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