events.c revision 337817
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#ifdef CONFIG_HS20 285 /* Clear possibly configured frame filters */ 286 wpa_drv_configure_frame_filters(wpa_s, 0); 287#endif /* CONFIG_HS20 */ 288 289 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 290 return; 291 292 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 293 bssid_changed = !is_zero_ether_addr(wpa_s->bssid); 294 os_memset(wpa_s->bssid, 0, ETH_ALEN); 295 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 296 sme_clear_on_disassoc(wpa_s); 297 wpa_s->current_bss = NULL; 298 wpa_s->assoc_freq = 0; 299 300 if (bssid_changed) 301 wpas_notify_bssid_changed(wpa_s); 302 303 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 304 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 305 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 306 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 307 wpa_s->ap_ies_from_associnfo = 0; 308 wpa_s->current_ssid = NULL; 309 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 310 wpa_s->key_mgmt = 0; 311 312 wpas_rrm_reset(wpa_s); 313 wpa_s->wnmsleep_used = 0; 314} 315 316 317static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s) 318{ 319 struct wpa_ie_data ie; 320 int pmksa_set = -1; 321 size_t i; 322 323 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 || 324 ie.pmkid == NULL) 325 return; 326 327 for (i = 0; i < ie.num_pmkid; i++) { 328 pmksa_set = pmksa_cache_set_current(wpa_s->wpa, 329 ie.pmkid + i * PMKID_LEN, 330 NULL, NULL, 0); 331 if (pmksa_set == 0) { 332 eapol_sm_notify_pmkid_attempt(wpa_s->eapol); 333 break; 334 } 335 } 336 337 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from " 338 "PMKSA cache", pmksa_set == 0 ? "" : "not "); 339} 340 341 342static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s, 343 union wpa_event_data *data) 344{ 345 if (data == NULL) { 346 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate " 347 "event"); 348 return; 349 } 350 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR 351 " index=%d preauth=%d", 352 MAC2STR(data->pmkid_candidate.bssid), 353 data->pmkid_candidate.index, 354 data->pmkid_candidate.preauth); 355 356 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid, 357 data->pmkid_candidate.index, 358 data->pmkid_candidate.preauth); 359} 360 361 362static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s) 363{ 364 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 365 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) 366 return 0; 367 368#ifdef IEEE8021X_EAPOL 369 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA && 370 wpa_s->current_ssid && 371 !(wpa_s->current_ssid->eapol_flags & 372 (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 373 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) { 374 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either 375 * plaintext or static WEP keys). */ 376 return 0; 377 } 378#endif /* IEEE8021X_EAPOL */ 379 380 return 1; 381} 382 383 384/** 385 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC 386 * @wpa_s: pointer to wpa_supplicant data 387 * @ssid: Configuration data for the network 388 * Returns: 0 on success, -1 on failure 389 * 390 * This function is called when starting authentication with a network that is 391 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA). 392 */ 393int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s, 394 struct wpa_ssid *ssid) 395{ 396#ifdef IEEE8021X_EAPOL 397#ifdef PCSC_FUNCS 398 int aka = 0, sim = 0; 399 400 if ((ssid != NULL && ssid->eap.pcsc == NULL) || 401 wpa_s->scard != NULL || wpa_s->conf->external_sim) 402 return 0; 403 404 if (ssid == NULL || ssid->eap.eap_methods == NULL) { 405 sim = 1; 406 aka = 1; 407 } else { 408 struct eap_method_type *eap = ssid->eap.eap_methods; 409 while (eap->vendor != EAP_VENDOR_IETF || 410 eap->method != EAP_TYPE_NONE) { 411 if (eap->vendor == EAP_VENDOR_IETF) { 412 if (eap->method == EAP_TYPE_SIM) 413 sim = 1; 414 else if (eap->method == EAP_TYPE_AKA || 415 eap->method == EAP_TYPE_AKA_PRIME) 416 aka = 1; 417 } 418 eap++; 419 } 420 } 421 422 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL) 423 sim = 0; 424 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL && 425 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) == 426 NULL) 427 aka = 0; 428 429 if (!sim && !aka) { 430 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to " 431 "use SIM, but neither EAP-SIM nor EAP-AKA are " 432 "enabled"); 433 return 0; 434 } 435 436 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM " 437 "(sim=%d aka=%d) - initialize PCSC", sim, aka); 438 439 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader); 440 if (wpa_s->scard == NULL) { 441 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM " 442 "(pcsc-lite)"); 443 return -1; 444 } 445 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); 446 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); 447#endif /* PCSC_FUNCS */ 448#endif /* IEEE8021X_EAPOL */ 449 450 return 0; 451} 452 453 454#ifndef CONFIG_NO_SCAN_PROCESSING 455 456static int has_wep_key(struct wpa_ssid *ssid) 457{ 458 int i; 459 460 for (i = 0; i < NUM_WEP_KEYS; i++) { 461 if (ssid->wep_key_len[i]) 462 return 1; 463 } 464 465 return 0; 466} 467 468 469static int wpa_supplicant_match_privacy(struct wpa_bss *bss, 470 struct wpa_ssid *ssid) 471{ 472 int privacy = 0; 473 474 if (ssid->mixed_cell) 475 return 1; 476 477#ifdef CONFIG_WPS 478 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) 479 return 1; 480#endif /* CONFIG_WPS */ 481 482 if (has_wep_key(ssid)) 483 privacy = 1; 484 485#ifdef IEEE8021X_EAPOL 486 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 487 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 488 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) 489 privacy = 1; 490#endif /* IEEE8021X_EAPOL */ 491 492 if (wpa_key_mgmt_wpa(ssid->key_mgmt)) 493 privacy = 1; 494 495 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) 496 privacy = 1; 497 498 if (bss->caps & IEEE80211_CAP_PRIVACY) 499 return privacy; 500 return !privacy; 501} 502 503 504static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s, 505 struct wpa_ssid *ssid, 506 struct wpa_bss *bss) 507{ 508 struct wpa_ie_data ie; 509 int proto_match = 0; 510 const u8 *rsn_ie, *wpa_ie; 511 int ret; 512 int wep_ok; 513 514 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss); 515 if (ret >= 0) 516 return ret; 517 518 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */ 519 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) && 520 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 521 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) || 522 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)); 523 524 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 525 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) { 526 proto_match++; 527 528 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) { 529 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse " 530 "failed"); 531 break; 532 } 533 534 if (wep_ok && 535 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 536 { 537 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 538 "in RSN IE"); 539 return 1; 540 } 541 542 if (!(ie.proto & ssid->proto)) { 543 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto " 544 "mismatch"); 545 break; 546 } 547 548 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 549 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK " 550 "cipher mismatch"); 551 break; 552 } 553 554 if (!(ie.group_cipher & ssid->group_cipher)) { 555 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK " 556 "cipher mismatch"); 557 break; 558 } 559 560 if (!(ie.key_mgmt & ssid->key_mgmt)) { 561 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt " 562 "mismatch"); 563 break; 564 } 565 566#ifdef CONFIG_IEEE80211W 567 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 568 wpas_get_ssid_pmf(wpa_s, ssid) == 569 MGMT_FRAME_PROTECTION_REQUIRED) { 570 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt " 571 "frame protection"); 572 break; 573 } 574#endif /* CONFIG_IEEE80211W */ 575 if ((ie.capabilities & WPA_CAPABILITY_MFPR) && 576 wpas_get_ssid_pmf(wpa_s, ssid) == 577 NO_MGMT_FRAME_PROTECTION) { 578 wpa_dbg(wpa_s, MSG_DEBUG, 579 " skip RSN IE - no mgmt frame protection enabled but AP requires it"); 580 break; 581 } 582#ifdef CONFIG_MBO 583 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 584 wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND) && 585 wpas_get_ssid_pmf(wpa_s, ssid) != 586 NO_MGMT_FRAME_PROTECTION) { 587 wpa_dbg(wpa_s, MSG_DEBUG, 588 " skip RSN IE - no mgmt frame protection enabled on MBO AP"); 589 break; 590 } 591#endif /* CONFIG_MBO */ 592 593 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE"); 594 return 1; 595 } 596 597#ifdef CONFIG_IEEE80211W 598 if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED) { 599 wpa_dbg(wpa_s, MSG_DEBUG, 600 " skip - MFP Required but network not MFP Capable"); 601 return 0; 602 } 603#endif /* CONFIG_IEEE80211W */ 604 605 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 606 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) { 607 proto_match++; 608 609 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) { 610 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse " 611 "failed"); 612 break; 613 } 614 615 if (wep_ok && 616 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 617 { 618 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 619 "in WPA IE"); 620 return 1; 621 } 622 623 if (!(ie.proto & ssid->proto)) { 624 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto " 625 "mismatch"); 626 break; 627 } 628 629 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 630 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK " 631 "cipher mismatch"); 632 break; 633 } 634 635 if (!(ie.group_cipher & ssid->group_cipher)) { 636 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK " 637 "cipher mismatch"); 638 break; 639 } 640 641 if (!(ie.key_mgmt & ssid->key_mgmt)) { 642 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt " 643 "mismatch"); 644 break; 645 } 646 647 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE"); 648 return 1; 649 } 650 651 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie && 652 !rsn_ie) { 653 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X"); 654 return 1; 655 } 656 657 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) && 658 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) { 659 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match"); 660 return 0; 661 } 662 663 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && 664 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) { 665 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN"); 666 return 1; 667 } 668 669 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) { 670 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2"); 671 return 1; 672 } 673 674 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with " 675 "WPA/WPA2"); 676 677 return 0; 678} 679 680 681static int freq_allowed(int *freqs, int freq) 682{ 683 int i; 684 685 if (freqs == NULL) 686 return 1; 687 688 for (i = 0; freqs[i]; i++) 689 if (freqs[i] == freq) 690 return 1; 691 return 0; 692} 693 694 695static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss) 696{ 697 const struct hostapd_hw_modes *mode = NULL, *modes; 698 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES }; 699 const u8 *rate_ie; 700 int i, j, k; 701 702 if (bss->freq == 0) 703 return 1; /* Cannot do matching without knowing band */ 704 705 modes = wpa_s->hw.modes; 706 if (modes == NULL) { 707 /* 708 * The driver does not provide any additional information 709 * about the utilized hardware, so allow the connection attempt 710 * to continue. 711 */ 712 return 1; 713 } 714 715 for (i = 0; i < wpa_s->hw.num_modes; i++) { 716 for (j = 0; j < modes[i].num_channels; j++) { 717 int freq = modes[i].channels[j].freq; 718 if (freq == bss->freq) { 719 if (mode && 720 mode->mode == HOSTAPD_MODE_IEEE80211G) 721 break; /* do not allow 802.11b replace 722 * 802.11g */ 723 mode = &modes[i]; 724 break; 725 } 726 } 727 } 728 729 if (mode == NULL) 730 return 0; 731 732 for (i = 0; i < (int) sizeof(scan_ie); i++) { 733 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]); 734 if (rate_ie == NULL) 735 continue; 736 737 for (j = 2; j < rate_ie[1] + 2; j++) { 738 int flagged = !!(rate_ie[j] & 0x80); 739 int r = (rate_ie[j] & 0x7f) * 5; 740 741 /* 742 * IEEE Std 802.11n-2009 7.3.2.2: 743 * The new BSS Membership selector value is encoded 744 * like a legacy basic rate, but it is not a rate and 745 * only indicates if the BSS members are required to 746 * support the mandatory features of Clause 20 [HT PHY] 747 * in order to join the BSS. 748 */ 749 if (flagged && ((rate_ie[j] & 0x7f) == 750 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) { 751 if (!ht_supported(mode)) { 752 wpa_dbg(wpa_s, MSG_DEBUG, 753 " hardware does not support " 754 "HT PHY"); 755 return 0; 756 } 757 continue; 758 } 759 760 /* There's also a VHT selector for 802.11ac */ 761 if (flagged && ((rate_ie[j] & 0x7f) == 762 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) { 763 if (!vht_supported(mode)) { 764 wpa_dbg(wpa_s, MSG_DEBUG, 765 " hardware does not support " 766 "VHT PHY"); 767 return 0; 768 } 769 continue; 770 } 771 772 if (!flagged) 773 continue; 774 775 /* check for legacy basic rates */ 776 for (k = 0; k < mode->num_rates; k++) { 777 if (mode->rates[k] == r) 778 break; 779 } 780 if (k == mode->num_rates) { 781 /* 782 * IEEE Std 802.11-2007 7.3.2.2 demands that in 783 * order to join a BSS all required rates 784 * have to be supported by the hardware. 785 */ 786 wpa_dbg(wpa_s, MSG_DEBUG, 787 " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)", 788 r / 10, r % 10, 789 bss->freq, mode->mode, mode->num_rates); 790 return 0; 791 } 792 } 793 } 794 795 return 1; 796} 797 798 799/* 800 * Test whether BSS is in an ESS. 801 * This is done differently in DMG (60 GHz) and non-DMG bands 802 */ 803static int bss_is_ess(struct wpa_bss *bss) 804{ 805 if (bss_is_dmg(bss)) { 806 return (bss->caps & IEEE80211_CAP_DMG_MASK) == 807 IEEE80211_CAP_DMG_AP; 808 } 809 810 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) == 811 IEEE80211_CAP_ESS); 812} 813 814 815static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask) 816{ 817 size_t i; 818 819 for (i = 0; i < ETH_ALEN; i++) { 820 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i])) 821 return 0; 822 } 823 return 1; 824} 825 826 827static int addr_in_list(const u8 *addr, const u8 *list, size_t num) 828{ 829 size_t i; 830 831 for (i = 0; i < num; i++) { 832 const u8 *a = list + i * ETH_ALEN * 2; 833 const u8 *m = a + ETH_ALEN; 834 835 if (match_mac_mask(a, addr, m)) 836 return 1; 837 } 838 return 0; 839} 840 841 842struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s, 843 int i, struct wpa_bss *bss, 844 struct wpa_ssid *group, 845 int only_first_ssid) 846{ 847 u8 wpa_ie_len, rsn_ie_len; 848 int wpa; 849 struct wpa_blacklist *e; 850 const u8 *ie; 851 struct wpa_ssid *ssid; 852 int osen; 853#ifdef CONFIG_MBO 854 const u8 *assoc_disallow; 855#endif /* CONFIG_MBO */ 856 857 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 858 wpa_ie_len = ie ? ie[1] : 0; 859 860 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 861 rsn_ie_len = ie ? ie[1] : 0; 862 863 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE); 864 osen = ie != NULL; 865 866 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' " 867 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s", 868 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len), 869 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, bss->freq, 870 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "", 871 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) || 872 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ? 