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