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[thirdparty/hostap.git] / wpa_supplicant / events.c
CommitLineData
6fc6879b
JM
1/*
2 * WPA Supplicant - Driver event processing
98cd3d1c 3 * Copyright (c) 2003-2015, 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"
9fbfd1b0 26#include "fst/fst.h"
75cad1a0 27#include "wnm_sta.h"
8bac466b 28#include "notify.h"
90973fb2 29#include "common/ieee802_11_defs.h"
54f489be 30#include "common/ieee802_11_common.h"
bbb921da 31#include "crypto/random.h"
6fc6879b
JM
32#include "blacklist.h"
33#include "wpas_glue.h"
351f09a2 34#include "wps_supplicant.h"
11ef8d35 35#include "ibss_rsn.h"
c2a04078 36#include "sme.h"
04ea7b79 37#include "gas_query.h"
9bae1be0 38#include "p2p_supplicant.h"
60b94c98 39#include "bgscan.h"
7c865c68 40#include "autoscan.h"
f8b1f695 41#include "ap.h"
6fa81a3b 42#include "bss.h"
9ba9fa07 43#include "scan.h"
24f6497c 44#include "offchannel.h"
4d5bda5f 45#include "interworking.h"
8319e312 46#include "mesh.h"
5f92659d 47#include "mesh_mpm.h"
a0413b17 48#include "wmm_ac.h"
6fc6879b
JM
49
50
5d5c4ee5 51#ifndef CONFIG_NO_SCAN_PROCESSING
06b7f58d 52static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
cc4952ad 53 int new_scan, int own_request);
5d5c4ee5 54#endif /* CONFIG_NO_SCAN_PROCESSING */
d6bbcce4
JM
55
56
00e5e3d5
JM
57static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
58 struct wpa_ssid *ssid)
59{
4e1eae1d 60 struct os_reltime now;
00e5e3d5
JM
61
62 if (ssid == NULL || ssid->disabled_until.sec == 0)
63 return 0;
64
4e1eae1d 65 os_get_reltime(&now);
00e5e3d5
JM
66 if (ssid->disabled_until.sec > now.sec)
67 return ssid->disabled_until.sec - now.sec;
68
69 wpas_clear_temp_disabled(wpa_s, ssid, 0);
70
71 return 0;
72}
73
74
eb926f12 75#ifndef CONFIG_NO_SCAN_PROCESSING
9bd566a3
AS
76/**
77 * wpas_reenabled_network_time - Time until first network is re-enabled
78 * @wpa_s: Pointer to wpa_supplicant data
79 * Returns: If all enabled networks are temporarily disabled, returns the time
80 * (in sec) until the first network is re-enabled. Otherwise returns 0.
81 *
82 * This function is used in case all enabled networks are temporarily disabled,
83 * in which case it returns the time (in sec) that the first network will be
84 * re-enabled. The function assumes that at least one network is enabled.
85 */
86static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
87{
88 struct wpa_ssid *ssid;
89 int disabled_for, res = 0;
90
91#ifdef CONFIG_INTERWORKING
92 if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
93 wpa_s->conf->cred)
94 return 0;
95#endif /* CONFIG_INTERWORKING */
96
97 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
98 if (ssid->disabled)
99 continue;
100
101 disabled_for = wpas_temp_disabled(wpa_s, ssid);
102 if (!disabled_for)
103 return 0;
104
105 if (!res || disabled_for < res)
106 res = disabled_for;
107 }
108
109 return res;
110}
eb926f12 111#endif /* CONFIG_NO_SCAN_PROCESSING */
9bd566a3
AS
112
113
114void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
115{
116 struct wpa_supplicant *wpa_s = eloop_ctx;
117
118 if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
119 return;
120
121 wpa_dbg(wpa_s, MSG_DEBUG,
122 "Try to associate due to network getting re-enabled");
123 if (wpa_supplicant_fast_associate(wpa_s) != 1) {
124 wpa_supplicant_cancel_sched_scan(wpa_s);
125 wpa_supplicant_req_scan(wpa_s, 0, 0);
126 }
127}
128
129
5cd47405
JM
130static struct wpa_bss * wpa_supplicant_get_new_bss(
131 struct wpa_supplicant *wpa_s, const u8 *bssid)
132{
133 struct wpa_bss *bss = NULL;
134 struct wpa_ssid *ssid = wpa_s->current_ssid;
135
136 if (ssid->ssid_len > 0)
137 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
138 if (!bss)
139 bss = wpa_bss_get_bssid(wpa_s, bssid);
140
141 return bss;
142}
143
144
068e3877
JM
145static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
146{
147 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
148
149 if (!bss) {
150 wpa_supplicant_update_scan_results(wpa_s);
151
152 /* Get the BSS from the new scan results */
153 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
154 }
155
156 if (bss)
157 wpa_s->current_bss = bss;
158}
159
160
6fc6879b
JM
161static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
162{
8bac466b 163 struct wpa_ssid *ssid, *old_ssid;
eaa8eefe 164 u8 drv_ssid[SSID_MAX_LEN];
c41d0840 165 size_t drv_ssid_len;
00e5e3d5 166 int res;
6fc6879b 167
068e3877
JM
168 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
169 wpa_supplicant_update_current_bss(wpa_s);
c41d0840
KV
170
171 if (wpa_s->current_ssid->ssid_len == 0)
172 return 0; /* current profile still in use */
173 res = wpa_drv_get_ssid(wpa_s, drv_ssid);
174 if (res < 0) {
175 wpa_msg(wpa_s, MSG_INFO,
176 "Failed to read SSID from driver");
177 return 0; /* try to use current profile */
178 }
179 drv_ssid_len = res;
180
181 if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
182 os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
183 drv_ssid_len) == 0)
184 return 0; /* current profile still in use */
185
186 wpa_msg(wpa_s, MSG_DEBUG,
187 "Driver-initiated BSS selection changed the SSID to %s",
188 wpa_ssid_txt(drv_ssid, drv_ssid_len));
189 /* continue selecting a new network profile */
068e3877 190 }
6fc6879b 191
f049052b
BG
192 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
193 "information");
6fc6879b
JM
194 ssid = wpa_supplicant_get_ssid(wpa_s);
195 if (ssid == NULL) {
f049052b
BG
196 wpa_msg(wpa_s, MSG_INFO,
197 "No network configuration found for the current AP");
6fc6879b
JM
198 return -1;
199 }
200
349493bd 201 if (wpas_network_disabled(wpa_s, ssid)) {
f049052b 202 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
6fc6879b
JM
203 return -1;
204 }
205
6407f413
JM
206 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
207 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
208 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
209 return -1;
210 }
211
00e5e3d5
JM
212 res = wpas_temp_disabled(wpa_s, ssid);
213 if (res > 0) {
214 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
215 "disabled for %d second(s)", res);
216 return -1;
217 }
218
f049052b
BG
219 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
220 "current AP");
0bf927a0 221 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
6fc6879b
JM
222 u8 wpa_ie[80];
223 size_t wpa_ie_len = sizeof(wpa_ie);
cbf61176
JM
224 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
225 wpa_ie, &wpa_ie_len) < 0)
226 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
6fc6879b
JM
227 } else {
228 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
229 }
230
231 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
232 eapol_sm_invalidate_cached_session(wpa_s->eapol);
8bac466b 233 old_ssid = wpa_s->current_ssid;
6fc6879b 234 wpa_s->current_ssid = ssid;
5cd47405 235
068e3877 236 wpa_supplicant_update_current_bss(wpa_s);
5cd47405 237
6fc6879b
JM
238 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
239 wpa_supplicant_initiate_eapol(wpa_s);
8bac466b
JM
240 if (old_ssid != wpa_s->current_ssid)
241 wpas_notify_network_changed(wpa_s);
6fc6879b
JM
242
243 return 0;
244}
245
246
01a17491 247void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
6fc6879b
JM
248{
249 struct wpa_supplicant *wpa_s = eloop_ctx;
250
251 if (wpa_s->countermeasures) {
252 wpa_s->countermeasures = 0;
253 wpa_drv_set_countermeasures(wpa_s, 0);
254 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
f1609f11
IP
255
256 /*
257 * It is possible that the device is sched scanning, which means
258 * that a connection attempt will be done only when we receive
259 * scan results. However, in this case, it would be preferable
260 * to scan and connect immediately, so cancel the sched_scan and
261 * issue a regular scan flow.
262 */
263 wpa_supplicant_cancel_sched_scan(wpa_s);
6fc6879b
JM
264 wpa_supplicant_req_scan(wpa_s, 0, 0);
265 }
266}
267
268
269void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
270{
8bac466b
JM
271 int bssid_changed;
272
b6668734
JM
273 wnm_bss_keep_alive_deinit(wpa_s);
274
78177a00
JM
275#ifdef CONFIG_IBSS_RSN
276 ibss_rsn_deinit(wpa_s->ibss_rsn);
277 wpa_s->ibss_rsn = NULL;
278#endif /* CONFIG_IBSS_RSN */
279
ca62e114
JM
280#ifdef CONFIG_AP
281 wpa_supplicant_ap_deinit(wpa_s);
282#endif /* CONFIG_AP */
283
8401a6b0
JM
284 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
285 return;
286
6fc6879b 287 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
8bac466b 288 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
6fc6879b
JM
289 os_memset(wpa_s->bssid, 0, ETH_ALEN);
290 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
4e70bbf1 291 sme_clear_on_disassoc(wpa_s);
be8be671 292 wpa_s->current_bss = NULL;
3c85f144 293 wpa_s->assoc_freq = 0;
8fd0f0f3 294
8bac466b
JM
295 if (bssid_changed)
296 wpas_notify_bssid_changed(wpa_s);
297
6fc6879b
JM
298 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
299 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
56586197 300 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
6fc6879b
JM
301 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
302 wpa_s->ap_ies_from_associnfo = 0;
0d30cc24 303 wpa_s->current_ssid = NULL;
25a8f9e3 304 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
0d30cc24 305 wpa_s->key_mgmt = 0;
b361d580
AK
306
307 wpas_rrm_reset(wpa_s);
03ed0a52 308 wpa_s->wnmsleep_used = 0;
6fc6879b
JM
309}
310
311
312static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
313{
314 struct wpa_ie_data ie;
315 int pmksa_set = -1;
316 size_t i;
317
318 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
319 ie.pmkid == NULL)
320 return;
321
322 for (i = 0; i < ie.num_pmkid; i++) {
323 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
324 ie.pmkid + i * PMKID_LEN,
325 NULL, NULL, 0);
326 if (pmksa_set == 0) {
ba422613 327 eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
6fc6879b
JM
328 break;
329 }
330 }
331
f049052b
BG
332 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
333 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
6fc6879b
JM
334}
335
336
337static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
338 union wpa_event_data *data)
339{
340 if (data == NULL) {
f049052b
BG
341 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
342 "event");
6fc6879b
JM
343 return;
344 }
f049052b
BG
345 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
346 " index=%d preauth=%d",
347 MAC2STR(data->pmkid_candidate.bssid),
348 data->pmkid_candidate.index,
349 data->pmkid_candidate.preauth);
6fc6879b
JM
350
351 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
352 data->pmkid_candidate.index,
353 data->pmkid_candidate.preauth);
354}
355
356
357static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
358{
359 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
360 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
361 return 0;
362
363#ifdef IEEE8021X_EAPOL
364 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
365 wpa_s->current_ssid &&
366 !(wpa_s->current_ssid->eapol_flags &
367 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
368 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
369 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
370 * plaintext or static WEP keys). */
371 return 0;
372 }
373#endif /* IEEE8021X_EAPOL */
374
375 return 1;
376}
377
378
379/**
380 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
381 * @wpa_s: pointer to wpa_supplicant data
382 * @ssid: Configuration data for the network
383 * Returns: 0 on success, -1 on failure
384 *
385 * This function is called when starting authentication with a network that is
386 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
387 */
388int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
389 struct wpa_ssid *ssid)
390{
391#ifdef IEEE8021X_EAPOL
b832d34c 392#ifdef PCSC_FUNCS
eb324600 393 int aka = 0, sim = 0;
6fc6879b 394
62f736dd
JT
395 if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
396 wpa_s->scard != NULL || wpa_s->conf->external_sim)
6fc6879b
JM
397 return 0;
398
62f736dd 399 if (ssid == NULL || ssid->eap.eap_methods == NULL) {
6fc6879b
JM
400 sim = 1;
401 aka = 1;
402 } else {
403 struct eap_method_type *eap = ssid->eap.eap_methods;
404 while (eap->vendor != EAP_VENDOR_IETF ||
405 eap->method != EAP_TYPE_NONE) {
406 if (eap->vendor == EAP_VENDOR_IETF) {
407 if (eap->method == EAP_TYPE_SIM)
408 sim = 1;
3d332fe7
JM
409 else if (eap->method == EAP_TYPE_AKA ||
410 eap->method == EAP_TYPE_AKA_PRIME)
6fc6879b
JM
411 aka = 1;
412 }
413 eap++;
414 }
415 }
416
417 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
418 sim = 0;
3d332fe7
JM
419 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
420 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
421 NULL)
6fc6879b
JM
422 aka = 0;
423
424 if (!sim && !aka) {
f049052b
BG
425 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
426 "use SIM, but neither EAP-SIM nor EAP-AKA are "
427 "enabled");
6fc6879b
JM
428 return 0;
429 }
430
f049052b
BG
431 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
432 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
eb324600 433
5a620604 434 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
6fc6879b 435 if (wpa_s->scard == NULL) {
f049052b
BG
436 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
437 "(pcsc-lite)");
6fc6879b
JM
438 return -1;
439 }
440 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
441 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
b832d34c 442#endif /* PCSC_FUNCS */
6fc6879b
JM
443#endif /* IEEE8021X_EAPOL */
444
445 return 0;
446}
447
448
449#ifndef CONFIG_NO_SCAN_PROCESSING
86bd1410
JM
450
451static int has_wep_key(struct wpa_ssid *ssid)
452{
453 int i;
454
455 for (i = 0; i < NUM_WEP_KEYS; i++) {
456 if (ssid->wep_key_len[i])
457 return 1;
458 }
459
460 return 0;
461}
462
463
620c7837 464static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
6fc6879b
JM
465 struct wpa_ssid *ssid)
466{
86bd1410 467 int privacy = 0;
6fc6879b
JM
468
469 if (ssid->mixed_cell)
470 return 1;
471
0632542b
AT
472#ifdef CONFIG_WPS
473 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
474 return 1;
475#endif /* CONFIG_WPS */
476
86bd1410
JM
477 if (has_wep_key(ssid))
478 privacy = 1;
479
6fc6879b
JM
480#ifdef IEEE8021X_EAPOL
481 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
482 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
483 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
484 privacy = 1;
485#endif /* IEEE8021X_EAPOL */
486
29fbc522
JM
487 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
488 privacy = 1;
489
df0f01d9
JM
490 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
491 privacy = 1;
492
6fc6879b
JM
493 if (bss->caps & IEEE80211_CAP_PRIVACY)
494 return privacy;
495 return !privacy;
496}
497
498
a6099152
JM
499static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
500 struct wpa_ssid *ssid,
620c7837 501 struct wpa_bss *bss)
6fc6879b
JM
502{
503 struct wpa_ie_data ie;
504 int proto_match = 0;
505 const u8 *rsn_ie, *wpa_ie;
351f09a2 506 int ret;
43882f1e 507 int wep_ok;
6fc6879b 508
a6099152 509 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
351f09a2
JM
510 if (ret >= 0)
511 return ret;
ad08c363 512
43882f1e
JM
513 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
514 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
515 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
516 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
517 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
518
620c7837 519 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
6fc6879b
JM
520 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
521 proto_match++;
522
523 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
f049052b
BG
524 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
525 "failed");
6fc6879b
JM
526 break;
527 }
43882f1e
JM
528
529 if (wep_ok &&
530 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
531 {
f049052b
BG
532 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
533 "in RSN IE");
43882f1e
JM
534 return 1;
535 }
536
6fc6879b 537 if (!(ie.proto & ssid->proto)) {
f049052b
BG
538 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
539 "mismatch");
6fc6879b
JM
540 break;
541 }
542
543 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
f049052b
BG
544 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
545 "cipher mismatch");
6fc6879b
JM
546 break;
547 }
548
549 if (!(ie.group_cipher & ssid->group_cipher)) {
f049052b
BG
550 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
551 "cipher mismatch");
6fc6879b
JM
552 break;
553 }
554
555 if (!(ie.key_mgmt & ssid->key_mgmt)) {
f049052b
BG
556 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
557 "mismatch");
6fc6879b
JM
558 break;
559 }
560
561#ifdef CONFIG_IEEE80211W
0b60b0aa 562 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
3f56a2b7 563 wpas_get_ssid_pmf(wpa_s, ssid) ==
62d49803 564 MGMT_FRAME_PROTECTION_REQUIRED) {
f049052b
BG
565 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
566 "frame protection");
6fc6879b
JM
567 break;
568 }
569#endif /* CONFIG_IEEE80211W */
fa464267
JM
570 if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
571 wpas_get_ssid_pmf(wpa_s, ssid) ==
572 NO_MGMT_FRAME_PROTECTION) {
573 wpa_dbg(wpa_s, MSG_DEBUG,
574 " skip RSN IE - no mgmt frame protection enabled but AP requires it");
575 break;
576 }
940491ce
JM
577#ifdef CONFIG_MBO
578 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
579 wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND) &&
580 wpas_get_ssid_pmf(wpa_s, ssid) !=
581 NO_MGMT_FRAME_PROTECTION) {
582 wpa_dbg(wpa_s, MSG_DEBUG,
583 " skip RSN IE - no mgmt frame protection enabled on MBO AP");
584 break;
585 }
586#endif /* CONFIG_MBO */
6fc6879b 587
f049052b 588 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
6fc6879b
JM
589 return 1;
590 }
591
620c7837 592 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
6fc6879b
JM
593 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
594 proto_match++;
595
596 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
f049052b
BG
597 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
598 "failed");
6fc6879b
JM
599 break;
600 }
43882f1e
JM
601
602 if (wep_ok &&
603 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
604 {
f049052b
BG
605 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
606 "in WPA IE");
43882f1e
JM
607 return 1;
608 }
609
6fc6879b 610 if (!(ie.proto & ssid->proto)) {
f049052b
BG
611 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
612 "mismatch");
6fc6879b
JM
613 break;
614 }
615
616 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
f049052b
BG
617 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
618 "cipher mismatch");
6fc6879b
JM
619 break;
620 }
621
622 if (!(ie.group_cipher & ssid->group_cipher)) {
f049052b
BG
623 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
624 "cipher mismatch");
6fc6879b
JM
625 break;
626 }
627
628 if (!(ie.key_mgmt & ssid->key_mgmt)) {
f049052b
BG
629 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
630 "mismatch");
6fc6879b
JM
631 break;
632 }
633
f049052b 634 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
6fc6879b
JM
635 return 1;
636 }
637
a3f7e518
JM
638 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
639 !rsn_ie) {
640 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
641 return 1;
642 }
643
cc5e390d 644 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
df83fb7d 645 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
f049052b 646 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
cc5e390d
JM
647 return 0;
648 }
6fc6879b 649
df0f01d9
JM
650 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
651 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
652 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
653 return 1;
654 }
655
c2f1fe41
JM
656 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
657 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
658 return 1;
659 }
660
661 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
662 "WPA/WPA2");
663
664 return 0;
6fc6879b
JM
665}
666
667
b766a9a2
JM
668static int freq_allowed(int *freqs, int freq)
669{
670 int i;
671
672 if (freqs == NULL)
673 return 1;
674
675 for (i = 0; freqs[i]; i++)
676 if (freqs[i] == freq)
677 return 1;
678 return 0;
679}
680
681
620c7837 682static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
e1e8cae3
CL
683{
684 const struct hostapd_hw_modes *mode = NULL, *modes;
685 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
686 const u8 *rate_ie;
687 int i, j, k;
688
a6d94e1b
JM
689 if (bss->freq == 0)
690 return 1; /* Cannot do matching without knowing band */
691
e1e8cae3
CL
692 modes = wpa_s->hw.modes;
693 if (modes == NULL) {
694 /*
695 * The driver does not provide any additional information
696 * about the utilized hardware, so allow the connection attempt
697 * to continue.