873 " p2p" : "", 874 osen ? " osen=1" : ""); 875 876 e = wpa_blacklist_get(wpa_s, bss->bssid); 877 if (e) { 878 int limit = 1; 879 if (wpa_supplicant_enabled_networks(wpa_s) == 1) { 880 /* 881 * When only a single network is enabled, we can 882 * trigger blacklisting on the first failure. This 883 * should not be done with multiple enabled networks to 884 * avoid getting forced to move into a worse ESS on 885 * single error if there are no other BSSes of the 886 * current ESS. 887 */ 888 limit = 0; 889 } 890 if (e->count > limit) { 891 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 892 "(count=%d limit=%d)", e->count, limit); 893 return NULL; 894 } 895 } 896 897 if (bss->ssid_len == 0) { 898 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known"); 899 return NULL; 900 } 901 902 if (disallowed_bssid(wpa_s, bss->bssid)) { 903 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed"); 904 return NULL; 905 } 906 907 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) { 908 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed"); 909 return NULL; 910 } 911 912 wpa = wpa_ie_len > 0 || rsn_ie_len > 0; 913 914 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) { 915 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0); 916 int res; 917 918 if (wpas_network_disabled(wpa_s, ssid)) { 919 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled"); 920 continue; 921 } 922 923 res = wpas_temp_disabled(wpa_s, ssid); 924 if (res > 0) { 925 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled " 926 "temporarily for %d second(s)", res); 927 continue; 928 } 929 930#ifdef CONFIG_WPS 931 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) { 932 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 933 "(WPS)"); 934 continue; 935 } 936 937 if (wpa && ssid->ssid_len == 0 && 938 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 939 check_ssid = 0; 940 941 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 942 /* Only allow wildcard SSID match if an AP 943 * advertises active WPS operation that matches 944 * with our mode. */ 945 check_ssid = 1; 946 if (ssid->ssid_len == 0 && 947 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 948 check_ssid = 0; 949 } 950#endif /* CONFIG_WPS */ 951 952 if (ssid->bssid_set && ssid->ssid_len == 0 && 953 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0) 954 check_ssid = 0; 955 956 if (check_ssid && 957 (bss->ssid_len != ssid->ssid_len || 958 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) { 959 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch"); 960 continue; 961 } 962 963 if (ssid->bssid_set && 964 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) { 965 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch"); 966 continue; 967 } 968 969 /* check blacklist */ 970 if (ssid->num_bssid_blacklist && 971 addr_in_list(bss->bssid, ssid->bssid_blacklist, 972 ssid->num_bssid_blacklist)) { 973 wpa_dbg(wpa_s, MSG_DEBUG, 974 " skip - BSSID blacklisted"); 975 continue; 976 } 977 978 /* if there is a whitelist, only accept those APs */ 979 if (ssid->num_bssid_whitelist && 980 !addr_in_list(bss->bssid, ssid->bssid_whitelist, 981 ssid->num_bssid_whitelist)) { 982 wpa_dbg(wpa_s, MSG_DEBUG, 983 " skip - BSSID not in whitelist"); 984 continue; 985 } 986 987 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss)) 988 continue; 989 990 if (!osen && !wpa && 991 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 992 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) && 993 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) { 994 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network " 995 "not allowed"); 996 continue; 997 } 998 999 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) && 1000 has_wep_key(ssid)) { 1001 wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block"); 1002 continue; 1003 } 1004 1005 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) { 1006 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-OSEN network " 1007 "not allowed"); 1008 continue; 1009 } 1010 1011 if (!wpa_supplicant_match_privacy(bss, ssid)) { 1012 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy " 1013 "mismatch"); 1014 continue; 1015 } 1016 1017 if (ssid->mode != IEEE80211_MODE_MESH && !bss_is_ess(bss) && 1018 !bss_is_pbss(bss)) { 1019 wpa_dbg(wpa_s, MSG_DEBUG, 1020 " skip - not ESS, PBSS, or MBSS"); 1021 continue; 1022 } 1023 1024 if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) { 1025 wpa_dbg(wpa_s, MSG_DEBUG, " skip - PBSS mismatch (ssid %d bss %d)", 1026 ssid->pbss, bss_is_pbss(bss)); 1027 continue; 1028 } 1029 1030 if (!freq_allowed(ssid->freq_list, bss->freq)) { 1031 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not " 1032 "allowed"); 1033 continue; 1034 } 1035 1036#ifdef CONFIG_MESH 1037 if (ssid->mode == IEEE80211_MODE_MESH && ssid->frequency > 0 && 1038 ssid->frequency != bss->freq) { 1039 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not allowed (mesh)"); 1040 continue; 1041 } 1042#endif /* CONFIG_MESH */ 1043 1044 if (!rate_match(wpa_s, bss)) { 1045 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do " 1046 "not match"); 1047 continue; 1048 } 1049 1050#ifdef CONFIG_P2P 1051 if (ssid->p2p_group && 1052 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) && 1053 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) { 1054 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen"); 1055 continue; 1056 } 1057 1058 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) { 1059 struct wpabuf *p2p_ie; 1060 u8 dev_addr[ETH_ALEN]; 1061 1062 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE); 1063 if (ie == NULL) { 1064 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P element"); 1065 continue; 1066 } 1067 p2p_ie = wpa_bss_get_vendor_ie_multi( 1068 bss, P2P_IE_VENDOR_TYPE); 1069 if (p2p_ie == NULL) { 1070 wpa_dbg(wpa_s, MSG_DEBUG, " skip - could not fetch P2P element"); 1071 continue; 1072 } 1073 1074 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0 1075 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr, 1076 ETH_ALEN) != 0) { 1077 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no matching GO P2P Device Address in P2P element"); 1078 wpabuf_free(p2p_ie); 1079 continue; 1080 } 1081 wpabuf_free(p2p_ie); 1082 } 1083 1084 /* 1085 * TODO: skip the AP if its P2P IE has Group Formation 1086 * bit set in the P2P Group Capability Bitmap and we 1087 * are not in Group Formation with that device. 1088 */ 1089#endif /* CONFIG_P2P */ 1090 1091 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time)) 1092 { 1093 struct os_reltime diff; 1094 1095 os_reltime_sub(&wpa_s->scan_min_time, 1096 &bss->last_update, &diff); 1097 wpa_dbg(wpa_s, MSG_DEBUG, 1098 " skip - scan result not recent enough (%u.%06u seconds too old)", 1099 (unsigned int) diff.sec, 1100 (unsigned int) diff.usec); 1101 continue; 1102 } 1103#ifdef CONFIG_MBO 1104#ifdef CONFIG_TESTING_OPTIONS 1105 if (wpa_s->ignore_assoc_disallow) 1106 goto skip_assoc_disallow; 1107#endif /* CONFIG_TESTING_OPTIONS */ 1108 assoc_disallow = wpas_mbo_get_bss_attr( 1109 bss, MBO_ATTR_ID_ASSOC_DISALLOW); 1110 if (assoc_disallow && assoc_disallow[1] >= 1) { 1111 wpa_dbg(wpa_s, MSG_DEBUG, 1112 " skip - MBO association disallowed (reason %u)", 1113 assoc_disallow[2]); 1114 continue; 1115 } 1116 1117 if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) { 1118 wpa_dbg(wpa_s, MSG_DEBUG, 1119 " skip - MBO retry delay has not passed yet"); 1120 continue; 1121 } 1122#ifdef CONFIG_TESTING_OPTIONS 1123 skip_assoc_disallow: 1124#endif /* CONFIG_TESTING_OPTIONS */ 1125#endif /* CONFIG_MBO */ 1126 1127 /* Matching configuration found */ 1128 return ssid; 1129 } 1130 1131 /* No matching configuration found */ 1132 return NULL; 1133} 1134 1135 1136static struct wpa_bss * 1137wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, 1138 struct wpa_ssid *group, 1139 struct wpa_ssid **selected_ssid, 1140 int only_first_ssid) 1141{ 1142 unsigned int i; 1143 1144 if (only_first_ssid) 1145 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d", 1146 group->id); 1147 else 1148 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d", 1149 group->priority); 1150 1151 for (i = 0; i < wpa_s->last_scan_res_used; i++) { 1152 struct wpa_bss *bss = wpa_s->last_scan_res[i]; 1153 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group, 1154 only_first_ssid); 1155 if (!*selected_ssid) 1156 continue; 1157 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR 1158 " ssid='%s'", 1159 MAC2STR(bss->bssid), 1160 wpa_ssid_txt(bss->ssid, bss->ssid_len)); 1161 return bss; 1162 } 1163 1164 return NULL; 1165} 1166 1167 1168struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s, 1169 struct wpa_ssid **selected_ssid) 1170{ 1171 struct wpa_bss *selected = NULL; 1172 int prio; 1173 struct wpa_ssid *next_ssid = NULL; 1174 struct wpa_ssid *ssid; 1175 1176 if (wpa_s->last_scan_res == NULL || 1177 wpa_s->last_scan_res_used == 0) 1178 return NULL; /* no scan results from last update */ 1179 1180 if (wpa_s->next_ssid) { 1181 /* check that next_ssid is still valid */ 1182 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 1183 if (ssid == wpa_s->next_ssid) 1184 break; 1185 } 1186 next_ssid = ssid; 1187 wpa_s->next_ssid = NULL; 1188 } 1189 1190 while (selected == NULL) { 1191 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 1192 if (next_ssid && next_ssid->priority == 1193 wpa_s->conf->pssid[prio]->priority) { 1194 selected = wpa_supplicant_select_bss( 1195 wpa_s, next_ssid, selected_ssid, 1); 1196 if (selected) 1197 break; 1198 } 1199 selected = wpa_supplicant_select_bss( 1200 wpa_s, wpa_s->conf->pssid[prio], 1201 selected_ssid, 0); 1202 if (selected) 1203 break; 1204 } 1205 1206 if (selected == NULL && wpa_s->blacklist && 1207 !wpa_s->countermeasures) { 1208 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear " 1209 "blacklist and try again"); 1210 wpa_blacklist_clear(wpa_s); 1211 wpa_s->blacklist_cleared++; 1212 } else if (selected == NULL) 1213 break; 1214 } 1215 1216 ssid = *selected_ssid; 1217 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set && 1218 !ssid->passphrase && !ssid->ext_psk) { 1219 const char *field_name, *txt = NULL; 1220 1221 wpa_dbg(wpa_s, MSG_DEBUG, 1222 "PSK/passphrase not yet available for the selected network"); 1223 1224 wpas_notify_network_request(wpa_s, ssid, 1225 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL); 1226 1227 field_name = wpa_supplicant_ctrl_req_to_string( 1228 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt); 1229 if (field_name == NULL) 1230 return NULL; 1231 1232 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt); 1233 1234 selected = NULL; 1235 } 1236 1237 return selected; 1238} 1239 1240 1241static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s, 1242 int timeout_sec, int timeout_usec) 1243{ 1244 if (!wpa_supplicant_enabled_networks(wpa_s)) { 1245 /* 1246 * No networks are enabled; short-circuit request so 1247 * we don't wait timeout seconds before transitioning 1248 * to INACTIVE state. 1249 */ 1250 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request " 1251 "since there are no enabled networks"); 1252 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); 1253 return; 1254 } 1255 1256 wpa_s->scan_for_connection = 1; 1257 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec); 1258} 1259 1260 1261int wpa_supplicant_connect(struct wpa_supplicant *wpa_s, 1262 struct wpa_bss *selected, 1263 struct wpa_ssid *ssid) 1264{ 1265 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) { 1266 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP 1267 "PBC session overlap"); 1268 wpas_notify_wps_event_pbc_overlap(wpa_s); 1269#ifdef CONFIG_P2P 1270 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT || 1271 wpa_s->p2p_in_provisioning) { 1272 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb, 1273 wpa_s, NULL); 1274 return -1; 1275 } 1276#endif /* CONFIG_P2P */ 1277 1278#ifdef CONFIG_WPS 1279 wpas_wps_pbc_overlap(wpa_s); 1280 wpas_wps_cancel(wpa_s); 1281#endif /* CONFIG_WPS */ 1282 return -1; 1283 } 1284 1285 wpa_msg(wpa_s, MSG_DEBUG, 1286 "Considering connect request: reassociate: %d selected: " 1287 MACSTR " bssid: " MACSTR " pending: " MACSTR 1288 " wpa_state: %s ssid=%p current_ssid=%p", 1289 wpa_s->reassociate, MAC2STR(selected->bssid), 1290 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), 1291 wpa_supplicant_state_txt(wpa_s->wpa_state), 1292 ssid, wpa_s->current_ssid); 1293 1294 /* 1295 * Do not trigger new association unless the BSSID has changed or if 1296 * reassociation is requested. If we are in process of associating with 1297 * the selected BSSID, do not trigger new attempt. 