events.c revision f86232838cf712377867cb42417c1613ab5dc425
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_select_network_from_last_scan(struct wpa_supplicant *wpa_s); 48 49 50static int wpas_temp_disabled(struct wpa_supplicant *wpa_s, 51 struct wpa_ssid *ssid) 52{ 53 struct os_time now; 54 55 if (ssid == NULL || ssid->disabled_until.sec == 0) 56 return 0; 57 58 os_get_time(&now); 59 if (ssid->disabled_until.sec > now.sec) 60 return ssid->disabled_until.sec - now.sec; 61 62 wpas_clear_temp_disabled(wpa_s, ssid, 0); 63 64 return 0; 65} 66 67 68static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s) 69{ 70 struct wpa_ssid *ssid, *old_ssid; 71 int res; 72 73 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) 74 return 0; 75 76 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association " 77 "information"); 78 ssid = wpa_supplicant_get_ssid(wpa_s); 79 if (ssid == NULL) { 80 wpa_msg(wpa_s, MSG_INFO, 81 "No network configuration found for the current AP"); 82 return -1; 83 } 84 85 if (wpas_network_disabled(wpa_s, ssid)) { 86 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled"); 87 return -1; 88 } 89 90 if (disallowed_bssid(wpa_s, wpa_s->bssid) || 91 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) { 92 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed"); 93 return -1; 94 } 95 96 res = wpas_temp_disabled(wpa_s, ssid); 97 if (res > 0) { 98 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily " 99 "disabled for %d second(s)", res); 100 return -1; 101 } 102 103 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the " 104 "current AP"); 105 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { 106 u8 wpa_ie[80]; 107 size_t wpa_ie_len = sizeof(wpa_ie); 108 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, 109 wpa_ie, &wpa_ie_len) < 0) 110 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites"); 111 } else { 112 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); 113 } 114 115 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) 116 eapol_sm_invalidate_cached_session(wpa_s->eapol); 117 old_ssid = wpa_s->current_ssid; 118 wpa_s->current_ssid = ssid; 119 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); 120 wpa_supplicant_initiate_eapol(wpa_s); 121 if (old_ssid != wpa_s->current_ssid) 122 wpas_notify_network_changed(wpa_s); 123 124 return 0; 125} 126 127 128void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx) 129{ 130 struct wpa_supplicant *wpa_s = eloop_ctx; 131 132 if (wpa_s->countermeasures) { 133 wpa_s->countermeasures = 0; 134 wpa_drv_set_countermeasures(wpa_s, 0); 135 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped"); 136 wpa_supplicant_req_scan(wpa_s, 0, 0); 137 } 138} 139 140 141void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s) 142{ 143 int bssid_changed; 144 145 wnm_bss_keep_alive_deinit(wpa_s); 146 147#ifdef CONFIG_IBSS_RSN 148 ibss_rsn_deinit(wpa_s->ibss_rsn); 149 wpa_s->ibss_rsn = NULL; 150#endif /* CONFIG_IBSS_RSN */ 151 152#ifdef CONFIG_AP 153 wpa_supplicant_ap_deinit(wpa_s); 154#endif /* CONFIG_AP */ 155 156 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 157 return; 158 159 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 160#ifdef ANDROID 161 wpa_s->conf->ap_scan = DEFAULT_AP_SCAN; 162#endif 163 bssid_changed = !is_zero_ether_addr(wpa_s->bssid); 164 os_memset(wpa_s->bssid, 0, ETH_ALEN); 165 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 166#ifdef CONFIG_SME 167 wpa_s->sme.prev_bssid_set = 0; 168#endif /* CONFIG_SME */ 169#ifdef CONFIG_P2P 170 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN); 171#endif /* CONFIG_P2P */ 172 wpa_s->current_bss = NULL; 173 wpa_s->assoc_freq = 0; 174#ifdef CONFIG_IEEE80211R 175#ifdef CONFIG_SME 176 if (wpa_s->sme.ft_ies) 177 sme_update_ft_ies(wpa_s, NULL, NULL, 0); 178#endif /* CONFIG_SME */ 179#endif /* CONFIG_IEEE80211R */ 180 181 if (bssid_changed) 182 wpas_notify_bssid_changed(wpa_s); 183 184 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 185 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 186 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 187 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 188 wpa_s->ap_ies_from_associnfo = 0; 189 wpa_s->current_ssid = NULL; 190 wpa_s->key_mgmt = 0; 191} 192 193 194static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s) 195{ 196 struct wpa_ie_data ie; 197 int pmksa_set = -1; 198 size_t i; 199 200 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 || 201 ie.pmkid == NULL) 202 return; 203 204 for (i = 0; i < ie.num_pmkid; i++) { 205 pmksa_set = pmksa_cache_set_current(wpa_s->wpa, 206 ie.pmkid + i * PMKID_LEN, 207 NULL, NULL, 0); 208 if (pmksa_set == 0) { 209 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); 210 break; 211 } 212 } 213 214 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from " 215 "PMKSA cache", pmksa_set == 0 ? "" : "not "); 216} 217 218 219static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s, 220 union wpa_event_data *data) 221{ 222 if (data == NULL) { 223 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate " 224 "event"); 225 return; 226 } 227 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR 228 " index=%d preauth=%d", 229 MAC2STR(data->pmkid_candidate.bssid), 230 data->pmkid_candidate.index, 231 data->pmkid_candidate.preauth); 232 233 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid, 234 data->pmkid_candidate.index, 235 data->pmkid_candidate.preauth); 236} 237 238 239static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s) 240{ 241 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 242 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) 243 return 0; 244 245#ifdef IEEE8021X_EAPOL 246 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA && 247 wpa_s->current_ssid && 248 !(wpa_s->current_ssid->eapol_flags & 249 (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 250 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) { 251 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either 252 * plaintext or static WEP keys). */ 253 return 0; 254 } 255#endif /* IEEE8021X_EAPOL */ 256 257 return 1; 258} 259 260 261/** 262 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC 263 * @wpa_s: pointer to wpa_supplicant data 264 * @ssid: Configuration data for the network 265 * Returns: 0 on success, -1 on failure 266 * 267 * This function is called when starting authentication with a network that is 268 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA). 269 */ 270int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s, 271 struct wpa_ssid *ssid) 272{ 273#ifdef IEEE8021X_EAPOL 274#ifdef PCSC_FUNCS 275 int aka = 0, sim = 0, type; 276 277 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL) 278 return 0; 279 280 if (ssid->eap.eap_methods == NULL) { 281 sim = 1; 282 aka = 1; 283 } else { 284 struct eap_method_type *eap = ssid->eap.eap_methods; 285 while (eap->vendor != EAP_VENDOR_IETF || 286 eap->method != EAP_TYPE_NONE) { 287 if (eap->vendor == EAP_VENDOR_IETF) { 288 if (eap->method == EAP_TYPE_SIM) 289 sim = 1; 290 else if (eap->method == EAP_TYPE_AKA || 291 eap->method == EAP_TYPE_AKA_PRIME) 292 aka = 1; 293 } 294 eap++; 295 } 296 } 297 298 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL) 299 sim = 0; 300 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL && 301 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) == 302 NULL) 303 aka = 0; 304 305 if (!sim && !aka) { 306 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to " 307 "use SIM, but neither EAP-SIM nor EAP-AKA are " 308 "enabled"); 309 return 0; 310 } 311 312 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM " 313 "(sim=%d aka=%d) - initialize PCSC", sim, aka); 314 if (sim && aka) 315 type = SCARD_TRY_BOTH; 316 else if (aka) 317 type = SCARD_USIM_ONLY; 318 else 319 type = SCARD_GSM_SIM_ONLY; 320 321 wpa_s->scard = scard_init(type, NULL); 322 if (wpa_s->scard == NULL) { 323 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM " 324 "(pcsc-lite)"); 325 return -1; 326 } 327 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); 328 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); 329#endif /* PCSC_FUNCS */ 330#endif /* IEEE8021X_EAPOL */ 331 332 return 0; 333} 334 335 336#ifndef CONFIG_NO_SCAN_PROCESSING 337static int wpa_supplicant_match_privacy(struct wpa_bss *bss, 338 struct wpa_ssid *ssid) 339{ 340 int i, privacy = 0; 341 342 if (ssid->mixed_cell) 343 return 1; 344 345#ifdef CONFIG_WPS 346 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) 347 return 1; 348#endif /* CONFIG_WPS */ 349 350 for (i = 0; i < NUM_WEP_KEYS; i++) { 351 if (ssid->wep_key_len[i]) { 352 privacy = 1; 353 break; 354 } 355 } 356#ifdef IEEE8021X_EAPOL 357 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 358 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 359 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) 360 privacy = 1; 361#endif /* IEEE8021X_EAPOL */ 362 363 if (wpa_key_mgmt_wpa(ssid->key_mgmt)) 364 privacy = 1; 365 366 if (bss->caps & IEEE80211_CAP_PRIVACY) 367 return privacy; 368 return !privacy; 369} 370 371 372static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s, 373 struct wpa_ssid *ssid, 374 struct wpa_bss *bss) 375{ 376 struct wpa_ie_data ie; 377 int proto_match = 0; 378 const u8 *rsn_ie, *wpa_ie; 379 int ret; 380 int wep_ok; 381 382 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss); 383 if (ret >= 0) 384 return ret; 385 386 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */ 387 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) && 388 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 389 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) || 390 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)); 391 392 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 393 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) { 394 proto_match++; 395 396 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) { 397 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse " 398 "failed"); 399 break; 400 } 401 402 if (wep_ok && 403 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 404 { 405 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 406 "in RSN IE"); 407 return 1; 408 } 409 410 if (!(ie.proto & ssid->proto)) { 411 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto " 412 "mismatch"); 413 break; 414 } 415 416 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 417 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK " 418 "cipher mismatch"); 419 break; 420 } 421 422 if (!(ie.group_cipher & ssid->group_cipher)) { 423 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK " 424 "cipher mismatch"); 425 break; 426 } 427 428 if (!(ie.key_mgmt & ssid->key_mgmt)) { 429 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt " 430 "mismatch"); 431 break; 432 } 433 434#ifdef CONFIG_IEEE80211W 435 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 436 (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? 437 wpa_s->conf->pmf : ssid->ieee80211w) == 438 MGMT_FRAME_PROTECTION_REQUIRED) { 439 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt " 440 "frame protection"); 441 break; 442 } 443#endif /* CONFIG_IEEE80211W */ 444 445 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE"); 446 return 1; 447 } 448 449 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 450 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) { 451 proto_match++; 452 453 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) { 454 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse " 455 "failed"); 456 break; 457 } 458 459 if (wep_ok && 460 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 461 { 462 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 463 "in WPA IE"); 464 return 1; 465 } 466 467 if (!