]> 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
FILS: Association Response processing (STA)
[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 #ifdef CONFIG_TESTING_OPTIONS
1105 if (wpa_s->ignore_assoc_disallow)
1106 goto skip_assoc_disallow;
1107 #endif /* CONFIG_TESTING_OPTIONS */
1108 assoc_disallow = wpas_mbo_get_bss_attr(
1109 bss, MBO_ATTR_ID_ASSOC_DISALLOW);
1110 if (assoc_disallow && assoc_disallow[1] >= 1) {
1111 wpa_dbg(wpa_s, MSG_DEBUG,
1112 " skip - MBO association disallowed (reason %u)",
1113 assoc_disallow[2]);
1114 continue;
1115 }
1116
1117 if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) {
1118 wpa_dbg(wpa_s, MSG_DEBUG,
1119 " skip - MBO retry delay has not passed yet");
1120 continue;
1121 }
1122 #ifdef CONFIG_TESTING_OPTIONS
1123 skip_assoc_disallow:
1124 #endif /* CONFIG_TESTING_OPTIONS */
1125 #endif /* CONFIG_MBO */
1126
1127 /* Matching configuration found */
1128 return ssid;
1129 }
1130
1131 /* No matching configuration found */
1132 return NULL;
1133 }
1134
1135
1136 static struct wpa_bss *
1137 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1138 struct wpa_ssid *group,
1139 struct wpa_ssid **selected_ssid,
1140 int only_first_ssid)
1141 {
1142 unsigned int i;
1143
1144 if (only_first_ssid)
1145 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1146 group->id);
1147 else
1148 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1149 group->priority);
1150
1151 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1152 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1153 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1154 only_first_ssid);
1155 if (!*selected_ssid)
1156 continue;
1157 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
1158 " ssid='%s'",
1159 MAC2STR(bss->bssid),
1160 wpa_ssid_txt(bss->ssid, bss->ssid_len));
1161 return bss;
1162 }
1163
1164 return NULL;
1165 }
1166
1167
1168 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1169 struct wpa_ssid **selected_ssid)
1170 {
1171 struct wpa_bss *selected = NULL;
1172 int prio;
1173 struct wpa_ssid *next_ssid = NULL;
1174 struct wpa_ssid *ssid;
1175
1176 if (wpa_s->last_scan_res == NULL ||
1177 wpa_s->last_scan_res_used == 0)
1178 return NULL; /* no scan results from last update */
1179
1180 if (wpa_s->next_ssid) {
1181 /* check that next_ssid is still valid */
1182 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1183 if (ssid == wpa_s->next_ssid)
1184 break;
1185 }
1186 next_ssid = ssid;
1187 wpa_s->next_ssid = NULL;
1188 }
1189
1190 while (selected == NULL) {
1191 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1192 if (next_ssid && next_ssid->priority ==
1193 wpa_s->conf->pssid[prio]->priority) {
1194 selected = wpa_supplicant_select_bss(
1195 wpa_s, next_ssid, selected_ssid, 1);
1196 if (selected)
1197 break;
1198 }
1199 selected = wpa_supplicant_select_bss(
1200 wpa_s, wpa_s->conf->pssid[prio],
1201 selected_ssid, 0);
1202 if (selected)
1203 break;
1204 }
1205
1206 if (selected == NULL && wpa_s->blacklist &&
1207 !wpa_s->countermeasures) {
1208 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1209 "blacklist and try again");
1210 wpa_blacklist_clear(wpa_s);
1211 wpa_s->blacklist_cleared++;
1212 } else if (selected == NULL)
1213 break;
1214 }
1215
1216 ssid = *selected_ssid;
1217 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1218 !ssid->passphrase && !ssid->ext_psk) {
1219 const char *field_name, *txt = NULL;
1220
1221 wpa_dbg(wpa_s, MSG_DEBUG,
1222 "PSK/passphrase not yet available for the selected network");
1223
1224 wpas_notify_network_request(wpa_s, ssid,
1225 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1226
1227 field_name = wpa_supplicant_ctrl_req_to_string(
1228 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1229 if (field_name == NULL)
1230 return NULL;
1231
1232 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1233
1234 selected = NULL;
1235 }
1236
1237 return selected;
1238 }
1239
1240
1241 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1242 int timeout_sec, int timeout_usec)
1243 {
1244 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1245 /*
1246 * No networks are enabled; short-circuit request so
1247 * we don't wait timeout seconds before transitioning
1248 * to INACTIVE state.
1249 */
1250 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1251 "since there are no enabled networks");
1252 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1253 return;
1254 }
1255
1256 wpa_s->scan_for_connection = 1;
1257 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1258 }
1259
1260
1261 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1262 struct wpa_bss *selected,
1263 struct wpa_ssid *ssid)
1264 {
1265 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1266 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1267 "PBC session overlap");
1268 wpas_notify_wps_event_pbc_overlap(wpa_s);
1269 #ifdef CONFIG_P2P
1270 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1271 wpa_s->p2p_in_provisioning) {
1272 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1273 wpa_s, NULL);
1274 return -1;
1275 }
1276 #endif /* CONFIG_P2P */
1277
1278 #ifdef CONFIG_WPS
1279 wpas_wps_pbc_overlap(wpa_s);
1280 wpas_wps_cancel(wpa_s);
1281 #endif /* CONFIG_WPS */
1282 return -1;
1283 }
1284
1285 wpa_msg(wpa_s, MSG_DEBUG,
1286 "Considering connect request: reassociate: %d selected: "
1287 MACSTR " bssid: " MACSTR " pending: " MACSTR
1288 " wpa_state: %s ssid=%p current_ssid=%p",
1289 wpa_s->reassociate, MAC2STR(selected->bssid),
1290 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1291 wpa_supplicant_state_txt(wpa_s->wpa_state),
1292 ssid, wpa_s->current_ssid);
1293
1294 /*
1295 * Do not trigger new association unless the BSSID has changed or if
1296 * reassociation is requested. If we are in process of associating with
1297 * the selected BSSID, do not trigger new attempt.
1298 */
1299 if (wpa_s->reassociate ||
1300 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1301 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1302 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1303 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1304 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1305 0) ||
1306 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1307 ssid != wpa_s->current_ssid)))) {
1308 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1309 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1310 return 0;
1311 }
1312 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1313 MAC2STR(selected->bssid));
1314 wpa_supplicant_associate(wpa_s, selected, ssid);
1315 } else {
1316 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1317 "connect with the selected AP");
1318 }
1319
1320 return 0;
1321 }
1322
1323
1324 static struct wpa_ssid *
1325 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1326 {
1327 int prio;
1328 struct wpa_ssid *ssid;
1329
1330 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1331 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1332 {
1333 if (wpas_network_disabled(wpa_s, ssid))
1334 continue;
1335 if (ssid->mode == IEEE80211_MODE_IBSS ||
1336 ssid->mode == IEEE80211_MODE_AP ||
1337 ssid->mode == IEEE80211_MODE_MESH)
1338 return ssid;
1339 }
1340 }
1341 return NULL;
1342 }
1343
1344
1345 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1346 * on BSS added and BSS changed events */
1347 static void wpa_supplicant_rsn_preauth_scan_results(
1348 struct wpa_supplicant *wpa_s)
1349 {
1350 struct wpa_bss *bss;
1351
1352 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1353 return;
1354
1355 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1356 const u8 *ssid, *rsn;
1357
1358 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1359 if (ssid == NULL)
1360 continue;
1361
1362 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1363 if (rsn == NULL)
1364 continue;
1365
1366 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1367 }
1368
1369 }
1370
1371
1372 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1373 struct wpa_bss *selected,
1374 struct wpa_ssid *ssid)
1375 {
1376 struct wpa_bss *current_bss = NULL;
1377 #ifndef CONFIG_NO_ROAMING
1378 int min_diff;
1379 int to_5ghz;
1380 #endif /* CONFIG_NO_ROAMING */
1381
1382 if (wpa_s->reassociate)
1383 return 1; /* explicit request to reassociate */
1384 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1385 return 1; /* we are not associated; continue */
1386 if (wpa_s->current_ssid == NULL)
1387 return 1; /* unknown current SSID */
1388 if (wpa_s->current_ssid != ssid)
1389 return 1; /* different network block */
1390
1391 if (wpas_driver_bss_selection(wpa_s))
1392 return 0; /* Driver-based roaming */
1393
1394 if (wpa_s->current_ssid->ssid)
1395 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1396 wpa_s->current_ssid->ssid,
1397 wpa_s->current_ssid->ssid_len);
1398 if (!current_bss)
1399 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1400
1401 if (!current_bss)
1402 return 1; /* current BSS not seen in scan results */
1403
1404 if (current_bss == selected)
1405 return 0;
1406
1407 if (selected->last_update_idx > current_bss->last_update_idx)
1408 return 1; /* current BSS not seen in the last scan */
1409
1410 #ifndef CONFIG_NO_ROAMING
1411 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1412 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1413 " level=%d snr=%d est_throughput=%u",
1414 MAC2STR(current_bss->bssid), current_bss->level,
1415 current_bss->snr, current_bss->est_throughput);
1416 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1417 " level=%d snr=%d est_throughput=%u",
1418 MAC2STR(selected->bssid), selected->level,
1419 selected->snr, selected->est_throughput);
1420
1421 if (wpa_s->current_ssid->bssid_set &&
1422 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1423 0) {
1424 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1425 "has preferred BSSID");
1426 return 1;
1427 }
1428
1429 if (selected->est_throughput > current_bss->est_throughput + 5000) {
1430 wpa_dbg(wpa_s, MSG_DEBUG,
1431 "Allow reassociation - selected BSS has better estimated throughput");
1432 return 1;
1433 }
1434
1435 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
1436
1437 if (current_bss->level < 0 &&
1438 current_bss->level > selected->level + to_5ghz * 2) {
1439 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1440 "signal level");
1441 return 0;
1442 }
1443
1444 min_diff = 2;
1445 if (current_bss->level < 0) {
1446 if (current_bss->level < -85)
1447 min_diff = 1;
1448 else if (current_bss->level < -80)
1449 min_diff = 2;
1450 else if (current_bss->level < -75)
1451 min_diff = 3;
1452 else if (current_bss->level < -70)
1453 min_diff = 4;
1454 else
1455 min_diff = 5;
1456 }
1457 if (to_5ghz) {
1458 /* Make it easier to move to 5 GHz band */
1459 if (min_diff > 2)
1460 min_diff -= 2;
1461 else
1462 min_diff = 0;
1463 }
1464 if (abs(current_bss->level - selected->level) < min_diff) {
1465 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1466 "in signal level");
1467 return 0;
1468 }
1469
1470 return 1;
1471 #else /* CONFIG_NO_ROAMING */
1472 return 0;
1473 #endif /* CONFIG_NO_ROAMING */
1474 }
1475
1476
1477 /*
1478 * Return a negative value if no scan results could be fetched or if scan
1479 * results should not be shared with other virtual interfaces.
1480 * Return 0 if scan results were fetched and may be shared with other
1481 * interfaces.
1482 * Return 1 if scan results may be shared with other virtual interfaces but may
1483 * not trigger any operations.
1484 * Return 2 if the interface was removed and cannot be used.