1298 */ 1299 if (wpa_s->reassociate || 1300 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 && 1301 ((wpa_s->wpa_state != WPA_ASSOCIATING && 1302 wpa_s->wpa_state != WPA_AUTHENTICATING) || 1303 (!is_zero_ether_addr(wpa_s->pending_bssid) && 1304 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) != 1305 0) || 1306 (is_zero_ether_addr(wpa_s->pending_bssid) && 1307 ssid != wpa_s->current_ssid)))) { 1308 if (wpa_supplicant_scard_init(wpa_s, ssid)) { 1309 wpa_supplicant_req_new_scan(wpa_s, 10, 0); 1310 return 0; 1311 } 1312 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR, 1313 MAC2STR(selected->bssid)); 1314 wpa_supplicant_associate(wpa_s, selected, ssid); 1315 } else { 1316 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to " 1317 "connect with the selected AP"); 1318 } 1319 1320 return 0; 1321} 1322 1323 1324static struct wpa_ssid * 1325wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s) 1326{ 1327 int prio; 1328 struct wpa_ssid *ssid; 1329 1330 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 1331 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext) 1332 { 1333 if (wpas_network_disabled(wpa_s, ssid)) 1334 continue; 1335 if (ssid->mode == IEEE80211_MODE_IBSS || 1336 ssid->mode == IEEE80211_MODE_AP || 1337 ssid->mode == IEEE80211_MODE_MESH) 1338 return ssid; 1339 } 1340 } 1341 return NULL; 1342} 1343 1344 1345/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based 1346 * on BSS added and BSS changed events */ 1347static void wpa_supplicant_rsn_preauth_scan_results( 1348 struct wpa_supplicant *wpa_s) 1349{ 1350 struct wpa_bss *bss; 1351 1352 if (rsn_preauth_scan_results(wpa_s->wpa) < 0) 1353 return; 1354 1355 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1356 const u8 *ssid, *rsn; 1357 1358 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID); 1359 if (ssid == NULL) 1360 continue; 1361 1362 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); 1363 if (rsn == NULL) 1364 continue; 1365 1366 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn); 1367 } 1368 1369} 1370 1371 1372static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s, 1373 struct wpa_bss *selected, 1374 struct wpa_ssid *ssid) 1375{ 1376 struct wpa_bss *current_bss = NULL; 1377#ifndef CONFIG_NO_ROAMING 1378 int min_diff; 1379 int to_5ghz; 1380#endif /* CONFIG_NO_ROAMING */ 1381 1382 if (wpa_s->reassociate) 1383 return 1; /* explicit request to reassociate */ 1384 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1385 return 1; /* we are not associated; continue */ 1386 if (wpa_s->current_ssid == NULL) 1387 return 1; /* unknown current SSID */ 1388 if (wpa_s->current_ssid != ssid) 1389 return 1; /* different network block */ 1390 1391 if (wpas_driver_bss_selection(wpa_s)) 1392 return 0; /* Driver-based roaming */ 1393 1394 if (wpa_s->current_ssid->ssid) 1395 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid, 1396 wpa_s->current_ssid->ssid, 1397 wpa_s->current_ssid->ssid_len); 1398 if (!current_bss) 1399 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid); 1400 1401 if (!current_bss) 1402 return 1; /* current BSS not seen in scan results */ 1403 1404 if (current_bss == selected) 1405 return 0; 1406 1407 if (selected->last_update_idx > current_bss->last_update_idx) 1408 return 1; /* current BSS not seen in the last scan */ 1409 1410#ifndef CONFIG_NO_ROAMING 1411 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation"); 1412 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR 1413 " level=%d snr=%d est_throughput=%u", 1414 MAC2STR(current_bss->bssid), current_bss->level, 1415 current_bss->snr, current_bss->est_throughput); 1416 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR 1417 " level=%d snr=%d est_throughput=%u", 1418 MAC2STR(selected->bssid), selected->level, 1419 selected->snr, selected->est_throughput); 1420 1421 if (wpa_s->current_ssid->bssid_set && 1422 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) == 1423 0) { 1424 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS " 1425 "has preferred BSSID"); 1426 return 1; 1427 } 1428 1429 if (selected->est_throughput > current_bss->est_throughput + 5000) { 1430 wpa_dbg(wpa_s, MSG_DEBUG, 1431 "Allow reassociation - selected BSS has better estimated throughput"); 1432 return 1; 1433 } 1434 1435 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000; 1436 1437 if (current_bss->level < 0 && 1438 current_bss->level > selected->level + to_5ghz * 2) { 1439 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better " 1440 "signal level"); 1441 return 0; 1442 } 1443 1444 min_diff = 2; 1445 if (current_bss->level < 0) { 1446 if (current_bss->level < -85) 1447 min_diff = 1; 1448 else if (current_bss->level < -80) 1449 min_diff = 2; 1450 else if (current_bss->level < -75) 1451 min_diff = 3; 1452 else if (current_bss->level < -70) 1453 min_diff = 4; 1454 else 1455 min_diff = 5; 1456 } 1457 if (to_5ghz) { 1458 /* Make it easier to move to 5 GHz band */ 1459 if (min_diff > 2) 1460 min_diff -= 2; 1461 else 1462 min_diff = 0; 1463 } 1464 if (abs(current_bss->level - selected->level) < min_diff) { 1465 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference " 1466 "in signal level"); 1467 return 0; 1468 } 1469 1470 return 1; 1471#else /* CONFIG_NO_ROAMING */ 1472 return 0; 1473#endif /* CONFIG_NO_ROAMING */ 1474} 1475 1476 1477/* Return != 0 if no scan results could be fetched or if scan results should not 1478 * be shared with other virtual interfaces. */ 1479static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1480 union wpa_event_data *data, 1481 int own_request) 1482{ 1483 struct wpa_scan_results *scan_res = NULL; 1484 int ret = 0; 1485 int ap = 0; 1486#ifndef CONFIG_NO_RANDOM_POOL 1487 size_t i, num; 1488#endif /* CONFIG_NO_RANDOM_POOL */ 1489 1490#ifdef CONFIG_AP 1491 if (wpa_s->ap_iface) 1492 ap = 1; 1493#endif /* CONFIG_AP */ 1494 1495 wpa_supplicant_notify_scanning(wpa_s, 0); 1496 1497 scan_res = wpa_supplicant_get_scan_results(wpa_s, 1498 data ? &data->scan_info : 1499 NULL, 1); 1500 if (scan_res == NULL) { 1501 if (wpa_s->conf->ap_scan == 2 || ap || 1502 wpa_s->scan_res_handler == scan_only_handler) 1503 return -1; 1504 if (!own_request) 1505 return -1; 1506 if (data && data->scan_info.external_scan) 1507 return -1; 1508 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try " 1509 "scanning again"); 1510 wpa_supplicant_req_new_scan(wpa_s, 1, 0); 1511 ret = -1; 1512 goto scan_work_done; 1513 } 1514 1515#ifndef CONFIG_NO_RANDOM_POOL 1516 num = scan_res->num; 1517 if (num > 10) 1518 num = 10; 1519 for (i = 0; i < num; i++) { 1520 u8 buf[5]; 1521 struct wpa_scan_res *res = scan_res->res[i]; 1522 buf[0] = res->bssid[5]; 1523 buf[1] = res->qual & 0xff; 1524 buf[2] = res->noise & 0xff; 1525 buf[3] = res->level & 0xff; 1526 buf[4] = res->tsf & 0xff; 1527 random_add_randomness(buf, sizeof(buf)); 1528 } 1529#endif /* CONFIG_NO_RANDOM_POOL */ 1530 1531 if (own_request && wpa_s->scan_res_handler && 1532 !(data && data->scan_info.external_scan)) { 1533 void (*scan_res_handler)(struct wpa_supplicant *wpa_s, 1534 struct wpa_scan_results *scan_res); 1535 1536 scan_res_handler = wpa_s->scan_res_handler; 1537 wpa_s->scan_res_handler = NULL; 1538 scan_res_handler(wpa_s, scan_res); 1539 ret = -2; 1540 goto scan_work_done; 1541 } 1542 1543 if (ap) { 1544 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode"); 1545#ifdef CONFIG_AP 1546 if (wpa_s->ap_iface->scan_cb) 1547 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface); 1548#endif /* CONFIG_AP */ 1549 goto scan_work_done; 1550 } 1551 1552 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)", 1553 wpa_s->own_scan_running, 1554 data ? data->scan_info.external_scan : 0); 1555 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ && 1556 wpa_s->manual_scan_use_id && wpa_s->own_scan_running && 1557 own_request && !(data && data->scan_info.external_scan)) { 1558 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u", 1559 wpa_s->manual_scan_id); 1560 wpa_s->manual_scan_use_id = 0; 1561 } else { 1562 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); 1563 } 1564 wpas_notify_scan_results(wpa_s); 1565 1566 wpas_notify_scan_done(wpa_s, 1); 1567 1568 if (data && data->scan_info.external_scan) { 1569 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection"); 1570 wpa_scan_results_free(scan_res); 1571 return 0; 1572 } 1573 1574 if (wnm_scan_process(wpa_s, 1) > 0) 1575 goto scan_work_done; 1576 1577 if (sme_proc_obss_scan(wpa_s) > 0) 1578 goto scan_work_done; 1579 1580 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) 1581 goto scan_work_done; 1582 1583 if (autoscan_notify_scan(wpa_s, scan_res)) 1584 goto scan_work_done; 1585 1586 if (wpa_s->disconnected) { 1587 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 1588 goto scan_work_done; 1589 } 1590 1591 if (!wpas_driver_bss_selection(wpa_s) && 1592 bgscan_notify_scan(wpa_s, scan_res) == 1) 1593 goto scan_work_done; 1594 1595 wpas_wps_update_ap_info(wpa_s, scan_res); 1596 1597 if (wpa_s->wpa_state >= WPA_AUTHENTICATING && 1598 wpa_s->wpa_state < WPA_COMPLETED) 1599 goto scan_work_done; 1600 1601 wpa_scan_results_free(scan_res); 1602 1603 if (own_request && wpa_s->scan_work) { 1604 struct wpa_radio_work *work = wpa_s->scan_work; 1605 wpa_s->scan_work = NULL; 1606 radio_work_done(work); 1607 } 1608 1609 return wpas_select_network_from_last_scan(wpa_s, 1, own_request); 1610 1611scan_work_done: 1612 wpa_scan_results_free(scan_res); 1613 if (own_request && wpa_s->scan_work) { 1614 struct wpa_radio_work *work = wpa_s->scan_work; 1615 wpa_s->scan_work = NULL; 1616 radio_work_done(work); 1617 } 1618 return ret; 1619} 1620 1621 1622static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s, 1623 int new_scan, int own_request) 1624{ 1625 struct wpa_bss *selected; 1626 struct wpa_ssid *ssid = NULL; 1627 int time_to_reenable = wpas_reenabled_network_time(wpa_s); 1628 1629 if (time_to_reenable > 0) { 1630 wpa_dbg(wpa_s, MSG_DEBUG, 1631 "Postpone network selection by %d seconds since all networks are disabled", 1632 time_to_reenable); 1633 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL); 1634 eloop_register_timeout(time_to_reenable, 0, 1635 wpas_network_reenabled, wpa_s, NULL); 1636 return 0; 1637 } 1638 1639 if (wpa_s->p2p_mgmt) 1640 return 0; /* no normal connection on p2p_mgmt interface */ 1641 1642 selected = wpa_supplicant_pick_network(wpa_s, &ssid); 1643 1644#ifdef CONFIG_MESH 1645 if (wpa_s->ifmsh) { 1646 wpa_msg(wpa_s, MSG_INFO, 1647 "Avoiding join because we already joined a mesh group"); 1648 return 0; 1649 } 1650#endif /* CONFIG_MESH */ 1651 1652 if (selected) { 1653 int skip; 1654 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid); 1655 if (skip) { 1656 if (new_scan) 1657 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1658 return 0; 1659 } 1660 1661 if (ssid != wpa_s->current_ssid && 1662 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 1663 wpa_s->own_disconnect_req = 1; 1664 wpa_supplicant_deauthenticate( 1665 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1666 } 1667 1668 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) { 1669 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed"); 1670 return -1; 1671 } 1672 if (new_scan) 1673 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1674 /* 1675 * Do not notify other virtual radios of scan results since we do not 1676 * want them to start other associations at the same time. 1677 */ 1678 return 1; 1679 } else { 1680 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found"); 1681 ssid = wpa_supplicant_pick_new_network(wpa_s); 1682 if (ssid) { 1683 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network"); 1684 wpa_supplicant_associate(wpa_s, NULL, ssid); 1685 if (new_scan) 1686 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1687 } else if (own_request) { 1688 /* 1689 * No SSID found. If SCAN results are as a result of 1690 * own scan request and not due to a scan request on 1691 * another shared interface, try another scan. 1692 */ 1693 int timeout_sec = wpa_s->scan_interval; 1694 int timeout_usec = 0; 1695#ifdef CONFIG_P2P 1696 int res; 1697 1698 res = wpas_p2p_scan_no_go_seen(wpa_s); 1699 if (res == 2) 1700 return 2; 1701 if (res == 1) 1702 return 0; 1703 1704 if (wpa_s->p2p_in_provisioning || 1705 wpa_s->show_group_started || 1706 wpa_s->p2p_in_invitation) { 1707 /* 1708 * Use shorter wait during P2P Provisioning 1709 * state and during P2P join-a-group operation 1710 * to speed up group formation. 1711 */ 1712 timeout_sec = 0; 1713 timeout_usec = 250000; 1714 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1715 timeout_usec); 1716 return 0; 1717 } 1718#endif /* CONFIG_P2P */ 1719#ifdef CONFIG_INTERWORKING 1720 if (wpa_s->conf->auto_interworking && 1721 wpa_s->conf->interworking && 1722 wpa_s->conf->cred) { 1723 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: " 1724 "start ANQP fetch since no matching " 1725 "networks found"); 1726 wpa_s->network_select = 1; 1727 wpa_s->auto_network_select = 1; 1728 interworking_start_fetch_anqp(wpa_s); 1729 return 1; 1730 } 1731#endif /* CONFIG_INTERWORKING */ 1732#ifdef CONFIG_WPS 1733 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) { 1734 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing"); 1735 timeout_sec = 0; 1736 timeout_usec = 500000; 1737 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1738 timeout_usec); 1739 return 0; 1740 } 1741#endif /* CONFIG_WPS */ 1742 if (wpa_supplicant_req_sched_scan(wpa_s)) 1743 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1744 timeout_usec); 1745 1746 wpa_msg_ctrl(wpa_s, MSG_INFO, 1747 WPA_EVENT_NETWORK_NOT_FOUND); 1748 } 1749 } 1750 return 0; 1751} 1752 1753 1754static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1755 union wpa_event_data *data) 1756{ 1757 struct wpa_supplicant *ifs; 1758 int res; 1759 1760 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1); 1761 if (res == 2) { 1762 /* 1763 * Interface may have been removed, so must not dereference 1764 * wpa_s after this. 1765 */ 1766 return 1; 1767 } 1768 if (res != 0) { 1769 /* 1770 * If no scan results could be fetched, then no need to 1771 * notify those interfaces that did not actually request 1772 * this scan. Similarly, if scan results started a new operation on this 1773 * interface, do not notify other interfaces to avoid concurrent 1774 * operations during a connection attempt. 1775 */ 1776 return 0; 1777 } 1778 1779 /* 1780 * Check other interfaces to see if they share the same radio. If 1781 * so, they get updated with this same scan info. 1782 */ 1783 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, 1784 radio_list) { 1785 if (ifs != wpa_s) { 1786 wpa_printf(MSG_DEBUG, "%s: Updating scan results from " 1787 "sibling", ifs->ifname); 1788 _wpa_supplicant_event_scan_results(ifs, data, 0); 1789 } 1790 } 1791 1792 return 0; 1793} 1794 1795#endif /* CONFIG_NO_SCAN_PROCESSING */ 1796 1797 1798int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s) 1799{ 1800#ifdef CONFIG_NO_SCAN_PROCESSING 1801 return -1; 1802#else /* CONFIG_NO_SCAN_PROCESSING */ 1803 struct os_reltime now; 1804 1805 if (wpa_s->last_scan_res_used == 0) 1806 return -1; 1807 1808 os_get_reltime(&now); 1809 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) { 1810 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results"); 1811 return -1; 1812 } 1813 1814 return wpas_select_network_from_last_scan(wpa_s, 0, 1); 1815#endif /* CONFIG_NO_SCAN_PROCESSING */ 1816} 1817 1818#ifdef CONFIG_WNM 1819 1820static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx) 1821{ 1822 struct wpa_supplicant *wpa_s = eloop_ctx; 1823 1824 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1825 return; 1826 1827 if (!wpa_s->no_keep_alive) { 1828 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR, 1829 MAC2STR(wpa_s->bssid)); 1830 /* TODO: could skip this if normal data traffic has been sent */ 1831 /* TODO: Consider using some more appropriate data frame for 1832 * this */ 1833 if (wpa_s->l2) 1834 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, 1835 (u8 *) "", 0); 1836 } 1837 1838#ifdef CONFIG_SME 1839 if (wpa_s->sme.bss_max_idle_period) { 1840 unsigned int msec; 1841 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */ 1842 if (msec > 100) 1843 msec -= 100; 1844 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1845 wnm_bss_keep_alive, wpa_s, NULL); 1846 } 1847#endif /* CONFIG_SME */ 1848} 1849 1850 1851static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s, 1852 const u8 *ies, size_t ies_len) 1853{ 1854 struct ieee802_11_elems elems; 1855 1856 if (ies == NULL) 1857 return; 1858 1859 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 1860 return; 1861 1862#ifdef CONFIG_SME 1863 if (elems.bss_max_idle_period) { 1864 unsigned int msec; 1865 wpa_s->sme.bss_max_idle_period = 1866 WPA_GET_LE16(elems.bss_max_idle_period); 1867 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 " 1868 "TU)%s", wpa_s->sme.bss_max_idle_period, 1869 (elems.bss_max_idle_period[2] & 0x01) ? 