]> git.ipfire.org Git - thirdparty/hostap.git/blob - wpa_supplicant/events.c
projects / thirdparty / hostap.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Fix EAP state machine reset with offloaded roaming and authorization
[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 #ifdef CONFIG_MESH
1037 if (ssid->mode == IEEE80211_MODE_MESH && ssid->frequency > 0 &&
1038 ssid->frequency != bss->freq) {
1039 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not allowed (mesh)");
1040 continue;
1041 }
1042 #endif /* CONFIG_MESH */
1043
1044 if (!rate_match(wpa_s, bss)) {
1045 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
1046 "not match");
1047 continue;
1048 }
1049
1050 #ifdef CONFIG_P2P
1051 if (ssid->p2p_group &&
1052 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1053 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1054 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
1055 continue;
1056 }
1057
1058 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1059 struct wpabuf *p2p_ie;
1060 u8 dev_addr[ETH_ALEN];
1061
1062 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1063 if (ie == NULL) {
1064 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element");
1065 continue;
1066 }
1067 p2p_ie = wpa_bss_get_vendor_ie_multi(
1068 bss, P2P_IE_VENDOR_TYPE);
1069 if (p2p_ie == NULL) {
1070 wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element");
1071 continue;
1072 }
1073
1074 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
1075 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
1076 ETH_ALEN) != 0) {
1077 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element");
1078 wpabuf_free(p2p_ie);
1079 continue;
1080 }
1081 wpabuf_free(p2p_ie);
1082 }
1083
1084 /*
1085 * TODO: skip the AP if its P2P IE has Group Formation
1086 * bit set in the P2P Group Capability Bitmap and we
1087 * are not in Group Formation with that device.
1088 */
1089 #endif /* CONFIG_P2P */
1090
1091 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time))
1092 {
1093 struct os_reltime diff;
1094
1095 os_reltime_sub(&wpa_s->scan_min_time,
1096 &bss->last_update, &diff);
1097 wpa_dbg(wpa_s, MSG_DEBUG,
1098 " skip - scan result not recent enough (%u.%06u seconds too old)",
1099 (unsigned int) diff.sec,
1100 (unsigned int) diff.usec);
1101 continue;
1102 }
1103 #ifdef CONFIG_MBO
1104 assoc_disallow = wpas_mbo_get_bss_attr(
1105 bss, MBO_ATTR_ID_ASSOC_DISALLOW);
1106 if (assoc_disallow && assoc_disallow[1] >= 1) {
1107 wpa_dbg(wpa_s, MSG_DEBUG,
1108 " skip - MBO association disallowed (reason %u)",
1109 assoc_disallow[2]);
1110 continue;
1111 }
1112
1113 if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) {
1114 wpa_dbg(wpa_s, MSG_DEBUG,
1115 " skip - MBO retry delay has not passed yet");
1116 continue;
1117 }
1118 #endif /* CONFIG_MBO */
1119
1120 /* Matching configuration found */
1121 return ssid;
1122 }
1123
1124 /* No matching configuration found */
1125 return NULL;
1126 }
1127
1128
1129 static struct wpa_bss *
1130 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1131 struct wpa_ssid *group,
1132 struct wpa_ssid **selected_ssid,
1133 int only_first_ssid)
1134 {
1135 unsigned int i;
1136
1137 if (only_first_ssid)
1138 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1139 group->id);
1140 else
1141 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1142 group->priority);
1143
1144 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1145 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1146 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1147 only_first_ssid);
1148 if (!*selected_ssid)
1149 continue;
1150 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
1151 " ssid='%s'",
1152 MAC2STR(bss->bssid),
1153 wpa_ssid_txt(bss->ssid, bss->ssid_len));
1154 return bss;
1155 }
1156
1157 return NULL;
1158 }
1159
1160
1161 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1162 struct wpa_ssid **selected_ssid)
1163 {
1164 struct wpa_bss *selected = NULL;
1165 int prio;
1166 struct wpa_ssid *next_ssid = NULL;
1167 struct wpa_ssid *ssid;
1168
1169 if (wpa_s->last_scan_res == NULL ||
1170 wpa_s->last_scan_res_used == 0)
1171 return NULL; /* no scan results from last update */
1172
1173 if (wpa_s->next_ssid) {
1174 /* check that next_ssid is still valid */
1175 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1176 if (ssid == wpa_s->next_ssid)
1177 break;
1178 }
1179 next_ssid = ssid;
1180 wpa_s->next_ssid = NULL;
1181 }
1182
1183 while (selected == NULL) {
1184 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1185 if (next_ssid && next_ssid->priority ==
1186 wpa_s->conf->pssid[prio]->priority) {
1187 selected = wpa_supplicant_select_bss(
1188 wpa_s, next_ssid, selected_ssid, 1);
1189 if (selected)
1190 break;
1191 }
1192 selected = wpa_supplicant_select_bss(
1193 wpa_s, wpa_s->conf->pssid[prio],
1194 selected_ssid, 0);
1195 if (selected)
1196 break;
1197 }
1198
1199 if (selected == NULL && wpa_s->blacklist &&
1200 !wpa_s->countermeasures) {
1201 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1202 "blacklist and try again");
1203 wpa_blacklist_clear(wpa_s);
1204 wpa_s->blacklist_cleared++;
1205 } else if (selected == NULL)
1206 break;
1207 }
1208
1209 ssid = *selected_ssid;
1210 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1211 !ssid->passphrase && !ssid->ext_psk) {
1212 const char *field_name, *txt = NULL;
1213
1214 wpa_dbg(wpa_s, MSG_DEBUG,
1215 "PSK/passphrase not yet available for the selected network");
1216
1217 wpas_notify_network_request(wpa_s, ssid,
1218 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1219
1220 field_name = wpa_supplicant_ctrl_req_to_string(
1221 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1222 if (field_name == NULL)
1223 return NULL;
1224
1225 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1226
1227 selected = NULL;
1228 }
1229
1230 return selected;
1231 }
1232
1233
1234 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1235 int timeout_sec, int timeout_usec)
1236 {
1237 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1238 /*
1239 * No networks are enabled; short-circuit request so
1240 * we don't wait timeout seconds before transitioning
1241 * to INACTIVE state.
1242 */
1243 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1244 "since there are no enabled networks");
1245 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1246 return;
1247 }
1248
1249 wpa_s->scan_for_connection = 1;
1250 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1251 }
1252
1253
1254 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1255 struct wpa_bss *selected,
1256 struct wpa_ssid *ssid)
1257 {
1258 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1259 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1260 "PBC session overlap");
1261 wpas_notify_wps_event_pbc_overlap(wpa_s);
1262 #ifdef CONFIG_P2P
1263 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1264 wpa_s->p2p_in_provisioning) {
1265 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1266 wpa_s, NULL);
1267 return -1;
1268 }
1269 #endif /* CONFIG_P2P */
1270
1271 #ifdef CONFIG_WPS
1272 wpas_wps_pbc_overlap(wpa_s);
1273 wpas_wps_cancel(wpa_s);
1274 #endif /* CONFIG_WPS */
1275 return -1;
1276 }
1277
1278 wpa_msg(wpa_s, MSG_DEBUG,
1279 "Considering connect request: reassociate: %d selected: "
1280 MACSTR " bssid: " MACSTR " pending: " MACSTR
1281 " wpa_state: %s ssid=%p current_ssid=%p",
1282 wpa_s->reassociate, MAC2STR(selected->bssid),
1283 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1284 wpa_supplicant_state_txt(wpa_s->wpa_state),
1285 ssid, wpa_s->current_ssid);
1286
1287 /*
1288 * Do not trigger new association unless the BSSID has changed or if
1289 * reassociation is requested. If we are in process of associating with
1290 * the selected BSSID, do not trigger new attempt.
1291 */
1292 if (wpa_s->reassociate ||
1293 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1294 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1295 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1296 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1297 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1298 0) ||
1299 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1300 ssid != wpa_s->current_ssid)))) {
1301 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1302 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1303 return 0;
1304 }
1305 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1306 MAC2STR(selected->bssid));
1307 wpa_supplicant_associate(wpa_s, selected, ssid);
1308 } else {
1309 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1310 "connect with the selected AP");
1311 }
1312
1313 return 0;
1314 }
1315
1316
1317 static struct wpa_ssid *
1318 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1319 {
1320 int prio;
1321 struct wpa_ssid *ssid;
1322
1323 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1324 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1325 {
1326 if (wpas_network_disabled(wpa_s, ssid))
1327 continue;
1328 if (ssid->mode == IEEE80211_MODE_IBSS ||
1329 ssid->mode == IEEE80211_MODE_AP ||
1330 ssid->mode == IEEE80211_MODE_MESH)
1331 return ssid;
1332 }
1333 }
1334 return NULL;
1335 }
1336
1337
1338 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1339 * on BSS added and BSS changed events */
1340 static void wpa_supplicant_rsn_preauth_scan_results(
1341 struct wpa_supplicant *wpa_s)
1342 {
1343 struct wpa_bss *bss;
1344
1345 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1346 return;
1347
1348 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1349 const u8 *ssid, *rsn;
1350
1351 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1352 if (ssid == NULL)
1353 continue;
1354
1355 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1356 if (rsn == NULL)
1357 continue;
1358
1359 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1360 }
1361
1362 }
1363
1364
1365 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1366 struct wpa_bss *selected,
1367 struct wpa_ssid *ssid)
1368 {
1369 struct wpa_bss *current_bss = NULL;
1370 #ifndef CONFIG_NO_ROAMING
1371 int min_diff;
1372 int to_5ghz;
1373 #endif /* CONFIG_NO_ROAMING */
1374
1375 if (wpa_s->reassociate)
1376 return 1; /* explicit request to reassociate */
1377 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1378 return 1; /* we are not associated; continue */
1379 if (wpa_s->current_ssid == NULL)
1380 return 1; /* unknown current SSID */
1381 if (wpa_s->current_ssid != ssid)
1382 return 1; /* different network block */
1383
1384 if (wpas_driver_bss_selection(wpa_s))
1385 return 0; /* Driver-based roaming */
1386
1387 if (wpa_s->current_ssid->ssid)
1388 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1389 wpa_s->current_ssid->ssid,
1390 wpa_s->current_ssid->ssid_len);
1391 if (!current_bss)
1392 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1393
1394 if (!current_bss)
1395 return 1; /* current BSS not seen in scan results */
1396
1397 if (current_bss == selected)
1398 return 0;
1399
1400 if (selected->last_update_idx > current_bss->last_update_idx)
1401 return 1; /* current BSS not seen in the last scan */
1402
1403 #ifndef CONFIG_NO_ROAMING
1404 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1405 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1406 " level=%d snr=%d est_throughput=%u",
1407 MAC2STR(current_bss->bssid), current_bss->level,
1408 current_bss->snr, current_bss->est_throughput);
1409 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1410 " level=%d snr=%d est_throughput=%u",
1411 MAC2STR(selected->bssid), selected->level,
1412 selected->snr, selected->est_throughput);
1413
1414 if (wpa_s->current_ssid->bssid_set &&
1415 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1416 0) {
1417 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1418 "has preferred BSSID");
1419 return 1;
1420 }
1421
1422 if (selected->est_throughput > current_bss->est_throughput + 5000) {
1423 wpa_dbg(wpa_s, MSG_DEBUG,
1424 "Allow reassociation - selected BSS has better estimated throughput");
1425 return 1;
1426 }
1427
1428 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
1429
1430 if (current_bss->level < 0 &&
1431 current_bss->level > selected->level + to_5ghz * 2) {
1432 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1433 "signal level");
1434 return 0;
