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Lower RX_MGMT driver event debug level for Beacon frames
[thirdparty/hostap.git] / wpa_supplicant / events.c
CommitLineData
6fc6879b
JM		 1/*
2 * WPA Supplicant - Driver event processing
16a83d29 3 * Copyright (c) 2003-2011, Jouni Malinen <j@w1.fi>
6fc6879b
JM		 4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 */
14
15#include "includes.h"
16
17#include "common.h"
18#include "eapol_supp/eapol_supp_sm.h"
3acb5005 19#include "rsn_supp/wpa.h"
6fc6879b 20#include "eloop.h"
6fc6879b
JM		 21#include "config.h"
22#include "l2_packet/l2_packet.h"
23#include "wpa_supplicant_i.h"
2d5b792d 24#include "driver_i.h"
6fc6879b 25#include "pcsc_funcs.h"
3acb5005
JM		 26#include "rsn_supp/preauth.h"
27#include "rsn_supp/pmksa_cache.h"
90973fb2 28#include "common/wpa_ctrl.h"
6fc6879b 29#include "eap_peer/eap.h"
1d041bec 30#include "ap/hostapd.h"
93b7ddd0 31#include "p2p/p2p.h"
8bac466b 32#include "notify.h"
90973fb2 33#include "common/ieee802_11_defs.h"
54f489be 34#include "common/ieee802_11_common.h"
bbb921da 35#include "crypto/random.h"
6fc6879b
JM		 36#include "blacklist.h"
37#include "wpas_glue.h"
351f09a2 38#include "wps_supplicant.h"
11ef8d35 39#include "ibss_rsn.h"
c2a04078 40#include "sme.h"
04ea7b79 41#include "gas_query.h"
9bae1be0 42#include "p2p_supplicant.h"
60b94c98 43#include "bgscan.h"
f8b1f695 44#include "ap.h"
6fa81a3b 45#include "bss.h"
9ba9fa07 46#include "scan.h"
24f6497c 47#include "offchannel.h"
6fc6879b
JM		 48
49
50static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
51{
8bac466b 52 struct wpa_ssid *ssid, *old_ssid;
6fc6879b
JM		 53
54 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
55 return 0;
56
f049052b
BG		 57 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
58 "information");
6fc6879b
JM		 59 ssid = wpa_supplicant_get_ssid(wpa_s);
60 if (ssid == NULL) {
f049052b
BG		 61 wpa_msg(wpa_s, MSG_INFO,
62 "No network configuration found for the current AP");
6fc6879b
JM		 63 return -1;
64 }
65
66 if (ssid->disabled) {
f049052b 67 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
6fc6879b
JM		 68 return -1;
69 }
70
f049052b
BG		 71 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
72 "current AP");
0bf927a0 73 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
6fc6879b
JM		 74 u8 wpa_ie[80];
75 size_t wpa_ie_len = sizeof(wpa_ie);
76 wpa_supplicant_set_suites(wpa_s, NULL, ssid,
77 wpa_ie, &wpa_ie_len);
78 } else {
79 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
80 }
81
82 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
83 eapol_sm_invalidate_cached_session(wpa_s->eapol);
8bac466b 84 old_ssid = wpa_s->current_ssid;
6fc6879b
JM		 85 wpa_s->current_ssid = ssid;
86 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
87 wpa_supplicant_initiate_eapol(wpa_s);
8bac466b
JM		 88 if (old_ssid != wpa_s->current_ssid)
89 wpas_notify_network_changed(wpa_s);
6fc6879b
JM		 90
91 return 0;
92}
93
94
01a17491 95void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
6fc6879b
JM		 96{
97 struct wpa_supplicant *wpa_s = eloop_ctx;
98
99 if (wpa_s->countermeasures) {
100 wpa_s->countermeasures = 0;
101 wpa_drv_set_countermeasures(wpa_s, 0);
102 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
103 wpa_supplicant_req_scan(wpa_s, 0, 0);
104 }
105}
106
107
108void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
109{
8bac466b
JM		 110 int bssid_changed;
111
78177a00
JM		 112#ifdef CONFIG_IBSS_RSN
113 ibss_rsn_deinit(wpa_s->ibss_rsn);
114 wpa_s->ibss_rsn = NULL;
115#endif /* CONFIG_IBSS_RSN */
116
ca62e114
JM		 117#ifdef CONFIG_AP
118 wpa_supplicant_ap_deinit(wpa_s);
119#endif /* CONFIG_AP */
120
8401a6b0
JM		 121 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
122 return;
123
6fc6879b 124 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
8bac466b 125 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
6fc6879b
JM		 126 os_memset(wpa_s->bssid, 0, ETH_ALEN);
127 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
be8be671 128 wpa_s->current_bss = NULL;
3c85f144 129 wpa_s->assoc_freq = 0;
8fd0f0f3
HW		 130#ifdef CONFIG_IEEE80211R
131#ifdef CONFIG_SME
132 if (wpa_s->sme.ft_ies)
133 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
134#endif /* CONFIG_SME */
135#endif /* CONFIG_IEEE80211R */
136
8bac466b
JM		 137 if (bssid_changed)
138 wpas_notify_bssid_changed(wpa_s);
139
6fc6879b
JM		 140 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
141 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
56586197 142 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
6fc6879b
JM		 143 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
144 wpa_s->ap_ies_from_associnfo = 0;
145}
146
147
148static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
149{
150 struct wpa_ie_data ie;
151 int pmksa_set = -1;
152 size_t i;
153
154 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
155 ie.pmkid == NULL)
156 return;
157
158 for (i = 0; i < ie.num_pmkid; i++) {
159 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
160 ie.pmkid + i * PMKID_LEN,
161 NULL, NULL, 0);
162 if (pmksa_set == 0) {
163 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
164 break;
165 }
166 }
167
f049052b
BG		 168 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
169 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
6fc6879b
JM		 170}
171
172
173static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
174 union wpa_event_data *data)
175{
176 if (data == NULL) {
f049052b
BG		 177 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
178 "event");
6fc6879b
JM		 179 return;
180 }
f049052b
BG		 181 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
182 " index=%d preauth=%d",
183 MAC2STR(data->pmkid_candidate.bssid),
184 data->pmkid_candidate.index,
185 data->pmkid_candidate.preauth);
6fc6879b
JM		 186
187 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
188 data->pmkid_candidate.index,
189 data->pmkid_candidate.preauth);
190}
191
192
193static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
194{
195 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
196 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
197 return 0;
198
199#ifdef IEEE8021X_EAPOL
200 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
201 wpa_s->current_ssid &&
202 !(wpa_s->current_ssid->eapol_flags &
203 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
204 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
205 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
206 * plaintext or static WEP keys). */
207 return 0;
208 }
209#endif /* IEEE8021X_EAPOL */
210
211 return 1;
212}
213
214
215/**
216 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
217 * @wpa_s: pointer to wpa_supplicant data
218 * @ssid: Configuration data for the network
219 * Returns: 0 on success, -1 on failure
220 *
221 * This function is called when starting authentication with a network that is
222 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
223 */
224int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
225 struct wpa_ssid *ssid)
226{
227#ifdef IEEE8021X_EAPOL
b832d34c 228#ifdef PCSC_FUNCS
6fc6879b
JM		 229 int aka = 0, sim = 0, type;
230
231 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
232 return 0;
233
234 if (ssid->eap.eap_methods == NULL) {
235 sim = 1;
236 aka = 1;
237 } else {
238 struct eap_method_type *eap = ssid->eap.eap_methods;
239 while (eap->vendor != EAP_VENDOR_IETF ||
240 eap->method != EAP_TYPE_NONE) {
241 if (eap->vendor == EAP_VENDOR_IETF) {
242 if (eap->method == EAP_TYPE_SIM)
243 sim = 1;
244 else if (eap->method == EAP_TYPE_AKA)
245 aka = 1;
246 }
247 eap++;
248 }
249 }
250
251 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
252 sim = 0;
253 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL)
254 aka = 0;
255
256 if (!sim && !aka) {
f049052b
BG		 257 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
258 "use SIM, but neither EAP-SIM nor EAP-AKA are "
259 "enabled");
6fc6879b
JM		 260 return 0;
261 }
262
f049052b
BG		 263 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
264 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
6fc6879b
JM		 265 if (sim && aka)
266 type = SCARD_TRY_BOTH;
267 else if (aka)
268 type = SCARD_USIM_ONLY;
269 else
270 type = SCARD_GSM_SIM_ONLY;
271
272 wpa_s->scard = scard_init(type);
273 if (wpa_s->scard == NULL) {
f049052b
BG		 274 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
275 "(pcsc-lite)");
6fc6879b
JM		 276 return -1;
277 }
278 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
279 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
b832d34c 280#endif /* PCSC_FUNCS */
6fc6879b
JM		 281#endif /* IEEE8021X_EAPOL */
282
283 return 0;
284}
285
286
287#ifndef CONFIG_NO_SCAN_PROCESSING
288static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
289 struct wpa_ssid *ssid)
290{
291 int i, privacy = 0;
292
293 if (ssid->mixed_cell)
294 return 1;
295
0632542b
AT		 296#ifdef CONFIG_WPS
297 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
298 return 1;
299#endif /* CONFIG_WPS */
300
6fc6879b
JM		 301 for (i = 0; i < NUM_WEP_KEYS; i++) {
302 if (ssid->wep_key_len[i]) {
303 privacy = 1;
304 break;
305 }
306 }
307#ifdef IEEE8021X_EAPOL
308 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
309 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
310 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
311 privacy = 1;
312#endif /* IEEE8021X_EAPOL */
313
29fbc522
JM		 314 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
315 privacy = 1;
316
6fc6879b
JM		 317 if (bss->caps & IEEE80211_CAP_PRIVACY)
318 return privacy;
319 return !privacy;
320}
321
322
a6099152
JM		 323static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
324 struct wpa_ssid *ssid,
6fc6879b
JM		 325 struct wpa_scan_res *bss)
326{
327 struct wpa_ie_data ie;
328 int proto_match = 0;
329 const u8 *rsn_ie, *wpa_ie;
351f09a2 330 int ret;
43882f1e 331 int wep_ok;
6fc6879b 332
a6099152 333 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
351f09a2
JM		 334 if (ret >= 0)
335 return ret;
ad08c363 336
43882f1e
JM		 337 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
338 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
339 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
340 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
341 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
342
6fc6879b
JM		 343 rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
344 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
345 proto_match++;
346
347 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
f049052b
BG		 348 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
349 "failed");
6fc6879b
JM		 350 break;
351 }
43882f1e
JM		 352
353 if (wep_ok &&
354 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
355 {
f049052b
BG		 356 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
357 "in RSN IE");
43882f1e
JM		 358 return 1;
359 }
360
6fc6879b 361 if (!(ie.proto & ssid->proto)) {
f049052b
BG		 362 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
363 "mismatch");
6fc6879b
JM		 364 break;
365 }
366
367 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
f049052b
BG		 368 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
369 "cipher mismatch");
6fc6879b
JM		 370 break;
371 }
372
373 if (!(ie.group_cipher & ssid->group_cipher)) {
f049052b
BG		 374 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
375 "cipher mismatch");
6fc6879b
JM		 376 break;
377 }
378
379 if (!(ie.key_mgmt & ssid->key_mgmt)) {
f049052b
BG		 380 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
381 "mismatch");
6fc6879b
JM		 382 break;
383 }
384
385#ifdef CONFIG_IEEE80211W
0b60b0aa 386 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
70f8cc8e 387 ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
f049052b
BG		 388 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
389 "frame protection");
6fc6879b
JM		 390 break;
391 }
392#endif /* CONFIG_IEEE80211W */
393
f049052b 394 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
6fc6879b
JM		 395 return 1;
396 }
397
398 wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
399 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
400 proto_match++;
401
402 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
f049052b
BG		 403 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
404 "failed");
6fc6879b
JM		 405 break;
406 }
43882f1e
JM		 407
408 if (wep_ok &&
409 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
410 {
f049052b
BG		 411 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
412 "in WPA IE");
43882f1e
JM		 413 return 1;
414 }
415
6fc6879b 416 if (!(ie.proto & ssid->proto)) {
f049052b
BG		 417 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
418 "mismatch");
6fc6879b
JM		 419 break;
420 }
421
422 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
f049052b
BG		 423 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
424 "cipher mismatch");
6fc6879b
JM		 425 break;
426 }
427
428 if (!(ie.group_cipher & ssid->group_cipher)) {
f049052b
BG		 429 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
430 "cipher mismatch");
6fc6879b
JM		 431 break;
432 }
433
434 if (!(ie.key_mgmt & ssid->key_mgmt)) {
f049052b
BG		 435 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
436 "mismatch");
6fc6879b
JM		 437 break;
438 }
439
f049052b 440 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
6fc6879b
JM		 441 return 1;
442 }
443
cc5e390d 444 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
df83fb7d 445 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
f049052b 446 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
cc5e390d
JM		 447 return 0;
448 }
6fc6879b 449
c2f1fe41
JM		 450 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
451 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
452 return 1;
453 }
454
455 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
456 "WPA/WPA2");
457
458 return 0;
6fc6879b
JM		 459}
460
461
b766a9a2
JM		 462static int freq_allowed(int *freqs, int freq)
463{
464 int i;
465
466 if (freqs == NULL)
467 return 1;
468
469 for (i = 0; freqs[i]; i++)
470 if (freqs[i] == freq)
471 return 1;
472 return 0;
473}
474
475
e1e8cae3
CL		 476static int ht_supported(const struct hostapd_hw_modes *mode)
477{
478 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) {
479 /*
480 * The driver did not indicate whether it supports HT. Assume
481 * it does to avoid connection issues.
