events.c revision 4b9d52f502481b258fec743c03a5e957e5605afc
1/* 2 * WPA Supplicant - Driver event processing 3 * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9#include "includes.h" 10 11#include "common.h" 12#include "eapol_supp/eapol_supp_sm.h" 13#include "rsn_supp/wpa.h" 14#include "eloop.h" 15#include "config.h" 16#include "l2_packet/l2_packet.h" 17#include "wpa_supplicant_i.h" 18#include "driver_i.h" 19#include "pcsc_funcs.h" 20#include "rsn_supp/preauth.h" 21#include "rsn_supp/pmksa_cache.h" 22#include "common/wpa_ctrl.h" 23#include "eap_peer/eap.h" 24#include "ap/hostapd.h" 25#include "p2p/p2p.h" 26#include "wnm_sta.h" 27#include "notify.h" 28#include "common/ieee802_11_defs.h" 29#include "common/ieee802_11_common.h" 30#include "crypto/random.h" 31#include "blacklist.h" 32#include "wpas_glue.h" 33#include "wps_supplicant.h" 34#include "ibss_rsn.h" 35#include "sme.h" 36#include "gas_query.h" 37#include "p2p_supplicant.h" 38#include "bgscan.h" 39#include "autoscan.h" 40#include "ap.h" 41#include "bss.h" 42#include "scan.h" 43#include "offchannel.h" 44#include "interworking.h" 45 46 47static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s); 48 49 50static int wpas_temp_disabled(struct wpa_supplicant *wpa_s, 51 struct wpa_ssid *ssid) 52{ 53 struct os_time now; 54 55 if (ssid == NULL || ssid->disabled_until.sec == 0) 56 return 0; 57 58 os_get_time(&now); 59 if (ssid->disabled_until.sec > now.sec) 60 return ssid->disabled_until.sec - now.sec; 61 62 wpas_clear_temp_disabled(wpa_s, ssid, 0); 63 64 return 0; 65} 66 67 68static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s) 69{ 70 struct wpa_ssid *ssid, *old_ssid; 71 int res; 72 73 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) 74 return 0; 75 76 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association " 77 "information"); 78 ssid = wpa_supplicant_get_ssid(wpa_s); 79 if (ssid == NULL) { 80 wpa_msg(wpa_s, MSG_INFO, 81 "No network configuration found for the current AP"); 82 return -1; 83 } 84 85 if (wpas_network_disabled(wpa_s, ssid)) { 86 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled"); 87 return -1; 88 } 89 90 if (disallowed_bssid(wpa_s, wpa_s->bssid) || 91 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) { 92 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed"); 93 return -1; 94 } 95 96 res = wpas_temp_disabled(wpa_s, ssid); 97 if (res > 0) { 98 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily " 99 "disabled for %d second(s)", res); 100 return -1; 101 } 102 103 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the " 104 "current AP"); 105 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { 106 u8 wpa_ie[80]; 107 size_t wpa_ie_len = sizeof(wpa_ie); 108 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, 109 wpa_ie, &wpa_ie_len) < 0) 110 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites"); 111 } else { 112 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); 113 } 114 115 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) 116 eapol_sm_invalidate_cached_session(wpa_s->eapol); 117 old_ssid = wpa_s->current_ssid; 118 wpa_s->current_ssid = ssid; 119 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); 120 wpa_supplicant_initiate_eapol(wpa_s); 121 if (old_ssid != wpa_s->current_ssid) 122 wpas_notify_network_changed(wpa_s); 123 124 return 0; 125} 126 127 128void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx) 129{ 130 struct wpa_supplicant *wpa_s = eloop_ctx; 131 132 if (wpa_s->countermeasures) { 133 wpa_s->countermeasures = 0; 134 wpa_drv_set_countermeasures(wpa_s, 0); 135 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped"); 136 wpa_supplicant_req_scan(wpa_s, 0, 0); 137 } 138} 139 140 141void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s) 142{ 143 int bssid_changed; 144 145 wnm_bss_keep_alive_deinit(wpa_s); 146 147#ifdef CONFIG_IBSS_RSN 148 ibss_rsn_deinit(wpa_s->ibss_rsn); 149 wpa_s->ibss_rsn = NULL; 150#endif /* CONFIG_IBSS_RSN */ 151 152#ifdef CONFIG_AP 153 wpa_supplicant_ap_deinit(wpa_s); 154#endif /* CONFIG_AP */ 155 156 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 157 return; 158 159 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 160#ifdef ANDROID 161 wpa_s->conf->ap_scan = DEFAULT_AP_SCAN; 162#endif 163 bssid_changed = !is_zero_ether_addr(wpa_s->bssid); 164 os_memset(wpa_s->bssid, 0, ETH_ALEN); 165 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 166#ifdef CONFIG_SME 167 wpa_s->sme.prev_bssid_set = 0; 168#endif /* CONFIG_SME */ 169#ifdef CONFIG_P2P 170 os_memset(wpa_s->go_dev_addr, 0, ETH_ALEN); 171#endif /* CONFIG_P2P */ 172 wpa_s->current_bss = NULL; 173 wpa_s->assoc_freq = 0; 174#ifdef CONFIG_IEEE80211R 175#ifdef CONFIG_SME 176 if (wpa_s->sme.ft_ies) 177 sme_update_ft_ies(wpa_s, NULL, NULL, 0); 178#endif /* CONFIG_SME */ 179#endif /* CONFIG_IEEE80211R */ 180 181 if (bssid_changed) 182 wpas_notify_bssid_changed(wpa_s); 183 184 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 185 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 186 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 187 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 188 wpa_s->ap_ies_from_associnfo = 0; 189 wpa_s->current_ssid = NULL; 190 wpa_s->key_mgmt = 0; 191} 192 193 194static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s) 195{ 196 struct wpa_ie_data ie; 197 int pmksa_set = -1; 198 size_t i; 199 200 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 || 201 ie.pmkid == NULL) 202 return; 203 204 for (i = 0; i < ie.num_pmkid; i++) { 205 pmksa_set = pmksa_cache_set_current(wpa_s->wpa, 206 ie.pmkid + i * PMKID_LEN, 207 NULL, NULL, 0); 208 if (pmksa_set == 0) { 209 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); 210 break; 211 } 212 } 213 214 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from " 215 "PMKSA cache", pmksa_set == 0 ? "" : "not "); 216} 217 218 219static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s, 220 union wpa_event_data *data) 221{ 222 if (data == NULL) { 223 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate " 224 "event"); 225 return; 226 } 227 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR 228 " index=%d preauth=%d", 229 MAC2STR(data->pmkid_candidate.bssid), 230 data->pmkid_candidate.index, 231 data->pmkid_candidate.preauth); 232 233 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid, 234 data->pmkid_candidate.index, 235 data->pmkid_candidate.preauth); 236} 237 238 239static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s) 240{ 241 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 242 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) 243 return 0; 244 245#ifdef IEEE8021X_EAPOL 246 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA && 247 wpa_s->current_ssid && 248 !(wpa_s->current_ssid->eapol_flags & 249 (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 250 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) { 251 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either 252 * plaintext or static WEP keys). */ 253 return 0; 254 } 255#endif /* IEEE8021X_EAPOL */ 256 257 return 1; 258} 259 260 261/** 262 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC 263 * @wpa_s: pointer to wpa_supplicant data 264 * @ssid: Configuration data for the network 265 * Returns: 0 on success, -1 on failure 266 * 267 * This function is called when starting authentication with a network that is 268 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA). 269 */ 270int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s, 271 struct wpa_ssid *ssid) 272{ 273#ifdef IEEE8021X_EAPOL 274#ifdef PCSC_FUNCS 275 int aka = 0, sim = 0, type; 276 277 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL) 278 return 0; 279 280 if (ssid->eap.eap_methods == NULL) { 281 sim = 1; 282 aka = 1; 283 } else { 284 struct eap_method_type *eap = ssid->eap.eap_methods; 285 while (eap->vendor != EAP_VENDOR_IETF || 286 eap->method != EAP_TYPE_NONE) { 287 if (eap->vendor == EAP_VENDOR_IETF) { 288 if (eap->method == EAP_TYPE_SIM) 289 sim = 1; 290 else if (eap->method == EAP_TYPE_AKA || 291 eap->method == EAP_TYPE_AKA_PRIME) 292 aka = 1; 293 } 294 eap++; 295 } 296 } 297 298 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL) 299 sim = 0; 300 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL && 301 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) == 302 NULL) 303 aka = 0; 304 305 if (!sim && !aka) { 306 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to " 307 "use SIM, but neither EAP-SIM nor EAP-AKA are " 308 "enabled"); 309 return 0; 310 } 311 312 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM " 313 "(sim=%d aka=%d) - initialize PCSC", sim, aka); 314 if (sim && aka) 315 type = SCARD_TRY_BOTH; 316 else if (aka) 317 type = SCARD_USIM_ONLY; 318 else 319 type = SCARD_GSM_SIM_ONLY; 320 321 wpa_s->scard = scard_init(type, NULL); 322 if (wpa_s->scard == NULL) { 323 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM " 324 "(pcsc-lite)"); 325 return -1; 326 } 327 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); 328 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); 329#endif /* PCSC_FUNCS */ 330#endif /* IEEE8021X_EAPOL */ 331 332 return 0; 333} 334 335 336#ifndef CONFIG_NO_SCAN_PROCESSING 337static int wpa_supplicant_match_privacy(struct wpa_bss *bss, 338 struct wpa_ssid *ssid) 339{ 340 int i, privacy = 0; 341 342 if (ssid->mixed_cell) 343 return 1; 344 345#ifdef CONFIG_WPS 346 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) 347 return 1; 348#endif /* CONFIG_WPS */ 349 350 for (i = 0; i < NUM_WEP_KEYS; i++) { 351 if (ssid->wep_key_len[i]) { 352 privacy = 1; 353 break; 354 } 355 } 356#ifdef IEEE8021X_EAPOL 357 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 358 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 359 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) 360 privacy = 1; 361#endif /* IEEE8021X_EAPOL */ 362 363 if (wpa_key_mgmt_wpa(ssid->key_mgmt)) 364 privacy = 1; 365 366 if (bss->caps & IEEE80211_CAP_PRIVACY) 367 return privacy; 368 return !privacy; 369} 370 371 372static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s, 373 struct wpa_ssid *ssid, 374 struct wpa_bss *bss) 375{ 376 struct wpa_ie_data ie; 377 int proto_match = 0; 378 const u8 *rsn_ie, *wpa_ie; 379 int ret; 380 int wep_ok; 381 382 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss); 383 if (ret >= 0) 384 return ret; 385 386 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */ 387 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) && 388 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 389 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) || 390 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)); 391 392 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 393 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) { 394 proto_match++; 395 396 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) { 397 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse " 398 "failed"); 399 break; 400 } 401 402 if (wep_ok && 403 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 404 { 405 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 406 "in RSN IE"); 407 return 1; 408 } 409 410 if (!(ie.proto & ssid->proto)) { 411 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto " 412 "mismatch"); 413 break; 414 } 415 416 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 417 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK " 418 "cipher mismatch"); 419 break; 420 } 421 422 if (!(ie.group_cipher & ssid->group_cipher)) { 423 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK " 424 "cipher mismatch"); 425 break; 426 } 427 428 if (!