1435 }
1436
1437 min_diff = 2;
1438 if (current_bss->level < 0) {
1439 if (current_bss->level < -85)
1440 min_diff = 1;
1441 else if (current_bss->level < -80)
1442 min_diff = 2;
1443 else if (current_bss->level < -75)
1444 min_diff = 3;
1445 else if (current_bss->level < -70)
1446 min_diff = 4;
1447 else
1448 min_diff = 5;
1449 }
1450 if (to_5ghz) {
1451 /* Make it easier to move to 5 GHz band */
1452 if (min_diff > 2)
1453 min_diff -= 2;
1454 else
1455 min_diff = 0;
1456 }
1457 if (abs(current_bss->level - selected->level) < min_diff) {
1458 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1459 "in signal level");
1460 return 0;
1461 }
1462
1463 return 1;
1464 #else /* CONFIG_NO_ROAMING */
1465 return 0;
1466 #endif /* CONFIG_NO_ROAMING */
1467 }
1468
1469
1470 /* Return != 0 if no scan results could be fetched or if scan results should not
1471 * be shared with other virtual interfaces. */
1472 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1473 union wpa_event_data *data,
1474 int own_request)
1475 {
1476 struct wpa_scan_results *scan_res = NULL;
1477 int ret = 0;
1478 int ap = 0;
1479 #ifndef CONFIG_NO_RANDOM_POOL
1480 size_t i, num;
1481 #endif /* CONFIG_NO_RANDOM_POOL */
1482
1483 #ifdef CONFIG_AP
1484 if (wpa_s->ap_iface)
1485 ap = 1;
1486 #endif /* CONFIG_AP */
1487
1488 wpa_supplicant_notify_scanning(wpa_s, 0);
1489
1490 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1491 data ? &data->scan_info :
1492 NULL, 1);
1493 if (scan_res == NULL) {
1494 if (wpa_s->conf->ap_scan == 2 || ap ||
1495 wpa_s->scan_res_handler == scan_only_handler)
1496 return -1;
1497 if (!own_request)
1498 return -1;
1499 if (data && data->scan_info.external_scan)
1500 return -1;
1501 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1502 "scanning again");
1503 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1504 ret = -1;
1505 goto scan_work_done;
1506 }
1507
1508 #ifndef CONFIG_NO_RANDOM_POOL
1509 num = scan_res->num;
1510 if (num > 10)
1511 num = 10;
1512 for (i = 0; i < num; i++) {
1513 u8 buf[5];
1514 struct wpa_scan_res *res = scan_res->res[i];
1515 buf[0] = res->bssid[5];
1516 buf[1] = res->qual & 0xff;
1517 buf[2] = res->noise & 0xff;
1518 buf[3] = res->level & 0xff;
1519 buf[4] = res->tsf & 0xff;
1520 random_add_randomness(buf, sizeof(buf));
1521 }
1522 #endif /* CONFIG_NO_RANDOM_POOL */
1523
1524 if (own_request && wpa_s->scan_res_handler &&
1525 !(data && data->scan_info.external_scan)) {
1526 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1527 struct wpa_scan_results *scan_res);
1528
1529 scan_res_handler = wpa_s->scan_res_handler;
1530 wpa_s->scan_res_handler = NULL;
1531 scan_res_handler(wpa_s, scan_res);
1532 ret = -2;
1533 goto scan_work_done;
1534 }
1535
1536 if (ap) {
1537 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1538 #ifdef CONFIG_AP
1539 if (wpa_s->ap_iface->scan_cb)
1540 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1541 #endif /* CONFIG_AP */
1542 goto scan_work_done;
1543 }
1544
1545 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1546 wpa_s->own_scan_running,
1547 data ? data->scan_info.external_scan : 0);
1548 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1549 wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
1550 own_request && !(data && data->scan_info.external_scan)) {
1551 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1552 wpa_s->manual_scan_id);
1553 wpa_s->manual_scan_use_id = 0;
1554 } else {
1555 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1556 }
1557 wpas_notify_scan_results(wpa_s);
1558
1559 wpas_notify_scan_done(wpa_s, 1);
1560
1561 if (data && data->scan_info.external_scan) {
1562 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1563 wpa_scan_results_free(scan_res);
1564 return 0;
1565 }
1566
1567 if (wnm_scan_process(wpa_s, 1) > 0)
1568 goto scan_work_done;
1569
1570 if (sme_proc_obss_scan(wpa_s) > 0)
1571 goto scan_work_done;
1572
1573 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1574 goto scan_work_done;
1575
1576 if (autoscan_notify_scan(wpa_s, scan_res))
1577 goto scan_work_done;
1578
1579 if (wpa_s->disconnected) {
1580 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1581 goto scan_work_done;
1582 }
1583
1584 if (!wpas_driver_bss_selection(wpa_s) &&
1585 bgscan_notify_scan(wpa_s, scan_res) == 1)
1586 goto scan_work_done;
1587
1588 wpas_wps_update_ap_info(wpa_s, scan_res);
1589
1590 if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
1591 wpa_s->wpa_state < WPA_COMPLETED)
1592 goto scan_work_done;
1593
1594 wpa_scan_results_free(scan_res);
1595
1596 if (own_request && wpa_s->scan_work) {
1597 struct wpa_radio_work *work = wpa_s->scan_work;
1598 wpa_s->scan_work = NULL;
1599 radio_work_done(work);
1600 }
1601
1602 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
1603
1604 scan_work_done:
1605 wpa_scan_results_free(scan_res);
1606 if (own_request && wpa_s->scan_work) {
1607 struct wpa_radio_work *work = wpa_s->scan_work;
1608 wpa_s->scan_work = NULL;
1609 radio_work_done(work);
1610 }
1611 return ret;
1612 }
1613
1614
1615 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
1616 int new_scan, int own_request)
1617 {
1618 struct wpa_bss *selected;
1619 struct wpa_ssid *ssid = NULL;
1620 int time_to_reenable = wpas_reenabled_network_time(wpa_s);
1621
1622 if (time_to_reenable > 0) {
1623 wpa_dbg(wpa_s, MSG_DEBUG,
1624 "Postpone network selection by %d seconds since all networks are disabled",
1625 time_to_reenable);
1626 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
1627 eloop_register_timeout(time_to_reenable, 0,
1628 wpas_network_reenabled, wpa_s, NULL);
1629 return 0;
1630 }
1631
1632 if (wpa_s->p2p_mgmt)
1633 return 0; /* no normal connection on p2p_mgmt interface */
1634
1635 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1636
1637 #ifdef CONFIG_MESH
1638 if (wpa_s->ifmsh) {
1639 wpa_msg(wpa_s, MSG_INFO,
1640 "Avoiding join because we already joined a mesh group");
1641 return 0;
1642 }
1643 #endif /* CONFIG_MESH */
1644
1645 if (selected) {
1646 int skip;
1647 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1648 if (skip) {
1649 if (new_scan)
1650 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1651 return 0;
1652 }
1653
1654 if (ssid != wpa_s->current_ssid &&
1655 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1656 wpa_s->own_disconnect_req = 1;
1657 wpa_supplicant_deauthenticate(
1658 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1659 }
1660
1661 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1662 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1663 return -1;
1664 }
1665 if (new_scan)
1666 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1667 /*
1668 * Do not notify other virtual radios of scan results since we do not
1669 * want them to start other associations at the same time.
1670 */
1671 return 1;
1672 } else {
1673 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1674 ssid = wpa_supplicant_pick_new_network(wpa_s);
1675 if (ssid) {
1676 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1677 wpa_supplicant_associate(wpa_s, NULL, ssid);
1678 if (new_scan)
1679 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1680 } else if (own_request) {
1681 /*
1682 * No SSID found. If SCAN results are as a result of
1683 * own scan request and not due to a scan request on
1684 * another shared interface, try another scan.
1685 */
1686 int timeout_sec = wpa_s->scan_interval;
1687 int timeout_usec = 0;
1688 #ifdef CONFIG_P2P
1689 int res;
1690
1691 res = wpas_p2p_scan_no_go_seen(wpa_s);
1692 if (res == 2)
1693 return 2;
1694 if (res == 1)
1695 return 0;
1696
1697 if (wpa_s->p2p_in_provisioning ||
1698 wpa_s->show_group_started ||
1699 wpa_s->p2p_in_invitation) {
1700 /*
1701 * Use shorter wait during P2P Provisioning
1702 * state and during P2P join-a-group operation
1703 * to speed up group formation.
1704 */
1705 timeout_sec = 0;
1706 timeout_usec = 250000;
1707 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1708 timeout_usec);
1709 return 0;
1710 }
1711 #endif /* CONFIG_P2P */
1712 #ifdef CONFIG_INTERWORKING
1713 if (wpa_s->conf->auto_interworking &&
1714 wpa_s->conf->interworking &&
1715 wpa_s->conf->cred) {
1716 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1717 "start ANQP fetch since no matching "
1718 "networks found");
1719 wpa_s->network_select = 1;
1720 wpa_s->auto_network_select = 1;
1721 interworking_start_fetch_anqp(wpa_s);
1722 return 1;
1723 }
1724 #endif /* CONFIG_INTERWORKING */
1725 #ifdef CONFIG_WPS
1726 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
1727 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1728 timeout_sec = 0;
1729 timeout_usec = 500000;
1730 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1731 timeout_usec);
1732 return 0;
1733 }
1734 #endif /* CONFIG_WPS */
1735 if (wpa_supplicant_req_sched_scan(wpa_s))
1736 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1737 timeout_usec);
1738
1739 wpa_msg_ctrl(wpa_s, MSG_INFO,
1740 WPA_EVENT_NETWORK_NOT_FOUND);
1741 }
1742 }
1743 return 0;
1744 }
1745
1746
1747 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1748 union wpa_event_data *data)
1749 {
1750 struct wpa_supplicant *ifs;
1751 int res;
1752
1753 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1);
1754 if (res == 2) {
1755 /*
1756 * Interface may have been removed, so must not dereference
1757 * wpa_s after this.
1758 */
1759 return 1;
1760 }
1761 if (res != 0) {
1762 /*
1763 * If no scan results could be fetched, then no need to
1764 * notify those interfaces that did not actually request
1765 * this scan. Similarly, if scan results started a new operation on this
1766 * interface, do not notify other interfaces to avoid concurrent
1767 * operations during a connection attempt.
1768 */
1769 return 0;
1770 }
1771
1772 /*
1773 * Check other interfaces to see if they share the same radio. If
1774 * so, they get updated with this same scan info.
1775 */
1776 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1777 radio_list) {
1778 if (ifs != wpa_s) {
1779 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1780 "sibling", ifs->ifname);
1781 _wpa_supplicant_event_scan_results(ifs, data, 0);
1782 }
1783 }
1784
1785 return 0;
1786 }
1787
1788 #endif /* CONFIG_NO_SCAN_PROCESSING */
1789
1790
1791 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1792 {
1793 #ifdef CONFIG_NO_SCAN_PROCESSING
1794 return -1;
1795 #else /* CONFIG_NO_SCAN_PROCESSING */
1796 struct os_reltime now;
1797
1798 if (wpa_s->last_scan_res_used == 0)
1799 return -1;
1800
1801 os_get_reltime(&now);
1802 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
1803 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1804 return -1;
1805 }
1806
1807 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
1808 #endif /* CONFIG_NO_SCAN_PROCESSING */
1809 }
1810
1811 #ifdef CONFIG_WNM
1812
1813 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1814 {
1815 struct wpa_supplicant *wpa_s = eloop_ctx;
1816
1817 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1818 return;
1819
1820 if (!wpa_s->no_keep_alive) {
1821 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1822 MAC2STR(wpa_s->bssid));
1823 /* TODO: could skip this if normal data traffic has been sent */
1824 /* TODO: Consider using some more appropriate data frame for
1825 * this */
1826 if (wpa_s->l2)
1827 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1828 (u8 *) "", 0);
1829 }
1830
1831 #ifdef CONFIG_SME
1832 if (wpa_s->sme.bss_max_idle_period) {
1833 unsigned int msec;
1834 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1835 if (msec > 100)
1836 msec -= 100;
1837 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1838 wnm_bss_keep_alive, wpa_s, NULL);
1839 }
1840 #endif /* CONFIG_SME */
1841 }
1842
1843
1844 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1845 const u8 *ies, size_t ies_len)
1846 {
1847 struct ieee802_11_elems elems;
1848
1849 if (ies == NULL)
1850 return;
1851
1852 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1853 return;
1854
1855 #ifdef CONFIG_SME
1856 if (elems.bss_max_idle_period) {
1857 unsigned int msec;
1858 wpa_s->sme.bss_max_idle_period =
1859 WPA_GET_LE16(elems.bss_max_idle_period);
1860 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1861 "TU)%s", wpa_s->sme.bss_max_idle_period,
1862 (elems.bss_max_idle_period[2] & 0x01) ?
