events.c revision 4530cfd4d14a77c58e35393b91e40f8dd9d62697
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 res = wpas_temp_disabled(wpa_s, ssid); 88 if (res > 0) { 89 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily " 90 "disabled for %d second(s)", res); 91 return -1; 92 } 93 94 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the " 95 "current AP"); 96 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { 97 u8 wpa_ie[80]; 98 size_t wpa_ie_len = sizeof(wpa_ie); 99 wpa_supplicant_set_suites(wpa_s, NULL, ssid, 100 wpa_ie, &wpa_ie_len); 101 } else { 102 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); 103 } 104 105 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) 106 eapol_sm_invalidate_cached_session(wpa_s->eapol); 107 old_ssid = wpa_s->current_ssid; 108 wpa_s->current_ssid = ssid; 109 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); 110 wpa_supplicant_initiate_eapol(wpa_s); 111 if (old_ssid != wpa_s->current_ssid) 112 wpas_notify_network_changed(wpa_s); 113 114 return 0; 115} 116 117 118void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx) 119{ 120 struct wpa_supplicant *wpa_s = eloop_ctx; 121 122 if (wpa_s->countermeasures) { 123 wpa_s->countermeasures = 0; 124 wpa_drv_set_countermeasures(wpa_s, 0); 125 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped"); 126 wpa_supplicant_req_scan(wpa_s, 0, 0); 127 } 128} 129 130 131void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s) 132{ 133 int bssid_changed; 134 135 wnm_bss_keep_alive_deinit(wpa_s); 136 137#ifdef CONFIG_IBSS_RSN 138 ibss_rsn_deinit(wpa_s->ibss_rsn); 139 wpa_s->ibss_rsn = NULL; 140#endif /* CONFIG_IBSS_RSN */ 141 142#ifdef CONFIG_AP 143 wpa_supplicant_ap_deinit(wpa_s); 144#endif /* CONFIG_AP */ 145 146 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 147 return; 148 149 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 150#ifdef ANDROID 151 wpa_s->conf->ap_scan = DEFAULT_AP_SCAN; 152#endif 153 bssid_changed = !is_zero_ether_addr(wpa_s->bssid); 154 os_memset(wpa_s->bssid, 0, ETH_ALEN); 155 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 156#ifdef CONFIG_SME 157 wpa_s->sme.prev_bssid_set = 0; 158#endif /* CONFIG_SME */ 159#ifdef CONFIG_P2P 160 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN); 161#endif /* CONFIG_P2P */ 162 wpa_s->current_bss = NULL; 163 wpa_s->assoc_freq = 0; 164#ifdef CONFIG_IEEE80211R 165#ifdef CONFIG_SME 166 if (wpa_s->sme.ft_ies) 167 sme_update_ft_ies(wpa_s, NULL, NULL, 0); 168#endif /* CONFIG_SME */ 169#endif /* CONFIG_IEEE80211R */ 170 171 if (bssid_changed) 172 wpas_notify_bssid_changed(wpa_s); 173 174 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 175 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 176 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 177 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 178 wpa_s->ap_ies_from_associnfo = 0; 179 wpa_s->current_ssid = NULL; 180 wpa_s->key_mgmt = 0; 181} 182 183 184static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s) 185{ 186 struct wpa_ie_data ie; 187 int pmksa_set = -1; 188 size_t i; 189 190 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 || 191 ie.pmkid == NULL) 192 return; 193 194 for (i = 0; i < ie.num_pmkid; i++) { 195 pmksa_set = pmksa_cache_set_current(wpa_s->wpa, 196 ie.pmkid + i * PMKID_LEN, 197 NULL, NULL, 0); 198 if (pmksa_set == 0) { 199 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); 200 break; 201 } 202 } 203 204 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from " 205 "PMKSA cache", pmksa_set == 0 ? "" : "not "); 206} 207 208 209static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s, 210 union wpa_event_data *data) 211{ 212 if (data == NULL) { 213 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate " 214 "event"); 215 return; 216 } 217 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR 218 " index=%d preauth=%d", 219 MAC2STR(data->pmkid_candidate.bssid), 220 data->pmkid_candidate.index, 221 data->pmkid_candidate.preauth); 222 223 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid, 224 data->pmkid_candidate.index, 225 data->pmkid_candidate.preauth); 226} 227 228 229static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s) 230{ 231 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 232 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) 233 return 0; 234 235#ifdef IEEE8021X_EAPOL 236 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA && 237 wpa_s->current_ssid && 238 !(wpa_s->current_ssid->eapol_flags & 239 (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 240 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) { 241 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either 242 * plaintext or static WEP keys). */ 243 return 0; 244 } 245#endif /* IEEE8021X_EAPOL */ 246 247 return 1; 248} 249 250 251/** 252 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC 253 * @wpa_s: pointer to wpa_supplicant data 254 * @ssid: Configuration data for the network 255 * Returns: 0 on success, -1 on failure 256 * 257 * This function is called when starting authentication with a network that is 258 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA). 259 */ 260int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s, 261 struct wpa_ssid *ssid) 262{ 263#ifdef IEEE8021X_EAPOL 264#ifdef PCSC_FUNCS 265 int aka = 0, sim = 0, type; 266 267 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL) 268 return 0; 269 270 if (ssid->eap.eap_methods == NULL) { 271 sim = 1; 272 aka = 1; 273 } else { 274 struct eap_method_type *eap = ssid->eap.eap_methods; 275 while (eap->vendor != EAP_VENDOR_IETF || 276 eap->method != EAP_TYPE_NONE) { 277 if (eap->vendor == EAP_VENDOR_IETF) { 278 if (eap->method == EAP_TYPE_SIM) 279 sim = 1; 280 else if (eap->method == EAP_TYPE_AKA || 281 eap->method == EAP_TYPE_AKA_PRIME) 282 aka = 1; 283 } 284 eap++; 285 } 286 } 287 288 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL) 289 sim = 0; 290 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL && 291 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) == 292 NULL) 293 aka = 0; 294 295 if (!sim && !aka) { 296 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to " 297 "use SIM, but neither EAP-SIM nor EAP-AKA are " 298 "enabled"); 299 return 0; 300 } 301 302 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM " 303 "(sim=%d aka=%d) - initialize PCSC", sim, aka); 304 if (sim && aka) 305 type = SCARD_TRY_BOTH; 306 else if (aka) 307 type = SCARD_USIM_ONLY; 308 else 309 type = SCARD_GSM_SIM_ONLY; 310 311 wpa_s->scard = scard_init(type, NULL); 312 if (wpa_s->scard == NULL) { 313 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM " 314 "(pcsc-lite)"); 315 return -1; 316 } 317 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); 318 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); 319#endif /* PCSC_FUNCS */ 320#endif /* IEEE8021X_EAPOL */ 321 322 return 0; 323} 324 325 326#ifndef CONFIG_NO_SCAN_PROCESSING 327static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss, 328 struct wpa_ssid *ssid) 329{ 330 int i, privacy = 0; 331 332 if (ssid->mixed_cell) 333 return 1; 334 335#ifdef CONFIG_WPS 336 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) 337 return 1; 338#endif /* CONFIG_WPS */ 339 340 for (i = 0; i < NUM_WEP_KEYS; i++) { 341 if (ssid->wep_key_len[i]) { 342 privacy = 1; 343 break; 344 } 345 } 346#ifdef IEEE8021X_EAPOL 347 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 348 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 349 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) 350 privacy = 1; 351#endif /* IEEE8021X_EAPOL */ 352 353 if (wpa_key_mgmt_wpa(ssid->key_mgmt)) 354 privacy = 1; 355 356 if (bss->caps & IEEE80211_CAP_PRIVACY) 357 return privacy; 358 return !privacy; 359} 360 361 362static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s, 363 struct wpa_ssid *ssid, 364 struct wpa_scan_res *bss) 365{ 366 struct wpa_ie_data ie; 367 int proto_match = 0; 368 const u8 *rsn_ie, *wpa_ie; 369 int ret; 370 int wep_ok; 371 372 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss); 373 if (ret >= 0) 374 return ret; 375 376 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */ 377 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) && 378 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 379 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) || 380 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)); 381 382 rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN); 383 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) { 384 proto_match++; 385 386 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) { 387 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse " 388 "failed"); 389 break; 390 } 391 392 if (wep_ok && 393 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 394 { 395 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 396 "in RSN IE"); 397 return 1; 398 } 399 400 if (!(ie.proto & ssid->proto)) { 401 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto " 402 "mismatch"); 403 break; 404 } 405 406 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 407 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK " 408 "cipher mismatch"); 409 break; 410 } 411 412 if (!(ie.group_cipher & ssid->group_cipher)) { 413 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK " 414 "cipher mismatch"); 415 break; 416 } 417 418 if (!(ie.key_mgmt & ssid->key_mgmt)) { 419 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt " 420 "mismatch"); 421 break; 422 } 423 424#ifdef CONFIG_IEEE80211W 425 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 426 ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) { 427 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt " 428 "frame protection"); 429 break; 430 } 431#endif /* CONFIG_IEEE80211W */ 432 433 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE"); 434 return 1; 435 } 436 437 wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 438 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) { 439 proto_match++; 440 441 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) { 442 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse " 443 "failed"); 444 break; 445 } 446 447 if (wep_ok && 448 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 449 { 450 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 451 "in WPA IE"); 452 return 1; 453 } 454 455 if (!(ie.proto & ssid->proto)) { 456 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto " 457 "mismatch"); 458 break; 459 } 460 461 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 462 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK " 463 "cipher mismatch"); 464 break; 465 } 466 467 if (!(ie.group_cipher & ssid->group_cipher)) { 468 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK " 469 "cipher mismatch"); 470 break; 471 } 472 473 if (!