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 "common/ieee802_11_common.h"
  34 #include "blacklist.h"
  35 #include "wpas_glue.h"
  36 #include "wps_supplicant.h"
  37 #include "ibss_rsn.h"
  38 #include "sme.h"
  39 #include "p2p_supplicant.h"
  40 #include "bgscan.h"
  41 #include "ap.h"
  42 #include "bss.h"
  43 #include "mlme.h"
  44 #include "scan.h"
  45
  46
  47 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
  48 {
  49         struct wpa_ssid *ssid, *old_ssid;
  50
  51         if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid)
  52                 return 0;
  53
  54         wpa_printf(MSG_DEBUG, "Select network based on association "
  55                    "information");
  56         ssid = wpa_supplicant_get_ssid(wpa_s);
  57         if (ssid == NULL) {
  58                 wpa_printf(MSG_INFO, "No network configuration found for the "
  59                            "current AP");
  60                 return -1;
  61         }
  62
  63         if (ssid->disabled) {
  64                 wpa_printf(MSG_DEBUG, "Selected network is disabled");
  65                 return -1;
  66         }
  67
  68         wpa_printf(MSG_DEBUG, "Network configuration found for the current "
  69                    "AP");
  70         if (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X |
  71                               WPA_KEY_MGMT_WPA_NONE |
  72                               WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X |
  73                               WPA_KEY_MGMT_PSK_SHA256 |
  74                               WPA_KEY_MGMT_IEEE8021X_SHA256)) {
  75                 u8 wpa_ie[80];
  76                 size_t wpa_ie_len = sizeof(wpa_ie);
  77                 wpa_supplicant_set_suites(wpa_s, NULL, ssid,
  78                                           wpa_ie, &wpa_ie_len);
  79         } else {
  80                 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
  81         }
  82
  83         if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
  84                 eapol_sm_invalidate_cached_session(wpa_s->eapol);
  85         old_ssid = wpa_s->current_ssid;
  86         wpa_s->current_ssid = ssid;
  87         wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
  88         wpa_supplicant_initiate_eapol(wpa_s);
  89         if (old_ssid != wpa_s->current_ssid)
  90                 wpas_notify_network_changed(wpa_s);
  91
  92         return 0;
  93 }
  94
  95
  96 static void wpa_supplicant_stop_countermeasures(void *eloop_ctx,
  97                                                 void *sock_ctx)
  98 {
  99         struct wpa_supplicant *wpa_s = eloop_ctx;
 100
 101         if (wpa_s->countermeasures) {
 102                 wpa_s->countermeasures = 0;
 103                 wpa_drv_set_countermeasures(wpa_s, 0);
 104                 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
 105                 wpa_supplicant_req_scan(wpa_s, 0, 0);
 106         }
 107 }
 108
 109
 110 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
 111 {
 112         int bssid_changed;
 113
 114         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
 115                 return;
 116
 117         wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
 118         bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
 119         os_memset(wpa_s->bssid, 0, ETH_ALEN);
 120         os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
 121         wpa_s->current_bss = NULL;
 122         if (bssid_changed)
 123                 wpas_notify_bssid_changed(wpa_s);
 124
 125         eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
 126         eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
 127         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
 128                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
 129         wpa_s->ap_ies_from_associnfo = 0;
 130 }
 131
 132
 133 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
 134 {
 135         struct wpa_ie_data ie;
 136         int pmksa_set = -1;
 137         size_t i;
 138
 139         if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
 140             ie.pmkid == NULL)
 141                 return;
 142
 143         for (i = 0; i < ie.num_pmkid; i++) {
 144                 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
 145                                                     ie.pmkid + i * PMKID_LEN,
 146                                                     NULL, NULL, 0);
 147                 if (pmksa_set == 0) {
 148                         eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
 149                         break;
 150                 }
 151         }
 152
 153         wpa_printf(MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from PMKSA "
 154                    "cache", pmksa_set == 0 ? "" : "not ");
 155 }
 156
 157
 158 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
 159                                                  union wpa_event_data *data)
 160 {
 161         if (data == NULL) {
 162                 wpa_printf(MSG_DEBUG, "RSN: No data in PMKID candidate event");
 163                 return;
 164         }
 165         wpa_printf(MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
 166                    " index=%d preauth=%d",
 167                    MAC2STR(data->pmkid_candidate.bssid),
 168                    data->pmkid_candidate.index,
 169                    data->pmkid_candidate.preauth);
 170
 171         pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
 172                             data->pmkid_candidate.index,
 173                             data->pmkid_candidate.preauth);
 174 }
 175
 176
 177 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
 178 {
 179         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
 180             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
 181                 return 0;
 182
 183 #ifdef IEEE8021X_EAPOL
 184         if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
 185             wpa_s->current_ssid &&
 186             !(wpa_s->current_ssid->eapol_flags &
 187               (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 188                EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
 189                 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
 190                  * plaintext or static WEP keys). */
 191                 return 0;
 192         }
 193 #endif /* IEEE8021X_EAPOL */
 194
 195         return 1;
 196 }
 197
 198
 199 /**
 200  * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
 201  * @wpa_s: pointer to wpa_supplicant data
 202  * @ssid: Configuration data for the network
 203  * Returns: 0 on success, -1 on failure
 204  *
 205  * This function is called when starting authentication with a network that is
 206  * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
 207  */
 208 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 209                               struct wpa_ssid *ssid)
 210 {
 211 #ifdef IEEE8021X_EAPOL
 212         int aka = 0, sim = 0, type;
 213
 214         if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL)
 215                 return 0;
 216
 217         if (ssid->eap.eap_methods == NULL) {
 218                 sim = 1;
 219                 aka = 1;
 220         } else {
 221                 struct eap_method_type *eap = ssid->eap.eap_methods;
 222                 while (eap->vendor != EAP_VENDOR_IETF ||
 223                        eap->method != EAP_TYPE_NONE) {
 224                         if (eap->vendor == EAP_VENDOR_IETF) {
 225                                 if (eap->method == EAP_TYPE_SIM)
 226                                         sim = 1;
 227                                 else if (eap->method == EAP_TYPE_AKA)
 228                                         aka = 1;
 229                         }
 230                         eap++;
 231                 }
 232         }
 233
 234         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
 235                 sim = 0;
 236         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL)
 237                 aka = 0;
 238
 239         if (!sim && !aka) {
 240                 wpa_printf(MSG_DEBUG, "Selected network is configured to use "
 241                            "SIM, but neither EAP-SIM nor EAP-AKA are enabled");
 242                 return 0;
 243         }
 244
 245         wpa_printf(MSG_DEBUG, "Selected network is configured to use SIM "
 246                    "(sim=%d aka=%d) - initialize PCSC", sim, aka);
 247         if (sim && aka)
 248                 type = SCARD_TRY_BOTH;
 249         else if (aka)
 250                 type = SCARD_USIM_ONLY;
 251         else
 252                 type = SCARD_GSM_SIM_ONLY;
 253
 254         wpa_s->scard = scard_init(type);
 255         if (wpa_s->scard == NULL) {
 256                 wpa_printf(MSG_WARNING, "Failed to initialize SIM "
 257                            "(pcsc-lite)");
 258                 return -1;
 259         }
 260         wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
 261         eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
 262 #endif /* IEEE8021X_EAPOL */
 263
 264         return 0;
 265 }
 266
 267
 268 #ifndef CONFIG_NO_SCAN_PROCESSING
 269 static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss,
 270                                         struct wpa_ssid *ssid)
 271 {
 272         int i, privacy = 0;
 273
 274         if (ssid->mixed_cell)
 275                 return 1;
 276
 277 #ifdef CONFIG_WPS
 278         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
 279                 return 1;
 280 #endif /* CONFIG_WPS */
 281
 282         for (i = 0; i < NUM_WEP_KEYS; i++) {
 283                 if (ssid->wep_key_len[i]) {
 284                         privacy = 1;
 285                         break;
 286                 }
 287         }
 288 #ifdef IEEE8021X_EAPOL
 289         if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
