1 /* 2 * WPA Supplicant - Driver event processing 3 * Copyright (c) 2003-2011, Jouni Malinen <j (at) w1.fi> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 * 9 * Alternatively, this software may be distributed under the terms of BSD 10 * license. 11 * 12 * See README and COPYING for more details. 13 */ 14 15 #include "includes.h" 16 17 #include "common.h" 18 #include "eapol_supp/eapol_supp_sm.h" 19 #include "rsn_supp/wpa.h" 20 #include "eloop.h" 21 #include "config.h" 22 #include "l2_packet/l2_packet.h" 23 #include "wpa_supplicant_i.h" 24 #include "driver_i.h" 25 #include "pcsc_funcs.h" 26 #include "rsn_supp/preauth.h" 27 #include "rsn_supp/pmksa_cache.h" 28 #include "common/wpa_ctrl.h" 29 #include "eap_peer/eap.h" 30 #include "ap/hostapd.h" 31 #include "p2p/p2p.h" 32 #include "notify.h" 33 #include "common/ieee802_11_defs.h" 34 #include "common/ieee802_11_common.h" 35 #include "crypto/random.h" 36 #include "blacklist.h" 37 #include "wpas_glue.h" 38 #include "wps_supplicant.h" 39 #include "ibss_rsn.h" 40 #include "sme.h" 41 #include "p2p_supplicant.h" 42 #include "bgscan.h" 43 #include "ap.h" 44 #include "bss.h" 45 #include "mlme.h" 46 #include "scan.h" 47 48 49 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s) 50 { 51 struct wpa_ssid *ssid, *old_ssid; 52 53 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) 54 return 0; 55 56 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association " 57 "information"); 58 ssid = wpa_supplicant_get_ssid(wpa_s); 59 if (ssid == NULL) { 60 wpa_msg(wpa_s, MSG_INFO, 61 "No network configuration found for the current AP"); 62 return -1; 63 } 64 65 if (ssid->disabled) { 66 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled"); 67 return -1; 68 } 69 70 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the " 71 "current AP"); 72 if (ssid->key_mgmt & (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X | 73 WPA_KEY_MGMT_WPA_NONE | 74 WPA_KEY_MGMT_FT_PSK | WPA_KEY_MGMT_FT_IEEE8021X | 75 WPA_KEY_MGMT_PSK_SHA256 | 76 WPA_KEY_MGMT_IEEE8021X_SHA256)) { 77 u8 wpa_ie[80]; 78 size_t wpa_ie_len = sizeof(wpa_ie); 79 wpa_supplicant_set_suites(wpa_s, NULL, ssid, 80 wpa_ie, &wpa_ie_len); 81 } else { 82 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); 83 } 84 85 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) 86 eapol_sm_invalidate_cached_session(wpa_s->eapol); 87 old_ssid = wpa_s->current_ssid; 88 wpa_s->current_ssid = ssid; 89 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); 90 wpa_supplicant_initiate_eapol(wpa_s); 91 if (old_ssid != wpa_s->current_ssid) 92 wpas_notify_network_changed(wpa_s); 93 94 return 0; 95 } 96 97 98 static void wpa_supplicant_stop_countermeasures(void *eloop_ctx, 99 void *sock_ctx) 100 { 101 struct wpa_supplicant *wpa_s = eloop_ctx; 102 103 if (wpa_s->countermeasures) { 104 wpa_s->countermeasures = 0; 105 wpa_drv_set_countermeasures(wpa_s, 0); 106 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped"); 107 wpa_supplicant_req_scan(wpa_s, 0, 0); 108 } 109 } 110 111 112 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s) 113 { 114 int bssid_changed; 115 116 #ifdef CONFIG_IBSS_RSN 117 ibss_rsn_deinit(wpa_s->ibss_rsn); 118 wpa_s->ibss_rsn = NULL; 119 #endif /* CONFIG_IBSS_RSN */ 120 121 #ifdef CONFIG_AP 122 wpa_supplicant_ap_deinit(wpa_s); 123 #endif /* CONFIG_AP */ 124 125 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 126 return; 127 128 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 129 wpa_s->conf->ap_scan = DEFAULT_AP_SCAN; 130 bssid_changed = !is_zero_ether_addr(wpa_s->bssid); 131 os_memset(wpa_s->bssid, 0, ETH_ALEN); 132 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 133 wpa_s->current_bss = NULL; 134 wpa_s->assoc_freq = 0; 135 #ifdef CONFIG_IEEE80211R 136 #ifdef CONFIG_SME 137 if (wpa_s->sme.ft_ies) 138 sme_update_ft_ies(wpa_s, NULL, NULL, 0); 139 #endif /* CONFIG_SME */ 140 #endif /* CONFIG_IEEE80211R */ 141 142 if (bssid_changed) 143 wpas_notify_bssid_changed(wpa_s); 144 145 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 146 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 147 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 148 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 149 wpa_s->ap_ies_from_associnfo = 0; 150 } 151 152 153 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s) 154 { 155 struct wpa_ie_data ie; 156 int pmksa_set = -1; 157 size_t i; 158 159 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 || 160 ie.pmkid == NULL) 161 return; 162 163 for (i = 0; i < ie.num_pmkid; i++) { 164 pmksa_set = pmksa_cache_set_current(wpa_s->wpa, 165 ie.pmkid + i * PMKID_LEN, 166 NULL, NULL, 0); 167 if (pmksa_set == 0) { 168 eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1); 169 break; 170 } 171 } 172 173 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from " 174 "PMKSA cache", pmksa_set == 0 ? "" : "not "); 175 } 176 177 178 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s, 179 union wpa_event_data *data) 180 { 181 if (data == NULL) { 182 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate " 183 "event"); 184 return; 185 } 186 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR 187 " index=%d preauth=%d", 188 MAC2STR(data->pmkid_candidate.bssid), 189 data->pmkid_candidate.index, 190 data->pmkid_candidate.preauth); 191 192 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid, 193 data->pmkid_candidate.index, 194 data->pmkid_candidate.preauth); 195 } 196 197 198 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s) 199 { 200 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 201 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) 202 return 0; 203 204 #ifdef IEEE8021X_EAPOL 205 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA && 206 wpa_s->current_ssid && 207 !(wpa_s->current_ssid->eapol_flags & 208 (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 209 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) { 210 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either 211 * plaintext or static WEP keys). */ 212 return 0; 213 } 214 #endif /* IEEE8021X_EAPOL */ 215 216 return 1; 217 } 218 219 220 /** 221 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC 222 * @wpa_s: pointer to wpa_supplicant data 223 * @ssid: Configuration data for the network 224 * Returns: 0 on success, -1 on failure 225 * 226 * This function is called when starting authentication with a network that is 227 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA). 228 */ 229 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s, 230 struct wpa_ssid *ssid) 231 { 232 #ifdef IEEE8021X_EAPOL 233 int aka = 0, sim = 0, type; 234 235 if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL) 236 return 0; 237 238 if (ssid->eap.eap_methods == NULL) { 239 sim = 1; 240 aka = 1; 241 } else { 242 struct eap_method_type *eap = ssid->eap.eap_methods; 243 while (eap->vendor != EAP_VENDOR_IETF || 244 eap->method != EAP_TYPE_NONE) { 245 if (eap->vendor == EAP_VENDOR_IETF) { 246 if (eap->method == EAP_TYPE_SIM) 247 sim = 1; 248 else if (eap->method == EAP_TYPE_AKA) 249 aka = 1; 250 } 251 eap++; 252 } 253 } 254 255 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL) 256 sim = 0; 257 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL) 258 aka = 0; 259 260 if (!sim && !aka) { 261 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to " 262 "use SIM, but neither EAP-SIM nor EAP-AKA are " 263 "enabled"); 264 return 0; 265 } 266 267 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM " 268 "(sim=%d aka=%d) - initialize PCSC", sim, aka); 269 if (sim && aka) 270 type = SCARD_TRY_BOTH; 271 else if (aka) 272 type = SCARD_USIM_ONLY; 273 else 274 type = SCARD_GSM_SIM_ONLY; 275 276 wpa_s->scard = scard_init(type); 277 if (wpa_s->scard == NULL) { 278 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM " 279 "(pcsc-lite)"); 280 return -1; 281 } 282 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); 283 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); 284 #endif /* IEEE8021X_EAPOL */ 285 286 return 0; 287 } 288 289 290 #ifndef CONFIG_NO_SCAN_PROCESSING 291 static int wpa_supplicant_match_privacy(struct wpa_scan_res *bss, 292 struct wpa_ssid *ssid) 293 { 294 int i, privacy = 0; 295 296 if (ssid->mixed_cell) 297 return 1; 298 299 #ifdef CONFIG_WPS 300 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) 301 return 1; 302 #endif /* CONFIG_WPS */ 303 304 for (i = 0; i < NUM_WEP_KEYS; i++) { 305 if (ssid->wep_key_len[i]) { 306 privacy = 1; 307 break; 308 } 309 } 310 #ifdef IEEE8021X_EAPOL 311 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 312 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 313 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) 314 privacy = 1; 