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Use BSS entries instead of scan results for BSS selection
[thirdparty/hostap.git] / wpa_supplicant / events.c
CommitLineData
6fc6879b
JM		 1/*
2 * WPA Supplicant - Driver event processing
3d9975d5 3 * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
6fc6879b 4 *
0f3d578e
JM		 5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
6fc6879b
JM		 7 */
8
9#include "includes.h"
10
11#include "common.h"
12#include "eapol_supp/eapol_supp_sm.h"
3acb5005 13#include "rsn_supp/wpa.h"
6fc6879b 14#include "eloop.h"
6fc6879b
JM		 15#include "config.h"
16#include "l2_packet/l2_packet.h"
17#include "wpa_supplicant_i.h"
2d5b792d 18#include "driver_i.h"
6fc6879b 19#include "pcsc_funcs.h"
3acb5005
JM		 20#include "rsn_supp/preauth.h"
21#include "rsn_supp/pmksa_cache.h"
90973fb2 22#include "common/wpa_ctrl.h"
6fc6879b 23#include "eap_peer/eap.h"
1d041bec 24#include "ap/hostapd.h"
93b7ddd0 25#include "p2p/p2p.h"
75cad1a0 26#include "wnm_sta.h"
8bac466b 27#include "notify.h"
90973fb2 28#include "common/ieee802_11_defs.h"
54f489be 29#include "common/ieee802_11_common.h"
bbb921da 30#include "crypto/random.h"
6fc6879b
JM		 31#include "blacklist.h"
32#include "wpas_glue.h"
351f09a2 33#include "wps_supplicant.h"
11ef8d35 34#include "ibss_rsn.h"
c2a04078 35#include "sme.h"
04ea7b79 36#include "gas_query.h"
9bae1be0 37#include "p2p_supplicant.h"
60b94c98 38#include "bgscan.h"
7c865c68 39#include "autoscan.h"
f8b1f695 40#include "ap.h"
6fa81a3b 41#include "bss.h"
9ba9fa07 42#include "scan.h"
24f6497c 43#include "offchannel.h"
4d5bda5f 44#include "interworking.h"
6fc6879b
JM		 45
46
00e5e3d5
JM		 47static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
48 struct wpa_ssid *ssid)
49{
50 struct os_time now;
51
52 if (ssid == NULL || ssid->disabled_until.sec == 0)
53 return 0;
54
55 os_get_time(&now);
56 if (ssid->disabled_until.sec > now.sec)
57 return ssid->disabled_until.sec - now.sec;
58
59 wpas_clear_temp_disabled(wpa_s, ssid, 0);
60
61 return 0;
62}
63
64
6fc6879b
JM		 65static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
66{
8bac466b 67 struct wpa_ssid *ssid, *old_ssid;
00e5e3d5 68 int res;
6fc6879b
JM		 69
70 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
71 return 0;
72
f049052b
BG		 73 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
74 "information");
6fc6879b
JM		 75 ssid = wpa_supplicant_get_ssid(wpa_s);
76 if (ssid == NULL) {
f049052b
BG		 77 wpa_msg(wpa_s, MSG_INFO,
78 "No network configuration found for the current AP");
6fc6879b
JM		 79 return -1;
80 }
81
349493bd 82 if (wpas_network_disabled(wpa_s, ssid)) {
f049052b 83 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
6fc6879b
JM		 84 return -1;
85 }
86
00e5e3d5
JM		 87 res = wpas_temp_disabled(wpa_s, ssid);
88 if (res > 0) {
89 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
90 "disabled for %d second(s)", res);
91 return -1;
92 }
93
f049052b
BG		 94 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
95 "current AP");
0bf927a0 96 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
6fc6879b
JM		 97 u8 wpa_ie[80];
98 size_t wpa_ie_len = sizeof(wpa_ie);
99 wpa_supplicant_set_suites(wpa_s, NULL, ssid,
100 wpa_ie, &wpa_ie_len);
101 } else {
102 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
103 }
104
105 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
106 eapol_sm_invalidate_cached_session(wpa_s->eapol);
8bac466b 107 old_ssid = wpa_s->current_ssid;
6fc6879b
JM		 108 wpa_s->current_ssid = ssid;
109 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
110 wpa_supplicant_initiate_eapol(wpa_s);
8bac466b
JM		 111 if (old_ssid != wpa_s->current_ssid)
112 wpas_notify_network_changed(wpa_s);
6fc6879b
JM		 113
114 return 0;
115}
116
117
01a17491 118void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
6fc6879b
JM		 119{
120 struct wpa_supplicant *wpa_s = eloop_ctx;
121
122 if (wpa_s->countermeasures) {
123 wpa_s->countermeasures = 0;
124 wpa_drv_set_countermeasures(wpa_s, 0);
125 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
126 wpa_supplicant_req_scan(wpa_s, 0, 0);
127 }
128}
129
130
131void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
132{
8bac466b
JM		 133 int bssid_changed;
134
b6668734
JM		 135 wnm_bss_keep_alive_deinit(wpa_s);
136
78177a00
JM		 137#ifdef CONFIG_IBSS_RSN
138 ibss_rsn_deinit(wpa_s->ibss_rsn);
139 wpa_s->ibss_rsn = NULL;
140#endif /* CONFIG_IBSS_RSN */
141
ca62e114
JM		 142#ifdef CONFIG_AP
143 wpa_supplicant_ap_deinit(wpa_s);
144#endif /* CONFIG_AP */
145
8401a6b0
JM		 146 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
147 return;
148
6fc6879b 149 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
8bac466b 150 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
6fc6879b
JM		 151 os_memset(wpa_s->bssid, 0, ETH_ALEN);
152 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
a0227929
JM		 153#ifdef CONFIG_SME
154 wpa_s->sme.prev_bssid_set = 0;
155#endif /* CONFIG_SME */
b1aebbc4
JM		 156#ifdef CONFIG_P2P
157 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
158#endif /* CONFIG_P2P */
be8be671 159 wpa_s->current_bss = NULL;
3c85f144 160 wpa_s->assoc_freq = 0;
8fd0f0f3
HW		 161#ifdef CONFIG_IEEE80211R
162#ifdef CONFIG_SME
163 if (wpa_s->sme.ft_ies)
164 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
165#endif /* CONFIG_SME */
166#endif /* CONFIG_IEEE80211R */
167
8bac466b
JM		 168 if (bssid_changed)
169 wpas_notify_bssid_changed(wpa_s);
170
6fc6879b
JM		 171 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
172 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
56586197 173 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
6fc6879b
JM		 174 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
175 wpa_s->ap_ies_from_associnfo = 0;
0d30cc24
JM		 176 wpa_s->current_ssid = NULL;
177 wpa_s->key_mgmt = 0;
6fc6879b
JM		 178}
179
180
181static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
182{
183 struct wpa_ie_data ie;
184 int pmksa_set = -1;
185 size_t i;
186
187 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
188 ie.pmkid == NULL)
189 return;
190
191 for (i = 0; i < ie.num_pmkid; i++) {
192 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
193 ie.pmkid + i * PMKID_LEN,
194 NULL, NULL, 0);
195 if (pmksa_set == 0) {
196 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
197 break;
198 }
199 }
200
f049052b
BG		 201 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
202 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
6fc6879b
JM		 203}
204
205
206static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
207 union wpa_event_data *data)
208{
209 if (data == NULL) {
f049052b
BG		 210 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
211 "event");
6fc6879b
JM		 212 return;
213 }
f049052b
BG		 214 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
215 " index=%d preauth=%d",
216 MAC2STR(data->pmkid_candidate.bssid),
217 data->pmkid_candidate.index,
218 data->pmkid_candidate.preauth);
6fc6879b
JM		 219
220 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
221 data->pmkid_candidate.index,
222 data->pmkid_candidate.preauth);
223}
224
225
226static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
227{
228 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
229 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
230 return 0;
231
232#ifdef IEEE8021X_EAPOL
233 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
234 wpa_s->current_ssid &&
235 !(wpa_s->current_ssid->eapol_flags &
236 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
237 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
238 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
239 * plaintext or static WEP keys). */
240 return 0;
241 }
242#endif /* IEEE8021X_EAPOL */
243
244 return 1;
245}
246
247
248/**
249 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
250 * @wpa_s: pointer to wpa_supplicant data
251 * @ssid: Configuration data for the network
252 * Returns: 0 on success, -1 on failure
253 *
254 * This function is called when starting authentication with a network that is
255 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
256 */
257int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
258 struct wpa_ssid *ssid)
259{
260#ifdef IEEE8021X_EAPOL
b832d34c 261#ifdef PCSC_FUNCS
6fc6879b
JM		 262 int aka = 0, sim = 0, type;
263
264 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
265 return 0;
266
267 if (ssid->eap.eap_methods == NULL) {
268 sim = 1;
269 aka = 1;
270 } else {
271 struct eap_method_type *eap = ssid->eap.eap_methods;
272 while (eap->vendor != EAP_VENDOR_IETF ||
273 eap->method != EAP_TYPE_NONE) {
274 if (eap->vendor == EAP_VENDOR_IETF) {
275 if (eap->method == EAP_TYPE_SIM)
276 sim = 1;
3d332fe7
JM		 277 else if (eap->method == EAP_TYPE_AKA ||
278 eap->method == EAP_TYPE_AKA_PRIME)
6fc6879b
JM		 279 aka = 1;
280 }
281 eap++;
282 }
283 }
284
285 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
286 sim = 0;
3d332fe7
JM		 287 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
288 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
289 NULL)
6fc6879b
JM		 290 aka = 0;
291
292 if (!sim && !aka) {
f049052b
BG		 293 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
294 "use SIM, but neither EAP-SIM nor EAP-AKA are "
295 "enabled");
6fc6879b
JM		 296 return 0;
297 }
298
f049052b
BG		 299 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
300 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
6fc6879b
JM		 301 if (sim && aka)
302 type = SCARD_TRY_BOTH;
303 else if (aka)
304 type = SCARD_USIM_ONLY;
305 else
306 type = SCARD_GSM_SIM_ONLY;
307
f64adcd7 308 wpa_s->scard = scard_init(type, NULL);
6fc6879b 309 if (wpa_s->scard == NULL) {
f049052b
BG		 310 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
311 "(pcsc-lite)");
6fc6879b
JM		 312 return -1;
313 }
314 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
315 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
b832d34c 316#endif /* PCSC_FUNCS */
6fc6879b
JM		 317#endif /* IEEE8021X_EAPOL */
318
319 return 0;
320}
321
322
323#ifndef CONFIG_NO_SCAN_PROCESSING
620c7837 324static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
6fc6879b
JM		 325 struct wpa_ssid *ssid)
326{
327 int i, privacy = 0;
328
329 if (ssid->mixed_cell)
330 return 1;
331
0632542b
AT		 332#ifdef CONFIG_WPS
333 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
334 return 1;
335#endif /* CONFIG_WPS */
336
6fc6879b
JM		 337 for (i = 0; i < NUM_WEP_KEYS; i++) {
338 if (ssid->wep_key_len[i]) {
339 privacy = 1;
340 break;
341 }
342 }
343#ifdef IEEE8021X_EAPOL
344 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
345 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
346 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
347 privacy = 1;
348#endif /* IEEE8021X_EAPOL */
349
29fbc522
JM		 350 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
351 privacy = 1;
352
6fc6879b
JM		 353 if (bss->caps & IEEE80211_CAP_PRIVACY)
354 return privacy;
355 return !privacy;
356}
357
358
a6099152
JM		 359static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
360 struct wpa_ssid *ssid,
620c7837 361 struct wpa_bss *bss)
6fc6879b
JM		 362{
363 struct wpa_ie_data ie;
364 int proto_match = 0;
365 const u8 *rsn_ie, *wpa_ie;
351f09a2 366 int ret;
43882f1e 367 int wep_ok;
6fc6879b 368
a6099152 369 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
351f09a2
JM		 370 if (ret >= 0)
371 return ret;
ad08c363 372
43882f1e
JM		 373 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
374 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
375 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
376 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
377 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
378
620c7837 379 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
6fc6879b
JM		 380 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
381 proto_match++;
382
383 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
f049052b
BG		 384 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
385 "failed");
6fc6879b
JM		 386 break;
387 }
43882f1e
JM		 388
389 if (wep_ok &&
390 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
391 {
f049052b
BG		 392 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
393 "in RSN IE");
43882f1e
JM		 394 return 1;
395 }
396
6fc6879b 397 if (!(ie.proto & ssid->proto)) {
f049052b
BG		 398 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
399 "mismatch");
6fc6879b
JM		 400 break;
401 }
402
403 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
f049052b
BG		 404 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
405 "cipher mismatch");
6fc6879b
JM		 406 break;
407 }
408
409 if (!(ie.group_cipher & ssid->group_cipher)) {
f049052b
BG		 410 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
411 "cipher mismatch");
6fc6879b
JM		 412 break;
413 }
414
415 if (!(ie.key_mgmt & ssid->key_mgmt)) {
f049052b
BG		 416 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
417 "mismatch");
6fc6879b
JM		 418 break;
419 }
420
421#ifdef CONFIG_IEEE80211W
0b60b0aa 422 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
70f8cc8e 423 ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
f049052b
BG		 424 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
425 "frame protection");
6fc6879b
JM		 426 break;
427 }
428#endif /* CONFIG_IEEE80211W */
429
f049052b 430 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
6fc6879b
JM		 431 return 1;
432 }
433
620c7837 434 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
6fc6879b
JM		 435 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
436 proto_match++;
437
438 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
f049052b
BG		 439 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
440 "failed");
6fc6879b
JM		 441 break;
442 }
43882f1e
JM		 443
444 if (wep_ok &&
445 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
446 {
f049052b
BG		 447 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
448 "in WPA IE");
43882f1e
JM		 449 return 1;
450 }
451
6fc6879b 452 if (!(ie.proto & ssid->proto)) {
f049052b
BG		 453 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
454 "mismatch");
6fc6879b
JM		 455 break;
456 }
457
458 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
f049052b
BG		 459 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
460 "cipher mismatch");
6fc6879b
JM		 461 break;
462 }
463
464 if (!(ie.group_cipher & ssid->group_cipher)) {
f049052b
BG		 465 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
466 "cipher mismatch");
6fc6879b
JM		 467 break;
468 }
469
470 if (!(ie.key_mgmt & ssid->key_mgmt)) {
f049052b
BG		 471 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
472 "mismatch");
6fc6879b
JM		 473 break;
474 }
475
f049052b 476 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
6fc6879b
JM		 477 return 1;
478 }
479
a3f7e518
JM		 480 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
481 !rsn_ie) {
482 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
483 return 1;
484 }
485
cc5e390d 486 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
df83fb7d 487 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
f049052b 488 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
cc5e390d
JM		 489 return 0;
490 }
6fc6879b 491
c2f1fe41
JM		 492 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
493 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
494 return 1;
495 }
496
497 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
498 "WPA/WPA2");
499
500 return 0;
6fc6879b
JM		 501}
502
503
b766a9a2
JM		 504static int freq_allowed(int *freqs, int freq)
505{
506 int i;
507
508 if (freqs == NULL)
509 return 1;
510
511 for (i = 0; freqs[i]; i++)
512 if (freqs[i] == freq)
513 return 1;
514 return 0;
515}
516
517
e1e8cae3
CL		 518static int ht_supported(const struct hostapd_hw_modes *mode)
519{
520 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) {
521 /*
522 * The driver did not indicate whether it supports HT. Assume
523 * it does to avoid connection issues.
