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WNM: Add option to disable keep-alive frames for testing purposes
[thirdparty/hostap.git] / wpa_supplicant / events.c
CommitLineData
6fc6879b
JM		 1/*
2 * WPA Supplicant - Driver event processing
3d9975d5 3 * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
6fc6879b 4 *
0f3d578e
JM		 5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
6fc6879b
JM		 7 */
8
9#include "includes.h"
10
11#include "common.h"
12#include "eapol_supp/eapol_supp_sm.h"
3acb5005 13#include "rsn_supp/wpa.h"
6fc6879b 14#include "eloop.h"
6fc6879b
JM		 15#include "config.h"
16#include "l2_packet/l2_packet.h"
17#include "wpa_supplicant_i.h"
2d5b792d 18#include "driver_i.h"
6fc6879b 19#include "pcsc_funcs.h"
3acb5005
JM		 20#include "rsn_supp/preauth.h"
21#include "rsn_supp/pmksa_cache.h"
90973fb2 22#include "common/wpa_ctrl.h"
6fc6879b 23#include "eap_peer/eap.h"
1d041bec 24#include "ap/hostapd.h"
93b7ddd0 25#include "p2p/p2p.h"
75cad1a0 26#include "wnm_sta.h"
8bac466b 27#include "notify.h"
90973fb2 28#include "common/ieee802_11_defs.h"
54f489be 29#include "common/ieee802_11_common.h"
bbb921da 30#include "crypto/random.h"
6fc6879b
JM		 31#include "blacklist.h"
32#include "wpas_glue.h"
351f09a2 33#include "wps_supplicant.h"
11ef8d35 34#include "ibss_rsn.h"
c2a04078 35#include "sme.h"
04ea7b79 36#include "gas_query.h"
9bae1be0 37#include "p2p_supplicant.h"
60b94c98 38#include "bgscan.h"
7c865c68 39#include "autoscan.h"
f8b1f695 40#include "ap.h"
6fa81a3b 41#include "bss.h"
9ba9fa07 42#include "scan.h"
24f6497c 43#include "offchannel.h"
4d5bda5f 44#include "interworking.h"
6fc6879b
JM		 45
46
00e5e3d5
JM		 47static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
48 struct wpa_ssid *ssid)
49{
50 struct os_time now;
51
52 if (ssid == NULL || ssid->disabled_until.sec == 0)
53 return 0;
54
55 os_get_time(&now);
56 if (ssid->disabled_until.sec > now.sec)
57 return ssid->disabled_until.sec - now.sec;
58
59 wpas_clear_temp_disabled(wpa_s, ssid, 0);
60
61 return 0;
62}
63
64
6fc6879b
JM		 65static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
66{
8bac466b 67 struct wpa_ssid *ssid, *old_ssid;
00e5e3d5 68 int res;
6fc6879b
JM		 69
70 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
71 return 0;
72
f049052b
BG		 73 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
74 "information");
6fc6879b
JM		 75 ssid = wpa_supplicant_get_ssid(wpa_s);
76 if (ssid == NULL) {
f049052b
BG		 77 wpa_msg(wpa_s, MSG_INFO,
78 "No network configuration found for the current AP");
6fc6879b
JM		 79 return -1;
80 }
81
349493bd 82 if (wpas_network_disabled(wpa_s, ssid)) {
f049052b 83 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
6fc6879b
JM		 84 return -1;
85 }
86
6407f413
JM		 87 if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
88 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
89 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
90 return -1;
91 }
92
00e5e3d5
JM		 93 res = wpas_temp_disabled(wpa_s, ssid);
94 if (res > 0) {
95 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
96 "disabled for %d second(s)", res);
97 return -1;
98 }
99
f049052b
BG		 100 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
101 "current AP");
0bf927a0 102 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
6fc6879b
JM		 103 u8 wpa_ie[80];
104 size_t wpa_ie_len = sizeof(wpa_ie);
105 wpa_supplicant_set_suites(wpa_s, NULL, ssid,
106 wpa_ie, &wpa_ie_len);
107 } else {
108 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
109 }
110
111 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
112 eapol_sm_invalidate_cached_session(wpa_s->eapol);
8bac466b 113 old_ssid = wpa_s->current_ssid;
6fc6879b
JM		 114 wpa_s->current_ssid = ssid;
115 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
116 wpa_supplicant_initiate_eapol(wpa_s);
8bac466b
JM		 117 if (old_ssid != wpa_s->current_ssid)
118 wpas_notify_network_changed(wpa_s);
6fc6879b
JM		 119
120 return 0;
121}
122
123
01a17491 124void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
6fc6879b
JM		 125{
126 struct wpa_supplicant *wpa_s = eloop_ctx;
127
128 if (wpa_s->countermeasures) {
129 wpa_s->countermeasures = 0;
130 wpa_drv_set_countermeasures(wpa_s, 0);
131 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
132 wpa_supplicant_req_scan(wpa_s, 0, 0);
133 }
134}
135
136
137void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
138{
8bac466b
JM		 139 int bssid_changed;
140
b6668734
JM		 141 wnm_bss_keep_alive_deinit(wpa_s);
142
78177a00
JM		 143#ifdef CONFIG_IBSS_RSN
144 ibss_rsn_deinit(wpa_s->ibss_rsn);
145 wpa_s->ibss_rsn = NULL;
146#endif /* CONFIG_IBSS_RSN */
147
ca62e114
JM		 148#ifdef CONFIG_AP
149 wpa_supplicant_ap_deinit(wpa_s);
150#endif /* CONFIG_AP */
151
8401a6b0
JM		 152 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
153 return;
154
6fc6879b 155 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
8bac466b 156 bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
6fc6879b
JM		 157 os_memset(wpa_s->bssid, 0, ETH_ALEN);
158 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
a0227929
JM		 159#ifdef CONFIG_SME
160 wpa_s->sme.prev_bssid_set = 0;
161#endif /* CONFIG_SME */
b1aebbc4
JM		 162#ifdef CONFIG_P2P
163 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
164#endif /* CONFIG_P2P */
be8be671 165 wpa_s->current_bss = NULL;
3c85f144 166 wpa_s->assoc_freq = 0;
8fd0f0f3
HW		 167#ifdef CONFIG_IEEE80211R
168#ifdef CONFIG_SME
169 if (wpa_s->sme.ft_ies)
170 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
171#endif /* CONFIG_SME */
172#endif /* CONFIG_IEEE80211R */
173
8bac466b
JM		 174 if (bssid_changed)
175 wpas_notify_bssid_changed(wpa_s);
176
6fc6879b
JM		 177 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
178 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
56586197 179 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
6fc6879b
JM		 180 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
181 wpa_s->ap_ies_from_associnfo = 0;
0d30cc24
JM		 182 wpa_s->current_ssid = NULL;
183 wpa_s->key_mgmt = 0;
6fc6879b
JM		 184}
185
186
187static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
188{
189 struct wpa_ie_data ie;
190 int pmksa_set = -1;
191 size_t i;
192
193 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
194 ie.pmkid == NULL)
195 return;
196
197 for (i = 0; i < ie.num_pmkid; i++) {
198 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
199 ie.pmkid + i * PMKID_LEN,
200 NULL, NULL, 0);
201 if (pmksa_set == 0) {
202 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
203 break;
204 }
205 }
206
f049052b
BG		 207 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
208 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
6fc6879b
JM		 209}
210
211
212static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
213 union wpa_event_data *data)
214{
215 if (data == NULL) {
f049052b
BG		 216 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
217 "event");
6fc6879b
JM		 218 return;
219 }
f049052b
BG		 220 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
221 " index=%d preauth=%d",
222 MAC2STR(data->pmkid_candidate.bssid),
223 data->pmkid_candidate.index,
224 data->pmkid_candidate.preauth);
6fc6879b
JM		 225
226 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
227 data->pmkid_candidate.index,
228 data->pmkid_candidate.preauth);
229}
230
231
232static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
233{
234 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
235 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
236 return 0;
237
238#ifdef IEEE8021X_EAPOL
239 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
240 wpa_s->current_ssid &&
241 !(wpa_s->current_ssid->eapol_flags &
242 (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
243 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
244 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
245 * plaintext or static WEP keys). */
246 return 0;
247 }
248#endif /* IEEE8021X_EAPOL */
249
250 return 1;
251}
252
253
254/**
255 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
256 * @wpa_s: pointer to wpa_supplicant data
257 * @ssid: Configuration data for the network
258 * Returns: 0 on success, -1 on failure
259 *
260 * This function is called when starting authentication with a network that is
261 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
262 */
263int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
264 struct wpa_ssid *ssid)
265{
266#ifdef IEEE8021X_EAPOL
b832d34c 267#ifdef PCSC_FUNCS
6fc6879b
JM		 268 int aka = 0, sim = 0, type;
269
270 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
271 return 0;
272
273 if (ssid->eap.eap_methods == NULL) {
274 sim = 1;
275 aka = 1;
276 } else {
277 struct eap_method_type *eap = ssid->eap.eap_methods;
278 while (eap->vendor != EAP_VENDOR_IETF ||
279 eap->method != EAP_TYPE_NONE) {
280 if (eap->vendor == EAP_VENDOR_IETF) {
281 if (eap->method == EAP_TYPE_SIM)
282 sim = 1;
3d332fe7
JM		 283 else if (eap->method == EAP_TYPE_AKA ||
284 eap->method == EAP_TYPE_AKA_PRIME)
6fc6879b
JM		 285 aka = 1;
286 }
287 eap++;
288 }
289 }
290
291 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
292 sim = 0;
3d332fe7
JM		 293 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
294 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
295 NULL)
6fc6879b
JM		 296 aka = 0;
297
298 if (!sim && !aka) {
f049052b
BG		 299 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
300 "use SIM, but neither EAP-SIM nor EAP-AKA are "
301 "enabled");
6fc6879b
JM		 302 return 0;
303 }
304
f049052b
BG		 305 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
306 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
6fc6879b
JM		 307 if (sim && aka)
308 type = SCARD_TRY_BOTH;
309 else if (aka)
310 type = SCARD_USIM_ONLY;
311 else
312 type = SCARD_GSM_SIM_ONLY;
313
f64adcd7 314 wpa_s->scard = scard_init(type, NULL);
6fc6879b 315 if (wpa_s->scard == NULL) {
f049052b
BG		 316 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
317 "(pcsc-lite)");
6fc6879b
JM		 318 return -1;
319 }
320 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
321 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
b832d34c 322#endif /* PCSC_FUNCS */
6fc6879b
JM		 323#endif /* IEEE8021X_EAPOL */
324
325 return 0;
326}
327
328
329#ifndef CONFIG_NO_SCAN_PROCESSING
620c7837 330static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
6fc6879b
JM		 331 struct wpa_ssid *ssid)
332{
333 int i, privacy = 0;
334
335 if (ssid->mixed_cell)
336 return 1;
337
0632542b
AT		 338#ifdef CONFIG_WPS
339 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
340 return 1;
341#endif /* CONFIG_WPS */
342
6fc6879b
JM		 343 for (i = 0; i < NUM_WEP_KEYS; i++) {
344 if (ssid->wep_key_len[i]) {
345 privacy = 1;
346 break;
347 }
348 }
349#ifdef IEEE8021X_EAPOL
350 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
351 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
352 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
353 privacy = 1;
354#endif /* IEEE8021X_EAPOL */
355
29fbc522
JM		 356 if (wpa_key_mgmt_wpa(ssid->key_mgmt))
357 privacy = 1;
358
6fc6879b
JM		 359 if (bss->caps & IEEE80211_CAP_PRIVACY)
360 return privacy;
361 return !privacy;
362}
363
364
a6099152
JM		 365static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
366 struct wpa_ssid *ssid,
620c7837 367 struct wpa_bss *bss)
6fc6879b
JM		 368{
369 struct wpa_ie_data ie;
370 int proto_match = 0;
371 const u8 *rsn_ie, *wpa_ie;
351f09a2 372 int ret;
43882f1e 373 int wep_ok;
6fc6879b 374
a6099152 375 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
351f09a2
JM		 376 if (ret >= 0)
377 return ret;
ad08c363 378
43882f1e
JM		 379 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
380 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
381 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
382 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
383 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
384
620c7837 385 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
6fc6879b
JM		 386 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
387 proto_match++;
388
389 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
f049052b
BG		 390 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse "
391 "failed");
6fc6879b
JM		 392 break;
393 }
43882f1e
JM		 394
395 if (wep_ok &&
396 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
397 {
f049052b
BG		 398 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
399 "in RSN IE");
43882f1e
JM		 400 return 1;
401 }
402
6fc6879b 403 if (!(ie.proto & ssid->proto)) {
f049052b
BG		 404 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto "
405 "mismatch");
6fc6879b
JM		 406 break;
407 }
408
409 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
f049052b
BG		 410 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK "
411 "cipher mismatch");
6fc6879b
JM		 412 break;
413 }
414
415 if (!(ie.group_cipher & ssid->group_cipher)) {
f049052b
BG		 416 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK "
417 "cipher mismatch");
6fc6879b
JM		 418 break;
419 }
420
421 if (!(ie.key_mgmt & ssid->key_mgmt)) {
f049052b
BG		 422 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt "
423 "mismatch");
6fc6879b
JM		 424 break;
425 }
426
427#ifdef CONFIG_IEEE80211W
0b60b0aa 428 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
62d49803
JM		 429 (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ?