(ie.key_mgmt & ssid->key_mgmt)) { 474 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt " 475 "mismatch"); 476 break; 477 } 478 479 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE"); 480 return 1; 481 } 482 483 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie && 484 !rsn_ie) { 485 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X"); 486 return 1; 487 } 488 489 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) && 490 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) { 491 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match"); 492 return 0; 493 } 494 495 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) { 496 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2"); 497 return 1; 498 } 499 500 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with " 501 "WPA/WPA2"); 502 503 return 0; 504} 505 506 507static int freq_allowed(int *freqs, int freq) 508{ 509 int i; 510 511 if (freqs == NULL) 512 return 1; 513 514 for (i = 0; freqs[i]; i++) 515 if (freqs[i] == freq) 516 return 1; 517 return 0; 518} 519 520 521static int ht_supported(const struct hostapd_hw_modes *mode) 522{ 523 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) { 524 /* 525 * The driver did not indicate whether it supports HT. Assume 526 * it does to avoid connection issues. 527 */ 528 return 1; 529 } 530 531 /* 532 * IEEE Std 802.11n-2009 20.1.1: 533 * An HT non-AP STA shall support all EQM rates for one spatial stream. 534 */ 535 return mode->mcs_set[0] == 0xff; 536} 537 538 539static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_scan_res *bss) 540{ 541 const struct hostapd_hw_modes *mode = NULL, *modes; 542 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES }; 543 const u8 *rate_ie; 544 int i, j, k; 545 546 if (bss->freq == 0) 547 return 1; /* Cannot do matching without knowing band */ 548 549 modes = wpa_s->hw.modes; 550 if (modes == NULL) { 551 /* 552 * The driver does not provide any additional information 553 * about the utilized hardware, so allow the connection attempt 554 * to continue. 555 */ 556 return 1; 557 } 558 559 for (i = 0; i < wpa_s->hw.num_modes; i++) { 560 for (j = 0; j < modes[i].num_channels; j++) { 561 int freq = modes[i].channels[j].freq; 562 if (freq == bss->freq) { 563 if (mode && 564 mode->mode == HOSTAPD_MODE_IEEE80211G) 565 break; /* do not allow 802.11b replace 566 * 802.11g */ 567 mode = &modes[i]; 568 break; 569 } 570 } 571 } 572 573 if (mode == NULL) 574 return 0; 575 576 for (i = 0; i < (int) sizeof(scan_ie); i++) { 577 rate_ie = wpa_scan_get_ie(bss, scan_ie[i]); 578 if (rate_ie == NULL) 579 continue; 580 581 for (j = 2; j < rate_ie[1] + 2; j++) { 582 int flagged = !!(rate_ie[j] & 0x80); 583 int r = (rate_ie[j] & 0x7f) * 5; 584 585 /* 586 * IEEE Std 802.11n-2009 7.3.2.2: 587 * The new BSS Membership selector value is encoded 588 * like a legacy basic rate, but it is not a rate and 589 * only indicates if the BSS members are required to 590 * support the mandatory features of Clause 20 [HT PHY] 591 * in order to join the BSS. 592 */ 593 if (flagged && ((rate_ie[j] & 0x7f) == 594 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) { 595 if (!ht_supported(mode)) { 596 wpa_dbg(wpa_s, MSG_DEBUG, 597 " hardware does not support " 598 "HT PHY"); 599 return 0; 600 } 601 continue; 602 } 603 604 if (!flagged) 605 continue; 606 607 /* check for legacy basic rates */ 608 for (k = 0; k < mode->num_rates; k++) { 609 if (mode->rates[k] == r) 610 break; 611 } 612 if (k == mode->num_rates) { 613 /* 614 * IEEE Std 802.11-2007 7.3.2.2 demands that in 615 * order to join a BSS all required rates 616 * have to be supported by the hardware. 617 */ 618 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does " 619 "not support required rate %d.%d Mbps", 620 r / 10, r % 10); 621 return 0; 622 } 623 } 624 } 625 626 return 1; 627} 628 629 630static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s, 631 int i, struct wpa_scan_res *bss, 632 struct wpa_ssid *group) 633{ 634 const u8 *ssid_; 635 u8 wpa_ie_len, rsn_ie_len, ssid_len; 636 int wpa; 637 struct wpa_blacklist *e; 638 const u8 *ie; 639 struct wpa_ssid *ssid; 640 641 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID); 642 ssid_ = ie ? ie + 2 : (u8 *) ""; 643 ssid_len = ie ? ie[1] : 0; 644 645 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 646 wpa_ie_len = ie ? ie[1] : 0; 647 648 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN); 649 rsn_ie_len = ie ? ie[1] : 0; 650 651 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' " 652 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s", 653 i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len), 654 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, 655 wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : ""); 656 657 e = wpa_blacklist_get(wpa_s, bss->bssid); 658 if (e) { 659 int limit = 1; 660 if (wpa_supplicant_enabled_networks(wpa_s) == 1) { 661 /* 662 * When only a single network is enabled, we can 663 * trigger blacklisting on the first failure. This 664 * should not be done with multiple enabled networks to 665 * avoid getting forced to move into a worse ESS on 666 * single error if there are no other BSSes of the 667 * current ESS. 668 */ 669 limit = 0; 670 } 671 if (e->count > limit) { 672 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 673 "(count=%d limit=%d)", e->count, limit); 674 return NULL; 675 } 676 } 677 678 if (ssid_len == 0) { 679 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known"); 680 return NULL; 681 } 682 683 wpa = wpa_ie_len > 0 || rsn_ie_len > 0; 684 685 for (ssid = group; ssid; ssid = ssid->pnext) { 686 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0); 687 int res; 688 689 if (wpas_network_disabled(wpa_s, ssid)) { 690 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled"); 691 continue; 692 } 693 694 res = wpas_temp_disabled(wpa_s, ssid); 695 if (res > 0) { 696 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled " 697 "temporarily for %d second(s)", res); 698 continue; 699 } 700 701#ifdef CONFIG_WPS 702 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) { 703 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 704 "(WPS)"); 705 continue; 706 } 707 708 if (wpa && ssid->ssid_len == 0 && 709 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 710 check_ssid = 0; 711 712 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 713 /* Only allow wildcard SSID match if an AP 714 * advertises active WPS operation that matches 715 * with our mode. */ 716 check_ssid = 1; 717 if (ssid->ssid_len == 0 && 718 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 719 check_ssid = 0; 720 } 721#endif /* CONFIG_WPS */ 722 723 if (ssid->bssid_set && ssid->ssid_len == 0 && 724 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0) 725 check_ssid = 0; 726 727 if (check_ssid && 728 (ssid_len != ssid->ssid_len || 729 os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) { 730 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch"); 731 continue; 732 } 733 734 if (ssid->bssid_set && 735 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) { 736 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch"); 737 continue; 738 } 739 740 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss)) 741 continue; 742 743 if (!wpa && 744 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 745 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) && 746 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) { 747 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network " 748 "not allowed"); 749 continue; 750 } 751 752 if (!wpa_supplicant_match_privacy(bss, ssid)) { 753 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy " 754 "mismatch"); 755 continue; 756 } 757 758 if (bss->caps & IEEE80211_CAP_IBSS) { 759 wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) " 760 "network"); 761 continue; 762 } 763 764 if (!freq_allowed(ssid->freq_list, bss->freq)) { 765 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not " 766 "allowed"); 767 continue; 768 } 769 770 if (!rate_match(wpa_s, bss)) { 771 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do " 772 "not match"); 773 continue; 774 } 775 776#ifdef CONFIG_P2P 777 /* 778 * TODO: skip the AP if its P2P IE has Group Formation 779 * bit set in the P2P Group Capability Bitmap and we 780 * are not in Group Formation with that device. 781 */ 782#endif /* CONFIG_P2P */ 783 784 /* Matching configuration found */ 785 return ssid; 786 } 787 788 /* No matching configuration found */ 789 return NULL; 790} 791 792 793static struct wpa_bss * 794wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, 795 struct wpa_scan_results *scan_res, 796 struct wpa_ssid *group, 797 struct wpa_ssid **selected_ssid) 798{ 799 size_t i; 800 801 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d", 802 group->priority); 803 804 for (i = 0; i < scan_res->num; i++) { 805 struct wpa_scan_res *bss = scan_res->res[i]; 806 const u8 *ie, *ssid; 807 u8 ssid_len; 808 809 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group); 810 if (!*selected_ssid) 811 continue; 812 813 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID); 814 ssid = ie ? ie + 2 : (u8 *) ""; 815 ssid_len = ie ? ie[1] : 0; 816 817 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR 818 " ssid='%s'", 819 MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len)); 820 return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len); 821 } 822 823 return NULL; 824} 825 826 827static struct wpa_bss * 828wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s, 829 struct wpa_scan_results *scan_res, 830 struct wpa_ssid **selected_ssid) 831{ 832 struct wpa_bss *selected = NULL; 833 int prio; 834 835 while (selected == NULL) { 836 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 837 selected = wpa_supplicant_select_bss( 838 wpa_s, scan_res, wpa_s->conf->pssid[prio], 839 selected_ssid); 840 if (selected) 841 break; 842 } 843 844 if (selected == NULL && wpa_s->blacklist && 845 !wpa_s->countermeasures) { 846 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear " 847 "blacklist and try again"); 848 wpa_blacklist_clear(wpa_s); 849 wpa_s->blacklist_cleared++; 850 } else if (selected == NULL) 851 break; 852 } 853 854 return selected; 855} 856 857 858static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s, 859 int timeout_sec, int timeout_usec) 860{ 861 if (!wpa_supplicant_enabled_networks(wpa_s)) { 862 /* 863 * No networks are enabled; short-circuit request so 864 * we don't wait timeout seconds before transitioning 865 * to INACTIVE state. 866 */ 867 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); 868 return; 869 } 870 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec); 871} 872 873 874int wpa_supplicant_connect(struct wpa_supplicant *wpa_s, 875 struct wpa_bss *selected, 876 struct wpa_ssid *ssid) 877{ 878 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) { 879 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP 880 "PBC session overlap"); 881#ifdef CONFIG_P2P 882 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1) 883 return -1; 884#endif /* CONFIG_P2P */ 885 886#ifdef CONFIG_WPS 887 wpas_wps_cancel(wpa_s); 888#endif /* CONFIG_WPS */ 889 return -1; 890 } 891 892 /* 893 * Do not trigger new association unless the BSSID has changed or if 894 * reassociation is requested. If we are in process of associating with 895 * the selected BSSID, do not trigger new attempt. 