(ie.key_mgmt & ssid->key_mgmt)) { 429 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt " 430 "mismatch"); 431 break; 432 } 433 434#ifdef CONFIG_IEEE80211W 435 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 436 (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ? 437 wpa_s->conf->pmf : ssid->ieee80211w) == 438 MGMT_FRAME_PROTECTION_REQUIRED) { 439 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt " 440 "frame protection"); 441 break; 442 } 443#endif /* CONFIG_IEEE80211W */ 444 445 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE"); 446 return 1; 447 } 448 449 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 450 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) { 451 proto_match++; 452 453 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) { 454 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse " 455 "failed"); 456 break; 457 } 458 459 if (wep_ok && 460 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 461 { 462 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 463 "in WPA IE"); 464 return 1; 465 } 466 467 if (!(ie.proto & ssid->proto)) { 468 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto " 469 "mismatch"); 470 break; 471 } 472 473 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 474 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK " 475 "cipher mismatch"); 476 break; 477 } 478 479 if (!(ie.group_cipher & ssid->group_cipher)) { 480 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK " 481 "cipher mismatch"); 482 break; 483 } 484 485 if (!(ie.key_mgmt & ssid->key_mgmt)) { 486 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt " 487 "mismatch"); 488 break; 489 } 490 491 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE"); 492 return 1; 493 } 494 495 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie && 496 !rsn_ie) { 497 wpa_dbg(wpa_s, MSG_DEBUG, " allow for non-WPA IEEE 802.1X"); 498 return 1; 499 } 500 501 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) && 502 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) { 503 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match"); 504 return 0; 505 } 506 507 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) { 508 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2"); 509 return 1; 510 } 511 512 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with " 513 "WPA/WPA2"); 514 515 return 0; 516} 517 518 519static int freq_allowed(int *freqs, int freq) 520{ 521 int i; 522 523 if (freqs == NULL) 524 return 1; 525 526 for (i = 0; freqs[i]; i++) 527 if (freqs[i] == freq) 528 return 1; 529 return 0; 530} 531 532 533static int ht_supported(const struct hostapd_hw_modes *mode) 534{ 535 if (!(mode->flags & HOSTAPD_MODE_FLAG_HT_INFO_KNOWN)) { 536 /* 537 * The driver did not indicate whether it supports HT. Assume 538 * it does to avoid connection issues. 539 */ 540 return 1; 541 } 542 543 /* 544 * IEEE Std 802.11n-2009 20.1.1: 545 * An HT non-AP STA shall support all EQM rates for one spatial stream. 546 */ 547 return mode->mcs_set[0] == 0xff; 548} 549 550 551static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss) 552{ 553 const struct hostapd_hw_modes *mode = NULL, *modes; 554 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES }; 555 const u8 *rate_ie; 556 int i, j, k; 557 558 if (bss->freq == 0) 559 return 1; /* Cannot do matching without knowing band */ 560 561 modes = wpa_s->hw.modes; 562 if (modes == NULL) { 563 /* 564 * The driver does not provide any additional information 565 * about the utilized hardware, so allow the connection attempt 566 * to continue. 567 */ 568 return 1; 569 } 570 571 for (i = 0; i < wpa_s->hw.num_modes; i++) { 572 for (j = 0; j < modes[i].num_channels; j++) { 573 int freq = modes[i].channels[j].freq; 574 if (freq == bss->freq) { 575 if (mode && 576 mode->mode == HOSTAPD_MODE_IEEE80211G) 577 break; /* do not allow 802.11b replace 578 * 802.11g */ 579 mode = &modes[i]; 580 break; 581 } 582 } 583 } 584 585 if (mode == NULL) 586 return 0; 587 588 for (i = 0; i < (int) sizeof(scan_ie); i++) { 589 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]); 590 if (rate_ie == NULL) 591 continue; 592 593 for (j = 2; j < rate_ie[1] + 2; j++) { 594 int flagged = !!(rate_ie[j] & 0x80); 595 int r = (rate_ie[j] & 0x7f) * 5; 596 597 /* 598 * IEEE Std 802.11n-2009 7.3.2.2: 599 * The new BSS Membership selector value is encoded 600 * like a legacy basic rate, but it is not a rate and 601 * only indicates if the BSS members are required to 602 * support the mandatory features of Clause 20 [HT PHY] 603 * in order to join the BSS. 604 */ 605 if (flagged && ((rate_ie[j] & 0x7f) == 606 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) { 607 if (!ht_supported(mode)) { 608 wpa_dbg(wpa_s, MSG_DEBUG, 609 " hardware does not support " 610 "HT PHY"); 611 return 0; 612 } 613 continue; 614 } 615 616 if (!flagged) 617 continue; 618 619 /* check for legacy basic rates */ 620 for (k = 0; k < mode->num_rates; k++) { 621 if (mode->rates[k] == r) 622 break; 623 } 624 if (k == mode->num_rates) { 625 /* 626 * IEEE Std 802.11-2007 7.3.2.2 demands that in 627 * order to join a BSS all required rates 628 * have to be supported by the hardware. 629 */ 630 wpa_dbg(wpa_s, MSG_DEBUG, " hardware does " 631 "not support required rate %d.%d Mbps", 632 r / 10, r % 10); 633 return 0; 634 } 635 } 636 } 637 638 return 1; 639} 640 641 642static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s, 643 int i, struct wpa_bss *bss, 644 struct wpa_ssid *group) 645{ 646 u8 wpa_ie_len, rsn_ie_len; 647 int wpa; 648 struct wpa_blacklist *e; 649 const u8 *ie; 650 struct wpa_ssid *ssid; 651 652 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 653 wpa_ie_len = ie ? ie[1] : 0; 654 655 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 656 rsn_ie_len = ie ? ie[1] : 0; 657 658 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' " 659 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s", 660 i, MAC2STR(bss->bssid), wpa_ssid_txt(bss->ssid, bss->ssid_len), 661 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, 662 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : ""); 663 664 e = wpa_blacklist_get(wpa_s, bss->bssid); 665 if (e) { 666 int limit = 1; 667 if (wpa_supplicant_enabled_networks(wpa_s) == 1) { 668 /* 669 * When only a single network is enabled, we can 670 * trigger blacklisting on the first failure. This 671 * should not be done with multiple enabled networks to 672 * avoid getting forced to move into a worse ESS on 673 * single error if there are no other BSSes of the 674 * current ESS. 675 */ 676 limit = 0; 677 } 678 if (e->count > limit) { 679 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 680 "(count=%d limit=%d)", e->count, limit); 681 return NULL; 682 } 683 } 684 685 if (bss->ssid_len == 0) { 686 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known"); 687 return NULL; 688 } 689 690 if (disallowed_bssid(wpa_s, bss->bssid)) { 691 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed"); 692 return NULL; 693 } 694 695 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) { 696 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed"); 697 return NULL; 698 } 699 700 wpa = wpa_ie_len > 0 || rsn_ie_len > 0; 701 702 for (ssid = group; ssid; ssid = ssid->pnext) { 703 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0); 704 int res; 705 706 if (wpas_network_disabled(wpa_s, ssid)) { 707 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled"); 708 continue; 709 } 710 711 res = wpas_temp_disabled(wpa_s, ssid); 712 if (res > 0) { 713 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled " 714 "temporarily for %d second(s)", res); 715 continue; 716 } 717 718#ifdef CONFIG_WPS 719 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) { 720 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 721 "(WPS)"); 722 continue; 723 } 724 725 if (wpa && ssid->ssid_len == 0 && 726 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 727 check_ssid = 0; 728 729 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 730 /* Only allow wildcard SSID match if an AP 731 * advertises active WPS operation that matches 732 * with our mode. */ 733 check_ssid = 1; 734 if (ssid->ssid_len == 0 && 735 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 736 check_ssid = 0; 737 } 738#endif /* CONFIG_WPS */ 739 740 if (ssid->bssid_set && ssid->ssid_len == 0 && 741 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0) 742 check_ssid = 0; 743 744 if (check_ssid && 745 (bss->ssid_len != ssid->ssid_len || 746 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) { 747 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch"); 748 continue; 749 } 750 751 if (ssid->bssid_set && 752 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) { 753 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch"); 754 continue; 755 } 756 757 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss)) 758 continue; 759 760 if (!wpa && 761 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 762 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) && 763 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) { 764 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network " 765 "not allowed"); 766 continue; 767 } 768 769 if (!wpa_supplicant_match_privacy(bss, ssid)) { 770 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy " 771 "mismatch"); 772 continue; 773 } 774 775 if (bss->caps & IEEE80211_CAP_IBSS) { 776 wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) " 777 "network"); 778 continue; 779 } 780 781 if (!freq_allowed(ssid->freq_list, bss->freq)) { 782 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not " 783 "allowed"); 784 continue; 785 } 786 787 if (!rate_match(wpa_s, bss)) { 788 wpa_dbg(wpa_s, MSG_DEBUG, " skip - rate sets do " 789 "not match"); 790 continue; 791 } 792 793#ifdef CONFIG_P2P 794 /* 795 * TODO: skip the AP if its P2P IE has Group Formation 796 * bit set in the P2P Group Capability Bitmap and we 797 * are not in Group Formation with that device. 798 */ 799#endif /* CONFIG_P2P */ 800 801 /* Matching configuration found */ 802 return ssid; 803 } 804 805 /* No matching configuration found */ 806 return NULL; 807} 808 809 810static struct wpa_bss * 811wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, 812 struct wpa_ssid *group, 813 struct wpa_ssid **selected_ssid) 814{ 815 unsigned int i; 816 817 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d", 818 group->priority); 819 820 for (i = 0; i < wpa_s->last_scan_res_used; i++) { 821 struct wpa_bss *bss = wpa_s->last_scan_res[i]; 822 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group); 823 if (!*selected_ssid) 824 continue; 825 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR 826 " ssid='%s'", 827 MAC2STR(bss->bssid), 828 wpa_ssid_txt(bss->ssid, bss->ssid_len)); 829 return bss; 830 } 831 832 return NULL; 833} 834 835 836static struct wpa_bss * 837wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s, 838 struct wpa_ssid **selected_ssid) 839{ 840 struct wpa_bss *selected = NULL; 841 int prio; 842 843 if (wpa_s->last_scan_res == NULL || 844 wpa_s->last_scan_res_used == 0) 845 return NULL; /* no scan results from last update */ 846 847 while (selected == NULL) { 848 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 849 selected = wpa_supplicant_select_bss( 850 wpa_s, wpa_s->conf->pssid[prio], 851 selected_ssid); 852 if (selected) 853 break; 854 } 855 856 if (selected == NULL && wpa_s->blacklist && 857 !wpa_s->countermeasures) { 858 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear " 859 "blacklist and try again"); 860 wpa_blacklist_clear(wpa_s); 861 wpa_s->blacklist_cleared++; 862 } else if (selected == NULL) 863 break; 864 } 865 866 return selected; 867} 868 869 870static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s, 871 int timeout_sec, int timeout_usec) 872{ 873 if (!wpa_supplicant_enabled_networks(wpa_s)) { 874 /* 875 * No networks are enabled; short-circuit request so 876 * we don't wait timeout seconds before transitioning 877 * to INACTIVE state. 