430 wpa_s->conf->pmf : ssid->ieee80211w) ==
431 MGMT_FRAME_PROTECTION_REQUIRED) {
f049052b
BG		 432 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt "
433 "frame protection");
6fc6879b
JM		 434 break;
435 }
436#endif /* CONFIG_IEEE80211W */
437
f049052b 438 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE");
6fc6879b
JM		 439 return 1;
440 }
441
620c7837 442 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
6fc6879b
JM		 443 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
444 proto_match++;
445
446 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
f049052b
BG		 447 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse "
448 "failed");
6fc6879b
JM		 449 break;
450 }
43882f1e
JM		 451
452 if (wep_ok &&
453 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
454 {
f049052b
BG		 455 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN "
456 "in WPA IE");
43882f1e
JM		 457 return 1;
458 }
459
6fc6879b 460 if (!(ie.proto & ssid->proto)) {
f049052b
BG		 461 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto "
462 "mismatch");
6fc6879b
JM		 463 break;
464 }
465
466 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
f049052b
BG		 467 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK "
468 "cipher mismatch");
6fc6879b
JM		 469 break;
470 }
471
472 if (!(ie.group_cipher & ssid->group_cipher)) {
f049052b
BG		 473 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK "
474 "cipher mismatch");
6fc6879b
JM		 475 break;
476 }
477
478 if (!(ie.key_mgmt & ssid->key_mgmt)) {
f049052b
BG		 479 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt "
480 "mismatch");
6fc6879b
JM		 481 break;
482 }
483
f049052b 484 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE");
6fc6879b
JM		 485 return 1;
486 }
487
a3f7e518
JM		 488 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
489 !rsn_ie) {
490 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X");
491 return 1;
492 }
493
cc5e390d 494 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
df83fb7d 495 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
f049052b 496 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match");
cc5e390d
JM		 497 return 0;
498 }
6fc6879b 499
c2f1fe41
JM		 500 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
501 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2");
502 return 1;
503 }
504
505 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with "
506 "WPA/WPA2");
507
508 return 0;
6fc6879b
JM		 509}
510
511
b766a9a2
JM		 512static int freq_allowed(int *freqs, int freq)
513{
514 int i;
515
516 if (freqs == NULL)
517 return 1;
518
519 for (i = 0; freqs[i]; i++)
520 if (freqs[i] == freq)
521 return 1;
522 return 0;
523}
524
525
e1e8cae3
CL		 526static int ht_supported(const struct hostapd_hw_modes *mode)
527{
528 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) {
529 /*
530 * The driver did not indicate whether it supports HT. Assume
531 * it does to avoid connection issues.
532 */
533 return 1;
534 }
535
536 /*
537 * IEEE Std 802.11n-2009 20.1.1:
538 * An HT non-AP STA shall support all EQM rates for one spatial stream.
539 */
540 return mode->mcs_set[0] == 0xff;
541}
542
543
620c7837 544static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
e1e8cae3
CL		 545{
546 const struct hostapd_hw_modes *mode = NULL, *modes;
547 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
548 const u8 *rate_ie;
549 int i, j, k;
550
a6d94e1b
JM		 551 if (bss->freq == 0)
552 return 1; /* Cannot do matching without knowing band */
553
e1e8cae3
CL		 554 modes = wpa_s->hw.modes;
555 if (modes == NULL) {
556 /*
557 * The driver does not provide any additional information
558 * about the utilized hardware, so allow the connection attempt
559 * to continue.
560 */
561 return 1;
562 }
563
564 for (i = 0; i < wpa_s->hw.num_modes; i++) {
565 for (j = 0; j < modes[i].num_channels; j++) {
566 int freq = modes[i].channels[j].freq;
567 if (freq == bss->freq) {
568 if (mode &&
569 mode->mode == HOSTAPD_MODE_IEEE80211G)
570 break; /* do not allow 802.11b replace
571 * 802.11g */
572 mode = &modes[i];
573 break;
574 }
575 }
576 }
577
578 if (mode == NULL)
579 return 0;
580
581 for (i = 0; i < (int) sizeof(scan_ie); i++) {
620c7837 582 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
e1e8cae3
CL		 583 if (rate_ie == NULL)
584 continue;
585
586 for (j = 2; j < rate_ie[1] + 2; j++) {
587 int flagged = !!(rate_ie[j] & 0x80);
588 int r = (rate_ie[j] & 0x7f) * 5;
589
590 /*
591 * IEEE Std 802.11n-2009 7.3.2.2:
592 * The new BSS Membership selector value is encoded
593 * like a legacy basic rate, but it is not a rate and
594 * only indicates if the BSS members are required to
595 * support the mandatory features of Clause 20 [HT PHY]
596 * in order to join the BSS.
597 */
598 if (flagged && ((rate_ie[j] & 0x7f) ==
599 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
600 if (!ht_supported(mode)) {
601 wpa_dbg(wpa_s, MSG_DEBUG,
602 " hardware does not support "
603 "HT PHY");
604 return 0;
605 }
606 continue;
607 }
608
609 if (!flagged)
610 continue;
611
612 /* check for legacy basic rates */
613 for (k = 0; k < mode->num_rates; k++) {
614 if (mode->rates[k] == r)
615 break;
616 }
617 if (k == mode->num_rates) {
618 /*
619 * IEEE Std 802.11-2007 7.3.2.2 demands that in
620 * order to join a BSS all required rates
621 * have to be supported by the hardware.
622 */
623 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does "
624 "not support required rate %d.%d Mbps",
625 r / 10, r % 10);
626 return 0;
627 }
628 }
629 }
630
631 return 1;
632}
633
634
d8d940b7 635static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
620c7837 636 int i, struct wpa_bss *bss,
d8d940b7 637 struct wpa_ssid *group)
6fc6879b 638{
620c7837 639 u8 wpa_ie_len, rsn_ie_len;
d8d940b7 640 int wpa;
6fc6879b
JM		 641 struct wpa_blacklist *e;
642 const u8 *ie;
d8d940b7 643 struct wpa_ssid *ssid;
6fc6879b 644
620c7837 645 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
d8d940b7 646 wpa_ie_len = ie ? ie[1] : 0;
6fc6879b 647
620c7837 648 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
d8d940b7 649 rsn_ie_len = ie ? ie[1] : 0;
6fc6879b 650
f049052b
BG		 651 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
652 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
620c7837 653 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
f049052b 654 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
620c7837 655 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
9cf32261 656
d8d940b7 657 e = wpa_blacklist_get(wpa_s, bss->bssid);
5471c343
JM		 658 if (e) {
659 int limit = 1;
349493bd 660 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
5471c343
JM		 661 /*
662 * When only a single network is enabled, we can
663 * trigger blacklisting on the first failure. This
664 * should not be done with multiple enabled networks to
665 * avoid getting forced to move into a worse ESS on
666 * single error if there are no other BSSes of the
667 * current ESS.
668 */
669 limit = 0;
670 }
671 if (e->count > limit) {
f049052b
BG		 672 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
673 "(count=%d limit=%d)", e->count, limit);
c2197bc9 674 return NULL;
5471c343 675 }
d8d940b7 676 }
6fc6879b 677
620c7837 678 if (bss->ssid_len == 0) {
f049052b 679 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known");
c2197bc9 680 return NULL;
d8d940b7 681 }
e81634cd 682
6407f413
JM		 683 if (disallowed_bssid(wpa_s, bss->bssid)) {
684 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed");
685 return NULL;
686 }
687
688 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
689 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed");
690 return NULL;
691 }
692
d8d940b7 693 wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
6fc6879b 694
d8d940b7
JM		 695 for (ssid = group; ssid; ssid = ssid->pnext) {
696 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
00e5e3d5 697 int res;
ad08c363 698
349493bd 699 if (wpas_network_disabled(wpa_s, ssid)) {
f049052b 700 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled");
0c703df3 701 continue;
d8d940b7 702 }
9cf32261 703
00e5e3d5
JM		 704 res = wpas_temp_disabled(wpa_s, ssid);
705 if (res > 0) {
706 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled "
707 "temporarily for %d second(s)", res);
708 continue;
709 }
710
ad08c363 711#ifdef CONFIG_WPS
f648bc7d 712 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
f049052b
BG		 713 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted "
714 "(WPS)");
f648bc7d
JM		 715 continue;
716 }
717
d8d940b7
JM		 718 if (wpa && ssid->ssid_len == 0 &&
719 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
720 check_ssid = 0;
721
722 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
723 /* Only allow wildcard SSID match if an AP
724 * advertises active WPS operation that matches
725 * with our mode. */
726 check_ssid = 1;
ad08c363 727 if (ssid->ssid_len == 0 &&
a6099152 728 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
ad08c363 729 check_ssid = 0;
d8d940b7 730 }
ad08c363
JM		 731#endif /* CONFIG_WPS */
732
7d232e23
ZC		 733 if (ssid->bssid_set && ssid->ssid_len == 0 &&
734 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
735 check_ssid = 0;
736
d8d940b7 737 if (check_ssid &&
620c7837
JM		 738 (bss->ssid_len != ssid->ssid_len ||
739 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
f049052b 740 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch");
0c703df3 741 continue;
6fc6879b 742 }
6fc6879b 743
d8d940b7
JM		 744 if (ssid->bssid_set &&
745 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
f049052b 746 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch");
0c703df3 747 continue;
d8d940b7 748 }
6fc6879b 749
cc5e390d 750 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
0c703df3 751 continue;
9cf32261 752
d8d940b7
JM		 753 if (!wpa &&
754 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
755 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
756 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
f049052b
BG		 757 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network "
758 "not allowed");
0c703df3 759 continue;
6fc6879b 760 }
9cf32261 761
29fbc522 762 if (!wpa_supplicant_match_privacy(bss, ssid)) {
f049052b
BG		 763 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy "
764 "mismatch");
0c703df3 765 continue;
e81634cd
JM		 766 }
767
29fbc522 768 if (bss->caps & IEEE80211_CAP_IBSS) {
f049052b
BG		 769 wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) "
770 "network");
0c703df3 771 continue;
d8d940b7 772 }
b766a9a2 773
d8d940b7 774 if (!freq_allowed(ssid->freq_list, bss->freq)) {
f049052b
BG		 775 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not "
776 "allowed");
0c703df3 777 continue;
6fc6879b 778 }
d8d940b7 779
e1e8cae3
CL		 780 if (!rate_match(wpa_s, bss)) {
781 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do "
782 "not match");
783 continue;
784 }
785
73e49269
JM		 786#ifdef CONFIG_P2P
787 /*
788 * TODO: skip the AP if its P2P IE has Group Formation
789 * bit set in the P2P Group Capability Bitmap and we
790 * are not in Group Formation with that device.
791 */
792#endif /* CONFIG_P2P */
793
d8d940b7
JM		 794 /* Matching configuration found */
795 return ssid;
6fc6879b
JM		 796 }
797
d8d940b7 798 /* No matching configuration found */
c2197bc9 799 return NULL;
9cf32261
JM		 800}
801
802
6fa81a3b 803static struct wpa_bss *
a1fd2ce5 804wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
a1fd2ce5 805 struct wpa_ssid *group,
9cf32261
JM		 806 struct wpa_ssid **selected_ssid)
807{
620c7837 808 unsigned int i;
9cf32261 809
f049052b
BG		 810 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
811 group->priority);
9cf32261 812
620c7837
JM		 813 for (i = 0; i < wpa_s->last_scan_res_used; i++) {
814 struct wpa_bss *bss = wpa_s->last_scan_res[i];
d8d940b7
JM		 815 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
816 if (!*selected_ssid)
817 continue;
f049052b
BG		 818 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR
819 " ssid='%s'",
620c7837
JM		 820 MAC2STR(bss->bssid),
821 wpa_ssid_txt(bss->ssid, bss->ssid_len));
822 return bss;
d8d940b7
JM		 823 }
824
825 return NULL;
6fc6879b
JM		 826}
827
828
6fa81a3b 829static struct wpa_bss *
09b9df4e
JM		 830wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
831 struct wpa_ssid **selected_ssid)
6fc6879b 832{
6fa81a3b 833 struct wpa_bss *selected = NULL;
09b9df4e
JM		 834 int prio;
835
620c7837
JM		 836 if (wpa_s->last_scan_res == NULL ||
837 wpa_s->last_scan_res_used == 0)
838 return NULL; /* no scan results from last update */
839
09b9df4e
JM		 840 while (selected == NULL) {
841 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
842 selected = wpa_supplicant_select_bss(
620c7837 843 wpa_s, wpa_s->conf->pssid[prio],
09b9df4e
JM		 844 selected_ssid);
845 if (selected)
846 break;
847 }
848
8945cc45
BM		 849 if (selected == NULL && wpa_s->blacklist &&
850 !wpa_s->countermeasures) {
f049052b
BG		 851 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
852 "blacklist and try again");
09b9df4e
JM		 853 wpa_blacklist_clear(wpa_s);
854 wpa_s->blacklist_cleared++;
855 } else if (selected == NULL)
856 break;
857 }
858
859 return selected;
860}
861
862
863static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
977b1174 864 int timeout_sec, int timeout_usec)
09b9df4e 865{
349493bd 866 if (!wpa_supplicant_enabled_networks(wpa_s)) {
4f34d51a
SL		 867 /*
868 * No networks are enabled; short-circuit request so
869 * we don't wait timeout seconds before transitioning
870 * to INACTIVE state.
