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[thirdparty/hostap.git] / wpa_supplicant / events.c
CommitLineData
6fc6879b
JM
1/*
2 * WPA Supplicant - Driver event processing
d12a51b5 3 * Copyright (c) 2003-2014, Jouni Malinen <j@w1.fi>
6fc6879b 4 *
0f3d578e
JM
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
6fc6879b
JM
7 */
8
9#include "includes.h"
10
11#include "common.h"
12#include "eapol_supp/eapol_supp_sm.h"
3acb5005 13#include "rsn_supp/wpa.h"
6fc6879b 14#include "eloop.h"
6fc6879b
JM
15#include "config.h"
16#include "l2_packet/l2_packet.h"
17#include "wpa_supplicant_i.h"
2d5b792d 18#include "driver_i.h"
6fc6879b 19#include "pcsc_funcs.h"
3acb5005
JM
20#include "rsn_supp/preauth.h"
21#include "rsn_supp/pmksa_cache.h"
90973fb2 22#include "common/wpa_ctrl.h"
6fc6879b 23#include "eap_peer/eap.h"
1d041bec 24#include "ap/hostapd.h"
93b7ddd0 25#include "p2p/p2p.h"
75cad1a0 26#include "wnm_sta.h"
8bac466b 27#include "notify.h"
90973fb2 28#include "common/ieee802_11_defs.h"
54f489be 29#include "common/ieee802_11_common.h"
bbb921da 30#include "crypto/random.h"
6fc6879b
JM
31#include "blacklist.h"
32#include "wpas_glue.h"
351f09a2 33#include "wps_supplicant.h"
11ef8d35 34#include "ibss_rsn.h"
c2a04078 35#include "sme.h"
04ea7b79 36#include "gas_query.h"
9bae1be0 37#include "p2p_supplicant.h"
60b94c98 38#include "bgscan.h"
7c865c68 39#include "autoscan.h"
f8b1f695 40#include "ap.h"
6fa81a3b 41#include "bss.h"
9ba9fa07 42#include "scan.h"
24f6497c 43#include "offchannel.h"
4d5bda5f 44#include "interworking.h"
8319e312 45#include "mesh.h"
5f92659d 46#include "mesh_mpm.h"
a0413b17 47#include "wmm_ac.h"
6fc6879b
JM
48
49
5d5c4ee5 50#ifndef CONFIG_NO_SCAN_PROCESSING
06b7f58d 51static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
cc4952ad 52 int new_scan, int own_request);
5d5c4ee5 53#endif /* CONFIG_NO_SCAN_PROCESSING */
d6bbcce4
JM
54
55
00e5e3d5
JM
56static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
57 struct wpa_ssid *ssid)
58{
4e1eae1d 59 struct os_reltime now;
00e5e3d5
JM
60
61 if (ssid == NULL || ssid->disabled_until.sec == 0)
62 return 0;
63
4e1eae1d 64 os_get_reltime(&now);
00e5e3d5
JM
65 if (ssid->disabled_until.sec > now.sec)
66 return ssid->disabled_until.sec - now.sec;
67
68 wpas_clear_temp_disabled(wpa_s, ssid, 0);
69
70 return 0;
71}
72
73
5cd47405
JM
74static struct wpa_bss * wpa_supplicant_get_new_bss(
75 struct wpa_supplicant *wpa_s, const u8 *bssid)
76{
77 struct wpa_bss *bss = NULL;
78 struct wpa_ssid *ssid = wpa_s->current_ssid;
79
80 if (ssid->ssid_len > 0)
81 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
82 if (!bss)
83 bss = wpa_bss_get_bssid(wpa_s, bssid);
84
85 return bss;
86}
87
88
068e3877
JM
89static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
90{
91 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
92
93 if (!bss) {
94 wpa_supplicant_update_scan_results(wpa_s);
95
96 /* Get the BSS from the new scan results */
97 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
98 }
99
100 if (bss)
101 wpa_s->current_bss = bss;
102}
103
104
6fc6879b
JM
105static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
106{
8bac466b 107 struct wpa_ssid *ssid, *old_ssid;
00e5e3d5 108 int res;
6fc6879b 109
068e3877
JM
110 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
111 wpa_supplicant_update_current_bss(wpa_s);
6fc6879b 112 return 0;
068e3877 113 }
6fc6879b 114
f049052b
BG
115 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
116 "information");
6fc6879b
JM
117 ssid = wpa_supplicant_get_ssid(wpa_s);
118 if (ssid == NULL) {
f049052b
BG
119 wpa_msg(wpa_s, MSG_INFO,
120 "No network configuration found for the current AP");
6fc6879b
JM
121 return -1;
122 }
123
349493bd 124 if (wpas_network_disabled(wpa_s, ssid)) {
f049052b 125 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
6fc6879b
JM
126 return -1;
127 }
128
6407f413
JM
129 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
130 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
131 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
132 return -1;
133 }
134
00e5e3d5
JM
135 res = wpas_temp_disabled(wpa_s, ssid);
136 if (res > 0) {
137 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
138 "disabled for %d second(s)", res);
139 return -1;
140 }
141
f049052b
BG
142 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
143 "current AP");
0bf927a0 144 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
6fc6879b
JM
145 u8 wpa_ie[80];
146 size_t wpa_ie_len = sizeof(wpa_ie);
cbf61176
JM
147 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
148 wpa_ie, &wpa_ie_len) < 0)
149 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
6fc6879b
JM
150 } else {
151 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
152 }
153
154 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
155 eapol_sm_invalidate_cached_session(wpa_s->eapol);
8bac466b 156 old_ssid = wpa_s->current_ssid;
6fc6879b 157 wpa_s->current_ssid = ssid;
5cd47405 158
068e3877 159 wpa_supplicant_update_current_bss(wpa_s);
5cd47405 160
6fc6879b
JM
161 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
162 wpa_supplicant_initiate_eapol(wpa_s);
8bac466b
JM
163 if (old_ssid != wpa_s->current_ssid)
164 wpas_notify_network_changed(wpa_s);
6fc6879b
JM
165
166 return 0;
167}
168
169
01a17491 170void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
6fc6879b
JM
171{
172 struct wpa_supplicant *wpa_s = eloop_ctx;
173
174 if (wpa_s->countermeasures) {
175 wpa_s->countermeasures = 0;
176 wpa_drv_set_countermeasures(wpa_s, 0);
177 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
178 wpa_supplicant_req_scan(wpa_s, 0, 0);
179 }
180}
181
182
183void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
184{
8bac466b
JM
185 int bssid_changed;
186
b6668734
JM
187 wnm_bss_keep_alive_deinit(wpa_s);
188
78177a00
JM
189#ifdef CONFIG_IBSS_RSN
190 ibss_rsn_deinit(wpa_s->ibss_rsn);
191 wpa_s->ibss_rsn = NULL;
192#endif /* CONFIG_IBSS_RSN */
193
ca62e114
JM
194#ifdef CONFIG_AP
195 wpa_supplicant_ap_deinit(wpa_s);
196#endif /* CONFIG_AP */
197
8401a6b0
JM
198 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
199 return;
200
6fc6879b 201 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
8bac466b 202 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
6fc6879b
JM
203 os_memset(wpa_s->bssid, 0, ETH_ALEN);
204 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
4e70bbf1 205 sme_clear_on_disassoc(wpa_s);
b1aebbc4
JM
206#ifdef CONFIG_P2P
207 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
208#endif /* CONFIG_P2P */
be8be671 209 wpa_s->current_bss = NULL;
3c85f144 210 wpa_s->assoc_freq = 0;
8fd0f0f3 211
8bac466b
JM
212 if (bssid_changed)
213 wpas_notify_bssid_changed(wpa_s);
214
6fc6879b
JM
215 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
216 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
56586197 217 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
6fc6879b
JM
218 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
219 wpa_s->ap_ies_from_associnfo = 0;
0d30cc24 220 wpa_s->current_ssid = NULL;
25a8f9e3 221 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
0d30cc24 222 wpa_s->key_mgmt = 0;
b361d580
AK
223
224 wpas_rrm_reset(wpa_s);
6fc6879b
JM
225}
226
227
228static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
229{
230 struct wpa_ie_data ie;
231 int pmksa_set = -1;
232 size_t i;
233
234 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
235 ie.pmkid == NULL)
236 return;
237
238 for (i = 0; i < ie.num_pmkid; i++) {
239 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
240 ie.pmkid + i * PMKID_LEN,
241 NULL, NULL, 0);
242 if (pmksa_set == 0) {
243 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
244 break;
245 }
246 }
247
f049052b
BG
248 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
249 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
6fc6879b
JM
250}
251
252
253static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
254 union wpa_event_data *data)
255{
256 if (data == NULL) {
f049052b
BG
257 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
258 "event");
6fc6879b
JM
259 return;
260 }
f049052b
BG
261 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
262 " index=%d preauth=%d",
263 MAC2STR(data->pmkid_candidate.bssid),
264 data->pmkid_candidate.index,
265 data->pmkid_candidate.preauth);
6fc6879b
JM
266
267 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
268 data->pmkid_candidate.index,
269 data->pmkid_candidate.preauth);
270}
271
272
273static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
274{
275 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
276 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
277 return 0;
278
279#ifdef IEEE8021X_EAPOL
280 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
281 wpa_s->current_ssid &&
282 !(wpa_s->current_ssid->eapol_flags &
283 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
284 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
285 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
286 * plaintext or static WEP keys). */
287 return 0;
288 }
289#endif /* IEEE8021X_EAPOL */
290
291 return 1;
292}
293
294
295/**
296 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
297 * @wpa_s: pointer to wpa_supplicant data
298 * @ssid: Configuration data for the network
299 * Returns: 0 on success, -1 on failure
300 *
301 * This function is called when starting authentication with a network that is
302 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
303 */
304int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
305 struct wpa_ssid *ssid)
306{
307#ifdef IEEE8021X_EAPOL
b832d34c 308#ifdef PCSC_FUNCS
eb324600 309 int aka = 0, sim = 0;
6fc6879b 310
62f736dd
JT
311 if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
312 wpa_s->scard != NULL || wpa_s->conf->external_sim)
6fc6879b
JM
313 return 0;
314
62f736dd 315 if (ssid == NULL || ssid->eap.eap_methods == NULL) {
6fc6879b
JM
316 sim = 1;
317 aka = 1;
318 } else {
319 struct eap_method_type *eap = ssid->eap.eap_methods;
320 while (eap->vendor != EAP_VENDOR_IETF ||
321 eap->method != EAP_TYPE_NONE) {
322 if (eap->vendor == EAP_VENDOR_IETF) {
323 if (eap->method == EAP_TYPE_SIM)
324 sim = 1;
3d332fe7
JM
325 else if (eap->method == EAP_TYPE_AKA ||
326 eap->method == EAP_TYPE_AKA_PRIME)
6fc6879b
JM
327 aka = 1;
328 }
329 eap++;
330 }
331 }
332
333 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
334 sim = 0;
3d332fe7
JM
335 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
336 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
337 NULL)
6fc6879b
JM
338 aka = 0;
339
340 if (!sim && !aka) {
f049052b
BG
341 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
342 "use SIM, but neither EAP-SIM nor EAP-AKA are "
343 "enabled");
6fc6879b
JM
344 return 0;
345 }
346
f049052b
BG
347 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
348 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
eb324600 349
5a620604 350 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
6fc6879b 351 if (wpa_s->scard == NULL) {
f049052b
BG
352 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
353 "(pcsc-lite)");
6fc6879b
JM
354 return -1;
355 }
356 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
357 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
b832d34c 358#endif /* PCSC_FUNCS */
6fc6879b
JM
359#endif /* IEEE8021X_EAPOL */
360
361 return 0;
362}
363
364
365#ifndef CONFIG_NO_SCAN_PROCESSING
86bd1410
JM
366
367static int has_wep_key(struct wpa_ssid *ssid)
368{
369 int i;
370
371 for (i = 0; i < NUM_WEP_KEYS; i++) {
372 if (ssid->wep_key_len[i])
373 return 1;
374 }
375
376 return 0;
377}
378
379
620c7837 380static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
6fc6879b
JM
381 struct wpa_ssid *ssid)
382{
86bd1410 383 int privacy = 0;
6fc6879b
JM
384
385 if (ssid->mixed_cell)
386 return 1;
387
0632542b
AT
388#ifdef CONFIG_WPS
389 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
390 return 1;
391#endif /* CONFIG_WPS */
392
86bd1410
JM
393 if (has_wep_key(ssid))
394 privacy = 1;
395
6fc6879b
JM
396#ifdef IEEE8021X_EAPOL
397 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
398 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
399 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
400 privacy = 1;
401#endif /* IEEE8021X_EAPOL */
402
29fbc522
JM
403 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
404 privacy = 1;
405
df0f01d9
JM
406 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
407 privacy = 1;
408
6fc6879b
JM
409 if (bss->caps & IEEE80211_CAP_PRIVACY)
410 return privacy;
411 return !privacy;
412}
413
414
a6099152
JM
415static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
416 struct wpa_ssid *ssid,
620c7837 417 struct wpa_bss *bss)
6fc6879b
JM
418{
419 struct wpa_ie_data ie;
420 int proto_match = 0;
421 const u8 *rsn_ie, *wpa_ie;
351f09a2 422 int ret;
43882f1e 423 int wep_ok;
6fc6879b 424
a6099152 425 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
351f09a2
JM
426 if (ret >= 0)
427 return ret;
ad08c363 428
43882f1e
JM
429 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
430 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
431 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
432 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
433 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
434
620c7837 435 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
6fc6879b
JM
436 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
437 proto_match++;
438
439 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
f049052b
BG
440 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
441 "failed");
6fc6879b
JM
442 break;
443 }
43882f1e
JM
444
445 if (wep_ok &&
446 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
447 {
f049052b
BG
448 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
449 "in RSN IE");
43882f1e
JM
450 return 1;
451 }
452
6fc6879b 453 if (!(ie.proto & ssid->proto)) {
f049052b
BG
454 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
455 "mismatch");
6fc6879b
JM
456 break;
457 }
458
459 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
f049052b
BG
460 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
461 "cipher mismatch");
6fc6879b
JM
462 break;
463 }
464
465 if (!(ie.group_cipher & ssid->group_cipher)) {
f049052b
BG
466 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
467 "cipher mismatch");
6fc6879b
JM
468 break;
469 }
470
471 if (!(ie.key_mgmt & ssid->key_mgmt)) {
f049052b
BG
472 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
473 "mismatch");
6fc6879b
JM
474 break;
475 }
476
477#ifdef CONFIG_IEEE80211W
0b60b0aa 478 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
62d49803
JM
479 (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ?
