988 continue;
989
990 if (!osen && !wpa &&
991 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
992 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
993 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
994 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
995 "not allowed");
996 continue;
997 }
998
999 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
1000 has_wep_key(ssid)) {
1001 wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block");
1002 continue;
1003 }
1004
1005 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) {
1006 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-OSEN network "
1007 "not allowed");
1008 continue;
1009 }
1010
1011 if (!wpa_supplicant_match_privacy(bss, ssid)) {
1012 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
1013 "mismatch");
1014 continue;
1015 }
1016
1017 if (ssid->mode != IEEE80211_MODE_MESH && !bss_is_ess(bss) &&
1018 !bss_is_pbss(bss)) {
1019 wpa_dbg(wpa_s, MSG_DEBUG,
1020 " skip - not ESS, PBSS, or MBSS");
1021 continue;
1022 }
1023
1024 if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) {
1025 wpa_dbg(wpa_s, MSG_DEBUG, " skip - PBSS mismatch (ssid %d bss %d)",
1026 ssid->pbss, bss_is_pbss(bss));
1027 continue;
1028 }
1029
1030 if (!freq_allowed(ssid->freq_list, bss->freq)) {
1031 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
1032 "allowed");
1033 continue;
1034 }
1035
1036 if (!rate_match(wpa_s, bss)) {
1037 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
1038 "not match");
1039 continue;
1040 }
1041
1042 #ifdef CONFIG_P2P
1043 if (ssid->p2p_group &&
1044 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1045 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1046 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
1047 continue;
1048 }
1049
1050 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1051 struct wpabuf *p2p_ie;
1052 u8 dev_addr[ETH_ALEN];
1053
1054 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1055 if (ie == NULL) {
1056 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element");
1057 continue;
1058 }
1059 p2p_ie = wpa_bss_get_vendor_ie_multi(
1060 bss, P2P_IE_VENDOR_TYPE);
1061 if (p2p_ie == NULL) {
1062 wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element");
1063 continue;
1064 }
1065
1066 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
1067 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
1068 ETH_ALEN) != 0) {
1069 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element");
1070 wpabuf_free(p2p_ie);
1071 continue;
1072 }
1073 wpabuf_free(p2p_ie);
1074 }
1075
1076 /*
1077 * TODO: skip the AP if its P2P IE has Group Formation
1078 * bit set in the P2P Group Capability Bitmap and we
1079 * are not in Group Formation with that device.
1080 */
1081 #endif /* CONFIG_P2P */
1082
1083 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time))
1084 {
1085 struct os_reltime diff;
1086
1087 os_reltime_sub(&wpa_s->scan_min_time,
1088 &bss->last_update, &diff);
1089 wpa_dbg(wpa_s, MSG_DEBUG,
1090 " skip - scan result not recent enough (%u.%06u seconds too old)",
1091 (unsigned int) diff.sec,
1092 (unsigned int) diff.usec);
1093 continue;
1094 }
1095 #ifdef CONFIG_MBO
1096 assoc_disallow = wpas_mbo_get_bss_attr(
1097 bss, MBO_ATTR_ID_ASSOC_DISALLOW);
1098 if (assoc_disallow && assoc_disallow[1] >= 1) {
1099 wpa_dbg(wpa_s, MSG_DEBUG,
1100 " skip - MBO association disallowed (reason %u)",
1101 assoc_disallow[2]);
1102 continue;
1103 }
1104
1105 if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) {
1106 wpa_dbg(wpa_s, MSG_DEBUG,
1107 " skip - MBO retry delay has not passed yet");
1108 continue;
1109 }
1110 #endif /* CONFIG_MBO */
1111
1112 /* Matching configuration found */
1113 return ssid;
1114 }
1115
1116 /* No matching configuration found */
1117 return NULL;
1118 }
1119
1120
1121 static struct wpa_bss *
1122 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1123 struct wpa_ssid *group,
1124 struct wpa_ssid **selected_ssid,
1125 int only_first_ssid)
1126 {
1127 unsigned int i;
1128
1129 if (only_first_ssid)
1130 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1131 group->id);
1132 else
1133 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1134 group->priority);
1135
1136 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1137 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1138 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1139 only_first_ssid);
1140 if (!*selected_ssid)
1141 continue;
1142 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
1143 " ssid='%s'",
1144 MAC2STR(bss->bssid),
1145 wpa_ssid_txt(bss->ssid, bss->ssid_len));
1146 return bss;
1147 }
1148
1149 return NULL;
1150 }
1151
1152
1153 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1154 struct wpa_ssid **selected_ssid)
1155 {
1156 struct wpa_bss *selected = NULL;
1157 int prio;
1158 struct wpa_ssid *next_ssid = NULL;
1159 struct wpa_ssid *ssid;
1160
1161 if (wpa_s->last_scan_res == NULL ||
1162 wpa_s->last_scan_res_used == 0)
1163 return NULL; /* no scan results from last update */
1164
1165 if (wpa_s->next_ssid) {
1166 /* check that next_ssid is still valid */
1167 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1168 if (ssid == wpa_s->next_ssid)
1169 break;
1170 }
1171 next_ssid = ssid;
1172 wpa_s->next_ssid = NULL;
1173 }
1174
1175 while (selected == NULL) {
1176 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1177 if (next_ssid && next_ssid->priority ==
1178 wpa_s->conf->pssid[prio]->priority) {
1179 selected = wpa_supplicant_select_bss(
1180 wpa_s, next_ssid, selected_ssid, 1);
1181 if (selected)
1182 break;
1183 }
1184 selected = wpa_supplicant_select_bss(
1185 wpa_s, wpa_s->conf->pssid[prio],
1186 selected_ssid, 0);
1187 if (selected)
1188 break;
1189 }
1190
1191 if (selected == NULL && wpa_s->blacklist &&
1192 !wpa_s->countermeasures) {
1193 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1194 "blacklist and try again");
1195 wpa_blacklist_clear(wpa_s);
1196 wpa_s->blacklist_cleared++;
1197 } else if (selected == NULL)
1198 break;
1199 }
1200
1201 ssid = *selected_ssid;
1202 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1203 !ssid->passphrase && !ssid->ext_psk) {
1204 const char *field_name, *txt = NULL;
1205
1206 wpa_dbg(wpa_s, MSG_DEBUG,
1207 "PSK/passphrase not yet available for the selected network");
1208
1209 wpas_notify_network_request(wpa_s, ssid,
1210 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1211
1212 field_name = wpa_supplicant_ctrl_req_to_string(
1213 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1214 if (field_name == NULL)
1215 return NULL;
1216
1217 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1218
1219 selected = NULL;
1220 }
1221
1222 return selected;
1223 }
1224
1225
1226 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1227 int timeout_sec, int timeout_usec)
1228 {
1229 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1230 /*
1231 * No networks are enabled; short-circuit request so
1232 * we don't wait timeout seconds before transitioning
1233 * to INACTIVE state.
1234 */
1235 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1236 "since there are no enabled networks");
1237 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1238 return;
1239 }
1240
1241 wpa_s->scan_for_connection = 1;
1242 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1243 }
1244
1245
1246 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1247 struct wpa_bss *selected,
1248 struct wpa_ssid *ssid)
1249 {
1250 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1251 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1252 "PBC session overlap");
1253 wpas_notify_wps_event_pbc_overlap(wpa_s);
1254 #ifdef CONFIG_P2P
1255 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1256 wpa_s->p2p_in_provisioning) {
1257 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1258 wpa_s, NULL);
1259 return -1;
1260 }
1261 #endif /* CONFIG_P2P */
1262
1263 #ifdef CONFIG_WPS
1264 wpas_wps_pbc_overlap(wpa_s);
1265 wpas_wps_cancel(wpa_s);
1266 #endif /* CONFIG_WPS */
1267 return -1;
1268 }
1269
1270 wpa_msg(wpa_s, MSG_DEBUG,
1271 "Considering connect request: reassociate: %d selected: "
1272 MACSTR " bssid: " MACSTR " pending: " MACSTR
1273 " wpa_state: %s ssid=%p current_ssid=%p",
1274 wpa_s->reassociate, MAC2STR(selected->bssid),
1275 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1276 wpa_supplicant_state_txt(wpa_s->wpa_state),
1277 ssid, wpa_s->current_ssid);
1278
1279 /*
1280 * Do not trigger new association unless the BSSID has changed or if
1281 * reassociation is requested. If we are in process of associating with
1282 * the selected BSSID, do not trigger new attempt.
