contrib/wpa_supplicant/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
  36
  37 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
  38 {
  39         struct wpa_ssid *ssid;
  40
  41         if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
  42                 return 0;
  43
  44         wpa_printf(MSG_DEBUG, "Select network based on association "
  45                    "information");
  46         ssid = wpa_supplicant_get_ssid(wpa_s);
  47         if (ssid == NULL) {
  48                 wpa_printf(MSG_INFO, "No network configuration found for the "
  49                            "current AP");
  50                 return -1;
  51         }
  52
  53         if (ssid->disabled) {
  54                 wpa_printf(MSG_DEBUG, "Selected network is disabled");
  55                 return -1;
  56         }
  57
  58         wpa_printf(MSG_DEBUG, "Network configuration found for the current "
  59                    "AP");
  60         if (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
  61                               WPA_KEY_MGMT_WPA_NONE |
  62                               WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X |
  63                               WPA_KEY_MGMT_PSK_SHA256 |
  64                               WPA_KEY_MGMT_IEEE8021X_SHA256)) {
  65                 u8 wpa_ie[80];
  66                 size_t wpa_ie_len = sizeof(wpa_ie);
  67                 wpa_supplicant_set_suites(wpa_s, NULL, ssid,
  68                                           wpa_ie, &wpa_ie_len);
  69         } else {
  70                 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
  71         }
  72
  73         if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
  74                 eapol_sm_invalidate_cached_session(wpa_s->eapol);
  75         wpa_s->current_ssid = ssid;
  76         wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
  77         wpa_supplicant_initiate_eapol(wpa_s);
  78
  79         return 0;
  80 }
  81
  82
  83 static void wpa_supplicant_stop_countermeasures(void *eloop_ctx,
  84                                                 void *sock_ctx)
  85 {
  86         struct wpa_supplicant *wpa_s = eloop_ctx;
  87
  88         if (wpa_s->countermeasures) {
  89                 wpa_s->countermeasures = 0;
  90                 wpa_drv_set_countermeasures(wpa_s, 0);
  91                 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
  92                 wpa_supplicant_req_scan(wpa_s, 0, 0);
  93         }
  94 }
  95
  96
  97 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
  98 {
  99         wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
 100         os_memset(wpa_s->bssid, 0, ETH_ALEN);
 101         os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
 102         eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
 103         eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
 104         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
 105                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
 106         wpa_s->ap_ies_from_associnfo = 0;
 107 }
 108
 109
 110 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
 111 {
 112         struct wpa_ie_data ie;
 113         int pmksa_set = -1;
 114         size_t i;
 115
 116         if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
 117             ie.pmkid == NULL)
 118                 return;
 119
 120         for (i = 0; i < ie.num_pmkid; i++) {
 121                 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
 122                                                     ie.pmkid + i * PMKID_LEN,
 123                                                     NULL, NULL, 0);
 124                 if (pmksa_set == 0) {
 125                         eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
 126                         break;
 127                 }
 128         }
 129
 130         wpa_printf(MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from PMKSA "
 131                    "cache", pmksa_set == 0 ? "" : "not ");
 132 }
 133
 134
 135 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
 136                                                  union wpa_event_data *data)
 137 {
 138         if (data == NULL) {
 139                 wpa_printf(MSG_DEBUG, "RSN: No data in PMKID candidate event");
 140                 return;
 141         }
 142         wpa_printf(MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
 143                    " index=%d preauth=%d",
 144                    MAC2STR(data->pmkid_candidate.bssid),
 145                    data->pmkid_candidate.index,
 146                    data->pmkid_candidate.preauth);
 147
 148         pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
 149                             data->pmkid_candidate.index,
 150                             data->pmkid_candidate.preauth);
 151 }
 152
 153
 154 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
 155 {
 156         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
 157             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
 158                 return 0;
 159
 160 #ifdef IEEE8021X_EAPOL
 161         if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
 162             wpa_s->current_ssid &&
 163             !(wpa_s->current_ssid->eapol_flags &
 164               (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 165                EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
 166                 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
 167                  * plaintext or static WEP keys). */
 168                 return 0;
 169         }
 170 #endif /* IEEE8021X_EAPOL */
 171
 172         return 1;
 173 }
 174
 175
 176 /**
 177  * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
 178  * @wpa_s: pointer to wpa_supplicant data
 179  * @ssid: Configuration data for the network
 180  * Returns: 0 on success, -1 on failure
 181  *
 182  * This function is called when starting authentication with a network that is
 183  * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
 184  */
 185 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 186                               struct wpa_ssid *ssid)
 187 {
 188 #ifdef IEEE8021X_EAPOL
 189         int aka = 0, sim = 0, type;
 190
 191         if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
