wpa_supplicant/events.c

   1 /*
   2  * WPA Supplicant - Driver event processing
   3  * Copyright (c) 2003-2008, 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 "wpa.h"
  20 #include "eloop.h"
  21 #include "drivers/driver.h"
  22 #include "config.h"
  23 #include "l2_packet/l2_packet.h"
  24 #include "wpa_supplicant_i.h"
  25 #include "pcsc_funcs.h"
  26 #include "preauth.h"
  27 #include "pmksa_cache.h"
  28 #include "wpa_ctrl.h"
  29 #include "eap_peer/eap.h"
  30 #include "ctrl_iface_dbus.h"
  31 #include "ieee802_11_defs.h"
  32 #include "blacklist.h"
  33 #include "wpas_glue.h"
  34 #include "wps_supplicant.h"
  35 #include "ibss_rsn.h"
  36
  37
  38 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
  39 {
  40         struct wpa_ssid *ssid;
  41
  42         if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
  43                 return 0;
  44
  45         wpa_printf(MSG_DEBUG, "Select network based on association "
  46                    "information");
  47         ssid = wpa_supplicant_get_ssid(wpa_s);
  48         if (ssid == NULL) {
  49                 wpa_printf(MSG_INFO, "No network configuration found for the "
  50                            "current AP");
  51                 return -1;
  52         }
  53
  54         if (ssid->disabled) {
  55                 wpa_printf(MSG_DEBUG, "Selected network is disabled");
  56                 return -1;
  57         }
  58
  59         wpa_printf(MSG_DEBUG, "Network configuration found for the current "
  60                    "AP");
  61         if (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
  62                               WPA_KEY_MGMT_WPA_NONE |
  63                               WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X |
  64                               WPA_KEY_MGMT_PSK_SHA256 |
  65                               WPA_KEY_MGMT_IEEE8021X_SHA256)) {
  66                 u8 wpa_ie[80];
  67                 size_t wpa_ie_len = sizeof(wpa_ie);
  68                 wpa_supplicant_set_suites(wpa_s, NULL, ssid,
  69                                           wpa_ie, &wpa_ie_len);
  70         } else {
  71                 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
  72         }
  73
  74         if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
  75                 eapol_sm_invalidate_cached_session(wpa_s->eapol);
  76         wpa_s->current_ssid = ssid;
  77         wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
  78         wpa_supplicant_initiate_eapol(wpa_s);
  79
  80         return 0;
  81 }
  82
  83
  84 static void wpa_supplicant_stop_countermeasures(void *eloop_ctx,
  85                                                 void *sock_ctx)
  86 {
  87         struct wpa_supplicant *wpa_s = eloop_ctx;
  88
  89         if (wpa_s->countermeasures) {
  90                 wpa_s->countermeasures = 0;
  91                 wpa_drv_set_countermeasures(wpa_s, 0);
  92                 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
  93                 wpa_supplicant_req_scan(wpa_s, 0, 0);
  94         }
  95 }
  96
  97
  98 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
  99 {
 100         wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
 101         os_memset(wpa_s->bssid, 0, ETH_ALEN);
 102         os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
 103         eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
 104         eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
 105         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
 106                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
 107         wpa_s->ap_ies_from_associnfo = 0;
 108 }
 109
 110
 111 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
 112 {
 113         struct wpa_ie_data ie;
 114         int pmksa_set = -1;
 115         size_t i;
 116
 117         if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
 118             ie.pmkid == NULL)
 119                 return;
 120
 121         for (i = 0; i < ie.num_pmkid; i++) {
 122                 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
 123                                                     ie.pmkid + i * PMKID_LEN,
 124                                                     NULL, NULL, 0);
 125                 if (pmksa_set == 0) {
 126                         eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
 127                         break;
 128                 }
 129         }
 130
 131         wpa_printf(MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from PMKSA "
 132                    "cache", pmksa_set == 0 ? "" : "not ");
 133 }
 134
 135
 136 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
 137                                                  union wpa_event_data *data)
 138 {
 139         if (data == NULL) {
 140                 wpa_printf(MSG_DEBUG, "RSN: No data in PMKID candidate event");
 141                 return;
 142         }
 143         wpa_printf(MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
 144                    " index=%d preauth=%d",
 145                    MAC2STR(data->pmkid_candidate.bssid),
 146                    data->pmkid_candidate.index,
 147                    data->pmkid_candidate.preauth);
 148
 149         pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
 150                             data->pmkid_candidate.index,
 151                             data->pmkid_candidate.preauth);
 152 }
 153
 154
 155 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
 156 {
 157         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
 158             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
 159                 return 0;
 160
 161 #ifdef IEEE8021X_EAPOL
