events.c revision 9657139ca0bbea9a84e0a3c7e9438d1f53c9ed24
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 47#ifndef CONFIG_NO_SCAN_PROCESSING 48static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s, 49 int new_scan); 50#endif /* CONFIG_NO_SCAN_PROCESSING */ 51 52 53static int wpas_temp_disabled(struct wpa_supplicant *wpa_s, 54 struct wpa_ssid *ssid) 55{ 56 struct os_time now; 57 58 if (ssid == NULL || ssid->disabled_until.sec == 0) 59 return 0; 60 61 os_get_time(&now); 62 if (ssid->disabled_until.sec > now.sec) 63 return ssid->disabled_until.sec - now.sec; 64 65 wpas_clear_temp_disabled(wpa_s, ssid, 0); 66 67 return 0; 68} 69 70 71static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s) 72{ 73 struct wpa_ssid *ssid, *old_ssid; 74 int res; 75 76 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) 77 return 0; 78 79 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association " 80 "information"); 81 ssid = wpa_supplicant_get_ssid(wpa_s); 82 if (ssid == NULL) { 83 wpa_msg(wpa_s, MSG_INFO, 84 "No network configuration found for the current AP"); 85 return -1; 86 } 87 88 if (wpas_network_disabled(wpa_s, ssid)) { 89 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled"); 90 return -1; 91 } 92 93 if (disallowed_bssid(wpa_s, wpa_s->bssid) || 94 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) { 95 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed"); 96 return -1; 97 } 98 99 res = wpas_temp_disabled(wpa_s, ssid); 100 if (res > 0) { 101 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily " 102 "disabled for %d second(s)", res); 103 return -1; 104 } 105 106 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the " 107 "current AP"); 108 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { 109 u8 wpa_ie[80]; 110 size_t wpa_ie_len = sizeof(wpa_ie); 111 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, 112 wpa_ie, &wpa_ie_len) < 0) 113 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites"); 114 } else { 115 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); 116 } 117 118 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) 119 eapol_sm_invalidate_cached_session(wpa_s->eapol); 120 old_ssid = wpa_s->current_ssid; 121 wpa_s->current_ssid = ssid; 122 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); 123 wpa_supplicant_initiate_eapol(wpa_s); 124 if (old_ssid != wpa_s->current_ssid) 125 wpas_notify_network_changed(wpa_s); 126 127 return 0; 128} 129 130 131void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx) 132{ 133 struct wpa_supplicant *wpa_s = eloop_ctx; 134 135 if (wpa_s->countermeasures) { 136 wpa_s->countermeasures = 0; 137 wpa_drv_set_countermeasures(wpa_s, 0); 138 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped"); 139 wpa_supplicant_req_scan(wpa_s, 0, 0); 140 } 141} 142 143 144void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s) 145{ 146 int bssid_changed; 147 148 wnm_bss_keep_alive_deinit(wpa_s); 149 150#ifdef CONFIG_IBSS_RSN 151 ibss_rsn_deinit(wpa_s->ibss_rsn); 152 wpa_s->ibss_rsn = NULL; 153#endif /* CONFIG_IBSS_RSN */ 154 155#ifdef CONFIG_AP 156 wpa_supplicant_ap_deinit(wpa_s); 157#endif /* CONFIG_AP */ 158 159 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 160 return; 161 162 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 163#ifdef ANDROID 164 wpa_s->conf->ap_scan = DEFAULT_AP_SCAN; 165#endif 166 bssid_changed = !is_zero_ether_addr(wpa_s->bssid); 167 os_memset(wpa_s->bssid, 0, ETH_ALEN); 168 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 169#ifdef CONFIG_SME 170 wpa_s->sme.prev_bssid_set = 0; 171#endif /* CONFIG_SME */ 172#ifdef CONFIG_P2P 173 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN); 174#endif /* CONFIG_P2P */ 175 wpa_s->current_bss = NULL; 176 wpa_s->assoc_freq = 0; 177#ifdef CONFIG_IEEE80211R 178#ifdef CONFIG_SME 179 if (wpa_s->sme.ft_ies) 180 sme_update_ft_ies(wpa_s, NULL, NULL, 0); 181#endif /* CONFIG_SME */ 182#endif /* CONFIG_IEEE80211R */ 183 184 if (bssid_changed) 185 wpas_notify_bssid_changed(wpa_s); 186 187 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 188 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 189 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 190 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 191 wpa_s->ap_ies_from_associnfo = 0; 192 wpa_s->current_ssid = NULL; 193 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 194 wpa_s->key_mgmt = 0; 195} 196 197 198static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s) 199{ 200 struct wpa_ie_data ie; 201 int pmksa_set = -1; 202 size_t i; 203 204 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 || 205 ie.pmkid == NULL) 206 return; 207 208 for (i = 0; i < ie.num_pmkid; i++) { 209 pmksa_set = pmksa_cache_set_current(wpa_s->wpa, 210 ie.pmkid + i * PMKID_LEN, 211 NULL, NULL, 0); 212 if (pmksa_set == 0) { 213 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); 214 break; 215 } 216 } 217 218 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from " 219 "PMKSA cache", pmksa_set == 0 ? "" : "not "); 220} 221 222 223static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s, 224 union wpa_event_data *data) 225{ 226 if (data == NULL) { 227 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate " 228 "event"); 229 return; 230 } 231 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR 232 " index=%d preauth=%d", 233 MAC2STR(data->pmkid_candidate.bssid), 234 data->pmkid_candidate.index, 235 data->pmkid_candidate.preauth); 236 237 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid, 238 data->pmkid_candidate.index, 239 data->pmkid_candidate.preauth); 240} 241 242 243static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s) 244{ 245 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 246 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) 247 return 0; 248 249#ifdef IEEE8021X_EAPOL 250 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA && 251 wpa_s->current_ssid && 252 !(wpa_s->current_ssid->eapol_flags & 253 (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 254 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) { 255 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either 256 * plaintext or static WEP keys). */ 257 return 0; 258 } 259#endif /* IEEE8021X_EAPOL */ 260 261 return 1; 262} 263 264 265/** 266 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC 267 * @wpa_s: pointer to wpa_supplicant data 268 * @ssid: Configuration data for the network 269 * Returns: 0 on success, -1 on failure 270 * 271 * This function is called when starting authentication with a network that is 272 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA). 273 */ 274int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s, 275 struct wpa_ssid *ssid) 276{ 277#ifdef IEEE8021X_EAPOL 278#ifdef PCSC_FUNCS 279 int aka = 0, sim = 0; 280 281 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL) 282 return 0; 283 284 if (ssid->eap.eap_methods == NULL) { 285 sim = 1; 286 aka = 1; 287 } else { 288 struct eap_method_type *eap = ssid->eap.eap_methods; 289 while (eap->vendor != EAP_VENDOR_IETF || 290 eap->method != EAP_TYPE_NONE) { 291 if (eap->vendor == EAP_VENDOR_IETF) { 292 if (eap->method == EAP_TYPE_SIM) 293 sim = 1; 294 else if (eap->method == EAP_TYPE_AKA || 295 eap->method == EAP_TYPE_AKA_PRIME) 296 aka = 1; 297 } 298 eap++; 299 } 300 } 301 302 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL) 303 sim = 0; 304 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL && 305 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) == 306 NULL) 307 aka = 0; 308 309 if (!sim && !aka) { 310 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to " 311 "use SIM, but neither EAP-SIM nor EAP-AKA are " 312 "enabled"); 313 return 0; 314 } 315 316 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM " 317 "(sim=%d aka=%d) - initialize PCSC", sim, aka); 318 319 wpa_s->scard = scard_init((!sim && aka) ? SCARD_USIM_ONLY : 320 SCARD_TRY_BOTH, NULL); 321 if (wpa_s->scard == NULL) { 322 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM " 323 "(pcsc-lite)"); 324 return -1; 325 } 326 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); 327 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); 328#endif /* PCSC_FUNCS */ 329#endif /* IEEE8021X_EAPOL */ 330 331 return 0; 332} 333 334 335#ifndef CONFIG_NO_SCAN_PROCESSING 336 337static int has_wep_key(struct wpa_ssid *ssid) 338{ 339 int i; 340 341 for (i = 0; i < NUM_WEP_KEYS; i++) { 342 if (ssid->wep_key_len[i]) 343 return 1; 344 } 345 346 return 0; 347} 348 349 350static int wpa_supplicant_match_privacy(struct wpa_bss *bss, 351 struct wpa_ssid *ssid) 352{ 353 int privacy = 0; 354 355 if (ssid->mixed_cell) 356 return 1; 357 358#ifdef CONFIG_WPS 359 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) 360 return 1; 361#endif /* CONFIG_WPS */ 362 363 if (has_wep_key(ssid)) 364 privacy = 1; 365 366#ifdef IEEE8021X_EAPOL 367 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 368 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 369 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) 370 privacy = 1; 371#endif /* IEEE8021X_EAPOL */ 372 373 if (wpa_key_mgmt_wpa(ssid->key_mgmt)) 374 privacy = 1; 375 376 if (bss->caps & IEEE80211_CAP_PRIVACY) 377 return privacy; 378 return !privacy; 379} 380 381 382static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s, 383 struct wpa_ssid *ssid, 384 struct wpa_bss *bss) 385{ 386 struct wpa_ie_data ie; 387 int proto_match = 0; 388 const u8 *rsn_ie, *wpa_ie; 389 int ret; 390 int wep_ok; 391 392 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss); 393 if (ret >= 0) 394 return ret; 395 396 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */ 397 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) && 398 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 399 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) || 400 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)); 401 402 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 403 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) { 404 proto_match++; 405 406 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) { 407 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse " 408 "failed"); 409 break; 410 } 411 412 if (wep_ok && 413 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 414 { 415 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 416 "in RSN IE"); 417 return 1; 418 } 419 420 if (!(ie.proto & ssid->proto)) { 421 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto " 422 "mismatch"); 423 break; 424 } 425 426 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 427 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK " 428 "cipher mismatch"); 429 break; 430 } 431 432 if (!(ie.group_cipher & ssid->group_cipher)) { 433 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK " 434 "cipher mismatch"); 435 break; 436 } 437 438 if (!(ie.key_mgmt & ssid->key_mgmt)) { 439 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt " 440 "mismatch"); 441 break; 442 } 443 444#ifdef CONFIG_IEEE80211W 445 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 446 (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? 447 wpa_s->conf->pmf : ssid->ieee80211w) == 448 MGMT_FRAME_PROTECTION_REQUIRED) { 449 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt " 450 "frame protection"); 451 break; 452 } 453#endif /* CONFIG_IEEE80211W */ 454 455 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE"); 456 return 1; 457 } 458 459 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 460 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) { 461 proto_match++; 462 463 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) { 464 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse " 465 "failed"); 466 break; 467 } 468 469 if (wep_ok && 470 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 471 { 472 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 473 "in WPA IE"); 474 return 1; 475 } 476 477 if (!