315 #endif /* IEEE8021X_EAPOL */ 316 317 if (wpa_key_mgmt_wpa(ssid->key_mgmt)) 318 privacy = 1; 319 320 if (bss->caps & IEEE80211_CAP_PRIVACY) 321 return privacy; 322 return !privacy; 323 } 324 325 326 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s, 327 struct wpa_ssid *ssid, 328 struct wpa_scan_res *bss) 329 { 330 struct wpa_ie_data ie; 331 int proto_match = 0; 332 const u8 *rsn_ie, *wpa_ie; 333 int ret; 334 int wep_ok; 335 336 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss); 337 if (ret >= 0) 338 return ret; 339 340 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */ 341 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) && 342 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 343 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) || 344 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)); 345 346 rsn_ie = wpa_scan_get_ie(bss, WLAN_EID_RSN); 347 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) { 348 proto_match++; 349 350 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) { 351 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - parse " 352 "failed"); 353 break; 354 } 355 356 if (wep_ok && 357 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 358 { 359 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 360 "in RSN IE"); 361 return 1; 362 } 363 364 if (!(ie.proto & ssid->proto)) { 365 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - proto " 366 "mismatch"); 367 break; 368 } 369 370 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 371 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - PTK " 372 "cipher mismatch"); 373 break; 374 } 375 376 if (!(ie.group_cipher & ssid->group_cipher)) { 377 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - GTK " 378 "cipher mismatch"); 379 break; 380 } 381 382 if (!(ie.key_mgmt & ssid->key_mgmt)) { 383 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - key mgmt " 384 "mismatch"); 385 break; 386 } 387 388 #ifdef CONFIG_IEEE80211W 389 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 390 ssid->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) { 391 wpa_dbg(wpa_s, MSG_DEBUG, " skip RSN IE - no mgmt " 392 "frame protection"); 393 break; 394 } 395 #endif /* CONFIG_IEEE80211W */ 396 397 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on RSN IE"); 398 return 1; 399 } 400 401 wpa_ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 402 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) { 403 proto_match++; 404 405 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) { 406 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - parse " 407 "failed"); 408 break; 409 } 410 411 if (wep_ok && 412 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 413 { 414 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on TSN " 415 "in WPA IE"); 416 return 1; 417 } 418 419 if (!(ie.proto & ssid->proto)) { 420 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - proto " 421 "mismatch"); 422 break; 423 } 424 425 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 426 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - PTK " 427 "cipher mismatch"); 428 break; 429 } 430 431 if (!(ie.group_cipher & ssid->group_cipher)) { 432 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - GTK " 433 "cipher mismatch"); 434 break; 435 } 436 437 if (!(ie.key_mgmt & ssid->key_mgmt)) { 438 wpa_dbg(wpa_s, MSG_DEBUG, " skip WPA IE - key mgmt " 439 "mismatch"); 440 break; 441 } 442 443 wpa_dbg(wpa_s, MSG_DEBUG, " selected based on WPA IE"); 444 return 1; 445 } 446 447 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) && 448 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) { 449 wpa_dbg(wpa_s, MSG_DEBUG, " skip - no WPA/RSN proto match"); 450 return 0; 451 } 452 453 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) { 454 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2"); 455 return 1; 456 } 457 458 wpa_dbg(wpa_s, MSG_DEBUG, " reject due to mismatch with " 459 "WPA/WPA2"); 460 461 return 0; 462 } 463 464 465 static int freq_allowed(int *freqs, int freq) 466 { 467 int i; 468 469 if (freqs == NULL) 470 return 1; 471 472 for (i = 0; freqs[i]; i++) 473 if (freqs[i] == freq) 474 return 1; 475 return 0; 476 } 477 478 479 static struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s, 480 int i, struct wpa_scan_res *bss, 481 struct wpa_ssid *group) 482 { 483 const u8 *ssid_; 484 u8 wpa_ie_len, rsn_ie_len, ssid_len; 485 int wpa; 486 struct wpa_blacklist *e; 487 const u8 *ie; 488 struct wpa_ssid *ssid; 489 490 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID); 491 ssid_ = ie ? ie + 2 : (u8 *) ""; 492 ssid_len = ie ? ie[1] : 0; 493 494 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 495 wpa_ie_len = ie ? ie[1] : 0; 496 497 ie = wpa_scan_get_ie(bss, WLAN_EID_RSN); 498 rsn_ie_len = ie ? ie[1] : 0; 499 500 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR " ssid='%s' " 501 "wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d%s", 502 i, MAC2STR(bss->bssid), wpa_ssid_txt(ssid_, ssid_len), 503 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, 504 wpa_scan_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? " wps" : ""); 505 506 e = wpa_blacklist_get(wpa_s, bss->bssid); 507 if (e) { 508 int limit = 1; 509 if (wpa_supplicant_enabled_networks(wpa_s->conf) == 1) { 510 /* 511 * When only a single network is enabled, we can 512 * trigger blacklisting on the first failure. This 513 * should not be done with multiple enabled networks to 514 * avoid getting forced to move into a worse ESS on 515 * single error if there are no other BSSes of the 516 * current ESS. 517 */ 518 limit = 0; 519 } 520 if (e->count > limit) { 521 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 522 "(count=%d limit=%d)", e->count, limit); 523 return NULL; 524 } 525 } 526 527 if (ssid_len == 0) { 528 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known"); 529 return NULL; 530 } 531 532 wpa = wpa_ie_len > 0 || rsn_ie_len > 0; 533 534 for (ssid = group; ssid; ssid = ssid->pnext) { 535 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0); 536 537 if (ssid->disabled) { 538 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled"); 539 continue; 540 } 541 542 #ifdef CONFIG_WPS 543 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) { 544 wpa_dbg(wpa_s, MSG_DEBUG, " skip - blacklisted " 545 "(WPS)"); 546 continue; 547 } 548 549 if (wpa && ssid->ssid_len == 0 && 550 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 551 check_ssid = 0; 552 553 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 554 /* Only allow wildcard SSID match if an AP 555 * advertises active WPS operation that matches 556 * with our mode. */ 557 check_ssid = 1; 558 if (ssid->ssid_len == 0 && 559 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 560 check_ssid = 0; 561 } 562 #endif /* CONFIG_WPS */ 563 564 if (check_ssid && 565 (ssid_len != ssid->ssid_len || 566 os_memcmp(ssid_, ssid->ssid, ssid_len) != 0)) { 567 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID mismatch"); 568 continue; 569 } 570 571 if (ssid->bssid_set && 572 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) { 573 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID mismatch"); 574 continue; 575 } 576 577 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss)) 578 continue; 579 580 if (!wpa && 581 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 582 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) && 583 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) { 584 wpa_dbg(wpa_s, MSG_DEBUG, " skip - non-WPA network " 585 "not allowed"); 586 continue; 587 } 588 589 if (!wpa_supplicant_match_privacy(bss, ssid)) { 590 wpa_dbg(wpa_s, MSG_DEBUG, " skip - privacy " 591 "mismatch"); 592 continue; 593 } 594 595 if (bss->caps & IEEE80211_CAP_IBSS) { 596 wpa_dbg(wpa_s, MSG_DEBUG, " skip - IBSS (adhoc) " 597 "network"); 598 continue; 599 } 600 601 if (!freq_allowed(ssid->freq_list, bss->freq)) { 602 wpa_dbg(wpa_s, MSG_DEBUG, " skip - frequency not " 603 "allowed"); 604 continue; 605 } 606 607 #ifdef CONFIG_P2P 608 /* 609 * TODO: skip the AP if its P2P IE has Group Formation 610 * bit set in the P2P Group Capability Bitmap and we 611 * are not in Group Formation with that device. 612 */ 613 #endif /* CONFIG_P2P */ 614 615 /* Matching configuration found */ 616 return ssid; 617 } 618 619 /* No matching configuration found */ 620 return NULL; 621 } 622 623 624 static struct wpa_bss * 625 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, 626 struct wpa_scan_results *scan_res, 627 struct wpa_ssid *group, 628 struct wpa_ssid **selected_ssid) 629 { 630 size_t i; 631 632 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d", 633 group->priority); 634 635 for (i = 0; i < scan_res->num; i++) { 636 struct wpa_scan_res *bss = scan_res->res[i]; 637 const u8 *ie, *ssid; 638 u8 ssid_len; 639 640 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group); 641 if (!