524 */
525 return 1;
526 }
527
528 /*
529 * IEEE Std 802.11n-2009 20.1.1:
530 * An HT non-AP STA shall support all EQM rates for one spatial stream.
531 */
532 return mode->mcs_set[0] == 0xff;
533}
534
535
620c7837 536static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
e1e8cae3
CL		 537{
538 const struct hostapd_hw_modes *mode = NULL, *modes;
539 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
540 const u8 *rate_ie;
541 int i, j, k;
542
a6d94e1b
JM		 543 if (bss->freq == 0)
544 return 1; /* Cannot do matching without knowing band */
545
e1e8cae3
CL		 546 modes = wpa_s->hw.modes;
547 if (modes == NULL) {
548 /*
549 * The driver does not provide any additional information
550 * about the utilized hardware, so allow the connection attempt
551 * to continue.
552 */
553 return 1;
554 }
555
556 for (i = 0; i < wpa_s->hw.num_modes; i++) {
557 for (j = 0; j < modes[i].num_channels; j++) {
558 int freq = modes[i].channels[j].freq;
559 if (freq == bss->freq) {
560 if (mode &&
561 mode->mode == HOSTAPD_MODE_IEEE80211G)
562 break; /* do not allow 802.11b replace
563 * 802.11g */
564 mode = &modes[i];
565 break;
566 }
567 }
568 }
569
570 if (mode == NULL)
571 return 0;
572
573 for (i = 0; i < (int) sizeof(scan_ie); i++) {
620c7837 574 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
e1e8cae3
CL		 575 if (rate_ie == NULL)
576 continue;
577
578 for (j = 2; j < rate_ie[1] + 2; j++) {
579 int flagged = !!(rate_ie[j] & 0x80);
580 int r = (rate_ie[j] & 0x7f) * 5;
581
582 /*
583 * IEEE Std 802.11n-2009 7.3.2.2:
584 * The new BSS Membership selector value is encoded
585 * like a legacy basic rate, but it is not a rate and
586 * only indicates if the BSS members are required to
587 * support the mandatory features of Clause 20 [HT PHY]
588 * in order to join the BSS.
589 */
590 if (flagged && ((rate_ie[j] & 0x7f) ==
591 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
592 if (!ht_supported(mode)) {
593 wpa_dbg(wpa_s, MSG_DEBUG,
594 " hardware does not support "
595 "HT PHY");
596 return 0;
597 }
598 continue;
599 }
600
601 if (!flagged)
602 continue;
603
604 /* check for legacy basic rates */
605 for (k = 0; k < mode->num_rates; k++) {
606 if (mode->rates[k] == r)
607 break;
608 }
609 if (k == mode->num_rates) {
610 /*
611 * IEEE Std 802.11-2007 7.3.2.2 demands that in
612 * order to join a BSS all required rates
613 * have to be supported by the hardware.
614 */
615 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does "
616 "not support required rate %d.%d Mbps",
617 r / 10, r % 10);
618 return 0;
619 }
620 }
621 }
622
623 return 1;
624}
625
626
d8d940b7 627static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
620c7837 628 int i, struct wpa_bss *bss,
d8d940b7 629 struct wpa_ssid *group)
6fc6879b 630{
620c7837 631 u8 wpa_ie_len, rsn_ie_len;
d8d940b7 632 int wpa;
6fc6879b
JM		 633 struct wpa_blacklist *e;
634 const u8 *ie;
d8d940b7 635 struct wpa_ssid *ssid;
6fc6879b 636
620c7837 637 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
d8d940b7 638 wpa_ie_len = ie ? ie[1] : 0;
6fc6879b 639
620c7837 640 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
d8d940b7 641 rsn_ie_len = ie ? ie[1] : 0;
6fc6879b 642
f049052b
BG		 643 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
644 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
620c7837 645 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
f049052b 646 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
620c7837 647 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
9cf32261 648
d8d940b7 649 e = wpa_blacklist_get(wpa_s, bss->bssid);
5471c343
JM		 650 if (e) {
651 int limit = 1;
349493bd 652 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
5471c343
JM		 653 /*
654 * When only a single network is enabled, we can
655 * trigger blacklisting on the first failure. This
656 * should not be done with multiple enabled networks to
657 * avoid getting forced to move into a worse ESS on
658 * single error if there are no other BSSes of the
659 * current ESS.
660 */
661 limit = 0;
662 }
663 if (e->count > limit) {
f049052b
BG		 664 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
665 "(count=%d limit=%d)", e->count, limit);
c2197bc9 666 return NULL;
5471c343 667 }
d8d940b7 668 }
6fc6879b 669
620c7837 670 if (bss->ssid_len == 0) {
f049052b 671 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
c2197bc9 672 return NULL;
d8d940b7 673 }
e81634cd 674
d8d940b7 675 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
6fc6879b 676
d8d940b7
JM		 677 for (ssid = group; ssid; ssid = ssid->pnext) {
678 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
00e5e3d5 679 int res;
ad08c363 680
349493bd 681 if (wpas_network_disabled(wpa_s, ssid)) {
f049052b 682 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
0c703df3 683 continue;
d8d940b7 684 }
9cf32261 685
00e5e3d5
JM		 686 res = wpas_temp_disabled(wpa_s, ssid);
687 if (res > 0) {
688 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
689 "temporarily for %d second(s)", res);
690 continue;
691 }
692
ad08c363 693#ifdef CONFIG_WPS
f648bc7d 694 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
f049052b
BG		 695 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
696 "(WPS)");
f648bc7d
JM		 697 continue;
698 }
699
d8d940b7
JM		 700 if (wpa && ssid->ssid_len == 0 &&
701 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
702 check_ssid = 0;
703
704 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
705 /* Only allow wildcard SSID match if an AP
706 * advertises active WPS operation that matches
707 * with our mode. */
708 check_ssid = 1;
ad08c363 709 if (ssid->ssid_len == 0 &&
a6099152 710 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
ad08c363 711 check_ssid = 0;
d8d940b7 712 }
ad08c363
JM		 713#endif /* CONFIG_WPS */
714
7d232e23
ZC		 715 if (ssid->bssid_set && ssid->ssid_len == 0 &&
716 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
717 check_ssid = 0;
718
d8d940b7 719 if (check_ssid &&
620c7837
JM		 720 (bss->ssid_len != ssid->ssid_len ||
721 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
f049052b 722 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
0c703df3 723 continue;
6fc6879b 724 }
6fc6879b 725
d8d940b7
JM		 726 if (ssid->bssid_set &&
727 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
f049052b 728 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
0c703df3 729 continue;
d8d940b7 730 }
6fc6879b 731
cc5e390d 732 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
0c703df3 733 continue;
9cf32261 734
d8d940b7
JM		 735 if (!wpa &&
736 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
737 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
738 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
f049052b
BG		 739 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
740 "not allowed");
0c703df3 741 continue;
6fc6879b 742 }
9cf32261 743
29fbc522 744 if (!wpa_supplicant_match_privacy(bss, ssid)) {
f049052b
BG		 745 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
746 "mismatch");
0c703df3 747 continue;
e81634cd
JM		 748 }
749
29fbc522 750 if (bss->caps & IEEE80211_CAP_IBSS) {
f049052b
BG		 751 wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) "
752 "network");
0c703df3 753 continue;
d8d940b7 754 }
b766a9a2 755
d8d940b7 756 if (!freq_allowed(ssid->freq_list, bss->freq)) {
f049052b
BG		 757 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
758 "allowed");
0c703df3 759 continue;
6fc6879b 760 }
d8d940b7 761
e1e8cae3
CL		 762 if (!rate_match(wpa_s, bss)) {
763 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
764 "not match");
765 continue;
766 }
767
73e49269
JM		 768#ifdef CONFIG_P2P
769 /*
770 * TODO: skip the AP if its P2P IE has Group Formation
771 * bit set in the P2P Group Capability Bitmap and we
772 * are not in Group Formation with that device.
773 */
774#endif /* CONFIG_P2P */
775
d8d940b7
JM		 776 /* Matching configuration found */
777 return ssid;
6fc6879b
JM		 778 }
779
d8d940b7 780 /* No matching configuration found */
c2197bc9 781 return NULL;
9cf32261
JM		 782}
783
784
6fa81a3b 785static struct wpa_bss *
a1fd2ce5 786wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
a1fd2ce5 787 struct wpa_ssid *group,
9cf32261
JM		 788 struct wpa_ssid **selected_ssid)
789{
620c7837 790 unsigned int i;
9cf32261 791
f049052b
BG		 792 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
793 group->priority);
9cf32261 794
620c7837
JM		 795 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
796 struct wpa_bss *bss = wpa_s->last_scan_res[i];
d8d940b7
JM		 797 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
798 if (!*selected_ssid)
799 continue;
f049052b
BG		 800 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
801 " ssid='%s'",
620c7837
JM		 802 MAC2STR(bss->bssid),
803 wpa_ssid_txt(bss->ssid, bss->ssid_len));
804 return bss;
d8d940b7
JM		 805 }
806
807 return NULL;
6fc6879b
JM		 808}
809
810
6fa81a3b 811static struct wpa_bss *
09b9df4e
JM		 812wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
813 struct wpa_ssid **selected_ssid)
6fc6879b 814{
6fa81a3b 815 struct wpa_bss *selected = NULL;
09b9df4e
JM		 816 int prio;
817
620c7837
JM		 818 if (wpa_s->last_scan_res == NULL ||
819 wpa_s->last_scan_res_used == 0)
820 return NULL; /* no scan results from last update */
821
09b9df4e
JM		 822 while (selected == NULL) {
823 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
824 selected = wpa_supplicant_select_bss(
620c7837 825 wpa_s, wpa_s->conf->pssid[prio],
09b9df4e
JM		 826 selected_ssid);
827 if (selected)
828 break;
829 }
830
8945cc45
BM		 831 if (selected == NULL && wpa_s->blacklist &&
832 !wpa_s->countermeasures) {
f049052b
BG		 833 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
834 "blacklist and try again");
09b9df4e
JM		 835 wpa_blacklist_clear(wpa_s);
836 wpa_s->blacklist_cleared++;
837 } else if (selected == NULL)
838 break;
839 }
840
841 return selected;
842}
843
844
845static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
977b1174 846 int timeout_sec, int timeout_usec)
09b9df4e 847{
349493bd 848 if (!wpa_supplicant_enabled_networks(wpa_s)) {
4f34d51a
SL		 849 /*
850 * No networks are enabled; short-circuit request so
851 * we don't wait timeout seconds before transitioning
852 * to INACTIVE state.