(ie.proto & ssid->proto)) { 468 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto " 469 "mismatch"); 470 break; 471 } 472 473 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 474 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK " 475 "cipher mismatch"); 476 break; 477 } 478 479 if (!(ie.group_cipher & ssid->group_cipher)) { 480 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK " 481 "cipher mismatch"); 482 break; 483 } 484 485 if (!(ie.key_mgmt & ssid->key_mgmt)) { 486 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt " 487 "mismatch"); 488 break; 489 } 490 491 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE"); 492 return 1; 493 } 494 495 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie && 496 !rsn_ie) { 497 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X"); 498 return 1; 499 } 500 501 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) && 502 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) { 503 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match"); 504 return 0; 505 } 506 507 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) { 508 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2"); 509 return 1; 510 } 511 512 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with " 513 "WPA/WPA2"); 514 515 return 0; 516} 517 518 519static int freq_allowed(int *freqs, int freq) 520{ 521 int i; 522 523 if (freqs == NULL) 524 return 1; 525 526 for (i = 0; freqs[i]; i++) 527 if (freqs[i] == freq) 528 return 1; 529 return 0; 530} 531 532 533static int ht_supported(const struct hostapd_hw_modes *mode) 534{ 535 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) { 536 /* 537 * The driver did not indicate whether it supports HT. Assume 538 * it does to avoid connection issues. 539 */ 540 return 1; 541 } 542 543 /* 544 * IEEE Std 802.11n-2009 20.1.1: 545 * An HT non-AP STA shall support all EQM rates for one spatial stream. 546 */ 547 return mode->mcs_set[0] == 0xff; 548} 549 550 551static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss) 552{ 553 const struct hostapd_hw_modes *mode = NULL, *modes; 554 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES }; 555 const u8 *rate_ie; 556 int i, j, k; 557 558 if (bss->freq == 0) 559 return 1; /* Cannot do matching without knowing band */ 560 561 modes = wpa_s->hw.modes; 562 if (modes == NULL) { 563 /* 564 * The driver does not provide any additional information 565 * about the utilized hardware, so allow the connection attempt 566 * to continue. 567 */ 568 return 1; 569 } 570 571 for (i = 0; i < wpa_s->hw.num_modes; i++) { 572 for (j = 0; j < modes[i].num_channels; j++) { 573 int freq = modes[i].channels[j].freq; 574 if (freq == bss->freq) { 575 if (mode && 576 mode->mode == HOSTAPD_MODE_IEEE80211G) 577 break; /* do not allow 802.11b replace 578 * 802.11g */ 579 mode = &modes[i]; 580 break; 581 } 582 } 583 } 584 585 if (mode == NULL) 586 return 0; 587 588 for (i = 0; i < (int) sizeof(scan_ie); i++) { 589 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]); 590 if (rate_ie == NULL) 591 continue; 592 593 for (j = 2; j < rate_ie[1] + 2; j++) { 594 int flagged = !!(rate_ie[j] & 0x80); 595 int r = (rate_ie[j] & 0x7f) * 5; 596 597 /* 598 * IEEE Std 802.11n-2009 7.3.2.2: 599 * The new BSS Membership selector value is encoded 600 * like a legacy basic rate, but it is not a rate and 601 * only indicates if the BSS members are required to 602 * support the mandatory features of Clause 20 [HT PHY] 603 * in order to join the BSS. 604 */ 605 if (flagged && ((rate_ie[j] & 0x7f) == 606 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) { 607 if (!ht_supported(mode)) { 608 wpa_dbg(wpa_s, MSG_DEBUG, 609 " hardware does not support " 610 "HT PHY"); 611 return 0; 612 } 613 continue; 614 } 615 616 if (!flagged) 617 continue; 618 619 /* check for legacy basic rates */ 620 for (k = 0; k < mode->num_rates; k++) { 621 if (mode->rates[k] == r) 622 break; 623 } 624 if (k == mode->num_rates) { 625 /* 626 * IEEE Std 802.11-2007 7.3.2.2 demands that in 627 * order to join a BSS all required rates 628 * have to be supported by the hardware. 629 */ 630 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does " 631 "not support required rate %d.%d Mbps", 632 r / 10, r % 10); 633 return 0; 634 } 635 } 636 } 637 638 return 1; 639} 640 641 642static int bss_is_dmg(struct wpa_bss *bss) 643{ 644 return bss->freq > 45000; 645} 646 647 648/* 649 * Test whether BSS is in an ESS. 650 * This is done differently in DMG (60 GHz) and non-DMG bands 651 */ 652static int bss_is_ess(struct wpa_bss *bss) 653{ 654 if (bss_is_dmg(bss)) { 655 return (bss->caps & IEEE80211_CAP_DMG_MASK) == 656 IEEE80211_CAP_DMG_AP; 657 } 658 659 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) == 660 IEEE80211_CAP_ESS); 661} 662 663 664static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s, 665 int i, struct wpa_bss *bss, 666 struct wpa_ssid *group) 667{ 668 u8 wpa_ie_len, rsn_ie_len; 669 int wpa; 670 struct wpa_blacklist *e; 671 const u8 *ie; 672 struct wpa_ssid *ssid; 673 674 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 675 wpa_ie_len = ie ? ie[1] : 0; 676 677 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 678 rsn_ie_len = ie ? ie[1] : 0; 679 680 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' " 681 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s", 682 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len), 683 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, 684 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : ""); 685 686 e = wpa_blacklist_get(wpa_s, bss->bssid); 687 if (e) { 688 int limit = 1; 689 if (wpa_supplicant_enabled_networks(wpa_s) == 1) { 690 /* 691 * When only a single network is enabled, we can 692 * trigger blacklisting on the first failure. This 693 * should not be done with multiple enabled networks to 694 * avoid getting forced to move into a worse ESS on 695 * single error if there are no other BSSes of the 696 * current ESS. 697 */ 698 limit = 0; 699 } 700 if (e->count > limit) { 701 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 702 "(count=%d limit=%d)", e->count, limit); 703 return NULL; 704 } 705 } 706 707 if (bss->ssid_len == 0) { 708 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known"); 709 return NULL; 710 } 711 712 if (disallowed_bssid(wpa_s, bss->bssid)) { 713 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed"); 714 return NULL; 715 } 716 717 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) { 718 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed"); 719 return NULL; 720 } 721 722 wpa = wpa_ie_len > 0 || rsn_ie_len > 0; 723 724 for (ssid = group; ssid; ssid = ssid->pnext) { 725 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0); 726 int res; 727 728 if (wpas_network_disabled(wpa_s, ssid)) { 729 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled"); 730 continue; 731 } 732 733 res = wpas_temp_disabled(wpa_s, ssid); 734 if (res > 0) { 735 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled " 736 "temporarily for %d second(s)", res); 737 continue; 738 } 739 740#ifdef CONFIG_WPS 741 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) { 742 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 743 "(WPS)"); 744 continue; 745 } 746 747 if (wpa && ssid->ssid_len == 0 && 748 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 749 check_ssid = 0; 750 751 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 752 /* Only allow wildcard SSID match if an AP 753 * advertises active WPS operation that matches 754 * with our mode. */ 755 check_ssid = 1; 756 if (ssid->ssid_len == 0 && 757 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 758 check_ssid = 0; 759 } 760#endif /* CONFIG_WPS */ 761 762 if (ssid->bssid_set && ssid->ssid_len == 0 && 763 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0) 764 check_ssid = 0; 765 766 if (check_ssid && 767 (bss->ssid_len != ssid->ssid_len || 768 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) { 769 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch"); 770 continue; 771 } 772 773 if (ssid->bssid_set && 774 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) { 775 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch"); 776 continue; 777 } 778 779 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss)) 780 continue; 781 782 if (!wpa && 783 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 784 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) && 785 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) { 786 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network " 787 "not allowed"); 788 continue; 789 } 790 791 if (!wpa_supplicant_match_privacy(bss, ssid)) { 792 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy " 793 "mismatch"); 794 continue; 795 } 796 797 if (!bss_is_ess(bss)) { 798 wpa_dbg(wpa_s, MSG_DEBUG, " skip - not ESS network"); 799 continue; 800 } 801 802 if (!freq_allowed(ssid->freq_list, bss->freq)) { 803 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not " 804 "allowed"); 805 continue; 806 } 807 808 if (!rate_match(wpa_s, bss)) { 809 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do " 810 "not match"); 811 continue; 812 } 813 814#ifdef CONFIG_P2P 815 /* 816 * TODO: skip the AP if its P2P IE has Group Formation 817 * bit set in the P2P Group Capability Bitmap and we 818 * are not in Group Formation with that device. 819 */ 820#endif /* CONFIG_P2P */ 821 822 /* Matching configuration found */ 823 return ssid; 824 } 825 826 /* No matching configuration found */ 827 return NULL; 828} 829 830 831static struct wpa_bss * 832wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, 833 struct wpa_ssid *group, 834 struct wpa_ssid **selected_ssid) 835{ 836 unsigned int i; 837 838 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d", 839 group->priority); 840 841 for (i = 0; i < wpa_s->last_scan_res_used; i++) { 842 struct wpa_bss *bss = wpa_s->last_scan_res[i]; 843 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group); 844 if (!*selected_ssid) 845 continue; 846 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR 847 " ssid='%s'", 848 MAC2STR(bss->bssid), 849 wpa_ssid_txt(bss->ssid, bss->ssid_len)); 850 return bss; 851 } 852 853 return NULL; 854} 855 856 857static struct wpa_bss * 858wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s, 859 struct wpa_ssid **selected_ssid) 860{ 861 struct wpa_bss *selected = NULL; 862 int prio; 863 864 if (wpa_s->last_scan_res == NULL || 865 wpa_s->last_scan_res_used == 0) 866 return NULL; /* no scan results from last update */ 867 868 while (selected == NULL) { 869 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 870 selected = wpa_supplicant_select_bss( 871 wpa_s, wpa_s->conf->pssid[prio], 872 selected_ssid); 873 if (selected) 874 break; 875 } 876 877 if (selected == NULL && wpa_s->blacklist && 878 !wpa_s->countermeasures) { 879 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear " 880 "blacklist and try again"); 881 wpa_blacklist_clear(wpa_s); 882 wpa_s->blacklist_cleared++; 883 } else if (selected == NULL) 884 break; 885 } 886 887 return selected; 888} 889 890 891static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s, 892 int timeout_sec, int timeout_usec) 893{ 894 if (!wpa_supplicant_enabled_networks(wpa_s)) { 895 /* 896 * No networks are enabled; short-circuit request so 897 * we don't wait timeout seconds before transitioning 898 * to INACTIVE state. 