896 */ 897 if (wpa_s->reassociate || 898 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 && 899 ((wpa_s->wpa_state != WPA_ASSOCIATING && 900 wpa_s->wpa_state != WPA_AUTHENTICATING) || 901 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) != 902 0))) { 903 if (wpa_supplicant_scard_init(wpa_s, ssid)) { 904 wpa_supplicant_req_new_scan(wpa_s, 10, 0); 905 return 0; 906 } 907 wpa_msg(wpa_s, MSG_DEBUG, "Request association: " 908 "reassociate: %d selected: "MACSTR " bssid: " MACSTR 909 " pending: " MACSTR " wpa_state: %s", 910 wpa_s->reassociate, MAC2STR(selected->bssid), 911 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), 912 wpa_supplicant_state_txt(wpa_s->wpa_state)); 913 wpa_supplicant_associate(wpa_s, selected, ssid); 914 } else { 915 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the " 916 "selected AP"); 917 } 918 919 return 0; 920} 921 922 923static struct wpa_ssid * 924wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s) 925{ 926 int prio; 927 struct wpa_ssid *ssid; 928 929 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 930 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext) 931 { 932 if (wpas_network_disabled(wpa_s, ssid)) 933 continue; 934 if (ssid->mode == IEEE80211_MODE_IBSS || 935 ssid->mode == IEEE80211_MODE_AP) 936 return ssid; 937 } 938 } 939 return NULL; 940} 941 942 943/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based 944 * on BSS added and BSS changed events */ 945static void wpa_supplicant_rsn_preauth_scan_results( 946 struct wpa_supplicant *wpa_s) 947{ 948 struct wpa_bss *bss; 949 950 if (rsn_preauth_scan_results(wpa_s->wpa) < 0) 951 return; 952 953 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 954 const u8 *ssid, *rsn; 955 956 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID); 957 if (ssid == NULL) 958 continue; 959 960 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); 961 if (rsn == NULL) 962 continue; 963 964 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn); 965 } 966 967} 968 969 970static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s, 971 struct wpa_bss *selected, 972 struct wpa_ssid *ssid, 973 struct wpa_scan_results *scan_res) 974{ 975 size_t i; 976 struct wpa_scan_res *current_bss = NULL; 977 int min_diff; 978 979 if (wpa_s->reassociate) 980 return 1; /* explicit request to reassociate */ 981 if (wpa_s->wpa_state < WPA_ASSOCIATED) 982 return 1; /* we are not associated; continue */ 983 if (wpa_s->current_ssid == NULL) 984 return 1; /* unknown current SSID */ 985 if (wpa_s->current_ssid != ssid) 986 return 1; /* different network block */ 987 988 if (wpas_driver_bss_selection(wpa_s)) 989 return 0; /* Driver-based roaming */ 990 991 for (i = 0; i < scan_res->num; i++) { 992 struct wpa_scan_res *res = scan_res->res[i]; 993 const u8 *ie; 994 if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0) 995 continue; 996 997 ie = wpa_scan_get_ie(res, WLAN_EID_SSID); 998 if (ie == NULL) 999 continue; 1000 if (ie[1] != wpa_s->current_ssid->ssid_len || 1001 os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0) 1002 continue; 1003 current_bss = res; 1004 break; 1005 } 1006 1007 if (!current_bss) 1008 return 1; /* current BSS not seen in scan results */ 1009 1010#ifndef CONFIG_NO_ROAMING 1011 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation"); 1012 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d", 1013 MAC2STR(current_bss->bssid), current_bss->level); 1014 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d", 1015 MAC2STR(selected->bssid), selected->level); 1016 1017 if (wpa_s->current_ssid->bssid_set && 1018 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) == 1019 0) { 1020 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS " 1021 "has preferred BSSID"); 1022 return 1; 1023 } 1024 1025 min_diff = 2; 1026 if (current_bss->level < 0) { 1027 if (current_bss->level < -85) 1028 min_diff = 1; 1029 else if (current_bss->level < -80) 1030 min_diff = 2; 1031 else if (current_bss->level < -75) 1032 min_diff = 3; 1033 else if (current_bss->level < -70) 1034 min_diff = 4; 1035 else 1036 min_diff = 5; 1037 } 1038 if (abs(current_bss->level - selected->level) < min_diff) { 1039 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference " 1040 "in signal level"); 1041 return 0; 1042 } 1043 1044 return 1; 1045#else /* CONFIG_NO_ROAMING */ 1046 return 0; 1047#endif /* CONFIG_NO_ROAMING */ 1048} 1049 1050 1051/* Return < 0 if no scan results could be fetched or if scan results should not 1052 * be shared with other virtual interfaces. */ 1053#ifdef ANDROID_P2P 1054static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1055 union wpa_event_data *data, int suppress_event) 1056#else 1057static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1058 union wpa_event_data *data) 1059#endif 1060{ 1061 struct wpa_bss *selected; 1062 struct wpa_ssid *ssid = NULL; 1063 struct wpa_scan_results *scan_res; 1064 int ap = 0; 1065#ifndef CONFIG_NO_RANDOM_POOL 1066 size_t i, num; 1067#endif /* CONFIG_NO_RANDOM_POOL */ 1068 1069#ifdef CONFIG_AP 1070 if (wpa_s->ap_iface) 1071 ap = 1; 1072#endif /* CONFIG_AP */ 1073 1074 wpa_supplicant_notify_scanning(wpa_s, 0); 1075 1076#ifdef CONFIG_P2P 1077#ifdef ANDROID_P2P 1078 if (p2p_search_pending(wpa_s->global->p2p) && !wpa_s->global->p2p_disabled && 1079#else 1080 if (wpa_s->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled && 1081#endif 1082 wpa_s->global->p2p != NULL && !wpa_s->sta_scan_pending) { 1083 wpa_s->p2p_cb_on_scan_complete = 0; 1084 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) { 1085 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation " 1086 "stopped scan processing"); 1087 return -1; 1088 } 1089 } 1090 wpa_s->sta_scan_pending = 0; 1091#endif /* CONFIG_P2P */ 1092 1093 scan_res = wpa_supplicant_get_scan_results(wpa_s, 1094 data ? &data->scan_info : 1095 NULL, 1); 1096 if (scan_res == NULL) { 1097 if (wpa_s->conf->ap_scan == 2 || ap) 1098 return -1; 1099 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try " 1100 "scanning again"); 1101 wpa_supplicant_req_new_scan(wpa_s, 1, 0); 1102 return -1; 1103 } 1104 1105#ifndef CONFIG_NO_RANDOM_POOL 1106 num = scan_res->num; 1107 if (num > 10) 1108 num = 10; 1109 for (i = 0; i < num; i++) { 1110 u8 buf[5]; 1111 struct wpa_scan_res *res = scan_res->res[i]; 1112 buf[0] = res->bssid[5]; 1113 buf[1] = res->qual & 0xff; 1114 buf[2] = res->noise & 0xff; 1115 buf[3] = res->level & 0xff; 1116 buf[4] = res->tsf & 0xff; 1117 random_add_randomness(buf, sizeof(buf)); 1118 } 1119#endif /* CONFIG_NO_RANDOM_POOL */ 1120 1121 if (wpa_s->scan_res_handler) { 1122 void (*scan_res_handler)(struct wpa_supplicant *wpa_s, 1123 struct wpa_scan_results *scan_res); 1124 1125 scan_res_handler = wpa_s->scan_res_handler; 1126 wpa_s->scan_res_handler = NULL; 1127 scan_res_handler(wpa_s, scan_res); 1128 1129 wpa_scan_results_free(scan_res); 1130 return -2; 1131 } 1132 1133 if (ap) { 1134 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode"); 1135#ifdef CONFIG_AP 1136 if (wpa_s->ap_iface->scan_cb) 1137 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface); 1138#endif /* CONFIG_AP */ 1139 wpa_scan_results_free(scan_res); 1140 return 0; 1141 } 1142#ifdef ANDROID_P2P 1143 if(!suppress_event) 1144 { 1145 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available"); 1146 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); 1147 wpas_notify_scan_results(wpa_s); 1148 } 1149#else 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#endif 1154 1155 wpas_notify_scan_done(wpa_s, 1); 1156 1157 if (sme_proc_obss_scan(wpa_s) > 0) { 1158 wpa_scan_results_free(scan_res); 1159 return 0; 1160 } 1161 1162 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) { 1163 wpa_scan_results_free(scan_res); 1164 return 0; 1165 } 1166 1167 if (autoscan_notify_scan(wpa_s, scan_res)) { 1168 wpa_scan_results_free(scan_res); 1169 return 0; 1170 } 1171 1172 if (wpa_s->disconnected) { 1173 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 1174 wpa_scan_results_free(scan_res); 1175 return 0; 1176 } 1177 1178 if (!wpas_driver_bss_selection(wpa_s) && 1179 bgscan_notify_scan(wpa_s, scan_res) == 1) { 1180 wpa_scan_results_free(scan_res); 1181 return 0; 1182 } 1183 1184 wpas_wps_update_ap_info(wpa_s, scan_res); 1185 1186 selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid); 1187 1188 if (selected) { 1189 int skip; 1190 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid, 1191 scan_res); 1192 wpa_scan_results_free(scan_res); 1193 if (skip) { 1194 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1195 return 0; 1196 } 1197 1198 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) { 1199 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed"); 1200 return -1; 1201 } 1202 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1203 } else { 1204 wpa_scan_results_free(scan_res); 1205 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found"); 1206 ssid = wpa_supplicant_pick_new_network(wpa_s); 1207 if (ssid) { 1208 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network"); 1209 wpa_supplicant_associate(wpa_s, NULL, ssid); 1210 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1211 } else { 1212 int timeout_sec = wpa_s->scan_interval; 1213 int timeout_usec = 0; 1214#ifdef CONFIG_P2P 1215 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1) 1216 return 0; 1217 1218 if (wpa_s->p2p_in_provisioning) { 1219 /* 1220 * Use shorter wait during P2P Provisioning 1221 * state to speed up group formation. 1222 */ 1223 timeout_sec = 0; 1224 timeout_usec = 250000; 1225 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1226 timeout_usec); 1227 return 0; 1228 } 1229#endif /* CONFIG_P2P */ 1230#ifdef CONFIG_INTERWORKING 1231 if (wpa_s->conf->auto_interworking && 1232 wpa_s->conf->interworking && 1233 wpa_s->conf->cred) { 1234 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: " 1235 "start ANQP fetch since no matching " 1236 "networks found"); 1237 wpa_s->network_select = 1; 1238 wpa_s->auto_network_select = 1; 1239 interworking_start_fetch_anqp(wpa_s); 1240 return 0; 1241 } 1242#endif /* CONFIG_INTERWORKING */ 1243 if (wpa_supplicant_req_sched_scan(wpa_s)) 1244 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1245 timeout_usec); 1246 } 1247 } 1248 return 0; 1249} 1250 1251 1252static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1253 union wpa_event_data *data) 1254{ 1255 const char *rn, *rn2; 1256 struct wpa_supplicant *ifs; 1257#ifdef ANDROID_P2P 1258 if (_wpa_supplicant_event_scan_results(wpa_s, data, 0) < 0) { 1259#else 1260 if (_wpa_supplicant_event_scan_results(wpa_s, data) < 0) { 1261#endif 1262 /* 1263 * If no scan results could be fetched, then no need to 1264 * notify those interfaces that did not actually request 1265 * this scan. 1266 */ 1267 return; 1268 } 1269 1270 /* 1271 * Check other interfaces to see if they have the same radio-name. If 1272 * so, they get updated with this same scan info. 1273 */ 1274 if (!wpa_s->driver->get_radio_name) 1275 return; 1276 1277 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv); 1278 if (rn == NULL || rn[0] == '\0') 1279 return; 1280 1281 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces " 1282 "sharing same radio (%s) in event_scan_results", rn); 1283 1284 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) { 1285 if (ifs == wpa_s || !ifs->driver->get_radio_name) 1286 continue; 1287 1288 rn2 = ifs->driver->get_radio_name(ifs->drv_priv); 1289 if (rn2 && os_strcmp(rn, rn2) == 0) { 1290 wpa_printf(MSG_DEBUG, "%s: Updating scan results from " 1291 "sibling", ifs->ifname); 1292#ifdef ANDROID_P2P 1293 if ( (ifs->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) || (ifs->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)) { 1294 /* Do not update the scan results from STA interface to p2p interfaces */ 1295 wpa_printf(MSG_DEBUG, "Not Updating scan results on interface %s from " 1296 "sibling %s", ifs->ifname, wpa_s->ifname); 1297 continue; 1298 } 1299 else { 1300 /* P2P_FIND will result in too many SCAN_RESULT_EVENTS within 1301 * no time. Avoid announcing it to application as it may not 1302 * be that useful (since results will be that of only 1,6,11). 