1870 " (protected keep-live required)" : ""); 1871 if (wpa_s->sme.bss_max_idle_period == 0) 1872 wpa_s->sme.bss_max_idle_period = 1; 1873 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) { 1874 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1875 /* msec times 1000 */ 1876 msec = wpa_s->sme.bss_max_idle_period * 1024; 1877 if (msec > 100) 1878 msec -= 100; 1879 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1880 wnm_bss_keep_alive, wpa_s, 1881 NULL); 1882 } 1883 } 1884#endif /* CONFIG_SME */ 1885} 1886 1887#endif /* CONFIG_WNM */ 1888 1889 1890void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s) 1891{ 1892#ifdef CONFIG_WNM 1893 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1894#endif /* CONFIG_WNM */ 1895} 1896 1897 1898#ifdef CONFIG_INTERWORKING 1899 1900static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map, 1901 size_t len) 1902{ 1903 int res; 1904 1905 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len); 1906 res = wpa_drv_set_qos_map(wpa_s, qos_map, len); 1907 if (res) { 1908 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver"); 1909 } 1910 1911 return res; 1912} 1913 1914 1915static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s, 1916 const u8 *ies, size_t ies_len) 1917{ 1918 struct ieee802_11_elems elems; 1919 1920 if (ies == NULL) 1921 return; 1922 1923 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 1924 return; 1925 1926 if (elems.qos_map_set) { 1927 wpas_qos_map_set(wpa_s, elems.qos_map_set, 1928 elems.qos_map_set_len); 1929 } 1930} 1931 1932#endif /* CONFIG_INTERWORKING */ 1933 1934 1935#ifdef CONFIG_FST 1936static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s, 1937 const u8 *ie, size_t ie_len) 1938{ 1939 struct mb_ies_info mb_ies; 1940 1941 if (!ie || !ie_len || !wpa_s->fst) 1942 return -ENOENT; 1943 1944 os_memset(&mb_ies, 0, sizeof(mb_ies)); 1945 1946 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) { 1947 size_t len; 1948 1949 len = 2 + ie[1]; 1950 if (len > ie_len) { 1951 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found", 1952 ie, ie_len); 1953 break; 1954 } 1955 1956 if (ie[0] == WLAN_EID_MULTI_BAND) { 1957 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found", 1958 (unsigned int) len); 1959 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2; 1960 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2; 1961 mb_ies.nof_ies++; 1962 } 1963 1964 ie_len -= len; 1965 ie += len; 1966 } 1967 1968 if (mb_ies.nof_ies > 0) { 1969 wpabuf_free(wpa_s->received_mb_ies); 1970 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies); 1971 return 0; 1972 } 1973 1974 return -ENOENT; 1975} 1976#endif /* CONFIG_FST */ 1977 1978 1979static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s, 1980 union wpa_event_data *data) 1981{ 1982 int l, len, found = 0, wpa_found, rsn_found; 1983 const u8 *p; 1984#ifdef CONFIG_IEEE80211R 1985 u8 bssid[ETH_ALEN]; 1986#endif /* CONFIG_IEEE80211R */ 1987 1988 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); 1989 if (data->assoc_info.req_ies) 1990 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, 1991 data->assoc_info.req_ies_len); 1992 if (data->assoc_info.resp_ies) { 1993 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, 1994 data->assoc_info.resp_ies_len); 1995#ifdef CONFIG_TDLS 1996 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies, 1997 data->assoc_info.resp_ies_len); 1998#endif /* CONFIG_TDLS */ 1999#ifdef CONFIG_WNM 2000 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 2001 data->assoc_info.resp_ies_len); 2002#endif /* CONFIG_WNM */ 2003#ifdef CONFIG_INTERWORKING 2004 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 2005 data->assoc_info.resp_ies_len); 2006#endif /* CONFIG_INTERWORKING */ 2007 } 2008 if (data->assoc_info.beacon_ies) 2009 wpa_hexdump(MSG_DEBUG, "beacon_ies", 2010 data->assoc_info.beacon_ies, 2011 data->assoc_info.beacon_ies_len); 2012 if (data->assoc_info.freq) 2013 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", 2014 data->assoc_info.freq); 2015 2016 p = data->assoc_info.req_ies; 2017 l = data->assoc_info.req_ies_len; 2018 2019 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ 2020 while (p && l >= 2) { 2021 len = p[1] + 2; 2022 if (len > l) { 2023 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 2024 p, l); 2025 break; 2026 } 2027 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 2028 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || 2029 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 && 2030 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) || 2031 (p[0] == WLAN_EID_RSN && p[1] >= 2)) { 2032 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) 2033 break; 2034 found = 1; 2035 wpa_find_assoc_pmkid(wpa_s); 2036 break; 2037 } 2038 l -= len; 2039 p += len; 2040 } 2041 if (!found && data->assoc_info.req_ies) 2042 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); 2043 2044#ifdef CONFIG_IEEE80211R 2045#ifdef CONFIG_SME 2046 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { 2047 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 2048 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 2049 data->assoc_info.resp_ies, 2050 data->assoc_info.resp_ies_len, 2051 bssid) < 0) { 2052 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 2053 "Reassociation Response failed"); 2054 wpa_supplicant_deauthenticate( 2055 wpa_s, WLAN_REASON_INVALID_IE); 2056 return -1; 2057 } 2058 } 2059 2060 p = data->assoc_info.resp_ies; 2061 l = data->assoc_info.resp_ies_len; 2062 2063#ifdef CONFIG_WPS_STRICT 2064 if (p && wpa_s->current_ssid && 2065 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { 2066 struct wpabuf *wps; 2067 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); 2068 if (wps == NULL) { 2069 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " 2070 "include WPS IE in (Re)Association Response"); 2071 return -1; 2072 } 2073 2074 if (wps_validate_assoc_resp(wps) < 0) { 2075 wpabuf_free(wps); 2076 wpa_supplicant_deauthenticate( 2077 wpa_s, WLAN_REASON_INVALID_IE); 2078 return -1; 2079 } 2080 wpabuf_free(wps); 2081 } 2082#endif /* CONFIG_WPS_STRICT */ 2083 2084 /* Go through the IEs and make a copy of the MDIE, if present. */ 2085 while (p && l >= 2) { 2086 len = p[1] + 2; 2087 if (len > l) { 2088 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 2089 p, l); 2090 break; 2091 } 2092 if (p[0] == WLAN_EID_MOBILITY_DOMAIN && 2093 p[1] >= MOBILITY_DOMAIN_ID_LEN) { 2094 wpa_s->sme.ft_used = 1; 2095 os_memcpy(wpa_s->sme.mobility_domain, p + 2, 2096 MOBILITY_DOMAIN_ID_LEN); 2097 break; 2098 } 2099 l -= len; 2100 p += len; 2101 } 2102#endif /* CONFIG_SME */ 2103 2104 /* Process FT when SME is in the driver */ 2105 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 2106 wpa_ft_is_completed(wpa_s->wpa)) { 2107 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 2108 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 2109 data->assoc_info.resp_ies, 2110 data->assoc_info.resp_ies_len, 2111 bssid) < 0) { 2112 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 2113 "Reassociation Response failed"); 2114 wpa_supplicant_deauthenticate( 2115 wpa_s, WLAN_REASON_INVALID_IE); 2116 return -1; 2117 } 2118 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done"); 2119 } 2120 2121 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, 2122 data->assoc_info.resp_ies_len); 2123#endif /* CONFIG_IEEE80211R */ 2124 2125 /* WPA/RSN IE from Beacon/ProbeResp */ 2126 p = data->assoc_info.beacon_ies; 2127 l = data->assoc_info.beacon_ies_len; 2128 2129 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. 2130 */ 2131 wpa_found = rsn_found = 0; 2132 while (p && l >= 2) { 2133 len = p[1] + 2; 2134 if (len > l) { 2135 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", 2136 p, l); 2137 break; 2138 } 2139 if (!wpa_found && 2140 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 2141 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { 2142 wpa_found = 1; 2143 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); 2144 } 2145 2146 if (!rsn_found && 2147 p[0] == WLAN_EID_RSN && p[1] >= 2) { 2148 rsn_found = 1; 2149 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); 2150 } 2151 2152 l -= len; 2153 p += len; 2154 } 2155 2156 if (!wpa_found && data->assoc_info.beacon_ies) 2157 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); 2158 if (!rsn_found && data->assoc_info.beacon_ies) 2159 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); 2160 if (wpa_found || rsn_found) 2161 wpa_s->ap_ies_from_associnfo = 1; 2162 2163 if (wpa_s->assoc_freq && data->assoc_info.freq && 2164 wpa_s->assoc_freq != data->assoc_info.freq) { 2165 wpa_printf(MSG_DEBUG, "Operating frequency changed from " 2166 "%u to %u MHz", 2167 wpa_s->assoc_freq, data->assoc_info.freq); 2168 wpa_supplicant_update_scan_results(wpa_s); 2169 } 2170 2171 wpa_s->assoc_freq = data->assoc_info.freq; 2172 2173 return 0; 2174} 2175 2176 2177static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s) 2178{ 2179 const u8 *bss_wpa = NULL, *bss_rsn = NULL; 2180 2181 if (!wpa_s->current_bss || !wpa_s->current_ssid) 2182 return -1; 2183 2184 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt)) 2185 return 0; 2186 2187 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss, 2188 WPA_IE_VENDOR_TYPE); 2189 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN); 2190 2191 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, 2192 bss_wpa ? 2 + bss_wpa[1] : 0) || 2193 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, 2194 bss_rsn ? 2 + bss_rsn[1] : 0)) 2195 return -1; 2196 2197 return 0; 2198} 2199 2200 2201static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s, 2202 union wpa_event_data *data) 2203{ 2204#ifdef CONFIG_FST 2205 struct assoc_info *ai = data ? &data->assoc_info : NULL; 2206 struct wpa_bss *bss = wpa_s->current_bss; 2207 const u8 *ieprb, *iebcn; 2208 2209 wpabuf_free(wpa_s->received_mb_ies); 2210 wpa_s->received_mb_ies = NULL; 2211 2212 if (ai && 2213 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) { 2214 wpa_printf(MSG_DEBUG, 2215 "FST: MB IEs updated from Association Response frame"); 2216 return; 2217 } 2218 2219 if (ai && 2220 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) { 2221 wpa_printf(MSG_DEBUG, 2222 "FST: MB IEs updated from association event Beacon IEs"); 2223 return; 2224 } 2225 2226 if (!bss) 2227 return; 2228 2229 ieprb = (const u8 *) (bss + 1); 2230 iebcn = ieprb + bss->ie_len; 2231 2232 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len)) 2233 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE"); 2234 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len)) 2235 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE"); 2236#endif /* CONFIG_FST */ 2237} 2238 2239 2240static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, 2241 union wpa_event_data *data) 2242{ 2243 u8 bssid[ETH_ALEN]; 2244 int ft_completed, already_authorized; 2245 int new_bss = 0; 2246 2247#ifdef CONFIG_AP 2248 if (wpa_s->ap_iface) { 2249 if (!data) 2250 return; 2251 hostapd_notif_assoc(wpa_s->ap_iface->bss[0], 2252 data->assoc_info.addr, 2253 data->assoc_info.req_ies, 2254 data->assoc_info.req_ies_len, 2255 data->assoc_info.reassoc); 2256 return; 2257 } 2258#endif /* CONFIG_AP */ 2259 2260 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL); 2261 2262 ft_completed = wpa_ft_is_completed(wpa_s->wpa); 2263 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) 2264 return; 2265 2266 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { 2267 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID"); 2268 wpa_supplicant_deauthenticate( 2269 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2270 return; 2271 } 2272 2273 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); 2274 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) { 2275 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" 2276 MACSTR, MAC2STR(bssid)); 2277 new_bss = 1; 2278 random_add_randomness(bssid, ETH_ALEN); 2279 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); 2280 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 2281 wpas_notify_bssid_changed(wpa_s); 2282 2283 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { 2284 wpa_clear_keys(wpa_s, bssid); 2285 } 2286 if (wpa_supplicant_select_config(wpa_s) < 0) { 2287 wpa_supplicant_deauthenticate( 2288 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2289 return; 2290 } 2291 } 2292 2293 if (wpa_s->conf->ap_scan == 1 && 2294 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) { 2295 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss) 2296 wpa_msg(wpa_s, MSG_WARNING, 2297 "WPA/RSN IEs not updated"); 2298 } 2299 2300 wpas_fst_update_mb_assoc(wpa_s, data); 2301 2302#ifdef CONFIG_SME 2303 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); 2304 wpa_s->sme.prev_bssid_set = 1; 2305 wpa_s->sme.last_unprot_disconnect.sec = 0; 2306#endif /* CONFIG_SME */ 2307 2308 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); 2309 if (wpa_s->current_ssid) { 2310 /* When using scanning (ap_scan=1), SIM PC/SC interface can be 2311 * initialized before association, but for other modes, 2312 * initialize PC/SC here, if the current configuration needs 2313 * smartcard or SIM/USIM. */ 2314 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); 2315 } 2316 wpa_sm_notify_assoc(wpa_s->wpa, bssid); 2317 if (wpa_s->l2) 2318 l2_packet_notify_auth_start(wpa_s->l2); 2319 2320 already_authorized = data && data->assoc_info.authorized; 2321 2322 /* 2323 * Set portEnabled first to FALSE in order to get EAP state machine out 2324 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE 2325 * state machine may transit to AUTHENTICATING state based on obsolete 2326 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to 2327 * AUTHENTICATED without ever giving chance to EAP state machine to 2328 * reset the state. 