1 /* 2 * WPA Supplicant - Driver event processing 3 * Copyright (c) 2003-2017, Jouni Malinen <j (at) 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 "crypto/random.h" 32 #include "blacklist.h" 33 #include "wpas_glue.h" 34 #include "wps_supplicant.h" 35 #include "ibss_rsn.h" 36 #include "sme.h" 37 #include "gas_query.h" 38 #include "p2p_supplicant.h" 39 #include "bgscan.h" 40 #include "autoscan.h" 41 #include "ap.h" 42 #include "bss.h" 43 #include "scan.h" 44 #include "offchannel.h" 45 #include "interworking.h" 46 #include "mesh.h" 47 #include "mesh_mpm.h" 48 #include "wmm_ac.h" 49 50 51 #ifndef CONFIG_NO_SCAN_PROCESSING 52 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s, 53 int new_scan, int own_request); 54 #endif /* CONFIG_NO_SCAN_PROCESSING */ 55 56 57 static int wpas_temp_disabled(struct wpa_supplicant *wpa_s, 58 struct wpa_ssid *ssid) 59 { 60 struct os_reltime now; 61 62 if (ssid == NULL || ssid->disabled_until.sec == 0) 63 return 0; 64 65 os_get_reltime(&now); 66 if (ssid->disabled_until.sec > now.sec) 67 return ssid->disabled_until.sec - now.sec; 68 69 wpas_clear_temp_disabled(wpa_s, ssid, 0); 70 71 return 0; 72 } 73 74 75 #ifndef CONFIG_NO_SCAN_PROCESSING 76 /** 77 * wpas_reenabled_network_time - Time until first network is re-enabled 78 * @wpa_s: Pointer to wpa_supplicant data 79 * Returns: If all enabled networks are temporarily disabled, returns the time 80 * (in sec) until the first network is re-enabled. Otherwise returns 0. 81 * 82 * This function is used in case all enabled networks are temporarily disabled, 83 * in which case it returns the time (in sec) that the first network will be 84 * re-enabled. The function assumes that at least one network is enabled. 85 */ 86 static int wpas_reenabled_network_time(struct wpa_supplicant *wpa_s) 87 { 88 struct wpa_ssid *ssid; 89 int disabled_for, res = 0; 90 91 #ifdef CONFIG_INTERWORKING 92 if (wpa_s->conf->auto_interworking && wpa_s->conf->interworking && 93 wpa_s->conf->cred) 94 return 0; 95 #endif /* CONFIG_INTERWORKING */ 96 97 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 98 if (ssid->disabled) 99 continue; 100 101 disabled_for = wpas_temp_disabled(wpa_s, ssid); 102 if (!disabled_for) 103 return 0; 104 105 if (!res || disabled_for < res) 106 res = disabled_for; 107 } 108 109 return res; 110 } 111 #endif /* CONFIG_NO_SCAN_PROCESSING */ 112 113 114 void wpas_network_reenabled(void *eloop_ctx, void *timeout_ctx) 115 { 116 struct wpa_supplicant *wpa_s = eloop_ctx; 117 118 if (wpa_s->disconnected || wpa_s->wpa_state != WPA_SCANNING) 119 return; 120 121 wpa_dbg(wpa_s, MSG_DEBUG, 122 "Try to associate due to network getting re-enabled"); 123 if (wpa_supplicant_fast_associate(wpa_s) != 1) { 124 wpa_supplicant_cancel_sched_scan(wpa_s); 125 wpa_supplicant_req_scan(wpa_s, 0, 0); 126 } 127 } 128 129 130 static struct wpa_bss * wpa_supplicant_get_new_bss( 131 struct wpa_supplicant *wpa_s, const u8 *bssid) 132 { 133 struct wpa_bss *bss = NULL; 134 struct wpa_ssid *ssid = wpa_s->current_ssid; 135 136 if (ssid->ssid_len > 0) 137 bss = wpa_bss_get(wpa_s, bssid, ssid->ssid, ssid->ssid_len); 138 if (!bss) 139 bss = wpa_bss_get_bssid(wpa_s, bssid); 140 141 return bss; 142 } 143 144 145 static void wpa_supplicant_update_current_bss(struct wpa_supplicant *wpa_s) 146 { 147 struct wpa_bss *bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid); 148 149 if (!bss) { 150 wpa_supplicant_update_scan_results(wpa_s); 151 152 /* Get the BSS from the new scan results */ 153 bss = wpa_supplicant_get_new_bss(wpa_s, wpa_s->bssid); 154 } 155 156 if (bss) 157 wpa_s->current_bss = bss; 158 } 159 160 161 static int wpa_supplicant_select_config(struct wpa_supplicant *wpa_s) 162 { 163 struct wpa_ssid *ssid, *old_ssid; 164 u8 drv_ssid[SSID_MAX_LEN]; 165 size_t drv_ssid_len; 166 int res; 167 168 if (wpa_s->conf->ap_scan == 1 && wpa_s->current_ssid) { 169 wpa_supplicant_update_current_bss(wpa_s); 170 171 if (wpa_s->current_ssid->ssid_len == 0) 172 return 0; /* current profile still in use */ 173 res = wpa_drv_get_ssid(wpa_s, drv_ssid); 174 if (res < 0) { 175 wpa_msg(wpa_s, MSG_INFO, 176 "Failed to read SSID from driver"); 177 return 0; /* try to use current profile */ 178 } 179 drv_ssid_len = res; 180 181 if (drv_ssid_len == wpa_s->current_ssid->ssid_len && 182 os_memcmp(drv_ssid, wpa_s->current_ssid->ssid, 183 drv_ssid_len) == 0) 184 return 0; /* current profile still in use */ 185 186 wpa_msg(wpa_s, MSG_DEBUG, 187 "Driver-initiated BSS selection changed the SSID to %s", 188 wpa_ssid_txt(drv_ssid, drv_ssid_len)); 189 /* continue selecting a new network profile */ 190 } 191 192 wpa_dbg(wpa_s, MSG_DEBUG, "Select network based on association " 193 "information"); 194 ssid = wpa_supplicant_get_ssid(wpa_s); 195 if (ssid == NULL) { 196 wpa_msg(wpa_s, MSG_INFO, 197 "No network configuration found for the current AP"); 198 return -1; 199 } 200 201 if (wpas_network_disabled(wpa_s, ssid)) { 202 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is disabled"); 203 return -1; 204 } 205 206 if (disallowed_bssid(wpa_s, wpa_s->bssid) || 207 disallowed_ssid(wpa_s, ssid->ssid, ssid->ssid_len)) { 208 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS is disallowed"); 209 return -1; 210 } 211 212 res = wpas_temp_disabled(wpa_s, ssid); 213 if (res > 0) { 214 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is temporarily " 215 "disabled for %d second(s)", res); 216 return -1; 217 } 218 219 wpa_dbg(wpa_s, MSG_DEBUG, "Network configuration found for the " 220 "current AP"); 221 if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) { 222 u8 wpa_ie[80]; 223 size_t wpa_ie_len = sizeof(wpa_ie); 224 if (wpa_supplicant_set_suites(wpa_s, NULL, ssid, 225 wpa_ie, &wpa_ie_len) < 0) 226 wpa_dbg(wpa_s, MSG_DEBUG, "Could not set WPA suites"); 227 } else { 228 wpa_supplicant_set_non_wpa_policy(wpa_s, ssid); 229 } 230 231 if (wpa_s->current_ssid && wpa_s->current_ssid != ssid) 232 eapol_sm_invalidate_cached_session(wpa_s->eapol); 233 old_ssid = wpa_s->current_ssid; 234 wpa_s->current_ssid = ssid; 235 236 wpa_supplicant_update_current_bss(wpa_s); 237 238 wpa_supplicant_rsn_supp_set_config(wpa_s, wpa_s->current_ssid); 239 wpa_supplicant_initiate_eapol(wpa_s); 240 if (old_ssid != wpa_s->current_ssid) 241 wpas_notify_network_changed(wpa_s); 242 243 return 0; 244 } 245 246 247 void wpa_supplicant_stop_countermeasures(void *eloop_ctx, void *sock_ctx) 248 { 249 struct wpa_supplicant *wpa_s = eloop_ctx; 250 251 if (wpa_s->countermeasures) { 252 wpa_s->countermeasures = 0; 253 wpa_drv_set_countermeasures(wpa_s, 0); 254 wpa_msg(wpa_s, MSG_INFO, "WPA: TKIP countermeasures stopped"); 255 256 /* 257 * It is possible that the device is sched scanning, which means 258 * that a connection attempt will be done only when we receive 259 * scan results. However, in this case, it would be preferable 260 * to scan and connect immediately, so cancel the sched_scan and 261 * issue a regular scan flow. 262 */ 263 wpa_supplicant_cancel_sched_scan(wpa_s); 264 wpa_supplicant_req_scan(wpa_s, 0, 0); 265 } 266 } 267 268 269 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s) 270 { 271 int bssid_changed; 272 273 wnm_bss_keep_alive_deinit(wpa_s); 274 275 #ifdef CONFIG_IBSS_RSN 276 ibss_rsn_deinit(wpa_s->ibss_rsn); 277 wpa_s->ibss_rsn = NULL; 278 #endif /* CONFIG_IBSS_RSN */ 279 280 #ifdef CONFIG_AP 281 wpa_supplicant_ap_deinit(wpa_s); 282 #endif /* CONFIG_AP */ 283 284 #ifdef CONFIG_HS20 285 /* Clear possibly configured frame filters */ 286 wpa_drv_configure_frame_filters(wpa_s, 0); 287 #endif /* CONFIG_HS20 */ 288 289 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 290 return; 291 292 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 293 bssid_changed = !is_zero_ether_addr(wpa_s->bssid); 294 os_memset(wpa_s->bssid, 0, ETH_ALEN); 295 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 296 sme_clear_on_disassoc(wpa_s); 297 wpa_s->current_bss = NULL; 298 wpa_s->assoc_freq = 0; 299 300 if (bssid_changed) 301 wpas_notify_bssid_changed(wpa_s); 302 303 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 304 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 305 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 306 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 307 wpa_s->ap_ies_from_associnfo = 0; 308 wpa_s->current_ssid = NULL; 309 eapol_sm_notify_config(wpa_s->eapol, NULL, NULL); 310 wpa_s->key_mgmt = 0; 311 312 wpas_rrm_reset(wpa_s); 313 wpa_s->wnmsleep_used = 0; 314 } 315 316 317 static void wpa_find_assoc_pmkid(struct wpa_supplicant *wpa_s) 318 { 319 struct wpa_ie_data ie; 320 int pmksa_set = -1; 321 size_t i; 322 323 if (wpa_sm_parse_own_wpa_ie(wpa_s->wpa, &ie) < 0 || 324 ie.pmkid == NULL) 325 return; 326 327 for (i = 0; i < ie.num_pmkid; i++) { 328 pmksa_set = pmksa_cache_set_current(wpa_s->wpa, 329 ie.pmkid + i * PMKID_LEN, 330 NULL, NULL, 0); 331 if (pmksa_set == 0) { 332 eapol_sm_notify_pmkid_attempt(wpa_s->eapol); 333 break; 334 } 335 } 336 337 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID from assoc IE %sfound from " 338 "PMKSA cache", pmksa_set == 0 ? "" : "not "); 339 } 340 341 342 static void wpa_supplicant_event_pmkid_candidate(struct wpa_supplicant *wpa_s, 343 union wpa_event_data *data) 344 { 345 if (data == NULL) { 346 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: No data in PMKID candidate " 347 "event"); 348 return; 349 } 350 wpa_dbg(wpa_s, MSG_DEBUG, "RSN: PMKID candidate event - bssid=" MACSTR 351 " index=%d preauth=%d", 352 MAC2STR(data->pmkid_candidate.bssid), 353 data->pmkid_candidate.index, 354 data->pmkid_candidate.preauth); 355 356 pmksa_candidate_add(wpa_s->wpa, data->pmkid_candidate.bssid, 357 data->pmkid_candidate.index, 358 data->pmkid_candidate.preauth); 359 } 360 361 362 static int wpa_supplicant_dynamic_keys(struct wpa_supplicant *wpa_s) 363 { 364 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 365 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) 366 return 0; 367 368 #ifdef IEEE8021X_EAPOL 369 if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA && 370 wpa_s->current_ssid && 371 !(wpa_s->current_ssid->eapol_flags & 372 (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 373 EAPOL_FLAG_REQUIRE_KEY_BROADCAST))) { 374 /* IEEE 802.1X, but not using dynamic WEP keys (i.e., either 375 * plaintext or static WEP keys). */ 376 return 0; 377 } 378 #endif /* IEEE8021X_EAPOL */ 379 380 return 1; 381 } 382 383 384 /** 385 * wpa_supplicant_scard_init - Initialize SIM/USIM access with PC/SC 386 * @wpa_s: pointer to wpa_supplicant data 387 * @ssid: Configuration data for the network 388 * Returns: 0 on success, -1 on failure 389 * 390 * This function is called when starting authentication with a network that is 391 * configured to use PC/SC for SIM/USIM access (EAP-SIM or EAP-AKA). 392 */ 393 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s, 394 struct wpa_ssid *ssid) 395 { 396 #ifdef IEEE8021X_EAPOL 397 #ifdef PCSC_FUNCS 398 int aka = 0, sim = 0; 399 400 if ((ssid != NULL && ssid->eap.pcsc == NULL) || 401 wpa_s->scard != NULL || wpa_s->conf->external_sim) 402 return 0; 403 404 if (ssid == NULL || ssid->eap.eap_methods == NULL) { 405 sim = 1; 406 aka = 1; 407 } else { 408 struct eap_method_type *eap = ssid->eap.eap_methods; 409 while (eap->vendor != EAP_VENDOR_IETF || 410 eap->method != EAP_TYPE_NONE) { 411 if (eap->vendor == EAP_VENDOR_IETF) { 412 if (eap->method == EAP_TYPE_SIM) 413 sim = 1; 414 else if (eap->method == EAP_TYPE_AKA || 415 eap->method == EAP_TYPE_AKA_PRIME) 416 aka = 1; 417 } 418 eap++; 419 } 420 } 421 422 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_SIM) == NULL) 423 sim = 0; 424 if (eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA) == NULL && 425 eap_peer_get_eap_method(EAP_VENDOR_IETF, EAP_TYPE_AKA_PRIME) == 426 NULL) 427 aka = 0; 428 429 if (!sim && !aka) { 430 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to " 431 "use SIM, but neither EAP-SIM nor EAP-AKA are " 432 "enabled"); 433 return 0; 434 } 435 436 wpa_dbg(wpa_s, MSG_DEBUG, "Selected network is configured to use SIM " 437 "(sim=%d aka=%d) - initialize PCSC", sim, aka); 438 439 wpa_s->scard = scard_init(wpa_s->conf->pcsc_reader); 440 if (wpa_s->scard == NULL) { 441 wpa_msg(wpa_s, MSG_WARNING, "Failed to initialize SIM " 442 "(pcsc-lite)"); 443 return -1; 444 } 445 wpa_sm_set_scard_ctx(wpa_s->wpa, wpa_s->scard); 446 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); 447 #endif /* PCSC_FUNCS */ 448 #endif /* IEEE8021X_EAPOL */ 449 450 return 0; 451 } 452 453 454 #ifndef CONFIG_NO_SCAN_PROCESSING 455 456 static int has_wep_key(struct wpa_ssid *ssid) 457 { 458 int i; 459 460 for (i = 0; i < NUM_WEP_KEYS; i++) { 461 if (ssid->wep_key_len[i]) 462 return 1; 463 } 464 465 return 0; 466 } 467 468 469 static int wpa_supplicant_match_privacy(struct wpa_bss *bss, 470 struct wpa_ssid *ssid) 471 { 472 int privacy = 0; 473 474 if (ssid->mixed_cell) 475 return 1; 476 477 #ifdef CONFIG_WPS 478 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) 479 return 1; 480 #endif /* CONFIG_WPS */ 481 482 if (has_wep_key(ssid)) 483 privacy = 1; 484 485 #ifdef IEEE8021X_EAPOL 486 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 487 ssid->eapol_flags & (EAPOL_FLAG_REQUIRE_KEY_UNICAST | 488 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)) 489 privacy = 1; 490 #endif /* IEEE8021X_EAPOL */ 491 492 if (wpa_key_mgmt_wpa(ssid->key_mgmt)) 493 privacy = 1; 494 495 if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) 496 privacy = 1; 497 498 if (bss->caps & IEEE80211_CAP_PRIVACY) 499 return privacy; 500 return !privacy; 501 } 502 503 504 static int wpa_supplicant_ssid_bss_match(struct wpa_supplicant *wpa_s, 505 struct wpa_ssid *ssid, 506 struct wpa_bss *bss, int debug_print) 507 { 508 struct wpa_ie_data ie; 509 int proto_match = 0; 510 const u8 *rsn_ie, *wpa_ie; 511 int ret; 512 int wep_ok; 513 514 ret = wpas_wps_ssid_bss_match(wpa_s, ssid, bss); 515 if (ret >= 0) 516 return ret; 517 518 /* Allow TSN if local configuration accepts WEP use without WPA/WPA2 */ 519 wep_ok = !wpa_key_mgmt_wpa(ssid->key_mgmt) && 520 (((ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 521 ssid->wep_key_len[ssid->wep_tx_keyidx] > 0) || 522 (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)); 523 524 rsn_ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 525 while ((ssid->proto & WPA_PROTO_RSN) && rsn_ie) { 526 proto_match++; 527 528 if (wpa_parse_wpa_ie(rsn_ie, 2 + rsn_ie[1], &ie)) { 529 if (debug_print) 530 wpa_dbg(wpa_s, MSG_DEBUG, 531 " skip RSN IE - parse failed"); 532 break; 533 } 534 535 if (wep_ok && 536 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 537 { 538 if (debug_print) 539 wpa_dbg(wpa_s, MSG_DEBUG, 540 " selected based on TSN in RSN IE"); 541 return 1; 542 } 543 544 if (!(ie.proto & ssid->proto)) { 545 if (debug_print) 546 wpa_dbg(wpa_s, MSG_DEBUG, 547 " skip RSN IE - proto mismatch"); 548 break; 549 } 550 551 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 552 if (debug_print) 553 wpa_dbg(wpa_s, MSG_DEBUG, 554 " skip RSN IE - PTK cipher mismatch"); 555 break; 556 } 557 558 if (!(ie.group_cipher & ssid->group_cipher)) { 559 if (debug_print) 560 wpa_dbg(wpa_s, MSG_DEBUG, 561 " skip RSN IE - GTK cipher mismatch"); 562 break; 563 } 564 565 if (!