wpa_supplicant/events.c

   1 /*
   2  * WPA Supplicant - Driver event processing
   3  * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "includes.h"
  10
  11 #include "common.h"
  12 #include "eapol_supp/eapol_supp_sm.h"
  13 #include "rsn_supp/wpa.h"
  14 #include "eloop.h"
  15 #include "config.h"
  16 #include "l2_packet/l2_packet.h"
  17 #include "wpa_supplicant_i.h"
  18 #include "driver_i.h"
  19 #include "pcsc_funcs.h"
  20 #include "rsn_supp/preauth.h"
  21 #include "rsn_supp/pmksa_cache.h"
  22 #include "common/wpa_ctrl.h"
  23 #include "eap_peer/eap.h"
  24 #include "ap/hostapd.h"
  25 #include "p2p/p2p.h"
  26 #include "wnm_sta.h"
  27 #include "notify.h"
  28 #include "common/ieee802_11_defs.h"
  29 #include "common/ieee802_11_common.h"
  30 #include "crypto/random.h"
  31 #include "blacklist.h"
  32 #include "wpas_glue.h"
  33 #include "wps_supplicant.h"
  34 #include "ibss_rsn.h"
  35 #include "sme.h"
  36 #include "gas_query.h"
  37 #include "p2p_supplicant.h"
  38 #include "bgscan.h"
  39 #include "autoscan.h"
  40 #include "ap.h"
  41 #include "bss.h"
  42 #include "scan.h"
  43 #include "offchannel.h"
  44 #include "interworking.h"
  45 #include "mesh.h"
  46 #include "mesh_mpm.h"
  47 #include "wmm_ac.h"
  48
  49
  50 #ifndef CONFIG_NO_SCAN_PROCESSING
  51 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
  52                                               int new_scan, int own_request);
  53 #endif /* CONFIG_NO_SCAN_PROCESSING */
  54
  55
  56 static int wpas_temp_disabled(struct wpa_supplicant *wpa_s,
  57                               struct wpa_ssid *ssid)
  58 {
  59         struct os_reltime now;
  60
  61         if (ssid == NULL || ssid->disabled_until.sec == 0)
  62                 return 0;
  63
  64         os_get_reltime(&now);
  65         if (ssid->disabled_until.sec > now.sec)
  66                 return ssid->disabled_until.sec - now.sec;
  67
  68         wpas_clear_temp_disabled(wpa_s, ssid, 0);
  69
  70         return 0;
  71 }
  72
  73
  74 static struct wpa_bss * wpa_supplicant_get_new_bss(
  75         struct wpa_supplicant *wpa_s, const u8 *bssid)
  76 {
  77         struct wpa_bss *bss = NULL;
  78         struct wpa_ssid *ssid = wpa_s->current_ssid;
  79
  80         if (ssid->ssid_len > 0)
  81                 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len);
  82         if (!bss)
  83                 bss = wpa_bss_get_bssid(wpa_s, bssid);
  84
  85         return bss;
  86 }
  87
  88
  89 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s)
  90 {
  91         struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
  92
  93         if (!bss) {
  94                 wpa_supplicant_update_scan_results(wpa_s);
  95
  96                 /* Get the BSS from the new scan results */
  97                 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid);
  98         }
  99
 100         if (bss)
 101                 wpa_s->current_bss = bss;
 102 }
 103
 104
 105 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s)
 106 {
 107         struct wpa_ssid *ssid, *old_ssid;
 108         int res;
 109
 110         if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) {
 111                 wpa_supplicant_update_current_bss(wpa_s);
 112                 return 0;
 113         }
 114
 115         wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association "
 116                 "information");
 117         ssid = wpa_supplicant_get_ssid(wpa_s);
 118         if (ssid == NULL) {
 119                 wpa_msg(wpa_s, MSG_INFO,
 120                         "No network configuration found for the current AP");
 121                 return -1;
 122         }
 123
 124         if (wpas_network_disabled(wpa_s, ssid)) {
 125                 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled");
 126                 return -1;
 127         }
 128
 129         if (disallowed_bssid(wpa_s, wpa_s->bssid) ||
 130             disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) {
 131                 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed");
 132                 return -1;
 133         }
 134
 135         res = wpas_temp_disabled(wpa_s, ssid);
 136         if (res > 0) {
 137                 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily "
 138                         "disabled for %d second(s)", res);
 139                 return -1;
 140         }
 141
 142         wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the "
 143                 "current AP");
 144         if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
 145                 u8 wpa_ie[80];
 146                 size_t wpa_ie_len = sizeof(wpa_ie);
 147                 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
 148                                               wpa_ie, &wpa_ie_len) < 0)
 149                         wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites");
 150         } else {
 151                 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
 152         }
 153
 154         if (wpa_s->current_ssid && wpa_s->current_ssid != ssid)
 155                 eapol_sm_invalidate_cached_session(wpa_s->eapol);
 156         old_ssid = wpa_s->current_ssid;
 157         wpa_s->current_ssid = ssid;
 158
 159         wpa_supplicant_update_current_bss(wpa_s);
 160
 161         wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid);
 162         wpa_supplicant_initiate_eapol(wpa_s);
 163         if (old_ssid != wpa_s->current_ssid)
 164                 wpas_notify_network_changed(wpa_s);
 165
 166         return 0;
 167 }
 168
 169
 170 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx)
 171 {
 172         struct wpa_supplicant *wpa_s = eloop_ctx;
 173
 174         if (wpa_s->countermeasures) {
 175                 wpa_s->countermeasures = 0;
 176                 wpa_drv_set_countermeasures(wpa_s, 0);
 177                 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped");
 178                 wpa_supplicant_req_scan(wpa_s, 0, 0);
 179         }
 180 }
 181
 182
 183 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s)
 184 {
 185         int bssid_changed;
 186
 187         wnm_bss_keep_alive_deinit(wpa_s);
 188
 189 #ifdef CONFIG_IBSS_RSN
 190         ibss_rsn_deinit(wpa_s->ibss_rsn);
 191         wpa_s->ibss_rsn = NULL;
 192 #endif /* CONFIG_IBSS_RSN */
 193
 194 #ifdef CONFIG_AP
 195         wpa_supplicant_ap_deinit(wpa_s);
 196 #endif /* CONFIG_AP */
 197
 198         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
 199                 return;
 200
 201         wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
 202         bssid_changed = !is_zero_ether_addr(wpa_s->bssid);
 203         os_memset(wpa_s->bssid, 0, ETH_ALEN);
 204         os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
 205         sme_clear_on_disassoc(wpa_s);
 206 #ifdef CONFIG_P2P
 207         os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN);
 208 #endif /* CONFIG_P2P */
 209         wpa_s->current_bss = NULL;
 210         wpa_s->assoc_freq = 0;
 211
 212         if (bssid_changed)
 213                 wpas_notify_bssid_changed(wpa_s);
 214
 215         eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
 216         eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
 217         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
 218                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
 219         wpa_s->ap_ies_from_associnfo = 0;
 220         wpa_s->current_ssid = NULL;
 221         eapol_sm_notify_config(wpa_s->eapol, NULL, NULL);
 222         wpa_s->key_mgmt = 0;
 223
 224         wpas_rrm_reset(wpa_s);
 225 }
 226
 227
 228 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s)
 229 {
 230         struct wpa_ie_data ie;
 231         int pmksa_set = -1;
 232         size_t i;
 233
 234         if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 ||
 235             ie.pmkid == NULL)
 236                 return;
 237
 238         for (i = 0; i < ie.num_pmkid; i++) {
 239                 pmksa_set = pmksa_cache_set_current(wpa_s->wpa,
 240                                                     ie.pmkid + i * PMKID_LEN,
 241                                                     NULL, NULL, 0);
 242                 if (pmksa_set == 0) {
 243                         eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
 244                         break;
 245                 }
 246         }
 247
 248         wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from "
 249                 "PMKSA cache", pmksa_set == 0 ? "" : "not ");
 250 }
 251
 252
 253 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s,
 254                                                  union wpa_event_data *data)
 255 {
 256         if (data == NULL) {
 257                 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate "
 258                         "event");
 259                 return;
 260         }
 261         wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR
 262                 " index=%d preauth=%d",
 263                 MAC2STR(data->pmkid_candidate.bssid),
 264                 data->pmkid_candidate.index,
 265                 data->pmkid_candidate.preauth);
 266
 267         pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid,
 268                             data->pmkid_candidate.index,
 269                             data->pmkid_candidate.preauth);
 270 }
 271
 272
 273 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s)
 274 {
 275         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
 276             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE)
 277                 return 0;
 278
 279 #ifdef IEEE8021X_EAPOL
 280         if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA &&
 281             wpa_s->current_ssid &&
 282             !(wpa_s->current_ssid->eapol_flags &
 283               (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 284                EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) {
 285                 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either
 286                  * plaintext or static WEP keys). */
 287                 return 0;
 288         }
 289 #endif /* IEEE8021X_EAPOL */
 290
 291         return 1;
 292 }
 293
 294
 295 /**
 296  * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC
 297  * @wpa_s: pointer to wpa_supplicant data
 298  * @ssid: Configuration data for the network
 299  * Returns: 0 on success, -1 on failure
 300  *
 301  * This function is called when starting authentication with a network that is
 302  * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA).
 303  */
 304 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 305                               struct wpa_ssid *ssid)
 306 {
 307 #ifdef IEEE8021X_EAPOL
 308 #ifdef PCSC_FUNCS
 309         int aka = 0, sim = 0;
 310
 311         if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
 312             wpa_s->scard != NULL || wpa_s->conf->external_sim)
 313                 return 0;
 314
 315         if (ssid == NULL || ssid->eap.eap_methods == NULL) {
 316                 sim = 1;
 317                 aka = 1;
 318         } else {
 319                 struct eap_method_type *eap = ssid->eap.eap_methods;
 320                 while (eap->vendor != EAP_VENDOR_IETF ||
 321                        eap->method != EAP_TYPE_NONE) {
 322                         if (eap->vendor == EAP_VENDOR_IETF) {
 323                                 if (eap->method == EAP_TYPE_SIM)
 324                                         sim = 1;
 325                                 else if (eap->method == EAP_TYPE_AKA ||
 326                                          eap->method == EAP_TYPE_AKA_PRIME)
 327                                         aka = 1;
 328                         }
 329                         eap++;
 330                 }
 331         }
 332
 333         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL)
 334                 sim = 0;
 335         if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL &&
 336             eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) ==
 337             NULL)
 338                 aka = 0;
 339
 340         if (!sim && !aka) {
 341                 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to "
 342                         "use SIM, but neither EAP-SIM nor EAP-AKA are "
 343                         "enabled");
 344                 return 0;
 345         }
 346
 347         wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM "
 348                 "(sim=%d aka=%d) - initialize PCSC", sim, aka);
 349
 350         wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader);
 351         if (wpa_s->scard == NULL) {
 352                 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM "
 353                         "(pcsc-lite)");
 354                 return -1;
 355         }
 356         wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard);
 357         eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
 358 #endif /* PCSC_FUNCS */
 359 #endif /* IEEE8021X_EAPOL */
 360
 361         return 0;
 362 }
 363
 364
 365 #ifndef CONFIG_NO_SCAN_PROCESSING
 366
 367 static int has_wep_key(struct wpa_ssid *ssid)
 368 {
 369         int i;
 370
 371         for (i = 0; i < NUM_WEP_KEYS; i++) {
 372                 if (ssid->wep_key_len[i])
 373                         return 1;
 374         }
 375
 376         return 0;
 377 }
 378
 379
 380 static int wpa_supplicant_match_privacy(struct wpa_bss *bss,
 381                                         struct wpa_ssid *ssid)
 382 {
 383         int privacy = 0;
 384
 385         if (ssid->mixed_cell)
 386                 return 1;
 387
 388 #ifdef CONFIG_WPS
 389         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS)
 390                 return 1;
 391 #endif /* CONFIG_WPS */
 392
 393         if (has_wep_key(ssid))
 394                 privacy = 1;
 395
 396 #ifdef IEEE8021X_EAPOL
 397         if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
 398             ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST |
 399                                  EAPOL_FLAG_REQUIRE_KEY_BROADCAST))
 400                 privacy = 1;
 401 #endif /* IEEE8021X_EAPOL */
 402
 403         if (wpa_key_mgmt_wpa(ssid->key_mgmt))
 404                 privacy = 1;
 405
 406         if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN)
 407                 privacy = 1;
 408
 409         if (bss->caps & IEEE80211_CAP_PRIVACY)
 410                 return privacy;
 411         return !privacy;
 412 }
 413
 414
 415 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s,
 416                                          struct wpa_ssid *ssid,
 417                                          struct wpa_bss *bss)
 418 {
 419         struct wpa_ie_data ie;
 420         int proto_match = 0;
 421         const u8 *rsn_ie, *wpa_ie;
 422         int ret;
 423         int wep_ok;
 424
 425         ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss);
 426         if (ret >= 0)
 427                 return ret;
 428
 429         /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */
 430         wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
 431                 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
 432                   ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) ||
 433                  (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA));
 434
 435         rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 436         while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) {
 437                 proto_match++;
 438
 439                 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) {
 440                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - parse "
 441                                 "failed");
 442                         break;
 443                 }
 444
 445                 if (wep_ok &&
 446                     (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
 447                 {
 448                         wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on TSN "
 449                                 "in RSN IE");
 450                         return 1;
 451                 }
 452
 453                 if (!(ie.proto & ssid->proto)) {
 454                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - proto "
 455                                 "mismatch");
 456                         break;
 457                 }
 458
 459                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 460                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - PTK "
 461                                 "cipher mismatch");
 462                         break;
 463                 }
 464
 465                 if (!(ie.group_cipher & ssid->group_cipher)) {
 466                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - GTK "
 467                                 "cipher mismatch");
 468                         break;
 469                 }
 470
 471                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 472                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - key mgmt "
 473                                 "mismatch");
 474                         break;
 475                 }
 476
 477 #ifdef CONFIG_IEEE80211W
 478                 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) &&
 479                     (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ?
