]> git.ipfire.org Git - thirdparty/hostap.git/blame - wpa_supplicant/events.c
projects / thirdparty / hostap.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
HS 2.0R2: Add common OSEN definitions
[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"
6fc6879b
JM		 45
46
5d5c4ee5 47#ifndef CONFIG_NO_SCAN_PROCESSING
06b7f58d 48static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
cc4952ad 49 int new_scan, int own_request);
5d5c4ee5 50#endif /* CONFIG_NO_SCAN_PROCESSING */
d6bbcce4
JM		 51
52
00e5e3d5
JM		 53static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
54 struct wpa_ssid *ssid)
55{
4e1eae1d 56 struct os_reltime now;
00e5e3d5
JM		 57
58 if (ssid == NULL || ssid->disabled_until.sec == 0)
59 return 0;
60
4e1eae1d 61 os_get_reltime(&now);
00e5e3d5
JM		 62 if (ssid->disabled_until.sec > now.sec)
63 return ssid->disabled_until.sec - now.sec;
64
65 wpas_clear_temp_disabled(wpa_s, ssid, 0);
66
67 return 0;
68}
69
70
5cd47405
JM		 71static struct wpa_bss * wpa_supplicant_get_new_bss(
72 struct wpa_supplicant *wpa_s, const u8 *bssid)
73{
74 struct wpa_bss *bss = NULL;
75 struct wpa_ssid *ssid = wpa_s->current_ssid;
76
77 if (ssid->ssid_len > 0)
78 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
79 if (!bss)
80 bss = wpa_bss_get_bssid(wpa_s, bssid);
81
82 return bss;
83}
84
85
6fc6879b
JM		 86static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
87{
8bac466b 88 struct wpa_ssid *ssid, *old_ssid;
5cd47405 89 struct wpa_bss *bss;
00e5e3d5 90 int res;
6fc6879b
JM		 91
92 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
93 return 0;
94
f049052b
BG		 95 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
96 "information");
6fc6879b
JM		 97 ssid = wpa_supplicant_get_ssid(wpa_s);
98 if (ssid == NULL) {
f049052b
BG		 99 wpa_msg(wpa_s, MSG_INFO,
100 "No network configuration found for the current AP");
6fc6879b
JM		 101 return -1;
102 }
103
349493bd 104 if (wpas_network_disabled(wpa_s, ssid)) {
f049052b 105 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
6fc6879b
JM		 106 return -1;
107 }
108
6407f413
JM		 109 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
110 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
111 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
112 return -1;
113 }
114
00e5e3d5
JM		 115 res = wpas_temp_disabled(wpa_s, ssid);
116 if (res > 0) {
117 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
118 "disabled for %d second(s)", res);
119 return -1;
120 }
121
f049052b
BG		 122 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
123 "current AP");
0bf927a0 124 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
6fc6879b
JM		 125 u8 wpa_ie[80];
126 size_t wpa_ie_len = sizeof(wpa_ie);
cbf61176
JM		 127 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
128 wpa_ie, &wpa_ie_len) < 0)
129 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
6fc6879b
JM		 130 } else {
131 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
132 }
133
134 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
135 eapol_sm_invalidate_cached_session(wpa_s->eapol);
8bac466b 136 old_ssid = wpa_s->current_ssid;
6fc6879b 137 wpa_s->current_ssid = ssid;
5cd47405
JM		 138
139 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
140 if (!bss) {
141 wpa_supplicant_update_scan_results(wpa_s);
142
143 /* Get the BSS from the new scan results */
144 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
145 }
146
147 if (bss)
148 wpa_s->current_bss = bss;
149
6fc6879b
JM		 150 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
151 wpa_supplicant_initiate_eapol(wpa_s);
8bac466b
JM		 152 if (old_ssid != wpa_s->current_ssid)
153 wpas_notify_network_changed(wpa_s);
6fc6879b
JM		 154
155 return 0;
156}
157
158
01a17491 159void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
6fc6879b
JM		 160{
161 struct wpa_supplicant *wpa_s = eloop_ctx;
162
163 if (wpa_s->countermeasures) {
164 wpa_s->countermeasures = 0;
165 wpa_drv_set_countermeasures(wpa_s, 0);
166 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
167 wpa_supplicant_req_scan(wpa_s, 0, 0);
168 }
169}
170
171
172void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
173{
8bac466b
JM		 174 int bssid_changed;
175
b6668734
JM		 176 wnm_bss_keep_alive_deinit(wpa_s);
177
78177a00
JM		 178#ifdef CONFIG_IBSS_RSN
179 ibss_rsn_deinit(wpa_s->ibss_rsn);
180 wpa_s->ibss_rsn = NULL;
181#endif /* CONFIG_IBSS_RSN */
182
ca62e114
JM		 183#ifdef CONFIG_AP
184 wpa_supplicant_ap_deinit(wpa_s);
185#endif /* CONFIG_AP */
186
8401a6b0
JM		 187 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
188 return;
189
6fc6879b 190 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
8bac466b 191 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
6fc6879b
JM		 192 os_memset(wpa_s->bssid, 0, ETH_ALEN);
193 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
a0227929
JM		 194#ifdef CONFIG_SME
195 wpa_s->sme.prev_bssid_set = 0;
196#endif /* CONFIG_SME */
b1aebbc4
JM		 197#ifdef CONFIG_P2P
198 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
199#endif /* CONFIG_P2P */
be8be671 200 wpa_s->current_bss = NULL;
3c85f144 201 wpa_s->assoc_freq = 0;
8fd0f0f3
HW		 202#ifdef CONFIG_IEEE80211R
203#ifdef CONFIG_SME
204 if (wpa_s->sme.ft_ies)
205 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
206#endif /* CONFIG_SME */
207#endif /* CONFIG_IEEE80211R */
208
8bac466b
JM		 209 if (bssid_changed)
210 wpas_notify_bssid_changed(wpa_s);
211
6fc6879b
JM		 212 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
213 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
56586197 214 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
6fc6879b
JM		 215 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
216 wpa_s->ap_ies_from_associnfo = 0;
0d30cc24 217 wpa_s->current_ssid = NULL;
25a8f9e3 218 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
0d30cc24 219 wpa_s->key_mgmt = 0;
6fc6879b
JM		 220}
221
222
223static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
224{
225 struct wpa_ie_data ie;
226 int pmksa_set = -1;
227 size_t i;
228
229 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
230 ie.pmkid == NULL)
231 return;
232
233 for (i = 0; i < ie.num_pmkid; i++) {
234 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
235 ie.pmkid + i * PMKID_LEN,
236 NULL, NULL, 0);
237 if (pmksa_set == 0) {
238 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
239 break;
240 }
241 }
242
f049052b
BG		 243 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
244 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
6fc6879b
JM		 245}
246
247
248static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
249 union wpa_event_data *data)
250{
251 if (data == NULL) {
f049052b
BG		 252 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
253 "event");
6fc6879b
JM		 254 return;
255 }
f049052b
BG		 256 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
257 " index=%d preauth=%d",
258 MAC2STR(data->pmkid_candidate.bssid),
259 data->pmkid_candidate.index,
260 data->pmkid_candidate.preauth);
6fc6879b
JM		 261
262 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
263 data->pmkid_candidate.index,
264 data->pmkid_candidate.preauth);
265}
266
267
268static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
269{
270 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
271 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
272 return 0;
273
274#ifdef IEEE8021X_EAPOL
275 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
276 wpa_s->current_ssid &&
277 !(wpa_s->current_ssid->eapol_flags &
278 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
279 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
280 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
281 * plaintext or static WEP keys). */
282 return 0;
283 }
284#endif /* IEEE8021X_EAPOL */
285
286 return 1;
287}
288
289
290/**
291 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
292 * @wpa_s: pointer to wpa_supplicant data
293 * @ssid: Configuration data for the network
294 * Returns: 0 on success, -1 on failure
295 *
296 * This function is called when starting authentication with a network that is
297 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
298 */
299int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
300 struct wpa_ssid *ssid)
301{
302#ifdef IEEE8021X_EAPOL
b832d34c 303#ifdef PCSC_FUNCS
eb324600 304 int aka = 0, sim = 0;
6fc6879b 305
a5d44ac0
JM		 306 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL ||
307 wpa_s->conf->external_sim)
6fc6879b
JM		 308 return 0;
309
310 if (ssid->eap.eap_methods == NULL) {
311 sim = 1;
312 aka = 1;
313 } else {
314 struct eap_method_type *eap = ssid->eap.eap_methods;
315 while (eap->vendor != EAP_VENDOR_IETF ||
316 eap->method != EAP_TYPE_NONE) {
317 if (eap->vendor == EAP_VENDOR_IETF) {
318 if (eap->method == EAP_TYPE_SIM)
319 sim = 1;
3d332fe7
JM		 320 else if (eap->method == EAP_TYPE_AKA ||
321 eap->method == EAP_TYPE_AKA_PRIME)
6fc6879b
JM		 322 aka = 1;
323 }
324 eap++;
325 }
326 }
327
328 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
329 sim = 0;
3d332fe7
JM		 330 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
331 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
332 NULL)
6fc6879b
JM		 333 aka = 0;
334
335 if (!sim && !aka) {
f049052b
BG		 336 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
337 "use SIM, but neither EAP-SIM nor EAP-AKA are "
338 "enabled");
6fc6879b
JM		 339 return 0;
340 }
341
f049052b
BG		 342 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
343 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
eb324600 344
22cf7d73 345 wpa_s->scard = scard_init(NULL);
6fc6879b 346 if (wpa_s->scard == NULL) {
f049052b
BG		 347 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
348 "(pcsc-lite)");
6fc6879b
JM		 349 return -1;
350 }
351 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
352 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
b832d34c 353#endif /* PCSC_FUNCS */
6fc6879b
JM		 354#endif /* IEEE8021X_EAPOL */
355
356 return 0;
357}
358
359
360#ifndef CONFIG_NO_SCAN_PROCESSING
86bd1410
JM		 361
362static int has_wep_key(struct wpa_ssid *ssid)
363{
364 int i;
365
366 for (i = 0; i < NUM_WEP_KEYS; i++) {
367 if (ssid->wep_key_len[i])
368 return 1;
369 }
370
371 return 0;
372}
373
374
620c7837 375static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
6fc6879b
JM		 376 struct wpa_ssid *ssid)
377{
86bd1410 378 int privacy = 0;
6fc6879b
JM		 379
380 if (ssid->mixed_cell)
381 return 1;
382
0632542b
AT		 383#ifdef CONFIG_WPS
384 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
385 return 1;
386#endif /* CONFIG_WPS */
387
86bd1410
JM		 388 if (has_wep_key(ssid))
389 privacy = 1;
390
6fc6879b
JM		 391#ifdef IEEE8021X_EAPOL
392 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
393 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
394 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
395 privacy = 1;
396#endif /* IEEE8021X_EAPOL */
397
29fbc522
JM		 398 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
399 privacy = 1;
400
6fc6879b
JM		 401 if (bss->caps & IEEE80211_CAP_PRIVACY)
402 return privacy;
403 return !privacy;
404}
405
406
a6099152
JM		 407static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
408 struct wpa_ssid *ssid,
620c7837 409 struct wpa_bss *bss)
6fc6879b
JM		 410{
411 struct wpa_ie_data ie;
412 int proto_match = 0;
413 const u8 *rsn_ie, *wpa_ie;
351f09a2 414 int ret;
43882f1e 415 int wep_ok;
6fc6879b 416
a6099152 417 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
351f09a2
JM		 418 if (ret >= 0)
419 return ret;
ad08c363 420
43882f1e
JM		 421 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
422 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
423 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
424 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
425 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
426
620c7837 427 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
6fc6879b
JM		 428 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
429 proto_match++;
430
431 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
f049052b
BG		 432 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
433 "failed");
6fc6879b
JM		 434 break;
435 }
43882f1e
JM		 436
437 if (wep_ok &&
438 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
439 {
f049052b
BG		 440 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
441 "in RSN IE");
43882f1e
JM		 442 return 1;
443 }
444
6fc6879b 445 if (!(ie.proto & ssid->proto)) {
f049052b
BG		 446 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
447 "mismatch");
6fc6879b
JM		 448 break;
449 }
450
451 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
f049052b
BG		 452 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
453 "cipher mismatch");
6fc6879b
JM		 454 break;
455 }
456
457 if (!(ie.group_cipher & ssid->group_cipher)) {
f049052b
BG		 458 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
459 "cipher mismatch");
6fc6879b
JM		 460 break;
461 }
462
463 if (!(ie.key_mgmt & ssid->key_mgmt)) {
f049052b
BG		 464 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
465 "mismatch");
6fc6879b
JM		 466 break;
467 }
468
469#ifdef CONFIG_IEEE80211W
0b60b0aa 470 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
62d49803
JM		 471 (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ?
472 wpa_s->conf->pmf : ssid->ieee80211w) ==
473 MGMT_FRAME_PROTECTION_REQUIRED) {
f049052b
BG		 474 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
475 "frame protection");
6fc6879b
JM		 476 break;
477 }
478#endif /* CONFIG_IEEE80211W */
479
f049052b 480 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
6fc6879b
JM		 481 return 1;
482 }
483
620c7837 484 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
6fc6879b
JM		 485 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
486 proto_match++;
487
488 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
f049052b
BG		 489 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
490 "failed");
6fc6879b
JM		 491 break;
492 }
43882f1e
JM		 493
494 if (wep_ok &&
495 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
496 {
f049052b
BG		 497 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
498 "in WPA IE");
43882f1e
JM		 499 return 1;
500 }
501
6fc6879b 502 if (!(ie.proto & ssid->proto)) {
f049052b
BG		 503 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
504 "mismatch");
6fc6879b
JM		 505 break;
506 }
507
508 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
f049052b
BG		 509 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
510 "cipher mismatch");
6fc6879b
JM		 511 break;
512 }
513
514 if (!(ie.group_cipher & ssid->group_cipher)) {
f049052b
BG		 515 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
516 "cipher mismatch");
6fc6879b
JM		 517 break;
518 }
519
520 if (!(ie.key_mgmt & ssid->key_mgmt)) {
f049052b
BG		 521 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
522 "mismatch");
6fc6879b
JM		 523 break;
524 }
525
f049052b 526 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
6fc6879b
JM		 527 return 1;
528 }
529
a3f7e518
JM		 530 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
531 !rsn_ie) {
532 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
533 return 1;
534 }
535
cc5e390d 536 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
df83fb7d 537 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
f049052b 538 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
cc5e390d
JM		 539 return 0;
540 }
6fc6879b 541
c2f1fe41
JM		 542 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
543 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
544 return 1;
545 }
546
547 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
548 "WPA/WPA2");
549
550 return 0;
6fc6879b
JM		 551}
552
553
b766a9a2
JM		 554static int freq_allowed(int *freqs, int freq)
555{
556 int i;
557
558 if (freqs == NULL)
559 return 1;
560
561 for (i = 0; freqs[i]; i++)
562 if (freqs[i] == freq)
563 return 1;
564 return 0;
565}
566
567
e1e8cae3
CL		 568static int ht_supported(const struct hostapd_hw_modes *mode)
569{
570 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) {
571 /*
572 * The driver did not indicate whether it supports HT. Assume
573 * it does to avoid connection issues.