1485 */
1486 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1487 union wpa_event_data *data,
1488 int own_request, int update_only)
1489 {
1490 struct wpa_scan_results *scan_res = NULL;
1491 int ret = 0;
1492 int ap = 0;
1493 #ifndef CONFIG_NO_RANDOM_POOL
1494 size_t i, num;
1495 #endif /* CONFIG_NO_RANDOM_POOL */
1496
1497 #ifdef CONFIG_AP
1498 if (wpa_s->ap_iface)
1499 ap = 1;
1500 #endif /* CONFIG_AP */
1501
1502 wpa_supplicant_notify_scanning(wpa_s, 0);
1503
1504 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1505 data ? &data->scan_info :
1506 NULL, 1);
1507 if (scan_res == NULL) {
1508 if (wpa_s->conf->ap_scan == 2 || ap ||
1509 wpa_s->scan_res_handler == scan_only_handler)
1510 return -1;
1511 if (!own_request)
1512 return -1;
1513 if (data && data->scan_info.external_scan)
1514 return -1;
1515 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1516 "scanning again");
1517 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1518 ret = -1;
1519 goto scan_work_done;
1520 }
1521
1522 #ifndef CONFIG_NO_RANDOM_POOL
1523 num = scan_res->num;
1524 if (num > 10)
1525 num = 10;
1526 for (i = 0; i < num; i++) {
1527 u8 buf[5];
1528 struct wpa_scan_res *res = scan_res->res[i];
1529 buf[0] = res->bssid[5];
1530 buf[1] = res->qual & 0xff;
1531 buf[2] = res->noise & 0xff;
1532 buf[3] = res->level & 0xff;
1533 buf[4] = res->tsf & 0xff;
1534 random_add_randomness(buf, sizeof(buf));
1535 }
1536 #endif /* CONFIG_NO_RANDOM_POOL */
1537
1538 if (update_only) {
1539 ret = 1;
1540 goto scan_work_done;
1541 }
1542
1543 if (own_request && wpa_s->scan_res_handler &&
1544 !(data && data->scan_info.external_scan)) {
1545 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1546 struct wpa_scan_results *scan_res);
1547
1548 scan_res_handler = wpa_s->scan_res_handler;
1549 wpa_s->scan_res_handler = NULL;
1550 scan_res_handler(wpa_s, scan_res);
1551 ret = 1;
1552 goto scan_work_done;
1553 }
1554
1555 if (ap) {
1556 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1557 #ifdef CONFIG_AP
1558 if (wpa_s->ap_iface->scan_cb)
1559 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1560 #endif /* CONFIG_AP */
1561 goto scan_work_done;
1562 }
1563
1564 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1565 wpa_s->own_scan_running,
1566 data ? data->scan_info.external_scan : 0);
1567 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1568 wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
1569 own_request && !(data && data->scan_info.external_scan)) {
1570 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1571 wpa_s->manual_scan_id);
1572 wpa_s->manual_scan_use_id = 0;
1573 } else {
1574 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1575 }
1576 wpas_notify_scan_results(wpa_s);
1577
1578 wpas_notify_scan_done(wpa_s, 1);
1579
1580 if (data && data->scan_info.external_scan) {
1581 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1582 wpa_scan_results_free(scan_res);
1583 return 0;
1584 }
1585
1586 if (wnm_scan_process(wpa_s, 1) > 0)
1587 goto scan_work_done;
1588
1589 if (sme_proc_obss_scan(wpa_s) > 0)
1590 goto scan_work_done;
1591
1592 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1593 goto scan_work_done;
1594
1595 if (autoscan_notify_scan(wpa_s, scan_res))
1596 goto scan_work_done;
1597
1598 if (wpa_s->disconnected) {
1599 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1600 goto scan_work_done;
1601 }
1602
1603 if (!wpas_driver_bss_selection(wpa_s) &&
1604 bgscan_notify_scan(wpa_s, scan_res) == 1)
1605 goto scan_work_done;
1606
1607 wpas_wps_update_ap_info(wpa_s, scan_res);
1608
1609 if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
1610 wpa_s->wpa_state < WPA_COMPLETED)
1611 goto scan_work_done;
1612
1613 wpa_scan_results_free(scan_res);
1614
1615 if (own_request && wpa_s->scan_work) {
1616 struct wpa_radio_work *work = wpa_s->scan_work;
1617 wpa_s->scan_work = NULL;
1618 radio_work_done(work);
1619 }
1620
1621 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
1622
1623 scan_work_done:
1624 wpa_scan_results_free(scan_res);
1625 if (own_request && wpa_s->scan_work) {
1626 struct wpa_radio_work *work = wpa_s->scan_work;
1627 wpa_s->scan_work = NULL;
1628 radio_work_done(work);
1629 }
1630 return ret;
1631 }
1632
1633
1634 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
1635 int new_scan, int own_request)
1636 {
1637 struct wpa_bss *selected;
1638 struct wpa_ssid *ssid = NULL;
1639 int time_to_reenable = wpas_reenabled_network_time(wpa_s);
1640
1641 if (time_to_reenable > 0) {
1642 wpa_dbg(wpa_s, MSG_DEBUG,
1643 "Postpone network selection by %d seconds since all networks are disabled",
1644 time_to_reenable);
1645 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
1646 eloop_register_timeout(time_to_reenable, 0,
1647 wpas_network_reenabled, wpa_s, NULL);
1648 return 0;
1649 }
1650
1651 if (wpa_s->p2p_mgmt)
1652 return 0; /* no normal connection on p2p_mgmt interface */
1653
1654 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1655
1656 #ifdef CONFIG_MESH
1657 if (wpa_s->ifmsh) {
1658 wpa_msg(wpa_s, MSG_INFO,
1659 "Avoiding join because we already joined a mesh group");
1660 return 0;
1661 }
1662 #endif /* CONFIG_MESH */
1663
1664 if (selected) {
1665 int skip;
1666 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1667 if (skip) {
1668 if (new_scan)
1669 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1670 return 0;
1671 }
1672
1673 if (ssid != wpa_s->current_ssid &&
1674 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1675 wpa_s->own_disconnect_req = 1;
1676 wpa_supplicant_deauthenticate(
1677 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1678 }
1679
1680 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1681 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1682 return -1;
1683 }
1684 if (new_scan)
1685 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1686 /*
1687 * Do not allow other virtual radios to trigger operations based
1688 * on these scan results since we do not want them to start
1689 * other associations at the same time.
1690 */
1691 return 1;
1692 } else {
1693 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1694 ssid = wpa_supplicant_pick_new_network(wpa_s);
1695 if (ssid) {
1696 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1697 wpa_supplicant_associate(wpa_s, NULL, ssid);
1698 if (new_scan)
1699 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1700 } else if (own_request) {
1701 /*
1702 * No SSID found. If SCAN results are as a result of
1703 * own scan request and not due to a scan request on
1704 * another shared interface, try another scan.
1705 */
1706 int timeout_sec = wpa_s->scan_interval;
1707 int timeout_usec = 0;
1708 #ifdef CONFIG_P2P
1709 int res;
1710
1711 res = wpas_p2p_scan_no_go_seen(wpa_s);
1712 if (res == 2)
1713 return 2;
1714 if (res == 1)
1715 return 0;
1716
1717 if (wpa_s->p2p_in_provisioning ||
1718 wpa_s->show_group_started ||
1719 wpa_s->p2p_in_invitation) {
1720 /*
1721 * Use shorter wait during P2P Provisioning
1722 * state and during P2P join-a-group operation
1723 * to speed up group formation.
1724 */
1725 timeout_sec = 0;
1726 timeout_usec = 250000;
1727 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1728 timeout_usec);
1729 return 0;
1730 }
1731 #endif /* CONFIG_P2P */
1732 #ifdef CONFIG_INTERWORKING
1733 if (wpa_s->conf->auto_interworking &&
1734 wpa_s->conf->interworking &&
1735 wpa_s->conf->cred) {
1736 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1737 "start ANQP fetch since no matching "
1738 "networks found");
1739 wpa_s->network_select = 1;
1740 wpa_s->auto_network_select = 1;
1741 interworking_start_fetch_anqp(wpa_s);
1742 return 1;
1743 }
1744 #endif /* CONFIG_INTERWORKING */
1745 #ifdef CONFIG_WPS
1746 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
1747 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1748 timeout_sec = 0;
1749 timeout_usec = 500000;
1750 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1751 timeout_usec);
1752 return 0;
1753 }
1754 #endif /* CONFIG_WPS */
1755 if (wpa_supplicant_req_sched_scan(wpa_s))
1756 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1757 timeout_usec);
1758
1759 wpa_msg_ctrl(wpa_s, MSG_INFO,
1760 WPA_EVENT_NETWORK_NOT_FOUND);
1761 }
1762 }
1763 return 0;
1764 }
1765
1766
1767 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1768 union wpa_event_data *data)
1769 {
1770 struct wpa_supplicant *ifs;
1771 int res;
1772
1773 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1, 0);
1774 if (res == 2) {
1775 /*
1776 * Interface may have been removed, so must not dereference
1777 * wpa_s after this.
1778 */
1779 return 1;
1780 }
1781
1782 if (res < 0) {
1783 /*
1784 * If no scan results could be fetched, then no need to
1785 * notify those interfaces that did not actually request
1786 * this scan. Similarly, if scan results started a new operation on this
1787 * interface, do not notify other interfaces to avoid concurrent
1788 * operations during a connection attempt.
1789 */
1790 return 0;
1791 }
1792
1793 /*
1794 * Check other interfaces to see if they share the same radio. If
1795 * so, they get updated with this same scan info.
1796 */
1797 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1798 radio_list) {
1799 if (ifs != wpa_s) {
1800 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1801 "sibling", ifs->ifname);
1802 res = _wpa_supplicant_event_scan_results(ifs, data, 0,
1803 res > 0);
1804 if (res < 0)
1805 return 0;
1806 }
1807 }
1808
1809 return 0;
1810 }
1811
1812 #endif /* CONFIG_NO_SCAN_PROCESSING */
1813
1814
1815 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1816 {
1817 #ifdef CONFIG_NO_SCAN_PROCESSING
1818 return -1;
1819 #else /* CONFIG_NO_SCAN_PROCESSING */
1820 struct os_reltime now;
1821
1822 if (wpa_s->last_scan_res_used == 0)
1823 return -1;
1824
1825 os_get_reltime(&now);
1826 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
1827 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1828 return -1;
1829 }
1830
1831 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
1832 #endif /* CONFIG_NO_SCAN_PROCESSING */
1833 }
1834
1835 #ifdef CONFIG_WNM
1836
1837 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1838 {
1839 struct wpa_supplicant *wpa_s = eloop_ctx;
1840
1841 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1842 return;
1843
1844 if (!wpa_s->no_keep_alive) {
1845 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1846 MAC2STR(wpa_s->bssid));
1847 /* TODO: could skip this if normal data traffic has been sent */
1848 /* TODO: Consider using some more appropriate data frame for
1849 * this */
1850 if (wpa_s->l2)
1851 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1852 (u8 *) "", 0);
1853 }
1854
1855 #ifdef CONFIG_SME
1856 if (wpa_s->sme.bss_max_idle_period) {
1857 unsigned int msec;
1858 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1859 if (msec > 100)
1860 msec -= 100;
1861 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1862 wnm_bss_keep_alive, wpa_s, NULL);
1863 }
1864 #endif /* CONFIG_SME */
1865 }
1866
1867
1868 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1869 const u8 *ies, size_t ies_len)
1870 {
1871 struct ieee802_11_elems elems;
1872
1873 if (ies == NULL)
1874 return;
1875
1876 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1877 return;
1878
1879 #ifdef CONFIG_SME
1880 if (elems.bss_max_idle_period) {
1881 unsigned int msec;
1882 wpa_s->sme.bss_max_idle_period =
1883 WPA_GET_LE16(elems.bss_max_idle_period);
1884 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1885 "TU)%s", wpa_s->sme.bss_max_idle_period,
1886 (elems.bss_max_idle_period[2] & 0x01) ?