 480                      wpa_s->conf->pmf : ssid->ieee80211w) ==
 481                     MGMT_FRAME_PROTECTION_REQUIRED) {
 482                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip RSN IE - no mgmt "
 483                                 "frame protection");
 484                         break;
 485                 }
 486 #endif /* CONFIG_IEEE80211W */
 487
 488                 wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on RSN IE");
 489                 return 1;
 490         }
 491
 492         wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 493         while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) {
 494                 proto_match++;
 495
 496                 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) {
 497                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - parse "
 498                                 "failed");
 499                         break;
 500                 }
 501
 502                 if (wep_ok &&
 503                     (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104)))
 504                 {
 505                         wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on TSN "
 506                                 "in WPA IE");
 507                         return 1;
 508                 }
 509
 510                 if (!(ie.proto & ssid->proto)) {
 511                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - proto "
 512                                 "mismatch");
 513                         break;
 514                 }
 515
 516                 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) {
 517                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - PTK "
 518                                 "cipher mismatch");
 519                         break;
 520                 }
 521
 522                 if (!(ie.group_cipher & ssid->group_cipher)) {
 523                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - GTK "
 524                                 "cipher mismatch");
 525                         break;
 526                 }
 527
 528                 if (!(ie.key_mgmt & ssid->key_mgmt)) {
 529                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip WPA IE - key mgmt "
 530                                 "mismatch");
 531                         break;
 532                 }
 533
 534                 wpa_dbg(wpa_s, MSG_DEBUG, "   selected based on WPA IE");
 535                 return 1;
 536         }
 537
 538         if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie &&
 539             !rsn_ie) {
 540                 wpa_dbg(wpa_s, MSG_DEBUG, "   allow for non-WPA IEEE 802.1X");
 541                 return 1;
 542         }
 543
 544         if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) &&
 545             wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) {
 546                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - no WPA/RSN proto match");
 547                 return 0;
 548         }
 549
 550         if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) &&
 551             wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) {
 552                 wpa_dbg(wpa_s, MSG_DEBUG, "   allow in OSEN");
 553                 return 1;
 554         }
 555
 556         if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) {
 557                 wpa_dbg(wpa_s, MSG_DEBUG, "   allow in non-WPA/WPA2");
 558                 return 1;
 559         }
 560
 561         wpa_dbg(wpa_s, MSG_DEBUG, "   reject due to mismatch with "
 562                 "WPA/WPA2");
 563
 564         return 0;
 565 }
 566
 567
 568 static int freq_allowed(int *freqs, int freq)
 569 {
 570         int i;
 571
 572         if (freqs == NULL)
 573                 return 1;
 574
 575         for (i = 0; freqs[i]; i++)
 576                 if (freqs[i] == freq)
 577                         return 1;
 578         return 0;
 579 }
 580
 581
 582 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
 583 {
 584         const struct hostapd_hw_modes *mode = NULL, *modes;
 585         const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES };
 586         const u8 *rate_ie;
 587         int i, j, k;
 588
 589         if (bss->freq == 0)
 590                 return 1; /* Cannot do matching without knowing band */
 591
 592         modes = wpa_s->hw.modes;
 593         if (modes == NULL) {
 594                 /*
 595                  * The driver does not provide any additional information
 596                  * about the utilized hardware, so allow the connection attempt
 597                  * to continue.
 598                  */
 599                 return 1;
 600         }
 601
 602         for (i = 0; i < wpa_s->hw.num_modes; i++) {
 603                 for (j = 0; j < modes[i].num_channels; j++) {
 604                         int freq = modes[i].channels[j].freq;
 605                         if (freq == bss->freq) {
 606                                 if (mode &&
 607                                     mode->mode == HOSTAPD_MODE_IEEE80211G)
 608                                         break; /* do not allow 802.11b replace
 609                                                 * 802.11g */
 610                                 mode = &modes[i];
 611                                 break;
 612                         }
 613                 }
 614         }
 615
 616         if (mode == NULL)
 617                 return 0;
 618
 619         for (i = 0; i < (int) sizeof(scan_ie); i++) {
 620                 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]);
 621                 if (rate_ie == NULL)
 622                         continue;
 623
 624                 for (j = 2; j < rate_ie[1] + 2; j++) {
 625                         int flagged = !!(rate_ie[j] & 0x80);
 626                         int r = (rate_ie[j] & 0x7f) * 5;
 627
 628                         /*
 629                          * IEEE Std 802.11n-2009 7.3.2.2:
 630                          * The new BSS Membership selector value is encoded
 631                          * like a legacy basic rate, but it is not a rate and
 632                          * only indicates if the BSS members are required to
 633                          * support the mandatory features of Clause 20 [HT PHY]
 634                          * in order to join the BSS.
 635                          */
 636                         if (flagged && ((rate_ie[j] & 0x7f) ==
 637                                         BSS_MEMBERSHIP_SELECTOR_HT_PHY)) {
 638                                 if (!ht_supported(mode)) {
 639                                         wpa_dbg(wpa_s, MSG_DEBUG,
 640                                                 "   hardware does not support "
 641                                                 "HT PHY");
 642                                         return 0;
 643                                 }
 644                                 continue;
 645                         }
 646
 647                         /* There's also a VHT selector for 802.11ac */
 648                         if (flagged && ((rate_ie[j] & 0x7f) ==
 649                                         BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) {
 650                                 if (!vht_supported(mode)) {
 651                                         wpa_dbg(wpa_s, MSG_DEBUG,
 652                                                 "   hardware does not support "
 653                                                 "VHT PHY");
 654                                         return 0;
 655                                 }
 656                                 continue;
 657                         }
 658
 659                         if (!flagged)
 660                                 continue;
 661
 662                         /* check for legacy basic rates */
 663                         for (k = 0; k < mode->num_rates; k++) {
 664                                 if (mode->rates[k] == r)
 665                                         break;
 666                         }
 667                         if (k == mode->num_rates) {
 668                                 /*
 669                                  * IEEE Std 802.11-2007 7.3.2.2 demands that in
 670                                  * order to join a BSS all required rates
 671                                  * have to be supported by the hardware.
 672                                  */
 673                                 wpa_dbg(wpa_s, MSG_DEBUG, "   hardware does "
 674                                         "not support required rate %d.%d Mbps",
 675                                         r / 10, r % 10);
 676                                 return 0;
 677                         }
 678                 }
 679         }
 680
 681         return 1;
 682 }
 683
 684
 685 /*
 686  * Test whether BSS is in an ESS.
 687  * This is done differently in DMG (60 GHz) and non-DMG bands
 688  */
 689 static int bss_is_ess(struct wpa_bss *bss)
 690 {
 691         if (bss_is_dmg(bss)) {
 692                 return (bss->caps & IEEE80211_CAP_DMG_MASK) ==
 693                         IEEE80211_CAP_DMG_AP;
 694         }
 695
 696         return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) ==
 697                 IEEE80211_CAP_ESS);
 698 }
 699
 700
 701 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask)
 702 {
 703         size_t i;
 704
 705         for (i = 0; i < ETH_ALEN; i++) {
 706                 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i]))
 707                         return 0;
 708         }
 709         return 1;
 710 }
 711
 712
 713 static int addr_in_list(const u8 *addr, const u8 *list, size_t num)
 714 {
 715         size_t i;
 716
 717         for (i = 0; i < num; i++) {
 718                 const u8 *a = list + i * ETH_ALEN * 2;
 719                 const u8 *m = a + ETH_ALEN;
 720
 721                 if (match_mac_mask(a, addr, m))
 722                         return 1;
 723         }
 724         return 0;
 725 }
 726
 727
 728 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s,
 729                                             int i, struct wpa_bss *bss,
 730                                             struct wpa_ssid *group,
 731                                             int only_first_ssid)
 732 {
 733         u8 wpa_ie_len, rsn_ie_len;
 734         int wpa;
 735         struct wpa_blacklist *e;
 736         const u8 *ie;
 737         struct wpa_ssid *ssid;
 738         int osen;
 739
 740         ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
 741         wpa_ie_len = ie ? ie[1] : 0;
 742
 743         ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
 744         rsn_ie_len = ie ? ie[1] : 0;
 745
 746         ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE);
 747         osen = ie != NULL;
 748
 749         wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' "
 750                 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s%s%s",
 751                 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len),
 752                 wpa_ie_len, rsn_ie_len, bss->caps, bss->level,
 753                 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "",
 754                 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) ||
 755                  wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ?
 756                 " p2p" : "",
 757                 osen ? " osen=1" : "");
 758
 759         e = wpa_blacklist_get(wpa_s, bss->bssid);
 760         if (e) {
 761                 int limit = 1;
 762                 if (wpa_supplicant_enabled_networks(wpa_s) == 1) {
 763                         /*
 764                          * When only a single network is enabled, we can
 765                          * trigger blacklisting on the first failure. This
 766                          * should not be done with multiple enabled networks to
 767                          * avoid getting forced to move into a worse ESS on
 768                          * single error if there are no other BSSes of the
 769                          * current ESS.
 770                          */
 771                         limit = 0;
 772                 }
 773                 if (e->count > limit) {
 774                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - blacklisted "
 775                                 "(count=%d limit=%d)", e->count, limit);
 776                         return NULL;
 777                 }
 778         }
 779
 780         if (bss->ssid_len == 0) {
 781                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID not known");
 782                 return NULL;
 783         }
 784
 785         if (disallowed_bssid(wpa_s, bss->bssid)) {
 786                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - BSSID disallowed");
 787                 return NULL;
 788         }
 789
 790         if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) {
 791                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID disallowed");
 792                 return NULL;
 793         }
 794
 795         wpa = wpa_ie_len > 0 || rsn_ie_len > 0;
 796
 797         for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) {
 798                 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0);
 799                 int res;
 800
 801                 if (wpas_network_disabled(wpa_s, ssid)) {
 802                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - disabled");
 803                         continue;
 804                 }
 805
 806                 res = wpas_temp_disabled(wpa_s, ssid);
 807                 if (res > 0) {
 808                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - disabled "
 809                                 "temporarily for %d second(s)", res);
 810                         continue;
 811                 }
 812
 813 #ifdef CONFIG_WPS
 814                 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) {
 815                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - blacklisted "
 816                                 "(WPS)");
 817                         continue;
 818                 }
 819
 820                 if (wpa && ssid->ssid_len == 0 &&
 821                     wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
 822                         check_ssid = 0;
 823
 824                 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) {
 825                         /* Only allow wildcard SSID match if an AP
 826                          * advertises active WPS operation that matches
 827                          * with our mode. */
 828                         check_ssid = 1;
 829                         if (ssid->ssid_len == 0 &&
 830                             wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss))
 831                                 check_ssid = 0;
 832                 }
 833 #endif /* CONFIG_WPS */
 834
 835                 if (ssid->bssid_set && ssid->ssid_len == 0 &&
 836                     os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0)
 837                         check_ssid = 0;
 838
 839                 if (check_ssid &&
 840                     (bss->ssid_len != ssid->ssid_len ||
 841                      os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) {
 842                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - SSID mismatch");
 843                         continue;
 844                 }
 845
 846                 if (ssid->bssid_set &&
 847                     os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) {
 848                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - BSSID mismatch");
 849                         continue;
 850                 }
 851
 852                 /* check blacklist */
 853                 if (ssid->num_bssid_blacklist &&
 854                     addr_in_list(bss->bssid, ssid->bssid_blacklist,
 855                                  ssid->num_bssid_blacklist)) {
 856                         wpa_dbg(wpa_s, MSG_DEBUG,
 857                                 "   skip - BSSID blacklisted");
 858                         continue;
 859                 }
 860
 861                 /* if there is a whitelist, only accept those APs */
 862                 if (ssid->num_bssid_whitelist &&
 863                     !addr_in_list(bss->bssid, ssid->bssid_whitelist,
 864                                   ssid->num_bssid_whitelist)) {
 865                         wpa_dbg(wpa_s, MSG_DEBUG,
 866                                 "   skip - BSSID not in whitelist");
 867                         continue;
 868                 }
 869
 870                 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss))
 871                         continue;
 872
 873                 if (!osen && !wpa &&
 874                     !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) &&
 875                     !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) &&
 876                     !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) {
 877                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - non-WPA network "
 878                                 "not allowed");
 879                         continue;
 880                 }
 881
 882                 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) &&
 883                     has_wep_key(ssid)) {
 884                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - ignore WPA/WPA2 AP for WEP network block");
 885                         continue;
 886                 }
 887
 888                 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) {
 889                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - non-OSEN network "
 890                                 "not allowed");
 891                         continue;
 892                 }
 893
 894                 if (!wpa_supplicant_match_privacy(bss, ssid)) {
 895                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - privacy "
 896                                 "mismatch");
 897                         continue;
 898                 }
 899
 900                 if (!bss_is_ess(bss)) {
 901                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - not ESS network");
 902                         continue;
 903                 }
 904
 905                 if (!freq_allowed(ssid->freq_list, bss->freq)) {
 906                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - frequency not "
 907                                 "allowed");
 908                         continue;
 909                 }
 910
 911                 if (!rate_match(wpa_s, bss)) {
 912                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - rate sets do "
 913                                 "not match");
 914                         continue;
 915                 }
 916
 917 #ifdef CONFIG_P2P
 918                 if (ssid->p2p_group &&
 919                     !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) &&
 920                     !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) {
 921                         wpa_dbg(wpa_s, MSG_DEBUG, "   skip - no P2P IE seen");
 922                         continue;
 923                 }
 924
 925                 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) {
 926                         struct wpabuf *p2p_ie;
 927                         u8 dev_addr[ETH_ALEN];
 928
 929                         ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE);
 930                         if (ie == NULL) {
 931                                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - no P2P element");
 932                                 continue;
 933                         }
 934                         p2p_ie = wpa_bss_get_vendor_ie_multi(
 935                                 bss, P2P_IE_VENDOR_TYPE);
 936                         if (p2p_ie == NULL) {
 937                                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - could not fetch P2P element");
 938                                 continue;
 939                         }
 940
 941                         if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0
 942                             || os_memcmp(dev_addr, ssid->go_p2p_dev_addr,
 943                                          ETH_ALEN) != 0) {
 944                                 wpa_dbg(wpa_s, MSG_DEBUG, "   skip - no matching GO P2P Device Address in P2P element");
 945                                 wpabuf_free(p2p_ie);
 946                                 continue;
 947                         }
 948                         wpabuf_free(p2p_ie);
 949                 }
 950
 951                 /*
 952                  * TODO: skip the AP if its P2P IE has Group Formation
 953                  * bit set in the P2P Group Capability Bitmap and we
 954                  * are not in Group Formation with that device.
 955                  */
 956 #endif /* CONFIG_P2P */
 957
 958                 /* Matching configuration found */
 959                 return ssid;
 960         }
 961
 962         /* No matching configuration found */
 963         return NULL;
 964 }
 965
 966
 967 static struct wpa_bss *
 968 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s,
 969                           struct wpa_ssid *group,
 970                           struct wpa_ssid **selected_ssid,
 971                           int only_first_ssid)
 972 {
 973         unsigned int i;
 974
 975         if (only_first_ssid)
 976                 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d",
 977                         group->id);
 978         else
 979                 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d",
 980                         group->priority);
 981
 982         for (i = 0; i < wpa_s->last_scan_res_used; i++) {
 983                 struct wpa_bss *bss = wpa_s->last_scan_res[i];
 984                 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group,
 985                                                     only_first_ssid);
 986                 if (!*selected_ssid)
 987                         continue;
 988                 wpa_dbg(wpa_s, MSG_DEBUG, "   selected BSS " MACSTR
 989                         " ssid='%s'",
 990                         MAC2STR(bss->bssid),
 991                         wpa_ssid_txt(bss->ssid, bss->ssid_len));
 992                 return bss;
 993         }
 994
 995         return NULL;
 996 }
 997
 998
 999 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s,
1000                                              struct wpa_ssid **selected_ssid)
1001 {
1002         struct wpa_bss *selected = NULL;
1003         int prio;
1004         struct wpa_ssid *next_ssid = NULL;
1005
1006         if (wpa_s->last_scan_res == NULL ||
1007             wpa_s->last_scan_res_used == 0)
1008                 return NULL; /* no scan results from last update */
1009
1010         if (wpa_s->next_ssid) {
1011                 struct wpa_ssid *ssid;
1012
1013                 /* check that next_ssid is still valid */
1014                 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
1015                         if (ssid == wpa_s->next_ssid)
1016                                 break;
1017                 }
1018                 next_ssid = ssid;
1019                 wpa_s->next_ssid = NULL;
1020         }
1021
1022         while (selected == NULL) {
1023                 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1024                         if (next_ssid && next_ssid->priority ==
1025                             wpa_s->conf->pssid[prio]->priority) {
1026                                 selected = wpa_supplicant_select_bss(
1027                                         wpa_s, next_ssid, selected_ssid, 1);
1028                                 if (selected)
1029                                         break;
1030                         }
1031                         selected = wpa_supplicant_select_bss(
1032                                 wpa_s, wpa_s->conf->pssid[prio],
1033                                 selected_ssid, 0);
1034                         if (selected)
1035                                 break;
1036                 }
1037
1038                 if (selected == NULL && wpa_s->blacklist &&
1039                     !wpa_s->countermeasures) {
1040                         wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear "
1041                                 "blacklist and try again");
1042                         wpa_blacklist_clear(wpa_s);
1043                         wpa_s->blacklist_cleared++;
1044                 } else if (selected == NULL)
1045                         break;
1046         }
1047
1048         return selected;
1049 }
1050
1051
1052 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s,
1053                                         int timeout_sec, int timeout_usec)
1054 {
1055         if (!wpa_supplicant_enabled_networks(wpa_s)) {
1056                 /*
1057                  * No networks are enabled; short-circuit request so
1058                  * we don't wait timeout seconds before transitioning
1059                  * to INACTIVE state.