*selected_ssid) 642 continue; 643 644 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID); 645 ssid = ie ? ie + 2 : (u8 *) ""; 646 ssid_len = ie ? ie[1] : 0; 647 648 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR 649 " ssid='%s'", 650 MAC2STR(bss->bssid), wpa_ssid_txt(ssid, ssid_len)); 651 return wpa_bss_get(wpa_s, bss->bssid, ssid, ssid_len); 652 } 653 654 return NULL; 655 } 656 657 658 static struct wpa_bss * 659 wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s, 660 struct wpa_scan_results *scan_res, 661 struct wpa_ssid **selected_ssid) 662 { 663 struct wpa_bss *selected = NULL; 664 int prio; 665 666 while (selected == NULL) { 667 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 668 selected = wpa_supplicant_select_bss( 669 wpa_s, scan_res, wpa_s->conf->pssid[prio], 670 selected_ssid); 671 if (selected) 672 break; 673 } 674 675 if (selected == NULL && wpa_s->blacklist) { 676 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear " 677 "blacklist and try again"); 678 wpa_blacklist_clear(wpa_s); 679 wpa_s->blacklist_cleared++; 680 } else if (selected == NULL) 681 break; 682 } 683 684 return selected; 685 } 686 687 688 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s, 689 int timeout_sec, int timeout_usec) 690 { 691 if (!wpa_supplicant_enabled_networks(wpa_s->conf)) { 692 /* 693 * No networks are enabled; short-circuit request so 694 * we don't wait timeout seconds before transitioning 695 * to INACTIVE state. 696 */ 697 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); 698 return; 699 } 700 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec); 701 } 702 703 #ifdef ANDROID_BRCM_P2P_PATCH 704 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s, 705 #else 706 void wpa_supplicant_connect(struct wpa_supplicant *wpa_s, 707 #endif /* ANDROID_BRCM_P2P_PATCH */ 708 struct wpa_bss *selected, 709 struct wpa_ssid *ssid) 710 { 711 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) { 712 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP 713 "PBC session overlap"); 714 #ifdef CONFIG_P2P 715 if (wpas_p2p_notif_pbc_overlap(wpa_s) == 1) { 716 #ifdef ANDROID_BRCM_P2P_PATCH 717 return -1; 718 #else 719 return; 720 #endif 721 } 722 #endif /* CONFIG_P2P */ 723 724 #ifdef CONFIG_WPS 725 wpas_wps_cancel(wpa_s); 726 #endif /* CONFIG_WPS */ 727 #ifdef ANDROID_BRCM_P2P_PATCH 728 return -1; 729 #else 730 return; 731 #endif /* ANDROID_BRCM_P2P_PATCH */ 732 } 733 734 /* 735 * Do not trigger new association unless the BSSID has changed or if 736 * reassociation is requested. If we are in process of associating with 737 * the selected BSSID, do not trigger new attempt. 738 */ 739 if ((wpa_s->reassociate 740 #ifdef ANDROID_BRCM_P2P_PATCH 741 && (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0) 742 && (wpa_s->wpa_state != WPA_COMPLETED) 743 #endif 744 )|| 745 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 && 746 ((wpa_s->wpa_state != WPA_ASSOCIATING && 747 wpa_s->wpa_state != WPA_AUTHENTICATING) || 748 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) != 749 0))) { 750 if (wpa_supplicant_scard_init(wpa_s, ssid)) { 751 wpa_supplicant_req_new_scan(wpa_s, 10, 0); 752 #ifdef ANDROID_BRCM_P2P_PATCH 753 return 0; 754 #else 755 return; 756 #endif 757 } 758 wpa_msg(wpa_s, MSG_DEBUG, "Request association: " 759 "reassociate: %d selected: "MACSTR " bssid: " MACSTR 760 " pending: " MACSTR " wpa_state: %s", 761 wpa_s->reassociate, MAC2STR(selected->bssid), 762 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), 763 wpa_supplicant_state_txt(wpa_s->wpa_state)); 764 wpa_supplicant_associate(wpa_s, selected, ssid); 765 } else { 766 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated with the " 767 "selected AP"); 768 } 769 #ifdef ANDROID_BRCM_P2P_PATCH 770 return 0; 771 #endif 772 } 773 774 775 static struct wpa_ssid * 776 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s) 777 { 778 int prio; 779 struct wpa_ssid *ssid; 780 781 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 782 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext) 783 { 784 if (ssid->disabled) 785 continue; 786 if (ssid->mode == IEEE80211_MODE_IBSS || 787 ssid->mode == IEEE80211_MODE_AP) 788 return ssid; 789 } 790 } 791 return NULL; 792 } 793 794 795 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based 796 * on BSS added and BSS changed events */ 797 static void wpa_supplicant_rsn_preauth_scan_results( 798 struct wpa_supplicant *wpa_s) 799 { 800 struct wpa_bss *bss; 801 802 if (rsn_preauth_scan_results(wpa_s->wpa) < 0) 803 return; 804 805 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 806 const u8 *ssid, *rsn; 807 808 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID); 809 if (ssid == NULL) 810 continue; 811 812 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); 813 if (rsn == NULL) 814 continue; 815 816 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn); 817 } 818 819 } 820 821 822 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s, 823 struct wpa_bss *selected, 824 struct wpa_ssid *ssid, 825 struct wpa_scan_results *scan_res) 826 { 827 size_t i; 828 struct wpa_scan_res *current_bss = NULL; 829 int min_diff; 830 831 if (wpa_s->reassociate) 832 return 1; /* explicit request to reassociate */ 833 if (wpa_s->wpa_state < WPA_ASSOCIATED) 834 return 1; /* we are not associated; continue */ 835 if (wpa_s->current_ssid == NULL) 836 return 1; /* unknown current SSID */ 837 if (wpa_s->current_ssid != ssid) 838 return 1; /* different network block */ 839 840 for (i = 0; i < scan_res->num; i++) { 841 struct wpa_scan_res *res = scan_res->res[i]; 842 const u8 *ie; 843 if (os_memcmp(res->bssid, wpa_s->bssid, ETH_ALEN) != 0) 844 continue; 845 846 ie = wpa_scan_get_ie(res, WLAN_EID_SSID); 847 if (ie == NULL) 848 continue; 849 if (ie[1] != wpa_s->current_ssid->ssid_len || 850 os_memcmp(ie + 2, wpa_s->current_ssid->ssid, ie[1]) != 0) 851 continue; 852 current_bss = res; 853 break; 854 } 855 856 if (!current_bss) 857 return 1; /* current BSS not seen in scan results */ 858 859 #ifdef CONFIG_ROAMING 860 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation"); 861 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR " level=%d", 862 MAC2STR(current_bss->bssid), current_bss->level); 863 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR " level=%d", 864 MAC2STR(selected->bssid), selected->level); 865 866 if (wpa_s->current_ssid->bssid_set && 867 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) == 868 0) { 869 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS " 870 "has preferred BSSID"); 871 return 1; 872 } 873 874 min_diff = 2; 875 if (current_bss->level < 0) { 876 if (current_bss->level < -85) 877 min_diff = 1; 878 else if (current_bss->level < -80) 879 min_diff = 2; 880 else if (current_bss->level < -75) 881 min_diff = 3; 882 else if (current_bss->level < -70) 883 min_diff = 4; 884 else 885 min_diff = 5; 886 } 887 if (abs(current_bss->level - selected->level) < min_diff) { 888 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - too small difference " 889 "in signal level"); 890 return 0; 891 } 892 893 return 1; 894 #else 895 return 0; 896 #endif 897 } 898 899 /* Return < 0 if no scan results could be fetched. */ 900 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 901 union wpa_event_data *data) 902 { 903 struct wpa_bss *selected; 904 struct wpa_ssid *ssid = NULL; 905 struct wpa_scan_results *scan_res; 906 int ap = 0; 907 908 #ifdef CONFIG_AP 909 if (wpa_s->ap_iface) 910 ap = 1; 911 #endif /* CONFIG_AP */ 912 913 wpa_supplicant_notify_scanning(wpa_s, 0); 914 915 scan_res = wpa_supplicant_get_scan_results(wpa_s, 916 data ? &data->scan_info : 917 NULL, 1); 918 if (scan_res == NULL) { 919 if (wpa_s->conf->ap_scan == 2 || ap) 920 return -1; 921 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try " 922 "scanning again"); 923 wpa_supplicant_req_new_scan(wpa_s, 1, 0); 924 return -1; 925 } 926 927 #ifndef CONFIG_NO_RANDOM_POOL 928 size_t i, num; 929 num = scan_res->num; 930 if (num > 10) 931 num = 10; 932 for (i = 0; i < num; i++) { 933 u8 buf[5]; 934 struct wpa_scan_res *res = scan_res->res[i]; 935 buf[0] = res->bssid[5]; 936 buf[1] = res->qual & 0xff; 937 buf[2] = res->noise & 0xff; 938 buf[3] = res->level & 0xff; 939 buf[4] = res->tsf & 0xff; 940 random_add_randomness(buf, sizeof(buf)); 941 } 942 #endif /* CONFIG_NO_RANDOM_POOL */ 943 944 if (wpa_s->scan_res_handler) { 945 void (*scan_res_handler)(struct wpa_supplicant *wpa_s, 946 struct wpa_scan_results *scan_res); 947 948 scan_res_handler = wpa_s->scan_res_handler; 949 wpa_s->scan_res_handler = NULL; 950 scan_res_handler(wpa_s, scan_res); 951 952 wpa_scan_results_free(scan_res); 953 return 0; 954 } 955 956 if (ap) { 957 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode"); 958 #ifdef CONFIG_AP 959 if (wpa_s->ap_iface->scan_cb) 960 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface); 961 #endif /* CONFIG_AP */ 962 wpa_scan_results_free(scan_res); 963 return 0; 964 } 965 966 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available"); 967 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); 968 wpas_notify_scan_results(wpa_s); 969 970 wpas_notify_scan_done(wpa_s, 1); 971 972 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) { 973 wpa_scan_results_free(scan_res); 974 return 0; 975 } 976 977 if (wpa_s->disconnected) { 978 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 979 wpa_scan_results_free(scan_res); 980 return 0; 981 } 982 983 if (bgscan_notify_scan(wpa_s, scan_res) == 1) { 984 wpa_scan_results_free(scan_res); 985 return 0; 986 } 987 988 selected = wpa_supplicant_pick_network(wpa_s, scan_res, &ssid); 989 990 if (selected) { 991 int skip; 992 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid, 993 scan_res); 994 wpa_scan_results_free(scan_res); 995 if (skip) 996 return 0; 997 #ifdef ANDROID_BRCM_P2P_PATCH 998 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) { 999 wpa_dbg(wpa_s, MSG_DEBUG, "Connect Failed"); 1000 return -1; 1001 } 1002 #else 1003 wpa_supplicant_connect(wpa_s, selected, ssid); 1004 #endif 1005 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1006 } else { 1007 wpa_scan_results_free(scan_res); 1008 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found"); 1009 ssid = wpa_supplicant_pick_new_network(wpa_s); 1010 if (ssid) { 1011 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network"); 1012 wpa_supplicant_associate(wpa_s, NULL, ssid); 1013 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1014 } else { 1015 int timeout_sec = wpa_s->scan_interval; 1016 int timeout_usec = 0; 1017 #ifdef CONFIG_P2P 1018 if (wpa_s->p2p_in_provisioning) { 1019 /* 1020 * Use shorter wait during P2P Provisioning 1021 * state to speed up group formation. 1022 */ 1023 timeout_sec = 0; 1024 timeout_usec = 250000; 1025 } 1026 #endif /* CONFIG_P2P */ 1027 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1028 timeout_usec); 1029 } 1030 } 1031 return 0; 1032 } 1033 1034 1035 static void wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1036 union wpa_event_data *data) 1037 { 1038 const char *rn, *rn2; 1039 struct wpa_supplicant *ifs; 1040 1041 if (_wpa_supplicant_event_scan_results(wpa_s, data) < 0) { 1042 /* 1043 * If no scan results could be fetched, then no need to 1044 * notify those interfaces that did not actually request 1045 * this scan. 1046 */ 1047 return; 1048 } 1049 1050 /* 1051 * Check other interfaces to see if they have the same radio-name. If 1052 * so, they get updated with this same scan info. 1053 */ 1054 if (!wpa_s->driver->get_radio_name) 1055 return; 1056 1057 rn = wpa_s->driver->get_radio_name(wpa_s->drv_priv); 1058 if (rn == NULL || rn[0] == '\0') 1059 return; 1060 1061 wpa_dbg(wpa_s, MSG_DEBUG, "Checking for other virtual interfaces " 1062 "sharing same radio (%s) in event_scan_results", rn); 1063 1064 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) { 1065 if (ifs == wpa_s || !ifs->driver->get_radio_name) 1066 continue; 1067 1068 rn2 = ifs->driver->get_radio_name(ifs->drv_priv); 1069 if (rn2 && os_strcmp(rn, rn2) == 0) { 1070 wpa_printf(MSG_DEBUG, "%s: Updating scan results from " 1071 "sibling", ifs->ifname); 1072 _wpa_supplicant_event_scan_results(ifs, data); 1073 } 1074 } 1075 } 1076 1077 #endif /* CONFIG_NO_SCAN_PROCESSING */ 1078 1079 1080 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s, 1081 union wpa_event_data *data) 1082 { 1083 int l, len, found = 0, wpa_found, rsn_found; 1084 const u8 *p; 1085 1086 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); 1087 if (data->assoc_info.req_ies) 1088 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, 1089 data->assoc_info.req_ies_len); 1090 if (data->assoc_info.resp_ies) { 1091 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, 1092 data->assoc_info.resp_ies_len); 1093 #ifdef CONFIG_TDLS 1094 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies, 1095 data->assoc_info.resp_ies_len); 1096 #endif /* CONFIG_TDLS */ 1097 } 1098 if (data->assoc_info.beacon_ies) 1099 wpa_hexdump(MSG_DEBUG, "beacon_ies", 1100 data->assoc_info.beacon_ies, 1101 data->assoc_info.beacon_ies_len); 1102 if (data->assoc_info.freq) 1103 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", 1104 data->assoc_info.freq); 1105 1106 p = data->assoc_info.req_ies; 1107 l = data->assoc_info.req_ies_len; 1108 1109 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ 1110 while (p && l >= 2) { 1111 len = p[1] + 2; 1112 if (len > l) { 1113 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1114 p, l); 1115 break; 1116 } 1117 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1118 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || 1119 (p[0] == WLAN_EID_RSN && p[1] >= 2)) { 1120 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) 1121 break; 1122 found = 1; 1123 wpa_find_assoc_pmkid(wpa_s); 1124 break; 1125 } 1126 l -= len; 1127 p += len; 1128 } 1129 if (!found && data->assoc_info.req_ies) 1130 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); 1131 1132 #ifdef CONFIG_IEEE80211R 1133 #ifdef CONFIG_SME 1134 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { 1135 u8 bssid[ETH_ALEN]; 1136 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 1137 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 1138 data->assoc_info.resp_ies, 1139 data->assoc_info.resp_ies_len, 1140 bssid) < 0) { 1141 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 1142 "Reassociation Response failed"); 1143 wpa_supplicant_deauthenticate( 1144 wpa_s, WLAN_REASON_INVALID_IE); 1145 return -1; 1146 } 1147 } 1148 1149 p = data->assoc_info.resp_ies; 1150 l = data->assoc_info.resp_ies_len; 1151 1152 #ifdef CONFIG_WPS_STRICT 1153 if (p && wpa_s->current_ssid && 1154 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { 1155 struct wpabuf *wps; 1156 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); 1157 if (wps == NULL) { 1158 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " 1159 "include WPS IE in (Re)Association Response"); 1160 return -1; 1161 } 1162 1163 if (wps_validate_assoc_resp(wps) < 0) { 1164 wpabuf_free(wps); 1165 wpa_supplicant_deauthenticate( 1166 wpa_s, WLAN_REASON_INVALID_IE); 1167 return -1; 1168 } 1169 wpabuf_free(wps); 1170 } 1171 #endif /* CONFIG_WPS_STRICT */ 1172 1173 /* Go through the IEs and make a copy of the MDIE, if present. */ 1174 while (p && l >= 2) { 1175 len = p[1] + 2; 1176 if (len > l) { 1177 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 1178 p, l); 1179 break; 1180 } 1181 if (p[0] == WLAN_EID_MOBILITY_DOMAIN && 1182 p[1] >= MOBILITY_DOMAIN_ID_LEN) { 1183 wpa_s->sme.ft_used = 1; 1184 os_memcpy(wpa_s->sme.mobility_domain, p + 2, 1185 MOBILITY_DOMAIN_ID_LEN); 1186 break; 1187 } 1188 l -= len; 1189 p += len; 1190 } 1191 #endif /* CONFIG_SME */ 1192 1193 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, 1194 data->assoc_info.resp_ies_len); 1195 #endif /* CONFIG_IEEE80211R */ 1196 1197 /* WPA/RSN IE from Beacon/ProbeResp */ 1198 p = data->assoc_info.beacon_ies; 1199 l = data->assoc_info.beacon_ies_len; 1200 1201 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. 