 162         if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
 163             wpa_s->current_ssid &&
 164             !(wpa_s->current_ssid->eapol_flags &
 165               (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 166                EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
 167                 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
 168                  * plaintext or static WEP keys). */
 169                 return 0;
 170         }
 171 #endif /* IEEE8021X_EAPOL */
 172
 173         return 1;
 174 }
 175
 176
 177 /**
 178  * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
 179  * @wpa_s: pointer to wpa_supplicant data
 180  * @ssid: Configuration data for the network
 181  * Returns: 0 on success, -1 on failure
 182  *
 183  * This function is called when starting authentication with a network that is
 184  * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
 185  */
 186 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 187                               struct wpa_ssid *ssid)
 188 {
 189 #ifdef IEEE8021X_EAPOL
 190         int aka = 0, sim = 0, type;
 191
 192         if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
 193                 return 0;
 194
 195         if (ssid->eap.eap_methods == NULL) {
 196                 sim = 1;
 197                 aka = 1;
 198         } else {
 199                 struct eap_method_type *eap = ssid->eap.eap_methods;
 200                 while (eap->vendor != EAP_VENDOR_IETF ||
 201                        eap->method != EAP_TYPE_NONE) {
 202                         if (eap->vendor == EAP_VENDOR_IETF) {
 203                                 if (eap->method == EAP_TYPE_SIM)
 204                                         sim = 1;
 205                                 else if (eap->method == EAP_TYPE_AKA)
 206                                         aka = 1;
 207                         }
 208                         eap++;
 209                 }
 210         }
 211
 212         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
 213                 sim = 0;
 214         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL)
 215                 aka = 0;
 216
 217         if (!sim && !aka) {
 218                 wpa_printf(MSG_DEBUG, "Selected network is configured to use "
 219                            "SIM, but neither EAP-SIM nor EAP-AKA are enabled");
 220                 return 0;
 221         }
 222
 223         wpa_printf(MSG_DEBUG, "Selected network is configured to use SIM "
 224                    "(sim=%d aka=%d) - initialize PCSC", sim, aka);
 225         if (sim && aka)
 226                 type = SCARD_TRY_BOTH;
 227         else if (aka)
 228                 type = SCARD_USIM_ONLY;
 229         else
 230                 type = SCARD_GSM_SIM_ONLY;
 231
 232         wpa_s->scard = scard_init(type);
 233         if (wpa_s->scard == NULL) {
 234                 wpa_printf(MSG_WARNING, "Failed to initialize SIM "
 235                            "(pcsc-lite)");
 236                 return -1;
 237         }
 238         wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
 239         eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
 240 #endif /* IEEE8021X_EAPOL */
 241
 242         return 0;
 243 }
 244
 245
 246 #ifndef CONFIG_NO_SCAN_PROCESSING
 247 static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
 248                                         struct wpa_ssid *ssid)
 249 {
 250         int i, privacy = 0;
 251
 252         if (ssid->mixed_cell)
 253                 return 1;
 254
 255         for (i = 0; i < NUM_WEP_KEYS; i++) {
 256                 if (ssid->wep_key_len[i]) {
 257                         privacy = 1;
 258                         break;
 259                 }
 260         }
 261 #ifdef IEEE8021X_EAPOL
 262         if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
 263             ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 264                                  EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
 265                 privacy = 1;
 266 #endif /* IEEE8021X_EAPOL */
 267
 268         if (bss->caps & IEEE80211_CAP_PRIVACY)
 269                 return privacy;
 270         return !privacy;
 271 }
 272
 273
 274 static int wpa_supplicant_ssid_bss_match(struct wpa_ssid *ssid,
 275                                          struct wpa_scan_res *bss)
 276 {
 277         struct wpa_ie_data ie;
 278         int proto_match = 0;
 279         const u8 *rsn_ie, *wpa_ie;
 280         int ret;
 281
 282         ret = wpas_wps_ssid_bss_match(ssid, bss);
 283         if (ret >= 0)
 284                 return ret;
 285
 286         rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 287         while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
 288                 proto_match++;
 289
 290                 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
 291                         wpa_printf(MSG_DEBUG, "   skip RSN IE - parse failed");
 292                         break;
 293                 }
 294                 if (!(ie.proto & ssid->proto)) {
 295                         wpa_printf(MSG_DEBUG, "   skip RSN IE - proto "
 296                                    "mismatch");
 297                         break;
 298                 }
 299
 300                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 301                         wpa_printf(MSG_DEBUG, "   skip RSN IE - PTK cipher "
 302                                    "mismatch");
 303                         break;
 304                 }
 305
 306                 if (!(ie.group_cipher & ssid->group_cipher)) {
 307                         wpa_printf(MSG_DEBUG, "   skip RSN IE - GTK cipher "
 308                                    "mismatch");