871 */
ac06fb12
JM		 872 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
873 "since there are no enabled networks");
4f34d51a 874 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
4c490780
JM		 875#ifdef CONFIG_P2P
876 wpa_s->sta_scan_pending = 0;
877#endif /* CONFIG_P2P */
4f34d51a 878 return;
09b9df4e 879 }
5cc70322
JM		 880
881 wpa_s->scan_for_connection = 1;
977b1174 882 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
09b9df4e
JM		 883}
884
885
5cbd88d9
JJ		 886int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
887 struct wpa_bss *selected,
888 struct wpa_ssid *ssid)
09b9df4e
JM		 889{
890 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
891 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
892 "PBC session overlap");
b73bf0a7
JM		 893#ifdef CONFIG_P2P
894 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
5cbd88d9 895 return -1;
b73bf0a7 896#endif /* CONFIG_P2P */
199716ad
BG		 897
898#ifdef CONFIG_WPS
7736f18b 899 wpas_wps_cancel(wpa_s);
199716ad 900#endif /* CONFIG_WPS */
5cbd88d9 901 return -1;
09b9df4e
JM		 902 }
903
904 /*
905 * Do not trigger new association unless the BSSID has changed or if
906 * reassociation is requested. If we are in process of associating with
907 * the selected BSSID, do not trigger new attempt.
908 */
909 if (wpa_s->reassociate ||
910 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
e29853bb
BG		 911 ((wpa_s->wpa_state != WPA_ASSOCIATING &&
912 wpa_s->wpa_state != WPA_AUTHENTICATING) ||
09b9df4e
JM		 913 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
914 0))) {
915 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
977b1174 916 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
5cbd88d9 917 return 0;
09b9df4e 918 }
e29853bb
BG		 919 wpa_msg(wpa_s, MSG_DEBUG, "Request association: "
920 "reassociate: %d selected: "MACSTR " bssid: " MACSTR
921 " pending: " MACSTR " wpa_state: %s",
922 wpa_s->reassociate, MAC2STR(selected->bssid),
923 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
924 wpa_supplicant_state_txt(wpa_s->wpa_state));
09b9df4e
JM		 925 wpa_supplicant_associate(wpa_s, selected, ssid);
926 } else {
f049052b
BG		 927 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the "
928 "selected AP");
09b9df4e 929 }
5cbd88d9
JJ		 930
931 return 0;
09b9df4e
JM		 932}
933
934
b55aaa5f
JM		 935static struct wpa_ssid *
936wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
937{
938 int prio;
939 struct wpa_ssid *ssid;
940
941 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
942 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
943 {
349493bd 944 if (wpas_network_disabled(wpa_s, ssid))
b55aaa5f
JM		 945 continue;
946 if (ssid->mode == IEEE80211_MODE_IBSS ||
947 ssid->mode == IEEE80211_MODE_AP)
948 return ssid;
949 }
950 }
951 return NULL;
952}
953
954
a1fd2ce5
JM		 955/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
956 * on BSS added and BSS changed events */
6ae93185 957static void wpa_supplicant_rsn_preauth_scan_results(
6d28fb96 958 struct wpa_supplicant *wpa_s)
6ae93185 959{
6d28fb96 960 struct wpa_bss *bss;
6ae93185
JM		 961
962 if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
963 return;
964
6d28fb96 965 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
6ae93185 966 const u8 *ssid, *rsn;
6ae93185 967
6d28fb96 968 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
6ae93185
JM		 969 if (ssid == NULL)
970 continue;
971
6d28fb96 972 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
6ae93185
JM		 973 if (rsn == NULL)
974 continue;
975
6d28fb96 976 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
6ae93185
JM		 977 }
978
979}
980
981
48563d86
JM		 982static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
983 struct wpa_bss *selected,
20ed5e40 984 struct wpa_ssid *ssid)
48563d86 985{
20ed5e40 986 struct wpa_bss *current_bss = NULL;
48563d86
JM		 987 int min_diff;
988
989 if (wpa_s->reassociate)
990 return 1; /* explicit request to reassociate */
991 if (wpa_s->wpa_state < WPA_ASSOCIATED)
992 return 1; /* we are not associated; continue */
993 if (wpa_s->current_ssid == NULL)
994 return 1; /* unknown current SSID */
995 if (wpa_s->current_ssid != ssid)
996 return 1; /* different network block */
997
22628eca
JM		 998 if (wpas_driver_bss_selection(wpa_s))
999 return 0; /* Driver-based roaming */
1000
20ed5e40
JM		 1001 if (wpa_s->current_ssid->ssid)
1002 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1003 wpa_s->current_ssid->ssid,
1004 wpa_s->current_ssid->ssid_len);
1005 if (!current_bss)
1006 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
48563d86
JM		 1007
1008 if (!current_bss)
1009 return 1; /* current BSS not seen in scan results */
1010
20ed5e40
JM		 1011 if (current_bss == selected)
1012 return 0;
1013
1014 if (selected->last_update_idx > current_bss->last_update_idx)
1015 return 1; /* current BSS not seen in the last scan */
1016
e9af53ad 1017#ifndef CONFIG_NO_ROAMING
f049052b
BG		 1018 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1019 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
1020 MAC2STR(current_bss->bssid), current_bss->level);
1021 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
1022 MAC2STR(selected->bssid), selected->level);
48563d86 1023
ac26ebd8
JM		 1024 if (wpa_s->current_ssid->bssid_set &&
1025 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1026 0) {
f049052b
BG		 1027 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1028 "has preferred BSSID");
ac26ebd8
JM		 1029 return 1;
1030 }
1031
bff954e9
RS		 1032 if (current_bss->level < 0 && current_bss->level > selected->level) {
1033 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1034 "signal level");
1035 return 0;
1036 }
1037
48563d86
JM		 1038 min_diff = 2;
1039 if (current_bss->level < 0) {
1040 if (current_bss->level < -85)
1041 min_diff = 1;
1042 else if (current_bss->level < -80)
1043 min_diff = 2;
1044 else if (current_bss->level < -75)
1045 min_diff = 3;
1046 else if (current_bss->level < -70)
1047 min_diff = 4;
1048 else
1049 min_diff = 5;
1050 }
1051 if (abs(current_bss->level - selected->level) < min_diff) {
f049052b
BG		 1052 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1053 "in signal level");
48563d86
JM		 1054 return 0;
1055 }
1056
1057 return 1;
e9af53ad
DS		 1058#else /* CONFIG_NO_ROAMING */
1059 return 0;
1060#endif /* CONFIG_NO_ROAMING */
48563d86
JM		 1061}
1062
cd2f4ddf 1063
0dd54313 1064/* Return != 0 if no scan results could be fetched or if scan results should not
10ac7ddf 1065 * be shared with other virtual interfaces. */
e1504976
BG		 1066static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1067 union wpa_event_data *data)
09b9df4e 1068{
a1fd2ce5 1069 struct wpa_scan_results *scan_res;
5bc0cdb7 1070 int ap = 0;
7b1aa4fe
JM		 1071#ifndef CONFIG_NO_RANDOM_POOL
1072 size_t i, num;
1073#endif /* CONFIG_NO_RANDOM_POOL */
5bc0cdb7
JM		 1074
1075#ifdef CONFIG_AP
1076 if (wpa_s->ap_iface)
1077 ap = 1;
1078#endif /* CONFIG_AP */
6fc6879b 1079
cb8564b1
DW		 1080 wpa_supplicant_notify_scanning(wpa_s, 0);
1081
39185dfa 1082#ifdef CONFIG_P2P
e665ca9a
JM		 1083 if (wpa_s->global->p2p_cb_on_scan_complete &&
1084 !wpa_s->global->p2p_disabled &&
4c490780
JM		 1085 wpa_s->global->p2p != NULL && !wpa_s->sta_scan_pending &&
1086 !wpa_s->scan_res_handler) {
e665ca9a 1087 wpa_s->global->p2p_cb_on_scan_complete = 0;
39185dfa
JM		 1088 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
1089 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
1090 "stopped scan processing");
ab03f6da
JM		 1091 wpa_s->sta_scan_pending = 1;
1092 wpa_supplicant_req_scan(wpa_s, 5, 0);
39185dfa
JM		 1093 return -1;
1094 }
1095 }
99fcd404 1096 wpa_s->sta_scan_pending = 0;
39185dfa
JM		 1097#endif /* CONFIG_P2P */
1098
a1fd2ce5
JM		 1099 scan_res = wpa_supplicant_get_scan_results(wpa_s,
1100 data ? &data->scan_info :
1101 NULL, 1);
1102 if (scan_res == NULL) {
5bc0cdb7 1103 if (wpa_s->conf->ap_scan == 2 || ap)
e1504976 1104 return -1;
f049052b
BG		 1105 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1106 "scanning again");
977b1174 1107 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
e1504976 1108 return -1;
6fc6879b
JM		 1109 }
1110
bbb921da 1111#ifndef CONFIG_NO_RANDOM_POOL
bbb921da
JM		 1112 num = scan_res->num;
1113 if (num > 10)
1114 num = 10;
1115 for (i = 0; i < num; i++) {
1116 u8 buf[5];
1117 struct wpa_scan_res *res = scan_res->res[i];
1118 buf[0] = res->bssid[5];
1119 buf[1] = res->qual & 0xff;
1120 buf[2] = res->noise & 0xff;
1121 buf[3] = res->level & 0xff;
1122 buf[4] = res->tsf & 0xff;
1123 random_add_randomness(buf, sizeof(buf));
1124 }
1125#endif /* CONFIG_NO_RANDOM_POOL */
1126
64e58f51 1127 if (wpa_s->scan_res_handler) {
860fddbb
JB		 1128 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1129 struct wpa_scan_results *scan_res);
1130
1131 scan_res_handler = wpa_s->scan_res_handler;
64e58f51 1132 wpa_s->scan_res_handler = NULL;
860fddbb
JB		 1133 scan_res_handler(wpa_s, scan_res);
1134
64e58f51 1135 wpa_scan_results_free(scan_res);
10ac7ddf 1136 return -2;
64e58f51
JM		 1137 }
1138
5bc0cdb7 1139 if (ap) {
f049052b 1140 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
c202f19c
JB		 1141#ifdef CONFIG_AP
1142 if (wpa_s->ap_iface->scan_cb)
1143 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1144#endif /* CONFIG_AP */
5bc0cdb7 1145 wpa_scan_results_free(scan_res);
e1504976 1146 return 0;
5bc0cdb7
JM		 1147 }
1148
f049052b 1149 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
24f76940
JM		 1150 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1151 wpas_notify_scan_results(wpa_s);
6fc6879b 1152
8bac466b
JM		 1153 wpas_notify_scan_done(wpa_s, 1);
1154
c3701c66
RM		 1155 if (sme_proc_obss_scan(wpa_s) > 0) {
1156 wpa_scan_results_free(scan_res);
1157 return 0;
1158 }
1159
a1fd2ce5
JM		 1160 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
1161 wpa_scan_results_free(scan_res);
e1504976 1162 return 0;
a1fd2ce5 1163 }
6fc6879b 1164
7c865c68
TB		 1165 if (autoscan_notify_scan(wpa_s, scan_res)) {
1166 wpa_scan_results_free(scan_res);
1167 return 0;
1168 }
1169
3180d7a2
SO		 1170 if (wpa_s->disconnected) {
1171 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
a1fd2ce5 1172 wpa_scan_results_free(scan_res);
e1504976 1173 return 0;
3180d7a2
SO		 1174 }
1175
22628eca
JM		 1176 if (!wpas_driver_bss_selection(wpa_s) &&
1177 bgscan_notify_scan(wpa_s, scan_res) == 1) {
a1fd2ce5 1178 wpa_scan_results_free(scan_res);
e1504976 1179 return 0;
a1fd2ce5
JM		 1180 }
1181
f9f0526b
JM		 1182 wpas_wps_update_ap_info(wpa_s, scan_res);
1183
20ed5e40
JM		 1184 wpa_scan_results_free(scan_res);
1185
a594e2a9
JM		 1186 return wpas_select_network_from_last_scan(wpa_s);
1187}
1188
1189
1190int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s)
1191{
1192 struct wpa_bss *selected;
1193 struct wpa_ssid *ssid = NULL;
1194
620c7837
JM		 1195 selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1196
6fc6879b 1197 if (selected) {
48563d86 1198 int skip;
20ed5e40 1199 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1bbff09e
JM		 1200 if (skip) {
1201 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
e1504976 1202 return 0;
1bbff09e 1203 }
5cbd88d9
JJ		 1204
1205 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1206 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1207 return -1;
1208 }
6d28fb96 1209 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
0dd54313
JM		 1210 /*
1211 * Do not notify other virtual radios of scan results since we do not
1212 * want them to start other associations at the same time.
1213 */
1214 return 1;
6fc6879b 1215 } else {
f049052b 1216 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
b55aaa5f
JM		 1217 ssid = wpa_supplicant_pick_new_network(wpa_s);
1218 if (ssid) {
f049052b 1219 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
b55aaa5f 1220 wpa_supplicant_associate(wpa_s, NULL, ssid);
6d28fb96 1221 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
977b1174 1222 } else {
67b9bd08 1223 int timeout_sec = wpa_s->scan_interval;
977b1174 1224 int timeout_usec = 0;
0817de90 1225#ifdef CONFIG_P2P
aa9bb764
JM		 1226 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1)
1227 return 0;
1228
0817de90
JM		 1229 if (wpa_s->p2p_in_provisioning) {
1230 /*
1231 * Use shorter wait during P2P Provisioning
1232 * state to speed up group formation.