1202 */ 1203 wpa_found = rsn_found = 0; 1204 while (p && l >= 2) { 1205 len = p[1] + 2; 1206 if (len > l) { 1207 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", 1208 p, l); 1209 break; 1210 } 1211 if (!wpa_found && 1212 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 1213 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { 1214 wpa_found = 1; 1215 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); 1216 } 1217 1218 if (!rsn_found && 1219 p[0] == WLAN_EID_RSN && p[1] >= 2) { 1220 rsn_found = 1; 1221 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); 1222 } 1223 1224 l -= len; 1225 p += len; 1226 } 1227 1228 if (!wpa_found && data->assoc_info.beacon_ies) 1229 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); 1230 if (!rsn_found && data->assoc_info.beacon_ies) 1231 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); 1232 if (wpa_found || rsn_found) 1233 wpa_s->ap_ies_from_associnfo = 1; 1234 1235 if (wpa_s->assoc_freq && data->assoc_info.freq && 1236 wpa_s->assoc_freq != data->assoc_info.freq) { 1237 wpa_printf(MSG_DEBUG, "Operating frequency changed from " 1238 "%u to %u MHz", 1239 wpa_s->assoc_freq, data->assoc_info.freq); 1240 wpa_supplicant_update_scan_results(wpa_s); 1241 } 1242 1243 wpa_s->assoc_freq = data->assoc_info.freq; 1244 1245 return 0; 1246 } 1247 1248 1249 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, 1250 union wpa_event_data *data) 1251 { 1252 u8 bssid[ETH_ALEN]; 1253 int ft_completed; 1254 int bssid_changed; 1255 struct wpa_driver_capa capa; 1256 1257 #ifdef CONFIG_AP 1258 if (wpa_s->ap_iface) { 1259 hostapd_notif_assoc(wpa_s->ap_iface->bss[0], 1260 data->assoc_info.addr, 1261 data->assoc_info.req_ies, 1262 data->assoc_info.req_ies_len, 1263 data->assoc_info.reassoc); 1264 return; 1265 } 1266 #endif /* CONFIG_AP */ 1267 1268 ft_completed = wpa_ft_is_completed(wpa_s->wpa); 1269 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) 1270 return; 1271 1272 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); 1273 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) 1274 os_memcpy(bssid, wpa_s->bssid, ETH_ALEN); 1275 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_USER_SPACE_MLME) || 1276 (wpa_drv_get_bssid(wpa_s, bssid) >= 0 && 1277 os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0)) { 1278 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" 1279 MACSTR, MAC2STR(bssid)); 1280 random_add_randomness(bssid, ETH_ALEN); 1281 bssid_changed = os_memcmp(wpa_s->bssid, bssid, ETH_ALEN); 1282 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); 1283 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 1284 if (bssid_changed) 1285 wpas_notify_bssid_changed(wpa_s); 1286 1287 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { 1288 wpa_clear_keys(wpa_s, bssid); 1289 } 1290 if (wpa_supplicant_select_config(wpa_s) < 0) { 1291 wpa_supplicant_disassociate( 1292 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1293 return; 1294 } 1295 if (wpa_s->current_ssid) { 1296 struct wpa_bss *bss = NULL; 1297 struct wpa_ssid *ssid = wpa_s->current_ssid; 1298 if (ssid->ssid_len > 0) 1299 bss = wpa_bss_get(wpa_s, bssid, 1300 ssid->ssid, ssid->ssid_len); 1301 if (!bss) 1302 bss = wpa_bss_get_bssid(wpa_s, bssid); 1303 if (bss) 1304 wpa_s->current_bss = bss; 1305 } 1306 } 1307 1308 #ifdef CONFIG_SME 1309 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); 1310 wpa_s->sme.prev_bssid_set = 1; 1311 #endif /* CONFIG_SME */ 1312 1313 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); 1314 if (wpa_s->current_ssid) { 1315 /* When using scanning (ap_scan=1), SIM PC/SC interface can be 1316 * initialized before association, but for other modes, 1317 * initialize PC/SC here, if the current configuration needs 1318 * smartcard or SIM/USIM. */ 1319 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); 1320 } 1321 wpa_sm_notify_assoc(wpa_s->wpa, bssid); 1322 if (wpa_s->l2) 1323 l2_packet_notify_auth_start(wpa_s->l2); 1324 1325 /* 1326 * Set portEnabled first to FALSE in order to get EAP state machine out 1327 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE 1328 * state machine may transit to AUTHENTICATING state based on obsolete 1329 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to 1330 * AUTHENTICATED without ever giving chance to EAP state machine to 1331 * reset the state. 1332 */ 1333 if (!ft_completed) { 1334 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 1335 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 1336 } 1337 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed) 1338 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 1339 /* 802.1X::portControl = Auto */ 1340 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); 1341 wpa_s->eapol_received = 0; 1342 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1343 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || 1344 (wpa_s->current_ssid && 1345 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { 1346 wpa_supplicant_cancel_auth_timeout(wpa_s); 1347 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1348 } else if (!ft_completed) { 1349 /* Timeout for receiving the first EAPOL packet */ 1350 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); 1351 } 1352 wpa_supplicant_cancel_scan(wpa_s); 1353 1354 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1355 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { 1356 /* 1357 * We are done; the driver will take care of RSN 4-way 1358 * handshake. 1359 */ 1360 wpa_supplicant_cancel_auth_timeout(wpa_s); 1361 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1362 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1363 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1364 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 1365 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { 1366 /* 1367 * The driver will take care of RSN 4-way handshake, so we need 1368 * to allow EAPOL supplicant to complete its work without 1369 * waiting for WPA supplicant. 1370 */ 1371 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1372 } else if (ft_completed) { 1373 /* 1374 * FT protocol completed - make sure EAPOL state machine ends 1375 * up in authenticated. 1376 */ 1377 wpa_supplicant_cancel_auth_timeout(wpa_s); 1378 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 1379 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 1380 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 1381 } 1382 1383 if (wpa_s->pending_eapol_rx) { 1384 struct os_time now, age; 1385 os_get_time(&now); 1386 os_time_sub(&now, &wpa_s->pending_eapol_rx_time, &age); 1387 if (age.sec == 0 && age.usec < 100000 && 1388 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == 1389 0) { 1390 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " 1391 "frame that was received just before " 1392 "association notification"); 1393 wpa_supplicant_rx_eapol( 1394 wpa_s, wpa_s->pending_eapol_rx_src, 1395 wpabuf_head(wpa_s->pending_eapol_rx), 1396 wpabuf_len(wpa_s->pending_eapol_rx)); 1397 } 1398 wpabuf_free(wpa_s->pending_eapol_rx); 1399 wpa_s->pending_eapol_rx = NULL; 1400 } 1401 1402 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 1403 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 1404 wpa_s->current_ssid && wpa_drv_get_capa(wpa_s, &capa) == 0 && 1405 capa.flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE) { 1406 /* Set static WEP keys again */ 1407 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); 1408 } 1409 1410 #ifdef CONFIG_IBSS_RSN 1411 if (wpa_s->current_ssid && 1412 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 1413 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && 1414 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE && 1415 wpa_s->ibss_rsn == NULL) { 1416 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s); 1417 if (!wpa_s->ibss_rsn) { 1418 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN"); 1419 wpa_supplicant_deauthenticate( 1420 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1421 return; 1422 } 1423 1424 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk); 1425 } 1426 #endif /* CONFIG_IBSS_RSN */ 1427 } 1428 1429 1430 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s, 1431 u16 reason_code) 1432 { 1433 const u8 *bssid; 1434 int authenticating; 1435 u8 prev_pending_bssid[ETH_ALEN]; 1436 1437 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING; 1438 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN); 1439 1440 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 1441 /* 1442 * At least Host AP driver and a Prism3 card seemed to be 1443 * generating streams of disconnected events when configuring 1444 * IBSS for WPA-None. Ignore them for now. 1445 */ 1446 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in " 1447 "IBSS/WPA-None mode"); 1448 return; 1449 } 1450 1451 if (wpa_s->wpa_state == WPA_4WAY_HANDSHAKE && 1452 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { 1453 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - " 1454 "pre-shared key may be incorrect"); 1455 } 1456 if (!wpa_s->auto_reconnect_disabled || 1457 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS) { 1458 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Auto connect enabled: try to " 1459 "reconnect (wps=%d)", 1460 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS); 1461 if (wpa_s->wpa_state >= WPA_ASSOCIATING) 1462 wpa_supplicant_req_scan(wpa_s, 0, 500000); 1463 } else { 1464 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Auto connect disabled: do not " 1465 "try to re-connect"); 1466 wpa_s->reassociate = 0; 1467 wpa_s->disconnected = 1; 1468 } 1469 bssid = wpa_s->bssid; 1470 if (is_zero_ether_addr(bssid)) 1471 bssid = wpa_s->pending_bssid; 1472 wpas_connection_failed(wpa_s, bssid); 1473 wpa_sm_notify_disassoc(wpa_s->wpa); 1474 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR 1475 " reason=%d", 1476 