1863 " (protected keep-live required)" : "");
1864 if (wpa_s->sme.bss_max_idle_period == 0)
1865 wpa_s->sme.bss_max_idle_period = 1;
1866 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1867 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1868 /* msec times 1000 */
1869 msec = wpa_s->sme.bss_max_idle_period * 1024;
1870 if (msec > 100)
1871 msec -= 100;
1872 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1873 wnm_bss_keep_alive, wpa_s,
1874 NULL);
1875 }
1876 }
1877 #endif /* CONFIG_SME */
1878 }
1879
1880 #endif /* CONFIG_WNM */
1881
1882
1883 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1884 {
1885 #ifdef CONFIG_WNM
1886 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1887 #endif /* CONFIG_WNM */
1888 }
1889
1890
1891 #ifdef CONFIG_INTERWORKING
1892
1893 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1894 size_t len)
1895 {
1896 int res;
1897
1898 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1899 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1900 if (res) {
1901 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1902 }
1903
1904 return res;
1905 }
1906
1907
1908 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1909 const u8 *ies, size_t ies_len)
1910 {
1911 struct ieee802_11_elems elems;
1912
1913 if (ies == NULL)
1914 return;
1915
1916 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1917 return;
1918
1919 if (elems.qos_map_set) {
1920 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1921 elems.qos_map_set_len);
1922 }
1923 }
1924
1925 #endif /* CONFIG_INTERWORKING */
1926
1927
1928 #ifdef CONFIG_FST
1929 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
1930 const u8 *ie, size_t ie_len)
1931 {
1932 struct mb_ies_info mb_ies;
1933
1934 if (!ie || !ie_len || !wpa_s->fst)
1935 return -ENOENT;
1936
1937 os_memset(&mb_ies, 0, sizeof(mb_ies));
1938
1939 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
1940 size_t len;
1941
1942 len = 2 + ie[1];
1943 if (len > ie_len) {
1944 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
1945 ie, ie_len);
1946 break;
1947 }
1948
1949 if (ie[0] == WLAN_EID_MULTI_BAND) {
1950 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
1951 (unsigned int) len);
1952 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
1953 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
1954 mb_ies.nof_ies++;
1955 }
1956
1957 ie_len -= len;
1958 ie += len;
1959 }
1960
1961 if (mb_ies.nof_ies > 0) {
1962 wpabuf_free(wpa_s->received_mb_ies);
1963 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
1964 return 0;
1965 }
1966
1967 return -ENOENT;
1968 }
1969 #endif /* CONFIG_FST */
1970
1971
1972 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1973 union wpa_event_data *data)
1974 {
1975 int l, len, found = 0, wpa_found, rsn_found;
1976 const u8 *p;
1977 #ifdef CONFIG_IEEE80211R
1978 u8 bssid[ETH_ALEN];
1979 #endif /* CONFIG_IEEE80211R */
1980
1981 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1982 if (data->assoc_info.req_ies)
1983 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1984 data->assoc_info.req_ies_len);
1985 if (data->assoc_info.resp_ies) {
1986 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1987 data->assoc_info.resp_ies_len);
1988 #ifdef CONFIG_TDLS
1989 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1990 data->assoc_info.resp_ies_len);
1991 #endif /* CONFIG_TDLS */
1992 #ifdef CONFIG_WNM
1993 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1994 data->assoc_info.resp_ies_len);
1995 #endif /* CONFIG_WNM */
1996 #ifdef CONFIG_INTERWORKING
1997 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1998 data->assoc_info.resp_ies_len);
1999 #endif /* CONFIG_INTERWORKING */
2000 }
2001 if (data->assoc_info.beacon_ies)
2002 wpa_hexdump(MSG_DEBUG, "beacon_ies",
2003 data->assoc_info.beacon_ies,
2004 data->assoc_info.beacon_ies_len);
2005 if (data->assoc_info.freq)
2006 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
2007 data->assoc_info.freq);
2008
2009 p = data->assoc_info.req_ies;
2010 l = data->assoc_info.req_ies_len;
2011
2012 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
2013 while (p && l >= 2) {
2014 len = p[1] + 2;
2015 if (len > l) {
2016 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2017 p, l);
2018 break;
2019 }
2020 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2021 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
2022 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
2023 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
2024 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
2025 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
2026 break;
2027 found = 1;
2028 wpa_find_assoc_pmkid(wpa_s);
2029 break;
2030 }
2031 l -= len;
2032 p += len;
2033 }
2034 if (!found && data->assoc_info.req_ies)
2035 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2036
2037 #ifdef CONFIG_IEEE80211R
2038 #ifdef CONFIG_SME
2039 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
2040 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2041 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2042 data->assoc_info.resp_ies,
2043 data->assoc_info.resp_ies_len,
2044 bssid) < 0) {
2045 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2046 "Reassociation Response failed");
2047 wpa_supplicant_deauthenticate(
2048 wpa_s, WLAN_REASON_INVALID_IE);
2049 return -1;
2050 }
2051 }
2052
2053 p = data->assoc_info.resp_ies;
2054 l = data->assoc_info.resp_ies_len;
2055
2056 #ifdef CONFIG_WPS_STRICT
2057 if (p && wpa_s->current_ssid &&
2058 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
2059 struct wpabuf *wps;
2060 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
2061 if (wps == NULL) {
2062 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
2063 "include WPS IE in (Re)Association Response");
2064 return -1;
2065 }
2066
2067 if (wps_validate_assoc_resp(wps) < 0) {
2068 wpabuf_free(wps);
2069 wpa_supplicant_deauthenticate(
2070 wpa_s, WLAN_REASON_INVALID_IE);
2071 return -1;
2072 }
2073 wpabuf_free(wps);
2074 }
2075 #endif /* CONFIG_WPS_STRICT */
2076
2077 /* Go through the IEs and make a copy of the MDIE, if present. */
2078 while (p && l >= 2) {
2079 len = p[1] + 2;
2080 if (len > l) {
2081 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2082 p, l);
2083 break;
2084 }
2085 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
2086 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
2087 wpa_s->sme.ft_used = 1;
2088 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
2089 MOBILITY_DOMAIN_ID_LEN);
2090 break;
2091 }
2092 l -= len;
2093 p += len;
2094 }
2095 #endif /* CONFIG_SME */
2096
2097 /* Process FT when SME is in the driver */
2098 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
2099 wpa_ft_is_completed(wpa_s->wpa)) {
2100 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2101 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2102 data->assoc_info.resp_ies,
2103 data->assoc_info.resp_ies_len,
2104 bssid) < 0) {
2105 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2106 "Reassociation Response failed");
2107 wpa_supplicant_deauthenticate(
2108 wpa_s, WLAN_REASON_INVALID_IE);
2109 return -1;
2110 }
2111 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
2112 }
2113
2114 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
2115 data->assoc_info.resp_ies_len);
2116 #endif /* CONFIG_IEEE80211R */
2117
2118 /* WPA/RSN IE from Beacon/ProbeResp */
2119 p = data->assoc_info.beacon_ies;
2120 l = data->assoc_info.beacon_ies_len;
2121
2122 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
2123 */
2124 wpa_found = rsn_found = 0;
2125 while (p && l >= 2) {
2126 len = p[1] + 2;
2127 if (len > l) {
2128 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
2129 p, l);
2130 break;
2131 }
2132 if (!wpa_found &&
2133 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2134 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
2135 wpa_found = 1;
2136 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
2137 }
2138
2139 if (!rsn_found &&
2140 p[0] == WLAN_EID_RSN && p[1] >= 2) {
2141 rsn_found = 1;
2142 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
2143 }
2144
2145 l -= len;
2146 p += len;
2147 }
2148
2149 if (!wpa_found && data->assoc_info.beacon_ies)
2150 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
2151 if (!rsn_found && data->assoc_info.beacon_ies)
2152 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
2153 if (wpa_found || rsn_found)
2154 wpa_s->ap_ies_from_associnfo = 1;
2155
2156 if (wpa_s->assoc_freq && data->assoc_info.freq &&
2157 wpa_s->assoc_freq != data->assoc_info.freq) {
2158 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
2159 "%u to %u MHz",
2160 wpa_s->assoc_freq, data->assoc_info.freq);
2161 wpa_supplicant_update_scan_results(wpa_s);
2162 }
2163
2164 wpa_s->assoc_freq = data->assoc_info.freq;
2165
2166 return 0;
2167 }
2168
2169
2170 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
2171 {
2172 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
2173
2174 if (!wpa_s->current_bss || !wpa_s->current_ssid)
2175 return -1;
2176
2177 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
2178 return 0;
2179
2180 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
2181 WPA_IE_VENDOR_TYPE);
2182 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
2183
2184 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
2185 bss_wpa ? 2 + bss_wpa[1] : 0) ||
2186 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
2187 bss_rsn ? 2 + bss_rsn[1] : 0))
2188 return -1;
2189
2190 return 0;
2191 }
2192
2193
2194 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
2195 union wpa_event_data *data)
2196 {
2197 #ifdef CONFIG_FST
2198 struct assoc_info *ai = data ? &data->assoc_info : NULL;
2199 struct wpa_bss *bss = wpa_s->current_bss;
2200 const u8 *ieprb, *iebcn;
2201
2202 wpabuf_free(wpa_s->received_mb_ies);
2203 wpa_s->received_mb_ies = NULL;
2204
2205 if (ai &&
2206 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
2207 wpa_printf(MSG_DEBUG,
2208 "FST: MB IEs updated from Association Response frame");
2209 return;
2210 }
2211
2212 if (ai &&
2213 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
2214 wpa_printf(MSG_DEBUG,
2215 "FST: MB IEs updated from association event Beacon IEs");
2216 return;
2217 }
2218
2219 if (!bss)
2220 return;
2221
2222 ieprb = (const u8 *) (bss + 1);
2223 iebcn = ieprb + bss->ie_len;
2224
2225 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
2226 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
2227 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
2228 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
2229 #endif /* CONFIG_FST */
2230 }
2231
2232
2233 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
2234 union wpa_event_data *data)
2235 {
2236 u8 bssid[ETH_ALEN];
2237 int ft_completed, already_authorized;
2238 int new_bss = 0;
2239
2240 #ifdef CONFIG_AP
2241 if (wpa_s->ap_iface) {
2242 if (!data)
2243 return;
2244 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
2245 data->assoc_info.addr,
2246 data->assoc_info.req_ies,
2247 data->assoc_info.req_ies_len,
2248 data->assoc_info.reassoc);
2249 return;
2250 }
2251 #endif /* CONFIG_AP */
2252
2253 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2254
2255 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
2256 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
2257 return;
2258
2259 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
2260 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
2261 wpa_supplicant_deauthenticate(
2262 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2263 return;
2264 }
2265
2266 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
2267 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
2268 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
2269 MACSTR, MAC2STR(bssid));
2270 new_bss = 1;
2271 random_add_randomness(bssid, ETH_ALEN);
2272 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
2273 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2274 wpas_notify_bssid_changed(wpa_s);
2275
2276 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
2277 wpa_clear_keys(wpa_s, bssid);
2278 }
2279 if (wpa_supplicant_select_config(wpa_s) < 0) {
2280 wpa_supplicant_deauthenticate(
2281 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2282 return;
2283 }
2284 }
2285
2286 if (wpa_s->conf->ap_scan == 1 &&
2287 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
2288 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
2289 wpa_msg(wpa_s, MSG_WARNING,
2290 "WPA/RSN IEs not updated");
2291 }
2292
2293 wpas_fst_update_mb_assoc(wpa_s, data);
2294
2295 #ifdef CONFIG_SME
2296 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
2297 wpa_s->sme.prev_bssid_set = 1;
2298 wpa_s->sme.last_unprot_disconnect.sec = 0;
2299 #endif /* CONFIG_SME */
2300
2301 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
2302 if (wpa_s->current_ssid) {
2303 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
2304 * initialized before association, but for other modes,
2305 * initialize PC/SC here, if the current configuration needs
2306 * smartcard or SIM/USIM. */
2307 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
2308 }
2309 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
2310 if (wpa_s->l2)
2311 l2_packet_notify_auth_start(wpa_s->l2);
2312
2313 already_authorized = data && data->assoc_info.authorized;
2314
2315 /*
2316 * Set portEnabled first to FALSE in order to get EAP state machine out
2317 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
2318 * state machine may transit to AUTHENTICATING state based on obsolete
2319 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
2320 * AUTHENTICATED without ever giving chance to EAP state machine to
2321 * reset the state.