1887 " (protected keep-live required)" : "");
1888 if (wpa_s->sme.bss_max_idle_period == 0)
1889 wpa_s->sme.bss_max_idle_period = 1;
1890 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1891 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1892 /* msec times 1000 */
1893 msec = wpa_s->sme.bss_max_idle_period * 1024;
1894 if (msec > 100)
1895 msec -= 100;
1896 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1897 wnm_bss_keep_alive, wpa_s,
1898 NULL);
1899 }
1900 }
1901 #endif /* CONFIG_SME */
1902 }
1903
1904 #endif /* CONFIG_WNM */
1905
1906
1907 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1908 {
1909 #ifdef CONFIG_WNM
1910 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1911 #endif /* CONFIG_WNM */
1912 }
1913
1914
1915 #ifdef CONFIG_INTERWORKING
1916
1917 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1918 size_t len)
1919 {
1920 int res;
1921
1922 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1923 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1924 if (res) {
1925 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1926 }
1927
1928 return res;
1929 }
1930
1931
1932 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1933 const u8 *ies, size_t ies_len)
1934 {
1935 struct ieee802_11_elems elems;
1936
1937 if (ies == NULL)
1938 return;
1939
1940 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1941 return;
1942
1943 if (elems.qos_map_set) {
1944 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1945 elems.qos_map_set_len);
1946 }
1947 }
1948
1949 #endif /* CONFIG_INTERWORKING */
1950
1951
1952 #ifdef CONFIG_FST
1953 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
1954 const u8 *ie, size_t ie_len)
1955 {
1956 struct mb_ies_info mb_ies;
1957
1958 if (!ie || !ie_len || !wpa_s->fst)
1959 return -ENOENT;
1960
1961 os_memset(&mb_ies, 0, sizeof(mb_ies));
1962
1963 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
1964 size_t len;
1965
1966 len = 2 + ie[1];
1967 if (len > ie_len) {
1968 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
1969 ie, ie_len);
1970 break;
1971 }
1972
1973 if (ie[0] == WLAN_EID_MULTI_BAND) {
1974 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
1975 (unsigned int) len);
1976 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
1977 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
1978 mb_ies.nof_ies++;
1979 }
1980
1981 ie_len -= len;
1982 ie += len;
1983 }
1984
1985 if (mb_ies.nof_ies > 0) {
1986 wpabuf_free(wpa_s->received_mb_ies);
1987 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
1988 return 0;
1989 }
1990
1991 return -ENOENT;
1992 }
1993 #endif /* CONFIG_FST */
1994
1995
1996 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1997 union wpa_event_data *data)
1998 {
1999 int l, len, found = 0, wpa_found, rsn_found;
2000 const u8 *p;
2001 #ifdef CONFIG_IEEE80211R
2002 u8 bssid[ETH_ALEN];
2003 #endif /* CONFIG_IEEE80211R */
2004
2005 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
2006 if (data->assoc_info.req_ies)
2007 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
2008 data->assoc_info.req_ies_len);
2009 if (data->assoc_info.resp_ies) {
2010 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
2011 data->assoc_info.resp_ies_len);
2012 #ifdef CONFIG_TDLS
2013 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
2014 data->assoc_info.resp_ies_len);
2015 #endif /* CONFIG_TDLS */
2016 #ifdef CONFIG_WNM
2017 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2018 data->assoc_info.resp_ies_len);
2019 #endif /* CONFIG_WNM */
2020 #ifdef CONFIG_INTERWORKING
2021 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
2022 data->assoc_info.resp_ies_len);
2023 #endif /* CONFIG_INTERWORKING */
2024 }
2025 if (data->assoc_info.beacon_ies)
2026 wpa_hexdump(MSG_DEBUG, "beacon_ies",
2027 data->assoc_info.beacon_ies,
2028 data->assoc_info.beacon_ies_len);
2029 if (data->assoc_info.freq)
2030 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
2031 data->assoc_info.freq);
2032
2033 p = data->assoc_info.req_ies;
2034 l = data->assoc_info.req_ies_len;
2035
2036 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
2037 while (p && l >= 2) {
2038 len = p[1] + 2;
2039 if (len > l) {
2040 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2041 p, l);
2042 break;
2043 }
2044 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2045 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
2046 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
2047 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
2048 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
2049 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
2050 break;
2051 found = 1;
2052 wpa_find_assoc_pmkid(wpa_s);
2053 break;
2054 }
2055 l -= len;
2056 p += len;
2057 }
2058 if (!found && data->assoc_info.req_ies)
2059 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2060
2061 #ifdef CONFIG_FILS
2062 #ifdef CONFIG_SME
2063 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS &&
2064 (!data->assoc_info.resp_frame ||
2065 fils_process_assoc_resp(wpa_s->wpa,
2066 data->assoc_info.resp_frame,
2067 data->assoc_info.resp_frame_len) < 0)) {
2068 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED);
2069 return -1;
2070 }
2071 #endif /* CONFIG_SME */
2072 #endif /* CONFIG_FILS */
2073
2074 #ifdef CONFIG_IEEE80211R
2075 #ifdef CONFIG_SME
2076 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
2077 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2078 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2079 data->assoc_info.resp_ies,
2080 data->assoc_info.resp_ies_len,
2081 bssid) < 0) {
2082 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2083 "Reassociation Response failed");
2084 wpa_supplicant_deauthenticate(
2085 wpa_s, WLAN_REASON_INVALID_IE);
2086 return -1;
2087 }
2088 }
2089
2090 p = data->assoc_info.resp_ies;
2091 l = data->assoc_info.resp_ies_len;
2092
2093 #ifdef CONFIG_WPS_STRICT
2094 if (p && wpa_s->current_ssid &&
2095 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
2096 struct wpabuf *wps;
2097 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
2098 if (wps == NULL) {
2099 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
2100 "include WPS IE in (Re)Association Response");
2101 return -1;
2102 }
2103
2104 if (wps_validate_assoc_resp(wps) < 0) {
2105 wpabuf_free(wps);
2106 wpa_supplicant_deauthenticate(
2107 wpa_s, WLAN_REASON_INVALID_IE);
2108 return -1;
2109 }
2110 wpabuf_free(wps);
2111 }
2112 #endif /* CONFIG_WPS_STRICT */
2113
2114 /* Go through the IEs and make a copy of the MDIE, if present. */
2115 while (p && l >= 2) {
2116 len = p[1] + 2;
2117 if (len > l) {
2118 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2119 p, l);
2120 break;
2121 }
2122 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
2123 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
2124 wpa_s->sme.ft_used = 1;
2125 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
2126 MOBILITY_DOMAIN_ID_LEN);
2127 break;
2128 }
2129 l -= len;
2130 p += len;
2131 }
2132 #endif /* CONFIG_SME */
2133
2134 /* Process FT when SME is in the driver */
2135 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
2136 wpa_ft_is_completed(wpa_s->wpa)) {
2137 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2138 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2139 data->assoc_info.resp_ies,
2140 data->assoc_info.resp_ies_len,
2141 bssid) < 0) {
2142 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2143 "Reassociation Response failed");
2144 wpa_supplicant_deauthenticate(
2145 wpa_s, WLAN_REASON_INVALID_IE);
2146 return -1;
2147 }
2148 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
2149 }
2150
2151 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
2152 data->assoc_info.resp_ies_len);
2153 #endif /* CONFIG_IEEE80211R */
2154
2155 /* WPA/RSN IE from Beacon/ProbeResp */
2156 p = data->assoc_info.beacon_ies;
2157 l = data->assoc_info.beacon_ies_len;
2158
2159 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
2160 */
2161 wpa_found = rsn_found = 0;
2162 while (p && l >= 2) {
2163 len = p[1] + 2;
2164 if (len > l) {
2165 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
2166 p, l);
2167 break;
2168 }
2169 if (!wpa_found &&
2170 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2171 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
2172 wpa_found = 1;
2173 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
2174 }
2175
2176 if (!rsn_found &&
2177 p[0] == WLAN_EID_RSN && p[1] >= 2) {
2178 rsn_found = 1;
2179 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
2180 }
2181
2182 l -= len;
2183 p += len;
2184 }
2185
2186 if (!wpa_found && data->assoc_info.beacon_ies)
2187 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
2188 if (!rsn_found && data->assoc_info.beacon_ies)
2189 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
2190 if (wpa_found || rsn_found)
2191 wpa_s->ap_ies_from_associnfo = 1;
2192
2193 if (wpa_s->assoc_freq && data->assoc_info.freq &&
2194 wpa_s->assoc_freq != data->assoc_info.freq) {
2195 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
2196 "%u to %u MHz",
2197 wpa_s->assoc_freq, data->assoc_info.freq);
2198 wpa_supplicant_update_scan_results(wpa_s);
2199 }
2200
2201 wpa_s->assoc_freq = data->assoc_info.freq;
2202
2203 return 0;
2204 }
2205
2206
2207 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
2208 {
2209 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
2210
2211 if (!wpa_s->current_bss || !wpa_s->current_ssid)
2212 return -1;
2213
2214 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
2215 return 0;
2216
2217 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
2218 WPA_IE_VENDOR_TYPE);
2219 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
2220
2221 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
2222 bss_wpa ? 2 + bss_wpa[1] : 0) ||
2223 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
2224 bss_rsn ? 2 + bss_rsn[1] : 0))
2225 return -1;
2226
2227 return 0;
2228 }
2229
2230
2231 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
2232 union wpa_event_data *data)
2233 {
2234 #ifdef CONFIG_FST
2235 struct assoc_info *ai = data ? &data->assoc_info : NULL;
2236 struct wpa_bss *bss = wpa_s->current_bss;
2237 const u8 *ieprb, *iebcn;
2238
2239 wpabuf_free(wpa_s->received_mb_ies);
2240 wpa_s->received_mb_ies = NULL;
2241
2242 if (ai &&
2243 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
2244 wpa_printf(MSG_DEBUG,
2245 "FST: MB IEs updated from Association Response frame");
2246 return;
2247 }
2248
2249 if (ai &&
2250 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
2251 wpa_printf(MSG_DEBUG,
2252 "FST: MB IEs updated from association event Beacon IEs");
2253 return;
2254 }
2255
2256 if (!bss)
2257 return;
2258
2259 ieprb = (const u8 *) (bss + 1);
2260 iebcn = ieprb + bss->ie_len;
2261
2262 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
2263 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
2264 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
2265 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
2266 #endif /* CONFIG_FST */
2267 }
2268
2269
2270 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
2271 union wpa_event_data *data)
2272 {
2273 u8 bssid[ETH_ALEN];
2274 int ft_completed, already_authorized;
2275 int new_bss = 0;
2276
2277 #ifdef CONFIG_AP
2278 if (wpa_s->ap_iface) {
2279 if (!data)
2280 return;
2281 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
2282 data->assoc_info.addr,
2283 data->assoc_info.req_ies,
2284 data->assoc_info.req_ies_len,
2285 data->assoc_info.reassoc);
2286 return;
2287 }
2288 #endif /* CONFIG_AP */
2289
2290 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2291
2292 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
2293 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
2294 return;
2295 /*
2296 * FILS authentication can share the same mechanism to mark the
2297 * connection fully authenticated, so set ft_completed also based on
2298 * FILS result.
2299 */
2300 if (!ft_completed)
2301 ft_completed = wpa_fils_is_completed(wpa_s->wpa);
2302
2303 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
2304 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
2305 wpa_supplicant_deauthenticate(
2306 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2307 return;
2308 }
2309
2310 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
2311 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
2312 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
2313 MACSTR, MAC2STR(bssid));
2314 new_bss = 1;
2315 random_add_randomness(bssid, ETH_ALEN);
2316 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
2317 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2318 wpas_notify_bssid_changed(wpa_s);
2319
2320 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
2321 wpa_clear_keys(wpa_s, bssid);
2322 }
2323 if (wpa_supplicant_select_config(wpa_s) < 0) {
2324 wpa_supplicant_deauthenticate(
2325 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2326 return;
2327 }
2328 }
2329
2330 if (wpa_s->conf->ap_scan == 1 &&
2331 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
2332 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
2333 wpa_msg(wpa_s, MSG_WARNING,
2334 "WPA/RSN IEs not updated");
2335 }
2336
2337 wpas_fst_update_mb_assoc(wpa_s, data);
2338
2339 #ifdef CONFIG_SME
2340 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
2341 wpa_s->sme.prev_bssid_set = 1;
2342 wpa_s->sme.last_unprot_disconnect.sec = 0;
2343 #endif /* CONFIG_SME */
2344
2345 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
2346 if (wpa_s->current_ssid) {
2347 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
2348 * initialized before association, but for other modes,
2349 * initialize PC/SC here, if the current configuration needs
2350 * smartcard or SIM/USIM. */
2351 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
2352 }
2353 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
2354 if (wpa_s->l2)
2355 l2_packet_notify_auth_start(wpa_s->l2);
2356
2357 already_authorized = data && data->assoc_info.authorized;
2358
2359 /*
2360 * Set portEnabled first to FALSE in order to get EAP state machine out
2361 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
2362 * state machine may transit to AUTHENTICATING state based on obsolete
2363 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
2364 * AUTHENTICATED without ever giving chance to EAP state machine to
2365 * reset the state.
