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