MAC2STR(bssid), reason_code); 1477 if (wpa_supplicant_dynamic_keys(wpa_s)) { 1478 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys"); 1479 wpa_s->keys_cleared = 0; 1480 wpa_clear_keys(wpa_s, wpa_s->bssid); 1481 } 1482 wpa_supplicant_mark_disassoc(wpa_s); 1483 1484 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) 1485 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); 1486 } 1487 1488 1489 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 1490 static void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, 1491 void *sock_ctx) 1492 { 1493 struct wpa_supplicant *wpa_s = eloop_ctx; 1494 1495 if (!wpa_s->pending_mic_error_report) 1496 return; 1497 1498 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report"); 1499 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise); 1500 wpa_s->pending_mic_error_report = 0; 1501 } 1502 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 1503 1504 1505 static void 1506 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s, 1507 union wpa_event_data *data) 1508 { 1509 int pairwise; 1510 struct os_time t; 1511 1512 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); 1513 pairwise = (data && data->michael_mic_failure.unicast); 1514 os_get_time(&t); 1515 if ((wpa_s->last_michael_mic_error && 1516 t.sec - wpa_s->last_michael_mic_error <= 60) || 1517 wpa_s->pending_mic_error_report) { 1518 if (wpa_s->pending_mic_error_report) { 1519 /* 1520 * Send the pending MIC error report immediately since 1521 * we are going to start countermeasures and AP better 1522 * do the same. 1523 */ 1524 wpa_sm_key_request(wpa_s->wpa, 1, 1525 wpa_s->pending_mic_error_pairwise); 1526 } 1527 1528 /* Send the new MIC error report immediately since we are going 1529 * to start countermeasures and AP better do the same. 1530 */ 1531 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 1532 1533 /* initialize countermeasures */ 1534 wpa_s->countermeasures = 1; 1535 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started"); 1536 1537 /* 1538 * Need to wait for completion of request frame. We do not get 1539 * any callback for the message completion, so just wait a 1540 * short while and hope for the best. */ 1541 os_sleep(0, 10000); 1542 1543 wpa_drv_set_countermeasures(wpa_s, 1); 1544 wpa_supplicant_deauthenticate(wpa_s, 1545 WLAN_REASON_MICHAEL_MIC_FAILURE); 1546 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, 1547 wpa_s, NULL); 1548 eloop_register_timeout(60, 0, 1549 wpa_supplicant_stop_countermeasures, 1550 wpa_s, NULL); 1551 /* TODO: mark the AP rejected for 60 second. STA is 1552 * allowed to associate with another AP.. */ 1553 } else { 1554 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 1555 if (wpa_s->mic_errors_seen) { 1556 /* 1557 * Reduce the effectiveness of Michael MIC error 1558 * reports as a means for attacking against TKIP if 1559 * more than one MIC failure is noticed with the same 1560 * PTK. We delay the transmission of the reports by a 1561 * random time between 0 and 60 seconds in order to 1562 * force the attacker wait 60 seconds before getting 1563 * the information on whether a frame resulted in a MIC 1564 * failure. 1565 */ 1566 u8 rval[4]; 1567 int sec; 1568 1569 if (os_get_random(rval, sizeof(rval)) < 0) 1570 sec = os_random() % 60; 1571 else 1572 sec = WPA_GET_BE32(rval) % 60; 1573 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error " 1574 "report %d seconds", sec); 1575 wpa_s->pending_mic_error_report = 1; 1576 wpa_s->pending_mic_error_pairwise = pairwise; 1577 eloop_cancel_timeout( 1578 wpa_supplicant_delayed_mic_error_report, 1579 wpa_s, NULL); 1580 eloop_register_timeout( 1581 sec, os_random() % 1000000, 1582 wpa_supplicant_delayed_mic_error_report, 1583 wpa_s, NULL); 1584 } else { 1585 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 1586 } 1587 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 1588 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 1589 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 1590 } 1591 wpa_s->last_michael_mic_error = t.sec; 1592 wpa_s->mic_errors_seen++; 1593 } 1594 1595 1596 #ifdef CONFIG_TERMINATE_ONLASTIF 1597 static int any_interfaces(struct wpa_supplicant *head) 1598 { 1599 struct wpa_supplicant *wpa_s; 1600 1601 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) 1602 if (!wpa_s->interface_removed) 1603 return 1; 1604 return 0; 1605 } 1606 #endif /* CONFIG_TERMINATE_ONLASTIF */ 1607 1608 1609 static void 1610 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, 1611 union wpa_event_data *data) 1612 { 1613 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) 1614 return; 1615 1616 switch (data->interface_status.ievent) { 1617 case EVENT_INTERFACE_ADDED: 1618 if (!wpa_s->interface_removed) 1619 break; 1620 wpa_s->interface_removed = 0; 1621 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); 1622 if (wpa_supplicant_driver_init(wpa_s) < 0) { 1623 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " 1624 "driver after interface was added"); 1625 } 1626 break; 1627 case EVENT_INTERFACE_REMOVED: 1628 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed"); 1629 wpa_s->interface_removed = 1; 1630 wpa_supplicant_mark_disassoc(wpa_s); 1631 l2_packet_deinit(wpa_s->l2); 1632 wpa_s->l2 = NULL; 1633 #ifdef CONFIG_IBSS_RSN 1634 ibss_rsn_deinit(wpa_s->ibss_rsn); 1635 wpa_s->ibss_rsn = NULL; 1636 #endif /* CONFIG_IBSS_RSN */ 1637 #ifdef CONFIG_TERMINATE_ONLASTIF 1638 /* check if last interface */ 1639 if (!any_interfaces(wpa_s->global->ifaces)) 1640 eloop_terminate(); 1641 #endif /* CONFIG_TERMINATE_ONLASTIF */ 1642 break; 1643 } 1644 } 1645 1646 1647 #ifdef CONFIG_PEERKEY 1648 static void 1649 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s, 1650 union wpa_event_data *data) 1651 { 1652 if (data == NULL) 1653 return; 1654 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer); 1655 } 1656 #endif /* CONFIG_PEERKEY */ 1657 1658 1659 #ifdef CONFIG_TDLS 1660 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s, 1661 union wpa_event_data *data) 1662 { 1663 if (data == NULL) 1664 return; 1665 switch (data->tdls.oper) { 1666 case TDLS_REQUEST_SETUP: 1667 wpa_tdls_start(wpa_s->wpa, data->tdls.peer); 1668 break; 1669 case TDLS_REQUEST_TEARDOWN: 1670 /* request from driver to add FTIE */ 1671 wpa_tdls_recv_teardown_notify(wpa_s->wpa, data->tdls.peer, 1672 data->tdls.reason_code); 1673 break; 1674 } 1675 } 1676 #endif /* CONFIG_TDLS */ 1677 1678 1679 #ifdef CONFIG_IEEE80211R 1680 static void 1681 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s, 1682 union wpa_event_data *data) 1683 { 1684 if (data == NULL) 1685 return; 1686 1687 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies, 1688 data->ft_ies.ies_len, 1689 data->ft_ies.ft_action, 1690 data->ft_ies.target_ap, 1691 data->ft_ies.ric_ies, 1692 data->ft_ies.ric_ies_len) < 0) { 1693 /* TODO: prevent MLME/driver from trying to associate? */ 1694 } 1695 } 1696 #endif /* CONFIG_IEEE80211R */ 1697 1698 1699 #ifdef CONFIG_IBSS_RSN 1700 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s, 1701 union wpa_event_data *data) 1702 { 1703 struct wpa_ssid *ssid; 1704 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1705 return; 1706 if (data == NULL) 1707 return; 1708 ssid = wpa_s->current_ssid; 1709 if (ssid == NULL) 1710 return; 1711 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 1712 return; 1713 1714 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer); 1715 } 1716 #endif /* CONFIG_IBSS_RSN */ 1717 1718 1719 #ifdef CONFIG_IEEE80211R 1720 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, 1721 size_t len) 1722 { 1723 const u8 *sta_addr, *target_ap_addr; 1724 u16 status; 1725 1726 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); 1727 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) 1728 return; /* only SME case supported for now */ 1729 if (len < 1 + 2 * ETH_ALEN + 2) 1730 return; 1731 if (data[0] != 2) 1732 return; /* Only FT Action Response is supported for now */ 1733 sta_addr = data + 1; 1734 target_ap_addr = data + 1 + ETH_ALEN; 1735 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); 1736 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " 1737 MACSTR " TargetAP " MACSTR " status %u", 1738 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); 1739 1740 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { 1741 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR 1742 " in FT Action Response", MAC2STR(sta_addr)); 1743 return; 1744 } 1745 1746 if (status) { 1747 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " 1748 "failure (status code %d)", status); 1749 /* TODO: report error to FT code(?) */ 1750 return; 1751 } 1752 1753 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, 1754 len - (1 + 2 * ETH_ALEN + 2), 1, 1755 target_ap_addr, NULL, 0) < 0) 1756 return; 1757 1758 #ifdef CONFIG_SME 1759 { 1760 struct wpa_bss *bss; 1761 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); 1762 if (bss) 1763 wpa_s->sme.freq = bss->freq; 1764 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; 1765 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, 1766 WLAN_AUTH_FT); 1767 } 1768 #endif /* CONFIG_SME */ 1769 } 1770 #endif /* CONFIG_IEEE80211R */ 1771 1772 1773 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, 1774 struct unprot_deauth *e) 1775 { 1776 #ifdef CONFIG_IEEE80211W 1777 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " 1778 "dropped: " MACSTR " -> " MACSTR 1779 " (reason code %u)", 1780 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 1781 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 1782 #endif /* CONFIG_IEEE80211W */ 1783 } 1784 1785 1786 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, 1787 struct unprot_disassoc *e) 1788 { 1789 #ifdef CONFIG_IEEE80211W 1790 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " 1791 "dropped: " MACSTR " -> " MACSTR 1792 " (reason code %u)", 1793 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 1794 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 1795 #endif /* CONFIG_IEEE80211W */ 1796 } 1797 1798 1799 void wpa_supplicant_event(void *ctx, enum wpa_event_type event, 1800 union wpa_event_data *data) 1801 { 1802 struct wpa_supplicant *wpa_s = ctx; 1803 u16 reason_code = 0; 1804 1805 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && 1806 event != EVENT_INTERFACE_ENABLED && 1807 event != EVENT_INTERFACE_STATUS) { 1808 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore event %d while interface is " 1809 "disabled", event); 1810 return; 1811 } 1812 1813 wpa_dbg(wpa_s, MSG_DEBUG, "Event %d received on interface %s", 1814 event, wpa_s->ifname); 1815 1816 switch (event) { 1817 case EVENT_AUTH: 1818 sme_event_auth(wpa_s, data); 1819 break; 1820 case EVENT_ASSOC: 1821 wpa_supplicant_event_assoc(wpa_s, data); 1822 break; 1823 case EVENT_DISASSOC: 1824 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); 1825 if (data) { 1826 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u", 1827 data->disassoc_info.reason_code); 1828 if (data->disassoc_info.addr) 1829 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 1830 MAC2STR(data->disassoc_info.addr)); 1831 } 1832 #ifdef CONFIG_AP 1833 if (wpa_s->ap_iface && data && data->disassoc_info.addr) { 1834 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], 1835 data->disassoc_info.addr); 1836 break; 1837 } 1838 #endif /* CONFIG_AP */ 1839 if (data) { 1840 reason_code = data->disassoc_info.reason_code; 1841 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", 1842 data->disassoc_info.ie, 1843 data->disassoc_info.ie_len); 1844 #ifdef CONFIG_P2P 1845 wpas_p2p_disassoc_notif( 1846 wpa_s, data->disassoc_info.addr, reason_code, 1847 data->disassoc_info.ie, 1848 data->disassoc_info.ie_len); 1849 #endif /* CONFIG_P2P */ 1850 } 1851 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 1852 sme_event_disassoc(wpa_s, data); 1853 /* fall through */ 1854 case EVENT_DEAUTH: 1855 if (event == EVENT_DEAUTH) { 1856 wpa_dbg(wpa_s, MSG_DEBUG, 1857 "Deauthentication notification"); 1858 if (data) { 1859 reason_code = data->deauth_info.reason_code; 1860 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u", 1861 data->deauth_info.reason_code); 1862 if (data->deauth_info.addr) { 1863 wpa_dbg(wpa_s, MSG_DEBUG, " * address " 1864 MACSTR, 1865 MAC2STR(data->deauth_info. 1866 addr)); 1867 } 1868 wpa_hexdump(MSG_DEBUG, 1869 "Deauthentication frame IE(s)", 1870 data->deauth_info.ie, 1871 data->deauth_info.ie_len); 1872 #ifdef CONFIG_P2P 1873 wpas_p2p_deauth_notif( 1874 wpa_s, data->deauth_info.addr, 1875 reason_code, 1876 data->deauth_info.ie, 1877 data->deauth_info.ie_len); 1878 #endif /* CONFIG_P2P */ 1879 } 1880 } 1881 #ifdef CONFIG_AP 1882 if (wpa_s->ap_iface && data && data->deauth_info.addr) { 1883 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], 1884 data->deauth_info.addr); 1885 break; 1886 } 1887 #endif /* CONFIG_AP */ 1888 wpa_supplicant_event_disassoc(wpa_s, reason_code); 1889 1890 #if defined(ANDROID_BRCM_P2P_PATCH) && defined(CONFIG_P2P) 1891 wpas_p2p_group_remove_notif(wpa_s, reason_code); 1892 #endif 1893 1894 break; 1895 case EVENT_MICHAEL_MIC_FAILURE: 1896 wpa_supplicant_event_michael_mic_failure(wpa_s, data); 1897 break; 1898 #ifndef CONFIG_NO_SCAN_PROCESSING 1899 case EVENT_SCAN_RESULTS: 1900 wpa_supplicant_event_scan_results(wpa_s, data); 1901 break; 1902 #endif /* CONFIG_NO_SCAN_PROCESSING */ 1903 case EVENT_ASSOCINFO: 1904 wpa_supplicant_event_associnfo(wpa_s, data); 1905 break; 1906 case EVENT_INTERFACE_STATUS: 1907 wpa_supplicant_event_interface_status(wpa_s, data); 1908 break; 1909 case EVENT_PMKID_CANDIDATE: 1910 wpa_supplicant_event_pmkid_candidate(wpa_s, data); 1911 break; 1912 #ifdef CONFIG_PEERKEY 1913 case EVENT_STKSTART: 1914 wpa_supplicant_event_stkstart(wpa_s, data); 1915 break; 1916 #endif /* CONFIG_PEERKEY */ 1917 #ifdef CONFIG_TDLS 1918 case EVENT_TDLS: 1919 wpa_supplicant_event_tdls(wpa_s, data); 1920 break; 1921 #endif /* CONFIG_TDLS */ 1922 #ifdef CONFIG_IEEE80211R 1923 case EVENT_FT_RESPONSE: 1924 wpa_supplicant_event_ft_response(wpa_s, data); 1925 break; 1926 #endif /* CONFIG_IEEE80211R */ 1927 #ifdef CONFIG_IBSS_RSN 1928 case EVENT_IBSS_RSN_START: 1929 wpa_supplicant_event_ibss_rsn_start(wpa_s, data); 1930 break; 1931 #endif /* CONFIG_IBSS_RSN */ 1932 case EVENT_ASSOC_REJECT: 1933 if (data->assoc_reject.bssid) 1934 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 1935 "bssid=" MACSTR " status_code=%u", 1936 MAC2STR(data->assoc_reject.bssid), 1937 data->assoc_reject.status_code); 1938 else 1939 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 1940 "status_code=%u", 1941 data->assoc_reject.status_code); 1942 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 1943 sme_event_assoc_reject(wpa_s, data); 1944 break; 1945 case EVENT_AUTH_TIMED_OUT: 1946 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 1947 sme_event_auth_timed_out(wpa_s, data); 1948 break; 1949 case EVENT_ASSOC_TIMED_OUT: 1950 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 1951 sme_event_assoc_timed_out(wpa_s, data); 1952 break; 1953 #ifdef CONFIG_AP 1954 case EVENT_TX_STATUS: 1955 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR 1956 " type=%d stype=%d", 1957 MAC2STR(data->tx_status.dst), 1958 data->tx_status.type, data->tx_status.stype); 1959 if (wpa_s->ap_iface == NULL) { 1960 #ifdef CONFIG_P2P 1961 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 1962 data->tx_status.stype == WLAN_FC_STYPE_ACTION) 1963 wpas_send_action_tx_status( 1964 wpa_s, data->tx_status.dst, 1965 data->tx_status.data, 1966 data->tx_status.data_len, 1967 data->tx_status.ack ? 1968 P2P_SEND_ACTION_SUCCESS : 1969 P2P_SEND_ACTION_NO_ACK); 1970 #endif /* CONFIG_P2P */ 1971 break; 1972 } 1973 #ifdef CONFIG_P2P 1974 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" 1975 MACSTR, MAC2STR(wpa_s->parent->pending_action_dst)); 1976 /* 1977 * Catch TX status events for Action frames we sent via group 1978 * interface in GO mode. 1979 */ 1980 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 1981 data->tx_status.stype == WLAN_FC_STYPE_ACTION && 1982 os_memcmp(wpa_s->parent->pending_action_dst, 1983 data->tx_status.dst, ETH_ALEN) == 0) { 1984 wpas_send_action_tx_status( 1985 wpa_s->parent, data->tx_status.dst, 1986 data->tx_status.data, 1987 data->tx_status.data_len, 1988 data->tx_status.ack ? 