899 */ 900 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request " 901 "since there are no enabled networks"); 902 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); 903#ifdef CONFIG_P2P 904 wpa_s->sta_scan_pending = 0; 905#endif /* CONFIG_P2P */ 906 return; 907 } 908 909 wpa_s->scan_for_connection = 1; 910 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec); 911} 912 913 914int wpa_supplicant_connect(struct wpa_supplicant *wpa_s, 915 struct wpa_bss *selected, 916 struct wpa_ssid *ssid) 917{ 918 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) { 919 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP 920 "PBC session overlap"); 921#ifdef CONFIG_P2P 922 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1) 923 return -1; 924#endif /* CONFIG_P2P */ 925 926#ifdef CONFIG_WPS 927 wpas_wps_cancel(wpa_s); 928#endif /* CONFIG_WPS */ 929 return -1; 930 } 931 932 /* 933 * Do not trigger new association unless the BSSID has changed or if 934 * reassociation is requested. If we are in process of associating with 935 * the selected BSSID, do not trigger new attempt. 936 */ 937 if (wpa_s->reassociate || 938 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 && 939 ((wpa_s->wpa_state != WPA_ASSOCIATING && 940 wpa_s->wpa_state != WPA_AUTHENTICATING) || 941 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) != 942 0))) { 943 if (wpa_supplicant_scard_init(wpa_s, ssid)) { 944 wpa_supplicant_req_new_scan(wpa_s, 10, 0); 945 return 0; 946 } 947 wpa_msg(wpa_s, MSG_DEBUG, "Request association: " 948 "reassociate: %d selected: "MACSTR " bssid: " MACSTR 949 " pending: " MACSTR " wpa_state: %s", 950 wpa_s->reassociate, MAC2STR(selected->bssid), 951 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), 952 wpa_supplicant_state_txt(wpa_s->wpa_state)); 953 wpa_supplicant_associate(wpa_s, selected, ssid); 954 } else { 955 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the " 956 "selected AP"); 957 } 958 959 return 0; 960} 961 962 963static struct wpa_ssid * 964wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s) 965{ 966 int prio; 967 struct wpa_ssid *ssid; 968 969 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 970 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext) 971 { 972 if (wpas_network_disabled(wpa_s, ssid)) 973 continue; 974 if (ssid->mode == IEEE80211_MODE_IBSS || 975 ssid->mode == IEEE80211_MODE_AP) 976 return ssid; 977 } 978 } 979 return NULL; 980} 981 982 983/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based 984 * on BSS added and BSS changed events */ 985static void wpa_supplicant_rsn_preauth_scan_results( 986 struct wpa_supplicant *wpa_s) 987{ 988 struct wpa_bss *bss; 989 990 if (rsn_preauth_scan_results(wpa_s->wpa) < 0) 991 return; 992 993 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 994 const u8 *ssid, *rsn; 995 996 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID); 997 if (ssid == NULL) 998 continue; 999 1000 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); 1001 if (rsn == NULL) 1002 continue; 1003 1004 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn); 1005 } 1006 1007} 1008 1009 1010static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s, 1011 struct wpa_bss *selected, 1012 struct wpa_ssid *ssid) 1013{ 1014 struct wpa_bss *current_bss = NULL; 1015 int min_diff; 1016 1017 if (wpa_s->reassociate) 1018 return 1; /* explicit request to reassociate */ 1019 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1020 return 1; /* we are not associated; continue */ 1021 if (wpa_s->current_ssid == NULL) 1022 return 1; /* unknown current SSID */ 1023 if (wpa_s->current_ssid != ssid) 1024 return 1; /* different network block */ 1025 1026 if (wpas_driver_bss_selection(wpa_s)) 1027 return 0; /* Driver-based roaming */ 1028 1029 if (wpa_s->current_ssid->ssid) 1030 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid, 1031 wpa_s->current_ssid->ssid, 1032 wpa_s->current_ssid->ssid_len); 1033 if (!current_bss) 1034 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid); 1035 1036 if (!current_bss) 1037 return 1; /* current BSS not seen in scan results */ 1038 1039 if (current_bss == selected) 1040 return 0; 1041 1042 if (selected->last_update_idx > current_bss->last_update_idx) 1043 return 1; /* current BSS not seen in the last scan */ 1044 1045#ifndef CONFIG_NO_ROAMING 1046 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation"); 1047 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d", 1048 MAC2STR(current_bss->bssid), current_bss->level); 1049 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d", 1050 MAC2STR(selected->bssid), selected->level); 1051 1052 if (wpa_s->current_ssid->bssid_set && 1053 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) == 1054 0) { 1055 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS " 1056 "has preferred BSSID"); 1057 return 1; 1058 } 1059 1060 if (current_bss->level < 0 && current_bss->level > selected->level) { 1061 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better " 1062 "signal level"); 1063 return 0; 1064 } 1065 1066 min_diff = 2; 1067 if (current_bss->level < 0) { 1068 if (current_bss->level < -85) 1069 min_diff = 1; 1070 else if (current_bss->level < -80) 1071 min_diff = 2; 1072 else if (current_bss->level < -75) 1073 min_diff = 3; 1074 else if (current_bss->level < -70) 1075 min_diff = 4; 1076 else 1077 min_diff = 5; 1078 } 1079 if (abs(current_bss->level - selected->level) < min_diff) { 1080 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference " 1081 "in signal level"); 1082 return 0; 1083 } 1084 1085 return 1; 1086#else /* CONFIG_NO_ROAMING */ 1087 return 0; 1088#endif /* CONFIG_NO_ROAMING */ 1089} 1090 1091 1092/* Return != 0 if no scan results could be fetched or if scan results should not 1093 * be shared with other virtual interfaces. */ 1094#ifdef ANDROID_P2P 1095static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1096 union wpa_event_data *data, int suppress_event) 1097#else 1098static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1099 union wpa_event_data *data) 1100#endif 1101{ 1102 struct wpa_scan_results *scan_res; 1103 int ap = 0; 1104#ifndef CONFIG_NO_RANDOM_POOL 1105 size_t i, num; 1106#endif /* CONFIG_NO_RANDOM_POOL */ 1107 1108#ifdef CONFIG_AP 1109 if (wpa_s->ap_iface) 1110 ap = 1; 1111#endif /* CONFIG_AP */ 1112 1113 wpa_supplicant_notify_scanning(wpa_s, 0); 1114 1115#ifdef CONFIG_P2P 1116 if (wpa_s->global->p2p_cb_on_scan_complete && 1117 !wpa_s->global->p2p_disabled && 1118 wpa_s->global->p2p != NULL && !wpa_s->sta_scan_pending && 1119 !wpa_s->scan_res_handler) { 1120 wpa_s->global->p2p_cb_on_scan_complete = 0; 1121 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) { 1122 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation " 1123 "stopped scan processing"); 1124 wpa_s->sta_scan_pending = 1; 1125 wpa_supplicant_req_scan(wpa_s, 5, 0); 1126 return -1; 1127 } 1128 } 1129 wpa_s->sta_scan_pending = 0; 1130#endif /* CONFIG_P2P */ 1131 1132 scan_res = wpa_supplicant_get_scan_results(wpa_s, 1133 data ? &data->scan_info : 1134 NULL, 1); 1135 if (scan_res == NULL) { 1136 if (wpa_s->conf->ap_scan == 2 || ap || 1137 wpa_s->scan_res_handler == scan_only_handler) 1138 return -1; 1139 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try " 1140 "scanning again"); 1141 wpa_supplicant_req_new_scan(wpa_s, 1, 0); 1142 return -1; 1143 } 1144 1145#ifndef CONFIG_NO_RANDOM_POOL 1146 num = scan_res->num; 1147 if (num > 10) 1148 num = 10; 1149 for (i = 0; i < num; i++) { 1150 u8 buf[5]; 1151 struct wpa_scan_res *res = scan_res->res[i]; 1152 buf[0] = res->bssid[5]; 1153 buf[1] = res->qual & 0xff; 1154 buf[2] = res->noise & 0xff; 1155 buf[3] = res->level & 0xff; 1156 buf[4] = res->tsf & 0xff; 1157 random_add_randomness(buf, sizeof(buf)); 1158 } 1159#endif /* CONFIG_NO_RANDOM_POOL */ 1160 1161 if (wpa_s->scan_res_handler) { 1162 void (*scan_res_handler)(struct wpa_supplicant *wpa_s, 1163 struct wpa_scan_results *scan_res); 1164 1165 scan_res_handler = wpa_s->scan_res_handler; 1166 wpa_s->scan_res_handler = NULL; 1167 scan_res_handler(wpa_s, scan_res); 1168 1169 wpa_scan_results_free(scan_res); 1170 return -2; 1171 } 1172 1173 if (ap) { 1174 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode"); 1175#ifdef CONFIG_AP 1176 if (wpa_s->ap_iface->scan_cb) 1177 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface); 1178#endif /* CONFIG_AP */ 1179 wpa_scan_results_free(scan_res); 1180 return 0; 1181 } 1182#ifdef ANDROID_P2P 1183 if(!suppress_event) 1184 { 1185 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available"); 1186 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); 1187 wpas_notify_scan_results(wpa_s); 1188 } 1189#else 1190 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available"); 1191 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); 1192 wpas_notify_scan_results(wpa_s); 1193#endif 1194 1195 wpas_notify_scan_done(wpa_s, 1); 1196 1197 if (sme_proc_obss_scan(wpa_s) > 0) { 1198 wpa_scan_results_free(scan_res); 1199 return 0; 1200 } 1201 1202 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) { 1203 wpa_scan_results_free(scan_res); 1204 return 0; 1205 } 1206 1207 if (autoscan_notify_scan(wpa_s, scan_res)) { 1208 wpa_scan_results_free(scan_res); 1209 return 0; 1210 } 1211 1212 if (wpa_s->disconnected) { 1213 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 1214 wpa_scan_results_free(scan_res); 1215 return 0; 1216 } 1217 1218 if (!wpas_driver_bss_selection(wpa_s) && 1219 bgscan_notify_scan(wpa_s, scan_res) == 1) { 1220 wpa_scan_results_free(scan_res); 1221 return 0; 1222 } 1223 1224 wpas_wps_update_ap_info(wpa_s, scan_res); 1225 1226 wpa_scan_results_free(scan_res); 1227 1228 return wpas_select_network_from_last_scan(wpa_s); 1229} 1230 1231 1232static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s) 1233{ 1234 struct wpa_bss *selected; 1235 struct wpa_ssid *ssid = NULL; 1236 1237 selected = wpa_supplicant_pick_network(wpa_s, &ssid); 1238 1239 if (selected) { 1240 int skip; 1241 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid); 1242 if (skip) { 1243 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1244 return 0; 1245 } 1246 1247 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) { 1248 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed"); 1249 return -1; 1250 } 1251 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1252 /* 1253 * Do not notify other virtual radios of scan results since we do not 1254 * want them to start other associations at the same time. 1255 */ 1256 return 1; 1257 } else { 1258 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found"); 1259 ssid = wpa_supplicant_pick_new_network(wpa_s); 1260 if (ssid) { 1261 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network"); 1262 wpa_supplicant_associate(wpa_s, NULL, ssid); 1263 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1264 } else { 1265 int timeout_sec = wpa_s->scan_interval; 1266 int timeout_usec = 0; 1267#ifdef CONFIG_P2P 1268 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1) 1269 return 0; 1270 1271 if (wpa_s->p2p_in_provisioning) { 1272 /* 1273 * Use shorter wait during P2P Provisioning 1274 * state to speed up group formation. 