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 "notify.h"
  27 #include "common/ieee802_11_defs.h"
  28 #include "common/ieee802_11_common.h"
  29 #include "crypto/random.h"
  30 #include "blacklist.h"
  31 #include "wpas_glue.h"
  32 #include "wps_supplicant.h"
  33 #include "ibss_rsn.h"
  34 #include "sme.h"
  35 #include "gas_query.h"
  36 #include "p2p_supplicant.h"
  37 #include "bgscan.h"
  38 #include "autoscan.h"
  39 #include "ap.h"
  40 #include "bss.h"
  41 #include "scan.h"
  42 #include "offchannel.h"
  43
  44
  45 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
  46 {
  47         struct wpa_ssid *ssid, *old_ssid;
  48
  49         if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
  50                 return 0;
  51
  52         wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
  53                 "information");
  54         ssid = wpa_supplicant_get_ssid(wpa_s);
  55         if (ssid == NULL) {
  56                 wpa_msg(wpa_s, MSG_INFO,
  57                         "No network configuration found for the current AP");
  58                 return -1;
  59         }
  60
  61         if (wpas_network_disabled(wpa_s, ssid)) {
  62                 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
  63                 return -1;
  64         }
  65
  66         wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
  67                 "current AP");
  68         if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
  69                 u8 wpa_ie[80];
  70                 size_t wpa_ie_len = sizeof(wpa_ie);
  71                 wpa_supplicant_set_suites(wpa_s, NULL, ssid,
  72                                           wpa_ie, &wpa_ie_len);
  73         } else {
  74                 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
  75         }
  76
  77         if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
  78                 eapol_sm_invalidate_cached_session(wpa_s->eapol);
  79         old_ssid = wpa_s->current_ssid;
  80         wpa_s->current_ssid = ssid;
  81         wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
  82         wpa_supplicant_initiate_eapol(wpa_s);
  83         if (old_ssid != wpa_s->current_ssid)
  84                 wpas_notify_network_changed(wpa_s);
  85
  86         return 0;
  87 }
  88
  89
  90 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
  91 {
  92         struct wpa_supplicant *wpa_s = eloop_ctx;
  93
  94         if (wpa_s->countermeasures) {
  95                 wpa_s->countermeasures = 0;
  96                 wpa_drv_set_countermeasures(wpa_s, 0);
  97                 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
  98                 wpa_supplicant_req_scan(wpa_s, 0, 0);
  99         }
 100 }
 101
 102
 103 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
 104 {
 105         int bssid_changed;
 106
 107         wnm_bss_keep_alive_deinit(wpa_s);
 108
 109 #ifdef CONFIG_IBSS_RSN
 110         ibss_rsn_deinit(wpa_s->ibss_rsn);
 111         wpa_s->ibss_rsn = NULL;
 112 #endif /* CONFIG_IBSS_RSN */
 113
 114 #ifdef CONFIG_AP
 115         wpa_supplicant_ap_deinit(wpa_s);
 116 #endif /* CONFIG_AP */
 117
 118         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
 119                 return;
 120
 121         wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
 122 #ifdef ANDROID
 123         wpa_s->conf->ap_scan = DEFAULT_AP_SCAN;
 124 #endif
 125         bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
 126         os_memset(wpa_s->bssid, 0, ETH_ALEN);
 127         os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
 128 #ifdef CONFIG_SME
 129         wpa_s->sme.prev_bssid_set = 0;
 130 #endif /* CONFIG_SME */
 131 #ifdef CONFIG_P2P
 132         os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
 133 #endif /* CONFIG_P2P */
 134         wpa_s->current_bss = NULL;
 135         wpa_s->assoc_freq = 0;
 136 #ifdef CONFIG_IEEE80211R
 137 #ifdef CONFIG_SME
 138         if (wpa_s->sme.ft_ies)
 139                 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
 140 #endif /* CONFIG_SME */
 141 #endif /* CONFIG_IEEE80211R */
 142
 143         if (bssid_changed)
 144                 wpas_notify_bssid_changed(wpa_s);
 145
 146         eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
 147         eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
 148         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
 149                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
 150         wpa_s->ap_ies_from_associnfo = 0;
 151 }
 152
 153
 154 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
 155 {
 156         struct wpa_ie_data ie;
 157         int pmksa_set = -1;
 158         size_t i;
 159
 160         if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
 161             ie.pmkid == NULL)
 162                 return;
 163
 164         for (i = 0; i < ie.num_pmkid; i++) {
 165                 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
 166                                                     ie.pmkid + i * PMKID_LEN,
 167                                                     NULL, NULL, 0);
 168                 if (pmksa_set == 0) {
 169                         eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
 170                         break;
 171                 }
 172         }
 173
 174         wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
 175                 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
 176 }
 177
 178
 179 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
 180                                                  union wpa_event_data *data)
 181 {
 182         if (data == NULL) {
 183                 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
 184                         "event");
 185                 return;
 186         }
 187         wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
 188                 " index=%d preauth=%d",
 189                 MAC2STR(data->pmkid_candidate.bssid),
 190                 data->pmkid_candidate.index,
 191                 data->pmkid_candidate.preauth);
 192
 193         pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
 194                             data->pmkid_candidate.index,
 195                             data->pmkid_candidate.preauth);
 196 }
 197
 198
 199 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
 200 {
 201         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
 202             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
 203                 return 0;
 204
 205 #ifdef IEEE8021X_EAPOL
 206         if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
 207             wpa_s->current_ssid &&
 208             !(wpa_s->current_ssid->eapol_flags &
 209               (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 210                EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
 211                 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
 212                  * plaintext or static WEP keys). */
 213                 return 0;
 214         }
 215 #endif /* IEEE8021X_EAPOL */
 216
 217         return 1;
 218 }
 219
 220
 221 /**
 222  * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
 223  * @wpa_s: pointer to wpa_supplicant data
 224  * @ssid: Configuration data for the network
 225  * Returns: 0 on success, -1 on failure
 226  *
 227  * This function is called when starting authentication with a network that is
 228  * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
 229  */
 230 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 231                               struct wpa_ssid *ssid)
 232 {
 233 #ifdef IEEE8021X_EAPOL
 234 #ifdef PCSC_FUNCS
 235         int aka = 0, sim = 0, type;
 236
 237         if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
 238                 return 0;
 239
 240         if (ssid->eap.eap_methods == NULL) {
 241                 sim = 1;
 242                 aka = 1;
 243         } else {
 244                 struct eap_method_type *eap = ssid->eap.eap_methods;
 245                 while (eap->vendor != EAP_VENDOR_IETF ||
 246                        eap->method != EAP_TYPE_NONE) {
 247                         if (eap->vendor == EAP_VENDOR_IETF) {
 248                                 if (eap->method == EAP_TYPE_SIM)
 249                                         sim = 1;
 250                                 else if (eap->method == EAP_TYPE_AKA ||
 251                                          eap->method == EAP_TYPE_AKA_PRIME)
 252                                         aka = 1;
 253                         }
 254                         eap++;
 255                 }
 256         }
 257
 258         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
 259                 sim = 0;
 260         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
 261             eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
 262             NULL)
 263                 aka = 0;
 264
 265         if (!sim && !aka) {
 266                 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
 267                         "use SIM, but neither EAP-SIM nor EAP-AKA are "
 268                         "enabled");
 269                 return 0;
 270         }
 271
 272         wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
 273                 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
 274         if (sim && aka)
 275                 type = SCARD_TRY_BOTH;
 276         else if (aka)
 277                 type = SCARD_USIM_ONLY;
 278         else
 279                 type = SCARD_GSM_SIM_ONLY;
 280
 281         wpa_s->scard = scard_init(type, NULL);
 282         if (wpa_s->scard == NULL) {
 283                 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
 284                         "(pcsc-lite)");
 285                 return -1;
 286         }
 287         wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
 288         eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
 289 #endif /* PCSC_FUNCS */
 290 #endif /* IEEE8021X_EAPOL */
 291
 292         return 0;
 293 }
 294
 295
 296 #ifndef CONFIG_NO_SCAN_PROCESSING
 297 static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
 298                                         struct wpa_ssid *ssid)
 299 {
 300         int i, privacy = 0;
 301
 302         if (ssid->mixed_cell)
 303                 return 1;
 304
 305 #ifdef CONFIG_WPS
 306         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
 307                 return 1;
 308 #endif /* CONFIG_WPS */
 309
 310         for (i = 0; i < NUM_WEP_KEYS; i++) {
 311                 if (ssid->wep_key_len[i]) {
 312                         privacy = 1;
 313                         break;
 314                 }
 315         }
 316 #ifdef IEEE8021X_EAPOL
 317         if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
 318             ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 319                                  EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
 320                 privacy = 1;
 321 #endif /* IEEE8021X_EAPOL */
 322
 323         if (wpa_key_mgmt_wpa(ssid->key_mgmt))
 324                 privacy = 1;
 325
 326         if (bss->caps & IEEE80211_CAP_PRIVACY)
 327                 return privacy;
 328         return !privacy;
 329 }
 330
 331
 332 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
 333                                          struct wpa_ssid *ssid,
 334                                          struct wpa_scan_res *bss)
 335 {
 336         struct wpa_ie_data ie;
 337         int proto_match = 0;
 338         const u8 *rsn_ie, *wpa_ie;
 339         int ret;
 340         int wep_ok;
 341
 342         ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
 343         if (ret >= 0)
 344                 return ret;
 345
 346         /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
 347         wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
 348                 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
 349                   ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
 350                  (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
 351
 352         rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 353         while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
 354                 proto_match++;
 355
 356                 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
 357                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - parse "
 358                                 "failed");
 359                         break;
 360                 }
 361
 362                 if (wep_ok &&
 363                     (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
 364                 {
 365                         wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on TSN "
 366                                 "in RSN IE");
 367                         return 1;
 368                 }
 369
 370                 if (!(ie.proto & ssid->proto)) {
 371                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - proto "
 372                                 "mismatch");
 373                         break;
 374                 }
 375
 376                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 377                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - PTK "
 378                                 "cipher mismatch");
 379                         break;
 380                 }
 381
 382                 if (!(ie.group_cipher & ssid->group_cipher)) {
 383                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - GTK "
 384                                 "cipher mismatch");
 385                         break;
 386                 }
 387
 388                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 389                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - key mgmt "
 390                                 "mismatch");
 391                         break;
 392                 }
 393
 394 #ifdef CONFIG_IEEE80211W
 395                 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
 396                     ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
 397                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - no mgmt "
 398                                 "frame protection");
 399                         break;
 400                 }
 401 #endif /* CONFIG_IEEE80211W */
 402
 403                 wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on RSN IE");
 404                 return 1;
 405         }
 406
 407         wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 408         while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
 409                 proto_match++;
 410
 411                 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
 412                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - parse "
 413                                 "failed");
 414                         break;
 415                 }
 416
 417                 if (wep_ok &&
 418                     (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
 419                 {
 420                         wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on TSN "
 421                                 "in WPA IE");
 422                         return 1;
 423                 }
 424
 425                 if (!(ie.proto & ssid->proto)) {
 426                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - proto "
 427                                 "mismatch");
 428                         break;
 429                 }
 430
 431                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 432                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - PTK "
 433                                 "cipher mismatch");
 434                         break;
 435                 }
 436
 437                 if (!(ie.group_cipher & ssid->group_cipher)) {
 438                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - GTK "
 439                                 "cipher mismatch");
 440                         break;
 441                 }
 442
 443                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 444                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - key mgmt "
 445                                 "mismatch");
 446                         break;
 447                 }
 448
 449                 wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on WPA IE");
 450                 return 1;
 451         }
 452
 453         if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
 454             wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
 455                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - no WPA/RSN proto match");
 456                 return 0;
 457         }
 458
 459         if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
 460                 wpa_dbg(wpa_s, MSG_DEBUG, "   allow in non-WPA/WPA2");
 461                 return 1;
 462         }
 463
 464         wpa_dbg(wpa_s, MSG_DEBUG, "   reject due to mismatch with "
 465                 "WPA/WPA2");
 466
 467         return 0;
 468 }
 469
 470
 471 static int freq_allowed(int *freqs, int freq)
 472 {
 473         int i;
 474
 475         if (freqs == NULL)
 476                 return 1;
 477
 478         for (i = 0; freqs[i]; i++)
 479                 if (freqs[i] == freq)
 480                         return 1;
 481         return 0;
 482 }
 483
 484
 485 static int ht_supported(const struct hostapd_hw_modes *mode)
 486 {
 487         if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) {
 488                 /*
 489                  * The driver did not indicate whether it supports HT. Assume
 490                  * it does to avoid connection issues.