482 */
483 return 1;
484 }
485
486 /*
487 * IEEE Std 802.11n-2009 20.1.1:
488 * An HT non-AP STA shall support all EQM rates for one spatial stream.
489 */
490 return mode->mcs_set[0] == 0xff;
491}
492
493
494static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_scan_res *bss)
495{
496 const struct hostapd_hw_modes *mode = NULL, *modes;
497 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
498 const u8 *rate_ie;
499 int i, j, k;
500
a6d94e1b
JM		 501 if (bss->freq == 0)
502 return 1; /* Cannot do matching without knowing band */
503
e1e8cae3
CL		 504 modes = wpa_s->hw.modes;
505 if (modes == NULL) {
506 /*
507 * The driver does not provide any additional information
508 * about the utilized hardware, so allow the connection attempt
509 * to continue.
510 */
511 return 1;
512 }
513
514 for (i = 0; i < wpa_s->hw.num_modes; i++) {
515 for (j = 0; j < modes[i].num_channels; j++) {
516 int freq = modes[i].channels[j].freq;
517 if (freq == bss->freq) {
518 if (mode &&
519 mode->mode == HOSTAPD_MODE_IEEE80211G)
520 break; /* do not allow 802.11b replace
521 * 802.11g */
522 mode = &modes[i];
523 break;
524 }
525 }
526 }
527
528 if (mode == NULL)
529 return 0;
530
531 for (i = 0; i < (int) sizeof(scan_ie); i++) {
532 rate_ie = wpa_scan_get_ie(bss, scan_ie[i]);
533 if (rate_ie == NULL)
534 continue;
535
536 for (j = 2; j < rate_ie[1] + 2; j++) {
537 int flagged = !!(rate_ie[j] & 0x80);
538 int r = (rate_ie[j] & 0x7f) * 5;
539
540 /*
541 * IEEE Std 802.11n-2009 7.3.2.2:
542 * The new BSS Membership selector value is encoded
543 * like a legacy basic rate, but it is not a rate and
544 * only indicates if the BSS members are required to
545 * support the mandatory features of Clause 20 [HT PHY]
546 * in order to join the BSS.
547 */
548 if (flagged && ((rate_ie[j] & 0x7f) ==
549 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
550 if (!ht_supported(mode)) {
551 wpa_dbg(wpa_s, MSG_DEBUG,
552 " hardware does not support "
553 "HT PHY");
554 return 0;
555 }
556 continue;
557 }
558
559 if (!flagged)
560 continue;
561
562 /* check for legacy basic rates */
563 for (k = 0; k < mode->num_rates; k++) {
564 if (mode->rates[k] == r)
565 break;
566 }
567 if (k == mode->num_rates) {
568 /*
569 * IEEE Std 802.11-2007 7.3.2.2 demands that in
570 * order to join a BSS all required rates
571 * have to be supported by the hardware.
572 */
573 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does "
574 "not support required rate %d.%d Mbps",
575 r / 10, r % 10);
576 return 0;
577 }
578 }
579 }
580
581 return 1;
582}
583
584
d8d940b7
JM		 585static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
586 int i, struct wpa_scan_res *bss,
587 struct wpa_ssid *group)
6fc6879b 588{
d8d940b7
JM		 589 const u8 *ssid_;
590 u8 wpa_ie_len, rsn_ie_len, ssid_len;
591 int wpa;
6fc6879b
JM		 592 struct wpa_blacklist *e;
593 const u8 *ie;
d8d940b7 594 struct wpa_ssid *ssid;
6fc6879b 595
d8d940b7
JM		 596 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
597 ssid_ = ie ? ie + 2 : (u8 *) "";
598 ssid_len = ie ? ie[1] : 0;
6fc6879b 599
d8d940b7
JM		 600 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
601 wpa_ie_len = ie ? ie[1] : 0;
6fc6879b 602
d8d940b7
JM		 603 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
604 rsn_ie_len = ie ? ie[1] : 0;
6fc6879b 605
f049052b
BG		 606 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
607 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
608 i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len),
609 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
610 wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
9cf32261 611
d8d940b7 612 e = wpa_blacklist_get(wpa_s, bss->bssid);
5471c343
JM		 613 if (e) {
614 int limit = 1;
615 if (wpa_supplicant_enabled_networks(wpa_s->conf) == 1) {
616 /*
617 * When only a single network is enabled, we can
618 * trigger blacklisting on the first failure. This
619 * should not be done with multiple enabled networks to
620 * avoid getting forced to move into a worse ESS on
621 * single error if there are no other BSSes of the
622 * current ESS.
623 */
624 limit = 0;
625 }
626 if (e->count > limit) {
f049052b
BG		 627 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
628 "(count=%d limit=%d)", e->count, limit);
c2197bc9 629 return NULL;
5471c343 630 }
d8d940b7 631 }
6fc6879b 632
d8d940b7 633 if (ssid_len == 0) {
f049052b 634 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
c2197bc9 635 return NULL;
d8d940b7 636 }
e81634cd 637
d8d940b7 638 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
6fc6879b 639
d8d940b7
JM		 640 for (ssid = group; ssid; ssid = ssid->pnext) {
641 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
ad08c363 642
d8d940b7 643 if (ssid->disabled) {
f049052b 644 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
0c703df3 645 continue;
d8d940b7 646 }
9cf32261 647
ad08c363 648#ifdef CONFIG_WPS
f648bc7d 649 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
f049052b
BG		 650 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
651 "(WPS)");
f648bc7d
JM		 652 continue;
653 }
654
d8d940b7
JM		 655 if (wpa && ssid->ssid_len == 0 &&
656 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
657 check_ssid = 0;
658
659 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
660 /* Only allow wildcard SSID match if an AP
661 * advertises active WPS operation that matches
662 * with our mode. */
663 check_ssid = 1;
ad08c363 664 if (ssid->ssid_len == 0 &&
a6099152 665 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
ad08c363 666 check_ssid = 0;
d8d940b7 667 }
ad08c363
JM		 668#endif /* CONFIG_WPS */
669
7d232e23
ZC		 670 if (ssid->bssid_set && ssid->ssid_len == 0 &&
671 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
672 check_ssid = 0;
673
d8d940b7
JM		 674 if (check_ssid &&
675 (ssid_len != ssid->ssid_len ||
676 os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
f049052b 677 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
0c703df3 678 continue;
6fc6879b 679 }
6fc6879b 680
d8d940b7
JM		 681 if (ssid->bssid_set &&
682 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
f049052b 683 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
0c703df3 684 continue;
d8d940b7 685 }
6fc6879b 686
cc5e390d 687 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
0c703df3 688 continue;
9cf32261 689
d8d940b7
JM		 690 if (!wpa &&
691 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
692 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
693 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
f049052b
BG		 694 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
695 "not allowed");
0c703df3 696 continue;
6fc6879b 697 }
9cf32261 698
29fbc522 699 if (!wpa_supplicant_match_privacy(bss, ssid)) {
f049052b
BG		 700 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
701 "mismatch");
0c703df3 702 continue;
e81634cd
JM		 703 }
704
29fbc522 705 if (bss->caps & IEEE80211_CAP_IBSS) {
f049052b
BG		 706 wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) "
707 "network");
0c703df3 708 continue;
d8d940b7 709 }
b766a9a2 710
d8d940b7 711 if (!freq_allowed(ssid->freq_list, bss->freq)) {
f049052b
BG		 712 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
713 "allowed");
0c703df3 714 continue;
6fc6879b 715 }
d8d940b7 716
e1e8cae3
CL		 717 if (!rate_match(wpa_s, bss)) {
718 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
719 "not match");
720 continue;
721 }
722
73e49269
JM		 723#ifdef CONFIG_P2P
724 /*
725 * TODO: skip the AP if its P2P IE has Group Formation
726 * bit set in the P2P Group Capability Bitmap and we
727 * are not in Group Formation with that device.
