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 "fst/fst.h" 27#include "wnm_sta.h" 28#include "notify.h" 29#include "common/ieee802_11_defs.h" 30#include "common/ieee802_11_common.h" 31#include "crypto/random.h" 32#include "blacklist.h" 33#include "wpas_glue.h" 34#include "wps_supplicant.h" 35#include "ibss_rsn.h" 36#include "sme.h" 37#include "gas_query.h" 38#include "p2p_supplicant.h" 39#include "bgscan.h" 40#include "autoscan.h" 41#include "ap.h" 42#include "bss.h" 43#include "scan.h" 44#include "offchannel.h" 45#include "interworking.h" 46#include "mesh.h" 47#include "mesh_mpm.h" 48#include "wmm_ac.h" 49 50 51#ifndef CONFIG_NO_SCAN_PROCESSING 52static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s, 53 int new_scan, int own_request); 54#endif /* CONFIG_NO_SCAN_PROCESSING */ 55 56 57static int wpas_temp_disabled(struct wpa_supplicant *wpa_s, 58 struct wpa_ssid *ssid) 59{ 60 struct os_reltime now; 61 62 if (ssid == NULL || ssid->disabled_until.sec == 0) 63 return 0; 64 65 os_get_reltime(&now); 66 if (ssid->disabled_until.sec > now.sec) 67 return ssid->disabled_until.sec - now.sec; 68 69 wpas_clear_temp_disabled(wpa_s, ssid, 0); 70 71 return 0; 72} 73 74 75#ifndef CONFIG_NO_SCAN_PROCESSING 76/** 77 * wpas_reenabled_network_time - Time until first network is re-enabled 78 * @wpa_s: Pointer to wpa_supplicant data 79 * Returns: If all enabled networks are temporarily disabled, returns the time 80 * (in sec) until the first network is re-enabled. Otherwise returns 0. 81 * 82 * This function is used in case all enabled networks are temporarily disabled, 83 * in which case it returns the time (in sec) that the first network will be 84 * re-enabled. The function assumes that at least one network is enabled. 85 */ 86static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s) 87{ 88 struct wpa_ssid *ssid; 89 int disabled_for, res = 0; 90 91#ifdef CONFIG_INTERWORKING 92 if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking && 93 wpa_s->conf->cred) 94 return 0; 95#endif /* CONFIG_INTERWORKING */ 96 97 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 98 if (ssid->disabled) 99 continue; 100 101 disabled_for = wpas_temp_disabled(wpa_s, ssid); 102 if (!disabled_for) 103 return 0; 104 105 if (!res || disabled_for < res) 106 res = disabled_for; 107 } 108 109 return res; 110} 111#endif /* CONFIG_NO_SCAN_PROCESSING */ 112 113 114void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx) 115{ 116 struct wpa_supplicant *wpa_s = eloop_ctx; 117 118 if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING) 119 return; 120 121 wpa_dbg(wpa_s, MSG_DEBUG, 122 "Try to associate due to network getting re-enabled"); 123 if (wpa_supplicant_fast_associate(wpa_s) != 1) { 124 wpa_supplicant_cancel_sched_scan(wpa_s); 125 wpa_supplicant_req_scan(wpa_s, 0, 0); 126 } 127} 128 129 130static struct wpa_bss * wpa_supplicant_get_new_bss( 131 struct wpa_supplicant *wpa_s, const u8 *bssid) 132{ 133 struct wpa_bss *bss = NULL; 134 struct wpa_ssid *ssid = wpa_s->current_ssid; 135 136 if (ssid->ssid_len > 0) 137 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len); 138 if (!bss) 139 bss = wpa_bss_get_bssid(wpa_s, bssid); 140 141 return bss; 142} 143 144 145static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s) 146{ 147 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid); 148 149 if (!bss) { 150 wpa_supplicant_update_scan_results(wpa_s); 151 152 /* Get the BSS from the new scan results */ 153 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid); 154 } 155 156 if (bss) 157 wpa_s->current_bss = bss; 158} 159 160 161static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s) 162{ 163 struct wpa_ssid *ssid, *old_ssid; 164 u8 drv_ssid[SSID_MAX_LEN]; 165 size_t drv_ssid_len; 166 int res; 167 168 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) { 169 wpa_supplicant_update_current_bss(wpa_s); 170 171 if (wpa_s->current_ssid->ssid_len == 0) 172 return 0; /* current profile still in use */ 173 res = wpa_drv_get_ssid(wpa_s, drv_ssid); 174 if (res < 0) { 175 wpa_msg(wpa_s, MSG_INFO, 176 "Failed to read SSID from driver"); 177 return 0; /* try to use current profile */ 178 } 179 drv_ssid_len = res; 180 181 if (drv_ssid_len == wpa_s->current_ssid->ssid_len && 182 os_memcmp(drv_ssid, wpa_s->current_ssid->ssid, 183 drv_ssid_len) == 0) 184 return 0; /* current profile still in use */ 185 186 wpa_msg(wpa_s, MSG_DEBUG, 187 "Driver-initiated BSS selection changed the SSID to %s", 188 wpa_ssid_txt(drv_ssid, drv_ssid_len)); 189 /* continue selecting a new network profile */ 190 } 191 192 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association " 193 "information"); 194 ssid = wpa_supplicant_get_ssid(wpa_s); 195 if (ssid == NULL) { 196 wpa_msg(wpa_s, MSG_INFO, 197 "No network configuration found for the current AP"); 198 return -1; 199 } 200 201 if (wpas_network_disabled(wpa_s, ssid)) { 202 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled"); 203 return -1; 204 } 205 206 if (disallowed_bssid(wpa_s, wpa_s->bssid) || 207 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) { 208 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed"); 209 return -1; 210 } 211 212 res = wpas_temp_disabled(wpa_s, ssid); 213 if (res > 0) { 214 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily " 215 "disabled for %d second(s)", res); 216 return -1; 217 } 218 219 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the " 220 "current AP"); 221 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { 222 u8 wpa_ie[80]; 223 size_t wpa_ie_len = sizeof(wpa_ie); 224 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, 225 wpa_ie, &wpa_ie_len) < 0) 226 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites"); 227 } else { 228 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); 229 } 230 231 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) 232 eapol_sm_invalidate_cached_session(wpa_s->eapol); 233 old_ssid = wpa_s->current_ssid; 234 wpa_s->current_ssid = ssid; 235 236 wpa_supplicant_update_current_bss(wpa_s); 237 238 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); 239 wpa_supplicant_initiate_eapol(wpa_s); 240 if (old_ssid != wpa_s->current_ssid) 241 wpas_notify_network_changed(wpa_s); 242 243 return 0; 244} 245 246 247void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx) 248{ 249 struct wpa_supplicant *wpa_s = eloop_ctx; 250 251 if (wpa_s->countermeasures) { 252 wpa_s->countermeasures = 0; 253 wpa_drv_set_countermeasures(wpa_s, 0); 254 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped"); 255 256 /* 257 * It is possible that the device is sched scanning, which means 258 * that a connection attempt will be done only when we receive 259 * scan results. However, in this case, it would be preferable 260 * to scan and connect immediately, so cancel the sched_scan and 261 * issue a regular scan flow. 262 */ 263 wpa_supplicant_cancel_sched_scan(wpa_s); 264 wpa_supplicant_req_scan(wpa_s, 0, 0); 265 } 266} 267 268 269void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s) 270{ 271 int bssid_changed; 272 273 wnm_bss_keep_alive_deinit(wpa_s); 274 275#ifdef CONFIG_IBSS_RSN 276 ibss_rsn_deinit(wpa_s->ibss_rsn); 277 wpa_s->ibss_rsn = NULL; 278#endif /* CONFIG_IBSS_RSN */ 279 280#ifdef CONFIG_AP 281 wpa_supplicant_ap_deinit(wpa_s); 282#endif /* CONFIG_AP */ 283 284 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 285 return; 286 287 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 288 bssid_changed = !is_zero_ether_addr(wpa_s->bssid); 289 os_memset(wpa_s->bssid, 0, ETH_ALEN); 290 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 291 sme_clear_on_disassoc(wpa_s); 292 wpa_s->current_bss = NULL; 293 wpa_s->assoc_freq = 0; 294 295 if (bssid_changed) 296 wpas_notify_bssid_changed(wpa_s); 297 298 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 299 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 300 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 301 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 302 wpa_s->ap_ies_from_associnfo = 0; 303 wpa_s->current_ssid = NULL; 304 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 305 wpa_s->key_mgmt = 0; 306 307 wpas_rrm_reset(wpa_s); 308 wpa_s->wnmsleep_used = 0; 309} 310 311 312static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s) 313{ 314 struct wpa_ie_data ie; 315 int pmksa_set = -1; 316 size_t i; 317 318 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 || 319 ie.pmkid == NULL) 320 return; 321 322 for (i = 0; i < ie.num_pmkid; i++) { 323 pmksa_set = pmksa_cache_set_current(wpa_s->wpa, 324 ie.pmkid + i * PMKID_LEN, 325 NULL, NULL, 0); 326 if (pmksa_set == 0) { 327 eapol_sm_notify_pmkid_attempt(wpa_s->eapol); 328 break; 329 } 330 } 331 332 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from " 333 "PMKSA cache", pmksa_set == 0 ? "" : "not "); 334} 335 336 337static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s, 338 union wpa_event_data *data) 339{ 340 if (data == NULL) { 341 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate " 342 "event"); 343 return; 344 } 345 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR 346 " index=%d preauth=%d", 347 MAC2STR(data->pmkid_candidate.bssid), 348 data->pmkid_candidate.index, 349 data->pmkid_candidate.preauth); 350 351 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid, 352 data->pmkid_candidate.index, 353 data->pmkid_candidate.preauth); 354} 355 356 357static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s) 358{ 359 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 360 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) 361 return 0; 362 363#ifdef IEEE8021X_EAPOL 364 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA && 365 wpa_s->current_ssid && 366 !(wpa_s->current_ssid->eapol_flags & 367 (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 368 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) { 369 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either 370 * plaintext or static WEP keys). */ 371 return 0; 372 } 373#endif /* IEEE8021X_EAPOL */ 374 375 return 1; 376} 377 378 379/** 380 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC 381 * @wpa_s: pointer to wpa_supplicant data 382 * @ssid: Configuration data for the network 383 * Returns: 0 on success, -1 on failure 384 * 385 * This function is called when starting authentication with a network that is 386 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA). 387 */ 388int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s, 389 struct wpa_ssid *ssid) 390{ 391#ifdef IEEE8021X_EAPOL 392#ifdef PCSC_FUNCS 393 int aka = 0, sim = 0; 394 395 if ((ssid != NULL && ssid->eap.pcsc == NULL) || 396 wpa_s->scard != NULL || wpa_s->conf->external_sim) 397 return 0; 398 399 if (ssid == NULL || ssid->eap.eap_methods == NULL) { 400 sim = 1; 401 aka = 1; 402 } else { 403 struct eap_method_type *eap = ssid->eap.eap_methods; 404 while (eap->vendor != EAP_VENDOR_IETF || 405 eap->method != EAP_TYPE_NONE) { 406 if (eap->vendor == EAP_VENDOR_IETF) { 407 if (eap->method == EAP_TYPE_SIM) 408 sim = 1; 409 else if (eap->method == EAP_TYPE_AKA || 410 eap->method == EAP_TYPE_AKA_PRIME) 411 aka = 1; 412 } 413 eap++; 414 } 415 } 416 417 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL) 418 sim = 0; 419 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL && 420 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) == 421 NULL) 422 aka = 0; 423 424 if (!sim && !aka) { 425 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to " 426 "use SIM, but neither EAP-SIM nor EAP-AKA are " 427 "enabled"); 428 return 0; 429 } 430 431 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM " 432 "(sim=%d aka=%d) - initialize PCSC", sim, aka); 433 434 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader); 435 if (wpa_s->scard == NULL) { 436 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM " 437 "(pcsc-lite)"); 438 return -1; 439 } 440 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); 441 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); 442#endif /* PCSC_FUNCS */ 443#endif /* IEEE8021X_EAPOL */ 444 445 return 0; 446} 447 448 449#ifndef CONFIG_NO_SCAN_PROCESSING 450 451static int has_wep_key(struct wpa_ssid *ssid) 452{ 453 int i; 454 455 for (i = 0; i < NUM_WEP_KEYS; i++) { 456 if (ssid->wep_key_len[i]) 457 return 1; 458 } 459 460 return 0; 461} 462 463 464static int wpa_supplicant_match_privacy(struct wpa_bss *bss, 465 struct wpa_ssid *ssid) 466{ 467 int privacy = 0; 468 469 if (ssid->mixed_cell) 470 return 1; 471 472#ifdef CONFIG_WPS 473 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) 474 return 1; 475#endif /* CONFIG_WPS */ 476 477 if (has_wep_key(ssid)) 478 privacy = 1; 479 480#ifdef IEEE8021X_EAPOL 481 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 482 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 483 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) 484 privacy = 1; 485#endif /* IEEE8021X_EAPOL */ 486 487 if (wpa_key_mgmt_wpa(ssid->key_mgmt)) 488 privacy = 1; 489 490 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) 491 privacy = 1; 492 493 if (bss->caps & IEEE80211_CAP_PRIVACY) 494 return privacy; 495 return !privacy; 496} 497 498 499static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s, 500 struct wpa_ssid *ssid, 501 struct wpa_bss *bss) 502{ 503 struct wpa_ie_data ie; 504 int proto_match = 0; 505 const u8 *rsn_ie, *wpa_ie; 506 int ret; 507 int wep_ok; 508 509 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss); 510 if (ret >= 0) 511 return ret; 512 513 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */ 514 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) && 515 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 516 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) || 517 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)); 518 519 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 520 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) { 521 proto_match++; 522 523 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) { 524 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse " 525 "failed"); 526 break; 527 } 528 529 if (wep_ok && 530 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 531 { 532 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 533 "in RSN IE"); 534 return 1; 535 } 536 537 if (!(ie.proto & ssid->proto)) { 538 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto " 539 "mismatch"); 540 break; 541 } 542 543 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 544 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK " 545 "cipher mismatch"); 546 break; 547 } 548 549 if (!(ie.group_cipher & ssid->group_cipher)) { 550 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK " 551 "cipher mismatch"); 552 break; 553 } 554 555 if (!