1 /* 2 * WPA Supplicant - Driver event processing 3 * Copyright (c) 2003-2019, 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 "fst/fst.h" 27 #include "wnm_sta.h" 28 #include "notify.h" 29 #include "common/ieee802_11_defs.h" 30 #include "common/ieee802_11_common.h" 31 #include "common/gas_server.h" 32 #include "common/dpp.h" 33 #include "crypto/random.h" 34 #include "blacklist.h" 35 #include "wpas_glue.h" 36 #include "wps_supplicant.h" 37 #include "ibss_rsn.h" 38 #include "sme.h" 39 #include "gas_query.h" 40 #include "p2p_supplicant.h" 41 #include "bgscan.h" 42 #include "autoscan.h" 43 #include "ap.h" 44 #include "bss.h" 45 #include "scan.h" 46 #include "offchannel.h" 47 #include "interworking.h" 48 #include "mesh.h" 49 #include "mesh_mpm.h" 50 #include "wmm_ac.h" 51 #include "dpp_supplicant.h" 52 53 54 #define MAX_OWE_TRANSITION_BSS_SELECT_COUNT 5 55 56 57 #ifndef CONFIG_NO_SCAN_PROCESSING 58 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s, 59 int new_scan, int own_request); 60 #endif /* CONFIG_NO_SCAN_PROCESSING */ 61 62 63 int wpas_temp_disabled(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid) 64 { 65 struct os_reltime now; 66 67 if (ssid == NULL || ssid->disabled_until.sec == 0) 68 return 0; 69 70 os_get_reltime(&now); 71 if (ssid->disabled_until.sec > now.sec) 72 return ssid->disabled_until.sec - now.sec; 73 74 wpas_clear_temp_disabled(wpa_s, ssid, 0); 75 76 return 0; 77 } 78 79 80 #ifndef CONFIG_NO_SCAN_PROCESSING 81 /** 82 * wpas_reenabled_network_time - Time until first network is re-enabled 83 * @wpa_s: Pointer to wpa_supplicant data 84 * Returns: If all enabled networks are temporarily disabled, returns the time 85 * (in sec) until the first network is re-enabled. Otherwise returns 0. 86 * 87 * This function is used in case all enabled networks are temporarily disabled, 88 * in which case it returns the time (in sec) that the first network will be 89 * re-enabled. The function assumes that at least one network is enabled. 90 */ 91 static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s) 92 { 93 struct wpa_ssid *ssid; 94 int disabled_for, res = 0; 95 96 #ifdef CONFIG_INTERWORKING 97 if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking && 98 wpa_s->conf->cred) 99 return 0; 100 #endif /* CONFIG_INTERWORKING */ 101 102 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 103 if (ssid->disabled) 104 continue; 105 106 disabled_for = wpas_temp_disabled(wpa_s, ssid); 107 if (!disabled_for) 108 return 0; 109 110 if (!res || disabled_for < res) 111 res = disabled_for; 112 } 113 114 return res; 115 } 116 #endif /* CONFIG_NO_SCAN_PROCESSING */ 117 118 119 void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx) 120 { 121 struct wpa_supplicant *wpa_s = eloop_ctx; 122 123 if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING) 124 return; 125 126 wpa_dbg(wpa_s, MSG_DEBUG, 127 "Try to associate due to network getting re-enabled"); 128 if (wpa_supplicant_fast_associate(wpa_s) != 1) { 129 wpa_supplicant_cancel_sched_scan(wpa_s); 130 wpa_supplicant_req_scan(wpa_s, 0, 0); 131 } 132 } 133 134 135 static struct wpa_bss * wpa_supplicant_get_new_bss( 136 struct wpa_supplicant *wpa_s, const u8 *bssid) 137 { 138 struct wpa_bss *bss = NULL; 139 struct wpa_ssid *ssid = wpa_s->current_ssid; 140 141 if (ssid->ssid_len > 0) 142 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len); 143 if (!bss) 144 bss = wpa_bss_get_bssid(wpa_s, bssid); 145 146 return bss; 147 } 148 149 150 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s) 151 { 152 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid); 153 154 if (!bss) { 155 wpa_supplicant_update_scan_results(wpa_s); 156 157 /* Get the BSS from the new scan results */ 158 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid); 159 } 160 161 if (bss) 162 wpa_s->current_bss = bss; 163 } 164 165 166 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s) 167 { 168 struct wpa_ssid *ssid, *old_ssid; 169 u8 drv_ssid[SSID_MAX_LEN]; 170 size_t drv_ssid_len; 171 int res; 172 173 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) { 174 wpa_supplicant_update_current_bss(wpa_s); 175 176 if (wpa_s->current_ssid->ssid_len == 0) 177 return 0; /* current profile still in use */ 178 res = wpa_drv_get_ssid(wpa_s, drv_ssid); 179 if (res < 0) { 180 wpa_msg(wpa_s, MSG_INFO, 181 "Failed to read SSID from driver"); 182 return 0; /* try to use current profile */ 183 } 184 drv_ssid_len = res; 185 186 if (drv_ssid_len == wpa_s->current_ssid->ssid_len && 187 os_memcmp(drv_ssid, wpa_s->current_ssid->ssid, 188 drv_ssid_len) == 0) 189 return 0; /* current profile still in use */ 190 191 wpa_msg(wpa_s, MSG_DEBUG, 192 "Driver-initiated BSS selection changed the SSID to %s", 193 wpa_ssid_txt(drv_ssid, drv_ssid_len)); 194 /* continue selecting a new network profile */ 195 } 196 197 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association " 198 "information"); 199 ssid = wpa_supplicant_get_ssid(wpa_s); 200 if (ssid == NULL) { 201 wpa_msg(wpa_s, MSG_INFO, 202 "No network configuration found for the current AP"); 203 return -1; 204 } 205 206 if (wpas_network_disabled(wpa_s, ssid)) { 207 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled"); 208 return -1; 209 } 210 211 if (disallowed_bssid(wpa_s, wpa_s->bssid) || 212 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) { 213 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed"); 214 return -1; 215 } 216 217 res = wpas_temp_disabled(wpa_s, ssid); 218 if (res > 0) { 219 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily " 220 "disabled for %d second(s)", res); 221 return -1; 222 } 223 224 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the " 225 "current AP"); 226 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { 227 u8 wpa_ie[80]; 228 size_t wpa_ie_len = sizeof(wpa_ie); 229 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, 230 wpa_ie, &wpa_ie_len) < 0) 231 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites"); 232 } else { 233 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); 234 } 235 236 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) 237 eapol_sm_invalidate_cached_session(wpa_s->eapol); 238 old_ssid = wpa_s->current_ssid; 239 wpa_s->current_ssid = ssid; 240 241 wpa_supplicant_update_current_bss(wpa_s); 242 243 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); 244 wpa_supplicant_initiate_eapol(wpa_s); 245 if (old_ssid != wpa_s->current_ssid) 246 wpas_notify_network_changed(wpa_s); 247 248 return 0; 249 } 250 251 252 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx) 253 { 254 struct wpa_supplicant *wpa_s = eloop_ctx; 255 256 if (wpa_s->countermeasures) { 257 wpa_s->countermeasures = 0; 258 wpa_drv_set_countermeasures(wpa_s, 0); 259 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped"); 260 261 /* 262 * It is possible that the device is sched scanning, which means 263 * that a connection attempt will be done only when we receive 264 * scan results. However, in this case, it would be preferable 265 * to scan and connect immediately, so cancel the sched_scan and 266 * issue a regular scan flow. 267 */ 268 wpa_supplicant_cancel_sched_scan(wpa_s); 269 wpa_supplicant_req_scan(wpa_s, 0, 0); 270 } 271 } 272 273 274 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s) 275 { 276 int bssid_changed; 277 278 wnm_bss_keep_alive_deinit(wpa_s); 279 280 #ifdef CONFIG_IBSS_RSN 281 ibss_rsn_deinit(wpa_s->ibss_rsn); 282 wpa_s->ibss_rsn = NULL; 283 #endif /* CONFIG_IBSS_RSN */ 284 285 #ifdef CONFIG_AP 286 wpa_supplicant_ap_deinit(wpa_s); 287 #endif /* CONFIG_AP */ 288 289 #ifdef CONFIG_HS20 290 /* Clear possibly configured frame filters */ 291 wpa_drv_configure_frame_filters(wpa_s, 0); 292 #endif /* CONFIG_HS20 */ 293 294 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 295 return; 296 297 if (os_reltime_initialized(&wpa_s->session_start)) { 298 os_reltime_age(&wpa_s->session_start, &wpa_s->session_length); 299 wpa_s->session_start.sec = 0; 300 wpa_s->session_start.usec = 0; 301 wpas_notify_session_length(wpa_s); 302 } 303 304 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 305 bssid_changed = !is_zero_ether_addr(wpa_s->bssid); 306 os_memset(wpa_s->bssid, 0, ETH_ALEN); 307 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 308 sme_clear_on_disassoc(wpa_s); 309 wpa_s->current_bss = NULL; 310 wpa_s->assoc_freq = 0; 311 312 if (bssid_changed) 313 wpas_notify_bssid_changed(wpa_s); 314 315 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 316 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 317 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || 318 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE || 319 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP) 320 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 321 wpa_s->ap_ies_from_associnfo = 0; 322 wpa_s->current_ssid = NULL; 323 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 324 wpa_s->key_mgmt = 0; 325 326 wpas_rrm_reset(wpa_s); 327 wpa_s->wnmsleep_used = 0; 328 wnm_clear_coloc_intf_reporting(wpa_s); 329 330 #ifdef CONFIG_TESTING_OPTIONS 331 wpa_s->last_tk_alg = WPA_ALG_NONE; 332 os_memset(wpa_s->last_tk, 0, sizeof(wpa_s->last_tk)); 333 #endif /* CONFIG_TESTING_OPTIONS */ 334 wpa_s->ieee80211ac = 0; 335 336 if (wpa_s->enabled_4addr_mode && wpa_drv_set_4addr_mode(wpa_s, 0) == 0) 337 wpa_s->enabled_4addr_mode = 0; 338 } 339 340 341 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s) 342 { 343 struct wpa_ie_data ie; 344 int pmksa_set = -1; 345 size_t i; 346 347 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 || 348 ie.pmkid == NULL) 349 return; 350 351 for (i = 0; i < ie.num_pmkid; i++) { 352 pmksa_set = pmksa_cache_set_current(wpa_s->wpa, 353 ie.pmkid + i * PMKID_LEN, 354 NULL, NULL, 0, NULL, 0); 355 if (pmksa_set == 0) { 356 eapol_sm_notify_pmkid_attempt(wpa_s->eapol); 357 break; 358 } 359 } 360 361 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from " 362 "PMKSA cache", pmksa_set == 0 ? "" : "not "); 363 } 364 365 366 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s, 367 union wpa_event_data *data) 368 { 369 if (data == NULL) { 370 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate " 371 "event"); 372 return; 373 } 374 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR 375 " index=%d preauth=%d", 376 MAC2STR(data->pmkid_candidate.bssid), 377 data->pmkid_candidate.index, 378 data->pmkid_candidate.preauth); 379 380 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid, 381 data->pmkid_candidate.index, 382 data->pmkid_candidate.preauth); 383 } 384 385 386 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s) 387 { 388 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 389 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) 390 return 0; 391 392 #ifdef IEEE8021X_EAPOL 393 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA && 394 wpa_s->current_ssid && 395 !(wpa_s->current_ssid->eapol_flags & 396 (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 397 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) { 398 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either 399 * plaintext or static WEP keys). */ 400 return 0; 401 } 402 #endif /* IEEE8021X_EAPOL */ 403 404 return 1; 405 } 406 407 408 /** 409 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC 410 * @wpa_s: pointer to wpa_supplicant data 411 * @ssid: Configuration data for the network 412 * Returns: 0 on success, -1 on failure 413 * 414 * This function is called when starting authentication with a network that is 415 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA). 416 */ 417 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s, 418 struct wpa_ssid *ssid) 419 { 420 #ifdef IEEE8021X_EAPOL 421 #ifdef PCSC_FUNCS 422 int aka = 0, sim = 0; 423 424 if ((ssid != NULL && ssid->eap.pcsc == NULL) || 425 wpa_s->scard != NULL || wpa_s->conf->external_sim) 426 return 0; 427 428 if (ssid == NULL || ssid->eap.eap_methods == NULL) { 429 sim = 1; 430 aka = 1; 431 } else { 432 struct eap_method_type *eap = ssid->eap.eap_methods; 433 while (eap->vendor != EAP_VENDOR_IETF || 434 eap->method != EAP_TYPE_NONE) { 435 if (eap->vendor == EAP_VENDOR_IETF) { 436 if (eap->method == EAP_TYPE_SIM) 437 sim = 1; 438 else if (eap->method == EAP_TYPE_AKA || 439 eap->method == EAP_TYPE_AKA_PRIME) 440 aka = 1; 441 } 442 eap++; 443 } 444 } 445 446 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL) 447 sim = 0; 448 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL && 449 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) == 450 NULL) 451 aka = 0; 452 453 if (!sim && !aka) { 454 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to " 455 "use SIM, but neither EAP-SIM nor EAP-AKA are " 456 "enabled"); 457 return 0; 458 } 459 460 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM " 461 "(sim=%d aka=%d) - initialize PCSC", sim, aka); 462 463 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader); 464 if (wpa_s->scard == NULL) { 465 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM " 466 "(pcsc-lite)"); 467 return -1; 468 } 469 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); 470 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); 471 #endif /* PCSC_FUNCS */ 472 #endif /* IEEE8021X_EAPOL */ 473 474 return 0; 475 } 476 477 478 #ifndef CONFIG_NO_SCAN_PROCESSING 479 480 static int has_wep_key(struct wpa_ssid *ssid) 481 { 482 int i; 483 484 for (i = 0; i < NUM_WEP_KEYS; i++) { 485 if (ssid->wep_key_len[i]) 486 return 1; 487 } 488 489 return 0; 490 } 491 492 493 static int wpa_supplicant_match_privacy(struct wpa_bss *bss, 494 struct wpa_ssid *ssid) 495 { 496 int privacy = 0; 497 498 if (ssid->mixed_cell) 499 return 1; 500 501 #ifdef CONFIG_WPS 502 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) 503 return 1; 504 #endif /* CONFIG_WPS */ 505 506 #ifdef CONFIG_OWE 507 if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only) 508 return 1; 509 #endif /* CONFIG_OWE */ 510 511 if (has_wep_key(ssid)) 512 privacy = 1; 513 514 #ifdef IEEE8021X_EAPOL 515 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 516 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 517 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) 518 privacy = 1; 519 #endif /* IEEE8021X_EAPOL */ 520 521 if (wpa_key_mgmt_wpa(ssid->key_mgmt)) 522 privacy = 1; 523 524 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) 525 privacy = 1; 526 527 if (bss->caps & IEEE80211_CAP_PRIVACY) 528 return privacy; 529 return !privacy; 530 } 531 532 533 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s, 534 struct wpa_ssid *ssid, 535 struct wpa_bss *bss, int debug_print) 536 { 537 struct wpa_ie_data ie; 538 int proto_match = 0; 539 const u8 *rsn_ie, *wpa_ie; 540 int ret; 541 int wep_ok; 542 543 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss); 544 if (ret >= 0) 545 return ret; 546 547 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */ 548 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) && 549 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 550 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) || 551 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)); 552 553 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 554 while ((ssid->proto & (WPA_PROTO_RSN | WPA_PROTO_OSEN)) && rsn_ie) { 555 proto_match++; 556 557 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) { 558 if (debug_print) 559 wpa_dbg(wpa_s, MSG_DEBUG, 560 " skip RSN IE - parse failed"); 561 break; 562 } 563 if (!ie.has_pairwise) 564 ie.pairwise_cipher = wpa_default_rsn_cipher(bss->freq); 565 if (!ie.has_group) 566 ie.group_cipher = wpa_default_rsn_cipher(bss->freq); 567 568 if (wep_ok && 569 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 570 { 571 if (debug_print) 572 wpa_dbg(wpa_s, MSG_DEBUG, 573 " selected based on TSN in RSN IE"); 574 return 1; 575 } 576 577 if (!(ie.proto & ssid->proto) && 578 !(ssid->proto & WPA_PROTO_OSEN)) { 579 if (debug_print) 580 wpa_dbg(wpa_s, MSG_DEBUG, 581 " skip RSN IE - proto mismatch"); 582 break; 583 } 584 585 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 586 if (debug_print) 587 wpa_dbg(wpa_s, MSG_DEBUG, 588 " skip RSN IE - PTK cipher mismatch"); 589 break; 590 } 591 592 if (!(ie.group_cipher & ssid->group_cipher)) { 593 if (debug_print) 594 wpa_dbg(wpa_s, MSG_DEBUG, 595 " skip RSN IE - GTK cipher mismatch"); 596 break; 597 } 598 599 if (ssid->group_mgmt_cipher && 600 !(ie.mgmt_group_cipher & ssid->group_mgmt_cipher)) { 601 if (debug_print) 602 wpa_dbg(wpa_s, MSG_DEBUG, 603 " skip RSN IE - group mgmt cipher mismatch"); 604 break; 605 } 606 607 if (!(ie.key_mgmt & ssid->key_mgmt)) { 608 if (debug_print) 609 wpa_dbg(wpa_s, MSG_DEBUG, 610 " skip RSN IE - key mgmt mismatch"); 611 break; 612 } 613 614 #ifdef CONFIG_IEEE80211W 615 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 616 wpas_get_ssid_pmf(wpa_s, ssid) == 617 MGMT_FRAME_PROTECTION_REQUIRED) { 618 if (debug_print) 619 wpa_dbg(wpa_s, MSG_DEBUG, 620 " skip RSN IE - no mgmt frame protection"); 621 break; 622 } 623 #endif /* CONFIG_IEEE80211W */ 624 if ((ie.capabilities & WPA_CAPABILITY_MFPR) && 625 wpas_get_ssid_pmf(wpa_s, ssid) == 626 NO_MGMT_FRAME_PROTECTION) { 627 if (debug_print) 628 wpa_dbg(wpa_s, MSG_DEBUG, 629 " skip RSN IE - no mgmt frame protection enabled but AP requires it"); 630 break; 631 } 632 #ifdef CONFIG_MBO 633 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 634 wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND) && 635 wpas_get_ssid_pmf(wpa_s, ssid) != 636 NO_MGMT_FRAME_PROTECTION) { 637 if (debug_print) 638 wpa_dbg(wpa_s, MSG_DEBUG, 639 " skip RSN IE - no mgmt frame protection enabled on MBO AP"); 640 break; 641 } 642 #endif /* CONFIG_MBO */ 643 644 if (debug_print) 645 wpa_dbg(wpa_s, MSG_DEBUG, 646 " selected based on RSN IE"); 647 return 1; 648 } 649 650 #ifdef CONFIG_IEEE80211W 651 if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED && 652 (!(ssid->key_mgmt & WPA_KEY_MGMT_OWE) || ssid->owe_only)) { 653 if (debug_print) 654 wpa_dbg(wpa_s, MSG_DEBUG, 655 " skip - MFP Required but network not MFP Capable"); 656 return 0; 657 } 658 #endif /* CONFIG_IEEE80211W */ 659 660 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 661 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) { 662 proto_match++; 663 664 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) { 665 if (debug_print) 666 wpa_dbg(wpa_s, MSG_DEBUG, 667 " skip WPA IE - parse failed"); 668 break; 669 } 670 671 if (wep_ok && 672 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 673 { 674 if (debug_print) 675 wpa_dbg(wpa_s, MSG_DEBUG, 676 " selected based on TSN in WPA IE"); 677 return 1; 678 } 679 680 if (!(ie.proto & ssid->proto)) { 681 if (debug_print) 682 wpa_dbg(wpa_s, MSG_DEBUG, 683 " skip WPA IE - proto mismatch"); 684 break; 685 } 686 687 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 688 if (debug_print) 689 wpa_dbg(wpa_s, MSG_DEBUG, 690 " skip WPA IE - PTK cipher mismatch"); 691 break; 692 } 693 694 if (!