 192                 return 0;
 193
 194         if (ssid->eap.eap_methods == NULL) {
 195                 sim = 1;
 196                 aka = 1;
 197         } else {
 198                 struct eap_method_type *eap = ssid->eap.eap_methods;
 199                 while (eap->vendor != EAP_VENDOR_IETF ||
 200                        eap->method != EAP_TYPE_NONE) {
 201                         if (eap->vendor == EAP_VENDOR_IETF) {
 202                                 if (eap->method == EAP_TYPE_SIM)
 203                                         sim = 1;
 204                                 else if (eap->method == EAP_TYPE_AKA)
 205                                         aka = 1;
 206                         }
 207                         eap++;
 208                 }
 209         }
 210
 211         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
 212                 sim = 0;
 213         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL)
 214                 aka = 0;
 215
 216         if (!sim && !aka) {
 217                 wpa_printf(MSG_DEBUG, "Selected network is configured to use "
 218                            "SIM, but neither EAP-SIM nor EAP-AKA are enabled");
 219                 return 0;
 220         }
 221
 222         wpa_printf(MSG_DEBUG, "Selected network is configured to use SIM "
 223                    "(sim=%d aka=%d) - initialize PCSC", sim, aka);
 224         if (sim && aka)
 225                 type = SCARD_TRY_BOTH;
 226         else if (aka)
 227                 type = SCARD_USIM_ONLY;
 228         else
 229                 type = SCARD_GSM_SIM_ONLY;
 230
 231         wpa_s->scard = scard_init(type);
 232         if (wpa_s->scard == NULL) {
 233                 wpa_printf(MSG_WARNING, "Failed to initialize SIM "
 234                            "(pcsc-lite)");
 235                 return -1;
 236         }
 237         wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
 238         eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
 239 #endif /* IEEE8021X_EAPOL */
 240
 241         return 0;
 242 }
 243
 244
 245 #ifndef CONFIG_NO_SCAN_PROCESSING
 246 static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
 247                                         struct wpa_ssid *ssid)
 248 {
 249         int i, privacy = 0;
 250
 251         if (ssid->mixed_cell)
 252                 return 1;
 253
 254 #ifdef CONFIG_WPS
 255         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
 256                 return 1;
 257 #endif /* CONFIG_WPS */
 258
 259         for (i = 0; i < NUM_WEP_KEYS; i++) {
 260                 if (ssid->wep_key_len[i]) {
 261                         privacy = 1;
 262                         break;
 263                 }
 264         }
 265 #ifdef IEEE8021X_EAPOL
 266         if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
 267             ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 268                                  EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
 269                 privacy = 1;
 270 #endif /* IEEE8021X_EAPOL */
 271
 272         if (bss->caps & IEEE80211_CAP_PRIVACY)
 273                 return privacy;
 274         return !privacy;
 275 }
 276
 277
 278 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
 279                                          struct wpa_ssid *ssid,
 280                                          struct wpa_scan_res *bss)
 281 {
 282         struct wpa_ie_data ie;
 283         int proto_match = 0;
 284         const u8 *rsn_ie, *wpa_ie;
 285         int ret;
 286
 287         ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
 288         if (ret >= 0)
 289                 return ret;
 290
 291         rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 292         while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
 293                 proto_match++;
 294
 295                 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
 296                         wpa_printf(MSG_DEBUG, "   skip RSN IE - parse failed");
 297                         break;
 298                 }
 299                 if (!(ie.proto & ssid->proto)) {
 300                         wpa_printf(MSG_DEBUG, "   skip RSN IE - proto "
 301                                    "mismatch");
 302                         break;
 303                 }
 304
 305                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 306                         wpa_printf(MSG_DEBUG, "   skip RSN IE - PTK cipher "
 307                                    "mismatch");
 308                         break;
 309                 }
 310
 311                 if (!(ie.group_cipher & ssid->group_cipher)) {
 312                         wpa_printf(MSG_DEBUG, "   skip RSN IE - GTK cipher "
 313                                    "mismatch");
 314                         break;
 315                 }
 316
 317                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 318                         wpa_printf(MSG_DEBUG, "   skip RSN IE - key mgmt "
 319                                    "mismatch");
 320                         break;
 321                 }
 322
 323 #ifdef CONFIG_IEEE80211W
 324                 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
 325                     ssid->ieee80211w == IEEE80211W_REQUIRED) {
 326                         wpa_printf(MSG_DEBUG, "   skip RSN IE - no mgmt frame "
 327                                    "protection");
 328                         break;
 329                 }
 330 #endif /* CONFIG_IEEE80211W */
 331
 332                 wpa_printf(MSG_DEBUG, "   selected based on RSN IE");
 333                 return 1;
 334         }
 335
 336         wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 337         while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
 338                 proto_match++;
 339
 340                 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
 341                         wpa_printf(MSG_DEBUG, "   skip WPA IE - parse failed");
 342                         break;
 343                 }
 344                 if (!(ie.proto & ssid->proto)) {
 345                         wpa_printf(MSG_DEBUG, "   skip WPA IE - proto "
 346                                    "mismatch");
 347                         break;
 348                 }
 349