574 */
575 return 1;
576 }
577
578 /*
579 * IEEE Std 802.11n-2009 20.1.1:
580 * An HT non-AP STA shall support all EQM rates for one spatial stream.
581 */
582 return mode->mcs_set[0] == 0xff;
583}
584
585
c8ebeda4
MK		 586static int vht_supported(const struct hostapd_hw_modes *mode)
587{
588 if (!(mode->flags & HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN)) {
589 /*
590 * The driver did not indicate whether it supports VHT. Assume
591 * it does to avoid connection issues.
592 */
593 return 1;
594 }
595
596 /*
597 * A VHT non-AP STA shall support MCS 0-7 for one spatial stream.
598 * TODO: Verify if this complies with the standard
599 */
600 return (mode->vht_mcs_set[0] & 0x3) != 3;
601}
602
603
620c7837 604static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
e1e8cae3
CL		 605{
606 const struct hostapd_hw_modes *mode = NULL, *modes;
607 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
608 const u8 *rate_ie;
609 int i, j, k;
610
a6d94e1b
JM		 611 if (bss->freq == 0)
612 return 1; /* Cannot do matching without knowing band */
613
e1e8cae3
CL		 614 modes = wpa_s->hw.modes;
615 if (modes == NULL) {
616 /*
617 * The driver does not provide any additional information
618 * about the utilized hardware, so allow the connection attempt
619 * to continue.
620 */
621 return 1;
622 }
623
624 for (i = 0; i < wpa_s->hw.num_modes; i++) {
625 for (j = 0; j < modes[i].num_channels; j++) {
626 int freq = modes[i].channels[j].freq;
627 if (freq == bss->freq) {
628 if (mode &&
629 mode->mode == HOSTAPD_MODE_IEEE80211G)
630 break; /* do not allow 802.11b replace
631 * 802.11g */
632 mode = &modes[i];
633 break;
634 }
635 }
636 }
637
638 if (mode == NULL)
639 return 0;
640
641 for (i = 0; i < (int) sizeof(scan_ie); i++) {
620c7837 642 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
e1e8cae3
CL		 643 if (rate_ie == NULL)
644 continue;
645
646 for (j = 2; j < rate_ie[1] + 2; j++) {
647 int flagged = !!(rate_ie[j] & 0x80);
648 int r = (rate_ie[j] & 0x7f) * 5;
649
650 /*
651 * IEEE Std 802.11n-2009 7.3.2.2:
652 * The new BSS Membership selector value is encoded
653 * like a legacy basic rate, but it is not a rate and
654 * only indicates if the BSS members are required to
655 * support the mandatory features of Clause 20 [HT PHY]
656 * in order to join the BSS.
657 */
658 if (flagged && ((rate_ie[j] & 0x7f) ==
659 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
660 if (!ht_supported(mode)) {
661 wpa_dbg(wpa_s, MSG_DEBUG,
662 " hardware does not support "
663 "HT PHY");
664 return 0;
665 }
666 continue;
667 }
668
c8ebeda4
MK		 669 /* There's also a VHT selector for 802.11ac */
670 if (flagged && ((rate_ie[j] & 0x7f) ==
671 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
672 if (!vht_supported(mode)) {
673 wpa_dbg(wpa_s, MSG_DEBUG,
674 " hardware does not support "
675 "VHT PHY");
676 return 0;
677 }
678 continue;
679 }
680
e1e8cae3
CL		 681 if (!flagged)
682 continue;
683
684 /* check for legacy basic rates */
685 for (k = 0; k < mode->num_rates; k++) {
686 if (mode->rates[k] == r)
687 break;
688 }
689 if (k == mode->num_rates) {
690 /*
691 * IEEE Std 802.11-2007 7.3.2.2 demands that in
692 * order to join a BSS all required rates
693 * have to be supported by the hardware.
694 */
695 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does "
696 "not support required rate %d.%d Mbps",
697 r / 10, r % 10);
698 return 0;
699 }
700 }
701 }
702
703 return 1;
704}
705
706
ff3ad3c5
VK		 707static int bss_is_dmg(struct wpa_bss *bss)
708{
709 return bss->freq > 45000;
710}
711
712
713/*
714 * Test whether BSS is in an ESS.
715 * This is done differently in DMG (60 GHz) and non-DMG bands
716 */
717static int bss_is_ess(struct wpa_bss *bss)
718{
719 if (bss_is_dmg(bss)) {
720 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
721 IEEE80211_CAP_DMG_AP;
722 }
723
724 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
725 IEEE80211_CAP_ESS);
726}
727
728
d8d940b7 729static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
620c7837 730 int i, struct wpa_bss *bss,
3d910ef4
JM		 731 struct wpa_ssid *group,
732 int only_first_ssid)
6fc6879b 733{
620c7837 734 u8 wpa_ie_len, rsn_ie_len;
d8d940b7 735 int wpa;
6fc6879b
JM		 736 struct wpa_blacklist *e;
737 const u8 *ie;
d8d940b7 738 struct wpa_ssid *ssid;
6fc6879b 739
620c7837 740 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
d8d940b7 741 wpa_ie_len = ie ? ie[1] : 0;
6fc6879b 742
620c7837 743 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
d8d940b7 744 rsn_ie_len = ie ? ie[1] : 0;
6fc6879b 745
f049052b 746 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
b16696ff 747 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s%s",
620c7837 748 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
f049052b 749 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
b16696ff
JM		 750 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "",
751 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
752 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ?
753 " p2p" : "");
9cf32261 754
d8d940b7 755 e = wpa_blacklist_get(wpa_s, bss->bssid);
5471c343
JM		 756 if (e) {
757 int limit = 1;
349493bd 758 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
5471c343
JM		 759 /*
760 * When only a single network is enabled, we can
761 * trigger blacklisting on the first failure. This
762 * should not be done with multiple enabled networks to
763 * avoid getting forced to move into a worse ESS on
764 * single error if there are no other BSSes of the
765 * current ESS.
766 */
767 limit = 0;
768 }
769 if (e->count > limit) {
f049052b
BG		 770 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
771 "(count=%d limit=%d)", e->count, limit);
c2197bc9 772 return NULL;
5471c343 773 }
d8d940b7 774 }
6fc6879b 775
620c7837 776 if (bss->ssid_len == 0) {
f049052b 777 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
c2197bc9 778 return NULL;
d8d940b7 779 }
e81634cd 780
6407f413
JM		 781 if (disallowed_bssid(wpa_s, bss->bssid)) {
782 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
783 return NULL;
784 }
785
786 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
787 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
788 return NULL;
789 }
790
d8d940b7 791 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
6fc6879b 792
3d910ef4 793 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
d8d940b7 794 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
00e5e3d5 795 int res;
ad08c363 796
349493bd 797 if (wpas_network_disabled(wpa_s, ssid)) {
f049052b 798 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
0c703df3 799 continue;
d8d940b7 800 }
9cf32261 801
00e5e3d5
JM		 802 res = wpas_temp_disabled(wpa_s, ssid);
803 if (res > 0) {
804 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
805 "temporarily for %d second(s)", res);
806 continue;
807 }
808
ad08c363 809#ifdef CONFIG_WPS
f648bc7d 810 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
f049052b
BG		 811 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
812 "(WPS)");
f648bc7d
JM		 813 continue;
814 }
815
d8d940b7
JM		 816 if (wpa && ssid->ssid_len == 0 &&
817 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
818 check_ssid = 0;
819
820 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
821 /* Only allow wildcard SSID match if an AP
822 * advertises active WPS operation that matches
823 * with our mode. */
824 check_ssid = 1;
ad08c363 825 if (ssid->ssid_len == 0 &&
a6099152 826 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
ad08c363 827 check_ssid = 0;
d8d940b7 828 }
ad08c363
JM		 829#endif /* CONFIG_WPS */
830
7d232e23
ZC		 831 if (ssid->bssid_set && ssid->ssid_len == 0 &&
832 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
833 check_ssid = 0;
834
d8d940b7 835 if (check_ssid &&
620c7837
JM		 836 (bss->ssid_len != ssid->ssid_len ||
837 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
f049052b 838 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
0c703df3 839 continue;
6fc6879b 840 }
6fc6879b 841
d8d940b7
JM		 842 if (ssid->bssid_set &&
843 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
f049052b 844 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
0c703df3 845 continue;
d8d940b7 846 }
6fc6879b 847
cc5e390d 848 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
0c703df3 849 continue;
9cf32261 850
d8d940b7
JM		 851 if (!wpa &&
852 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
853 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
854 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
f049052b
BG		 855 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
856 "not allowed");
0c703df3 857 continue;
6fc6879b 858 }
9cf32261 859
86bd1410
JM		 860 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
861 has_wep_key(ssid)) {
862 wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block");
863 continue;
864 }
865
29fbc522 866 if (!wpa_supplicant_match_privacy(bss, ssid)) {
f049052b
BG		 867 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
868 "mismatch");
0c703df3 869 continue;
e81634cd
JM		 870 }
871
ff3ad3c5
VK		 872 if (!bss_is_ess(bss)) {
873 wpa_dbg(wpa_s, MSG_DEBUG, " skip - not ESS network");
0c703df3 874 continue;
d8d940b7 875 }
b766a9a2 876
d8d940b7 877 if (!freq_allowed(ssid->freq_list, bss->freq)) {
f049052b
BG		 878 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
879 "allowed");
0c703df3 880 continue;
6fc6879b 881 }
d8d940b7 882
e1e8cae3
CL		 883 if (!rate_match(wpa_s, bss)) {
884 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
885 "not match");
886 continue;
887 }
888
73e49269 889#ifdef CONFIG_P2P
b72e14e5
JM		 890 if (ssid->p2p_group &&
891 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
892 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
893 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen");
894 continue;
895 }
896
9ec87666
JM		 897 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
898 struct wpabuf *p2p_ie;
899 u8 dev_addr[ETH_ALEN];
900
901 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
902 if (ie == NULL) {
903 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element");
904 continue;
905 }
906 p2p_ie = wpa_bss_get_vendor_ie_multi(
907 bss, P2P_IE_VENDOR_TYPE);
908 if (p2p_ie == NULL) {
909 wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element");
910 continue;
911 }
912
913 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
914 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
915 ETH_ALEN) != 0) {
916 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element");
917 wpabuf_free(p2p_ie);
918 continue;
919 }
920 wpabuf_free(p2p_ie);
921 }
922
73e49269
JM		 923 /*
924 * TODO: skip the AP if its P2P IE has Group Formation
925 * bit set in the P2P Group Capability Bitmap and we
926 * are not in Group Formation with that device.
927 */
928#endif /* CONFIG_P2P */
929
d8d940b7
JM		 930 /* Matching configuration found */
931 return ssid;
6fc6879b
JM		 932 }
933
d8d940b7 934 /* No matching configuration found */
c2197bc9 935 return NULL;
9cf32261
JM		 936}
937
938
6fa81a3b 939static struct wpa_bss *
a1fd2ce5 940wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
a1fd2ce5 941 struct wpa_ssid *group,
3d910ef4
JM		 942 struct wpa_ssid **selected_ssid,
943 int only_first_ssid)
9cf32261 944{
620c7837 945 unsigned int i;
9cf32261 946
3d910ef4
JM		 947 if (only_first_ssid)
948 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
949 group->id);
950 else
951 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
952 group->priority);
9cf32261 953
620c7837
JM		 954 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
955 struct wpa_bss *bss = wpa_s->last_scan_res[i];
3d910ef4
JM		 956 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
957 only_first_ssid);
d8d940b7
JM		 958 if (!*selected_ssid)
959 continue;
f049052b
BG		 960 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
961 " ssid='%s'",
620c7837
JM		 962 MAC2STR(bss->bssid),
963 wpa_ssid_txt(bss->ssid, bss->ssid_len));
964 return bss;
d8d940b7
JM		 965 }
966
967 return NULL;
6fc6879b
JM		 968}
969
970
97236cee
MH		 971struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
972 struct wpa_ssid **selected_ssid)
6fc6879b 973{
6fa81a3b 974 struct wpa_bss *selected = NULL;
09b9df4e
JM		 975 int prio;
976
620c7837
JM		 977 if (wpa_s->last_scan_res == NULL ||
978 wpa_s->last_scan_res_used == 0)
979 return NULL; /* no scan results from last update */
980
09b9df4e 981 while (selected == NULL) {
3d910ef4
JM		 982 if (wpa_s->next_ssid) {
983 struct wpa_ssid *ssid;
984
985 /* check that next_ssid is still valid */
986 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
987 if (ssid == wpa_s->next_ssid)
988 break;
989 wpa_s->next_ssid = NULL;
990
991 if (ssid) {
992 selected = wpa_supplicant_select_bss(
993 wpa_s, ssid, selected_ssid, 1);
994 if (selected)
995 break;
996 }
997 }
998
09b9df4e
JM		 999 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1000 selected = wpa_supplicant_select_bss(
620c7837 1001 wpa_s, wpa_s->conf->pssid[prio],
3d910ef4 1002 selected_ssid, 0);
09b9df4e
JM		 1003 if (selected)
1004 break;
1005 }
1006
8945cc45
BM		 1007 if (selected == NULL && wpa_s->blacklist &&
1008 !wpa_s->countermeasures) {
f049052b
BG		 1009 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1010 "blacklist and try again");
09b9df4e
JM		 1011 wpa_blacklist_clear(wpa_s);
1012 wpa_s->blacklist_cleared++;
1013 } else if (selected == NULL)
1014 break;
1015 }
1016
1017 return selected;
1018}
1019
1020
1021static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
977b1174 1022 int timeout_sec, int timeout_usec)
09b9df4e 1023{
349493bd 1024 if (!wpa_supplicant_enabled_networks(wpa_s)) {
4f34d51a
SL		 1025 /*
1026 * No networks are enabled; short-circuit request so
1027 * we don't wait timeout seconds before transitioning
1028 * to INACTIVE state.