878 */ 879 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request " 880 "since there are no enabled networks"); 881 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); 882#ifdef CONFIG_P2P 883 wpa_s->sta_scan_pending = 0; 884#endif /* CONFIG_P2P */ 885 return; 886 } 887 888 wpa_s->scan_for_connection = 1; 889 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec); 890} 891 892 893int wpa_supplicant_connect(struct wpa_supplicant *wpa_s, 894 struct wpa_bss *selected, 895 struct wpa_ssid *ssid) 896{ 897 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) { 898 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP 899 "PBC session overlap"); 900#ifdef CONFIG_P2P 901 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1) 902 return -1; 903#endif /* CONFIG_P2P */ 904 905#ifdef CONFIG_WPS 906 wpas_wps_cancel(wpa_s); 907#endif /* CONFIG_WPS */ 908 return -1; 909 } 910 911 /* 912 * Do not trigger new association unless the BSSID has changed or if 913 * reassociation is requested. If we are in process of associating with 914 * the selected BSSID, do not trigger new attempt. 915 */ 916 if (wpa_s->reassociate || 917 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 && 918 ((wpa_s->wpa_state != WPA_ASSOCIATING && 919 wpa_s->wpa_state != WPA_AUTHENTICATING) || 920 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) != 921 0))) { 922 if (wpa_supplicant_scard_init(wpa_s, ssid)) { 923 wpa_supplicant_req_new_scan(wpa_s, 10, 0); 924 return 0; 925 } 926 wpa_msg(wpa_s, MSG_DEBUG, "Request association: " 927 "reassociate: %d selected: "MACSTR " bssid: " MACSTR 928 " pending: " MACSTR " wpa_state: %s", 929 wpa_s->reassociate, MAC2STR(selected->bssid), 930 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), 931 wpa_supplicant_state_txt(wpa_s->wpa_state)); 932 wpa_supplicant_associate(wpa_s, selected, ssid); 933 } else { 934 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the " 935 "selected AP"); 936 } 937 938 return 0; 939} 940 941 942static struct wpa_ssid * 943wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s) 944{ 945 int prio; 946 struct wpa_ssid *ssid; 947 948 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 949 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext) 950 { 951 if (wpas_network_disabled(wpa_s, ssid)) 952 continue; 953 if (ssid->mode == IEEE80211_MODE_IBSS || 954 ssid->mode == IEEE80211_MODE_AP) 955 return ssid; 956 } 957 } 958 return NULL; 959} 960 961 962/* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based 963 * on BSS added and BSS changed events */ 964static void wpa_supplicant_rsn_preauth_scan_results( 965 struct wpa_supplicant *wpa_s) 966{ 967 struct wpa_bss *bss; 968 969 if (rsn_preauth_scan_results(wpa_s->wpa) < 0) 970 return; 971 972 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 973 const u8 *ssid, *rsn; 974 975 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID); 976 if (ssid == NULL) 977 continue; 978 979 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); 980 if (rsn == NULL) 981 continue; 982 983 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn); 984 } 985 986} 987 988 989static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s, 990 struct wpa_bss *selected, 991 struct wpa_ssid *ssid) 992{ 993 struct wpa_bss *current_bss = NULL; 994 int min_diff; 995 996 if (wpa_s->reassociate) 997 return 1; /* explicit request to reassociate */ 998 if (wpa_s->wpa_state < WPA_ASSOCIATED) 999 return 1; /* we are not associated; continue */ 1000 if (wpa_s->current_ssid == NULL) 1001 return 1; /* unknown current SSID */ 1002 if (wpa_s->current_ssid != ssid) 1003 return 1; /* different network block */ 1004 1005 if (wpas_driver_bss_selection(wpa_s)) 1006 return 0; /* Driver-based roaming */ 1007 1008 if (wpa_s->current_ssid->ssid) 1009 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid, 1010 wpa_s->current_ssid->ssid, 1011 wpa_s->current_ssid->ssid_len); 1012 if (!current_bss) 1013 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid); 1014 1015 if (!current_bss) 1016 return 1; /* current BSS not seen in scan results */ 1017 1018 if (current_bss == selected) 1019 return 0; 1020 1021 if (selected->last_update_idx > current_bss->last_update_idx) 1022 return 1; /* current BSS not seen in the last scan */ 1023 1024#ifndef CONFIG_NO_ROAMING 1025 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation"); 1026 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d", 1027 MAC2STR(current_bss->bssid), current_bss->level); 1028 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d", 1029 MAC2STR(selected->bssid), selected->level); 1030 1031 if (wpa_s->current_ssid->bssid_set && 1032 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) == 1033 0) { 1034 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS " 1035 "has preferred BSSID"); 1036 return 1; 1037 } 1038 1039 if (current_bss->level < 0 && current_bss->level > selected->level) { 1040 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better " 1041 "signal level"); 1042 return 0; 1043 } 1044 1045 min_diff = 2; 1046 if (current_bss->level < 0) { 1047 if (current_bss->level < -85) 1048 min_diff = 1; 1049 else if (current_bss->level < -80) 1050 min_diff = 2; 1051 else if (current_bss->level < -75) 1052 min_diff = 3; 1053 else if (current_bss->level < -70) 1054 min_diff = 4; 1055 else 1056 min_diff = 5; 1057 } 1058 if (abs(current_bss->level - selected->level) < min_diff) { 1059 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference " 1060 "in signal level"); 1061 return 0; 1062 } 1063 1064 return 1; 1065#else /* CONFIG_NO_ROAMING */ 1066 return 0; 1067#endif /* CONFIG_NO_ROAMING */ 1068} 1069 1070 1071/* Return != 0 if no scan results could be fetched or if scan results should not 1072 * be shared with other virtual interfaces. */ 1073#ifdef ANDROID_P2P 1074static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1075 union wpa_event_data *data, int suppress_event) 1076#else 1077static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1078 union wpa_event_data *data) 1079#endif 1080{ 1081 struct wpa_scan_results *scan_res; 1082 int ap = 0; 1083#ifndef CONFIG_NO_RANDOM_POOL 1084 size_t i, num; 1085#endif /* CONFIG_NO_RANDOM_POOL */ 1086 1087#ifdef CONFIG_AP 1088 if (wpa_s->ap_iface) 1089 ap = 1; 1090#endif /* CONFIG_AP */ 1091 1092 wpa_supplicant_notify_scanning(wpa_s, 0); 1093 1094#ifdef CONFIG_P2P 1095 if (wpa_s->global->p2p_cb_on_scan_complete && 1096 !wpa_s->global->p2p_disabled && 1097 wpa_s->global->p2p != NULL && !wpa_s->sta_scan_pending && 1098 !wpa_s->scan_res_handler) { 1099 wpa_s->global->p2p_cb_on_scan_complete = 0; 1100 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) { 1101 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation " 1102 "stopped scan processing"); 1103 wpa_s->sta_scan_pending = 1; 1104 wpa_supplicant_req_scan(wpa_s, 5, 0); 1105 return -1; 1106 } 1107 } 1108 wpa_s->sta_scan_pending = 0; 1109#endif /* CONFIG_P2P */ 1110 1111 scan_res = wpa_supplicant_get_scan_results(wpa_s, 1112 data ? &data->scan_info : 1113 NULL, 1); 1114 if (scan_res == NULL) { 1115 if (wpa_s->conf->ap_scan == 2 || ap || 1116 wpa_s->scan_res_handler == scan_only_handler) 1117 return -1; 1118 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try " 1119 "scanning again"); 1120 wpa_supplicant_req_new_scan(wpa_s, 1, 0); 1121 return -1; 1122 } 1123 1124#ifndef CONFIG_NO_RANDOM_POOL 1125 num = scan_res->num; 1126 if (num > 10) 1127 num = 10; 1128 for (i = 0; i < num; i++) { 1129 u8 buf[5]; 1130 struct wpa_scan_res *res = scan_res->res[i]; 1131 buf[0] = res->bssid[5]; 1132 buf[1] = res->qual & 0xff; 1133 buf[2] = res->noise & 0xff; 1134 buf[3] = res->level & 0xff; 1135 buf[4] = res->tsf & 0xff; 1136 random_add_randomness(buf, sizeof(buf)); 1137 } 1138#endif /* CONFIG_NO_RANDOM_POOL */ 1139 1140 if (wpa_s->scan_res_handler) { 1141 void (*scan_res_handler)(struct wpa_supplicant *wpa_s, 1142 struct wpa_scan_results *scan_res); 1143 1144 scan_res_handler = wpa_s->scan_res_handler; 1145 wpa_s->scan_res_handler = NULL; 1146 scan_res_handler(wpa_s, scan_res); 1147 1148 wpa_scan_results_free(scan_res); 1149 return -2; 1150 } 1151 1152 if (ap) { 1153 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode"); 1154#ifdef CONFIG_AP 1155 if (wpa_s->ap_iface->scan_cb) 1156 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface); 1157#endif /* CONFIG_AP */ 1158 wpa_scan_results_free(scan_res); 1159 return 0; 1160 } 1161#ifdef ANDROID_P2P 1162 if(!suppress_event) 1163 { 1164 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available"); 1165 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); 1166 wpas_notify_scan_results(wpa_s); 1167 } 1168#else 1169 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available"); 1170 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); 1171 wpas_notify_scan_results(wpa_s); 1172#endif 1173 1174 wpas_notify_scan_done(wpa_s, 1); 1175 1176 if (sme_proc_obss_scan(wpa_s) > 0) { 1177 wpa_scan_results_free(scan_res); 1178 return 0; 1179 } 1180 1181 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) { 1182 wpa_scan_results_free(scan_res); 1183 return 0; 1184 } 1185 1186 if (autoscan_notify_scan(wpa_s, scan_res)) { 1187 wpa_scan_results_free(scan_res); 1188 return 0; 1189 } 1190 1191 if (wpa_s->disconnected) { 1192 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 1193 wpa_scan_results_free(scan_res); 1194 return 0; 1195 } 1196 1197 if (!wpas_driver_bss_selection(wpa_s) && 1198 bgscan_notify_scan(wpa_s, scan_res) == 1) { 1199 wpa_scan_results_free(scan_res); 1200 return 0; 1201 } 1202 1203 wpas_wps_update_ap_info(wpa_s, scan_res); 1204 1205 wpa_scan_results_free(scan_res); 1206 1207 return wpas_select_network_from_last_scan(wpa_s); 1208} 1209 1210 1211static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s) 1212{ 1213 struct wpa_bss *selected; 1214 struct wpa_ssid *ssid = NULL; 1215 1216 selected = wpa_supplicant_pick_network(wpa_s, &ssid); 1217 1218 if (selected) { 1219 int skip; 1220 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid); 1221 if (skip) { 1222 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1223 return 0; 1224 } 1225 1226 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) { 1227 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed"); 1228 return -1; 1229 } 1230 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1231 /* 1232 * Do not notify other virtual radios of scan results since we do not 1233 * want them to start other associations at the same time. 1234 */ 1235 return 1; 1236 } else { 1237 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found"); 1238 ssid = wpa_supplicant_pick_new_network(wpa_s); 1239 if (ssid) { 1240 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network"); 1241 wpa_supplicant_associate(wpa_s, NULL, ssid); 1242 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1243 } else { 1244 int timeout_sec = wpa_s->scan_interval; 1245 int timeout_usec = 0; 1246#ifdef CONFIG_P2P 1247 if (wpas_p2p_scan_no_go_seen(wpa_s) == 1) 1248 return 0; 1249 1250 if (wpa_s->p2p_in_provisioning) { 1251 /* 1252 * Use shorter wait during P2P Provisioning 1253 * state to speed up group formation. 