(ie.key_mgmt & ssid->key_mgmt)) { 566 if (debug_print) 567 wpa_dbg(wpa_s, MSG_DEBUG, 568 " skip RSN IE - key mgmt mismatch"); 569 break; 570 } 571 572 #ifdef CONFIG_IEEE80211W 573 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 574 wpas_get_ssid_pmf(wpa_s, ssid) == 575 MGMT_FRAME_PROTECTION_REQUIRED) { 576 if (debug_print) 577 wpa_dbg(wpa_s, MSG_DEBUG, 578 " skip RSN IE - no mgmt frame protection"); 579 break; 580 } 581 #endif /* CONFIG_IEEE80211W */ 582 if ((ie.capabilities & WPA_CAPABILITY_MFPR) && 583 wpas_get_ssid_pmf(wpa_s, ssid) == 584 NO_MGMT_FRAME_PROTECTION) { 585 if (debug_print) 586 wpa_dbg(wpa_s, MSG_DEBUG, 587 " skip RSN IE - no mgmt frame protection enabled but AP requires it"); 588 break; 589 } 590 #ifdef CONFIG_MBO 591 if (!(ie.capabilities & WPA_CAPABILITY_MFPC) && 592 wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND) && 593 wpas_get_ssid_pmf(wpa_s, ssid) != 594 NO_MGMT_FRAME_PROTECTION) { 595 if (debug_print) 596 wpa_dbg(wpa_s, MSG_DEBUG, 597 " skip RSN IE - no mgmt frame protection enabled on MBO AP"); 598 break; 599 } 600 #endif /* CONFIG_MBO */ 601 602 if (debug_print) 603 wpa_dbg(wpa_s, MSG_DEBUG, 604 " selected based on RSN IE"); 605 return 1; 606 } 607 608 #ifdef CONFIG_IEEE80211W 609 if (wpas_get_ssid_pmf(wpa_s, ssid) == MGMT_FRAME_PROTECTION_REQUIRED) { 610 if (debug_print) 611 wpa_dbg(wpa_s, MSG_DEBUG, 612 " skip - MFP Required but network not MFP Capable"); 613 return 0; 614 } 615 #endif /* CONFIG_IEEE80211W */ 616 617 wpa_ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 618 while ((ssid->proto & WPA_PROTO_WPA) && wpa_ie) { 619 proto_match++; 620 621 if (wpa_parse_wpa_ie(wpa_ie, 2 + wpa_ie[1], &ie)) { 622 if (debug_print) 623 wpa_dbg(wpa_s, MSG_DEBUG, 624 " skip WPA IE - parse failed"); 625 break; 626 } 627 628 if (wep_ok && 629 (ie.group_cipher & (WPA_CIPHER_WEP40 | WPA_CIPHER_WEP104))) 630 { 631 if (debug_print) 632 wpa_dbg(wpa_s, MSG_DEBUG, 633 " selected based on TSN in WPA IE"); 634 return 1; 635 } 636 637 if (!(ie.proto & ssid->proto)) { 638 if (debug_print) 639 wpa_dbg(wpa_s, MSG_DEBUG, 640 " skip WPA IE - proto mismatch"); 641 break; 642 } 643 644 if (!(ie.pairwise_cipher & ssid->pairwise_cipher)) { 645 if (debug_print) 646 wpa_dbg(wpa_s, MSG_DEBUG, 647 " skip WPA IE - PTK cipher mismatch"); 648 break; 649 } 650 651 if (!(ie.group_cipher & ssid->group_cipher)) { 652 if (debug_print) 653 wpa_dbg(wpa_s, MSG_DEBUG, 654 " skip WPA IE - GTK cipher mismatch"); 655 break; 656 } 657 658 if (!(ie.key_mgmt & ssid->key_mgmt)) { 659 if (debug_print) 660 wpa_dbg(wpa_s, MSG_DEBUG, 661 " skip WPA IE - key mgmt mismatch"); 662 break; 663 } 664 665 if (debug_print) 666 wpa_dbg(wpa_s, MSG_DEBUG, 667 " selected based on WPA IE"); 668 return 1; 669 } 670 671 if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) && !wpa_ie && 672 !rsn_ie) { 673 if (debug_print) 674 wpa_dbg(wpa_s, MSG_DEBUG, 675 " allow for non-WPA IEEE 802.1X"); 676 return 1; 677 } 678 679 if ((ssid->proto & (WPA_PROTO_WPA | WPA_PROTO_RSN)) && 680 wpa_key_mgmt_wpa(ssid->key_mgmt) && proto_match == 0) { 681 if (debug_print) 682 wpa_dbg(wpa_s, MSG_DEBUG, 683 " skip - no WPA/RSN proto match"); 684 return 0; 685 } 686 687 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && 688 wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE)) { 689 if (debug_print) 690 wpa_dbg(wpa_s, MSG_DEBUG, " allow in OSEN"); 691 return 1; 692 } 693 694 if (!wpa_key_mgmt_wpa(ssid->key_mgmt)) { 695 if (debug_print) 696 wpa_dbg(wpa_s, MSG_DEBUG, " allow in non-WPA/WPA2"); 697 return 1; 698 } 699 700 if (debug_print) 701 wpa_dbg(wpa_s, MSG_DEBUG, 702 " reject due to mismatch with WPA/WPA2"); 703 704 return 0; 705 } 706 707 708 static int freq_allowed(int *freqs, int freq) 709 { 710 int i; 711 712 if (freqs == NULL) 713 return 1; 714 715 for (i = 0; freqs[i]; i++) 716 if (freqs[i] == freq) 717 return 1; 718 return 0; 719 } 720 721 722 static int rate_match(struct wpa_supplicant *wpa_s, struct wpa_bss *bss, 723 int debug_print) 724 { 725 const struct hostapd_hw_modes *mode = NULL, *modes; 726 const u8 scan_ie[2] = { WLAN_EID_SUPP_RATES, WLAN_EID_EXT_SUPP_RATES }; 727 const u8 *rate_ie; 728 int i, j, k; 729 730 if (bss->freq == 0) 731 return 1; /* Cannot do matching without knowing band */ 732 733 modes = wpa_s->hw.modes; 734 if (modes == NULL) { 735 /* 736 * The driver does not provide any additional information 737 * about the utilized hardware, so allow the connection attempt 738 * to continue. 739 */ 740 return 1; 741 } 742 743 for (i = 0; i < wpa_s->hw.num_modes; i++) { 744 for (j = 0; j < modes[i].num_channels; j++) { 745 int freq = modes[i].channels[j].freq; 746 if (freq == bss->freq) { 747 if (mode && 748 mode->mode == HOSTAPD_MODE_IEEE80211G) 749 break; /* do not allow 802.11b replace 750 * 802.11g */ 751 mode = &modes[i]; 752 break; 753 } 754 } 755 } 756 757 if (mode == NULL) 758 return 0; 759 760 for (i = 0; i < (int) sizeof(scan_ie); i++) { 761 rate_ie = wpa_bss_get_ie(bss, scan_ie[i]); 762 if (rate_ie == NULL) 763 continue; 764 765 for (j = 2; j < rate_ie[1] + 2; j++) { 766 int flagged = !!(rate_ie[j] & 0x80); 767 int r = (rate_ie[j] & 0x7f) * 5; 768 769 /* 770 * IEEE Std 802.11n-2009 7.3.2.2: 771 * The new BSS Membership selector value is encoded 772 * like a legacy basic rate, but it is not a rate and 773 * only indicates if the BSS members are required to 774 * support the mandatory features of Clause 20 [HT PHY] 775 * in order to join the BSS. 776 */ 777 if (flagged && ((rate_ie[j] & 0x7f) == 778 BSS_MEMBERSHIP_SELECTOR_HT_PHY)) { 779 if (!ht_supported(mode)) { 780 if (debug_print) 781 wpa_dbg(wpa_s, MSG_DEBUG, 782 " hardware does not support HT PHY"); 783 return 0; 784 } 785 continue; 786 } 787 788 /* There's also a VHT selector for 802.11ac */ 789 if (flagged && ((rate_ie[j] & 0x7f) == 790 BSS_MEMBERSHIP_SELECTOR_VHT_PHY)) { 791 if (!vht_supported(mode)) { 792 if (debug_print) 793 wpa_dbg(wpa_s, MSG_DEBUG, 794 " hardware does not support VHT PHY"); 795 return 0; 796 } 797 continue; 798 } 799 800 if (!flagged) 801 continue; 802 803 /* check for legacy basic rates */ 804 for (k = 0; k < mode->num_rates; k++) { 805 if (mode->rates[k] == r) 806 break; 807 } 808 if (k == mode->num_rates) { 809 /* 810 * IEEE Std 802.11-2007 7.3.2.2 demands that in 811 * order to join a BSS all required rates 812 * have to be supported by the hardware. 813 */ 814 if (debug_print) 815 wpa_dbg(wpa_s, MSG_DEBUG, 816 " hardware does not support required rate %d.%d Mbps (freq=%d mode==%d num_rates=%d)", 817 r / 10, r % 10, 818 bss->freq, mode->mode, mode->num_rates); 819 return 0; 820 } 821 } 822 } 823 824 return 1; 825 } 826 827 828 /* 829 * Test whether BSS is in an ESS. 830 * This is done differently in DMG (60 GHz) and non-DMG bands 831 */ 832 static int bss_is_ess(struct wpa_bss *bss) 833 { 834 if (bss_is_dmg(bss)) { 835 return (bss->caps & IEEE80211_CAP_DMG_MASK) == 836 IEEE80211_CAP_DMG_AP; 837 } 838 839 return ((bss->caps & (IEEE80211_CAP_ESS | IEEE80211_CAP_IBSS)) == 840 IEEE80211_CAP_ESS); 841 } 842 843 844 static int match_mac_mask(const u8 *addr_a, const u8 *addr_b, const u8 *mask) 845 { 846 size_t i; 847 848 for (i = 0; i < ETH_ALEN; i++) { 849 if ((addr_a[i] & mask[i]) != (addr_b[i] & mask[i])) 850 return 0; 851 } 852 return 1; 853 } 854 855 856 static int addr_in_list(const u8 *addr, const u8 *list, size_t num) 857 { 858 size_t i; 859 860 for (i = 0; i < num; i++) { 861 const u8 *a = list + i * ETH_ALEN * 2; 862 const u8 *m = a + ETH_ALEN; 863 864 if (match_mac_mask(a, addr, m)) 865 return 1; 866 } 867 return 0; 868 } 869 870 871 struct wpa_ssid * wpa_scan_res_match(struct wpa_supplicant *wpa_s, 872 int i, struct wpa_bss *bss, 873 struct wpa_ssid *group, 874 int only_first_ssid, int debug_print) 875 { 876 u8 wpa_ie_len, rsn_ie_len; 877 int wpa; 878 struct wpa_blacklist *e; 879 const u8 *ie; 880 struct wpa_ssid *ssid; 881 int osen; 882 #ifdef CONFIG_MBO 883 const u8 *assoc_disallow; 884 #endif /* CONFIG_MBO */ 885 886 ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 887 wpa_ie_len = ie ? ie[1] : 0; 888 889 ie = wpa_bss_get_ie(bss, WLAN_EID_RSN); 890 rsn_ie_len = ie ? ie[1] : 0; 891 892 ie = wpa_bss_get_vendor_ie(bss, OSEN_IE_VENDOR_TYPE); 893 osen = ie != NULL; 894 895 if (debug_print) { 896 wpa_dbg(wpa_s, MSG_DEBUG, "%d: " MACSTR 897 " ssid='%s' wpa_ie_len=%u rsn_ie_len=%u caps=0x%x level=%d freq=%d %s%s%s", 898 i, MAC2STR(bss->bssid), 899 wpa_ssid_txt(bss->ssid, bss->ssid_len), 900 wpa_ie_len, rsn_ie_len, bss->caps, bss->level, 901 bss->freq, 902 wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE) ? 903 " wps" : "", 904 (wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) || 905 wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) 906 ? " p2p" : "", 907 osen ? " osen=1" : ""); 908 } 909 910 e = wpa_blacklist_get(wpa_s, bss->bssid); 911 if (e) { 912 int limit = 1; 913 if (wpa_supplicant_enabled_networks(wpa_s) == 1) { 914 /* 915 * When only a single network is enabled, we can 916 * trigger blacklisting on the first failure. This 917 * should not be done with multiple enabled networks to 918 * avoid getting forced to move into a worse ESS on 919 * single error if there are no other BSSes of the 920 * current ESS. 921 */ 922 limit = 0; 923 } 924 if (e->count > limit) { 925 if (debug_print) { 926 wpa_dbg(wpa_s, MSG_DEBUG, 927 " skip - blacklisted (count=%d limit=%d)", 928 e->count, limit); 929 } 930 return NULL; 931 } 932 } 933 934 if (bss->ssid_len == 0) { 935 if (debug_print) 936 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID not known"); 937 return NULL; 938 } 939 940 if (disallowed_bssid(wpa_s, bss->bssid)) { 941 if (debug_print) 942 wpa_dbg(wpa_s, MSG_DEBUG, " skip - BSSID disallowed"); 943 return NULL; 944 } 945 946 if (disallowed_ssid(wpa_s, bss->ssid, bss->ssid_len)) { 947 if (debug_print) 948 wpa_dbg(wpa_s, MSG_DEBUG, " skip - SSID disallowed"); 949 return NULL; 950 } 951 952 wpa = wpa_ie_len > 0 || rsn_ie_len > 0; 953 954 for (ssid = group; ssid; ssid = only_first_ssid ? NULL : ssid->pnext) { 955 int check_ssid = wpa ? 1 : (ssid->ssid_len != 0); 956 int res; 957 958 if (wpas_network_disabled(wpa_s, ssid)) { 959 if (debug_print) 960 wpa_dbg(wpa_s, MSG_DEBUG, " skip - disabled"); 961 continue; 962 } 963 964 res = wpas_temp_disabled(wpa_s, ssid); 965 if (res > 0) { 966 if (debug_print) 967 wpa_dbg(wpa_s, MSG_DEBUG, 968 " skip - disabled temporarily for %d second(s)", 969 res); 970 continue; 971 } 972 973 #ifdef CONFIG_WPS 974 if ((ssid->key_mgmt & WPA_KEY_MGMT_WPS) && e && e->count > 0) { 975 if (debug_print) 976 wpa_dbg(wpa_s, MSG_DEBUG, 977 " skip - blacklisted (WPS)"); 978 continue; 979 } 980 981 if (wpa && ssid->ssid_len == 0 && 982 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 983 check_ssid = 0; 984 985 if (!wpa && (ssid->key_mgmt & WPA_KEY_MGMT_WPS)) { 986 /* Only allow wildcard SSID match if an AP 987 * advertises active WPS operation that matches 988 * with our mode. */ 989 check_ssid = 1; 990 if (ssid->ssid_len == 0 && 991 wpas_wps_ssid_wildcard_ok(wpa_s, ssid, bss)) 992 check_ssid = 0; 993 } 994 #endif /* CONFIG_WPS */ 995 996 if (ssid->bssid_set && ssid->ssid_len == 0 && 997 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) == 0) 998 check_ssid = 0; 999 1000 if (check_ssid && 1001 (bss->ssid_len != ssid->ssid_len || 1002 os_memcmp(bss->ssid, ssid->ssid, bss->ssid_len) != 0)) { 1003 if (debug_print) 1004 wpa_dbg(wpa_s, MSG_DEBUG, 1005 " skip - SSID mismatch"); 1006 continue; 1007 } 1008 1009 if (ssid->bssid_set && 1010 os_memcmp(bss->bssid, ssid->bssid, ETH_ALEN) != 0) { 1011 if (debug_print) 1012 wpa_dbg(wpa_s, MSG_DEBUG, 1013 " skip - BSSID mismatch"); 1014 continue; 1015 } 1016 1017 /* check blacklist */ 1018 if (ssid->num_bssid_blacklist && 1019 addr_in_list(bss->bssid, ssid->bssid_blacklist, 1020 ssid->num_bssid_blacklist)) { 1021 if (debug_print) 1022 wpa_dbg(wpa_s, MSG_DEBUG, 1023 " skip - BSSID blacklisted"); 1024 continue; 1025 } 1026 1027 /* if there is a whitelist, only accept those APs */ 1028 if (ssid->num_bssid_whitelist && 1029 !addr_in_list(bss->bssid, ssid->bssid_whitelist, 1030 ssid->num_bssid_whitelist)) { 1031 if (debug_print) 1032 wpa_dbg(wpa_s, MSG_DEBUG, 1033 " skip - BSSID not in whitelist"); 1034 continue; 1035 } 1036 1037 if (!wpa_supplicant_ssid_bss_match(wpa_s, ssid, bss, 1038 debug_print)) 1039 continue; 1040 1041 if (!osen && !wpa && 1042 !(ssid->key_mgmt & WPA_KEY_MGMT_NONE) && 1043 !(ssid->key_mgmt & WPA_KEY_MGMT_WPS) && 1044 !(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) { 1045 if (debug_print) 1046 wpa_dbg(wpa_s, MSG_DEBUG, 1047 " skip - non-WPA network not allowed"); 1048 continue; 1049 } 1050 1051 if (wpa && !wpa_key_mgmt_wpa(ssid->key_mgmt) && 1052 has_wep_key(ssid)) { 1053 if (debug_print) 1054 wpa_dbg(wpa_s, MSG_DEBUG, 1055 " skip - ignore WPA/WPA2 AP for WEP network block"); 1056 continue; 1057 } 1058 1059 if ((ssid->key_mgmt & WPA_KEY_MGMT_OSEN) && !osen) { 1060 if (debug_print) 1061 wpa_dbg(wpa_s, MSG_DEBUG, 1062 " skip - non-OSEN network not allowed"); 1063 continue; 1064 } 1065 1066 if (!wpa_supplicant_match_privacy(bss, ssid)) { 1067 if (debug_print) 1068 wpa_dbg(wpa_s, MSG_DEBUG, 1069 " skip - privacy mismatch"); 1070 continue; 1071 } 1072 1073 if (ssid->mode != IEEE80211_MODE_MESH && !bss_is_ess(bss) && 1074 !bss_is_pbss(bss)) { 1075 if (debug_print) 1076 wpa_dbg(wpa_s, MSG_DEBUG, 1077 " skip - not ESS, PBSS, or MBSS"); 1078 continue; 1079 } 1080 1081 if (ssid->pbss != 2 && ssid->pbss != bss_is_pbss(bss)) { 1082 if (debug_print) 1083 wpa_dbg(wpa_s, MSG_DEBUG, 1084 " skip - PBSS mismatch (ssid %d bss %d)", 1085 ssid->pbss, bss_is_pbss(bss)); 1086 continue; 1087 } 1088 1089 if (!freq_allowed(ssid->freq_list, bss->freq)) { 1090 if (debug_print) 1091 wpa_dbg(wpa_s, MSG_DEBUG, 1092 " skip - frequency not allowed"); 1093 continue; 1094 } 1095 1096 #ifdef CONFIG_MESH 1097 if (ssid->mode == IEEE80211_MODE_MESH && ssid->frequency > 0 && 1098 ssid->frequency != bss->freq) { 1099 if (debug_print) 1100 wpa_dbg(wpa_s, MSG_DEBUG, 1101 " skip - frequency not allowed (mesh)"); 1102 continue; 1103 } 1104 #endif /* CONFIG_MESH */ 1105 1106 if (!rate_match(wpa_s, bss, debug_print)) { 1107 if (debug_print) 1108 wpa_dbg(wpa_s, MSG_DEBUG, 1109 " skip - rate sets do not match"); 1110 continue; 1111 } 1112 1113 #ifndef CONFIG_IBSS_RSN 1114 if (ssid->mode == WPAS_MODE_IBSS && 1115 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE | 1116 WPA_KEY_MGMT_WPA_NONE))) { 1117 if (debug_print) 1118 wpa_dbg(wpa_s, MSG_DEBUG, 1119 " skip - IBSS RSN not supported in the build"); 1120 continue; 1121 } 1122 #endif /* !CONFIG_IBSS_RSN */ 1123 1124 #ifdef CONFIG_P2P 1125 if (ssid->p2p_group && 1126 !wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE) && 1127 !wpa_bss_get_vendor_ie_beacon(bss, P2P_IE_VENDOR_TYPE)) { 1128 if (debug_print) 1129 wpa_dbg(wpa_s, MSG_DEBUG, 1130 " skip - no P2P IE seen"); 1131 continue; 1132 } 1133 1134 if (!is_zero_ether_addr(ssid->go_p2p_dev_addr)) { 1135 struct wpabuf *p2p_ie; 1136 u8 dev_addr[ETH_ALEN]; 1137 1138 ie = wpa_bss_get_vendor_ie(bss, P2P_IE_VENDOR_TYPE); 1139 if (ie == NULL) { 1140 if (debug_print) 1141 wpa_dbg(wpa_s, MSG_DEBUG, 1142 " skip - no P2P element"); 1143 continue; 1144 } 1145 p2p_ie = wpa_bss_get_vendor_ie_multi( 1146 bss, P2P_IE_VENDOR_TYPE); 1147 if (p2p_ie == NULL) { 1148 if (debug_print) 1149 wpa_dbg(wpa_s, MSG_DEBUG, 1150 " skip - could not fetch P2P element"); 1151 continue; 1152 } 1153 1154 if (p2p_parse_dev_addr_in_p2p_ie(p2p_ie, dev_addr) < 0 1155 || os_memcmp(dev_addr, ssid->go_p2p_dev_addr, 1156 ETH_ALEN) != 0) { 1157 if (debug_print) 1158 wpa_dbg(wpa_s, MSG_DEBUG, 1159 " skip - no matching GO P2P Device Address in P2P element"); 1160 wpabuf_free(p2p_ie); 1161 continue; 1162 } 1163 wpabuf_free(p2p_ie); 1164 } 1165 1166 /* 1167 * TODO: skip the AP if its P2P IE has Group Formation 1168 * bit set in the P2P Group Capability Bitmap and we 1169 * are not in Group Formation with that device. 