wpa_supplicant/events.c

   1 /*
   2  * WPA Supplicant - Driver event processing
   3  * Copyright (c) 2003-2011, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #include "includes.h"
  16
  17 #include "common.h"
  18 #include "eapol_supp/eapol_supp_sm.h"
  19 #include "rsn_supp/wpa.h"
  20 #include "eloop.h"
  21 #include "config.h"
  22 #include "l2_packet/l2_packet.h"
  23 #include "wpa_supplicant_i.h"
  24 #include "driver_i.h"
  25 #include "pcsc_funcs.h"
  26 #include "rsn_supp/preauth.h"
  27 #include "rsn_supp/pmksa_cache.h"
  28 #include "common/wpa_ctrl.h"
  29 #include "eap_peer/eap.h"
  30 #include "ap/hostapd.h"
  31 #include "p2p/p2p.h"
  32 #include "notify.h"
  33 #include "common/ieee802_11_defs.h"
  34 #include "common/ieee802_11_common.h"
  35 #include "crypto/random.h"
  36 #include "blacklist.h"
  37 #include "wpas_glue.h"
  38 #include "wps_supplicant.h"
  39 #include "ibss_rsn.h"
  40 #include "sme.h"
  41 #include "p2p_supplicant.h"
  42 #include "bgscan.h"
  43 #include "ap.h"
  44 #include "bss.h"
  45 #include "mlme.h"
  46 #include "scan.h"
  47
  48
  49 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
  50 {
  51         struct wpa_ssid *ssid, *old_ssid;
  52
  53         if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
  54                 return 0;
  55
  56         wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
  57                 "information");
  58         ssid = wpa_supplicant_get_ssid(wpa_s);
  59         if (ssid == NULL) {
  60                 wpa_msg(wpa_s, MSG_INFO,
  61                         "No network configuration found for the current AP");
  62                 return -1;
  63         }
  64
  65         if (ssid->disabled) {
  66                 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
  67                 return -1;
  68         }
  69
  70         wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
  71                 "current AP");
  72         if (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
  73                               WPA_KEY_MGMT_WPA_NONE |
  74                               WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X |
  75                               WPA_KEY_MGMT_PSK_SHA256 |
  76                               WPA_KEY_MGMT_IEEE8021X_SHA256)) {
  77                 u8 wpa_ie[80];
  78                 size_t wpa_ie_len = sizeof(wpa_ie);
  79                 wpa_supplicant_set_suites(wpa_s, NULL, ssid,
  80                                           wpa_ie, &wpa_ie_len);
  81         } else {
  82                 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
  83         }
  84
  85         if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
  86                 eapol_sm_invalidate_cached_session(wpa_s->eapol);
  87         old_ssid = wpa_s->current_ssid;
  88         wpa_s->current_ssid = ssid;
  89         wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
  90         wpa_supplicant_initiate_eapol(wpa_s);
  91         if (old_ssid != wpa_s->current_ssid)
  92                 wpas_notify_network_changed(wpa_s);
  93
  94         return 0;
  95 }
  96
  97
  98 static void wpa_supplicant_stop_countermeasures(void *eloop_ctx,
  99                                                 void *sock_ctx)
 100 {
 101         struct wpa_supplicant *wpa_s = eloop_ctx;
 102
 103         if (wpa_s->countermeasures) {
 104                 wpa_s->countermeasures = 0;
 105                 wpa_drv_set_countermeasures(wpa_s, 0);
 106                 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
 107                 wpa_supplicant_req_scan(wpa_s, 0, 0);
 108         }
 109 }
 110
 111
 112 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
 113 {
 114         int bssid_changed;
 115
 116 #ifdef CONFIG_IBSS_RSN
 117         ibss_rsn_deinit(wpa_s->ibss_rsn);
 118         wpa_s->ibss_rsn = NULL;
 119 #endif /* CONFIG_IBSS_RSN */
 120
 121 #ifdef CONFIG_AP
 122         wpa_supplicant_ap_deinit(wpa_s);
 123 #endif /* CONFIG_AP */
 124
 125         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
 126                 return;
 127
 128         wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
 129         wpa_s->conf->ap_scan = DEFAULT_AP_SCAN;
 130         bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
 131         os_memset(wpa_s->bssid, 0, ETH_ALEN);
 132         os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
 133         wpa_s->current_bss = NULL;
 134         wpa_s->assoc_freq = 0;
 135 #ifdef CONFIG_IEEE80211R
 136 #ifdef CONFIG_SME
 137         if (wpa_s->sme.ft_ies)
 138                 sme_update_ft_ies(wpa_s, NULL, NULL, 0);
 139 #endif /* CONFIG_SME */
 140 #endif /* CONFIG_IEEE80211R */
 141
 142         if (bssid_changed)
 143                 wpas_notify_bssid_changed(wpa_s);
 144
 145         eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
 146         eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
 147         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
 148                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
 149         wpa_s->ap_ies_from_associnfo = 0;
 150 }
 151
 152
 153 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
 154 {
 155         struct wpa_ie_data ie;
 156         int pmksa_set = -1;
 157         size_t i;
 158
 159         if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
 160             ie.pmkid == NULL)
 161                 return;
 162
 163         for (i = 0; i < ie.num_pmkid; i++) {
 164                 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
 165                                                     ie.pmkid + i * PMKID_LEN,
 166                                                     NULL, NULL, 0);
 167                 if (pmksa_set == 0) {
 168                         eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
 169                         break;
 170                 }
 171         }
 172
 173         wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
 174                 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
 175 }
 176
 177
 178 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
 179                                                  union wpa_event_data *data)
 180 {
 181         if (data == NULL) {
 182                 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
 183                         "event");
 184                 return;
 185         }
 186         wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
 187                 " index=%d preauth=%d",
 188                 MAC2STR(data->pmkid_candidate.bssid),
 189                 data->pmkid_candidate.index,
 190                 data->pmkid_candidate.preauth);
 191
 192         pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
 193                             data->pmkid_candidate.index,
 194                             data->pmkid_candidate.preauth);
 195 }
 196
 197
 198 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
 199 {
 200         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
 201             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
 202                 return 0;
 203
 204 #ifdef IEEE8021X_EAPOL
 205         if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
 206             wpa_s->current_ssid &&
 207             !(wpa_s->current_ssid->eapol_flags &
 208               (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 209                EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
 210                 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
 211                  * plaintext or static WEP keys). */
 212                 return 0;
 213         }
 214 #endif /* IEEE8021X_EAPOL */
 215
 216         return 1;
 217 }
 218
 219
 220 /**
 221  * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
 222  * @wpa_s: pointer to wpa_supplicant data
 223  * @ssid: Configuration data for the network
 224  * Returns: 0 on success, -1 on failure
 225  *
 226  * This function is called when starting authentication with a network that is
 227  * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
 228  */
 229 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 230                               struct wpa_ssid *ssid)
 231 {
 232 #ifdef IEEE8021X_EAPOL
 233         int aka = 0, sim = 0, type;
 234
 235         if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
 236                 return 0;
 237
 238         if (ssid->eap.eap_methods == NULL) {
 239                 sim = 1;
 240                 aka = 1;
 241         } else {
 242                 struct eap_method_type *eap = ssid->eap.eap_methods;
 243                 while (eap->vendor != EAP_VENDOR_IETF ||
 244                        eap->method != EAP_TYPE_NONE) {
 245                         if (eap->vendor == EAP_VENDOR_IETF) {
 246                                 if (eap->method == EAP_TYPE_SIM)
 247                                         sim = 1;
 248                                 else if (eap->method == EAP_TYPE_AKA)
 249                                         aka = 1;
 250                         }
 251                         eap++;
 252                 }
 253         }
 254
 255         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
 256                 sim = 0;
 257         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL)
 258                 aka = 0;
 259
 260         if (!sim && !aka) {
 261                 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
 262                         "use SIM, but neither EAP-SIM nor EAP-AKA are "
 263                         "enabled");
 264                 return 0;
 265         }
 266
 267         wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
 268                 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
 269         if (sim && aka)
 270                 type = SCARD_TRY_BOTH;
 271         else if (aka)
 272                 type = SCARD_USIM_ONLY;
 273         else
 274                 type = SCARD_GSM_SIM_ONLY;
 275
 276         wpa_s->scard = scard_init(type);
 277         if (wpa_s->scard == NULL) {
 278                 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
 279                         "(pcsc-lite)");
 280                 return -1;
 281         }
 282         wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
 283         eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
 284 #endif /* IEEE8021X_EAPOL */
 285
 286         return 0;
 287 }
 288
 289
 290 #ifndef CONFIG_NO_SCAN_PROCESSING
 291 static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
 292                                         struct wpa_ssid *ssid)
 293 {
 294         int i, privacy = 0;
 295
 296         if (ssid->mixed_cell)
 297                 return 1;
 298
 299 #ifdef CONFIG_WPS
 300         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
 301                 return 1;
 302 #endif /* CONFIG_WPS */
 303
 304         for (i = 0; i < NUM_WEP_KEYS; i++) {
 305                 if (ssid->wep_key_len[i]) {
 306                         privacy = 1;
 307                         break;
 308                 }
 309         }
 310 #ifdef IEEE8021X_EAPOL
 311         if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
 312             ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 313                                  EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
 314                 privacy = 1;
 315 #endif /* IEEE8021X_EAPOL */
 316
 317         if (wpa_key_mgmt_wpa(ssid->key_mgmt))
 318                 privacy = 1;
 319
 320         if (bss->caps & IEEE80211_CAP_PRIVACY)
 321                 return privacy;
 322         return !privacy;
 323 }
 324
 325
 326 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
 327                                          struct wpa_ssid *ssid,
 328                                          struct wpa_scan_res *bss)
 329 {
 330         struct wpa_ie_data ie;
 331         int proto_match = 0;
 332         const u8 *rsn_ie, *wpa_ie;
 333         int ret;
 334         int wep_ok;
 335
 336         ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
 337         if (ret >= 0)
 338                 return ret;
 339
 340         /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
 341         wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
 342                 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
 343                   ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
 344                  (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
 345
 346         rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 347         while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
 348                 proto_match++;
 349
 350                 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
 351                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - parse "
 352                                 "failed");
 353                         break;
 354                 }
 355
 356                 if (wep_ok &&
 357                     (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
 358                 {
 359                         wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on TSN "
 360                                 "in RSN IE");
 361                         return 1;
 362                 }
 363
 364                 if (!(ie.proto & ssid->proto)) {
 365                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - proto "
 366                                 "mismatch");
 367                         break;
 368                 }
 369