480 wpa_s->conf->pmf : ssid->ieee80211w) ==
481 MGMT_FRAME_PROTECTION_REQUIRED) {
f049052b
BG
482 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
483 "frame protection");
6fc6879b
JM
484 break;
485 }
486#endif /* CONFIG_IEEE80211W */
487
f049052b 488 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
6fc6879b
JM
489 return 1;
490 }
491
620c7837 492 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
6fc6879b
JM
493 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
494 proto_match++;
495
496 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
f049052b
BG
497 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
498 "failed");
6fc6879b
JM
499 break;
500 }
43882f1e
JM
501
502 if (wep_ok &&
503 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
504 {
f049052b
BG
505 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
506 "in WPA IE");
43882f1e
JM
507 return 1;
508 }
509
6fc6879b 510 if (!(ie.proto & ssid->proto)) {
f049052b
BG
511 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
512 "mismatch");
6fc6879b
JM
513 break;
514 }
515
516 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
f049052b
BG
517 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
518 "cipher mismatch");
6fc6879b
JM
519 break;
520 }
521
522 if (!(ie.group_cipher & ssid->group_cipher)) {
f049052b
BG
523 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
524 "cipher mismatch");
6fc6879b
JM
525 break;
526 }
527
528 if (!(ie.key_mgmt & ssid->key_mgmt)) {
f049052b
BG
529 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
530 "mismatch");
6fc6879b
JM
531 break;
532 }
533
f049052b 534 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
6fc6879b
JM
535 return 1;
536 }
537
a3f7e518
JM
538 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
539 !rsn_ie) {
540 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
541 return 1;
542 }
543
cc5e390d 544 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
df83fb7d 545 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
f049052b 546 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
cc5e390d
JM
547 return 0;
548 }
6fc6879b 549
df0f01d9
JM
550 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
551 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
552 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN");
553 return 1;
554 }
555
c2f1fe41
JM
556 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
557 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
558 return 1;
559 }
560
561 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
562 "WPA/WPA2");
563
564 return 0;
6fc6879b
JM
565}
566
567
b766a9a2
JM
568static int freq_allowed(int *freqs, int freq)
569{
570 int i;
571
572 if (freqs == NULL)
573 return 1;
574
575 for (i = 0; freqs[i]; i++)
576 if (freqs[i] == freq)
577 return 1;
578 return 0;
579}
580
581
620c7837 582static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
e1e8cae3
CL
583{
584 const struct hostapd_hw_modes *mode = NULL, *modes;
585 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
586 const u8 *rate_ie;
587 int i, j, k;
588
a6d94e1b
JM
589 if (bss->freq == 0)
590 return 1; /* Cannot do matching without knowing band */
591
e1e8cae3
CL
592 modes = wpa_s->hw.modes;
593 if (modes == NULL) {
594 /*
595 * The driver does not provide any additional information
596 * about the utilized hardware, so allow the connection attempt
597 * to continue.
598 */
599 return 1;
600 }
601
602 for (i = 0; i < wpa_s->hw.num_modes; i++) {
603 for (j = 0; j < modes[i].num_channels; j++) {
604 int freq = modes[i].channels[j].freq;
605 if (freq == bss->freq) {
606 if (mode &&
607 mode->mode == HOSTAPD_MODE_IEEE80211G)
608 break; /* do not allow 802.11b replace
609 * 802.11g */
610 mode = &modes[i];
611 break;
612 }
613 }
614 }
615
616 if (mode == NULL)
617 return 0;
618
619 for (i = 0; i < (int) sizeof(scan_ie); i++) {
620c7837 620 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
e1e8cae3
CL
621 if (rate_ie == NULL)
622 continue;
623
624 for (j = 2; j < rate_ie[1] + 2; j++) {
625 int flagged = !!(rate_ie[j] & 0x80);
626 int r = (rate_ie[j] & 0x7f) * 5;
627
628 /*
629 * IEEE Std 802.11n-2009 7.3.2.2:
630 * The new BSS Membership selector value is encoded
631 * like a legacy basic rate, but it is not a rate and
632 * only indicates if the BSS members are required to
633 * support the mandatory features of Clause 20 [HT PHY]
634 * in order to join the BSS.
635 */
636 if (flagged && ((rate_ie[j] & 0x7f) ==
637 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
638 if (!ht_supported(mode)) {
639 wpa_dbg(wpa_s, MSG_DEBUG,
640 " hardware does not support "
641 "HT PHY");
642 return 0;
643 }
644 continue;
645 }
646
c8ebeda4
MK
647 /* There's also a VHT selector for 802.11ac */
648 if (flagged && ((rate_ie[j] & 0x7f) ==
649 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
650 if (!vht_supported(mode)) {
651 wpa_dbg(wpa_s, MSG_DEBUG,
652 " hardware does not support "
653 "VHT PHY");
654 return 0;
655 }
656 continue;
657 }
658
e1e8cae3
CL
659 if (!flagged)
660 continue;
661
662 /* check for legacy basic rates */
663 for (k = 0; k < mode->num_rates; k++) {
664 if (mode->rates[k] == r)
665 break;
666 }
667 if (k == mode->num_rates) {
668 /*
669 * IEEE Std 802.11-2007 7.3.2.2 demands that in
670 * order to join a BSS all required rates
671 * have to be supported by the hardware.
672 */
673 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does "
674 "not support required rate %d.%d Mbps",
675 r / 10, r % 10);
676 return 0;
677 }
678 }
679 }
680
681 return 1;
682}
683
684
ff3ad3c5
VK
685/*
686 * Test whether BSS is in an ESS.
687 * This is done differently in DMG (60 GHz) and non-DMG bands
688 */
689static int bss_is_ess(struct wpa_bss *bss)
690{
691 if (bss_is_dmg(bss)) {
692 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
693 IEEE80211_CAP_DMG_AP;
694 }
695
696 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
697 IEEE80211_CAP_ESS);
698}
699
700
b83e4554
ST
701static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
702{
703 size_t i;
704
705 for (i = 0; i < num; i++) {
706 const u8 *a = list + (i * ETH_ALEN);
707
708 if (os_memcmp(a, addr, ETH_ALEN) == 0)
709 return 1;
710 }
711 return 0;
712}
713
714
d8d940b7 715static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
620c7837 716 int i, struct wpa_bss *bss,
3d910ef4
JM
717 struct wpa_ssid *group,
718 int only_first_ssid)
6fc6879b 719{
620c7837 720 u8 wpa_ie_len, rsn_ie_len;
d8d940b7 721 int wpa;
6fc6879b
JM
722 struct wpa_blacklist *e;
723 const u8 *ie;
d8d940b7 724 struct wpa_ssid *ssid;
df0f01d9 725 int osen;
6fc6879b 726
620c7837 727 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
d8d940b7 728 wpa_ie_len = ie ? ie[1] : 0;
6fc6879b 729
620c7837 730 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
d8d940b7 731 rsn_ie_len = ie ? ie[1] : 0;
6fc6879b 732
df0f01d9
JM
733 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
734 osen = ie != NULL;
735
f049052b 736 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
df0f01d9 737 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s%s%s",
620c7837 738 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
f049052b 739 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
b16696ff
JM
740 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "",
741 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
742 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ?
df0f01d9
JM
743 " p2p" : "",
744 osen ? " osen=1" : "");
9cf32261 745
d8d940b7 746 e = wpa_blacklist_get(wpa_s, bss->bssid);
5471c343
JM
747 if (e) {
748 int limit = 1;
349493bd 749 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
5471c343
JM
750 /*
751 * When only a single network is enabled, we can
752 * trigger blacklisting on the first failure. This
753 * should not be done with multiple enabled networks to
754 * avoid getting forced to move into a worse ESS on
755 * single error if there are no other BSSes of the
756 * current ESS.
757 */
758 limit = 0;
759 }
760 if (e->count > limit) {
f049052b
BG
761 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
762 "(count=%d limit=%d)", e->count, limit);
c2197bc9 763 return NULL;
5471c343 764 }
d8d940b7 765 }
6fc6879b 766
620c7837 767 if (bss->ssid_len == 0) {
f049052b 768 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
c2197bc9 769 return NULL;
d8d940b7 770 }
e81634cd 771
6407f413
JM
772 if (disallowed_bssid(wpa_s, bss->bssid)) {
773 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
774 return NULL;
775 }
776
777 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
778 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
779 return NULL;
780 }
781
d8d940b7 782 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
6fc6879b 783
3d910ef4 784 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
d8d940b7 785 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
00e5e3d5 786 int res;
ad08c363 787
349493bd 788 if (wpas_network_disabled(wpa_s, ssid)) {
f049052b 789 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
0c703df3 790 continue;
d8d940b7 791 }
9cf32261 792
00e5e3d5
JM
793 res = wpas_temp_disabled(wpa_s, ssid);
794 if (res > 0) {
795 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
796 "temporarily for %d second(s)", res);
797 continue;
798 }
799
ad08c363 800#ifdef CONFIG_WPS
f648bc7d 801 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
f049052b
BG
802 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
803 "(WPS)");
f648bc7d
JM
804 continue;
805 }
806
d8d940b7
JM
807 if (wpa && ssid->ssid_len == 0 &&
808 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
809 check_ssid = 0;
810
811 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
812 /* Only allow wildcard SSID match if an AP
813 * advertises active WPS operation that matches
814 * with our mode. */
815 check_ssid = 1;
ad08c363 816 if (ssid->ssid_len == 0 &&
a6099152 817 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
ad08c363 818 check_ssid = 0;
d8d940b7 819 }
ad08c363
JM
820#endif /* CONFIG_WPS */
821
7d232e23
ZC
822 if (ssid->bssid_set && ssid->ssid_len == 0 &&
823 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
824 check_ssid = 0;
825
d8d940b7 826 if (check_ssid &&
620c7837
JM
827 (bss->ssid_len != ssid->ssid_len ||
828 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
f049052b 829 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
0c703df3 830 continue;
6fc6879b 831 }
6fc6879b 832
d8d940b7
JM
833 if (ssid->bssid_set &&
834 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
f049052b 835 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
0c703df3 836 continue;
d8d940b7 837 }
6fc6879b 838
b83e4554
ST
839 /* check blacklist */
840 if (ssid->num_bssid_blacklist &&
841 addr_in_list(bss->bssid, ssid->bssid_blacklist,
842 ssid->num_bssid_blacklist)) {
843 wpa_dbg(wpa_s, MSG_DEBUG,
844 " skip - BSSID blacklisted");
845 continue;
846 }
847
848 /* if there is a whitelist, only accept those APs */
849 if (ssid->num_bssid_whitelist &&
850 !addr_in_list(bss->bssid, ssid->bssid_whitelist,
851 ssid->num_bssid_whitelist)) {
852 wpa_dbg(wpa_s, MSG_DEBUG,
853 " skip - BSSID not in whitelist");
854 continue;
855 }
856
cc5e390d 857 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
0c703df3 858 continue;
9cf32261 859
df0f01d9 860 if (!osen && !wpa &&
d8d940b7
JM
861 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
862 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
863 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
f049052b
BG
864 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
865 "not allowed");
0c703df3 866 continue;
6fc6879b 867 }
9cf32261 868
86bd1410
JM
869 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
870 has_wep_key(ssid)) {
871 wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block");
872 continue;
873 }
874
df0f01d9
JM
875 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) {
876 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-OSEN network "
877 "not allowed");
878 continue;
879 }
880
29fbc522 881 if (!wpa_supplicant_match_privacy(bss, ssid)) {
f049052b
BG
882 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
883 "mismatch");
0c703df3 884 continue;
e81634cd
JM
885 }
886
ff3ad3c5
VK
887 if (!bss_is_ess(bss)) {
888 wpa_dbg(wpa_s, MSG_DEBUG, " skip - not ESS network");
0c703df3 889 continue;
d8d940b7 890 }
b766a9a2 891
d8d940b7 892 if (!freq_allowed(ssid->freq_list, bss->freq)) {
f049052b
BG
893 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
894 "allowed");
0c703df3 895 continue;
6fc6879b 896 }
d8d940b7 897
e1e8cae3
CL
898 if (!rate_match(wpa_s, bss)) {
899 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
900 "not match");
901 continue;
902 }
903
73e49269 904#ifdef CONFIG_P2P
b72e14e5
JM
905 if (ssid->p2p_group &&
906 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
907 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
908 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
909 continue;
910 }
911
9ec87666
JM
912 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
913 struct wpabuf *p2p_ie;
914 u8 dev_addr[ETH_ALEN];
915
916 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
917 if (ie == NULL) {
918 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element");
919 continue;
920 }
921 p2p_ie = wpa_bss_get_vendor_ie_multi(
922 bss, P2P_IE_VENDOR_TYPE);
923 if (p2p_ie == NULL) {
924 wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element");
925 continue;
926 }
927
928 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
929 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
930 ETH_ALEN) != 0) {
931 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element");
932 wpabuf_free(p2p_ie);
933 continue;
934 }
935 wpabuf_free(p2p_ie);
936 }
937
73e49269
JM
938 /*
939 * TODO: skip the AP if its P2P IE has Group Formation
940 * bit set in the P2P Group Capability Bitmap and we
941 * are not in Group Formation with that device.
942 */
943#endif /* CONFIG_P2P */
944
d8d940b7
JM
945 /* Matching configuration found */
946 return ssid;
6fc6879b
JM
947 }
948
d8d940b7 949 /* No matching configuration found */
c2197bc9 950 return NULL;
9cf32261
JM
951}
952
953
6fa81a3b 954static struct wpa_bss *
a1fd2ce5 955wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
a1fd2ce5 956 struct wpa_ssid *group,
3d910ef4
JM
957 struct wpa_ssid **selected_ssid,
958 int only_first_ssid)
9cf32261 959{
620c7837 960 unsigned int i;
9cf32261 961
3d910ef4
JM
962 if (only_first_ssid)
963 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
964 group->id);
965 else
966 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
967 group->priority);
9cf32261 968
620c7837
JM
969 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
970 struct wpa_bss *bss = wpa_s->last_scan_res[i];
3d910ef4
JM
971 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
972 only_first_ssid);
d8d940b7
JM
973 if (!*selected_ssid)
974 continue;
f049052b
BG
975 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
976 " ssid='%s'",
620c7837
JM
977 MAC2STR(bss->bssid),
978 wpa_ssid_txt(bss->ssid, bss->ssid_len));
979 return bss;
d8d940b7
JM
980 }
981
982 return NULL;
6fc6879b
JM
983}
984
985
97236cee
MH
986struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
987 struct wpa_ssid **selected_ssid)
6fc6879b 988{
6fa81a3b 989 struct wpa_bss *selected = NULL;
09b9df4e 990 int prio;
7c373ac2 991 struct wpa_ssid *next_ssid = NULL;
09b9df4e 992
620c7837
JM
993 if (wpa_s->last_scan_res == NULL ||
994 wpa_s->last_scan_res_used == 0)
995 return NULL; /* no scan results from last update */
996
7c373ac2
JM
997 if (wpa_s->next_ssid) {
998 struct wpa_ssid *ssid;
3d910ef4 999
7c373ac2
JM
1000 /* check that next_ssid is still valid */
1001 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1002 if (ssid == wpa_s->next_ssid)
1003 break;
1004 }
1005 next_ssid = ssid;
1006 wpa_s->next_ssid = NULL;
1007 }
3d910ef4 1008
7c373ac2
JM
1009 while (selected == NULL) {
1010 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1011 if (next_ssid && next_ssid->priority ==
1012 wpa_s->conf->pssid[prio]->priority) {
3d910ef4 1013 selected = wpa_supplicant_select_bss(
7c373ac2 1014 wpa_s, next_ssid, selected_ssid, 1);
3d910ef4
JM
1015 if (selected)
1016 break;
1017 }
09b9df4e 1018 selected = wpa_supplicant_select_bss(
620c7837 1019 wpa_s, wpa_s->conf->pssid[prio],
3d910ef4 1020 selected_ssid, 0);
09b9df4e
JM
1021 if (selected)
1022 break;
1023 }
1024
8945cc45
BM
1025 if (selected == NULL && wpa_s->blacklist &&
1026 !wpa_s->countermeasures) {
f049052b
BG
1027 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1028 "blacklist and try again");
09b9df4e
JM
1029 wpa_blacklist_clear(wpa_s);
1030 wpa_s->blacklist_cleared++;
1031 } else if (selected == NULL)
1032 break;
1033 }
1034
1035 return selected;
1036}
1037
1038
1039static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
977b1174 1040 int timeout_sec, int timeout_usec)
09b9df4e 1041{
349493bd 1042 if (!wpa_supplicant_enabled_networks(wpa_s)) {
4f34d51a
SL
1043 /*
1044 * No networks are enabled; short-circuit request so
1045 * we don't wait timeout seconds before transitioning
1046 * to INACTIVE state.