2329 */ 2330 if (!ft_completed && !already_authorized) { 2331 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 2332 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 2333 } 2334 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed || 2335 already_authorized) 2336 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 2337 /* 802.1X::portControl = Auto */ 2338 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); 2339 wpa_s->eapol_received = 0; 2340 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 2341 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || 2342 (wpa_s->current_ssid && 2343 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { 2344 if (wpa_s->current_ssid && 2345 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE && 2346 (wpa_s->drv_flags & 2347 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) { 2348 /* 2349 * Set the key after having received joined-IBSS event 2350 * from the driver. 2351 */ 2352 wpa_supplicant_set_wpa_none_key(wpa_s, 2353 wpa_s->current_ssid); 2354 } 2355 wpa_supplicant_cancel_auth_timeout(wpa_s); 2356 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 2357 } else if (!ft_completed) { 2358 /* Timeout for receiving the first EAPOL packet */ 2359 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); 2360 } 2361 wpa_supplicant_cancel_scan(wpa_s); 2362 2363 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 2364 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { 2365 /* 2366 * We are done; the driver will take care of RSN 4-way 2367 * handshake. 2368 */ 2369 wpa_supplicant_cancel_auth_timeout(wpa_s); 2370 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 2371 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 2372 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 2373 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 2374 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { 2375 /* 2376 * The driver will take care of RSN 4-way handshake, so we need 2377 * to allow EAPOL supplicant to complete its work without 2378 * waiting for WPA supplicant. 2379 */ 2380 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 2381 } else if (ft_completed) { 2382 /* 2383 * FT protocol completed - make sure EAPOL state machine ends 2384 * up in authenticated. 2385 */ 2386 wpa_supplicant_cancel_auth_timeout(wpa_s); 2387 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 2388 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 2389 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 2390 } 2391 2392 wpa_s->last_eapol_matches_bssid = 0; 2393 2394 if (wpa_s->pending_eapol_rx) { 2395 struct os_reltime now, age; 2396 os_get_reltime(&now); 2397 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age); 2398 if (age.sec == 0 && age.usec < 100000 && 2399 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == 2400 0) { 2401 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " 2402 "frame that was received just before " 2403 "association notification"); 2404 wpa_supplicant_rx_eapol( 2405 wpa_s, wpa_s->pending_eapol_rx_src, 2406 wpabuf_head(wpa_s->pending_eapol_rx), 2407 wpabuf_len(wpa_s->pending_eapol_rx)); 2408 } 2409 wpabuf_free(wpa_s->pending_eapol_rx); 2410 wpa_s->pending_eapol_rx = NULL; 2411 } 2412 2413 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 2414 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 2415 wpa_s->current_ssid && 2416 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) { 2417 /* Set static WEP keys again */ 2418 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); 2419 } 2420 2421#ifdef CONFIG_IBSS_RSN 2422 if (wpa_s->current_ssid && 2423 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 2424 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && 2425 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE && 2426 wpa_s->ibss_rsn == NULL) { 2427 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s, wpa_s->current_ssid); 2428 if (!wpa_s->ibss_rsn) { 2429 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN"); 2430 wpa_supplicant_deauthenticate( 2431 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2432 return; 2433 } 2434 2435 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk); 2436 } 2437#endif /* CONFIG_IBSS_RSN */ 2438 2439 wpas_wps_notify_assoc(wpa_s, bssid); 2440 2441 if (data) { 2442 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies, 2443 data->assoc_info.resp_ies_len, 2444 &data->assoc_info.wmm_params); 2445 2446 if (wpa_s->reassoc_same_bss) 2447 wmm_ac_restore_tspecs(wpa_s); 2448 } 2449} 2450 2451 2452static int disconnect_reason_recoverable(u16 reason_code) 2453{ 2454 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY || 2455 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA || 2456 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA; 2457} 2458 2459 2460static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s, 2461 u16 reason_code, 2462 int locally_generated) 2463{ 2464 const u8 *bssid; 2465 2466 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 2467 /* 2468 * At least Host AP driver and a Prism3 card seemed to be 2469 * generating streams of disconnected events when configuring 2470 * IBSS for WPA-None. Ignore them for now. 2471 */ 2472 return; 2473 } 2474 2475 bssid = wpa_s->bssid; 2476 if (is_zero_ether_addr(bssid)) 2477 bssid = wpa_s->pending_bssid; 2478 2479 if (!is_zero_ether_addr(bssid) || 2480 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 2481 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR 2482 " reason=%d%s", 2483 MAC2STR(bssid), reason_code, 2484 locally_generated ? " locally_generated=1" : ""); 2485 } 2486} 2487 2488 2489static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code, 2490 int locally_generated) 2491{ 2492 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE || 2493 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 2494 return 0; /* Not in 4-way handshake with PSK */ 2495 2496 /* 2497 * It looks like connection was lost while trying to go through PSK 2498 * 4-way handshake. Filter out known disconnection cases that are caused 2499 * by something else than PSK mismatch to avoid confusing reports. 2500 */ 2501 2502 if (locally_generated) { 2503 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS) 2504 return 0; 2505 } 2506 2507 return 1; 2508} 2509 2510 2511static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s, 2512 u16 reason_code, 2513 int locally_generated) 2514{ 2515 const u8 *bssid; 2516 int authenticating; 2517 u8 prev_pending_bssid[ETH_ALEN]; 2518 struct wpa_bss *fast_reconnect = NULL; 2519 struct wpa_ssid *fast_reconnect_ssid = NULL; 2520 struct wpa_ssid *last_ssid; 2521 struct wpa_bss *curr = NULL; 2522 2523 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING; 2524 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN); 2525 2526 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 2527 /* 2528 * At least Host AP driver and a Prism3 card seemed to be 2529 * generating streams of disconnected events when configuring 2530 * IBSS for WPA-None. Ignore them for now. 2531 */ 2532 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in " 2533 "IBSS/WPA-None mode"); 2534 return; 2535 } 2536 2537 if (!wpa_s->disconnected && wpa_s->wpa_state >= WPA_AUTHENTICATING && 2538 reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY && 2539 locally_generated) 2540 /* 2541 * Remove the inactive AP (which is probably out of range) from 2542 * the BSS list after marking disassociation. In particular 2543 * mac80211-based drivers use the 2544 * WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in 2545 * locally generated disconnection events for cases where the 2546 * AP does not reply anymore. 2547 */ 2548 curr = wpa_s->current_bss; 2549 2550 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) { 2551 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - " 2552 "pre-shared key may be incorrect"); 2553 if (wpas_p2p_4way_hs_failed(wpa_s) > 0) 2554 return; /* P2P group removed */ 2555 wpas_auth_failed(wpa_s, "WRONG_KEY"); 2556 } 2557 if (!wpa_s->disconnected && 2558 (!wpa_s->auto_reconnect_disabled || 2559 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS || 2560 wpas_wps_searching(wpa_s) || 2561 wpas_wps_reenable_networks_pending(wpa_s))) { 2562 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to " 2563 "reconnect (wps=%d/%d wpa_state=%d)", 2564 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS, 2565 wpas_wps_searching(wpa_s), 2566 wpa_s->wpa_state); 2567 if (wpa_s->wpa_state == WPA_COMPLETED && 2568 wpa_s->current_ssid && 2569 wpa_s->current_ssid->mode == WPAS_MODE_INFRA && 2570 !locally_generated && 2571 disconnect_reason_recoverable(reason_code)) { 2572 /* 2573 * It looks like the AP has dropped association with 2574 * us, but could allow us to get back in. Try to 2575 * reconnect to the same BSS without full scan to save 2576 * time for some common cases. 2577 */ 2578 fast_reconnect = wpa_s->current_bss; 2579 fast_reconnect_ssid = wpa_s->current_ssid; 2580 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) 2581 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2582 else 2583 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new " 2584 "immediate scan"); 2585 } else { 2586 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not " 2587 "try to re-connect"); 2588 wpa_s->reassociate = 0; 2589 wpa_s->disconnected = 1; 2590 if (!wpa_s->pno) 2591 wpa_supplicant_cancel_sched_scan(wpa_s); 2592 } 2593 bssid = wpa_s->bssid; 2594 if (is_zero_ether_addr(bssid)) 2595 bssid = wpa_s->pending_bssid; 2596 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 2597 wpas_connection_failed(wpa_s, bssid); 2598 wpa_sm_notify_disassoc(wpa_s->wpa); 2599 if (locally_generated) 2600 wpa_s->disconnect_reason = -reason_code; 2601 else 2602 wpa_s->disconnect_reason = reason_code; 2603 wpas_notify_disconnect_reason(wpa_s); 2604 if (wpa_supplicant_dynamic_keys(wpa_s)) { 2605 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys"); 2606 wpa_clear_keys(wpa_s, wpa_s->bssid); 2607 } 2608 last_ssid = wpa_s->current_ssid; 2609 wpa_supplicant_mark_disassoc(wpa_s); 2610 2611 if (curr) 2612 wpa_bss_remove(wpa_s, curr, "Connection to AP lost"); 2613 2614 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) { 2615 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); 2616 wpa_s->current_ssid = last_ssid; 2617 } 2618 2619 if (fast_reconnect && 2620 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) && 2621 !disallowed_bssid(wpa_s, fast_reconnect->bssid) && 2622 !disallowed_ssid(wpa_s, fast_reconnect->ssid, 2623 fast_reconnect->ssid_len) && 2624 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) && 2625 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) { 2626#ifndef CONFIG_NO_SCAN_PROCESSING 2627 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS"); 2628 if (wpa_supplicant_connect(wpa_s, fast_reconnect, 2629 fast_reconnect_ssid) < 0) { 2630 /* Recover through full scan */ 2631 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2632 } 2633#endif /* CONFIG_NO_SCAN_PROCESSING */ 2634 } else if (fast_reconnect) { 2635 /* 2636 * Could not reconnect to the same BSS due to network being 2637 * disabled. Use a new scan to match the alternative behavior 2638 * above, i.e., to continue automatic reconnection attempt in a 2639 * way that enforces disabled network rules. 2640 */ 2641 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2642 } 2643} 2644 2645 2646#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2647void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx) 2648{ 2649 struct wpa_supplicant *wpa_s = eloop_ctx; 2650 2651 if (!wpa_s->pending_mic_error_report) 2652 return; 2653 2654 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report"); 2655 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise); 2656 wpa_s->pending_mic_error_report = 0; 2657} 2658#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2659 2660 2661static void 2662wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s, 2663 union wpa_event_data *data) 2664{ 2665 int pairwise; 2666 struct os_reltime t; 2667 2668 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); 2669 pairwise = (data && data->michael_mic_failure.unicast); 2670 os_get_reltime(&t); 2671 if ((wpa_s->last_michael_mic_error.sec && 2672 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) || 2673 wpa_s->pending_mic_error_report) { 2674 if (wpa_s->pending_mic_error_report) { 2675 /* 2676 * Send the pending MIC error report immediately since 2677 * we are going to start countermeasures and AP better 2678 * do the same. 2679 */ 2680 wpa_sm_key_request(wpa_s->wpa, 1, 2681 wpa_s->pending_mic_error_pairwise); 2682 } 2683 2684 /* Send the new MIC error report immediately since we are going 2685 * to start countermeasures and AP better do the same. 2686 */ 2687 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2688 2689 /* initialize countermeasures */ 2690 wpa_s->countermeasures = 1; 2691 2692 wpa_blacklist_add(wpa_s, wpa_s->bssid); 2693 2694 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started"); 2695 2696 /* 2697 * Need to wait for completion of request frame. We do not get 2698 * any callback for the message completion, so just wait a 2699 * short while and hope for the best. */ 2700 os_sleep(0, 10000); 2701 2702 wpa_drv_set_countermeasures(wpa_s, 1); 2703 wpa_supplicant_deauthenticate(wpa_s, 2704 WLAN_REASON_MICHAEL_MIC_FAILURE); 2705 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, 2706 wpa_s, NULL); 2707 eloop_register_timeout(60, 0, 2708 wpa_supplicant_stop_countermeasures, 2709 wpa_s, NULL); 2710 /* TODO: mark the AP rejected for 60 second. STA is 2711 * allowed to associate with another AP.. */ 2712 } else { 2713#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2714 if (wpa_s->mic_errors_seen) { 2715 /* 2716 * Reduce the effectiveness of Michael MIC error 2717 * reports as a means for attacking against TKIP if 2718 * more than one MIC failure is noticed with the same 2719 * PTK. We delay the transmission of the reports by a 2720 * random time between 0 and 60 seconds in order to 2721 * force the attacker wait 60 seconds before getting 2722 * the information on whether a frame resulted in a MIC 2723 * failure. 