1060                  */
1061                 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request "
1062                         "since there are no enabled networks");
1063                 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE);
1064                 return;
1065         }
1066
1067         wpa_s->scan_for_connection = 1;
1068         wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec);
1069 }
1070
1071
1072 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
1073                            struct wpa_bss *selected,
1074                            struct wpa_ssid *ssid)
1075 {
1076         if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
1077                 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
1078                         "PBC session overlap");
1079 #ifdef CONFIG_P2P
1080                 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT ||
1081                     wpa_s->p2p_in_provisioning) {
1082                         eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb,
1083                                                wpa_s, NULL);
1084                         return -1;
1085                 }
1086 #endif /* CONFIG_P2P */
1087
1088 #ifdef CONFIG_WPS
1089                 wpas_wps_cancel(wpa_s);
1090 #endif /* CONFIG_WPS */
1091                 return -1;
1092         }
1093
1094         wpa_msg(wpa_s, MSG_DEBUG,
1095                 "Considering connect request: reassociate: %d  selected: "
1096                 MACSTR "  bssid: " MACSTR "  pending: " MACSTR
1097                 "  wpa_state: %s  ssid=%p  current_ssid=%p",
1098                 wpa_s->reassociate, MAC2STR(selected->bssid),
1099                 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
1100                 wpa_supplicant_state_txt(wpa_s->wpa_state),
1101                 ssid, wpa_s->current_ssid);
1102
1103         /*
1104          * Do not trigger new association unless the BSSID has changed or if
1105          * reassociation is requested. If we are in process of associating with
1106          * the selected BSSID, do not trigger new attempt.
1107          */
1108         if (wpa_s->reassociate ||
1109             (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
1110              ((wpa_s->wpa_state != WPA_ASSOCIATING &&
1111                wpa_s->wpa_state != WPA_AUTHENTICATING) ||
1112               (!is_zero_ether_addr(wpa_s->pending_bssid) &&
1113                os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
1114                0) ||
1115               (is_zero_ether_addr(wpa_s->pending_bssid) &&
1116                ssid != wpa_s->current_ssid)))) {
1117                 if (wpa_supplicant_scard_init(wpa_s, ssid)) {
1118                         wpa_supplicant_req_new_scan(wpa_s, 10, 0);
1119                         return 0;
1120                 }
1121                 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR,
1122                         MAC2STR(selected->bssid));
1123                 wpa_supplicant_associate(wpa_s, selected, ssid);
1124         } else {
1125                 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to "
1126                         "connect with the selected AP");
1127         }
1128
1129         return 0;
1130 }
1131
1132
1133 static struct wpa_ssid *
1134 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s)
1135 {
1136         int prio;
1137         struct wpa_ssid *ssid;
1138
1139         for (prio = 0; prio < wpa_s->conf->num_prio; prio++) {
1140                 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext)
1141                 {
1142                         if (wpas_network_disabled(wpa_s, ssid))
1143                                 continue;
1144                         if (ssid->mode == IEEE80211_MODE_IBSS ||
1145                             ssid->mode == IEEE80211_MODE_AP ||
1146                             ssid->mode == IEEE80211_MODE_MESH)
1147                                 return ssid;
1148                 }
1149         }
1150         return NULL;
1151 }
1152
1153
1154 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based
1155  * on BSS added and BSS changed events */
1156 static void wpa_supplicant_rsn_preauth_scan_results(
1157         struct wpa_supplicant *wpa_s)
1158 {
1159         struct wpa_bss *bss;
1160
1161         if (rsn_preauth_scan_results(wpa_s->wpa) < 0)
1162                 return;
1163
1164         dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
1165                 const u8 *ssid, *rsn;
1166
1167                 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID);
1168                 if (ssid == NULL)
1169                         continue;
1170
1171                 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
1172                 if (rsn == NULL)
1173                         continue;
1174
1175                 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn);
1176         }
1177
1178 }
1179
1180
1181 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s,
1182                                        struct wpa_bss *selected,
1183                                        struct wpa_ssid *ssid)
1184 {
1185         struct wpa_bss *current_bss = NULL;
1186         int min_diff;
1187
1188         if (wpa_s->reassociate)
1189                 return 1; /* explicit request to reassociate */
1190         if (wpa_s->wpa_state < WPA_ASSOCIATED)
1191                 return 1; /* we are not associated; continue */
1192         if (wpa_s->current_ssid == NULL)
1193                 return 1; /* unknown current SSID */
1194         if (wpa_s->current_ssid != ssid)
1195                 return 1; /* different network block */
1196
1197         if (wpas_driver_bss_selection(wpa_s))
1198                 return 0; /* Driver-based roaming */
1199
1200         if (wpa_s->current_ssid->ssid)
1201                 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid,
1202                                           wpa_s->current_ssid->ssid,
1203                                           wpa_s->current_ssid->ssid_len);
1204         if (!current_bss)
1205                 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid);
1206
1207         if (!current_bss)
1208                 return 1; /* current BSS not seen in scan results */
1209
1210         if (current_bss == selected)
1211                 return 0;
1212
1213         if (selected->last_update_idx > current_bss->last_update_idx)
1214                 return 1; /* current BSS not seen in the last scan */
1215
1216 #ifndef CONFIG_NO_ROAMING
1217         wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation");
1218         wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d",
1219                 MAC2STR(current_bss->bssid), current_bss->level);
1220         wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d",
1221                 MAC2STR(selected->bssid), selected->level);
1222
1223         if (wpa_s->current_ssid->bssid_set &&
1224             os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) ==
1225             0) {
1226                 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS "
1227                         "has preferred BSSID");
1228                 return 1;
1229         }
1230
1231         if (current_bss->level < 0 && current_bss->level > selected->level) {
1232                 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better "
1233                         "signal level");
1234                 return 0;
1235         }
1236
1237         min_diff = 2;
1238         if (current_bss->level < 0) {
1239                 if (current_bss->level < -85)
1240                         min_diff = 1;
1241                 else if (current_bss->level < -80)
1242                         min_diff = 2;
1243                 else if (current_bss->level < -75)
1244                         min_diff = 3;
1245                 else if (current_bss->level < -70)
1246                         min_diff = 4;
1247                 else
1248                         min_diff = 5;
1249         }
1250         if (abs(current_bss->level - selected->level) < min_diff) {
1251                 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference "
1252                         "in signal level");
1253                 return 0;
1254         }
1255
1256         return 1;
1257 #else /* CONFIG_NO_ROAMING */
1258         return 0;
1259 #endif /* CONFIG_NO_ROAMING */
1260 }
1261
1262
1263 /* Return != 0 if no scan results could be fetched or if scan results should not
1264  * be shared with other virtual interfaces. */
1265 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1266                                               union wpa_event_data *data,
1267                                               int own_request)
1268 {
1269         struct wpa_scan_results *scan_res = NULL;
1270         int ret = 0;
1271         int ap = 0;
1272 #ifndef CONFIG_NO_RANDOM_POOL
1273         size_t i, num;
1274 #endif /* CONFIG_NO_RANDOM_POOL */
1275
1276 #ifdef CONFIG_AP
1277         if (wpa_s->ap_iface)
1278                 ap = 1;
1279 #endif /* CONFIG_AP */
1280
1281         wpa_supplicant_notify_scanning(wpa_s, 0);
1282
1283         scan_res = wpa_supplicant_get_scan_results(wpa_s,
1284                                                    data ? &data->scan_info :
1285                                                    NULL, 1);
1286         if (scan_res == NULL) {
1287                 if (wpa_s->conf->ap_scan == 2 || ap ||
1288                     wpa_s->scan_res_handler == scan_only_handler)
1289                         return -1;
1290                 if (!own_request)
1291                         return -1;
1292                 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try "
1293                         "scanning again");
1294                 wpa_supplicant_req_new_scan(wpa_s, 1, 0);
1295                 ret = -1;
1296                 goto scan_work_done;
1297         }
1298
1299 #ifndef CONFIG_NO_RANDOM_POOL
1300         num = scan_res->num;
1301         if (num > 10)
1302                 num = 10;
1303         for (i = 0; i < num; i++) {
1304                 u8 buf[5];
1305                 struct wpa_scan_res *res = scan_res->res[i];
1306                 buf[0] = res->bssid[5];
1307                 buf[1] = res->qual & 0xff;
1308                 buf[2] = res->noise & 0xff;
1309                 buf[3] = res->level & 0xff;
1310                 buf[4] = res->tsf & 0xff;
1311                 random_add_randomness(buf, sizeof(buf));
1312         }
1313 #endif /* CONFIG_NO_RANDOM_POOL */
1314
1315         if (own_request && wpa_s->scan_res_handler &&
1316             (wpa_s->own_scan_running || !wpa_s->radio->external_scan_running)) {
1317                 void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
1318                                          struct wpa_scan_results *scan_res);
1319
1320                 scan_res_handler = wpa_s->scan_res_handler;
1321                 wpa_s->scan_res_handler = NULL;
1322                 scan_res_handler(wpa_s, scan_res);
1323                 ret = -2;
1324                 goto scan_work_done;
1325         }
1326
1327         if (ap) {
1328                 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode");
1329 #ifdef CONFIG_AP
1330                 if (wpa_s->ap_iface->scan_cb)
1331                         wpa_s->ap_iface->scan_cb(wpa_s->ap_iface);
1332 #endif /* CONFIG_AP */
1333                 goto scan_work_done;
1334         }
1335
1336         wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)",
1337                 wpa_s->own_scan_running, wpa_s->radio->external_scan_running);
1338         if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
1339             wpa_s->manual_scan_use_id && wpa_s->own_scan_running) {
1340                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u",
1341                              wpa_s->manual_scan_id);
1342                 wpa_s->manual_scan_use_id = 0;
1343         } else {
1344                 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS);
1345         }
1346         wpas_notify_scan_results(wpa_s);
1347
1348         wpas_notify_scan_done(wpa_s, 1);
1349
1350         if (!wpa_s->own_scan_running && wpa_s->radio->external_scan_running) {
1351                 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection");
1352                 wpa_scan_results_free(scan_res);
1353                 return 0;
1354         }
1355
1356         if (wnm_scan_process(wpa_s, 1) > 0)
1357                 goto scan_work_done;
1358
1359         if (sme_proc_obss_scan(wpa_s) > 0)
1360                 goto scan_work_done;
1361
1362         if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s)))
1363                 goto scan_work_done;
1364
1365         if (autoscan_notify_scan(wpa_s, scan_res))
1366                 goto scan_work_done;
1367
1368         if (wpa_s->disconnected) {
1369                 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
1370                 goto scan_work_done;
1371         }
1372
1373         if (!wpas_driver_bss_selection(wpa_s) &&
1374             bgscan_notify_scan(wpa_s, scan_res) == 1)
1375                 goto scan_work_done;
1376
1377         wpas_wps_update_ap_info(wpa_s, scan_res);
1378
1379         wpa_scan_results_free(scan_res);
1380
1381         if (wpa_s->scan_work) {
1382                 struct wpa_radio_work *work = wpa_s->scan_work;
1383                 wpa_s->scan_work = NULL;
1384                 radio_work_done(work);
1385         }
1386
1387         return wpas_select_network_from_last_scan(wpa_s, 1, own_request);
1388
1389 scan_work_done:
1390         wpa_scan_results_free(scan_res);
1391         if (wpa_s->scan_work) {
1392                 struct wpa_radio_work *work = wpa_s->scan_work;
1393                 wpa_s->scan_work = NULL;
1394                 radio_work_done(work);
1395         }
1396         return ret;
1397 }
1398
1399
1400 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s,
1401                                               int new_scan, int own_request)
1402 {
1403         struct wpa_bss *selected;
1404         struct wpa_ssid *ssid = NULL;
1405
1406         selected = wpa_supplicant_pick_network(wpa_s, &ssid);
1407
1408         if (selected) {
1409                 int skip;
1410                 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid);
1411                 if (skip) {
1412                         if (new_scan)
1413                                 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1414                         return 0;
1415                 }
1416
1417                 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) {
1418                         wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed");
1419                         return -1;
1420                 }
1421                 if (new_scan)
1422                         wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1423                 /*
1424                  * Do not notify other virtual radios of scan results since we do not
1425                  * want them to start other associations at the same time.
1426                  */
1427                 return 1;
1428         } else {
1429 #ifdef CONFIG_MESH
1430                 if (wpa_s->ifmsh) {
1431                         wpa_msg(wpa_s, MSG_INFO,
1432                                 "Avoiding join because we already joined a mesh group");
1433                         return 0;
1434                 }
1435 #endif /* CONFIG_MESH */
1436                 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found");
1437                 ssid = wpa_supplicant_pick_new_network(wpa_s);
1438                 if (ssid) {
1439                         wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network");
1440                         wpa_supplicant_associate(wpa_s, NULL, ssid);
1441                         if (new_scan)
1442                                 wpa_supplicant_rsn_preauth_scan_results(wpa_s);
1443                 } else if (own_request) {
1444                         /*
1445                          * No SSID found. If SCAN results are as a result of
1446                          * own scan request and not due to a scan request on
1447                          * another shared interface, try another scan.
1448                          */
1449                         int timeout_sec = wpa_s->scan_interval;
1450                         int timeout_usec = 0;
1451 #ifdef CONFIG_P2P
1452                         if (wpas_p2p_scan_no_go_seen(wpa_s) == 1)
1453                                 return 0;
1454
1455                         if (wpa_s->p2p_in_provisioning ||
1456                             wpa_s->show_group_started ||
1457                             wpa_s->p2p_in_invitation) {
1458                                 /*
1459                                  * Use shorter wait during P2P Provisioning
1460                                  * state and during P2P join-a-group operation
1461                                  * to speed up group formation.