2366 */
2367 if (!ft_completed && !already_authorized) {
2368 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
2369 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
2370 }
2371 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed ||
2372 already_authorized)
2373 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
2374 /* 802.1X::portControl = Auto */
2375 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
2376 wpa_s->eapol_received = 0;
2377 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2378 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
2379 (wpa_s->current_ssid &&
2380 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
2381 if (wpa_s->current_ssid &&
2382 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
2383 (wpa_s->drv_flags &
2384 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2385 /*
2386 * Set the key after having received joined-IBSS event
2387 * from the driver.
2388 */
2389 wpa_supplicant_set_wpa_none_key(wpa_s,
2390 wpa_s->current_ssid);
2391 }
2392 wpa_supplicant_cancel_auth_timeout(wpa_s);
2393 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2394 } else if (!ft_completed) {
2395 /* Timeout for receiving the first EAPOL packet */
2396 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
2397 }
2398 wpa_supplicant_cancel_scan(wpa_s);
2399
2400 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2401 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
2402 /*
2403 * We are done; the driver will take care of RSN 4-way
2404 * handshake.
2405 */
2406 wpa_supplicant_cancel_auth_timeout(wpa_s);
2407 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2408 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2409 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2410 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2411 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
2412 /*
2413 * The driver will take care of RSN 4-way handshake, so we need
2414 * to allow EAPOL supplicant to complete its work without
2415 * waiting for WPA supplicant.
2416 */
2417 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2418 } else if (ft_completed) {
2419 /*
2420 * FT protocol completed - make sure EAPOL state machine ends
2421 * up in authenticated.
2422 */
2423 wpa_supplicant_cancel_auth_timeout(wpa_s);
2424 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2425 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2426 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2427 }
2428
2429 wpa_s->last_eapol_matches_bssid = 0;
2430
2431 if (wpa_s->pending_eapol_rx) {
2432 struct os_reltime now, age;
2433 os_get_reltime(&now);
2434 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
2435 if (age.sec == 0 && age.usec < 100000 &&
2436 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2437 0) {
2438 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2439 "frame that was received just before "
2440 "association notification");
2441 wpa_supplicant_rx_eapol(
2442 wpa_s, wpa_s->pending_eapol_rx_src,
2443 wpabuf_head(wpa_s->pending_eapol_rx),
2444 wpabuf_len(wpa_s->pending_eapol_rx));
2445 }
2446 wpabuf_free(wpa_s->pending_eapol_rx);
2447 wpa_s->pending_eapol_rx = NULL;
2448 }
2449
2450 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2451 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
2452 wpa_s->current_ssid &&
2453 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2454 /* Set static WEP keys again */
2455 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2456 }
2457
2458 #ifdef CONFIG_IBSS_RSN
2459 if (wpa_s->current_ssid &&
2460 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2461 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2462 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2463 wpa_s->ibss_rsn == NULL) {
2464 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s, wpa_s->current_ssid);
2465 if (!wpa_s->ibss_rsn) {
2466 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2467 wpa_supplicant_deauthenticate(
2468 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2469 return;
2470 }
2471
2472 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2473 }
2474 #endif /* CONFIG_IBSS_RSN */
2475
2476 wpas_wps_notify_assoc(wpa_s, bssid);
2477
2478 if (data) {
2479 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2480 data->assoc_info.resp_ies_len,
2481 &data->assoc_info.wmm_params);
2482
2483 if (wpa_s->reassoc_same_bss)
2484 wmm_ac_restore_tspecs(wpa_s);
2485 }
2486 }
2487
2488
2489 static int disconnect_reason_recoverable(u16 reason_code)
2490 {
2491 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2492 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2493 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2494 }
2495
2496
2497 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
2498 u16 reason_code,
2499 int locally_generated)
2500 {
2501 const u8 *bssid;
2502
2503 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2504 /*
2505 * At least Host AP driver and a Prism3 card seemed to be
2506 * generating streams of disconnected events when configuring
2507 * IBSS for WPA-None. Ignore them for now.
2508 */
2509 return;
2510 }
2511
2512 bssid = wpa_s->bssid;
2513 if (is_zero_ether_addr(bssid))
2514 bssid = wpa_s->pending_bssid;
2515
2516 if (!is_zero_ether_addr(bssid) ||
2517 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2518 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2519 " reason=%d%s",
2520 MAC2STR(bssid), reason_code,
2521 locally_generated ? " locally_generated=1" : "");
2522 }
2523 }
2524
2525
2526 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2527 int locally_generated)
2528 {
2529 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2530 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2531 return 0; /* Not in 4-way handshake with PSK */
2532
2533 /*
2534 * It looks like connection was lost while trying to go through PSK
2535 * 4-way handshake. Filter out known disconnection cases that are caused
2536 * by something else than PSK mismatch to avoid confusing reports.
2537 */
2538
2539 if (locally_generated) {
2540 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2541 return 0;
2542 }
2543
2544 return 1;
2545 }
2546
2547
2548 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2549 u16 reason_code,
2550 int locally_generated)
2551 {
2552 const u8 *bssid;
2553 int authenticating;
2554 u8 prev_pending_bssid[ETH_ALEN];
2555 struct wpa_bss *fast_reconnect = NULL;
2556 struct wpa_ssid *fast_reconnect_ssid = NULL;
2557 struct wpa_ssid *last_ssid;
2558 struct wpa_bss *curr = NULL;
2559
2560 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2561 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
2562
2563 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2564 /*
2565 * At least Host AP driver and a Prism3 card seemed to be
2566 * generating streams of disconnected events when configuring
2567 * IBSS for WPA-None. Ignore them for now.
2568 */
2569 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2570 "IBSS/WPA-None mode");
2571 return;
2572 }
2573
2574 if (!wpa_s->disconnected && wpa_s->wpa_state >= WPA_AUTHENTICATING &&
2575 reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY &&
2576 locally_generated)
2577 /*
2578 * Remove the inactive AP (which is probably out of range) from
2579 * the BSS list after marking disassociation. In particular
2580 * mac80211-based drivers use the
2581 * WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in
2582 * locally generated disconnection events for cases where the
2583 * AP does not reply anymore.
2584 */
2585 curr = wpa_s->current_bss;
2586
2587 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
2588 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2589 "pre-shared key may be incorrect");
2590 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2591 return; /* P2P group removed */
2592 wpas_auth_failed(wpa_s, "WRONG_KEY");
2593 }
2594 if (!wpa_s->disconnected &&
2595 (!wpa_s->auto_reconnect_disabled ||
2596 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
2597 wpas_wps_searching(wpa_s) ||
2598 wpas_wps_reenable_networks_pending(wpa_s))) {
2599 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
2600 "reconnect (wps=%d/%d wpa_state=%d)",
2601 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2602 wpas_wps_searching(wpa_s),
2603 wpa_s->wpa_state);
2604 if (wpa_s->wpa_state == WPA_COMPLETED &&
2605 wpa_s->current_ssid &&
2606 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
2607 !locally_generated &&
2608 disconnect_reason_recoverable(reason_code)) {
2609 /*
2610 * It looks like the AP has dropped association with
2611 * us, but could allow us to get back in. Try to
2612 * reconnect to the same BSS without full scan to save
2613 * time for some common cases.
2614 */
2615 fast_reconnect = wpa_s->current_bss;
2616 fast_reconnect_ssid = wpa_s->current_ssid;
2617 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
2618 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2619 else
2620 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2621 "immediate scan");
2622 } else {
2623 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
2624 "try to re-connect");
2625 wpa_s->reassociate = 0;
2626 wpa_s->disconnected = 1;
2627 if (!wpa_s->pno)
2628 wpa_supplicant_cancel_sched_scan(wpa_s);
2629 }
2630 bssid = wpa_s->bssid;
2631 if (is_zero_ether_addr(bssid))
2632 bssid = wpa_s->pending_bssid;
2633 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2634 wpas_connection_failed(wpa_s, bssid);
2635 wpa_sm_notify_disassoc(wpa_s->wpa);
2636 if (locally_generated)
2637 wpa_s->disconnect_reason = -reason_code;
2638 else
2639 wpa_s->disconnect_reason = reason_code;
2640 wpas_notify_disconnect_reason(wpa_s);
2641 if (wpa_supplicant_dynamic_keys(wpa_s)) {
2642 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
2643 wpa_clear_keys(wpa_s, wpa_s->bssid);
2644 }
2645 last_ssid = wpa_s->current_ssid;
2646 wpa_supplicant_mark_disassoc(wpa_s);
2647
2648 if (curr)
2649 wpa_bss_remove(wpa_s, curr, "Connection to AP lost");
2650
2651 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2652 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2653 wpa_s->current_ssid = last_ssid;
2654 }
2655
2656 if (fast_reconnect &&
2657 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2658 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2659 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2660 fast_reconnect->ssid_len) &&
2661 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
2662 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) {
2663 #ifndef CONFIG_NO_SCAN_PROCESSING
2664 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2665 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2666 fast_reconnect_ssid) < 0) {
2667 /* Recover through full scan */
2668 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2669 }
2670 #endif /* CONFIG_NO_SCAN_PROCESSING */
2671 } else if (fast_reconnect) {
2672 /*
2673 * Could not reconnect to the same BSS due to network being
2674 * disabled. Use a new scan to match the alternative behavior
2675 * above, i.e., to continue automatic reconnection attempt in a
2676 * way that enforces disabled network rules.
2677 */
2678 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2679 }
2680 }
2681
2682
2683 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2684 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
2685 {
2686 struct wpa_supplicant *wpa_s = eloop_ctx;
2687
2688 if (!wpa_s->pending_mic_error_report)
2689 return;
2690
2691 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2692 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2693 wpa_s->pending_mic_error_report = 0;
2694 }
2695 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2696
2697
2698 static void
2699 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2700 union wpa_event_data *data)
2701 {
2702 int pairwise;
2703 struct os_reltime t;
2704
2705 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2706 pairwise = (data && data->michael_mic_failure.unicast);
2707 os_get_reltime(&t);
2708 if ((wpa_s->last_michael_mic_error.sec &&
2709 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
2710 wpa_s->pending_mic_error_report) {
2711 if (wpa_s->pending_mic_error_report) {
2712 /*
2713 * Send the pending MIC error report immediately since
2714 * we are going to start countermeasures and AP better
2715 * do the same.
2716 */
2717 wpa_sm_key_request(wpa_s->wpa, 1,
2718 wpa_s->pending_mic_error_pairwise);
2719 }
2720
2721 /* Send the new MIC error report immediately since we are going
2722 * to start countermeasures and AP better do the same.
2723 */
2724 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2725
2726 /* initialize countermeasures */
2727 wpa_s->countermeasures = 1;
2728
2729 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2730
2731 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2732
2733 /*
2734 * Need to wait for completion of request frame. We do not get
2735 * any callback for the message completion, so just wait a
2736 * short while and hope for the best. */
2737 os_sleep(0, 10000);
2738
2739 wpa_drv_set_countermeasures(wpa_s, 1);
2740 wpa_supplicant_deauthenticate(wpa_s,
2741 WLAN_REASON_MICHAEL_MIC_FAILURE);
2742 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2743 wpa_s, NULL);
2744 eloop_register_timeout(60, 0,
2745 wpa_supplicant_stop_countermeasures,
2746 wpa_s, NULL);
2747 /* TODO: mark the AP rejected for 60 second. STA is
2748 * allowed to associate with another AP.. */
2749 } else {
2750 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2751 if (wpa_s->mic_errors_seen) {
2752 /*
2753 * Reduce the effectiveness of Michael MIC error
2754 * reports as a means for attacking against TKIP if
2755 * more than one MIC failure is noticed with the same
2756 * PTK. We delay the transmission of the reports by a
2757 * random time between 0 and 60 seconds in order to
2758 * force the attacker wait 60 seconds before getting
2759 * the information on whether a frame resulted in a MIC
2760 * failure.
