events.c revision 700a137ab366edc72e371da68ba187b4717ee660
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#ifdef CONFIG_IEEE80211R 1481 u8 bssid[ETH_ALEN]; 1482#endif /* CONFIG_IEEE80211R */ 1483 1484 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); 1485 if (data->assoc_info.req_ies) 1486 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, 1487 data->assoc_info.req_ies_len); 1488 if (data->assoc_info.resp_ies) { 1489 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, 1490 data->assoc_info.resp_ies_len); 1491#ifdef CONFIG_TDLS 1492 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies, 1493 data->assoc_info.resp_ies_len); 1494#endif /* CONFIG_TDLS */ 1495#ifdef CONFIG_WNM 1496 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 1497 data->assoc_info.resp_ies_len); 1498#endif /* CONFIG_WNM */ 1499 } 1500 if (data->assoc_info.beacon_ies) 1501 wpa_hexdump(MSG_DEBUG, "beacon_ies", 1502 data->assoc_info.beacon_ies, 1503 data->assoc_info.beacon_ies_len); 1504 if (data->assoc_info.freq) 1505 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", 1506 data->assoc_info.freq); 1507 1508 p = data->assoc_info.req_ies; 1509 l = data->assoc_info.req_ies_len; 1510 1511 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ 1512 while (p && l >= 2) { 1513 len = p[1] + 2; 1514 if (len > l) { 1515 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1516 p, l); 1517 break; 1518 } 1519 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1520 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || 1521 (p[0] == WLAN_EID_RSN && p[1] >= 2)) { 1522 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) 1523 break; 1524 found = 1; 1525 wpa_find_assoc_pmkid(wpa_s); 1526 break; 1527 } 1528 l -= len; 1529 p += len; 1530 } 1531 if (!found && data->assoc_info.req_ies) 1532 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); 1533 1534#ifdef CONFIG_IEEE80211R 1535#ifdef CONFIG_SME 1536 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { 1537 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 1538 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 1539 data->assoc_info.resp_ies, 1540 data->assoc_info.resp_ies_len, 1541 bssid) < 0) { 1542 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 1543 "Reassociation Response failed"); 1544 wpa_supplicant_deauthenticate( 1545 wpa_s, WLAN_REASON_INVALID_IE); 1546 return -1; 1547 } 1548 } 1549 1550 p = data->assoc_info.resp_ies; 1551 l = data->assoc_info.resp_ies_len; 1552 1553#ifdef CONFIG_WPS_STRICT 1554 if (p && wpa_s->current_ssid && 1555 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { 1556 struct wpabuf *wps; 1557 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); 1558 if (wps == NULL) { 1559 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " 1560 "include WPS IE in (Re)Association Response"); 1561 return -1; 1562 } 1563 1564 if (wps_validate_assoc_resp(wps) < 0) { 1565 wpabuf_free(wps); 1566 wpa_supplicant_deauthenticate( 1567 wpa_s, WLAN_REASON_INVALID_IE); 1568 return -1; 1569 } 1570 wpabuf_free(wps); 1571 } 1572#endif /* CONFIG_WPS_STRICT */ 1573 1574 /* Go through the IEs and make a copy of the MDIE, if present. */ 1575 while (p && l >= 2) { 1576 len = p[1] + 2; 1577 if (len > l) { 1578 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1579 p, l); 1580 break; 1581 } 1582 if (p[0] == WLAN_EID_MOBILITY_DOMAIN && 1583 p[1] >= MOBILITY_DOMAIN_ID_LEN) { 1584 wpa_s->sme.ft_used = 1; 1585 os_memcpy(wpa_s->sme.mobility_domain, p + 2, 1586 MOBILITY_DOMAIN_ID_LEN); 1587 break; 1588 } 1589 l -= len; 1590 p += len; 1591 } 1592#endif /* CONFIG_SME */ 1593 1594 /* Process FT when SME is in the driver */ 1595 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 1596 wpa_ft_is_completed(wpa_s->wpa)) { 1597 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 1598 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 1599 data->assoc_info.resp_ies, 1600 data->assoc_info.resp_ies_len, 1601 bssid) < 0) { 1602 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 1603 "Reassociation Response failed"); 1604 wpa_supplicant_deauthenticate( 1605 wpa_s, WLAN_REASON_INVALID_IE); 1606 return -1; 1607 } 1608 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done"); 1609 } 1610 1611 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, 1612 data->assoc_info.resp_ies_len); 1613#endif /* CONFIG_IEEE80211R */ 1614 1615 /* WPA/RSN IE from Beacon/ProbeResp */ 1616 p = data->assoc_info.beacon_ies; 1617 l = data->assoc_info.beacon_ies_len; 1618 1619 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. 1620 */ 1621 wpa_found = rsn_found = 0; 1622 while (p && l >= 2) { 1623 len = p[1] + 2; 1624 if (len > l) { 1625 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", 1626 p, l); 1627 break; 1628 } 1629 if (!wpa_found && 1630 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1631 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { 1632 wpa_found = 1; 1633 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); 1634 } 1635 1636 if (!rsn_found && 1637 p[0] == WLAN_EID_RSN && p[1] >= 2) { 1638 rsn_found = 1; 1639 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); 1640 } 1641 1642 l -= len; 1643 p += len; 1644 } 1645 1646 if (!wpa_found && data->assoc_info.beacon_ies) 1647 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); 1648 if (!rsn_found && data->assoc_info.beacon_ies) 1649 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); 1650 if (wpa_found || rsn_found) 1651 wpa_s->ap_ies_from_associnfo = 1; 1652 1653 if (wpa_s->assoc_freq && data->assoc_info.freq && 1654 wpa_s->assoc_freq != data->assoc_info.freq) { 1655 wpa_printf(MSG_DEBUG, "Operating frequency changed from " 1656 "%u to %u MHz", 1657 wpa_s->assoc_freq, data->assoc_info.freq); 1658 wpa_supplicant_update_scan_results(wpa_s); 1659 } 1660 1661 wpa_s->assoc_freq = data->assoc_info.freq; 1662 1663 return 0; 1664} 1665 1666 1667static struct wpa_bss * wpa_supplicant_get_new_bss( 1668 struct wpa_supplicant *wpa_s, const u8 *bssid) 1669{ 1670 struct wpa_bss *bss = NULL; 1671 struct wpa_ssid *ssid = wpa_s->current_ssid; 1672 1673 if (ssid->ssid_len > 0) 1674 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len); 1675 if (!bss) 1676 bss = wpa_bss_get_bssid(wpa_s, bssid); 1677 1678 return bss; 1679} 1680 1681 1682static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s) 1683{ 1684 const u8 *bss_wpa = NULL, *bss_rsn = NULL; 1685 1686 if (!wpa_s->current_bss || !wpa_s->current_ssid) 1687 return -1; 1688 1689 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt)) 1690 return 0; 1691 1692 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss, 1693 WPA_IE_VENDOR_TYPE); 1694 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN); 1695 1696 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, 1697 bss_wpa ? 