wpa_supplicant/events.c

   1 /*
   2  * WPA Supplicant - Driver event processing
   3  * Copyright (c) 2003-2010, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #include "includes.h"
  16
  17 #include "common.h"
  18 #include "eapol_supp/eapol_supp_sm.h"
  19 #include "rsn_supp/wpa.h"
  20 #include "eloop.h"
  21 #include "config.h"
  22 #include "l2_packet/l2_packet.h"
  23 #include "wpa_supplicant_i.h"
  24 #include "driver_i.h"
  25 #include "pcsc_funcs.h"
  26 #include "rsn_supp/preauth.h"
  27 #include "rsn_supp/pmksa_cache.h"
  28 #include "common/wpa_ctrl.h"
  29 #include "eap_peer/eap.h"
  30 #include "ap/hostapd.h"
  31 #include "notify.h"
  32 #include "common/ieee802_11_defs.h"
  33 #include "blacklist.h"
  34 #include "wpas_glue.h"
  35 #include "wps_supplicant.h"
  36 #include "ibss_rsn.h"
  37 #include "sme.h"
  38 #include "bgscan.h"
  39 #include "ap.h"
  40 #include "bss.h"
  41 #include "mlme.h"
  42 #include "scan.h"
  43
  44
  45 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
  46 {
  47         struct wpa_ssid *ssid, *old_ssid;
  48
  49         if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
  50                 return 0;
  51
  52         wpa_printf(MSG_DEBUG, "Select network based on association "
  53                    "information");
  54         ssid = wpa_supplicant_get_ssid(wpa_s);
  55         if (ssid == NULL) {
  56                 wpa_printf(MSG_INFO, "No network configuration found for the "
  57                            "current AP");
  58                 return -1;
  59         }
  60
  61         if (ssid->disabled) {
  62                 wpa_printf(MSG_DEBUG, "Selected network is disabled");
  63                 return -1;
  64         }
  65
  66         wpa_printf(MSG_DEBUG, "Network configuration found for the current "
  67                    "AP");
  68         if (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
  69                               WPA_KEY_MGMT_WPA_NONE |
  70                               WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X |
  71                               WPA_KEY_MGMT_PSK_SHA256 |
  72                               WPA_KEY_MGMT_IEEE8021X_SHA256)) {
  73                 u8 wpa_ie[80];
  74                 size_t wpa_ie_len = sizeof(wpa_ie);
  75                 wpa_supplicant_set_suites(wpa_s, NULL, ssid,
  76                                           wpa_ie, &wpa_ie_len);
  77         } else {
  78                 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
  79         }
  80
  81         if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
  82                 eapol_sm_invalidate_cached_session(wpa_s->eapol);
  83         old_ssid = wpa_s->current_ssid;
  84         wpa_s->current_ssid = ssid;
  85         wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
  86         wpa_supplicant_initiate_eapol(wpa_s);
  87         if (old_ssid != wpa_s->current_ssid)
  88                 wpas_notify_network_changed(wpa_s);
  89
  90         return 0;
  91 }
  92
  93
  94 static void wpa_supplicant_stop_countermeasures(void *eloop_ctx,
  95                                                 void *sock_ctx)
  96 {
  97         struct wpa_supplicant *wpa_s = eloop_ctx;
  98
  99         if (wpa_s->countermeasures) {
 100                 wpa_s->countermeasures = 0;
 101                 wpa_drv_set_countermeasures(wpa_s, 0);
 102                 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
 103                 wpa_supplicant_req_scan(wpa_s, 0, 0);
 104         }
 105 }
 106
 107
 108 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
 109 {
 110         int bssid_changed;
 111
 112         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
 113                 return;
 114
 115         wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
 116         bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
 117         os_memset(wpa_s->bssid, 0, ETH_ALEN);
 118         os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
 119         wpa_s->current_bss = NULL;
 120         if (bssid_changed)
 121                 wpas_notify_bssid_changed(wpa_s);
 122
 123         eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
 124         eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
 125         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
 126                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
 127         wpa_s->ap_ies_from_associnfo = 0;
 128 }
 129
 130
 131 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
 132 {
 133         struct wpa_ie_data ie;
 134         int pmksa_set = -1;
 135         size_t i;
 136
 137         if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
 138             ie.pmkid == NULL)
 139                 return;
 140
 141         for (i = 0; i < ie.num_pmkid; i++) {
 142                 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
 143                                                     ie.pmkid + i * PMKID_LEN,
 144                                                     NULL, NULL, 0);
 145                 if (pmksa_set == 0) {
 146                         eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
 147                         break;
 148                 }
 149         }
 150
 151         wpa_printf(MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from PMKSA "
 152                    "cache", pmksa_set == 0 ? "" : "not ");
 153 }
 154
 155
 156 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
 157                                                  union wpa_event_data *data)
 158 {
 159         if (data == NULL) {
 160                 wpa_printf(MSG_DEBUG, "RSN: No data in PMKID candidate event");
 161                 return;
 162         }
 163         wpa_printf(MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
 164                    " index=%d preauth=%d",
 165                    MAC2STR(data->pmkid_candidate.bssid),
 166                    data->pmkid_candidate.index,
 167                    data->pmkid_candidate.preauth);
 168
 169         pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
 170                             data->pmkid_candidate.index,
 171                             data->pmkid_candidate.preauth);
 172 }
 173
 174
 175 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
 176 {
 177         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
 178             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
 179                 return 0;
 180
 181 #ifdef IEEE8021X_EAPOL
 182         if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
 183             wpa_s->current_ssid &&
 184             !(wpa_s->current_ssid->eapol_flags &
 185               (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 186                EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
 187                 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
 188                  * plaintext or static WEP keys). */
 189                 return 0;
 190         }
 191 #endif /* IEEE8021X_EAPOL */
 192
 193         return 1;
 194 }
 195
 196
 197 /**
 198  * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
 199  * @wpa_s: pointer to wpa_supplicant data
 200  * @ssid: Configuration data for the network
 201  * Returns: 0 on success, -1 on failure
 202  *
 203  * This function is called when starting authentication with a network that is
 204  * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
 205  */
 206 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 207                               struct wpa_ssid *ssid)
 208 {
 209 #ifdef IEEE8021X_EAPOL
 210         int aka = 0, sim = 0, type;
 211
 212         if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
 213                 return 0;
 214
 215         if (ssid->eap.eap_methods == NULL) {
 216                 sim = 1;
 217                 aka = 1;
 218         } else {
 219                 struct eap_method_type *eap = ssid->eap.eap_methods;
 220                 while (eap->vendor != EAP_VENDOR_IETF ||
 221                        eap->method != EAP_TYPE_NONE) {
 222                         if (eap->vendor == EAP_VENDOR_IETF) {
 223                                 if (eap->method == EAP_TYPE_SIM)
 224                                         sim = 1;
 225                                 else if (eap->method == EAP_TYPE_AKA)
 226                                         aka = 1;
 227                         }
 228                         eap++;
 229                 }
 230         }
 231
 232         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
 233                 sim = 0;
 234         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL)
 235                 aka = 0;
 236
 237         if (!sim && !aka) {
 238                 wpa_printf(MSG_DEBUG, "Selected network is configured to use "
 239                            "SIM, but neither EAP-SIM nor EAP-AKA are enabled");
 240                 return 0;
 241         }
 242
 243         wpa_printf(MSG_DEBUG, "Selected network is configured to use SIM "
 244                    "(sim=%d aka=%d) - initialize PCSC", sim, aka);
 245         if (sim && aka)
 246                 type = SCARD_TRY_BOTH;
 247         else if (aka)
 248                 type = SCARD_USIM_ONLY;
 249         else
 250                 type = SCARD_GSM_SIM_ONLY;
 251
 252         wpa_s->scard = scard_init(type);
 253         if (wpa_s->scard == NULL) {
 254                 wpa_printf(MSG_WARNING, "Failed to initialize SIM "
 255                            "(pcsc-lite)");
 256                 return -1;
 257         }
 258         wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