1275 */ 1276 timeout_sec = 0; 1277 timeout_usec = 250000; 1278 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1279 timeout_usec); 1280 return 0; 1281 } 1282#endif /* CONFIG_P2P */ 1283#ifdef CONFIG_INTERWORKING 1284 if (wpa_s->conf->auto_interworking && 1285 wpa_s->conf->interworking && 1286 wpa_s->conf->cred) { 1287 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: " 1288 "start ANQP fetch since no matching " 1289 "networks found"); 1290 wpa_s->network_select = 1; 1291 wpa_s->auto_network_select = 1; 1292 interworking_start_fetch_anqp(wpa_s); 1293 return 1; 1294 } 1295#endif /* CONFIG_INTERWORKING */ 1296 if (wpa_supplicant_req_sched_scan(wpa_s)) 1297 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1298 timeout_usec); 1299 } 1300 } 1301 return 0; 1302} 1303 1304 1305static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1306 union wpa_event_data *data) 1307{ 1308 const char *rn, *rn2; 1309 struct wpa_supplicant *ifs; 1310#ifdef ANDROID_P2P 1311 if (_wpa_supplicant_event_scan_results(wpa_s, data, 0) != 0) { 1312#else 1313 if (_wpa_supplicant_event_scan_results(wpa_s, data) != 0) { 1314#endif 1315 /* 1316 * If no scan results could be fetched, then no need to 1317 * notify those interfaces that did not actually request 1318 * this scan. Similarly, if scan results started a new operation on this 1319 * interface, do not notify other interfaces to avoid concurrent 1320 * operations during a connection attempt. 1321 */ 1322 return; 1323 } 1324 1325 /* 1326 * Check other interfaces to see if they have the same radio-name. If 1327 * so, they get updated with this same scan info. 1328 */ 1329 if (!wpa_s->driver->get_radio_name) 1330 return; 1331 1332 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv); 1333 if (rn == NULL || rn[0] == '\0') 1334 return; 1335 1336 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces " 1337 "sharing same radio (%s) in event_scan_results", rn); 1338 1339 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) { 1340 if (ifs == wpa_s || !ifs->driver->get_radio_name) 1341 continue; 1342 1343 rn2 = ifs->driver->get_radio_name(ifs->drv_priv); 1344 if (rn2 && os_strcmp(rn, rn2) == 0) { 1345 wpa_printf(MSG_DEBUG, "%s: Updating scan results from " 1346 "sibling", ifs->ifname); 1347#ifdef ANDROID_P2P 1348 if ( (ifs->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) || (ifs->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)) { 1349 /* Do not update the scan results from STA interface to p2p interfaces */ 1350 wpa_printf(MSG_DEBUG, "Not Updating scan results on interface %s from " 1351 "sibling %s", ifs->ifname, wpa_s->ifname); 1352 continue; 1353 } 1354 else { 1355 /* P2P_FIND will result in too many SCAN_RESULT_EVENTS within 1356 * no time. Avoid announcing it to application as it may not 1357 * be that useful (since results will be that of only 1,6,11). 1358 * over to any other interface as it 1359 */ 1360 if(p2p_search_in_progress(wpa_s->global->p2p)) 1361 _wpa_supplicant_event_scan_results(ifs, data, 1); 1362 else 1363 _wpa_supplicant_event_scan_results(ifs, data, 0); 1364 } 1365#else 1366 _wpa_supplicant_event_scan_results(ifs, data); 1367#endif 1368 } 1369 } 1370} 1371 1372#endif /* CONFIG_NO_SCAN_PROCESSING */ 1373 1374 1375int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s) 1376{ 1377#ifdef CONFIG_NO_SCAN_PROCESSING 1378 return -1; 1379#else /* CONFIG_NO_SCAN_PROCESSING */ 1380 struct os_time now; 1381 1382 if (wpa_s->last_scan_res_used <= 0) 1383 return -1; 1384 1385 os_get_time(&now); 1386 if (now.sec - wpa_s->last_scan.sec > 5) { 1387 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results"); 1388 return -1; 1389 } 1390 1391 return wpas_select_network_from_last_scan(wpa_s); 1392#endif /* CONFIG_NO_SCAN_PROCESSING */ 1393} 1394 1395#ifdef CONFIG_WNM 1396 1397static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx) 1398{ 1399 struct wpa_supplicant *wpa_s = eloop_ctx; 1400 1401 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1402 return; 1403 1404 if (!wpa_s->no_keep_alive) { 1405 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR, 1406 MAC2STR(wpa_s->bssid)); 1407 /* TODO: could skip this if normal data traffic has been sent */ 1408 /* TODO: Consider using some more appropriate data frame for 1409 * this */ 1410 if (wpa_s->l2) 1411 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, 1412 (u8 *) "", 0); 1413 } 1414 1415#ifdef CONFIG_SME 1416 if (wpa_s->sme.bss_max_idle_period) { 1417 unsigned int msec; 1418 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */ 1419 if (msec > 100) 1420 msec -= 100; 1421 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1422 wnm_bss_keep_alive, wpa_s, NULL); 1423 } 1424#endif /* CONFIG_SME */ 1425} 1426 1427 1428static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s, 1429 const u8 *ies, size_t ies_len) 1430{ 1431 struct ieee802_11_elems elems; 1432 1433 if (ies == NULL) 1434 return; 1435 1436 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 1437 return; 1438 1439#ifdef CONFIG_SME 1440 if (elems.bss_max_idle_period) { 1441 unsigned int msec; 1442 wpa_s->sme.bss_max_idle_period = 1443 WPA_GET_LE16(elems.bss_max_idle_period); 1444 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 " 1445 "TU)%s", wpa_s->sme.bss_max_idle_period, 1446 (elems.bss_max_idle_period[2] & 0x01) ? 1447 " (protected keep-live required)" : ""); 1448 if (wpa_s->sme.bss_max_idle_period == 0) 1449 wpa_s->sme.bss_max_idle_period = 1; 1450 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) { 1451 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1452 /* msec times 1000 */ 1453 msec = wpa_s->sme.bss_max_idle_period * 1024; 1454 if (msec > 100) 1455 msec -= 100; 1456 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1457 wnm_bss_keep_alive, wpa_s, 1458 NULL); 1459 } 1460 } 1461#endif /* CONFIG_SME */ 1462} 1463 1464#endif /* CONFIG_WNM */ 1465 1466 1467void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s) 1468{ 1469#ifdef CONFIG_WNM 1470 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1471#endif /* CONFIG_WNM */ 1472} 1473 1474 1475static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s, 1476 union wpa_event_data *data) 1477{ 1478 int l, len, found = 0, wpa_found, rsn_found; 1479 const u8 *p; 1480 1481 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); 1482 if (data->assoc_info.req_ies) 1483 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, 1484 data->assoc_info.req_ies_len); 1485 if (data->assoc_info.resp_ies) { 1486 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, 1487 data->assoc_info.resp_ies_len); 1488#ifdef CONFIG_TDLS 1489 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies, 1490 data->assoc_info.resp_ies_len); 1491#endif /* CONFIG_TDLS */ 1492#ifdef CONFIG_WNM 1493 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 1494 data->assoc_info.resp_ies_len); 1495#endif /* CONFIG_WNM */ 1496 } 1497 if (data->assoc_info.beacon_ies) 1498 wpa_hexdump(MSG_DEBUG, "beacon_ies", 1499 data->assoc_info.beacon_ies, 1500 data->assoc_info.beacon_ies_len); 1501 if (data->assoc_info.freq) 1502 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", 1503 data->assoc_info.freq); 1504 1505 p = data->assoc_info.req_ies; 1506 l = data->assoc_info.req_ies_len; 1507 1508 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ 1509 while (p && l >= 2) { 1510 len = p[1] + 2; 1511 if (len > l) { 1512 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1513 p, l); 1514 break; 1515 } 1516 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1517 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || 1518 (p[0] == WLAN_EID_RSN && p[1] >= 2)) { 1519 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) 1520 break; 1521 found = 1; 1522 wpa_find_assoc_pmkid(wpa_s); 1523 break; 1524 } 1525 l -= len; 1526 p += len; 1527 } 1528 if (!found && data->assoc_info.req_ies) 1529 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); 1530 1531#ifdef CONFIG_IEEE80211R 1532#ifdef CONFIG_SME 1533 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { 1534 u8 bssid[ETH_ALEN]; 1535 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 1536 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 1537 data->assoc_info.resp_ies, 1538 data->assoc_info.resp_ies_len, 1539 bssid) < 0) { 1540 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 1541 "Reassociation Response failed"); 1542 wpa_supplicant_deauthenticate( 1543 wpa_s, WLAN_REASON_INVALID_IE); 1544 return -1; 1545 } 1546 } 1547 1548 p = data->assoc_info.resp_ies; 1549 l = data->assoc_info.resp_ies_len; 1550 1551#ifdef CONFIG_WPS_STRICT 1552 if (p && wpa_s->current_ssid && 1553 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { 1554 struct wpabuf *wps; 1555 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); 1556 if (wps == NULL) { 1557 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " 1558 "include WPS IE in (Re)Association Response"); 1559 return -1; 1560 } 1561 1562 if (wps_validate_assoc_resp(wps) < 0) { 1563 wpabuf_free(wps); 1564 wpa_supplicant_deauthenticate( 1565 wpa_s, WLAN_REASON_INVALID_IE); 1566 return -1; 1567 } 1568 wpabuf_free(wps); 1569 } 1570#endif /* CONFIG_WPS_STRICT */ 1571 1572 /* Go through the IEs and make a copy of the MDIE, if present. */ 1573 while (p && l >= 2) { 1574 len = p[1] + 2; 1575 if (len > l) { 1576 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1577 p, l); 1578 break; 1579 } 1580 if (p[0] == WLAN_EID_MOBILITY_DOMAIN && 1581 p[1] >= MOBILITY_DOMAIN_ID_LEN) { 1582 wpa_s->sme.ft_used = 1; 1583 os_memcpy(wpa_s->sme.mobility_domain, p + 2, 1584 MOBILITY_DOMAIN_ID_LEN); 1585 break; 1586 } 1587 l -= len; 1588 p += len; 1589 } 1590#endif /* CONFIG_SME */ 1591 1592 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, 1593 data->assoc_info.resp_ies_len); 1594#endif /* CONFIG_IEEE80211R */ 1595 1596 /* WPA/RSN IE from Beacon/ProbeResp */ 1597 p = data->assoc_info.beacon_ies; 1598 l = data->assoc_info.beacon_ies_len; 1599 1600 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. 1601 */ 1602 wpa_found = rsn_found = 0; 1603 while (p && l >= 2) { 1604 len = p[1] + 2; 1605 if (len > l) { 1606 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", 1607 p, l); 1608 break; 1609 } 1610 if (!wpa_found && 1611 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1612 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { 1613 wpa_found = 1; 1614 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); 1615 } 1616 1617 if (!rsn_found && 1618 p[0] == WLAN_EID_RSN && p[1] >= 2) { 1619 rsn_found = 1; 1620 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); 1621 } 1622 1623 l -= len; 1624 p += len; 1625 } 1626 1627 if (!wpa_found && data->assoc_info.beacon_ies) 1628 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); 1629 if (!rsn_found && data->assoc_info.beacon_ies) 1630 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); 1631 if (wpa_found || rsn_found) 1632 wpa_s->ap_ies_from_associnfo = 1; 1633 1634 if (wpa_s->assoc_freq && data->assoc_info.freq && 1635 wpa_s->assoc_freq != data->assoc_info.freq) { 1636 wpa_printf(MSG_DEBUG, "Operating frequency changed from " 1637 "%u to %u MHz", 1638 wpa_s->assoc_freq, data->assoc_info.freq); 1639 wpa_supplicant_update_scan_results(wpa_s); 1640 } 1641 1642 wpa_s->assoc_freq = data->assoc_info.freq; 1643 1644 return 0; 1645} 1646 1647 1648static struct wpa_bss * wpa_supplicant_get_new_bss( 1649 struct wpa_supplicant *wpa_s, const u8 *bssid) 1650{ 1651 struct wpa_bss *bss = NULL; 1652 struct wpa_ssid *ssid = wpa_s->current_ssid; 1653 1654 if (ssid->ssid_len > 0) 1655 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len); 1656 if (!bss) 1657 bss = wpa_bss_get_bssid(wpa_s, bssid); 1658 1659 return bss; 1660} 1661 1662 1663static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s) 1664{ 1665 const u8 *bss_wpa = NULL, *bss_rsn = NULL; 1666 1667 if (!wpa_s->current_bss || !wpa_s->current_ssid) 1668 return -1; 1669 1670 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt)) 1671 return 0; 1672 1673 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss, 1674 WPA_IE_VENDOR_TYPE); 1675 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN); 1676 1677 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, 1678 bss_wpa ? 