2724 */ 2725 u8 rval[4]; 2726 int sec; 2727 2728 if (os_get_random(rval, sizeof(rval)) < 0) 2729 sec = os_random() % 60; 2730 else 2731 sec = WPA_GET_BE32(rval) % 60; 2732 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error " 2733 "report %d seconds", sec); 2734 wpa_s->pending_mic_error_report = 1; 2735 wpa_s->pending_mic_error_pairwise = pairwise; 2736 eloop_cancel_timeout( 2737 wpa_supplicant_delayed_mic_error_report, 2738 wpa_s, NULL); 2739 eloop_register_timeout( 2740 sec, os_random() % 1000000, 2741 wpa_supplicant_delayed_mic_error_report, 2742 wpa_s, NULL); 2743 } else { 2744 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2745 } 2746#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2747 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2748#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2749 } 2750 wpa_s->last_michael_mic_error = t; 2751 wpa_s->mic_errors_seen++; 2752} 2753 2754 2755#ifdef CONFIG_TERMINATE_ONLASTIF 2756static int any_interfaces(struct wpa_supplicant *head) 2757{ 2758 struct wpa_supplicant *wpa_s; 2759 2760 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) 2761 if (!wpa_s->interface_removed) 2762 return 1; 2763 return 0; 2764} 2765#endif /* CONFIG_TERMINATE_ONLASTIF */ 2766 2767 2768static void 2769wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, 2770 union wpa_event_data *data) 2771{ 2772 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) 2773 return; 2774 2775 switch (data->interface_status.ievent) { 2776 case EVENT_INTERFACE_ADDED: 2777 if (!wpa_s->interface_removed) 2778 break; 2779 wpa_s->interface_removed = 0; 2780 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); 2781 if (wpa_supplicant_driver_init(wpa_s) < 0) { 2782 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " 2783 "driver after interface was added"); 2784 } 2785 2786#ifdef CONFIG_P2P 2787 if (!wpa_s->global->p2p && 2788 !wpa_s->global->p2p_disabled && 2789 !wpa_s->conf->p2p_disabled && 2790 (wpa_s->drv_flags & 2791 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 2792 wpas_p2p_add_p2pdev_interface( 2793 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) { 2794 wpa_printf(MSG_INFO, 2795 "P2P: Failed to enable P2P Device interface"); 2796 /* Try to continue without. P2P will be disabled. */ 2797 } 2798#endif /* CONFIG_P2P */ 2799 2800 break; 2801 case EVENT_INTERFACE_REMOVED: 2802 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed"); 2803 wpa_s->interface_removed = 1; 2804 wpa_supplicant_mark_disassoc(wpa_s); 2805 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2806 l2_packet_deinit(wpa_s->l2); 2807 wpa_s->l2 = NULL; 2808 2809#ifdef CONFIG_P2P 2810 if (wpa_s->global->p2p && 2811 wpa_s->global->p2p_init_wpa_s->parent == wpa_s && 2812 (wpa_s->drv_flags & 2813 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) { 2814 wpa_dbg(wpa_s, MSG_DEBUG, 2815 "Removing P2P Device interface"); 2816 wpa_supplicant_remove_iface( 2817 wpa_s->global, wpa_s->global->p2p_init_wpa_s, 2818 0); 2819 wpa_s->global->p2p_init_wpa_s = NULL; 2820 } 2821#endif /* CONFIG_P2P */ 2822 2823#ifdef CONFIG_MATCH_IFACE 2824 if (wpa_s->matched) { 2825 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0); 2826 break; 2827 } 2828#endif /* CONFIG_MATCH_IFACE */ 2829 2830#ifdef CONFIG_TERMINATE_ONLASTIF 2831 /* check if last interface */ 2832 if (!any_interfaces(wpa_s->global->ifaces)) 2833 eloop_terminate(); 2834#endif /* CONFIG_TERMINATE_ONLASTIF */ 2835 break; 2836 } 2837} 2838 2839 2840#ifdef CONFIG_PEERKEY 2841static void 2842wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s, 2843 union wpa_event_data *data) 2844{ 2845 if (data == NULL) 2846 return; 2847 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer); 2848} 2849#endif /* CONFIG_PEERKEY */ 2850 2851 2852#ifdef CONFIG_TDLS 2853static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s, 2854 union wpa_event_data *data) 2855{ 2856 if (data == NULL) 2857 return; 2858 switch (data->tdls.oper) { 2859 case TDLS_REQUEST_SETUP: 2860 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer); 2861 if (wpa_tdls_is_external_setup(wpa_s->wpa)) 2862 wpa_tdls_start(wpa_s->wpa, data->tdls.peer); 2863 else 2864 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer); 2865 break; 2866 case TDLS_REQUEST_TEARDOWN: 2867 if (wpa_tdls_is_external_setup(wpa_s->wpa)) 2868 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer, 2869 data->tdls.reason_code); 2870 else 2871 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN, 2872 data->tdls.peer); 2873 break; 2874 case TDLS_REQUEST_DISCOVER: 2875 wpa_tdls_send_discovery_request(wpa_s->wpa, 2876 data->tdls.peer); 2877 break; 2878 } 2879} 2880#endif /* CONFIG_TDLS */ 2881 2882 2883#ifdef CONFIG_WNM 2884static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s, 2885 union wpa_event_data *data) 2886{ 2887 if (data == NULL) 2888 return; 2889 switch (data->wnm.oper) { 2890 case WNM_OPER_SLEEP: 2891 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request " 2892 "(action=%d, intval=%d)", 2893 data->wnm.sleep_action, data->wnm.sleep_intval); 2894 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action, 2895 data->wnm.sleep_intval, NULL); 2896 break; 2897 } 2898} 2899#endif /* CONFIG_WNM */ 2900 2901 2902#ifdef CONFIG_IEEE80211R 2903static void 2904wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s, 2905 union wpa_event_data *data) 2906{ 2907 if (data == NULL) 2908 return; 2909 2910 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies, 2911 data->ft_ies.ies_len, 2912 data->ft_ies.ft_action, 2913 data->ft_ies.target_ap, 2914 data->ft_ies.ric_ies, 2915 data->ft_ies.ric_ies_len) < 0) { 2916 /* TODO: prevent MLME/driver from trying to associate? */ 2917 } 2918} 2919#endif /* CONFIG_IEEE80211R */ 2920 2921 2922#ifdef CONFIG_IBSS_RSN 2923static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s, 2924 union wpa_event_data *data) 2925{ 2926 struct wpa_ssid *ssid; 2927 if (wpa_s->wpa_state < WPA_ASSOCIATED) 2928 return; 2929 if (data == NULL) 2930 return; 2931 ssid = wpa_s->current_ssid; 2932 if (ssid == NULL) 2933 return; 2934 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 2935 return; 2936 2937 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer); 2938} 2939 2940 2941static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s, 2942 union wpa_event_data *data) 2943{ 2944 struct wpa_ssid *ssid = wpa_s->current_ssid; 2945 2946 if (ssid == NULL) 2947 return; 2948 2949 /* check if the ssid is correctly configured as IBSS/RSN */ 2950 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 2951 return; 2952 2953 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame, 2954 data->rx_mgmt.frame_len); 2955} 2956#endif /* CONFIG_IBSS_RSN */ 2957 2958 2959#ifdef CONFIG_IEEE80211R 2960static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, 2961 size_t len) 2962{ 2963 const u8 *sta_addr, *target_ap_addr; 2964 u16 status; 2965 2966 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); 2967 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) 2968 return; /* only SME case supported for now */ 2969 if (len < 1 + 2 * ETH_ALEN + 2) 2970 return; 2971 if (data[0] != 2) 2972 return; /* Only FT Action Response is supported for now */ 2973 sta_addr = data + 1; 2974 target_ap_addr = data + 1 + ETH_ALEN; 2975 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); 2976 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " 2977 MACSTR " TargetAP " MACSTR " status %u", 2978 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); 2979 2980 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { 2981 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR 2982 " in FT Action Response", MAC2STR(sta_addr)); 2983 return; 2984 } 2985 2986 if (status) { 2987 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " 2988 "failure (status code %d)", status); 2989 /* TODO: report error to FT code(?) */ 2990 return; 2991 } 2992 2993 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, 2994 len - (1 + 2 * ETH_ALEN + 2), 1, 2995 target_ap_addr, NULL, 0) < 0) 2996 return; 2997 2998#ifdef CONFIG_SME 2999 { 3000 struct wpa_bss *bss; 3001 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); 3002 if (bss) 3003 wpa_s->sme.freq = bss->freq; 3004 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; 3005 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, 3006 WLAN_AUTH_FT); 3007 } 3008#endif /* CONFIG_SME */ 3009} 3010#endif /* CONFIG_IEEE80211R */ 3011 3012 3013static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, 3014 struct unprot_deauth *e) 3015{ 3016#ifdef CONFIG_IEEE80211W 3017 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " 3018 "dropped: " MACSTR " -> " MACSTR 3019 " (reason code %u)", 3020 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 3021 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 3022#endif /* CONFIG_IEEE80211W */ 3023} 3024 3025 3026static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, 3027 struct unprot_disassoc *e) 3028{ 3029#ifdef CONFIG_IEEE80211W 3030 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " 3031 "dropped: " MACSTR " -> " MACSTR 3032 " (reason code %u)", 3033 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 3034 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 3035#endif /* CONFIG_IEEE80211W */ 3036} 3037 3038 3039static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr, 3040 u16 reason_code, int locally_generated, 3041 const u8 *ie, size_t ie_len, int deauth) 3042{ 3043#ifdef CONFIG_AP 3044 if (wpa_s->ap_iface && addr) { 3045 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr); 3046 return; 3047 } 3048 3049 if (wpa_s->ap_iface) { 3050 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode"); 3051 return; 3052 } 3053#endif /* CONFIG_AP */ 3054 3055 if (!locally_generated) 3056 wpa_s->own_disconnect_req = 0; 3057 3058 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated); 3059 3060 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED || 3061 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || 3062 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) && 3063 eapol_sm_failed(wpa_s->eapol))) && 3064 !wpa_s->eap_expected_failure)) 3065 wpas_auth_failed(wpa_s, "AUTH_FAILED"); 3066 3067#ifdef CONFIG_P2P 3068 if (deauth && reason_code > 0) { 3069 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len, 3070 locally_generated) > 0) { 3071 /* 3072 * The interface was removed, so cannot continue 3073 * processing any additional operations after this. 3074 */ 3075 return; 3076 } 3077 } 3078#endif /* CONFIG_P2P */ 3079 3080 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code, 3081 locally_generated); 3082} 3083 3084 3085static void wpas_event_disassoc(struct wpa_supplicant *wpa_s, 3086 struct disassoc_info *info) 3087{ 3088 u16 reason_code = 0; 3089 int locally_generated = 0; 3090 const u8 *addr = NULL; 3091 const u8 *ie = NULL; 3092 size_t ie_len = 0; 3093 3094 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); 3095 3096 if (info) { 3097 addr = info->addr; 3098 ie = info->ie; 3099 ie_len = info->ie_len; 3100 reason_code = info->reason_code; 3101 locally_generated = info->locally_generated; 3102 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code, 3103 locally_generated ? " (locally generated)" : ""); 3104 if (addr) 3105 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 3106 MAC2STR(addr)); 3107 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", 3108 ie, ie_len); 3109 } 3110 3111#ifdef CONFIG_AP 3112 if (wpa_s->ap_iface && info && info->addr) { 3113 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr); 3114 return; 3115 } 3116 3117 if (wpa_s->ap_iface) { 3118 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode"); 3119 return; 3120 } 3121#endif /* CONFIG_AP */ 3122 3123#ifdef CONFIG_P2P 3124 if (info) { 3125 wpas_p2p_disassoc_notif( 3126 wpa_s, info->addr, reason_code, info->ie, info->ie_len, 3127 locally_generated); 3128 } 3129#endif /* CONFIG_P2P */ 3130 3131 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 3132 sme_event_disassoc(wpa_s, info); 3133 3134 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated, 3135 ie, ie_len, 0); 3136} 3137 3138 3139static void wpas_event_deauth(struct wpa_supplicant *wpa_s, 3140 struct deauth_info *info) 3141{ 3142 u16 reason_code = 0; 3143 int locally_generated = 0; 3144 const u8 *addr = NULL; 3145 const u8 *ie = NULL; 3146 size_t ie_len = 0; 3147 3148 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification"); 3149 3150 if (info) { 3151 addr = info->addr; 3152 ie = info->ie; 3153 ie_len = info->ie_len; 3154 reason_code = info->reason_code; 3155 locally_generated = info->locally_generated; 3156 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 3157 reason_code, 3158 locally_generated ? " (locally generated)" : ""); 3159 if (addr) { 3160 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 3161 MAC2STR(addr)); 3162 } 3163 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)", 3164 ie, ie_len); 3165 } 3166 3167 wpa_reset_ft_completed(wpa_s->wpa); 3168 3169 wpas_event_disconnect(wpa_s, addr, reason_code, 3170 locally_generated, ie, ie_len, 1); 3171} 3172 3173 3174static const char * reg_init_str(enum reg_change_initiator init) 3175{ 3176 switch (init) { 3177 case REGDOM_SET_BY_CORE: 3178 return "CORE"; 3179 case REGDOM_SET_BY_USER: 3180 return "USER"; 3181 case REGDOM_SET_BY_DRIVER: 3182 return "DRIVER"; 3183 case REGDOM_SET_BY_COUNTRY_IE: 3184 return "COUNTRY_IE"; 3185 case REGDOM_BEACON_HINT: 3186 return "BEACON_HINT"; 3187 } 3188 return "?"; 3189} 3190 3191 3192static const char * reg_type_str(enum reg_type type) 3193{ 3194 switch (type) { 3195 case REGDOM_TYPE_UNKNOWN: 3196 return "UNKNOWN"; 3197 case REGDOM_TYPE_COUNTRY: 3198 return "COUNTRY"; 3199 case REGDOM_TYPE_WORLD: 3200 return "WORLD"; 3201 case REGDOM_TYPE_CUSTOM_WORLD: 3202 return "CUSTOM_WORLD"; 3203 case REGDOM_TYPE_INTERSECTION: 3204 return "INTERSECTION"; 3205 } 3206 return "?"; 3207} 3208 3209 3210static void wpa_supplicant_update_channel_list( 3211 struct wpa_supplicant *wpa_s, struct channel_list_changed *info) 3212{ 3213 struct wpa_supplicant *ifs; 3214 3215 /* 3216 * To allow backwards compatibility with higher level layers that 3217 * assumed the REGDOM_CHANGE event is sent over the initially added 3218 * interface. Find the highest parent of this interface and use it to 3219 * send the event. 