1283 */
1284 if (wpa_s->reassociate ||
1285 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1286 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1287 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1288 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1289 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1290 0) ||
1291 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1292 ssid != wpa_s->current_ssid)))) {
1293 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1294 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1295 return 0;
1296 }
1297 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1298 MAC2STR(selected->bssid));
1299 wpa_supplicant_associate(wpa_s, selected, ssid);
1300 } else {
1301 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1302 "connect with the selected AP");
1303 }
1304
1305 return 0;
1306 }
1307
1308
1309 static struct wpa_ssid *
1310 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1311 {
1312 int prio;
1313 struct wpa_ssid *ssid;
1314
1315 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1316 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1317 {
1318 if (wpas_network_disabled(wpa_s, ssid))
1319 continue;
1320 if (ssid->mode == IEEE80211_MODE_IBSS ||
1321 ssid->mode == IEEE80211_MODE_AP ||
1322 ssid->mode == IEEE80211_MODE_MESH)
1323 return ssid;
1324 }
1325 }
1326 return NULL;
1327 }
1328
1329
1330 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1331 * on BSS added and BSS changed events */
1332 static void wpa_supplicant_rsn_preauth_scan_results(
1333 struct wpa_supplicant *wpa_s)
1334 {
1335 struct wpa_bss *bss;
1336
1337 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1338 return;
1339
1340 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1341 const u8 *ssid, *rsn;
1342
1343 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1344 if (ssid == NULL)
1345 continue;
1346
1347 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1348 if (rsn == NULL)
1349 continue;
1350
1351 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1352 }
1353
1354 }
1355
1356
1357 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1358 struct wpa_bss *selected,
1359 struct wpa_ssid *ssid)
1360 {
1361 struct wpa_bss *current_bss = NULL;
1362 #ifndef CONFIG_NO_ROAMING
1363 int min_diff;
1364 int to_5ghz;
1365 #endif /* CONFIG_NO_ROAMING */
1366
1367 if (wpa_s->reassociate)
1368 return 1; /* explicit request to reassociate */
1369 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1370 return 1; /* we are not associated; continue */
1371 if (wpa_s->current_ssid == NULL)
1372 return 1; /* unknown current SSID */
1373 if (wpa_s->current_ssid != ssid)
1374 return 1; /* different network block */
1375
1376 if (wpas_driver_bss_selection(wpa_s))
1377 return 0; /* Driver-based roaming */
1378
1379 if (wpa_s->current_ssid->ssid)
1380 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1381 wpa_s->current_ssid->ssid,
1382 wpa_s->current_ssid->ssid_len);
1383 if (!current_bss)
1384 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1385
1386 if (!current_bss)
1387 return 1; /* current BSS not seen in scan results */
1388
1389 if (current_bss == selected)
1390 return 0;
1391
1392 if (selected->last_update_idx > current_bss->last_update_idx)
1393 return 1; /* current BSS not seen in the last scan */
1394
1395 #ifndef CONFIG_NO_ROAMING
1396 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1397 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1398 " level=%d snr=%d est_throughput=%u",
1399 MAC2STR(current_bss->bssid), current_bss->level,
1400 current_bss->snr, current_bss->est_throughput);
1401 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1402 " level=%d snr=%d est_throughput=%u",
1403 MAC2STR(selected->bssid), selected->level,
1404 selected->snr, selected->est_throughput);
1405
1406 if (wpa_s->current_ssid->bssid_set &&
1407 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1408 0) {
1409 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1410 "has preferred BSSID");
1411 return 1;
1412 }
1413
1414 if (selected->est_throughput > current_bss->est_throughput + 5000) {
1415 wpa_dbg(wpa_s, MSG_DEBUG,
1416 "Allow reassociation - selected BSS has better estimated throughput");
1417 return 1;
1418 }
1419
1420 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
1421
1422 if (current_bss->level < 0 &&
1423 current_bss->level > selected->level + to_5ghz * 2) {
1424 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1425 "signal level");
1426 return 0;
1427 }
1428
1429 min_diff = 2;
1430 if (current_bss->level < 0) {
1431 if (current_bss->level < -85)
1432 min_diff = 1;
1433 else if (current_bss->level < -80)
1434 min_diff = 2;
1435 else if (current_bss->level < -75)
1436 min_diff = 3;
1437 else if (current_bss->level < -70)
1438 min_diff = 4;
1439 else
1440 min_diff = 5;
1441 }
1442 if (to_5ghz) {
1443 /* Make it easier to move to 5 GHz band */
1444 if (min_diff > 2)
1445 min_diff -= 2;
1446 else
1447 min_diff = 0;
1448 }
1449 if (abs(current_bss->level - selected->level) < min_diff) {
1450 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1451 "in signal level");
1452 return 0;
1453 }
1454
1455 return 1;
1456 #else /* CONFIG_NO_ROAMING */
1457 return 0;
1458 #endif /* CONFIG_NO_ROAMING */
1459 }
1460
1461
1462 /* Return != 0 if no scan results could be fetched or if scan results should not
1463 * be shared with other virtual interfaces. */
1464 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1465 union wpa_event_data *data,
1466 int own_request)
1467 {
1468 struct wpa_scan_results *scan_res = NULL;
1469 int ret = 0;
1470 int ap = 0;
1471 #ifndef CONFIG_NO_RANDOM_POOL
1472 size_t i, num;
1473 #endif /* CONFIG_NO_RANDOM_POOL */
1474
1475 #ifdef CONFIG_AP
1476 if (wpa_s->ap_iface)
1477 ap = 1;
1478 #endif /* CONFIG_AP */
1479
1480 wpa_supplicant_notify_scanning(wpa_s, 0);
1481
1482 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1483 data ? &data->scan_info :
1484 NULL, 1);
1485 if (scan_res == NULL) {
1486 if (wpa_s->conf->ap_scan == 2 || ap ||
1487 wpa_s->scan_res_handler == scan_only_handler)
1488 return -1;
1489 if (!own_request)
1490 return -1;
1491 if (data && data->scan_info.external_scan)
1492 return -1;
1493 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1494 "scanning again");
1495 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1496 ret = -1;
1497 goto scan_work_done;
1498 }
1499
1500 #ifndef CONFIG_NO_RANDOM_POOL
1501 num = scan_res->num;
1502 if (num > 10)
1503 num = 10;
1504 for (i = 0; i < num; i++) {
1505 u8 buf[5];
1506 struct wpa_scan_res *res = scan_res->res[i];
1507 buf[0] = res->bssid[5];
1508 buf[1] = res->qual & 0xff;
1509 buf[2] = res->noise & 0xff;
1510 buf[3] = res->level & 0xff;
1511 buf[4] = res->tsf & 0xff;
1512 random_add_randomness(buf, sizeof(buf));
1513 }
1514 #endif /* CONFIG_NO_RANDOM_POOL */
1515
1516 if (own_request && wpa_s->scan_res_handler &&
1517 !(data && data->scan_info.external_scan)) {
1518 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1519 struct wpa_scan_results *scan_res);
1520
1521 scan_res_handler = wpa_s->scan_res_handler;
1522 wpa_s->scan_res_handler = NULL;
1523 scan_res_handler(wpa_s, scan_res);
1524 ret = -2;
1525 goto scan_work_done;
1526 }
1527
1528 if (ap) {
1529 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1530 #ifdef CONFIG_AP
1531 if (wpa_s->ap_iface->scan_cb)
1532 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1533 #endif /* CONFIG_AP */
1534 goto scan_work_done;
1535 }
1536
1537 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1538 wpa_s->own_scan_running,
1539 data ? data->scan_info.external_scan : 0);
1540 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1541 wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
1542 own_request && !(data && data->scan_info.external_scan)) {
1543 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1544 wpa_s->manual_scan_id);
1545 wpa_s->manual_scan_use_id = 0;
1546 } else {
1547 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1548 }
1549 wpas_notify_scan_results(wpa_s);
1550
1551 wpas_notify_scan_done(wpa_s, 1);
1552
1553 if (data && data->scan_info.external_scan) {
1554 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1555 wpa_scan_results_free(scan_res);
1556 return 0;
1557 }
1558
1559 if (wnm_scan_process(wpa_s, 1) > 0)
1560 goto scan_work_done;
1561
1562 if (sme_proc_obss_scan(wpa_s) > 0)
1563 goto scan_work_done;
1564
1565 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1566 goto scan_work_done;
1567
1568 if (autoscan_notify_scan(wpa_s, scan_res))
1569 goto scan_work_done;
1570
1571 if (wpa_s->disconnected) {
1572 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1573 goto scan_work_done;
1574 }
1575
1576 if (!wpas_driver_bss_selection(wpa_s) &&
1577 bgscan_notify_scan(wpa_s, scan_res) == 1)
1578 goto scan_work_done;
1579
1580 wpas_wps_update_ap_info(wpa_s, scan_res);
1581
1582 if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
1583 wpa_s->wpa_state < WPA_COMPLETED)
1584 goto scan_work_done;
1585
1586 wpa_scan_results_free(scan_res);
1587
1588 if (own_request && wpa_s->scan_work) {
1589 struct wpa_radio_work *work = wpa_s->scan_work;
1590 wpa_s->scan_work = NULL;
1591 radio_work_done(work);
1592 }
1593
1594 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
1595
1596 scan_work_done:
1597 wpa_scan_results_free(scan_res);
1598 if (own_request && wpa_s->scan_work) {
1599 struct wpa_radio_work *work = wpa_s->scan_work;
1600 wpa_s->scan_work = NULL;
1601 radio_work_done(work);
1602 }
1603 return ret;
1604 }
1605
1606
1607 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
1608 int new_scan, int own_request)
1609 {
1610 struct wpa_bss *selected;
1611 struct wpa_ssid *ssid = NULL;
1612 int time_to_reenable = wpas_reenabled_network_time(wpa_s);
1613
1614 if (time_to_reenable > 0) {
1615 wpa_dbg(wpa_s, MSG_DEBUG,
1616 "Postpone network selection by %d seconds since all networks are disabled",
1617 time_to_reenable);
1618 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
1619 eloop_register_timeout(time_to_reenable, 0,
1620 wpas_network_reenabled, wpa_s, NULL);
1621 return 0;
1622 }
1623
1624 if (wpa_s->p2p_mgmt)
1625 return 0; /* no normal connection on p2p_mgmt interface */
1626
1627 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1628
1629 #ifdef CONFIG_MESH
1630 if (wpa_s->ifmsh) {
1631 wpa_msg(wpa_s, MSG_INFO,
1632 "Avoiding join because we already joined a mesh group");
1633 return 0;
1634 }
1635 #endif /* CONFIG_MESH */
1636
1637 if (selected) {
1638 int skip;
1639 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1640 if (skip) {
1641 if (new_scan)
1642 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1643 return 0;
1644 }
1645
1646 if (ssid != wpa_s->current_ssid &&
1647 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1648 wpa_s->own_disconnect_req = 1;
1649 wpa_supplicant_deauthenticate(
1650 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1651 }
1652
1653 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1654 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1655 return -1;
1656 }
1657 if (new_scan)
1658 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1659 /*
1660 * Do not notify other virtual radios of scan results since we do not
1661 * want them to start other associations at the same time.
1662 */
1663 return 1;
1664 } else {
1665 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1666 ssid = wpa_supplicant_pick_new_network(wpa_s);
1667 if (ssid) {
1668 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1669 wpa_supplicant_associate(wpa_s, NULL, ssid);
1670 if (new_scan)
1671 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1672 } else if (own_request) {
1673 /*
1674 * No SSID found. If SCAN results are as a result of
1675 * own scan request and not due to a scan request on
1676 * another shared interface, try another scan.
1677 */
1678 int timeout_sec = wpa_s->scan_interval;
1679 int timeout_usec = 0;
1680 #ifdef CONFIG_P2P
1681 int res;
1682
1683 res = wpas_p2p_scan_no_go_seen(wpa_s);
1684 if (res == 2)
1685 return 2;
1686 if (res == 1)
1687 return 0;
1688
1689 if (wpa_s->p2p_in_provisioning ||
1690 wpa_s->show_group_started ||
1691 wpa_s->p2p_in_invitation) {
1692 /*
1693 * Use shorter wait during P2P Provisioning
1694 * state and during P2P join-a-group operation
1695 * to speed up group formation.
1696 */
1697 timeout_sec = 0;
1698 timeout_usec = 250000;
1699 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1700 timeout_usec);
1701 return 0;
1702 }
1703 #endif /* CONFIG_P2P */
1704 #ifdef CONFIG_INTERWORKING
1705 if (wpa_s->conf->auto_interworking &&
1706 wpa_s->conf->interworking &&
1707 wpa_s->conf->cred) {
1708 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1709 "start ANQP fetch since no matching "
1710 "networks found");
1711 wpa_s->network_select = 1;
1712 wpa_s->auto_network_select = 1;
1713 interworking_start_fetch_anqp(wpa_s);
1714 return 1;
1715 }
1716 #endif /* CONFIG_INTERWORKING */
1717 #ifdef CONFIG_WPS
1718 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
1719 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1720 timeout_sec = 0;
1721 timeout_usec = 500000;
1722 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1723 timeout_usec);
1724 return 0;
1725 }
1726 #endif /* CONFIG_WPS */
1727 if (wpa_supplicant_req_sched_scan(wpa_s))
1728 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1729 timeout_usec);
1730
1731 wpa_msg_ctrl(wpa_s, MSG_INFO,
1732 WPA_EVENT_NETWORK_NOT_FOUND);
1733 }
1734 }
1735 return 0;
1736 }
1737
1738
1739 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1740 union wpa_event_data *data)
1741 {
1742 struct wpa_supplicant *ifs;
1743 int res;
1744
1745 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1);
1746 if (res == 2) {
1747 /*
1748 * Interface may have been removed, so must not dereference
1749 * wpa_s after this.
1750 */
1751 return 1;
1752 }
1753 if (res != 0) {
1754 /*
1755 * If no scan results could be fetched, then no need to
1756 * notify those interfaces that did not actually request
1757 * this scan. Similarly, if scan results started a new operation on this
1758 * interface, do not notify other interfaces to avoid concurrent
1759 * operations during a connection attempt.
1760 */
1761 return 0;
1762 }
1763
1764 /*
1765 * Check other interfaces to see if they share the same radio. If
1766 * so, they get updated with this same scan info.