2761 */
2762 u8 rval[4];
2763 int sec;
2764
2765 if (os_get_random(rval, sizeof(rval)) < 0)
2766 sec = os_random() % 60;
2767 else
2768 sec = WPA_GET_BE32(rval) % 60;
2769 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2770 "report %d seconds", sec);
2771 wpa_s->pending_mic_error_report = 1;
2772 wpa_s->pending_mic_error_pairwise = pairwise;
2773 eloop_cancel_timeout(
2774 wpa_supplicant_delayed_mic_error_report,
2775 wpa_s, NULL);
2776 eloop_register_timeout(
2777 sec, os_random() % 1000000,
2778 wpa_supplicant_delayed_mic_error_report,
2779 wpa_s, NULL);
2780 } else {
2781 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2782 }
2783 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2784 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2785 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2786 }
2787 wpa_s->last_michael_mic_error = t;
2788 wpa_s->mic_errors_seen++;
2789 }
2790
2791
2792 #ifdef CONFIG_TERMINATE_ONLASTIF
2793 static int any_interfaces(struct wpa_supplicant *head)
2794 {
2795 struct wpa_supplicant *wpa_s;
2796
2797 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2798 if (!wpa_s->interface_removed)
2799 return 1;
2800 return 0;
2801 }
2802 #endif /* CONFIG_TERMINATE_ONLASTIF */
2803
2804
2805 static void
2806 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2807 union wpa_event_data *data)
2808 {
2809 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2810 return;
2811
2812 switch (data->interface_status.ievent) {
2813 case EVENT_INTERFACE_ADDED:
2814 if (!wpa_s->interface_removed)
2815 break;
2816 wpa_s->interface_removed = 0;
2817 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2818 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2819 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2820 "driver after interface was added");
2821 }
2822
2823 #ifdef CONFIG_P2P
2824 if (!wpa_s->global->p2p &&
2825 !wpa_s->global->p2p_disabled &&
2826 !wpa_s->conf->p2p_disabled &&
2827 (wpa_s->drv_flags &
2828 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
2829 wpas_p2p_add_p2pdev_interface(
2830 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
2831 wpa_printf(MSG_INFO,
2832 "P2P: Failed to enable P2P Device interface");
2833 /* Try to continue without. P2P will be disabled. */
2834 }
2835 #endif /* CONFIG_P2P */
2836
2837 break;
2838 case EVENT_INTERFACE_REMOVED:
2839 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2840 wpa_s->interface_removed = 1;
2841 wpa_supplicant_mark_disassoc(wpa_s);
2842 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2843 l2_packet_deinit(wpa_s->l2);
2844 wpa_s->l2 = NULL;
2845
2846 #ifdef CONFIG_P2P
2847 if (wpa_s->global->p2p &&
2848 wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
2849 (wpa_s->drv_flags &
2850 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
2851 wpa_dbg(wpa_s, MSG_DEBUG,
2852 "Removing P2P Device interface");
2853 wpa_supplicant_remove_iface(
2854 wpa_s->global, wpa_s->global->p2p_init_wpa_s,
2855 0);
2856 wpa_s->global->p2p_init_wpa_s = NULL;
2857 }
2858 #endif /* CONFIG_P2P */
2859
2860 #ifdef CONFIG_MATCH_IFACE
2861 if (wpa_s->matched) {
2862 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
2863 break;
2864 }
2865 #endif /* CONFIG_MATCH_IFACE */
2866
2867 #ifdef CONFIG_TERMINATE_ONLASTIF
2868 /* check if last interface */
2869 if (!any_interfaces(wpa_s->global->ifaces))
2870 eloop_terminate();
2871 #endif /* CONFIG_TERMINATE_ONLASTIF */
2872 break;
2873 }
2874 }
2875
2876
2877 #ifdef CONFIG_PEERKEY
2878 static void
2879 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2880 union wpa_event_data *data)
2881 {
2882 if (data == NULL)
2883 return;
2884 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2885 }
2886 #endif /* CONFIG_PEERKEY */
2887
2888
2889 #ifdef CONFIG_TDLS
2890 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2891 union wpa_event_data *data)
2892 {
2893 if (data == NULL)
2894 return;
2895 switch (data->tdls.oper) {
2896 case TDLS_REQUEST_SETUP:
2897 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2898 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2899 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2900 else
2901 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2902 break;
2903 case TDLS_REQUEST_TEARDOWN:
2904 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2905 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2906 data->tdls.reason_code);
2907 else
2908 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2909 data->tdls.peer);
2910 break;
2911 case TDLS_REQUEST_DISCOVER:
2912 wpa_tdls_send_discovery_request(wpa_s->wpa,
2913 data->tdls.peer);
2914 break;
2915 }
2916 }
2917 #endif /* CONFIG_TDLS */
2918
2919
2920 #ifdef CONFIG_WNM
2921 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2922 union wpa_event_data *data)
2923 {
2924 if (data == NULL)
2925 return;
2926 switch (data->wnm.oper) {
2927 case WNM_OPER_SLEEP:
2928 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2929 "(action=%d, intval=%d)",
2930 data->wnm.sleep_action, data->wnm.sleep_intval);
2931 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2932 data->wnm.sleep_intval, NULL);
2933 break;
2934 }
2935 }
2936 #endif /* CONFIG_WNM */
2937
2938
2939 #ifdef CONFIG_IEEE80211R
2940 static void
2941 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2942 union wpa_event_data *data)
2943 {
2944 if (data == NULL)
2945 return;
2946
2947 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2948 data->ft_ies.ies_len,
2949 data->ft_ies.ft_action,
2950 data->ft_ies.target_ap,
2951 data->ft_ies.ric_ies,
2952 data->ft_ies.ric_ies_len) < 0) {
2953 /* TODO: prevent MLME/driver from trying to associate? */
2954 }
2955 }
2956 #endif /* CONFIG_IEEE80211R */
2957
2958
2959 #ifdef CONFIG_IBSS_RSN
2960 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2961 union wpa_event_data *data)
2962 {
2963 struct wpa_ssid *ssid;
2964 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2965 return;
2966 if (data == NULL)
2967 return;
2968 ssid = wpa_s->current_ssid;
2969 if (ssid == NULL)
2970 return;
2971 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2972 return;
2973
2974 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2975 }
2976
2977
2978 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2979 union wpa_event_data *data)
2980 {
2981 struct wpa_ssid *ssid = wpa_s->current_ssid;
2982
2983 if (ssid == NULL)
2984 return;
2985
2986 /* check if the ssid is correctly configured as IBSS/RSN */
2987 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2988 return;
2989
2990 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2991 data->rx_mgmt.frame_len);
2992 }
2993 #endif /* CONFIG_IBSS_RSN */
2994
2995
2996 #ifdef CONFIG_IEEE80211R
2997 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2998 size_t len)
2999 {
3000 const u8 *sta_addr, *target_ap_addr;
3001 u16 status;
3002
3003 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
3004 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
3005 return; /* only SME case supported for now */
3006 if (len < 1 + 2 * ETH_ALEN + 2)
3007 return;
3008 if (data[0] != 2)
3009 return; /* Only FT Action Response is supported for now */
3010 sta_addr = data + 1;
3011 target_ap_addr = data + 1 + ETH_ALEN;
3012 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
3013 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
3014 MACSTR " TargetAP " MACSTR " status %u",
3015 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
3016
3017 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
3018 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
3019 " in FT Action Response", MAC2STR(sta_addr));
3020 return;
3021 }
3022
3023 if (status) {
3024 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
3025 "failure (status code %d)", status);
3026 /* TODO: report error to FT code(?) */
3027 return;
3028 }
3029
3030 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
3031 len - (1 + 2 * ETH_ALEN + 2), 1,
3032 target_ap_addr, NULL, 0) < 0)
3033 return;
3034
3035 #ifdef CONFIG_SME
3036 {
3037 struct wpa_bss *bss;
3038 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
3039 if (bss)
3040 wpa_s->sme.freq = bss->freq;
3041 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
3042 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
3043 WLAN_AUTH_FT);
3044 }
3045 #endif /* CONFIG_SME */
3046 }
3047 #endif /* CONFIG_IEEE80211R */
3048
3049
3050 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
3051 struct unprot_deauth *e)
3052 {
3053 #ifdef CONFIG_IEEE80211W
3054 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
3055 "dropped: " MACSTR " -> " MACSTR
3056 " (reason code %u)",
3057 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
3058 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
3059 #endif /* CONFIG_IEEE80211W */
3060 }
3061
3062
3063 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
3064 struct unprot_disassoc *e)
3065 {
3066 #ifdef CONFIG_IEEE80211W
3067 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
3068 "dropped: " MACSTR " -> " MACSTR
3069 " (reason code %u)",
3070 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
3071 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
3072 #endif /* CONFIG_IEEE80211W */
3073 }
3074
3075
3076 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
3077 u16 reason_code, int locally_generated,
3078 const u8 *ie, size_t ie_len, int deauth)
3079 {
3080 #ifdef CONFIG_AP
3081 if (wpa_s->ap_iface && addr) {
3082 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
3083 return;
3084 }
3085
3086 if (wpa_s->ap_iface) {
3087 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
3088 return;
3089 }
3090 #endif /* CONFIG_AP */
3091
3092 if (!locally_generated)
3093 wpa_s->own_disconnect_req = 0;
3094
3095 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
3096
3097 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
3098 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3099 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
3100 eapol_sm_failed(wpa_s->eapol))) &&
3101 !wpa_s->eap_expected_failure))
3102 wpas_auth_failed(wpa_s, "AUTH_FAILED");
3103
3104 #ifdef CONFIG_P2P
3105 if (deauth && reason_code > 0) {
3106 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
3107 locally_generated) > 0) {
3108 /*
3109 * The interface was removed, so cannot continue
3110 * processing any additional operations after this.
3111 */
3112 return;
3113 }
3114 }
3115 #endif /* CONFIG_P2P */
3116
3117 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
3118 locally_generated);
3119 }
3120
3121
3122 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
3123 struct disassoc_info *info)
3124 {
3125 u16 reason_code = 0;
3126 int locally_generated = 0;
3127 const u8 *addr = NULL;
3128 const u8 *ie = NULL;
3129 size_t ie_len = 0;
3130
3131 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
3132
3133 if (info) {
3134 addr = info->addr;
3135 ie = info->ie;
3136 ie_len = info->ie_len;
3137 reason_code = info->reason_code;
3138 locally_generated = info->locally_generated;
3139 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
3140 locally_generated ? " (locally generated)" : "");
3141 if (addr)
3142 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3143 MAC2STR(addr));
3144 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
3145 ie, ie_len);
3146 }
3147
3148 #ifdef CONFIG_AP
3149 if (wpa_s->ap_iface && info && info->addr) {
3150 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
3151 return;
3152 }
3153
3154 if (wpa_s->ap_iface) {
3155 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
3156 return;
3157 }
3158 #endif /* CONFIG_AP */
3159
3160 #ifdef CONFIG_P2P
3161 if (info) {
3162 wpas_p2p_disassoc_notif(
3163 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
3164 locally_generated);
3165 }
3166 #endif /* CONFIG_P2P */
3167
3168 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3169 sme_event_disassoc(wpa_s, info);
3170
3171 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
3172 ie, ie_len, 0);
3173 }
3174
3175
3176 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
3177 struct deauth_info *info)
3178 {
3179 u16 reason_code = 0;
3180 int locally_generated = 0;
3181 const u8 *addr = NULL;
3182 const u8 *ie = NULL;
3183 size_t ie_len = 0;
3184
3185 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
3186
3187 if (info) {
3188 addr = info->addr;
3189 ie = info->ie;
3190 ie_len = info->ie_len;
3191 reason_code = info->reason_code;
3192 locally_generated = info->locally_generated;
3193 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
3194 reason_code,
3195 locally_generated ? " (locally generated)" : "");
3196 if (addr) {
3197 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3198 MAC2STR(addr));
3199 }
3200 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
3201 ie, ie_len);
3202 }
3203
3204 wpa_reset_ft_completed(wpa_s->wpa);
3205
3206 wpas_event_disconnect(wpa_s, addr, reason_code,
3207 locally_generated, ie, ie_len, 1);
3208 }
3209
3210
3211 static const char * reg_init_str(enum reg_change_initiator init)
3212 {
3213 switch (init) {
3214 case REGDOM_SET_BY_CORE:
3215 return "CORE";
3216 case REGDOM_SET_BY_USER:
3217 return "USER";
3218 case REGDOM_SET_BY_DRIVER:
3219 return "DRIVER";
3220 case REGDOM_SET_BY_COUNTRY_IE:
3221 return "COUNTRY_IE";
3222 case REGDOM_BEACON_HINT:
3223 return "BEACON_HINT";
3224 }
3225 return "?";
3226 }
3227
3228
3229 static const char * reg_type_str(enum reg_type type)
3230 {
3231 switch (type) {
3232 case REGDOM_TYPE_UNKNOWN:
3233 return "UNKNOWN";
3234 case REGDOM_TYPE_COUNTRY:
3235 return "COUNTRY";
3236 case REGDOM_TYPE_WORLD:
3237 return "WORLD";
3238 case REGDOM_TYPE_CUSTOM_WORLD:
3239 return "CUSTOM_WORLD";
3240 case REGDOM_TYPE_INTERSECTION:
3241 return "INTERSECTION";
3242 }
3243 return "?";
3244 }
3245
3246
3247 static void wpa_supplicant_update_channel_list(
3248 struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
3249 {
3250 struct wpa_supplicant *ifs;
3251
3252 /*
3253 * To allow backwards compatibility with higher level layers that
3254 * assumed the REGDOM_CHANGE event is sent over the initially added
3255 * interface. Find the highest parent of this interface and use it to
3256 * send the event.