(ie.key_mgmt & ssid->key_mgmt)) { 556 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt " 557 "mismatch"); 558 break; 559 } 560 561#ifdef CONFIG_IEEE80211W 562 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 563 wpas_get_ssid_pmf(wpa_s, ssid) == 564 MGMT_FRAME_PROTECTION_REQUIRED) { 565 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt " 566 "frame protection"); 567 break; 568 } 569#endif /* CONFIG_IEEE80211W */ 570 if ((ie.capabilities & WPA_CAPABILITY_MFPR) && 571 wpas_get_ssid_pmf(wpa_s, ssid) == 572 NO_MGMT_FRAME_PROTECTION) { 573 wpa_dbg(wpa_s, MSG_DEBUG, 574 " skip RSN IE - no mgmt frame protection enabled but AP requires it"); 575 break; 576 } 577#ifdef CONFIG_MBO 578 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 579 wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND) && 580 wpas_get_ssid_pmf(wpa_s, ssid) != 581 NO_MGMT_FRAME_PROTECTION) { 582 wpa_dbg(wpa_s, MSG_DEBUG, 583 " skip RSN IE - no mgmt frame protection enabled on MBO AP"); 584 break; 585 } 586#endif /* CONFIG_MBO */ 587 588 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE"); 589 return 1; 590 } 591 592 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 593 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) { 594 proto_match++; 595 596 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) { 597 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse " 598 "failed"); 599 break; 600 } 601 602 if (wep_ok && 603 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 604 { 605 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 606 "in WPA IE"); 607 return 1; 608 } 609 610 if (!(ie.proto & ssid->proto)) { 611 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto " 612 "mismatch"); 613 break; 614 } 615 616 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 617 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK " 618 "cipher mismatch"); 619 break; 620 } 621 622 if (!(ie.group_cipher & ssid->group_cipher)) { 623 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK " 624 "cipher mismatch"); 625 break; 626 } 627 628 if (!(ie.key_mgmt & ssid->key_mgmt)) { 629 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt " 630 "mismatch"); 631 break; 632 } 633 634 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE"); 635 return 1; 636 } 637 638 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie && 639 !rsn_ie) { 640 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X"); 641 return 1; 642 } 643 644 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) && 645 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) { 646 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match"); 647 return 0; 648 } 649 650 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && 651 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) { 652 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN"); 653 return 1; 654 } 655 656 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) { 657 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2"); 658 return 1; 659 } 660 661 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with " 662 "WPA/WPA2"); 663 664 return 0; 665} 666 667 668static int freq_allowed(int *freqs, int freq) 669{ 670 int i; 671 672 if (freqs == NULL) 673 return 1; 674 675 for (i = 0; freqs[i]; i++) 676 if (freqs[i] == freq) 677 return 1; 678 return 0; 679} 680 681 682static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss) 683{ 684 const struct hostapd_hw_modes *mode = NULL, *modes; 685 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES }; 686 const u8 *rate_ie; 687 int i, j, k; 688 689 if (bss->freq == 0) 690 return 1; /* Cannot do matching without knowing band */ 691 692 modes = wpa_s->hw.modes; 693 if (modes == NULL) { 694 /* 695 * The driver does not provide any additional information 696 * about the utilized hardware, so allow the connection attempt 697 * to continue. 698 */ 699 return 1; 700 } 701 702 for (i = 0; i < wpa_s->hw.num_modes; i++) { 703 for (j = 0; j < modes[i].num_channels; j++) { 704 int freq = modes[i].channels[j].freq; 705 if (freq == bss->freq) { 706 if (mode && 707 mode->mode == HOSTAPD_MODE_IEEE80211G) 708 break; /* do not allow 802.11b replace 709 * 802.11g */ 710 mode = &modes[i]; 711 break; 712 } 713 } 714 } 715 716 if (mode == NULL) 717 return 0; 718 719 for (i = 0; i < (int) sizeof(scan_ie); i++) { 720 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]); 721 if (rate_ie == NULL) 722 continue; 723 724 for (j = 2; j < rate_ie[1] + 2; j++) { 725 int flagged = !!(rate_ie[j] & 0x80); 726 int r = (rate_ie[j] & 0x7f) * 5; 727 728 /* 729 * IEEE Std 802.11n-2009 7.3.2.2: 730 * The new BSS Membership selector value is encoded 731 * like a legacy basic rate, but it is not a rate and 732 * only indicates if the BSS members are required to 733 * support the mandatory features of Clause 20 [HT PHY] 734 * in order to join the BSS. 735 */ 736 if (flagged && ((rate_ie[j] & 0x7f) == 737 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) { 738 if (!ht_supported(mode)) { 739 wpa_dbg(wpa_s, MSG_DEBUG, 740 " hardware does not support " 741 "HT PHY"); 742 return 0; 743 } 744 continue; 745 } 746 747 /* There's also a VHT selector for 802.11ac */ 748 if (flagged && ((rate_ie[j] & 0x7f) == 749 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) { 750 if (!vht_supported(mode)) { 751 wpa_dbg(wpa_s, MSG_DEBUG, 752 " hardware does not support " 753 "VHT PHY"); 754 return 0; 755 } 756 continue; 757 } 758 759 if (!flagged) 760 continue; 761 762 /* check for legacy basic rates */ 763 for (k = 0; k < mode->num_rates; k++) { 764 if (mode->rates[k] == r) 765 break; 766 } 767 if (k == mode->num_rates) { 768 /* 769 * IEEE Std 802.11-2007 7.3.2.2 demands that in 770 * order to join a BSS all required rates 771 * have to be supported by the hardware. 772 */ 773 wpa_dbg(wpa_s, MSG_DEBUG, 774 " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)", 775 r / 10, r % 10, 776 bss->freq, mode->mode, mode->num_rates); 777 return 0; 778 } 779 } 780 } 781 782 return 1; 783} 784 785 786/* 787 * Test whether BSS is in an ESS. 788 * This is done differently in DMG (60 GHz) and non-DMG bands 789 */ 790static int bss_is_ess(struct wpa_bss *bss) 791{ 792 if (bss_is_dmg(bss)) { 793 return (bss->caps & IEEE80211_CAP_DMG_MASK) == 794 IEEE80211_CAP_DMG_AP; 795 } 796 797 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) == 798 IEEE80211_CAP_ESS); 799} 800 801 802static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask) 803{ 804 size_t i; 805 806 for (i = 0; i < ETH_ALEN; i++) { 807 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i])) 808 return 0; 809 } 810 return 1; 811} 812 813 814static int addr_in_list(const u8 *addr, const u8 *list, size_t num) 815{ 816 size_t i; 817 818 for (i = 0; i < num; i++) { 819 const u8 *a = list + i * ETH_ALEN * 2; 820 const u8 *m = a + ETH_ALEN; 821 822 if (match_mac_mask(a, addr, m)) 823 return 1; 824 } 825 return 0; 826} 827 828 829struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s, 830 int i, struct wpa_bss *bss, 831 struct wpa_ssid *group, 832 int only_first_ssid) 833{ 834 u8 wpa_ie_len, rsn_ie_len; 835 int wpa; 836 struct wpa_blacklist *e; 837 const u8 *ie; 838 struct wpa_ssid *ssid; 839 int osen; 840#ifdef CONFIG_MBO 841 const u8 *assoc_disallow; 842#endif /* CONFIG_MBO */ 843 844 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 845 wpa_ie_len = ie ? ie[1] : 0; 846 847 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 848 rsn_ie_len = ie ? ie[1] : 0; 849 850 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE); 851 osen = ie != NULL; 852 853 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' " 854 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s", 855 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len), 856 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, bss->freq, 857 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "", 858 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) || 859 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ? 860 " p2p" : "", 861 osen ? " osen=1" : ""); 862 863 e = wpa_blacklist_get(wpa_s, bss->bssid); 864 if (e) { 865 int limit = 1; 866 if (wpa_supplicant_enabled_networks(wpa_s) == 1) { 867 /* 868 * When only a single network is enabled, we can 869 * trigger blacklisting on the first failure. This 870 * should not be done with multiple enabled networks to 871 * avoid getting forced to move into a worse ESS on 872 * single error if there are no other BSSes of the 873 * current ESS. 874 */ 875 limit = 0; 876 } 877 if (e->count > limit) { 878 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 879 "(count=%d limit=%d)", e->count, limit); 880 return NULL; 881 } 882 } 883 884 if (bss->ssid_len == 0) { 885 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known"); 886 return NULL; 887 } 888 889 if (disallowed_bssid(wpa_s, bss->bssid)) { 890 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed"); 891 return NULL; 892 } 893 894 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) { 895 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed"); 896 return NULL; 897 } 898 899 wpa = wpa_ie_len > 0 || rsn_ie_len > 0; 900 901 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) { 902 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0); 903 int res; 904 905 if (wpas_network_disabled(wpa_s, ssid)) { 906 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled"); 907 continue; 908 } 909 910 res = wpas_temp_disabled(wpa_s, ssid); 911 if (res > 0) { 912 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled " 913 "temporarily for %d second(s)", res); 914 continue; 915 } 916 917#ifdef CONFIG_WPS 918 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) { 919 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 920 "(WPS)"); 921 continue; 922 } 923 924 if (wpa && ssid->ssid_len == 0 && 925 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 926 check_ssid = 0; 927 928 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 929 /* Only allow wildcard SSID match if an AP 930 * advertises active WPS operation that matches 931 * with our mode. */ 932 check_ssid = 1; 933 if (ssid->ssid_len == 0 && 934 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 935 check_ssid = 0; 936 } 937#endif /* CONFIG_WPS */ 938 939 if (ssid->bssid_set && ssid->ssid_len == 0 && 940 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0) 941 check_ssid = 0; 942 943 if (check_ssid && 944 (bss->ssid_len != ssid->ssid_len || 945 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) { 946 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch"); 947 continue; 948 } 949 950 if (ssid->bssid_set && 951 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) { 952 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch"); 953 continue; 954 } 955 956 /* check blacklist */ 957 if (ssid->num_bssid_blacklist && 958 addr_in_list(bss->bssid, ssid->bssid_blacklist, 959 ssid->num_bssid_blacklist)) { 960 wpa_dbg(wpa_s, MSG_DEBUG, 961 " skip - BSSID blacklisted"); 962 continue; 963 } 964 965 /* if there is a whitelist, only accept those APs */ 966 if (ssid->num_bssid_whitelist && 967 !addr_in_list(bss->bssid, ssid->bssid_whitelist, 968 ssid->num_bssid_whitelist)) { 969 wpa_dbg(wpa_s, MSG_DEBUG, 970 " skip - BSSID not in whitelist"); 971 continue; 972 } 973 974 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss)) 975 continue; 976 977 if (!osen && !wpa && 978 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 979 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) && 980 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) { 981 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network " 982 "not allowed"); 983 continue; 984 } 985 986 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) && 987 has_wep_key(ssid)) { 988 wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block"); 989 continue; 990 } 991 992 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) { 993 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-OSEN network " 994 "not allowed"); 995 continue; 996 } 997 998 if (!wpa_supplicant_match_privacy(bss, ssid)) { 999 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy " 1000 "mismatch"); 1001 continue; 1002 } 1003 1004 if (!bss_is_ess(bss) && !bss_is_pbss(bss)) { 1005 wpa_dbg(wpa_s, MSG_DEBUG, " skip - neither ESS nor PBSS network"); 1006 continue; 1007 } 1008 1009 if (ssid->pbss != bss_is_pbss(bss)) { 1010 wpa_dbg(wpa_s, MSG_DEBUG, " skip - PBSS mismatch (ssid %d bss %d)", 1011 ssid->pbss, bss_is_pbss(bss)); 1012 continue; 1013 } 1014 1015 if (!freq_allowed(ssid->freq_list, bss->freq)) { 1016 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not " 1017 "allowed"); 1018 continue; 1019 } 1020 1021 if (!rate_match(wpa_s, bss)) { 1022 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do " 1023 "not match"); 1024 continue; 1025 } 1026 1027#ifdef CONFIG_P2P 1028 if (ssid->p2p_group && 1029 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) && 1030 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) { 1031 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen"); 1032 continue; 1033 } 1034 1035 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) { 1036 struct wpabuf *p2p_ie; 1037 u8 dev_addr[ETH_ALEN]; 1038 1039 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE); 1040 if (ie == NULL) { 1041 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element"); 1042 continue; 1043 } 1044 p2p_ie = wpa_bss_get_vendor_ie_multi( 1045 bss, P2P_IE_VENDOR_TYPE); 1046 if (p2p_ie == NULL) { 1047 wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element"); 1048 continue; 1049 } 1050 1051 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0 1052 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr, 1053 ETH_ALEN) != 0) { 1054 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element"); 1055 wpabuf_free(p2p_ie); 1056 continue; 1057 } 1058 wpabuf_free(p2p_ie); 1059 } 1060 1061 /* 1062 * TODO: skip the AP if its P2P IE has Group Formation 1063 * bit set in the P2P Group Capability Bitmap and we 1064 * are not in Group Formation with that device. 1065 */ 1066#endif /* CONFIG_P2P */ 1067 1068 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time)) 1069 { 1070 struct os_reltime diff; 1071 1072 os_reltime_sub(&wpa_s->scan_min_time, 1073 &bss->last_update, &diff); 1074 wpa_dbg(wpa_s, MSG_DEBUG, 1075 " skip - scan result not recent enough (%u.%06u seconds too old)", 1076 (unsigned int) diff.sec, 1077 (unsigned int) diff.usec); 1078 continue; 1079 } 1080#ifdef CONFIG_MBO 1081 assoc_disallow = wpas_mbo_get_bss_attr( 1082 bss, MBO_ATTR_ID_ASSOC_DISALLOW); 1083 if (assoc_disallow && assoc_disallow[1] >= 1) { 1084 wpa_dbg(wpa_s, MSG_DEBUG, 1085 " skip - MBO association disallowed (reason %u)", 1086 assoc_disallow[2]); 1087 continue; 1088 } 1089 1090 if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) { 1091 wpa_dbg(wpa_s, MSG_DEBUG, 1092 " skip - MBO retry delay has not passed yet"); 1093 continue; 1094 } 1095#endif /* CONFIG_MBO */ 1096 1097 /* Matching configuration found */ 1098 return ssid; 1099 } 1100 1101 /* No matching configuration found */ 1102 return NULL; 1103} 1104 1105 1106static struct wpa_bss * 1107wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, 1108 struct wpa_ssid *group, 1109 struct wpa_ssid **selected_ssid, 1110 int only_first_ssid) 1111{ 1112 unsigned int i; 1113 1114 if (only_first_ssid) 1115 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d", 1116 group->id); 1117 else 1118 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d", 1119 group->priority); 1120 1121 for (i = 0; i < wpa_s->last_scan_res_used; i++) { 1122 struct wpa_bss *bss = wpa_s->last_scan_res[i]; 1123 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group, 1124 only_first_ssid); 1125 if (!