 259         eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
 260 #endif /* IEEE8021X_EAPOL */
 261
 262         return 0;
 263 }
 264
 265
 266 #ifndef CONFIG_NO_SCAN_PROCESSING
 267 static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
 268                                         struct wpa_ssid *ssid)
 269 {
 270         int i, privacy = 0;
 271
 272         if (ssid->mixed_cell)
 273                 return 1;
 274
 275 #ifdef CONFIG_WPS
 276         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
 277                 return 1;
 278 #endif /* CONFIG_WPS */
 279
 280         for (i = 0; i < NUM_WEP_KEYS; i++) {
 281                 if (ssid->wep_key_len[i]) {
 282                         privacy = 1;
 283                         break;
 284                 }
 285         }
 286 #ifdef IEEE8021X_EAPOL
 287         if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
 288             ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 289                                  EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
 290                 privacy = 1;
 291 #endif /* IEEE8021X_EAPOL */
 292
 293         if (bss->caps & IEEE80211_CAP_PRIVACY)
 294                 return privacy;
 295         return !privacy;
 296 }
 297
 298
 299 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
 300                                          struct wpa_ssid *ssid,
 301                                          struct wpa_scan_res *bss)
 302 {
 303         struct wpa_ie_data ie;
 304         int proto_match = 0;
 305         const u8 *rsn_ie, *wpa_ie;
 306         int ret;
 307
 308         ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
 309         if (ret >= 0)
 310                 return ret;
 311
 312         rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 313         while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
 314                 proto_match++;
 315
 316                 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
 317                         wpa_printf(MSG_DEBUG, "   skip RSN IE - parse failed");
 318                         break;
 319                 }
 320                 if (!(ie.proto & ssid->proto)) {
 321                         wpa_printf(MSG_DEBUG, "   skip RSN IE - proto "
 322                                    "mismatch");
 323                         break;
 324                 }
 325
 326                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 327                         wpa_printf(MSG_DEBUG, "   skip RSN IE - PTK cipher "
 328                                    "mismatch");
 329                         break;
 330                 }
 331
 332                 if (!(ie.group_cipher & ssid->group_cipher)) {
 333                         wpa_printf(MSG_DEBUG, "   skip RSN IE - GTK cipher "
 334                                    "mismatch");
 335                         break;
 336                 }
 337
 338                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 339                         wpa_printf(MSG_DEBUG, "   skip RSN IE - key mgmt "
 340                                    "mismatch");
 341                         break;
 342                 }
 343
 344 #ifdef CONFIG_IEEE80211W
 345                 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
 346                     ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
 347                         wpa_printf(MSG_DEBUG, "   skip RSN IE - no mgmt frame "
 348                                    "protection");
 349                         break;
 350                 }
 351 #endif /* CONFIG_IEEE80211W */
 352
 353                 wpa_printf(MSG_DEBUG, "   selected based on RSN IE");
 354                 return 1;
 355         }
 356
 357         wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 358         while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
 359                 proto_match++;
 360
 361                 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
 362                         wpa_printf(MSG_DEBUG, "   skip WPA IE - parse failed");
 363                         break;
 364                 }
 365                 if (!(ie.proto & ssid->proto)) {
 366                         wpa_printf(MSG_DEBUG, "   skip WPA IE - proto "
 367                                    "mismatch");
 368                         break;
 369                 }
 370
 371                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 372                         wpa_printf(MSG_DEBUG, "   skip WPA IE - PTK cipher "
 373                                    "mismatch");
 374                         break;
 375                 }
 376
 377                 if (!(ie.group_cipher & ssid->group_cipher)) {
 378                         wpa_printf(MSG_DEBUG, "   skip WPA IE - GTK cipher "
 379                                    "mismatch");
 380                         break;
 381                 }
 382
 383                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 384                         wpa_printf(MSG_DEBUG, "   skip WPA IE - key mgmt "
 385                                    "mismatch");
 386                         break;
 387                 }
 388
 389                 wpa_printf(MSG_DEBUG, "   selected based on WPA IE");
 390                 return 1;
 391         }
 392
 393         if (proto_match == 0)
 394                 wpa_printf(MSG_DEBUG, "   skip - no WPA/RSN proto match");
 395
 396         return 0;
 397 }
 398
 399
 400 static int freq_allowed(int *freqs, int freq)
 401 {
 402         int i;
 403
 404         if (freqs == NULL)
 405                 return 1;
 406
 407         for (i = 0; freqs[i]; i++)
 408                 if (freqs[i] == freq)
 409                         return 1;
 410         return 0;
 411 }
 412
 413
 414 static struct wpa_bss *
 415 wpa_supplicant_select_bss_wpa(struct wpa_supplicant *wpa_s,
 416                               struct wpa_scan_results *scan_res,
 417                               struct wpa_ssid *group,
 418                               struct wpa_ssid **selected_ssid)
 419 {
 420         struct wpa_ssid *ssid;
 421         struct wpa_scan_res *bss;
 422         size_t i;
 423         struct wpa_blacklist *e;
 424         const u8 *ie;
 425
 426         wpa_printf(MSG_DEBUG, "Try to find WPA-enabled AP");
 427         for (i = 0; i < scan_res->num; i++) {
 428                 const u8 *ssid_;
 429                 u8 wpa_ie_len, rsn_ie_len, ssid_len;
 430                 bss = scan_res->res[i];
 431
 432                 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
 433                 ssid_ = ie ? ie + 2 : (u8 *) "";
 434                 ssid_len = ie ? ie[1] : 0;
 435
 436                 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 437                 wpa_ie_len = ie ? ie[1] : 0;
 438
 439                 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 440                 rsn_ie_len = ie ? ie[1] : 0;
 441
 442                 wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
 443                            "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x",
 444                            (int) i, MAC2STR(bss->bssid),
 445                            wpa_ssid_txt(ssid_, ssid_len),
 446                            wpa_ie_len, rsn_ie_len, bss->caps);
 447
 448                 e = wpa_blacklist_get(wpa_s, bss->bssid);
 449                 if (e && e->count > 1) {
 450                         wpa_printf(MSG_DEBUG, "   skip - blacklisted");
 451                         continue;
 452                 }
 453
 454                 if (ssid_len == 0) {
 455                         wpa_printf(MSG_DEBUG, "   skip - SSID not known");
 456                         continue;
 457                 }
 458
 459                 if (wpa_ie_len == 0 && rsn_ie_len == 0) {
 460                         wpa_printf(MSG_DEBUG, "   skip - no WPA/RSN IE");
 461                         continue;
 462                 }
 463
 464                 for (ssid = group; ssid; ssid = ssid->pnext) {
 465                         int check_ssid = 1;
 466
 467                         if (ssid->disabled) {
 468                                 wpa_printf(MSG_DEBUG, "   skip - disabled");
 469                                 continue;
 470                         }
 471
 472 #ifdef CONFIG_WPS
 473                         if (ssid->ssid_len == 0 &&
 474                             wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
 475                                 check_ssid = 0;
 476 #endif /* CONFIG_WPS */
 477
 478                         if (check_ssid &&
 479                             (ssid_len != ssid->ssid_len ||
 480                              os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
 481                                 wpa_printf(MSG_DEBUG, "   skip - "
 482                                            "SSID mismatch");
 483                                 continue;
 484                         }
 485
 486                         if (ssid->bssid_set &&
 487                             os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0)
 488                         {
 489                                 wpa_printf(MSG_DEBUG, "   skip - "
 490                                            "BSSID mismatch");
 491                                 continue;
 492                         }
 493
 494                         if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
 495                                 continue;
 496
 497                         if (!freq_allowed(ssid->freq_list, bss->freq)) {
 498                                 wpa_printf(MSG_DEBUG, "   skip - "