3257 */
3258 for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent)
3259 ;
3260
3261 wpa_msg(ifs, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
3262 reg_init_str(info->initiator), reg_type_str(info->type),
3263 info->alpha2[0] ? " alpha2=" : "",
3264 info->alpha2[0] ? info->alpha2 : "");
3265
3266 if (wpa_s->drv_priv == NULL)
3267 return; /* Ignore event during drv initialization */
3268
3269 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
3270 radio_list) {
3271 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
3272 ifs->ifname);
3273 free_hw_features(ifs);
3274 ifs->hw.modes = wpa_drv_get_hw_feature_data(
3275 ifs, &ifs->hw.num_modes, &ifs->hw.flags);
3276
3277 /* Restart PNO/sched_scan with updated channel list */
3278 if (ifs->pno) {
3279 wpas_stop_pno(ifs);
3280 wpas_start_pno(ifs);
3281 } else if (ifs->sched_scanning && !ifs->pno_sched_pending) {
3282 wpa_dbg(ifs, MSG_DEBUG,
3283 "Channel list changed - restart sched_scan");
3284 wpas_scan_restart_sched_scan(ifs);
3285 }
3286 }
3287
3288 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
3289 }
3290
3291
3292 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
3293 const u8 *frame, size_t len, int freq,
3294 int rssi)
3295 {
3296 const struct ieee80211_mgmt *mgmt;
3297 const u8 *payload;
3298 size_t plen;
3299 u8 category;
3300
3301 if (len < IEEE80211_HDRLEN + 2)
3302 return;
3303
3304 mgmt = (const struct ieee80211_mgmt *) frame;
3305 payload = frame + IEEE80211_HDRLEN;
3306 category = *payload++;
3307 plen = len - IEEE80211_HDRLEN - 1;
3308
3309 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
3310 " Category=%u DataLen=%d freq=%d MHz",
3311 MAC2STR(mgmt->sa), category, (int) plen, freq);
3312
3313 if (category == WLAN_ACTION_WMM) {
3314 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
3315 return;
3316 }
3317
3318 #ifdef CONFIG_IEEE80211R
3319 if (category == WLAN_ACTION_FT) {
3320 ft_rx_action(wpa_s, payload, plen);
3321 return;
3322 }
3323 #endif /* CONFIG_IEEE80211R */
3324
3325 #ifdef CONFIG_IEEE80211W
3326 #ifdef CONFIG_SME
3327 if (category == WLAN_ACTION_SA_QUERY) {
3328 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
3329 return;
3330 }
3331 #endif /* CONFIG_SME */
3332 #endif /* CONFIG_IEEE80211W */
3333
3334 #ifdef CONFIG_WNM
3335 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
3336 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
3337 return;
3338 }
3339 #endif /* CONFIG_WNM */
3340
3341 #ifdef CONFIG_GAS
3342 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
3343 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
3344 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
3345 mgmt->u.action.category,
3346 payload, plen, freq) == 0)
3347 return;
3348 #endif /* CONFIG_GAS */
3349
3350 #ifdef CONFIG_TDLS
3351 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
3352 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
3353 wpa_dbg(wpa_s, MSG_DEBUG,
3354 "TDLS: Received Discovery Response from " MACSTR,
3355 MAC2STR(mgmt->sa));
3356 return;
3357 }
3358 #endif /* CONFIG_TDLS */
3359
3360 #ifdef CONFIG_INTERWORKING
3361 if (category == WLAN_ACTION_QOS && plen >= 1 &&
3362 payload[0] == QOS_QOS_MAP_CONFIG) {
3363 const u8 *pos = payload + 1;
3364 size_t qlen = plen - 1;
3365 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
3366 MACSTR, MAC2STR(mgmt->sa));
3367 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
3368 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
3369 pos[1] <= qlen - 2 && pos[1] >= 16)
3370 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
3371 return;
3372 }
3373 #endif /* CONFIG_INTERWORKING */
3374
3375 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3376 payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) {
3377 wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa,
3378 payload + 1,
3379 plen - 1);
3380 return;
3381 }
3382
3383 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3384 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
3385 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
3386 return;
3387 }
3388
3389 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3390 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
3391 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
3392 payload + 1, plen - 1,
3393 rssi);
3394 return;
3395 }
3396
3397 #ifdef CONFIG_FST
3398 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
3399 fst_rx_action(wpa_s->fst, mgmt, len);
3400 return;
3401 }
3402 #endif /* CONFIG_FST */
3403
3404 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
3405 category, payload, plen, freq);
3406 if (wpa_s->ifmsh)
3407 mesh_mpm_action_rx(wpa_s, mgmt, len);
3408 }
3409
3410
3411 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
3412 union wpa_event_data *event)
3413 {
3414 struct wpa_freq_range_list *list;
3415 char *str = NULL;
3416
3417 list = &event->freq_range;
3418
3419 if (list->num)
3420 str = freq_range_list_str(list);
3421 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
3422 str ? str : "");
3423
3424 #ifdef CONFIG_P2P
3425 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
3426 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
3427 __func__);
3428 } else {
3429 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
3430
3431 /*
3432 * The update channel flow will also take care of moving a GO
3433 * from the unsafe frequency if needed.
3434 */
3435 wpas_p2p_update_channel_list(wpa_s,
3436 WPAS_P2P_CHANNEL_UPDATE_AVOID);
3437 }
3438 #endif /* CONFIG_P2P */
3439
3440 os_free(str);
3441 }
3442
3443
3444 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
3445 union wpa_event_data *data)
3446 {
3447 wpa_dbg(wpa_s, MSG_DEBUG,
3448 "Connection authorized by device, previous state %d",
3449 wpa_s->wpa_state);
3450 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
3451 wpa_supplicant_cancel_auth_timeout(wpa_s);
3452 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3453 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3454 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
3455 }
3456 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
3457 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
3458 data->assoc_info.ptk_kck_len,
3459 data->assoc_info.ptk_kek,
3460 data->assoc_info.ptk_kek_len);
3461 }
3462
3463
3464 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
3465 union wpa_event_data *data)
3466 {
3467 struct wpa_supplicant *wpa_s = ctx;
3468 int resched;
3469
3470 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
3471 event != EVENT_INTERFACE_ENABLED &&
3472 event != EVENT_INTERFACE_STATUS &&
3473 event != EVENT_SCAN_RESULTS &&
3474 event != EVENT_SCHED_SCAN_STOPPED) {
3475 wpa_dbg(wpa_s, MSG_DEBUG,
3476 "Ignore event %s (%d) while interface is disabled",
3477 event_to_string(event), event);
3478 return;
3479 }
3480
3481 #ifndef CONFIG_NO_STDOUT_DEBUG
3482 {
3483 int level = MSG_DEBUG;
3484
3485 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
3486 const struct ieee80211_hdr *hdr;
3487 u16 fc;
3488 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
3489 fc = le_to_host16(hdr->frame_control);
3490 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3491 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
3492 level = MSG_EXCESSIVE;
3493 }
3494
3495 wpa_dbg(wpa_s, level, "Event %s (%d) received",
3496 event_to_string(event), event);
3497 }
3498 #endif /* CONFIG_NO_STDOUT_DEBUG */
3499
3500 switch (event) {
3501 case EVENT_AUTH:
3502 #ifdef CONFIG_FST
3503 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
3504 data->auth.ies_len))
3505 wpa_printf(MSG_DEBUG,
3506 "FST: MB IEs updated from auth IE");
3507 #endif /* CONFIG_FST */
3508 sme_event_auth(wpa_s, data);
3509 break;
3510 case EVENT_ASSOC:
3511 #ifdef CONFIG_TESTING_OPTIONS
3512 if (wpa_s->ignore_auth_resp) {
3513 wpa_printf(MSG_INFO,
3514 "EVENT_ASSOC - ignore_auth_resp active!");
3515 break;
3516 }
3517 #endif /* CONFIG_TESTING_OPTIONS */
3518 wpa_supplicant_event_assoc(wpa_s, data);
3519 if (data && data->assoc_info.authorized)
3520 wpa_supplicant_event_assoc_auth(wpa_s, data);
3521 if (data) {
3522 wpa_msg(wpa_s, MSG_INFO,
3523 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
3524 data->assoc_info.subnet_status);
3525 }
3526 break;
3527 case EVENT_DISASSOC:
3528 wpas_event_disassoc(wpa_s,
3529 data ? &data->disassoc_info : NULL);
3530 break;
3531 case EVENT_DEAUTH:
3532 #ifdef CONFIG_TESTING_OPTIONS
3533 if (wpa_s->ignore_auth_resp) {
3534 wpa_printf(MSG_INFO,
3535 "EVENT_DEAUTH - ignore_auth_resp active!");
3536 break;
3537 }
3538 #endif /* CONFIG_TESTING_OPTIONS */
3539 wpas_event_deauth(wpa_s,
3540 data ? &data->deauth_info : NULL);
3541 break;
3542 case EVENT_MICHAEL_MIC_FAILURE:
3543 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3544 break;
3545 #ifndef CONFIG_NO_SCAN_PROCESSING
3546 case EVENT_SCAN_STARTED:
3547 if (wpa_s->own_scan_requested ||
3548 (data && !data->scan_info.external_scan)) {
3549 struct os_reltime diff;
3550
3551 os_get_reltime(&wpa_s->scan_start_time);
3552 os_reltime_sub(&wpa_s->scan_start_time,
3553 &wpa_s->scan_trigger_time, &diff);
3554 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3555 diff.sec, diff.usec);
3556 wpa_s->own_scan_requested = 0;
3557 wpa_s->own_scan_running = 1;
3558 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3559 wpa_s->manual_scan_use_id) {
3560 wpa_msg_ctrl(wpa_s, MSG_INFO,
3561 WPA_EVENT_SCAN_STARTED "id=%u",
3562 wpa_s->manual_scan_id);
3563 } else {
3564 wpa_msg_ctrl(wpa_s, MSG_INFO,
3565 WPA_EVENT_SCAN_STARTED);
3566 }
3567 } else {
3568 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3569 wpa_s->radio->external_scan_running = 1;
3570 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
3571 }
3572 break;
3573 case EVENT_SCAN_RESULTS:
3574 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3575 wpa_s->scan_res_handler = NULL;
3576 wpa_s->own_scan_running = 0;
3577 wpa_s->radio->external_scan_running = 0;
3578 wpa_s->last_scan_req = NORMAL_SCAN_REQ;
3579 break;
3580 }
3581
3582 if (!(data && data->scan_info.external_scan) &&
3583 os_reltime_initialized(&wpa_s->scan_start_time)) {
3584 struct os_reltime now, diff;
3585 os_get_reltime(&now);
3586 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3587 wpa_s->scan_start_time.sec = 0;