3220 */ 3221 for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent) 3222 ; 3223 3224 wpa_msg(ifs, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s", 3225 reg_init_str(info->initiator), reg_type_str(info->type), 3226 info->alpha2[0] ? " alpha2=" : "", 3227 info->alpha2[0] ? info->alpha2 : ""); 3228 3229 if (wpa_s->drv_priv == NULL) 3230 return; /* Ignore event during drv initialization */ 3231 3232 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, 3233 radio_list) { 3234 wpa_printf(MSG_DEBUG, "%s: Updating hw mode", 3235 ifs->ifname); 3236 free_hw_features(ifs); 3237 ifs->hw.modes = wpa_drv_get_hw_feature_data( 3238 ifs, &ifs->hw.num_modes, &ifs->hw.flags); 3239 3240 /* Restart PNO/sched_scan with updated channel list */ 3241 if (ifs->pno) { 3242 wpas_stop_pno(ifs); 3243 wpas_start_pno(ifs); 3244 } else if (ifs->sched_scanning && !ifs->pno_sched_pending) { 3245 wpa_dbg(ifs, MSG_DEBUG, 3246 "Channel list changed - restart sched_scan"); 3247 wpas_scan_restart_sched_scan(ifs); 3248 } 3249 } 3250 3251 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER); 3252} 3253 3254 3255static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s, 3256 const u8 *frame, size_t len, int freq, 3257 int rssi) 3258{ 3259 const struct ieee80211_mgmt *mgmt; 3260 const u8 *payload; 3261 size_t plen; 3262 u8 category; 3263 3264 if (len < IEEE80211_HDRLEN + 2) 3265 return; 3266 3267 mgmt = (const struct ieee80211_mgmt *) frame; 3268 payload = frame + IEEE80211_HDRLEN; 3269 category = *payload++; 3270 plen = len - IEEE80211_HDRLEN - 1; 3271 3272 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR 3273 " Category=%u DataLen=%d freq=%d MHz", 3274 MAC2STR(mgmt->sa), category, (int) plen, freq); 3275 3276 if (category == WLAN_ACTION_WMM) { 3277 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen); 3278 return; 3279 } 3280 3281#ifdef CONFIG_IEEE80211R 3282 if (category == WLAN_ACTION_FT) { 3283 ft_rx_action(wpa_s, payload, plen); 3284 return; 3285 } 3286#endif /* CONFIG_IEEE80211R */ 3287 3288#ifdef CONFIG_IEEE80211W 3289#ifdef CONFIG_SME 3290 if (category == WLAN_ACTION_SA_QUERY) { 3291 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen); 3292 return; 3293 } 3294#endif /* CONFIG_SME */ 3295#endif /* CONFIG_IEEE80211W */ 3296 3297#ifdef CONFIG_WNM 3298 if (mgmt->u.action.category == WLAN_ACTION_WNM) { 3299 ieee802_11_rx_wnm_action(wpa_s, mgmt, len); 3300 return; 3301 } 3302#endif /* CONFIG_WNM */ 3303 3304#ifdef CONFIG_GAS 3305 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC || 3306 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) && 3307 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid, 3308 mgmt->u.action.category, 3309 payload, plen, freq) == 0) 3310 return; 3311#endif /* CONFIG_GAS */ 3312 3313#ifdef CONFIG_TDLS 3314 if (category == WLAN_ACTION_PUBLIC && plen >= 4 && 3315 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) { 3316 wpa_dbg(wpa_s, MSG_DEBUG, 3317 "TDLS: Received Discovery Response from " MACSTR, 3318 MAC2STR(mgmt->sa)); 3319 return; 3320 } 3321#endif /* CONFIG_TDLS */ 3322 3323#ifdef CONFIG_INTERWORKING 3324 if (category == WLAN_ACTION_QOS && plen >= 1 && 3325 payload[0] == QOS_QOS_MAP_CONFIG) { 3326 const u8 *pos = payload + 1; 3327 size_t qlen = plen - 1; 3328 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from " 3329 MACSTR, MAC2STR(mgmt->sa)); 3330 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 && 3331 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET && 3332 pos[1] <= qlen - 2 && pos[1] >= 16) 3333 wpas_qos_map_set(wpa_s, pos + 2, pos[1]); 3334 return; 3335 } 3336#endif /* CONFIG_INTERWORKING */ 3337 3338 if (category == WLAN_ACTION_RADIO_MEASUREMENT && 3339 payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) { 3340 wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa, 3341 payload + 1, 3342 plen - 1); 3343 return; 3344 } 3345 3346 if (category == WLAN_ACTION_RADIO_MEASUREMENT && 3347 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) { 3348 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1); 3349 return; 3350 } 3351 3352 if (category == WLAN_ACTION_RADIO_MEASUREMENT && 3353 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) { 3354 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa, 3355 payload + 1, plen - 1, 3356 rssi); 3357 return; 3358 } 3359 3360#ifdef CONFIG_FST 3361 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) { 3362 fst_rx_action(wpa_s->fst, mgmt, len); 3363 return; 3364 } 3365#endif /* CONFIG_FST */ 3366 3367 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 3368 category, payload, plen, freq); 3369 if (wpa_s->ifmsh) 3370 mesh_mpm_action_rx(wpa_s, mgmt, len); 3371} 3372 3373 3374static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s, 3375 union wpa_event_data *event) 3376{ 3377 struct wpa_freq_range_list *list; 3378 char *str = NULL; 3379 3380 list = &event->freq_range; 3381 3382 if (list->num) 3383 str = freq_range_list_str(list); 3384 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s", 3385 str ? str : ""); 3386 3387#ifdef CONFIG_P2P 3388 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) { 3389 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range", 3390 __func__); 3391 } else { 3392 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event"); 3393 3394 /* 3395 * The update channel flow will also take care of moving a GO 3396 * from the unsafe frequency if needed. 3397 */ 3398 wpas_p2p_update_channel_list(wpa_s, 3399 WPAS_P2P_CHANNEL_UPDATE_AVOID); 3400 } 3401#endif /* CONFIG_P2P */ 3402 3403 os_free(str); 3404} 3405 3406 3407static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s, 3408 union wpa_event_data *data) 3409{ 3410 wpa_dbg(wpa_s, MSG_DEBUG, 3411 "Connection authorized by device, previous state %d", 3412 wpa_s->wpa_state); 3413 if (wpa_s->wpa_state == WPA_ASSOCIATED) { 3414 wpa_supplicant_cancel_auth_timeout(wpa_s); 3415 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 3416 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 3417 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 3418 } 3419 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr); 3420 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck, 3421 data->assoc_info.ptk_kck_len, 3422 data->assoc_info.ptk_kek, 3423 data->assoc_info.ptk_kek_len); 3424} 3425 3426 3427void wpa_supplicant_event(void *ctx, enum wpa_event_type event, 3428 union wpa_event_data *data) 3429{ 3430 struct wpa_supplicant *wpa_s = ctx; 3431 int resched; 3432 3433 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && 3434 event != EVENT_INTERFACE_ENABLED && 3435 event != EVENT_INTERFACE_STATUS && 3436 event != EVENT_SCAN_RESULTS && 3437 event != EVENT_SCHED_SCAN_STOPPED) { 3438 wpa_dbg(wpa_s, MSG_DEBUG, 3439 "Ignore event %s (%d) while interface is disabled", 3440 event_to_string(event), event); 3441 return; 3442 } 3443 3444#ifndef CONFIG_NO_STDOUT_DEBUG 3445{ 3446 int level = MSG_DEBUG; 3447 3448 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) { 3449 const struct ieee80211_hdr *hdr; 3450 u16 fc; 3451 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame; 3452 fc = le_to_host16(hdr->frame_control); 3453 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 3454 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) 3455 level = MSG_EXCESSIVE; 3456 } 3457 3458 wpa_dbg(wpa_s, level, "Event %s (%d) received", 3459 event_to_string(event), event); 3460} 3461#endif /* CONFIG_NO_STDOUT_DEBUG */ 3462 3463 switch (event) { 3464 case EVENT_AUTH: 3465#ifdef CONFIG_FST 3466 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies, 3467 data->auth.ies_len)) 3468 wpa_printf(MSG_DEBUG, 3469 "FST: MB IEs updated from auth IE"); 3470#endif /* CONFIG_FST */ 3471 sme_event_auth(wpa_s, data); 3472 break; 3473 case EVENT_ASSOC: 3474#ifdef CONFIG_TESTING_OPTIONS 3475 if (wpa_s->ignore_auth_resp) { 3476 wpa_printf(MSG_INFO, 3477 "EVENT_ASSOC - ignore_auth_resp active!"); 3478 break; 3479 } 3480#endif /* CONFIG_TESTING_OPTIONS */ 3481 wpa_supplicant_event_assoc(wpa_s, data); 3482 if (data && data->assoc_info.authorized) 3483 wpa_supplicant_event_assoc_auth(wpa_s, data); 3484 if (data) { 3485 wpa_msg(wpa_s, MSG_INFO, 3486 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u", 3487 data->assoc_info.subnet_status); 3488 } 3489 break; 3490 case EVENT_DISASSOC: 3491 wpas_event_disassoc(wpa_s, 3492 data ? &data->disassoc_info : NULL); 3493 break; 3494 case EVENT_DEAUTH: 3495#ifdef CONFIG_TESTING_OPTIONS 3496 if (wpa_s->ignore_auth_resp) { 3497 wpa_printf(MSG_INFO, 3498 "EVENT_DEAUTH - ignore_auth_resp active!"); 3499 break; 3500 } 3501#endif /* CONFIG_TESTING_OPTIONS */ 3502 wpas_event_deauth(wpa_s, 3503 data ? &data->deauth_info : NULL); 3504 break; 3505 case EVENT_MICHAEL_MIC_FAILURE: 3506 wpa_supplicant_event_michael_mic_failure(wpa_s, data); 3507 break; 3508#ifndef CONFIG_NO_SCAN_PROCESSING 3509 case EVENT_SCAN_STARTED: 3510 if (wpa_s->own_scan_requested || 3511 (data && !data->scan_info.external_scan)) { 3512 struct os_reltime diff; 3513 3514 os_get_reltime(&wpa_s->scan_start_time); 3515 os_reltime_sub(&wpa_s->scan_start_time, 3516 &wpa_s->scan_trigger_time, &diff); 3517 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds", 3518 diff.sec, diff.usec); 3519 wpa_s->own_scan_requested = 0; 3520 wpa_s->own_scan_running = 1; 3521 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ && 3522 wpa_s->manual_scan_use_id) { 3523 wpa_msg_ctrl(wpa_s, MSG_INFO, 3524 WPA_EVENT_SCAN_STARTED "id=%u", 3525 wpa_s->manual_scan_id); 3526 } else { 3527 wpa_msg_ctrl(wpa_s, MSG_INFO, 3528 WPA_EVENT_SCAN_STARTED); 3529 } 3530 } else { 3531 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan"); 3532 wpa_s->radio->external_scan_running = 1; 3533 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED); 3534 } 3535 break; 3536 case EVENT_SCAN_RESULTS: 3537 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 3538 wpa_s->scan_res_handler = NULL; 3539 wpa_s->own_scan_running = 0; 3540 wpa_s->radio->external_scan_running = 0; 3541 wpa_s->last_scan_req = NORMAL_SCAN_REQ; 3542 break; 3543 } 3544 3545 if (!(data && data->scan_info.external_scan) && 3546 os_reltime_initialized(&wpa_s->scan_start_time)) { 3547 struct os_reltime now, diff; 3548 os_get_reltime(&now); 3549 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff); 3550 wpa_s->scan_start_time.sec = 0; 3551 wpa_s->scan_start_time.usec = 0; 3552 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds", 3553 diff.sec, diff.usec); 3554 } 3555 if (wpa_supplicant_event_scan_results(wpa_s, data)) 3556 break; /* interface may have been removed */ 3557 if (!(data && data->scan_info.external_scan)) 3558 wpa_s->own_scan_running = 0; 3559 if (data && data->scan_info.nl_scan_event) 3560 wpa_s->radio->external_scan_running = 0; 3561 radio_work_check_next(wpa_s); 3562 break; 3563#endif /* CONFIG_NO_SCAN_PROCESSING */ 3564 case EVENT_ASSOCINFO: 3565 wpa_supplicant_event_associnfo(wpa_s, data); 3566 break; 3567 case EVENT_INTERFACE_STATUS: 3568 wpa_supplicant_event_interface_status(wpa_s, data); 3569 break; 3570 case EVENT_PMKID_CANDIDATE: 3571 wpa_supplicant_event_pmkid_candidate(wpa_s, data); 3572 break; 3573#ifdef CONFIG_PEERKEY 3574 case EVENT_STKSTART: 3575 wpa_supplicant_event_stkstart(wpa_s, data); 3576 break; 3577#endif /* CONFIG_PEERKEY */ 3578#ifdef CONFIG_TDLS 3579 case EVENT_TDLS: 3580 wpa_supplicant_event_tdls(wpa_s, data); 3581 break; 3582#endif /* CONFIG_TDLS */ 3583#ifdef CONFIG_WNM 3584 case EVENT_WNM: 3585 wpa_supplicant_event_wnm(wpa_s, data); 3586 break; 3587#endif /* CONFIG_WNM */ 3588#ifdef CONFIG_IEEE80211R 3589 case EVENT_FT_RESPONSE: 3590 wpa_supplicant_event_ft_response(wpa_s, data); 3591 break; 3592#endif /* CONFIG_IEEE80211R */ 3593#ifdef CONFIG_IBSS_RSN 3594 case EVENT_IBSS_RSN_START: 3595 wpa_supplicant_event_ibss_rsn_start(wpa_s, data); 3596 break; 3597#endif /* CONFIG_IBSS_RSN */ 3598 case EVENT_ASSOC_REJECT: 3599 if (data->assoc_reject.bssid) 3600 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 3601 "bssid=" MACSTR " status_code=%u%s", 3602 MAC2STR(data->assoc_reject.bssid), 3603 data->assoc_reject.status_code, 3604 data->assoc_reject.timed_out ? " timeout" : ""); 3605 else 3606 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 3607 "status_code=%u%s", 3608 data->assoc_reject.status_code, 3609 data->assoc_reject.timed_out ? " timeout" : ""); 3610 wpa_s->assoc_status_code = data->assoc_reject.status_code; 3611 wpas_notify_assoc_status_code(wpa_s); 3612 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 3613 sme_event_assoc_reject(wpa_s, data); 3614 else { 3615 const u8 *bssid = data->assoc_reject.bssid; 3616 if (bssid == NULL || is_zero_ether_addr(bssid)) 3617 bssid = wpa_s->pending_bssid; 3618 wpas_connection_failed(wpa_s, bssid); 3619 wpa_supplicant_mark_disassoc(wpa_s); 3620 } 3621 break; 3622 case EVENT_AUTH_TIMED_OUT: 3623 /* It is possible to get this event from earlier connection */ 3624 if (wpa_s->current_ssid && 3625 wpa_s->current_ssid->mode == WPAS_MODE_MESH) { 3626 wpa_dbg(wpa_s, MSG_DEBUG, 3627 "Ignore AUTH_TIMED_OUT in mesh configuration"); 3628 break; 3629 } 3630 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 3631 sme_event_auth_timed_out(wpa_s, data); 3632 break; 3633 case EVENT_ASSOC_TIMED_OUT: 3634 /* It is possible to get this event from earlier connection */ 3635 if (wpa_s->current_ssid && 3636 wpa_s->current_ssid->mode == WPAS_MODE_MESH) { 3637 wpa_dbg(wpa_s, MSG_DEBUG, 3638 "Ignore ASSOC_TIMED_OUT in mesh configuration"); 3639 break; 3640 } 3641 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 3642 sme_event_assoc_timed_out(wpa_s, data); 3643 break; 3644 case EVENT_TX_STATUS: 3645 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR 3646 " type=%d stype=%d", 3647 MAC2STR(data->tx_status.dst), 3648 data->tx_status.type, data->tx_status.stype); 3649#ifdef CONFIG_AP 3650 if (wpa_s->ap_iface == NULL) { 3651#ifdef CONFIG_OFFCHANNEL 3652 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 3653 data->tx_status.stype == WLAN_FC_STYPE_ACTION) 3654 offchannel_send_action_tx_status( 3655 wpa_s, data->tx_status.dst, 3656 data->tx_status.data, 3657 data->tx_status.data_len, 3658 data->tx_status.ack ? 3659 OFFCHANNEL_SEND_ACTION_SUCCESS : 3660 OFFCHANNEL_SEND_ACTION_NO_ACK); 3661#endif /* CONFIG_OFFCHANNEL */ 3662 break; 3663 } 3664#endif /* CONFIG_AP */ 3665#ifdef CONFIG_OFFCHANNEL 3666 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" 3667 MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst)); 3668 /* 3669 * Catch TX status events for Action frames we sent via group 3670 * interface in GO mode, or via standalone AP interface. 3671 * Note, wpa_s->p2pdev will be the same as wpa_s->parent, 3672 * except when the primary interface is used as a GO interface 3673 * (for drivers which do not have group interface concurrency) 3674 */ 3675 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 3676 data->tx_status.stype == WLAN_FC_STYPE_ACTION && 3677 os_memcmp(wpa_s->p2pdev->pending_action_dst, 3678 data->tx_status.dst, ETH_ALEN) == 0) { 3679 offchannel_send_action_tx_status( 3680 wpa_s->p2pdev, data->tx_status.dst, 3681 data->tx_status.data, 3682 data->tx_status.data_len, 3683 data->tx_status.ack ? 