698 */
699 return 1;
700 }
701
702 for (i = 0; i < wpa_s->hw.num_modes; i++) {
703 for (j = 0; j < modes[i].num_channels; j++) {
704 int freq = modes[i].channels[j].freq;
705 if (freq == bss->freq) {
706 if (mode &&
707 mode->mode == HOSTAPD_MODE_IEEE80211G)
708 break; /* do not allow 802.11b replace
709 * 802.11g */
710 mode = &modes[i];
711 break;
712 }
713 }
714 }
715
716 if (mode == NULL)
717 return 0;
718
719 for (i = 0; i < (int) sizeof(scan_ie); i++) {
620c7837 720 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
e1e8cae3
CL
721 if (rate_ie == NULL)
722 continue;
723
724 for (j = 2; j < rate_ie[1] + 2; j++) {
725 int flagged = !!(rate_ie[j] & 0x80);
726 int r = (rate_ie[j] & 0x7f) * 5;
727
728 /*
729 * IEEE Std 802.11n-2009 7.3.2.2:
730 * The new BSS Membership selector value is encoded
731 * like a legacy basic rate, but it is not a rate and
732 * only indicates if the BSS members are required to
733 * support the mandatory features of Clause 20 [HT PHY]
734 * in order to join the BSS.
735 */
736 if (flagged && ((rate_ie[j] & 0x7f) ==
737 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
738 if (!ht_supported(mode)) {
739 wpa_dbg(wpa_s, MSG_DEBUG,
740 " hardware does not support "
741 "HT PHY");
742 return 0;
743 }
744 continue;
745 }
746
c8ebeda4
MK
747 /* There's also a VHT selector for 802.11ac */
748 if (flagged && ((rate_ie[j] & 0x7f) ==
749 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
750 if (!vht_supported(mode)) {
751 wpa_dbg(wpa_s, MSG_DEBUG,
752 " hardware does not support "
753 "VHT PHY");
754 return 0;
755 }
756 continue;
757 }
758
e1e8cae3
CL
759 if (!flagged)
760 continue;
761
762 /* check for legacy basic rates */
763 for (k = 0; k < mode->num_rates; k++) {
764 if (mode->rates[k] == r)
765 break;
766 }
767 if (k == mode->num_rates) {
768 /*
769 * IEEE Std 802.11-2007 7.3.2.2 demands that in
770 * order to join a BSS all required rates
771 * have to be supported by the hardware.
772 */
1d246a1d
JM
773 wpa_dbg(wpa_s, MSG_DEBUG,
774 " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
775 r / 10, r % 10,
776 bss->freq, mode->mode, mode->num_rates);
e1e8cae3
CL
777 return 0;
778 }
779 }
780 }
781
782 return 1;
783}
784
785
ff3ad3c5
VK
786/*
787 * Test whether BSS is in an ESS.
788 * This is done differently in DMG (60 GHz) and non-DMG bands
789 */
790static int bss_is_ess(struct wpa_bss *bss)
791{
792 if (bss_is_dmg(bss)) {
793 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
794 IEEE80211_CAP_DMG_AP;
795 }
796
797 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
798 IEEE80211_CAP_ESS);
799}
800
801
79cd993a
ST
802static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
803{
804 size_t i;
805
806 for (i = 0; i < ETH_ALEN; i++) {
807 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
808 return 0;
809 }
810 return 1;
811}
812
813
b83e4554
ST
814static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
815{
816 size_t i;
817
818 for (i = 0; i < num; i++) {
79cd993a
ST
819 const u8 *a = list + i * ETH_ALEN * 2;
820 const u8 *m = a + ETH_ALEN;
b83e4554 821
79cd993a 822 if (match_mac_mask(a, addr, m))
b83e4554
ST
823 return 1;
824 }
825 return 0;
826}
827
828
84d1c0fd
AS
829struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
830 int i, struct wpa_bss *bss,
831 struct wpa_ssid *group,
832 int only_first_ssid)
6fc6879b 833{
620c7837 834 u8 wpa_ie_len, rsn_ie_len;
d8d940b7 835 int wpa;
6fc6879b
JM
836 struct wpa_blacklist *e;
837 const u8 *ie;
d8d940b7 838 struct wpa_ssid *ssid;
df0f01d9 839 int osen;
cb06cf34
DS
840#ifdef CONFIG_MBO
841 const u8 *assoc_disallow;
842#endif /* CONFIG_MBO */
6fc6879b 843
620c7837 844 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
d8d940b7 845 wpa_ie_len = ie ? ie[1] : 0;
6fc6879b 846
620c7837 847 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
d8d940b7 848 rsn_ie_len = ie ? ie[1] : 0;
6fc6879b 849
df0f01d9
JM
850 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
851 osen = ie != NULL;
852
f049052b 853 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
dcc8bc82 854 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
620c7837 855 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
dcc8bc82 856 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, bss->freq,
b16696ff
JM
857 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "",
858 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
859 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ?
df0f01d9
JM
860 " p2p" : "",
861 osen ? " osen=1" : "");
9cf32261 862
d8d940b7 863 e = wpa_blacklist_get(wpa_s, bss->bssid);
5471c343
JM
864 if (e) {
865 int limit = 1;
349493bd 866 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
5471c343
JM
867 /*
868 * When only a single network is enabled, we can
869 * trigger blacklisting on the first failure. This
870 * should not be done with multiple enabled networks to
871 * avoid getting forced to move into a worse ESS on
872 * single error if there are no other BSSes of the
873 * current ESS.
874 */
875 limit = 0;
876 }
877 if (e->count > limit) {
f049052b
BG
878 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
879 "(count=%d limit=%d)", e->count, limit);
c2197bc9 880 return NULL;
5471c343 881 }
d8d940b7 882 }
6fc6879b 883
620c7837 884 if (bss->ssid_len == 0) {
f049052b 885 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
c2197bc9 886 return NULL;
d8d940b7 887 }
e81634cd 888
6407f413
JM
889 if (disallowed_bssid(wpa_s, bss->bssid)) {
890 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
891 return NULL;
892 }
893
894 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
895 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
896 return NULL;
897 }
898
d8d940b7 899 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
6fc6879b 900
3d910ef4 901 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
d8d940b7 902 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
00e5e3d5 903 int res;
ad08c363 904
349493bd 905 if (wpas_network_disabled(wpa_s, ssid)) {
f049052b 906 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
0c703df3 907 continue;
d8d940b7 908 }
9cf32261 909
00e5e3d5
JM
910 res = wpas_temp_disabled(wpa_s, ssid);
911 if (res > 0) {
912 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
913 "temporarily for %d second(s)", res);
914 continue;
915 }
916
ad08c363 917#ifdef CONFIG_WPS
f648bc7d 918 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
f049052b
BG
919 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
920 "(WPS)");
f648bc7d
JM
921 continue;
922 }
923
d8d940b7
JM
924 if (wpa && ssid->ssid_len == 0 &&
925 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
926 check_ssid = 0;
927
928 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
929 /* Only allow wildcard SSID match if an AP
930 * advertises active WPS operation that matches
931 * with our mode. */
932 check_ssid = 1;
ad08c363 933 if (ssid->ssid_len == 0 &&
a6099152 934 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
ad08c363 935 check_ssid = 0;
d8d940b7 936 }
ad08c363
JM
937#endif /* CONFIG_WPS */
938
7d232e23
ZC
939 if (ssid->bssid_set && ssid->ssid_len == 0 &&
940 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
941 check_ssid = 0;
942
d8d940b7 943 if (check_ssid &&
620c7837
JM
944 (bss->ssid_len != ssid->ssid_len ||
945 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
f049052b 946 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
0c703df3 947 continue;
6fc6879b 948 }
6fc6879b 949
d8d940b7
JM
950 if (ssid->bssid_set &&
951 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
f049052b 952 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
0c703df3 953 continue;
d8d940b7 954 }
6fc6879b 955
b83e4554
ST
956 /* check blacklist */
957 if (ssid->num_bssid_blacklist &&
958 addr_in_list(bss->bssid, ssid->bssid_blacklist,
959 ssid->num_bssid_blacklist)) {
960 wpa_dbg(wpa_s, MSG_DEBUG,
961 " skip - BSSID blacklisted");
962 continue;
963 }
964
965 /* if there is a whitelist, only accept those APs */
966 if (ssid->num_bssid_whitelist &&
967 !addr_in_list(bss->bssid, ssid->bssid_whitelist,
968 ssid->num_bssid_whitelist)) {
969 wpa_dbg(wpa_s, MSG_DEBUG,
970 " skip - BSSID not in whitelist");
971 continue;
972 }
973
cc5e390d 974 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
0c703df3 975 continue;
9cf32261 976
df0f01d9 977 if (!osen && !wpa &&
d8d940b7
JM
978 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
979 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
980 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
f049052b
BG
981 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
982 "not allowed");
0c703df3 983 continue;
6fc6879b 984 }
9cf32261 985
86bd1410
JM
986 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
987 has_wep_key(ssid)) {
988 wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block");
989 continue;
990 }
991
df0f01d9
JM
992 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) {
993 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-OSEN network "
994 "not allowed");
995 continue;
996 }
997
29fbc522 998 if (!wpa_supplicant_match_privacy(bss, ssid)) {
f049052b
BG
999 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
1000 "mismatch");
0c703df3 1001 continue;
e81634cd
JM
1002 }
1003
b9074912
LD
1004 if (!bss_is_ess(bss) && !bss_is_pbss(bss)) {
1005 wpa_dbg(wpa_s, MSG_DEBUG, " skip - neither ESS nor PBSS network");
1006 continue;
1007 }
1008
1009 if (ssid->pbss != bss_is_pbss(bss)) {
1010 wpa_dbg(wpa_s, MSG_DEBUG, " skip - PBSS mismatch (ssid %d bss %d)",
1011 ssid->pbss, bss_is_pbss(bss));
0c703df3 1012 continue;
d8d940b7 1013 }
b766a9a2 1014
d8d940b7 1015 if (!freq_allowed(ssid->freq_list, bss->freq)) {
f049052b
BG
1016 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
1017 "allowed");
0c703df3 1018 continue;
6fc6879b 1019 }
d8d940b7 1020
e1e8cae3
CL
1021 if (!rate_match(wpa_s, bss)) {
1022 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
1023 "not match");
1024 continue;
1025 }
1026
73e49269 1027#ifdef CONFIG_P2P
b72e14e5
JM
1028 if (ssid->p2p_group &&
1029 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1030 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1031 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
1032 continue;
1033 }
1034
9ec87666
JM
1035 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1036 struct wpabuf *p2p_ie;
1037 u8 dev_addr[ETH_ALEN];
1038
1039 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1040 if (ie == NULL) {
1041 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element");
1042 continue;
1043 }
1044 p2p_ie = wpa_bss_get_vendor_ie_multi(
1045 bss, P2P_IE_VENDOR_TYPE);
1046 if (p2p_ie == NULL) {
1047 wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element");
1048 continue;
1049 }
1050
1051 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
1052 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
1053 ETH_ALEN) != 0) {
1054 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element");
1055 wpabuf_free(p2p_ie);
1056 continue;
1057 }
1058 wpabuf_free(p2p_ie);
1059 }
1060
73e49269
JM
1061 /*
1062 * TODO: skip the AP if its P2P IE has Group Formation
1063 * bit set in the P2P Group Capability Bitmap and we
1064 * are not in Group Formation with that device.
1065 */
1066#endif /* CONFIG_P2P */
1067
dfaf11d6
JM
1068 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time))
1069 {
1070 struct os_reltime diff;
1071
1072 os_reltime_sub(&wpa_s->scan_min_time,
1073 &bss->last_update, &diff);
1074 wpa_dbg(wpa_s, MSG_DEBUG,
1075 " skip - scan result not recent enough (%u.%06u seconds too old)",
1076 (unsigned int) diff.sec,
1077 (unsigned int) diff.usec);
1078 continue;
1079 }
cb06cf34
DS
1080#ifdef CONFIG_MBO
1081 assoc_disallow = wpas_mbo_get_bss_attr(
1082 bss, MBO_ATTR_ID_ASSOC_DISALLOW);
1083 if (assoc_disallow && assoc_disallow[1] >= 1) {
1084 wpa_dbg(wpa_s, MSG_DEBUG,
1085 " skip - MBO association disallowed (reason %u)",
1086 assoc_disallow[2]);
1087 continue;
1088 }
dd599908
AS
1089
1090 if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) {
1091 wpa_dbg(wpa_s, MSG_DEBUG,
1092 " skip - MBO retry delay has not passed yet");
1093 continue;
1094 }
cb06cf34 1095#endif /* CONFIG_MBO */
dfaf11d6 1096
d8d940b7
JM
1097 /* Matching configuration found */
1098 return ssid;
6fc6879b
JM
1099 }
1100
d8d940b7 1101 /* No matching configuration found */
c2197bc9 1102 return NULL;
9cf32261
JM
1103}
1104
1105
6fa81a3b 1106static struct wpa_bss *
a1fd2ce5 1107wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
a1fd2ce5 1108 struct wpa_ssid *group,
3d910ef4
JM
1109 struct wpa_ssid **selected_ssid,
1110 int only_first_ssid)
9cf32261 1111{
620c7837 1112 unsigned int i;
9cf32261 1113
3d910ef4
JM
1114 if (only_first_ssid)
1115 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1116 group->id);
1117 else
1118 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1119 group->priority);
9cf32261 1120
620c7837
JM
1121 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1122 struct wpa_bss *bss = wpa_s->last_scan_res[i];
3d910ef4
JM
1123 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1124 only_first_ssid);
d8d940b7
JM
1125 if (!*selected_ssid)
1126 continue;
f049052b
BG
1127 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
1128 " ssid='%s'",
620c7837
JM
1129 MAC2STR(bss->bssid),
1130 wpa_ssid_txt(bss->ssid, bss->ssid_len));
1131 return bss;
d8d940b7
JM
1132 }
1133
1134 return NULL;
6fc6879b
JM
1135}
1136
1137
97236cee
MH
1138struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1139 struct wpa_ssid **selected_ssid)
6fc6879b 1140{
6fa81a3b 1141 struct wpa_bss *selected = NULL;
09b9df4e 1142 int prio;
7c373ac2 1143 struct wpa_ssid *next_ssid = NULL;
a52410c2 1144 struct wpa_ssid *ssid;
09b9df4e 1145
620c7837
JM
1146 if (wpa_s->last_scan_res == NULL ||
1147 wpa_s->last_scan_res_used == 0)
1148 return NULL; /* no scan results from last update */
1149
7c373ac2 1150 if (wpa_s->next_ssid) {
7c373ac2
JM
1151 /* check that next_ssid is still valid */
1152 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1153 if (ssid == wpa_s->next_ssid)
1154 break;
1155 }
1156 next_ssid = ssid;
1157 wpa_s->next_ssid = NULL;
1158 }
3d910ef4 1159
7c373ac2
JM
1160 while (selected == NULL) {
1161 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1162 if (next_ssid && next_ssid->priority ==
1163 wpa_s->conf->pssid[prio]->priority) {
3d910ef4 1164 selected = wpa_supplicant_select_bss(
7c373ac2 1165 wpa_s, next_ssid, selected_ssid, 1);
3d910ef4
JM
1166 if (selected)
1167 break;
1168 }
09b9df4e 1169 selected = wpa_supplicant_select_bss(
620c7837 1170 wpa_s, wpa_s->conf->pssid[prio],
3d910ef4 1171 selected_ssid, 0);
09b9df4e
JM
1172 if (selected)
1173 break;
1174 }
1175
8945cc45
BM
1176 if (selected == NULL && wpa_s->blacklist &&
1177 !wpa_s->countermeasures) {
f049052b
BG
1178 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1179 "blacklist and try again");
09b9df4e
JM
1180 wpa_blacklist_clear(wpa_s);
1181 wpa_s->blacklist_cleared++;
1182 } else if (selected == NULL)
1183 break;
1184 }
1185
a52410c2
JM
1186 ssid = *selected_ssid;
1187 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1188 !ssid->passphrase && !ssid->ext_psk) {
1189 const char *field_name, *txt = NULL;
1190
1191 wpa_dbg(wpa_s, MSG_DEBUG,
1192 "PSK/passphrase not yet available for the selected network");
1193
1194 wpas_notify_network_request(wpa_s, ssid,
1195 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1196
1197 field_name = wpa_supplicant_ctrl_req_to_string(
1198 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1199 if (field_name == NULL)
1200 return NULL;
1201
1202 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1203
1204 selected = NULL;
1205 }
1206
09b9df4e
JM
1207 return selected;
1208}
1209
1210
1211static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
977b1174 1212 int timeout_sec, int timeout_usec)
09b9df4e 1213{
349493bd 1214 if (!wpa_supplicant_enabled_networks(wpa_s)) {
4f34d51a
SL
1215 /*
1216 * No networks are enabled; short-circuit request so
1217 * we don't wait timeout seconds before transitioning
1218 * to INACTIVE state.