1767 */
1768 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1769 radio_list) {
1770 if (ifs != wpa_s) {
1771 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1772 "sibling", ifs->ifname);
1773 _wpa_supplicant_event_scan_results(ifs, data, 0);
1774 }
1775 }
1776
1777 return 0;
1778 }
1779
1780 #endif /* CONFIG_NO_SCAN_PROCESSING */
1781
1782
1783 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1784 {
1785 #ifdef CONFIG_NO_SCAN_PROCESSING
1786 return -1;
1787 #else /* CONFIG_NO_SCAN_PROCESSING */
1788 struct os_reltime now;
1789
1790 if (wpa_s->last_scan_res_used == 0)
1791 return -1;
1792
1793 os_get_reltime(&now);
1794 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
1795 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1796 return -1;
1797 }
1798
1799 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
1800 #endif /* CONFIG_NO_SCAN_PROCESSING */
1801 }
1802
1803 #ifdef CONFIG_WNM
1804
1805 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1806 {
1807 struct wpa_supplicant *wpa_s = eloop_ctx;
1808
1809 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1810 return;
1811
1812 if (!wpa_s->no_keep_alive) {
1813 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1814 MAC2STR(wpa_s->bssid));
1815 /* TODO: could skip this if normal data traffic has been sent */
1816 /* TODO: Consider using some more appropriate data frame for
1817 * this */
1818 if (wpa_s->l2)
1819 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1820 (u8 *) "", 0);
1821 }
1822
1823 #ifdef CONFIG_SME
1824 if (wpa_s->sme.bss_max_idle_period) {
1825 unsigned int msec;
1826 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1827 if (msec > 100)
1828 msec -= 100;
1829 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1830 wnm_bss_keep_alive, wpa_s, NULL);
1831 }
1832 #endif /* CONFIG_SME */
1833 }
1834
1835
1836 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1837 const u8 *ies, size_t ies_len)
1838 {
1839 struct ieee802_11_elems elems;
1840
1841 if (ies == NULL)
1842 return;
1843
1844 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1845 return;
1846
1847 #ifdef CONFIG_SME
1848 if (elems.bss_max_idle_period) {
1849 unsigned int msec;
1850 wpa_s->sme.bss_max_idle_period =
1851 WPA_GET_LE16(elems.bss_max_idle_period);
1852 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1853 "TU)%s", wpa_s->sme.bss_max_idle_period,
1854 (elems.bss_max_idle_period[2] & 0x01) ?
1855 " (protected keep-live required)" : "");
1856 if (wpa_s->sme.bss_max_idle_period == 0)
1857 wpa_s->sme.bss_max_idle_period = 1;
1858 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1859 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1860 /* msec times 1000 */
1861 msec = wpa_s->sme.bss_max_idle_period * 1024;
1862 if (msec > 100)
1863 msec -= 100;
1864 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1865 wnm_bss_keep_alive, wpa_s,
1866 NULL);
1867 }
1868 }
1869 #endif /* CONFIG_SME */
1870 }
1871
1872 #endif /* CONFIG_WNM */
1873
1874
1875 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1876 {
1877 #ifdef CONFIG_WNM
1878 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1879 #endif /* CONFIG_WNM */
1880 }
1881
1882
1883 #ifdef CONFIG_INTERWORKING
1884
1885 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1886 size_t len)
1887 {
1888 int res;
1889
1890 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1891 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1892 if (res) {
1893 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1894 }
1895
1896 return res;
1897 }
1898
1899
1900 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1901 const u8 *ies, size_t ies_len)
1902 {
1903 struct ieee802_11_elems elems;
1904
1905 if (ies == NULL)
1906 return;
1907
1908 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1909 return;
1910
1911 if (elems.qos_map_set) {
1912 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1913 elems.qos_map_set_len);
1914 }
1915 }
1916
1917 #endif /* CONFIG_INTERWORKING */
1918
1919
1920 #ifdef CONFIG_FST
1921 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
1922 const u8 *ie, size_t ie_len)
1923 {
1924 struct mb_ies_info mb_ies;
1925
1926 if (!ie || !ie_len || !wpa_s->fst)
1927 return -ENOENT;
1928
1929 os_memset(&mb_ies, 0, sizeof(mb_ies));
1930
1931 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
1932 size_t len;
1933
1934 len = 2 + ie[1];
1935 if (len > ie_len) {
1936 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
1937 ie, ie_len);
1938 break;
1939 }
1940
1941 if (ie[0] == WLAN_EID_MULTI_BAND) {
1942 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
1943 (unsigned int) len);
1944 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
1945 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
1946 mb_ies.nof_ies++;
1947 }
1948
1949 ie_len -= len;
1950 ie += len;
1951 }
1952
1953 if (mb_ies.nof_ies > 0) {
1954 wpabuf_free(wpa_s->received_mb_ies);
1955 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
1956 return 0;
1957 }
1958
1959 return -ENOENT;
1960 }
1961 #endif /* CONFIG_FST */
1962
1963
1964 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1965 union wpa_event_data *data)
1966 {
1967 int l, len, found = 0, wpa_found, rsn_found;
1968 const u8 *p;
1969 #ifdef CONFIG_IEEE80211R
1970 u8 bssid[ETH_ALEN];
1971 #endif /* CONFIG_IEEE80211R */
1972
1973 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1974 if (data->assoc_info.req_ies)
1975 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1976 data->assoc_info.req_ies_len);
1977 if (data->assoc_info.resp_ies) {
1978 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1979 data->assoc_info.resp_ies_len);
1980 #ifdef CONFIG_TDLS
1981 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1982 data->assoc_info.resp_ies_len);
1983 #endif /* CONFIG_TDLS */
1984 #ifdef CONFIG_WNM
1985 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1986 data->assoc_info.resp_ies_len);
1987 #endif /* CONFIG_WNM */
1988 #ifdef CONFIG_INTERWORKING
1989 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1990 data->assoc_info.resp_ies_len);
1991 #endif /* CONFIG_INTERWORKING */
1992 }
1993 if (data->assoc_info.beacon_ies)
1994 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1995 data->assoc_info.beacon_ies,
1996 data->assoc_info.beacon_ies_len);
1997 if (data->assoc_info.freq)
1998 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1999 data->assoc_info.freq);
2000
2001 p = data->assoc_info.req_ies;
2002 l = data->assoc_info.req_ies_len;
2003
2004 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
2005 while (p && l >= 2) {
2006 len = p[1] + 2;
2007 if (len > l) {
2008 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2009 p, l);
2010 break;
2011 }
2012 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2013 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
2014 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
2015 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
2016 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
2017 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
2018 break;
2019 found = 1;
2020 wpa_find_assoc_pmkid(wpa_s);
2021 break;
2022 }
2023 l -= len;
2024 p += len;
2025 }
2026 if (!found && data->assoc_info.req_ies)
2027 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2028
2029 #ifdef CONFIG_IEEE80211R
2030 #ifdef CONFIG_SME
2031 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
2032 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2033 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2034 data->assoc_info.resp_ies,
2035 data->assoc_info.resp_ies_len,
2036 bssid) < 0) {
2037 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2038 "Reassociation Response failed");
2039 wpa_supplicant_deauthenticate(
2040 wpa_s, WLAN_REASON_INVALID_IE);
2041 return -1;
2042 }
2043 }
2044
2045 p = data->assoc_info.resp_ies;
2046 l = data->assoc_info.resp_ies_len;
2047
2048 #ifdef CONFIG_WPS_STRICT
2049 if (p && wpa_s->current_ssid &&
2050 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
2051 struct wpabuf *wps;
2052 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
2053 if (wps == NULL) {
2054 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
2055 "include WPS IE in (Re)Association Response");
2056 return -1;
2057 }
2058
2059 if (wps_validate_assoc_resp(wps) < 0) {
2060 wpabuf_free(wps);
2061 wpa_supplicant_deauthenticate(
2062 wpa_s, WLAN_REASON_INVALID_IE);
2063 return -1;
2064 }
2065 wpabuf_free(wps);
2066 }
2067 #endif /* CONFIG_WPS_STRICT */
2068
2069 /* Go through the IEs and make a copy of the MDIE, if present. */
2070 while (p && l >= 2) {
2071 len = p[1] + 2;
2072 if (len > l) {
2073 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2074 p, l);
2075 break;
2076 }
2077 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
2078 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
2079 wpa_s->sme.ft_used = 1;
2080 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
2081 MOBILITY_DOMAIN_ID_LEN);
2082 break;
2083 }
2084 l -= len;
2085 p += len;
2086 }
2087 #endif /* CONFIG_SME */
2088
2089 /* Process FT when SME is in the driver */
2090 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
2091 wpa_ft_is_completed(wpa_s->wpa)) {
2092 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2093 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2094 data->assoc_info.resp_ies,
2095 data->assoc_info.resp_ies_len,
2096 bssid) < 0) {
2097 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2098 "Reassociation Response failed");
2099 wpa_supplicant_deauthenticate(
2100 wpa_s, WLAN_REASON_INVALID_IE);
2101 return -1;
2102 }
2103 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
2104 }
2105
2106 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
2107 data->assoc_info.resp_ies_len);
2108 #endif /* CONFIG_IEEE80211R */
2109
2110 /* WPA/RSN IE from Beacon/ProbeResp */
2111 p = data->assoc_info.beacon_ies;
2112 l = data->assoc_info.beacon_ies_len;
2113
2114 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
2115 */
2116 wpa_found = rsn_found = 0;
2117 while (p && l >= 2) {
2118 len = p[1] + 2;
2119 if (len > l) {
2120 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
2121 p, l);
2122 break;
2123 }
2124 if (!wpa_found &&
2125 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2126 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
2127 wpa_found = 1;
2128 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
2129 }
2130
2131 if (!rsn_found &&
2132 p[0] == WLAN_EID_RSN && p[1] >= 2) {
2133 rsn_found = 1;
2134 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
2135 }
2136
2137 l -= len;
2138 p += len;
2139 }
2140
2141 if (!wpa_found && data->assoc_info.beacon_ies)
2142 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
2143 if (!rsn_found && data->assoc_info.beacon_ies)
2144 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
2145 if (wpa_found || rsn_found)
2146 wpa_s->ap_ies_from_associnfo = 1;
2147
2148 if (wpa_s->assoc_freq && data->assoc_info.freq &&
2149 wpa_s->assoc_freq != data->assoc_info.freq) {
2150 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
2151 "%u to %u MHz",
2152 wpa_s->assoc_freq, data->assoc_info.freq);
2153 wpa_supplicant_update_scan_results(wpa_s);
2154 }
2155
2156 wpa_s->assoc_freq = data->assoc_info.freq;
2157
2158 return 0;
2159 }
2160
2161
2162 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
2163 {
2164 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
2165
2166 if (!wpa_s->current_bss || !wpa_s->current_ssid)
2167 return -1;
2168
2169 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
2170 return 0;
2171
2172 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
2173 WPA_IE_VENDOR_TYPE);
2174 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
2175
2176 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
2177 bss_wpa ? 2 + bss_wpa[1] : 0) ||
2178 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
2179 bss_rsn ? 2 + bss_rsn[1] : 0))
2180 return -1;
2181
2182 return 0;
2183 }
2184
2185
2186 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
2187 union wpa_event_data *data)
2188 {
2189 #ifdef CONFIG_FST
2190 struct assoc_info *ai = data ? &data->assoc_info : NULL;
2191 struct wpa_bss *bss = wpa_s->current_bss;
2192 const u8 *ieprb, *iebcn;
2193
2194 wpabuf_free(wpa_s->received_mb_ies);
2195 wpa_s->received_mb_ies = NULL;
2196
2197 if (ai &&
2198 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
2199 wpa_printf(MSG_DEBUG,
2200 "FST: MB IEs updated from Association Response frame");
2201 return;
2202 }
2203
2204 if (ai &&
2205 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
2206 wpa_printf(MSG_DEBUG,
2207 "FST: MB IEs updated from association event Beacon IEs");
2208 return;
2209 }
2210
2211 if (!bss)
2212 return;
2213
2214 ieprb = (const u8 *) (bss + 1);
2215 iebcn = ieprb + bss->ie_len;
2216
2217 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
2218 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
2219 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
2220 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
2221 #endif /* CONFIG_FST */
2222 }
2223
2224
2225 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
2226 union wpa_event_data *data)
2227 {
2228 u8 bssid[ETH_ALEN];
2229 int ft_completed;
2230 int new_bss = 0;
2231
2232 #ifdef CONFIG_AP
2233 if (wpa_s->ap_iface) {
2234 if (!data)
2235 return;
2236 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
2237 data->assoc_info.addr,
2238 data->assoc_info.req_ies,
2239 data->assoc_info.req_ies_len,
2240 data->assoc_info.reassoc);
2241 return;
2242 }
2243 #endif /* CONFIG_AP */
2244
2245 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2246
2247 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
2248 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
2249 return;
2250
2251 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
2252 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
2253 wpa_supplicant_deauthenticate(
2254 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2255 return;
2256 }
2257
2258 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
2259 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
2260 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
2261 MACSTR, MAC2STR(bssid));
2262 new_bss = 1;
2263 random_add_randomness(bssid, ETH_ALEN);
2264 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
2265 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2266 wpas_notify_bssid_changed(wpa_s);
2267
2268 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
2269 wpa_clear_keys(wpa_s, bssid);
2270 }
2271 if (wpa_supplicant_select_config(wpa_s) < 0) {
2272 wpa_supplicant_deauthenticate(
2273 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2274 return;
2275 }
2276 }
2277
2278 if (wpa_s->conf->ap_scan == 1 &&
2279 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
2280 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
2281 wpa_msg(wpa_s, MSG_WARNING,
2282 "WPA/RSN IEs not updated");
2283 }
2284
2285 wpas_fst_update_mb_assoc(wpa_s, data);
2286
2287 #ifdef CONFIG_SME
2288 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
2289 wpa_s->sme.prev_bssid_set = 1;
2290 wpa_s->sme.last_unprot_disconnect.sec = 0;
2291 #endif /* CONFIG_SME */
2292
2293 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
2294 if (wpa_s->current_ssid) {
2295 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
2296 * initialized before association, but for other modes,
2297 * initialize PC/SC here, if the current configuration needs
2298 * smartcard or SIM/USIM. */
2299 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
2300 }
2301 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
2302 if (wpa_s->l2)
2303 l2_packet_notify_auth_start(wpa_s->l2);
2304
2305 /*
2306 * Set portEnabled first to FALSE in order to get EAP state machine out
2307 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
2308 * state machine may transit to AUTHENTICATING state based on obsolete
2309 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
2310 * AUTHENTICATED without ever giving chance to EAP state machine to
2311 * reset the state.