1047 */
ac06fb12
JM
1048 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1049 "since there are no enabled networks");
4f34d51a
SL
1050 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1051 return;
09b9df4e 1052 }
5cc70322
JM
1053
1054 wpa_s->scan_for_connection = 1;
977b1174 1055 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
09b9df4e
JM
1056}
1057
1058
5cbd88d9
JJ
1059int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1060 struct wpa_bss *selected,
1061 struct wpa_ssid *ssid)
09b9df4e
JM
1062{
1063 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1064 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1065 "PBC session overlap");
b73bf0a7 1066#ifdef CONFIG_P2P
ace0fbdb
AS
1067 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1068 wpa_s->p2p_in_provisioning) {
1069 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1070 wpa_s, NULL);
5cbd88d9 1071 return -1;
ace0fbdb 1072 }
b73bf0a7 1073#endif /* CONFIG_P2P */
199716ad
BG
1074
1075#ifdef CONFIG_WPS
7736f18b 1076 wpas_wps_cancel(wpa_s);
199716ad 1077#endif /* CONFIG_WPS */
5cbd88d9 1078 return -1;
09b9df4e
JM
1079 }
1080
b0680017
JM
1081 wpa_msg(wpa_s, MSG_DEBUG,
1082 "Considering connect request: reassociate: %d selected: "
1083 MACSTR " bssid: " MACSTR " pending: " MACSTR
1084 " wpa_state: %s ssid=%p current_ssid=%p",
1085 wpa_s->reassociate, MAC2STR(selected->bssid),
1086 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1087 wpa_supplicant_state_txt(wpa_s->wpa_state),
1088 ssid, wpa_s->current_ssid);
1089
09b9df4e
JM
1090 /*
1091 * Do not trigger new association unless the BSSID has changed or if
1092 * reassociation is requested. If we are in process of associating with
1093 * the selected BSSID, do not trigger new attempt.
1094 */
1095 if (wpa_s->reassociate ||
1096 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
e29853bb
BG
1097 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1098 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
b0680017
JM
1099 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1100 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1101 0) ||
1102 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1103 ssid != wpa_s->current_ssid)))) {
09b9df4e 1104 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
977b1174 1105 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
5cbd88d9 1106 return 0;
09b9df4e 1107 }
b0680017
JM
1108 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1109 MAC2STR(selected->bssid));
09b9df4e
JM
1110 wpa_supplicant_associate(wpa_s, selected, ssid);
1111 } else {
b0680017
JM
1112 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1113 "connect with the selected AP");
09b9df4e 1114 }
5cbd88d9
JJ
1115
1116 return 0;
09b9df4e
JM
1117}
1118
1119
b55aaa5f
JM
1120static struct wpa_ssid *
1121wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1122{
1123 int prio;
1124 struct wpa_ssid *ssid;
1125
1126 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1127 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1128 {
349493bd 1129 if (wpas_network_disabled(wpa_s, ssid))
b55aaa5f
JM
1130 continue;
1131 if (ssid->mode == IEEE80211_MODE_IBSS ||
476e6bb6
TP
1132 ssid->mode == IEEE80211_MODE_AP ||
1133 ssid->mode == IEEE80211_MODE_MESH)
b55aaa5f
JM
1134 return ssid;
1135 }
1136 }
1137 return NULL;
1138}
1139
1140
a1fd2ce5
JM
1141/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1142 * on BSS added and BSS changed events */
6ae93185 1143static void wpa_supplicant_rsn_preauth_scan_results(
6d28fb96 1144 struct wpa_supplicant *wpa_s)
6ae93185 1145{
6d28fb96 1146 struct wpa_bss *bss;
6ae93185
JM
1147
1148 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1149 return;
1150
6d28fb96 1151 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
6ae93185 1152 const u8 *ssid, *rsn;
6ae93185 1153
6d28fb96 1154 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
6ae93185
JM
1155 if (ssid == NULL)
1156 continue;
1157
6d28fb96 1158 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
6ae93185
JM
1159 if (rsn == NULL)
1160 continue;
1161
6d28fb96 1162 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
6ae93185
JM
1163 }
1164
1165}
1166
1167
48563d86
JM
1168static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1169 struct wpa_bss *selected,
20ed5e40 1170 struct wpa_ssid *ssid)
48563d86 1171{
20ed5e40 1172 struct wpa_bss *current_bss = NULL;
48563d86
JM
1173 int min_diff;
1174
1175 if (wpa_s->reassociate)
1176 return 1; /* explicit request to reassociate */
1177 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1178 return 1; /* we are not associated; continue */
1179 if (wpa_s->current_ssid == NULL)
1180 return 1; /* unknown current SSID */
1181 if (wpa_s->current_ssid != ssid)
1182 return 1; /* different network block */
1183
22628eca
JM
1184 if (wpas_driver_bss_selection(wpa_s))
1185 return 0; /* Driver-based roaming */
1186
20ed5e40
JM
1187 if (wpa_s->current_ssid->ssid)
1188 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1189 wpa_s->current_ssid->ssid,
1190 wpa_s->current_ssid->ssid_len);
1191 if (!current_bss)
1192 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
48563d86
JM
1193
1194 if (!current_bss)
1195 return 1; /* current BSS not seen in scan results */
1196
20ed5e40
JM
1197 if (current_bss == selected)
1198 return 0;
1199
1200 if (selected->last_update_idx > current_bss->last_update_idx)
1201 return 1; /* current BSS not seen in the last scan */
1202
e9af53ad 1203#ifndef CONFIG_NO_ROAMING
f049052b
BG
1204 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1205 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
1206 MAC2STR(current_bss->bssid), current_bss->level);
1207 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
1208 MAC2STR(selected->bssid), selected->level);
48563d86 1209
ac26ebd8
JM
1210 if (wpa_s->current_ssid->bssid_set &&
1211 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1212 0) {
f049052b
BG
1213 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1214 "has preferred BSSID");
ac26ebd8
JM
1215 return 1;
1216 }
1217
bff954e9
RS
1218 if (current_bss->level < 0 && current_bss->level > selected->level) {
1219 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1220 "signal level");
1221 return 0;
1222 }
1223
48563d86
JM
1224 min_diff = 2;
1225 if (current_bss->level < 0) {
1226 if (current_bss->level < -85)
1227 min_diff = 1;
1228 else if (current_bss->level < -80)
1229 min_diff = 2;
1230 else if (current_bss->level < -75)
1231 min_diff = 3;
1232 else if (current_bss->level < -70)
1233 min_diff = 4;
1234 else
1235 min_diff = 5;
1236 }
1237 if (abs(current_bss->level - selected->level) < min_diff) {
f049052b
BG
1238 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1239 "in signal level");
48563d86
JM
1240 return 0;
1241 }
1242
1243 return 1;
e9af53ad
DS
1244#else /* CONFIG_NO_ROAMING */
1245 return 0;
1246#endif /* CONFIG_NO_ROAMING */
48563d86
JM
1247}
1248
cd2f4ddf 1249
0dd54313 1250/* Return != 0 if no scan results could be fetched or if scan results should not
10ac7ddf 1251 * be shared with other virtual interfaces. */
e1504976 1252static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
cfd31b50
JM
1253 union wpa_event_data *data,
1254 int own_request)
09b9df4e 1255{
d12a51b5
JM
1256 struct wpa_scan_results *scan_res = NULL;
1257 int ret = 0;
5bc0cdb7 1258 int ap = 0;
7b1aa4fe
JM
1259#ifndef CONFIG_NO_RANDOM_POOL
1260 size_t i, num;
1261#endif /* CONFIG_NO_RANDOM_POOL */
5bc0cdb7
JM
1262
1263#ifdef CONFIG_AP
1264 if (wpa_s->ap_iface)
1265 ap = 1;
1266#endif /* CONFIG_AP */
6fc6879b 1267
cb8564b1
DW
1268 wpa_supplicant_notify_scanning(wpa_s, 0);
1269
a1fd2ce5
JM
1270 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1271 data ? &data->scan_info :
1272 NULL, 1);
1273 if (scan_res == NULL) {
66fe0f70
DS
1274 if (wpa_s->conf->ap_scan == 2 || ap ||
1275 wpa_s->scan_res_handler == scan_only_handler)
e1504976 1276 return -1;
cfd31b50
JM
1277 if (!own_request)
1278 return -1;
f049052b
BG
1279 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1280 "scanning again");
977b1174 1281 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
d12a51b5
JM
1282 ret = -1;
1283 goto scan_work_done;
6fc6879b
JM
1284 }
1285
bbb921da 1286#ifndef CONFIG_NO_RANDOM_POOL
bbb921da
JM
1287 num = scan_res->num;
1288 if (num > 10)
1289 num = 10;
1290 for (i = 0; i < num; i++) {
1291 u8 buf[5];
1292 struct wpa_scan_res *res = scan_res->res[i];
1293 buf[0] = res->bssid[5];
1294 buf[1] = res->qual & 0xff;
1295 buf[2] = res->noise & 0xff;
1296 buf[3] = res->level & 0xff;
1297 buf[4] = res->tsf & 0xff;
1298 random_add_randomness(buf, sizeof(buf));
1299 }
1300#endif /* CONFIG_NO_RANDOM_POOL */
1301
06f9acce
JM
1302 if (own_request && wpa_s->scan_res_handler &&
1303 (wpa_s->own_scan_running || !wpa_s->external_scan_running)) {
860fddbb
JB
1304 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1305 struct wpa_scan_results *scan_res);
1306
1307 scan_res_handler = wpa_s->scan_res_handler;
64e58f51 1308 wpa_s->scan_res_handler = NULL;
860fddbb 1309 scan_res_handler(wpa_s, scan_res);
d12a51b5
JM
1310 ret = -2;
1311 goto scan_work_done;
64e58f51
JM
1312 }
1313
5bc0cdb7 1314 if (ap) {
f049052b 1315 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
c202f19c
JB
1316#ifdef CONFIG_AP
1317 if (wpa_s->ap_iface->scan_cb)
1318 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1319#endif /* CONFIG_AP */
d12a51b5 1320 goto scan_work_done;
5bc0cdb7
JM
1321 }
1322
a5f40eff
JM
1323 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1324 wpa_s->own_scan_running, wpa_s->external_scan_running);
d81c73be
JM
1325 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1326 wpa_s->manual_scan_use_id && wpa_s->own_scan_running) {
1327 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1328 wpa_s->manual_scan_id);
1329 wpa_s->manual_scan_use_id = 0;
1330 } else {
1331 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1332 }
24f76940 1333 wpas_notify_scan_results(wpa_s);
6fc6879b 1334
8bac466b
JM
1335 wpas_notify_scan_done(wpa_s, 1);
1336
015af91f
JM
1337 if (!wpa_s->own_scan_running && wpa_s->external_scan_running) {
1338 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1339 wpa_scan_results_free(scan_res);
1340 return 0;
1341 }
1342
75d65857 1343 if (wnm_scan_process(wpa_s, 1) > 0)
d0b9ab69
JM
1344 goto scan_work_done;
1345
d12a51b5
JM
1346 if (sme_proc_obss_scan(wpa_s) > 0)
1347 goto scan_work_done;
c3701c66 1348
d12a51b5
JM
1349 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1350 goto scan_work_done;
6fc6879b 1351
d12a51b5
JM
1352 if (autoscan_notify_scan(wpa_s, scan_res))
1353 goto scan_work_done;
7c865c68 1354
3180d7a2
SO
1355 if (wpa_s->disconnected) {
1356 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
d12a51b5 1357 goto scan_work_done;
3180d7a2
SO
1358 }
1359
22628eca 1360 if (!wpas_driver_bss_selection(wpa_s) &&
d12a51b5
JM
1361 bgscan_notify_scan(wpa_s, scan_res) == 1)
1362 goto scan_work_done;
a1fd2ce5 1363
f9f0526b
JM
1364 wpas_wps_update_ap_info(wpa_s, scan_res);
1365
20ed5e40
JM
1366 wpa_scan_results_free(scan_res);
1367
d12a51b5
JM
1368 if (wpa_s->scan_work) {
1369 struct wpa_radio_work *work = wpa_s->scan_work;
1370 wpa_s->scan_work = NULL;
1371 radio_work_done(work);
1372 }
1373
cc4952ad 1374 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
d12a51b5
JM
1375
1376scan_work_done:
1377 wpa_scan_results_free(scan_res);
1378 if (wpa_s->scan_work) {
1379 struct wpa_radio_work *work = wpa_s->scan_work;
1380 wpa_s->scan_work = NULL;
1381 radio_work_done(work);
1382 }
1383 return ret;
a594e2a9
JM
1384}
1385
1386
06b7f58d 1387static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
cc4952ad 1388 int new_scan, int own_request)
a594e2a9
JM
1389{
1390 struct wpa_bss *selected;
1391 struct wpa_ssid *ssid = NULL;
1392
620c7837
JM
1393 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1394
6fc6879b 1395 if (selected) {
48563d86 1396 int skip;
20ed5e40 1397 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1bbff09e 1398 if (skip) {
06b7f58d
JM
1399 if (new_scan)
1400 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
e1504976 1401 return 0;
1bbff09e 1402 }
5cbd88d9
JJ
1403
1404 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1405 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1406 return -1;
1407 }
06b7f58d
JM
1408 if (new_scan)
1409 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
0dd54313
JM
1410 /*
1411 * Do not notify other virtual radios of scan results since we do not
1412 * want them to start other associations at the same time.
1413 */
1414 return 1;
6fc6879b 1415 } else {
a3335ef5
TP
1416#ifdef CONFIG_MESH
1417 if (wpa_s->ifmsh) {
1418 wpa_msg(wpa_s, MSG_INFO,
1419 "Avoiding join because we already joined a mesh group");
1420 return 0;
1421 }
1422#endif /* CONFIG_MESH */
f049052b 1423 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
b55aaa5f
JM
1424 ssid = wpa_supplicant_pick_new_network(wpa_s);
1425 if (ssid) {
f049052b 1426 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
b55aaa5f 1427 wpa_supplicant_associate(wpa_s, NULL, ssid);
06b7f58d
JM
1428 if (new_scan)
1429 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
cc4952ad
JJ
1430 } else if (own_request) {
1431 /*
1432 * No SSID found. If SCAN results are as a result of
1433 * own scan request and not due to a scan request on
1434 * another shared interface, try another scan.