*selected_ssid) 1126 continue; 1127 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR 1128 " ssid='%s'", 1129 MAC2STR(bss->bssid), 1130 wpa_ssid_txt(bss->ssid, bss->ssid_len)); 1131 return bss; 1132 } 1133 1134 return NULL; 1135} 1136 1137 1138struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s, 1139 struct wpa_ssid **selected_ssid) 1140{ 1141 struct wpa_bss *selected = NULL; 1142 int prio; 1143 struct wpa_ssid *next_ssid = NULL; 1144 struct wpa_ssid *ssid; 1145 1146 if (wpa_s->last_scan_res == NULL || 1147 wpa_s->last_scan_res_used == 0) 1148 return NULL; /* no scan results from last update */ 1149 1150 if (wpa_s->next_ssid) { 1151 /* check that next_ssid is still valid */ 1152 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 1153 if (ssid == wpa_s->next_ssid) 1154 break; 1155 } 1156 next_ssid = ssid; 1157 wpa_s->next_ssid = NULL; 1158 } 1159 1160 while (selected == NULL) { 1161 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 1162 if (next_ssid && next_ssid->priority == 1163 wpa_s->conf->pssid[prio]->priority) { 1164 selected = wpa_supplicant_select_bss( 1165 wpa_s, next_ssid, selected_ssid, 1); 1166 if (selected) 1167 break; 1168 } 1169 selected = wpa_supplicant_select_bss( 1170 wpa_s, wpa_s->conf->pssid[prio], 1171 selected_ssid, 0); 1172 if (selected) 1173 break; 1174 } 1175 1176 if (selected == NULL && wpa_s->blacklist && 1177 !wpa_s->countermeasures) { 1178 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear " 1179 "blacklist and try again"); 1180 wpa_blacklist_clear(wpa_s); 1181 wpa_s->blacklist_cleared++; 1182 } else if (selected == NULL) 1183 break; 1184 } 1185 1186 ssid = *selected_ssid; 1187 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set && 1188 !ssid->passphrase && !ssid->ext_psk) { 1189 const char *field_name, *txt = NULL; 1190 1191 wpa_dbg(wpa_s, MSG_DEBUG, 1192 "PSK/passphrase not yet available for the selected network"); 1193 1194 wpas_notify_network_request(wpa_s, ssid, 1195 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL); 1196 1197 field_name = wpa_supplicant_ctrl_req_to_string( 1198 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt); 1199 if (field_name == NULL) 1200 return NULL; 1201 1202 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt); 1203 1204 selected = NULL; 1205 } 1206 1207 return selected; 1208} 1209 1210 1211static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s, 1212 int timeout_sec, int timeout_usec) 1213{ 1214 if (!wpa_supplicant_enabled_networks(wpa_s)) { 1215 /* 1216 * No networks are enabled; short-circuit request so 1217 * we don't wait timeout seconds before transitioning 1218 * to INACTIVE state. 1219 */ 1220 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request " 1221 "since there are no enabled networks"); 1222 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); 1223 return; 1224 } 1225 1226 wpa_s->scan_for_connection = 1; 1227 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec); 1228} 1229 1230 1231int wpa_supplicant_connect(struct wpa_supplicant *wpa_s, 1232 struct wpa_bss *selected, 1233 struct wpa_ssid *ssid) 1234{ 1235 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) { 1236 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP 1237 "PBC session overlap"); 1238 wpas_notify_wps_event_pbc_overlap(wpa_s); 1239#ifdef CONFIG_P2P 1240 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT || 1241 wpa_s->p2p_in_provisioning) { 1242 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb, 1243 wpa_s, NULL); 1244 return -1; 1245 } 1246#endif /* CONFIG_P2P */ 1247 1248#ifdef CONFIG_WPS 1249 wpas_wps_pbc_overlap(wpa_s); 1250 wpas_wps_cancel(wpa_s); 1251#endif /* CONFIG_WPS */ 1252 return -1; 1253 } 1254 1255 wpa_msg(wpa_s, MSG_DEBUG, 1256 "Considering connect request: reassociate: %d selected: " 1257 MACSTR " bssid: " MACSTR " pending: " MACSTR 1258 " wpa_state: %s ssid=%p current_ssid=%p", 1259 wpa_s->reassociate, MAC2STR(selected->bssid), 1260 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), 1261 wpa_supplicant_state_txt(wpa_s->wpa_state), 1262 ssid, wpa_s->current_ssid); 1263 1264 /* 1265 * Do not trigger new association unless the BSSID has changed or if 1266 * reassociation is requested. If we are in process of associating with 1267 * the selected BSSID, do not trigger new attempt. 1268 */ 1269 if (wpa_s->reassociate || 1270 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 && 1271 ((wpa_s->wpa_state != WPA_ASSOCIATING && 1272 wpa_s->wpa_state != WPA_AUTHENTICATING) || 1273 (!is_zero_ether_addr(wpa_s->pending_bssid) && 1274 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) != 1275 0) || 1276 (is_zero_ether_addr(wpa_s->pending_bssid) && 1277 ssid != wpa_s->current_ssid)))) { 1278 if (wpa_supplicant_scard_init(wpa_s, ssid)) { 1279 wpa_supplicant_req_new_scan(wpa_s, 10, 0); 1280 return 0; 1281 } 1282 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR, 1283 MAC2STR(selected->bssid)); 1284 wpa_supplicant_associate(wpa_s, selected, ssid); 1285 } else { 1286 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to " 1287 "connect with the selected AP"); 1288 } 1289 1290 return 0; 1291} 1292 1293 1294static struct wpa_ssid * 1295wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s) 1296{ 1297 int prio; 1298 struct wpa_ssid *ssid; 1299 1300 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 1301 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext) 1302 { 1303 if (wpas_network_disabled(wpa_s, ssid)) 1304 continue; 1305 if (ssid->mode == IEEE80211_MODE_IBSS || 1306 ssid->mode == IEEE80211_MODE_AP || 1307 ssid->mode == IEEE80211_MODE_MESH) 1308 return ssid; 1309 } 1310 } 1311 return NULL; 1312} 1313 1314 1315/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based 1316 * on BSS added and BSS changed events */ 1317static void wpa_supplicant_rsn_preauth_scan_results( 1318 struct wpa_supplicant *wpa_s) 1319{ 1320 struct wpa_bss *bss; 1321 1322 if (rsn_preauth_scan_results(wpa_s->wpa) < 0) 1323 return; 1324 1325 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1326 const u8 *ssid, *rsn; 1327 1328 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID); 1329 if (ssid == NULL) 1330 continue; 1331 1332 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); 1333 if (rsn == NULL) 1334 continue; 1335 1336 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn); 1337 } 1338 1339} 1340 1341 1342static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s, 1343 struct wpa_bss *selected, 1344 struct wpa_ssid *ssid) 1345{ 1346 struct wpa_bss *current_bss = NULL; 1347#ifndef CONFIG_NO_ROAMING 1348 int min_diff; 1349 int to_5ghz; 1350#endif /* CONFIG_NO_ROAMING */ 1351 1352 if (wpa_s->reassociate) 1353 return 1; /* explicit request to reassociate */ 1354 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1355 return 1; /* we are not associated; continue */ 1356 if (wpa_s->current_ssid == NULL) 1357 return 1; /* unknown current SSID */ 1358 if (wpa_s->current_ssid != ssid) 1359 return 1; /* different network block */ 1360 1361 if (wpas_driver_bss_selection(wpa_s)) 1362 return 0; /* Driver-based roaming */ 1363 1364 if (wpa_s->current_ssid->ssid) 1365 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid, 1366 wpa_s->current_ssid->ssid, 1367 wpa_s->current_ssid->ssid_len); 1368 if (!current_bss) 1369 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid); 1370 1371 if (!current_bss) 1372 return 1; /* current BSS not seen in scan results */ 1373 1374 if (current_bss == selected) 1375 return 0; 1376 1377 if (selected->last_update_idx > current_bss->last_update_idx) 1378 return 1; /* current BSS not seen in the last scan */ 1379 1380#ifndef CONFIG_NO_ROAMING 1381 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation"); 1382 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR 1383 " level=%d snr=%d est_throughput=%u", 1384 MAC2STR(current_bss->bssid), current_bss->level, 1385 current_bss->snr, current_bss->est_throughput); 1386 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR 1387 " level=%d snr=%d est_throughput=%u", 1388 MAC2STR(selected->bssid), selected->level, 1389 selected->snr, selected->est_throughput); 1390 1391 if (wpa_s->current_ssid->bssid_set && 1392 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) == 1393 0) { 1394 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS " 1395 "has preferred BSSID"); 1396 return 1; 1397 } 1398 1399 if (selected->est_throughput > current_bss->est_throughput + 5000) { 1400 wpa_dbg(wpa_s, MSG_DEBUG, 1401 "Allow reassociation - selected BSS has better estimated throughput"); 1402 return 1; 1403 } 1404 1405 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000; 1406 1407 if (current_bss->level < 0 && 1408 current_bss->level > selected->level + to_5ghz * 2) { 1409 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better " 1410 "signal level"); 1411 return 0; 1412 } 1413 1414 min_diff = 2; 1415 if (current_bss->level < 0) { 1416 if (current_bss->level < -85) 1417 min_diff = 1; 1418 else if (current_bss->level < -80) 1419 min_diff = 2; 1420 else if (current_bss->level < -75) 1421 min_diff = 3; 1422 else if (current_bss->level < -70) 1423 min_diff = 4; 1424 else 1425 min_diff = 5; 1426 } 1427 if (to_5ghz) { 1428 /* Make it easier to move to 5 GHz band */ 1429 if (min_diff > 2) 1430 min_diff -= 2; 1431 else 1432 min_diff = 0; 1433 } 1434 if (abs(current_bss->level - selected->level) < min_diff) { 1435 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference " 1436 "in signal level"); 1437 return 0; 1438 } 1439 1440 return 1; 1441#else /* CONFIG_NO_ROAMING */ 1442 return 0; 1443#endif /* CONFIG_NO_ROAMING */ 1444} 1445 1446 1447/* Return != 0 if no scan results could be fetched or if scan results should not 1448 * be shared with other virtual interfaces. */ 1449static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1450 union wpa_event_data *data, 1451 int own_request) 1452{ 1453 struct wpa_scan_results *scan_res = NULL; 1454 int ret = 0; 1455 int ap = 0; 1456#ifndef CONFIG_NO_RANDOM_POOL 1457 size_t i, num; 1458#endif /* CONFIG_NO_RANDOM_POOL */ 1459 1460#ifdef CONFIG_AP 1461 if (wpa_s->ap_iface) 1462 ap = 1; 1463#endif /* CONFIG_AP */ 1464 1465 wpa_supplicant_notify_scanning(wpa_s, 0); 1466 1467 scan_res = wpa_supplicant_get_scan_results(wpa_s, 1468 data ? &data->scan_info : 1469 NULL, 1); 1470 if (scan_res == NULL) { 1471 if (wpa_s->conf->ap_scan == 2 || ap || 1472 wpa_s->scan_res_handler == scan_only_handler) 1473 return -1; 1474 if (!own_request) 1475 return -1; 1476 if (data && data->scan_info.external_scan) 1477 return -1; 1478 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try " 1479 "scanning again"); 1480 wpa_supplicant_req_new_scan(wpa_s, 1, 0); 1481 ret = -1; 1482 goto scan_work_done; 1483 } 1484 1485#ifndef CONFIG_NO_RANDOM_POOL 1486 num = scan_res->num; 1487 if (num > 10) 1488 num = 10; 1489 for (i = 0; i < num; i++) { 1490 u8 buf[5]; 1491 struct wpa_scan_res *res = scan_res->res[i]; 1492 buf[0] = res->bssid[5]; 1493 buf[1] = res->qual & 0xff; 1494 buf[2] = res->noise & 0xff; 1495 buf[3] = res->level & 0xff; 1496 buf[4] = res->tsf & 0xff; 1497 random_add_randomness(buf, sizeof(buf)); 1498 } 1499#endif /* CONFIG_NO_RANDOM_POOL */ 1500 1501 if (own_request && wpa_s->scan_res_handler && 1502 !(data && data->scan_info.external_scan)) { 1503 void (*scan_res_handler)(struct wpa_supplicant *wpa_s, 1504 struct wpa_scan_results *scan_res); 1505 1506 scan_res_handler = wpa_s->scan_res_handler; 1507 wpa_s->scan_res_handler = NULL; 1508 scan_res_handler(wpa_s, scan_res); 1509 ret = -2; 1510 goto scan_work_done; 1511 } 1512 1513 if (ap) { 1514 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode"); 1515#ifdef CONFIG_AP 1516 if (wpa_s->ap_iface->scan_cb) 1517 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface); 1518#endif /* CONFIG_AP */ 1519 goto scan_work_done; 1520 } 1521 1522 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)", 1523 wpa_s->own_scan_running, 1524 data ? data->scan_info.external_scan : 0); 1525 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ && 1526 wpa_s->manual_scan_use_id && wpa_s->own_scan_running && 1527 own_request && !(data && data->scan_info.external_scan)) { 1528 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u", 1529 wpa_s->manual_scan_id); 1530 wpa_s->manual_scan_use_id = 0; 1531 } else { 1532 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); 1533 } 1534 wpas_notify_scan_results(wpa_s); 1535 1536 wpas_notify_scan_done(wpa_s, 1); 1537 1538 if (data && data->scan_info.external_scan) { 1539 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection"); 1540 wpa_scan_results_free(scan_res); 1541 return 0; 1542 } 1543 1544 if (wnm_scan_process(wpa_s, 1) > 0) 1545 goto scan_work_done; 1546 1547 if (sme_proc_obss_scan(wpa_s) > 0) 1548 goto scan_work_done; 1549 1550 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) 1551 goto scan_work_done; 1552 1553 if (autoscan_notify_scan(wpa_s, scan_res)) 1554 goto scan_work_done; 1555 1556 if (wpa_s->disconnected) { 1557 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 1558 goto scan_work_done; 1559 } 1560 1561 if (!wpas_driver_bss_selection(wpa_s) && 1562 bgscan_notify_scan(wpa_s, scan_res) == 1) 1563 goto scan_work_done; 1564 1565 wpas_wps_update_ap_info(wpa_s, scan_res); 1566 1567 if (wpa_s->wpa_state >= WPA_AUTHENTICATING && 1568 wpa_s->wpa_state < WPA_COMPLETED) 1569 goto scan_work_done; 1570 1571 wpa_scan_results_free(scan_res); 1572 1573 if (own_request && wpa_s->scan_work) { 1574 struct wpa_radio_work *work = wpa_s->scan_work; 1575 wpa_s->scan_work = NULL; 1576 radio_work_done(work); 1577 } 1578 1579 return wpas_select_network_from_last_scan(wpa_s, 1, own_request); 1580 1581scan_work_done: 1582 wpa_scan_results_free(scan_res); 1583 if (own_request && wpa_s->scan_work) { 1584 struct wpa_radio_work *work = wpa_s->scan_work; 1585 wpa_s->scan_work = NULL; 1586 radio_work_done(work); 1587 } 1588 return ret; 1589} 1590 1591 1592static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s, 1593 int new_scan, int own_request) 1594{ 1595 struct wpa_bss *selected; 1596 struct wpa_ssid *ssid = NULL; 1597 int time_to_reenable = wpas_reenabled_network_time(wpa_s); 1598 1599 if (time_to_reenable > 0) { 1600 wpa_dbg(wpa_s, MSG_DEBUG, 1601 "Postpone network selection by %d seconds since all networks are disabled", 1602 time_to_reenable); 1603 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL); 1604 eloop_register_timeout(time_to_reenable, 0, 1605 wpas_network_reenabled, wpa_s, NULL); 1606 return 0; 1607 } 1608 1609 if (wpa_s->p2p_mgmt) 1610 return 0; /* no normal connection on p2p_mgmt interface */ 1611 1612 selected = wpa_supplicant_pick_network(wpa_s, &ssid); 1613 1614 if (selected) { 1615 int skip; 1616 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid); 1617 if (skip) { 1618 if (new_scan) 1619 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1620 return 0; 1621 } 1622 1623 if (ssid != wpa_s->current_ssid && 1624 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 1625 wpa_s->own_disconnect_req = 1; 1626 wpa_supplicant_deauthenticate( 1627 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1628 } 1629 1630 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) { 1631 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed"); 1632 return -1; 1633 } 1634 if (new_scan) 1635 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1636 /* 1637 * Do not notify other virtual radios of scan results since we do not 1638 * want them to start other associations at the same time. 1639 */ 1640 return 1; 1641 } else { 1642#ifdef CONFIG_MESH 1643 if (wpa_s->ifmsh) { 1644 wpa_msg(wpa_s, MSG_INFO, 1645 "Avoiding join because we already joined a mesh group"); 1646 return 0; 1647 } 1648#endif /* CONFIG_MESH */ 1649 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found"); 1650 ssid = wpa_supplicant_pick_new_network(wpa_s); 1651 if (ssid) { 1652 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network"); 1653 wpa_supplicant_associate(wpa_s, NULL, ssid); 1654 if (new_scan) 1655 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1656 } else if (own_request) { 1657 /* 1658 * No SSID found. If SCAN results are as a result of 1659 * own scan request and not due to a scan request on 1660 * another shared interface, try another scan. 1661 */ 1662 int timeout_sec = wpa_s->scan_interval; 1663 int timeout_usec = 0; 1664#ifdef CONFIG_P2P 1665 int res; 1666 1667 res = wpas_p2p_scan_no_go_seen(wpa_s); 1668 if (res == 2) 1669 return 2; 1670 if (res == 1) 1671 return 0; 1672 1673 if (wpa_s->p2p_in_provisioning || 1674 wpa_s->show_group_started || 1675 wpa_s->p2p_in_invitation) { 1676 /* 1677 * Use shorter wait during P2P Provisioning 1678 * state and during P2P join-a-group operation 1679 * to speed up group formation. 