(ie.proto & ssid->proto)) { 478 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto " 479 "mismatch"); 480 break; 481 } 482 483 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 484 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK " 485 "cipher mismatch"); 486 break; 487 } 488 489 if (!(ie.group_cipher & ssid->group_cipher)) { 490 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK " 491 "cipher mismatch"); 492 break; 493 } 494 495 if (!(ie.key_mgmt & ssid->key_mgmt)) { 496 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt " 497 "mismatch"); 498 break; 499 } 500 501 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE"); 502 return 1; 503 } 504 505 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie && 506 !rsn_ie) { 507 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X"); 508 return 1; 509 } 510 511 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) && 512 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) { 513 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match"); 514 return 0; 515 } 516 517 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) { 518 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2"); 519 return 1; 520 } 521 522 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with " 523 "WPA/WPA2"); 524 525 return 0; 526} 527 528 529static int freq_allowed(int *freqs, int freq) 530{ 531 int i; 532 533 if (freqs == NULL) 534 return 1; 535 536 for (i = 0; freqs[i]; i++) 537 if (freqs[i] == freq) 538 return 1; 539 return 0; 540} 541 542 543static int ht_supported(const struct hostapd_hw_modes *mode) 544{ 545 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) { 546 /* 547 * The driver did not indicate whether it supports HT. Assume 548 * it does to avoid connection issues. 549 */ 550 return 1; 551 } 552 553 /* 554 * IEEE Std 802.11n-2009 20.1.1: 555 * An HT non-AP STA shall support all EQM rates for one spatial stream. 556 */ 557 return mode->mcs_set[0] == 0xff; 558} 559 560 561static int vht_supported(const struct hostapd_hw_modes *mode) 562{ 563 if (!(mode->flags & HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN)) { 564 /* 565 * The driver did not indicate whether it supports VHT. Assume 566 * it does to avoid connection issues. 567 */ 568 return 1; 569 } 570 571 /* 572 * A VHT non-AP STA shall support MCS 0-7 for one spatial stream. 573 * TODO: Verify if this complies with the standard 574 */ 575 return (mode->vht_mcs_set[0] & 0x3) != 3; 576} 577 578 579static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss) 580{ 581 const struct hostapd_hw_modes *mode = NULL, *modes; 582 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES }; 583 const u8 *rate_ie; 584 int i, j, k; 585 586 if (bss->freq == 0) 587 return 1; /* Cannot do matching without knowing band */ 588 589 modes = wpa_s->hw.modes; 590 if (modes == NULL) { 591 /* 592 * The driver does not provide any additional information 593 * about the utilized hardware, so allow the connection attempt 594 * to continue. 595 */ 596 return 1; 597 } 598 599 for (i = 0; i < wpa_s->hw.num_modes; i++) { 600 for (j = 0; j < modes[i].num_channels; j++) { 601 int freq = modes[i].channels[j].freq; 602 if (freq == bss->freq) { 603 if (mode && 604 mode->mode == HOSTAPD_MODE_IEEE80211G) 605 break; /* do not allow 802.11b replace 606 * 802.11g */ 607 mode = &modes[i]; 608 break; 609 } 610 } 611 } 612 613 if (mode == NULL) 614 return 0; 615 616 for (i = 0; i < (int) sizeof(scan_ie); i++) { 617 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]); 618 if (rate_ie == NULL) 619 continue; 620 621 for (j = 2; j < rate_ie[1] + 2; j++) { 622 int flagged = !!(rate_ie[j] & 0x80); 623 int r = (rate_ie[j] & 0x7f) * 5; 624 625 /* 626 * IEEE Std 802.11n-2009 7.3.2.2: 627 * The new BSS Membership selector value is encoded 628 * like a legacy basic rate, but it is not a rate and 629 * only indicates if the BSS members are required to 630 * support the mandatory features of Clause 20 [HT PHY] 631 * in order to join the BSS. 632 */ 633 if (flagged && ((rate_ie[j] & 0x7f) == 634 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) { 635 if (!ht_supported(mode)) { 636 wpa_dbg(wpa_s, MSG_DEBUG, 637 " hardware does not support " 638 "HT PHY"); 639 return 0; 640 } 641 continue; 642 } 643 644 /* There's also a VHT selector for 802.11ac */ 645 if (flagged && ((rate_ie[j] & 0x7f) == 646 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) { 647 if (!vht_supported(mode)) { 648 wpa_dbg(wpa_s, MSG_DEBUG, 649 " hardware does not support " 650 "VHT PHY"); 651 return 0; 652 } 653 continue; 654 } 655 656 if (!flagged) 657 continue; 658 659 /* check for legacy basic rates */ 660 for (k = 0; k < mode->num_rates; k++) { 661 if (mode->rates[k] == r) 662 break; 663 } 664 if (k == mode->num_rates) { 665 /* 666 * IEEE Std 802.11-2007 7.3.2.2 demands that in 667 * order to join a BSS all required rates 668 * have to be supported by the hardware. 669 */ 670 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does " 671 "not support required rate %d.%d Mbps", 672 r / 10, r % 10); 673 return 0; 674 } 675 } 676 } 677 678 return 1; 679} 680 681 682static int bss_is_dmg(struct wpa_bss *bss) 683{ 684 return bss->freq > 45000; 685} 686 687 688/* 689 * Test whether BSS is in an ESS. 690 * This is done differently in DMG (60 GHz) and non-DMG bands 691 */ 692static int bss_is_ess(struct wpa_bss *bss) 693{ 694 if (bss_is_dmg(bss)) { 695 return (bss->caps & IEEE80211_CAP_DMG_MASK) == 696 IEEE80211_CAP_DMG_AP; 697 } 698 699 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) == 700 IEEE80211_CAP_ESS); 701} 702 703 704static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s, 705 int i, struct wpa_bss *bss, 706 struct wpa_ssid *group) 707{ 708 u8 wpa_ie_len, rsn_ie_len; 709 int wpa; 710 struct wpa_blacklist *e; 711 const u8 *ie; 712 struct wpa_ssid *ssid; 713 714 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 715 wpa_ie_len = ie ? ie[1] : 0; 716 717 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 718 rsn_ie_len = ie ? ie[1] : 0; 719 720 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' " 721 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s%s", 722 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len), 723 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, 724 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : "", 725 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) || 726 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) ? 727 " p2p" : ""); 728 729 e = wpa_blacklist_get(wpa_s, bss->bssid); 730 if (e) { 731 int limit = 1; 732 if (wpa_supplicant_enabled_networks(wpa_s) == 1) { 733 /* 734 * When only a single network is enabled, we can 735 * trigger blacklisting on the first failure. This 736 * should not be done with multiple enabled networks to 737 * avoid getting forced to move into a worse ESS on 738 * single error if there are no other BSSes of the 739 * current ESS. 740 */ 741 limit = 0; 742 } 743 if (e->count > limit) { 744 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 745 "(count=%d limit=%d)", e->count, limit); 746 return NULL; 747 } 748 } 749 750 if (bss->ssid_len == 0) { 751 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known"); 752 return NULL; 753 } 754 755 if (disallowed_bssid(wpa_s, bss->bssid)) { 756 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed"); 757 return NULL; 758 } 759 760 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) { 761 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed"); 762 return NULL; 763 } 764 765 wpa = wpa_ie_len > 0 || rsn_ie_len > 0; 766 767 for (ssid = group; ssid; ssid = ssid->pnext) { 768 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0); 769 int res; 770 771 if (wpas_network_disabled(wpa_s, ssid)) { 772 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled"); 773 continue; 774 } 775 776 res = wpas_temp_disabled(wpa_s, ssid); 777 if (res > 0) { 778 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled " 779 "temporarily for %d second(s)", res); 780 continue; 781 } 782 783#ifdef CONFIG_WPS 784 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) { 785 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 786 "(WPS)"); 787 continue; 788 } 789 790 if (wpa && ssid->ssid_len == 0 && 791 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 792 check_ssid = 0; 793 794 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 795 /* Only allow wildcard SSID match if an AP 796 * advertises active WPS operation that matches 797 * with our mode. */ 798 check_ssid = 1; 799 if (ssid->ssid_len == 0 && 800 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 801 check_ssid = 0; 802 } 803#endif /* CONFIG_WPS */ 804 805 if (ssid->bssid_set && ssid->ssid_len == 0 && 806 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0) 807 check_ssid = 0; 808 809 if (check_ssid && 810 (bss->ssid_len != ssid->ssid_len || 811 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) { 812 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch"); 813 continue; 814 } 815 816 if (ssid->bssid_set && 817 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) { 818 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch"); 819 continue; 820 } 821 822 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss)) 823 continue; 824 825 if (!wpa && 826 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 827 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) && 828 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) { 829 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network " 830 "not allowed"); 831 continue; 832 } 833 834 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) && 835 has_wep_key(ssid)) { 836 wpa_dbg(wpa_s, MSG_DEBUG, " skip - ignore WPA/WPA2 AP for WEP network block"); 837 continue; 838 } 839 840 if (!wpa_supplicant_match_privacy(bss, ssid)) { 841 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy " 842 "mismatch"); 843 continue; 844 } 845 846 if (!bss_is_ess(bss)) { 847 wpa_dbg(wpa_s, MSG_DEBUG, " skip - not ESS network"); 848 continue; 849 } 850 851 if (!freq_allowed(ssid->freq_list, bss->freq)) { 852 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not " 853 "allowed"); 854 continue; 855 } 856 857 if (!rate_match(wpa_s, bss)) { 858 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do " 859 "not match"); 860 continue; 861 } 862 863#ifdef CONFIG_P2P 864 if (ssid->p2p_group && 865 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) && 866 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) { 867 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no P2P IE seen"); 868 continue; 869 } 870 871 /* 872 * TODO: skip the AP if its P2P IE has Group Formation 873 * bit set in the P2P Group Capability Bitmap and we 874 * are not in Group Formation with that device. 875 */ 876#endif /* CONFIG_P2P */ 877 878 /* Matching configuration found */ 879 return ssid; 880 } 881 882 /* No matching configuration found */ 883 return NULL; 884} 885 886 887static struct wpa_bss * 888wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, 889 struct wpa_ssid *group, 890 struct wpa_ssid **selected_ssid) 891{ 892 unsigned int i; 893 894 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d", 895 group->priority); 896 897 for (i = 0; i < wpa_s->last_scan_res_used; i++) { 898 struct wpa_bss *bss = wpa_s->last_scan_res[i]; 899 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group); 900 if (!