 350                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 351                         wpa_printf(MSG_DEBUG, "   skip WPA IE - PTK cipher "
 352                                    "mismatch");
 353                         break;
 354                 }
 355
 356                 if (!(ie.group_cipher & ssid->group_cipher)) {
 357                         wpa_printf(MSG_DEBUG, "   skip WPA IE - GTK cipher "
 358                                    "mismatch");
 359                         break;
 360                 }
 361
 362                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 363                         wpa_printf(MSG_DEBUG, "   skip WPA IE - key mgmt "
 364                                    "mismatch");
 365                         break;
 366                 }
 367
 368                 wpa_printf(MSG_DEBUG, "   selected based on WPA IE");
 369                 return 1;
 370         }
 371
 372         if (proto_match == 0)
 373                 wpa_printf(MSG_DEBUG, "   skip - no WPA/RSN proto match");
 374
 375         return 0;
 376 }
 377
 378
 379 static struct wpa_scan_res *
 380 wpa_supplicant_select_bss_wpa(struct wpa_supplicant *wpa_s,
 381                               struct wpa_ssid *group,
 382                               struct wpa_ssid **selected_ssid)
 383 {
 384         struct wpa_ssid *ssid;
 385         struct wpa_scan_res *bss;
 386         size_t i;
 387         struct wpa_blacklist *e;
 388         const u8 *ie;
 389
 390         wpa_printf(MSG_DEBUG, "Try to find WPA-enabled AP");
 391         for (i = 0; i < wpa_s->scan_res->num; i++) {
 392                 const u8 *ssid_;
 393                 u8 wpa_ie_len, rsn_ie_len, ssid_len;
 394                 bss = wpa_s->scan_res->res[i];
 395
 396                 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
 397                 ssid_ = ie ? ie + 2 : (u8 *) "";
 398                 ssid_len = ie ? ie[1] : 0;
 399
 400                 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 401                 wpa_ie_len = ie ? ie[1] : 0;
 402
 403                 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 404                 rsn_ie_len = ie ? ie[1] : 0;
 405
 406                 wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
 407                            "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x",
 408                            (int) i, MAC2STR(bss->bssid),
 409                            wpa_ssid_txt(ssid_, ssid_len),
 410                            wpa_ie_len, rsn_ie_len, bss->caps);
 411
 412                 e = wpa_blacklist_get(wpa_s, bss->bssid);
 413                 if (e && e->count > 1) {
 414                         wpa_printf(MSG_DEBUG, "   skip - blacklisted");
 415                         continue;
 416                 }
 417
 418                 if (ssid_len == 0) {
 419                         wpa_printf(MSG_DEBUG, "   skip - SSID not known");
 420                         continue;
 421                 }
 422
 423                 if (wpa_ie_len == 0 && rsn_ie_len == 0) {
 424                         wpa_printf(MSG_DEBUG, "   skip - no WPA/RSN IE");
 425                         continue;
 426                 }
 427
 428                 for (ssid = group; ssid; ssid = ssid->pnext) {
 429                         int check_ssid = 1;
 430
 431                         if (ssid->disabled) {
 432                                 wpa_printf(MSG_DEBUG, "   skip - disabled");
 433                                 continue;
 434                         }
 435
 436 #ifdef CONFIG_WPS
 437                         if (ssid->ssid_len == 0 &&
 438                             wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
 439                                 check_ssid = 0;
 440 #endif /* CONFIG_WPS */
 441
 442                         if (check_ssid &&
 443                             (ssid_len != ssid->ssid_len ||
 444                              os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
 445                                 wpa_printf(MSG_DEBUG, "   skip - "
 446                                            "SSID mismatch");
 447                                 continue;
 448                         }
 449
 450                         if (ssid->bssid_set &&
 451                             os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0)
 452                         {
 453                                 wpa_printf(MSG_DEBUG, "   skip - "
 454                                            "BSSID mismatch");
 455                                 continue;
 456                         }
 457
 458                         if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
 459                                 continue;
 460
 461                         wpa_printf(MSG_DEBUG, "   selected WPA AP "
 462                                    MACSTR " ssid='%s'",
 463                                    MAC2STR(bss->bssid),
 464                                    wpa_ssid_txt(ssid_, ssid_len));
 465                         *selected_ssid = ssid;
 466                         return bss;
 467                 }
 468         }
 469
 470         return NULL;
 471 }
 472
 473
 474 static struct wpa_scan_res *
 475 wpa_supplicant_select_bss_non_wpa(struct wpa_supplicant *wpa_s,
 476                                   struct wpa_ssid *group,
 477                                   struct wpa_ssid **selected_ssid)
 478 {
 479         struct wpa_ssid *ssid;
 480         struct wpa_scan_res *bss;
 481         size_t i;
 482         struct wpa_blacklist *e;
 483         const u8 *ie;
 484
 485         wpa_printf(MSG_DEBUG, "Try to find non-WPA AP");
 486         for (i = 0; i < wpa_s->scan_res->num; i++) {
 487                 const u8 *ssid_;
 488                 u8 wpa_ie_len, rsn_ie_len, ssid_len;
 489                 bss = wpa_s->scan_res->res[i];
 490
 491                 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
 492                 ssid_ = ie ? ie + 2 : (u8 *) "";
 493                 ssid_len = ie ? ie[1] : 0;
 494
 495                 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 496                 wpa_ie_len = ie ? ie[1] : 0;
 497
 498                 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 499                 rsn_ie_len = ie ? ie[1] : 0;
 500
 501                 wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