1303 * over to any other interface as it 1304 */ 1305 if(p2p_search_in_progress(wpa_s->global->p2p)) 1306 _wpa_supplicant_event_scan_results(ifs, data, 1); 1307 else 1308 _wpa_supplicant_event_scan_results(ifs, data, 0); 1309 } 1310#else 1311 _wpa_supplicant_event_scan_results(ifs, data); 1312#endif 1313 } 1314 } 1315} 1316 1317#endif /* CONFIG_NO_SCAN_PROCESSING */ 1318 1319 1320#ifdef CONFIG_WNM 1321 1322static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx) 1323{ 1324 struct wpa_supplicant *wpa_s = eloop_ctx; 1325 1326 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1327 return; 1328 1329 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR, 1330 MAC2STR(wpa_s->bssid)); 1331 /* TODO: could skip this if normal data traffic has been sent */ 1332 /* TODO: Consider using some more appropriate data frame for this */ 1333 if (wpa_s->l2) 1334 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, (u8 *) "", 0); 1335 1336#ifdef CONFIG_SME 1337 if (wpa_s->sme.bss_max_idle_period) { 1338 unsigned int msec; 1339 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */ 1340 if (msec > 100) 1341 msec -= 100; 1342 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1343 wnm_bss_keep_alive, wpa_s, NULL); 1344 } 1345#endif /* CONFIG_SME */ 1346} 1347 1348 1349static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s, 1350 const u8 *ies, size_t ies_len) 1351{ 1352 struct ieee802_11_elems elems; 1353 1354 if (ies == NULL) 1355 return; 1356 1357 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 1358 return; 1359 1360#ifdef CONFIG_SME 1361 if (elems.bss_max_idle_period) { 1362 unsigned int msec; 1363 wpa_s->sme.bss_max_idle_period = 1364 WPA_GET_LE16(elems.bss_max_idle_period); 1365 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 " 1366 "TU)%s", wpa_s->sme.bss_max_idle_period, 1367 (elems.bss_max_idle_period[2] & 0x01) ? 1368 " (protected keep-live required)" : ""); 1369 if (wpa_s->sme.bss_max_idle_period == 0) 1370 wpa_s->sme.bss_max_idle_period = 1; 1371 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) { 1372 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1373 /* msec times 1000 */ 1374 msec = wpa_s->sme.bss_max_idle_period * 1024; 1375 if (msec > 100) 1376 msec -= 100; 1377 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1378 wnm_bss_keep_alive, wpa_s, 1379 NULL); 1380 } 1381 } 1382#endif /* CONFIG_SME */ 1383} 1384 1385#endif /* CONFIG_WNM */ 1386 1387 1388void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s) 1389{ 1390#ifdef CONFIG_WNM 1391 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1392#endif /* CONFIG_WNM */ 1393} 1394 1395 1396static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s, 1397 union wpa_event_data *data) 1398{ 1399 int l, len, found = 0, wpa_found, rsn_found; 1400 const u8 *p; 1401 1402 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); 1403 if (data->assoc_info.req_ies) 1404 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, 1405 data->assoc_info.req_ies_len); 1406 if (data->assoc_info.resp_ies) { 1407 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, 1408 data->assoc_info.resp_ies_len); 1409#ifdef CONFIG_TDLS 1410 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies, 1411 data->assoc_info.resp_ies_len); 1412#endif /* CONFIG_TDLS */ 1413#ifdef CONFIG_WNM 1414 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 1415 data->assoc_info.resp_ies_len); 1416#endif /* CONFIG_WNM */ 1417 } 1418 if (data->assoc_info.beacon_ies) 1419 wpa_hexdump(MSG_DEBUG, "beacon_ies", 1420 data->assoc_info.beacon_ies, 1421 data->assoc_info.beacon_ies_len); 1422 if (data->assoc_info.freq) 1423 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", 1424 data->assoc_info.freq); 1425 1426 p = data->assoc_info.req_ies; 1427 l = data->assoc_info.req_ies_len; 1428 1429 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ 1430 while (p && l >= 2) { 1431 len = p[1] + 2; 1432 if (len > l) { 1433 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1434 p, l); 1435 break; 1436 } 1437 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1438 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || 1439 (p[0] == WLAN_EID_RSN && p[1] >= 2)) { 1440 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) 1441 break; 1442 found = 1; 1443 wpa_find_assoc_pmkid(wpa_s); 1444 break; 1445 } 1446 l -= len; 1447 p += len; 1448 } 1449 if (!found && data->assoc_info.req_ies) 1450 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); 1451 1452#ifdef CONFIG_IEEE80211R 1453#ifdef CONFIG_SME 1454 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { 1455 u8 bssid[ETH_ALEN]; 1456 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 1457 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 1458 data->assoc_info.resp_ies, 1459 data->assoc_info.resp_ies_len, 1460 bssid) < 0) { 1461 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 1462 "Reassociation Response failed"); 1463 wpa_supplicant_deauthenticate( 1464 wpa_s, WLAN_REASON_INVALID_IE); 1465 return -1; 1466 } 1467 } 1468 1469 p = data->assoc_info.resp_ies; 1470 l = data->assoc_info.resp_ies_len; 1471 1472#ifdef CONFIG_WPS_STRICT 1473 if (p && wpa_s->current_ssid && 1474 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { 1475 struct wpabuf *wps; 1476 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); 1477 if (wps == NULL) { 1478 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " 1479 "include WPS IE in (Re)Association Response"); 1480 return -1; 1481 } 1482 1483 if (wps_validate_assoc_resp(wps) < 0) { 1484 wpabuf_free(wps); 1485 wpa_supplicant_deauthenticate( 1486 wpa_s, WLAN_REASON_INVALID_IE); 1487 return -1; 1488 } 1489 wpabuf_free(wps); 1490 } 1491#endif /* CONFIG_WPS_STRICT */ 1492 1493 /* Go through the IEs and make a copy of the MDIE, if present. */ 1494 while (p && l >= 2) { 1495 len = p[1] + 2; 1496 if (len > l) { 1497 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1498 p, l); 1499 break; 1500 } 1501 if (p[0] == WLAN_EID_MOBILITY_DOMAIN && 1502 p[1] >= MOBILITY_DOMAIN_ID_LEN) { 1503 wpa_s->sme.ft_used = 1; 1504 os_memcpy(wpa_s->sme.mobility_domain, p + 2, 1505 MOBILITY_DOMAIN_ID_LEN); 1506 break; 1507 } 1508 l -= len; 1509 p += len; 1510 } 1511#endif /* CONFIG_SME */ 1512 1513 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, 1514 data->assoc_info.resp_ies_len); 1515#endif /* CONFIG_IEEE80211R */ 1516 1517 /* WPA/RSN IE from Beacon/ProbeResp */ 1518 p = data->assoc_info.beacon_ies; 1519 l = data->assoc_info.beacon_ies_len; 1520 1521 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. 1522 */ 1523 wpa_found = rsn_found = 0; 1524 while (p && l >= 2) { 1525 len = p[1] + 2; 1526 if (len > l) { 1527 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", 1528 p, l); 1529 break; 1530 } 1531 if (!wpa_found && 1532 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1533 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { 1534 wpa_found = 1; 1535 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); 1536 } 1537 1538 if (!rsn_found && 1539 p[0] == WLAN_EID_RSN && p[1] >= 2) { 1540 rsn_found = 1; 1541 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); 1542 } 1543 1544 l -= len; 1545 p += len; 1546 } 1547 1548 if (!wpa_found && data->assoc_info.beacon_ies) 1549 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); 1550 if (!rsn_found && data->assoc_info.beacon_ies) 1551 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); 1552 if (wpa_found || rsn_found) 1553 wpa_s->ap_ies_from_associnfo = 1; 1554 1555 if (wpa_s->assoc_freq && data->assoc_info.freq && 1556 wpa_s->assoc_freq != data->assoc_info.freq) { 1557 wpa_printf(MSG_DEBUG, "Operating frequency changed from " 1558 "%u to %u MHz", 1559 wpa_s->assoc_freq, data->assoc_info.freq); 1560 wpa_supplicant_update_scan_results(wpa_s); 1561 } 1562 1563 wpa_s->assoc_freq = data->assoc_info.freq; 1564 1565 return 0; 1566} 1567 1568 1569static struct wpa_bss * wpa_supplicant_get_new_bss( 1570 struct wpa_supplicant *wpa_s, const u8 *bssid) 1571{ 1572 struct wpa_bss *bss = NULL; 1573 struct wpa_ssid *ssid = wpa_s->current_ssid; 1574 1575 if (ssid->ssid_len > 0) 1576 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len); 1577 if (!bss) 1578 bss = wpa_bss_get_bssid(wpa_s, bssid); 1579 1580 return bss; 1581} 1582 1583 1584static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s) 1585{ 1586 const u8 *bss_wpa = NULL, *bss_rsn = NULL; 1587 1588 if (!wpa_s->current_bss || !wpa_s->current_ssid) 1589 return -1; 1590 1591 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt)) 1592 return 0; 1593 1594 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss, 1595 WPA_IE_VENDOR_TYPE); 1596 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN); 1597 1598 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, 1599 bss_wpa ? 2 + bss_wpa[1] : 0) || 1600 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, 1601 bss_rsn ? 