 499                                            "frequency not allowed");
 500                                 continue;
 501                         }
 502
 503                         wpa_printf(MSG_DEBUG, "   selected WPA AP "
 504                                    MACSTR " ssid='%s'",
 505                                    MAC2STR(bss->bssid),
 506                                    wpa_ssid_txt(ssid_, ssid_len));
 507                         *selected_ssid = ssid;
 508                         return wpa_bss_get(wpa_s, bss->bssid, ssid_, ssid_len);
 509                 }
 510         }
 511
 512         return NULL;
 513 }
 514
 515
 516 static struct wpa_bss *
 517 wpa_supplicant_select_bss_non_wpa(struct wpa_supplicant *wpa_s,
 518                                   struct wpa_scan_results *scan_res,
 519                                   struct wpa_ssid *group,
 520                                   struct wpa_ssid **selected_ssid)
 521 {
 522         struct wpa_ssid *ssid;
 523         struct wpa_scan_res *bss;
 524         size_t i;
 525         struct wpa_blacklist *e;
 526         const u8 *ie;
 527
 528         wpa_printf(MSG_DEBUG, "Try to find non-WPA AP");
 529         for (i = 0; i < scan_res->num; i++) {
 530                 const u8 *ssid_;
 531                 u8 wpa_ie_len, rsn_ie_len, ssid_len;
 532                 bss = scan_res->res[i];
 533
 534                 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
 535                 ssid_ = ie ? ie + 2 : (u8 *) "";
 536                 ssid_len = ie ? ie[1] : 0;
 537
 538                 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 539                 wpa_ie_len = ie ? ie[1] : 0;
 540
 541                 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 542                 rsn_ie_len = ie ? ie[1] : 0;
 543
 544                 wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
 545                            "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x",
 546                            (int) i, MAC2STR(bss->bssid),
 547                            wpa_ssid_txt(ssid_, ssid_len),
 548                            wpa_ie_len, rsn_ie_len, bss->caps);
 549
 550                 e = wpa_blacklist_get(wpa_s, bss->bssid);
 551                 if (e && e->count > 1) {
 552                         wpa_printf(MSG_DEBUG, "   skip - blacklisted");
 553                         continue;
 554                 }
 555
 556                 if (ssid_len == 0) {
 557                         wpa_printf(MSG_DEBUG, "   skip - SSID not known");
 558                         continue;
 559                 }
 560
 561                 for (ssid = group; ssid; ssid = ssid->pnext) {
 562                         int check_ssid = ssid->ssid_len != 0;
 563
 564                         if (ssid->disabled) {
 565                                 wpa_printf(MSG_DEBUG, "   skip - disabled");
 566                                 continue;
 567                         }
 568
 569 #ifdef CONFIG_WPS
 570                         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 571                                 /* Only allow wildcard SSID match if an AP
 572                                  * advertises active WPS operation that matches
 573                                  * with our mode. */
 574                                 check_ssid = 1;
 575                                 if (ssid->ssid_len == 0 &&
 576                                     wpas_wps_ssid_wildcard_ok(wpa_s, ssid,
 577                                                               bss))
 578                                         check_ssid = 0;
 579                         }
 580 #endif /* CONFIG_WPS */
 581
 582                         if (check_ssid &&
 583                             (ssid_len != ssid->ssid_len ||
 584                              os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
 585                                 wpa_printf(MSG_DEBUG, "   skip - "
 586                                            "SSID mismatch");
 587                                 continue;
 588                         }
 589
 590                         if (ssid->bssid_set &&
 591                             os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0)
 592                         {
 593                                 wpa_printf(MSG_DEBUG, "   skip - "
 594                                            "BSSID mismatch");
 595                                 continue;
 596                         }
 597
 598                         if (!(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
 599                             !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
 600                             !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA))
 601                         {
 602                                 wpa_printf(MSG_DEBUG, "   skip - "
 603                                            "non-WPA network not allowed");
 604                                 continue;
 605                         }
 606
 607                         if ((ssid->key_mgmt &
 608                              (WPA_KEY_MGMT_IEEE8021X | WPA_KEY_MGMT_PSK |
 609                               WPA_KEY_MGMT_FT_IEEE8021X | WPA_KEY_MGMT_FT_PSK |
 610                               WPA_KEY_MGMT_IEEE8021X_SHA256 |
 611                               WPA_KEY_MGMT_PSK_SHA256)) &&
 612                             (wpa_ie_len != 0 || rsn_ie_len != 0)) {
 613                                 wpa_printf(MSG_DEBUG, "   skip - "
 614                                            "WPA network");
 615                                 continue;
 616                         }
 617
 618                         if (!wpa_supplicant_match_privacy(bss, ssid)) {
 619                                 wpa_printf(MSG_DEBUG, "   skip - "
 620                                            "privacy mismatch");
 621                                 continue;
 622                         }
 623
 624                         if (bss->caps & IEEE80211_CAP_IBSS) {
 625                                 wpa_printf(MSG_DEBUG, "   skip - "
 626                                            "IBSS (adhoc) network");
 627                                 continue;
 628                         }
 629
 630                         if (!freq_allowed(ssid->freq_list, bss->freq)) {
 631                                 wpa_printf(MSG_DEBUG, "   skip - "
 632                                            "frequency not allowed");
 633                                 continue;
 634                         }
 635
 636                         wpa_printf(MSG_DEBUG, "   selected non-WPA AP "
 637                                    MACSTR " ssid='%s'",
 638                                    MAC2STR(bss->bssid),
 639                                    wpa_ssid_txt(ssid_, ssid_len));
 640                         *selected_ssid = ssid;
 641                         return wpa_bss_get(wpa_s, bss->bssid, ssid_, ssid_len);
 642                 }
 643         }
 644
 645         return NULL;
 646 }
 647
 648
 649 static struct wpa_bss *
 650 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
 651                           struct wpa_scan_results *scan_res,
 652                           struct wpa_ssid *group,
 653                           struct wpa_ssid **selected_ssid)
 654 {
 655         struct wpa_bss *selected;
 656
 657         wpa_printf(MSG_DEBUG, "Selecting BSS from priority group %d",
 658                    group->priority);
 659
 660         /* First, try to find WPA-enabled AP */
 661         selected = wpa_supplicant_select_bss_wpa(wpa_s, scan_res, group,
 662                                                  selected_ssid);
 663         if (selected)
 664                 return selected;
 665
 666         /* If no WPA-enabled AP found, try to find non-WPA AP, if configuration
 667          * allows this. */
 668         return wpa_supplicant_select_bss_non_wpa(wpa_s, scan_res, group,
 669                                                  selected_ssid);
 670 }
 671
 672
 673 static struct wpa_bss *
 674 wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
 675                             struct wpa_scan_results *scan_res,
 676                             struct wpa_ssid **selected_ssid)
 677 {
 678         struct wpa_bss *selected = NULL;
 679         int prio;
 680
 681         while (selected == NULL) {
 682                 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
 683                         selected = wpa_supplicant_select_bss(
 684                                 wpa_s, scan_res, wpa_s->conf->pssid[prio],
 685                                 selected_ssid);
 686                         if (selected)
 687                                 break;
 688                 }
 689
 690                 if (selected == NULL && wpa_s->blacklist) {
 691                         wpa_printf(MSG_DEBUG, "No APs found - clear blacklist "
 692                                    "and try again");
 693                         wpa_blacklist_clear(wpa_s);
 694                         wpa_s->blacklist_cleared++;
 695                 } else if (selected == NULL)
 696                         break;
 697         }
 698
 699         return selected;
 700 }
 701
 702
 703 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
 704                                         int timeout_sec, int timeout_usec)
 705 {
 706         if (wpa_s->scan_res_tried == 1 && wpa_s->conf->ap_scan == 1) {
 707                 /*
 708                  * Quick recovery if the initial scan results were not
 709                  * complete when fetched before the first scan request.