1219 */
ac06fb12
JM
1220 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1221 "since there are no enabled networks");
4f34d51a
SL
1222 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1223 return;
09b9df4e 1224 }
5cc70322
JM
1225
1226 wpa_s->scan_for_connection = 1;
977b1174 1227 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
09b9df4e
JM
1228}
1229
1230
5cbd88d9
JJ
1231int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1232 struct wpa_bss *selected,
1233 struct wpa_ssid *ssid)
09b9df4e
JM
1234{
1235 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1236 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1237 "PBC session overlap");
1a2f7ca1 1238 wpas_notify_wps_event_pbc_overlap(wpa_s);
b73bf0a7 1239#ifdef CONFIG_P2P
ace0fbdb
AS
1240 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1241 wpa_s->p2p_in_provisioning) {
1242 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1243 wpa_s, NULL);
5cbd88d9 1244 return -1;
ace0fbdb 1245 }
b73bf0a7 1246#endif /* CONFIG_P2P */
199716ad
BG
1247
1248#ifdef CONFIG_WPS
0a7b2a02 1249 wpas_wps_pbc_overlap(wpa_s);
7736f18b 1250 wpas_wps_cancel(wpa_s);
199716ad 1251#endif /* CONFIG_WPS */
5cbd88d9 1252 return -1;
09b9df4e
JM
1253 }
1254
b0680017
JM
1255 wpa_msg(wpa_s, MSG_DEBUG,
1256 "Considering connect request: reassociate: %d selected: "
1257 MACSTR " bssid: " MACSTR " pending: " MACSTR
1258 " wpa_state: %s ssid=%p current_ssid=%p",
1259 wpa_s->reassociate, MAC2STR(selected->bssid),
1260 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1261 wpa_supplicant_state_txt(wpa_s->wpa_state),
1262 ssid, wpa_s->current_ssid);
1263
09b9df4e
JM
1264 /*
1265 * Do not trigger new association unless the BSSID has changed or if
1266 * reassociation is requested. If we are in process of associating with
1267 * the selected BSSID, do not trigger new attempt.
1268 */
1269 if (wpa_s->reassociate ||
1270 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
e29853bb
BG
1271 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1272 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
b0680017
JM
1273 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1274 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1275 0) ||
1276 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1277 ssid != wpa_s->current_ssid)))) {
09b9df4e 1278 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
977b1174 1279 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
5cbd88d9 1280 return 0;
09b9df4e 1281 }
b0680017
JM
1282 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1283 MAC2STR(selected->bssid));
09b9df4e
JM
1284 wpa_supplicant_associate(wpa_s, selected, ssid);
1285 } else {
b0680017
JM
1286 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1287 "connect with the selected AP");
09b9df4e 1288 }
5cbd88d9
JJ
1289
1290 return 0;
09b9df4e
JM
1291}
1292
1293
b55aaa5f
JM
1294static struct wpa_ssid *
1295wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1296{
1297 int prio;
1298 struct wpa_ssid *ssid;
1299
1300 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1301 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1302 {
349493bd 1303 if (wpas_network_disabled(wpa_s, ssid))
b55aaa5f
JM
1304 continue;
1305 if (ssid->mode == IEEE80211_MODE_IBSS ||
476e6bb6
TP
1306 ssid->mode == IEEE80211_MODE_AP ||
1307 ssid->mode == IEEE80211_MODE_MESH)
b55aaa5f
JM
1308 return ssid;
1309 }
1310 }
1311 return NULL;
1312}
1313
1314
a1fd2ce5
JM
1315/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1316 * on BSS added and BSS changed events */
6ae93185 1317static void wpa_supplicant_rsn_preauth_scan_results(
6d28fb96 1318 struct wpa_supplicant *wpa_s)
6ae93185 1319{
6d28fb96 1320 struct wpa_bss *bss;
6ae93185
JM
1321
1322 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1323 return;
1324
6d28fb96 1325 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
6ae93185 1326 const u8 *ssid, *rsn;
6ae93185 1327
6d28fb96 1328 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
6ae93185
JM
1329 if (ssid == NULL)
1330 continue;
1331
6d28fb96 1332 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
6ae93185
JM
1333 if (rsn == NULL)
1334 continue;
1335
6d28fb96 1336 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
6ae93185
JM
1337 }
1338
1339}
1340
1341
48563d86
JM
1342static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1343 struct wpa_bss *selected,
20ed5e40 1344 struct wpa_ssid *ssid)
48563d86 1345{
20ed5e40 1346 struct wpa_bss *current_bss = NULL;
ce18c107 1347#ifndef CONFIG_NO_ROAMING
48563d86 1348 int min_diff;
954e10e4 1349 int to_5ghz;
ce18c107 1350#endif /* CONFIG_NO_ROAMING */
48563d86
JM
1351
1352 if (wpa_s->reassociate)
1353 return 1; /* explicit request to reassociate */
1354 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1355 return 1; /* we are not associated; continue */
1356 if (wpa_s->current_ssid == NULL)
1357 return 1; /* unknown current SSID */
1358 if (wpa_s->current_ssid != ssid)
1359 return 1; /* different network block */
1360
22628eca
JM
1361 if (wpas_driver_bss_selection(wpa_s))
1362 return 0; /* Driver-based roaming */
1363
20ed5e40
JM
1364 if (wpa_s->current_ssid->ssid)
1365 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1366 wpa_s->current_ssid->ssid,
1367 wpa_s->current_ssid->ssid_len);
1368 if (!current_bss)
1369 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
48563d86
JM
1370
1371 if (!current_bss)
1372 return 1; /* current BSS not seen in scan results */
1373
20ed5e40
JM
1374 if (current_bss == selected)
1375 return 0;
1376
1377 if (selected->last_update_idx > current_bss->last_update_idx)
1378 return 1; /* current BSS not seen in the last scan */
1379
e9af53ad 1380#ifndef CONFIG_NO_ROAMING
f049052b 1381 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
0d2030ee
JM
1382 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1383 " level=%d snr=%d est_throughput=%u",
1384 MAC2STR(current_bss->bssid), current_bss->level,
1385 current_bss->snr, current_bss->est_throughput);
1386 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1387 " level=%d snr=%d est_throughput=%u",
1388 MAC2STR(selected->bssid), selected->level,
1389 selected->snr, selected->est_throughput);
48563d86 1390
ac26ebd8
JM
1391 if (wpa_s->current_ssid->bssid_set &&
1392 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1393 0) {
f049052b
BG
1394 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1395 "has preferred BSSID");
ac26ebd8
JM
1396 return 1;
1397 }
1398
0d2030ee
JM
1399 if (selected->est_throughput > current_bss->est_throughput + 5000) {
1400 wpa_dbg(wpa_s, MSG_DEBUG,
1401 "Allow reassociation - selected BSS has better estimated throughput");
1402 return 1;
1403 }
1404
954e10e4
JM
1405 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000;
1406
1407 if (current_bss->level < 0 &&
1408 current_bss->level > selected->level + to_5ghz * 2) {
bff954e9
RS
1409 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1410 "signal level");
1411 return 0;
1412 }
1413
48563d86
JM
1414 min_diff = 2;
1415 if (current_bss->level < 0) {
1416 if (current_bss->level < -85)
1417 min_diff = 1;
1418 else if (current_bss->level < -80)
1419 min_diff = 2;
1420 else if (current_bss->level < -75)
1421 min_diff = 3;
1422 else if (current_bss->level < -70)
1423 min_diff = 4;
1424 else
1425 min_diff = 5;
1426 }
954e10e4
JM
1427 if (to_5ghz) {
1428 /* Make it easier to move to 5 GHz band */
1429 if (min_diff > 2)
1430 min_diff -= 2;
1431 else
1432 min_diff = 0;
1433 }
48563d86 1434 if (abs(current_bss->level - selected->level) < min_diff) {
f049052b
BG
1435 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1436 "in signal level");
48563d86
JM
1437 return 0;
1438 }
1439
1440 return 1;
e9af53ad
DS
1441#else /* CONFIG_NO_ROAMING */
1442 return 0;
1443#endif /* CONFIG_NO_ROAMING */
48563d86
JM
1444}
1445
cd2f4ddf 1446
0dd54313 1447/* Return != 0 if no scan results could be fetched or if scan results should not
10ac7ddf 1448 * be shared with other virtual interfaces. */
e1504976 1449static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
cfd31b50
JM
1450 union wpa_event_data *data,
1451 int own_request)
09b9df4e 1452{
d12a51b5
JM
1453 struct wpa_scan_results *scan_res = NULL;
1454 int ret = 0;
5bc0cdb7 1455 int ap = 0;
7b1aa4fe
JM
1456#ifndef CONFIG_NO_RANDOM_POOL
1457 size_t i, num;
1458#endif /* CONFIG_NO_RANDOM_POOL */
5bc0cdb7
JM
1459
1460#ifdef CONFIG_AP
1461 if (wpa_s->ap_iface)
1462 ap = 1;
1463#endif /* CONFIG_AP */
6fc6879b 1464
cb8564b1
DW
1465 wpa_supplicant_notify_scanning(wpa_s, 0);
1466
a1fd2ce5
JM
1467 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1468 data ? &data->scan_info :
1469 NULL, 1);
1470 if (scan_res == NULL) {
66fe0f70
DS
1471 if (wpa_s->conf->ap_scan == 2 || ap ||
1472 wpa_s->scan_res_handler == scan_only_handler)
e1504976 1473 return -1;
cfd31b50
JM
1474 if (!own_request)
1475 return -1;
adcd7c4b
KV
1476 if (data && data->scan_info.external_scan)
1477 return -1;
f049052b
BG
1478 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1479 "scanning again");
977b1174 1480 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
d12a51b5
JM
1481 ret = -1;
1482 goto scan_work_done;
6fc6879b
JM
1483 }
1484
bbb921da 1485#ifndef CONFIG_NO_RANDOM_POOL
bbb921da
JM
1486 num = scan_res->num;
1487 if (num > 10)
1488 num = 10;
1489 for (i = 0; i < num; i++) {
1490 u8 buf[5];
1491 struct wpa_scan_res *res = scan_res->res[i];
1492 buf[0] = res->bssid[5];
1493 buf[1] = res->qual & 0xff;
1494 buf[2] = res->noise & 0xff;
1495 buf[3] = res->level & 0xff;
1496 buf[4] = res->tsf & 0xff;
1497 random_add_randomness(buf, sizeof(buf));
1498 }
1499#endif /* CONFIG_NO_RANDOM_POOL */
1500
06f9acce 1501 if (own_request && wpa_s->scan_res_handler &&
adcd7c4b 1502 !(data && data->scan_info.external_scan)) {
860fddbb
JB
1503 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1504 struct wpa_scan_results *scan_res);
1505
1506 scan_res_handler = wpa_s->scan_res_handler;
64e58f51 1507 wpa_s->scan_res_handler = NULL;
860fddbb 1508 scan_res_handler(wpa_s, scan_res);
d12a51b5
JM
1509 ret = -2;
1510 goto scan_work_done;
64e58f51
JM
1511 }
1512
5bc0cdb7 1513 if (ap) {
f049052b 1514 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
c202f19c
JB
1515#ifdef CONFIG_AP
1516 if (wpa_s->ap_iface->scan_cb)
1517 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1518#endif /* CONFIG_AP */
d12a51b5 1519 goto scan_work_done;
5bc0cdb7
JM
1520 }
1521
a5f40eff 1522 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
adcd7c4b
KV
1523 wpa_s->own_scan_running,
1524 data ? data->scan_info.external_scan : 0);
d81c73be 1525 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
adcd7c4b
KV
1526 wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
1527 own_request && !(data && data->scan_info.external_scan)) {
d81c73be
JM
1528 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1529 wpa_s->manual_scan_id);
1530 wpa_s->manual_scan_use_id = 0;
1531 } else {
1532 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1533 }
24f76940 1534 wpas_notify_scan_results(wpa_s);
6fc6879b 1535
8bac466b
JM
1536 wpas_notify_scan_done(wpa_s, 1);
1537
adcd7c4b 1538 if (data && data->scan_info.external_scan) {
015af91f
JM
1539 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1540 wpa_scan_results_free(scan_res);
1541 return 0;
1542 }
1543
75d65857 1544 if (wnm_scan_process(wpa_s, 1) > 0)
d0b9ab69
JM
1545 goto scan_work_done;
1546
d12a51b5
JM
1547 if (sme_proc_obss_scan(wpa_s) > 0)
1548 goto scan_work_done;
c3701c66 1549
d12a51b5
JM
1550 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1551 goto scan_work_done;
6fc6879b 1552
d12a51b5
JM
1553 if (autoscan_notify_scan(wpa_s, scan_res))
1554 goto scan_work_done;
7c865c68 1555
3180d7a2
SO
1556 if (wpa_s->disconnected) {
1557 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
d12a51b5 1558 goto scan_work_done;
3180d7a2
SO
1559 }
1560
22628eca 1561 if (!wpas_driver_bss_selection(wpa_s) &&
d12a51b5
JM
1562 bgscan_notify_scan(wpa_s, scan_res) == 1)
1563 goto scan_work_done;
a1fd2ce5 1564
f9f0526b
JM
1565 wpas_wps_update_ap_info(wpa_s, scan_res);
1566
706e11a4
AN
1567 if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
1568 wpa_s->wpa_state < WPA_COMPLETED)
1569 goto scan_work_done;
1570
20ed5e40
JM
1571 wpa_scan_results_free(scan_res);
1572
adcd7c4b 1573 if (own_request && wpa_s->scan_work) {
d12a51b5
JM
1574 struct wpa_radio_work *work = wpa_s->scan_work;
1575 wpa_s->scan_work = NULL;
1576 radio_work_done(work);
1577 }
1578
cc4952ad 1579 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
d12a51b5
JM
1580
1581scan_work_done:
1582 wpa_scan_results_free(scan_res);
adcd7c4b 1583 if (own_request && wpa_s->scan_work) {
d12a51b5
JM
1584 struct wpa_radio_work *work = wpa_s->scan_work;
1585 wpa_s->scan_work = NULL;
1586 radio_work_done(work);
1587 }
1588 return ret;
a594e2a9
JM
1589}
1590
1591
06b7f58d 1592static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
cc4952ad 1593 int new_scan, int own_request)
a594e2a9
JM
1594{
1595 struct wpa_bss *selected;
1596 struct wpa_ssid *ssid = NULL;
9bd566a3
AS
1597 int time_to_reenable = wpas_reenabled_network_time(wpa_s);
1598
1599 if (time_to_reenable > 0) {
1600 wpa_dbg(wpa_s, MSG_DEBUG,
1601 "Postpone network selection by %d seconds since all networks are disabled",
1602 time_to_reenable);
1603 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
1604 eloop_register_timeout(time_to_reenable, 0,
1605 wpas_network_reenabled, wpa_s, NULL);
1606 return 0;
1607 }
a594e2a9 1608
44b9ea5b
JM
1609 if (wpa_s->p2p_mgmt)
1610 return 0; /* no normal connection on p2p_mgmt interface */
1611
620c7837
JM
1612 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1613
6fc6879b 1614 if (selected) {
48563d86 1615 int skip;
20ed5e40 1616 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1bbff09e 1617 if (skip) {
06b7f58d
JM
1618 if (new_scan)
1619 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
e1504976 1620 return 0;
1bbff09e 1621 }
5cbd88d9 1622
0e6a2cf2
AB
1623 if (ssid != wpa_s->current_ssid &&
1624 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1625 wpa_s->own_disconnect_req = 1;
1626 wpa_supplicant_deauthenticate(
1627 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1628 }
1629
5cbd88d9
JJ
1630 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1631 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1632 return -1;
1633 }
06b7f58d
JM
1634 if (new_scan)
1635 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
0dd54313
JM
1636 /*
1637 * Do not notify other virtual radios of scan results since we do not
1638 * want them to start other associations at the same time.