728 */
729#endif /* CONFIG_P2P */
730
d8d940b7
JM		 731 /* Matching configuration found */
732 return ssid;
6fc6879b
JM		 733 }
734
d8d940b7 735 /* No matching configuration found */
c2197bc9 736 return NULL;
9cf32261
JM		 737}
738
739
6fa81a3b 740static struct wpa_bss *
a1fd2ce5
JM		 741wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
742 struct wpa_scan_results *scan_res,
743 struct wpa_ssid *group,
9cf32261
JM		 744 struct wpa_ssid **selected_ssid)
745{
d8d940b7 746 size_t i;
9cf32261 747
f049052b
BG		 748 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
749 group->priority);
9cf32261 750
d8d940b7
JM		 751 for (i = 0; i < scan_res->num; i++) {
752 struct wpa_scan_res *bss = scan_res->res[i];
753 const u8 *ie, *ssid;
754 u8 ssid_len;
755
756 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
757 if (!*selected_ssid)
758 continue;
759
760 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
761 ssid = ie ? ie + 2 : (u8 *) "";
762 ssid_len = ie ? ie[1] : 0;
9cf32261 763
f049052b
BG		 764 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
765 " ssid='%s'",
766 MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len));
d8d940b7
JM		 767 return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len);
768 }
769
770 return NULL;
6fc6879b
JM		 771}
772
773
6fa81a3b 774static struct wpa_bss *
09b9df4e 775wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
a1fd2ce5 776 struct wpa_scan_results *scan_res,
09b9df4e 777 struct wpa_ssid **selected_ssid)
6fc6879b 778{
6fa81a3b 779 struct wpa_bss *selected = NULL;
09b9df4e
JM		 780 int prio;
781
782 while (selected == NULL) {
783 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
784 selected = wpa_supplicant_select_bss(
a1fd2ce5 785 wpa_s, scan_res, wpa_s->conf->pssid[prio],
09b9df4e
JM		 786 selected_ssid);
787 if (selected)
788 break;
789 }
790
791 if (selected == NULL && wpa_s->blacklist) {
f049052b
BG		 792 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
793 "blacklist and try again");
09b9df4e
JM		 794 wpa_blacklist_clear(wpa_s);
795 wpa_s->blacklist_cleared++;
796 } else if (selected == NULL)
797 break;
798 }
799
800 return selected;
801}
802
803
804static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
977b1174 805 int timeout_sec, int timeout_usec)
09b9df4e 806{
24f76940 807 if (!wpa_supplicant_enabled_networks(wpa_s->conf)) {
4f34d51a
SL		 808 /*
809 * No networks are enabled; short-circuit request so
810 * we don't wait timeout seconds before transitioning
811 * to INACTIVE state.
812 */
813 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
814 return;
09b9df4e 815 }
977b1174 816 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
09b9df4e
JM		 817}
818
819
5cbd88d9
JJ		 820int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
821 struct wpa_bss *selected,
822 struct wpa_ssid *ssid)
09b9df4e
JM		 823{
824 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
825 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
826 "PBC session overlap");
b73bf0a7
JM		 827#ifdef CONFIG_P2P
828 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
5cbd88d9 829 return -1;
b73bf0a7 830#endif /* CONFIG_P2P */
199716ad
BG		 831
832#ifdef CONFIG_WPS
7736f18b 833 wpas_wps_cancel(wpa_s);
199716ad 834#endif /* CONFIG_WPS */
5cbd88d9 835 return -1;
09b9df4e
JM		 836 }
837
838 /*
839 * Do not trigger new association unless the BSSID has changed or if
840 * reassociation is requested. If we are in process of associating with
841 * the selected BSSID, do not trigger new attempt.
842 */
843 if (wpa_s->reassociate ||
844 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
e29853bb
BG		 845 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
846 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
09b9df4e
JM		 847 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
848 0))) {
849 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
977b1174 850 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
5cbd88d9 851 return 0;
09b9df4e 852 }
e29853bb
BG		 853 wpa_msg(wpa_s, MSG_DEBUG, "Request association: "
854 "reassociate: %d selected: "MACSTR " bssid: " MACSTR
855 " pending: " MACSTR " wpa_state: %s",
856 wpa_s->reassociate, MAC2STR(selected->bssid),
857 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
858 wpa_supplicant_state_txt(wpa_s->wpa_state));
09b9df4e
JM		 859 wpa_supplicant_associate(wpa_s, selected, ssid);
860 } else {
f049052b
BG		 861 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the "
862 "selected AP");
09b9df4e 863 }
5cbd88d9
JJ		 864
865 return 0;
09b9df4e
JM		 866}
867
868
b55aaa5f
JM		 869static struct wpa_ssid *
870wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
871{
872 int prio;
873 struct wpa_ssid *ssid;
874
875 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
876 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
877 {
878 if (ssid->disabled)
879 continue;
880 if (ssid->mode == IEEE80211_MODE_IBSS ||
881 ssid->mode == IEEE80211_MODE_AP)
882 return ssid;
883 }
884 }
885 return NULL;
886}
887
888
a1fd2ce5
JM		 889/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
890 * on BSS added and BSS changed events */
6ae93185 891static void wpa_supplicant_rsn_preauth_scan_results(
6d28fb96 892 struct wpa_supplicant *wpa_s)
6ae93185 893{
6d28fb96 894 struct wpa_bss *bss;
6ae93185
JM		 895
896 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
897 return;
898
6d28fb96 899 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
6ae93185 900 const u8 *ssid, *rsn;
6ae93185 901
6d28fb96 902 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
6ae93185
JM		 903 if (ssid == NULL)
904 continue;
905
6d28fb96 906 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
6ae93185
JM		 907 if (rsn == NULL)
908 continue;
909
6d28fb96 910 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
6ae93185
JM		 911 }
912
913}
914
915
48563d86
JM		 916static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
917 struct wpa_bss *selected,
918 struct wpa_ssid *ssid,
919 struct wpa_scan_results *scan_res)
920{
921 size_t i;
922 struct wpa_scan_res *current_bss = NULL;
923 int min_diff;
924
925 if (wpa_s->reassociate)
926 return 1; /* explicit request to reassociate */
927 if (wpa_s->wpa_state < WPA_ASSOCIATED)
928 return 1; /* we are not associated; continue */
929 if (wpa_s->current_ssid == NULL)
930 return 1; /* unknown current SSID */
931 if (wpa_s->current_ssid != ssid)
932 return 1; /* different network block */
933
22628eca
JM		 934 if (wpas_driver_bss_selection(wpa_s))
935 return 0; /* Driver-based roaming */
936
48563d86
JM		 937 for (i = 0; i < scan_res->num; i++) {
938 struct wpa_scan_res *res = scan_res->res[i];
939 const u8 *ie;
940 if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0)
941 continue;
942
943 ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
944 if (ie == NULL)
945 continue;
946 if (ie[1] != wpa_s->current_ssid->ssid_len ||
947 os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0)
948 continue;
949 current_bss = res;
950 break;
951 }
952
953 if (!current_bss)
954 return 1; /* current BSS not seen in scan results */
955
f049052b
BG		 956 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
957 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
958 MAC2STR(current_bss->bssid), current_bss->level);
959 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
960 MAC2STR(selected->bssid), selected->level);
48563d86 961
ac26ebd8
JM		 962 if (wpa_s->current_ssid->bssid_set &&
963 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
964 0) {
f049052b
BG		 965 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
966 "has preferred BSSID");
ac26ebd8
JM		 967 return 1;
968 }
969
48563d86
JM		 970 min_diff = 2;
971 if (current_bss->level < 0) {
972 if (current_bss->level < -85)
973 min_diff = 1;
974 else if (current_bss->level < -80)
975 min_diff = 2;
976 else if (current_bss->level < -75)
977 min_diff = 3;
978 else if (current_bss->level < -70)
979 min_diff = 4;
980 else
981 min_diff = 5;
982 }
983 if (abs(current_bss->level - selected->level) < min_diff) {
f049052b
BG		 984 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
985 "in signal level");
48563d86
JM		 986 return 0;
987 }
988
989 return 1;
990}
991
e1504976
BG		 992/* Return < 0 if no scan results could be fetched. */
993static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
994 union wpa_event_data *data)
09b9df4e 995{
6fa81a3b 996 struct wpa_bss *selected;
6fc6879b 997 struct wpa_ssid *ssid = NULL;
a1fd2ce5 998 struct wpa_scan_results *scan_res;
5bc0cdb7
JM		 999 int ap = 0;
1000
1001#ifdef CONFIG_AP
1002 if (wpa_s->ap_iface)
1003 ap = 1;
1004#endif /* CONFIG_AP */
6fc6879b 1005
cb8564b1
DW		 1006 wpa_supplicant_notify_scanning(wpa_s, 0);
1007
39185dfa
JM		 1008#ifdef CONFIG_P2P
1009 if (wpa_s->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
1010 wpa_s->global->p2p != NULL) {
1011 wpa_s->p2p_cb_on_scan_complete = 0;
1012 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
1013 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
1014 "stopped scan processing");
1015 return -1;
1016 }
1017 }
1018#endif /* CONFIG_P2P */
1019
a1fd2ce5
JM		 1020 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1021 data ? &data->scan_info :
1022 NULL, 1);
1023 if (scan_res == NULL) {
5bc0cdb7 1024 if (wpa_s->conf->ap_scan == 2 || ap)
e1504976 1025 return -1;
f049052b
BG		 1026 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1027 "scanning again");
977b1174 1028 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
e1504976 1029 return -1;
6fc6879b
JM		 1030 }
1031
bbb921da
JM		 1032#ifndef CONFIG_NO_RANDOM_POOL
1033 size_t i, num;
1034 num = scan_res->num;
1035 if (num > 10)
1036 num = 10;
1037 for (i = 0; i < num; i++) {
1038 u8 buf[5];
1039 struct wpa_scan_res *res = scan_res->res[i];
1040 buf[0] = res->bssid[5];
1041 buf[1] = res->qual & 0xff;
1042 buf[2] = res->noise & 0xff;
1043 buf[3] = res->level & 0xff;
1044 buf[4] = res->tsf & 0xff;
1045 random_add_randomness(buf, sizeof(buf));
1046 }
1047#endif /* CONFIG_NO_RANDOM_POOL */
1048
64e58f51 1049 if (wpa_s->scan_res_handler) {
860fddbb
JB		 1050 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1051 struct wpa_scan_results *scan_res);
1052
1053 scan_res_handler = wpa_s->scan_res_handler;
64e58f51 1054 wpa_s->scan_res_handler = NULL;
860fddbb
JB		 1055 scan_res_handler(wpa_s, scan_res);
1056
64e58f51 1057 wpa_scan_results_free(scan_res);
e1504976 1058 return 0;
64e58f51
JM		 1059 }
1060
5bc0cdb7 1061 if (ap) {
f049052b 1062 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
c202f19c
JB		 1063#ifdef CONFIG_AP
1064 if (wpa_s->ap_iface->scan_cb)
1065 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1066#endif /* CONFIG_AP */
5bc0cdb7 1067 wpa_scan_results_free(scan_res);
e1504976 1068 return 0;
5bc0cdb7
JM		 1069 }
1070
f049052b 1071 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
24f76940
JM		 1072 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1073 wpas_notify_scan_results(wpa_s);
6fc6879b 1074
8bac466b
JM		 1075 wpas_notify_scan_done(wpa_s, 1);
1076
a1fd2ce5
JM		 1077 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
1078 wpa_scan_results_free(scan_res);
e1504976 1079 return 0;
a1fd2ce5 1080 }
6fc6879b 1081
3180d7a2
SO		 1082 if (wpa_s->disconnected) {
1083 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
a1fd2ce5 1084 wpa_scan_results_free(scan_res);
e1504976 1085 return 0;
3180d7a2
SO		 1086 }
1087
22628eca
JM		 1088 if (!wpas_driver_bss_selection(wpa_s) &&
1089 bgscan_notify_scan(wpa_s, scan_res) == 1) {
a1fd2ce5 1090 wpa_scan_results_free(scan_res);
e1504976 1091 return 0;
a1fd2ce5
JM		 1092 }
1093
a1fd2ce5 1094 selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
6ae93185 1095
6fc6879b 1096 if (selected) {
48563d86
JM		 1097 int skip;
1098 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid,
1099 scan_res);
1100 wpa_scan_results_free(scan_res);
1bbff09e
JM		 1101 if (skip) {
1102 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
e1504976 1103 return 0;
1bbff09e 1104 }
5cbd88d9
JJ		 1105
1106 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1107 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1108 return -1;
1109 }
6d28fb96 1110 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
6fc6879b 1111 } else {
48563d86 1112 wpa_scan_results_free(scan_res);
f049052b 1113 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
b55aaa5f
JM		 1114 ssid = wpa_supplicant_pick_new_network(wpa_s);
1115 if (ssid) {
f049052b 1116 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
b55aaa5f 1117 wpa_supplicant_associate(wpa_s, NULL, ssid);
6d28fb96 1118 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
977b1174 1119 } else {
67b9bd08 1120 int timeout_sec = wpa_s->scan_interval;
977b1174 1121 int timeout_usec = 0;
0817de90
JM		 1122#ifdef CONFIG_P2P
1123 if (wpa_s->p2p_in_provisioning) {
1124 /*
1125 * Use shorter wait during P2P Provisioning
1126 * state to speed up group formation.