1254 */ 1255 timeout_sec = 0; 1256 timeout_usec = 250000; 1257 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1258 timeout_usec); 1259 return 0; 1260 } 1261#endif /* CONFIG_P2P */ 1262#ifdef CONFIG_INTERWORKING 1263 if (wpa_s->conf->auto_interworking && 1264 wpa_s->conf->interworking && 1265 wpa_s->conf->cred) { 1266 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: " 1267 "start ANQP fetch since no matching " 1268 "networks found"); 1269 wpa_s->network_select = 1; 1270 wpa_s->auto_network_select = 1; 1271 interworking_start_fetch_anqp(wpa_s); 1272 return 1; 1273 } 1274#endif /* CONFIG_INTERWORKING */ 1275 if (wpa_supplicant_req_sched_scan(wpa_s)) 1276 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1277 timeout_usec); 1278 } 1279 } 1280 return 0; 1281} 1282 1283 1284static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1285 union wpa_event_data *data) 1286{ 1287 const char *rn, *rn2; 1288 struct wpa_supplicant *ifs; 1289#ifdef ANDROID_P2P 1290 if (_wpa_supplicant_event_scan_results(wpa_s, data, 0) != 0) { 1291#else 1292 if (_wpa_supplicant_event_scan_results(wpa_s, data) != 0) { 1293#endif 1294 /* 1295 * If no scan results could be fetched, then no need to 1296 * notify those interfaces that did not actually request 1297 * this scan. Similarly, if scan results started a new operation on this 1298 * interface, do not notify other interfaces to avoid concurrent 1299 * operations during a connection attempt. 1300 */ 1301 return; 1302 } 1303 1304 /* 1305 * Check other interfaces to see if they have the same radio-name. If 1306 * so, they get updated with this same scan info. 1307 */ 1308 if (!wpa_s->driver->get_radio_name) 1309 return; 1310 1311 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv); 1312 if (rn == NULL || rn[0] == '\0') 1313 return; 1314 1315 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces " 1316 "sharing same radio (%s) in event_scan_results", rn); 1317 1318 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) { 1319 if (ifs == wpa_s || !ifs->driver->get_radio_name) 1320 continue; 1321 1322 rn2 = ifs->driver->get_radio_name(ifs->drv_priv); 1323 if (rn2 && os_strcmp(rn, rn2) == 0) { 1324 wpa_printf(MSG_DEBUG, "%s: Updating scan results from " 1325 "sibling", ifs->ifname); 1326#ifdef ANDROID_P2P 1327 if ( (ifs->drv_flags & WPA_DRIVER_FLAGS_P2P_CAPABLE) || (ifs->p2p_group_interface != NOT_P2P_GROUP_INTERFACE)) { 1328 /* Do not update the scan results from STA interface to p2p interfaces */ 1329 wpa_printf(MSG_DEBUG, "Not Updating scan results on interface %s from " 1330 "sibling %s", ifs->ifname, wpa_s->ifname); 1331 continue; 1332 } 1333 else { 1334 /* P2P_FIND will result in too many SCAN_RESULT_EVENTS within 1335 * no time. Avoid announcing it to application as it may not 1336 * be that useful (since results will be that of only 1,6,11). 1337 * over to any other interface as it 1338 */ 1339 if(p2p_search_in_progress(wpa_s->global->p2p)) 1340 _wpa_supplicant_event_scan_results(ifs, data, 1); 1341 else 1342 _wpa_supplicant_event_scan_results(ifs, data, 0); 1343 } 1344#else 1345 _wpa_supplicant_event_scan_results(ifs, data); 1346#endif 1347 } 1348 } 1349} 1350 1351#endif /* CONFIG_NO_SCAN_PROCESSING */ 1352 1353 1354int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s) 1355{ 1356#ifdef CONFIG_NO_SCAN_PROCESSING 1357 return -1; 1358#else /* CONFIG_NO_SCAN_PROCESSING */ 1359 struct os_time now; 1360 1361 if (wpa_s->last_scan_res_used <= 0) 1362 return -1; 1363 1364 os_get_time(&now); 1365 if (now.sec - wpa_s->last_scan.sec > 5) { 1366 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results"); 1367 return -1; 1368 } 1369 1370 return wpas_select_network_from_last_scan(wpa_s); 1371#endif /* CONFIG_NO_SCAN_PROCESSING */ 1372} 1373 1374#ifdef CONFIG_WNM 1375 1376static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx) 1377{ 1378 struct wpa_supplicant *wpa_s = eloop_ctx; 1379 1380 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1381 return; 1382 1383 if (!wpa_s->no_keep_alive) { 1384 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR, 1385 MAC2STR(wpa_s->bssid)); 1386 /* TODO: could skip this if normal data traffic has been sent */ 1387 /* TODO: Consider using some more appropriate data frame for 1388 * this */ 1389 if (wpa_s->l2) 1390 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, 1391 (u8 *) "", 0); 1392 } 1393 1394#ifdef CONFIG_SME 1395 if (wpa_s->sme.bss_max_idle_period) { 1396 unsigned int msec; 1397 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */ 1398 if (msec > 100) 1399 msec -= 100; 1400 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1401 wnm_bss_keep_alive, wpa_s, NULL); 1402 } 1403#endif /* CONFIG_SME */ 1404} 1405 1406 1407static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s, 1408 const u8 *ies, size_t ies_len) 1409{ 1410 struct ieee802_11_elems elems; 1411 1412 if (ies == NULL) 1413 return; 1414 1415 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 1416 return; 1417 1418#ifdef CONFIG_SME 1419 if (elems.bss_max_idle_period) { 1420 unsigned int msec; 1421 wpa_s->sme.bss_max_idle_period = 1422 WPA_GET_LE16(elems.bss_max_idle_period); 1423 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 " 1424 "TU)%s", wpa_s->sme.bss_max_idle_period, 1425 (elems.bss_max_idle_period[2] & 0x01) ? 1426 " (protected keep-live required)" : ""); 1427 if (wpa_s->sme.bss_max_idle_period == 0) 1428 wpa_s->sme.bss_max_idle_period = 1; 1429 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) { 1430 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1431 /* msec times 1000 */ 1432 msec = wpa_s->sme.bss_max_idle_period * 1024; 1433 if (msec > 100) 1434 msec -= 100; 1435 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 1436 wnm_bss_keep_alive, wpa_s, 1437 NULL); 1438 } 1439 } 1440#endif /* CONFIG_SME */ 1441} 1442 1443#endif /* CONFIG_WNM */ 1444 1445 1446void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s) 1447{ 1448#ifdef CONFIG_WNM 1449 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 1450#endif /* CONFIG_WNM */ 1451} 1452 1453 1454static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s, 1455 union wpa_event_data *data) 1456{ 1457 int l, len, found = 0, wpa_found, rsn_found; 1458 const u8 *p; 1459 1460 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); 1461 if (data->assoc_info.req_ies) 1462 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, 1463 data->assoc_info.req_ies_len); 1464 if (data->assoc_info.resp_ies) { 1465 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, 1466 data->assoc_info.resp_ies_len); 1467#ifdef CONFIG_TDLS 1468 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies, 1469 data->assoc_info.resp_ies_len); 1470#endif /* CONFIG_TDLS */ 1471#ifdef CONFIG_WNM 1472 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 1473 data->assoc_info.resp_ies_len); 1474#endif /* CONFIG_WNM */ 1475 } 1476 if (data->assoc_info.beacon_ies) 1477 wpa_hexdump(MSG_DEBUG, "beacon_ies", 1478 data->assoc_info.beacon_ies, 1479 data->assoc_info.beacon_ies_len); 1480 if (data->assoc_info.freq) 1481 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", 1482 data->assoc_info.freq); 1483 1484 p = data->assoc_info.req_ies; 1485 l = data->assoc_info.req_ies_len; 1486 1487 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ 1488 while (p && l >= 2) { 1489 len = p[1] + 2; 1490 if (len > l) { 1491 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1492 p, l); 1493 break; 1494 } 1495 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1496 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || 1497 (p[0] == WLAN_EID_RSN && p[1] >= 2)) { 1498 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) 1499 break; 1500 found = 1; 1501 wpa_find_assoc_pmkid(wpa_s); 1502 break; 1503 } 1504 l -= len; 1505 p += len; 1506 } 1507 if (!found && data->assoc_info.req_ies) 1508 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); 1509 1510#ifdef CONFIG_IEEE80211R 1511#ifdef CONFIG_SME 1512 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { 1513 u8 bssid[ETH_ALEN]; 1514 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 1515 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 1516 data->assoc_info.resp_ies, 1517 data->assoc_info.resp_ies_len, 1518 bssid) < 0) { 1519 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 1520 "Reassociation Response failed"); 1521 wpa_supplicant_deauthenticate( 1522 wpa_s, WLAN_REASON_INVALID_IE); 1523 return -1; 1524 } 1525 } 1526 1527 p = data->assoc_info.resp_ies; 1528 l = data->assoc_info.resp_ies_len; 1529 1530#ifdef CONFIG_WPS_STRICT 1531 if (p && wpa_s->current_ssid && 1532 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { 1533 struct wpabuf *wps; 1534 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); 1535 if (wps == NULL) { 1536 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " 1537 "include WPS IE in (Re)Association Response"); 1538 return -1; 1539 } 1540 1541 if (wps_validate_assoc_resp(wps) < 0) { 1542 wpabuf_free(wps); 1543 wpa_supplicant_deauthenticate( 1544 wpa_s, WLAN_REASON_INVALID_IE); 1545 return -1; 1546 } 1547 wpabuf_free(wps); 1548 } 1549#endif /* CONFIG_WPS_STRICT */ 1550 1551 /* Go through the IEs and make a copy of the MDIE, if present. */ 1552 while (p && l >= 2) { 1553 len = p[1] + 2; 1554 if (len > l) { 1555 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1556 p, l); 1557 break; 1558 } 1559 if (p[0] == WLAN_EID_MOBILITY_DOMAIN && 1560 p[1] >= MOBILITY_DOMAIN_ID_LEN) { 1561 wpa_s->sme.ft_used = 1; 1562 os_memcpy(wpa_s->sme.mobility_domain, p + 2, 1563 MOBILITY_DOMAIN_ID_LEN); 1564 break; 1565 } 1566 l -= len; 1567 p += len; 1568 } 1569#endif /* CONFIG_SME */ 1570 1571 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, 1572 data->assoc_info.resp_ies_len); 1573#endif /* CONFIG_IEEE80211R */ 1574 1575 /* WPA/RSN IE from Beacon/ProbeResp */ 1576 p = data->assoc_info.beacon_ies; 1577 l = data->assoc_info.beacon_ies_len; 1578 1579 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. 1580 */ 1581 wpa_found = rsn_found = 0; 1582 while (p && l >= 2) { 1583 len = p[1] + 2; 1584 if (len > l) { 1585 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", 1586 p, l); 1587 break; 1588 } 1589 if (!wpa_found && 1590 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1591 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { 1592 wpa_found = 1; 1593 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); 1594 } 1595 1596 if (!rsn_found && 1597 p[0] == WLAN_EID_RSN && p[1] >= 2) { 1598 rsn_found = 1; 1599 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); 1600 } 1601 1602 l -= len; 1603 p += len; 1604 } 1605 1606 if (!wpa_found && data->assoc_info.beacon_ies) 1607 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); 1608 if (!rsn_found && data->assoc_info.beacon_ies) 1609 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); 1610 if (wpa_found || rsn_found) 1611 wpa_s->ap_ies_from_associnfo = 1; 1612 1613 if (wpa_s->assoc_freq && data->assoc_info.freq && 1614 wpa_s->assoc_freq != data->assoc_info.freq) { 1615 wpa_printf(MSG_DEBUG, "Operating frequency changed from " 1616 "%u to %u MHz", 1617 wpa_s->assoc_freq, data->assoc_info.freq); 1618 wpa_supplicant_update_scan_results(wpa_s); 1619 } 1620 1621 wpa_s->assoc_freq = data->assoc_info.freq; 1622 1623 return 0; 1624} 1625 1626 1627static struct wpa_bss * wpa_supplicant_get_new_bss( 1628 struct wpa_supplicant *wpa_s, const u8 *bssid) 1629{ 1630 struct wpa_bss *bss = NULL; 1631 struct wpa_ssid *ssid = wpa_s->current_ssid; 1632 1633 if (ssid->ssid_len > 0) 1634 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len); 1635 if (!bss) 1636 bss = wpa_bss_get_bssid(wpa_s, bssid); 1637 1638 return bss; 1639} 1640 1641 1642static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s) 1643{ 1644 const u8 *bss_wpa = NULL, *bss_rsn = NULL; 1645 1646 if (!wpa_s->current_bss || !wpa_s->current_ssid) 1647 return -1; 1648 1649 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt)) 1650 return 0; 1651 1652 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss, 1653 WPA_IE_VENDOR_TYPE); 1654 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN); 1655 1656 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, 1657 bss_wpa ? 