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Add a test framework for various wpa_supplicant failure cases
[thirdparty/hostap.git] / wpa_supplicant / events.c
1 /*
2 * WPA Supplicant - Driver event processing
3 * Copyright (c) 2003-2014, 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 "wnm_sta.h"
27 #include "notify.h"
28 #include "common/ieee802_11_defs.h"
29 #include "common/ieee802_11_common.h"
30 #include "crypto/random.h"
31 #include "blacklist.h"
32 #include "wpas_glue.h"
33 #include "wps_supplicant.h"
34 #include "ibss_rsn.h"
35 #include "sme.h"
36 #include "gas_query.h"
37 #include "p2p_supplicant.h"
38 #include "bgscan.h"
39 #include "autoscan.h"
40 #include "ap.h"
41 #include "bss.h"
42 #include "scan.h"
43 #include "offchannel.h"
44 #include "interworking.h"
45 #include "mesh.h"
46 #include "mesh_mpm.h"
47 #include "wmm_ac.h"
48
49
50 #ifndef CONFIG_NO_SCAN_PROCESSING
51 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
52 int new_scan, int own_request);
53 #endif /* CONFIG_NO_SCAN_PROCESSING */
54
55
56 static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
57 struct wpa_ssid *ssid)
58 {
59 struct os_reltime now;
60
61 if (ssid == NULL || ssid->disabled_until.sec == 0)
62 return 0;
63
64 os_get_reltime(&now);
65 if (ssid->disabled_until.sec > now.sec)
66 return ssid->disabled_until.sec - now.sec;
67
68 wpas_clear_temp_disabled(wpa_s, ssid, 0);
69
70 return 0;
71 }
72
73
74 static struct wpa_bss * wpa_supplicant_get_new_bss(
75 struct wpa_supplicant *wpa_s, const u8 *bssid)
76 {
77 struct wpa_bss *bss = NULL;
78 struct wpa_ssid *ssid = wpa_s->current_ssid;
79
80 if (ssid->ssid_len > 0)
81 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
82 if (!bss)
83 bss = wpa_bss_get_bssid(wpa_s, bssid);
84
85 return bss;
86 }
87
88
89 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
90 {
91 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
92
93 if (!bss) {
94 wpa_supplicant_update_scan_results(wpa_s);
95
96 /* Get the BSS from the new scan results */
97 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
98 }
99
100 if (bss)
101 wpa_s->current_bss = bss;
102 }
103
104
105 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
106 {
107 struct wpa_ssid *ssid, *old_ssid;
108 int res;
109
110 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
111 wpa_supplicant_update_current_bss(wpa_s);
112 return 0;
113 }
114
115 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
116 "information");
117 ssid = wpa_supplicant_get_ssid(wpa_s);
118 if (ssid == NULL) {
119 wpa_msg(wpa_s, MSG_INFO,
120 "No network configuration found for the current AP");
121 return -1;
122 }
123
124 if (wpas_network_disabled(wpa_s, ssid)) {
125 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
126 return -1;
127 }
128
129 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
130 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
131 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
132 return -1;
133 }
134
135 res = wpas_temp_disabled(wpa_s, ssid);
136 if (res > 0) {
137 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
138 "disabled for %d second(s)", res);
139 return -1;
140 }
141
142 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
143 "current AP");
144 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
145 u8 wpa_ie[80];
146 size_t wpa_ie_len = sizeof(wpa_ie);
147 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
148 wpa_ie, &wpa_ie_len) < 0)
149 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
150 } else {
151 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
152 }
153
154 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
155 eapol_sm_invalidate_cached_session(wpa_s->eapol);
156 old_ssid = wpa_s->current_ssid;
157 wpa_s->current_ssid = ssid;
158
159 wpa_supplicant_update_current_bss(wpa_s);
160
161 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
162 wpa_supplicant_initiate_eapol(wpa_s);
163 if (old_ssid != wpa_s->current_ssid)
164 wpas_notify_network_changed(wpa_s);
165
166 return 0;
167 }
168
169
170 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
171 {
172 struct wpa_supplicant *wpa_s = eloop_ctx;
173
174 if (wpa_s->countermeasures) {
175 wpa_s->countermeasures = 0;
176 wpa_drv_set_countermeasures(wpa_s, 0);
177 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
178 wpa_supplicant_req_scan(wpa_s, 0, 0);
179 }
180 }
181
182
183 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
184 {
185 int bssid_changed;
186
187 wnm_bss_keep_alive_deinit(wpa_s);
188
189 #ifdef CONFIG_IBSS_RSN
190 ibss_rsn_deinit(wpa_s->ibss_rsn);
191 wpa_s->ibss_rsn = NULL;
192 #endif /* CONFIG_IBSS_RSN */
193
194 #ifdef CONFIG_AP
195 wpa_supplicant_ap_deinit(wpa_s);
196 #endif /* CONFIG_AP */
197
198 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
199 return;
200
201 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
202 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
203 os_memset(wpa_s->bssid, 0, ETH_ALEN);
204 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
205 sme_clear_on_disassoc(wpa_s);
206 #ifdef CONFIG_P2P
207 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
208 #endif /* CONFIG_P2P */
209 wpa_s->current_bss = NULL;
210 wpa_s->assoc_freq = 0;
211
212 if (bssid_changed)
213 wpas_notify_bssid_changed(wpa_s);
214
215 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
216 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
217 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
218 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
219 wpa_s->ap_ies_from_associnfo = 0;
220 wpa_s->current_ssid = NULL;
221 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
222 wpa_s->key_mgmt = 0;
223
224 wpas_rrm_reset(wpa_s);
225 }
226
227
228 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
229 {
230 struct wpa_ie_data ie;
231 int pmksa_set = -1;
232 size_t i;
233
234 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
235 ie.pmkid == NULL)
236 return;
237
238 for (i = 0; i < ie.num_pmkid; i++) {
239 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
240 ie.pmkid + i * PMKID_LEN,
241 NULL, NULL, 0);
242 if (pmksa_set == 0) {
243 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
244 break;
245 }
246 }
247
248 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
249 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
250 }
251
252
253 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
254 union wpa_event_data *data)
255 {
256 if (data == NULL) {
257 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
258 "event");
259 return;
260 }
261 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
262 " index=%d preauth=%d",
263 MAC2STR(data->pmkid_candidate.bssid),
264 data->pmkid_candidate.index,
265 data->pmkid_candidate.preauth);
266
267 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
268 data->pmkid_candidate.index,
269 data->pmkid_candidate.preauth);
270 }
271
272
273 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
274 {
275 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
276 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
277 return 0;
278
279 #ifdef IEEE8021X_EAPOL
280 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
281 wpa_s->current_ssid &&
282 !(wpa_s->current_ssid->eapol_flags &
283 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
284 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
285 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
286 * plaintext or static WEP keys). */
287 return 0;
288 }
289 #endif /* IEEE8021X_EAPOL */
290
291 return 1;
292 }
293
294
295 /**
296 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
297 * @wpa_s: pointer to wpa_supplicant data
298 * @ssid: Configuration data for the network
299 * Returns: 0 on success, -1 on failure
300 *
301 * This function is called when starting authentication with a network that is
302 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
303 */
304 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
305 struct wpa_ssid *ssid)
306 {
307 #ifdef IEEE8021X_EAPOL
308 #ifdef PCSC_FUNCS
309 int aka = 0, sim = 0;
310
311 if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
312 wpa_s->scard != NULL || wpa_s->conf->external_sim)
313 return 0;
314
315 if (ssid == NULL || ssid->eap.eap_methods == NULL) {
316 sim = 1;
317 aka = 1;
318 } else {
319 struct eap_method_type *eap = ssid->eap.eap_methods;
320 while (eap->vendor != EAP_VENDOR_IETF ||
321 eap->method != EAP_TYPE_NONE) {
322 if (eap->vendor == EAP_VENDOR_IETF) {
323 if (eap->method == EAP_TYPE_SIM)
324 sim = 1;
325 else if (eap->method == EAP_TYPE_AKA ||
326 eap->method == EAP_TYPE_AKA_PRIME)
327 aka = 1;
328 }
329 eap++;
330 }
331 }
332
333 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
334 sim = 0;
335 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
336 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
337 NULL)
338 aka = 0;
339
340 if (!sim && !aka) {
341 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
342 "use SIM, but neither EAP-SIM nor EAP-AKA are "
343 "enabled");
344 return 0;
345 }
346
347 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
348 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
349
350 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
351 if (wpa_s->scard == NULL) {
352 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
353 "(pcsc-lite)");
354 return -1;
355 }
356 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
357 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
358 #endif /* PCSC_FUNCS */
359 #endif /* IEEE8021X_EAPOL */
360
361 return 0;
362 }
363
364
365 #ifndef CONFIG_NO_SCAN_PROCESSING
366
367 static int has_wep_key(struct wpa_ssid *ssid)
368 {
369 int i;
370
371 for (i = 0; i < NUM_WEP_KEYS; i++) {
372 if (ssid->wep_key_len[i])
373 return 1;
374 }
375
376 return 0;
377 }
378
379
380 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
381 struct wpa_ssid *ssid)
382 {
383 int privacy = 0;
384
385 if (ssid->mixed_cell)
386 return 1;
387
388 #ifdef CONFIG_WPS
389 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
390 return 1;
391 #endif /* CONFIG_WPS */
392
393 if (has_wep_key(ssid))
394 privacy = 1;
395
396 #ifdef IEEE8021X_EAPOL
397 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
398 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
399 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
400 privacy = 1;
401 #endif /* IEEE8021X_EAPOL */
402
403 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
404 privacy = 1;
405
406 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
407 privacy = 1;
408
409 if (bss->caps & IEEE80211_CAP_PRIVACY)
410 return privacy;
411 return !privacy;
412 }
413
414
415 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
416 struct wpa_ssid *ssid,
417 struct wpa_bss *bss)
418 {
419 struct wpa_ie_data ie;
420 int proto_match = 0;
421 const u8 *rsn_ie, *wpa_ie;
422 int ret;
423 int wep_ok;
424
425 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
426 if (ret >= 0)
427 return ret;
428
429 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
430 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
431 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
432 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
433 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
434
435 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
436 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
437 proto_match++;
438
439 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
440 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
441 "failed");
442 break;
443 }
444
445 if (wep_ok &&
446 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
447 {
448 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
449 "in RSN IE");
450 return 1;
451 }
452
453 if (!(ie.proto & ssid->proto)) {
454 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
455 "mismatch");
456 break;
457 }
458
459 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
460 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
461 "cipher mismatch");
462 break;
463 }
464
465 if (!(ie.group_cipher & ssid->group_cipher)) {
466 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
467 "cipher mismatch");
468 break;
469 }
470
471 if (!(ie.key_mgmt & ssid->key_mgmt)) {
472 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
473 "mismatch");
474 break;
475 }
476
477 #ifdef CONFIG_IEEE80211W
478 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
479 (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ?
480 wpa_s->conf->pmf : ssid->ieee80211w) ==
481 MGMT_FRAME_PROTECTION_REQUIRED) {
482 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
483 "frame protection");
484 break;
485 }
486 #endif /* CONFIG_IEEE80211W */
487
488 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
489 return 1;
490 }
491
492 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
493 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
494 proto_match++;
495
496 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
497 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
498 "failed");
499 break;
500 }
501
502 if (wep_ok &&
503 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
504 {
505 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
506 "in WPA IE");
507 return 1;
508 }
509
510 if (!(ie.proto & ssid->proto)) {
511 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
512 "mismatch");
513 break;
514 }
515
516 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
517 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
518 "cipher mismatch");
519 break;
520 }
521
522 if (!(ie.group_cipher & ssid->group_cipher)) {
523 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
524 "cipher mismatch");
525 break;
526 }
527
528 if (!(ie.key_mgmt & ssid->key_mgmt)) {
529 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
530 "mismatch");
531 break;
532 }
533
534 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
535 return 1;
536 }
537
538 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
539 !rsn_ie) {
540 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
541 return 1;
542 }
543
544 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
545 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
546 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
547 return 0;
548 }
549
550 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
551 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
552 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
553 return 1;
554 }
555
556 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
557 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
558 return 1;
559 }
560
561 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
562 "WPA/WPA2");
563
564 return 0;
565 }
566
567
568 static int freq_allowed(int *freqs, int freq)
569 {
570 int i;
571
572 if (freqs == NULL)
573 return 1;
574
575 for (i = 0; freqs[i]; i++)
576 if (freqs[i] == freq)
577 return 1;
578 return 0;
579 }
580
581
582 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
583 {
584 const struct hostapd_hw_modes *mode = NULL, *modes;
585 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
586 const u8 *rate_ie;
587 int i, j, k;
588
589 if (bss->freq == 0)
590 return 1; /* Cannot do matching without knowing band */
591
592 modes = wpa_s->hw.modes;
593 if (modes == NULL) {
594 /*
595 * The driver does not provide any additional information
596 * about the utilized hardware, so allow the connection attempt
597 * to continue.