 290             ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 291                                  EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
 292                 privacy = 1;
 293 #endif /* IEEE8021X_EAPOL */
 294
 295         if (bss->caps & IEEE80211_CAP_PRIVACY)
 296                 return privacy;
 297         return !privacy;
 298 }
 299
 300
 301 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
 302                                          struct wpa_ssid *ssid,
 303                                          struct wpa_scan_res *bss)
 304 {
 305         struct wpa_ie_data ie;
 306         int proto_match = 0;
 307         const u8 *rsn_ie, *wpa_ie;
 308         int ret;
 309
 310         ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
 311         if (ret >= 0)
 312                 return ret;
 313
 314         rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 315         while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
 316                 proto_match++;
 317
 318                 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
 319                         wpa_printf(MSG_DEBUG, "   skip RSN IE - parse failed");
 320                         break;
 321                 }
 322                 if (!(ie.proto & ssid->proto)) {
 323                         wpa_printf(MSG_DEBUG, "   skip RSN IE - proto "
 324                                    "mismatch");
 325                         break;
 326                 }
 327
 328                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 329                         wpa_printf(MSG_DEBUG, "   skip RSN IE - PTK cipher "
 330                                    "mismatch");
 331                         break;
 332                 }
 333
 334                 if (!(ie.group_cipher & ssid->group_cipher)) {
 335                         wpa_printf(MSG_DEBUG, "   skip RSN IE - GTK cipher "
 336                                    "mismatch");
 337                         break;
 338                 }
 339
 340                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 341                         wpa_printf(MSG_DEBUG, "   skip RSN IE - key mgmt "
 342                                    "mismatch");
 343                         break;
 344                 }
 345
 346 #ifdef CONFIG_IEEE80211W
 347                 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
 348                     ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) {
 349                         wpa_printf(MSG_DEBUG, "   skip RSN IE - no mgmt frame "
 350                                    "protection");
 351                         break;
 352                 }
 353 #endif /* CONFIG_IEEE80211W */
 354
 355                 wpa_printf(MSG_DEBUG, "   selected based on RSN IE");
 356                 return 1;
 357         }
 358
 359         wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 360         while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
 361                 proto_match++;
 362
 363                 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
 364                         wpa_printf(MSG_DEBUG, "   skip WPA IE - parse failed");
 365                         break;
 366                 }
 367                 if (!(ie.proto & ssid->proto)) {
 368                         wpa_printf(MSG_DEBUG, "   skip WPA IE - proto "
 369                                    "mismatch");
 370                         break;
 371                 }
 372
 373                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 374                         wpa_printf(MSG_DEBUG, "   skip WPA IE - PTK cipher "
 375                                    "mismatch");
 376                         break;
 377                 }
 378
 379                 if (!(ie.group_cipher & ssid->group_cipher)) {
 380                         wpa_printf(MSG_DEBUG, "   skip WPA IE - GTK cipher "
 381                                    "mismatch");
 382                         break;
 383                 }
 384
 385                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 386                         wpa_printf(MSG_DEBUG, "   skip WPA IE - key mgmt "
 387                                    "mismatch");
 388                         break;
 389                 }
 390
 391                 wpa_printf(MSG_DEBUG, "   selected based on WPA IE");
 392                 return 1;
 393         }
 394
 395         if (proto_match == 0)
 396                 wpa_printf(MSG_DEBUG, "   skip - no WPA/RSN proto match");
 397
 398         return 0;
 399 }
 400
 401
 402 static int freq_allowed(int *freqs, int freq)
 403 {
 404         int i;
 405
 406         if (freqs == NULL)
 407                 return 1;
 408
 409         for (i = 0; freqs[i]; i++)
 410                 if (freqs[i] == freq)
 411                         return 1;
 412         return 0;
 413 }
 414
 415
 416 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
 417                                             int i, struct wpa_scan_res *bss,
 418                                             struct wpa_ssid *group)
 419 {
 420         const u8 *ssid_;
 421         u8 wpa_ie_len, rsn_ie_len, ssid_len;
 422         int wpa;
 423         struct wpa_blacklist *e;
 424         const u8 *ie;
 425         struct wpa_ssid *ssid;
 426
 427         ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
 428         ssid_ = ie ? ie + 2 : (u8 *) "";
 429         ssid_len = ie ? ie[1] : 0;
 430
 431         ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 432         wpa_ie_len = ie ? ie[1] : 0;
 433
 434         ie = wpa_scan_get_ie(bss, WLAN_EID_RSN);
 435         rsn_ie_len = ie ? ie[1] : 0;
 436
 437         wpa_printf(MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
 438                    "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s",
 439                    i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len),
 440                    wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
 441                    wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ?
 442                    " wps" : "");
 443
 444         e = wpa_blacklist_get(wpa_s, bss->bssid);
 445         if (e && e->count > 1) {
 446                 wpa_printf(MSG_DEBUG, "   skip - blacklisted");
 447                 return 0;
 448         }
 449
 450         if (ssid_len == 0) {
 451                 wpa_printf(MSG_DEBUG, "   skip - SSID not known");
 452                 return 0;
 453         }
 454
 455         wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
 456
 457         for (ssid = group; ssid; ssid = ssid->pnext) {
 458                 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
 459
 460                 if (ssid->disabled) {
 461                         wpa_printf(MSG_DEBUG, "   skip - disabled");
 462                         continue;
 463                 }
 464
 465 #ifdef CONFIG_WPS
 466                 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
 467                         wpa_printf(MSG_DEBUG, "   skip - blacklisted (WPS)");
 468                         continue;
 469                 }
 470
 471                 if (wpa && ssid->ssid_len == 0 &&
 472                     wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
 473                         check_ssid = 0;
 474
 475                 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
 476                         /* Only allow wildcard SSID match if an AP
 477                          * advertises active WPS operation that matches
 478                          * with our mode. */
 479                         check_ssid = 1;
 480                         if (ssid->ssid_len == 0 &&
 481                             wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
 482                                 check_ssid = 0;
 483                 }
 484 #endif /* CONFIG_WPS */
 485
 486                 if (check_ssid &&
 487                     (ssid_len != ssid->ssid_len ||
 488                      os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) {
 489                         wpa_printf(MSG_DEBUG, "   skip - SSID mismatch");
 490                         continue;
 491                 }
 492
 493                 if (ssid->bssid_set &&
 494                     os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
 495                         wpa_printf(MSG_DEBUG, "   skip - BSSID mismatch");
 496                         continue;
 497                 }
 498
 499                 if (wpa && !wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
 500                         continue;
 501
 502                 if (!wpa &&
 503                     !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
 504                     !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
 505                     !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
 506                         wpa_printf(MSG_DEBUG, "   skip - non-WPA network not "
 507                                    "allowed");
 508                         continue;
 509                 }
 510
 511                 if (!wpa && !wpa_supplicant_match_privacy(bss, ssid)) {
 512                         wpa_printf(MSG_DEBUG, "   skip - privacy mismatch");
 513                         continue;
 514                 }
 515
 516                 if (!wpa && (bss->caps & IEEE80211_CAP_IBSS)) {
 517                         wpa_printf(MSG_DEBUG, "   skip - IBSS (adhoc) "
 518                                    "network");
 519                         continue;
 520                 }
 521
 522                 if (!freq_allowed(ssid->freq_list, bss->freq)) {
 523                         wpa_printf(MSG_DEBUG, "   skip - frequency not "
 524                                    "allowed");
 525                         continue;
 526                 }
 527
 528 #ifdef CONFIG_P2P
 529                 /*
 530                  * TODO: skip the AP if its P2P IE has Group Formation
 531                  * bit set in the P2P Group Capability Bitmap and we
 532                  * are not in Group Formation with that device.