*selected_ssid) 901 continue; 902 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR 903 " ssid='%s'", 904 MAC2STR(bss->bssid), 905 wpa_ssid_txt(bss->ssid, bss->ssid_len)); 906 return bss; 907 } 908 909 return NULL; 910} 911 912 913struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s, 914 struct wpa_ssid **selected_ssid) 915{ 916 struct wpa_bss *selected = NULL; 917 int prio; 918 919 if (wpa_s->last_scan_res == NULL || 920 wpa_s->last_scan_res_used == 0) 921 return NULL; /* no scan results from last update */ 922 923 while (selected == NULL) { 924 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 925 selected = wpa_supplicant_select_bss( 926 wpa_s, wpa_s->conf->pssid[prio], 927 selected_ssid); 928 if (selected) 929 break; 930 } 931 932 if (selected == NULL && wpa_s->blacklist && 933 !wpa_s->countermeasures) { 934 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear " 935 "blacklist and try again"); 936 wpa_blacklist_clear(wpa_s); 937 wpa_s->blacklist_cleared++; 938 } else if (selected == NULL) 939 break; 940 } 941 942 return selected; 943} 944 945 946static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s, 947 int timeout_sec, int timeout_usec) 948{ 949 if (!wpa_supplicant_enabled_networks(wpa_s)) { 950 /* 951 * No networks are enabled; short-circuit request so 952 * we don't wait timeout seconds before transitioning 953 * to INACTIVE state. 954 */ 955 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request " 956 "since there are no enabled networks"); 957 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); 958#ifdef CONFIG_P2P 959 wpa_s->sta_scan_pending = 0; 960#endif /* CONFIG_P2P */ 961 return; 962 } 963 964 wpa_s->scan_for_connection = 1; 965 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec); 966} 967 968 969int wpa_supplicant_connect(struct wpa_supplicant *wpa_s, 970 struct wpa_bss *selected, 971 struct wpa_ssid *ssid) 972{ 973 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) { 974 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP 975 "PBC session overlap"); 976#ifdef CONFIG_P2P 977 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1) 978 return -1; 979#endif /* CONFIG_P2P */ 980 981#ifdef CONFIG_WPS 982 wpas_wps_cancel(wpa_s); 983#endif /* CONFIG_WPS */ 984 return -1; 985 } 986 987 wpa_msg(wpa_s, MSG_DEBUG, 988 "Considering connect request: reassociate: %d selected: " 989 MACSTR " bssid: " MACSTR " pending: " MACSTR 990 " wpa_state: %s ssid=%p current_ssid=%p", 991 wpa_s->reassociate, MAC2STR(selected->bssid), 992 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), 993 wpa_supplicant_state_txt(wpa_s->wpa_state), 994 ssid, wpa_s->current_ssid); 995 996 /* 997 * Do not trigger new association unless the BSSID has changed or if 998 * reassociation is requested. If we are in process of associating with 999 * the selected BSSID, do not trigger new attempt. 1000 */ 1001 if (wpa_s->reassociate || 1002 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 && 1003 ((wpa_s->wpa_state != WPA_ASSOCIATING && 1004 wpa_s->wpa_state != WPA_AUTHENTICATING) || 1005 (!is_zero_ether_addr(wpa_s->pending_bssid) && 1006 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) != 1007 0) || 1008 (is_zero_ether_addr(wpa_s->pending_bssid) && 1009 ssid != wpa_s->current_ssid)))) { 1010 if (wpa_supplicant_scard_init(wpa_s, ssid)) { 1011 wpa_supplicant_req_new_scan(wpa_s, 10, 0); 1012 return 0; 1013 } 1014 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR, 1015 MAC2STR(selected->bssid)); 1016 wpa_supplicant_associate(wpa_s, selected, ssid); 1017 } else { 1018 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to " 1019 "connect with the selected AP"); 1020 } 1021 1022 return 0; 1023} 1024 1025 1026static struct wpa_ssid * 1027wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s) 1028{ 1029 int prio; 1030 struct wpa_ssid *ssid; 1031 1032 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 1033 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext) 1034 { 1035 if (wpas_network_disabled(wpa_s, ssid)) 1036 continue; 1037 if (ssid->mode == IEEE80211_MODE_IBSS || 1038 ssid->mode == IEEE80211_MODE_AP) 1039 return ssid; 1040 } 1041 } 1042 return NULL; 1043} 1044 1045 1046/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based 1047 * on BSS added and BSS changed events */ 1048static void wpa_supplicant_rsn_preauth_scan_results( 1049 struct wpa_supplicant *wpa_s) 1050{ 1051 struct wpa_bss *bss; 1052 1053 if (rsn_preauth_scan_results(wpa_s->wpa) < 0) 1054 return; 1055 1056 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1057 const u8 *ssid, *rsn; 1058 1059 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID); 1060 if (ssid == NULL) 1061 continue; 1062 1063 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); 1064 if (rsn == NULL) 1065 continue; 1066 1067 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn); 1068 } 1069 1070} 1071 1072 1073static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s, 1074 struct wpa_bss *selected, 1075 struct wpa_ssid *ssid) 1076{ 1077 struct wpa_bss *current_bss = NULL; 1078 int min_diff; 1079 1080 if (wpa_s->reassociate) 1081 return 1; /* explicit request to reassociate */ 1082 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1083 return 1; /* we are not associated; continue */ 1084 if (wpa_s->current_ssid == NULL) 1085 return 1; /* unknown current SSID */ 1086 if (wpa_s->current_ssid != ssid) 1087 return 1; /* different network block */ 1088 1089 if (wpas_driver_bss_selection(wpa_s)) 1090 return 0; /* Driver-based roaming */ 1091 1092 if (wpa_s->current_ssid->ssid) 1093 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid, 1094 wpa_s->current_ssid->ssid, 1095 wpa_s->current_ssid->ssid_len); 1096 if (!current_bss) 1097 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid); 1098 1099 if (!current_bss) 1100 return 1; /* current BSS not seen in scan results */ 1101 1102 if (current_bss == selected) 1103 return 0; 1104 1105 if (selected->last_update_idx > current_bss->last_update_idx) 1106 return 1; /* current BSS not seen in the last scan */ 1107 1108#ifndef CONFIG_NO_ROAMING 1109 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation"); 1110 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d", 1111 MAC2STR(current_bss->bssid), current_bss->level); 1112 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d", 1113 MAC2STR(selected->bssid), selected->level); 1114 1115 if (wpa_s->current_ssid->bssid_set && 1116 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) == 1117 0) { 1118 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS " 1119 "has preferred BSSID"); 1120 return 1; 1121 } 1122 1123 if (current_bss->level < 0 && current_bss->level > selected->level) { 1124 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better " 1125 "signal level"); 1126 return 0; 1127 } 1128 1129 min_diff = 2; 1130 if (current_bss->level < 0) { 1131 if (current_bss->level < -85) 1132 min_diff = 1; 1133 else if (current_bss->level < -80) 1134 min_diff = 2; 1135 else if (current_bss->level < -75) 1136 min_diff = 3; 1137 else if (current_bss->level < -70) 1138 min_diff = 4; 1139 else 1140 min_diff = 5; 1141 } 1142 if (abs(current_bss->level - selected->level) < min_diff) { 1143 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference " 1144 "in signal level"); 1145 return 0; 1146 } 1147 1148 return 1; 1149#else /* CONFIG_NO_ROAMING */ 1150 return 0; 1151#endif /* CONFIG_NO_ROAMING */ 1152} 1153 1154 1155/* Return != 0 if no scan results could be fetched or if scan results should not 1156 * be shared with other virtual interfaces. */ 1157static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1158 union wpa_event_data *data, 1159 int own_request) 1160{ 1161 struct wpa_scan_results *scan_res; 1162 int ap = 0; 1163#ifndef CONFIG_NO_RANDOM_POOL 1164 size_t i, num; 1165#endif /* CONFIG_NO_RANDOM_POOL */ 1166 1167#ifdef CONFIG_AP 1168 if (wpa_s->ap_iface) 1169 ap = 1; 1170#endif /* CONFIG_AP */ 1171 1172 wpa_supplicant_notify_scanning(wpa_s, 0); 1173 1174#ifdef CONFIG_P2P 1175 if (own_request && wpa_s->global->p2p_cb_on_scan_complete && 1176 !wpa_s->global->p2p_disabled && 1177 wpa_s->global->p2p != NULL && !wpa_s->sta_scan_pending && 1178 !wpa_s->scan_res_handler) { 1179 wpa_s->global->p2p_cb_on_scan_complete = 0; 1180 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) { 1181 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation " 1182 "stopped scan processing"); 1183 wpa_s->sta_scan_pending = 1; 1184 wpa_supplicant_req_scan(wpa_s, 5, 0); 1185 return -1; 1186 } 1187 } 1188 wpa_s->sta_scan_pending = 0; 1189#endif /* CONFIG_P2P */ 1190 1191 scan_res = wpa_supplicant_get_scan_results(wpa_s, 1192 data ? &data->scan_info : 1193 NULL, 1); 1194 if (scan_res == NULL) { 1195 if (wpa_s->conf->ap_scan == 2 || ap || 1196 wpa_s->scan_res_handler == scan_only_handler) 1197 return -1; 1198 if (!own_request) 1199 return -1; 1200 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try " 1201 "scanning again"); 1202 wpa_supplicant_req_new_scan(wpa_s, 1, 0); 1203 return -1; 1204 } 1205 1206#ifndef CONFIG_NO_RANDOM_POOL 1207 num = scan_res->num; 1208 if (num > 10) 1209 num = 10; 1210 for (i = 0; i < num; i++) { 1211 u8 buf[5]; 1212 struct wpa_scan_res *res = scan_res->res[i]; 1213 buf[0] = res->bssid[5]; 1214 buf[1] = res->qual & 0xff; 1215 buf[2] = res->noise & 0xff; 1216 buf[3] = res->level & 0xff; 1217 buf[4] = res->tsf & 0xff; 1218 random_add_randomness(buf, sizeof(buf)); 1219 } 1220#endif /* CONFIG_NO_RANDOM_POOL */ 1221 1222 if (own_request && wpa_s->scan_res_handler) { 1223 void (*scan_res_handler)(struct wpa_supplicant *wpa_s, 1224 struct wpa_scan_results *scan_res); 1225 1226 scan_res_handler = wpa_s->scan_res_handler; 1227 wpa_s->scan_res_handler = NULL; 1228 scan_res_handler(wpa_s, scan_res); 1229 1230 wpa_scan_results_free(scan_res); 1231 return -2; 1232 } 1233 1234 if (ap) { 1235 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode"); 1236#ifdef CONFIG_AP 1237 if (wpa_s->ap_iface->scan_cb) 1238 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface); 1239#endif /* CONFIG_AP */ 1240 wpa_scan_results_free(scan_res); 1241 return 0; 1242 } 1243 1244 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available"); 1245 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); 1246 wpas_notify_scan_results(wpa_s); 1247 1248 wpas_notify_scan_done(wpa_s, 1); 1249 1250 if (sme_proc_obss_scan(wpa_s) > 0) { 1251 wpa_scan_results_free(scan_res); 1252 return 0; 1253 } 1254 1255 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) { 1256 wpa_scan_results_free(scan_res); 1257 return 0; 1258 } 1259 1260 if (autoscan_notify_scan(wpa_s, scan_res)) { 1261 wpa_scan_results_free(scan_res); 1262 return 0; 1263 } 1264 1265 if (wpa_s->disconnected) { 1266 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 1267 wpa_scan_results_free(scan_res); 1268 return 0; 1269 } 1270 1271 if (!wpas_driver_bss_selection(wpa_s) && 1272 bgscan_notify_scan(wpa_s, scan_res) == 1) { 1273 wpa_scan_results_free(scan_res); 1274 return 0; 1275 } 1276 1277 wpas_wps_update_ap_info(wpa_s, scan_res); 1278 1279 wpa_scan_results_free(scan_res); 1280 1281 return wpas_select_network_from_last_scan(wpa_s, 1); 1282} 1283 1284 1285static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s, 1286 int new_scan) 1287{ 1288 struct wpa_bss *selected; 1289 struct wpa_ssid *ssid = NULL; 1290 1291 selected = wpa_supplicant_pick_network(wpa_s, &ssid); 1292 1293 if (selected) { 1294 int skip; 1295 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid); 1296 if (skip) { 1297 if (new_scan) 1298 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1299 return 0; 1300 } 1301 1302 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) { 1303 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed"); 1304 return -1; 1305 } 1306 if (new_scan) 1307 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1308 /* 1309 * Do not notify other virtual radios of scan results since we do not 1310 * want them to start other associations at the same time. 1311 */ 1312 return 1; 1313 } else { 1314 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found"); 1315 ssid = wpa_supplicant_pick_new_network(wpa_s); 1316 if (ssid) { 1317 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network"); 1318 wpa_supplicant_associate(wpa_s, NULL, ssid); 1319 if (new_scan) 1320 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1321 } else { 1322 int timeout_sec = wpa_s->scan_interval; 1323 int timeout_usec = 0; 1324#ifdef CONFIG_P2P 1325 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1) 1326 return 0; 1327 1328 if (wpa_s->p2p_in_provisioning) { 1329 /* 1330 * Use shorter wait during P2P Provisioning 1331 * state to speed up group formation. 