(ie.group_cipher & ssid->group_cipher)) { 695 if (debug_print) 696 wpa_dbg(wpa_s, MSG_DEBUG, 697 " skip WPA IE - GTK cipher mismatch"); 698 break; 699 } 700 701 if (!(ie.key_mgmt & ssid->key_mgmt)) { 702 if (debug_print) 703 wpa_dbg(wpa_s, MSG_DEBUG, 704 " skip WPA IE - key mgmt mismatch"); 705 break; 706 } 707 708 if (debug_print) 709 wpa_dbg(wpa_s, MSG_DEBUG, 710 " selected based on WPA IE"); 711 return 1; 712 } 713 714 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie && 715 !rsn_ie) { 716 if (debug_print) 717 wpa_dbg(wpa_s, MSG_DEBUG, 718 " allow for non-WPA IEEE 802.1X"); 719 return 1; 720 } 721 722 #ifdef CONFIG_OWE 723 if ((ssid->key_mgmt & WPA_KEY_MGMT_OWE) && !ssid->owe_only && 724 !wpa_ie && !rsn_ie) { 725 if (wpa_s->owe_transition_select && 726 wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE) && 727 ssid->owe_transition_bss_select_count + 1 <= 728 MAX_OWE_TRANSITION_BSS_SELECT_COUNT) { 729 ssid->owe_transition_bss_select_count++; 730 if (debug_print) 731 wpa_dbg(wpa_s, MSG_DEBUG, 732 " skip OWE transition BSS (selection count %d does not exceed %d)", 733 ssid->owe_transition_bss_select_count, 734 MAX_OWE_TRANSITION_BSS_SELECT_COUNT); 735 wpa_s->owe_transition_search = 1; 736 return 0; 737 } 738 if (debug_print) 739 wpa_dbg(wpa_s, MSG_DEBUG, 740 " allow in OWE transition mode"); 741 return 1; 742 } 743 #endif /* CONFIG_OWE */ 744 745 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) && 746 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) { 747 if (debug_print) 748 wpa_dbg(wpa_s, MSG_DEBUG, 749 " skip - no WPA/RSN proto match"); 750 return 0; 751 } 752 753 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && 754 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) { 755 if (debug_print) 756 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN"); 757 return 1; 758 } 759 760 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) { 761 if (debug_print) 762 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2"); 763 return 1; 764 } 765 766 if (debug_print) 767 wpa_dbg(wpa_s, MSG_DEBUG, 768 " reject due to mismatch with WPA/WPA2"); 769 770 return 0; 771 } 772 773 774 static int freq_allowed(int *freqs, int freq) 775 { 776 int i; 777 778 if (freqs == NULL) 779 return 1; 780 781 for (i = 0; freqs[i]; i++) 782 if (freqs[i] == freq) 783 return 1; 784 return 0; 785 } 786 787 788 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss, 789 int debug_print) 790 { 791 const struct hostapd_hw_modes *mode = NULL, *modes; 792 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES }; 793 const u8 *rate_ie; 794 int i, j, k; 795 796 if (bss->freq == 0) 797 return 1; /* Cannot do matching without knowing band */ 798 799 modes = wpa_s->hw.modes; 800 if (modes == NULL) { 801 /* 802 * The driver does not provide any additional information 803 * about the utilized hardware, so allow the connection attempt 804 * to continue. 805 */ 806 return 1; 807 } 808 809 for (i = 0; i < wpa_s->hw.num_modes; i++) { 810 for (j = 0; j < modes[i].num_channels; j++) { 811 int freq = modes[i].channels[j].freq; 812 if (freq == bss->freq) { 813 if (mode && 814 mode->mode == HOSTAPD_MODE_IEEE80211G) 815 break; /* do not allow 802.11b replace 816 * 802.11g */ 817 mode = &modes[i]; 818 break; 819 } 820 } 821 } 822 823 if (mode == NULL) 824 return 0; 825 826 for (i = 0; i < (int) sizeof(scan_ie); i++) { 827 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]); 828 if (rate_ie == NULL) 829 continue; 830 831 for (j = 2; j < rate_ie[1] + 2; j++) { 832 int flagged = !!(rate_ie[j] & 0x80); 833 int r = (rate_ie[j] & 0x7f) * 5; 834 835 /* 836 * IEEE Std 802.11n-2009 7.3.2.2: 837 * The new BSS Membership selector value is encoded 838 * like a legacy basic rate, but it is not a rate and 839 * only indicates if the BSS members are required to 840 * support the mandatory features of Clause 20 [HT PHY] 841 * in order to join the BSS. 842 */ 843 if (flagged && ((rate_ie[j] & 0x7f) == 844 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) { 845 if (!ht_supported(mode)) { 846 if (debug_print) 847 wpa_dbg(wpa_s, MSG_DEBUG, 848 " hardware does not support HT PHY"); 849 return 0; 850 } 851 continue; 852 } 853 854 /* There's also a VHT selector for 802.11ac */ 855 if (flagged && ((rate_ie[j] & 0x7f) == 856 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) { 857 if (!vht_supported(mode)) { 858 if (debug_print) 859 wpa_dbg(wpa_s, MSG_DEBUG, 860 " hardware does not support VHT PHY"); 861 return 0; 862 } 863 continue; 864 } 865 866 if (!flagged) 867 continue; 868 869 /* check for legacy basic rates */ 870 for (k = 0; k < mode->num_rates; k++) { 871 if (mode->rates[k] == r) 872 break; 873 } 874 if (k == mode->num_rates) { 875 /* 876 * IEEE Std 802.11-2007 7.3.2.2 demands that in 877 * order to join a BSS all required rates 878 * have to be supported by the hardware. 879 */ 880 if (debug_print) 881 wpa_dbg(wpa_s, MSG_DEBUG, 882 " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)", 883 r / 10, r % 10, 884 bss->freq, mode->mode, mode->num_rates); 885 return 0; 886 } 887 } 888 } 889 890 return 1; 891 } 892 893 894 /* 895 * Test whether BSS is in an ESS. 896 * This is done differently in DMG (60 GHz) and non-DMG bands 897 */ 898 static int bss_is_ess(struct wpa_bss *bss) 899 { 900 if (bss_is_dmg(bss)) { 901 return (bss->caps & IEEE80211_CAP_DMG_MASK) == 902 IEEE80211_CAP_DMG_AP; 903 } 904 905 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) == 906 IEEE80211_CAP_ESS); 907 } 908 909 910 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask) 911 { 912 size_t i; 913 914 for (i = 0; i < ETH_ALEN; i++) { 915 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i])) 916 return 0; 917 } 918 return 1; 919 } 920 921 922 static int addr_in_list(const u8 *addr, const u8 *list, size_t num) 923 { 924 size_t i; 925 926 for (i = 0; i < num; i++) { 927 const u8 *a = list + i * ETH_ALEN * 2; 928 const u8 *m = a + ETH_ALEN; 929 930 if (match_mac_mask(a, addr, m)) 931 return 1; 932 } 933 return 0; 934 } 935 936 937 static void owe_trans_ssid(struct wpa_supplicant *wpa_s, struct wpa_bss *bss, 938 const u8 **ret_ssid, size_t *ret_ssid_len) 939 { 940 #ifdef CONFIG_OWE 941 const u8 *owe, *pos, *end, *bssid; 942 u8 ssid_len; 943 struct wpa_bss *open_bss; 944 945 owe = wpa_bss_get_vendor_ie(bss, OWE_IE_VENDOR_TYPE); 946 if (!owe || !wpa_bss_get_ie(bss, WLAN_EID_RSN)) 947 return; 948 949 pos = owe + 6; 950 end = owe + 2 + owe[1]; 951 952 if (end - pos < ETH_ALEN + 1) 953 return; 954 bssid = pos; 955 pos += ETH_ALEN; 956 ssid_len = *pos++; 957 if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN) 958 return; 959 960 /* Match the profile SSID against the OWE transition mode SSID on the 961 * open network. */ 962 wpa_dbg(wpa_s, MSG_DEBUG, "OWE: transition mode BSSID: " MACSTR 963 " SSID: %s", MAC2STR(bssid), wpa_ssid_txt(pos, ssid_len)); 964 *ret_ssid = pos; 965 *ret_ssid_len = ssid_len; 966 967 if (bss->ssid_len > 0) 968 return; 969 970 open_bss = wpa_bss_get_bssid_latest(wpa_s, bssid); 971 if (!open_bss) 972 return; 973 if (ssid_len != open_bss->ssid_len || 974 os_memcmp(pos, open_bss->ssid, ssid_len) != 0) { 975 wpa_dbg(wpa_s, MSG_DEBUG, 976 "OWE: transition mode SSID mismatch: %s", 977 wpa_ssid_txt(open_bss->ssid, open_bss->ssid_len)); 978 return; 979 } 980 981 owe = wpa_bss_get_vendor_ie(open_bss, OWE_IE_VENDOR_TYPE); 982 if (!owe || wpa_bss_get_ie(open_bss, WLAN_EID_RSN)) { 983 wpa_dbg(wpa_s, MSG_DEBUG, 984 "OWE: transition mode open BSS unexpected info"); 985 return; 986 } 987 988 pos = owe + 6; 989 end = owe + 2 + owe[1]; 990 991 if (end - pos < ETH_ALEN + 1) 992 return; 993 if (os_memcmp(pos, bss->bssid, ETH_ALEN) != 0) { 994 wpa_dbg(wpa_s, MSG_DEBUG, 995 "OWE: transition mode BSSID mismatch: " MACSTR, 996 MAC2STR(pos)); 997 return; 998 } 999 pos += ETH_ALEN; 1000 ssid_len = *pos++; 1001 if (end - pos < ssid_len || ssid_len > SSID_MAX_LEN) 1002 return; 1003 wpa_dbg(wpa_s, MSG_DEBUG, "OWE: learned transition mode OWE SSID: %s", 1004 wpa_ssid_txt(pos, ssid_len)); 1005 os_memcpy(bss->ssid, pos, ssid_len); 1006 bss->ssid_len = ssid_len; 1007 #endif /* CONFIG_OWE */ 1008 } 1009 1010 1011 struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s, 1012 int i, struct wpa_bss *bss, 1013 struct wpa_ssid *group, 1014 int only_first_ssid, int debug_print) 1015 { 1016 u8 wpa_ie_len, rsn_ie_len; 1017 int wpa; 1018 struct wpa_blacklist *e; 1019 const u8 *ie; 1020 struct wpa_ssid *ssid; 1021 int osen, rsn_osen = 0; 1022 #ifdef CONFIG_MBO 1023 const u8 *assoc_disallow; 1024 #endif /* CONFIG_MBO */ 1025 const u8 *match_ssid; 1026 size_t match_ssid_len; 1027 struct wpa_ie_data data; 1028 1029 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 1030 wpa_ie_len = ie ? ie[1] : 0; 1031 1032 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 1033 rsn_ie_len = ie ? ie[1] : 0; 1034 if (ie && wpa_parse_wpa_ie_rsn(ie, 2 + ie[1], &data) == 0 && 1035 (data.key_mgmt & WPA_KEY_MGMT_OSEN)) 1036 rsn_osen = 1; 1037 1038 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE); 1039 osen = ie != NULL; 1040 1041 if (debug_print) { 1042 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR 1043 " ssid='%s' wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s", 1044 i, MAC2STR(bss->bssid), 1045 wpa_ssid_txt(bss->ssid, bss->ssid_len), 1046 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, 1047 bss->freq, 1048 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? 1049 " wps" : "", 1050 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) || 1051 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) 1052 ? " p2p" : "", 1053 osen ? " osen=1" : ""); 1054 } 1055 1056 e = wpa_blacklist_get(wpa_s, bss->bssid); 1057 if (e) { 1058 int limit = 1; 1059 if (wpa_supplicant_enabled_networks(wpa_s) == 1) { 1060 /* 1061 * When only a single network is enabled, we can 1062 * trigger blacklisting on the first failure. This 1063 * should not be done with multiple enabled networks to 1064 * avoid getting forced to move into a worse ESS on 1065 * single error if there are no other BSSes of the 1066 * current ESS. 1067 */ 1068 limit = 0; 1069 } 1070 if (e->count > limit) { 1071 if (debug_print) { 1072 wpa_dbg(wpa_s, MSG_DEBUG, 1073 " skip - blacklisted (count=%d limit=%d)", 1074 e->count, limit); 1075 } 1076 return NULL; 1077 } 1078 } 1079 1080 match_ssid = bss->ssid; 1081 match_ssid_len = bss->ssid_len; 1082 owe_trans_ssid(wpa_s, bss, &match_ssid, &match_ssid_len); 1083 1084 if (match_ssid_len == 0) { 1085 if (debug_print) 1086 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known"); 1087 return NULL; 1088 } 1089 1090 if (disallowed_bssid(wpa_s, bss->bssid)) { 1091 if (debug_print) 1092 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed"); 1093 return NULL; 1094 } 1095 1096 if (disallowed_ssid(wpa_s, match_ssid, match_ssid_len)) { 1097 if (debug_print) 1098 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed"); 1099 return NULL; 1100 } 1101 1102 wpa = wpa_ie_len > 0 || rsn_ie_len > 0; 1103 1104 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) { 1105 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0); 1106 int res; 1107 1108 if (wpas_network_disabled(wpa_s, ssid)) { 1109 if (debug_print) 1110 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled"); 1111 continue; 1112 } 1113 1114 res = wpas_temp_disabled(wpa_s, ssid); 1115 if (res > 0) { 1116 if (debug_print) 1117 wpa_dbg(wpa_s, MSG_DEBUG, 1118 " skip - disabled temporarily for %d second(s)", 1119 res); 1120 continue; 1121 } 1122 1123 #ifdef CONFIG_WPS 1124 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) { 1125 if (debug_print) 1126 wpa_dbg(wpa_s, MSG_DEBUG, 1127 " skip - blacklisted (WPS)"); 1128 continue; 1129 } 1130 1131 if (wpa && ssid->ssid_len == 0 && 1132 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 1133 check_ssid = 0; 1134 1135 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 1136 /* Only allow wildcard SSID match if an AP 1137 * advertises active WPS operation that matches 1138 * with our mode. */ 1139 check_ssid = 1; 1140 if (ssid->ssid_len == 0 && 1141 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 1142 check_ssid = 0; 1143 } 1144 #endif /* CONFIG_WPS */ 1145 1146 if (ssid->bssid_set && ssid->ssid_len == 0 && 1147 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0) 1148 check_ssid = 0; 1149 1150 if (check_ssid && 1151 (match_ssid_len != ssid->ssid_len || 1152 os_memcmp(match_ssid, ssid->ssid, match_ssid_len) != 0)) { 1153 if (debug_print) 1154 wpa_dbg(wpa_s, MSG_DEBUG, 1155 " skip - SSID mismatch"); 1156 continue; 1157 } 1158 1159 if (ssid->bssid_set && 1160 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) { 1161 if (debug_print) 1162 wpa_dbg(wpa_s, MSG_DEBUG, 1163 " skip - BSSID mismatch"); 1164 continue; 1165 } 1166 1167 /* check blacklist */ 1168 if (ssid->num_bssid_blacklist && 1169 addr_in_list(bss->bssid, ssid->bssid_blacklist, 1170 ssid->num_bssid_blacklist)) { 1171 if (debug_print) 1172 wpa_dbg(wpa_s, MSG_DEBUG, 1173 " skip - BSSID blacklisted"); 1174 continue; 1175 } 1176 1177 /* if there is a whitelist, only accept those APs */ 1178 if (ssid->num_bssid_whitelist && 1179 !addr_in_list(bss->bssid, ssid->bssid_whitelist, 1180 ssid->num_bssid_whitelist)) { 1181 if (debug_print) 1182 wpa_dbg(wpa_s, MSG_DEBUG, 1183 " skip - BSSID not in whitelist"); 1184 continue; 1185 } 1186 1187 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss, 1188 debug_print)) 1189 continue; 1190 1191 if (!osen && !wpa && 1192 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 1193 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) && 1194 !(ssid->key_mgmt & WPA_KEY_MGMT_OWE) && 1195 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) { 1196 if (debug_print) 1197 wpa_dbg(wpa_s, MSG_DEBUG, 1198 " skip - non-WPA network not allowed"); 1199 continue; 1200 } 1201 1202 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) && 1203 has_wep_key(ssid)) { 1204 if (debug_print) 1205 wpa_dbg(wpa_s, MSG_DEBUG, 1206 " skip - ignore WPA/WPA2 AP for WEP network block"); 1207 continue; 1208 } 1209 1210 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen && 1211 !rsn_osen) { 1212 if (debug_print) 1213 wpa_dbg(wpa_s, MSG_DEBUG, 1214 " skip - non-OSEN network not allowed"); 1215 continue; 1216 } 1217 1218 if (!wpa_supplicant_match_privacy(bss, ssid)) { 1219 if (debug_print) 1220 wpa_dbg(wpa_s, MSG_DEBUG, 1221 " skip - privacy mismatch"); 1222 continue; 1223 } 1224 1225 if (ssid->mode != IEEE80211_MODE_MESH && !bss_is_ess(bss) && 1226 !bss_is_pbss(bss)) { 1227 if (debug_print) 1228 wpa_dbg(wpa_s, MSG_DEBUG, 1229 " skip - not ESS, PBSS, or MBSS"); 1230 continue; 1231 } 1232 1233 if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) { 1234 if (debug_print) 1235 wpa_dbg(wpa_s, MSG_DEBUG, 1236 " skip - PBSS mismatch (ssid %d bss %d)", 1237 ssid->pbss, bss_is_pbss(bss)); 1238 continue; 1239 } 1240 1241 if (!freq_allowed(ssid->freq_list, bss->freq)) { 1242 if (debug_print) 1243 wpa_dbg(wpa_s, MSG_DEBUG, 1244 " skip - frequency not allowed"); 1245 continue; 1246 } 1247 1248 #ifdef CONFIG_MESH 1249 if (ssid->mode == IEEE80211_MODE_MESH && ssid->frequency > 0 && 1250 ssid->frequency != bss->freq) { 1251 if (debug_print) 1252 wpa_dbg(wpa_s, MSG_DEBUG, 1253 " skip - frequency not allowed (mesh)"); 1254 continue; 1255 } 1256 #endif /* CONFIG_MESH */ 1257 1258 if (!rate_match(wpa_s, bss, debug_print)) { 1259 if (debug_print) 1260 wpa_dbg(wpa_s, MSG_DEBUG, 1261 " skip - rate sets do not match"); 1262 continue; 1263 } 1264 1265 #ifndef CONFIG_IBSS_RSN 1266 if (ssid->mode == WPAS_MODE_IBSS && 1267 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE | 1268 WPA_KEY_MGMT_WPA_NONE))) { 1269 if (debug_print) 1270 wpa_dbg(wpa_s, MSG_DEBUG, 1271 " skip - IBSS RSN not supported in the build"); 1272 continue; 1273 } 1274 #endif /* !CONFIG_IBSS_RSN */ 1275 1276 #ifdef CONFIG_P2P 1277 if (ssid->p2p_group && 1278 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) && 1279 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) { 1280 if (debug_print) 1281 wpa_dbg(wpa_s, MSG_DEBUG, 1282 " skip - no P2P IE seen"); 1283 continue; 1284 } 1285 1286 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) { 1287 struct wpabuf *p2p_ie; 1288 u8 dev_addr[ETH_ALEN]; 1289 1290 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE); 1291 if (ie == NULL) { 1292 if (debug_print) 1293 wpa_dbg(wpa_s, MSG_DEBUG, 1294 " skip - no P2P element"); 1295 continue; 1296 } 1297 p2p_ie = wpa_bss_get_vendor_ie_multi( 1298 bss, P2P_IE_VENDOR_TYPE); 1299 if (p2p_ie == NULL) { 1300 if (debug_print) 1301 wpa_dbg(wpa_s, MSG_DEBUG, 1302 " skip - could not fetch P2P element"); 1303 continue; 1304 } 1305 1306 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0 1307 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr, 1308 ETH_ALEN) != 0) { 1309 if (debug_print) 1310 wpa_dbg(wpa_s, MSG_DEBUG, 1311 " skip - no matching GO P2P Device Address in P2P element"); 1312 wpabuf_free(p2p_ie); 1313 continue; 1314 } 1315 wpabuf_free(p2p_ie); 1316 } 1317 1318 /* 1319 * TODO: skip the AP if its P2P IE has Group Formation 1320 * bit set in the P2P Group Capability Bitmap and we 1321 * are not in Group Formation with that device. 1322 */ 1323 #endif /* CONFIG_P2P */ 1324 1325 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time)) 1326 { 1327 struct os_reltime diff; 1328 1329 os_reltime_sub(&wpa_s->scan_min_time, 1330 &bss->last_update, &diff); 1331 if (debug_print) 1332 wpa_dbg(wpa_s, MSG_DEBUG, 1333 " skip - scan result not recent enough (%u.