wpa_supplicant/events.c

   1 /*
   2  * WPA Supplicant - Driver event processing
   3  * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "includes.h"
  10
  11 #include "common.h"
  12 #include "eapol_supp/eapol_supp_sm.h"
  13 #include "rsn_supp/wpa.h"
  14 #include "eloop.h"
  15 #include "config.h"
  16 #include "l2_packet/l2_packet.h"
  17 #include "wpa_supplicant_i.h"
  18 #include "driver_i.h"
  19 #include "pcsc_funcs.h"
  20 #include "rsn_supp/preauth.h"
  21 #include "rsn_supp/pmksa_cache.h"
  22 #include "common/wpa_ctrl.h"
  23 #include "eap_peer/eap.h"
  24 #include "ap/hostapd.h"
  25 #include "p2p/p2p.h"
  26 #include "fst/fst.h"
  27 #include "wnm_sta.h"
  28 #include "notify.h"
  29 #include "common/ieee802_11_defs.h"
  30 #include "common/ieee802_11_common.h"
  31 #include "crypto/random.h"
  32 #include "blacklist.h"
  33 #include "wpas_glue.h"
  34 #include "wps_supplicant.h"
  35 #include "ibss_rsn.h"
  36 #include "sme.h"
  37 #include "gas_query.h"
  38 #include "p2p_supplicant.h"
  39 #include "bgscan.h"
  40 #include "autoscan.h"
  41 #include "ap.h"
  42 #include "bss.h"
  43 #include "scan.h"
  44 #include "offchannel.h"
  45 #include "interworking.h"
  46 #include "mesh.h"
  47 #include "mesh_mpm.h"
  48 #include "wmm_ac.h"
  49
  50
  51 #ifndef CONFIG_NO_SCAN_PROCESSING
  52 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
  53                                               int new_scan, int own_request);
  54 #endif /* CONFIG_NO_SCAN_PROCESSING */
  55
  56
  57 static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
  58                               struct wpa_ssid *ssid)
  59 {
  60         struct os_reltime now;
  61
  62         if (ssid == NULL || ssid->disabled_until.sec == 0)
  63                 return 0;
  64
  65         os_get_reltime(&now);
  66         if (ssid->disabled_until.sec > now.sec)
  67                 return ssid->disabled_until.sec - now.sec;
  68
  69         wpas_clear_temp_disabled(wpa_s, ssid, 0);
  70
  71         return 0;
  72 }
  73
  74
  75 #ifndef CONFIG_NO_SCAN_PROCESSING
  76 /**
  77  * wpas_reenabled_network_time - Time until first network is re-enabled
  78  * @wpa_s: Pointer to wpa_supplicant data
  79  * Returns: If all enabled networks are temporarily disabled, returns the time
  80  *      (in sec) until the first network is re-enabled. Otherwise returns 0.
  81  *
  82  * This function is used in case all enabled networks are temporarily disabled,
  83  * in which case it returns the time (in sec) that the first network will be
  84  * re-enabled. The function assumes that at least one network is enabled.
  85  */
  86 static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s)
  87 {
  88         struct wpa_ssid *ssid;
  89         int disabled_for, res = 0;
  90
  91 #ifdef CONFIG_INTERWORKING
  92         if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking &&
  93             wpa_s->conf->cred)
  94                 return 0;
  95 #endif /* CONFIG_INTERWORKING */
  96
  97         for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
  98                 if (ssid->disabled)
  99                         continue;
 100
 101                 disabled_for = wpas_temp_disabled(wpa_s, ssid);
 102                 if (!disabled_for)
 103                         return 0;
 104
 105                 if (!res || disabled_for < res)
 106                         res = disabled_for;
 107         }
 108
 109         return res;
 110 }
 111 #endif /* CONFIG_NO_SCAN_PROCESSING */
 112
 113
 114 void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx)
 115 {
 116         struct wpa_supplicant *wpa_s = eloop_ctx;
 117
 118         if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING)
 119                 return;
 120
 121         wpa_dbg(wpa_s, MSG_DEBUG,
 122                 "Try to associate due to network getting re-enabled");
 123         if (wpa_supplicant_fast_associate(wpa_s) != 1) {
 124                 wpa_supplicant_cancel_sched_scan(wpa_s);
 125                 wpa_supplicant_req_scan(wpa_s, 0, 0);
 126         }
 127 }
 128
 129
 130 static struct wpa_bss * wpa_supplicant_get_new_bss(
 131         struct wpa_supplicant *wpa_s, const u8 *bssid)
 132 {
 133         struct wpa_bss *bss = NULL;
 134         struct wpa_ssid *ssid = wpa_s->current_ssid;
 135
 136         if (ssid->ssid_len > 0)
 137                 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
 138         if (!bss)
 139                 bss = wpa_bss_get_bssid(wpa_s, bssid);
 140
 141         return bss;
 142 }
 143
 144
 145 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
 146 {
 147         struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
 148
 149         if (!bss) {
 150                 wpa_supplicant_update_scan_results(wpa_s);
 151
 152                 /* Get the BSS from the new scan results */
 153                 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
 154         }
 155
 156         if (bss)
 157                 wpa_s->current_bss = bss;
 158 }
 159
 160
 161 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
 162 {
 163         struct wpa_ssid *ssid, *old_ssid;
 164         u8 drv_ssid[SSID_MAX_LEN];
 165         size_t drv_ssid_len;
 166         int res;
 167
 168         if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
 169                 wpa_supplicant_update_current_bss(wpa_s);
 170
 171                 if (wpa_s->current_ssid->ssid_len == 0)
 172                         return 0; /* current profile still in use */
 173                 res = wpa_drv_get_ssid(wpa_s, drv_ssid);
 174                 if (res < 0) {
 175                         wpa_msg(wpa_s, MSG_INFO,
 176                                 "Failed to read SSID from driver");
 177                         return 0; /* try to use current profile */
 178                 }
 179                 drv_ssid_len = res;
 180
 181                 if (drv_ssid_len == wpa_s->current_ssid->ssid_len &&
 182                     os_memcmp(drv_ssid, wpa_s->current_ssid->ssid,
 183                               drv_ssid_len) == 0)
 184                         return 0; /* current profile still in use */
 185
 186                 wpa_msg(wpa_s, MSG_DEBUG,
 187                         "Driver-initiated BSS selection changed the SSID to %s",
 188                         wpa_ssid_txt(drv_ssid, drv_ssid_len));
 189                 /* continue selecting a new network profile */
 190         }
 191
 192         wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
 193                 "information");
 194         ssid = wpa_supplicant_get_ssid(wpa_s);
 195         if (ssid == NULL) {
 196                 wpa_msg(wpa_s, MSG_INFO,
 197                         "No network configuration found for the current AP");
 198                 return -1;
 199         }
 200
 201         if (wpas_network_disabled(wpa_s, ssid)) {
 202                 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
 203                 return -1;
 204         }
 205
 206         if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
 207             disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
 208                 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
 209                 return -1;
 210         }
 211
 212         res = wpas_temp_disabled(wpa_s, ssid);
 213         if (res > 0) {
 214                 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
 215                         "disabled for %d second(s)", res);
 216                 return -1;
 217         }
 218
 219         wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
 220                 "current AP");
 221         if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
 222                 u8 wpa_ie[80];
 223                 size_t wpa_ie_len = sizeof(wpa_ie);
 224                 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
 225                                               wpa_ie, &wpa_ie_len) < 0)
 226                         wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
 227         } else {
 228                 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
 229         }
 230
 231         if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
 232                 eapol_sm_invalidate_cached_session(wpa_s->eapol);
 233         old_ssid = wpa_s->current_ssid;
 234         wpa_s->current_ssid = ssid;
 235
 236         wpa_supplicant_update_current_bss(wpa_s);
 237
 238         wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
 239         wpa_supplicant_initiate_eapol(wpa_s);
 240         if (old_ssid != wpa_s->current_ssid)
 241                 wpas_notify_network_changed(wpa_s);
 242
 243         return 0;
 244 }
 245
 246
 247 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
 248 {
 249         struct wpa_supplicant *wpa_s = eloop_ctx;
 250
 251         if (wpa_s->countermeasures) {
 252                 wpa_s->countermeasures = 0;
 253                 wpa_drv_set_countermeasures(wpa_s, 0);
 254                 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
 255
 256                 /*
 257                  * It is possible that the device is sched scanning, which means
 258                  * that a connection attempt will be done only when we receive
 259                  * scan results. However, in this case, it would be preferable
 260                  * to scan and connect immediately, so cancel the sched_scan and
 261                  * issue a regular scan flow.
 262                  */
 263                 wpa_supplicant_cancel_sched_scan(wpa_s);
 264                 wpa_supplicant_req_scan(wpa_s, 0, 0);
 265         }
 266 }
 267
 268
 269 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
 270 {
 271         int bssid_changed;
 272
 273         wnm_bss_keep_alive_deinit(wpa_s);
 274
 275 #ifdef CONFIG_IBSS_RSN
 276         ibss_rsn_deinit(wpa_s->ibss_rsn);
 277         wpa_s->ibss_rsn = NULL;
 278 #endif /* CONFIG_IBSS_RSN */
 279
 280 #ifdef CONFIG_AP
 281         wpa_supplicant_ap_deinit(wpa_s);
 282 #endif /* CONFIG_AP */
 283
 284         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
 285                 return;
 286
 287         wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
 288         bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
 289         os_memset(wpa_s->bssid, 0, ETH_ALEN);
 290         os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
 291         sme_clear_on_disassoc(wpa_s);
 292         wpa_s->current_bss = NULL;
 293         wpa_s->assoc_freq = 0;
 294
 295         if (bssid_changed)
 296                 wpas_notify_bssid_changed(wpa_s);
 297
 298         eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
 299         eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
 300         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
 301                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
 302         wpa_s->ap_ies_from_associnfo = 0;
 303         wpa_s->current_ssid = NULL;
 304         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 305         wpa_s->key_mgmt = 0;
 306
 307         wpas_rrm_reset(wpa_s);
 308         wpa_s->wnmsleep_used = 0;
 309 }
 310
 311
 312 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
 313 {
 314         struct wpa_ie_data ie;
 315         int pmksa_set = -1;
 316         size_t i;
 317
 318         if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
 319             ie.pmkid == NULL)
 320                 return;
 321
 322         for (i = 0; i < ie.num_pmkid; i++) {
 323                 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
 324                                                     ie.pmkid + i * PMKID_LEN,
 325                                                     NULL, NULL, 0);
 326                 if (pmksa_set == 0) {
 327                         eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
 328                         break;
 329                 }
 330         }
 331
 332         wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
 333                 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
 334 }
 335
 336
 337 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
 338                                                  union wpa_event_data *data)
 339 {
 340         if (data == NULL) {
 341                 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
 342                         "event");
 343                 return;
 344         }
 345         wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
 346                 " index=%d preauth=%d",
 347                 MAC2STR(data->pmkid_candidate.bssid),
 348                 data->pmkid_candidate.index,
 349                 data->pmkid_candidate.preauth);
 350
 351         pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
 352                             data->pmkid_candidate.index,
 353                             data->pmkid_candidate.preauth);
 354 }
 355
 356
 357 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
 358 {
 359         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
 360             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
 361                 return 0;
 362
 363 #ifdef IEEE8021X_EAPOL
 364         if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
 365             wpa_s->current_ssid &&
 366             !(wpa_s->current_ssid->eapol_flags &
 367               (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 368                EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
 369                 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
 370                  * plaintext or static WEP keys). */
 371                 return 0;
 372         }
 373 #endif /* IEEE8021X_EAPOL */
 374
 375         return 1;
 376 }
 377
 378
 379 /**
 380  * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
 381  * @wpa_s: pointer to wpa_supplicant data
 382  * @ssid: Configuration data for the network
 383  * Returns: 0 on success, -1 on failure
 384  *
 385  * This function is called when starting authentication with a network that is
 386  * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
 387  */
 388 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 389                               struct wpa_ssid *ssid)
 390 {
 391 #ifdef IEEE8021X_EAPOL
 392 #ifdef PCSC_FUNCS
 393         int aka = 0, sim = 0;
 394
 395         if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
 396             wpa_s->scard != NULL || wpa_s->conf->external_sim)
 397                 return 0;
 398
 399         if (ssid == NULL || ssid->eap.eap_methods == NULL) {
 400                 sim = 1;
 401                 aka = 1;
 402         } else {
 403                 struct eap_method_type *eap = ssid->eap.eap_methods;
 404                 while (eap->vendor != EAP_VENDOR_IETF ||
 405                        eap->method != EAP_TYPE_NONE) {
 406                         if (eap->vendor == EAP_VENDOR_IETF) {
 407                                 if (eap->method == EAP_TYPE_SIM)
 408                                         sim = 1;
 409                                 else if (eap->method == EAP_TYPE_AKA ||
 410                                          eap->method == EAP_TYPE_AKA_PRIME)
 411                                         aka = 1;
 412                         }
 413                         eap++;
 414                 }
 415         }
 416
 417         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
 418                 sim = 0;
 419         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
 420             eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
 421             NULL)
 422                 aka = 0;
 423
 424         if (!sim && !aka) {
 425                 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
 426                         "use SIM, but neither EAP-SIM nor EAP-AKA are "
 427                         "enabled");
 428                 return 0;
 429         }
 430
 431         wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
 432                 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
 433
 434         wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
 435         if (wpa_s->scard == NULL) {
 436                 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
 437                         "(pcsc-lite)");
 438                 return -1;
 439         }
 440         wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
 441         eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
 442 #endif /* PCSC_FUNCS */
 443 #endif /* IEEE8021X_EAPOL */
 444
 445         return 0;
 446 }
 447
 448
 449 #ifndef CONFIG_NO_SCAN_PROCESSING
 450
 451 static int has_wep_key(struct wpa_ssid *ssid)
 452 {
 453         int i;
 454
 455         for (i = 0; i < NUM_WEP_KEYS; i++) {
 456                 if (ssid->wep_key_len[i])
 457                         return 1;
 458         }
 459
 460         return 0;
 461 }
 462
 463
 464 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
 465                                         struct wpa_ssid *ssid)
 466 {
 467         int privacy = 0;
 468
 469         if (ssid->mixed_cell)
 470                 return 1;
 471
 472 #ifdef CONFIG_WPS
 473         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
 474                 return 1;
 475 #endif /* CONFIG_WPS */
 476
 477         if (has_wep_key(ssid))
 478                 privacy = 1;
 479
 480 #ifdef IEEE8021X_EAPOL
 481         if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
 482             ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 483                                  EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
 484                 privacy = 1;
 485 #endif /* IEEE8021X_EAPOL */
 486
 487         if (wpa_key_mgmt_wpa(ssid->key_mgmt))
 488                 privacy = 1;
 489
 490         if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
 491                 privacy = 1;
 492
 493         if (bss->caps & IEEE80211_CAP_PRIVACY)
 494                 return privacy;
 495         return !privacy;
 496 }
 497
 498
 499 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
 500                                          struct wpa_ssid *ssid,
 501                                          struct wpa_bss *bss)
 502 {
 503         struct wpa_ie_data ie;
 504         int proto_match = 0;
 505         const u8 *rsn_ie, *wpa_ie;
 506         int ret;
 507         int wep_ok;
 508
 509         ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
 510         if (ret >= 0)
 511                 return ret;
 512
 513         /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
 514         wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
 515                 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
 516                   ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
 517                  (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
 518
 519         rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 520         while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
 521                 proto_match++;
 522
 523                 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
 524                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - parse "
 525                                 "failed");
 526                         break;
 527                 }
 528
 529                 if (wep_ok &&
 530                     (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
 531                 {
 532                         wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on TSN "
 533                                 "in RSN IE");
 534                         return 1;
 535                 }
 536
 537                 if (!(ie.proto & ssid->proto)) {
 538                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - proto "
 539                                 "mismatch");
 540                         break;
 541                 }
 542
 543                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 544                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - PTK "
 545                                 "cipher mismatch");
 546                         break;
 547                 }
 548
 549                 if (!(ie.group_cipher & ssid->group_cipher)) {
 550                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - GTK "
 551                                 "cipher mismatch");
 552                         break;
 553                 }
 554
 555                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 556                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - key mgmt "
 557                                 "mismatch");
 558                         break;
 559                 }
 560
 561 #ifdef CONFIG_IEEE80211W
 562                 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
 563                     wpas_get_ssid_pmf(wpa_s, ssid) ==
 564                     MGMT_FRAME_PROTECTION_REQUIRED) {
 565                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - no mgmt "
 566                                 "frame protection");
 567                         break;
 568                 }
 569 #endif /* CONFIG_IEEE80211W */
 570                 if ((ie.capabilities & WPA_CAPABILITY_MFPR) &&
 571                     wpas_get_ssid_pmf(wpa_s, ssid) ==
 572                     NO_MGMT_FRAME_PROTECTION) {
 573                         wpa_dbg(wpa_s, MSG_DEBUG,
 574                                 "   skip RSN IE - no mgmt frame protection enabled but AP requires it");
 575                         break;
 576                 }
 577 #ifdef CONFIG_MBO
 578                 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
 579                     wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND) &&
 580                     wpas_get_ssid_pmf(wpa_s, ssid) !=
 581                     NO_MGMT_FRAME_PROTECTION) {
 582                         wpa_dbg(wpa_s, MSG_DEBUG,
 583                                 "   skip RSN IE - no mgmt frame protection enabled on MBO AP");
 584                         break;
 585                 }
 586 #endif /* CONFIG_MBO */
 587
 588                 wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on RSN IE");
 589                 return 1;
 590         }
 591
 592         wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 593         while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
 594                 proto_match++;
 595
 596                 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
 597                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - parse "
 598                                 "failed");
 599                         break;
 600                 }
 601
 602                 if (wep_ok &&
 603                     (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
 604                 {
 605                         wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on TSN "
 606                                 "in WPA IE");
 607                         return 1;
 608                 }
 609
 610                 if (!(ie.proto & ssid->proto)) {
 611                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - proto "
 612                                 "mismatch");
 613                         break;
 614                 }
 615
 616                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 617                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - PTK "
 618                                 "cipher mismatch");
 619                         break;
 620                 }
 621
 622                 if (!(ie.group_cipher & ssid->group_cipher)) {
 623                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - GTK "
 624                                 "cipher mismatch");
 625                         break;
 626                 }
 627
 628                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 629                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - key mgmt "
 630                                 "mismatch");
 631                         break;
 632                 }
 633
 634                 wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on WPA IE");
 635                 return 1;
 636         }
 637
 638         if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
 639             !rsn_ie) {
 640                 wpa_dbg(wpa_s, MSG_DEBUG, "   allow for non-WPA IEEE 802.1X");
 641                 return 1;
 642         }
 643
 644         if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
 645             wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
 646                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - no WPA/RSN proto match");
 647                 return 0;
 648         }
 649
 650         if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
 651             wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
 652                 wpa_dbg(wpa_s, MSG_DEBUG, "   allow in OSEN");
 653                 return 1;
 654         }
 655
 656         if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
 657                 wpa_dbg(wpa_s, MSG_DEBUG, "   allow in non-WPA/WPA2");
 658                 return 1;
 659         }
 660
 661         wpa_dbg(wpa_s, MSG_DEBUG, "   reject due to mismatch with "
 662                 "WPA/WPA2");
 663
 664         return 0;
 665 }
 666
 667
 668 static int freq_allowed(int *freqs, int freq)
 669 {
 670         int i;
 671
 672         if (freqs == NULL)
 673                 return 1;
 674
 675         for (i = 0; freqs[i]; i++)
 676                 if (freqs[i] == freq)
 677                         return 1;
 678         return 0;
 679 }
 680
 681
 682 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
 683 {
 684         const struct hostapd_hw_modes *mode = NULL, *modes;
 685         const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
 686         const u8 *rate_ie;
 687         int i, j, k;
 688
 689         if (bss->freq == 0)
 690                 return 1; /* Cannot do matching without knowing band */
 691
 692         modes = wpa_s->hw.modes;
 693         if (modes == NULL) {
 694                 /*
 695                  * The driver does not provide any additional information
 696                  * about the utilized hardware, so allow the connection attempt
 697                  * to continue.