 309                         break;
 310                 }
 311
 312                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 313                         wpa_printf(MSG_DEBUG, "   skip RSN IE - key mgmt "
 314                                    "mismatch");
 315                         break;
 316                 }
 317
 318 #ifdef CONFIG_IEEE80211W
 319                 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
 320                     ssid->ieee80211w == IEEE80211W_REQUIRED) {
 321                         wpa_printf(MSG_DEBUG, "   skip RSN IE - no mgmt frame "
 322                                    "protection");
 323                         break;
 324                 }
 325 #endif /* CONFIG_IEEE80211W */
 326
 327                 wpa_printf(MSG_DEBUG, "   selected based on RSN IE");
 328                 return 1;
 329         }
 330
 331         wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 332         while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
 333                 proto_match++;
 334
 335                 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
 336                         wpa_printf(MSG_DEBUG, "   skip WPA IE - parse failed");
 337                         break;
 338                 }
 339                 if (!(ie.proto & ssid->proto)) {
 340                         wpa_printf(MSG_DEBUG, "   skip WPA IE - proto "
 341                                    "mismatch");
 342                         break;
 343                 }
 344
 345                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 346                         wpa_printf(MSG_DEBUG, "   skip WPA IE - PTK cipher "
 347                                    "mismatch");
 348                         break;
 349                 }
 350
 351                 if (!(ie.group_cipher & ssid->group_cipher)) {
 352                         wpa_printf(MSG_DEBUG, "   skip WPA IE - GTK cipher "
 353                                    "mismatch");
 354                         break;
 355                 }
 356
 357                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 358                         wpa_printf(MSG_DEBUG, "   skip WPA IE - key mgmt "
 359                                    "mismatch");
 360                         break;
 361                 }
 362
 363                 wpa_printf(MSG_DEBUG, "   selected based on WPA IE");
 364                 return 1;
 365         }
 366
 367         if (proto_match == 0)
 368                 wpa_printf(MSG_DEBUG, "   skip - no WPA/RSN proto match");
 369
 370         return 0;
 371 }
 372
 373
 374 static struct wpa_scan_res *
 375 wpa_supplicant_select_bss_wpa(struct wpa_supplicant *wpa_s,
 376                               struct wpa_ssid *group,
 377                               struct wpa_ssid **selected_ssid)
 378 {
 379         struct wpa_ssid *ssid;
 380         struct wpa_scan_res *bss;
 381         size_t i;
 382         struct wpa_blacklist *e;
 383         const u8 *ie;
 384
 385         wpa_printf(MSG_DEBUG, "Try to find WPA-enabled AP");
 386         for (i = 0; i < wpa_s->scan_res->num; i++) {
 387                 const u8 *ssid_;
 388                 u8 wpa_ie_len, rsn_ie_len, ssid_len;
 389                 bss = wpa_s->scan_res->res[i];
 390
 391                 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
 392                 ssid_ = ie ? ie + 2 : (u8 *) "";
 393                 ssid_len = ie ? ie[1] : 0;
 394
 395                 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 396                 wpa_ie_len = ie ? ie[1] : 0;
 397
 398                 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 399                 rsn_ie_len = ie ? ie[1] : 0;
 400
 401                 wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
 402                            "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x",
 403                            (int) i, MAC2STR(bss->bssid),
 404                            wpa_ssid_txt(ssid_, ssid_len),
 405                            wpa_ie_len, rsn_ie_len, bss->caps);
 406
 407                 e = wpa_blacklist_get(wpa_s, bss->bssid);
 408                 if (e && e->count > 1) {
 409                         wpa_printf(MSG_DEBUG, "   skip - blacklisted");
 410                         continue;
 411                 }
 412
 413                 if (wpa_ie_len == 0 && rsn_ie_len == 0) {
 414                         wpa_printf(MSG_DEBUG, "   skip - no WPA/RSN IE");
 415                         continue;
 416                 }
 417
 418                 for (ssid = group; ssid; ssid = ssid->pnext) {
 419                         int check_ssid = 1;
 420
 421                         if (ssid->disabled) {
 422                                 wpa_printf(MSG_DEBUG, "   skip - disabled");
 423                                 continue;
 424                         }
 425
 426 #ifdef CONFIG_WPS
 427                         if (ssid->ssid_len == 0 &&
 428                             wpas_wps_ssid_wildcard_ok(ssid, bss))
 429                                 check_ssid = 0;
 430 #endif /* CONFIG_WPS */
 431
 432                         if (check_ssid &&
 433                             (ssid_len != ssid->ssid_len ||
 434                              os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
 435                                 wpa_printf(MSG_DEBUG, "   skip - "
 436                                            "SSID mismatch");
 437                                 continue;
 438                         }
 439
 440                         if (ssid->bssid_set &&
 441                             os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0)
 442                         {