2 + bss_wpa[1] : 0) || 1698 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, 1699 bss_rsn ? 2 + bss_rsn[1] : 0)) 1700 return -1; 1701 1702 return 0; 1703} 1704 1705 1706static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, 1707 union wpa_event_data *data) 1708{ 1709 u8 bssid[ETH_ALEN]; 1710 int ft_completed; 1711 struct wpa_driver_capa capa; 1712 1713#ifdef CONFIG_AP 1714 if (wpa_s->ap_iface) { 1715 hostapd_notif_assoc(wpa_s->ap_iface->bss[0], 1716 data->assoc_info.addr, 1717 data->assoc_info.req_ies, 1718 data->assoc_info.req_ies_len, 1719 data->assoc_info.reassoc); 1720 return; 1721 } 1722#endif /* CONFIG_AP */ 1723 1724 ft_completed = wpa_ft_is_completed(wpa_s->wpa); 1725 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) 1726 return; 1727 1728 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { 1729 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID"); 1730 wpa_supplicant_deauthenticate( 1731 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1732 return; 1733 } 1734 1735 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); 1736 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) { 1737 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" 1738 MACSTR, MAC2STR(bssid)); 1739 random_add_randomness(bssid, ETH_ALEN); 1740 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); 1741 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 1742 wpas_notify_bssid_changed(wpa_s); 1743 1744 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { 1745 wpa_clear_keys(wpa_s, bssid); 1746 } 1747 if (wpa_supplicant_select_config(wpa_s) < 0) { 1748 wpa_supplicant_deauthenticate( 1749 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1750 return; 1751 } 1752 if (wpa_s->current_ssid) { 1753 struct wpa_bss *bss = NULL; 1754 1755 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 1756 if (!bss) { 1757 wpa_supplicant_update_scan_results(wpa_s); 1758 1759 /* Get the BSS from the new scan results */ 1760 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 1761 } 1762 1763 if (bss) 1764 wpa_s->current_bss = bss; 1765 } 1766 1767#ifdef ANDROID 1768 if (wpa_s->conf->ap_scan == 1) { 1769#else 1770 if (wpa_s->conf->ap_scan == 1 && 1771 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) { 1772#endif 1773 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0) 1774 wpa_msg(wpa_s, MSG_WARNING, 1775 "WPA/RSN IEs not updated"); 1776 } 1777 } 1778 1779#ifdef CONFIG_SME 1780 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); 1781 wpa_s->sme.prev_bssid_set = 1; 1782#endif /* CONFIG_SME */ 1783 1784 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); 1785 if (wpa_s->current_ssid) { 1786 /* When using scanning (ap_scan=1), SIM PC/SC interface can be 1787 * initialized before association, but for other modes, 1788 * initialize PC/SC here, if the current configuration needs 1789 * smartcard or SIM/USIM. */ 1790 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); 1791 } 1792 wpa_sm_notify_assoc(wpa_s->wpa, bssid); 1793 if (wpa_s->l2) 1794 l2_packet_notify_auth_start(wpa_s->l2); 1795 1796 /* 1797 * Set portEnabled first to FALSE in order to get EAP state machine out 1798 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE 1799 * state machine may transit to AUTHENTICATING state based on obsolete 1800 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to 1801 * AUTHENTICATED without ever giving chance to EAP state machine to 1802 * reset the state. 1803 */ 1804 if (!ft_completed) { 1805 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 1806 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 1807 } 1808 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed) 1809 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 1810 /* 802.1X::portControl = Auto */ 1811 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); 1812 wpa_s->eapol_received = 0; 1813 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1814 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || 1815 (wpa_s->current_ssid && 1816 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { 1817 wpa_supplicant_cancel_auth_timeout(wpa_s); 1818 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1819 } else if (!ft_completed) { 1820 /* Timeout for receiving the first EAPOL packet */ 1821 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); 1822 } 1823 wpa_supplicant_cancel_scan(wpa_s); 1824 1825 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1826 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { 1827 /* 1828 * We are done; the driver will take care of RSN 4-way 1829 * handshake. 1830 */ 1831 wpa_supplicant_cancel_auth_timeout(wpa_s); 1832 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1833 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1834 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1835 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1836 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { 1837 /* 1838 * The driver will take care of RSN 4-way handshake, so we need 1839 * to allow EAPOL supplicant to complete its work without 1840 * waiting for WPA supplicant. 1841 */ 1842 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1843 } else if (ft_completed) { 1844 /* 1845 * FT protocol completed - make sure EAPOL state machine ends 1846 * up in authenticated. 1847 */ 1848 wpa_supplicant_cancel_auth_timeout(wpa_s); 1849 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1850 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1851 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1852 } 1853 1854 wpa_s->last_eapol_matches_bssid = 0; 1855 1856 if (wpa_s->pending_eapol_rx) { 1857 struct os_time now, age; 1858 os_get_time(&now); 1859 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age); 1860 if (age.sec == 0 && age.usec < 100000 && 1861 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == 1862 0) { 1863 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " 1864 "frame that was received just before " 1865 "association notification"); 1866 wpa_supplicant_rx_eapol( 1867 wpa_s, wpa_s->pending_eapol_rx_src, 1868 wpabuf_head(wpa_s->pending_eapol_rx), 1869 wpabuf_len(wpa_s->pending_eapol_rx)); 1870 } 1871 wpabuf_free(wpa_s->pending_eapol_rx); 1872 wpa_s->pending_eapol_rx = NULL; 1873 } 1874 1875 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1876 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 1877 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 && 1878 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) { 