%06u seconds too old)", 1334 (unsigned int) diff.sec, 1335 (unsigned int) diff.usec); 1336 continue; 1337 } 1338 #ifdef CONFIG_MBO 1339 #ifdef CONFIG_TESTING_OPTIONS 1340 if (wpa_s->ignore_assoc_disallow) 1341 goto skip_assoc_disallow; 1342 #endif /* CONFIG_TESTING_OPTIONS */ 1343 assoc_disallow = wpas_mbo_get_bss_attr( 1344 bss, MBO_ATTR_ID_ASSOC_DISALLOW); 1345 if (assoc_disallow && assoc_disallow[1] >= 1) { 1346 if (debug_print) 1347 wpa_dbg(wpa_s, MSG_DEBUG, 1348 " skip - MBO association disallowed (reason %u)", 1349 assoc_disallow[2]); 1350 continue; 1351 } 1352 1353 if (wpa_is_bss_tmp_disallowed(wpa_s, bss)) { 1354 if (debug_print) 1355 wpa_dbg(wpa_s, MSG_DEBUG, 1356 " skip - AP temporarily disallowed"); 1357 continue; 1358 } 1359 #ifdef CONFIG_TESTING_OPTIONS 1360 skip_assoc_disallow: 1361 #endif /* CONFIG_TESTING_OPTIONS */ 1362 #endif /* CONFIG_MBO */ 1363 1364 #ifdef CONFIG_DPP 1365 if ((ssid->key_mgmt & WPA_KEY_MGMT_DPP) && 1366 !wpa_sm_pmksa_exists(wpa_s->wpa, bss->bssid, ssid) && 1367 (!ssid->dpp_connector || 1368 !ssid->dpp_netaccesskey || 1369 !ssid->dpp_csign)) { 1370 if (debug_print) 1371 wpa_dbg(wpa_s, MSG_DEBUG, 1372 " skip - no PMKSA entry for DPP"); 1373 continue; 1374 } 1375 #endif /* CONFIG_DPP */ 1376 1377 /* Matching configuration found */ 1378 return ssid; 1379 } 1380 1381 /* No matching configuration found */ 1382 return NULL; 1383 } 1384 1385 1386 static struct wpa_bss * 1387 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, 1388 struct wpa_ssid *group, 1389 struct wpa_ssid **selected_ssid, 1390 int only_first_ssid) 1391 { 1392 unsigned int i; 1393 1394 if (wpa_s->current_ssid) { 1395 struct wpa_ssid *ssid; 1396 1397 wpa_dbg(wpa_s, MSG_DEBUG, 1398 "Scan results matching the currently selected network"); 1399 for (i = 0; i < wpa_s->last_scan_res_used; i++) { 1400 struct wpa_bss *bss = wpa_s->last_scan_res[i]; 1401 1402 ssid = wpa_scan_res_match(wpa_s, i, bss, group, 1403 only_first_ssid, 0); 1404 if (ssid != wpa_s->current_ssid) 1405 continue; 1406 wpa_dbg(wpa_s, MSG_DEBUG, "%u: " MACSTR 1407 " freq=%d level=%d snr=%d est_throughput=%u", 1408 i, MAC2STR(bss->bssid), bss->freq, bss->level, 1409 bss->snr, bss->est_throughput); 1410 } 1411 } 1412 1413 if (only_first_ssid) 1414 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d", 1415 group->id); 1416 else 1417 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d", 1418 group->priority); 1419 1420 for (i = 0; i < wpa_s->last_scan_res_used; i++) { 1421 struct wpa_bss *bss = wpa_s->last_scan_res[i]; 1422 1423 wpa_s->owe_transition_select = 1; 1424 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group, 1425 only_first_ssid, 1); 1426 wpa_s->owe_transition_select = 0; 1427 if (!*selected_ssid) 1428 continue; 1429 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR 1430 " ssid='%s'", 1431 MAC2STR(bss->bssid), 1432 wpa_ssid_txt(bss->ssid, bss->ssid_len)); 1433 return bss; 1434 } 1435 1436 return NULL; 1437 } 1438 1439 1440 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s, 1441 struct wpa_ssid **selected_ssid) 1442 { 1443 struct wpa_bss *selected = NULL; 1444 int prio; 1445 struct wpa_ssid *next_ssid = NULL; 1446 struct wpa_ssid *ssid; 1447 1448 if (wpa_s->last_scan_res == NULL || 1449 wpa_s->last_scan_res_used == 0) 1450 return NULL; /* no scan results from last update */ 1451 1452 if (wpa_s->next_ssid) { 1453 /* check that next_ssid is still valid */ 1454 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 1455 if (ssid == wpa_s->next_ssid) 1456 break; 1457 } 1458 next_ssid = ssid; 1459 wpa_s->next_ssid = NULL; 1460 } 1461 1462 while (selected == NULL) { 1463 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 1464 if (next_ssid && next_ssid->priority == 1465 wpa_s->conf->pssid[prio]->priority) { 1466 selected = wpa_supplicant_select_bss( 1467 wpa_s, next_ssid, selected_ssid, 1); 1468 if (selected) 1469 break; 1470 } 1471 selected = wpa_supplicant_select_bss( 1472 wpa_s, wpa_s->conf->pssid[prio], 1473 selected_ssid, 0); 1474 if (selected) 1475 break; 1476 } 1477 1478 if (selected == NULL && wpa_s->blacklist && 1479 !wpa_s->countermeasures) { 1480 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear " 1481 "blacklist and try again"); 1482 wpa_blacklist_clear(wpa_s); 1483 wpa_s->blacklist_cleared++; 1484 } else if (selected == NULL) 1485 break; 1486 } 1487 1488 ssid = *selected_ssid; 1489 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set && 1490 !ssid->passphrase && !ssid->ext_psk) { 1491 const char *field_name, *txt = NULL; 1492 1493 wpa_dbg(wpa_s, MSG_DEBUG, 1494 "PSK/passphrase not yet available for the selected network"); 1495 1496 wpas_notify_network_request(wpa_s, ssid, 1497 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL); 1498 1499 field_name = wpa_supplicant_ctrl_req_to_string( 1500 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt); 1501 if (field_name == NULL) 1502 return NULL; 1503 1504 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt); 1505 1506 selected = NULL; 1507 } 1508 1509 return selected; 1510 } 1511 1512 1513 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s, 1514 int timeout_sec, int timeout_usec) 1515 { 1516 if (!wpa_supplicant_enabled_networks(wpa_s)) { 1517 /* 1518 * No networks are enabled; short-circuit request so 1519 * we don't wait timeout seconds before transitioning 1520 * to INACTIVE state. 1521 */ 1522 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request " 1523 "since there are no enabled networks"); 1524 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); 1525 return; 1526 } 1527 1528 wpa_s->scan_for_connection = 1; 1529 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec); 1530 } 1531 1532 1533 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s, 1534 struct wpa_bss *selected, 1535 struct wpa_ssid *ssid) 1536 { 1537 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) { 1538 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP 1539 "PBC session overlap"); 1540 wpas_notify_wps_event_pbc_overlap(wpa_s); 1541 #ifdef CONFIG_P2P 1542 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT || 1543 wpa_s->p2p_in_provisioning) { 1544 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb, 1545 wpa_s, NULL); 1546 return -1; 1547 } 1548 #endif /* CONFIG_P2P */ 1549 1550 #ifdef CONFIG_WPS 1551 wpas_wps_pbc_overlap(wpa_s); 1552 wpas_wps_cancel(wpa_s); 1553 #endif /* CONFIG_WPS */ 1554 return -1; 1555 } 1556 1557 wpa_msg(wpa_s, MSG_DEBUG, 1558 "Considering connect request: reassociate: %d selected: " 1559 MACSTR " bssid: " MACSTR " pending: " MACSTR 1560 " wpa_state: %s ssid=%p current_ssid=%p", 1561 wpa_s->reassociate, MAC2STR(selected->bssid), 1562 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), 1563 wpa_supplicant_state_txt(wpa_s->wpa_state), 1564 ssid, wpa_s->current_ssid); 1565 1566 /* 1567 * Do not trigger new association unless the BSSID has changed or if 1568 * reassociation is requested. If we are in process of associating with 1569 * the selected BSSID, do not trigger new attempt. 1570 */ 1571 if (wpa_s->reassociate || 1572 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 && 1573 ((wpa_s->wpa_state != WPA_ASSOCIATING && 1574 wpa_s->wpa_state != WPA_AUTHENTICATING) || 1575 (!is_zero_ether_addr(wpa_s->pending_bssid) && 1576 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) != 1577 0) || 1578 (is_zero_ether_addr(wpa_s->pending_bssid) && 1579 ssid != wpa_s->current_ssid)))) { 1580 if (wpa_supplicant_scard_init(wpa_s, ssid)) { 1581 wpa_supplicant_req_new_scan(wpa_s, 10, 0); 1582 return 0; 1583 } 1584 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR, 1585 MAC2STR(selected->bssid)); 1586 wpa_supplicant_associate(wpa_s, selected, ssid); 1587 } else { 1588 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to " 1589 "connect with the selected AP"); 1590 } 1591 1592 return 0; 1593 } 1594 1595 1596 static struct wpa_ssid * 1597 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s) 1598 { 1599 int prio; 1600 struct wpa_ssid *ssid; 1601 1602 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 1603 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext) 1604 { 1605 if (wpas_network_disabled(wpa_s, ssid)) 1606 continue; 1607 #ifndef CONFIG_IBSS_RSN 1608 if (ssid->mode == WPAS_MODE_IBSS && 1609 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE | 1610 WPA_KEY_MGMT_WPA_NONE))) { 1611 wpa_msg(wpa_s, MSG_INFO, 1612 "IBSS RSN not supported in the build - cannot use the profile for SSID '%s'", 1613 wpa_ssid_txt(ssid->ssid, 1614 ssid->ssid_len)); 1615 continue; 1616 } 1617 #endif /* !CONFIG_IBSS_RSN */ 1618 if (ssid->mode == IEEE80211_MODE_IBSS || 1619 ssid->mode == IEEE80211_MODE_AP || 1620 ssid->mode == IEEE80211_MODE_MESH) 1621 return ssid; 1622 } 1623 } 1624 return NULL; 1625 } 1626 1627 1628 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based 1629 * on BSS added and BSS changed events */ 1630 static void wpa_supplicant_rsn_preauth_scan_results( 1631 struct wpa_supplicant *wpa_s) 1632 { 1633 struct wpa_bss *bss; 1634 1635 if (rsn_preauth_scan_results(wpa_s->wpa) < 0) 1636 return; 1637 1638 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1639 const u8 *ssid, *rsn; 1640 1641 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID); 1642 if (ssid == NULL) 1643 continue; 1644 1645 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); 1646 if (rsn == NULL) 1647 continue; 1648 1649 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn); 1650 } 1651 1652 } 1653 1654 1655 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s, 1656 struct wpa_bss *selected, 1657 struct wpa_ssid *ssid) 1658 { 1659 struct wpa_bss *current_bss = NULL; 1660 #ifndef CONFIG_NO_ROAMING 1661 int min_diff, diff; 1662 int to_5ghz; 1663 int cur_est, sel_est; 1664 #endif /* CONFIG_NO_ROAMING */ 1665 1666 if (wpa_s->reassociate) 1667 return 1; /* explicit request to reassociate */ 1668 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1669 return 1; /* we are not associated; continue */ 1670 if (wpa_s->current_ssid == NULL) 1671 return 1; /* unknown current SSID */ 1672 if (wpa_s->current_ssid != ssid) 1673 return 1; /* different network block */ 1674 1675 if (wpas_driver_bss_selection(wpa_s)) 1676 return 0; /* Driver-based roaming */ 1677 1678 if (wpa_s->current_ssid->ssid) 1679 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid, 1680 wpa_s->current_ssid->ssid, 1681 wpa_s->current_ssid->ssid_len); 1682 if (!current_bss) 1683 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid); 1684 1685 if (!current_bss) 1686 return 1; /* current BSS not seen in scan results */ 1687 1688 if (current_bss == selected) 1689 return 0; 1690 1691 if (selected->last_update_idx > current_bss->last_update_idx) 1692 return 1; /* current BSS not seen in the last scan */ 1693 1694 #ifndef CONFIG_NO_ROAMING 1695 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation"); 1696 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR 1697 " freq=%d level=%d snr=%d est_throughput=%u", 1698 MAC2STR(current_bss->bssid), 1699 current_bss->freq, current_bss->level, 1700 current_bss->snr, current_bss->est_throughput); 1701 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR 1702 " freq=%d level=%d snr=%d est_throughput=%u", 1703 MAC2STR(selected->bssid), selected->freq, selected->level, 1704 selected->snr, selected->est_throughput); 1705 1706 if (wpa_s->current_ssid->bssid_set && 1707 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) == 1708 0) { 1709 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS " 1710 "has preferred BSSID"); 1711 return 1; 1712 } 1713 1714 if (selected->est_throughput > current_bss->est_throughput + 5000) { 1715 wpa_dbg(wpa_s, MSG_DEBUG, 1716 "Allow reassociation - selected BSS has better estimated throughput"); 1717 return 1; 1718 } 1719 1720 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000; 1721 1722 if (current_bss->level < 0 && 1723 current_bss->level > selected->level + to_5ghz * 2) { 1724 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better " 1725 "signal level"); 1726 return 0; 1727 } 1728 1729 if (current_bss->est_throughput > selected->est_throughput + 5000) { 1730 wpa_dbg(wpa_s, MSG_DEBUG, 1731 "Skip roam - Current BSS has better estimated throughput"); 1732 return 0; 1733 } 1734 1735 cur_est = current_bss->est_throughput; 1736 sel_est = selected->est_throughput; 1737 min_diff = 2; 1738 if (current_bss->level < 0) { 1739 if (current_bss->level < -85) 1740 min_diff = 1; 1741 else if (current_bss->level < -80) 1742 min_diff = 2; 1743 else if (current_bss->level < -75) 1744 min_diff = 3; 1745 else if (current_bss->level < -70) 1746 min_diff = 4; 1747 else 1748 min_diff = 5; 1749 if (cur_est > sel_est * 1.5) 1750 min_diff += 10; 1751 else if (cur_est > sel_est * 1.2) 1752 min_diff += 5; 1753 else if (cur_est > sel_est * 1.1) 1754 min_diff += 2; 1755 else if (cur_est > sel_est) 1756 min_diff++; 1757 } 1758 if (to_5ghz) { 1759 int reduce = 2; 1760 1761 /* Make it easier to move to 5 GHz band */ 1762 if (sel_est > cur_est * 1.5) 1763 reduce = 5; 1764 else if (sel_est > cur_est * 1.2) 1765 reduce = 4; 1766 else if (sel_est > cur_est * 1.1) 1767 reduce = 3; 1768 1769 if (min_diff > reduce) 1770 min_diff -= reduce; 1771 else 1772 min_diff = 0; 1773 } 1774 diff = abs(current_bss->level - selected->level); 1775 if (diff < min_diff) { 1776 wpa_dbg(wpa_s, MSG_DEBUG, 1777 "Skip roam - too small difference in signal level (%d < %d)", 1778 diff, min_diff); 1779 return 0; 1780 } 1781 1782 wpa_dbg(wpa_s, MSG_DEBUG, 1783 "Allow reassociation due to difference in signal level (%d >= %d)", 1784 diff, min_diff); 1785 return 1; 1786 #else /* CONFIG_NO_ROAMING */ 1787 return 0; 1788 #endif /* CONFIG_NO_ROAMING */ 1789 } 1790 1791 1792 /* 1793 * Return a negative value if no scan results could be fetched or if scan 1794 * results should not be shared with other virtual interfaces. 1795 * Return 0 if scan results were fetched and may be shared with other 1796 * interfaces. 1797 * Return 1 if scan results may be shared with other virtual interfaces but may 1798 * not trigger any operations. 1799 * Return 2 if the interface was removed and cannot be used. 1800 */ 1801 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1802 union wpa_event_data *data, 1803 int own_request, int update_only) 1804 { 1805 struct wpa_scan_results *scan_res = NULL; 1806 int ret = 0; 1807 int ap = 0; 1808 #ifndef CONFIG_NO_RANDOM_POOL 1809 size_t i, num; 1810 #endif /* CONFIG_NO_RANDOM_POOL */ 1811 1812 #ifdef CONFIG_AP 1813 if (wpa_s->ap_iface) 1814 ap = 1; 1815 #endif /* CONFIG_AP */ 1816 1817 wpa_supplicant_notify_scanning(wpa_s, 0); 1818 1819 scan_res = wpa_supplicant_get_scan_results(wpa_s, 1820 data ? &data->scan_info : 1821 NULL, 1); 1822 if (scan_res == NULL) { 1823 if (wpa_s->conf->ap_scan == 2 || ap || 1824 wpa_s->scan_res_handler == scan_only_handler) 1825 return -1; 1826 if (!own_request) 1827 return -1; 1828 if (data && data->scan_info.external_scan) 1829 return -1; 1830 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try " 1831 "scanning again"); 1832 wpa_supplicant_req_new_scan(wpa_s, 1, 0); 1833 ret = -1; 1834 goto scan_work_done; 1835 } 1836 1837 #ifndef CONFIG_NO_RANDOM_POOL 1838 num = scan_res->num; 1839 if (num > 10) 1840 num = 10; 1841 for (i = 0; i < num; i++) { 1842 u8 buf[5]; 1843 struct wpa_scan_res *res = scan_res->res[i]; 1844 buf[0] = res->bssid[5]; 1845 buf[1] = res->qual & 0xff; 1846 buf[2] = res->noise & 0xff; 1847 buf[3] = res->level & 0xff; 1848 buf[4] = res->tsf & 0xff; 1849 random_add_randomness(buf, sizeof(buf)); 1850 } 1851 #endif /* CONFIG_NO_RANDOM_POOL */ 1852 1853 if (update_only) { 1854 ret = 1; 1855 goto scan_work_done; 1856 } 1857 1858 if (own_request && wpa_s->scan_res_handler && 1859 !(data && data->scan_info.external_scan)) { 1860 void (*scan_res_handler)(struct wpa_supplicant *wpa_s, 1861 struct wpa_scan_results *scan_res); 1862 1863 scan_res_handler = wpa_s->scan_res_handler; 1864 wpa_s->scan_res_handler = NULL; 1865 scan_res_handler(wpa_s, scan_res); 1866 ret = 1; 1867 goto scan_work_done; 1868 } 1869 1870 if (ap) { 1871 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode"); 1872 #ifdef CONFIG_AP 1873 if (wpa_s->ap_iface->scan_cb) 1874 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface); 1875 #endif /* CONFIG_AP */ 1876 goto scan_work_done; 1877 } 1878 1879 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)", 1880 wpa_s->own_scan_running, 1881 data ? data->scan_info.external_scan : 0); 1882 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ && 1883 wpa_s->manual_scan_use_id && wpa_s->own_scan_running && 1884 own_request && !(data && data->scan_info.external_scan)) { 1885 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u", 1886 wpa_s->manual_scan_id); 1887 wpa_s->manual_scan_use_id = 0; 1888 } else { 1889 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); 1890 } 1891 wpas_notify_scan_results(wpa_s); 1892 1893 wpas_notify_scan_done(wpa_s, 1); 1894 1895 if (data && data->scan_info.external_scan) { 1896 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection"); 1897 wpa_scan_results_free(scan_res); 1898 return 0; 1899 } 1900 1901 if (wnm_scan_process(wpa_s, 1) > 0) 1902 goto scan_work_done; 1903 1904 if (sme_proc_obss_scan(wpa_s) > 0) 1905 goto scan_work_done; 1906 1907 if (own_request && data && 1908 wpas_beacon_rep_scan_process(wpa_s, scan_res, &data->scan_info) > 0) 1909 goto scan_work_done; 1910 1911 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) 1912 goto scan_work_done; 1913 1914 if (autoscan_notify_scan(wpa_s, scan_res)) 1915 goto scan_work_done; 1916 1917 if (wpa_s->disconnected) { 1918 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 1919 goto scan_work_done; 1920 } 1921 1922 if (!wpas_driver_bss_selection(wpa_s) && 1923 bgscan_notify_scan(wpa_s, scan_res) == 1) 1924 goto scan_work_done; 1925 1926 wpas_wps_update_ap_info(wpa_s, scan_res); 1927 1928 if (wpa_s->wpa_state >= WPA_AUTHENTICATING && 1929 wpa_s->wpa_state < WPA_COMPLETED) 1930 goto scan_work_done; 1931 1932 wpa_scan_results_free(scan_res); 1933 1934 if (own_request && wpa_s->scan_work) { 1935 struct wpa_radio_work *work = wpa_s->scan_work; 1936 wpa_s->scan_work = NULL; 1937 radio_work_done(work); 1938 } 1939 1940 return wpas_select_network_from_last_scan(wpa_s, 1, own_request); 1941 1942 scan_work_done: 1943 wpa_scan_results_free(scan_res); 1944 if (own_request && wpa_s->scan_work) { 1945 struct wpa_radio_work *work = wpa_s->scan_work; 1946 wpa_s->scan_work = NULL; 1947 radio_work_done(work); 1948 } 1949 return ret; 1950 } 1951 1952 1953 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s, 1954 int new_scan, int own_request) 1955 { 1956 struct wpa_bss *selected; 1957 struct wpa_ssid *ssid = NULL; 1958 int time_to_reenable = wpas_reenabled_network_time(wpa_s); 1959 1960 if (time_to_reenable > 0) { 1961 wpa_dbg(wpa_s, MSG_DEBUG, 1962 "Postpone network selection by %d seconds since all networks are disabled", 1963 time_to_reenable); 1964 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL); 1965 eloop_register_timeout(time_to_reenable, 0, 1966 wpas_network_reenabled, wpa_s, NULL); 1967 return 0; 1968 } 1969 1970 if (wpa_s->p2p_mgmt) 1971 return 0; /* no normal connection on p2p_mgmt interface */ 1972 1973 wpa_s->owe_transition_search = 0; 1974 selected = wpa_supplicant_pick_network(wpa_s, &ssid); 1975 1976 #ifdef CONFIG_MESH 1977 if (wpa_s->ifmsh) { 1978 wpa_msg(wpa_s, MSG_INFO, 1979 "Avoiding join because we already joined a mesh group"); 1980 return 0; 1981 } 1982 #endif /* CONFIG_MESH */ 1983 1984 if (selected) { 1985 int skip; 1986 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid); 1987 if (skip) { 1988 if (new_scan) 1989 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1990 return 0; 1991 } 1992 1993 if (ssid != wpa_s->current_ssid && 1994 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 1995 wpa_s->own_disconnect_req = 1; 1996 wpa_supplicant_deauthenticate( 1997 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1998 } 1999 2000 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) { 2001 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed"); 2002 return -1; 2003 } 2004 if (new_scan) 2005 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 2006 /* 2007 * Do not allow other virtual radios to trigger operations based 2008 * on these scan results since we do not want them to start 2009 * other associations at the same time. 2010 */ 2011 return 1; 2012 } else { 2013 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found"); 2014 ssid = wpa_supplicant_pick_new_network(wpa_s); 2015 if (ssid) { 2016 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network"); 2017 wpa_supplicant_associate(wpa_s, NULL, ssid); 2018 if (new_scan) 2019 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 2020 } else if (own_request) { 2021 /* 2022 * No SSID found. If SCAN results are as a result of 2023 * own scan request and not due to a scan request on 2024 * another shared interface, try another scan. 2025 */ 2026 int timeout_sec = wpa_s->scan_interval; 2027 int timeout_usec = 0; 2028 #ifdef CONFIG_P2P 2029 int res; 2030 2031 res = wpas_p2p_scan_no_go_seen(wpa_s); 2032 if (res == 2) 2033 return 2; 2034 if (res == 1) 2035 return 0; 2036 2037 if (wpa_s->p2p_in_provisioning || 2038 wpa_s->show_group_started || 2039 wpa_s->p2p_in_invitation) { 2040 /* 2041 * Use shorter wait during P2P Provisioning 2042 * state and during P2P join-a-group operation 2043 * to speed up group formation. 