 443                                 wpa_printf(MSG_DEBUG, "   skip - "
 444                                            "BSSID mismatch");
 445                                 continue;
 446                         }
 447
 448                         if (!wpa_supplicant_ssid_bss_match(ssid, bss))
 449                                 continue;
 450
 451                         wpa_printf(MSG_DEBUG, "   selected WPA AP "
 452                                    MACSTR " ssid='%s'",
 453                                    MAC2STR(bss->bssid),
 454                                    wpa_ssid_txt(ssid_, ssid_len));
 455                         *selected_ssid = ssid;
 456                         return bss;
 457                 }
 458         }
 459
 460         return NULL;
 461 }
 462
 463
 464 static struct wpa_scan_res *
 465 wpa_supplicant_select_bss_non_wpa(struct wpa_supplicant *wpa_s,
 466                                   struct wpa_ssid *group,
 467                                   struct wpa_ssid **selected_ssid)
 468 {
 469         struct wpa_ssid *ssid;
 470         struct wpa_scan_res *bss;
 471         size_t i;
 472         struct wpa_blacklist *e;
 473         const u8 *ie;
 474
 475         wpa_printf(MSG_DEBUG, "Try to find non-WPA AP");
 476         for (i = 0; i < wpa_s->scan_res->num; i++) {
 477                 const u8 *ssid_;
 478                 u8 wpa_ie_len, rsn_ie_len, ssid_len;
 479                 bss = wpa_s->scan_res->res[i];
 480
 481                 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
 482                 ssid_ = ie ? ie + 2 : (u8 *) "";
 483                 ssid_len = ie ? ie[1] : 0;
 484
 485                 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 486                 wpa_ie_len = ie ? ie[1] : 0;
 487
 488                 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 489                 rsn_ie_len = ie ? ie[1] : 0;
 490
 491                 wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
 492                            "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x",
 493                            (int) i, MAC2STR(bss->bssid),
 494                            wpa_ssid_txt(ssid_, ssid_len),
 495                            wpa_ie_len, rsn_ie_len, bss->caps);
 496
 497                 e = wpa_blacklist_get(wpa_s, bss->bssid);
 498                 if (e && e->count > 1) {
 499                         wpa_printf(MSG_DEBUG, "   skip - blacklisted");
 500                         continue;
 501                 }
 502
 503                 for (ssid = group; ssid; ssid = ssid->pnext) {
 504                         int check_ssid = ssid->ssid_len != 0;
 505
 506                         if (ssid->disabled) {
 507                                 wpa_printf(MSG_DEBUG, "   skip - disabled");
 508                                 continue;
 509                         }
 510
 511 #ifdef CONFIG_WPS
 512                         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 513                                 /* Only allow wildcard SSID match if an AP
 514                                  * advertises active WPS operation that matches
 515                                  * with our mode. */
 516                                 check_ssid = 1;
 517                                 if (ssid->ssid_len == 0 &&
 518                                     wpas_wps_ssid_wildcard_ok(ssid, bss))
 519                                         check_ssid = 0;
 520                         }
 521 #endif /* CONFIG_WPS */
 522
 523                         if (check_ssid &&
 524                             (ssid_len != ssid->ssid_len ||
 525                              os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
 526                                 wpa_printf(MSG_DEBUG, "   skip - "
 527                                            "SSID mismatch");
 528                                 continue;
 529                         }
 530
 531                         if (ssid->bssid_set &&
 532                             os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0)
 533                         {
 534                                 wpa_printf(MSG_DEBUG, "   skip - "
 535                                            "BSSID mismatch");
 536                                 continue;
 537                         }
 538
 539                         if (!(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
 540                             !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
 541                             !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA))
 542                         {
 543                                 wpa_printf(MSG_DEBUG, "   skip - "
 544                                            "non-WPA network not allowed");
 545                                 continue;
 546                         }
 547
 548                         if ((ssid->key_mgmt &
 549                              (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK |
 550                               WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_FT_PSK |
 551                               WPA_KEY_MGMT_IEEE8021X_SHA256 |
 552                               WPA_KEY_MGMT_PSK_SHA256)) &&
 553                             (wpa_ie_len != 0 || rsn_ie_len != 0)) {
 554                                 wpa_printf(MSG_DEBUG, "   skip - "
 555                                            "WPA network");
 556                                 continue;
 557                         }
 558
 559                         if (!wpa_supplicant_match_privacy(bss, ssid)) {
 560                                 wpa_printf(MSG_DEBUG, "   skip - "
 561                                            "privacy mismatch");