 370                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 371                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - PTK "
 372                                 "cipher mismatch");
 373                         break;
 374                 }
 375
 376                 if (!(ie.group_cipher & ssid->group_cipher)) {
 377                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - GTK "
 378                                 "cipher mismatch");
 379                         break;
 380                 }
 381
 382                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 383                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - key mgmt "
 384                                 "mismatch");
 385                         break;
 386                 }
 387
 388 #ifdef CONFIG_IEEE80211W
 389                 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
 390                     ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
 391                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - no mgmt "
 392                                 "frame protection");
 393                         break;
 394                 }
 395 #endif /* CONFIG_IEEE80211W */
 396
 397                 wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on RSN IE");
 398                 return 1;
 399         }
 400
 401         wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 402         while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
 403                 proto_match++;
 404
 405                 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
 406                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - parse "
 407                                 "failed");
 408                         break;
 409                 }
 410
 411                 if (wep_ok &&
 412                     (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
 413                 {
 414                         wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on TSN "
 415                                 "in WPA IE");
 416                         return 1;
 417                 }
 418
 419                 if (!(ie.proto & ssid->proto)) {
 420                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - proto "
 421                                 "mismatch");
 422                         break;
 423                 }
 424
 425                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 426                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - PTK "
 427                                 "cipher mismatch");
 428                         break;
 429                 }
 430
 431                 if (!(ie.group_cipher & ssid->group_cipher)) {
 432                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - GTK "
 433                                 "cipher mismatch");
 434                         break;
 435                 }
 436
 437                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 438                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - key mgmt "
 439                                 "mismatch");
 440                         break;
 441                 }
 442
 443                 wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on WPA IE");
 444                 return 1;
 445         }
 446
 447         if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
 448             wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
 449                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - no WPA/RSN proto match");
 450                 return 0;
 451         }
 452
 453         if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
 454                 wpa_dbg(wpa_s, MSG_DEBUG, "   allow in non-WPA/WPA2");
 455                 return 1;
 456         }
 457
 458         wpa_dbg(wpa_s, MSG_DEBUG, "   reject due to mismatch with "
 459                 "WPA/WPA2");
 460
 461         return 0;
 462 }
 463
 464
 465 static int freq_allowed(int *freqs, int freq)
 466 {
 467         int i;
 468
 469         if (freqs == NULL)
 470                 return 1;
 471
 472         for (i = 0; freqs[i]; i++)
 473                 if (freqs[i] == freq)
 474                         return 1;
 475         return 0;
 476 }
 477
 478
 479 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
 480                                             int i, struct wpa_scan_res *bss,
 481                                             struct wpa_ssid *group)
 482 {
 483         const u8 *ssid_;
 484         u8 wpa_ie_len, rsn_ie_len, ssid_len;
 485         int wpa;
 486         struct wpa_blacklist *e;
 487         const u8 *ie;
 488         struct wpa_ssid *ssid;
 489
 490         ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
 491         ssid_ = ie ? ie + 2 : (u8 *) "";
 492         ssid_len = ie ? ie[1] : 0;
 493
 494         ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 495         wpa_ie_len = ie ? ie[1] : 0;
 496
 497         ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 498         rsn_ie_len = ie ? ie[1] : 0;
 499
 500         wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
 501                 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
 502                 i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len),
 503                 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
 504                 wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "");
 505
 506         e = wpa_blacklist_get(wpa_s, bss->bssid);
 507         if (e) {
 508                 int limit = 1;
 509                 if (wpa_supplicant_enabled_networks(wpa_s->conf) == 1) {
 510                         /*
 511                          * When only a single network is enabled, we can
 512                          * trigger blacklisting on the first failure. This
 513                          * should not be done with multiple enabled networks to
 514                          * avoid getting forced to move into a worse ESS on
 515                          * single error if there are no other BSSes of the
 516                          * current ESS.
 517                          */
 518                         limit = 0;
 519                 }
 520                 if (e->count > limit) {
 521                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - blacklisted "
 522                                 "(count=%d limit=%d)", e->count, limit);
 523                         return NULL;
 524                 }
 525         }
 526
 527         if (ssid_len == 0) {
 528                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID not known");
 529                 return NULL;
 530         }
 531
 532         wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
 533
 534         for (ssid = group; ssid; ssid = ssid->pnext) {
 535                 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
 536
 537                 if (ssid->disabled) {
 538                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - disabled");
 539                         continue;
 540                 }
 541
 542 #ifdef CONFIG_WPS
 543                 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
 544                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - blacklisted "
 545                                 "(WPS)");
 546                         continue;
 547                 }
 548
 549                 if (wpa && ssid->ssid_len == 0 &&
 550                     wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
 551                         check_ssid = 0;
 552
 553                 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
 554                         /* Only allow wildcard SSID match if an AP
 555                          * advertises active WPS operation that matches
 556                          * with our mode. */
 557                         check_ssid = 1;
 558                         if (ssid->ssid_len == 0 &&
 559                             wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
 560                                 check_ssid = 0;
 561                 }
 562 #endif /* CONFIG_WPS */
 563
 564                 if (check_ssid &&
 565                     (ssid_len != ssid->ssid_len ||
 566                      os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
 567                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID mismatch");
 568                         continue;
 569                 }
 570
 571                 if (ssid->bssid_set &&
 572                     os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
 573                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - BSSID mismatch");
 574                         continue;
 575                 }
 576
 577                 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
 578                         continue;
 579
 580                 if (!wpa &&
 581                     !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
 582                     !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
 583                     !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
 584                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - non-WPA network "
 585                                 "not allowed");
 586                         continue;
 587                 }
 588
 589                 if (!wpa_supplicant_match_privacy(bss, ssid)) {
 590                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - privacy "
 591                                 "mismatch");
 592                         continue;
 593                 }
 594
 595                 if (bss->caps & IEEE80211_CAP_IBSS) {
 596                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - IBSS (adhoc) "
 597                                 "network");
 598                         continue;
 599                 }
 600
 601                 if (!freq_allowed(ssid->freq_list, bss->freq)) {
 602                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - frequency not "
 603                                 "allowed");
 604                         continue;
 605                 }
 606
 607 #ifdef CONFIG_P2P
 608                 /*
 609                  * TODO: skip the AP if its P2P IE has Group Formation
 610                  * bit set in the P2P Group Capability Bitmap and we
 611                  * are not in Group Formation with that device.
 612                  */
 613 #endif /* CONFIG_P2P */
 614
 615                 /* Matching configuration found */
 616                 return ssid;
 617         }
 618
 619         /* No matching configuration found */
 620         return NULL;
 621 }
 622
 623
 624 static struct wpa_bss *
 625 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
 626                           struct wpa_scan_results *scan_res,
 627                           struct wpa_ssid *group,
 628                           struct wpa_ssid **selected_ssid)
 629 {
 630         size_t i;
 631
 632         wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
 633                 group->priority);
 634
 635         for (i = 0; i < scan_res->num; i++) {
 636                 struct wpa_scan_res *bss = scan_res->res[i];
 637                 const u8 *ie, *ssid;
 638                 u8 ssid_len;
 639
 640                 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
 641                 if (!*selected_ssid)
 642                         continue;
 643
 644                 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
 645                 ssid = ie ? ie + 2 : (u8 *) "";
 646                 ssid_len = ie ? ie[1] : 0;
 647
 648                 wpa_dbg(wpa_s, MSG_DEBUG, "   selected BSS " MACSTR
 649                         " ssid='%s'",
 650                         MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len));
 651                 return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len);
 652         }
 653
 654         return NULL;
 655 }
 656
 657
 658 static struct wpa_bss *
 659 wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
 660                             struct wpa_scan_results *scan_res,
 661                             struct wpa_ssid **selected_ssid)
 662 {
 663         struct wpa_bss *selected = NULL;
 664         int prio;
 665
 666         while (selected == NULL) {
 667                 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
 668                         selected = wpa_supplicant_select_bss(
 669                                 wpa_s, scan_res, wpa_s->conf->pssid[prio],
 670                                 selected_ssid);
 671                         if (selected)
 672                                 break;
 673                 }
 674
 675                 if (selected == NULL && wpa_s->blacklist) {
 676                         wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
 677                                 "blacklist and try again");
 678                         wpa_blacklist_clear(wpa_s);
 679                         wpa_s->blacklist_cleared++;
 680                 } else if (selected == NULL)
 681                         break;
 682         }
 683
 684         return selected;
 685 }
 686
 687
 688 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
 689                                         int timeout_sec, int timeout_usec)
 690 {
 691         if (!wpa_supplicant_enabled_networks(wpa_s->conf)) {
 692                 /*
 693                  * No networks are enabled; short-circuit request so
 694                  * we don't wait timeout seconds before transitioning
 695                  * to INACTIVE state.