1029 */
ac06fb12
JM		 1030 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1031 "since there are no enabled networks");
4f34d51a
SL		 1032 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1033 return;
09b9df4e 1034 }
5cc70322
JM		 1035
1036 wpa_s->scan_for_connection = 1;
977b1174 1037 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
09b9df4e
JM		 1038}
1039
1040
5cbd88d9
JJ		 1041int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1042 struct wpa_bss *selected,
1043 struct wpa_ssid *ssid)
09b9df4e
JM		 1044{
1045 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1046 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1047 "PBC session overlap");
b73bf0a7
JM		 1048#ifdef CONFIG_P2P
1049 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
5cbd88d9 1050 return -1;
b73bf0a7 1051#endif /* CONFIG_P2P */
199716ad
BG		 1052
1053#ifdef CONFIG_WPS
7736f18b 1054 wpas_wps_cancel(wpa_s);
199716ad 1055#endif /* CONFIG_WPS */
5cbd88d9 1056 return -1;
09b9df4e
JM		 1057 }
1058
b0680017
JM		 1059 wpa_msg(wpa_s, MSG_DEBUG,
1060 "Considering connect request: reassociate: %d selected: "
1061 MACSTR " bssid: " MACSTR " pending: " MACSTR
1062 " wpa_state: %s ssid=%p current_ssid=%p",
1063 wpa_s->reassociate, MAC2STR(selected->bssid),
1064 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1065 wpa_supplicant_state_txt(wpa_s->wpa_state),
1066 ssid, wpa_s->current_ssid);
1067
09b9df4e
JM		 1068 /*
1069 * Do not trigger new association unless the BSSID has changed or if
1070 * reassociation is requested. If we are in process of associating with
1071 * the selected BSSID, do not trigger new attempt.
1072 */
1073 if (wpa_s->reassociate ||
1074 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
e29853bb
BG		 1075 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1076 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
b0680017
JM		 1077 (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1078 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1079 0) ||
1080 (is_zero_ether_addr(wpa_s->pending_bssid) &&
1081 ssid != wpa_s->current_ssid)))) {
09b9df4e 1082 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
977b1174 1083 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
5cbd88d9 1084 return 0;
09b9df4e 1085 }
b0680017
JM		 1086 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1087 MAC2STR(selected->bssid));
09b9df4e
JM		 1088 wpa_supplicant_associate(wpa_s, selected, ssid);
1089 } else {
b0680017
JM		 1090 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1091 "connect with the selected AP");
09b9df4e 1092 }
5cbd88d9
JJ		 1093
1094 return 0;
09b9df4e
JM		 1095}
1096
1097
b55aaa5f
JM		 1098static struct wpa_ssid *
1099wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1100{
1101 int prio;
1102 struct wpa_ssid *ssid;
1103
1104 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1105 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1106 {
349493bd 1107 if (wpas_network_disabled(wpa_s, ssid))
b55aaa5f
JM		 1108 continue;
1109 if (ssid->mode == IEEE80211_MODE_IBSS ||
1110 ssid->mode == IEEE80211_MODE_AP)
1111 return ssid;
1112 }
1113 }
1114 return NULL;
1115}
1116
1117
a1fd2ce5
JM		 1118/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1119 * on BSS added and BSS changed events */
6ae93185 1120static void wpa_supplicant_rsn_preauth_scan_results(
6d28fb96 1121 struct wpa_supplicant *wpa_s)
6ae93185 1122{
6d28fb96 1123 struct wpa_bss *bss;
6ae93185
JM		 1124
1125 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1126 return;
1127
6d28fb96 1128 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
6ae93185 1129 const u8 *ssid, *rsn;
6ae93185 1130
6d28fb96 1131 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
6ae93185
JM		 1132 if (ssid == NULL)
1133 continue;
1134
6d28fb96 1135 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
6ae93185
JM		 1136 if (rsn == NULL)
1137 continue;
1138
6d28fb96 1139 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
6ae93185
JM		 1140 }
1141
1142}
1143
1144
48563d86
JM		 1145static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1146 struct wpa_bss *selected,
20ed5e40 1147 struct wpa_ssid *ssid)
48563d86 1148{
20ed5e40 1149 struct wpa_bss *current_bss = NULL;
48563d86
JM		 1150 int min_diff;
1151
1152 if (wpa_s->reassociate)
1153 return 1; /* explicit request to reassociate */
1154 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1155 return 1; /* we are not associated; continue */
1156 if (wpa_s->current_ssid == NULL)
1157 return 1; /* unknown current SSID */
1158 if (wpa_s->current_ssid != ssid)
1159 return 1; /* different network block */
1160
22628eca
JM		 1161 if (wpas_driver_bss_selection(wpa_s))
1162 return 0; /* Driver-based roaming */
1163
20ed5e40
JM		 1164 if (wpa_s->current_ssid->ssid)
1165 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1166 wpa_s->current_ssid->ssid,
1167 wpa_s->current_ssid->ssid_len);
1168 if (!current_bss)
1169 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
48563d86
JM		 1170
1171 if (!current_bss)
1172 return 1; /* current BSS not seen in scan results */
1173
20ed5e40
JM		 1174 if (current_bss == selected)
1175 return 0;
1176
1177 if (selected->last_update_idx > current_bss->last_update_idx)
1178 return 1; /* current BSS not seen in the last scan */
1179
e9af53ad 1180#ifndef CONFIG_NO_ROAMING
f049052b
BG		 1181 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1182 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
1183 MAC2STR(current_bss->bssid), current_bss->level);
1184 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
1185 MAC2STR(selected->bssid), selected->level);
48563d86 1186
ac26ebd8
JM		 1187 if (wpa_s->current_ssid->bssid_set &&
1188 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1189 0) {
f049052b
BG		 1190 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1191 "has preferred BSSID");
ac26ebd8
JM		 1192 return 1;
1193 }
1194
bff954e9
RS		 1195 if (current_bss->level < 0 && current_bss->level > selected->level) {
1196 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1197 "signal level");
1198 return 0;
1199 }
1200
48563d86
JM		 1201 min_diff = 2;
1202 if (current_bss->level < 0) {
1203 if (current_bss->level < -85)
1204 min_diff = 1;
1205 else if (current_bss->level < -80)
1206 min_diff = 2;
1207 else if (current_bss->level < -75)
1208 min_diff = 3;
1209 else if (current_bss->level < -70)
1210 min_diff = 4;
1211 else
1212 min_diff = 5;
1213 }
1214 if (abs(current_bss->level - selected->level) < min_diff) {
f049052b
BG		 1215 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1216 "in signal level");
48563d86
JM		 1217 return 0;
1218 }
1219
1220 return 1;
e9af53ad
DS		 1221#else /* CONFIG_NO_ROAMING */
1222 return 0;
1223#endif /* CONFIG_NO_ROAMING */
48563d86
JM		 1224}
1225
cd2f4ddf 1226
0dd54313 1227/* Return != 0 if no scan results could be fetched or if scan results should not
10ac7ddf 1228 * be shared with other virtual interfaces. */
e1504976 1229static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
cfd31b50
JM		 1230 union wpa_event_data *data,
1231 int own_request)
09b9df4e 1232{
d12a51b5
JM		 1233 struct wpa_scan_results *scan_res = NULL;
1234 int ret = 0;
5bc0cdb7 1235 int ap = 0;
7b1aa4fe
JM		 1236#ifndef CONFIG_NO_RANDOM_POOL
1237 size_t i, num;
1238#endif /* CONFIG_NO_RANDOM_POOL */
5bc0cdb7
JM		 1239
1240#ifdef CONFIG_AP
1241 if (wpa_s->ap_iface)
1242 ap = 1;
1243#endif /* CONFIG_AP */
6fc6879b 1244
cb8564b1
DW		 1245 wpa_supplicant_notify_scanning(wpa_s, 0);
1246
a1fd2ce5
JM		 1247 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1248 data ? &data->scan_info :
1249 NULL, 1);
1250 if (scan_res == NULL) {
66fe0f70
DS		 1251 if (wpa_s->conf->ap_scan == 2 || ap ||
1252 wpa_s->scan_res_handler == scan_only_handler)
e1504976 1253 return -1;
cfd31b50
JM		 1254 if (!own_request)
1255 return -1;
f049052b
BG		 1256 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1257 "scanning again");
977b1174 1258 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
d12a51b5
JM		 1259 ret = -1;
1260 goto scan_work_done;
6fc6879b
JM		 1261 }
1262
bbb921da 1263#ifndef CONFIG_NO_RANDOM_POOL
bbb921da
JM		 1264 num = scan_res->num;
1265 if (num > 10)
1266 num = 10;
1267 for (i = 0; i < num; i++) {
1268 u8 buf[5];
1269 struct wpa_scan_res *res = scan_res->res[i];
1270 buf[0] = res->bssid[5];
1271 buf[1] = res->qual & 0xff;
1272 buf[2] = res->noise & 0xff;
1273 buf[3] = res->level & 0xff;
1274 buf[4] = res->tsf & 0xff;
1275 random_add_randomness(buf, sizeof(buf));
1276 }
1277#endif /* CONFIG_NO_RANDOM_POOL */
1278
06f9acce
JM		 1279 if (own_request && wpa_s->scan_res_handler &&
1280 (wpa_s->own_scan_running || !wpa_s->external_scan_running)) {
860fddbb
JB		 1281 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1282 struct wpa_scan_results *scan_res);
1283
1284 scan_res_handler = wpa_s->scan_res_handler;
64e58f51 1285 wpa_s->scan_res_handler = NULL;
860fddbb 1286 scan_res_handler(wpa_s, scan_res);
d12a51b5
JM		 1287 ret = -2;
1288 goto scan_work_done;
64e58f51
JM		 1289 }
1290
5bc0cdb7 1291 if (ap) {
f049052b 1292 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
c202f19c
JB		 1293#ifdef CONFIG_AP
1294 if (wpa_s->ap_iface->scan_cb)
1295 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1296#endif /* CONFIG_AP */
d12a51b5 1297 goto scan_work_done;
5bc0cdb7
JM		 1298 }
1299
a5f40eff
JM		 1300 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1301 wpa_s->own_scan_running, wpa_s->external_scan_running);
d81c73be
JM		 1302 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1303 wpa_s->manual_scan_use_id && wpa_s->own_scan_running) {
1304 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1305 wpa_s->manual_scan_id);
1306 wpa_s->manual_scan_use_id = 0;
1307 } else {
1308 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1309 }
24f76940 1310 wpas_notify_scan_results(wpa_s);
6fc6879b 1311
8bac466b
JM		 1312 wpas_notify_scan_done(wpa_s, 1);
1313
015af91f
JM		 1314 if (!wpa_s->own_scan_running && wpa_s->external_scan_running) {
1315 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1316 wpa_scan_results_free(scan_res);
1317 return 0;
1318 }
1319
d12a51b5
JM		 1320 if (sme_proc_obss_scan(wpa_s) > 0)
1321 goto scan_work_done;
c3701c66 1322
d12a51b5
JM		 1323 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1324 goto scan_work_done;
6fc6879b 1325
d12a51b5
JM		 1326 if (autoscan_notify_scan(wpa_s, scan_res))
1327 goto scan_work_done;
7c865c68 1328
3180d7a2
SO		 1329 if (wpa_s->disconnected) {
1330 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
d12a51b5 1331 goto scan_work_done;
3180d7a2
SO		 1332 }
1333
22628eca 1334 if (!wpas_driver_bss_selection(wpa_s) &&
d12a51b5
JM		 1335 bgscan_notify_scan(wpa_s, scan_res) == 1)
1336 goto scan_work_done;
a1fd2ce5 1337
f9f0526b
JM		 1338 wpas_wps_update_ap_info(wpa_s, scan_res);
1339
20ed5e40
JM		 1340 wpa_scan_results_free(scan_res);
1341
d12a51b5
JM		 1342 if (wpa_s->scan_work) {
1343 struct wpa_radio_work *work = wpa_s->scan_work;
1344 wpa_s->scan_work = NULL;
1345 radio_work_done(work);
1346 }
1347
cc4952ad 1348 return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
d12a51b5
JM		 1349
1350scan_work_done:
1351 wpa_scan_results_free(scan_res);
1352 if (wpa_s->scan_work) {
1353 struct wpa_radio_work *work = wpa_s->scan_work;
1354 wpa_s->scan_work = NULL;
1355 radio_work_done(work);
1356 }
1357 return ret;
a594e2a9
JM		 1358}
1359
1360
06b7f58d 1361static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
cc4952ad 1362 int new_scan, int own_request)
a594e2a9
JM		 1363{
1364 struct wpa_bss *selected;
1365 struct wpa_ssid *ssid = NULL;
1366
620c7837
JM		 1367 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1368
6fc6879b 1369 if (selected) {
48563d86 1370 int skip;
20ed5e40 1371 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1bbff09e 1372 if (skip) {
06b7f58d
JM		 1373 if (new_scan)
1374 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
e1504976 1375 return 0;
1bbff09e 1376 }
5cbd88d9
JJ		 1377
1378 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1379 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1380 return -1;
1381 }
06b7f58d
JM		 1382 if (new_scan)
1383 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
0dd54313
JM		 1384 /*
1385 * Do not notify other virtual radios of scan results since we do not
1386 * want them to start other associations at the same time.