 562                                 continue;
 563                         }
 564
 565                         if (bss->caps & IEEE80211_CAP_IBSS) {
 566                                 wpa_printf(MSG_DEBUG, "   skip - "
 567                                            "IBSS (adhoc) network");
 568                                 continue;
 569                         }
 570
 571                         wpa_printf(MSG_DEBUG, "   selected non-WPA AP "
 572                                    MACSTR " ssid='%s'",
 573                                    MAC2STR(bss->bssid),
 574                                    wpa_ssid_txt(ssid_, ssid_len));
 575                         *selected_ssid = ssid;
 576                         return bss;
 577                 }
 578         }
 579
 580         return NULL;
 581 }
 582
 583
 584 static struct wpa_scan_res *
 585 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, struct wpa_ssid *group,
 586                           struct wpa_ssid **selected_ssid)
 587 {
 588         struct wpa_scan_res *selected;
 589
 590         wpa_printf(MSG_DEBUG, "Selecting BSS from priority group %d",
 591                    group->priority);
 592
 593         /* First, try to find WPA-enabled AP */
 594         selected = wpa_supplicant_select_bss_wpa(wpa_s, group, selected_ssid);
 595         if (selected)
 596                 return selected;
 597
 598         /* If no WPA-enabled AP found, try to find non-WPA AP, if configuration
 599          * allows this. */
 600         return wpa_supplicant_select_bss_non_wpa(wpa_s, group, selected_ssid);
 601 }
 602
 603
 604 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s)
 605 {
 606         int prio, timeout;
 607         struct wpa_scan_res *selected = NULL;
 608         struct wpa_ssid *ssid = NULL;
 609
 610         if (wpa_supplicant_get_scan_results(wpa_s) < 0) {
 611                 if (wpa_s->conf->ap_scan == 2)
 612                         return;
 613                 wpa_printf(MSG_DEBUG, "Failed to get scan results - try "
 614                            "scanning again");
 615                 timeout = 1;
 616                 goto req_scan;
 617         }
 618
 619         /*
 620          * Don't post the results if this was the initial cached
 621          * and there were no results.
 622          */
 623         if (wpa_s->scan_res_tried == 1 && wpa_s->conf->ap_scan == 1 &&
 624             wpa_s->scan_res->num == 0) {
 625                 wpa_msg(wpa_s, MSG_DEBUG, "Cached scan results are "
 626                         "empty - not posting");
 627         } else {
 628                 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
 629                 wpa_supplicant_dbus_notify_scan_results(wpa_s);
 630                 wpas_wps_notify_scan_results(wpa_s);
 631         }
 632
 633         if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)) ||
 634             wpa_s->disconnected)
 635                 return;
 636
 637         while (selected == NULL) {
 638                 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
 639                         selected = wpa_supplicant_select_bss(
 640                                 wpa_s, wpa_s->conf->pssid[prio], &ssid);
 641                         if (selected)
 642                                 break;
 643                 }
 644
 645                 if (selected == NULL && wpa_s->blacklist) {
 646                         wpa_printf(MSG_DEBUG, "No APs found - clear blacklist "
 647                                    "and try again");
 648                         wpa_blacklist_clear(wpa_s);
 649                 } else if (selected == NULL) {
 650                         break;
 651                 }
 652         }
 653
 654         if (selected) {
 655                 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
 656                         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
 657                                 "PBC session overlap");
 658                         timeout = 10;
 659                         goto req_scan;
 660                 }
 661
 662                 /* Do not trigger new association unless the BSSID has changed
 663                  * or if reassociation is requested. If we are in process of
 664                  * associating with the selected BSSID, do not trigger new
 665                  * attempt. */
 666                 if (wpa_s->reassociate ||
 667                     (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
 668                      (wpa_s->wpa_state != WPA_ASSOCIATING ||
 669                       os_memcmp(selected->bssid, wpa_s->pending_bssid,
 670                                 ETH_ALEN) != 0))) {
 671                         if (wpa_supplicant_scard_init(wpa_s, ssid)) {
 672                                 wpa_supplicant_req_scan(wpa_s, 10, 0);
 673                                 return;
 674                         }
 675                         wpa_supplicant_associate(wpa_s, selected, ssid);
 676                 } else {
 677                         wpa_printf(MSG_DEBUG, "Already associated with the "
 678                                    "selected AP.");
 679                 }
 680                 rsn_preauth_scan_results(wpa_s->wpa, wpa_s->scan_res);
 681         } else {
 682                 wpa_printf(MSG_DEBUG, "No suitable AP found.");
 683                 timeout = 5;
 684                 goto req_scan;
 685         }
 686
 687         return;
 688
 689 req_scan:
 690         if (wpa_s->scan_res_tried == 1 && wpa_s->conf->ap_scan == 1) {
 691                 /*
 692                  * Quick recovery if the initial scan results were not
 693                  * complete when fetched before the first scan request.