 710                  */
 711                 wpa_s->scan_res_tried++;
 712                 timeout_sec = 0;
 713                 timeout_usec = 0;
 714         } else if (!wpa_supplicant_enabled_networks(wpa_s->conf)) {
 715                 /*
 716                  * No networks are enabled; short-circuit request so
 717                  * we don't wait timeout seconds before transitioning
 718                  * to INACTIVE state.
 719                  */
 720                 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
 721                 return;
 722         }
 723         wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
 724 }
 725
 726
 727 void wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
 728                             struct wpa_bss *selected,
 729                             struct wpa_ssid *ssid)
 730 {
 731         if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
 732                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
 733                         "PBC session overlap");
 734                 wpa_supplicant_req_new_scan(wpa_s, 10, 0);
 735                 return;
 736         }
 737
 738         /*
 739          * Do not trigger new association unless the BSSID has changed or if
 740          * reassociation is requested. If we are in process of associating with
 741          * the selected BSSID, do not trigger new attempt.
 742          */
 743         if (wpa_s->reassociate ||
 744             (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
 745              (wpa_s->wpa_state != WPA_ASSOCIATING ||
 746               os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
 747               0))) {
 748                 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
 749                         wpa_supplicant_req_new_scan(wpa_s, 10, 0);
 750                         return;
 751                 }
 752                 wpa_supplicant_associate(wpa_s, selected, ssid);
 753         } else {
 754                 wpa_printf(MSG_DEBUG, "Already associated with the selected "
 755                            "AP");
 756         }
 757 }
 758
 759
 760 static struct wpa_ssid *
 761 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
 762 {
 763         int prio;
 764         struct wpa_ssid *ssid;
 765
 766         for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
 767                 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
 768                 {
 769                         if (ssid->disabled)
 770                                 continue;
 771                         if (ssid->mode == IEEE80211_MODE_IBSS ||
 772                             ssid->mode == IEEE80211_MODE_AP)
 773                                 return ssid;
 774                 }
 775         }
 776         return NULL;
 777 }
 778
 779
 780 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
 781  * on BSS added and BSS changed events */
 782 static void wpa_supplicant_rsn_preauth_scan_results(
 783         struct wpa_supplicant *wpa_s, struct wpa_scan_results *scan_res)
 784 {
 785         int i;
 786
 787         if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
 788                 return;
 789
 790         for (i = scan_res->num - 1; i >= 0; i--) {
 791                 const u8 *ssid, *rsn;
 792                 struct wpa_scan_res *r;
 793
 794                 r = scan_res->res[i];
 795
 796                 ssid = wpa_scan_get_ie(r, WLAN_EID_SSID);
 797                 if (ssid == NULL)
 798                         continue;
 799
 800                 rsn = wpa_scan_get_ie(r, WLAN_EID_RSN);
 801                 if (rsn == NULL)
 802                         continue;
 803
 804                 rsn_preauth_scan_result(wpa_s->wpa, r->bssid, ssid, rsn);
 805         }
 806
 807 }
 808
 809
 810 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
 811                                        struct wpa_bss *selected,
 812                                        struct wpa_ssid *ssid,
 813                                        struct wpa_scan_results *scan_res)
 814 {
 815         size_t i;
 816         struct wpa_scan_res *current_bss = NULL;
 817         int min_diff;
 818
 819         if (wpa_s->reassociate)
 820                 return 1; /* explicit request to reassociate */
 821         if (wpa_s->wpa_state < WPA_ASSOCIATED)
 822                 return 1; /* we are not associated; continue */
 823         if (wpa_s->current_ssid == NULL)
 824                 return 1; /* unknown current SSID */
 825         if (wpa_s->current_ssid != ssid)
 826                 return 1; /* different network block */
 827
 828         for (i = 0; i < scan_res->num; i++) {
 829                 struct wpa_scan_res *res = scan_res->res[i];
 830                 const u8 *ie;
 831                 if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0)
 832                         continue;
 833
 834                 ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
 835                 if (ie == NULL)
 836                         continue;
 837                 if (ie[1] != wpa_s->current_ssid->ssid_len ||
 838                     os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0)
 839                         continue;
 840                 current_bss = res;
 841                 break;
 842         }
 843
 844         if (!current_bss)
 845                 return 1; /* current BSS not seen in scan results */
 846
 847         wpa_printf(MSG_DEBUG, "Considering within-ESS reassociation");
 848         wpa_printf(MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
 849                    MAC2STR(current_bss->bssid), current_bss->level);
 850         wpa_printf(MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
 851                    MAC2STR(selected->bssid), selected->level);
 852
 853         if (wpa_s->current_ssid->bssid_set &&
 854             os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
 855             0) {
 856                 wpa_printf(MSG_DEBUG, "Allow reassociation - selected BSS has "
 857                            "preferred BSSID");
 858                 return 1;
 859         }
 860
 861         min_diff = 2;
 862         if (current_bss->level < 0) {
 863                 if (current_bss->level < -85)
 864                         min_diff = 1;
 865                 else if (current_bss->level < -80)
 866                         min_diff = 2;
 867                 else if (current_bss->level < -75)
 868                         min_diff = 3;
 869                 else if (current_bss->level < -70)
 870                         min_diff = 4;
 871                 else
 872                         min_diff = 5;
 873         }
 874         if (abs(current_bss->level - selected->level) < min_diff) {
 875                 wpa_printf(MSG_DEBUG, "Skip roam - too small difference in "
 876                            "signal level");
 877                 return 0;
 878         }
 879
 880         return 1;
 881 }
 882
 883
 884 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
 885                                               union wpa_event_data *data)
 886 {
 887         struct wpa_bss *selected;
 888         struct wpa_ssid *ssid = NULL;
 889         struct wpa_scan_results *scan_res;
 890
 891         wpa_supplicant_notify_scanning(wpa_s, 0);
 892
 893         scan_res = wpa_supplicant_get_scan_results(wpa_s,
 894                                                    data ? &data->scan_info :
 895                                                    NULL, 1);
 896         if (scan_res == NULL) {
 897                 if (wpa_s->conf->ap_scan == 2)
 898                         return;
 899                 wpa_printf(MSG_DEBUG, "Failed to get scan results - try "
 900                            "scanning again");
 901                 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
 902                 return;
 903         }
 904
 905         if (wpa_s->scan_res_handler) {
 906                 wpa_s->scan_res_handler(wpa_s, scan_res);
 907                 wpa_s->scan_res_handler = NULL;
 908                 wpa_scan_results_free(scan_res);
 909                 return;
 910         }
 911
 912         /*
 913          * Don't post the results if this was the initial cached
 914          * and there were no results.