 491                  */
 492                 return 1;
 493         }
 494
 495         /*
 496          * IEEE Std 802.11n-2009 20.1.1:
 497          * An HT non-AP STA shall support all EQM rates for one spatial stream.
 498          */
 499         return mode->mcs_set[0] == 0xff;
 500 }
 501
 502
 503 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_scan_res *bss)
 504 {
 505         const struct hostapd_hw_modes *mode = NULL, *modes;
 506         const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
 507         const u8 *rate_ie;
 508         int i, j, k;
 509
 510         if (bss->freq == 0)
 511                 return 1; /* Cannot do matching without knowing band */
 512
 513         modes = wpa_s->hw.modes;
 514         if (modes == NULL) {
 515                 /*
 516                  * The driver does not provide any additional information
 517                  * about the utilized hardware, so allow the connection attempt
 518                  * to continue.
 519                  */
 520                 return 1;
 521         }
 522
 523         for (i = 0; i < wpa_s->hw.num_modes; i++) {
 524                 for (j = 0; j < modes[i].num_channels; j++) {
 525                         int freq = modes[i].channels[j].freq;
 526                         if (freq == bss->freq) {
 527                                 if (mode &&
 528                                     mode->mode == HOSTAPD_MODE_IEEE80211G)
 529                                         break; /* do not allow 802.11b replace
 530                                                 * 802.11g */
 531                                 mode = &modes[i];
 532                                 break;
 533                         }
 534                 }
 535         }
 536
 537         if (mode == NULL)
 538                 return 0;
 539
 540         for (i = 0; i < (int) sizeof(scan_ie); i++) {
 541                 rate_ie = wpa_scan_get_ie(bss, scan_ie[i]);
 542                 if (rate_ie == NULL)
 543                         continue;
 544
 545                 for (j = 2; j < rate_ie[1] + 2; j++) {
 546                         int flagged = !!(rate_ie[j] & 0x80);
 547                         int r = (rate_ie[j] & 0x7f) * 5;
 548
 549                         /*
 550                          * IEEE Std 802.11n-2009 7.3.2.2:
 551                          * The new BSS Membership selector value is encoded
 552                          * like a legacy basic rate, but it is not a rate and
 553                          * only indicates if the BSS members are required to
 554                          * support the mandatory features of Clause 20 [HT PHY]
 555                          * in order to join the BSS.
 556                          */
 557                         if (flagged && ((rate_ie[j] & 0x7f) ==
 558                                         BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
 559                                 if (!ht_supported(mode)) {
 560                                         wpa_dbg(wpa_s, MSG_DEBUG,
 561                                                 "   hardware does not support "
 562                                                 "HT PHY");
 563                                         return 0;
 564                                 }
 565                                 continue;
 566                         }
 567
 568                         if (!flagged)
 569                                 continue;
 570
 571                         /* check for legacy basic rates */
 572                         for (k = 0; k < mode->num_rates; k++) {
 573                                 if (mode->rates[k] == r)
 574                                         break;
 575                         }
 576                         if (k == mode->num_rates) {
 577                                 /*
 578                                  * IEEE Std 802.11-2007 7.3.2.2 demands that in
 579                                  * order to join a BSS all required rates
 580                                  * have to be supported by the hardware.
 581                                  */
 582                                 wpa_dbg(wpa_s, MSG_DEBUG, "   hardware does "
 583                                         "not support required rate %d.%d Mbps",
 584                                         r / 10, r % 10);
 585                                 return 0;
 586                         }
 587                 }
 588         }
 589
 590         return 1;
 591 }
 592
 593
 594 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
 595                                             int i, struct wpa_scan_res *bss,
 596                                             struct wpa_ssid *group)
 597 {
 598         const u8 *ssid_;
 599         u8 wpa_ie_len, rsn_ie_len, ssid_len;
 600         int wpa;
 601         struct wpa_blacklist *e;
 602         const u8 *ie;
 603         struct wpa_ssid *ssid;
 604
 605         ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
 606         ssid_ = ie ? ie + 2 : (u8 *) "";
 607         ssid_len = ie ? ie[1] : 0;
 608
 609         ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 610         wpa_ie_len = ie ? ie[1] : 0;
 611
 612         ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 613         rsn_ie_len = ie ? ie[1] : 0;
 614
 615         wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
 616                 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
 617                 i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len),
 618                 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
 619                 wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
 620
 621         e = wpa_blacklist_get(wpa_s, bss->bssid);
 622         if (e) {
 623                 int limit = 1;
 624                 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
 625                         /*
 626                          * When only a single network is enabled, we can
 627                          * trigger blacklisting on the first failure. This
 628                          * should not be done with multiple enabled networks to
 629                          * avoid getting forced to move into a worse ESS on
 630                          * single error if there are no other BSSes of the
 631                          * current ESS.
 632                          */
 633                         limit = 0;
 634                 }
 635                 if (e->count > limit) {
 636                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - blacklisted "
 637                                 "(count=%d limit=%d)", e->count, limit);
 638                         return NULL;
 639                 }
 640         }
 641
 642         if (ssid_len == 0) {
 643                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID not known");
 644                 return NULL;
 645         }
 646
 647         wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
 648
 649         for (ssid = group; ssid; ssid = ssid->pnext) {
 650                 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
 651
 652                 if (wpas_network_disabled(wpa_s, ssid)) {
 653                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - disabled");
 654                         continue;
 655                 }
 656
 657 #ifdef CONFIG_WPS
 658                 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
 659                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - blacklisted "
 660                                 "(WPS)");
 661                         continue;
 662                 }
 663
 664                 if (wpa && ssid->ssid_len == 0 &&
 665                     wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
 666                         check_ssid = 0;
 667
 668                 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
 669                         /* Only allow wildcard SSID match if an AP
 670                          * advertises active WPS operation that matches
 671                          * with our mode. */
 672                         check_ssid = 1;
 673                         if (ssid->ssid_len == 0 &&
 674                             wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
 675                                 check_ssid = 0;
 676                 }
 677 #endif /* CONFIG_WPS */
 678
 679                 if (ssid->bssid_set && ssid->ssid_len == 0 &&
 680                     os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
 681                         check_ssid = 0;
 682
 683                 if (check_ssid &&
 684                     (ssid_len != ssid->ssid_len ||
 685                      os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
 686                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID mismatch");
 687                         continue;
 688                 }
 689
 690                 if (ssid->bssid_set &&
 691                     os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
 692                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - BSSID mismatch");
 693                         continue;
 694                 }
 695
 696                 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
 697                         continue;
 698
 699                 if (!wpa &&
 700                     !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
 701                     !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
 702                     !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
 703                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - non-WPA network "
 704                                 "not allowed");
 705                         continue;
 706                 }
 707
 708                 if (!wpa_supplicant_match_privacy(bss, ssid)) {
 709                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - privacy "
 710                                 "mismatch");
 711                         continue;
 712                 }
 713
 714                 if (bss->caps & IEEE80211_CAP_IBSS) {
 715                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - IBSS (adhoc) "
 716                                 "network");
 717                         continue;
 718                 }
 719
 720                 if (!freq_allowed(ssid->freq_list, bss->freq)) {
 721                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - frequency not "
 722                                 "allowed");
 723                         continue;
 724                 }
 725
 726                 if (!rate_match(wpa_s, bss)) {
 727                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - rate sets do "
 728                                 "not match");
 729                         continue;
 730                 }
 731
 732 #ifdef CONFIG_P2P
 733                 /*
 734                  * TODO: skip the AP if its P2P IE has Group Formation
 735                  * bit set in the P2P Group Capability Bitmap and we
 736                  * are not in Group Formation with that device.
 737                  */
 738 #endif /* CONFIG_P2P */
 739
 740                 /* Matching configuration found */
 741                 return ssid;
 742         }
 743
 744         /* No matching configuration found */
 745         return NULL;
 746 }
 747
 748
 749 static struct wpa_bss *
 750 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
 751                           struct wpa_scan_results *scan_res,
 752                           struct wpa_ssid *group,
 753                           struct wpa_ssid **selected_ssid)
 754 {
 755         size_t i;
 756
 757         wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
 758                 group->priority);
 759
 760         for (i = 0; i < scan_res->num; i++) {
 761                 struct wpa_scan_res *bss = scan_res->res[i];
 762                 const u8 *ie, *ssid;
 763                 u8 ssid_len;
 764
 765                 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
 766                 if (!*selected_ssid)
 767                         continue;
 768
 769                 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
 770                 ssid = ie ? ie + 2 : (u8 *) "";
 771                 ssid_len = ie ? ie[1] : 0;
 772
 773                 wpa_dbg(wpa_s, MSG_DEBUG, "   selected BSS " MACSTR
 774                         " ssid='%s'",
 775                         MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len));
 776                 return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len);
 777         }
 778
 779         return NULL;
 780 }
 781
 782
 783 static struct wpa_bss *
 784 wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
 785                             struct wpa_scan_results *scan_res,
 786                             struct wpa_ssid **selected_ssid)
 787 {
 788         struct wpa_bss *selected = NULL;
 789         int prio;
 790
 791         while (selected == NULL) {
 792                 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
 793                         selected = wpa_supplicant_select_bss(
 794                                 wpa_s, scan_res, wpa_s->conf->pssid[prio],
 795                                 selected_ssid);
 796                         if (selected)
 797                                 break;
 798                 }
 799
 800                 if (selected == NULL && wpa_s->blacklist &&
 801                     !wpa_s->countermeasures) {
 802                         wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
 803                                 "blacklist and try again");
 804                         wpa_blacklist_clear(wpa_s);
 805                         wpa_s->blacklist_cleared++;
 806                 } else if (selected == NULL)
 807                         break;
 808         }
 809
 810         return selected;
 811 }
 812
 813
 814 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
 815                                         int timeout_sec, int timeout_usec)
 816 {
 817         if (!wpa_supplicant_enabled_networks(wpa_s)) {
 818                 /*
 819                  * No networks are enabled; short-circuit request so
 820                  * we don't wait timeout seconds before transitioning
 821                  * to INACTIVE state.
 822                  */
 823                 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
 824                 return;
 825         }
 826         wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
 827 }
 828
 829
 830 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
 831                            struct wpa_bss *selected,
 832                            struct wpa_ssid *ssid)
 833 {
 834         if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
 835                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
 836                         "PBC session overlap");
 837 #ifdef CONFIG_P2P
 838                 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
 839                         return -1;
 840 #endif /* CONFIG_P2P */
 841
 842 #ifdef CONFIG_WPS
 843                 wpas_wps_cancel(wpa_s);
 844 #endif /* CONFIG_WPS */
 845                 return -1;
 846         }
 847
 848         /*
 849          * Do not trigger new association unless the BSSID has changed or if
 850          * reassociation is requested. If we are in process of associating with
 851          * the selected BSSID, do not trigger new attempt.