2 + bss_wpa[1] : 0) || 1679 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, 1680 bss_rsn ? 2 + bss_rsn[1] : 0)) 1681 return -1; 1682 1683 return 0; 1684} 1685 1686 1687static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, 1688 union wpa_event_data *data) 1689{ 1690 u8 bssid[ETH_ALEN]; 1691 int ft_completed; 1692 struct wpa_driver_capa capa; 1693 1694#ifdef CONFIG_AP 1695 if (wpa_s->ap_iface) { 1696 hostapd_notif_assoc(wpa_s->ap_iface->bss[0], 1697 data->assoc_info.addr, 1698 data->assoc_info.req_ies, 1699 data->assoc_info.req_ies_len, 1700 data->assoc_info.reassoc); 1701 return; 1702 } 1703#endif /* CONFIG_AP */ 1704 1705 ft_completed = wpa_ft_is_completed(wpa_s->wpa); 1706 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) 1707 return; 1708 1709 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { 1710 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID"); 1711 wpa_supplicant_deauthenticate( 1712 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1713 return; 1714 } 1715 1716 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); 1717 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) { 1718 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" 1719 MACSTR, MAC2STR(bssid)); 1720 random_add_randomness(bssid, ETH_ALEN); 1721 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); 1722 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 1723 wpas_notify_bssid_changed(wpa_s); 1724 1725 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { 1726 wpa_clear_keys(wpa_s, bssid); 1727 } 1728 if (wpa_supplicant_select_config(wpa_s) < 0) { 1729 wpa_supplicant_deauthenticate( 1730 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1731 return; 1732 } 1733 if (wpa_s->current_ssid) { 1734 struct wpa_bss *bss = NULL; 1735 1736 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 1737 if (!bss) { 1738 wpa_supplicant_update_scan_results(wpa_s); 1739 1740 /* Get the BSS from the new scan results */ 1741 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 1742 } 1743 1744 if (bss) 1745 wpa_s->current_bss = bss; 1746 } 1747 1748#ifdef ANDROID 1749 if (wpa_s->conf->ap_scan == 1) { 1750#else 1751 if (wpa_s->conf->ap_scan == 1 && 1752 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) { 1753#endif 1754 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0) 1755 wpa_msg(wpa_s, MSG_WARNING, 1756 "WPA/RSN IEs not updated"); 1757 } 1758 } 1759 1760#ifdef CONFIG_SME 1761 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); 1762 wpa_s->sme.prev_bssid_set = 1; 1763#endif /* CONFIG_SME */ 1764 1765 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); 1766 if (wpa_s->current_ssid) { 1767 /* When using scanning (ap_scan=1), SIM PC/SC interface can be 1768 * initialized before association, but for other modes, 1769 * initialize PC/SC here, if the current configuration needs 1770 * smartcard or SIM/USIM. */ 1771 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); 1772 } 1773 wpa_sm_notify_assoc(wpa_s->wpa, bssid); 1774 if (wpa_s->l2) 1775 l2_packet_notify_auth_start(wpa_s->l2); 1776 1777 /* 1778 * Set portEnabled first to FALSE in order to get EAP state machine out 1779 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE 1780 * state machine may transit to AUTHENTICATING state based on obsolete 1781 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to 1782 * AUTHENTICATED without ever giving chance to EAP state machine to 1783 * reset the state. 1784 */ 1785 if (!ft_completed) { 1786 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 1787 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 1788 } 1789 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed) 1790 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 1791 /* 802.1X::portControl = Auto */ 1792 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); 1793 wpa_s->eapol_received = 0; 1794 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1795 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || 1796 (wpa_s->current_ssid && 1797 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { 1798 wpa_supplicant_cancel_auth_timeout(wpa_s); 1799 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1800 } else if (!ft_completed) { 1801 /* Timeout for receiving the first EAPOL packet */ 1802 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); 1803 } 1804 wpa_supplicant_cancel_scan(wpa_s); 1805 1806 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1807 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { 1808 /* 1809 * We are done; the driver will take care of RSN 4-way 1810 * handshake. 1811 */ 1812 wpa_supplicant_cancel_auth_timeout(wpa_s); 1813 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1814 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1815 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1816 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1817 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { 1818 /* 1819 * The driver will take care of RSN 4-way handshake, so we need 1820 * to allow EAPOL supplicant to complete its work without 1821 * waiting for WPA supplicant. 1822 */ 1823 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1824 } else if (ft_completed) { 1825 /* 1826 * FT protocol completed - make sure EAPOL state machine ends 1827 * up in authenticated. 1828 */ 1829 wpa_supplicant_cancel_auth_timeout(wpa_s); 1830 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1831 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1832 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1833 } 1834 1835 wpa_s->last_eapol_matches_bssid = 0; 1836 1837 if (wpa_s->pending_eapol_rx) { 1838 struct os_time now, age; 1839 os_get_time(&now); 1840 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age); 1841 if (age.sec == 0 && age.usec < 100000 && 1842 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == 1843 0) { 1844 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " 1845 "frame that was received just before " 1846 "association notification"); 1847 wpa_supplicant_rx_eapol( 1848 wpa_s, wpa_s->pending_eapol_rx_src, 1849 wpabuf_head(wpa_s->pending_eapol_rx), 1850 wpabuf_len(wpa_s->pending_eapol_rx)); 1851 } 1852 wpabuf_free(wpa_s->pending_eapol_rx); 1853 wpa_s->pending_eapol_rx = NULL; 1854 } 1855 1856 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1857 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 1858 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 && 1859 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) { 1860 /* Set static WEP keys again */ 1861 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); 1862 } 1863 1864#ifdef CONFIG_IBSS_RSN 1865 if (wpa_s->current_ssid && 1866 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 1867 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && 1868 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE && 1869 wpa_s->ibss_rsn == NULL) { 1870 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s); 1871 if (!wpa_s->ibss_rsn) { 1872 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN"); 1873 wpa_supplicant_deauthenticate( 1874 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1875 return; 1876 } 1877 1878 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk); 1879 } 1880#endif /* CONFIG_IBSS_RSN */ 1881 1882 wpas_wps_notify_assoc(wpa_s, bssid); 1883} 1884 1885 1886static int disconnect_reason_recoverable(u16 reason_code) 1887{ 1888 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY || 1889 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA || 1890 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA; 1891} 1892 1893 1894static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s, 1895 u16 reason_code, 1896 int locally_generated) 1897{ 1898 const u8 *bssid; 1899 1900 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 1901 /* 1902 * At least Host AP driver and a Prism3 card seemed to be 1903 * generating streams of disconnected events when configuring 1904 * IBSS for WPA-None. Ignore them for now. 1905 */ 1906 return; 1907 } 1908 1909 bssid = wpa_s->bssid; 1910 if (is_zero_ether_addr(bssid)) 1911 bssid = wpa_s->pending_bssid; 1912 1913 if (!is_zero_ether_addr(bssid) || 1914 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 1915 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR 1916 " reason=%d%s", 1917 MAC2STR(bssid), reason_code, 1918 locally_generated ? " locally_generated=1" : ""); 1919 } 1920} 1921 1922 1923static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code, 1924 int locally_generated) 1925{ 1926 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE || 1927 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 1928 return 0; /* Not in 4-way handshake with PSK */ 1929 1930 /* 1931 * It looks like connection was lost while trying to go through PSK 1932 * 4-way handshake. Filter out known disconnection cases that are caused 1933 * by something else than PSK mismatch to avoid confusing reports. 1934 */ 1935 1936 if (locally_generated) { 1937 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS) 1938 return 0; 1939 } 1940 1941 return 1; 1942} 1943 1944 1945static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s, 1946 u16 reason_code, 1947 int locally_generated) 1948{ 1949 const u8 *bssid; 1950 int authenticating; 1951 u8 prev_pending_bssid[ETH_ALEN]; 1952 struct wpa_bss *fast_reconnect = NULL; 1953 struct wpa_ssid *fast_reconnect_ssid = NULL; 1954 struct wpa_ssid *last_ssid; 1955 1956 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING; 1957 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN); 1958 1959 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 1960 /* 1961 * At least Host AP driver and a Prism3 card seemed to be 1962 * generating streams of disconnected events when configuring 1963 * IBSS for WPA-None. Ignore them for now. 1964 */ 1965 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in " 1966 "IBSS/WPA-None mode"); 1967 return; 1968 } 1969 1970 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) { 1971 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - " 1972 "pre-shared key may be incorrect"); 1973 wpas_auth_failed(wpa_s); 1974 } 1975 if (!wpa_s->auto_reconnect_disabled || 1976 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) { 1977 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to " 1978 "reconnect (wps=%d wpa_state=%d)", 1979 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS, 1980 wpa_s->wpa_state); 1981 if (wpa_s->wpa_state == WPA_COMPLETED && 1982 wpa_s->current_ssid && 1983 wpa_s->current_ssid->mode == WPAS_MODE_INFRA && 1984 !locally_generated && 1985 disconnect_reason_recoverable(reason_code)) { 1986 /* 1987 * It looks like the AP has dropped association with 1988 * us, but could allow us to get back in. Try to 1989 * reconnect to the same BSS without full scan to save 1990 * time for some common cases. 