598 */
599 return 1;
600 }
601
602 for (i = 0; i < wpa_s->hw.num_modes; i++) {
603 for (j = 0; j < modes[i].num_channels; j++) {
604 int freq = modes[i].channels[j].freq;
605 if (freq == bss->freq) {
606 if (mode &&
607 mode->mode == HOSTAPD_MODE_IEEE80211G)
608 break; /* do not allow 802.11b replace
609 * 802.11g */
610 mode = &modes[i];
611 break;
612 }
613 }
614 }
615
616 if (mode == NULL)
617 return 0;
618
619 for (i = 0; i < (int) sizeof(scan_ie); i++) {
620 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
621 if (rate_ie == NULL)
622 continue;
623
624 for (j = 2; j < rate_ie[1] + 2; j++) {
625 int flagged = !!(rate_ie[j] & 0x80);
626 int r = (rate_ie[j] & 0x7f) * 5;
627
628 /*
629 * IEEE Std 802.11n-2009 7.3.2.2:
630 * The new BSS Membership selector value is encoded
631 * like a legacy basic rate, but it is not a rate and
632 * only indicates if the BSS members are required to
633 * support the mandatory features of Clause 20 [HT PHY]
634 * in order to join the BSS.
635 */
636 if (flagged && ((rate_ie[j] & 0x7f) ==
637 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
638 if (!ht_supported(mode)) {
639 wpa_dbg(wpa_s, MSG_DEBUG,
640 " hardware does not support "
641 "HT PHY");
642 return 0;
643 }
644 continue;
645 }
646
647 /* There's also a VHT selector for 802.11ac */
648 if (flagged && ((rate_ie[j] & 0x7f) ==
649 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
650 if (!vht_supported(mode)) {
651 wpa_dbg(wpa_s, MSG_DEBUG,
652 " hardware does not support "
653 "VHT PHY");
654 return 0;
655 }
656 continue;
657 }
658
659 if (!flagged)
660 continue;
661
662 /* check for legacy basic rates */
663 for (k = 0; k < mode->num_rates; k++) {
664 if (mode->rates[k] == r)
665 break;
666 }
667 if (k == mode->num_rates) {
668 /*
669 * IEEE Std 802.11-2007 7.3.2.2 demands that in
670 * order to join a BSS all required rates
671 * have to be supported by the hardware.
672 */
673 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does "
674 "not support required rate %d.%d Mbps",
675 r / 10, r % 10);
676 return 0;
677 }
678 }
679 }
680
681 return 1;
682 }
683
684
685 /*
686 * Test whether BSS is in an ESS.
687 * This is done differently in DMG (60 GHz) and non-DMG bands
688 */
689 static int bss_is_ess(struct wpa_bss *bss)
690 {
691 if (bss_is_dmg(bss)) {
692 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
693 IEEE80211_CAP_DMG_AP;
694 }
695
696 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
697 IEEE80211_CAP_ESS);
698 }
699
700
701 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
702 {
703 size_t i;
704
705 for (i = 0; i < ETH_ALEN; i++) {
706 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
707 return 0;
708 }
709 return 1;
710 }
711
712
713 static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
714 {
715 size_t i;
716
717 for (i = 0; i < num; i++) {
718 const u8 *a = list + i * ETH_ALEN * 2;
719 const u8 *m = a + ETH_ALEN;
720
721 if (match_mac_mask(a, addr, m))
722 return 1;
723 }
724 return 0;
725 }
726
727
728 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
729 int i, struct wpa_bss *bss,
730 struct wpa_ssid *group,
731 int only_first_ssid)
732 {
733 u8 wpa_ie_len, rsn_ie_len;
734 int wpa;
735 struct wpa_blacklist *e;
736 const u8 *ie;
737 struct wpa_ssid *ssid;
738 int osen;
739
740 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
741 wpa_ie_len = ie ? ie[1] : 0;
742
743 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
744 rsn_ie_len = ie ? ie[1] : 0;
745
746 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
747 osen = ie != NULL;
748
749 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
750 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s%s%s",
751 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
752 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
753 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "",
754 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
755 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ?
756 " p2p" : "",
757 osen ? " osen=1" : "");
758
759 e = wpa_blacklist_get(wpa_s, bss->bssid);
760 if (e) {
761 int limit = 1;
762 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
763 /*
764 * When only a single network is enabled, we can
765 * trigger blacklisting on the first failure. This
766 * should not be done with multiple enabled networks to
767 * avoid getting forced to move into a worse ESS on
768 * single error if there are no other BSSes of the
769 * current ESS.
770 */
771 limit = 0;
772 }
773 if (e->count > limit) {
774 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
775 "(count=%d limit=%d)", e->count, limit);
776 return NULL;
777 }
778 }
779
780 if (bss->ssid_len == 0) {
781 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
782 return NULL;
783 }
784
785 if (disallowed_bssid(wpa_s, bss->bssid)) {
786 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
787 return NULL;
788 }
789
790 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
791 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
792 return NULL;
793 }
794
795 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
796
797 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
798 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
799 int res;
800
801 if (wpas_network_disabled(wpa_s, ssid)) {
802 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
803 continue;
804 }
805
806 res = wpas_temp_disabled(wpa_s, ssid);
807 if (res > 0) {
808 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
809 "temporarily for %d second(s)", res);
810 continue;
811 }
812
813 #ifdef CONFIG_WPS
814 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
815 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
816 "(WPS)");
817 continue;
818 }
819
820 if (wpa && ssid->ssid_len == 0 &&
821 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
822 check_ssid = 0;
823
824 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
825 /* Only allow wildcard SSID match if an AP
826 * advertises active WPS operation that matches
827 * with our mode. */
828 check_ssid = 1;
829 if (ssid->ssid_len == 0 &&
830 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
831 check_ssid = 0;
832 }
833 #endif /* CONFIG_WPS */
834
835 if (ssid->bssid_set && ssid->ssid_len == 0 &&
836 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
837 check_ssid = 0;
838
839 if (check_ssid &&
840 (bss->ssid_len != ssid->ssid_len ||
841 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
842 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
843 continue;
844 }
845
846 if (ssid->bssid_set &&
847 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
848 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
849 continue;
850 }
851
852 /* check blacklist */
853 if (ssid->num_bssid_blacklist &&
854 addr_in_list(bss->bssid, ssid->bssid_blacklist,
855 ssid->num_bssid_blacklist)) {
856 wpa_dbg(wpa_s, MSG_DEBUG,
857 " skip - BSSID blacklisted");
858 continue;
859 }
860
861 /* if there is a whitelist, only accept those APs */
862 if (ssid->num_bssid_whitelist &&
863 !addr_in_list(bss->bssid, ssid->bssid_whitelist,
864 ssid->num_bssid_whitelist)) {
865 wpa_dbg(wpa_s, MSG_DEBUG,
866 " skip - BSSID not in whitelist");
867 continue;
868 }
869
870 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
871 continue;
872
873 if (!osen && !wpa &&
874 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
875 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
876 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
877 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
878 "not allowed");
879 continue;
880 }
881
882 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
883 has_wep_key(ssid)) {
884 wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block");
885 continue;
886 }
887
888 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) {
889 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-OSEN network "
890 "not allowed");
891 continue;
892 }
893
894 if (!wpa_supplicant_match_privacy(bss, ssid)) {
895 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
896 "mismatch");
897 continue;
898 }
899
900 if (!bss_is_ess(bss)) {
901 wpa_dbg(wpa_s, MSG_DEBUG, " skip - not ESS network");
902 continue;
903 }
904
905 if (!freq_allowed(ssid->freq_list, bss->freq)) {
906 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
907 "allowed");
908 continue;
909 }
910
911 if (!rate_match(wpa_s, bss)) {
912 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
913 "not match");
914 continue;
915 }
916
917 #ifdef CONFIG_P2P
918 if (ssid->p2p_group &&
919 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
920 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
921 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
922 continue;
923 }
924
925 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
926 struct wpabuf *p2p_ie;
927 u8 dev_addr[ETH_ALEN];
928
929 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
930 if (ie == NULL) {
931 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element");
932 continue;
933 }
934 p2p_ie = wpa_bss_get_vendor_ie_multi(
935 bss, P2P_IE_VENDOR_TYPE);
936 if (p2p_ie == NULL) {
937 wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element");
938 continue;
939 }
940
941 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
942 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
943 ETH_ALEN) != 0) {
944 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element");
945 wpabuf_free(p2p_ie);
946 continue;
947 }
948 wpabuf_free(p2p_ie);
949 }
950
951 /*
952 * TODO: skip the AP if its P2P IE has Group Formation
953 * bit set in the P2P Group Capability Bitmap and we
954 * are not in Group Formation with that device.
955 */
956 #endif /* CONFIG_P2P */
957
958 /* Matching configuration found */
959 return ssid;
960 }
961
962 /* No matching configuration found */
963 return NULL;
964 }
965
966
967 static struct wpa_bss *
968 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
969 struct wpa_ssid *group,
970 struct wpa_ssid **selected_ssid,
971 int only_first_ssid)
972 {
973 unsigned int i;
974
975 if (only_first_ssid)
976 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
977 group->id);
978 else
979 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
980 group->priority);
981
982 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
983 struct wpa_bss *bss = wpa_s->last_scan_res[i];
984 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
985 only_first_ssid);
986 if (!*selected_ssid)
987 continue;
988 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
989 " ssid='%s'",
990 MAC2STR(bss->bssid),
991 wpa_ssid_txt(bss->ssid, bss->ssid_len));
992 return bss;
993 }
994
995 return NULL;
996 }
997
998
999 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1000 struct wpa_ssid **selected_ssid)
1001 {
1002 struct wpa_bss *selected = NULL;
1003 int prio;
1004 struct wpa_ssid *next_ssid = NULL;
1005
1006 if (wpa_s->last_scan_res == NULL ||
1007 wpa_s->last_scan_res_used == 0)
1008 return NULL; /* no scan results from last update */
1009
1010 if (wpa_s->next_ssid) {
1011 struct wpa_ssid *ssid;
1012
1013 /* check that next_ssid is still valid */
1014 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1015 if (ssid == wpa_s->next_ssid)
1016 break;
1017 }
1018 next_ssid = ssid;
1019 wpa_s->next_ssid = NULL;
1020 }
1021
1022 while (selected == NULL) {
1023 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1024 if (next_ssid && next_ssid->priority ==
1025 wpa_s->conf->pssid[prio]->priority) {
1026 selected = wpa_supplicant_select_bss(
1027 wpa_s, next_ssid, selected_ssid, 1);
1028 if (selected)
1029 break;
1030 }
1031 selected = wpa_supplicant_select_bss(
1032 wpa_s, wpa_s->conf->pssid[prio],
1033 selected_ssid, 0);
1034 if (selected)
1035 break;
1036 }
1037
1038 if (selected == NULL && wpa_s->blacklist &&
1039 !wpa_s->countermeasures) {
1040 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1041 "blacklist and try again");
1042 wpa_blacklist_clear(wpa_s);
1043 wpa_s->blacklist_cleared++;
1044 } else if (selected == NULL)
1045 break;
1046 }
1047
1048 return selected;
1049 }
1050
1051
1052 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1053 int timeout_sec, int timeout_usec)
1054 {
1055 if (!wpa_supplicant_enabled_networks(wpa_s)) {
1056 /*
1057 * No networks are enabled; short-circuit request so
1058 * we don't wait timeout seconds before transitioning
1059 * to INACTIVE state.
1060 */
1061 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1062 "since there are no enabled networks");
1063 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1064 return;
1065 }
1066
1067 wpa_s->scan_for_connection = 1;
1068 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1069 }
1070
1071
1072 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1073 struct wpa_bss *selected,
1074 struct wpa_ssid *ssid)
1075 {
1076 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1077 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1078 "PBC session overlap");
1079 #ifdef CONFIG_P2P
1080 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1081 wpa_s->p2p_in_provisioning) {
1082 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1083 wpa_s, NULL);
1084 return -1;
1085 }
1086 #endif /* CONFIG_P2P */
1087
1088 #ifdef CONFIG_WPS
1089 wpas_wps_cancel(wpa_s);
1090 #endif /* CONFIG_WPS */
1091 return -1;
1092 }
1093
1094 wpa_msg(wpa_s, MSG_DEBUG,
1095 "Considering connect request: reassociate: %d selected: "
1096 MACSTR " bssid: " MACSTR " pending: " MACSTR
1097 " wpa_state: %s ssid=%p current_ssid=%p",
1098 wpa_s->reassociate, MAC2STR(selected->bssid),
1099 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1100 wpa_supplicant_state_txt(wpa_s->wpa_state),
1101 ssid, wpa_s->current_ssid);
1102
1103 /*
1104 * Do not trigger new association unless the BSSID has changed or if
1105 * reassociation is requested. If we are in process of associating with
1106 * the selected BSSID, do not trigger new attempt.