 694                  */
 695                 wpa_s->scan_res_tried++;
 696                 timeout = 0;
 697         }
 698         wpa_supplicant_req_scan(wpa_s, timeout, 0);
 699 }
 700 #endif /* CONFIG_NO_SCAN_PROCESSING */
 701
 702
 703 static void wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
 704                                            union wpa_event_data *data)
 705 {
 706         int l, len, found = 0, wpa_found, rsn_found;
 707         u8 *p;
 708
 709         wpa_printf(MSG_DEBUG, "Association info event");
 710         if (data->assoc_info.req_ies)
 711                 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
 712                             data->assoc_info.req_ies_len);
 713         if (data->assoc_info.resp_ies)
 714                 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
 715                             data->assoc_info.resp_ies_len);
 716         if (data->assoc_info.beacon_ies)
 717                 wpa_hexdump(MSG_DEBUG, "beacon_ies",
 718                             data->assoc_info.beacon_ies,
 719                             data->assoc_info.beacon_ies_len);
 720
 721         p = data->assoc_info.req_ies;
 722         l = data->assoc_info.req_ies_len;
 723
 724         /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
 725         while (p && l >= 2) {
 726                 len = p[1] + 2;
 727                 if (len > l) {
 728                         wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
 729                                     p, l);
 730                         break;
 731                 }
 732                 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
 733                      (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
 734                     (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
 735                         if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
 736                                 break;
 737                         found = 1;
 738                         wpa_find_assoc_pmkid(wpa_s);
 739                         break;
 740                 }
 741                 l -= len;
 742                 p += len;
 743         }
 744         if (!found && data->assoc_info.req_ies)
 745                 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
 746
 747         /* WPA/RSN IE from Beacon/ProbeResp */
 748         p = data->assoc_info.beacon_ies;
 749         l = data->assoc_info.beacon_ies_len;
 750
 751         /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
 752          */
 753         wpa_found = rsn_found = 0;
 754         while (p && l >= 2) {
 755                 len = p[1] + 2;
 756                 if (len > l) {
 757                         wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
 758                                     p, l);
 759                         break;
 760                 }
 761                 if (!wpa_found &&
 762                     p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
 763                     os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
 764                         wpa_found = 1;
 765                         wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
 766                 }
 767
 768                 if (!rsn_found &&
 769                     p[0] == WLAN_EID_RSN && p[1] >= 2) {
 770                         rsn_found = 1;
 771                         wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
 772                 }
 773
 774                 l -= len;
 775                 p += len;
 776         }
 777
 778         if (!wpa_found && data->assoc_info.beacon_ies)
 779                 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
 780         if (!rsn_found && data->assoc_info.beacon_ies)
 781                 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
 782         if (wpa_found || rsn_found)
 783                 wpa_s->ap_ies_from_associnfo = 1;
 784 }
 785
 786
 787 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
 788                                        union wpa_event_data *data)
 789 {
 790         u8 bssid[ETH_ALEN];
 791         int ft_completed = wpa_ft_is_completed(wpa_s->wpa);
 792
 793         if (data)
 794                 wpa_supplicant_event_associnfo(wpa_s, data);
 795
 796         wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
 797         if (wpa_s->use_client_mlme)
 798                 os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
 799         if (wpa_s->use_client_mlme ||
 800             (wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
 801              os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0)) {
 802                 wpa_msg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
 803                         MACSTR, MAC2STR(bssid));
 804                 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
 805                 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
 806                 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
 807                         wpa_clear_keys(wpa_s, bssid);
 808                 }
 809                 if (wpa_supplicant_select_config(wpa_s) < 0) {
 810                         wpa_supplicant_disassociate(
 811                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
 812                         return;
 813                 }
 814         }
 815
 816         wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
 817         if (wpa_s->current_ssid) {
 818                 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
 819                  * initialized before association, but for other modes,
 820                  * initialize PC/SC here, if the current configuration needs
 821                  * smartcard or SIM/USIM. */
 822                 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
 823         }
 824         wpa_sm_notify_assoc(wpa_s->wpa, bssid);
 825         l2_packet_notify_auth_start(wpa_s->l2);
 826
 827         /*
 828          * Set portEnabled first to FALSE in order to get EAP state machine out
 829          * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
 830          * state machine may transit to AUTHENTICATING state based on obsolete
 831          * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
 832          * AUTHENTICATED without ever giving chance to EAP state machine to
 833          * reset the state.
 834          */
 835         if (!ft_completed) {
 836                 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
 837                 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
 838         }
 839         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
 840                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
 841         /* 802.1X::portControl = Auto */
 842         eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
 843         wpa_s->eapol_received = 0;
 844         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
 845             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
 846                 wpa_supplicant_cancel_auth_timeout(wpa_s);
 847                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 848         } else if (!ft_completed) {
 849                 /* Timeout for receiving the first EAPOL packet */
 850                 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
 851         }
 852         wpa_supplicant_cancel_scan(wpa_s);
 853
 854         if (wpa_s->driver_4way_handshake &&
 855             wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
 856                 /*
 857                  * We are done; the driver will take care of RSN 4-way
 858                  * handshake.