1170 */ 1171 #endif /* CONFIG_P2P */ 1172 1173 if (os_reltime_before(&bss->last_update, &wpa_s->scan_min_time)) 1174 { 1175 struct os_reltime diff; 1176 1177 os_reltime_sub(&wpa_s->scan_min_time, 1178 &bss->last_update, &diff); 1179 if (debug_print) 1180 wpa_dbg(wpa_s, MSG_DEBUG, 1181 " skip - scan result not recent enough (%u.%06u seconds too old)", 1182 (unsigned int) diff.sec, 1183 (unsigned int) diff.usec); 1184 continue; 1185 } 1186 #ifdef CONFIG_MBO 1187 #ifdef CONFIG_TESTING_OPTIONS 1188 if (wpa_s->ignore_assoc_disallow) 1189 goto skip_assoc_disallow; 1190 #endif /* CONFIG_TESTING_OPTIONS */ 1191 assoc_disallow = wpas_mbo_get_bss_attr( 1192 bss, MBO_ATTR_ID_ASSOC_DISALLOW); 1193 if (assoc_disallow && assoc_disallow[1] >= 1) { 1194 if (debug_print) 1195 wpa_dbg(wpa_s, MSG_DEBUG, 1196 " skip - MBO association disallowed (reason %u)", 1197 assoc_disallow[2]); 1198 continue; 1199 } 1200 1201 if (wpa_is_bss_tmp_disallowed(wpa_s, bss->bssid)) { 1202 if (debug_print) 1203 wpa_dbg(wpa_s, MSG_DEBUG, 1204 " skip - MBO retry delay has not passed yet"); 1205 continue; 1206 } 1207 #ifdef CONFIG_TESTING_OPTIONS 1208 skip_assoc_disallow: 1209 #endif /* CONFIG_TESTING_OPTIONS */ 1210 #endif /* CONFIG_MBO */ 1211 1212 /* Matching configuration found */ 1213 return ssid; 1214 } 1215 1216 /* No matching configuration found */ 1217 return NULL; 1218 } 1219 1220 1221 static struct wpa_bss * 1222 wpa_supplicant_select_bss(struct wpa_supplicant *wpa_s, 1223 struct wpa_ssid *group, 1224 struct wpa_ssid **selected_ssid, 1225 int only_first_ssid) 1226 { 1227 unsigned int i; 1228 1229 if (wpa_s->current_ssid) { 1230 struct wpa_ssid *ssid; 1231 1232 wpa_dbg(wpa_s, MSG_DEBUG, 1233 "Scan results matching the currently selected network"); 1234 for (i = 0; i < wpa_s->last_scan_res_used; i++) { 1235 struct wpa_bss *bss = wpa_s->last_scan_res[i]; 1236 1237 ssid = wpa_scan_res_match(wpa_s, i, bss, group, 1238 only_first_ssid, 0); 1239 if (ssid != wpa_s->current_ssid) 1240 continue; 1241 wpa_dbg(wpa_s, MSG_DEBUG, "%u: " MACSTR 1242 " freq=%d level=%d snr=%d est_throughput=%u", 1243 i, MAC2STR(bss->bssid), bss->freq, bss->level, 1244 bss->snr, bss->est_throughput); 1245 } 1246 } 1247 1248 if (only_first_ssid) 1249 wpa_dbg(wpa_s, MSG_DEBUG, "Try to find BSS matching pre-selected network id=%d", 1250 group->id); 1251 else 1252 wpa_dbg(wpa_s, MSG_DEBUG, "Selecting BSS from priority group %d", 1253 group->priority); 1254 1255 for (i = 0; i < wpa_s->last_scan_res_used; i++) { 1256 struct wpa_bss *bss = wpa_s->last_scan_res[i]; 1257 *selected_ssid = wpa_scan_res_match(wpa_s, i, bss, group, 1258 only_first_ssid, 1); 1259 if (!*selected_ssid) 1260 continue; 1261 wpa_dbg(wpa_s, MSG_DEBUG, " selected BSS " MACSTR 1262 " ssid='%s'", 1263 MAC2STR(bss->bssid), 1264 wpa_ssid_txt(bss->ssid, bss->ssid_len)); 1265 return bss; 1266 } 1267 1268 return NULL; 1269 } 1270 1271 1272 struct wpa_bss * wpa_supplicant_pick_network(struct wpa_supplicant *wpa_s, 1273 struct wpa_ssid **selected_ssid) 1274 { 1275 struct wpa_bss *selected = NULL; 1276 int prio; 1277 struct wpa_ssid *next_ssid = NULL; 1278 struct wpa_ssid *ssid; 1279 1280 if (wpa_s->last_scan_res == NULL || 1281 wpa_s->last_scan_res_used == 0) 1282 return NULL; /* no scan results from last update */ 1283 1284 if (wpa_s->next_ssid) { 1285 /* check that next_ssid is still valid */ 1286 for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) { 1287 if (ssid == wpa_s->next_ssid) 1288 break; 1289 } 1290 next_ssid = ssid; 1291 wpa_s->next_ssid = NULL; 1292 } 1293 1294 while (selected == NULL) { 1295 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 1296 if (next_ssid && next_ssid->priority == 1297 wpa_s->conf->pssid[prio]->priority) { 1298 selected = wpa_supplicant_select_bss( 1299 wpa_s, next_ssid, selected_ssid, 1); 1300 if (selected) 1301 break; 1302 } 1303 selected = wpa_supplicant_select_bss( 1304 wpa_s, wpa_s->conf->pssid[prio], 1305 selected_ssid, 0); 1306 if (selected) 1307 break; 1308 } 1309 1310 if (selected == NULL && wpa_s->blacklist && 1311 !wpa_s->countermeasures) { 1312 wpa_dbg(wpa_s, MSG_DEBUG, "No APs found - clear " 1313 "blacklist and try again"); 1314 wpa_blacklist_clear(wpa_s); 1315 wpa_s->blacklist_cleared++; 1316 } else if (selected == NULL) 1317 break; 1318 } 1319 1320 ssid = *selected_ssid; 1321 if (selected && ssid && ssid->mem_only_psk && !ssid->psk_set && 1322 !ssid->passphrase && !ssid->ext_psk) { 1323 const char *field_name, *txt = NULL; 1324 1325 wpa_dbg(wpa_s, MSG_DEBUG, 1326 "PSK/passphrase not yet available for the selected network"); 1327 1328 wpas_notify_network_request(wpa_s, ssid, 1329 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL); 1330 1331 field_name = wpa_supplicant_ctrl_req_to_string( 1332 WPA_CTRL_REQ_PSK_PASSPHRASE, NULL, &txt); 1333 if (field_name == NULL) 1334 return NULL; 1335 1336 wpas_send_ctrl_req(wpa_s, ssid, field_name, txt); 1337 1338 selected = NULL; 1339 } 1340 1341 return selected; 1342 } 1343 1344 1345 static void wpa_supplicant_req_new_scan(struct wpa_supplicant *wpa_s, 1346 int timeout_sec, int timeout_usec) 1347 { 1348 if (!wpa_supplicant_enabled_networks(wpa_s)) { 1349 /* 1350 * No networks are enabled; short-circuit request so 1351 * we don't wait timeout seconds before transitioning 1352 * to INACTIVE state. 1353 */ 1354 wpa_dbg(wpa_s, MSG_DEBUG, "Short-circuit new scan request " 1355 "since there are no enabled networks"); 1356 wpa_supplicant_set_state(wpa_s, WPA_INACTIVE); 1357 return; 1358 } 1359 1360 wpa_s->scan_for_connection = 1; 1361 wpa_supplicant_req_scan(wpa_s, timeout_sec, timeout_usec); 1362 } 1363 1364 1365 int wpa_supplicant_connect(struct wpa_supplicant *wpa_s, 1366 struct wpa_bss *selected, 1367 struct wpa_ssid *ssid) 1368 { 1369 if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) { 1370 wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP 1371 "PBC session overlap"); 1372 wpas_notify_wps_event_pbc_overlap(wpa_s); 1373 #ifdef CONFIG_P2P 1374 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_CLIENT || 1375 wpa_s->p2p_in_provisioning) { 1376 eloop_register_timeout(0, 0, wpas_p2p_pbc_overlap_cb, 1377 wpa_s, NULL); 1378 return -1; 1379 } 1380 #endif /* CONFIG_P2P */ 1381 1382 #ifdef CONFIG_WPS 1383 wpas_wps_pbc_overlap(wpa_s); 1384 wpas_wps_cancel(wpa_s); 1385 #endif /* CONFIG_WPS */ 1386 return -1; 1387 } 1388 1389 wpa_msg(wpa_s, MSG_DEBUG, 1390 "Considering connect request: reassociate: %d selected: " 1391 MACSTR " bssid: " MACSTR " pending: " MACSTR 1392 " wpa_state: %s ssid=%p current_ssid=%p", 1393 wpa_s->reassociate, MAC2STR(selected->bssid), 1394 MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid), 1395 wpa_supplicant_state_txt(wpa_s->wpa_state), 1396 ssid, wpa_s->current_ssid); 1397 1398 /* 1399 * Do not trigger new association unless the BSSID has changed or if 1400 * reassociation is requested. If we are in process of associating with 1401 * the selected BSSID, do not trigger new attempt. 1402 */ 1403 if (wpa_s->reassociate || 1404 (os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 && 1405 ((wpa_s->wpa_state != WPA_ASSOCIATING && 1406 wpa_s->wpa_state != WPA_AUTHENTICATING) || 1407 (!is_zero_ether_addr(wpa_s->pending_bssid) && 1408 os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) != 1409 0) || 1410 (is_zero_ether_addr(wpa_s->pending_bssid) && 1411 ssid != wpa_s->current_ssid)))) { 1412 if (wpa_supplicant_scard_init(wpa_s, ssid)) { 1413 wpa_supplicant_req_new_scan(wpa_s, 10, 0); 1414 return 0; 1415 } 1416 wpa_msg(wpa_s, MSG_DEBUG, "Request association with " MACSTR, 1417 MAC2STR(selected->bssid)); 1418 wpa_supplicant_associate(wpa_s, selected, ssid); 1419 } else { 1420 wpa_dbg(wpa_s, MSG_DEBUG, "Already associated or trying to " 1421 "connect with the selected AP"); 1422 } 1423 1424 return 0; 1425 } 1426 1427 1428 static struct wpa_ssid * 1429 wpa_supplicant_pick_new_network(struct wpa_supplicant *wpa_s) 1430 { 1431 int prio; 1432 struct wpa_ssid *ssid; 1433 1434 for (prio = 0; prio < wpa_s->conf->num_prio; prio++) { 1435 for (ssid = wpa_s->conf->pssid[prio]; ssid; ssid = ssid->pnext) 1436 { 1437 if (wpas_network_disabled(wpa_s, ssid)) 1438 continue; 1439 #ifndef CONFIG_IBSS_RSN 1440 if (ssid->mode == WPAS_MODE_IBSS && 1441 !(ssid->key_mgmt & (WPA_KEY_MGMT_NONE | 1442 WPA_KEY_MGMT_WPA_NONE))) { 1443 wpa_msg(wpa_s, MSG_INFO, 1444 "IBSS RSN not supported in the build - cannot use the profile for SSID '%s'", 1445 wpa_ssid_txt(ssid->ssid, 1446 ssid->ssid_len)); 1447 continue; 1448 } 1449 #endif /* !CONFIG_IBSS_RSN */ 1450 if (ssid->mode == IEEE80211_MODE_IBSS || 1451 ssid->mode == IEEE80211_MODE_AP || 1452 ssid->mode == IEEE80211_MODE_MESH) 1453 return ssid; 1454 } 1455 } 1456 return NULL; 1457 } 1458 1459 1460 /* TODO: move the rsn_preauth_scan_result*() to be called from notify.c based 1461 * on BSS added and BSS changed events */ 1462 static void wpa_supplicant_rsn_preauth_scan_results( 1463 struct wpa_supplicant *wpa_s) 1464 { 1465 struct wpa_bss *bss; 1466 1467 if (rsn_preauth_scan_results(wpa_s->wpa) < 0) 1468 return; 1469 1470 dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) { 1471 const u8 *ssid, *rsn; 1472 1473 ssid = wpa_bss_get_ie(bss, WLAN_EID_SSID); 1474 if (ssid == NULL) 1475 continue; 1476 1477 rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN); 1478 if (rsn == NULL) 1479 continue; 1480 1481 rsn_preauth_scan_result(wpa_s->wpa, bss->bssid, ssid, rsn); 1482 } 1483 1484 } 1485 1486 1487 static int wpa_supplicant_need_to_roam(struct wpa_supplicant *wpa_s, 1488 struct wpa_bss *selected, 1489 struct wpa_ssid *ssid) 1490 { 1491 struct wpa_bss *current_bss = NULL; 1492 #ifndef CONFIG_NO_ROAMING 1493 int min_diff, diff; 1494 int to_5ghz; 1495 int cur_est, sel_est; 1496 #endif /* CONFIG_NO_ROAMING */ 1497 1498 if (wpa_s->reassociate) 1499 return 1; /* explicit request to reassociate */ 1500 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1501 return 1; /* we are not associated; continue */ 1502 if (wpa_s->current_ssid == NULL) 1503 return 1; /* unknown current SSID */ 1504 if (wpa_s->current_ssid != ssid) 1505 return 1; /* different network block */ 1506 1507 if (wpas_driver_bss_selection(wpa_s)) 1508 return 0; /* Driver-based roaming */ 1509 1510 if (wpa_s->current_ssid->ssid) 1511 current_bss = wpa_bss_get(wpa_s, wpa_s->bssid, 1512 wpa_s->current_ssid->ssid, 1513 wpa_s->current_ssid->ssid_len); 1514 if (!current_bss) 1515 current_bss = wpa_bss_get_bssid(wpa_s, wpa_s->bssid); 1516 1517 if (!current_bss) 1518 return 1; /* current BSS not seen in scan results */ 1519 1520 if (current_bss == selected) 1521 return 0; 1522 1523 if (selected->last_update_idx > current_bss->last_update_idx) 1524 return 1; /* current BSS not seen in the last scan */ 1525 1526 #ifndef CONFIG_NO_ROAMING 1527 wpa_dbg(wpa_s, MSG_DEBUG, "Considering within-ESS reassociation"); 1528 wpa_dbg(wpa_s, MSG_DEBUG, "Current BSS: " MACSTR 1529 " freq=%d level=%d snr=%d est_throughput=%u", 1530 MAC2STR(current_bss->bssid), 1531 current_bss->freq, current_bss->level, 1532 current_bss->snr, current_bss->est_throughput); 1533 wpa_dbg(wpa_s, MSG_DEBUG, "Selected BSS: " MACSTR 1534 " freq=%d level=%d snr=%d est_throughput=%u", 1535 MAC2STR(selected->bssid), selected->freq, selected->level, 1536 selected->snr, selected->est_throughput); 1537 1538 if (wpa_s->current_ssid->bssid_set && 1539 os_memcmp(selected->bssid, wpa_s->current_ssid->bssid, ETH_ALEN) == 1540 0) { 1541 wpa_dbg(wpa_s, MSG_DEBUG, "Allow reassociation - selected BSS " 1542 "has preferred BSSID"); 1543 return 1; 1544 } 1545 1546 if (selected->est_throughput > current_bss->est_throughput + 5000) { 1547 wpa_dbg(wpa_s, MSG_DEBUG, 1548 "Allow reassociation - selected BSS has better estimated throughput"); 1549 return 1; 1550 } 1551 1552 to_5ghz = selected->freq > 4000 && current_bss->freq < 4000; 1553 1554 if (current_bss->level < 0 && 1555 current_bss->level > selected->level + to_5ghz * 2) { 1556 wpa_dbg(wpa_s, MSG_DEBUG, "Skip roam - Current BSS has better " 1557 "signal level"); 1558 return 0; 1559 } 1560 1561 if (current_bss->est_throughput > selected->est_throughput + 5000) { 1562 wpa_dbg(wpa_s, MSG_DEBUG, 1563 "Skip roam - Current BSS has better estimated throughput"); 1564 return 0; 1565 } 1566 1567 cur_est = current_bss->est_throughput; 1568 sel_est = selected->est_throughput; 1569 min_diff = 2; 1570 if (current_bss->level < 0) { 1571 if (current_bss->level < -85) 1572 min_diff = 1; 1573 else if (current_bss->level < -80) 1574 min_diff = 2; 1575 else if (current_bss->level < -75) 1576 min_diff = 3; 1577 else if (current_bss->level < -70) 1578 min_diff = 4; 1579 else 1580 min_diff = 5; 1581 if (cur_est > sel_est * 1.5) 1582 min_diff += 10; 1583 else if (cur_est > sel_est * 1.2) 1584 min_diff += 5; 1585 else if (cur_est > sel_est * 1.1) 1586 min_diff += 2; 1587 else if (cur_est > sel_est) 1588 min_diff++; 1589 } 1590 if (to_5ghz) { 1591 int reduce = 2; 1592 1593 /* Make it easier to move to 5 GHz band */ 1594 if (sel_est > cur_est * 1.5) 1595 reduce = 5; 1596 else if (sel_est > cur_est * 1.2) 1597 reduce = 4; 1598 else if (sel_est > cur_est * 1.1) 1599 reduce = 3; 1600 1601 if (min_diff > reduce) 1602 min_diff -= reduce; 1603 else 1604 min_diff = 0; 1605 } 1606 diff = abs(current_bss->level - selected->level); 1607 if (diff < min_diff) { 1608 wpa_dbg(wpa_s, MSG_DEBUG, 1609 "Skip roam - too small difference in signal level (%d < %d)", 1610 diff, min_diff); 1611 return 0; 1612 } 1613 1614 wpa_dbg(wpa_s, MSG_DEBUG, 1615 "Allow reassociation due to difference in signal level (%d >= %d)", 1616 diff, min_diff); 1617 return 1; 1618 #else /* CONFIG_NO_ROAMING */ 1619 return 0; 1620 #endif /* CONFIG_NO_ROAMING */ 1621 } 1622 1623 1624 /* 1625 * Return a negative value if no scan results could be fetched or if scan 1626 * results should not be shared with other virtual interfaces. 1627 * Return 0 if scan results were fetched and may be shared with other 1628 * interfaces. 1629 * Return 1 if scan results may be shared with other virtual interfaces but may 1630 * not trigger any operations. 