1462                                  */
1463                                 timeout_sec = 0;
1464                                 timeout_usec = 250000;
1465                                 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1466                                                             timeout_usec);
1467                                 return 0;
1468                         }
1469 #endif /* CONFIG_P2P */
1470 #ifdef CONFIG_INTERWORKING
1471                         if (wpa_s->conf->auto_interworking &&
1472                             wpa_s->conf->interworking &&
1473                             wpa_s->conf->cred) {
1474                                 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: "
1475                                         "start ANQP fetch since no matching "
1476                                         "networks found");
1477                                 wpa_s->network_select = 1;
1478                                 wpa_s->auto_network_select = 1;
1479                                 interworking_start_fetch_anqp(wpa_s);
1480                                 return 1;
1481                         }
1482 #endif /* CONFIG_INTERWORKING */
1483 #ifdef CONFIG_WPS
1484                         if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) {
1485                                 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing");
1486                                 timeout_sec = 0;
1487                                 timeout_usec = 500000;
1488                                 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1489                                                             timeout_usec);
1490                                 return 0;
1491                         }
1492 #endif /* CONFIG_WPS */
1493                         if (wpa_supplicant_req_sched_scan(wpa_s))
1494                                 wpa_supplicant_req_new_scan(wpa_s, timeout_sec,
1495                                                             timeout_usec);
1496                 }
1497         }
1498         return 0;
1499 }
1500
1501
1502 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s,
1503                                               union wpa_event_data *data)
1504 {
1505         struct wpa_supplicant *ifs;
1506
1507         if (_wpa_supplicant_event_scan_results(wpa_s, data, 1) != 0) {
1508                 /*
1509                  * If no scan results could be fetched, then no need to
1510                  * notify those interfaces that did not actually request
1511                  * this scan. Similarly, if scan results started a new operation on this
1512                  * interface, do not notify other interfaces to avoid concurrent
1513                  * operations during a connection attempt.
1514                  */
1515                 return;
1516         }
1517
1518         /*
1519          * Check other interfaces to see if they share the same radio. If
1520          * so, they get updated with this same scan info.
1521          */
1522         dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
1523                          radio_list) {
1524                 if (ifs != wpa_s) {
1525                         wpa_printf(MSG_DEBUG, "%s: Updating scan results from "
1526                                    "sibling", ifs->ifname);
1527                         _wpa_supplicant_event_scan_results(ifs, data, 0);
1528                 }
1529         }
1530 }
1531
1532 #endif /* CONFIG_NO_SCAN_PROCESSING */
1533
1534
1535 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s)
1536 {
1537 #ifdef CONFIG_NO_SCAN_PROCESSING
1538         return -1;
1539 #else /* CONFIG_NO_SCAN_PROCESSING */
1540         struct os_reltime now;
1541
1542         if (wpa_s->last_scan_res_used <= 0)
1543                 return -1;
1544
1545         os_get_reltime(&now);
1546         if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) {
1547                 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results");
1548                 return -1;
1549         }
1550
1551         return wpas_select_network_from_last_scan(wpa_s, 0, 1);
1552 #endif /* CONFIG_NO_SCAN_PROCESSING */
1553 }
1554
1555 #ifdef CONFIG_WNM
1556
1557 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
1558 {
1559         struct wpa_supplicant *wpa_s = eloop_ctx;
1560
1561         if (wpa_s->wpa_state < WPA_ASSOCIATED)
1562                 return;
1563
1564         if (!wpa_s->no_keep_alive) {
1565                 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
1566                            MAC2STR(wpa_s->bssid));
1567                 /* TODO: could skip this if normal data traffic has been sent */
1568                 /* TODO: Consider using some more appropriate data frame for
1569                  * this */
1570                 if (wpa_s->l2)
1571                         l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
1572                                        (u8 *) "", 0);
1573         }
1574
1575 #ifdef CONFIG_SME
1576         if (wpa_s->sme.bss_max_idle_period) {
1577                 unsigned int msec;
1578                 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */
1579                 if (msec > 100)
1580                         msec -= 100;
1581                 eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1582                                        wnm_bss_keep_alive, wpa_s, NULL);
1583         }
1584 #endif /* CONFIG_SME */
1585 }
1586
1587
1588 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s,
1589                                    const u8 *ies, size_t ies_len)
1590 {
1591         struct ieee802_11_elems elems;
1592
1593         if (ies == NULL)
1594                 return;
1595
1596         if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1597                 return;
1598
1599 #ifdef CONFIG_SME
1600         if (elems.bss_max_idle_period) {
1601                 unsigned int msec;
1602                 wpa_s->sme.bss_max_idle_period =
1603                         WPA_GET_LE16(elems.bss_max_idle_period);
1604                 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 "
1605                            "TU)%s", wpa_s->sme.bss_max_idle_period,
1606                            (elems.bss_max_idle_period[2] & 0x01) ?
1607                            " (protected keep-live required)" : "");
1608                 if (wpa_s->sme.bss_max_idle_period == 0)
1609                         wpa_s->sme.bss_max_idle_period = 1;
1610                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) {
1611                         eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1612                          /* msec times 1000 */
1613                         msec = wpa_s->sme.bss_max_idle_period * 1024;
1614                         if (msec > 100)
1615                                 msec -= 100;
1616                         eloop_register_timeout(msec / 1000, msec % 1000 * 1000,
1617                                                wnm_bss_keep_alive, wpa_s,
1618                                                NULL);
1619                 }
1620         }
1621 #endif /* CONFIG_SME */
1622 }
1623
1624 #endif /* CONFIG_WNM */
1625
1626
1627 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s)
1628 {
1629 #ifdef CONFIG_WNM
1630         eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL);
1631 #endif /* CONFIG_WNM */
1632 }
1633
1634
1635 #ifdef CONFIG_INTERWORKING
1636
1637 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map,
1638                             size_t len)
1639 {
1640         int res;
1641
1642         wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len);
1643         res = wpa_drv_set_qos_map(wpa_s, qos_map, len);
1644         if (res) {
1645                 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver");
1646         }
1647
1648         return res;
1649 }
1650
1651
1652 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s,
1653                                             const u8 *ies, size_t ies_len)
1654 {
1655         struct ieee802_11_elems elems;
1656
1657         if (ies == NULL)
1658                 return;
1659
1660         if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed)
1661                 return;
1662
1663         if (elems.qos_map_set) {
1664                 wpas_qos_map_set(wpa_s, elems.qos_map_set,
1665                                  elems.qos_map_set_len);
1666         }
1667 }
1668
1669 #endif /* CONFIG_INTERWORKING */
1670
1671
1672 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s,
1673                                           union wpa_event_data *data)
1674 {
1675         int l, len, found = 0, wpa_found, rsn_found;
1676         const u8 *p;
1677 #ifdef CONFIG_IEEE80211R
1678         u8 bssid[ETH_ALEN];
1679 #endif /* CONFIG_IEEE80211R */
1680
1681         wpa_dbg(wpa_s, MSG_DEBUG, "Association info event");
1682         if (data->assoc_info.req_ies)
1683                 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies,
1684                             data->assoc_info.req_ies_len);
1685         if (data->assoc_info.resp_ies) {
1686                 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies,
1687                             data->assoc_info.resp_ies_len);
1688 #ifdef CONFIG_TDLS
1689                 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies,
1690                                         data->assoc_info.resp_ies_len);
1691 #endif /* CONFIG_TDLS */
1692 #ifdef CONFIG_WNM
1693                 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1694                                        data->assoc_info.resp_ies_len);
1695 #endif /* CONFIG_WNM */
1696 #ifdef CONFIG_INTERWORKING
1697                 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies,
1698                                                 data->assoc_info.resp_ies_len);
1699 #endif /* CONFIG_INTERWORKING */
1700         }
1701         if (data->assoc_info.beacon_ies)
1702                 wpa_hexdump(MSG_DEBUG, "beacon_ies",
1703                             data->assoc_info.beacon_ies,
1704                             data->assoc_info.beacon_ies_len);
1705         if (data->assoc_info.freq)
1706                 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz",
1707                         data->assoc_info.freq);
1708
1709         p = data->assoc_info.req_ies;
1710         l = data->assoc_info.req_ies_len;
1711
1712         /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */
1713         while (p && l >= 2) {
1714                 len = p[1] + 2;
1715                 if (len > l) {
1716                         wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1717                                     p, l);
1718                         break;
1719                 }
1720                 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1721                      (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) ||
1722                     (p[0] == WLAN_EID_RSN && p[1] >= 2)) {
1723                         if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len))
1724                                 break;
1725                         found = 1;
1726                         wpa_find_assoc_pmkid(wpa_s);
1727                         break;
1728                 }
1729                 l -= len;
1730                 p += len;
1731         }
1732         if (!found && data->assoc_info.req_ies)
1733                 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
1734
1735 #ifdef CONFIG_IEEE80211R
1736 #ifdef CONFIG_SME
1737         if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) {
1738                 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1739                     wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1740                                                  data->assoc_info.resp_ies,
1741                                                  data->assoc_info.resp_ies_len,
1742                                                  bssid) < 0) {
1743                         wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1744                                 "Reassociation Response failed");
1745                         wpa_supplicant_deauthenticate(
1746                                 wpa_s, WLAN_REASON_INVALID_IE);
1747                         return -1;
1748                 }
1749         }
1750
1751         p = data->assoc_info.resp_ies;
1752         l = data->assoc_info.resp_ies_len;
1753
1754 #ifdef CONFIG_WPS_STRICT
1755         if (p && wpa_s->current_ssid &&
1756             wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) {
1757                 struct wpabuf *wps;
1758                 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE);
1759                 if (wps == NULL) {
1760                         wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not "
1761                                 "include WPS IE in (Re)Association Response");
1762                         return -1;
1763                 }
1764
1765                 if (wps_validate_assoc_resp(wps) < 0) {
1766                         wpabuf_free(wps);
1767                         wpa_supplicant_deauthenticate(
1768                                 wpa_s, WLAN_REASON_INVALID_IE);
1769                         return -1;
1770                 }
1771                 wpabuf_free(wps);
1772         }
1773 #endif /* CONFIG_WPS_STRICT */
1774
1775         /* Go through the IEs and make a copy of the MDIE, if present. */
1776         while (p && l >= 2) {
1777                 len = p[1] + 2;
1778                 if (len > l) {
1779                         wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info",
1780                                     p, l);
1781                         break;
1782                 }
1783                 if (p[0] == WLAN_EID_MOBILITY_DOMAIN &&
1784                     p[1] >= MOBILITY_DOMAIN_ID_LEN) {
1785                         wpa_s->sme.ft_used = 1;
1786                         os_memcpy(wpa_s->sme.mobility_domain, p + 2,
1787                                   MOBILITY_DOMAIN_ID_LEN);
1788                         break;
1789                 }
1790                 l -= len;
1791                 p += len;
1792         }
1793 #endif /* CONFIG_SME */
1794
1795         /* Process FT when SME is in the driver */
1796         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) &&
1797             wpa_ft_is_completed(wpa_s->wpa)) {
1798                 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 ||
1799                     wpa_ft_validate_reassoc_resp(wpa_s->wpa,
1800                                                  data->assoc_info.resp_ies,
1801                                                  data->assoc_info.resp_ies_len,
1802                                                  bssid) < 0) {
1803                         wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of "
1804                                 "Reassociation Response failed");
1805                         wpa_supplicant_deauthenticate(
1806                                 wpa_s, WLAN_REASON_INVALID_IE);
1807                         return -1;
1808                 }
1809                 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done");
1810         }
1811
1812         wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies,
1813                              data->assoc_info.resp_ies_len);
1814 #endif /* CONFIG_IEEE80211R */
1815
1816         /* WPA/RSN IE from Beacon/ProbeResp */
1817         p = data->assoc_info.beacon_ies;
1818         l = data->assoc_info.beacon_ies_len;
1819
1820         /* Go through the IEs and make a copy of the WPA/RSN IEs, if present.
1821          */
1822         wpa_found = rsn_found = 0;
1823         while (p && l >= 2) {
1824                 len = p[1] + 2;
1825                 if (len > l) {
1826                         wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies",
1827                                     p, l);
1828                         break;
1829                 }
1830                 if (!wpa_found &&
1831                     p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 &&
1832                     os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) {
1833                         wpa_found = 1;
1834                         wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len);
1835                 }
1836
1837                 if (!rsn_found &&
1838                     p[0] == WLAN_EID_RSN && p[1] >= 2) {
1839                         rsn_found = 1;
1840                         wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len);
1841                 }
1842
1843                 l -= len;
1844                 p += len;
1845         }
1846
1847         if (!wpa_found && data->assoc_info.beacon_ies)
1848                 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0);
1849         if (!rsn_found && data->assoc_info.beacon_ies)
1850                 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0);
1851         if (wpa_found || rsn_found)
1852                 wpa_s->ap_ies_from_associnfo = 1;
1853
1854         if (wpa_s->assoc_freq && data->assoc_info.freq &&
1855             wpa_s->assoc_freq != data->assoc_info.freq) {
1856                 wpa_printf(MSG_DEBUG, "Operating frequency changed from "
1857                            "%u to %u MHz",
1858                            wpa_s->assoc_freq, data->assoc_info.freq);
1859                 wpa_supplicant_update_scan_results(wpa_s);
1860         }
1861
1862         wpa_s->assoc_freq = data->assoc_info.freq;
1863
1864         return 0;
1865 }
1866
1867
1868 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s)
1869 {
1870         const u8 *bss_wpa = NULL, *bss_rsn = NULL;
1871
1872         if (!wpa_s->current_bss || !wpa_s->current_ssid)
1873                 return -1;
1874
1875         if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt))
1876                 return 0;
1877
1878         bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss,
1879                                         WPA_IE_VENDOR_TYPE);
1880         bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN);
1881
1882         if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa,
1883                                  bss_wpa ? 2 + bss_wpa[1] : 0) ||
1884             wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn,
1885                                  bss_rsn ? 2 + bss_rsn[1] : 0))
1886                 return -1;
1887
1888         return 0;
1889 }
1890
1891
1892 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s,
1893                                        union wpa_event_data *data)
1894 {
1895         u8 bssid[ETH_ALEN];
1896         int ft_completed;
1897
1898 #ifdef CONFIG_AP
1899         if (wpa_s->ap_iface) {
1900                 if (!data)
1901                         return;
1902                 hostapd_notif_assoc(wpa_s->ap_iface->bss[0],
1903                                     data->assoc_info.addr,
1904                                     data->assoc_info.req_ies,
1905                                     data->assoc_info.req_ies_len,
1906                                     data->assoc_info.reassoc);
1907                 return;
1908         }
1909 #endif /* CONFIG_AP */
1910
1911         ft_completed = wpa_ft_is_completed(wpa_s->wpa);
1912         if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0)
1913                 return;
1914
1915         if (wpa_drv_get_bssid(wpa_s, bssid) < 0) {
1916                 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID");
1917                 wpa_supplicant_deauthenticate(
1918                         wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1919                 return;
1920         }
1921
1922         wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED);
1923         if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) {
1924                 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID="
1925                         MACSTR, MAC2STR(bssid));
1926                 random_add_randomness(bssid, ETH_ALEN);
1927                 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN);
1928                 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
1929                 wpas_notify_bssid_changed(wpa_s);
1930
1931                 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) {
1932                         wpa_clear_keys(wpa_s, bssid);
1933                 }
1934                 if (wpa_supplicant_select_config(wpa_s) < 0) {
1935                         wpa_supplicant_deauthenticate(
1936                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
1937                         return;
1938                 }
1939
1940                 if (wpa_s->conf->ap_scan == 1 &&
1941                     wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) {
1942                         if (wpa_supplicant_assoc_update_ie(wpa_s) < 0)
1943                                 wpa_msg(wpa_s, MSG_WARNING,
1944                                         "WPA/RSN IEs not updated");
1945                 }
1946         }
1947
1948 #ifdef CONFIG_SME
1949         os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN);
1950         wpa_s->sme.prev_bssid_set = 1;
1951         wpa_s->sme.last_unprot_disconnect.sec = 0;
1952 #endif /* CONFIG_SME */
1953
1954         wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid));
1955         if (wpa_s->current_ssid) {
1956                 /* When using scanning (ap_scan=1), SIM PC/SC interface can be
1957                  * initialized before association, but for other modes,
1958                  * initialize PC/SC here, if the current configuration needs
1959                  * smartcard or SIM/USIM. */
1960                 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid);
1961         }
1962         wpa_sm_notify_assoc(wpa_s->wpa, bssid);
1963         if (wpa_s->l2)
1964                 l2_packet_notify_auth_start(wpa_s->l2);
1965
1966         /*
1967          * Set portEnabled first to FALSE in order to get EAP state machine out
1968          * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE
1969          * state machine may transit to AUTHENTICATING state based on obsolete
1970          * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to
1971          * AUTHENTICATED without ever giving chance to EAP state machine to
1972          * reset the state.