1680 */ 1681 timeout_sec = 0; 1682 timeout_usec = 250000; 1683 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1684 timeout_usec); 1685 return 0; 1686 } 1687#endif /* CONFIG_P2P */ 1688#ifdef CONFIG_INTERWORKING 1689 if (wpa_s->conf->auto_interworking && 1690 wpa_s->conf->interworking && 1691 wpa_s->conf->cred) { 1692 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: " 1693 "start ANQP fetch since no matching " 1694 "networks found"); 1695 wpa_s->network_select = 1; 1696 wpa_s->auto_network_select = 1; 1697 interworking_start_fetch_anqp(wpa_s); 1698 return 1; 1699 } 1700#endif /* CONFIG_INTERWORKING */ 1701#ifdef CONFIG_WPS 1702 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) { 1703 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing"); 1704 timeout_sec = 0; 1705 timeout_usec = 500000; 1706 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1707 timeout_usec); 1708 return 0; 1709 } 1710#endif /* CONFIG_WPS */ 1711 if (wpa_supplicant_req_sched_scan(wpa_s)) 1712 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1713 timeout_usec); 1714 1715 wpa_msg_ctrl(wpa_s, MSG_INFO, 1716 WPA_EVENT_NETWORK_NOT_FOUND); 1717 } 1718 } 1719 return 0; 1720} 1721 1722 1723static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1724 union wpa_event_data *data) 1725{ 1726 struct wpa_supplicant *ifs; 1727 int res; 1728 1729 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1); 1730 if (res == 2) { 1731 /* 1732 * Interface may have been removed, so must not dereference 1733 * wpa_s after this. 1734 */ 1735 return 1; 1736 } 1737 if (res != 0) { 1738 /* 1739 * If no scan results could be fetched, then no need to 1740 * notify those interfaces that did not actually request 1741 * this scan. Similarly, if scan results started a new operation on this 1742 * interface, do not notify other interfaces to avoid concurrent 1743 * operations during a connection attempt. 1744 */ 1745 return 0; 1746 } 1747 1748 /* 1749 * Check other interfaces to see if they share the same radio. If 1750 * so, they get updated with this same scan info. 1751 */ 1752 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, 1753 radio_list) { 1754 if (ifs != wpa_s) { 1755 wpa_printf(MSG_DEBUG, "%s: Updating scan results from " 1756 "sibling", ifs->ifname); 1757 _wpa_supplicant_event_scan_results(ifs, data, 0); 1758 } 1759 } 1760 1761 return 0; 1762} 1763 1764#endif /* CONFIG_NO_SCAN_PROCESSING */ 1765 1766 1767int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s) 1768{ 1769#ifdef CONFIG_NO_SCAN_PROCESSING 1770 return -1; 1771#else /* CONFIG_NO_SCAN_PROCESSING */ 1772 struct os_reltime now; 1773 1774 if (wpa_s->last_scan_res_used == 0) 1775 return -1; 1776 1777 os_get_reltime(&now); 1778 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) { 1779 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results"); 1780 return -1; 1781 } 1782 1783 return wpas_select_network_from_last_scan(wpa_s, 0, 1); 1784#endif /* CONFIG_NO_SCAN_PROCESSING */ 1785} 1786 1787#ifdef CONFIG_WNM 1788 1789static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx) 1790{ 1791 struct wpa_supplicant *wpa_s = eloop_ctx; 1792 1793 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1794 return; 1795 1796 if (!wpa_s->no_keep_alive) { 1797 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR, 1798 MAC2STR(wpa_s->bssid)); 1799 /* TODO: could skip this if normal data traffic has been sent */ 1800 /* TODO: Consider using some more appropriate data frame for 1801 * this */ 1802 if (wpa_s->l2) 1803 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, 1804 (u8 *) "", 0); 1805 } 1806 1807#ifdef CONFIG_SME 1808 if (wpa_s->sme.bss_max_idle_period) { 1809 unsigned int msec; 1810 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */ 1811 if (msec > 100) 1812 msec -= 100; 1813 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1814 wnm_bss_keep_alive, wpa_s, NULL); 1815 } 1816#endif /* CONFIG_SME */ 1817} 1818 1819 1820static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s, 1821 const u8 *ies, size_t ies_len) 1822{ 1823 struct ieee802_11_elems elems; 1824 1825 if (ies == NULL) 1826 return; 1827 1828 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 1829 return; 1830 1831#ifdef CONFIG_SME 1832 if (elems.bss_max_idle_period) { 1833 unsigned int msec; 1834 wpa_s->sme.bss_max_idle_period = 1835 WPA_GET_LE16(elems.bss_max_idle_period); 1836 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 " 1837 "TU)%s", wpa_s->sme.bss_max_idle_period, 1838 (elems.bss_max_idle_period[2] & 0x01) ? 1839 " (protected keep-live required)" : ""); 1840 if (wpa_s->sme.bss_max_idle_period == 0) 1841 wpa_s->sme.bss_max_idle_period = 1; 1842 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) { 1843 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1844 /* msec times 1000 */ 1845 msec = wpa_s->sme.bss_max_idle_period * 1024; 1846 if (msec > 100) 1847 msec -= 100; 1848 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1849 wnm_bss_keep_alive, wpa_s, 1850 NULL); 1851 } 1852 } 1853#endif /* CONFIG_SME */ 1854} 1855 1856#endif /* CONFIG_WNM */ 1857 1858 1859void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s) 1860{ 1861#ifdef CONFIG_WNM 1862 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1863#endif /* CONFIG_WNM */ 1864} 1865 1866 1867#ifdef CONFIG_INTERWORKING 1868 1869static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map, 1870 size_t len) 1871{ 1872 int res; 1873 1874 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len); 1875 res = wpa_drv_set_qos_map(wpa_s, qos_map, len); 1876 if (res) { 1877 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver"); 1878 } 1879 1880 return res; 1881} 1882 1883 1884static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s, 1885 const u8 *ies, size_t ies_len) 1886{ 1887 struct ieee802_11_elems elems; 1888 1889 if (ies == NULL) 1890 return; 1891 1892 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 1893 return; 1894 1895 if (elems.qos_map_set) { 1896 wpas_qos_map_set(wpa_s, elems.qos_map_set, 1897 elems.qos_map_set_len); 1898 } 1899} 1900 1901#endif /* CONFIG_INTERWORKING */ 1902 1903 1904#ifdef CONFIG_FST 1905static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s, 1906 const u8 *ie, size_t ie_len) 1907{ 1908 struct mb_ies_info mb_ies; 1909 1910 if (!ie || !ie_len || !wpa_s->fst) 1911 return -ENOENT; 1912 1913 os_memset(&mb_ies, 0, sizeof(mb_ies)); 1914 1915 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) { 1916 size_t len; 1917 1918 len = 2 + ie[1]; 1919 if (len > ie_len) { 1920 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found", 1921 ie, ie_len); 1922 break; 1923 } 1924 1925 if (ie[0] == WLAN_EID_MULTI_BAND) { 1926 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found", 1927 (unsigned int) len); 1928 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2; 1929 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2; 1930 mb_ies.nof_ies++; 1931 } 1932 1933 ie_len -= len; 1934 ie += len; 1935 } 1936 1937 if (mb_ies.nof_ies > 0) { 1938 wpabuf_free(wpa_s->received_mb_ies); 1939 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies); 1940 return 0; 1941 } 1942 1943 return -ENOENT; 1944} 1945#endif /* CONFIG_FST */ 1946 1947 1948static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s, 1949 union wpa_event_data *data) 1950{ 1951 int l, len, found = 0, wpa_found, rsn_found; 1952 const u8 *p; 1953#ifdef CONFIG_IEEE80211R 1954 u8 bssid[ETH_ALEN]; 1955#endif /* CONFIG_IEEE80211R */ 1956 1957 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); 1958 if (data->assoc_info.req_ies) 1959 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, 1960 data->assoc_info.req_ies_len); 1961 if (data->assoc_info.resp_ies) { 1962 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, 1963 data->assoc_info.resp_ies_len); 1964#ifdef CONFIG_TDLS 1965 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies, 1966 data->assoc_info.resp_ies_len); 1967#endif /* CONFIG_TDLS */ 1968#ifdef CONFIG_WNM 1969 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 1970 data->assoc_info.resp_ies_len); 1971#endif /* CONFIG_WNM */ 1972#ifdef CONFIG_INTERWORKING 1973 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 1974 data->assoc_info.resp_ies_len); 1975#endif /* CONFIG_INTERWORKING */ 1976 } 1977 if (data->assoc_info.beacon_ies) 1978 wpa_hexdump(MSG_DEBUG, "beacon_ies", 1979 data->assoc_info.beacon_ies, 1980 data->assoc_info.beacon_ies_len); 1981 if (data->assoc_info.freq) 1982 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", 1983 data->assoc_info.freq); 1984 1985 p = data->assoc_info.req_ies; 1986 l = data->assoc_info.req_ies_len; 1987 1988 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ 1989 while (p && l >= 2) { 1990 len = p[1] + 2; 1991 if (len > l) { 1992 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1993 p, l); 1994 break; 1995 } 1996 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1997 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || 1998 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 && 1999 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) || 2000 (p[0] == WLAN_EID_RSN && p[1] >= 2)) { 2001 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) 2002 break; 2003 found = 1; 2004 wpa_find_assoc_pmkid(wpa_s); 2005 break; 2006 } 2007 l -= len; 2008 p += len; 2009 } 2010 if (!found && data->assoc_info.req_ies) 2011 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); 2012 2013#ifdef CONFIG_IEEE80211R 2014#ifdef CONFIG_SME 2015 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { 2016 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 2017 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 2018 data->assoc_info.resp_ies, 2019 data->assoc_info.resp_ies_len, 2020 bssid) < 0) { 2021 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 2022 "Reassociation Response failed"); 2023 wpa_supplicant_deauthenticate( 2024 wpa_s, WLAN_REASON_INVALID_IE); 2025 return -1; 2026 } 2027 } 2028 2029 p = data->assoc_info.resp_ies; 2030 l = data->assoc_info.resp_ies_len; 2031 2032#ifdef CONFIG_WPS_STRICT 2033 if (p && wpa_s->current_ssid && 2034 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { 2035 struct wpabuf *wps; 2036 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); 2037 if (wps == NULL) { 2038 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " 2039 "include WPS IE in (Re)Association Response"); 2040 return -1; 2041 } 2042 2043 if (wps_validate_assoc_resp(wps) < 0) { 2044 wpabuf_free(wps); 2045 wpa_supplicant_deauthenticate( 2046 wpa_s, WLAN_REASON_INVALID_IE); 2047 return -1; 2048 } 2049 wpabuf_free(wps); 2050 } 2051#endif /* CONFIG_WPS_STRICT */ 2052 2053 /* Go through the IEs and make a copy of the MDIE, if present. */ 2054 while (p && l >= 2) { 2055 len = p[1] + 2; 2056 if (len > l) { 2057 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 2058 p, l); 2059 break; 2060 } 2061 if (p[0] == WLAN_EID_MOBILITY_DOMAIN && 2062 p[1] >= MOBILITY_DOMAIN_ID_LEN) { 2063 wpa_s->sme.ft_used = 1; 2064 os_memcpy(wpa_s->sme.mobility_domain, p + 2, 2065 MOBILITY_DOMAIN_ID_LEN); 2066 break; 2067 } 2068 l -= len; 2069 p += len; 2070 } 2071#endif /* CONFIG_SME */ 2072 2073 /* Process FT when SME is in the driver */ 2074 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 2075 wpa_ft_is_completed(wpa_s->wpa)) { 2076 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 2077 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 2078 data->assoc_info.resp_ies, 2079 data->assoc_info.resp_ies_len, 2080 bssid) < 0) { 2081 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 2082 "Reassociation Response failed"); 2083 wpa_supplicant_deauthenticate( 2084 wpa_s, WLAN_REASON_INVALID_IE); 2085 return -1; 2086 } 2087 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done"); 2088 } 2089 2090 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, 2091 data->assoc_info.resp_ies_len); 2092#endif /* CONFIG_IEEE80211R */ 2093 2094 /* WPA/RSN IE from Beacon/ProbeResp */ 2095 p = data->assoc_info.beacon_ies; 2096 l = data->assoc_info.beacon_ies_len; 2097 2098 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. 2099 */ 2100 wpa_found = rsn_found = 0; 2101 while (p && l >= 2) { 2102 len = p[1] + 2; 2103 if (len > l) { 2104 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", 2105 p, l); 2106 break; 2107 } 2108 if (!wpa_found && 2109 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 2110 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { 2111 wpa_found = 1; 2112 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); 2113 } 2114 2115 if (!rsn_found && 2116 p[0] == WLAN_EID_RSN && p[1] >= 2) { 2117 rsn_found = 1; 2118 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); 2119 } 2120 2121 l -= len; 2122 p += len; 2123 } 2124 2125 if (!wpa_found && data->assoc_info.beacon_ies) 2126 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); 2127 if (!rsn_found && data->assoc_info.beacon_ies) 2128 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); 2129 if (wpa_found || rsn_found) 2130 wpa_s->ap_ies_from_associnfo = 1; 2131 2132 if (wpa_s->assoc_freq && data->assoc_info.freq && 2133 wpa_s->assoc_freq != data->assoc_info.freq) { 2134 wpa_printf(MSG_DEBUG, "Operating frequency changed from " 2135 "%u to %u MHz", 2136 wpa_s->assoc_freq, data->assoc_info.freq); 2137 wpa_supplicant_update_scan_results(wpa_s); 2138 } 2139 2140 wpa_s->assoc_freq = data->assoc_info.freq; 2141 2142 return 0; 2143} 2144 2145 2146static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s) 2147{ 2148 const u8 *bss_wpa = NULL, *bss_rsn = NULL; 2149 2150 if (!wpa_s->current_bss || !wpa_s->current_ssid) 2151 return -1; 2152 2153 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt)) 2154 return 0; 2155 2156 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss, 2157 WPA_IE_VENDOR_TYPE); 2158 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN); 2159 2160 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, 2161 bss_wpa ? 