1631 * Return 2 if the interface was removed and cannot be used. 1632 */ 1633 static int _wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1634 union wpa_event_data *data, 1635 int own_request, int update_only) 1636 { 1637 struct wpa_scan_results *scan_res = NULL; 1638 int ret = 0; 1639 int ap = 0; 1640 #ifndef CONFIG_NO_RANDOM_POOL 1641 size_t i, num; 1642 #endif /* CONFIG_NO_RANDOM_POOL */ 1643 1644 #ifdef CONFIG_AP 1645 if (wpa_s->ap_iface) 1646 ap = 1; 1647 #endif /* CONFIG_AP */ 1648 1649 wpa_supplicant_notify_scanning(wpa_s, 0); 1650 1651 scan_res = wpa_supplicant_get_scan_results(wpa_s, 1652 data ? &data->scan_info : 1653 NULL, 1); 1654 if (scan_res == NULL) { 1655 if (wpa_s->conf->ap_scan == 2 || ap || 1656 wpa_s->scan_res_handler == scan_only_handler) 1657 return -1; 1658 if (!own_request) 1659 return -1; 1660 if (data && data->scan_info.external_scan) 1661 return -1; 1662 wpa_dbg(wpa_s, MSG_DEBUG, "Failed to get scan results - try " 1663 "scanning again"); 1664 wpa_supplicant_req_new_scan(wpa_s, 1, 0); 1665 ret = -1; 1666 goto scan_work_done; 1667 } 1668 1669 #ifndef CONFIG_NO_RANDOM_POOL 1670 num = scan_res->num; 1671 if (num > 10) 1672 num = 10; 1673 for (i = 0; i < num; i++) { 1674 u8 buf[5]; 1675 struct wpa_scan_res *res = scan_res->res[i]; 1676 buf[0] = res->bssid[5]; 1677 buf[1] = res->qual & 0xff; 1678 buf[2] = res->noise & 0xff; 1679 buf[3] = res->level & 0xff; 1680 buf[4] = res->tsf & 0xff; 1681 random_add_randomness(buf, sizeof(buf)); 1682 } 1683 #endif /* CONFIG_NO_RANDOM_POOL */ 1684 1685 if (update_only) { 1686 ret = 1; 1687 goto scan_work_done; 1688 } 1689 1690 if (own_request && wpa_s->scan_res_handler && 1691 !(data && data->scan_info.external_scan)) { 1692 void (*scan_res_handler)(struct wpa_supplicant *wpa_s, 1693 struct wpa_scan_results *scan_res); 1694 1695 scan_res_handler = wpa_s->scan_res_handler; 1696 wpa_s->scan_res_handler = NULL; 1697 scan_res_handler(wpa_s, scan_res); 1698 ret = 1; 1699 goto scan_work_done; 1700 } 1701 1702 if (ap) { 1703 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore scan results in AP mode"); 1704 #ifdef CONFIG_AP 1705 if (wpa_s->ap_iface->scan_cb) 1706 wpa_s->ap_iface->scan_cb(wpa_s->ap_iface); 1707 #endif /* CONFIG_AP */ 1708 goto scan_work_done; 1709 } 1710 1711 wpa_dbg(wpa_s, MSG_DEBUG, "New scan results available (own=%u ext=%u)", 1712 wpa_s->own_scan_running, 1713 data ? data->scan_info.external_scan : 0); 1714 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ && 1715 wpa_s->manual_scan_use_id && wpa_s->own_scan_running && 1716 own_request && !(data && data->scan_info.external_scan)) { 1717 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS "id=%u", 1718 wpa_s->manual_scan_id); 1719 wpa_s->manual_scan_use_id = 0; 1720 } else { 1721 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_RESULTS); 1722 } 1723 wpas_notify_scan_results(wpa_s); 1724 1725 wpas_notify_scan_done(wpa_s, 1); 1726 1727 if (data && data->scan_info.external_scan) { 1728 wpa_dbg(wpa_s, MSG_DEBUG, "Do not use results from externally requested scan operation for network selection"); 1729 wpa_scan_results_free(scan_res); 1730 return 0; 1731 } 1732 1733 if (wnm_scan_process(wpa_s, 1) > 0) 1734 goto scan_work_done; 1735 1736 if (sme_proc_obss_scan(wpa_s) > 0) 1737 goto scan_work_done; 1738 1739 if (own_request && 1740 wpas_beacon_rep_scan_process(wpa_s, scan_res, &data->scan_info) > 0) 1741 goto scan_work_done; 1742 1743 if ((wpa_s->conf->ap_scan == 2 && !wpas_wps_searching(wpa_s))) 1744 goto scan_work_done; 1745 1746 if (autoscan_notify_scan(wpa_s, scan_res)) 1747 goto scan_work_done; 1748 1749 if (wpa_s->disconnected) { 1750 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 1751 goto scan_work_done; 1752 } 1753 1754 if (!wpas_driver_bss_selection(wpa_s) && 1755 bgscan_notify_scan(wpa_s, scan_res) == 1) 1756 goto scan_work_done; 1757 1758 wpas_wps_update_ap_info(wpa_s, scan_res); 1759 1760 if (wpa_s->wpa_state >= WPA_AUTHENTICATING && 1761 wpa_s->wpa_state < WPA_COMPLETED) 1762 goto scan_work_done; 1763 1764 wpa_scan_results_free(scan_res); 1765 1766 if (own_request && wpa_s->scan_work) { 1767 struct wpa_radio_work *work = wpa_s->scan_work; 1768 wpa_s->scan_work = NULL; 1769 radio_work_done(work); 1770 } 1771 1772 return wpas_select_network_from_last_scan(wpa_s, 1, own_request); 1773 1774 scan_work_done: 1775 wpa_scan_results_free(scan_res); 1776 if (own_request && wpa_s->scan_work) { 1777 struct wpa_radio_work *work = wpa_s->scan_work; 1778 wpa_s->scan_work = NULL; 1779 radio_work_done(work); 1780 } 1781 return ret; 1782 } 1783 1784 1785 static int wpas_select_network_from_last_scan(struct wpa_supplicant *wpa_s, 1786 int new_scan, int own_request) 1787 { 1788 struct wpa_bss *selected; 1789 struct wpa_ssid *ssid = NULL; 1790 int time_to_reenable = wpas_reenabled_network_time(wpa_s); 1791 1792 if (time_to_reenable > 0) { 1793 wpa_dbg(wpa_s, MSG_DEBUG, 1794 "Postpone network selection by %d seconds since all networks are disabled", 1795 time_to_reenable); 1796 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL); 1797 eloop_register_timeout(time_to_reenable, 0, 1798 wpas_network_reenabled, wpa_s, NULL); 1799 return 0; 1800 } 1801 1802 if (wpa_s->p2p_mgmt) 1803 return 0; /* no normal connection on p2p_mgmt interface */ 1804 1805 selected = wpa_supplicant_pick_network(wpa_s, &ssid); 1806 1807 #ifdef CONFIG_MESH 1808 if (wpa_s->ifmsh) { 1809 wpa_msg(wpa_s, MSG_INFO, 1810 "Avoiding join because we already joined a mesh group"); 1811 return 0; 1812 } 1813 #endif /* CONFIG_MESH */ 1814 1815 if (selected) { 1816 int skip; 1817 skip = !wpa_supplicant_need_to_roam(wpa_s, selected, ssid); 1818 if (skip) { 1819 if (new_scan) 1820 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1821 return 0; 1822 } 1823 1824 if (ssid != wpa_s->current_ssid && 1825 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 1826 wpa_s->own_disconnect_req = 1; 1827 wpa_supplicant_deauthenticate( 1828 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1829 } 1830 1831 if (wpa_supplicant_connect(wpa_s, selected, ssid) < 0) { 1832 wpa_dbg(wpa_s, MSG_DEBUG, "Connect failed"); 1833 return -1; 1834 } 1835 if (new_scan) 1836 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1837 /* 1838 * Do not allow other virtual radios to trigger operations based 1839 * on these scan results since we do not want them to start 1840 * other associations at the same time. 1841 */ 1842 return 1; 1843 } else { 1844 wpa_dbg(wpa_s, MSG_DEBUG, "No suitable network found"); 1845 ssid = wpa_supplicant_pick_new_network(wpa_s); 1846 if (ssid) { 1847 wpa_dbg(wpa_s, MSG_DEBUG, "Setup a new network"); 1848 wpa_supplicant_associate(wpa_s, NULL, ssid); 1849 if (new_scan) 1850 wpa_supplicant_rsn_preauth_scan_results(wpa_s); 1851 } else if (own_request) { 1852 /* 1853 * No SSID found. If SCAN results are as a result of 1854 * own scan request and not due to a scan request on 1855 * another shared interface, try another scan. 1856 */ 1857 int timeout_sec = wpa_s->scan_interval; 1858 int timeout_usec = 0; 1859 #ifdef CONFIG_P2P 1860 int res; 1861 1862 res = wpas_p2p_scan_no_go_seen(wpa_s); 1863 if (res == 2) 1864 return 2; 1865 if (res == 1) 1866 return 0; 1867 1868 if (wpa_s->p2p_in_provisioning || 1869 wpa_s->show_group_started || 1870 wpa_s->p2p_in_invitation) { 1871 /* 1872 * Use shorter wait during P2P Provisioning 1873 * state and during P2P join-a-group operation 1874 * to speed up group formation. 1875 */ 1876 timeout_sec = 0; 1877 timeout_usec = 250000; 1878 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1879 timeout_usec); 1880 return 0; 1881 } 1882 #endif /* CONFIG_P2P */ 1883 #ifdef CONFIG_INTERWORKING 1884 if (wpa_s->conf->auto_interworking && 1885 wpa_s->conf->interworking && 1886 wpa_s->conf->cred) { 1887 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: " 1888 "start ANQP fetch since no matching " 1889 "networks found"); 1890 wpa_s->network_select = 1; 1891 wpa_s->auto_network_select = 1; 1892 interworking_start_fetch_anqp(wpa_s); 1893 return 1; 1894 } 1895 #endif /* CONFIG_INTERWORKING */ 1896 #ifdef CONFIG_WPS 1897 if (wpa_s->after_wps > 0 || wpas_wps_searching(wpa_s)) { 1898 wpa_dbg(wpa_s, MSG_DEBUG, "Use shorter wait during WPS processing"); 1899 timeout_sec = 0; 1900 timeout_usec = 500000; 1901 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1902 timeout_usec); 1903 return 0; 1904 } 1905 #endif /* CONFIG_WPS */ 1906 if (wpa_supplicant_req_sched_scan(wpa_s)) 1907 wpa_supplicant_req_new_scan(wpa_s, timeout_sec, 1908 timeout_usec); 1909 1910 wpa_msg_ctrl(wpa_s, MSG_INFO, 1911 WPA_EVENT_NETWORK_NOT_FOUND); 1912 } 1913 } 1914 return 0; 1915 } 1916 1917 1918 static int wpa_supplicant_event_scan_results(struct wpa_supplicant *wpa_s, 1919 union wpa_event_data *data) 1920 { 1921 struct wpa_supplicant *ifs; 1922 int res; 1923 1924 res = _wpa_supplicant_event_scan_results(wpa_s, data, 1, 0); 1925 if (res == 2) { 1926 /* 1927 * Interface may have been removed, so must not dereference 1928 * wpa_s after this. 1929 */ 1930 return 1; 1931 } 1932 1933 if (res < 0) { 1934 /* 1935 * If no scan results could be fetched, then no need to 1936 * notify those interfaces that did not actually request 1937 * this scan. Similarly, if scan results started a new operation on this 1938 * interface, do not notify other interfaces to avoid concurrent 1939 * operations during a connection attempt. 1940 */ 1941 return 0; 1942 } 1943 1944 /* 1945 * Check other interfaces to see if they share the same radio. If 1946 * so, they get updated with this same scan info. 1947 */ 1948 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, 1949 radio_list) { 1950 if (ifs != wpa_s) { 1951 wpa_printf(MSG_DEBUG, "%s: Updating scan results from " 1952 "sibling", ifs->ifname); 1953 res = _wpa_supplicant_event_scan_results(ifs, data, 0, 1954 res > 0); 1955 if (res < 0) 1956 return 0; 1957 } 1958 } 1959 1960 return 0; 1961 } 1962 1963 #endif /* CONFIG_NO_SCAN_PROCESSING */ 1964 1965 1966 int wpa_supplicant_fast_associate(struct wpa_supplicant *wpa_s) 1967 { 1968 #ifdef CONFIG_NO_SCAN_PROCESSING 1969 return -1; 1970 #else /* CONFIG_NO_SCAN_PROCESSING */ 1971 struct os_reltime now; 1972 1973 wpa_s->ignore_post_flush_scan_res = 0; 1974 1975 if (wpa_s->last_scan_res_used == 0) 1976 return -1; 1977 1978 os_get_reltime(&now); 1979 if (os_reltime_expired(&now, &wpa_s->last_scan, 5)) { 1980 wpa_printf(MSG_DEBUG, "Fast associate: Old scan results"); 1981 return -1; 1982 } 1983 1984 return wpas_select_network_from_last_scan(wpa_s, 0, 1); 1985 #endif /* CONFIG_NO_SCAN_PROCESSING */ 1986 } 1987 1988 #ifdef CONFIG_WNM 1989 1990 static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx) 1991 { 1992 struct wpa_supplicant *wpa_s = eloop_ctx; 1993 1994 if (wpa_s->wpa_state < WPA_ASSOCIATED) 1995 return; 1996 1997 if (!wpa_s->no_keep_alive) { 1998 wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR, 1999 MAC2STR(wpa_s->bssid)); 2000 /* TODO: could skip this if normal data traffic has been sent */ 2001 /* TODO: Consider using some more appropriate data frame for 2002 * this */ 2003 if (wpa_s->l2) 2004 l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, 2005 (u8 *) "", 0); 2006 } 2007 2008 #ifdef CONFIG_SME 2009 if (wpa_s->sme.bss_max_idle_period) { 2010 unsigned int msec; 2011 msec = wpa_s->sme.bss_max_idle_period * 1024; /* times 1000 */ 2012 if (msec > 100) 2013 msec -= 100; 2014 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 2015 wnm_bss_keep_alive, wpa_s, NULL); 2016 } 2017 #endif /* CONFIG_SME */ 2018 } 2019 2020 2021 static void wnm_process_assoc_resp(struct wpa_supplicant *wpa_s, 2022 const u8 *ies, size_t ies_len) 2023 { 2024 struct ieee802_11_elems elems; 2025 2026 if (ies == NULL) 2027 return; 2028 2029 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 2030 return; 2031 2032 #ifdef CONFIG_SME 2033 if (elems.bss_max_idle_period) { 2034 unsigned int msec; 2035 wpa_s->sme.bss_max_idle_period = 2036 WPA_GET_LE16(elems.bss_max_idle_period); 2037 wpa_printf(MSG_DEBUG, "WNM: BSS Max Idle Period: %u (* 1000 " 2038 "TU)%s", wpa_s->sme.bss_max_idle_period, 2039 (elems.bss_max_idle_period[2] & 0x01) ? 2040 " (protected keep-live required)" : ""); 2041 if (wpa_s->sme.bss_max_idle_period == 0) 2042 wpa_s->sme.bss_max_idle_period = 1; 2043 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) { 2044 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 2045 /* msec times 1000 */ 2046 msec = wpa_s->sme.bss_max_idle_period * 1024; 2047 if (msec > 100) 2048 msec -= 100; 2049 eloop_register_timeout(msec / 1000, msec % 1000 * 1000, 2050 wnm_bss_keep_alive, wpa_s, 2051 NULL); 2052 } 2053 } 2054 #endif /* CONFIG_SME */ 2055 } 2056 2057 #endif /* CONFIG_WNM */ 2058 2059 2060 void wnm_bss_keep_alive_deinit(struct wpa_supplicant *wpa_s) 2061 { 2062 #ifdef CONFIG_WNM 2063 eloop_cancel_timeout(wnm_bss_keep_alive, wpa_s, NULL); 2064 #endif /* CONFIG_WNM */ 2065 } 2066 2067 2068 #ifdef CONFIG_INTERWORKING 2069 2070 static int wpas_qos_map_set(struct wpa_supplicant *wpa_s, const u8 *qos_map, 2071 size_t len) 2072 { 2073 int res; 2074 2075 wpa_hexdump(MSG_DEBUG, "Interworking: QoS Map Set", qos_map, len); 2076 res = wpa_drv_set_qos_map(wpa_s, qos_map, len); 2077 if (res) { 2078 wpa_printf(MSG_DEBUG, "Interworking: Failed to configure QoS Map Set to the driver"); 2079 } 2080 2081 return res; 2082 } 2083 2084 2085 static void interworking_process_assoc_resp(struct wpa_supplicant *wpa_s, 2086 const u8 *ies, size_t ies_len) 2087 { 2088 struct ieee802_11_elems elems; 2089 2090 if (ies == NULL) 2091 return; 2092 2093 if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) 2094 return; 2095 2096 if (elems.qos_map_set) { 2097 wpas_qos_map_set(wpa_s, elems.qos_map_set, 2098 elems.qos_map_set_len); 2099 } 2100 } 2101 2102 #endif /* CONFIG_INTERWORKING */ 2103 2104 2105 #ifdef CONFIG_FST 2106 static int wpas_fst_update_mbie(struct wpa_supplicant *wpa_s, 2107 const u8 *ie, size_t ie_len) 2108 { 2109 struct mb_ies_info mb_ies; 2110 2111 if (!ie || !ie_len || !wpa_s->fst) 2112 return -ENOENT; 2113 2114 os_memset(&mb_ies, 0, sizeof(mb_ies)); 2115 2116 while (ie_len >= 2 && mb_ies.nof_ies < MAX_NOF_MB_IES_SUPPORTED) { 2117 size_t len; 2118 2119 len = 2 + ie[1]; 2120 if (len > ie_len) { 2121 wpa_hexdump(MSG_DEBUG, "FST: Truncated IE found", 2122 ie, ie_len); 2123 break; 2124 } 2125 2126 if (ie[0] == WLAN_EID_MULTI_BAND) { 2127 wpa_printf(MSG_DEBUG, "MB IE of %u bytes found", 2128 (unsigned int) len); 2129 mb_ies.ies[mb_ies.nof_ies].ie = ie + 2; 2130 mb_ies.ies[mb_ies.nof_ies].ie_len = len - 2; 2131 mb_ies.nof_ies++; 2132 } 2133 2134 ie_len -= len; 2135 ie += len; 2136 } 2137 2138 if (mb_ies.nof_ies > 0) { 2139 wpabuf_free(wpa_s->received_mb_ies); 2140 wpa_s->received_mb_ies = mb_ies_by_info(&mb_ies); 2141 return 0; 2142 } 2143 2144 return -ENOENT; 2145 } 2146 #endif /* CONFIG_FST */ 2147 2148 2149 static int wpa_supplicant_event_associnfo(struct wpa_supplicant *wpa_s, 2150 union wpa_event_data *data) 2151 { 2152 int l, len, found = 0, wpa_found, rsn_found; 2153 const u8 *p; 2154 #ifdef CONFIG_IEEE80211R 2155 u8 bssid[ETH_ALEN]; 2156 #endif /* CONFIG_IEEE80211R */ 2157 2158 wpa_dbg(wpa_s, MSG_DEBUG, "Association info event"); 2159 if (data->assoc_info.req_ies) 2160 wpa_hexdump(MSG_DEBUG, "req_ies", data->assoc_info.req_ies, 2161 data->assoc_info.req_ies_len); 2162 if (data->assoc_info.resp_ies) { 2163 wpa_hexdump(MSG_DEBUG, "resp_ies", data->assoc_info.resp_ies, 2164 data->assoc_info.resp_ies_len); 2165 #ifdef CONFIG_TDLS 2166 wpa_tdls_assoc_resp_ies(wpa_s->wpa, data->assoc_info.resp_ies, 2167 data->assoc_info.resp_ies_len); 2168 #endif /* CONFIG_TDLS */ 2169 #ifdef CONFIG_WNM 2170 wnm_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 2171 data->assoc_info.resp_ies_len); 2172 #endif /* CONFIG_WNM */ 2173 #ifdef CONFIG_INTERWORKING 2174 interworking_process_assoc_resp(wpa_s, data->assoc_info.resp_ies, 2175 data->assoc_info.resp_ies_len); 2176 #endif /* CONFIG_INTERWORKING */ 2177 } 2178 if (data->assoc_info.beacon_ies) 2179 wpa_hexdump(MSG_DEBUG, "beacon_ies", 2180 data->assoc_info.beacon_ies, 2181 data->assoc_info.beacon_ies_len); 