1879 /* Set static WEP keys again */ 1880 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); 1881 } 1882 1883#ifdef CONFIG_IBSS_RSN 1884 if (wpa_s->current_ssid && 1885 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 1886 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && 1887 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE && 1888 wpa_s->ibss_rsn == NULL) { 1889 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s); 1890 if (!wpa_s->ibss_rsn) { 1891 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN"); 1892 wpa_supplicant_deauthenticate( 1893 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1894 return; 1895 } 1896 1897 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk); 1898 } 1899#endif /* CONFIG_IBSS_RSN */ 1900 1901 wpas_wps_notify_assoc(wpa_s, bssid); 1902} 1903 1904 1905static int disconnect_reason_recoverable(u16 reason_code) 1906{ 1907 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY || 1908 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA || 1909 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA; 1910} 1911 1912 1913static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s, 1914 u16 reason_code, 1915 int locally_generated) 1916{ 1917 const u8 *bssid; 1918 1919 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 1920 /* 1921 * At least Host AP driver and a Prism3 card seemed to be 1922 * generating streams of disconnected events when configuring 1923 * IBSS for WPA-None. Ignore them for now. 1924 */ 1925 return; 1926 } 1927 1928 bssid = wpa_s->bssid; 1929 if (is_zero_ether_addr(bssid)) 1930 bssid = wpa_s->pending_bssid; 1931 1932 if (!is_zero_ether_addr(bssid) || 1933 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 1934 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR 1935 " reason=%d%s", 1936 MAC2STR(bssid), reason_code, 1937 locally_generated ? " locally_generated=1" : ""); 1938 } 1939} 1940 1941 1942static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code, 1943 int locally_generated) 1944{ 1945 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE || 1946 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 1947 return 0; /* Not in 4-way handshake with PSK */ 1948 1949 /* 1950 * It looks like connection was lost while trying to go through PSK 1951 * 4-way handshake. Filter out known disconnection cases that are caused 1952 * by something else than PSK mismatch to avoid confusing reports. 1953 */ 1954 1955 if (locally_generated) { 1956 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS) 1957 return 0; 1958 } 1959 1960 return 1; 1961} 1962 1963 1964static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s, 1965 u16 reason_code, 1966 int locally_generated) 1967{ 1968 const u8 *bssid; 1969 int authenticating; 1970 u8 prev_pending_bssid[ETH_ALEN]; 1971 struct wpa_bss *fast_reconnect = NULL; 1972 struct wpa_ssid *fast_reconnect_ssid = NULL; 1973 struct wpa_ssid *last_ssid; 1974 1975 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING; 1976 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN); 1977 1978 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 1979 /* 1980 * At least Host AP driver and a Prism3 card seemed to be 1981 * generating streams of disconnected events when configuring 1982 * IBSS for WPA-None. Ignore them for now. 1983 */ 1984 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in " 1985 "IBSS/WPA-None mode"); 1986 return; 1987 } 1988 1989 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) { 1990 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - " 1991 "pre-shared key may be incorrect"); 1992 wpas_auth_failed(wpa_s); 1993 } 1994 if (!wpa_s->auto_reconnect_disabled || 1995 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) { 1996 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to " 1997 "reconnect (wps=%d wpa_state=%d)", 1998 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS, 1999 wpa_s->wpa_state); 2000 if (wpa_s->wpa_state == WPA_COMPLETED && 2001 wpa_s->current_ssid && 2002 wpa_s->current_ssid->mode == WPAS_MODE_INFRA && 2003 !locally_generated && 2004 disconnect_reason_recoverable(reason_code)) { 2005 /* 2006 * It looks like the AP has dropped association with 2007 * us, but could allow us to get back in. Try to 2008 * reconnect to the same BSS without full scan to save 2009 * time for some common cases. 2010 */ 2011 fast_reconnect = wpa_s->current_bss; 2012 fast_reconnect_ssid = wpa_s->current_ssid; 2013 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) 2014#ifdef ANDROID 2015 wpa_supplicant_req_scan(wpa_s, 0, 500000); 2016#else 2017 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2018#endif 2019 else 2020 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new " 2021 "immediate scan"); 2022 } else { 2023 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not " 2024 "try to re-connect"); 2025 wpa_s->reassociate = 0; 2026 wpa_s->disconnected = 1; 2027 wpa_supplicant_cancel_sched_scan(wpa_s); 2028 } 2029 bssid = wpa_s->bssid; 2030 if (is_zero_ether_addr(bssid)) 2031 bssid = wpa_s->pending_bssid; 2032 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 2033 wpas_connection_failed(wpa_s, bssid); 2034 wpa_sm_notify_disassoc(wpa_s->wpa); 2035 if (locally_generated) 2036 wpa_s->disconnect_reason = -reason_code; 2037 else 2038 wpa_s->disconnect_reason = reason_code; 2039 wpas_notify_disconnect_reason(wpa_s); 2040 if (wpa_supplicant_dynamic_keys(wpa_s)) { 2041 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys"); 2042 wpa_s->keys_cleared = 0; 2043 wpa_clear_keys(wpa_s, wpa_s->bssid); 2044 } 2045 last_ssid = wpa_s->current_ssid; 2046 wpa_supplicant_mark_disassoc(wpa_s); 2047 2048 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) { 2049 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); 2050 wpa_s->current_ssid = last_ssid; 2051 } 2052 2053 if (fast_reconnect) { 2054#ifndef CONFIG_NO_SCAN_PROCESSING 2055 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS"); 2056 if (wpa_supplicant_connect(wpa_s, fast_reconnect, 2057 fast_reconnect_ssid) < 0) { 2058 /* Recover through full scan */ 2059 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2060 } 2061#endif /* CONFIG_NO_SCAN_PROCESSING */ 2062 } 2063} 2064 2065 2066#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2067void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx) 2068{ 2069 struct wpa_supplicant *wpa_s = eloop_ctx; 2070 2071 if (!wpa_s->pending_mic_error_report) 2072 return; 2073 2074 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report"); 2075 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise); 2076 wpa_s->pending_mic_error_report = 0; 