 915          */
 916         if (wpa_s->scan_res_tried == 1 && wpa_s->conf->ap_scan == 1 &&
 917             scan_res->num == 0) {
 918                 wpa_msg(wpa_s, MSG_DEBUG, "Cached scan results are "
 919                         "empty - not posting");
 920         } else {
 921                 wpa_printf(MSG_DEBUG, "New scan results available");
 922                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
 923                 wpas_notify_scan_results(wpa_s);
 924         }
 925
 926         wpas_notify_scan_done(wpa_s, 1);
 927
 928         if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
 929                 wpa_scan_results_free(scan_res);
 930                 return;
 931         }
 932
 933         if (wpa_s->disconnected) {
 934                 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
 935                 wpa_scan_results_free(scan_res);
 936                 return;
 937         }
 938
 939         if (bgscan_notify_scan(wpa_s) == 1) {
 940                 wpa_scan_results_free(scan_res);
 941                 return;
 942         }
 943
 944         wpa_supplicant_rsn_preauth_scan_results(wpa_s, scan_res);
 945
 946         selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
 947
 948         if (selected) {
 949                 int skip;
 950                 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid,
 951                                                     scan_res);
 952                 wpa_scan_results_free(scan_res);
 953                 if (skip)
 954                         return;
 955                 wpa_supplicant_connect(wpa_s, selected, ssid);
 956         } else {
 957                 wpa_scan_results_free(scan_res);
 958                 wpa_printf(MSG_DEBUG, "No suitable network found");
 959                 ssid = wpa_supplicant_pick_new_network(wpa_s);
 960                 if (ssid) {
 961                         wpa_printf(MSG_DEBUG, "Setup a new network");
 962                         wpa_supplicant_associate(wpa_s, NULL, ssid);
 963                 } else {
 964                         int timeout_sec = 5;
 965                         int timeout_usec = 0;
 966                         wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
 967                                                     timeout_usec);
 968                 }
 969         }
 970 }
 971 #endif /* CONFIG_NO_SCAN_PROCESSING */
 972
 973
 974 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
 975                                           union wpa_event_data *data)
 976 {
 977         int l, len, found = 0, wpa_found, rsn_found;
 978         const u8 *p;
 979
 980         wpa_printf(MSG_DEBUG, "Association info event");
 981         if (data->assoc_info.req_ies)
 982                 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
 983                             data->assoc_info.req_ies_len);
 984         if (data->assoc_info.resp_ies)
 985                 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
 986                             data->assoc_info.resp_ies_len);
 987         if (data->assoc_info.beacon_ies)
 988                 wpa_hexdump(MSG_DEBUG, "beacon_ies",
 989                             data->assoc_info.beacon_ies,
 990                             data->assoc_info.beacon_ies_len);
 991         if (data->assoc_info.freq)
 992                 wpa_printf(MSG_DEBUG, "freq=%u MHz", data->assoc_info.freq);
 993
 994         p = data->assoc_info.req_ies;
 995         l = data->assoc_info.req_ies_len;
 996
 997         /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
 998         while (p && l >= 2) {
 999                 len = p[1] + 2;
1000                 if (len > l) {
1001                         wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1002                                     p, l);
1003                         break;
1004                 }
1005                 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1006                      (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1007                     (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1008                         if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1009                                 break;
1010                         found = 1;
1011                         wpa_find_assoc_pmkid(wpa_s);
1012                         break;
1013                 }
1014                 l -= len;
1015                 p += len;
1016         }
1017         if (!found && data->assoc_info.req_ies)
1018                 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1019
1020 #ifdef CONFIG_IEEE80211R
1021 #ifdef CONFIG_SME
1022         if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1023                 u8 bssid[ETH_ALEN];
1024                 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1025                     wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1026                                                  data->assoc_info.resp_ies,
1027                                                  data->assoc_info.resp_ies_len,
1028                                                  bssid) < 0) {
1029                         wpa_printf(MSG_DEBUG, "FT: Validation of "
1030                                    "Reassociation Response failed");
1031                         wpa_supplicant_deauthenticate(
1032                                 wpa_s, WLAN_REASON_INVALID_IE);
1033                         return -1;
1034                 }
1035         }
1036
1037         p = data->assoc_info.resp_ies;
1038         l = data->assoc_info.resp_ies_len;
1039
1040         /* Go through the IEs and make a copy of the MDIE, if present. */
1041         while (p && l >= 2) {
1042                 len = p[1] + 2;
1043                 if (len > l) {
1044                         wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1045                                     p, l);
1046                         break;
1047                 }
1048                 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1049                     p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1050                         wpa_s->sme.ft_used = 1;
1051                         os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1052                                   MOBILITY_DOMAIN_ID_LEN);
1053                         break;
1054                 }
1055                 l -= len;
1056                 p += len;
1057         }
1058 #endif /* CONFIG_SME */
1059
1060         wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1061                              data->assoc_info.resp_ies_len);
1062 #endif /* CONFIG_IEEE80211R */
1063
1064         /* WPA/RSN IE from Beacon/ProbeResp */
1065         p = data->assoc_info.beacon_ies;
1066         l = data->assoc_info.beacon_ies_len;
1067
1068         /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1069          */
1070         wpa_found = rsn_found = 0;
1071         while (p && l >= 2) {
1072                 len = p[1] + 2;
1073                 if (len > l) {
1074                         wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1075                                     p, l);
1076                         break;
1077                 }
1078                 if (!wpa_found &&
1079                     p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1080                     os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1081                         wpa_found = 1;
1082                         wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1083                 }
1084
1085                 if (!rsn_found &&
1086                     p[0] == WLAN_EID_RSN && p[1] >= 2) {
1087                         rsn_found = 1;
1088                         wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1089                 }
1090
1091                 l -= len;
1092                 p += len;
1093         }
1094
1095         if (!wpa_found && data->assoc_info.beacon_ies)
1096                 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1097         if (!rsn_found && data->assoc_info.beacon_ies)
1098                 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1099         if (wpa_found || rsn_found)
1100                 wpa_s->ap_ies_from_associnfo = 1;
1101
1102         wpa_s->assoc_freq = data->assoc_info.freq;
1103
1104         return 0;
1105 }
1106
1107
1108 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1109                                        union wpa_event_data *data)
1110 {
1111         u8 bssid[ETH_ALEN];
1112         int ft_completed;
1113         int bssid_changed;
1114         struct wpa_driver_capa capa;
1115
1116 #ifdef CONFIG_AP
1117         if (wpa_s->ap_iface) {
1118                 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1119                                     data->assoc_info.addr,
1120                                     data->assoc_info.req_ies,
1121                                     data->assoc_info.req_ies_len);
1122                 return;
1123         }
1124 #endif /* CONFIG_AP */
1125
1126         ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1127         if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1128                 return;
1129
1130         wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
1131         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
1132                 os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
1133         if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) ||
1134             (wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
1135              os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0)) {
1136                 wpa_msg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1137                         MACSTR, MAC2STR(bssid));
1138                 bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN);
1139                 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1140                 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1141                 if (bssid_changed)
1142                         wpas_notify_bssid_changed(wpa_s);
1143
1144                 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1145                         wpa_clear_keys(wpa_s, bssid);
1146                 }
1147                 if (wpa_supplicant_select_config(wpa_s) < 0) {
1148                         wpa_supplicant_disassociate(
1149                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1150                         return;
1151                 }
1152                 if (wpa_s->current_ssid) {
1153                         struct wpa_bss *bss = NULL;
1154                         struct wpa_ssid *ssid = wpa_s->current_ssid;
1155                         if (ssid->ssid_len > 0)
1156                                 bss = wpa_bss_get(wpa_s, bssid,
1157                                                   ssid->ssid, ssid->ssid_len);
1158                         if (!bss)
1159                                 bss = wpa_bss_get_bssid(wpa_s, bssid);
1160                         if (bss)
1161                                 wpa_s->current_bss = bss;
1162                 }
1163         }
1164
1165 #ifdef CONFIG_SME
1166         os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1167         wpa_s->sme.prev_bssid_set = 1;
1168 #endif /* CONFIG_SME */
1169
1170         wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1171         if (wpa_s->current_ssid) {
1172                 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1173                  * initialized before association, but for other modes,
1174                  * initialize PC/SC here, if the current configuration needs
1175                  * smartcard or SIM/USIM. */
1176                 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1177         }
1178         wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1179         l2_packet_notify_auth_start(wpa_s->l2);
1180
1181         /*
1182          * Set portEnabled first to FALSE in order to get EAP state machine out
1183          * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1184          * state machine may transit to AUTHENTICATING state based on obsolete
1185          * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1186          * AUTHENTICATED without ever giving chance to EAP state machine to
1187          * reset the state.