2182 if (data->assoc_info.freq) 2183 wpa_dbg(wpa_s, MSG_DEBUG, "freq=%u MHz", 2184 data->assoc_info.freq); 2185 2186 p = data->assoc_info.req_ies; 2187 l = data->assoc_info.req_ies_len; 2188 2189 /* Go through the IEs and make a copy of the WPA/RSN IE, if present. */ 2190 while (p && l >= 2) { 2191 len = p[1] + 2; 2192 if (len > l) { 2193 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 2194 p, l); 2195 break; 2196 } 2197 if ((p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 2198 (os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0)) || 2199 (p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 4 && 2200 (os_memcmp(&p[2], "\x50\x6F\x9A\x12", 4) == 0)) || 2201 (p[0] == WLAN_EID_RSN && p[1] >= 2)) { 2202 if (wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, p, len)) 2203 break; 2204 found = 1; 2205 wpa_find_assoc_pmkid(wpa_s); 2206 break; 2207 } 2208 l -= len; 2209 p += len; 2210 } 2211 if (!found && data->assoc_info.req_ies) 2212 wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0); 2213 2214 #ifdef CONFIG_FILS 2215 #ifdef CONFIG_SME 2216 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FILS && 2217 (!data->assoc_info.resp_frame || 2218 fils_process_assoc_resp(wpa_s->wpa, 2219 data->assoc_info.resp_frame, 2220 data->assoc_info.resp_frame_len) < 0)) { 2221 wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_UNSPECIFIED); 2222 return -1; 2223 } 2224 #endif /* CONFIG_SME */ 2225 #endif /* CONFIG_FILS */ 2226 2227 #ifdef CONFIG_IEEE80211R 2228 #ifdef CONFIG_SME 2229 if (wpa_s->sme.auth_alg == WPA_AUTH_ALG_FT) { 2230 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 2231 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 2232 data->assoc_info.resp_ies, 2233 data->assoc_info.resp_ies_len, 2234 bssid) < 0) { 2235 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 2236 "Reassociation Response failed"); 2237 wpa_supplicant_deauthenticate( 2238 wpa_s, WLAN_REASON_INVALID_IE); 2239 return -1; 2240 } 2241 } 2242 2243 p = data->assoc_info.resp_ies; 2244 l = data->assoc_info.resp_ies_len; 2245 2246 #ifdef CONFIG_WPS_STRICT 2247 if (p && wpa_s->current_ssid && 2248 wpa_s->current_ssid->key_mgmt == WPA_KEY_MGMT_WPS) { 2249 struct wpabuf *wps; 2250 wps = ieee802_11_vendor_ie_concat(p, l, WPS_IE_VENDOR_TYPE); 2251 if (wps == NULL) { 2252 wpa_msg(wpa_s, MSG_INFO, "WPS-STRICT: AP did not " 2253 "include WPS IE in (Re)Association Response"); 2254 return -1; 2255 } 2256 2257 if (wps_validate_assoc_resp(wps) < 0) { 2258 wpabuf_free(wps); 2259 wpa_supplicant_deauthenticate( 2260 wpa_s, WLAN_REASON_INVALID_IE); 2261 return -1; 2262 } 2263 wpabuf_free(wps); 2264 } 2265 #endif /* CONFIG_WPS_STRICT */ 2266 2267 /* Go through the IEs and make a copy of the MDIE, if present. */ 2268 while (p && l >= 2) { 2269 len = p[1] + 2; 2270 if (len > l) { 2271 wpa_hexdump(MSG_DEBUG, "Truncated IE in assoc_info", 2272 p, l); 2273 break; 2274 } 2275 if (p[0] == WLAN_EID_MOBILITY_DOMAIN && 2276 p[1] >= MOBILITY_DOMAIN_ID_LEN) { 2277 wpa_s->sme.ft_used = 1; 2278 os_memcpy(wpa_s->sme.mobility_domain, p + 2, 2279 MOBILITY_DOMAIN_ID_LEN); 2280 break; 2281 } 2282 l -= len; 2283 p += len; 2284 } 2285 #endif /* CONFIG_SME */ 2286 2287 /* Process FT when SME is in the driver */ 2288 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) && 2289 wpa_ft_is_completed(wpa_s->wpa)) { 2290 if (wpa_drv_get_bssid(wpa_s, bssid) < 0 || 2291 wpa_ft_validate_reassoc_resp(wpa_s->wpa, 2292 data->assoc_info.resp_ies, 2293 data->assoc_info.resp_ies_len, 2294 bssid) < 0) { 2295 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Validation of " 2296 "Reassociation Response failed"); 2297 wpa_supplicant_deauthenticate( 2298 wpa_s, WLAN_REASON_INVALID_IE); 2299 return -1; 2300 } 2301 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Reassociation Response done"); 2302 } 2303 2304 wpa_sm_set_ft_params(wpa_s->wpa, data->assoc_info.resp_ies, 2305 data->assoc_info.resp_ies_len); 2306 #endif /* CONFIG_IEEE80211R */ 2307 2308 /* WPA/RSN IE from Beacon/ProbeResp */ 2309 p = data->assoc_info.beacon_ies; 2310 l = data->assoc_info.beacon_ies_len; 2311 2312 /* Go through the IEs and make a copy of the WPA/RSN IEs, if present. 2313 */ 2314 wpa_found = rsn_found = 0; 2315 while (p && l >= 2) { 2316 len = p[1] + 2; 2317 if (len > l) { 2318 wpa_hexdump(MSG_DEBUG, "Truncated IE in beacon_ies", 2319 p, l); 2320 break; 2321 } 2322 if (!wpa_found && 2323 p[0] == WLAN_EID_VENDOR_SPECIFIC && p[1] >= 6 && 2324 os_memcmp(&p[2], "\x00\x50\xF2\x01\x01\x00", 6) == 0) { 2325 wpa_found = 1; 2326 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, p, len); 2327 } 2328 2329 if (!rsn_found && 2330 p[0] == WLAN_EID_RSN && p[1] >= 2) { 2331 rsn_found = 1; 2332 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, p, len); 2333 } 2334 2335 l -= len; 2336 p += len; 2337 } 2338 2339 if (!wpa_found && data->assoc_info.beacon_ies) 2340 wpa_sm_set_ap_wpa_ie(wpa_s->wpa, NULL, 0); 2341 if (!rsn_found && data->assoc_info.beacon_ies) 2342 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, NULL, 0); 2343 if (wpa_found || rsn_found) 2344 wpa_s->ap_ies_from_associnfo = 1; 2345 2346 if (wpa_s->assoc_freq && data->assoc_info.freq && 2347 wpa_s->assoc_freq != data->assoc_info.freq) { 2348 wpa_printf(MSG_DEBUG, "Operating frequency changed from " 2349 "%u to %u MHz", 2350 wpa_s->assoc_freq, data->assoc_info.freq); 2351 wpa_supplicant_update_scan_results(wpa_s); 2352 } 2353 2354 wpa_s->assoc_freq = data->assoc_info.freq; 2355 2356 return 0; 2357 } 2358 2359 2360 static int wpa_supplicant_assoc_update_ie(struct wpa_supplicant *wpa_s) 2361 { 2362 const u8 *bss_wpa = NULL, *bss_rsn = NULL; 2363 2364 if (!wpa_s->current_bss || !wpa_s->current_ssid) 2365 return -1; 2366 2367 if (!wpa_key_mgmt_wpa_any(wpa_s->current_ssid->key_mgmt)) 2368 return 0; 2369 2370 bss_wpa = wpa_bss_get_vendor_ie(wpa_s->current_bss, 2371 WPA_IE_VENDOR_TYPE); 2372 bss_rsn = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_RSN); 2373 2374 if (wpa_sm_set_ap_wpa_ie(wpa_s->wpa, bss_wpa, 2375 bss_wpa ? 2 + bss_wpa[1] : 0) || 2376 wpa_sm_set_ap_rsn_ie(wpa_s->wpa, bss_rsn, 2377 bss_rsn ? 2 + bss_rsn[1] : 0)) 2378 return -1; 2379 2380 return 0; 2381 } 2382 2383 2384 static void wpas_fst_update_mb_assoc(struct wpa_supplicant *wpa_s, 2385 union wpa_event_data *data) 2386 { 2387 #ifdef CONFIG_FST 2388 struct assoc_info *ai = data ? &data->assoc_info : NULL; 2389 struct wpa_bss *bss = wpa_s->current_bss; 2390 const u8 *ieprb, *iebcn; 2391 2392 wpabuf_free(wpa_s->received_mb_ies); 2393 wpa_s->received_mb_ies = NULL; 2394 2395 if (ai && 2396 !wpas_fst_update_mbie(wpa_s, ai->resp_ies, ai->resp_ies_len)) { 2397 wpa_printf(MSG_DEBUG, 2398 "FST: MB IEs updated from Association Response frame"); 2399 return; 2400 } 2401 2402 if (ai && 2403 !wpas_fst_update_mbie(wpa_s, ai->beacon_ies, ai->beacon_ies_len)) { 2404 wpa_printf(MSG_DEBUG, 2405 "FST: MB IEs updated from association event Beacon IEs"); 2406 return; 2407 } 2408 2409 if (!bss) 2410 return; 2411 2412 ieprb = (const u8 *) (bss + 1); 2413 iebcn = ieprb + bss->ie_len; 2414 2415 if (!wpas_fst_update_mbie(wpa_s, ieprb, bss->ie_len)) 2416 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss IE"); 2417 else if (!wpas_fst_update_mbie(wpa_s, iebcn, bss->beacon_ie_len)) 2418 wpa_printf(MSG_DEBUG, "FST: MB IEs updated from bss beacon IE"); 2419 #endif /* CONFIG_FST */ 2420 } 2421 2422 2423 static void wpa_supplicant_event_assoc(struct wpa_supplicant *wpa_s, 2424 union wpa_event_data *data) 2425 { 2426 u8 bssid[ETH_ALEN]; 2427 int ft_completed, already_authorized; 2428 int new_bss = 0; 2429 2430 #ifdef CONFIG_AP 2431 if (wpa_s->ap_iface) { 2432 if (!data) 2433 return; 2434 hostapd_notif_assoc(wpa_s->ap_iface->bss[0], 2435 data->assoc_info.addr, 2436 data->assoc_info.req_ies, 2437 data->assoc_info.req_ies_len, 2438 data->assoc_info.reassoc); 2439 return; 2440 } 2441 #endif /* CONFIG_AP */ 2442 2443 eloop_cancel_timeout(wpas_network_reenabled, wpa_s, NULL); 2444 2445 ft_completed = wpa_ft_is_completed(wpa_s->wpa); 2446 if (data && wpa_supplicant_event_associnfo(wpa_s, data) < 0) 2447 return; 2448 /* 2449 * FILS authentication can share the same mechanism to mark the 2450 * connection fully authenticated, so set ft_completed also based on 2451 * FILS result. 2452 */ 2453 if (!ft_completed) 2454 ft_completed = wpa_fils_is_completed(wpa_s->wpa); 2455 2456 if (wpa_drv_get_bssid(wpa_s, bssid) < 0) { 2457 wpa_dbg(wpa_s, MSG_ERROR, "Failed to get BSSID"); 2458 wpa_supplicant_deauthenticate( 2459 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2460 return; 2461 } 2462 2463 wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATED); 2464 if (os_memcmp(bssid, wpa_s->bssid, ETH_ALEN) != 0) { 2465 wpa_dbg(wpa_s, MSG_DEBUG, "Associated to a new BSS: BSSID=" 2466 MACSTR, MAC2STR(bssid)); 2467 new_bss = 1; 2468 random_add_randomness(bssid, ETH_ALEN); 2469 os_memcpy(wpa_s->bssid, bssid, ETH_ALEN); 2470 os_memset(wpa_s->pending_bssid, 0, ETH_ALEN); 2471 wpas_notify_bssid_changed(wpa_s); 2472 2473 if (wpa_supplicant_dynamic_keys(wpa_s) && !ft_completed) { 2474 wpa_clear_keys(wpa_s, bssid); 2475 } 2476 if (wpa_supplicant_select_config(wpa_s) < 0) { 2477 wpa_supplicant_deauthenticate( 2478 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2479 return; 2480 } 2481 } 2482 2483 if (wpa_s->conf->ap_scan == 1 && 2484 wpa_s->drv_flags & WPA_DRIVER_FLAGS_BSS_SELECTION) { 2485 if (wpa_supplicant_assoc_update_ie(wpa_s) < 0 && new_bss) 2486 wpa_msg(wpa_s, MSG_WARNING, 2487 "WPA/RSN IEs not updated"); 2488 } 2489 2490 wpas_fst_update_mb_assoc(wpa_s, data); 2491 2492 #ifdef CONFIG_SME 2493 os_memcpy(wpa_s->sme.prev_bssid, bssid, ETH_ALEN); 2494 wpa_s->sme.prev_bssid_set = 1; 2495 wpa_s->sme.last_unprot_disconnect.sec = 0; 2496 #endif /* CONFIG_SME */ 2497 2498 wpa_msg(wpa_s, MSG_INFO, "Associated with " MACSTR, MAC2STR(bssid)); 2499 if (wpa_s->current_ssid) { 2500 /* When using scanning (ap_scan=1), SIM PC/SC interface can be 2501 * initialized before association, but for other modes, 2502 * initialize PC/SC here, if the current configuration needs 2503 * smartcard or SIM/USIM. */ 2504 wpa_supplicant_scard_init(wpa_s, wpa_s->current_ssid); 2505 } 2506 wpa_sm_notify_assoc(wpa_s->wpa, bssid); 2507 if (wpa_s->l2) 2508 l2_packet_notify_auth_start(wpa_s->l2); 2509 2510 already_authorized = data && data->assoc_info.authorized; 2511 2512 /* 2513 * Set portEnabled first to FALSE in order to get EAP state machine out 2514 * of the SUCCESS state and eapSuccess cleared. Without this, EAPOL PAE 2515 * state machine may transit to AUTHENTICATING state based on obsolete 2516 * eapSuccess and then trigger BE_AUTH to SUCCESS and PAE to 2517 * AUTHENTICATED without ever giving chance to EAP state machine to 2518 * reset the state. 2519 */ 2520 if (!ft_completed && !already_authorized) { 2521 eapol_sm_notify_portEnabled(wpa_s->eapol, FALSE); 2522 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 2523 } 2524 if (wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt) || ft_completed || 2525 already_authorized) 2526 eapol_sm_notify_eap_success(wpa_s->eapol, FALSE); 2527 /* 802.1X::portControl = Auto */ 2528 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); 2529 wpa_s->eapol_received = 0; 2530 if (wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 2531 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE || 2532 (wpa_s->current_ssid && 2533 wpa_s->current_ssid->mode == IEEE80211_MODE_IBSS)) { 2534 if (wpa_s->current_ssid && 2535 wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE && 2536 (wpa_s->drv_flags & 2537 WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) { 2538 /* 2539 * Set the key after having received joined-IBSS event 2540 * from the driver. 2541 */ 2542 wpa_supplicant_set_wpa_none_key(wpa_s, 2543 wpa_s->current_ssid); 2544 } 2545 wpa_supplicant_cancel_auth_timeout(wpa_s); 2546 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 2547 } else if (!ft_completed) { 2548 /* Timeout for receiving the first EAPOL packet */ 2549 wpa_supplicant_req_auth_timeout(wpa_s, 10, 0); 2550 } 2551 wpa_supplicant_cancel_scan(wpa_s); 2552 2553 if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 2554 wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) { 2555 /* 2556 * We are done; the driver will take care of RSN 4-way 2557 * handshake. 2558 */ 2559 wpa_supplicant_cancel_auth_timeout(wpa_s); 2560 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 2561 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 2562 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 2563 } else if ((wpa_s->drv_flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE) && 2564 wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt)) { 2565 /* 2566 * The driver will take care of RSN 4-way handshake, so we need 2567 * to allow EAPOL supplicant to complete its work without 2568 * waiting for WPA supplicant. 2569 */ 2570 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 2571 } else if (ft_completed) { 2572 /* 2573 * FT protocol completed - make sure EAPOL state machine ends 2574 * up in authenticated. 2575 */ 2576 wpa_supplicant_cancel_auth_timeout(wpa_s); 2577 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 2578 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 2579 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 2580 } 2581 2582 wpa_s->last_eapol_matches_bssid = 0; 2583 2584 if (wpa_s->pending_eapol_rx) { 2585 struct os_reltime now, age; 2586 os_get_reltime(&now); 2587 os_reltime_sub(&now, &wpa_s->pending_eapol_rx_time, &age); 2588 if (age.sec == 0 && age.usec < 200000 && 2589 os_memcmp(wpa_s->pending_eapol_rx_src, bssid, ETH_ALEN) == 2590 0) { 2591 wpa_dbg(wpa_s, MSG_DEBUG, "Process pending EAPOL " 2592 "frame that was received just before " 2593 "association notification"); 2594 wpa_supplicant_rx_eapol( 2595 wpa_s, wpa_s->pending_eapol_rx_src, 2596 wpabuf_head(wpa_s->pending_eapol_rx), 2597 wpabuf_len(wpa_s->pending_eapol_rx)); 2598 } 2599 wpabuf_free(wpa_s->pending_eapol_rx); 2600 wpa_s->pending_eapol_rx = NULL; 2601 } 2602 2603 if ((wpa_s->key_mgmt == WPA_KEY_MGMT_NONE || 2604 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) && 2605 wpa_s->current_ssid && 2606 (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC_DONE)) { 2607 /* Set static WEP keys again */ 2608 wpa_set_wep_keys(wpa_s, wpa_s->current_ssid); 2609 } 2610 2611 #ifdef CONFIG_IBSS_RSN 2612 if (wpa_s->current_ssid && 2613 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 2614 wpa_s->key_mgmt != WPA_KEY_MGMT_NONE && 2615 wpa_s->key_mgmt != WPA_KEY_MGMT_WPA_NONE && 2616 wpa_s->ibss_rsn == NULL) { 2617 wpa_s->ibss_rsn = ibss_rsn_init(wpa_s, wpa_s->current_ssid); 2618 if (!wpa_s->ibss_rsn) { 2619 wpa_msg(wpa_s, MSG_INFO, "Failed to init IBSS RSN"); 2620 wpa_supplicant_deauthenticate( 2621 wpa_s, WLAN_REASON_DEAUTH_LEAVING); 2622 return; 2623 } 2624 2625 ibss_rsn_set_psk(wpa_s->ibss_rsn, wpa_s->current_ssid->psk); 2626 } 2627 #endif /* CONFIG_IBSS_RSN */ 2628 2629 wpas_wps_notify_assoc(wpa_s, bssid); 2630 2631 if (data) { 2632 wmm_ac_notify_assoc(wpa_s, data->assoc_info.resp_ies, 2633 data->assoc_info.resp_ies_len, 2634 &data->assoc_info.wmm_params); 2635 2636 if (wpa_s->reassoc_same_bss) 2637 wmm_ac_restore_tspecs(wpa_s); 2638 } 2639 } 2640 2641 2642 static int disconnect_reason_recoverable(u16 reason_code) 2643 { 2644 return reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY || 2645 reason_code == WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA || 2646 reason_code == WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA; 2647 } 2648 2649 2650 static void wpa_supplicant_event_disassoc(struct wpa_supplicant *wpa_s, 2651 u16 reason_code, 2652 int locally_generated) 2653 { 2654 const u8 *bssid; 2655 2656 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 2657 /* 2658 * At least Host AP driver and a Prism3 card seemed to be 2659 * generating streams of disconnected events when configuring 2660 * IBSS for WPA-None. Ignore them for now. 2661 */ 2662 return; 2663 } 2664 2665 bssid = wpa_s->bssid; 2666 if (is_zero_ether_addr(bssid)) 2667 bssid = wpa_s->pending_bssid; 2668 2669 if (!is_zero_ether_addr(bssid) || 2670 wpa_s->wpa_state >= WPA_AUTHENTICATING) { 2671 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid=" MACSTR 2672 " reason=%d%s", 2673 MAC2STR(bssid), reason_code, 2674 locally_generated ? " locally_generated=1" : ""); 2675 } 2676 } 2677 2678 2679 static int could_be_psk_mismatch(struct wpa_supplicant *wpa_s, u16 reason_code, 2680 int locally_generated) 2681 { 2682 if (wpa_s->wpa_state != WPA_4WAY_HANDSHAKE || 2683 !wpa_key_mgmt_wpa_psk(wpa_s->key_mgmt)) 2684 return 0; /* Not in 4-way handshake with PSK */ 2685 2686 /* 2687 * It looks like connection was lost while trying to go through PSK 2688 * 4-way handshake. Filter out known disconnection cases that are caused 2689 * by something else than PSK mismatch to avoid confusing reports. 