3588 wpa_s->scan_start_time.usec = 0;
3589 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3590 diff.sec, diff.usec);
3591 }
3592 if (wpa_supplicant_event_scan_results(wpa_s, data))
3593 break; /* interface may have been removed */
3594 if (!(data && data->scan_info.external_scan))
3595 wpa_s->own_scan_running = 0;
3596 if (data && data->scan_info.nl_scan_event)
3597 wpa_s->radio->external_scan_running = 0;
3598 radio_work_check_next(wpa_s);
3599 break;
3600 #endif /* CONFIG_NO_SCAN_PROCESSING */
3601 case EVENT_ASSOCINFO:
3602 wpa_supplicant_event_associnfo(wpa_s, data);
3603 break;
3604 case EVENT_INTERFACE_STATUS:
3605 wpa_supplicant_event_interface_status(wpa_s, data);
3606 break;
3607 case EVENT_PMKID_CANDIDATE:
3608 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3609 break;
3610 #ifdef CONFIG_PEERKEY
3611 case EVENT_STKSTART:
3612 wpa_supplicant_event_stkstart(wpa_s, data);
3613 break;
3614 #endif /* CONFIG_PEERKEY */
3615 #ifdef CONFIG_TDLS
3616 case EVENT_TDLS:
3617 wpa_supplicant_event_tdls(wpa_s, data);
3618 break;
3619 #endif /* CONFIG_TDLS */
3620 #ifdef CONFIG_WNM
3621 case EVENT_WNM:
3622 wpa_supplicant_event_wnm(wpa_s, data);
3623 break;
3624 #endif /* CONFIG_WNM */
3625 #ifdef CONFIG_IEEE80211R
3626 case EVENT_FT_RESPONSE:
3627 wpa_supplicant_event_ft_response(wpa_s, data);
3628 break;
3629 #endif /* CONFIG_IEEE80211R */
3630 #ifdef CONFIG_IBSS_RSN
3631 case EVENT_IBSS_RSN_START:
3632 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3633 break;
3634 #endif /* CONFIG_IBSS_RSN */
3635 case EVENT_ASSOC_REJECT:
3636 if (data->assoc_reject.bssid)
3637 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3638 "bssid=" MACSTR " status_code=%u%s",
3639 MAC2STR(data->assoc_reject.bssid),
3640 data->assoc_reject.status_code,
3641 data->assoc_reject.timed_out ? " timeout" : "");
3642 else
3643 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3644 "status_code=%u%s",
3645 data->assoc_reject.status_code,
3646 data->assoc_reject.timed_out ? " timeout" : "");
3647 wpa_s->assoc_status_code = data->assoc_reject.status_code;
3648 wpas_notify_assoc_status_code(wpa_s);
3649 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3650 sme_event_assoc_reject(wpa_s, data);
3651 else {
3652 const u8 *bssid = data->assoc_reject.bssid;
3653 if (bssid == NULL || is_zero_ether_addr(bssid))
3654 bssid = wpa_s->pending_bssid;
3655 wpas_connection_failed(wpa_s, bssid);
3656 wpa_supplicant_mark_disassoc(wpa_s);
3657 }
3658 break;
3659 case EVENT_AUTH_TIMED_OUT:
3660 /* It is possible to get this event from earlier connection */
3661 if (wpa_s->current_ssid &&
3662 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3663 wpa_dbg(wpa_s, MSG_DEBUG,
3664 "Ignore AUTH_TIMED_OUT in mesh configuration");
3665 break;
3666 }
3667 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3668 sme_event_auth_timed_out(wpa_s, data);
3669 break;
3670 case EVENT_ASSOC_TIMED_OUT:
3671 /* It is possible to get this event from earlier connection */
3672 if (wpa_s->current_ssid &&
3673 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3674 wpa_dbg(wpa_s, MSG_DEBUG,
3675 "Ignore ASSOC_TIMED_OUT in mesh configuration");
3676 break;
3677 }
3678 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3679 sme_event_assoc_timed_out(wpa_s, data);
3680 break;
3681 case EVENT_TX_STATUS:
3682 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3683 " type=%d stype=%d",
3684 MAC2STR(data->tx_status.dst),
3685 data->tx_status.type, data->tx_status.stype);
3686 #ifdef CONFIG_AP
3687 if (wpa_s->ap_iface == NULL) {
3688 #ifdef CONFIG_OFFCHANNEL
3689 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3690 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
3691 offchannel_send_action_tx_status(
3692 wpa_s, data->tx_status.dst,
3693 data->tx_status.data,
3694 data->tx_status.data_len,
3695 data->tx_status.ack ?
3696 OFFCHANNEL_SEND_ACTION_SUCCESS :
3697 OFFCHANNEL_SEND_ACTION_NO_ACK);
3698 #endif /* CONFIG_OFFCHANNEL */
3699 break;
3700 }
3701 #endif /* CONFIG_AP */
3702 #ifdef CONFIG_OFFCHANNEL
3703 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3704 MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst));
3705 /*
3706 * Catch TX status events for Action frames we sent via group
3707 * interface in GO mode, or via standalone AP interface.
3708 * Note, wpa_s->p2pdev will be the same as wpa_s->parent,
3709 * except when the primary interface is used as a GO interface
3710 * (for drivers which do not have group interface concurrency)
3711 */
3712 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3713 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3714 os_memcmp(wpa_s->p2pdev->pending_action_dst,
3715 data->tx_status.dst, ETH_ALEN) == 0) {
3716 offchannel_send_action_tx_status(
3717 wpa_s->p2pdev, data->tx_status.dst,
3718 data->tx_status.data,
3719 data->tx_status.data_len,
3720 data->tx_status.ack ?
3721 OFFCHANNEL_SEND_ACTION_SUCCESS :
3722 OFFCHANNEL_SEND_ACTION_NO_ACK);
3723 break;
3724 }
3725 #endif /* CONFIG_OFFCHANNEL */
3726 #ifdef CONFIG_AP
3727 switch (data->tx_status.type) {
3728 case WLAN_FC_TYPE_MGMT:
3729 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3730 data->tx_status.data_len,
3731 data->tx_status.stype,
3732 data->tx_status.ack);
3733 break;
3734 case WLAN_FC_TYPE_DATA:
3735 ap_tx_status(wpa_s, data->tx_status.dst,
3736 data->tx_status.data,
3737 data->tx_status.data_len,
3738 data->tx_status.ack);
3739 break;
3740 }
3741 #endif /* CONFIG_AP */
3742 break;
3743 #ifdef CONFIG_AP
3744 case EVENT_EAPOL_TX_STATUS:
3745 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3746 data->eapol_tx_status.data,
3747 data->eapol_tx_status.data_len,
3748 data->eapol_tx_status.ack);
3749 break;
3750 case EVENT_DRIVER_CLIENT_POLL_OK:
3751 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3752 break;
3753 case EVENT_RX_FROM_UNKNOWN:
3754 if (wpa_s->ap_iface == NULL)
3755 break;
3756 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3757 data->rx_from_unknown.wds);
3758 break;
3759 case EVENT_CH_SWITCH:
3760 if (!data || !wpa_s->current_ssid)
3761 break;
3762
3763 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CHANNEL_SWITCH
3764 "freq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d",
3765 data->ch_switch.freq,
3766 data->ch_switch.ht_enabled,
3767 data->ch_switch.ch_offset,
3768 channel_width_to_string(data->ch_switch.ch_width),
3769 data->ch_switch.cf1,
3770 data->ch_switch.cf2);
3771
3772 wpa_s->assoc_freq = data->ch_switch.freq;
3773 wpa_s->current_ssid->frequency = data->ch_switch.freq;
3774
3775 if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
3776 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
3777 wpa_s->current_ssid->mode ==
3778 WPAS_MODE_P2P_GROUP_FORMATION) {
3779 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3780 data->ch_switch.ht_enabled,
3781 data->ch_switch.ch_offset,
3782 data->ch_switch.ch_width,
3783 data->ch_switch.cf1,
3784 data->ch_switch.cf2);
3785 }
3786
3787 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
3788 break;
3789 #ifdef NEED_AP_MLME
3790 case EVENT_DFS_RADAR_DETECTED:
3791 if (data)
3792 wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event);
3793 break;
3794 case EVENT_DFS_CAC_STARTED:
3795 if (data)
3796 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
3797 break;
3798 case EVENT_DFS_CAC_FINISHED:
3799 if (data)
3800 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
3801 break;
3802 case EVENT_DFS_CAC_ABORTED:
3803 if (data)
3804 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
3805 break;
3806 case EVENT_DFS_NOP_FINISHED:
3807 if (data)
3808 wpas_event_dfs_cac_nop_finished(wpa_s,
3809 &data->dfs_event);
3810 break;
3811 #endif /* NEED_AP_MLME */
3812 #endif /* CONFIG_AP */
3813 case EVENT_RX_MGMT: {
3814 u16 fc, stype;
3815 const struct ieee80211_mgmt *mgmt;
3816
3817 #ifdef CONFIG_TESTING_OPTIONS
3818 if (wpa_s->ext_mgmt_frame_handling) {
3819 struct rx_mgmt *rx = &data->rx_mgmt;
3820 size_t hex_len = 2 * rx->frame_len + 1;
3821 char *hex = os_malloc(hex_len);
3822 if (hex) {
3823 wpa_snprintf_hex(hex, hex_len,
3824 rx->frame, rx->frame_len);
3825 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3826 rx->freq, rx->datarate, rx->ssi_signal,
3827 hex);
3828 os_free(hex);
3829 }
3830 break;
3831 }
3832 #endif /* CONFIG_TESTING_OPTIONS */
3833
3834 mgmt = (const struct ieee80211_mgmt *)
3835 data->rx_mgmt.frame;
3836 fc = le_to_host16(mgmt->frame_control);
3837 stype = WLAN_FC_GET_STYPE(fc);
3838
3839 #ifdef CONFIG_AP
3840 if (wpa_s->ap_iface == NULL) {
3841 #endif /* CONFIG_AP */
3842 #ifdef CONFIG_P2P
3843 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3844 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
3845 const u8 *src = mgmt->sa;
3846 const u8 *ie;
3847 size_t ie_len;
3848
3849 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
3850 ie_len = data->rx_mgmt.frame_len -
3851 IEEE80211_HDRLEN;
3852 wpas_p2p_probe_req_rx(
3853 wpa_s, src, mgmt->da,
3854 mgmt->bssid, ie, ie_len,
3855 data->rx_mgmt.freq,
3856 data->rx_mgmt.ssi_signal);
3857 break;
3858 }
3859 #endif /* CONFIG_P2P */
3860 #ifdef CONFIG_IBSS_RSN
3861 if (wpa_s->current_ssid &&
3862 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3863 stype == WLAN_FC_STYPE_AUTH &&
3864 data->rx_mgmt.frame_len >= 30) {
3865 wpa_supplicant_event_ibss_auth(wpa_s, data);
3866 break;
3867 }
3868 #endif /* CONFIG_IBSS_RSN */
3869
3870 if (stype == WLAN_FC_STYPE_ACTION) {
3871 wpas_event_rx_mgmt_action(
3872 wpa_s, data->rx_mgmt.frame,
3873 data->rx_mgmt.frame_len,
3874 data->rx_mgmt.freq,
3875 data->rx_mgmt.ssi_signal);
3876 break;
3877 }
3878
3879 if (wpa_s->ifmsh) {
3880 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3881 break;
3882 }
3883
3884 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3885 "management frame in non-AP mode");
3886 break;
3887 #ifdef CONFIG_AP
3888 }
3889
3890 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3891 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
3892 const u8 *ie;
3893 size_t ie_len;
3894
3895 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
3896 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
3897
3898 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3899 mgmt->bssid, ie, ie_len,
3900 data->rx_mgmt.ssi_signal);
3901 }
3902
