contrib/wpa/wpa_supplicant/events.c

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