 698                  */
 699                 return 1;
 700         }
 701
 702         for (i = 0; i < wpa_s->hw.num_modes; i++) {
 703                 for (j = 0; j < modes[i].num_channels; j++) {
 704                         int freq = modes[i].channels[j].freq;
 705                         if (freq == bss->freq) {
 706                                 if (mode &&
 707                                     mode->mode == HOSTAPD_MODE_IEEE80211G)
 708                                         break; /* do not allow 802.11b replace
 709                                                 * 802.11g */
 710                                 mode = &modes[i];
 711                                 break;
 712                         }
 713                 }
 714         }
 715
 716         if (mode == NULL)
 717                 return 0;
 718
 719         for (i = 0; i < (int) sizeof(scan_ie); i++) {
 720                 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
 721                 if (rate_ie == NULL)
 722                         continue;
 723
 724                 for (j = 2; j < rate_ie[1] + 2; j++) {
 725                         int flagged = !!(rate_ie[j] & 0x80);
 726                         int r = (rate_ie[j] & 0x7f) * 5;
 727
 728                         /*
 729                          * IEEE Std 802.11n-2009 7.3.2.2:
 730                          * The new BSS Membership selector value is encoded
 731                          * like a legacy basic rate, but it is not a rate and
 732                          * only indicates if the BSS members are required to
 733                          * support the mandatory features of Clause 20 [HT PHY]
 734                          * in order to join the BSS.
 735                          */
 736                         if (flagged && ((rate_ie[j] & 0x7f) ==
 737                                         BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
 738                                 if (!ht_supported(mode)) {
 739                                         wpa_dbg(wpa_s, MSG_DEBUG,
 740                                                 "   hardware does not support "
 741                                                 "HT PHY");
 742                                         return 0;
 743                                 }
 744                                 continue;
 745                         }
 746
 747                         /* There's also a VHT selector for 802.11ac */
 748                         if (flagged && ((rate_ie[j] & 0x7f) ==
 749                                         BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
 750                                 if (!vht_supported(mode)) {
 751                                         wpa_dbg(wpa_s, MSG_DEBUG,
 752                                                 "   hardware does not support "
 753                                                 "VHT PHY");
 754                                         return 0;
 755                                 }
 756                                 continue;
 757                         }
 758
 759                         if (!flagged)
 760                                 continue;
 761
 762                         /* check for legacy basic rates */
 763                         for (k = 0; k < mode->num_rates; k++) {
 764                                 if (mode->rates[k] == r)
 765                                         break;
 766                         }
 767                         if (k == mode->num_rates) {
 768                                 /*
 769                                  * IEEE Std 802.11-2007 7.3.2.2 demands that in
 770                                  * order to join a BSS all required rates
 771                                  * have to be supported by the hardware.
 772                                  */
 773                                 wpa_dbg(wpa_s, MSG_DEBUG,
 774                                         "   hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)",
 775                                         r / 10, r % 10,
 776                                         bss->freq, mode->mode, mode->num_rates);
 777                                 return 0;
 778                         }
 779                 }
 780         }
 781
 782         return 1;
 783 }
 784
 785
 786 /*
 787  * Test whether BSS is in an ESS.
 788  * This is done differently in DMG (60 GHz) and non-DMG bands
 789  */
 790 static int bss_is_ess(struct wpa_bss *bss)
 791 {
 792         if (bss_is_dmg(bss)) {
 793                 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
 794                         IEEE80211_CAP_DMG_AP;
 795         }
 796
 797         return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
 798                 IEEE80211_CAP_ESS);
 799 }
 800
 801
 802 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
 803 {
 804         size_t i;
 805
 806         for (i = 0; i < ETH_ALEN; i++) {
 807                 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
 808                         return 0;
 809         }
 810         return 1;
 811 }
 812
 813
 814 static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
 815 {
 816         size_t i;
 817
 818         for (i = 0; i < num; i++) {
 819                 const u8 *a = list + i * ETH_ALEN * 2;
 820                 const u8 *m = a + ETH_ALEN;
 821
 822                 if (match_mac_mask(a, addr, m))
 823                         return 1;
 824         }
 825         return 0;
 826 }
 827
 828
 829 struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
 830                                      int i, struct wpa_bss *bss,
 831                                      struct wpa_ssid *group,
 832                                      int only_first_ssid)
 833 {
 834         u8 wpa_ie_len, rsn_ie_len;
 835         int wpa;
 836         struct wpa_blacklist *e;
 837         const u8 *ie;
 838         struct wpa_ssid *ssid;
 839         int osen;
 840 #ifdef CONFIG_MBO
 841         const u8 *assoc_disallow;
 842 #endif /* CONFIG_MBO */
 843
 844         ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 845         wpa_ie_len = ie ? ie[1] : 0;
 846
 847         ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 848         rsn_ie_len = ie ? ie[1] : 0;
 849
 850         ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
 851         osen = ie != NULL;
 852
 853         wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
 854                 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s",
 855                 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
 856                 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, bss->freq,
 857                 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "",
 858                 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
 859                  wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ?
 860                 " p2p" : "",
 861                 osen ? " osen=1" : "");
 862
 863         e = wpa_blacklist_get(wpa_s, bss->bssid);
 864         if (e) {
 865                 int limit = 1;
 866                 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
 867                         /*
 868                          * When only a single network is enabled, we can
 869                          * trigger blacklisting on the first failure. This
 870                          * should not be done with multiple enabled networks to
 871                          * avoid getting forced to move into a worse ESS on
 872                          * single error if there are no other BSSes of the
 873                          * current ESS.
 874                          */
 875                         limit = 0;
 876                 }
 877                 if (e->count > limit) {
 878                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - blacklisted "
 879                                 "(count=%d limit=%d)", e->count, limit);
 880                         return NULL;
 881                 }
 882         }
 883
 884         if (bss->ssid_len == 0) {
 885                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID not known");
 886                 return NULL;
 887         }
 888
 889         if (disallowed_bssid(wpa_s, bss->bssid)) {
 890                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - BSSID disallowed");
 891                 return NULL;
 892         }
 893
 894         if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
 895                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID disallowed");
 896                 return NULL;
 897         }
 898
 899         wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
 900
 901         for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
 902                 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
 903                 int res;
 904
 905                 if (wpas_network_disabled(wpa_s, ssid)) {
 906                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - disabled");
 907                         continue;
 908                 }
 909
 910                 res = wpas_temp_disabled(wpa_s, ssid);
 911                 if (res > 0) {
 912                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - disabled "
 913                                 "temporarily for %d second(s)", res);
 914                         continue;
 915                 }
 916
 917 #ifdef CONFIG_WPS
 918                 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
 919                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - blacklisted "
 920                                 "(WPS)");
 921                         continue;
 922                 }
 923
 924                 if (wpa && ssid->ssid_len == 0 &&
 925                     wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
 926                         check_ssid = 0;
 927
 928                 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
 929                         /* Only allow wildcard SSID match if an AP
 930                          * advertises active WPS operation that matches
 931                          * with our mode. */
 932                         check_ssid = 1;
 933                         if (ssid->ssid_len == 0 &&
 934                             wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
 935                                 check_ssid = 0;
 936                 }
 937 #endif /* CONFIG_WPS */
 938
 939                 if (ssid->bssid_set && ssid->ssid_len == 0 &&
 940                     os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
 941                         check_ssid = 0;
 942
 943                 if (check_ssid &&
 944                     (bss->ssid_len != ssid->ssid_len ||
 945                      os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
 946                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID mismatch");
 947                         continue;
 948                 }
 949
 950                 if (ssid->bssid_set &&
 951                     os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
 952                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - BSSID mismatch");
 953                         continue;
 954                 }
 955
 956                 /* check blacklist */
 957                 if (ssid->num_bssid_blacklist &&
 958                     addr_in_list(bss->bssid, ssid->bssid_blacklist,
 959                                  ssid->num_bssid_blacklist)) {
 960                         wpa_dbg(wpa_s, MSG_DEBUG,
 961                                 "   skip - BSSID blacklisted");
 962                         continue;
 963                 }
 964
 965                 /* if there is a whitelist, only accept those APs */
 966                 if (ssid->num_bssid_whitelist &&
 967                     !addr_in_list(bss->bssid, ssid->bssid_whitelist,
 968                                   ssid->num_bssid_whitelist)) {
 969                         wpa_dbg(wpa_s, MSG_DEBUG,
 970                                 "   skip - BSSID not in whitelist");
 971                         continue;
 972                 }
 973
 974                 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
 975                         continue;
 976
 977                 if (!osen && !wpa &&
 978                     !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
 979                     !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
 980                     !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
 981                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - non-WPA network "
 982                                 "not allowed");
 983                         continue;
 984                 }
 985
 986                 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
 987                     has_wep_key(ssid)) {
 988                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - ignore WPA/WPA2 AP for WEP network block");
 989                         continue;
 990                 }
 991
 992                 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) {
 993                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - non-OSEN network "
 994                                 "not allowed");
 995                         continue;
 996                 }
 997
 998                 if (!wpa_supplicant_match_privacy(bss, ssid)) {
 999                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - privacy "
1000                                 "mismatch");
1001                         continue;
1002                 }
1003
1004                 if (!bss_is_ess(bss) && !bss_is_pbss(bss)) {
1005                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - neither ESS nor PBSS network");
1006                         continue;
1007                 }
1008
1009                 if (ssid->pbss != bss_is_pbss(bss)) {
1010                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - PBSS mismatch (ssid %d bss %d)",
1011                                 ssid->pbss, bss_is_pbss(bss));
1012                         continue;
1013                 }
1014
1015                 if (!freq_allowed(ssid->freq_list, bss->freq)) {
1016                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - frequency not "
1017                                 "allowed");
1018                         continue;
1019                 }
1020
1021                 if (!rate_match(wpa_s, bss)) {
1022                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - rate sets do "
1023                                 "not match");
1024                         continue;
1025                 }
1026
1027 #ifdef CONFIG_P2P
1028                 if (ssid->p2p_group &&
1029                     !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
1030                     !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
1031                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - no P2P IE seen");
1032                         continue;
1033                 }
1034
1035                 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
1036                         struct wpabuf *p2p_ie;
1037                         u8 dev_addr[ETH_ALEN];
1038
1039                         ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
1040                         if (ie == NULL) {
1041                                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - no P2P element");
1042                                 continue;
1043                         }
1044                         p2p_ie = wpa_bss_get_vendor_ie_multi(
1045                                 bss, P2P_IE_VENDOR_TYPE);
1046                         if (p2p_ie == NULL) {
1047                                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - could not fetch P2P element");
1048                                 continue;
1049                         }
1050
1051                         if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
1052                             || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
1053                                          ETH_ALEN) != 0) {
1054                                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - no matching GO P2P Device Address in P2P element");
1055                                 wpabuf_free(p2p_ie);
1056                                 continue;
1057                         }
1058                         wpabuf_free(p2p_ie);
1059                 }
1060
1061                 /*
1062                  * TODO: skip the AP if its P2P IE has Group Formation
1063                  * bit set in the P2P Group Capability Bitmap and we
1064                  * are not in Group Formation with that device.