2690 */ 2691 2692 if (locally_generated) { 2693 if (reason_code == WLAN_REASON_IE_IN_4WAY_DIFFERS) 2694 return 0; 2695 } 2696 2697 return 1; 2698 } 2699 2700 2701 static void wpa_supplicant_event_disassoc_finish(struct wpa_supplicant *wpa_s, 2702 u16 reason_code, 2703 int locally_generated) 2704 { 2705 const u8 *bssid; 2706 int authenticating; 2707 u8 prev_pending_bssid[ETH_ALEN]; 2708 struct wpa_bss *fast_reconnect = NULL; 2709 struct wpa_ssid *fast_reconnect_ssid = NULL; 2710 struct wpa_ssid *last_ssid; 2711 struct wpa_bss *curr = NULL; 2712 2713 authenticating = wpa_s->wpa_state == WPA_AUTHENTICATING; 2714 os_memcpy(prev_pending_bssid, wpa_s->pending_bssid, ETH_ALEN); 2715 2716 if (wpa_s->key_mgmt == WPA_KEY_MGMT_WPA_NONE) { 2717 /* 2718 * At least Host AP driver and a Prism3 card seemed to be 2719 * generating streams of disconnected events when configuring 2720 * IBSS for WPA-None. Ignore them for now. 2721 */ 2722 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - ignore in " 2723 "IBSS/WPA-None mode"); 2724 return; 2725 } 2726 2727 if (!wpa_s->disconnected && wpa_s->wpa_state >= WPA_AUTHENTICATING && 2728 reason_code == WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY && 2729 locally_generated) 2730 /* 2731 * Remove the inactive AP (which is probably out of range) from 2732 * the BSS list after marking disassociation. In particular 2733 * mac80211-based drivers use the 2734 * WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY reason code in 2735 * locally generated disconnection events for cases where the 2736 * AP does not reply anymore. 2737 */ 2738 curr = wpa_s->current_bss; 2739 2740 if (could_be_psk_mismatch(wpa_s, reason_code, locally_generated)) { 2741 wpa_msg(wpa_s, MSG_INFO, "WPA: 4-Way Handshake failed - " 2742 "pre-shared key may be incorrect"); 2743 if (wpas_p2p_4way_hs_failed(wpa_s) > 0) 2744 return; /* P2P group removed */ 2745 wpas_auth_failed(wpa_s, "WRONG_KEY"); 2746 } 2747 if (!wpa_s->disconnected && 2748 (!wpa_s->auto_reconnect_disabled || 2749 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS || 2750 wpas_wps_searching(wpa_s) || 2751 wpas_wps_reenable_networks_pending(wpa_s))) { 2752 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect enabled: try to " 2753 "reconnect (wps=%d/%d wpa_state=%d)", 2754 wpa_s->key_mgmt == WPA_KEY_MGMT_WPS, 2755 wpas_wps_searching(wpa_s), 2756 wpa_s->wpa_state); 2757 if (wpa_s->wpa_state == WPA_COMPLETED && 2758 wpa_s->current_ssid && 2759 wpa_s->current_ssid->mode == WPAS_MODE_INFRA && 2760 !locally_generated && 2761 disconnect_reason_recoverable(reason_code)) { 2762 /* 2763 * It looks like the AP has dropped association with 2764 * us, but could allow us to get back in. Try to 2765 * reconnect to the same BSS without full scan to save 2766 * time for some common cases. 2767 */ 2768 fast_reconnect = wpa_s->current_bss; 2769 fast_reconnect_ssid = wpa_s->current_ssid; 2770 } else if (wpa_s->wpa_state >= WPA_ASSOCIATING) 2771 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2772 else 2773 wpa_dbg(wpa_s, MSG_DEBUG, "Do not request new " 2774 "immediate scan"); 2775 } else { 2776 wpa_dbg(wpa_s, MSG_DEBUG, "Auto connect disabled: do not " 2777 "try to re-connect"); 2778 wpa_s->reassociate = 0; 2779 wpa_s->disconnected = 1; 2780 if (!wpa_s->pno) 2781 wpa_supplicant_cancel_sched_scan(wpa_s); 2782 } 2783 bssid = wpa_s->bssid; 2784 if (is_zero_ether_addr(bssid)) 2785 bssid = wpa_s->pending_bssid; 2786 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) 2787 wpas_connection_failed(wpa_s, bssid); 2788 wpa_sm_notify_disassoc(wpa_s->wpa); 2789 if (locally_generated) 2790 wpa_s->disconnect_reason = -reason_code; 2791 else 2792 wpa_s->disconnect_reason = reason_code; 2793 wpas_notify_disconnect_reason(wpa_s); 2794 if (wpa_supplicant_dynamic_keys(wpa_s)) { 2795 wpa_dbg(wpa_s, MSG_DEBUG, "Disconnect event - remove keys"); 2796 wpa_clear_keys(wpa_s, wpa_s->bssid); 2797 } 2798 last_ssid = wpa_s->current_ssid; 2799 wpa_supplicant_mark_disassoc(wpa_s); 2800 2801 if (curr) 2802 wpa_bss_remove(wpa_s, curr, "Connection to AP lost"); 2803 2804 if (authenticating && (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) { 2805 sme_disassoc_while_authenticating(wpa_s, prev_pending_bssid); 2806 wpa_s->current_ssid = last_ssid; 2807 } 2808 2809 if (fast_reconnect && 2810 !wpas_network_disabled(wpa_s, fast_reconnect_ssid) && 2811 !disallowed_bssid(wpa_s, fast_reconnect->bssid) && 2812 !disallowed_ssid(wpa_s, fast_reconnect->ssid, 2813 fast_reconnect->ssid_len) && 2814 !wpas_temp_disabled(wpa_s, fast_reconnect_ssid) && 2815 !wpa_is_bss_tmp_disallowed(wpa_s, fast_reconnect->bssid)) { 2816 #ifndef CONFIG_NO_SCAN_PROCESSING 2817 wpa_dbg(wpa_s, MSG_DEBUG, "Try to reconnect to the same BSS"); 2818 if (wpa_supplicant_connect(wpa_s, fast_reconnect, 2819 fast_reconnect_ssid) < 0) { 2820 /* Recover through full scan */ 2821 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2822 } 2823 #endif /* CONFIG_NO_SCAN_PROCESSING */ 2824 } else if (fast_reconnect) { 2825 /* 2826 * Could not reconnect to the same BSS due to network being 2827 * disabled. Use a new scan to match the alternative behavior 2828 * above, i.e., to continue automatic reconnection attempt in a 2829 * way that enforces disabled network rules. 2830 */ 2831 wpa_supplicant_req_scan(wpa_s, 0, 100000); 2832 } 2833 } 2834 2835 2836 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2837 void wpa_supplicant_delayed_mic_error_report(void *eloop_ctx, void *sock_ctx) 2838 { 2839 struct wpa_supplicant *wpa_s = eloop_ctx; 2840 2841 if (!wpa_s->pending_mic_error_report) 2842 return; 2843 2844 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Sending pending MIC error report"); 2845 wpa_sm_key_request(wpa_s->wpa, 1, wpa_s->pending_mic_error_pairwise); 2846 wpa_s->pending_mic_error_report = 0; 2847 } 2848 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2849 2850 2851 static void 2852 wpa_supplicant_event_michael_mic_failure(struct wpa_supplicant *wpa_s, 2853 union wpa_event_data *data) 2854 { 2855 int pairwise; 2856 struct os_reltime t; 2857 2858 wpa_msg(wpa_s, MSG_WARNING, "Michael MIC failure detected"); 2859 pairwise = (data && data->michael_mic_failure.unicast); 2860 os_get_reltime(&t); 2861 if ((wpa_s->last_michael_mic_error.sec && 2862 !os_reltime_expired(&t, &wpa_s->last_michael_mic_error, 60)) || 2863 wpa_s->pending_mic_error_report) { 2864 if (wpa_s->pending_mic_error_report) { 2865 /* 2866 * Send the pending MIC error report immediately since 2867 * we are going to start countermeasures and AP better 2868 * do the same. 2869 */ 2870 wpa_sm_key_request(wpa_s->wpa, 1, 2871 wpa_s->pending_mic_error_pairwise); 2872 } 2873 2874 /* Send the new MIC error report immediately since we are going 2875 * to start countermeasures and AP better do the same. 2876 */ 2877 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2878 2879 /* initialize countermeasures */ 2880 wpa_s->countermeasures = 1; 2881 2882 wpa_blacklist_add(wpa_s, wpa_s->bssid); 2883 2884 wpa_msg(wpa_s, MSG_WARNING, "TKIP countermeasures started"); 2885 2886 /* 2887 * Need to wait for completion of request frame. We do not get 2888 * any callback for the message completion, so just wait a 2889 * short while and hope for the best. */ 2890 os_sleep(0, 10000); 2891 2892 wpa_drv_set_countermeasures(wpa_s, 1); 2893 wpa_supplicant_deauthenticate(wpa_s, 2894 WLAN_REASON_MICHAEL_MIC_FAILURE); 2895 eloop_cancel_timeout(wpa_supplicant_stop_countermeasures, 2896 wpa_s, NULL); 2897 eloop_register_timeout(60, 0, 2898 wpa_supplicant_stop_countermeasures, 2899 wpa_s, NULL); 2900 /* TODO: mark the AP rejected for 60 second. STA is 2901 * allowed to associate with another AP.. */ 2902 } else { 2903 #ifdef CONFIG_DELAYED_MIC_ERROR_REPORT 2904 if (wpa_s->mic_errors_seen) { 2905 /* 2906 * Reduce the effectiveness of Michael MIC error 2907 * reports as a means for attacking against TKIP if 2908 * more than one MIC failure is noticed with the same 2909 * PTK. We delay the transmission of the reports by a 2910 * random time between 0 and 60 seconds in order to 2911 * force the attacker wait 60 seconds before getting 2912 * the information on whether a frame resulted in a MIC 2913 * failure. 2914 */ 2915 u8 rval[4]; 2916 int sec; 2917 2918 if (os_get_random(rval, sizeof(rval)) < 0) 2919 sec = os_random() % 60; 2920 else 2921 sec = WPA_GET_BE32(rval) % 60; 2922 wpa_dbg(wpa_s, MSG_DEBUG, "WPA: Delay MIC error " 2923 "report %d seconds", sec); 2924 wpa_s->pending_mic_error_report = 1; 2925 wpa_s->pending_mic_error_pairwise = pairwise; 2926 eloop_cancel_timeout( 2927 wpa_supplicant_delayed_mic_error_report, 2928 wpa_s, NULL); 2929 eloop_register_timeout( 2930 sec, os_random() % 1000000, 2931 wpa_supplicant_delayed_mic_error_report, 2932 wpa_s, NULL); 2933 } else { 2934 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2935 } 2936 #else /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2937 wpa_sm_key_request(wpa_s->wpa, 1, pairwise); 2938 #endif /* CONFIG_DELAYED_MIC_ERROR_REPORT */ 2939 } 2940 wpa_s->last_michael_mic_error = t; 2941 wpa_s->mic_errors_seen++; 2942 } 2943 2944 2945 #ifdef CONFIG_TERMINATE_ONLASTIF 2946 static int any_interfaces(struct wpa_supplicant *head) 2947 { 2948 struct wpa_supplicant *wpa_s; 2949 2950 for (wpa_s = head; wpa_s != NULL; wpa_s = wpa_s->next) 2951 if (!wpa_s->interface_removed) 2952 return 1; 2953 return 0; 2954 } 2955 #endif /* CONFIG_TERMINATE_ONLASTIF */ 2956 2957 2958 static void 2959 wpa_supplicant_event_interface_status(struct wpa_supplicant *wpa_s, 2960 union wpa_event_data *data) 2961 { 2962 if (os_strcmp(wpa_s->ifname, data->interface_status.ifname) != 0) 2963 return; 2964 2965 switch (data->interface_status.ievent) { 2966 case EVENT_INTERFACE_ADDED: 2967 if (!wpa_s->interface_removed) 2968 break; 2969 wpa_s->interface_removed = 0; 2970 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was added"); 2971 if (wpa_supplicant_driver_init(wpa_s) < 0) { 2972 wpa_msg(wpa_s, MSG_INFO, "Failed to initialize the " 2973 "driver after interface was added"); 2974 } 2975 2976 #ifdef CONFIG_P2P 2977 if (!wpa_s->global->p2p && 2978 !wpa_s->global->p2p_disabled && 2979 !wpa_s->conf->p2p_disabled && 2980 (wpa_s->drv_flags & 2981 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE) && 2982 wpas_p2p_add_p2pdev_interface( 2983 wpa_s, wpa_s->global->params.conf_p2p_dev) < 0) { 2984 wpa_printf(MSG_INFO, 2985 "P2P: Failed to enable P2P Device interface"); 2986 /* Try to continue without. P2P will be disabled. */ 2987 } 2988 #endif /* CONFIG_P2P */ 2989 2990 break; 2991 case EVENT_INTERFACE_REMOVED: 2992 wpa_dbg(wpa_s, MSG_DEBUG, "Configured interface was removed"); 2993 wpa_s->interface_removed = 1; 2994 wpa_supplicant_mark_disassoc(wpa_s); 2995 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 2996 l2_packet_deinit(wpa_s->l2); 2997 wpa_s->l2 = NULL; 2998 2999 #ifdef CONFIG_P2P 3000 if (wpa_s->global->p2p && 3001 wpa_s->global->p2p_init_wpa_s->parent == wpa_s && 3002 (wpa_s->drv_flags & 3003 WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) { 3004 wpa_dbg(wpa_s, MSG_DEBUG, 3005 "Removing P2P Device interface"); 3006 wpa_supplicant_remove_iface( 3007 wpa_s->global, wpa_s->global->p2p_init_wpa_s, 3008 0); 3009 wpa_s->global->p2p_init_wpa_s = NULL; 3010 } 3011 #endif /* CONFIG_P2P */ 3012 3013 #ifdef CONFIG_MATCH_IFACE 3014 if (wpa_s->matched) { 3015 wpa_supplicant_remove_iface(wpa_s->global, wpa_s, 0); 3016 break; 3017 } 3018 #endif /* CONFIG_MATCH_IFACE */ 3019 3020 #ifdef CONFIG_TERMINATE_ONLASTIF 3021 /* check if last interface */ 3022 if (!any_interfaces(wpa_s->global->ifaces)) 3023 eloop_terminate(); 3024 #endif /* CONFIG_TERMINATE_ONLASTIF */ 3025 break; 3026 } 3027 } 3028 3029 3030 #ifdef CONFIG_PEERKEY 3031 static void 3032 wpa_supplicant_event_stkstart(struct wpa_supplicant *wpa_s, 3033 union wpa_event_data *data) 3034 { 3035 if (data == NULL) 3036 return; 3037 wpa_sm_stkstart(wpa_s->wpa, data->stkstart.peer); 3038 } 3039 #endif /* CONFIG_PEERKEY */ 3040 3041 3042 #ifdef CONFIG_TDLS 3043 static void wpa_supplicant_event_tdls(struct wpa_supplicant *wpa_s, 3044 union wpa_event_data *data) 3045 { 3046 if (data == NULL) 3047 return; 3048 switch (data->tdls.oper) { 3049 case TDLS_REQUEST_SETUP: 3050 wpa_tdls_remove(wpa_s->wpa, data->tdls.peer); 3051 if (wpa_tdls_is_external_setup(wpa_s->wpa)) 3052 wpa_tdls_start(wpa_s->wpa, data->tdls.peer); 3053 else 3054 wpa_drv_tdls_oper(wpa_s, TDLS_SETUP, data->tdls.peer); 3055 break; 3056 case TDLS_REQUEST_TEARDOWN: 3057 if (wpa_tdls_is_external_setup(wpa_s->wpa)) 3058 wpa_tdls_teardown_link(wpa_s->wpa, data->tdls.peer, 3059 data->tdls.reason_code); 3060 else 3061 wpa_drv_tdls_oper(wpa_s, TDLS_TEARDOWN, 3062 data->tdls.peer); 3063 break; 3064 case TDLS_REQUEST_DISCOVER: 3065 wpa_tdls_send_discovery_request(wpa_s->wpa, 3066 data->tdls.peer); 3067 break; 3068 } 3069 } 3070 #endif /* CONFIG_TDLS */ 3071 3072 3073 #ifdef CONFIG_WNM 3074 static void wpa_supplicant_event_wnm(struct wpa_supplicant *wpa_s, 3075 union wpa_event_data *data) 3076 { 3077 if (data == NULL) 3078 return; 3079 switch (data->wnm.oper) { 3080 case WNM_OPER_SLEEP: 3081 wpa_printf(MSG_DEBUG, "Start sending WNM-Sleep Request " 3082 "(action=%d, intval=%d)", 3083 data->wnm.sleep_action, data->wnm.sleep_intval); 3084 ieee802_11_send_wnmsleep_req(wpa_s, data->wnm.sleep_action, 3085 data->wnm.sleep_intval, NULL); 3086 break; 3087 } 3088 } 3089 #endif /* CONFIG_WNM */ 3090 3091 3092 #ifdef CONFIG_IEEE80211R 3093 static void 3094 wpa_supplicant_event_ft_response(struct wpa_supplicant *wpa_s, 3095 union wpa_event_data *data) 3096 { 3097 if (data == NULL) 3098 return; 3099 3100 if (wpa_ft_process_response(wpa_s->wpa, data->ft_ies.ies, 3101 data->ft_ies.ies_len, 3102 data->ft_ies.ft_action, 