1107 */
1108 if (wpa_s->reassociate ||
1109 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1110 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1111 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1112 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1113 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1114 0) ||
1115 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1116 ssid != wpa_s->current_ssid)))) {
1117 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1118 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1119 return 0;
1120 }
1121 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1122 MAC2STR(selected->bssid));
1123 wpa_supplicant_associate(wpa_s, selected, ssid);
1124 } else {
1125 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1126 "connect with the selected AP");
1127 }
1128
1129 return 0;
1130 }
1131
1132
1133 static struct wpa_ssid *
1134 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1135 {
1136 int prio;
1137 struct wpa_ssid *ssid;
1138
1139 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1140 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1141 {
1142 if (wpas_network_disabled(wpa_s, ssid))
1143 continue;
1144 if (ssid->mode == IEEE80211_MODE_IBSS ||
1145 ssid->mode == IEEE80211_MODE_AP ||
1146 ssid->mode == IEEE80211_MODE_MESH)
1147 return ssid;
1148 }
1149 }
1150 return NULL;
1151 }
1152
1153
1154 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1155 * on BSS added and BSS changed events */
1156 static void wpa_supplicant_rsn_preauth_scan_results(
1157 struct wpa_supplicant *wpa_s)
1158 {
1159 struct wpa_bss *bss;
1160
1161 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1162 return;
1163
1164 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1165 const u8 *ssid, *rsn;
1166
1167 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1168 if (ssid == NULL)
1169 continue;
1170
1171 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1172 if (rsn == NULL)
1173 continue;
1174
1175 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1176 }
1177
1178 }
1179
1180
1181 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1182 struct wpa_bss *selected,
1183 struct wpa_ssid *ssid)
1184 {
1185 struct wpa_bss *current_bss = NULL;
1186 int min_diff;
1187
1188 if (wpa_s->reassociate)
1189 return 1; /* explicit request to reassociate */
1190 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1191 return 1; /* we are not associated; continue */
1192 if (wpa_s->current_ssid == NULL)
1193 return 1; /* unknown current SSID */
1194 if (wpa_s->current_ssid != ssid)
1195 return 1; /* different network block */
1196
1197 if (wpas_driver_bss_selection(wpa_s))
1198 return 0; /* Driver-based roaming */
1199
1200 if (wpa_s->current_ssid->ssid)
1201 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1202 wpa_s->current_ssid->ssid,
1203 wpa_s->current_ssid->ssid_len);
1204 if (!current_bss)
1205 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1206
1207 if (!current_bss)
1208 return 1; /* current BSS not seen in scan results */
1209
1210 if (current_bss == selected)
1211 return 0;
1212
1213 if (selected->last_update_idx > current_bss->last_update_idx)
1214 return 1; /* current BSS not seen in the last scan */
1215
1216 #ifndef CONFIG_NO_ROAMING
1217 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1218 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
1219 MAC2STR(current_bss->bssid), current_bss->level);
1220 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
1221 MAC2STR(selected->bssid), selected->level);
1222
1223 if (wpa_s->current_ssid->bssid_set &&
1224 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1225 0) {
1226 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1227 "has preferred BSSID");
1228 return 1;
1229 }
1230
1231 if (current_bss->level < 0 && current_bss->level > selected->level) {
1232 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1233 "signal level");
1234 return 0;
1235 }
1236
1237 min_diff = 2;
1238 if (current_bss->level < 0) {
1239 if (current_bss->level < -85)
1240 min_diff = 1;
1241 else if (current_bss->level < -80)
1242 min_diff = 2;
1243 else if (current_bss->level < -75)
1244 min_diff = 3;
1245 else if (current_bss->level < -70)
1246 min_diff = 4;
1247 else
1248 min_diff = 5;
1249 }
1250 if (abs(current_bss->level - selected->level) < min_diff) {
1251 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1252 "in signal level");
1253 return 0;
1254 }
1255
1256 return 1;
1257 #else /* CONFIG_NO_ROAMING */
1258 return 0;
1259 #endif /* CONFIG_NO_ROAMING */
1260 }
1261
1262
1263 /* Return != 0 if no scan results could be fetched or if scan results should not
1264 * be shared with other virtual interfaces. */
1265 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1266 union wpa_event_data *data,
1267 int own_request)
1268 {
1269 struct wpa_scan_results *scan_res = NULL;
1270 int ret = 0;
1271 int ap = 0;
1272 #ifndef CONFIG_NO_RANDOM_POOL
1273 size_t i, num;
1274 #endif /* CONFIG_NO_RANDOM_POOL */
1275
1276 #ifdef CONFIG_AP
1277 if (wpa_s->ap_iface)
1278 ap = 1;
1279 #endif /* CONFIG_AP */
1280
1281 wpa_supplicant_notify_scanning(wpa_s, 0);
1282
1283 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1284 data ? &data->scan_info :
1285 NULL, 1);
1286 if (scan_res == NULL) {
1287 if (wpa_s->conf->ap_scan == 2 || ap ||
1288 wpa_s->scan_res_handler == scan_only_handler)
1289 return -1;
1290 if (!own_request)
1291 return -1;
1292 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1293 "scanning again");
1294 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1295 ret = -1;
1296 goto scan_work_done;
1297 }
1298
1299 #ifndef CONFIG_NO_RANDOM_POOL
1300 num = scan_res->num;
1301 if (num > 10)
1302 num = 10;
1303 for (i = 0; i < num; i++) {
1304 u8 buf[5];
1305 struct wpa_scan_res *res = scan_res->res[i];
1306 buf[0] = res->bssid[5];
1307 buf[1] = res->qual & 0xff;
1308 buf[2] = res->noise & 0xff;
1309 buf[3] = res->level & 0xff;
1310 buf[4] = res->tsf & 0xff;
1311 random_add_randomness(buf, sizeof(buf));
1312 }
1313 #endif /* CONFIG_NO_RANDOM_POOL */
1314
1315 if (own_request && wpa_s->scan_res_handler &&
1316 (wpa_s->own_scan_running || !wpa_s->external_scan_running)) {
1317 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1318 struct wpa_scan_results *scan_res);
1319
1320 scan_res_handler = wpa_s->scan_res_handler;
1321 wpa_s->scan_res_handler = NULL;
1322 scan_res_handler(wpa_s, scan_res);
1323 ret = -2;
1324 goto scan_work_done;
1325 }
1326
1327 if (ap) {
1328 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1329 #ifdef CONFIG_AP
1330 if (wpa_s->ap_iface->scan_cb)
1331 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1332 #endif /* CONFIG_AP */
1333 goto scan_work_done;
1334 }
1335
1336 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1337 wpa_s->own_scan_running, wpa_s->external_scan_running);
1338 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1339 wpa_s->manual_scan_use_id && wpa_s->own_scan_running) {
1340 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1341 wpa_s->manual_scan_id);
1342 wpa_s->manual_scan_use_id = 0;
1343 } else {
1344 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1345 }
1346 wpas_notify_scan_results(wpa_s);
1347
1348 wpas_notify_scan_done(wpa_s, 1);
1349
1350 if (!wpa_s->own_scan_running && wpa_s->external_scan_running) {
1351 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1352 wpa_scan_results_free(scan_res);
1353 return 0;
1354 }
1355
1356 if (wnm_scan_process(wpa_s, 1) > 0)
1357 goto scan_work_done;
1358
1359 if (sme_proc_obss_scan(wpa_s) > 0)
1360 goto scan_work_done;
1361
1362 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1363 goto scan_work_done;
1364
1365 if (autoscan_notify_scan(wpa_s, scan_res))
1366 goto scan_work_done;
1367
1368 if (wpa_s->disconnected) {
1369 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1370 goto scan_work_done;
1371 }
1372
1373 if (!wpas_driver_bss_selection(wpa_s) &&
1374 bgscan_notify_scan(wpa_s, scan_res) == 1)
1375 goto scan_work_done;
1376
1377 wpas_wps_update_ap_info(wpa_s, scan_res);
1378
1379 wpa_scan_results_free(scan_res);
1380
1381 if (wpa_s->scan_work) {
1382 struct wpa_radio_work *work = wpa_s->scan_work;
1383 wpa_s->scan_work = NULL;
1384 radio_work_done(work);
1385 }
1386
1387 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
1388
1389 scan_work_done:
1390 wpa_scan_results_free(scan_res);
1391 if (wpa_s->scan_work) {
1392 struct wpa_radio_work *work = wpa_s->scan_work;
1393 wpa_s->scan_work = NULL;
1394 radio_work_done(work);
1395 }
1396 return ret;
1397 }
1398
1399
1400 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
1401 int new_scan, int own_request)
1402 {
1403 struct wpa_bss *selected;
1404 struct wpa_ssid *ssid = NULL;
1405
1406 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1407
1408 if (selected) {
1409 int skip;
1410 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1411 if (skip) {
1412 if (new_scan)
1413 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1414 return 0;
1415 }
1416
1417 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1418 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1419 return -1;
1420 }
1421 if (new_scan)
1422 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1423 /*
1424 * Do not notify other virtual radios of scan results since we do not
1425 * want them to start other associations at the same time.
1426 */
1427 return 1;
1428 } else {
1429 #ifdef CONFIG_MESH
1430 if (wpa_s->ifmsh) {
1431 wpa_msg(wpa_s, MSG_INFO,
1432 "Avoiding join because we already joined a mesh group");
1433 return 0;
1434 }
1435 #endif /* CONFIG_MESH */
1436 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1437 ssid = wpa_supplicant_pick_new_network(wpa_s);
1438 if (ssid) {
1439 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1440 wpa_supplicant_associate(wpa_s, NULL, ssid);
1441 if (new_scan)
1442 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1443 } else if (own_request) {
1444 /*
1445 * No SSID found. If SCAN results are as a result of
1446 * own scan request and not due to a scan request on
1447 * another shared interface, try another scan.
1448 */
1449 int timeout_sec = wpa_s->scan_interval;
1450 int timeout_usec = 0;
1451 #ifdef CONFIG_P2P
1452 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1)
1453 return 0;
1454
1455 if (wpa_s->p2p_in_provisioning ||
1456 wpa_s->show_group_started ||
1457 wpa_s->p2p_in_invitation) {
1458 /*
1459 * Use shorter wait during P2P Provisioning
1460 * state and during P2P join-a-group operation
1461 * to speed up group formation.
1462 */
1463 timeout_sec = 0;
1464 timeout_usec = 250000;
1465 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1466 timeout_usec);
1467 return 0;
1468 }
1469 #endif /* CONFIG_P2P */
1470 #ifdef CONFIG_INTERWORKING
1471 if (wpa_s->conf->auto_interworking &&
1472 wpa_s->conf->interworking &&
1473 wpa_s->conf->cred) {
1474 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1475 "start ANQP fetch since no matching "
1476 "networks found");
1477 wpa_s->network_select = 1;
1478 wpa_s->auto_network_select = 1;
1479 interworking_start_fetch_anqp(wpa_s);
1480 return 1;
1481 }
1482 #endif /* CONFIG_INTERWORKING */
1483 #ifdef CONFIG_WPS
1484 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
1485 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1486 timeout_sec = 0;
1487 timeout_usec = 500000;
1488 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1489 timeout_usec);
1490 return 0;
1491 }
1492 #endif /* CONFIG_WPS */
1493 if (wpa_supplicant_req_sched_scan(wpa_s))
1494 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1495 timeout_usec);
1496 }
1497 }
1498 return 0;
1499 }
1500
1501
1502 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1503 union wpa_event_data *data)
1504 {
1505 struct wpa_supplicant *ifs;
1506
1507 if (_wpa_supplicant_event_scan_results(wpa_s, data, 1) != 0) {
1508 /*
1509 * If no scan results could be fetched, then no need to
1510 * notify those interfaces that did not actually request
1511 * this scan. Similarly, if scan results started a new operation on this
1512 * interface, do not notify other interfaces to avoid concurrent
1513 * operations during a connection attempt.
1514 */
1515 return;
1516 }
1517
1518 /*
1519 * Check other interfaces to see if they share the same radio. If
1520 * so, they get updated with this same scan info.