 533                  */
 534 #endif /* CONFIG_P2P */
 535
 536                 /* Matching configuration found */
 537                 return ssid;
 538         }
 539
 540         /* No matching configuration found */
 541         return 0;
 542 }
 543
 544
 545 static struct wpa_bss *
 546 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
 547                           struct wpa_scan_results *scan_res,
 548                           struct wpa_ssid *group,
 549                           struct wpa_ssid **selected_ssid)
 550 {
 551         size_t i;
 552
 553         wpa_printf(MSG_DEBUG, "Selecting BSS from priority group %d",
 554                    group->priority);
 555
 556         for (i = 0; i < scan_res->num; i++) {
 557                 struct wpa_scan_res *bss = scan_res->res[i];
 558                 const u8 *ie, *ssid;
 559                 u8 ssid_len;
 560
 561                 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group);
 562                 if (!*selected_ssid)
 563                         continue;
 564
 565                 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
 566                 ssid = ie ? ie + 2 : (u8 *) "";
 567                 ssid_len = ie ? ie[1] : 0;
 568
 569                 wpa_printf(MSG_DEBUG, "   selected BSS " MACSTR " ssid='%s'",
 570                            MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len));
 571                 return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len);
 572         }
 573
 574         return NULL;
 575 }
 576
 577
 578 static struct wpa_bss *
 579 wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
 580                             struct wpa_scan_results *scan_res,
 581                             struct wpa_ssid **selected_ssid)
 582 {
 583         struct wpa_bss *selected = NULL;
 584         int prio;
 585
 586         while (selected == NULL) {
 587                 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
 588                         selected = wpa_supplicant_select_bss(
 589                                 wpa_s, scan_res, wpa_s->conf->pssid[prio],
 590                                 selected_ssid);
 591                         if (selected)
 592                                 break;
 593                 }
 594
 595                 if (selected == NULL && wpa_s->blacklist) {
 596                         wpa_printf(MSG_DEBUG, "No APs found - clear blacklist "
 597                                    "and try again");
 598                         wpa_blacklist_clear(wpa_s);
 599                         wpa_s->blacklist_cleared++;
 600                 } else if (selected == NULL)
 601                         break;
 602         }
 603
 604         return selected;
 605 }
 606
 607
 608 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
 609                                         int timeout_sec, int timeout_usec)
 610 {
 611         if (!wpa_supplicant_enabled_networks(wpa_s->conf)) {
 612                 /*
 613                  * No networks are enabled; short-circuit request so
 614                  * we don't wait timeout seconds before transitioning
 615                  * to INACTIVE state.
 616                  */
 617                 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
 618                 return;
 619         }
 620         wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
 621 }
 622
 623
 624 void wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
 625                             struct wpa_bss *selected,
 626                             struct wpa_ssid *ssid)
 627 {
 628         if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
 629                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
 630                         "PBC session overlap");
 631 #ifdef CONFIG_P2P
 632                 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1)
 633                         return;
 634 #endif /* CONFIG_P2P */
 635                 wpas_wps_cancel(wpa_s);
 636                 return;
 637         }
 638
 639         /*
 640          * Do not trigger new association unless the BSSID has changed or if
 641          * reassociation is requested. If we are in process of associating with
 642          * the selected BSSID, do not trigger new attempt.
 643          */
 644         if (wpa_s->reassociate ||
 645             (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
 646              (wpa_s->wpa_state != WPA_ASSOCIATING ||
 647               os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
 648               0))) {
 649                 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
 650                         wpa_supplicant_req_new_scan(wpa_s, 10, 0);
 651                         return;
 652                 }
 653                 wpa_supplicant_associate(wpa_s, selected, ssid);
 654         } else {
 655                 wpa_printf(MSG_DEBUG, "Already associated with the selected "
 656                            "AP");
 657         }
 658 }
 659
 660
 661 static struct wpa_ssid *
 662 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
 663 {
 664         int prio;
 665         struct wpa_ssid *ssid;
 666
 667         for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
 668                 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
 669                 {
 670                         if (ssid->disabled)
 671                                 continue;
 672                         if (ssid->mode == IEEE80211_MODE_IBSS ||
 673                             ssid->mode == IEEE80211_MODE_AP)
 674                                 return ssid;
 675                 }
 676         }
 677         return NULL;
 678 }
 679
 680
 681 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
 682  * on BSS added and BSS changed events */
 683 static void wpa_supplicant_rsn_preauth_scan_results(
 684         struct wpa_supplicant *wpa_s, struct wpa_scan_results *scan_res)
 685 {
 686         int i;
 687
 688         if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
 689                 return;
 690
 691         for (i = scan_res->num - 1; i >= 0; i--) {
 692                 const u8 *ssid, *rsn;
 693                 struct wpa_scan_res *r;
 694
 695                 r = scan_res->res[i];
 696
 697                 ssid = wpa_scan_get_ie(r, WLAN_EID_SSID);
 698                 if (ssid == NULL)
 699                         continue;
 700
 701                 rsn = wpa_scan_get_ie(r, WLAN_EID_RSN);
 702                 if (rsn == NULL)
 703                         continue;
 704
 705                 rsn_preauth_scan_result(wpa_s->wpa, r->bssid, ssid, rsn);
 706         }
 707
 708 }
 709
 710
 711 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
 712                                        struct wpa_bss *selected,
 713                                        struct wpa_ssid *ssid,
 714                                        struct wpa_scan_results *scan_res)
 715 {
 716         size_t i;
 717         struct wpa_scan_res *current_bss = NULL;
 718         int min_diff;
 719
 720         if (wpa_s->reassociate)
 721                 return 1; /* explicit request to reassociate */
 722         if (wpa_s->wpa_state < WPA_ASSOCIATED)
 723                 return 1; /* we are not associated; continue */
 724         if (wpa_s->current_ssid == NULL)
 725                 return 1; /* unknown current SSID */
 726         if (wpa_s->current_ssid != ssid)
 727                 return 1; /* different network block */
 728
 729         for (i = 0; i < scan_res->num; i++) {
 730                 struct wpa_scan_res *res = scan_res->res[i];
 731                 const u8 *ie;
 732                 if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0)
 733                         continue;
 734
 735                 ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
 736                 if (ie == NULL)
 737                         continue;
 738                 if (ie[1] != wpa_s->current_ssid->ssid_len ||
 739                     os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0)
 740                         continue;
 741                 current_bss = res;
 742                 break;
 743         }
 744
 745         if (!current_bss)
 746                 return 1; /* current BSS not seen in scan results */
 747
 748         wpa_printf(MSG_DEBUG, "Considering within-ESS reassociation");
 749         wpa_printf(MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
 750                    MAC2STR(current_bss->bssid), current_bss->level);
 751         wpa_printf(MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
 752                    MAC2STR(selected->bssid), selected->level);
 753
 754         if (wpa_s->current_ssid->bssid_set &&
 755             os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
 756             0) {
 757                 wpa_printf(MSG_DEBUG, "Allow reassociation - selected BSS has "
 758                            "preferred BSSID");
 759                 return 1;
 760         }
 761
 762         min_diff = 2;
 763         if (current_bss->level < 0) {
 764                 if (current_bss->level < -85)
 765                         min_diff = 1;
 766                 else if (current_bss->level < -80)
 767                         min_diff = 2;
 768                 else if (current_bss->level < -75)
 769                         min_diff = 3;
 770                 else if (current_bss->level < -70)
 771                         min_diff = 4;
 772                 else
 773                         min_diff = 5;
 774         }
 775         if (abs(current_bss->level - selected->level) < min_diff) {
 776                 wpa_printf(MSG_DEBUG, "Skip roam - too small difference in "
 777                            "signal level");
 778                 return 0;
 779         }
 780
 781         return 1;
 782 }
 783
 784
 785 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