 852          */
 853         if (wpa_s->reassociate ||
 854             (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
 855              ((wpa_s->wpa_state != WPA_ASSOCIATING &&
 856                wpa_s->wpa_state != WPA_AUTHENTICATING) ||
 857               os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
 858               0))) {
 859                 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
 860                         wpa_supplicant_req_new_scan(wpa_s, 10, 0);
 861                         return 0;
 862                 }
 863                 wpa_msg(wpa_s, MSG_DEBUG, "Request association: "
 864                         "reassociate: %d  selected: "MACSTR "  bssid: " MACSTR
 865                         "  pending: " MACSTR "  wpa_state: %s",
 866                         wpa_s->reassociate, MAC2STR(selected->bssid),
 867                         MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
 868                         wpa_supplicant_state_txt(wpa_s->wpa_state));
 869                 wpa_supplicant_associate(wpa_s, selected, ssid);
 870         } else {
 871                 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the "
 872                         "selected AP");
 873         }
 874
 875         return 0;
 876 }
 877
 878
 879 static struct wpa_ssid *
 880 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
 881 {
 882         int prio;
 883         struct wpa_ssid *ssid;
 884
 885         for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
 886                 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
 887                 {
 888                         if (wpas_network_disabled(wpa_s, ssid))
 889                                 continue;
 890                         if (ssid->mode == IEEE80211_MODE_IBSS ||
 891                             ssid->mode == IEEE80211_MODE_AP)
 892                                 return ssid;
 893                 }
 894         }
 895         return NULL;
 896 }
 897
 898
 899 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
 900  * on BSS added and BSS changed events */
 901 static void wpa_supplicant_rsn_preauth_scan_results(
 902         struct wpa_supplicant *wpa_s)
 903 {
 904         struct wpa_bss *bss;
 905
 906         if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
 907                 return;
 908
 909         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
 910                 const u8 *ssid, *rsn;
 911
 912                 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
 913                 if (ssid == NULL)
 914                         continue;
 915
 916                 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 917                 if (rsn == NULL)
 918                         continue;
 919
 920                 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
 921         }
 922
 923 }
 924
 925
 926 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
 927                                        struct wpa_bss *selected,
 928                                        struct wpa_ssid *ssid,
 929                                        struct wpa_scan_results *scan_res)
 930 {
 931         size_t i;
 932         struct wpa_scan_res *current_bss = NULL;
 933         int min_diff;
 934
 935         if (wpa_s->reassociate)
 936                 return 1; /* explicit request to reassociate */
 937         if (wpa_s->wpa_state < WPA_ASSOCIATED)
 938                 return 1; /* we are not associated; continue */
 939         if (wpa_s->current_ssid == NULL)
 940                 return 1; /* unknown current SSID */
 941         if (wpa_s->current_ssid != ssid)
 942                 return 1; /* different network block */
 943
 944         if (wpas_driver_bss_selection(wpa_s))
 945                 return 0; /* Driver-based roaming */
 946
 947         for (i = 0; i < scan_res->num; i++) {
 948                 struct wpa_scan_res *res = scan_res->res[i];
 949                 const u8 *ie;
 950                 if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0)
 951                         continue;
 952
 953                 ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
 954                 if (ie == NULL)
 955                         continue;
 956                 if (ie[1] != wpa_s->current_ssid->ssid_len ||
 957                     os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0)
 958                         continue;
 959                 current_bss = res;
 960                 break;
 961         }
 962
 963         if (!current_bss)
 964                 return 1; /* current BSS not seen in scan results */
 965
 966 #ifndef CONFIG_NO_ROAMING
 967         wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
 968         wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
 969                 MAC2STR(current_bss->bssid), current_bss->level);
 970         wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
 971                 MAC2STR(selected->bssid), selected->level);
 972
 973         if (wpa_s->current_ssid->bssid_set &&
 974             os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
 975             0) {
 976                 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
 977                         "has preferred BSSID");
 978                 return 1;
 979         }
 980
 981         min_diff = 2;
 982         if (current_bss->level < 0) {
 983                 if (current_bss->level < -85)
 984                         min_diff = 1;
 985                 else if (current_bss->level < -80)
 986                         min_diff = 2;
 987                 else if (current_bss->level < -75)
 988                         min_diff = 3;
 989                 else if (current_bss->level < -70)
 990                         min_diff = 4;
 991                 else
 992                         min_diff = 5;
 993         }
 994         if (abs(current_bss->level - selected->level) < min_diff) {
 995                 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
 996                         "in signal level");
 997                 return 0;
 998         }
 999
1000         return 1;
1001 #else /* CONFIG_NO_ROAMING */
1002         return 0;
1003 #endif /* CONFIG_NO_ROAMING */
1004 }
1005
1006
1007 /* Return < 0 if no scan results could be fetched or if scan results should not
1008  * be shared with other virtual interfaces. */
1009 #ifdef ANDROID_P2P
1010 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1011                                               union wpa_event_data *data, int suppress_event)
1012 #else
1013 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1014                                               union wpa_event_data *data)
1015 #endif
1016 {
1017         struct wpa_bss *selected;
1018         struct wpa_ssid *ssid = NULL;
1019         struct wpa_scan_results *scan_res;
1020         int ap = 0;
1021
1022 #ifdef CONFIG_AP
1023         if (wpa_s->ap_iface)
1024                 ap = 1;
1025 #endif /* CONFIG_AP */
1026
1027         wpa_supplicant_notify_scanning(wpa_s, 0);
1028
1029 #ifdef CONFIG_P2P
1030 #ifdef ANDROID_P2P
1031         if (p2p_search_pending(wpa_s->global->p2p) && !wpa_s->global->p2p_disabled &&
1032 #else
1033         if (wpa_s->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled &&
1034 #endif
1035             wpa_s->global->p2p != NULL) {
1036                 wpa_s->p2p_cb_on_scan_complete = 0;
1037                 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) {
1038                         wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation "
1039                                 "stopped scan processing");
1040                         return -1;
1041                 }
1042         }
1043 #endif /* CONFIG_P2P */
1044
1045         scan_res = wpa_supplicant_get_scan_results(wpa_s,
1046                                                    data ? &data->scan_info :
1047                                                    NULL, 1);
1048         if (scan_res == NULL) {
1049                 if (wpa_s->conf->ap_scan == 2 || ap)
1050                         return -1;
1051                 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1052                         "scanning again");
1053                 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1054                 return -1;
1055         }
1056
1057 #ifndef CONFIG_NO_RANDOM_POOL
1058         size_t i, num;
1059         num = scan_res->num;
1060         if (num > 10)
1061                 num = 10;
1062         for (i = 0; i < num; i++) {
1063                 u8 buf[5];
1064                 struct wpa_scan_res *res = scan_res->res[i];
1065                 buf[0] = res->bssid[5];
1066                 buf[1] = res->qual & 0xff;
1067                 buf[2] = res->noise & 0xff;
1068                 buf[3] = res->level & 0xff;
1069                 buf[4] = res->tsf & 0xff;
1070                 random_add_randomness(buf, sizeof(buf));
1071         }
1072 #endif /* CONFIG_NO_RANDOM_POOL */
1073
1074         if (wpa_s->scan_res_handler) {
1075                 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1076                                          struct wpa_scan_results *scan_res);
1077
1078                 scan_res_handler = wpa_s->scan_res_handler;
1079                 wpa_s->scan_res_handler = NULL;
1080                 scan_res_handler(wpa_s, scan_res);
1081
1082                 wpa_scan_results_free(scan_res);
1083                 return -2;
1084         }
1085
1086         if (ap) {
1087                 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1088 #ifdef CONFIG_AP
1089                 if (wpa_s->ap_iface->scan_cb)
1090                         wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1091 #endif /* CONFIG_AP */
1092                 wpa_scan_results_free(scan_res);
1093                 return 0;
1094         }
1095 #ifdef ANDROID_P2P
1096         if(!suppress_event)
1097         {
1098                 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
1099                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1100                 wpas_notify_scan_results(wpa_s);
1101         }
1102 #else
1103         wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
1104         wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1105         wpas_notify_scan_results(wpa_s);
1106 #endif
1107
1108         wpas_notify_scan_done(wpa_s, 1);
1109
1110         if (sme_proc_obss_scan(wpa_s) > 0) {
1111                 wpa_scan_results_free(scan_res);
1112                 return 0;
1113         }
1114
1115         if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
1116                 wpa_scan_results_free(scan_res);
1117                 return 0;
1118         }
1119
1120         if (autoscan_notify_scan(wpa_s, scan_res)) {
1121                 wpa_scan_results_free(scan_res);
1122                 return 0;
1123         }
1124
1125         if (wpa_s->disconnected) {
1126                 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1127                 wpa_scan_results_free(scan_res);
1128                 return 0;
1129         }
1130
1131         if (!wpas_driver_bss_selection(wpa_s) &&
1132             bgscan_notify_scan(wpa_s, scan_res) == 1) {
1133                 wpa_scan_results_free(scan_res);
1134                 return 0;
1135         }
1136
1137         selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
1138
1139         if (selected) {
1140                 int skip;
1141                 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid,
1142                                                     scan_res);
1143                 wpa_scan_results_free(scan_res);
1144                 if (skip) {
1145                         wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1146                         return 0;
1147                 }
1148
1149                 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1150                         wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1151                         return -1;
1152                 }
1153                 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1154         } else {
1155                 wpa_scan_results_free(scan_res);
1156                 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1157                 ssid = wpa_supplicant_pick_new_network(wpa_s);
1158                 if (ssid) {
1159                         wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1160                         wpa_supplicant_associate(wpa_s, NULL, ssid);
1161                         wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1162                 } else {
1163                         int timeout_sec = wpa_s->scan_interval;
1164                         int timeout_usec = 0;
1165 #ifdef CONFIG_P2P
1166                         if (wpas_p2p_scan_no_go_seen(wpa_s) == 1)
1167                                 return 0;
1168
1169                         if (wpa_s->p2p_in_provisioning) {
1170                                 /*
1171                                  * Use shorter wait during P2P Provisioning
1172                                  * state to speed up group formation.
1173                                  */
1174                                 timeout_sec = 0;
1175                                 timeout_usec = 250000;
1176                                 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1177                                                             timeout_usec);
1178                                 return 0;
1179                         }
1180 #endif /* CONFIG_P2P */
1181                         if (wpa_supplicant_req_sched_scan(wpa_s))
1182                                 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1183                                                             timeout_usec);
1184                 }
1185         }
1186         return 0;
1187 }
1188
1189
1190 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1191                                               union wpa_event_data *data)
1192 {
1193         const char *rn, *rn2;
1194         struct wpa_supplicant *ifs;
1195 #ifdef ANDROID_P2P
1196         if (_wpa_supplicant_event_scan_results(wpa_s, data, 0) < 0) {
1197 #else
1198         if (_wpa_supplicant_event_scan_results(wpa_s, data) < 0) {
1199 #endif
1200                 /*
1201                  * If no scan results could be fetched, then no need to
1202                  * notify those interfaces that did not actually request
1203                  * this scan.
1204                  */
1205                 return;
1206         }
1207
1208         /*
1209          * Check other interfaces to see if they have the same radio-name. If
1210          * so, they get updated with this same scan info.