 696                  */
 697                 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
 698                 return;
 699         }
 700         wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
 701 }
 702
 703
 704 void wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
 705                             struct wpa_bss *selected,
 706                             struct wpa_ssid *ssid)
 707 {
 708         if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
 709                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
 710                         "PBC session overlap");
 711 #ifdef CONFIG_P2P
 712                 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
 713                         return;
 714 #endif /* CONFIG_P2P */
 715
 716 #ifdef CONFIG_WPS
 717                 wpas_wps_cancel(wpa_s);
 718 #endif /* CONFIG_WPS */
 719                 return;
 720         }
 721
 722         /*
 723          * Do not trigger new association unless the BSSID has changed or if
 724          * reassociation is requested. If we are in process of associating with
 725          * the selected BSSID, do not trigger new attempt.
 726          */
 727         if ((wpa_s->reassociate
 728 #ifdef ANDROID_BRCM_P2P_PATCH
 729                 && (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0)
 730                 && (wpa_s->wpa_state != WPA_COMPLETED)
 731 #endif
 732                 )||
 733             (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
 734              ((wpa_s->wpa_state != WPA_ASSOCIATING &&
 735                wpa_s->wpa_state != WPA_AUTHENTICATING) ||
 736               os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
 737               0))) {
 738                 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
 739                         wpa_supplicant_req_new_scan(wpa_s, 10, 0);
 740                         return;
 741                 }
 742                 wpa_msg(wpa_s, MSG_DEBUG, "Request association: "
 743                         "reassociate: %d  selected: "MACSTR "  bssid: " MACSTR
 744                         "  pending: " MACSTR "  wpa_state: %s",
 745                         wpa_s->reassociate, MAC2STR(selected->bssid),
 746                         MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
 747                         wpa_supplicant_state_txt(wpa_s->wpa_state));
 748                 wpa_supplicant_associate(wpa_s, selected, ssid);
 749         } else {
 750                 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the "
 751                         "selected AP");
 752         }
 753 }
 754
 755
 756 static struct wpa_ssid *
 757 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
 758 {
 759         int prio;
 760         struct wpa_ssid *ssid;
 761
 762         for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
 763                 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
 764                 {
 765                         if (ssid->disabled)
 766                                 continue;
 767                         if (ssid->mode == IEEE80211_MODE_IBSS ||
 768                             ssid->mode == IEEE80211_MODE_AP)
 769                                 return ssid;
 770                 }
 771         }
 772         return NULL;
 773 }
 774
 775
 776 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
 777  * on BSS added and BSS changed events */
 778 static void wpa_supplicant_rsn_preauth_scan_results(
 779         struct wpa_supplicant *wpa_s)
 780 {
 781         struct wpa_bss *bss;
 782
 783         if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
 784                 return;
 785
 786         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
 787                 const u8 *ssid, *rsn;
 788
 789                 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
 790                 if (ssid == NULL)
 791                         continue;
 792
 793                 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 794                 if (rsn == NULL)
 795                         continue;
 796
 797                 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
 798         }
 799
 800 }
 801
 802
 803 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
 804                                        struct wpa_bss *selected,
 805                                        struct wpa_ssid *ssid,
 806                                        struct wpa_scan_results *scan_res)
 807 {
 808         size_t i;
 809         struct wpa_scan_res *current_bss = NULL;
 810         int min_diff;
 811
 812         if (wpa_s->reassociate)
 813                 return 1; /* explicit request to reassociate */
 814         if (wpa_s->wpa_state < WPA_ASSOCIATED)
 815                 return 1; /* we are not associated; continue */
 816         if (wpa_s->current_ssid == NULL)
 817                 return 1; /* unknown current SSID */
 818         if (wpa_s->current_ssid != ssid)
 819                 return 1; /* different network block */
 820
 821         for (i = 0; i < scan_res->num; i++) {
 822                 struct wpa_scan_res *res = scan_res->res[i];
 823                 const u8 *ie;
 824                 if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0)
 825                         continue;
 826
 827                 ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
 828                 if (ie == NULL)
 829                         continue;
 830                 if (ie[1] != wpa_s->current_ssid->ssid_len ||
 831                     os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0)
 832                         continue;
 833                 current_bss = res;
 834                 break;
 835         }
 836
 837         if (!current_bss)
 838                 return 1; /* current BSS not seen in scan results */
 839
 840         wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
 841         wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
 842                 MAC2STR(current_bss->bssid), current_bss->level);
 843         wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
 844                 MAC2STR(selected->bssid), selected->level);
 845
 846         if (wpa_s->current_ssid->bssid_set &&
 847             os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
 848             0) {
 849                 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
 850                         "has preferred BSSID");
 851                 return 1;
 852         }
 853
 854         min_diff = 2;
 855         if (current_bss->level < 0) {
 856                 if (current_bss->level < -85)
 857                         min_diff = 1;
 858                 else if (current_bss->level < -80)
 859                         min_diff = 2;
 860                 else if (current_bss->level < -75)
 861                         min_diff = 3;
 862                 else if (current_bss->level < -70)
 863                         min_diff = 4;
 864                 else
 865                         min_diff = 5;
 866         }
 867         if (abs(current_bss->level - selected->level) < min_diff) {
 868                 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
 869                         "in signal level");
 870                 return 0;
 871         }
 872
 873         return 1;
 874 }
 875
 876 /* Return < 0 if no scan results could be fetched. */
 877 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
 878                                               union wpa_event_data *data)
 879 {
 880         struct wpa_bss *selected;
 881         struct wpa_ssid *ssid = NULL;
 882         struct wpa_scan_results *scan_res;
 883         int ap = 0;
 884
 885 #ifdef CONFIG_AP
 886         if (wpa_s->ap_iface)
 887                 ap = 1;
 888 #endif /* CONFIG_AP */
 889
 890         wpa_supplicant_notify_scanning(wpa_s, 0);
 891
 892         scan_res = wpa_supplicant_get_scan_results(wpa_s,
 893                                                    data ? &data->scan_info :
 894                                                    NULL, 1);
 895         if (scan_res == NULL) {
 896                 if (wpa_s->conf->ap_scan == 2 || ap)
 897                         return -1;
 898                 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
 899                         "scanning again");
 900                 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
 901                 return -1;
 902         }
 903
 904 #ifndef CONFIG_NO_RANDOM_POOL
 905         size_t i, num;
 906         num = scan_res->num;
 907         if (num > 10)
 908                 num = 10;
 909         for (i = 0; i < num; i++) {
 910                 u8 buf[5];
 911                 struct wpa_scan_res *res = scan_res->res[i];
 912                 buf[0] = res->bssid[5];
 913                 buf[1] = res->qual & 0xff;
 914                 buf[2] = res->noise & 0xff;
 915                 buf[3] = res->level & 0xff;
 916                 buf[4] = res->tsf & 0xff;
 917                 random_add_randomness(buf, sizeof(buf));
 918         }
 919 #endif /* CONFIG_NO_RANDOM_POOL */
 920
 921         if (wpa_s->scan_res_handler) {
 922                 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
 923                                          struct wpa_scan_results *scan_res);
 924
 925                 scan_res_handler = wpa_s->scan_res_handler;
 926                 wpa_s->scan_res_handler = NULL;
 927                 scan_res_handler(wpa_s, scan_res);
 928
 929                 wpa_scan_results_free(scan_res);
 930                 return 0;
 931         }
 932
 933         if (ap) {
 934                 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
 935 #ifdef CONFIG_AP
 936                 if (wpa_s->ap_iface->scan_cb)
 937                         wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
 938 #endif /* CONFIG_AP */
 939                 wpa_scan_results_free(scan_res);
 940                 return 0;
 941         }
 942
 943         wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available");
 944         wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
 945         wpas_notify_scan_results(wpa_s);
 946
 947         wpas_notify_scan_done(wpa_s, 1);
 948
 949         if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
 950                 wpa_scan_results_free(scan_res);
 951                 return 0;
 952         }
 953
 954         if (wpa_s->disconnected) {
 955                 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
 956                 wpa_scan_results_free(scan_res);
 957                 return 0;
 958         }
 959
 960         if (bgscan_notify_scan(wpa_s, scan_res) == 1) {
 961                 wpa_scan_results_free(scan_res);
 962                 return 0;
 963         }
 964
 965         selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
 966
 967         if (selected) {
 968                 int skip;
 969                 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid,
 970                                                     scan_res);
 971                 wpa_scan_results_free(scan_res);
 972                 if (skip)
 973                         return 0;
 974                 wpa_supplicant_connect(wpa_s, selected, ssid);
 975                 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
 976         } else {
 977                 wpa_scan_results_free(scan_res);
 978                 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
 979                 ssid = wpa_supplicant_pick_new_network(wpa_s);
 980                 if (ssid) {
 981                         wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
 982                         wpa_supplicant_associate(wpa_s, NULL, ssid);
 983                         wpa_supplicant_rsn_preauth_scan_results(wpa_s);
 984                 } else {
 985                         int timeout_sec = wpa_s->scan_interval;
 986                         int timeout_usec = 0;
 987 #ifdef CONFIG_P2P
 988                         if (wpa_s->p2p_in_provisioning) {
 989                                 /*
 990                                  * Use shorter wait during P2P Provisioning
 991                                  * state to speed up group formation.