1387 */
1388 return 1;
6fc6879b 1389 } else {
f049052b 1390 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
b55aaa5f
JM		 1391 ssid = wpa_supplicant_pick_new_network(wpa_s);
1392 if (ssid) {
f049052b 1393 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
b55aaa5f 1394 wpa_supplicant_associate(wpa_s, NULL, ssid);
06b7f58d
JM		 1395 if (new_scan)
1396 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
cc4952ad
JJ		 1397 } else if (own_request) {
1398 /*
1399 * No SSID found. If SCAN results are as a result of
1400 * own scan request and not due to a scan request on
1401 * another shared interface, try another scan.
1402 */
67b9bd08 1403 int timeout_sec = wpa_s->scan_interval;
977b1174 1404 int timeout_usec = 0;
0817de90 1405#ifdef CONFIG_P2P
aa9bb764
JM		 1406 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1)
1407 return 0;
1408
6fc48481
RR		 1409 if (wpa_s->p2p_in_provisioning ||
1410 wpa_s->show_group_started) {
0817de90
JM		 1411 /*
1412 * Use shorter wait during P2P Provisioning
6fc48481
RR		 1413 * state and during P2P join-a-group operation
1414 * to speed up group formation.
0817de90
JM		 1415 */
1416 timeout_sec = 0;
1417 timeout_usec = 250000;
a4cba8f1
LC		 1418 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1419 timeout_usec);
1420 return 0;
0817de90
JM		 1421 }
1422#endif /* CONFIG_P2P */
4d5bda5f
JM		 1423#ifdef CONFIG_INTERWORKING
1424 if (wpa_s->conf->auto_interworking &&
1425 wpa_s->conf->interworking &&
1426 wpa_s->conf->cred) {
1427 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1428 "start ANQP fetch since no matching "
1429 "networks found");
1430 wpa_s->network_select = 1;
1431 wpa_s->auto_network_select = 1;
1432 interworking_start_fetch_anqp(wpa_s);
0dd54313 1433 return 1;
4d5bda5f
JM		 1434 }
1435#endif /* CONFIG_INTERWORKING */
662b40b1 1436#ifdef CONFIG_WPS
538d6f4b 1437 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
662b40b1
JM		 1438 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1439 timeout_sec = 0;
1440 timeout_usec = 500000;
1441 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1442 timeout_usec);
1443 return 0;
1444 }
1445#endif /* CONFIG_WPS */
a4cba8f1
LC		 1446 if (wpa_supplicant_req_sched_scan(wpa_s))
1447 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1448 timeout_usec);
977b1174 1449 }
6fc6879b 1450 }
e1504976 1451 return 0;
6fc6879b 1452}
6859f1cb
BG		 1453
1454
1455static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1456 union wpa_event_data *data)
1457{
6859f1cb
BG		 1458 struct wpa_supplicant *ifs;
1459
cfd31b50 1460 if (_wpa_supplicant_event_scan_results(wpa_s, data, 1) != 0) {
e1504976
BG		 1461 /*
1462 * If no scan results could be fetched, then no need to
1463 * notify those interfaces that did not actually request
0dd54313
JM		 1464 * this scan. Similarly, if scan results started a new operation on this
1465 * interface, do not notify other interfaces to avoid concurrent
1466 * operations during a connection attempt.
e1504976
BG		 1467 */
1468 return;
1469 }
6859f1cb
BG		 1470
1471 /*
f88f19b4 1472 * Check other interfaces to see if they share the same radio. If
6859f1cb
BG		 1473 * so, they get updated with this same scan info.
1474 */
f88f19b4
JM		 1475 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1476 radio_list) {
1477 if (ifs != wpa_s) {
6859f1cb
BG		 1478 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1479 "sibling", ifs->ifname);
cfd31b50 1480 _wpa_supplicant_event_scan_results(ifs, data, 0);
6859f1cb
BG		 1481 }
1482 }
1483}
1484
6fc6879b
JM		 1485#endif /* CONFIG_NO_SCAN_PROCESSING */
1486
1487
cecdddc1
PS		 1488int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1489{
1490#ifdef CONFIG_NO_SCAN_PROCESSING
1491 return -1;
1492#else /* CONFIG_NO_SCAN_PROCESSING */
a12d3454 1493 struct os_reltime now;
cecdddc1
PS		 1494
1495 if (wpa_s->last_scan_res_used <= 0)
1496 return -1;
1497
a12d3454
JB		 1498 os_get_reltime(&now);
1499 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
cecdddc1
PS		 1500 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1501 return -1;
1502 }
1503
cc4952ad 1504 return wpas_select_network_from_last_scan(wpa_s, 0, 1);
cecdddc1
PS		 1505#endif /* CONFIG_NO_SCAN_PROCESSING */
1506}
1507
b6668734
JM		 1508#ifdef CONFIG_WNM
1509
1510static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1511{
1512 struct wpa_supplicant *wpa_s = eloop_ctx;
1513
1514 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1515 return;
1516
2ec535fd
JM		 1517 if (!wpa_s->no_keep_alive) {
1518 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1519 MAC2STR(wpa_s->bssid));
1520 /* TODO: could skip this if normal data traffic has been sent */
1521 /* TODO: Consider using some more appropriate data frame for
1522 * this */
1523 if (wpa_s->l2)
1524 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1525 (u8 *) "", 0);
1526 }
b6668734 1527
597c7a8d 1528#ifdef CONFIG_SME
b6668734
JM		 1529 if (wpa_s->sme.bss_max_idle_period) {
1530 unsigned int msec;
1531 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1532 if (msec > 100)
1533 msec -= 100;
1534 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1535 wnm_bss_keep_alive, wpa_s, NULL);
1536 }
597c7a8d 1537#endif /* CONFIG_SME */
b6668734
JM		 1538}
1539
1540
1541static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1542 const u8 *ies, size_t ies_len)
1543{
1544 struct ieee802_11_elems elems;
1545
1546 if (ies == NULL)
1547 return;
1548
1549 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1550 return;
1551
1552#ifdef CONFIG_SME
1553 if (elems.bss_max_idle_period) {
1554 unsigned int msec;
1555 wpa_s->sme.bss_max_idle_period =
1556 WPA_GET_LE16(elems.bss_max_idle_period);
1557 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1558 "TU)%s", wpa_s->sme.bss_max_idle_period,
1559 (elems.bss_max_idle_period[2] & 0x01) ?
1560 " (protected keep-live required)" : "");
1561 if (wpa_s->sme.bss_max_idle_period == 0)
1562 wpa_s->sme.bss_max_idle_period = 1;
1563 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1564 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1565 /* msec times 1000 */
1566 msec = wpa_s->sme.bss_max_idle_period * 1024;
1567 if (msec > 100)
1568 msec -= 100;
1569 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1570 wnm_bss_keep_alive, wpa_s,
1571 NULL);
1572 }
1573 }
1574#endif /* CONFIG_SME */
1575}
1576
1577#endif /* CONFIG_WNM */
1578
1579
1580void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1581{
1582#ifdef CONFIG_WNM
1583 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1584#endif /* CONFIG_WNM */
1585}
1586
1587
56f5af48
JM		 1588#ifdef CONFIG_INTERWORKING
1589
1590static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1591 size_t len)
1592{
1593 int res;
1594
1595 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1596 res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1597 if (res) {
1598 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1599 }
1600
1601 return res;
1602}
1603
1604
1605static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1606 const u8 *ies, size_t ies_len)
1607{
1608 struct ieee802_11_elems elems;
1609
1610 if (ies == NULL)
1611 return;
1612
1613 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1614 return;
1615
1616 if (elems.qos_map_set) {
1617 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1618 elems.qos_map_set_len);
1619 }
1620}
1621
1622#endif /* CONFIG_INTERWORKING */
1623
1624
579ce771
JM		 1625static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1626 union wpa_event_data *data)
6fc6879b
JM		 1627{
1628 int l, len, found = 0, wpa_found, rsn_found;
c2a04078 1629 const u8 *p;
b6714ca1 1630#ifdef CONFIG_IEEE80211R
6a1ce395 1631 u8 bssid[ETH_ALEN];
b6714ca1 1632#endif /* CONFIG_IEEE80211R */
6fc6879b 1633
f049052b 1634 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
6fc6879b
JM		 1635 if (data->assoc_info.req_ies)
1636 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1637 data->assoc_info.req_ies_len);
52c9e6f3 1638 if (data->assoc_info.resp_ies) {
6fc6879b
JM		 1639 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1640 data->assoc_info.resp_ies_len);
52c9e6f3
JM		 1641#ifdef CONFIG_TDLS
1642 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1643 data->assoc_info.resp_ies_len);
1644#endif /* CONFIG_TDLS */
b6668734
JM		 1645#ifdef CONFIG_WNM
1646 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1647 data->assoc_info.resp_ies_len);
1648#endif /* CONFIG_WNM */
56f5af48
JM		 1649#ifdef CONFIG_INTERWORKING
1650 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1651 data->assoc_info.resp_ies_len);
1652#endif /* CONFIG_INTERWORKING */
52c9e6f3 1653 }
6fc6879b
JM		 1654 if (data->assoc_info.beacon_ies)
1655 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1656 data->assoc_info.beacon_ies,
1657 data->assoc_info.beacon_ies_len);
4832ecd7 1658 if (data->assoc_info.freq)
f049052b
BG		 1659 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1660 data->assoc_info.freq);
6fc6879b
JM		 1661
1662 p = data->assoc_info.req_ies;
1663 l = data->assoc_info.req_ies_len;
1664
1665 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1666 while (p && l >= 2) {
1667 len = p[1] + 2;
1668 if (len > l) {
1669 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1670 p, l);
1671 break;
1672 }
1673 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1674 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1675 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1676 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1677 break;
1678 found = 1;
1679 wpa_find_assoc_pmkid(wpa_s);
1680 break;
1681 }
1682 l -= len;
1683 p += len;
1684 }
1685 if (!found && data->assoc_info.req_ies)
1686 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1687
c2a04078 1688#ifdef CONFIG_IEEE80211R
62c72d72
JM		 1689#ifdef CONFIG_SME
1690 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
62c72d72
JM		 1691 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1692 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1693 data->assoc_info.resp_ies,
1694 data->assoc_info.resp_ies_len,
1695 bssid) < 0) {
f049052b
BG		 1696 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1697 "Reassociation Response failed");
579ce771
JM		 1698 wpa_supplicant_deauthenticate(
1699 wpa_s, WLAN_REASON_INVALID_IE);
1700 return -1;
62c72d72
JM		 1701 }
1702 }
62c72d72 1703
c2a04078
JM		 1704 p = data->assoc_info.resp_ies;
1705 l = data->assoc_info.resp_ies_len;
1706
54f489be 1707#ifdef CONFIG_WPS_STRICT
5dac11e0 1708 if (p && wpa_s->current_ssid &&
54f489be
JM		 1709 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1710 struct wpabuf *wps;
1711 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1712 if (wps == NULL) {
f049052b
BG		 1713 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1714 "include WPS IE in (Re)Association Response");
54f489be
JM		 1715 return -1;
1716 }
1717
1718 if (wps_validate_assoc_resp(wps) < 0) {
1719 wpabuf_free(wps);
1720 wpa_supplicant_deauthenticate(
1721 wpa_s, WLAN_REASON_INVALID_IE);
1722 return -1;
1723 }
1724 wpabuf_free(wps);
1725 }
1726#endif /* CONFIG_WPS_STRICT */
1727
e7846b68 1728 /* Go through the IEs and make a copy of the MDIE, if present. */
c2a04078
JM		 1729 while (p && l >= 2) {
1730 len = p[1] + 2;
1731 if (len > l) {
1732 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1733 p, l);
1734 break;
1735 }
e7846b68
JM		 1736 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1737 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1738 wpa_s->sme.ft_used = 1;
1739 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1740 MOBILITY_DOMAIN_ID_LEN);
1741 break;
1742 }
c2a04078
JM		 1743 l -= len;
1744 p += len;
1745 }
e7846b68 1746#endif /* CONFIG_SME */
c2a04078 1747
6a1ce395
DG		 1748 /* Process FT when SME is in the driver */
1749 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
1750 wpa_ft_is_completed(wpa_s->wpa)) {
1751 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1752 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1753 data->assoc_info.resp_ies,
1754 data->assoc_info.resp_ies_len,
1755 bssid) < 0) {
1756 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1757 "Reassociation Response failed");
1758 wpa_supplicant_deauthenticate(
1759 wpa_s, WLAN_REASON_INVALID_IE);
1760 return -1;
1761 }
1762 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
1763 }
1764
e7846b68
JM		 1765 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1766 data->assoc_info.resp_ies_len);
c2a04078
JM		 1767#endif /* CONFIG_IEEE80211R */
1768
6fc6879b
JM		 1769 /* WPA/RSN IE from Beacon/ProbeResp */
1770 p = data->assoc_info.beacon_ies;
1771 l = data->assoc_info.beacon_ies_len;
1772
1773 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1774 */
1775 wpa_found = rsn_found = 0;
1776 while (p && l >= 2) {
1777 len = p[1] + 2;
1778 if (len > l) {
1779 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1780 p, l);
1781 break;
1782 }
1783 if (!wpa_found &&
1784 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1785 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1786 wpa_found = 1;
1787 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1788 }
1789
1790 if (!rsn_found &&
1791 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1792 rsn_found = 1;
1793 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1794 }
1795
1796 l -= len;
1797 p += len;
1798 }
1799
1800 if (!wpa_found && data->assoc_info.beacon_ies)
1801 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1802 if (!rsn_found && data->assoc_info.beacon_ies)
1803 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1804 if (wpa_found || rsn_found)
1805 wpa_s->ap_ies_from_associnfo = 1;
4832ecd7 1806
117e812d
JM		 1807 if (wpa_s->assoc_freq && data->assoc_info.freq &&
1808 wpa_s->assoc_freq != data->assoc_info.freq) {
1809 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1810 "%u to %u MHz",
1811 wpa_s->assoc_freq, data->assoc_info.freq);
1812 wpa_supplicant_update_scan_results(wpa_s);
1813 }
1814
4832ecd7 1815 wpa_s->assoc_freq = data->assoc_info.freq;
579ce771
JM		 1816
1817 return 0;
6fc6879b
JM		 1818}
1819
1820
ad9ee4d4
JM		 1821static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
1822{
1823 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
1824
1825 if (!wpa_s->current_bss || !wpa_s->current_ssid)
1826 return -1;
1827
1828 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
1829 return 0;
1830
1831 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
1832 WPA_IE_VENDOR_TYPE);
1833 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
1834
1835 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1836 bss_wpa ? 2 + bss_wpa[1] : 0) ||
1837 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1838 bss_rsn ? 2 + bss_rsn[1] : 0))
1839 return -1;
1840
1841 return 0;
1842}
1843
1844
6fc6879b
JM		 1845static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1846 union wpa_event_data *data)
1847{
1848 u8 bssid[ETH_ALEN];
1d041bec 1849 int ft_completed;
6fc6879b 1850
1d041bec
JM		 1851#ifdef CONFIG_AP
1852 if (wpa_s->ap_iface) {
1853 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1854 data->assoc_info.addr,
1855 data->assoc_info.req_ies,
39b08b5f
SP		 1856 data->assoc_info.req_ies_len,
1857 data->assoc_info.reassoc);
1d041bec
JM		 1858 return;
1859 }
1860#endif /* CONFIG_AP */
1861
1862 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
579ce771
JM		 1863 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1864 return;
6fc6879b 1865
0a0c38f6
MH		 1866 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
1867 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
07783eaa 1868 wpa_supplicant_deauthenticate(
0a0c38f6
MH		 1869 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1870 return;
1871 }
1872
6fc6879b 1873 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
0a0c38f6 1874 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
f049052b 1875 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
6fc6879b 1876 MACSTR, MAC2STR(bssid));
bbb921da 1877 random_add_randomness(bssid, ETH_ALEN);
6fc6879b
JM		 1878 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1879 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
e485286c 1880 wpas_notify_bssid_changed(wpa_s);
8bac466b 1881
6fc6879b
JM		 1882 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1883 wpa_clear_keys(wpa_s, bssid);
1884 }
1885 if (wpa_supplicant_select_config(wpa_s) < 0) {
07783eaa 1886 wpa_supplicant_deauthenticate(
6fc6879b
JM		 1887 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1888 return;
1889 }
cd2f4ddf
SM		 1890
1891 if (wpa_s->conf->ap_scan == 1 &&
1892 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
1893 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0)
1894 wpa_msg(wpa_s, MSG_WARNING,
1895 "WPA/RSN IEs not updated");
1896 }
6fc6879b
JM		 1897 }
1898
62fa124c
JM		 1899#ifdef CONFIG_SME
1900 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1901 wpa_s->sme.prev_bssid_set = 1;
1902#endif /* CONFIG_SME */
1903
6fc6879b
JM		 1904 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1905 if (wpa_s->current_ssid) {
1906 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1907 * initialized before association, but for other modes,
1908 * initialize PC/SC here, if the current configuration needs
1909 * smartcard or SIM/USIM. */
1910 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1911 }
1912 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
3f967fe0
JM		 1913 if (wpa_s->l2)
1914 l2_packet_notify_auth_start(wpa_s->l2);
6fc6879b
JM		 1915
1916 /*
1917 * Set portEnabled first to FALSE in order to get EAP state machine out
1918 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1919 * state machine may transit to AUTHENTICATING state based on obsolete
1920 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1921 * AUTHENTICATED without ever giving chance to EAP state machine to
1922 * reset the state.