2077} 2078#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2079 2080 2081static void 2082wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s, 2083 union wpa_event_data *data) 2084{ 2085 int pairwise; 2086 struct os_time t; 2087 2088 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); 2089 pairwise = (data && data->michael_mic_failure.unicast); 2090 os_get_time(&t); 2091 if ((wpa_s->last_michael_mic_error && 2092 t.sec - wpa_s->last_michael_mic_error <= 60) || 2093 wpa_s->pending_mic_error_report) { 2094 if (wpa_s->pending_mic_error_report) { 2095 /* 2096 * Send the pending MIC error report immediately since 2097 * we are going to start countermeasures and AP better 2098 * do the same. 2099 */ 2100 wpa_sm_key_request(wpa_s->wpa, 1, 2101 wpa_s->pending_mic_error_pairwise); 2102 } 2103 2104 /* Send the new MIC error report immediately since we are going 2105 * to start countermeasures and AP better do the same. 2106 */ 2107 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2108 2109 /* initialize countermeasures */ 2110 wpa_s->countermeasures = 1; 2111 2112 wpa_blacklist_add(wpa_s, wpa_s->bssid); 2113 2114 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started"); 2115 2116 /* 2117 * Need to wait for completion of request frame. We do not get 2118 * any callback for the message completion, so just wait a 2119 * short while and hope for the best. */ 2120 os_sleep(0, 10000); 2121 2122 wpa_drv_set_countermeasures(wpa_s, 1); 2123 wpa_supplicant_deauthenticate(wpa_s, 2124 WLAN_REASON_MICHAEL_MIC_FAILURE); 2125 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, 2126 wpa_s, NULL); 2127 eloop_register_timeout(60, 0, 2128 wpa_supplicant_stop_countermeasures, 2129 wpa_s, NULL); 2130 /* TODO: mark the AP rejected for 60 second. STA is 2131 * allowed to associate with another AP.. */ 2132 } else { 2133#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2134 if (wpa_s->mic_errors_seen) { 2135 /* 2136 * Reduce the effectiveness of Michael MIC error 2137 * reports as a means for attacking against TKIP if 2138 * more than one MIC failure is noticed with the same 2139 * PTK. We delay the transmission of the reports by a 2140 * random time between 0 and 60 seconds in order to 2141 * force the attacker wait 60 seconds before getting 2142 * the information on whether a frame resulted in a MIC 2143 * failure. 2144 */ 2145 u8 rval[4]; 2146 int sec; 2147 2148 if (os_get_random(rval, sizeof(rval)) < 0) 2149 sec = os_random() % 60; 2150 else 2151 sec = WPA_GET_BE32(rval) % 60; 2152 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error " 2153 "report %d seconds", sec); 2154 wpa_s->pending_mic_error_report = 1; 2155 wpa_s->pending_mic_error_pairwise = pairwise; 2156 eloop_cancel_timeout( 2157 wpa_supplicant_delayed_mic_error_report, 2158 wpa_s, NULL); 2159 eloop_register_timeout( 2160 sec, os_random() % 1000000, 2161 wpa_supplicant_delayed_mic_error_report, 2162 wpa_s, NULL); 2163 } else { 2164 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2165 } 2166#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2167 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2168#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2169 } 2170 wpa_s->last_michael_mic_error = t.sec; 2171 wpa_s->mic_errors_seen++; 2172} 2173 2174 2175#ifdef CONFIG_TERMINATE_ONLASTIF 2176static int any_interfaces(struct wpa_supplicant *head) 2177{ 2178 struct wpa_supplicant *wpa_s; 2179 2180 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) 2181 if (!wpa_s->interface_removed) 2182 return 1; 2183 return 0; 2184} 2185#endif /* CONFIG_TERMINATE_ONLASTIF */ 2186 2187 2188static void 2189wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, 2190 union wpa_event_data *data) 2191{ 2192 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) 2193 return; 2194 2195 switch (data->interface_status.ievent) { 2196 case EVENT_INTERFACE_ADDED: 2197 if (!wpa_s->interface_removed) 2198 break; 2199 wpa_s->interface_removed = 0; 2200 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); 2201 if (wpa_supplicant_driver_init(wpa_s) < 0) { 2202 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " 2203 "driver after interface was added"); 2204 } 2205 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 2206 break; 2207 case EVENT_INTERFACE_REMOVED: 2208 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed"); 2209 wpa_s->interface_removed = 1; 2210 wpa_supplicant_mark_disassoc(wpa_s); 2211 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2212 l2_packet_deinit(wpa_s->l2); 2213 wpa_s->l2 = NULL; 2214#ifdef CONFIG_IBSS_RSN 2215 ibss_rsn_deinit(wpa_s->ibss_rsn); 2216 wpa_s->ibss_rsn = NULL; 2217#endif /* CONFIG_IBSS_RSN */ 2218#ifdef CONFIG_TERMINATE_ONLASTIF 2219 /* check if last interface */ 2220 if (!any_interfaces(wpa_s->global->ifaces)) 2221 eloop_terminate(); 2222#endif /* CONFIG_TERMINATE_ONLASTIF */ 2223 break; 2224 } 2225} 2226 2227 2228#ifdef CONFIG_PEERKEY 2229static void 2230wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s, 2231 union wpa_event_data *data) 2232{ 2233 if (data == NULL) 2234 return; 2235 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer); 2236} 2237#endif /* CONFIG_PEERKEY */ 2238 2239 2240#ifdef CONFIG_TDLS 2241static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s, 2242 union wpa_event_data *data) 2243{ 2244 if (data == NULL) 2245 return; 2246 switch (data->tdls.oper) { 2247 case TDLS_REQUEST_SETUP: 2248 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer); 2249 if (wpa_tdls_is_external_setup(wpa_s->wpa)) 2250 wpa_tdls_start(wpa_s->wpa, data->tdls.peer); 2251 else 2252 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer); 2253 break; 2254 case TDLS_REQUEST_TEARDOWN: 2255 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer, 2256 data->tdls.reason_code); 2257 break; 2258 } 2259} 2260#endif /* CONFIG_TDLS */ 2261 2262 2263#ifdef CONFIG_WNM 2264static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s, 2265 union wpa_event_data *data) 2266{ 2267 if (data == NULL) 2268 return; 2269 switch (data->wnm.oper) { 2270 case WNM_OPER_SLEEP: 2271 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request " 2272 "(action=%d, intval=%d)", 2273 data->wnm.sleep_action, data->wnm.sleep_intval); 2274 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action, 2275 data->wnm.sleep_intval, NULL); 2276 break; 2277 } 2278} 2279#endif /* CONFIG_WNM */ 2280 2281 2282#ifdef CONFIG_IEEE80211R 2283static void 2284wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s, 2285 union wpa_event_data *data) 2286{ 2287 if (data == NULL) 2288 return; 2289 2290 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies, 