3103 data->ft_ies.target_ap, 3104 data->ft_ies.ric_ies, 3105 data->ft_ies.ric_ies_len) < 0) { 3106 /* TODO: prevent MLME/driver from trying to associate? */ 3107 } 3108 } 3109 #endif /* CONFIG_IEEE80211R */ 3110 3111 3112 #ifdef CONFIG_IBSS_RSN 3113 static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s, 3114 union wpa_event_data *data) 3115 { 3116 struct wpa_ssid *ssid; 3117 if (wpa_s->wpa_state < WPA_ASSOCIATED) 3118 return; 3119 if (data == NULL) 3120 return; 3121 ssid = wpa_s->current_ssid; 3122 if (ssid == NULL) 3123 return; 3124 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 3125 return; 3126 3127 ibss_rsn_start(wpa_s->ibss_rsn, data->ibss_rsn_start.peer); 3128 } 3129 3130 3131 static void wpa_supplicant_event_ibss_auth(struct wpa_supplicant *wpa_s, 3132 union wpa_event_data *data) 3133 { 3134 struct wpa_ssid *ssid = wpa_s->current_ssid; 3135 3136 if (ssid == NULL) 3137 return; 3138 3139 /* check if the ssid is correctly configured as IBSS/RSN */ 3140 if (ssid->mode != WPAS_MODE_IBSS || !wpa_key_mgmt_wpa(ssid->key_mgmt)) 3141 return; 3142 3143 ibss_rsn_handle_auth(wpa_s->ibss_rsn, data->rx_mgmt.frame, 3144 data->rx_mgmt.frame_len); 3145 } 3146 #endif /* CONFIG_IBSS_RSN */ 3147 3148 3149 #ifdef CONFIG_IEEE80211R 3150 static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data, 3151 size_t len) 3152 { 3153 const u8 *sta_addr, *target_ap_addr; 3154 u16 status; 3155 3156 wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len); 3157 if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME)) 3158 return; /* only SME case supported for now */ 3159 if (len < 1 + 2 * ETH_ALEN + 2) 3160 return; 3161 if (data[0] != 2) 3162 return; /* Only FT Action Response is supported for now */ 3163 sta_addr = data + 1; 3164 target_ap_addr = data + 1 + ETH_ALEN; 3165 status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN); 3166 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Received FT Action Response: STA " 3167 MACSTR " TargetAP " MACSTR " status %u", 3168 MAC2STR(sta_addr), MAC2STR(target_ap_addr), status); 3169 3170 if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) { 3171 wpa_dbg(wpa_s, MSG_DEBUG, "FT: Foreign STA Address " MACSTR 3172 " in FT Action Response", MAC2STR(sta_addr)); 3173 return; 3174 } 3175 3176 if (status) { 3177 wpa_dbg(wpa_s, MSG_DEBUG, "FT: FT Action Response indicates " 3178 "failure (status code %d)", status); 3179 /* TODO: report error to FT code(?) */ 3180 return; 3181 } 3182 3183 if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2, 3184 len - (1 + 2 * ETH_ALEN + 2), 1, 3185 target_ap_addr, NULL, 0) < 0) 3186 return; 3187 3188 #ifdef CONFIG_SME 3189 { 3190 struct wpa_bss *bss; 3191 bss = wpa_bss_get_bssid(wpa_s, target_ap_addr); 3192 if (bss) 3193 wpa_s->sme.freq = bss->freq; 3194 wpa_s->sme.auth_alg = WPA_AUTH_ALG_FT; 3195 sme_associate(wpa_s, WPAS_MODE_INFRA, target_ap_addr, 3196 WLAN_AUTH_FT); 3197 } 3198 #endif /* CONFIG_SME */ 3199 } 3200 #endif /* CONFIG_IEEE80211R */ 3201 3202 3203 static void wpa_supplicant_event_unprot_deauth(struct wpa_supplicant *wpa_s, 3204 struct unprot_deauth *e) 3205 { 3206 #ifdef CONFIG_IEEE80211W 3207 wpa_printf(MSG_DEBUG, "Unprotected Deauthentication frame " 3208 "dropped: " MACSTR " -> " MACSTR 3209 " (reason code %u)", 3210 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 3211 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 3212 #endif /* CONFIG_IEEE80211W */ 3213 } 3214 3215 3216 static void wpa_supplicant_event_unprot_disassoc(struct wpa_supplicant *wpa_s, 3217 struct unprot_disassoc *e) 3218 { 3219 #ifdef CONFIG_IEEE80211W 3220 wpa_printf(MSG_DEBUG, "Unprotected Disassociation frame " 3221 "dropped: " MACSTR " -> " MACSTR 3222 " (reason code %u)", 3223 MAC2STR(e->sa), MAC2STR(e->da), e->reason_code); 3224 sme_event_unprot_disconnect(wpa_s, e->sa, e->da, e->reason_code); 3225 #endif /* CONFIG_IEEE80211W */ 3226 } 3227 3228 3229 static void wpas_event_disconnect(struct wpa_supplicant *wpa_s, const u8 *addr, 3230 u16 reason_code, int locally_generated, 3231 const u8 *ie, size_t ie_len, int deauth) 3232 { 3233 #ifdef CONFIG_AP 3234 if (wpa_s->ap_iface && addr) { 3235 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], addr); 3236 return; 3237 } 3238 3239 if (wpa_s->ap_iface) { 3240 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore deauth event in AP mode"); 3241 return; 3242 } 3243 #endif /* CONFIG_AP */ 3244 3245 if (!locally_generated) 3246 wpa_s->own_disconnect_req = 0; 3247 3248 wpa_supplicant_event_disassoc(wpa_s, reason_code, locally_generated); 3249 3250 if (((reason_code == WLAN_REASON_IEEE_802_1X_AUTH_FAILED || 3251 ((wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || 3252 (wpa_s->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA)) && 3253 eapol_sm_failed(wpa_s->eapol))) && 3254 !wpa_s->eap_expected_failure)) 3255 wpas_auth_failed(wpa_s, "AUTH_FAILED"); 3256 3257 #ifdef CONFIG_P2P 3258 if (deauth && reason_code > 0) { 3259 if (wpas_p2p_deauth_notif(wpa_s, addr, reason_code, ie, ie_len, 3260 locally_generated) > 0) { 3261 /* 3262 * The interface was removed, so cannot continue 3263 * processing any additional operations after this. 3264 */ 3265 return; 3266 } 3267 } 3268 #endif /* CONFIG_P2P */ 3269 3270 wpa_supplicant_event_disassoc_finish(wpa_s, reason_code, 3271 locally_generated); 3272 } 3273 3274 3275 static void wpas_event_disassoc(struct wpa_supplicant *wpa_s, 3276 struct disassoc_info *info) 3277 { 3278 u16 reason_code = 0; 3279 int locally_generated = 0; 3280 const u8 *addr = NULL; 3281 const u8 *ie = NULL; 3282 size_t ie_len = 0; 3283 3284 wpa_dbg(wpa_s, MSG_DEBUG, "Disassociation notification"); 3285 3286 if (info) { 3287 addr = info->addr; 3288 ie = info->ie; 3289 ie_len = info->ie_len; 3290 reason_code = info->reason_code; 3291 locally_generated = info->locally_generated; 3292 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", reason_code, 3293 locally_generated ? " (locally generated)" : ""); 3294 if (addr) 3295 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 3296 MAC2STR(addr)); 3297 wpa_hexdump(MSG_DEBUG, "Disassociation frame IE(s)", 3298 ie, ie_len); 3299 } 3300 3301 #ifdef CONFIG_AP 3302 if (wpa_s->ap_iface && info && info->addr) { 3303 hostapd_notif_disassoc(wpa_s->ap_iface->bss[0], info->addr); 3304 return; 3305 } 3306 3307 if (wpa_s->ap_iface) { 3308 wpa_dbg(wpa_s, MSG_DEBUG, "Ignore disassoc event in AP mode"); 3309 return; 3310 } 3311 #endif /* CONFIG_AP */ 3312 3313 #ifdef CONFIG_P2P 3314 if (info) { 3315 wpas_p2p_disassoc_notif( 3316 wpa_s, info->addr, reason_code, info->ie, info->ie_len, 3317 locally_generated); 3318 } 3319 #endif /* CONFIG_P2P */ 3320 3321 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 3322 sme_event_disassoc(wpa_s, info); 3323 3324 wpas_event_disconnect(wpa_s, addr, reason_code, locally_generated, 3325 ie, ie_len, 0); 3326 } 3327 3328 3329 static void wpas_event_deauth(struct wpa_supplicant *wpa_s, 3330 struct deauth_info *info) 3331 { 3332 u16 reason_code = 0; 3333 int locally_generated = 0; 3334 const u8 *addr = NULL; 3335 const u8 *ie = NULL; 3336 size_t ie_len = 0; 3337 3338 wpa_dbg(wpa_s, MSG_DEBUG, "Deauthentication notification"); 3339 3340 if (info) { 3341 addr = info->addr; 3342 ie = info->ie; 3343 ie_len = info->ie_len; 3344 reason_code = info->reason_code; 3345 locally_generated = info->locally_generated; 3346 wpa_dbg(wpa_s, MSG_DEBUG, " * reason %u%s", 3347 reason_code, 3348 locally_generated ? " (locally generated)" : ""); 3349 if (addr) { 3350 wpa_dbg(wpa_s, MSG_DEBUG, " * address " MACSTR, 3351 MAC2STR(addr)); 3352 } 3353 wpa_hexdump(MSG_DEBUG, "Deauthentication frame IE(s)", 3354 ie, ie_len); 3355 } 3356 3357 wpa_reset_ft_completed(wpa_s->wpa); 3358 3359 wpas_event_disconnect(wpa_s, addr, reason_code, 3360 locally_generated, ie, ie_len, 1); 3361 } 3362 3363 3364 static const char * reg_init_str(enum reg_change_initiator init) 3365 { 3366 switch (init) { 3367 case REGDOM_SET_BY_CORE: 3368 return "CORE"; 3369 case REGDOM_SET_BY_USER: 3370 return "USER"; 3371 case REGDOM_SET_BY_DRIVER: 3372 return "DRIVER"; 3373 case REGDOM_SET_BY_COUNTRY_IE: 3374 return "COUNTRY_IE"; 3375 case REGDOM_BEACON_HINT: 3376 return "BEACON_HINT"; 3377 } 3378 return "?"; 3379 } 3380 3381 3382 static const char * reg_type_str(enum reg_type type) 3383 { 3384 switch (type) { 3385 case REGDOM_TYPE_UNKNOWN: 3386 return "UNKNOWN"; 3387 case REGDOM_TYPE_COUNTRY: 3388 return "COUNTRY"; 3389 case REGDOM_TYPE_WORLD: 3390 return "WORLD"; 3391 case REGDOM_TYPE_CUSTOM_WORLD: 3392 return "CUSTOM_WORLD"; 3393 case REGDOM_TYPE_INTERSECTION: 3394 return "INTERSECTION"; 3395 } 3396 return "?"; 3397 } 3398 3399 3400 static void wpa_supplicant_update_channel_list( 3401 struct wpa_supplicant *wpa_s, struct channel_list_changed *info) 3402 { 3403 struct wpa_supplicant *ifs; 3404 3405 /* 3406 * To allow backwards compatibility with higher level layers that 3407 * assumed the REGDOM_CHANGE event is sent over the initially added 3408 * interface. Find the highest parent of this interface and use it to 3409 * send the event. 3410 */ 3411 for (ifs = wpa_s; ifs->parent && ifs != ifs->parent; ifs = ifs->parent) 3412 ; 3413 3414 wpa_msg(ifs, MSG_INFO, WPA_EVENT_REGDOM_CHANGE "init=%s type=%s%s%s", 3415 reg_init_str(info->initiator), reg_type_str(info->type), 3416 info->alpha2[0] ? " alpha2=" : "", 3417 info->alpha2[0] ? info->alpha2 : ""); 3418 3419 if (wpa_s->drv_priv == NULL) 3420 return; /* Ignore event during drv initialization */ 3421 3422 dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant, 3423 radio_list) { 3424 wpa_printf(MSG_DEBUG, "%s: Updating hw mode", 3425 ifs->ifname); 3426 free_hw_features(ifs); 3427 ifs->hw.modes = wpa_drv_get_hw_feature_data( 3428 ifs, &ifs->hw.num_modes, &ifs->hw.flags); 3429 3430 /* Restart PNO/sched_scan with updated channel list */ 3431 if (ifs->pno) { 3432 wpas_stop_pno(ifs); 3433 wpas_start_pno(ifs); 3434 } else if (ifs->sched_scanning && !ifs->pno_sched_pending) { 3435 wpa_dbg(ifs, MSG_DEBUG, 3436 "Channel list changed - restart sched_scan"); 3437 wpas_scan_restart_sched_scan(ifs); 3438 } 3439 } 3440 3441 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_DRIVER); 3442 } 3443 3444 3445 static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s, 3446 const u8 *frame, size_t len, int freq, 3447 int rssi) 3448 { 3449 const struct ieee80211_mgmt *mgmt; 3450 const u8 *payload; 3451 size_t plen; 3452 u8 category; 3453 3454 if (len < IEEE80211_HDRLEN + 2) 3455 return; 3456 3457 mgmt = (const struct ieee80211_mgmt *) frame; 3458 payload = frame + IEEE80211_HDRLEN; 3459 category = *payload++; 3460 plen = len - IEEE80211_HDRLEN - 1; 3461 3462 wpa_dbg(wpa_s, MSG_DEBUG, "Received Action frame: SA=" MACSTR 3463 " Category=%u DataLen=%d freq=%d MHz", 3464 MAC2STR(mgmt->sa), category, (int) plen, freq); 3465 3466 if (category == WLAN_ACTION_WMM) { 3467 wmm_ac_rx_action(wpa_s, mgmt->da, mgmt->sa, payload, plen); 3468 return; 3469 } 3470 3471 #ifdef CONFIG_IEEE80211R 3472 if (category == WLAN_ACTION_FT) { 3473 ft_rx_action(wpa_s, payload, plen); 3474 return; 3475 } 3476 #endif /* CONFIG_IEEE80211R */ 3477 3478 #ifdef CONFIG_IEEE80211W 3479 #ifdef CONFIG_SME 3480 if (category == WLAN_ACTION_SA_QUERY) { 3481 sme_sa_query_rx(wpa_s, mgmt->sa, payload, plen); 3482 return; 3483 } 3484 #endif /* CONFIG_SME */ 3485 #endif /* CONFIG_IEEE80211W */ 3486 3487 #ifdef CONFIG_WNM 3488 if (mgmt->u.action.category == WLAN_ACTION_WNM) { 3489 ieee802_11_rx_wnm_action(wpa_s, mgmt, len); 3490 return; 3491 } 3492 #endif /* CONFIG_WNM */ 3493 3494 #ifdef CONFIG_GAS 3495 if ((mgmt->u.action.category == WLAN_ACTION_PUBLIC || 3496 mgmt->u.action.category == WLAN_ACTION_PROTECTED_DUAL) && 3497 gas_query_rx(wpa_s->gas, mgmt->da, mgmt->sa, mgmt->bssid, 3498 mgmt->u.action.category, 3499 payload, plen, freq) == 0) 3500 return; 3501 #endif /* CONFIG_GAS */ 3502 3503 #ifdef CONFIG_TDLS 3504 if (category == WLAN_ACTION_PUBLIC && plen >= 4 && 3505 payload[0] == WLAN_TDLS_DISCOVERY_RESPONSE) { 3506 wpa_dbg(wpa_s, MSG_DEBUG, 3507 "TDLS: Received Discovery Response from " MACSTR, 3508 MAC2STR(mgmt->sa)); 3509 return; 3510 } 3511 #endif /* CONFIG_TDLS */ 3512 3513 #ifdef CONFIG_INTERWORKING 3514 if (category == WLAN_ACTION_QOS && plen >= 1 && 3515 payload[0] == QOS_QOS_MAP_CONFIG) { 3516 const u8 *pos = payload + 1; 3517 size_t qlen = plen - 1; 3518 wpa_dbg(wpa_s, MSG_DEBUG, "Interworking: Received QoS Map Configure frame from " 3519 MACSTR, MAC2STR(mgmt->sa)); 3520 if (os_memcmp(mgmt->sa, wpa_s->bssid, ETH_ALEN) == 0 && 3521 qlen > 2 && pos[0] == WLAN_EID_QOS_MAP_SET && 3522 pos[1] <= qlen - 2 && pos[1] >= 16) 3523 wpas_qos_map_set(wpa_s, pos + 2, pos[1]); 3524 return; 3525 } 3526 #endif /* CONFIG_INTERWORKING */ 3527 3528 if (category == WLAN_ACTION_RADIO_MEASUREMENT && 3529 payload[0] == WLAN_RRM_RADIO_MEASUREMENT_REQUEST) { 3530 wpas_rrm_handle_radio_measurement_request(wpa_s, mgmt->sa, 3531 payload + 1, 3532 plen - 1); 3533 return; 3534 } 3535 3536 if (category == WLAN_ACTION_RADIO_MEASUREMENT && 3537 payload[0] == WLAN_RRM_NEIGHBOR_REPORT_RESPONSE) { 3538 wpas_rrm_process_neighbor_rep(wpa_s, payload + 1, plen - 1); 3539 return; 3540 } 3541 3542 if (category == WLAN_ACTION_RADIO_MEASUREMENT && 3543 payload[0] == WLAN_RRM_LINK_MEASUREMENT_REQUEST) { 3544 wpas_rrm_handle_link_measurement_request(wpa_s, mgmt->sa, 3545 payload + 1, plen - 1, 3546 rssi); 3547 return; 3548 } 3549 3550 #ifdef CONFIG_FST 3551 if (mgmt->u.action.category == WLAN_ACTION_FST && wpa_s->fst) { 3552 fst_rx_action(wpa_s->fst, mgmt, len); 3553 return; 3554 } 3555 #endif /* CONFIG_FST */ 3556 3557 wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid, 3558 category, payload, plen, freq); 3559 if (wpa_s->ifmsh) 3560 mesh_mpm_action_rx(wpa_s, mgmt, len); 3561 } 3562 3563 3564 static void wpa_supplicant_notify_avoid_freq(struct wpa_supplicant *wpa_s, 3565 union wpa_event_data *event) 3566 { 3567 struct wpa_freq_range_list *list; 3568 char *str = NULL; 3569 3570 list = &event->freq_range; 3571 3572 if (list->num) 3573 str = freq_range_list_str(list); 3574 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AVOID_FREQ "ranges=%s", 3575 str ? str : ""); 3576 3577 #ifdef CONFIG_P2P 3578 if (freq_range_list_parse(&wpa_s->global->p2p_go_avoid_freq, str)) { 3579 wpa_dbg(wpa_s, MSG_ERROR, "%s: Failed to parse freq range", 3580 __func__); 3581 } else { 3582 wpa_dbg(wpa_s, MSG_DEBUG, "P2P: Update channel list based on frequency avoid event"); 3583 3584 /* 3585 * The update channel flow will also take care of moving a GO 3586 * from the unsafe frequency if needed. 