1923 */
1924 if (!ft_completed) {
1925 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1926 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1927 }
56586197 1928 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
6fc6879b
JM		 1929 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1930 /* 802.1X::portControl = Auto */
1931 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1932 wpa_s->eapol_received = 0;
1933 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
9c972abb
JM		 1934 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1935 (wpa_s->current_ssid &&
1936 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
6ea1f413
JM		 1937 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
1938 (wpa_s->drv_flags &
1939 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
1940 /*
1941 * Set the key after having received joined-IBSS event
1942 * from the driver.
1943 */
1944 wpa_supplicant_set_wpa_none_key(wpa_s,
1945 wpa_s->current_ssid);
1946 }
6fc6879b
JM		 1947 wpa_supplicant_cancel_auth_timeout(wpa_s);
1948 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1949 } else if (!ft_completed) {
1950 /* Timeout for receiving the first EAPOL packet */
1951 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1952 }
1953 wpa_supplicant_cancel_scan(wpa_s);
1954
c2a04078 1955 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
56586197 1956 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
6fc6879b
JM		 1957 /*
1958 * We are done; the driver will take care of RSN 4-way
1959 * handshake.
1960 */
1961 wpa_supplicant_cancel_auth_timeout(wpa_s);
1962 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1963 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1964 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
98ea9431
JM		 1965 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1966 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1967 /*
1968 * The driver will take care of RSN 4-way handshake, so we need
1969 * to allow EAPOL supplicant to complete its work without
1970 * waiting for WPA supplicant.
1971 */
1972 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
16a83d29
JM		 1973 } else if (ft_completed) {
1974 /*
1975 * FT protocol completed - make sure EAPOL state machine ends
1976 * up in authenticated.
1977 */
1978 wpa_supplicant_cancel_auth_timeout(wpa_s);
1979 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1980 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1981 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
6fc6879b 1982 }
1ff73338 1983
3ab35a66
JM		 1984 wpa_s->last_eapol_matches_bssid = 0;
1985
1ff73338 1986 if (wpa_s->pending_eapol_rx) {
c2be937c
JB		 1987 struct os_reltime now, age;
1988 os_get_reltime(&now);
1989 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1ff73338
JM		 1990 if (age.sec == 0 && age.usec < 100000 &&
1991 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1992 0) {
f049052b
BG		 1993 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
1994 "frame that was received just before "
1995 "association notification");
1ff73338
JM		 1996 wpa_supplicant_rx_eapol(
1997 wpa_s, wpa_s->pending_eapol_rx_src,
1998 wpabuf_head(wpa_s->pending_eapol_rx),
1999 wpabuf_len(wpa_s->pending_eapol_rx));
2000 }
2001 wpabuf_free(wpa_s->pending_eapol_rx);
2002 wpa_s->pending_eapol_rx = NULL;
2003 }
60b94c98 2004
0194fedb
JB		 2005 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2006 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
66562e9c
JM		 2007 wpa_s->current_ssid &&
2008 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
0194fedb
JB		 2009 /* Set static WEP keys again */
2010 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2011 }
50b05780
JM		 2012
2013#ifdef CONFIG_IBSS_RSN
2014 if (wpa_s->current_ssid &&
2015 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2016 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
78177a00
JM		 2017 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2018 wpa_s->ibss_rsn == NULL) {
2019 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2020 if (!wpa_s->ibss_rsn) {
2021 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2022 wpa_supplicant_deauthenticate(
2023 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2024 return;
2025 }
2026
2027 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2028 }
50b05780 2029#endif /* CONFIG_IBSS_RSN */
f9f0526b
JM		 2030
2031 wpas_wps_notify_assoc(wpa_s, bssid);
6fc6879b
JM		 2032}
2033
2034
d00821e9
JM		 2035static int disconnect_reason_recoverable(u16 reason_code)
2036{
2037 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2038 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2039 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2040}
2041
2042
0544b242 2043static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
3d9975d5
JM		 2044 u16 reason_code,
2045 int locally_generated)
6fc6879b
JM		 2046{
2047 const u8 *bssid;
0aadd568
JM		 2048
2049 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2050 /*
2051 * At least Host AP driver and a Prism3 card seemed to be
2052 * generating streams of disconnected events when configuring
2053 * IBSS for WPA-None. Ignore them for now.
2054 */
2055 return;
2056 }
2057
2058 bssid = wpa_s->bssid;
2059 if (is_zero_ether_addr(bssid))
2060 bssid = wpa_s->pending_bssid;
2061
2062 if (!is_zero_ether_addr(bssid) ||
2063 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2064 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2065 " reason=%d%s",
2066 MAC2STR(bssid), reason_code,
2067 locally_generated ? " locally_generated=1" : "");
2068 }
2069}
2070
2071
c9a82218
JM		 2072static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2073 int locally_generated)
2074{
2075 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2076 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2077 return 0; /* Not in 4-way handshake with PSK */
2078
2079 /*
2080 * It looks like connection was lost while trying to go through PSK
2081 * 4-way handshake. Filter out known disconnection cases that are caused
2082 * by something else than PSK mismatch to avoid confusing reports.
2083 */
2084
2085 if (locally_generated) {
2086 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2087 return 0;
2088 }
2089
2090 return 1;
2091}
2092
2093
0aadd568
JM		 2094static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2095 u16 reason_code,
2096 int locally_generated)
2097{
2098 const u8 *bssid;
6d6f4bb8
JM		 2099 int authenticating;
2100 u8 prev_pending_bssid[ETH_ALEN];
d00821e9 2101 struct wpa_bss *fast_reconnect = NULL;
5d5c4ee5 2102#ifndef CONFIG_NO_SCAN_PROCESSING
d00821e9 2103 struct wpa_ssid *fast_reconnect_ssid = NULL;
5d5c4ee5 2104#endif /* CONFIG_NO_SCAN_PROCESSING */
bcdf2096 2105 struct wpa_ssid *last_ssid;
6d6f4bb8
JM		 2106
2107 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2108 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
6fc6879b
JM		 2109
2110 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2111 /*
2112 * At least Host AP driver and a Prism3 card seemed to be
2113 * generating streams of disconnected events when configuring
2114 * IBSS for WPA-None. Ignore them for now.
2115 */
f049052b
BG		 2116 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2117 "IBSS/WPA-None mode");
6fc6879b
JM		 2118 return;
2119 }
2120
c9a82218 2121 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
6fc6879b
JM		 2122 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2123 "pre-shared key may be incorrect");
5bf9a6c8
JM		 2124 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2125 return; /* P2P group removed */
00e5e3d5 2126 wpas_auth_failed(wpa_s);
6fc6879b 2127 }
3636b891
JM		 2128 if (!wpa_s->disconnected &&
2129 (!wpa_s->auto_reconnect_disabled ||
2130 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS)) {
d00821e9 2131 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
f7da5a9e
JM		 2132 "reconnect (wps=%d wpa_state=%d)",
2133 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2134 wpa_s->wpa_state);
d00821e9
JM		 2135 if (wpa_s->wpa_state == WPA_COMPLETED &&
2136 wpa_s->current_ssid &&
2137 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
3d9975d5 2138 !locally_generated &&
d00821e9
JM		 2139 disconnect_reason_recoverable(reason_code)) {
2140 /*
2141 * It looks like the AP has dropped association with
2142 * us, but could allow us to get back in. Try to
2143 * reconnect to the same BSS without full scan to save
2144 * time for some common cases.
2145 */
2146 fast_reconnect = wpa_s->current_bss;
5d5c4ee5 2147#ifndef CONFIG_NO_SCAN_PROCESSING
d00821e9 2148 fast_reconnect_ssid = wpa_s->current_ssid;
5d5c4ee5 2149#endif /* CONFIG_NO_SCAN_PROCESSING */
d00821e9 2150 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
0d0a8ca1 2151 wpa_supplicant_req_scan(wpa_s, 0, 100000);
f7da5a9e
JM		 2152 else
2153 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2154 "immediate scan");
0d0a8ca1 2155 } else {
d00821e9 2156 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
f049052b 2157 "try to re-connect");
0d0a8ca1
AC		 2158 wpa_s->reassociate = 0;
2159 wpa_s->disconnected = 1;
433cd2ce 2160 wpa_supplicant_cancel_sched_scan(wpa_s);
0d0a8ca1 2161 }
6fc6879b 2162 bssid = wpa_s->bssid;
a8e16edc 2163 if (is_zero_ether_addr(bssid))
6fc6879b 2164 bssid = wpa_s->pending_bssid;
56d24b4e
JM		 2165 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2166 wpas_connection_failed(wpa_s, bssid);
6fc6879b 2167 wpa_sm_notify_disassoc(wpa_s->wpa);
0bb1e425
GM		 2168 if (locally_generated)
2169 wpa_s->disconnect_reason = -reason_code;
2170 else
2171 wpa_s->disconnect_reason = reason_code;
2172 wpas_notify_disconnect_reason(wpa_s);
6fc6879b 2173 if (wpa_supplicant_dynamic_keys(wpa_s)) {
f049052b 2174 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
6fc6879b
JM		 2175 wpa_clear_keys(wpa_s, wpa_s->bssid);
2176 }
bcdf2096 2177 last_ssid = wpa_s->current_ssid;
6fc6879b 2178 wpa_supplicant_mark_disassoc(wpa_s);
e29853bb 2179
bcdf2096 2180 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
e29853bb 2181 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
bcdf2096
JM		 2182 wpa_s->current_ssid = last_ssid;
2183 }
d00821e9 2184
eef7235d
JM		 2185 if (fast_reconnect &&
2186 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2187 !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2188 !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2189 fast_reconnect->ssid_len) &&
2190 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid)) {
5928411e 2191#ifndef CONFIG_NO_SCAN_PROCESSING
d00821e9
JM		 2192 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2193 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2194 fast_reconnect_ssid) < 0) {
2195 /* Recover through full scan */
2196 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2197 }
5928411e 2198#endif /* CONFIG_NO_SCAN_PROCESSING */
eef7235d
JM		 2199 } else if (fast_reconnect) {
2200 /*
2201 * Could not reconnect to the same BSS due to network being
2202 * disabled. Use a new scan to match the alternative behavior
2203 * above, i.e., to continue automatic reconnection attempt in a
2204 * way that enforces disabled network rules.
2205 */
2206 wpa_supplicant_req_scan(wpa_s, 0, 100000);
d00821e9 2207 }
6fc6879b
JM		 2208}
2209
2210
46690a3b 2211#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
01a17491 2212void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
46690a3b
JM		 2213{
2214 struct wpa_supplicant *wpa_s = eloop_ctx;
2215
2216 if (!wpa_s->pending_mic_error_report)
2217 return;
2218
f049052b 2219 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
46690a3b
JM		 2220 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2221 wpa_s->pending_mic_error_report = 0;
2222}
2223#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2224
2225
6fc6879b
JM		 2226static void
2227wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2228 union wpa_event_data *data)
2229{
2230 int pairwise;
6473e5c8 2231 struct os_reltime t;
6fc6879b
JM		 2232
2233 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2234 pairwise = (data && data->michael_mic_failure.unicast);
6473e5c8
JB		 2235 os_get_reltime(&t);
2236 if ((wpa_s->last_michael_mic_error.sec &&
2237 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
46690a3b
JM		 2238 wpa_s->pending_mic_error_report) {
2239 if (wpa_s->pending_mic_error_report) {
2240 /*
2241 * Send the pending MIC error report immediately since
2242 * we are going to start countermeasures and AP better
2243 * do the same.