1991 */ 1992 fast_reconnect = wpa_s->current_bss; 1993 fast_reconnect_ssid = wpa_s->current_ssid; 1994 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) 1995#ifdef ANDROID 1996 wpa_supplicant_req_scan(wpa_s, 0, 500000); 1997#else 1998 wpa_supplicant_req_scan(wpa_s, 0, 100000); 1999#endif 2000 else 2001 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new " 2002 "immediate scan"); 2003 } else { 2004 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not " 2005 "try to re-connect"); 2006 wpa_s->reassociate = 0; 2007 wpa_s->disconnected = 1; 2008 wpa_supplicant_cancel_sched_scan(wpa_s); 2009 } 2010 bssid = wpa_s->bssid; 2011 if (is_zero_ether_addr(bssid)) 2012 bssid = wpa_s->pending_bssid; 2013 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 2014 wpas_connection_failed(wpa_s, bssid); 2015 wpa_sm_notify_disassoc(wpa_s->wpa); 2016 if (locally_generated) 2017 wpa_s->disconnect_reason = -reason_code; 2018 else 2019 wpa_s->disconnect_reason = reason_code; 2020 wpas_notify_disconnect_reason(wpa_s); 2021 if (wpa_supplicant_dynamic_keys(wpa_s)) { 2022 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys"); 2023 wpa_s->keys_cleared = 0; 2024 wpa_clear_keys(wpa_s, wpa_s->bssid); 2025 } 2026 last_ssid = wpa_s->current_ssid; 2027 wpa_supplicant_mark_disassoc(wpa_s); 2028 2029 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) { 2030 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); 2031 wpa_s->current_ssid = last_ssid; 2032 } 2033 2034 if (fast_reconnect) { 2035#ifndef CONFIG_NO_SCAN_PROCESSING 2036 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS"); 2037 if (wpa_supplicant_connect(wpa_s, fast_reconnect, 2038 fast_reconnect_ssid) < 0) { 2039 /* Recover through full scan */ 2040 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2041 } 2042#endif /* CONFIG_NO_SCAN_PROCESSING */ 2043 } 2044} 2045 2046 2047#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2048void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx) 2049{ 2050 struct wpa_supplicant *wpa_s = eloop_ctx; 2051 2052 if (!wpa_s->pending_mic_error_report) 2053 return; 2054 2055 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report"); 2056 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise); 2057 wpa_s->pending_mic_error_report = 0; 2058} 2059#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2060 2061 2062static void 2063wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s, 2064 union wpa_event_data *data) 2065{ 2066 int pairwise; 2067 struct os_time t; 2068 2069 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); 2070 pairwise = (data && data->michael_mic_failure.unicast); 2071 os_get_time(&t); 2072 if ((wpa_s->last_michael_mic_error && 2073 t.sec - wpa_s->last_michael_mic_error <= 60) || 2074 wpa_s->pending_mic_error_report) { 2075 if (wpa_s->pending_mic_error_report) { 2076 /* 2077 * Send the pending MIC error report immediately since 2078 * we are going to start countermeasures and AP better 2079 * do the same. 2080 */ 2081 wpa_sm_key_request(wpa_s->wpa, 1, 2082 wpa_s->pending_mic_error_pairwise); 2083 } 2084 2085 /* Send the new MIC error report immediately since we are going 2086 * to start countermeasures and AP better do the same. 2087 */ 2088 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2089 2090 /* initialize countermeasures */ 2091 wpa_s->countermeasures = 1; 2092 2093 wpa_blacklist_add(wpa_s, wpa_s->bssid); 2094 2095 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started"); 2096 2097 /* 2098 * Need to wait for completion of request frame. We do not get 2099 * any callback for the message completion, so just wait a 2100 * short while and hope for the best. */ 2101 os_sleep(0, 10000); 2102 2103 wpa_drv_set_countermeasures(wpa_s, 1); 2104 wpa_supplicant_deauthenticate(wpa_s, 2105 WLAN_REASON_MICHAEL_MIC_FAILURE); 2106 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, 2107 wpa_s, NULL); 2108 eloop_register_timeout(60, 0, 2109 wpa_supplicant_stop_countermeasures, 2110 wpa_s, NULL); 2111 /* TODO: mark the AP rejected for 60 second. STA is 2112 * allowed to associate with another AP.. */ 2113 } else { 2114#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2115 if (wpa_s->mic_errors_seen) { 2116 /* 2117 * Reduce the effectiveness of Michael MIC error 2118 * reports as a means for attacking against TKIP if 2119 * more than one MIC failure is noticed with the same 2120 * PTK. We delay the transmission of the reports by a 2121 * random time between 0 and 60 seconds in order to 2122 * force the attacker wait 60 seconds before getting 2123 * the information on whether a frame resulted in a MIC 2124 * failure. 2125 */ 2126 u8 rval[4]; 2127 int sec; 2128 2129 if (os_get_random(rval, sizeof(rval)) < 0) 2130 sec = os_random() % 60; 2131 else 2132 sec = WPA_GET_BE32(rval) % 60; 2133 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error " 2134 "report %d seconds", sec); 2135 wpa_s->pending_mic_error_report = 1; 2136 wpa_s->pending_mic_error_pairwise = pairwise; 2137 eloop_cancel_timeout( 2138 wpa_supplicant_delayed_mic_error_report, 2139 wpa_s, NULL); 2140 eloop_register_timeout( 2141 sec, os_random() % 1000000, 2142 wpa_supplicant_delayed_mic_error_report, 2143 wpa_s, NULL); 2144 } else { 2145 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2146 } 2147#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2148 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2149#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2150 } 2151 wpa_s->last_michael_mic_error = t.sec; 2152 wpa_s->mic_errors_seen++; 2153} 2154 2155 2156#ifdef CONFIG_TERMINATE_ONLASTIF 2157static int any_interfaces(struct wpa_supplicant *head) 2158{ 2159 struct wpa_supplicant *wpa_s; 2160 2161 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) 2162 if (!wpa_s->interface_removed) 2163 return 1; 2164 return 0; 2165} 2166#endif /* CONFIG_TERMINATE_ONLASTIF */ 2167 2168 2169static void 2170wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, 2171 union wpa_event_data *data) 2172{ 2173 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) 2174 return; 2175 2176 switch (data->interface_status.ievent) { 2177 case EVENT_INTERFACE_ADDED: 2178 if (!wpa_s->interface_removed) 2179 break; 2180 wpa_s->interface_removed = 0; 2181 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); 2182 if (wpa_supplicant_driver_init(wpa_s) < 0) { 2183 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " 2184 "driver after interface was added"); 2185 } 2186 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 2187 break; 2188 case EVENT_INTERFACE_REMOVED: 2189 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed"); 2190 wpa_s->interface_removed = 1; 2191 wpa_supplicant_mark_disassoc(wpa_s); 2192 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2193 l2_packet_deinit(wpa_s->l2); 2194 wpa_s->l2 = NULL; 2195#ifdef CONFIG_IBSS_RSN 2196 ibss_rsn_deinit(wpa_s->ibss_rsn); 2197 wpa_s->ibss_rsn = NULL; 2198#endif /* CONFIG_IBSS_RSN */ 2199#ifdef CONFIG_TERMINATE_ONLASTIF 2200 /* check if last interface */ 2201 if (!any_interfaces(wpa_s->global->ifaces)) 2202 eloop_terminate(); 2203#endif /* CONFIG_TERMINATE_ONLASTIF */ 2204 break; 2205 } 2206} 2207 2208 2209#ifdef CONFIG_PEERKEY 2210static void 2211wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s, 2212 union wpa_event_data *data) 2213{ 2214 if (data == NULL) 2215 return; 2216 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer); 2217} 2218#endif /* CONFIG_PEERKEY */ 2219 2220 2221#ifdef CONFIG_TDLS 2222static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s, 2223 union wpa_event_data *data) 2224{ 2225 if (data == NULL) 2226 return; 2227 switch (data->tdls.oper) { 2228 case TDLS_REQUEST_SETUP: 2229 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer); 2230 if (wpa_tdls_is_external_setup(wpa_s->wpa)) 2231 wpa_tdls_start(wpa_s->wpa, data->tdls.peer); 2232 else 2233 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer); 2234 break; 2235 case TDLS_REQUEST_TEARDOWN: 2236 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer, 2237 data->tdls.reason_code); 2238 break; 2239 } 2240} 2241#endif /* CONFIG_TDLS */ 2242 2243 2244#ifdef CONFIG_WNM 2245static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s, 2246 union wpa_event_data *data) 2247{ 2248 if (data == NULL) 2249 return; 2250 switch (data->wnm.oper) { 2251 case WNM_OPER_SLEEP: 2252 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request " 2253 "(action=%d, intval=%d)", 2254 data->wnm.sleep_action, data->wnm.sleep_intval); 2255 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action, 2256 data->wnm.sleep_intval, NULL); 2257 break; 2258 } 2259} 2260#endif /* CONFIG_WNM */ 2261 2262 2263#ifdef CONFIG_IEEE80211R 2264static void 2265wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s, 2266 union wpa_event_data *data) 2267{ 2268 if (data == NULL) 2269 return; 2270 2271 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies, 2272 data->ft_ies.ies_len, 2273 data->ft_ies.ft_action, 2274 data->ft_ies.target_ap, 2275 data->ft_ies.ric_ies, 2276 data->ft_ies.ric_ies_len) < 0) { 2277 /* TODO: prevent MLME/driver from trying to associate? */ 2278 } 2279} 2280#endif /* CONFIG_IEEE80211R */ 2281 2282 2283#ifdef CONFIG_IBSS_RSN 2284static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s, 2285 union wpa_event_data *data) 2286{ 2287 struct wpa_ssid *ssid; 2288 if (wpa_s->wpa_state < WPA_ASSOCIATED) 2289 return; 2290 if (data == NULL) 2291 return; 2292 ssid = wpa_s->current_ssid; 2293 if (ssid == NULL) 2294 return; 2295 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 2296 return; 2297 2298 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer); 2299} 2300#endif /* CONFIG_IBSS_RSN */ 2301 2302 2303#ifdef CONFIG_IEEE80211R 2304static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, 2305 size_t len) 2306{ 2307 const u8 *sta_addr, *target_ap_addr; 2308 u16 status; 2309 2310 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); 2311 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) 2312 return; /* only SME case supported for now */ 2313 if (len < 1 + 2 * ETH_ALEN + 2) 2314 return; 2315 if (data[0] != 2) 2316 return; /* Only FT Action Response is supported for now */ 2317 sta_addr = data + 1; 2318 target_ap_addr = data + 1 + ETH_ALEN; 2319 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); 2320 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " 2321 MACSTR " TargetAP " MACSTR " status %u", 2322 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); 2323 2324 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { 2325 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR 2326 " in FT Action Response", MAC2STR(sta_addr)); 2327 return; 2328 } 2329 2330 if (status) { 2331 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " 2332 "failure (status code %d)", status); 2333 /* TODO: report error to FT code(?) */ 2334 return; 2335 } 2336 2337 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, 2338 len - (1 + 2 * ETH_ALEN + 2), 1, 2339 target_ap_addr, NULL, 0) < 0) 2340 return; 2341 2342#ifdef CONFIG_SME 2343 { 2344 struct wpa_bss *bss; 2345 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); 2346 if (bss) 2347 wpa_s->sme.freq = bss->freq; 2348 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; 2349 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, 2350 WLAN_AUTH_FT); 2351 } 2352#endif /* CONFIG_SME */ 2353} 2354#endif /* CONFIG_IEEE80211R */ 2355 2356 2357static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, 2358 struct unprot_deauth *e) 2359{ 2360#ifdef CONFIG_IEEE80211W 2361 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " 2362 "dropped: " MACSTR " -> " MACSTR 2363 " (reason code %u)", 2364 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2365 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2366#endif /* CONFIG_IEEE80211W */ 2367} 2368 2369 2370static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, 2371 struct unprot_disassoc *e) 2372{ 2373#ifdef CONFIG_IEEE80211W 2374 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " 2375 "dropped: " MACSTR " -> " MACSTR 2376 " (reason code %u)", 2377 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2378 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2379#endif /* CONFIG_IEEE80211W */ 2380} 2381 2382 2383void wpa_supplicant_event(void *ctx, enum wpa_event_type event, 2384 union wpa_event_data *data) 2385{ 2386 struct wpa_supplicant *wpa_s = ctx; 2387 u16 reason_code = 0; 2388 int locally_generated = 0; 2389 2390 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && 2391 event != EVENT_INTERFACE_ENABLED && 2392 event != EVENT_INTERFACE_STATUS && 2393 event != EVENT_SCHED_SCAN_STOPPED) { 2394 wpa_dbg(wpa_s, MSG_DEBUG, 2395 "Ignore event %s (%d) while interface is disabled", 2396 event_to_string(event), event); 2397 return; 2398 } 2399 2400#ifndef CONFIG_NO_STDOUT_DEBUG 2401{ 2402 int level = MSG_DEBUG; 2403 2404 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) { 2405 const struct ieee80211_hdr *hdr; 2406 u16 fc; 2407 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame; 2408 fc = le_to_host16(hdr->frame_control); 2409 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 2410 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) 2411 level = MSG_EXCESSIVE; 2412 } 2413 2414 wpa_dbg(wpa_s, level, "Event %s (%d) received", 2415 event_to_string(event), event); 2416} 2417#endif /* CONFIG_NO_STDOUT_DEBUG */ 2418 2419 switch (event) { 2420 case EVENT_AUTH: 2421 sme_event_auth(wpa_s, data); 2422 break; 2423 case EVENT_ASSOC: 2424 wpa_supplicant_event_assoc(wpa_s, data); 2425 break; 2426 case EVENT_DISASSOC: 2427 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); 2428 if (data) { 2429 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 2430 data->disassoc_info.reason_code, 2431 data->disassoc_info.locally_generated ? 