1639 */
1640 return 1;
6fc6879b 1641 } else {
a3335ef5
TP
1642#ifdef CONFIG_MESH
1643 if (wpa_s->ifmsh) {
1644 wpa_msg(wpa_s, MSG_INFO,
1645 "Avoiding join because we already joined a mesh group");
1646 return 0;
1647 }
1648#endif /* CONFIG_MESH */
f049052b 1649 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
b55aaa5f
JM
1650 ssid = wpa_supplicant_pick_new_network(wpa_s);
1651 if (ssid) {
f049052b 1652 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
b55aaa5f 1653 wpa_supplicant_associate(wpa_s, NULL, ssid);
06b7f58d
JM
1654 if (new_scan)
1655 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
cc4952ad
JJ
1656 } else if (own_request) {
1657 /*
1658 * No SSID found. If SCAN results are as a result of
1659 * own scan request and not due to a scan request on
1660 * another shared interface, try another scan.
1661 */
67b9bd08 1662 int timeout_sec = wpa_s->scan_interval;
977b1174 1663 int timeout_usec = 0;
0817de90 1664#ifdef CONFIG_P2P
b0e669be
JM
1665 int res;
1666
1667 res = wpas_p2p_scan_no_go_seen(wpa_s);
1668 if (res == 2)
1669 return 2;
1670 if (res == 1)
aa9bb764
JM
1671 return 0;
1672
6fc48481 1673 if (wpa_s->p2p_in_provisioning ||
41d5ce9e
RR
1674 wpa_s->show_group_started ||
1675 wpa_s->p2p_in_invitation) {
0817de90
JM
1676 /*
1677 * Use shorter wait during P2P Provisioning
6fc48481
RR
1678 * state and during P2P join-a-group operation
1679 * to speed up group formation.
0817de90
JM
1680 */
1681 timeout_sec = 0;
1682 timeout_usec = 250000;
a4cba8f1
LC
1683 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1684 timeout_usec);
1685 return 0;
0817de90
JM
1686 }
1687#endif /* CONFIG_P2P */
4d5bda5f
JM
1688#ifdef CONFIG_INTERWORKING
1689 if (wpa_s->conf->auto_interworking &&
1690 wpa_s->conf->interworking &&
1691 wpa_s->conf->cred) {
1692 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1693 "start ANQP fetch since no matching "
1694 "networks found");
1695 wpa_s->network_select = 1;
1696 wpa_s->auto_network_select = 1;
1697 interworking_start_fetch_anqp(wpa_s);
0dd54313 1698 return 1;
4d5bda5f
JM
1699 }
1700#endif /* CONFIG_INTERWORKING */
662b40b1 1701#ifdef CONFIG_WPS
538d6f4b 1702 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
662b40b1
JM
1703 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1704 timeout_sec = 0;
1705 timeout_usec = 500000;
1706 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1707 timeout_usec);
1708 return 0;
1709 }
1710#endif /* CONFIG_WPS */
a4cba8f1
LC
1711 if (wpa_supplicant_req_sched_scan(wpa_s))
1712 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1713 timeout_usec);
4f39908b
DS
1714
1715 wpa_msg_ctrl(wpa_s, MSG_INFO,
1716 WPA_EVENT_NETWORK_NOT_FOUND);
977b1174 1717 }
6fc6879b 1718 }
e1504976 1719 return 0;
6fc6879b 1720}
6859f1cb
BG
1721
1722
b0e669be
JM
1723static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1724 union wpa_event_data *data)
6859f1cb 1725{
6859f1cb 1726 struct wpa_supplicant *ifs;
b0e669be 1727 int res;
6859f1cb 1728
b0e669be
JM
1729 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1);
1730 if (res == 2) {
1731 /*
1732 * Interface may have been removed, so must not dereference
1733 * wpa_s after this.
1734 */
1735 return 1;
1736 }
1737 if (res != 0) {
e1504976
BG
1738 /*
1739 * If no scan results could be fetched, then no need to
1740 * notify those interfaces that did not actually request
0dd54313
JM
1741 * this scan. Similarly, if scan results started a new operation on this
1742 * interface, do not notify other interfaces to avoid concurrent
1743 * operations during a connection attempt.
e1504976 1744 */
b0e669be 1745 return 0;
e1504976 1746 }
6859f1cb
BG
1747
1748 /*
f88f19b4 1749 * Check other interfaces to see if they share the same radio. If
6859f1cb
BG
1750 * so, they get updated with this same scan info.
1751 */
f88f19b4
JM
1752 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1753 radio_list) {
1754 if (ifs != wpa_s) {
6859f1cb
BG
1755 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1756 "sibling", ifs->ifname);
cfd31b50 1757 _wpa_supplicant_event_scan_results(ifs, data, 0);
6859f1cb
BG
1758 }
1759 }
b0e669be
JM
1760
1761 return 0;
6859f1cb
BG
1762}
1763
6fc6879b
JM
1764#endif /* CONFIG_NO_SCAN_PROCESSING */
1765
1766
cecdddc1
PS
1767int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1768{
1769#ifdef CONFIG_NO_SCAN_PROCESSING
1770 return -1;
1771#else /* CONFIG_NO_SCAN_PROCESSING */
a12d3454 1772 struct os_reltime now;
cecdddc1 1773
c1a14ef4 1774 if (wpa_s->last_scan_res_used == 0)
cecdddc1
PS
1775 return -1;
1776
a12d3454
JB
1777 os_get_reltime(&now);
1778 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
cecdddc1
PS
1779 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1780 return -1;
1781 }
1782
cc4952ad 1783 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
cecdddc1
PS
1784#endif /* CONFIG_NO_SCAN_PROCESSING */
1785}
1786
b6668734
JM
1787#ifdef CONFIG_WNM
1788
1789static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1790{
1791 struct wpa_supplicant *wpa_s = eloop_ctx;
1792
1793 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1794 return;
1795
2ec535fd
JM
1796 if (!wpa_s->no_keep_alive) {
1797 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1798 MAC2STR(wpa_s->bssid));
1799 /* TODO: could skip this if normal data traffic has been sent */
1800 /* TODO: Consider using some more appropriate data frame for
1801 * this */
1802 if (wpa_s->l2)
1803 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1804 (u8 *) "", 0);
1805 }
b6668734 1806
597c7a8d 1807#ifdef CONFIG_SME
b6668734
JM
1808 if (wpa_s->sme.bss_max_idle_period) {
1809 unsigned int msec;
1810 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1811 if (msec > 100)
1812 msec -= 100;
1813 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1814 wnm_bss_keep_alive, wpa_s, NULL);
1815 }
597c7a8d 1816#endif /* CONFIG_SME */
b6668734
JM
1817}
1818
1819
1820static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1821 const u8 *ies, size_t ies_len)
1822{
1823 struct ieee802_11_elems elems;
1824
1825 if (ies == NULL)
1826 return;
1827
1828 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1829 return;
1830
1831#ifdef CONFIG_SME
1832 if (elems.bss_max_idle_period) {
1833 unsigned int msec;
1834 wpa_s->sme.bss_max_idle_period =
1835 WPA_GET_LE16(elems.bss_max_idle_period);
1836 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1837 "TU)%s", wpa_s->sme.bss_max_idle_period,
1838 (elems.bss_max_idle_period[2] & 0x01) ?
1839 " (protected keep-live required)" : "");
1840 if (wpa_s->sme.bss_max_idle_period == 0)
1841 wpa_s->sme.bss_max_idle_period = 1;
1842 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1843 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1844 /* msec times 1000 */
1845 msec = wpa_s->sme.bss_max_idle_period * 1024;
1846 if (msec > 100)
1847 msec -= 100;
1848 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1849 wnm_bss_keep_alive, wpa_s,
1850 NULL);
1851 }
1852 }
1853#endif /* CONFIG_SME */
1854}
1855
1856#endif /* CONFIG_WNM */
1857
1858
1859void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1860{
1861#ifdef CONFIG_WNM
1862 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1863#endif /* CONFIG_WNM */
1864}
1865
1866
56f5af48
JM
1867#ifdef CONFIG_INTERWORKING
1868
1869static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1870 size_t len)
1871{
1872 int res;
1873
1874 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1875 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1876 if (res) {
1877 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1878 }
1879
1880 return res;
1881}
1882
1883
1884static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1885 const u8 *ies, size_t ies_len)
1886{
1887 struct ieee802_11_elems elems;
1888
1889 if (ies == NULL)
1890 return;
1891
1892 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1893 return;
1894
1895 if (elems.qos_map_set) {
1896 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1897 elems.qos_map_set_len);
1898 }
1899}
1900
1901#endif /* CONFIG_INTERWORKING */
1902
1903
ea708118
DL
1904#ifdef CONFIG_FST
1905static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
1906 const u8 *ie, size_t ie_len)
1907{
1908 struct mb_ies_info mb_ies;
1909
1910 if (!ie || !ie_len || !wpa_s->fst)
1911 return -ENOENT;
1912
1913 os_memset(&mb_ies, 0, sizeof(mb_ies));
1914
1915 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
1916 size_t len;
1917
1918 len = 2 + ie[1];
1919 if (len > ie_len) {
1920 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
1921 ie, ie_len);
1922 break;
1923 }
1924
1925 if (ie[0] == WLAN_EID_MULTI_BAND) {
1926 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
1927 (unsigned int) len);
1928 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
1929 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
1930 mb_ies.nof_ies++;
1931 }
1932
1933 ie_len -= len;
1934 ie += len;
1935 }
1936
1937 if (mb_ies.nof_ies > 0) {
1938 wpabuf_free(wpa_s->received_mb_ies);
1939 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
1940 return 0;
1941 }
1942
1943 return -ENOENT;
1944}
1945#endif /* CONFIG_FST */
1946
1947
579ce771
JM
1948static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1949 union wpa_event_data *data)
6fc6879b
JM
1950{
1951 int l, len, found = 0, wpa_found, rsn_found;
c2a04078 1952 const u8 *p;
b6714ca1 1953#ifdef CONFIG_IEEE80211R
6a1ce395 1954 u8 bssid[ETH_ALEN];
b6714ca1 1955#endif /* CONFIG_IEEE80211R */
6fc6879b 1956
f049052b 1957 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
6fc6879b
JM
1958 if (data->assoc_info.req_ies)
1959 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1960 data->assoc_info.req_ies_len);
52c9e6f3 1961 if (data->assoc_info.resp_ies) {
6fc6879b
JM
1962 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1963 data->assoc_info.resp_ies_len);
52c9e6f3
JM
1964#ifdef CONFIG_TDLS
1965 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1966 data->assoc_info.resp_ies_len);
1967#endif /* CONFIG_TDLS */
b6668734
JM
1968#ifdef CONFIG_WNM
1969 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1970 data->assoc_info.resp_ies_len);
1971#endif /* CONFIG_WNM */
56f5af48
JM
1972#ifdef CONFIG_INTERWORKING
1973 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1974 data->assoc_info.resp_ies_len);
1975#endif /* CONFIG_INTERWORKING */
52c9e6f3 1976 }
6fc6879b
JM
1977 if (data->assoc_info.beacon_ies)
1978 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1979 data->assoc_info.beacon_ies,
1980 data->assoc_info.beacon_ies_len);
4832ecd7 1981 if (data->assoc_info.freq)
f049052b
BG
1982 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1983 data->assoc_info.freq);
6fc6879b
JM
1984
1985 p = data->assoc_info.req_ies;
1986 l = data->assoc_info.req_ies_len;
1987
1988 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1989 while (p && l >= 2) {
1990 len = p[1] + 2;
1991 if (len > l) {
1992 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1993 p, l);
1994 break;
1995 }
1996 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1997 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
192964dd
DN
1998 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 &&
1999 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) ||
6fc6879b
JM
2000 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
2001 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
2002 break;
2003 found = 1;
2004 wpa_find_assoc_pmkid(wpa_s);
2005 break;
2006 }
2007 l -= len;
2008 p += len;
2009 }
2010 if (!found && data->assoc_info.req_ies)
2011 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
2012
c2a04078 2013#ifdef CONFIG_IEEE80211R
62c72d72
JM
2014#ifdef CONFIG_SME
2015 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
62c72d72
JM
2016 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2017 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2018 data->assoc_info.resp_ies,
2019 data->assoc_info.resp_ies_len,
2020 bssid) < 0) {
f049052b
BG
2021 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2022 "Reassociation Response failed");
579ce771
JM
2023 wpa_supplicant_deauthenticate(
2024 wpa_s, WLAN_REASON_INVALID_IE);
2025 return -1;
62c72d72
JM
2026 }
2027 }
62c72d72 2028
c2a04078
JM
2029 p = data->assoc_info.resp_ies;
2030 l = data->assoc_info.resp_ies_len;
2031
54f489be 2032#ifdef CONFIG_WPS_STRICT
5dac11e0 2033 if (p && wpa_s->current_ssid &&
54f489be
JM
2034 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
2035 struct wpabuf *wps;
2036 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
2037 if (wps == NULL) {
f049052b
BG
2038 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
2039 "include WPS IE in (Re)Association Response");
54f489be
JM
2040 return -1;
2041 }
2042
2043 if (wps_validate_assoc_resp(wps) < 0) {
2044 wpabuf_free(wps);
2045 wpa_supplicant_deauthenticate(
2046 wpa_s, WLAN_REASON_INVALID_IE);
2047 return -1;
2048 }
2049 wpabuf_free(wps);
2050 }
2051#endif /* CONFIG_WPS_STRICT */
2052
e7846b68 2053 /* Go through the IEs and make a copy of the MDIE, if present. */
c2a04078
JM
2054 while (p && l >= 2) {
2055 len = p[1] + 2;
2056 if (len > l) {
2057 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2058 p, l);
2059 break;
2060 }
e7846b68
JM
2061 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
2062 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
2063 wpa_s->sme.ft_used = 1;
2064 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
2065 MOBILITY_DOMAIN_ID_LEN);
2066 break;
2067 }
c2a04078
JM
2068 l -= len;
2069 p += len;
2070 }
e7846b68 2071#endif /* CONFIG_SME */
c2a04078 2072
6a1ce395
DG
2073 /* Process FT when SME is in the driver */
2074 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
2075 wpa_ft_is_completed(wpa_s->wpa)) {
2076 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2077 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2078 data->assoc_info.resp_ies,
2079 data->assoc_info.resp_ies_len,
2080 bssid) < 0) {
2081 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2082 "Reassociation Response failed");
2083 wpa_supplicant_deauthenticate(
2084 wpa_s, WLAN_REASON_INVALID_IE);
2085 return -1;
2086 }
2087 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
2088 }
2089
e7846b68
JM
2090 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
2091 data->assoc_info.resp_ies_len);
c2a04078
JM
2092#endif /* CONFIG_IEEE80211R */
2093
6fc6879b
JM
2094 /* WPA/RSN IE from Beacon/ProbeResp */
2095 p = data->assoc_info.beacon_ies;
2096 l = data->assoc_info.beacon_ies_len;
2097
2098 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
2099 */
2100 wpa_found = rsn_found = 0;
2101 while (p && l >= 2) {
2102 len = p[1] + 2;
2103 if (len > l) {
2104 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
2105 p, l);
2106 break;
2107 }
2108 if (!wpa_found &&
2109 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2110 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
2111 wpa_found = 1;
2112 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
2113 }
2114
2115 if (!rsn_found &&
2116 p[0] == WLAN_EID_RSN && p[1] >= 2) {
2117 rsn_found = 1;
2118 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
2119 }
2120
2121 l -= len;
2122 p += len;
2123 }
2124
2125 if (!wpa_found && data->assoc_info.beacon_ies)
2126 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
2127 if (!rsn_found && data->assoc_info.beacon_ies)
2128 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
2129 if (wpa_found || rsn_found)
2130 wpa_s->ap_ies_from_associnfo = 1;
4832ecd7 2131
117e812d
JM
2132 if (wpa_s->assoc_freq && data->assoc_info.freq &&
2133 wpa_s->assoc_freq != data->assoc_info.freq) {
2134 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
2135 "%u to %u MHz",
2136 wpa_s->assoc_freq, data->assoc_info.freq);
2137 wpa_supplicant_update_scan_results(wpa_s);
2138 }
2139
4832ecd7 2140 wpa_s->assoc_freq = data->assoc_info.freq;
579ce771
JM
2141
2142 return 0;
6fc6879b
JM
2143}
2144
2145
ad9ee4d4
JM
2146static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
2147{
2148 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
2149
2150 if (!wpa_s->current_bss || !wpa_s->current_ssid)
2151 return -1;
2152
2153 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
2154 return 0;
2155
2156 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
2157 WPA_IE_VENDOR_TYPE);
2158 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
2159
2160 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
2161 bss_wpa ? 2 + bss_wpa[1] : 0) ||
2162 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
2163 bss_rsn ? 2 + bss_rsn[1] : 0))
2164 return -1;
2165
2166 return 0;
2167}
2168
2169
ea708118
DL
2170static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
2171 union wpa_event_data *data)
2172{
2173#ifdef CONFIG_FST
2174 struct assoc_info *ai = data ? &data->assoc_info : NULL;
2175 struct wpa_bss *bss = wpa_s->current_bss;
2176 const u8 *ieprb, *iebcn;
2177
2178 wpabuf_free(wpa_s->received_mb_ies);
2179 wpa_s->received_mb_ies = NULL;
2180
2181 if (ai &&
2182 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
2183 wpa_printf(MSG_DEBUG,
2184 "FST: MB IEs updated from Association Response frame");
2185 return;
2186 }
2187
2188 if (ai &&
2189 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
2190 wpa_printf(MSG_DEBUG,
2191 "FST: MB IEs updated from association event Beacon IEs");
2192 return;
2193 }
2194
2195 if (!bss)
2196 return;
2197
2198 ieprb = (const u8 *) (bss + 1);
2199 iebcn = ieprb + bss->ie_len;
2200
2201 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
2202 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
2203 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
2204 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
2205#endif /* CONFIG_FST */
2206}
2207
2208
6fc6879b
JM
2209static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
2210 union wpa_event_data *data)
2211{
2212 u8 bssid[ETH_ALEN];
1d041bec 2213 int ft_completed;
ce7d0eb1 2214 int new_bss = 0;
6fc6879b 2215
1d041bec
JM
2216#ifdef CONFIG_AP
2217 if (wpa_s->ap_iface) {
a01acc50
JM
2218 if (!data)
2219 return;
1d041bec
JM
2220 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
2221 data->assoc_info.addr,
2222 data->assoc_info.req_ies,
39b08b5f
SP
2223 data->assoc_info.req_ies_len,
2224 data->assoc_info.reassoc);
1d041bec
JM
2225 return;
2226 }
2227#endif /* CONFIG_AP */
2228
9bd566a3
AS
2229 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2230
1d041bec 2231 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
579ce771
JM
2232 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
2233 return;
6fc6879b 2234
0a0c38f6
MH
2235 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
2236 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
07783eaa 2237 wpa_supplicant_deauthenticate(
0a0c38f6
MH
2238 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2239 return;
2240 }
2241
6fc6879b 2242 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
0a0c38f6 2243 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
f049052b 2244 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
6fc6879b 2245 MACSTR, MAC2STR(bssid));
ce7d0eb1 2246 new_bss = 1;
bbb921da 2247 random_add_randomness(bssid, ETH_ALEN);
6fc6879b
JM
2248 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
2249 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
e485286c 2250 wpas_notify_bssid_changed(wpa_s);
8bac466b 2251
6fc6879b
JM
2252 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
2253 wpa_clear_keys(wpa_s, bssid);
2254 }
2255 if (wpa_supplicant_select_config(wpa_s) < 0) {
07783eaa 2256 wpa_supplicant_deauthenticate(
6fc6879b
JM
2257 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2258 return;
2259 }
ce7d0eb1 2260 }
cd2f4ddf 2261
ce7d0eb1
SD
2262 if (wpa_s->conf->ap_scan == 1 &&
2263 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
2264 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
2265 wpa_msg(wpa_s, MSG_WARNING,
2266 "WPA/RSN IEs not updated");
6fc6879b
JM
2267 }
2268
ea708118
DL
2269 wpas_fst_update_mb_assoc(wpa_s, data);
2270
62fa124c
JM
2271#ifdef CONFIG_SME
2272 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
2273 wpa_s->sme.prev_bssid_set = 1;
3302b7c2 2274 wpa_s->sme.last_unprot_disconnect.sec = 0;
62fa124c
JM
2275#endif /* CONFIG_SME */
2276
6fc6879b
JM
2277 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
2278 if (wpa_s->current_ssid) {
2279 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
2280 * initialized before association, but for other modes,
2281 * initialize PC/SC here, if the current configuration needs
2282 * smartcard or SIM/USIM. */
2283 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
2284 }
2285 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
3f967fe0
JM
2286 if (wpa_s->l2)
2287 l2_packet_notify_auth_start(wpa_s->l2);
6fc6879b
JM
2288
2289 /*
2290 * Set portEnabled first to FALSE in order to get EAP state machine out
2291 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
2292 * state machine may transit to AUTHENTICATING state based on obsolete
2293 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
2294 * AUTHENTICATED without ever giving chance to EAP state machine to
2295 * reset the state.