3684 OFFCHANNEL_SEND_ACTION_SUCCESS : 3685 OFFCHANNEL_SEND_ACTION_NO_ACK); 3686 break; 3687 } 3688#endif /* CONFIG_OFFCHANNEL */ 3689#ifdef CONFIG_AP 3690 switch (data->tx_status.type) { 3691 case WLAN_FC_TYPE_MGMT: 3692 ap_mgmt_tx_cb(wpa_s, data->tx_status.data, 3693 data->tx_status.data_len, 3694 data->tx_status.stype, 3695 data->tx_status.ack); 3696 break; 3697 case WLAN_FC_TYPE_DATA: 3698 ap_tx_status(wpa_s, data->tx_status.dst, 3699 data->tx_status.data, 3700 data->tx_status.data_len, 3701 data->tx_status.ack); 3702 break; 3703 } 3704#endif /* CONFIG_AP */ 3705 break; 3706#ifdef CONFIG_AP 3707 case EVENT_EAPOL_TX_STATUS: 3708 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst, 3709 data->eapol_tx_status.data, 3710 data->eapol_tx_status.data_len, 3711 data->eapol_tx_status.ack); 3712 break; 3713 case EVENT_DRIVER_CLIENT_POLL_OK: 3714 ap_client_poll_ok(wpa_s, data->client_poll.addr); 3715 break; 3716 case EVENT_RX_FROM_UNKNOWN: 3717 if (wpa_s->ap_iface == NULL) 3718 break; 3719 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr, 3720 data->rx_from_unknown.wds); 3721 break; 3722 case EVENT_CH_SWITCH: 3723 if (!data || !wpa_s->current_ssid) 3724 break; 3725 3726 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CHANNEL_SWITCH 3727 "freq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d", 3728 data->ch_switch.freq, 3729 data->ch_switch.ht_enabled, 3730 data->ch_switch.ch_offset, 3731 channel_width_to_string(data->ch_switch.ch_width), 3732 data->ch_switch.cf1, 3733 data->ch_switch.cf2); 3734 3735 wpa_s->assoc_freq = data->ch_switch.freq; 3736 wpa_s->current_ssid->frequency = data->ch_switch.freq; 3737 3738 if (wpa_s->current_ssid->mode == WPAS_MODE_AP || 3739 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO || 3740 wpa_s->current_ssid->mode == 3741 WPAS_MODE_P2P_GROUP_FORMATION) { 3742 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq, 3743 data->ch_switch.ht_enabled, 3744 data->ch_switch.ch_offset, 3745 data->ch_switch.ch_width, 3746 data->ch_switch.cf1, 3747 data->ch_switch.cf2); 3748 } 3749 3750 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS); 3751 break; 3752#ifdef NEED_AP_MLME 3753 case EVENT_DFS_RADAR_DETECTED: 3754 if (data) 3755 wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event); 3756 break; 3757 case EVENT_DFS_CAC_STARTED: 3758 if (data) 3759 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event); 3760 break; 3761 case EVENT_DFS_CAC_FINISHED: 3762 if (data) 3763 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event); 3764 break; 3765 case EVENT_DFS_CAC_ABORTED: 3766 if (data) 3767 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event); 3768 break; 3769 case EVENT_DFS_NOP_FINISHED: 3770 if (data) 3771 wpas_event_dfs_cac_nop_finished(wpa_s, 3772 &data->dfs_event); 3773 break; 3774#endif /* NEED_AP_MLME */ 3775#endif /* CONFIG_AP */ 3776 case EVENT_RX_MGMT: { 3777 u16 fc, stype; 3778 const struct ieee80211_mgmt *mgmt; 3779 3780#ifdef CONFIG_TESTING_OPTIONS 3781 if (wpa_s->ext_mgmt_frame_handling) { 3782 struct rx_mgmt *rx = &data->rx_mgmt; 3783 size_t hex_len = 2 * rx->frame_len + 1; 3784 char *hex = os_malloc(hex_len); 3785 if (hex) { 3786 wpa_snprintf_hex(hex, hex_len, 3787 rx->frame, rx->frame_len); 3788 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s", 3789 rx->freq, rx->datarate, rx->ssi_signal, 3790 hex); 3791 os_free(hex); 3792 } 3793 break; 3794 } 3795#endif /* CONFIG_TESTING_OPTIONS */ 3796 3797 mgmt = (const struct ieee80211_mgmt *) 3798 data->rx_mgmt.frame; 3799 fc = le_to_host16(mgmt->frame_control); 3800 stype = WLAN_FC_GET_STYPE(fc); 3801 3802#ifdef CONFIG_AP 3803 if (wpa_s->ap_iface == NULL) { 3804#endif /* CONFIG_AP */ 3805#ifdef CONFIG_P2P 3806 if (stype == WLAN_FC_STYPE_PROBE_REQ && 3807 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) { 3808 const u8 *src = mgmt->sa; 3809 const u8 *ie; 3810 size_t ie_len; 3811 3812 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN; 3813 ie_len = data->rx_mgmt.frame_len - 3814 IEEE80211_HDRLEN; 3815 wpas_p2p_probe_req_rx( 3816 wpa_s, src, mgmt->da, 3817 mgmt->bssid, ie, ie_len, 3818 data->rx_mgmt.freq, 3819 data->rx_mgmt.ssi_signal); 3820 break; 3821 } 3822#endif /* CONFIG_P2P */ 3823#ifdef CONFIG_IBSS_RSN 3824 if (wpa_s->current_ssid && 3825 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 3826 stype == WLAN_FC_STYPE_AUTH && 3827 data->rx_mgmt.frame_len >= 30) { 3828 wpa_supplicant_event_ibss_auth(wpa_s, data); 3829 break; 3830 } 3831#endif /* CONFIG_IBSS_RSN */ 3832 3833 if (stype == WLAN_FC_STYPE_ACTION) { 3834 wpas_event_rx_mgmt_action( 3835 wpa_s, data->rx_mgmt.frame, 3836 data->rx_mgmt.frame_len, 3837 data->rx_mgmt.freq, 3838 data->rx_mgmt.ssi_signal); 3839 break; 3840 } 3841 3842 if (wpa_s->ifmsh) { 3843 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt); 3844 break; 3845 } 3846 3847 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " 3848 "management frame in non-AP mode"); 3849 break; 3850#ifdef CONFIG_AP 3851 } 3852 3853 if (stype == WLAN_FC_STYPE_PROBE_REQ && 3854 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) { 3855 const u8 *ie; 3856 size_t ie_len; 3857 3858 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN; 3859 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN; 3860 3861 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da, 3862 mgmt->bssid, ie, ie_len, 3863 data->rx_mgmt.ssi_signal); 3864 } 3865 3866 ap_mgmt_rx(wpa_s, &data->rx_mgmt); 3867#endif /* CONFIG_AP */ 3868 break; 3869 } 3870 case EVENT_RX_PROBE_REQ: 3871 if (data->rx_probe_req.sa == NULL || 3872 data->rx_probe_req.ie == NULL) 3873 break; 3874#ifdef CONFIG_AP 3875 if (wpa_s->ap_iface) { 3876 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], 3877 data->rx_probe_req.sa, 3878 data->rx_probe_req.da, 3879 data->rx_probe_req.bssid, 3880 data->rx_probe_req.ie, 3881 data->rx_probe_req.ie_len, 3882 data->rx_probe_req.ssi_signal); 3883 break; 3884 } 3885#endif /* CONFIG_AP */ 3886 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa, 3887 data->rx_probe_req.da, 3888 data->rx_probe_req.bssid, 3889 data->rx_probe_req.ie, 3890 data->rx_probe_req.ie_len, 3891 0, 3892 data->rx_probe_req.ssi_signal); 3893 break; 3894 case EVENT_REMAIN_ON_CHANNEL: 3895#ifdef CONFIG_OFFCHANNEL 3896 offchannel_remain_on_channel_cb( 3897 wpa_s, data->remain_on_channel.freq, 3898 data->remain_on_channel.duration); 3899#endif /* CONFIG_OFFCHANNEL */ 3900 wpas_p2p_remain_on_channel_cb( 3901 wpa_s, data->remain_on_channel.freq, 3902 data->remain_on_channel.duration); 3903 break; 3904 case EVENT_CANCEL_REMAIN_ON_CHANNEL: 3905#ifdef CONFIG_OFFCHANNEL 3906 offchannel_cancel_remain_on_channel_cb( 3907 wpa_s, data->remain_on_channel.freq); 3908#endif /* CONFIG_OFFCHANNEL */ 3909 wpas_p2p_cancel_remain_on_channel_cb( 3910 wpa_s, data->remain_on_channel.freq); 3911 break; 3912 case EVENT_EAPOL_RX: 3913 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, 3914 data->eapol_rx.data, 3915 data->eapol_rx.data_len); 3916 break; 3917 case EVENT_SIGNAL_CHANGE: 3918 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE 3919 "above=%d signal=%d noise=%d txrate=%d", 3920 data->signal_change.above_threshold, 3921 data->signal_change.current_signal, 3922 data->signal_change.current_noise, 3923 data->signal_change.current_txrate); 3924 wpa_bss_update_level(wpa_s->current_bss, 3925 data->signal_change.current_signal); 3926 bgscan_notify_signal_change( 3927 wpa_s, data->signal_change.above_threshold, 3928 data->signal_change.current_signal, 3929 data->signal_change.current_noise, 3930 data->signal_change.current_txrate); 3931 break; 3932 case EVENT_INTERFACE_ENABLED: 3933 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); 3934 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 3935 wpa_supplicant_update_mac_addr(wpa_s); 3936 if (wpa_s->p2p_mgmt) { 3937 wpa_supplicant_set_state(wpa_s, 3938 WPA_DISCONNECTED); 3939 break; 3940 } 3941 3942#ifdef CONFIG_AP 3943 if (!wpa_s->ap_iface) { 3944 wpa_supplicant_set_state(wpa_s, 3945 WPA_DISCONNECTED); 3946 wpa_s->scan_req = NORMAL_SCAN_REQ; 3947 wpa_supplicant_req_scan(wpa_s, 0, 0); 3948 } else 3949 wpa_supplicant_set_state(wpa_s, 3950 WPA_COMPLETED); 3951#else /* CONFIG_AP */ 3952 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 3953 wpa_supplicant_req_scan(wpa_s, 0, 0); 3954#endif /* CONFIG_AP */ 3955 } 3956 break; 3957 case EVENT_INTERFACE_DISABLED: 3958 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); 3959#ifdef CONFIG_P2P 3960 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO || 3961 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group && 3962 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) { 3963 /* 3964 * Mark interface disabled if this happens to end up not 3965 * being removed as a separate P2P group interface. 3966 */ 3967 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 3968 /* 3969 * The interface was externally disabled. Remove 3970 * it assuming an external entity will start a 3971 * new session if needed. 3972 */ 3973 if (wpa_s->current_ssid && 3974 wpa_s->current_ssid->p2p_group) 3975 wpas_p2p_interface_unavailable(wpa_s); 3976 else 3977 wpas_p2p_disconnect(wpa_s); 3978 /* 3979 * wpa_s instance may have been freed, so must not use 3980 * it here anymore. 3981 */ 3982 break; 3983 } 3984 if (wpa_s->p2p_scan_work && wpa_s->global->p2p && 3985 p2p_in_progress(wpa_s->global->p2p) > 1) { 3986 /* This radio work will be cancelled, so clear P2P 3987 * state as well. 3988 */ 3989 p2p_stop_find(wpa_s->global->p2p); 3990 } 3991#endif /* CONFIG_P2P */ 3992 3993 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) { 3994 /* 3995 * Indicate disconnection to keep ctrl_iface events 3996 * consistent. 3997 */ 3998 wpa_supplicant_event_disassoc( 3999 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1); 4000 } 4001 wpa_supplicant_mark_disassoc(wpa_s); 4002 wpa_bss_flush(wpa_s); 4003 radio_remove_works(wpa_s, NULL, 0); 4004 4005 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 4006 break; 4007 case EVENT_CHANNEL_LIST_CHANGED: 4008 wpa_supplicant_update_channel_list( 4009 wpa_s, &data->channel_list_changed); 4010 break; 4011 case EVENT_INTERFACE_UNAVAILABLE: 4012 wpas_p2p_interface_unavailable(wpa_s); 4013 break; 4014 case EVENT_BEST_CHANNEL: 4015 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " 4016 "(%d %d %d)", 4017 data->best_chan.freq_24, data->best_chan.freq_5, 4018 data->best_chan.freq_overall); 4019 wpa_s->best_24_freq = data->best_chan.freq_24; 4020 wpa_s->best_5_freq = data->best_chan.freq_5; 4021 wpa_s->best_overall_freq = data->best_chan.freq_overall; 4022 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, 4023 data->best_chan.freq_5, 4024 data->best_chan.freq_overall); 4025 break; 4026 case EVENT_UNPROT_DEAUTH: 4027 wpa_supplicant_event_unprot_deauth(wpa_s, 4028 &data->unprot_deauth); 4029 break; 4030 case EVENT_UNPROT_DISASSOC: 4031 wpa_supplicant_event_unprot_disassoc(wpa_s, 4032 &data->unprot_disassoc); 4033 break; 4034 case EVENT_STATION_LOW_ACK: 4035#ifdef CONFIG_AP 4036 if (wpa_s->ap_iface && data) 4037 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], 4038 data->low_ack.addr); 4039#endif /* CONFIG_AP */ 4040#ifdef CONFIG_TDLS 4041 if (data) 4042 wpa_tdls_disable_unreachable_link(wpa_s->wpa, 4043 data->low_ack.addr); 4044#endif /* CONFIG_TDLS */ 4045 break; 4046 case EVENT_IBSS_PEER_LOST: 4047#ifdef CONFIG_IBSS_RSN 4048 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer); 4049#endif /* CONFIG_IBSS_RSN */ 4050 break; 4051 case EVENT_DRIVER_GTK_REKEY: 4052 if (os_memcmp(data->driver_gtk_rekey.bssid, 4053 wpa_s->bssid, ETH_ALEN)) 4054 break; 4055 if (!wpa_s->wpa) 4056 break; 4057 wpa_sm_update_replay_ctr(wpa_s->wpa, 4058 data->driver_gtk_rekey.replay_ctr); 4059 break; 4060 case EVENT_SCHED_SCAN_STOPPED: 4061 wpa_s->sched_scanning = 0; 4062 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s); 4063 wpa_supplicant_notify_scanning(wpa_s, 0); 4064 4065 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 4066 break; 4067 4068 /* 4069 * If the driver stopped scanning without being requested to, 4070 * request a new scan to continue scanning for networks. 4071 */ 4072 if (!wpa_s->sched_scan_stop_req && 4073 wpa_s->wpa_state == WPA_SCANNING) { 4074 wpa_dbg(wpa_s, MSG_DEBUG, 4075 "Restart scanning after unexpected sched_scan stop event"); 4076 wpa_supplicant_req_scan(wpa_s, 1, 0); 4077 break; 4078 } 4079 4080 wpa_s->sched_scan_stop_req = 0; 4081 4082 /* 4083 * Start a new sched scan to continue searching for more SSIDs 4084 * either if timed out or PNO schedule scan is pending. 4085 */ 4086 if (wpa_s->sched_scan_timed_out) { 4087 wpa_supplicant_req_sched_scan(wpa_s); 4088 } else if (wpa_s->pno_sched_pending) { 4089 wpa_s->pno_sched_pending = 0; 4090 wpas_start_pno(wpa_s); 4091 } else if (resched) { 4092 wpa_supplicant_req_scan(wpa_s, 0, 0); 4093 } 4094 4095 break; 4096 case EVENT_WPS_BUTTON_PUSHED: 4097#ifdef CONFIG_WPS 4098 wpas_wps_start_pbc(wpa_s, NULL, 0); 4099#endif /* CONFIG_WPS */ 4100 break; 4101 case EVENT_AVOID_FREQUENCIES: 4102 wpa_supplicant_notify_avoid_freq(wpa_s, data); 4103 break; 4104 case EVENT_CONNECT_FAILED_REASON: 4105#ifdef CONFIG_AP 4106 if (!wpa_s->ap_iface || !data) 4107 break; 4108 hostapd_event_connect_failed_reason( 4109 wpa_s->ap_iface->bss[0], 4110 data->connect_failed_reason.addr, 4111 data->connect_failed_reason.code); 4112#endif /* CONFIG_AP */ 4113 break; 4114 case EVENT_NEW_PEER_CANDIDATE: 4115#ifdef CONFIG_MESH 4116 if (!wpa_s->ifmsh || !data) 4117 break; 4118 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer, 4119 data->mesh_peer.ies, 4120 data->mesh_peer.ie_len); 4121#endif /* CONFIG_MESH */ 4122 break; 4123 case EVENT_SURVEY: 4124#ifdef CONFIG_AP 4125 if (!wpa_s->ap_iface) 4126 break; 4127 hostapd_event_get_survey(wpa_s->ap_iface, 4128 &data->survey_results); 4129#endif /* CONFIG_AP */ 4130 break; 4131 case EVENT_ACS_CHANNEL_SELECTED: 4132#ifdef CONFIG_ACS 4133 if (!wpa_s->ap_iface) 4134 break; 4135 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0], 4136 &data->acs_selected_channels); 4137#endif /* CONFIG_ACS */ 4138 break; 4139 case EVENT_P2P_LO_STOP: 4140#ifdef CONFIG_P2P 4141 wpa_s->p2p_lo_started = 0; 4142 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP 4143 P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d", 4144 data->p2p_lo_stop.reason_code); 4145#endif /* CONFIG_P2P */ 4146 break; 4147 default: 4148 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); 4149 break; 4150 } 4151} 4152 4153 4154void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event, 4155 union wpa_event_data *data) 4156{ 4157 struct wpa_supplicant *wpa_s; 4158 4159 if (event != EVENT_INTERFACE_STATUS) 4160 return; 4161 4162 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname); 4163 if (wpa_s && wpa_s->driver->get_ifindex) { 4164 unsigned int ifindex; 4165 4166 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv); 4167 if (ifindex != data->interface_status.ifindex) { 4168 wpa_dbg(wpa_s, MSG_DEBUG, 4169 "interface status ifindex %d mismatch (%d)", 4170 ifindex, data->interface_status.ifindex); 4171 return; 4172 } 4173 } 4174#ifdef CONFIG_MATCH_IFACE 4175 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) { 4176 struct wpa_interface *wpa_i; 4177 4178 wpa_i = wpa_supplicant_match_iface( 4179 ctx, data->interface_status.ifname); 4180 if (!wpa_i) 4181 return; 4182 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL); 4183 os_free(wpa_i); 4184 if (wpa_s) 4185 wpa_s->matched = 1; 4186 } 4187#endif /* CONFIG_MATCH_IFACE */ 4188 4189 if (wpa_s) 4190 wpa_supplicant_event(wpa_s, event, data); 4191} 4192