1127 */
1128 timeout_sec = 0;
1129 timeout_usec = 250000;
a4cba8f1
LC		 1130 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1131 timeout_usec);
1132 return 0;
0817de90
JM		 1133 }
1134#endif /* CONFIG_P2P */
a4cba8f1
LC		 1135 if (wpa_supplicant_req_sched_scan(wpa_s))
1136 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1137 timeout_usec);
977b1174 1138 }
6fc6879b 1139 }
e1504976 1140 return 0;
6fc6879b 1141}
6859f1cb
BG		 1142
1143
1144static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1145 union wpa_event_data *data)
1146{
1147 const char *rn, *rn2;
1148 struct wpa_supplicant *ifs;
1149
e1504976
BG		 1150 if (_wpa_supplicant_event_scan_results(wpa_s, data) < 0) {
1151 /*
1152 * If no scan results could be fetched, then no need to
1153 * notify those interfaces that did not actually request
1154 * this scan.
1155 */
1156 return;
1157 }
6859f1cb
BG		 1158
1159 /*
1160 * Check other interfaces to see if they have the same radio-name. If
1161 * so, they get updated with this same scan info.
1162 */
1163 if (!wpa_s->driver->get_radio_name)
1164 return;
1165
1166 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
1167 if (rn == NULL || rn[0] == '\0')
1168 return;
1169
f049052b
BG		 1170 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces "
1171 "sharing same radio (%s) in event_scan_results", rn);
6859f1cb
BG		 1172
1173 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
1174 if (ifs == wpa_s || !ifs->driver->get_radio_name)
1175 continue;
1176
1177 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
1178 if (rn2 && os_strcmp(rn, rn2) == 0) {
1179 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1180 "sibling", ifs->ifname);
1181 _wpa_supplicant_event_scan_results(ifs, data);
1182 }
1183 }
1184}
1185
6fc6879b
JM		 1186#endif /* CONFIG_NO_SCAN_PROCESSING */
1187
1188
579ce771
JM		 1189static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1190 union wpa_event_data *data)
6fc6879b
JM		 1191{
1192 int l, len, found = 0, wpa_found, rsn_found;
c2a04078 1193 const u8 *p;
6fc6879b 1194
f049052b 1195 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
6fc6879b
JM		 1196 if (data->assoc_info.req_ies)
1197 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1198 data->assoc_info.req_ies_len);
52c9e6f3 1199 if (data->assoc_info.resp_ies) {
6fc6879b
JM		 1200 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1201 data->assoc_info.resp_ies_len);
52c9e6f3
JM		 1202#ifdef CONFIG_TDLS
1203 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1204 data->assoc_info.resp_ies_len);
1205#endif /* CONFIG_TDLS */
1206 }
6fc6879b
JM		 1207 if (data->assoc_info.beacon_ies)
1208 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1209 data->assoc_info.beacon_ies,
1210 data->assoc_info.beacon_ies_len);
4832ecd7 1211 if (data->assoc_info.freq)
f049052b
BG		 1212 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1213 data->assoc_info.freq);
6fc6879b
JM		 1214
1215 p = data->assoc_info.req_ies;
1216 l = data->assoc_info.req_ies_len;
1217
1218 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1219 while (p && l >= 2) {
1220 len = p[1] + 2;
1221 if (len > l) {
1222 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1223 p, l);
1224 break;
1225 }
1226 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1227 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1228 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1229 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1230 break;
1231 found = 1;
1232 wpa_find_assoc_pmkid(wpa_s);
1233 break;
1234 }
1235 l -= len;
1236 p += len;
1237 }
1238 if (!found && data->assoc_info.req_ies)
1239 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1240
c2a04078 1241#ifdef CONFIG_IEEE80211R
62c72d72
JM		 1242#ifdef CONFIG_SME
1243 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1244 u8 bssid[ETH_ALEN];
1245 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1246 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1247 data->assoc_info.resp_ies,
1248 data->assoc_info.resp_ies_len,
1249 bssid) < 0) {
f049052b
BG		 1250 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1251 "Reassociation Response failed");
579ce771
JM		 1252 wpa_supplicant_deauthenticate(
1253 wpa_s, WLAN_REASON_INVALID_IE);
1254 return -1;
62c72d72
JM		 1255 }
1256 }
62c72d72 1257
c2a04078
JM		 1258 p = data->assoc_info.resp_ies;
1259 l = data->assoc_info.resp_ies_len;
1260
54f489be 1261#ifdef CONFIG_WPS_STRICT
5dac11e0 1262 if (p && wpa_s->current_ssid &&
54f489be
JM		 1263 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1264 struct wpabuf *wps;
1265 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1266 if (wps == NULL) {
f049052b
BG		 1267 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1268 "include WPS IE in (Re)Association Response");
54f489be
JM		 1269 return -1;
1270 }
1271
1272 if (wps_validate_assoc_resp(wps) < 0) {
1273 wpabuf_free(wps);
1274 wpa_supplicant_deauthenticate(
1275 wpa_s, WLAN_REASON_INVALID_IE);
1276 return -1;
1277 }
1278 wpabuf_free(wps);
1279 }
1280#endif /* CONFIG_WPS_STRICT */
1281
e7846b68 1282 /* Go through the IEs and make a copy of the MDIE, if present. */
c2a04078
JM		 1283 while (p && l >= 2) {
1284 len = p[1] + 2;
1285 if (len > l) {
1286 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1287 p, l);
1288 break;
1289 }
e7846b68
JM		 1290 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1291 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1292 wpa_s->sme.ft_used = 1;
1293 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1294 MOBILITY_DOMAIN_ID_LEN);
1295 break;
1296 }
c2a04078
JM		 1297 l -= len;
1298 p += len;
1299 }
e7846b68 1300#endif /* CONFIG_SME */
c2a04078 1301
e7846b68
JM		 1302 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1303 data->assoc_info.resp_ies_len);
c2a04078
JM		 1304#endif /* CONFIG_IEEE80211R */
1305
6fc6879b
JM		 1306 /* WPA/RSN IE from Beacon/ProbeResp */
1307 p = data->assoc_info.beacon_ies;
1308 l = data->assoc_info.beacon_ies_len;
1309
1310 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1311 */
1312 wpa_found = rsn_found = 0;
1313 while (p && l >= 2) {
1314 len = p[1] + 2;
1315 if (len > l) {
1316 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1317 p, l);
1318 break;
1319 }
1320 if (!wpa_found &&
1321 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1322 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1323 wpa_found = 1;
1324 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1325 }
1326
1327 if (!rsn_found &&
1328 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1329 rsn_found = 1;
1330 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1331 }
1332
1333 l -= len;
1334 p += len;
1335 }
1336
1337 if (!wpa_found && data->assoc_info.beacon_ies)
1338 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1339 if (!rsn_found && data->assoc_info.beacon_ies)
1340 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1341 if (wpa_found || rsn_found)
1342 wpa_s->ap_ies_from_associnfo = 1;
4832ecd7 1343
117e812d
JM		 1344 if (wpa_s->assoc_freq && data->assoc_info.freq &&
1345 wpa_s->assoc_freq != data->assoc_info.freq) {
1346 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1347 "%u to %u MHz",
1348 wpa_s->assoc_freq, data->assoc_info.freq);
1349 wpa_supplicant_update_scan_results(wpa_s);
1350 }
1351
4832ecd7 1352 wpa_s->assoc_freq = data->assoc_info.freq;
579ce771
JM		 1353
1354 return 0;
6fc6879b
JM		 1355}
1356
1357
1358static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1359 union wpa_event_data *data)
1360{
1361 u8 bssid[ETH_ALEN];
1d041bec 1362 int ft_completed;
8bac466b 1363 int bssid_changed;
0194fedb 1364 struct wpa_driver_capa capa;
6fc6879b 1365
1d041bec
JM		 1366#ifdef CONFIG_AP
1367 if (wpa_s->ap_iface) {
1368 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1369 data->assoc_info.addr,
1370 data->assoc_info.req_ies,
39b08b5f
SP		 1371 data->assoc_info.req_ies_len,
1372 data->assoc_info.reassoc);
1d041bec
JM		 1373 return;
1374 }
1375#endif /* CONFIG_AP */
1376
1377 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
579ce771
JM		 1378 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1379 return;
6fc6879b
JM		 1380
1381 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
17fbb751
JM		 1382 if (wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
1383 os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
f049052b 1384 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
6fc6879b 1385 MACSTR, MAC2STR(bssid));
bbb921da 1386 random_add_randomness(bssid, ETH_ALEN);
8bac466b 1387 bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN);
6fc6879b
JM		 1388 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1389 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
8bac466b
JM		 1390 if (bssid_changed)
1391 wpas_notify_bssid_changed(wpa_s);
1392
6fc6879b
JM		 1393 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1394 wpa_clear_keys(wpa_s, bssid);
1395 }
1396 if (wpa_supplicant_select_config(wpa_s) < 0) {
1397 wpa_supplicant_disassociate(
1398 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1399 return;
1400 }
8f770587
JM		 1401 if (wpa_s->current_ssid) {
1402 struct wpa_bss *bss = NULL;
1403 struct wpa_ssid *ssid = wpa_s->current_ssid;
1404 if (ssid->ssid_len > 0)
1405 bss = wpa_bss_get(wpa_s, bssid,
1406 ssid->ssid, ssid->ssid_len);
1407 if (!bss)
1408 bss = wpa_bss_get_bssid(wpa_s, bssid);
1409 if (bss)
1410 wpa_s->current_bss = bss;
1411 }
6fc6879b
JM		 1412 }
1413
62fa124c
JM		 1414#ifdef CONFIG_SME
1415 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1416 wpa_s->sme.prev_bssid_set = 1;
1417#endif /* CONFIG_SME */
1418
6fc6879b
JM		 1419 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1420 if (wpa_s->current_ssid) {
1421 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1422 * initialized before association, but for other modes,
1423 * initialize PC/SC here, if the current configuration needs
1424 * smartcard or SIM/USIM. */
1425 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1426 }
1427 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
3f967fe0
JM		 1428 if (wpa_s->l2)
1429 l2_packet_notify_auth_start(wpa_s->l2);
6fc6879b
JM		 1430
1431 /*
1432 * Set portEnabled first to FALSE in order to get EAP state machine out
1433 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1434 * state machine may transit to AUTHENTICATING state based on obsolete
1435 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1436 * AUTHENTICATED without ever giving chance to EAP state machine to
1437 * reset the state.