2312 */
2313 if (!ft_completed) {
2314 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
2315 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
2316 }
2317 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
2318 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
2319 /* 802.1X::portControl = Auto */
2320 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
2321 wpa_s->eapol_received = 0;
2322 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2323 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
2324 (wpa_s->current_ssid &&
2325 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
2326 if (wpa_s->current_ssid &&
2327 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
2328 (wpa_s->drv_flags &
2329 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2330 /*
2331 * Set the key after having received joined-IBSS event
2332 * from the driver.
2333 */
2334 wpa_supplicant_set_wpa_none_key(wpa_s,
2335 wpa_s->current_ssid);
2336 }
2337 wpa_supplicant_cancel_auth_timeout(wpa_s);
2338 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2339 } else if (!ft_completed) {
2340 /* Timeout for receiving the first EAPOL packet */
2341 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
2342 }
2343 wpa_supplicant_cancel_scan(wpa_s);
2344
2345 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2346 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
2347 /*
2348 * We are done; the driver will take care of RSN 4-way
2349 * handshake.
2350 */
2351 wpa_supplicant_cancel_auth_timeout(wpa_s);
2352 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2353 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2354 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2355 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2356 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
2357 /*
2358 * The driver will take care of RSN 4-way handshake, so we need
2359 * to allow EAPOL supplicant to complete its work without
2360 * waiting for WPA supplicant.
2361 */
2362 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2363 } else if (ft_completed) {
2364 /*
2365 * FT protocol completed - make sure EAPOL state machine ends
2366 * up in authenticated.
2367 */
2368 wpa_supplicant_cancel_auth_timeout(wpa_s);
2369 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2370 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2371 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2372 }
2373
2374 wpa_s->last_eapol_matches_bssid = 0;
2375
2376 if (wpa_s->pending_eapol_rx) {
2377 struct os_reltime now, age;
2378 os_get_reltime(&now);
2379 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
2380 if (age.sec == 0 && age.usec < 100000 &&
2381 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2382 0) {
2383 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2384 "frame that was received just before "
2385 "association notification");
2386 wpa_supplicant_rx_eapol(
2387 wpa_s, wpa_s->pending_eapol_rx_src,
2388 wpabuf_head(wpa_s->pending_eapol_rx),
2389 wpabuf_len(wpa_s->pending_eapol_rx));
2390 }
2391 wpabuf_free(wpa_s->pending_eapol_rx);
2392 wpa_s->pending_eapol_rx = NULL;
2393 }
2394
2395 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2396 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
2397 wpa_s->current_ssid &&
2398 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2399 /* Set static WEP keys again */
2400 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2401 }
2402
2403 #ifdef CONFIG_IBSS_RSN
2404 if (wpa_s->current_ssid &&
2405 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2406 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2407 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2408 wpa_s->ibss_rsn == NULL) {
2409 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2410 if (!wpa_s->ibss_rsn) {
2411 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2412 wpa_supplicant_deauthenticate(
2413 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2414 return;
2415 }
2416
2417 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2418 }
2419 #endif /* CONFIG_IBSS_RSN */
2420
2421 wpas_wps_notify_assoc(wpa_s, bssid);
2422
2423 if (data) {
2424 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2425 data->assoc_info.resp_ies_len,
2426 &data->assoc_info.wmm_params);
2427
2428 if (wpa_s->reassoc_same_bss)
2429 wmm_ac_restore_tspecs(wpa_s);
2430 }
2431 }
2432
2433
2434 static int disconnect_reason_recoverable(u16 reason_code)
2435 {
2436 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2437 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2438 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2439 }
2440
2441
2442 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
2443 u16 reason_code,
2444 int locally_generated)
2445 {
2446 const u8 *bssid;
2447
2448 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2449 /*
2450 * At least Host AP driver and a Prism3 card seemed to be
2451 * generating streams of disconnected events when configuring
2452 * IBSS for WPA-None. Ignore them for now.
2453 */
2454 return;
2455 }
2456
2457 bssid = wpa_s->bssid;
2458 if (is_zero_ether_addr(bssid))
2459 bssid = wpa_s->pending_bssid;
2460
2461 if (!is_zero_ether_addr(bssid) ||
2462 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2463 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2464 " reason=%d%s",
2465 MAC2STR(bssid), reason_code,
2466 locally_generated ? " locally_generated=1" : "");
2467 }
2468 }
2469
2470
2471 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2472 int locally_generated)
2473 {
2474 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2475 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2476 return 0; /* Not in 4-way handshake with PSK */
2477
2478 /*
2479 * It looks like connection was lost while trying to go through PSK
2480 * 4-way handshake. Filter out known disconnection cases that are caused
2481 * by something else than PSK mismatch to avoid confusing reports.
2482 */
2483
2484 if (locally_generated) {
2485 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2486 return 0;
2487 }
2488
2489 return 1;
2490 }
2491
2492
2493 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2494 u16 reason_code,
2495 int locally_generated)
2496 {
2497 const u8 *bssid;
2498 int authenticating;
2499 u8 prev_pending_bssid[ETH_ALEN];
2500 struct wpa_bss *fast_reconnect = NULL;
2501 struct wpa_ssid *fast_reconnect_ssid = NULL;
2502 struct wpa_ssid *last_ssid;
2503
2504 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2505 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
2506
2507 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2508 /*
2509 * At least Host AP driver and a Prism3 card seemed to be
2510 * generating streams of disconnected events when configuring
2511 * IBSS for WPA-None. Ignore them for now.
2512 */
2513 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2514 "IBSS/WPA-None mode");
2515 return;
2516 }
2517
2518 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
2519 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2520 "pre-shared key may be incorrect");
2521 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2522 return; /* P2P group removed */
2523 wpas_auth_failed(wpa_s, "WRONG_KEY");
2524 }
2525 if (!wpa_s->disconnected &&
2526 (!wpa_s->auto_reconnect_disabled ||
2527 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
2528 wpas_wps_searching(wpa_s) ||
2529 wpas_wps_reenable_networks_pending(wpa_s))) {
2530 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
2531 "reconnect (wps=%d/%d wpa_state=%d)",
2532 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2533 wpas_wps_searching(wpa_s),
2534 wpa_s->wpa_state);
2535 if (wpa_s->wpa_state == WPA_COMPLETED &&
2536 wpa_s->current_ssid &&
2537 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
2538 !locally_generated &&
2539 disconnect_reason_recoverable(reason_code)) {
2540 /*
2541 * It looks like the AP has dropped association with
2542 * us, but could allow us to get back in. Try to
2543 * reconnect to the same BSS without full scan to save
2544 * time for some common cases.
2545 */
2546 fast_reconnect = wpa_s->current_bss;
2547 fast_reconnect_ssid = wpa_s->current_ssid;
2548 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
2549 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2550 else
2551 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2552 "immediate scan");
2553 } else {
2554 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
2555 "try to re-connect");
2556 wpa_s->reassociate = 0;
2557 wpa_s->disconnected = 1;
2558 if (!wpa_s->pno)
2559 wpa_supplicant_cancel_sched_scan(wpa_s);
2560 }
2561 bssid = wpa_s->bssid;
2562 if (is_zero_ether_addr(bssid))
2563 bssid = wpa_s->pending_bssid;
2564 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2565 wpas_connection_failed(wpa_s, bssid);
2566 wpa_sm_notify_disassoc(wpa_s->wpa);
2567 if (locally_generated)
2568 wpa_s->disconnect_reason = -reason_code;
2569 else
2570 wpa_s->disconnect_reason = reason_code;
2571 wpas_notify_disconnect_reason(wpa_s);
2572 if (wpa_supplicant_dynamic_keys(wpa_s)) {
2573 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
2574 wpa_clear_keys(wpa_s, wpa_s->bssid);
2575 }
2576 last_ssid = wpa_s->current_ssid;
2577 wpa_supplicant_mark_disassoc(wpa_s);
2578
2579 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2580 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2581 wpa_s->current_ssid = last_ssid;
2582 }
2583
2584 if (fast_reconnect &&
2585 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2586 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2587 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2588 fast_reconnect->ssid_len) &&
2589 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
2590 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) {
2591 #ifndef CONFIG_NO_SCAN_PROCESSING
2592 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2593 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2594 fast_reconnect_ssid) < 0) {
2595 /* Recover through full scan */
2596 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2597 }
2598 #endif /* CONFIG_NO_SCAN_PROCESSING */
2599 } else if (fast_reconnect) {
2600 /*
2601 * Could not reconnect to the same BSS due to network being
2602 * disabled. Use a new scan to match the alternative behavior
2603 * above, i.e., to continue automatic reconnection attempt in a
2604 * way that enforces disabled network rules.
2605 */
2606 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2607 }
2608 }
2609
2610
2611 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2612 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
2613 {
2614 struct wpa_supplicant *wpa_s = eloop_ctx;
2615
2616 if (!wpa_s->pending_mic_error_report)
2617 return;
2618
2619 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2620 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2621 wpa_s->pending_mic_error_report = 0;
2622 }
2623 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2624
2625
2626 static void
2627 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2628 union wpa_event_data *data)
2629 {
2630 int pairwise;
2631 struct os_reltime t;
2632
2633 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2634 pairwise = (data && data->michael_mic_failure.unicast);
2635 os_get_reltime(&t);
2636 if ((wpa_s->last_michael_mic_error.sec &&
2637 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
2638 wpa_s->pending_mic_error_report) {
2639 if (wpa_s->pending_mic_error_report) {
2640 /*
2641 * Send the pending MIC error report immediately since
2642 * we are going to start countermeasures and AP better
2643 * do the same.
2644 */
2645 wpa_sm_key_request(wpa_s->wpa, 1,
2646 wpa_s->pending_mic_error_pairwise);
2647 }
2648
2649 /* Send the new MIC error report immediately since we are going
2650 * to start countermeasures and AP better do the same.