1332 */ 1333 timeout_sec = 0; 1334 timeout_usec = 250000; 1335 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1336 timeout_usec); 1337 return 0; 1338 } 1339#endif /* CONFIG_P2P */ 1340#ifdef CONFIG_INTERWORKING 1341 if (wpa_s->conf->auto_interworking && 1342 wpa_s->conf->interworking && 1343 wpa_s->conf->cred) { 1344 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: " 1345 "start ANQP fetch since no matching " 1346 "networks found"); 1347 wpa_s->network_select = 1; 1348 wpa_s->auto_network_select = 1; 1349 interworking_start_fetch_anqp(wpa_s); 1350 return 1; 1351 } 1352#endif /* CONFIG_INTERWORKING */ 1353 if (wpa_supplicant_req_sched_scan(wpa_s)) 1354 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1355 timeout_usec); 1356 } 1357 } 1358 return 0; 1359} 1360 1361 1362static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1363 union wpa_event_data *data) 1364{ 1365 const char *rn, *rn2; 1366 struct wpa_supplicant *ifs; 1367 1368 if (_wpa_supplicant_event_scan_results(wpa_s, data, 1) != 0) { 1369 /* 1370 * If no scan results could be fetched, then no need to 1371 * notify those interfaces that did not actually request 1372 * this scan. Similarly, if scan results started a new operation on this 1373 * interface, do not notify other interfaces to avoid concurrent 1374 * operations during a connection attempt. 1375 */ 1376 return; 1377 } 1378 1379 /* 1380 * Check other interfaces to see if they have the same radio-name. If 1381 * so, they get updated with this same scan info. 1382 */ 1383 if (!wpa_s->driver->get_radio_name) 1384 return; 1385 1386 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv); 1387 if (rn == NULL || rn[0] == '\0') 1388 return; 1389 1390 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces " 1391 "sharing same radio (%s) in event_scan_results", rn); 1392 1393 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) { 1394 if (ifs == wpa_s || !ifs->driver->get_radio_name) 1395 continue; 1396 1397 rn2 = ifs->driver->get_radio_name(ifs->drv_priv); 1398 if (rn2 && os_strcmp(rn, rn2) == 0) { 1399 wpa_printf(MSG_DEBUG, "%s: Updating scan results from " 1400 "sibling", ifs->ifname); 1401 _wpa_supplicant_event_scan_results(ifs, data, 0); 1402 } 1403 } 1404} 1405 1406#endif /* CONFIG_NO_SCAN_PROCESSING */ 1407 1408 1409int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s) 1410{ 1411#ifdef CONFIG_NO_SCAN_PROCESSING 1412 return -1; 1413#else /* CONFIG_NO_SCAN_PROCESSING */ 1414 struct os_time now; 1415 1416 if (wpa_s->last_scan_res_used <= 0) 1417 return -1; 1418 1419 os_get_time(&now); 1420 if (now.sec - wpa_s->last_scan.sec > 5) { 1421 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results"); 1422 return -1; 1423 } 1424 1425 return wpas_select_network_from_last_scan(wpa_s, 0); 1426#endif /* CONFIG_NO_SCAN_PROCESSING */ 1427} 1428 1429#ifdef CONFIG_WNM 1430 1431static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx) 1432{ 1433 struct wpa_supplicant *wpa_s = eloop_ctx; 1434 1435 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1436 return; 1437 1438 if (!wpa_s->no_keep_alive) { 1439 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR, 1440 MAC2STR(wpa_s->bssid)); 1441 /* TODO: could skip this if normal data traffic has been sent */ 1442 /* TODO: Consider using some more appropriate data frame for 1443 * this */ 1444 if (wpa_s->l2) 1445 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, 1446 (u8 *) "", 0); 1447 } 1448 1449#ifdef CONFIG_SME 1450 if (wpa_s->sme.bss_max_idle_period) { 1451 unsigned int msec; 1452 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */ 1453 if (msec > 100) 1454 msec -= 100; 1455 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1456 wnm_bss_keep_alive, wpa_s, NULL); 1457 } 1458#endif /* CONFIG_SME */ 1459} 1460 1461 1462static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s, 1463 const u8 *ies, size_t ies_len) 1464{ 1465 struct ieee802_11_elems elems; 1466 1467 if (ies == NULL) 1468 return; 1469 1470 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 1471 return; 1472 1473#ifdef CONFIG_SME 1474 if (elems.bss_max_idle_period) { 1475 unsigned int msec; 1476 wpa_s->sme.bss_max_idle_period = 1477 WPA_GET_LE16(elems.bss_max_idle_period); 1478 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 " 1479 "TU)%s", wpa_s->sme.bss_max_idle_period, 1480 (elems.bss_max_idle_period[2] & 0x01) ? 1481 " (protected keep-live required)" : ""); 1482 if (wpa_s->sme.bss_max_idle_period == 0) 1483 wpa_s->sme.bss_max_idle_period = 1; 1484 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) { 1485 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1486 /* msec times 1000 */ 1487 msec = wpa_s->sme.bss_max_idle_period * 1024; 1488 if (msec > 100) 1489 msec -= 100; 1490 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1491 wnm_bss_keep_alive, wpa_s, 1492 NULL); 1493 } 1494 } 1495#endif /* CONFIG_SME */ 1496} 1497 1498#endif /* CONFIG_WNM */ 1499 1500 1501void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s) 1502{ 1503#ifdef CONFIG_WNM 1504 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1505#endif /* CONFIG_WNM */ 1506} 1507 1508 1509static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s, 1510 union wpa_event_data *data) 1511{ 1512 int l, len, found = 0, wpa_found, rsn_found; 1513 const u8 *p; 1514#ifdef CONFIG_IEEE80211R 1515 u8 bssid[ETH_ALEN]; 1516#endif /* CONFIG_IEEE80211R */ 1517 1518 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); 1519 if (data->assoc_info.req_ies) 1520 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, 1521 data->assoc_info.req_ies_len); 1522 if (data->assoc_info.resp_ies) { 1523 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, 1524 data->assoc_info.resp_ies_len); 1525#ifdef CONFIG_TDLS 1526 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies, 1527 data->assoc_info.resp_ies_len); 1528#endif /* CONFIG_TDLS */ 1529#ifdef CONFIG_WNM 1530 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 1531 data->assoc_info.resp_ies_len); 1532#endif /* CONFIG_WNM */ 1533 } 1534 if (data->assoc_info.beacon_ies) 1535 wpa_hexdump(MSG_DEBUG, "beacon_ies", 1536 data->assoc_info.beacon_ies, 1537 data->assoc_info.beacon_ies_len); 1538 if (data->assoc_info.freq) 1539 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", 1540 data->assoc_info.freq); 1541 1542 p = data->assoc_info.req_ies; 1543 l = data->assoc_info.req_ies_len; 1544 1545 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ 1546 while (p && l >= 2) { 1547 len = p[1] + 2; 1548 if (len > l) { 1549 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1550 p, l); 1551 break; 1552 } 1553 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1554 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || 1555 (p[0] == WLAN_EID_RSN && p[1] >= 2)) { 1556 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) 1557 break; 1558 found = 1; 1559 wpa_find_assoc_pmkid(wpa_s); 1560 break; 1561 } 1562 l -= len; 1563 p += len; 1564 } 1565 if (!found && data->assoc_info.req_ies) 1566 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); 1567 1568#ifdef CONFIG_IEEE80211R 1569#ifdef CONFIG_SME 1570 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { 1571 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 1572 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 1573 data->assoc_info.resp_ies, 1574 data->assoc_info.resp_ies_len, 1575 bssid) < 0) { 1576 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 1577 "Reassociation Response failed"); 1578 wpa_supplicant_deauthenticate( 1579 wpa_s, WLAN_REASON_INVALID_IE); 1580 return -1; 1581 } 1582 } 1583 1584 p = data->assoc_info.resp_ies; 1585 l = data->assoc_info.resp_ies_len; 1586 1587#ifdef CONFIG_WPS_STRICT 1588 if (p && wpa_s->current_ssid && 1589 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { 1590 struct wpabuf *wps; 1591 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); 1592 if (wps == NULL) { 1593 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " 1594 "include WPS IE in (Re)Association Response"); 1595 return -1; 1596 } 1597 1598 if (wps_validate_assoc_resp(wps) < 0) { 1599 wpabuf_free(wps); 1600 wpa_supplicant_deauthenticate( 1601 wpa_s, WLAN_REASON_INVALID_IE); 1602 return -1; 1603 } 1604 wpabuf_free(wps); 1605 } 1606#endif /* CONFIG_WPS_STRICT */ 1607 1608 /* Go through the IEs and make a copy of the MDIE, if present. */ 1609 while (p && l >= 2) { 1610 len = p[1] + 2; 1611 if (len > l) { 1612 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1613 p, l); 1614 break; 1615 } 1616 if (p[0] == WLAN_EID_MOBILITY_DOMAIN && 1617 p[1] >= MOBILITY_DOMAIN_ID_LEN) { 1618 wpa_s->sme.ft_used = 1; 1619 os_memcpy(wpa_s->sme.mobility_domain, p + 2, 1620 MOBILITY_DOMAIN_ID_LEN); 1621 break; 1622 } 1623 l -= len; 1624 p += len; 1625 } 1626#endif /* CONFIG_SME */ 1627 1628 /* Process FT when SME is in the driver */ 1629 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 1630 wpa_ft_is_completed(wpa_s->wpa)) { 1631 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 1632 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 1633 data->assoc_info.resp_ies, 1634 data->assoc_info.resp_ies_len, 1635 bssid) < 0) { 1636 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 1637 "Reassociation Response failed"); 1638 wpa_supplicant_deauthenticate( 1639 wpa_s, WLAN_REASON_INVALID_IE); 1640 return -1; 1641 } 1642 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done"); 1643 } 1644 1645 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, 1646 data->assoc_info.resp_ies_len); 1647#endif /* CONFIG_IEEE80211R */ 1648 1649 /* WPA/RSN IE from Beacon/ProbeResp */ 1650 p = data->assoc_info.beacon_ies; 1651 l = data->assoc_info.beacon_ies_len; 1652 1653 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. 1654 */ 1655 wpa_found = rsn_found = 0; 1656 while (p && l >= 2) { 1657 len = p[1] + 2; 1658 if (len > l) { 1659 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", 1660 p, l); 1661 break; 1662 } 1663 if (!wpa_found && 1664 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1665 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { 1666 wpa_found = 1; 1667 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); 1668 } 1669 1670 if (!rsn_found && 1671 p[0] == WLAN_EID_RSN && p[1] >= 2) { 1672 rsn_found = 1; 1673 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); 1674 } 1675 1676 l -= len; 1677 p += len; 1678 } 1679 1680 if (!wpa_found && data->assoc_info.beacon_ies) 1681 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); 1682 if (!rsn_found && data->assoc_info.beacon_ies) 1683 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); 1684 if (wpa_found || rsn_found) 1685 wpa_s->ap_ies_from_associnfo = 1; 1686 1687 if (wpa_s->assoc_freq && data->assoc_info.freq && 1688 wpa_s->assoc_freq != data->assoc_info.freq) { 1689 wpa_printf(MSG_DEBUG, "Operating frequency changed from " 1690 "%u to %u MHz", 1691 wpa_s->assoc_freq, data->assoc_info.freq); 1692 wpa_supplicant_update_scan_results(wpa_s); 1693 } 1694 1695 wpa_s->assoc_freq = data->assoc_info.freq; 1696 1697 return 0; 1698} 1699 1700 1701static struct wpa_bss * wpa_supplicant_get_new_bss( 1702 struct wpa_supplicant *wpa_s, const u8 *bssid) 1703{ 1704 struct wpa_bss *bss = NULL; 1705 struct wpa_ssid *ssid = wpa_s->current_ssid; 1706 1707 if (ssid->ssid_len > 0) 1708 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len); 1709 if (!bss) 1710 bss = wpa_bss_get_bssid(wpa_s, bssid); 1711 1712 return bss; 1713} 1714 1715 1716static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s) 1717{ 1718 const u8 *bss_wpa = NULL, *bss_rsn = NULL; 1719 1720 if (!wpa_s->current_bss || !wpa_s->current_ssid) 1721 return -1; 1722 1723 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt)) 1724 return 0; 1725 1726 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss, 1727 WPA_IE_VENDOR_TYPE); 1728 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN); 1729 1730 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, 1731 bss_wpa ? 