1521 */
1522 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1523 radio_list) {
1524 if (ifs != wpa_s) {
1525 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1526 "sibling", ifs->ifname);
1527 _wpa_supplicant_event_scan_results(ifs, data, 0);
1528 }
1529 }
1530 }
1531
1532 #endif /* CONFIG_NO_SCAN_PROCESSING */
1533
1534
1535 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1536 {
1537 #ifdef CONFIG_NO_SCAN_PROCESSING
1538 return -1;
1539 #else /* CONFIG_NO_SCAN_PROCESSING */
1540 struct os_reltime now;
1541
1542 if (wpa_s->last_scan_res_used <= 0)
1543 return -1;
1544
1545 os_get_reltime(&now);
1546 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
1547 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1548 return -1;
1549 }
1550
1551 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
1552 #endif /* CONFIG_NO_SCAN_PROCESSING */
1553 }
1554
1555 #ifdef CONFIG_WNM
1556
1557 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1558 {
1559 struct wpa_supplicant *wpa_s = eloop_ctx;
1560
1561 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1562 return;
1563
1564 if (!wpa_s->no_keep_alive) {
1565 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1566 MAC2STR(wpa_s->bssid));
1567 /* TODO: could skip this if normal data traffic has been sent */
1568 /* TODO: Consider using some more appropriate data frame for
1569 * this */
1570 if (wpa_s->l2)
1571 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1572 (u8 *) "", 0);
1573 }
1574
1575 #ifdef CONFIG_SME
1576 if (wpa_s->sme.bss_max_idle_period) {
1577 unsigned int msec;
1578 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1579 if (msec > 100)
1580 msec -= 100;
1581 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1582 wnm_bss_keep_alive, wpa_s, NULL);
1583 }
1584 #endif /* CONFIG_SME */
1585 }
1586
1587
1588 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1589 const u8 *ies, size_t ies_len)
1590 {
1591 struct ieee802_11_elems elems;
1592
1593 if (ies == NULL)
1594 return;
1595
1596 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1597 return;
1598
1599 #ifdef CONFIG_SME
1600 if (elems.bss_max_idle_period) {
1601 unsigned int msec;
1602 wpa_s->sme.bss_max_idle_period =
1603 WPA_GET_LE16(elems.bss_max_idle_period);
1604 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1605 "TU)%s", wpa_s->sme.bss_max_idle_period,
1606 (elems.bss_max_idle_period[2] & 0x01) ?
1607 " (protected keep-live required)" : "");
1608 if (wpa_s->sme.bss_max_idle_period == 0)
1609 wpa_s->sme.bss_max_idle_period = 1;
1610 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1611 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1612 /* msec times 1000 */
1613 msec = wpa_s->sme.bss_max_idle_period * 1024;
1614 if (msec > 100)
1615 msec -= 100;
1616 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1617 wnm_bss_keep_alive, wpa_s,
1618 NULL);
1619 }
1620 }
1621 #endif /* CONFIG_SME */
1622 }
1623
1624 #endif /* CONFIG_WNM */
1625
1626
1627 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1628 {
1629 #ifdef CONFIG_WNM
1630 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1631 #endif /* CONFIG_WNM */
1632 }
1633
1634
1635 #ifdef CONFIG_INTERWORKING
1636
1637 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1638 size_t len)
1639 {
1640 int res;
1641
1642 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1643 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1644 if (res) {
1645 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1646 }
1647
1648 return res;
1649 }
1650
1651
1652 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1653 const u8 *ies, size_t ies_len)
1654 {
1655 struct ieee802_11_elems elems;
1656
1657 if (ies == NULL)
1658 return;
1659
1660 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1661 return;
1662
1663 if (elems.qos_map_set) {
1664 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1665 elems.qos_map_set_len);
1666 }
1667 }
1668
1669 #endif /* CONFIG_INTERWORKING */
1670
1671
1672 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1673 union wpa_event_data *data)
1674 {
1675 int l, len, found = 0, wpa_found, rsn_found;
1676 const u8 *p;
1677 #ifdef CONFIG_IEEE80211R
1678 u8 bssid[ETH_ALEN];
1679 #endif /* CONFIG_IEEE80211R */
1680
1681 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1682 if (data->assoc_info.req_ies)
1683 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1684 data->assoc_info.req_ies_len);
1685 if (data->assoc_info.resp_ies) {
1686 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1687 data->assoc_info.resp_ies_len);
1688 #ifdef CONFIG_TDLS
1689 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1690 data->assoc_info.resp_ies_len);
1691 #endif /* CONFIG_TDLS */
1692 #ifdef CONFIG_WNM
1693 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1694 data->assoc_info.resp_ies_len);
1695 #endif /* CONFIG_WNM */
1696 #ifdef CONFIG_INTERWORKING
1697 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1698 data->assoc_info.resp_ies_len);
1699 #endif /* CONFIG_INTERWORKING */
1700 }
1701 if (data->assoc_info.beacon_ies)
1702 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1703 data->assoc_info.beacon_ies,
1704 data->assoc_info.beacon_ies_len);
1705 if (data->assoc_info.freq)
1706 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1707 data->assoc_info.freq);
1708
1709 p = data->assoc_info.req_ies;
1710 l = data->assoc_info.req_ies_len;
1711
1712 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1713 while (p && l >= 2) {
1714 len = p[1] + 2;
1715 if (len > l) {
1716 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1717 p, l);
1718 break;
1719 }
1720 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1721 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1722 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1723 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1724 break;
1725 found = 1;
1726 wpa_find_assoc_pmkid(wpa_s);
1727 break;
1728 }
1729 l -= len;
1730 p += len;
1731 }
1732 if (!found && data->assoc_info.req_ies)
1733 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1734
1735 #ifdef CONFIG_IEEE80211R
1736 #ifdef CONFIG_SME
1737 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1738 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1739 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1740 data->assoc_info.resp_ies,
1741 data->assoc_info.resp_ies_len,
1742 bssid) < 0) {
1743 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1744 "Reassociation Response failed");
1745 wpa_supplicant_deauthenticate(
1746 wpa_s, WLAN_REASON_INVALID_IE);
1747 return -1;
1748 }
1749 }
1750
1751 p = data->assoc_info.resp_ies;
1752 l = data->assoc_info.resp_ies_len;
1753
1754 #ifdef CONFIG_WPS_STRICT
1755 if (p && wpa_s->current_ssid &&
1756 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1757 struct wpabuf *wps;
1758 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1759 if (wps == NULL) {
1760 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1761 "include WPS IE in (Re)Association Response");
1762 return -1;
1763 }
1764
1765 if (wps_validate_assoc_resp(wps) < 0) {
1766 wpabuf_free(wps);
1767 wpa_supplicant_deauthenticate(
1768 wpa_s, WLAN_REASON_INVALID_IE);
1769 return -1;
1770 }
1771 wpabuf_free(wps);
1772 }
1773 #endif /* CONFIG_WPS_STRICT */
1774
1775 /* Go through the IEs and make a copy of the MDIE, if present. */
1776 while (p && l >= 2) {
1777 len = p[1] + 2;
1778 if (len > l) {
1779 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1780 p, l);
1781 break;
1782 }
1783 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1784 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1785 wpa_s->sme.ft_used = 1;
1786 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1787 MOBILITY_DOMAIN_ID_LEN);
1788 break;
1789 }
1790 l -= len;
1791 p += len;
1792 }
1793 #endif /* CONFIG_SME */
1794
1795 /* Process FT when SME is in the driver */
1796 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
1797 wpa_ft_is_completed(wpa_s->wpa)) {
1798 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1799 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1800 data->assoc_info.resp_ies,
1801 data->assoc_info.resp_ies_len,
1802 bssid) < 0) {
1803 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1804 "Reassociation Response failed");
1805 wpa_supplicant_deauthenticate(
1806 wpa_s, WLAN_REASON_INVALID_IE);
1807 return -1;
1808 }
1809 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
1810 }
1811
1812 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1813 data->assoc_info.resp_ies_len);
1814 #endif /* CONFIG_IEEE80211R */
1815
1816 /* WPA/RSN IE from Beacon/ProbeResp */
1817 p = data->assoc_info.beacon_ies;
1818 l = data->assoc_info.beacon_ies_len;
1819
1820 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1821 */
1822 wpa_found = rsn_found = 0;
1823 while (p && l >= 2) {
1824 len = p[1] + 2;
1825 if (len > l) {
1826 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1827 p, l);
1828 break;
1829 }
1830 if (!wpa_found &&
1831 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1832 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1833 wpa_found = 1;
1834 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1835 }
1836
1837 if (!rsn_found &&
1838 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1839 rsn_found = 1;
1840 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1841 }
1842
1843 l -= len;
1844 p += len;
1845 }
1846
1847 if (!wpa_found && data->assoc_info.beacon_ies)
1848 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1849 if (!rsn_found && data->assoc_info.beacon_ies)
1850 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1851 if (wpa_found || rsn_found)
1852 wpa_s->ap_ies_from_associnfo = 1;
1853
1854 if (wpa_s->assoc_freq && data->assoc_info.freq &&
1855 wpa_s->assoc_freq != data->assoc_info.freq) {
1856 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1857 "%u to %u MHz",
1858 wpa_s->assoc_freq, data->assoc_info.freq);
1859 wpa_supplicant_update_scan_results(wpa_s);
1860 }
1861
1862 wpa_s->assoc_freq = data->assoc_info.freq;
1863
1864 return 0;
1865 }
1866
1867
1868 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
1869 {
1870 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
1871
1872 if (!wpa_s->current_bss || !wpa_s->current_ssid)
1873 return -1;
1874
1875 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
1876 return 0;
1877
1878 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
1879 WPA_IE_VENDOR_TYPE);
1880 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
1881
1882 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1883 bss_wpa ? 2 + bss_wpa[1] : 0) ||
1884 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1885 bss_rsn ? 2 + bss_rsn[1] : 0))
1886 return -1;
1887
1888 return 0;
1889 }
1890
1891
1892 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1893 union wpa_event_data *data)
1894 {
1895 u8 bssid[ETH_ALEN];
1896 int ft_completed;
1897
1898 #ifdef CONFIG_AP
1899 if (wpa_s->ap_iface) {
1900 if (!data)
1901 return;
1902 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1903 data->assoc_info.addr,
1904 data->assoc_info.req_ies,
1905 data->assoc_info.req_ies_len,
1906 data->assoc_info.reassoc);
1907 return;
1908 }
1909 #endif /* CONFIG_AP */
1910
1911 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1912 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1913 return;
1914
1915 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
1916 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
1917 wpa_supplicant_deauthenticate(
1918 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1919 return;
1920 }
1921
1922 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
1923 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
1924 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1925 MACSTR, MAC2STR(bssid));
1926 random_add_randomness(bssid, ETH_ALEN);
1927 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1928 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1929 wpas_notify_bssid_changed(wpa_s);
1930
1931 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1932 wpa_clear_keys(wpa_s, bssid);
1933 }
1934 if (wpa_supplicant_select_config(wpa_s) < 0) {
1935 wpa_supplicant_deauthenticate(
1936 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1937 return;
1938 }
1939
1940 if (wpa_s->conf->ap_scan == 1 &&
1941 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
1942 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0)
1943 wpa_msg(wpa_s, MSG_WARNING,
1944 "WPA/RSN IEs not updated");
1945 }
1946 }
1947
1948 #ifdef CONFIG_SME
1949 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1950 wpa_s->sme.prev_bssid_set = 1;
1951 wpa_s->sme.last_unprot_disconnect.sec = 0;
1952 #endif /* CONFIG_SME */
1953
1954 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1955 if (wpa_s->current_ssid) {
1956 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1957 * initialized before association, but for other modes,
1958 * initialize PC/SC here, if the current configuration needs
1959 * smartcard or SIM/USIM. */
1960 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1961 }
1962 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1963 if (wpa_s->l2)
1964 l2_packet_notify_auth_start(wpa_s->l2);
1965
1966 /*
1967 * Set portEnabled first to FALSE in order to get EAP state machine out
1968 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1969 * state machine may transit to AUTHENTICATING state based on obsolete
1970 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1971 * AUTHENTICATED without ever giving chance to EAP state machine to
1972 * reset the state.
1973 */
1974 if (!ft_completed) {
1975 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1976 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1977 }
1978 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1979 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1980 /* 802.1X::portControl = Auto */
1981 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1982 wpa_s->eapol_received = 0;
1983 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1984 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1985 (wpa_s->current_ssid &&
1986 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1987 if (wpa_s->current_ssid &&
1988 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
1989 (wpa_s->drv_flags &
1990 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
1991 /*
1992 * Set the key after having received joined-IBSS event
1993 * from the driver.