 786                                               union wpa_event_data *data)
 787 {
 788         struct wpa_bss *selected;
 789         struct wpa_ssid *ssid = NULL;
 790         struct wpa_scan_results *scan_res;
 791         int ap = 0;
 792
 793 #ifdef CONFIG_AP
 794         if (wpa_s->ap_iface)
 795                 ap = 1;
 796 #endif /* CONFIG_AP */
 797
 798         wpa_supplicant_notify_scanning(wpa_s, 0);
 799
 800         scan_res = wpa_supplicant_get_scan_results(wpa_s,
 801                                                    data ? &data->scan_info :
 802                                                    NULL, 1);
 803         if (scan_res == NULL) {
 804                 if (wpa_s->conf->ap_scan == 2 || ap)
 805                         return;
 806                 wpa_printf(MSG_DEBUG, "Failed to get scan results - try "
 807                            "scanning again");
 808                 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
 809                 return;
 810         }
 811
 812         if (wpa_s->scan_res_handler) {
 813                 wpa_s->scan_res_handler(wpa_s, scan_res);
 814                 wpa_s->scan_res_handler = NULL;
 815                 wpa_scan_results_free(scan_res);
 816                 return;
 817         }
 818
 819         if (ap) {
 820                 wpa_printf(MSG_DEBUG, "Ignore scan results in AP mode");
 821                 wpa_scan_results_free(scan_res);
 822                 return;
 823         }
 824
 825         wpa_printf(MSG_DEBUG, "New scan results available");
 826         wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
 827         wpas_notify_scan_results(wpa_s);
 828
 829         wpas_notify_scan_done(wpa_s, 1);
 830
 831         if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) {
 832                 wpa_scan_results_free(scan_res);
 833                 return;
 834         }
 835
 836         if (wpa_s->disconnected) {
 837                 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
 838                 wpa_scan_results_free(scan_res);
 839                 return;
 840         }
 841
 842         if (bgscan_notify_scan(wpa_s, scan_res) == 1) {
 843                 wpa_scan_results_free(scan_res);
 844                 return;
 845         }
 846
 847         wpa_supplicant_rsn_preauth_scan_results(wpa_s, scan_res);
 848
 849         selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid);
 850
 851         if (selected) {
 852                 int skip;
 853                 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid,
 854                                                     scan_res);
 855                 wpa_scan_results_free(scan_res);
 856                 if (skip)
 857                         return;
 858                 wpa_supplicant_connect(wpa_s, selected, ssid);
 859         } else {
 860                 wpa_scan_results_free(scan_res);
 861                 wpa_printf(MSG_DEBUG, "No suitable network found");
 862                 ssid = wpa_supplicant_pick_new_network(wpa_s);
 863                 if (ssid) {
 864                         wpa_printf(MSG_DEBUG, "Setup a new network");
 865                         wpa_supplicant_associate(wpa_s, NULL, ssid);
 866                 } else {
 867                         int timeout_sec = 5;
 868                         int timeout_usec = 0;
 869 #ifdef CONFIG_P2P
 870                         if (wpa_s->p2p_in_provisioning) {
 871                                 /*
 872                                  * Use shorter wait during P2P Provisioning
 873                                  * state to speed up group formation.
 874                                  */
 875                                 timeout_sec = 0;
 876                                 timeout_usec = 250000;
 877                         }
 878 #endif /* CONFIG_P2P */
 879                         wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
 880                                                     timeout_usec);
 881                 }
 882         }
 883 }
 884 #endif /* CONFIG_NO_SCAN_PROCESSING */
 885
 886
 887 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
 888                                           union wpa_event_data *data)
 889 {
 890         int l, len, found = 0, wpa_found, rsn_found;
 891         const u8 *p;
 892
 893         wpa_printf(MSG_DEBUG, "Association info event");
 894         if (data->assoc_info.req_ies)
 895                 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
 896                             data->assoc_info.req_ies_len);
 897         if (data->assoc_info.resp_ies)
 898                 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
 899                             data->assoc_info.resp_ies_len);
 900         if (data->assoc_info.beacon_ies)
 901                 wpa_hexdump(MSG_DEBUG, "beacon_ies",
 902                             data->assoc_info.beacon_ies,
 903                             data->assoc_info.beacon_ies_len);
 904         if (data->assoc_info.freq)
 905                 wpa_printf(MSG_DEBUG, "freq=%u MHz", data->assoc_info.freq);
 906
 907         p = data->assoc_info.req_ies;
 908         l = data->assoc_info.req_ies_len;
 909
 910         /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
 911         while (p && l >= 2) {
 912                 len = p[1] + 2;
 913                 if (len > l) {
 914                         wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
 915                                     p, l);
 916                         break;
 917                 }
 918                 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
 919                      (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
 920                     (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
 921                         if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
 922                                 break;
 923                         found = 1;
 924                         wpa_find_assoc_pmkid(wpa_s);
 925                         break;
 926                 }
 927                 l -= len;
 928                 p += len;
 929         }
 930         if (!found && data->assoc_info.req_ies)
 931                 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
 932
 933 #ifdef CONFIG_IEEE80211R
 934 #ifdef CONFIG_SME
 935         if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
 936                 u8 bssid[ETH_ALEN];
 937                 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
 938                     wpa_ft_validate_reassoc_resp(wpa_s->wpa,
 939                                                  data->assoc_info.resp_ies,
 940                                                  data->assoc_info.resp_ies_len,
 941                                                  bssid) < 0) {
 942                         wpa_printf(MSG_DEBUG, "FT: Validation of "
 943                                    "Reassociation Response failed");
 944                         wpa_supplicant_deauthenticate(
 945                                 wpa_s, WLAN_REASON_INVALID_IE);
 946                         return -1;
 947                 }
 948         }
 949
 950         p = data->assoc_info.resp_ies;
 951         l = data->assoc_info.resp_ies_len;
 952
 953 #ifdef CONFIG_WPS_STRICT
 954         if (wpa_s->current_ssid &&
 955             wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
 956                 struct wpabuf *wps;
 957                 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
 958                 if (wps == NULL) {
 959                         wpa_printf(MSG_INFO, "WPS-STRICT: AP did not include "
 960                                    "WPS IE in (Re)Association Response");
 961                         return -1;
 962                 }
 963
 964                 if (wps_validate_assoc_resp(wps) < 0) {
 965                         wpabuf_free(wps);
 966                         wpa_supplicant_deauthenticate(
 967                                 wpa_s, WLAN_REASON_INVALID_IE);
 968                         return -1;
 969                 }
 970                 wpabuf_free(wps);
 971         }
 972 #endif /* CONFIG_WPS_STRICT */
 973
 974         /* Go through the IEs and make a copy of the MDIE, if present. */
 975         while (p && l >= 2) {
 976                 len = p[1] + 2;
 977                 if (len > l) {
 978                         wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
 979                                     p, l);
 980                         break;
 981                 }
 982                 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
 983                     p[1] >= MOBILITY_DOMAIN_ID_LEN) {
 984                         wpa_s->sme.ft_used = 1;
 985                         os_memcpy(wpa_s->sme.mobility_domain, p + 2,
 986                                   MOBILITY_DOMAIN_ID_LEN);
 987                         break;
 988                 }
 989                 l -= len;
 990                 p += len;
 991         }
 992 #endif /* CONFIG_SME */
 993
 994         wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
 995                              data->assoc_info.resp_ies_len);
 996 #endif /* CONFIG_IEEE80211R */
 997
 998         /* WPA/RSN IE from Beacon/ProbeResp */
 999         p = data->assoc_info.beacon_ies;
1000         l = data->assoc_info.beacon_ies_len;
1001
1002         /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1003          */
1004         wpa_found = rsn_found = 0;
1005         while (p && l >= 2) {
1006                 len = p[1] + 2;
1007                 if (len > l) {
1008                         wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1009                                     p, l);
1010                         break;
1011                 }
1012                 if (!wpa_found &&
1013                     p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1014                     os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1015                         wpa_found = 1;
