1/* 2 * WPA Supplicant - Driver event processing 3 * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9#include "includes.h" 10 11#include "common.h" 12#include "eapol_supp/eapol_supp_sm.h" 13#include "rsn_supp/wpa.h" 14#include "eloop.h" 15#include "config.h" 16#include "l2_packet/l2_packet.h" 17#include "wpa_supplicant_i.h" 18#include "driver_i.h" 19#include "pcsc_funcs.h" 20#include "rsn_supp/preauth.h" 21#include "rsn_supp/pmksa_cache.h" 22#include "common/wpa_ctrl.h" 23#include "eap_peer/eap.h" 24#include "ap/hostapd.h" 25#include "p2p/p2p.h" 26#include "wnm_sta.h" 27#include "notify.h" 28#include "common/ieee802_11_defs.h" 29#include "common/ieee802_11_common.h" 30#include "crypto/random.h" 31#include "blacklist.h" 32#include "wpas_glue.h" 33#include "wps_supplicant.h" 34#include "ibss_rsn.h" 35#include "sme.h" 36#include "gas_query.h" 37#include "p2p_supplicant.h" 38#include "bgscan.h" 39#include "autoscan.h" 40#include "ap.h" 41#include "bss.h" 42#include "scan.h" 43#include "offchannel.h" 44#include "interworking.h" 45 46 47static int wpas_temp_disabled(struct wpa_supplicant *wpa_s, 48 struct wpa_ssid *ssid) 49{ 50 struct os_time now; 51 52 if (ssid == NULL || ssid->disabled_until.sec == 0) 53 return 0; 54 55 os_get_time(&now); 56 if (ssid->disabled_until.sec > now.sec) 57 return ssid->disabled_until.sec - now.sec; 58 59 wpas_clear_temp_disabled(wpa_s, ssid, 0); 60 61 return 0; 62} 63 64 65static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s) 66{ 67 struct wpa_ssid *ssid, *old_ssid; 68 int res; 69 70 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) 71 return 0; 72 73 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association " 74 "information"); 75 ssid = wpa_supplicant_get_ssid(wpa_s); 76 if (ssid == NULL) { 77 wpa_msg(wpa_s, MSG_INFO, 78 "No network configuration found for the current AP"); 79 return -1; 80 } 81 82 if (wpas_network_disabled(wpa_s, ssid)) { 83 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled"); 84 return -1; 85 } 86 87 if (disallowed_bssid(wpa_s, wpa_s->bssid) || 88 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) { 89 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed"); 90 return -1; 91 } 92 93 res = wpas_temp_disabled(wpa_s, ssid); 94 if (res > 0) { 95 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily " 96 "disabled for %d second(s)", res); 97 return -1; 98 } 99 100 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the " 101 "current AP"); 102 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { 103 u8 wpa_ie[80]; 104 size_t wpa_ie_len = sizeof(wpa_ie); 105 wpa_supplicant_set_suites(wpa_s, NULL, ssid, 106 wpa_ie, &wpa_ie_len); 107 } else { 108 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); 109 } 110 111 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) 112 eapol_sm_invalidate_cached_session(wpa_s->eapol); 113 old_ssid = wpa_s->current_ssid; 114 wpa_s->current_ssid = ssid; 115 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); 116 wpa_supplicant_initiate_eapol(wpa_s); 117 if (old_ssid != wpa_s->current_ssid) 118 wpas_notify_network_changed(wpa_s); 119 120 return 0; 121} 122 123 124void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx) 125{ 126 struct wpa_supplicant *wpa_s = eloop_ctx; 127 128 if (wpa_s->countermeasures) { 129 wpa_s->countermeasures = 0; 130 wpa_drv_set_countermeasures(wpa_s, 0); 131 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped"); 132 wpa_supplicant_req_scan(wpa_s, 0, 0); 133 } 134} 135 136 137void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s) 138{ 139 int bssid_changed; 140 141 wnm_bss_keep_alive_deinit(wpa_s); 142 143#ifdef CONFIG_IBSS_RSN 144 ibss_rsn_deinit(wpa_s->ibss_rsn); 145 wpa_s->ibss_rsn = NULL; 146#endif /* CONFIG_IBSS_RSN */ 147 148#ifdef CONFIG_AP 149 wpa_supplicant_ap_deinit(wpa_s); 150#endif /* CONFIG_AP */ 151 152 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 153 return; 154 155 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 156 bssid_changed = !is_zero_ether_addr(wpa_s->bssid); 157 os_memset(wpa_s->bssid, 0, ETH_ALEN); 158 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 159#ifdef CONFIG_SME 160 wpa_s->sme.prev_bssid_set = 0; 161#endif /* CONFIG_SME */ 162#ifdef CONFIG_P2P 163 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN); 164#endif /* CONFIG_P2P */ 165 wpa_s->current_bss = NULL; 166 wpa_s->assoc_freq = 0; 167#ifdef CONFIG_IEEE80211R 168#ifdef CONFIG_SME 169 if (wpa_s->sme.ft_ies) 170 sme_update_ft_ies(wpa_s, NULL, NULL, 0); 171#endif /* CONFIG_SME */ 172#endif /* CONFIG_IEEE80211R */ 173 174 if (bssid_changed) 175 wpas_notify_bssid_changed(wpa_s); 176 177 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 178 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 179 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 180 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 181 wpa_s->ap_ies_from_associnfo = 0; 182 wpa_s->current_ssid = NULL; 183 wpa_s->key_mgmt = 0; 184 wpa_s->wnmsleep_used = 0; 185} 186 187 188static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s) 189{ 190 struct wpa_ie_data ie; 191 int pmksa_set = -1; 192 size_t i; 193 194 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 || 195 ie.pmkid == NULL) 196 return; 197 198 for (i = 0; i < ie.num_pmkid; i++) { 199 pmksa_set = pmksa_cache_set_current(wpa_s->wpa, 200 ie.pmkid + i * PMKID_LEN, 201 NULL, NULL, 0); 202 if (pmksa_set == 0) { 203 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); 204 break; 205 } 206 } 207 208 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from " 209 "PMKSA cache", pmksa_set == 0 ? "" : "not "); 210} 211 212 213static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s, 214 union wpa_event_data *data) 215{ 216 if (data == NULL) { 217 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate " 218 "event"); 219 return; 220 } 221 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR 222 " index=%d preauth=%d", 223 MAC2STR(data->pmkid_candidate.bssid), 224 data->pmkid_candidate.index, 225 data->pmkid_candidate.preauth); 226 227 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid, 228 data->pmkid_candidate.index, 229 data->pmkid_candidate.preauth); 230} 231 232 233static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s) 234{ 235 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 236 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) 237 return 0; 238 239#ifdef IEEE8021X_EAPOL 240 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA && 241 wpa_s->current_ssid && 242 !(wpa_s->current_ssid->eapol_flags & 243 (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 244 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) { 245 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either 246 * plaintext or static WEP keys). */ 247 return 0; 248 } 249#endif /* IEEE8021X_EAPOL */ 250 251 return 1; 252} 253 254 255/** 256 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC 257 * @wpa_s: pointer to wpa_supplicant data 258 * @ssid: Configuration data for the network 259 * Returns: 0 on success, -1 on failure 260 * 261 * This function is called when starting authentication with a network that is 262 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA). 263 */ 264int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s, 265 struct wpa_ssid *ssid) 266{ 267#ifdef IEEE8021X_EAPOL 268#ifdef PCSC_FUNCS 269 int aka = 0, sim = 0, type; 270 271 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL) 272 return 0; 273 274 if (ssid->eap.eap_methods == NULL) { 275 sim = 1; 276 aka = 1; 277 } else { 278 struct eap_method_type *eap = ssid->eap.eap_methods; 279 while (eap->vendor != EAP_VENDOR_IETF || 280 eap->method != EAP_TYPE_NONE) { 281 if (eap->vendor == EAP_VENDOR_IETF) { 282 if (eap->method == EAP_TYPE_SIM) 283 sim = 1; 284 else if (eap->method == EAP_TYPE_AKA || 285 eap->method == EAP_TYPE_AKA_PRIME) 286 aka = 1; 287 } 288 eap++; 289 } 290 } 291 292 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL) 293 sim = 0; 294 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL && 295 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) == 296 NULL) 297 aka = 0; 298 299 if (!sim && !aka) { 300 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to " 301 "use SIM, but neither EAP-SIM nor EAP-AKA are " 302 "enabled"); 303 return 0; 304 } 305 306 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM " 307 "(sim=%d aka=%d) - initialize PCSC", sim, aka); 308 if (sim && aka) 309 type = SCARD_TRY_BOTH; 310 else if (aka) 311 type = SCARD_USIM_ONLY; 312 else 313 type = SCARD_GSM_SIM_ONLY; 314 315 wpa_s->scard = scard_init(type, NULL); 316 if (wpa_s->scard == NULL) { 317 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM " 318 "(pcsc-lite)"); 319 return -1; 320 } 321 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); 322 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); 323#endif /* PCSC_FUNCS */ 324#endif /* IEEE8021X_EAPOL */ 325 326 return 0; 327} 328 329 330#ifndef CONFIG_NO_SCAN_PROCESSING 331static int wpa_supplicant_match_privacy(struct wpa_bss *bss, 332 struct wpa_ssid *ssid) 333{ 334 int i, privacy = 0; 335 336 if (ssid->mixed_cell) 337 return 1; 338 339#ifdef CONFIG_WPS 340 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) 341 return 1; 342#endif /* CONFIG_WPS */ 343 344 for (i = 0; i < NUM_WEP_KEYS; i++) { 345 if (ssid->wep_key_len[i]) { 346 privacy = 1; 347 break; 348 } 349 } 350#ifdef IEEE8021X_EAPOL 351 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 352 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 353 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) 354 privacy = 1; 355#endif /* IEEE8021X_EAPOL */ 356 357 if (wpa_key_mgmt_wpa(ssid->key_mgmt)) 358 privacy = 1; 359 360 if (bss->caps & IEEE80211_CAP_PRIVACY) 361 return privacy; 362 return !privacy; 363} 364 365 366static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s, 367 struct wpa_ssid *ssid, 368 struct wpa_bss *bss) 369{ 370 struct wpa_ie_data ie; 371 int proto_match = 0; 372 const u8 *rsn_ie, *wpa_ie; 373 int ret; 374 int wep_ok; 375 376 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss); 377 if (ret >= 0) 378 return ret; 379 380 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */ 381 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) && 382 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 383 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) || 384 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)); 385 386 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 387 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) { 388 proto_match++; 389 390 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) { 391 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse " 392 "failed"); 393 break; 394 } 395 396 if (wep_ok && 397 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 398 { 399 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 400 "in RSN IE"); 401 return 1; 402 } 403 404 if (!(ie.proto & ssid->proto)) { 405 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto " 406 "mismatch"); 407 break; 408 } 409 410 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 411 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK " 412 "cipher mismatch"); 413 break; 414 } 415 416 if (!