1211          */
1212         if (!wpa_s->driver->get_radio_name)
1213                 return;
1214
1215         rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
1216         if (rn == NULL || rn[0] == '\0')
1217                 return;
1218
1219         wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces "
1220                 "sharing same radio (%s) in event_scan_results", rn);
1221
1222         for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
1223                 if (ifs == wpa_s || !ifs->driver->get_radio_name)
1224                         continue;
1225
1226                 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
1227                 if (rn2 && os_strcmp(rn, rn2) == 0) {
1228                         wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1229                                    "sibling", ifs->ifname);
1230 #ifdef ANDROID_P2P
1231                         if ( (ifs->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) || (ifs->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)) {
1232                                 /* Do not update the scan results from STA interface to p2p interfaces */
1233                                 wpa_printf(MSG_DEBUG, "Not Updating scan results on interface %s from "
1234                                            "sibling %s", ifs->ifname, wpa_s->ifname);
1235                                 continue;
1236                         }
1237                         else {
1238                                 /* P2P_FIND will result in too many SCAN_RESULT_EVENTS within
1239                                  * no time. Avoid announcing it to application as it may not
1240                                  * be that useful (since results will be that of only 1,6,11).
1241                                  * over to any other interface as it
1242                                  */
1243                                 if(p2p_search_in_progress(wpa_s->global->p2p))
1244                                         _wpa_supplicant_event_scan_results(ifs, data, 1);
1245                                 else
1246                                         _wpa_supplicant_event_scan_results(ifs, data, 0);
1247                         }
1248 #else
1249                         _wpa_supplicant_event_scan_results(ifs, data);
1250 #endif
1251                 }
1252         }
1253 }
1254
1255 #endif /* CONFIG_NO_SCAN_PROCESSING */
1256
1257
1258 #ifdef CONFIG_WNM
1259
1260 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1261 {
1262         struct wpa_supplicant *wpa_s = eloop_ctx;
1263
1264         if (wpa_s->wpa_state < WPA_ASSOCIATED)
1265                 return;
1266
1267         wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1268                    MAC2STR(wpa_s->bssid));
1269         /* TODO: could skip this if normal data traffic has been sent */
1270         /* TODO: Consider using some more appropriate data frame for this */
1271         if (wpa_s->l2)
1272                 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, (u8 *) "", 0);
1273
1274 #ifdef CONFIG_SME
1275         if (wpa_s->sme.bss_max_idle_period) {
1276                 unsigned int msec;
1277                 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1278                 if (msec > 100)
1279                         msec -= 100;
1280                 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1281                                        wnm_bss_keep_alive, wpa_s, NULL);
1282         }
1283 #endif /* CONFIG_SME */
1284 }
1285
1286
1287 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1288                                    const u8 *ies, size_t ies_len)
1289 {
1290         struct ieee802_11_elems elems;
1291
1292         if (ies == NULL)
1293                 return;
1294
1295         if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1296                 return;
1297
1298 #ifdef CONFIG_SME
1299         if (elems.bss_max_idle_period) {
1300                 unsigned int msec;
1301                 wpa_s->sme.bss_max_idle_period =
1302                         WPA_GET_LE16(elems.bss_max_idle_period);
1303                 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1304                            "TU)%s", wpa_s->sme.bss_max_idle_period,
1305                            (elems.bss_max_idle_period[2] & 0x01) ?
1306                            " (protected keep-live required)" : "");
1307                 if (wpa_s->sme.bss_max_idle_period == 0)
1308                         wpa_s->sme.bss_max_idle_period = 1;
1309                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1310                         eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1311                          /* msec times 1000 */
1312                         msec = wpa_s->sme.bss_max_idle_period * 1024;
1313                         if (msec > 100)
1314                                 msec -= 100;
1315                         eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1316                                                wnm_bss_keep_alive, wpa_s,
1317                                                NULL);
1318                 }
1319         }
1320 #endif /* CONFIG_SME */
1321 }
1322
1323 #endif /* CONFIG_WNM */
1324
1325
1326 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1327 {
1328 #ifdef CONFIG_WNM
1329         eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1330 #endif /* CONFIG_WNM */
1331 }
1332
1333
1334 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1335                                           union wpa_event_data *data)
1336 {
1337         int l, len, found = 0, wpa_found, rsn_found;
1338         const u8 *p;
1339
1340         wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1341         if (data->assoc_info.req_ies)
1342                 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1343                             data->assoc_info.req_ies_len);
1344         if (data->assoc_info.resp_ies) {
1345                 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1346                             data->assoc_info.resp_ies_len);
1347 #ifdef CONFIG_TDLS
1348                 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1349                                         data->assoc_info.resp_ies_len);
1350 #endif /* CONFIG_TDLS */
1351 #ifdef CONFIG_WNM
1352                 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1353                                        data->assoc_info.resp_ies_len);
1354 #endif /* CONFIG_WNM */
1355         }
1356         if (data->assoc_info.beacon_ies)
1357                 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1358                             data->assoc_info.beacon_ies,
1359                             data->assoc_info.beacon_ies_len);
1360         if (data->assoc_info.freq)
1361                 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1362                         data->assoc_info.freq);
1363
1364         p = data->assoc_info.req_ies;
1365         l = data->assoc_info.req_ies_len;
1366
1367         /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1368         while (p && l >= 2) {
1369                 len = p[1] + 2;
1370                 if (len > l) {
1371                         wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1372                                     p, l);
1373                         break;
1374                 }
1375                 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1376                      (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1377                     (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1378                         if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1379                                 break;
1380                         found = 1;
1381                         wpa_find_assoc_pmkid(wpa_s);
1382                         break;
1383                 }
1384                 l -= len;
1385                 p += len;
1386         }
1387         if (!found && data->assoc_info.req_ies)
1388                 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1389
1390 #ifdef CONFIG_IEEE80211R
1391 #ifdef CONFIG_SME
1392         if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1393                 u8 bssid[ETH_ALEN];
1394                 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1395                     wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1396                                                  data->assoc_info.resp_ies,
1397                                                  data->assoc_info.resp_ies_len,
1398                                                  bssid) < 0) {
1399                         wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1400                                 "Reassociation Response failed");
1401                         wpa_supplicant_deauthenticate(
1402                                 wpa_s, WLAN_REASON_INVALID_IE);
1403                         return -1;
1404                 }
1405         }
1406
1407         p = data->assoc_info.resp_ies;
1408         l = data->assoc_info.resp_ies_len;
1409
1410 #ifdef CONFIG_WPS_STRICT
1411         if (p && wpa_s->current_ssid &&
1412             wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1413                 struct wpabuf *wps;
1414                 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1415                 if (wps == NULL) {
1416                         wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1417                                 "include WPS IE in (Re)Association Response");
1418                         return -1;
1419                 }
1420
1421                 if (wps_validate_assoc_resp(wps) < 0) {
1422                         wpabuf_free(wps);
1423                         wpa_supplicant_deauthenticate(
1424                                 wpa_s, WLAN_REASON_INVALID_IE);
1425                         return -1;
1426                 }
1427                 wpabuf_free(wps);
1428         }
1429 #endif /* CONFIG_WPS_STRICT */
1430
1431         /* Go through the IEs and make a copy of the MDIE, if present. */
1432         while (p && l >= 2) {
1433                 len = p[1] + 2;
1434                 if (len > l) {
1435                         wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1436                                     p, l);
1437                         break;
1438                 }
1439                 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1440                     p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1441                         wpa_s->sme.ft_used = 1;
1442                         os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1443                                   MOBILITY_DOMAIN_ID_LEN);
1444                         break;
1445                 }
1446                 l -= len;
1447                 p += len;
1448         }
1449 #endif /* CONFIG_SME */
1450
1451         wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1452                              data->assoc_info.resp_ies_len);
1453 #endif /* CONFIG_IEEE80211R */
1454
1455         /* WPA/RSN IE from Beacon/ProbeResp */
1456         p = data->assoc_info.beacon_ies;
1457         l = data->assoc_info.beacon_ies_len;
1458
1459         /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1460          */
1461         wpa_found = rsn_found = 0;
1462         while (p && l >= 2) {
1463                 len = p[1] + 2;
1464                 if (len > l) {
1465                         wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1466                                     p, l);
1467                         break;
1468                 }
1469                 if (!wpa_found &&
1470                     p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1471                     os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1472                         wpa_found = 1;
1473                         wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1474                 }
1475
1476                 if (!rsn_found &&
1477                     p[0] == WLAN_EID_RSN && p[1] >= 2) {
1478                         rsn_found = 1;
1479                         wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1480                 }
1481
1482                 l -= len;
1483                 p += len;
1484         }
1485
1486         if (!wpa_found && data->assoc_info.beacon_ies)
1487                 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1488         if (!rsn_found && data->assoc_info.beacon_ies)
1489                 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1490         if (wpa_found || rsn_found)
1491                 wpa_s->ap_ies_from_associnfo = 1;
1492
1493         if (wpa_s->assoc_freq && data->assoc_info.freq &&
1494             wpa_s->assoc_freq != data->assoc_info.freq) {
1495                 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1496                            "%u to %u MHz",
1497                            wpa_s->assoc_freq, data->assoc_info.freq);
1498                 wpa_supplicant_update_scan_results(wpa_s);
1499         }
1500
1501         wpa_s->assoc_freq = data->assoc_info.freq;
1502
1503         return 0;
1504 }
1505
1506
1507 static struct wpa_bss * wpa_supplicant_get_new_bss(
1508         struct wpa_supplicant *wpa_s, const u8 *bssid)
1509 {
1510         struct wpa_bss *bss = NULL;
1511         struct wpa_ssid *ssid = wpa_s->current_ssid;
1512
1513         if (ssid->ssid_len > 0)
1514                 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
1515         if (!bss)
1516                 bss = wpa_bss_get_bssid(wpa_s, bssid);
1517
1518         return bss;
1519 }
1520
1521
1522 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
1523 {
1524         const u8 *bss_wpa = NULL, *bss_rsn = NULL;
1525
1526         if (!wpa_s->current_bss || !wpa_s->current_ssid)
1527                 return -1;
1528
1529         if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
1530                 return 0;
1531
1532         bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
1533                                         WPA_IE_VENDOR_TYPE);
1534         bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
1535
1536         if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1537                                  bss_wpa ? 2 + bss_wpa[1] : 0) ||
1538             wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1539                                  bss_rsn ? 2 + bss_rsn[1] : 0))
1540                 return -1;
1541
1542         return 0;
1543 }
1544
1545
1546 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1547                                        union wpa_event_data *data)
1548 {
1549         u8 bssid[ETH_ALEN];
1550         int ft_completed;
1551         int bssid_changed;
1552         struct wpa_driver_capa capa;
1553
1554 #ifdef CONFIG_AP
1555         if (wpa_s->ap_iface) {
1556                 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1557                                     data->assoc_info.addr,
1558                                     data->assoc_info.req_ies,
1559                                     data->assoc_info.req_ies_len,
1560                                     data->assoc_info.reassoc);
1561                 return;
1562         }
1563 #endif /* CONFIG_AP */
1564
1565         ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1566         if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1567                 return;
1568
1569         wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
1570         if (wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
1571             os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
1572                 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1573                         MACSTR, MAC2STR(bssid));
1574                 random_add_randomness(bssid, ETH_ALEN);
1575                 bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN);
1576                 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1577                 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1578                 if (bssid_changed)
1579                         wpas_notify_bssid_changed(wpa_s);
1580
1581                 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1582                         wpa_clear_keys(wpa_s, bssid);
1583                 }
1584                 if (wpa_supplicant_select_config(wpa_s) < 0) {
1585                         wpa_supplicant_disassociate(
1586                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1587                         return;
1588                 }
1589                 if (wpa_s->current_ssid) {
1590                         struct wpa_bss *bss = NULL;
1591
1592                         bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
1593                         if (!bss) {
1594                                 wpa_supplicant_update_scan_results(wpa_s);
1595
1596                                 /* Get the BSS from the new scan results */
1597                                 bss = wpa_supplicant_get_new_bss(wpa_s, bssid);
1598                         }
1599
1600                         if (bss)
1601                                 wpa_s->current_bss = bss;
1602                 }
1603
1604                 if (wpa_s->conf->ap_scan == 1 &&
1605                     wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
1606                         if (wpa_supplicant_assoc_update_ie(wpa_s) < 0)
1607                                 wpa_msg(wpa_s, MSG_WARNING,
1608                                         "WPA/RSN IEs not updated");
1609                 }
1610         }
1611
1612 #ifdef CONFIG_SME
1613         os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1614         wpa_s->sme.prev_bssid_set = 1;
1615 #endif /* CONFIG_SME */
1616
1617         wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1618         if (wpa_s->current_ssid) {
1619                 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1620                  * initialized before association, but for other modes,
1621                  * initialize PC/SC here, if the current configuration needs
1622                  * smartcard or SIM/USIM. */
1623                 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1624         }
1625         wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1626         if (wpa_s->l2)
1627                 l2_packet_notify_auth_start(wpa_s->l2);
1628
1629         /*
1630          * Set portEnabled first to FALSE in order to get EAP state machine out
1631          * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1632          * state machine may transit to AUTHENTICATING state based on obsolete
1633          * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1634          * AUTHENTICATED without ever giving chance to EAP state machine to
1635          * reset the state.