1016                         wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1017                 }
1018
1019                 if (!rsn_found &&
1020                     p[0] == WLAN_EID_RSN && p[1] >= 2) {
1021                         rsn_found = 1;
1022                         wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1023                 }
1024
1025                 l -= len;
1026                 p += len;
1027         }
1028
1029         if (!wpa_found && data->assoc_info.beacon_ies)
1030                 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1031         if (!rsn_found && data->assoc_info.beacon_ies)
1032                 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1033         if (wpa_found || rsn_found)
1034                 wpa_s->ap_ies_from_associnfo = 1;
1035
1036         wpa_s->assoc_freq = data->assoc_info.freq;
1037
1038         return 0;
1039 }
1040
1041
1042 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1043                                        union wpa_event_data *data)
1044 {
1045         u8 bssid[ETH_ALEN];
1046         int ft_completed;
1047         int bssid_changed;
1048         struct wpa_driver_capa capa;
1049
1050 #ifdef CONFIG_AP
1051         if (wpa_s->ap_iface) {
1052                 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1053                                     data->assoc_info.addr,
1054                                     data->assoc_info.req_ies,
1055                                     data->assoc_info.req_ies_len);
1056                 return;
1057         }
1058 #endif /* CONFIG_AP */
1059
1060         ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1061         if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1062                 return;
1063
1064         wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
1065         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME)
1066                 os_memcpy(bssid, wpa_s->bssid, ETH_ALEN);
1067         if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) ||
1068             (wpa_drv_get_bssid(wpa_s, bssid) >= 0 &&
1069              os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0)) {
1070                 wpa_msg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1071                         MACSTR, MAC2STR(bssid));
1072                 bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN);
1073                 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1074                 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1075                 if (bssid_changed)
1076                         wpas_notify_bssid_changed(wpa_s);
1077
1078                 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1079                         wpa_clear_keys(wpa_s, bssid);
1080                 }
1081                 if (wpa_supplicant_select_config(wpa_s) < 0) {
1082                         wpa_supplicant_disassociate(
1083                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1084                         return;
1085                 }
1086                 if (wpa_s->current_ssid) {
1087                         struct wpa_bss *bss = NULL;
1088                         struct wpa_ssid *ssid = wpa_s->current_ssid;
1089                         if (ssid->ssid_len > 0)
1090                                 bss = wpa_bss_get(wpa_s, bssid,
1091                                                   ssid->ssid, ssid->ssid_len);
1092                         if (!bss)
1093                                 bss = wpa_bss_get_bssid(wpa_s, bssid);
1094                         if (bss)
1095                                 wpa_s->current_bss = bss;
1096                 }
1097         }
1098
1099 #ifdef CONFIG_SME
1100         os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1101         wpa_s->sme.prev_bssid_set = 1;
1102 #endif /* CONFIG_SME */
1103
1104         wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1105         if (wpa_s->current_ssid) {
1106                 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1107                  * initialized before association, but for other modes,
1108                  * initialize PC/SC here, if the current configuration needs
1109                  * smartcard or SIM/USIM. */
1110                 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1111         }
1112         wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1113         if (wpa_s->l2)
1114                 l2_packet_notify_auth_start(wpa_s->l2);
1115
1116         /*
1117          * Set portEnabled first to FALSE in order to get EAP state machine out
1118          * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1119          * state machine may transit to AUTHENTICATING state based on obsolete
1120          * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1121          * AUTHENTICATED without ever giving chance to EAP state machine to
1122          * reset the state.
1123          */
1124         if (!ft_completed) {
1125                 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1126                 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1127         }
1128         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1129                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1130         /* 802.1X::portControl = Auto */
1131         eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1132         wpa_s->eapol_received = 0;
1133         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1134             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1135             (wpa_s->current_ssid &&
1136              wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1137                 wpa_supplicant_cancel_auth_timeout(wpa_s);
1138                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1139         } else if (!ft_completed) {
1140                 /* Timeout for receiving the first EAPOL packet */
1141                 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
1142         }
1143         wpa_supplicant_cancel_scan(wpa_s);
1144
1145         if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
1146             wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1147                 /*
1148                  * We are done; the driver will take care of RSN 4-way
1149                  * handshake.
1150                  */
1151                 wpa_supplicant_cancel_auth_timeout(wpa_s);
1152                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
1153                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
1154                 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
1155         }
1156
1157         if (wpa_s->pending_eapol_rx) {
1158                 struct os_time now, age;
1159                 os_get_time(&now);
1160                 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
1161                 if (age.sec == 0 && age.usec < 100000 &&
1162                     os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
1163                     0) {
1164                         wpa_printf(MSG_DEBUG, "Process pending EAPOL frame "
1165                                    "that was received just before association "
1166                                    "notification");
1167                         wpa_supplicant_rx_eapol(
1168                                 wpa_s, wpa_s->pending_eapol_rx_src,
1169                                 wpabuf_head(wpa_s->pending_eapol_rx),
1170                                 wpabuf_len(wpa_s->pending_eapol_rx));
1171                 }
1172                 wpabuf_free(wpa_s->pending_eapol_rx);
1173                 wpa_s->pending_eapol_rx = NULL;
1174         }
1175
1176 #ifdef CONFIG_BGSCAN
1177         if (wpa_s->current_ssid != wpa_s->bgscan_ssid) {
1178                 bgscan_deinit(wpa_s);
1179                 if (wpa_s->current_ssid && wpa_s->current_ssid->bgscan) {
1180                         if (bgscan_init(wpa_s, wpa_s->current_ssid)) {
1181                                 wpa_printf(MSG_DEBUG, "Failed to initialize "
1182                                            "bgscan");
1183                                 /*
1184                                  * Live without bgscan; it is only used as a
1185                                  * roaming optimization, so the initial
1186                                  * connection is not affected.
1187                                  */
1188                         } else
1189                                 wpa_s->bgscan_ssid = wpa_s->current_ssid;
1190                 } else
1191                         wpa_s->bgscan_ssid = NULL;
1192         }
1193 #endif /* CONFIG_BGSCAN */
1194
1195         if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1196              wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
1197             wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 &&
1198             capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) {
1199                 /* Set static WEP keys again */
1200                 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
1201         }
1202 }
1203
1204
1205 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
1206                                           u16 reason_code)
1207 {
1208         const u8 *bssid;
1209 #ifdef CONFIG_SME
1210         int authenticating;
1211         u8 prev_pending_bssid[ETH_ALEN];
1212
1213         authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
1214         os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
1215 #endif /* CONFIG_SME */
1216
1217         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
1218                 /*
1219                  * At least Host AP driver and a Prism3 card seemed to be
1220                  * generating streams of disconnected events when configuring
1221                  * IBSS for WPA-None. Ignore them for now.