1065                  */
1066 #endif /* CONFIG_P2P */
1067
1068                 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time))
1069                 {
1070                         struct os_reltime diff;
1071
1072                         os_reltime_sub(&wpa_s->scan_min_time,
1073                                        &bss->last_update, &diff);
1074                         wpa_dbg(wpa_s, MSG_DEBUG,
1075                                 "   skip - scan result not recent enough (%u.%06u seconds too old)",
1076                                 (unsigned int) diff.sec,
1077                                 (unsigned int) diff.usec);
1078                         continue;
1079                 }
1080 #ifdef CONFIG_MBO
1081                 assoc_disallow = wpas_mbo_get_bss_attr(
1082                         bss, MBO_ATTR_ID_ASSOC_DISALLOW);
1083                 if (assoc_disallow && assoc_disallow[1] >= 1) {
1084                         wpa_dbg(wpa_s, MSG_DEBUG,
1085                                 "   skip - MBO association disallowed (reason %u)",
1086                                 assoc_disallow[2]);
1087                         continue;
1088                 }
1089
1090                 if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) {
1091                         wpa_dbg(wpa_s, MSG_DEBUG,
1092                                 "   skip - MBO retry delay has not passed yet");
1093                         continue;
1094                 }
1095 #endif /* CONFIG_MBO */
1096
1097                 /* Matching configuration found */
1098                 return ssid;
1099         }
1100
1101         /* No matching configuration found */
1102         return NULL;
1103 }
1104
1105
1106 static struct wpa_bss *
1107 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
1108                           struct wpa_ssid *group,
1109                           struct wpa_ssid **selected_ssid,
1110                           int only_first_ssid)
1111 {
1112         unsigned int i;
1113
1114         if (only_first_ssid)
1115                 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
1116                         group->id);
1117         else
1118                 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
1119                         group->priority);
1120
1121         for (i = 0; i < wpa_s->last_scan_res_used; i++) {
1122                 struct wpa_bss *bss = wpa_s->last_scan_res[i];
1123                 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
1124                                                     only_first_ssid);
1125                 if (!*selected_ssid)
1126                         continue;
1127                 wpa_dbg(wpa_s, MSG_DEBUG, "   selected BSS " MACSTR
1128                         " ssid='%s'",
1129                         MAC2STR(bss->bssid),
1130                         wpa_ssid_txt(bss->ssid, bss->ssid_len));
1131                 return bss;
1132         }
1133
1134         return NULL;
1135 }
1136
1137
1138 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1139                                              struct wpa_ssid **selected_ssid)
1140 {
1141         struct wpa_bss *selected = NULL;
1142         int prio;
1143         struct wpa_ssid *next_ssid = NULL;
1144         struct wpa_ssid *ssid;
1145
1146         if (wpa_s->last_scan_res == NULL ||
1147             wpa_s->last_scan_res_used == 0)
1148                 return NULL; /* no scan results from last update */
1149
1150         if (wpa_s->next_ssid) {
1151                 /* check that next_ssid is still valid */
1152                 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1153                         if (ssid == wpa_s->next_ssid)
1154                                 break;
1155                 }
1156                 next_ssid = ssid;
1157                 wpa_s->next_ssid = NULL;
1158         }
1159
1160         while (selected == NULL) {
1161                 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1162                         if (next_ssid && next_ssid->priority ==
1163                             wpa_s->conf->pssid[prio]->priority) {
1164                                 selected = wpa_supplicant_select_bss(
1165                                         wpa_s, next_ssid, selected_ssid, 1);
1166                                 if (selected)
1167                                         break;
1168                         }
1169                         selected = wpa_supplicant_select_bss(
1170                                 wpa_s, wpa_s->conf->pssid[prio],
1171                                 selected_ssid, 0);
1172                         if (selected)
1173                                 break;
1174                 }
1175
1176                 if (selected == NULL && wpa_s->blacklist &&
1177                     !wpa_s->countermeasures) {
1178                         wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1179                                 "blacklist and try again");
1180                         wpa_blacklist_clear(wpa_s);
1181                         wpa_s->blacklist_cleared++;
1182                 } else if (selected == NULL)
1183                         break;
1184         }
1185
1186         ssid = *selected_ssid;
1187         if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set &&
1188             !ssid->passphrase && !ssid->ext_psk) {
1189                 const char *field_name, *txt = NULL;
1190
1191                 wpa_dbg(wpa_s, MSG_DEBUG,
1192                         "PSK/passphrase not yet available for the selected network");
1193
1194                 wpas_notify_network_request(wpa_s, ssid,
1195                                             WPA_CTRL_REQ_PSK_PASSPHRASE, NULL);
1196
1197                 field_name = wpa_supplicant_ctrl_req_to_string(
1198                         WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt);
1199                 if (field_name == NULL)
1200                         return NULL;
1201
1202                 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt);
1203
1204                 selected = NULL;
1205         }
1206
1207         return selected;
1208 }
1209
1210
1211 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1212                                         int timeout_sec, int timeout_usec)
1213 {
1214         if (!wpa_supplicant_enabled_networks(wpa_s)) {
1215                 /*
1216                  * No networks are enabled; short-circuit request so
1217                  * we don't wait timeout seconds before transitioning
1218                  * to INACTIVE state.
1219                  */
1220                 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1221                         "since there are no enabled networks");
1222                 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1223                 return;
1224         }
1225
1226         wpa_s->scan_for_connection = 1;
1227         wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1228 }
1229
1230
1231 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1232                            struct wpa_bss *selected,
1233                            struct wpa_ssid *ssid)
1234 {
1235         if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1236                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1237                         "PBC session overlap");
1238                 wpas_notify_wps_event_pbc_overlap(wpa_s);
1239 #ifdef CONFIG_P2P
1240                 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1241                     wpa_s->p2p_in_provisioning) {
1242                         eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1243                                                wpa_s, NULL);
1244                         return -1;
1245                 }
1246 #endif /* CONFIG_P2P */
1247
1248 #ifdef CONFIG_WPS
1249                 wpas_wps_pbc_overlap(wpa_s);
1250                 wpas_wps_cancel(wpa_s);
1251 #endif /* CONFIG_WPS */
1252                 return -1;
1253         }
1254
1255         wpa_msg(wpa_s, MSG_DEBUG,
1256                 "Considering connect request: reassociate: %d  selected: "
1257                 MACSTR "  bssid: " MACSTR "  pending: " MACSTR
1258                 "  wpa_state: %s  ssid=%p  current_ssid=%p",
1259                 wpa_s->reassociate, MAC2STR(selected->bssid),
1260                 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1261                 wpa_supplicant_state_txt(wpa_s->wpa_state),
1262                 ssid, wpa_s->current_ssid);
1263
1264         /*
1265          * Do not trigger new association unless the BSSID has changed or if
1266          * reassociation is requested. If we are in process of associating with
1267          * the selected BSSID, do not trigger new attempt.
1268          */
1269         if (wpa_s->reassociate ||
1270             (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1271              ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1272                wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1273               (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1274                os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1275                0) ||
1276               (is_zero_ether_addr(wpa_s->pending_bssid) &&
1277                ssid != wpa_s->current_ssid)))) {
1278                 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1279                         wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1280                         return 0;
1281                 }
1282                 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1283                         MAC2STR(selected->bssid));
1284                 wpa_supplicant_associate(wpa_s, selected, ssid);
1285         } else {
1286                 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1287                         "connect with the selected AP");
1288         }
1289
1290         return 0;
1291 }
1292
1293
1294 static struct wpa_ssid *
1295 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1296 {
1297         int prio;
1298         struct wpa_ssid *ssid;
1299
1300         for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1301                 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1302                 {
1303                         if (wpas_network_disabled(wpa_s, ssid))
1304                                 continue;
1305                         if (ssid->mode == IEEE80211_MODE_IBSS ||
1306                             ssid->mode == IEEE80211_MODE_AP ||
1307                             ssid->mode == IEEE80211_MODE_MESH)
1308                                 return ssid;
1309                 }
1310         }
1311         return NULL;
1312 }
1313
1314
1315 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1316  * on BSS added and BSS changed events */
1317 static void wpa_supplicant_rsn_preauth_scan_results(
1318         struct wpa_supplicant *wpa_s)
1319 {
1320         struct wpa_bss *bss;
1321
1322         if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1323                 return;
1324
1325         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1326                 const u8 *ssid, *rsn;
1327
1328                 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1329                 if (ssid == NULL)
1330                         continue;
1331
1332                 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1333                 if (rsn == NULL)
1334                         continue;
1335
1336                 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1337         }
1338
1339 }
1340
1341
1342 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1343                                        struct wpa_bss *selected,
1344                                        struct wpa_ssid *ssid)
1345 {
1346         struct wpa_bss *current_bss = NULL;
1347 #ifndef CONFIG_NO_ROAMING
1348         int min_diff;
1349 #endif /* CONFIG_NO_ROAMING */
1350
1351         if (wpa_s->reassociate)
1352                 return 1; /* explicit request to reassociate */
1353         if (wpa_s->wpa_state < WPA_ASSOCIATED)
1354                 return 1; /* we are not associated; continue */
1355         if (wpa_s->current_ssid == NULL)
1356                 return 1; /* unknown current SSID */
1357         if (wpa_s->current_ssid != ssid)
1358                 return 1; /* different network block */
1359
1360         if (wpas_driver_bss_selection(wpa_s))
1361                 return 0; /* Driver-based roaming */
1362
1363         if (wpa_s->current_ssid->ssid)
1364                 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1365                                           wpa_s->current_ssid->ssid,
1366                                           wpa_s->current_ssid->ssid_len);
1367         if (!current_bss)
1368                 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1369
1370         if (!current_bss)
1371                 return 1; /* current BSS not seen in scan results */
1372
1373         if (current_bss == selected)
1374                 return 0;
1375
1376         if (selected->last_update_idx > current_bss->last_update_idx)
1377                 return 1; /* current BSS not seen in the last scan */
1378
1379 #ifndef CONFIG_NO_ROAMING
1380         wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1381         wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR
1382                 " level=%d snr=%d est_throughput=%u",
1383                 MAC2STR(current_bss->bssid), current_bss->level,
1384                 current_bss->snr, current_bss->est_throughput);
1385         wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR
1386                 " level=%d snr=%d est_throughput=%u",
1387                 MAC2STR(selected->bssid), selected->level,
1388                 selected->snr, selected->est_throughput);
1389
1390         if (wpa_s->current_ssid->bssid_set &&
1391             os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1392             0) {
1393                 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1394                         "has preferred BSSID");
1395                 return 1;
1396         }
1397
1398         if (selected->est_throughput > current_bss->est_throughput + 5000) {
1399                 wpa_dbg(wpa_s, MSG_DEBUG,
1400                         "Allow reassociation - selected BSS has better estimated throughput");
1401                 return 1;
1402         }
1403
1404         if (current_bss->level < 0 && current_bss->level > selected->level) {
1405                 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1406                         "signal level");
1407                 return 0;
1408         }
1409
1410         min_diff = 2;
1411         if (current_bss->level < 0) {
1412                 if (current_bss->level < -85)
1413                         min_diff = 1;
1414                 else if (current_bss->level < -80)
1415                         min_diff = 2;
1416                 else if (current_bss->level < -75)
1417                         min_diff = 3;
1418                 else if (current_bss->level < -70)
1419                         min_diff = 4;
1420                 else
1421                         min_diff = 5;
1422         }
1423         if (abs(current_bss->level - selected->level) < min_diff) {
1424                 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1425                         "in signal level");
1426                 return 0;
1427         }
1428
1429         return 1;
1430 #else /* CONFIG_NO_ROAMING */
1431         return 0;
1432 #endif /* CONFIG_NO_ROAMING */
1433 }
1434
1435
1436 /* Return != 0 if no scan results could be fetched or if scan results should not
1437  * be shared with other virtual interfaces. */
1438 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1439                                               union wpa_event_data *data,
1440                                               int own_request)
1441 {
1442         struct wpa_scan_results *scan_res = NULL;
1443         int ret = 0;
1444         int ap = 0;
1445 #ifndef CONFIG_NO_RANDOM_POOL
1446         size_t i, num;
1447 #endif /* CONFIG_NO_RANDOM_POOL */
1448
1449 #ifdef CONFIG_AP
1450         if (wpa_s->ap_iface)
1451                 ap = 1;
1452 #endif /* CONFIG_AP */
1453
1454         wpa_supplicant_notify_scanning(wpa_s, 0);
1455
1456         scan_res = wpa_supplicant_get_scan_results(wpa_s,
1457                                                    data ? &data->scan_info :
1458                                                    NULL, 1);
1459         if (scan_res == NULL) {
1460                 if (wpa_s->conf->ap_scan == 2 || ap ||
1461                     wpa_s->scan_res_handler == scan_only_handler)
1462                         return -1;
1463                 if (!own_request)
1464                         return -1;
1465                 if (data && data->scan_info.external_scan)
1466                         return -1;
1467                 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1468                         "scanning again");
1469                 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1470                 ret = -1;
1471                 goto scan_work_done;
1472         }
1473
1474 #ifndef CONFIG_NO_RANDOM_POOL
1475         num = scan_res->num;
1476         if (num > 10)
1477                 num = 10;
1478         for (i = 0; i < num; i++) {
1479                 u8 buf[5];
1480                 struct wpa_scan_res *res = scan_res->res[i];
1481                 buf[0] = res->bssid[5];
1482                 buf[1] = res->qual & 0xff;
1483                 buf[2] = res->noise & 0xff;
1484                 buf[3] = res->level & 0xff;
1485                 buf[4] = res->tsf & 0xff;
1486                 random_add_randomness(buf, sizeof(buf));
1487         }
1488 #endif /* CONFIG_NO_RANDOM_POOL */
1489
1490         if (own_request && wpa_s->scan_res_handler &&
1491             !(data && data->scan_info.external_scan)) {
1492                 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1493                                          struct wpa_scan_results *scan_res);
1494
1495                 scan_res_handler = wpa_s->scan_res_handler;
1496                 wpa_s->scan_res_handler = NULL;
1497                 scan_res_handler(wpa_s, scan_res);
1498                 ret = -2;
1499                 goto scan_work_done;
1500         }
1501
1502         if (ap) {
1503                 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1504 #ifdef CONFIG_AP
1505                 if (wpa_s->ap_iface->scan_cb)
1506                         wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1507 #endif /* CONFIG_AP */
1508                 goto scan_work_done;
1509         }
1510
1511         wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1512                 wpa_s->own_scan_running,
1513                 data ? data->scan_info.external_scan : 0);
1514         if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1515             wpa_s->manual_scan_use_id && wpa_s->own_scan_running &&
1516             own_request && !(data && data->scan_info.external_scan)) {
1517                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1518                              wpa_s->manual_scan_id);
1519                 wpa_s->manual_scan_use_id = 0;
1520         } else {
1521                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1522         }
1523         wpas_notify_scan_results(wpa_s);
1524
1525         wpas_notify_scan_done(wpa_s, 1);
1526
1527         if (data && data->scan_info.external_scan) {
1528                 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1529                 wpa_scan_results_free(scan_res);
1530                 return 0;
1531         }
1532
1533         if (wnm_scan_process(wpa_s, 1) > 0)
1534                 goto scan_work_done;
1535
1536         if (sme_proc_obss_scan(wpa_s) > 0)
1537                 goto scan_work_done;
1538
1539         if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1540                 goto scan_work_done;
1541
1542         if (autoscan_notify_scan(wpa_s, scan_res))
1543                 goto scan_work_done;
1544
1545         if (wpa_s->disconnected) {
1546                 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1547                 goto scan_work_done;
1548         }
1549
1550         if (!wpas_driver_bss_selection(wpa_s) &&
1551             bgscan_notify_scan(wpa_s, scan_res) == 1)
1552                 goto scan_work_done;
1553
1554         wpas_wps_update_ap_info(wpa_s, scan_res);
1555
1556         if (wpa_s->wpa_state >= WPA_AUTHENTICATING &&
1557             wpa_s->wpa_state < WPA_COMPLETED)
1558                 goto scan_work_done;
1559
1560         wpa_scan_results_free(scan_res);
1561
1562         if (own_request && wpa_s->scan_work) {
1563                 struct wpa_radio_work *work = wpa_s->scan_work;
1564                 wpa_s->scan_work = NULL;
1565                 radio_work_done(work);
1566         }
1567
1568         return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
1569
1570 scan_work_done:
1571         wpa_scan_results_free(scan_res);
1572         if (own_request && wpa_s->scan_work) {
1573                 struct wpa_radio_work *work = wpa_s->scan_work;
1574                 wpa_s->scan_work = NULL;
1575                 radio_work_done(work);
1576         }
1577         return ret;
1578 }
1579
1580
1581 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
1582                                               int new_scan, int own_request)
1583 {
1584         struct wpa_bss *selected;
1585         struct wpa_ssid *ssid = NULL;
1586         int time_to_reenable = wpas_reenabled_network_time(wpa_s);
1587
1588         if (time_to_reenable > 0) {
1589                 wpa_dbg(wpa_s, MSG_DEBUG,
1590                         "Postpone network selection by %d seconds since all networks are disabled",
1591                         time_to_reenable);
1592                 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
1593                 eloop_register_timeout(time_to_reenable, 0,
1594                                        wpas_network_reenabled, wpa_s, NULL);
1595                 return 0;
1596         }
1597
1598         if (wpa_s->p2p_mgmt)
1599                 return 0; /* no normal connection on p2p_mgmt interface */
1600
1601         selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1602
1603         if (selected) {
1604                 int skip;
1605                 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1606                 if (skip) {
1607                         if (new_scan)
1608                                 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1609                         return 0;
1610                 }
1611
1612                 if (ssid != wpa_s->current_ssid &&
1613                     wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1614                         wpa_s->own_disconnect_req = 1;
1615                         wpa_supplicant_deauthenticate(
1616                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1617                 }
1618
1619                 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1620                         wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1621                         return -1;
1622                 }
1623                 if (new_scan)
1624                         wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1625                 /*
1626                  * Do not notify other virtual radios of scan results since we do not
1627                  * want them to start other associations at the same time.