 992                                  */
 993                                 timeout_sec = 0;
 994                                 timeout_usec = 250000;
 995                         }
 996 #endif /* CONFIG_P2P */
 997                         wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
 998                                                     timeout_usec);
 999                 }
1000         }
1001         return 0;
1002 }
1003
1004
1005 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1006                                               union wpa_event_data *data)
1007 {
1008         const char *rn, *rn2;
1009         struct wpa_supplicant *ifs;
1010
1011         if (_wpa_supplicant_event_scan_results(wpa_s, data) < 0) {
1012                 /*
1013                  * If no scan results could be fetched, then no need to
1014                  * notify those interfaces that did not actually request
1015                  * this scan.
1016                  */
1017                 return;
1018         }
1019
1020         /*
1021          * Check other interfaces to see if they have the same radio-name. If
1022          * so, they get updated with this same scan info.
1023          */
1024         if (!wpa_s->driver->get_radio_name)
1025                 return;
1026
1027         rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv);
1028         if (rn == NULL || rn[0] == '\0')
1029                 return;
1030
1031         wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces "
1032                 "sharing same radio (%s) in event_scan_results", rn);
1033
1034         for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
1035                 if (ifs == wpa_s || !ifs->driver->get_radio_name)
1036                         continue;
1037
1038                 rn2 = ifs->driver->get_radio_name(ifs->drv_priv);
1039                 if (rn2 && os_strcmp(rn, rn2) == 0) {
1040                         wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1041                                    "sibling", ifs->ifname);
1042                         _wpa_supplicant_event_scan_results(ifs, data);
1043                 }
1044         }
1045 }
1046
1047 #endif /* CONFIG_NO_SCAN_PROCESSING */
1048
1049
1050 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1051                                           union wpa_event_data *data)
1052 {
1053         int l, len, found = 0, wpa_found, rsn_found;
1054         const u8 *p;
1055
1056         wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1057         if (data->assoc_info.req_ies)
1058                 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1059                             data->assoc_info.req_ies_len);
1060         if (data->assoc_info.resp_ies) {
1061                 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1062                             data->assoc_info.resp_ies_len);
1063 #ifdef CONFIG_TDLS
1064                 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1065                                         data->assoc_info.resp_ies_len);
1066 #endif /* CONFIG_TDLS */
1067         }
1068         if (data->assoc_info.beacon_ies)
1069                 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1070                             data->assoc_info.beacon_ies,
1071                             data->assoc_info.beacon_ies_len);
1072         if (data->assoc_info.freq)
1073                 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1074                         data->assoc_info.freq);
1075
1076         p = data->assoc_info.req_ies;
1077         l = data->assoc_info.req_ies_len;
1078
1079         /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1080         while (p && l >= 2) {
1081                 len = p[1] + 2;
1082                 if (len > l) {
1083                         wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1084                                     p, l);
1085                         break;
1086                 }
1087                 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1088                      (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1089                     (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1090                         if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1091                                 break;
1092                         found = 1;
1093                         wpa_find_assoc_pmkid(wpa_s);
1094                         break;
1095                 }
1096                 l -= len;
1097                 p += len;
1098         }
1099         if (!found && data->assoc_info.req_ies)
1100                 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1101
1102 #ifdef CONFIG_IEEE80211R
1103 #ifdef CONFIG_SME
1104         if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1105                 u8 bssid[ETH_ALEN];
1106                 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1107                     wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1108                                                  data->assoc_info.resp_ies,
1109                                                  data->assoc_info.resp_ies_len,
1110                                                  bssid) < 0) {
1111                         wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1112                                 "Reassociation Response failed");
1113                         wpa_supplicant_deauthenticate(
1114                                 wpa_s, WLAN_REASON_INVALID_IE);
1115                         return -1;
1116                 }
1117         }
1118
1119         p = data->assoc_info.resp_ies;
1120         l = data->assoc_info.resp_ies_len;
1121
1122 #ifdef CONFIG_WPS_STRICT
1123         if (p && wpa_s->current_ssid &&
1124             wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1125                 struct wpabuf *wps;
1126                 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1127                 if (wps == NULL) {
1128                         wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1129                                 "include WPS IE in (Re)Association Response");
1130                         return -1;
1131                 }
1132
1133                 if (wps_validate_assoc_resp(wps) < 0) {
1134                         wpabuf_free(wps);
1135                         wpa_supplicant_deauthenticate(
1136                                 wpa_s, WLAN_REASON_INVALID_IE);
1137                         return -1;
1138                 }
1139                 wpabuf_free(wps);
1140         }
1141 #endif /* CONFIG_WPS_STRICT */
1142
1143         /* Go through the IEs and make a copy of the MDIE, if present. */
1144         while (p && l >= 2) {
1145                 len = p[1] + 2;
1146                 if (len > l) {
1147                         wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1148                                     p, l);
1149                         break;
1150                 }
1151                 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1152                     p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1153                         wpa_s->sme.ft_used = 1;
1154                         os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1155                                   MOBILITY_DOMAIN_ID_LEN);
1156                         break;
1157                 }
1158                 l -= len;
1159                 p += len;
1160         }
1161 #endif /* CONFIG_SME */
1162
1163         wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1164                              data->assoc_info.resp_ies_len);
1165 #endif /* CONFIG_IEEE80211R */
1166
1167         /* WPA/RSN IE from Beacon/ProbeResp */
1168         p = data->assoc_info.beacon_ies;
1169         l = data->assoc_info.beacon_ies_len;
1170
1171         /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1172          */
1173         wpa_found = rsn_found = 0;
1174         while (p && l >= 2) {
1175                 len = p[1] + 2;
1176                 if (len > l) {
1177                         wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1178                                     p, l);
1179                         break;
1180                 }
1181                 if (!wpa_found &&
1182                     p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1183                     os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1184                         wpa_found = 1;
1185                         wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1186                 }
1187
1188                 if (!rsn_found &&
1189                     p[0] == WLAN_EID_RSN && p[1] >= 2) {
1190                         rsn_found = 1;
1191                         wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1192                 }
1193
1194                 l -= len;
1195                 p += len;
1196         }
1197
1198         if (!wpa_found && data->assoc_info.beacon_ies)
1199                 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1200         if (!rsn_found && data->assoc_info.beacon_ies)
1201                 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1202         if (wpa_found || rsn_found)
1203                 wpa_s->ap_ies_from_associnfo = 1;
1204
1205         if (wpa_s->assoc_freq && data->assoc_info.freq &&
1206             wpa_s->assoc_freq != data->assoc_info.freq) {
1207                 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1208                            "%u to %u MHz",
1209                            wpa_s->assoc_freq, data->assoc_info.freq);
1210                 wpa_supplicant_update_scan_results(wpa_s);
1211         }
1212
1213         wpa_s->assoc_freq = data->assoc_info.freq;
1214
1215         return 0;
1216 }
1217
1218
1219 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1220                                        union wpa_event_data *data)
1221 {
1222         u8 bssid[ETH_ALEN];
1223         int ft_completed;
1224         int bssid_changed;
1225         struct wpa_driver_capa capa;
1226
1227 #ifdef CONFIG_AP
1228         if (wpa_s->ap_iface) {
1229                 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1230                                     data->assoc_info.addr,
1231                                     data->assoc_info.req_ies,
1232                                     data->assoc_info.req_ies_len,
1233                                     data->assoc_info.reassoc);
1234                 return;
1235         }
1236 #endif /* CONFIG_AP */
1237
1238         ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1239         if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1240                 return;
1241
1242         wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
1243         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
1244                 os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
1245         if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) ||
1246             (wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
1247              os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0)) {
1248                 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1249                         MACSTR, MAC2STR(bssid));
1250                 random_add_randomness(bssid, ETH_ALEN);
1251                 bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN);
1252                 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1253                 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1254                 if (bssid_changed)
1255                         wpas_notify_bssid_changed(wpa_s);
1256
1257                 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1258                         wpa_clear_keys(wpa_s, bssid);
1259                 }
1260                 if (wpa_supplicant_select_config(wpa_s) < 0) {
1261                         wpa_supplicant_disassociate(
1262                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1263                         return;
1264                 }
1265                 if (wpa_s->current_ssid) {
1266                         struct wpa_bss *bss = NULL;
1267                         struct wpa_ssid *ssid = wpa_s->current_ssid;
1268                         if (ssid->ssid_len > 0)
1269                                 bss = wpa_bss_get(wpa_s, bssid,
1270                                                   ssid->ssid, ssid->ssid_len);
1271                         if (!bss)
1272                                 bss = wpa_bss_get_bssid(wpa_s, bssid);
1273                         if (bss)
1274                                 wpa_s->current_bss = bss;
1275                 }
1276         }
1277
1278 #ifdef CONFIG_SME
1279         os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1280         wpa_s->sme.prev_bssid_set = 1;
1281 #endif /* CONFIG_SME */
1282
1283         wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1284         if (wpa_s->current_ssid) {
1285                 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1286                  * initialized before association, but for other modes,
1287                  * initialize PC/SC here, if the current configuration needs
1288                  * smartcard or SIM/USIM. */
1289                 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1290         }
1291         wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1292         if (wpa_s->l2)
1293                 l2_packet_notify_auth_start(wpa_s->l2);
1294
1295         /*
1296          * Set portEnabled first to FALSE in order to get EAP state machine out
1297          * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1298          * state machine may transit to AUTHENTICATING state based on obsolete
1299          * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1300          * AUTHENTICATED without ever giving chance to EAP state machine to
1301          * reset the state.