2296 */
2297 if (!ft_completed) {
2298 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
2299 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
2300 }
56586197 2301 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
6fc6879b
JM
2302 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
2303 /* 802.1X::portControl = Auto */
2304 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
2305 wpa_s->eapol_received = 0;
2306 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
9c972abb
JM
2307 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
2308 (wpa_s->current_ssid &&
2309 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
fb958ea7
JM
2310 if (wpa_s->current_ssid &&
2311 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
6ea1f413
JM
2312 (wpa_s->drv_flags &
2313 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2314 /*
2315 * Set the key after having received joined-IBSS event
2316 * from the driver.
2317 */
2318 wpa_supplicant_set_wpa_none_key(wpa_s,
2319 wpa_s->current_ssid);
2320 }
6fc6879b
JM
2321 wpa_supplicant_cancel_auth_timeout(wpa_s);
2322 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2323 } else if (!ft_completed) {
2324 /* Timeout for receiving the first EAPOL packet */
2325 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
2326 }
2327 wpa_supplicant_cancel_scan(wpa_s);
2328
c2a04078 2329 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
56586197 2330 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
6fc6879b
JM
2331 /*
2332 * We are done; the driver will take care of RSN 4-way
2333 * handshake.
2334 */
2335 wpa_supplicant_cancel_auth_timeout(wpa_s);
2336 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2337 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2338 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
98ea9431
JM
2339 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2340 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
2341 /*
2342 * The driver will take care of RSN 4-way handshake, so we need
2343 * to allow EAPOL supplicant to complete its work without
2344 * waiting for WPA supplicant.
2345 */
2346 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
16a83d29
JM
2347 } else if (ft_completed) {
2348 /*
2349 * FT protocol completed - make sure EAPOL state machine ends
2350 * up in authenticated.
2351 */
2352 wpa_supplicant_cancel_auth_timeout(wpa_s);
2353 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2354 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2355 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
6fc6879b 2356 }
1ff73338 2357
3ab35a66
JM
2358 wpa_s->last_eapol_matches_bssid = 0;
2359
1ff73338 2360 if (wpa_s->pending_eapol_rx) {
c2be937c
JB
2361 struct os_reltime now, age;
2362 os_get_reltime(&now);
2363 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1ff73338
JM
2364 if (age.sec == 0 && age.usec < 100000 &&
2365 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2366 0) {
f049052b
BG
2367 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2368 "frame that was received just before "
2369 "association notification");
1ff73338
JM
2370 wpa_supplicant_rx_eapol(
2371 wpa_s, wpa_s->pending_eapol_rx_src,
2372 wpabuf_head(wpa_s->pending_eapol_rx),
2373 wpabuf_len(wpa_s->pending_eapol_rx));
2374 }
2375 wpabuf_free(wpa_s->pending_eapol_rx);
2376 wpa_s->pending_eapol_rx = NULL;
2377 }
60b94c98 2378
0194fedb
JB
2379 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2380 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
66562e9c
JM
2381 wpa_s->current_ssid &&
2382 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
0194fedb
JB
2383 /* Set static WEP keys again */
2384 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2385 }
50b05780
JM
2386
2387#ifdef CONFIG_IBSS_RSN
2388 if (wpa_s->current_ssid &&
2389 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2390 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
78177a00
JM
2391 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2392 wpa_s->ibss_rsn == NULL) {
2393 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2394 if (!wpa_s->ibss_rsn) {
2395 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2396 wpa_supplicant_deauthenticate(
2397 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2398 return;
2399 }
2400
2401 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2402 }
50b05780 2403#endif /* CONFIG_IBSS_RSN */
f9f0526b
JM
2404
2405 wpas_wps_notify_assoc(wpa_s, bssid);
a0413b17
MB
2406
2407 if (data) {
2408 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2409 data->assoc_info.resp_ies_len,
2410 &data->assoc_info.wmm_params);
8c42b369
EP
2411
2412 if (wpa_s->reassoc_same_bss)
2413 wmm_ac_restore_tspecs(wpa_s);
a0413b17 2414 }
6fc6879b
JM
2415}
2416
2417
d00821e9
JM
2418static int disconnect_reason_recoverable(u16 reason_code)
2419{
2420 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2421 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2422 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2423}
2424
2425
0544b242 2426static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
3d9975d5
JM
2427 u16 reason_code,
2428 int locally_generated)
6fc6879b
JM
2429{
2430 const u8 *bssid;
0aadd568
JM
2431
2432 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2433 /*
2434 * At least Host AP driver and a Prism3 card seemed to be
2435 * generating streams of disconnected events when configuring
2436 * IBSS for WPA-None. Ignore them for now.
2437 */
2438 return;
2439 }
2440
2441 bssid = wpa_s->bssid;
2442 if (is_zero_ether_addr(bssid))
2443 bssid = wpa_s->pending_bssid;
2444
2445 if (!is_zero_ether_addr(bssid) ||
2446 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2447 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2448 " reason=%d%s",
2449 MAC2STR(bssid), reason_code,
2450 locally_generated ? " locally_generated=1" : "");
2451 }
2452}
2453
2454
c9a82218
JM
2455static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2456 int locally_generated)
2457{
2458 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2459 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2460 return 0; /* Not in 4-way handshake with PSK */
2461
2462 /*
2463 * It looks like connection was lost while trying to go through PSK
2464 * 4-way handshake. Filter out known disconnection cases that are caused
2465 * by something else than PSK mismatch to avoid confusing reports.
2466 */
2467
2468 if (locally_generated) {
2469 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2470 return 0;
2471 }
2472
2473 return 1;
2474}
2475
2476
0aadd568
JM
2477static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2478 u16 reason_code,
2479 int locally_generated)
2480{
2481 const u8 *bssid;
6d6f4bb8
JM
2482 int authenticating;
2483 u8 prev_pending_bssid[ETH_ALEN];
d00821e9
JM
2484 struct wpa_bss *fast_reconnect = NULL;
2485 struct wpa_ssid *fast_reconnect_ssid = NULL;
bcdf2096 2486 struct wpa_ssid *last_ssid;
6d6f4bb8
JM
2487
2488 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2489 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
6fc6879b
JM
2490
2491 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2492 /*
2493 * At least Host AP driver and a Prism3 card seemed to be
2494 * generating streams of disconnected events when configuring
2495 * IBSS for WPA-None. Ignore them for now.
2496 */
f049052b
BG
2497 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2498 "IBSS/WPA-None mode");
6fc6879b
JM
2499 return;
2500 }
2501
c9a82218 2502 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
6fc6879b
JM
2503 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2504 "pre-shared key may be incorrect");
5bf9a6c8
JM
2505 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2506 return; /* P2P group removed */
b19c098e 2507 wpas_auth_failed(wpa_s, "WRONG_KEY");
6fc6879b 2508 }
3636b891
JM
2509 if (!wpa_s->disconnected &&
2510 (!wpa_s->auto_reconnect_disabled ||
6e252b0d 2511 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
5e238cc6
SD
2512 wpas_wps_searching(wpa_s) ||
2513 wpas_wps_reenable_networks_pending(wpa_s))) {
d00821e9 2514 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
6e252b0d 2515 "reconnect (wps=%d/%d wpa_state=%d)",
f7da5a9e 2516 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
6e252b0d 2517 wpas_wps_searching(wpa_s),
f7da5a9e 2518 wpa_s->wpa_state);
d00821e9
JM
2519 if (wpa_s->wpa_state == WPA_COMPLETED &&
2520 wpa_s->current_ssid &&
2521 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
3d9975d5 2522 !locally_generated &&
d00821e9
JM
2523 disconnect_reason_recoverable(reason_code)) {
2524 /*
2525 * It looks like the AP has dropped association with
2526 * us, but could allow us to get back in. Try to
2527 * reconnect to the same BSS without full scan to save
2528 * time for some common cases.
2529 */
2530 fast_reconnect = wpa_s->current_bss;
2531 fast_reconnect_ssid = wpa_s->current_ssid;
2532 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
0d0a8ca1 2533 wpa_supplicant_req_scan(wpa_s, 0, 100000);
f7da5a9e
JM
2534 else
2535 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2536 "immediate scan");
0d0a8ca1 2537 } else {
d00821e9 2538 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
f049052b 2539 "try to re-connect");
0d0a8ca1
AC
2540 wpa_s->reassociate = 0;
2541 wpa_s->disconnected = 1;
0d0f7ecb
MS
2542 if (!wpa_s->pno)
2543 wpa_supplicant_cancel_sched_scan(wpa_s);
0d0a8ca1 2544 }
6fc6879b 2545 bssid = wpa_s->bssid;
a8e16edc 2546 if (is_zero_ether_addr(bssid))
6fc6879b 2547 bssid = wpa_s->pending_bssid;
56d24b4e
JM
2548 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2549 wpas_connection_failed(wpa_s, bssid);
6fc6879b 2550 wpa_sm_notify_disassoc(wpa_s->wpa);
0bb1e425
GM
2551 if (locally_generated)
2552 wpa_s->disconnect_reason = -reason_code;
2553 else
2554 wpa_s->disconnect_reason = reason_code;
2555 wpas_notify_disconnect_reason(wpa_s);
6fc6879b 2556 if (wpa_supplicant_dynamic_keys(wpa_s)) {
f049052b 2557 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
6fc6879b
JM
2558 wpa_clear_keys(wpa_s, wpa_s->bssid);
2559 }
bcdf2096 2560 last_ssid = wpa_s->current_ssid;
6fc6879b 2561 wpa_supplicant_mark_disassoc(wpa_s);
e29853bb 2562
bcdf2096 2563 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
e29853bb 2564 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
bcdf2096
JM
2565 wpa_s->current_ssid = last_ssid;
2566 }
d00821e9 2567
eef7235d
JM
2568 if (fast_reconnect &&
2569 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2570 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2571 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2572 fast_reconnect->ssid_len) &&
dd599908
AS
2573 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
2574 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) {
5928411e 2575#ifndef CONFIG_NO_SCAN_PROCESSING
d00821e9
JM
2576 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2577 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2578 fast_reconnect_ssid) < 0) {
2579 /* Recover through full scan */
2580 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2581 }
5928411e 2582#endif /* CONFIG_NO_SCAN_PROCESSING */
eef7235d
JM
2583 } else if (fast_reconnect) {
2584 /*
2585 * Could not reconnect to the same BSS due to network being
2586 * disabled. Use a new scan to match the alternative behavior
2587 * above, i.e., to continue automatic reconnection attempt in a
2588 * way that enforces disabled network rules.
2589 */
2590 wpa_supplicant_req_scan(wpa_s, 0, 100000);
d00821e9 2591 }
6fc6879b
JM
2592}
2593
2594
46690a3b 2595#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
01a17491 2596void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
46690a3b
JM
2597{
2598 struct wpa_supplicant *wpa_s = eloop_ctx;
2599
2600 if (!wpa_s->pending_mic_error_report)
2601 return;
2602
f049052b 2603 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
46690a3b
JM
2604 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2605 wpa_s->pending_mic_error_report = 0;
2606}
2607#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2608
2609
6fc6879b
JM
2610static void
2611wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2612 union wpa_event_data *data)
2613{
2614 int pairwise;
6473e5c8 2615 struct os_reltime t;
6fc6879b
JM
2616
2617 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2618 pairwise = (data && data->michael_mic_failure.unicast);
6473e5c8
JB
2619 os_get_reltime(&t);
2620 if ((wpa_s->last_michael_mic_error.sec &&
2621 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
46690a3b
JM
2622 wpa_s->pending_mic_error_report) {
2623 if (wpa_s->pending_mic_error_report) {
2624 /*
2625 * Send the pending MIC error report immediately since
2626 * we are going to start countermeasures and AP better
2627 * do the same.
2628 */
2629 wpa_sm_key_request(wpa_s->wpa, 1,
2630 wpa_s->pending_mic_error_pairwise);
2631 }
2632
2633 /* Send the new MIC error report immediately since we are going
2634 * to start countermeasures and AP better do the same.
2635 */
2636 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2637
6fc6879b
JM
2638 /* initialize countermeasures */
2639 wpa_s->countermeasures = 1;
8945cc45
BM
2640
2641 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2642
6fc6879b
JM
2643 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2644
2645 /*
2646 * Need to wait for completion of request frame. We do not get
2647 * any callback for the message completion, so just wait a
2648 * short while and hope for the best. */
2649 os_sleep(0, 10000);
2650
2651 wpa_drv_set_countermeasures(wpa_s, 1);
2652 wpa_supplicant_deauthenticate(wpa_s,
2653 WLAN_REASON_MICHAEL_MIC_FAILURE);
2654 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2655 wpa_s, NULL);
2656 eloop_register_timeout(60, 0,
2657 wpa_supplicant_stop_countermeasures,
2658 wpa_s, NULL);
2659 /* TODO: mark the AP rejected for 60 second. STA is
2660 * allowed to associate with another AP.. */
46690a3b
JM
2661 } else {
2662#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2663 if (wpa_s->mic_errors_seen) {
2664 /*
2665 * Reduce the effectiveness of Michael MIC error
2666 * reports as a means for attacking against TKIP if
2667 * more than one MIC failure is noticed with the same
2668 * PTK. We delay the transmission of the reports by a
2669 * random time between 0 and 60 seconds in order to
2670 * force the attacker wait 60 seconds before getting
2671 * the information on whether a frame resulted in a MIC
2672 * failure.