1994 */
1995 wpa_supplicant_set_wpa_none_key(wpa_s,
1996 wpa_s->current_ssid);
1997 }
1998 wpa_supplicant_cancel_auth_timeout(wpa_s);
1999 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2000 } else if (!ft_completed) {
2001 /* Timeout for receiving the first EAPOL packet */
2002 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
2003 }
2004 wpa_supplicant_cancel_scan(wpa_s);
2005
2006 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2007 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
2008 /*
2009 * We are done; the driver will take care of RSN 4-way
2010 * handshake.
2011 */
2012 wpa_supplicant_cancel_auth_timeout(wpa_s);
2013 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2014 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2015 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2016 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2017 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
2018 /*
2019 * The driver will take care of RSN 4-way handshake, so we need
2020 * to allow EAPOL supplicant to complete its work without
2021 * waiting for WPA supplicant.
2022 */
2023 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2024 } else if (ft_completed) {
2025 /*
2026 * FT protocol completed - make sure EAPOL state machine ends
2027 * up in authenticated.
2028 */
2029 wpa_supplicant_cancel_auth_timeout(wpa_s);
2030 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2031 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2032 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2033 }
2034
2035 wpa_s->last_eapol_matches_bssid = 0;
2036
2037 if (wpa_s->pending_eapol_rx) {
2038 struct os_reltime now, age;
2039 os_get_reltime(&now);
2040 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
2041 if (age.sec == 0 && age.usec < 100000 &&
2042 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2043 0) {
2044 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2045 "frame that was received just before "
2046 "association notification");
2047 wpa_supplicant_rx_eapol(
2048 wpa_s, wpa_s->pending_eapol_rx_src,
2049 wpabuf_head(wpa_s->pending_eapol_rx),
2050 wpabuf_len(wpa_s->pending_eapol_rx));
2051 }
2052 wpabuf_free(wpa_s->pending_eapol_rx);
2053 wpa_s->pending_eapol_rx = NULL;
2054 }
2055
2056 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2057 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
2058 wpa_s->current_ssid &&
2059 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2060 /* Set static WEP keys again */
2061 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2062 }
2063
2064 #ifdef CONFIG_IBSS_RSN
2065 if (wpa_s->current_ssid &&
2066 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2067 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2068 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2069 wpa_s->ibss_rsn == NULL) {
2070 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2071 if (!wpa_s->ibss_rsn) {
2072 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2073 wpa_supplicant_deauthenticate(
2074 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2075 return;
2076 }
2077
2078 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2079 }
2080 #endif /* CONFIG_IBSS_RSN */
2081
2082 wpas_wps_notify_assoc(wpa_s, bssid);
2083
2084 if (data) {
2085 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2086 data->assoc_info.resp_ies_len,
2087 &data->assoc_info.wmm_params);
2088
2089 if (wpa_s->reassoc_same_bss)
2090 wmm_ac_restore_tspecs(wpa_s);
2091 }
2092 }
2093
2094
2095 static int disconnect_reason_recoverable(u16 reason_code)
2096 {
2097 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2098 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2099 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2100 }
2101
2102
2103 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
2104 u16 reason_code,
2105 int locally_generated)
2106 {
2107 const u8 *bssid;
2108
2109 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2110 /*
2111 * At least Host AP driver and a Prism3 card seemed to be
2112 * generating streams of disconnected events when configuring
2113 * IBSS for WPA-None. Ignore them for now.
2114 */
2115 return;
2116 }
2117
2118 bssid = wpa_s->bssid;
2119 if (is_zero_ether_addr(bssid))
2120 bssid = wpa_s->pending_bssid;
2121
2122 if (!is_zero_ether_addr(bssid) ||
2123 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2124 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2125 " reason=%d%s",
2126 MAC2STR(bssid), reason_code,
2127 locally_generated ? " locally_generated=1" : "");
2128 }
2129 }
2130
2131
2132 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2133 int locally_generated)
2134 {
2135 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2136 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2137 return 0; /* Not in 4-way handshake with PSK */
2138
2139 /*
2140 * It looks like connection was lost while trying to go through PSK
2141 * 4-way handshake. Filter out known disconnection cases that are caused
2142 * by something else than PSK mismatch to avoid confusing reports.
2143 */
2144
2145 if (locally_generated) {
2146 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2147 return 0;
2148 }
2149
2150 return 1;
2151 }
2152
2153
2154 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2155 u16 reason_code,
2156 int locally_generated)
2157 {
2158 const u8 *bssid;
2159 int authenticating;
2160 u8 prev_pending_bssid[ETH_ALEN];
2161 struct wpa_bss *fast_reconnect = NULL;
2162 struct wpa_ssid *fast_reconnect_ssid = NULL;
2163 struct wpa_ssid *last_ssid;
2164
2165 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2166 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
2167
2168 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2169 /*
2170 * At least Host AP driver and a Prism3 card seemed to be
2171 * generating streams of disconnected events when configuring
2172 * IBSS for WPA-None. Ignore them for now.
2173 */
2174 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2175 "IBSS/WPA-None mode");
2176 return;
2177 }
2178
2179 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
2180 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2181 "pre-shared key may be incorrect");
2182 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2183 return; /* P2P group removed */
2184 wpas_auth_failed(wpa_s, "WRONG_KEY");
2185 }
2186 if (!wpa_s->disconnected &&
2187 (!wpa_s->auto_reconnect_disabled ||
2188 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
2189 wpas_wps_searching(wpa_s))) {
2190 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
2191 "reconnect (wps=%d/%d wpa_state=%d)",
2192 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2193 wpas_wps_searching(wpa_s),
2194 wpa_s->wpa_state);
2195 if (wpa_s->wpa_state == WPA_COMPLETED &&
2196 wpa_s->current_ssid &&
2197 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
2198 !locally_generated &&
2199 disconnect_reason_recoverable(reason_code)) {
2200 /*
2201 * It looks like the AP has dropped association with
2202 * us, but could allow us to get back in. Try to
2203 * reconnect to the same BSS without full scan to save
2204 * time for some common cases.
2205 */
2206 fast_reconnect = wpa_s->current_bss;
2207 fast_reconnect_ssid = wpa_s->current_ssid;
2208 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
2209 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2210 else
2211 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2212 "immediate scan");
2213 } else {
2214 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
2215 "try to re-connect");
2216 wpa_s->reassociate = 0;
2217 wpa_s->disconnected = 1;
2218 wpa_supplicant_cancel_sched_scan(wpa_s);
2219 }
2220 bssid = wpa_s->bssid;
2221 if (is_zero_ether_addr(bssid))
2222 bssid = wpa_s->pending_bssid;
2223 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2224 wpas_connection_failed(wpa_s, bssid);
2225 wpa_sm_notify_disassoc(wpa_s->wpa);
2226 if (locally_generated)
2227 wpa_s->disconnect_reason = -reason_code;
2228 else
2229 wpa_s->disconnect_reason = reason_code;
2230 wpas_notify_disconnect_reason(wpa_s);
2231 if (wpa_supplicant_dynamic_keys(wpa_s)) {
2232 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
2233 wpa_clear_keys(wpa_s, wpa_s->bssid);
2234 }
2235 last_ssid = wpa_s->current_ssid;
2236 wpa_supplicant_mark_disassoc(wpa_s);
2237
2238 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2239 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2240 wpa_s->current_ssid = last_ssid;
2241 }
2242
2243 if (fast_reconnect &&
2244 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2245 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2246 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2247 fast_reconnect->ssid_len) &&
2248 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid)) {
2249 #ifndef CONFIG_NO_SCAN_PROCESSING
2250 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2251 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2252 fast_reconnect_ssid) < 0) {
2253 /* Recover through full scan */
2254 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2255 }
2256 #endif /* CONFIG_NO_SCAN_PROCESSING */
2257 } else if (fast_reconnect) {
2258 /*
2259 * Could not reconnect to the same BSS due to network being
2260 * disabled. Use a new scan to match the alternative behavior
2261 * above, i.e., to continue automatic reconnection attempt in a
2262 * way that enforces disabled network rules.
2263 */
2264 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2265 }
2266 }
2267
2268
2269 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2270 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
2271 {
2272 struct wpa_supplicant *wpa_s = eloop_ctx;
2273
2274 if (!wpa_s->pending_mic_error_report)
2275 return;
2276
2277 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2278 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2279 wpa_s->pending_mic_error_report = 0;
2280 }
2281 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2282
2283
2284 static void
2285 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2286 union wpa_event_data *data)
2287 {
2288 int pairwise;
2289 struct os_reltime t;
2290
2291 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2292 pairwise = (data && data->michael_mic_failure.unicast);
2293 os_get_reltime(&t);
2294 if ((wpa_s->last_michael_mic_error.sec &&
2295 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
2296 wpa_s->pending_mic_error_report) {
2297 if (wpa_s->pending_mic_error_report) {
2298 /*
2299 * Send the pending MIC error report immediately since
2300 * we are going to start countermeasures and AP better
2301 * do the same.
2302 */
2303 wpa_sm_key_request(wpa_s->wpa, 1,
2304 wpa_s->pending_mic_error_pairwise);
2305 }
2306
2307 /* Send the new MIC error report immediately since we are going
2308 * to start countermeasures and AP better do the same.
2309 */
2310 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2311
2312 /* initialize countermeasures */
2313 wpa_s->countermeasures = 1;
2314
2315 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2316
2317 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2318
2319 /*
2320 * Need to wait for completion of request frame. We do not get
2321 * any callback for the message completion, so just wait a
2322 * short while and hope for the best. */
2323 os_sleep(0, 10000);
2324
2325 wpa_drv_set_countermeasures(wpa_s, 1);
2326 wpa_supplicant_deauthenticate(wpa_s,
2327 WLAN_REASON_MICHAEL_MIC_FAILURE);
2328 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2329 wpa_s, NULL);
2330 eloop_register_timeout(60, 0,
2331 wpa_supplicant_stop_countermeasures,
2332 wpa_s, NULL);
2333 /* TODO: mark the AP rejected for 60 second. STA is
2334 * allowed to associate with another AP.. */
2335 } else {
2336 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2337 if (wpa_s->mic_errors_seen) {
2338 /*
2339 * Reduce the effectiveness of Michael MIC error
2340 * reports as a means for attacking against TKIP if
2341 * more than one MIC failure is noticed with the same
2342 * PTK. We delay the transmission of the reports by a
2343 * random time between 0 and 60 seconds in order to
2344 * force the attacker wait 60 seconds before getting
2345 * the information on whether a frame resulted in a MIC
2346 * failure.