2244 */
2245 wpa_sm_key_request(wpa_s->wpa, 1,
2246 wpa_s->pending_mic_error_pairwise);
2247 }
2248
2249 /* Send the new MIC error report immediately since we are going
2250 * to start countermeasures and AP better do the same.
2251 */
2252 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2253
6fc6879b
JM		 2254 /* initialize countermeasures */
2255 wpa_s->countermeasures = 1;
8945cc45
BM		 2256
2257 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2258
6fc6879b
JM		 2259 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2260
2261 /*
2262 * Need to wait for completion of request frame. We do not get
2263 * any callback for the message completion, so just wait a
2264 * short while and hope for the best. */
2265 os_sleep(0, 10000);
2266
2267 wpa_drv_set_countermeasures(wpa_s, 1);
2268 wpa_supplicant_deauthenticate(wpa_s,
2269 WLAN_REASON_MICHAEL_MIC_FAILURE);
2270 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2271 wpa_s, NULL);
2272 eloop_register_timeout(60, 0,
2273 wpa_supplicant_stop_countermeasures,
2274 wpa_s, NULL);
2275 /* TODO: mark the AP rejected for 60 second. STA is
2276 * allowed to associate with another AP.. */
46690a3b
JM		 2277 } else {
2278#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2279 if (wpa_s->mic_errors_seen) {
2280 /*
2281 * Reduce the effectiveness of Michael MIC error
2282 * reports as a means for attacking against TKIP if
2283 * more than one MIC failure is noticed with the same
2284 * PTK. We delay the transmission of the reports by a
2285 * random time between 0 and 60 seconds in order to
2286 * force the attacker wait 60 seconds before getting
2287 * the information on whether a frame resulted in a MIC
2288 * failure.
2289 */
2290 u8 rval[4];
2291 int sec;
2292
2293 if (os_get_random(rval, sizeof(rval)) < 0)
2294 sec = os_random() % 60;
2295 else
2296 sec = WPA_GET_BE32(rval) % 60;
f049052b
BG		 2297 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2298 "report %d seconds", sec);
46690a3b
JM		 2299 wpa_s->pending_mic_error_report = 1;
2300 wpa_s->pending_mic_error_pairwise = pairwise;
2301 eloop_cancel_timeout(
2302 wpa_supplicant_delayed_mic_error_report,
2303 wpa_s, NULL);
2304 eloop_register_timeout(
2305 sec, os_random() % 1000000,
2306 wpa_supplicant_delayed_mic_error_report,
2307 wpa_s, NULL);
2308 } else {
2309 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2310 }
2311#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2312 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2313#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
6fc6879b 2314 }
6473e5c8 2315 wpa_s->last_michael_mic_error = t;
46690a3b 2316 wpa_s->mic_errors_seen++;
6fc6879b
JM		 2317}
2318
2319
a83d9c96
SL		 2320#ifdef CONFIG_TERMINATE_ONLASTIF
2321static int any_interfaces(struct wpa_supplicant *head)
2322{
2323 struct wpa_supplicant *wpa_s;
2324
2325 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2326 if (!wpa_s->interface_removed)
2327 return 1;
2328 return 0;
2329}
2330#endif /* CONFIG_TERMINATE_ONLASTIF */
2331
2332
6fc6879b
JM		 2333static void
2334wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2335 union wpa_event_data *data)
2336{
2337 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2338 return;
2339
2340 switch (data->interface_status.ievent) {
2341 case EVENT_INTERFACE_ADDED:
2342 if (!wpa_s->interface_removed)
2343 break;
2344 wpa_s->interface_removed = 0;
f049052b 2345 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
6fc6879b 2346 if (wpa_supplicant_driver_init(wpa_s) < 0) {
f049052b
BG		 2347 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2348 "driver after interface was added");
6fc6879b
JM		 2349 }
2350 break;
2351 case EVENT_INTERFACE_REMOVED:
f049052b 2352 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
6fc6879b
JM		 2353 wpa_s->interface_removed = 1;
2354 wpa_supplicant_mark_disassoc(wpa_s);
cb6710a4 2355 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
6fc6879b
JM		 2356 l2_packet_deinit(wpa_s->l2);
2357 wpa_s->l2 = NULL;
ea244d21 2358#ifdef CONFIG_IBSS_RSN
78177a00
JM		 2359 ibss_rsn_deinit(wpa_s->ibss_rsn);
2360 wpa_s->ibss_rsn = NULL;
ea244d21 2361#endif /* CONFIG_IBSS_RSN */
a83d9c96
SL		 2362#ifdef CONFIG_TERMINATE_ONLASTIF
2363 /* check if last interface */
2364 if (!any_interfaces(wpa_s->global->ifaces))
2365 eloop_terminate();
2366#endif /* CONFIG_TERMINATE_ONLASTIF */
6fc6879b
JM		 2367 break;
2368 }
2369}
2370
2371
2372#ifdef CONFIG_PEERKEY
2373static void
2374wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2375 union wpa_event_data *data)
2376{
2377 if (data == NULL)
2378 return;
2379 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2380}
2381#endif /* CONFIG_PEERKEY */
2382
2383
281ff0aa
GP		 2384#ifdef CONFIG_TDLS
2385static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2386 union wpa_event_data *data)
2387{
2388 if (data == NULL)
2389 return;
2390 switch (data->tdls.oper) {
2391 case TDLS_REQUEST_SETUP:
3887878e
SD		 2392 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2393 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2394 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2395 else
2396 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
281ff0aa
GP		 2397 break;
2398 case TDLS_REQUEST_TEARDOWN:
f130b105
SD		 2399 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2400 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2401 data->tdls.reason_code);
2402 else
2403 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2404 data->tdls.peer);
281ff0aa
GP		 2405 break;
2406 }
2407}
2408#endif /* CONFIG_TDLS */
2409
2410
ad3872a3 2411#ifdef CONFIG_WNM
75cad1a0
XC		 2412static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2413 union wpa_event_data *data)
2414{
2415 if (data == NULL)
2416 return;
2417 switch (data->wnm.oper) {
2418 case WNM_OPER_SLEEP:
2419 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2420 "(action=%d, intval=%d)",
2421 data->wnm.sleep_action, data->wnm.sleep_intval);
2422 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
cd0ef657 2423 data->wnm.sleep_intval, NULL);
75cad1a0
XC		 2424 break;
2425 }
2426}
ad3872a3 2427#endif /* CONFIG_WNM */
75cad1a0
XC		 2428
2429
6fc6879b
JM		 2430#ifdef CONFIG_IEEE80211R
2431static void
2432wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2433 union wpa_event_data *data)
2434{
2435 if (data == NULL)
2436 return;
2437
2438 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2439 data->ft_ies.ies_len,
2440 data->ft_ies.ft_action,
babfbf15
JM		 2441 data->ft_ies.target_ap,
2442 data->ft_ies.ric_ies,
2443 data->ft_ies.ric_ies_len) < 0) {
6fc6879b
JM		 2444 /* TODO: prevent MLME/driver from trying to associate? */
2445 }
2446}
2447#endif /* CONFIG_IEEE80211R */
2448
2449
11ef8d35
JM		 2450#ifdef CONFIG_IBSS_RSN
2451static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2452 union wpa_event_data *data)
2453{
df4bc509 2454 struct wpa_ssid *ssid;
df418245
XC		 2455 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2456 return;
11ef8d35
JM		 2457 if (data == NULL)
2458 return;
df4bc509
JM		 2459 ssid = wpa_s->current_ssid;
2460 if (ssid == NULL)
2461 return;
2462 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2463 return;
2464
11ef8d35
JM		 2465 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2466}
13adc57b
AQ		 2467
2468
2469static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2470 union wpa_event_data *data)
2471{
2472 struct wpa_ssid *ssid = wpa_s->current_ssid;
2473
2474 if (ssid == NULL)
2475 return;
2476
2477 /* check if the ssid is correctly configured as IBSS/RSN */
2478 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2479 return;
2480
2481 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2482 data->rx_mgmt.frame_len);
2483}
11ef8d35
JM		 2484#endif /* CONFIG_IBSS_RSN */
2485
2486
036f7c4a
JM		 2487#ifdef CONFIG_IEEE80211R
2488static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2489 size_t len)
2490{
2491 const u8 *sta_addr, *target_ap_addr;
2492 u16 status;
2493
2494 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2495 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2496 return; /* only SME case supported for now */
2497 if (len < 1 + 2 * ETH_ALEN + 2)
2498 return;
2499 if (data[0] != 2)
2500 return; /* Only FT Action Response is supported for now */
2501 sta_addr = data + 1;
2502 target_ap_addr = data + 1 + ETH_ALEN;
2503 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
f049052b
BG		 2504 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2505 MACSTR " TargetAP " MACSTR " status %u",
2506 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
036f7c4a
JM		 2507
2508 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
f049052b
BG		 2509 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2510 " in FT Action Response", MAC2STR(sta_addr));
036f7c4a
JM		 2511 return;
2512 }
2513
2514 if (status) {
f049052b
BG		 2515 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2516 "failure (status code %d)", status);
036f7c4a
JM		 2517 /* TODO: report error to FT code(?) */
2518 return;
2519 }
2520
2521 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2522 len - (1 + 2 * ETH_ALEN + 2), 1,
2523 target_ap_addr, NULL, 0) < 0)
2524 return;
2525
fe191985
JM		 2526#ifdef CONFIG_SME
2527 {
2528 struct wpa_bss *bss;
2529 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2530 if (bss)
2531 wpa_s->sme.freq = bss->freq;
62c72d72 2532 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
fe191985
JM		 2533 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2534 WLAN_AUTH_FT);
2535 }
2536#endif /* CONFIG_SME */
036f7c4a
JM		 2537}
2538#endif /* CONFIG_IEEE80211R */
2539
2540
7d878ca7
JM		 2541static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2542 struct unprot_deauth *e)
2543{
2544#ifdef CONFIG_IEEE80211W
2545 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2546 "dropped: " MACSTR " -> " MACSTR
2547 " (reason code %u)",
2548 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2549 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2550#endif /* CONFIG_IEEE80211W */
2551}
2552
2553
2554static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2555 struct unprot_disassoc *e)
2556{
2557#ifdef CONFIG_IEEE80211W
2558 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2559 "dropped: " MACSTR " -> " MACSTR
2560 " (reason code %u)",
2561 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2562 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2563#endif /* CONFIG_IEEE80211W */
2564}
2565
2566
d7df0fa7
JM		 2567static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
2568 u16 reason_code, int locally_generated,
2569 const u8 *ie, size_t ie_len, int deauth)
2570{
2571#ifdef CONFIG_AP
2572 if (wpa_s->ap_iface && addr) {
2573 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
2574 return;
2575 }
2576
2577 if (wpa_s->ap_iface) {
2578 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
2579 return;
2580 }
2581#endif /* CONFIG_AP */
2582
2583 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
2584
c60ba9f7
JM		 2585 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
2586 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
2587 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
2588 eapol_sm_failed(wpa_s->eapol))) &&
2589 !wpa_s->eap_expected_failure))
d7df0fa7
JM		 2590 wpas_auth_failed(wpa_s);
2591
2592#ifdef CONFIG_P2P
43ee4704 2593 if (deauth && reason_code > 0) {
d7df0fa7
JM		 2594 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
2595 locally_generated) > 0) {
2596 /*
2597 * The interface was removed, so cannot continue
2598 * processing any additional operations after this.
2599 */
2600 return;
2601 }
2602 }
2603#endif /* CONFIG_P2P */
2604
2605 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
2606 locally_generated);
2607}
2608
2609
2610static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
2611 struct disassoc_info *info)
2612{
2613 u16 reason_code = 0;
2614 int locally_generated = 0;
2615 const u8 *addr = NULL;
2616 const u8 *ie = NULL;
2617 size_t ie_len = 0;
2618
2619 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2620
2621 if (info) {
2622 addr = info->addr;
2623 ie = info->ie;
2624 ie_len = info->ie_len;
2625 reason_code = info->reason_code;
2626 locally_generated = info->locally_generated;
2627 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
2628 locally_generated ? " (locally generated)" : "");
2629 if (addr)
2630 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2631 MAC2STR(addr));
2632 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2633 ie, ie_len);
2634 }
2635
2636#ifdef CONFIG_AP
2637 if (wpa_s->ap_iface && info && info->addr) {
2638 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
2639 return;
2640 }
2641
2642 if (wpa_s->ap_iface) {
2643 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
2644 return;
2645 }
2646#endif /* CONFIG_AP */
2647
2648#ifdef CONFIG_P2P
2649 if (info) {
2650 wpas_p2p_disassoc_notif(
2651 wpa_s, info->addr, reason_code, info->ie, info->ie_len,
2652 locally_generated);
2653 }
2654#endif /* CONFIG_P2P */
2655
2656 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2657 sme_event_disassoc(wpa_s, info);
2658
2659 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
2660 ie, ie_len, 0);
2661}
2662
2663
2664static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
2665 struct deauth_info *info)
2666{
2667 u16 reason_code = 0;
2668 int locally_generated = 0;
2669 const u8 *addr = NULL;
2670 const u8 *ie = NULL;
2671 size_t ie_len = 0;
2672
2673 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
2674
2675 if (info) {
2676 addr = info->addr;
2677 ie = info->ie;
2678 ie_len = info->ie_len;
2679 reason_code = info->reason_code;
2680 locally_generated = info->locally_generated;
2681 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2682 reason_code,
2683 locally_generated ? " (locally generated)" : "");
2684 if (addr) {
2685 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2686 MAC2STR(addr));
2687 }
2688 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
2689 ie, ie_len);
2690 }
2691
2692 wpa_reset_ft_completed(wpa_s->wpa);
2693
2694 wpas_event_disconnect(wpa_s, addr, reason_code,
2695 locally_generated, ie, ie_len, 1);
2696}
2697
2698
731ca636
VKE		 2699static void wpa_supplicant_update_channel_list(struct wpa_supplicant *wpa_s)
2700{
731ca636
VKE		 2701 struct wpa_supplicant *ifs;
2702
2703 if (wpa_s->drv_priv == NULL)
2704 return; /* Ignore event during drv initialization */
2705
2706 free_hw_features(wpa_s);
2707 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(
2708 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags);
2709
2710#ifdef CONFIG_P2P
2711 wpas_p2p_update_channel_list(wpa_s);
2712#endif /* CONFIG_P2P */
2713
2714 /*
c67e7e2a 2715 * Check other interfaces to see if they share the same radio. If
731ca636
VKE		 2716 * so, they get updated with this same hw mode info.