853 */
854 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
855 return;
09b9df4e 856 }
977b1174 857 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
09b9df4e
JM		 858}
859
860
5cbd88d9
JJ		 861int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
862 struct wpa_bss *selected,
863 struct wpa_ssid *ssid)
09b9df4e
JM		 864{
865 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
866 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
867 "PBC session overlap");
b73bf0a7
JM		 868#ifdef CONFIG_P2P
869 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
5cbd88d9 870 return -1;
b73bf0a7 871#endif /* CONFIG_P2P */
199716ad
BG		 872
873#ifdef CONFIG_WPS
7736f18b 874 wpas_wps_cancel(wpa_s);
199716ad 875#endif /* CONFIG_WPS */
5cbd88d9 876 return -1;
09b9df4e
JM		 877 }
878
879 /*
880 * Do not trigger new association unless the BSSID has changed or if
881 * reassociation is requested. If we are in process of associating with
882 * the selected BSSID, do not trigger new attempt.
883 */
884 if (wpa_s->reassociate ||
885 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
e29853bb
BG		 886 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
887 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
09b9df4e
JM		 888 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
889 0))) {
890 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
977b1174 891 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
5cbd88d9 892 return 0;
09b9df4e 893 }
e29853bb
BG		 894 wpa_msg(wpa_s, MSG_DEBUG, "Request association: "
895 "reassociate: %d selected: "MACSTR " bssid: " MACSTR
896 " pending: " MACSTR " wpa_state: %s",
897 wpa_s->reassociate, MAC2STR(selected->bssid),
898 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
899 wpa_supplicant_state_txt(wpa_s->wpa_state));
09b9df4e
JM		 900 wpa_supplicant_associate(wpa_s, selected, ssid);
901 } else {
f049052b
BG		 902 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the "
903 "selected AP");
09b9df4e 904 }
5cbd88d9
JJ		 905
906 return 0;
09b9df4e
JM		 907}
908
909
b55aaa5f
JM		 910static struct wpa_ssid *
911wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
912{
913 int prio;
914 struct wpa_ssid *ssid;
915
916 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
917 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
918 {
349493bd 919 if (wpas_network_disabled(wpa_s, ssid))
b55aaa5f
JM		 920 continue;
921 if (ssid->mode == IEEE80211_MODE_IBSS ||
922 ssid->mode == IEEE80211_MODE_AP)
923 return ssid;
924 }
925 }
926 return NULL;
927}
928
929
a1fd2ce5
JM		 930/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
931 * on BSS added and BSS changed events */
6ae93185 932static void wpa_supplicant_rsn_preauth_scan_results(
6d28fb96 933 struct wpa_supplicant *wpa_s)
6ae93185 934{
6d28fb96 935 struct wpa_bss *bss;
6ae93185
JM		 936
937 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
938 return;
939
6d28fb96 940 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
6ae93185 941 const u8 *ssid, *rsn;
6ae93185 942
6d28fb96 943 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
6ae93185
JM		 944 if (ssid == NULL)
945 continue;
946
6d28fb96 947 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
6ae93185
JM		 948 if (rsn == NULL)
949 continue;
950
6d28fb96 951 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
6ae93185
JM		 952 }
953
954}
955
956
48563d86
JM		 957static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
958 struct wpa_bss *selected,
20ed5e40 959 struct wpa_ssid *ssid)
48563d86 960{
20ed5e40 961 struct wpa_bss *current_bss = NULL;
48563d86
JM		 962 int min_diff;
963
964 if (wpa_s->reassociate)
965 return 1; /* explicit request to reassociate */
966 if (wpa_s->wpa_state < WPA_ASSOCIATED)
967 return 1; /* we are not associated; continue */
968 if (wpa_s->current_ssid == NULL)
969 return 1; /* unknown current SSID */
970 if (wpa_s->current_ssid != ssid)
971 return 1; /* different network block */
972
22628eca
JM		 973 if (wpas_driver_bss_selection(wpa_s))
974 return 0; /* Driver-based roaming */
975
20ed5e40
JM		 976 if (wpa_s->current_ssid->ssid)
977 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
978 wpa_s->current_ssid->ssid,
979 wpa_s->current_ssid->ssid_len);
980 if (!current_bss)
981 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
48563d86
JM		 982
983 if (!current_bss)
984 return 1; /* current BSS not seen in scan results */
985
20ed5e40
JM		 986 if (current_bss == selected)
987 return 0;
988
989 if (selected->last_update_idx > current_bss->last_update_idx)
990 return 1; /* current BSS not seen in the last scan */
991
e9af53ad 992#ifndef CONFIG_NO_ROAMING
f049052b
BG		 993 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
994 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
995 MAC2STR(current_bss->bssid), current_bss->level);
996 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
997 MAC2STR(selected->bssid), selected->level);
48563d86 998
ac26ebd8
JM		 999 if (wpa_s->current_ssid->bssid_set &&
1000 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1001 0) {
f049052b
BG		 1002 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1003 "has preferred BSSID");
ac26ebd8
JM		 1004 return 1;
1005 }
1006
48563d86
JM		 1007 min_diff = 2;
1008 if (current_bss->level < 0) {
1009 if (current_bss->level < -85)
1010 min_diff = 1;
1011 else if (current_bss->level < -80)
1012 min_diff = 2;
1013 else if (current_bss->level < -75)
1014 min_diff = 3;
1015 else if (current_bss->level < -70)
1016 min_diff = 4;
1017 else
1018 min_diff = 5;
1019 }
1020 if (abs(current_bss->level - selected->level) < min_diff) {
f049052b
BG		 1021 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1022 "in signal level");
48563d86
JM		 1023 return 0;
1024 }
1025
1026 return 1;
e9af53ad
DS		 1027#else /* CONFIG_NO_ROAMING */
1028 return 0;
1029#endif /* CONFIG_NO_ROAMING */
48563d86
JM		 1030}
1031
cd2f4ddf 1032
10ac7ddf
JM		 1033/* Return < 0 if no scan results could be fetched or if scan results should not
1034 * be shared with other virtual interfaces. */
e1504976
BG		 1035static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1036 union wpa_event_data *data)
09b9df4e 1037{
6fa81a3b 1038 struct wpa_bss *selected;
6fc6879b 1039 struct wpa_ssid *ssid = NULL;
a1fd2ce5 1040 struct wpa_scan_results *scan_res;
5bc0cdb7 1041 int ap = 0;
7b1aa4fe
JM		 1042#ifndef CONFIG_NO_RANDOM_POOL
1043 size_t i, num;
1044#endif /* CONFIG_NO_RANDOM_POOL */
5bc0cdb7
JM		 1045
1046#ifdef CONFIG_AP
1047 if (wpa_s->ap_iface)
1048 ap = 1;
1049#endif /* CONFIG_AP */
6fc6879b 1050
cb8564b1
DW		 1051 wpa_supplicant_notify_scanning(wpa_s, 0);
1052
39185dfa
JM		 1053#ifdef CONFIG_P2P
1054 if (wpa_s->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
99fcd404 1055 wpa_s->global->p2p != NULL && !wpa_s->sta_scan_pending) {
39185dfa
JM		 1056 wpa_s->p2p_cb_on_scan_complete = 0;
1057 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
1058 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
1059 "stopped scan processing");
1060 return -1;
1061 }
1062 }
99fcd404 1063 wpa_s->sta_scan_pending = 0;
39185dfa
JM		 1064#endif /* CONFIG_P2P */
1065
a1fd2ce5
JM		 1066 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1067 data ? &data->scan_info :
1068 NULL, 1);
1069 if (scan_res == NULL) {
5bc0cdb7 1070 if (wpa_s->conf->ap_scan == 2 || ap)
e1504976 1071 return -1;
f049052b
BG		 1072 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1073 "scanning again");
977b1174 1074 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
e1504976 1075 return -1;
6fc6879b
JM		 1076 }
1077
bbb921da 1078#ifndef CONFIG_NO_RANDOM_POOL
bbb921da
JM		 1079 num = scan_res->num;
1080 if (num > 10)
1081 num = 10;
1082 for (i = 0; i < num; i++) {
1083 u8 buf[5];
1084 struct wpa_scan_res *res = scan_res->res[i];
1085 buf[0] = res->bssid[5];
1086 buf[1] = res->qual & 0xff;
1087 buf[2] = res->noise & 0xff;
1088 buf[3] = res->level & 0xff;
1089 buf[4] = res->tsf & 0xff;
1090 random_add_randomness(buf, sizeof(buf));
1091 }
1092#endif /* CONFIG_NO_RANDOM_POOL */
1093
64e58f51 1094 if (wpa_s->scan_res_handler) {
860fddbb
JB		 1095 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1096 struct wpa_scan_results *scan_res);
1097
1098 scan_res_handler = wpa_s->scan_res_handler;
64e58f51 1099 wpa_s->scan_res_handler = NULL;
860fddbb
JB		 1100 scan_res_handler(wpa_s, scan_res);
1101
64e58f51 1102 wpa_scan_results_free(scan_res);
10ac7ddf 1103 return -2;
64e58f51
JM		 1104 }
1105
5bc0cdb7 1106 if (ap) {
f049052b 1107 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
c202f19c
JB		 1108#ifdef CONFIG_AP
1109 if (wpa_s->ap_iface->scan_cb)
1110 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1111#endif /* CONFIG_AP */
5bc0cdb7 1112 wpa_scan_results_free(scan_res);
e1504976 1113 return 0;
5bc0cdb7
JM		 1114 }
1115
f049052b 1116 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
24f76940
JM		 1117 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1118 wpas_notify_scan_results(wpa_s);
6fc6879b 1119
8bac466b
JM		 1120 wpas_notify_scan_done(wpa_s, 1);
1121
c3701c66
RM		 1122 if (sme_proc_obss_scan(wpa_s) > 0) {
1123 wpa_scan_results_free(scan_res);
1124 return 0;
1125 }
1126
a1fd2ce5
JM		 1127 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
1128 wpa_scan_results_free(scan_res);
e1504976 1129 return 0;
a1fd2ce5 1130 }
6fc6879b 1131
7c865c68
TB		 1132 if (autoscan_notify_scan(wpa_s, scan_res)) {
1133 wpa_scan_results_free(scan_res);
1134 return 0;
1135 }
1136
3180d7a2
SO		 1137 if (wpa_s->disconnected) {
1138 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
a1fd2ce5 1139 wpa_scan_results_free(scan_res);
e1504976 1140 return 0;
3180d7a2
SO		 1141 }
1142
22628eca
JM		 1143 if (!wpas_driver_bss_selection(wpa_s) &&
1144 bgscan_notify_scan(wpa_s, scan_res) == 1) {
a1fd2ce5 1145 wpa_scan_results_free(scan_res);
e1504976 1146 return 0;
a1fd2ce5
JM		 1147 }
1148
f9f0526b
JM		 1149 wpas_wps_update_ap_info(wpa_s, scan_res);
1150
20ed5e40
JM		 1151 wpa_scan_results_free(scan_res);
1152
620c7837
JM		 1153 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1154
6fc6879b 1155 if (selected) {
48563d86 1156 int skip;
20ed5e40 1157 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1bbff09e
JM		 1158 if (skip) {
1159 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
e1504976 1160 return 0;
1bbff09e 1161 }
5cbd88d9
JJ		 1162
1163 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1164 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1165 return -1;
1166 }
6d28fb96 1167 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
6fc6879b 1168 } else {
f049052b 1169 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
b55aaa5f
JM		 1170 ssid = wpa_supplicant_pick_new_network(wpa_s);
1171 if (ssid) {
f049052b 1172 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
b55aaa5f 1173 wpa_supplicant_associate(wpa_s, NULL, ssid);
6d28fb96 1174 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
977b1174 1175 } else {
67b9bd08 1176 int timeout_sec = wpa_s->scan_interval;
977b1174 1177 int timeout_usec = 0;
0817de90 1178#ifdef CONFIG_P2P
aa9bb764
JM		 1179 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1)
1180 return 0;
1181
0817de90
JM		 1182 if (wpa_s->p2p_in_provisioning) {
1183 /*
1184 * Use shorter wait during P2P Provisioning
1185 * state to speed up group formation.