2347 */
2348 u8 rval[4];
2349 int sec;
2350
2351 if (os_get_random(rval, sizeof(rval)) < 0)
2352 sec = os_random() % 60;
2353 else
2354 sec = WPA_GET_BE32(rval) % 60;
2355 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2356 "report %d seconds", sec);
2357 wpa_s->pending_mic_error_report = 1;
2358 wpa_s->pending_mic_error_pairwise = pairwise;
2359 eloop_cancel_timeout(
2360 wpa_supplicant_delayed_mic_error_report,
2361 wpa_s, NULL);
2362 eloop_register_timeout(
2363 sec, os_random() % 1000000,
2364 wpa_supplicant_delayed_mic_error_report,
2365 wpa_s, NULL);
2366 } else {
2367 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2368 }
2369 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2370 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2371 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2372 }
2373 wpa_s->last_michael_mic_error = t;
2374 wpa_s->mic_errors_seen++;
2375 }
2376
2377
2378 #ifdef CONFIG_TERMINATE_ONLASTIF
2379 static int any_interfaces(struct wpa_supplicant *head)
2380 {
2381 struct wpa_supplicant *wpa_s;
2382
2383 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2384 if (!wpa_s->interface_removed)
2385 return 1;
2386 return 0;
2387 }
2388 #endif /* CONFIG_TERMINATE_ONLASTIF */
2389
2390
2391 static void
2392 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2393 union wpa_event_data *data)
2394 {
2395 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2396 return;
2397
2398 switch (data->interface_status.ievent) {
2399 case EVENT_INTERFACE_ADDED:
2400 if (!wpa_s->interface_removed)
2401 break;
2402 wpa_s->interface_removed = 0;
2403 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2404 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2405 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2406 "driver after interface was added");
2407 }
2408 break;
2409 case EVENT_INTERFACE_REMOVED:
2410 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2411 wpa_s->interface_removed = 1;
2412 wpa_supplicant_mark_disassoc(wpa_s);
2413 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2414 l2_packet_deinit(wpa_s->l2);
2415 wpa_s->l2 = NULL;
2416 #ifdef CONFIG_TERMINATE_ONLASTIF
2417 /* check if last interface */
2418 if (!any_interfaces(wpa_s->global->ifaces))
2419 eloop_terminate();
2420 #endif /* CONFIG_TERMINATE_ONLASTIF */
2421 break;
2422 }
2423 }
2424
2425
2426 #ifdef CONFIG_PEERKEY
2427 static void
2428 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2429 union wpa_event_data *data)
2430 {
2431 if (data == NULL)
2432 return;
2433 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2434 }
2435 #endif /* CONFIG_PEERKEY */
2436
2437
2438 #ifdef CONFIG_TDLS
2439 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2440 union wpa_event_data *data)
2441 {
2442 if (data == NULL)
2443 return;
2444 switch (data->tdls.oper) {
2445 case TDLS_REQUEST_SETUP:
2446 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2447 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2448 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2449 else
2450 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2451 break;
2452 case TDLS_REQUEST_TEARDOWN:
2453 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2454 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2455 data->tdls.reason_code);
2456 else
2457 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2458 data->tdls.peer);
2459 break;
2460 }
2461 }
2462 #endif /* CONFIG_TDLS */
2463
2464
2465 #ifdef CONFIG_WNM
2466 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2467 union wpa_event_data *data)
2468 {
2469 if (data == NULL)
2470 return;
2471 switch (data->wnm.oper) {
2472 case WNM_OPER_SLEEP:
2473 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2474 "(action=%d, intval=%d)",
2475 data->wnm.sleep_action, data->wnm.sleep_intval);
2476 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2477 data->wnm.sleep_intval, NULL);
2478 break;
2479 }
2480 }
2481 #endif /* CONFIG_WNM */
2482
2483
2484 #ifdef CONFIG_IEEE80211R
2485 static void
2486 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2487 union wpa_event_data *data)
2488 {
2489 if (data == NULL)
2490 return;
2491
2492 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2493 data->ft_ies.ies_len,
2494 data->ft_ies.ft_action,
2495 data->ft_ies.target_ap,
2496 data->ft_ies.ric_ies,
2497 data->ft_ies.ric_ies_len) < 0) {
2498 /* TODO: prevent MLME/driver from trying to associate? */
2499 }
2500 }
2501 #endif /* CONFIG_IEEE80211R */
2502
2503
2504 #ifdef CONFIG_IBSS_RSN
2505 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2506 union wpa_event_data *data)
2507 {
2508 struct wpa_ssid *ssid;
2509 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2510 return;
2511 if (data == NULL)
2512 return;
2513 ssid = wpa_s->current_ssid;
2514 if (ssid == NULL)
2515 return;
2516 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2517 return;
2518
2519 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2520 }
2521
2522
2523 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2524 union wpa_event_data *data)
2525 {
2526 struct wpa_ssid *ssid = wpa_s->current_ssid;
2527
2528 if (ssid == NULL)
2529 return;
2530
2531 /* check if the ssid is correctly configured as IBSS/RSN */
2532 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2533 return;
2534
2535 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2536 data->rx_mgmt.frame_len);
2537 }
2538 #endif /* CONFIG_IBSS_RSN */
2539
2540
2541 #ifdef CONFIG_IEEE80211R
2542 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2543 size_t len)
2544 {
2545 const u8 *sta_addr, *target_ap_addr;
2546 u16 status;
2547
2548 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2549 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2550 return; /* only SME case supported for now */
2551 if (len < 1 + 2 * ETH_ALEN + 2)
2552 return;
2553 if (data[0] != 2)
2554 return; /* Only FT Action Response is supported for now */
2555 sta_addr = data + 1;
2556 target_ap_addr = data + 1 + ETH_ALEN;
2557 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2558 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2559 MACSTR " TargetAP " MACSTR " status %u",
2560 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2561
2562 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2563 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2564 " in FT Action Response", MAC2STR(sta_addr));
2565 return;
2566 }
2567
2568 if (status) {
2569 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2570 "failure (status code %d)", status);
2571 /* TODO: report error to FT code(?) */
2572 return;
2573 }
2574
2575 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2576 len - (1 + 2 * ETH_ALEN + 2), 1,
2577 target_ap_addr, NULL, 0) < 0)
2578 return;
2579
2580 #ifdef CONFIG_SME
2581 {
2582 struct wpa_bss *bss;
2583 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2584 if (bss)
2585 wpa_s->sme.freq = bss->freq;
2586 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2587 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2588 WLAN_AUTH_FT);
2589 }
2590 #endif /* CONFIG_SME */
2591 }
2592 #endif /* CONFIG_IEEE80211R */
2593
2594
2595 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2596 struct unprot_deauth *e)
2597 {
2598 #ifdef CONFIG_IEEE80211W
2599 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2600 "dropped: " MACSTR " -> " MACSTR
2601 " (reason code %u)",
2602 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2603 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2604 #endif /* CONFIG_IEEE80211W */
2605 }
2606
2607
2608 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2609 struct unprot_disassoc *e)
2610 {
2611 #ifdef CONFIG_IEEE80211W
2612 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2613 "dropped: " MACSTR " -> " MACSTR
2614 " (reason code %u)",
2615 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2616 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2617 #endif /* CONFIG_IEEE80211W */
2618 }
2619
2620
2621 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
2622 u16 reason_code, int locally_generated,
2623 const u8 *ie, size_t ie_len, int deauth)
2624 {
2625 #ifdef CONFIG_AP
2626 if (wpa_s->ap_iface && addr) {
2627 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
2628 return;
2629 }
2630
2631 if (wpa_s->ap_iface) {
2632 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
2633 return;
2634 }
2635 #endif /* CONFIG_AP */
2636
2637 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
2638
2639 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
2640 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
2641 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
2642 eapol_sm_failed(wpa_s->eapol))) &&
2643 !wpa_s->eap_expected_failure))
2644 wpas_auth_failed(wpa_s, "AUTH_FAILED");
2645
2646 #ifdef CONFIG_P2P
2647 if (deauth && reason_code > 0) {
2648 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
2649 locally_generated) > 0) {
2650 /*
2651 * The interface was removed, so cannot continue
2652 * processing any additional operations after this.
2653 */
2654 return;
2655 }
2656 }
2657 #endif /* CONFIG_P2P */
2658
2659 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
2660 locally_generated);
2661 }
2662
2663
2664 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
2665 struct disassoc_info *info)
2666 {
2667 u16 reason_code = 0;
2668 int locally_generated = 0;
2669 const u8 *addr = NULL;
2670 const u8 *ie = NULL;
2671 size_t ie_len = 0;
2672
2673 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2674
2675 if (info) {
2676 addr = info->addr;
2677 ie = info->ie;
2678 ie_len = info->ie_len;
2679 reason_code = info->reason_code;
2680 locally_generated = info->locally_generated;
2681 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
2682 locally_generated ? " (locally generated)" : "");
2683 if (addr)
2684 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2685 MAC2STR(addr));
2686 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2687 ie, ie_len);
2688 }
2689
2690 #ifdef CONFIG_AP
2691 if (wpa_s->ap_iface && info && info->addr) {
2692 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
2693 return;
2694 }
2695
2696 if (wpa_s->ap_iface) {
2697 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
2698 return;
2699 }
2700 #endif /* CONFIG_AP */
2701
2702 #ifdef CONFIG_P2P
2703 if (info) {
2704 wpas_p2p_disassoc_notif(
2705 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
2706 locally_generated);
2707 }
2708 #endif /* CONFIG_P2P */
2709
2710 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2711 sme_event_disassoc(wpa_s, info);
2712
2713 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
2714 ie, ie_len, 0);
2715 }
2716
2717
2718 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
2719 struct deauth_info *info)
2720 {
2721 u16 reason_code = 0;
2722 int locally_generated = 0;
2723 const u8 *addr = NULL;
2724 const u8 *ie = NULL;
2725 size_t ie_len = 0;
2726
2727 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
2728
2729 if (info) {
2730 addr = info->addr;
2731 ie = info->ie;
2732 ie_len = info->ie_len;
2733 reason_code = info->reason_code;
2734 locally_generated = info->locally_generated;
2735 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2736 reason_code,
2737 locally_generated ? " (locally generated)" : "");
2738 if (addr) {
2739 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2740 MAC2STR(addr));
2741 }
2742 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
2743 ie, ie_len);
2744 }
2745
2746 wpa_reset_ft_completed(wpa_s->wpa);
2747
2748 wpas_event_disconnect(wpa_s, addr, reason_code,
2749 locally_generated, ie, ie_len, 1);
2750 }
2751
2752
2753 static const char * reg_init_str(enum reg_change_initiator init)
2754 {
2755 switch (init) {
2756 case REGDOM_SET_BY_CORE:
2757 return "CORE";
2758 case REGDOM_SET_BY_USER:
2759 return "USER";
2760 case REGDOM_SET_BY_DRIVER:
2761 return "DRIVER";
2762 case REGDOM_SET_BY_COUNTRY_IE:
2763 return "COUNTRY_IE";
2764 case REGDOM_BEACON_HINT:
2765 return "BEACON_HINT";
2766 }
2767 return "?";
2768 }
2769
2770
2771 static const char * reg_type_str(enum reg_type type)
2772 {
2773 switch (type) {
2774 case REGDOM_TYPE_UNKNOWN:
2775 return "UNKNOWN";
2776 case REGDOM_TYPE_COUNTRY:
2777 return "COUNTRY";
2778 case REGDOM_TYPE_WORLD:
2779 return "WORLD";
2780 case REGDOM_TYPE_CUSTOM_WORLD:
2781 return "CUSTOM_WORLD";
2782 case REGDOM_TYPE_INTERSECTION:
2783 return "INTERSECTION";
2784 }
2785 return "?";
2786 }
2787
2788
2789 static void wpa_supplicant_update_channel_list(
2790 struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
2791 {
2792 struct wpa_supplicant *ifs;
2793
2794 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
2795 reg_init_str(info->initiator), reg_type_str(info->type),
2796 info->alpha2[0] ? " alpha2=" : "",
2797 info->alpha2[0] ? info->alpha2 : "");
2798
2799 if (wpa_s->drv_priv == NULL)
2800 return; /* Ignore event during drv initialization */
2801
2802 free_hw_features(wpa_s);
2803 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(
2804 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags);
2805
2806 wpas_p2p_update_channel_list(wpa_s);
2807
2808 /*
2809 * Check other interfaces to see if they share the same radio. If
2810 * so, they get updated with this same hw mode info.