1636          */
1637         if (!ft_completed) {
1638                 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1639                 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1640         }
1641         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1642                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1643         /* 802.1X::portControl = Auto */
1644         eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1645         wpa_s->eapol_received = 0;
1646         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1647             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1648             (wpa_s->current_ssid &&
1649              wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1650                 wpa_supplicant_cancel_auth_timeout(wpa_s);
1651                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1652         } else if (!ft_completed) {
1653                 /* Timeout for receiving the first EAPOL packet */
1654                 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1655         }
1656         wpa_supplicant_cancel_scan(wpa_s);
1657
1658         if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1659             wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1660                 /*
1661                  * We are done; the driver will take care of RSN 4-way
1662                  * handshake.
1663                  */
1664                 wpa_supplicant_cancel_auth_timeout(wpa_s);
1665                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1666                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1667                 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1668         } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1669                    wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1670                 /*
1671                  * The driver will take care of RSN 4-way handshake, so we need
1672                  * to allow EAPOL supplicant to complete its work without
1673                  * waiting for WPA supplicant.
1674                  */
1675                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1676         } else if (ft_completed) {
1677                 /*
1678                  * FT protocol completed - make sure EAPOL state machine ends
1679                  * up in authenticated.
1680                  */
1681                 wpa_supplicant_cancel_auth_timeout(wpa_s);
1682                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1683                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1684                 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1685         }
1686
1687         if (wpa_s->pending_eapol_rx) {
1688                 struct os_time now, age;
1689                 os_get_time(&now);
1690                 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1691                 if (age.sec == 0 && age.usec < 100000 &&
1692                     os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1693                     0) {
1694                         wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
1695                                 "frame that was received just before "
1696                                 "association notification");
1697                         wpa_supplicant_rx_eapol(
1698                                 wpa_s, wpa_s->pending_eapol_rx_src,
1699                                 wpabuf_head(wpa_s->pending_eapol_rx),
1700                                 wpabuf_len(wpa_s->pending_eapol_rx));
1701                 }
1702                 wpabuf_free(wpa_s->pending_eapol_rx);
1703                 wpa_s->pending_eapol_rx = NULL;
1704         }
1705
1706         if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1707              wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
1708             wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1709             capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
1710                 /* Set static WEP keys again */
1711                 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
1712         }
1713
1714 #ifdef CONFIG_IBSS_RSN
1715         if (wpa_s->current_ssid &&
1716             wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
1717             wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
1718             wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
1719             wpa_s->ibss_rsn == NULL) {
1720                 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
1721                 if (!wpa_s->ibss_rsn) {
1722                         wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
1723                         wpa_supplicant_deauthenticate(
1724                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1725                         return;
1726                 }
1727
1728                 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
1729         }
1730 #endif /* CONFIG_IBSS_RSN */
1731 }
1732
1733
1734 static int disconnect_reason_recoverable(u16 reason_code)
1735 {
1736         return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
1737                 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
1738                 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
1739 }
1740
1741
1742 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
1743                                           u16 reason_code,
1744                                           int locally_generated)
1745 {
1746         const u8 *bssid;
1747         int authenticating;
1748         u8 prev_pending_bssid[ETH_ALEN];
1749         struct wpa_bss *fast_reconnect = NULL;
1750         struct wpa_ssid *fast_reconnect_ssid = NULL;
1751
1752         authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
1753         os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
1754
1755         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1756                 /*
1757                  * At least Host AP driver and a Prism3 card seemed to be
1758                  * generating streams of disconnected events when configuring
1759                  * IBSS for WPA-None. Ignore them for now.
1760                  */
1761                 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
1762                         "IBSS/WPA-None mode");
1763                 return;
1764         }
1765
1766         if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
1767             wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1768                 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
1769                         "pre-shared key may be incorrect");
1770         }
1771         if (!wpa_s->auto_reconnect_disabled ||
1772             wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
1773                 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
1774                         "reconnect (wps=%d wpa_state=%d)",
1775                         wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
1776                         wpa_s->wpa_state);
1777                 if (wpa_s->wpa_state == WPA_COMPLETED &&
1778                     wpa_s->current_ssid &&
1779                     wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
1780                     !locally_generated &&
1781                     disconnect_reason_recoverable(reason_code)) {
1782                         /*
1783                          * It looks like the AP has dropped association with
1784                          * us, but could allow us to get back in. Try to
1785                          * reconnect to the same BSS without full scan to save
1786                          * time for some common cases.
1787                          */
1788                         fast_reconnect = wpa_s->current_bss;
1789                         fast_reconnect_ssid = wpa_s->current_ssid;
1790                 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
1791 #ifdef ANDROID
1792                         wpa_supplicant_req_scan(wpa_s, 0, 500000);
1793 #else
1794                         wpa_supplicant_req_scan(wpa_s, 0, 100000);
1795 #endif
1796                 else
1797                         wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
1798                                 "immediate scan");
1799         } else {
1800                 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
1801                         "try to re-connect");
1802                 wpa_s->reassociate = 0;
1803                 wpa_s->disconnected = 1;
1804                 wpa_supplicant_cancel_sched_scan(wpa_s);
1805         }
1806         bssid = wpa_s->bssid;
1807         if (is_zero_ether_addr(bssid))
1808                 bssid = wpa_s->pending_bssid;
1809         if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
1810                 wpas_connection_failed(wpa_s, bssid);
1811         wpa_sm_notify_disassoc(wpa_s->wpa);
1812         if (locally_generated)
1813                 wpa_s->disconnect_reason = -reason_code;
1814         else
1815                 wpa_s->disconnect_reason = reason_code;
1816         wpas_notify_disconnect_reason(wpa_s);
1817         if (!is_zero_ether_addr(bssid) ||
1818             wpa_s->wpa_state >= WPA_AUTHENTICATING) {
1819                 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
1820                         " reason=%d%s",
1821                         MAC2STR(bssid), reason_code,
1822                         locally_generated ? " locally_generated=1" : "");
1823         }
1824         if (wpa_supplicant_dynamic_keys(wpa_s)) {
1825                 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
1826                 wpa_s->keys_cleared = 0;
1827                 wpa_clear_keys(wpa_s, wpa_s->bssid);
1828         }
1829         wpa_supplicant_mark_disassoc(wpa_s);
1830
1831         if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1832                 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
1833
1834         if (fast_reconnect) {
1835 #ifndef CONFIG_NO_SCAN_PROCESSING
1836                 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
1837                 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
1838                                            fast_reconnect_ssid) < 0) {
1839                         /* Recover through full scan */
1840                         wpa_supplicant_req_scan(wpa_s, 0, 100000);
1841                 }
1842 #endif /* CONFIG_NO_SCAN_PROCESSING */
1843         }
1844 }
1845
1846
1847 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1848 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
1849 {
1850         struct wpa_supplicant *wpa_s = eloop_ctx;
1851
1852         if (!wpa_s->pending_mic_error_report)
1853                 return;
1854
1855         wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
1856         wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
1857         wpa_s->pending_mic_error_report = 0;
1858 }
1859 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1860
1861
1862 static void
1863 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
1864                                          union wpa_event_data *data)
1865 {
1866         int pairwise;
1867         struct os_time t;
1868
1869         wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
1870         pairwise = (data && data->michael_mic_failure.unicast);
1871         os_get_time(&t);
1872         if ((wpa_s->last_michael_mic_error &&
1873              t.sec - wpa_s->last_michael_mic_error <= 60) ||
1874             wpa_s->pending_mic_error_report) {
1875                 if (wpa_s->pending_mic_error_report) {
1876                         /*
1877                          * Send the pending MIC error report immediately since
1878                          * we are going to start countermeasures and AP better
1879                          * do the same.
1880                          */
1881                         wpa_sm_key_request(wpa_s->wpa, 1,
1882                                            wpa_s->pending_mic_error_pairwise);
1883                 }
1884
1885                 /* Send the new MIC error report immediately since we are going
1886                  * to start countermeasures and AP better do the same.
1887                  */
1888                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1889
1890                 /* initialize countermeasures */
1891                 wpa_s->countermeasures = 1;
1892
1893                 wpa_blacklist_add(wpa_s, wpa_s->bssid);
1894
1895                 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
1896
1897                 /*
1898                  * Need to wait for completion of request frame. We do not get
1899                  * any callback for the message completion, so just wait a
1900                  * short while and hope for the best. */
1901                 os_sleep(0, 10000);
1902
1903                 wpa_drv_set_countermeasures(wpa_s, 1);
1904                 wpa_supplicant_deauthenticate(wpa_s,
1905                                               WLAN_REASON_MICHAEL_MIC_FAILURE);
1906                 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
1907                                      wpa_s, NULL);
1908                 eloop_register_timeout(60, 0,
1909                                        wpa_supplicant_stop_countermeasures,
1910                                        wpa_s, NULL);
1911                 /* TODO: mark the AP rejected for 60 second. STA is
1912                  * allowed to associate with another AP.. */
1913         } else {
1914 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1915                 if (wpa_s->mic_errors_seen) {
1916                         /*
1917                          * Reduce the effectiveness of Michael MIC error
1918                          * reports as a means for attacking against TKIP if
1919                          * more than one MIC failure is noticed with the same
1920                          * PTK. We delay the transmission of the reports by a
1921                          * random time between 0 and 60 seconds in order to
1922                          * force the attacker wait 60 seconds before getting
1923                          * the information on whether a frame resulted in a MIC
1924                          * failure.