2 + bss_wpa[1] : 0) || 1658 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, 1659 bss_rsn ? 2 + bss_rsn[1] : 0)) 1660 return -1; 1661 1662 return 0; 1663} 1664 1665 1666static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, 1667 union wpa_event_data *data) 1668{ 1669 u8 bssid[ETH_ALEN]; 1670 int ft_completed; 1671 struct wpa_driver_capa capa; 1672 1673#ifdef CONFIG_AP 1674 if (wpa_s->ap_iface) { 1675 hostapd_notif_assoc(wpa_s->ap_iface->bss[0], 1676 data->assoc_info.addr, 1677 data->assoc_info.req_ies, 1678 data->assoc_info.req_ies_len, 1679 data->assoc_info.reassoc); 1680 return; 1681 } 1682#endif /* CONFIG_AP */ 1683 1684 ft_completed = wpa_ft_is_completed(wpa_s->wpa); 1685 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) 1686 return; 1687 1688 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { 1689 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID"); 1690 wpa_supplicant_deauthenticate( 1691 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1692 return; 1693 } 1694 1695 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); 1696 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) { 1697 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" 1698 MACSTR, MAC2STR(bssid)); 1699 random_add_randomness(bssid, ETH_ALEN); 1700 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); 1701 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 1702 wpas_notify_bssid_changed(wpa_s); 1703 1704 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { 1705 wpa_clear_keys(wpa_s, bssid); 1706 } 1707 if (wpa_supplicant_select_config(wpa_s) < 0) { 1708 wpa_supplicant_deauthenticate( 1709 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1710 return; 1711 } 1712 if (wpa_s->current_ssid) { 1713 struct wpa_bss *bss = NULL; 1714 1715 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 1716 if (!bss) { 1717 wpa_supplicant_update_scan_results(wpa_s); 1718 1719 /* Get the BSS from the new scan results */ 1720 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 1721 } 1722 1723 if (bss) 1724 wpa_s->current_bss = bss; 1725 } 1726 1727 if (wpa_s->conf->ap_scan == 1 && 1728 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) { 1729 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0) 1730 wpa_msg(wpa_s, MSG_WARNING, 1731 "WPA/RSN IEs not updated"); 1732 } 1733 } 1734 1735#ifdef CONFIG_SME 1736 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); 1737 wpa_s->sme.prev_bssid_set = 1; 1738#endif /* CONFIG_SME */ 1739 1740 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); 1741 if (wpa_s->current_ssid) { 1742 /* When using scanning (ap_scan=1), SIM PC/SC interface can be 1743 * initialized before association, but for other modes, 1744 * initialize PC/SC here, if the current configuration needs 1745 * smartcard or SIM/USIM. */ 1746 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); 1747 } 1748 wpa_sm_notify_assoc(wpa_s->wpa, bssid); 1749 if (wpa_s->l2) 1750 l2_packet_notify_auth_start(wpa_s->l2); 1751 1752 /* 1753 * Set portEnabled first to FALSE in order to get EAP state machine out 1754 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE 1755 * state machine may transit to AUTHENTICATING state based on obsolete 1756 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to 1757 * AUTHENTICATED without ever giving chance to EAP state machine to 1758 * reset the state. 1759 */ 1760 if (!ft_completed) { 1761 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 1762 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 1763 } 1764 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed) 1765 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 1766 /* 802.1X::portControl = Auto */ 1767 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); 1768 wpa_s->eapol_received = 0; 1769 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1770 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || 1771 (wpa_s->current_ssid && 1772 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { 1773 wpa_supplicant_cancel_auth_timeout(wpa_s); 1774 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1775 } else if (!ft_completed) { 1776 /* Timeout for receiving the first EAPOL packet */ 1777 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); 1778 } 1779 wpa_supplicant_cancel_scan(wpa_s); 1780 1781 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1782 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { 1783 /* 1784 * We are done; the driver will take care of RSN 4-way 1785 * handshake. 1786 */ 1787 wpa_supplicant_cancel_auth_timeout(wpa_s); 1788 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1789 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1790 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1791 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1792 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { 1793 /* 1794 * The driver will take care of RSN 4-way handshake, so we need 1795 * to allow EAPOL supplicant to complete its work without 1796 * waiting for WPA supplicant. 1797 */ 1798 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1799 } else if (ft_completed) { 1800 /* 1801 * FT protocol completed - make sure EAPOL state machine ends 1802 * up in authenticated. 1803 */ 1804 wpa_supplicant_cancel_auth_timeout(wpa_s); 1805 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1806 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1807 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1808 } 1809 1810 wpa_s->last_eapol_matches_bssid = 0; 1811 1812 if (wpa_s->pending_eapol_rx) { 1813 struct os_time now, age; 1814 os_get_time(&now); 1815 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age); 1816 if (age.sec == 0 && age.usec < 100000 && 1817 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == 1818 0) { 1819 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " 1820 "frame that was received just before " 1821 "association notification"); 1822 wpa_supplicant_rx_eapol( 1823 wpa_s, wpa_s->pending_eapol_rx_src, 1824 wpabuf_head(wpa_s->pending_eapol_rx), 1825 wpabuf_len(wpa_s->pending_eapol_rx)); 1826 } 1827 wpabuf_free(wpa_s->pending_eapol_rx); 1828 wpa_s->pending_eapol_rx = NULL; 1829 } 1830 1831 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1832 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 1833 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 && 1834 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) { 1835 /* Set static WEP keys again */ 1836 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); 1837 } 1838 1839#ifdef CONFIG_IBSS_RSN 1840 if (wpa_s->current_ssid && 1841 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 1842 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && 1843 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE && 1844 wpa_s->ibss_rsn == NULL) { 1845 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s); 1846 if (!wpa_s->ibss_rsn) { 1847 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN"); 1848 wpa_supplicant_deauthenticate( 1849 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1850 return; 1851 } 1852 1853 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk); 1854 } 1855#endif /* CONFIG_IBSS_RSN */ 1856 1857 wpas_wps_notify_assoc(wpa_s, bssid); 1858} 1859 1860 1861static int disconnect_reason_recoverable(u16 reason_code) 1862{ 1863 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY || 1864 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA || 1865 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA; 1866} 1867 1868 1869static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s, 1870 u16 reason_code, 1871 int locally_generated) 1872{ 1873 const u8 *bssid; 1874 1875 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 1876 /* 1877 * At least Host AP driver and a Prism3 card seemed to be 1878 * generating streams of disconnected events when configuring 1879 * IBSS for WPA-None. Ignore them for now. 1880 */ 1881 return; 1882 } 1883 1884 bssid = wpa_s->bssid; 1885 if (is_zero_ether_addr(bssid)) 1886 bssid = wpa_s->pending_bssid; 1887 1888 if (!is_zero_ether_addr(bssid) || 1889 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 1890 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR 1891 " reason=%d%s", 1892 MAC2STR(bssid), reason_code, 1893 locally_generated ? " locally_generated=1" : ""); 1894 } 1895} 1896 1897 1898static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code, 1899 int locally_generated) 1900{ 1901 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE || 1902 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 1903 return 0; /* Not in 4-way handshake with PSK */ 1904 1905 /* 1906 * It looks like connection was lost while trying to go through PSK 1907 * 4-way handshake. Filter out known disconnection cases that are caused 1908 * by something else than PSK mismatch to avoid confusing reports. 1909 */ 1910 1911 if (locally_generated) { 1912 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS) 1913 return 0; 1914 } 1915 1916 return 1; 1917} 1918 1919 1920static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s, 1921 u16 reason_code, 1922 int locally_generated) 1923{ 1924 const u8 *bssid; 1925 int authenticating; 1926 u8 prev_pending_bssid[ETH_ALEN]; 1927 struct wpa_bss *fast_reconnect = NULL; 1928 struct wpa_ssid *fast_reconnect_ssid = NULL; 1929 struct wpa_ssid *last_ssid; 1930 1931 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING; 1932 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN); 1933 1934 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 1935 /* 1936 * At least Host AP driver and a Prism3 card seemed to be 1937 * generating streams of disconnected events when configuring 1938 * IBSS for WPA-None. Ignore them for now. 1939 */ 1940 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in " 1941 "IBSS/WPA-None mode"); 1942 return; 1943 } 1944 1945 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) { 1946 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - " 1947 "pre-shared key may be incorrect"); 1948 wpas_auth_failed(wpa_s); 1949 } 1950 if (!wpa_s->auto_reconnect_disabled || 1951 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) { 1952 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to " 1953 "reconnect (wps=%d wpa_state=%d)", 1954 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS, 1955 wpa_s->wpa_state); 1956 if (wpa_s->wpa_state == WPA_COMPLETED && 1957 wpa_s->current_ssid && 1958 wpa_s->current_ssid->mode == WPAS_MODE_INFRA && 1959 !locally_generated && 1960 disconnect_reason_recoverable(reason_code)) { 1961 /* 1962 * It looks like the AP has dropped association with 1963 * us, but could allow us to get back in. Try to 1964 * reconnect to the same BSS without full scan to save 1965 * time for some common cases. 