(ie.group_cipher & ssid->group_cipher)) { 417 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK " 418 "cipher mismatch"); 419 break; 420 } 421 422 if (!(ie.key_mgmt & ssid->key_mgmt)) { 423 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt " 424 "mismatch"); 425 break; 426 } 427 428#ifdef CONFIG_IEEE80211W 429 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 430 (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? 431 wpa_s->conf->pmf : ssid->ieee80211w) == 432 MGMT_FRAME_PROTECTION_REQUIRED) { 433 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt " 434 "frame protection"); 435 break; 436 } 437#endif /* CONFIG_IEEE80211W */ 438 439 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE"); 440 return 1; 441 } 442 443 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 444 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) { 445 proto_match++; 446 447 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) { 448 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse " 449 "failed"); 450 break; 451 } 452 453 if (wep_ok && 454 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 455 { 456 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 457 "in WPA IE"); 458 return 1; 459 } 460 461 if (!(ie.proto & ssid->proto)) { 462 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto " 463 "mismatch"); 464 break; 465 } 466 467 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 468 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK " 469 "cipher mismatch"); 470 break; 471 } 472 473 if (!(ie.group_cipher & ssid->group_cipher)) { 474 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK " 475 "cipher mismatch"); 476 break; 477 } 478 479 if (!(ie.key_mgmt & ssid->key_mgmt)) { 480 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt " 481 "mismatch"); 482 break; 483 } 484 485 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE"); 486 return 1; 487 } 488 489 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie && 490 !rsn_ie) { 491 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X"); 492 return 1; 493 } 494 495 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) && 496 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) { 497 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match"); 498 return 0; 499 } 500 501 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) { 502 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2"); 503 return 1; 504 } 505 506 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with " 507 "WPA/WPA2"); 508 509 return 0; 510} 511 512 513static int freq_allowed(int *freqs, int freq) 514{ 515 int i; 516 517 if (freqs == NULL) 518 return 1; 519 520 for (i = 0; freqs[i]; i++) 521 if (freqs[i] == freq) 522 return 1; 523 return 0; 524} 525 526 527static int ht_supported(const struct hostapd_hw_modes *mode) 528{ 529 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) { 530 /* 531 * The driver did not indicate whether it supports HT. Assume 532 * it does to avoid connection issues. 533 */ 534 return 1; 535 } 536 537 /* 538 * IEEE Std 802.11n-2009 20.1.1: 539 * An HT non-AP STA shall support all EQM rates for one spatial stream. 540 */ 541 return mode->mcs_set[0] == 0xff; 542} 543 544 545static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss) 546{ 547 const struct hostapd_hw_modes *mode = NULL, *modes; 548 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES }; 549 const u8 *rate_ie; 550 int i, j, k; 551 552 if (bss->freq == 0) 553 return 1; /* Cannot do matching without knowing band */ 554 555 modes = wpa_s->hw.modes; 556 if (modes == NULL) { 557 /* 558 * The driver does not provide any additional information 559 * about the utilized hardware, so allow the connection attempt 560 * to continue. 561 */ 562 return 1; 563 } 564 565 for (i = 0; i < wpa_s->hw.num_modes; i++) { 566 for (j = 0; j < modes[i].num_channels; j++) { 567 int freq = modes[i].channels[j].freq; 568 if (freq == bss->freq) { 569 if (mode && 570 mode->mode == HOSTAPD_MODE_IEEE80211G) 571 break; /* do not allow 802.11b replace 572 * 802.11g */ 573 mode = &modes[i]; 574 break; 575 } 576 } 577 } 578 579 if (mode == NULL) 580 return 0; 581 582 for (i = 0; i < (int) sizeof(scan_ie); i++) { 583 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]); 584 if (rate_ie == NULL) 585 continue; 586 587 for (j = 2; j < rate_ie[1] + 2; j++) { 588 int flagged = !!(rate_ie[j] & 0x80); 589 int r = (rate_ie[j] & 0x7f) * 5; 590 591 /* 592 * IEEE Std 802.11n-2009 7.3.2.2: 593 * The new BSS Membership selector value is encoded 594 * like a legacy basic rate, but it is not a rate and 595 * only indicates if the BSS members are required to 596 * support the mandatory features of Clause 20 [HT PHY] 597 * in order to join the BSS. 598 */ 599 if (flagged && ((rate_ie[j] & 0x7f) == 600 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) { 601 if (!ht_supported(mode)) { 602 wpa_dbg(wpa_s, MSG_DEBUG, 603 " hardware does not support " 604 "HT PHY"); 605 return 0; 606 } 607 continue; 608 } 609 610 if (!flagged) 611 continue; 612 613 /* check for legacy basic rates */ 614 for (k = 0; k < mode->num_rates; k++) { 615 if (mode->rates[k] == r) 616 break; 617 } 618 if (k == mode->num_rates) { 619 /* 620 * IEEE Std 802.11-2007 7.3.2.2 demands that in 621 * order to join a BSS all required rates 622 * have to be supported by the hardware. 623 */ 624 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does " 625 "not support required rate %d.%d Mbps", 626 r / 10, r % 10); 627 return 0; 628 } 629 } 630 } 631 632 return 1; 633} 634 635 636static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s, 637 int i, struct wpa_bss *bss, 638 struct wpa_ssid *group) 639{ 640 u8 wpa_ie_len, rsn_ie_len; 641 int wpa; 642 struct wpa_blacklist *e; 643 const u8 *ie; 644 struct wpa_ssid *ssid; 645 646 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 647 wpa_ie_len = ie ? ie[1] : 0; 648 649 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 650 rsn_ie_len = ie ? ie[1] : 0; 651 652 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' " 653 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s", 654 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len), 655 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, 656 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : ""); 657 658 e = wpa_blacklist_get(wpa_s, bss->bssid); 659 if (e) { 660 int limit = 1; 661 if (wpa_supplicant_enabled_networks(wpa_s) == 1) { 662 /* 663 * When only a single network is enabled, we can 664 * trigger blacklisting on the first failure. This 665 * should not be done with multiple enabled networks to 666 * avoid getting forced to move into a worse ESS on 667 * single error if there are no other BSSes of the 668 * current ESS. 669 */ 670 limit = 0; 671 } 672 if (e->count > limit) { 673 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 674 "(count=%d limit=%d)", e->count, limit); 675 return NULL; 676 } 677 } 678 679 if (bss->ssid_len == 0) { 680 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known"); 681 return NULL; 682 } 683 684 if (disallowed_bssid(wpa_s, bss->bssid)) { 685 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed"); 686 return NULL; 687 } 688 689 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) { 690 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed"); 691 return NULL; 692 } 693 694 wpa = wpa_ie_len > 0 || rsn_ie_len > 0; 695 696 for (ssid = group; ssid; ssid = ssid->pnext) { 697 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0); 698 int res; 699 700 if (wpas_network_disabled(wpa_s, ssid)) { 701 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled"); 702 continue; 703 } 704 705 res = wpas_temp_disabled(wpa_s, ssid); 706 if (res > 0) { 707 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled " 708 "temporarily for %d second(s)", res); 709 continue; 710 } 711 712#ifdef CONFIG_WPS 713 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) { 714 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 715 "(WPS)"); 716 continue; 717 } 718 719 if (wpa && ssid->ssid_len == 0 && 720 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 721 check_ssid = 0; 722 723 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 724 /* Only allow wildcard SSID match if an AP 725 * advertises active WPS operation that matches 726 * with our mode. */ 727 check_ssid = 1; 728 if (ssid->ssid_len == 0 && 729 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 730 check_ssid = 0; 731 } 732#endif /* CONFIG_WPS */ 733 734 if (ssid->bssid_set && ssid->ssid_len == 0 && 735 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0) 736 check_ssid = 0; 737 738 if (check_ssid && 739 (bss->ssid_len != ssid->ssid_len || 740 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) { 741 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch"); 742 continue; 743 } 744 745 if (ssid->bssid_set && 746 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) { 747 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch"); 748 continue; 749 } 750 751 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss)) 752 continue; 753 754 if (!wpa && 755 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 756 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) && 757 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) { 758 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network " 759 "not allowed"); 760 continue; 761 } 762 763 if (!wpa_supplicant_match_privacy(bss, ssid)) { 764 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy " 765 "mismatch"); 766 continue; 767 } 768 769 if (bss->caps & IEEE80211_CAP_IBSS) { 770 wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) " 771 "network"); 772 continue; 773 } 774 775 if (!freq_allowed(ssid->freq_list, bss->freq)) { 776 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not " 777 "allowed"); 778 continue; 779 } 780 781 if (!rate_match(wpa_s, bss)) { 782 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do " 783 "not match"); 784 continue; 785 } 786 787#ifdef CONFIG_P2P 788 /* 789 * TODO: skip the AP if its P2P IE has Group Formation 790 * bit set in the P2P Group Capability Bitmap and we 791 * are not in Group Formation with that device. 792 */ 793#endif /* CONFIG_P2P */ 794 795 /* Matching configuration found */ 796 return ssid; 797 } 798 799 /* No matching configuration found */ 800 return NULL; 801} 802 803 804static struct wpa_bss * 805wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, 806 struct wpa_ssid *group, 807 struct wpa_ssid **selected_ssid) 808{ 809 unsigned int i; 810 811 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d", 812 group->priority); 813 814 for (i = 0; i < wpa_s->last_scan_res_used; i++) { 815 struct wpa_bss *bss = wpa_s->last_scan_res[i]; 816 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group); 817 if (!