1973          */
1974         if (!ft_completed) {
1975                 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE);
1976                 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
1977         }
1978         if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed)
1979                 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE);
1980         /* 802.1X::portControl = Auto */
1981         eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
1982         wpa_s->eapol_received = 0;
1983         if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
1984             wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE ||
1985             (wpa_s->current_ssid &&
1986              wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) {
1987                 if (wpa_s->current_ssid &&
1988                     wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE &&
1989                     (wpa_s->drv_flags &
1990                      WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
1991                         /*
1992                          * Set the key after having received joined-IBSS event
1993                          * from the driver.
1994                          */
1995                         wpa_supplicant_set_wpa_none_key(wpa_s,
1996                                                         wpa_s->current_ssid);
1997                 }
1998                 wpa_supplicant_cancel_auth_timeout(wpa_s);
1999                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2000         } else if (!ft_completed) {
2001                 /* Timeout for receiving the first EAPOL packet */
2002                 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0);
2003         }
2004         wpa_supplicant_cancel_scan(wpa_s);
2005
2006         if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2007             wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) {
2008                 /*
2009                  * We are done; the driver will take care of RSN 4-way
2010                  * handshake.
2011                  */
2012                 wpa_supplicant_cancel_auth_timeout(wpa_s);
2013                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2014                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2015                 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2016         } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) &&
2017                    wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) {
2018                 /*
2019                  * The driver will take care of RSN 4-way handshake, so we need
2020                  * to allow EAPOL supplicant to complete its work without
2021                  * waiting for WPA supplicant.
2022                  */
2023                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2024         } else if (ft_completed) {
2025                 /*
2026                  * FT protocol completed - make sure EAPOL state machine ends
2027                  * up in authenticated.
2028                  */
2029                 wpa_supplicant_cancel_auth_timeout(wpa_s);
2030                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2031                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2032                 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2033         }
2034
2035         wpa_s->last_eapol_matches_bssid = 0;
2036
2037         if (wpa_s->pending_eapol_rx) {
2038                 struct os_reltime now, age;
2039                 os_get_reltime(&now);
2040                 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age);
2041                 if (age.sec == 0 && age.usec < 100000 &&
2042                     os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) ==
2043                     0) {
2044                         wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL "
2045                                 "frame that was received just before "
2046                                 "association notification");
2047                         wpa_supplicant_rx_eapol(
2048                                 wpa_s, wpa_s->pending_eapol_rx_src,
2049                                 wpabuf_head(wpa_s->pending_eapol_rx),
2050                                 wpabuf_len(wpa_s->pending_eapol_rx));
2051                 }
2052                 wpabuf_free(wpa_s->pending_eapol_rx);
2053                 wpa_s->pending_eapol_rx = NULL;
2054         }
2055
2056         if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE ||
2057              wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
2058             wpa_s->current_ssid &&
2059             (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) {
2060                 /* Set static WEP keys again */
2061                 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid);
2062         }
2063
2064 #ifdef CONFIG_IBSS_RSN
2065         if (wpa_s->current_ssid &&
2066             wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
2067             wpa_s->key_mgmt != WPA_KEY_MGMT_NONE &&
2068             wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE &&
2069             wpa_s->ibss_rsn == NULL) {
2070                 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s);
2071                 if (!wpa_s->ibss_rsn) {
2072                         wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN");
2073                         wpa_supplicant_deauthenticate(
2074                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING);
2075                         return;
2076                 }
2077
2078                 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk);
2079         }
2080 #endif /* CONFIG_IBSS_RSN */
2081
2082         wpas_wps_notify_assoc(wpa_s, bssid);
2083
2084         if (data) {
2085                 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies,
2086                                     data->assoc_info.resp_ies_len,
2087                                     &data->assoc_info.wmm_params);
2088
2089                 if (wpa_s->reassoc_same_bss)
2090                         wmm_ac_restore_tspecs(wpa_s);
2091         }
2092 }
2093
2094
2095 static int disconnect_reason_recoverable(u16 reason_code)
2096 {
2097         return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY ||
2098                 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA ||
2099                 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA;
2100 }
2101
2102
2103 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s,
2104                                           u16 reason_code,
2105                                           int locally_generated)
2106 {
2107         const u8 *bssid;
2108
2109         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2110                 /*
2111                  * At least Host AP driver and a Prism3 card seemed to be
2112                  * generating streams of disconnected events when configuring
2113                  * IBSS for WPA-None. Ignore them for now.
2114                  */
2115                 return;
2116         }
2117
2118         bssid = wpa_s->bssid;
2119         if (is_zero_ether_addr(bssid))
2120                 bssid = wpa_s->pending_bssid;
2121
2122         if (!is_zero_ether_addr(bssid) ||
2123             wpa_s->wpa_state >= WPA_AUTHENTICATING) {
2124                 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR
2125                         " reason=%d%s",
2126                         MAC2STR(bssid), reason_code,
2127                         locally_generated ? " locally_generated=1" : "");
2128         }
2129 }
2130
2131
2132 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code,
2133                                  int locally_generated)
2134 {
2135         if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE ||
2136             !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt))
2137                 return 0; /* Not in 4-way handshake with PSK */
2138
2139         /*
2140          * It looks like connection was lost while trying to go through PSK
2141          * 4-way handshake. Filter out known disconnection cases that are caused
2142          * by something else than PSK mismatch to avoid confusing reports.
2143          */
2144
2145         if (locally_generated) {
2146                 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS)
2147                         return 0;
2148         }
2149
2150         return 1;
2151 }
2152
2153
2154 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s,
2155                                                  u16 reason_code,
2156                                                  int locally_generated)
2157 {
2158         const u8 *bssid;
2159         int authenticating;
2160         u8 prev_pending_bssid[ETH_ALEN];
2161         struct wpa_bss *fast_reconnect = NULL;
2162         struct wpa_ssid *fast_reconnect_ssid = NULL;
2163         struct wpa_ssid *last_ssid;
2164
2165         authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING;
2166         os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN);
2167
2168         if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) {
2169                 /*
2170                  * At least Host AP driver and a Prism3 card seemed to be
2171                  * generating streams of disconnected events when configuring
2172                  * IBSS for WPA-None. Ignore them for now.
2173                  */
2174                 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in "
2175                         "IBSS/WPA-None mode");
2176                 return;
2177         }
2178
2179         if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) {
2180                 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - "
2181                         "pre-shared key may be incorrect");
2182                 if (wpas_p2p_4way_hs_failed(wpa_s) > 0)
2183                         return; /* P2P group removed */
2184                 wpas_auth_failed(wpa_s, "WRONG_KEY");
2185         }
2186         if (!wpa_s->disconnected &&
2187             (!wpa_s->auto_reconnect_disabled ||
2188              wpa_s->key_mgmt == WPA_KEY_MGMT_WPS ||
2189              wpas_wps_searching(wpa_s))) {
2190                 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to "
2191                         "reconnect (wps=%d/%d wpa_state=%d)",
2192                         wpa_s->key_mgmt == WPA_KEY_MGMT_WPS,
2193                         wpas_wps_searching(wpa_s),
2194                         wpa_s->wpa_state);
2195                 if (wpa_s->wpa_state == WPA_COMPLETED &&
2196                     wpa_s->current_ssid &&
2197                     wpa_s->current_ssid->mode == WPAS_MODE_INFRA &&
2198                     !locally_generated &&
2199                     disconnect_reason_recoverable(reason_code)) {
2200                         /*
2201                          * It looks like the AP has dropped association with
2202                          * us, but could allow us to get back in. Try to
2203                          * reconnect to the same BSS without full scan to save
2204                          * time for some common cases.
2205                          */
2206                         fast_reconnect = wpa_s->current_bss;
2207                         fast_reconnect_ssid = wpa_s->current_ssid;
2208                 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING)
2209                         wpa_supplicant_req_scan(wpa_s, 0, 100000);
2210                 else
2211                         wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new "
2212                                 "immediate scan");
2213         } else {
2214                 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not "
2215                         "try to re-connect");
2216                 wpa_s->reassociate = 0;
2217                 wpa_s->disconnected = 1;
2218                 wpa_supplicant_cancel_sched_scan(wpa_s);
2219         }
2220         bssid = wpa_s->bssid;
2221         if (is_zero_ether_addr(bssid))
2222                 bssid = wpa_s->pending_bssid;
2223         if (wpa_s->wpa_state >= WPA_AUTHENTICATING)
2224                 wpas_connection_failed(wpa_s, bssid);
2225         wpa_sm_notify_disassoc(wpa_s->wpa);
2226         if (locally_generated)
2227                 wpa_s->disconnect_reason = -reason_code;
2228         else
2229                 wpa_s->disconnect_reason = reason_code;
2230         wpas_notify_disconnect_reason(wpa_s);
2231         if (wpa_supplicant_dynamic_keys(wpa_s)) {
2232                 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys");
2233                 wpa_clear_keys(wpa_s, wpa_s->bssid);
2234         }
2235         last_ssid = wpa_s->current_ssid;
2236         wpa_supplicant_mark_disassoc(wpa_s);
2237
2238         if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) {
2239                 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid);
2240                 wpa_s->current_ssid = last_ssid;
2241         }
2242
2243         if (fast_reconnect &&
2244             !wpas_network_disabled(wpa_s, fast_reconnect_ssid) &&
2245             !disallowed_bssid(wpa_s, fast_reconnect->bssid) &&
2246             !disallowed_ssid(wpa_s, fast_reconnect->ssid,
2247                              fast_reconnect->ssid_len) &&
2248             !wpas_temp_disabled(wpa_s, fast_reconnect_ssid)) {
2249 #ifndef CONFIG_NO_SCAN_PROCESSING
2250                 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS");
2251                 if (wpa_supplicant_connect(wpa_s, fast_reconnect,
2252                                            fast_reconnect_ssid) < 0) {
2253                         /* Recover through full scan */
2254                         wpa_supplicant_req_scan(wpa_s, 0, 100000);
2255                 }
2256 #endif /* CONFIG_NO_SCAN_PROCESSING */
2257         } else if (fast_reconnect) {
2258                 /*
2259                  * Could not reconnect to the same BSS due to network being
2260                  * disabled. Use a new scan to match the alternative behavior
2261                  * above, i.e., to continue automatic reconnection attempt in a
2262                  * way that enforces disabled network rules.
2263                  */
2264                 wpa_supplicant_req_scan(wpa_s, 0, 100000);
2265         }
2266 }
2267
2268
2269 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2270 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx)
2271 {
2272         struct wpa_supplicant *wpa_s = eloop_ctx;
2273
2274         if (!wpa_s->pending_mic_error_report)
2275                 return;
2276
2277         wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report");
2278         wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise);
2279         wpa_s->pending_mic_error_report = 0;
2280 }
2281 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2282
2283
2284 static void
2285 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s,
2286                                          union wpa_event_data *data)
2287 {
2288         int pairwise;
2289         struct os_reltime t;
2290
2291         wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected");
2292         pairwise = (data && data->michael_mic_failure.unicast);
2293         os_get_reltime(&t);
2294         if ((wpa_s->last_michael_mic_error.sec &&
2295              !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) ||
2296             wpa_s->pending_mic_error_report) {
2297                 if (wpa_s->pending_mic_error_report) {
2298                         /*
2299                          * Send the pending MIC error report immediately since
2300                          * we are going to start countermeasures and AP better
2301                          * do the same.
2302                          */
2303                         wpa_sm_key_request(wpa_s->wpa, 1,
2304                                            wpa_s->pending_mic_error_pairwise);
2305                 }
2306
2307                 /* Send the new MIC error report immediately since we are going
2308                  * to start countermeasures and AP better do the same.
2309                  */
2310                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2311
2312                 /* initialize countermeasures */
2313                 wpa_s->countermeasures = 1;
2314
2315                 wpa_blacklist_add(wpa_s, wpa_s->bssid);
2316
2317                 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started");
2318
2319                 /*
2320                  * Need to wait for completion of request frame. We do not get
2321                  * any callback for the message completion, so just wait a
2322                  * short while and hope for the best. */
2323                 os_sleep(0, 10000);
2324
2325                 wpa_drv_set_countermeasures(wpa_s, 1);
2326                 wpa_supplicant_deauthenticate(wpa_s,
2327                                               WLAN_REASON_MICHAEL_MIC_FAILURE);
2328                 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures,
2329                                      wpa_s, NULL);
2330                 eloop_register_timeout(60, 0,
2331                                        wpa_supplicant_stop_countermeasures,
2332                                        wpa_s, NULL);
2333                 /* TODO: mark the AP rejected for 60 second. STA is
2334                  * allowed to associate with another AP.. */
2335         } else {
2336 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT
2337                 if (wpa_s->mic_errors_seen) {
2338                         /*
2339                          * Reduce the effectiveness of Michael MIC error
2340                          * reports as a means for attacking against TKIP if
2341                          * more than one MIC failure is noticed with the same
2342                          * PTK. We delay the transmission of the reports by a
2343                          * random time between 0 and 60 seconds in order to
2344                          * force the attacker wait 60 seconds before getting
2345                          * the information on whether a frame resulted in a MIC
2346                          * failure.