2 + bss_rsn[1] : 0)) 1602 return -1; 1603 1604 return 0; 1605} 1606 1607 1608static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, 1609 union wpa_event_data *data) 1610{ 1611 u8 bssid[ETH_ALEN]; 1612 int ft_completed; 1613 struct wpa_driver_capa capa; 1614 1615#ifdef CONFIG_AP 1616 if (wpa_s->ap_iface) { 1617 hostapd_notif_assoc(wpa_s->ap_iface->bss[0], 1618 data->assoc_info.addr, 1619 data->assoc_info.req_ies, 1620 data->assoc_info.req_ies_len, 1621 data->assoc_info.reassoc); 1622 return; 1623 } 1624#endif /* CONFIG_AP */ 1625 1626 ft_completed = wpa_ft_is_completed(wpa_s->wpa); 1627 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) 1628 return; 1629 1630 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { 1631 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID"); 1632 wpa_supplicant_disassociate( 1633 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1634 return; 1635 } 1636 1637 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); 1638 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) { 1639 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" 1640 MACSTR, MAC2STR(bssid)); 1641 random_add_randomness(bssid, ETH_ALEN); 1642 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); 1643 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 1644 wpas_notify_bssid_changed(wpa_s); 1645 1646 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { 1647 wpa_clear_keys(wpa_s, bssid); 1648 } 1649 if (wpa_supplicant_select_config(wpa_s) < 0) { 1650 wpa_supplicant_disassociate( 1651 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1652 return; 1653 } 1654 if (wpa_s->current_ssid) { 1655 struct wpa_bss *bss = NULL; 1656 1657 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 1658 if (!bss) { 1659 wpa_supplicant_update_scan_results(wpa_s); 1660 1661 /* Get the BSS from the new scan results */ 1662 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 1663 } 1664 1665 if (bss) 1666 wpa_s->current_bss = bss; 1667 } 1668 1669 if (wpa_s->conf->ap_scan == 1 && 1670 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) { 1671 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0) 1672 wpa_msg(wpa_s, MSG_WARNING, 1673 "WPA/RSN IEs not updated"); 1674 } 1675 } 1676 1677#ifdef CONFIG_SME 1678 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); 1679 wpa_s->sme.prev_bssid_set = 1; 1680#endif /* CONFIG_SME */ 1681 1682 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); 1683 if (wpa_s->current_ssid) { 1684 /* When using scanning (ap_scan=1), SIM PC/SC interface can be 1685 * initialized before association, but for other modes, 1686 * initialize PC/SC here, if the current configuration needs 1687 * smartcard or SIM/USIM. */ 1688 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); 1689 } 1690 wpa_sm_notify_assoc(wpa_s->wpa, bssid); 1691 if (wpa_s->l2) 1692 l2_packet_notify_auth_start(wpa_s->l2); 1693 1694 /* 1695 * Set portEnabled first to FALSE in order to get EAP state machine out 1696 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE 1697 * state machine may transit to AUTHENTICATING state based on obsolete 1698 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to 1699 * AUTHENTICATED without ever giving chance to EAP state machine to 1700 * reset the state. 1701 */ 1702 if (!ft_completed) { 1703 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 1704 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 1705 } 1706 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed) 1707 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 1708 /* 802.1X::portControl = Auto */ 1709 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); 1710 wpa_s->eapol_received = 0; 1711 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1712 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || 1713 (wpa_s->current_ssid && 1714 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { 1715 wpa_supplicant_cancel_auth_timeout(wpa_s); 1716 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1717 } else if (!ft_completed) { 1718 /* Timeout for receiving the first EAPOL packet */ 1719 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); 1720 } 1721 wpa_supplicant_cancel_scan(wpa_s); 1722 1723 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1724 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { 1725 /* 1726 * We are done; the driver will take care of RSN 4-way 1727 * handshake. 1728 */ 1729 wpa_supplicant_cancel_auth_timeout(wpa_s); 1730 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1731 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1732 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1733 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1734 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { 1735 /* 1736 * The driver will take care of RSN 4-way handshake, so we need 1737 * to allow EAPOL supplicant to complete its work without 1738 * waiting for WPA supplicant. 1739 */ 1740 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1741 } else if (ft_completed) { 1742 /* 1743 * FT protocol completed - make sure EAPOL state machine ends 1744 * up in authenticated. 1745 */ 1746 wpa_supplicant_cancel_auth_timeout(wpa_s); 1747 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1748 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1749 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1750 } 1751 1752 if (wpa_s->pending_eapol_rx) { 1753 struct os_time now, age; 1754 os_get_time(&now); 1755 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age); 1756 if (age.sec == 0 && age.usec < 100000 && 1757 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == 1758 0) { 1759 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " 1760 "frame that was received just before " 1761 "association notification"); 1762 wpa_supplicant_rx_eapol( 1763 wpa_s, wpa_s->pending_eapol_rx_src, 1764 wpabuf_head(wpa_s->pending_eapol_rx), 1765 wpabuf_len(wpa_s->pending_eapol_rx)); 1766 } 1767 wpabuf_free(wpa_s->pending_eapol_rx); 1768 wpa_s->pending_eapol_rx = NULL; 1769 } 1770 1771 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1772 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 1773 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 && 1774 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) { 1775 /* Set static WEP keys again */ 1776 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); 1777 } 1778 1779#ifdef CONFIG_IBSS_RSN 1780 if (wpa_s->current_ssid && 1781 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 1782 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && 1783 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE && 1784 wpa_s->ibss_rsn == NULL) { 1785 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s); 1786 if (!wpa_s->ibss_rsn) { 1787 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN"); 1788 wpa_supplicant_deauthenticate( 1789 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1790 return; 1791 } 1792 1793 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk); 1794 } 1795#endif /* CONFIG_IBSS_RSN */ 1796 1797 wpas_wps_notify_assoc(wpa_s, bssid); 1798} 1799 1800 1801static int disconnect_reason_recoverable(u16 reason_code) 1802{ 1803 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY || 1804 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA || 1805 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA; 1806} 1807 1808 1809static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s, 1810 u16 reason_code, 1811 int locally_generated) 1812{ 1813 const u8 *bssid; 1814 1815 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 1816 /* 1817 * At least Host AP driver and a Prism3 card seemed to be 1818 * generating streams of disconnected events when configuring 1819 * IBSS for WPA-None. Ignore them for now. 1820 */ 1821 return; 1822 } 1823 1824 bssid = wpa_s->bssid; 1825 if (is_zero_ether_addr(bssid)) 1826 bssid = wpa_s->pending_bssid; 1827 1828 if (!is_zero_ether_addr(bssid) || 1829 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 1830 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR 1831 " reason=%d%s", 1832 MAC2STR(bssid), reason_code, 1833 locally_generated ? " locally_generated=1" : ""); 1834 } 1835} 1836 1837 1838static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s, 1839 u16 reason_code, 1840 int locally_generated) 1841{ 1842 const u8 *bssid; 1843 int authenticating; 1844 u8 prev_pending_bssid[ETH_ALEN]; 1845 struct wpa_bss *fast_reconnect = NULL; 1846 struct wpa_ssid *fast_reconnect_ssid = NULL; 1847 struct wpa_ssid *last_ssid; 1848 1849 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING; 1850 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN); 1851 1852 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 1853 /* 1854 * At least Host AP driver and a Prism3 card seemed to be 1855 * generating streams of disconnected events when configuring 1856 * IBSS for WPA-None. Ignore them for now. 1857 */ 1858 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in " 1859 "IBSS/WPA-None mode"); 1860 return; 1861 } 1862 1863 if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE && 1864 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { 1865 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - " 1866 "pre-shared key may be incorrect"); 1867 wpas_auth_failed(wpa_s); 1868 } 1869 if (!wpa_s->auto_reconnect_disabled || 1870 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) { 1871 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to " 1872 "reconnect (wps=%d wpa_state=%d)", 1873 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS, 1874 wpa_s->wpa_state); 1875 if (wpa_s->wpa_state == WPA_COMPLETED && 1876 wpa_s->current_ssid && 1877 wpa_s->current_ssid->mode == WPAS_MODE_INFRA && 1878 !locally_generated && 1879 disconnect_reason_recoverable(reason_code)) { 1880 /* 1881 * It looks like the AP has dropped association with 1882 * us, but could allow us to get back in. Try to 1883 * reconnect to the same BSS without full scan to save 1884 * time for some common cases. 1885 */ 1886 fast_reconnect = wpa_s->current_bss; 1887 fast_reconnect_ssid = wpa_s->current_ssid; 1888 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) 1889#ifdef ANDROID 1890 wpa_supplicant_req_scan(wpa_s, 0, 500000); 1891#else 1892 wpa_supplicant_req_scan(wpa_s, 0, 100000); 1893#endif 1894 else 1895 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new " 1896 "immediate scan"); 1897 } else { 1898 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not " 1899 "try to re-connect"); 1900 wpa_s->reassociate = 0; 1901 wpa_s->disconnected = 1; 1902 wpa_supplicant_cancel_sched_scan(wpa_s); 1903 } 1904 bssid = wpa_s->bssid; 1905 if (is_zero_ether_addr(bssid)) 1906 bssid = wpa_s->pending_bssid; 1907 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 1908 wpas_connection_failed(wpa_s, bssid); 1909 wpa_sm_notify_disassoc(wpa_s->wpa); 1910 if (locally_generated) 1911 wpa_s->disconnect_reason = -reason_code; 1912 else 1913 wpa_s->disconnect_reason = reason_code; 1914 wpas_notify_disconnect_reason(wpa_s); 1915 if (wpa_supplicant_dynamic_keys(wpa_s)) { 1916 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys"); 1917 wpa_s->keys_cleared = 0; 1918 wpa_clear_keys(wpa_s, wpa_s->bssid); 1919 } 1920 last_ssid = wpa_s->current_ssid; 1921 wpa_supplicant_mark_disassoc(wpa_s); 1922 1923 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) { 1924 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); 1925 wpa_s->current_ssid = last_ssid; 1926 } 1927 1928 if (fast_reconnect) { 1929#ifndef CONFIG_NO_SCAN_PROCESSING 1930 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS"); 1931 if (wpa_supplicant_connect(wpa_s, fast_reconnect, 1932 fast_reconnect_ssid) < 0) { 1933 /* Recover through full scan */ 1934 wpa_supplicant_req_scan(wpa_s, 0, 100000); 1935 } 1936#endif /* CONFIG_NO_SCAN_PROCESSING */ 1937 } 1938} 1939 1940 1941#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 1942void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx) 1943{ 1944 struct wpa_supplicant *wpa_s = eloop_ctx; 1945 1946 if (!wpa_s->pending_mic_error_report) 1947 return; 1948 1949 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report"); 1950 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise); 1951 wpa_s->pending_mic_error_report = 0; 1952} 1953#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 1954 1955 1956static