1188          */
1189         if (!ft_completed) {
1190                 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1191                 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1192         }
1193         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1194                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1195         /* 802.1X::portControl = Auto */
1196         eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1197         wpa_s->eapol_received = 0;
1198         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1199             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1200             (wpa_s->current_ssid &&
1201              wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1202                 wpa_supplicant_cancel_auth_timeout(wpa_s);
1203                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1204         } else if (!ft_completed) {
1205                 /* Timeout for receiving the first EAPOL packet */
1206                 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1207         }
1208         wpa_supplicant_cancel_scan(wpa_s);
1209
1210         if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1211             wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1212                 /*
1213                  * We are done; the driver will take care of RSN 4-way
1214                  * handshake.
1215                  */
1216                 wpa_supplicant_cancel_auth_timeout(wpa_s);
1217                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1218                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1219                 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1220         }
1221
1222         if (wpa_s->pending_eapol_rx) {
1223                 struct os_time now, age;
1224                 os_get_time(&now);
1225                 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1226                 if (age.sec == 0 && age.usec < 100000 &&
1227                     os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1228                     0) {
1229                         wpa_printf(MSG_DEBUG, "Process pending EAPOL frame "
1230                                    "that was received just before association "
1231                                    "notification");
1232                         wpa_supplicant_rx_eapol(
1233                                 wpa_s, wpa_s->pending_eapol_rx_src,
1234                                 wpabuf_head(wpa_s->pending_eapol_rx),
1235                                 wpabuf_len(wpa_s->pending_eapol_rx));
1236                 }
1237                 wpabuf_free(wpa_s->pending_eapol_rx);
1238                 wpa_s->pending_eapol_rx = NULL;
1239         }
1240
1241 #ifdef CONFIG_BGSCAN
1242         if (wpa_s->current_ssid != wpa_s->bgscan_ssid) {
1243                 bgscan_deinit(wpa_s);
1244                 if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) {
1245                         if (bgscan_init(wpa_s, wpa_s->current_ssid)) {
1246                                 wpa_printf(MSG_DEBUG, "Failed to initialize "
1247                                            "bgscan");
1248                                 /*
1249                                  * Live without bgscan; it is only used as a
1250                                  * roaming optimization, so the initial
1251                                  * connection is not affected.
1252                                  */
1253                         } else
1254                                 wpa_s->bgscan_ssid = wpa_s->current_ssid;
1255                 } else
1256                         wpa_s->bgscan_ssid = NULL;
1257         }
1258 #endif /* CONFIG_BGSCAN */
1259
1260         if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1261              wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
1262             wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1263             capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
1264                 /* Set static WEP keys again */
1265                 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
1266         }
1267 }
1268
1269
1270 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
1271                                           u16 reason_code)
1272 {
1273         const u8 *bssid;
1274 #ifdef CONFIG_SME
1275         int authenticating;
1276         u8 prev_pending_bssid[ETH_ALEN];
1277
1278         authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
1279         os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
1280 #endif /* CONFIG_SME */
1281
1282         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1283                 /*
1284                  * At least Host AP driver and a Prism3 card seemed to be
1285                  * generating streams of disconnected events when configuring
1286                  * IBSS for WPA-None. Ignore them for now.
1287                  */
1288                 wpa_printf(MSG_DEBUG, "Disconnect event - ignore in "
1289                            "IBSS/WPA-None mode");
1290                 return;
1291         }
1292
1293         if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
1294             wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1295                 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
1296                         "pre-shared key may be incorrect");
1297         }
1298         if (wpa_s->wpa_state >= WPA_ASSOCIATED)
1299                 wpa_supplicant_req_scan(wpa_s, 0, 100000);
1300         bssid = wpa_s->bssid;
1301         if (is_zero_ether_addr(bssid))
1302                 bssid = wpa_s->pending_bssid;
1303         wpa_blacklist_add(wpa_s, bssid);
1304         wpa_sm_notify_disassoc(wpa_s->wpa);
1305         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
1306                 " reason=%d",
1307                 MAC2STR(bssid), reason_code);
1308         if (wpa_supplicant_dynamic_keys(wpa_s)) {
1309                 wpa_printf(MSG_DEBUG, "Disconnect event - remove keys");
1310                 wpa_s->keys_cleared = 0;
1311                 wpa_clear_keys(wpa_s, wpa_s->bssid);
1312         }
1313         wpa_supplicant_mark_disassoc(wpa_s);
1314         bgscan_deinit(wpa_s);
1315 #ifdef CONFIG_SME
1316         if (authenticating &&
1317             (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
1318                 /*
1319                  * mac80211-workaround to force deauth on failed auth cmd,
1320                  * requires us to remain in authenticating state to allow the
1321                  * second authentication attempt to be continued properly.
1322                  */
1323                 wpa_printf(MSG_DEBUG, "SME: Allow pending authentication to "
1324                            "proceed after disconnection event");
1325                 wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
1326                 os_memcpy(wpa_s->pending_bssid, prev_pending_bssid, ETH_ALEN);
1327         }
1328 #endif /* CONFIG_SME */
1329 }
1330
1331
1332 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1333 static void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx,
1334                                                     void *sock_ctx)
1335 {
1336         struct wpa_supplicant *wpa_s = eloop_ctx;
1337
1338         if (!wpa_s->pending_mic_error_report)
1339                 return;
1340
1341         wpa_printf(MSG_DEBUG, "WPA: Sending pending MIC error report");
1342         wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
1343         wpa_s->pending_mic_error_report = 0;
1344 }
1345 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1346
1347
1348 static void
1349 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
1350                                          union wpa_event_data *data)
1351 {
1352         int pairwise;
1353         struct os_time t;
1354
1355         wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
1356         pairwise = (data && data->michael_mic_failure.unicast);
1357         os_get_time(&t);
1358         if ((wpa_s->last_michael_mic_error &&
1359              t.sec - wpa_s->last_michael_mic_error <= 60) ||
1360             wpa_s->pending_mic_error_report) {
1361                 if (wpa_s->pending_mic_error_report) {
1362                         /*
1363                          * Send the pending MIC error report immediately since
1364                          * we are going to start countermeasures and AP better
1365                          * do the same.