1233 */
1234 timeout_sec = 0;
1235 timeout_usec = 250000;
a4cba8f1
LC		 1236 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1237 timeout_usec);
1238 return 0;
0817de90
JM		 1239 }
1240#endif /* CONFIG_P2P */
4d5bda5f
JM		 1241#ifdef CONFIG_INTERWORKING
1242 if (wpa_s->conf->auto_interworking &&
1243 wpa_s->conf->interworking &&
1244 wpa_s->conf->cred) {
1245 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1246 "start ANQP fetch since no matching "
1247 "networks found");
1248 wpa_s->network_select = 1;
1249 wpa_s->auto_network_select = 1;
1250 interworking_start_fetch_anqp(wpa_s);
0dd54313 1251 return 1;
4d5bda5f
JM		 1252 }
1253#endif /* CONFIG_INTERWORKING */
a4cba8f1
LC		 1254 if (wpa_supplicant_req_sched_scan(wpa_s))
1255 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1256 timeout_usec);
977b1174 1257 }
6fc6879b 1258 }
e1504976 1259 return 0;
6fc6879b 1260}
6859f1cb
BG		 1261
1262
1263static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1264 union wpa_event_data *data)
1265{
1266 const char *rn, *rn2;
1267 struct wpa_supplicant *ifs;
1268
0dd54313 1269 if (_wpa_supplicant_event_scan_results(wpa_s, data) != 0) {
e1504976
BG		 1270 /*
1271 * If no scan results could be fetched, then no need to
1272 * notify those interfaces that did not actually request
0dd54313
JM		 1273 * this scan. Similarly, if scan results started a new operation on this
1274 * interface, do not notify other interfaces to avoid concurrent
1275 * operations during a connection attempt.
e1504976
BG		 1276 */
1277 return;
1278 }
6859f1cb
BG		 1279
1280 /*
1281 * Check other interfaces to see if they have the same radio-name. If
1282 * so, they get updated with this same scan info.
1283 */
1284 if (!wpa_s->driver->get_radio_name)
1285 return;
1286
1287 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
1288 if (rn == NULL || rn[0] == '\0')
1289 return;
1290
f049052b
BG		 1291 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces "
1292 "sharing same radio (%s) in event_scan_results", rn);
6859f1cb
BG		 1293
1294 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
1295 if (ifs == wpa_s || !ifs->driver->get_radio_name)
1296 continue;
1297
1298 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
1299 if (rn2 && os_strcmp(rn, rn2) == 0) {
1300 wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1301 "sibling", ifs->ifname);
1302 _wpa_supplicant_event_scan_results(ifs, data);
1303 }
1304 }
1305}
1306
6fc6879b
JM		 1307#endif /* CONFIG_NO_SCAN_PROCESSING */
1308
1309
b6668734
JM		 1310#ifdef CONFIG_WNM
1311
1312static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1313{
1314 struct wpa_supplicant *wpa_s = eloop_ctx;
1315
1316 if (wpa_s->wpa_state < WPA_ASSOCIATED)
1317 return;
1318
2ec535fd
JM		 1319 if (!wpa_s->no_keep_alive) {
1320 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1321 MAC2STR(wpa_s->bssid));
1322 /* TODO: could skip this if normal data traffic has been sent */
1323 /* TODO: Consider using some more appropriate data frame for
1324 * this */
1325 if (wpa_s->l2)
1326 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1327 (u8 *) "", 0);
1328 }
b6668734 1329
597c7a8d 1330#ifdef CONFIG_SME
b6668734
JM		 1331 if (wpa_s->sme.bss_max_idle_period) {
1332 unsigned int msec;
1333 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1334 if (msec > 100)
1335 msec -= 100;
1336 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1337 wnm_bss_keep_alive, wpa_s, NULL);
1338 }
597c7a8d 1339#endif /* CONFIG_SME */
b6668734
JM		 1340}
1341
1342
1343static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1344 const u8 *ies, size_t ies_len)
1345{
1346 struct ieee802_11_elems elems;
1347
1348 if (ies == NULL)
1349 return;
1350
1351 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1352 return;
1353
1354#ifdef CONFIG_SME
1355 if (elems.bss_max_idle_period) {
1356 unsigned int msec;
1357 wpa_s->sme.bss_max_idle_period =
1358 WPA_GET_LE16(elems.bss_max_idle_period);
1359 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1360 "TU)%s", wpa_s->sme.bss_max_idle_period,
1361 (elems.bss_max_idle_period[2] & 0x01) ?
1362 " (protected keep-live required)" : "");
1363 if (wpa_s->sme.bss_max_idle_period == 0)
1364 wpa_s->sme.bss_max_idle_period = 1;
1365 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1366 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1367 /* msec times 1000 */
1368 msec = wpa_s->sme.bss_max_idle_period * 1024;
1369 if (msec > 100)
1370 msec -= 100;
1371 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1372 wnm_bss_keep_alive, wpa_s,
1373 NULL);
1374 }
1375 }
1376#endif /* CONFIG_SME */
1377}
1378
1379#endif /* CONFIG_WNM */
1380
1381
1382void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1383{
1384#ifdef CONFIG_WNM
1385 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1386#endif /* CONFIG_WNM */
1387}
1388
1389
579ce771
JM		 1390static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1391 union wpa_event_data *data)
6fc6879b
JM		 1392{
1393 int l, len, found = 0, wpa_found, rsn_found;
c2a04078 1394 const u8 *p;
6fc6879b 1395
f049052b 1396 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
6fc6879b
JM		 1397 if (data->assoc_info.req_ies)
1398 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1399 data->assoc_info.req_ies_len);
52c9e6f3 1400 if (data->assoc_info.resp_ies) {
6fc6879b
JM		 1401 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1402 data->assoc_info.resp_ies_len);
52c9e6f3
JM		 1403#ifdef CONFIG_TDLS
1404 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1405 data->assoc_info.resp_ies_len);
1406#endif /* CONFIG_TDLS */
b6668734
JM		 1407#ifdef CONFIG_WNM
1408 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1409 data->assoc_info.resp_ies_len);
1410#endif /* CONFIG_WNM */
52c9e6f3 1411 }
6fc6879b
JM		 1412 if (data->assoc_info.beacon_ies)
1413 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1414 data->assoc_info.beacon_ies,
1415 data->assoc_info.beacon_ies_len);
4832ecd7 1416 if (data->assoc_info.freq)
f049052b
BG		 1417 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1418 data->assoc_info.freq);
6fc6879b
JM		 1419
1420 p = data->assoc_info.req_ies;
1421 l = data->assoc_info.req_ies_len;
1422
1423 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1424 while (p && l >= 2) {
1425 len = p[1] + 2;
1426 if (len > l) {
1427 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1428 p, l);
1429 break;
1430 }
1431 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1432 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1433 (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1434 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1435 break;
1436 found = 1;
1437 wpa_find_assoc_pmkid(wpa_s);
1438 break;
1439 }
1440 l -= len;
1441 p += len;
1442 }
1443 if (!found && data->assoc_info.req_ies)
1444 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1445
c2a04078 1446#ifdef CONFIG_IEEE80211R
62c72d72
JM		 1447#ifdef CONFIG_SME
1448 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1449 u8 bssid[ETH_ALEN];
1450 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1451 wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1452 data->assoc_info.resp_ies,
1453 data->assoc_info.resp_ies_len,
1454 bssid) < 0) {
f049052b
BG		 1455 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1456 "Reassociation Response failed");
579ce771
JM		 1457 wpa_supplicant_deauthenticate(
1458 wpa_s, WLAN_REASON_INVALID_IE);
1459 return -1;
62c72d72
JM		 1460 }
1461 }
62c72d72 1462
c2a04078
JM		 1463 p = data->assoc_info.resp_ies;
1464 l = data->assoc_info.resp_ies_len;
1465
54f489be 1466#ifdef CONFIG_WPS_STRICT
5dac11e0 1467 if (p && wpa_s->current_ssid &&
54f489be
JM		 1468 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1469 struct wpabuf *wps;
1470 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1471 if (wps == NULL) {
f049052b
BG		 1472 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1473 "include WPS IE in (Re)Association Response");
54f489be
JM		 1474 return -1;
1475 }
1476
1477 if (wps_validate_assoc_resp(wps) < 0) {
1478 wpabuf_free(wps);
1479 wpa_supplicant_deauthenticate(
1480 wpa_s, WLAN_REASON_INVALID_IE);
1481 return -1;
1482 }
1483 wpabuf_free(wps);
1484 }
1485#endif /* CONFIG_WPS_STRICT */
1486
e7846b68 1487 /* Go through the IEs and make a copy of the MDIE, if present. */
c2a04078
JM		 1488 while (p && l >= 2) {
1489 len = p[1] + 2;
1490 if (len > l) {
1491 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1492 p, l);
1493 break;
1494 }
e7846b68
JM		 1495 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1496 p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1497 wpa_s->sme.ft_used = 1;
1498 os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1499 MOBILITY_DOMAIN_ID_LEN);
1500 break;
1501 }
c2a04078
JM		 1502 l -= len;
1503 p += len;
1504 }
e7846b68 1505#endif /* CONFIG_SME */
c2a04078 1506
e7846b68
JM		 1507 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1508 data->assoc_info.resp_ies_len);
c2a04078
JM		 1509#endif /* CONFIG_IEEE80211R */
1510
6fc6879b
JM		 1511 /* WPA/RSN IE from Beacon/ProbeResp */
1512 p = data->assoc_info.beacon_ies;
1513 l = data->assoc_info.beacon_ies_len;
1514
1515 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1516 */
1517 wpa_found = rsn_found = 0;
1518 while (p && l >= 2) {
1519 len = p[1] + 2;
1520 if (len > l) {
1521 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1522 p, l);
1523 break;
1524 }
1525 if (!wpa_found &&
1526 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1527 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1528 wpa_found = 1;
1529 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1530 }
1531
1532 if (!rsn_found &&
1533 p[0] == WLAN_EID_RSN && p[1] >= 2) {
1534 rsn_found = 1;
1535 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1536 }
1537
1538 l -= len;
1539 p += len;
1540 }
1541
1542 if (!wpa_found && data->assoc_info.beacon_ies)
1543 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1544 if (!rsn_found && data->assoc_info.beacon_ies)
1545 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1546 if (wpa_found || rsn_found)
1547 wpa_s->ap_ies_from_associnfo = 1;
4832ecd7 1548
117e812d
JM		 1549 if (wpa_s->assoc_freq && data->assoc_info.freq &&
1550 wpa_s->assoc_freq != data->assoc_info.freq) {
1551 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1552 "%u to %u MHz",
1553 wpa_s->assoc_freq, data->assoc_info.freq);
1554 wpa_supplicant_update_scan_results(wpa_s);
1555 }
1556
4832ecd7 1557 wpa_s->assoc_freq = data->assoc_info.freq;
579ce771
JM		 1558
1559 return 0;
6fc6879b
JM		 1560}
1561
1562
cd2f4ddf
SM		 1563static struct wpa_bss * wpa_supplicant_get_new_bss(
1564 struct wpa_supplicant *wpa_s, const u8 *bssid)
1565{
1566 struct wpa_bss *bss = NULL;
1567 struct wpa_ssid *ssid = wpa_s->current_ssid;
1568
1569 if (ssid->ssid_len > 0)
1570 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
1571 if (!bss)
1572 bss = wpa_bss_get_bssid(wpa_s, bssid);
1573
1574 return bss;
1575}
1576
1577
ad9ee4d4
JM		 1578static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
1579{
1580 const u8 *bss_wpa = NULL, *bss_rsn = NULL;
1581
1582 if (!wpa_s->current_bss || !wpa_s->current_ssid)
1583 return -1;
1584
1585 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
1586 return 0;
1587
1588 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
1589 WPA_IE_VENDOR_TYPE);
1590 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
1591
1592 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1593 bss_wpa ? 2 + bss_wpa[1] : 0) ||
1594 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1595 bss_rsn ? 2 + bss_rsn[1] : 0))
1596 return -1;
1597
1598 return 0;
1599}
1600
1601
6fc6879b
JM		 1602static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1603 union wpa_event_data *data)
1604{
1605 u8 bssid[ETH_ALEN];
1d041bec 1606 int ft_completed;
0194fedb 1607 struct wpa_driver_capa capa;
6fc6879b 1608
1d041bec
JM		 1609#ifdef CONFIG_AP
1610 if (wpa_s->ap_iface) {
1611 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1612 data->assoc_info.addr,
1613 data->assoc_info.req_ies,
39b08b5f
SP		 1614 data->assoc_info.req_ies_len,
1615 data->assoc_info.reassoc);
1d041bec
JM		 1616 return;
1617 }
1618#endif /* CONFIG_AP */
1619
1620 ft_completed = wpa_ft_is_completed(wpa_s->wpa);
579ce771
JM		 1621 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1622 return;
6fc6879b 1623
0a0c38f6
MH		 1624 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
1625 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
07783eaa 1626 wpa_supplicant_deauthenticate(
0a0c38f6
MH		 1627 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1628 return;
1629 }
1630
6fc6879b 1631 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
0a0c38f6 1632 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
f049052b 1633 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
6fc6879b 1634 MACSTR, MAC2STR(bssid));
bbb921da 1635 random_add_randomness(bssid, ETH_ALEN);
6fc6879b
JM		 1636 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1637 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
e485286c 1638 wpas_notify_bssid_changed(wpa_s);
8bac466b 1639
6fc6879b
JM		 1640 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1641 wpa_clear_keys(wpa_s, bssid);
1642 }
1643 if (wpa_supplicant_select_config(wpa_s) < 0) {
07783eaa 1644 wpa_supplicant_deauthenticate(
6fc6879b
JM		 1645 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1646 return;
1647 }
8f770587
JM		 1648 if (wpa_s->current_ssid) {
1649 struct wpa_bss *bss = NULL;
cd2f4ddf
SM		 1650
1651 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
1652 if (!bss) {
1653 wpa_supplicant_update_scan_results(wpa_s);
1654
1655 /* Get the BSS from the new scan results */
1656 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
1657 }
1658
8f770587
JM		 1659 if (bss)
1660 wpa_s->current_bss = bss;
1661 }
cd2f4ddf
SM		 1662
1663 if (wpa_s->conf->ap_scan == 1 &&
1664 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
1665 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0)
1666 wpa_msg(wpa_s, MSG_WARNING,
1667 "WPA/RSN IEs not updated");
1668 }
6fc6879b
JM		 1669 }
1670
62fa124c
JM		 1671#ifdef CONFIG_SME
1672 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1673 wpa_s->sme.prev_bssid_set = 1;
1674#endif /* CONFIG_SME */
1675
6fc6879b
JM		 1676 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1677 if (wpa_s->current_ssid) {
1678 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1679 * initialized before association, but for other modes,
1680 * initialize PC/SC here, if the current configuration needs
1681 * smartcard or SIM/USIM. */
1682 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1683 }
1684 wpa_sm_notify_assoc(wpa_s->wpa, bssid);
3f967fe0
JM		 1685 if (wpa_s->l2)
1686 l2_packet_notify_auth_start(wpa_s->l2);
6fc6879b
JM		 1687
1688 /*
1689 * Set portEnabled first to FALSE in order to get EAP state machine out
1690 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1691 * state machine may transit to AUTHENTICATING state based on obsolete
1692 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1693 * AUTHENTICATED without ever giving chance to EAP state machine to
1694 * reset the state.