2717 */
c67e7e2a
JM		 2718 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
2719 radio_list) {
2720 if (ifs != wpa_s) {
731ca636
VKE		 2721 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
2722 ifs->ifname);
2723 free_hw_features(ifs);
2724 ifs->hw.modes = wpa_drv_get_hw_feature_data(
2725 ifs, &ifs->hw.num_modes, &ifs->hw.flags);
2726 }
2727 }
2728}
2729
2730
dbfb8e82
JM		 2731static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
2732 const struct ieee80211_mgmt *mgmt,
2733 size_t len, int freq)
2734{
2735 const u8 *payload;
2736 size_t plen;
2737 u8 category;
2738
2739 if (len < IEEE80211_HDRLEN + 2)
2740 return;
2741
2742 payload = &mgmt->u.action.category;
2743 category = *payload++;
2744 plen = (((const u8 *) mgmt) + len) - payload;
2745
2746 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2747 " Category=%u DataLen=%d freq=%d MHz",
2748 MAC2STR(mgmt->sa), category, (int) plen, freq);
2749
2750#ifdef CONFIG_IEEE80211R
2751 if (category == WLAN_ACTION_FT) {
2752 ft_rx_action(wpa_s, payload, plen);
2753 return;
2754 }
2755#endif /* CONFIG_IEEE80211R */
2756
2757#ifdef CONFIG_IEEE80211W
2758#ifdef CONFIG_SME
2759 if (category == WLAN_ACTION_SA_QUERY) {
2760 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
2761 return;
2762 }
2763#endif /* CONFIG_SME */
2764#endif /* CONFIG_IEEE80211W */
2765
2766#ifdef CONFIG_WNM
2767 if (mgmt->u.action.category == WLAN_ACTION_WNM) {
2768 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
2769 return;
2770 }
2771#endif /* CONFIG_WNM */
2772
2773#ifdef CONFIG_GAS
c5a64e2d
JM		 2774 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
2775 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
dbfb8e82 2776 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
c5a64e2d 2777 mgmt->u.action.category,
dbfb8e82
JM		 2778 payload, plen, freq) == 0)
2779 return;
2780#endif /* CONFIG_GAS */
2781
2782#ifdef CONFIG_TDLS
2783 if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
2784 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
2785 wpa_dbg(wpa_s, MSG_DEBUG,
2786 "TDLS: Received Discovery Response from " MACSTR,
2787 MAC2STR(mgmt->sa));
2788 return;
2789 }
2790#endif /* CONFIG_TDLS */
2791
2792#ifdef CONFIG_INTERWORKING
2793 if (category == WLAN_ACTION_QOS && plen >= 1 &&
2794 payload[0] == QOS_QOS_MAP_CONFIG) {
2795 const u8 *pos = payload + 1;
2796 size_t qlen = plen - 1;
2797 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
2798 MACSTR, MAC2STR(mgmt->sa));
2799 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
2800 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
2801 pos[1] <= qlen - 2 && pos[1] >= 16)
2802 wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
2803 return;
2804 }
2805#endif /* CONFIG_INTERWORKING */
2806
2807#ifdef CONFIG_P2P
2808 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
2809 category, payload, plen, freq);
2810#endif /* CONFIG_P2P */
2811}
2812
2813
253f2e37
AH		 2814static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
2815 union wpa_event_data *event)
2816{
2817#ifdef CONFIG_P2P
2818 struct wpa_supplicant *ifs;
2819#endif /* CONFIG_P2P */
2820 struct wpa_freq_range_list *list;
2821 char *str = NULL;
2822
2823 list = &event->freq_range;
2824
2825 if (list->num)
2826 str = freq_range_list_str(list);
2827 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
2828 str ? str : "");
2829
2830#ifdef CONFIG_P2P
2831 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
2832 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
2833 __func__);
2834 } else {
2835 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
2836 wpas_p2p_update_channel_list(wpa_s);
2837 }
2838
2839 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
2840 int freq;
2841 if (!ifs->current_ssid ||
2842 !ifs->current_ssid->p2p_group ||
2843 (ifs->current_ssid->mode != WPAS_MODE_P2P_GO &&
2844 ifs->current_ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION))
2845 continue;
2846
2847 freq = ifs->current_ssid->frequency;
2848 if (!freq_range_list_includes(list, freq)) {
2849 wpa_dbg(ifs, MSG_DEBUG, "P2P GO operating frequency %d MHz in safe range",
2850 freq);
2851 continue;
2852 }
2853
2854 wpa_dbg(ifs, MSG_DEBUG, "P2P GO operating in unsafe frequency %d MHz",
2855 freq);
2856 /* TODO: Consider using CSA or removing the group within
2857 * wpa_supplicant */
2858 wpa_msg(ifs, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
2859 }
2860#endif /* CONFIG_P2P */
2861
2862 os_free(str);
2863}
2864
2865
9646a8ab 2866void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
6fc6879b
JM		 2867 union wpa_event_data *data)
2868{
2869 struct wpa_supplicant *wpa_s = ctx;
2870
8401a6b0
JM		 2871 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
2872 event != EVENT_INTERFACE_ENABLED &&
9b6f44cb
JM		 2873 event != EVENT_INTERFACE_STATUS &&
2874 event != EVENT_SCHED_SCAN_STOPPED) {
6c3771d7
BG		 2875 wpa_dbg(wpa_s, MSG_DEBUG,
2876 "Ignore event %s (%d) while interface is disabled",
2877 event_to_string(event), event);
8401a6b0
JM		 2878 return;
2879 }
2880
74781dfc
JM		 2881#ifndef CONFIG_NO_STDOUT_DEBUG
2882{
2883 int level = MSG_DEBUG;
2884
eab6f5e0 2885 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
74781dfc
JM		 2886 const struct ieee80211_hdr *hdr;
2887 u16 fc;
2888 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
2889 fc = le_to_host16(hdr->frame_control);
2890 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2891 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
2892 level = MSG_EXCESSIVE;
2893 }
2894
2895 wpa_dbg(wpa_s, level, "Event %s (%d) received",
6c3771d7 2896 event_to_string(event), event);
74781dfc
JM		 2897}
2898#endif /* CONFIG_NO_STDOUT_DEBUG */
9b7124b2 2899
6fc6879b 2900 switch (event) {
c2a04078
JM		 2901 case EVENT_AUTH:
2902 sme_event_auth(wpa_s, data);
2903 break;
6fc6879b
JM		 2904 case EVENT_ASSOC:
2905 wpa_supplicant_event_assoc(wpa_s, data);
2906 break;
2907 case EVENT_DISASSOC:
d7df0fa7
JM		 2908 wpas_event_disassoc(wpa_s,
2909 data ? &data->disassoc_info : NULL);
2910 break;
a84ed99e 2911 case EVENT_DEAUTH:
d7df0fa7
JM		 2912 wpas_event_deauth(wpa_s,
2913 data ? &data->deauth_info : NULL);
6fc6879b
JM		 2914 break;
2915 case EVENT_MICHAEL_MIC_FAILURE:
2916 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
2917 break;
2918#ifndef CONFIG_NO_SCAN_PROCESSING
a5f40eff 2919 case EVENT_SCAN_STARTED:
dc3906cb 2920 os_get_reltime(&wpa_s->scan_start_time);
a5f40eff 2921 if (wpa_s->own_scan_requested) {
dc3906cb
JM		 2922 struct os_reltime diff;
2923
2924 os_reltime_sub(&wpa_s->scan_start_time,
2925 &wpa_s->scan_trigger_time, &diff);
2926 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
2927 diff.sec, diff.usec);
a5f40eff
JM		 2928 wpa_s->own_scan_requested = 0;
2929 wpa_s->own_scan_running = 1;
d81c73be
JM		 2930 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
2931 wpa_s->manual_scan_use_id) {
2932 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED "id=%u",
2933 wpa_s->manual_scan_id);
2934 } else {
2935 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
2936 }
a5f40eff
JM		 2937 } else {
2938 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
2939 wpa_s->external_scan_running = 1;
2940 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
2941 }
2942 break;
6fc6879b 2943 case EVENT_SCAN_RESULTS:
dc3906cb
JM		 2944 if (os_reltime_initialized(&wpa_s->scan_start_time)) {
2945 struct os_reltime now, diff;
2946 os_get_reltime(&now);
2947 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
2948 wpa_s->scan_start_time.sec = 0;
2949 wpa_s->scan_start_time.usec = 0;
2950 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
2951 diff.sec, diff.usec);
2952 }
8d923a4a 2953 wpa_supplicant_event_scan_results(wpa_s, data);
a5f40eff
JM		 2954 wpa_s->own_scan_running = 0;
2955 wpa_s->external_scan_running = 0;
6428d0a7 2956 radio_work_check_next(wpa_s);
6fc6879b
JM		 2957 break;
2958#endif /* CONFIG_NO_SCAN_PROCESSING */
2959 case EVENT_ASSOCINFO:
2960 wpa_supplicant_event_associnfo(wpa_s, data);
2961 break;
2962 case EVENT_INTERFACE_STATUS:
2963 wpa_supplicant_event_interface_status(wpa_s, data);
2964 break;
2965 case EVENT_PMKID_CANDIDATE:
2966 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
2967 break;
2968#ifdef CONFIG_PEERKEY
2969 case EVENT_STKSTART:
2970 wpa_supplicant_event_stkstart(wpa_s, data);
2971 break;
2972#endif /* CONFIG_PEERKEY */
281ff0aa
GP		 2973#ifdef CONFIG_TDLS
2974 case EVENT_TDLS:
2975 wpa_supplicant_event_tdls(wpa_s, data);
2976 break;
2977#endif /* CONFIG_TDLS */
ad3872a3 2978#ifdef CONFIG_WNM
75cad1a0
XC		 2979 case EVENT_WNM:
2980 wpa_supplicant_event_wnm(wpa_s, data);
2981 break;
ad3872a3 2982#endif /* CONFIG_WNM */
6fc6879b
JM		 2983#ifdef CONFIG_IEEE80211R
2984 case EVENT_FT_RESPONSE:
2985 wpa_supplicant_event_ft_response(wpa_s, data);
2986 break;
2987#endif /* CONFIG_IEEE80211R */
11ef8d35
JM		 2988#ifdef CONFIG_IBSS_RSN
2989 case EVENT_IBSS_RSN_START:
2990 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
2991 break;
2992#endif /* CONFIG_IBSS_RSN */
efa46078 2993 case EVENT_ASSOC_REJECT:
c05d6d18
JM		 2994 if (data->assoc_reject.bssid)
2995 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2996 "bssid=" MACSTR " status_code=%u",
2997 MAC2STR(data->assoc_reject.bssid),
2998 data->assoc_reject.status_code);
2999 else
3000 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3001 "status_code=%u",
3002 data->assoc_reject.status_code);
ea78c315
JM		 3003 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3004 sme_event_assoc_reject(wpa_s, data);
10737aba
JM		 3005 else {
3006 const u8 *bssid = data->assoc_reject.bssid;
3007 if (bssid == NULL || is_zero_ether_addr(bssid))
3008 bssid = wpa_s->pending_bssid;
3009 wpas_connection_failed(wpa_s, bssid);
3010 wpa_supplicant_mark_disassoc(wpa_s);
3011 }
efa46078 3012 break;
da1fb17c 3013 case EVENT_AUTH_TIMED_OUT:
ea78c315
JM		 3014 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3015 sme_event_auth_timed_out(wpa_s, data);
da1fb17c
JM		 3016 break;
3017 case EVENT_ASSOC_TIMED_OUT:
ea78c315
JM		 3018 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3019 sme_event_assoc_timed_out(wpa_s, data);
da1fb17c 3020 break;
f8b1f695 3021 case EVENT_TX_STATUS:
f049052b
BG		 3022 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3023 " type=%d stype=%d",
3024 MAC2STR(data->tx_status.dst),
3025 data->tx_status.type, data->tx_status.stype);
24f6497c 3026#ifdef CONFIG_AP
9bae1be0 3027 if (wpa_s->ap_iface == NULL) {
24f6497c 3028#ifdef CONFIG_OFFCHANNEL
9bae1be0
JM		 3029 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3030 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
24f6497c 3031 offchannel_send_action_tx_status(
9bae1be0
JM		 3032 wpa_s, data->tx_status.dst,
3033 data->tx_status.data,
3034 data->tx_status.data_len,
93b7ddd0 3035 data->tx_status.ack ?
24f6497c
JM		 3036 OFFCHANNEL_SEND_ACTION_SUCCESS :
3037 OFFCHANNEL_SEND_ACTION_NO_ACK);
3038#endif /* CONFIG_OFFCHANNEL */
9bae1be0
JM		 3039 break;
3040 }
24f6497c
JM		 3041#endif /* CONFIG_AP */
3042#ifdef CONFIG_OFFCHANNEL
f049052b
BG		 3043 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3044 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
9bae1be0
JM		 3045 /*
3046 * Catch TX status events for Action frames we sent via group
3047 * interface in GO mode.
3048 */
3049 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3050 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3051 os_memcmp(wpa_s->parent->pending_action_dst,
3052 data->tx_status.dst, ETH_ALEN) == 0) {
24f6497c 3053 offchannel_send_action_tx_status(
9bae1be0
JM		 3054 wpa_s->parent, data->tx_status.dst,
3055 data->tx_status.data,
3056 data->tx_status.data_len,
1d39378a 3057 data->tx_status.ack ?