 859                  */
 860                 wpa_supplicant_cancel_auth_timeout(wpa_s);
 861                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 862                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
 863                 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
 864         }
 865 }
 866
 867
 868 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s)
 869 {
 870         const u8 *bssid;
 871
 872         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
 873                 /*
 874                  * At least Host AP driver and a Prism3 card seemed to be
 875                  * generating streams of disconnected events when configuring
 876                  * IBSS for WPA-None. Ignore them for now.
 877                  */
 878                 wpa_printf(MSG_DEBUG, "Disconnect event - ignore in "
 879                            "IBSS/WPA-None mode");
 880                 return;
 881         }
 882
 883         if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
 884             wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
 885                 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
 886                         "pre-shared key may be incorrect");
 887         }
 888         if (wpa_s->wpa_state >= WPA_ASSOCIATED)
 889                 wpa_supplicant_req_scan(wpa_s, 0, 100000);
 890         bssid = wpa_s->bssid;
 891         if (is_zero_ether_addr(bssid))
 892                 bssid = wpa_s->pending_bssid;
 893         wpa_blacklist_add(wpa_s, bssid);
 894         wpa_sm_notify_disassoc(wpa_s->wpa);
 895         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "- Disconnect event - "
 896                 "remove keys");
 897         if (wpa_supplicant_dynamic_keys(wpa_s)) {
 898                 wpa_s->keys_cleared = 0;
 899                 wpa_clear_keys(wpa_s, wpa_s->bssid);
 900         }
 901         wpa_supplicant_mark_disassoc(wpa_s);
 902 }
 903
 904
 905 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
 906 static void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx,
 907                                                     void *sock_ctx)
 908 {
 909         struct wpa_supplicant *wpa_s = eloop_ctx;
 910
 911         if (!wpa_s->pending_mic_error_report)
 912                 return;
 913
 914         wpa_printf(MSG_DEBUG, "WPA: Sending pending MIC error report");
 915         wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
 916         wpa_s->pending_mic_error_report = 0;
 917 }
 918 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
 919
 920
 921 static void
 922 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
 923                                          union wpa_event_data *data)
 924 {
 925         int pairwise;
 926         struct os_time t;
 927
 928         wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
 929         pairwise = (data && data->michael_mic_failure.unicast);
 930         os_get_time(&t);
 931         if ((wpa_s->last_michael_mic_error &&
 932              t.sec - wpa_s->last_michael_mic_error <= 60) ||
 933             wpa_s->pending_mic_error_report) {
 934                 if (wpa_s->pending_mic_error_report) {
 935                         /*
 936                          * Send the pending MIC error report immediately since
 937                          * we are going to start countermeasures and AP better
 938                          * do the same.
 939                          */
 940                         wpa_sm_key_request(wpa_s->wpa, 1,
 941                                            wpa_s->pending_mic_error_pairwise);
 942                 }
 943
 944                 /* Send the new MIC error report immediately since we are going
 945                  * to start countermeasures and AP better do the same.
 946                  */
 947                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
 948
 949                 /* initialize countermeasures */
 950                 wpa_s->countermeasures = 1;
 951                 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
 952
 953                 /*
 954                  * Need to wait for completion of request frame. We do not get
 955                  * any callback for the message completion, so just wait a
 956                  * short while and hope for the best. */
 957                 os_sleep(0, 10000);
 958
 959                 wpa_drv_set_countermeasures(wpa_s, 1);
 960                 wpa_supplicant_deauthenticate(wpa_s,
 961                                               WLAN_REASON_MICHAEL_MIC_FAILURE);
 962                 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
 963                                      wpa_s, NULL);
 964                 eloop_register_timeout(60, 0,
 965                                        wpa_supplicant_stop_countermeasures,
 966                                        wpa_s, NULL);
 967                 /* TODO: mark the AP rejected for 60 second. STA is
 968                  * allowed to associate with another AP.. */
 969         } else {
 970 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
 971                 if (wpa_s->mic_errors_seen) {
 972                         /*
 973                          * Reduce the effectiveness of Michael MIC error
 974                          * reports as a means for attacking against TKIP if
 975                          * more than one MIC failure is noticed with the same
 976                          * PTK. We delay the transmission of the reports by a
 977                          * random time between 0 and 60 seconds in order to
 978                          * force the attacker wait 60 seconds before getting
 979                          * the information on whether a frame resulted in a MIC
 980                          * failure.