1925                          */
1926                         u8 rval[4];
1927                         int sec;
1928
1929                         if (os_get_random(rval, sizeof(rval)) < 0)
1930                                 sec = os_random() % 60;
1931                         else
1932                                 sec = WPA_GET_BE32(rval) % 60;
1933                         wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
1934                                 "report %d seconds", sec);
1935                         wpa_s->pending_mic_error_report = 1;
1936                         wpa_s->pending_mic_error_pairwise = pairwise;
1937                         eloop_cancel_timeout(
1938                                 wpa_supplicant_delayed_mic_error_report,
1939                                 wpa_s, NULL);
1940                         eloop_register_timeout(
1941                                 sec, os_random() % 1000000,
1942                                 wpa_supplicant_delayed_mic_error_report,
1943                                 wpa_s, NULL);
1944                 } else {
1945                         wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1946                 }
1947 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1948                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1949 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1950         }
1951         wpa_s->last_michael_mic_error = t.sec;
1952         wpa_s->mic_errors_seen++;
1953 }
1954
1955
1956 #ifdef CONFIG_TERMINATE_ONLASTIF
1957 static int any_interfaces(struct wpa_supplicant *head)
1958 {
1959         struct wpa_supplicant *wpa_s;
1960
1961         for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
1962                 if (!wpa_s->interface_removed)
1963                         return 1;
1964         return 0;
1965 }
1966 #endif /* CONFIG_TERMINATE_ONLASTIF */
1967
1968
1969 static void
1970 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
1971                                       union wpa_event_data *data)
1972 {
1973         if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
1974                 return;
1975
1976         switch (data->interface_status.ievent) {
1977         case EVENT_INTERFACE_ADDED:
1978                 if (!wpa_s->interface_removed)
1979                         break;
1980                 wpa_s->interface_removed = 0;
1981                 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
1982                 if (wpa_supplicant_driver_init(wpa_s) < 0) {
1983                         wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
1984                                 "driver after interface was added");
1985                 }
1986                 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1987                 break;
1988         case EVENT_INTERFACE_REMOVED:
1989                 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
1990                 wpa_s->interface_removed = 1;
1991                 wpa_supplicant_mark_disassoc(wpa_s);
1992                 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
1993                 l2_packet_deinit(wpa_s->l2);
1994                 wpa_s->l2 = NULL;
1995 #ifdef CONFIG_IBSS_RSN
1996                 ibss_rsn_deinit(wpa_s->ibss_rsn);
1997                 wpa_s->ibss_rsn = NULL;
1998 #endif /* CONFIG_IBSS_RSN */
1999 #ifdef CONFIG_TERMINATE_ONLASTIF
2000                 /* check if last interface */
2001                 if (!any_interfaces(wpa_s->global->ifaces))
2002                         eloop_terminate();
2003 #endif /* CONFIG_TERMINATE_ONLASTIF */
2004                 break;
2005         }
2006 }
2007
2008
2009 #ifdef CONFIG_PEERKEY
2010 static void
2011 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2012                               union wpa_event_data *data)
2013 {
2014         if (data == NULL)
2015                 return;
2016         wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2017 }
2018 #endif /* CONFIG_PEERKEY */
2019
2020
2021 #ifdef CONFIG_TDLS
2022 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2023                                       union wpa_event_data *data)
2024 {
2025         if (data == NULL)
2026                 return;
2027         switch (data->tdls.oper) {
2028         case TDLS_REQUEST_SETUP:
2029                 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2030                 break;
2031         case TDLS_REQUEST_TEARDOWN:
2032                 wpa_tdls_send_teardown(wpa_s->wpa, data->tdls.peer,
2033                                        data->tdls.reason_code);
2034                 break;
2035         }
2036 }
2037 #endif /* CONFIG_TDLS */
2038
2039
2040 #ifdef CONFIG_IEEE80211R
2041 static void
2042 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2043                                  union wpa_event_data *data)
2044 {
2045         if (data == NULL)
2046                 return;
2047
2048         if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2049                                     data->ft_ies.ies_len,
2050                                     data->ft_ies.ft_action,
2051                                     data->ft_ies.target_ap,
2052                                     data->ft_ies.ric_ies,
2053                                     data->ft_ies.ric_ies_len) < 0) {
2054                 /* TODO: prevent MLME/driver from trying to associate? */
2055         }
2056 }
2057 #endif /* CONFIG_IEEE80211R */
2058
2059
2060 #ifdef CONFIG_IBSS_RSN
2061 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2062                                                 union wpa_event_data *data)
2063 {
2064         struct wpa_ssid *ssid;
2065         if (wpa_s->wpa_state < WPA_ASSOCIATED)
2066                 return;
2067         if (data == NULL)
2068                 return;
2069         ssid = wpa_s->current_ssid;
2070         if (ssid == NULL)
2071                 return;
2072         if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2073                 return;
2074
2075         ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2076 }
2077 #endif /* CONFIG_IBSS_RSN */
2078
2079
2080 #ifdef CONFIG_IEEE80211R
2081 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2082                          size_t len)
2083 {
2084         const u8 *sta_addr, *target_ap_addr;
2085         u16 status;
2086
2087         wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2088         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2089                 return; /* only SME case supported for now */
2090         if (len < 1 + 2 * ETH_ALEN + 2)
2091                 return;
2092         if (data[0] != 2)
2093                 return; /* Only FT Action Response is supported for now */
2094         sta_addr = data + 1;
2095         target_ap_addr = data + 1 + ETH_ALEN;
2096         status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2097         wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2098                 MACSTR " TargetAP " MACSTR " status %u",
2099                 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2100
2101         if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2102                 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2103                         " in FT Action Response", MAC2STR(sta_addr));
2104                 return;
2105         }
2106
2107         if (status) {
2108                 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2109                         "failure (status code %d)", status);
2110                 /* TODO: report error to FT code(?) */
2111                 return;
2112         }
2113
2114         if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2115                                     len - (1 + 2 * ETH_ALEN + 2), 1,
2116                                     target_ap_addr, NULL, 0) < 0)
2117                 return;
2118
2119 #ifdef CONFIG_SME
2120         {
2121                 struct wpa_bss *bss;
2122                 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2123                 if (bss)
2124                         wpa_s->sme.freq = bss->freq;
2125                 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2126                 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2127                               WLAN_AUTH_FT);
2128         }
2129 #endif /* CONFIG_SME */
2130 }
2131 #endif /* CONFIG_IEEE80211R */
2132
2133
2134 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2135                                                struct unprot_deauth *e)
2136 {
2137 #ifdef CONFIG_IEEE80211W
2138         wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2139                    "dropped: " MACSTR " -> " MACSTR
2140                    " (reason code %u)",
2141                    MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2142         sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2143 #endif /* CONFIG_IEEE80211W */
2144 }
2145
2146
2147 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2148                                                  struct unprot_disassoc *e)
2149 {
2150 #ifdef CONFIG_IEEE80211W
2151         wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2152                    "dropped: " MACSTR " -> " MACSTR
2153                    " (reason code %u)",
2154                    MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2155         sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2156 #endif /* CONFIG_IEEE80211W */
2157 }
2158
2159
2160 static void wnm_action_rx(struct wpa_supplicant *wpa_s, struct rx_action *rx)
2161 {
2162         u8 action, mode;
2163         const u8 *pos, *end;
2164
2165         if (rx->data == NULL || rx->len == 0)
2166                 return;
2167
2168         pos = rx->data;
2169         end = pos + rx->len;
2170         action = *pos++;
2171
2172         wpa_printf(MSG_DEBUG, "WNM: RX action %u from " MACSTR,
2173                    action, MAC2STR(rx->sa));
2174         switch (action) {
2175         case WNM_BSS_TRANS_MGMT_REQ:
2176                 if (pos + 5 > end)
2177                         break;
2178                 wpa_printf(MSG_DEBUG, "WNM: BSS Transition Management "
2179                            "Request: dialog_token=%u request_mode=0x%x "
2180                            "disassoc_timer=%u validity_interval=%u",
2181                            pos[0], pos[1], WPA_GET_LE16(pos + 2), pos[4]);
2182                 mode = pos[1];
2183                 pos += 5;
2184                 if (mode & 0x08)
2185                         pos += 12; /* BSS Termination Duration */
2186                 if (mode & 0x10) {
2187                         char url[256];
2188                         if (pos + 1 > end || pos + 1 + pos[0] > end) {
2189                                 wpa_printf(MSG_DEBUG, "WNM: Invalid BSS "
2190                                            "Transition Management Request "
2191                                            "(URL)");
2192                                 break;
2193                         }
2194                         os_memcpy(url, pos + 1, pos[0]);
2195                         url[pos[0]] = '\0';
2196                         wpa_msg(wpa_s, MSG_INFO, "WNM: ESS Disassociation "
2197                                 "Imminent - session_info_url=%s", url);
2198                 }
2199                 break;
2200         }
2201 }
2202
2203
2204 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
2205                           union wpa_event_data *data)
2206 {
2207         struct wpa_supplicant *wpa_s = ctx;
2208         u16 reason_code = 0;
2209         int locally_generated = 0;
2210
2211         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
2212             event != EVENT_INTERFACE_ENABLED &&
2213             event != EVENT_INTERFACE_STATUS &&
2214             event != EVENT_SCHED_SCAN_STOPPED) {
2215                 wpa_dbg(wpa_s, MSG_DEBUG,
2216                         "Ignore event %s (%d) while interface is disabled",
2217                         event_to_string(event), event);
2218                 return;
2219         }
2220
2221 #ifndef CONFIG_NO_STDOUT_DEBUG
2222 {
2223         int level = MSG_DEBUG;
2224
2225         if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
2226                 const struct ieee80211_hdr *hdr;
2227                 u16 fc;
2228                 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
2229                 fc = le_to_host16(hdr->frame_control);
2230                 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
2231                     WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
2232                         level = MSG_EXCESSIVE;
2233         }
2234
2235         wpa_dbg(wpa_s, level, "Event %s (%d) received",
2236                 event_to_string(event), event);
2237 }
2238 #endif /* CONFIG_NO_STDOUT_DEBUG */
2239
2240         switch (event) {
2241         case EVENT_AUTH:
2242                 sme_event_auth(wpa_s, data);
2243                 break;
2244         case EVENT_ASSOC:
2245                 wpa_supplicant_event_assoc(wpa_s, data);
2246                 break;
2247         case EVENT_DISASSOC:
2248                 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2249                 if (data) {
2250                         wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2251                                 data->disassoc_info.reason_code,
2252                                 data->disassoc_info.locally_generated ?
2253                                 " (locally generated)" : "");
2254                         if (data->disassoc_info.addr)
2255                                 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2256                                         MAC2STR(data->disassoc_info.addr));
2257                 }
2258 #ifdef CONFIG_AP
2259                 if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
2260                         hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2261                                                data->disassoc_info.addr);
2262                         break;
2263                 }
2264                 if (wpa_s->ap_iface) {
2265                         wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in "
2266                                 "AP mode");
2267                         break;
2268                 }
2269 #endif /* CONFIG_AP */
2270                 if (data) {
2271                         reason_code = data->disassoc_info.reason_code;
2272                         locally_generated =
2273                                 data->disassoc_info.locally_generated;
2274                         wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2275                                     data->disassoc_info.ie,
2276                                     data->disassoc_info.ie_len);
2277 #ifdef CONFIG_P2P
2278                         wpas_p2p_disassoc_notif(
2279                                 wpa_s, data->disassoc_info.addr, reason_code,
2280                                 data->disassoc_info.ie,
2281                                 data->disassoc_info.ie_len,
2282                                 locally_generated);
2283 #endif /* CONFIG_P2P */
2284                 }
2285                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2286                         sme_event_disassoc(wpa_s, data);
2287                 /* fall through */
2288         case EVENT_DEAUTH:
2289                 if (event == EVENT_DEAUTH) {
2290                         wpa_dbg(wpa_s, MSG_DEBUG,
2291                                 "Deauthentication notification");
2292                         if (data) {
2293                                 reason_code = data->deauth_info.reason_code;
2294                                 locally_generated =
2295                                         data->deauth_info.locally_generated;
2296                                 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2297                                         data->deauth_info.reason_code,
2298                                         data->deauth_info.locally_generated ?