1435 */
67b9bd08 1436 int timeout_sec = wpa_s->scan_interval;
977b1174 1437 int timeout_usec = 0;
0817de90 1438#ifdef CONFIG_P2P
aa9bb764
JM
1439 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1)
1440 return 0;
1441
6fc48481 1442 if (wpa_s->p2p_in_provisioning ||
41d5ce9e
RR
1443 wpa_s->show_group_started ||
1444 wpa_s->p2p_in_invitation) {
0817de90
JM
1445 /*
1446 * Use shorter wait during P2P Provisioning
6fc48481
RR
1447 * state and during P2P join-a-group operation
1448 * to speed up group formation.
0817de90
JM
1449 */
1450 timeout_sec = 0;
1451 timeout_usec = 250000;
a4cba8f1
LC
1452 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1453 timeout_usec);
1454 return 0;
0817de90
JM
1455 }
1456#endif /* CONFIG_P2P */
4d5bda5f
JM
1457#ifdef CONFIG_INTERWORKING
1458 if (wpa_s->conf->auto_interworking &&
1459 wpa_s->conf->interworking &&
1460 wpa_s->conf->cred) {
1461 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1462 "start ANQP fetch since no matching "
1463 "networks found");
1464 wpa_s->network_select = 1;
1465 wpa_s->auto_network_select = 1;
1466 interworking_start_fetch_anqp(wpa_s);
0dd54313 1467 return 1;
4d5bda5f
JM
1468 }
1469#endif /* CONFIG_INTERWORKING */
662b40b1 1470#ifdef CONFIG_WPS
538d6f4b 1471 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
662b40b1
JM
1472 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1473 timeout_sec = 0;
1474 timeout_usec = 500000;
1475 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1476 timeout_usec);
1477 return 0;
1478 }
1479#endif /* CONFIG_WPS */
a4cba8f1
LC
1480 if (wpa_supplicant_req_sched_scan(wpa_s))
1481 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1482 timeout_usec);
977b1174 1483 }
6fc6879b 1484 }
e1504976 1485 return 0;
6fc6879b 1486}
6859f1cb
BG
1487
1488
1489static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1490 union wpa_event_data *data)
1491{
6859f1cb
BG
1492 struct wpa_supplicant *ifs;
1493
cfd31b50 1494 if (_wpa_supplicant_event_scan_results(wpa_s, data, 1) != 0) {
e1504976
BG
1495 /*
1496 * If no scan results could be fetched, then no need to
1497 * notify those interfaces that did not actually request
0dd54313
JM
1498 * this scan. Similarly, if scan results started a new operation on this
1499 * interface, do not notify other interfaces to avoid concurrent
1500 * operations during a connection attempt.
e1504976
BG
1501 */
1502 return;
1503 }
6859f1cb
BG
1504
1505 /*
f88f19b4 1506 * Check other interfaces to see if they share the same radio. If
6859f1cb
BG
1507 * so, they get updated with this same scan info.
1508 */
f88f19b4
JM
1509 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1510 radio_list) {
1511 if (ifs != wpa_s) {
6859f1cb
BG
1512 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1513 "sibling", ifs->ifname);
cfd31b50 1514 _wpa_supplicant_event_scan_results(ifs, data, 0);
6859f1cb
BG
1515 }
1516 }
1517}
1518
6fc6879b
JM
1519#endif /* CONFIG_NO_SCAN_PROCESSING */
1520
1521
cecdddc1
PS
1522int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1523{
1524#ifdef CONFIG_NO_SCAN_PROCESSING
1525 return -1;
1526#else /* CONFIG_NO_SCAN_PROCESSING */
a12d3454 1527 struct os_reltime now;
cecdddc1
PS
1528
1529 if (wpa_s->last_scan_res_used <= 0)
1530 return -1;
1531
a12d3454
JB
1532 os_get_reltime(&now);
1533 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
cecdddc1
PS
1534 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1535 return -1;
1536 }
1537
cc4952ad 1538 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
cecdddc1
PS
1539#endif /* CONFIG_NO_SCAN_PROCESSING */
1540}
1541
b6668734
JM
1542#ifdef CONFIG_WNM
1543
1544static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1545{
1546 struct wpa_supplicant *wpa_s = eloop_ctx;
1547
1548 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1549 return;
1550
2ec535fd
JM
1551 if (!wpa_s->no_keep_alive) {
1552 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1553 MAC2STR(wpa_s->bssid));
1554 /* TODO: could skip this if normal data traffic has been sent */
1555 /* TODO: Consider using some more appropriate data frame for
1556 * this */
1557 if (wpa_s->l2)
1558 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1559 (u8 *) "", 0);
1560 }
b6668734 1561
597c7a8d 1562#ifdef CONFIG_SME
b6668734
JM
1563 if (wpa_s->sme.bss_max_idle_period) {
1564 unsigned int msec;
1565 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1566 if (msec > 100)
1567 msec -= 100;
1568 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1569 wnm_bss_keep_alive, wpa_s, NULL);
1570 }
597c7a8d 1571#endif /* CONFIG_SME */
b6668734
JM
1572}
1573
1574
1575static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1576 const u8 *ies, size_t ies_len)
1577{
1578 struct ieee802_11_elems elems;
1579
1580 if (ies == NULL)
1581 return;
1582
1583 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1584 return;
1585
1586#ifdef CONFIG_SME
1587 if (elems.bss_max_idle_period) {
1588 unsigned int msec;
1589 wpa_s->sme.bss_max_idle_period =
1590 WPA_GET_LE16(elems.bss_max_idle_period);
1591 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1592 "TU)%s", wpa_s->sme.bss_max_idle_period,
1593 (elems.bss_max_idle_period[2] & 0x01) ?
1594 " (protected keep-live required)" : "");
1595 if (wpa_s->sme.bss_max_idle_period == 0)
1596 wpa_s->sme.bss_max_idle_period = 1;
1597 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1598 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1599 /* msec times 1000 */
1600 msec = wpa_s->sme.bss_max_idle_period * 1024;
1601 if (msec > 100)
1602 msec -= 100;
1603 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1604 wnm_bss_keep_alive, wpa_s,
1605 NULL);
1606 }
1607 }
1608#endif /* CONFIG_SME */
1609}
1610
1611#endif /* CONFIG_WNM */
1612
1613
1614void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1615{
1616#ifdef CONFIG_WNM
1617 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1618#endif /* CONFIG_WNM */
1619}
1620
1621
56f5af48
JM
1622#ifdef CONFIG_INTERWORKING
1623
1624static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1625 size_t len)
1626{
1627 int res;
1628
1629 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1630 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1631 if (res) {
1632 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1633 }
1634
1635 return res;
1636}
1637
1638
1639static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1640 const u8 *ies, size_t ies_len)
1641{
1642 struct ieee802_11_elems elems;
1643
1644 if (ies == NULL)
1645 return;
1646
1647 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1648 return;
1649
1650 if (elems.qos_map_set) {
1651 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1652 elems.qos_map_set_len);
1653 }
1654}
1655
1656#endif /* CONFIG_INTERWORKING */
1657
1658
579ce771
JM
1659static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1660 union wpa_event_data *data)
6fc6879b
JM
1661{
1662 int l, len, found = 0, wpa_found, rsn_found;
c2a04078 1663 const u8 *p;
b6714ca1 1664#ifdef CONFIG_IEEE80211R
6a1ce395 1665 u8 bssid[ETH_ALEN];
b6714ca1 1666#endif /* CONFIG_IEEE80211R */
6fc6879b 1667
f049052b 1668 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
6fc6879b
JM
1669 if (data->assoc_info.req_ies)
1670 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1671 data->assoc_info.req_ies_len);
52c9e6f3 1672 if (data->assoc_info.resp_ies) {
6fc6879b
JM
1673 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1674 data->assoc_info.resp_ies_len);
52c9e6f3
JM
1675#ifdef CONFIG_TDLS
1676 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1677 data->assoc_info.resp_ies_len);
1678#endif /* CONFIG_TDLS */
b6668734
JM
1679#ifdef CONFIG_WNM
1680 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1681 data->assoc_info.resp_ies_len);
1682#endif /* CONFIG_WNM */
56f5af48
JM
1683#ifdef CONFIG_INTERWORKING
1684 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1685 data->assoc_info.resp_ies_len);
1686#endif /* CONFIG_INTERWORKING */
52c9e6f3 1687 }
6fc6879b
JM
1688 if (data->assoc_info.beacon_ies)
1689 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1690 data->assoc_info.beacon_ies,
1691 data->assoc_info.beacon_ies_len);
4832ecd7 1692 if (data->assoc_info.freq)
f049052b
BG
1693 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1694 data->assoc_info.freq);
6fc6879b
JM
1695
1696 p = data->assoc_info.req_ies;
1697 l = data->assoc_info.req_ies_len;
1698
1699 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1700 while (p && l >= 2) {
1701 len = p[1] + 2;
1702 if (len > l) {
1703 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1704 p, l);
1705 break;
1706 }
1707 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1708 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1709 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1710 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1711 break;
1712 found = 1;
1713 wpa_find_assoc_pmkid(wpa_s);
1714 break;
1715 }
1716 l -= len;
1717 p += len;
1718 }
1719 if (!found && data->assoc_info.req_ies)
1720 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1721
c2a04078 1722#ifdef CONFIG_IEEE80211R
62c72d72
JM
1723#ifdef CONFIG_SME
1724 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
62c72d72
JM
1725 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1726 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1727 data->assoc_info.resp_ies,
1728 data->assoc_info.resp_ies_len,
1729 bssid) < 0) {
f049052b
BG
1730 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1731 "Reassociation Response failed");
579ce771
JM
1732 wpa_supplicant_deauthenticate(
1733 wpa_s, WLAN_REASON_INVALID_IE);
1734 return -1;
62c72d72
JM
1735 }
1736 }
62c72d72 1737
c2a04078
JM
1738 p = data->assoc_info.resp_ies;
1739 l = data->assoc_info.resp_ies_len;
1740
54f489be 1741#ifdef CONFIG_WPS_STRICT
5dac11e0 1742 if (p && wpa_s->current_ssid &&
54f489be
JM
1743 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1744 struct wpabuf *wps;
1745 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1746 if (wps == NULL) {
f049052b
BG
1747 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1748 "include WPS IE in (Re)Association Response");
54f489be
JM
1749 return -1;
1750 }
1751
1752 if (wps_validate_assoc_resp(wps) < 0) {
1753 wpabuf_free(wps);
1754 wpa_supplicant_deauthenticate(
1755 wpa_s, WLAN_REASON_INVALID_IE);
1756 return -1;
1757 }
1758 wpabuf_free(wps);
1759 }
1760#endif /* CONFIG_WPS_STRICT */
1761
e7846b68 1762 /* Go through the IEs and make a copy of the MDIE, if present. */
c2a04078
JM
1763 while (p && l >= 2) {
1764 len = p[1] + 2;
1765 if (len > l) {
1766 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1767 p, l);
1768 break;
1769 }
e7846b68
JM
1770 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1771 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1772 wpa_s->sme.ft_used = 1;
1773 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1774 MOBILITY_DOMAIN_ID_LEN);
1775 break;
1776 }
c2a04078
JM
1777 l -= len;
1778 p += len;
1779 }
e7846b68 1780#endif /* CONFIG_SME */
c2a04078 1781
6a1ce395
DG
1782 /* Process FT when SME is in the driver */
1783 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
1784 wpa_ft_is_completed(wpa_s->wpa)) {
1785 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1786 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1787 data->assoc_info.resp_ies,
1788 data->assoc_info.resp_ies_len,
1789 bssid) < 0) {
1790 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1791 "Reassociation Response failed");
1792 wpa_supplicant_deauthenticate(
1793 wpa_s, WLAN_REASON_INVALID_IE);
1794 return -1;
1795 }
1796 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
1797 }
1798
e7846b68
JM
1799 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1800 data->assoc_info.resp_ies_len);
c2a04078
JM
1801#endif /* CONFIG_IEEE80211R */
1802
6fc6879b
JM
1803 /* WPA/RSN IE from Beacon/ProbeResp */
1804 p = data->assoc_info.beacon_ies;
1805 l = data->assoc_info.beacon_ies_len;
1806
1807 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1808 */
1809 wpa_found = rsn_found = 0;
1810 while (p && l >= 2) {
1811 len = p[1] + 2;
1812 if (len > l) {
1813 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1814 p, l);
1815 break;
1816 }
1817 if (!wpa_found &&
1818 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1819 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1820 wpa_found = 1;
1821 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1822 }
1823
1824 if (!rsn_found &&
1825 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1826 rsn_found = 1;
1827 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1828 }
1829
1830 l -= len;
1831 p += len;
1832 }
1833
1834 if (!wpa_found && data->assoc_info.beacon_ies)
1835 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1836 if (!rsn_found && data->assoc_info.beacon_ies)
1837 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1838 if (wpa_found || rsn_found)
1839 wpa_s->ap_ies_from_associnfo = 1;
4832ecd7 1840
117e812d
JM
1841 if (wpa_s->assoc_freq && data->assoc_info.freq &&
1842 wpa_s->assoc_freq != data->assoc_info.freq) {
1843 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1844 "%u to %u MHz",
1845 wpa_s->assoc_freq, data->assoc_info.freq);
1846 wpa_supplicant_update_scan_results(wpa_s);
1847 }
1848
4832ecd7 1849 wpa_s->assoc_freq = data->assoc_info.freq;
579ce771
JM
1850
1851 return 0;
6fc6879b
JM
1852}
1853
1854
ad9ee4d4
JM
1855static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
1856{
1857 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
1858
1859 if (!wpa_s->current_bss || !wpa_s->current_ssid)
1860 return -1;
1861
1862 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
1863 return 0;
1864
1865 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
1866 WPA_IE_VENDOR_TYPE);
1867 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
1868
1869 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1870 bss_wpa ? 2 + bss_wpa[1] : 0) ||
1871 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1872 bss_rsn ? 2 + bss_rsn[1] : 0))
1873 return -1;
1874
1875 return 0;
1876}
1877
1878
6fc6879b
JM
1879static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1880 union wpa_event_data *data)
1881{
1882 u8 bssid[ETH_ALEN];
1d041bec 1883 int ft_completed;
6fc6879b 1884
1d041bec
JM
1885#ifdef CONFIG_AP
1886 if (wpa_s->ap_iface) {
a01acc50
JM
1887 if (!data)
1888 return;
1d041bec
JM
1889 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1890 data->assoc_info.addr,
1891 data->assoc_info.req_ies,
39b08b5f
SP
1892 data->assoc_info.req_ies_len,
1893 data->assoc_info.reassoc);
1d041bec
JM
1894 return;
1895 }
1896#endif /* CONFIG_AP */
1897
1898 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
579ce771
JM
1899 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1900 return;
6fc6879b 1901
0a0c38f6
MH
1902 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
1903 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
07783eaa 1904 wpa_supplicant_deauthenticate(
0a0c38f6
MH
1905 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1906 return;
1907 }
1908
6fc6879b 1909 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
0a0c38f6 1910 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
f049052b 1911 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
6fc6879b 1912 MACSTR, MAC2STR(bssid));
bbb921da 1913 random_add_randomness(bssid, ETH_ALEN);
6fc6879b
JM
1914 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1915 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
e485286c 1916 wpas_notify_bssid_changed(wpa_s);
8bac466b 1917
6fc6879b
JM
1918 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1919 wpa_clear_keys(wpa_s, bssid);
1920 }
1921 if (wpa_supplicant_select_config(wpa_s) < 0) {
07783eaa 1922 wpa_supplicant_deauthenticate(
6fc6879b
JM
1923 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1924 return;
1925 }
cd2f4ddf
SM
1926
1927 if (wpa_s->conf->ap_scan == 1 &&
1928 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
1929 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0)
1930 wpa_msg(wpa_s, MSG_WARNING,
1931 "WPA/RSN IEs not updated");
1932 }
6fc6879b
JM
1933 }
1934
62fa124c
JM
1935#ifdef CONFIG_SME
1936 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1937 wpa_s->sme.prev_bssid_set = 1;
3302b7c2 1938 wpa_s->sme.last_unprot_disconnect.sec = 0;
62fa124c
JM
1939#endif /* CONFIG_SME */
1940
6fc6879b
JM
1941 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1942 if (wpa_s->current_ssid) {
1943 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1944 * initialized before association, but for other modes,
1945 * initialize PC/SC here, if the current configuration needs
1946 * smartcard or SIM/USIM. */
1947 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1948 }
1949 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
3f967fe0
JM
1950 if (wpa_s->l2)
1951 l2_packet_notify_auth_start(wpa_s->l2);
6fc6879b
JM
1952
1953 /*
1954 * Set portEnabled first to FALSE in order to get EAP state machine out
1955 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1956 * state machine may transit to AUTHENTICATING state based on obsolete
1957 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1958 * AUTHENTICATED without ever giving chance to EAP state machine to
1959 * reset the state.