24f6497c
JM		 3058 OFFCHANNEL_SEND_ACTION_SUCCESS :
3059 OFFCHANNEL_SEND_ACTION_NO_ACK);
f8b1f695 3060 break;
9bae1be0 3061 }
24f6497c
JM		 3062#endif /* CONFIG_OFFCHANNEL */
3063#ifdef CONFIG_AP
f8b1f695
JM		 3064 switch (data->tx_status.type) {
3065 case WLAN_FC_TYPE_MGMT:
3066 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3067 data->tx_status.data_len,
3068 data->tx_status.stype,
3069 data->tx_status.ack);
3070 break;
3071 case WLAN_FC_TYPE_DATA:
3072 ap_tx_status(wpa_s, data->tx_status.dst,
3073 data->tx_status.data,
3074 data->tx_status.data_len,
3075 data->tx_status.ack);
3076 break;
3077 }
24f6497c 3078#endif /* CONFIG_AP */
f8b1f695 3079 break;
24f6497c 3080#ifdef CONFIG_AP
dd840f79
JB		 3081 case EVENT_EAPOL_TX_STATUS:
3082 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3083 data->eapol_tx_status.data,
3084 data->eapol_tx_status.data_len,
3085 data->eapol_tx_status.ack);
3086 break;
bcf24348
JB		 3087 case EVENT_DRIVER_CLIENT_POLL_OK:
3088 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3089 break;
f8b1f695
JM		 3090 case EVENT_RX_FROM_UNKNOWN:
3091 if (wpa_s->ap_iface == NULL)
3092 break;
9b90955e
JB		 3093 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3094 data->rx_from_unknown.wds);
f8b1f695 3095 break;
1b487b8b
TP		 3096 case EVENT_CH_SWITCH:
3097 if (!data)
3098 break;
3099 if (!wpa_s->ap_iface) {
3100 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch "
3101 "event in non-AP mode");
3102 break;
3103 }
3104
1b487b8b
TP		 3105 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3106 data->ch_switch.ht_enabled,
8d1fdde7
JD		 3107 data->ch_switch.ch_offset,
3108 data->ch_switch.ch_width,
3109 data->ch_switch.cf1,
3110 data->ch_switch.cf2);
1b487b8b 3111 break;
13adc57b 3112#endif /* CONFIG_AP */
2d43d37f
JB		 3113 case EVENT_RX_MGMT: {
3114 u16 fc, stype;
3115 const struct ieee80211_mgmt *mgmt;
3116
3117 mgmt = (const struct ieee80211_mgmt *)
3118 data->rx_mgmt.frame;
3119 fc = le_to_host16(mgmt->frame_control);
3120 stype = WLAN_FC_GET_STYPE(fc);
3121
13adc57b 3122#ifdef CONFIG_AP
9bae1be0 3123 if (wpa_s->ap_iface == NULL) {
13adc57b 3124#endif /* CONFIG_AP */
9bae1be0 3125#ifdef CONFIG_P2P
9bae1be0
JM		 3126 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3127 data->rx_mgmt.frame_len > 24) {
3128 const u8 *src = mgmt->sa;
3129 const u8 *ie = mgmt->u.probe_req.variable;
3130 size_t ie_len = data->rx_mgmt.frame_len -
3131 (mgmt->u.probe_req.variable -
3132 data->rx_mgmt.frame);
baf513d6
JB		 3133 wpas_p2p_probe_req_rx(
3134 wpa_s, src, mgmt->da,
3135 mgmt->bssid, ie, ie_len,
3136 data->rx_mgmt.ssi_signal);
9bae1be0
JM		 3137 break;
3138 }
3139#endif /* CONFIG_P2P */
13adc57b
AQ		 3140#ifdef CONFIG_IBSS_RSN
3141 if (stype == WLAN_FC_STYPE_AUTH &&
3142 data->rx_mgmt.frame_len >= 30) {
3143 wpa_supplicant_event_ibss_auth(wpa_s, data);
3144 break;
3145 }
3146#endif /* CONFIG_IBSS_RSN */
dbfb8e82
JM		 3147
3148 if (stype == WLAN_FC_STYPE_ACTION) {
3149 wpas_event_rx_mgmt_action(
3150 wpa_s, mgmt, data->rx_mgmt.frame_len,
3151 data->rx_mgmt.freq);
3152 break;
3153 }
3154
f049052b
BG		 3155 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3156 "management frame in non-AP mode");
f8b1f695 3157 break;
13adc57b 3158#ifdef CONFIG_AP
9bae1be0 3159 }
2d43d37f
JB		 3160
3161 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3162 data->rx_mgmt.frame_len > 24) {
3163 const u8 *ie = mgmt->u.probe_req.variable;
3164 size_t ie_len = data->rx_mgmt.frame_len -
3165 (mgmt->u.probe_req.variable -
3166 data->rx_mgmt.frame);
3167
3168 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3169 mgmt->bssid, ie, ie_len,
3170 data->rx_mgmt.ssi_signal);
2d43d37f
JB		 3171 }
3172
2a8b7416 3173 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
13adc57b 3174#endif /* CONFIG_AP */
f8b1f695 3175 break;
2d43d37f 3176 }
e67b55fb 3177 case EVENT_RX_PROBE_REQ:
b211f3eb
JM		 3178 if (data->rx_probe_req.sa == NULL ||
3179 data->rx_probe_req.ie == NULL)
3180 break;
e67b55fb
JM		 3181#ifdef CONFIG_AP
3182 if (wpa_s->ap_iface) {
3183 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3184 data->rx_probe_req.sa,
04a85e44
JM		 3185 data->rx_probe_req.da,
3186 data->rx_probe_req.bssid,
e67b55fb 3187 data->rx_probe_req.ie,
baf513d6
JB		 3188 data->rx_probe_req.ie_len,
3189 data->rx_probe_req.ssi_signal);
e67b55fb
JM		 3190 break;
3191 }
3192#endif /* CONFIG_AP */
3193#ifdef CONFIG_P2P
3194 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
04a85e44
JM		 3195 data->rx_probe_req.da,
3196 data->rx_probe_req.bssid,
e67b55fb 3197 data->rx_probe_req.ie,
baf513d6
JB		 3198 data->rx_probe_req.ie_len,
3199 data->rx_probe_req.ssi_signal);
9bae1be0 3200#endif /* CONFIG_P2P */
036f7c4a 3201 break;
9bae1be0 3202 case EVENT_REMAIN_ON_CHANNEL:
24f6497c
JM		 3203#ifdef CONFIG_OFFCHANNEL
3204 offchannel_remain_on_channel_cb(
3205 wpa_s, data->remain_on_channel.freq,
3206 data->remain_on_channel.duration);
3207#endif /* CONFIG_OFFCHANNEL */
3208#ifdef CONFIG_P2P
9bae1be0
JM		 3209 wpas_p2p_remain_on_channel_cb(
3210 wpa_s, data->remain_on_channel.freq,
3211 data->remain_on_channel.duration);
24f6497c 3212#endif /* CONFIG_P2P */
9bae1be0
JM		 3213 break;
3214 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
24f6497c
JM		 3215#ifdef CONFIG_OFFCHANNEL
3216 offchannel_cancel_remain_on_channel_cb(
3217 wpa_s, data->remain_on_channel.freq);
3218#endif /* CONFIG_OFFCHANNEL */
3219#ifdef CONFIG_P2P
9bae1be0
JM		 3220 wpas_p2p_cancel_remain_on_channel_cb(
3221 wpa_s, data->remain_on_channel.freq);
24f6497c 3222#endif /* CONFIG_P2P */
9bae1be0 3223 break;
a8e0505b
JM		 3224 case EVENT_EAPOL_RX:
3225 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3226 data->eapol_rx.data,
3227 data->eapol_rx.data_len);
3228 break;
e2f74005
JM		 3229 case EVENT_SIGNAL_CHANGE:
3230 bgscan_notify_signal_change(
60a972a6 3231 wpa_s, data->signal_change.above_threshold,
174fa789
PS		 3232 data->signal_change.current_signal,
3233 data->signal_change.current_noise,
3234 data->signal_change.current_txrate);
e2f74005 3235 break;
8401a6b0 3236 case EVENT_INTERFACE_ENABLED:
f049052b 3237 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
8401a6b0 3238 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
bfba8deb 3239 wpa_supplicant_update_mac_addr(wpa_s);
199716ad 3240#ifdef CONFIG_AP
9919f7a2
JB		 3241 if (!wpa_s->ap_iface) {
3242 wpa_supplicant_set_state(wpa_s,
3243 WPA_DISCONNECTED);
3244 wpa_supplicant_req_scan(wpa_s, 0, 0);
3245 } else
3246 wpa_supplicant_set_state(wpa_s,
3247 WPA_COMPLETED);
199716ad
BG		 3248#else /* CONFIG_AP */
3249 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3250 wpa_supplicant_req_scan(wpa_s, 0, 0);
3251#endif /* CONFIG_AP */
8401a6b0
JM		 3252 }
3253 break;
3254 case EVENT_INTERFACE_DISABLED:
f049052b 3255 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
6f72577f
IP		 3256#ifdef CONFIG_P2P
3257 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3258 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3259 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
3260 /*
3261 * The interface was externally disabled. Remove
3262 * it assuming an external entity will start a
3263 * new session if needed.
3264 */
3265 wpas_p2p_disconnect(wpa_s);
3266 break;
3267 }
3268#endif /* CONFIG_P2P */
3269
8401a6b0 3270 wpa_supplicant_mark_disassoc(wpa_s);
b3253ebb
AO		 3271 radio_remove_works(wpa_s, NULL, 0);
3272
8401a6b0
JM		 3273 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3274 break;
b5c9da8d 3275 case EVENT_CHANNEL_LIST_CHANGED:
731ca636 3276 wpa_supplicant_update_channel_list(wpa_s);
c973f386
JM		 3277 break;
3278 case EVENT_INTERFACE_UNAVAILABLE:
3279#ifdef CONFIG_P2P
3280 wpas_p2p_interface_unavailable(wpa_s);
7cfc4ac3
AGS		 3281#endif /* CONFIG_P2P */
3282 break;
3283 case EVENT_BEST_CHANNEL:
f049052b
BG		 3284 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3285 "(%d %d %d)",
3286 data->best_chan.freq_24, data->best_chan.freq_5,
3287 data->best_chan.freq_overall);
7cfc4ac3
AGS		 3288 wpa_s->best_24_freq = data->best_chan.freq_24;
3289 wpa_s->best_5_freq = data->best_chan.freq_5;
3290 wpa_s->best_overall_freq = data->best_chan.freq_overall;
3291#ifdef CONFIG_P2P
3292 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3293 data->best_chan.freq_5,
3294 data->best_chan.freq_overall);
b5c9da8d
JM		 3295#endif /* CONFIG_P2P */
3296 break;
7d878ca7
JM		 3297 case EVENT_UNPROT_DEAUTH:
3298 wpa_supplicant_event_unprot_deauth(wpa_s,
3299 &data->unprot_deauth);
3300 break;
3301 case EVENT_UNPROT_DISASSOC:
3302 wpa_supplicant_event_unprot_disassoc(wpa_s,
3303 &data->unprot_disassoc);
3304 break;
0d7e5a3a
JB		 3305 case EVENT_STATION_LOW_ACK:
3306#ifdef CONFIG_AP
3307 if (wpa_s->ap_iface && data)
3308 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3309 data->low_ack.addr);
3310#endif /* CONFIG_AP */
8f15f711
AN		 3311#ifdef CONFIG_TDLS
3312 if (data)
3313 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr);
3314#endif /* CONFIG_TDLS */
0d7e5a3a 3315 break;
ea244d21
XC		 3316 case EVENT_IBSS_PEER_LOST:
3317#ifdef CONFIG_IBSS_RSN
3318 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
3319#endif /* CONFIG_IBSS_RSN */
3320 break;
b14a210c
JB		 3321 case EVENT_DRIVER_GTK_REKEY:
3322 if (os_memcmp(data->driver_gtk_rekey.bssid,
3323 wpa_s->bssid, ETH_ALEN))
3324 break;
3325 if (!wpa_s->wpa)
3326 break;
3327 wpa_sm_update_replay_ctr(wpa_s->wpa,
3328 data->driver_gtk_rekey.replay_ctr);
3329 break;
cbdf3507 3330 case EVENT_SCHED_SCAN_STOPPED:
dd271857 3331 wpa_s->pno = 0;
cbdf3507
LC		 3332 wpa_s->sched_scanning = 0;
3333 wpa_supplicant_notify_scanning(wpa_s, 0);
3334
9b6f44cb
JM		 3335 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
3336 break;
3337
cbdf3507 3338 /*
cf70d298
RM		 3339 * Start a new sched scan to continue searching for more SSIDs
3340 * either if timed out or PNO schedule scan is pending.
cbdf3507 3341 */
cf70d298
RM		 3342 if (wpa_s->sched_scan_timed_out || wpa_s->pno_sched_pending) {
3343
3344 if (wpa_supplicant_req_sched_scan(wpa_s) < 0 &&
3345 wpa_s->pno_sched_pending) {
3346 wpa_msg(wpa_s, MSG_ERROR, "Failed to schedule PNO");
3347 } else if (wpa_s->pno_sched_pending) {
3348 wpa_s->pno_sched_pending = 0;
3349 wpa_s->pno = 1;
3350 }
3351 }
3352
cbdf3507 3353 break;
783fcb7d
GG		 3354 case EVENT_WPS_BUTTON_PUSHED:
3355#ifdef CONFIG_WPS
3356 wpas_wps_start_pbc(wpa_s, NULL, 0);
3357#endif /* CONFIG_WPS */
3358 break;
253f2e37
AH		 3359 case EVENT_AVOID_FREQUENCIES:
3360 wpa_supplicant_notify_avoid_freq(wpa_s, data);
3361 break;
3140803b
RM		 3362 case EVENT_CONNECT_FAILED_REASON:
3363#ifdef CONFIG_AP
3364 if (!wpa_s->ap_iface || !data)
3365 break;
3366 hostapd_event_connect_failed_reason(
3367 wpa_s->ap_iface->bss[0],
3368 data->connect_failed_reason.addr,
3369 data->connect_failed_reason.code);
3370#endif /* CONFIG_AP */
3371 break;
6fc6879b 3372 default:
f049052b 3373 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
6fc6879b
JM		 3374 break;
3375 }
3376}
Unnamed repository; edit this file 'description' to name the repository.