1966 */ 1967 fast_reconnect = wpa_s->current_bss; 1968 fast_reconnect_ssid = wpa_s->current_ssid; 1969 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) 1970#ifdef ANDROID 1971 wpa_supplicant_req_scan(wpa_s, 0, 500000); 1972#else 1973 wpa_supplicant_req_scan(wpa_s, 0, 100000); 1974#endif 1975 else 1976 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new " 1977 "immediate scan"); 1978 } else { 1979 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not " 1980 "try to re-connect"); 1981 wpa_s->reassociate = 0; 1982 wpa_s->disconnected = 1; 1983 wpa_supplicant_cancel_sched_scan(wpa_s); 1984 } 1985 bssid = wpa_s->bssid; 1986 if (is_zero_ether_addr(bssid)) 1987 bssid = wpa_s->pending_bssid; 1988 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 1989 wpas_connection_failed(wpa_s, bssid); 1990 wpa_sm_notify_disassoc(wpa_s->wpa); 1991 if (locally_generated) 1992 wpa_s->disconnect_reason = -reason_code; 1993 else 1994 wpa_s->disconnect_reason = reason_code; 1995 wpas_notify_disconnect_reason(wpa_s); 1996 if (wpa_supplicant_dynamic_keys(wpa_s)) { 1997 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys"); 1998 wpa_s->keys_cleared = 0; 1999 wpa_clear_keys(wpa_s, wpa_s->bssid); 2000 } 2001 last_ssid = wpa_s->current_ssid; 2002 wpa_supplicant_mark_disassoc(wpa_s); 2003 2004 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) { 2005 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); 2006 wpa_s->current_ssid = last_ssid; 2007 } 2008 2009 if (fast_reconnect) { 2010#ifndef CONFIG_NO_SCAN_PROCESSING 2011 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS"); 2012 if (wpa_supplicant_connect(wpa_s, fast_reconnect, 2013 fast_reconnect_ssid) < 0) { 2014 /* Recover through full scan */ 2015 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2016 } 2017#endif /* CONFIG_NO_SCAN_PROCESSING */ 2018 } 2019} 2020 2021 2022#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2023void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx) 2024{ 2025 struct wpa_supplicant *wpa_s = eloop_ctx; 2026 2027 if (!wpa_s->pending_mic_error_report) 2028 return; 2029 2030 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report"); 2031 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise); 2032 wpa_s->pending_mic_error_report = 0; 2033} 2034#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2035 2036 2037static void 2038wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s, 2039 union wpa_event_data *data) 2040{ 2041 int pairwise; 2042 struct os_time t; 2043 2044 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); 2045 pairwise = (data && data->michael_mic_failure.unicast); 2046 os_get_time(&t); 2047 if ((wpa_s->last_michael_mic_error && 2048 t.sec - wpa_s->last_michael_mic_error <= 60) || 2049 wpa_s->pending_mic_error_report) { 2050 if (wpa_s->pending_mic_error_report) { 2051 /* 2052 * Send the pending MIC error report immediately since 2053 * we are going to start countermeasures and AP better 2054 * do the same. 2055 */ 2056 wpa_sm_key_request(wpa_s->wpa, 1, 2057 wpa_s->pending_mic_error_pairwise); 2058 } 2059 2060 /* Send the new MIC error report immediately since we are going 2061 * to start countermeasures and AP better do the same. 2062 */ 2063 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2064 2065 /* initialize countermeasures */ 2066 wpa_s->countermeasures = 1; 2067 2068 wpa_blacklist_add(wpa_s, wpa_s->bssid); 2069 2070 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started"); 2071 2072 /* 2073 * Need to wait for completion of request frame. We do not get 2074 * any callback for the message completion, so just wait a 2075 * short while and hope for the best. */ 2076 os_sleep(0, 10000); 2077 2078 wpa_drv_set_countermeasures(wpa_s, 1); 2079 wpa_supplicant_deauthenticate(wpa_s, 2080 WLAN_REASON_MICHAEL_MIC_FAILURE); 2081 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, 2082 wpa_s, NULL); 2083 eloop_register_timeout(60, 0, 2084 wpa_supplicant_stop_countermeasures, 2085 wpa_s, NULL); 2086 /* TODO: mark the AP rejected for 60 second. STA is 2087 * allowed to associate with another AP.. */ 2088 } else { 2089#ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2090 if (wpa_s->mic_errors_seen) { 2091 /* 2092 * Reduce the effectiveness of Michael MIC error 2093 * reports as a means for attacking against TKIP if 2094 * more than one MIC failure is noticed with the same 2095 * PTK. We delay the transmission of the reports by a 2096 * random time between 0 and 60 seconds in order to 2097 * force the attacker wait 60 seconds before getting 2098 * the information on whether a frame resulted in a MIC 2099 * failure. 2100 */ 2101 u8 rval[4]; 2102 int sec; 2103 2104 if (os_get_random(rval, sizeof(rval)) < 0) 2105 sec = os_random() % 60; 2106 else 2107 sec = WPA_GET_BE32(rval) % 60; 2108 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error " 2109 "report %d seconds", sec); 2110 wpa_s->pending_mic_error_report = 1; 2111 wpa_s->pending_mic_error_pairwise = pairwise; 2112 eloop_cancel_timeout( 2113 wpa_supplicant_delayed_mic_error_report, 2114 wpa_s, NULL); 2115 eloop_register_timeout( 2116 sec, os_random() % 1000000, 2117 wpa_supplicant_delayed_mic_error_report, 2118 wpa_s, NULL); 2119 } else { 2120 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2121 } 2122#else /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2123 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2124#endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2125 } 2126 wpa_s->last_michael_mic_error = t.sec; 2127 wpa_s->mic_errors_seen++; 2128} 2129 2130 2131#ifdef CONFIG_TERMINATE_ONLASTIF 2132static int any_interfaces(struct wpa_supplicant *head) 2133{ 2134 struct wpa_supplicant *wpa_s; 2135 2136 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) 2137 if (!wpa_s->interface_removed) 2138 return 1; 2139 return 0; 2140} 2141#endif /* CONFIG_TERMINATE_ONLASTIF */ 2142 2143 2144static void 2145wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, 2146 union wpa_event_data *data) 2147{ 2148 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) 2149 return; 2150 2151 switch (data->interface_status.ievent) { 2152 case EVENT_INTERFACE_ADDED: 2153 if (!wpa_s->interface_removed) 2154 break; 2155 wpa_s->interface_removed = 0; 2156 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); 2157 if (wpa_supplicant_driver_init(wpa_s) < 0) { 2158 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " 2159 "driver after interface was added"); 2160 } 2161 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 2162 break; 2163 case EVENT_INTERFACE_REMOVED: 2164 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed"); 2165 wpa_s->interface_removed = 1; 2166 wpa_supplicant_mark_disassoc(wpa_s); 2167 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2168 l2_packet_deinit(wpa_s->l2); 2169 wpa_s->l2 = NULL; 2170#ifdef CONFIG_IBSS_RSN 2171 ibss_rsn_deinit(wpa_s->ibss_rsn); 2172 wpa_s->ibss_rsn = NULL; 2173#endif /* CONFIG_IBSS_RSN */ 2174#ifdef CONFIG_TERMINATE_ONLASTIF 2175 /* check if last interface */ 2176 if (!any_interfaces(wpa_s->global->ifaces)) 2177 eloop_terminate(); 2178#endif /* CONFIG_TERMINATE_ONLASTIF */ 2179 break; 2180 } 2181} 2182 2183 2184#ifdef CONFIG_PEERKEY 2185static void 2186wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s, 2187 union wpa_event_data *data) 2188{ 2189 if (data == NULL) 2190 return; 2191 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer); 2192} 2193#endif /* CONFIG_PEERKEY */ 2194 2195 2196#ifdef CONFIG_TDLS 2197static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s, 2198 union wpa_event_data *data) 2199{ 2200 if (data == NULL) 2201 return; 2202 switch (data->tdls.oper) { 2203 case TDLS_REQUEST_SETUP: 2204 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer); 2205 if (wpa_tdls_is_external_setup(wpa_s->wpa)) 2206 wpa_tdls_start(wpa_s->wpa, data->tdls.peer); 2207 else 2208 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer); 2209 break; 2210 case TDLS_REQUEST_TEARDOWN: 2211 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer, 2212 data->tdls.reason_code); 2213 break; 2214 } 2215} 2216#endif /* CONFIG_TDLS */ 2217 2218 2219#ifdef CONFIG_WNM 2220static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s, 2221 union wpa_event_data *data) 2222{ 2223 if (data == NULL) 2224 return; 2225 switch (data->wnm.oper) { 2226 case WNM_OPER_SLEEP: 2227 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request " 2228 "(action=%d, intval=%d)", 2229 data->wnm.sleep_action, data->wnm.sleep_intval); 2230 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action, 2231 data->wnm.sleep_intval, NULL); 2232 break; 2233 } 2234} 2235#endif /* CONFIG_WNM */ 2236 2237 2238#ifdef CONFIG_IEEE80211R 2239static void 2240wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s, 2241 union wpa_event_data *data) 2242{ 2243 if (data == NULL) 2244 return; 2245 2246 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies, 2247 data->ft_ies.ies_len, 2248 data->ft_ies.ft_action, 2249 data->ft_ies.target_ap, 2250 data->ft_ies.ric_ies, 2251 data->ft_ies.ric_ies_len) < 0) { 2252 /* TODO: prevent MLME/driver from trying to associate? */ 2253 } 2254} 2255#endif /* CONFIG_IEEE80211R */ 2256 2257 2258#ifdef CONFIG_IBSS_RSN 2259static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s, 2260 union wpa_event_data *data) 2261{ 2262 struct wpa_ssid *ssid; 2263 if (wpa_s->wpa_state < WPA_ASSOCIATED) 2264 return; 2265 if (data == NULL) 2266 return; 2267 ssid = wpa_s->current_ssid; 2268 if (ssid == NULL) 2269 return; 2270 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 2271 return; 2272 2273 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer); 2274} 2275#endif /* CONFIG_IBSS_RSN */ 2276 2277 2278#ifdef CONFIG_IEEE80211R 2279static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, 2280 size_t len) 2281{ 2282 const u8 *sta_addr, *target_ap_addr; 2283 u16 status; 2284 2285 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); 2286 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) 2287 return; /* only SME case supported for now */ 2288 if (len < 1 + 2 * ETH_ALEN + 2) 2289 return; 2290 if (data[0] != 2) 2291 return; /* Only FT Action Response is supported for now */ 2292 sta_addr = data + 1; 2293 target_ap_addr = data + 1 + ETH_ALEN; 2294 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); 2295 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " 2296 MACSTR " TargetAP " MACSTR " status %u", 2297 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); 2298 2299 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { 2300 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR 2301 " in FT Action Response", MAC2STR(sta_addr)); 2302 return; 2303 } 2304 2305 if (status) { 2306 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " 2307 "failure (status code %d)", status); 2308 /* TODO: report error to FT code(?) */ 2309 return; 2310 } 2311 2312 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, 2313 len - (1 + 2 * ETH_ALEN + 2), 1, 2314 target_ap_addr, NULL, 0) < 0) 2315 return; 2316 2317#ifdef CONFIG_SME 2318 { 2319 struct wpa_bss *bss; 2320 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); 2321 if (bss) 2322 wpa_s->sme.freq = bss->freq; 2323 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; 2324 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, 2325 WLAN_AUTH_FT); 2326 } 2327#endif /* CONFIG_SME */ 2328} 2329#endif /* CONFIG_IEEE80211R */ 2330 2331 2332static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, 2333 struct unprot_deauth *e) 2334{ 2335#ifdef CONFIG_IEEE80211W 2336 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " 2337 "dropped: " MACSTR " -> " MACSTR 2338 " (reason code %u)", 2339 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2340 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2341#endif /* CONFIG_IEEE80211W */ 2342} 2343 2344 