1960 */
1961 if (!ft_completed) {
1962 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1963 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1964 }
56586197 1965 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
6fc6879b
JM
1966 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1967 /* 802.1X::portControl = Auto */
1968 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1969 wpa_s->eapol_received = 0;
1970 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
9c972abb
JM
1971 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1972 (wpa_s->current_ssid &&
1973 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
fb958ea7
JM
1974 if (wpa_s->current_ssid &&
1975 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
6ea1f413
JM
1976 (wpa_s->drv_flags &
1977 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
1978 /*
1979 * Set the key after having received joined-IBSS event
1980 * from the driver.
1981 */
1982 wpa_supplicant_set_wpa_none_key(wpa_s,
1983 wpa_s->current_ssid);
1984 }
6fc6879b
JM
1985 wpa_supplicant_cancel_auth_timeout(wpa_s);
1986 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1987 } else if (!ft_completed) {
1988 /* Timeout for receiving the first EAPOL packet */
1989 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1990 }
1991 wpa_supplicant_cancel_scan(wpa_s);
1992
c2a04078 1993 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
56586197 1994 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
6fc6879b
JM
1995 /*
1996 * We are done; the driver will take care of RSN 4-way
1997 * handshake.
1998 */
1999 wpa_supplicant_cancel_auth_timeout(wpa_s);
2000 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2001 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2002 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
98ea9431
JM
2003 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2004 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
2005 /*
2006 * The driver will take care of RSN 4-way handshake, so we need
2007 * to allow EAPOL supplicant to complete its work without
2008 * waiting for WPA supplicant.
2009 */
2010 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
16a83d29
JM
2011 } else if (ft_completed) {
2012 /*
2013 * FT protocol completed - make sure EAPOL state machine ends
2014 * up in authenticated.
2015 */
2016 wpa_supplicant_cancel_auth_timeout(wpa_s);
2017 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2018 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2019 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
6fc6879b 2020 }
1ff73338 2021
3ab35a66
JM
2022 wpa_s->last_eapol_matches_bssid = 0;
2023
1ff73338 2024 if (wpa_s->pending_eapol_rx) {
c2be937c
JB
2025 struct os_reltime now, age;
2026 os_get_reltime(&now);
2027 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1ff73338
JM
2028 if (age.sec == 0 && age.usec < 100000 &&
2029 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2030 0) {
f049052b
BG
2031 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2032 "frame that was received just before "
2033 "association notification");
1ff73338
JM
2034 wpa_supplicant_rx_eapol(
2035 wpa_s, wpa_s->pending_eapol_rx_src,
2036 wpabuf_head(wpa_s->pending_eapol_rx),
2037 wpabuf_len(wpa_s->pending_eapol_rx));
2038 }
2039 wpabuf_free(wpa_s->pending_eapol_rx);
2040 wpa_s->pending_eapol_rx = NULL;
2041 }
60b94c98 2042
0194fedb
JB
2043 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2044 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
66562e9c
JM
2045 wpa_s->current_ssid &&
2046 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
0194fedb
JB
2047 /* Set static WEP keys again */
2048 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2049 }
50b05780
JM
2050
2051#ifdef CONFIG_IBSS_RSN
2052 if (wpa_s->current_ssid &&
2053 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2054 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
78177a00
JM
2055 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2056 wpa_s->ibss_rsn == NULL) {
2057 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2058 if (!wpa_s->ibss_rsn) {
2059 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2060 wpa_supplicant_deauthenticate(
2061 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2062 return;
2063 }
2064
2065 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2066 }
50b05780 2067#endif /* CONFIG_IBSS_RSN */
f9f0526b
JM
2068
2069 wpas_wps_notify_assoc(wpa_s, bssid);
a0413b17
MB
2070
2071 if (data) {
2072 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2073 data->assoc_info.resp_ies_len,
2074 &data->assoc_info.wmm_params);
8c42b369
EP
2075
2076 if (wpa_s->reassoc_same_bss)
2077 wmm_ac_restore_tspecs(wpa_s);
a0413b17 2078 }
6fc6879b
JM
2079}
2080
2081
d00821e9
JM
2082static int disconnect_reason_recoverable(u16 reason_code)
2083{
2084 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2085 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2086 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2087}
2088
2089
0544b242 2090static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
3d9975d5
JM
2091 u16 reason_code,
2092 int locally_generated)
6fc6879b
JM
2093{
2094 const u8 *bssid;
0aadd568
JM
2095
2096 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2097 /*
2098 * At least Host AP driver and a Prism3 card seemed to be
2099 * generating streams of disconnected events when configuring
2100 * IBSS for WPA-None. Ignore them for now.
2101 */
2102 return;
2103 }
2104
2105 bssid = wpa_s->bssid;
2106 if (is_zero_ether_addr(bssid))
2107 bssid = wpa_s->pending_bssid;
2108
2109 if (!is_zero_ether_addr(bssid) ||
2110 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2111 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2112 " reason=%d%s",
2113 MAC2STR(bssid), reason_code,
2114 locally_generated ? " locally_generated=1" : "");
2115 }
2116}
2117
2118
c9a82218
JM
2119static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2120 int locally_generated)
2121{
2122 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2123 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2124 return 0; /* Not in 4-way handshake with PSK */
2125
2126 /*
2127 * It looks like connection was lost while trying to go through PSK
2128 * 4-way handshake. Filter out known disconnection cases that are caused
2129 * by something else than PSK mismatch to avoid confusing reports.
2130 */
2131
2132 if (locally_generated) {
2133 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2134 return 0;
2135 }
2136
2137 return 1;
2138}
2139
2140
0aadd568
JM
2141static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2142 u16 reason_code,
2143 int locally_generated)
2144{
2145 const u8 *bssid;
6d6f4bb8
JM
2146 int authenticating;
2147 u8 prev_pending_bssid[ETH_ALEN];
d00821e9
JM
2148 struct wpa_bss *fast_reconnect = NULL;
2149 struct wpa_ssid *fast_reconnect_ssid = NULL;
bcdf2096 2150 struct wpa_ssid *last_ssid;
6d6f4bb8
JM
2151
2152 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2153 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
6fc6879b
JM
2154
2155 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2156 /*
2157 * At least Host AP driver and a Prism3 card seemed to be
2158 * generating streams of disconnected events when configuring
2159 * IBSS for WPA-None. Ignore them for now.
2160 */
f049052b
BG
2161 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2162 "IBSS/WPA-None mode");
6fc6879b
JM
2163 return;
2164 }
2165
c9a82218 2166 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
6fc6879b
JM
2167 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2168 "pre-shared key may be incorrect");
5bf9a6c8
JM
2169 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2170 return; /* P2P group removed */
b19c098e 2171 wpas_auth_failed(wpa_s, "WRONG_KEY");
6fc6879b 2172 }
3636b891
JM
2173 if (!wpa_s->disconnected &&
2174 (!wpa_s->auto_reconnect_disabled ||
6e252b0d
JM
2175 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
2176 wpas_wps_searching(wpa_s))) {
d00821e9 2177 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
6e252b0d 2178 "reconnect (wps=%d/%d wpa_state=%d)",
f7da5a9e 2179 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
6e252b0d 2180 wpas_wps_searching(wpa_s),
f7da5a9e 2181 wpa_s->wpa_state);
d00821e9
JM
2182 if (wpa_s->wpa_state == WPA_COMPLETED &&
2183 wpa_s->current_ssid &&
2184 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
3d9975d5 2185 !locally_generated &&
d00821e9
JM
2186 disconnect_reason_recoverable(reason_code)) {
2187 /*
2188 * It looks like the AP has dropped association with
2189 * us, but could allow us to get back in. Try to
2190 * reconnect to the same BSS without full scan to save
2191 * time for some common cases.
2192 */
2193 fast_reconnect = wpa_s->current_bss;
2194 fast_reconnect_ssid = wpa_s->current_ssid;
2195 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
0d0a8ca1 2196 wpa_supplicant_req_scan(wpa_s, 0, 100000);
f7da5a9e
JM
2197 else
2198 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2199 "immediate scan");
0d0a8ca1 2200 } else {
d00821e9 2201 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
f049052b 2202 "try to re-connect");
0d0a8ca1
AC
2203 wpa_s->reassociate = 0;
2204 wpa_s->disconnected = 1;
433cd2ce 2205 wpa_supplicant_cancel_sched_scan(wpa_s);
0d0a8ca1 2206 }
6fc6879b 2207 bssid = wpa_s->bssid;
a8e16edc 2208 if (is_zero_ether_addr(bssid))
6fc6879b 2209 bssid = wpa_s->pending_bssid;
56d24b4e
JM
2210 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2211 wpas_connection_failed(wpa_s, bssid);
6fc6879b 2212 wpa_sm_notify_disassoc(wpa_s->wpa);
0bb1e425
GM
2213 if (locally_generated)
2214 wpa_s->disconnect_reason = -reason_code;
2215 else
2216 wpa_s->disconnect_reason = reason_code;
2217 wpas_notify_disconnect_reason(wpa_s);
6fc6879b 2218 if (wpa_supplicant_dynamic_keys(wpa_s)) {
f049052b 2219 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
6fc6879b
JM
2220 wpa_clear_keys(wpa_s, wpa_s->bssid);
2221 }
bcdf2096 2222 last_ssid = wpa_s->current_ssid;
6fc6879b 2223 wpa_supplicant_mark_disassoc(wpa_s);
e29853bb 2224
bcdf2096 2225 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
e29853bb 2226 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
bcdf2096
JM
2227 wpa_s->current_ssid = last_ssid;
2228 }
d00821e9 2229
eef7235d
JM
2230 if (fast_reconnect &&
2231 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2232 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2233 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2234 fast_reconnect->ssid_len) &&
2235 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid)) {
5928411e 2236#ifndef CONFIG_NO_SCAN_PROCESSING
d00821e9
JM
2237 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2238 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2239 fast_reconnect_ssid) < 0) {
2240 /* Recover through full scan */
2241 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2242 }
5928411e 2243#endif /* CONFIG_NO_SCAN_PROCESSING */
eef7235d
JM
2244 } else if (fast_reconnect) {
2245 /*
2246 * Could not reconnect to the same BSS due to network being
2247 * disabled. Use a new scan to match the alternative behavior
2248 * above, i.e., to continue automatic reconnection attempt in a
2249 * way that enforces disabled network rules.
2250 */
2251 wpa_supplicant_req_scan(wpa_s, 0, 100000);
d00821e9 2252 }
6fc6879b
JM
2253}
2254
2255
46690a3b 2256#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
01a17491 2257void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
46690a3b
JM
2258{
2259 struct wpa_supplicant *wpa_s = eloop_ctx;
2260
2261 if (!wpa_s->pending_mic_error_report)
2262 return;
2263
f049052b 2264 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
46690a3b
JM
2265 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2266 wpa_s->pending_mic_error_report = 0;
2267}
2268#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2269
2270
6fc6879b
JM
2271static void
2272wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2273 union wpa_event_data *data)
2274{
2275 int pairwise;
6473e5c8 2276 struct os_reltime t;
6fc6879b
JM
2277
2278 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2279 pairwise = (data && data->michael_mic_failure.unicast);
6473e5c8
JB
2280 os_get_reltime(&t);
2281 if ((wpa_s->last_michael_mic_error.sec &&
2282 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
46690a3b
JM
2283 wpa_s->pending_mic_error_report) {
2284 if (wpa_s->pending_mic_error_report) {
2285 /*
2286 * Send the pending MIC error report immediately since
2287 * we are going to start countermeasures and AP better
2288 * do the same.
2289 */
2290 wpa_sm_key_request(wpa_s->wpa, 1,
2291 wpa_s->pending_mic_error_pairwise);
2292 }
2293
2294 /* Send the new MIC error report immediately since we are going
2295 * to start countermeasures and AP better do the same.
2296 */
2297 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2298
6fc6879b
JM
2299 /* initialize countermeasures */
2300 wpa_s->countermeasures = 1;
8945cc45
BM
2301
2302 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2303
6fc6879b
JM
2304 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2305
2306 /*
2307 * Need to wait for completion of request frame. We do not get
2308 * any callback for the message completion, so just wait a
2309 * short while and hope for the best. */
2310 os_sleep(0, 10000);
2311
2312 wpa_drv_set_countermeasures(wpa_s, 1);
2313 wpa_supplicant_deauthenticate(wpa_s,
2314 WLAN_REASON_MICHAEL_MIC_FAILURE);
2315 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2316 wpa_s, NULL);
2317 eloop_register_timeout(60, 0,
2318 wpa_supplicant_stop_countermeasures,
2319 wpa_s, NULL);
2320 /* TODO: mark the AP rejected for 60 second. STA is
2321 * allowed to associate with another AP.. */
46690a3b
JM
2322 } else {
2323#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2324 if (wpa_s->mic_errors_seen) {
2325 /*
2326 * Reduce the effectiveness of Michael MIC error
2327 * reports as a means for attacking against TKIP if
2328 * more than one MIC failure is noticed with the same
2329 * PTK. We delay the transmission of the reports by a
2330 * random time between 0 and 60 seconds in order to
2331 * force the attacker wait 60 seconds before getting
2332 * the information on whether a frame resulted in a MIC
2333 * failure.