void 1957wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s, 1958 union wpa_event_data *data) 1959{ 1960 int pairwise; 1961 struct os_time t; 1962 1963 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); 1964 pairwise = (data && data->michael_mic_failure.unicast); 1965 os_get_time(&t); 1966 if ((wpa_s->last_michael_mic_error && 1967 t.sec - wpa_s->last_michael_mic_error <= 60) || 1968 wpa_s->pending_mic_error_report) { 1969 if (wpa_s->pending_mic_error_report) { 1970 /* 1971 * Send the pending MIC error report immediately since 1972 * we are going to start countermeasures and AP better 1973 * do the same. 1974 */ 1975 wpa_sm_key_request(wpa_s->wpa, 1, 1976 wpa_s->pending_mic_error_pairwise); 1977 } 1978 1979 /* Send the new MIC error report immediately since we are going 1980 * to start countermeasures and AP better do the same. 1981 */ 1982 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 1983 1984 /* initialize countermeasures */ 1985 wpa_s->countermeasures = 1; 1986 1987 wpa_blacklist_add(wpa_s, wpa_s->bssid); 1988 1989 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started"); 1990 1991 /* 1992 * Need to wait for completion of request frame. We do not get 1993 * any callback for the message completion, so just wait a 1994 * short while and hope for the best. */ 1995 os_sleep(0, 10000); 1996 1997 wpa_drv_set_countermeasures(wpa_s, 1); 1998 wpa_supplicant_deauthenticate(wpa_s, 1999 WLAN_REASON_MICHAEL_MIC_FAILURE); 2000 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, 2001 wpa_s, NULL); 2002 eloop_register_timeout(60, 0, 2003 wpa_supplicant_stop_countermeasures, 2004 wpa_s, NULL); 2005 /* TODO: mark the AP rejected for 60 second. STA is 2006 * allowed to associate with another AP.. */ 2007 } else { 2008#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2009 if (wpa_s->mic_errors_seen) { 2010 /* 2011 * Reduce the effectiveness of Michael MIC error 2012 * reports as a means for attacking against TKIP if 2013 * more than one MIC failure is noticed with the same 2014 * PTK. We delay the transmission of the reports by a 2015 * random time between 0 and 60 seconds in order to 2016 * force the attacker wait 60 seconds before getting 2017 * the information on whether a frame resulted in a MIC 2018 * failure. 2019 */ 2020 u8 rval[4]; 2021 int sec; 2022 2023 if (os_get_random(rval, sizeof(rval)) < 0) 2024 sec = os_random() % 60; 2025 else 2026 sec = WPA_GET_BE32(rval) % 60; 2027 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error " 2028 "report %d seconds", sec); 2029 wpa_s->pending_mic_error_report = 1; 2030 wpa_s->pending_mic_error_pairwise = pairwise; 2031 eloop_cancel_timeout( 2032 wpa_supplicant_delayed_mic_error_report, 2033 wpa_s, NULL); 2034 eloop_register_timeout( 2035 sec, os_random() % 1000000, 2036 wpa_supplicant_delayed_mic_error_report, 2037 wpa_s, NULL); 2038 } else { 2039 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2040 } 2041#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2042 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2043#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2044 } 2045 wpa_s->last_michael_mic_error = t.sec; 2046 wpa_s->mic_errors_seen++; 2047} 2048 2049 2050#ifdef CONFIG_TERMINATE_ONLASTIF 2051static int any_interfaces(struct wpa_supplicant *head) 2052{ 2053 struct wpa_supplicant *wpa_s; 2054 2055 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) 2056 if (!wpa_s->interface_removed) 2057 return 1; 2058 return 0; 2059} 2060#endif /* CONFIG_TERMINATE_ONLASTIF */ 2061 2062 2063static void 2064wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, 2065 union wpa_event_data *data) 2066{ 2067 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) 2068 return; 2069 2070 switch (data->interface_status.ievent) { 2071 case EVENT_INTERFACE_ADDED: 2072 if (!wpa_s->interface_removed) 2073 break; 2074 wpa_s->interface_removed = 0; 2075 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); 2076 if (wpa_supplicant_driver_init(wpa_s) < 0) { 2077 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " 2078 "driver after interface was added"); 2079 } 2080 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 2081 break; 2082 case EVENT_INTERFACE_REMOVED: 2083 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed"); 2084 wpa_s->interface_removed = 1; 2085 wpa_supplicant_mark_disassoc(wpa_s); 2086 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2087 l2_packet_deinit(wpa_s->l2); 2088 wpa_s->l2 = NULL; 2089#ifdef CONFIG_IBSS_RSN 2090 ibss_rsn_deinit(wpa_s->ibss_rsn); 2091 wpa_s->ibss_rsn = NULL; 2092#endif /* CONFIG_IBSS_RSN */ 2093#ifdef CONFIG_TERMINATE_ONLASTIF 2094 /* check if last interface */ 2095 if (!any_interfaces(wpa_s->global->ifaces)) 2096 eloop_terminate(); 2097#endif /* CONFIG_TERMINATE_ONLASTIF */ 2098 break; 2099 } 2100} 2101 2102 2103#ifdef CONFIG_PEERKEY 2104static void 2105wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s, 2106 union wpa_event_data *data) 2107{ 2108 if (data == NULL) 2109 return; 2110 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer); 2111} 2112#endif /* CONFIG_PEERKEY */ 2113 2114 2115#ifdef CONFIG_TDLS 2116static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s, 2117 union wpa_event_data *data) 2118{ 2119 if (data == NULL) 2120 return; 2121 switch (data->tdls.oper) { 2122 case TDLS_REQUEST_SETUP: 2123 wpa_tdls_start(wpa_s->wpa, data->tdls.peer); 2124 break; 2125 case TDLS_REQUEST_TEARDOWN: 2126 wpa_tdls_send_teardown(wpa_s->wpa, data->tdls.peer, 2127 data->tdls.reason_code); 2128 break; 2129 } 2130} 2131#endif /* CONFIG_TDLS */ 2132 2133 2134#ifdef CONFIG_IEEE80211V 2135static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s, 2136 union wpa_event_data *data) 2137{ 2138 if (data == NULL) 2139 return; 2140 switch (data->wnm.oper) { 2141 case WNM_OPER_SLEEP: 2142 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request " 2143 "(action=%d, intval=%d)", 2144 data->wnm.sleep_action, data->wnm.sleep_intval); 2145 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action, 2146 data->wnm.sleep_intval); 2147 break; 2148 } 2149} 2150#endif /* CONFIG_IEEE80211V */ 2151 2152 2153#ifdef CONFIG_IEEE80211R 2154static void 2155wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s, 2156 union wpa_event_data *data) 2157{ 2158 if (data == NULL) 2159 return; 2160 2161 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies, 2162 data->ft_ies.ies_len, 2163 data->ft_ies.ft_action, 2164 data->ft_ies.target_ap, 2165 data->ft_ies.ric_ies, 2166 data->ft_ies.ric_ies_len) < 0) { 2167 /* TODO: prevent MLME/driver from trying to associate? */ 2168 } 2169} 2170#endif /* CONFIG_IEEE80211R */ 2171 2172 2173#ifdef CONFIG_IBSS_RSN 2174static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s, 2175 union wpa_event_data *data) 2176{ 2177 struct wpa_ssid *ssid; 2178 if (wpa_s->wpa_state < WPA_ASSOCIATED) 2179 return; 2180 if (data == NULL) 2181 return; 2182 ssid = wpa_s->current_ssid; 2183 if (ssid == NULL) 2184 return; 2185 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 2186 return; 2187 2188 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer); 2189} 2190#endif /* CONFIG_IBSS_RSN */ 2191 2192 2193#ifdef CONFIG_IEEE80211R 2194static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, 2195 size_t len) 2196{ 2197 const u8 *sta_addr, *target_ap_addr; 2198 u16 status; 2199 2200 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); 2201 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) 2202 return; /* only SME case supported for now */ 2203 if (len < 1 + 2 * ETH_ALEN + 2) 2204 return; 2205 if (data[0] != 2) 2206 return; /* Only FT Action Response is supported for now */ 2207 sta_addr = data + 1; 2208 target_ap_addr = data + 1 + ETH_ALEN; 2209 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); 2210 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " 2211 MACSTR " TargetAP " MACSTR " status %u", 2212 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); 2213 2214 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { 2215 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR 2216 " in FT Action Response", MAC2STR(sta_addr)); 2217 return; 2218 } 2219 2220 if (status) { 2221 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " 2222 "failure (status code %d)", status); 2223 /* TODO: report error to FT code(?) */ 2224 return; 2225 } 2226 2227 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, 2228 len - (1 + 2 * ETH_ALEN + 2), 1, 2229 target_ap_addr, NULL, 0) < 0) 2230 return; 2231 2232#ifdef CONFIG_SME 2233 { 2234 struct wpa_bss *bss; 2235 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); 2236 if (bss) 2237 wpa_s->sme.freq = bss->freq; 2238 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; 2239 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, 2240 WLAN_AUTH_FT); 2241 } 2242#endif /* CONFIG_SME */ 2243} 2244#endif /* CONFIG_IEEE80211R */ 2245 2246 2247static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, 2248 struct unprot_deauth *e) 2249{ 2250#ifdef CONFIG_IEEE80211W 2251 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " 2252 "dropped: " MACSTR " -> " MACSTR 2253 " (reason code %u)", 2254 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2255 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2256#endif /* CONFIG_IEEE80211W */ 2257} 2258 2259 2260static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, 2261 struct unprot_disassoc *e) 2262{ 2263#ifdef CONFIG_IEEE80211W 2264 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " 2265 "dropped: " MACSTR " -> " MACSTR 2266 " (reason code %u)", 2267 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2268 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2269#endif /* CONFIG_IEEE80211W */ 2270} 2271 2272 2273static void wnm_action_rx(struct wpa_supplicant *wpa_s, struct rx_action *rx) 2274{ 2275 u8 action, mode; 2276 const u8 *pos, *end; 2277 2278 if (rx->data == NULL || rx->len == 0) 2279 return; 2280 2281 pos = rx->data; 2282 end = pos + rx->len; 2283 action = *pos++; 2284 2285 wpa_printf(MSG_DEBUG, "WNM: RX action %u from " MACSTR, 2286 action, MAC2STR(rx->sa)); 2287 switch (action) { 2288 case WNM_BSS_TRANS_MGMT_REQ: 2289 if (pos + 5 > end) 2290 break; 2291 wpa_printf(MSG_DEBUG, "WNM: BSS Transition Management " 2292 "Request: dialog_token=%u request_mode=0x%x " 2293 "disassoc_timer=%u validity_interval=%u", 2294 pos[0], pos[1], WPA_GET_LE16(pos + 2), pos[4]); 2295 mode = pos[1]; 2296 pos += 5; 2297 if (mode & 0x08) 2298 pos += 12; /* BSS Termination Duration */ 2299 if (mode & 0x10) { 2300 char url[256]; 2301 if (pos + 1 > end || pos + 1 + pos[0] > end) { 2302 wpa_printf(MSG_DEBUG, "WNM: Invalid BSS " 2303 "Transition Management Request " 2304 "(URL)"); 2305 break; 2306 } 2307 os_memcpy(url, pos + 1, pos[0]); 2308 url[pos[0]] = '\0'; 2309 wpa_msg(wpa_s, MSG_INFO, "WNM: ESS Disassociation " 2310 "Imminent - session_info_url=%s", url); 2311 } 2312 break; 2313 } 2314} 2315 2316 2317void wpa_supplicant_event(void *ctx, enum wpa_event_type event, 2318 union wpa_event_data *data) 2319{ 2320 struct wpa_supplicant *wpa_s = ctx; 2321 u16 reason_code = 0; 2322 int locally_generated = 0; 2323 2324 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && 2325 event != EVENT_INTERFACE_ENABLED && 2326 event != EVENT_INTERFACE_STATUS && 2327 event != EVENT_SCHED_SCAN_STOPPED) { 2328 wpa_dbg(wpa_s, MSG_DEBUG, 2329 "Ignore event %s (%d) while interface is disabled", 2330 event_to_string(event), event); 2331 return; 2332 } 2333 2334#ifndef CONFIG_NO_STDOUT_DEBUG 2335{ 2336 int level = MSG_DEBUG; 2337 2338 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) { 2339 const struct ieee80211_hdr *hdr; 2340 u16 fc; 2341 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame; 2342 fc = le_to_host16(hdr->frame_control); 2343 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 2344 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) 2345 level = MSG_EXCESSIVE; 2346 } 2347 2348 wpa_dbg(wpa_s, level, "Event %s (%d) received", 2349 event_to_string(event), event); 2350} 2351#endif /* CONFIG_NO_STDOUT_DEBUG */ 2352 2353 switch (event) { 2354 case EVENT_AUTH: 2355 sme_event_auth(wpa_s, data); 2356 break; 2357 case EVENT_ASSOC: 2358 wpa_supplicant_event_assoc(wpa_s, data); 2359 break; 2360 case EVENT_DISASSOC: 2361 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); 2362 if (data) { 2363 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 2364 data->disassoc_info.reason_code, 2365 data->disassoc_info.locally_generated ? 