2673 */
2674 u8 rval[4];
2675 int sec;
2676
2677 if (os_get_random(rval, sizeof(rval)) < 0)
2678 sec = os_random() % 60;
2679 else
2680 sec = WPA_GET_BE32(rval) % 60;
f049052b
BG
2681 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2682 "report %d seconds", sec);
46690a3b
JM
2683 wpa_s->pending_mic_error_report = 1;
2684 wpa_s->pending_mic_error_pairwise = pairwise;
2685 eloop_cancel_timeout(
2686 wpa_supplicant_delayed_mic_error_report,
2687 wpa_s, NULL);
2688 eloop_register_timeout(
2689 sec, os_random() % 1000000,
2690 wpa_supplicant_delayed_mic_error_report,
2691 wpa_s, NULL);
2692 } else {
2693 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2694 }
2695#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2696 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2697#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
6fc6879b 2698 }
6473e5c8 2699 wpa_s->last_michael_mic_error = t;
46690a3b 2700 wpa_s->mic_errors_seen++;
6fc6879b
JM
2701}
2702
2703
a83d9c96
SL
2704#ifdef CONFIG_TERMINATE_ONLASTIF
2705static int any_interfaces(struct wpa_supplicant *head)
2706{
2707 struct wpa_supplicant *wpa_s;
2708
2709 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2710 if (!wpa_s->interface_removed)
2711 return 1;
2712 return 0;
2713}
2714#endif /* CONFIG_TERMINATE_ONLASTIF */
2715
2716
6fc6879b
JM
2717static void
2718wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2719 union wpa_event_data *data)
2720{
2721 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2722 return;
2723
2724 switch (data->interface_status.ievent) {
2725 case EVENT_INTERFACE_ADDED:
2726 if (!wpa_s->interface_removed)
2727 break;
2728 wpa_s->interface_removed = 0;
f049052b 2729 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
6fc6879b 2730 if (wpa_supplicant_driver_init(wpa_s) < 0) {
f049052b
BG
2731 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2732 "driver after interface was added");
6fc6879b 2733 }
f43c1ae7
IP
2734
2735#ifdef CONFIG_P2P
2736 if (!wpa_s->global->p2p &&
2737 !wpa_s->global->p2p_disabled &&
2738 !wpa_s->conf->p2p_disabled &&
2739 (wpa_s->drv_flags &
2740 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
2741 wpas_p2p_add_p2pdev_interface(
2742 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
2743 wpa_printf(MSG_INFO,
2744 "P2P: Failed to enable P2P Device interface");
2745 /* Try to continue without. P2P will be disabled. */
2746 }
2747#endif /* CONFIG_P2P */
2748
6fc6879b
JM
2749 break;
2750 case EVENT_INTERFACE_REMOVED:
f049052b 2751 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
6fc6879b
JM
2752 wpa_s->interface_removed = 1;
2753 wpa_supplicant_mark_disassoc(wpa_s);
cb6710a4 2754 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
6fc6879b
JM
2755 l2_packet_deinit(wpa_s->l2);
2756 wpa_s->l2 = NULL;
f43c1ae7
IP
2757
2758#ifdef CONFIG_P2P
2759 if (wpa_s->global->p2p &&
2760 wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
2761 (wpa_s->drv_flags &
2762 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
2763 wpa_dbg(wpa_s, MSG_DEBUG,
2764 "Removing P2P Device interface");
2765 wpa_supplicant_remove_iface(
2766 wpa_s->global, wpa_s->global->p2p_init_wpa_s,
2767 0);
2768 wpa_s->global->p2p_init_wpa_s = NULL;
2769 }
2770#endif /* CONFIG_P2P */
2771
2e997eec
RM
2772#ifdef CONFIG_MATCH_IFACE
2773 if (wpa_s->matched) {
2774 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0);
2775 break;
2776 }
2777#endif /* CONFIG_MATCH_IFACE */
2778
a83d9c96
SL
2779#ifdef CONFIG_TERMINATE_ONLASTIF
2780 /* check if last interface */
2781 if (!any_interfaces(wpa_s->global->ifaces))
2782 eloop_terminate();
2783#endif /* CONFIG_TERMINATE_ONLASTIF */
6fc6879b
JM
2784 break;
2785 }
2786}
2787
2788
2789#ifdef CONFIG_PEERKEY
2790static void
2791wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2792 union wpa_event_data *data)
2793{
2794 if (data == NULL)
2795 return;
2796 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2797}
2798#endif /* CONFIG_PEERKEY */
2799
2800
281ff0aa
GP
2801#ifdef CONFIG_TDLS
2802static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2803 union wpa_event_data *data)
2804{
2805 if (data == NULL)
2806 return;
2807 switch (data->tdls.oper) {
2808 case TDLS_REQUEST_SETUP:
3887878e
SD
2809 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2810 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2811 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2812 else
2813 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
281ff0aa
GP
2814 break;
2815 case TDLS_REQUEST_TEARDOWN:
f130b105
SD
2816 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2817 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2818 data->tdls.reason_code);
2819 else
2820 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2821 data->tdls.peer);
281ff0aa 2822 break;
c10ca2a6
SD
2823 case TDLS_REQUEST_DISCOVER:
2824 wpa_tdls_send_discovery_request(wpa_s->wpa,
2825 data->tdls.peer);
2826 break;
281ff0aa
GP
2827 }
2828}
2829#endif /* CONFIG_TDLS */
2830
2831
ad3872a3 2832#ifdef CONFIG_WNM
75cad1a0
XC
2833static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2834 union wpa_event_data *data)
2835{
2836 if (data == NULL)
2837 return;
2838 switch (data->wnm.oper) {
2839 case WNM_OPER_SLEEP:
2840 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2841 "(action=%d, intval=%d)",
2842 data->wnm.sleep_action, data->wnm.sleep_intval);
2843 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
cd0ef657 2844 data->wnm.sleep_intval, NULL);
75cad1a0
XC
2845 break;
2846 }
2847}
ad3872a3 2848#endif /* CONFIG_WNM */
75cad1a0
XC
2849
2850
6fc6879b
JM
2851#ifdef CONFIG_IEEE80211R
2852static void
2853wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2854 union wpa_event_data *data)
2855{
2856 if (data == NULL)
2857 return;
2858
2859 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2860 data->ft_ies.ies_len,
2861 data->ft_ies.ft_action,
babfbf15
JM
2862 data->ft_ies.target_ap,
2863 data->ft_ies.ric_ies,
2864 data->ft_ies.ric_ies_len) < 0) {
6fc6879b
JM
2865 /* TODO: prevent MLME/driver from trying to associate? */
2866 }
2867}
2868#endif /* CONFIG_IEEE80211R */
2869
2870
11ef8d35
JM
2871#ifdef CONFIG_IBSS_RSN
2872static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2873 union wpa_event_data *data)
2874{
df4bc509 2875 struct wpa_ssid *ssid;
df418245
XC
2876 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2877 return;
11ef8d35
JM
2878 if (data == NULL)
2879 return;
df4bc509
JM
2880 ssid = wpa_s->current_ssid;
2881 if (ssid == NULL)
2882 return;
2883 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2884 return;
2885
11ef8d35
JM
2886 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2887}
13adc57b
AQ
2888
2889
2890static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2891 union wpa_event_data *data)
2892{
2893 struct wpa_ssid *ssid = wpa_s->current_ssid;
2894
2895 if (ssid == NULL)
2896 return;
2897
2898 /* check if the ssid is correctly configured as IBSS/RSN */
2899 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2900 return;
2901
2902 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2903 data->rx_mgmt.frame_len);
2904}
11ef8d35
JM
2905#endif /* CONFIG_IBSS_RSN */
2906
2907
036f7c4a
JM
2908#ifdef CONFIG_IEEE80211R
2909static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2910 size_t len)
2911{
2912 const u8 *sta_addr, *target_ap_addr;
2913 u16 status;
2914
2915 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2916 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2917 return; /* only SME case supported for now */
2918 if (len < 1 + 2 * ETH_ALEN + 2)
2919 return;
2920 if (data[0] != 2)
2921 return; /* Only FT Action Response is supported for now */
2922 sta_addr = data + 1;
2923 target_ap_addr = data + 1 + ETH_ALEN;
2924 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
f049052b
BG
2925 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2926 MACSTR " TargetAP " MACSTR " status %u",
2927 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
036f7c4a
JM
2928
2929 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
f049052b
BG
2930 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2931 " in FT Action Response", MAC2STR(sta_addr));
036f7c4a
JM
2932 return;
2933 }
2934
2935 if (status) {
f049052b
BG
2936 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2937 "failure (status code %d)", status);
036f7c4a
JM
2938 /* TODO: report error to FT code(?) */
2939 return;
2940 }
2941
2942 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2943 len - (1 + 2 * ETH_ALEN + 2), 1,
2944 target_ap_addr, NULL, 0) < 0)
2945 return;
2946
fe191985
JM
2947#ifdef CONFIG_SME
2948 {
2949 struct wpa_bss *bss;
2950 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2951 if (bss)
2952 wpa_s->sme.freq = bss->freq;
62c72d72 2953 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
fe191985
JM
2954 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2955 WLAN_AUTH_FT);
2956 }
2957#endif /* CONFIG_SME */
036f7c4a
JM
2958}
2959#endif /* CONFIG_IEEE80211R */
2960
2961
7d878ca7
JM
2962static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2963 struct unprot_deauth *e)
2964{
2965#ifdef CONFIG_IEEE80211W
2966 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2967 "dropped: " MACSTR " -> " MACSTR
2968 " (reason code %u)",
2969 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2970 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2971#endif /* CONFIG_IEEE80211W */
2972}
2973
2974
2975static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2976 struct unprot_disassoc *e)
2977{
2978#ifdef CONFIG_IEEE80211W
2979 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2980 "dropped: " MACSTR " -> " MACSTR
2981 " (reason code %u)",
2982 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2983 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2984#endif /* CONFIG_IEEE80211W */
2985}
2986
2987
d7df0fa7
JM
2988static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
2989 u16 reason_code, int locally_generated,
2990 const u8 *ie, size_t ie_len, int deauth)
2991{
2992#ifdef CONFIG_AP
2993 if (wpa_s->ap_iface && addr) {
2994 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
2995 return;
2996 }
2997
2998 if (wpa_s->ap_iface) {
2999 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
3000 return;
3001 }
3002#endif /* CONFIG_AP */
3003
c2805909
JM
3004 if (!locally_generated)
3005 wpa_s->own_disconnect_req = 0;
3006
d7df0fa7
JM
3007 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
3008
c60ba9f7
JM
3009 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
3010 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
3011 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
3012 eapol_sm_failed(wpa_s->eapol))) &&
3013 !wpa_s->eap_expected_failure))
b19c098e 3014 wpas_auth_failed(wpa_s, "AUTH_FAILED");
d7df0fa7
JM
3015
3016#ifdef CONFIG_P2P
43ee4704 3017 if (deauth && reason_code > 0) {
d7df0fa7
JM
3018 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
3019 locally_generated) > 0) {
3020 /*
3021 * The interface was removed, so cannot continue
3022 * processing any additional operations after this.
3023 */
3024 return;
3025 }
3026 }
3027#endif /* CONFIG_P2P */
3028
3029 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
3030 locally_generated);
3031}
3032
3033
3034static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
3035 struct disassoc_info *info)
3036{
3037 u16 reason_code = 0;
3038 int locally_generated = 0;
3039 const u8 *addr = NULL;
3040 const u8 *ie = NULL;
3041 size_t ie_len = 0;
3042
3043 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
3044
3045 if (info) {
3046 addr = info->addr;
3047 ie = info->ie;
3048 ie_len = info->ie_len;
3049 reason_code = info->reason_code;
3050 locally_generated = info->locally_generated;
3051 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
3052 locally_generated ? " (locally generated)" : "");
3053 if (addr)
3054 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3055 MAC2STR(addr));
3056 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
3057 ie, ie_len);
3058 }
3059
3060#ifdef CONFIG_AP
3061 if (wpa_s->ap_iface && info && info->addr) {
3062 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
3063 return;
3064 }
3065
3066 if (wpa_s->ap_iface) {
3067 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
3068 return;
3069 }
3070#endif /* CONFIG_AP */
3071
3072#ifdef CONFIG_P2P
3073 if (info) {
3074 wpas_p2p_disassoc_notif(
3075 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
3076 locally_generated);
3077 }
3078#endif /* CONFIG_P2P */
3079
3080 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3081 sme_event_disassoc(wpa_s, info);
3082
3083 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
3084 ie, ie_len, 0);
3085}
3086
3087
3088static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
3089 struct deauth_info *info)
3090{
3091 u16 reason_code = 0;
3092 int locally_generated = 0;
3093 const u8 *addr = NULL;
3094 const u8 *ie = NULL;
3095 size_t ie_len = 0;
3096
3097 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
3098
3099 if (info) {
3100 addr = info->addr;
3101 ie = info->ie;
3102 ie_len = info->ie_len;
3103 reason_code = info->reason_code;
3104 locally_generated = info->locally_generated;
3105 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
3106 reason_code,
3107 locally_generated ? " (locally generated)" : "");
3108 if (addr) {
3109 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3110 MAC2STR(addr));
3111 }
3112 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
3113 ie, ie_len);
3114 }
3115
3116 wpa_reset_ft_completed(wpa_s->wpa);
3117
3118 wpas_event_disconnect(wpa_s, addr, reason_code,
3119 locally_generated, ie, ie_len, 1);
3120}
3121
3122
142817b2
JM
3123static const char * reg_init_str(enum reg_change_initiator init)
3124{
3125 switch (init) {
3126 case REGDOM_SET_BY_CORE:
3127 return "CORE";
3128 case REGDOM_SET_BY_USER:
3129 return "USER";
3130 case REGDOM_SET_BY_DRIVER:
3131 return "DRIVER";
3132 case REGDOM_SET_BY_COUNTRY_IE:
3133 return "COUNTRY_IE";
3134 case REGDOM_BEACON_HINT:
3135 return "BEACON_HINT";
3136 }
3137 return "?";
3138}
3139
3140
3141static const char * reg_type_str(enum reg_type type)
3142{
3143 switch (type) {
3144 case REGDOM_TYPE_UNKNOWN:
3145 return "UNKNOWN";
3146 case REGDOM_TYPE_COUNTRY:
3147 return "COUNTRY";
3148 case REGDOM_TYPE_WORLD:
3149 return "WORLD";
3150 case REGDOM_TYPE_CUSTOM_WORLD:
3151 return "CUSTOM_WORLD";
3152 case REGDOM_TYPE_INTERSECTION:
3153 return "INTERSECTION";
3154 }
3155 return "?";
3156}
3157
3158
3159static void wpa_supplicant_update_channel_list(
3160 struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
731ca636 3161{
731ca636
VKE
3162 struct wpa_supplicant *ifs;
3163
142817b2 3164 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
42619d68 3165 reg_init_str(info->initiator), reg_type_str(info->type),
142817b2
JM
3166 info->alpha2[0] ? " alpha2=" : "",
3167 info->alpha2[0] ? info->alpha2 : "");
3168
731ca636
VKE
3169 if (wpa_s->drv_priv == NULL)
3170 return; /* Ignore event during drv initialization */
3171
c67e7e2a
JM
3172 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
3173 radio_list) {
0f4bccdb
AN
3174 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
3175 ifs->ifname);
3176 free_hw_features(ifs);
3177 ifs->hw.modes = wpa_drv_get_hw_feature_data(
3178 ifs, &ifs->hw.num_modes, &ifs->hw.flags);
731ca636 3179 }
6ceea4c3
VG
3180
3181 /* Restart sched_scan with updated channel list */
3182 if (wpa_s->sched_scanning) {
3183 wpa_dbg(wpa_s, MSG_DEBUG,
3184 "Channel list changed restart sched scan.");
3185 wpa_supplicant_cancel_sched_scan(wpa_s);
3186 wpa_supplicant_req_scan(wpa_s, 0, 0);
3187 }
0f4bccdb 3188
3a8f008a 3189 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
731ca636
VKE
3190}
3191
3192
dbfb8e82 3193static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
70d1e728
AO
3194 const u8 *frame, size_t len, int freq,
3195 int rssi)
dbfb8e82 3196{
70d95373 3197 const struct ieee80211_mgmt *mgmt;
dbfb8e82
JM
3198 const u8 *payload;
3199 size_t plen;
3200 u8 category;
3201
3202 if (len < IEEE80211_HDRLEN + 2)
3203 return;
3204
70d95373
JM
3205 mgmt = (const struct ieee80211_mgmt *) frame;
3206 payload = frame + IEEE80211_HDRLEN;
dbfb8e82 3207 category = *payload++;
70d95373 3208 plen = len - IEEE80211_HDRLEN - 1;
dbfb8e82
JM
3209
3210 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
3211 " Category=%u DataLen=%d freq=%d MHz",
3212 MAC2STR(mgmt->sa), category, (int) plen, freq);
3213
d1f88001
MB
3214 if (category == WLAN_ACTION_WMM) {
3215 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
3216 return;
3217 }
3218
dbfb8e82
JM
3219#ifdef CONFIG_IEEE80211R
3220 if (category == WLAN_ACTION_FT) {
3221 ft_rx_action(wpa_s, payload, plen);
3222 return;
3223 }
3224#endif /* CONFIG_IEEE80211R */
3225
3226#ifdef CONFIG_IEEE80211W
3227#ifdef CONFIG_SME
3228 if (category == WLAN_ACTION_SA_QUERY) {
3229 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
3230 return;
3231 }
3232#endif /* CONFIG_SME */
3233#endif /* CONFIG_IEEE80211W */
3234
3235#ifdef CONFIG_WNM
3236 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
3237 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
3238 return;
3239 }
3240#endif /* CONFIG_WNM */
3241
3242#ifdef CONFIG_GAS
c5a64e2d
JM
3243 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
3244 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
dbfb8e82 3245 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
c5a64e2d 3246 mgmt->u.action.category,
dbfb8e82
JM
3247 payload, plen, freq) == 0)
3248 return;
3249#endif /* CONFIG_GAS */
3250
3251#ifdef CONFIG_TDLS
3252 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
3253 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
3254 wpa_dbg(wpa_s, MSG_DEBUG,
3255 "TDLS: Received Discovery Response from " MACSTR,
3256 MAC2STR(mgmt->sa));
3257 return;
3258 }
3259#endif /* CONFIG_TDLS */
3260
3261#ifdef CONFIG_INTERWORKING
3262 if (category == WLAN_ACTION_QOS && plen >= 1 &&
3263 payload[0] == QOS_QOS_MAP_CONFIG) {
3264 const u8 *pos = payload + 1;
3265 size_t qlen = plen - 1;
3266 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
3267 MACSTR, MAC2STR(mgmt->sa));
3268 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
3269 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
3270 pos[1] <= qlen - 2 && pos[1] >= 16)
3271 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
3272 return;
3273 }
3274#endif /* CONFIG_INTERWORKING */
3275
d89c0701
AK
3276 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3277 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
3278 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
3279 return;
3280 }
3281
70d1e728
AO
3282 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3283 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
3284 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
3285 payload + 1, plen - 1,
3286 rssi);
3287 return;
3288 }
3289
9fbfd1b0
AN
3290#ifdef CONFIG_FST
3291 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
3292 fst_rx_action(wpa_s->fst, mgmt, len);
3293 return;
3294 }
3295#endif /* CONFIG_FST */
3296
dbfb8e82
JM
3297 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
3298 category, payload, plen, freq);
5f92659d
BC
3299 if (wpa_s->ifmsh)
3300 mesh_mpm_action_rx(wpa_s, mgmt, len);
dbfb8e82
JM
3301}
3302
3303
253f2e37
AH
3304static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
3305 union wpa_event_data *event)
3306{
253f2e37
AH
3307 struct wpa_freq_range_list *list;
3308 char *str = NULL;
3309
3310 list = &event->freq_range;
3311
3312 if (list->num)
3313 str = freq_range_list_str(list);
3314 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
3315 str ? str : "");
3316
3317#ifdef CONFIG_P2P
3318 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
3319 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
3320 __func__);
3321 } else {
3322 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
253f2e37 3323
a7160f7e
IP
3324 /*
3325 * The update channel flow will also take care of moving a GO
3326 * from the unsafe frequency if needed.