2322 */
2323 if (!ft_completed && !already_authorized) {
2324 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
2325 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
2326 }
2327 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed ||
2328 already_authorized)
2329 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
2330 /* 802.1X::portControl = Auto */
2331 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
2332 wpa_s->eapol_received = 0;
2333 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2334 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
2335 (wpa_s->current_ssid &&
2336 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
2337 if (wpa_s->current_ssid &&
2338 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
2339 (wpa_s->drv_flags &
2340 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2341 /*
2342 * Set the key after having received joined-IBSS event
2343 * from the driver.
2344 */
2345 wpa_supplicant_set_wpa_none_key(wpa_s,
2346 wpa_s->current_ssid);
2347 }
2348 wpa_supplicant_cancel_auth_timeout(wpa_s);
2349 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2350 } else if (!ft_completed) {
2351 /* Timeout for receiving the first EAPOL packet */
2352 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
2353 }
2354 wpa_supplicant_cancel_scan(wpa_s);
2355
2356 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2357 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
2358 /*
2359 * We are done; the driver will take care of RSN 4-way
2360 * handshake.
2361 */
2362 wpa_supplicant_cancel_auth_timeout(wpa_s);
2363 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2364 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2365 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2366 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2367 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
2368 /*
2369 * The driver will take care of RSN 4-way handshake, so we need
2370 * to allow EAPOL supplicant to complete its work without
2371 * waiting for WPA supplicant.
2372 */
2373 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2374 } else if (ft_completed) {
2375 /*
2376 * FT protocol completed - make sure EAPOL state machine ends
2377 * up in authenticated.
2378 */
2379 wpa_supplicant_cancel_auth_timeout(wpa_s);
2380 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2381 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2382 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2383 }
2384
2385 wpa_s->last_eapol_matches_bssid = 0;
2386
2387 if (wpa_s->pending_eapol_rx) {
2388 struct os_reltime now, age;
2389 os_get_reltime(&now);
2390 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
2391 if (age.sec == 0 && age.usec < 100000 &&
2392 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2393 0) {
2394 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2395 "frame that was received just before "
2396 "association notification");
2397 wpa_supplicant_rx_eapol(
2398 wpa_s, wpa_s->pending_eapol_rx_src,
2399 wpabuf_head(wpa_s->pending_eapol_rx),
2400 wpabuf_len(wpa_s->pending_eapol_rx));
2401 }
2402 wpabuf_free(wpa_s->pending_eapol_rx);
2403 wpa_s->pending_eapol_rx = NULL;
2404 }
2405
2406 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2407 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
2408 wpa_s->current_ssid &&
2409 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2410 /* Set static WEP keys again */
2411 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2412 }
2413
2414 #ifdef CONFIG_IBSS_RSN
2415 if (wpa_s->current_ssid &&
2416 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2417 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2418 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2419 wpa_s->ibss_rsn == NULL) {
2420 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2421 if (!wpa_s->ibss_rsn) {
2422 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2423 wpa_supplicant_deauthenticate(
2424 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2425 return;
2426 }
2427
2428 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2429 }
2430 #endif /* CONFIG_IBSS_RSN */
2431
2432 wpas_wps_notify_assoc(wpa_s, bssid);
2433
2434 if (data) {
2435 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2436 data->assoc_info.resp_ies_len,
2437 &data->assoc_info.wmm_params);
2438
2439 if (wpa_s->reassoc_same_bss)
2440 wmm_ac_restore_tspecs(wpa_s);
2441 }
2442 }
2443
2444
2445 static int disconnect_reason_recoverable(u16 reason_code)
2446 {
2447 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2448 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2449 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2450 }
2451
2452
2453 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
2454 u16 reason_code,
2455 int locally_generated)
2456 {
2457 const u8 *bssid;
2458
2459 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2460 /*
2461 * At least Host AP driver and a Prism3 card seemed to be
2462 * generating streams of disconnected events when configuring
2463 * IBSS for WPA-None. Ignore them for now.
2464 */
2465 return;
2466 }
2467
2468 bssid = wpa_s->bssid;
2469 if (is_zero_ether_addr(bssid))
2470 bssid = wpa_s->pending_bssid;
2471
2472 if (!is_zero_ether_addr(bssid) ||
2473 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2474 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2475 " reason=%d%s",
2476 MAC2STR(bssid), reason_code,
2477 locally_generated ? " locally_generated=1" : "");
2478 }
2479 }
2480
2481
2482 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2483 int locally_generated)
2484 {
2485 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2486 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2487 return 0; /* Not in 4-way handshake with PSK */
2488
2489 /*
2490 * It looks like connection was lost while trying to go through PSK
2491 * 4-way handshake. Filter out known disconnection cases that are caused
2492 * by something else than PSK mismatch to avoid confusing reports.
2493 */
2494
2495 if (locally_generated) {
2496 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2497 return 0;
2498 }
2499
2500 return 1;
2501 }
2502
2503
2504 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2505 u16 reason_code,
2506 int locally_generated)
2507 {
2508 const u8 *bssid;
2509 int authenticating;
2510 u8 prev_pending_bssid[ETH_ALEN];
2511 struct wpa_bss *fast_reconnect = NULL;
2512 struct wpa_ssid *fast_reconnect_ssid = NULL;
2513 struct wpa_ssid *last_ssid;
2514
2515 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2516 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
2517
2518 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2519 /*
2520 * At least Host AP driver and a Prism3 card seemed to be
2521 * generating streams of disconnected events when configuring
2522 * IBSS for WPA-None. Ignore them for now.
2523 */
2524 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2525 "IBSS/WPA-None mode");
2526 return;
2527 }
2528
2529 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
2530 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2531 "pre-shared key may be incorrect");
2532 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2533 return; /* P2P group removed */
2534 wpas_auth_failed(wpa_s, "WRONG_KEY");
2535 }
2536 if (!wpa_s->disconnected &&
2537 (!wpa_s->auto_reconnect_disabled ||
2538 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
2539 wpas_wps_searching(wpa_s) ||
2540 wpas_wps_reenable_networks_pending(wpa_s))) {
2541 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
2542 "reconnect (wps=%d/%d wpa_state=%d)",
2543 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2544 wpas_wps_searching(wpa_s),
2545 wpa_s->wpa_state);
2546 if (wpa_s->wpa_state == WPA_COMPLETED &&
2547 wpa_s->current_ssid &&
2548 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
2549 !locally_generated &&
2550 disconnect_reason_recoverable(reason_code)) {
2551 /*
2552 * It looks like the AP has dropped association with
2553 * us, but could allow us to get back in. Try to
2554 * reconnect to the same BSS without full scan to save
2555 * time for some common cases.
2556 */
2557 fast_reconnect = wpa_s->current_bss;
2558 fast_reconnect_ssid = wpa_s->current_ssid;
2559 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
2560 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2561 else
2562 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2563 "immediate scan");
2564 } else {
2565 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
2566 "try to re-connect");
2567 wpa_s->reassociate = 0;
2568 wpa_s->disconnected = 1;
2569 if (!wpa_s->pno)
2570 wpa_supplicant_cancel_sched_scan(wpa_s);
2571 }
2572 bssid = wpa_s->bssid;
2573 if (is_zero_ether_addr(bssid))
2574 bssid = wpa_s->pending_bssid;
2575 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2576 wpas_connection_failed(wpa_s, bssid);
2577 wpa_sm_notify_disassoc(wpa_s->wpa);
2578 if (locally_generated)
2579 wpa_s->disconnect_reason = -reason_code;
2580 else
2581 wpa_s->disconnect_reason = reason_code;
2582 wpas_notify_disconnect_reason(wpa_s);
2583 if (wpa_supplicant_dynamic_keys(wpa_s)) {
2584 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
2585 wpa_clear_keys(wpa_s, wpa_s->bssid);
2586 }
2587 last_ssid = wpa_s->current_ssid;
2588 wpa_supplicant_mark_disassoc(wpa_s);
2589
2590 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2591 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2592 wpa_s->current_ssid = last_ssid;
2593 }
2594
2595 if (fast_reconnect &&
2596 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2597 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2598 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2599 fast_reconnect->ssid_len) &&
2600 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
2601 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) {
2602 #ifndef CONFIG_NO_SCAN_PROCESSING
2603 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2604 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2605 fast_reconnect_ssid) < 0) {
2606 /* Recover through full scan */
2607 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2608 }
2609 #endif /* CONFIG_NO_SCAN_PROCESSING */
2610 } else if (fast_reconnect) {
2611 /*
2612 * Could not reconnect to the same BSS due to network being
2613 * disabled. Use a new scan to match the alternative behavior
2614 * above, i.e., to continue automatic reconnection attempt in a
2615 * way that enforces disabled network rules.
2616 */
2617 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2618 }
2619 }
2620
2621
2622 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2623 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
2624 {
2625 struct wpa_supplicant *wpa_s = eloop_ctx;
2626
2627 if (!wpa_s->pending_mic_error_report)
2628 return;
2629
2630 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2631 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2632 wpa_s->pending_mic_error_report = 0;
2633 }
2634 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2635
2636
2637 static void
2638 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2639 union wpa_event_data *data)
2640 {
2641 int pairwise;
2642 struct os_reltime t;
2643
2644 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2645 pairwise = (data && data->michael_mic_failure.unicast);
2646 os_get_reltime(&t);
2647 if ((wpa_s->last_michael_mic_error.sec &&
2648 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
2649 wpa_s->pending_mic_error_report) {
2650 if (wpa_s->pending_mic_error_report) {
2651 /*
2652 * Send the pending MIC error report immediately since
2653 * we are going to start countermeasures and AP better
2654 * do the same.
2655 */
2656 wpa_sm_key_request(wpa_s->wpa, 1,
2657 wpa_s->pending_mic_error_pairwise);
2658 }
2659
2660 /* Send the new MIC error report immediately since we are going
2661 * to start countermeasures and AP better do the same.