2651 */
2652 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2653
2654 /* initialize countermeasures */
2655 wpa_s->countermeasures = 1;
2656
2657 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2658
2659 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2660
2661 /*
2662 * Need to wait for completion of request frame. We do not get
2663 * any callback for the message completion, so just wait a
2664 * short while and hope for the best. */
2665 os_sleep(0, 10000);
2666
2667 wpa_drv_set_countermeasures(wpa_s, 1);
2668 wpa_supplicant_deauthenticate(wpa_s,
2669 WLAN_REASON_MICHAEL_MIC_FAILURE);
2670 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2671 wpa_s, NULL);
2672 eloop_register_timeout(60, 0,
2673 wpa_supplicant_stop_countermeasures,
2674 wpa_s, NULL);
2675 /* TODO: mark the AP rejected for 60 second. STA is
2676 * allowed to associate with another AP.. */
2677 } else {
2678 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2679 if (wpa_s->mic_errors_seen) {
2680 /*
2681 * Reduce the effectiveness of Michael MIC error
2682 * reports as a means for attacking against TKIP if
2683 * more than one MIC failure is noticed with the same
2684 * PTK. We delay the transmission of the reports by a
2685 * random time between 0 and 60 seconds in order to
2686 * force the attacker wait 60 seconds before getting
2687 * the information on whether a frame resulted in a MIC
2688 * failure.
2689 */
2690 u8 rval[4];
2691 int sec;
2692
2693 if (os_get_random(rval, sizeof(rval)) < 0)
2694 sec = os_random() % 60;
2695 else
2696 sec = WPA_GET_BE32(rval) % 60;
2697 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2698 "report %d seconds", sec);
2699 wpa_s->pending_mic_error_report = 1;
2700 wpa_s->pending_mic_error_pairwise = pairwise;
2701 eloop_cancel_timeout(
2702 wpa_supplicant_delayed_mic_error_report,
2703 wpa_s, NULL);
2704 eloop_register_timeout(
2705 sec, os_random() % 1000000,
2706 wpa_supplicant_delayed_mic_error_report,
2707 wpa_s, NULL);
2708 } else {
2709 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2710 }
2711 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2712 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2713 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2714 }
2715 wpa_s->last_michael_mic_error = t;
2716 wpa_s->mic_errors_seen++;
2717 }
2718
2719
2720 #ifdef CONFIG_TERMINATE_ONLASTIF
2721 static int any_interfaces(struct wpa_supplicant *head)
2722 {
2723 struct wpa_supplicant *wpa_s;
2724
2725 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2726 if (!wpa_s->interface_removed)
2727 return 1;
2728 return 0;
2729 }
2730 #endif /* CONFIG_TERMINATE_ONLASTIF */
2731
2732
2733 static void
2734 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2735 union wpa_event_data *data)
2736 {
2737 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2738 return;
2739
2740 switch (data->interface_status.ievent) {
2741 case EVENT_INTERFACE_ADDED:
2742 if (!wpa_s->interface_removed)
2743 break;
2744 wpa_s->interface_removed = 0;
2745 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2746 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2747 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2748 "driver after interface was added");
2749 }
2750
2751 #ifdef CONFIG_P2P
2752 if (!wpa_s->global->p2p &&
2753 !wpa_s->global->p2p_disabled &&
2754 !wpa_s->conf->p2p_disabled &&
2755 (wpa_s->drv_flags &
2756 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
2757 wpas_p2p_add_p2pdev_interface(
2758 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
2759 wpa_printf(MSG_INFO,
2760 "P2P: Failed to enable P2P Device interface");
2761 /* Try to continue without. P2P will be disabled. */
2762 }
2763 #endif /* CONFIG_P2P */
2764
2765 break;
2766 case EVENT_INTERFACE_REMOVED:
2767 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2768 wpa_s->interface_removed = 1;
2769 wpa_supplicant_mark_disassoc(wpa_s);
2770 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2771 l2_packet_deinit(wpa_s->l2);
2772 wpa_s->l2 = NULL;
2773
2774 #ifdef CONFIG_P2P
2775 if (wpa_s->global->p2p &&
2776 wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
2777 (wpa_s->drv_flags &
2778 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
2779 wpa_dbg(wpa_s, MSG_DEBUG,
2780 "Removing P2P Device interface");
2781 wpa_supplicant_remove_iface(
2782 wpa_s->global, wpa_s->global->p2p_init_wpa_s,
2783 0);
2784 wpa_s->global->p2p_init_wpa_s = NULL;
2785 }
2786 #endif /* CONFIG_P2P */
2787
2788 #ifdef CONFIG_MATCH_IFACE
2789 if (wpa_s->matched) {
2790 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
2791 break;
2792 }
2793 #endif /* CONFIG_MATCH_IFACE */
2794
2795 #ifdef CONFIG_TERMINATE_ONLASTIF
2796 /* check if last interface */
2797 if (!any_interfaces(wpa_s->global->ifaces))
2798 eloop_terminate();
2799 #endif /* CONFIG_TERMINATE_ONLASTIF */
2800 break;
2801 }
2802 }
2803
2804
2805 #ifdef CONFIG_PEERKEY
2806 static void
2807 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2808 union wpa_event_data *data)
2809 {
2810 if (data == NULL)
2811 return;
2812 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2813 }
2814 #endif /* CONFIG_PEERKEY */
2815
2816
2817 #ifdef CONFIG_TDLS
2818 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2819 union wpa_event_data *data)
2820 {
2821 if (data == NULL)
2822 return;
2823 switch (data->tdls.oper) {
2824 case TDLS_REQUEST_SETUP:
2825 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2826 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2827 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2828 else
2829 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2830 break;
2831 case TDLS_REQUEST_TEARDOWN:
2832 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2833 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2834 data->tdls.reason_code);
2835 else
2836 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2837 data->tdls.peer);
2838 break;
2839 case TDLS_REQUEST_DISCOVER:
2840 wpa_tdls_send_discovery_request(wpa_s->wpa,
2841 data->tdls.peer);
2842 break;
2843 }
2844 }
2845 #endif /* CONFIG_TDLS */
2846
2847
2848 #ifdef CONFIG_WNM
2849 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2850 union wpa_event_data *data)
2851 {
2852 if (data == NULL)
2853 return;
2854 switch (data->wnm.oper) {
2855 case WNM_OPER_SLEEP:
2856 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2857 "(action=%d, intval=%d)",
2858 data->wnm.sleep_action, data->wnm.sleep_intval);
2859 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2860 data->wnm.sleep_intval, NULL);
2861 break;
2862 }
2863 }
2864 #endif /* CONFIG_WNM */
2865
2866
2867 #ifdef CONFIG_IEEE80211R
2868 static void
2869 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2870 union wpa_event_data *data)
2871 {
2872 if (data == NULL)
2873 return;
2874
2875 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2876 data->ft_ies.ies_len,
2877 data->ft_ies.ft_action,
2878 data->ft_ies.target_ap,
2879 data->ft_ies.ric_ies,
2880 data->ft_ies.ric_ies_len) < 0) {
2881 /* TODO: prevent MLME/driver from trying to associate? */
2882 }
2883 }
2884 #endif /* CONFIG_IEEE80211R */
2885
2886
2887 #ifdef CONFIG_IBSS_RSN
2888 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2889 union wpa_event_data *data)
2890 {
2891 struct wpa_ssid *ssid;
2892 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2893 return;
2894 if (data == NULL)
2895 return;
2896 ssid = wpa_s->current_ssid;
2897 if (ssid == NULL)
2898 return;
2899 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2900 return;
2901
2902 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2903 }
2904
2905
2906 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2907 union wpa_event_data *data)
2908 {
2909 struct wpa_ssid *ssid = wpa_s->current_ssid;
2910
2911 if (ssid == NULL)
2912 return;
2913
2914 /* check if the ssid is correctly configured as IBSS/RSN */
2915 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2916 return;
2917
2918 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2919 data->rx_mgmt.frame_len);
2920 }
2921 #endif /* CONFIG_IBSS_RSN */
2922
2923
2924 #ifdef CONFIG_IEEE80211R
2925 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2926 size_t len)
2927 {
2928 const u8 *sta_addr, *target_ap_addr;
2929 u16 status;
2930
2931 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2932 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2933 return; /* only SME case supported for now */
2934 if (len < 1 + 2 * ETH_ALEN + 2)
2935 return;
2936 if (data[0] != 2)
2937 return; /* Only FT Action Response is supported for now */
2938 sta_addr = data + 1;
2939 target_ap_addr = data + 1 + ETH_ALEN;
2940 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2941 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2942 MACSTR " TargetAP " MACSTR " status %u",
2943 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2944
2945 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2946 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2947 " in FT Action Response", MAC2STR(sta_addr));
2948 return;
2949 }
2950
2951 if (status) {
2952 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2953 "failure (status code %d)", status);
2954 /* TODO: report error to FT code(?) */
2955 return;
2956 }
2957
2958 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2959 len - (1 + 2 * ETH_ALEN + 2), 1,
2960 target_ap_addr, NULL, 0) < 0)
2961 return;
2962
2963 #ifdef CONFIG_SME
2964 {
2965 struct wpa_bss *bss;
2966 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2967 if (bss)
2968 wpa_s->sme.freq = bss->freq;
2969 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2970 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2971 WLAN_AUTH_FT);
2972 }
2973 #endif /* CONFIG_SME */
2974 }
2975 #endif /* CONFIG_IEEE80211R */
2976
2977
2978 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2979 struct unprot_deauth *e)
2980 {
2981 #ifdef CONFIG_IEEE80211W
2982 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2983 "dropped: " MACSTR " -> " MACSTR
2984 " (reason code %u)",
2985 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2986 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2987 #endif /* CONFIG_IEEE80211W */
2988 }
2989
2990
2991 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2992 struct unprot_disassoc *e)
2993 {
2994 #ifdef CONFIG_IEEE80211W
2995 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2996 "dropped: " MACSTR " -> " MACSTR
2997 " (reason code %u)",
2998 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2999 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
3000 #endif /* CONFIG_IEEE80211W */
3001 }
3002
3003
3004 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
3005 u16 reason_code, int locally_generated,
3006 const u8 *ie, size_t ie_len, int deauth)
3007 {
3008 #ifdef CONFIG_AP
3009 if (wpa_s->ap_iface && addr) {
3010 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
3011 return;
3012 }
3013
3014 if (wpa_s->ap_iface) {
3015 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
3016 return;
3017 }
3018 #endif /* CONFIG_AP */
3019
3020 if (!locally_generated)
3021 wpa_s->own_disconnect_req = 0;
3022
3023 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
3024
3025 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
3026 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3027 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
3028 eapol_sm_failed(wpa_s->eapol))) &&
3029 !wpa_s->eap_expected_failure))
3030 wpas_auth_failed(wpa_s, "AUTH_FAILED");
3031
3032 #ifdef CONFIG_P2P
3033 if (deauth && reason_code > 0) {
3034 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
3035 locally_generated) > 0) {
3036 /*
3037 * The interface was removed, so cannot continue
3038 * processing any additional operations after this.