1695 */
1696 if (!ft_completed) {
1697 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1698 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1699 }
56586197 1700 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
6fc6879b
JM		 1701 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1702 /* 802.1X::portControl = Auto */
1703 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1704 wpa_s->eapol_received = 0;
1705 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
9c972abb
JM		 1706 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1707 (wpa_s->current_ssid &&
1708 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
6fc6879b
JM		 1709 wpa_supplicant_cancel_auth_timeout(wpa_s);
1710 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1711 } else if (!ft_completed) {
1712 /* Timeout for receiving the first EAPOL packet */
1713 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1714 }
1715 wpa_supplicant_cancel_scan(wpa_s);
1716
c2a04078 1717 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
56586197 1718 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
6fc6879b
JM		 1719 /*
1720 * We are done; the driver will take care of RSN 4-way
1721 * handshake.
1722 */
1723 wpa_supplicant_cancel_auth_timeout(wpa_s);
1724 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1725 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1726 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
98ea9431
JM		 1727 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1728 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1729 /*
1730 * The driver will take care of RSN 4-way handshake, so we need
1731 * to allow EAPOL supplicant to complete its work without
1732 * waiting for WPA supplicant.
1733 */
1734 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
16a83d29
JM		 1735 } else if (ft_completed) {
1736 /*
1737 * FT protocol completed - make sure EAPOL state machine ends
1738 * up in authenticated.
1739 */
1740 wpa_supplicant_cancel_auth_timeout(wpa_s);
1741 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1742 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1743 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
6fc6879b 1744 }
1ff73338
JM		 1745
1746 if (wpa_s->pending_eapol_rx) {
1747 struct os_time now, age;
1748 os_get_time(&now);
1749 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1750 if (age.sec == 0 && age.usec < 100000 &&
1751 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1752 0) {
f049052b
BG		 1753 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
1754 "frame that was received just before "
1755 "association notification");
1ff73338
JM		 1756 wpa_supplicant_rx_eapol(
1757 wpa_s, wpa_s->pending_eapol_rx_src,
1758 wpabuf_head(wpa_s->pending_eapol_rx),
1759 wpabuf_len(wpa_s->pending_eapol_rx));
1760 }
1761 wpabuf_free(wpa_s->pending_eapol_rx);
1762 wpa_s->pending_eapol_rx = NULL;
1763 }
60b94c98 1764
0194fedb
JB		 1765 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1766 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
1767 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1768 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
1769 /* Set static WEP keys again */
1770 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
1771 }
50b05780
JM		 1772
1773#ifdef CONFIG_IBSS_RSN
1774 if (wpa_s->current_ssid &&
1775 wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
1776 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
78177a00
JM		 1777 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
1778 wpa_s->ibss_rsn == NULL) {
1779 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
1780 if (!wpa_s->ibss_rsn) {
1781 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
1782 wpa_supplicant_deauthenticate(
1783 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1784 return;
1785 }
1786
1787 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
1788 }
50b05780 1789#endif /* CONFIG_IBSS_RSN */
f9f0526b
JM		 1790
1791 wpas_wps_notify_assoc(wpa_s, bssid);
6fc6879b
JM		 1792}
1793
1794
d00821e9
JM		 1795static int disconnect_reason_recoverable(u16 reason_code)
1796{
1797 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
1798 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
1799 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
1800}
1801
1802
0544b242 1803static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
3d9975d5
JM		 1804 u16 reason_code,
1805 int locally_generated)
6fc6879b
JM		 1806{
1807 const u8 *bssid;
0aadd568
JM		 1808
1809 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1810 /*
1811 * At least Host AP driver and a Prism3 card seemed to be
1812 * generating streams of disconnected events when configuring
1813 * IBSS for WPA-None. Ignore them for now.
1814 */
1815 return;
1816 }
1817
1818 bssid = wpa_s->bssid;
1819 if (is_zero_ether_addr(bssid))
1820 bssid = wpa_s->pending_bssid;
1821
1822 if (!is_zero_ether_addr(bssid) ||
1823 wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1824 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
1825 " reason=%d%s",
1826 MAC2STR(bssid), reason_code,
1827 locally_generated ? " locally_generated=1" : "");
1828 }
1829}
1830
1831
c9a82218
JM		 1832static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
1833 int locally_generated)
1834{
1835 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
1836 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
1837 return 0; /* Not in 4-way handshake with PSK */
1838
1839 /*
1840 * It looks like connection was lost while trying to go through PSK
1841 * 4-way handshake. Filter out known disconnection cases that are caused
1842 * by something else than PSK mismatch to avoid confusing reports.
1843 */
1844
1845 if (locally_generated) {
1846 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
1847 return 0;
1848 }
1849
1850 return 1;
1851}
1852
1853
0aadd568
JM		 1854static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
1855 u16 reason_code,
1856 int locally_generated)
1857{
1858 const u8 *bssid;
6d6f4bb8
JM		 1859 int authenticating;
1860 u8 prev_pending_bssid[ETH_ALEN];
d00821e9
JM		 1861 struct wpa_bss *fast_reconnect = NULL;
1862 struct wpa_ssid *fast_reconnect_ssid = NULL;
bcdf2096 1863 struct wpa_ssid *last_ssid;
6d6f4bb8
JM		 1864
1865 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
1866 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
6fc6879b
JM		 1867
1868 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1869 /*
1870 * At least Host AP driver and a Prism3 card seemed to be
1871 * generating streams of disconnected events when configuring
1872 * IBSS for WPA-None. Ignore them for now.
1873 */
f049052b
BG		 1874 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
1875 "IBSS/WPA-None mode");
6fc6879b
JM		 1876 return;
1877 }
1878
c9a82218 1879 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
6fc6879b
JM		 1880 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
1881 "pre-shared key may be incorrect");
00e5e3d5 1882 wpas_auth_failed(wpa_s);
6fc6879b 1883 }
0d0a8ca1
AC		 1884 if (!wpa_s->auto_reconnect_disabled ||
1885 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
d00821e9 1886 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
f7da5a9e
JM		 1887 "reconnect (wps=%d wpa_state=%d)",
1888 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
1889 wpa_s->wpa_state);
d00821e9
JM		 1890 if (wpa_s->wpa_state == WPA_COMPLETED &&
1891 wpa_s->current_ssid &&
1892 wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
3d9975d5 1893 !locally_generated &&
d00821e9
JM		 1894 disconnect_reason_recoverable(reason_code)) {
1895 /*
1896 * It looks like the AP has dropped association with
1897 * us, but could allow us to get back in. Try to
1898 * reconnect to the same BSS without full scan to save
1899 * time for some common cases.
1900 */
1901 fast_reconnect = wpa_s->current_bss;
1902 fast_reconnect_ssid = wpa_s->current_ssid;
1903 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
0d0a8ca1 1904 wpa_supplicant_req_scan(wpa_s, 0, 100000);
f7da5a9e
JM		 1905 else
1906 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
1907 "immediate scan");
0d0a8ca1 1908 } else {
d00821e9 1909 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
f049052b 1910 "try to re-connect");
0d0a8ca1
AC		 1911 wpa_s->reassociate = 0;
1912 wpa_s->disconnected = 1;
433cd2ce 1913 wpa_supplicant_cancel_sched_scan(wpa_s);
0d0a8ca1 1914 }
6fc6879b 1915 bssid = wpa_s->bssid;
a8e16edc 1916 if (is_zero_ether_addr(bssid))
6fc6879b 1917 bssid = wpa_s->pending_bssid;
56d24b4e
JM		 1918 if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
1919 wpas_connection_failed(wpa_s, bssid);
6fc6879b 1920 wpa_sm_notify_disassoc(wpa_s->wpa);
0bb1e425
GM		 1921 if (locally_generated)
1922 wpa_s->disconnect_reason = -reason_code;
1923 else
1924 wpa_s->disconnect_reason = reason_code;
1925 wpas_notify_disconnect_reason(wpa_s);
6fc6879b 1926 if (wpa_supplicant_dynamic_keys(wpa_s)) {
f049052b 1927 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
6fc6879b
JM		 1928 wpa_s->keys_cleared = 0;
1929 wpa_clear_keys(wpa_s, wpa_s->bssid);
1930 }
bcdf2096 1931 last_ssid = wpa_s->current_ssid;
6fc6879b 1932 wpa_supplicant_mark_disassoc(wpa_s);
e29853bb 1933
bcdf2096 1934 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
e29853bb 1935 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
bcdf2096
JM		 1936 wpa_s->current_ssid = last_ssid;
1937 }
d00821e9
JM		 1938
1939 if (fast_reconnect) {
5928411e 1940#ifndef CONFIG_NO_SCAN_PROCESSING
d00821e9
JM		 1941 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
1942 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
1943 fast_reconnect_ssid) < 0) {
1944 /* Recover through full scan */
1945 wpa_supplicant_req_scan(wpa_s, 0, 100000);
1946 }
5928411e 1947#endif /* CONFIG_NO_SCAN_PROCESSING */
d00821e9 1948 }
6fc6879b
JM		 1949}
1950
1951
46690a3b 1952#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
01a17491 1953void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
46690a3b
JM		 1954{
1955 struct wpa_supplicant *wpa_s = eloop_ctx;
1956
1957 if (!wpa_s->pending_mic_error_report)
1958 return;
1959
f049052b 1960 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
46690a3b
JM		 1961 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
1962 wpa_s->pending_mic_error_report = 0;
1963}
1964#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1965
1966
6fc6879b
JM		 1967static void
1968wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
1969 union wpa_event_data *data)
1970{
1971 int pairwise;
1972 struct os_time t;
1973
1974 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
1975 pairwise = (data && data->michael_mic_failure.unicast);
6fc6879b 1976 os_get_time(&t);
46690a3b
JM		 1977 if ((wpa_s->last_michael_mic_error &&
1978 t.sec - wpa_s->last_michael_mic_error <= 60) ||
1979 wpa_s->pending_mic_error_report) {
1980 if (wpa_s->pending_mic_error_report) {
1981 /*
1982 * Send the pending MIC error report immediately since
1983 * we are going to start countermeasures and AP better
1984 * do the same.
1985 */
1986 wpa_sm_key_request(wpa_s->wpa, 1,
1987 wpa_s->pending_mic_error_pairwise);
1988 }
1989
1990 /* Send the new MIC error report immediately since we are going
1991 * to start countermeasures and AP better do the same.
1992 */
1993 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1994
6fc6879b
JM		 1995 /* initialize countermeasures */
1996 wpa_s->countermeasures = 1;
8945cc45
BM		 1997
1998 wpa_blacklist_add(wpa_s, wpa_s->bssid);
1999
6fc6879b
JM		 2000 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2001
2002 /*
2003 * Need to wait for completion of request frame. We do not get
2004 * any callback for the message completion, so just wait a
2005 * short while and hope for the best. */
2006 os_sleep(0, 10000);
2007
2008 wpa_drv_set_countermeasures(wpa_s, 1);
2009 wpa_supplicant_deauthenticate(wpa_s,
2010 WLAN_REASON_MICHAEL_MIC_FAILURE);
2011 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2012 wpa_s, NULL);
2013 eloop_register_timeout(60, 0,
2014 wpa_supplicant_stop_countermeasures,
2015 wpa_s, NULL);
2016 /* TODO: mark the AP rejected for 60 second. STA is
2017 * allowed to associate with another AP.. */
46690a3b
JM		 2018 } else {
2019#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2020 if (wpa_s->mic_errors_seen) {
2021 /*
2022 * Reduce the effectiveness of Michael MIC error
2023 * reports as a means for attacking against TKIP if
2024 * more than one MIC failure is noticed with the same
2025 * PTK. We delay the transmission of the reports by a
2026 * random time between 0 and 60 seconds in order to
2027 * force the attacker wait 60 seconds before getting
2028 * the information on whether a frame resulted in a MIC
2029 * failure.