1186 */
1187 timeout_sec = 0;
1188 timeout_usec = 250000;
a4cba8f1
LC		 1189 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1190 timeout_usec);
1191 return 0;
0817de90
JM		 1192 }
1193#endif /* CONFIG_P2P */
4d5bda5f
JM		 1194#ifdef CONFIG_INTERWORKING
1195 if (wpa_s->conf->auto_interworking &&
1196 wpa_s->conf->interworking &&
1197 wpa_s->conf->cred) {
1198 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1199 "start ANQP fetch since no matching "
1200 "networks found");
1201 wpa_s->network_select = 1;
1202 wpa_s->auto_network_select = 1;
1203 interworking_start_fetch_anqp(wpa_s);
1204 return 0;
1205 }
1206#endif /* CONFIG_INTERWORKING */
a4cba8f1
LC		 1207 if (wpa_supplicant_req_sched_scan(wpa_s))
1208 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1209 timeout_usec);
977b1174 1210 }
6fc6879b 1211 }
e1504976 1212 return 0;
6fc6879b 1213}
6859f1cb
BG		 1214
1215
1216static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1217 union wpa_event_data *data)
1218{
1219 const char *rn, *rn2;
1220 struct wpa_supplicant *ifs;
1221
e1504976
BG		 1222 if (_wpa_supplicant_event_scan_results(wpa_s, data) < 0) {
1223 /*
1224 * If no scan results could be fetched, then no need to
1225 * notify those interfaces that did not actually request
1226 * this scan.
1227 */
1228 return;
1229 }
6859f1cb
BG		 1230
1231 /*
1232 * Check other interfaces to see if they have the same radio-name. If
1233 * so, they get updated with this same scan info.
1234 */
1235 if (!wpa_s->driver->get_radio_name)
1236 return;
1237
1238 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
1239 if (rn == NULL || rn[0] == '\0')
1240 return;
1241
f049052b
BG		 1242 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces "
1243 "sharing same radio (%s) in event_scan_results", rn);
6859f1cb
BG		 1244
1245 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
1246 if (ifs == wpa_s || !ifs->driver->get_radio_name)
1247 continue;
1248
1249 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
1250 if (rn2 && os_strcmp(rn, rn2) == 0) {
1251 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1252 "sibling", ifs->ifname);
1253 _wpa_supplicant_event_scan_results(ifs, data);
1254 }
1255 }
1256}
1257
6fc6879b
JM		 1258#endif /* CONFIG_NO_SCAN_PROCESSING */
1259
1260
b6668734
JM		 1261#ifdef CONFIG_WNM
1262
1263static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1264{
1265 struct wpa_supplicant *wpa_s = eloop_ctx;
1266
1267 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1268 return;
1269
f5d4dd5a
JM		 1270 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1271 MAC2STR(wpa_s->bssid));
b6668734 1272 /* TODO: could skip this if normal data traffic has been sent */
f5d4dd5a
JM		 1273 /* TODO: Consider using some more appropriate data frame for this */
1274 if (wpa_s->l2)
1275 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, (u8 *) "", 0);
b6668734 1276
597c7a8d 1277#ifdef CONFIG_SME
b6668734
JM		 1278 if (wpa_s->sme.bss_max_idle_period) {
1279 unsigned int msec;
1280 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1281 if (msec > 100)
1282 msec -= 100;
1283 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1284 wnm_bss_keep_alive, wpa_s, NULL);
1285 }
597c7a8d 1286#endif /* CONFIG_SME */
b6668734
JM		 1287}
1288
1289
1290static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1291 const u8 *ies, size_t ies_len)
1292{
1293 struct ieee802_11_elems elems;
1294
1295 if (ies == NULL)
1296 return;
1297
1298 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1299 return;
1300
1301#ifdef CONFIG_SME
1302 if (elems.bss_max_idle_period) {
1303 unsigned int msec;
1304 wpa_s->sme.bss_max_idle_period =
1305 WPA_GET_LE16(elems.bss_max_idle_period);
1306 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1307 "TU)%s", wpa_s->sme.bss_max_idle_period,
1308 (elems.bss_max_idle_period[2] & 0x01) ?
1309 " (protected keep-live required)" : "");
1310 if (wpa_s->sme.bss_max_idle_period == 0)
1311 wpa_s->sme.bss_max_idle_period = 1;
1312 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1313 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1314 /* msec times 1000 */
1315 msec = wpa_s->sme.bss_max_idle_period * 1024;
1316 if (msec > 100)
1317 msec -= 100;
1318 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1319 wnm_bss_keep_alive, wpa_s,
1320 NULL);
1321 }
1322 }
1323#endif /* CONFIG_SME */
1324}
1325
1326#endif /* CONFIG_WNM */
1327
1328
1329void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1330{
1331#ifdef CONFIG_WNM
1332 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1333#endif /* CONFIG_WNM */
1334}
1335
1336
579ce771
JM		 1337static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1338 union wpa_event_data *data)
6fc6879b
JM		 1339{
1340 int l, len, found = 0, wpa_found, rsn_found;
c2a04078 1341 const u8 *p;
6fc6879b 1342
f049052b 1343 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
6fc6879b
JM		 1344 if (data->assoc_info.req_ies)
1345 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1346 data->assoc_info.req_ies_len);
52c9e6f3 1347 if (data->assoc_info.resp_ies) {
6fc6879b
JM		 1348 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1349 data->assoc_info.resp_ies_len);
52c9e6f3
JM		 1350#ifdef CONFIG_TDLS
1351 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1352 data->assoc_info.resp_ies_len);
1353#endif /* CONFIG_TDLS */
b6668734
JM		 1354#ifdef CONFIG_WNM
1355 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1356 data->assoc_info.resp_ies_len);
1357#endif /* CONFIG_WNM */
52c9e6f3 1358 }
6fc6879b
JM		 1359 if (data->assoc_info.beacon_ies)
1360 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1361 data->assoc_info.beacon_ies,
1362 data->assoc_info.beacon_ies_len);
4832ecd7 1363 if (data->assoc_info.freq)
f049052b
BG		 1364 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1365 data->assoc_info.freq);
6fc6879b
JM		 1366
1367 p = data->assoc_info.req_ies;
1368 l = data->assoc_info.req_ies_len;
1369
1370 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1371 while (p && l >= 2) {
1372 len = p[1] + 2;
1373 if (len > l) {
1374 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1375 p, l);
1376 break;
1377 }
1378 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1379 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1380 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1381 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1382 break;
1383 found = 1;
1384 wpa_find_assoc_pmkid(wpa_s);
1385 break;
1386 }
1387 l -= len;
1388 p += len;
1389 }
1390 if (!found && data->assoc_info.req_ies)
1391 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1392
c2a04078 1393#ifdef CONFIG_IEEE80211R
62c72d72
JM		 1394#ifdef CONFIG_SME
1395 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1396 u8 bssid[ETH_ALEN];
1397 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1398 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1399 data->assoc_info.resp_ies,
1400 data->assoc_info.resp_ies_len,
1401 bssid) < 0) {
f049052b
BG		 1402 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1403 "Reassociation Response failed");
579ce771
JM		 1404 wpa_supplicant_deauthenticate(
1405 wpa_s, WLAN_REASON_INVALID_IE);
1406 return -1;
62c72d72
JM		 1407 }
1408 }
62c72d72 1409
c2a04078
JM		 1410 p = data->assoc_info.resp_ies;
1411 l = data->assoc_info.resp_ies_len;
1412
54f489be 1413#ifdef CONFIG_WPS_STRICT
5dac11e0 1414 if (p && wpa_s->current_ssid &&
54f489be
JM		 1415 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1416 struct wpabuf *wps;
1417 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1418 if (wps == NULL) {
f049052b
BG		 1419 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1420 "include WPS IE in (Re)Association Response");
54f489be
JM		 1421 return -1;
1422 }
1423
1424 if (wps_validate_assoc_resp(wps) < 0) {
1425 wpabuf_free(wps);
1426 wpa_supplicant_deauthenticate(
1427 wpa_s, WLAN_REASON_INVALID_IE);
1428 return -1;
1429 }
1430 wpabuf_free(wps);
1431 }
1432#endif /* CONFIG_WPS_STRICT */
1433
e7846b68 1434 /* Go through the IEs and make a copy of the MDIE, if present. */
c2a04078
JM		 1435 while (p && l >= 2) {
1436 len = p[1] + 2;
1437 if (len > l) {
1438 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1439 p, l);
1440 break;
1441 }
e7846b68
JM		 1442 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1443 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1444 wpa_s->sme.ft_used = 1;
1445 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1446 MOBILITY_DOMAIN_ID_LEN);
1447 break;
1448 }
c2a04078
JM		 1449 l -= len;
1450 p += len;
1451 }
e7846b68 1452#endif /* CONFIG_SME */
c2a04078 1453
e7846b68
JM		 1454 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1455 data->assoc_info.resp_ies_len);
c2a04078
JM		 1456#endif /* CONFIG_IEEE80211R */
1457
6fc6879b
JM		 1458 /* WPA/RSN IE from Beacon/ProbeResp */
1459 p = data->assoc_info.beacon_ies;
1460 l = data->assoc_info.beacon_ies_len;
1461
1462 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1463 */
1464 wpa_found = rsn_found = 0;
1465 while (p && l >= 2) {
1466 len = p[1] + 2;
1467 if (len > l) {
1468 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1469 p, l);
1470 break;
1471 }
1472 if (!wpa_found &&
1473 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1474 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1475 wpa_found = 1;
1476 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1477 }
1478
1479 if (!rsn_found &&
1480 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1481 rsn_found = 1;
1482 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1483 }
1484
1485 l -= len;
1486 p += len;
1487 }
1488
1489 if (!wpa_found && data->assoc_info.beacon_ies)
1490 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1491 if (!rsn_found && data->assoc_info.beacon_ies)
1492 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1493 if (wpa_found || rsn_found)
1494 wpa_s->ap_ies_from_associnfo = 1;
4832ecd7 1495
117e812d
JM		 1496 if (wpa_s->assoc_freq && data->assoc_info.freq &&
1497 wpa_s->assoc_freq != data->assoc_info.freq) {
1498 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1499 "%u to %u MHz",
1500 wpa_s->assoc_freq, data->assoc_info.freq);
1501 wpa_supplicant_update_scan_results(wpa_s);
1502 }
1503
4832ecd7 1504 wpa_s->assoc_freq = data->assoc_info.freq;
579ce771
JM		 1505
1506 return 0;
6fc6879b
JM		 1507}
1508
1509
cd2f4ddf
SM		 1510static struct wpa_bss * wpa_supplicant_get_new_bss(
1511 struct wpa_supplicant *wpa_s, const u8 *bssid)
1512{
1513 struct wpa_bss *bss = NULL;
1514 struct wpa_ssid *ssid = wpa_s->current_ssid;
1515
1516 if (ssid->ssid_len > 0)
1517 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
1518 if (!bss)
1519 bss = wpa_bss_get_bssid(wpa_s, bssid);
1520
1521 return bss;
1522}
1523
1524
ad9ee4d4
JM		 1525static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
1526{
1527 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
1528
1529 if (!wpa_s->current_bss || !wpa_s->current_ssid)
1530 return -1;
1531
1532 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
1533 return 0;
1534
1535 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
1536 WPA_IE_VENDOR_TYPE);
1537 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
1538
1539 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1540 bss_wpa ? 2 + bss_wpa[1] : 0) ||
1541 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1542 bss_rsn ? 2 + bss_rsn[1] : 0))
1543 return -1;
1544
1545 return 0;
1546}
1547
1548
6fc6879b
JM		 1549static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1550 union wpa_event_data *data)
1551{
1552 u8 bssid[ETH_ALEN];
1d041bec 1553 int ft_completed;
0194fedb 1554 struct wpa_driver_capa capa;
6fc6879b 1555
1d041bec
JM		 1556#ifdef CONFIG_AP
1557 if (wpa_s->ap_iface) {
1558 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1559 data->assoc_info.addr,
1560 data->assoc_info.req_ies,
39b08b5f
SP		 1561 data->assoc_info.req_ies_len,
1562 data->assoc_info.reassoc);
1d041bec
JM		 1563 return;
1564 }
1565#endif /* CONFIG_AP */
1566
1567 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
579ce771
JM		 1568 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1569 return;
6fc6879b 1570
0a0c38f6
MH		 1571 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
1572 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
1573 wpa_supplicant_disassociate(
1574 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1575 return;
1576 }
1577
6fc6879b 1578 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
0a0c38f6 1579 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
f049052b 1580 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
6fc6879b 1581 MACSTR, MAC2STR(bssid));
bbb921da 1582 random_add_randomness(bssid, ETH_ALEN);
6fc6879b
JM		 1583 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1584 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
e485286c 1585 wpas_notify_bssid_changed(wpa_s);
8bac466b 1586
6fc6879b
JM		 1587 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1588 wpa_clear_keys(wpa_s, bssid);
1589 }
1590 if (wpa_supplicant_select_config(wpa_s) < 0) {
1591 wpa_supplicant_disassociate(
1592 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1593 return;
1594 }
8f770587
JM		 1595 if (wpa_s->current_ssid) {
1596 struct wpa_bss *bss = NULL;
cd2f4ddf
SM		 1597
1598 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
1599 if (!bss) {
1600 wpa_supplicant_update_scan_results(wpa_s);
1601
1602 /* Get the BSS from the new scan results */
1603 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
1604 }
1605
8f770587
JM		 1606 if (bss)
1607 wpa_s->current_bss = bss;
1608 }
cd2f4ddf
SM		 1609
1610 if (wpa_s->conf->ap_scan == 1 &&
1611 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
1612 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0)
1613 wpa_msg(wpa_s, MSG_WARNING,
1614 "WPA/RSN IEs not updated");
1615 }
6fc6879b
JM		 1616 }
1617
62fa124c
JM		 1618#ifdef CONFIG_SME
1619 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1620 wpa_s->sme.prev_bssid_set = 1;
1621#endif /* CONFIG_SME */
1622
6fc6879b
JM		 1623 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1624 if (wpa_s->current_ssid) {
1625 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1626 * initialized before association, but for other modes,
1627 * initialize PC/SC here, if the current configuration needs
1628 * smartcard or SIM/USIM. */
1629 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1630 }
1631 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
3f967fe0
JM		 1632 if (wpa_s->l2)
1633 l2_packet_notify_auth_start(wpa_s->l2);
6fc6879b
JM		 1634
1635 /*
1636 * Set portEnabled first to FALSE in order to get EAP state machine out
1637 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1638 * state machine may transit to AUTHENTICATING state based on obsolete
1639 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1640 * AUTHENTICATED without ever giving chance to EAP state machine to
1641 * reset the state.