 981                          */
 982                         u8 rval[4];
 983                         int sec;
 984
 985                         if (os_get_random(rval, sizeof(rval)) < 0)
 986                                 sec = os_random() % 60;
 987                         else
 988                                 sec = WPA_GET_BE32(rval) % 60;
 989                         wpa_printf(MSG_DEBUG, "WPA: Delay MIC error report %d "
 990                                    "seconds", sec);
 991                         wpa_s->pending_mic_error_report = 1;
 992                         wpa_s->pending_mic_error_pairwise = pairwise;
 993                         eloop_cancel_timeout(
 994                                 wpa_supplicant_delayed_mic_error_report,
 995                                 wpa_s, NULL);
 996                         eloop_register_timeout(
 997                                 sec, os_random() % 1000000,
 998                                 wpa_supplicant_delayed_mic_error_report,
 999                                 wpa_s, NULL);
1000                 } else {
1001                         wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1002                 }
1003 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1004                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1005 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1006         }
1007         wpa_s->last_michael_mic_error = t.sec;
1008         wpa_s->mic_errors_seen++;
1009 }
1010
1011
1012 static void
1013 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
1014                                       union wpa_event_data *data)
1015 {
1016         if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
1017                 return;
1018
1019         switch (data->interface_status.ievent) {
1020         case EVENT_INTERFACE_ADDED:
1021                 if (!wpa_s->interface_removed)
1022                         break;
1023                 wpa_s->interface_removed = 0;
1024                 wpa_printf(MSG_DEBUG, "Configured interface was added.");
1025                 if (wpa_supplicant_driver_init(wpa_s) < 0) {
1026                         wpa_printf(MSG_INFO, "Failed to initialize the driver "
1027                                    "after interface was added.");
1028                 }
1029                 break;
1030         case EVENT_INTERFACE_REMOVED:
1031                 wpa_printf(MSG_DEBUG, "Configured interface was removed.");
1032                 wpa_s->interface_removed = 1;
1033                 wpa_supplicant_mark_disassoc(wpa_s);
1034                 l2_packet_deinit(wpa_s->l2);
1035                 wpa_s->l2 = NULL;
1036                 break;
1037         }
1038 }
1039
1040
1041 #ifdef CONFIG_PEERKEY
1042 static void
1043 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
1044                               union wpa_event_data *data)
1045 {
1046         if (data == NULL)
1047                 return;
1048         wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
1049 }
1050 #endif /* CONFIG_PEERKEY */
1051
1052
1053 #ifdef CONFIG_IEEE80211R
1054 static void
1055 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
1056                                  union wpa_event_data *data)
1057 {
1058         if (data == NULL)
1059                 return;
1060
1061         if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
1062                                     data->ft_ies.ies_len,
1063                                     data->ft_ies.ft_action,
1064                                     data->ft_ies.target_ap) < 0) {
1065                 /* TODO: prevent MLME/driver from trying to associate? */
1066         }
1067 }
1068 #endif /* CONFIG_IEEE80211R */
1069
1070
1071 #ifdef CONFIG_IBSS_RSN
1072 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
1073                                                 union wpa_event_data *data)
1074 {
1075         if (data == NULL)
1076                 return;
1077         ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
1078 }
1079 #endif /* CONFIG_IBSS_RSN */
1080
1081
1082 void wpa_supplicant_event(void *ctx, wpa_event_type event,
1083                           union wpa_event_data *data)
1084 {
1085         struct wpa_supplicant *wpa_s = ctx;
1086
1087         switch (event) {
1088         case EVENT_ASSOC:
1089                 wpa_supplicant_event_assoc(wpa_s, data);
1090                 break;
1091         case EVENT_DISASSOC:
1092                 wpa_supplicant_event_disassoc(wpa_s);
1093                 break;
1094         case EVENT_MICHAEL_MIC_FAILURE:
1095                 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
1096                 break;
1097 #ifndef CONFIG_NO_SCAN_PROCESSING
1098         case EVENT_SCAN_RESULTS:
1099                 wpa_supplicant_event_scan_results(wpa_s);
1100                 break;
1101 #endif /* CONFIG_NO_SCAN_PROCESSING */
1102         case EVENT_ASSOCINFO:
1103                 wpa_supplicant_event_associnfo(wpa_s, data);
1104                 break;
1105         case EVENT_INTERFACE_STATUS:
1106                 wpa_supplicant_event_interface_status(wpa_s, data);
1107                 break;
1108         case EVENT_PMKID_CANDIDATE:
1109                 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
1110                 break;
1111 #ifdef CONFIG_PEERKEY
1112         case EVENT_STKSTART:
1113                 wpa_supplicant_event_stkstart(wpa_s, data);
1114                 break;
1115 #endif /* CONFIG_PEERKEY */
1116 #ifdef CONFIG_IEEE80211R
1117         case EVENT_FT_RESPONSE:
1118                 wpa_supplicant_event_ft_response(wpa_s, data);
1119                 break;
1120 #endif /* CONFIG_IEEE80211R */
1121 #ifdef CONFIG_IBSS_RSN
1122         case EVENT_IBSS_RSN_START:
1123                 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
1124                 break;
1125 #endif /* CONFIG_IBSS_RSN */
1126         default:
1127                 wpa_printf(MSG_INFO, "Unknown event %d", event);
1128                 break;
1129         }
1130 }