1438 */
1439 if (!ft_completed) {
1440 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1441 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1442 }
56586197 1443 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
6fc6879b
JM		 1444 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1445 /* 802.1X::portControl = Auto */
1446 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1447 wpa_s->eapol_received = 0;
1448 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
9c972abb
JM		 1449 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1450 (wpa_s->current_ssid &&
1451 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
6fc6879b
JM		 1452 wpa_supplicant_cancel_auth_timeout(wpa_s);
1453 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1454 } else if (!ft_completed) {
1455 /* Timeout for receiving the first EAPOL packet */
1456 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1457 }
1458 wpa_supplicant_cancel_scan(wpa_s);
1459
c2a04078 1460 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
56586197 1461 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
6fc6879b
JM		 1462 /*
1463 * We are done; the driver will take care of RSN 4-way
1464 * handshake.
1465 */
1466 wpa_supplicant_cancel_auth_timeout(wpa_s);
1467 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1468 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1469 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
98ea9431
JM		 1470 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1471 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1472 /*
1473 * The driver will take care of RSN 4-way handshake, so we need
1474 * to allow EAPOL supplicant to complete its work without
1475 * waiting for WPA supplicant.
1476 */
1477 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
16a83d29
JM		 1478 } else if (ft_completed) {
1479 /*
1480 * FT protocol completed - make sure EAPOL state machine ends
1481 * up in authenticated.
1482 */
1483 wpa_supplicant_cancel_auth_timeout(wpa_s);
1484 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1485 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1486 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
6fc6879b 1487 }
1ff73338
JM		 1488
1489 if (wpa_s->pending_eapol_rx) {
1490 struct os_time now, age;
1491 os_get_time(&now);
1492 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1493 if (age.sec == 0 && age.usec < 100000 &&
1494 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1495 0) {
f049052b
BG		 1496 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
1497 "frame that was received just before "
1498 "association notification");
1ff73338
JM		 1499 wpa_supplicant_rx_eapol(
1500 wpa_s, wpa_s->pending_eapol_rx_src,
1501 wpabuf_head(wpa_s->pending_eapol_rx),
1502 wpabuf_len(wpa_s->pending_eapol_rx));
1503 }
1504 wpabuf_free(wpa_s->pending_eapol_rx);
1505 wpa_s->pending_eapol_rx = NULL;
1506 }
60b94c98 1507
0194fedb
JB		 1508 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1509 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
1510 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1511 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
1512 /* Set static WEP keys again */
1513 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
1514 }
50b05780
JM		 1515
1516#ifdef CONFIG_IBSS_RSN
1517 if (wpa_s->current_ssid &&
1518 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
1519 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
78177a00
JM		 1520 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
1521 wpa_s->ibss_rsn == NULL) {
1522 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
1523 if (!wpa_s->ibss_rsn) {
1524 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
1525 wpa_supplicant_deauthenticate(
1526 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1527 return;
1528 }
1529
1530 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
1531 }
50b05780 1532#endif /* CONFIG_IBSS_RSN */
6fc6879b
JM		 1533}
1534
1535
d00821e9
JM		 1536static int disconnect_reason_recoverable(u16 reason_code)
1537{
1538 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
1539 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
1540 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
1541}
1542
1543
0544b242
JM		 1544static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
1545 u16 reason_code)
6fc6879b
JM		 1546{
1547 const u8 *bssid;
6d6f4bb8
JM		 1548 int authenticating;
1549 u8 prev_pending_bssid[ETH_ALEN];
d00821e9
JM		 1550 struct wpa_bss *fast_reconnect = NULL;
1551 struct wpa_ssid *fast_reconnect_ssid = NULL;
6d6f4bb8
JM		 1552
1553 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
1554 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
6fc6879b
JM		 1555
1556 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1557 /*
1558 * At least Host AP driver and a Prism3 card seemed to be
1559 * generating streams of disconnected events when configuring
1560 * IBSS for WPA-None. Ignore them for now.
1561 */
f049052b
BG		 1562 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
1563 "IBSS/WPA-None mode");
6fc6879b
JM		 1564 return;
1565 }
1566
1567 if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
56586197 1568 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
6fc6879b
JM		 1569 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
1570 "pre-shared key may be incorrect");
1571 }
0d0a8ca1
AC		 1572 if (!wpa_s->auto_reconnect_disabled ||
1573 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
d00821e9 1574 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
f7da5a9e
JM		 1575 "reconnect (wps=%d wpa_state=%d)",
1576 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
1577 wpa_s->wpa_state);
d00821e9
JM		 1578 if (wpa_s->wpa_state == WPA_COMPLETED &&
1579 wpa_s->current_ssid &&
1580 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
1581 disconnect_reason_recoverable(reason_code)) {
1582 /*
1583 * It looks like the AP has dropped association with
1584 * us, but could allow us to get back in. Try to
1585 * reconnect to the same BSS without full scan to save
1586 * time for some common cases.
1587 */
1588 fast_reconnect = wpa_s->current_bss;
1589 fast_reconnect_ssid = wpa_s->current_ssid;
1590 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
0d0a8ca1 1591 wpa_supplicant_req_scan(wpa_s, 0, 100000);
f7da5a9e
JM		 1592 else
1593 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
1594 "immediate scan");
0d0a8ca1 1595 } else {
d00821e9 1596 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
f049052b 1597 "try to re-connect");
0d0a8ca1
AC		 1598 wpa_s->reassociate = 0;
1599 wpa_s->disconnected = 1;
1600 }
6fc6879b 1601 bssid = wpa_s->bssid;
a8e16edc 1602 if (is_zero_ether_addr(bssid))
6fc6879b 1603 bssid = wpa_s->pending_bssid;
56d24b4e
JM		 1604 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
1605 wpas_connection_failed(wpa_s, bssid);
6fc6879b 1606 wpa_sm_notify_disassoc(wpa_s->wpa);
0544b242
JM		 1607 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
1608 " reason=%d",
1609 MAC2STR(bssid), reason_code);
6fc6879b 1610 if (wpa_supplicant_dynamic_keys(wpa_s)) {
f049052b 1611 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
6fc6879b
JM		 1612 wpa_s->keys_cleared = 0;
1613 wpa_clear_keys(wpa_s, wpa_s->bssid);
1614 }
1615 wpa_supplicant_mark_disassoc(wpa_s);
e29853bb
BG		 1616
1617 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1618 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
d00821e9
JM		 1619
1620 if (fast_reconnect) {
5928411e 1621#ifndef CONFIG_NO_SCAN_PROCESSING
d00821e9
JM		 1622 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
1623 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
1624 fast_reconnect_ssid) < 0) {
1625 /* Recover through full scan */
1626 wpa_supplicant_req_scan(wpa_s, 0, 100000);
1627 }
5928411e 1628#endif /* CONFIG_NO_SCAN_PROCESSING */
d00821e9 1629 }
6fc6879b
JM		 1630}
1631
1632
46690a3b 1633#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
01a17491 1634void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
46690a3b
JM		 1635{
1636 struct wpa_supplicant *wpa_s = eloop_ctx;
1637
1638 if (!wpa_s->pending_mic_error_report)
1639 return;
1640
f049052b 1641 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
46690a3b
JM		 1642 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
1643 wpa_s->pending_mic_error_report = 0;
1644}
1645#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1646
1647
6fc6879b
JM		 1648static void
1649wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
1650 union wpa_event_data *data)
1651{
1652 int pairwise;
1653 struct os_time t;
1654
1655 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
1656 pairwise = (data && data->michael_mic_failure.unicast);
6fc6879b 1657 os_get_time(&t);
46690a3b
JM		 1658 if ((wpa_s->last_michael_mic_error &&
1659 t.sec - wpa_s->last_michael_mic_error <= 60) ||
1660 wpa_s->pending_mic_error_report) {
1661 if (wpa_s->pending_mic_error_report) {
1662 /*
1663 * Send the pending MIC error report immediately since
1664 * we are going to start countermeasures and AP better
1665 * do the same.
1666 */
1667 wpa_sm_key_request(wpa_s->wpa, 1,
1668 wpa_s->pending_mic_error_pairwise);
1669 }
1670
1671 /* Send the new MIC error report immediately since we are going
1672 * to start countermeasures and AP better do the same.
1673 */
1674 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1675
6fc6879b
JM		 1676 /* initialize countermeasures */
1677 wpa_s->countermeasures = 1;
1678 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
1679
1680 /*
1681 * Need to wait for completion of request frame. We do not get
1682 * any callback for the message completion, so just wait a
1683 * short while and hope for the best. */
1684 os_sleep(0, 10000);
1685
1686 wpa_drv_set_countermeasures(wpa_s, 1);
1687 wpa_supplicant_deauthenticate(wpa_s,
1688 WLAN_REASON_MICHAEL_MIC_FAILURE);
1689 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
1690 wpa_s, NULL);
1691 eloop_register_timeout(60, 0,
1692 wpa_supplicant_stop_countermeasures,
1693 wpa_s, NULL);
1694 /* TODO: mark the AP rejected for 60 second. STA is
1695 * allowed to associate with another AP.. */
46690a3b
JM		 1696 } else {
1697#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1698 if (wpa_s->mic_errors_seen) {
1699 /*
1700 * Reduce the effectiveness of Michael MIC error
1701 * reports as a means for attacking against TKIP if
1702 * more than one MIC failure is noticed with the same
1703 * PTK. We delay the transmission of the reports by a
1704 * random time between 0 and 60 seconds in order to
1705 * force the attacker wait 60 seconds before getting
1706 * the information on whether a frame resulted in a MIC
1707 * failure.