2662 */
2663 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2664
2665 /* initialize countermeasures */
2666 wpa_s->countermeasures = 1;
2667
2668 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2669
2670 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2671
2672 /*
2673 * Need to wait for completion of request frame. We do not get
2674 * any callback for the message completion, so just wait a
2675 * short while and hope for the best. */
2676 os_sleep(0, 10000);
2677
2678 wpa_drv_set_countermeasures(wpa_s, 1);
2679 wpa_supplicant_deauthenticate(wpa_s,
2680 WLAN_REASON_MICHAEL_MIC_FAILURE);
2681 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2682 wpa_s, NULL);
2683 eloop_register_timeout(60, 0,
2684 wpa_supplicant_stop_countermeasures,
2685 wpa_s, NULL);
2686 /* TODO: mark the AP rejected for 60 second. STA is
2687 * allowed to associate with another AP.. */
2688 } else {
2689 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2690 if (wpa_s->mic_errors_seen) {
2691 /*
2692 * Reduce the effectiveness of Michael MIC error
2693 * reports as a means for attacking against TKIP if
2694 * more than one MIC failure is noticed with the same
2695 * PTK. We delay the transmission of the reports by a
2696 * random time between 0 and 60 seconds in order to
2697 * force the attacker wait 60 seconds before getting
2698 * the information on whether a frame resulted in a MIC
2699 * failure.
2700 */
2701 u8 rval[4];
2702 int sec;
2703
2704 if (os_get_random(rval, sizeof(rval)) < 0)
2705 sec = os_random() % 60;
2706 else
2707 sec = WPA_GET_BE32(rval) % 60;
2708 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2709 "report %d seconds", sec);
2710 wpa_s->pending_mic_error_report = 1;
2711 wpa_s->pending_mic_error_pairwise = pairwise;
2712 eloop_cancel_timeout(
2713 wpa_supplicant_delayed_mic_error_report,
2714 wpa_s, NULL);
2715 eloop_register_timeout(
2716 sec, os_random() % 1000000,
2717 wpa_supplicant_delayed_mic_error_report,
2718 wpa_s, NULL);
2719 } else {
2720 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2721 }
2722 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2723 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2724 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2725 }
2726 wpa_s->last_michael_mic_error = t;
2727 wpa_s->mic_errors_seen++;
2728 }
2729
2730
2731 #ifdef CONFIG_TERMINATE_ONLASTIF
2732 static int any_interfaces(struct wpa_supplicant *head)
2733 {
2734 struct wpa_supplicant *wpa_s;
2735
2736 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2737 if (!wpa_s->interface_removed)
2738 return 1;
2739 return 0;
2740 }
2741 #endif /* CONFIG_TERMINATE_ONLASTIF */
2742
2743
2744 static void
2745 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2746 union wpa_event_data *data)
2747 {
2748 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2749 return;
2750
2751 switch (data->interface_status.ievent) {
2752 case EVENT_INTERFACE_ADDED:
2753 if (!wpa_s->interface_removed)
2754 break;
2755 wpa_s->interface_removed = 0;
2756 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2757 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2758 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2759 "driver after interface was added");
2760 }
2761
2762 #ifdef CONFIG_P2P
2763 if (!wpa_s->global->p2p &&
2764 !wpa_s->global->p2p_disabled &&
2765 !wpa_s->conf->p2p_disabled &&
2766 (wpa_s->drv_flags &
2767 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
2768 wpas_p2p_add_p2pdev_interface(
2769 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
2770 wpa_printf(MSG_INFO,
2771 "P2P: Failed to enable P2P Device interface");
2772 /* Try to continue without. P2P will be disabled. */
2773 }
2774 #endif /* CONFIG_P2P */
2775
2776 break;
2777 case EVENT_INTERFACE_REMOVED:
2778 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2779 wpa_s->interface_removed = 1;
2780 wpa_supplicant_mark_disassoc(wpa_s);
2781 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2782 l2_packet_deinit(wpa_s->l2);
2783 wpa_s->l2 = NULL;
2784
2785 #ifdef CONFIG_P2P
2786 if (wpa_s->global->p2p &&
2787 wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
2788 (wpa_s->drv_flags &
2789 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
2790 wpa_dbg(wpa_s, MSG_DEBUG,
2791 "Removing P2P Device interface");
2792 wpa_supplicant_remove_iface(
2793 wpa_s->global, wpa_s->global->p2p_init_wpa_s,
2794 0);
2795 wpa_s->global->p2p_init_wpa_s = NULL;
2796 }
2797 #endif /* CONFIG_P2P */
2798
2799 #ifdef CONFIG_MATCH_IFACE
2800 if (wpa_s->matched) {
2801 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
2802 break;
2803 }
2804 #endif /* CONFIG_MATCH_IFACE */
2805
2806 #ifdef CONFIG_TERMINATE_ONLASTIF
2807 /* check if last interface */
2808 if (!any_interfaces(wpa_s->global->ifaces))
2809 eloop_terminate();
2810 #endif /* CONFIG_TERMINATE_ONLASTIF */
2811 break;
2812 }
2813 }
2814
2815
2816 #ifdef CONFIG_PEERKEY
2817 static void
2818 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2819 union wpa_event_data *data)
2820 {
2821 if (data == NULL)
2822 return;
2823 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2824 }
2825 #endif /* CONFIG_PEERKEY */
2826
2827
2828 #ifdef CONFIG_TDLS
2829 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2830 union wpa_event_data *data)
2831 {
2832 if (data == NULL)
2833 return;
2834 switch (data->tdls.oper) {
2835 case TDLS_REQUEST_SETUP:
2836 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2837 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2838 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2839 else
2840 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2841 break;
2842 case TDLS_REQUEST_TEARDOWN:
2843 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2844 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2845 data->tdls.reason_code);
2846 else
2847 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2848 data->tdls.peer);
2849 break;
2850 case TDLS_REQUEST_DISCOVER:
2851 wpa_tdls_send_discovery_request(wpa_s->wpa,
2852 data->tdls.peer);
2853 break;
2854 }
2855 }
2856 #endif /* CONFIG_TDLS */
2857
2858
2859 #ifdef CONFIG_WNM
2860 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2861 union wpa_event_data *data)
2862 {
2863 if (data == NULL)
2864 return;
2865 switch (data->wnm.oper) {
2866 case WNM_OPER_SLEEP:
2867 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2868 "(action=%d, intval=%d)",
2869 data->wnm.sleep_action, data->wnm.sleep_intval);
2870 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2871 data->wnm.sleep_intval, NULL);
2872 break;
2873 }
2874 }
2875 #endif /* CONFIG_WNM */
2876
2877
2878 #ifdef CONFIG_IEEE80211R
2879 static void
2880 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2881 union wpa_event_data *data)
2882 {
2883 if (data == NULL)
2884 return;
2885
2886 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2887 data->ft_ies.ies_len,
2888 data->ft_ies.ft_action,
2889 data->ft_ies.target_ap,
2890 data->ft_ies.ric_ies,
2891 data->ft_ies.ric_ies_len) < 0) {
2892 /* TODO: prevent MLME/driver from trying to associate? */
2893 }
2894 }
2895 #endif /* CONFIG_IEEE80211R */
2896
2897
2898 #ifdef CONFIG_IBSS_RSN
2899 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2900 union wpa_event_data *data)
2901 {
2902 struct wpa_ssid *ssid;
2903 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2904 return;
2905 if (data == NULL)
2906 return;
2907 ssid = wpa_s->current_ssid;
2908 if (ssid == NULL)
2909 return;
2910 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2911 return;
2912
2913 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2914 }
2915
2916
2917 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2918 union wpa_event_data *data)
2919 {
2920 struct wpa_ssid *ssid = wpa_s->current_ssid;
2921
2922 if (ssid == NULL)
2923 return;
2924
2925 /* check if the ssid is correctly configured as IBSS/RSN */
2926 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2927 return;
2928
2929 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2930 data->rx_mgmt.frame_len);
2931 }
2932 #endif /* CONFIG_IBSS_RSN */
2933
2934
2935 #ifdef CONFIG_IEEE80211R
2936 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2937 size_t len)
2938 {
2939 const u8 *sta_addr, *target_ap_addr;
2940 u16 status;
2941
2942 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2943 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2944 return; /* only SME case supported for now */
2945 if (len < 1 + 2 * ETH_ALEN + 2)
2946 return;
2947 if (data[0] != 2)
2948 return; /* Only FT Action Response is supported for now */
2949 sta_addr = data + 1;
2950 target_ap_addr = data + 1 + ETH_ALEN;
2951 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2952 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2953 MACSTR " TargetAP " MACSTR " status %u",
2954 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2955
2956 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2957 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2958 " in FT Action Response", MAC2STR(sta_addr));
2959 return;
2960 }
2961
2962 if (status) {
2963 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2964 "failure (status code %d)", status);
2965 /* TODO: report error to FT code(?) */
2966 return;
2967 }
2968
2969 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2970 len - (1 + 2 * ETH_ALEN + 2), 1,
2971 target_ap_addr, NULL, 0) < 0)
2972 return;
2973
2974 #ifdef CONFIG_SME
2975 {
2976 struct wpa_bss *bss;
2977 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2978 if (bss)
2979 wpa_s->sme.freq = bss->freq;
2980 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2981 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2982 WLAN_AUTH_FT);
2983 }
2984 #endif /* CONFIG_SME */
2985 }
2986 #endif /* CONFIG_IEEE80211R */
2987
2988
2989 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2990 struct unprot_deauth *e)
2991 {
2992 #ifdef CONFIG_IEEE80211W
2993 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2994 "dropped: " MACSTR " -> " MACSTR
2995 " (reason code %u)",
2996 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2997 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2998 #endif /* CONFIG_IEEE80211W */
2999 }
3000
3001
3002 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
3003 struct unprot_disassoc *e)
3004 {
3005 #ifdef CONFIG_IEEE80211W
3006 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
3007 "dropped: " MACSTR " -> " MACSTR
3008 " (reason code %u)",
3009 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
3010 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
3011 #endif /* CONFIG_IEEE80211W */
3012 }
3013
3014
3015 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
3016 u16 reason_code, int locally_generated,
3017 const u8 *ie, size_t ie_len, int deauth)
3018 {
3019 #ifdef CONFIG_AP
3020 if (wpa_s->ap_iface && addr) {
3021 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
3022 return;
3023 }
3024
3025 if (wpa_s->ap_iface) {
3026 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
3027 return;
3028 }
3029 #endif /* CONFIG_AP */
3030
3031 if (!locally_generated)
3032 wpa_s->own_disconnect_req = 0;
3033
3034 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
3035
3036 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
3037 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3038 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
3039 eapol_sm_failed(wpa_s->eapol))) &&
3040 !wpa_s->eap_expected_failure))
3041 wpas_auth_failed(wpa_s, "AUTH_FAILED");
3042
3043 #ifdef CONFIG_P2P
3044 if (deauth && reason_code > 0) {
3045 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
3046 locally_generated) > 0) {
3047 /*
3048 * The interface was removed, so cannot continue
3049 * processing any additional operations after this.