1628                  */
1629                 return 1;
1630         } else {
1631 #ifdef CONFIG_MESH
1632                 if (wpa_s->ifmsh) {
1633                         wpa_msg(wpa_s, MSG_INFO,
1634                                 "Avoiding join because we already joined a mesh group");
1635                         return 0;
1636                 }
1637 #endif /* CONFIG_MESH */
1638                 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1639                 ssid = wpa_supplicant_pick_new_network(wpa_s);
1640                 if (ssid) {
1641                         wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1642                         wpa_supplicant_associate(wpa_s, NULL, ssid);
1643                         if (new_scan)
1644                                 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1645                 } else if (own_request) {
1646                         /*
1647                          * No SSID found. If SCAN results are as a result of
1648                          * own scan request and not due to a scan request on
1649                          * another shared interface, try another scan.
1650                          */
1651                         int timeout_sec = wpa_s->scan_interval;
1652                         int timeout_usec = 0;
1653 #ifdef CONFIG_P2P
1654                         int res;
1655
1656                         res = wpas_p2p_scan_no_go_seen(wpa_s);
1657                         if (res == 2)
1658                                 return 2;
1659                         if (res == 1)
1660                                 return 0;
1661
1662                         if (wpa_s->p2p_in_provisioning ||
1663                             wpa_s->show_group_started ||
1664                             wpa_s->p2p_in_invitation) {
1665                                 /*
1666                                  * Use shorter wait during P2P Provisioning
1667                                  * state and during P2P join-a-group operation
1668                                  * to speed up group formation.
1669                                  */
1670                                 timeout_sec = 0;
1671                                 timeout_usec = 250000;
1672                                 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1673                                                             timeout_usec);
1674                                 return 0;
1675                         }
1676 #endif /* CONFIG_P2P */
1677 #ifdef CONFIG_INTERWORKING
1678                         if (wpa_s->conf->auto_interworking &&
1679                             wpa_s->conf->interworking &&
1680                             wpa_s->conf->cred) {
1681                                 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1682                                         "start ANQP fetch since no matching "
1683                                         "networks found");
1684                                 wpa_s->network_select = 1;
1685                                 wpa_s->auto_network_select = 1;
1686                                 interworking_start_fetch_anqp(wpa_s);
1687                                 return 1;
1688                         }
1689 #endif /* CONFIG_INTERWORKING */
1690 #ifdef CONFIG_WPS
1691                         if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
1692                                 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1693                                 timeout_sec = 0;
1694                                 timeout_usec = 500000;
1695                                 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1696                                                             timeout_usec);
1697                                 return 0;
1698                         }
1699 #endif /* CONFIG_WPS */
1700                         if (wpa_supplicant_req_sched_scan(wpa_s))
1701                                 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1702                                                             timeout_usec);
1703
1704                         wpa_msg_ctrl(wpa_s, MSG_INFO,
1705                                      WPA_EVENT_NETWORK_NOT_FOUND);
1706                 }
1707         }
1708         return 0;
1709 }
1710
1711
1712 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1713                                              union wpa_event_data *data)
1714 {
1715         struct wpa_supplicant *ifs;
1716         int res;
1717
1718         res = _wpa_supplicant_event_scan_results(wpa_s, data, 1);
1719         if (res == 2) {
1720                 /*
1721                  * Interface may have been removed, so must not dereference
1722                  * wpa_s after this.
1723                  */
1724                 return 1;
1725         }
1726         if (res != 0) {
1727                 /*
1728                  * If no scan results could be fetched, then no need to
1729                  * notify those interfaces that did not actually request
1730                  * this scan. Similarly, if scan results started a new operation on this
1731                  * interface, do not notify other interfaces to avoid concurrent
1732                  * operations during a connection attempt.
1733                  */
1734                 return 0;
1735         }
1736
1737         /*
1738          * Check other interfaces to see if they share the same radio. If
1739          * so, they get updated with this same scan info.
1740          */
1741         dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1742                          radio_list) {
1743                 if (ifs != wpa_s) {
1744                         wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1745                                    "sibling", ifs->ifname);
1746                         _wpa_supplicant_event_scan_results(ifs, data, 0);
1747                 }
1748         }
1749
1750         return 0;
1751 }
1752
1753 #endif /* CONFIG_NO_SCAN_PROCESSING */
1754
1755
1756 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1757 {
1758 #ifdef CONFIG_NO_SCAN_PROCESSING
1759         return -1;
1760 #else /* CONFIG_NO_SCAN_PROCESSING */
1761         struct os_reltime now;
1762
1763         if (wpa_s->last_scan_res_used == 0)
1764                 return -1;
1765
1766         os_get_reltime(&now);
1767         if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
1768                 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1769                 return -1;
1770         }
1771
1772         return wpas_select_network_from_last_scan(wpa_s, 0, 1);
1773 #endif /* CONFIG_NO_SCAN_PROCESSING */
1774 }
1775
1776 #ifdef CONFIG_WNM
1777
1778 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1779 {
1780         struct wpa_supplicant *wpa_s = eloop_ctx;
1781
1782         if (wpa_s->wpa_state < WPA_ASSOCIATED)
1783                 return;
1784
1785         if (!wpa_s->no_keep_alive) {
1786                 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1787                            MAC2STR(wpa_s->bssid));
1788                 /* TODO: could skip this if normal data traffic has been sent */
1789                 /* TODO: Consider using some more appropriate data frame for
1790                  * this */
1791                 if (wpa_s->l2)
1792                         l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1793                                        (u8 *) "", 0);
1794         }
1795
1796 #ifdef CONFIG_SME
1797         if (wpa_s->sme.bss_max_idle_period) {
1798                 unsigned int msec;
1799                 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1800                 if (msec > 100)
1801                         msec -= 100;
1802                 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1803                                        wnm_bss_keep_alive, wpa_s, NULL);
1804         }
1805 #endif /* CONFIG_SME */
1806 }
1807
1808
1809 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1810                                    const u8 *ies, size_t ies_len)
1811 {
1812         struct ieee802_11_elems elems;
1813
1814         if (ies == NULL)
1815                 return;
1816
1817         if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1818                 return;
1819
1820 #ifdef CONFIG_SME
1821         if (elems.bss_max_idle_period) {
1822                 unsigned int msec;
1823                 wpa_s->sme.bss_max_idle_period =
1824                         WPA_GET_LE16(elems.bss_max_idle_period);
1825                 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1826                            "TU)%s", wpa_s->sme.bss_max_idle_period,
1827                            (elems.bss_max_idle_period[2] & 0x01) ?
1828                            " (protected keep-live required)" : "");
1829                 if (wpa_s->sme.bss_max_idle_period == 0)
1830                         wpa_s->sme.bss_max_idle_period = 1;
1831                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1832                         eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1833                          /* msec times 1000 */
1834                         msec = wpa_s->sme.bss_max_idle_period * 1024;
1835                         if (msec > 100)
1836                                 msec -= 100;
1837                         eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1838                                                wnm_bss_keep_alive, wpa_s,
1839                                                NULL);
1840                 }
1841         }
1842 #endif /* CONFIG_SME */
1843 }
1844
1845 #endif /* CONFIG_WNM */
1846
1847
1848 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1849 {
1850 #ifdef CONFIG_WNM
1851         eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1852 #endif /* CONFIG_WNM */
1853 }
1854
1855
1856 #ifdef CONFIG_INTERWORKING
1857
1858 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1859                             size_t len)
1860 {
1861         int res;
1862
1863         wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1864         res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1865         if (res) {
1866                 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1867         }
1868
1869         return res;
1870 }
1871
1872
1873 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1874                                             const u8 *ies, size_t ies_len)
1875 {
1876         struct ieee802_11_elems elems;
1877
1878         if (ies == NULL)
1879                 return;
1880
1881         if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1882                 return;
1883
1884         if (elems.qos_map_set) {
1885                 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1886                                  elems.qos_map_set_len);
1887         }
1888 }
1889
1890 #endif /* CONFIG_INTERWORKING */
1891
1892
1893 #ifdef CONFIG_FST
1894 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s,
1895                                 const u8 *ie, size_t ie_len)
1896 {
1897         struct mb_ies_info mb_ies;
1898
1899         if (!ie || !ie_len || !wpa_s->fst)
1900             return -ENOENT;
1901
1902         os_memset(&mb_ies, 0, sizeof(mb_ies));
1903
1904         while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) {
1905                 size_t len;
1906
1907                 len = 2 + ie[1];
1908                 if (len > ie_len) {
1909                         wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found",
1910                                     ie, ie_len);
1911                         break;
1912                 }
1913
1914                 if (ie[0] == WLAN_EID_MULTI_BAND) {
1915                         wpa_printf(MSG_DEBUG, "MB IE of %u bytes found",
1916                                    (unsigned int) len);
1917                         mb_ies.ies[mb_ies.nof_ies].ie = ie + 2;
1918                         mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2;
1919                         mb_ies.nof_ies++;
1920                 }
1921
1922                 ie_len -= len;
1923                 ie += len;
1924         }
1925
1926         if (mb_ies.nof_ies > 0) {
1927                 wpabuf_free(wpa_s->received_mb_ies);
1928                 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies);
1929                 return 0;
1930         }
1931
1932         return -ENOENT;
1933 }
1934 #endif /* CONFIG_FST */
1935
1936
1937 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1938                                           union wpa_event_data *data)
1939 {
1940         int l, len, found = 0, wpa_found, rsn_found;
1941         const u8 *p;
1942 #ifdef CONFIG_IEEE80211R
1943         u8 bssid[ETH_ALEN];
1944 #endif /* CONFIG_IEEE80211R */
1945
1946         wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1947         if (data->assoc_info.req_ies)
1948                 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1949                             data->assoc_info.req_ies_len);
1950         if (data->assoc_info.resp_ies) {
1951                 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1952                             data->assoc_info.resp_ies_len);
1953 #ifdef CONFIG_TDLS
1954                 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1955                                         data->assoc_info.resp_ies_len);
1956 #endif /* CONFIG_TDLS */
1957 #ifdef CONFIG_WNM
1958                 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1959                                        data->assoc_info.resp_ies_len);
1960 #endif /* CONFIG_WNM */
1961 #ifdef CONFIG_INTERWORKING
1962                 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1963                                                 data->assoc_info.resp_ies_len);
1964 #endif /* CONFIG_INTERWORKING */
1965         }
1966         if (data->assoc_info.beacon_ies)
1967                 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1968                             data->assoc_info.beacon_ies,
1969                             data->assoc_info.beacon_ies_len);
1970         if (data->assoc_info.freq)
1971                 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1972                         data->assoc_info.freq);
1973
1974         p = data->assoc_info.req_ies;
1975         l = data->assoc_info.req_ies_len;
1976
1977         /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1978         while (p && l >= 2) {
1979                 len = p[1] + 2;
1980                 if (len > l) {
1981                         wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1982                                     p, l);
1983                         break;
1984                 }
1985                 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1986                      (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1987                     (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1988                         if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1989                                 break;
1990                         found = 1;
1991                         wpa_find_assoc_pmkid(wpa_s);
1992                         break;
1993                 }
1994                 l -= len;
1995                 p += len;
1996         }
1997         if (!found && data->assoc_info.req_ies)
1998                 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1999
2000 #ifdef CONFIG_IEEE80211R
2001 #ifdef CONFIG_SME
2002         if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
2003                 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2004                     wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2005                                                  data->assoc_info.resp_ies,
2006                                                  data->assoc_info.resp_ies_len,
2007                                                  bssid) < 0) {
2008                         wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2009                                 "Reassociation Response failed");
2010                         wpa_supplicant_deauthenticate(
2011                                 wpa_s, WLAN_REASON_INVALID_IE);
2012                         return -1;
2013                 }
2014         }
2015
2016         p = data->assoc_info.resp_ies;
2017         l = data->assoc_info.resp_ies_len;
2018
2019 #ifdef CONFIG_WPS_STRICT
2020         if (p && wpa_s->current_ssid &&
2021             wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
2022                 struct wpabuf *wps;
2023                 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
2024                 if (wps == NULL) {
2025                         wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
2026                                 "include WPS IE in (Re)Association Response");
2027                         return -1;
2028                 }
2029
2030                 if (wps_validate_assoc_resp(wps) < 0) {
2031                         wpabuf_free(wps);
2032                         wpa_supplicant_deauthenticate(
2033                                 wpa_s, WLAN_REASON_INVALID_IE);
2034                         return -1;
2035                 }
2036                 wpabuf_free(wps);
2037         }
2038 #endif /* CONFIG_WPS_STRICT */
2039
2040         /* Go through the IEs and make a copy of the MDIE, if present. */
2041         while (p && l >= 2) {
2042                 len = p[1] + 2;
2043                 if (len > l) {
2044                         wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
2045                                     p, l);
2046                         break;
2047                 }
2048                 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
2049                     p[1] >= MOBILITY_DOMAIN_ID_LEN) {
2050                         wpa_s->sme.ft_used = 1;
2051                         os_memcpy(wpa_s->sme.mobility_domain, p + 2,
2052                                   MOBILITY_DOMAIN_ID_LEN);
2053                         break;
2054                 }
2055                 l -= len;
2056                 p += len;
2057         }
2058 #endif /* CONFIG_SME */
2059
2060         /* Process FT when SME is in the driver */
2061         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
2062             wpa_ft_is_completed(wpa_s->wpa)) {
2063                 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
2064                     wpa_ft_validate_reassoc_resp(wpa_s->wpa,
2065                                                  data->assoc_info.resp_ies,
2066                                                  data->assoc_info.resp_ies_len,
2067                                                  bssid) < 0) {
2068                         wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
2069                                 "Reassociation Response failed");
2070                         wpa_supplicant_deauthenticate(
2071                                 wpa_s, WLAN_REASON_INVALID_IE);
2072                         return -1;
2073                 }
2074                 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
2075         }
2076
2077         wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
2078                              data->assoc_info.resp_ies_len);
2079 #endif /* CONFIG_IEEE80211R */
2080
2081         /* WPA/RSN IE from Beacon/ProbeResp */
2082         p = data->assoc_info.beacon_ies;
2083         l = data->assoc_info.beacon_ies_len;
2084
2085         /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
2086          */
2087         wpa_found = rsn_found = 0;
2088         while (p && l >= 2) {
2089                 len = p[1] + 2;
2090                 if (len > l) {
2091                         wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
2092                                     p, l);
2093                         break;
2094                 }
2095                 if (!wpa_found &&
2096                     p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
2097                     os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
2098                         wpa_found = 1;
2099                         wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
2100                 }
2101
2102                 if (!rsn_found &&
2103                     p[0] == WLAN_EID_RSN && p[1] >= 2) {
2104                         rsn_found = 1;
2105                         wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
2106                 }
2107
2108                 l -= len;
2109                 p += len;
2110         }
2111
2112         if (!wpa_found && data->assoc_info.beacon_ies)
2113                 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
2114         if (!rsn_found && data->assoc_info.beacon_ies)
2115                 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
2116         if (wpa_found || rsn_found)
2117                 wpa_s->ap_ies_from_associnfo = 1;
2118
2119         if (wpa_s->assoc_freq && data->assoc_info.freq &&
2120             wpa_s->assoc_freq != data->assoc_info.freq) {
2121                 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
2122                            "%u to %u MHz",
2123                            wpa_s->assoc_freq, data->assoc_info.freq);
2124                 wpa_supplicant_update_scan_results(wpa_s);
2125         }
2126
2127         wpa_s->assoc_freq = data->assoc_info.freq;
2128
2129         return 0;
2130 }
2131
2132
2133 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
2134 {
2135         const u8 *bss_wpa = NULL, *bss_rsn = NULL;
2136
2137         if (!wpa_s->current_bss || !wpa_s->current_ssid)
2138                 return -1;
2139
2140         if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
2141                 return 0;
2142
2143         bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
2144                                         WPA_IE_VENDOR_TYPE);
2145         bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
2146