*selected_ssid) 818 continue; 819 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR 820 " ssid='%s'", 821 MAC2STR(bss->bssid), 822 wpa_ssid_txt(bss->ssid, bss->ssid_len)); 823 return bss; 824 } 825 826 return NULL; 827} 828 829 830static struct wpa_bss * 831wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s, 832 struct wpa_ssid **selected_ssid) 833{ 834 struct wpa_bss *selected = NULL; 835 int prio; 836 837 if (wpa_s->last_scan_res == NULL || 838 wpa_s->last_scan_res_used == 0) 839 return NULL; /* no scan results from last update */ 840 841 while (selected == NULL) { 842 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 843 selected = wpa_supplicant_select_bss( 844 wpa_s, wpa_s->conf->pssid[prio], 845 selected_ssid); 846 if (selected) 847 break; 848 } 849 850 if (selected == NULL && wpa_s->blacklist && 851 !wpa_s->countermeasures) { 852 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear " 853 "blacklist and try again"); 854 wpa_blacklist_clear(wpa_s); 855 wpa_s->blacklist_cleared++; 856 } else if (selected == NULL) 857 break; 858 } 859 860 return selected; 861} 862 863 864static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s, 865 int timeout_sec, int timeout_usec) 866{ 867 if (!wpa_supplicant_enabled_networks(wpa_s)) { 868 /* 869 * No networks are enabled; short-circuit request so 870 * we don't wait timeout seconds before transitioning 871 * to INACTIVE state. 872 */ 873 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request " 874 "since there are no enabled networks"); 875 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); 876#ifdef CONFIG_P2P 877 wpa_s->sta_scan_pending = 0; 878#endif /* CONFIG_P2P */ 879 return; 880 } 881 882 wpa_s->scan_for_connection = 1; 883 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec); 884} 885 886 887int wpa_supplicant_connect(struct wpa_supplicant *wpa_s, 888 struct wpa_bss *selected, 889 struct wpa_ssid *ssid) 890{ 891 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) { 892 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP 893 "PBC session overlap"); 894#ifdef CONFIG_P2P 895 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1) 896 return -1; 897#endif /* CONFIG_P2P */ 898 899#ifdef CONFIG_WPS 900 wpas_wps_cancel(wpa_s); 901#endif /* CONFIG_WPS */ 902 return -1; 903 } 904 905 /* 906 * Do not trigger new association unless the BSSID has changed or if 907 * reassociation is requested. If we are in process of associating with 908 * the selected BSSID, do not trigger new attempt. 909 */ 910 if (wpa_s->reassociate || 911 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 && 912 ((wpa_s->wpa_state != WPA_ASSOCIATING && 913 wpa_s->wpa_state != WPA_AUTHENTICATING) || 914 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) != 915 0))) { 916 if (wpa_supplicant_scard_init(wpa_s, ssid)) { 917 wpa_supplicant_req_new_scan(wpa_s, 10, 0); 918 return 0; 919 } 920 wpa_msg(wpa_s, MSG_DEBUG, "Request association: " 921 "reassociate: %d selected: "MACSTR " bssid: " MACSTR 922 " pending: " MACSTR " wpa_state: %s", 923 wpa_s->reassociate, MAC2STR(selected->bssid), 924 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), 925 wpa_supplicant_state_txt(wpa_s->wpa_state)); 926 wpa_supplicant_associate(wpa_s, selected, ssid); 927 } else { 928 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the " 929 "selected AP"); 930 } 931 932 return 0; 933} 934 935 936static struct wpa_ssid * 937wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s) 938{ 939 int prio; 940 struct wpa_ssid *ssid; 941 942 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 943 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext) 944 { 945 if (wpas_network_disabled(wpa_s, ssid)) 946 continue; 947 if (ssid->mode == IEEE80211_MODE_IBSS || 948 ssid->mode == IEEE80211_MODE_AP) 949 return ssid; 950 } 951 } 952 return NULL; 953} 954 955 956/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based 957 * on BSS added and BSS changed events */ 958static void wpa_supplicant_rsn_preauth_scan_results( 959 struct wpa_supplicant *wpa_s) 960{ 961 struct wpa_bss *bss; 962 963 if (rsn_preauth_scan_results(wpa_s->wpa) < 0) 964 return; 965 966 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 967 const u8 *ssid, *rsn; 968 969 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID); 970 if (ssid == NULL) 971 continue; 972 973 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); 974 if (rsn == NULL) 975 continue; 976 977 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn); 978 } 979 980} 981 982 983static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s, 984 struct wpa_bss *selected, 985 struct wpa_ssid *ssid) 986{ 987 struct wpa_bss *current_bss = NULL; 988 int min_diff; 989 990 if (wpa_s->reassociate) 991 return 1; /* explicit request to reassociate */ 992 if (wpa_s->wpa_state < WPA_ASSOCIATED) 993 return 1; /* we are not associated; continue */ 994 if (wpa_s->current_ssid == NULL) 995 return 1; /* unknown current SSID */ 996 if (wpa_s->current_ssid != ssid) 997 return 1; /* different network block */ 998 999 if (wpas_driver_bss_selection(wpa_s)) 1000 return 0; /* Driver-based roaming */ 1001 1002 if (wpa_s->current_ssid->ssid) 1003 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid, 1004 wpa_s->current_ssid->ssid, 1005 wpa_s->current_ssid->ssid_len); 1006 if (!current_bss) 1007 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid); 1008 1009 if (!current_bss) 1010 return 1; /* current BSS not seen in scan results */ 1011 1012 if (current_bss == selected) 1013 return 0; 1014 1015 if (selected->last_update_idx > current_bss->last_update_idx) 1016 return 1; /* current BSS not seen in the last scan */ 1017 1018#ifndef CONFIG_NO_ROAMING 1019 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation"); 1020 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d", 1021 MAC2STR(current_bss->bssid), current_bss->level); 1022 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d", 1023 MAC2STR(selected->bssid), selected->level); 1024 1025 if (wpa_s->current_ssid->bssid_set && 1026 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) == 1027 0) { 1028 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS " 1029 "has preferred BSSID"); 1030 return 1; 1031 } 1032 1033 if (current_bss->level < 0 && current_bss->level > selected->level) { 1034 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better " 1035 "signal level"); 1036 return 0; 1037 } 1038 1039 min_diff = 2; 1040 if (current_bss->level < 0) { 1041 if (current_bss->level < -85) 1042 min_diff = 1; 1043 else if (current_bss->level < -80) 1044 min_diff = 2; 1045 else if (current_bss->level < -75) 1046 min_diff = 3; 1047 else if (current_bss->level < -70) 1048 min_diff = 4; 1049 else 1050 min_diff = 5; 1051 } 1052 if (abs(current_bss->level - selected->level) < min_diff) { 1053 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference " 1054 "in signal level"); 1055 return 0; 1056 } 1057 1058 return 1; 1059#else /* CONFIG_NO_ROAMING */ 1060 return 0; 1061#endif /* CONFIG_NO_ROAMING */ 1062} 1063 1064 1065/* Return != 0 if no scan results could be fetched or if scan results should not 1066 * be shared with other virtual interfaces. */ 1067static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1068 union wpa_event_data *data) 1069{ 1070 struct wpa_scan_results *scan_res; 1071 int ap = 0; 1072#ifndef CONFIG_NO_RANDOM_POOL 1073 size_t i, num; 1074#endif /* CONFIG_NO_RANDOM_POOL */ 1075 1076#ifdef CONFIG_AP 1077 if (wpa_s->ap_iface) 1078 ap = 1; 1079#endif /* CONFIG_AP */ 1080 1081 wpa_supplicant_notify_scanning(wpa_s, 0); 1082 1083#ifdef CONFIG_P2P 1084 if (wpa_s->global->p2p_cb_on_scan_complete && 1085 !wpa_s->global->p2p_disabled && 1086 wpa_s->global->p2p != NULL && !wpa_s->sta_scan_pending && 1087 !wpa_s->scan_res_handler) { 1088 wpa_s->global->p2p_cb_on_scan_complete = 0; 1089 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) { 1090 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation " 1091 "stopped scan processing"); 1092 wpa_s->sta_scan_pending = 1; 1093 wpa_supplicant_req_scan(wpa_s, 5, 0); 1094 return -1; 1095 } 1096 } 1097 wpa_s->sta_scan_pending = 0; 1098#endif /* CONFIG_P2P */ 1099 1100 scan_res = wpa_supplicant_get_scan_results(wpa_s, 1101 data ? &data->scan_info : 1102 NULL, 1); 1103 if (scan_res == NULL) { 1104 if (wpa_s->conf->ap_scan == 2 || ap) 1105 return -1; 1106 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try " 1107 "scanning again"); 1108 wpa_supplicant_req_new_scan(wpa_s, 1, 0); 1109 return -1; 1110 } 1111 1112#ifndef CONFIG_NO_RANDOM_POOL 1113 num = scan_res->num; 1114 if (num > 10) 1115 num = 10; 1116 for (i = 0; i < num; i++) { 1117 u8 buf[5]; 1118 struct wpa_scan_res *res = scan_res->res[i]; 1119 buf[0] = res->bssid[5]; 1120 buf[1] = res->qual & 0xff; 1121 buf[2] = res->noise & 0xff; 1122 buf[3] = res->level & 0xff; 1123 buf[4] = res->tsf & 0xff; 1124 random_add_randomness(buf, sizeof(buf)); 1125 } 1126#endif /* CONFIG_NO_RANDOM_POOL */ 1127 1128 if (wpa_s->scan_res_handler) { 1129 void (*scan_res_handler)(struct wpa_supplicant *wpa_s, 1130 struct wpa_scan_results *scan_res); 1131 1132 scan_res_handler = wpa_s->scan_res_handler; 1133 wpa_s->scan_res_handler = NULL; 1134 scan_res_handler(wpa_s, scan_res); 1135 1136 wpa_scan_results_free(scan_res); 1137 return -2; 1138 } 1139 1140 if (ap) { 1141 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode"); 1142#ifdef CONFIG_AP 1143 if (wpa_s->ap_iface->scan_cb) 1144 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface); 1145#endif /* CONFIG_AP */ 1146 wpa_scan_results_free(scan_res); 1147 return 0; 1148 } 1149 1150 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available"); 1151 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); 1152 wpas_notify_scan_results(wpa_s); 1153 1154 wpas_notify_scan_done(wpa_s, 1); 1155 1156 if (sme_proc_obss_scan(wpa_s) > 0) { 1157 wpa_scan_results_free(scan_res); 1158 return 0; 1159 } 1160 1161 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) { 1162 wpa_scan_results_free(scan_res); 1163 return 0; 1164 } 1165 1166 if (autoscan_notify_scan(wpa_s, scan_res)) { 1167 wpa_scan_results_free(scan_res); 1168 return 0; 1169 } 1170 1171 if (wpa_s->disconnected) { 1172 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 1173 wpa_scan_results_free(scan_res); 1174 return 0; 1175 } 1176 1177 if (!wpas_driver_bss_selection(wpa_s) && 1178 bgscan_notify_scan(wpa_s, scan_res) == 1) { 1179 wpa_scan_results_free(scan_res); 1180 return 0; 1181 } 1182 1183 wpas_wps_update_ap_info(wpa_s, scan_res); 1184 1185 wpa_scan_results_free(scan_res); 1186 1187 return wpas_select_network_from_last_scan(wpa_s); 1188} 1189 1190 1191int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s) 1192{ 1193 struct wpa_bss *selected; 1194 struct wpa_ssid *ssid = NULL; 1195 1196 selected = wpa_supplicant_pick_network(wpa_s, &ssid); 1197 1198 if (selected) { 1199 int skip; 1200 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid); 1201 if (skip) { 1202 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1203 return 0; 1204 } 1205 1206 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) { 1207 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed"); 1208 return -1; 1209 } 1210 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1211 /* 1212 * Do not notify other virtual radios of scan results since we do not 1213 * want them to start other associations at the same time. 1214 */ 1215 return 1; 1216 } else { 1217 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found"); 1218 ssid = wpa_supplicant_pick_new_network(wpa_s); 1219 if (ssid) { 1220 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network"); 1221 wpa_supplicant_associate(wpa_s, NULL, ssid); 1222 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1223 } else { 1224 int timeout_sec = wpa_s->scan_interval; 1225 int timeout_usec = 0; 1226#ifdef CONFIG_P2P 1227 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1) 1228 return 0; 1229 1230 if (wpa_s->p2p_in_provisioning) { 1231 /* 1232 * Use shorter wait during P2P Provisioning 1233 * state to speed up group formation. 