2 + bss_wpa[1] : 0) || 2162 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, 2163 bss_rsn ? 2 + bss_rsn[1] : 0)) 2164 return -1; 2165 2166 return 0; 2167} 2168 2169 2170static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s, 2171 union wpa_event_data *data) 2172{ 2173#ifdef CONFIG_FST 2174 struct assoc_info *ai = data ? &data->assoc_info : NULL; 2175 struct wpa_bss *bss = wpa_s->current_bss; 2176 const u8 *ieprb, *iebcn; 2177 2178 wpabuf_free(wpa_s->received_mb_ies); 2179 wpa_s->received_mb_ies = NULL; 2180 2181 if (ai && 2182 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) { 2183 wpa_printf(MSG_DEBUG, 2184 "FST: MB IEs updated from Association Response frame"); 2185 return; 2186 } 2187 2188 if (ai && 2189 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) { 2190 wpa_printf(MSG_DEBUG, 2191 "FST: MB IEs updated from association event Beacon IEs"); 2192 return; 2193 } 2194 2195 if (!bss) 2196 return; 2197 2198 ieprb = (const u8 *) (bss + 1); 2199 iebcn = ieprb + bss->ie_len; 2200 2201 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len)) 2202 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE"); 2203 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len)) 2204 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE"); 2205#endif /* CONFIG_FST */ 2206} 2207 2208 2209static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, 2210 union wpa_event_data *data) 2211{ 2212 u8 bssid[ETH_ALEN]; 2213 int ft_completed; 2214 int new_bss = 0; 2215 2216#ifdef CONFIG_AP 2217 if (wpa_s->ap_iface) { 2218 if (!data) 2219 return; 2220 hostapd_notif_assoc(wpa_s->ap_iface->bss[0], 2221 data->assoc_info.addr, 2222 data->assoc_info.req_ies, 2223 data->assoc_info.req_ies_len, 2224 data->assoc_info.reassoc); 2225 return; 2226 } 2227#endif /* CONFIG_AP */ 2228 2229 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL); 2230 2231 ft_completed = wpa_ft_is_completed(wpa_s->wpa); 2232 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) 2233 return; 2234 2235 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { 2236 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID"); 2237 wpa_supplicant_deauthenticate( 2238 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2239 return; 2240 } 2241 2242 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); 2243 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) { 2244 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" 2245 MACSTR, MAC2STR(bssid)); 2246 new_bss = 1; 2247 random_add_randomness(bssid, ETH_ALEN); 2248 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); 2249 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 2250 wpas_notify_bssid_changed(wpa_s); 2251 2252 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { 2253 wpa_clear_keys(wpa_s, bssid); 2254 } 2255 if (wpa_supplicant_select_config(wpa_s) < 0) { 2256 wpa_supplicant_deauthenticate( 2257 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2258 return; 2259 } 2260 } 2261 2262#ifdef ANDROID 2263 if (wpa_s->conf->ap_scan == 1) { 2264#else 2265 if (wpa_s->conf->ap_scan == 1 && 2266 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) { 2267#endif 2268 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss) 2269 wpa_msg(wpa_s, MSG_WARNING, 2270 "WPA/RSN IEs not updated"); 2271 } 2272 2273 wpas_fst_update_mb_assoc(wpa_s, data); 2274 2275#ifdef CONFIG_SME 2276 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); 2277 wpa_s->sme.prev_bssid_set = 1; 2278 wpa_s->sme.last_unprot_disconnect.sec = 0; 2279#endif /* CONFIG_SME */ 2280 2281 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); 2282 if (wpa_s->current_ssid) { 2283 /* When using scanning (ap_scan=1), SIM PC/SC interface can be 2284 * initialized before association, but for other modes, 2285 * initialize PC/SC here, if the current configuration needs 2286 * smartcard or SIM/USIM. */ 2287 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); 2288 } 2289 wpa_sm_notify_assoc(wpa_s->wpa, bssid); 2290 if (wpa_s->l2) 2291 l2_packet_notify_auth_start(wpa_s->l2); 2292 2293 /* 2294 * Set portEnabled first to FALSE in order to get EAP state machine out 2295 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE 2296 * state machine may transit to AUTHENTICATING state based on obsolete 2297 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to 2298 * AUTHENTICATED without ever giving chance to EAP state machine to 2299 * reset the state. 2300 */ 2301 if (!ft_completed) { 2302 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 2303 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 2304 } 2305 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed) 2306 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 2307 /* 802.1X::portControl = Auto */ 2308 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); 2309 wpa_s->eapol_received = 0; 2310 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 2311 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || 2312 (wpa_s->current_ssid && 2313 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { 2314 if (wpa_s->current_ssid && 2315 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE && 2316 (wpa_s->drv_flags & 2317 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) { 2318 /* 2319 * Set the key after having received joined-IBSS event 2320 * from the driver. 2321 */ 2322 wpa_supplicant_set_wpa_none_key(wpa_s, 2323 wpa_s->current_ssid); 2324 } 2325 wpa_supplicant_cancel_auth_timeout(wpa_s); 2326 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 2327 } else if (!ft_completed) { 2328 /* Timeout for receiving the first EAPOL packet */ 2329 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); 2330 } 2331 wpa_supplicant_cancel_scan(wpa_s); 2332 2333 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 2334 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { 2335 /* 2336 * We are done; the driver will take care of RSN 4-way 2337 * handshake. 2338 */ 2339 wpa_supplicant_cancel_auth_timeout(wpa_s); 2340 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 2341 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 2342 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 2343 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 2344 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { 2345 /* 2346 * The driver will take care of RSN 4-way handshake, so we need 2347 * to allow EAPOL supplicant to complete its work without 2348 * waiting for WPA supplicant. 2349 */ 2350 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 2351 } else if (ft_completed) { 2352 /* 2353 * FT protocol completed - make sure EAPOL state machine ends 2354 * up in authenticated. 2355 */ 2356 wpa_supplicant_cancel_auth_timeout(wpa_s); 2357 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 2358 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 2359 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 2360 } 2361 2362 wpa_s->last_eapol_matches_bssid = 0; 2363 2364 if (wpa_s->pending_eapol_rx) { 2365 struct os_reltime now, age; 2366 os_get_reltime(&now); 2367 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age); 2368 if (age.sec == 0 && age.usec < 100000 && 2369 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == 2370 0) { 2371 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " 2372 "frame that was received just before " 2373 "association notification"); 2374 wpa_supplicant_rx_eapol( 2375 wpa_s, wpa_s->pending_eapol_rx_src, 2376 wpabuf_head(wpa_s->pending_eapol_rx), 2377 wpabuf_len(wpa_s->pending_eapol_rx)); 2378 } 2379 wpabuf_free(wpa_s->pending_eapol_rx); 2380 wpa_s->pending_eapol_rx = NULL; 2381 } 2382 2383 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 2384 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 2385 wpa_s->current_ssid && 2386 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) { 2387 /* Set static WEP keys again */ 2388 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); 2389 } 2390 2391#ifdef CONFIG_IBSS_RSN 2392 if (wpa_s->current_ssid && 2393 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 2394 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && 2395 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE && 2396 wpa_s->ibss_rsn == NULL) { 2397 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s); 2398 if (!wpa_s->ibss_rsn) { 2399 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN"); 2400 wpa_supplicant_deauthenticate( 2401 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2402 return; 2403 } 2404 2405 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk); 2406 } 2407#endif /* CONFIG_IBSS_RSN */ 2408 2409 wpas_wps_notify_assoc(wpa_s, bssid); 2410 2411 if (data) { 2412 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies, 2413 data->assoc_info.resp_ies_len, 2414 &data->assoc_info.wmm_params); 2415 2416 if (wpa_s->reassoc_same_bss) 2417 wmm_ac_restore_tspecs(wpa_s); 2418 } 2419} 2420 2421 2422static int disconnect_reason_recoverable(u16 reason_code) 2423{ 2424 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY || 2425 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA || 2426 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA; 2427} 2428 2429 2430static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s, 2431 u16 reason_code, 2432 int locally_generated) 2433{ 2434 const u8 *bssid; 2435 2436 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 2437 /* 2438 * At least Host AP driver and a Prism3 card seemed to be 2439 * generating streams of disconnected events when configuring 2440 * IBSS for WPA-None. Ignore them for now. 2441 */ 2442 return; 2443 } 2444 2445 bssid = wpa_s->bssid; 2446 if (is_zero_ether_addr(bssid)) 2447 bssid = wpa_s->pending_bssid; 2448 2449 if (!is_zero_ether_addr(bssid) || 2450 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 2451 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR 2452 " reason=%d%s", 2453 MAC2STR(bssid), reason_code, 2454 locally_generated ? " locally_generated=1" : ""); 2455 } 2456} 2457 2458 2459static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code, 2460 int locally_generated) 2461{ 2462 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE || 2463 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 2464 return 0; /* Not in 4-way handshake with PSK */ 2465 2466 /* 2467 * It looks like connection was lost while trying to go through PSK 2468 * 4-way handshake. Filter out known disconnection cases that are caused 2469 * by something else than PSK mismatch to avoid confusing reports. 2470 */ 2471 2472 if (locally_generated) { 2473 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS) 2474 return 0; 2475 } 2476 2477 return 1; 2478} 2479 2480 2481static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s, 2482 u16 reason_code, 2483 int locally_generated) 2484{ 2485 const u8 *bssid; 2486 int authenticating; 2487 u8 prev_pending_bssid[ETH_ALEN]; 2488 struct wpa_bss *fast_reconnect = NULL; 2489 struct wpa_ssid *fast_reconnect_ssid = NULL; 2490 struct wpa_ssid *last_ssid; 2491 2492 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING; 2493 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN); 2494 2495 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 2496 /* 2497 * At least Host AP driver and a Prism3 card seemed to be 2498 * generating streams of disconnected events when configuring 2499 * IBSS for WPA-None. Ignore them for now. 2500 */ 2501 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in " 2502 "IBSS/WPA-None mode"); 2503 return; 2504 } 2505 2506 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) { 2507 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - " 2508 "pre-shared key may be incorrect"); 2509 if (wpas_p2p_4way_hs_failed(wpa_s) > 0) 2510 return; /* P2P group removed */ 2511 wpas_auth_failed(wpa_s, "WRONG_KEY"); 2512 } 2513 if (!wpa_s->disconnected && 2514 (!wpa_s->auto_reconnect_disabled || 2515 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS || 2516 wpas_wps_searching(wpa_s) || 2517 wpas_wps_reenable_networks_pending(wpa_s))) { 2518 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to " 2519 "reconnect (wps=%d/%d wpa_state=%d)", 2520 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS, 2521 wpas_wps_searching(wpa_s), 2522 wpa_s->wpa_state); 2523 if (wpa_s->wpa_state == WPA_COMPLETED && 2524 wpa_s->current_ssid && 2525 wpa_s->current_ssid->mode == WPAS_MODE_INFRA && 2526 !locally_generated && 2527 disconnect_reason_recoverable(reason_code)) { 2528 /* 2529 * It looks like the AP has dropped association with 2530 * us, but could allow us to get back in. Try to 2531 * reconnect to the same BSS without full scan to save 2532 * time for some common cases. 2533 */ 2534 fast_reconnect = wpa_s->current_bss; 2535 fast_reconnect_ssid = wpa_s->current_ssid; 2536 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) 2537 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2538 else 2539 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new " 2540 "immediate scan"); 2541 } else { 2542 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not " 2543 "try to re-connect"); 2544 wpa_s->reassociate = 0; 2545 wpa_s->disconnected = 1; 2546 if (!wpa_s->pno) 2547 wpa_supplicant_cancel_sched_scan(wpa_s); 2548 } 2549 bssid = wpa_s->bssid; 2550 if (is_zero_ether_addr(bssid)) 2551 bssid = wpa_s->pending_bssid; 2552 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 2553 wpas_connection_failed(wpa_s, bssid); 2554 wpa_sm_notify_disassoc(wpa_s->wpa); 2555 if (locally_generated) 2556 wpa_s->disconnect_reason = -reason_code; 2557 else 2558 wpa_s->disconnect_reason = reason_code; 2559 wpas_notify_disconnect_reason(wpa_s); 2560 if (wpa_supplicant_dynamic_keys(wpa_s)) { 2561 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys"); 2562 wpa_clear_keys(wpa_s, wpa_s->bssid); 2563 } 2564 last_ssid = wpa_s->current_ssid; 2565 wpa_supplicant_mark_disassoc(wpa_s); 2566 2567 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) { 2568 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); 2569 wpa_s->current_ssid = last_ssid; 2570 } 2571 2572 if (fast_reconnect && 2573 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) && 2574 !disallowed_bssid(wpa_s, fast_reconnect->bssid) && 2575 !disallowed_ssid(wpa_s, fast_reconnect->ssid, 2576 fast_reconnect->ssid_len) && 2577 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) && 2578 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) { 2579#ifndef CONFIG_NO_SCAN_PROCESSING 2580 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS"); 2581 if (wpa_supplicant_connect(wpa_s, fast_reconnect, 2582 fast_reconnect_ssid) < 0) { 2583 /* Recover through full scan */ 2584 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2585 } 2586#endif /* CONFIG_NO_SCAN_PROCESSING */ 2587 } else if (fast_reconnect) { 2588 /* 2589 * Could not reconnect to the same BSS due to network being 2590 * disabled. Use a new scan to match the alternative behavior 2591 * above, i.e., to continue automatic reconnection attempt in a 2592 * way that enforces disabled network rules. 