2432 " (locally generated)" : ""); 2433 if (data->disassoc_info.addr) 2434 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 2435 MAC2STR(data->disassoc_info.addr)); 2436 } 2437#ifdef CONFIG_AP 2438 if (wpa_s->ap_iface && data && data->disassoc_info.addr) { 2439 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], 2440 data->disassoc_info.addr); 2441 break; 2442 } 2443 if (wpa_s->ap_iface) { 2444 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in " 2445 "AP mode"); 2446 break; 2447 } 2448#endif /* CONFIG_AP */ 2449 if (data) { 2450 reason_code = data->disassoc_info.reason_code; 2451 locally_generated = 2452 data->disassoc_info.locally_generated; 2453 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", 2454 data->disassoc_info.ie, 2455 data->disassoc_info.ie_len); 2456#ifdef CONFIG_P2P 2457 wpas_p2p_disassoc_notif( 2458 wpa_s, data->disassoc_info.addr, reason_code, 2459 data->disassoc_info.ie, 2460 data->disassoc_info.ie_len, 2461 locally_generated); 2462#endif /* CONFIG_P2P */ 2463 } 2464 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2465 sme_event_disassoc(wpa_s, data); 2466 /* fall through */ 2467 case EVENT_DEAUTH: 2468 if (event == EVENT_DEAUTH) { 2469 wpa_dbg(wpa_s, MSG_DEBUG, 2470 "Deauthentication notification"); 2471 if (data) { 2472 reason_code = data->deauth_info.reason_code; 2473 locally_generated = 2474 data->deauth_info.locally_generated; 2475 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 2476 data->deauth_info.reason_code, 2477 data->deauth_info.locally_generated ? 2478 " (locally generated)" : ""); 2479 if (data->deauth_info.addr) { 2480 wpa_dbg(wpa_s, MSG_DEBUG, " * address " 2481 MACSTR, 2482 MAC2STR(data->deauth_info. 2483 addr)); 2484 } 2485 wpa_hexdump(MSG_DEBUG, 2486 "Deauthentication frame IE(s)", 2487 data->deauth_info.ie, 2488 data->deauth_info.ie_len); 2489 } 2490 } 2491#ifdef CONFIG_AP 2492 if (wpa_s->ap_iface && data && data->deauth_info.addr) { 2493 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], 2494 data->deauth_info.addr); 2495 break; 2496 } 2497 if (wpa_s->ap_iface) { 2498 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in " 2499 "AP mode"); 2500 break; 2501 } 2502#endif /* CONFIG_AP */ 2503 wpa_supplicant_event_disassoc(wpa_s, reason_code, 2504 locally_generated); 2505 if (reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED || 2506 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || 2507 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) && 2508 eapol_sm_failed(wpa_s->eapol))) 2509 wpas_auth_failed(wpa_s); 2510#ifdef CONFIG_P2P 2511 if (event == EVENT_DEAUTH && data) { 2512 if (wpas_p2p_deauth_notif(wpa_s, 2513 data->deauth_info.addr, 2514 reason_code, 2515 data->deauth_info.ie, 2516 data->deauth_info.ie_len, 2517 locally_generated) > 0) { 2518 /* 2519 * The interface was removed, so cannot 2520 * continue processing any additional 2521 * operations after this. 2522 */ 2523 break; 2524 } 2525 } 2526#endif /* CONFIG_P2P */ 2527 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code, 2528 locally_generated); 2529 break; 2530 case EVENT_MICHAEL_MIC_FAILURE: 2531 wpa_supplicant_event_michael_mic_failure(wpa_s, data); 2532 break; 2533#ifndef CONFIG_NO_SCAN_PROCESSING 2534 case EVENT_SCAN_RESULTS: 2535 wpa_supplicant_event_scan_results(wpa_s, data); 2536#ifdef CONFIG_P2P 2537 if (wpa_s->global->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled && 2538 wpa_s->global->p2p != NULL && 2539 wpa_s->wpa_state != WPA_AUTHENTICATING && 2540 wpa_s->wpa_state != WPA_ASSOCIATING) { 2541 wpa_s->global->p2p_cb_on_scan_complete = 0; 2542 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) { 2543 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation " 2544 "continued after scan result processing"); 2545 } 2546 } 2547#endif /* CONFIG_P2P */ 2548 break; 2549#endif /* CONFIG_NO_SCAN_PROCESSING */ 2550 case EVENT_ASSOCINFO: 2551 wpa_supplicant_event_associnfo(wpa_s, data); 2552 break; 2553 case EVENT_INTERFACE_STATUS: 2554 wpa_supplicant_event_interface_status(wpa_s, data); 2555 break; 2556 case EVENT_PMKID_CANDIDATE: 2557 wpa_supplicant_event_pmkid_candidate(wpa_s, data); 2558 break; 2559#ifdef CONFIG_PEERKEY 2560 case EVENT_STKSTART: 2561 wpa_supplicant_event_stkstart(wpa_s, data); 2562 break; 2563#endif /* CONFIG_PEERKEY */ 2564#ifdef CONFIG_TDLS 2565 case EVENT_TDLS: 2566 wpa_supplicant_event_tdls(wpa_s, data); 2567 break; 2568#endif /* CONFIG_TDLS */ 2569#ifdef CONFIG_WNM 2570 case EVENT_WNM: 2571 wpa_supplicant_event_wnm(wpa_s, data); 2572 break; 2573#endif /* CONFIG_WNM */ 2574#ifdef CONFIG_IEEE80211R 2575 case EVENT_FT_RESPONSE: 2576 wpa_supplicant_event_ft_response(wpa_s, data); 2577 break; 2578#endif /* CONFIG_IEEE80211R */ 2579#ifdef CONFIG_IBSS_RSN 2580 case EVENT_IBSS_RSN_START: 2581 wpa_supplicant_event_ibss_rsn_start(wpa_s, data); 2582 break; 2583#endif /* CONFIG_IBSS_RSN */ 2584 case EVENT_ASSOC_REJECT: 2585 if (data->assoc_reject.bssid) 2586 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 2587 "bssid=" MACSTR " status_code=%u", 2588 MAC2STR(data->assoc_reject.bssid), 2589 data->assoc_reject.status_code); 2590 else 2591 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 2592 "status_code=%u", 2593 data->assoc_reject.status_code); 2594 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2595 sme_event_assoc_reject(wpa_s, data); 2596 else { 2597#ifdef ANDROID_P2P 2598 if(!wpa_s->current_ssid) { 2599 wpa_printf(MSG_ERROR, "current_ssid == NULL"); 2600 break; 2601 } 2602 /* If assoc reject is reported by the driver, then avoid 2603 * waiting for the authentication timeout. Cancel the 2604 * authentication timeout and retry the assoc. 2605 */ 2606 if(wpa_s->current_ssid->assoc_retry++ < 10) { 2607 wpa_printf(MSG_ERROR, "Retrying assoc: %d ", 2608 wpa_s->current_ssid->assoc_retry); 2609 2610 wpa_supplicant_cancel_auth_timeout(wpa_s); 2611 2612 /* Clear the states */ 2613 wpa_sm_notify_disassoc(wpa_s->wpa); 2614 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2615 2616 wpa_s->reassociate = 1; 2617 if (wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE) { 2618 const u8 *bl_bssid = data->assoc_reject.bssid; 2619 if (!bl_bssid || is_zero_ether_addr(bl_bssid)) 2620 bl_bssid = wpa_s->pending_bssid; 2621 wpa_blacklist_add(wpa_s, bl_bssid); 2622 wpa_supplicant_req_scan(wpa_s, 0, 0); 2623 } else { 2624 wpa_supplicant_req_scan(wpa_s, 1, 0); 2625 } 2626 } else if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) { 2627 /* If we ASSOC_REJECT's hits threshold, disable the 2628 * network 2629 */ 2630 wpa_printf(MSG_ERROR, "Assoc retry threshold reached. " 2631 "Disabling the network"); 2632 wpa_s->current_ssid->assoc_retry = 0; 2633 wpa_supplicant_disable_network(wpa_s, wpa_s->current_ssid); 2634 wpas_p2p_group_remove(wpa_s, wpa_s->ifname); 2635 } 2636#else 2637 const u8 *bssid = data->assoc_reject.bssid; 2638 if (bssid == NULL || is_zero_ether_addr(bssid)) 2639 bssid = wpa_s->pending_bssid; 2640 wpas_connection_failed(wpa_s, bssid); 2641 wpa_supplicant_mark_disassoc(wpa_s); 2642#endif /* ANDROID_P2P */ 2643 } 2644 break; 2645 case EVENT_AUTH_TIMED_OUT: 2646 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2647 sme_event_auth_timed_out(wpa_s, data); 2648 break; 2649 case EVENT_ASSOC_TIMED_OUT: 2650 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2651 sme_event_assoc_timed_out(wpa_s, data); 2652 break; 2653 case EVENT_TX_STATUS: 2654 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR 2655 " type=%d stype=%d", 2656 MAC2STR(data->tx_status.dst), 2657 data->tx_status.type, data->tx_status.stype); 2658#ifdef CONFIG_AP 2659 if (wpa_s->ap_iface == NULL) { 2660#ifdef CONFIG_OFFCHANNEL 2661 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 2662 data->tx_status.stype == WLAN_FC_STYPE_ACTION) 2663 offchannel_send_action_tx_status( 2664 wpa_s, data->tx_status.dst, 2665 data->tx_status.data, 2666 data->tx_status.data_len, 2667 data->tx_status.ack ? 2668 OFFCHANNEL_SEND_ACTION_SUCCESS : 2669 OFFCHANNEL_SEND_ACTION_NO_ACK); 2670#endif /* CONFIG_OFFCHANNEL */ 2671 break; 2672 } 2673#endif /* CONFIG_AP */ 2674#ifdef CONFIG_OFFCHANNEL 2675 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" 2676 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst)); 2677 /* 2678 * Catch TX status events for Action frames we sent via group 2679 * interface in GO mode. 2680 */ 2681 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 2682 data->tx_status.stype == WLAN_FC_STYPE_ACTION && 2683 os_memcmp(wpa_s->parent->pending_action_dst, 2684 data->tx_status.dst, ETH_ALEN) == 0) { 2685 offchannel_send_action_tx_status( 2686 wpa_s->parent, data->tx_status.dst, 2687 data->tx_status.data, 2688 data->tx_status.data_len, 2689 data->tx_status.ack ? 