2811 */
2812 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
2813 radio_list) {
2814 if (ifs != wpa_s) {
2815 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
2816 ifs->ifname);
2817 free_hw_features(ifs);
2818 ifs->hw.modes = wpa_drv_get_hw_feature_data(
2819 ifs, &ifs->hw.num_modes, &ifs->hw.flags);
2820 }
2821 }
2822 }
2823
2824
2825 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
2826 const u8 *frame, size_t len, int freq,
2827 int rssi)
2828 {
2829 const struct ieee80211_mgmt *mgmt;
2830 const u8 *payload;
2831 size_t plen;
2832 u8 category;
2833
2834 if (len < IEEE80211_HDRLEN + 2)
2835 return;
2836
2837 mgmt = (const struct ieee80211_mgmt *) frame;
2838 payload = frame + IEEE80211_HDRLEN;
2839 category = *payload++;
2840 plen = len - IEEE80211_HDRLEN - 1;
2841
2842 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2843 " Category=%u DataLen=%d freq=%d MHz",
2844 MAC2STR(mgmt->sa), category, (int) plen, freq);
2845
2846 if (category == WLAN_ACTION_WMM) {
2847 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
2848 return;
2849 }
2850
2851 #ifdef CONFIG_IEEE80211R
2852 if (category == WLAN_ACTION_FT) {
2853 ft_rx_action(wpa_s, payload, plen);
2854 return;
2855 }
2856 #endif /* CONFIG_IEEE80211R */
2857
2858 #ifdef CONFIG_IEEE80211W
2859 #ifdef CONFIG_SME
2860 if (category == WLAN_ACTION_SA_QUERY) {
2861 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
2862 return;
2863 }
2864 #endif /* CONFIG_SME */
2865 #endif /* CONFIG_IEEE80211W */
2866
2867 #ifdef CONFIG_WNM
2868 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
2869 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
2870 return;
2871 }
2872 #endif /* CONFIG_WNM */
2873
2874 #ifdef CONFIG_GAS
2875 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
2876 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
2877 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
2878 mgmt->u.action.category,
2879 payload, plen, freq) == 0)
2880 return;
2881 #endif /* CONFIG_GAS */
2882
2883 #ifdef CONFIG_TDLS
2884 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
2885 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
2886 wpa_dbg(wpa_s, MSG_DEBUG,
2887 "TDLS: Received Discovery Response from " MACSTR,
2888 MAC2STR(mgmt->sa));
2889 return;
2890 }
2891 #endif /* CONFIG_TDLS */
2892
2893 #ifdef CONFIG_INTERWORKING
2894 if (category == WLAN_ACTION_QOS && plen >= 1 &&
2895 payload[0] == QOS_QOS_MAP_CONFIG) {
2896 const u8 *pos = payload + 1;
2897 size_t qlen = plen - 1;
2898 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
2899 MACSTR, MAC2STR(mgmt->sa));
2900 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
2901 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
2902 pos[1] <= qlen - 2 && pos[1] >= 16)
2903 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
2904 return;
2905 }
2906 #endif /* CONFIG_INTERWORKING */
2907
2908 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
2909 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
2910 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
2911 return;
2912 }
2913
2914 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
2915 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
2916 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
2917 payload + 1, plen - 1,
2918 rssi);
2919 return;
2920 }
2921
2922 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
2923 category, payload, plen, freq);
2924 if (wpa_s->ifmsh)
2925 mesh_mpm_action_rx(wpa_s, mgmt, len);
2926 }
2927
2928
2929 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
2930 union wpa_event_data *event)
2931 {
2932 #ifdef CONFIG_P2P
2933 struct wpa_supplicant *ifs;
2934 #endif /* CONFIG_P2P */
2935 struct wpa_freq_range_list *list;
2936 char *str = NULL;
2937
2938 list = &event->freq_range;
2939
2940 if (list->num)
2941 str = freq_range_list_str(list);
2942 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
2943 str ? str : "");
2944
2945 #ifdef CONFIG_P2P
2946 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
2947 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
2948 __func__);
2949 } else {
2950 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
2951 wpas_p2p_update_channel_list(wpa_s);
2952 }
2953
2954 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
2955 int freq;
2956 if (!ifs->current_ssid ||
2957 !ifs->current_ssid->p2p_group ||
2958 (ifs->current_ssid->mode != WPAS_MODE_P2P_GO &&
2959 ifs->current_ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION))
2960 continue;
2961
2962 freq = ifs->current_ssid->frequency;
2963 if (!freq_range_list_includes(list, freq)) {
2964 wpa_dbg(ifs, MSG_DEBUG, "P2P GO operating frequency %d MHz in safe range",
2965 freq);
2966 continue;
2967 }
2968
2969 wpa_dbg(ifs, MSG_DEBUG, "P2P GO operating in unsafe frequency %d MHz",
2970 freq);
2971 /* TODO: Consider using CSA or removing the group within
2972 * wpa_supplicant */
2973 wpa_msg(ifs, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
2974 }
2975 #endif /* CONFIG_P2P */
2976
2977 os_free(str);
2978 }
2979
2980
2981 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
2982 union wpa_event_data *data)
2983 {
2984 wpa_dbg(wpa_s, MSG_DEBUG,
2985 "Connection authorized by device, previous state %d",
2986 wpa_s->wpa_state);
2987 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
2988 wpa_supplicant_cancel_auth_timeout(wpa_s);
2989 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2990 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2991 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2992 }
2993 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
2994 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
2995 data->assoc_info.ptk_kek);
2996 }
2997
2998
2999 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
3000 union wpa_event_data *data)
3001 {
3002 struct wpa_supplicant *wpa_s = ctx;
3003
3004 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
3005 event != EVENT_INTERFACE_ENABLED &&
3006 event != EVENT_INTERFACE_STATUS &&
3007 event != EVENT_SCHED_SCAN_STOPPED) {
3008 wpa_dbg(wpa_s, MSG_DEBUG,
3009 "Ignore event %s (%d) while interface is disabled",
3010 event_to_string(event), event);
3011 return;
3012 }
3013
3014 #ifndef CONFIG_NO_STDOUT_DEBUG
3015 {
3016 int level = MSG_DEBUG;
3017
3018 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
3019 const struct ieee80211_hdr *hdr;
3020 u16 fc;
3021 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
3022 fc = le_to_host16(hdr->frame_control);
3023 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3024 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
3025 level = MSG_EXCESSIVE;
3026 }
3027
3028 wpa_dbg(wpa_s, level, "Event %s (%d) received",
3029 event_to_string(event), event);
3030 }
3031 #endif /* CONFIG_NO_STDOUT_DEBUG */
3032
3033 switch (event) {
3034 case EVENT_AUTH:
3035 sme_event_auth(wpa_s, data);
3036 break;
3037 case EVENT_ASSOC:
3038 wpa_supplicant_event_assoc(wpa_s, data);
3039 if (data && data->assoc_info.authorized)
3040 wpa_supplicant_event_assoc_auth(wpa_s, data);
3041 break;
3042 case EVENT_DISASSOC:
3043 wpas_event_disassoc(wpa_s,
3044 data ? &data->disassoc_info : NULL);
3045 break;
3046 case EVENT_DEAUTH:
3047 wpas_event_deauth(wpa_s,
3048 data ? &data->deauth_info : NULL);
3049 break;
3050 case EVENT_MICHAEL_MIC_FAILURE:
3051 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3052 break;
3053 #ifndef CONFIG_NO_SCAN_PROCESSING
3054 case EVENT_SCAN_STARTED:
3055 os_get_reltime(&wpa_s->scan_start_time);
3056 if (wpa_s->own_scan_requested) {
3057 struct os_reltime diff;
3058
3059 os_reltime_sub(&wpa_s->scan_start_time,
3060 &wpa_s->scan_trigger_time, &diff);
3061 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3062 diff.sec, diff.usec);
3063 wpa_s->own_scan_requested = 0;
3064 wpa_s->own_scan_running = 1;
3065 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3066 wpa_s->manual_scan_use_id) {
3067 wpa_msg_ctrl(wpa_s, MSG_INFO,
3068 WPA_EVENT_SCAN_STARTED "id=%u",
3069 wpa_s->manual_scan_id);
3070 } else {
3071 wpa_msg_ctrl(wpa_s, MSG_INFO,
3072 WPA_EVENT_SCAN_STARTED);
3073 }
3074 } else {
3075 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3076 wpa_s->external_scan_running = 1;
3077 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
3078 }
3079 break;
3080 case EVENT_SCAN_RESULTS:
3081 if (os_reltime_initialized(&wpa_s->scan_start_time)) {
3082 struct os_reltime now, diff;
3083 os_get_reltime(&now);
3084 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3085 wpa_s->scan_start_time.sec = 0;
3086 wpa_s->scan_start_time.usec = 0;
3087 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3088 diff.sec, diff.usec);
3089 }
3090 wpa_supplicant_event_scan_results(wpa_s, data);
3091 wpa_s->own_scan_running = 0;
3092 wpa_s->external_scan_running = 0;
3093 radio_work_check_next(wpa_s);
3094 break;
3095 #endif /* CONFIG_NO_SCAN_PROCESSING */
3096 case EVENT_ASSOCINFO:
3097 wpa_supplicant_event_associnfo(wpa_s, data);
3098 break;
3099 case EVENT_INTERFACE_STATUS:
3100 wpa_supplicant_event_interface_status(wpa_s, data);
3101 break;
3102 case EVENT_PMKID_CANDIDATE:
3103 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3104 break;
3105 #ifdef CONFIG_PEERKEY
3106 case EVENT_STKSTART:
3107 wpa_supplicant_event_stkstart(wpa_s, data);
3108 break;
3109 #endif /* CONFIG_PEERKEY */
3110 #ifdef CONFIG_TDLS
3111 case EVENT_TDLS:
3112 wpa_supplicant_event_tdls(wpa_s, data);
3113 break;
3114 #endif /* CONFIG_TDLS */
3115 #ifdef CONFIG_WNM
3116 case EVENT_WNM:
3117 wpa_supplicant_event_wnm(wpa_s, data);
3118 break;
3119 #endif /* CONFIG_WNM */
3120 #ifdef CONFIG_IEEE80211R
3121 case EVENT_FT_RESPONSE:
3122 wpa_supplicant_event_ft_response(wpa_s, data);
3123 break;
3124 #endif /* CONFIG_IEEE80211R */
3125 #ifdef CONFIG_IBSS_RSN
3126 case EVENT_IBSS_RSN_START:
3127 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3128 break;
3129 #endif /* CONFIG_IBSS_RSN */
3130 case EVENT_ASSOC_REJECT:
3131 if (data->assoc_reject.bssid)
3132 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3133 "bssid=" MACSTR " status_code=%u",
3134 MAC2STR(data->assoc_reject.bssid),
3135 data->assoc_reject.status_code);
3136 else
3137 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3138 "status_code=%u",
3139 data->assoc_reject.status_code);
3140 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3141 sme_event_assoc_reject(wpa_s, data);
3142 else {
3143 const u8 *bssid = data->assoc_reject.bssid;
3144 if (bssid == NULL || is_zero_ether_addr(bssid))
3145 bssid = wpa_s->pending_bssid;
3146 wpas_connection_failed(wpa_s, bssid);
3147 wpa_supplicant_mark_disassoc(wpa_s);
3148 }
3149 break;
3150 case EVENT_AUTH_TIMED_OUT:
3151 /* It is possible to get this event from earlier connection */
3152 if (wpa_s->current_ssid &&
3153 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3154 wpa_dbg(wpa_s, MSG_DEBUG,
3155 "Ignore AUTH_TIMED_OUT in mesh configuration");
3156 break;
3157 }
3158 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3159 sme_event_auth_timed_out(wpa_s, data);
3160 break;
3161 case EVENT_ASSOC_TIMED_OUT:
3162 /* It is possible to get this event from earlier connection */
3163 if (wpa_s->current_ssid &&
3164 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3165 wpa_dbg(wpa_s, MSG_DEBUG,
3166 "Ignore ASSOC_TIMED_OUT in mesh configuration");
3167 break;
3168 }
3169 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3170 sme_event_assoc_timed_out(wpa_s, data);
3171 break;
3172 case EVENT_TX_STATUS:
3173 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3174 " type=%d stype=%d",
3175 MAC2STR(data->tx_status.dst),
3176 data->tx_status.type, data->tx_status.stype);
3177 #ifdef CONFIG_AP
3178 if (wpa_s->ap_iface == NULL) {
3179 #ifdef CONFIG_OFFCHANNEL
3180 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3181 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
3182 offchannel_send_action_tx_status(
3183 wpa_s, data->tx_status.dst,
3184 data->tx_status.data,
3185 data->tx_status.data_len,
3186 data->tx_status.ack ?
3187 OFFCHANNEL_SEND_ACTION_SUCCESS :
3188 OFFCHANNEL_SEND_ACTION_NO_ACK);
3189 #endif /* CONFIG_OFFCHANNEL */
3190 break;
3191 }
3192 #endif /* CONFIG_AP */
3193 #ifdef CONFIG_OFFCHANNEL
3194 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3195 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
3196 /*
3197 * Catch TX status events for Action frames we sent via group
3198 * interface in GO mode.
3199 */
3200 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3201 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3202 os_memcmp(wpa_s->parent->pending_action_dst,
3203 data->tx_status.dst, ETH_ALEN) == 0) {
3204 offchannel_send_action_tx_status(
3205 wpa_s->parent, data->tx_status.dst,
3206 data->tx_status.data,
3207 data->tx_status.data_len,
3208 data->tx_status.ack ?