2030 */
2031 u8 rval[4];
2032 int sec;
2033
2034 if (os_get_random(rval, sizeof(rval)) < 0)
2035 sec = os_random() % 60;
2036 else
2037 sec = WPA_GET_BE32(rval) % 60;
f049052b
BG		 2038 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2039 "report %d seconds", sec);
46690a3b
JM		 2040 wpa_s->pending_mic_error_report = 1;
2041 wpa_s->pending_mic_error_pairwise = pairwise;
2042 eloop_cancel_timeout(
2043 wpa_supplicant_delayed_mic_error_report,
2044 wpa_s, NULL);
2045 eloop_register_timeout(
2046 sec, os_random() % 1000000,
2047 wpa_supplicant_delayed_mic_error_report,
2048 wpa_s, NULL);
2049 } else {
2050 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2051 }
2052#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2053 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2054#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
6fc6879b
JM		 2055 }
2056 wpa_s->last_michael_mic_error = t.sec;
46690a3b 2057 wpa_s->mic_errors_seen++;
6fc6879b
JM		 2058}
2059
2060
a83d9c96
SL		 2061#ifdef CONFIG_TERMINATE_ONLASTIF
2062static int any_interfaces(struct wpa_supplicant *head)
2063{
2064 struct wpa_supplicant *wpa_s;
2065
2066 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2067 if (!wpa_s->interface_removed)
2068 return 1;
2069 return 0;
2070}
2071#endif /* CONFIG_TERMINATE_ONLASTIF */
2072
2073
6fc6879b
JM		 2074static void
2075wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2076 union wpa_event_data *data)
2077{
2078 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2079 return;
2080
2081 switch (data->interface_status.ievent) {
2082 case EVENT_INTERFACE_ADDED:
2083 if (!wpa_s->interface_removed)
2084 break;
2085 wpa_s->interface_removed = 0;
f049052b 2086 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
6fc6879b 2087 if (wpa_supplicant_driver_init(wpa_s) < 0) {
f049052b
BG		 2088 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2089 "driver after interface was added");
6fc6879b 2090 }
cb6710a4 2091 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
6fc6879b
JM		 2092 break;
2093 case EVENT_INTERFACE_REMOVED:
f049052b 2094 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
6fc6879b
JM		 2095 wpa_s->interface_removed = 1;
2096 wpa_supplicant_mark_disassoc(wpa_s);
cb6710a4 2097 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
6fc6879b
JM		 2098 l2_packet_deinit(wpa_s->l2);
2099 wpa_s->l2 = NULL;
ea244d21 2100#ifdef CONFIG_IBSS_RSN
78177a00
JM		 2101 ibss_rsn_deinit(wpa_s->ibss_rsn);
2102 wpa_s->ibss_rsn = NULL;
ea244d21 2103#endif /* CONFIG_IBSS_RSN */
a83d9c96
SL		 2104#ifdef CONFIG_TERMINATE_ONLASTIF
2105 /* check if last interface */
2106 if (!any_interfaces(wpa_s->global->ifaces))
2107 eloop_terminate();
2108#endif /* CONFIG_TERMINATE_ONLASTIF */
6fc6879b
JM		 2109 break;
2110 }
2111}
2112
2113
2114#ifdef CONFIG_PEERKEY
2115static void
2116wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2117 union wpa_event_data *data)
2118{
2119 if (data == NULL)
2120 return;
2121 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2122}
2123#endif /* CONFIG_PEERKEY */
2124
2125
281ff0aa
GP		 2126#ifdef CONFIG_TDLS
2127static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2128 union wpa_event_data *data)
2129{
2130 if (data == NULL)
2131 return;
2132 switch (data->tdls.oper) {
2133 case TDLS_REQUEST_SETUP:
2134 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2135 break;
2136 case TDLS_REQUEST_TEARDOWN:
7de27409
AN		 2137 wpa_tdls_send_teardown(wpa_s->wpa, data->tdls.peer,
2138 data->tdls.reason_code);
281ff0aa
GP		 2139 break;
2140 }
2141}
2142#endif /* CONFIG_TDLS */
2143
2144
ad3872a3 2145#ifdef CONFIG_WNM
75cad1a0
XC		 2146static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2147 union wpa_event_data *data)
2148{
2149 if (data == NULL)
2150 return;
2151 switch (data->wnm.oper) {
2152 case WNM_OPER_SLEEP:
2153 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2154 "(action=%d, intval=%d)",
2155 data->wnm.sleep_action, data->wnm.sleep_intval);
2156 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
cd0ef657 2157 data->wnm.sleep_intval, NULL);
75cad1a0
XC		 2158 break;
2159 }
2160}
ad3872a3 2161#endif /* CONFIG_WNM */
75cad1a0
XC		 2162
2163
6fc6879b
JM		 2164#ifdef CONFIG_IEEE80211R
2165static void
2166wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2167 union wpa_event_data *data)
2168{
2169 if (data == NULL)
2170 return;
2171
2172 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2173 data->ft_ies.ies_len,
2174 data->ft_ies.ft_action,
babfbf15
JM		 2175 data->ft_ies.target_ap,
2176 data->ft_ies.ric_ies,
2177 data->ft_ies.ric_ies_len) < 0) {
6fc6879b
JM		 2178 /* TODO: prevent MLME/driver from trying to associate? */
2179 }
2180}
2181#endif /* CONFIG_IEEE80211R */
2182
2183
11ef8d35
JM		 2184#ifdef CONFIG_IBSS_RSN
2185static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2186 union wpa_event_data *data)
2187{
df4bc509 2188 struct wpa_ssid *ssid;
df418245
XC		 2189 if (wpa_s->wpa_state < WPA_ASSOCIATED)
2190 return;
11ef8d35
JM		 2191 if (data == NULL)
2192 return;
df4bc509
JM		 2193 ssid = wpa_s->current_ssid;
2194 if (ssid == NULL)
2195 return;
2196 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2197 return;
2198
11ef8d35
JM		 2199 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2200}
2201#endif /* CONFIG_IBSS_RSN */
2202
2203
036f7c4a
JM		 2204#ifdef CONFIG_IEEE80211R
2205static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2206 size_t len)
2207{
2208 const u8 *sta_addr, *target_ap_addr;
2209 u16 status;
2210
2211 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2212 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2213 return; /* only SME case supported for now */
2214 if (len < 1 + 2 * ETH_ALEN + 2)
2215 return;
2216 if (data[0] != 2)
2217 return; /* Only FT Action Response is supported for now */
2218 sta_addr = data + 1;
2219 target_ap_addr = data + 1 + ETH_ALEN;
2220 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
f049052b
BG		 2221 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2222 MACSTR " TargetAP " MACSTR " status %u",
2223 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
036f7c4a
JM		 2224
2225 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
f049052b
BG		 2226 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2227 " in FT Action Response", MAC2STR(sta_addr));
036f7c4a
JM		 2228 return;
2229 }
2230
2231 if (status) {
f049052b
BG		 2232 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2233 "failure (status code %d)", status);
036f7c4a
JM		 2234 /* TODO: report error to FT code(?) */
2235 return;
2236 }
2237
2238 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2239 len - (1 + 2 * ETH_ALEN + 2), 1,
2240 target_ap_addr, NULL, 0) < 0)
2241 return;
2242
fe191985
JM		 2243#ifdef CONFIG_SME
2244 {
2245 struct wpa_bss *bss;
2246 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2247 if (bss)
2248 wpa_s->sme.freq = bss->freq;
62c72d72 2249 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
fe191985
JM		 2250 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2251 WLAN_AUTH_FT);
2252 }
2253#endif /* CONFIG_SME */
036f7c4a
JM		 2254}
2255#endif /* CONFIG_IEEE80211R */
2256
2257
7d878ca7
JM		 2258static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2259 struct unprot_deauth *e)
2260{
2261#ifdef CONFIG_IEEE80211W
2262 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2263 "dropped: " MACSTR " -> " MACSTR
2264 " (reason code %u)",
2265 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2266 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2267#endif /* CONFIG_IEEE80211W */
2268}
2269
2270
2271static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2272 struct unprot_disassoc *e)
2273{
2274#ifdef CONFIG_IEEE80211W
2275 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2276 "dropped: " MACSTR " -> " MACSTR
2277 " (reason code %u)",
2278 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2279 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2280#endif /* CONFIG_IEEE80211W */
2281}
2282
2283
71269b37
JM		 2284static void wnm_action_rx(struct wpa_supplicant *wpa_s, struct rx_action *rx)
2285{
2286 u8 action, mode;
2287 const u8 *pos, *end;
2288
2289 if (rx->data == NULL || rx->len == 0)
2290 return;
2291
2292 pos = rx->data;
2293 end = pos + rx->len;
2294 action = *pos++;
2295
2296 wpa_printf(MSG_DEBUG, "WNM: RX action %u from " MACSTR,
2297 action, MAC2STR(rx->sa));
2298 switch (action) {
2299 case WNM_BSS_TRANS_MGMT_REQ:
2300 if (pos + 5 > end)
2301 break;
2302 wpa_printf(MSG_DEBUG, "WNM: BSS Transition Management "
2303 "Request: dialog_token=%u request_mode=0x%x "
2304 "disassoc_timer=%u validity_interval=%u",
2305 pos[0], pos[1], WPA_GET_LE16(pos + 2), pos[4]);
2306 mode = pos[1];
2307 pos += 5;
2308 if (mode & 0x08)
2309 pos += 12; /* BSS Termination Duration */
2310 if (mode & 0x10) {
2311 char url[256];
2312 if (pos + 1 > end || pos + 1 + pos[0] > end) {
2313 wpa_printf(MSG_DEBUG, "WNM: Invalid BSS "
2314 "Transition Management Request "
2315 "(URL)");
2316 break;
2317 }
2318 os_memcpy(url, pos + 1, pos[0]);
2319 url[pos[0]] = '\0';
2320 wpa_msg(wpa_s, MSG_INFO, "WNM: ESS Disassociation "
2321 "Imminent - session_info_url=%s", url);
2322 }
2323 break;
2324 }
2325}
2326
2327
9646a8ab 2328void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
6fc6879b
JM		 2329 union wpa_event_data *data)
2330{
2331 struct wpa_supplicant *wpa_s = ctx;
0544b242 2332 u16 reason_code = 0;
3d9975d5 2333 int locally_generated = 0;
6fc6879b 2334
8401a6b0
JM		 2335 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
2336 event != EVENT_INTERFACE_ENABLED &&
9b6f44cb
JM		 2337 event != EVENT_INTERFACE_STATUS &&
2338 event != EVENT_SCHED_SCAN_STOPPED) {
6c3771d7
BG		 2339 wpa_dbg(wpa_s, MSG_DEBUG,
2340 "Ignore event %s (%d) while interface is disabled",
2341 event_to_string(event), event);
8401a6b0
JM		 2342 return;
2343 }
2344
74781dfc
JM		 2345#ifndef CONFIG_NO_STDOUT_DEBUG
2346{
2347 int level = MSG_DEBUG;
2348
eab6f5e0 2349 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
74781dfc
JM		 2350 const struct ieee80211_hdr *hdr;
2351 u16 fc;
2352 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
2353 fc = le_to_host16(hdr->frame_control);
2354 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2355 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
2356 level = MSG_EXCESSIVE;
2357 }
2358
2359 wpa_dbg(wpa_s, level, "Event %s (%d) received",
6c3771d7 2360 event_to_string(event), event);
74781dfc
JM		 2361}
2362#endif /* CONFIG_NO_STDOUT_DEBUG */
9b7124b2 2363
6fc6879b 2364 switch (event) {
c2a04078
JM		 2365 case EVENT_AUTH:
2366 sme_event_auth(wpa_s, data);
2367 break;
6fc6879b
JM		 2368 case EVENT_ASSOC:
2369 wpa_supplicant_event_assoc(wpa_s, data);
2370 break;
2371 case EVENT_DISASSOC:
f049052b 2372 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2e75a2b3 2373 if (data) {
3d9975d5
JM		 2374 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2375 data->disassoc_info.reason_code,
2376 data->disassoc_info.locally_generated ?