 502                            "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x",
 503                            (int) i, MAC2STR(bss->bssid),
 504                            wpa_ssid_txt(ssid_, ssid_len),
 505                            wpa_ie_len, rsn_ie_len, bss->caps);
 506
 507                 e = wpa_blacklist_get(wpa_s, bss->bssid);
 508                 if (e && e->count > 1) {
 509                         wpa_printf(MSG_DEBUG, "   skip - blacklisted");
 510                         continue;
 511                 }
 512
 513                 if (ssid_len == 0) {
 514                         wpa_printf(MSG_DEBUG, "   skip - SSID not known");
 515                         continue;
 516                 }
 517
 518                 for (ssid = group; ssid; ssid = ssid->pnext) {
 519                         int check_ssid = ssid->ssid_len != 0;
 520
 521                         if (ssid->disabled) {
 522                                 wpa_printf(MSG_DEBUG, "   skip - disabled");
 523                                 continue;
 524                         }
 525
 526 #ifdef CONFIG_WPS
 527                         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 528                                 /* Only allow wildcard SSID match if an AP
 529                                  * advertises active WPS operation that matches
 530                                  * with our mode. */
 531                                 check_ssid = 1;
 532                                 if (ssid->ssid_len == 0 &&
 533                                     wpas_wps_ssid_wildcard_ok(wpa_s, ssid,
 534                                                               bss))
 535                                         check_ssid = 0;
 536                         }
 537 #endif /* CONFIG_WPS */
 538
 539                         if (check_ssid &&
 540                             (ssid_len != ssid->ssid_len ||
 541                              os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
 542                                 wpa_printf(MSG_DEBUG, "   skip - "
 543                                            "SSID mismatch");
 544                                 continue;
 545                         }
 546
 547                         if (ssid->bssid_set &&
 548                             os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0)
 549                         {
 550                                 wpa_printf(MSG_DEBUG, "   skip - "
 551                                            "BSSID mismatch");
 552                                 continue;
 553                         }
 554
 555                         if (!(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
 556                             !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
 557                             !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA))
 558                         {
 559                                 wpa_printf(MSG_DEBUG, "   skip - "
 560                                            "non-WPA network not allowed");
 561                                 continue;
 562                         }
 563
 564                         if ((ssid->key_mgmt &
 565                              (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK |
 566                               WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_FT_PSK |
 567                               WPA_KEY_MGMT_IEEE8021X_SHA256 |
 568                               WPA_KEY_MGMT_PSK_SHA256)) &&
 569                             (wpa_ie_len != 0 || rsn_ie_len != 0)) {
 570                                 wpa_printf(MSG_DEBUG, "   skip - "
 571                                            "WPA network");
 572                                 continue;
 573                         }
 574
 575                         if (!wpa_supplicant_match_privacy(bss, ssid)) {
 576                                 wpa_printf(MSG_DEBUG, "   skip - "
 577                                            "privacy mismatch");
 578                                 continue;
 579                         }
 580
 581                         if (bss->caps & IEEE80211_CAP_IBSS) {
 582                                 wpa_printf(MSG_DEBUG, "   skip - "
 583                                            "IBSS (adhoc) network");
 584                                 continue;
 585                         }
 586
 587                         wpa_printf(MSG_DEBUG, "   selected non-WPA AP "
 588                                    MACSTR " ssid='%s'",
 589                                    MAC2STR(bss->bssid),
 590                                    wpa_ssid_txt(ssid_, ssid_len));
 591                         *selected_ssid = ssid;
 592                         return bss;
 593                 }
 594         }
 595
 596         return NULL;
 597 }
 598
 599
 600 static struct wpa_scan_res *
 601 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, struct wpa_ssid *group,
 602                           struct wpa_ssid **selected_ssid)
 603 {
 604         struct wpa_scan_res *selected;
 605
 606         wpa_printf(MSG_DEBUG, "Selecting BSS from priority group %d",
 607                    group->priority);
 608
 609         /* First, try to find WPA-enabled AP */
 610         selected = wpa_supplicant_select_bss_wpa(wpa_s, group, selected_ssid);
 611         if (selected)
 612                 return selected;
 613
 614         /* If no WPA-enabled AP found, try to find non-WPA AP, if configuration
 615          * allows this. */
 616         return wpa_supplicant_select_bss_non_wpa(wpa_s, group, selected_ssid);
 617 }
 618
 619
 620 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s)
 621 {
 622         int prio, timeout;
 623         struct wpa_scan_res *selected = NULL;
 624         struct wpa_ssid *ssid = NULL;
 625
 626         wpa_supplicant_notify_scanning(wpa_s, 0);
 627
 628         if (wpa_supplicant_get_scan_results(wpa_s) < 0) {
 629                 if (wpa_s->conf->ap_scan == 2)
 630                         return;
 631                 wpa_printf(MSG_DEBUG, "Failed to get scan results - try "
 632                            "scanning again");
 633                 timeout = 1;
 634                 goto req_scan;
 635         }
 636
 637         /*
 638          * Don't post the results if this was the initial cached
 639          * and there were no results.