2291 data->ft_ies.ies_len, 2292 data->ft_ies.ft_action, 2293 data->ft_ies.target_ap, 2294 data->ft_ies.ric_ies, 2295 data->ft_ies.ric_ies_len) < 0) { 2296 /* TODO: prevent MLME/driver from trying to associate? */ 2297 } 2298} 2299#endif /* CONFIG_IEEE80211R */ 2300 2301 2302#ifdef CONFIG_IBSS_RSN 2303static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s, 2304 union wpa_event_data *data) 2305{ 2306 struct wpa_ssid *ssid; 2307 if (wpa_s->wpa_state < WPA_ASSOCIATED) 2308 return; 2309 if (data == NULL) 2310 return; 2311 ssid = wpa_s->current_ssid; 2312 if (ssid == NULL) 2313 return; 2314 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 2315 return; 2316 2317 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer); 2318} 2319#endif /* CONFIG_IBSS_RSN */ 2320 2321 2322#ifdef CONFIG_IEEE80211R 2323static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, 2324 size_t len) 2325{ 2326 const u8 *sta_addr, *target_ap_addr; 2327 u16 status; 2328 2329 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); 2330 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) 2331 return; /* only SME case supported for now */ 2332 if (len < 1 + 2 * ETH_ALEN + 2) 2333 return; 2334 if (data[0] != 2) 2335 return; /* Only FT Action Response is supported for now */ 2336 sta_addr = data + 1; 2337 target_ap_addr = data + 1 + ETH_ALEN; 2338 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); 2339 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " 2340 MACSTR " TargetAP " MACSTR " status %u", 2341 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); 2342 2343 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { 2344 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR 2345 " in FT Action Response", MAC2STR(sta_addr)); 2346 return; 2347 } 2348 2349 if (status) { 2350 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " 2351 "failure (status code %d)", status); 2352 /* TODO: report error to FT code(?) */ 2353 return; 2354 } 2355 2356 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, 2357 len - (1 + 2 * ETH_ALEN + 2), 1, 2358 target_ap_addr, NULL, 0) < 0) 2359 return; 2360 2361#ifdef CONFIG_SME 2362 { 2363 struct wpa_bss *bss; 2364 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); 2365 if (bss) 2366 wpa_s->sme.freq = bss->freq; 2367 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; 2368 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, 2369 WLAN_AUTH_FT); 2370 } 2371#endif /* CONFIG_SME */ 2372} 2373#endif /* CONFIG_IEEE80211R */ 2374 2375 2376static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, 2377 struct unprot_deauth *e) 2378{ 2379#ifdef CONFIG_IEEE80211W 2380 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " 2381 "dropped: " MACSTR " -> " MACSTR 2382 " (reason code %u)", 2383 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2384 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2385#endif /* CONFIG_IEEE80211W */ 2386} 2387 2388 2389static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, 2390 struct unprot_disassoc *e) 2391{ 2392#ifdef CONFIG_IEEE80211W 2393 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " 2394 "dropped: " MACSTR " -> " MACSTR 2395 " (reason code %u)", 2396 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2397 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2398#endif /* CONFIG_IEEE80211W */ 2399} 2400 2401 2402void wpa_supplicant_event(void *ctx, enum wpa_event_type event, 2403 union wpa_event_data *data) 2404{ 2405 struct wpa_supplicant *wpa_s = ctx; 2406 u16 reason_code = 0; 2407 int locally_generated = 0; 2408 2409 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && 2410 event != EVENT_INTERFACE_ENABLED && 2411 event != EVENT_INTERFACE_STATUS && 2412 event != EVENT_SCHED_SCAN_STOPPED) { 2413 wpa_dbg(wpa_s, MSG_DEBUG, 2414 "Ignore event %s (%d) while interface is disabled", 2415 event_to_string(event), event); 2416 return; 2417 } 2418 2419#ifndef CONFIG_NO_STDOUT_DEBUG 2420{ 2421 int level = MSG_DEBUG; 2422 2423 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) { 2424 const struct ieee80211_hdr *hdr; 2425 u16 fc; 2426 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame; 2427 fc = le_to_host16(hdr->frame_control); 2428 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 2429 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) 2430 level = MSG_EXCESSIVE; 2431 } 2432 2433 wpa_dbg(wpa_s, level, "Event %s (%d) received", 2434 event_to_string(event), event); 2435} 2436#endif /* CONFIG_NO_STDOUT_DEBUG */ 2437 2438 switch (event) { 2439 case EVENT_AUTH: 2440 sme_event_auth(wpa_s, data); 2441 break; 2442 case EVENT_ASSOC: 2443 wpa_supplicant_event_assoc(wpa_s, data); 2444 break; 2445 case EVENT_DISASSOC: 2446 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); 2447 if (data) { 2448 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 2449 data->disassoc_info.reason_code, 2450 data->disassoc_info.locally_generated ? 2451 " (locally generated)" : ""); 2452 if (data->disassoc_info.addr) 2453 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 2454 MAC2STR(data->disassoc_info.addr)); 2455 } 2456#ifdef CONFIG_AP 2457 if (wpa_s->ap_iface && data && data->disassoc_info.addr) { 2458 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], 2459 data->disassoc_info.addr); 2460 break; 2461 } 2462 if (wpa_s->ap_iface) { 2463 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in " 2464 "AP mode"); 2465 break; 2466 } 2467#endif /* CONFIG_AP */ 2468 if (data) { 2469 reason_code = data->disassoc_info.reason_code; 2470 locally_generated = 2471 data->disassoc_info.locally_generated; 2472 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", 2473 data->disassoc_info.ie, 2474 data->disassoc_info.ie_len); 2475#ifdef CONFIG_P2P 2476 wpas_p2p_disassoc_notif( 2477 wpa_s, data->disassoc_info.addr, reason_code, 2478 data->disassoc_info.ie, 2479 data->disassoc_info.ie_len, 2480 locally_generated); 2481#endif /* CONFIG_P2P */ 2482 } 2483 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2484 sme_event_disassoc(wpa_s, data); 2485 /* fall through */ 2486 case EVENT_DEAUTH: 2487 if (event == EVENT_DEAUTH) { 2488 wpa_dbg(wpa_s, MSG_DEBUG, 2489 "Deauthentication notification"); 2490 if (data) { 2491 reason_code = data->deauth_info.reason_code; 2492 locally_generated = 2493 data->deauth_info.locally_generated; 2494 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 2495 data->deauth_info.reason_code, 2496 data->deauth_info.locally_generated ? 