2366 " (locally generated)" : ""); 2367 if (data->disassoc_info.addr) 2368 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 2369 MAC2STR(data->disassoc_info.addr)); 2370 } 2371#ifdef CONFIG_AP 2372 if (wpa_s->ap_iface && data && data->disassoc_info.addr) { 2373 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], 2374 data->disassoc_info.addr); 2375 break; 2376 } 2377 if (wpa_s->ap_iface) { 2378 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in " 2379 "AP mode"); 2380 break; 2381 } 2382#endif /* CONFIG_AP */ 2383 if (data) { 2384 reason_code = data->disassoc_info.reason_code; 2385 locally_generated = 2386 data->disassoc_info.locally_generated; 2387 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", 2388 data->disassoc_info.ie, 2389 data->disassoc_info.ie_len); 2390#ifdef CONFIG_P2P 2391 wpas_p2p_disassoc_notif( 2392 wpa_s, data->disassoc_info.addr, reason_code, 2393 data->disassoc_info.ie, 2394 data->disassoc_info.ie_len, 2395 locally_generated); 2396#endif /* CONFIG_P2P */ 2397 } 2398 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2399 sme_event_disassoc(wpa_s, data); 2400 /* fall through */ 2401 case EVENT_DEAUTH: 2402 if (event == EVENT_DEAUTH) { 2403 wpa_dbg(wpa_s, MSG_DEBUG, 2404 "Deauthentication notification"); 2405 if (data) { 2406 reason_code = data->deauth_info.reason_code; 2407 locally_generated = 2408 data->deauth_info.locally_generated; 2409 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 2410 data->deauth_info.reason_code, 2411 data->deauth_info.locally_generated ? 2412 " (locally generated)" : ""); 2413 if (data->deauth_info.addr) { 2414 wpa_dbg(wpa_s, MSG_DEBUG, " * address " 2415 MACSTR, 2416 MAC2STR(data->deauth_info. 2417 addr)); 2418 } 2419 wpa_hexdump(MSG_DEBUG, 2420 "Deauthentication frame IE(s)", 2421 data->deauth_info.ie, 2422 data->deauth_info.ie_len); 2423 } 2424 } 2425#ifdef CONFIG_AP 2426 if (wpa_s->ap_iface && data && data->deauth_info.addr) { 2427 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], 2428 data->deauth_info.addr); 2429 break; 2430 } 2431 if (wpa_s->ap_iface) { 2432 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in " 2433 "AP mode"); 2434 break; 2435 } 2436#endif /* CONFIG_AP */ 2437 wpa_supplicant_event_disassoc(wpa_s, reason_code, 2438 locally_generated); 2439 if (reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED || 2440 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || 2441 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) && 2442 eapol_sm_failed(wpa_s->eapol))) 2443 wpas_auth_failed(wpa_s); 2444#ifdef CONFIG_P2P 2445 if (event == EVENT_DEAUTH && data) { 2446 if (wpas_p2p_deauth_notif(wpa_s, 2447 data->deauth_info.addr, 2448 reason_code, 2449 data->deauth_info.ie, 2450 data->deauth_info.ie_len, 2451 locally_generated) > 0) { 2452 /* 2453 * The interface was removed, so cannot 2454 * continue processing any additional 2455 * operations after this. 2456 */ 2457 break; 2458 } 2459 } 2460#endif /* CONFIG_P2P */ 2461 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code, 2462 locally_generated); 2463 break; 2464 case EVENT_MICHAEL_MIC_FAILURE: 2465 wpa_supplicant_event_michael_mic_failure(wpa_s, data); 2466 break; 2467#ifndef CONFIG_NO_SCAN_PROCESSING 2468 case EVENT_SCAN_RESULTS: 2469 wpa_supplicant_event_scan_results(wpa_s, data); 2470#ifdef CONFIG_P2P 2471 if (wpa_s->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled && 2472 wpa_s->global->p2p != NULL && 2473 wpa_s->wpa_state != WPA_AUTHENTICATING && 2474 wpa_s->wpa_state != WPA_ASSOCIATING) { 2475 wpa_s->p2p_cb_on_scan_complete = 0; 2476 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) { 2477 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation " 2478 "continued after scan result processing"); 2479 } 2480 } 2481#endif /* CONFIG_P2P */ 2482 break; 2483#endif /* CONFIG_NO_SCAN_PROCESSING */ 2484 case EVENT_ASSOCINFO: 2485 wpa_supplicant_event_associnfo(wpa_s, data); 2486 break; 2487 case EVENT_INTERFACE_STATUS: 2488 wpa_supplicant_event_interface_status(wpa_s, data); 2489 break; 2490 case EVENT_PMKID_CANDIDATE: 2491 wpa_supplicant_event_pmkid_candidate(wpa_s, data); 2492 break; 2493#ifdef CONFIG_PEERKEY 2494 case EVENT_STKSTART: 2495 wpa_supplicant_event_stkstart(wpa_s, data); 2496 break; 2497#endif /* CONFIG_PEERKEY */ 2498#ifdef CONFIG_TDLS 2499 case EVENT_TDLS: 2500 wpa_supplicant_event_tdls(wpa_s, data); 2501 break; 2502#endif /* CONFIG_TDLS */ 2503#ifdef CONFIG_IEEE80211V 2504 case EVENT_WNM: 2505 wpa_supplicant_event_wnm(wpa_s, data); 2506 break; 2507#endif /* CONFIG_IEEE80211V */ 2508#ifdef CONFIG_IEEE80211R 2509 case EVENT_FT_RESPONSE: 2510 wpa_supplicant_event_ft_response(wpa_s, data); 2511 break; 2512#endif /* CONFIG_IEEE80211R */ 2513#ifdef CONFIG_IBSS_RSN 2514 case EVENT_IBSS_RSN_START: 2515 wpa_supplicant_event_ibss_rsn_start(wpa_s, data); 2516 break; 2517#endif /* CONFIG_IBSS_RSN */ 2518 case EVENT_ASSOC_REJECT: 2519 if (data->assoc_reject.bssid) 2520 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 2521 "bssid=" MACSTR " status_code=%u", 2522 MAC2STR(data->assoc_reject.bssid), 2523 data->assoc_reject.status_code); 2524 else 2525 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 2526 "status_code=%u", 2527 data->assoc_reject.status_code); 2528 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2529 sme_event_assoc_reject(wpa_s, data); 2530#ifdef ANDROID_P2P 2531#ifdef CONFIG_P2P 2532 else if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) { 2533 if(!wpa_s->current_ssid) { 2534 wpa_printf(MSG_ERROR, "current_ssid == NULL"); 2535 break; 2536 } 2537 /* If assoc reject is reported by the driver, then avoid 2538 * waiting for the authentication timeout. Cancel the 2539 * authentication timeout and retry the assoc. 2540 */ 2541 if(wpa_s->current_ssid->assoc_retry++ < 5) { 2542 wpa_printf(MSG_ERROR, "Retrying assoc: %d ", 2543 wpa_s->current_ssid->assoc_retry); 2544 wpa_supplicant_cancel_auth_timeout(wpa_s); 2545 2546 /* Clear the states */ 2547 wpa_sm_notify_disassoc(wpa_s->wpa); 2548 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2549 2550 wpa_s->reassociate = 1; 2551 wpa_supplicant_req_scan(wpa_s, 1, 0); 2552 } else { 2553 /* If we ASSOC_REJECT's hits threshold, disable the 2554 * network 2555 */ 2556 wpa_printf(MSG_ERROR, "Assoc retry threshold reached. " 2557 "Disabling the network"); 2558 wpa_s->current_ssid->assoc_retry = 0; 2559 wpa_supplicant_disable_network(wpa_s, wpa_s->current_ssid); 2560 wpas_p2p_group_remove(wpa_s, wpa_s->ifname); 2561 } 2562 } 2563#endif 2564#endif /* ANDROID_P2P */ 2565 break; 2566 case EVENT_AUTH_TIMED_OUT: 2567 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2568 sme_event_auth_timed_out(wpa_s, data); 2569 break; 2570 case EVENT_ASSOC_TIMED_OUT: 2571 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2572 sme_event_assoc_timed_out(wpa_s, data); 2573 break; 2574 case EVENT_TX_STATUS: 2575 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR 2576 " type=%d stype=%d", 2577 MAC2STR(data->tx_status.dst), 2578 data->tx_status.type, data->tx_status.stype); 2579#ifdef CONFIG_AP 2580 if (wpa_s->ap_iface == NULL) { 2581#ifdef CONFIG_OFFCHANNEL 2582 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 2583 data->tx_status.stype == WLAN_FC_STYPE_ACTION) 2584 offchannel_send_action_tx_status( 2585 wpa_s, data->tx_status.dst, 2586 data->tx_status.data, 2587 data->tx_status.data_len, 2588 data->tx_status.ack ? 2589 OFFCHANNEL_SEND_ACTION_SUCCESS : 2590 OFFCHANNEL_SEND_ACTION_NO_ACK); 2591#endif /* CONFIG_OFFCHANNEL */ 2592 break; 2593 } 2594#endif /* CONFIG_AP */ 2595#ifdef CONFIG_OFFCHANNEL 2596 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" 2597 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst)); 2598 /* 2599 * Catch TX status events for Action frames we sent via group 2600 * interface in GO mode. 2601 */ 2602 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 2603 data->tx_status.stype == WLAN_FC_STYPE_ACTION && 2604 os_memcmp(wpa_s->parent->pending_action_dst, 2605 data->tx_status.dst, ETH_ALEN) == 0) { 2606 offchannel_send_action_tx_status( 2607 wpa_s->parent, data->tx_status.dst, 2608 data->tx_status.data, 2609 data->tx_status.data_len, 2610 data->tx_status.ack ? 