1366                          */
1367                         wpa_sm_key_request(wpa_s->wpa, 1,
1368                                            wpa_s->pending_mic_error_pairwise);
1369                 }
1370
1371                 /* Send the new MIC error report immediately since we are going
1372                  * to start countermeasures and AP better do the same.
1373                  */
1374                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1375
1376                 /* initialize countermeasures */
1377                 wpa_s->countermeasures = 1;
1378                 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
1379
1380                 /*
1381                  * Need to wait for completion of request frame. We do not get
1382                  * any callback for the message completion, so just wait a
1383                  * short while and hope for the best. */
1384                 os_sleep(0, 10000);
1385
1386                 wpa_drv_set_countermeasures(wpa_s, 1);
1387                 wpa_supplicant_deauthenticate(wpa_s,
1388                                               WLAN_REASON_MICHAEL_MIC_FAILURE);
1389                 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
1390                                      wpa_s, NULL);
1391                 eloop_register_timeout(60, 0,
1392                                        wpa_supplicant_stop_countermeasures,
1393                                        wpa_s, NULL);
1394                 /* TODO: mark the AP rejected for 60 second. STA is
1395                  * allowed to associate with another AP.. */
1396         } else {
1397 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1398                 if (wpa_s->mic_errors_seen) {
1399                         /*
1400                          * Reduce the effectiveness of Michael MIC error
1401                          * reports as a means for attacking against TKIP if
1402                          * more than one MIC failure is noticed with the same
1403                          * PTK. We delay the transmission of the reports by a
1404                          * random time between 0 and 60 seconds in order to
1405                          * force the attacker wait 60 seconds before getting
1406                          * the information on whether a frame resulted in a MIC
1407                          * failure.
1408                          */
1409                         u8 rval[4];
1410                         int sec;
1411
1412                         if (os_get_random(rval, sizeof(rval)) < 0)
1413                                 sec = os_random() % 60;
1414                         else
1415                                 sec = WPA_GET_BE32(rval) % 60;
1416                         wpa_printf(MSG_DEBUG, "WPA: Delay MIC error report %d "
1417                                    "seconds", sec);
1418                         wpa_s->pending_mic_error_report = 1;
1419                         wpa_s->pending_mic_error_pairwise = pairwise;
1420                         eloop_cancel_timeout(
1421                                 wpa_supplicant_delayed_mic_error_report,
1422                                 wpa_s, NULL);
1423                         eloop_register_timeout(
1424                                 sec, os_random() % 1000000,
1425                                 wpa_supplicant_delayed_mic_error_report,
1426                                 wpa_s, NULL);
1427                 } else {
1428                         wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1429                 }
1430 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1431                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1432 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1433         }
1434         wpa_s->last_michael_mic_error = t.sec;
1435         wpa_s->mic_errors_seen++;
1436 }
1437
1438
1439 #ifdef CONFIG_TERMINATE_ONLASTIF
1440 static int any_interfaces(struct wpa_supplicant *head)
1441 {
1442         struct wpa_supplicant *wpa_s;
1443
1444         for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
1445                 if (!wpa_s->interface_removed)
1446                         return 1;
1447         return 0;
1448 }
1449 #endif /* CONFIG_TERMINATE_ONLASTIF */
1450
1451
1452 static void
1453 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
1454                                       union wpa_event_data *data)
1455 {
1456         if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
1457                 return;
1458
1459         switch (data->interface_status.ievent) {
1460         case EVENT_INTERFACE_ADDED:
1461                 if (!wpa_s->interface_removed)
1462                         break;
1463                 wpa_s->interface_removed = 0;
1464                 wpa_printf(MSG_DEBUG, "Configured interface was added.");
1465                 if (wpa_supplicant_driver_init(wpa_s) < 0) {
1466                         wpa_printf(MSG_INFO, "Failed to initialize the driver "
1467                                    "after interface was added.");
1468                 }
1469                 break;
1470         case EVENT_INTERFACE_REMOVED:
1471                 wpa_printf(MSG_DEBUG, "Configured interface was removed.");
1472                 wpa_s->interface_removed = 1;
1473                 wpa_supplicant_mark_disassoc(wpa_s);
1474                 l2_packet_deinit(wpa_s->l2);
1475                 wpa_s->l2 = NULL;
1476 #ifdef CONFIG_TERMINATE_ONLASTIF
1477                 /* check if last interface */
1478                 if (!any_interfaces(wpa_s->global->ifaces))
1479                         eloop_terminate();
1480 #endif /* CONFIG_TERMINATE_ONLASTIF */
1481                 break;
1482         }
1483 }
1484
1485
1486 #ifdef CONFIG_PEERKEY
1487 static void
1488 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
1489                               union wpa_event_data *data)
1490 {
1491         if (data == NULL)
1492                 return;
1493         wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
1494 }
1495 #endif /* CONFIG_PEERKEY */
1496
1497
1498 #ifdef CONFIG_IEEE80211R
1499 static void
1500 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
1501                                  union wpa_event_data *data)
1502 {
1503         if (data == NULL)
1504                 return;
1505
1506         if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
1507                                     data->ft_ies.ies_len,
1508                                     data->ft_ies.ft_action,
1509                                     data->ft_ies.target_ap,
1510                                     data->ft_ies.ric_ies,
1511                                     data->ft_ies.ric_ies_len) < 0) {
1512                 /* TODO: prevent MLME/driver from trying to associate? */
1513         }
1514 }
1515 #endif /* CONFIG_IEEE80211R */
1516
1517
1518 #ifdef CONFIG_IBSS_RSN
1519 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
1520                                                 union wpa_event_data *data)
1521 {
1522         if (data == NULL)
1523                 return;
1524         ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
1525 }
1526 #endif /* CONFIG_IBSS_RSN */
1527
1528
1529 #ifdef CONFIG_IEEE80211R
1530 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
1531                          size_t len)
1532 {
1533         const u8 *sta_addr, *target_ap_addr;
1534         u16 status;
1535
1536         wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
1537         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1538                 return; /* only SME case supported for now */
1539         if (len < 1 + 2 * ETH_ALEN + 2)
1540                 return;
1541         if (data[0] != 2)
1542                 return; /* Only FT Action Response is supported for now */
1543         sta_addr = data + 1;
1544         target_ap_addr = data + 1 + ETH_ALEN;
1545         status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
1546         wpa_printf(MSG_DEBUG, "FT: Received FT Action Response: STA " MACSTR
1547                    " TargetAP " MACSTR " status %u",
1548                    MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
1549
1550         if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
1551                 wpa_printf(MSG_DEBUG, "FT: Foreign STA Address " MACSTR
1552                            " in FT Action Response", MAC2STR(sta_addr));
1553                 return;
1554         }
1555
1556         if (status) {
1557                 wpa_printf(MSG_DEBUG, "FT: FT Action Response indicates "
1558                            "failure (status code %d)", status);
1559                 /* TODO: report error to FT code(?) */
1560                 return;
1561         }
1562
1563         if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