1708 */
1709 u8 rval[4];
1710 int sec;
1711
1712 if (os_get_random(rval, sizeof(rval)) < 0)
1713 sec = os_random() % 60;
1714 else
1715 sec = WPA_GET_BE32(rval) % 60;
f049052b
BG		 1716 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
1717 "report %d seconds", sec);
46690a3b
JM		 1718 wpa_s->pending_mic_error_report = 1;
1719 wpa_s->pending_mic_error_pairwise = pairwise;
1720 eloop_cancel_timeout(
1721 wpa_supplicant_delayed_mic_error_report,
1722 wpa_s, NULL);
1723 eloop_register_timeout(
1724 sec, os_random() % 1000000,
1725 wpa_supplicant_delayed_mic_error_report,
1726 wpa_s, NULL);
1727 } else {
1728 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1729 }
1730#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1731 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1732#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
6fc6879b
JM		 1733 }
1734 wpa_s->last_michael_mic_error = t.sec;
46690a3b 1735 wpa_s->mic_errors_seen++;
6fc6879b
JM		 1736}
1737
1738
a83d9c96
SL		 1739#ifdef CONFIG_TERMINATE_ONLASTIF
1740static int any_interfaces(struct wpa_supplicant *head)
1741{
1742 struct wpa_supplicant *wpa_s;
1743
1744 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
1745 if (!wpa_s->interface_removed)
1746 return 1;
1747 return 0;
1748}
1749#endif /* CONFIG_TERMINATE_ONLASTIF */
1750
1751
6fc6879b
JM		 1752static void
1753wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
1754 union wpa_event_data *data)
1755{
1756 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
1757 return;
1758
1759 switch (data->interface_status.ievent) {
1760 case EVENT_INTERFACE_ADDED:
1761 if (!wpa_s->interface_removed)
1762 break;
1763 wpa_s->interface_removed = 0;
f049052b 1764 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
6fc6879b 1765 if (wpa_supplicant_driver_init(wpa_s) < 0) {
f049052b
BG		 1766 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
1767 "driver after interface was added");
6fc6879b
JM		 1768 }
1769 break;
1770 case EVENT_INTERFACE_REMOVED:
f049052b 1771 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
6fc6879b
JM		 1772 wpa_s->interface_removed = 1;
1773 wpa_supplicant_mark_disassoc(wpa_s);
1774 l2_packet_deinit(wpa_s->l2);
1775 wpa_s->l2 = NULL;
ea244d21 1776#ifdef CONFIG_IBSS_RSN
78177a00
JM		 1777 ibss_rsn_deinit(wpa_s->ibss_rsn);
1778 wpa_s->ibss_rsn = NULL;
ea244d21 1779#endif /* CONFIG_IBSS_RSN */
a83d9c96
SL		 1780#ifdef CONFIG_TERMINATE_ONLASTIF
1781 /* check if last interface */
1782 if (!any_interfaces(wpa_s->global->ifaces))
1783 eloop_terminate();
1784#endif /* CONFIG_TERMINATE_ONLASTIF */
6fc6879b
JM		 1785 break;
1786 }
1787}
1788
1789
1790#ifdef CONFIG_PEERKEY
1791static void
1792wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
1793 union wpa_event_data *data)
1794{
1795 if (data == NULL)
1796 return;
1797 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
1798}
1799#endif /* CONFIG_PEERKEY */
1800
1801
281ff0aa
GP		 1802#ifdef CONFIG_TDLS
1803static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
1804 union wpa_event_data *data)
1805{
1806 if (data == NULL)
1807 return;
1808 switch (data->tdls.oper) {
1809 case TDLS_REQUEST_SETUP:
1810 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
1811 break;
1812 case TDLS_REQUEST_TEARDOWN:
7de27409
AN		 1813 wpa_tdls_send_teardown(wpa_s->wpa, data->tdls.peer,
1814 data->tdls.reason_code);
281ff0aa
GP		 1815 break;
1816 }
1817}
1818#endif /* CONFIG_TDLS */
1819
1820
6fc6879b
JM		 1821#ifdef CONFIG_IEEE80211R
1822static void
1823wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
1824 union wpa_event_data *data)
1825{
1826 if (data == NULL)
1827 return;
1828
1829 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
1830 data->ft_ies.ies_len,
1831 data->ft_ies.ft_action,
babfbf15
JM		 1832 data->ft_ies.target_ap,
1833 data->ft_ies.ric_ies,
1834 data->ft_ies.ric_ies_len) < 0) {
6fc6879b
JM		 1835 /* TODO: prevent MLME/driver from trying to associate? */
1836 }
1837}
1838#endif /* CONFIG_IEEE80211R */
1839
1840
11ef8d35
JM		 1841#ifdef CONFIG_IBSS_RSN
1842static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
1843 union wpa_event_data *data)
1844{
df4bc509 1845 struct wpa_ssid *ssid;
df418245
XC		 1846 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1847 return;
11ef8d35
JM		 1848 if (data == NULL)
1849 return;
df4bc509
JM		 1850 ssid = wpa_s->current_ssid;
1851 if (ssid == NULL)
1852 return;
1853 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
1854 return;
1855
11ef8d35
JM		 1856 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
1857}
1858#endif /* CONFIG_IBSS_RSN */
1859
1860
036f7c4a
JM		 1861#ifdef CONFIG_IEEE80211R
1862static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
1863 size_t len)
1864{
1865 const u8 *sta_addr, *target_ap_addr;
1866 u16 status;
1867
1868 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
1869 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1870 return; /* only SME case supported for now */
1871 if (len < 1 + 2 * ETH_ALEN + 2)
1872 return;
1873 if (data[0] != 2)
1874 return; /* Only FT Action Response is supported for now */
1875 sta_addr = data + 1;
1876 target_ap_addr = data + 1 + ETH_ALEN;
1877 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
f049052b
BG		 1878 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
1879 MACSTR " TargetAP " MACSTR " status %u",
1880 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
036f7c4a
JM		 1881
1882 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
f049052b
BG		 1883 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
1884 " in FT Action Response", MAC2STR(sta_addr));
036f7c4a
JM		 1885 return;
1886 }
1887
1888 if (status) {
f049052b
BG		 1889 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
1890 "failure (status code %d)", status);
036f7c4a
JM		 1891 /* TODO: report error to FT code(?) */
1892 return;
1893 }
1894
1895 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
1896 len - (1 + 2 * ETH_ALEN + 2), 1,
1897 target_ap_addr, NULL, 0) < 0)
1898 return;
1899
fe191985
JM		 1900#ifdef CONFIG_SME
1901 {
1902 struct wpa_bss *bss;
1903 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
1904 if (bss)
1905 wpa_s->sme.freq = bss->freq;
62c72d72 1906 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
fe191985
JM		 1907 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
1908 WLAN_AUTH_FT);
1909 }
1910#endif /* CONFIG_SME */
036f7c4a
JM		 1911}
1912#endif /* CONFIG_IEEE80211R */
1913
1914
7d878ca7
JM		 1915static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
1916 struct unprot_deauth *e)
1917{
1918#ifdef CONFIG_IEEE80211W
1919 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
1920 "dropped: " MACSTR " -> " MACSTR
1921 " (reason code %u)",
1922 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
1923 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
1924#endif /* CONFIG_IEEE80211W */
1925}
1926
1927
1928static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
1929 struct unprot_disassoc *e)
1930{
1931#ifdef CONFIG_IEEE80211W
1932 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
1933 "dropped: " MACSTR " -> " MACSTR
1934 " (reason code %u)",
1935 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
1936 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
1937#endif /* CONFIG_IEEE80211W */
1938}
1939
1940
71269b37
JM		 1941static void wnm_action_rx(struct wpa_supplicant *wpa_s, struct rx_action *rx)
1942{
1943 u8 action, mode;
1944 const u8 *pos, *end;
1945
1946 if (rx->data == NULL || rx->len == 0)
1947 return;
1948
1949 pos = rx->data;
1950 end = pos + rx->len;
1951 action = *pos++;
1952
1953 wpa_printf(MSG_DEBUG, "WNM: RX action %u from " MACSTR,
1954 action, MAC2STR(rx->sa));
1955 switch (action) {
1956 case WNM_BSS_TRANS_MGMT_REQ:
1957 if (pos + 5 > end)
1958 break;
1959 wpa_printf(MSG_DEBUG, "WNM: BSS Transition Management "
1960 "Request: dialog_token=%u request_mode=0x%x "
1961 "disassoc_timer=%u validity_interval=%u",
1962 pos[0], pos[1], WPA_GET_LE16(pos + 2), pos[4]);
1963 mode = pos[1];
1964 pos += 5;
1965 if (mode & 0x08)
1966 pos += 12; /* BSS Termination Duration */
1967 if (mode & 0x10) {
1968 char url[256];
1969 if (pos + 1 > end || pos + 1 + pos[0] > end) {
1970 wpa_printf(MSG_DEBUG, "WNM: Invalid BSS "
1971 "Transition Management Request "
1972 "(URL)");
1973 break;
1974 }
1975 os_memcpy(url, pos + 1, pos[0]);
1976 url[pos[0]] = '\0';
1977 wpa_msg(wpa_s, MSG_INFO, "WNM: ESS Disassociation "
1978 "Imminent - session_info_url=%s", url);
1979 }
1980 break;
1981 }
1982}
1983
1984
9646a8ab 1985void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
6fc6879b
JM		 1986 union wpa_event_data *data)
1987{
1988 struct wpa_supplicant *wpa_s = ctx;
0544b242 1989 u16 reason_code = 0;
6fc6879b 1990
8401a6b0
JM		 1991 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
1992 event != EVENT_INTERFACE_ENABLED &&
1993 event != EVENT_INTERFACE_STATUS) {
6c3771d7
BG		 1994 wpa_dbg(wpa_s, MSG_DEBUG,
1995 "Ignore event %s (%d) while interface is disabled",
1996 event_to_string(event), event);
8401a6b0
JM		 1997 return;
1998 }
1999
74781dfc
JM		 2000#ifndef CONFIG_NO_STDOUT_DEBUG
2001{
2002 int level = MSG_DEBUG;
2003
2004 if (event == EVENT_RX_MGMT && data && data->rx_mgmt.frame &&
2005 data->rx_mgmt.frame_len >= 24) {
2006 const struct ieee80211_hdr *hdr;
2007 u16 fc;
2008 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
2009 fc = le_to_host16(hdr->frame_control);
2010 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2011 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
2012 level = MSG_EXCESSIVE;
2013 }
2014
2015 wpa_dbg(wpa_s, level, "Event %s (%d) received",
6c3771d7 2016 event_to_string(event), event);
74781dfc
JM		 2017}
2018#endif /* CONFIG_NO_STDOUT_DEBUG */
9b7124b2 2019
6fc6879b 2020 switch (event) {
c2a04078
JM		 2021 case EVENT_AUTH:
2022 sme_event_auth(wpa_s, data);
2023 break;
6fc6879b
JM		 2024 case EVENT_ASSOC:
2025 wpa_supplicant_event_assoc(wpa_s, data);
2026 break;
2027 case EVENT_DISASSOC:
f049052b 2028 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2e75a2b3 2029 if (data) {
f049052b
BG		 2030 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u",
2031 data->disassoc_info.reason_code);
2e75a2b3 2032 if (data->disassoc_info.addr)
f049052b
BG		 2033 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2034 MAC2STR(data->disassoc_info.addr));
2e75a2b3 2035 }
1d041bec 2036#ifdef CONFIG_AP
7f542069 2037 if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
1d041bec
JM		 2038 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2039 data->disassoc_info.addr);
2040 break;
2041 }
2042#endif /* CONFIG_AP */
9fdd0fad
JM		 2043 if (data) {
2044 reason_code = data->disassoc_info.reason_code;
2045 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2046 data->disassoc_info.ie,
2047 data->disassoc_info.ie_len);
2048#ifdef CONFIG_P2P
2049 wpas_p2p_disassoc_notif(
2050 wpa_s, data->disassoc_info.addr, reason_code,
2051 data->disassoc_info.ie,
2052 data->disassoc_info.ie_len);
2053#endif /* CONFIG_P2P */
2054 }
0e379654
JM		 2055 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2056 sme_event_disassoc(wpa_s, data);
a84ed99e
JM		 2057 /* fall through */
2058 case EVENT_DEAUTH:
0544b242 2059 if (event == EVENT_DEAUTH) {
f049052b
BG		 2060 wpa_dbg(wpa_s, MSG_DEBUG,
2061 "Deauthentication notification");
2e75a2b3 2062 if (data) {
0544b242 2063 reason_code = data->deauth_info.reason_code;
f049052b
BG		 2064 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u",
2065 data->deauth_info.reason_code);
2e75a2b3 2066 if (data->deauth_info.addr) {
f049052b
BG		 2067 wpa_dbg(wpa_s, MSG_DEBUG, " * address "