3039 */
3040 return;
3041 }
3042 }
3043 #endif /* CONFIG_P2P */
3044
3045 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
3046 locally_generated);
3047 }
3048
3049
3050 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
3051 struct disassoc_info *info)
3052 {
3053 u16 reason_code = 0;
3054 int locally_generated = 0;
3055 const u8 *addr = NULL;
3056 const u8 *ie = NULL;
3057 size_t ie_len = 0;
3058
3059 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
3060
3061 if (info) {
3062 addr = info->addr;
3063 ie = info->ie;
3064 ie_len = info->ie_len;
3065 reason_code = info->reason_code;
3066 locally_generated = info->locally_generated;
3067 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
3068 locally_generated ? " (locally generated)" : "");
3069 if (addr)
3070 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3071 MAC2STR(addr));
3072 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
3073 ie, ie_len);
3074 }
3075
3076 #ifdef CONFIG_AP
3077 if (wpa_s->ap_iface && info && info->addr) {
3078 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
3079 return;
3080 }
3081
3082 if (wpa_s->ap_iface) {
3083 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
3084 return;
3085 }
3086 #endif /* CONFIG_AP */
3087
3088 #ifdef CONFIG_P2P
3089 if (info) {
3090 wpas_p2p_disassoc_notif(
3091 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
3092 locally_generated);
3093 }
3094 #endif /* CONFIG_P2P */
3095
3096 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3097 sme_event_disassoc(wpa_s, info);
3098
3099 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
3100 ie, ie_len, 0);
3101 }
3102
3103
3104 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
3105 struct deauth_info *info)
3106 {
3107 u16 reason_code = 0;
3108 int locally_generated = 0;
3109 const u8 *addr = NULL;
3110 const u8 *ie = NULL;
3111 size_t ie_len = 0;
3112
3113 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
3114
3115 if (info) {
3116 addr = info->addr;
3117 ie = info->ie;
3118 ie_len = info->ie_len;
3119 reason_code = info->reason_code;
3120 locally_generated = info->locally_generated;
3121 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
3122 reason_code,
3123 locally_generated ? " (locally generated)" : "");
3124 if (addr) {
3125 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3126 MAC2STR(addr));
3127 }
3128 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
3129 ie, ie_len);
3130 }
3131
3132 wpa_reset_ft_completed(wpa_s->wpa);
3133
3134 wpas_event_disconnect(wpa_s, addr, reason_code,
3135 locally_generated, ie, ie_len, 1);
3136 }
3137
3138
3139 static const char * reg_init_str(enum reg_change_initiator init)
3140 {
3141 switch (init) {
3142 case REGDOM_SET_BY_CORE:
3143 return "CORE";
3144 case REGDOM_SET_BY_USER:
3145 return "USER";
3146 case REGDOM_SET_BY_DRIVER:
3147 return "DRIVER";
3148 case REGDOM_SET_BY_COUNTRY_IE:
3149 return "COUNTRY_IE";
3150 case REGDOM_BEACON_HINT:
3151 return "BEACON_HINT";
3152 }
3153 return "?";
3154 }
3155
3156
3157 static const char * reg_type_str(enum reg_type type)
3158 {
3159 switch (type) {
3160 case REGDOM_TYPE_UNKNOWN:
3161 return "UNKNOWN";
3162 case REGDOM_TYPE_COUNTRY:
3163 return "COUNTRY";
3164 case REGDOM_TYPE_WORLD:
3165 return "WORLD";
3166 case REGDOM_TYPE_CUSTOM_WORLD:
3167 return "CUSTOM_WORLD";
3168 case REGDOM_TYPE_INTERSECTION:
3169 return "INTERSECTION";
3170 }
3171 return "?";
3172 }
3173
3174
3175 static void wpa_supplicant_update_channel_list(
3176 struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
3177 {
3178 struct wpa_supplicant *ifs;
3179
3180 /*
3181 * To allow backwards compatibility with higher level layers that
3182 * assumed the REGDOM_CHANGE event is sent over the initially added
3183 * interface. Find the highest parent of this interface and use it to
3184 * send the event.
3185 */
3186 for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
3187 ;
3188
3189 wpa_msg(ifs, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
3190 reg_init_str(info->initiator), reg_type_str(info->type),
3191 info->alpha2[0] ? " alpha2=" : "",
3192 info->alpha2[0] ? info->alpha2 : "");
3193
3194 if (wpa_s->drv_priv == NULL)
3195 return; /* Ignore event during drv initialization */
3196
3197 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
3198 radio_list) {
3199 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
3200 ifs->ifname);
3201 free_hw_features(ifs);
3202 ifs->hw.modes = wpa_drv_get_hw_feature_data(
3203 ifs, &ifs->hw.num_modes, &ifs->hw.flags);
3204 }
3205
3206 /* Restart sched_scan with updated channel list */
3207 if (wpa_s->sched_scanning) {
3208 wpa_dbg(wpa_s, MSG_DEBUG,
3209 "Channel list changed restart sched scan.");
3210 wpa_supplicant_cancel_sched_scan(wpa_s);
3211 wpa_supplicant_req_scan(wpa_s, 0, 0);
3212 }
3213
3214 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
3215 }
3216
3217
3218 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
3219 const u8 *frame, size_t len, int freq,
3220 int rssi)
3221 {
3222 const struct ieee80211_mgmt *mgmt;
3223 const u8 *payload;
3224 size_t plen;
3225 u8 category;
3226
3227 if (len < IEEE80211_HDRLEN + 2)
3228 return;
3229
3230 mgmt = (const struct ieee80211_mgmt *) frame;
3231 payload = frame + IEEE80211_HDRLEN;
3232 category = *payload++;
3233 plen = len - IEEE80211_HDRLEN - 1;
3234
3235 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
3236 " Category=%u DataLen=%d freq=%d MHz",
3237 MAC2STR(mgmt->sa), category, (int) plen, freq);
3238
3239 if (category == WLAN_ACTION_WMM) {
3240 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
3241 return;
3242 }
3243
3244 #ifdef CONFIG_IEEE80211R
3245 if (category == WLAN_ACTION_FT) {
3246 ft_rx_action(wpa_s, payload, plen);
3247 return;
3248 }
3249 #endif /* CONFIG_IEEE80211R */
3250
3251 #ifdef CONFIG_IEEE80211W
3252 #ifdef CONFIG_SME
3253 if (category == WLAN_ACTION_SA_QUERY) {
3254 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
3255 return;
3256 }
3257 #endif /* CONFIG_SME */
3258 #endif /* CONFIG_IEEE80211W */
3259
3260 #ifdef CONFIG_WNM
3261 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
3262 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
3263 return;
3264 }
3265 #endif /* CONFIG_WNM */
3266
3267 #ifdef CONFIG_GAS
3268 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
3269 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
3270 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
3271 mgmt->u.action.category,
3272 payload, plen, freq) == 0)
3273 return;
3274 #endif /* CONFIG_GAS */
3275
3276 #ifdef CONFIG_TDLS
3277 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
3278 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
3279 wpa_dbg(wpa_s, MSG_DEBUG,
3280 "TDLS: Received Discovery Response from " MACSTR,
3281 MAC2STR(mgmt->sa));
3282 return;
3283 }
3284 #endif /* CONFIG_TDLS */
3285
3286 #ifdef CONFIG_INTERWORKING
3287 if (category == WLAN_ACTION_QOS && plen >= 1 &&
3288 payload[0] == QOS_QOS_MAP_CONFIG) {
3289 const u8 *pos = payload + 1;
3290 size_t qlen = plen - 1;
3291 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
3292 MACSTR, MAC2STR(mgmt->sa));
3293 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
3294 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
3295 pos[1] <= qlen - 2 && pos[1] >= 16)
3296 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
3297 return;
3298 }
3299 #endif /* CONFIG_INTERWORKING */
3300
3301 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3302 payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
3303 wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
3304 payload + 1,
3305 plen - 1);
3306 return;
3307 }
3308
3309 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3310 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
3311 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
3312 return;
3313 }
3314
3315 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3316 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
3317 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
3318 payload + 1, plen - 1,
3319 rssi);
3320 return;
3321 }
3322
3323 #ifdef CONFIG_FST
3324 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
3325 fst_rx_action(wpa_s->fst, mgmt, len);
3326 return;
3327 }
3328 #endif /* CONFIG_FST */
3329
3330 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
3331 category, payload, plen, freq);
3332 if (wpa_s->ifmsh)
3333 mesh_mpm_action_rx(wpa_s, mgmt, len);
3334 }
3335
3336
3337 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
3338 union wpa_event_data *event)
3339 {
3340 struct wpa_freq_range_list *list;
3341 char *str = NULL;
3342
3343 list = &event->freq_range;
3344
3345 if (list->num)
3346 str = freq_range_list_str(list);
3347 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
3348 str ? str : "");
3349
3350 #ifdef CONFIG_P2P
3351 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
3352 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
3353 __func__);
3354 } else {
3355 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
3356
3357 /*
3358 * The update channel flow will also take care of moving a GO
3359 * from the unsafe frequency if needed.
3360 */
3361 wpas_p2p_update_channel_list(wpa_s,
3362 WPAS_P2P_CHANNEL_UPDATE_AVOID);
3363 }
3364 #endif /* CONFIG_P2P */
3365
3366 os_free(str);
3367 }
3368
3369
3370 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
3371 union wpa_event_data *data)
3372 {
3373 wpa_dbg(wpa_s, MSG_DEBUG,
3374 "Connection authorized by device, previous state %d",
3375 wpa_s->wpa_state);
3376 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
3377 wpa_supplicant_cancel_auth_timeout(wpa_s);
3378 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3379 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3380 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
3381 }
3382 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
3383 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
3384 data->assoc_info.ptk_kck_len,
3385 data->assoc_info.ptk_kek,
3386 data->assoc_info.ptk_kek_len);
3387 }
3388
3389
3390 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
3391 union wpa_event_data *data)
3392 {
3393 struct wpa_supplicant *wpa_s = ctx;
3394 int resched;
3395
3396 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
3397 event != EVENT_INTERFACE_ENABLED &&
3398 event != EVENT_INTERFACE_STATUS &&
3399 event != EVENT_SCAN_RESULTS &&
3400 event != EVENT_SCHED_SCAN_STOPPED) {
3401 wpa_dbg(wpa_s, MSG_DEBUG,
3402 "Ignore event %s (%d) while interface is disabled",
3403 event_to_string(event), event);
3404 return;
3405 }
3406
3407 #ifndef CONFIG_NO_STDOUT_DEBUG
3408 {
3409 int level = MSG_DEBUG;
3410
3411 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
3412 const struct ieee80211_hdr *hdr;
3413 u16 fc;
3414 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
3415 fc = le_to_host16(hdr->frame_control);
3416 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3417 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
3418 level = MSG_EXCESSIVE;
3419 }
3420
3421 wpa_dbg(wpa_s, level, "Event %s (%d) received",
3422 event_to_string(event), event);
3423 }
3424 #endif /* CONFIG_NO_STDOUT_DEBUG */
3425
3426 switch (event) {
3427 case EVENT_AUTH:
3428 #ifdef CONFIG_FST
3429 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
3430 data->auth.ies_len))
3431 wpa_printf(MSG_DEBUG,
3432 "FST: MB IEs updated from auth IE");
3433 #endif /* CONFIG_FST */
3434 sme_event_auth(wpa_s, data);
3435 break;
3436 case EVENT_ASSOC:
3437 wpa_supplicant_event_assoc(wpa_s, data);
3438 if (data && data->assoc_info.authorized)
3439 wpa_supplicant_event_assoc_auth(wpa_s, data);
3440 if (data) {
3441 wpa_msg(wpa_s, MSG_INFO,
3442 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
3443 data->assoc_info.subnet_status);
3444 }
3445 break;
3446 case EVENT_DISASSOC:
3447 wpas_event_disassoc(wpa_s,
3448 data ? &data->disassoc_info : NULL);
3449 break;
3450 case EVENT_DEAUTH:
3451 wpas_event_deauth(wpa_s,
3452 data ? &data->deauth_info : NULL);
3453 break;
3454 case EVENT_MICHAEL_MIC_FAILURE:
3455 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3456 break;
3457 #ifndef CONFIG_NO_SCAN_PROCESSING
3458 case EVENT_SCAN_STARTED:
3459 if (wpa_s->own_scan_requested ||
3460 (data && !data->scan_info.external_scan)) {
3461 struct os_reltime diff;
3462
3463 os_get_reltime(&wpa_s->scan_start_time);
3464 os_reltime_sub(&wpa_s->scan_start_time,
3465 &wpa_s->scan_trigger_time, &diff);
3466 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3467 diff.sec, diff.usec);
3468 wpa_s->own_scan_requested = 0;
3469 wpa_s->own_scan_running = 1;
3470 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3471 wpa_s->manual_scan_use_id) {
3472 wpa_msg_ctrl(wpa_s, MSG_INFO,
3473 WPA_EVENT_SCAN_STARTED "id=%u",
3474 wpa_s->manual_scan_id);
3475 } else {
3476 wpa_msg_ctrl(wpa_s, MSG_INFO,
3477 WPA_EVENT_SCAN_STARTED);
3478 }
3479 } else {
3480 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3481 wpa_s->radio->external_scan_running = 1;
3482 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
3483 }
3484 break;
3485 case EVENT_SCAN_RESULTS:
3486 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3487 wpa_s->scan_res_handler = NULL;
3488 wpa_s->own_scan_running = 0;
3489 wpa_s->radio->external_scan_running = 0;
3490 wpa_s->last_scan_req = NORMAL_SCAN_REQ;
3491 break;
3492 }
3493
3494 if (!(data && data->scan_info.external_scan) &&
3495 os_reltime_initialized(&wpa_s->scan_start_time)) {
3496 struct os_reltime now, diff;
3497 os_get_reltime(&now);
3498 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3499 wpa_s->scan_start_time.sec = 0;
3500 wpa_s->scan_start_time.usec = 0;
3501 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3502 diff.sec, diff.usec);
3503 }
3504 if (wpa_supplicant_event_scan_results(wpa_s, data))
3505 break; /* interface may have been removed */
3506 if (!(data && data->scan_info.external_scan))
3507 wpa_s->own_scan_running = 0;
3508 if (data && data->scan_info.nl_scan_event)
3509 wpa_s->radio->external_scan_running = 0;
3510 radio_work_check_next(wpa_s);
3511 break;
3512 #endif /* CONFIG_NO_SCAN_PROCESSING */
3513 case EVENT_ASSOCINFO:
3514 wpa_supplicant_event_associnfo(wpa_s, data);
3515 break;
3516 case EVENT_INTERFACE_STATUS:
3517 wpa_supplicant_event_interface_status(wpa_s, data);
3518 break;
3519 case EVENT_PMKID_CANDIDATE:
3520 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3521 break;
3522 #ifdef CONFIG_PEERKEY
3523 case EVENT_STKSTART:
3524 wpa_supplicant_event_stkstart(wpa_s, data);
3525 break;
3526 #endif /* CONFIG_PEERKEY */
3527 #ifdef CONFIG_TDLS
3528 case EVENT_TDLS:
3529 wpa_supplicant_event_tdls(wpa_s, data);
3530 break;
3531 #endif /* CONFIG_TDLS */
3532 #ifdef CONFIG_WNM
3533 case EVENT_WNM:
3534 wpa_supplicant_event_wnm(wpa_s, data);
3535 break;
3536 #endif /* CONFIG_WNM */
3537 #ifdef CONFIG_IEEE80211R
3538 case EVENT_FT_RESPONSE:
3539 wpa_supplicant_event_ft_response(wpa_s, data);
3540 break;
3541 #endif /* CONFIG_IEEE80211R */
3542 #ifdef CONFIG_IBSS_RSN
3543 case EVENT_IBSS_RSN_START:
3544 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3545 break;
3546 #endif /* CONFIG_IBSS_RSN */
3547 case EVENT_ASSOC_REJECT:
3548 if (data->assoc_reject.bssid)
3549 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3550 "bssid=" MACSTR " status_code=%u%s",
3551 MAC2STR(data->assoc_reject.bssid),
3552 data->assoc_reject.status_code,
3553 data->assoc_reject.timed_out ? " timeout" : "");
3554 else
3555 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3556 "status_code=%u%s",
3557 data->assoc_reject.status_code,
3558 data->assoc_reject.timed_out ? " timeout" : "");
3559 wpa_s->assoc_status_code = data->assoc_reject.status_code;
3560 wpas_notify_assoc_status_code(wpa_s);
3561 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3562 sme_event_assoc_reject(wpa_s, data);
3563 else {
3564 const u8 *bssid = data->assoc_reject.bssid;
3565 if (bssid == NULL || is_zero_ether_addr(bssid))
3566 bssid = wpa_s->pending_bssid;
3567 wpas_connection_failed(wpa_s, bssid);
3568 wpa_supplicant_mark_disassoc(wpa_s);
3569 }
3570 break;
3571 case EVENT_AUTH_TIMED_OUT:
3572 /* It is possible to get this event from earlier connection */
3573 if (wpa_s->current_ssid &&
3574 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3575 wpa_dbg(wpa_s, MSG_DEBUG,
3576 "Ignore AUTH_TIMED_OUT in mesh configuration");
3577 break;
3578 }
3579 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3580 sme_event_auth_timed_out(wpa_s, data);
3581 break;
3582 case EVENT_ASSOC_TIMED_OUT:
3583 /* It is possible to get this event from earlier connection */
3584 if (wpa_s->current_ssid &&
3585 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3586 wpa_dbg(wpa_s, MSG_DEBUG,
3587 "Ignore ASSOC_TIMED_OUT in mesh configuration");
3588 break;
3589 }
3590 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3591 sme_event_assoc_timed_out(wpa_s, data);
3592 break;
3593 case EVENT_TX_STATUS:
3594 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3595 " type=%d stype=%d",
3596 MAC2STR(data->tx_status.dst),
3597 data->tx_status.type, data->tx_status.stype);
3598 #ifdef CONFIG_AP
3599 if (wpa_s->ap_iface == NULL) {
3600 #ifdef CONFIG_OFFCHANNEL
3601 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3602 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
3603 offchannel_send_action_tx_status(
3604 wpa_s, data->tx_status.dst,
3605 data->tx_status.data,
3606 data->tx_status.data_len,
3607 data->tx_status.ack ?
3608 OFFCHANNEL_SEND_ACTION_SUCCESS :
3609 OFFCHANNEL_SEND_ACTION_NO_ACK);
3610 #endif /* CONFIG_OFFCHANNEL */
3611 break;
3612 }
3613 #endif /* CONFIG_AP */
3614 #ifdef CONFIG_OFFCHANNEL
3615 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3616 MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
3617 /*
3618 * Catch TX status events for Action frames we sent via group
3619 * interface in GO mode, or via standalone AP interface.
3620 * Note, wpa_s->p2pdev will be the same as wpa_s->parent,
3621 * except when the primary interface is used as a GO interface
3622 * (for drivers which do not have group interface concurrency)
3623 */
3624 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3625 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3626 os_memcmp(wpa_s->p2pdev->pending_action_dst,
3627 data->tx_status.dst, ETH_ALEN) == 0) {
3628 offchannel_send_action_tx_status(
3629 wpa_s->p2pdev, data->tx_status.dst,
3630 data->tx_status.data,
3631 data->tx_status.data_len,
3632 data->tx_status.ack ?
3633 OFFCHANNEL_SEND_ACTION_SUCCESS :
3634 OFFCHANNEL_SEND_ACTION_NO_ACK);
3635 break;
3636 }
3637 #endif /* CONFIG_OFFCHANNEL */
3638 #ifdef CONFIG_AP
3639 switch (data->tx_status.type) {
3640 case WLAN_FC_TYPE_MGMT:
3641 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3642 data->tx_status.data_len,
3643 data->tx_status.stype,
3644 data->tx_status.ack);
3645 break;
3646 case WLAN_FC_TYPE_DATA:
3647 ap_tx_status(wpa_s, data->tx_status.dst,
3648 data->tx_status.data,
3649 data->tx_status.data_len,
3650 data->tx_status.ack);
3651 break;
3652 }
3653 #endif /* CONFIG_AP */
3654 break;
3655 #ifdef CONFIG_AP
3656 case EVENT_EAPOL_TX_STATUS:
3657 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3658 data->eapol_tx_status.data,
3659 data->eapol_tx_status.data_len,
3660 data->eapol_tx_status.ack);
3661 break;
3662 case EVENT_DRIVER_CLIENT_POLL_OK:
3663 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3664 break;
3665 case EVENT_RX_FROM_UNKNOWN:
3666 if (wpa_s->ap_iface == NULL)
3667 break;
3668 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3669 data->rx_from_unknown.wds);
3670 break;
3671 case EVENT_CH_SWITCH:
3672 if (!data || !wpa_s->current_ssid)
3673 break;
3674
3675 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CHANNEL_SWITCH
3676 "freq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
3677 data->ch_switch.freq,
3678 data->ch_switch.ht_enabled,
3679 data->ch_switch.ch_offset,
3680 channel_width_to_string(data->ch_switch.ch_width),
3681 data->ch_switch.cf1,
3682 data->ch_switch.cf2);
3683
3684 wpa_s->assoc_freq = data->ch_switch.freq;
3685 wpa_s->current_ssid->frequency = data->ch_switch.freq;
3686
3687 if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
3688 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
3689 wpa_s->current_ssid->mode ==
3690 WPAS_MODE_P2P_GROUP_FORMATION) {
3691 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3692 data->ch_switch.ht_enabled,
3693 data->ch_switch.ch_offset,
3694 data->ch_switch.ch_width,
3695 data->ch_switch.cf1,
3696 data->ch_switch.cf2);
3697 }
3698
3699 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
3700 break;
3701 #ifdef NEED_AP_MLME
3702 case EVENT_DFS_RADAR_DETECTED:
3703 if (data)
3704 wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event);
3705 break;
3706 case EVENT_DFS_CAC_STARTED:
3707 if (data)
3708 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
3709 break;
3710 case EVENT_DFS_CAC_FINISHED:
3711 if (data)
3712 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
3713 break;
3714 case EVENT_DFS_CAC_ABORTED:
3715 if (data)
3716 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
3717 break;
3718 case EVENT_DFS_NOP_FINISHED:
3719 if (data)
3720 wpas_event_dfs_cac_nop_finished(wpa_s,
3721 &data->dfs_event);
3722 break;
3723 #endif /* NEED_AP_MLME */
3724 #endif /* CONFIG_AP */
3725 case EVENT_RX_MGMT: {
3726 u16 fc, stype;
3727 const struct ieee80211_mgmt *mgmt;
3728
3729 #ifdef CONFIG_TESTING_OPTIONS
3730 if (wpa_s->ext_mgmt_frame_handling) {
3731 struct rx_mgmt *rx = &data->rx_mgmt;
3732 size_t hex_len = 2 * rx->frame_len + 1;
3733 char *hex = os_malloc(hex_len);
3734 if (hex) {
3735 wpa_snprintf_hex(hex, hex_len,
3736 rx->frame, rx->frame_len);
3737 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3738 rx->freq, rx->datarate, rx->ssi_signal,
3739 hex);
3740 os_free(hex);
3741 }
3742 break;
3743 }
3744 #endif /* CONFIG_TESTING_OPTIONS */
3745
3746 mgmt = (const struct ieee80211_mgmt *)
3747 data->rx_mgmt.frame;
3748 fc = le_to_host16(mgmt->frame_control);
3749 stype = WLAN_FC_GET_STYPE(fc);
3750
3751 #ifdef CONFIG_AP
3752 if (wpa_s->ap_iface == NULL) {
3753 #endif /* CONFIG_AP */
3754 #ifdef CONFIG_P2P
3755 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3756 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
3757 const u8 *src = mgmt->sa;
3758 const u8 *ie;
3759 size_t ie_len;
3760
3761 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