2690 OFFCHANNEL_SEND_ACTION_SUCCESS : 2691 OFFCHANNEL_SEND_ACTION_NO_ACK); 2692 break; 2693 } 2694#endif /* CONFIG_OFFCHANNEL */ 2695#ifdef CONFIG_AP 2696 switch (data->tx_status.type) { 2697 case WLAN_FC_TYPE_MGMT: 2698 ap_mgmt_tx_cb(wpa_s, data->tx_status.data, 2699 data->tx_status.data_len, 2700 data->tx_status.stype, 2701 data->tx_status.ack); 2702 break; 2703 case WLAN_FC_TYPE_DATA: 2704 ap_tx_status(wpa_s, data->tx_status.dst, 2705 data->tx_status.data, 2706 data->tx_status.data_len, 2707 data->tx_status.ack); 2708 break; 2709 } 2710#endif /* CONFIG_AP */ 2711 break; 2712#ifdef CONFIG_AP 2713 case EVENT_EAPOL_TX_STATUS: 2714 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst, 2715 data->eapol_tx_status.data, 2716 data->eapol_tx_status.data_len, 2717 data->eapol_tx_status.ack); 2718 break; 2719 case EVENT_DRIVER_CLIENT_POLL_OK: 2720 ap_client_poll_ok(wpa_s, data->client_poll.addr); 2721 break; 2722 case EVENT_RX_FROM_UNKNOWN: 2723 if (wpa_s->ap_iface == NULL) 2724 break; 2725 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr, 2726 data->rx_from_unknown.wds); 2727 break; 2728 case EVENT_CH_SWITCH: 2729 if (!data) 2730 break; 2731 if (!wpa_s->ap_iface) { 2732 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch " 2733 "event in non-AP mode"); 2734 break; 2735 } 2736 2737#ifdef CONFIG_AP 2738 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq, 2739 data->ch_switch.ht_enabled, 2740 data->ch_switch.ch_offset); 2741#endif /* CONFIG_AP */ 2742 break; 2743 case EVENT_RX_MGMT: { 2744 u16 fc, stype; 2745 const struct ieee80211_mgmt *mgmt; 2746 2747 mgmt = (const struct ieee80211_mgmt *) 2748 data->rx_mgmt.frame; 2749 fc = le_to_host16(mgmt->frame_control); 2750 stype = WLAN_FC_GET_STYPE(fc); 2751 2752 if (wpa_s->ap_iface == NULL) { 2753#ifdef CONFIG_P2P 2754 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2755 data->rx_mgmt.frame_len > 24) { 2756 const u8 *src = mgmt->sa; 2757 const u8 *ie = mgmt->u.probe_req.variable; 2758 size_t ie_len = data->rx_mgmt.frame_len - 2759 (mgmt->u.probe_req.variable - 2760 data->rx_mgmt.frame); 2761 wpas_p2p_probe_req_rx( 2762 wpa_s, src, mgmt->da, 2763 mgmt->bssid, ie, ie_len, 2764 data->rx_mgmt.ssi_signal); 2765 break; 2766 } 2767#endif /* CONFIG_P2P */ 2768 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " 2769 "management frame in non-AP mode"); 2770 break; 2771 } 2772 2773 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2774 data->rx_mgmt.frame_len > 24) { 2775 const u8 *ie = mgmt->u.probe_req.variable; 2776 size_t ie_len = data->rx_mgmt.frame_len - 2777 (mgmt->u.probe_req.variable - 2778 data->rx_mgmt.frame); 2779 2780 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da, 2781 mgmt->bssid, ie, ie_len, 2782 data->rx_mgmt.ssi_signal); 2783 } 2784 2785 ap_mgmt_rx(wpa_s, &data->rx_mgmt); 2786 break; 2787 } 2788#endif /* CONFIG_AP */ 2789 case EVENT_RX_ACTION: 2790 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR 2791 " Category=%u DataLen=%d freq=%d MHz", 2792 MAC2STR(data->rx_action.sa), 2793 data->rx_action.category, (int) data->rx_action.len, 2794 data->rx_action.freq); 2795#ifdef CONFIG_IEEE80211R 2796 if (data->rx_action.category == WLAN_ACTION_FT) { 2797 ft_rx_action(wpa_s, data->rx_action.data, 2798 data->rx_action.len); 2799 break; 2800 } 2801#endif /* CONFIG_IEEE80211R */ 2802#ifdef CONFIG_IEEE80211W 2803#ifdef CONFIG_SME 2804 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) { 2805 sme_sa_query_rx(wpa_s, data->rx_action.sa, 2806 data->rx_action.data, 2807 data->rx_action.len); 2808 break; 2809 } 2810#endif /* CONFIG_SME */ 2811#endif /* CONFIG_IEEE80211W */ 2812#ifdef CONFIG_WNM 2813 if (data->rx_action.category == WLAN_ACTION_WNM) { 2814 ieee802_11_rx_wnm_action(wpa_s, &data->rx_action); 2815 break; 2816 } 2817#endif /* CONFIG_WNM */ 2818#ifdef CONFIG_GAS 2819 if (data->rx_action.category == WLAN_ACTION_PUBLIC && 2820 gas_query_rx(wpa_s->gas, data->rx_action.da, 2821 data->rx_action.sa, data->rx_action.bssid, 2822 data->rx_action.data, data->rx_action.len, 2823 data->rx_action.freq) == 0) 2824 break; 2825#endif /* CONFIG_GAS */ 2826#ifdef CONFIG_TDLS 2827 if (data->rx_action.category == WLAN_ACTION_PUBLIC && 2828 data->rx_action.len >= 4 && 2829 data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) { 2830 wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery " 2831 "Response from " MACSTR, 2832 MAC2STR(data->rx_action.sa)); 2833 break; 2834 } 2835#endif /* CONFIG_TDLS */ 2836#ifdef CONFIG_P2P 2837 wpas_p2p_rx_action(wpa_s, data->rx_action.da, 2838 data->rx_action.sa, 2839 data->rx_action.bssid, 2840 data->rx_action.category, 2841 data->rx_action.data, 2842 data->rx_action.len, data->rx_action.freq); 2843#endif /* CONFIG_P2P */ 2844 break; 2845 case EVENT_RX_PROBE_REQ: 2846 if (data->rx_probe_req.sa == NULL || 2847 data->rx_probe_req.ie == NULL) 2848 break; 2849#ifdef CONFIG_AP 2850 if (wpa_s->ap_iface) { 2851 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], 2852 data->rx_probe_req.sa, 2853 data->rx_probe_req.da, 2854 data->rx_probe_req.bssid, 2855 data->rx_probe_req.ie, 2856 data->rx_probe_req.ie_len, 2857 data->rx_probe_req.ssi_signal); 2858 break; 2859 } 2860#endif /* CONFIG_AP */ 2861#ifdef CONFIG_P2P 2862 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa, 2863 data->rx_probe_req.da, 2864 data->rx_probe_req.bssid, 2865 data->rx_probe_req.ie, 2866 data->rx_probe_req.ie_len, 2867 data->rx_probe_req.ssi_signal); 2868#endif /* CONFIG_P2P */ 2869 break; 2870 case EVENT_REMAIN_ON_CHANNEL: 2871#ifdef CONFIG_OFFCHANNEL 2872 offchannel_remain_on_channel_cb( 2873 wpa_s, data->remain_on_channel.freq, 2874 data->remain_on_channel.duration); 2875#endif /* CONFIG_OFFCHANNEL */ 2876#ifdef CONFIG_P2P 2877 wpas_p2p_remain_on_channel_cb( 2878 wpa_s, data->remain_on_channel.freq, 2879 data->remain_on_channel.duration); 2880#endif /* CONFIG_P2P */ 2881 break; 2882 case EVENT_CANCEL_REMAIN_ON_CHANNEL: 2883#ifdef CONFIG_OFFCHANNEL 2884 offchannel_cancel_remain_on_channel_cb( 2885 wpa_s, data->remain_on_channel.freq); 2886#endif /* CONFIG_OFFCHANNEL */ 2887#ifdef CONFIG_P2P 2888 wpas_p2p_cancel_remain_on_channel_cb( 2889 wpa_s, data->remain_on_channel.freq); 2890#endif /* CONFIG_P2P */ 2891 break; 2892#ifdef CONFIG_P2P 2893 case EVENT_P2P_DEV_FOUND: { 2894 struct p2p_peer_info peer_info; 2895 2896 os_memset(&peer_info, 0, sizeof(peer_info)); 2897 if (data->p2p_dev_found.dev_addr) 2898 os_memcpy(peer_info.p2p_device_addr, 2899 data->p2p_dev_found.dev_addr, ETH_ALEN); 2900 if (data->p2p_dev_found.pri_dev_type) 2901 os_memcpy(peer_info.pri_dev_type, 2902 data->p2p_dev_found.pri_dev_type, 2903 sizeof(peer_info.pri_dev_type)); 2904 if (data->p2p_dev_found.dev_name) 2905 os_strlcpy(peer_info.device_name, 2906 data->p2p_dev_found.dev_name, 2907 sizeof(peer_info.device_name)); 2908 peer_info.config_methods = data->p2p_dev_found.config_methods; 2909 peer_info.dev_capab = data->p2p_dev_found.dev_capab; 2910 peer_info.group_capab = data->p2p_dev_found.group_capab; 2911 2912 /* 2913 * FIX: new_device=1 is not necessarily correct. We should 2914 * maintain a P2P peer database in wpa_supplicant and update 2915 * this information based on whether the peer is truly new. 2916 */ 2917 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1); 2918 break; 2919 } 2920 case EVENT_P2P_GO_NEG_REQ_RX: 2921 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src, 2922 data->p2p_go_neg_req_rx.dev_passwd_id); 2923 break; 2924 case EVENT_P2P_GO_NEG_COMPLETED: 2925 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res); 2926 break; 2927 case EVENT_P2P_PROV_DISC_REQUEST: 2928 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer, 2929 data->p2p_prov_disc_req.config_methods, 2930 data->p2p_prov_disc_req.dev_addr, 2931 data->p2p_prov_disc_req.pri_dev_type, 2932 data->p2p_prov_disc_req.dev_name, 2933 data->p2p_prov_disc_req.supp_config_methods, 2934 data->p2p_prov_disc_req.dev_capab, 2935 data->p2p_prov_disc_req.group_capab, 2936 NULL, 0); 2937 break; 2938 case EVENT_P2P_PROV_DISC_RESPONSE: 2939 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer, 2940 data->p2p_prov_disc_resp.config_methods); 2941 break; 2942 case EVENT_P2P_SD_REQUEST: 2943 wpas_sd_request(wpa_s, data->p2p_sd_req.freq, 2944 data->p2p_sd_req.sa, 2945 data->p2p_sd_req.dialog_token, 2946 data->p2p_sd_req.update_indic, 2947 data->p2p_sd_req.tlvs, 2948 data->p2p_sd_req.tlvs_len); 2949 break; 2950 case EVENT_P2P_SD_RESPONSE: 2951 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa, 2952 data->p2p_sd_resp.update_indic, 2953 data->p2p_sd_resp.tlvs, 2954 data->p2p_sd_resp.tlvs_len); 2955 break; 2956#endif /* CONFIG_P2P */ 2957 case EVENT_EAPOL_RX: 2958 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, 2959 data->eapol_rx.data, 2960 data->eapol_rx.data_len); 2961 break; 2962 case EVENT_SIGNAL_CHANGE: 2963 bgscan_notify_signal_change( 2964 wpa_s, data->signal_change.above_threshold, 2965 data->signal_change.current_signal, 2966 data->signal_change.current_noise, 2967 data->signal_change.current_txrate); 2968 break; 2969 case EVENT_INTERFACE_ENABLED: 2970 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); 2971 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 2972 wpa_supplicant_update_mac_addr(wpa_s); 2973#ifdef CONFIG_AP 2974 if (!wpa_s->ap_iface) { 2975 wpa_supplicant_set_state(wpa_s, 2976 WPA_DISCONNECTED); 2977 wpa_supplicant_req_scan(wpa_s, 0, 0); 2978 } else 2979 wpa_supplicant_set_state(wpa_s, 2980 WPA_COMPLETED); 2981#else /* CONFIG_AP */ 2982 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 2983 wpa_supplicant_req_scan(wpa_s, 0, 0); 2984#endif /* CONFIG_AP */ 2985 } 2986 break; 2987 case EVENT_INTERFACE_DISABLED: 2988 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); 2989 wpa_supplicant_mark_disassoc(wpa_s); 2990 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2991 break; 2992 case EVENT_CHANNEL_LIST_CHANGED: 2993 if (wpa_s->drv_priv == NULL) 2994 break; /* Ignore event during drv initialization */ 2995 2996 free_hw_features(wpa_s); 2997 wpa_s->hw.modes = wpa_drv_get_hw_feature_data( 2998 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags); 2999 3000#ifdef CONFIG_P2P 3001 wpas_p2p_update_channel_list(wpa_s); 3002#endif /* CONFIG_P2P */ 3003 break; 3004 case EVENT_INTERFACE_UNAVAILABLE: 3005#ifdef CONFIG_P2P 3006 wpas_p2p_interface_unavailable(wpa_s); 3007#endif /* CONFIG_P2P */ 3008 break; 3009 case EVENT_BEST_CHANNEL: 3010 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " 3011 "(%d %d %d)", 3012 data->best_chan.freq_24, data->best_chan.freq_5, 3013 data->best_chan.freq_overall); 3014 wpa_s->best_24_freq = data->best_chan.freq_24; 3015 wpa_s->best_5_freq = data->best_chan.freq_5; 3016 wpa_s->best_overall_freq = data->best_chan.freq_overall; 3017#ifdef CONFIG_P2P 3018 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, 3019 data->best_chan.freq_5, 3020 data->best_chan.freq_overall); 3021#endif /* CONFIG_P2P */ 3022 break; 3023 case EVENT_UNPROT_DEAUTH: 3024 wpa_supplicant_event_unprot_deauth(wpa_s, 3025 &data->unprot_deauth); 3026 break; 3027 case EVENT_UNPROT_DISASSOC: 3028 wpa_supplicant_event_unprot_disassoc(wpa_s, 3029 &data->unprot_disassoc); 3030 break; 3031 case EVENT_STATION_LOW_ACK: 3032#ifdef CONFIG_AP 3033 if (wpa_s->ap_iface && data) 3034 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], 3035 data->low_ack.addr); 3036#endif /* CONFIG_AP */ 3037#ifdef CONFIG_TDLS 3038 if (data) 3039 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr); 3040#endif /* CONFIG_TDLS */ 3041 break; 3042 case EVENT_IBSS_PEER_LOST: 3043#ifdef CONFIG_IBSS_RSN 3044 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer); 3045#endif /* CONFIG_IBSS_RSN */ 3046 break; 3047 case EVENT_DRIVER_GTK_REKEY: 3048 if (os_memcmp(data->driver_gtk_rekey.bssid, 3049 wpa_s->bssid, ETH_ALEN)) 3050 break; 3051 if (!wpa_s->wpa) 3052 break; 3053 wpa_sm_update_replay_ctr(wpa_s->wpa, 3054 data->driver_gtk_rekey.replay_ctr); 3055 break; 3056 case EVENT_SCHED_SCAN_STOPPED: 3057 wpa_s->sched_scanning = 0; 3058 wpa_supplicant_notify_scanning(wpa_s, 0); 3059 3060 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 3061 break; 3062 3063 /* 3064 * If we timed out, start a new sched scan to continue 3065 * searching for more SSIDs. 3066 */ 3067 if (wpa_s->sched_scan_timed_out) 3068 wpa_supplicant_req_sched_scan(wpa_s); 3069 break; 3070 case EVENT_WPS_BUTTON_PUSHED: 3071#ifdef CONFIG_WPS 3072 wpas_wps_start_pbc(wpa_s, NULL, 0); 3073#endif /* CONFIG_WPS */ 3074 break; 3075 case EVENT_CONNECT_FAILED_REASON: 3076#ifdef CONFIG_AP 3077 if (!wpa_s->ap_iface || !data) 3078 break; 3079 hostapd_event_connect_failed_reason( 3080 wpa_s->ap_iface->bss[0], 3081 data->connect_failed_reason.addr, 3082 data->connect_failed_reason.code); 3083#endif /* CONFIG_AP */ 3084 break; 3085 default: 3086 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); 3087 break; 3088 } 3089} 3090