 640          */
 641         if (wpa_s->scan_res_tried == 1 && wpa_s->conf->ap_scan == 1 &&
 642             wpa_s->scan_res->num == 0) {
 643                 wpa_msg(wpa_s, MSG_DEBUG, "Cached scan results are "
 644                         "empty - not posting");
 645         } else {
 646                 wpa_printf(MSG_DEBUG, "New scan results available");
 647                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
 648                 wpa_supplicant_dbus_notify_scan_results(wpa_s);
 649                 wpas_wps_notify_scan_results(wpa_s);
 650         }
 651
 652         if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
 653                 return;
 654
 655         if (wpa_s->disconnected) {
 656                 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
 657                 return;
 658         }
 659
 660         while (selected == NULL) {
 661                 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
 662                         selected = wpa_supplicant_select_bss(
 663                                 wpa_s, wpa_s->conf->pssid[prio], &ssid);
 664                         if (selected)
 665                                 break;
 666                 }
 667
 668                 if (selected == NULL && wpa_s->blacklist) {
 669                         wpa_printf(MSG_DEBUG, "No APs found - clear blacklist "
 670                                    "and try again");
 671                         wpa_blacklist_clear(wpa_s);
 672                         wpa_s->blacklist_cleared++;
 673                 } else if (selected == NULL) {
 674                         break;
 675                 }
 676         }
 677
 678         if (selected) {
 679                 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
 680                         wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
 681                                 "PBC session overlap");
 682                         timeout = 10;
 683                         goto req_scan;
 684                 }
 685
 686                 /* Do not trigger new association unless the BSSID has changed
 687                  * or if reassociation is requested. If we are in process of
 688                  * associating with the selected BSSID, do not trigger new
 689                  * attempt. */
 690                 if (wpa_s->reassociate ||
 691                     (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
 692                      (wpa_s->wpa_state != WPA_ASSOCIATING ||
 693                       os_memcmp(selected->bssid, wpa_s->pending_bssid,
 694                                 ETH_ALEN) != 0))) {
 695                         if (wpa_supplicant_scard_init(wpa_s, ssid)) {
 696                                 wpa_supplicant_req_scan(wpa_s, 10, 0);
 697                                 return;
 698                         }
 699                         wpa_supplicant_associate(wpa_s, selected, ssid);
 700                 } else {
 701                         wpa_printf(MSG_DEBUG, "Already associated with the "
 702                                    "selected AP.");
 703                 }
 704                 rsn_preauth_scan_results(wpa_s->wpa, wpa_s->scan_res);
 705         } else {
 706                 wpa_printf(MSG_DEBUG, "No suitable AP found.");
 707                 timeout = 5;
 708                 goto req_scan;
 709         }
 710
 711         return;
 712
 713 req_scan:
 714         if (wpa_s->scan_res_tried == 1 && wpa_s->conf->ap_scan == 1) {
 715                 /*
 716                  * Quick recovery if the initial scan results were not
 717                  * complete when fetched before the first scan request.
 718                  */
 719                 wpa_s->scan_res_tried++;
 720                 timeout = 0;
 721         } else if (!wpa_supplicant_enabled_networks(wpa_s->conf)) {
 722                 /*
 723                  * No networks are enabled; short-circuit request so
 724                  * we don't wait timeout seconds before transitioning
 725                  * to INACTIVE state.