2593 */ 2594 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2595 } 2596} 2597 2598 2599#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2600void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx) 2601{ 2602 struct wpa_supplicant *wpa_s = eloop_ctx; 2603 2604 if (!wpa_s->pending_mic_error_report) 2605 return; 2606 2607 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report"); 2608 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise); 2609 wpa_s->pending_mic_error_report = 0; 2610} 2611#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2612 2613 2614static void 2615wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s, 2616 union wpa_event_data *data) 2617{ 2618 int pairwise; 2619 struct os_reltime t; 2620 2621 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); 2622 pairwise = (data && data->michael_mic_failure.unicast); 2623 os_get_reltime(&t); 2624 if ((wpa_s->last_michael_mic_error.sec && 2625 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) || 2626 wpa_s->pending_mic_error_report) { 2627 if (wpa_s->pending_mic_error_report) { 2628 /* 2629 * Send the pending MIC error report immediately since 2630 * we are going to start countermeasures and AP better 2631 * do the same. 2632 */ 2633 wpa_sm_key_request(wpa_s->wpa, 1, 2634 wpa_s->pending_mic_error_pairwise); 2635 } 2636 2637 /* Send the new MIC error report immediately since we are going 2638 * to start countermeasures and AP better do the same. 2639 */ 2640 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2641 2642 /* initialize countermeasures */ 2643 wpa_s->countermeasures = 1; 2644 2645 wpa_blacklist_add(wpa_s, wpa_s->bssid); 2646 2647 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started"); 2648 2649 /* 2650 * Need to wait for completion of request frame. We do not get 2651 * any callback for the message completion, so just wait a 2652 * short while and hope for the best. */ 2653 os_sleep(0, 10000); 2654 2655 wpa_drv_set_countermeasures(wpa_s, 1); 2656 wpa_supplicant_deauthenticate(wpa_s, 2657 WLAN_REASON_MICHAEL_MIC_FAILURE); 2658 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, 2659 wpa_s, NULL); 2660 eloop_register_timeout(60, 0, 2661 wpa_supplicant_stop_countermeasures, 2662 wpa_s, NULL); 2663 /* TODO: mark the AP rejected for 60 second. STA is 2664 * allowed to associate with another AP.. */ 2665 } else { 2666#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2667 if (wpa_s->mic_errors_seen) { 2668 /* 2669 * Reduce the effectiveness of Michael MIC error 2670 * reports as a means for attacking against TKIP if 2671 * more than one MIC failure is noticed with the same 2672 * PTK. We delay the transmission of the reports by a 2673 * random time between 0 and 60 seconds in order to 2674 * force the attacker wait 60 seconds before getting 2675 * the information on whether a frame resulted in a MIC 2676 * failure. 2677 */ 2678 u8 rval[4]; 2679 int sec; 2680 2681 if (os_get_random(rval, sizeof(rval)) < 0) 2682 sec = os_random() % 60; 2683 else 2684 sec = WPA_GET_BE32(rval) % 60; 2685 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error " 2686 "report %d seconds", sec); 2687 wpa_s->pending_mic_error_report = 1; 2688 wpa_s->pending_mic_error_pairwise = pairwise; 2689 eloop_cancel_timeout( 2690 wpa_supplicant_delayed_mic_error_report, 2691 wpa_s, NULL); 2692 eloop_register_timeout( 2693 sec, os_random() % 1000000, 2694 wpa_supplicant_delayed_mic_error_report, 2695 wpa_s, NULL); 2696 } else { 2697 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2698 } 2699#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2700 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2701#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2702 } 2703 wpa_s->last_michael_mic_error = t; 2704 wpa_s->mic_errors_seen++; 2705} 2706 2707 2708#ifdef CONFIG_TERMINATE_ONLASTIF 2709static int any_interfaces(struct wpa_supplicant *head) 2710{ 2711 struct wpa_supplicant *wpa_s; 2712 2713 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) 2714 if (!wpa_s->interface_removed) 2715 return 1; 2716 return 0; 2717} 2718#endif /* CONFIG_TERMINATE_ONLASTIF */ 2719 2720 2721static void 2722wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, 2723 union wpa_event_data *data) 2724{ 2725 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) 2726 return; 2727 2728 switch (data->interface_status.ievent) { 2729 case EVENT_INTERFACE_ADDED: 2730 if (!wpa_s->interface_removed) 2731 break; 2732 wpa_s->interface_removed = 0; 2733 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); 2734 if (wpa_supplicant_driver_init(wpa_s) < 0) { 2735 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " 2736 "driver after interface was added"); 2737 } 2738 2739#ifdef CONFIG_P2P 2740 if (!wpa_s->global->p2p && 2741 !wpa_s->global->p2p_disabled && 2742 !wpa_s->conf->p2p_disabled && 2743 (wpa_s->drv_flags & 2744 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 2745 wpas_p2p_add_p2pdev_interface( 2746 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) { 2747 wpa_printf(MSG_INFO, 2748 "P2P: Failed to enable P2P Device interface"); 2749 /* Try to continue without. P2P will be disabled. */ 2750 } 2751#endif /* CONFIG_P2P */ 2752 2753 break; 2754 case EVENT_INTERFACE_REMOVED: 2755 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed"); 2756 wpa_s->interface_removed = 1; 2757 wpa_supplicant_mark_disassoc(wpa_s); 2758 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2759 l2_packet_deinit(wpa_s->l2); 2760 wpa_s->l2 = NULL; 2761 2762#ifdef CONFIG_P2P 2763 if (wpa_s->global->p2p && 2764 wpa_s->global->p2p_init_wpa_s->parent == wpa_s && 2765 (wpa_s->drv_flags & 2766 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) { 2767 wpa_dbg(wpa_s, MSG_DEBUG, 2768 "Removing P2P Device interface"); 2769 wpa_supplicant_remove_iface( 2770 wpa_s->global, wpa_s->global->p2p_init_wpa_s, 2771 0); 2772 wpa_s->global->p2p_init_wpa_s = NULL; 2773 } 2774#endif /* CONFIG_P2P */ 2775 2776#ifdef CONFIG_MATCH_IFACE 2777 if (wpa_s->matched) { 2778 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0); 2779 break; 2780 } 2781#endif /* CONFIG_MATCH_IFACE */ 2782 2783#ifdef CONFIG_TERMINATE_ONLASTIF 2784 /* check if last interface */ 2785 if (!any_interfaces(wpa_s->global->ifaces)) 2786 eloop_terminate(); 2787#endif /* CONFIG_TERMINATE_ONLASTIF */ 2788 break; 2789 } 2790} 2791 2792 2793#ifdef CONFIG_PEERKEY 2794static void 2795wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s, 2796 union wpa_event_data *data) 2797{ 2798 if (data == NULL) 2799 return; 2800 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer); 2801} 2802#endif /* CONFIG_PEERKEY */ 2803 2804 2805#ifdef CONFIG_TDLS 2806static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s, 2807 union wpa_event_data *data) 2808{ 2809 if (data == NULL) 2810 return; 2811 switch (data->tdls.oper) { 2812 case TDLS_REQUEST_SETUP: 2813 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer); 2814 if (wpa_tdls_is_external_setup(wpa_s->wpa)) 2815 wpa_tdls_start(wpa_s->wpa, data->tdls.peer); 2816 else 2817 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer); 2818 break; 2819 case TDLS_REQUEST_TEARDOWN: 2820 if (wpa_tdls_is_external_setup(wpa_s->wpa)) 2821 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer, 2822 data->tdls.reason_code); 2823 else 2824 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN, 2825 data->tdls.peer); 2826 break; 2827 case TDLS_REQUEST_DISCOVER: 2828 wpa_tdls_send_discovery_request(wpa_s->wpa, 2829 data->tdls.peer); 2830 break; 2831 } 2832} 2833#endif /* CONFIG_TDLS */ 2834 2835 2836#ifdef CONFIG_WNM 2837static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s, 2838 union wpa_event_data *data) 2839{ 2840 if (data == NULL) 2841 return; 2842 switch (data->wnm.oper) { 2843 case WNM_OPER_SLEEP: 2844 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request " 2845 "(action=%d, intval=%d)", 2846 data->wnm.sleep_action, data->wnm.sleep_intval); 2847 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action, 2848 data->wnm.sleep_intval, NULL); 2849 break; 2850 } 2851} 2852#endif /* CONFIG_WNM */ 2853 2854 2855#ifdef CONFIG_IEEE80211R 2856static void 2857wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s, 2858 union wpa_event_data *data) 2859{ 2860 if (data == NULL) 2861 return; 2862 2863 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies, 2864 data->ft_ies.ies_len, 2865 data->ft_ies.ft_action, 2866 data->ft_ies.target_ap, 2867 data->ft_ies.ric_ies, 2868 data->ft_ies.ric_ies_len) < 0) { 2869 /* TODO: prevent MLME/driver from trying to associate? */ 2870 } 2871} 2872#endif /* CONFIG_IEEE80211R */ 2873 2874 2875#ifdef CONFIG_IBSS_RSN 2876static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s, 2877 union wpa_event_data *data) 2878{ 2879 struct wpa_ssid *ssid; 2880 if (wpa_s->wpa_state < WPA_ASSOCIATED) 2881 return; 2882 if (data == NULL) 2883 return; 2884 ssid = wpa_s->current_ssid; 2885 if (ssid == NULL) 2886 return; 2887 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 2888 return; 2889 2890 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer); 2891} 2892 2893 2894static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s, 2895 union wpa_event_data *data) 2896{ 2897 struct wpa_ssid *ssid = wpa_s->current_ssid; 2898 2899 if (ssid == NULL) 2900 return; 2901 2902 /* check if the ssid is correctly configured as IBSS/RSN */ 2903 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 2904 return; 2905 2906 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame, 2907 data->rx_mgmt.frame_len); 2908} 2909#endif /* CONFIG_IBSS_RSN */ 2910 2911 2912#ifdef CONFIG_IEEE80211R 2913static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, 2914 size_t len) 2915{ 2916 const u8 *sta_addr, *target_ap_addr; 2917 u16 status; 2918 2919 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); 2920 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) 2921 return; /* only SME case supported for now */ 2922 if (len < 1 + 2 * ETH_ALEN + 2) 2923 return; 2924 if (data[0] != 2) 2925 return; /* Only FT Action Response is supported for now */ 2926 sta_addr = data + 1; 2927 target_ap_addr = data + 1 + ETH_ALEN; 2928 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); 2929 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " 2930 MACSTR " TargetAP " MACSTR " status %u", 2931 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); 2932 2933 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { 2934 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR 2935 " in FT Action Response", MAC2STR(sta_addr)); 2936 return; 2937 } 2938 2939 if (status) { 2940 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " 2941 "failure (status code %d)", status); 2942 /* TODO: report error to FT code(?) */ 2943 return; 2944 } 2945 2946 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, 2947 len - (1 + 2 * ETH_ALEN + 2), 1, 2948 target_ap_addr, NULL, 0) < 0) 2949 return; 2950 2951#ifdef CONFIG_SME 2952 { 2953 struct wpa_bss *bss; 2954 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); 2955 if (bss) 2956 wpa_s->sme.freq = bss->freq; 2957 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; 2958 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, 2959 WLAN_AUTH_FT); 2960 } 2961#endif /* CONFIG_SME */ 2962} 2963#endif /* CONFIG_IEEE80211R */ 2964 2965 2966static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, 2967 struct unprot_deauth *e) 2968{ 2969#ifdef CONFIG_IEEE80211W 2970 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " 2971 "dropped: " MACSTR " -> " MACSTR 2972 " (reason code %u)", 2973 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2974 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2975#endif /* CONFIG_IEEE80211W */ 2976} 2977 2978 2979static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, 2980 struct unprot_disassoc *e) 2981{ 2982#ifdef CONFIG_IEEE80211W 2983 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " 2984 "dropped: " MACSTR " -> " MACSTR 2985 " (reason code %u)", 2986 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2987 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2988#endif /* CONFIG_IEEE80211W */ 2989} 2990 2991 2992static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr, 2993 u16 reason_code, int locally_generated, 2994 const u8 *ie, size_t ie_len, int deauth) 2995{ 2996#ifdef CONFIG_AP 2997 if (wpa_s->ap_iface && addr) { 2998 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr); 2999 return; 3000 } 3001 3002 if (wpa_s->ap_iface) { 3003 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode"); 3004 return; 3005 } 3006#endif /* CONFIG_AP */ 3007 3008 if (!locally_generated) 3009 wpa_s->own_disconnect_req = 0; 3010 3011 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated); 3012 3013 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED || 3014 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || 3015 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) && 3016 eapol_sm_failed(wpa_s->eapol))) && 3017 !wpa_s->eap_expected_failure)) 3018 wpas_auth_failed(wpa_s, "AUTH_FAILED"); 3019 3020#ifdef CONFIG_P2P 3021 if (deauth && reason_code > 0) { 3022 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len, 3023 locally_generated) > 0) { 3024 /* 3025 * The interface was removed, so cannot continue 3026 * processing any additional operations after this. 3027 */ 3028 return; 3029 } 3030 } 3031#endif /* CONFIG_P2P */ 3032 3033 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code, 3034 locally_generated); 3035} 3036 3037 3038static void wpas_event_disassoc(struct wpa_supplicant *wpa_s, 3039 struct disassoc_info *info) 3040{ 3041 u16 reason_code = 0; 3042 int locally_generated = 0; 3043 const u8 *addr = NULL; 3044 const u8 *ie = NULL; 3045 size_t ie_len = 0; 3046 3047 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); 3048 3049 if (info) { 3050 addr = info->addr; 3051 ie = info->ie; 3052 ie_len = info->ie_len; 3053 reason_code = info->reason_code; 3054 locally_generated = info->locally_generated; 3055 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code, 3056 locally_generated ? " (locally generated)" : ""); 3057 if (addr) 3058 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 3059 MAC2STR(addr)); 3060 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", 3061 ie, ie_len); 3062 } 3063 3064#ifdef CONFIG_AP 3065 if (wpa_s->ap_iface && info && info->addr) { 3066 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr); 3067 return; 3068 } 3069 3070 if (wpa_s->ap_iface) { 3071 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode"); 3072 return; 3073 } 3074#endif /* CONFIG_AP */ 3075 3076#ifdef CONFIG_P2P 3077 if (info) { 3078 wpas_p2p_disassoc_notif( 3079 wpa_s, info->addr, reason_code, info->ie, info->ie_len, 3080 locally_generated); 3081 } 3082#endif /* CONFIG_P2P */ 3083 3084 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 3085 sme_event_disassoc(wpa_s, info); 3086 3087 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated, 3088 ie, ie_len, 0); 3089} 3090 3091 3092static void wpas_event_deauth(struct wpa_supplicant *wpa_s, 3093 