2299                                         " (locally generated)" : "");
2300                                 if (data->deauth_info.addr) {
2301                                         wpa_dbg(wpa_s, MSG_DEBUG, " * address "
2302                                                 MACSTR,
2303                                                 MAC2STR(data->deauth_info.
2304                                                         addr));
2305                                 }
2306                                 wpa_hexdump(MSG_DEBUG,
2307                                             "Deauthentication frame IE(s)",
2308                                             data->deauth_info.ie,
2309                                             data->deauth_info.ie_len);
2310                         }
2311                 }
2312 #ifdef CONFIG_AP
2313                 if (wpa_s->ap_iface && data && data->deauth_info.addr) {
2314                         hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
2315                                                data->deauth_info.addr);
2316                         break;
2317                 }
2318                 if (wpa_s->ap_iface) {
2319                         wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in "
2320                                 "AP mode");
2321                         break;
2322                 }
2323 #endif /* CONFIG_AP */
2324                 wpa_supplicant_event_disassoc(wpa_s, reason_code,
2325                                               locally_generated);
2326 #ifdef CONFIG_P2P
2327                 if (event == EVENT_DEAUTH && data) {
2328                         wpas_p2p_deauth_notif(wpa_s, data->deauth_info.addr,
2329                                               reason_code,
2330                                               data->deauth_info.ie,
2331                                               data->deauth_info.ie_len,
2332                                               locally_generated);
2333                 }
2334 #endif /* CONFIG_P2P */
2335                 break;
2336         case EVENT_MICHAEL_MIC_FAILURE:
2337                 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
2338                 break;
2339 #ifndef CONFIG_NO_SCAN_PROCESSING
2340         case EVENT_SCAN_RESULTS:
2341                 wpa_supplicant_event_scan_results(wpa_s, data);
2342                 break;
2343 #endif /* CONFIG_NO_SCAN_PROCESSING */
2344         case EVENT_ASSOCINFO:
2345                 wpa_supplicant_event_associnfo(wpa_s, data);
2346                 break;
2347         case EVENT_INTERFACE_STATUS:
2348                 wpa_supplicant_event_interface_status(wpa_s, data);
2349                 break;
2350         case EVENT_PMKID_CANDIDATE:
2351                 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
2352                 break;
2353 #ifdef CONFIG_PEERKEY
2354         case EVENT_STKSTART:
2355                 wpa_supplicant_event_stkstart(wpa_s, data);
2356                 break;
2357 #endif /* CONFIG_PEERKEY */
2358 #ifdef CONFIG_TDLS
2359         case EVENT_TDLS:
2360                 wpa_supplicant_event_tdls(wpa_s, data);
2361                 break;
2362 #endif /* CONFIG_TDLS */
2363 #ifdef CONFIG_IEEE80211R
2364         case EVENT_FT_RESPONSE:
2365                 wpa_supplicant_event_ft_response(wpa_s, data);
2366                 break;
2367 #endif /* CONFIG_IEEE80211R */
2368 #ifdef CONFIG_IBSS_RSN
2369         case EVENT_IBSS_RSN_START:
2370                 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
2371                 break;
2372 #endif /* CONFIG_IBSS_RSN */
2373         case EVENT_ASSOC_REJECT:
2374                 if (data->assoc_reject.bssid)
2375                         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2376                                 "bssid=" MACSTR " status_code=%u",
2377                                 MAC2STR(data->assoc_reject.bssid),
2378                                 data->assoc_reject.status_code);
2379                 else
2380                         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
2381                                 "status_code=%u",
2382                                 data->assoc_reject.status_code);
2383                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2384                         sme_event_assoc_reject(wpa_s, data);
2385 #ifdef ANDROID_P2P
2386                 else {
2387
2388                         if(!wpa_s->current_ssid) {
2389                                 wpa_printf(MSG_ERROR, "current_ssid == NULL");
2390                                 break;
2391                         }
2392                         /* If assoc reject is reported by the driver, then avoid
2393                          * waiting for  the authentication timeout. Cancel the
2394                          * authentication timeout and retry the assoc.
2395                          */
2396                         if(wpa_s->current_ssid->assoc_retry++ < 5) {
2397                                 wpa_printf(MSG_ERROR, "Retrying assoc: %d ",
2398                                                                 wpa_s->current_ssid->assoc_retry);
2399                                 wpa_supplicant_cancel_auth_timeout(wpa_s);
2400
2401                                 /* Clear the states */
2402                                 wpa_sm_notify_disassoc(wpa_s->wpa);
2403                                 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2404
2405                                 wpa_s->reassociate = 1;
2406                                 wpa_supplicant_req_scan(wpa_s, 1, 0);
2407                         } else {
2408                                 /* If we ASSOC_REJECT's hits threshold, disable the
2409                                  * network
2410                                  */
2411                                 wpa_printf(MSG_ERROR, "Assoc retry threshold reached. "
2412                                 "Disabling the network");
2413                                 wpa_supplicant_disable_network(wpa_s, wpa_s->current_ssid);
2414 #ifdef CONFIG_P2P
2415                                 if(wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)
2416                                         wpas_p2p_group_remove(wpa_s, wpa_s->ifname);
2417 #endif
2418                         }
2419                 }
2420 #endif /* ANDROID_P2P */
2421                 break;
2422         case EVENT_AUTH_TIMED_OUT:
2423                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2424                         sme_event_auth_timed_out(wpa_s, data);
2425                 break;
2426         case EVENT_ASSOC_TIMED_OUT:
2427                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2428                         sme_event_assoc_timed_out(wpa_s, data);
2429                 break;
2430         case EVENT_TX_STATUS:
2431                 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
2432                         " type=%d stype=%d",
2433                         MAC2STR(data->tx_status.dst),
2434                         data->tx_status.type, data->tx_status.stype);
2435 #ifdef CONFIG_AP
2436                 if (wpa_s->ap_iface == NULL) {
2437 #ifdef CONFIG_OFFCHANNEL
2438                         if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2439                             data->tx_status.stype == WLAN_FC_STYPE_ACTION)
2440                                 offchannel_send_action_tx_status(
2441                                         wpa_s, data->tx_status.dst,
2442                                         data->tx_status.data,
2443                                         data->tx_status.data_len,
2444                                         data->tx_status.ack ?
2445                                         OFFCHANNEL_SEND_ACTION_SUCCESS :
2446                                         OFFCHANNEL_SEND_ACTION_NO_ACK);
2447 #endif /* CONFIG_OFFCHANNEL */
2448                         break;
2449                 }
2450 #endif /* CONFIG_AP */
2451 #ifdef CONFIG_OFFCHANNEL
2452                 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
2453                         MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
2454                 /*
2455                  * Catch TX status events for Action frames we sent via group
2456                  * interface in GO mode.
2457                  */
2458                 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
2459                     data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
2460                     os_memcmp(wpa_s->parent->pending_action_dst,
2461                               data->tx_status.dst, ETH_ALEN) == 0) {
2462                         offchannel_send_action_tx_status(
2463                                 wpa_s->parent, data->tx_status.dst,
2464                                 data->tx_status.data,
2465                                 data->tx_status.data_len,
2466                                 data->tx_status.ack ?
2467                                 OFFCHANNEL_SEND_ACTION_SUCCESS :
2468                                 OFFCHANNEL_SEND_ACTION_NO_ACK);
2469                         break;
2470                 }
2471 #endif /* CONFIG_OFFCHANNEL */
2472 #ifdef CONFIG_AP
2473                 switch (data->tx_status.type) {
2474                 case WLAN_FC_TYPE_MGMT:
2475                         ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
2476                                       data->tx_status.data_len,
2477                                       data->tx_status.stype,
2478                                       data->tx_status.ack);
2479                         break;
2480                 case WLAN_FC_TYPE_DATA:
2481                         ap_tx_status(wpa_s, data->tx_status.dst,
2482                                      data->tx_status.data,
2483                                      data->tx_status.data_len,
2484                                      data->tx_status.ack);
2485                         break;
2486                 }
2487 #endif /* CONFIG_AP */
2488                 break;
2489 #ifdef CONFIG_AP
2490         case EVENT_EAPOL_TX_STATUS:
2491                 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
2492                                    data->eapol_tx_status.data,
2493                                    data->eapol_tx_status.data_len,
2494                                    data->eapol_tx_status.ack);
2495                 break;
2496         case EVENT_DRIVER_CLIENT_POLL_OK:
2497                 ap_client_poll_ok(wpa_s, data->client_poll.addr);
2498                 break;
2499         case EVENT_RX_FROM_UNKNOWN:
2500                 if (wpa_s->ap_iface == NULL)
2501                         break;
2502                 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
2503                                        data->rx_from_unknown.wds);
2504                 break;
2505         case EVENT_CH_SWITCH:
2506                 if (!data)
2507                         break;
2508                 if (!wpa_s->ap_iface) {
2509                         wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch "
2510                                 "event in non-AP mode");
2511                         break;
2512                 }
2513
2514 #ifdef CONFIG_AP
2515                 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
2516                                   data->ch_switch.ht_enabled,
2517                                   data->ch_switch.ch_offset);
2518 #endif /* CONFIG_AP */
2519                 break;
2520         case EVENT_RX_MGMT: {
2521                 u16 fc, stype;
2522                 const struct ieee80211_mgmt *mgmt;
2523
2524                 mgmt = (const struct ieee80211_mgmt *)
2525                         data->rx_mgmt.frame;
2526                 fc = le_to_host16(mgmt->frame_control);
2527                 stype = WLAN_FC_GET_STYPE(fc);
2528
2529                 if (wpa_s->ap_iface == NULL) {
2530 #ifdef CONFIG_P2P
2531                         if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2532                             data->rx_mgmt.frame_len > 24) {
2533                                 const u8 *src = mgmt->sa;
2534                                 const u8 *ie = mgmt->u.probe_req.variable;
2535                                 size_t ie_len = data->rx_mgmt.frame_len -
2536                                         (mgmt->u.probe_req.variable -
2537                                          data->rx_mgmt.frame);
2538                                 wpas_p2p_probe_req_rx(
2539                                         wpa_s, src, mgmt->da,
2540                                         mgmt->bssid, ie, ie_len,
2541                                         data->rx_mgmt.ssi_signal);
2542                                 break;
2543                         }
2544 #endif /* CONFIG_P2P */
2545                         wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
2546                                 "management frame in non-AP mode");
2547                         break;
2548                 }
2549
2550                 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
2551                     data->rx_mgmt.frame_len > 24) {
2552                         const u8 *ie = mgmt->u.probe_req.variable;
2553                         size_t ie_len = data->rx_mgmt.frame_len -
2554                                 (mgmt->u.probe_req.variable -
2555                                  data->rx_mgmt.frame);
2556
2557                         wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
2558                                          mgmt->bssid, ie, ie_len,
2559                                          data->rx_mgmt.ssi_signal);
2560                 }
2561
2562                 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
2563                 break;
2564                 }
2565 #endif /* CONFIG_AP */
2566         case EVENT_RX_ACTION:
2567                 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2568                         " Category=%u DataLen=%d freq=%d MHz",
2569                         MAC2STR(data->rx_action.sa),
2570                         data->rx_action.category, (int) data->rx_action.len,
2571                         data->rx_action.freq);
2572 #ifdef CONFIG_IEEE80211R
2573                 if (data->rx_action.category == WLAN_ACTION_FT) {