2497 " (locally generated)" : ""); 2498 if (data->deauth_info.addr) { 2499 wpa_dbg(wpa_s, MSG_DEBUG, " * address " 2500 MACSTR, 2501 MAC2STR(data->deauth_info. 2502 addr)); 2503 } 2504 wpa_hexdump(MSG_DEBUG, 2505 "Deauthentication frame IE(s)", 2506 data->deauth_info.ie, 2507 data->deauth_info.ie_len); 2508 } 2509 } 2510#ifdef CONFIG_AP 2511 if (wpa_s->ap_iface && data && data->deauth_info.addr) { 2512 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], 2513 data->deauth_info.addr); 2514 break; 2515 } 2516 if (wpa_s->ap_iface) { 2517 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in " 2518 "AP mode"); 2519 break; 2520 } 2521#endif /* CONFIG_AP */ 2522 wpa_supplicant_event_disassoc(wpa_s, reason_code, 2523 locally_generated); 2524 if (reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED || 2525 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || 2526 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) && 2527 eapol_sm_failed(wpa_s->eapol))) 2528 wpas_auth_failed(wpa_s); 2529#ifdef CONFIG_P2P 2530 if (event == EVENT_DEAUTH && data) { 2531 if (wpas_p2p_deauth_notif(wpa_s, 2532 data->deauth_info.addr, 2533 reason_code, 2534 data->deauth_info.ie, 2535 data->deauth_info.ie_len, 2536 locally_generated) > 0) { 2537 /* 2538 * The interface was removed, so cannot 2539 * continue processing any additional 2540 * operations after this. 2541 */ 2542 break; 2543 } 2544 } 2545#endif /* CONFIG_P2P */ 2546 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code, 2547 locally_generated); 2548 break; 2549 case EVENT_MICHAEL_MIC_FAILURE: 2550 wpa_supplicant_event_michael_mic_failure(wpa_s, data); 2551 break; 2552#ifndef CONFIG_NO_SCAN_PROCESSING 2553 case EVENT_SCAN_RESULTS: 2554 wpa_supplicant_event_scan_results(wpa_s, data); 2555#ifdef CONFIG_P2P 2556 if (wpa_s->global->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled && 2557 wpa_s->global->p2p != NULL && 2558 wpa_s->wpa_state != WPA_AUTHENTICATING && 2559 wpa_s->wpa_state != WPA_ASSOCIATING) { 2560 wpa_s->global->p2p_cb_on_scan_complete = 0; 2561 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) { 2562 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation " 2563 "continued after scan result processing"); 2564 } 2565 } 2566#endif /* CONFIG_P2P */ 2567 break; 2568#endif /* CONFIG_NO_SCAN_PROCESSING */ 2569 case EVENT_ASSOCINFO: 2570 wpa_supplicant_event_associnfo(wpa_s, data); 2571 break; 2572 case EVENT_INTERFACE_STATUS: 2573 wpa_supplicant_event_interface_status(wpa_s, data); 2574 break; 2575 case EVENT_PMKID_CANDIDATE: 2576 wpa_supplicant_event_pmkid_candidate(wpa_s, data); 2577 break; 2578#ifdef CONFIG_PEERKEY 2579 case EVENT_STKSTART: 2580 wpa_supplicant_event_stkstart(wpa_s, data); 2581 break; 2582#endif /* CONFIG_PEERKEY */ 2583#ifdef CONFIG_TDLS 2584 case EVENT_TDLS: 2585 wpa_supplicant_event_tdls(wpa_s, data); 2586 break; 2587#endif /* CONFIG_TDLS */ 2588#ifdef CONFIG_WNM 2589 case EVENT_WNM: 2590 wpa_supplicant_event_wnm(wpa_s, data); 2591 break; 2592#endif /* CONFIG_WNM */ 2593#ifdef CONFIG_IEEE80211R 2594 case EVENT_FT_RESPONSE: 2595 wpa_supplicant_event_ft_response(wpa_s, data); 2596 break; 2597#endif /* CONFIG_IEEE80211R */ 2598#ifdef CONFIG_IBSS_RSN 2599 case EVENT_IBSS_RSN_START: 2600 wpa_supplicant_event_ibss_rsn_start(wpa_s, data); 2601 break; 2602#endif /* CONFIG_IBSS_RSN */ 2603 case EVENT_ASSOC_REJECT: 2604 if (data->assoc_reject.bssid) 2605 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 2606 "bssid=" MACSTR " status_code=%u", 2607 MAC2STR(data->assoc_reject.bssid), 2608 data->assoc_reject.status_code); 2609 else 2610 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 2611 "status_code=%u", 2612 data->assoc_reject.status_code); 2613 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2614 sme_event_assoc_reject(wpa_s, data); 2615 else { 2616#ifdef ANDROID_P2P 2617 if(!wpa_s->current_ssid) { 2618 wpa_printf(MSG_ERROR, "current_ssid == NULL"); 2619 break; 2620 } 2621 /* If assoc reject is reported by the driver, then avoid 2622 * waiting for the authentication timeout. Cancel the 2623 * authentication timeout and retry the assoc. 2624 */ 2625 if(wpa_s->current_ssid->assoc_retry++ < 10) { 2626 wpa_printf(MSG_ERROR, "Retrying assoc: %d ", 2627 wpa_s->current_ssid->assoc_retry); 2628 2629 wpa_supplicant_cancel_auth_timeout(wpa_s); 2630 2631 /* Clear the states */ 2632 wpa_sm_notify_disassoc(wpa_s->wpa); 2633 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2634 2635 wpa_s->reassociate = 1; 2636 if (wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE) { 2637 const u8 *bl_bssid = data->assoc_reject.bssid; 2638 if (!bl_bssid || is_zero_ether_addr(bl_bssid)) 2639 bl_bssid = wpa_s->pending_bssid; 2640 wpa_blacklist_add(wpa_s, bl_bssid); 2641 wpa_supplicant_req_scan(wpa_s, 0, 0); 2642 } else { 2643 wpa_supplicant_req_scan(wpa_s, 1, 0); 2644 } 2645 } else if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) { 2646 /* If we ASSOC_REJECT's hits threshold, disable the 2647 * network 2648 */ 2649 wpa_printf(MSG_ERROR, "Assoc retry threshold reached. " 2650 "Disabling the network"); 2651 wpa_s->current_ssid->assoc_retry = 0; 2652 wpa_supplicant_disable_network(wpa_s, wpa_s->current_ssid); 2653 wpas_p2p_group_remove(wpa_s, wpa_s->ifname); 2654 } 2655#else 2656 const u8 *bssid = data->assoc_reject.bssid; 2657 if (bssid == NULL || is_zero_ether_addr(bssid)) 2658 bssid = wpa_s->pending_bssid; 2659 wpas_connection_failed(wpa_s, bssid); 2660 wpa_supplicant_mark_disassoc(wpa_s); 2661#endif /* ANDROID_P2P */ 2662 } 2663 break; 2664 case EVENT_AUTH_TIMED_OUT: 2665 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2666 sme_event_auth_timed_out(wpa_s, data); 2667 break; 2668 case EVENT_ASSOC_TIMED_OUT: 2669 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2670 sme_event_assoc_timed_out(wpa_s, data); 2671 break; 2672 case EVENT_TX_STATUS: 2673 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR 2674 " type=%d stype=%d", 2675 MAC2STR(data->tx_status.dst), 2676 data->tx_status.type, data->tx_status.stype); 2677#ifdef CONFIG_AP 2678 if (wpa_s->ap_iface == NULL) { 2679#ifdef CONFIG_OFFCHANNEL 2680 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 2681 data->tx_status.stype == WLAN_FC_STYPE_ACTION) 2682 offchannel_send_action_tx_status( 2683 wpa_s, data->tx_status.dst, 2684 data->tx_status.data, 2685 data->tx_status.data_len, 2686 data->tx_status.ack ? 2687 OFFCHANNEL_SEND_ACTION_SUCCESS : 2688 OFFCHANNEL_SEND_ACTION_NO_ACK); 2689#endif /* CONFIG_OFFCHANNEL */ 2690 break; 2691 } 2692#endif /* CONFIG_AP */ 2693#ifdef CONFIG_OFFCHANNEL 2694 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" 2695 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst)); 2696 /* 2697 * Catch TX status events for Action frames we sent via group 2698 * interface in GO mode. 2699 */ 2700 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 2701 data->tx_status.stype == WLAN_FC_STYPE_ACTION && 2702 os_memcmp(wpa_s->parent->pending_action_dst, 2703 data->tx_status.dst, ETH_ALEN) == 0) { 2704 offchannel_send_action_tx_status( 2705 wpa_s->parent, data->tx_status.dst, 2706 data->tx_status.data, 2707 data->tx_status.data_len, 2708 data->tx_status.ack ? 