2 + bss_wpa[1] : 0) || 1732 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, 1733 bss_rsn ? 2 + bss_rsn[1] : 0)) 1734 return -1; 1735 1736 return 0; 1737} 1738 1739 1740static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, 1741 union wpa_event_data *data) 1742{ 1743 u8 bssid[ETH_ALEN]; 1744 int ft_completed; 1745 1746#ifdef CONFIG_AP 1747 if (wpa_s->ap_iface) { 1748 hostapd_notif_assoc(wpa_s->ap_iface->bss[0], 1749 data->assoc_info.addr, 1750 data->assoc_info.req_ies, 1751 data->assoc_info.req_ies_len, 1752 data->assoc_info.reassoc); 1753 return; 1754 } 1755#endif /* CONFIG_AP */ 1756 1757 ft_completed = wpa_ft_is_completed(wpa_s->wpa); 1758 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) 1759 return; 1760 1761 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { 1762 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID"); 1763 wpa_supplicant_deauthenticate( 1764 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1765 return; 1766 } 1767 1768 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); 1769 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) { 1770 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" 1771 MACSTR, MAC2STR(bssid)); 1772 random_add_randomness(bssid, ETH_ALEN); 1773 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); 1774 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 1775 wpas_notify_bssid_changed(wpa_s); 1776 1777 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { 1778 wpa_clear_keys(wpa_s, bssid); 1779 } 1780 if (wpa_supplicant_select_config(wpa_s) < 0) { 1781 wpa_supplicant_deauthenticate( 1782 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1783 return; 1784 } 1785 if (wpa_s->current_ssid) { 1786 struct wpa_bss *bss = NULL; 1787 1788 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 1789 if (!bss) { 1790 wpa_supplicant_update_scan_results(wpa_s); 1791 1792 /* Get the BSS from the new scan results */ 1793 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 1794 } 1795 1796 if (bss) 1797 wpa_s->current_bss = bss; 1798 } 1799 1800#ifdef ANDROID 1801 if (wpa_s->conf->ap_scan == 1) { 1802#else 1803 if (wpa_s->conf->ap_scan == 1 && 1804 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) { 1805#endif 1806 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0) 1807 wpa_msg(wpa_s, MSG_WARNING, 1808 "WPA/RSN IEs not updated"); 1809 } 1810 } 1811 1812#ifdef CONFIG_SME 1813 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); 1814 wpa_s->sme.prev_bssid_set = 1; 1815#endif /* CONFIG_SME */ 1816 1817 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); 1818 if (wpa_s->current_ssid) { 1819 /* When using scanning (ap_scan=1), SIM PC/SC interface can be 1820 * initialized before association, but for other modes, 1821 * initialize PC/SC here, if the current configuration needs 1822 * smartcard or SIM/USIM. */ 1823 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); 1824 } 1825 wpa_sm_notify_assoc(wpa_s->wpa, bssid); 1826 if (wpa_s->l2) 1827 l2_packet_notify_auth_start(wpa_s->l2); 1828 1829 /* 1830 * Set portEnabled first to FALSE in order to get EAP state machine out 1831 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE 1832 * state machine may transit to AUTHENTICATING state based on obsolete 1833 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to 1834 * AUTHENTICATED without ever giving chance to EAP state machine to 1835 * reset the state. 1836 */ 1837 if (!ft_completed) { 1838 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 1839 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 1840 } 1841 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed) 1842 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 1843 /* 802.1X::portControl = Auto */ 1844 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); 1845 wpa_s->eapol_received = 0; 1846 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1847 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || 1848 (wpa_s->current_ssid && 1849 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { 1850 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE && 1851 (wpa_s->drv_flags & 1852 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) { 1853 /* 1854 * Set the key after having received joined-IBSS event 1855 * from the driver. 1856 */ 1857 wpa_supplicant_set_wpa_none_key(wpa_s, 1858 wpa_s->current_ssid); 1859 } 1860 wpa_supplicant_cancel_auth_timeout(wpa_s); 1861 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1862 } else if (!ft_completed) { 1863 /* Timeout for receiving the first EAPOL packet */ 1864 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); 1865 } 1866 wpa_supplicant_cancel_scan(wpa_s); 1867 1868 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1869 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { 1870 /* 1871 * We are done; the driver will take care of RSN 4-way 1872 * handshake. 1873 */ 1874 wpa_supplicant_cancel_auth_timeout(wpa_s); 1875 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1876 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1877 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1878 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1879 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { 1880 /* 1881 * The driver will take care of RSN 4-way handshake, so we need 1882 * to allow EAPOL supplicant to complete its work without 1883 * waiting for WPA supplicant. 1884 */ 1885 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1886 } else if (ft_completed) { 1887 /* 1888 * FT protocol completed - make sure EAPOL state machine ends 1889 * up in authenticated. 1890 */ 1891 wpa_supplicant_cancel_auth_timeout(wpa_s); 1892 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1893 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1894 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1895 } 1896 1897 wpa_s->last_eapol_matches_bssid = 0; 1898 1899 if (wpa_s->pending_eapol_rx) { 1900 struct os_time now, age; 1901 os_get_time(&now); 1902 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age); 1903 if (age.sec == 0 && age.usec < 100000 && 1904 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == 1905 0) { 1906 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " 1907 "frame that was received just before " 1908 "association notification"); 1909 wpa_supplicant_rx_eapol( 1910 wpa_s, wpa_s->pending_eapol_rx_src, 1911 wpabuf_head(wpa_s->pending_eapol_rx), 1912 wpabuf_len(wpa_s->pending_eapol_rx)); 1913 } 1914 wpabuf_free(wpa_s->pending_eapol_rx); 1915 wpa_s->pending_eapol_rx = NULL; 1916 } 1917 1918 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1919 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 1920 wpa_s->current_ssid && 1921 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) { 1922 /* Set static WEP keys again */ 1923 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); 1924 } 1925 1926#ifdef CONFIG_IBSS_RSN 1927 if (wpa_s->current_ssid && 1928 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 1929 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && 1930 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE && 1931 wpa_s->ibss_rsn == NULL) { 1932 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s); 1933 if (!wpa_s->ibss_rsn) { 1934 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN"); 1935 wpa_supplicant_deauthenticate( 1936 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1937 return; 1938 } 1939 1940 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk); 1941 } 1942#endif /* CONFIG_IBSS_RSN */ 1943 1944 wpas_wps_notify_assoc(wpa_s, bssid); 1945} 1946 1947 1948static int disconnect_reason_recoverable(u16 reason_code) 1949{ 1950 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY || 1951 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA || 1952 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA; 1953} 1954 1955 1956static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s, 1957 u16 reason_code, 1958 int locally_generated) 1959{ 1960 const u8 *bssid; 1961 1962 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 1963 /* 1964 * At least Host AP driver and a Prism3 card seemed to be 1965 * generating streams of disconnected events when configuring 1966 * IBSS for WPA-None. Ignore them for now. 1967 */ 1968 return; 1969 } 1970 1971 bssid = wpa_s->bssid; 1972 if (is_zero_ether_addr(bssid)) 1973 bssid = wpa_s->pending_bssid; 1974 1975 if (!is_zero_ether_addr(bssid) || 1976 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 1977 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR 1978 " reason=%d%s", 1979 MAC2STR(bssid), reason_code, 1980 locally_generated ? " locally_generated=1" : ""); 1981 } 1982} 1983 1984 1985static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code, 1986 int locally_generated) 1987{ 1988 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE || 1989 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 1990 return 0; /* Not in 4-way handshake with PSK */ 1991 1992 /* 1993 * It looks like connection was lost while trying to go through PSK 1994 * 4-way handshake. Filter out known disconnection cases that are caused 1995 * by something else than PSK mismatch to avoid confusing reports. 1996 */ 1997 1998 if (locally_generated) { 1999 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS) 2000 return 0; 2001 } 2002 2003 return 1; 2004} 2005 2006 2007static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s, 2008 u16 reason_code, 2009 int locally_generated) 2010{ 2011 const u8 *bssid; 2012 int authenticating; 2013 u8 prev_pending_bssid[ETH_ALEN]; 2014 struct wpa_bss *fast_reconnect = NULL; 2015#ifndef CONFIG_NO_SCAN_PROCESSING 2016 struct wpa_ssid *fast_reconnect_ssid = NULL; 2017#endif /* CONFIG_NO_SCAN_PROCESSING */ 2018 struct wpa_ssid *last_ssid; 2019 2020 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING; 2021 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN); 2022 2023 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 2024 /* 2025 * At least Host AP driver and a Prism3 card seemed to be 2026 * generating streams of disconnected events when configuring 2027 * IBSS for WPA-None. Ignore them for now. 2028 */ 2029 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in " 2030 "IBSS/WPA-None mode"); 2031 return; 2032 } 2033 2034 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) { 2035 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - " 2036 "pre-shared key may be incorrect"); 2037 if (wpas_p2p_4way_hs_failed(wpa_s) > 0) 2038 return; /* P2P group removed */ 2039 wpas_auth_failed(wpa_s); 2040 } 2041 if (!wpa_s->disconnected && 2042 (!wpa_s->auto_reconnect_disabled || 2043 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS)) { 2044 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to " 2045 "reconnect (wps=%d wpa_state=%d)", 2046 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS, 2047 wpa_s->wpa_state); 2048 if (wpa_s->wpa_state == WPA_COMPLETED && 2049 wpa_s->current_ssid && 2050 wpa_s->current_ssid->mode == WPAS_MODE_INFRA && 2051 !locally_generated && 2052 disconnect_reason_recoverable(reason_code)) { 2053 /* 2054 * It looks like the AP has dropped association with 2055 * us, but could allow us to get back in. Try to 2056 * reconnect to the same BSS without full scan to save 2057 * time for some common cases. 