3050 */
3051 return;
3052 }
3053 }
3054 #endif /* CONFIG_P2P */
3055
3056 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
3057 locally_generated);
3058 }
3059
3060
3061 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
3062 struct disassoc_info *info)
3063 {
3064 u16 reason_code = 0;
3065 int locally_generated = 0;
3066 const u8 *addr = NULL;
3067 const u8 *ie = NULL;
3068 size_t ie_len = 0;
3069
3070 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
3071
3072 if (info) {
3073 addr = info->addr;
3074 ie = info->ie;
3075 ie_len = info->ie_len;
3076 reason_code = info->reason_code;
3077 locally_generated = info->locally_generated;
3078 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
3079 locally_generated ? " (locally generated)" : "");
3080 if (addr)
3081 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3082 MAC2STR(addr));
3083 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
3084 ie, ie_len);
3085 }
3086
3087 #ifdef CONFIG_AP
3088 if (wpa_s->ap_iface && info && info->addr) {
3089 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
3090 return;
3091 }
3092
3093 if (wpa_s->ap_iface) {
3094 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
3095 return;
3096 }
3097 #endif /* CONFIG_AP */
3098
3099 #ifdef CONFIG_P2P
3100 if (info) {
3101 wpas_p2p_disassoc_notif(
3102 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
3103 locally_generated);
3104 }
3105 #endif /* CONFIG_P2P */
3106
3107 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3108 sme_event_disassoc(wpa_s, info);
3109
3110 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
3111 ie, ie_len, 0);
3112 }
3113
3114
3115 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
3116 struct deauth_info *info)
3117 {
3118 u16 reason_code = 0;
3119 int locally_generated = 0;
3120 const u8 *addr = NULL;
3121 const u8 *ie = NULL;
3122 size_t ie_len = 0;
3123
3124 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
3125
3126 if (info) {
3127 addr = info->addr;
3128 ie = info->ie;
3129 ie_len = info->ie_len;
3130 reason_code = info->reason_code;
3131 locally_generated = info->locally_generated;
3132 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
3133 reason_code,
3134 locally_generated ? " (locally generated)" : "");
3135 if (addr) {
3136 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3137 MAC2STR(addr));
3138 }
3139 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
3140 ie, ie_len);
3141 }
3142
3143 wpa_reset_ft_completed(wpa_s->wpa);
3144
3145 wpas_event_disconnect(wpa_s, addr, reason_code,
3146 locally_generated, ie, ie_len, 1);
3147 }
3148
3149
3150 static const char * reg_init_str(enum reg_change_initiator init)
3151 {
3152 switch (init) {
3153 case REGDOM_SET_BY_CORE:
3154 return "CORE";
3155 case REGDOM_SET_BY_USER:
3156 return "USER";
3157 case REGDOM_SET_BY_DRIVER:
3158 return "DRIVER";
3159 case REGDOM_SET_BY_COUNTRY_IE:
3160 return "COUNTRY_IE";
3161 case REGDOM_BEACON_HINT:
3162 return "BEACON_HINT";
3163 }
3164 return "?";
3165 }
3166
3167
3168 static const char * reg_type_str(enum reg_type type)
3169 {
3170 switch (type) {
3171 case REGDOM_TYPE_UNKNOWN:
3172 return "UNKNOWN";
3173 case REGDOM_TYPE_COUNTRY:
3174 return "COUNTRY";
3175 case REGDOM_TYPE_WORLD:
3176 return "WORLD";
3177 case REGDOM_TYPE_CUSTOM_WORLD:
3178 return "CUSTOM_WORLD";
3179 case REGDOM_TYPE_INTERSECTION:
3180 return "INTERSECTION";
3181 }
3182 return "?";
3183 }
3184
3185
3186 static void wpa_supplicant_update_channel_list(
3187 struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
3188 {
3189 struct wpa_supplicant *ifs;
3190
3191 /*
3192 * To allow backwards compatibility with higher level layers that
3193 * assumed the REGDOM_CHANGE event is sent over the initially added
3194 * interface. Find the highest parent of this interface and use it to
3195 * send the event.
3196 */
3197 for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
3198 ;
3199
3200 wpa_msg(ifs, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
3201 reg_init_str(info->initiator), reg_type_str(info->type),
3202 info->alpha2[0] ? " alpha2=" : "",
3203 info->alpha2[0] ? info->alpha2 : "");
3204
3205 if (wpa_s->drv_priv == NULL)
3206 return; /* Ignore event during drv initialization */
3207
3208 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
3209 radio_list) {
3210 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
3211 ifs->ifname);
3212 free_hw_features(ifs);
3213 ifs->hw.modes = wpa_drv_get_hw_feature_data(
3214 ifs, &ifs->hw.num_modes, &ifs->hw.flags);
3215 }
3216
3217 /* Restart sched_scan with updated channel list */
3218 if (wpa_s->sched_scanning) {
3219 wpa_dbg(wpa_s, MSG_DEBUG,
3220 "Channel list changed restart sched scan.");
3221 wpa_supplicant_cancel_sched_scan(wpa_s);
3222 wpa_supplicant_req_scan(wpa_s, 0, 0);
3223 }
3224
3225 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
3226 }
3227
3228
3229 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
3230 const u8 *frame, size_t len, int freq,
3231 int rssi)
3232 {
3233 const struct ieee80211_mgmt *mgmt;
3234 const u8 *payload;
3235 size_t plen;
3236 u8 category;
3237
3238 if (len < IEEE80211_HDRLEN + 2)
3239 return;
3240
3241 mgmt = (const struct ieee80211_mgmt *) frame;
3242 payload = frame + IEEE80211_HDRLEN;
3243 category = *payload++;
3244 plen = len - IEEE80211_HDRLEN - 1;
3245
3246 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
3247 " Category=%u DataLen=%d freq=%d MHz",
3248 MAC2STR(mgmt->sa), category, (int) plen, freq);
3249
3250 if (category == WLAN_ACTION_WMM) {
3251 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
3252 return;
3253 }
3254
3255 #ifdef CONFIG_IEEE80211R
3256 if (category == WLAN_ACTION_FT) {
3257 ft_rx_action(wpa_s, payload, plen);
3258 return;
3259 }
3260 #endif /* CONFIG_IEEE80211R */
3261
3262 #ifdef CONFIG_IEEE80211W
3263 #ifdef CONFIG_SME
3264 if (category == WLAN_ACTION_SA_QUERY) {
3265 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
3266 return;
3267 }
3268 #endif /* CONFIG_SME */
3269 #endif /* CONFIG_IEEE80211W */
3270
3271 #ifdef CONFIG_WNM
3272 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
3273 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
3274 return;
3275 }
3276 #endif /* CONFIG_WNM */
3277
3278 #ifdef CONFIG_GAS
3279 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
3280 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
3281 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
3282 mgmt->u.action.category,
3283 payload, plen, freq) == 0)
3284 return;
3285 #endif /* CONFIG_GAS */
3286
3287 #ifdef CONFIG_TDLS
3288 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
3289 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
3290 wpa_dbg(wpa_s, MSG_DEBUG,
3291 "TDLS: Received Discovery Response from " MACSTR,
3292 MAC2STR(mgmt->sa));
3293 return;
3294 }
3295 #endif /* CONFIG_TDLS */
3296
3297 #ifdef CONFIG_INTERWORKING
3298 if (category == WLAN_ACTION_QOS && plen >= 1 &&
3299 payload[0] == QOS_QOS_MAP_CONFIG) {
3300 const u8 *pos = payload + 1;
3301 size_t qlen = plen - 1;
3302 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
3303 MACSTR, MAC2STR(mgmt->sa));
3304 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
3305 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
3306 pos[1] <= qlen - 2 && pos[1] >= 16)
3307 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
3308 return;
3309 }
3310 #endif /* CONFIG_INTERWORKING */
3311
3312 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3313 payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
3314 wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
3315 payload + 1,
3316 plen - 1);
3317 return;
3318 }
3319
3320 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3321 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
3322 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
3323 return;
3324 }
3325
3326 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3327 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
3328 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
3329 payload + 1, plen - 1,
3330 rssi);
3331 return;
3332 }
3333
3334 #ifdef CONFIG_FST
3335 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
3336 fst_rx_action(wpa_s->fst, mgmt, len);
3337 return;
3338 }
3339 #endif /* CONFIG_FST */
3340
3341 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
3342 category, payload, plen, freq);
3343 if (wpa_s->ifmsh)
3344 mesh_mpm_action_rx(wpa_s, mgmt, len);
3345 }
3346
3347
3348 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
3349 union wpa_event_data *event)
3350 {
3351 struct wpa_freq_range_list *list;
3352 char *str = NULL;
3353
3354 list = &event->freq_range;
3355
3356 if (list->num)
3357 str = freq_range_list_str(list);
3358 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
3359 str ? str : "");
3360
3361 #ifdef CONFIG_P2P
3362 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
3363 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
3364 __func__);
3365 } else {
3366 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
3367
3368 /*
3369 * The update channel flow will also take care of moving a GO
3370 * from the unsafe frequency if needed.
3371 */
3372 wpas_p2p_update_channel_list(wpa_s,
3373 WPAS_P2P_CHANNEL_UPDATE_AVOID);
3374 }
3375 #endif /* CONFIG_P2P */
3376
3377 os_free(str);
3378 }
3379
3380
3381 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
3382 union wpa_event_data *data)
3383 {
3384 wpa_dbg(wpa_s, MSG_DEBUG,
3385 "Connection authorized by device, previous state %d",
3386 wpa_s->wpa_state);
3387 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
3388 wpa_supplicant_cancel_auth_timeout(wpa_s);
3389 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3390 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3391 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
3392 }
3393 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
3394 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
3395 data->assoc_info.ptk_kck_len,
3396 data->assoc_info.ptk_kek,
3397 data->assoc_info.ptk_kek_len);
3398 }
3399
3400
3401 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
3402 union wpa_event_data *data)
3403 {
3404 struct wpa_supplicant *wpa_s = ctx;
3405 int resched;
3406
3407 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
3408 event != EVENT_INTERFACE_ENABLED &&
3409 event != EVENT_INTERFACE_STATUS &&
3410 event != EVENT_SCAN_RESULTS &&
3411 event != EVENT_SCHED_SCAN_STOPPED) {
3412 wpa_dbg(wpa_s, MSG_DEBUG,
3413 "Ignore event %s (%d) while interface is disabled",
3414 event_to_string(event), event);
3415 return;
3416 }
3417
3418 #ifndef CONFIG_NO_STDOUT_DEBUG
3419 {
3420 int level = MSG_DEBUG;
3421
3422 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
3423 const struct ieee80211_hdr *hdr;
3424 u16 fc;
3425 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
3426 fc = le_to_host16(hdr->frame_control);
3427 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3428 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
3429 level = MSG_EXCESSIVE;
3430 }
3431
3432 wpa_dbg(wpa_s, level, "Event %s (%d) received",
3433 event_to_string(event), event);
3434 }
3435 #endif /* CONFIG_NO_STDOUT_DEBUG */