2044 */ 2045 timeout_sec = 0; 2046 timeout_usec = 250000; 2047 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 2048 timeout_usec); 2049 return 0; 2050 } 2051 #endif /* CONFIG_P2P */ 2052 #ifdef CONFIG_INTERWORKING 2053 if (wpa_s->conf->auto_interworking && 2054 wpa_s->conf->interworking && 2055 wpa_s->conf->cred) { 2056 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: " 2057 "start ANQP fetch since no matching " 2058 "networks found"); 2059 wpa_s->network_select = 1; 2060 wpa_s->auto_network_select = 1; 2061 interworking_start_fetch_anqp(wpa_s); 2062 return 1; 2063 } 2064 #endif /* CONFIG_INTERWORKING */ 2065 #ifdef CONFIG_WPS 2066 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) { 2067 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing"); 2068 timeout_sec = 0; 2069 timeout_usec = 500000; 2070 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 2071 timeout_usec); 2072 return 0; 2073 } 2074 #endif /* CONFIG_WPS */ 2075 #ifdef CONFIG_OWE 2076 if (wpa_s->owe_transition_search) { 2077 wpa_dbg(wpa_s, MSG_DEBUG, 2078 "OWE: Use shorter wait during transition mode search"); 2079 timeout_sec = 0; 2080 timeout_usec = 500000; 2081 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 2082 timeout_usec); 2083 return 0; 2084 } 2085 #endif /* CONFIG_OWE */ 2086 if (wpa_supplicant_req_sched_scan(wpa_s)) 2087 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 2088 timeout_usec); 2089 2090 wpa_msg_ctrl(wpa_s, MSG_INFO, 2091 WPA_EVENT_NETWORK_NOT_FOUND); 2092 } 2093 } 2094 return 0; 2095 } 2096 2097 2098 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 2099 union wpa_event_data *data) 2100 { 2101 struct wpa_supplicant *ifs; 2102 int res; 2103 2104 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1, 0); 2105 if (res == 2) { 2106 /* 2107 * Interface may have been removed, so must not dereference 2108 * wpa_s after this. 2109 */ 2110 return 1; 2111 } 2112 2113 if (res < 0) { 2114 /* 2115 * If no scan results could be fetched, then no need to 2116 * notify those interfaces that did not actually request 2117 * this scan. Similarly, if scan results started a new operation on this 2118 * interface, do not notify other interfaces to avoid concurrent 2119 * operations during a connection attempt. 2120 */ 2121 return 0; 2122 } 2123 2124 /* 2125 * Check other interfaces to see if they share the same radio. If 2126 * so, they get updated with this same scan info. 2127 */ 2128 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, 2129 radio_list) { 2130 if (ifs != wpa_s) { 2131 wpa_printf(MSG_DEBUG, "%s: Updating scan results from " 2132 "sibling", ifs->ifname); 2133 res = _wpa_supplicant_event_scan_results(ifs, data, 0, 2134 res > 0); 2135 if (res < 0) 2136 return 0; 2137 } 2138 } 2139 2140 return 0; 2141 } 2142 2143 #endif /* CONFIG_NO_SCAN_PROCESSING */ 2144 2145 2146 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s) 2147 { 2148 #ifdef CONFIG_NO_SCAN_PROCESSING 2149 return -1; 2150 #else /* CONFIG_NO_SCAN_PROCESSING */ 2151 struct os_reltime now; 2152 2153 wpa_s->ignore_post_flush_scan_res = 0; 2154 2155 if (wpa_s->last_scan_res_used == 0) 2156 return -1; 2157 2158 os_get_reltime(&now); 2159 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) { 2160 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results"); 2161 return -1; 2162 } 2163 2164 return wpas_select_network_from_last_scan(wpa_s, 0, 1); 2165 #endif /* CONFIG_NO_SCAN_PROCESSING */ 2166 } 2167 2168 #ifdef CONFIG_WNM 2169 2170 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx) 2171 { 2172 struct wpa_supplicant *wpa_s = eloop_ctx; 2173 2174 if (wpa_s->wpa_state < WPA_ASSOCIATED) 2175 return; 2176 2177 if (!wpa_s->no_keep_alive) { 2178 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR, 2179 MAC2STR(wpa_s->bssid)); 2180 /* TODO: could skip this if normal data traffic has been sent */ 2181 /* TODO: Consider using some more appropriate data frame for 2182 * this */ 2183 if (wpa_s->l2) 2184 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, 2185 (u8 *) "", 0); 2186 } 2187 2188 #ifdef CONFIG_SME 2189 if (wpa_s->sme.bss_max_idle_period) { 2190 unsigned int msec; 2191 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */ 2192 if (msec > 100) 2193 msec -= 100; 2194 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 2195 wnm_bss_keep_alive, wpa_s, NULL); 2196 } 2197 #endif /* CONFIG_SME */ 2198 } 2199 2200 2201 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s, 2202 const u8 *ies, size_t ies_len) 2203 { 2204 struct ieee802_11_elems elems; 2205 2206 if (ies == NULL) 2207 return; 2208 2209 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 2210 return; 2211 2212 #ifdef CONFIG_SME 2213 if (elems.bss_max_idle_period) { 2214 unsigned int msec; 2215 wpa_s->sme.bss_max_idle_period = 2216 WPA_GET_LE16(elems.bss_max_idle_period); 2217 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 " 2218 "TU)%s", wpa_s->sme.bss_max_idle_period, 2219 (elems.bss_max_idle_period[2] & 0x01) ? 2220 " (protected keep-live required)" : ""); 2221 if (wpa_s->sme.bss_max_idle_period == 0) 2222 wpa_s->sme.bss_max_idle_period = 1; 2223 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) { 2224 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 2225 /* msec times 1000 */ 2226 msec = wpa_s->sme.bss_max_idle_period * 1024; 2227 if (msec > 100) 2228 msec -= 100; 2229 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 2230 wnm_bss_keep_alive, wpa_s, 2231 NULL); 2232 } 2233 } 2234 #endif /* CONFIG_SME */ 2235 } 2236 2237 #endif /* CONFIG_WNM */ 2238 2239 2240 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s) 2241 { 2242 #ifdef CONFIG_WNM 2243 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 2244 #endif /* CONFIG_WNM */ 2245 } 2246 2247 2248 #ifdef CONFIG_INTERWORKING 2249 2250 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map, 2251 size_t len) 2252 { 2253 int res; 2254 2255 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len); 2256 res = wpa_drv_set_qos_map(wpa_s, qos_map, len); 2257 if (res) { 2258 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver"); 2259 } 2260 2261 return res; 2262 } 2263 2264 2265 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s, 2266 const u8 *ies, size_t ies_len) 2267 { 2268 struct ieee802_11_elems elems; 2269 2270 if (ies == NULL) 2271 return; 2272 2273 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 2274 return; 2275 2276 if (elems.qos_map_set) { 2277 wpas_qos_map_set(wpa_s, elems.qos_map_set, 2278 elems.qos_map_set_len); 2279 } 2280 } 2281 2282 #endif /* CONFIG_INTERWORKING */ 2283 2284 2285 static void multi_ap_process_assoc_resp(struct wpa_supplicant *wpa_s, 2286 const u8 *ies, size_t ies_len) 2287 { 2288 struct ieee802_11_elems elems; 2289 const u8 *map_sub_elem, *pos; 2290 size_t len; 2291 2292 if (!wpa_s->current_ssid || 2293 !wpa_s->current_ssid->multi_ap_backhaul_sta || 2294 !ies || 2295 ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 2296 return; 2297 2298 if (!elems.multi_ap || elems.multi_ap_len < 7) { 2299 wpa_printf(MSG_INFO, "AP doesn't support Multi-AP protocol"); 2300 goto fail; 2301 } 2302 2303 pos = elems.multi_ap + 4; 2304 len = elems.multi_ap_len - 4; 2305 2306 map_sub_elem = get_ie(pos, len, MULTI_AP_SUB_ELEM_TYPE); 2307 if (!map_sub_elem || map_sub_elem[1] < 1) { 2308 wpa_printf(MSG_INFO, "invalid Multi-AP sub elem type"); 2309 goto fail; 2310 } 2311 2312 if (!(map_sub_elem[2] & MULTI_AP_BACKHAUL_BSS)) { 2313 if ((map_sub_elem[2] & MULTI_AP_FRONTHAUL_BSS) && 2314 wpa_s->current_ssid->key_mgmt & WPA_KEY_MGMT_WPS) { 2315 wpa_printf(MSG_INFO, 2316 "WPS active, accepting fronthaul-only BSS"); 2317 /* Don't set 4addr mode in this case, so just return */ 2318 return; 2319 } 2320 wpa_printf(MSG_INFO, "AP doesn't support backhaul BSS"); 2321 goto fail; 2322 } 2323 2324 if (wpa_drv_set_4addr_mode(wpa_s, 1) < 0) { 2325 wpa_printf(MSG_ERROR, "Failed to set 4addr mode"); 2326 goto fail; 2327 } 2328 wpa_s->enabled_4addr_mode = 1; 2329 return; 2330 2331 fail: 2332 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2333 } 2334 2335 2336 #ifdef CONFIG_FST 2337 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s, 2338 const u8 *ie, size_t ie_len) 2339 { 2340 struct mb_ies_info mb_ies; 2341 2342 if (!ie || !ie_len || !wpa_s->fst) 2343 return -ENOENT; 2344 2345 os_memset(&mb_ies, 0, sizeof(mb_ies)); 2346 2347 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) { 2348 size_t len; 2349 2350 len = 2 + ie[1]; 2351 if (len > ie_len) { 2352 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found", 2353 ie, ie_len); 2354 break; 2355 } 2356 2357 if (ie[0] == WLAN_EID_MULTI_BAND) { 2358 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found", 2359 (unsigned int) len); 2360 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2; 2361 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2; 2362 mb_ies.nof_ies++; 2363 } 2364 2365 ie_len -= len; 2366 ie += len; 2367 } 2368 2369 if (mb_ies.nof_ies > 0) { 2370 wpabuf_free(wpa_s->received_mb_ies); 2371 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies); 2372 return 0; 2373 } 2374 2375 return -ENOENT; 2376 } 2377 #endif /* CONFIG_FST */ 2378 2379 2380 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s, 2381 union wpa_event_data *data) 2382 { 2383 int l, len, found = 0, wpa_found, rsn_found; 2384 const u8 *p; 2385 #if defined(CONFIG_IEEE80211R) || defined(CONFIG_OWE) 2386 u8 bssid[ETH_ALEN]; 2387 #endif /* CONFIG_IEEE80211R || CONFIG_OWE */ 2388 2389 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); 2390 if (data->assoc_info.req_ies) 2391 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, 2392 data->assoc_info.req_ies_len); 2393 if (data->assoc_info.resp_ies) { 2394 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, 2395 data->assoc_info.resp_ies_len); 2396 #ifdef CONFIG_TDLS 2397 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies, 2398 data->assoc_info.resp_ies_len); 2399 #endif /* CONFIG_TDLS */ 2400 #ifdef CONFIG_WNM 2401 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 2402 data->assoc_info.resp_ies_len); 2403 #endif /* CONFIG_WNM */ 2404 #ifdef CONFIG_INTERWORKING 2405 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 2406 data->assoc_info.resp_ies_len); 2407 #endif /* CONFIG_INTERWORKING */ 2408 if (wpa_s->hw_capab == CAPAB_VHT && 2409 get_ie(data->assoc_info.resp_ies, 2410 data->assoc_info.resp_ies_len, WLAN_EID_VHT_CAP)) 2411 wpa_s->ieee80211ac = 1; 2412 2413 multi_ap_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 2414 data->assoc_info.resp_ies_len); 2415 } 2416 if (data->assoc_info.beacon_ies) 2417 wpa_hexdump(MSG_DEBUG, "beacon_ies", 2418 data->assoc_info.beacon_ies, 2419 data->assoc_info.beacon_ies_len); 2420 if (data->assoc_info.freq) 2421 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", 2422 data->assoc_info.freq); 2423 2424 wpa_s->connection_set = 0; 2425 if (data->assoc_info.req_ies && data->assoc_info.resp_ies) { 2426 struct ieee802_11_elems req_elems, resp_elems; 2427 2428 if (ieee802_11_parse_elems(data->assoc_info.req_ies, 2429 data->assoc_info.req_ies_len, 2430 &req_elems, 0) != ParseFailed && 2431 ieee802_11_parse_elems(data->assoc_info.resp_ies, 2432 data->assoc_info.resp_ies_len, 2433 &resp_elems, 0) != ParseFailed) { 2434 wpa_s->connection_set = 1; 2435 wpa_s->connection_ht = req_elems.ht_capabilities && 2436 resp_elems.ht_capabilities; 2437 wpa_s->connection_vht = req_elems.vht_capabilities && 2438 resp_elems.vht_capabilities; 2439 wpa_s->connection_he = req_elems.he_capabilities && 2440 resp_elems.he_capabilities; 2441 } 2442 } 2443 2444 p = data->assoc_info.req_ies; 2445 l = data->assoc_info.req_ies_len; 2446 2447 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ 2448 while (p && l >= 2) { 2449 len = p[1] + 2; 2450 if (len > l) { 2451 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 2452 p, l); 2453 break; 2454 } 2455 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 2456 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || 2457 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 && 2458 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) || 2459 (p[0] == WLAN_EID_RSN && p[1] >= 2)) { 2460 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) 2461 break; 2462 found = 1; 2463 wpa_find_assoc_pmkid(wpa_s); 2464 break; 2465 } 2466 l -= len; 2467 p += len; 2468 } 2469 if (!found && data->assoc_info.req_ies) 2470 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); 2471 2472 #ifdef CONFIG_FILS 2473 #ifdef CONFIG_SME 2474 if ((wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS || 2475 wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS_SK_PFS) && 2476 (!data->assoc_info.resp_frame || 2477 fils_process_assoc_resp(wpa_s->wpa, 2478 data->assoc_info.resp_frame, 2479 data->assoc_info.resp_frame_len) < 0)) { 2480 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED); 2481 return -1; 2482 } 2483 #endif /* CONFIG_SME */ 2484 2485 /* Additional processing for FILS when SME is in driver */ 2486 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS && 2487 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) 2488 wpa_sm_set_reset_fils_completed(wpa_s->wpa, 1); 2489 #endif /* CONFIG_FILS */ 2490 2491 #ifdef CONFIG_OWE 2492 if (wpa_s->key_mgmt == WPA_KEY_MGMT_OWE && 2493 (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 2494 owe_process_assoc_resp(wpa_s->wpa, bssid, 2495 data->assoc_info.resp_ies, 2496 data->assoc_info.resp_ies_len) < 0)) { 2497 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED); 2498 return -1; 2499 } 2500 #endif /* CONFIG_OWE */ 2501 2502 #ifdef CONFIG_DPP2 2503 wpa_sm_set_dpp_z(wpa_s->wpa, NULL); 2504 if (wpa_s->key_mgmt == WPA_KEY_MGMT_DPP && wpa_s->dpp_pfs) { 2505 struct ieee802_11_elems elems; 2506 2507 if (ieee802_11_parse_elems(data->assoc_info.resp_ies, 2508 data->assoc_info.resp_ies_len, 2509 &elems, 0) == ParseFailed || 2510 !elems.owe_dh) 2511 goto no_pfs; 2512 if (dpp_pfs_process(wpa_s->dpp_pfs, elems.owe_dh, 2513 elems.owe_dh_len) < 0) { 2514 wpa_supplicant_deauthenticate(wpa_s, 2515 WLAN_REASON_UNSPECIFIED); 2516 return -1; 2517 } 2518 2519 wpa_sm_set_dpp_z(wpa_s->wpa, wpa_s->dpp_pfs->secret); 2520 } 2521 no_pfs: 2522 #endif /* CONFIG_DPP2 */ 2523 2524 #ifdef CONFIG_IEEE80211R 2525 #ifdef CONFIG_SME 2526 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { 2527 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 2528 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 2529 data->assoc_info.resp_ies, 2530 data->assoc_info.resp_ies_len, 2531 bssid) < 0) { 2532 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 2533 "Reassociation Response failed"); 2534 wpa_supplicant_deauthenticate( 2535 wpa_s, WLAN_REASON_INVALID_IE); 2536 return -1; 2537 } 2538 } 2539 2540 p = data->assoc_info.resp_ies; 2541 l = data->assoc_info.resp_ies_len; 2542 2543 #ifdef CONFIG_WPS_STRICT 2544 if (p && wpa_s->current_ssid && 2545 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { 2546 struct wpabuf *wps; 2547 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); 2548 if (wps == NULL) { 2549 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " 2550 "include WPS IE in (Re)Association Response"); 2551 return -1; 2552 } 2553 2554 if (wps_validate_assoc_resp(wps) < 0) { 2555 wpabuf_free(wps); 2556 wpa_supplicant_deauthenticate( 2557 wpa_s, WLAN_REASON_INVALID_IE); 2558 return -1; 2559 } 2560 wpabuf_free(wps); 2561 } 2562 #endif /* CONFIG_WPS_STRICT */ 2563 2564 /* Go through the IEs and make a copy of the MDIE, if present. */ 2565 while (p && l >= 2) { 2566 len = p[1] + 2; 2567 if (len > l) { 2568 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 2569 p, l); 2570 break; 2571 } 2572 if (p[0] == WLAN_EID_MOBILITY_DOMAIN && 2573 p[1] >= MOBILITY_DOMAIN_ID_LEN) { 2574 wpa_s->sme.ft_used = 1; 2575 os_memcpy(wpa_s->sme.mobility_domain, p + 2, 2576 MOBILITY_DOMAIN_ID_LEN); 2577 break; 2578 } 2579 l -= len; 2580 p += len; 2581 } 2582 #endif /* CONFIG_SME */ 2583 2584 /* Process FT when SME is in the driver */ 2585 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 2586 wpa_ft_is_completed(wpa_s->wpa)) { 2587 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 2588 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 2589 data->assoc_info.resp_ies, 2590 data->assoc_info.resp_ies_len, 2591 bssid) < 0) { 2592 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 2593 "Reassociation Response failed"); 2594 wpa_supplicant_deauthenticate( 2595 wpa_s, WLAN_REASON_INVALID_IE); 2596 return -1; 2597 } 2598 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done"); 2599 } 2600 2601 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, 2602 data->assoc_info.resp_ies_len); 2603 #endif /* CONFIG_IEEE80211R */ 2604 2605 /* WPA/RSN IE from Beacon/ProbeResp */ 2606 p = data->assoc_info.beacon_ies; 2607 l = data->assoc_info.beacon_ies_len; 2608 2609 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. 