struct deauth_info *info) 3094{ 3095 u16 reason_code = 0; 3096 int locally_generated = 0; 3097 const u8 *addr = NULL; 3098 const u8 *ie = NULL; 3099 size_t ie_len = 0; 3100 3101 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification"); 3102 3103 if (info) { 3104 addr = info->addr; 3105 ie = info->ie; 3106 ie_len = info->ie_len; 3107 reason_code = info->reason_code; 3108 locally_generated = info->locally_generated; 3109 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 3110 reason_code, 3111 locally_generated ? " (locally generated)" : ""); 3112 if (addr) { 3113 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 3114 MAC2STR(addr)); 3115 } 3116 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)", 3117 ie, ie_len); 3118 } 3119 3120 wpa_reset_ft_completed(wpa_s->wpa); 3121 3122 wpas_event_disconnect(wpa_s, addr, reason_code, 3123 locally_generated, ie, ie_len, 1); 3124} 3125 3126 3127static const char * reg_init_str(enum reg_change_initiator init) 3128{ 3129 switch (init) { 3130 case REGDOM_SET_BY_CORE: 3131 return "CORE"; 3132 case REGDOM_SET_BY_USER: 3133 return "USER"; 3134 case REGDOM_SET_BY_DRIVER: 3135 return "DRIVER"; 3136 case REGDOM_SET_BY_COUNTRY_IE: 3137 return "COUNTRY_IE"; 3138 case REGDOM_BEACON_HINT: 3139 return "BEACON_HINT"; 3140 } 3141 return "?"; 3142} 3143 3144 3145static const char * reg_type_str(enum reg_type type) 3146{ 3147 switch (type) { 3148 case REGDOM_TYPE_UNKNOWN: 3149 return "UNKNOWN"; 3150 case REGDOM_TYPE_COUNTRY: 3151 return "COUNTRY"; 3152 case REGDOM_TYPE_WORLD: 3153 return "WORLD"; 3154 case REGDOM_TYPE_CUSTOM_WORLD: 3155 return "CUSTOM_WORLD"; 3156 case REGDOM_TYPE_INTERSECTION: 3157 return "INTERSECTION"; 3158 } 3159 return "?"; 3160} 3161 3162 3163static void wpa_supplicant_update_channel_list( 3164 struct wpa_supplicant *wpa_s, struct channel_list_changed *info) 3165{ 3166 struct wpa_supplicant *ifs; 3167 3168 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s", 3169 reg_init_str(info->initiator), reg_type_str(info->type), 3170 info->alpha2[0] ? " alpha2=" : "", 3171 info->alpha2[0] ? info->alpha2 : ""); 3172 3173 if (wpa_s->drv_priv == NULL) 3174 return; /* Ignore event during drv initialization */ 3175 3176 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, 3177 radio_list) { 3178 wpa_printf(MSG_DEBUG, "%s: Updating hw mode", 3179 ifs->ifname); 3180 free_hw_features(ifs); 3181 ifs->hw.modes = wpa_drv_get_hw_feature_data( 3182 ifs, &ifs->hw.num_modes, &ifs->hw.flags); 3183 } 3184 3185 /* Restart sched_scan with updated channel list */ 3186 if (wpa_s->sched_scanning) { 3187 wpa_dbg(wpa_s, MSG_DEBUG, 3188 "Channel list changed restart sched scan."); 3189 wpa_supplicant_cancel_sched_scan(wpa_s); 3190 wpa_supplicant_req_scan(wpa_s, 0, 0); 3191 } 3192 3193 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER); 3194} 3195 3196 3197static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s, 3198 const u8 *frame, size_t len, int freq, 3199 int rssi) 3200{ 3201 const struct ieee80211_mgmt *mgmt; 3202 const u8 *payload; 3203 size_t plen; 3204 u8 category; 3205 3206 if (len < IEEE80211_HDRLEN + 2) 3207 return; 3208 3209 mgmt = (const struct ieee80211_mgmt *) frame; 3210 payload = frame + IEEE80211_HDRLEN; 3211 category = *payload++; 3212 plen = len - IEEE80211_HDRLEN - 1; 3213 3214 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR 3215 " Category=%u DataLen=%d freq=%d MHz", 3216 MAC2STR(mgmt->sa), category, (int) plen, freq); 3217 3218 if (category == WLAN_ACTION_WMM) { 3219 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen); 3220 return; 3221 } 3222 3223#ifdef CONFIG_IEEE80211R 3224 if (category == WLAN_ACTION_FT) { 3225 ft_rx_action(wpa_s, payload, plen); 3226 return; 3227 } 3228#endif /* CONFIG_IEEE80211R */ 3229 3230#ifdef CONFIG_IEEE80211W 3231#ifdef CONFIG_SME 3232 if (category == WLAN_ACTION_SA_QUERY) { 3233 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen); 3234 return; 3235 } 3236#endif /* CONFIG_SME */ 3237#endif /* CONFIG_IEEE80211W */ 3238 3239#ifdef CONFIG_WNM 3240 if (mgmt->u.action.category == WLAN_ACTION_WNM) { 3241 ieee802_11_rx_wnm_action(wpa_s, mgmt, len); 3242 return; 3243 } 3244#endif /* CONFIG_WNM */ 3245 3246#ifdef CONFIG_GAS 3247 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC || 3248 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) && 3249 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid, 3250 mgmt->u.action.category, 3251 payload, plen, freq) == 0) 3252 return; 3253#endif /* CONFIG_GAS */ 3254 3255#ifdef CONFIG_TDLS 3256 if (category == WLAN_ACTION_PUBLIC && plen >= 4 && 3257 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) { 3258 wpa_dbg(wpa_s, MSG_DEBUG, 3259 "TDLS: Received Discovery Response from " MACSTR, 3260 MAC2STR(mgmt->sa)); 3261 return; 3262 } 3263#endif /* CONFIG_TDLS */ 3264 3265#ifdef CONFIG_INTERWORKING 3266 if (category == WLAN_ACTION_QOS && plen >= 1 && 3267 payload[0] == QOS_QOS_MAP_CONFIG) { 3268 const u8 *pos = payload + 1; 3269 size_t qlen = plen - 1; 3270 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from " 3271 MACSTR, MAC2STR(mgmt->sa)); 3272 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 && 3273 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET && 3274 pos[1] <= qlen - 2 && pos[1] >= 16) 3275 wpas_qos_map_set(wpa_s, pos + 2, pos[1]); 3276 return; 3277 } 3278#endif /* CONFIG_INTERWORKING */ 3279 3280 if (category == WLAN_ACTION_RADIO_MEASUREMENT && 3281 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) { 3282 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1); 3283 return; 3284 } 3285 3286 if (category == WLAN_ACTION_RADIO_MEASUREMENT && 3287 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) { 3288 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa, 3289 payload + 1, plen - 1, 3290 rssi); 3291 return; 3292 } 3293 3294#ifdef CONFIG_FST 3295 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) { 3296 fst_rx_action(wpa_s->fst, mgmt, len); 3297 return; 3298 } 3299#endif /* CONFIG_FST */ 3300 3301 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 3302 category, payload, plen, freq); 3303 if (wpa_s->ifmsh) 3304 mesh_mpm_action_rx(wpa_s, mgmt, len); 3305} 3306 3307 3308static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s, 3309 union wpa_event_data *event) 3310{ 3311 struct wpa_freq_range_list *list; 3312 char *str = NULL; 3313 3314 list = &event->freq_range; 3315 3316 if (list->num) 3317 str = freq_range_list_str(list); 3318 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s", 3319 str ? str : ""); 3320 3321#ifdef CONFIG_P2P 3322 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) { 3323 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range", 3324 __func__); 3325 } else { 3326 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event"); 3327 3328 /* 3329 * The update channel flow will also take care of moving a GO 3330 * from the unsafe frequency if needed. 3331 */ 3332 wpas_p2p_update_channel_list(wpa_s, 3333 WPAS_P2P_CHANNEL_UPDATE_AVOID); 3334 } 3335#endif /* CONFIG_P2P */ 3336 3337 os_free(str); 3338} 3339 3340 3341static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s, 3342 union wpa_event_data *data) 3343{ 3344 wpa_dbg(wpa_s, MSG_DEBUG, 3345 "Connection authorized by device, previous state %d", 3346 wpa_s->wpa_state); 3347 if (wpa_s->wpa_state == WPA_ASSOCIATED) { 3348 wpa_supplicant_cancel_auth_timeout(wpa_s); 3349 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 3350 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 3351 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 3352 } 3353 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr); 3354 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck, 3355 data->assoc_info.ptk_kck_len, 3356 data->assoc_info.ptk_kek, 3357 data->assoc_info.ptk_kek_len); 3358} 3359 3360 3361void wpa_supplicant_event(void *ctx, enum wpa_event_type event, 3362 union wpa_event_data *data) 3363{ 3364 struct wpa_supplicant *wpa_s = ctx; 3365 int resched; 3366 3367 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && 3368 event != EVENT_INTERFACE_ENABLED && 3369 event != EVENT_INTERFACE_STATUS && 3370 event != EVENT_SCAN_RESULTS && 3371 event != EVENT_SCHED_SCAN_STOPPED) { 3372 wpa_dbg(wpa_s, MSG_DEBUG, 3373 "Ignore event %s (%d) while interface is disabled", 3374 event_to_string(event), event); 3375 return; 3376 } 3377 3378#ifndef CONFIG_NO_STDOUT_DEBUG 3379{ 3380 int level = MSG_DEBUG; 3381 3382 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) { 3383 const struct ieee80211_hdr *hdr; 3384 u16 fc; 3385 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame; 3386 fc = le_to_host16(hdr->frame_control); 3387 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 3388 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) 3389 level = MSG_EXCESSIVE; 3390 } 3391 3392 wpa_dbg(wpa_s, level, "Event %s (%d) received", 3393 event_to_string(event), event); 3394} 3395#endif /* CONFIG_NO_STDOUT_DEBUG */ 3396 3397 switch (event) { 3398 case EVENT_AUTH: 3399#ifdef CONFIG_FST 3400 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies, 3401 data->auth.ies_len)) 3402 wpa_printf(MSG_DEBUG, 3403 "FST: MB IEs updated from auth IE"); 3404#endif /* CONFIG_FST */ 3405 sme_event_auth(wpa_s, data); 3406 break; 3407 case EVENT_ASSOC: 3408 wpa_supplicant_event_assoc(wpa_s, data); 3409 if (data && data->assoc_info.authorized) 3410 wpa_supplicant_event_assoc_auth(wpa_s, data); 3411 if (data) { 3412 wpa_msg(wpa_s, MSG_INFO, 3413 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u", 3414 data->assoc_info.subnet_status); 3415 } 3416 break; 3417 case EVENT_DISASSOC: 3418 wpas_event_disassoc(wpa_s, 3419 data ? &data->disassoc_info : NULL); 3420 break; 3421 case EVENT_DEAUTH: 3422 wpas_event_deauth(wpa_s, 3423 data ? &data->deauth_info : NULL); 3424 break; 3425 case EVENT_MICHAEL_MIC_FAILURE: 3426 wpa_supplicant_event_michael_mic_failure(wpa_s, data); 3427 break; 3428#ifndef CONFIG_NO_SCAN_PROCESSING 3429 case EVENT_SCAN_STARTED: 3430 if (wpa_s->own_scan_requested || 3431 (data && !data->scan_info.external_scan)) { 3432 struct os_reltime diff; 3433 3434 os_get_reltime(&wpa_s->scan_start_time); 3435 os_reltime_sub(&wpa_s->scan_start_time, 3436 &wpa_s->scan_trigger_time, &diff); 3437 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds", 3438 diff.sec, diff.usec); 3439 wpa_s->own_scan_requested = 0; 3440 wpa_s->own_scan_running = 1; 3441 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ && 3442 wpa_s->manual_scan_use_id) { 3443 wpa_msg_ctrl(wpa_s, MSG_INFO, 3444 WPA_EVENT_SCAN_STARTED "id=%u", 3445 wpa_s->manual_scan_id); 3446 } else { 3447 wpa_msg_ctrl(wpa_s, MSG_INFO, 3448 WPA_EVENT_SCAN_STARTED); 3449 } 3450 } else { 3451 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan"); 3452 wpa_s->radio->external_scan_running = 1; 3453 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED); 3454 } 3455 break; 3456 case EVENT_SCAN_RESULTS: 3457 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 3458 wpa_s->scan_res_handler = NULL; 3459 wpa_s->own_scan_running = 0; 3460 wpa_s->radio->external_scan_running = 0; 3461 wpa_s->last_scan_req = NORMAL_SCAN_REQ; 3462 break; 3463 } 3464 3465 if (!(data && data->scan_info.external_scan) && 3466 os_reltime_initialized(&wpa_s->scan_start_time)) { 3467 struct os_reltime now, diff; 3468 os_get_reltime(&now); 3469 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff); 3470 wpa_s->scan_start_time.sec = 0; 3471 wpa_s->scan_start_time.usec = 0; 3472 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds", 3473 diff.sec, diff.usec); 3474 } 3475 if (wpa_supplicant_event_scan_results(wpa_s, data)) 3476 break; /* interface may have been removed */ 3477 if (!(data && data->scan_info.external_scan)) 3478 wpa_s->own_scan_running = 0; 3479 if (data && data->scan_info.nl_scan_event) 3480 wpa_s->radio->external_scan_running = 0; 3481 radio_work_check_next(wpa_s); 3482 break; 3483#endif /* CONFIG_NO_SCAN_PROCESSING */ 3484 case EVENT_ASSOCINFO: 3485 wpa_supplicant_event_associnfo(wpa_s, data); 3486 break; 3487 case EVENT_INTERFACE_STATUS: 3488 wpa_supplicant_event_interface_status(wpa_s, data); 3489 break; 3490 case EVENT_PMKID_CANDIDATE: 3491 wpa_supplicant_event_pmkid_candidate(wpa_s, data); 3492 break; 3493#ifdef CONFIG_PEERKEY 3494 case EVENT_STKSTART: 3495 wpa_supplicant_event_stkstart(wpa_s, data); 3496 break; 3497#endif /* CONFIG_PEERKEY */ 3498#ifdef CONFIG_TDLS 3499 case EVENT_TDLS: 3500 wpa_supplicant_event_tdls(wpa_s, data); 3501 break; 3502#endif /* CONFIG_TDLS */ 3503#ifdef CONFIG_WNM 3504 case EVENT_WNM: 3505 wpa_supplicant_event_wnm(wpa_s, data); 3506 break; 3507#endif /* CONFIG_WNM */ 3508#ifdef CONFIG_IEEE80211R 3509 case EVENT_FT_RESPONSE: 3510 wpa_supplicant_event_ft_response(wpa_s, data); 3511 break; 3512#endif /* CONFIG_IEEE80211R */ 3513#ifdef CONFIG_IBSS_RSN 3514 case EVENT_IBSS_RSN_START: 3515 wpa_supplicant_event_ibss_rsn_start(wpa_s, data); 3516 break; 3517#endif /* CONFIG_IBSS_RSN */ 3518 case EVENT_ASSOC_REJECT: 3519 if (data->assoc_reject.bssid) 3520 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 3521 "bssid=" MACSTR " status_code=%u", 3522 MAC2STR(data->assoc_reject.bssid), 3523 data->assoc_reject.status_code); 3524 else 3525 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 3526 "status_code=%u", 3527 data->assoc_reject.status_code); 3528 wpa_s->assoc_status_code = data->assoc_reject.status_code; 3529 wpas_notify_assoc_status_code(wpa_s); 3530 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 3531 sme_event_assoc_reject(wpa_s, data); 3532 else { 3533 const u8 *bssid = data->assoc_reject.bssid; 3534 if (bssid == NULL || is_zero_ether_addr(bssid)) 3535 bssid = wpa_s->pending_bssid; 3536 wpas_connection_failed(wpa_s, bssid); 3537 wpa_supplicant_mark_disassoc(wpa_s); 3538 } 3539 break; 3540 case EVENT_AUTH_TIMED_OUT: 3541 /* It is possible to get this event from earlier connection */ 3542 if (wpa_s->current_ssid && 3543 wpa_s->current_ssid->mode == WPAS_MODE_MESH) { 3544 wpa_dbg(wpa_s, MSG_DEBUG, 3545 "Ignore AUTH_TIMED_OUT in mesh configuration"); 3546 break; 3547 } 3548 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 3549 sme_event_auth_timed_out(wpa_s, data); 3550 break; 3551 case EVENT_ASSOC_TIMED_OUT: 3552 /* It is possible to get this event from earlier connection */ 3553 if (wpa_s->current_ssid && 3554 wpa_s->current_ssid->mode == WPAS_MODE_MESH) { 3555 wpa_dbg(wpa_s, MSG_DEBUG, 3556 "Ignore ASSOC_TIMED_OUT in mesh configuration"); 3557 break; 3558 } 3559 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 3560 sme_event_assoc_timed_out(wpa_s, data); 3561 break; 3562 case EVENT_TX_STATUS: 3563 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR 3564 " type=%d stype=%d", 3565 MAC2STR(data->tx_status.dst), 3566 data->tx_status.type, data->tx_status.stype); 3567#ifdef CONFIG_AP 3568 if (wpa_s->ap_iface == NULL) { 3569#ifdef CONFIG_OFFCHANNEL 3570 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 3571 data->tx_status.stype == WLAN_FC_STYPE_ACTION) 3572 offchannel_send_action_tx_status( 3573 wpa_s, data->tx_status.dst, 3574 data->tx_status.data, 3575 data->tx_status.data_len, 3576 data->tx_status.ack ? 