2345static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, 2346 struct unprot_disassoc *e) 2347{ 2348#ifdef CONFIG_IEEE80211W 2349 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " 2350 "dropped: " MACSTR " -> " MACSTR 2351 " (reason code %u)", 2352 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 2353 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 2354#endif /* CONFIG_IEEE80211W */ 2355} 2356 2357 2358void wpa_supplicant_event(void *ctx, enum wpa_event_type event, 2359 union wpa_event_data *data) 2360{ 2361 struct wpa_supplicant *wpa_s = ctx; 2362 u16 reason_code = 0; 2363 int locally_generated = 0; 2364 2365 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && 2366 event != EVENT_INTERFACE_ENABLED && 2367 event != EVENT_INTERFACE_STATUS && 2368 event != EVENT_SCHED_SCAN_STOPPED) { 2369 wpa_dbg(wpa_s, MSG_DEBUG, 2370 "Ignore event %s (%d) while interface is disabled", 2371 event_to_string(event), event); 2372 return; 2373 } 2374 2375#ifndef CONFIG_NO_STDOUT_DEBUG 2376{ 2377 int level = MSG_DEBUG; 2378 2379 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) { 2380 const struct ieee80211_hdr *hdr; 2381 u16 fc; 2382 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame; 2383 fc = le_to_host16(hdr->frame_control); 2384 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 2385 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) 2386 level = MSG_EXCESSIVE; 2387 } 2388 2389 wpa_dbg(wpa_s, level, "Event %s (%d) received", 2390 event_to_string(event), event); 2391} 2392#endif /* CONFIG_NO_STDOUT_DEBUG */ 2393 2394 switch (event) { 2395 case EVENT_AUTH: 2396 sme_event_auth(wpa_s, data); 2397 break; 2398 case EVENT_ASSOC: 2399 wpa_supplicant_event_assoc(wpa_s, data); 2400 break; 2401 case EVENT_DISASSOC: 2402 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); 2403 if (data) { 2404 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 2405 data->disassoc_info.reason_code, 2406 data->disassoc_info.locally_generated ? 2407 " (locally generated)" : ""); 2408 if (data->disassoc_info.addr) 2409 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 2410 MAC2STR(data->disassoc_info.addr)); 2411 } 2412#ifdef CONFIG_AP 2413 if (wpa_s->ap_iface && data && data->disassoc_info.addr) { 2414 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], 2415 data->disassoc_info.addr); 2416 break; 2417 } 2418 if (wpa_s->ap_iface) { 2419 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in " 2420 "AP mode"); 2421 break; 2422 } 2423#endif /* CONFIG_AP */ 2424 if (data) { 2425 reason_code = data->disassoc_info.reason_code; 2426 locally_generated = 2427 data->disassoc_info.locally_generated; 2428 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", 2429 data->disassoc_info.ie, 2430 data->disassoc_info.ie_len); 2431#ifdef CONFIG_P2P 2432 wpas_p2p_disassoc_notif( 2433 wpa_s, data->disassoc_info.addr, reason_code, 2434 data->disassoc_info.ie, 2435 data->disassoc_info.ie_len, 2436 locally_generated); 2437#endif /* CONFIG_P2P */ 2438 } 2439 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2440 sme_event_disassoc(wpa_s, data); 2441 /* fall through */ 2442 case EVENT_DEAUTH: 2443 if (event == EVENT_DEAUTH) { 2444 wpa_dbg(wpa_s, MSG_DEBUG, 2445 "Deauthentication notification"); 2446 if (data) { 2447 reason_code = data->deauth_info.reason_code; 2448 locally_generated = 2449 data->deauth_info.locally_generated; 2450 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 2451 data->deauth_info.reason_code, 2452 data->deauth_info.locally_generated ? 2453 " (locally generated)" : ""); 2454 if (data->deauth_info.addr) { 2455 wpa_dbg(wpa_s, MSG_DEBUG, " * address " 2456 MACSTR, 2457 MAC2STR(data->deauth_info. 2458 addr)); 2459 } 2460 wpa_hexdump(MSG_DEBUG, 2461 "Deauthentication frame IE(s)", 2462 data->deauth_info.ie, 2463 data->deauth_info.ie_len); 2464 } 2465 } 2466#ifdef CONFIG_AP 2467 if (wpa_s->ap_iface && data && data->deauth_info.addr) { 2468 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], 2469 data->deauth_info.addr); 2470 break; 2471 } 2472 if (wpa_s->ap_iface) { 2473 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in " 2474 "AP mode"); 2475 break; 2476 } 2477#endif /* CONFIG_AP */ 2478 wpa_supplicant_event_disassoc(wpa_s, reason_code, 2479 locally_generated); 2480 if (reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED || 2481 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || 2482 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) && 2483 eapol_sm_failed(wpa_s->eapol))) 2484 wpas_auth_failed(wpa_s); 2485#ifdef CONFIG_P2P 2486 if (event == EVENT_DEAUTH && data) { 2487 if (wpas_p2p_deauth_notif(wpa_s, 2488 data->deauth_info.addr, 2489 reason_code, 2490 data->deauth_info.ie, 2491 data->deauth_info.ie_len, 2492 locally_generated) > 0) { 2493 /* 2494 * The interface was removed, so cannot 2495 * continue processing any additional 2496 * operations after this. 2497 */ 2498 break; 2499 } 2500 } 2501#endif /* CONFIG_P2P */ 2502 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code, 2503 locally_generated); 2504 break; 2505 case EVENT_MICHAEL_MIC_FAILURE: 2506 wpa_supplicant_event_michael_mic_failure(wpa_s, data); 2507 break; 2508#ifndef CONFIG_NO_SCAN_PROCESSING 2509 case EVENT_SCAN_RESULTS: 2510 wpa_supplicant_event_scan_results(wpa_s, data); 2511#ifdef CONFIG_P2P 2512 if (wpa_s->global->p2p_cb_on_scan_complete && !wpa_s->global->p2p_disabled && 2513 wpa_s->global->p2p != NULL && 2514 wpa_s->wpa_state != WPA_AUTHENTICATING && 2515 wpa_s->wpa_state != WPA_ASSOCIATING) { 2516 wpa_s->global->p2p_cb_on_scan_complete = 0; 2517 if (p2p_other_scan_completed(wpa_s->global->p2p) == 1) { 2518 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Pending P2P operation " 2519 "continued after scan result processing"); 2520 } 2521 } 2522#endif /* CONFIG_P2P */ 2523 break; 2524#endif /* CONFIG_NO_SCAN_PROCESSING */ 2525 case EVENT_ASSOCINFO: 2526 wpa_supplicant_event_associnfo(wpa_s, data); 2527 break; 2528 case EVENT_INTERFACE_STATUS: 2529 wpa_supplicant_event_interface_status(wpa_s, data); 2530 break; 2531 case EVENT_PMKID_CANDIDATE: 2532 wpa_supplicant_event_pmkid_candidate(wpa_s, data); 2533 break; 2534#ifdef CONFIG_PEERKEY 2535 case EVENT_STKSTART: 2536 wpa_supplicant_event_stkstart(wpa_s, data); 2537 break; 2538#endif /* CONFIG_PEERKEY */ 2539#ifdef CONFIG_TDLS 2540 case EVENT_TDLS: 2541 wpa_supplicant_event_tdls(wpa_s, data); 2542 break; 2543#endif /* CONFIG_TDLS */ 2544#ifdef CONFIG_WNM 2545 case EVENT_WNM: 2546 wpa_supplicant_event_wnm(wpa_s, data); 2547 break; 2548#endif /* CONFIG_WNM */ 2549#ifdef CONFIG_IEEE80211R 2550 case EVENT_FT_RESPONSE: 2551 wpa_supplicant_event_ft_response(wpa_s, data); 2552 break; 2553#endif /* CONFIG_IEEE80211R */ 2554#ifdef CONFIG_IBSS_RSN 2555 case EVENT_IBSS_RSN_START: 2556 wpa_supplicant_event_ibss_rsn_start(wpa_s, data); 2557 break; 2558#endif /* CONFIG_IBSS_RSN */ 2559 case EVENT_ASSOC_REJECT: 2560 if (data->assoc_reject.bssid) 2561 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 2562 "bssid=" MACSTR " status_code=%u", 2563 MAC2STR(data->assoc_reject.bssid), 2564 data->assoc_reject.status_code); 2565 else 2566 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 2567 "status_code=%u", 2568 data->assoc_reject.status_code); 2569 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2570 sme_event_assoc_reject(wpa_s, data); 2571 else { 2572#ifdef ANDROID_P2P 2573 if(!wpa_s->current_ssid) { 2574 wpa_printf(MSG_ERROR, "current_ssid == NULL"); 2575 break; 2576 } 2577 /* If assoc reject is reported by the driver, then avoid 2578 * waiting for the authentication timeout. Cancel the 2579 * authentication timeout and retry the assoc. 2580 */ 2581 if(wpa_s->current_ssid->assoc_retry++ < 10) { 2582 wpa_printf(MSG_ERROR, "Retrying assoc: %d ", 2583 wpa_s->current_ssid->assoc_retry); 2584 2585 wpa_supplicant_cancel_auth_timeout(wpa_s); 2586 2587 /* Clear the states */ 2588 wpa_sm_notify_disassoc(wpa_s->wpa); 2589 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2590 2591 wpa_s->reassociate = 1; 2592 if (wpa_s->p2p_group_interface == NOT_P2P_GROUP_INTERFACE) { 2593 const u8 *bl_bssid = data->assoc_reject.bssid; 2594 if (!bl_bssid || is_zero_ether_addr(bl_bssid)) 2595 bl_bssid = wpa_s->pending_bssid; 2596 wpa_blacklist_add(wpa_s, bl_bssid); 2597 wpa_supplicant_req_scan(wpa_s, 0, 0); 2598 } else { 2599 wpa_supplicant_req_scan(wpa_s, 1, 0); 2600 } 2601 } else if (wpa_s->p2p_group_interface != NOT_P2P_GROUP_INTERFACE) { 2602 /* If we ASSOC_REJECT's hits threshold, disable the 2603 * network 2604 */ 2605 wpa_printf(MSG_ERROR, "Assoc retry threshold reached. " 2606 "Disabling the network"); 2607 wpa_s->current_ssid->assoc_retry = 0; 2608 wpa_supplicant_disable_network(wpa_s, wpa_s->current_ssid); 2609 wpas_p2p_group_remove(wpa_s, wpa_s->ifname); 2610 } 2611#else 2612 const u8 *bssid = data->assoc_reject.bssid; 2613 if (bssid == NULL || is_zero_ether_addr(bssid)) 2614 bssid = wpa_s->pending_bssid; 2615 wpas_connection_failed(wpa_s, bssid); 2616 wpa_supplicant_mark_disassoc(wpa_s); 2617#endif /* ANDROID_P2P */ 2618 } 2619 break; 2620 case EVENT_AUTH_TIMED_OUT: 2621 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2622 sme_event_auth_timed_out(wpa_s, data); 2623 break; 2624 case EVENT_ASSOC_TIMED_OUT: 2625 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 2626 sme_event_assoc_timed_out(wpa_s, data); 2627 break; 2628 case EVENT_TX_STATUS: 2629 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR 2630 " type=%d stype=%d", 2631 MAC2STR(data->tx_status.dst), 2632 data->tx_status.type, data->tx_status.stype); 2633#ifdef CONFIG_AP 2634 if (wpa_s->ap_iface == NULL) { 2635#ifdef CONFIG_OFFCHANNEL 2636 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 2637 data->tx_status.stype == WLAN_FC_STYPE_ACTION) 2638 offchannel_send_action_tx_status( 2639 wpa_s, data->tx_status.dst, 2640 data->tx_status.data, 2641 data->tx_status.data_len, 2642 data->tx_status.ack ? 2643 OFFCHANNEL_SEND_ACTION_SUCCESS : 2644 OFFCHANNEL_SEND_ACTION_NO_ACK); 2645#endif /* CONFIG_OFFCHANNEL */ 2646 break; 2647 } 2648#endif /* CONFIG_AP */ 2649#ifdef CONFIG_OFFCHANNEL 2650 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" 2651 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst)); 2652 /* 2653 * Catch TX status events for Action frames we sent via group 2654 * interface in GO mode. 2655 */ 2656 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 2657 data->tx_status.stype == WLAN_FC_STYPE_ACTION && 2658 os_memcmp(wpa_s->parent->pending_action_dst, 2659 data->tx_status.dst, ETH_ALEN) == 0) { 2660 offchannel_send_action_tx_status( 2661 wpa_s->parent, data->tx_status.dst, 2662 data->tx_status.data, 2663 data->tx_status.data_len, 2664 data->tx_status.ack ? 