2058 */ 2059 fast_reconnect = wpa_s->current_bss; 2060#ifndef CONFIG_NO_SCAN_PROCESSING 2061 fast_reconnect_ssid = wpa_s->current_ssid; 2062#endif /* CONFIG_NO_SCAN_PROCESSING */ 2063 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) 2064#ifdef ANDROID 2065 wpa_supplicant_req_scan(wpa_s, 0, 500000); 2066#else 2067 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2068#endif 2069 else 2070 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new " 2071 "immediate scan"); 2072 } else { 2073 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not " 2074 "try to re-connect"); 2075 wpa_s->reassociate = 0; 2076 wpa_s->disconnected = 1; 2077 wpa_supplicant_cancel_sched_scan(wpa_s); 2078 } 2079 bssid = wpa_s->bssid; 2080 if (is_zero_ether_addr(bssid)) 2081 bssid = wpa_s->pending_bssid; 2082 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 2083 wpas_connection_failed(wpa_s, bssid); 2084 wpa_sm_notify_disassoc(wpa_s->wpa); 2085 if (locally_generated) 2086 wpa_s->disconnect_reason = -reason_code; 2087 else 2088 wpa_s->disconnect_reason = reason_code; 2089 wpas_notify_disconnect_reason(wpa_s); 2090 if (wpa_supplicant_dynamic_keys(wpa_s)) { 2091 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys"); 2092 wpa_s->keys_cleared = 0; 2093 wpa_clear_keys(wpa_s, wpa_s->bssid); 2094 } 2095 last_ssid = wpa_s->current_ssid; 2096 wpa_supplicant_mark_disassoc(wpa_s); 2097 2098 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) { 2099 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); 2100 wpa_s->current_ssid = last_ssid; 2101 } 2102 2103 if (fast_reconnect) { 2104#ifndef CONFIG_NO_SCAN_PROCESSING 2105 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS"); 2106 if (wpa_supplicant_connect(wpa_s, fast_reconnect, 2107 fast_reconnect_ssid) < 0) { 2108 /* Recover through full scan */ 2109 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2110 } 2111#endif /* CONFIG_NO_SCAN_PROCESSING */ 2112 } 2113} 2114 2115 2116#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2117void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx) 2118{ 2119 struct wpa_supplicant *wpa_s = eloop_ctx; 2120 2121 if (!wpa_s->pending_mic_error_report) 2122 return; 2123 2124 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report"); 2125 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise); 2126 wpa_s->pending_mic_error_report = 0; 2127} 2128#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2129 2130 2131static void 2132wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s, 2133 union wpa_event_data *data) 2134{ 2135 int pairwise; 2136 struct os_time t; 2137 2138 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); 2139 pairwise = (data && data->michael_mic_failure.unicast); 2140 os_get_time(&t); 2141 if ((wpa_s->last_michael_mic_error && 2142 t.sec - wpa_s->last_michael_mic_error <= 60) || 2143 wpa_s->pending_mic_error_report) { 2144 if (wpa_s->pending_mic_error_report) { 2145 /* 2146 * Send the pending MIC error report immediately since 2147 * we are going to start countermeasures and AP better 2148 * do the same. 2149 */ 2150 wpa_sm_key_request(wpa_s->wpa, 1, 2151 wpa_s->pending_mic_error_pairwise); 2152 } 2153 2154 /* Send the new MIC error report immediately since we are going 2155 * to start countermeasures and AP better do the same. 2156 */ 2157 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2158 2159 /* initialize countermeasures */ 2160 wpa_s->countermeasures = 1; 2161 2162 wpa_blacklist_add(wpa_s, wpa_s->bssid); 2163 2164 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started"); 2165 2166 /* 2167 * Need to wait for completion of request frame. We do not get 2168 * any callback for the message completion, so just wait a 2169 * short while and hope for the best. */ 2170 os_sleep(0, 10000); 2171 2172 wpa_drv_set_countermeasures(wpa_s, 1); 2173 wpa_supplicant_deauthenticate(wpa_s, 2174 WLAN_REASON_MICHAEL_MIC_FAILURE); 2175 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, 2176 wpa_s, NULL); 2177 eloop_register_timeout(60, 0, 2178 wpa_supplicant_stop_countermeasures, 2179 wpa_s, NULL); 2180 /* TODO: mark the AP rejected for 60 second. STA is 2181 * allowed to associate with another AP.. */ 2182 } else { 2183#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2184 if (wpa_s->mic_errors_seen) { 2185 /* 2186 * Reduce the effectiveness of Michael MIC error 2187 * reports as a means for attacking against TKIP if 2188 * more than one MIC failure is noticed with the same 2189 * PTK. We delay the transmission of the reports by a 2190 * random time between 0 and 60 seconds in order to 2191 * force the attacker wait 60 seconds before getting 2192 * the information on whether a frame resulted in a MIC 2193 * failure. 2194 */ 2195 u8 rval[4]; 2196 int sec; 2197 2198 if (os_get_random(rval, sizeof(rval)) < 0) 2199 sec = os_random() % 60; 2200 else 2201 sec = WPA_GET_BE32(rval) % 60; 2202 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error " 2203 "report %d seconds", sec); 2204 wpa_s->pending_mic_error_report = 1; 2205 wpa_s->pending_mic_error_pairwise = pairwise; 2206 eloop_cancel_timeout( 2207 wpa_supplicant_delayed_mic_error_report, 2208 wpa_s, NULL); 2209 eloop_register_timeout( 2210 sec, os_random() % 1000000, 2211 wpa_supplicant_delayed_mic_error_report, 2212 wpa_s, NULL); 2213 } else { 2214 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2215 } 2216#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2217 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2218#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2219 } 2220 wpa_s->last_michael_mic_error = t.sec; 2221 wpa_s->mic_errors_seen++; 2222} 2223 2224 2225#ifdef CONFIG_TERMINATE_ONLASTIF 2226static int any_interfaces(struct wpa_supplicant *head) 2227{ 2228 struct wpa_supplicant *wpa_s; 2229 2230 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) 2231 if (!wpa_s->interface_removed) 2232 return 1; 2233 return 0; 2234} 2235#endif /* CONFIG_TERMINATE_ONLASTIF */ 2236 2237 2238static void 2239wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, 2240 union wpa_event_data *data) 2241{ 2242 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) 2243 return; 2244 2245 switch (data->interface_status.ievent) { 2246 case EVENT_INTERFACE_ADDED: 2247 if (!wpa_s->interface_removed) 2248 break; 2249 wpa_s->interface_removed = 0; 2250 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); 2251 if (wpa_supplicant_driver_init(wpa_s) < 0) { 2252 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " 2253 "driver after interface was added"); 2254 } 2255 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 2256 break; 2257 case EVENT_INTERFACE_REMOVED: 2258 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed"); 2259 wpa_s->interface_removed = 1; 2260 wpa_supplicant_mark_disassoc(wpa_s); 2261 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2262 l2_packet_deinit(wpa_s->l2); 2263 wpa_s->l2 = NULL; 2264#ifdef CONFIG_IBSS_RSN 2265 ibss_rsn_deinit(wpa_s->ibss_rsn); 2266 wpa_s->ibss_rsn = NULL; 2267#endif /* CONFIG_IBSS_RSN */ 2268#ifdef CONFIG_TERMINATE_ONLASTIF 2269 /* check if last interface */ 2270 if (!any_interfaces(wpa_s->global->ifaces)) 2271 eloop_terminate(); 2272#endif /* CONFIG_TERMINATE_ONLASTIF */ 2273 break; 2274 } 2275} 2276 2277 2278#ifdef CONFIG_PEERKEY 2279static void 2280wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s, 2281 union wpa_event_data *data) 2282{ 2283 if (data == NULL) 2284 return; 2285 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer); 2286} 2287#endif /* CONFIG_PEERKEY */ 2288 2289 2290#ifdef CONFIG_TDLS 2291static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s, 2292 union wpa_event_data *data) 2293{ 2294 if (data == NULL) 2295 return; 2296 switch (data->tdls.oper) { 2297 case TDLS_REQUEST_SETUP: 2298 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer); 2299 if (wpa_tdls_is_external_setup(wpa_s->wpa)) 2300 wpa_tdls_start(wpa_s->wpa, data->tdls.peer); 2301 else 2302 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer); 2303 break; 2304 case TDLS_REQUEST_TEARDOWN: 2305 if (wpa_tdls_is_external_setup(wpa_s->wpa)) 2306 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer, 2307 data->tdls.reason_code); 2308 else 2309 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN, 2310 data->tdls.peer); 2311 break; 2312 } 2313} 2314#endif /* CONFIG_TDLS */ 2315 2316 2317#ifdef CONFIG_WNM 2318static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s, 2319 union wpa_event_data *data) 2320{ 2321 if (data == NULL) 2322 return; 2323 switch (data->wnm.oper) { 2324 case WNM_OPER_SLEEP: 2325 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request " 2326 "(action=%d, intval=%d)", 2327 data->wnm.sleep_action, data->wnm.sleep_intval); 2328 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action, 2329 data->wnm.sleep_intval, NULL); 2330 break; 2331 } 2332} 2333#endif /* CONFIG_WNM */ 2334 2335 2336#ifdef CONFIG_IEEE80211R 2337static void 2338wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s, 2339 union wpa_event_data *data) 2340{ 2341 if (data == NULL) 2342 return; 2343 2344 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies, 2345 data->ft_ies.ies_len, 2346 data->ft_ies.ft_action, 2347 data->ft_ies.target_ap, 2348 data->ft_ies.ric_ies, 2349 data->ft_ies.ric_ies_len) < 0) { 2350 /* TODO: prevent MLME/driver from trying to associate? */ 2351 } 2352} 2353#endif /* CONFIG_IEEE80211R */ 2354 2355 2356#ifdef CONFIG_IBSS_RSN 2357static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s, 2358 union wpa_event_data *data) 2359{ 2360 struct wpa_ssid *ssid; 2361 if (wpa_s->wpa_state < WPA_ASSOCIATED) 2362 return; 2363 if (data == NULL) 2364 return; 2365 ssid = wpa_s->current_ssid; 2366 if (ssid == NULL) 2367 return; 2368 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 2369 return; 2370 2371 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer); 2372} 2373 2374 2375static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s, 2376 union wpa_event_data *data) 2377{ 2378 struct wpa_ssid *ssid = wpa_s->current_ssid; 2379 2380 if (ssid == NULL) 2381 return; 2382 2383 /* check if the ssid is correctly configured as IBSS/RSN */ 2384 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 2385 return; 2386 2387 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame, 2388 data->rx_mgmt.frame_len); 2389} 2390#endif /* CONFIG_IBSS_RSN */ 2391 2392 2393#ifdef CONFIG_IEEE80211R 2394static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, 2395 size_t len) 2396{ 2397 const u8 *sta_addr, *target_ap_addr; 2398 u16 status; 2399 2400 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); 2401 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) 2402 return; /* only SME case supported for now */ 2403 if (len < 1 + 2 * ETH_ALEN + 2) 2404 return; 2405 if (data[0] != 2) 2406 return; /* Only FT Action Response is supported for now */ 2407 sta_addr = data + 1; 2408 target_ap_addr = data + 1 + ETH_ALEN; 2409 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); 2410 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " 2411 MACSTR " TargetAP " MACSTR " status %u", 2412 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); 2413 2414 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { 2415 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR 2416 " in FT Action Response", MAC2STR(sta_addr)); 2417 return; 2418 } 2419 2420 if (status) { 2421 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " 2422 "failure (status code %d)", status); 2423 /* TODO: report error to FT code(?) */ 2424 return; 2425 } 2426 2427 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, 2428 len - (1 + 2 * ETH_ALEN + 2), 1, 2429 target_ap_addr, NULL, 0) < 0) 2430 return; 2431 2432#ifdef CONFIG_SME 2433 { 2434 struct wpa_bss *bss; 2435 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); 2436 if (bss) 2437 wpa_s->sme.freq = bss->freq; 2438 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; 2439 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, 2440 WLAN_AUTH_FT); 2441 } 2442#endif /* CONFIG_SME */ 2443} 2444#endif /* CONFIG_IEEE80211R */ 2445 2446 2447static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, 2448 struct unprot_deauth *e) 2449{ 2450#ifdef CONFIG_IEEE80211W 2451 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " 2452 "dropped: " MACSTR " -> " MACSTR 2453 " (reason code %u)", 2454 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2455 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2456#endif /* CONFIG_IEEE80211W */ 2457} 2458 2459 2460static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, 2461 struct unprot_disassoc *e) 2462{ 2463#ifdef