3762 ie_len = data->rx_mgmt.frame_len -
3763 IEEE80211_HDRLEN;
3764 wpas_p2p_probe_req_rx(
3765 wpa_s, src, mgmt->da,
3766 mgmt->bssid, ie, ie_len,
3767 data->rx_mgmt.freq,
3768 data->rx_mgmt.ssi_signal);
3769 break;
3770 }
3771 #endif /* CONFIG_P2P */
3772 #ifdef CONFIG_IBSS_RSN
3773 if (wpa_s->current_ssid &&
3774 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3775 stype == WLAN_FC_STYPE_AUTH &&
3776 data->rx_mgmt.frame_len >= 30) {
3777 wpa_supplicant_event_ibss_auth(wpa_s, data);
3778 break;
3779 }
3780 #endif /* CONFIG_IBSS_RSN */
3781
3782 if (stype == WLAN_FC_STYPE_ACTION) {
3783 wpas_event_rx_mgmt_action(
3784 wpa_s, data->rx_mgmt.frame,
3785 data->rx_mgmt.frame_len,
3786 data->rx_mgmt.freq,
3787 data->rx_mgmt.ssi_signal);
3788 break;
3789 }
3790
3791 if (wpa_s->ifmsh) {
3792 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3793 break;
3794 }
3795
3796 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3797 "management frame in non-AP mode");
3798 break;
3799 #ifdef CONFIG_AP
3800 }
3801
3802 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3803 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
3804 const u8 *ie;
3805 size_t ie_len;
3806
3807 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
3808 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
3809
3810 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3811 mgmt->bssid, ie, ie_len,
3812 data->rx_mgmt.ssi_signal);
3813 }
3814
3815 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
3816 #endif /* CONFIG_AP */
3817 break;
3818 }
3819 case EVENT_RX_PROBE_REQ:
3820 if (data->rx_probe_req.sa == NULL ||
3821 data->rx_probe_req.ie == NULL)
3822 break;
3823 #ifdef CONFIG_AP
3824 if (wpa_s->ap_iface) {
3825 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3826 data->rx_probe_req.sa,
3827 data->rx_probe_req.da,
3828 data->rx_probe_req.bssid,
3829 data->rx_probe_req.ie,
3830 data->rx_probe_req.ie_len,
3831 data->rx_probe_req.ssi_signal);
3832 break;
3833 }
3834 #endif /* CONFIG_AP */
3835 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
3836 data->rx_probe_req.da,
3837 data->rx_probe_req.bssid,
3838 data->rx_probe_req.ie,
3839 data->rx_probe_req.ie_len,
3840 0,
3841 data->rx_probe_req.ssi_signal);
3842 break;
3843 case EVENT_REMAIN_ON_CHANNEL:
3844 #ifdef CONFIG_OFFCHANNEL
3845 offchannel_remain_on_channel_cb(
3846 wpa_s, data->remain_on_channel.freq,
3847 data->remain_on_channel.duration);
3848 #endif /* CONFIG_OFFCHANNEL */
3849 wpas_p2p_remain_on_channel_cb(
3850 wpa_s, data->remain_on_channel.freq,
3851 data->remain_on_channel.duration);
3852 break;
3853 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
3854 #ifdef CONFIG_OFFCHANNEL
3855 offchannel_cancel_remain_on_channel_cb(
3856 wpa_s, data->remain_on_channel.freq);
3857 #endif /* CONFIG_OFFCHANNEL */
3858 wpas_p2p_cancel_remain_on_channel_cb(
3859 wpa_s, data->remain_on_channel.freq);
3860 break;
3861 case EVENT_EAPOL_RX:
3862 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3863 data->eapol_rx.data,
3864 data->eapol_rx.data_len);
3865 break;
3866 case EVENT_SIGNAL_CHANGE:
3867 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3868 "above=%d signal=%d noise=%d txrate=%d",
3869 data->signal_change.above_threshold,
3870 data->signal_change.current_signal,
3871 data->signal_change.current_noise,
3872 data->signal_change.current_txrate);
3873 wpa_bss_update_level(wpa_s->current_bss,
3874 data->signal_change.current_signal);
3875 bgscan_notify_signal_change(
3876 wpa_s, data->signal_change.above_threshold,
3877 data->signal_change.current_signal,
3878 data->signal_change.current_noise,
3879 data->signal_change.current_txrate);
3880 break;
3881 case EVENT_INTERFACE_ENABLED:
3882 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
3883 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3884 wpa_supplicant_update_mac_addr(wpa_s);
3885 if (wpa_s->p2p_mgmt) {
3886 wpa_supplicant_set_state(wpa_s,
3887 WPA_DISCONNECTED);
3888 break;
3889 }
3890
3891 #ifdef CONFIG_AP
3892 if (!wpa_s->ap_iface) {
3893 wpa_supplicant_set_state(wpa_s,
3894 WPA_DISCONNECTED);
3895 wpa_s->scan_req = NORMAL_SCAN_REQ;
3896 wpa_supplicant_req_scan(wpa_s, 0, 0);
3897 } else
3898 wpa_supplicant_set_state(wpa_s,
3899 WPA_COMPLETED);
3900 #else /* CONFIG_AP */
3901 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3902 wpa_supplicant_req_scan(wpa_s, 0, 0);
3903 #endif /* CONFIG_AP */
3904 }
3905 break;
3906 case EVENT_INTERFACE_DISABLED:
3907 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
3908 #ifdef CONFIG_P2P
3909 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3910 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3911 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
3912 /*
3913 * Mark interface disabled if this happens to end up not
3914 * being removed as a separate P2P group interface.
3915 */
3916 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3917 /*
3918 * The interface was externally disabled. Remove
3919 * it assuming an external entity will start a
3920 * new session if needed.
3921 */
3922 if (wpa_s->current_ssid &&
3923 wpa_s->current_ssid->p2p_group)
3924 wpas_p2p_interface_unavailable(wpa_s);
3925 else
3926 wpas_p2p_disconnect(wpa_s);
3927 /*
3928 * wpa_s instance may have been freed, so must not use
3929 * it here anymore.
3930 */
3931 break;
3932 }
3933 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3934 p2p_in_progress(wpa_s->global->p2p) > 1) {
3935 /* This radio work will be cancelled, so clear P2P
3936 * state as well.
3937 */
3938 p2p_stop_find(wpa_s->global->p2p);
3939 }
3940 #endif /* CONFIG_P2P */
3941
3942 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3943 /*
3944 * Indicate disconnection to keep ctrl_iface events
3945 * consistent.
3946 */
3947 wpa_supplicant_event_disassoc(
3948 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3949 }
3950 wpa_supplicant_mark_disassoc(wpa_s);
3951 radio_remove_works(wpa_s, NULL, 0);
3952
3953 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3954 break;
3955 case EVENT_CHANNEL_LIST_CHANGED:
3956 wpa_supplicant_update_channel_list(
3957 wpa_s, &data->channel_list_changed);
3958 break;
3959 case EVENT_INTERFACE_UNAVAILABLE:
3960 wpas_p2p_interface_unavailable(wpa_s);
3961 break;
3962 case EVENT_BEST_CHANNEL:
3963 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3964 "(%d %d %d)",
3965 data->best_chan.freq_24, data->best_chan.freq_5,
3966 data->best_chan.freq_overall);
3967 wpa_s->best_24_freq = data->best_chan.freq_24;
3968 wpa_s->best_5_freq = data->best_chan.freq_5;
3969 wpa_s->best_overall_freq = data->best_chan.freq_overall;
3970 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3971 data->best_chan.freq_5,
3972 data->best_chan.freq_overall);
3973 break;
3974 case EVENT_UNPROT_DEAUTH:
3975 wpa_supplicant_event_unprot_deauth(wpa_s,
3976 &data->unprot_deauth);
3977 break;
3978 case EVENT_UNPROT_DISASSOC:
3979 wpa_supplicant_event_unprot_disassoc(wpa_s,
3980 &data->unprot_disassoc);
3981 break;
3982 case EVENT_STATION_LOW_ACK:
3983 #ifdef CONFIG_AP
3984 if (wpa_s->ap_iface && data)
3985 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3986 data->low_ack.addr);
3987 #endif /* CONFIG_AP */
3988 #ifdef CONFIG_TDLS
3989 if (data)
3990 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
3991 data->low_ack.addr);
3992 #endif /* CONFIG_TDLS */
3993 break;
3994 case EVENT_IBSS_PEER_LOST:
3995 #ifdef CONFIG_IBSS_RSN
3996 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
3997 #endif /* CONFIG_IBSS_RSN */
3998 break;
3999 case EVENT_DRIVER_GTK_REKEY:
4000 if (os_memcmp(data->driver_gtk_rekey.bssid,
4001 wpa_s->bssid, ETH_ALEN))
4002 break;
4003 if (!wpa_s->wpa)
4004 break;
4005 wpa_sm_update_replay_ctr(wpa_s->wpa,
4006 data->driver_gtk_rekey.replay_ctr);
4007 break;
4008 case EVENT_SCHED_SCAN_STOPPED:
4009 wpa_s->sched_scanning = 0;
4010 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
4011 wpa_supplicant_notify_scanning(wpa_s, 0);
4012
4013 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
4014 break;
4015
4016 /*
4017 * Start a new sched scan to continue searching for more SSIDs
4018 * either if timed out or PNO schedule scan is pending.
4019 */
4020 if (wpa_s->sched_scan_timed_out) {
4021 wpa_supplicant_req_sched_scan(wpa_s);
4022 } else if (wpa_s->pno_sched_pending) {
4023 wpa_s->pno_sched_pending = 0;
4024 wpas_start_pno(wpa_s);
4025 } else if (resched) {
4026 wpa_supplicant_req_scan(wpa_s, 0, 0);
4027 }
4028
4029 break;
4030 case EVENT_WPS_BUTTON_PUSHED:
4031 #ifdef CONFIG_WPS
4032 wpas_wps_start_pbc(wpa_s, NULL, 0);
4033 #endif /* CONFIG_WPS */
4034 break;
4035 case EVENT_AVOID_FREQUENCIES:
4036 wpa_supplicant_notify_avoid_freq(wpa_s, data);
4037 break;
4038 case EVENT_CONNECT_FAILED_REASON:
4039 #ifdef CONFIG_AP
4040 if (!wpa_s->ap_iface || !data)
4041 break;
4042 hostapd_event_connect_failed_reason(
4043 wpa_s->ap_iface->bss[0],
4044 data->connect_failed_reason.addr,
4045 data->connect_failed_reason.code);
4046 #endif /* CONFIG_AP */
4047 break;
4048 case EVENT_NEW_PEER_CANDIDATE:
4049 #ifdef CONFIG_MESH
4050 if (!wpa_s->ifmsh || !data)
4051 break;
4052 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
4053 data->mesh_peer.ies,
4054 data->mesh_peer.ie_len);
4055 #endif /* CONFIG_MESH */
4056 break;
4057 case EVENT_SURVEY:
4058 #ifdef CONFIG_AP
4059 if (!wpa_s->ap_iface)
4060 break;
4061 hostapd_event_get_survey(wpa_s->ap_iface,
4062 &data->survey_results);
4063 #endif /* CONFIG_AP */
4064 break;
4065 case EVENT_ACS_CHANNEL_SELECTED:
4066 #ifdef CONFIG_ACS
4067 if (!wpa_s->ap_iface)
4068 break;
4069 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
4070 &data->acs_selected_channels);
4071 #endif /* CONFIG_ACS */
4072 break;
4073 case EVENT_P2P_LO_STOP:
4074 #ifdef CONFIG_P2P
4075 wpa_s->p2p_lo_started = 0;
4076 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP
4077 P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d",
4078 data->p2p_lo_stop.reason_code);
4079 #endif /* CONFIG_P2P */
4080 break;
4081 default:
4082 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
4083 break;
4084 }
4085 }
4086
4087
4088 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
4089 union wpa_event_data *data)
4090 {
4091 struct wpa_supplicant *wpa_s;
4092
4093 if (event != EVENT_INTERFACE_STATUS)
4094 return;
4095
4096 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
4097 if (wpa_s && wpa_s->driver->get_ifindex) {
4098 unsigned int ifindex;
4099
4100 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
4101 if (ifindex != data->interface_status.ifindex) {
4102 wpa_dbg(wpa_s, MSG_DEBUG,
4103 "interface status ifindex %d mismatch (%d)",
4104 ifindex, data->interface_status.ifindex);
4105 return;
4106 }
4107 }
4108 #ifdef CONFIG_MATCH_IFACE
4109 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
4110 struct wpa_interface *wpa_i;
4111
4112 wpa_i = wpa_supplicant_match_iface(
4113 ctx, data->interface_status.ifname);
4114 if (!wpa_i)
4115 return;
4116 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
4117 os_free(wpa_i);
4118 if (wpa_s)
4119 wpa_s->matched = 1;
4120 }
4121 #endif /* CONFIG_MATCH_IFACE */
4122
4123 if (wpa_s)
4124 wpa_supplicant_event(wpa_s, event, data);
4125 }
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