2610 */ 2611 wpa_found = rsn_found = 0; 2612 while (p && l >= 2) { 2613 len = p[1] + 2; 2614 if (len > l) { 2615 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", 2616 p, l); 2617 break; 2618 } 2619 if (!wpa_found && 2620 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 2621 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { 2622 wpa_found = 1; 2623 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); 2624 } 2625 2626 if (!rsn_found && 2627 p[0] == WLAN_EID_RSN && p[1] >= 2) { 2628 rsn_found = 1; 2629 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); 2630 } 2631 2632 l -= len; 2633 p += len; 2634 } 2635 2636 if (!wpa_found && data->assoc_info.beacon_ies) 2637 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); 2638 if (!rsn_found && data->assoc_info.beacon_ies) 2639 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); 2640 if (wpa_found || rsn_found) 2641 wpa_s->ap_ies_from_associnfo = 1; 2642 2643 if (wpa_s->assoc_freq && data->assoc_info.freq && 2644 wpa_s->assoc_freq != data->assoc_info.freq) { 2645 wpa_printf(MSG_DEBUG, "Operating frequency changed from " 2646 "%u to %u MHz", 2647 wpa_s->assoc_freq, data->assoc_info.freq); 2648 wpa_supplicant_update_scan_results(wpa_s); 2649 } 2650 2651 wpa_s->assoc_freq = data->assoc_info.freq; 2652 2653 return 0; 2654 } 2655 2656 2657 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s) 2658 { 2659 const u8 *bss_wpa = NULL, *bss_rsn = NULL; 2660 2661 if (!wpa_s->current_bss || !wpa_s->current_ssid) 2662 return -1; 2663 2664 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt)) 2665 return 0; 2666 2667 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss, 2668 WPA_IE_VENDOR_TYPE); 2669 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN); 2670 2671 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, 2672 bss_wpa ? 2 + bss_wpa[1] : 0) || 2673 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, 2674 bss_rsn ? 2 + bss_rsn[1] : 0)) 2675 return -1; 2676 2677 return 0; 2678 } 2679 2680 2681 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s, 2682 union wpa_event_data *data) 2683 { 2684 #ifdef CONFIG_FST 2685 struct assoc_info *ai = data ? &data->assoc_info : NULL; 2686 struct wpa_bss *bss = wpa_s->current_bss; 2687 const u8 *ieprb, *iebcn; 2688 2689 wpabuf_free(wpa_s->received_mb_ies); 2690 wpa_s->received_mb_ies = NULL; 2691 2692 if (ai && 2693 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) { 2694 wpa_printf(MSG_DEBUG, 2695 "FST: MB IEs updated from Association Response frame"); 2696 return; 2697 } 2698 2699 if (ai && 2700 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) { 2701 wpa_printf(MSG_DEBUG, 2702 "FST: MB IEs updated from association event Beacon IEs"); 2703 return; 2704 } 2705 2706 if (!bss) 2707 return; 2708 2709 ieprb = (const u8 *) (bss + 1); 2710 iebcn = ieprb + bss->ie_len; 2711 2712 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len)) 2713 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE"); 2714 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len)) 2715 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE"); 2716 #endif /* CONFIG_FST */ 2717 } 2718 2719 2720 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, 2721 union wpa_event_data *data) 2722 { 2723 u8 bssid[ETH_ALEN]; 2724 int ft_completed, already_authorized; 2725 int new_bss = 0; 2726 2727 #ifdef CONFIG_AP 2728 if (wpa_s->ap_iface) { 2729 if (!data) 2730 return; 2731 hostapd_notif_assoc(wpa_s->ap_iface->bss[0], 2732 data->assoc_info.addr, 2733 data->assoc_info.req_ies, 2734 data->assoc_info.req_ies_len, 2735 data->assoc_info.reassoc); 2736 return; 2737 } 2738 #endif /* CONFIG_AP */ 2739 2740 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL); 2741 2742 ft_completed = wpa_ft_is_completed(wpa_s->wpa); 2743 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) 2744 return; 2745 /* 2746 * FILS authentication can share the same mechanism to mark the 2747 * connection fully authenticated, so set ft_completed also based on 2748 * FILS result. 2749 */ 2750 if (!ft_completed) 2751 ft_completed = wpa_fils_is_completed(wpa_s->wpa); 2752 2753 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { 2754 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID"); 2755 wpa_supplicant_deauthenticate( 2756 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2757 return; 2758 } 2759 2760 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); 2761 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) { 2762 if (os_reltime_initialized(&wpa_s->session_start)) { 2763 os_reltime_age(&wpa_s->session_start, 2764 &wpa_s->session_length); 2765 wpa_s->session_start.sec = 0; 2766 wpa_s->session_start.usec = 0; 2767 wpas_notify_session_length(wpa_s); 2768 } else { 2769 wpas_notify_auth_changed(wpa_s); 2770 os_get_reltime(&wpa_s->session_start); 2771 } 2772 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" 2773 MACSTR, MAC2STR(bssid)); 2774 new_bss = 1; 2775 random_add_randomness(bssid, ETH_ALEN); 2776 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); 2777 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 2778 wpas_notify_bssid_changed(wpa_s); 2779 2780 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { 2781 wpa_clear_keys(wpa_s, bssid); 2782 } 2783 if (wpa_supplicant_select_config(wpa_s) < 0) { 2784 wpa_supplicant_deauthenticate( 2785 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2786 return; 2787 } 2788 } 2789 2790 if (wpa_s->conf->ap_scan == 1 && 2791 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) { 2792 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss) 2793 wpa_msg(wpa_s, MSG_WARNING, 2794 "WPA/RSN IEs not updated"); 2795 } 2796 2797 wpas_fst_update_mb_assoc(wpa_s, data); 2798 2799 #ifdef CONFIG_SME 2800 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); 2801 wpa_s->sme.prev_bssid_set = 1; 2802 wpa_s->sme.last_unprot_disconnect.sec = 0; 2803 #endif /* CONFIG_SME */ 2804 2805 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); 2806 if (wpa_s->current_ssid) { 2807 /* When using scanning (ap_scan=1), SIM PC/SC interface can be 2808 * initialized before association, but for other modes, 2809 * initialize PC/SC here, if the current configuration needs 2810 * smartcard or SIM/USIM. */ 2811 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); 2812 } 2813 wpa_sm_notify_assoc(wpa_s->wpa, bssid); 2814 if (wpa_s->l2) 2815 l2_packet_notify_auth_start(wpa_s->l2); 2816 2817 already_authorized = data && data->assoc_info.authorized; 2818 2819 /* 2820 * Set portEnabled first to FALSE in order to get EAP state machine out 2821 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE 2822 * state machine may transit to AUTHENTICATING state based on obsolete 2823 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to 2824 * AUTHENTICATED without ever giving chance to EAP state machine to 2825 * reset the state. 2826 */ 2827 if (!ft_completed && !already_authorized) { 2828 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 2829 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 2830 } 2831 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || 2832 wpa_s->key_mgmt == WPA_KEY_MGMT_DPP || 2833 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE || ft_completed || 2834 already_authorized) 2835 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 2836 /* 802.1X::portControl = Auto */ 2837 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); 2838 wpa_s->eapol_received = 0; 2839 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 2840 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || 2841 (wpa_s->current_ssid && 2842 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { 2843 if (wpa_s->current_ssid && 2844 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE && 2845 (wpa_s->drv_flags & 2846 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) { 2847 /* 2848 * Set the key after having received joined-IBSS event 2849 * from the driver. 2850 */ 2851 wpa_supplicant_set_wpa_none_key(wpa_s, 2852 wpa_s->current_ssid); 2853 } 2854 wpa_supplicant_cancel_auth_timeout(wpa_s); 2855 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 2856 } else if (!ft_completed) { 2857 /* Timeout for receiving the first EAPOL packet */ 2858 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); 2859 } 2860 wpa_supplicant_cancel_scan(wpa_s); 2861 2862 if (ft_completed) { 2863 /* 2864 * FT protocol completed - make sure EAPOL state machine ends 2865 * up in authenticated. 2866 */ 2867 wpa_supplicant_cancel_auth_timeout(wpa_s); 2868 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 2869 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 2870 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 2871 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK) && 2872 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { 2873 /* 2874 * We are done; the driver will take care of RSN 4-way 2875 * handshake. 2876 */ 2877 wpa_supplicant_cancel_auth_timeout(wpa_s); 2878 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 2879 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 2880 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 2881 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X) && 2882 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { 2883 /* 2884 * The driver will take care of RSN 4-way handshake, so we need 2885 * to allow EAPOL supplicant to complete its work without 2886 * waiting for WPA supplicant. 2887 */ 2888 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 2889 } 2890 2891 wpa_s->last_eapol_matches_bssid = 0; 2892 2893 if (wpa_s->pending_eapol_rx) { 2894 struct os_reltime now, age; 2895 os_get_reltime(&now); 2896 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age); 2897 if (age.sec == 0 && age.usec < 200000 && 2898 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == 2899 0) { 2900 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " 2901 "frame that was received just before " 2902 "association notification"); 2903 wpa_supplicant_rx_eapol( 2904 wpa_s, wpa_s->pending_eapol_rx_src, 2905 wpabuf_head(wpa_s->pending_eapol_rx), 2906 wpabuf_len(wpa_s->pending_eapol_rx)); 2907 } 2908 wpabuf_free(wpa_s->pending_eapol_rx); 2909 wpa_s->pending_eapol_rx = NULL; 2910 } 2911 2912 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 2913 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 2914 wpa_s->current_ssid && 2915 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) { 2916 /* Set static WEP keys again */ 2917 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); 2918 } 2919 2920 #ifdef CONFIG_IBSS_RSN 2921 if (wpa_s->current_ssid && 2922 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 2923 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && 2924 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE && 2925 wpa_s->ibss_rsn == NULL) { 2926 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s, wpa_s->current_ssid); 2927 if (!wpa_s->ibss_rsn) { 2928 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN"); 2929 wpa_supplicant_deauthenticate( 2930 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2931 return; 2932 } 2933 2934 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk); 2935 } 2936 #endif /* CONFIG_IBSS_RSN */ 2937 2938 wpas_wps_notify_assoc(wpa_s, bssid); 2939 2940 if (data) { 2941 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies, 2942 data->assoc_info.resp_ies_len, 2943 &data->assoc_info.wmm_params); 2944 2945 if (wpa_s->reassoc_same_bss) 2946 wmm_ac_restore_tspecs(wpa_s); 2947 } 2948 2949 #ifdef CONFIG_FILS 2950 if (wpa_key_mgmt_fils(wpa_s->key_mgmt)) { 2951 struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, bssid); 2952 const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss); 2953 2954 if (fils_cache_id) 2955 wpa_sm_set_fils_cache_id(wpa_s->wpa, fils_cache_id); 2956 } 2957 #endif /* CONFIG_FILS */ 2958 } 2959 2960 2961 static int disconnect_reason_recoverable(u16 reason_code) 2962 { 2963 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY || 2964 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA || 2965 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA; 2966 } 2967 2968 2969 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s, 2970 u16 reason_code, 2971 int locally_generated) 2972 { 2973 const u8 *bssid; 2974 2975 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 2976 /* 2977 * At least Host AP driver and a Prism3 card seemed to be 2978 * generating streams of disconnected events when configuring 2979 * IBSS for WPA-None. Ignore them for now. 2980 */ 2981 return; 2982 } 2983 2984 bssid = wpa_s->bssid; 2985 if (is_zero_ether_addr(bssid)) 2986 bssid = wpa_s->pending_bssid; 2987 2988 if (!is_zero_ether_addr(bssid) || 2989 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 2990 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR 2991 " reason=%d%s", 2992 MAC2STR(bssid), reason_code, 2993 locally_generated ? " locally_generated=1" : ""); 2994 } 2995 } 2996 2997 2998 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code, 2999 int locally_generated) 3000 { 3001 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE || 3002 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 3003 return 0; /* Not in 4-way handshake with PSK */ 3004 3005 /* 3006 * It looks like connection was lost while trying to go through PSK 3007 * 4-way handshake. Filter out known disconnection cases that are caused 3008 * by something else than PSK mismatch to avoid confusing reports. 3009 */ 3010 3011 if (locally_generated) { 3012 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS) 3013 return 0; 3014 } 3015 3016 return 1; 3017 } 3018 3019 3020 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s, 3021 u16 reason_code, 3022 int locally_generated) 3023 { 3024 const u8 *bssid; 3025 int authenticating; 3026 u8 prev_pending_bssid[ETH_ALEN]; 3027 struct wpa_bss *fast_reconnect = NULL; 3028 struct wpa_ssid *fast_reconnect_ssid = NULL; 3029 struct wpa_ssid *last_ssid; 3030 struct wpa_bss *curr = NULL; 3031 3032 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING; 3033 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN); 3034 3035 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 3036 /* 3037 * At least Host AP driver and a Prism3 card seemed to be 3038 * generating streams of disconnected events when configuring 3039 * IBSS for WPA-None. Ignore them for now. 3040 */ 3041 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in " 3042 "IBSS/WPA-None mode"); 3043 return; 3044 } 3045 3046 if (!wpa_s->disconnected && wpa_s->wpa_state >= WPA_AUTHENTICATING && 3047 reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY && 3048 locally_generated) 3049 /* 3050 * Remove the inactive AP (which is probably out of range) from 3051 * the BSS list after marking disassociation. In particular 3052 * mac80211-based drivers use the 3053 * WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in 3054 * locally generated disconnection events for cases where the 3055 * AP does not reply anymore. 3056 */ 3057 curr = wpa_s->current_bss; 3058 3059 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) { 3060 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - " 3061 "pre-shared key may be incorrect"); 3062 if (wpas_p2p_4way_hs_failed(wpa_s) > 0) 3063 return; /* P2P group removed */ 3064 wpas_auth_failed(wpa_s, "WRONG_KEY"); 3065 } 3066 if (!wpa_s->disconnected && 3067 (!wpa_s->auto_reconnect_disabled || 3068 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS || 3069 wpas_wps_searching(wpa_s) || 3070 wpas_wps_reenable_networks_pending(wpa_s))) { 3071 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to " 3072 "reconnect (wps=%d/%d wpa_state=%d)", 3073 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS, 3074 wpas_wps_searching(wpa_s), 3075 wpa_s->wpa_state); 3076 if (wpa_s->wpa_state == WPA_COMPLETED && 3077 wpa_s->current_ssid && 3078 wpa_s->current_ssid->mode == WPAS_MODE_INFRA && 3079 !locally_generated && 3080 disconnect_reason_recoverable(reason_code)) { 3081 /* 3082 * It looks like the AP has dropped association with 3083 * us, but could allow us to get back in. Try to 3084 * reconnect to the same BSS without full scan to save 3085 * time for some common cases. 3086 */ 3087 fast_reconnect = wpa_s->current_bss; 3088 fast_reconnect_ssid = wpa_s->current_ssid; 3089 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) 3090 wpa_supplicant_req_scan(wpa_s, 0, 100000); 3091 else 3092 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new " 3093 "immediate scan"); 3094 } else { 3095 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not " 3096 "try to re-connect"); 3097 wpa_s->reassociate = 0; 3098 wpa_s->disconnected = 1; 3099 if (!wpa_s->pno) 3100 wpa_supplicant_cancel_sched_scan(wpa_s); 3101 } 3102 bssid = wpa_s->bssid; 3103 if (is_zero_ether_addr(bssid)) 3104 bssid = wpa_s->pending_bssid; 3105 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 3106 wpas_connection_failed(wpa_s, bssid); 3107 wpa_sm_notify_disassoc(wpa_s->wpa); 3108 if (locally_generated) 3109 wpa_s->disconnect_reason = -reason_code; 3110 else 3111 wpa_s->disconnect_reason = reason_code; 3112 wpas_notify_disconnect_reason(wpa_s); 3113 if (wpa_supplicant_dynamic_keys(wpa_s)) { 3114 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys"); 3115 wpa_clear_keys(wpa_s, wpa_s->bssid); 3116 } 3117 last_ssid = wpa_s->current_ssid; 3118 wpa_supplicant_mark_disassoc(wpa_s); 3119 3120 if (curr) 3121 wpa_bss_remove(wpa_s, curr, "Connection to AP lost"); 3122 3123 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) { 3124 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); 3125 wpa_s->current_ssid = last_ssid; 3126 } 3127 3128 if (fast_reconnect && 3129 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) && 3130 !disallowed_bssid(wpa_s, fast_reconnect->bssid) && 3131 !disallowed_ssid(wpa_s, fast_reconnect->ssid, 3132 fast_reconnect->ssid_len) && 3133 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) && 3134 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect)) { 3135 #ifndef CONFIG_NO_SCAN_PROCESSING 3136 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS"); 3137 if (wpa_supplicant_connect(wpa_s, fast_reconnect, 3138 fast_reconnect_ssid) < 0) { 3139 /* Recover through full scan */ 3140 wpa_supplicant_req_scan(wpa_s, 0, 100000); 3141 } 3142 #endif /* CONFIG_NO_SCAN_PROCESSING */ 3143 } else if (fast_reconnect) { 3144 /* 3145 * Could not reconnect to the same BSS due to network being 3146 * disabled. Use a new scan to match the alternative behavior 3147 * above, i.e., to continue automatic reconnection attempt in a 3148 * way that enforces disabled network rules. 