2068 MACSTR,
2069 MAC2STR(data->deauth_info.
2070 addr));
2e75a2b3 2071 }
9fdd0fad
JM		 2072 wpa_hexdump(MSG_DEBUG,
2073 "Deauthentication frame IE(s)",
2074 data->deauth_info.ie,
2075 data->deauth_info.ie_len);
2076#ifdef CONFIG_P2P
2077 wpas_p2p_deauth_notif(
2078 wpa_s, data->deauth_info.addr,
2079 reason_code,
2080 data->deauth_info.ie,
2081 data->deauth_info.ie_len);
2082#endif /* CONFIG_P2P */
2e75a2b3 2083 }
0544b242 2084 }
1d041bec 2085#ifdef CONFIG_AP
7f542069 2086 if (wpa_s->ap_iface && data && data->deauth_info.addr) {
1d041bec
JM		 2087 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2088 data->deauth_info.addr);
2089 break;
2090 }
2091#endif /* CONFIG_AP */
0544b242 2092 wpa_supplicant_event_disassoc(wpa_s, reason_code);
6fc6879b
JM		 2093 break;
2094 case EVENT_MICHAEL_MIC_FAILURE:
2095 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
2096 break;
2097#ifndef CONFIG_NO_SCAN_PROCESSING
2098 case EVENT_SCAN_RESULTS:
8d923a4a 2099 wpa_supplicant_event_scan_results(wpa_s, data);
6fc6879b
JM		 2100 break;
2101#endif /* CONFIG_NO_SCAN_PROCESSING */
2102 case EVENT_ASSOCINFO:
2103 wpa_supplicant_event_associnfo(wpa_s, data);
2104 break;
2105 case EVENT_INTERFACE_STATUS:
2106 wpa_supplicant_event_interface_status(wpa_s, data);
2107 break;
2108 case EVENT_PMKID_CANDIDATE:
2109 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
2110 break;
2111#ifdef CONFIG_PEERKEY
2112 case EVENT_STKSTART:
2113 wpa_supplicant_event_stkstart(wpa_s, data);
2114 break;
2115#endif /* CONFIG_PEERKEY */
281ff0aa
GP		 2116#ifdef CONFIG_TDLS
2117 case EVENT_TDLS:
2118 wpa_supplicant_event_tdls(wpa_s, data);
2119 break;
2120#endif /* CONFIG_TDLS */
6fc6879b
JM		 2121#ifdef CONFIG_IEEE80211R
2122 case EVENT_FT_RESPONSE:
2123 wpa_supplicant_event_ft_response(wpa_s, data);
2124 break;
2125#endif /* CONFIG_IEEE80211R */
11ef8d35
JM		 2126#ifdef CONFIG_IBSS_RSN
2127 case EVENT_IBSS_RSN_START:
2128 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
2129 break;
2130#endif /* CONFIG_IBSS_RSN */
efa46078 2131 case EVENT_ASSOC_REJECT:
c05d6d18
JM		 2132 if (data->assoc_reject.bssid)
2133 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2134 "bssid=" MACSTR " status_code=%u",
2135 MAC2STR(data->assoc_reject.bssid),
2136 data->assoc_reject.status_code);
2137 else
2138 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2139 "status_code=%u",
2140 data->assoc_reject.status_code);
ea78c315
JM		 2141 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2142 sme_event_assoc_reject(wpa_s, data);
efa46078 2143 break;
da1fb17c 2144 case EVENT_AUTH_TIMED_OUT:
ea78c315
JM		 2145 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2146 sme_event_auth_timed_out(wpa_s, data);
da1fb17c
JM		 2147 break;
2148 case EVENT_ASSOC_TIMED_OUT:
ea78c315
JM		 2149 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2150 sme_event_assoc_timed_out(wpa_s, data);
da1fb17c 2151 break;
f8b1f695 2152 case EVENT_TX_STATUS:
f049052b
BG		 2153 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
2154 " type=%d stype=%d",
2155 MAC2STR(data->tx_status.dst),
2156 data->tx_status.type, data->tx_status.stype);
24f6497c 2157#ifdef CONFIG_AP
9bae1be0 2158 if (wpa_s->ap_iface == NULL) {
24f6497c 2159#ifdef CONFIG_OFFCHANNEL
9bae1be0
JM		 2160 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2161 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
24f6497c 2162 offchannel_send_action_tx_status(
9bae1be0
JM		 2163 wpa_s, data->tx_status.dst,
2164 data->tx_status.data,
2165 data->tx_status.data_len,
93b7ddd0 2166 data->tx_status.ack ?
24f6497c
JM		 2167 OFFCHANNEL_SEND_ACTION_SUCCESS :
2168 OFFCHANNEL_SEND_ACTION_NO_ACK);
2169#endif /* CONFIG_OFFCHANNEL */
9bae1be0
JM		 2170 break;
2171 }
24f6497c
JM		 2172#endif /* CONFIG_AP */
2173#ifdef CONFIG_OFFCHANNEL
f049052b
BG		 2174 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
2175 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
9bae1be0
JM		 2176 /*
2177 * Catch TX status events for Action frames we sent via group
2178 * interface in GO mode.
2179 */
2180 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2181 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
2182 os_memcmp(wpa_s->parent->pending_action_dst,
2183 data->tx_status.dst, ETH_ALEN) == 0) {
24f6497c 2184 offchannel_send_action_tx_status(
9bae1be0
JM		 2185 wpa_s->parent, data->tx_status.dst,
2186 data->tx_status.data,
2187 data->tx_status.data_len,
1d39378a 2188 data->tx_status.ack ?
24f6497c
JM		 2189 OFFCHANNEL_SEND_ACTION_SUCCESS :
2190 OFFCHANNEL_SEND_ACTION_NO_ACK);
f8b1f695 2191 break;
9bae1be0 2192 }
24f6497c
JM		 2193#endif /* CONFIG_OFFCHANNEL */
2194#ifdef CONFIG_AP
f8b1f695
JM		 2195 switch (data->tx_status.type) {
2196 case WLAN_FC_TYPE_MGMT:
2197 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
2198 data->tx_status.data_len,
2199 data->tx_status.stype,
2200 data->tx_status.ack);
2201 break;
2202 case WLAN_FC_TYPE_DATA:
2203 ap_tx_status(wpa_s, data->tx_status.dst,
2204 data->tx_status.data,
2205 data->tx_status.data_len,
2206 data->tx_status.ack);
2207 break;
2208 }
24f6497c 2209#endif /* CONFIG_AP */
f8b1f695 2210 break;
24f6497c 2211#ifdef CONFIG_AP
dd840f79
JB		 2212 case EVENT_EAPOL_TX_STATUS:
2213 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
2214 data->eapol_tx_status.data,
2215 data->eapol_tx_status.data_len,
2216 data->eapol_tx_status.ack);
2217 break;
bcf24348
JB		 2218 case EVENT_DRIVER_CLIENT_POLL_OK:
2219 ap_client_poll_ok(wpa_s, data->client_poll.addr);
2220 break;
f8b1f695
JM		 2221 case EVENT_RX_FROM_UNKNOWN:
2222 if (wpa_s->ap_iface == NULL)
2223 break;
9b90955e
JB		 2224 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
2225 data->rx_from_unknown.wds);
f8b1f695
JM		 2226 break;
2227 case EVENT_RX_MGMT:
9bae1be0
JM		 2228 if (wpa_s->ap_iface == NULL) {
2229#ifdef CONFIG_P2P
2230 u16 fc, stype;
2231 const struct ieee80211_mgmt *mgmt;
2232 mgmt = (const struct ieee80211_mgmt *)
2233 data->rx_mgmt.frame;
2234 fc = le_to_host16(mgmt->frame_control);
2235 stype = WLAN_FC_GET_STYPE(fc);
2236 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2237 data->rx_mgmt.frame_len > 24) {
2238 const u8 *src = mgmt->sa;
2239 const u8 *ie = mgmt->u.probe_req.variable;
2240 size_t ie_len = data->rx_mgmt.frame_len -
2241 (mgmt->u.probe_req.variable -
2242 data->rx_mgmt.frame);
04a85e44
JM		 2243 wpas_p2p_probe_req_rx(wpa_s, src, mgmt->da,
2244 mgmt->bssid, ie, ie_len);
9bae1be0
JM		 2245 break;
2246 }
2247#endif /* CONFIG_P2P */
f049052b
BG		 2248 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
2249 "management frame in non-AP mode");
f8b1f695 2250 break;
9bae1be0 2251 }
2a8b7416 2252 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
f8b1f695
JM		 2253 break;
2254#endif /* CONFIG_AP */
036f7c4a 2255 case EVENT_RX_ACTION:
f049052b
BG		 2256 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2257 " Category=%u DataLen=%d freq=%d MHz",
2258 MAC2STR(data->rx_action.sa),
2259 data->rx_action.category, (int) data->rx_action.len,
2260 data->rx_action.freq);
036f7c4a
JM		 2261#ifdef CONFIG_IEEE80211R
2262 if (data->rx_action.category == WLAN_ACTION_FT) {
2263 ft_rx_action(wpa_s, data->rx_action.data,
2264 data->rx_action.len);
2265 break;
2266 }
2267#endif /* CONFIG_IEEE80211R */
7d878ca7
JM		 2268#ifdef CONFIG_IEEE80211W
2269#ifdef CONFIG_SME
2270 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) {
2271 sme_sa_query_rx(wpa_s, data->rx_action.sa,
2272 data->rx_action.data,
2273 data->rx_action.len);
2274 break;
2275 }
2276#endif /* CONFIG_SME */
2277#endif /* CONFIG_IEEE80211W */
04ea7b79
JM		 2278#ifdef CONFIG_GAS
2279 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2280 gas_query_rx(wpa_s->gas, data->rx_action.da,
2281 data->rx_action.sa, data->rx_action.bssid,
2282 data->rx_action.data, data->rx_action.len,
2283 data->rx_action.freq) == 0)
2284 break;
2285#endif /* CONFIG_GAS */
71269b37
JM		 2286 if (data->rx_action.category == WLAN_ACTION_WNM) {
2287 wnm_action_rx(wpa_s, &data->rx_action);
2288 break;
2289 }
35287637
AN		 2290#ifdef CONFIG_TDLS
2291 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2292 data->rx_action.len >= 4 &&
2293 data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
2294 wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery "
2295 "Response from " MACSTR,
2296 MAC2STR(data->rx_action.sa));
2297 break;
2298 }
2299#endif /* CONFIG_TDLS */
9bae1be0
JM		 2300#ifdef CONFIG_P2P
2301 wpas_p2p_rx_action(wpa_s, data->rx_action.da,
2302 data->rx_action.sa,