1642 */
1643 if (!ft_completed) {
1644 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1645 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1646 }
56586197 1647 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
6fc6879b
JM		 1648 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1649 /* 802.1X::portControl = Auto */
1650 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1651 wpa_s->eapol_received = 0;
1652 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
9c972abb
JM		 1653 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1654 (wpa_s->current_ssid &&
1655 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
6fc6879b
JM		 1656 wpa_supplicant_cancel_auth_timeout(wpa_s);
1657 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1658 } else if (!ft_completed) {
1659 /* Timeout for receiving the first EAPOL packet */
1660 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1661 }
1662 wpa_supplicant_cancel_scan(wpa_s);
1663
c2a04078 1664 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
56586197 1665 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
6fc6879b
JM		 1666 /*
1667 * We are done; the driver will take care of RSN 4-way
1668 * handshake.
1669 */
1670 wpa_supplicant_cancel_auth_timeout(wpa_s);
1671 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1672 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1673 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
98ea9431
JM		 1674 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1675 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1676 /*
1677 * The driver will take care of RSN 4-way handshake, so we need
1678 * to allow EAPOL supplicant to complete its work without
1679 * waiting for WPA supplicant.
1680 */
1681 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
16a83d29
JM		 1682 } else if (ft_completed) {
1683 /*
1684 * FT protocol completed - make sure EAPOL state machine ends
1685 * up in authenticated.
1686 */
1687 wpa_supplicant_cancel_auth_timeout(wpa_s);
1688 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1689 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1690 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
6fc6879b 1691 }
1ff73338
JM		 1692
1693 if (wpa_s->pending_eapol_rx) {
1694 struct os_time now, age;
1695 os_get_time(&now);
1696 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1697 if (age.sec == 0 && age.usec < 100000 &&
1698 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1699 0) {
f049052b
BG		 1700 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
1701 "frame that was received just before "
1702 "association notification");
1ff73338
JM		 1703 wpa_supplicant_rx_eapol(
1704 wpa_s, wpa_s->pending_eapol_rx_src,
1705 wpabuf_head(wpa_s->pending_eapol_rx),
1706 wpabuf_len(wpa_s->pending_eapol_rx));
1707 }
1708 wpabuf_free(wpa_s->pending_eapol_rx);
1709 wpa_s->pending_eapol_rx = NULL;
1710 }
60b94c98 1711
0194fedb
JB		 1712 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1713 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
1714 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1715 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
1716 /* Set static WEP keys again */
1717 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
1718 }
50b05780
JM		 1719
1720#ifdef CONFIG_IBSS_RSN
1721 if (wpa_s->current_ssid &&
1722 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
1723 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
78177a00
JM		 1724 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
1725 wpa_s->ibss_rsn == NULL) {
1726 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
1727 if (!wpa_s->ibss_rsn) {
1728 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
1729 wpa_supplicant_deauthenticate(
1730 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1731 return;
1732 }
1733
1734 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
1735 }
50b05780 1736#endif /* CONFIG_IBSS_RSN */
f9f0526b
JM		 1737
1738 wpas_wps_notify_assoc(wpa_s, bssid);
6fc6879b
JM		 1739}
1740
1741
d00821e9
JM		 1742static int disconnect_reason_recoverable(u16 reason_code)
1743{
1744 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
1745 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
1746 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
1747}
1748
1749
0544b242 1750static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
3d9975d5
JM		 1751 u16 reason_code,
1752 int locally_generated)
6fc6879b
JM		 1753{
1754 const u8 *bssid;
0aadd568
JM		 1755
1756 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1757 /*
1758 * At least Host AP driver and a Prism3 card seemed to be
1759 * generating streams of disconnected events when configuring
1760 * IBSS for WPA-None. Ignore them for now.
1761 */
1762 return;
1763 }
1764
1765 bssid = wpa_s->bssid;
1766 if (is_zero_ether_addr(bssid))
1767 bssid = wpa_s->pending_bssid;
1768
1769 if (!is_zero_ether_addr(bssid) ||
1770 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1771 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
1772 " reason=%d%s",
1773 MAC2STR(bssid), reason_code,
1774 locally_generated ? " locally_generated=1" : "");
1775 }
1776}
1777
1778
1779static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
1780 u16 reason_code,
1781 int locally_generated)
1782{
1783 const u8 *bssid;
6d6f4bb8
JM		 1784 int authenticating;
1785 u8 prev_pending_bssid[ETH_ALEN];
d00821e9
JM		 1786 struct wpa_bss *fast_reconnect = NULL;
1787 struct wpa_ssid *fast_reconnect_ssid = NULL;
bcdf2096 1788 struct wpa_ssid *last_ssid;
6d6f4bb8
JM		 1789
1790 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
1791 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
6fc6879b
JM		 1792
1793 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1794 /*
1795 * At least Host AP driver and a Prism3 card seemed to be
1796 * generating streams of disconnected events when configuring
1797 * IBSS for WPA-None. Ignore them for now.
1798 */
f049052b
BG		 1799 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
1800 "IBSS/WPA-None mode");
6fc6879b
JM		 1801 return;
1802 }
1803
1804 if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
56586197 1805 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
6fc6879b
JM		 1806 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
1807 "pre-shared key may be incorrect");
00e5e3d5 1808 wpas_auth_failed(wpa_s);
6fc6879b 1809 }
0d0a8ca1
AC		 1810 if (!wpa_s->auto_reconnect_disabled ||
1811 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
d00821e9 1812 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
f7da5a9e
JM		 1813 "reconnect (wps=%d wpa_state=%d)",
1814 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
1815 wpa_s->wpa_state);
d00821e9
JM		 1816 if (wpa_s->wpa_state == WPA_COMPLETED &&
1817 wpa_s->current_ssid &&
1818 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
3d9975d5 1819 !locally_generated &&
d00821e9
JM		 1820 disconnect_reason_recoverable(reason_code)) {
1821 /*
1822 * It looks like the AP has dropped association with
1823 * us, but could allow us to get back in. Try to
1824 * reconnect to the same BSS without full scan to save
1825 * time for some common cases.
1826 */
1827 fast_reconnect = wpa_s->current_bss;
1828 fast_reconnect_ssid = wpa_s->current_ssid;
1829 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
0d0a8ca1 1830 wpa_supplicant_req_scan(wpa_s, 0, 100000);
f7da5a9e
JM		 1831 else
1832 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
1833 "immediate scan");
0d0a8ca1 1834 } else {
d00821e9 1835 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
f049052b 1836 "try to re-connect");
0d0a8ca1
AC		 1837 wpa_s->reassociate = 0;
1838 wpa_s->disconnected = 1;
433cd2ce 1839 wpa_supplicant_cancel_sched_scan(wpa_s);
0d0a8ca1 1840 }
6fc6879b 1841 bssid = wpa_s->bssid;
a8e16edc 1842 if (is_zero_ether_addr(bssid))
6fc6879b 1843 bssid = wpa_s->pending_bssid;
56d24b4e
JM		 1844 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
1845 wpas_connection_failed(wpa_s, bssid);
6fc6879b 1846 wpa_sm_notify_disassoc(wpa_s->wpa);
0bb1e425
GM		 1847 if (locally_generated)
1848 wpa_s->disconnect_reason = -reason_code;
1849 else
1850 wpa_s->disconnect_reason = reason_code;
1851 wpas_notify_disconnect_reason(wpa_s);
6fc6879b 1852 if (wpa_supplicant_dynamic_keys(wpa_s)) {
f049052b 1853 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
6fc6879b
JM		 1854 wpa_s->keys_cleared = 0;
1855 wpa_clear_keys(wpa_s, wpa_s->bssid);
1856 }
bcdf2096 1857 last_ssid = wpa_s->current_ssid;
6fc6879b 1858 wpa_supplicant_mark_disassoc(wpa_s);
e29853bb 1859
bcdf2096 1860 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
e29853bb 1861 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
bcdf2096
JM		 1862 wpa_s->current_ssid = last_ssid;
1863 }
d00821e9
JM		 1864
1865 if (fast_reconnect) {
5928411e 1866#ifndef CONFIG_NO_SCAN_PROCESSING
d00821e9
JM		 1867 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
1868 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
1869 fast_reconnect_ssid) < 0) {
1870 /* Recover through full scan */
1871 wpa_supplicant_req_scan(wpa_s, 0, 100000);
1872 }
5928411e 1873#endif /* CONFIG_NO_SCAN_PROCESSING */
d00821e9 1874 }
6fc6879b
JM		 1875}
1876
1877
46690a3b 1878#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
01a17491 1879void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
46690a3b
JM		 1880{
1881 struct wpa_supplicant *wpa_s = eloop_ctx;
1882
1883 if (!wpa_s->pending_mic_error_report)
1884 return;
1885
f049052b 1886 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
46690a3b
JM		 1887 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
1888 wpa_s->pending_mic_error_report = 0;
1889}
1890#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1891
1892
6fc6879b
JM		 1893static void
1894wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
1895 union wpa_event_data *data)
1896{
1897 int pairwise;
1898 struct os_time t;
1899
1900 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
1901 pairwise = (data && data->michael_mic_failure.unicast);
6fc6879b 1902 os_get_time(&t);
46690a3b
JM		 1903 if ((wpa_s->last_michael_mic_error &&
1904 t.sec - wpa_s->last_michael_mic_error <= 60) ||
1905 wpa_s->pending_mic_error_report) {
1906 if (wpa_s->pending_mic_error_report) {
1907 /*
1908 * Send the pending MIC error report immediately since
1909 * we are going to start countermeasures and AP better
1910 * do the same.
1911 */
1912 wpa_sm_key_request(wpa_s->wpa, 1,
1913 wpa_s->pending_mic_error_pairwise);
1914 }
1915
1916 /* Send the new MIC error report immediately since we are going
1917 * to start countermeasures and AP better do the same.
1918 */
1919 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1920
6fc6879b
JM		 1921 /* initialize countermeasures */
1922 wpa_s->countermeasures = 1;
8945cc45
BM		 1923
1924 wpa_blacklist_add(wpa_s, wpa_s->bssid);
1925
6fc6879b
JM		 1926 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
1927
1928 /*
1929 * Need to wait for completion of request frame. We do not get
1930 * any callback for the message completion, so just wait a
1931 * short while and hope for the best. */
1932 os_sleep(0, 10000);
1933
1934 wpa_drv_set_countermeasures(wpa_s, 1);
1935 wpa_supplicant_deauthenticate(wpa_s,
1936 WLAN_REASON_MICHAEL_MIC_FAILURE);
1937 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
1938 wpa_s, NULL);
1939 eloop_register_timeout(60, 0,
1940 wpa_supplicant_stop_countermeasures,
1941 wpa_s, NULL);
1942 /* TODO: mark the AP rejected for 60 second. STA is
1943 * allowed to associate with another AP.. */
46690a3b
JM		 1944 } else {
1945#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1946 if (wpa_s->mic_errors_seen) {
1947 /*
1948 * Reduce the effectiveness of Michael MIC error
1949 * reports as a means for attacking against TKIP if
1950 * more than one MIC failure is noticed with the same
1951 * PTK. We delay the transmission of the reports by a
1952 * random time between 0 and 60 seconds in order to
1953 * force the attacker wait 60 seconds before getting
1954 * the information on whether a frame resulted in a MIC
1955 * failure.