3149 */ 3150 wpa_supplicant_req_scan(wpa_s, 0, 100000); 3151 } 3152 } 3153 3154 3155 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 3156 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx) 3157 { 3158 struct wpa_supplicant *wpa_s = eloop_ctx; 3159 3160 if (!wpa_s->pending_mic_error_report) 3161 return; 3162 3163 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report"); 3164 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise); 3165 wpa_s->pending_mic_error_report = 0; 3166 } 3167 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 3168 3169 3170 static void 3171 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s, 3172 union wpa_event_data *data) 3173 { 3174 int pairwise; 3175 struct os_reltime t; 3176 3177 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); 3178 pairwise = (data && data->michael_mic_failure.unicast); 3179 os_get_reltime(&t); 3180 if ((wpa_s->last_michael_mic_error.sec && 3181 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) || 3182 wpa_s->pending_mic_error_report) { 3183 if (wpa_s->pending_mic_error_report) { 3184 /* 3185 * Send the pending MIC error report immediately since 3186 * we are going to start countermeasures and AP better 3187 * do the same. 3188 */ 3189 wpa_sm_key_request(wpa_s->wpa, 1, 3190 wpa_s->pending_mic_error_pairwise); 3191 } 3192 3193 /* Send the new MIC error report immediately since we are going 3194 * to start countermeasures and AP better do the same. 3195 */ 3196 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 3197 3198 /* initialize countermeasures */ 3199 wpa_s->countermeasures = 1; 3200 3201 wpa_blacklist_add(wpa_s, wpa_s->bssid); 3202 3203 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started"); 3204 3205 /* 3206 * Need to wait for completion of request frame. We do not get 3207 * any callback for the message completion, so just wait a 3208 * short while and hope for the best. */ 3209 os_sleep(0, 10000); 3210 3211 wpa_drv_set_countermeasures(wpa_s, 1); 3212 wpa_supplicant_deauthenticate(wpa_s, 3213 WLAN_REASON_MICHAEL_MIC_FAILURE); 3214 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, 3215 wpa_s, NULL); 3216 eloop_register_timeout(60, 0, 3217 wpa_supplicant_stop_countermeasures, 3218 wpa_s, NULL); 3219 /* TODO: mark the AP rejected for 60 second. STA is 3220 * allowed to associate with another AP.. */ 3221 } else { 3222 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 3223 if (wpa_s->mic_errors_seen) { 3224 /* 3225 * Reduce the effectiveness of Michael MIC error 3226 * reports as a means for attacking against TKIP if 3227 * more than one MIC failure is noticed with the same 3228 * PTK. We delay the transmission of the reports by a 3229 * random time between 0 and 60 seconds in order to 3230 * force the attacker wait 60 seconds before getting 3231 * the information on whether a frame resulted in a MIC 3232 * failure. 3233 */ 3234 u8 rval[4]; 3235 int sec; 3236 3237 if (os_get_random(rval, sizeof(rval)) < 0) 3238 sec = os_random() % 60; 3239 else 3240 sec = WPA_GET_BE32(rval) % 60; 3241 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error " 3242 "report %d seconds", sec); 3243 wpa_s->pending_mic_error_report = 1; 3244 wpa_s->pending_mic_error_pairwise = pairwise; 3245 eloop_cancel_timeout( 3246 wpa_supplicant_delayed_mic_error_report, 3247 wpa_s, NULL); 3248 eloop_register_timeout( 3249 sec, os_random() % 1000000, 3250 wpa_supplicant_delayed_mic_error_report, 3251 wpa_s, NULL); 3252 } else { 3253 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 3254 } 3255 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 3256 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 3257 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 3258 } 3259 wpa_s->last_michael_mic_error = t; 3260 wpa_s->mic_errors_seen++; 3261 } 3262 3263 3264 #ifdef CONFIG_TERMINATE_ONLASTIF 3265 static int any_interfaces(struct wpa_supplicant *head) 3266 { 3267 struct wpa_supplicant *wpa_s; 3268 3269 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) 3270 if (!wpa_s->interface_removed) 3271 return 1; 3272 return 0; 3273 } 3274 #endif /* CONFIG_TERMINATE_ONLASTIF */ 3275 3276 3277 static void 3278 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, 3279 union wpa_event_data *data) 3280 { 3281 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) 3282 return; 3283 3284 switch (data->interface_status.ievent) { 3285 case EVENT_INTERFACE_ADDED: 3286 if (!wpa_s->interface_removed) 3287 break; 3288 wpa_s->interface_removed = 0; 3289 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); 3290 if (wpa_supplicant_driver_init(wpa_s) < 0) { 3291 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " 3292 "driver after interface was added"); 3293 } 3294 3295 #ifdef CONFIG_P2P 3296 if (!wpa_s->global->p2p && 3297 !wpa_s->global->p2p_disabled && 3298 !wpa_s->conf->p2p_disabled && 3299 (wpa_s->drv_flags & 3300 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 3301 wpas_p2p_add_p2pdev_interface( 3302 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) { 3303 wpa_printf(MSG_INFO, 3304 "P2P: Failed to enable P2P Device interface"); 3305 /* Try to continue without. P2P will be disabled. */ 3306 } 3307 #endif /* CONFIG_P2P */ 3308 3309 break; 3310 case EVENT_INTERFACE_REMOVED: 3311 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed"); 3312 wpa_s->interface_removed = 1; 3313 wpa_supplicant_mark_disassoc(wpa_s); 3314 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 3315 l2_packet_deinit(wpa_s->l2); 3316 wpa_s->l2 = NULL; 3317 3318 #ifdef CONFIG_P2P 3319 if (wpa_s->global->p2p && 3320 wpa_s->global->p2p_init_wpa_s->parent == wpa_s && 3321 (wpa_s->drv_flags & 3322 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) { 3323 wpa_dbg(wpa_s, MSG_DEBUG, 3324 "Removing P2P Device interface"); 3325 wpa_supplicant_remove_iface( 3326 wpa_s->global, wpa_s->global->p2p_init_wpa_s, 3327 0); 3328 wpa_s->global->p2p_init_wpa_s = NULL; 3329 } 3330 #endif /* CONFIG_P2P */ 3331 3332 #ifdef CONFIG_MATCH_IFACE 3333 if (wpa_s->matched) { 3334 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0); 3335 break; 3336 } 3337 #endif /* CONFIG_MATCH_IFACE */ 3338 3339 #ifdef CONFIG_TERMINATE_ONLASTIF 3340 /* check if last interface */ 3341 if (!any_interfaces(wpa_s->global->ifaces)) 3342 eloop_terminate(); 3343 #endif /* CONFIG_TERMINATE_ONLASTIF */ 3344 break; 3345 } 3346 } 3347 3348 3349 #ifdef CONFIG_TDLS 3350 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s, 3351 union wpa_event_data *data) 3352 { 3353 if (data == NULL) 3354 return; 3355 switch (data->tdls.oper) { 3356 case TDLS_REQUEST_SETUP: 3357 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer); 3358 if (wpa_tdls_is_external_setup(wpa_s->wpa)) 3359 wpa_tdls_start(wpa_s->wpa, data->tdls.peer); 3360 else 3361 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer); 3362 break; 3363 case TDLS_REQUEST_TEARDOWN: 3364 if (wpa_tdls_is_external_setup(wpa_s->wpa)) 3365 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer, 3366 data->tdls.reason_code); 3367 else 3368 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN, 3369 data->tdls.peer); 3370 break; 3371 case TDLS_REQUEST_DISCOVER: 3372 wpa_tdls_send_discovery_request(wpa_s->wpa, 3373 data->tdls.peer); 3374 break; 3375 } 3376 } 3377 #endif /* CONFIG_TDLS */ 3378 3379 3380 #ifdef CONFIG_WNM 3381 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s, 3382 union wpa_event_data *data) 3383 { 3384 if (data == NULL) 3385 return; 3386 switch (data->wnm.oper) { 3387 case WNM_OPER_SLEEP: 3388 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request " 3389 "(action=%d, intval=%d)", 3390 data->wnm.sleep_action, data->wnm.sleep_intval); 3391 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action, 3392 data->wnm.sleep_intval, NULL); 3393 break; 3394 } 3395 } 3396 #endif /* CONFIG_WNM */ 3397 3398 3399 #ifdef CONFIG_IEEE80211R 3400 static void 3401 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s, 3402 union wpa_event_data *data) 3403 { 3404 if (data == NULL) 3405 return; 3406 3407 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies, 3408 data->ft_ies.ies_len, 3409 data->ft_ies.ft_action, 3410 data->ft_ies.target_ap, 3411 data->ft_ies.ric_ies, 3412 data->ft_ies.ric_ies_len) < 0) { 3413 /* TODO: prevent MLME/driver from trying to associate? */ 3414 } 3415 } 3416 #endif /* CONFIG_IEEE80211R */ 3417 3418 3419 #ifdef CONFIG_IBSS_RSN 3420 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s, 3421 union wpa_event_data *data) 3422 { 3423 struct wpa_ssid *ssid; 3424 if (wpa_s->wpa_state < WPA_ASSOCIATED) 3425 return; 3426 if (data == NULL) 3427 return; 3428 ssid = wpa_s->current_ssid; 3429 if (ssid == NULL) 3430 return; 3431 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 3432 return; 3433 3434 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer); 3435 } 3436 3437 3438 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s, 3439 union wpa_event_data *data) 3440 { 3441 struct wpa_ssid *ssid = wpa_s->current_ssid; 3442 3443 if (ssid == NULL) 3444 return; 3445 3446 /* check if the ssid is correctly configured as IBSS/RSN */ 3447 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 3448 return; 3449 3450 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame, 3451 data->rx_mgmt.frame_len); 3452 } 3453 #endif /* CONFIG_IBSS_RSN */ 3454 3455 3456 #ifdef CONFIG_IEEE80211R 3457 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, 3458 size_t len) 3459 { 3460 const u8 *sta_addr, *target_ap_addr; 3461 u16 status; 3462 3463 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); 3464 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) 3465 return; /* only SME case supported for now */ 3466 if (len < 1 + 2 * ETH_ALEN + 2) 3467 return; 3468 if (data[0] != 2) 3469 return; /* Only FT Action Response is supported for now */ 3470 sta_addr = data + 1; 3471 target_ap_addr = data + 1 + ETH_ALEN; 3472 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); 3473 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " 3474 MACSTR " TargetAP " MACSTR " status %u", 3475 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); 3476 3477 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { 3478 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR 3479 " in FT Action Response", MAC2STR(sta_addr)); 3480 return; 3481 } 3482 3483 if (status) { 3484 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " 3485 "failure (status code %d)", status); 3486 /* TODO: report error to FT code(?) */ 3487 return; 3488 } 3489 3490 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, 3491 len - (1 + 2 * ETH_ALEN + 2), 1, 3492 target_ap_addr, NULL, 0) < 0) 3493 return; 3494 3495 #ifdef CONFIG_SME 3496 { 3497 struct wpa_bss *bss; 3498 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); 3499 if (bss) 3500 wpa_s->sme.freq = bss->freq; 3501 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; 3502 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, 3503 WLAN_AUTH_FT); 3504 } 3505 #endif /* CONFIG_SME */ 3506 } 3507 #endif /* CONFIG_IEEE80211R */ 3508 3509 3510 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, 3511 struct unprot_deauth *e) 3512 { 3513 #ifdef CONFIG_IEEE80211W 3514 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " 3515 "dropped: " MACSTR " -> " MACSTR 3516 " (reason code %u)", 3517 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 3518 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 3519 #endif /* CONFIG_IEEE80211W */ 3520 } 3521 3522 3523 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, 3524 struct unprot_disassoc *e) 3525 { 3526 #ifdef CONFIG_IEEE80211W 3527 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " 3528 "dropped: " MACSTR " -> " MACSTR 3529 " (reason code %u)", 3530 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 3531 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 3532 #endif /* CONFIG_IEEE80211W */ 3533 } 3534 3535 3536 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr, 3537 u16 reason_code, int locally_generated, 3538 const u8 *ie, size_t ie_len, int deauth) 3539 { 3540 #ifdef CONFIG_AP 3541 if (wpa_s->ap_iface && addr) { 3542 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr); 3543 return; 3544 } 3545 3546 if (wpa_s->ap_iface) { 3547 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode"); 3548 return; 3549 } 3550 #endif /* CONFIG_AP */ 3551 3552 if (!locally_generated) 3553 wpa_s->own_disconnect_req = 0; 3554 3555 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated); 3556 3557 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED || 3558 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || 3559 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) && 3560 eapol_sm_failed(wpa_s->eapol))) && 3561 !wpa_s->eap_expected_failure)) 3562 wpas_auth_failed(wpa_s, "AUTH_FAILED"); 3563 3564 #ifdef CONFIG_P2P 3565 if (deauth && reason_code > 0) { 3566 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len, 3567 locally_generated) > 0) { 3568 /* 3569 * The interface was removed, so cannot continue 3570 * processing any additional operations after this. 3571 */ 3572 return; 3573 } 3574 } 3575 #endif /* CONFIG_P2P */ 3576 3577 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code, 3578 locally_generated); 3579 } 3580 3581 3582 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s, 3583 struct disassoc_info *info) 3584 { 3585 u16 reason_code = 0; 3586 int locally_generated = 0; 3587 const u8 *addr = NULL; 3588 const u8 *ie = NULL; 3589 size_t ie_len = 0; 3590 3591 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); 3592 3593 if (info) { 3594 addr = info->addr; 3595 ie = info->ie; 3596 ie_len = info->ie_len; 3597 reason_code = info->reason_code; 3598 locally_generated = info->locally_generated; 3599 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code, 3600 locally_generated ? " (locally generated)" : ""); 3601 if (addr) 3602 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 3603 MAC2STR(addr)); 3604 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", 3605 ie, ie_len); 3606 } 3607 3608 #ifdef CONFIG_AP 3609 if (wpa_s->ap_iface && info && info->addr) { 3610 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr); 3611 return; 3612 } 3613 3614 if (wpa_s->ap_iface) { 3615 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode"); 3616 return; 3617 } 3618 #endif /* CONFIG_AP */ 3619 3620 #ifdef CONFIG_P2P 3621 if (info) { 3622 wpas_p2p_disassoc_notif( 3623 wpa_s, info->addr, reason_code, info->ie, info->ie_len, 3624 locally_generated); 3625 } 3626 #endif /* CONFIG_P2P */ 3627 3628 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 3629 sme_event_disassoc(wpa_s, info); 3630 3631 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated, 3632 ie, ie_len, 0); 3633 } 3634 3635 3636 static void wpas_event_deauth(struct wpa_supplicant *wpa_s, 3637 struct deauth_info *info) 3638 { 3639 u16 reason_code = 0; 3640 int locally_generated = 0; 3641 const u8 *addr = NULL; 3642 const u8 *ie = NULL; 3643 size_t ie_len = 0; 3644 3645 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification"); 3646 3647 if (info) { 3648 addr = info->addr; 3649 ie = info->ie; 3650 ie_len = info->ie_len; 3651 reason_code = info->reason_code; 3652 locally_generated = info->locally_generated; 3653 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 3654 reason_code, 3655 locally_generated ? " (locally generated)" : ""); 3656 if (addr) { 3657 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 3658 MAC2STR(addr)); 3659 } 3660 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)", 3661 ie, ie_len); 3662 } 3663 3664 wpa_reset_ft_completed(wpa_s->wpa); 3665 3666 wpas_event_disconnect(wpa_s, addr, reason_code, 3667 locally_generated, ie, ie_len, 1); 3668 } 3669 3670 3671 static const char * reg_init_str(enum reg_change_initiator init) 3672 { 3673 switch (init) { 3674 case REGDOM_SET_BY_CORE: 3675 return "CORE"; 3676 case REGDOM_SET_BY_USER: 3677 return "USER"; 3678 case REGDOM_SET_BY_DRIVER: 3679 return "DRIVER"; 3680 case REGDOM_SET_BY_COUNTRY_IE: 3681 return "COUNTRY_IE"; 3682 case REGDOM_BEACON_HINT: 3683 return "BEACON_HINT"; 3684 } 3685 return "?"; 3686 } 3687 3688 3689 static const char * reg_type_str(enum reg_type type) 3690 { 3691 switch (type) { 3692 case REGDOM_TYPE_UNKNOWN: 3693 return "UNKNOWN"; 3694 case REGDOM_TYPE_COUNTRY: 3695 return "COUNTRY"; 3696 case REGDOM_TYPE_WORLD: 3697 return "WORLD"; 3698 case REGDOM_TYPE_CUSTOM_WORLD: 3699 return "CUSTOM_WORLD"; 3700 case REGDOM_TYPE_INTERSECTION: 3701 return "INTERSECTION"; 3702 } 3703 return "?"; 3704 } 3705 3706 3707 void wpa_supplicant_update_channel_list(struct wpa_supplicant *wpa_s, 3708 struct channel_list_changed *info) 3709 { 3710 struct wpa_supplicant *ifs; 3711 u8 dfs_domain; 3712 3713 /* 3714 * To allow backwards compatibility with higher level layers that 3715 * assumed the REGDOM_CHANGE event is sent over the initially added 3716 * interface. Find the highest parent of this interface and use it to 3717 * send the event. 