2347                          */
2348                         u8 rval[4];
2349                         int sec;
2350
2351                         if (os_get_random(rval, sizeof(rval)) < 0)
2352                                 sec = os_random() % 60;
2353                         else
2354                                 sec = WPA_GET_BE32(rval) % 60;
2355                         wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error "
2356                                 "report %d seconds", sec);
2357                         wpa_s->pending_mic_error_report = 1;
2358                         wpa_s->pending_mic_error_pairwise = pairwise;
2359                         eloop_cancel_timeout(
2360                                 wpa_supplicant_delayed_mic_error_report,
2361                                 wpa_s, NULL);
2362                         eloop_register_timeout(
2363                                 sec, os_random() % 1000000,
2364                                 wpa_supplicant_delayed_mic_error_report,
2365                                 wpa_s, NULL);
2366                 } else {
2367                         wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2368                 }
2369 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2370                 wpa_sm_key_request(wpa_s->wpa, 1, pairwise);
2371 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */
2372         }
2373         wpa_s->last_michael_mic_error = t;
2374         wpa_s->mic_errors_seen++;
2375 }
2376
2377
2378 #ifdef CONFIG_TERMINATE_ONLASTIF
2379 static int any_interfaces(struct wpa_supplicant *head)
2380 {
2381         struct wpa_supplicant *wpa_s;
2382
2383         for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next)
2384                 if (!wpa_s->interface_removed)
2385                         return 1;
2386         return 0;
2387 }
2388 #endif /* CONFIG_TERMINATE_ONLASTIF */
2389
2390
2391 static void
2392 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s,
2393                                       union wpa_event_data *data)
2394 {
2395         if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0)
2396                 return;
2397
2398         switch (data->interface_status.ievent) {
2399         case EVENT_INTERFACE_ADDED:
2400                 if (!wpa_s->interface_removed)
2401                         break;
2402                 wpa_s->interface_removed = 0;
2403                 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added");
2404                 if (wpa_supplicant_driver_init(wpa_s) < 0) {
2405                         wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the "
2406                                 "driver after interface was added");
2407                 }
2408                 break;
2409         case EVENT_INTERFACE_REMOVED:
2410                 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed");
2411                 wpa_s->interface_removed = 1;
2412                 wpa_supplicant_mark_disassoc(wpa_s);
2413                 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
2414                 l2_packet_deinit(wpa_s->l2);
2415                 wpa_s->l2 = NULL;
2416 #ifdef CONFIG_TERMINATE_ONLASTIF
2417                 /* check if last interface */
2418                 if (!any_interfaces(wpa_s->global->ifaces))
2419                         eloop_terminate();
2420 #endif /* CONFIG_TERMINATE_ONLASTIF */
2421                 break;
2422         }
2423 }
2424
2425
2426 #ifdef CONFIG_PEERKEY
2427 static void
2428 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s,
2429                               union wpa_event_data *data)
2430 {
2431         if (data == NULL)
2432                 return;
2433         wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer);
2434 }
2435 #endif /* CONFIG_PEERKEY */
2436
2437
2438 #ifdef CONFIG_TDLS
2439 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s,
2440                                       union wpa_event_data *data)
2441 {
2442         if (data == NULL)
2443                 return;
2444         switch (data->tdls.oper) {
2445         case TDLS_REQUEST_SETUP:
2446                 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer);
2447                 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2448                         wpa_tdls_start(wpa_s->wpa, data->tdls.peer);
2449                 else
2450                         wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer);
2451                 break;
2452         case TDLS_REQUEST_TEARDOWN:
2453                 if (wpa_tdls_is_external_setup(wpa_s->wpa))
2454                         wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer,
2455                                                data->tdls.reason_code);
2456                 else
2457                         wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN,
2458                                           data->tdls.peer);
2459                 break;
2460         }
2461 }
2462 #endif /* CONFIG_TDLS */
2463
2464
2465 #ifdef CONFIG_WNM
2466 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s,
2467                                      union wpa_event_data *data)
2468 {
2469         if (data == NULL)
2470                 return;
2471         switch (data->wnm.oper) {
2472         case WNM_OPER_SLEEP:
2473                 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request "
2474                            "(action=%d, intval=%d)",
2475                            data->wnm.sleep_action, data->wnm.sleep_intval);
2476                 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action,
2477                                              data->wnm.sleep_intval, NULL);
2478                 break;
2479         }
2480 }
2481 #endif /* CONFIG_WNM */
2482
2483
2484 #ifdef CONFIG_IEEE80211R
2485 static void
2486 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s,
2487                                  union wpa_event_data *data)
2488 {
2489         if (data == NULL)
2490                 return;
2491
2492         if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies,
2493                                     data->ft_ies.ies_len,
2494                                     data->ft_ies.ft_action,
2495                                     data->ft_ies.target_ap,
2496                                     data->ft_ies.ric_ies,
2497                                     data->ft_ies.ric_ies_len) < 0) {
2498                 /* TODO: prevent MLME/driver from trying to associate? */
2499         }
2500 }
2501 #endif /* CONFIG_IEEE80211R */
2502
2503
2504 #ifdef CONFIG_IBSS_RSN
2505 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
2506                                                 union wpa_event_data *data)
2507 {
2508         struct wpa_ssid *ssid;
2509         if (wpa_s->wpa_state < WPA_ASSOCIATED)
2510                 return;
2511         if (data == NULL)
2512                 return;
2513         ssid = wpa_s->current_ssid;
2514         if (ssid == NULL)
2515                 return;
2516         if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2517                 return;
2518
2519         ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer);
2520 }
2521
2522
2523 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s,
2524                                            union wpa_event_data *data)
2525 {
2526         struct wpa_ssid *ssid = wpa_s->current_ssid;
2527
2528         if (ssid == NULL)
2529                 return;
2530
2531         /* check if the ssid is correctly configured as IBSS/RSN */
2532         if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt))
2533                 return;
2534
2535         ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame,
2536                              data->rx_mgmt.frame_len);
2537 }
2538 #endif /* CONFIG_IBSS_RSN */
2539
2540
2541 #ifdef CONFIG_IEEE80211R
2542 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
2543                          size_t len)
2544 {
2545         const u8 *sta_addr, *target_ap_addr;
2546         u16 status;
2547
2548         wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
2549         if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
2550                 return; /* only SME case supported for now */
2551         if (len < 1 + 2 * ETH_ALEN + 2)
2552                 return;
2553         if (data[0] != 2)
2554                 return; /* Only FT Action Response is supported for now */
2555         sta_addr = data + 1;
2556         target_ap_addr = data + 1 + ETH_ALEN;
2557         status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
2558         wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA "
2559                 MACSTR " TargetAP " MACSTR " status %u",
2560                 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
2561
2562         if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
2563                 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR
2564                         " in FT Action Response", MAC2STR(sta_addr));
2565                 return;
2566         }
2567
2568         if (status) {
2569                 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates "
2570                         "failure (status code %d)", status);
2571                 /* TODO: report error to FT code(?) */
2572                 return;
2573         }
2574
2575         if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
2576                                     len - (1 + 2 * ETH_ALEN + 2), 1,
2577                                     target_ap_addr, NULL, 0) < 0)
2578                 return;
2579
2580 #ifdef CONFIG_SME
2581         {
2582                 struct wpa_bss *bss;
2583                 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr);
2584                 if (bss)
2585                         wpa_s->sme.freq = bss->freq;
2586                 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT;
2587                 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr,
2588                               WLAN_AUTH_FT);
2589         }
2590 #endif /* CONFIG_SME */
2591 }
2592 #endif /* CONFIG_IEEE80211R */
2593
2594
2595 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s,
2596                                                struct unprot_deauth *e)
2597 {
2598 #ifdef CONFIG_IEEE80211W
2599         wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame "
2600                    "dropped: " MACSTR " -> " MACSTR
2601                    " (reason code %u)",
2602                    MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2603         sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2604 #endif /* CONFIG_IEEE80211W */
2605 }
2606
2607
2608 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s,
2609                                                  struct unprot_disassoc *e)
2610 {
2611 #ifdef CONFIG_IEEE80211W
2612         wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame "
2613                    "dropped: " MACSTR " -> " MACSTR
2614                    " (reason code %u)",
2615                    MAC2STR(e->sa), MAC2STR(e->da), e->reason_code);
2616         sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code);
2617 #endif /* CONFIG_IEEE80211W */
2618 }
2619
2620
2621 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr,
2622                                   u16 reason_code, int locally_generated,
2623                                   const u8 *ie, size_t ie_len, int deauth)
2624 {
2625 #ifdef CONFIG_AP
2626         if (wpa_s->ap_iface && addr) {
2627                 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr);
2628                 return;
2629         }
2630
2631         if (wpa_s->ap_iface) {
2632                 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode");
2633                 return;
2634         }
2635 #endif /* CONFIG_AP */
2636
2637         wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated);
2638
2639         if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED ||
2640               ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) ||
2641                 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) &&
2642                eapol_sm_failed(wpa_s->eapol))) &&
2643              !wpa_s->eap_expected_failure))
2644                 wpas_auth_failed(wpa_s, "AUTH_FAILED");
2645
2646 #ifdef CONFIG_P2P
2647         if (deauth && reason_code > 0) {
2648                 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len,
2649                                           locally_generated) > 0) {
2650                         /*
2651                          * The interface was removed, so cannot continue
2652                          * processing any additional operations after this.
2653                          */
2654                         return;
2655                 }
2656         }
2657 #endif /* CONFIG_P2P */
2658
2659         wpa_supplicant_event_disassoc_finish(wpa_s, reason_code,
2660                                              locally_generated);
2661 }
2662
2663
2664 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s,
2665                                 struct disassoc_info *info)
2666 {
2667         u16 reason_code = 0;
2668         int locally_generated = 0;
2669         const u8 *addr = NULL;
2670         const u8 *ie = NULL;
2671         size_t ie_len = 0;
2672
2673         wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification");
2674
2675         if (info) {
2676                 addr = info->addr;
2677                 ie = info->ie;
2678                 ie_len = info->ie_len;
2679                 reason_code = info->reason_code;
2680                 locally_generated = info->locally_generated;
2681                 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code,
2682                         locally_generated ? " (locally generated)" : "");
2683                 if (addr)
2684                         wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2685                                 MAC2STR(addr));
2686                 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)",
2687                             ie, ie_len);
2688         }
2689
2690 #ifdef CONFIG_AP
2691         if (wpa_s->ap_iface && info && info->addr) {
2692                 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr);
2693                 return;
2694         }
2695
2696         if (wpa_s->ap_iface) {
2697                 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode");
2698                 return;
2699         }
2700 #endif /* CONFIG_AP */
2701
2702 #ifdef CONFIG_P2P
2703         if (info) {
2704                 wpas_p2p_disassoc_notif(
2705                         wpa_s, info->addr, reason_code, info->ie, info->ie_len,
2706                         locally_generated);
2707         }
2708 #endif /* CONFIG_P2P */
2709
2710         if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
2711                 sme_event_disassoc(wpa_s, info);
2712
2713         wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated,
2714                               ie, ie_len, 0);
2715 }
2716
2717
2718 static void wpas_event_deauth(struct wpa_supplicant *wpa_s,
2719                               struct deauth_info *info)
2720 {
2721         u16 reason_code = 0;
2722         int locally_generated = 0;
2723         const u8 *addr = NULL;
2724         const u8 *ie = NULL;
2725         size_t ie_len = 0;
2726
2727         wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification");
2728
2729         if (info) {
2730                 addr = info->addr;
2731                 ie = info->ie;
2732                 ie_len = info->ie_len;
2733                 reason_code = info->reason_code;
2734                 locally_generated = info->locally_generated;
2735                 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s",
2736                         reason_code,
2737                         locally_generated ? " (locally generated)" : "");
2738                 if (addr) {
2739                         wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR,
2740                                 MAC2STR(addr));
2741                 }
2742                 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)",
2743                             ie, ie_len);
2744         }
2745
2746         wpa_reset_ft_completed(wpa_s->wpa);
2747
2748         wpas_event_disconnect(wpa_s, addr, reason_code,
2749                               locally_generated, ie, ie_len, 1);
2750 }
2751
2752
2753 static const char * reg_init_str(enum reg_change_initiator init)
2754 {
2755         switch (init) {
2756         case REGDOM_SET_BY_CORE:
2757                 return "CORE";
2758         case REGDOM_SET_BY_USER:
2759                 return "USER";
2760         case REGDOM_SET_BY_DRIVER:
2761                 return "DRIVER";
2762         case REGDOM_SET_BY_COUNTRY_IE:
2763                 return "COUNTRY_IE";
2764         case REGDOM_BEACON_HINT:
2765                 return "BEACON_HINT";
2766         }
2767         return "?";
2768 }
2769
2770
2771 static const char * reg_type_str(enum reg_type type)
2772 {
2773         switch (type) {
2774         case REGDOM_TYPE_UNKNOWN:
2775                 return "UNKNOWN";
2776         case REGDOM_TYPE_COUNTRY:
2777                 return "COUNTRY";
2778         case REGDOM_TYPE_WORLD:
2779                 return "WORLD";
2780         case REGDOM_TYPE_CUSTOM_WORLD:
2781                 return "CUSTOM_WORLD";
2782         case REGDOM_TYPE_INTERSECTION:
2783                 return "INTERSECTION";
2784         }
2785         return "?";
2786 }
2787
2788
2789 static void wpa_supplicant_update_channel_list(
2790         struct wpa_supplicant *wpa_s, struct channel_list_changed *info)
2791 {
2792         struct wpa_supplicant *ifs;
2793
2794         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s",
2795                 reg_init_str(info->initiator), reg_type_str(info->type),
2796                 info->alpha2[0] ? " alpha2=" : "",
2797                 info->alpha2[0] ? info->alpha2 : "");
2798
2799         if (wpa_s->drv_priv == NULL)
2800                 return; /* Ignore event during drv initialization */
2801
2802         free_hw_features(wpa_s);
2803         wpa_s->hw.modes = wpa_drv_get_hw_feature_data(
2804                 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags);
2805
2806         wpas_p2p_update_channel_list(wpa_s);
2807
2808         /*
2809          * Check other interfaces to see if they share the same radio. If
2810          * so, they get updated with this same hw mode info.