2611 OFFCHANNEL_SEND_ACTION_SUCCESS : 2612 OFFCHANNEL_SEND_ACTION_NO_ACK); 2613 break; 2614 } 2615#endif /* CONFIG_OFFCHANNEL */ 2616#ifdef CONFIG_AP 2617 switch (data->tx_status.type) { 2618 case WLAN_FC_TYPE_MGMT: 2619 ap_mgmt_tx_cb(wpa_s, data->tx_status.data, 2620 data->tx_status.data_len, 2621 data->tx_status.stype, 2622 data->tx_status.ack); 2623 break; 2624 case WLAN_FC_TYPE_DATA: 2625 ap_tx_status(wpa_s, data->tx_status.dst, 2626 data->tx_status.data, 2627 data->tx_status.data_len, 2628 data->tx_status.ack); 2629 break; 2630 } 2631#endif /* CONFIG_AP */ 2632 break; 2633#ifdef CONFIG_AP 2634 case EVENT_EAPOL_TX_STATUS: 2635 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst, 2636 data->eapol_tx_status.data, 2637 data->eapol_tx_status.data_len, 2638 data->eapol_tx_status.ack); 2639 break; 2640 case EVENT_DRIVER_CLIENT_POLL_OK: 2641 ap_client_poll_ok(wpa_s, data->client_poll.addr); 2642 break; 2643 case EVENT_RX_FROM_UNKNOWN: 2644 if (wpa_s->ap_iface == NULL) 2645 break; 2646 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr, 2647 data->rx_from_unknown.wds); 2648 break; 2649 case EVENT_CH_SWITCH: 2650 if (!data) 2651 break; 2652 if (!wpa_s->ap_iface) { 2653 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch " 2654 "event in non-AP mode"); 2655 break; 2656 } 2657 2658#ifdef CONFIG_AP 2659 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq, 2660 data->ch_switch.ht_enabled, 2661 data->ch_switch.ch_offset); 2662#endif /* CONFIG_AP */ 2663 break; 2664 case EVENT_RX_MGMT: { 2665 u16 fc, stype; 2666 const struct ieee80211_mgmt *mgmt; 2667 2668 mgmt = (const struct ieee80211_mgmt *) 2669 data->rx_mgmt.frame; 2670 fc = le_to_host16(mgmt->frame_control); 2671 stype = WLAN_FC_GET_STYPE(fc); 2672 2673 if (wpa_s->ap_iface == NULL) { 2674#ifdef CONFIG_P2P 2675 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2676 data->rx_mgmt.frame_len > 24) { 2677 const u8 *src = mgmt->sa; 2678 const u8 *ie = mgmt->u.probe_req.variable; 2679 size_t ie_len = data->rx_mgmt.frame_len - 2680 (mgmt->u.probe_req.variable - 2681 data->rx_mgmt.frame); 2682 wpas_p2p_probe_req_rx( 2683 wpa_s, src, mgmt->da, 2684 mgmt->bssid, ie, ie_len, 2685 data->rx_mgmt.ssi_signal); 2686 break; 2687 } 2688#endif /* CONFIG_P2P */ 2689 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " 2690 "management frame in non-AP mode"); 2691 break; 2692 } 2693 2694 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2695 data->rx_mgmt.frame_len > 24) { 2696 const u8 *ie = mgmt->u.probe_req.variable; 2697 size_t ie_len = data->rx_mgmt.frame_len - 2698 (mgmt->u.probe_req.variable - 2699 data->rx_mgmt.frame); 2700 2701 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da, 2702 mgmt->bssid, ie, ie_len, 2703 data->rx_mgmt.ssi_signal); 2704 } 2705 2706 ap_mgmt_rx(wpa_s, &data->rx_mgmt); 2707 break; 2708 } 2709#endif /* CONFIG_AP */ 2710 case EVENT_RX_ACTION: 2711 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR 2712 " Category=%u DataLen=%d freq=%d MHz", 2713 MAC2STR(data->rx_action.sa), 2714 data->rx_action.category, (int) data->rx_action.len, 2715 data->rx_action.freq); 2716#ifdef CONFIG_IEEE80211R 2717 if (data->rx_action.category == WLAN_ACTION_FT) { 2718 ft_rx_action(wpa_s, data->rx_action.data, 2719 data->rx_action.len); 2720 break; 2721 } 2722#endif /* CONFIG_IEEE80211R */ 2723#ifdef CONFIG_IEEE80211W 2724#ifdef CONFIG_SME 2725 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) { 2726 sme_sa_query_rx(wpa_s, data->rx_action.sa, 2727 data->rx_action.data, 2728 data->rx_action.len); 2729 break; 2730 } 2731#endif /* CONFIG_SME */ 2732#endif /* CONFIG_IEEE80211W */ 2733#ifdef CONFIG_IEEE80211V 2734 if (data->rx_action.category == WLAN_ACTION_WNM) { 2735 ieee802_11_rx_wnm_action(wpa_s, &data->rx_action); 2736 break; 2737 } 2738#endif /* CONFIG_IEEE80211V */ 2739#ifdef CONFIG_GAS 2740 if (data->rx_action.category == WLAN_ACTION_PUBLIC && 2741 gas_query_rx(wpa_s->gas, data->rx_action.da, 2742 data->rx_action.sa, data->rx_action.bssid, 2743 data->rx_action.data, data->rx_action.len, 2744 data->rx_action.freq) == 0) 2745 break; 2746#endif /* CONFIG_GAS */ 2747 if (data->rx_action.category == WLAN_ACTION_WNM) { 2748 wnm_action_rx(wpa_s, &data->rx_action); 2749 break; 2750 } 2751#ifdef CONFIG_TDLS 2752 if (data->rx_action.category == WLAN_ACTION_PUBLIC && 2753 data->rx_action.len >= 4 && 2754 data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) { 2755 wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery " 2756 "Response from " MACSTR, 2757 MAC2STR(data->rx_action.sa)); 2758 break; 2759 } 2760#endif /* CONFIG_TDLS */ 2761#ifdef CONFIG_P2P 2762 wpas_p2p_rx_action(wpa_s, data->rx_action.da, 2763 data->rx_action.sa, 2764 data->rx_action.bssid, 2765 data->rx_action.category, 2766 data->rx_action.data, 2767 data->rx_action.len, data->rx_action.freq); 2768#endif /* CONFIG_P2P */ 2769 break; 2770 case EVENT_RX_PROBE_REQ: 2771 if (data->rx_probe_req.sa == NULL || 2772 data->rx_probe_req.ie == NULL) 2773 break; 2774#ifdef CONFIG_AP 2775 if (wpa_s->ap_iface) { 2776 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], 2777 data->rx_probe_req.sa, 2778 data->rx_probe_req.da, 2779 data->rx_probe_req.bssid, 2780 data->rx_probe_req.ie, 2781 data->rx_probe_req.ie_len, 2782 data->rx_probe_req.ssi_signal); 2783 break; 2784 } 2785#endif /* CONFIG_AP */ 2786#ifdef CONFIG_P2P 2787 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa, 2788 data->rx_probe_req.da, 2789 data->rx_probe_req.bssid, 2790 data->rx_probe_req.ie, 2791 data->rx_probe_req.ie_len, 2792 data->rx_probe_req.ssi_signal); 2793#endif /* CONFIG_P2P */ 2794 break; 2795 case EVENT_REMAIN_ON_CHANNEL: 2796#ifdef CONFIG_OFFCHANNEL 2797 offchannel_remain_on_channel_cb( 2798 wpa_s, data->remain_on_channel.freq, 2799 data->remain_on_channel.duration); 2800#endif /* CONFIG_OFFCHANNEL */ 2801#ifdef CONFIG_P2P 2802 wpas_p2p_remain_on_channel_cb( 2803 wpa_s, data->remain_on_channel.freq, 2804 data->remain_on_channel.duration); 2805#endif /* CONFIG_P2P */ 2806 break; 2807 case EVENT_CANCEL_REMAIN_ON_CHANNEL: 2808#ifdef CONFIG_OFFCHANNEL 2809 offchannel_cancel_remain_on_channel_cb( 2810 wpa_s, data->remain_on_channel.freq); 2811#endif /* CONFIG_OFFCHANNEL */ 2812#ifdef CONFIG_P2P 2813 wpas_p2p_cancel_remain_on_channel_cb( 2814 wpa_s, data->remain_on_channel.freq); 2815#endif /* CONFIG_P2P */ 2816 break; 2817#ifdef CONFIG_P2P 2818 case EVENT_P2P_DEV_FOUND: { 2819 struct p2p_peer_info peer_info; 2820 2821 os_memset(&peer_info, 0, sizeof(peer_info)); 2822 if (data->p2p_dev_found.dev_addr) 2823 os_memcpy(peer_info.p2p_device_addr, 2824 data->p2p_dev_found.dev_addr, ETH_ALEN); 2825 if (data->p2p_dev_found.pri_dev_type) 2826 os_memcpy(peer_info.pri_dev_type, 2827 data->p2p_dev_found.pri_dev_type, 2828 sizeof(peer_info.pri_dev_type)); 2829 if (data->p2p_dev_found.dev_name) 2830 os_strlcpy(peer_info.device_name, 2831 data->p2p_dev_found.dev_name, 2832 sizeof(peer_info.device_name)); 2833 peer_info.config_methods = data->p2p_dev_found.config_methods; 2834 peer_info.dev_capab = data->p2p_dev_found.dev_capab; 2835 peer_info.group_capab = data->p2p_dev_found.group_capab; 2836 2837 /* 2838 * FIX: new_device=1 is not necessarily correct. We should 2839 * maintain a P2P peer database in wpa_supplicant and update 2840 * this information based on whether the peer is truly new. 2841 */ 2842 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1); 2843 break; 2844 } 2845 case EVENT_P2P_GO_NEG_REQ_RX: 2846 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src, 2847 data->p2p_go_neg_req_rx.dev_passwd_id); 2848 break; 2849 case EVENT_P2P_GO_NEG_COMPLETED: 2850 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res); 2851 break; 2852 case EVENT_P2P_PROV_DISC_REQUEST: 2853 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer, 2854 data->p2p_prov_disc_req.config_methods, 2855 data->p2p_prov_disc_req.dev_addr, 2856 data->p2p_prov_disc_req.pri_dev_type, 2857 data->p2p_prov_disc_req.dev_name, 2858 data->p2p_prov_disc_req.supp_config_methods, 2859 data->p2p_prov_disc_req.dev_capab, 2860 data->p2p_prov_disc_req.group_capab, 2861 NULL, 0); 2862 break; 2863 case EVENT_P2P_PROV_DISC_RESPONSE: 2864 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer, 2865 data->p2p_prov_disc_resp.config_methods); 2866 break; 2867 case EVENT_P2P_SD_REQUEST: 2868 wpas_sd_request(wpa_s, data->p2p_sd_req.freq, 2869 data->p2p_sd_req.sa, 2870 data->p2p_sd_req.dialog_token, 2871 data->p2p_sd_req.update_indic, 2872 data->p2p_sd_req.tlvs, 2873 data->p2p_sd_req.tlvs_len); 2874 break; 2875 case EVENT_P2P_SD_RESPONSE: 2876 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa, 2877 data->p2p_sd_resp.update_indic, 2878 data->p2p_sd_resp.tlvs, 2879 data->p2p_sd_resp.tlvs_len); 2880 break; 2881#endif /* CONFIG_P2P */ 2882 case EVENT_EAPOL_RX: 2883 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, 2884 data->eapol_rx.data, 2885 data->eapol_rx.data_len); 2886 break; 2887 case EVENT_SIGNAL_CHANGE: 2888 bgscan_notify_signal_change( 2889 wpa_s, data->signal_change.above_threshold, 2890 data->signal_change.current_signal, 2891 data->signal_change.current_noise, 2892 data->signal_change.current_txrate); 2893 break; 2894 case EVENT_INTERFACE_ENABLED: 2895 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); 2896 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 2897 wpa_supplicant_update_mac_addr(wpa_s); 2898#ifdef CONFIG_AP 2899 if (!wpa_s->ap_iface) { 2900 wpa_supplicant_set_state(wpa_s, 2901 WPA_DISCONNECTED); 2902 wpa_supplicant_req_scan(wpa_s, 0, 0); 2903 } else 2904 wpa_supplicant_set_state(wpa_s, 2905 WPA_COMPLETED); 2906#else /* CONFIG_AP */ 2907 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 2908 wpa_supplicant_req_scan(wpa_s, 0, 0); 2909#endif /* CONFIG_AP */ 2910 } 2911 break; 2912 case EVENT_INTERFACE_DISABLED: 2913 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); 2914 wpa_supplicant_mark_disassoc(wpa_s); 2915 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2916 break; 2917 case EVENT_CHANNEL_LIST_CHANGED: 2918 if (wpa_s->drv_priv == NULL) 2919 break; /* Ignore event during drv initialization */ 2920 2921 free_hw_features(wpa_s); 2922 wpa_s->hw.modes = wpa_drv_get_hw_feature_data( 2923 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags); 2924 2925#ifdef CONFIG_P2P 2926 wpas_p2p_update_channel_list(wpa_s); 2927#endif /* CONFIG_P2P */ 2928 break; 2929 case EVENT_INTERFACE_UNAVAILABLE: 2930#ifdef CONFIG_P2P 2931 wpas_p2p_interface_unavailable(wpa_s); 2932#endif /* CONFIG_P2P */ 2933 break; 2934 case EVENT_BEST_CHANNEL: 2935 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " 2936 "(%d %d %d)", 2937 data->best_chan.freq_24, data->best_chan.freq_5, 2938 data->best_chan.freq_overall); 2939 wpa_s->best_24_freq = data->best_chan.freq_24; 2940 wpa_s->best_5_freq = data->best_chan.freq_5; 2941 wpa_s->best_overall_freq = data->best_chan.freq_overall; 2942#ifdef CONFIG_P2P 2943 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, 2944 data->best_chan.freq_5, 2945 data->best_chan.freq_overall); 2946#endif /* CONFIG_P2P */ 2947 break; 2948 case EVENT_UNPROT_DEAUTH: 2949 wpa_supplicant_event_unprot_deauth(wpa_s, 2950 &data->unprot_deauth); 2951 break; 2952 case EVENT_UNPROT_DISASSOC: 2953 wpa_supplicant_event_unprot_disassoc(wpa_s, 2954 &data->unprot_disassoc); 2955 break; 2956 case EVENT_STATION_LOW_ACK: 2957#ifdef CONFIG_AP 2958 if (wpa_s->ap_iface && data) 2959 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], 2960 data->low_ack.addr); 2961#endif /* CONFIG_AP */ 2962#ifdef CONFIG_TDLS 2963 if (data) 2964 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr); 2965#endif /* CONFIG_TDLS */ 2966 break; 2967 case EVENT_IBSS_PEER_LOST: 2968#ifdef CONFIG_IBSS_RSN 2969 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer); 2970#endif /* CONFIG_IBSS_RSN */ 2971 break; 2972 case EVENT_DRIVER_GTK_REKEY: 2973 if (os_memcmp(data->driver_gtk_rekey.bssid, 2974 wpa_s->bssid, ETH_ALEN)) 2975 break; 2976 if (!wpa_s->wpa) 2977 break; 2978 wpa_sm_update_replay_ctr(wpa_s->wpa, 2979 data->driver_gtk_rekey.replay_ctr); 2980 break; 2981 case EVENT_SCHED_SCAN_STOPPED: 2982 wpa_s->sched_scanning = 0; 2983 wpa_supplicant_notify_scanning(wpa_s, 0); 2984 2985 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 2986 break; 2987 2988 /* 2989 * If we timed out, start a new sched scan to continue 2990 * searching for more SSIDs. 2991 */ 2992 if (wpa_s->sched_scan_timed_out) 2993 wpa_supplicant_req_sched_scan(wpa_s); 2994 break; 2995 case EVENT_WPS_BUTTON_PUSHED: 2996#ifdef CONFIG_WPS 2997 wpas_wps_start_pbc(wpa_s, NULL, 0); 2998#endif /* CONFIG_WPS */ 2999 break; 3000 default: 3001 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); 3002 break; 3003 } 3004} 3005