3718 */ 3719 for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent) 3720 ; 3721 3722 if (info) { 3723 wpa_msg(ifs, MSG_INFO, 3724 WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s", 3725 reg_init_str(info->initiator), reg_type_str(info->type), 3726 info->alpha2[0] ? " alpha2=" : "", 3727 info->alpha2[0] ? info->alpha2 : ""); 3728 } 3729 3730 if (wpa_s->drv_priv == NULL) 3731 return; /* Ignore event during drv initialization */ 3732 3733 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, 3734 radio_list) { 3735 wpa_printf(MSG_DEBUG, "%s: Updating hw mode", 3736 ifs->ifname); 3737 free_hw_features(ifs); 3738 ifs->hw.modes = wpa_drv_get_hw_feature_data( 3739 ifs, &ifs->hw.num_modes, &ifs->hw.flags, &dfs_domain); 3740 3741 /* Restart PNO/sched_scan with updated channel list */ 3742 if (ifs->pno) { 3743 wpas_stop_pno(ifs); 3744 wpas_start_pno(ifs); 3745 } else if (ifs->sched_scanning && !ifs->pno_sched_pending) { 3746 wpa_dbg(ifs, MSG_DEBUG, 3747 "Channel list changed - restart sched_scan"); 3748 wpas_scan_restart_sched_scan(ifs); 3749 } 3750 } 3751 3752 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER); 3753 } 3754 3755 3756 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s, 3757 const u8 *frame, size_t len, int freq, 3758 int rssi) 3759 { 3760 const struct ieee80211_mgmt *mgmt; 3761 const u8 *payload; 3762 size_t plen; 3763 u8 category; 3764 3765 if (len < IEEE80211_HDRLEN + 2) 3766 return; 3767 3768 mgmt = (const struct ieee80211_mgmt *) frame; 3769 payload = frame + IEEE80211_HDRLEN; 3770 category = *payload++; 3771 plen = len - IEEE80211_HDRLEN - 1; 3772 3773 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR 3774 " Category=%u DataLen=%d freq=%d MHz", 3775 MAC2STR(mgmt->sa), category, (int) plen, freq); 3776 3777 if (category == WLAN_ACTION_WMM) { 3778 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen); 3779 return; 3780 } 3781 3782 #ifdef CONFIG_IEEE80211R 3783 if (category == WLAN_ACTION_FT) { 3784 ft_rx_action(wpa_s, payload, plen); 3785 return; 3786 } 3787 #endif /* CONFIG_IEEE80211R */ 3788 3789 #ifdef CONFIG_IEEE80211W 3790 #ifdef CONFIG_SME 3791 if (category == WLAN_ACTION_SA_QUERY) { 3792 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen); 3793 return; 3794 } 3795 #endif /* CONFIG_SME */ 3796 #endif /* CONFIG_IEEE80211W */ 3797 3798 #ifdef CONFIG_WNM 3799 if (mgmt->u.action.category == WLAN_ACTION_WNM) { 3800 ieee802_11_rx_wnm_action(wpa_s, mgmt, len); 3801 return; 3802 } 3803 #endif /* CONFIG_WNM */ 3804 3805 #ifdef CONFIG_GAS 3806 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC || 3807 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) && 3808 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid, 3809 mgmt->u.action.category, 3810 payload, plen, freq) == 0) 3811 return; 3812 #endif /* CONFIG_GAS */ 3813 3814 #ifdef CONFIG_GAS_SERVER 3815 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC || 3816 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) && 3817 gas_server_rx(wpa_s->gas_server, mgmt->da, mgmt->sa, mgmt->bssid, 3818 mgmt->u.action.category, 3819 payload, plen, freq) == 0) 3820 return; 3821 #endif /* CONFIG_GAS_SERVER */ 3822 3823 #ifdef CONFIG_TDLS 3824 if (category == WLAN_ACTION_PUBLIC && plen >= 4 && 3825 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) { 3826 wpa_dbg(wpa_s, MSG_DEBUG, 3827 "TDLS: Received Discovery Response from " MACSTR, 3828 MAC2STR(mgmt->sa)); 3829 return; 3830 } 3831 #endif /* CONFIG_TDLS */ 3832 3833 #ifdef CONFIG_INTERWORKING 3834 if (category == WLAN_ACTION_QOS && plen >= 1 && 3835 payload[0] == QOS_QOS_MAP_CONFIG) { 3836 const u8 *pos = payload + 1; 3837 size_t qlen = plen - 1; 3838 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from " 3839 MACSTR, MAC2STR(mgmt->sa)); 3840 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 && 3841 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET && 3842 pos[1] <= qlen - 2 && pos[1] >= 16) 3843 wpas_qos_map_set(wpa_s, pos + 2, pos[1]); 3844 return; 3845 } 3846 #endif /* CONFIG_INTERWORKING */ 3847 3848 if (category == WLAN_ACTION_RADIO_MEASUREMENT && 3849 payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) { 3850 wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa, 3851 mgmt->da, 3852 payload + 1, 3853 plen - 1); 3854 return; 3855 } 3856 3857 if (category == WLAN_ACTION_RADIO_MEASUREMENT && 3858 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) { 3859 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1); 3860 return; 3861 } 3862 3863 if (category == WLAN_ACTION_RADIO_MEASUREMENT && 3864 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) { 3865 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa, 3866 payload + 1, plen - 1, 3867 rssi); 3868 return; 3869 } 3870 3871 #ifdef CONFIG_FST 3872 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) { 3873 fst_rx_action(wpa_s->fst, mgmt, len); 3874 return; 3875 } 3876 #endif /* CONFIG_FST */ 3877 3878 #ifdef CONFIG_DPP 3879 if (category == WLAN_ACTION_PUBLIC && plen >= 5 && 3880 payload[0] == WLAN_PA_VENDOR_SPECIFIC && 3881 WPA_GET_BE24(&payload[1]) == OUI_WFA && 3882 payload[4] == DPP_OUI_TYPE) { 3883 payload++; 3884 plen--; 3885 wpas_dpp_rx_action(wpa_s, mgmt->sa, payload, plen, freq); 3886 return; 3887 } 3888 #endif /* CONFIG_DPP */ 3889 3890 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 3891 category, payload, plen, freq); 3892 if (wpa_s->ifmsh) 3893 mesh_mpm_action_rx(wpa_s, mgmt, len); 3894 } 3895 3896 3897 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s, 3898 union wpa_event_data *event) 3899 { 3900 struct wpa_freq_range_list *list; 3901 char *str = NULL; 3902 3903 list = &event->freq_range; 3904 3905 if (list->num) 3906 str = freq_range_list_str(list); 3907 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s", 3908 str ? str : ""); 3909 3910 #ifdef CONFIG_P2P 3911 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) { 3912 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range", 3913 __func__); 3914 } else { 3915 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event"); 3916 3917 /* 3918 * The update channel flow will also take care of moving a GO 3919 * from the unsafe frequency if needed. 3920 */ 3921 wpas_p2p_update_channel_list(wpa_s, 3922 WPAS_P2P_CHANNEL_UPDATE_AVOID); 3923 } 3924 #endif /* CONFIG_P2P */ 3925 3926 os_free(str); 3927 } 3928 3929 3930 static void wpa_supplicant_event_port_authorized(struct wpa_supplicant *wpa_s) 3931 { 3932 if (wpa_s->wpa_state == WPA_ASSOCIATED) { 3933 wpa_supplicant_cancel_auth_timeout(wpa_s); 3934 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 3935 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 3936 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 3937 } 3938 } 3939 3940 3941 static unsigned int wpas_event_cac_ms(const struct wpa_supplicant *wpa_s, 3942 int freq) 3943 { 3944 size_t i; 3945 int j; 3946 3947 for (i = 0; i < wpa_s->hw.num_modes; i++) { 3948 const struct hostapd_hw_modes *mode = &wpa_s->hw.modes[i]; 3949 3950 for (j = 0; j < mode->num_channels; j++) { 3951 const struct hostapd_channel_data *chan; 3952 3953 chan = &mode->channels[j]; 3954 if (chan->freq == freq) 3955 return chan->dfs_cac_ms; 3956 } 3957 } 3958 3959 return 0; 3960 } 3961 3962 3963 static void wpas_event_dfs_cac_started(struct wpa_supplicant *wpa_s, 3964 struct dfs_event *radar) 3965 { 3966 #if defined(NEED_AP_MLME) && defined(CONFIG_AP) 3967 if (wpa_s->ap_iface || wpa_s->ifmsh) { 3968 wpas_ap_event_dfs_cac_started(wpa_s, radar); 3969 } else 3970 #endif /* NEED_AP_MLME && CONFIG_AP */ 3971 { 3972 unsigned int cac_time = wpas_event_cac_ms(wpa_s, radar->freq); 3973 3974 cac_time /= 1000; /* convert from ms to sec */ 3975 if (!cac_time) 3976 cac_time = 10 * 60; /* max timeout: 10 minutes */ 3977 3978 /* Restart auth timeout: CAC time added to initial timeout */ 3979 wpas_auth_timeout_restart(wpa_s, cac_time); 3980 } 3981 } 3982 3983 3984 static void wpas_event_dfs_cac_finished(struct wpa_supplicant *wpa_s, 3985 struct dfs_event *radar) 3986 { 3987 #if defined(NEED_AP_MLME) && defined(CONFIG_AP) 3988 if (wpa_s->ap_iface || wpa_s->ifmsh) { 3989 wpas_ap_event_dfs_cac_finished(wpa_s, radar); 3990 } else 3991 #endif /* NEED_AP_MLME && CONFIG_AP */ 3992 { 3993 /* Restart auth timeout with original value after CAC is 3994 * finished */ 3995 wpas_auth_timeout_restart(wpa_s, 0); 3996 } 3997 } 3998 3999 4000 static void wpas_event_dfs_cac_aborted(struct wpa_supplicant *wpa_s, 4001 struct dfs_event *radar) 4002 { 4003 #if defined(NEED_AP_MLME) && defined(CONFIG_AP) 4004 if (wpa_s->ap_iface || wpa_s->ifmsh) { 4005 wpas_ap_event_dfs_cac_aborted(wpa_s, radar); 4006 } else 4007 #endif /* NEED_AP_MLME && CONFIG_AP */ 4008 { 4009 /* Restart auth timeout with original value after CAC is 4010 * aborted */ 4011 wpas_auth_timeout_restart(wpa_s, 0); 4012 } 4013 } 4014 4015 4016 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s, 4017 union wpa_event_data *data) 4018 { 4019 wpa_dbg(wpa_s, MSG_DEBUG, 4020 "Connection authorized by device, previous state %d", 4021 wpa_s->wpa_state); 4022 4023 wpa_supplicant_event_port_authorized(wpa_s); 4024 4025 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr); 4026 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck, 4027 data->assoc_info.ptk_kck_len, 4028 data->assoc_info.ptk_kek, 4029 data->assoc_info.ptk_kek_len); 4030 #ifdef CONFIG_FILS 4031 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) { 4032 struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid); 4033 const u8 *fils_cache_id = wpa_bss_get_fils_cache_id(bss); 4034 4035 /* Update ERP next sequence number */ 4036 eapol_sm_update_erp_next_seq_num( 4037 wpa_s->eapol, data->assoc_info.fils_erp_next_seq_num); 4038 4039 if (data->assoc_info.fils_pmk && data->assoc_info.fils_pmkid) { 4040 /* Add the new PMK and PMKID to the PMKSA cache */ 4041 wpa_sm_pmksa_cache_add(wpa_s->wpa, 4042 data->assoc_info.fils_pmk, 4043 data->assoc_info.fils_pmk_len, 4044 data->assoc_info.fils_pmkid, 4045 wpa_s->bssid, fils_cache_id); 4046 } else if (data->assoc_info.fils_pmkid) { 4047 /* Update the current PMKSA used for this connection */ 4048 pmksa_cache_set_current(wpa_s->wpa, 4049 data->assoc_info.fils_pmkid, 4050 NULL, NULL, 0, NULL, 0); 4051 } 4052 } 4053 #endif /* CONFIG_FILS */ 4054 } 4055 4056 4057 static void wpas_event_assoc_reject(struct wpa_supplicant *wpa_s, 4058 union wpa_event_data *data) 4059 { 4060 const u8 *bssid = data->assoc_reject.bssid; 4061 4062 if (!bssid || is_zero_ether_addr(bssid)) 4063 bssid = wpa_s->pending_bssid; 4064 4065 if (data->assoc_reject.bssid) 4066 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 4067 "bssid=" MACSTR " status_code=%u%s%s%s", 4068 MAC2STR(data->assoc_reject.bssid), 4069 data->assoc_reject.status_code, 4070 data->assoc_reject.timed_out ? " timeout" : "", 4071 data->assoc_reject.timeout_reason ? "=" : "", 4072 data->assoc_reject.timeout_reason ? 4073 data->assoc_reject.timeout_reason : ""); 4074 else 4075 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 4076 "status_code=%u%s%s%s", 4077 data->assoc_reject.status_code, 4078 data->assoc_reject.timed_out ? " timeout" : "", 4079 data->assoc_reject.timeout_reason ? "=" : "", 4080 data->assoc_reject.timeout_reason ? 4081 data->assoc_reject.timeout_reason : ""); 4082 wpa_s->assoc_status_code = data->assoc_reject.status_code; 4083 wpas_notify_assoc_status_code(wpa_s); 4084 4085 #ifdef CONFIG_OWE 4086 if (data->assoc_reject.status_code == 4087 WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED && 4088 wpa_s->key_mgmt == WPA_KEY_MGMT_OWE && 4089 wpa_s->current_ssid && 4090 wpa_s->current_ssid->owe_group == 0 && 4091 wpa_s->last_owe_group != 21) { 4092 struct wpa_ssid *ssid = wpa_s->current_ssid; 4093 struct wpa_bss *bss = wpa_s->current_bss; 4094 4095 if (!bss) { 4096 bss = wpa_supplicant_get_new_bss(wpa_s, bssid); 4097 if (!bss) { 4098 wpas_connection_failed(wpa_s, bssid); 4099 wpa_supplicant_mark_disassoc(wpa_s); 4100 return; 4101 } 4102 } 4103 wpa_printf(MSG_DEBUG, "OWE: Try next supported DH group"); 4104 wpas_connect_work_done(wpa_s); 4105 wpa_supplicant_mark_disassoc(wpa_s); 4106 wpa_supplicant_connect(wpa_s, bss, ssid); 4107 return; 4108 } 4109 #endif /* CONFIG_OWE */ 4110 4111 #ifdef CONFIG_MBO 4112 if (data->assoc_reject.status_code == 4113 WLAN_STATUS_DENIED_POOR_CHANNEL_CONDITIONS && 4114 wpa_s->current_bss && data->assoc_reject.bssid && 4115 data->assoc_reject.resp_ies) { 4116 const u8 *rssi_rej; 4117 4118 rssi_rej = mbo_get_attr_from_ies( 4119 data->assoc_reject.resp_ies, 4120 data->assoc_reject.resp_ies_len, 4121 OCE_ATTR_ID_RSSI_BASED_ASSOC_REJECT); 4122 if (rssi_rej && rssi_rej[1] == 2) { 4123 wpa_printf(MSG_DEBUG, 4124 "OCE: RSSI-based association rejection from " 4125 MACSTR " (Delta RSSI: %u, Retry Delay: %u)", 4126 MAC2STR(data->assoc_reject.bssid), 4127 rssi_rej[2], rssi_rej[3]); 4128 wpa_bss_tmp_disallow(wpa_s, 4129 data->assoc_reject.bssid, 4130 rssi_rej[3], 4131 rssi_rej[2] + 4132 wpa_s->current_bss->level); 4133 } 4134 } 4135 #endif /* CONFIG_MBO */ 4136 4137 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) { 4138 sme_event_assoc_reject(wpa_s, data); 4139 return; 4140 } 4141 4142 /* Driver-based SME cases */ 4143 4144 #ifdef CONFIG_SAE 4145 if (wpa_s->current_ssid && 4146 wpa_key_mgmt_sae(wpa_s->current_ssid->key_mgmt) && 4147 !data->assoc_reject.timed_out) { 4148 wpa_dbg(wpa_s, MSG_DEBUG, "SAE: Drop PMKSA cache entry"); 4149 wpa_sm_aborted_cached(wpa_s->wpa); 4150 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid); 4151 } 4152 #endif /* CONFIG_SAE */ 4153 4154 #ifdef CONFIG_DPP 4155 if (wpa_s->current_ssid && 4156 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_DPP && 4157 !data->assoc_reject.timed_out) { 4158 wpa_dbg(wpa_s, MSG_DEBUG, "DPP: Drop PMKSA cache entry"); 4159 wpa_sm_aborted_cached(wpa_s->wpa); 4160 wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid); 4161 } 4162 #endif /* CONFIG_DPP */ 4163 4164 #ifdef CONFIG_FILS 4165 /* Update ERP next sequence number */ 4166 if (wpa_s->auth_alg == WPA_AUTH_ALG_FILS) { 4167 eapol_sm_update_erp_next_seq_num( 4168 wpa_s->eapol, 4169 data->assoc_reject.fils_erp_next_seq_num); 4170 fils_connection_failure(wpa_s); 4171 } 4172 #endif /* CONFIG_FILS */ 4173 4174 wpas_connection_failed(wpa_s, bssid); 4175 wpa_supplicant_mark_disassoc(wpa_s); 4176 } 4177 4178 4179 void wpa_supplicant_event(void *ctx, enum wpa_event_type event, 4180 union wpa_event_data *data) 4181 { 4182 struct wpa_supplicant *wpa_s = ctx; 4183 int resched; 4184 #ifndef CONFIG_NO_STDOUT_DEBUG 4185 int level = MSG_DEBUG; 4186 #endif /* CONFIG_NO_STDOUT_DEBUG */ 4187 4188 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && 4189 event != EVENT_INTERFACE_ENABLED && 4190 event != EVENT_INTERFACE_STATUS && 4191 event != EVENT_SCAN_RESULTS && 4192 event != EVENT_SCHED_SCAN_STOPPED) { 4193 wpa_dbg(wpa_s, MSG_DEBUG, 4194 "Ignore event %s (%d) while interface is disabled", 4195 event_to_string(event), event); 4196 return; 4197 } 4198 4199 #ifndef CONFIG_NO_STDOUT_DEBUG 4200 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) { 4201 const struct ieee80211_hdr *hdr; 4202 u16 fc; 4203 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame; 4204 fc = le_to_host16(hdr->frame_control); 4205 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 4206 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) 4207 level = MSG_EXCESSIVE; 4208 } 4209 4210 wpa_dbg(wpa_s, level, "Event %s (%d) received", 4211 event_to_string(event), event); 4212 #endif /* CONFIG_NO_STDOUT_DEBUG */ 4213 4214 switch (event) { 4215 case EVENT_AUTH: 4216 #ifdef CONFIG_FST 4217 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies, 4218 data->auth.ies_len)) 4219 wpa_printf(MSG_DEBUG, 4220 "FST: MB IEs updated from auth IE"); 4221 #endif /* CONFIG_FST */ 4222 sme_event_auth(wpa_s, data); 4223 wpa_s->auth_status_code = data->auth.status_code; 4224 wpas_notify_auth_status_code(wpa_s); 4225 break; 4226 case EVENT_ASSOC: 4227 #ifdef CONFIG_TESTING_OPTIONS 4228 if (wpa_s->ignore_auth_resp) { 4229 wpa_printf(MSG_INFO, 4230 "EVENT_ASSOC - ignore_auth_resp active!"); 4231 break; 4232 } 4233 if (wpa_s->testing_resend_assoc) { 4234 wpa_printf(MSG_INFO, 4235 "EVENT_DEAUTH - testing_resend_assoc"); 4236 break; 4237 } 4238 #endif /* CONFIG_TESTING_OPTIONS */ 4239 wpa_supplicant_event_assoc(wpa_s, data); 4240 wpa_s->assoc_status_code = WLAN_STATUS_SUCCESS; 4241 if (data && 4242 (data->assoc_info.authorized || 4243 (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 4244 wpa_fils_is_completed(wpa_s->wpa)))) 4245 wpa_supplicant_event_assoc_auth(wpa_s, data); 4246 if (data) { 4247 wpa_msg(wpa_s, MSG_INFO, 4248 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u", 4249 data->assoc_info.subnet_status); 4250 } 4251 break; 4252 case EVENT_DISASSOC: 4253 wpas_event_disassoc(wpa_s, 4254 data ? &data->disassoc_info : NULL); 4255 break; 4256 case EVENT_DEAUTH: 4257 #ifdef CONFIG_TESTING_OPTIONS 4258 if (wpa_s->ignore_auth_resp) { 4259 wpa_printf(MSG_INFO, 4260 "EVENT_DEAUTH - ignore_auth_resp active!"); 4261 break; 4262 } 4263 if (wpa_s->testing_resend_assoc) { 4264 wpa_printf(MSG_INFO, 4265 "EVENT_DEAUTH - testing_resend_assoc"); 4266 break; 4267 } 4268 #endif /* CONFIG_TESTING_OPTIONS */ 4269 wpas_event_deauth(wpa_s, 4270 data ? &data->deauth_info : NULL); 4271 break; 4272 case EVENT_MICHAEL_MIC_FAILURE: 4273 wpa_supplicant_event_michael_mic_failure(wpa_s, data); 4274 break; 4275 #ifndef CONFIG_NO_SCAN_PROCESSING 4276 case EVENT_SCAN_STARTED: 4277 if (wpa_s->own_scan_requested || 4278 (data && !data->scan_info.external_scan)) { 4279 struct os_reltime diff; 4280 4281 os_get_reltime(&wpa_s->scan_start_time); 4282 os_reltime_sub(&wpa_s->scan_start_time, 4283 &wpa_s->scan_trigger_time, &diff); 4284 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds", 4285 diff.sec, diff.usec); 4286 wpa_s->own_scan_requested = 0; 4287 wpa_s->own_scan_running = 1; 4288 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ && 4289 wpa_s->manual_scan_use_id) { 4290 wpa_msg_ctrl(wpa_s, MSG_INFO, 4291 WPA_EVENT_SCAN_STARTED "id=%u", 4292 wpa_s->manual_scan_id); 4293 } else { 4294 wpa_msg_ctrl(wpa_s, MSG_INFO, 4295 WPA_EVENT_SCAN_STARTED); 4296 } 4297 } else { 4298 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan"); 4299 wpa_s->radio->external_scan_running = 1; 4300 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED); 4301 } 4302 break; 4303 case EVENT_SCAN_RESULTS: 4304 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 4305 wpa_s->scan_res_handler = NULL; 4306 wpa_s->own_scan_running = 0; 4307 wpa_s->radio->external_scan_running = 0; 4308 wpa_s->last_scan_req = NORMAL_SCAN_REQ; 4309 break; 4310 } 4311 4312 if (!(data && data->scan_info.external_scan) && 4313 os_reltime_initialized(&wpa_s->scan_start_time)) { 4314 struct os_reltime now, diff; 4315 os_get_reltime(&now); 4316 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff); 4317 wpa_s->scan_start_time.sec = 0; 4318 wpa_s->scan_start_time.usec = 0; 4319 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds", 4320 diff.sec, diff.usec); 4321 } 4322 if (wpa_supplicant_event_scan_results(wpa_s, data)) 4323 break; /* interface may have been removed */ 4324 if (!(data && data->scan_info.external_scan)) 4325 wpa_s->own_scan_running = 0; 4326 if (data && data->scan_info.nl_scan_event) 4327 wpa_s->radio->external_scan_running = 0; 4328 radio_work_check_next(wpa_s); 4329 break; 4330 #endif /* CONFIG_NO_SCAN_PROCESSING */ 4331 case EVENT_ASSOCINFO: 4332 wpa_supplicant_event_associnfo(wpa_s, data); 4333 break; 4334 case EVENT_INTERFACE_STATUS: 4335 wpa_supplicant_event_interface_status(wpa_s, data); 4336 break; 4337 case EVENT_PMKID_CANDIDATE: 4338 wpa_supplicant_event_pmkid_candidate(wpa_s, data); 4339 break; 4340 #ifdef CONFIG_TDLS 4341 case EVENT_TDLS: 4342 wpa_supplicant_event_tdls(wpa_s, data); 4343 break; 4344 #endif /* CONFIG_TDLS */ 4345 #ifdef CONFIG_WNM 4346 case EVENT_WNM: 4347 wpa_supplicant_event_wnm(wpa_s, data); 4348 break; 4349 #endif /* CONFIG_WNM */ 4350 #ifdef CONFIG_IEEE80211R 4351 case EVENT_FT_RESPONSE: 4352 wpa_supplicant_event_ft_response(wpa_s, data); 4353 break; 4354 #endif /* CONFIG_IEEE80211R */ 4355 #ifdef CONFIG_IBSS_RSN 4356 case EVENT_IBSS_RSN_START: 4357 wpa_supplicant_event_ibss_rsn_start(wpa_s, data); 4358 break; 4359 #endif /* CONFIG_IBSS_RSN */ 4360 case EVENT_ASSOC_REJECT: 4361 wpas_event_assoc_reject(wpa_s, data); 4362 break; 4363 case EVENT_AUTH_TIMED_OUT: 4364 /* It is possible to get this event from earlier connection */ 4365 if (wpa_s->current_ssid && 4366 wpa_s->current_ssid->mode == WPAS_MODE_MESH) { 4367 wpa_dbg(wpa_s, MSG_DEBUG, 4368 "Ignore AUTH_TIMED_OUT in mesh configuration"); 4369 break; 4370 } 4371 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 4372 sme_event_auth_timed_out(wpa_s, data); 4373 break; 4374 case EVENT_ASSOC_TIMED_OUT: 4375 /* It is possible to get this event from earlier connection */ 4376 if (wpa_s->current_ssid && 4377 wpa_s->current_ssid->mode == WPAS_MODE_MESH) { 4378 wpa_dbg(wpa_s, MSG_DEBUG, 4379 "Ignore ASSOC_TIMED_OUT in mesh configuration"); 4380 break; 4381 } 4382 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 4383 sme_event_assoc_timed_out(wpa_s, data); 4384 break; 4385 case EVENT_TX_STATUS: 4386 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR 4387 " type=%d stype=%d", 4388 MAC2STR(data->tx_status.dst), 4389 data->tx_status.type, data->tx_status.stype); 4390 #ifdef CONFIG_AP 4391 if (wpa_s->ap_iface == NULL) { 4392 #ifdef CONFIG_OFFCHANNEL 4393 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 4394 data->tx_status.stype == WLAN_FC_STYPE_ACTION) 4395 offchannel_send_action_tx_status( 4396 wpa_s, data->tx_status.dst, 4397 data->tx_status.data, 4398 data->tx_status.data_len, 4399 data->tx_status.ack ? 