3903 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
3904 #endif /* CONFIG_AP */
3905 break;
3906 }
3907 case EVENT_RX_PROBE_REQ:
3908 if (data->rx_probe_req.sa == NULL ||
3909 data->rx_probe_req.ie == NULL)
3910 break;
3911 #ifdef CONFIG_AP
3912 if (wpa_s->ap_iface) {
3913 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3914 data->rx_probe_req.sa,
3915 data->rx_probe_req.da,
3916 data->rx_probe_req.bssid,
3917 data->rx_probe_req.ie,
3918 data->rx_probe_req.ie_len,
3919 data->rx_probe_req.ssi_signal);
3920 break;
3921 }
3922 #endif /* CONFIG_AP */
3923 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
3924 data->rx_probe_req.da,
3925 data->rx_probe_req.bssid,
3926 data->rx_probe_req.ie,
3927 data->rx_probe_req.ie_len,
3928 0,
3929 data->rx_probe_req.ssi_signal);
3930 break;
3931 case EVENT_REMAIN_ON_CHANNEL:
3932 #ifdef CONFIG_OFFCHANNEL
3933 offchannel_remain_on_channel_cb(
3934 wpa_s, data->remain_on_channel.freq,
3935 data->remain_on_channel.duration);
3936 #endif /* CONFIG_OFFCHANNEL */
3937 wpas_p2p_remain_on_channel_cb(
3938 wpa_s, data->remain_on_channel.freq,
3939 data->remain_on_channel.duration);
3940 break;
3941 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
3942 #ifdef CONFIG_OFFCHANNEL
3943 offchannel_cancel_remain_on_channel_cb(
3944 wpa_s, data->remain_on_channel.freq);
3945 #endif /* CONFIG_OFFCHANNEL */
3946 wpas_p2p_cancel_remain_on_channel_cb(
3947 wpa_s, data->remain_on_channel.freq);
3948 break;
3949 case EVENT_EAPOL_RX:
3950 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3951 data->eapol_rx.data,
3952 data->eapol_rx.data_len);
3953 break;
3954 case EVENT_SIGNAL_CHANGE:
3955 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3956 "above=%d signal=%d noise=%d txrate=%d",
3957 data->signal_change.above_threshold,
3958 data->signal_change.current_signal,
3959 data->signal_change.current_noise,
3960 data->signal_change.current_txrate);
3961 wpa_bss_update_level(wpa_s->current_bss,
3962 data->signal_change.current_signal);
3963 bgscan_notify_signal_change(
3964 wpa_s, data->signal_change.above_threshold,
3965 data->signal_change.current_signal,
3966 data->signal_change.current_noise,
3967 data->signal_change.current_txrate);
3968 break;
3969 case EVENT_INTERFACE_ENABLED:
3970 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
3971 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3972 wpa_supplicant_update_mac_addr(wpa_s);
3973 if (wpa_s->p2p_mgmt) {
3974 wpa_supplicant_set_state(wpa_s,
3975 WPA_DISCONNECTED);
3976 break;
3977 }
3978
3979 #ifdef CONFIG_AP
3980 if (!wpa_s->ap_iface) {
3981 wpa_supplicant_set_state(wpa_s,
3982 WPA_DISCONNECTED);
3983 wpa_s->scan_req = NORMAL_SCAN_REQ;
3984 wpa_supplicant_req_scan(wpa_s, 0, 0);
3985 } else
3986 wpa_supplicant_set_state(wpa_s,
3987 WPA_COMPLETED);
3988 #else /* CONFIG_AP */
3989 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3990 wpa_supplicant_req_scan(wpa_s, 0, 0);
3991 #endif /* CONFIG_AP */
3992 }
3993 break;
3994 case EVENT_INTERFACE_DISABLED:
3995 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
3996 #ifdef CONFIG_P2P
3997 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3998 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3999 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
4000 /*
4001 * Mark interface disabled if this happens to end up not
4002 * being removed as a separate P2P group interface.
4003 */
4004 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
4005 /*
4006 * The interface was externally disabled. Remove
4007 * it assuming an external entity will start a
4008 * new session if needed.
4009 */
4010 if (wpa_s->current_ssid &&
4011 wpa_s->current_ssid->p2p_group)
4012 wpas_p2p_interface_unavailable(wpa_s);
4013 else
4014 wpas_p2p_disconnect(wpa_s);
4015 /*
4016 * wpa_s instance may have been freed, so must not use
4017 * it here anymore.
4018 */
4019 break;
4020 }
4021 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
4022 p2p_in_progress(wpa_s->global->p2p) > 1) {
4023 /* This radio work will be cancelled, so clear P2P
4024 * state as well.
4025 */
4026 p2p_stop_find(wpa_s->global->p2p);
4027 }
4028 #endif /* CONFIG_P2P */
4029
4030 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
4031 /*
4032 * Indicate disconnection to keep ctrl_iface events
4033 * consistent.
4034 */
4035 wpa_supplicant_event_disassoc(
4036 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
4037 }
4038 wpa_supplicant_mark_disassoc(wpa_s);
4039 wpa_bss_flush(wpa_s);
4040 radio_remove_works(wpa_s, NULL, 0);
4041
4042 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
4043 break;
4044 case EVENT_CHANNEL_LIST_CHANGED:
4045 wpa_supplicant_update_channel_list(
4046 wpa_s, &data->channel_list_changed);
4047 break;
4048 case EVENT_INTERFACE_UNAVAILABLE:
4049 wpas_p2p_interface_unavailable(wpa_s);
4050 break;
4051 case EVENT_BEST_CHANNEL:
4052 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
4053 "(%d %d %d)",
4054 data->best_chan.freq_24, data->best_chan.freq_5,
4055 data->best_chan.freq_overall);
4056 wpa_s->best_24_freq = data->best_chan.freq_24;
4057 wpa_s->best_5_freq = data->best_chan.freq_5;
4058 wpa_s->best_overall_freq = data->best_chan.freq_overall;
4059 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
4060 data->best_chan.freq_5,
4061 data->best_chan.freq_overall);
4062 break;
4063 case EVENT_UNPROT_DEAUTH:
4064 wpa_supplicant_event_unprot_deauth(wpa_s,
4065 &data->unprot_deauth);
4066 break;
4067 case EVENT_UNPROT_DISASSOC:
4068 wpa_supplicant_event_unprot_disassoc(wpa_s,
4069 &data->unprot_disassoc);
4070 break;
4071 case EVENT_STATION_LOW_ACK:
4072 #ifdef CONFIG_AP
4073 if (wpa_s->ap_iface && data)
4074 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
4075 data->low_ack.addr);
4076 #endif /* CONFIG_AP */
4077 #ifdef CONFIG_TDLS
4078 if (data)
4079 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
4080 data->low_ack.addr);
4081 #endif /* CONFIG_TDLS */
4082 break;
4083 case EVENT_IBSS_PEER_LOST:
4084 #ifdef CONFIG_IBSS_RSN
4085 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
4086 #endif /* CONFIG_IBSS_RSN */
4087 break;
4088 case EVENT_DRIVER_GTK_REKEY:
4089 if (os_memcmp(data->driver_gtk_rekey.bssid,
4090 wpa_s->bssid, ETH_ALEN))
4091 break;
4092 if (!wpa_s->wpa)
4093 break;
4094 wpa_sm_update_replay_ctr(wpa_s->wpa,
4095 data->driver_gtk_rekey.replay_ctr);
4096 break;
4097 case EVENT_SCHED_SCAN_STOPPED:
4098 wpa_s->sched_scanning = 0;
4099 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
4100 wpa_supplicant_notify_scanning(wpa_s, 0);
4101
4102 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
4103 break;
4104
4105 /*
4106 * If the driver stopped scanning without being requested to,
4107 * request a new scan to continue scanning for networks.
4108 */
4109 if (!wpa_s->sched_scan_stop_req &&
4110 wpa_s->wpa_state == WPA_SCANNING) {
4111 wpa_dbg(wpa_s, MSG_DEBUG,
4112 "Restart scanning after unexpected sched_scan stop event");
4113 wpa_supplicant_req_scan(wpa_s, 1, 0);
4114 break;
4115 }
4116
4117 wpa_s->sched_scan_stop_req = 0;
4118
4119 /*
4120 * Start a new sched scan to continue searching for more SSIDs
4121 * either if timed out or PNO schedule scan is pending.
4122 */
4123 if (wpa_s->sched_scan_timed_out) {
4124 wpa_supplicant_req_sched_scan(wpa_s);
4125 } else if (wpa_s->pno_sched_pending) {
4126 wpa_s->pno_sched_pending = 0;
4127 wpas_start_pno(wpa_s);
4128 } else if (resched) {
4129 wpa_supplicant_req_scan(wpa_s, 0, 0);
4130 }
4131
4132 break;
4133 case EVENT_WPS_BUTTON_PUSHED:
4134 #ifdef CONFIG_WPS
4135 wpas_wps_start_pbc(wpa_s, NULL, 0);
4136 #endif /* CONFIG_WPS */
4137 break;
4138 case EVENT_AVOID_FREQUENCIES:
4139 wpa_supplicant_notify_avoid_freq(wpa_s, data);
4140 break;
4141 case EVENT_CONNECT_FAILED_REASON:
4142 #ifdef CONFIG_AP
4143 if (!wpa_s->ap_iface || !data)
4144 break;
4145 hostapd_event_connect_failed_reason(
4146 wpa_s->ap_iface->bss[0],
4147 data->connect_failed_reason.addr,
4148 data->connect_failed_reason.code);
4149 #endif /* CONFIG_AP */
4150 break;
4151 case EVENT_NEW_PEER_CANDIDATE:
4152 #ifdef CONFIG_MESH
4153 if (!wpa_s->ifmsh || !data)
4154 break;
4155 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
4156 data->mesh_peer.ies,
4157 data->mesh_peer.ie_len);
4158 #endif /* CONFIG_MESH */
4159 break;
4160 case EVENT_SURVEY:
4161 #ifdef CONFIG_AP
4162 if (!wpa_s->ap_iface)
4163 break;
4164 hostapd_event_get_survey(wpa_s->ap_iface,
4165 &data->survey_results);
4166 #endif /* CONFIG_AP */
4167 break;
4168 case EVENT_ACS_CHANNEL_SELECTED:
4169 #ifdef CONFIG_ACS
4170 if (!wpa_s->ap_iface)
4171 break;
4172 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
4173 &data->acs_selected_channels);
4174 #endif /* CONFIG_ACS */
4175 break;
4176 case EVENT_P2P_LO_STOP:
4177 #ifdef CONFIG_P2P
4178 wpa_s->p2p_lo_started = 0;
4179 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP
4180 P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d",
4181 data->p2p_lo_stop.reason_code);
4182 #endif /* CONFIG_P2P */
4183 break;
4184 default:
4185 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
4186 break;
4187 }
4188 }
4189
4190
4191 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
4192 union wpa_event_data *data)
4193 {
4194 struct wpa_supplicant *wpa_s;
4195
4196 if (event != EVENT_INTERFACE_STATUS)
4197 return;
4198
4199 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
4200 if (wpa_s && wpa_s->driver->get_ifindex) {
4201 unsigned int ifindex;
4202
4203 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
4204 if (ifindex != data->interface_status.ifindex) {
4205 wpa_dbg(wpa_s, MSG_DEBUG,
4206 "interface status ifindex %d mismatch (%d)",
4207 ifindex, data->interface_status.ifindex);
4208 return;
4209 }
4210 }
4211 #ifdef CONFIG_MATCH_IFACE
4212 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
4213 struct wpa_interface *wpa_i;
4214
4215 wpa_i = wpa_supplicant_match_iface(
4216 ctx, data->interface_status.ifname);
4217 if (!wpa_i)
4218 return;
4219 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
4220 os_free(wpa_i);
4221 if (wpa_s)
4222 wpa_s->matched = 1;
4223 }
4224 #endif /* CONFIG_MATCH_IFACE */
4225
4226 if (wpa_s)
4227 wpa_supplicant_event(wpa_s, event, data);
4228 }
Unnamed repository; edit this file 'description' to name the repository.