2377 " (locally generated)" : "");
2e75a2b3 2378 if (data->disassoc_info.addr)
f049052b
BG		 2379 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2380 MAC2STR(data->disassoc_info.addr));
2e75a2b3 2381 }
1d041bec 2382#ifdef CONFIG_AP
7f542069 2383 if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
1d041bec
JM		 2384 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2385 data->disassoc_info.addr);
2386 break;
2387 }
4551dd90
JM		 2388 if (wpa_s->ap_iface) {
2389 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in "
2390 "AP mode");
2391 break;
2392 }
1d041bec 2393#endif /* CONFIG_AP */
9fdd0fad
JM		 2394 if (data) {
2395 reason_code = data->disassoc_info.reason_code;
3d9975d5
JM		 2396 locally_generated =
2397 data->disassoc_info.locally_generated;
9fdd0fad
JM		 2398 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2399 data->disassoc_info.ie,
2400 data->disassoc_info.ie_len);
2401#ifdef CONFIG_P2P
2402 wpas_p2p_disassoc_notif(
2403 wpa_s, data->disassoc_info.addr, reason_code,
2404 data->disassoc_info.ie,
3fc14102
JM		 2405 data->disassoc_info.ie_len,
2406 locally_generated);
9fdd0fad
JM		 2407#endif /* CONFIG_P2P */
2408 }
0e379654
JM		 2409 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2410 sme_event_disassoc(wpa_s, data);
a84ed99e
JM		 2411 /* fall through */
2412 case EVENT_DEAUTH:
0544b242 2413 if (event == EVENT_DEAUTH) {
f049052b
BG		 2414 wpa_dbg(wpa_s, MSG_DEBUG,
2415 "Deauthentication notification");
2e75a2b3 2416 if (data) {
0544b242 2417 reason_code = data->deauth_info.reason_code;
3d9975d5
JM		 2418 locally_generated =
2419 data->deauth_info.locally_generated;
2420 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2421 data->deauth_info.reason_code,
2422 data->deauth_info.locally_generated ?
2423 " (locally generated)" : "");
2e75a2b3 2424 if (data->deauth_info.addr) {
f049052b
BG		 2425 wpa_dbg(wpa_s, MSG_DEBUG, " * address "
2426 MACSTR,
2427 MAC2STR(data->deauth_info.
2428 addr));
2e75a2b3 2429 }
9fdd0fad
JM		 2430 wpa_hexdump(MSG_DEBUG,
2431 "Deauthentication frame IE(s)",
2432 data->deauth_info.ie,
2433 data->deauth_info.ie_len);
2e75a2b3 2434 }
0544b242 2435 }
1d041bec 2436#ifdef CONFIG_AP
7f542069 2437 if (wpa_s->ap_iface && data && data->deauth_info.addr) {
1d041bec
JM		 2438 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2439 data->deauth_info.addr);
2440 break;
2441 }
4551dd90
JM		 2442 if (wpa_s->ap_iface) {
2443 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in "
2444 "AP mode");
2445 break;
2446 }
1d041bec 2447#endif /* CONFIG_AP */
3d9975d5
JM		 2448 wpa_supplicant_event_disassoc(wpa_s, reason_code,
2449 locally_generated);
00e5e3d5
JM		 2450 if (reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
2451 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
2452 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
2453 eapol_sm_failed(wpa_s->eapol)))
2454 wpas_auth_failed(wpa_s);
3fc14102
JM		 2455#ifdef CONFIG_P2P
2456 if (event == EVENT_DEAUTH && data) {
0aadd568
JM		 2457 if (wpas_p2p_deauth_notif(wpa_s,
2458 data->deauth_info.addr,
2459 reason_code,
2460 data->deauth_info.ie,
2461 data->deauth_info.ie_len,
2462 locally_generated) > 0) {
2463 /*
2464 * The interface was removed, so cannot
2465 * continue processing any additional
2466 * operations after this.
2467 */
2468 break;
2469 }
3fc14102
JM		 2470 }
2471#endif /* CONFIG_P2P */
0aadd568
JM		 2472 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
2473 locally_generated);
6fc6879b
JM		 2474 break;
2475 case EVENT_MICHAEL_MIC_FAILURE:
2476 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
2477 break;
2478#ifndef CONFIG_NO_SCAN_PROCESSING
2479 case EVENT_SCAN_RESULTS:
8d923a4a 2480 wpa_supplicant_event_scan_results(wpa_s, data);
99fcd404 2481#ifdef CONFIG_P2P
e665ca9a 2482 if (wpa_s->global->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
99fcd404
JM		 2483 wpa_s->global->p2p != NULL &&
2484 wpa_s->wpa_state != WPA_AUTHENTICATING &&
2485 wpa_s->wpa_state != WPA_ASSOCIATING) {
e665ca9a 2486 wpa_s->global->p2p_cb_on_scan_complete = 0;
99fcd404
JM		 2487 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
2488 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
2489 "continued after scan result processing");
2490 }
2491 }
2492#endif /* CONFIG_P2P */
6fc6879b
JM		 2493 break;
2494#endif /* CONFIG_NO_SCAN_PROCESSING */
2495 case EVENT_ASSOCINFO:
2496 wpa_supplicant_event_associnfo(wpa_s, data);
2497 break;
2498 case EVENT_INTERFACE_STATUS:
2499 wpa_supplicant_event_interface_status(wpa_s, data);
2500 break;
2501 case EVENT_PMKID_CANDIDATE:
2502 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
2503 break;
2504#ifdef CONFIG_PEERKEY
2505 case EVENT_STKSTART:
2506 wpa_supplicant_event_stkstart(wpa_s, data);
2507 break;
2508#endif /* CONFIG_PEERKEY */
281ff0aa
GP		 2509#ifdef CONFIG_TDLS
2510 case EVENT_TDLS:
2511 wpa_supplicant_event_tdls(wpa_s, data);
2512 break;
2513#endif /* CONFIG_TDLS */
ad3872a3 2514#ifdef CONFIG_WNM
75cad1a0
XC		 2515 case EVENT_WNM:
2516 wpa_supplicant_event_wnm(wpa_s, data);
2517 break;
ad3872a3 2518#endif /* CONFIG_WNM */
6fc6879b
JM		 2519#ifdef CONFIG_IEEE80211R
2520 case EVENT_FT_RESPONSE:
2521 wpa_supplicant_event_ft_response(wpa_s, data);
2522 break;
2523#endif /* CONFIG_IEEE80211R */
11ef8d35
JM		 2524#ifdef CONFIG_IBSS_RSN
2525 case EVENT_IBSS_RSN_START:
2526 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
2527 break;
2528#endif /* CONFIG_IBSS_RSN */
efa46078 2529 case EVENT_ASSOC_REJECT:
c05d6d18
JM		 2530 if (data->assoc_reject.bssid)
2531 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2532 "bssid=" MACSTR " status_code=%u",
2533 MAC2STR(data->assoc_reject.bssid),
2534 data->assoc_reject.status_code);
2535 else
2536 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2537 "status_code=%u",
2538 data->assoc_reject.status_code);
ea78c315
JM		 2539 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2540 sme_event_assoc_reject(wpa_s, data);
10737aba
JM		 2541 else {
2542 const u8 *bssid = data->assoc_reject.bssid;
2543 if (bssid == NULL || is_zero_ether_addr(bssid))
2544 bssid = wpa_s->pending_bssid;
2545 wpas_connection_failed(wpa_s, bssid);
2546 wpa_supplicant_mark_disassoc(wpa_s);
2547 }
efa46078 2548 break;
da1fb17c 2549 case EVENT_AUTH_TIMED_OUT:
ea78c315
JM		 2550 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2551 sme_event_auth_timed_out(wpa_s, data);
da1fb17c
JM		 2552 break;
2553 case EVENT_ASSOC_TIMED_OUT:
ea78c315
JM		 2554 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2555 sme_event_assoc_timed_out(wpa_s, data);
da1fb17c 2556 break;
f8b1f695 2557 case EVENT_TX_STATUS:
f049052b
BG		 2558 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
2559 " type=%d stype=%d",
2560 MAC2STR(data->tx_status.dst),
2561 data->tx_status.type, data->tx_status.stype);
24f6497c 2562#ifdef CONFIG_AP
9bae1be0 2563 if (wpa_s->ap_iface == NULL) {
24f6497c 2564#ifdef CONFIG_OFFCHANNEL
9bae1be0
JM		 2565 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2566 data->tx_status.stype == WLAN_FC_STYPE_ACTION)
24f6497c 2567 offchannel_send_action_tx_status(
9bae1be0
JM		 2568 wpa_s, data->tx_status.dst,
2569 data->tx_status.data,
2570 data->tx_status.data_len,
93b7ddd0 2571 data->tx_status.ack ?
24f6497c
JM		 2572 OFFCHANNEL_SEND_ACTION_SUCCESS :
2573 OFFCHANNEL_SEND_ACTION_NO_ACK);
2574#endif /* CONFIG_OFFCHANNEL */
9bae1be0
JM		 2575 break;
2576 }
24f6497c
JM		 2577#endif /* CONFIG_AP */
2578#ifdef CONFIG_OFFCHANNEL
f049052b
BG		 2579 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
2580 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
9bae1be0
JM		 2581 /*
2582 * Catch TX status events for Action frames we sent via group
2583 * interface in GO mode.
2584 */
2585 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2586 data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
2587 os_memcmp(wpa_s->parent->pending_action_dst,
2588 data->tx_status.dst, ETH_ALEN) == 0) {
24f6497c 2589 offchannel_send_action_tx_status(
9bae1be0
JM		 2590 wpa_s->parent, data->tx_status.dst,
2591 data->tx_status.data,
2592 data->tx_status.data_len,
1d39378a 2593 data->tx_status.ack ?
24f6497c
JM		 2594 OFFCHANNEL_SEND_ACTION_SUCCESS :
2595 OFFCHANNEL_SEND_ACTION_NO_ACK);
f8b1f695 2596 break;
9bae1be0 2597 }
24f6497c
JM		 2598#endif /* CONFIG_OFFCHANNEL */
2599#ifdef CONFIG_AP
f8b1f695
JM		 2600 switch (data->tx_status.type) {
2601 case WLAN_FC_TYPE_MGMT:
2602 ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
2603 data->tx_status.data_len,
2604 data->tx_status.stype,
2605 data->tx_status.ack);
2606 break;
2607 case WLAN_FC_TYPE_DATA:
2608 ap_tx_status(wpa_s, data->tx_status.dst,
2609 data->tx_status.data,
2610 data->tx_status.data_len,
2611 data->tx_status.ack);
2612 break;
2613 }
24f6497c 2614#endif /* CONFIG_AP */
f8b1f695 2615 break;
24f6497c 2616#ifdef CONFIG_AP
dd840f79
JB		 2617 case EVENT_EAPOL_TX_STATUS:
2618 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
2619 data->eapol_tx_status.data,
2620 data->eapol_tx_status.data_len,
2621 data->eapol_tx_status.ack);
2622 break;
bcf24348
JB		 2623 case EVENT_DRIVER_CLIENT_POLL_OK:
2624 ap_client_poll_ok(wpa_s, data->client_poll.addr);
2625 break;
f8b1f695
JM		 2626 case EVENT_RX_FROM_UNKNOWN:
2627 if (wpa_s->ap_iface == NULL)
2628 break;
9b90955e
JB		 2629 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
2630 data->rx_from_unknown.wds);
f8b1f695 2631 break;
1b487b8b
TP		 2632 case EVENT_CH_SWITCH:
2633 if (!data)
2634 break;
2635 if (!wpa_s->ap_iface) {
2636 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch "
2637 "event in non-AP mode");
2638 break;
2639 }
2640
2641#ifdef CONFIG_AP
2642 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
2643 data->ch_switch.ht_enabled,
2644 data->ch_switch.ch_offset);
2645#endif /* CONFIG_AP */
2646 break;
2d43d37f
JB		 2647 case EVENT_RX_MGMT: {
2648 u16 fc, stype;
2649 const struct ieee80211_mgmt *mgmt;
2650
2651 mgmt = (const struct ieee80211_mgmt *)
2652 data->rx_mgmt.frame;
2653 fc = le_to_host16(mgmt->frame_control);
2654 stype = WLAN_FC_GET_STYPE(fc);
2655
9bae1be0
JM		 2656 if (wpa_s->ap_iface == NULL) {
2657#ifdef CONFIG_P2P
9bae1be0
JM		 2658 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2659 data->rx_mgmt.frame_len > 24) {
2660 const u8 *src = mgmt->sa;
2661 const u8 *ie = mgmt->u.probe_req.variable;
2662 size_t ie_len = data->rx_mgmt.frame_len -
2663 (mgmt->u.probe_req.variable -
2664 data->rx_mgmt.frame);
baf513d6
JB		 2665 wpas_p2p_probe_req_rx(
2666 wpa_s, src, mgmt->da,
2667 mgmt->bssid, ie, ie_len,
2668 data->rx_mgmt.ssi_signal);
9bae1be0
JM		 2669 break;
2670 }
2671#endif /* CONFIG_P2P */
f049052b
BG		 2672 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
2673 "management frame in non-AP mode");
f8b1f695 2674 break;
9bae1be0 2675 }
2d43d37f
JB		 2676
2677 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2678 data->rx_mgmt.frame_len > 24) {
2679 const u8 *ie = mgmt->u.probe_req.variable;
2680 size_t ie_len = data->rx_mgmt.frame_len -
2681 (mgmt->u.probe_req.variable -
2682 data->rx_mgmt.frame);
2683
2684 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