2303 data->rx_action.bssid,
2304 data->rx_action.category,
2305 data->rx_action.data,
2306 data->rx_action.len, data->rx_action.freq);
e67b55fb
JM		 2307#endif /* CONFIG_P2P */
2308 break;
2309 case EVENT_RX_PROBE_REQ:
b211f3eb
JM		 2310 if (data->rx_probe_req.sa == NULL ||
2311 data->rx_probe_req.ie == NULL)
2312 break;
e67b55fb
JM		 2313#ifdef CONFIG_AP
2314 if (wpa_s->ap_iface) {
2315 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
2316 data->rx_probe_req.sa,
04a85e44
JM		 2317 data->rx_probe_req.da,
2318 data->rx_probe_req.bssid,
e67b55fb
JM		 2319 data->rx_probe_req.ie,
2320 data->rx_probe_req.ie_len);
2321 break;
2322 }
2323#endif /* CONFIG_AP */
2324#ifdef CONFIG_P2P
2325 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
04a85e44
JM		 2326 data->rx_probe_req.da,
2327 data->rx_probe_req.bssid,
e67b55fb
JM		 2328 data->rx_probe_req.ie,
2329 data->rx_probe_req.ie_len);
9bae1be0 2330#endif /* CONFIG_P2P */
036f7c4a 2331 break;
9bae1be0 2332 case EVENT_REMAIN_ON_CHANNEL:
24f6497c
JM		 2333#ifdef CONFIG_OFFCHANNEL
2334 offchannel_remain_on_channel_cb(
2335 wpa_s, data->remain_on_channel.freq,
2336 data->remain_on_channel.duration);
2337#endif /* CONFIG_OFFCHANNEL */
2338#ifdef CONFIG_P2P
9bae1be0
JM		 2339 wpas_p2p_remain_on_channel_cb(
2340 wpa_s, data->remain_on_channel.freq,
2341 data->remain_on_channel.duration);
24f6497c 2342#endif /* CONFIG_P2P */
9bae1be0
JM		 2343 break;
2344 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
24f6497c
JM		 2345#ifdef CONFIG_OFFCHANNEL
2346 offchannel_cancel_remain_on_channel_cb(
2347 wpa_s, data->remain_on_channel.freq);
2348#endif /* CONFIG_OFFCHANNEL */
2349#ifdef CONFIG_P2P
9bae1be0
JM		 2350 wpas_p2p_cancel_remain_on_channel_cb(
2351 wpa_s, data->remain_on_channel.freq);
24f6497c 2352#endif /* CONFIG_P2P */
9bae1be0 2353 break;
24f6497c 2354#ifdef CONFIG_P2P
c5db8e51
KRK		 2355 case EVENT_P2P_DEV_FOUND: {
2356 struct p2p_peer_info peer_info;
2357
2358 os_memset(&peer_info, 0, sizeof(peer_info));
2359 if (data->p2p_dev_found.dev_addr)
2360 os_memcpy(peer_info.p2p_device_addr,
2361 data->p2p_dev_found.dev_addr, ETH_ALEN);
2362 if (data->p2p_dev_found.pri_dev_type)
2363 os_memcpy(peer_info.pri_dev_type,
2364 data->p2p_dev_found.pri_dev_type,
2365 sizeof(peer_info.pri_dev_type));
2366 if (data->p2p_dev_found.dev_name)
2367 os_strlcpy(peer_info.device_name,
2368 data->p2p_dev_found.dev_name,
2369 sizeof(peer_info.device_name));
2370 peer_info.config_methods = data->p2p_dev_found.config_methods;
2371 peer_info.dev_capab = data->p2p_dev_found.dev_capab;
2372 peer_info.group_capab = data->p2p_dev_found.group_capab;
2373
8fd7dc1b
JB		 2374 /*
2375 * FIX: new_device=1 is not necessarily correct. We should
2376 * maintain a P2P peer database in wpa_supplicant and update
2377 * this information based on whether the peer is truly new.
2378 */
2379 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1);
3ac17eba 2380 break;
c5db8e51 2381 }
3ac17eba
JM		 2382 case EVENT_P2P_GO_NEG_REQ_RX:
2383 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src,
2384 data->p2p_go_neg_req_rx.dev_passwd_id);
2385 break;
2386 case EVENT_P2P_GO_NEG_COMPLETED:
2387 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res);
2388 break;
2389 case EVENT_P2P_PROV_DISC_REQUEST:
2390 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer,
2391 data->p2p_prov_disc_req.config_methods,
2392 data->p2p_prov_disc_req.dev_addr,
2393 data->p2p_prov_disc_req.pri_dev_type,
2394 data->p2p_prov_disc_req.dev_name,
2395 data->p2p_prov_disc_req.supp_config_methods,
2396 data->p2p_prov_disc_req.dev_capab,
c3f42784
JM		 2397 data->p2p_prov_disc_req.group_capab,
2398 NULL, 0);
3ac17eba
JM		 2399 break;
2400 case EVENT_P2P_PROV_DISC_RESPONSE:
2401 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer,
2402 data->p2p_prov_disc_resp.config_methods);
2403 break;
2404 case EVENT_P2P_SD_REQUEST:
2405 wpas_sd_request(wpa_s, data->p2p_sd_req.freq,
2406 data->p2p_sd_req.sa,
2407 data->p2p_sd_req.dialog_token,
2408 data->p2p_sd_req.update_indic,
2409 data->p2p_sd_req.tlvs,
2410 data->p2p_sd_req.tlvs_len);
2411 break;
2412 case EVENT_P2P_SD_RESPONSE:
2413 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa,
2414 data->p2p_sd_resp.update_indic,
2415 data->p2p_sd_resp.tlvs,
2416 data->p2p_sd_resp.tlvs_len);
2417 break;
9bae1be0 2418#endif /* CONFIG_P2P */
a8e0505b
JM		 2419 case EVENT_EAPOL_RX:
2420 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
2421 data->eapol_rx.data,
2422 data->eapol_rx.data_len);
2423 break;
e2f74005
JM		 2424 case EVENT_SIGNAL_CHANGE:
2425 bgscan_notify_signal_change(
60a972a6 2426 wpa_s, data->signal_change.above_threshold,
174fa789
PS		 2427 data->signal_change.current_signal,
2428 data->signal_change.current_noise,
2429 data->signal_change.current_txrate);
e2f74005 2430 break;
8401a6b0 2431 case EVENT_INTERFACE_ENABLED:
f049052b 2432 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
8401a6b0 2433 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
bfba8deb 2434 wpa_supplicant_update_mac_addr(wpa_s);
199716ad 2435#ifdef CONFIG_AP
9919f7a2
JB		 2436 if (!wpa_s->ap_iface) {
2437 wpa_supplicant_set_state(wpa_s,
2438 WPA_DISCONNECTED);
2439 wpa_supplicant_req_scan(wpa_s, 0, 0);
2440 } else
2441 wpa_supplicant_set_state(wpa_s,
2442 WPA_COMPLETED);
199716ad
BG		 2443#else /* CONFIG_AP */
2444 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2445 wpa_supplicant_req_scan(wpa_s, 0, 0);
2446#endif /* CONFIG_AP */
8401a6b0
JM		 2447 }
2448 break;
2449 case EVENT_INTERFACE_DISABLED:
f049052b 2450 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
8401a6b0
JM		 2451 wpa_supplicant_mark_disassoc(wpa_s);
2452 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2453 break;
b5c9da8d 2454 case EVENT_CHANNEL_LIST_CHANGED:
35c5d610
JM		 2455 if (wpa_s->drv_priv == NULL)
2456 break; /* Ignore event during drv initialization */
b5c9da8d
JM		 2457#ifdef CONFIG_P2P
2458 wpas_p2p_update_channel_list(wpa_s);
c973f386
JM		 2459#endif /* CONFIG_P2P */
2460 break;
2461 case EVENT_INTERFACE_UNAVAILABLE:
2462#ifdef CONFIG_P2P
2463 wpas_p2p_interface_unavailable(wpa_s);
7cfc4ac3
AGS		 2464#endif /* CONFIG_P2P */
2465 break;
2466 case EVENT_BEST_CHANNEL:
f049052b
BG		 2467 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
2468 "(%d %d %d)",
2469 data->best_chan.freq_24, data->best_chan.freq_5,
2470 data->best_chan.freq_overall);
7cfc4ac3
AGS		 2471 wpa_s->best_24_freq = data->best_chan.freq_24;
2472 wpa_s->best_5_freq = data->best_chan.freq_5;
2473 wpa_s->best_overall_freq = data->best_chan.freq_overall;
2474#ifdef CONFIG_P2P
2475 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
2476 data->best_chan.freq_5,
2477 data->best_chan.freq_overall);
b5c9da8d
JM		 2478#endif /* CONFIG_P2P */
2479 break;
7d878ca7
JM		 2480 case EVENT_UNPROT_DEAUTH:
2481 wpa_supplicant_event_unprot_deauth(wpa_s,
2482 &data->unprot_deauth);
2483 break;
2484 case EVENT_UNPROT_DISASSOC:
2485 wpa_supplicant_event_unprot_disassoc(wpa_s,
2486 &data->unprot_disassoc);
2487 break;
0d7e5a3a
JB		 2488 case EVENT_STATION_LOW_ACK:
2489#ifdef CONFIG_AP
2490 if (wpa_s->ap_iface && data)
2491 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
2492 data->low_ack.addr);
2493#endif /* CONFIG_AP */
8f15f711
AN		 2494#ifdef CONFIG_TDLS
2495 if (data)
2496 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr);
2497#endif /* CONFIG_TDLS */
0d7e5a3a 2498 break;
ea244d21
XC		 2499 case EVENT_IBSS_PEER_LOST:
2500#ifdef CONFIG_IBSS_RSN
2501 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
2502#endif /* CONFIG_IBSS_RSN */
2503 break;
b14a210c
JB		 2504 case EVENT_DRIVER_GTK_REKEY:
2505 if (os_memcmp(data->driver_gtk_rekey.bssid,
2506 wpa_s->bssid, ETH_ALEN))
2507 break;
2508 if (!wpa_s->wpa)
2509 break;
2510 wpa_sm_update_replay_ctr(wpa_s->wpa,
2511 data->driver_gtk_rekey.replay_ctr);
2512 break;
cbdf3507
LC		 2513 case EVENT_SCHED_SCAN_STOPPED:
2514 wpa_s->sched_scanning = 0;
2515 wpa_supplicant_notify_scanning(wpa_s, 0);
2516
2517 /*
2518 * If we timed out, start a new sched scan to continue
2519 * searching for more SSIDs.
2520 */
2521 if (wpa_s->sched_scan_timed_out)
2522 wpa_supplicant_req_sched_scan(wpa_s);
2523 break;
783fcb7d
GG		 2524 case EVENT_WPS_BUTTON_PUSHED:
2525#ifdef CONFIG_WPS
2526 wpas_wps_start_pbc(wpa_s, NULL, 0);
2527#endif /* CONFIG_WPS */
2528 break;
6fc6879b 2529 default:
f049052b 2530 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
6fc6879b
JM		 2531 break;
2532 }
2533}
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