1302          */
1303         if (!ft_completed) {
1304                 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1305                 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1306         }
1307         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1308                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1309         /* 802.1X::portControl = Auto */
1310         eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1311         wpa_s->eapol_received = 0;
1312         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1313             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1314             (wpa_s->current_ssid &&
1315              wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1316                 wpa_supplicant_cancel_auth_timeout(wpa_s);
1317                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1318         } else if (!ft_completed) {
1319                 /* Timeout for receiving the first EAPOL packet */
1320                 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1321         }
1322         wpa_supplicant_cancel_scan(wpa_s);
1323
1324         if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1325             wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1326                 /*
1327                  * We are done; the driver will take care of RSN 4-way
1328                  * handshake.
1329                  */
1330                 wpa_supplicant_cancel_auth_timeout(wpa_s);
1331                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1332                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1333                 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1334         } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1335                    wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
1336                 /*
1337                  * The driver will take care of RSN 4-way handshake, so we need
1338                  * to allow EAPOL supplicant to complete its work without
1339                  * waiting for WPA supplicant.
1340                  */
1341                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1342         } else if (ft_completed) {
1343                 /*
1344                  * FT protocol completed - make sure EAPOL state machine ends
1345                  * up in authenticated.
1346                  */
1347                 wpa_supplicant_cancel_auth_timeout(wpa_s);
1348                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1349                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1350                 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1351         }
1352
1353         if (wpa_s->pending_eapol_rx) {
1354                 struct os_time now, age;
1355                 os_get_time(&now);
1356                 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1357                 if (age.sec == 0 && age.usec < 100000 &&
1358                     os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1359                     0) {
1360                         wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
1361                                 "frame that was received just before "
1362                                 "association notification");
1363                         wpa_supplicant_rx_eapol(
1364                                 wpa_s, wpa_s->pending_eapol_rx_src,
1365                                 wpabuf_head(wpa_s->pending_eapol_rx),
1366                                 wpabuf_len(wpa_s->pending_eapol_rx));
1367                 }
1368                 wpabuf_free(wpa_s->pending_eapol_rx);
1369                 wpa_s->pending_eapol_rx = NULL;
1370         }
1371
1372         if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1373              wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
1374             wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1375             capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
1376                 /* Set static WEP keys again */
1377                 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
1378         }
1379
1380 #ifdef CONFIG_IBSS_RSN
1381         if (wpa_s->current_ssid &&
1382             wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
1383             wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
1384             wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
1385             wpa_s->ibss_rsn == NULL) {
1386                 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
1387                 if (!wpa_s->ibss_rsn) {
1388                         wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
1389                         wpa_supplicant_deauthenticate(
1390                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1391                         return;
1392                 }
1393
1394                 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
1395         }
1396 #endif /* CONFIG_IBSS_RSN */
1397 }
1398
1399
1400 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
1401                                           u16 reason_code)
1402 {
1403         const u8 *bssid;
1404         int authenticating;
1405         u8 prev_pending_bssid[ETH_ALEN];
1406
1407         authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
1408         os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
1409
1410         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1411                 /*
1412                  * At least Host AP driver and a Prism3 card seemed to be
1413                  * generating streams of disconnected events when configuring
1414                  * IBSS for WPA-None. Ignore them for now.
1415                  */
1416                 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
1417                         "IBSS/WPA-None mode");
1418                 return;
1419         }
1420
1421         if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
1422             wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1423                 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
1424                         "pre-shared key may be incorrect");
1425         }
1426         if (!wpa_s->auto_reconnect_disabled ||
1427             wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
1428                 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Auto connect enabled: try to "
1429                         "reconnect (wps=%d)",
1430                         wpa_s->key_mgmt == WPA_KEY_MGMT_WPS);
1431                 if (wpa_s->wpa_state >= WPA_ASSOCIATING)
1432                         wpa_supplicant_req_scan(wpa_s, 0, 500000);
1433         } else {
1434                 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Auto connect disabled: do not "
1435                         "try to re-connect");
1436                 wpa_s->reassociate = 0;
1437                 wpa_s->disconnected = 1;
1438         }
1439         bssid = wpa_s->bssid;
1440         if (is_zero_ether_addr(bssid))
1441                 bssid = wpa_s->pending_bssid;
1442         wpas_connection_failed(wpa_s, bssid);
1443         wpa_sm_notify_disassoc(wpa_s->wpa);
1444         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
1445                 " reason=%d",
1446                 MAC2STR(bssid), reason_code);
1447         if (wpa_supplicant_dynamic_keys(wpa_s)) {
1448                 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
1449                 wpa_s->keys_cleared = 0;
1450                 wpa_clear_keys(wpa_s, wpa_s->bssid);
1451         }
1452         wpa_supplicant_mark_disassoc(wpa_s);
1453
1454         if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1455                 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
1456 }
1457
1458
1459 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1460 static void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx,
1461                                                     void *sock_ctx)
1462 {
1463         struct wpa_supplicant *wpa_s = eloop_ctx;
1464
1465         if (!wpa_s->pending_mic_error_report)
1466                 return;
1467
1468         wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
1469         wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
1470         wpa_s->pending_mic_error_report = 0;
1471 }
1472 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1473
1474
1475 static void
1476 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
1477                                          union wpa_event_data *data)
1478 {
1479         int pairwise;
1480         struct os_time t;
1481
1482         wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
1483         pairwise = (data && data->michael_mic_failure.unicast);
1484         os_get_time(&t);
1485         if ((wpa_s->last_michael_mic_error &&
1486              t.sec - wpa_s->last_michael_mic_error <= 60) ||
1487             wpa_s->pending_mic_error_report) {
1488                 if (wpa_s->pending_mic_error_report) {
1489                         /*
1490                          * Send the pending MIC error report immediately since
1491                          * we are going to start countermeasures and AP better
1492                          * do the same.
1493                          */
1494                         wpa_sm_key_request(wpa_s->wpa, 1,
1495                                            wpa_s->pending_mic_error_pairwise);
1496                 }
1497
1498                 /* Send the new MIC error report immediately since we are going
1499                  * to start countermeasures and AP better do the same.
1500                  */
1501                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1502
1503                 /* initialize countermeasures */
1504                 wpa_s->countermeasures = 1;
1505                 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
1506
1507                 /*
1508                  * Need to wait for completion of request frame. We do not get
1509                  * any callback for the message completion, so just wait a
1510                  * short while and hope for the best. */
1511                 os_sleep(0, 10000);
1512
1513                 wpa_drv_set_countermeasures(wpa_s, 1);
1514                 wpa_supplicant_deauthenticate(wpa_s,
1515                                               WLAN_REASON_MICHAEL_MIC_FAILURE);
1516                 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
1517                                      wpa_s, NULL);
1518                 eloop_register_timeout(60, 0,
1519                                        wpa_supplicant_stop_countermeasures,
1520                                        wpa_s, NULL);
1521                 /* TODO: mark the AP rejected for 60 second. STA is
1522                  * allowed to associate with another AP.. */
1523         } else {
1524 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1525                 if (wpa_s->mic_errors_seen) {
1526                         /*
1527                          * Reduce the effectiveness of Michael MIC error
1528                          * reports as a means for attacking against TKIP if
1529                          * more than one MIC failure is noticed with the same
1530                          * PTK. We delay the transmission of the reports by a
1531                          * random time between 0 and 60 seconds in order to
1532                          * force the attacker wait 60 seconds before getting
1533                          * the information on whether a frame resulted in a MIC
1534                          * failure.