1956 */
1957 u8 rval[4];
1958 int sec;
1959
1960 if (os_get_random(rval, sizeof(rval)) < 0)
1961 sec = os_random() % 60;
1962 else
1963 sec = WPA_GET_BE32(rval) % 60;
f049052b
BG		 1964 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
1965 "report %d seconds", sec);
46690a3b
JM		 1966 wpa_s->pending_mic_error_report = 1;
1967 wpa_s->pending_mic_error_pairwise = pairwise;
1968 eloop_cancel_timeout(
1969 wpa_supplicant_delayed_mic_error_report,
1970 wpa_s, NULL);
1971 eloop_register_timeout(
1972 sec, os_random() % 1000000,
1973 wpa_supplicant_delayed_mic_error_report,
1974 wpa_s, NULL);
1975 } else {
1976 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1977 }
1978#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1979 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1980#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
6fc6879b
JM		 1981 }
1982 wpa_s->last_michael_mic_error = t.sec;
46690a3b 1983 wpa_s->mic_errors_seen++;
6fc6879b
JM		 1984}
1985
1986
a83d9c96
SL		 1987#ifdef CONFIG_TERMINATE_ONLASTIF
1988static int any_interfaces(struct wpa_supplicant *head)
1989{
1990 struct wpa_supplicant *wpa_s;
1991
1992 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
1993 if (!wpa_s->interface_removed)
1994 return 1;
1995 return 0;
1996}
1997#endif /* CONFIG_TERMINATE_ONLASTIF */
1998
1999
6fc6879b
JM		 2000static void
2001wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2002 union wpa_event_data *data)
2003{
2004 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2005 return;
2006
2007 switch (data->interface_status.ievent) {
2008 case EVENT_INTERFACE_ADDED:
2009 if (!wpa_s->interface_removed)
2010 break;
2011 wpa_s->interface_removed = 0;
f049052b 2012 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
6fc6879b 2013 if (wpa_supplicant_driver_init(wpa_s) < 0) {
f049052b
BG		 2014 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2015 "driver after interface was added");
6fc6879b 2016 }
cb6710a4 2017 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
6fc6879b
JM		 2018 break;
2019 case EVENT_INTERFACE_REMOVED:
f049052b 2020 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
6fc6879b
JM		 2021 wpa_s->interface_removed = 1;
2022 wpa_supplicant_mark_disassoc(wpa_s);
cb6710a4 2023 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
6fc6879b
JM		 2024 l2_packet_deinit(wpa_s->l2);
2025 wpa_s->l2 = NULL;
ea244d21 2026#ifdef CONFIG_IBSS_RSN
78177a00
JM		 2027 ibss_rsn_deinit(wpa_s->ibss_rsn);
2028 wpa_s->ibss_rsn = NULL;
ea244d21 2029#endif /* CONFIG_IBSS_RSN */
a83d9c96
SL		 2030#ifdef CONFIG_TERMINATE_ONLASTIF
2031 /* check if last interface */
2032 if (!any_interfaces(wpa_s->global->ifaces))
2033 eloop_terminate();
2034#endif /* CONFIG_TERMINATE_ONLASTIF */
6fc6879b
JM		 2035 break;
2036 }
2037}
2038
2039
2040#ifdef CONFIG_PEERKEY
2041static void
2042wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2043 union wpa_event_data *data)
2044{
2045 if (data == NULL)
2046 return;
2047 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2048}
2049#endif /* CONFIG_PEERKEY */
2050
2051
281ff0aa
GP		 2052#ifdef CONFIG_TDLS
2053static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2054 union wpa_event_data *data)
2055{
2056 if (data == NULL)
2057 return;
2058 switch (data->tdls.oper) {
2059 case TDLS_REQUEST_SETUP:
2060 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2061 break;
2062 case TDLS_REQUEST_TEARDOWN:
7de27409
AN		 2063 wpa_tdls_send_teardown(wpa_s->wpa, data->tdls.peer,
2064 data->tdls.reason_code);
281ff0aa
GP		 2065 break;
2066 }
2067}
2068#endif /* CONFIG_TDLS */
2069
2070
75cad1a0
XC		 2071#ifdef CONFIG_IEEE80211V
2072static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2073 union wpa_event_data *data)
2074{
2075 if (data == NULL)
2076 return;
2077 switch (data->wnm.oper) {
2078 case WNM_OPER_SLEEP:
2079 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2080 "(action=%d, intval=%d)",
2081 data->wnm.sleep_action, data->wnm.sleep_intval);
2082 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2083 data->wnm.sleep_intval);
2084 break;
2085 }
2086}
2087#endif /* CONFIG_IEEE80211V */
2088
2089
6fc6879b
JM		 2090#ifdef CONFIG_IEEE80211R
2091static void
2092wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2093 union wpa_event_data *data)
2094{
2095 if (data == NULL)
2096 return;
2097
2098 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2099 data->ft_ies.ies_len,
2100 data->ft_ies.ft_action,
babfbf15
JM		 2101 data->ft_ies.target_ap,
2102 data->ft_ies.ric_ies,
2103 data->ft_ies.ric_ies_len) < 0) {
6fc6879b
JM		 2104 /* TODO: prevent MLME/driver from trying to associate? */
2105 }
2106}
2107#endif /* CONFIG_IEEE80211R */
2108
2109
11ef8d35
JM		 2110#ifdef CONFIG_IBSS_RSN
2111static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2112 union wpa_event_data *data)
2113{
df4bc509 2114 struct wpa_ssid *ssid;
df418245
XC		 2115 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2116 return;
11ef8d35
JM		 2117 if (data == NULL)
2118 return;
df4bc509
JM		 2119 ssid = wpa_s->current_ssid;
2120 if (ssid == NULL)
2121 return;
2122 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2123 return;
2124
11ef8d35
JM		 2125 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2126}
2127#endif /* CONFIG_IBSS_RSN */
2128
2129
036f7c4a
JM		 2130#ifdef CONFIG_IEEE80211R
2131static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2132 size_t len)
2133{
2134 const u8 *sta_addr, *target_ap_addr;
2135 u16 status;
2136
2137 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2138 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2139 return; /* only SME case supported for now */
2140 if (len < 1 + 2 * ETH_ALEN + 2)
2141 return;
2142 if (data[0] != 2)
2143 return; /* Only FT Action Response is supported for now */
2144 sta_addr = data + 1;
2145 target_ap_addr = data + 1 + ETH_ALEN;
2146 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
f049052b
BG		 2147 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2148 MACSTR " TargetAP " MACSTR " status %u",
2149 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
036f7c4a
JM		 2150
2151 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
f049052b
BG		 2152 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2153 " in FT Action Response", MAC2STR(sta_addr));
036f7c4a
JM		 2154 return;
2155 }
2156
2157 if (status) {
f049052b
BG		 2158 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2159 "failure (status code %d)", status);
036f7c4a
JM		 2160 /* TODO: report error to FT code(?) */
2161 return;
2162 }
2163
2164 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2165 len - (1 + 2 * ETH_ALEN + 2), 1,
2166 target_ap_addr, NULL, 0) < 0)
2167 return;
2168
fe191985
JM		 2169#ifdef CONFIG_SME
2170 {
2171 struct wpa_bss *bss;
2172 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2173 if (bss)
2174 wpa_s->sme.freq = bss->freq;
62c72d72 2175 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
fe191985
JM		 2176 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2177 WLAN_AUTH_FT);
2178 }
2179#endif /* CONFIG_SME */
036f7c4a
JM		 2180}
2181#endif /* CONFIG_IEEE80211R */
2182
2183
7d878ca7
JM		 2184static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2185 struct unprot_deauth *e)
2186{
2187#ifdef CONFIG_IEEE80211W
2188 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2189 "dropped: " MACSTR " -> " MACSTR
2190 " (reason code %u)",
2191 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2192 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2193#endif /* CONFIG_IEEE80211W */
2194}
2195
2196
2197static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2198 struct unprot_disassoc *e)
2199{
2200#ifdef CONFIG_IEEE80211W
2201 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2202 "dropped: " MACSTR " -> " MACSTR
2203 " (reason code %u)",
2204 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2205 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2206#endif /* CONFIG_IEEE80211W */
2207}
2208
2209
71269b37
JM		 2210static void wnm_action_rx(struct wpa_supplicant *wpa_s, struct rx_action *rx)
2211{
2212 u8 action, mode;
2213 const u8 *pos, *end;
2214
2215 if (rx->data == NULL || rx->len == 0)
2216 return;
2217
2218 pos = rx->data;
2219 end = pos + rx->len;
2220 action = *pos++;
2221
2222 wpa_printf(MSG_DEBUG, "WNM: RX action %u from " MACSTR,
2223 action, MAC2STR(rx->sa));
2224 switch (action) {
2225 case WNM_BSS_TRANS_MGMT_REQ:
2226 if (pos + 5 > end)
2227 break;
2228 wpa_printf(MSG_DEBUG, "WNM: BSS Transition Management "
2229 "Request: dialog_token=%u request_mode=0x%x "
2230 "disassoc_timer=%u validity_interval=%u",
2231 pos[0], pos[1], WPA_GET_LE16(pos + 2), pos[4]);
2232 mode = pos[1];
2233 pos += 5;
2234 if (mode & 0x08)
2235 pos += 12; /* BSS Termination Duration */
2236 if (mode & 0x10) {
2237 char url[256];
2238 if (pos + 1 > end || pos + 1 + pos[0] > end) {
2239 wpa_printf(MSG_DEBUG, "WNM: Invalid BSS "
2240 "Transition Management Request "
2241 "(URL)");
2242 break;
2243 }
2244 os_memcpy(url, pos + 1, pos[0]);
2245 url[pos[0]] = '\0';
2246 wpa_msg(wpa_s, MSG_INFO, "WNM: ESS Disassociation "
2247 "Imminent - session_info_url=%s", url);
2248 }
2249 break;
2250 }
2251}
2252
2253
9646a8ab 2254void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
6fc6879b
JM		 2255 union wpa_event_data *data)
2256{
2257 struct wpa_supplicant *wpa_s = ctx;
0544b242 2258 u16 reason_code = 0;
3d9975d5 2259 int locally_generated = 0;
6fc6879b 2260
8401a6b0
JM		 2261 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
2262 event != EVENT_INTERFACE_ENABLED &&
9b6f44cb
JM		 2263 event != EVENT_INTERFACE_STATUS &&
2264 event != EVENT_SCHED_SCAN_STOPPED) {
6c3771d7
BG		 2265 wpa_dbg(wpa_s, MSG_DEBUG,
2266 "Ignore event %s (%d) while interface is disabled",
2267 event_to_string(event), event);
8401a6b0
JM		 2268 return;
2269 }
2270
74781dfc
JM		 2271#ifndef CONFIG_NO_STDOUT_DEBUG
2272{
2273 int level = MSG_DEBUG;
2274
eab6f5e0 2275 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
74781dfc
JM		 2276 const struct ieee80211_hdr *hdr;
2277 u16 fc;
2278 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
2279 fc = le_to_host16(hdr->frame_control);
2280 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2281 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
2282 level = MSG_EXCESSIVE;
2283 }
2284
2285 wpa_dbg(wpa_s, level, "Event %s (%d) received",
6c3771d7 2286 event_to_string(event), event);
74781dfc
JM		 2287}
2288#endif /* CONFIG_NO_STDOUT_DEBUG */
9b7124b2 2289
6fc6879b 2290 switch (event) {
c2a04078
JM		 2291 case EVENT_AUTH:
2292 sme_event_auth(wpa_s, data);
2293 break;
6fc6879b
JM		 2294 case EVENT_ASSOC:
2295 wpa_supplicant_event_assoc(wpa_s, data);
2296 break;
2297 case EVENT_DISASSOC:
f049052b 2298 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2e75a2b3 2299 if (data) {
3d9975d5
JM		 2300 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2301 data->disassoc_info.reason_code,
2302 data->disassoc_info.locally_generated ?
2303 " (locally generated)" : "");
2e75a2b3 2304 if (data->disassoc_info.addr)
f049052b
BG		 2305 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2306 MAC2STR(data->disassoc_info.addr));
2e75a2b3 2307 }
1d041bec 2308#ifdef CONFIG_AP
7f542069 2309 if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
1d041bec
JM		 2310 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2311 data->disassoc_info.addr);
2312 break;
2313 }
4551dd90
JM		 2314 if (wpa_s->ap_iface) {
2315 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in "
2316 "AP mode");
2317 break;
2318 }
1d041bec 2319#endif /* CONFIG_AP */
9fdd0fad
JM		 2320 if (data) {
2321 reason_code = data->disassoc_info.reason_code;
3d9975d5
JM		 2322 locally_generated =
2323 data->disassoc_info.locally_generated;
9fdd0fad
JM		 2324 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2325 data->disassoc_info.ie,
2326 data->disassoc_info.ie_len);
2327#ifdef CONFIG_P2P
2328 wpas_p2p_disassoc_notif(
2329 wpa_s, data->disassoc_info.addr, reason_code,
2330 data->disassoc_info.ie,
3fc14102
JM		 2331 data->disassoc_info.ie_len,
2332 locally_generated);
9fdd0fad
JM		 2333#endif /* CONFIG_P2P */
2334 }
0e379654
JM		 2335 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2336 sme_event_disassoc(wpa_s, data);
a84ed99e
JM		 2337 /* fall through */
2338 case EVENT_DEAUTH:
0544b242 2339 if (event == EVENT_DEAUTH) {
f049052b
BG		 2340 wpa_dbg(wpa_s, MSG_DEBUG,
2341 "Deauthentication notification");
2e75a2b3 2342 if (data) {
0544b242 2343 reason_code = data->deauth_info.reason_code;
3d9975d5
JM		 2344 locally_generated =
2345 data->deauth_info.locally_generated;
2346 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2347 data->deauth_info.reason_code,
2348 data->deauth_info.locally_generated ?