2147         if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
2148                                  bss_wpa ? 2 + bss_wpa[1] : 0) ||
2149             wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
2150                                  bss_rsn ? 2 + bss_rsn[1] : 0))
2151                 return -1;
2152
2153         return 0;
2154 }
2155
2156
2157 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s,
2158                                      union wpa_event_data *data)
2159 {
2160 #ifdef CONFIG_FST
2161         struct assoc_info *ai = data ? &data->assoc_info : NULL;
2162         struct wpa_bss *bss = wpa_s->current_bss;
2163         const u8 *ieprb, *iebcn;
2164
2165         wpabuf_free(wpa_s->received_mb_ies);
2166         wpa_s->received_mb_ies = NULL;
2167
2168         if (ai &&
2169             !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) {
2170                 wpa_printf(MSG_DEBUG,
2171                            "FST: MB IEs updated from Association Response frame");
2172                 return;
2173         }
2174
2175         if (ai &&
2176             !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) {
2177                 wpa_printf(MSG_DEBUG,
2178                            "FST: MB IEs updated from association event Beacon IEs");
2179                 return;
2180         }
2181
2182         if (!bss)
2183                 return;
2184
2185         ieprb = (const u8 *) (bss + 1);
2186         iebcn = ieprb + bss->ie_len;
2187
2188         if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len))
2189                 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE");
2190         else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len))
2191                 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE");
2192 #endif /* CONFIG_FST */
2193 }
2194
2195
2196 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
2197                                        union wpa_event_data *data)
2198 {
2199         u8 bssid[ETH_ALEN];
2200         int ft_completed;
2201         int new_bss = 0;
2202
2203 #ifdef CONFIG_AP
2204         if (wpa_s->ap_iface) {
2205                 if (!data)
2206                         return;
2207                 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
2208                                     data->assoc_info.addr,
2209                                     data->assoc_info.req_ies,
2210                                     data->assoc_info.req_ies_len,
2211                                     data->assoc_info.reassoc);
2212                 return;
2213         }
2214 #endif /* CONFIG_AP */
2215
2216         eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL);
2217
2218         ft_completed = wpa_ft_is_completed(wpa_s->wpa);
2219         if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
2220                 return;
2221
2222         if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
2223                 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
2224                 wpa_supplicant_deauthenticate(
2225                         wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2226                 return;
2227         }
2228
2229         wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
2230         if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
2231                 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
2232                         MACSTR, MAC2STR(bssid));
2233                 new_bss = 1;
2234                 random_add_randomness(bssid, ETH_ALEN);
2235                 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
2236                 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
2237                 wpas_notify_bssid_changed(wpa_s);
2238
2239                 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
2240                         wpa_clear_keys(wpa_s, bssid);
2241                 }
2242                 if (wpa_supplicant_select_config(wpa_s) < 0) {
2243                         wpa_supplicant_deauthenticate(
2244                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2245                         return;
2246                 }
2247         }
2248
2249         if (wpa_s->conf->ap_scan == 1 &&
2250             wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
2251                 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss)
2252                         wpa_msg(wpa_s, MSG_WARNING,
2253                                 "WPA/RSN IEs not updated");
2254         }
2255
2256         wpas_fst_update_mb_assoc(wpa_s, data);
2257
2258 #ifdef CONFIG_SME
2259         os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
2260         wpa_s->sme.prev_bssid_set = 1;
2261         wpa_s->sme.last_unprot_disconnect.sec = 0;
2262 #endif /* CONFIG_SME */
2263
2264         wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
2265         if (wpa_s->current_ssid) {
2266                 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
2267                  * initialized before association, but for other modes,
2268                  * initialize PC/SC here, if the current configuration needs
2269                  * smartcard or SIM/USIM. */
2270                 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
2271         }
2272         wpa_sm_notify_assoc(wpa_s->wpa, bssid);
2273         if (wpa_s->l2)
2274                 l2_packet_notify_auth_start(wpa_s->l2);
2275
2276         /*
2277          * Set portEnabled first to FALSE in order to get EAP state machine out
2278          * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
2279          * state machine may transit to AUTHENTICATING state based on obsolete
2280          * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
2281          * AUTHENTICATED without ever giving chance to EAP state machine to
2282          * reset the state.
2283          */
2284         if (!ft_completed) {
2285                 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
2286                 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
2287         }
2288         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
2289                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
2290         /* 802.1X::portControl = Auto */
2291         eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
2292         wpa_s->eapol_received = 0;
2293         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2294             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
2295             (wpa_s->current_ssid &&
2296              wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
2297                 if (wpa_s->current_ssid &&
2298                     wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
2299                     (wpa_s->drv_flags &
2300                      WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2301                         /*
2302                          * Set the key after having received joined-IBSS event
2303                          * from the driver.
2304                          */
2305                         wpa_supplicant_set_wpa_none_key(wpa_s,
2306                                                         wpa_s->current_ssid);
2307                 }
2308                 wpa_supplicant_cancel_auth_timeout(wpa_s);
2309                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2310         } else if (!ft_completed) {
2311                 /* Timeout for receiving the first EAPOL packet */
2312                 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
2313         }
2314         wpa_supplicant_cancel_scan(wpa_s);
2315
2316         if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2317             wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
2318                 /*
2319                  * We are done; the driver will take care of RSN 4-way
2320                  * handshake.
2321                  */
2322                 wpa_supplicant_cancel_auth_timeout(wpa_s);
2323                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2324                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2325                 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2326         } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2327                    wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
2328                 /*
2329                  * The driver will take care of RSN 4-way handshake, so we need
2330                  * to allow EAPOL supplicant to complete its work without
2331                  * waiting for WPA supplicant.
2332                  */
2333                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2334         } else if (ft_completed) {
2335                 /*
2336                  * FT protocol completed - make sure EAPOL state machine ends
2337                  * up in authenticated.
2338                  */
2339                 wpa_supplicant_cancel_auth_timeout(wpa_s);
2340                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2341                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2342                 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2343         }
2344
2345         wpa_s->last_eapol_matches_bssid = 0;
2346
2347         if (wpa_s->pending_eapol_rx) {
2348                 struct os_reltime now, age;
2349                 os_get_reltime(&now);
2350                 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
2351                 if (age.sec == 0 && age.usec < 100000 &&
2352                     os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2353                     0) {
2354                         wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2355                                 "frame that was received just before "
2356                                 "association notification");
2357                         wpa_supplicant_rx_eapol(
2358                                 wpa_s, wpa_s->pending_eapol_rx_src,
2359                                 wpabuf_head(wpa_s->pending_eapol_rx),
2360                                 wpabuf_len(wpa_s->pending_eapol_rx));
2361                 }
2362                 wpabuf_free(wpa_s->pending_eapol_rx);
2363                 wpa_s->pending_eapol_rx = NULL;
2364         }
2365
2366         if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2367              wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
2368             wpa_s->current_ssid &&
2369             (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2370                 /* Set static WEP keys again */
2371                 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2372         }
2373
2374 #ifdef CONFIG_IBSS_RSN
2375         if (wpa_s->current_ssid &&
2376             wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2377             wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2378             wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2379             wpa_s->ibss_rsn == NULL) {
2380                 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2381                 if (!wpa_s->ibss_rsn) {
2382                         wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2383                         wpa_supplicant_deauthenticate(
2384                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2385                         return;
2386                 }
2387
2388                 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2389         }
2390 #endif /* CONFIG_IBSS_RSN */
2391
2392         wpas_wps_notify_assoc(wpa_s, bssid);
2393
2394         if (data) {
2395                 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2396                                     data->assoc_info.resp_ies_len,
2397                                     &data->assoc_info.wmm_params);
2398
2399                 if (wpa_s->reassoc_same_bss)
2400                         wmm_ac_restore_tspecs(wpa_s);
2401         }
2402 }
2403
2404
2405 static int disconnect_reason_recoverable(u16 reason_code)
2406 {
2407         return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2408                 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2409                 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2410 }
2411
2412
2413 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
2414                                           u16 reason_code,
2415                                           int locally_generated)
2416 {
2417         const u8 *bssid;
2418
2419         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2420                 /*
2421                  * At least Host AP driver and a Prism3 card seemed to be
2422                  * generating streams of disconnected events when configuring
2423                  * IBSS for WPA-None. Ignore them for now.
2424                  */
2425                 return;
2426         }
2427
2428         bssid = wpa_s->bssid;
2429         if (is_zero_ether_addr(bssid))
2430                 bssid = wpa_s->pending_bssid;
2431
2432         if (!is_zero_ether_addr(bssid) ||
2433             wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2434                 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2435                         " reason=%d%s",
2436                         MAC2STR(bssid), reason_code,
2437                         locally_generated ? " locally_generated=1" : "");
2438         }
2439 }
2440
2441
2442 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2443                                  int locally_generated)
2444 {
2445         if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2446             !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2447                 return 0; /* Not in 4-way handshake with PSK */
2448
2449         /*
2450          * It looks like connection was lost while trying to go through PSK
2451          * 4-way handshake. Filter out known disconnection cases that are caused
2452          * by something else than PSK mismatch to avoid confusing reports.
2453          */
2454
2455         if (locally_generated) {
2456                 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2457                         return 0;
2458         }
2459
2460         return 1;
2461 }
2462
2463
2464 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2465                                                  u16 reason_code,
2466                                                  int locally_generated)
2467 {
2468         const u8 *bssid;
2469         int authenticating;
2470         u8 prev_pending_bssid[ETH_ALEN];
2471         struct wpa_bss *fast_reconnect = NULL;
2472         struct wpa_ssid *fast_reconnect_ssid = NULL;
2473         struct wpa_ssid *last_ssid;
2474
2475         authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2476         os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
2477
2478         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2479                 /*
2480                  * At least Host AP driver and a Prism3 card seemed to be
2481                  * generating streams of disconnected events when configuring
2482                  * IBSS for WPA-None. Ignore them for now.
2483                  */
2484                 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2485                         "IBSS/WPA-None mode");
2486                 return;
2487         }
2488
2489         if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
2490                 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2491                         "pre-shared key may be incorrect");
2492                 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2493                         return; /* P2P group removed */
2494                 wpas_auth_failed(wpa_s, "WRONG_KEY");
2495         }
2496         if (!wpa_s->disconnected &&
2497             (!wpa_s->auto_reconnect_disabled ||
2498              wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
2499              wpas_wps_searching(wpa_s) ||
2500              wpas_wps_reenable_networks_pending(wpa_s))) {
2501                 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
2502                         "reconnect (wps=%d/%d wpa_state=%d)",
2503                         wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2504                         wpas_wps_searching(wpa_s),
2505                         wpa_s->wpa_state);
2506                 if (wpa_s->wpa_state == WPA_COMPLETED &&
2507                     wpa_s->current_ssid &&
2508                     wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
2509                     !locally_generated &&
2510                     disconnect_reason_recoverable(reason_code)) {
2511                         /*
2512                          * It looks like the AP has dropped association with
2513                          * us, but could allow us to get back in. Try to
2514                          * reconnect to the same BSS without full scan to save
2515                          * time for some common cases.
2516                          */
2517                         fast_reconnect = wpa_s->current_bss;
2518                         fast_reconnect_ssid = wpa_s->current_ssid;
2519                 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
2520                         wpa_supplicant_req_scan(wpa_s, 0, 100000);
2521                 else
2522                         wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2523                                 "immediate scan");
2524         } else {
2525                 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
2526                         "try to re-connect");
2527                 wpa_s->reassociate = 0;
2528                 wpa_s->disconnected = 1;
2529                 if (!wpa_s->pno)
2530                         wpa_supplicant_cancel_sched_scan(wpa_s);
2531         }
2532         bssid = wpa_s->bssid;
2533         if (is_zero_ether_addr(bssid))
2534                 bssid = wpa_s->pending_bssid;
2535         if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2536                 wpas_connection_failed(wpa_s, bssid);
2537         wpa_sm_notify_disassoc(wpa_s->wpa);
2538         if (locally_generated)
2539                 wpa_s->disconnect_reason = -reason_code;
2540         else
2541                 wpa_s->disconnect_reason = reason_code;
2542         wpas_notify_disconnect_reason(wpa_s);
2543         if (wpa_supplicant_dynamic_keys(wpa_s)) {
2544                 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
2545                 wpa_clear_keys(wpa_s, wpa_s->bssid);
2546         }
2547         last_ssid = wpa_s->current_ssid;
2548         wpa_supplicant_mark_disassoc(wpa_s);
2549
2550         if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2551                 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2552                 wpa_s->current_ssid = last_ssid;
2553         }
2554
2555         if (fast_reconnect &&
2556             !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2557             !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2558             !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2559                              fast_reconnect->ssid_len) &&
2560             !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) &&
2561             !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) {
2562 #ifndef CONFIG_NO_SCAN_PROCESSING
2563                 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2564                 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2565                                            fast_reconnect_ssid) < 0) {
2566                         /* Recover through full scan */
2567                         wpa_supplicant_req_scan(wpa_s, 0, 100000);
2568                 }
2569 #endif /* CONFIG_NO_SCAN_PROCESSING */
2570         } else if (fast_reconnect) {
2571                 /*
2572                  * Could not reconnect to the same BSS due to network being
2573                  * disabled. Use a new scan to match the alternative behavior
2574                  * above, i.e., to continue automatic reconnection attempt in a
2575                  * way that enforces disabled network rules.
2576                  */
2577                 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2578         }
2579 }
2580
2581
2582 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2583 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
2584 {
2585         struct wpa_supplicant *wpa_s = eloop_ctx;
2586
2587         if (!wpa_s->pending_mic_error_report)
2588                 return;
2589
2590         wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2591         wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2592         wpa_s->pending_mic_error_report = 0;
2593 }
2594 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2595
2596
2597 static void
2598 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2599                                          union wpa_event_data *data)
2600 {
2601         int pairwise;
2602         struct os_reltime t;
2603
2604         wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2605         pairwise = (data && data->michael_mic_failure.unicast);
2606         os_get_reltime(&t);
2607         if ((wpa_s->last_michael_mic_error.sec &&
2608              !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
2609             wpa_s->pending_mic_error_report) {
2610                 if (wpa_s->pending_mic_error_report) {
2611                         /*
2612                          * Send the pending MIC error report immediately since
2613                          * we are going to start countermeasures and AP better
2614                          * do the same.
2615                          */
2616                         wpa_sm_key_request(wpa_s->wpa, 1,
2617                                            wpa_s->pending_mic_error_pairwise);
2618                 }
2619
2620                 /* Send the new MIC error report immediately since we are going
2621                  * to start countermeasures and AP better do the same.