1535                          */
1536                         u8 rval[4];
1537                         int sec;
1538
1539                         if (os_get_random(rval, sizeof(rval)) < 0)
1540                                 sec = os_random() % 60;
1541                         else
1542                                 sec = WPA_GET_BE32(rval) % 60;
1543                         wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
1544                                 "report %d seconds", sec);
1545                         wpa_s->pending_mic_error_report = 1;
1546                         wpa_s->pending_mic_error_pairwise = pairwise;
1547                         eloop_cancel_timeout(
1548                                 wpa_supplicant_delayed_mic_error_report,
1549                                 wpa_s, NULL);
1550                         eloop_register_timeout(
1551                                 sec, os_random() % 1000000,
1552                                 wpa_supplicant_delayed_mic_error_report,
1553                                 wpa_s, NULL);
1554                 } else {
1555                         wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1556                 }
1557 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1558                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1559 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1560         }
1561         wpa_s->last_michael_mic_error = t.sec;
1562         wpa_s->mic_errors_seen++;
1563 }
1564
1565
1566 #ifdef CONFIG_TERMINATE_ONLASTIF
1567 static int any_interfaces(struct wpa_supplicant *head)
1568 {
1569         struct wpa_supplicant *wpa_s;
1570
1571         for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
1572                 if (!wpa_s->interface_removed)
1573                         return 1;
1574         return 0;
1575 }
1576 #endif /* CONFIG_TERMINATE_ONLASTIF */
1577
1578
1579 static void
1580 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
1581                                       union wpa_event_data *data)
1582 {
1583         if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
1584                 return;
1585
1586         switch (data->interface_status.ievent) {
1587         case EVENT_INTERFACE_ADDED:
1588                 if (!wpa_s->interface_removed)
1589                         break;
1590                 wpa_s->interface_removed = 0;
1591                 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
1592                 if (wpa_supplicant_driver_init(wpa_s) < 0) {
1593                         wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
1594                                 "driver after interface was added");
1595                 }
1596                 break;
1597         case EVENT_INTERFACE_REMOVED:
1598                 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
1599                 wpa_s->interface_removed = 1;
1600                 wpa_supplicant_mark_disassoc(wpa_s);
1601                 l2_packet_deinit(wpa_s->l2);
1602                 wpa_s->l2 = NULL;
1603 #ifdef CONFIG_IBSS_RSN
1604                 ibss_rsn_deinit(wpa_s->ibss_rsn);
1605                 wpa_s->ibss_rsn = NULL;
1606 #endif /* CONFIG_IBSS_RSN */
1607 #ifdef CONFIG_TERMINATE_ONLASTIF
1608                 /* check if last interface */
1609                 if (!any_interfaces(wpa_s->global->ifaces))
1610                         eloop_terminate();
1611 #endif /* CONFIG_TERMINATE_ONLASTIF */
1612                 break;
1613         }
1614 }
1615
1616
1617 #ifdef CONFIG_PEERKEY
1618 static void
1619 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
1620                               union wpa_event_data *data)
1621 {
1622         if (data == NULL)
1623                 return;
1624         wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
1625 }
1626 #endif /* CONFIG_PEERKEY */
1627
1628
1629 #ifdef CONFIG_TDLS
1630 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
1631                                       union wpa_event_data *data)
1632 {
1633         if (data == NULL)
1634                 return;
1635         switch (data->tdls.oper) {
1636         case TDLS_REQUEST_SETUP:
1637                 wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
1638                 break;
1639         case TDLS_REQUEST_TEARDOWN:
1640                 /* request from driver to add FTIE */
1641                 wpa_tdls_recv_teardown_notify(wpa_s->wpa, data->tdls.peer,
1642                                               data->tdls.reason_code);
1643                 break;
1644         }
1645 }
1646 #endif /* CONFIG_TDLS */
1647
1648
1649 #ifdef CONFIG_IEEE80211R
1650 static void
1651 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
1652                                  union wpa_event_data *data)
1653 {
1654         if (data == NULL)
1655                 return;
1656
1657         if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
1658                                     data->ft_ies.ies_len,
1659                                     data->ft_ies.ft_action,
1660                                     data->ft_ies.target_ap,
1661                                     data->ft_ies.ric_ies,
1662                                     data->ft_ies.ric_ies_len) < 0) {
1663                 /* TODO: prevent MLME/driver from trying to associate? */
1664         }
1665 }
1666 #endif /* CONFIG_IEEE80211R */
1667
1668
1669 #ifdef CONFIG_IBSS_RSN
1670 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
1671                                                 union wpa_event_data *data)
1672 {
1673         struct wpa_ssid *ssid;
1674         if (wpa_s->wpa_state < WPA_ASSOCIATED)
1675                 return;
1676         if (data == NULL)
1677                 return;
1678         ssid = wpa_s->current_ssid;
1679         if (ssid == NULL)
1680                 return;
1681         if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
1682                 return;
1683
1684         ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
1685 }
1686 #endif /* CONFIG_IBSS_RSN */
1687
1688
1689 #ifdef CONFIG_IEEE80211R
1690 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
1691                          size_t len)
1692 {
1693         const u8 *sta_addr, *target_ap_addr;
1694         u16 status;
1695
1696         wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
1697         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1698                 return; /* only SME case supported for now */
1699         if (len < 1 + 2 * ETH_ALEN + 2)
1700                 return;
1701         if (data[0] != 2)
1702                 return; /* Only FT Action Response is supported for now */
1703         sta_addr = data + 1;
1704         target_ap_addr = data + 1 + ETH_ALEN;
1705         status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
1706         wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
1707                 MACSTR " TargetAP " MACSTR " status %u",
1708                 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
1709
1710         if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
1711                 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
1712                         " in FT Action Response", MAC2STR(sta_addr));
1713                 return;
1714         }
1715
1716         if (status) {
1717                 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
1718                         "failure (status code %d)", status);
1719                 /* TODO: report error to FT code(?) */
1720                 return;
1721         }
1722
1723         if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
1724                                     len - (1 + 2 * ETH_ALEN + 2), 1,
1725                                     target_ap_addr, NULL, 0) < 0)
1726                 return;
1727
1728 #ifdef CONFIG_SME
1729         {
1730                 struct wpa_bss *bss;
1731                 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
1732                 if (bss)
1733                         wpa_s->sme.freq = bss->freq;
1734                 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
1735                 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
1736                               WLAN_AUTH_FT);
1737         }
1738 #endif /* CONFIG_SME */
1739 }
1740 #endif /* CONFIG_IEEE80211R */
1741
1742
1743 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
1744                                                struct unprot_deauth *e)
1745 {
1746 #ifdef CONFIG_IEEE80211W
1747         wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
1748                    "dropped: " MACSTR " -> " MACSTR
1749                    " (reason code %u)",
1750                    MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
1751         sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
1752 #endif /* CONFIG_IEEE80211W */
1753 }
1754
1755
1756 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
1757                                                  struct unprot_disassoc *e)
1758 {
1759 #ifdef CONFIG_IEEE80211W
1760         wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
1761                    "dropped: " MACSTR " -> " MACSTR
1762                    " (reason code %u)",
1763                    MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
1764         sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
1765 #endif /* CONFIG_IEEE80211W */
1766 }
1767
1768
1769 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
1770                           union wpa_event_data *data)
1771 {
1772         struct wpa_supplicant *wpa_s = ctx;
1773         u16 reason_code = 0;
1774
1775         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
1776             event != EVENT_INTERFACE_ENABLED &&
1777             event != EVENT_INTERFACE_STATUS) {
1778                 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore event %d while interface is "
1779                         "disabled", event);
1780                 return;
1781         }
1782
1783         wpa_dbg(wpa_s, MSG_DEBUG, "Event %d received on interface %s",
1784                 event, wpa_s->ifname);
1785
1786         switch (event) {
1787         case EVENT_AUTH:
1788                 sme_event_auth(wpa_s, data);
1789                 break;
1790         case EVENT_ASSOC:
1791                 wpa_supplicant_event_assoc(wpa_s, data);
1792                 break;
1793         case EVENT_DISASSOC:
1794                 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
1795                 if (data) {
1796                         wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u",
1797                                 data->disassoc_info.reason_code);
1798                         if (data->disassoc_info.addr)
1799                                 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
1800                                         MAC2STR(data->disassoc_info.addr));
1801                 }
1802 #ifdef CONFIG_AP
1803                 if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
1804                         hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
1805                                                data->disassoc_info.addr);
1806                         break;
1807                 }
1808 #endif /* CONFIG_AP */
1809                 if (data) {
1810                         reason_code = data->disassoc_info.reason_code;
1811                         wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
1812                                     data->disassoc_info.ie,
1813                                     data->disassoc_info.ie_len);
1814 #ifdef CONFIG_P2P
1815                         wpas_p2p_disassoc_notif(
1816                                 wpa_s, data->disassoc_info.addr, reason_code,
1817                                 data->disassoc_info.ie,
1818                                 data->disassoc_info.ie_len);
1819 #endif /* CONFIG_P2P */
1820                 }
1821                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
1822                         sme_event_disassoc(wpa_s, data);
1823                 /* fall through */
1824         case EVENT_DEAUTH:
1825                 if (event == EVENT_DEAUTH) {
1826                         wpa_dbg(wpa_s, MSG_DEBUG,
1827                                 "Deauthentication notification");
1828                         if (data) {
1829                                 reason_code = data->deauth_info.reason_code;
1830                                 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u",
1831                                         data->deauth_info.reason_code);
1832                                 if (data->deauth_info.addr) {
1833                                         wpa_dbg(wpa_s, MSG_DEBUG, " * address "