2334 */
2335 u8 rval[4];
2336 int sec;
2337
2338 if (os_get_random(rval, sizeof(rval)) < 0)
2339 sec = os_random() % 60;
2340 else
2341 sec = WPA_GET_BE32(rval) % 60;
f049052b
BG
2342 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2343 "report %d seconds", sec);
46690a3b
JM
2344 wpa_s->pending_mic_error_report = 1;
2345 wpa_s->pending_mic_error_pairwise = pairwise;
2346 eloop_cancel_timeout(
2347 wpa_supplicant_delayed_mic_error_report,
2348 wpa_s, NULL);
2349 eloop_register_timeout(
2350 sec, os_random() % 1000000,
2351 wpa_supplicant_delayed_mic_error_report,
2352 wpa_s, NULL);
2353 } else {
2354 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2355 }
2356#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2357 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2358#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
6fc6879b 2359 }
6473e5c8 2360 wpa_s->last_michael_mic_error = t;
46690a3b 2361 wpa_s->mic_errors_seen++;
6fc6879b
JM
2362}
2363
2364
a83d9c96
SL
2365#ifdef CONFIG_TERMINATE_ONLASTIF
2366static int any_interfaces(struct wpa_supplicant *head)
2367{
2368 struct wpa_supplicant *wpa_s;
2369
2370 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2371 if (!wpa_s->interface_removed)
2372 return 1;
2373 return 0;
2374}
2375#endif /* CONFIG_TERMINATE_ONLASTIF */
2376
2377
6fc6879b
JM
2378static void
2379wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2380 union wpa_event_data *data)
2381{
2382 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2383 return;
2384
2385 switch (data->interface_status.ievent) {
2386 case EVENT_INTERFACE_ADDED:
2387 if (!wpa_s->interface_removed)
2388 break;
2389 wpa_s->interface_removed = 0;
f049052b 2390 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
6fc6879b 2391 if (wpa_supplicant_driver_init(wpa_s) < 0) {
f049052b
BG
2392 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2393 "driver after interface was added");
6fc6879b
JM
2394 }
2395 break;
2396 case EVENT_INTERFACE_REMOVED:
f049052b 2397 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
6fc6879b
JM
2398 wpa_s->interface_removed = 1;
2399 wpa_supplicant_mark_disassoc(wpa_s);
cb6710a4 2400 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
6fc6879b
JM
2401 l2_packet_deinit(wpa_s->l2);
2402 wpa_s->l2 = NULL;
a83d9c96
SL
2403#ifdef CONFIG_TERMINATE_ONLASTIF
2404 /* check if last interface */
2405 if (!any_interfaces(wpa_s->global->ifaces))
2406 eloop_terminate();
2407#endif /* CONFIG_TERMINATE_ONLASTIF */
6fc6879b
JM
2408 break;
2409 }
2410}
2411
2412
2413#ifdef CONFIG_PEERKEY
2414static void
2415wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2416 union wpa_event_data *data)
2417{
2418 if (data == NULL)
2419 return;
2420 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2421}
2422#endif /* CONFIG_PEERKEY */
2423
2424
281ff0aa
GP
2425#ifdef CONFIG_TDLS
2426static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2427 union wpa_event_data *data)
2428{
2429 if (data == NULL)
2430 return;
2431 switch (data->tdls.oper) {
2432 case TDLS_REQUEST_SETUP:
3887878e
SD
2433 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2434 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2435 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2436 else
2437 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
281ff0aa
GP
2438 break;
2439 case TDLS_REQUEST_TEARDOWN:
f130b105
SD
2440 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2441 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2442 data->tdls.reason_code);
2443 else
2444 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2445 data->tdls.peer);
281ff0aa
GP
2446 break;
2447 }
2448}
2449#endif /* CONFIG_TDLS */
2450
2451
ad3872a3 2452#ifdef CONFIG_WNM
75cad1a0
XC
2453static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2454 union wpa_event_data *data)
2455{
2456 if (data == NULL)
2457 return;
2458 switch (data->wnm.oper) {
2459 case WNM_OPER_SLEEP:
2460 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2461 "(action=%d, intval=%d)",
2462 data->wnm.sleep_action, data->wnm.sleep_intval);
2463 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
cd0ef657 2464 data->wnm.sleep_intval, NULL);
75cad1a0
XC
2465 break;
2466 }
2467}
ad3872a3 2468#endif /* CONFIG_WNM */
75cad1a0
XC
2469
2470
6fc6879b
JM
2471#ifdef CONFIG_IEEE80211R
2472static void
2473wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2474 union wpa_event_data *data)
2475{
2476 if (data == NULL)
2477 return;
2478
2479 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2480 data->ft_ies.ies_len,
2481 data->ft_ies.ft_action,
babfbf15
JM
2482 data->ft_ies.target_ap,
2483 data->ft_ies.ric_ies,
2484 data->ft_ies.ric_ies_len) < 0) {
6fc6879b
JM
2485 /* TODO: prevent MLME/driver from trying to associate? */
2486 }
2487}
2488#endif /* CONFIG_IEEE80211R */
2489
2490
11ef8d35
JM
2491#ifdef CONFIG_IBSS_RSN
2492static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2493 union wpa_event_data *data)
2494{
df4bc509 2495 struct wpa_ssid *ssid;
df418245
XC
2496 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2497 return;
11ef8d35
JM
2498 if (data == NULL)
2499 return;
df4bc509
JM
2500 ssid = wpa_s->current_ssid;
2501 if (ssid == NULL)
2502 return;
2503 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2504 return;
2505
11ef8d35
JM
2506 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2507}
13adc57b
AQ
2508
2509
2510static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2511 union wpa_event_data *data)
2512{
2513 struct wpa_ssid *ssid = wpa_s->current_ssid;
2514
2515 if (ssid == NULL)
2516 return;
2517
2518 /* check if the ssid is correctly configured as IBSS/RSN */
2519 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2520 return;
2521
2522 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2523 data->rx_mgmt.frame_len);
2524}
11ef8d35
JM
2525#endif /* CONFIG_IBSS_RSN */
2526
2527
036f7c4a
JM
2528#ifdef CONFIG_IEEE80211R
2529static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2530 size_t len)
2531{
2532 const u8 *sta_addr, *target_ap_addr;
2533 u16 status;
2534
2535 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2536 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2537 return; /* only SME case supported for now */
2538 if (len < 1 + 2 * ETH_ALEN + 2)
2539 return;
2540 if (data[0] != 2)
2541 return; /* Only FT Action Response is supported for now */
2542 sta_addr = data + 1;
2543 target_ap_addr = data + 1 + ETH_ALEN;
2544 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
f049052b
BG
2545 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2546 MACSTR " TargetAP " MACSTR " status %u",
2547 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
036f7c4a
JM
2548
2549 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
f049052b
BG
2550 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2551 " in FT Action Response", MAC2STR(sta_addr));
036f7c4a
JM
2552 return;
2553 }
2554
2555 if (status) {
f049052b
BG
2556 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2557 "failure (status code %d)", status);
036f7c4a
JM
2558 /* TODO: report error to FT code(?) */
2559 return;
2560 }
2561
2562 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2563 len - (1 + 2 * ETH_ALEN + 2), 1,
2564 target_ap_addr, NULL, 0) < 0)
2565 return;
2566
fe191985
JM
2567#ifdef CONFIG_SME
2568 {
2569 struct wpa_bss *bss;
2570 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2571 if (bss)
2572 wpa_s->sme.freq = bss->freq;
62c72d72 2573 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
fe191985
JM
2574 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2575 WLAN_AUTH_FT);
2576 }
2577#endif /* CONFIG_SME */
036f7c4a
JM
2578}
2579#endif /* CONFIG_IEEE80211R */
2580
2581
7d878ca7
JM
2582static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2583 struct unprot_deauth *e)
2584{
2585#ifdef CONFIG_IEEE80211W
2586 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2587 "dropped: " MACSTR " -> " MACSTR
2588 " (reason code %u)",
2589 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2590 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2591#endif /* CONFIG_IEEE80211W */
2592}
2593
2594
2595static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2596 struct unprot_disassoc *e)
2597{
2598#ifdef CONFIG_IEEE80211W
2599 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2600 "dropped: " MACSTR " -> " MACSTR
2601 " (reason code %u)",
2602 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2603 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2604#endif /* CONFIG_IEEE80211W */
2605}
2606
2607
d7df0fa7
JM
2608static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
2609 u16 reason_code, int locally_generated,
2610 const u8 *ie, size_t ie_len, int deauth)
2611{
2612#ifdef CONFIG_AP
2613 if (wpa_s->ap_iface && addr) {
2614 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
2615 return;
2616 }
2617
2618 if (wpa_s->ap_iface) {
2619 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
2620 return;
2621 }
2622#endif /* CONFIG_AP */
2623
2624 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
2625
c60ba9f7
JM
2626 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
2627 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
2628 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
2629 eapol_sm_failed(wpa_s->eapol))) &&
2630 !wpa_s->eap_expected_failure))
b19c098e 2631 wpas_auth_failed(wpa_s, "AUTH_FAILED");
d7df0fa7
JM
2632
2633#ifdef CONFIG_P2P
43ee4704 2634 if (deauth && reason_code > 0) {
d7df0fa7
JM
2635 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
2636 locally_generated) > 0) {
2637 /*
2638 * The interface was removed, so cannot continue
2639 * processing any additional operations after this.
2640 */
2641 return;
2642 }
2643 }
2644#endif /* CONFIG_P2P */
2645
2646 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
2647 locally_generated);
2648}
2649
2650
2651static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
2652 struct disassoc_info *info)
2653{
2654 u16 reason_code = 0;
2655 int locally_generated = 0;
2656 const u8 *addr = NULL;
2657 const u8 *ie = NULL;
2658 size_t ie_len = 0;
2659
2660 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2661
2662 if (info) {
2663 addr = info->addr;
2664 ie = info->ie;
2665 ie_len = info->ie_len;
2666 reason_code = info->reason_code;
2667 locally_generated = info->locally_generated;
2668 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
2669 locally_generated ? " (locally generated)" : "");
2670 if (addr)
2671 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2672 MAC2STR(addr));
2673 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2674 ie, ie_len);
2675 }
2676
2677#ifdef CONFIG_AP
2678 if (wpa_s->ap_iface && info && info->addr) {
2679 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
2680 return;
2681 }
2682
2683 if (wpa_s->ap_iface) {
2684 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
2685 return;
2686 }
2687#endif /* CONFIG_AP */
2688
2689#ifdef CONFIG_P2P
2690 if (info) {
2691 wpas_p2p_disassoc_notif(
2692 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
2693 locally_generated);
2694 }
2695#endif /* CONFIG_P2P */
2696
2697 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2698 sme_event_disassoc(wpa_s, info);
2699
2700 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
2701 ie, ie_len, 0);
2702}
2703
2704
2705static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
2706 struct deauth_info *info)
2707{
2708 u16 reason_code = 0;
2709 int locally_generated = 0;
2710 const u8 *addr = NULL;
2711 const u8 *ie = NULL;
2712 size_t ie_len = 0;
2713
2714 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
2715
2716 if (info) {
2717 addr = info->addr;
2718 ie = info->ie;
2719 ie_len = info->ie_len;
2720 reason_code = info->reason_code;
2721 locally_generated = info->locally_generated;
2722 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2723 reason_code,
2724 locally_generated ? " (locally generated)" : "");
2725 if (addr) {
2726 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2727 MAC2STR(addr));
2728 }
2729 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
2730 ie, ie_len);
2731 }
2732
2733 wpa_reset_ft_completed(wpa_s->wpa);
2734
2735 wpas_event_disconnect(wpa_s, addr, reason_code,
2736 locally_generated, ie, ie_len, 1);
2737}
2738
2739
142817b2
JM
2740static const char * reg_init_str(enum reg_change_initiator init)
2741{
2742 switch (init) {
2743 case REGDOM_SET_BY_CORE:
2744 return "CORE";
2745 case REGDOM_SET_BY_USER:
2746 return "USER";
2747 case REGDOM_SET_BY_DRIVER:
2748 return "DRIVER";
2749 case REGDOM_SET_BY_COUNTRY_IE:
2750 return "COUNTRY_IE";
2751 case REGDOM_BEACON_HINT:
2752 return "BEACON_HINT";
2753 }
2754 return "?";
2755}
2756
2757
2758static const char * reg_type_str(enum reg_type type)
2759{
2760 switch (type) {
2761 case REGDOM_TYPE_UNKNOWN:
2762 return "UNKNOWN";
2763 case REGDOM_TYPE_COUNTRY:
2764 return "COUNTRY";
2765 case REGDOM_TYPE_WORLD:
2766 return "WORLD";
2767 case REGDOM_TYPE_CUSTOM_WORLD:
2768 return "CUSTOM_WORLD";
2769 case REGDOM_TYPE_INTERSECTION:
2770 return "INTERSECTION";
2771 }
2772 return "?";
2773}
2774
2775
2776static void wpa_supplicant_update_channel_list(
2777 struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
731ca636 2778{
731ca636
VKE
2779 struct wpa_supplicant *ifs;
2780
142817b2 2781 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
42619d68 2782 reg_init_str(info->initiator), reg_type_str(info->type),
142817b2
JM
2783 info->alpha2[0] ? " alpha2=" : "",
2784 info->alpha2[0] ? info->alpha2 : "");
2785
731ca636
VKE
2786 if (wpa_s->drv_priv == NULL)
2787 return; /* Ignore event during drv initialization */
2788
2789 free_hw_features(wpa_s);
2790 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(
2791 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags);
2792
731ca636 2793 wpas_p2p_update_channel_list(wpa_s);
731ca636
VKE
2794
2795 /*
c67e7e2a 2796 * Check other interfaces to see if they share the same radio. If
731ca636
VKE
2797 * so, they get updated with this same hw mode info.