2811          */
2812         dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
2813                          radio_list) {
2814                 if (ifs != wpa_s) {
2815                         wpa_printf(MSG_DEBUG, "%s: Updating hw mode",
2816                                    ifs->ifname);
2817                         free_hw_features(ifs);
2818                         ifs->hw.modes = wpa_drv_get_hw_feature_data(
2819                                 ifs, &ifs->hw.num_modes, &ifs->hw.flags);
2820                 }
2821         }
2822 }
2823
2824
2825 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
2826                                       const u8 *frame, size_t len, int freq,
2827                                       int rssi)
2828 {
2829         const struct ieee80211_mgmt *mgmt;
2830         const u8 *payload;
2831         size_t plen;
2832         u8 category;
2833
2834         if (len < IEEE80211_HDRLEN + 2)
2835                 return;
2836
2837         mgmt = (const struct ieee80211_mgmt *) frame;
2838         payload = frame + IEEE80211_HDRLEN;
2839         category = *payload++;
2840         plen = len - IEEE80211_HDRLEN - 1;
2841
2842         wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR
2843                 " Category=%u DataLen=%d freq=%d MHz",
2844                 MAC2STR(mgmt->sa), category, (int) plen, freq);
2845
2846         if (category == WLAN_ACTION_WMM) {
2847                 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen);
2848                 return;
2849         }
2850
2851 #ifdef CONFIG_IEEE80211R
2852         if (category == WLAN_ACTION_FT) {
2853                 ft_rx_action(wpa_s, payload, plen);
2854                 return;
2855         }
2856 #endif /* CONFIG_IEEE80211R */
2857
2858 #ifdef CONFIG_IEEE80211W
2859 #ifdef CONFIG_SME
2860         if (category == WLAN_ACTION_SA_QUERY) {
2861                 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen);
2862                 return;
2863         }
2864 #endif /* CONFIG_SME */
2865 #endif /* CONFIG_IEEE80211W */
2866
2867 #ifdef CONFIG_WNM
2868         if (mgmt->u.action.category == WLAN_ACTION_WNM) {
2869                 ieee802_11_rx_wnm_action(wpa_s, mgmt, len);
2870                 return;
2871         }
2872 #endif /* CONFIG_WNM */
2873
2874 #ifdef CONFIG_GAS
2875         if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC ||
2876              mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) &&
2877             gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid,
2878                          mgmt->u.action.category,
2879                          payload, plen, freq) == 0)
2880                 return;
2881 #endif /* CONFIG_GAS */
2882
2883 #ifdef CONFIG_TDLS
2884         if (category == WLAN_ACTION_PUBLIC && plen >= 4 &&
2885             payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) {
2886                 wpa_dbg(wpa_s, MSG_DEBUG,
2887                         "TDLS: Received Discovery Response from " MACSTR,
2888                         MAC2STR(mgmt->sa));
2889                 return;
2890         }
2891 #endif /* CONFIG_TDLS */
2892
2893 #ifdef CONFIG_INTERWORKING
2894         if (category == WLAN_ACTION_QOS && plen >= 1 &&
2895             payload[0] == QOS_QOS_MAP_CONFIG) {
2896                 const u8 *pos = payload + 1;
2897                 size_t qlen = plen - 1;
2898                 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from "
2899                         MACSTR, MAC2STR(mgmt->sa));
2900                 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 &&
2901                     qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET &&
2902                     pos[1] <= qlen - 2 && pos[1] >= 16)
2903                         wpas_qos_map_set(wpa_s, pos + 2, pos[1]);
2904                 return;
2905         }
2906 #endif /* CONFIG_INTERWORKING */
2907
2908         if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
2909             payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) {
2910                 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1);
2911                 return;
2912         }
2913
2914         if (category == WLAN_ACTION_RADIO_MEASUREMENT &&
2915             payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) {
2916                 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa,
2917                                                          payload + 1, plen - 1,
2918                                                          rssi);
2919                 return;
2920         }
2921
2922         wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
2923                            category, payload, plen, freq);
2924         if (wpa_s->ifmsh)
2925                 mesh_mpm_action_rx(wpa_s, mgmt, len);
2926 }
2927
2928
2929 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s,
2930                                              union wpa_event_data *event)
2931 {
2932 #ifdef CONFIG_P2P
2933         struct wpa_supplicant *ifs;
2934 #endif /* CONFIG_P2P */
2935         struct wpa_freq_range_list *list;
2936         char *str = NULL;
2937
2938         list = &event->freq_range;
2939
2940         if (list->num)
2941                 str = freq_range_list_str(list);
2942         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s",
2943                 str ? str : "");
2944
2945 #ifdef CONFIG_P2P
2946         if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) {
2947                 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range",
2948                         __func__);
2949         } else {
2950                 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event");
2951                 wpas_p2p_update_channel_list(wpa_s);
2952         }
2953
2954         for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) {
2955                 int freq;
2956                 if (!ifs->current_ssid ||
2957                     !ifs->current_ssid->p2p_group ||
2958                     (ifs->current_ssid->mode != WPAS_MODE_P2P_GO &&
2959                      ifs->current_ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION))
2960                         continue;
2961
2962                 freq = ifs->current_ssid->frequency;
2963                 if (!freq_range_list_includes(list, freq)) {
2964                         wpa_dbg(ifs, MSG_DEBUG, "P2P GO operating frequency %d MHz in safe range",
2965                                 freq);
2966                         continue;
2967                 }
2968
2969                 wpa_dbg(ifs, MSG_DEBUG, "P2P GO operating in unsafe frequency %d MHz",
2970                         freq);
2971                 /* TODO: Consider using CSA or removing the group within
2972                  * wpa_supplicant */
2973                 wpa_msg(ifs, MSG_INFO, P2P_EVENT_REMOVE_AND_REFORM_GROUP);
2974         }
2975 #endif /* CONFIG_P2P */
2976
2977         os_free(str);
2978 }
2979
2980
2981 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s,
2982                                             union wpa_event_data *data)
2983 {
2984         wpa_dbg(wpa_s, MSG_DEBUG,
2985                 "Connection authorized by device, previous state %d",
2986                 wpa_s->wpa_state);
2987         if (wpa_s->wpa_state == WPA_ASSOCIATED) {
2988                 wpa_supplicant_cancel_auth_timeout(wpa_s);
2989                 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED);
2990                 eapol_sm_notify_portValid(wpa_s->eapol, TRUE);
2991                 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE);
2992         }
2993         wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr);
2994         wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck,
2995                                data->assoc_info.ptk_kck_len,
2996                                data->assoc_info.ptk_kek,
2997                                data->assoc_info.ptk_kek_len);
2998 }
2999
3000
3001 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
3002                           union wpa_event_data *data)
3003 {
3004         struct wpa_supplicant *wpa_s = ctx;
3005
3006         if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED &&
3007             event != EVENT_INTERFACE_ENABLED &&
3008             event != EVENT_INTERFACE_STATUS &&
3009             event != EVENT_SCHED_SCAN_STOPPED) {
3010                 wpa_dbg(wpa_s, MSG_DEBUG,
3011                         "Ignore event %s (%d) while interface is disabled",
3012                         event_to_string(event), event);
3013                 return;
3014         }
3015
3016 #ifndef CONFIG_NO_STDOUT_DEBUG
3017 {
3018         int level = MSG_DEBUG;
3019
3020         if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) {
3021                 const struct ieee80211_hdr *hdr;
3022                 u16 fc;
3023                 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
3024                 fc = le_to_host16(hdr->frame_control);
3025                 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
3026                     WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
3027                         level = MSG_EXCESSIVE;
3028         }
3029
3030         wpa_dbg(wpa_s, level, "Event %s (%d) received",
3031                 event_to_string(event), event);
3032 }
3033 #endif /* CONFIG_NO_STDOUT_DEBUG */
3034
3035         switch (event) {
3036         case EVENT_AUTH:
3037                 sme_event_auth(wpa_s, data);
3038                 break;
3039         case EVENT_ASSOC:
3040                 wpa_supplicant_event_assoc(wpa_s, data);
3041                 if (data && data->assoc_info.authorized)
3042                         wpa_supplicant_event_assoc_auth(wpa_s, data);
3043                 break;
3044         case EVENT_DISASSOC:
3045                 wpas_event_disassoc(wpa_s,
3046                                     data ? &data->disassoc_info : NULL);
3047                 break;
3048         case EVENT_DEAUTH:
3049                 wpas_event_deauth(wpa_s,
3050                                   data ? &data->deauth_info : NULL);
3051                 break;
3052         case EVENT_MICHAEL_MIC_FAILURE:
3053                 wpa_supplicant_event_michael_mic_failure(wpa_s, data);
3054                 break;
3055 #ifndef CONFIG_NO_SCAN_PROCESSING
3056         case EVENT_SCAN_STARTED:
3057                 os_get_reltime(&wpa_s->scan_start_time);
3058                 if (wpa_s->own_scan_requested) {
3059                         struct os_reltime diff;
3060
3061                         os_reltime_sub(&wpa_s->scan_start_time,
3062                                        &wpa_s->scan_trigger_time, &diff);
3063                         wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds",
3064                                 diff.sec, diff.usec);
3065                         wpa_s->own_scan_requested = 0;
3066                         wpa_s->own_scan_running = 1;
3067                         if (wpa_s->last_scan_req == MANUAL_SCAN_REQ &&
3068                             wpa_s->manual_scan_use_id) {
3069                                 wpa_msg_ctrl(wpa_s, MSG_INFO,
3070                                              WPA_EVENT_SCAN_STARTED "id=%u",
3071                                              wpa_s->manual_scan_id);
3072                         } else {
3073                                 wpa_msg_ctrl(wpa_s, MSG_INFO,
3074                                              WPA_EVENT_SCAN_STARTED);
3075                         }
3076                 } else {
3077                         wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan");
3078                         wpa_s->radio->external_scan_running = 1;
3079                         wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED);
3080                 }
3081                 break;
3082         case EVENT_SCAN_RESULTS:
3083                 if (os_reltime_initialized(&wpa_s->scan_start_time)) {
3084                         struct os_reltime now, diff;
3085                         os_get_reltime(&now);
3086                         os_reltime_sub(&now, &wpa_s->scan_start_time, &diff);
3087                         wpa_s->scan_start_time.sec = 0;
3088                         wpa_s->scan_start_time.usec = 0;
3089                         wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds",
3090                                 diff.sec, diff.usec);
3091                 }
3092                 wpa_supplicant_event_scan_results(wpa_s, data);
3093                 wpa_s->own_scan_running = 0;
3094                 wpa_s->radio->external_scan_running = 0;
3095                 radio_work_check_next(wpa_s);
3096                 break;
3097 #endif /* CONFIG_NO_SCAN_PROCESSING */
3098         case EVENT_ASSOCINFO:
3099                 wpa_supplicant_event_associnfo(wpa_s, data);
3100                 break;
3101         case EVENT_INTERFACE_STATUS:
3102                 wpa_supplicant_event_interface_status(wpa_s, data);
3103                 break;
3104         case EVENT_PMKID_CANDIDATE:
3105                 wpa_supplicant_event_pmkid_candidate(wpa_s, data);
3106                 break;
3107 #ifdef CONFIG_PEERKEY
3108         case EVENT_STKSTART:
3109                 wpa_supplicant_event_stkstart(wpa_s, data);
3110                 break;
3111 #endif /* CONFIG_PEERKEY */
3112 #ifdef CONFIG_TDLS
3113         case EVENT_TDLS:
3114                 wpa_supplicant_event_tdls(wpa_s, data);
3115                 break;
3116 #endif /* CONFIG_TDLS */
3117 #ifdef CONFIG_WNM
3118         case EVENT_WNM:
3119                 wpa_supplicant_event_wnm(wpa_s, data);
3120                 break;
3121 #endif /* CONFIG_WNM */
3122 #ifdef CONFIG_IEEE80211R
3123         case EVENT_FT_RESPONSE:
3124                 wpa_supplicant_event_ft_response(wpa_s, data);
3125                 break;
3126 #endif /* CONFIG_IEEE80211R */
3127 #ifdef CONFIG_IBSS_RSN
3128         case EVENT_IBSS_RSN_START:
3129                 wpa_supplicant_event_ibss_rsn_start(wpa_s, data);
3130                 break;
3131 #endif /* CONFIG_IBSS_RSN */
3132         case EVENT_ASSOC_REJECT:
3133                 if (data->assoc_reject.bssid)
3134                         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3135                                 "bssid=" MACSTR " status_code=%u",
3136                                 MAC2STR(data->assoc_reject.bssid),
3137                                 data->assoc_reject.status_code);
3138                 else
3139                         wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT
3140                                 "status_code=%u",
3141                                 data->assoc_reject.status_code);
3142                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3143                         sme_event_assoc_reject(wpa_s, data);
3144                 else {
3145                         const u8 *bssid = data->assoc_reject.bssid;
3146                         if (bssid == NULL || is_zero_ether_addr(bssid))
3147                                 bssid = wpa_s->pending_bssid;
3148                         wpas_connection_failed(wpa_s, bssid);
3149                         wpa_supplicant_mark_disassoc(wpa_s);
3150                 }
3151                 break;
3152         case EVENT_AUTH_TIMED_OUT:
3153                 /* It is possible to get this event from earlier connection */
3154                 if (wpa_s->current_ssid &&
3155                     wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3156                         wpa_dbg(wpa_s, MSG_DEBUG,
3157                                 "Ignore AUTH_TIMED_OUT in mesh configuration");
3158                         break;
3159                 }
3160                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3161                         sme_event_auth_timed_out(wpa_s, data);
3162                 break;
3163         case EVENT_ASSOC_TIMED_OUT:
3164                 /* It is possible to get this event from earlier connection */
3165                 if (wpa_s->current_ssid &&
3166                     wpa_s->current_ssid->mode == WPAS_MODE_MESH) {
3167                         wpa_dbg(wpa_s, MSG_DEBUG,
3168                                 "Ignore ASSOC_TIMED_OUT in mesh configuration");
3169                         break;
3170                 }
3171                 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)
3172                         sme_event_assoc_timed_out(wpa_s, data);
3173                 break;
3174         case EVENT_TX_STATUS:
3175                 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR
3176                         " type=%d stype=%d",
3177                         MAC2STR(data->tx_status.dst),
3178                         data->tx_status.type, data->tx_status.stype);
3179 #ifdef CONFIG_AP
3180                 if (wpa_s->ap_iface == NULL) {
3181 #ifdef CONFIG_OFFCHANNEL
3182                         if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3183                             data->tx_status.stype == WLAN_FC_STYPE_ACTION)
3184                                 offchannel_send_action_tx_status(
3185                                         wpa_s, data->tx_status.dst,
3186                                         data->tx_status.data,
3187                                         data->tx_status.data_len,
3188                                         data->tx_status.ack ?
3189                                         OFFCHANNEL_SEND_ACTION_SUCCESS :
3190                                         OFFCHANNEL_SEND_ACTION_NO_ACK);
3191 #endif /* CONFIG_OFFCHANNEL */
3192                         break;
3193                 }
3194 #endif /* CONFIG_AP */
3195 #ifdef CONFIG_OFFCHANNEL
3196                 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst="
3197                         MACSTR, MAC2STR(wpa_s->parent->pending_action_dst));
3198                 /*
3199                  * Catch TX status events for Action frames we sent via group
3200                  * interface in GO mode.
3201                  */
3202                 if (data->tx_status.type == WLAN_FC_TYPE_MGMT &&
3203                     data->tx_status.stype == WLAN_FC_STYPE_ACTION &&
3204                     os_memcmp(wpa_s->parent->pending_action_dst,
3205                               data->tx_status.dst, ETH_ALEN) == 0) {
3206                         offchannel_send_action_tx_status(
3207                                 wpa_s->parent, data->tx_status.dst,
3208                                 data->tx_status.data,
3209                                 data->tx_status.data_len,
3210                                 data->tx_status.ack ?