1222                  */
1223                 wpa_printf(MSG_DEBUG, "Disconnect event - ignore in "
1224                            "IBSS/WPA-None mode");
1225                 return;
1226         }
1227
1228         if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE &&
1229             wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
1230                 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
1231                         "pre-shared key may be incorrect");
1232         }
1233         if (!wpa_s->auto_reconnect_disabled ||
1234             wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) {
1235                 wpa_printf(MSG_DEBUG, "WPA: Auto connect enabled: try to "
1236                            "reconnect (wps=%d)",
1237                            wpa_s->key_mgmt == WPA_KEY_MGMT_WPS);
1238                 if (wpa_s->wpa_state >= WPA_ASSOCIATING)
1239                         wpa_supplicant_req_scan(wpa_s, 0, 100000);
1240         } else {
1241                 wpa_printf(MSG_DEBUG, "WPA: Auto connect disabled: do not try "
1242                            "to re-connect");
1243                 wpa_s->reassociate = 0;
1244                 wpa_s->disconnected = 1;
1245         }
1246         bssid = wpa_s->bssid;
1247         if (is_zero_ether_addr(bssid))
1248                 bssid = wpa_s->pending_bssid;
1249         wpa_blacklist_add(wpa_s, bssid);
1250         wpa_sm_notify_disassoc(wpa_s->wpa);
1251         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
1252                 " reason=%d",
1253                 MAC2STR(bssid), reason_code);
1254         if (wpa_supplicant_dynamic_keys(wpa_s)) {
1255                 wpa_printf(MSG_DEBUG, "Disconnect event - remove keys");
1256                 wpa_s->keys_cleared = 0;
1257                 wpa_clear_keys(wpa_s, wpa_s->bssid);
1258         }
1259         wpa_supplicant_mark_disassoc(wpa_s);
1260         bgscan_deinit(wpa_s);
1261         wpa_s->bgscan_ssid = NULL;
1262 #ifdef CONFIG_SME
1263         if (authenticating &&
1264             (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
1265                 /*
1266                  * mac80211-workaround to force deauth on failed auth cmd,
1267                  * requires us to remain in authenticating state to allow the
1268                  * second authentication attempt to be continued properly.
1269                  */
1270                 wpa_printf(MSG_DEBUG, "SME: Allow pending authentication to "
1271                            "proceed after disconnection event");
1272                 wpa_supplicant_set_state(wpa_s, WPA_AUTHENTICATING);
1273                 os_memcpy(wpa_s->pending_bssid, prev_pending_bssid, ETH_ALEN);
1274         }
1275 #endif /* CONFIG_SME */
1276 }
1277
1278
1279 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1280 static void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx,
1281                                                     void *sock_ctx)
1282 {
1283         struct wpa_supplicant *wpa_s = eloop_ctx;
1284
1285         if (!wpa_s->pending_mic_error_report)
1286                 return;
1287
1288         wpa_printf(MSG_DEBUG, "WPA: Sending pending MIC error report");
1289         wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
1290         wpa_s->pending_mic_error_report = 0;
1291 }
1292 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1293
1294
1295 static void
1296 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
1297                                          union wpa_event_data *data)
1298 {
1299         int pairwise;
1300         struct os_time t;
1301
1302         wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
1303         pairwise = (data && data->michael_mic_failure.unicast);
1304         os_get_time(&t);
1305         if ((wpa_s->last_michael_mic_error &&
1306              t.sec - wpa_s->last_michael_mic_error <= 60) ||
1307             wpa_s->pending_mic_error_report) {
1308                 if (wpa_s->pending_mic_error_report) {
1309                         /*
1310                          * Send the pending MIC error report immediately since
1311                          * we are going to start countermeasures and AP better
1312                          * do the same.
1313                          */
1314                         wpa_sm_key_request(wpa_s->wpa, 1,
1315                                            wpa_s->pending_mic_error_pairwise);
1316                 }
1317
1318                 /* Send the new MIC error report immediately since we are going
1319                  * to start countermeasures and AP better do the same.
1320                  */
1321                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1322
1323                 /* initialize countermeasures */
1324                 wpa_s->countermeasures = 1;
1325                 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
1326
1327                 /*
1328                  * Need to wait for completion of request frame. We do not get
1329                  * any callback for the message completion, so just wait a
1330                  * short while and hope for the best. */
1331                 os_sleep(0, 10000);
1332
1333                 wpa_drv_set_countermeasures(wpa_s, 1);
1334                 wpa_supplicant_deauthenticate(wpa_s,
1335                                               WLAN_REASON_MICHAEL_MIC_FAILURE);
1336                 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
1337                                      wpa_s, NULL);
1338                 eloop_register_timeout(60, 0,
1339                                        wpa_supplicant_stop_countermeasures,
1340                                        wpa_s, NULL);
1341                 /* TODO: mark the AP rejected for 60 second. STA is
1342                  * allowed to associate with another AP.. */
1343         } else {
1344 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
1345                 if (wpa_s->mic_errors_seen) {
1346                         /*
1347                          * Reduce the effectiveness of Michael MIC error
1348                          * reports as a means for attacking against TKIP if
1349                          * more than one MIC failure is noticed with the same
1350                          * PTK. We delay the transmission of the reports by a
1351                          * random time between 0 and 60 seconds in order to
1352                          * force the attacker wait 60 seconds before getting
1353                          * the information on whether a frame resulted in a MIC
1354                          * failure.
1355                          */
1356                         u8 rval[4];
1357                         int sec;
1358
1359                         if (os_get_random(rval, sizeof(rval)) < 0)
1360                                 sec = os_random() % 60;
1361                         else
1362                                 sec = WPA_GET_BE32(rval) % 60;
1363                         wpa_printf(MSG_DEBUG, "WPA: Delay MIC error report %d "
1364                                    "seconds", sec);
1365                         wpa_s->pending_mic_error_report = 1;
1366                         wpa_s->pending_mic_error_pairwise = pairwise;
1367                         eloop_cancel_timeout(
1368                                 wpa_supplicant_delayed_mic_error_report,
1369                                 wpa_s, NULL);
1370                         eloop_register_timeout(
1371                                 sec, os_random() % 1000000,
1372                                 wpa_supplicant_delayed_mic_error_report,
1373                                 wpa_s, NULL);
1374                 } else {
1375                         wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1376                 }
1377 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1378                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
1379 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
1380         }
1381         wpa_s->last_michael_mic_error = t.sec;
1382         wpa_s->mic_errors_seen++;
1383 }
1384
1385
1386 #ifdef CONFIG_TERMINATE_ONLASTIF
1387 static int any_interfaces(struct wpa_supplicant *head)
1388 {
1389         struct wpa_supplicant *wpa_s;
1390
1391         for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
1392                 if (!wpa_s->interface_removed)
1393                         return 1;
1394         return 0;
1395 }
1396 #endif /* CONFIG_TERMINATE_ONLASTIF */
1397
1398
1399 static void
1400 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
1401                                       union wpa_event_data *data)
1402 {
1403         if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
1404                 return;
1405
1406         switch (data->interface_status.ievent) {
1407         case EVENT_INTERFACE_ADDED:
1408                 if (!wpa_s->interface_removed)
1409                         break;
1410                 wpa_s->interface_removed = 0;
1411                 wpa_printf(MSG_DEBUG, "Configured interface was added.");
1412                 if (wpa_supplicant_driver_init(wpa_s) < 0) {
1413                         wpa_printf(MSG_INFO, "Failed to initialize the driver "
1414                                    "after interface was added.");
1415                 }
1416                 break;
1417         case EVENT_INTERFACE_REMOVED:
1418                 wpa_printf(MSG_DEBUG, "Configured interface was removed.");
1419                 wpa_s->interface_removed = 1;
1420                 wpa_supplicant_mark_disassoc(wpa_s);
1421                 l2_packet_deinit(wpa_s->l2);
1422                 wpa_s->l2 = NULL;
1423 #ifdef CONFIG_TERMINATE_ONLASTIF
1424                 /* check if last interface */
1425                 if (!any_interfaces(wpa_s->global->ifaces))
1426                         eloop_terminate();
1427 #endif /* CONFIG_TERMINATE_ONLASTIF */
1428                 break;
1429         }
1430 }
1431
1432
1433 #ifdef CONFIG_PEERKEY
1434 static void
1435 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
1436                               union wpa_event_data *data)
1437 {
1438         if (data == NULL)
1439                 return;
1440         wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
1441 }
1442 #endif /* CONFIG_PEERKEY */
1443
1444
1445 #ifdef CONFIG_IEEE80211R
1446 static void
1447 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
1448                                  union wpa_event_data *data)
1449 {
1450         if (data == NULL)
1451                 return;
1452
1453         if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
1454                                     data->ft_ies.ies_len,
1455                                     data->ft_ies.ft_action,