1234 */ 1235 timeout_sec = 0; 1236 timeout_usec = 250000; 1237 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1238 timeout_usec); 1239 return 0; 1240 } 1241#endif /* CONFIG_P2P */ 1242#ifdef CONFIG_INTERWORKING 1243 if (wpa_s->conf->auto_interworking && 1244 wpa_s->conf->interworking && 1245 wpa_s->conf->cred) { 1246 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: " 1247 "start ANQP fetch since no matching " 1248 "networks found"); 1249 wpa_s->network_select = 1; 1250 wpa_s->auto_network_select = 1; 1251 interworking_start_fetch_anqp(wpa_s); 1252 return 1; 1253 } 1254#endif /* CONFIG_INTERWORKING */ 1255 if (wpa_supplicant_req_sched_scan(wpa_s)) 1256 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1257 timeout_usec); 1258 } 1259 } 1260 return 0; 1261} 1262 1263 1264static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1265 union wpa_event_data *data) 1266{ 1267 const char *rn, *rn2; 1268 struct wpa_supplicant *ifs; 1269 1270 if (_wpa_supplicant_event_scan_results(wpa_s, data) != 0) { 1271 /* 1272 * If no scan results could be fetched, then no need to 1273 * notify those interfaces that did not actually request 1274 * this scan. Similarly, if scan results started a new operation on this 1275 * interface, do not notify other interfaces to avoid concurrent 1276 * operations during a connection attempt. 1277 */ 1278 return; 1279 } 1280 1281 /* 1282 * Check other interfaces to see if they have the same radio-name. If 1283 * so, they get updated with this same scan info. 1284 */ 1285 if (!wpa_s->driver->get_radio_name) 1286 return; 1287 1288 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv); 1289 if (rn == NULL || rn[0] == '\0') 1290 return; 1291 1292 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces " 1293 "sharing same radio (%s) in event_scan_results", rn); 1294 1295 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) { 1296 if (ifs == wpa_s || !ifs->driver->get_radio_name) 1297 continue; 1298 1299 rn2 = ifs->driver->get_radio_name(ifs->drv_priv); 1300 if (rn2 && os_strcmp(rn, rn2) == 0) { 1301 wpa_printf(MSG_DEBUG, "%s: Updating scan results from " 1302 "sibling", ifs->ifname); 1303 _wpa_supplicant_event_scan_results(ifs, data); 1304 } 1305 } 1306} 1307 1308#endif /* CONFIG_NO_SCAN_PROCESSING */ 1309 1310 1311#ifdef CONFIG_WNM 1312 1313static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx) 1314{ 1315 struct wpa_supplicant *wpa_s = eloop_ctx; 1316 1317 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1318 return; 1319 1320 if (!wpa_s->no_keep_alive) { 1321 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR, 1322 MAC2STR(wpa_s->bssid)); 1323 /* TODO: could skip this if normal data traffic has been sent */ 1324 /* TODO: Consider using some more appropriate data frame for 1325 * this */ 1326 if (wpa_s->l2) 1327 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, 1328 (u8 *) "", 0); 1329 } 1330 1331#ifdef CONFIG_SME 1332 if (wpa_s->sme.bss_max_idle_period) { 1333 unsigned int msec; 1334 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */ 1335 if (msec > 100) 1336 msec -= 100; 1337 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1338 wnm_bss_keep_alive, wpa_s, NULL); 1339 } 1340#endif /* CONFIG_SME */ 1341} 1342 1343 1344static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s, 1345 const u8 *ies, size_t ies_len) 1346{ 1347 struct ieee802_11_elems elems; 1348 1349 if (ies == NULL) 1350 return; 1351 1352 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 1353 return; 1354 1355#ifdef CONFIG_SME 1356 if (elems.bss_max_idle_period) { 1357 unsigned int msec; 1358 wpa_s->sme.bss_max_idle_period = 1359 WPA_GET_LE16(elems.bss_max_idle_period); 1360 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 " 1361 "TU)%s", wpa_s->sme.bss_max_idle_period, 1362 (elems.bss_max_idle_period[2] & 0x01) ? 1363 " (protected keep-live required)" : ""); 1364 if (wpa_s->sme.bss_max_idle_period == 0) 1365 wpa_s->sme.bss_max_idle_period = 1; 1366 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) { 1367 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1368 /* msec times 1000 */ 1369 msec = wpa_s->sme.bss_max_idle_period * 1024; 1370 if (msec > 100) 1371 msec -= 100; 1372 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1373 wnm_bss_keep_alive, wpa_s, 1374 NULL); 1375 } 1376 } 1377#endif /* CONFIG_SME */ 1378} 1379 1380#endif /* CONFIG_WNM */ 1381 1382 1383void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s) 1384{ 1385#ifdef CONFIG_WNM 1386 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1387#endif /* CONFIG_WNM */ 1388} 1389 1390 1391static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s, 1392 union wpa_event_data *data) 1393{ 1394 int l, len, found = 0, wpa_found, rsn_found; 1395 const u8 *p; 1396 1397 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); 1398 if (data->assoc_info.req_ies) 1399 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, 1400 data->assoc_info.req_ies_len); 1401 if (data->assoc_info.resp_ies) { 1402 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, 1403 data->assoc_info.resp_ies_len); 1404#ifdef CONFIG_TDLS 1405 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies, 1406 data->assoc_info.resp_ies_len); 1407#endif /* CONFIG_TDLS */ 1408#ifdef CONFIG_WNM 1409 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 1410 data->assoc_info.resp_ies_len); 1411#endif /* CONFIG_WNM */ 1412 } 1413 if (data->assoc_info.beacon_ies) 1414 wpa_hexdump(MSG_DEBUG, "beacon_ies", 1415 data->assoc_info.beacon_ies, 1416 data->assoc_info.beacon_ies_len); 1417 if (data->assoc_info.freq) 1418 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", 1419 data->assoc_info.freq); 1420 1421 p = data->assoc_info.req_ies; 1422 l = data->assoc_info.req_ies_len; 1423 1424 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ 1425 while (p && l >= 2) { 1426 len = p[1] + 2; 1427 if (len > l) { 1428 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1429 p, l); 1430 break; 1431 } 1432 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1433 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || 1434 (p[0] == WLAN_EID_RSN && p[1] >= 2)) { 1435 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) 1436 break; 1437 found = 1; 1438 wpa_find_assoc_pmkid(wpa_s); 1439 break; 1440 } 1441 l -= len; 1442 p += len; 1443 } 1444 if (!found && data->assoc_info.req_ies) 1445 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); 1446 1447#ifdef CONFIG_IEEE80211R 1448#ifdef CONFIG_SME 1449 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { 1450 u8 bssid[ETH_ALEN]; 1451 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 1452 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 1453 data->assoc_info.resp_ies, 1454 data->assoc_info.resp_ies_len, 1455 bssid) < 0) { 1456 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 1457 "Reassociation Response failed"); 1458 wpa_supplicant_deauthenticate( 1459 wpa_s, WLAN_REASON_INVALID_IE); 1460 return -1; 1461 } 1462 } 1463 1464 p = data->assoc_info.resp_ies; 1465 l = data->assoc_info.resp_ies_len; 1466 1467#ifdef CONFIG_WPS_STRICT 1468 if (p && wpa_s->current_ssid && 1469 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { 1470 struct wpabuf *wps; 1471 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); 1472 if (wps == NULL) { 1473 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " 1474 "include WPS IE in (Re)Association Response"); 1475 return -1; 1476 } 1477 1478 if (wps_validate_assoc_resp(wps) < 0) { 1479 wpabuf_free(wps); 1480 wpa_supplicant_deauthenticate( 1481 wpa_s, WLAN_REASON_INVALID_IE); 1482 return -1; 1483 } 1484 wpabuf_free(wps); 1485 } 1486#endif /* CONFIG_WPS_STRICT */ 1487 1488 /* Go through the IEs and make a copy of the MDIE, if present. */ 1489 while (p && l >= 2) { 1490 len = p[1] + 2; 1491 if (len > l) { 1492 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1493 p, l); 1494 break; 1495 } 1496 if (p[0] == WLAN_EID_MOBILITY_DOMAIN && 1497 p[1] >= MOBILITY_DOMAIN_ID_LEN) { 1498 wpa_s->sme.ft_used = 1; 1499 os_memcpy(wpa_s->sme.mobility_domain, p + 2, 1500 MOBILITY_DOMAIN_ID_LEN); 1501 break; 1502 } 1503 l -= len; 1504 p += len; 1505 } 1506#endif /* CONFIG_SME */ 1507 1508 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, 1509 data->assoc_info.resp_ies_len); 1510#endif /* CONFIG_IEEE80211R */ 1511 1512 /* WPA/RSN IE from Beacon/ProbeResp */ 1513 p = data->assoc_info.beacon_ies; 1514 l = data->assoc_info.beacon_ies_len; 1515 1516 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. 1517 */ 1518 wpa_found = rsn_found = 0; 1519 while (p && l >= 2) { 1520 len = p[1] + 2; 1521 if (len > l) { 1522 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", 1523 p, l); 1524 break; 1525 } 1526 if (!wpa_found && 1527 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1528 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { 1529 wpa_found = 1; 1530 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); 1531 } 1532 1533 if (!rsn_found && 1534 p[0] == WLAN_EID_RSN && p[1] >= 2) { 1535 rsn_found = 1; 1536 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); 1537 } 1538 1539 l -= len; 1540 p += len; 1541 } 1542 1543 if (!wpa_found && data->assoc_info.beacon_ies) 1544 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); 1545 if (!rsn_found && data->assoc_info.beacon_ies) 1546 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); 1547 if (wpa_found || rsn_found) 1548 wpa_s->ap_ies_from_associnfo = 1; 1549 1550 if (wpa_s->assoc_freq && data->assoc_info.freq && 1551 wpa_s->assoc_freq != data->assoc_info.freq) { 1552 wpa_printf(MSG_DEBUG, "Operating frequency changed from " 1553 "%u to %u MHz", 1554 wpa_s->assoc_freq, data->assoc_info.freq); 1555 wpa_supplicant_update_scan_results(wpa_s); 1556 } 1557 1558 wpa_s->assoc_freq = data->assoc_info.freq; 1559 1560 return 0; 1561} 1562 1563 1564static struct wpa_bss * wpa_supplicant_get_new_bss( 1565 struct wpa_supplicant *wpa_s, const u8 *bssid) 1566{ 1567 struct wpa_bss *bss = NULL; 1568 struct wpa_ssid *ssid = wpa_s->current_ssid; 1569 1570 if (ssid->ssid_len > 0) 1571 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len); 1572 if (!bss) 1573 bss = wpa_bss_get_bssid(wpa_s, bssid); 1574 1575 return bss; 1576} 1577 1578 1579static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s) 1580{ 1581 const u8 *bss_wpa = NULL, *bss_rsn = NULL; 1582 1583 if (!wpa_s->current_bss || !wpa_s->current_ssid) 1584 return -1; 1585 1586 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt)) 1587 return 0; 1588 1589 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss, 1590 WPA_IE_VENDOR_TYPE); 1591 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN); 1592 1593 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, 1594 bss_wpa ? 