CONFIG_IEEE80211W 2464 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " 2465 "dropped: " MACSTR " -> " MACSTR 2466 " (reason code %u)", 2467 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2468 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2469#endif /* CONFIG_IEEE80211W */ 2470} 2471 2472 2473static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr, 2474 u16 reason_code, int locally_generated, 2475 const u8 *ie, size_t ie_len, int deauth) 2476{ 2477#ifdef CONFIG_AP 2478 if (wpa_s->ap_iface && addr) { 2479 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr); 2480 return; 2481 } 2482 2483 if (wpa_s->ap_iface) { 2484 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode"); 2485 return; 2486 } 2487#endif /* CONFIG_AP */ 2488 2489 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated); 2490 2491 if (reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED || 2492 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || 2493 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) && 2494 eapol_sm_failed(wpa_s->eapol))) 2495 wpas_auth_failed(wpa_s); 2496 2497#ifdef CONFIG_P2P 2498 if (deauth && reason_code > 0) { 2499 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len, 2500 locally_generated) > 0) { 2501 /* 2502 * The interface was removed, so cannot continue 2503 * processing any additional operations after this. 2504 */ 2505 return; 2506 } 2507 } 2508#endif /* CONFIG_P2P */ 2509 2510 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code, 2511 locally_generated); 2512} 2513 2514 2515static void wpas_event_disassoc(struct wpa_supplicant *wpa_s, 2516 struct disassoc_info *info) 2517{ 2518 u16 reason_code = 0; 2519 int locally_generated = 0; 2520 const u8 *addr = NULL; 2521 const u8 *ie = NULL; 2522 size_t ie_len = 0; 2523 2524 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); 2525 2526 if (info) { 2527 addr = info->addr; 2528 ie = info->ie; 2529 ie_len = info->ie_len; 2530 reason_code = info->reason_code; 2531 locally_generated = info->locally_generated; 2532 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code, 2533 locally_generated ? " (locally generated)" : ""); 2534 if (addr) 2535 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 2536 MAC2STR(addr)); 2537 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", 2538 ie, ie_len); 2539 } 2540 2541#ifdef CONFIG_AP 2542 if (wpa_s->ap_iface && info && info->addr) { 2543 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr); 2544 return; 2545 } 2546 2547 if (wpa_s->ap_iface) { 2548 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode"); 2549 return; 2550 } 2551#endif /* CONFIG_AP */ 2552 2553#ifdef CONFIG_P2P 2554 if (info) { 2555 wpas_p2p_disassoc_notif( 2556 wpa_s, info->addr, reason_code, info->ie, info->ie_len, 2557 locally_generated); 2558 } 2559#endif /* CONFIG_P2P */ 2560 2561 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2562 sme_event_disassoc(wpa_s, info); 2563 2564 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated, 2565 ie, ie_len, 0); 2566} 2567 2568 2569static void wpas_event_deauth(struct wpa_supplicant *wpa_s, 2570 struct deauth_info *info) 2571{ 2572 u16 reason_code = 0; 2573 int locally_generated = 0; 2574 const u8 *addr = NULL; 2575 const u8 *ie = NULL; 2576 size_t ie_len = 0; 2577 2578 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification"); 2579 2580 if (info) { 2581 addr = info->addr; 2582 ie = info->ie; 2583 ie_len = info->ie_len; 2584 reason_code = info->reason_code; 2585 locally_generated = info->locally_generated; 2586 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 2587 reason_code, 2588 locally_generated ? " (locally generated)" : ""); 2589 if (addr) { 2590 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 2591 MAC2STR(addr)); 2592 } 2593 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)", 2594 ie, ie_len); 2595 } 2596 2597 wpa_reset_ft_completed(wpa_s->wpa); 2598 2599 wpas_event_disconnect(wpa_s, addr, reason_code, 2600 locally_generated, ie, ie_len, 1); 2601} 2602 2603 2604void wpa_supplicant_event(void *ctx, enum wpa_event_type event, 2605 union wpa_event_data *data) 2606{ 2607 struct wpa_supplicant *wpa_s = ctx; 2608 2609 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && 2610 event != EVENT_INTERFACE_ENABLED && 2611 event != EVENT_INTERFACE_STATUS && 2612 event != EVENT_SCHED_SCAN_STOPPED) { 2613 wpa_dbg(wpa_s, MSG_DEBUG, 2614 "Ignore event %s (%d) while interface is disabled", 2615 event_to_string(event), event); 2616 return; 2617 } 2618 2619#ifndef CONFIG_NO_STDOUT_DEBUG 2620{ 2621 int level = MSG_DEBUG; 2622 2623 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) { 2624 const struct ieee80211_hdr *hdr; 2625 u16 fc; 2626 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame; 2627 fc = le_to_host16(hdr->frame_control); 2628 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 2629 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) 2630 level = MSG_EXCESSIVE; 2631 } 2632 2633 wpa_dbg(wpa_s, level, "Event %s (%d) received", 2634 event_to_string(event), event); 2635} 2636#endif /* CONFIG_NO_STDOUT_DEBUG */ 2637 2638 switch (event) { 2639 case EVENT_AUTH: 2640 sme_event_auth(wpa_s, data); 2641 break; 2642 case EVENT_ASSOC: 2643 wpa_supplicant_event_assoc(wpa_s, data); 2644 break; 2645 case EVENT_DISASSOC: 2646 wpas_event_disassoc(wpa_s, 2647 data ? &data->disassoc_info : NULL); 2648 break; 2649 case EVENT_DEAUTH: 2650 wpas_event_deauth(wpa_s, 2651 data ? &data->deauth_info : NULL); 2652 break; 2653 case EVENT_MICHAEL_MIC_FAILURE: 2654 wpa_supplicant_event_michael_mic_failure(wpa_s, data); 2655 break; 2656#ifndef CONFIG_NO_SCAN_PROCESSING 2657 case EVENT_SCAN_RESULTS: 2658 wpa_supplicant_event_scan_results(wpa_s, data); 2659 if (wpa_s->wpa_state != WPA_AUTHENTICATING && 2660 wpa_s->wpa_state != WPA_ASSOCIATING) 2661 wpas_p2p_continue_after_scan(wpa_s); 2662 break; 2663#endif /* CONFIG_NO_SCAN_PROCESSING */ 2664 case EVENT_ASSOCINFO: 2665 wpa_supplicant_event_associnfo(wpa_s, data); 2666 break; 2667 case EVENT_INTERFACE_STATUS: 2668 wpa_supplicant_event_interface_status(wpa_s, data); 2669 break; 2670 case EVENT_PMKID_CANDIDATE: 2671 wpa_supplicant_event_pmkid_candidate(wpa_s, data); 2672 break; 2673#ifdef CONFIG_PEERKEY 2674 case EVENT_STKSTART: 2675 wpa_supplicant_event_stkstart(wpa_s, data); 2676 break; 2677#endif /* CONFIG_PEERKEY */ 2678#ifdef CONFIG_TDLS 2679 case EVENT_TDLS: 2680 wpa_supplicant_event_tdls(wpa_s, data); 2681 break; 2682#endif /* CONFIG_TDLS */ 2683#ifdef CONFIG_WNM 2684 case EVENT_WNM: 2685 wpa_supplicant_event_wnm(wpa_s, data); 2686 break; 2687#endif /* CONFIG_WNM */ 2688#ifdef CONFIG_IEEE80211R 2689 case EVENT_FT_RESPONSE: 2690 wpa_supplicant_event_ft_response(wpa_s, data); 2691 break; 2692#endif /* CONFIG_IEEE80211R */ 2693#ifdef CONFIG_IBSS_RSN 2694 case EVENT_IBSS_RSN_START: 2695 wpa_supplicant_event_ibss_rsn_start(wpa_s, data); 2696 break; 2697#endif /* CONFIG_IBSS_RSN */ 2698 case EVENT_ASSOC_REJECT: 2699 if (data->assoc_reject.bssid) 2700 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 2701 "bssid=" MACSTR " status_code=%u", 2702 MAC2STR(data->assoc_reject.bssid), 2703 data->assoc_reject.status_code); 2704 else 2705 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 2706 "status_code=%u", 2707 data->assoc_reject.status_code); 2708 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2709 sme_event_assoc_reject(wpa_s, data); 2710 else { 2711#ifdef ANDROID_P2P 2712 if(!wpa_s->current_ssid) { 2713 wpa_printf(MSG_ERROR, "current_ssid == NULL"); 2714 break; 2715 } 2716 /* If assoc reject is reported by the driver, then avoid 2717 * waiting for the authentication timeout. Cancel the 2718 * authentication timeout and retry the assoc. 2719 */ 2720 if(wpa_s->current_ssid->assoc_retry++ < 10) { 2721 wpa_printf(MSG_ERROR, "Retrying assoc: %d ", 2722 wpa_s->current_ssid->assoc_retry); 2723 2724 wpa_supplicant_cancel_auth_timeout(wpa_s); 2725 2726 /* Clear the states */ 2727 wpa_sm_notify_disassoc(wpa_s->wpa); 2728 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2729 2730 wpa_s->reassociate = 1; 2731 if (wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE) { 2732 const u8 *bl_bssid = data->assoc_reject.bssid; 2733 if (!bl_bssid || is_zero_ether_addr(bl_bssid)) 2734 bl_bssid = wpa_s->pending_bssid; 2735 wpa_blacklist_add(wpa_s, bl_bssid); 2736 wpa_supplicant_req_scan(wpa_s, 0, 0); 2737 } else { 2738 wpa_supplicant_req_scan(wpa_s, 1, 0); 2739 } 2740 } else if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) { 2741 /* If we ASSOC_REJECT's hits threshold, disable the 2742 * network 2743 */ 2744 wpa_printf(MSG_ERROR, "Assoc retry threshold reached. " 2745 "Disabling the network"); 2746 wpa_s->current_ssid->assoc_retry = 0; 2747 wpa_supplicant_disable_network(wpa_s, wpa_s->current_ssid); 2748 wpas_p2p_group_remove(wpa_s, wpa_s->ifname); 2749 } 2750#else 2751 const u8 *bssid = data->assoc_reject.bssid; 2752 if (bssid == NULL || is_zero_ether_addr(bssid)) 2753 bssid = wpa_s->pending_bssid; 2754 wpas_connection_failed(wpa_s, bssid); 2755 wpa_supplicant_mark_disassoc(wpa_s); 2756#endif /* ANDROID_P2P */ 2757 } 2758 break; 2759 case EVENT_AUTH_TIMED_OUT: 2760 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2761 sme_event_auth_timed_out(wpa_s, data); 2762 break; 2763 case EVENT_ASSOC_TIMED_OUT: 2764 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2765 sme_event_assoc_timed_out(wpa_s, data); 2766 break; 2767 case EVENT_TX_STATUS: 2768 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR 2769 " type=%d stype=%d", 2770 MAC2STR(data->tx_status.dst), 2771 data->tx_status.type, data->tx_status.stype); 2772#ifdef CONFIG_AP 2773 if (wpa_s->ap_iface == NULL) { 2774#ifdef CONFIG_OFFCHANNEL 2775 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 2776 data->tx_status.stype == WLAN_FC_STYPE_ACTION) 2777 offchannel_send_action_tx_status( 2778 wpa_s, data->tx_status.dst, 2779 data->tx_status.data, 2780 data->tx_status.data_len, 2781 data->tx_status.ack ? 2782 OFFCHANNEL_SEND_ACTION_SUCCESS : 2783 OFFCHANNEL_SEND_ACTION_NO_ACK); 2784#endif /* CONFIG_OFFCHANNEL */ 2785 break; 2786 } 2787#endif /* CONFIG_AP */ 2788#ifdef CONFIG_OFFCHANNEL 2789 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" 2790 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst)); 2791 /* 2792 * Catch TX status events for Action frames we sent via group 2793 * interface in GO mode. 2794 */ 2795 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 2796 data->tx_status.stype == WLAN_FC_STYPE_ACTION && 2797 os_memcmp(wpa_s->parent->pending_action_dst, 2798 data->tx_status.dst, ETH_ALEN) == 0) { 2799 offchannel_send_action_tx_status( 2800 wpa_s->parent, data->tx_status.dst, 2801 data->tx_status.data, 2802 data->tx_status.data_len, 2803 data->tx_status.ack ? 