2709 OFFCHANNEL_SEND_ACTION_SUCCESS : 2710 OFFCHANNEL_SEND_ACTION_NO_ACK); 2711 break; 2712 } 2713#endif /* CONFIG_OFFCHANNEL */ 2714#ifdef CONFIG_AP 2715 switch (data->tx_status.type) { 2716 case WLAN_FC_TYPE_MGMT: 2717 ap_mgmt_tx_cb(wpa_s, data->tx_status.data, 2718 data->tx_status.data_len, 2719 data->tx_status.stype, 2720 data->tx_status.ack); 2721 break; 2722 case WLAN_FC_TYPE_DATA: 2723 ap_tx_status(wpa_s, data->tx_status.dst, 2724 data->tx_status.data, 2725 data->tx_status.data_len, 2726 data->tx_status.ack); 2727 break; 2728 } 2729#endif /* CONFIG_AP */ 2730 break; 2731#ifdef CONFIG_AP 2732 case EVENT_EAPOL_TX_STATUS: 2733 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst, 2734 data->eapol_tx_status.data, 2735 data->eapol_tx_status.data_len, 2736 data->eapol_tx_status.ack); 2737 break; 2738 case EVENT_DRIVER_CLIENT_POLL_OK: 2739 ap_client_poll_ok(wpa_s, data->client_poll.addr); 2740 break; 2741 case EVENT_RX_FROM_UNKNOWN: 2742 if (wpa_s->ap_iface == NULL) 2743 break; 2744 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr, 2745 data->rx_from_unknown.wds); 2746 break; 2747 case EVENT_CH_SWITCH: 2748 if (!data) 2749 break; 2750 if (!wpa_s->ap_iface) { 2751 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch " 2752 "event in non-AP mode"); 2753 break; 2754 } 2755 2756#ifdef CONFIG_AP 2757 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq, 2758 data->ch_switch.ht_enabled, 2759 data->ch_switch.ch_offset); 2760#endif /* CONFIG_AP */ 2761 break; 2762 case EVENT_RX_MGMT: { 2763 u16 fc, stype; 2764 const struct ieee80211_mgmt *mgmt; 2765 2766 mgmt = (const struct ieee80211_mgmt *) 2767 data->rx_mgmt.frame; 2768 fc = le_to_host16(mgmt->frame_control); 2769 stype = WLAN_FC_GET_STYPE(fc); 2770 2771 if (wpa_s->ap_iface == NULL) { 2772#ifdef CONFIG_P2P 2773 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2774 data->rx_mgmt.frame_len > 24) { 2775 const u8 *src = mgmt->sa; 2776 const u8 *ie = mgmt->u.probe_req.variable; 2777 size_t ie_len = data->rx_mgmt.frame_len - 2778 (mgmt->u.probe_req.variable - 2779 data->rx_mgmt.frame); 2780 wpas_p2p_probe_req_rx( 2781 wpa_s, src, mgmt->da, 2782 mgmt->bssid, ie, ie_len, 2783 data->rx_mgmt.ssi_signal); 2784 break; 2785 } 2786#endif /* CONFIG_P2P */ 2787 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " 2788 "management frame in non-AP mode"); 2789 break; 2790 } 2791 2792 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2793 data->rx_mgmt.frame_len > 24) { 2794 const u8 *ie = mgmt->u.probe_req.variable; 2795 size_t ie_len = data->rx_mgmt.frame_len - 2796 (mgmt->u.probe_req.variable - 2797 data->rx_mgmt.frame); 2798 2799 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da, 2800 mgmt->bssid, ie, ie_len, 2801 data->rx_mgmt.ssi_signal); 2802 } 2803 2804 ap_mgmt_rx(wpa_s, &data->rx_mgmt); 2805 break; 2806 } 2807#endif /* CONFIG_AP */ 2808 case EVENT_RX_ACTION: 2809 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR 2810 " Category=%u DataLen=%d freq=%d MHz", 2811 MAC2STR(data->rx_action.sa), 2812 data->rx_action.category, (int) data->rx_action.len, 2813 data->rx_action.freq); 2814#ifdef CONFIG_IEEE80211R 2815 if (data->rx_action.category == WLAN_ACTION_FT) { 2816 ft_rx_action(wpa_s, data->rx_action.data, 2817 data->rx_action.len); 2818 break; 2819 } 2820#endif /* CONFIG_IEEE80211R */ 2821#ifdef CONFIG_IEEE80211W 2822#ifdef CONFIG_SME 2823 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) { 2824 sme_sa_query_rx(wpa_s, data->rx_action.sa, 2825 data->rx_action.data, 2826 data->rx_action.len); 2827 break; 2828 } 2829#endif /* CONFIG_SME */ 2830#endif /* CONFIG_IEEE80211W */ 2831#ifdef CONFIG_WNM 2832 if (data->rx_action.category == WLAN_ACTION_WNM) { 2833 ieee802_11_rx_wnm_action(wpa_s, &data->rx_action); 2834 break; 2835 } 2836#endif /* CONFIG_WNM */ 2837#ifdef CONFIG_GAS 2838 if (data->rx_action.category == WLAN_ACTION_PUBLIC && 2839 gas_query_rx(wpa_s->gas, data->rx_action.da, 2840 data->rx_action.sa, data->rx_action.bssid, 2841 data->rx_action.data, data->rx_action.len, 2842 data->rx_action.freq) == 0) 2843 break; 2844#endif /* CONFIG_GAS */ 2845#ifdef CONFIG_TDLS 2846 if (data->rx_action.category == WLAN_ACTION_PUBLIC && 2847 data->rx_action.len >= 4 && 2848 data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) { 2849 wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery " 2850 "Response from " MACSTR, 2851 MAC2STR(data->rx_action.sa)); 2852 break; 2853 } 2854#endif /* CONFIG_TDLS */ 2855#ifdef CONFIG_P2P 2856 wpas_p2p_rx_action(wpa_s, data->rx_action.da, 2857 data->rx_action.sa, 2858 data->rx_action.bssid, 2859 data->rx_action.category, 2860 data->rx_action.data, 2861 data->rx_action.len, data->rx_action.freq); 2862#endif /* CONFIG_P2P */ 2863 break; 2864 case EVENT_RX_PROBE_REQ: 2865 if (data->rx_probe_req.sa == NULL || 2866 data->rx_probe_req.ie == NULL) 2867 break; 2868#ifdef CONFIG_AP 2869 if (wpa_s->ap_iface) { 2870 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], 2871 data->rx_probe_req.sa, 2872 data->rx_probe_req.da, 2873 data->rx_probe_req.bssid, 2874 data->rx_probe_req.ie, 2875 data->rx_probe_req.ie_len, 2876 data->rx_probe_req.ssi_signal); 2877 break; 2878 } 2879#endif /* CONFIG_AP */ 2880#ifdef CONFIG_P2P 2881 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa, 2882 data->rx_probe_req.da, 2883 data->rx_probe_req.bssid, 2884 data->rx_probe_req.ie, 2885 data->rx_probe_req.ie_len, 2886 data->rx_probe_req.ssi_signal); 2887#endif /* CONFIG_P2P */ 2888 break; 2889 case EVENT_REMAIN_ON_CHANNEL: 2890#ifdef CONFIG_OFFCHANNEL 2891 offchannel_remain_on_channel_cb( 2892 wpa_s, data->remain_on_channel.freq, 2893 data->remain_on_channel.duration); 2894#endif /* CONFIG_OFFCHANNEL */ 2895#ifdef CONFIG_P2P 2896 wpas_p2p_remain_on_channel_cb( 2897 wpa_s, data->remain_on_channel.freq, 2898 data->remain_on_channel.duration); 2899#endif /* CONFIG_P2P */ 2900 break; 2901 case EVENT_CANCEL_REMAIN_ON_CHANNEL: 2902#ifdef CONFIG_OFFCHANNEL 2903 offchannel_cancel_remain_on_channel_cb( 2904 wpa_s, data->remain_on_channel.freq); 2905#endif /* CONFIG_OFFCHANNEL */ 2906#ifdef CONFIG_P2P 2907 wpas_p2p_cancel_remain_on_channel_cb( 2908 wpa_s, data->remain_on_channel.freq); 2909#endif /* CONFIG_P2P */ 2910 break; 2911#ifdef CONFIG_P2P 2912 case