4400 OFFCHANNEL_SEND_ACTION_SUCCESS : 4401 OFFCHANNEL_SEND_ACTION_NO_ACK); 4402 #endif /* CONFIG_OFFCHANNEL */ 4403 break; 4404 } 4405 #endif /* CONFIG_AP */ 4406 #ifdef CONFIG_OFFCHANNEL 4407 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" 4408 MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst)); 4409 /* 4410 * Catch TX status events for Action frames we sent via group 4411 * interface in GO mode, or via standalone AP interface. 4412 * Note, wpa_s->p2pdev will be the same as wpa_s->parent, 4413 * except when the primary interface is used as a GO interface 4414 * (for drivers which do not have group interface concurrency) 4415 */ 4416 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 4417 data->tx_status.stype == WLAN_FC_STYPE_ACTION && 4418 os_memcmp(wpa_s->p2pdev->pending_action_dst, 4419 data->tx_status.dst, ETH_ALEN) == 0) { 4420 offchannel_send_action_tx_status( 4421 wpa_s->p2pdev, data->tx_status.dst, 4422 data->tx_status.data, 4423 data->tx_status.data_len, 4424 data->tx_status.ack ? 4425 OFFCHANNEL_SEND_ACTION_SUCCESS : 4426 OFFCHANNEL_SEND_ACTION_NO_ACK); 4427 break; 4428 } 4429 #endif /* CONFIG_OFFCHANNEL */ 4430 #ifdef CONFIG_AP 4431 switch (data->tx_status.type) { 4432 case WLAN_FC_TYPE_MGMT: 4433 ap_mgmt_tx_cb(wpa_s, data->tx_status.data, 4434 data->tx_status.data_len, 4435 data->tx_status.stype, 4436 data->tx_status.ack); 4437 break; 4438 case WLAN_FC_TYPE_DATA: 4439 ap_tx_status(wpa_s, data->tx_status.dst, 4440 data->tx_status.data, 4441 data->tx_status.data_len, 4442 data->tx_status.ack); 4443 break; 4444 } 4445 #endif /* CONFIG_AP */ 4446 break; 4447 #ifdef CONFIG_AP 4448 case EVENT_EAPOL_TX_STATUS: 4449 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst, 4450 data->eapol_tx_status.data, 4451 data->eapol_tx_status.data_len, 4452 data->eapol_tx_status.ack); 4453 break; 4454 case EVENT_DRIVER_CLIENT_POLL_OK: 4455 ap_client_poll_ok(wpa_s, data->client_poll.addr); 4456 break; 4457 case EVENT_RX_FROM_UNKNOWN: 4458 if (wpa_s->ap_iface == NULL) 4459 break; 4460 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr, 4461 data->rx_from_unknown.wds); 4462 break; 4463 #endif /* CONFIG_AP */ 4464 case EVENT_CH_SWITCH: 4465 if (!data || !wpa_s->current_ssid) 4466 break; 4467 4468 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CHANNEL_SWITCH 4469 "freq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d", 4470 data->ch_switch.freq, 4471 data->ch_switch.ht_enabled, 4472 data->ch_switch.ch_offset, 4473 channel_width_to_string(data->ch_switch.ch_width), 4474 data->ch_switch.cf1, 4475 data->ch_switch.cf2); 4476 4477 wpa_s->assoc_freq = data->ch_switch.freq; 4478 wpa_s->current_ssid->frequency = data->ch_switch.freq; 4479 4480 #ifdef CONFIG_AP 4481 if (wpa_s->current_ssid->mode == WPAS_MODE_AP || 4482 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO || 4483 wpa_s->current_ssid->mode == WPAS_MODE_MESH || 4484 wpa_s->current_ssid->mode == 4485 WPAS_MODE_P2P_GROUP_FORMATION) { 4486 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq, 4487 data->ch_switch.ht_enabled, 4488 data->ch_switch.ch_offset, 4489 data->ch_switch.ch_width, 4490 data->ch_switch.cf1, 4491 data->ch_switch.cf2); 4492 } 4493 #endif /* CONFIG_AP */ 4494 4495 #ifdef CONFIG_IEEE80211W 4496 sme_event_ch_switch(wpa_s); 4497 #endif /* CONFIG_IEEE80211W */ 4498 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS); 4499 wnm_clear_coloc_intf_reporting(wpa_s); 4500 break; 4501 #ifdef CONFIG_AP 4502 #ifdef NEED_AP_MLME 4503 case EVENT_DFS_RADAR_DETECTED: 4504 if (data) 4505 wpas_ap_event_dfs_radar_detected(wpa_s, 4506 &data->dfs_event); 4507 break; 4508 case EVENT_DFS_NOP_FINISHED: 4509 if (data) 4510 wpas_ap_event_dfs_cac_nop_finished(wpa_s, 4511 &data->dfs_event); 4512 break; 4513 #endif /* NEED_AP_MLME */ 4514 #endif /* CONFIG_AP */ 4515 case EVENT_DFS_CAC_STARTED: 4516 if (data) 4517 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event); 4518 break; 4519 case EVENT_DFS_CAC_FINISHED: 4520 if (data) 4521 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event); 4522 break; 4523 case EVENT_DFS_CAC_ABORTED: 4524 if (data) 4525 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event); 4526 break; 4527 case EVENT_RX_MGMT: { 4528 u16 fc, stype; 4529 const struct ieee80211_mgmt *mgmt; 4530 4531 #ifdef CONFIG_TESTING_OPTIONS 4532 if (wpa_s->ext_mgmt_frame_handling) { 4533 struct rx_mgmt *rx = &data->rx_mgmt; 4534 size_t hex_len = 2 * rx->frame_len + 1; 4535 char *hex = os_malloc(hex_len); 4536 if (hex) { 4537 wpa_snprintf_hex(hex, hex_len, 4538 rx->frame, rx->frame_len); 4539 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s", 4540 rx->freq, rx->datarate, rx->ssi_signal, 4541 hex); 4542 os_free(hex); 4543 } 4544 break; 4545 } 4546 #endif /* CONFIG_TESTING_OPTIONS */ 4547 4548 mgmt = (const struct ieee80211_mgmt *) 4549 data->rx_mgmt.frame; 4550 fc = le_to_host16(mgmt->frame_control); 4551 stype = WLAN_FC_GET_STYPE(fc); 4552 4553 #ifdef CONFIG_AP 4554 if (wpa_s->ap_iface == NULL) { 4555 #endif /* CONFIG_AP */ 4556 #ifdef CONFIG_P2P 4557 if (stype == WLAN_FC_STYPE_PROBE_REQ && 4558 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) { 4559 const u8 *src = mgmt->sa; 4560 const u8 *ie; 4561 size_t ie_len; 4562 4563 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN; 4564 ie_len = data->rx_mgmt.frame_len - 4565 IEEE80211_HDRLEN; 4566 wpas_p2p_probe_req_rx( 4567 wpa_s, src, mgmt->da, 4568 mgmt->bssid, ie, ie_len, 4569 data->rx_mgmt.freq, 4570 data->rx_mgmt.ssi_signal); 4571 break; 4572 } 4573 #endif /* CONFIG_P2P */ 4574 #ifdef CONFIG_IBSS_RSN 4575 if (wpa_s->current_ssid && 4576 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 4577 stype == WLAN_FC_STYPE_AUTH && 4578 data->rx_mgmt.frame_len >= 30) { 4579 wpa_supplicant_event_ibss_auth(wpa_s, data); 4580 break; 4581 } 4582 #endif /* CONFIG_IBSS_RSN */ 4583 4584 if (stype == WLAN_FC_STYPE_ACTION) { 4585 wpas_event_rx_mgmt_action( 4586 wpa_s, data->rx_mgmt.frame, 4587 data->rx_mgmt.frame_len, 4588 data->rx_mgmt.freq, 4589 data->rx_mgmt.ssi_signal); 4590 break; 4591 } 4592 4593 if (wpa_s->ifmsh) { 4594 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt); 4595 break; 4596 } 4597 4598 #ifdef CONFIG_SAE 4599 if (stype == WLAN_FC_STYPE_AUTH && 4600 !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 4601 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SAE)) { 4602 sme_external_auth_mgmt_rx( 4603 wpa_s, data->rx_mgmt.frame, 4604 data->rx_mgmt.frame_len); 4605 break; 4606 } 4607 #endif /* CONFIG_SAE */ 4608 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " 4609 "management frame in non-AP mode"); 4610 break; 4611 #ifdef CONFIG_AP 4612 } 4613 4614 if (stype == WLAN_FC_STYPE_PROBE_REQ && 4615 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) { 4616 const u8 *ie; 4617 size_t ie_len; 4618 4619 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN; 4620 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN; 4621 4622 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da, 4623 mgmt->bssid, ie, ie_len, 4624 data->rx_mgmt.ssi_signal); 4625 } 4626 4627 ap_mgmt_rx(wpa_s, &data->rx_mgmt); 4628 #endif /* CONFIG_AP */ 4629 break; 4630 } 4631 case EVENT_RX_PROBE_REQ: 4632 if (data->rx_probe_req.sa == NULL || 4633 data->rx_probe_req.ie == NULL) 4634 break; 4635 #ifdef CONFIG_AP 4636 if (wpa_s->ap_iface) { 4637 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], 4638 data->rx_probe_req.sa, 4639 data->rx_probe_req.da, 4640 data->rx_probe_req.bssid, 4641 data->rx_probe_req.ie, 4642 data->rx_probe_req.ie_len, 4643 data->rx_probe_req.ssi_signal); 4644 break; 4645 } 4646 #endif /* CONFIG_AP */ 4647 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa, 4648 data->rx_probe_req.da, 4649 data->rx_probe_req.bssid, 4650 data->rx_probe_req.ie, 4651 data->rx_probe_req.ie_len, 4652 0, 4653 data->rx_probe_req.ssi_signal); 4654 break; 4655 case EVENT_REMAIN_ON_CHANNEL: 4656 #ifdef CONFIG_OFFCHANNEL 4657 offchannel_remain_on_channel_cb( 4658 wpa_s, data->remain_on_channel.freq, 4659 data->remain_on_channel.duration); 4660 #endif /* CONFIG_OFFCHANNEL */ 4661 wpas_p2p_remain_on_channel_cb( 4662 wpa_s, data->remain_on_channel.freq, 4663 data->remain_on_channel.duration); 4664 break; 4665 case EVENT_CANCEL_REMAIN_ON_CHANNEL: 4666 #ifdef CONFIG_OFFCHANNEL 4667 offchannel_cancel_remain_on_channel_cb( 4668 wpa_s, data->remain_on_channel.freq); 4669 #endif /* CONFIG_OFFCHANNEL */ 4670 wpas_p2p_cancel_remain_on_channel_cb( 4671 wpa_s, data->remain_on_channel.freq); 4672 #ifdef CONFIG_DPP 4673 wpas_dpp_cancel_remain_on_channel_cb( 4674 wpa_s, data->remain_on_channel.freq); 4675 #endif /* CONFIG_DPP */ 4676 break; 4677 case EVENT_EAPOL_RX: 4678 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, 4679 data->eapol_rx.data, 4680 data->eapol_rx.data_len); 4681 break; 4682 case EVENT_SIGNAL_CHANGE: 4683 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE 4684 "above=%d signal=%d noise=%d txrate=%d", 4685 data->signal_change.above_threshold, 4686 data->signal_change.current_signal, 4687 data->signal_change.current_noise, 4688 data->signal_change.current_txrate); 4689 wpa_bss_update_level(wpa_s->current_bss, 4690 data->signal_change.current_signal); 4691 bgscan_notify_signal_change( 4692 wpa_s, data->signal_change.above_threshold, 4693 data->signal_change.current_signal, 4694 data->signal_change.current_noise, 4695 data->signal_change.current_txrate); 4696 break; 4697 case EVENT_INTERFACE_MAC_CHANGED: 4698 wpa_supplicant_update_mac_addr(wpa_s); 4699 break; 4700 case EVENT_INTERFACE_ENABLED: 4701 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); 4702 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 4703 wpa_supplicant_update_mac_addr(wpa_s); 4704 if (wpa_s->p2p_mgmt) { 4705 wpa_supplicant_set_state(wpa_s, 4706 WPA_DISCONNECTED); 4707 break; 4708 } 4709 4710 #ifdef CONFIG_AP 4711 if (!wpa_s->ap_iface) { 4712 wpa_supplicant_set_state(wpa_s, 4713 WPA_DISCONNECTED); 4714 wpa_s->scan_req = NORMAL_SCAN_REQ; 4715 wpa_supplicant_req_scan(wpa_s, 0, 0); 4716 } else 4717 wpa_supplicant_set_state(wpa_s, 4718 WPA_COMPLETED); 4719 #else /* CONFIG_AP */ 4720 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 4721 wpa_supplicant_req_scan(wpa_s, 0, 0); 4722 #endif /* CONFIG_AP */ 4723 } 4724 break; 4725 case EVENT_INTERFACE_DISABLED: 4726 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); 4727 #ifdef CONFIG_P2P 4728 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO || 4729 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group && 4730 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) { 4731 /* 4732 * Mark interface disabled if this happens to end up not 4733 * being removed as a separate P2P group interface. 4734 */ 4735 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 4736 /* 4737 * The interface was externally disabled. Remove 4738 * it assuming an external entity will start a 4739 * new session if needed. 4740 */ 4741 if (wpa_s->current_ssid && 4742 wpa_s->current_ssid->p2p_group) 4743 wpas_p2p_interface_unavailable(wpa_s); 4744 else 4745 wpas_p2p_disconnect(wpa_s); 4746 /* 4747 * wpa_s instance may have been freed, so must not use 4748 * it here anymore. 4749 */ 4750 break; 4751 } 4752 if (wpa_s->p2p_scan_work && wpa_s->global->p2p && 4753 p2p_in_progress(wpa_s->global->p2p) > 1) { 4754 /* This radio work will be cancelled, so clear P2P 4755 * state as well. 4756 */ 4757 p2p_stop_find(wpa_s->global->p2p); 4758 } 4759 #endif /* CONFIG_P2P */ 4760 4761 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) { 4762 /* 4763 * Indicate disconnection to keep ctrl_iface events 4764 * consistent. 4765 */ 4766 wpa_supplicant_event_disassoc( 4767 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1); 4768 } 4769 wpa_supplicant_mark_disassoc(wpa_s); 4770 wpa_bss_flush(wpa_s); 4771 radio_remove_works(wpa_s, NULL, 0); 4772 4773 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 4774 break; 4775 case EVENT_CHANNEL_LIST_CHANGED: 4776 wpa_supplicant_update_channel_list( 4777 wpa_s, &data->channel_list_changed); 4778 break; 4779 case EVENT_INTERFACE_UNAVAILABLE: 4780 wpas_p2p_interface_unavailable(wpa_s); 4781 break; 4782 case EVENT_BEST_CHANNEL: 4783 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " 4784 "(%d %d %d)", 4785 data->best_chan.freq_24, data->best_chan.freq_5, 4786 data->best_chan.freq_overall); 4787 wpa_s->best_24_freq = data->best_chan.freq_24; 4788 wpa_s->best_5_freq = data->best_chan.freq_5; 4789 wpa_s->best_overall_freq = data->best_chan.freq_overall; 4790 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, 4791 data->best_chan.freq_5, 4792 data->best_chan.freq_overall); 4793 break; 4794 case EVENT_UNPROT_DEAUTH: 4795 wpa_supplicant_event_unprot_deauth(wpa_s, 4796 &data->unprot_deauth); 4797 break; 4798 case EVENT_UNPROT_DISASSOC: 4799 wpa_supplicant_event_unprot_disassoc(wpa_s, 4800 &data->unprot_disassoc); 4801 break; 4802 case EVENT_STATION_LOW_ACK: 4803 #ifdef CONFIG_AP 4804 if (wpa_s->ap_iface && data) 4805 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], 4806 data->low_ack.addr); 4807 #endif /* CONFIG_AP */ 4808 #ifdef CONFIG_TDLS 4809 if (data) 4810 wpa_tdls_disable_unreachable_link(wpa_s->wpa, 4811 data->low_ack.addr); 4812 #endif /* CONFIG_TDLS */ 4813 break; 4814 case EVENT_IBSS_PEER_LOST: 4815 #ifdef CONFIG_IBSS_RSN 4816 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer); 4817 #endif /* CONFIG_IBSS_RSN */ 4818 break; 4819 case EVENT_DRIVER_GTK_REKEY: 4820 if (os_memcmp(data->driver_gtk_rekey.bssid, 4821 wpa_s->bssid, ETH_ALEN)) 4822 break; 4823 if (!wpa_s->wpa) 4824 break; 4825 wpa_sm_update_replay_ctr(wpa_s->wpa, 4826 data->driver_gtk_rekey.replay_ctr); 4827 break; 4828 case EVENT_SCHED_SCAN_STOPPED: 4829 wpa_s->sched_scanning = 0; 4830 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s); 4831 wpa_supplicant_notify_scanning(wpa_s, 0); 4832 4833 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 4834 break; 4835 4836 /* 4837 * If the driver stopped scanning without being requested to, 4838 * request a new scan to continue scanning for networks. 4839 */ 4840 if (!wpa_s->sched_scan_stop_req && 4841 wpa_s->wpa_state == WPA_SCANNING) { 4842 wpa_dbg(wpa_s, MSG_DEBUG, 4843 "Restart scanning after unexpected sched_scan stop event"); 4844 wpa_supplicant_req_scan(wpa_s, 1, 0); 4845 break; 4846 } 4847 4848 wpa_s->sched_scan_stop_req = 0; 4849 4850 /* 4851 * Start a new sched scan to continue searching for more SSIDs 4852 * either if timed out or PNO schedule scan is pending. 4853 */ 4854 if (wpa_s->sched_scan_timed_out) { 4855 wpa_supplicant_req_sched_scan(wpa_s); 4856 } else if (wpa_s->pno_sched_pending) { 4857 wpa_s->pno_sched_pending = 0; 4858 wpas_start_pno(wpa_s); 4859 } else if (resched) { 4860 wpa_supplicant_req_scan(wpa_s, 0, 0); 4861 } 4862 4863 break; 4864 case EVENT_WPS_BUTTON_PUSHED: 4865 #ifdef CONFIG_WPS 4866 wpas_wps_start_pbc(wpa_s, NULL, 0, 0); 4867 #endif /* CONFIG_WPS */ 4868 break; 4869 case EVENT_AVOID_FREQUENCIES: 4870 wpa_supplicant_notify_avoid_freq(wpa_s, data); 4871 break; 4872 case EVENT_CONNECT_FAILED_REASON: 4873 #ifdef CONFIG_AP 4874 if (!wpa_s->ap_iface || !data) 4875 break; 4876 hostapd_event_connect_failed_reason( 4877 wpa_s->ap_iface->bss[0], 4878 data->connect_failed_reason.addr, 4879 data->connect_failed_reason.code); 4880 #endif /* CONFIG_AP */ 4881 break; 4882 case EVENT_NEW_PEER_CANDIDATE: 4883 #ifdef CONFIG_MESH 4884 if (!wpa_s->ifmsh || !data) 4885 break; 4886 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer, 4887 data->mesh_peer.ies, 4888 data->mesh_peer.ie_len); 4889 #endif /* CONFIG_MESH */ 4890 break; 4891 case EVENT_SURVEY: 4892 #ifdef CONFIG_AP 4893 if (!wpa_s->ap_iface) 4894 break; 4895 hostapd_event_get_survey(wpa_s->ap_iface, 4896 &data->survey_results); 4897 #endif /* CONFIG_AP */ 4898 break; 4899 case EVENT_ACS_CHANNEL_SELECTED: 4900 #ifdef CONFIG_AP 4901 #ifdef CONFIG_ACS 4902 if (!wpa_s->ap_iface) 4903 break; 4904 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0], 4905 &data->acs_selected_channels); 4906 #endif /* CONFIG_ACS */ 4907 #endif /* CONFIG_AP */ 4908 break; 4909 case EVENT_P2P_LO_STOP: 4910 #ifdef CONFIG_P2P 4911 wpa_s->p2p_lo_started = 0; 4912 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP 4913 P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d", 4914 data->p2p_lo_stop.reason_code); 4915 #endif /* CONFIG_P2P */ 4916 break; 4917 case EVENT_BEACON_LOSS: 4918 if (!wpa_s->current_bss || !wpa_s->current_ssid) 4919 break; 4920 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_BEACON_LOSS); 4921 bgscan_notify_beacon_loss(wpa_s); 4922 break; 4923 case EVENT_EXTERNAL_AUTH: 4924 #ifdef CONFIG_SAE 4925 if (!wpa_s->current_ssid) { 4926 wpa_printf(MSG_DEBUG, "SAE: current_ssid is NULL"); 4927 break; 4928 } 4929 sme_external_auth_trigger(wpa_s, data); 4930 #endif /* CONFIG_SAE */ 4931 break; 4932 case EVENT_PORT_AUTHORIZED: 4933 wpa_supplicant_event_port_authorized(wpa_s); 4934 break; 4935 case EVENT_STATION_OPMODE_CHANGED: 4936 #ifdef CONFIG_AP 4937 if (!wpa_s->ap_iface || !data) 4938 break; 4939 4940 hostapd_event_sta_opmode_changed(wpa_s->ap_iface->bss[0], 4941 data->sta_opmode.addr, 4942 data->sta_opmode.smps_mode, 4943 data->sta_opmode.chan_width, 4944 data->sta_opmode.rx_nss); 4945 #endif /* CONFIG_AP */ 4946 break; 4947 default: 4948 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); 4949 break; 4950 } 4951 } 4952 4953 4954 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event, 4955 union wpa_event_data *data) 4956 { 4957 struct wpa_supplicant *wpa_s; 4958 4959 if (event != EVENT_INTERFACE_STATUS) 4960 return; 4961 4962 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname); 4963 if (wpa_s && wpa_s->driver->get_ifindex) { 4964 unsigned int ifindex; 4965 4966 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv); 4967 if (ifindex != data->interface_status.ifindex) { 4968 wpa_dbg(wpa_s, MSG_DEBUG, 4969 "interface status ifindex %d mismatch (%d)", 4970 ifindex, data->interface_status.ifindex); 4971 return; 4972 } 4973 } 4974 #ifdef CONFIG_MATCH_IFACE 4975 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) { 4976 struct wpa_interface *wpa_i; 4977 4978 wpa_i = wpa_supplicant_match_iface( 4979 ctx, data->interface_status.ifname); 4980 if (!wpa_i) 4981 return; 4982 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL); 4983 os_free(wpa_i); 4984 if (wpa_s) 4985 wpa_s->matched = 1; 4986 } 4987 #endif /* CONFIG_MATCH_IFACE */ 4988 4989 if (wpa_s) 4990 wpa_supplicant_event(wpa_s, event, data); 4991 } 4992