1989 P2P_SEND_ACTION_SUCCESS : 1990 P2P_SEND_ACTION_NO_ACK); 1991 break; 1992 } 1993 #endif /* CONFIG_P2P */ 1994 switch (data->tx_status.type) { 1995 case WLAN_FC_TYPE_MGMT: 1996 ap_mgmt_tx_cb(wpa_s, data->tx_status.data, 1997 data->tx_status.data_len, 1998 data->tx_status.stype, 1999 data->tx_status.ack); 2000 break; 2001 case WLAN_FC_TYPE_DATA: 2002 ap_tx_status(wpa_s, data->tx_status.dst, 2003 data->tx_status.data, 2004 data->tx_status.data_len, 2005 data->tx_status.ack); 2006 break; 2007 } 2008 break; 2009 case EVENT_RX_FROM_UNKNOWN: 2010 if (wpa_s->ap_iface == NULL) 2011 break; 2012 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.frame, 2013 data->rx_from_unknown.len); 2014 break; 2015 case EVENT_RX_MGMT: 2016 if (wpa_s->ap_iface == NULL) { 2017 #ifdef CONFIG_P2P 2018 u16 fc, stype; 2019 const struct ieee80211_mgmt *mgmt; 2020 mgmt = (const struct ieee80211_mgmt *) 2021 data->rx_mgmt.frame; 2022 fc = le_to_host16(mgmt->frame_control); 2023 stype = WLAN_FC_GET_STYPE(fc); 2024 if (stype == WLAN_FC_STYPE_PROBE_REQ && 2025 data->rx_mgmt.frame_len > 24) { 2026 const u8 *src = mgmt->sa; 2027 const u8 *ie = mgmt->u.probe_req.variable; 2028 size_t ie_len = data->rx_mgmt.frame_len - 2029 (mgmt->u.probe_req.variable - 2030 data->rx_mgmt.frame); 2031 #ifdef ANDROID_BRCM_P2P_PATCH 2032 wpa_printf(MSG_DEBUG, "Non-AP: Probe request frame "); 2033 { 2034 /* If we are Go or client, we need not reply the probe reqest on eth0 interface */ 2035 struct wpa_supplicant* ifs; 2036 int ignore = 0; 2037 for (ifs = wpa_s->global->ifaces; ifs; ifs = ifs->next) { 2038 if ( (ifs->p2p_group_interface == P2P_GROUP_INTERFACE_GO ) ||(ifs->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT )) { 2039 wpa_printf(MSG_DEBUG, "Non-AP: NEERAJKG Ignoring Probe request"); 2040 ignore = 1; 2041 break; 2042 } 2043 } 2044 if(ignore) 2045 break; 2046 else 2047 wpa_printf(MSG_DEBUG, "Non-AP: Couln't Ignore Probe request %d", wpa_s->p2p_group_interface); 2048 } 2049 #endif 2050 wpas_p2p_probe_req_rx(wpa_s, src, ie, ie_len); 2051 break; 2052 } 2053 #endif /* CONFIG_P2P */ 2054 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " 2055 "management frame in non-AP mode"); 2056 break; 2057 } 2058 ap_mgmt_rx(wpa_s, &data->rx_mgmt); 2059 break; 2060 #endif /* CONFIG_AP */ 2061 case EVENT_RX_ACTION: 2062 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR 2063 " Category=%u DataLen=%d freq=%d MHz", 2064 MAC2STR(data->rx_action.sa), 2065 data->rx_action.category, (int) data->rx_action.len, 2066 data->rx_action.freq); 2067 #ifdef CONFIG_IEEE80211R 2068 if (data->rx_action.category == WLAN_ACTION_FT) { 2069 ft_rx_action(wpa_s, data->rx_action.data, 2070 data->rx_action.len); 2071 break; 2072 } 2073 #endif /* CONFIG_IEEE80211R */ 2074 #ifdef CONFIG_IEEE80211W 2075 #ifdef CONFIG_SME 2076 if (data->rx_action.category == WLAN_ACTION_SA_QUERY) { 2077 sme_sa_query_rx(wpa_s, data->rx_action.sa, 2078 data->rx_action.data, 2079 data->rx_action.len); 2080 break; 2081 } 2082 #endif /* CONFIG_SME */ 2083 #endif /* CONFIG_IEEE80211W */ 2084 #ifdef CONFIG_P2P 2085 wpas_p2p_rx_action(wpa_s, data->rx_action.da, 2086 data->rx_action.sa, 2087 data->rx_action.bssid, 2088 data->rx_action.category, 2089 data->rx_action.data, 2090 data->rx_action.len, data->rx_action.freq); 2091 #endif /* CONFIG_P2P */ 2092 break; 2093 case EVENT_RX_PROBE_REQ: 2094 if (data->rx_probe_req.sa == NULL || 2095 data->rx_probe_req.ie == NULL) 2096 break; 2097 #ifdef CONFIG_AP 2098 if (wpa_s->ap_iface) { 2099 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], 2100 data->rx_probe_req.sa, 2101 data->rx_probe_req.ie, 2102 data->rx_probe_req.ie_len); 2103 break; 2104 } 2105 #endif /* CONFIG_AP */ 2106 #ifdef CONFIG_P2P 2107 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa, 2108 data->rx_probe_req.ie, 2109 data->rx_probe_req.ie_len); 2110 #endif /* CONFIG_P2P */ 2111 break; 2112 #ifdef CONFIG_P2P 2113 case EVENT_REMAIN_ON_CHANNEL: 2114 wpas_p2p_remain_on_channel_cb( 2115 wpa_s, data->remain_on_channel.freq, 2116 data->remain_on_channel.duration); 2117 break; 2118 case EVENT_CANCEL_REMAIN_ON_CHANNEL: 2119 wpas_p2p_cancel_remain_on_channel_cb( 2120 wpa_s, data->remain_on_channel.freq); 2121 break; 2122 case EVENT_P2P_DEV_FOUND: { 2123 struct p2p_peer_info peer_info; 2124 2125 os_memset(&peer_info, 0, sizeof(peer_info)); 2126 if (data->p2p_dev_found.dev_addr) 2127 os_memcpy(peer_info.p2p_device_addr, 2128 data->p2p_dev_found.dev_addr, ETH_ALEN); 2129 if (data->p2p_dev_found.pri_dev_type) 2130 os_memcpy(peer_info.pri_dev_type, 2131 data->p2p_dev_found.pri_dev_type, 2132 sizeof(peer_info.pri_dev_type)); 2133 if (data->p2p_dev_found.dev_name) 2134 os_strlcpy(peer_info.device_name, 2135 data->p2p_dev_found.dev_name, 2136 sizeof(peer_info.device_name)); 2137 peer_info.config_methods = data->p2p_dev_found.config_methods; 2138 peer_info.dev_capab = data->p2p_dev_found.dev_capab; 2139 peer_info.group_capab = data->p2p_dev_found.group_capab; 2140 2141 /* 2142 * FIX: new_device=1 is not necessarily correct. We should 2143 * maintain a P2P peer database in wpa_supplicant and update 2144 * this information based on whether the peer is truly new. 2145 */ 2146 wpas_dev_found(wpa_s, data->p2p_dev_found.addr, &peer_info, 1); 2147 break; 2148 } 2149 case EVENT_P2P_GO_NEG_REQ_RX: 2150 wpas_go_neg_req_rx(wpa_s, data->p2p_go_neg_req_rx.src, 2151 data->p2p_go_neg_req_rx.dev_passwd_id); 2152 break; 2153 case EVENT_P2P_GO_NEG_COMPLETED: 2154 wpas_go_neg_completed(wpa_s, data->p2p_go_neg_completed.res); 2155 break; 2156 case EVENT_P2P_PROV_DISC_REQUEST: 2157 wpas_prov_disc_req(wpa_s, data->p2p_prov_disc_req.peer, 2158 data->p2p_prov_disc_req.config_methods, 2159 data->p2p_prov_disc_req.dev_addr, 2160 data->p2p_prov_disc_req.pri_dev_type, 2161 data->p2p_prov_disc_req.dev_name, 2162 data->p2p_prov_disc_req.supp_config_methods, 2163 data->p2p_prov_disc_req.dev_capab, 2164 data->p2p_prov_disc_req.group_capab); 2165 break; 2166 case EVENT_P2P_PROV_DISC_RESPONSE: 2167 wpas_prov_disc_resp(wpa_s, data->p2p_prov_disc_resp.peer, 2168 data->p2p_prov_disc_resp.config_methods); 2169 break; 2170 case EVENT_P2P_SD_REQUEST: 2171 wpas_sd_request(wpa_s, data->p2p_sd_req.freq, 2172 data->p2p_sd_req.sa, 2173 data->p2p_sd_req.dialog_token, 2174 data->p2p_sd_req.update_indic, 2175 data->p2p_sd_req.tlvs, 2176 data->p2p_sd_req.tlvs_len); 2177 break; 2178 case EVENT_P2P_SD_RESPONSE: 2179 wpas_sd_response(wpa_s, data->p2p_sd_resp.sa, 2180 data->p2p_sd_resp.update_indic, 2181 data->p2p_sd_resp.tlvs, 2182 data->p2p_sd_resp.tlvs_len); 2183 break; 2184 #endif /* CONFIG_P2P */ 2185 #ifdef CONFIG_CLIENT_MLME 2186 case EVENT_MLME_RX: { 2187 struct ieee80211_rx_status rx_status; 2188 os_memset(&rx_status, 0, sizeof(rx_status)); 2189 rx_status.freq = data->mlme_rx.freq; 2190 rx_status.channel = data->mlme_rx.channel; 2191 rx_status.ssi = data->mlme_rx.ssi; 2192 ieee80211_sta_rx(wpa_s, data->mlme_rx.buf, data->mlme_rx.len, 2193 &rx_status); 2194 break; 2195 } 2196 #endif /* CONFIG_CLIENT_MLME */ 2197 case EVENT_EAPOL_RX: 2198 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, 2199 data->eapol_rx.data, 2200 data->eapol_rx.data_len); 2201 break; 2202 case EVENT_SIGNAL_CHANGE: 2203 bgscan_notify_signal_change( 2204 wpa_s, data->signal_change.above_threshold, 2205 data->signal_change.current_signal, 2206 data->signal_change.current_noise, 2207 data->signal_change.current_txrate); 2208 break; 2209 case EVENT_INTERFACE_ENABLED: 2210 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); 2211 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 2212 #ifdef CONFIG_AP 2213 if (!wpa_s->ap_iface) { 2214 wpa_supplicant_set_state(wpa_s, 2215 WPA_DISCONNECTED); 2216 wpa_supplicant_req_scan(wpa_s, 0, 0); 2217 } else 2218 wpa_supplicant_set_state(wpa_s, 2219 WPA_COMPLETED); 2220 #else /* CONFIG_AP */ 2221 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 2222 wpa_supplicant_req_scan(wpa_s, 0, 0); 2223 #endif /* CONFIG_AP */ 2224 } 2225 break; 2226 case EVENT_INTERFACE_DISABLED: 2227 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); 2228 wpa_supplicant_mark_disassoc(wpa_s); 2229 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2230 break; 2231 case EVENT_CHANNEL_LIST_CHANGED: 2232 if (wpa_s->drv_priv == NULL) 2233 break; /* Ignore event during drv initialization */ 2234 #ifdef CONFIG_P2P 2235 wpas_p2p_update_channel_list(wpa_s); 2236 #endif /* CONFIG_P2P */ 2237 break; 2238 case EVENT_INTERFACE_UNAVAILABLE: 2239 #ifdef CONFIG_P2P 2240 wpas_p2p_interface_unavailable(wpa_s); 2241 #endif /* CONFIG_P2P */ 2242 break; 2243 case EVENT_BEST_CHANNEL: 2244 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " 2245 "(%d %d %d)", 2246 data->best_chan.freq_24, data->best_chan.freq_5, 2247 data->best_chan.freq_overall); 2248 wpa_s->best_24_freq = data->best_chan.freq_24; 2249 wpa_s->best_5_freq = data->best_chan.freq_5; 2250 wpa_s->best_overall_freq = data->best_chan.freq_overall; 2251 #ifdef CONFIG_P2P 2252 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, 2253 data->best_chan.freq_5, 2254 data->best_chan.freq_overall); 2255 #endif /* CONFIG_P2P */ 2256 break; 2257 case EVENT_UNPROT_DEAUTH: 2258 wpa_supplicant_event_unprot_deauth(wpa_s, 2259 &data->unprot_deauth); 2260 break; 2261 case EVENT_UNPROT_DISASSOC: 2262 wpa_supplicant_event_unprot_disassoc(wpa_s, 2263 &data->unprot_disassoc); 2264 break; 2265 case EVENT_STATION_LOW_ACK: 2266 #ifdef CONFIG_AP 2267 if (wpa_s->ap_iface && data) 2268 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], 2269 data->low_ack.addr); 2270 #endif /* CONFIG_AP */ 2271 break; 2272 case EVENT_IBSS_PEER_LOST: 2273 #ifdef CONFIG_IBSS_RSN 2274 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer); 2275 #endif /* CONFIG_IBSS_RSN */ 2276 break; 2277 default: 2278 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); 2279 break; 2280 } 2281 } 2282