EVENT_P2P_DEV_FOUND: { 2913 struct p2p_peer_info peer_info; 2914 2915 os_memset(&peer_info, 0, sizeof(peer_info)); 2916 if (data->p2p_dev_found.dev_addr) 2917 os_memcpy(peer_info.p2p_device_addr, 2918 data->p2p_dev_found.dev_addr, ETH_ALEN); 2919 if (data->p2p_dev_found.pri_dev_type) 2920 os_memcpy(peer_info.pri_dev_type, 2921 data->p2p_dev_found.pri_dev_type, 2922 sizeof(peer_info.pri_dev_type)); 2923 if (data->p2p_dev_found.dev_name) 2924 os_strlcpy(peer_info.device_name, 2925 data->p2p_dev_found.dev_name, 2926 sizeof(peer_info.device_name)); 2927 peer_info.config_methods = data->p2p_dev_found.config_methods; 2928 peer_info.dev_capab = data->p2p_dev_found.dev_capab; 2929 peer_info.group_capab = data->p2p_dev_found.group_capab; 2930 2931 /* 2932 * FIX: new_device=1 is not necessarily correct. We should 2933 * maintain a P2P peer database in wpa_supplicant and update 2934 * this information based on whether the peer is truly new. 2935 */ 2936 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1); 2937 break; 2938 } 2939 case EVENT_P2P_GO_NEG_REQ_RX: 2940 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src, 2941 data->p2p_go_neg_req_rx.dev_passwd_id); 2942 break; 2943 case EVENT_P2P_GO_NEG_COMPLETED: 2944 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res); 2945 break; 2946 case EVENT_P2P_PROV_DISC_REQUEST: 2947 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer, 2948 data->p2p_prov_disc_req.config_methods, 2949 data->p2p_prov_disc_req.dev_addr, 2950 data->p2p_prov_disc_req.pri_dev_type, 2951 data->p2p_prov_disc_req.dev_name, 2952 data->p2p_prov_disc_req.supp_config_methods, 2953 data->p2p_prov_disc_req.dev_capab, 2954 data->p2p_prov_disc_req.group_capab, 2955 NULL, 0); 2956 break; 2957 case EVENT_P2P_PROV_DISC_RESPONSE: 2958 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer, 2959 data->p2p_prov_disc_resp.config_methods); 2960 break; 2961 case EVENT_P2P_SD_REQUEST: 2962 wpas_sd_request(wpa_s, data->p2p_sd_req.freq, 2963 data->p2p_sd_req.sa, 2964 data->p2p_sd_req.dialog_token, 2965 data->p2p_sd_req.update_indic, 2966 data->p2p_sd_req.tlvs, 2967 data->p2p_sd_req.tlvs_len); 2968 break; 2969 case EVENT_P2P_SD_RESPONSE: 2970 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa, 2971 data->p2p_sd_resp.update_indic, 2972 data->p2p_sd_resp.tlvs, 2973 data->p2p_sd_resp.tlvs_len); 2974 break; 2975#endif /* CONFIG_P2P */ 2976 case EVENT_EAPOL_RX: 2977 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, 2978 data->eapol_rx.data, 2979 data->eapol_rx.data_len); 2980 break; 2981 case EVENT_SIGNAL_CHANGE: 2982 bgscan_notify_signal_change( 2983 wpa_s, data->signal_change.above_threshold, 2984 data->signal_change.current_signal, 2985 data->signal_change.current_noise, 2986 data->signal_change.current_txrate); 2987 break; 2988 case EVENT_INTERFACE_ENABLED: 2989 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); 2990 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 2991 wpa_supplicant_update_mac_addr(wpa_s); 2992#ifdef CONFIG_AP 2993 if (!wpa_s->ap_iface) { 2994 wpa_supplicant_set_state(wpa_s, 2995 WPA_DISCONNECTED); 2996 wpa_supplicant_req_scan(wpa_s, 0, 0); 2997 } else 2998 wpa_supplicant_set_state(wpa_s, 2999 WPA_COMPLETED); 3000#else /* CONFIG_AP */ 3001 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 3002 wpa_supplicant_req_scan(wpa_s, 0, 0); 3003#endif /* CONFIG_AP */ 3004 } 3005 break; 3006 case EVENT_INTERFACE_DISABLED: 3007 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); 3008 wpa_supplicant_mark_disassoc(wpa_s); 3009 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 3010 break; 3011 case EVENT_CHANNEL_LIST_CHANGED: 3012 if (wpa_s->drv_priv == NULL) 3013 break; /* Ignore event during drv initialization */ 3014 3015 free_hw_features(wpa_s); 3016 wpa_s->hw.modes = wpa_drv_get_hw_feature_data( 3017 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags); 3018 3019#ifdef CONFIG_P2P 3020 wpas_p2p_update_channel_list(wpa_s); 3021#endif /* CONFIG_P2P */ 3022 break; 3023 case EVENT_INTERFACE_UNAVAILABLE: 3024#ifdef CONFIG_P2P 3025 wpas_p2p_interface_unavailable(wpa_s); 3026#endif /* CONFIG_P2P */ 3027 break; 3028 case EVENT_BEST_CHANNEL: 3029 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " 3030 "(%d %d %d)", 3031 data->best_chan.freq_24, data->best_chan.freq_5, 3032 data->best_chan.freq_overall); 3033 wpa_s->best_24_freq = data->best_chan.freq_24; 3034 wpa_s->best_5_freq = data->best_chan.freq_5; 3035 wpa_s->best_overall_freq = data->best_chan.freq_overall; 3036#ifdef CONFIG_P2P 3037 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, 3038 data->best_chan.freq_5, 3039 data->best_chan.freq_overall); 3040#endif /* CONFIG_P2P */ 3041 break; 3042 case EVENT_UNPROT_DEAUTH: 3043 wpa_supplicant_event_unprot_deauth(wpa_s, 3044 &data->unprot_deauth); 3045 break; 3046 case EVENT_UNPROT_DISASSOC: 3047 wpa_supplicant_event_unprot_disassoc(wpa_s, 3048 &data->unprot_disassoc); 3049 break; 3050 case EVENT_STATION_LOW_ACK: 3051#ifdef CONFIG_AP 3052 if (wpa_s->ap_iface && data) 3053 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], 3054 data->low_ack.addr); 3055#endif /* CONFIG_AP */ 3056#ifdef CONFIG_TDLS 3057 if (data) 3058 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr); 3059#endif /* CONFIG_TDLS */ 3060 break; 3061 case EVENT_IBSS_PEER_LOST: 3062#ifdef CONFIG_IBSS_RSN 3063 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer); 3064#endif /* CONFIG_IBSS_RSN */ 3065 break; 3066 case EVENT_DRIVER_GTK_REKEY: 3067 if (os_memcmp(data->driver_gtk_rekey.bssid, 3068 wpa_s->bssid, ETH_ALEN)) 3069 break; 3070 if (!wpa_s->wpa) 3071 break; 3072 wpa_sm_update_replay_ctr(wpa_s->wpa, 3073 data->driver_gtk_rekey.replay_ctr); 3074 break; 3075 case EVENT_SCHED_SCAN_STOPPED: 3076 wpa_s->sched_scanning = 0; 3077 wpa_supplicant_notify_scanning(wpa_s, 0); 3078 3079 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 3080 break; 3081 3082 /* 3083 * If we timed out, start a new sched scan to continue 3084 * searching for more SSIDs. 3085 */ 3086 if (wpa_s->sched_scan_timed_out) 3087 wpa_supplicant_req_sched_scan(wpa_s); 3088 break; 3089 case EVENT_WPS_BUTTON_PUSHED: 3090#ifdef CONFIG_WPS 3091 wpas_wps_start_pbc(wpa_s, NULL, 0); 3092#endif /* CONFIG_WPS */ 3093 break; 3094 case EVENT_CONNECT_FAILED_REASON: 3095#ifdef CONFIG_AP 3096 if (!wpa_s->ap_iface || !data) 3097 break; 3098 hostapd_event_connect_failed_reason( 3099 wpa_s->ap_iface->bss[0], 3100 data->connect_failed_reason.addr, 3101 data->connect_failed_reason.code); 3102#endif /* CONFIG_AP */ 3103 break; 3104 default: 3105 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); 3106 break; 3107 } 3108} 3109