3327 */
3a8f008a
IP
3328 wpas_p2p_update_channel_list(wpa_s,
3329 WPAS_P2P_CHANNEL_UPDATE_AVOID);
253f2e37
AH
3330 }
3331#endif /* CONFIG_P2P */
3332
3333 os_free(str);
3334}
3335
3336
b41f2684
CL
3337static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
3338 union wpa_event_data *data)
3339{
3340 wpa_dbg(wpa_s, MSG_DEBUG,
3341 "Connection authorized by device, previous state %d",
3342 wpa_s->wpa_state);
3343 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
3344 wpa_supplicant_cancel_auth_timeout(wpa_s);
3345 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3346 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3347 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
3348 }
3349 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
3350 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
98cd3d1c
JM
3351 data->assoc_info.ptk_kck_len,
3352 data->assoc_info.ptk_kek,
3353 data->assoc_info.ptk_kek_len);
b41f2684
CL
3354}
3355
3356
9646a8ab 3357void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
6fc6879b
JM
3358 union wpa_event_data *data)
3359{
3360 struct wpa_supplicant *wpa_s = ctx;
02e122a9 3361 int resched;
6fc6879b 3362
8401a6b0
JM
3363 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
3364 event != EVENT_INTERFACE_ENABLED &&
9b6f44cb 3365 event != EVENT_INTERFACE_STATUS &&
1446afc8 3366 event != EVENT_SCAN_RESULTS &&
9b6f44cb 3367 event != EVENT_SCHED_SCAN_STOPPED) {
6c3771d7
BG
3368 wpa_dbg(wpa_s, MSG_DEBUG,
3369 "Ignore event %s (%d) while interface is disabled",
3370 event_to_string(event), event);
8401a6b0
JM
3371 return;
3372 }
3373
74781dfc
JM
3374#ifndef CONFIG_NO_STDOUT_DEBUG
3375{
3376 int level = MSG_DEBUG;
3377
eab6f5e0 3378 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
74781dfc
JM
3379 const struct ieee80211_hdr *hdr;
3380 u16 fc;
3381 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
3382 fc = le_to_host16(hdr->frame_control);
3383 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3384 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
3385 level = MSG_EXCESSIVE;
3386 }
3387
3388 wpa_dbg(wpa_s, level, "Event %s (%d) received",
6c3771d7 3389 event_to_string(event), event);
74781dfc
JM
3390}
3391#endif /* CONFIG_NO_STDOUT_DEBUG */
9b7124b2 3392
6fc6879b 3393 switch (event) {
c2a04078 3394 case EVENT_AUTH:
ea708118 3395#ifdef CONFIG_FST
58059e6c
JM
3396 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
3397 data->auth.ies_len))
3398 wpa_printf(MSG_DEBUG,
3399 "FST: MB IEs updated from auth IE");
ea708118 3400#endif /* CONFIG_FST */
c2a04078
JM
3401 sme_event_auth(wpa_s, data);
3402 break;
6fc6879b
JM
3403 case EVENT_ASSOC:
3404 wpa_supplicant_event_assoc(wpa_s, data);
b41f2684
CL
3405 if (data && data->assoc_info.authorized)
3406 wpa_supplicant_event_assoc_auth(wpa_s, data);
f32227ed
RJ
3407 if (data) {
3408 wpa_msg(wpa_s, MSG_INFO,
3409 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
3410 data->assoc_info.subnet_status);
3411 }
6fc6879b
JM
3412 break;
3413 case EVENT_DISASSOC:
d7df0fa7
JM
3414 wpas_event_disassoc(wpa_s,
3415 data ? &data->disassoc_info : NULL);
3416 break;
a84ed99e 3417 case EVENT_DEAUTH:
d7df0fa7
JM
3418 wpas_event_deauth(wpa_s,
3419 data ? &data->deauth_info : NULL);
6fc6879b
JM
3420 break;
3421 case EVENT_MICHAEL_MIC_FAILURE:
3422 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3423 break;
3424#ifndef CONFIG_NO_SCAN_PROCESSING
a5f40eff 3425 case EVENT_SCAN_STARTED:
adcd7c4b
KV
3426 if (wpa_s->own_scan_requested ||
3427 (data && !data->scan_info.external_scan)) {
dc3906cb
JM
3428 struct os_reltime diff;
3429
adcd7c4b 3430 os_get_reltime(&wpa_s->scan_start_time);
dc3906cb
JM
3431 os_reltime_sub(&wpa_s->scan_start_time,
3432 &wpa_s->scan_trigger_time, &diff);
3433 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3434 diff.sec, diff.usec);
a5f40eff
JM
3435 wpa_s->own_scan_requested = 0;
3436 wpa_s->own_scan_running = 1;
d81c73be
JM
3437 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3438 wpa_s->manual_scan_use_id) {
abc05534
DS
3439 wpa_msg_ctrl(wpa_s, MSG_INFO,
3440 WPA_EVENT_SCAN_STARTED "id=%u",
3441 wpa_s->manual_scan_id);
d81c73be 3442 } else {
abc05534
DS
3443 wpa_msg_ctrl(wpa_s, MSG_INFO,
3444 WPA_EVENT_SCAN_STARTED);
d81c73be 3445 }
a5f40eff
JM
3446 } else {
3447 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
d90bfa97 3448 wpa_s->radio->external_scan_running = 1;
abc05534 3449 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
a5f40eff
JM
3450 }
3451 break;
6fc6879b 3452 case EVENT_SCAN_RESULTS:
1446afc8
IP
3453 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3454 wpa_s->scan_res_handler = NULL;
3455 wpa_s->own_scan_running = 0;
3456 wpa_s->radio->external_scan_running = 0;
3457 wpa_s->last_scan_req = NORMAL_SCAN_REQ;
3458 break;
3459 }
3460
adcd7c4b
KV
3461 if (!(data && data->scan_info.external_scan) &&
3462 os_reltime_initialized(&wpa_s->scan_start_time)) {
dc3906cb
JM
3463 struct os_reltime now, diff;
3464 os_get_reltime(&now);
3465 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3466 wpa_s->scan_start_time.sec = 0;
3467 wpa_s->scan_start_time.usec = 0;
3468 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3469 diff.sec, diff.usec);
3470 }
b0e669be
JM
3471 if (wpa_supplicant_event_scan_results(wpa_s, data))
3472 break; /* interface may have been removed */
adcd7c4b
KV
3473 if (!(data && data->scan_info.external_scan))
3474 wpa_s->own_scan_running = 0;
3475 if (data && data->scan_info.nl_scan_event)
3476 wpa_s->radio->external_scan_running = 0;
6428d0a7 3477 radio_work_check_next(wpa_s);
6fc6879b
JM
3478 break;
3479#endif /* CONFIG_NO_SCAN_PROCESSING */
3480 case EVENT_ASSOCINFO:
3481 wpa_supplicant_event_associnfo(wpa_s, data);
3482 break;
3483 case EVENT_INTERFACE_STATUS:
3484 wpa_supplicant_event_interface_status(wpa_s, data);
3485 break;
3486 case EVENT_PMKID_CANDIDATE:
3487 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3488 break;
3489#ifdef CONFIG_PEERKEY
3490 case EVENT_STKSTART:
3491 wpa_supplicant_event_stkstart(wpa_s, data);
3492 break;
3493#endif /* CONFIG_PEERKEY */
281ff0aa
GP
3494#ifdef CONFIG_TDLS
3495 case EVENT_TDLS:
3496 wpa_supplicant_event_tdls(wpa_s, data);
3497 break;
3498#endif /* CONFIG_TDLS */
ad3872a3 3499#ifdef CONFIG_WNM
75cad1a0
XC
3500 case EVENT_WNM:
3501 wpa_supplicant_event_wnm(wpa_s, data);
3502 break;
ad3872a3 3503#endif /* CONFIG_WNM */
6fc6879b
JM
3504#ifdef CONFIG_IEEE80211R
3505 case EVENT_FT_RESPONSE:
3506 wpa_supplicant_event_ft_response(wpa_s, data);
3507 break;
3508#endif /* CONFIG_IEEE80211R */
11ef8d35
JM
3509#ifdef CONFIG_IBSS_RSN
3510 case EVENT_IBSS_RSN_START:
3511 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3512 break;
3513#endif /* CONFIG_IBSS_RSN */
efa46078 3514 case EVENT_ASSOC_REJECT:
c05d6d18
JM
3515 if (data->assoc_reject.bssid)
3516 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3517 "bssid=" MACSTR " status_code=%u",
3518 MAC2STR(data->assoc_reject.bssid),
3519 data->assoc_reject.status_code);
3520 else
3521 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3522 "status_code=%u",
3523 data->assoc_reject.status_code);
c7fb678f
NS
3524 wpa_s->assoc_status_code = data->assoc_reject.status_code;
3525 wpas_notify_assoc_status_code(wpa_s);
ea78c315
JM
3526 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3527 sme_event_assoc_reject(wpa_s, data);
10737aba
JM
3528 else {
3529 const u8 *bssid = data->assoc_reject.bssid;
3530 if (bssid == NULL || is_zero_ether_addr(bssid))
3531 bssid = wpa_s->pending_bssid;
3532 wpas_connection_failed(wpa_s, bssid);
3533 wpa_supplicant_mark_disassoc(wpa_s);
3534 }
efa46078 3535 break;
da1fb17c 3536 case EVENT_AUTH_TIMED_OUT:
9a700ff9
JM
3537 /* It is possible to get this event from earlier connection */
3538 if (wpa_s->current_ssid &&
3539 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3540 wpa_dbg(wpa_s, MSG_DEBUG,
3541 "Ignore AUTH_TIMED_OUT in mesh configuration");
3542 break;
3543 }
ea78c315
JM
3544 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3545 sme_event_auth_timed_out(wpa_s, data);
da1fb17c
JM
3546 break;
3547 case EVENT_ASSOC_TIMED_OUT:
9a700ff9
JM
3548 /* It is possible to get this event from earlier connection */
3549 if (wpa_s->current_ssid &&
3550 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3551 wpa_dbg(wpa_s, MSG_DEBUG,
3552 "Ignore ASSOC_TIMED_OUT in mesh configuration");
3553 break;
3554 }
ea78c315
JM
3555 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3556 sme_event_assoc_timed_out(wpa_s, data);
da1fb17c 3557 break;
f8b1f695 3558 case EVENT_TX_STATUS:
f049052b
BG
3559 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3560 " type=%d stype=%d",
3561 MAC2STR(data->tx_status.dst),
3562 data->tx_status.type, data->tx_status.stype);
24f6497c 3563#ifdef CONFIG_AP
9bae1be0 3564 if (wpa_s->ap_iface == NULL) {
24f6497c 3565#ifdef CONFIG_OFFCHANNEL
9bae1be0
JM
3566 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3567 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
24f6497c 3568 offchannel_send_action_tx_status(
9bae1be0
JM
3569 wpa_s, data->tx_status.dst,
3570 data->tx_status.data,
3571 data->tx_status.data_len,
93b7ddd0 3572 data->tx_status.ack ?
24f6497c
JM
3573 OFFCHANNEL_SEND_ACTION_SUCCESS :
3574 OFFCHANNEL_SEND_ACTION_NO_ACK);
3575#endif /* CONFIG_OFFCHANNEL */
9bae1be0
JM
3576 break;
3577 }
24f6497c
JM
3578#endif /* CONFIG_AP */
3579#ifdef CONFIG_OFFCHANNEL
f049052b
BG
3580 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3581 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
9bae1be0
JM
3582 /*
3583 * Catch TX status events for Action frames we sent via group
3584 * interface in GO mode.
3585 */
3586 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3587 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3588 os_memcmp(wpa_s->parent->pending_action_dst,
3589 data->tx_status.dst, ETH_ALEN) == 0) {
24f6497c 3590 offchannel_send_action_tx_status(
9bae1be0
JM
3591 wpa_s->parent, data->tx_status.dst,
3592 data->tx_status.data,
3593 data->tx_status.data_len,
1d39378a 3594 data->tx_status.ack ?