2798 */
c67e7e2a
JM
2799 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
2800 radio_list) {
2801 if (ifs != wpa_s) {
731ca636
VKE
2802 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
2803 ifs->ifname);
2804 free_hw_features(ifs);
2805 ifs->hw.modes = wpa_drv_get_hw_feature_data(
2806 ifs, &ifs->hw.num_modes, &ifs->hw.flags);
2807 }
2808 }
2809}
2810
2811
dbfb8e82 2812static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
70d1e728
AO
2813 const u8 *frame, size_t len, int freq,
2814 int rssi)
dbfb8e82 2815{
70d95373 2816 const struct ieee80211_mgmt *mgmt;
dbfb8e82
JM
2817 const u8 *payload;
2818 size_t plen;
2819 u8 category;
2820
2821 if (len < IEEE80211_HDRLEN + 2)
2822 return;
2823
70d95373
JM
2824 mgmt = (const struct ieee80211_mgmt *) frame;
2825 payload = frame + IEEE80211_HDRLEN;
dbfb8e82 2826 category = *payload++;
70d95373 2827 plen = len - IEEE80211_HDRLEN - 1;
dbfb8e82
JM
2828
2829 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2830 " Category=%u DataLen=%d freq=%d MHz",
2831 MAC2STR(mgmt->sa), category, (int) plen, freq);
2832
d1f88001
MB
2833 if (category == WLAN_ACTION_WMM) {
2834 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
2835 return;
2836 }
2837
dbfb8e82
JM
2838#ifdef CONFIG_IEEE80211R
2839 if (category == WLAN_ACTION_FT) {
2840 ft_rx_action(wpa_s, payload, plen);
2841 return;
2842 }
2843#endif /* CONFIG_IEEE80211R */
2844
2845#ifdef CONFIG_IEEE80211W
2846#ifdef CONFIG_SME
2847 if (category == WLAN_ACTION_SA_QUERY) {
2848 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
2849 return;
2850 }
2851#endif /* CONFIG_SME */
2852#endif /* CONFIG_IEEE80211W */
2853
2854#ifdef CONFIG_WNM
2855 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
2856 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
2857 return;
2858 }
2859#endif /* CONFIG_WNM */
2860
2861#ifdef CONFIG_GAS
c5a64e2d
JM
2862 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
2863 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
dbfb8e82 2864 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
c5a64e2d 2865 mgmt->u.action.category,
dbfb8e82
JM
2866 payload, plen, freq) == 0)
2867 return;
2868#endif /* CONFIG_GAS */
2869
2870#ifdef CONFIG_TDLS
2871 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
2872 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
2873 wpa_dbg(wpa_s, MSG_DEBUG,
2874 "TDLS: Received Discovery Response from " MACSTR,
2875 MAC2STR(mgmt->sa));
2876 return;
2877 }
2878#endif /* CONFIG_TDLS */
2879
2880#ifdef CONFIG_INTERWORKING
2881 if (category == WLAN_ACTION_QOS && plen >= 1 &&
2882 payload[0] == QOS_QOS_MAP_CONFIG) {
2883 const u8 *pos = payload + 1;
2884 size_t qlen = plen - 1;
2885 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
2886 MACSTR, MAC2STR(mgmt->sa));
2887 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
2888 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
2889 pos[1] <= qlen - 2 && pos[1] >= 16)
2890 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
2891 return;
2892 }
2893#endif /* CONFIG_INTERWORKING */
2894
d89c0701
AK
2895 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
2896 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
2897 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
2898 return;
2899 }
2900
70d1e728
AO
2901 if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
2902 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
2903 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
2904 payload + 1, plen - 1,
2905 rssi);
2906 return;
2907 }
2908
dbfb8e82
JM
2909 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
2910 category, payload, plen, freq);
5f92659d
BC
2911 if (wpa_s->ifmsh)
2912 mesh_mpm_action_rx(wpa_s, mgmt, len);
dbfb8e82
JM
2913}
2914
2915
253f2e37
AH
2916static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
2917 union wpa_event_data *event)
2918{
2919#ifdef CONFIG_P2P
2920 struct wpa_supplicant *ifs;
2921#endif /* CONFIG_P2P */
2922 struct wpa_freq_range_list *list;
2923 char *str = NULL;
2924
2925 list = &event->freq_range;
2926
2927 if (list->num)
2928 str = freq_range_list_str(list);
2929 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
2930 str ? str : "");
2931
2932#ifdef CONFIG_P2P
2933 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
2934 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
2935 __func__);
2936 } else {
2937 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
2938 wpas_p2p_update_channel_list(wpa_s);
2939 }
2940
2941 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
2942 int freq;
2943 if (!ifs->current_ssid ||
2944 !ifs->current_ssid->p2p_group ||
2945 (ifs->current_ssid->mode != WPAS_MODE_P2P_GO &&
2946 ifs->current_ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION))
2947 continue;
2948
2949 freq = ifs->current_ssid->frequency;
2950 if (!freq_range_list_includes(list, freq)) {
2951 wpa_dbg(ifs, MSG_DEBUG, "P2P GO operating frequency %d MHz in safe range",
2952 freq);
2953 continue;
2954 }
2955
2956 wpa_dbg(ifs, MSG_DEBUG, "P2P GO operating in unsafe frequency %d MHz",
2957 freq);
2958 /* TODO: Consider using CSA or removing the group within
2959 * wpa_supplicant */
2960 wpa_msg(ifs, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
2961 }
2962#endif /* CONFIG_P2P */
2963
2964 os_free(str);
2965}
2966
2967
b41f2684
CL
2968static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
2969 union wpa_event_data *data)
2970{
2971 wpa_dbg(wpa_s, MSG_DEBUG,
2972 "Connection authorized by device, previous state %d",
2973 wpa_s->wpa_state);
2974 if (wpa_s->wpa_state == WPA_ASSOCIATED) {
2975 wpa_supplicant_cancel_auth_timeout(wpa_s);
2976 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2977 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2978 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2979 }
2980 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
2981 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
2982 data->assoc_info.ptk_kek);
2983}
2984
2985
9646a8ab 2986void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
6fc6879b
JM
2987 union wpa_event_data *data)
2988{
2989 struct wpa_supplicant *wpa_s = ctx;
2990
8401a6b0
JM
2991 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
2992 event != EVENT_INTERFACE_ENABLED &&
9b6f44cb
JM
2993 event != EVENT_INTERFACE_STATUS &&
2994 event != EVENT_SCHED_SCAN_STOPPED) {
6c3771d7
BG
2995 wpa_dbg(wpa_s, MSG_DEBUG,
2996 "Ignore event %s (%d) while interface is disabled",
2997 event_to_string(event), event);
8401a6b0
JM
2998 return;
2999 }
3000
74781dfc
JM
3001#ifndef CONFIG_NO_STDOUT_DEBUG
3002{
3003 int level = MSG_DEBUG;
3004
eab6f5e0 3005 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
74781dfc
JM
3006 const struct ieee80211_hdr *hdr;
3007 u16 fc;
3008 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
3009 fc = le_to_host16(hdr->frame_control);
3010 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3011 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
3012 level = MSG_EXCESSIVE;
3013 }
3014
3015 wpa_dbg(wpa_s, level, "Event %s (%d) received",
6c3771d7 3016 event_to_string(event), event);
74781dfc
JM
3017}
3018#endif /* CONFIG_NO_STDOUT_DEBUG */
9b7124b2 3019
6fc6879b 3020 switch (event) {
c2a04078
JM
3021 case EVENT_AUTH:
3022 sme_event_auth(wpa_s, data);
3023 break;
6fc6879b
JM
3024 case EVENT_ASSOC:
3025 wpa_supplicant_event_assoc(wpa_s, data);
b41f2684
CL
3026 if (data && data->assoc_info.authorized)
3027 wpa_supplicant_event_assoc_auth(wpa_s, data);
6fc6879b
JM
3028 break;
3029 case EVENT_DISASSOC:
d7df0fa7
JM
3030 wpas_event_disassoc(wpa_s,
3031 data ? &data->disassoc_info : NULL);
3032 break;
a84ed99e 3033 case EVENT_DEAUTH:
d7df0fa7
JM
3034 wpas_event_deauth(wpa_s,
3035 data ? &data->deauth_info : NULL);
6fc6879b
JM
3036 break;
3037 case EVENT_MICHAEL_MIC_FAILURE:
3038 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3039 break;
3040#ifndef CONFIG_NO_SCAN_PROCESSING
a5f40eff 3041 case EVENT_SCAN_STARTED:
dc3906cb 3042 os_get_reltime(&wpa_s->scan_start_time);
a5f40eff 3043 if (wpa_s->own_scan_requested) {
dc3906cb
JM
3044 struct os_reltime diff;
3045
3046 os_reltime_sub(&wpa_s->scan_start_time,
3047 &wpa_s->scan_trigger_time, &diff);
3048 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3049 diff.sec, diff.usec);
a5f40eff
JM
3050 wpa_s->own_scan_requested = 0;
3051 wpa_s->own_scan_running = 1;
d81c73be
JM
3052 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3053 wpa_s->manual_scan_use_id) {
abc05534
DS
3054 wpa_msg_ctrl(wpa_s, MSG_INFO,
3055 WPA_EVENT_SCAN_STARTED "id=%u",
3056 wpa_s->manual_scan_id);
d81c73be 3057 } else {
abc05534
DS
3058 wpa_msg_ctrl(wpa_s, MSG_INFO,
3059 WPA_EVENT_SCAN_STARTED);
d81c73be 3060 }
a5f40eff
JM
3061 } else {
3062 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3063 wpa_s->external_scan_running = 1;
abc05534 3064 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
a5f40eff
JM
3065 }
3066 break;
6fc6879b 3067 case EVENT_SCAN_RESULTS:
dc3906cb
JM
3068 if (os_reltime_initialized(&wpa_s->scan_start_time)) {
3069 struct os_reltime now, diff;
3070 os_get_reltime(&now);
3071 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3072 wpa_s->scan_start_time.sec = 0;
3073 wpa_s->scan_start_time.usec = 0;
3074 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3075 diff.sec, diff.usec);
3076 }
8d923a4a 3077 wpa_supplicant_event_scan_results(wpa_s, data);
a5f40eff
JM
3078 wpa_s->own_scan_running = 0;
3079 wpa_s->external_scan_running = 0;
6428d0a7 3080 radio_work_check_next(wpa_s);
6fc6879b
JM
3081 break;
3082#endif /* CONFIG_NO_SCAN_PROCESSING */
3083 case EVENT_ASSOCINFO:
3084 wpa_supplicant_event_associnfo(wpa_s, data);
3085 break;
3086 case EVENT_INTERFACE_STATUS:
3087 wpa_supplicant_event_interface_status(wpa_s, data);
3088 break;
3089 case EVENT_PMKID_CANDIDATE:
3090 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3091 break;
3092#ifdef CONFIG_PEERKEY
3093 case EVENT_STKSTART:
3094 wpa_supplicant_event_stkstart(wpa_s, data);
3095 break;
3096#endif /* CONFIG_PEERKEY */
281ff0aa
GP
3097#ifdef CONFIG_TDLS
3098 case EVENT_TDLS:
3099 wpa_supplicant_event_tdls(wpa_s, data);
3100 break;
3101#endif /* CONFIG_TDLS */
ad3872a3 3102#ifdef CONFIG_WNM
75cad1a0
XC
3103 case EVENT_WNM:
3104 wpa_supplicant_event_wnm(wpa_s, data);
3105 break;
ad3872a3 3106#endif /* CONFIG_WNM */
6fc6879b
JM
3107#ifdef CONFIG_IEEE80211R
3108 case EVENT_FT_RESPONSE:
3109 wpa_supplicant_event_ft_response(wpa_s, data);
3110 break;
3111#endif /* CONFIG_IEEE80211R */
11ef8d35
JM
3112#ifdef CONFIG_IBSS_RSN
3113 case EVENT_IBSS_RSN_START:
3114 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3115 break;
3116#endif /* CONFIG_IBSS_RSN */
efa46078 3117 case EVENT_ASSOC_REJECT:
c05d6d18
JM
3118 if (data->assoc_reject.bssid)
3119 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3120 "bssid=" MACSTR " status_code=%u",
3121 MAC2STR(data->assoc_reject.bssid),
3122 data->assoc_reject.status_code);
3123 else
3124 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3125 "status_code=%u",
3126 data->assoc_reject.status_code);
ea78c315
JM
3127 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3128 sme_event_assoc_reject(wpa_s, data);
10737aba
JM
3129 else {
3130 const u8 *bssid = data->assoc_reject.bssid;
3131 if (bssid == NULL || is_zero_ether_addr(bssid))
3132 bssid = wpa_s->pending_bssid;
3133 wpas_connection_failed(wpa_s, bssid);
3134 wpa_supplicant_mark_disassoc(wpa_s);
3135 }
efa46078 3136 break;
da1fb17c 3137 case EVENT_AUTH_TIMED_OUT:
9a700ff9
JM
3138 /* It is possible to get this event from earlier connection */
3139 if (wpa_s->current_ssid &&
3140 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3141 wpa_dbg(wpa_s, MSG_DEBUG,
3142 "Ignore AUTH_TIMED_OUT in mesh configuration");
3143 break;
3144 }
ea78c315
JM
3145 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3146 sme_event_auth_timed_out(wpa_s, data);
da1fb17c
JM
3147 break;
3148 case EVENT_ASSOC_TIMED_OUT:
9a700ff9
JM
3149 /* It is possible to get this event from earlier connection */
3150 if (wpa_s->current_ssid &&
3151 wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3152 wpa_dbg(wpa_s, MSG_DEBUG,
3153 "Ignore ASSOC_TIMED_OUT in mesh configuration");
3154 break;
3155 }
ea78c315
JM
3156 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3157 sme_event_assoc_timed_out(wpa_s, data);
da1fb17c 3158 break;
f8b1f695 3159 case EVENT_TX_STATUS:
f049052b
BG
3160 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3161 " type=%d stype=%d",
3162 MAC2STR(data->tx_status.dst),
3163 data->tx_status.type, data->tx_status.stype);
24f6497c 3164#ifdef CONFIG_AP
9bae1be0 3165 if (wpa_s->ap_iface == NULL) {
24f6497c 3166#ifdef CONFIG_OFFCHANNEL
9bae1be0
JM
3167 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3168 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
24f6497c 3169 offchannel_send_action_tx_status(
9bae1be0
JM
3170 wpa_s, data->tx_status.dst,
3171 data->tx_status.data,
3172 data->tx_status.data_len,
93b7ddd0 3173 data->tx_status.ack ?
24f6497c
JM
3174 OFFCHANNEL_SEND_ACTION_SUCCESS :
3175 OFFCHANNEL_SEND_ACTION_NO_ACK);
3176#endif /* CONFIG_OFFCHANNEL */
9bae1be0
JM
3177 break;
3178 }
24f6497c
JM
3179#endif /* CONFIG_AP */
3180#ifdef CONFIG_OFFCHANNEL
f049052b
BG
3181 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3182 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
9bae1be0
JM
3183 /*
3184 * Catch TX status events for Action frames we sent via group
3185 * interface in GO mode.
3186 */
3187 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3188 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3189 os_memcmp(wpa_s->parent->pending_action_dst,
3190 data->tx_status.dst, ETH_ALEN) == 0) {
24f6497c 3191 offchannel_send_action_tx_status(
9bae1be0
JM
3192 wpa_s->parent, data->tx_status.dst,
3193 data->tx_status.data,
3194 data->tx_status.data_len,
1d39378a 3195 data->tx_status.ack ?