2622                  */
2623                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2624
2625                 /* initialize countermeasures */
2626                 wpa_s->countermeasures = 1;
2627
2628                 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2629
2630                 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2631
2632                 /*
2633                  * Need to wait for completion of request frame. We do not get
2634                  * any callback for the message completion, so just wait a
2635                  * short while and hope for the best. */
2636                 os_sleep(0, 10000);
2637
2638                 wpa_drv_set_countermeasures(wpa_s, 1);
2639                 wpa_supplicant_deauthenticate(wpa_s,
2640                                               WLAN_REASON_MICHAEL_MIC_FAILURE);
2641                 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2642                                      wpa_s, NULL);
2643                 eloop_register_timeout(60, 0,
2644                                        wpa_supplicant_stop_countermeasures,
2645                                        wpa_s, NULL);
2646                 /* TODO: mark the AP rejected for 60 second. STA is
2647                  * allowed to associate with another AP.. */
2648         } else {
2649 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2650                 if (wpa_s->mic_errors_seen) {
2651                         /*
2652                          * Reduce the effectiveness of Michael MIC error
2653                          * reports as a means for attacking against TKIP if
2654                          * more than one MIC failure is noticed with the same
2655                          * PTK. We delay the transmission of the reports by a
2656                          * random time between 0 and 60 seconds in order to
2657                          * force the attacker wait 60 seconds before getting
2658                          * the information on whether a frame resulted in a MIC
2659                          * failure.
2660                          */
2661                         u8 rval[4];
2662                         int sec;
2663
2664                         if (os_get_random(rval, sizeof(rval)) < 0)
2665                                 sec = os_random() % 60;
2666                         else
2667                                 sec = WPA_GET_BE32(rval) % 60;
2668                         wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2669                                 "report %d seconds", sec);
2670                         wpa_s->pending_mic_error_report = 1;
2671                         wpa_s->pending_mic_error_pairwise = pairwise;
2672                         eloop_cancel_timeout(
2673                                 wpa_supplicant_delayed_mic_error_report,
2674                                 wpa_s, NULL);
2675                         eloop_register_timeout(
2676                                 sec, os_random() % 1000000,
2677                                 wpa_supplicant_delayed_mic_error_report,
2678                                 wpa_s, NULL);
2679                 } else {
2680                         wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2681                 }
2682 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2683                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2684 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2685         }
2686         wpa_s->last_michael_mic_error = t;
2687         wpa_s->mic_errors_seen++;
2688 }
2689
2690
2691 #ifdef CONFIG_TERMINATE_ONLASTIF
2692 static int any_interfaces(struct wpa_supplicant *head)
2693 {
2694         struct wpa_supplicant *wpa_s;
2695
2696         for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2697                 if (!wpa_s->interface_removed)
2698                         return 1;
2699         return 0;
2700 }
2701 #endif /* CONFIG_TERMINATE_ONLASTIF */
2702
2703
2704 static void
2705 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2706                                       union wpa_event_data *data)
2707 {
2708         if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2709                 return;
2710
2711         switch (data->interface_status.ievent) {
2712         case EVENT_INTERFACE_ADDED:
2713                 if (!wpa_s->interface_removed)
2714                         break;
2715                 wpa_s->interface_removed = 0;
2716                 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2717                 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2718                         wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2719                                 "driver after interface was added");
2720                 }
2721
2722 #ifdef CONFIG_P2P
2723                 if (!wpa_s->global->p2p &&
2724                     !wpa_s->global->p2p_disabled &&
2725                     !wpa_s->conf->p2p_disabled &&
2726                     (wpa_s->drv_flags &
2727                      WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) &&
2728                     wpas_p2p_add_p2pdev_interface(
2729                             wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) {
2730                         wpa_printf(MSG_INFO,
2731                                    "P2P: Failed to enable P2P Device interface");
2732                         /* Try to continue without. P2P will be disabled. */
2733                 }
2734 #endif /* CONFIG_P2P */
2735
2736                 break;
2737         case EVENT_INTERFACE_REMOVED:
2738                 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2739                 wpa_s->interface_removed = 1;
2740                 wpa_supplicant_mark_disassoc(wpa_s);
2741                 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2742                 l2_packet_deinit(wpa_s->l2);
2743                 wpa_s->l2 = NULL;
2744
2745 #ifdef CONFIG_P2P
2746                 if (wpa_s->global->p2p &&
2747                     wpa_s->global->p2p_init_wpa_s->parent == wpa_s &&
2748                     (wpa_s->drv_flags &
2749                      WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) {
2750                         wpa_dbg(wpa_s, MSG_DEBUG,
2751                                 "Removing P2P Device interface");
2752                         wpa_supplicant_remove_iface(
2753                                 wpa_s->global, wpa_s->global->p2p_init_wpa_s,
2754                                 0);
2755                         wpa_s->global->p2p_init_wpa_s = NULL;
2756                 }
2757 #endif /* CONFIG_P2P */
2758
2759 #ifdef CONFIG_TERMINATE_ONLASTIF
2760                 /* check if last interface */
2761                 if (!any_interfaces(wpa_s->global->ifaces))
2762                         eloop_terminate();
2763 #endif /* CONFIG_TERMINATE_ONLASTIF */
2764                 break;
2765         }
2766 }
2767
2768
2769 #ifdef CONFIG_PEERKEY
2770 static void
2771 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2772                               union wpa_event_data *data)
2773 {
2774         if (data == NULL)
2775                 return;
2776         wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2777 }
2778 #endif /* CONFIG_PEERKEY */
2779
2780
2781 #ifdef CONFIG_TDLS
2782 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2783                                       union wpa_event_data *data)
2784 {
2785         if (data == NULL)
2786                 return;
2787         switch (data->tdls.oper) {
2788         case TDLS_REQUEST_SETUP:
2789                 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2790                 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2791                         wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2792                 else
2793                         wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2794                 break;
2795         case TDLS_REQUEST_TEARDOWN:
2796                 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2797                         wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2798                                                data->tdls.reason_code);
2799                 else
2800                         wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2801                                           data->tdls.peer);
2802                 break;
2803         case TDLS_REQUEST_DISCOVER:
2804                         wpa_tdls_send_discovery_request(wpa_s->wpa,
2805                                                         data->tdls.peer);
2806                 break;
2807         }
2808 }
2809 #endif /* CONFIG_TDLS */
2810
2811
2812 #ifdef CONFIG_WNM
2813 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2814                                      union wpa_event_data *data)
2815 {
2816         if (data == NULL)
2817                 return;
2818         switch (data->wnm.oper) {
2819         case WNM_OPER_SLEEP:
2820                 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2821                            "(action=%d, intval=%d)",
2822                            data->wnm.sleep_action, data->wnm.sleep_intval);
2823                 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2824                                              data->wnm.sleep_intval, NULL);
2825                 break;
2826         }
2827 }
2828 #endif /* CONFIG_WNM */
2829
2830
2831 #ifdef CONFIG_IEEE80211R
2832 static void
2833 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2834                                  union wpa_event_data *data)
2835 {
2836         if (data == NULL)
2837                 return;
2838
2839         if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2840                                     data->ft_ies.ies_len,
2841                                     data->ft_ies.ft_action,
2842                                     data->ft_ies.target_ap,
2843                                     data->ft_ies.ric_ies,
2844                                     data->ft_ies.ric_ies_len) < 0) {
2845                 /* TODO: prevent MLME/driver from trying to associate? */
2846         }
2847 }
2848 #endif /* CONFIG_IEEE80211R */
2849
2850
2851 #ifdef CONFIG_IBSS_RSN
2852 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2853                                                 union wpa_event_data *data)
2854 {
2855         struct wpa_ssid *ssid;
2856         if (wpa_s->wpa_state < WPA_ASSOCIATED)
2857                 return;
2858         if (data == NULL)
2859                 return;
2860         ssid = wpa_s->current_ssid;
2861         if (ssid == NULL)
2862                 return;
2863         if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2864                 return;
2865
2866         ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2867 }
2868
2869
2870 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2871                                            union wpa_event_data *data)
2872 {
2873         struct wpa_ssid *ssid = wpa_s->current_ssid;
2874
2875         if (ssid == NULL)
2876                 return;
2877
2878         /* check if the ssid is correctly configured as IBSS/RSN */
2879         if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2880                 return;
2881
2882         ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2883                              data->rx_mgmt.frame_len);
2884 }
2885 #endif /* CONFIG_IBSS_RSN */
2886
2887
2888 #ifdef CONFIG_IEEE80211R
2889 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2890                          size_t len)
2891 {
2892         const u8 *sta_addr, *target_ap_addr;
2893         u16 status;
2894
2895         wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2896         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2897                 return; /* only SME case supported for now */
2898         if (len < 1 + 2 * ETH_ALEN + 2)
2899                 return;
2900         if (data[0] != 2)
2901                 return; /* Only FT Action Response is supported for now */
2902         sta_addr = data + 1;
2903         target_ap_addr = data + 1 + ETH_ALEN;
2904         status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2905         wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2906                 MACSTR " TargetAP " MACSTR " status %u",
2907                 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2908
2909         if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2910                 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2911                         " in FT Action Response", MAC2STR(sta_addr));
2912                 return;
2913         }
2914
2915         if (status) {
2916                 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2917                         "failure (status code %d)", status);
2918                 /* TODO: report error to FT code(?) */
2919                 return;
2920         }
2921
2922         if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2923                                     len - (1 + 2 * ETH_ALEN + 2), 1,
2924                                     target_ap_addr, NULL, 0) < 0)
2925                 return;
2926
2927 #ifdef CONFIG_SME
2928         {
2929                 struct wpa_bss *bss;
2930                 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2931                 if (bss)
2932                         wpa_s->sme.freq = bss->freq;
2933                 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2934                 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2935                               WLAN_AUTH_FT);
2936         }
2937 #endif /* CONFIG_SME */
2938 }
2939 #endif /* CONFIG_IEEE80211R */
2940
2941
2942 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2943                                                struct unprot_deauth *e)
2944 {
2945 #ifdef CONFIG_IEEE80211W
2946         wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2947                    "dropped: " MACSTR " -> " MACSTR
2948                    " (reason code %u)",
2949                    MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2950         sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2951 #endif /* CONFIG_IEEE80211W */
2952 }
2953
2954
2955 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2956                                                  struct unprot_disassoc *e)
2957 {
2958 #ifdef CONFIG_IEEE80211W
2959         wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2960                    "dropped: " MACSTR " -> " MACSTR
2961                    " (reason code %u)",
2962                    MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2963         sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2964 #endif /* CONFIG_IEEE80211W */
2965 }
2966
2967
2968 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
2969                                   u16 reason_code, int locally_generated,
2970                                   const u8 *ie, size_t ie_len, int deauth)
2971 {
2972 #ifdef CONFIG_AP
2973         if (wpa_s->ap_iface && addr) {
2974                 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
2975                 return;
2976         }
2977
2978         if (wpa_s->ap_iface) {
2979                 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
2980                 return;
2981         }
2982 #endif /* CONFIG_AP */
2983
2984         if (!locally_generated)
2985                 wpa_s->own_disconnect_req = 0;
2986
2987         wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
2988
2989         if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
2990               ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
2991                 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
2992                eapol_sm_failed(wpa_s->eapol))) &&
2993              !wpa_s->eap_expected_failure))
2994                 wpas_auth_failed(wpa_s, "AUTH_FAILED");
2995
2996 #ifdef CONFIG_P2P
2997         if (deauth && reason_code > 0) {
2998                 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
2999                                           locally_generated) > 0) {
3000                         /*
3001                          * The interface was removed, so cannot continue
3002                          * processing any additional operations after this.
3003                          */
3004                         return;
3005                 }
3006         }
3007 #endif /* CONFIG_P2P */
3008
3009         wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
3010                                              locally_generated);
3011 }
3012
3013
3014 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
3015                                 struct disassoc_info *info)
3016 {
3017         u16 reason_code = 0;
3018         int locally_generated = 0;
3019         const u8 *addr = NULL;
3020         const u8 *ie = NULL;
3021         size_t ie_len = 0;
3022
3023         wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
3024
3025         if (info) {
3026                 addr = info->addr;
3027                 ie = info->ie;
3028                 ie_len = info->ie_len;
3029                 reason_code = info->reason_code;
3030                 locally_generated = info->locally_generated;
3031                 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
3032                         locally_generated ? " (locally generated)" : "");
3033                 if (addr)
3034                         wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3035                                 MAC2STR(addr));
3036                 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
3037                             ie, ie_len);
3038         }
3039
3040 #ifdef CONFIG_AP
3041         if (wpa_s->ap_iface && info && info->addr) {
3042                 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
3043                 return;
3044         }
3045
3046         if (wpa_s->ap_iface) {
3047                 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
3048                 return;
3049         }
3050 #endif /* CONFIG_AP */
3051
3052 #ifdef CONFIG_P2P
3053         if (info) {
3054                 wpas_p2p_disassoc_notif(
3055                         wpa_s, info->addr, reason_code, info->ie, info->ie_len,
3056                         locally_generated);
3057         }
3058 #endif /* CONFIG_P2P */
3059
3060         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3061                 sme_event_disassoc(wpa_s, info);
3062
3063         wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
3064                               ie, ie_len, 0);
3065 }
3066
3067
3068 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
3069                               struct deauth_info *info)
3070 {
3071         u16 reason_code = 0;
3072         int locally_generated = 0;
3073         const u8 *addr = NULL;
3074         const u8 *ie = NULL;
3075         size_t ie_len = 0;
3076
3077         wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
3078
3079         if (info) {
3080                 addr = info->addr;
3081                 ie = info->ie;
3082                 ie_len = info->ie_len;
3083                 reason_code = info->reason_code;
3084                 locally_generated = info->locally_generated;
3085                 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
3086                         reason_code,
3087                         locally_generated ? " (locally generated)" : "");
3088                 if (addr) {
3089                         wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
3090                                 MAC2STR(addr));
3091                 }
3092                 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
3093                             ie, ie_len);
3094         }
3095
3096         wpa_reset_ft_completed(wpa_s->wpa);
3097
3098         wpas_event_disconnect(wpa_s, addr, reason_code,
3099                               locally_generated, ie, ie_len, 1);
3100 }
3101
3102
3103 static const char * reg_init_str(enum reg_change_initiator init)
3104 {
3105         switch (init) {
3106         case REGDOM_SET_BY_CORE:
3107                 return "CORE";
3108         case REGDOM_SET_BY_USER:
3109                 return "USER";
3110         case REGDOM_SET_BY_DRIVER:
3111                 return "DRIVER";
3112         case REGDOM_SET_BY_COUNTRY_IE:
3113                 return "COUNTRY_IE";
3114         case REGDOM_BEACON_HINT:
3115                 return "BEACON_HINT";
3116         }
3117         return "?";
3118 }
3119
3120
3121 static const char * reg_type_str(enum reg_type type)
3122 {
3123         switch (type) {
3124         case REGDOM_TYPE_UNKNOWN:
3125                 return "UNKNOWN";
3126         case REGDOM_TYPE_COUNTRY:
3127                 return "COUNTRY";
3128         case REGDOM_TYPE_WORLD:
3129                 return "WORLD";
3130         case REGDOM_TYPE_CUSTOM_WORLD:
3131                 return "CUSTOM_WORLD";
3132         case REGDOM_TYPE_INTERSECTION:
3133                 return "INTERSECTION";
3134         }
3135         return "?";
3136 }
3137
3138
3139 static void wpa_supplicant_update_channel_list(
3140         struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
3141 {
3142         struct wpa_supplicant *ifs;
3143
3144         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
3145                 reg_init_str(info->initiator), reg_type_str(info->type),
3146                 info->alpha2[0] ? " alpha2=" : "",
3147                 info->alpha2[0] ? info->alpha2 : "");
3148
3149         if (wpa_s->drv_priv == NULL)
3150                 return; /* Ignore event during drv initialization */
3151
3152         dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
3153                          radio_list) {
3154                 wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
3155                            ifs->ifname);
3156                 free_hw_features(ifs);
3157                 ifs->hw.modes = wpa_drv_get_hw_feature_data(
3158                         ifs, &ifs->hw.num_modes, &ifs->hw.flags);
3159         }
3160
3161         /* Restart sched_scan with updated channel list */
3162         if (wpa_s->sched_scanning) {
3163                 wpa_dbg(wpa_s, MSG_DEBUG,
3164                         "Channel list changed restart sched scan.");
3165                 wpa_supplicant_cancel_sched_scan(wpa_s);
3166                 wpa_supplicant_req_scan(wpa_s, 0, 0);
3167         }
3168
3169         wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER);
3170 }
3171
3172
3173 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
3174                                       const u8 *frame, size_t len, int freq,
3175                                       int rssi)
3176 {
3177         const struct ieee80211_mgmt *mgmt;
3178         const u8 *payload;
3179         size_t plen;
3180         u8 category;
3181
3182         if (len < IEEE80211_HDRLEN + 2)
3183                 return;
3184
3185         mgmt = (const struct ieee80211_mgmt *) frame;
3186         payload = frame + IEEE80211_HDRLEN;
3187         category = *payload++;
3188         plen = len - IEEE80211_HDRLEN - 1;
3189
3190         wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
3191                 " Category=%u DataLen=%d freq=%d MHz",
3192                 MAC2STR(mgmt->sa), category, (int) plen, freq);
3193
3194         if (category == WLAN_ACTION_WMM) {
3195                 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
3196                 return;
3197         }
3198
3199 #ifdef CONFIG_IEEE80211R
3200         if (category == WLAN_ACTION_FT) {
3201                 ft_rx_action(wpa_s, payload, plen);
3202                 return;
3203         }
3204 #endif /* CONFIG_IEEE80211R */
3205
3206 #ifdef CONFIG_IEEE80211W
3207 #ifdef CONFIG_SME
3208         if (category == WLAN_ACTION_SA_QUERY) {
3209                 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
3210                 return;
3211         }
3212 #endif /* CONFIG_SME */
3213 #endif /* CONFIG_IEEE80211W */
3214
3215 #ifdef CONFIG_WNM
3216         if (mgmt->u.action.category == WLAN_ACTION_WNM) {
3217                 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
3218                 return;
3219         }
3220 #endif /* CONFIG_WNM */
3221
3222 #ifdef CONFIG_GAS
3223         if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
3224              mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
3225             gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
3226                          mgmt->u.action.category,
3227                          payload, plen, freq) == 0)
3228                 return;
3229 #endif /* CONFIG_GAS */
3230
3231 #ifdef CONFIG_TDLS
3232         if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
3233             payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
3234                 wpa_dbg(wpa_s, MSG_DEBUG,
3235                         "TDLS: Received Discovery Response from " MACSTR,
3236                         MAC2STR(mgmt->sa));
3237                 return;
3238         }
3239 #endif /* CONFIG_TDLS */
3240
3241 #ifdef CONFIG_INTERWORKING
3242         if (category == WLAN_ACTION_QOS && plen >= 1 &&
3243             payload[0] == QOS_QOS_MAP_CONFIG) {
3244                 const u8 *pos = payload + 1;
3245                 size_t qlen = plen - 1;
3246                 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
3247                         MACSTR, MAC2STR(mgmt->sa));
3248                 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
3249                     qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
3250                     pos[1] <= qlen - 2 && pos[1] >= 16)
3251                         wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
3252                 return;
3253         }
3254 #endif /* CONFIG_INTERWORKING */
3255
3256         if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3257             payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
3258                 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
3259                 return;
3260         }
3261
3262         if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
3263             payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
3264                 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
3265                                                          payload + 1, plen - 1,
3266                                                          rssi);
3267                 return;
3268         }
3269
3270 #ifdef CONFIG_FST
3271         if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) {
3272                 fst_rx_action(wpa_s->fst, mgmt, len);
3273                 return;
3274         }
3275 #endif /* CONFIG_FST */
3276
3277         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
3278                            category, payload, plen, freq);
3279         if (wpa_s->ifmsh)
3280                 mesh_mpm_action_rx(wpa_s, mgmt, len);
3281 }
3282
3283
3284 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
3285                                              union wpa_event_data *event)
3286 {
3287         struct wpa_freq_range_list *list;
3288         char *str = NULL;
3289
3290         list = &event->freq_range;
3291
3292         if (list->num)
3293                 str = freq_range_list_str(list);
3294         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
3295                 str ? str : "");
3296
3297 #ifdef CONFIG_P2P
3298         if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
3299                 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
3300                         __func__);
3301         } else {
3302                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
3303
3304                 /*
3305                  * The update channel flow will also take care of moving a GO
3306                  * from the unsafe frequency if needed.