1456                                     data->ft_ies.target_ap,
1457                                     data->ft_ies.ric_ies,
1458                                     data->ft_ies.ric_ies_len) < 0) {
1459                 /* TODO: prevent MLME/driver from trying to associate? */
1460         }
1461 }
1462 #endif /* CONFIG_IEEE80211R */
1463
1464
1465 #ifdef CONFIG_IBSS_RSN
1466 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
1467                                                 union wpa_event_data *data)
1468 {
1469         if (data == NULL)
1470                 return;
1471         ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
1472 }
1473 #endif /* CONFIG_IBSS_RSN */
1474
1475
1476 #ifdef CONFIG_IEEE80211R
1477 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
1478                          size_t len)
1479 {
1480         const u8 *sta_addr, *target_ap_addr;
1481         u16 status;
1482
1483         wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
1484         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
1485                 return; /* only SME case supported for now */
1486         if (len < 1 + 2 * ETH_ALEN + 2)
1487                 return;
1488         if (data[0] != 2)
1489                 return; /* Only FT Action Response is supported for now */
1490         sta_addr = data + 1;
1491         target_ap_addr = data + 1 + ETH_ALEN;
1492         status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
1493         wpa_printf(MSG_DEBUG, "FT: Received FT Action Response: STA " MACSTR
1494                    " TargetAP " MACSTR " status %u",
1495                    MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
1496
1497         if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
1498                 wpa_printf(MSG_DEBUG, "FT: Foreign STA Address " MACSTR
1499                            " in FT Action Response", MAC2STR(sta_addr));
1500                 return;
1501         }
1502
1503         if (status) {
1504                 wpa_printf(MSG_DEBUG, "FT: FT Action Response indicates "
1505                            "failure (status code %d)", status);
1506                 /* TODO: report error to FT code(?) */
1507                 return;
1508         }
1509
1510         if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
1511                                     len - (1 + 2 * ETH_ALEN + 2), 1,
1512                                     target_ap_addr, NULL, 0) < 0)
1513                 return;
1514
1515 #ifdef CONFIG_SME
1516         {
1517                 struct wpa_bss *bss;
1518                 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
1519                 if (bss)
1520                         wpa_s->sme.freq = bss->freq;
1521                 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
1522                 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
1523                               WLAN_AUTH_FT);
1524         }
1525 #endif /* CONFIG_SME */
1526 }
1527 #endif /* CONFIG_IEEE80211R */
1528
1529
1530 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
1531                           union wpa_event_data *data)
1532 {
1533         struct wpa_supplicant *wpa_s = ctx;
1534         u16 reason_code = 0;
1535
1536         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
1537             event != EVENT_INTERFACE_ENABLED &&
1538             event != EVENT_INTERFACE_STATUS) {
1539                 wpa_printf(MSG_DEBUG, "Ignore event %d while interface is "
1540                            "disabled", event);
1541                 return;
1542         }
1543
1544         wpa_printf(MSG_DEBUG, "Event %d received on interface %s",
1545                    event, wpa_s->ifname);
1546
1547         switch (event) {
1548         case EVENT_AUTH:
1549                 sme_event_auth(wpa_s, data);
1550                 break;
1551         case EVENT_ASSOC:
1552                 wpa_supplicant_event_assoc(wpa_s, data);
1553                 break;
1554         case EVENT_DISASSOC:
1555                 wpa_printf(MSG_DEBUG, "Disassociation notification");
1556                 if (data) {
1557                         wpa_printf(MSG_DEBUG, " * reason %u",
1558                                    data->disassoc_info.reason_code);
1559                         if (data->disassoc_info.addr)
1560                                 wpa_printf(MSG_DEBUG, " * address " MACSTR,
1561                                            MAC2STR(data->disassoc_info.addr));
1562                 }
1563 #ifdef CONFIG_AP
1564                 if (wpa_s->ap_iface && data && data->disassoc_info.addr) {
1565                         hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
1566                                                data->disassoc_info.addr);
1567                         break;
1568                 }
1569 #endif /* CONFIG_AP */
1570                 if (data) {
1571                         reason_code = data->disassoc_info.reason_code;
1572                         wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
1573                                     data->disassoc_info.ie,
1574                                     data->disassoc_info.ie_len);
1575 #ifdef CONFIG_P2P
1576                         wpas_p2p_disassoc_notif(
1577                                 wpa_s, data->disassoc_info.addr, reason_code,
1578                                 data->disassoc_info.ie,
1579                                 data->disassoc_info.ie_len);
1580 #endif /* CONFIG_P2P */
1581                 }
1582                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
1583                         sme_event_disassoc(wpa_s, data);
1584                 /* fall through */
1585         case EVENT_DEAUTH:
1586                 if (event == EVENT_DEAUTH) {
1587                         wpa_printf(MSG_DEBUG, "Deauthentication notification");
1588                         if (data) {
1589                                 reason_code = data->deauth_info.reason_code;
1590                                 wpa_printf(MSG_DEBUG, " * reason %u",
1591                                            data->deauth_info.reason_code);
1592                                 if (data->deauth_info.addr) {
1593                                         wpa_printf(MSG_DEBUG, " * address "
1594                                                    MACSTR,
1595                                                    MAC2STR(data->deauth_info.
1596                                                            addr));
1597                                 }
1598                                 wpa_hexdump(MSG_DEBUG,
1599                                             "Deauthentication frame IE(s)",
1600                                             data->deauth_info.ie,
1601                                             data->deauth_info.ie_len);
1602 #ifdef CONFIG_P2P
1603                                 wpas_p2p_deauth_notif(
1604                                         wpa_s, data->deauth_info.addr,
1605                                         reason_code,
1606                                         data->deauth_info.ie,
1607                                         data->deauth_info.ie_len);
1608 #endif /* CONFIG_P2P */
1609                         }
1610                 }
1611 #ifdef CONFIG_AP
1612                 if (wpa_s->ap_iface && data && data->deauth_info.addr) {
1613                         hostapd_notif_disassoc(wpa_s->ap_iface->bss[0],
1614                                                data->deauth_info.addr);
1615                         break;
1616                 }
1617 #endif /* CONFIG_AP */
1618                 wpa_supplicant_event_disassoc(wpa_s, reason_code);
1619                 break;
1620         case EVENT_MICHAEL_MIC_FAILURE:
1621                 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
1622                 break;
1623 #ifndef CONFIG_NO_SCAN_PROCESSING
1624         case EVENT_SCAN_RESULTS:
1625                 wpa_supplicant_event_scan_results(wpa_s, data);
1626                 break;
1627 #endif /* CONFIG_NO_SCAN_PROCESSING */
1628         case EVENT_ASSOCINFO:
1629                 wpa_supplicant_event_associnfo(wpa_s, data);
1630                 break;
1631         case EVENT_INTERFACE_STATUS:
1632                 wpa_supplicant_event_interface_status(wpa_s, data);
1633                 break;
1634         case EVENT_PMKID_CANDIDATE:
1635                 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
1636                 break;
1637 #ifdef CONFIG_PEERKEY
1638         case EVENT_STKSTART:
1639                 wpa_supplicant_event_stkstart(wpa_s, data);
1640                 break;
1641 #endif /* CONFIG_PEERKEY */
1642 #ifdef CONFIG_IEEE80211R
1643         case EVENT_FT_RESPONSE:
1644                 wpa_supplicant_event_ft_response(wpa_s, data);
1645                 break;
1646 #endif /* CONFIG_IEEE80211R */
1647 #ifdef CONFIG_IBSS_RSN
1648         case EVENT_IBSS_RSN_START:
1649                 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
1650                 break;
1651 #endif /* CONFIG_IBSS_RSN */
1652         case EVENT_ASSOC_REJECT:
1653                 sme_event_assoc_reject(wpa_s, data);
1654                 break;
1655         case EVENT_AUTH_TIMED_OUT:
1656                 sme_event_auth_timed_out(wpa_s, data);
1657                 break;
1658         case EVENT_ASSOC_TIMED_OUT:
1659                 sme_event_assoc_timed_out(wpa_s, data);
1660                 break;
1661 #ifdef CONFIG_AP
1662         case EVENT_TX_STATUS:
1663                 wpa_printf(MSG_DEBUG, "EVENT_TX_STATUS on %s dst=" MACSTR
1664                            " type=%d stype=%d pending_dst=" MACSTR,
1665                            wpa_s->ifname, MAC2STR(data->tx_status.dst),
1666                            data->tx_status.type, data->tx_status.stype,
1667                            MAC2STR(wpa_s->parent->pending_action_dst));
1668                 if (wpa_s->ap_iface == NULL) {
1669 #ifdef CONFIG_P2P
1670                         if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
1671                             data->tx_status.stype == WLAN_FC_STYPE_ACTION)
1672                                 wpas_send_action_tx_status(
1673                                         wpa_s, data->tx_status.dst,
1674                                         data->tx_status.data,
1675                                         data->tx_status.data_len,
1676                                         data->tx_status.ack);
1677 #endif /* CONFIG_P2P */
1678                         break;
1679                 }
1680 #ifdef CONFIG_P2P
1681                 /*
1682                  * Catch TX status events for Action frames we sent via group
1683                  * interface in GO mode.