 726                  */
 727                 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
 728                 return;
 729         }
 730         wpa_supplicant_req_scan(wpa_s, timeout, 0);
 731 }
 732 #endif /* CONFIG_NO_SCAN_PROCESSING */
 733
 734
 735 static void wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
 736                                            union wpa_event_data *data)
 737 {
 738         int l, len, found = 0, wpa_found, rsn_found;
 739         u8 *p;
 740
 741         wpa_printf(MSG_DEBUG, "Association info event");
 742         if (data->assoc_info.req_ies)
 743                 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
 744                             data->assoc_info.req_ies_len);
 745         if (data->assoc_info.resp_ies)
 746                 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
 747                             data->assoc_info.resp_ies_len);
 748         if (data->assoc_info.beacon_ies)
 749                 wpa_hexdump(MSG_DEBUG, "beacon_ies",
 750                             data->assoc_info.beacon_ies,
 751                             data->assoc_info.beacon_ies_len);
 752
 753         p = data->assoc_info.req_ies;
 754         l = data->assoc_info.req_ies_len;
 755
 756         /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
 757         while (p && l >= 2) {
 758                 len = p[1] + 2;
 759                 if (len > l) {
 760                         wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
 761                                     p, l);
 762                         break;
 763                 }
 764                 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
 765                      (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
 766                     (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
 767                         if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
 768                                 break;
 769                         found = 1;
 770                         wpa_find_assoc_pmkid(wpa_s);
 771                         break;
 772                 }
 773                 l -= len;
 774                 p += len;
 775         }
 776         if (!found && data->assoc_info.req_ies)
 777                 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
 778
 779         /* WPA/RSN IE from Beacon/ProbeResp */
 780         p = data->assoc_info.beacon_ies;
 781         l = data->assoc_info.beacon_ies_len;
 782
 783         /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
 784          */
 785         wpa_found = rsn_found = 0;
 786         while (p && l >= 2) {
 787                 len = p[1] + 2;
 788                 if (len > l) {
 789                         wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
 790                                     p, l);
 791                         break;
 792                 }
 793                 if (!wpa_found &&
 794                     p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
 795                     os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
 796                         wpa_found = 1;
 797                         wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
 798                 }
 799
 800                 if (!rsn_found &&
 801                     p[0] == WLAN_EID_RSN && p[1] >= 2) {
 802                         rsn_found = 1;
 803                         wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
 804                 }
 805
 806                 l -= len;
 807                 p += len;
 808         }
 809
 810         if (!wpa_found && data->assoc_info.beacon_ies)
 811                 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
 812         if (!rsn_found && data->assoc_info.beacon_ies)
 813                 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
 814         if (wpa_found || rsn_found)
 815                 wpa_s->ap_ies_from_associnfo = 1;
 816 }
 817
 818
 819 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
 820                                        union wpa_event_data *data)
 821 {
 822         u8 bssid[ETH_ALEN];
 823         int ft_completed = wpa_ft_is_completed(wpa_s->wpa);
 824
 825         if (data)
 826                 wpa_supplicant_event_associnfo(wpa_s, data);
 827
 828         wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
 829         if (wpa_s->use_client_mlme)
 830                 os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
 831         if (wpa_s->use_client_mlme ||
 832             (wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
 833              os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0)) {
 834                 wpa_msg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
 835                         MACSTR, MAC2STR(bssid));
 836                 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
 837                 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
 838                 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
 839                         wpa_clear_keys(wpa_s, bssid);
 840                 }
 841                 if (wpa_supplicant_select_config(wpa_s) < 0) {
 842                         wpa_supplicant_disassociate(
 843                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
 844                         return;
 845                 }
 846         }
 847
 848         wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
 849         if (wpa_s->current_ssid) {
 850                 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
 851                  * initialized before association, but for other modes,
 852                  * initialize PC/SC here, if the current configuration needs
 853                  * smartcard or SIM/USIM. */
 854                 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
 855         }
 856         wpa_sm_notify_assoc(wpa_s->wpa, bssid);
 857         l2_packet_notify_auth_start(wpa_s->l2);
 858
 859         /*
 860          * Set portEnabled first to FALSE in order to get EAP state machine out
 861          * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
 862          * state machine may transit to AUTHENTICATING state based on obsolete
 863          * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
 864          * AUTHENTICATED without ever giving chance to EAP state machine to
 865          * reset the state.
 866          */
 867         if (!ft_completed) {
 868                 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
 869                 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
 870         }
 871         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
 872                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
 873         /* 802.1X::portControl = Auto */
 874         eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
 875         wpa_s->eapol_received = 0;
 876         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
 877             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
 878                 wpa_supplicant_cancel_auth_timeout(wpa_s);
 879                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 880         } else if (!ft_completed) {
 881                 /* Timeout for receiving the first EAPOL packet */
 882                 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
 883         }
 884         wpa_supplicant_cancel_scan(wpa_s);
 885
 886         if (wpa_s->driver_4way_handshake &&
 887             wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
 888                 /*
 889                  * We are done; the driver will take care of RSN 4-way
 890                  * handshake.