2574                         ft_rx_action(wpa_s, data->rx_action.data,
2575                                      data->rx_action.len);
2576                         break;
2577                 }
2578 #endif /* CONFIG_IEEE80211R */
2579 #ifdef CONFIG_IEEE80211W
2580 #ifdef CONFIG_SME
2581                 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) {
2582                         sme_sa_query_rx(wpa_s, data->rx_action.sa,
2583                                         data->rx_action.data,
2584                                         data->rx_action.len);
2585                         break;
2586                 }
2587 #endif /* CONFIG_SME */
2588 #endif /* CONFIG_IEEE80211W */
2589 #ifdef CONFIG_GAS
2590                 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2591                     gas_query_rx(wpa_s->gas, data->rx_action.da,
2592                                  data->rx_action.sa, data->rx_action.bssid,
2593                                  data->rx_action.data, data->rx_action.len,
2594                                  data->rx_action.freq) == 0)
2595                         break;
2596 #endif /* CONFIG_GAS */
2597                 if (data->rx_action.category == WLAN_ACTION_WNM) {
2598                         wnm_action_rx(wpa_s, &data->rx_action);
2599                         break;
2600                 }
2601 #ifdef CONFIG_TDLS
2602                 if (data->rx_action.category == WLAN_ACTION_PUBLIC &&
2603                     data->rx_action.len >= 4 &&
2604                     data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
2605                         wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery "
2606                                 "Response from " MACSTR,
2607                                 MAC2STR(data->rx_action.sa));
2608                         break;
2609                 }
2610 #endif /* CONFIG_TDLS */
2611 #ifdef CONFIG_P2P
2612                 wpas_p2p_rx_action(wpa_s, data->rx_action.da,
2613                                    data->rx_action.sa,
2614                                    data->rx_action.bssid,
2615                                    data->rx_action.category,
2616                                    data->rx_action.data,
2617                                    data->rx_action.len, data->rx_action.freq);
2618 #endif /* CONFIG_P2P */
2619                 break;
2620         case EVENT_RX_PROBE_REQ:
2621                 if (data->rx_probe_req.sa == NULL ||
2622                     data->rx_probe_req.ie == NULL)
2623                         break;
2624 #ifdef CONFIG_AP
2625                 if (wpa_s->ap_iface) {
2626                         hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
2627                                              data->rx_probe_req.sa,
2628                                              data->rx_probe_req.da,
2629                                              data->rx_probe_req.bssid,
2630                                              data->rx_probe_req.ie,
2631                                              data->rx_probe_req.ie_len,
2632                                              data->rx_probe_req.ssi_signal);
2633                         break;
2634                 }
2635 #endif /* CONFIG_AP */
2636 #ifdef CONFIG_P2P
2637                 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
2638                                       data->rx_probe_req.da,
2639                                       data->rx_probe_req.bssid,
2640                                       data->rx_probe_req.ie,
2641                                       data->rx_probe_req.ie_len,
2642                                       data->rx_probe_req.ssi_signal);
2643 #endif /* CONFIG_P2P */
2644                 break;
2645         case EVENT_REMAIN_ON_CHANNEL:
2646 #ifdef CONFIG_OFFCHANNEL
2647                 offchannel_remain_on_channel_cb(
2648                         wpa_s, data->remain_on_channel.freq,
2649                         data->remain_on_channel.duration);
2650 #endif /* CONFIG_OFFCHANNEL */
2651 #ifdef CONFIG_P2P
2652                 wpas_p2p_remain_on_channel_cb(
2653                         wpa_s, data->remain_on_channel.freq,
2654                         data->remain_on_channel.duration);
2655 #endif /* CONFIG_P2P */
2656                 break;
2657         case EVENT_CANCEL_REMAIN_ON_CHANNEL:
2658 #ifdef CONFIG_OFFCHANNEL
2659                 offchannel_cancel_remain_on_channel_cb(
2660                         wpa_s, data->remain_on_channel.freq);
2661 #endif /* CONFIG_OFFCHANNEL */
2662 #ifdef CONFIG_P2P
2663                 wpas_p2p_cancel_remain_on_channel_cb(
2664                         wpa_s, data->remain_on_channel.freq);
2665 #endif /* CONFIG_P2P */
2666                 break;
2667 #ifdef CONFIG_P2P
2668         case EVENT_P2P_DEV_FOUND: {
2669                 struct p2p_peer_info peer_info;
2670
2671                 os_memset(&peer_info, 0, sizeof(peer_info));
2672                 if (data->p2p_dev_found.dev_addr)
2673                         os_memcpy(peer_info.p2p_device_addr,
2674                                   data->p2p_dev_found.dev_addr, ETH_ALEN);
2675                 if (data->p2p_dev_found.pri_dev_type)
2676                         os_memcpy(peer_info.pri_dev_type,
2677                                   data->p2p_dev_found.pri_dev_type,
2678                                   sizeof(peer_info.pri_dev_type));
2679                 if (data->p2p_dev_found.dev_name)
2680                         os_strlcpy(peer_info.device_name,
2681                                    data->p2p_dev_found.dev_name,
2682                                    sizeof(peer_info.device_name));
2683                 peer_info.config_methods = data->p2p_dev_found.config_methods;
2684                 peer_info.dev_capab = data->p2p_dev_found.dev_capab;
2685                 peer_info.group_capab = data->p2p_dev_found.group_capab;
2686
2687                 /*
2688                  * FIX: new_device=1 is not necessarily correct. We should
2689                  * maintain a P2P peer database in wpa_supplicant and update
2690                  * this information based on whether the peer is truly new.
2691                  */
2692                 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1);
2693                 break;
2694                 }
2695         case EVENT_P2P_GO_NEG_REQ_RX:
2696                 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src,
2697                                    data->p2p_go_neg_req_rx.dev_passwd_id);
2698                 break;
2699         case EVENT_P2P_GO_NEG_COMPLETED:
2700                 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res);
2701                 break;
2702         case EVENT_P2P_PROV_DISC_REQUEST:
2703                 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer,
2704                                    data->p2p_prov_disc_req.config_methods,
2705                                    data->p2p_prov_disc_req.dev_addr,
2706                                    data->p2p_prov_disc_req.pri_dev_type,
2707                                    data->p2p_prov_disc_req.dev_name,
2708                                    data->p2p_prov_disc_req.supp_config_methods,
2709                                    data->p2p_prov_disc_req.dev_capab,
2710                                    data->p2p_prov_disc_req.group_capab,
2711                                    NULL, 0);
2712                 break;
2713         case EVENT_P2P_PROV_DISC_RESPONSE:
2714                 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer,
2715                                     data->p2p_prov_disc_resp.config_methods);
2716                 break;
2717         case EVENT_P2P_SD_REQUEST:
2718                 wpas_sd_request(wpa_s, data->p2p_sd_req.freq,
2719                                 data->p2p_sd_req.sa,
2720                                 data->p2p_sd_req.dialog_token,
2721                                 data->p2p_sd_req.update_indic,
2722                                 data->p2p_sd_req.tlvs,
2723                                 data->p2p_sd_req.tlvs_len);
2724                 break;
2725         case EVENT_P2P_SD_RESPONSE:
2726                 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa,
2727                                  data->p2p_sd_resp.update_indic,
2728                                  data->p2p_sd_resp.tlvs,
2729                                  data->p2p_sd_resp.tlvs_len);
2730                 break;
2731 #endif /* CONFIG_P2P */
2732         case EVENT_EAPOL_RX:
2733                 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
2734                                         data->eapol_rx.data,
2735                                         data->eapol_rx.data_len);
2736                 break;
2737         case EVENT_SIGNAL_CHANGE:
2738                 bgscan_notify_signal_change(
2739                         wpa_s, data->signal_change.above_threshold,
2740                         data->signal_change.current_signal,
2741                         data->signal_change.current_noise,
2742                         data->signal_change.current_txrate);
2743                 break;
2744         case EVENT_INTERFACE_ENABLED:
2745                 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
2746                 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
2747                         wpa_supplicant_update_mac_addr(wpa_s);
2748 #ifdef CONFIG_AP
2749                         if (!wpa_s->ap_iface) {
2750                                 wpa_supplicant_set_state(wpa_s,
2751                                                          WPA_DISCONNECTED);
2752                                 wpa_supplicant_req_scan(wpa_s, 0, 0);
2753                         } else
2754                                 wpa_supplicant_set_state(wpa_s,
2755                                                          WPA_COMPLETED);
2756 #else /* CONFIG_AP */
2757                         wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2758                         wpa_supplicant_req_scan(wpa_s, 0, 0);
2759 #endif /* CONFIG_AP */
2760                 }
2761                 break;
2762         case EVENT_INTERFACE_DISABLED:
2763                 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
2764                 wpa_supplicant_mark_disassoc(wpa_s);
2765                 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2766                 break;
2767         case EVENT_CHANNEL_LIST_CHANGED:
2768                 if (wpa_s->drv_priv == NULL)
2769                         break; /* Ignore event during drv initialization */
2770
2771                 free_hw_features(wpa_s);
2772                 wpa_s->hw.modes = wpa_drv_get_hw_feature_data(
2773                         wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags);
2774
2775 #ifdef CONFIG_P2P
2776                 wpas_p2p_update_channel_list(wpa_s);
2777 #endif /* CONFIG_P2P */
2778                 break;
2779         case EVENT_INTERFACE_UNAVAILABLE:
2780 #ifdef CONFIG_P2P
2781                 wpas_p2p_interface_unavailable(wpa_s);
2782 #endif /* CONFIG_P2P */
2783                 break;
2784         case EVENT_BEST_CHANNEL:
2785                 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
2786                         "(%d %d %d)",
2787                         data->best_chan.freq_24, data->best_chan.freq_5,
2788                         data->best_chan.freq_overall);
2789                 wpa_s->best_24_freq = data->best_chan.freq_24;
2790                 wpa_s->best_5_freq = data->best_chan.freq_5;
2791                 wpa_s->best_overall_freq = data->best_chan.freq_overall;
2792 #ifdef CONFIG_P2P
2793                 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
2794                                               data->best_chan.freq_5,
2795                                               data->best_chan.freq_overall);
2796 #endif /* CONFIG_P2P */
2797                 break;
2798         case EVENT_UNPROT_DEAUTH:
2799                 wpa_supplicant_event_unprot_deauth(wpa_s,
2800                                                    &data->unprot_deauth);
2801                 break;
2802         case EVENT_UNPROT_DISASSOC:
2803                 wpa_supplicant_event_unprot_disassoc(wpa_s,
2804                                                      &data->unprot_disassoc);
2805                 break;
2806         case EVENT_STATION_LOW_ACK:
2807 #ifdef CONFIG_AP
2808                 if (wpa_s->ap_iface && data)
2809                         hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
2810                                                   data->low_ack.addr);
2811 #endif /* CONFIG_AP */
2812 #ifdef CONFIG_TDLS
2813                 if (data)
2814                         wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr);
2815 #endif /* CONFIG_TDLS */
2816                 break;
2817         case EVENT_IBSS_PEER_LOST:
2818 #ifdef CONFIG_IBSS_RSN
2819                 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
2820 #endif /* CONFIG_IBSS_RSN */
2821                 break;
2822         case EVENT_DRIVER_GTK_REKEY:
2823                 if (os_memcmp(data->driver_gtk_rekey.bssid,
2824                               wpa_s->bssid, ETH_ALEN))
2825                         break;
2826                 if (!wpa_s->wpa)
2827                         break;
2828                 wpa_sm_update_replay_ctr(wpa_s->wpa,
2829                                          data->driver_gtk_rekey.replay_ctr);
2830                 break;
2831         case EVENT_SCHED_SCAN_STOPPED:
2832                 wpa_s->sched_scanning = 0;
2833                 wpa_supplicant_notify_scanning(wpa_s, 0);
2834
2835                 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
2836                         break;
2837
2838                 /*
2839                  * If we timed out, start a new sched scan to continue
2840                  * searching for more SSIDs.
2841                  */
2842                 if (wpa_s->sched_scan_timed_out)
2843                         wpa_supplicant_req_sched_scan(wpa_s);
2844                 break;
2845         case EVENT_WPS_BUTTON_PUSHED:
2846 #ifdef CONFIG_WPS
2847                 wpas_wps_start_pbc(wpa_s, NULL, 0);
2848 #endif /* CONFIG_WPS */
2849                 break;
2850         default:
2851                 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
2852                 break;
2853         }
2854 }