3209 OFFCHANNEL_SEND_ACTION_SUCCESS :
3210 OFFCHANNEL_SEND_ACTION_NO_ACK);
3211 break;
3212 }
3213 #endif /* CONFIG_OFFCHANNEL */
3214 #ifdef CONFIG_AP
3215 switch (data->tx_status.type) {
3216 case WLAN_FC_TYPE_MGMT:
3217 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3218 data->tx_status.data_len,
3219 data->tx_status.stype,
3220 data->tx_status.ack);
3221 break;
3222 case WLAN_FC_TYPE_DATA:
3223 ap_tx_status(wpa_s, data->tx_status.dst,
3224 data->tx_status.data,
3225 data->tx_status.data_len,
3226 data->tx_status.ack);
3227 break;
3228 }
3229 #endif /* CONFIG_AP */
3230 break;
3231 #ifdef CONFIG_AP
3232 case EVENT_EAPOL_TX_STATUS:
3233 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3234 data->eapol_tx_status.data,
3235 data->eapol_tx_status.data_len,
3236 data->eapol_tx_status.ack);
3237 break;
3238 case EVENT_DRIVER_CLIENT_POLL_OK:
3239 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3240 break;
3241 case EVENT_RX_FROM_UNKNOWN:
3242 if (wpa_s->ap_iface == NULL)
3243 break;
3244 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3245 data->rx_from_unknown.wds);
3246 break;
3247 case EVENT_CH_SWITCH:
3248 if (!data)
3249 break;
3250 if (!wpa_s->ap_iface) {
3251 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch "
3252 "event in non-AP mode");
3253 break;
3254 }
3255
3256 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3257 data->ch_switch.ht_enabled,
3258 data->ch_switch.ch_offset,
3259 data->ch_switch.ch_width,
3260 data->ch_switch.cf1,
3261 data->ch_switch.cf2);
3262 break;
3263 #endif /* CONFIG_AP */
3264 case EVENT_RX_MGMT: {
3265 u16 fc, stype;
3266 const struct ieee80211_mgmt *mgmt;
3267
3268 #ifdef CONFIG_TESTING_OPTIONS
3269 if (wpa_s->ext_mgmt_frame_handling) {
3270 struct rx_mgmt *rx = &data->rx_mgmt;
3271 size_t hex_len = 2 * rx->frame_len + 1;
3272 char *hex = os_malloc(hex_len);
3273 if (hex) {
3274 wpa_snprintf_hex(hex, hex_len,
3275 rx->frame, rx->frame_len);
3276 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3277 rx->freq, rx->datarate, rx->ssi_signal,
3278 hex);
3279 os_free(hex);
3280 }
3281 break;
3282 }
3283 #endif /* CONFIG_TESTING_OPTIONS */
3284
3285 mgmt = (const struct ieee80211_mgmt *)
3286 data->rx_mgmt.frame;
3287 fc = le_to_host16(mgmt->frame_control);
3288 stype = WLAN_FC_GET_STYPE(fc);
3289
3290 #ifdef CONFIG_AP
3291 if (wpa_s->ap_iface == NULL) {
3292 #endif /* CONFIG_AP */
3293 #ifdef CONFIG_P2P
3294 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3295 data->rx_mgmt.frame_len > 24) {
3296 const u8 *src = mgmt->sa;
3297 const u8 *ie = mgmt->u.probe_req.variable;
3298 size_t ie_len = data->rx_mgmt.frame_len -
3299 (mgmt->u.probe_req.variable -
3300 data->rx_mgmt.frame);
3301 wpas_p2p_probe_req_rx(
3302 wpa_s, src, mgmt->da,
3303 mgmt->bssid, ie, ie_len,
3304 data->rx_mgmt.ssi_signal);
3305 break;
3306 }
3307 #endif /* CONFIG_P2P */
3308 #ifdef CONFIG_IBSS_RSN
3309 if (wpa_s->current_ssid &&
3310 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3311 stype == WLAN_FC_STYPE_AUTH &&
3312 data->rx_mgmt.frame_len >= 30) {
3313 wpa_supplicant_event_ibss_auth(wpa_s, data);
3314 break;
3315 }
3316 #endif /* CONFIG_IBSS_RSN */
3317
3318 if (stype == WLAN_FC_STYPE_ACTION) {
3319 wpas_event_rx_mgmt_action(
3320 wpa_s, data->rx_mgmt.frame,
3321 data->rx_mgmt.frame_len,
3322 data->rx_mgmt.freq,
3323 data->rx_mgmt.ssi_signal);
3324 break;
3325 }
3326
3327 if (wpa_s->ifmsh) {
3328 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3329 break;
3330 }
3331
3332 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3333 "management frame in non-AP mode");
3334 break;
3335 #ifdef CONFIG_AP
3336 }
3337
3338 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3339 data->rx_mgmt.frame_len > 24) {
3340 const u8 *ie = mgmt->u.probe_req.variable;
3341 size_t ie_len = data->rx_mgmt.frame_len -
3342 (mgmt->u.probe_req.variable -
3343 data->rx_mgmt.frame);
3344
3345 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3346 mgmt->bssid, ie, ie_len,
3347 data->rx_mgmt.ssi_signal);
3348 }
3349
3350 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
3351 #endif /* CONFIG_AP */
3352 break;
3353 }
3354 case EVENT_RX_PROBE_REQ:
3355 if (data->rx_probe_req.sa == NULL ||
3356 data->rx_probe_req.ie == NULL)
3357 break;
3358 #ifdef CONFIG_AP
3359 if (wpa_s->ap_iface) {
3360 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3361 data->rx_probe_req.sa,
3362 data->rx_probe_req.da,
3363 data->rx_probe_req.bssid,
3364 data->rx_probe_req.ie,
3365 data->rx_probe_req.ie_len,
3366 data->rx_probe_req.ssi_signal);
3367 break;
3368 }
3369 #endif /* CONFIG_AP */
3370 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
3371 data->rx_probe_req.da,
3372 data->rx_probe_req.bssid,
3373 data->rx_probe_req.ie,
3374 data->rx_probe_req.ie_len,
3375 data->rx_probe_req.ssi_signal);
3376 break;
3377 case EVENT_REMAIN_ON_CHANNEL:
3378 #ifdef CONFIG_OFFCHANNEL
3379 offchannel_remain_on_channel_cb(
3380 wpa_s, data->remain_on_channel.freq,
3381 data->remain_on_channel.duration);
3382 #endif /* CONFIG_OFFCHANNEL */
3383 wpas_p2p_remain_on_channel_cb(
3384 wpa_s, data->remain_on_channel.freq,
3385 data->remain_on_channel.duration);
3386 break;
3387 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
3388 #ifdef CONFIG_OFFCHANNEL
3389 offchannel_cancel_remain_on_channel_cb(
3390 wpa_s, data->remain_on_channel.freq);
3391 #endif /* CONFIG_OFFCHANNEL */
3392 wpas_p2p_cancel_remain_on_channel_cb(
3393 wpa_s, data->remain_on_channel.freq);
3394 break;
3395 case EVENT_EAPOL_RX:
3396 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3397 data->eapol_rx.data,
3398 data->eapol_rx.data_len);
3399 break;
3400 case EVENT_SIGNAL_CHANGE:
3401 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3402 "above=%d signal=%d noise=%d txrate=%d",
3403 data->signal_change.above_threshold,
3404 data->signal_change.current_signal,
3405 data->signal_change.current_noise,
3406 data->signal_change.current_txrate);
3407 bgscan_notify_signal_change(
3408 wpa_s, data->signal_change.above_threshold,
3409 data->signal_change.current_signal,
3410 data->signal_change.current_noise,
3411 data->signal_change.current_txrate);
3412 break;
3413 case EVENT_INTERFACE_ENABLED:
3414 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
3415 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3416 wpa_supplicant_update_mac_addr(wpa_s);
3417 if (wpa_s->p2p_mgmt) {
3418 wpa_supplicant_set_state(wpa_s,
3419 WPA_DISCONNECTED);
3420 break;
3421 }
3422
3423 #ifdef CONFIG_AP
3424 if (!wpa_s->ap_iface) {
3425 wpa_supplicant_set_state(wpa_s,
3426 WPA_DISCONNECTED);
3427 wpa_s->scan_req = NORMAL_SCAN_REQ;
3428 wpa_supplicant_req_scan(wpa_s, 0, 0);
3429 } else
3430 wpa_supplicant_set_state(wpa_s,
3431 WPA_COMPLETED);
3432 #else /* CONFIG_AP */
3433 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3434 wpa_supplicant_req_scan(wpa_s, 0, 0);
3435 #endif /* CONFIG_AP */
3436 }
3437 break;
3438 case EVENT_INTERFACE_DISABLED:
3439 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
3440 #ifdef CONFIG_P2P
3441 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3442 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3443 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
3444 /*
3445 * Mark interface disabled if this happens to end up not
3446 * being removed as a separate P2P group interface.
3447 */
3448 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3449 /*
3450 * The interface was externally disabled. Remove
3451 * it assuming an external entity will start a
3452 * new session if needed.
3453 */
3454 if (wpa_s->current_ssid &&
3455 wpa_s->current_ssid->p2p_group)
3456 wpas_p2p_interface_unavailable(wpa_s);
3457 else
3458 wpas_p2p_disconnect(wpa_s);
3459 /*
3460 * wpa_s instance may have been freed, so must not use
3461 * it here anymore.
3462 */
3463 break;
3464 }
3465 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3466 p2p_in_progress(wpa_s->global->p2p) > 1) {
3467 /* This radio work will be cancelled, so clear P2P
3468 * state as well.
3469 */
3470 p2p_stop_find(wpa_s->global->p2p);
3471 }
3472 #endif /* CONFIG_P2P */
3473
3474 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3475 /*
3476 * Indicate disconnection to keep ctrl_iface events
3477 * consistent.
3478 */
3479 wpa_supplicant_event_disassoc(
3480 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3481 }
3482 wpa_supplicant_mark_disassoc(wpa_s);
3483 radio_remove_works(wpa_s, NULL, 0);
3484
3485 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3486 break;
3487 case EVENT_CHANNEL_LIST_CHANGED:
3488 wpa_supplicant_update_channel_list(
3489 wpa_s, &data->channel_list_changed);
3490 break;
3491 case EVENT_INTERFACE_UNAVAILABLE:
3492 wpas_p2p_interface_unavailable(wpa_s);
3493 break;
3494 case EVENT_BEST_CHANNEL:
3495 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3496 "(%d %d %d)",
3497 data->best_chan.freq_24, data->best_chan.freq_5,
3498 data->best_chan.freq_overall);
3499 wpa_s->best_24_freq = data->best_chan.freq_24;
3500 wpa_s->best_5_freq = data->best_chan.freq_5;
3501 wpa_s->best_overall_freq = data->best_chan.freq_overall;
3502 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3503 data->best_chan.freq_5,
3504 data->best_chan.freq_overall);
3505 break;
3506 case EVENT_UNPROT_DEAUTH:
3507 wpa_supplicant_event_unprot_deauth(wpa_s,
3508 &data->unprot_deauth);
3509 break;
3510 case EVENT_UNPROT_DISASSOC:
3511 wpa_supplicant_event_unprot_disassoc(wpa_s,
3512 &data->unprot_disassoc);
3513 break;
3514 case EVENT_STATION_LOW_ACK:
3515 #ifdef CONFIG_AP
3516 if (wpa_s->ap_iface && data)
3517 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3518 data->low_ack.addr);
3519 #endif /* CONFIG_AP */
3520 #ifdef CONFIG_TDLS
3521 if (data)
3522 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
3523 data->low_ack.addr);
3524 #endif /* CONFIG_TDLS */
3525 break;
3526 case EVENT_IBSS_PEER_LOST:
3527 #ifdef CONFIG_IBSS_RSN
3528 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
3529 #endif /* CONFIG_IBSS_RSN */
3530 break;
3531 case EVENT_DRIVER_GTK_REKEY:
3532 if (os_memcmp(data->driver_gtk_rekey.bssid,
3533 wpa_s->bssid, ETH_ALEN))
3534 break;
3535 if (!wpa_s->wpa)
3536 break;
3537 wpa_sm_update_replay_ctr(wpa_s->wpa,
3538 data->driver_gtk_rekey.replay_ctr);
3539 break;
3540 case EVENT_SCHED_SCAN_STOPPED:
3541 wpa_s->pno = 0;
3542 wpa_s->sched_scanning = 0;
3543 wpa_supplicant_notify_scanning(wpa_s, 0);
3544
3545 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
3546 break;
3547
3548 /*
3549 * Start a new sched scan to continue searching for more SSIDs
3550 * either if timed out or PNO schedule scan is pending.
3551 */
3552 if (wpa_s->sched_scan_timed_out) {
3553 wpa_supplicant_req_sched_scan(wpa_s);
3554 } else if (wpa_s->pno_sched_pending) {
3555 wpa_s->pno_sched_pending = 0;
3556 wpas_start_pno(wpa_s);
3557 }
3558
3559 break;
3560 case EVENT_WPS_BUTTON_PUSHED:
3561 #ifdef CONFIG_WPS
3562 wpas_wps_start_pbc(wpa_s, NULL, 0);
3563 #endif /* CONFIG_WPS */
3564 break;
3565 case EVENT_AVOID_FREQUENCIES:
3566 wpa_supplicant_notify_avoid_freq(wpa_s, data);
3567 break;
3568 case EVENT_CONNECT_FAILED_REASON:
3569 #ifdef CONFIG_AP
3570 if (!wpa_s->ap_iface || !data)
3571 break;
3572 hostapd_event_connect_failed_reason(
3573 wpa_s->ap_iface->bss[0],
3574 data->connect_failed_reason.addr,
3575 data->connect_failed_reason.code);
3576 #endif /* CONFIG_AP */
3577 break;
3578 case EVENT_NEW_PEER_CANDIDATE:
3579 #ifdef CONFIG_MESH
3580 if (!wpa_s->ifmsh || !data)
3581 break;
3582 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
3583 data->mesh_peer.ies,
3584 data->mesh_peer.ie_len);
3585 #endif /* CONFIG_MESH */
3586 break;
3587 default:
3588 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
3589 break;
3590 }
3591 }
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