2349 " (locally generated)" : "");
2e75a2b3 2350 if (data->deauth_info.addr) {
f049052b
BG		 2351 wpa_dbg(wpa_s, MSG_DEBUG, " * address "
2352 MACSTR,
2353 MAC2STR(data->deauth_info.
2354 addr));
2e75a2b3 2355 }
9fdd0fad
JM		 2356 wpa_hexdump(MSG_DEBUG,
2357 "Deauthentication frame IE(s)",
2358 data->deauth_info.ie,
2359 data->deauth_info.ie_len);
2e75a2b3 2360 }
0544b242 2361 }
1d041bec 2362#ifdef CONFIG_AP
7f542069 2363 if (wpa_s->ap_iface && data && data->deauth_info.addr) {
1d041bec
JM		 2364 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2365 data->deauth_info.addr);
2366 break;
2367 }
4551dd90
JM		 2368 if (wpa_s->ap_iface) {
2369 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in "
2370 "AP mode");
2371 break;
2372 }
1d041bec 2373#endif /* CONFIG_AP */
3d9975d5
JM		 2374 wpa_supplicant_event_disassoc(wpa_s, reason_code,
2375 locally_generated);
00e5e3d5
JM		 2376 if (reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
2377 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
2378 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
2379 eapol_sm_failed(wpa_s->eapol)))
2380 wpas_auth_failed(wpa_s);
3fc14102
JM		 2381#ifdef CONFIG_P2P
2382 if (event == EVENT_DEAUTH && data) {
0aadd568
JM		 2383 if (wpas_p2p_deauth_notif(wpa_s,
2384 data->deauth_info.addr,
2385 reason_code,
2386 data->deauth_info.ie,
2387 data->deauth_info.ie_len,
2388 locally_generated) > 0) {
2389 /*
2390 * The interface was removed, so cannot
2391 * continue processing any additional
2392 * operations after this.
2393 */
2394 break;
2395 }
3fc14102
JM		 2396 }
2397#endif /* CONFIG_P2P */
0aadd568
JM		 2398 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
2399 locally_generated);
6fc6879b
JM		 2400 break;
2401 case EVENT_MICHAEL_MIC_FAILURE:
2402 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
2403 break;
2404#ifndef CONFIG_NO_SCAN_PROCESSING
2405 case EVENT_SCAN_RESULTS:
8d923a4a 2406 wpa_supplicant_event_scan_results(wpa_s, data);
99fcd404
JM		 2407#ifdef CONFIG_P2P
2408 if (wpa_s->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
2409 wpa_s->global->p2p != NULL &&
2410 wpa_s->wpa_state != WPA_AUTHENTICATING &&
2411 wpa_s->wpa_state != WPA_ASSOCIATING) {
2412 wpa_s->p2p_cb_on_scan_complete = 0;
2413 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
2414 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
2415 "continued after scan result processing");
2416 }
2417 }
2418#endif /* CONFIG_P2P */
6fc6879b
JM		 2419 break;
2420#endif /* CONFIG_NO_SCAN_PROCESSING */
2421 case EVENT_ASSOCINFO:
2422 wpa_supplicant_event_associnfo(wpa_s, data);
2423 break;
2424 case EVENT_INTERFACE_STATUS:
2425 wpa_supplicant_event_interface_status(wpa_s, data);
2426 break;
2427 case EVENT_PMKID_CANDIDATE:
2428 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
2429 break;
2430#ifdef CONFIG_PEERKEY
2431 case EVENT_STKSTART:
2432 wpa_supplicant_event_stkstart(wpa_s, data);
2433 break;
2434#endif /* CONFIG_PEERKEY */
281ff0aa
GP		 2435#ifdef CONFIG_TDLS
2436 case EVENT_TDLS:
2437 wpa_supplicant_event_tdls(wpa_s, data);
2438 break;
2439#endif /* CONFIG_TDLS */
75cad1a0
XC		 2440#ifdef CONFIG_IEEE80211V
2441 case EVENT_WNM:
2442 wpa_supplicant_event_wnm(wpa_s, data);
2443 break;
2444#endif /* CONFIG_IEEE80211V */
6fc6879b
JM		 2445#ifdef CONFIG_IEEE80211R
2446 case EVENT_FT_RESPONSE:
2447 wpa_supplicant_event_ft_response(wpa_s, data);
2448 break;
2449#endif /* CONFIG_IEEE80211R */
11ef8d35
JM		 2450#ifdef CONFIG_IBSS_RSN
2451 case EVENT_IBSS_RSN_START:
2452 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
2453 break;
2454#endif /* CONFIG_IBSS_RSN */
efa46078 2455 case EVENT_ASSOC_REJECT:
c05d6d18
JM		 2456 if (data->assoc_reject.bssid)
2457 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2458 "bssid=" MACSTR " status_code=%u",
2459 MAC2STR(data->assoc_reject.bssid),
2460 data->assoc_reject.status_code);
2461 else
2462 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2463 "status_code=%u",
2464 data->assoc_reject.status_code);
ea78c315
JM		 2465 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2466 sme_event_assoc_reject(wpa_s, data);
efa46078 2467 break;
da1fb17c 2468 case EVENT_AUTH_TIMED_OUT:
ea78c315
JM		 2469 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2470 sme_event_auth_timed_out(wpa_s, data);
da1fb17c
JM		 2471 break;
2472 case EVENT_ASSOC_TIMED_OUT:
ea78c315
JM		 2473 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2474 sme_event_assoc_timed_out(wpa_s, data);
da1fb17c 2475 break;
f8b1f695 2476 case EVENT_TX_STATUS:
f049052b
BG		 2477 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
2478 " type=%d stype=%d",
2479 MAC2STR(data->tx_status.dst),
2480 data->tx_status.type, data->tx_status.stype);
24f6497c 2481#ifdef CONFIG_AP
9bae1be0 2482 if (wpa_s->ap_iface == NULL) {
24f6497c 2483#ifdef CONFIG_OFFCHANNEL
9bae1be0
JM		 2484 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2485 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
24f6497c 2486 offchannel_send_action_tx_status(
9bae1be0
JM		 2487 wpa_s, data->tx_status.dst,
2488 data->tx_status.data,
2489 data->tx_status.data_len,
93b7ddd0 2490 data->tx_status.ack ?
24f6497c
JM		 2491 OFFCHANNEL_SEND_ACTION_SUCCESS :
2492 OFFCHANNEL_SEND_ACTION_NO_ACK);
2493#endif /* CONFIG_OFFCHANNEL */
9bae1be0
JM		 2494 break;
2495 }
24f6497c
JM		 2496#endif /* CONFIG_AP */
2497#ifdef CONFIG_OFFCHANNEL
f049052b
BG		 2498 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
2499 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
9bae1be0
JM		 2500 /*
2501 * Catch TX status events for Action frames we sent via group
2502 * interface in GO mode.
2503 */
2504 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2505 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
2506 os_memcmp(wpa_s->parent->pending_action_dst,
2507 data->tx_status.dst, ETH_ALEN) == 0) {
24f6497c 2508 offchannel_send_action_tx_status(
9bae1be0
JM		 2509 wpa_s->parent, data->tx_status.dst,
2510 data->tx_status.data,
2511 data->tx_status.data_len,
1d39378a 2512 data->tx_status.ack ?
24f6497c
JM		 2513 OFFCHANNEL_SEND_ACTION_SUCCESS :
2514 OFFCHANNEL_SEND_ACTION_NO_ACK);
f8b1f695 2515 break;
9bae1be0 2516 }
24f6497c
JM		 2517#endif /* CONFIG_OFFCHANNEL */
2518#ifdef CONFIG_AP
f8b1f695
JM		 2519 switch (data->tx_status.type) {
2520 case WLAN_FC_TYPE_MGMT:
2521 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
2522 data->tx_status.data_len,
2523 data->tx_status.stype,
2524 data->tx_status.ack);
2525 break;
2526 case WLAN_FC_TYPE_DATA:
2527 ap_tx_status(wpa_s, data->tx_status.dst,
2528 data->tx_status.data,
2529 data->tx_status.data_len,
2530 data->tx_status.ack);
2531 break;
2532 }
24f6497c 2533#endif /* CONFIG_AP */
f8b1f695 2534 break;
24f6497c 2535#ifdef CONFIG_AP
dd840f79
JB		 2536 case EVENT_EAPOL_TX_STATUS:
2537 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
2538 data->eapol_tx_status.data,
2539 data->eapol_tx_status.data_len,
2540 data->eapol_tx_status.ack);
2541 break;
bcf24348
JB		 2542 case EVENT_DRIVER_CLIENT_POLL_OK:
2543 ap_client_poll_ok(wpa_s, data->client_poll.addr);
2544 break;
f8b1f695
JM		 2545 case EVENT_RX_FROM_UNKNOWN:
2546 if (wpa_s->ap_iface == NULL)
2547 break;
9b90955e
JB		 2548 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
2549 data->rx_from_unknown.wds);
f8b1f695 2550 break;
1b487b8b
TP		 2551 case EVENT_CH_SWITCH:
2552 if (!data)
2553 break;
2554 if (!wpa_s->ap_iface) {
2555 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch "
2556 "event in non-AP mode");
2557 break;
2558 }
2559
2560#ifdef CONFIG_AP
2561 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
2562 data->ch_switch.ht_enabled,
2563 data->ch_switch.ch_offset);
2564#endif /* CONFIG_AP */
2565 break;
2d43d37f
JB		 2566 case EVENT_RX_MGMT: {
2567 u16 fc, stype;
2568 const struct ieee80211_mgmt *mgmt;
2569
2570 mgmt = (const struct ieee80211_mgmt *)
2571 data->rx_mgmt.frame;
2572 fc = le_to_host16(mgmt->frame_control);
2573 stype = WLAN_FC_GET_STYPE(fc);
2574
9bae1be0
JM		 2575 if (wpa_s->ap_iface == NULL) {
2576#ifdef CONFIG_P2P
9bae1be0
JM		 2577 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2578 data->rx_mgmt.frame_len > 24) {
2579 const u8 *src = mgmt->sa;
2580 const u8 *ie = mgmt->u.probe_req.variable;
2581 size_t ie_len = data->rx_mgmt.frame_len -
2582 (mgmt->u.probe_req.variable -
2583 data->rx_mgmt.frame);
baf513d6
JB		 2584 wpas_p2p_probe_req_rx(
2585 wpa_s, src, mgmt->da,
2586 mgmt->bssid, ie, ie_len,
2587 data->rx_mgmt.ssi_signal);
9bae1be0
JM		 2588 break;
2589 }
2590#endif /* CONFIG_P2P */
f049052b
BG		 2591 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
2592 "management frame in non-AP mode");
f8b1f695 2593 break;
9bae1be0 2594 }
2d43d37f
JB		 2595
2596 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2597 data->rx_mgmt.frame_len > 24) {
2598 const u8 *ie = mgmt->u.probe_req.variable;
2599 size_t ie_len = data->rx_mgmt.frame_len -
2600 (mgmt->u.probe_req.variable -
2601 data->rx_mgmt.frame);
2602
2603 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
2604 mgmt->bssid, ie, ie_len,
2605 data->rx_mgmt.ssi_signal);
2d43d37f
JB		 2606 }
2607
2a8b7416 2608 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
f8b1f695 2609 break;
2d43d37f 2610 }
f8b1f695 2611#endif /* CONFIG_AP */
036f7c4a 2612 case EVENT_RX_ACTION:
f049052b
BG		 2613 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2614 " Category=%u DataLen=%d freq=%d MHz",
2615 MAC2STR(data->rx_action.sa),
2616 data->rx_action.category, (int) data->rx_action.len,
2617 data->rx_action.freq);
036f7c4a
JM		 2618#ifdef CONFIG_IEEE80211R
2619 if (data->rx_action.category == WLAN_ACTION_FT) {
2620 ft_rx_action(wpa_s, data->rx_action.data,
2621 data->rx_action.len);
2622 break;
2623 }
2624#endif /* CONFIG_IEEE80211R */
7d878ca7
JM		 2625#ifdef CONFIG_IEEE80211W
2626#ifdef CONFIG_SME
2627 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) {
2628 sme_sa_query_rx(wpa_s, data->rx_action.sa,
2629 data->rx_action.data,
2630 data->rx_action.len);
2631 break;
2632 }
2633#endif /* CONFIG_SME */
2634#endif /* CONFIG_IEEE80211W */