1834                                                 MACSTR,
1835                                                 MAC2STR(data->deauth_info.
1836                                                         addr));
1837                                 }
1838                                 wpa_hexdump(MSG_DEBUG,
1839                                             "Deauthentication frame IE(s)",
1840                                             data->deauth_info.ie,
1841                                             data->deauth_info.ie_len);
1842 #ifdef CONFIG_P2P
1843                                 wpas_p2p_deauth_notif(
1844                                         wpa_s, data->deauth_info.addr,
1845                                         reason_code,
1846                                         data->deauth_info.ie,
1847                                         data->deauth_info.ie_len);
1848 #endif /* CONFIG_P2P */
1849                         }
1850                 }
1851 #ifdef CONFIG_AP
1852                 if (wpa_s->ap_iface && data && data->deauth_info.addr) {
1853                         hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
1854                                                data->deauth_info.addr);
1855                         break;
1856                 }
1857 #endif /* CONFIG_AP */
1858                 wpa_supplicant_event_disassoc(wpa_s, reason_code);
1859
1860 #if defined(ANDROID_BRCM_P2P_PATCH) && defined(CONFIG_P2P)
1861                 wpas_p2p_group_remove_notif(wpa_s, reason_code);
1862 #endif
1863
1864                 break;
1865         case EVENT_MICHAEL_MIC_FAILURE:
1866                 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
1867                 break;
1868 #ifndef CONFIG_NO_SCAN_PROCESSING
1869         case EVENT_SCAN_RESULTS:
1870                 wpa_supplicant_event_scan_results(wpa_s, data);
1871                 break;
1872 #endif /* CONFIG_NO_SCAN_PROCESSING */
1873         case EVENT_ASSOCINFO:
1874                 wpa_supplicant_event_associnfo(wpa_s, data);
1875                 break;
1876         case EVENT_INTERFACE_STATUS:
1877                 wpa_supplicant_event_interface_status(wpa_s, data);
1878                 break;
1879         case EVENT_PMKID_CANDIDATE:
1880                 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
1881                 break;
1882 #ifdef CONFIG_PEERKEY
1883         case EVENT_STKSTART:
1884                 wpa_supplicant_event_stkstart(wpa_s, data);
1885                 break;
1886 #endif /* CONFIG_PEERKEY */
1887 #ifdef CONFIG_TDLS
1888         case EVENT_TDLS:
1889                 wpa_supplicant_event_tdls(wpa_s, data);
1890                 break;
1891 #endif /* CONFIG_TDLS */
1892 #ifdef CONFIG_IEEE80211R
1893         case EVENT_FT_RESPONSE:
1894                 wpa_supplicant_event_ft_response(wpa_s, data);
1895                 break;
1896 #endif /* CONFIG_IEEE80211R */
1897 #ifdef CONFIG_IBSS_RSN
1898         case EVENT_IBSS_RSN_START:
1899                 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
1900                 break;
1901 #endif /* CONFIG_IBSS_RSN */
1902         case EVENT_ASSOC_REJECT:
1903                 if (data->assoc_reject.bssid)
1904                         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
1905                                 "bssid=" MACSTR " status_code=%u",
1906                                 MAC2STR(data->assoc_reject.bssid),
1907                                 data->assoc_reject.status_code);
1908                 else
1909                         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
1910                                 "status_code=%u",
1911                                 data->assoc_reject.status_code);
1912                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
1913                         sme_event_assoc_reject(wpa_s, data);
1914                 break;
1915         case EVENT_AUTH_TIMED_OUT:
1916                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
1917                         sme_event_auth_timed_out(wpa_s, data);
1918                 break;
1919         case EVENT_ASSOC_TIMED_OUT:
1920                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
1921                         sme_event_assoc_timed_out(wpa_s, data);
1922                 break;
1923 #ifdef CONFIG_AP
1924         case EVENT_TX_STATUS:
1925                 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
1926                         " type=%d stype=%d",
1927                         MAC2STR(data->tx_status.dst),
1928                         data->tx_status.type, data->tx_status.stype);
1929                 if (wpa_s->ap_iface == NULL) {
1930 #ifdef CONFIG_P2P
1931                         if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
1932                             data->tx_status.stype == WLAN_FC_STYPE_ACTION)
1933                                 wpas_send_action_tx_status(
1934                                         wpa_s, data->tx_status.dst,
1935                                         data->tx_status.data,
1936                                         data->tx_status.data_len,
1937                                         data->tx_status.ack ?
1938                                         P2P_SEND_ACTION_SUCCESS :
1939                                         P2P_SEND_ACTION_NO_ACK);
1940 #endif /* CONFIG_P2P */
1941                         break;
1942                 }
1943 #ifdef CONFIG_P2P
1944                 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
1945                         MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
1946                 /*
1947                  * Catch TX status events for Action frames we sent via group
1948                  * interface in GO mode.
1949                  */
1950                 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
1951                     data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
1952                     os_memcmp(wpa_s->parent->pending_action_dst,
1953                               data->tx_status.dst, ETH_ALEN) == 0) {
1954                         wpas_send_action_tx_status(
1955                                 wpa_s->parent, data->tx_status.dst,
1956                                 data->tx_status.data,
1957                                 data->tx_status.data_len,
1958                                 data->tx_status.ack ?
1959                                 P2P_SEND_ACTION_SUCCESS :
1960                                 P2P_SEND_ACTION_NO_ACK);
1961                         break;
1962                 }
1963 #endif /* CONFIG_P2P */
1964                 switch (data->tx_status.type) {
1965                 case WLAN_FC_TYPE_MGMT:
1966                         ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
1967                                       data->tx_status.data_len,
1968                                       data->tx_status.stype,
1969                                       data->tx_status.ack);
1970                         break;
1971                 case WLAN_FC_TYPE_DATA:
1972                         ap_tx_status(wpa_s, data->tx_status.dst,
1973                                      data->tx_status.data,
1974                                      data->tx_status.data_len,
1975                                      data->tx_status.ack);
1976                         break;
1977                 }
1978                 break;
1979         case EVENT_RX_FROM_UNKNOWN:
1980                 if (wpa_s->ap_iface == NULL)
1981                         break;
1982                 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.frame,
1983                                        data->rx_from_unknown.len);
1984                 break;
1985         case EVENT_RX_MGMT:
1986                 if (wpa_s->ap_iface == NULL) {
1987 #ifdef CONFIG_P2P
1988                         u16 fc, stype;
1989                         const struct ieee80211_mgmt *mgmt;
1990                         mgmt = (const struct ieee80211_mgmt *)
1991                                 data->rx_mgmt.frame;
1992                         fc = le_to_host16(mgmt->frame_control);
1993                         stype = WLAN_FC_GET_STYPE(fc);
1994                         if (stype == WLAN_FC_STYPE_PROBE_REQ &&
1995                             data->rx_mgmt.frame_len > 24) {
1996                                 const u8 *src = mgmt->sa;
1997                                 const u8 *ie = mgmt->u.probe_req.variable;
1998                                 size_t ie_len = data->rx_mgmt.frame_len -
1999                                         (mgmt->u.probe_req.variable -
2000                                          data->rx_mgmt.frame);
2001                         #ifdef ANDROID_BRCM_P2P_PATCH
2002                                 wpa_printf(MSG_DEBUG, "Non-AP: Probe request frame ");
2003                         {
2004                                 /* If we are Go or client, we need not reply the probe reqest on eth0 interface */
2005                                 struct wpa_supplicant* ifs;
2006                                 int ignore = 0;
2007                                 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
2008                                         if ( (ifs->p2p_group_interface == P2P_GROUP_INTERFACE_GO ) ||(ifs->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT )) {
2009                                                 wpa_printf(MSG_DEBUG, "Non-AP: NEERAJKG Ignoring Probe request");
2010                                                 ignore = 1;
2011                                                 break;
2012                                         }
2013                                 }
2014                                 if(ignore)
2015                                         break;
2016                                 else
2017                                         wpa_printf(MSG_DEBUG, "Non-AP: Couln't Ignore Probe request %d", wpa_s->p2p_group_interface);
2018                         }
2019                         #endif
2020                                 wpas_p2p_probe_req_rx(wpa_s, src, ie, ie_len);
2021                                 break;
2022                         }
2023 #endif /* CONFIG_P2P */
2024                         wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
2025                                 "management frame in non-AP mode");
2026                         break;
2027                 }
2028                 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
2029                 break;
2030 #endif /* CONFIG_AP */
2031         case EVENT_RX_ACTION:
2032                 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2033                         " Category=%u DataLen=%d freq=%d MHz",
2034                         MAC2STR(data->rx_action.sa),
2035                         data->rx_action.category, (int) data->rx_action.len,
2036                         data->rx_action.freq);
2037 #ifdef CONFIG_IEEE80211R
2038                 if (data->rx_action.category == WLAN_ACTION_FT) {