3436
3437 switch (event) {
3438 case EVENT_AUTH:
3439 #ifdef CONFIG_FST
3440 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
3441 data->auth.ies_len))
3442 wpa_printf(MSG_DEBUG,
3443 "FST: MB IEs updated from auth IE");
3444 #endif /* CONFIG_FST */
3445 sme_event_auth(wpa_s, data);
3446 break;
3447 case EVENT_ASSOC:
3448 wpa_supplicant_event_assoc(wpa_s, data);
3449 if (data && data->assoc_info.authorized)
3450 wpa_supplicant_event_assoc_auth(wpa_s, data);
3451 if (data) {
3452 wpa_msg(wpa_s, MSG_INFO,
3453 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
3454 data->assoc_info.subnet_status);
3455 }
3456 break;
3457 case EVENT_DISASSOC:
3458 wpas_event_disassoc(wpa_s,
3459 data ? &data->disassoc_info : NULL);
3460 break;
3461 case EVENT_DEAUTH:
3462 wpas_event_deauth(wpa_s,
3463 data ? &data->deauth_info : NULL);
3464 break;
3465 case EVENT_MICHAEL_MIC_FAILURE:
3466 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3467 break;
3468 #ifndef CONFIG_NO_SCAN_PROCESSING
3469 case EVENT_SCAN_STARTED:
3470 if (wpa_s->own_scan_requested ||
3471 (data && !data->scan_info.external_scan)) {
3472 struct os_reltime diff;
3473
3474 os_get_reltime(&wpa_s->scan_start_time);
3475 os_reltime_sub(&wpa_s->scan_start_time,
3476 &wpa_s->scan_trigger_time, &diff);
3477 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3478 diff.sec, diff.usec);
3479 wpa_s->own_scan_requested = 0;
3480 wpa_s->own_scan_running = 1;
3481 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3482 wpa_s->manual_scan_use_id) {
3483 wpa_msg_ctrl(wpa_s, MSG_INFO,
3484 WPA_EVENT_SCAN_STARTED "id=%u",
3485 wpa_s->manual_scan_id);
3486 } else {
3487 wpa_msg_ctrl(wpa_s, MSG_INFO,
3488 WPA_EVENT_SCAN_STARTED);
3489 }
3490 } else {
3491 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3492 wpa_s->radio->external_scan_running = 1;
3493 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
3494 }
3495 break;
3496 case EVENT_SCAN_RESULTS:
3497 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3498 wpa_s->scan_res_handler = NULL;
3499 wpa_s->own_scan_running = 0;
3500 wpa_s->radio->external_scan_running = 0;
3501 wpa_s->last_scan_req = NORMAL_SCAN_REQ;
3502 break;
3503 }
3504
3505 if (!(data && data->scan_info.external_scan) &&
3506 os_reltime_initialized(&wpa_s->scan_start_time)) {
3507 struct os_reltime now, diff;
3508 os_get_reltime(&now);
3509 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3510 wpa_s->scan_start_time.sec = 0;
3511 wpa_s->scan_start_time.usec = 0;
3512 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3513 diff.sec, diff.usec);
3514 }
3515 if (wpa_supplicant_event_scan_results(wpa_s, data))
3516 break; /* interface may have been removed */
3517 if (!(data && data->scan_info.external_scan))
3518 wpa_s->own_scan_running = 0;
3519 if (data && data->scan_info.nl_scan_event)
3520 wpa_s->radio->external_scan_running = 0;
3521 radio_work_check_next(wpa_s);
3522 break;
3523 #endif /* CONFIG_NO_SCAN_PROCESSING */
3524 case EVENT_ASSOCINFO:
3525 wpa_supplicant_event_associnfo(wpa_s, data);
3526 break;
3527 case EVENT_INTERFACE_STATUS:
3528 wpa_supplicant_event_interface_status(wpa_s, data);
3529 break;
3530 case EVENT_PMKID_CANDIDATE:
3531 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3532 break;
3533 #ifdef CONFIG_PEERKEY
3534 case EVENT_STKSTART:
3535 wpa_supplicant_event_stkstart(wpa_s, data);
3536 break;
3537 #endif /* CONFIG_PEERKEY */
3538 #ifdef CONFIG_TDLS
3539 case EVENT_TDLS:
3540 wpa_supplicant_event_tdls(wpa_s, data);
3541 break;
3542 #endif /* CONFIG_TDLS */
3543 #ifdef CONFIG_WNM
3544 case EVENT_WNM:
3545 wpa_supplicant_event_wnm(wpa_s, data);
3546 break;
3547 #endif /* CONFIG_WNM */
3548 #ifdef CONFIG_IEEE80211R
3549 case EVENT_FT_RESPONSE:
3550 wpa_supplicant_event_ft_response(wpa_s, data);
3551 break;
3552 #endif /* CONFIG_IEEE80211R */
3553 #ifdef CONFIG_IBSS_RSN
3554 case EVENT_IBSS_RSN_START:
3555 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3556 break;
3557 #endif /* CONFIG_IBSS_RSN */
3558 case EVENT_ASSOC_REJECT:
3559 if (data->assoc_reject.bssid)
3560 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3561 "bssid=" MACSTR " status_code=%u%s",
3562 MAC2STR(data->assoc_reject.bssid),
3563 data->assoc_reject.status_code,
3564 data->assoc_reject.timed_out ? " timeout" : "");
3565 else
3566 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3567 "status_code=%u%s",
3568 data->assoc_reject.status_code,
3569 data->assoc_reject.timed_out ? " timeout" : "");
3570 wpa_s->assoc_status_code = data->assoc_reject.status_code;
3571 wpas_notify_assoc_status_code(wpa_s);
3572 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3573 sme_event_assoc_reject(wpa_s, data);
3574 else {
3575 const u8 *bssid = data->assoc_reject.bssid;
3576 if (bssid == NULL || is_zero_ether_addr(bssid))
3577 bssid = wpa_s->pending_bssid;
3578 wpas_connection_failed(wpa_s, bssid);
3579 wpa_supplicant_mark_disassoc(wpa_s);
3580 }
3581 break;
3582 case EVENT_AUTH_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 AUTH_TIMED_OUT in mesh configuration");
3588 break;
3589 }
3590 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3591 sme_event_auth_timed_out(wpa_s, data);
3592 break;
3593 case EVENT_ASSOC_TIMED_OUT:
3594 /* It is possible to get this event from earlier connection */
3595 if (wpa_s->current_ssid &&
3596 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3597 wpa_dbg(wpa_s, MSG_DEBUG,
3598 "Ignore ASSOC_TIMED_OUT in mesh configuration");
3599 break;
3600 }
3601 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3602 sme_event_assoc_timed_out(wpa_s, data);
3603 break;
3604 case EVENT_TX_STATUS:
3605 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3606 " type=%d stype=%d",
3607 MAC2STR(data->tx_status.dst),
3608 data->tx_status.type, data->tx_status.stype);
3609 #ifdef CONFIG_AP
3610 if (wpa_s->ap_iface == NULL) {
3611 #ifdef CONFIG_OFFCHANNEL
3612 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3613 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
3614 offchannel_send_action_tx_status(
3615 wpa_s, data->tx_status.dst,
3616 data->tx_status.data,
3617 data->tx_status.data_len,
3618 data->tx_status.ack ?
3619 OFFCHANNEL_SEND_ACTION_SUCCESS :
3620 OFFCHANNEL_SEND_ACTION_NO_ACK);
3621 #endif /* CONFIG_OFFCHANNEL */
3622 break;
3623 }
3624 #endif /* CONFIG_AP */
3625 #ifdef CONFIG_OFFCHANNEL
3626 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3627 MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
3628 /*
3629 * Catch TX status events for Action frames we sent via group
3630 * interface in GO mode, or via standalone AP interface.
3631 * Note, wpa_s->p2pdev will be the same as wpa_s->parent,
3632 * except when the primary interface is used as a GO interface
3633 * (for drivers which do not have group interface concurrency)
3634 */
3635 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3636 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3637 os_memcmp(wpa_s->p2pdev->pending_action_dst,
3638 data->tx_status.dst, ETH_ALEN) == 0) {
3639 offchannel_send_action_tx_status(
3640 wpa_s->p2pdev, data->tx_status.dst,
3641 data->tx_status.data,
3642 data->tx_status.data_len,
3643 data->tx_status.ack ?
3644 OFFCHANNEL_SEND_ACTION_SUCCESS :
3645 OFFCHANNEL_SEND_ACTION_NO_ACK);
3646 break;
3647 }
3648 #endif /* CONFIG_OFFCHANNEL */
3649 #ifdef CONFIG_AP
3650 switch (data->tx_status.type) {
3651 case WLAN_FC_TYPE_MGMT:
3652 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3653 data->tx_status.data_len,
3654 data->tx_status.stype,
3655 data->tx_status.ack);
3656 break;
3657 case WLAN_FC_TYPE_DATA:
3658 ap_tx_status(wpa_s, data->tx_status.dst,
3659 data->tx_status.data,
3660 data->tx_status.data_len,
3661 data->tx_status.ack);
3662 break;
3663 }
3664 #endif /* CONFIG_AP */
3665 break;
3666 #ifdef CONFIG_AP
3667 case EVENT_EAPOL_TX_STATUS:
3668 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3669 data->eapol_tx_status.data,
3670 data->eapol_tx_status.data_len,
3671 data->eapol_tx_status.ack);
3672 break;
3673 case EVENT_DRIVER_CLIENT_POLL_OK:
3674 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3675 break;
3676 case EVENT_RX_FROM_UNKNOWN:
3677 if (wpa_s->ap_iface == NULL)
3678 break;
3679 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3680 data->rx_from_unknown.wds);
3681 break;
3682 case EVENT_CH_SWITCH:
3683 if (!data || !wpa_s->current_ssid)
3684 break;
3685
3686 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CHANNEL_SWITCH
3687 "freq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
3688 data->ch_switch.freq,
3689 data->ch_switch.ht_enabled,
3690 data->ch_switch.ch_offset,
3691 channel_width_to_string(data->ch_switch.ch_width),
3692 data->ch_switch.cf1,
3693 data->ch_switch.cf2);
3694
3695 wpa_s->assoc_freq = data->ch_switch.freq;
3696 wpa_s->current_ssid->frequency = data->ch_switch.freq;
3697
3698 if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
3699 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
3700 wpa_s->current_ssid->mode ==
3701 WPAS_MODE_P2P_GROUP_FORMATION) {
3702 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3703 data->ch_switch.ht_enabled,
3704 data->ch_switch.ch_offset,
3705 data->ch_switch.ch_width,
3706 data->ch_switch.cf1,
3707 data->ch_switch.cf2);
3708 }
3709
3710 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
3711 break;
3712 #ifdef NEED_AP_MLME
3713 case EVENT_DFS_RADAR_DETECTED:
3714 if (data)
3715 wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event);
3716 break;
3717 case EVENT_DFS_CAC_STARTED:
3718 if (data)
3719 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
3720 break;
3721 case EVENT_DFS_CAC_FINISHED:
3722 if (data)
3723 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
3724 break;
3725 case EVENT_DFS_CAC_ABORTED:
3726 if (data)
3727 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
3728 break;
3729 case EVENT_DFS_NOP_FINISHED:
3730 if (data)
3731 wpas_event_dfs_cac_nop_finished(wpa_s,
3732 &data->dfs_event);
3733 break;
3734 #endif /* NEED_AP_MLME */
3735 #endif /* CONFIG_AP */
3736 case EVENT_RX_MGMT: {
3737 u16 fc, stype;
3738 const struct ieee80211_mgmt *mgmt;
3739
3740 #ifdef CONFIG_TESTING_OPTIONS
3741 if (wpa_s->ext_mgmt_frame_handling) {
3742 struct rx_mgmt *rx = &data->rx_mgmt;
3743 size_t hex_len = 2 * rx->frame_len + 1;
3744 char *hex = os_malloc(hex_len);
3745 if (hex) {
3746 wpa_snprintf_hex(hex, hex_len,
3747 rx->frame, rx->frame_len);
3748 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3749 rx->freq, rx->datarate, rx->ssi_signal,
3750 hex);
3751 os_free(hex);
3752 }
3753 break;
3754 }
3755 #endif /* CONFIG_TESTING_OPTIONS */
3756
3757 mgmt = (const struct ieee80211_mgmt *)
3758 data->rx_mgmt.frame;
3759 fc = le_to_host16(mgmt->frame_control);
3760 stype = WLAN_FC_GET_STYPE(fc);
3761
3762 #ifdef CONFIG_AP
3763 if (wpa_s->ap_iface == NULL) {
3764 #endif /* CONFIG_AP */
3765 #ifdef CONFIG_P2P
3766 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3767 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
3768 const u8 *src = mgmt->sa;
3769 const u8 *ie;
3770 size_t ie_len;
3771
3772 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
3773 ie_len = data->rx_mgmt.frame_len -
3774 IEEE80211_HDRLEN;