24f6497c
JM
3196 OFFCHANNEL_SEND_ACTION_SUCCESS :
3197 OFFCHANNEL_SEND_ACTION_NO_ACK);
f8b1f695 3198 break;
9bae1be0 3199 }
24f6497c
JM
3200#endif /* CONFIG_OFFCHANNEL */
3201#ifdef CONFIG_AP
f8b1f695
JM
3202 switch (data->tx_status.type) {
3203 case WLAN_FC_TYPE_MGMT:
3204 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3205 data->tx_status.data_len,
3206 data->tx_status.stype,
3207 data->tx_status.ack);
3208 break;
3209 case WLAN_FC_TYPE_DATA:
3210 ap_tx_status(wpa_s, data->tx_status.dst,
3211 data->tx_status.data,
3212 data->tx_status.data_len,
3213 data->tx_status.ack);
3214 break;
3215 }
24f6497c 3216#endif /* CONFIG_AP */
f8b1f695 3217 break;
24f6497c 3218#ifdef CONFIG_AP
dd840f79
JB
3219 case EVENT_EAPOL_TX_STATUS:
3220 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3221 data->eapol_tx_status.data,
3222 data->eapol_tx_status.data_len,
3223 data->eapol_tx_status.ack);
3224 break;
bcf24348
JB
3225 case EVENT_DRIVER_CLIENT_POLL_OK:
3226 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3227 break;
f8b1f695
JM
3228 case EVENT_RX_FROM_UNKNOWN:
3229 if (wpa_s->ap_iface == NULL)
3230 break;
9b90955e
JB
3231 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3232 data->rx_from_unknown.wds);
f8b1f695 3233 break;
1b487b8b
TP
3234 case EVENT_CH_SWITCH:
3235 if (!data)
3236 break;
3237 if (!wpa_s->ap_iface) {
3238 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch "
3239 "event in non-AP mode");
3240 break;
3241 }
3242
1b487b8b
TP
3243 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3244 data->ch_switch.ht_enabled,
8d1fdde7
JD
3245 data->ch_switch.ch_offset,
3246 data->ch_switch.ch_width,
3247 data->ch_switch.cf1,
3248 data->ch_switch.cf2);
1b487b8b 3249 break;
13adc57b 3250#endif /* CONFIG_AP */
2d43d37f
JB
3251 case EVENT_RX_MGMT: {
3252 u16 fc, stype;
3253 const struct ieee80211_mgmt *mgmt;
3254
60b893df
JM
3255#ifdef CONFIG_TESTING_OPTIONS
3256 if (wpa_s->ext_mgmt_frame_handling) {
3257 struct rx_mgmt *rx = &data->rx_mgmt;
3258 size_t hex_len = 2 * rx->frame_len + 1;
3259 char *hex = os_malloc(hex_len);
3260 if (hex) {
3261 wpa_snprintf_hex(hex, hex_len,
3262 rx->frame, rx->frame_len);
3263 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3264 rx->freq, rx->datarate, rx->ssi_signal,
3265 hex);
3266 os_free(hex);
3267 }
3268 break;
3269 }
3270#endif /* CONFIG_TESTING_OPTIONS */
3271
2d43d37f
JB
3272 mgmt = (const struct ieee80211_mgmt *)
3273 data->rx_mgmt.frame;
3274 fc = le_to_host16(mgmt->frame_control);
3275 stype = WLAN_FC_GET_STYPE(fc);
3276
13adc57b 3277#ifdef CONFIG_AP
9bae1be0 3278 if (wpa_s->ap_iface == NULL) {
13adc57b 3279#endif /* CONFIG_AP */
9bae1be0 3280#ifdef CONFIG_P2P
9bae1be0
JM
3281 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3282 data->rx_mgmt.frame_len > 24) {
3283 const u8 *src = mgmt->sa;
3284 const u8 *ie = mgmt->u.probe_req.variable;
3285 size_t ie_len = data->rx_mgmt.frame_len -
3286 (mgmt->u.probe_req.variable -
3287 data->rx_mgmt.frame);
baf513d6
JB
3288 wpas_p2p_probe_req_rx(
3289 wpa_s, src, mgmt->da,
3290 mgmt->bssid, ie, ie_len,
3291 data->rx_mgmt.ssi_signal);
9bae1be0
JM
3292 break;
3293 }
3294#endif /* CONFIG_P2P */
13adc57b 3295#ifdef CONFIG_IBSS_RSN
5f92659d
BC
3296 if (wpa_s->current_ssid &&
3297 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3298 stype == WLAN_FC_STYPE_AUTH &&
13adc57b
AQ
3299 data->rx_mgmt.frame_len >= 30) {
3300 wpa_supplicant_event_ibss_auth(wpa_s, data);
3301 break;
3302 }
3303#endif /* CONFIG_IBSS_RSN */
dbfb8e82
JM
3304
3305 if (stype == WLAN_FC_STYPE_ACTION) {
3306 wpas_event_rx_mgmt_action(
70d95373
JM
3307 wpa_s, data->rx_mgmt.frame,
3308 data->rx_mgmt.frame_len,
70d1e728
AO
3309 data->rx_mgmt.freq,
3310 data->rx_mgmt.ssi_signal);
dbfb8e82
JM
3311 break;
3312 }
3313
5f92659d
BC
3314 if (wpa_s->ifmsh) {
3315 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3316 break;
3317 }
3318
f049052b
BG
3319 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3320 "management frame in non-AP mode");
f8b1f695 3321 break;
13adc57b 3322#ifdef CONFIG_AP
9bae1be0 3323 }
2d43d37f
JB
3324
3325 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3326 data->rx_mgmt.frame_len > 24) {
3327 const u8 *ie = mgmt->u.probe_req.variable;
3328 size_t ie_len = data->rx_mgmt.frame_len -
3329 (mgmt->u.probe_req.variable -
3330 data->rx_mgmt.frame);
3331
3332 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3333 mgmt->bssid, ie, ie_len,
3334 data->rx_mgmt.ssi_signal);
2d43d37f
JB
3335 }
3336
2a8b7416 3337 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
13adc57b 3338#endif /* CONFIG_AP */
f8b1f695 3339 break;
2d43d37f 3340 }
e67b55fb 3341 case EVENT_RX_PROBE_REQ:
b211f3eb
JM
3342 if (data->rx_probe_req.sa == NULL ||
3343 data->rx_probe_req.ie == NULL)
3344 break;
e67b55fb
JM
3345#ifdef CONFIG_AP
3346 if (wpa_s->ap_iface) {
3347 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3348 data->rx_probe_req.sa,
04a85e44
JM
3349 data->rx_probe_req.da,
3350 data->rx_probe_req.bssid,
e67b55fb 3351 data->rx_probe_req.ie,
baf513d6
JB
3352 data->rx_probe_req.ie_len,
3353 data->rx_probe_req.ssi_signal);
e67b55fb
JM
3354 break;
3355 }
3356#endif /* CONFIG_AP */
e67b55fb 3357 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
04a85e44
JM
3358 data->rx_probe_req.da,
3359 data->rx_probe_req.bssid,
e67b55fb 3360 data->rx_probe_req.ie,
baf513d6
JB
3361 data->rx_probe_req.ie_len,
3362 data->rx_probe_req.ssi_signal);
036f7c4a 3363 break;
9bae1be0 3364 case EVENT_REMAIN_ON_CHANNEL:
24f6497c
JM
3365#ifdef CONFIG_OFFCHANNEL
3366 offchannel_remain_on_channel_cb(
3367 wpa_s, data->remain_on_channel.freq,
3368 data->remain_on_channel.duration);
3369#endif /* CONFIG_OFFCHANNEL */
9bae1be0
JM
3370 wpas_p2p_remain_on_channel_cb(
3371 wpa_s, data->remain_on_channel.freq,
3372 data->remain_on_channel.duration);
3373 break;
3374 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
24f6497c
JM
3375#ifdef CONFIG_OFFCHANNEL
3376 offchannel_cancel_remain_on_channel_cb(
3377 wpa_s, data->remain_on_channel.freq);
3378#endif /* CONFIG_OFFCHANNEL */
9bae1be0
JM
3379 wpas_p2p_cancel_remain_on_channel_cb(
3380 wpa_s, data->remain_on_channel.freq);
3381 break;
a8e0505b
JM
3382 case EVENT_EAPOL_RX:
3383 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3384 data->eapol_rx.data,
3385 data->eapol_rx.data_len);
3386 break;
e2f74005 3387 case EVENT_SIGNAL_CHANGE:
0cd86028
JM
3388 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3389 "above=%d signal=%d noise=%d txrate=%d",
3390 data->signal_change.above_threshold,
3391 data->signal_change.current_signal,
3392 data->signal_change.current_noise,
3393 data->signal_change.current_txrate);
e2f74005 3394 bgscan_notify_signal_change(
60a972a6 3395 wpa_s, data->signal_change.above_threshold,
174fa789
PS
3396 data->signal_change.current_signal,
3397 data->signal_change.current_noise,
3398 data->signal_change.current_txrate);
e2f74005 3399 break;
8401a6b0 3400 case EVENT_INTERFACE_ENABLED:
f049052b 3401 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
8401a6b0 3402 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
bfba8deb 3403 wpa_supplicant_update_mac_addr(wpa_s);
782e2f78
IP
3404 if (wpa_s->p2p_mgmt) {
3405 wpa_supplicant_set_state(wpa_s,
3406 WPA_DISCONNECTED);
3407 break;
3408 }
3409
199716ad 3410#ifdef CONFIG_AP
9919f7a2
JB
3411 if (!wpa_s->ap_iface) {
3412 wpa_supplicant_set_state(wpa_s,
3413 WPA_DISCONNECTED);
635874b5 3414 wpa_s->scan_req = NORMAL_SCAN_REQ;
9919f7a2
JB
3415 wpa_supplicant_req_scan(wpa_s, 0, 0);
3416 } else
3417 wpa_supplicant_set_state(wpa_s,
3418 WPA_COMPLETED);
199716ad
BG
3419#else /* CONFIG_AP */
3420 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3421 wpa_supplicant_req_scan(wpa_s, 0, 0);
3422#endif /* CONFIG_AP */
8401a6b0
JM
3423 }
3424 break;
3425 case EVENT_INTERFACE_DISABLED:
f049052b 3426 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
6f72577f
IP
3427#ifdef CONFIG_P2P
3428 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3429 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3430 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
635874b5
JM
3431 /*
3432 * Mark interface disabled if this happens to end up not
3433 * being removed as a separate P2P group interface.
3434 */
3435 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
6f72577f
IP
3436 /*
3437 * The interface was externally disabled. Remove
3438 * it assuming an external entity will start a
3439 * new session if needed.
3440 */
8f2cf379
JM
3441 if (wpa_s->current_ssid &&
3442 wpa_s->current_ssid->p2p_group)
3443 wpas_p2p_interface_unavailable(wpa_s);
3444 else
3445 wpas_p2p_disconnect(wpa_s);
635874b5
JM
3446 /*
3447 * wpa_s instance may have been freed, so must not use
3448 * it here anymore.
3449 */
6f72577f
IP
3450 break;
3451 }
c71c2416
JM
3452 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3453 p2p_in_progress(wpa_s->global->p2p) > 1) {
3454 /* This radio work will be cancelled, so clear P2P
3455 * state as well.
3456 */
3457 p2p_stop_find(wpa_s->global->p2p);
3458 }
6f72577f
IP
3459#endif /* CONFIG_P2P */
3460
b7a6702f
JM
3461 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3462 /*
3463 * Indicate disconnection to keep ctrl_iface events
3464 * consistent.
3465 */
3466 wpa_supplicant_event_disassoc(
3467 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3468 }
8401a6b0 3469 wpa_supplicant_mark_disassoc(wpa_s);
b3253ebb
AO
3470 radio_remove_works(wpa_s, NULL, 0);
3471
8401a6b0
JM
3472 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3473 break;
b5c9da8d 3474 case EVENT_CHANNEL_LIST_CHANGED:
142817b2
JM
3475 wpa_supplicant_update_channel_list(
3476 wpa_s, &data->channel_list_changed);
c973f386
JM
3477 break;
3478 case EVENT_INTERFACE_UNAVAILABLE:
c973f386 3479 wpas_p2p_interface_unavailable(wpa_s);
7cfc4ac3
AGS
3480 break;
3481 case EVENT_BEST_CHANNEL:
f049052b
BG
3482 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3483 "(%d %d %d)",
3484 data->best_chan.freq_24, data->best_chan.freq_5,
3485 data->best_chan.freq_overall);
7cfc4ac3
AGS
3486 wpa_s->best_24_freq = data->best_chan.freq_24;
3487 wpa_s->best_5_freq = data->best_chan.freq_5;
3488 wpa_s->best_overall_freq = data->best_chan.freq_overall;
7cfc4ac3
AGS
3489 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3490 data->best_chan.freq_5,
3491 data->best_chan.freq_overall);
b5c9da8d 3492 break;
7d878ca7
JM
3493 case EVENT_UNPROT_DEAUTH:
3494 wpa_supplicant_event_unprot_deauth(wpa_s,
3495 &data->unprot_deauth);
3496 break;
3497 case EVENT_UNPROT_DISASSOC:
3498 wpa_supplicant_event_unprot_disassoc(wpa_s,
3499 &data->unprot_disassoc);
3500 break;
0d7e5a3a
JB
3501 case EVENT_STATION_LOW_ACK:
3502#ifdef CONFIG_AP
3503 if (wpa_s->ap_iface && data)
3504 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3505 data->low_ack.addr);
3506#endif /* CONFIG_AP */
8f15f711
AN
3507#ifdef CONFIG_TDLS
3508 if (data)
947f900f
AN
3509 wpa_tdls_disable_unreachable_link(wpa_s->wpa,
3510 data->low_ack.addr);
8f15f711 3511#endif /* CONFIG_TDLS */
0d7e5a3a 3512 break;
ea244d21
XC
3513 case EVENT_IBSS_PEER_LOST:
3514#ifdef CONFIG_IBSS_RSN
3515 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
3516#endif /* CONFIG_IBSS_RSN */
3517 break;
b14a210c
JB
3518 case EVENT_DRIVER_GTK_REKEY:
3519 if (os_memcmp(data->driver_gtk_rekey.bssid,
3520 wpa_s->bssid, ETH_ALEN))
3521 break;
3522 if (!wpa_s->wpa)
3523 break;
3524 wpa_sm_update_replay_ctr(wpa_s->wpa,
3525 data->driver_gtk_rekey.replay_ctr);
3526 break;
cbdf3507 3527 case EVENT_SCHED_SCAN_STOPPED:
dd271857 3528 wpa_s->pno = 0;
cbdf3507
LC
3529 wpa_s->sched_scanning = 0;
3530 wpa_supplicant_notify_scanning(wpa_s, 0);
3531
9b6f44cb
JM
3532 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
3533 break;
3534
cbdf3507 3535 /*
cf70d298
RM
3536 * Start a new sched scan to continue searching for more SSIDs
3537 * either if timed out or PNO schedule scan is pending.
cbdf3507 3538 */
5e3ddf4d
AB
3539 if (wpa_s->sched_scan_timed_out) {
3540 wpa_supplicant_req_sched_scan(wpa_s);
3541 } else if (wpa_s->pno_sched_pending) {
3542 wpa_s->pno_sched_pending = 0;
3543 wpas_start_pno(wpa_s);
cf70d298
RM
3544 }
3545
cbdf3507 3546 break;
783fcb7d
GG
3547 case EVENT_WPS_BUTTON_PUSHED:
3548#ifdef CONFIG_WPS
3549 wpas_wps_start_pbc(wpa_s, NULL, 0);
3550#endif /* CONFIG_WPS */
3551 break;
253f2e37
AH
3552 case EVENT_AVOID_FREQUENCIES:
3553 wpa_supplicant_notify_avoid_freq(wpa_s, data);
3554 break;
3140803b
RM
3555 case EVENT_CONNECT_FAILED_REASON:
3556#ifdef CONFIG_AP
3557 if (!wpa_s->ap_iface || !data)
3558 break;
3559 hostapd_event_connect_failed_reason(
3560 wpa_s->ap_iface->bss[0],
3561 data->connect_failed_reason.addr,
3562 data->connect_failed_reason.code);
3563#endif /* CONFIG_AP */
3564 break;
8319e312 3565 case EVENT_NEW_PEER_CANDIDATE:
eac02316
MH
3566#ifdef CONFIG_MESH
3567 if (!wpa_s->ifmsh || !data)
3568 break;
8319e312
TP
3569 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
3570 data->mesh_peer.ies,
3571 data->mesh_peer.ie_len);
eac02316 3572#endif /* CONFIG_MESH */
8319e312 3573 break;
6fc6879b 3574 default:
f049052b 3575 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
6fc6879b
JM
3576 break;
3577 }
3578}