2039                         ft_rx_action(wpa_s, data->rx_action.data,
2040                                      data->rx_action.len);
2041                         break;
2042                 }
2043 #endif /* CONFIG_IEEE80211R */
2044 #ifdef CONFIG_IEEE80211W
2045 #ifdef CONFIG_SME
2046                 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) {
2047                         sme_sa_query_rx(wpa_s, data->rx_action.sa,
2048                                         data->rx_action.data,
2049                                         data->rx_action.len);
2050                         break;
2051                 }
2052 #endif /* CONFIG_SME */
2053 #endif /* CONFIG_IEEE80211W */
2054 #ifdef CONFIG_P2P
2055                 wpas_p2p_rx_action(wpa_s, data->rx_action.da,
2056                                    data->rx_action.sa,
2057                                    data->rx_action.bssid,
2058                                    data->rx_action.category,
2059                                    data->rx_action.data,
2060                                    data->rx_action.len, data->rx_action.freq);
2061 #endif /* CONFIG_P2P */
2062                 break;
2063         case EVENT_RX_PROBE_REQ:
2064                 if (data->rx_probe_req.sa == NULL ||
2065                     data->rx_probe_req.ie == NULL)
2066                         break;
2067 #ifdef CONFIG_AP
2068                 if (wpa_s->ap_iface) {
2069                         hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
2070                                              data->rx_probe_req.sa,
2071                                              data->rx_probe_req.ie,
2072                                              data->rx_probe_req.ie_len);
2073                         break;
2074                 }
2075 #endif /* CONFIG_AP */
2076 #ifdef CONFIG_P2P
2077                 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
2078                                       data->rx_probe_req.ie,
2079                                       data->rx_probe_req.ie_len);
2080 #endif /* CONFIG_P2P */
2081                 break;
2082 #ifdef CONFIG_P2P
2083         case EVENT_REMAIN_ON_CHANNEL:
2084                 wpas_p2p_remain_on_channel_cb(
2085                         wpa_s, data->remain_on_channel.freq,
2086                         data->remain_on_channel.duration);
2087                 break;
2088         case EVENT_CANCEL_REMAIN_ON_CHANNEL:
2089                 wpas_p2p_cancel_remain_on_channel_cb(
2090                         wpa_s, data->remain_on_channel.freq);
2091                 break;
2092         case EVENT_P2P_DEV_FOUND: {
2093                 struct p2p_peer_info peer_info;
2094
2095                 os_memset(&peer_info, 0, sizeof(peer_info));
2096                 if (data->p2p_dev_found.dev_addr)
2097                         os_memcpy(peer_info.p2p_device_addr,
2098                                   data->p2p_dev_found.dev_addr, ETH_ALEN);
2099                 if (data->p2p_dev_found.pri_dev_type)
2100                         os_memcpy(peer_info.pri_dev_type,
2101                                   data->p2p_dev_found.pri_dev_type,
2102                                   sizeof(peer_info.pri_dev_type));
2103                 if (data->p2p_dev_found.dev_name)
2104                         os_strlcpy(peer_info.device_name,
2105                                    data->p2p_dev_found.dev_name,
2106                                    sizeof(peer_info.device_name));
2107                 peer_info.config_methods = data->p2p_dev_found.config_methods;
2108                 peer_info.dev_capab = data->p2p_dev_found.dev_capab;
2109                 peer_info.group_capab = data->p2p_dev_found.group_capab;
2110
2111                 /*
2112                  * FIX: new_device=1 is not necessarily correct. We should
2113                  * maintain a P2P peer database in wpa_supplicant and update
2114                  * this information based on whether the peer is truly new.
2115                  */
2116                 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1);
2117                 break;
2118                 }
2119         case EVENT_P2P_GO_NEG_REQ_RX:
2120                 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src,
2121                                    data->p2p_go_neg_req_rx.dev_passwd_id);
2122                 break;
2123         case EVENT_P2P_GO_NEG_COMPLETED:
2124                 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res);
2125                 break;
2126         case EVENT_P2P_PROV_DISC_REQUEST:
2127                 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer,
2128                                    data->p2p_prov_disc_req.config_methods,
2129                                    data->p2p_prov_disc_req.dev_addr,
2130                                    data->p2p_prov_disc_req.pri_dev_type,
2131                                    data->p2p_prov_disc_req.dev_name,
2132                                    data->p2p_prov_disc_req.supp_config_methods,
2133                                    data->p2p_prov_disc_req.dev_capab,
2134                                    data->p2p_prov_disc_req.group_capab);
2135                 break;
2136         case EVENT_P2P_PROV_DISC_RESPONSE:
2137                 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer,
2138                                     data->p2p_prov_disc_resp.config_methods);
2139                 break;
2140         case EVENT_P2P_SD_REQUEST:
2141                 wpas_sd_request(wpa_s, data->p2p_sd_req.freq,
2142                                 data->p2p_sd_req.sa,
2143                                 data->p2p_sd_req.dialog_token,
2144                                 data->p2p_sd_req.update_indic,
2145                                 data->p2p_sd_req.tlvs,
2146                                 data->p2p_sd_req.tlvs_len);
2147                 break;
2148         case EVENT_P2P_SD_RESPONSE:
2149                 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa,
2150                                  data->p2p_sd_resp.update_indic,
2151                                  data->p2p_sd_resp.tlvs,
2152                                  data->p2p_sd_resp.tlvs_len);
2153                 break;
2154 #endif /* CONFIG_P2P */
2155 #ifdef CONFIG_CLIENT_MLME
2156         case EVENT_MLME_RX: {
2157                 struct ieee80211_rx_status rx_status;
2158                 os_memset(&rx_status, 0, sizeof(rx_status));
2159                 rx_status.freq = data->mlme_rx.freq;
2160                 rx_status.channel = data->mlme_rx.channel;
2161                 rx_status.ssi = data->mlme_rx.ssi;
2162                 ieee80211_sta_rx(wpa_s, data->mlme_rx.buf, data->mlme_rx.len,
2163                                  &rx_status);
2164                 break;
2165         }
2166 #endif /* CONFIG_CLIENT_MLME */
2167         case EVENT_EAPOL_RX:
2168                 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
2169                                         data->eapol_rx.data,
2170                                         data->eapol_rx.data_len);
2171                 break;
2172         case EVENT_SIGNAL_CHANGE:
2173                 bgscan_notify_signal_change(
2174                         wpa_s, data->signal_change.above_threshold,
2175                         data->signal_change.current_signal,
2176                         data->signal_change.current_noise,
2177                         data->signal_change.current_txrate);
2178                 break;
2179         case EVENT_INTERFACE_ENABLED:
2180                 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
2181                 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
2182 #ifdef CONFIG_AP
2183                         if (!wpa_s->ap_iface) {
2184                                 wpa_supplicant_set_state(wpa_s,
2185                                                          WPA_DISCONNECTED);
2186                                 wpa_supplicant_req_scan(wpa_s, 0, 0);
2187                         } else
2188                                 wpa_supplicant_set_state(wpa_s,
2189                                                          WPA_COMPLETED);
2190 #else /* CONFIG_AP */
2191                         wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
2192                         wpa_supplicant_req_scan(wpa_s, 0, 0);
2193 #endif /* CONFIG_AP */
2194                 }
2195                 break;
2196         case EVENT_INTERFACE_DISABLED:
2197                 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
2198                 wpa_supplicant_mark_disassoc(wpa_s);
2199                 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2200                 break;
2201         case EVENT_CHANNEL_LIST_CHANGED:
2202                 if (wpa_s->drv_priv == NULL)
2203                         break; /* Ignore event during drv initialization */
2204 #ifdef CONFIG_P2P
2205                 wpas_p2p_update_channel_list(wpa_s);
2206 #endif /* CONFIG_P2P */
2207                 break;
2208         case EVENT_INTERFACE_UNAVAILABLE:
2209 #ifdef CONFIG_P2P
2210                 wpas_p2p_interface_unavailable(wpa_s);
2211 #endif /* CONFIG_P2P */
2212                 break;
2213         case EVENT_BEST_CHANNEL:
2214                 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
2215                         "(%d %d %d)",
2216                         data->best_chan.freq_24, data->best_chan.freq_5,
2217                         data->best_chan.freq_overall);
2218                 wpa_s->best_24_freq = data->best_chan.freq_24;
2219                 wpa_s->best_5_freq = data->best_chan.freq_5;
2220                 wpa_s->best_overall_freq = data->best_chan.freq_overall;
2221 #ifdef CONFIG_P2P
2222                 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
2223                                               data->best_chan.freq_5,
2224                                               data->best_chan.freq_overall);
2225 #endif /* CONFIG_P2P */
2226                 break;
2227         case EVENT_UNPROT_DEAUTH:
2228                 wpa_supplicant_event_unprot_deauth(wpa_s,
2229                                                    &data->unprot_deauth);
2230                 break;
2231         case EVENT_UNPROT_DISASSOC:
2232                 wpa_supplicant_event_unprot_disassoc(wpa_s,
2233                                                      &data->unprot_disassoc);
2234                 break;
2235         case EVENT_STATION_LOW_ACK:
2236 #ifdef CONFIG_AP
2237                 if (wpa_s->ap_iface && data)
2238                         hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
2239                                                   data->low_ack.addr);
2240 #endif /* CONFIG_AP */
2241                 break;
2242         case EVENT_IBSS_PEER_LOST:
2243 #ifdef CONFIG_IBSS_RSN
2244                 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
2245 #endif /* CONFIG_IBSS_RSN */
2246                 break;
2247         default:
2248                 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
2249                 break;
2250         }
2251 }