2 + bss_wpa[1] : 0) || 1595 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, 1596 bss_rsn ? 2 + bss_rsn[1] : 0)) 1597 return -1; 1598 1599 return 0; 1600} 1601 1602 1603static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, 1604 union wpa_event_data *data) 1605{ 1606 u8 bssid[ETH_ALEN]; 1607 int ft_completed; 1608 struct wpa_driver_capa capa; 1609 1610#ifdef CONFIG_AP 1611 if (wpa_s->ap_iface) { 1612 hostapd_notif_assoc(wpa_s->ap_iface->bss[0], 1613 data->assoc_info.addr, 1614 data->assoc_info.req_ies, 1615 data->assoc_info.req_ies_len, 1616 data->assoc_info.reassoc); 1617 return; 1618 } 1619#endif /* CONFIG_AP */ 1620 1621 ft_completed = wpa_ft_is_completed(wpa_s->wpa); 1622 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) 1623 return; 1624 1625 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { 1626 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID"); 1627 wpa_supplicant_deauthenticate( 1628 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1629 return; 1630 } 1631 1632 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); 1633 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) { 1634 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" 1635 MACSTR, MAC2STR(bssid)); 1636 random_add_randomness(bssid, ETH_ALEN); 1637 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); 1638 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 1639 wpas_notify_bssid_changed(wpa_s); 1640 1641 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { 1642 wpa_clear_keys(wpa_s, bssid); 1643 } 1644 if (wpa_supplicant_select_config(wpa_s) < 0) { 1645 wpa_supplicant_deauthenticate( 1646 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1647 return; 1648 } 1649 if (wpa_s->current_ssid) { 1650 struct wpa_bss *bss = NULL; 1651 1652 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 1653 if (!bss) { 1654 wpa_supplicant_update_scan_results(wpa_s); 1655 1656 /* Get the BSS from the new scan results */ 1657 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 1658 } 1659 1660 if (bss) 1661 wpa_s->current_bss = bss; 1662 } 1663 1664 if (wpa_s->conf->ap_scan == 1 && 1665 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) { 1666 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0) 1667 wpa_msg(wpa_s, MSG_WARNING, 1668 "WPA/RSN IEs not updated"); 1669 } 1670 } 1671 1672#ifdef CONFIG_SME 1673 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); 1674 wpa_s->sme.prev_bssid_set = 1; 1675#endif /* CONFIG_SME */ 1676 1677 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); 1678 if (wpa_s->current_ssid) { 1679 /* When using scanning (ap_scan=1), SIM PC/SC interface can be 1680 * initialized before association, but for other modes, 1681 * initialize PC/SC here, if the current configuration needs 1682 * smartcard or SIM/USIM. */ 1683 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); 1684 } 1685 wpa_sm_notify_assoc(wpa_s->wpa, bssid); 1686 if (wpa_s->l2) 1687 l2_packet_notify_auth_start(wpa_s->l2); 1688 1689 /* 1690 * Set portEnabled first to FALSE in order to get EAP state machine out 1691 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE 1692 * state machine may transit to AUTHENTICATING state based on obsolete 1693 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to 1694 * AUTHENTICATED without ever giving chance to EAP state machine to 1695 * reset the state. 1696 */ 1697 if (!ft_completed) { 1698 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 1699 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 1700 } 1701 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed) 1702 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 1703 /* 802.1X::portControl = Auto */ 1704 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); 1705 wpa_s->eapol_received = 0; 1706 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1707 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || 1708 (wpa_s->current_ssid && 1709 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { 1710 wpa_supplicant_cancel_auth_timeout(wpa_s); 1711 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1712 } else if (!ft_completed) { 1713 /* Timeout for receiving the first EAPOL packet */ 1714 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); 1715 } 1716 wpa_supplicant_cancel_scan(wpa_s); 1717 1718 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1719 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { 1720 /* 1721 * We are done; the driver will take care of RSN 4-way 1722 * handshake. 1723 */ 1724 wpa_supplicant_cancel_auth_timeout(wpa_s); 1725 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1726 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1727 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1728 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1729 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { 1730 /* 1731 * The driver will take care of RSN 4-way handshake, so we need 1732 * to allow EAPOL supplicant to complete its work without 1733 * waiting for WPA supplicant. 1734 */ 1735 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1736 } else if (ft_completed) { 1737 /* 1738 * FT protocol completed - make sure EAPOL state machine ends 1739 * up in authenticated. 1740 */ 1741 wpa_supplicant_cancel_auth_timeout(wpa_s); 1742 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1743 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1744 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1745 } 1746 1747 wpa_s->last_eapol_matches_bssid = 0; 1748 1749 if (wpa_s->pending_eapol_rx) { 1750 struct os_time now, age; 1751 os_get_time(&now); 1752 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age); 1753 if (age.sec == 0 && age.usec < 100000 && 1754 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == 1755 0) { 1756 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " 1757 "frame that was received just before " 1758 "association notification"); 1759 wpa_supplicant_rx_eapol( 1760 wpa_s, wpa_s->pending_eapol_rx_src, 1761 wpabuf_head(wpa_s->pending_eapol_rx), 1762 wpabuf_len(wpa_s->pending_eapol_rx)); 1763 } 1764 wpabuf_free(wpa_s->pending_eapol_rx); 1765 wpa_s->pending_eapol_rx = NULL; 1766 } 1767 1768 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1769 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 1770 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 && 1771 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) { 1772 /* Set static WEP keys again */ 1773 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); 1774 } 1775 1776#ifdef CONFIG_IBSS_RSN 1777 if (wpa_s->current_ssid && 1778 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 1779 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && 1780 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE && 1781 wpa_s->ibss_rsn == NULL) { 1782 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s); 1783 if (!wpa_s->ibss_rsn) { 1784 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN"); 1785 wpa_supplicant_deauthenticate( 1786 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1787 return; 1788 } 1789 1790 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk); 1791 } 1792#endif /* CONFIG_IBSS_RSN */ 1793 1794 wpas_wps_notify_assoc(wpa_s, bssid); 1795} 1796 1797 1798static int disconnect_reason_recoverable(u16 reason_code) 1799{ 1800 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY || 1801 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA || 1802 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA; 1803} 1804 1805 1806static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s, 1807 u16 reason_code, 1808 int locally_generated) 1809{ 1810 const u8 *bssid; 1811 1812 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 1813 /* 1814 * At least Host AP driver and a Prism3 card seemed to be 1815 * generating streams of disconnected events when configuring 1816 * IBSS for WPA-None. Ignore them for now. 1817 */ 1818 return; 1819 } 1820 1821 bssid = wpa_s->bssid; 1822 if (is_zero_ether_addr(bssid)) 1823 bssid = wpa_s->pending_bssid; 1824 1825 if (!is_zero_ether_addr(bssid) || 1826 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 1827 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR 1828 " reason=%d%s", 1829 MAC2STR(bssid), reason_code, 1830 locally_generated ? " locally_generated=1" : ""); 1831 } 1832} 1833 1834 1835static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code, 1836 int locally_generated) 1837{ 1838 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE || 1839 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 1840 return 0; /* Not in 4-way handshake with PSK */ 1841 1842 /* 1843 * It looks like connection was lost while trying to go through PSK 1844 * 4-way handshake. Filter out known disconnection cases that are caused 1845 * by something else than PSK mismatch to avoid confusing reports. 1846 */ 1847 1848 if (locally_generated) { 1849 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS) 1850 return 0; 1851 } 1852 1853 return 1; 1854} 1855 1856 1857static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s, 1858 u16 reason_code, 1859 int locally_generated) 1860{ 1861 const u8 *bssid; 1862 int authenticating; 1863 u8 prev_pending_bssid[ETH_ALEN]; 1864 struct wpa_bss *fast_reconnect = NULL; 1865 struct wpa_ssid *fast_reconnect_ssid = NULL; 1866 struct wpa_ssid *last_ssid; 1867 1868 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING; 1869 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN); 1870 1871 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 1872 /* 1873 * At least Host AP driver and a Prism3 card seemed to be 1874 * generating streams of disconnected events when configuring 1875 * IBSS for WPA-None. Ignore them for now. 1876 */ 1877 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in " 1878 "IBSS/WPA-None mode"); 1879 return; 1880 } 1881 1882 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) { 1883 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - " 1884 "pre-shared key may be incorrect"); 1885 wpas_auth_failed(wpa_s); 1886 } 1887 if (!wpa_s->auto_reconnect_disabled || 1888 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) { 1889 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to " 1890 "reconnect (wps=%d wpa_state=%d)", 1891 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS, 1892 wpa_s->wpa_state); 1893 if (wpa_s->wpa_state == WPA_COMPLETED && 1894 wpa_s->current_ssid && 1895 wpa_s->current_ssid->mode == WPAS_MODE_INFRA && 1896 !locally_generated && 1897 disconnect_reason_recoverable(reason_code)) { 1898 /* 1899 * It looks like the AP has dropped association with 1900 * us, but could allow us to get back in. Try to 1901 * reconnect to the same BSS without full scan to save 1902 * time for some common cases. 