3775 wpas_p2p_probe_req_rx(
3776 wpa_s, src, mgmt->da,
3777 mgmt->bssid, ie, ie_len,
3778 data->rx_mgmt.freq,
3779 data->rx_mgmt.ssi_signal);
3780 break;
3781 }
3782 #endif /* CONFIG_P2P */
3783 #ifdef CONFIG_IBSS_RSN
3784 if (wpa_s->current_ssid &&
3785 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3786 stype == WLAN_FC_STYPE_AUTH &&
3787 data->rx_mgmt.frame_len >= 30) {
3788 wpa_supplicant_event_ibss_auth(wpa_s, data);
3789 break;
3790 }
3791 #endif /* CONFIG_IBSS_RSN */
3792
3793 if (stype == WLAN_FC_STYPE_ACTION) {
3794 wpas_event_rx_mgmt_action(
3795 wpa_s, data->rx_mgmt.frame,
3796 data->rx_mgmt.frame_len,
3797 data->rx_mgmt.freq,
3798 data->rx_mgmt.ssi_signal);
3799 break;
3800 }
3801
3802 if (wpa_s->ifmsh) {
3803 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3804 break;
3805 }
3806
3807 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3808 "management frame in non-AP mode");
3809 break;
3810 #ifdef CONFIG_AP
3811 }
3812
3813 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3814 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
3815 const u8 *ie;
3816 size_t ie_len;
3817
3818 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
3819 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
3820
3821 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3822 mgmt->bssid, ie, ie_len,
3823 data->rx_mgmt.ssi_signal);
3824 }
3825
3826 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
3827 #endif /* CONFIG_AP */
3828 break;
3829 }
3830 case EVENT_RX_PROBE_REQ:
3831 if (data->rx_probe_req.sa == NULL ||
3832 data->rx_probe_req.ie == NULL)
3833 break;
3834 #ifdef CONFIG_AP
3835 if (wpa_s->ap_iface) {
3836 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3837 data->rx_probe_req.sa,
3838 data->rx_probe_req.da,
3839 data->rx_probe_req.bssid,
3840 data->rx_probe_req.ie,
3841 data->rx_probe_req.ie_len,
3842 data->rx_probe_req.ssi_signal);
3843 break;
3844 }
3845 #endif /* CONFIG_AP */
3846 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
3847 data->rx_probe_req.da,
3848 data->rx_probe_req.bssid,
3849 data->rx_probe_req.ie,
3850 data->rx_probe_req.ie_len,
3851 0,
3852 data->rx_probe_req.ssi_signal);
3853 break;
3854 case EVENT_REMAIN_ON_CHANNEL:
3855 #ifdef CONFIG_OFFCHANNEL
3856 offchannel_remain_on_channel_cb(
3857 wpa_s, data->remain_on_channel.freq,
3858 data->remain_on_channel.duration);
3859 #endif /* CONFIG_OFFCHANNEL */
3860 wpas_p2p_remain_on_channel_cb(
3861 wpa_s, data->remain_on_channel.freq,
3862 data->remain_on_channel.duration);
3863 break;
3864 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
3865 #ifdef CONFIG_OFFCHANNEL
3866 offchannel_cancel_remain_on_channel_cb(
3867 wpa_s, data->remain_on_channel.freq);
3868 #endif /* CONFIG_OFFCHANNEL */
3869 wpas_p2p_cancel_remain_on_channel_cb(
3870 wpa_s, data->remain_on_channel.freq);
3871 break;
3872 case EVENT_EAPOL_RX:
3873 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3874 data->eapol_rx.data,
3875 data->eapol_rx.data_len);
3876 break;
3877 case EVENT_SIGNAL_CHANGE:
3878 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3879 "above=%d signal=%d noise=%d txrate=%d",
3880 data->signal_change.above_threshold,
3881 data->signal_change.current_signal,
3882 data->signal_change.current_noise,
3883 data->signal_change.current_txrate);
3884 wpa_bss_update_level(wpa_s->current_bss,
3885 data->signal_change.current_signal);
3886 bgscan_notify_signal_change(
3887 wpa_s, data->signal_change.above_threshold,
3888 data->signal_change.current_signal,
3889 data->signal_change.current_noise,
3890 data->signal_change.current_txrate);
3891 break;
3892 case EVENT_INTERFACE_ENABLED:
3893 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
3894 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3895 wpa_supplicant_update_mac_addr(wpa_s);
3896 if (wpa_s->p2p_mgmt) {
3897 wpa_supplicant_set_state(wpa_s,
3898 WPA_DISCONNECTED);
3899 break;
3900 }
3901
3902 #ifdef CONFIG_AP
3903 if (!wpa_s->ap_iface) {
3904 wpa_supplicant_set_state(wpa_s,
3905 WPA_DISCONNECTED);
3906 wpa_s->scan_req = NORMAL_SCAN_REQ;
3907 wpa_supplicant_req_scan(wpa_s, 0, 0);
3908 } else
3909 wpa_supplicant_set_state(wpa_s,
3910 WPA_COMPLETED);
3911 #else /* CONFIG_AP */
3912 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3913 wpa_supplicant_req_scan(wpa_s, 0, 0);
3914 #endif /* CONFIG_AP */
3915 }
3916 break;
3917 case EVENT_INTERFACE_DISABLED:
3918 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
3919 #ifdef CONFIG_P2P
3920 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3921 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3922 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
3923 /*
3924 * Mark interface disabled if this happens to end up not
3925 * being removed as a separate P2P group interface.
3926 */
3927 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3928 /*
3929 * The interface was externally disabled. Remove
3930 * it assuming an external entity will start a
3931 * new session if needed.
3932 */
3933 if (wpa_s->current_ssid &&
3934 wpa_s->current_ssid->p2p_group)
3935 wpas_p2p_interface_unavailable(wpa_s);
3936 else
3937 wpas_p2p_disconnect(wpa_s);
3938 /*
3939 * wpa_s instance may have been freed, so must not use
3940 * it here anymore.
3941 */
3942 break;
3943 }
3944 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3945 p2p_in_progress(wpa_s->global->p2p) > 1) {
3946 /* This radio work will be cancelled, so clear P2P
3947 * state as well.
3948 */
3949 p2p_stop_find(wpa_s->global->p2p);
3950 }
3951 #endif /* CONFIG_P2P */
3952
3953 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3954 /*
3955 * Indicate disconnection to keep ctrl_iface events
3956 * consistent.
3957 */
3958 wpa_supplicant_event_disassoc(
3959 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3960 }
3961 wpa_supplicant_mark_disassoc(wpa_s);
3962 radio_remove_works(wpa_s, NULL, 0);
3963
3964 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3965 break;
3966 case EVENT_CHANNEL_LIST_CHANGED:
3967 wpa_supplicant_update_channel_list(
3968 wpa_s, &data->channel_list_changed);
3969 break;
3970 case EVENT_INTERFACE_UNAVAILABLE:
3971 wpas_p2p_interface_unavailable(wpa_s);
3972 break;
3973 case EVENT_BEST_CHANNEL:
3974 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3975 "(%d %d %d)",
3976 data->best_chan.freq_24, data->best_chan.freq_5,
3977 data->best_chan.freq_overall);
3978 wpa_s->best_24_freq = data->best_chan.freq_24;
3979 wpa_s->best_5_freq = data->best_chan.freq_5;
3980 wpa_s->best_overall_freq = data->best_chan.freq_overall;
3981 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3982 data->best_chan.freq_5,
3983 data->best_chan.freq_overall);
3984 break;
3985 case EVENT_UNPROT_DEAUTH:
3986 wpa_supplicant_event_unprot_deauth(wpa_s,
3987 &data->unprot_deauth);
3988 break;
3989 case EVENT_UNPROT_DISASSOC:
3990 wpa_supplicant_event_unprot_disassoc(wpa_s,
3991 &data->unprot_disassoc);
3992 break;
3993 case EVENT_STATION_LOW_ACK:
3994 #ifdef CONFIG_AP
3995 if (wpa_s->ap_iface && data)
3996 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3997 data->low_ack.addr);
3998 #endif /* CONFIG_AP */
3999 #ifdef CONFIG_TDLS
4000 if (data)
4001 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
4002 data->low_ack.addr);
4003 #endif /* CONFIG_TDLS */
4004 break;
4005 case EVENT_IBSS_PEER_LOST:
4006 #ifdef CONFIG_IBSS_RSN
4007 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
4008 #endif /* CONFIG_IBSS_RSN */
4009 break;
4010 case EVENT_DRIVER_GTK_REKEY:
4011 if (os_memcmp(data->driver_gtk_rekey.bssid,
4012 wpa_s->bssid, ETH_ALEN))
4013 break;
4014 if (!wpa_s->wpa)
4015 break;
4016 wpa_sm_update_replay_ctr(wpa_s->wpa,
4017 data->driver_gtk_rekey.replay_ctr);
4018 break;
4019 case EVENT_SCHED_SCAN_STOPPED:
4020 wpa_s->sched_scanning = 0;
4021 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
4022 wpa_supplicant_notify_scanning(wpa_s, 0);
4023
4024 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
4025 break;
4026
4027 /*
4028 * Start a new sched scan to continue searching for more SSIDs
4029 * either if timed out or PNO schedule scan is pending.
4030 */
4031 if (wpa_s->sched_scan_timed_out) {
4032 wpa_supplicant_req_sched_scan(wpa_s);
4033 } else if (wpa_s->pno_sched_pending) {
4034 wpa_s->pno_sched_pending = 0;
4035 wpas_start_pno(wpa_s);
4036 } else if (resched) {
4037 wpa_supplicant_req_scan(wpa_s, 0, 0);
4038 }
4039
4040 break;
4041 case EVENT_WPS_BUTTON_PUSHED:
4042 #ifdef CONFIG_WPS
4043 wpas_wps_start_pbc(wpa_s, NULL, 0);
4044 #endif /* CONFIG_WPS */
4045 break;
4046 case EVENT_AVOID_FREQUENCIES:
4047 wpa_supplicant_notify_avoid_freq(wpa_s, data);
4048 break;
4049 case EVENT_CONNECT_FAILED_REASON:
4050 #ifdef CONFIG_AP
4051 if (!wpa_s->ap_iface || !data)
4052 break;
4053 hostapd_event_connect_failed_reason(
4054 wpa_s->ap_iface->bss[0],
4055 data->connect_failed_reason.addr,
4056 data->connect_failed_reason.code);
4057 #endif /* CONFIG_AP */
4058 break;
4059 case EVENT_NEW_PEER_CANDIDATE:
4060 #ifdef CONFIG_MESH
4061 if (!wpa_s->ifmsh || !data)
4062 break;
4063 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
4064 data->mesh_peer.ies,
4065 data->mesh_peer.ie_len);
4066 #endif /* CONFIG_MESH */
4067 break;
4068 case EVENT_SURVEY:
4069 #ifdef CONFIG_AP
4070 if (!wpa_s->ap_iface)
4071 break;
4072 hostapd_event_get_survey(wpa_s->ap_iface,
4073 &data->survey_results);
4074 #endif /* CONFIG_AP */
4075 break;
4076 case EVENT_ACS_CHANNEL_SELECTED:
4077 #ifdef CONFIG_ACS
4078 if (!wpa_s->ap_iface)
4079 break;
4080 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
4081 &data->acs_selected_channels);
4082 #endif /* CONFIG_ACS */
4083 break;
4084 case EVENT_P2P_LO_STOP:
4085 #ifdef CONFIG_P2P
4086 wpa_s->p2p_lo_started = 0;
4087 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP
4088 P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d",
4089 data->p2p_lo_stop.reason_code);
4090 #endif /* CONFIG_P2P */
4091 break;
4092 default:
4093 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
4094 break;
4095 }
4096 }
4097
4098
4099 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
4100 union wpa_event_data *data)
4101 {
4102 struct wpa_supplicant *wpa_s;
4103
4104 if (event != EVENT_INTERFACE_STATUS)
4105 return;
4106
4107 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
4108 if (wpa_s && wpa_s->driver->get_ifindex) {
4109 unsigned int ifindex;
4110
4111 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
4112 if (ifindex != data->interface_status.ifindex) {
4113 wpa_dbg(wpa_s, MSG_DEBUG,
4114 "interface status ifindex %d mismatch (%d)",
4115 ifindex, data->interface_status.ifindex);
4116 return;
4117 }
4118 }
4119 #ifdef CONFIG_MATCH_IFACE
4120 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
4121 struct wpa_interface *wpa_i;
4122
4123 wpa_i = wpa_supplicant_match_iface(
4124 ctx, data->interface_status.ifname);
4125 if (!wpa_i)
4126 return;
4127 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
4128 os_free(wpa_i);
4129 if (wpa_s)
4130 wpa_s->matched = 1;
4131 }
4132 #endif /* CONFIG_MATCH_IFACE */
4133
4134 if (wpa_s)
4135 wpa_supplicant_event(wpa_s, event, data);
4136 }
Unnamed repository; edit this file 'description' to name the repository.