2804 OFFCHANNEL_SEND_ACTION_SUCCESS : 2805 OFFCHANNEL_SEND_ACTION_NO_ACK); 2806 break; 2807 } 2808#endif /* CONFIG_OFFCHANNEL */ 2809#ifdef CONFIG_AP 2810 switch (data->tx_status.type) { 2811 case WLAN_FC_TYPE_MGMT: 2812 ap_mgmt_tx_cb(wpa_s, data->tx_status.data, 2813 data->tx_status.data_len, 2814 data->tx_status.stype, 2815 data->tx_status.ack); 2816 break; 2817 case WLAN_FC_TYPE_DATA: 2818 ap_tx_status(wpa_s, data->tx_status.dst, 2819 data->tx_status.data, 2820 data->tx_status.data_len, 2821 data->tx_status.ack); 2822 break; 2823 } 2824#endif /* CONFIG_AP */ 2825 break; 2826#ifdef CONFIG_AP 2827 case EVENT_EAPOL_TX_STATUS: 2828 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst, 2829 data->eapol_tx_status.data, 2830 data->eapol_tx_status.data_len, 2831 data->eapol_tx_status.ack); 2832 break; 2833 case EVENT_DRIVER_CLIENT_POLL_OK: 2834 ap_client_poll_ok(wpa_s, data->client_poll.addr); 2835 break; 2836 case EVENT_RX_FROM_UNKNOWN: 2837 if (wpa_s->ap_iface == NULL) 2838 break; 2839 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr, 2840 data->rx_from_unknown.wds); 2841 break; 2842 case EVENT_CH_SWITCH: 2843 if (!data) 2844 break; 2845 if (!wpa_s->ap_iface) { 2846 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch " 2847 "event in non-AP mode"); 2848 break; 2849 } 2850 2851 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq, 2852 data->ch_switch.ht_enabled, 2853 data->ch_switch.ch_offset); 2854 break; 2855#endif /* CONFIG_AP */ 2856#if defined(CONFIG_AP) || defined(CONFIG_IBSS_RSN) 2857 case EVENT_RX_MGMT: { 2858 u16 fc, stype; 2859 const struct ieee80211_mgmt *mgmt; 2860 2861 mgmt = (const struct ieee80211_mgmt *) 2862 data->rx_mgmt.frame; 2863 fc = le_to_host16(mgmt->frame_control); 2864 stype = WLAN_FC_GET_STYPE(fc); 2865 2866#ifdef CONFIG_AP 2867 if (wpa_s->ap_iface == NULL) { 2868#endif /* CONFIG_AP */ 2869#ifdef CONFIG_P2P 2870 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2871 data->rx_mgmt.frame_len > 24) { 2872 const u8 *src = mgmt->sa; 2873 const u8 *ie = mgmt->u.probe_req.variable; 2874 size_t ie_len = data->rx_mgmt.frame_len - 2875 (mgmt->u.probe_req.variable - 2876 data->rx_mgmt.frame); 2877 wpas_p2p_probe_req_rx( 2878 wpa_s, src, mgmt->da, 2879 mgmt->bssid, ie, ie_len, 2880 data->rx_mgmt.ssi_signal); 2881 break; 2882 } 2883#endif /* CONFIG_P2P */ 2884#ifdef CONFIG_IBSS_RSN 2885 if (stype == WLAN_FC_STYPE_AUTH && 2886 data->rx_mgmt.frame_len >= 30) { 2887 wpa_supplicant_event_ibss_auth(wpa_s, data); 2888 break; 2889 } 2890#endif /* CONFIG_IBSS_RSN */ 2891 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " 2892 "management frame in non-AP mode"); 2893 break; 2894#ifdef CONFIG_AP 2895 } 2896 2897 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2898 data->rx_mgmt.frame_len > 24) { 2899 const u8 *ie = mgmt->u.probe_req.variable; 2900 size_t ie_len = data->rx_mgmt.frame_len - 2901 (mgmt->u.probe_req.variable - 2902 data->rx_mgmt.frame); 2903 2904 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da, 2905 mgmt->bssid, ie, ie_len, 2906 data->rx_mgmt.ssi_signal); 2907 } 2908 2909 ap_mgmt_rx(wpa_s, &data->rx_mgmt); 2910#endif /* CONFIG_AP */ 2911 break; 2912 } 2913#endif /* CONFIG_AP || CONFIG_IBSS_RSN */ 2914 case EVENT_RX_ACTION: 2915 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR 2916 " Category=%u DataLen=%d freq=%d MHz", 2917 MAC2STR(data->rx_action.sa), 2918 data->rx_action.category, (int) data->rx_action.len, 2919 data->rx_action.freq); 2920#ifdef CONFIG_IEEE80211R 2921 if (data->rx_action.category == WLAN_ACTION_FT) { 2922 ft_rx_action(wpa_s, data->rx_action.data, 2923 data->rx_action.len); 2924 break; 2925 } 2926#endif /* CONFIG_IEEE80211R */ 2927#ifdef CONFIG_IEEE80211W 2928#ifdef CONFIG_SME 2929 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) { 2930 sme_sa_query_rx(wpa_s, data->rx_action.sa, 2931 data->rx_action.data, 2932 data->rx_action.len); 2933 break; 2934 } 2935#endif /* CONFIG_SME */ 2936#endif /* CONFIG_IEEE80211W */ 2937#ifdef CONFIG_WNM 2938 if (data->rx_action.category == WLAN_ACTION_WNM) { 2939 ieee802_11_rx_wnm_action(wpa_s, &data->rx_action); 2940 break; 2941 } 2942#endif /* CONFIG_WNM */ 2943#ifdef CONFIG_GAS 2944 if (data->rx_action.category == WLAN_ACTION_PUBLIC && 2945 gas_query_rx(wpa_s->gas, data->rx_action.da, 2946 data->rx_action.sa, data->rx_action.bssid, 2947 data->rx_action.data, data->rx_action.len, 2948 data->rx_action.freq) == 0) 2949 break; 2950#endif /* CONFIG_GAS */ 2951#ifdef CONFIG_TDLS 2952 if (data->rx_action.category == WLAN_ACTION_PUBLIC && 2953 data->rx_action.len >= 4 && 2954 data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) { 2955 wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery " 2956 "Response from " MACSTR, 2957 MAC2STR(data->rx_action.sa)); 2958 break; 2959 } 2960#endif /* CONFIG_TDLS */ 2961#ifdef CONFIG_P2P 2962 wpas_p2p_rx_action(wpa_s, data->rx_action.da, 2963 data->rx_action.sa, 2964 data->rx_action.bssid, 2965 data->rx_action.category, 2966 data->rx_action.data, 2967 data->rx_action.len, data->rx_action.freq); 2968#endif /* CONFIG_P2P */ 2969 break; 2970 case EVENT_RX_PROBE_REQ: 2971 if (data->rx_probe_req.sa == NULL || 2972 data->rx_probe_req.ie == NULL) 2973 break; 2974#ifdef CONFIG_AP 2975 if (wpa_s->ap_iface) { 2976 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], 2977 data->rx_probe_req.sa, 2978 data->rx_probe_req.da, 2979 data->rx_probe_req.bssid, 2980 data->rx_probe_req.ie, 2981 data->rx_probe_req.ie_len, 2982 data->rx_probe_req.ssi_signal); 2983 break; 2984 } 2985#endif /* CONFIG_AP */ 2986#ifdef CONFIG_P2P 2987 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa, 2988 data->rx_probe_req.da, 2989 data->rx_probe_req.bssid, 2990 data->rx_probe_req.ie, 2991 data->rx_probe_req.ie_len, 2992 data->rx_probe_req.ssi_signal); 2993#endif /* CONFIG_P2P */ 2994 break; 2995 case EVENT_REMAIN_ON_CHANNEL: 2996#ifdef CONFIG_OFFCHANNEL 2997 offchannel_remain_on_channel_cb( 2998 wpa_s, data->remain_on_channel.freq, 2999 data->remain_on_channel.duration); 3000#endif /* CONFIG_OFFCHANNEL */ 3001#ifdef CONFIG_P2P 3002 wpas_p2p_remain_on_channel_cb( 3003 wpa_s, data->remain_on_channel.freq, 3004 data->remain_on_channel.duration); 3005#endif /* CONFIG_P2P */ 3006 break; 3007 case EVENT_CANCEL_REMAIN_ON_CHANNEL: 3008#ifdef CONFIG_OFFCHANNEL 3009 offchannel_cancel_remain_on_channel_cb( 3010 wpa_s, data->remain_on_channel.freq); 3011#endif /* CONFIG_OFFCHANNEL */ 3012#ifdef CONFIG_P2P 3013 wpas_p2p_cancel_remain_on_channel_cb( 3014 wpa_s, data->remain_on_channel.freq); 3015#endif /* CONFIG_P2P */ 3016 break; 3017#ifdef CONFIG_P2P 3018 case EVENT_P2P_DEV_FOUND: { 3019 struct p2p_peer_info peer_info; 3020 3021 os_memset(&peer_info, 0, sizeof(peer_info)); 3022 if (data->p2p_dev_found.dev_addr) 3023 os_memcpy(peer_info.p2p_device_addr, 3024 data->p2p_dev_found.dev_addr, ETH_ALEN); 3025 if (data->p2p_dev_found.pri_dev_type) 3026 os_memcpy(peer_info.pri_dev_type, 3027 data->p2p_dev_found.pri_dev_type, 3028 sizeof(peer_info.pri_dev_type)); 3029 if (data->p2p_dev_found.dev_name) 3030 os_strlcpy(peer_info.device_name, 3031 data->p2p_dev_found.dev_name, 3032 sizeof(peer_info.device_name)); 3033 peer_info.config_methods = data->p2p_dev_found.config_methods; 3034 peer_info.dev_capab = data->p2p_dev_found.dev_capab; 3035 peer_info.group_capab = data->p2p_dev_found.group_capab; 3036 3037 /* 3038 * FIX: new_device=1 is not necessarily correct. We should 3039 * maintain a P2P peer database in wpa_supplicant and update 3040 * this information based on whether the peer is truly new. 3041 */ 3042 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1); 3043 break; 3044 } 3045 case EVENT_P2P_GO_NEG_REQ_RX: 3046 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src, 3047 data->p2p_go_neg_req_rx.dev_passwd_id); 3048 break; 3049 case EVENT_P2P_GO_NEG_COMPLETED: 3050 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res); 3051 break; 3052 case EVENT_P2P_PROV_DISC_REQUEST: 3053 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer, 3054 data->p2p_prov_disc_req.config_methods, 3055 data->p2p_prov_disc_req.dev_addr, 3056 data->p2p_prov_disc_req.pri_dev_type, 3057 data->p2p_prov_disc_req.dev_name, 3058 data->p2p_prov_disc_req.supp_config_methods, 3059 data->p2p_prov_disc_req.dev_capab, 3060 data->p2p_prov_disc_req.group_capab, 3061 NULL, 0); 3062 break; 3063 case EVENT_P2P_PROV_DISC_RESPONSE: 3064 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer, 3065 data->p2p_prov_disc_resp.config_methods); 3066 break; 3067 case EVENT_P2P_SD_REQUEST: 3068 wpas_sd_request(wpa_s, data->p2p_sd_req.freq, 3069 data->p2p_sd_req.sa, 3070 data->p2p_sd_req.dialog_token, 3071 data->p2p_sd_req.update_indic, 3072 data->p2p_sd_req.tlvs, 3073 data->p2p_sd_req.tlvs_len); 3074 break; 3075 case EVENT_P2P_SD_RESPONSE: 3076 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa, 3077 data->p2p_sd_resp.update_indic, 3078 data->p2p_sd_resp.tlvs, 3079 data->p2p_sd_resp.tlvs_len); 3080 break; 3081#endif /* CONFIG_P2P */ 3082 case EVENT_EAPOL_RX: 3083 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, 3084 data->eapol_rx.data, 3085 data->eapol_rx.data_len); 3086 break; 3087 case EVENT_SIGNAL_CHANGE: 3088 bgscan_notify_signal_change( 3089 wpa_s, data->signal_change.above_threshold, 3090 data->signal_change.current_signal, 3091 data->signal_change.current_noise, 3092 data->signal_change.current_txrate); 3093 break; 3094 case EVENT_INTERFACE_ENABLED: 3095 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); 3096 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 3097 wpa_supplicant_update_mac_addr(wpa_s); 3098#ifdef CONFIG_AP 3099 if (!wpa_s->ap_iface) { 3100 wpa_supplicant_set_state(wpa_s, 3101 WPA_DISCONNECTED); 3102 wpa_supplicant_req_scan(wpa_s, 0, 0); 3103 } else 3104 wpa_supplicant_set_state(wpa_s, 3105 WPA_COMPLETED); 3106#else /* CONFIG_AP */ 3107 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 3108 wpa_supplicant_req_scan(wpa_s, 0, 0); 3109#endif /* CONFIG_AP */ 3110 } 3111 break; 3112 case EVENT_INTERFACE_DISABLED: 3113 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); 3114 wpa_supplicant_mark_disassoc(wpa_s); 3115 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 3116 break; 3117 case EVENT_CHANNEL_LIST_CHANGED: 3118 if (wpa_s->drv_priv == NULL) 3119 break; /* Ignore event during drv initialization */ 3120 3121 free_hw_features(wpa_s); 3122 wpa_s->hw.modes = wpa_drv_get_hw_feature_data( 3123 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags); 3124 3125#ifdef CONFIG_P2P 3126 wpas_p2p_update_channel_list(wpa_s); 3127#endif /* CONFIG_P2P */ 3128 break; 3129 case EVENT_INTERFACE_UNAVAILABLE: 3130#ifdef CONFIG_P2P 3131 wpas_p2p_interface_unavailable(wpa_s); 3132#endif /* CONFIG_P2P */ 3133 break; 3134 case EVENT_BEST_CHANNEL: 3135 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " 3136 "(%d %d %d)", 3137 data->best_chan.freq_24, data->best_chan.freq_5, 3138 data->best_chan.freq_overall); 3139 wpa_s->best_24_freq = data->best_chan.freq_24; 3140 wpa_s->best_5_freq = data->best_chan.freq_5; 3141 wpa_s->best_overall_freq = data->best_chan.freq_overall; 3142#ifdef CONFIG_P2P 3143 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, 3144 data->best_chan.freq_5, 3145 data->best_chan.freq_overall); 3146#endif /* CONFIG_P2P */ 3147 break; 3148 case EVENT_UNPROT_DEAUTH: 3149 wpa_supplicant_event_unprot_deauth(wpa_s, 3150 &data->unprot_deauth); 3151 break; 3152 case EVENT_UNPROT_DISASSOC: 3153 wpa_supplicant_event_unprot_disassoc(wpa_s, 3154 &data->unprot_disassoc); 3155 break; 3156 case EVENT_STATION_LOW_ACK: 3157#ifdef CONFIG_AP 3158 if (wpa_s->ap_iface && data) 3159 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], 3160 data->low_ack.addr); 3161#endif /* CONFIG_AP */ 3162#ifdef CONFIG_TDLS 3163 if (data) 3164 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr); 3165#endif /* CONFIG_TDLS */ 3166 break; 3167 case EVENT_IBSS_PEER_LOST: 3168#ifdef CONFIG_IBSS_RSN 3169 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer); 3170#endif /* CONFIG_IBSS_RSN */ 3171 break; 3172 case EVENT_DRIVER_GTK_REKEY: 3173 if (os_memcmp(data->driver_gtk_rekey.bssid, 3174 wpa_s->bssid, ETH_ALEN)) 3175 break; 3176 if (!wpa_s->wpa) 3177 break; 3178 wpa_sm_update_replay_ctr(wpa_s->wpa, 3179 data->driver_gtk_rekey.replay_ctr); 3180 break; 3181 case EVENT_SCHED_SCAN_STOPPED: 3182 wpa_s->sched_scanning = 0; 3183 wpa_supplicant_notify_scanning(wpa_s, 0); 3184 3185 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 3186 break; 3187 3188 /* 3189 * If we timed out, start a new sched scan to continue 3190 * searching for more SSIDs. 3191 */ 3192 if (wpa_s->sched_scan_timed_out) 3193 wpa_supplicant_req_sched_scan(wpa_s); 3194 break; 3195 case EVENT_WPS_BUTTON_PUSHED: 3196#ifdef CONFIG_WPS 3197 wpas_wps_start_pbc(wpa_s, NULL, 0); 3198#endif /* CONFIG_WPS */ 3199 break; 3200 case EVENT_CONNECT_FAILED_REASON: 3201#ifdef CONFIG_AP 3202 if (!wpa_s->ap_iface || !data) 3203 break; 3204 hostapd_event_connect_failed_reason( 3205 wpa_s->ap_iface->bss[0], 3206 data->connect_failed_reason.addr, 3207 data->connect_failed_reason.code); 3208#endif /* CONFIG_AP */ 3209 break; 3210 default: 3211 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); 3212 break; 3213 } 3214} 3215