1903 */ 1904 fast_reconnect = wpa_s->current_bss; 1905 fast_reconnect_ssid = wpa_s->current_ssid; 1906 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) 1907 wpa_supplicant_req_scan(wpa_s, 0, 100000); 1908 else 1909 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new " 1910 "immediate scan"); 1911 } else { 1912 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not " 1913 "try to re-connect"); 1914 wpa_s->reassociate = 0; 1915 wpa_s->disconnected = 1; 1916 wpa_supplicant_cancel_sched_scan(wpa_s); 1917 } 1918 bssid = wpa_s->bssid; 1919 if (is_zero_ether_addr(bssid)) 1920 bssid = wpa_s->pending_bssid; 1921 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 1922 wpas_connection_failed(wpa_s, bssid); 1923 wpa_sm_notify_disassoc(wpa_s->wpa); 1924 if (locally_generated) 1925 wpa_s->disconnect_reason = -reason_code; 1926 else 1927 wpa_s->disconnect_reason = reason_code; 1928 wpas_notify_disconnect_reason(wpa_s); 1929 if (wpa_supplicant_dynamic_keys(wpa_s)) { 1930 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys"); 1931 wpa_s->keys_cleared = 0; 1932 wpa_clear_keys(wpa_s, wpa_s->bssid); 1933 } 1934 last_ssid = wpa_s->current_ssid; 1935 wpa_supplicant_mark_disassoc(wpa_s); 1936 1937 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) { 1938 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); 1939 wpa_s->current_ssid = last_ssid; 1940 } 1941 1942 if (fast_reconnect) { 1943#ifndef CONFIG_NO_SCAN_PROCESSING 1944 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS"); 1945 if (wpa_supplicant_connect(wpa_s, fast_reconnect, 1946 fast_reconnect_ssid) < 0) { 1947 /* Recover through full scan */ 1948 wpa_supplicant_req_scan(wpa_s, 0, 100000); 1949 } 1950#endif /* CONFIG_NO_SCAN_PROCESSING */ 1951 } 1952} 1953 1954 1955#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 1956void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx) 1957{ 1958 struct wpa_supplicant *wpa_s = eloop_ctx; 1959 1960 if (!wpa_s->pending_mic_error_report) 1961 return; 1962 1963 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report"); 1964 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise); 1965 wpa_s->pending_mic_error_report = 0; 1966} 1967#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 1968 1969 1970static void 1971wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s, 1972 union wpa_event_data *data) 1973{ 1974 int pairwise; 1975 struct os_time t; 1976 1977 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); 1978 pairwise = (data && data->michael_mic_failure.unicast); 1979 os_get_time(&t); 1980 if ((wpa_s->last_michael_mic_error && 1981 t.sec - wpa_s->last_michael_mic_error <= 60) || 1982 wpa_s->pending_mic_error_report) { 1983 if (wpa_s->pending_mic_error_report) { 1984 /* 1985 * Send the pending MIC error report immediately since 1986 * we are going to start countermeasures and AP better 1987 * do the same. 1988 */ 1989 wpa_sm_key_request(wpa_s->wpa, 1, 1990 wpa_s->pending_mic_error_pairwise); 1991 } 1992 1993 /* Send the new MIC error report immediately since we are going 1994 * to start countermeasures and AP better do the same. 1995 */ 1996 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 1997 1998 /* initialize countermeasures */ 1999 wpa_s->countermeasures = 1; 2000 2001 wpa_blacklist_add(wpa_s, wpa_s->bssid); 2002 2003 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started"); 2004 2005 /* 2006 * Need to wait for completion of request frame. We do not get 2007 * any callback for the message completion, so just wait a 2008 * short while and hope for the best. */ 2009 os_sleep(0, 10000); 2010 2011 wpa_drv_set_countermeasures(wpa_s, 1); 2012 wpa_supplicant_deauthenticate(wpa_s, 2013 WLAN_REASON_MICHAEL_MIC_FAILURE); 2014 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, 2015 wpa_s, NULL); 2016 eloop_register_timeout(60, 0, 2017 wpa_supplicant_stop_countermeasures, 2018 wpa_s, NULL); 2019 /* TODO: mark the AP rejected for 60 second. STA is 2020 * allowed to associate with another AP.. */ 2021 } else { 2022#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2023 if (wpa_s->mic_errors_seen) { 2024 /* 2025 * Reduce the effectiveness of Michael MIC error 2026 * reports as a means for attacking against TKIP if 2027 * more than one MIC failure is noticed with the same 2028 * PTK. We delay the transmission of the reports by a 2029 * random time between 0 and 60 seconds in order to 2030 * force the attacker wait 60 seconds before getting 2031 * the information on whether a frame resulted in a MIC 2032 * failure. 2033 */ 2034 u8 rval[4]; 2035 int sec; 2036 2037 if (os_get_random(rval, sizeof(rval)) < 0) 2038 sec = os_random() % 60; 2039 else 2040 sec = WPA_GET_BE32(rval) % 60; 2041 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error " 2042 "report %d seconds", sec); 2043 wpa_s->pending_mic_error_report = 1; 2044 wpa_s->pending_mic_error_pairwise = pairwise; 2045 eloop_cancel_timeout( 2046 wpa_supplicant_delayed_mic_error_report, 2047 wpa_s, NULL); 2048 eloop_register_timeout( 2049 sec, os_random() % 1000000, 2050 wpa_supplicant_delayed_mic_error_report, 2051 wpa_s, NULL); 2052 } else { 2053 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2054 } 2055#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2056 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2057#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2058 } 2059 wpa_s->last_michael_mic_error = t.sec; 2060 wpa_s->mic_errors_seen++; 2061} 2062 2063 2064#ifdef CONFIG_TERMINATE_ONLASTIF 2065static int any_interfaces(struct wpa_supplicant *head) 2066{ 2067 struct wpa_supplicant *wpa_s; 2068 2069 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) 2070 if (!wpa_s->interface_removed) 2071 return 1; 2072 return 0; 2073} 2074#endif /* CONFIG_TERMINATE_ONLASTIF */ 2075 2076 2077static void 2078wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, 2079 union wpa_event_data *data) 2080{ 2081 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) 2082 return; 2083 2084 switch (data->interface_status.ievent) { 2085 case EVENT_INTERFACE_ADDED: 2086 if (!wpa_s->interface_removed) 2087 break; 2088 wpa_s->interface_removed = 0; 2089 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); 2090 if (wpa_supplicant_driver_init(wpa_s) < 0) { 2091 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " 2092 "driver after interface was added"); 2093 } 2094 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 2095 break; 2096 case EVENT_INTERFACE_REMOVED: 2097 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed"); 2098 wpa_s->interface_removed = 1; 2099 wpa_supplicant_mark_disassoc(wpa_s); 2100 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2101 l2_packet_deinit(wpa_s->l2); 2102 wpa_s->l2 = NULL; 2103#ifdef CONFIG_IBSS_RSN 2104 ibss_rsn_deinit(wpa_s->ibss_rsn); 2105 wpa_s->ibss_rsn = NULL; 2106#endif /* CONFIG_IBSS_RSN */ 2107#ifdef CONFIG_TERMINATE_ONLASTIF 2108 /* check if last interface */ 2109 if (!any_interfaces(wpa_s->global->ifaces)) 2110 eloop_terminate(); 2111#endif /* CONFIG_TERMINATE_ONLASTIF */ 2112 break; 2113 } 2114} 2115 2116 2117#ifdef CONFIG_PEERKEY 2118static void 2119wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s, 2120 union wpa_event_data *data) 2121{ 2122 if (data == NULL) 2123 return; 2124 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer); 2125} 2126#endif /* CONFIG_PEERKEY */ 2127 2128 2129#ifdef CONFIG_TDLS 2130static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s, 2131 union wpa_event_data *data) 2132{ 2133 if (data == NULL) 2134 return; 2135 switch (data->tdls.oper) { 2136 case TDLS_REQUEST_SETUP: 2137 wpa_tdls_start(wpa_s->wpa, data->tdls.peer); 2138 break; 2139 case TDLS_REQUEST_TEARDOWN: 2140 wpa_tdls_send_teardown(wpa_s->wpa, data->tdls.peer, 2141 data->tdls.reason_code); 2142 break; 2143 } 2144} 2145#endif /* CONFIG_TDLS */ 2146 2147 2148#ifdef CONFIG_WNM 2149static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s, 2150 union wpa_event_data *data) 2151{ 2152 if (data == NULL) 2153 return; 2154 switch (data->wnm.oper) { 2155 case WNM_OPER_SLEEP: 2156 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request " 2157 "(action=%d, intval=%d)", 2158 data->wnm.sleep_action, data->wnm.sleep_intval); 2159 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action, 2160 data->wnm.sleep_intval, NULL); 2161 break; 2162 } 2163} 2164#endif /* CONFIG_WNM */ 2165 2166 2167#ifdef CONFIG_IEEE80211R 2168static void 2169wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s, 2170 union wpa_event_data *data) 2171{ 2172 if (data == NULL) 2173 return; 2174 2175 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies, 2176 data->ft_ies.ies_len, 2177 data->ft_ies.ft_action, 2178 data->ft_ies.target_ap, 2179 data->ft_ies.ric_ies, 2180 data->ft_ies.ric_ies_len) < 0) { 2181 /* TODO: prevent MLME/driver from trying to associate? */ 2182 } 2183} 2184#endif /* CONFIG_IEEE80211R */ 2185 2186 2187#ifdef CONFIG_IBSS_RSN 2188static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s, 2189 union wpa_event_data *data) 2190{ 2191 struct wpa_ssid *ssid; 2192 if (wpa_s->wpa_state < WPA_ASSOCIATED) 2193 return; 2194 if (data == NULL) 2195 return; 2196 ssid = wpa_s->current_ssid; 2197 if (ssid == NULL) 2198 return; 2199 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 2200 return; 2201 2202 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer); 2203} 2204#endif /* CONFIG_IBSS_RSN */ 2205 2206 2207#ifdef CONFIG_IEEE80211R 2208static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, 2209 size_t len) 2210{ 2211 const u8 *sta_addr, *target_ap_addr; 2212 u16 status; 2213 2214 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); 2215 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) 2216 return; /* only SME case supported for now */ 2217 if (len < 1 + 2 * ETH_ALEN + 2) 2218 return; 2219 if (data[0] != 2) 2220 return; /* Only FT Action Response is supported for now */ 2221 sta_addr = data + 1; 2222 target_ap_addr = data + 1 + ETH_ALEN; 2223 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); 2224 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " 2225 MACSTR " TargetAP " MACSTR " status %u", 2226 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); 2227 2228 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { 2229 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR 2230 " in FT Action Response", MAC2STR(sta_addr)); 2231 return; 2232 } 2233 2234 if (status) { 2235 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " 2236 "failure (status code %d)", status); 2237 /* TODO: report error to FT code(?) */ 2238 return; 2239 } 2240 2241 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, 2242 len - (1 + 2 * ETH_ALEN + 2), 1, 2243 target_ap_addr, NULL, 0) < 0) 2244 return; 2245 2246#ifdef CONFIG_SME 2247 { 2248 struct wpa_bss *bss; 2249 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); 2250 if (bss) 2251 wpa_s->sme.freq = bss->freq; 2252 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; 2253 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, 2254 WLAN_AUTH_FT); 2255 } 2256#endif /* CONFIG_SME */ 2257} 2258#endif /* CONFIG_IEEE80211R */ 2259 2260 2261static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, 2262 struct unprot_deauth *e) 2263{ 2264#ifdef CONFIG_IEEE80211W 2265 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " 2266 "dropped: " MACSTR " -> " MACSTR 2267 " (reason code %u)", 2268 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2269 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2270#endif /* CONFIG_IEEE80211W */ 2271} 2272 2273 2274static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, 2275 struct unprot_disassoc *e) 2276{ 2277#ifdef CONFIG_IEEE80211W 2278 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " 2279 "dropped: " MACSTR " -> " MACSTR 2280 " (reason code %u)", 2281 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2282 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2283#endif /* CONFIG_IEEE80211W */ 2284} 2285 2286 2287void wpa_supplicant_event(void *ctx, enum wpa_event_type event, 2288 union wpa_event_data *data) 2289{ 2290 struct wpa_supplicant *wpa_s = ctx; 2291 u16 reason_code = 0; 2292 int locally_generated = 0; 2293 2294 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && 2295 event != EVENT_INTERFACE_ENABLED && 2296 event != EVENT_INTERFACE_STATUS && 2297 event != EVENT_SCHED_SCAN_STOPPED) { 2298 wpa_dbg(wpa_s, MSG_DEBUG, 2299 "Ignore event %s (%d) while interface is disabled", 2300 event_to_string(event), event); 2301 return; 2302 } 2303 2304#ifndef CONFIG_NO_STDOUT_DEBUG 2305{ 2306 int level = MSG_DEBUG; 2307 2308 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) { 2309 const struct ieee80211_hdr *hdr; 2310 u16 fc; 2311 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame; 2312 fc = le_to_host16(hdr->frame_control); 2313 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 2314 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) 2315 level = MSG_EXCESSIVE; 2316 } 2317 2318 wpa_dbg(wpa_s, level, "Event %s (%d) received", 2319 event_to_string(event), event); 2320} 2321#endif /* CONFIG_NO_STDOUT_DEBUG */ 2322 2323 switch (event) { 2324 case EVENT_AUTH: 2325 sme_event_auth(wpa_s, data); 2326 break; 2327 case EVENT_ASSOC: 2328 wpa_supplicant_event_assoc(wpa_s, data); 2329 break; 2330 case EVENT_DISASSOC: 2331 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); 2332 if (data) { 2333 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 2334 data->disassoc_info.reason_code, 2335 data->disassoc_info.locally_generated ? 2336 " (locally generated)" : ""); 2337 if (data->disassoc_info.addr) 2338 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 2339 MAC2STR(data->disassoc_info.addr)); 2340 } 2341#ifdef CONFIG_AP 2342 if (wpa_s->ap_iface && data && data->disassoc_info.addr) { 2343 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], 2344 data->disassoc_info.addr); 2345 break; 2346 } 2347 if (wpa_s->ap_iface) { 2348 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in " 2349 "AP mode"); 2350 break; 2351 } 2352#endif /* CONFIG_AP */ 2353 if (data) { 2354 reason_code = data->disassoc_info.reason_code; 2355 locally_generated = 2356 data->disassoc_info.locally_generated; 2357 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", 2358 data->disassoc_info.ie, 2359 data->disassoc_info.ie_len); 2360#ifdef CONFIG_P2P 2361 wpas_p2p_disassoc_notif( 2362 wpa_s, data->disassoc_info.addr, reason_code, 2363 data->disassoc_info.ie, 2364 data->disassoc_info.ie_len, 2365 locally_generated); 2366#endif /* CONFIG_P2P */ 2367 } 2368 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2369 sme_event_disassoc(wpa_s, data); 2370 /* fall through */ 2371 case EVENT_DEAUTH: 2372 if (event == EVENT_DEAUTH) { 2373 wpa_dbg(wpa_s, MSG_DEBUG, 2374 "Deauthentication notification"); 2375 if (data) { 2376 reason_code = data->deauth_info.reason_code; 2377 locally_generated = 2378 data->deauth_info.locally_generated; 2379 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 2380 data->deauth_info.reason_code, 2381 data->deauth_info.locally_generated ? 2382 " (locally generated)" : ""); 2383 if (data->deauth_info.addr) { 2384 wpa_dbg(wpa_s, MSG_DEBUG, " * address " 2385 MACSTR, 2386 MAC2STR(data->deauth_info. 2387 addr)); 2388 } 2389 wpa_hexdump(MSG_DEBUG, 2390 "Deauthentication frame IE(s)", 2391 data->deauth_info.ie, 2392 data->deauth_info.ie_len); 2393 } 2394 } 2395#ifdef CONFIG_AP 2396 if (wpa_s->ap_iface && data && data->deauth_info.addr) { 2397 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], 2398 data->deauth_info.addr); 2399 break; 2400 } 2401 if (wpa_s->ap_iface) { 2402 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in " 2403 "AP mode"); 2404 break; 2405 } 2406#endif /* CONFIG_AP */ 2407 wpa_supplicant_event_disassoc(wpa_s, reason_code, 2408 locally_generated); 2409 if (reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED || 2410 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || 2411 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) && 2412 eapol_sm_failed(wpa_s->eapol))) 2413 wpas_auth_failed(wpa_s); 2414#ifdef CONFIG_P2P 2415 if (event == EVENT_DEAUTH && data) { 2416 if (wpas_p2p_deauth_notif(wpa_s, 2417 data->deauth_info.addr, 2418 reason_code, 2419 data->deauth_info.ie, 2420 data->deauth_info.ie_len, 2421 locally_generated) > 0) { 2422 /* 2423 * The interface was removed, so cannot 2424 * continue processing any additional 2425 * operations after this. 2426 */ 2427 break; 2428 } 2429 } 2430#endif /* CONFIG_P2P */ 2431 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code, 2432 locally_generated); 2433 break; 2434 case EVENT_MICHAEL_MIC_FAILURE: 2435 wpa_supplicant_event_michael_mic_failure(wpa_s, data); 2436 break; 2437#ifndef CONFIG_NO_SCAN_PROCESSING 2438 case EVENT_SCAN_RESULTS: 2439 wpa_supplicant_event_scan_results(wpa_s, data); 2440#ifdef CONFIG_P2P 2441 if (wpa_s->global->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled && 2442 wpa_s->global->p2p != NULL && 2443 wpa_s->wpa_state != WPA_AUTHENTICATING && 2444 wpa_s->wpa_state != WPA_ASSOCIATING) { 2445 wpa_s->global->p2p_cb_on_scan_complete = 0; 2446 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) { 2447 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation " 2448 "continued after scan result processing"); 2449 } 2450 } 2451#endif /* CONFIG_P2P */ 2452 break; 2453#endif /* CONFIG_NO_SCAN_PROCESSING */ 2454 case EVENT_ASSOCINFO: 2455 wpa_supplicant_event_associnfo(wpa_s, data); 2456 break; 2457 case EVENT_INTERFACE_STATUS: 2458 wpa_supplicant_event_interface_status(wpa_s, data); 2459 break; 2460 case EVENT_PMKID_CANDIDATE: 2461 wpa_supplicant_event_pmkid_candidate(wpa_s, data); 2462 break; 2463#ifdef CONFIG_PEERKEY 2464 case EVENT_STKSTART: 2465 wpa_supplicant_event_stkstart(wpa_s, data); 2466 break; 2467#endif /* CONFIG_PEERKEY */ 2468#ifdef CONFIG_TDLS 2469 case EVENT_TDLS: 2470 wpa_supplicant_event_tdls(wpa_s, data); 2471 break; 2472#endif /* CONFIG_TDLS */ 2473#ifdef CONFIG_WNM 2474 case EVENT_WNM: 2475 wpa_supplicant_event_wnm(wpa_s, data); 2476 break; 2477#endif /* CONFIG_WNM */ 2478#ifdef CONFIG_IEEE80211R 2479 case EVENT_FT_RESPONSE: 2480 wpa_supplicant_event_ft_response(wpa_s, data); 2481 break; 2482#endif /* CONFIG_IEEE80211R */ 2483#ifdef CONFIG_IBSS_RSN 2484 case EVENT_IBSS_RSN_START: 2485 wpa_supplicant_event_ibss_rsn_start(wpa_s, data); 2486 break; 2487#endif /* CONFIG_IBSS_RSN */ 2488 case EVENT_ASSOC_REJECT: 2489 if (data->assoc_reject.bssid) 2490 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 2491 "bssid=" MACSTR " status_code=%u", 2492 MAC2STR(data->assoc_reject.bssid), 2493 data->assoc_reject.status_code); 2494 else 2495 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 2496 "status_code=%u", 2497 data->assoc_reject.status_code); 2498 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2499 sme_event_assoc_reject(wpa_s, data); 2500 else { 2501 const u8 *bssid = data->assoc_reject.bssid; 2502 if (bssid == NULL || is_zero_ether_addr(bssid)) 2503 bssid = wpa_s->pending_bssid; 2504 wpas_connection_failed(wpa_s, bssid); 2505 wpa_supplicant_mark_disassoc(wpa_s); 2506 } 2507 break; 2508 case EVENT_AUTH_TIMED_OUT: 2509 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2510 sme_event_auth_timed_out(wpa_s, data); 2511 break; 2512 case EVENT_ASSOC_TIMED_OUT: 2513 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2514 sme_event_assoc_timed_out(wpa_s, data); 2515 break; 2516 case EVENT_TX_STATUS: 2517 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR 2518 " type=%d stype=%d", 2519 MAC2STR(data->tx_status.dst), 2520 data->tx_status.type, data->tx_status.stype); 2521#ifdef CONFIG_AP 2522 if (wpa_s->ap_iface == NULL) { 2523#ifdef CONFIG_OFFCHANNEL 2524 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 2525 data->tx_status.stype == WLAN_FC_STYPE_ACTION) 2526 offchannel_send_action_tx_status( 2527 wpa_s, data->tx_status.dst, 2528 data->tx_status.data, 2529 data->tx_status.data_len, 2530 data->tx_status.ack ? 2531 OFFCHANNEL_SEND_ACTION_SUCCESS : 2532 OFFCHANNEL_SEND_ACTION_NO_ACK); 2533#endif /* CONFIG_OFFCHANNEL */ 2534 break; 2535 } 2536#endif /* CONFIG_AP */ 2537#ifdef CONFIG_OFFCHANNEL 2538 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" 2539 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst)); 2540 /* 2541 * Catch TX status events for Action frames we sent via group 2542 * interface in GO mode. 2543 */ 2544 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 2545 data->tx_status.stype == WLAN_FC_STYPE_ACTION && 2546 os_memcmp(wpa_s->parent->pending_action_dst, 2547 data->tx_status.dst, ETH_ALEN) == 0) { 2548 offchannel_send_action_tx_status( 2549 wpa_s->parent, data->tx_status.dst, 2550 data->tx_status.data, 2551 data->tx_status.data_len, 2552 data->tx_status.ack ? 