3211                                 OFFCHANNEL_SEND_ACTION_SUCCESS :
3212                                 OFFCHANNEL_SEND_ACTION_NO_ACK);
3213                         break;
3214                 }
3215 #endif /* CONFIG_OFFCHANNEL */
3216 #ifdef CONFIG_AP
3217                 switch (data->tx_status.type) {
3218                 case WLAN_FC_TYPE_MGMT:
3219                         ap_mgmt_tx_cb(wpa_s, data->tx_status.data,
3220                                       data->tx_status.data_len,
3221                                       data->tx_status.stype,
3222                                       data->tx_status.ack);
3223                         break;
3224                 case WLAN_FC_TYPE_DATA:
3225                         ap_tx_status(wpa_s, data->tx_status.dst,
3226                                      data->tx_status.data,
3227                                      data->tx_status.data_len,
3228                                      data->tx_status.ack);
3229                         break;
3230                 }
3231 #endif /* CONFIG_AP */
3232                 break;
3233 #ifdef CONFIG_AP
3234         case EVENT_EAPOL_TX_STATUS:
3235                 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst,
3236                                    data->eapol_tx_status.data,
3237                                    data->eapol_tx_status.data_len,
3238                                    data->eapol_tx_status.ack);
3239                 break;
3240         case EVENT_DRIVER_CLIENT_POLL_OK:
3241                 ap_client_poll_ok(wpa_s, data->client_poll.addr);
3242                 break;
3243         case EVENT_RX_FROM_UNKNOWN:
3244                 if (wpa_s->ap_iface == NULL)
3245                         break;
3246                 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr,
3247                                        data->rx_from_unknown.wds);
3248                 break;
3249         case EVENT_CH_SWITCH:
3250                 if (!data)
3251                         break;
3252                 if (!wpa_s->ap_iface) {
3253                         wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch "
3254                                 "event in non-AP mode");
3255                         break;
3256                 }
3257
3258                 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq,
3259                                   data->ch_switch.ht_enabled,
3260                                   data->ch_switch.ch_offset,
3261                                   data->ch_switch.ch_width,
3262                                   data->ch_switch.cf1,
3263                                   data->ch_switch.cf2);
3264                 break;
3265 #endif /* CONFIG_AP */
3266         case EVENT_RX_MGMT: {
3267                 u16 fc, stype;
3268                 const struct ieee80211_mgmt *mgmt;
3269
3270 #ifdef CONFIG_TESTING_OPTIONS
3271                 if (wpa_s->ext_mgmt_frame_handling) {
3272                         struct rx_mgmt *rx = &data->rx_mgmt;
3273                         size_t hex_len = 2 * rx->frame_len + 1;
3274                         char *hex = os_malloc(hex_len);
3275                         if (hex) {
3276                                 wpa_snprintf_hex(hex, hex_len,
3277                                                  rx->frame, rx->frame_len);
3278                                 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s",
3279                                         rx->freq, rx->datarate, rx->ssi_signal,
3280                                         hex);
3281                                 os_free(hex);
3282                         }
3283                         break;
3284                 }
3285 #endif /* CONFIG_TESTING_OPTIONS */
3286
3287                 mgmt = (const struct ieee80211_mgmt *)
3288                         data->rx_mgmt.frame;
3289                 fc = le_to_host16(mgmt->frame_control);
3290                 stype = WLAN_FC_GET_STYPE(fc);
3291
3292 #ifdef CONFIG_AP
3293                 if (wpa_s->ap_iface == NULL) {
3294 #endif /* CONFIG_AP */
3295 #ifdef CONFIG_P2P
3296                         if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3297                             data->rx_mgmt.frame_len > 24) {
3298                                 const u8 *src = mgmt->sa;
3299                                 const u8 *ie = mgmt->u.probe_req.variable;
3300                                 size_t ie_len = data->rx_mgmt.frame_len -
3301                                         (mgmt->u.probe_req.variable -
3302                                          data->rx_mgmt.frame);
3303                                 wpas_p2p_probe_req_rx(
3304                                         wpa_s, src, mgmt->da,
3305                                         mgmt->bssid, ie, ie_len,
3306                                         data->rx_mgmt.ssi_signal);
3307                                 break;
3308                         }
3309 #endif /* CONFIG_P2P */
3310 #ifdef CONFIG_IBSS_RSN
3311                         if (wpa_s->current_ssid &&
3312                             wpa_s->current_ssid->mode == WPAS_MODE_IBSS &&
3313                             stype == WLAN_FC_STYPE_AUTH &&
3314                             data->rx_mgmt.frame_len >= 30) {
3315                                 wpa_supplicant_event_ibss_auth(wpa_s, data);
3316                                 break;
3317                         }
3318 #endif /* CONFIG_IBSS_RSN */
3319
3320                         if (stype == WLAN_FC_STYPE_ACTION) {
3321                                 wpas_event_rx_mgmt_action(
3322                                         wpa_s, data->rx_mgmt.frame,
3323                                         data->rx_mgmt.frame_len,
3324                                         data->rx_mgmt.freq,
3325                                         data->rx_mgmt.ssi_signal);
3326                                 break;
3327                         }
3328
3329                         if (wpa_s->ifmsh) {
3330                                 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt);
3331                                 break;
3332                         }
3333
3334                         wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received "
3335                                 "management frame in non-AP mode");
3336                         break;
3337 #ifdef CONFIG_AP
3338                 }
3339
3340                 if (stype == WLAN_FC_STYPE_PROBE_REQ &&
3341                     data->rx_mgmt.frame_len > 24) {
3342                         const u8 *ie = mgmt->u.probe_req.variable;
3343                         size_t ie_len = data->rx_mgmt.frame_len -
3344                                 (mgmt->u.probe_req.variable -
3345                                  data->rx_mgmt.frame);
3346
3347                         wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da,
3348                                          mgmt->bssid, ie, ie_len,
3349                                          data->rx_mgmt.ssi_signal);
3350                 }
3351
3352                 ap_mgmt_rx(wpa_s, &data->rx_mgmt);
3353 #endif /* CONFIG_AP */
3354                 break;
3355                 }
3356         case EVENT_RX_PROBE_REQ:
3357                 if (data->rx_probe_req.sa == NULL ||
3358                     data->rx_probe_req.ie == NULL)
3359                         break;
3360 #ifdef CONFIG_AP
3361                 if (wpa_s->ap_iface) {
3362                         hostapd_probe_req_rx(wpa_s->ap_iface->bss[0],
3363                                              data->rx_probe_req.sa,
3364                                              data->rx_probe_req.da,
3365                                              data->rx_probe_req.bssid,
3366                                              data->rx_probe_req.ie,
3367                                              data->rx_probe_req.ie_len,
3368                                              data->rx_probe_req.ssi_signal);
3369                         break;
3370                 }
3371 #endif /* CONFIG_AP */
3372                 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa,
3373                                       data->rx_probe_req.da,
3374                                       data->rx_probe_req.bssid,
3375                                       data->rx_probe_req.ie,
3376                                       data->rx_probe_req.ie_len,
3377                                       data->rx_probe_req.ssi_signal);
3378                 break;
3379         case EVENT_REMAIN_ON_CHANNEL:
3380 #ifdef CONFIG_OFFCHANNEL
3381                 offchannel_remain_on_channel_cb(
3382                         wpa_s, data->remain_on_channel.freq,
3383                         data->remain_on_channel.duration);
3384 #endif /* CONFIG_OFFCHANNEL */
3385                 wpas_p2p_remain_on_channel_cb(
3386                         wpa_s, data->remain_on_channel.freq,
3387                         data->remain_on_channel.duration);
3388                 break;
3389         case EVENT_CANCEL_REMAIN_ON_CHANNEL:
3390 #ifdef CONFIG_OFFCHANNEL
3391                 offchannel_cancel_remain_on_channel_cb(
3392                         wpa_s, data->remain_on_channel.freq);
3393 #endif /* CONFIG_OFFCHANNEL */
3394                 wpas_p2p_cancel_remain_on_channel_cb(
3395                         wpa_s, data->remain_on_channel.freq);
3396                 break;
3397         case EVENT_EAPOL_RX:
3398                 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src,
3399                                         data->eapol_rx.data,
3400                                         data->eapol_rx.data_len);
3401                 break;
3402         case EVENT_SIGNAL_CHANGE:
3403                 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE
3404                         "above=%d signal=%d noise=%d txrate=%d",
3405                         data->signal_change.above_threshold,
3406                         data->signal_change.current_signal,
3407                         data->signal_change.current_noise,
3408                         data->signal_change.current_txrate);
3409                 bgscan_notify_signal_change(
3410                         wpa_s, data->signal_change.above_threshold,
3411                         data->signal_change.current_signal,
3412                         data->signal_change.current_noise,
3413                         data->signal_change.current_txrate);
3414                 break;
3415         case EVENT_INTERFACE_ENABLED:
3416                 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled");
3417                 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) {
3418                         wpa_supplicant_update_mac_addr(wpa_s);
3419                         if (wpa_s->p2p_mgmt) {
3420                                 wpa_supplicant_set_state(wpa_s,
3421                                                          WPA_DISCONNECTED);
3422                                 break;
3423                         }
3424
3425 #ifdef CONFIG_AP
3426                         if (!wpa_s->ap_iface) {
3427                                 wpa_supplicant_set_state(wpa_s,
3428                                                          WPA_DISCONNECTED);
3429                                 wpa_s->scan_req = NORMAL_SCAN_REQ;
3430                                 wpa_supplicant_req_scan(wpa_s, 0, 0);
3431                         } else
3432                                 wpa_supplicant_set_state(wpa_s,
3433                                                          WPA_COMPLETED);
3434 #else /* CONFIG_AP */
3435                         wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
3436                         wpa_supplicant_req_scan(wpa_s, 0, 0);
3437 #endif /* CONFIG_AP */
3438                 }
3439                 break;
3440         case EVENT_INTERFACE_DISABLED:
3441                 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled");
3442 #ifdef CONFIG_P2P
3443                 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO ||
3444                     (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group &&
3445                      wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) {
3446                         /*
3447                          * Mark interface disabled if this happens to end up not
3448                          * being removed as a separate P2P group interface.
3449                          */
3450                         wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3451                         /*
3452                          * The interface was externally disabled. Remove
3453                          * it assuming an external entity will start a
3454                          * new session if needed.
3455                          */
3456                         if (wpa_s->current_ssid &&
3457                             wpa_s->current_ssid->p2p_group)
3458                                 wpas_p2p_interface_unavailable(wpa_s);
3459                         else
3460                                 wpas_p2p_disconnect(wpa_s);
3461                         /*
3462                          * wpa_s instance may have been freed, so must not use
3463                          * it here anymore.
3464                          */
3465                         break;
3466                 }
3467                 if (wpa_s->p2p_scan_work && wpa_s->global->p2p &&
3468                     p2p_in_progress(wpa_s->global->p2p) > 1) {
3469                         /* This radio work will be cancelled, so clear P2P
3470                          * state as well.
3471                          */
3472                         p2p_stop_find(wpa_s->global->p2p);
3473                 }
3474 #endif /* CONFIG_P2P */
3475
3476                 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
3477                         /*
3478                          * Indicate disconnection to keep ctrl_iface events
3479                          * consistent.
3480                          */
3481                         wpa_supplicant_event_disassoc(
3482                                 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1);
3483                 }
3484                 wpa_supplicant_mark_disassoc(wpa_s);
3485                 radio_remove_works(wpa_s, NULL, 0);
3486
3487                 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED);
3488                 break;
3489         case EVENT_CHANNEL_LIST_CHANGED:
3490                 wpa_supplicant_update_channel_list(
3491                         wpa_s, &data->channel_list_changed);
3492                 break;
3493         case EVENT_INTERFACE_UNAVAILABLE:
3494                 wpas_p2p_interface_unavailable(wpa_s);
3495                 break;
3496         case EVENT_BEST_CHANNEL:
3497                 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received "
3498                         "(%d %d %d)",
3499                         data->best_chan.freq_24, data->best_chan.freq_5,
3500                         data->best_chan.freq_overall);
3501                 wpa_s->best_24_freq = data->best_chan.freq_24;
3502                 wpa_s->best_5_freq = data->best_chan.freq_5;
3503                 wpa_s->best_overall_freq = data->best_chan.freq_overall;
3504                 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24,
3505                                               data->best_chan.freq_5,
3506                                               data->best_chan.freq_overall);
3507                 break;
3508         case EVENT_UNPROT_DEAUTH:
3509                 wpa_supplicant_event_unprot_deauth(wpa_s,
3510                                                    &data->unprot_deauth);
3511                 break;
3512         case EVENT_UNPROT_DISASSOC:
3513                 wpa_supplicant_event_unprot_disassoc(wpa_s,
3514                                                      &data->unprot_disassoc);
3515                 break;
3516         case EVENT_STATION_LOW_ACK:
3517 #ifdef CONFIG_AP
3518                 if (wpa_s->ap_iface && data)
3519                         hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0],
3520                                                   data->low_ack.addr);
3521 #endif /* CONFIG_AP */
3522 #ifdef CONFIG_TDLS
3523                 if (data)
3524                         wpa_tdls_disable_unreachable_link(wpa_s->wpa,
3525                                                           data->low_ack.addr);
3526 #endif /* CONFIG_TDLS */
3527                 break;
3528         case EVENT_IBSS_PEER_LOST:
3529 #ifdef CONFIG_IBSS_RSN
3530                 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer);
3531 #endif /* CONFIG_IBSS_RSN */
3532                 break;
3533         case EVENT_DRIVER_GTK_REKEY:
3534                 if (os_memcmp(data->driver_gtk_rekey.bssid,
3535                               wpa_s->bssid, ETH_ALEN))
3536                         break;
3537                 if (!wpa_s->wpa)
3538                         break;
3539                 wpa_sm_update_replay_ctr(wpa_s->wpa,
3540                                          data->driver_gtk_rekey.replay_ctr);
3541                 break;
3542         case EVENT_SCHED_SCAN_STOPPED:
3543                 wpa_s->pno = 0;
3544                 wpa_s->sched_scanning = 0;
3545                 wpa_supplicant_notify_scanning(wpa_s, 0);
3546
3547                 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED)
3548                         break;
3549
3550                 /*
3551                  * Start a new sched scan to continue searching for more SSIDs
3552                  * either if timed out or PNO schedule scan is pending.
3553                  */
3554                 if (wpa_s->sched_scan_timed_out) {
3555                         wpa_supplicant_req_sched_scan(wpa_s);
3556                 } else if (wpa_s->pno_sched_pending) {
3557                         wpa_s->pno_sched_pending = 0;
3558                         wpas_start_pno(wpa_s);
3559                 }
3560
3561                 break;
3562         case EVENT_WPS_BUTTON_PUSHED:
3563 #ifdef CONFIG_WPS
3564                 wpas_wps_start_pbc(wpa_s, NULL, 0);
3565 #endif /* CONFIG_WPS */
3566                 break;
3567         case EVENT_AVOID_FREQUENCIES:
3568                 wpa_supplicant_notify_avoid_freq(wpa_s, data);
3569                 break;
3570         case EVENT_CONNECT_FAILED_REASON:
3571 #ifdef CONFIG_AP
3572                 if (!wpa_s->ap_iface || !data)
3573                         break;
3574                 hostapd_event_connect_failed_reason(
3575                         wpa_s->ap_iface->bss[0],
3576                         data->connect_failed_reason.addr,
3577                         data->connect_failed_reason.code);
3578 #endif /* CONFIG_AP */
3579                 break;
3580         case EVENT_NEW_PEER_CANDIDATE:
3581 #ifdef CONFIG_MESH
3582                 if (!wpa_s->ifmsh || !data)
3583                         break;
3584                 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer,
3585                                      data->mesh_peer.ies,
3586                                      data->mesh_peer.ie_len);
3587 #endif /* CONFIG_MESH */
3588                 break;
3589         default:
3590                 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event);
3591                 break;
3592         }
3593 }