3577 OFFCHANNEL_SEND_ACTION_SUCCESS : 3578 OFFCHANNEL_SEND_ACTION_NO_ACK); 3579#endif /* CONFIG_OFFCHANNEL */ 3580 break; 3581 } 3582#endif /* CONFIG_AP */ 3583#ifdef CONFIG_OFFCHANNEL 3584 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" 3585 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst)); 3586 /* 3587 * Catch TX status events for Action frames we sent via group 3588 * interface in GO mode. 3589 */ 3590 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 3591 data->tx_status.stype == WLAN_FC_STYPE_ACTION && 3592 os_memcmp(wpa_s->parent->pending_action_dst, 3593 data->tx_status.dst, ETH_ALEN) == 0) { 3594 offchannel_send_action_tx_status( 3595 wpa_s->parent, data->tx_status.dst, 3596 data->tx_status.data, 3597 data->tx_status.data_len, 3598 data->tx_status.ack ? 3599 OFFCHANNEL_SEND_ACTION_SUCCESS : 3600 OFFCHANNEL_SEND_ACTION_NO_ACK); 3601 break; 3602 } 3603#endif /* CONFIG_OFFCHANNEL */ 3604#ifdef CONFIG_AP 3605 switch (data->tx_status.type) { 3606 case WLAN_FC_TYPE_MGMT: 3607 ap_mgmt_tx_cb(wpa_s, data->tx_status.data, 3608 data->tx_status.data_len, 3609 data->tx_status.stype, 3610 data->tx_status.ack); 3611 break; 3612 case WLAN_FC_TYPE_DATA: 3613 ap_tx_status(wpa_s, data->tx_status.dst, 3614 data->tx_status.data, 3615 data->tx_status.data_len, 3616 data->tx_status.ack); 3617 break; 3618 } 3619#endif /* CONFIG_AP */ 3620 break; 3621#ifdef CONFIG_AP 3622 case EVENT_EAPOL_TX_STATUS: 3623 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst, 3624 data->eapol_tx_status.data, 3625 data->eapol_tx_status.data_len, 3626 data->eapol_tx_status.ack); 3627 break; 3628 case EVENT_DRIVER_CLIENT_POLL_OK: 3629 ap_client_poll_ok(wpa_s, data->client_poll.addr); 3630 break; 3631 case EVENT_RX_FROM_UNKNOWN: 3632 if (wpa_s->ap_iface == NULL) 3633 break; 3634 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr, 3635 data->rx_from_unknown.wds); 3636 break; 3637 case EVENT_CH_SWITCH: 3638 if (!data || !wpa_s->current_ssid) 3639 break; 3640 3641 wpa_s->assoc_freq = data->ch_switch.freq; 3642 wpa_s->current_ssid->frequency = data->ch_switch.freq; 3643 3644 if (wpa_s->current_ssid->mode == WPAS_MODE_AP || 3645 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO || 3646 wpa_s->current_ssid->mode == 3647 WPAS_MODE_P2P_GROUP_FORMATION) { 3648 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq, 3649 data->ch_switch.ht_enabled, 3650 data->ch_switch.ch_offset, 3651 data->ch_switch.ch_width, 3652 data->ch_switch.cf1, 3653 data->ch_switch.cf2); 3654 } 3655 3656 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS); 3657 break; 3658#ifdef NEED_AP_MLME 3659 case EVENT_DFS_RADAR_DETECTED: 3660 if (data) 3661 wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event); 3662 break; 3663 case EVENT_DFS_CAC_STARTED: 3664 if (data) 3665 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event); 3666 break; 3667 case EVENT_DFS_CAC_FINISHED: 3668 if (data) 3669 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event); 3670 break; 3671 case EVENT_DFS_CAC_ABORTED: 3672 if (data) 3673 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event); 3674 break; 3675 case EVENT_DFS_NOP_FINISHED: 3676 if (data) 3677 wpas_event_dfs_cac_nop_finished(wpa_s, 3678 &data->dfs_event); 3679 break; 3680#endif /* NEED_AP_MLME */ 3681#endif /* CONFIG_AP */ 3682 case EVENT_RX_MGMT: { 3683 u16 fc, stype; 3684 const struct ieee80211_mgmt *mgmt; 3685 3686#ifdef CONFIG_TESTING_OPTIONS 3687 if (wpa_s->ext_mgmt_frame_handling) { 3688 struct rx_mgmt *rx = &data->rx_mgmt; 3689 size_t hex_len = 2 * rx->frame_len + 1; 3690 char *hex = os_malloc(hex_len); 3691 if (hex) { 3692 wpa_snprintf_hex(hex, hex_len, 3693 rx->frame, rx->frame_len); 3694 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s", 3695 rx->freq, rx->datarate, rx->ssi_signal, 3696 hex); 3697 os_free(hex); 3698 } 3699 break; 3700 } 3701#endif /* CONFIG_TESTING_OPTIONS */ 3702 3703 mgmt = (const struct ieee80211_mgmt *) 3704 data->rx_mgmt.frame; 3705 fc = le_to_host16(mgmt->frame_control); 3706 stype = WLAN_FC_GET_STYPE(fc); 3707 3708#ifdef CONFIG_AP 3709 if (wpa_s->ap_iface == NULL) { 3710#endif /* CONFIG_AP */ 3711#ifdef CONFIG_P2P 3712 if (stype == WLAN_FC_STYPE_PROBE_REQ && 3713 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) { 3714 const u8 *src = mgmt->sa; 3715 const u8 *ie; 3716 size_t ie_len; 3717 3718 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN; 3719 ie_len = data->rx_mgmt.frame_len - 3720 IEEE80211_HDRLEN; 3721 wpas_p2p_probe_req_rx( 3722 wpa_s, src, mgmt->da, 3723 mgmt->bssid, ie, ie_len, 3724 data->rx_mgmt.freq, 3725 data->rx_mgmt.ssi_signal); 3726 break; 3727 } 3728#endif /* CONFIG_P2P */ 3729#ifdef CONFIG_IBSS_RSN 3730 if (wpa_s->current_ssid && 3731 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 3732 stype == WLAN_FC_STYPE_AUTH && 3733 data->rx_mgmt.frame_len >= 30) { 3734 wpa_supplicant_event_ibss_auth(wpa_s, data); 3735 break; 3736 } 3737#endif /* CONFIG_IBSS_RSN */ 3738 3739 if (stype == WLAN_FC_STYPE_ACTION) { 3740 wpas_event_rx_mgmt_action( 3741 wpa_s, data->rx_mgmt.frame, 3742 data->rx_mgmt.frame_len, 3743 data->rx_mgmt.freq, 3744 data->rx_mgmt.ssi_signal); 3745 break; 3746 } 3747 3748 if (wpa_s->ifmsh) { 3749 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt); 3750 break; 3751 } 3752 3753 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " 3754 "management frame in non-AP mode"); 3755 break; 3756#ifdef CONFIG_AP 3757 } 3758 3759 if (stype == WLAN_FC_STYPE_PROBE_REQ && 3760 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) { 3761 const u8 *ie; 3762 size_t ie_len; 3763 3764 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN; 3765 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN; 3766 3767 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da, 3768 mgmt->bssid, ie, ie_len, 3769 data->rx_mgmt.ssi_signal); 3770 } 3771 3772 ap_mgmt_rx(wpa_s, &data->rx_mgmt); 3773#endif /* CONFIG_AP */ 3774 break; 3775 } 3776 case EVENT_RX_PROBE_REQ: 3777 if (data->rx_probe_req.sa == NULL || 3778 data->rx_probe_req.ie == NULL) 3779 break; 3780#ifdef CONFIG_AP 3781 if (wpa_s->ap_iface) { 3782 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], 3783 data->rx_probe_req.sa, 3784 data->rx_probe_req.da, 3785 data->rx_probe_req.bssid, 3786 data->rx_probe_req.ie, 3787 data->rx_probe_req.ie_len, 3788 data->rx_probe_req.ssi_signal); 3789 break; 3790 } 3791#endif /* CONFIG_AP */ 3792 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa, 3793 data->rx_probe_req.da, 3794 data->rx_probe_req.bssid, 3795 data->rx_probe_req.ie, 3796 data->rx_probe_req.ie_len, 3797 0, 3798 data->rx_probe_req.ssi_signal); 3799 break; 3800 case EVENT_REMAIN_ON_CHANNEL: 3801#ifdef CONFIG_OFFCHANNEL 3802 offchannel_remain_on_channel_cb( 3803 wpa_s, data->remain_on_channel.freq, 3804 data->remain_on_channel.duration); 3805#endif /* CONFIG_OFFCHANNEL */ 3806 wpas_p2p_remain_on_channel_cb( 3807 wpa_s, data->remain_on_channel.freq, 3808 data->remain_on_channel.duration); 3809 break; 3810 case EVENT_CANCEL_REMAIN_ON_CHANNEL: 3811#ifdef CONFIG_OFFCHANNEL 3812 offchannel_cancel_remain_on_channel_cb( 3813 wpa_s, data->remain_on_channel.freq); 3814#endif /* CONFIG_OFFCHANNEL */ 3815 wpas_p2p_cancel_remain_on_channel_cb( 3816 wpa_s, data->remain_on_channel.freq); 3817 break; 3818 case EVENT_EAPOL_RX: 3819 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, 3820 data->eapol_rx.data, 3821 data->eapol_rx.data_len); 3822 break; 3823 case EVENT_SIGNAL_CHANGE: 3824 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE 3825 "above=%d signal=%d noise=%d txrate=%d", 3826 data->signal_change.above_threshold, 3827 data->signal_change.current_signal, 3828 data->signal_change.current_noise, 3829 data->signal_change.current_txrate); 3830 wpa_bss_update_level(wpa_s->current_bss, 3831 data->signal_change.current_signal); 3832 bgscan_notify_signal_change( 3833 wpa_s, data->signal_change.above_threshold, 3834 data->signal_change.current_signal, 3835 data->signal_change.current_noise, 3836 data->signal_change.current_txrate); 3837 break; 3838 case EVENT_INTERFACE_ENABLED: 3839 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); 3840 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 3841 wpa_supplicant_update_mac_addr(wpa_s); 3842 if (wpa_s->p2p_mgmt) { 3843 wpa_supplicant_set_state(wpa_s, 3844 WPA_DISCONNECTED); 3845 break; 3846 } 3847 3848#ifdef CONFIG_AP 3849 if (!wpa_s->ap_iface) { 3850 wpa_supplicant_set_state(wpa_s, 3851 WPA_DISCONNECTED); 3852 wpa_s->scan_req = NORMAL_SCAN_REQ; 3853 wpa_supplicant_req_scan(wpa_s, 0, 0); 3854 } else 3855 wpa_supplicant_set_state(wpa_s, 3856 WPA_COMPLETED); 3857#else /* CONFIG_AP */ 3858 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 3859 wpa_supplicant_req_scan(wpa_s, 0, 0); 3860#endif /* CONFIG_AP */ 3861 } 3862 break; 3863 case EVENT_INTERFACE_DISABLED: 3864 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); 3865#ifdef CONFIG_P2P 3866 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO || 3867 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group && 3868 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) { 3869 /* 3870 * Mark interface disabled if this happens to end up not 3871 * being removed as a separate P2P group interface. 3872 */ 3873 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 3874 /* 3875 * The interface was externally disabled. Remove 3876 * it assuming an external entity will start a 3877 * new session if needed. 3878 */ 3879 if (wpa_s->current_ssid && 3880 wpa_s->current_ssid->p2p_group) 3881 wpas_p2p_interface_unavailable(wpa_s); 3882 else 3883 wpas_p2p_disconnect(wpa_s); 3884 /* 3885 * wpa_s instance may have been freed, so must not use 3886 * it here anymore. 3887 */ 3888 break; 3889 } 3890 if (wpa_s->p2p_scan_work && wpa_s->global->p2p && 3891 p2p_in_progress(wpa_s->global->p2p) > 1) { 3892 /* This radio work will be cancelled, so clear P2P 3893 * state as well. 3894 */ 3895 p2p_stop_find(wpa_s->global->p2p); 3896 } 3897#endif /* CONFIG_P2P */ 3898 3899 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) { 3900 /* 3901 * Indicate disconnection to keep ctrl_iface events 3902 * consistent. 3903 */ 3904 wpa_supplicant_event_disassoc( 3905 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1); 3906 } 3907 wpa_supplicant_mark_disassoc(wpa_s); 3908 radio_remove_works(wpa_s, NULL, 0); 3909 3910 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 3911 break; 3912 case EVENT_CHANNEL_LIST_CHANGED: 3913 wpa_supplicant_update_channel_list( 3914 wpa_s, &data->channel_list_changed); 3915 break; 3916 case EVENT_INTERFACE_UNAVAILABLE: 3917 wpas_p2p_interface_unavailable(wpa_s); 3918 break; 3919 case EVENT_BEST_CHANNEL: 3920 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " 3921 "(%d %d %d)", 3922 data->best_chan.freq_24, data->best_chan.freq_5, 3923 data->best_chan.freq_overall); 3924 wpa_s->best_24_freq = data->best_chan.freq_24; 3925 wpa_s->best_5_freq = data->best_chan.freq_5; 3926 wpa_s->best_overall_freq = data->best_chan.freq_overall; 3927 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, 3928 data->best_chan.freq_5, 3929 data->best_chan.freq_overall); 3930 break; 3931 case EVENT_UNPROT_DEAUTH: 3932 wpa_supplicant_event_unprot_deauth(wpa_s, 3933 &data->unprot_deauth); 3934 break; 3935 case EVENT_UNPROT_DISASSOC: 3936 wpa_supplicant_event_unprot_disassoc(wpa_s, 3937 &data->unprot_disassoc); 3938 break; 3939 case EVENT_STATION_LOW_ACK: 3940#ifdef CONFIG_AP 3941 if (wpa_s->ap_iface && data) 3942 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], 3943 data->low_ack.addr); 3944#endif /* CONFIG_AP */ 3945#ifdef CONFIG_TDLS 3946 if (data) 3947 wpa_tdls_disable_unreachable_link(wpa_s->wpa, 3948 data->low_ack.addr); 3949#endif /* CONFIG_TDLS */ 3950 break; 3951 case EVENT_IBSS_PEER_LOST: 3952#ifdef CONFIG_IBSS_RSN 3953 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer); 3954#endif /* CONFIG_IBSS_RSN */ 3955 break; 3956 case EVENT_DRIVER_GTK_REKEY: 3957 if (os_memcmp(data->driver_gtk_rekey.bssid, 3958 wpa_s->bssid, ETH_ALEN)) 3959 break; 3960 if (!wpa_s->wpa) 3961 break; 3962 wpa_sm_update_replay_ctr(wpa_s->wpa, 3963 data->driver_gtk_rekey.replay_ctr); 3964 break; 3965 case EVENT_SCHED_SCAN_STOPPED: 3966 wpa_s->sched_scanning = 0; 3967 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s); 3968 wpa_supplicant_notify_scanning(wpa_s, 0); 3969 3970 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 3971 break; 3972 3973 /* 3974 * Start a new sched scan to continue searching for more SSIDs 3975 * either if timed out or PNO schedule scan is pending. 3976 */ 3977 if (wpa_s->sched_scan_timed_out) { 3978 wpa_supplicant_req_sched_scan(wpa_s); 3979 } else if (wpa_s->pno_sched_pending) { 3980 wpa_s->pno_sched_pending = 0; 3981 wpas_start_pno(wpa_s); 3982 } else if (resched) { 3983 wpa_supplicant_req_scan(wpa_s, 0, 0); 3984 } 3985 3986 break; 3987 case EVENT_WPS_BUTTON_PUSHED: 3988#ifdef CONFIG_WPS 3989 wpas_wps_start_pbc(wpa_s, NULL, 0); 3990#endif /* CONFIG_WPS */ 3991 break; 3992 case EVENT_AVOID_FREQUENCIES: 3993 wpa_supplicant_notify_avoid_freq(wpa_s, data); 3994 break; 3995 case EVENT_CONNECT_FAILED_REASON: 3996#ifdef CONFIG_AP 3997 if (!wpa_s->ap_iface || !data) 3998 break; 3999 hostapd_event_connect_failed_reason( 4000 wpa_s->ap_iface->bss[0], 4001 data->connect_failed_reason.addr, 4002 data->connect_failed_reason.code); 4003#endif /* CONFIG_AP */ 4004 break; 4005 case EVENT_NEW_PEER_CANDIDATE: 4006#ifdef CONFIG_MESH 4007 if (!wpa_s->ifmsh || !data) 4008 break; 4009 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer, 4010 data->mesh_peer.ies, 4011 data->mesh_peer.ie_len); 4012#endif /* CONFIG_MESH */ 4013 break; 4014 case EVENT_SURVEY: 4015#ifdef CONFIG_AP 4016 if (!wpa_s->ap_iface) 4017 break; 4018 hostapd_event_get_survey(wpa_s->ap_iface, 4019 &data->survey_results); 4020#endif /* CONFIG_AP */ 4021 break; 4022 case EVENT_ACS_CHANNEL_SELECTED: 4023#ifdef CONFIG_ACS 4024 if (!wpa_s->ap_iface) 4025 break; 4026 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0], 4027 &data->acs_selected_channels); 4028#endif /* CONFIG_ACS */ 4029 break; 4030 default: 4031 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); 4032 break; 4033 } 4034} 4035 4036 4037void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event, 4038 union wpa_event_data *data) 4039{ 4040 struct wpa_supplicant *wpa_s; 4041 4042 if (event != EVENT_INTERFACE_STATUS) 4043 return; 4044 4045 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname); 4046 if (wpa_s && wpa_s->driver->get_ifindex) { 4047 unsigned int ifindex; 4048 4049 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv); 4050 if (ifindex != data->interface_status.ifindex) { 4051 wpa_dbg(wpa_s, MSG_DEBUG, 4052 "interface status ifindex %d mismatch (%d)", 4053 ifindex, data->interface_status.ifindex); 4054 return; 4055 } 4056 } 4057#ifdef CONFIG_MATCH_IFACE 4058 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) { 4059 struct wpa_interface *wpa_i; 4060 4061 wpa_i = wpa_supplicant_match_iface( 4062 ctx, data->interface_status.ifname); 4063 if (!wpa_i) 4064 return; 4065 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL); 4066 os_free(wpa_i); 4067 if (wpa_s) 4068 wpa_s->matched = 1; 4069 } 4070#endif /* CONFIG_MATCH_IFACE */ 4071 4072 if (wpa_s) 4073 wpa_supplicant_event(wpa_s, event, data); 4074} 4075