1564                                     len - (1 + 2 * ETH_ALEN + 2), 1,
1565                                     target_ap_addr, NULL, 0) < 0)
1566                 return;
1567
1568 #ifdef CONFIG_SME
1569         {
1570                 struct wpa_bss *bss;
1571                 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
1572                 if (bss)
1573                         wpa_s->sme.freq = bss->freq;
1574                 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
1575                 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
1576                               WLAN_AUTH_FT);
1577         }
1578 #endif /* CONFIG_SME */
1579 }
1580 #endif /* CONFIG_IEEE80211R */
1581
1582
1583 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
1584                           union wpa_event_data *data)
1585 {
1586         struct wpa_supplicant *wpa_s = ctx;
1587         u16 reason_code = 0;
1588
1589         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
1590             event != EVENT_INTERFACE_ENABLED &&
1591             event != EVENT_INTERFACE_STATUS) {
1592                 wpa_printf(MSG_DEBUG, "Ignore event %d while interface is "
1593                            "disabled", event);
1594                 return;
1595         }
1596
1597         switch (event) {
1598         case EVENT_AUTH:
1599                 sme_event_auth(wpa_s, data);
1600                 break;
1601         case EVENT_ASSOC:
1602                 wpa_supplicant_event_assoc(wpa_s, data);
1603                 break;
1604         case EVENT_DISASSOC:
1605                 wpa_printf(MSG_DEBUG, "Disassociation notification");
1606 #ifdef CONFIG_AP
1607                 if (wpa_s->ap_iface && data) {
1608                         hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
1609                                                data->disassoc_info.addr);
1610                         break;
1611                 }
1612 #endif /* CONFIG_AP */
1613                 if (data)
1614                         reason_code = data->deauth_info.reason_code;
1615                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
1616                         sme_event_disassoc(wpa_s, data);
1617                 /* fall through */
1618         case EVENT_DEAUTH:
1619                 if (event == EVENT_DEAUTH) {
1620                         wpa_printf(MSG_DEBUG, "Deauthentication notification");
1621                         if (data)
1622                                 reason_code = data->deauth_info.reason_code;
1623                 }
1624 #ifdef CONFIG_AP
1625                 if (wpa_s->ap_iface && data) {
1626                         hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
1627                                                data->deauth_info.addr);
1628                         break;
1629                 }
1630 #endif /* CONFIG_AP */
1631                 wpa_supplicant_event_disassoc(wpa_s, reason_code);
1632                 break;
1633         case EVENT_MICHAEL_MIC_FAILURE:
1634                 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
1635                 break;
1636 #ifndef CONFIG_NO_SCAN_PROCESSING
1637         case EVENT_SCAN_RESULTS:
1638                 wpa_supplicant_event_scan_results(wpa_s, data);
1639                 break;
1640 #endif /* CONFIG_NO_SCAN_PROCESSING */
1641         case EVENT_ASSOCINFO:
1642                 wpa_supplicant_event_associnfo(wpa_s, data);
1643                 break;
1644         case EVENT_INTERFACE_STATUS:
1645                 wpa_supplicant_event_interface_status(wpa_s, data);
1646                 break;
1647         case EVENT_PMKID_CANDIDATE:
1648                 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
1649                 break;
1650 #ifdef CONFIG_PEERKEY
1651         case EVENT_STKSTART:
1652                 wpa_supplicant_event_stkstart(wpa_s, data);
1653                 break;
1654 #endif /* CONFIG_PEERKEY */
1655 #ifdef CONFIG_IEEE80211R
1656         case EVENT_FT_RESPONSE:
1657                 wpa_supplicant_event_ft_response(wpa_s, data);
1658                 break;
1659 #endif /* CONFIG_IEEE80211R */
1660 #ifdef CONFIG_IBSS_RSN
1661         case EVENT_IBSS_RSN_START:
1662                 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
1663                 break;
1664 #endif /* CONFIG_IBSS_RSN */
1665         case EVENT_ASSOC_REJECT:
1666                 sme_event_assoc_reject(wpa_s, data);
1667                 break;
1668         case EVENT_AUTH_TIMED_OUT:
1669                 sme_event_auth_timed_out(wpa_s, data);
1670                 break;
1671         case EVENT_ASSOC_TIMED_OUT:
1672                 sme_event_assoc_timed_out(wpa_s, data);
1673                 break;
1674 #ifdef CONFIG_AP
1675         case EVENT_TX_STATUS:
1676                 if (wpa_s->ap_iface == NULL)
1677                         break;
1678                 switch (data->tx_status.type) {
1679                 case WLAN_FC_TYPE_MGMT:
1680                         ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
1681                                       data->tx_status.data_len,
1682                                       data->tx_status.stype,
1683                                       data->tx_status.ack);
1684                         break;
1685                 case WLAN_FC_TYPE_DATA:
1686                         ap_tx_status(wpa_s, data->tx_status.dst,
1687                                      data->tx_status.data,
1688                                      data->tx_status.data_len,
1689                                      data->tx_status.ack);
1690                         break;
1691                 }
1692                 break;
1693         case EVENT_RX_FROM_UNKNOWN:
1694                 if (wpa_s->ap_iface == NULL)
1695                         break;
1696                 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.frame,
1697                                        data->rx_from_unknown.len);
1698                 break;
1699         case EVENT_RX_MGMT:
1700                 if (wpa_s->ap_iface == NULL)
1701                         break;
1702                 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
1703                 break;
1704 #endif /* CONFIG_AP */
1705         case EVENT_RX_ACTION:
1706                 wpa_printf(MSG_DEBUG, "Received Action frame: SA=" MACSTR
1707                            " Category=%u DataLen=%d freq=%d MHz",
1708                            MAC2STR(data->rx_action.sa),
1709                            data->rx_action.category, (int) data->rx_action.len,
1710                            data->rx_action.freq);
1711 #ifdef CONFIG_IEEE80211R
1712                 if (data->rx_action.category == WLAN_ACTION_FT) {
1713                         ft_rx_action(wpa_s, data->rx_action.data,
1714                                      data->rx_action.len);
1715                         break;
1716                 }
1717 #endif /* CONFIG_IEEE80211R */
1718                 break;
1719 #ifdef CONFIG_CLIENT_MLME
1720         case EVENT_MLME_RX: {
1721                 struct ieee80211_rx_status rx_status;
1722                 os_memset(&rx_status, 0, sizeof(rx_status));
1723                 rx_status.freq = data->mlme_rx.freq;
1724                 rx_status.channel = data->mlme_rx.channel;
1725                 rx_status.ssi = data->mlme_rx.ssi;
1726                 ieee80211_sta_rx(wpa_s, data->mlme_rx.buf, data->mlme_rx.len,
1727                                  &rx_status);
1728                 break;
1729         }
1730 #endif /* CONFIG_CLIENT_MLME */
1731         case EVENT_EAPOL_RX:
1732                 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
1733                                         data->eapol_rx.data,
1734                                         data->eapol_rx.data_len);
1735                 break;
1736         case EVENT_SIGNAL_CHANGE:
1737                 bgscan_notify_signal_change(
1738                         wpa_s, data->signal_change.above_threshold);
1739                 break;
1740         case EVENT_INTERFACE_ENABLED:
1741                 wpa_printf(MSG_DEBUG, "Interface was enabled");
1742                 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
1743                         wpa_supplicant_set_state(wpa_s,
1744                                                  WPA_DISCONNECTED);
1745                         wpa_supplicant_req_scan(wpa_s, 0, 0);
1746                 }
1747                 break;
1748         case EVENT_INTERFACE_DISABLED:
1749                 wpa_printf(MSG_DEBUG, "Interface was disabled");
1750                 wpa_supplicant_mark_disassoc(wpa_s);
1751                 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
1752                 break;
1753         default:
1754                 wpa_printf(MSG_INFO, "Unknown event %d", event);
1755                 break;
1756         }
1757 }