 891                  */
 892                 wpa_supplicant_cancel_auth_timeout(wpa_s);
 893                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
 894                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
 895                 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
 896         }
 897
 898         if (wpa_s->pending_eapol_rx) {
 899                 struct os_time now, age;
 900                 os_get_time(&now);
 901                 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
 902                 if (age.sec == 0 && age.usec < 100000 &&
 903                     os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
 904                     0) {
 905                         wpa_printf(MSG_DEBUG, "Process pending EAPOL frame "
 906                                    "that was received just before association "
 907                                    "notification");
 908                         wpa_supplicant_rx_eapol(
 909                                 wpa_s, wpa_s->pending_eapol_rx_src,
 910                                 wpabuf_head(wpa_s->pending_eapol_rx),
 911                                 wpabuf_len(wpa_s->pending_eapol_rx));
 912                 }
 913                 wpabuf_free(wpa_s->pending_eapol_rx);
 914                 wpa_s->pending_eapol_rx = NULL;
 915         }
 916 }
 917
 918
 919 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s)
 920 {
 921         const u8 *bssid;
 922
 923         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
 924                 /*
 925                  * At least Host AP driver and a Prism3 card seemed to be
 926                  * generating streams of disconnected events when configuring
 927                  * IBSS for WPA-None. Ignore them for now.
 928                  */
 929                 wpa_printf(MSG_DEBUG, "Disconnect event - ignore in "
 930                            "IBSS/WPA-None mode");
 931                 return;
 932         }
 933
 934         if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
 935             wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
 936                 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
 937                         "pre-shared key may be incorrect");
 938         }
 939         if (wpa_s->wpa_state >= WPA_ASSOCIATED)
 940                 wpa_supplicant_req_scan(wpa_s, 0, 100000);
 941         bssid = wpa_s->bssid;
 942         if (is_zero_ether_addr(bssid))
 943                 bssid = wpa_s->pending_bssid;
 944         wpa_blacklist_add(wpa_s, bssid);
 945         wpa_sm_notify_disassoc(wpa_s->wpa);
 946         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "- Disconnect event - "
 947                 "remove keys");
 948         if (wpa_supplicant_dynamic_keys(wpa_s)) {
 949                 wpa_s->keys_cleared = 0;
 950                 wpa_clear_keys(wpa_s, wpa_s->bssid);
 951         }
 952         wpa_supplicant_mark_disassoc(wpa_s);
 953 }
 954
 955
 956 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
 957 static void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx,
 958                                                     void *sock_ctx)
 959 {
 960         struct wpa_supplicant *wpa_s = eloop_ctx;
 961
 962         if (!wpa_s->pending_mic_error_report)
 963                 return;
 964
 965         wpa_printf(MSG_DEBUG, "WPA: Sending pending MIC error report");
 966         wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
 967         wpa_s->pending_mic_error_report = 0;
 968 }
 969 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
 970
 971
 972 static void
 973 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
 974                                          union wpa_event_data *data)
 975 {
 976         int pairwise;
 977         struct os_time t;
 978
 979         wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
 980         pairwise = (data && data->michael_mic_failure.unicast);
 981         os_get_time(&t);
 982         if ((wpa_s->last_michael_mic_error &&
 983              t.sec - wpa_s->last_michael_mic_error <= 60) ||
 984             wpa_s->pending_mic_error_report) {
 985                 if (wpa_s->pending_mic_error_report) {
 986                         /*
 987                          * Send the pending MIC error report immediately since
 988                          * we are going to start countermeasures and AP better
 989                          * do the same.
 990                          */
 991                         wpa_sm_key_request(wpa_s->wpa, 1,
 992                                            wpa_s->pending_mic_error_pairwise);
 993                 }
 994
 995                 /* Send the new MIC error report immediately since we are going
 996                  * to start countermeasures and AP better do the same.
 997                  */
 998                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
 999
1000                 /* initialize countermeasures */
1001                 wpa_s->countermeasures = 1;
1002                 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
1003
1004                 /*
1005                  * Need to wait for completion of request frame. We do not get
1006                  * any callback for the message completion, so just wait a
1007                  * short while and hope for the best. */
1008                 os_sleep(0, 10000);
1009
1010                 wpa_drv_set_countermeasures(wpa_s, 1);
1011                 wpa_supplicant_deauthenticate(wpa_s,
1012                                               WLAN_REASON_MICHAEL_MIC_FAILURE);
1013                 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
1014                                      wpa_s, NULL);
1015                 eloop_register_timeout(60, 0,
1016                                        wpa_supplicant_stop_countermeasures,
1017                                        wpa_s, NULL);
1018                 /* TODO: mark the AP rejected for 60 second. STA is
1019                  * allowed to associate with another AP.. */
1020         } else {
1021 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1022                 if (wpa_s->mic_errors_seen) {
1023                         /*
1024                          * Reduce the effectiveness of Michael MIC error
1025                          * reports as a means for attacking against TKIP if
1026                          * more than one MIC failure is noticed with the same
1027                          * PTK. We delay the transmission of the reports by a
1028                          * random time between 0 and 60 seconds in order to
1029                          * force the attacker wait 60 seconds before getting
1030                          * the information on whether a frame resulted in a MIC
1031                          * failure.