75cad1a0
XC		 2635#ifdef CONFIG_IEEE80211V
2636 if (data->rx_action.category == WLAN_ACTION_WNM) {
2637 ieee802_11_rx_wnm_action(wpa_s, &data->rx_action);
2638 break;
2639 }
2640#endif /* CONFIG_IEEE80211V */
04ea7b79
JM		 2641#ifdef CONFIG_GAS
2642 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2643 gas_query_rx(wpa_s->gas, data->rx_action.da,
2644 data->rx_action.sa, data->rx_action.bssid,
2645 data->rx_action.data, data->rx_action.len,
2646 data->rx_action.freq) == 0)
2647 break;
2648#endif /* CONFIG_GAS */
71269b37
JM		 2649 if (data->rx_action.category == WLAN_ACTION_WNM) {
2650 wnm_action_rx(wpa_s, &data->rx_action);
2651 break;
2652 }
35287637
AN		 2653#ifdef CONFIG_TDLS
2654 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2655 data->rx_action.len >= 4 &&
2656 data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
2657 wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery "
2658 "Response from " MACSTR,
2659 MAC2STR(data->rx_action.sa));
2660 break;
2661 }
2662#endif /* CONFIG_TDLS */
9bae1be0
JM		 2663#ifdef CONFIG_P2P
2664 wpas_p2p_rx_action(wpa_s, data->rx_action.da,
2665 data->rx_action.sa,
2666 data->rx_action.bssid,
2667 data->rx_action.category,
2668 data->rx_action.data,
2669 data->rx_action.len, data->rx_action.freq);
e67b55fb
JM		 2670#endif /* CONFIG_P2P */
2671 break;
2672 case EVENT_RX_PROBE_REQ:
b211f3eb
JM		 2673 if (data->rx_probe_req.sa == NULL ||
2674 data->rx_probe_req.ie == NULL)
2675 break;
e67b55fb
JM		 2676#ifdef CONFIG_AP
2677 if (wpa_s->ap_iface) {
2678 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
2679 data->rx_probe_req.sa,
04a85e44
JM		 2680 data->rx_probe_req.da,
2681 data->rx_probe_req.bssid,
e67b55fb 2682 data->rx_probe_req.ie,
baf513d6
JB		 2683 data->rx_probe_req.ie_len,
2684 data->rx_probe_req.ssi_signal);
e67b55fb
JM		 2685 break;
2686 }
2687#endif /* CONFIG_AP */
2688#ifdef CONFIG_P2P
2689 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
04a85e44
JM		 2690 data->rx_probe_req.da,
2691 data->rx_probe_req.bssid,
e67b55fb 2692 data->rx_probe_req.ie,
baf513d6
JB		 2693 data->rx_probe_req.ie_len,
2694 data->rx_probe_req.ssi_signal);
9bae1be0 2695#endif /* CONFIG_P2P */
036f7c4a 2696 break;
9bae1be0 2697 case EVENT_REMAIN_ON_CHANNEL:
24f6497c
JM		 2698#ifdef CONFIG_OFFCHANNEL
2699 offchannel_remain_on_channel_cb(
2700 wpa_s, data->remain_on_channel.freq,
2701 data->remain_on_channel.duration);
2702#endif /* CONFIG_OFFCHANNEL */
2703#ifdef CONFIG_P2P
9bae1be0
JM		 2704 wpas_p2p_remain_on_channel_cb(
2705 wpa_s, data->remain_on_channel.freq,
2706 data->remain_on_channel.duration);
24f6497c 2707#endif /* CONFIG_P2P */
9bae1be0
JM		 2708 break;
2709 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
24f6497c
JM		 2710#ifdef CONFIG_OFFCHANNEL
2711 offchannel_cancel_remain_on_channel_cb(
2712 wpa_s, data->remain_on_channel.freq);
2713#endif /* CONFIG_OFFCHANNEL */
2714#ifdef CONFIG_P2P
9bae1be0
JM		 2715 wpas_p2p_cancel_remain_on_channel_cb(
2716 wpa_s, data->remain_on_channel.freq);
24f6497c 2717#endif /* CONFIG_P2P */
9bae1be0 2718 break;
24f6497c 2719#ifdef CONFIG_P2P
c5db8e51
KRK		 2720 case EVENT_P2P_DEV_FOUND: {
2721 struct p2p_peer_info peer_info;
2722
2723 os_memset(&peer_info, 0, sizeof(peer_info));
2724 if (data->p2p_dev_found.dev_addr)
2725 os_memcpy(peer_info.p2p_device_addr,
2726 data->p2p_dev_found.dev_addr, ETH_ALEN);
2727 if (data->p2p_dev_found.pri_dev_type)
2728 os_memcpy(peer_info.pri_dev_type,
2729 data->p2p_dev_found.pri_dev_type,
2730 sizeof(peer_info.pri_dev_type));
2731 if (data->p2p_dev_found.dev_name)
2732 os_strlcpy(peer_info.device_name,
2733 data->p2p_dev_found.dev_name,
2734 sizeof(peer_info.device_name));
2735 peer_info.config_methods = data->p2p_dev_found.config_methods;
2736 peer_info.dev_capab = data->p2p_dev_found.dev_capab;
2737 peer_info.group_capab = data->p2p_dev_found.group_capab;
2738
8fd7dc1b
JB		 2739 /*
2740 * FIX: new_device=1 is not necessarily correct. We should
2741 * maintain a P2P peer database in wpa_supplicant and update
2742 * this information based on whether the peer is truly new.
2743 */
2744 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1);
3ac17eba 2745 break;
c5db8e51 2746 }
3ac17eba
JM		 2747 case EVENT_P2P_GO_NEG_REQ_RX:
2748 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src,
2749 data->p2p_go_neg_req_rx.dev_passwd_id);
2750 break;
2751 case EVENT_P2P_GO_NEG_COMPLETED:
2752 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res);
2753 break;
2754 case EVENT_P2P_PROV_DISC_REQUEST:
2755 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer,
2756 data->p2p_prov_disc_req.config_methods,
2757 data->p2p_prov_disc_req.dev_addr,
2758 data->p2p_prov_disc_req.pri_dev_type,
2759 data->p2p_prov_disc_req.dev_name,
2760 data->p2p_prov_disc_req.supp_config_methods,
2761 data->p2p_prov_disc_req.dev_capab,
c3f42784
JM		 2762 data->p2p_prov_disc_req.group_capab,
2763 NULL, 0);
3ac17eba
JM		 2764 break;
2765 case EVENT_P2P_PROV_DISC_RESPONSE:
2766 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer,
2767 data->p2p_prov_disc_resp.config_methods);
2768 break;
2769 case EVENT_P2P_SD_REQUEST:
2770 wpas_sd_request(wpa_s, data->p2p_sd_req.freq,
2771 data->p2p_sd_req.sa,
2772 data->p2p_sd_req.dialog_token,
2773 data->p2p_sd_req.update_indic,
2774 data->p2p_sd_req.tlvs,
2775 data->p2p_sd_req.tlvs_len);
2776 break;
2777 case EVENT_P2P_SD_RESPONSE:
2778 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa,
2779 data->p2p_sd_resp.update_indic,
2780 data->p2p_sd_resp.tlvs,
2781 data->p2p_sd_resp.tlvs_len);
2782 break;
9bae1be0 2783#endif /* CONFIG_P2P */
a8e0505b
JM		 2784 case EVENT_EAPOL_RX:
2785 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
2786 data->eapol_rx.data,
2787 data->eapol_rx.data_len);
2788 break;
e2f74005
JM		 2789 case EVENT_SIGNAL_CHANGE:
2790 bgscan_notify_signal_change(
60a972a6 2791 wpa_s, data->signal_change.above_threshold,
174fa789
PS		 2792 data->signal_change.current_signal,
2793 data->signal_change.current_noise,
2794 data->signal_change.current_txrate);
e2f74005 2795 break;
8401a6b0 2796 case EVENT_INTERFACE_ENABLED:
f049052b 2797 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
8401a6b0 2798 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
bfba8deb 2799 wpa_supplicant_update_mac_addr(wpa_s);
199716ad 2800#ifdef CONFIG_AP
9919f7a2
JB		 2801 if (!wpa_s->ap_iface) {
2802 wpa_supplicant_set_state(wpa_s,
2803 WPA_DISCONNECTED);
2804 wpa_supplicant_req_scan(wpa_s, 0, 0);
2805 } else
2806 wpa_supplicant_set_state(wpa_s,
2807 WPA_COMPLETED);
199716ad
BG		 2808#else /* CONFIG_AP */
2809 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2810 wpa_supplicant_req_scan(wpa_s, 0, 0);
2811#endif /* CONFIG_AP */
8401a6b0
JM		 2812 }
2813 break;
2814 case EVENT_INTERFACE_DISABLED:
f049052b 2815 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
8401a6b0
JM		 2816 wpa_supplicant_mark_disassoc(wpa_s);
2817 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2818 break;
b5c9da8d 2819 case EVENT_CHANNEL_LIST_CHANGED:
35c5d610
JM		 2820 if (wpa_s->drv_priv == NULL)
2821 break; /* Ignore event during drv initialization */
6979582c
JM		 2822
2823 free_hw_features(wpa_s);
2824 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(
2825 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags);
2826
b5c9da8d
JM		 2827#ifdef CONFIG_P2P
2828 wpas_p2p_update_channel_list(wpa_s);
c973f386
JM		 2829#endif /* CONFIG_P2P */
2830 break;
2831 case EVENT_INTERFACE_UNAVAILABLE:
2832#ifdef CONFIG_P2P
2833 wpas_p2p_interface_unavailable(wpa_s);
7cfc4ac3
AGS		 2834#endif /* CONFIG_P2P */
2835 break;
2836 case EVENT_BEST_CHANNEL:
f049052b
BG		 2837 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
2838 "(%d %d %d)",
2839 data->best_chan.freq_24, data->best_chan.freq_5,
2840 data->best_chan.freq_overall);
7cfc4ac3
AGS		 2841 wpa_s->best_24_freq = data->best_chan.freq_24;
2842 wpa_s->best_5_freq = data->best_chan.freq_5;
2843 wpa_s->best_overall_freq = data->best_chan.freq_overall;
2844#ifdef CONFIG_P2P
2845 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
2846 data->best_chan.freq_5,
2847 data->best_chan.freq_overall);
b5c9da8d
JM		 2848#endif /* CONFIG_P2P */
2849 break;
7d878ca7
JM		 2850 case EVENT_UNPROT_DEAUTH:
2851 wpa_supplicant_event_unprot_deauth(wpa_s,
2852 &data->unprot_deauth);
2853 break;
2854 case EVENT_UNPROT_DISASSOC:
2855 wpa_supplicant_event_unprot_disassoc(wpa_s,
2856 &data->unprot_disassoc);
2857 break;
0d7e5a3a
JB		 2858 case EVENT_STATION_LOW_ACK:
2859#ifdef CONFIG_AP
2860 if (wpa_s->ap_iface && data)
2861 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
2862 data->low_ack.addr);
2863#endif /* CONFIG_AP */
8f15f711
AN		 2864#ifdef CONFIG_TDLS
2865 if (data)
2866 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr);
2867#endif /* CONFIG_TDLS */
0d7e5a3a 2868 break;
ea244d21
XC		 2869 case EVENT_IBSS_PEER_LOST:
2870#ifdef CONFIG_IBSS_RSN
2871 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
2872#endif /* CONFIG_IBSS_RSN */
2873 break;
b14a210c
JB		 2874 case EVENT_DRIVER_GTK_REKEY:
2875 if (os_memcmp(data->driver_gtk_rekey.bssid,
2876 wpa_s->bssid, ETH_ALEN))
2877 break;
2878 if (!wpa_s->wpa)
2879 break;
2880 wpa_sm_update_replay_ctr(wpa_s->wpa,
2881 data->driver_gtk_rekey.replay_ctr);
2882 break;
cbdf3507
LC		 2883 case EVENT_SCHED_SCAN_STOPPED:
2884 wpa_s->sched_scanning = 0;
2885 wpa_supplicant_notify_scanning(wpa_s, 0);
2886
9b6f44cb
JM		 2887 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
2888 break;
2889
cbdf3507
LC		 2890 /*
2891 * If we timed out, start a new sched scan to continue
2892 * searching for more SSIDs.
2893 */
2894 if (wpa_s->sched_scan_timed_out)
2895 wpa_supplicant_req_sched_scan(wpa_s);
2896 break;
783fcb7d
GG		 2897 case EVENT_WPS_BUTTON_PUSHED:
2898#ifdef CONFIG_WPS
2899 wpas_wps_start_pbc(wpa_s, NULL, 0);
2900#endif /* CONFIG_WPS */
2901 break;
6fc6879b 2902 default:
f049052b 2903 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
6fc6879b
JM		 2904 break;
2905 }
2906}
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