2553 OFFCHANNEL_SEND_ACTION_SUCCESS : 2554 OFFCHANNEL_SEND_ACTION_NO_ACK); 2555 break; 2556 } 2557#endif /* CONFIG_OFFCHANNEL */ 2558#ifdef CONFIG_AP 2559 switch (data->tx_status.type) { 2560 case WLAN_FC_TYPE_MGMT: 2561 ap_mgmt_tx_cb(wpa_s, data->tx_status.data, 2562 data->tx_status.data_len, 2563 data->tx_status.stype, 2564 data->tx_status.ack); 2565 break; 2566 case WLAN_FC_TYPE_DATA: 2567 ap_tx_status(wpa_s, data->tx_status.dst, 2568 data->tx_status.data, 2569 data->tx_status.data_len, 2570 data->tx_status.ack); 2571 break; 2572 } 2573#endif /* CONFIG_AP */ 2574 break; 2575#ifdef CONFIG_AP 2576 case EVENT_EAPOL_TX_STATUS: 2577 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst, 2578 data->eapol_tx_status.data, 2579 data->eapol_tx_status.data_len, 2580 data->eapol_tx_status.ack); 2581 break; 2582 case EVENT_DRIVER_CLIENT_POLL_OK: 2583 ap_client_poll_ok(wpa_s, data->client_poll.addr); 2584 break; 2585 case EVENT_RX_FROM_UNKNOWN: 2586 if (wpa_s->ap_iface == NULL) 2587 break; 2588 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr, 2589 data->rx_from_unknown.wds); 2590 break; 2591 case EVENT_CH_SWITCH: 2592 if (!data) 2593 break; 2594 if (!wpa_s->ap_iface) { 2595 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch " 2596 "event in non-AP mode"); 2597 break; 2598 } 2599 2600#ifdef CONFIG_AP 2601 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq, 2602 data->ch_switch.ht_enabled, 2603 data->ch_switch.ch_offset); 2604#endif /* CONFIG_AP */ 2605 break; 2606 case EVENT_RX_MGMT: { 2607 u16 fc, stype; 2608 const struct ieee80211_mgmt *mgmt; 2609 2610 mgmt = (const struct ieee80211_mgmt *) 2611 data->rx_mgmt.frame; 2612 fc = le_to_host16(mgmt->frame_control); 2613 stype = WLAN_FC_GET_STYPE(fc); 2614 2615 if (wpa_s->ap_iface == NULL) { 2616#ifdef CONFIG_P2P 2617 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2618 data->rx_mgmt.frame_len > 24) { 2619 const u8 *src = mgmt->sa; 2620 const u8 *ie = mgmt->u.probe_req.variable; 2621 size_t ie_len = data->rx_mgmt.frame_len - 2622 (mgmt->u.probe_req.variable - 2623 data->rx_mgmt.frame); 2624 wpas_p2p_probe_req_rx( 2625 wpa_s, src, mgmt->da, 2626 mgmt->bssid, ie, ie_len, 2627 data->rx_mgmt.ssi_signal); 2628 break; 2629 } 2630#endif /* CONFIG_P2P */ 2631 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " 2632 "management frame in non-AP mode"); 2633 break; 2634 } 2635 2636 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2637 data->rx_mgmt.frame_len > 24) { 2638 const u8 *ie = mgmt->u.probe_req.variable; 2639 size_t ie_len = data->rx_mgmt.frame_len - 2640 (mgmt->u.probe_req.variable - 2641 data->rx_mgmt.frame); 2642 2643 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da, 2644 mgmt->bssid, ie, ie_len, 2645 data->rx_mgmt.ssi_signal); 2646 } 2647 2648 ap_mgmt_rx(wpa_s, &data->rx_mgmt); 2649 break; 2650 } 2651#endif /* CONFIG_AP */ 2652 case EVENT_RX_ACTION: 2653 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR 2654 " Category=%u DataLen=%d freq=%d MHz", 2655 MAC2STR(data->rx_action.sa), 2656 data->rx_action.category, (int) data->rx_action.len, 2657 data->rx_action.freq); 2658#ifdef CONFIG_IEEE80211R 2659 if (data->rx_action.category == WLAN_ACTION_FT) { 2660 ft_rx_action(wpa_s, data->rx_action.data, 2661 data->rx_action.len); 2662 break; 2663 } 2664#endif /* CONFIG_IEEE80211R */ 2665#ifdef CONFIG_IEEE80211W 2666#ifdef CONFIG_SME 2667 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) { 2668 sme_sa_query_rx(wpa_s, data->rx_action.sa, 2669 data->rx_action.data, 2670 data->rx_action.len); 2671 break; 2672 } 2673#endif /* CONFIG_SME */ 2674#endif /* CONFIG_IEEE80211W */ 2675#ifdef CONFIG_WNM 2676 if (data->rx_action.category == WLAN_ACTION_WNM) { 2677 ieee802_11_rx_wnm_action(wpa_s, &data->rx_action); 2678 break; 2679 } 2680#endif /* CONFIG_WNM */ 2681#ifdef CONFIG_GAS 2682 if (data->rx_action.category == WLAN_ACTION_PUBLIC && 2683 gas_query_rx(wpa_s->gas, data->rx_action.da, 2684 data->rx_action.sa, data->rx_action.bssid, 2685 data->rx_action.data, data->rx_action.len, 2686 data->rx_action.freq) == 0) 2687 break; 2688#endif /* CONFIG_GAS */ 2689#ifdef CONFIG_TDLS 2690 if (data->rx_action.category == WLAN_ACTION_PUBLIC && 2691 data->rx_action.len >= 4 && 2692 data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) { 2693 wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery " 2694 "Response from " MACSTR, 2695 MAC2STR(data->rx_action.sa)); 2696 break; 2697 } 2698#endif /* CONFIG_TDLS */ 2699#ifdef CONFIG_P2P 2700 wpas_p2p_rx_action(wpa_s, data->rx_action.da, 2701 data->rx_action.sa, 2702 data->rx_action.bssid, 2703 data->rx_action.category, 2704 data->rx_action.data, 2705 data->rx_action.len, data->rx_action.freq); 2706#endif /* CONFIG_P2P */ 2707 break; 2708 case EVENT_RX_PROBE_REQ: 2709 if (data->rx_probe_req.sa == NULL || 2710 data->rx_probe_req.ie == NULL) 2711 break; 2712#ifdef CONFIG_AP 2713 if (wpa_s->ap_iface) { 2714 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], 2715 data->rx_probe_req.sa, 2716 data->rx_probe_req.da, 2717 data->rx_probe_req.bssid, 2718 data->rx_probe_req.ie, 2719 data->rx_probe_req.ie_len, 2720 data->rx_probe_req.ssi_signal); 2721 break; 2722 } 2723#endif /* CONFIG_AP */ 2724#ifdef CONFIG_P2P 2725 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa, 2726 data->rx_probe_req.da, 2727 data->rx_probe_req.bssid, 2728 data->rx_probe_req.ie, 2729 data->rx_probe_req.ie_len, 2730 data->rx_probe_req.ssi_signal); 2731#endif /* CONFIG_P2P */ 2732 break; 2733 case EVENT_REMAIN_ON_CHANNEL: 2734#ifdef CONFIG_OFFCHANNEL 2735 offchannel_remain_on_channel_cb( 2736 wpa_s, data->remain_on_channel.freq, 2737 data->remain_on_channel.duration); 2738#endif /* CONFIG_OFFCHANNEL */ 2739#ifdef CONFIG_P2P 2740 wpas_p2p_remain_on_channel_cb( 2741 wpa_s, data->remain_on_channel.freq, 2742 data->remain_on_channel.duration); 2743#endif /* CONFIG_P2P */ 2744 break; 2745 case EVENT_CANCEL_REMAIN_ON_CHANNEL: 2746#ifdef CONFIG_OFFCHANNEL 2747 offchannel_cancel_remain_on_channel_cb( 2748 wpa_s, data->remain_on_channel.freq); 2749#endif /* CONFIG_OFFCHANNEL */ 2750#ifdef CONFIG_P2P 2751 wpas_p2p_cancel_remain_on_channel_cb( 2752 wpa_s, data->remain_on_channel.freq); 2753#endif /* CONFIG_P2P */ 2754 break; 2755#ifdef CONFIG_P2P 2756 case EVENT_P2P_DEV_FOUND: { 2757 struct p2p_peer_info peer_info; 2758 2759 os_memset(&peer_info, 0, sizeof(peer_info)); 2760 if (data->p2p_dev_found.dev_addr) 2761 os_memcpy(peer_info.p2p_device_addr, 2762 data->p2p_dev_found.dev_addr, ETH_ALEN); 2763 if (data->p2p_dev_found.pri_dev_type) 2764 os_memcpy(peer_info.pri_dev_type, 2765 data->p2p_dev_found.pri_dev_type, 2766 sizeof(peer_info.pri_dev_type)); 2767 if (data->p2p_dev_found.dev_name) 2768 os_strlcpy(peer_info.device_name, 2769 data->p2p_dev_found.dev_name, 2770 sizeof(peer_info.device_name)); 2771 peer_info.config_methods = data->p2p_dev_found.config_methods; 2772 peer_info.dev_capab = data->p2p_dev_found.dev_capab; 2773 peer_info.group_capab = data->p2p_dev_found.group_capab; 2774 2775 /* 2776 * FIX: new_device=1 is not necessarily correct. We should 2777 * maintain a P2P peer database in wpa_supplicant and update 2778 * this information based on whether the peer is truly new. 2779 */ 2780 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1); 2781 break; 2782 } 2783 case EVENT_P2P_GO_NEG_REQ_RX: 2784 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src, 2785 data->p2p_go_neg_req_rx.dev_passwd_id); 2786 break; 2787 case EVENT_P2P_GO_NEG_COMPLETED: 2788 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res); 2789 break; 2790 case EVENT_P2P_PROV_DISC_REQUEST: 2791 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer, 2792 data->p2p_prov_disc_req.config_methods, 2793 data->p2p_prov_disc_req.dev_addr, 2794 data->p2p_prov_disc_req.pri_dev_type, 2795 data->p2p_prov_disc_req.dev_name, 2796 data->p2p_prov_disc_req.supp_config_methods, 2797 data->p2p_prov_disc_req.dev_capab, 2798 data->p2p_prov_disc_req.group_capab, 2799 NULL, 0); 2800 break; 2801 case EVENT_P2P_PROV_DISC_RESPONSE: 2802 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer, 2803 data->p2p_prov_disc_resp.config_methods); 2804 break; 2805 case EVENT_P2P_SD_REQUEST: 2806 wpas_sd_request(wpa_s, data->p2p_sd_req.freq, 2807 data->p2p_sd_req.sa, 2808 data->p2p_sd_req.dialog_token, 2809 data->p2p_sd_req.update_indic, 2810 data->p2p_sd_req.tlvs, 2811 data->p2p_sd_req.tlvs_len); 2812 break; 2813 case EVENT_P2P_SD_RESPONSE: 2814 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa, 2815 data->p2p_sd_resp.update_indic, 2816 data->p2p_sd_resp.tlvs, 2817 data->p2p_sd_resp.tlvs_len); 2818 break; 2819#endif /* CONFIG_P2P */ 2820 case EVENT_EAPOL_RX: 2821 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, 2822 data->eapol_rx.data, 2823 data->eapol_rx.data_len); 2824 break; 2825 case EVENT_SIGNAL_CHANGE: 2826 bgscan_notify_signal_change( 2827 wpa_s, data->signal_change.above_threshold, 2828 data->signal_change.current_signal, 2829 data->signal_change.current_noise, 2830 data->signal_change.current_txrate); 2831 break; 2832 case EVENT_INTERFACE_ENABLED: 2833 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); 2834 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 2835 wpa_supplicant_update_mac_addr(wpa_s); 2836#ifdef CONFIG_AP 2837 if (!wpa_s->ap_iface) { 2838 wpa_supplicant_set_state(wpa_s, 2839 WPA_DISCONNECTED); 2840 wpa_supplicant_req_scan(wpa_s, 0, 0); 2841 } else 2842 wpa_supplicant_set_state(wpa_s, 2843 WPA_COMPLETED); 2844#else /* CONFIG_AP */ 2845 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 2846 wpa_supplicant_req_scan(wpa_s, 0, 0); 2847#endif /* CONFIG_AP */ 2848 } 2849 break; 2850 case EVENT_INTERFACE_DISABLED: 2851 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); 2852 wpa_supplicant_mark_disassoc(wpa_s); 2853 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2854 break; 2855 case EVENT_CHANNEL_LIST_CHANGED: 2856 if (wpa_s->drv_priv == NULL) 2857 break; /* Ignore event during drv initialization */ 2858 2859 free_hw_features(wpa_s); 2860 wpa_s->hw.modes = wpa_drv_get_hw_feature_data( 2861 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags); 2862 2863#ifdef CONFIG_P2P 2864 wpas_p2p_update_channel_list(wpa_s); 2865#endif /* CONFIG_P2P */ 2866 break; 2867 case EVENT_INTERFACE_UNAVAILABLE: 2868#ifdef CONFIG_P2P 2869 wpas_p2p_interface_unavailable(wpa_s); 2870#endif /* CONFIG_P2P */ 2871 break; 2872 case EVENT_BEST_CHANNEL: 2873 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " 2874 "(%d %d %d)", 2875 data->best_chan.freq_24, data->best_chan.freq_5, 2876 data->best_chan.freq_overall); 2877 wpa_s->best_24_freq = data->best_chan.freq_24; 2878 wpa_s->best_5_freq = data->best_chan.freq_5; 2879 wpa_s->best_overall_freq = data->best_chan.freq_overall; 2880#ifdef CONFIG_P2P 2881 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, 2882 data->best_chan.freq_5, 2883 data->best_chan.freq_overall); 2884#endif /* CONFIG_P2P */ 2885 break; 2886 case EVENT_UNPROT_DEAUTH: 2887 wpa_supplicant_event_unprot_deauth(wpa_s, 2888 &data->unprot_deauth); 2889 break; 2890 case EVENT_UNPROT_DISASSOC: 2891 wpa_supplicant_event_unprot_disassoc(wpa_s, 2892 &data->unprot_disassoc); 2893 break; 2894 case EVENT_STATION_LOW_ACK: 2895#ifdef CONFIG_AP 2896 if (wpa_s->ap_iface && data) 2897 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], 2898 data->low_ack.addr); 2899#endif /* CONFIG_AP */ 2900#ifdef CONFIG_TDLS 2901 if (data) 2902 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr); 2903#endif /* CONFIG_TDLS */ 2904 break; 2905 case EVENT_IBSS_PEER_LOST: 2906#ifdef CONFIG_IBSS_RSN 2907 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer); 2908#endif /* CONFIG_IBSS_RSN */ 2909 break; 2910 case EVENT_DRIVER_GTK_REKEY: 2911 if (os_memcmp(data->driver_gtk_rekey.bssid, 2912 wpa_s->bssid, ETH_ALEN)) 2913 break; 2914 if (!wpa_s->wpa) 2915 break; 2916 wpa_sm_update_replay_ctr(wpa_s->wpa, 2917 data->driver_gtk_rekey.replay_ctr); 2918 break; 2919 case EVENT_SCHED_SCAN_STOPPED: 2920 wpa_s->sched_scanning = 0; 2921 wpa_supplicant_notify_scanning(wpa_s, 0); 2922 2923 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 2924 break; 2925 2926 /* 2927 * If we timed out, start a new sched scan to continue 2928 * searching for more SSIDs. 2929 */ 2930 if (wpa_s->sched_scan_timed_out) 2931 wpa_supplicant_req_sched_scan(wpa_s); 2932 break; 2933 case EVENT_WPS_BUTTON_PUSHED: 2934#ifdef CONFIG_WPS 2935 wpas_wps_start_pbc(wpa_s, NULL, 0); 2936#endif /* CONFIG_WPS */ 2937 break; 2938 default: 2939 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); 2940 break; 2941 } 2942} 2943