1032                          */
1033                         u8 rval[4];
1034                         int sec;
1035
1036                         if (os_get_random(rval, sizeof(rval)) < 0)
1037                                 sec = os_random() % 60;
1038                         else
1039                                 sec = WPA_GET_BE32(rval) % 60;
1040                         wpa_printf(MSG_DEBUG, "WPA: Delay MIC error report %d "
1041                                    "seconds", sec);
1042                         wpa_s->pending_mic_error_report = 1;
1043                         wpa_s->pending_mic_error_pairwise = pairwise;
1044                         eloop_cancel_timeout(
1045                                 wpa_supplicant_delayed_mic_error_report,
1046                                 wpa_s, NULL);
1047                         eloop_register_timeout(
1048                                 sec, os_random() % 1000000,
1049                                 wpa_supplicant_delayed_mic_error_report,
1050                                 wpa_s, NULL);
1051                 } else {
1052                         wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1053                 }
1054 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1055                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1056 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1057         }
1058         wpa_s->last_michael_mic_error = t.sec;
1059         wpa_s->mic_errors_seen++;
1060 }
1061
1062
1063 static void
1064 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
1065                                       union wpa_event_data *data)
1066 {
1067         if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
1068                 return;
1069
1070         switch (data->interface_status.ievent) {
1071         case EVENT_INTERFACE_ADDED:
1072                 if (!wpa_s->interface_removed)
1073                         break;
1074                 wpa_s->interface_removed = 0;
1075                 wpa_printf(MSG_DEBUG, "Configured interface was added.");
1076                 if (wpa_supplicant_driver_init(wpa_s) < 0) {
1077                         wpa_printf(MSG_INFO, "Failed to initialize the driver "
1078                                    "after interface was added.");
1079                 }
1080                 break;
1081         case EVENT_INTERFACE_REMOVED:
1082                 wpa_printf(MSG_DEBUG, "Configured interface was removed.");
1083                 wpa_s->interface_removed = 1;
1084                 wpa_supplicant_mark_disassoc(wpa_s);
1085                 l2_packet_deinit(wpa_s->l2);
1086                 wpa_s->l2 = NULL;
1087                 break;
1088         }
1089 }
1090
1091
1092 #ifdef CONFIG_PEERKEY
1093 static void
1094 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
1095                               union wpa_event_data *data)
1096 {
1097         if (data == NULL)
1098                 return;
1099         wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
1100 }
1101 #endif /* CONFIG_PEERKEY */
1102
1103
1104 #ifdef CONFIG_IEEE80211R
1105 static void
1106 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
1107                                  union wpa_event_data *data)
1108 {
1109         if (data == NULL)
1110                 return;
1111
1112         if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
1113                                     data->ft_ies.ies_len,
1114                                     data->ft_ies.ft_action,
1115                                     data->ft_ies.target_ap) < 0) {
1116                 /* TODO: prevent MLME/driver from trying to associate? */
1117         }
1118 }
1119 #endif /* CONFIG_IEEE80211R */
1120
1121
1122 void wpa_supplicant_event(void *ctx, wpa_event_type event,
1123                           union wpa_event_data *data)
1124 {
1125         struct wpa_supplicant *wpa_s = ctx;
1126
1127         switch (event) {
1128         case EVENT_ASSOC:
1129                 wpa_supplicant_event_assoc(wpa_s, data);
1130                 break;
1131         case EVENT_DISASSOC:
1132                 wpa_supplicant_event_disassoc(wpa_s);
1133                 break;
1134         case EVENT_MICHAEL_MIC_FAILURE:
1135                 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
1136                 break;
1137 #ifndef CONFIG_NO_SCAN_PROCESSING
1138         case EVENT_SCAN_RESULTS:
1139                 wpa_supplicant_event_scan_results(wpa_s);
1140                 break;
1141 #endif /* CONFIG_NO_SCAN_PROCESSING */
1142         case EVENT_ASSOCINFO:
1143                 wpa_supplicant_event_associnfo(wpa_s, data);
1144                 break;
1145         case EVENT_INTERFACE_STATUS:
1146                 wpa_supplicant_event_interface_status(wpa_s, data);
1147                 break;
1148         case EVENT_PMKID_CANDIDATE:
1149                 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
1150                 break;
1151 #ifdef CONFIG_PEERKEY
1152         case EVENT_STKSTART:
1153                 wpa_supplicant_event_stkstart(wpa_s, data);
1154                 break;
1155 #endif /* CONFIG_PEERKEY */
1156 #ifdef CONFIG_IEEE80211R
1157         case EVENT_FT_RESPONSE:
1158                 wpa_supplicant_event_ft_response(wpa_s, data);
1159                 break;
1160 #endif /* CONFIG_IEEE80211R */
1161         default:
1162                 wpa_printf(MSG_INFO, "Unknown event %d", event);
1163                 break;
1164         }
1165 }