3307                  */
3308                 wpas_p2p_update_channel_list(wpa_s,
3309                                              WPAS_P2P_CHANNEL_UPDATE_AVOID);
3310         }
3311 #endif /* CONFIG_P2P */
3312
3313         os_free(str);
3314 }
3315
3316
3317 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
3318                                             union wpa_event_data *data)
3319 {
3320         wpa_dbg(wpa_s, MSG_DEBUG,
3321                 "Connection authorized by device, previous state %d",
3322                 wpa_s->wpa_state);
3323         if (wpa_s->wpa_state == WPA_ASSOCIATED) {
3324                 wpa_supplicant_cancel_auth_timeout(wpa_s);
3325                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
3326                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
3327                 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
3328         }
3329         wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
3330         wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
3331                                data->assoc_info.ptk_kck_len,
3332                                data->assoc_info.ptk_kek,
3333                                data->assoc_info.ptk_kek_len);
3334 }
3335
3336
3337 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
3338                           union wpa_event_data *data)
3339 {
3340         struct wpa_supplicant *wpa_s = ctx;
3341         int resched;
3342
3343         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
3344             event != EVENT_INTERFACE_ENABLED &&
3345             event != EVENT_INTERFACE_STATUS &&
3346             event != EVENT_SCHED_SCAN_STOPPED) {
3347                 wpa_dbg(wpa_s, MSG_DEBUG,
3348                         "Ignore event %s (%d) while interface is disabled",
3349                         event_to_string(event), event);
3350                 return;
3351         }
3352
3353 #ifndef CONFIG_NO_STDOUT_DEBUG
3354 {
3355         int level = MSG_DEBUG;
3356
3357         if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
3358                 const struct ieee80211_hdr *hdr;
3359                 u16 fc;
3360                 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
3361                 fc = le_to_host16(hdr->frame_control);
3362                 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3363                     WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
3364                         level = MSG_EXCESSIVE;
3365         }
3366
3367         wpa_dbg(wpa_s, level, "Event %s (%d) received",
3368                 event_to_string(event), event);
3369 }
3370 #endif /* CONFIG_NO_STDOUT_DEBUG */
3371
3372         switch (event) {
3373         case EVENT_AUTH:
3374 #ifdef CONFIG_FST
3375                 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies,
3376                                           data->auth.ies_len))
3377                         wpa_printf(MSG_DEBUG,
3378                                    "FST: MB IEs updated from auth IE");
3379 #endif /* CONFIG_FST */
3380                 sme_event_auth(wpa_s, data);
3381                 break;
3382         case EVENT_ASSOC:
3383                 wpa_supplicant_event_assoc(wpa_s, data);
3384                 if (data && data->assoc_info.authorized)
3385                         wpa_supplicant_event_assoc_auth(wpa_s, data);
3386                 if (data) {
3387                         wpa_msg(wpa_s, MSG_INFO,
3388                                 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u",
3389                                 data->assoc_info.subnet_status);
3390                 }
3391                 break;
3392         case EVENT_DISASSOC:
3393                 wpas_event_disassoc(wpa_s,
3394                                     data ? &data->disassoc_info : NULL);
3395                 break;
3396         case EVENT_DEAUTH:
3397                 wpas_event_deauth(wpa_s,
3398                                   data ? &data->deauth_info : NULL);
3399                 break;
3400         case EVENT_MICHAEL_MIC_FAILURE:
3401                 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3402                 break;
3403 #ifndef CONFIG_NO_SCAN_PROCESSING
3404         case EVENT_SCAN_STARTED:
3405                 if (wpa_s->own_scan_requested ||
3406                     (data && !data->scan_info.external_scan)) {
3407                         struct os_reltime diff;
3408
3409                         os_get_reltime(&wpa_s->scan_start_time);
3410                         os_reltime_sub(&wpa_s->scan_start_time,
3411                                        &wpa_s->scan_trigger_time, &diff);
3412                         wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3413                                 diff.sec, diff.usec);
3414                         wpa_s->own_scan_requested = 0;
3415                         wpa_s->own_scan_running = 1;
3416                         if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3417                             wpa_s->manual_scan_use_id) {
3418                                 wpa_msg_ctrl(wpa_s, MSG_INFO,
3419                                              WPA_EVENT_SCAN_STARTED "id=%u",
3420                                              wpa_s->manual_scan_id);
3421                         } else {
3422                                 wpa_msg_ctrl(wpa_s, MSG_INFO,
3423                                              WPA_EVENT_SCAN_STARTED);
3424                         }
3425                 } else {
3426                         wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3427                         wpa_s->radio->external_scan_running = 1;
3428                         wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
3429                 }
3430                 break;
3431         case EVENT_SCAN_RESULTS:
3432                 if (!(data && data->scan_info.external_scan) &&
3433                     os_reltime_initialized(&wpa_s->scan_start_time)) {
3434                         struct os_reltime now, diff;
3435                         os_get_reltime(&now);
3436                         os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3437                         wpa_s->scan_start_time.sec = 0;
3438                         wpa_s->scan_start_time.usec = 0;
3439                         wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3440                                 diff.sec, diff.usec);
3441                 }
3442                 if (wpa_supplicant_event_scan_results(wpa_s, data))
3443                         break; /* interface may have been removed */
3444                 if (!(data && data->scan_info.external_scan))
3445                         wpa_s->own_scan_running = 0;
3446                 if (data && data->scan_info.nl_scan_event)
3447                         wpa_s->radio->external_scan_running = 0;
3448                 radio_work_check_next(wpa_s);
3449                 break;
3450 #endif /* CONFIG_NO_SCAN_PROCESSING */
3451         case EVENT_ASSOCINFO:
3452                 wpa_supplicant_event_associnfo(wpa_s, data);
3453                 break;
3454         case EVENT_INTERFACE_STATUS:
3455                 wpa_supplicant_event_interface_status(wpa_s, data);
3456                 break;
3457         case EVENT_PMKID_CANDIDATE:
3458                 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3459                 break;
3460 #ifdef CONFIG_PEERKEY
3461         case EVENT_STKSTART:
3462                 wpa_supplicant_event_stkstart(wpa_s, data);
3463                 break;
3464 #endif /* CONFIG_PEERKEY */
3465 #ifdef CONFIG_TDLS
3466         case EVENT_TDLS:
3467                 wpa_supplicant_event_tdls(wpa_s, data);
3468                 break;
3469 #endif /* CONFIG_TDLS */
3470 #ifdef CONFIG_WNM
3471         case EVENT_WNM:
3472                 wpa_supplicant_event_wnm(wpa_s, data);
3473                 break;
3474 #endif /* CONFIG_WNM */
3475 #ifdef CONFIG_IEEE80211R
3476         case EVENT_FT_RESPONSE:
3477                 wpa_supplicant_event_ft_response(wpa_s, data);
3478                 break;
3479 #endif /* CONFIG_IEEE80211R */
3480 #ifdef CONFIG_IBSS_RSN
3481         case EVENT_IBSS_RSN_START:
3482                 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3483                 break;
3484 #endif /* CONFIG_IBSS_RSN */
3485         case EVENT_ASSOC_REJECT:
3486                 if (data->assoc_reject.bssid)
3487                         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3488                                 "bssid=" MACSTR " status_code=%u",
3489                                 MAC2STR(data->assoc_reject.bssid),
3490                                 data->assoc_reject.status_code);
3491                 else
3492                         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3493                                 "status_code=%u",
3494                                 data->assoc_reject.status_code);
3495                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3496                         sme_event_assoc_reject(wpa_s, data);
3497                 else {
3498                         const u8 *bssid = data->assoc_reject.bssid;
3499                         if (bssid == NULL || is_zero_ether_addr(bssid))
3500                                 bssid = wpa_s->pending_bssid;
3501                         wpas_connection_failed(wpa_s, bssid);
3502                         wpa_supplicant_mark_disassoc(wpa_s);
3503                 }
3504                 break;
3505         case EVENT_AUTH_TIMED_OUT:
3506                 /* It is possible to get this event from earlier connection */
3507                 if (wpa_s->current_ssid &&
3508                     wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3509                         wpa_dbg(wpa_s, MSG_DEBUG,
3510                                 "Ignore AUTH_TIMED_OUT in mesh configuration");
3511                         break;
3512                 }
3513                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3514                         sme_event_auth_timed_out(wpa_s, data);
3515                 break;
3516         case EVENT_ASSOC_TIMED_OUT:
3517                 /* It is possible to get this event from earlier connection */
3518                 if (wpa_s->current_ssid &&
3519                     wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3520                         wpa_dbg(wpa_s, MSG_DEBUG,
3521                                 "Ignore ASSOC_TIMED_OUT in mesh configuration");
3522                         break;
3523                 }
3524                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3525                         sme_event_assoc_timed_out(wpa_s, data);
3526                 break;
3527         case EVENT_TX_STATUS:
3528                 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3529                         " type=%d stype=%d",
3530                         MAC2STR(data->tx_status.dst),
3531                         data->tx_status.type, data->tx_status.stype);
3532 #ifdef CONFIG_AP
3533                 if (wpa_s->ap_iface == NULL) {
3534 #ifdef CONFIG_OFFCHANNEL
3535                         if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3536                             data->tx_status.stype == WLAN_FC_STYPE_ACTION)
3537                                 offchannel_send_action_tx_status(
3538                                         wpa_s, data->tx_status.dst,
3539                                         data->tx_status.data,
3540                                         data->tx_status.data_len,
3541                                         data->tx_status.ack ?
3542                                         OFFCHANNEL_SEND_ACTION_SUCCESS :
3543                                         OFFCHANNEL_SEND_ACTION_NO_ACK);
3544 #endif /* CONFIG_OFFCHANNEL */
3545                         break;
3546                 }
3547 #endif /* CONFIG_AP */
3548 #ifdef CONFIG_OFFCHANNEL
3549                 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3550                         MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
3551                 /*
3552                  * Catch TX status events for Action frames we sent via group
3553                  * interface in GO mode.
3554                  */
3555                 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3556                     data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3557                     os_memcmp(wpa_s->parent->pending_action_dst,
3558                               data->tx_status.dst, ETH_ALEN) == 0) {
3559                         offchannel_send_action_tx_status(
3560                                 wpa_s->parent, data->tx_status.dst,
3561                                 data->tx_status.data,
3562                                 data->tx_status.data_len,
3563                                 data->tx_status.ack ?