2685 mgmt->bssid, ie, ie_len,
2686 data->rx_mgmt.ssi_signal);
2d43d37f
JB		 2687 }
2688
2a8b7416 2689 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
f8b1f695 2690 break;
2d43d37f 2691 }
f8b1f695 2692#endif /* CONFIG_AP */
036f7c4a 2693 case EVENT_RX_ACTION:
f049052b
BG		 2694 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2695 " Category=%u DataLen=%d freq=%d MHz",
2696 MAC2STR(data->rx_action.sa),
2697 data->rx_action.category, (int) data->rx_action.len,
2698 data->rx_action.freq);
036f7c4a
JM		 2699#ifdef CONFIG_IEEE80211R
2700 if (data->rx_action.category == WLAN_ACTION_FT) {
2701 ft_rx_action(wpa_s, data->rx_action.data,
2702 data->rx_action.len);
2703 break;
2704 }
2705#endif /* CONFIG_IEEE80211R */
7d878ca7
JM		 2706#ifdef CONFIG_IEEE80211W
2707#ifdef CONFIG_SME
2708 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) {
2709 sme_sa_query_rx(wpa_s, data->rx_action.sa,
2710 data->rx_action.data,
2711 data->rx_action.len);
2712 break;
2713 }
2714#endif /* CONFIG_SME */
2715#endif /* CONFIG_IEEE80211W */
ad3872a3 2716#ifdef CONFIG_WNM
75cad1a0
XC		 2717 if (data->rx_action.category == WLAN_ACTION_WNM) {
2718 ieee802_11_rx_wnm_action(wpa_s, &data->rx_action);
2719 break;
2720 }
ad3872a3 2721#endif /* CONFIG_WNM */
04ea7b79
JM		 2722#ifdef CONFIG_GAS
2723 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2724 gas_query_rx(wpa_s->gas, data->rx_action.da,
2725 data->rx_action.sa, data->rx_action.bssid,
2726 data->rx_action.data, data->rx_action.len,
2727 data->rx_action.freq) == 0)
2728 break;
2729#endif /* CONFIG_GAS */
71269b37
JM		 2730 if (data->rx_action.category == WLAN_ACTION_WNM) {
2731 wnm_action_rx(wpa_s, &data->rx_action);
2732 break;
2733 }
35287637
AN		 2734#ifdef CONFIG_TDLS
2735 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2736 data->rx_action.len >= 4 &&
2737 data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
2738 wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery "
2739 "Response from " MACSTR,
2740 MAC2STR(data->rx_action.sa));
2741 break;
2742 }
2743#endif /* CONFIG_TDLS */
9bae1be0
JM		 2744#ifdef CONFIG_P2P
2745 wpas_p2p_rx_action(wpa_s, data->rx_action.da,
2746 data->rx_action.sa,
2747 data->rx_action.bssid,
2748 data->rx_action.category,
2749 data->rx_action.data,
2750 data->rx_action.len, data->rx_action.freq);
e67b55fb
JM		 2751#endif /* CONFIG_P2P */
2752 break;
2753 case EVENT_RX_PROBE_REQ:
b211f3eb
JM		 2754 if (data->rx_probe_req.sa == NULL ||
2755 data->rx_probe_req.ie == NULL)
2756 break;
e67b55fb
JM		 2757#ifdef CONFIG_AP
2758 if (wpa_s->ap_iface) {
2759 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
2760 data->rx_probe_req.sa,
04a85e44
JM		 2761 data->rx_probe_req.da,
2762 data->rx_probe_req.bssid,
e67b55fb 2763 data->rx_probe_req.ie,
baf513d6
JB		 2764 data->rx_probe_req.ie_len,
2765 data->rx_probe_req.ssi_signal);
e67b55fb
JM		 2766 break;
2767 }
2768#endif /* CONFIG_AP */
2769#ifdef CONFIG_P2P
2770 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
04a85e44
JM		 2771 data->rx_probe_req.da,
2772 data->rx_probe_req.bssid,
e67b55fb 2773 data->rx_probe_req.ie,
baf513d6
JB		 2774 data->rx_probe_req.ie_len,
2775 data->rx_probe_req.ssi_signal);
9bae1be0 2776#endif /* CONFIG_P2P */
036f7c4a 2777 break;
9bae1be0 2778 case EVENT_REMAIN_ON_CHANNEL:
24f6497c
JM		 2779#ifdef CONFIG_OFFCHANNEL
2780 offchannel_remain_on_channel_cb(
2781 wpa_s, data->remain_on_channel.freq,
2782 data->remain_on_channel.duration);
2783#endif /* CONFIG_OFFCHANNEL */
2784#ifdef CONFIG_P2P
9bae1be0
JM		 2785 wpas_p2p_remain_on_channel_cb(
2786 wpa_s, data->remain_on_channel.freq,
2787 data->remain_on_channel.duration);
24f6497c 2788#endif /* CONFIG_P2P */
9bae1be0
JM		 2789 break;
2790 case EVENT_CANCEL_REMAIN_ON_CHANNEL:
24f6497c
JM		 2791#ifdef CONFIG_OFFCHANNEL
2792 offchannel_cancel_remain_on_channel_cb(
2793 wpa_s, data->remain_on_channel.freq);
2794#endif /* CONFIG_OFFCHANNEL */
2795#ifdef CONFIG_P2P
9bae1be0
JM		 2796 wpas_p2p_cancel_remain_on_channel_cb(
2797 wpa_s, data->remain_on_channel.freq);
24f6497c 2798#endif /* CONFIG_P2P */
9bae1be0 2799 break;
24f6497c 2800#ifdef CONFIG_P2P
c5db8e51
KRK		 2801 case EVENT_P2P_DEV_FOUND: {
2802 struct p2p_peer_info peer_info;
2803
2804 os_memset(&peer_info, 0, sizeof(peer_info));
2805 if (data->p2p_dev_found.dev_addr)
2806 os_memcpy(peer_info.p2p_device_addr,
2807 data->p2p_dev_found.dev_addr, ETH_ALEN);
2808 if (data->p2p_dev_found.pri_dev_type)
2809 os_memcpy(peer_info.pri_dev_type,
2810 data->p2p_dev_found.pri_dev_type,
2811 sizeof(peer_info.pri_dev_type));
2812 if (data->p2p_dev_found.dev_name)
2813 os_strlcpy(peer_info.device_name,
2814 data->p2p_dev_found.dev_name,
2815 sizeof(peer_info.device_name));
2816 peer_info.config_methods = data->p2p_dev_found.config_methods;
2817 peer_info.dev_capab = data->p2p_dev_found.dev_capab;
2818 peer_info.group_capab = data->p2p_dev_found.group_capab;
2819
8fd7dc1b
JB		 2820 /*
2821 * FIX: new_device=1 is not necessarily correct. We should
2822 * maintain a P2P peer database in wpa_supplicant and update
2823 * this information based on whether the peer is truly new.
2824 */
2825 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1);
3ac17eba 2826 break;
c5db8e51 2827 }
3ac17eba
JM		 2828 case EVENT_P2P_GO_NEG_REQ_RX:
2829 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src,
2830 data->p2p_go_neg_req_rx.dev_passwd_id);
2831 break;
2832 case EVENT_P2P_GO_NEG_COMPLETED:
2833 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res);
2834 break;
2835 case EVENT_P2P_PROV_DISC_REQUEST:
2836 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer,
2837 data->p2p_prov_disc_req.config_methods,
2838 data->p2p_prov_disc_req.dev_addr,
2839 data->p2p_prov_disc_req.pri_dev_type,
2840 data->p2p_prov_disc_req.dev_name,
2841 data->p2p_prov_disc_req.supp_config_methods,
2842 data->p2p_prov_disc_req.dev_capab,
c3f42784
JM		 2843 data->p2p_prov_disc_req.group_capab,
2844 NULL, 0);
3ac17eba
JM		 2845 break;
2846 case EVENT_P2P_PROV_DISC_RESPONSE:
2847 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer,
2848 data->p2p_prov_disc_resp.config_methods);
2849 break;
2850 case EVENT_P2P_SD_REQUEST:
2851 wpas_sd_request(wpa_s, data->p2p_sd_req.freq,
2852 data->p2p_sd_req.sa,
2853 data->p2p_sd_req.dialog_token,
2854 data->p2p_sd_req.update_indic,
2855 data->p2p_sd_req.tlvs,
2856 data->p2p_sd_req.tlvs_len);
2857 break;
2858 case EVENT_P2P_SD_RESPONSE:
2859 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa,
2860 data->p2p_sd_resp.update_indic,
2861 data->p2p_sd_resp.tlvs,
2862 data->p2p_sd_resp.tlvs_len);
2863 break;
9bae1be0 2864#endif /* CONFIG_P2P */
a8e0505b
JM		 2865 case EVENT_EAPOL_RX:
2866 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
2867 data->eapol_rx.data,
2868 data->eapol_rx.data_len);
2869 break;
e2f74005
JM		 2870 case EVENT_SIGNAL_CHANGE:
2871 bgscan_notify_signal_change(
60a972a6 2872 wpa_s, data->signal_change.above_threshold,
174fa789
PS		 2873 data->signal_change.current_signal,
2874 data->signal_change.current_noise,
2875 data->signal_change.current_txrate);
e2f74005 2876 break;
8401a6b0 2877 case EVENT_INTERFACE_ENABLED:
f049052b 2878 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
8401a6b0 2879 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
bfba8deb 2880 wpa_supplicant_update_mac_addr(wpa_s);
199716ad 2881#ifdef CONFIG_AP
9919f7a2
JB		 2882 if (!wpa_s->ap_iface) {
2883 wpa_supplicant_set_state(wpa_s,
2884 WPA_DISCONNECTED);
2885 wpa_supplicant_req_scan(wpa_s, 0, 0);
2886 } else
2887 wpa_supplicant_set_state(wpa_s,
2888 WPA_COMPLETED);
199716ad
BG		 2889#else /* CONFIG_AP */
2890 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2891 wpa_supplicant_req_scan(wpa_s, 0, 0);
2892#endif /* CONFIG_AP */
8401a6b0
JM		 2893 }
2894 break;
2895 case EVENT_INTERFACE_DISABLED:
f049052b 2896 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
8401a6b0
JM		 2897 wpa_supplicant_mark_disassoc(wpa_s);
2898 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2899 break;
b5c9da8d 2900 case EVENT_CHANNEL_LIST_CHANGED:
35c5d610
JM		 2901 if (wpa_s->drv_priv == NULL)
2902 break; /* Ignore event during drv initialization */
6979582c
JM		 2903
2904 free_hw_features(wpa_s);
2905 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(
2906 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags);
2907
b5c9da8d
JM		 2908#ifdef CONFIG_P2P
2909 wpas_p2p_update_channel_list(wpa_s);
c973f386
JM		 2910#endif /* CONFIG_P2P */
2911 break;
2912 case EVENT_INTERFACE_UNAVAILABLE:
2913#ifdef CONFIG_P2P
2914 wpas_p2p_interface_unavailable(wpa_s);
7cfc4ac3
AGS		 2915#endif /* CONFIG_P2P */
2916 break;
2917 case EVENT_BEST_CHANNEL:
f049052b
BG		 2918 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
2919 "(%d %d %d)",
2920 data->best_chan.freq_24, data->best_chan.freq_5,
2921 data->best_chan.freq_overall);
7cfc4ac3
AGS		 2922 wpa_s->best_24_freq = data->best_chan.freq_24;
2923 wpa_s->best_5_freq = data->best_chan.freq_5;
2924 wpa_s->best_overall_freq = data->best_chan.freq_overall;
2925#ifdef CONFIG_P2P
2926 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
2927 data->best_chan.freq_5,
2928 data->best_chan.freq_overall);
b5c9da8d
JM		 2929#endif /* CONFIG_P2P */
2930 break;
7d878ca7
JM		 2931 case EVENT_UNPROT_DEAUTH:
2932 wpa_supplicant_event_unprot_deauth(wpa_s,
2933 &data->unprot_deauth);
2934 break;
2935 case EVENT_UNPROT_DISASSOC:
2936 wpa_supplicant_event_unprot_disassoc(wpa_s,
2937 &data->unprot_disassoc);
2938 break;
0d7e5a3a
JB		 2939 case EVENT_STATION_LOW_ACK:
2940#ifdef CONFIG_AP
2941 if (wpa_s->ap_iface && data)
2942 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
2943 data->low_ack.addr);
2944#endif /* CONFIG_AP */
8f15f711
AN		 2945#ifdef CONFIG_TDLS
2946 if (data)
2947 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr);
2948#endif /* CONFIG_TDLS */
0d7e5a3a 2949 break;
ea244d21
XC		 2950 case EVENT_IBSS_PEER_LOST:
2951#ifdef CONFIG_IBSS_RSN
2952 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
2953#endif /* CONFIG_IBSS_RSN */
2954 break;
b14a210c
JB		 2955 case EVENT_DRIVER_GTK_REKEY:
2956 if (os_memcmp(data->driver_gtk_rekey.bssid,
2957 wpa_s->bssid, ETH_ALEN))
2958 break;
2959 if (!wpa_s->wpa)
2960 break;
2961 wpa_sm_update_replay_ctr(wpa_s->wpa,
2962 data->driver_gtk_rekey.replay_ctr);
2963 break;
cbdf3507
LC		 2964 case EVENT_SCHED_SCAN_STOPPED:
2965 wpa_s->sched_scanning = 0;
2966 wpa_supplicant_notify_scanning(wpa_s, 0);
2967
9b6f44cb
JM		 2968 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
2969 break;
2970
cbdf3507
LC		 2971 /*
2972 * If we timed out, start a new sched scan to continue
2973 * searching for more SSIDs.
2974 */
2975 if (wpa_s->sched_scan_timed_out)
2976 wpa_supplicant_req_sched_scan(wpa_s);
2977 break;
783fcb7d
GG		 2978 case EVENT_WPS_BUTTON_PUSHED:
2979#ifdef CONFIG_WPS
2980 wpas_wps_start_pbc(wpa_s, NULL, 0);
2981#endif /* CONFIG_WPS */
2982 break;
6fc6879b 2983 default:
f049052b 2984 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
6fc6879b
JM		 2985 break;
2986 }
2987}
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