2665 OFFCHANNEL_SEND_ACTION_SUCCESS : 2666 OFFCHANNEL_SEND_ACTION_NO_ACK); 2667 break; 2668 } 2669#endif /* CONFIG_OFFCHANNEL */ 2670#ifdef CONFIG_AP 2671 switch (data->tx_status.type) { 2672 case WLAN_FC_TYPE_MGMT: 2673 ap_mgmt_tx_cb(wpa_s, data->tx_status.data, 2674 data->tx_status.data_len, 2675 data->tx_status.stype, 2676 data->tx_status.ack); 2677 break; 2678 case WLAN_FC_TYPE_DATA: 2679 ap_tx_status(wpa_s, data->tx_status.dst, 2680 data->tx_status.data, 2681 data->tx_status.data_len, 2682 data->tx_status.ack); 2683 break; 2684 } 2685#endif /* CONFIG_AP */ 2686 break; 2687#ifdef CONFIG_AP 2688 case EVENT_EAPOL_TX_STATUS: 2689 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst, 2690 data->eapol_tx_status.data, 2691 data->eapol_tx_status.data_len, 2692 data->eapol_tx_status.ack); 2693 break; 2694 case EVENT_DRIVER_CLIENT_POLL_OK: 2695 ap_client_poll_ok(wpa_s, data->client_poll.addr); 2696 break; 2697 case EVENT_RX_FROM_UNKNOWN: 2698 if (wpa_s->ap_iface == NULL) 2699 break; 2700 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr, 2701 data->rx_from_unknown.wds); 2702 break; 2703 case EVENT_CH_SWITCH: 2704 if (!data) 2705 break; 2706 if (!wpa_s->ap_iface) { 2707 wpa_dbg(wpa_s, MSG_DEBUG, "AP: Ignore channel switch " 2708 "event in non-AP mode"); 2709 break; 2710 } 2711 2712#ifdef CONFIG_AP 2713 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq, 2714 data->ch_switch.ht_enabled, 2715 data->ch_switch.ch_offset); 2716#endif /* CONFIG_AP */ 2717 break; 2718 case EVENT_RX_MGMT: { 2719 u16 fc, stype; 2720 const struct ieee80211_mgmt *mgmt; 2721 2722 mgmt = (const struct ieee80211_mgmt *) 2723 data->rx_mgmt.frame; 2724 fc = le_to_host16(mgmt->frame_control); 2725 stype = WLAN_FC_GET_STYPE(fc); 2726 2727 if (wpa_s->ap_iface == NULL) { 2728#ifdef CONFIG_P2P 2729 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2730 data->rx_mgmt.frame_len > 24) { 2731 const u8 *src = mgmt->sa; 2732 const u8 *ie = mgmt->u.probe_req.variable; 2733 size_t ie_len = data->rx_mgmt.frame_len - 2734 (mgmt->u.probe_req.variable - 2735 data->rx_mgmt.frame); 2736 wpas_p2p_probe_req_rx( 2737 wpa_s, src, mgmt->da, 2738 mgmt->bssid, ie, ie_len, 2739 data->rx_mgmt.ssi_signal); 2740 break; 2741 } 2742#endif /* CONFIG_P2P */ 2743 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " 2744 "management frame in non-AP mode"); 2745 break; 2746 } 2747 2748 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2749 data->rx_mgmt.frame_len > 24) { 2750 const u8 *ie = mgmt->u.probe_req.variable; 2751 size_t ie_len = data->rx_mgmt.frame_len - 2752 (mgmt->u.probe_req.variable - 2753 data->rx_mgmt.frame); 2754 2755 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da, 2756 mgmt->bssid, ie, ie_len, 2757 data->rx_mgmt.ssi_signal); 2758 } 2759 2760 ap_mgmt_rx(wpa_s, &data->rx_mgmt); 2761 break; 2762 } 2763#endif /* CONFIG_AP */ 2764 case EVENT_RX_ACTION: 2765 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR 2766 " Category=%u DataLen=%d freq=%d MHz", 2767 MAC2STR(data->rx_action.sa), 2768 data->rx_action.category, (int) data->rx_action.len, 2769 data->rx_action.freq); 2770#ifdef CONFIG_IEEE80211R 2771 if (data->rx_action.category == WLAN_ACTION_FT) { 2772 ft_rx_action(wpa_s, data->rx_action.data, 2773 data->rx_action.len); 2774 break; 2775 } 2776#endif /* CONFIG_IEEE80211R */ 2777#ifdef CONFIG_IEEE80211W 2778#ifdef CONFIG_SME 2779 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) { 2780 sme_sa_query_rx(wpa_s, data->rx_action.sa, 2781 data->rx_action.data, 2782 data->rx_action.len); 2783 break; 2784 } 2785#endif /* CONFIG_SME */ 2786#endif /* CONFIG_IEEE80211W */ 2787#ifdef CONFIG_WNM 2788 if (data->rx_action.category == WLAN_ACTION_WNM) { 2789 ieee802_11_rx_wnm_action(wpa_s, &data->rx_action); 2790 break; 2791 } 2792#endif /* CONFIG_WNM */ 2793#ifdef CONFIG_GAS 2794 if (data->rx_action.category == WLAN_ACTION_PUBLIC && 2795 gas_query_rx(wpa_s->gas, data->rx_action.da, 2796 data->rx_action.sa, data->rx_action.bssid, 2797 data->rx_action.data, data->rx_action.len, 2798 data->rx_action.freq) == 0) 2799 break; 2800#endif /* CONFIG_GAS */ 2801#ifdef CONFIG_TDLS 2802 if (data->rx_action.category == WLAN_ACTION_PUBLIC && 2803 data->rx_action.len >= 4 && 2804 data->rx_action.data[0] == WLAN_TDLS_DISCOVERY_RESPONSE) { 2805 wpa_dbg(wpa_s, MSG_DEBUG, "TDLS: Received Discovery " 2806 "Response from " MACSTR, 2807 MAC2STR(data->rx_action.sa)); 2808 break; 2809 } 2810#endif /* CONFIG_TDLS */ 2811#ifdef CONFIG_P2P 2812 wpas_p2p_rx_action(wpa_s, data->rx_action.da, 2813 data->rx_action.sa, 2814 data->rx_action.bssid, 2815 data->rx_action.category, 2816 data->rx_action.data, 2817 data->rx_action.len, data->rx_action.freq); 2818#endif /* CONFIG_P2P */ 2819 break; 2820 case EVENT_RX_PROBE_REQ: 2821 if (data->rx_probe_req.sa == NULL || 2822 data->rx_probe_req.ie == NULL) 2823 break; 2824#ifdef CONFIG_AP 2825 if (wpa_s->ap_iface) { 2826 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], 2827 data->rx_probe_req.sa, 2828 data->rx_probe_req.da, 2829 data->rx_probe_req.bssid, 2830 data->rx_probe_req.ie, 2831 data->rx_probe_req.ie_len, 2832 data->rx_probe_req.ssi_signal); 2833 break; 2834 } 2835#endif /* CONFIG_AP */ 2836#ifdef CONFIG_P2P 2837 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa, 2838 data->rx_probe_req.da, 2839 data->rx_probe_req.bssid, 2840 data->rx_probe_req.ie, 2841 data->rx_probe_req.ie_len, 2842 data->rx_probe_req.ssi_signal); 2843#endif /* CONFIG_P2P */ 2844 break; 2845 case EVENT_REMAIN_ON_CHANNEL: 2846#ifdef CONFIG_OFFCHANNEL 2847 offchannel_remain_on_channel_cb( 2848 wpa_s, data->remain_on_channel.freq, 2849 data->remain_on_channel.duration); 2850#endif /* CONFIG_OFFCHANNEL */ 2851#ifdef CONFIG_P2P 2852 wpas_p2p_remain_on_channel_cb( 2853 wpa_s, data->remain_on_channel.freq, 2854 data->remain_on_channel.duration); 2855#endif /* CONFIG_P2P */ 2856 break; 2857 case EVENT_CANCEL_REMAIN_ON_CHANNEL: 2858#ifdef CONFIG_OFFCHANNEL 2859 offchannel_cancel_remain_on_channel_cb( 2860 wpa_s, data->remain_on_channel.freq); 2861#endif /* CONFIG_OFFCHANNEL */ 2862#ifdef CONFIG_P2P 2863 wpas_p2p_cancel_remain_on_channel_cb( 2864 wpa_s, data->remain_on_channel.freq); 2865#endif /* CONFIG_P2P */ 2866 break; 2867#ifdef CONFIG_P2P 2868 case EVENT_P2P_DEV_FOUND: { 2869 struct p2p_peer_info peer_info; 2870 2871 os_memset(&peer_info, 0, sizeof(peer_info)); 2872 if (data->p2p_dev_found.dev_addr) 2873 os_memcpy(peer_info.p2p_device_addr, 2874 data->p2p_dev_found.dev_addr, ETH_ALEN); 2875 if (data->p2p_dev_found.pri_dev_type) 2876 os_memcpy(peer_info.pri_dev_type, 2877 data->p2p_dev_found.pri_dev_type, 2878 sizeof(peer_info.pri_dev_type)); 2879 if (data->p2p_dev_found.dev_name) 2880 os_strlcpy(peer_info.device_name, 2881 data->p2p_dev_found.dev_name, 2882 sizeof(peer_info.device_name)); 2883 peer_info.config_methods = data->p2p_dev_found.config_methods; 2884 peer_info.dev_capab = data->p2p_dev_found.dev_capab; 2885 peer_info.group_capab = data->p2p_dev_found.group_capab; 2886 2887 /* 2888 * FIX: new_device=1 is not necessarily correct. We should 2889 * maintain a P2P peer database in wpa_supplicant and update 2890 * this information based on whether the peer is truly new. 2891 */ 2892 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1); 2893 break; 2894 } 2895 case EVENT_P2P_GO_NEG_REQ_RX: 2896 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src, 2897 data->p2p_go_neg_req_rx.dev_passwd_id); 2898 break; 2899 case EVENT_P2P_GO_NEG_COMPLETED: 2900 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res); 2901 break; 2902 case EVENT_P2P_PROV_DISC_REQUEST: 2903 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer, 2904 data->p2p_prov_disc_req.config_methods, 2905 data->p2p_prov_disc_req.dev_addr, 2906 data->p2p_prov_disc_req.pri_dev_type, 2907 data->p2p_prov_disc_req.dev_name, 2908 data->p2p_prov_disc_req.supp_config_methods, 2909 data->p2p_prov_disc_req.dev_capab, 2910 data->p2p_prov_disc_req.group_capab, 2911 NULL, 0); 2912 break; 2913 case EVENT_P2P_PROV_DISC_RESPONSE: 2914 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer, 2915 data->p2p_prov_disc_resp.config_methods); 2916 break; 2917 case EVENT_P2P_SD_REQUEST: 2918 wpas_sd_request(wpa_s, data->p2p_sd_req.freq, 2919 data->p2p_sd_req.sa, 2920 data->p2p_sd_req.dialog_token, 2921 data->p2p_sd_req.update_indic, 2922 data->p2p_sd_req.tlvs, 2923 data->p2p_sd_req.tlvs_len); 2924 break; 2925 case EVENT_P2P_SD_RESPONSE: 2926 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa, 2927 data->p2p_sd_resp.update_indic, 2928 data->p2p_sd_resp.tlvs, 2929 data->p2p_sd_resp.tlvs_len); 2930 break; 2931#endif /* CONFIG_P2P */ 2932 case EVENT_EAPOL_RX: 2933 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, 2934 data->eapol_rx.data, 2935 data->eapol_rx.data_len); 2936 break; 2937 case EVENT_SIGNAL_CHANGE: 2938 bgscan_notify_signal_change( 2939 wpa_s, data->signal_change.above_threshold, 2940 data->signal_change.current_signal, 2941 data->signal_change.current_noise, 2942 data->signal_change.current_txrate); 2943 break; 2944 case EVENT_INTERFACE_ENABLED: 2945 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); 2946 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 2947 wpa_supplicant_update_mac_addr(wpa_s); 2948#ifdef CONFIG_AP 2949 if (!wpa_s->ap_iface) { 2950 wpa_supplicant_set_state(wpa_s, 2951 WPA_DISCONNECTED); 2952 wpa_supplicant_req_scan(wpa_s, 0, 0); 2953 } else 2954 wpa_supplicant_set_state(wpa_s, 2955 WPA_COMPLETED); 2956#else /* CONFIG_AP */ 2957 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 2958 wpa_supplicant_req_scan(wpa_s, 0, 0); 2959#endif /* CONFIG_AP */ 2960 } 2961 break; 2962 case EVENT_INTERFACE_DISABLED: 2963 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); 2964 wpa_supplicant_mark_disassoc(wpa_s); 2965 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2966 break; 2967 case EVENT_CHANNEL_LIST_CHANGED: 2968 if (wpa_s->drv_priv == NULL) 2969 break; /* Ignore event during drv initialization */ 2970 2971 free_hw_features(wpa_s); 2972 wpa_s->hw.modes = wpa_drv_get_hw_feature_data( 2973 wpa_s, &wpa_s->hw.num_modes, &wpa_s->hw.flags); 2974 2975#ifdef CONFIG_P2P 2976 wpas_p2p_update_channel_list(wpa_s); 2977#endif /* CONFIG_P2P */ 2978 break; 2979 case EVENT_INTERFACE_UNAVAILABLE: 2980#ifdef CONFIG_P2P 2981 wpas_p2p_interface_unavailable(wpa_s); 2982#endif /* CONFIG_P2P */ 2983 break; 2984 case EVENT_BEST_CHANNEL: 2985 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " 2986 "(%d %d %d)", 2987 data->best_chan.freq_24, data->best_chan.freq_5, 2988 data->best_chan.freq_overall); 2989 wpa_s->best_24_freq = data->best_chan.freq_24; 2990 wpa_s->best_5_freq = data->best_chan.freq_5; 2991 wpa_s->best_overall_freq = data->best_chan.freq_overall; 2992#ifdef CONFIG_P2P 2993 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, 2994 data->best_chan.freq_5, 2995 data->best_chan.freq_overall); 2996#endif /* CONFIG_P2P */ 2997 break; 2998 case EVENT_UNPROT_DEAUTH: 2999 wpa_supplicant_event_unprot_deauth(wpa_s, 3000 &data->unprot_deauth); 3001 break; 3002 case EVENT_UNPROT_DISASSOC: 3003 wpa_supplicant_event_unprot_disassoc(wpa_s, 3004 &data->unprot_disassoc); 3005 break; 3006 case EVENT_STATION_LOW_ACK: 3007#ifdef CONFIG_AP 3008 if (wpa_s->ap_iface && data) 3009 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], 3010 data->low_ack.addr); 3011#endif /* CONFIG_AP */ 3012#ifdef CONFIG_TDLS 3013 if (data) 3014 wpa_tdls_disable_link(wpa_s->wpa, data->low_ack.addr); 3015#endif /* CONFIG_TDLS */ 3016 break; 3017 case EVENT_IBSS_PEER_LOST: 3018#ifdef CONFIG_IBSS_RSN 3019 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer); 3020#endif /* CONFIG_IBSS_RSN */ 3021 break; 3022 case EVENT_DRIVER_GTK_REKEY: 3023 if (os_memcmp(data->driver_gtk_rekey.bssid, 3024 wpa_s->bssid, ETH_ALEN)) 3025 break; 3026 if (!wpa_s->wpa) 3027 break; 3028 wpa_sm_update_replay_ctr(wpa_s->wpa, 3029 data->driver_gtk_rekey.replay_ctr); 3030 break; 3031 case EVENT_SCHED_SCAN_STOPPED: 3032 wpa_s->sched_scanning = 0; 3033 wpa_supplicant_notify_scanning(wpa_s, 0); 3034 3035 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 3036 break; 3037 3038 /* 3039 * If we timed out, start a new sched scan to continue 3040 * searching for more SSIDs. 3041 */ 3042 if (wpa_s->sched_scan_timed_out) 3043 wpa_supplicant_req_sched_scan(wpa_s); 3044 break; 3045 case EVENT_WPS_BUTTON_PUSHED: 3046#ifdef CONFIG_WPS 3047 wpas_wps_start_pbc(wpa_s, NULL, 0); 3048#endif /* CONFIG_WPS */ 3049 break; 3050 default: 3051 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); 3052 break; 3053 } 3054} 3055