1684                  */
1685                 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
1686                     data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
1687                     os_memcmp(wpa_s->parent->pending_action_dst,
1688                               data->tx_status.dst, ETH_ALEN) == 0) {
1689                         wpas_send_action_tx_status(
1690                                 wpa_s->parent, data->tx_status.dst,
1691                                 data->tx_status.data,
1692                                 data->tx_status.data_len,
1693                                 data->tx_status.ack);
1694                         break;
1695                 }
1696 #endif /* CONFIG_P2P */
1697                 switch (data->tx_status.type) {
1698                 case WLAN_FC_TYPE_MGMT:
1699                         ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
1700                                       data->tx_status.data_len,
1701                                       data->tx_status.stype,
1702                                       data->tx_status.ack);
1703                         break;
1704                 case WLAN_FC_TYPE_DATA:
1705                         ap_tx_status(wpa_s, data->tx_status.dst,
1706                                      data->tx_status.data,
1707                                      data->tx_status.data_len,
1708                                      data->tx_status.ack);
1709                         break;
1710                 }
1711                 break;
1712         case EVENT_RX_FROM_UNKNOWN:
1713                 if (wpa_s->ap_iface == NULL)
1714                         break;
1715                 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.frame,
1716                                        data->rx_from_unknown.len);
1717                 break;
1718         case EVENT_RX_MGMT:
1719                 if (wpa_s->ap_iface == NULL) {
1720 #ifdef CONFIG_P2P
1721                         u16 fc, stype;
1722                         const struct ieee80211_mgmt *mgmt;
1723                         mgmt = (const struct ieee80211_mgmt *)
1724                                 data->rx_mgmt.frame;
1725                         fc = le_to_host16(mgmt->frame_control);
1726                         stype = WLAN_FC_GET_STYPE(fc);
1727                         if (stype == WLAN_FC_STYPE_PROBE_REQ &&
1728                             data->rx_mgmt.frame_len > 24) {
1729                                 const u8 *src = mgmt->sa;
1730                                 const u8 *ie = mgmt->u.probe_req.variable;
1731                                 size_t ie_len = data->rx_mgmt.frame_len -
1732                                         (mgmt->u.probe_req.variable -
1733                                          data->rx_mgmt.frame);
1734                                 wpas_p2p_probe_req_rx(wpa_s, src, ie, ie_len);
1735                                 break;
1736                         }
1737 #endif /* CONFIG_P2P */
1738                         wpa_printf(MSG_DEBUG, "AP: ignore received management "
1739                                    "frame in non-AP mode");
1740                         break;
1741                 }
1742                 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
1743                 break;
1744 #endif /* CONFIG_AP */
1745         case EVENT_RX_ACTION:
1746                 wpa_printf(MSG_DEBUG, "Received Action frame: SA=" MACSTR
1747                            " Category=%u DataLen=%d freq=%d MHz",
1748                            MAC2STR(data->rx_action.sa),
1749                            data->rx_action.category, (int) data->rx_action.len,
1750                            data->rx_action.freq);
1751 #ifdef CONFIG_IEEE80211R
1752                 if (data->rx_action.category == WLAN_ACTION_FT) {
1753                         ft_rx_action(wpa_s, data->rx_action.data,
1754                                      data->rx_action.len);
1755                         break;
1756                 }
1757 #endif /* CONFIG_IEEE80211R */
1758 #ifdef CONFIG_P2P
1759                 wpas_p2p_rx_action(wpa_s, data->rx_action.da,
1760                                    data->rx_action.sa,
1761                                    data->rx_action.bssid,
1762                                    data->rx_action.category,
1763                                    data->rx_action.data,
1764                                    data->rx_action.len, data->rx_action.freq);
1765 #endif /* CONFIG_P2P */
1766                 break;
1767 #ifdef CONFIG_P2P
1768         case EVENT_REMAIN_ON_CHANNEL:
1769                 wpas_p2p_remain_on_channel_cb(
1770                         wpa_s, data->remain_on_channel.freq,
1771                         data->remain_on_channel.duration);
1772                 break;
1773         case EVENT_CANCEL_REMAIN_ON_CHANNEL:
1774                 wpas_p2p_cancel_remain_on_channel_cb(
1775                         wpa_s, data->remain_on_channel.freq);
1776                 break;
1777         case EVENT_RX_PROBE_REQ:
1778                 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
1779                                       data->rx_probe_req.ie,
1780                                       data->rx_probe_req.ie_len);
1781                 break;
1782 #endif /* CONFIG_P2P */
1783 #ifdef CONFIG_CLIENT_MLME
1784         case EVENT_MLME_RX: {
1785                 struct ieee80211_rx_status rx_status;
1786                 os_memset(&rx_status, 0, sizeof(rx_status));
1787                 rx_status.freq = data->mlme_rx.freq;
1788                 rx_status.channel = data->mlme_rx.channel;
1789                 rx_status.ssi = data->mlme_rx.ssi;
1790                 ieee80211_sta_rx(wpa_s, data->mlme_rx.buf, data->mlme_rx.len,
1791                                  &rx_status);
1792                 break;
1793         }
1794 #endif /* CONFIG_CLIENT_MLME */
1795         case EVENT_EAPOL_RX:
1796                 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
1797                                         data->eapol_rx.data,
1798                                         data->eapol_rx.data_len);
1799                 break;
1800         case EVENT_SIGNAL_CHANGE:
1801                 bgscan_notify_signal_change(
1802                         wpa_s, data->signal_change.above_threshold,
1803                         data->signal_change.current_signal);
1804                 break;
1805         case EVENT_INTERFACE_ENABLED:
1806                 wpa_printf(MSG_DEBUG, "Interface was enabled");
1807                 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
1808                         if (!wpa_s->ap_iface) {
1809                                 wpa_supplicant_set_state(wpa_s,
1810                                                          WPA_DISCONNECTED);
1811                                 wpa_supplicant_req_scan(wpa_s, 0, 0);
1812                         } else
1813                                 wpa_supplicant_set_state(wpa_s,
1814                                                          WPA_COMPLETED);
1815                 }
1816                 break;
1817         case EVENT_INTERFACE_DISABLED:
1818                 wpa_printf(MSG_DEBUG, "Interface was disabled");
1819                 wpa_supplicant_mark_disassoc(wpa_s);
1820                 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
1821                 break;
1822         default:
1823                 wpa_printf(MSG_INFO, "Unknown event %d", event);
1824                 break;
1825         }
1826 }