24f6497c
JM
3595 OFFCHANNEL_SEND_ACTION_SUCCESS :
3596 OFFCHANNEL_SEND_ACTION_NO_ACK);
f8b1f695 3597 break;
9bae1be0 3598 }
24f6497c
JM
3599#endif /* CONFIG_OFFCHANNEL */
3600#ifdef CONFIG_AP
f8b1f695
JM
3601 switch (data->tx_status.type) {
3602 case WLAN_FC_TYPE_MGMT:
3603 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3604 data->tx_status.data_len,
3605 data->tx_status.stype,
3606 data->tx_status.ack);
3607 break;
3608 case WLAN_FC_TYPE_DATA:
3609 ap_tx_status(wpa_s, data->tx_status.dst,
3610 data->tx_status.data,
3611 data->tx_status.data_len,
3612 data->tx_status.ack);
3613 break;
3614 }
24f6497c 3615#endif /* CONFIG_AP */
f8b1f695 3616 break;
24f6497c 3617#ifdef CONFIG_AP
dd840f79
JB
3618 case EVENT_EAPOL_TX_STATUS:
3619 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3620 data->eapol_tx_status.data,
3621 data->eapol_tx_status.data_len,
3622 data->eapol_tx_status.ack);
3623 break;
bcf24348
JB
3624 case EVENT_DRIVER_CLIENT_POLL_OK:
3625 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3626 break;
f8b1f695
JM
3627 case EVENT_RX_FROM_UNKNOWN:
3628 if (wpa_s->ap_iface == NULL)
3629 break;
9b90955e
JB
3630 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3631 data->rx_from_unknown.wds);
f8b1f695 3632 break;
1b487b8b 3633 case EVENT_CH_SWITCH:
61f121d9 3634 if (!data || !wpa_s->current_ssid)
1b487b8b 3635 break;
1b487b8b 3636
61f121d9
IP
3637 wpa_s->assoc_freq = data->ch_switch.freq;
3638 wpa_s->current_ssid->frequency = data->ch_switch.freq;
3639
3640 if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
3641 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
3642 wpa_s->current_ssid->mode ==
3643 WPAS_MODE_P2P_GROUP_FORMATION) {
3644 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3645 data->ch_switch.ht_enabled,
3646 data->ch_switch.ch_offset,
3647 data->ch_switch.ch_width,
3648 data->ch_switch.cf1,
3649 data->ch_switch.cf2);
3650 }
3bafb0d8
AO
3651
3652 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
1b487b8b 3653 break;
bd0f68c4
AK
3654#ifdef NEED_AP_MLME
3655 case EVENT_DFS_RADAR_DETECTED:
3656 if (data)
3657 wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event);
3658 break;
3659 case EVENT_DFS_CAC_STARTED:
3660 if (data)
3661 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
3662 break;
3663 case EVENT_DFS_CAC_FINISHED:
3664 if (data)
3665 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
3666 break;
3667 case EVENT_DFS_CAC_ABORTED:
3668 if (data)
3669 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
3670 break;
3671 case EVENT_DFS_NOP_FINISHED:
3672 if (data)
3673 wpas_event_dfs_cac_nop_finished(wpa_s,
3674 &data->dfs_event);
3675 break;
3676#endif /* NEED_AP_MLME */
13adc57b 3677#endif /* CONFIG_AP */
2d43d37f
JB
3678 case EVENT_RX_MGMT: {
3679 u16 fc, stype;
3680 const struct ieee80211_mgmt *mgmt;
3681
60b893df
JM
3682#ifdef CONFIG_TESTING_OPTIONS
3683 if (wpa_s->ext_mgmt_frame_handling) {
3684 struct rx_mgmt *rx = &data->rx_mgmt;
3685 size_t hex_len = 2 * rx->frame_len + 1;
3686 char *hex = os_malloc(hex_len);
3687 if (hex) {
3688 wpa_snprintf_hex(hex, hex_len,
3689 rx->frame, rx->frame_len);
3690 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3691 rx->freq, rx->datarate, rx->ssi_signal,
3692 hex);
3693 os_free(hex);
3694 }
3695 break;
3696 }
3697#endif /* CONFIG_TESTING_OPTIONS */
3698
2d43d37f
JB
3699 mgmt = (const struct ieee80211_mgmt *)
3700 data->rx_mgmt.frame;
3701 fc = le_to_host16(mgmt->frame_control);
3702 stype = WLAN_FC_GET_STYPE(fc);
3703
13adc57b 3704#ifdef CONFIG_AP
9bae1be0 3705 if (wpa_s->ap_iface == NULL) {
13adc57b 3706#endif /* CONFIG_AP */
9bae1be0 3707#ifdef CONFIG_P2P
9bae1be0 3708 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
c01120a0 3709 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
9bae1be0 3710 const u8 *src = mgmt->sa;
c01120a0
JM
3711 const u8 *ie;
3712 size_t ie_len;
3713
3714 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
3715 ie_len = data->rx_mgmt.frame_len -
3716 IEEE80211_HDRLEN;
baf513d6
JB
3717 wpas_p2p_probe_req_rx(
3718 wpa_s, src, mgmt->da,
3719 mgmt->bssid, ie, ie_len,
734ddf61 3720 data->rx_mgmt.freq,
baf513d6 3721 data->rx_mgmt.ssi_signal);
9bae1be0
JM
3722 break;
3723 }
3724#endif /* CONFIG_P2P */
13adc57b 3725#ifdef CONFIG_IBSS_RSN
5f92659d
BC
3726 if (wpa_s->current_ssid &&
3727 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3728 stype == WLAN_FC_STYPE_AUTH &&
13adc57b
AQ
3729 data->rx_mgmt.frame_len >= 30) {
3730 wpa_supplicant_event_ibss_auth(wpa_s, data);
3731 break;
3732 }
3733#endif /* CONFIG_IBSS_RSN */
dbfb8e82
JM
3734
3735 if (stype == WLAN_FC_STYPE_ACTION) {
3736 wpas_event_rx_mgmt_action(
70d95373
JM
3737 wpa_s, data->rx_mgmt.frame,
3738 data->rx_mgmt.frame_len,
70d1e728
AO
3739 data->rx_mgmt.freq,
3740 data->rx_mgmt.ssi_signal);
dbfb8e82
JM
3741 break;
3742 }
3743
5f92659d
BC
3744 if (wpa_s->ifmsh) {
3745 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3746 break;
3747 }
3748
f049052b
BG
3749 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3750 "management frame in non-AP mode");
f8b1f695 3751 break;
13adc57b 3752#ifdef CONFIG_AP
9bae1be0 3753 }
2d43d37f
JB
3754
3755 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
c01120a0
JM
3756 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) {
3757 const u8 *ie;
3758 size_t ie_len;
3759
3760 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN;
3761 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN;
2d43d37f
JB
3762
3763 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3764 mgmt->bssid, ie, ie_len,
3765 data->rx_mgmt.ssi_signal);
2d43d37f
JB
3766 }
3767
2a8b7416 3768 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
13adc57b 3769#endif /* CONFIG_AP */
f8b1f695 3770 break;
2d43d37f 3771 }
e67b55fb 3772 case EVENT_RX_PROBE_REQ:
b211f3eb
JM
3773 if (data->rx_probe_req.sa == NULL ||
3774 data->rx_probe_req.ie == NULL)
3775 break;
e67b55fb
JM
3776#ifdef CONFIG_AP
3777 if (wpa_s->ap_iface) {
3778 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3779 data->rx_probe_req.sa,
04a85e44
JM
3780 data->rx_probe_req.da,
3781 data->rx_probe_req.bssid,
e67b55fb 3782 data->rx_probe_req.ie,
baf513d6
JB
3783 data->rx_probe_req.ie_len,
3784 data->rx_probe_req.ssi_signal);
e67b55fb
JM
3785 break;
3786 }
3787#endif /* CONFIG_AP */
e67b55fb 3788 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
04a85e44
JM
3789 data->rx_probe_req.da,
3790 data->rx_probe_req.bssid,
e67b55fb 3791 data->rx_probe_req.ie,
baf513d6 3792 data->rx_probe_req.ie_len,
734ddf61 3793 0,
baf513d6 3794 data->rx_probe_req.ssi_signal);
036f7c4a 3795 break;
9bae1be0 3796 case EVENT_REMAIN_ON_CHANNEL:
24f6497c
JM
3797#ifdef CONFIG_OFFCHANNEL
3798 offchannel_remain_on_channel_cb(
3799 wpa_s, data->remain_on_channel.freq,
3800 data->remain_on_channel.duration);
3801#endif /* CONFIG_OFFCHANNEL */
9bae1be0
JM
3802 wpas_p2p_remain_on_channel_cb(
3803 wpa_s, data->remain_on_channel.freq,
3804 data->remain_on_channel.duration);
3805 break;
3806 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
24f6497c
JM
3807#ifdef CONFIG_OFFCHANNEL
3808 offchannel_cancel_remain_on_channel_cb(
3809 wpa_s, data->remain_on_channel.freq);
3810#endif /* CONFIG_OFFCHANNEL */
9bae1be0
JM
3811 wpas_p2p_cancel_remain_on_channel_cb(
3812 wpa_s, data->remain_on_channel.freq);
3813 break;
a8e0505b
JM
3814 case EVENT_EAPOL_RX:
3815 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3816 data->eapol_rx.data,
3817 data->eapol_rx.data_len);
3818 break;
e2f74005 3819 case EVENT_SIGNAL_CHANGE:
0cd86028
JM
3820 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3821 "above=%d signal=%d noise=%d txrate=%d",
3822 data->signal_change.above_threshold,
3823 data->signal_change.current_signal,
3824 data->signal_change.current_noise,
3825 data->signal_change.current_txrate);
71d77adb
MM
3826 wpa_bss_update_level(wpa_s->current_bss,
3827 data->signal_change.current_signal);
e2f74005 3828 bgscan_notify_signal_change(
60a972a6 3829 wpa_s, data->signal_change.above_threshold,
174fa789
PS
3830 data->signal_change.current_signal,
3831 data->signal_change.current_noise,
3832 data->signal_change.current_txrate);
e2f74005 3833 break;
8401a6b0 3834 case EVENT_INTERFACE_ENABLED:
f049052b 3835 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
8401a6b0 3836 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
bfba8deb 3837 wpa_supplicant_update_mac_addr(wpa_s);
782e2f78
IP
3838 if (wpa_s->p2p_mgmt) {
3839 wpa_supplicant_set_state(wpa_s,
3840 WPA_DISCONNECTED);
3841 break;
3842 }
3843
199716ad 3844#ifdef CONFIG_AP
9919f7a2
JB
3845 if (!wpa_s->ap_iface) {
3846 wpa_supplicant_set_state(wpa_s,
3847 WPA_DISCONNECTED);
635874b5 3848 wpa_s->scan_req = NORMAL_SCAN_REQ;
9919f7a2
JB
3849 wpa_supplicant_req_scan(wpa_s, 0, 0);
3850 } else
3851 wpa_supplicant_set_state(wpa_s,
3852 WPA_COMPLETED);
199716ad
BG
3853#else /* CONFIG_AP */
3854 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3855 wpa_supplicant_req_scan(wpa_s, 0, 0);
3856#endif /* CONFIG_AP */
8401a6b0
JM
3857 }
3858 break;
3859 case EVENT_INTERFACE_DISABLED:
f049052b 3860 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
6f72577f
IP
3861#ifdef CONFIG_P2P
3862 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3863 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3864 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
635874b5
JM
3865 /*
3866 * Mark interface disabled if this happens to end up not
3867 * being removed as a separate P2P group interface.
3868 */
3869 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
6f72577f
IP
3870 /*
3871 * The interface was externally disabled. Remove
3872 * it assuming an external entity will start a
3873 * new session if needed.
3874 */
8f2cf379
JM
3875 if (wpa_s->current_ssid &&
3876 wpa_s->current_ssid->p2p_group)
3877 wpas_p2p_interface_unavailable(wpa_s);
3878 else
3879 wpas_p2p_disconnect(wpa_s);
635874b5
JM
3880 /*
3881 * wpa_s instance may have been freed, so must not use
3882 * it here anymore.
3883 */
6f72577f
IP
3884 break;
3885 }
c71c2416
JM
3886 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3887 p2p_in_progress(wpa_s->global->p2p) > 1) {
3888 /* This radio work will be cancelled, so clear P2P
3889 * state as well.
3890 */
3891 p2p_stop_find(wpa_s->global->p2p);
3892 }
6f72577f
IP
3893#endif /* CONFIG_P2P */
3894
b7a6702f
JM
3895 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3896 /*
3897 * Indicate disconnection to keep ctrl_iface events
3898 * consistent.
3899 */
3900 wpa_supplicant_event_disassoc(
3901 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3902 }
8401a6b0 3903 wpa_supplicant_mark_disassoc(wpa_s);
b3253ebb
AO
3904 radio_remove_works(wpa_s, NULL, 0);
3905
8401a6b0
JM
3906 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3907 break;
b5c9da8d 3908 case EVENT_CHANNEL_LIST_CHANGED:
142817b2
JM
3909 wpa_supplicant_update_channel_list(
3910 wpa_s, &data->channel_list_changed);
c973f386
JM
3911 break;
3912 case EVENT_INTERFACE_UNAVAILABLE:
c973f386 3913 wpas_p2p_interface_unavailable(wpa_s);
7cfc4ac3
AGS
3914 break;
3915 case EVENT_BEST_CHANNEL:
f049052b
BG
3916 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3917 "(%d %d %d)",
3918 data->best_chan.freq_24, data->best_chan.freq_5,
3919 data->best_chan.freq_overall);
7cfc4ac3
AGS
3920 wpa_s->best_24_freq = data->best_chan.freq_24;
3921 wpa_s->best_5_freq = data->best_chan.freq_5;
3922 wpa_s->best_overall_freq = data->best_chan.freq_overall;
7cfc4ac3
AGS
3923 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3924 data->best_chan.freq_5,
3925 data->best_chan.freq_overall);
b5c9da8d 3926 break;
7d878ca7
JM
3927 case EVENT_UNPROT_DEAUTH:
3928 wpa_supplicant_event_unprot_deauth(wpa_s,
3929 &data->unprot_deauth);
3930 break;
3931 case EVENT_UNPROT_DISASSOC:
3932 wpa_supplicant_event_unprot_disassoc(wpa_s,
3933 &data->unprot_disassoc);
3934 break;
0d7e5a3a
JB
3935 case EVENT_STATION_LOW_ACK:
3936#ifdef CONFIG_AP
3937 if (wpa_s->ap_iface && data)
3938 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3939 data->low_ack.addr);
3940#endif /* CONFIG_AP */
8f15f711
AN
3941#ifdef CONFIG_TDLS
3942 if (data)
947f900f
AN
3943 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
3944 data->low_ack.addr);
8f15f711 3945#endif /* CONFIG_TDLS */
0d7e5a3a 3946 break;
ea244d21
XC
3947 case EVENT_IBSS_PEER_LOST:
3948#ifdef CONFIG_IBSS_RSN
3949 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
3950#endif /* CONFIG_IBSS_RSN */
3951 break;
b14a210c
JB
3952 case EVENT_DRIVER_GTK_REKEY:
3953 if (os_memcmp(data->driver_gtk_rekey.bssid,
3954 wpa_s->bssid, ETH_ALEN))
3955 break;
3956 if (!wpa_s->wpa)
3957 break;
3958 wpa_sm_update_replay_ctr(wpa_s->wpa,
3959 data->driver_gtk_rekey.replay_ctr);
3960 break;
cbdf3507 3961 case EVENT_SCHED_SCAN_STOPPED:
dd271857 3962 wpa_s->pno = 0;
cbdf3507 3963 wpa_s->sched_scanning = 0;
bef5e9a8 3964 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
cbdf3507
LC
3965 wpa_supplicant_notify_scanning(wpa_s, 0);
3966
9b6f44cb
JM
3967 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
3968 break;
3969
cbdf3507 3970 /*
cf70d298
RM
3971 * Start a new sched scan to continue searching for more SSIDs
3972 * either if timed out or PNO schedule scan is pending.
cbdf3507 3973 */
5e3ddf4d
AB
3974 if (wpa_s->sched_scan_timed_out) {
3975 wpa_supplicant_req_sched_scan(wpa_s);
3976 } else if (wpa_s->pno_sched_pending) {
3977 wpa_s->pno_sched_pending = 0;
3978 wpas_start_pno(wpa_s);
02e122a9
DS
3979 } else if (resched) {
3980 wpa_supplicant_req_scan(wpa_s, 0, 0);
cf70d298
RM
3981 }
3982
cbdf3507 3983 break;
783fcb7d
GG
3984 case EVENT_WPS_BUTTON_PUSHED:
3985#ifdef CONFIG_WPS
3986 wpas_wps_start_pbc(wpa_s, NULL, 0);
3987#endif /* CONFIG_WPS */
3988 break;
253f2e37
AH
3989 case EVENT_AVOID_FREQUENCIES:
3990 wpa_supplicant_notify_avoid_freq(wpa_s, data);
3991 break;
3140803b
RM
3992 case EVENT_CONNECT_FAILED_REASON:
3993#ifdef CONFIG_AP
3994 if (!wpa_s->ap_iface || !data)
3995 break;
3996 hostapd_event_connect_failed_reason(
3997 wpa_s->ap_iface->bss[0],
3998 data->connect_failed_reason.addr,
3999 data->connect_failed_reason.code);
4000#endif /* CONFIG_AP */
4001 break;
8319e312 4002 case EVENT_NEW_PEER_CANDIDATE:
eac02316
MH
4003#ifdef CONFIG_MESH
4004 if (!wpa_s->ifmsh || !data)
4005 break;
8319e312
TP
4006 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
4007 data->mesh_peer.ies,
4008 data->mesh_peer.ie_len);
eac02316 4009#endif /* CONFIG_MESH */
8319e312 4010 break;
96bc5086
TB
4011 case EVENT_SURVEY:
4012#ifdef CONFIG_AP
4013 if (!wpa_s->ap_iface)
4014 break;
4015 hostapd_event_get_survey(wpa_s->ap_iface,
4016 &data->survey_results);
4017#endif /* CONFIG_AP */
4018 break;
d9909717
TB
4019 case EVENT_ACS_CHANNEL_SELECTED:
4020#ifdef CONFIG_ACS
4021 if (!wpa_s->ap_iface)
4022 break;
4023 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
4024 &data->acs_selected_channels);
4025#endif /* CONFIG_ACS */
4026 break;
6fc6879b 4027 default:
f049052b 4028 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
6fc6879b
JM
4029 break;
4030 }
4031}
45e3fc72
RM
4032
4033
4034void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event,
4035 union wpa_event_data *data)
4036{
4037 struct wpa_supplicant *wpa_s;
4038
4039 if (event != EVENT_INTERFACE_STATUS)
4040 return;
4041
4042 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname);
4043 if (wpa_s && wpa_s->driver->get_ifindex) {
4044 unsigned int ifindex;
4045
4046 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv);
4047 if (ifindex != data->interface_status.ifindex) {
4048 wpa_dbg(wpa_s, MSG_DEBUG,
4049 "interface status ifindex %d mismatch (%d)",
4050 ifindex, data->interface_status.ifindex);
4051 return;
4052 }
4053 }
2e997eec
RM
4054#ifdef CONFIG_MATCH_IFACE
4055 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) {
4056 struct wpa_interface *wpa_i;
4057
4058 wpa_i = wpa_supplicant_match_iface(
4059 ctx, data->interface_status.ifname);
4060 if (!wpa_i)
4061 return;
4062 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL);
4063 os_free(wpa_i);
4064 if (wpa_s)
4065 wpa_s->matched = 1;
4066 }
4067#endif /* CONFIG_MATCH_IFACE */
45e3fc72
RM
4068
4069 if (wpa_s)
4070 wpa_supplicant_event(wpa_s, event, data);
4071}