3564                                 OFFCHANNEL_SEND_ACTION_SUCCESS :
3565                                 OFFCHANNEL_SEND_ACTION_NO_ACK);
3566                         break;
3567                 }
3568 #endif /* CONFIG_OFFCHANNEL */
3569 #ifdef CONFIG_AP
3570                 switch (data->tx_status.type) {
3571                 case WLAN_FC_TYPE_MGMT:
3572                         ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3573                                       data->tx_status.data_len,
3574                                       data->tx_status.stype,
3575                                       data->tx_status.ack);
3576                         break;
3577                 case WLAN_FC_TYPE_DATA:
3578                         ap_tx_status(wpa_s, data->tx_status.dst,
3579                                      data->tx_status.data,
3580                                      data->tx_status.data_len,
3581                                      data->tx_status.ack);
3582                         break;
3583                 }
3584 #endif /* CONFIG_AP */
3585                 break;
3586 #ifdef CONFIG_AP
3587         case EVENT_EAPOL_TX_STATUS:
3588                 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3589                                    data->eapol_tx_status.data,
3590                                    data->eapol_tx_status.data_len,
3591                                    data->eapol_tx_status.ack);
3592                 break;
3593         case EVENT_DRIVER_CLIENT_POLL_OK:
3594                 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3595                 break;
3596         case EVENT_RX_FROM_UNKNOWN:
3597                 if (wpa_s->ap_iface == NULL)
3598                         break;
3599                 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3600                                        data->rx_from_unknown.wds);
3601                 break;
3602         case EVENT_CH_SWITCH:
3603                 if (!data || !wpa_s->current_ssid)
3604                         break;
3605
3606                 wpa_s->assoc_freq = data->ch_switch.freq;
3607                 wpa_s->current_ssid->frequency = data->ch_switch.freq;
3608
3609                 if (wpa_s->current_ssid->mode == WPAS_MODE_AP ||
3610                     wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO ||
3611                     wpa_s->current_ssid->mode ==
3612                     WPAS_MODE_P2P_GROUP_FORMATION) {
3613                         wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3614                                           data->ch_switch.ht_enabled,
3615                                           data->ch_switch.ch_offset,
3616                                           data->ch_switch.ch_width,
3617                                           data->ch_switch.cf1,
3618                                           data->ch_switch.cf2);
3619                 }
3620
3621                 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS);
3622                 break;
3623 #ifdef NEED_AP_MLME
3624         case EVENT_DFS_RADAR_DETECTED:
3625                 if (data)
3626                         wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event);
3627                 break;
3628         case EVENT_DFS_CAC_STARTED:
3629                 if (data)
3630                         wpas_event_dfs_cac_started(wpa_s, &data->dfs_event);
3631                 break;
3632         case EVENT_DFS_CAC_FINISHED:
3633                 if (data)
3634                         wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event);
3635                 break;
3636         case EVENT_DFS_CAC_ABORTED:
3637                 if (data)
3638                         wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event);
3639                 break;
3640         case EVENT_DFS_NOP_FINISHED:
3641                 if (data)
3642                         wpas_event_dfs_cac_nop_finished(wpa_s,
3643                                                         &data->dfs_event);
3644                 break;
3645 #endif /* NEED_AP_MLME */
3646 #endif /* CONFIG_AP */
3647         case EVENT_RX_MGMT: {
3648                 u16 fc, stype;
3649                 const struct ieee80211_mgmt *mgmt;
3650
3651 #ifdef CONFIG_TESTING_OPTIONS
3652                 if (wpa_s->ext_mgmt_frame_handling) {
3653                         struct rx_mgmt *rx = &data->rx_mgmt;
3654                         size_t hex_len = 2 * rx->frame_len + 1;
3655                         char *hex = os_malloc(hex_len);
3656                         if (hex) {
3657                                 wpa_snprintf_hex(hex, hex_len,
3658                                                  rx->frame, rx->frame_len);
3659                                 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3660                                         rx->freq, rx->datarate, rx->ssi_signal,
3661                                         hex);
3662                                 os_free(hex);
3663                         }
3664                         break;
3665                 }
3666 #endif /* CONFIG_TESTING_OPTIONS */
3667
3668                 mgmt = (const struct ieee80211_mgmt *)
3669                         data->rx_mgmt.frame;
3670                 fc = le_to_host16(mgmt->frame_control);
3671                 stype = WLAN_FC_GET_STYPE(fc);
3672
3673 #ifdef CONFIG_AP
3674                 if (wpa_s->ap_iface == NULL) {
3675 #endif /* CONFIG_AP */
3676 #ifdef CONFIG_P2P
3677                         if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3678                             data->rx_mgmt.frame_len > 24) {
3679                                 const u8 *src = mgmt->sa;
3680                                 const u8 *ie = mgmt->u.probe_req.variable;
3681                                 size_t ie_len = data->rx_mgmt.frame_len -
3682                                         (mgmt->u.probe_req.variable -
3683                                          data->rx_mgmt.frame);
3684                                 wpas_p2p_probe_req_rx(
3685                                         wpa_s, src, mgmt->da,
3686                                         mgmt->bssid, ie, ie_len,
3687                                         data->rx_mgmt.freq,
3688                                         data->rx_mgmt.ssi_signal);
3689                                 break;
3690                         }
3691 #endif /* CONFIG_P2P */
3692 #ifdef CONFIG_IBSS_RSN
3693                         if (wpa_s->current_ssid &&
3694                             wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3695                             stype == WLAN_FC_STYPE_AUTH &&
3696                             data->rx_mgmt.frame_len >= 30) {
3697                                 wpa_supplicant_event_ibss_auth(wpa_s, data);
3698                                 break;
3699                         }
3700 #endif /* CONFIG_IBSS_RSN */
3701
3702                         if (stype == WLAN_FC_STYPE_ACTION) {
3703                                 wpas_event_rx_mgmt_action(
3704                                         wpa_s, data->rx_mgmt.frame,
3705                                         data->rx_mgmt.frame_len,
3706                                         data->rx_mgmt.freq,
3707                                         data->rx_mgmt.ssi_signal);
3708                                 break;
3709                         }
3710
3711                         if (wpa_s->ifmsh) {
3712                                 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3713                                 break;
3714                         }
3715
3716                         wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3717                                 "management frame in non-AP mode");
3718                         break;
3719 #ifdef CONFIG_AP
3720                 }
3721
3722                 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3723                     data->rx_mgmt.frame_len > 24) {
3724                         const u8 *ie = mgmt->u.probe_req.variable;
3725                         size_t ie_len = data->rx_mgmt.frame_len -
3726                                 (mgmt->u.probe_req.variable -
3727                                  data->rx_mgmt.frame);
3728
3729                         wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3730                                          mgmt->bssid, ie, ie_len,
3731                                          data->rx_mgmt.ssi_signal);
3732                 }
3733
3734                 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
3735 #endif /* CONFIG_AP */
3736                 break;
3737                 }
3738         case EVENT_RX_PROBE_REQ:
3739                 if (data->rx_probe_req.sa == NULL ||
3740                     data->rx_probe_req.ie == NULL)
3741                         break;
3742 #ifdef CONFIG_AP
3743                 if (wpa_s->ap_iface) {
3744                         hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3745                                              data->rx_probe_req.sa,
3746                                              data->rx_probe_req.da,
3747                                              data->rx_probe_req.bssid,
3748                                              data->rx_probe_req.ie,
3749                                              data->rx_probe_req.ie_len,
3750                                              data->rx_probe_req.ssi_signal);
3751                         break;
3752                 }
3753 #endif /* CONFIG_AP */
3754                 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
3755                                       data->rx_probe_req.da,
3756                                       data->rx_probe_req.bssid,
3757                                       data->rx_probe_req.ie,
3758                                       data->rx_probe_req.ie_len,
3759                                       0,
3760                                       data->rx_probe_req.ssi_signal);
3761                 break;
3762         case EVENT_REMAIN_ON_CHANNEL:
3763 #ifdef CONFIG_OFFCHANNEL
3764                 offchannel_remain_on_channel_cb(
3765                         wpa_s, data->remain_on_channel.freq,
3766                         data->remain_on_channel.duration);
3767 #endif /* CONFIG_OFFCHANNEL */
3768                 wpas_p2p_remain_on_channel_cb(
3769                         wpa_s, data->remain_on_channel.freq,
3770                         data->remain_on_channel.duration);
3771                 break;
3772         case EVENT_CANCEL_REMAIN_ON_CHANNEL:
3773 #ifdef CONFIG_OFFCHANNEL
3774                 offchannel_cancel_remain_on_channel_cb(
3775                         wpa_s, data->remain_on_channel.freq);
3776 #endif /* CONFIG_OFFCHANNEL */
3777                 wpas_p2p_cancel_remain_on_channel_cb(
3778                         wpa_s, data->remain_on_channel.freq);
3779                 break;
3780         case EVENT_EAPOL_RX:
3781                 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3782                                         data->eapol_rx.data,
3783                                         data->eapol_rx.data_len);
3784                 break;
3785         case EVENT_SIGNAL_CHANGE:
3786                 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3787                         "above=%d signal=%d noise=%d txrate=%d",
3788                         data->signal_change.above_threshold,
3789                         data->signal_change.current_signal,
3790                         data->signal_change.current_noise,
3791                         data->signal_change.current_txrate);
3792                 wpa_bss_update_level(wpa_s->current_bss,
3793                                      data->signal_change.current_signal);
3794                 bgscan_notify_signal_change(
3795                         wpa_s, data->signal_change.above_threshold,
3796                         data->signal_change.current_signal,
3797                         data->signal_change.current_noise,
3798                         data->signal_change.current_txrate);
3799                 break;
3800         case EVENT_INTERFACE_ENABLED:
3801                 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
3802                 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3803                         wpa_supplicant_update_mac_addr(wpa_s);
3804                         if (wpa_s->p2p_mgmt) {
3805                                 wpa_supplicant_set_state(wpa_s,
3806                                                          WPA_DISCONNECTED);
3807                                 break;
3808                         }
3809
3810 #ifdef CONFIG_AP
3811                         if (!wpa_s->ap_iface) {
3812                                 wpa_supplicant_set_state(wpa_s,
3813                                                          WPA_DISCONNECTED);
3814                                 wpa_s->scan_req = NORMAL_SCAN_REQ;
3815                                 wpa_supplicant_req_scan(wpa_s, 0, 0);
3816                         } else
3817                                 wpa_supplicant_set_state(wpa_s,
3818                                                          WPA_COMPLETED);
3819 #else /* CONFIG_AP */
3820                         wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3821                         wpa_supplicant_req_scan(wpa_s, 0, 0);
3822 #endif /* CONFIG_AP */
3823                 }
3824                 break;
3825         case EVENT_INTERFACE_DISABLED:
3826                 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
3827 #ifdef CONFIG_P2P
3828                 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3829                     (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3830                      wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
3831                         /*
3832                          * Mark interface disabled if this happens to end up not
3833                          * being removed as a separate P2P group interface.
3834                          */
3835                         wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3836                         /*
3837                          * The interface was externally disabled. Remove
3838                          * it assuming an external entity will start a
3839                          * new session if needed.
3840                          */
3841                         if (wpa_s->current_ssid &&
3842                             wpa_s->current_ssid->p2p_group)
3843                                 wpas_p2p_interface_unavailable(wpa_s);
3844                         else
3845                                 wpas_p2p_disconnect(wpa_s);
3846                         /*
3847                          * wpa_s instance may have been freed, so must not use
3848                          * it here anymore.
3849                          */
3850                         break;
3851                 }
3852                 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3853                     p2p_in_progress(wpa_s->global->p2p) > 1) {
3854                         /* This radio work will be cancelled, so clear P2P
3855                          * state as well.
3856                          */
3857                         p2p_stop_find(wpa_s->global->p2p);
3858                 }
3859 #endif /* CONFIG_P2P */
3860
3861                 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3862                         /*
3863                          * Indicate disconnection to keep ctrl_iface events
3864                          * consistent.
3865                          */
3866                         wpa_supplicant_event_disassoc(
3867                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3868                 }
3869                 wpa_supplicant_mark_disassoc(wpa_s);
3870                 radio_remove_works(wpa_s, NULL, 0);
3871
3872                 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3873                 break;
3874         case EVENT_CHANNEL_LIST_CHANGED:
3875                 wpa_supplicant_update_channel_list(
3876                         wpa_s, &data->channel_list_changed);
3877                 break;
3878         case EVENT_INTERFACE_UNAVAILABLE:
3879                 wpas_p2p_interface_unavailable(wpa_s);
3880                 break;
3881         case EVENT_BEST_CHANNEL:
3882                 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3883                         "(%d %d %d)",
3884                         data->best_chan.freq_24, data->best_chan.freq_5,
3885                         data->best_chan.freq_overall);
3886                 wpa_s->best_24_freq = data->best_chan.freq_24;
3887                 wpa_s->best_5_freq = data->best_chan.freq_5;
3888                 wpa_s->best_overall_freq = data->best_chan.freq_overall;
3889                 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3890                                               data->best_chan.freq_5,
3891                                               data->best_chan.freq_overall);
3892                 break;
3893         case EVENT_UNPROT_DEAUTH:
3894                 wpa_supplicant_event_unprot_deauth(wpa_s,
3895                                                    &data->unprot_deauth);
3896                 break;
3897         case EVENT_UNPROT_DISASSOC:
3898                 wpa_supplicant_event_unprot_disassoc(wpa_s,
3899                                                      &data->unprot_disassoc);
3900                 break;
3901         case EVENT_STATION_LOW_ACK:
3902 #ifdef CONFIG_AP
3903                 if (wpa_s->ap_iface && data)
3904                         hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3905                                                   data->low_ack.addr);
3906 #endif /* CONFIG_AP */
3907 #ifdef CONFIG_TDLS
3908                 if (data)
3909                         wpa_tdls_disable_unreachable_link(wpa_s->wpa,
3910                                                           data->low_ack.addr);
3911 #endif /* CONFIG_TDLS */
3912                 break;
3913         case EVENT_IBSS_PEER_LOST:
3914 #ifdef CONFIG_IBSS_RSN
3915                 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
3916 #endif /* CONFIG_IBSS_RSN */
3917                 break;
3918         case EVENT_DRIVER_GTK_REKEY:
3919                 if (os_memcmp(data->driver_gtk_rekey.bssid,
3920                               wpa_s->bssid, ETH_ALEN))
3921                         break;
3922                 if (!wpa_s->wpa)
3923                         break;
3924                 wpa_sm_update_replay_ctr(wpa_s->wpa,
3925                                          data->driver_gtk_rekey.replay_ctr);
3926                 break;
3927         case EVENT_SCHED_SCAN_STOPPED:
3928                 wpa_s->pno = 0;
3929                 wpa_s->sched_scanning = 0;
3930                 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s);
3931                 wpa_supplicant_notify_scanning(wpa_s, 0);
3932
3933                 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
3934                         break;
3935
3936                 /*
3937                  * Start a new sched scan to continue searching for more SSIDs
3938                  * either if timed out or PNO schedule scan is pending.
3939                  */
3940                 if (wpa_s->sched_scan_timed_out) {
3941                         wpa_supplicant_req_sched_scan(wpa_s);
3942                 } else if (wpa_s->pno_sched_pending) {
3943                         wpa_s->pno_sched_pending = 0;
3944                         wpas_start_pno(wpa_s);
3945                 } else if (resched) {
3946                         wpa_supplicant_req_scan(wpa_s, 0, 0);
3947                 }
3948
3949                 break;
3950         case EVENT_WPS_BUTTON_PUSHED:
3951 #ifdef CONFIG_WPS
3952                 wpas_wps_start_pbc(wpa_s, NULL, 0);
3953 #endif /* CONFIG_WPS */
3954                 break;
3955         case EVENT_AVOID_FREQUENCIES:
3956                 wpa_supplicant_notify_avoid_freq(wpa_s, data);
3957                 break;
3958         case EVENT_CONNECT_FAILED_REASON:
3959 #ifdef CONFIG_AP
3960                 if (!wpa_s->ap_iface || !data)
3961                         break;
3962                 hostapd_event_connect_failed_reason(
3963                         wpa_s->ap_iface->bss[0],
3964                         data->connect_failed_reason.addr,
3965                         data->connect_failed_reason.code);
3966 #endif /* CONFIG_AP */
3967                 break;
3968         case EVENT_NEW_PEER_CANDIDATE:
3969 #ifdef CONFIG_MESH
3970                 if (!wpa_s->ifmsh || !data)
3971                         break;
3972                 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
3973                                      data->mesh_peer.ies,
3974                                      data->mesh_peer.ie_len);
3975 #endif /* CONFIG_MESH */
3976                 break;
3977         case EVENT_SURVEY:
3978 #ifdef CONFIG_AP
3979                 if (!wpa_s->ap_iface)
3980                         break;
3981                 hostapd_event_get_survey(wpa_s->ap_iface,
3982                                          &data->survey_results);
3983 #endif /* CONFIG_AP */
3984                 break;
3985         case EVENT_ACS_CHANNEL_SELECTED:
3986 #ifdef CONFIG_ACS
3987                 if (!wpa_s->ap_iface)
3988                         break;
3989                 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0],
3990                                              &data->acs_selected_channels);
3991 #endif /* CONFIG_ACS */
3992                 break;
3993         default:
3994                 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
3995                 break;
3996         }
3997 }