3587 */ 3588 wpas_p2p_update_channel_list(wpa_s, 3589 WPAS_P2P_CHANNEL_UPDATE_AVOID); 3590 } 3591 #endif /* CONFIG_P2P */ 3592 3593 os_free(str); 3594 } 3595 3596 3597 static void wpa_supplicant_event_assoc_auth(struct wpa_supplicant *wpa_s, 3598 union wpa_event_data *data) 3599 { 3600 wpa_dbg(wpa_s, MSG_DEBUG, 3601 "Connection authorized by device, previous state %d", 3602 wpa_s->wpa_state); 3603 if (wpa_s->wpa_state == WPA_ASSOCIATED) { 3604 wpa_supplicant_cancel_auth_timeout(wpa_s); 3605 wpa_supplicant_set_state(wpa_s, WPA_COMPLETED); 3606 eapol_sm_notify_portValid(wpa_s->eapol, TRUE); 3607 eapol_sm_notify_eap_success(wpa_s->eapol, TRUE); 3608 } 3609 wpa_sm_set_rx_replay_ctr(wpa_s->wpa, data->assoc_info.key_replay_ctr); 3610 wpa_sm_set_ptk_kck_kek(wpa_s->wpa, data->assoc_info.ptk_kck, 3611 data->assoc_info.ptk_kck_len, 3612 data->assoc_info.ptk_kek, 3613 data->assoc_info.ptk_kek_len); 3614 } 3615 3616 3617 void wpa_supplicant_event(void *ctx, enum wpa_event_type event, 3618 union wpa_event_data *data) 3619 { 3620 struct wpa_supplicant *wpa_s = ctx; 3621 char buf[100]; 3622 int resched; 3623 3624 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED && 3625 event != EVENT_INTERFACE_ENABLED && 3626 event != EVENT_INTERFACE_STATUS && 3627 event != EVENT_SCAN_RESULTS && 3628 event != EVENT_SCHED_SCAN_STOPPED) { 3629 wpa_dbg(wpa_s, MSG_DEBUG, 3630 "Ignore event %s (%d) while interface is disabled", 3631 event_to_string(event), event); 3632 return; 3633 } 3634 3635 #ifndef CONFIG_NO_STDOUT_DEBUG 3636 { 3637 int level = MSG_DEBUG; 3638 3639 if (event == EVENT_RX_MGMT && data->rx_mgmt.frame_len >= 24) { 3640 const struct ieee80211_hdr *hdr; 3641 u16 fc; 3642 hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame; 3643 fc = le_to_host16(hdr->frame_control); 3644 if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT && 3645 WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON) 3646 level = MSG_EXCESSIVE; 3647 } 3648 3649 wpa_dbg(wpa_s, level, "Event %s (%d) received", 3650 event_to_string(event), event); 3651 } 3652 #endif /* CONFIG_NO_STDOUT_DEBUG */ 3653 3654 switch (event) { 3655 case EVENT_AUTH: 3656 #ifdef CONFIG_FST 3657 if (!wpas_fst_update_mbie(wpa_s, data->auth.ies, 3658 data->auth.ies_len)) 3659 wpa_printf(MSG_DEBUG, 3660 "FST: MB IEs updated from auth IE"); 3661 #endif /* CONFIG_FST */ 3662 sme_event_auth(wpa_s, data); 3663 break; 3664 case EVENT_ASSOC: 3665 #ifdef CONFIG_TESTING_OPTIONS 3666 if (wpa_s->ignore_auth_resp) { 3667 wpa_printf(MSG_INFO, 3668 "EVENT_ASSOC - ignore_auth_resp active!"); 3669 break; 3670 } 3671 #endif /* CONFIG_TESTING_OPTIONS */ 3672 wpa_supplicant_event_assoc(wpa_s, data); 3673 if (data && data->assoc_info.authorized) 3674 wpa_supplicant_event_assoc_auth(wpa_s, data); 3675 if (data) { 3676 wpa_msg(wpa_s, MSG_INFO, 3677 WPA_EVENT_SUBNET_STATUS_UPDATE "status=%u", 3678 data->assoc_info.subnet_status); 3679 } 3680 break; 3681 case EVENT_DISASSOC: 3682 wpas_event_disassoc(wpa_s, 3683 data ? &data->disassoc_info : NULL); 3684 break; 3685 case EVENT_DEAUTH: 3686 #ifdef CONFIG_TESTING_OPTIONS 3687 if (wpa_s->ignore_auth_resp) { 3688 wpa_printf(MSG_INFO, 3689 "EVENT_DEAUTH - ignore_auth_resp active!"); 3690 break; 3691 } 3692 #endif /* CONFIG_TESTING_OPTIONS */ 3693 wpas_event_deauth(wpa_s, 3694 data ? &data->deauth_info : NULL); 3695 break; 3696 case EVENT_MICHAEL_MIC_FAILURE: 3697 wpa_supplicant_event_michael_mic_failure(wpa_s, data); 3698 break; 3699 #ifndef CONFIG_NO_SCAN_PROCESSING 3700 case EVENT_SCAN_STARTED: 3701 if (wpa_s->own_scan_requested || 3702 (data && !data->scan_info.external_scan)) { 3703 struct os_reltime diff; 3704 3705 os_get_reltime(&wpa_s->scan_start_time); 3706 os_reltime_sub(&wpa_s->scan_start_time, 3707 &wpa_s->scan_trigger_time, &diff); 3708 wpa_dbg(wpa_s, MSG_DEBUG, "Own scan request started a scan in %ld.%06ld seconds", 3709 diff.sec, diff.usec); 3710 wpa_s->own_scan_requested = 0; 3711 wpa_s->own_scan_running = 1; 3712 if (wpa_s->last_scan_req == MANUAL_SCAN_REQ && 3713 wpa_s->manual_scan_use_id) { 3714 wpa_msg_ctrl(wpa_s, MSG_INFO, 3715 WPA_EVENT_SCAN_STARTED "id=%u", 3716 wpa_s->manual_scan_id); 3717 } else { 3718 wpa_msg_ctrl(wpa_s, MSG_INFO, 3719 WPA_EVENT_SCAN_STARTED); 3720 } 3721 } else { 3722 wpa_dbg(wpa_s, MSG_DEBUG, "External program started a scan"); 3723 wpa_s->radio->external_scan_running = 1; 3724 wpa_msg_ctrl(wpa_s, MSG_INFO, WPA_EVENT_SCAN_STARTED); 3725 } 3726 break; 3727 case EVENT_SCAN_RESULTS: 3728 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 3729 wpa_s->scan_res_handler = NULL; 3730 wpa_s->own_scan_running = 0; 3731 wpa_s->radio->external_scan_running = 0; 3732 wpa_s->last_scan_req = NORMAL_SCAN_REQ; 3733 break; 3734 } 3735 3736 if (!(data && data->scan_info.external_scan) && 3737 os_reltime_initialized(&wpa_s->scan_start_time)) { 3738 struct os_reltime now, diff; 3739 os_get_reltime(&now); 3740 os_reltime_sub(&now, &wpa_s->scan_start_time, &diff); 3741 wpa_s->scan_start_time.sec = 0; 3742 wpa_s->scan_start_time.usec = 0; 3743 wpa_dbg(wpa_s, MSG_DEBUG, "Scan completed in %ld.%06ld seconds", 3744 diff.sec, diff.usec); 3745 } 3746 if (wpa_supplicant_event_scan_results(wpa_s, data)) 3747 break; /* interface may have been removed */ 3748 if (!(data && data->scan_info.external_scan)) 3749 wpa_s->own_scan_running = 0; 3750 if (data && data->scan_info.nl_scan_event) 3751 wpa_s->radio->external_scan_running = 0; 3752 radio_work_check_next(wpa_s); 3753 break; 3754 #endif /* CONFIG_NO_SCAN_PROCESSING */ 3755 case EVENT_ASSOCINFO: 3756 wpa_supplicant_event_associnfo(wpa_s, data); 3757 break; 3758 case EVENT_INTERFACE_STATUS: 3759 wpa_supplicant_event_interface_status(wpa_s, data); 3760 break; 3761 case EVENT_PMKID_CANDIDATE: 3762 wpa_supplicant_event_pmkid_candidate(wpa_s, data); 3763 break; 3764 #ifdef CONFIG_PEERKEY 3765 case EVENT_STKSTART: 3766 wpa_supplicant_event_stkstart(wpa_s, data); 3767 break; 3768 #endif /* CONFIG_PEERKEY */ 3769 #ifdef CONFIG_TDLS 3770 case EVENT_TDLS: 3771 wpa_supplicant_event_tdls(wpa_s, data); 3772 break; 3773 #endif /* CONFIG_TDLS */ 3774 #ifdef CONFIG_WNM 3775 case EVENT_WNM: 3776 wpa_supplicant_event_wnm(wpa_s, data); 3777 break; 3778 #endif /* CONFIG_WNM */ 3779 #ifdef CONFIG_IEEE80211R 3780 case EVENT_FT_RESPONSE: 3781 wpa_supplicant_event_ft_response(wpa_s, data); 3782 break; 3783 #endif /* CONFIG_IEEE80211R */ 3784 #ifdef CONFIG_IBSS_RSN 3785 case EVENT_IBSS_RSN_START: 3786 wpa_supplicant_event_ibss_rsn_start(wpa_s, data); 3787 break; 3788 #endif /* CONFIG_IBSS_RSN */ 3789 case EVENT_ASSOC_REJECT: 3790 if (data->assoc_reject.timeout_reason) 3791 os_snprintf(buf, sizeof(buf), "=%s", 3792 data->assoc_reject.timeout_reason); 3793 else 3794 buf[0] = '\0'; 3795 if (data->assoc_reject.bssid) 3796 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 3797 "bssid=" MACSTR " status_code=%u%s%s", 3798 MAC2STR(data->assoc_reject.bssid), 3799 data->assoc_reject.status_code, 3800 data->assoc_reject.timed_out ? " timeout" : "", 3801 buf); 3802 else 3803 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_ASSOC_REJECT 3804 "status_code=%u%s%s", 3805 data->assoc_reject.status_code, 3806 data->assoc_reject.timed_out ? " timeout" : "", 3807 buf); 3808 wpa_s->assoc_status_code = data->assoc_reject.status_code; 3809 wpa_s->assoc_timed_out = data->assoc_reject.timed_out; 3810 wpas_notify_assoc_status_code(wpa_s); 3811 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 3812 sme_event_assoc_reject(wpa_s, data); 3813 else { 3814 const u8 *bssid = data->assoc_reject.bssid; 3815 if (bssid == NULL || is_zero_ether_addr(bssid)) 3816 bssid = wpa_s->pending_bssid; 3817 wpas_connection_failed(wpa_s, bssid); 3818 wpa_supplicant_mark_disassoc(wpa_s); 3819 } 3820 break; 3821 case EVENT_AUTH_TIMED_OUT: 3822 /* It is possible to get this event from earlier connection */ 3823 if (wpa_s->current_ssid && 3824 wpa_s->current_ssid->mode == WPAS_MODE_MESH) { 3825 wpa_dbg(wpa_s, MSG_DEBUG, 3826 "Ignore AUTH_TIMED_OUT in mesh configuration"); 3827 break; 3828 } 3829 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 3830 sme_event_auth_timed_out(wpa_s, data); 3831 break; 3832 case EVENT_ASSOC_TIMED_OUT: 3833 /* It is possible to get this event from earlier connection */ 3834 if (wpa_s->current_ssid && 3835 wpa_s->current_ssid->mode == WPAS_MODE_MESH) { 3836 wpa_dbg(wpa_s, MSG_DEBUG, 3837 "Ignore ASSOC_TIMED_OUT in mesh configuration"); 3838 break; 3839 } 3840 if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) 3841 sme_event_assoc_timed_out(wpa_s, data); 3842 break; 3843 case EVENT_TX_STATUS: 3844 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS dst=" MACSTR 3845 " type=%d stype=%d", 3846 MAC2STR(data->tx_status.dst), 3847 data->tx_status.type, data->tx_status.stype); 3848 #ifdef CONFIG_AP 3849 if (wpa_s->ap_iface == NULL) { 3850 #ifdef CONFIG_OFFCHANNEL 3851 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 3852 data->tx_status.stype == WLAN_FC_STYPE_ACTION) 3853 offchannel_send_action_tx_status( 3854 wpa_s, data->tx_status.dst, 3855 data->tx_status.data, 3856 data->tx_status.data_len, 3857 data->tx_status.ack ? 3858 OFFCHANNEL_SEND_ACTION_SUCCESS : 3859 OFFCHANNEL_SEND_ACTION_NO_ACK); 3860 #endif /* CONFIG_OFFCHANNEL */ 3861 break; 3862 } 3863 #endif /* CONFIG_AP */ 3864 #ifdef CONFIG_OFFCHANNEL 3865 wpa_dbg(wpa_s, MSG_DEBUG, "EVENT_TX_STATUS pending_dst=" 3866 MACSTR, MAC2STR(wpa_s->p2pdev->pending_action_dst)); 3867 /* 3868 * Catch TX status events for Action frames we sent via group 3869 * interface in GO mode, or via standalone AP interface. 3870 * Note, wpa_s->p2pdev will be the same as wpa_s->parent, 3871 * except when the primary interface is used as a GO interface 3872 * (for drivers which do not have group interface concurrency) 3873 */ 3874 if (data->tx_status.type == WLAN_FC_TYPE_MGMT && 3875 data->tx_status.stype == WLAN_FC_STYPE_ACTION && 3876 os_memcmp(wpa_s->p2pdev->pending_action_dst, 3877 data->tx_status.dst, ETH_ALEN) == 0) { 3878 offchannel_send_action_tx_status( 3879 wpa_s->p2pdev, data->tx_status.dst, 3880 data->tx_status.data, 3881 data->tx_status.data_len, 3882 data->tx_status.ack ? 3883 OFFCHANNEL_SEND_ACTION_SUCCESS : 3884 OFFCHANNEL_SEND_ACTION_NO_ACK); 3885 break; 3886 } 3887 #endif /* CONFIG_OFFCHANNEL */ 3888 #ifdef CONFIG_AP 3889 switch (data->tx_status.type) { 3890 case WLAN_FC_TYPE_MGMT: 3891 ap_mgmt_tx_cb(wpa_s, data->tx_status.data, 3892 data->tx_status.data_len, 3893 data->tx_status.stype, 3894 data->tx_status.ack); 3895 break; 3896 case WLAN_FC_TYPE_DATA: 3897 ap_tx_status(wpa_s, data->tx_status.dst, 3898 data->tx_status.data, 3899 data->tx_status.data_len, 3900 data->tx_status.ack); 3901 break; 3902 } 3903 #endif /* CONFIG_AP */ 3904 break; 3905 #ifdef CONFIG_AP 3906 case EVENT_EAPOL_TX_STATUS: 3907 ap_eapol_tx_status(wpa_s, data->eapol_tx_status.dst, 3908 data->eapol_tx_status.data, 3909 data->eapol_tx_status.data_len, 3910 data->eapol_tx_status.ack); 3911 break; 3912 case EVENT_DRIVER_CLIENT_POLL_OK: 3913 ap_client_poll_ok(wpa_s, data->client_poll.addr); 3914 break; 3915 case EVENT_RX_FROM_UNKNOWN: 3916 if (wpa_s->ap_iface == NULL) 3917 break; 3918 ap_rx_from_unknown_sta(wpa_s, data->rx_from_unknown.addr, 3919 data->rx_from_unknown.wds); 3920 break; 3921 case EVENT_CH_SWITCH: 3922 if (!data || !wpa_s->current_ssid) 3923 break; 3924 3925 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_CHANNEL_SWITCH 3926 "freq=%d ht_enabled=%d ch_offset=%d ch_width=%s cf1=%d cf2=%d", 3927 data->ch_switch.freq, 3928 data->ch_switch.ht_enabled, 3929 data->ch_switch.ch_offset, 3930 channel_width_to_string(data->ch_switch.ch_width), 3931 data->ch_switch.cf1, 3932 data->ch_switch.cf2); 3933 3934 wpa_s->assoc_freq = data->ch_switch.freq; 3935 wpa_s->current_ssid->frequency = data->ch_switch.freq; 3936 3937 if (wpa_s->current_ssid->mode == WPAS_MODE_AP || 3938 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO || 3939 wpa_s->current_ssid->mode == 3940 WPAS_MODE_P2P_GROUP_FORMATION) { 3941 wpas_ap_ch_switch(wpa_s, data->ch_switch.freq, 3942 data->ch_switch.ht_enabled, 3943 data->ch_switch.ch_offset, 3944 data->ch_switch.ch_width, 3945 data->ch_switch.cf1, 3946 data->ch_switch.cf2); 3947 } 3948 3949 wpas_p2p_update_channel_list(wpa_s, WPAS_P2P_CHANNEL_UPDATE_CS); 3950 break; 3951 #ifdef NEED_AP_MLME 3952 case EVENT_DFS_RADAR_DETECTED: 3953 if (data) 3954 wpas_event_dfs_radar_detected(wpa_s, &data->dfs_event); 3955 break; 3956 case EVENT_DFS_CAC_STARTED: 3957 if (data) 3958 wpas_event_dfs_cac_started(wpa_s, &data->dfs_event); 3959 break; 3960 case EVENT_DFS_CAC_FINISHED: 3961 if (data) 3962 wpas_event_dfs_cac_finished(wpa_s, &data->dfs_event); 3963 break; 3964 case EVENT_DFS_CAC_ABORTED: 3965 if (data) 3966 wpas_event_dfs_cac_aborted(wpa_s, &data->dfs_event); 3967 break; 3968 case EVENT_DFS_NOP_FINISHED: 3969 if (data) 3970 wpas_event_dfs_cac_nop_finished(wpa_s, 3971 &data->dfs_event); 3972 break; 3973 #endif /* NEED_AP_MLME */ 3974 #endif /* CONFIG_AP */ 3975 case EVENT_RX_MGMT: { 3976 u16 fc, stype; 3977 const struct ieee80211_mgmt *mgmt; 3978 3979 #ifdef CONFIG_TESTING_OPTIONS 3980 if (wpa_s->ext_mgmt_frame_handling) { 3981 struct rx_mgmt *rx = &data->rx_mgmt; 3982 size_t hex_len = 2 * rx->frame_len + 1; 3983 char *hex = os_malloc(hex_len); 3984 if (hex) { 3985 wpa_snprintf_hex(hex, hex_len, 3986 rx->frame, rx->frame_len); 3987 wpa_msg(wpa_s, MSG_INFO, "MGMT-RX freq=%d datarate=%u ssi_signal=%d %s", 3988 rx->freq, rx->datarate, rx->ssi_signal, 3989 hex); 3990 os_free(hex); 3991 } 3992 break; 3993 } 3994 #endif /* CONFIG_TESTING_OPTIONS */ 3995 3996 mgmt = (const struct ieee80211_mgmt *) 3997 data->rx_mgmt.frame; 3998 fc = le_to_host16(mgmt->frame_control); 3999 stype = WLAN_FC_GET_STYPE(fc); 4000 4001 #ifdef CONFIG_AP 4002 if (wpa_s->ap_iface == NULL) { 4003 #endif /* CONFIG_AP */ 4004 #ifdef CONFIG_P2P 4005 if (stype == WLAN_FC_STYPE_PROBE_REQ && 4006 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) { 4007 const u8 *src = mgmt->sa; 4008 const u8 *ie; 4009 size_t ie_len; 4010 4011 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN; 4012 ie_len = data->rx_mgmt.frame_len - 4013 IEEE80211_HDRLEN; 4014 wpas_p2p_probe_req_rx( 4015 wpa_s, src, mgmt->da, 4016 mgmt->bssid, ie, ie_len, 4017 data->rx_mgmt.freq, 4018 data->rx_mgmt.ssi_signal); 4019 break; 4020 } 4021 #endif /* CONFIG_P2P */ 4022 #ifdef CONFIG_IBSS_RSN 4023 if (wpa_s->current_ssid && 4024 wpa_s->current_ssid->mode == WPAS_MODE_IBSS && 4025 stype == WLAN_FC_STYPE_AUTH && 4026 data->rx_mgmt.frame_len >= 30) { 4027 wpa_supplicant_event_ibss_auth(wpa_s, data); 4028 break; 4029 } 4030 #endif /* CONFIG_IBSS_RSN */ 4031 4032 if (stype == WLAN_FC_STYPE_ACTION) { 4033 wpas_event_rx_mgmt_action( 4034 wpa_s, data->rx_mgmt.frame, 4035 data->rx_mgmt.frame_len, 4036 data->rx_mgmt.freq, 4037 data->rx_mgmt.ssi_signal); 4038 break; 4039 } 4040 4041 if (wpa_s->ifmsh) { 4042 mesh_mpm_mgmt_rx(wpa_s, &data->rx_mgmt); 4043 break; 4044 } 4045 4046 wpa_dbg(wpa_s, MSG_DEBUG, "AP: ignore received " 4047 "management frame in non-AP mode"); 4048 break; 4049 #ifdef CONFIG_AP 4050 } 4051 4052 if (stype == WLAN_FC_STYPE_PROBE_REQ && 4053 data->rx_mgmt.frame_len > IEEE80211_HDRLEN) { 4054 const u8 *ie; 4055 size_t ie_len; 4056 4057 ie = data->rx_mgmt.frame + IEEE80211_HDRLEN; 4058 ie_len = data->rx_mgmt.frame_len - IEEE80211_HDRLEN; 4059 4060 wpas_notify_preq(wpa_s, mgmt->sa, mgmt->da, 4061 mgmt->bssid, ie, ie_len, 4062 data->rx_mgmt.ssi_signal); 4063 } 4064 4065 ap_mgmt_rx(wpa_s, &data->rx_mgmt); 4066 #endif /* CONFIG_AP */ 4067 break; 4068 } 4069 case EVENT_RX_PROBE_REQ: 4070 if (data->rx_probe_req.sa == NULL || 4071 data->rx_probe_req.ie == NULL) 4072 break; 4073 #ifdef CONFIG_AP 4074 if (wpa_s->ap_iface) { 4075 hostapd_probe_req_rx(wpa_s->ap_iface->bss[0], 4076 data->rx_probe_req.sa, 4077 data->rx_probe_req.da, 4078 data->rx_probe_req.bssid, 4079 data->rx_probe_req.ie, 4080 data->rx_probe_req.ie_len, 4081 data->rx_probe_req.ssi_signal); 4082 break; 4083 } 4084 #endif /* CONFIG_AP */ 4085 wpas_p2p_probe_req_rx(wpa_s, data->rx_probe_req.sa, 4086 data->rx_probe_req.da, 4087 data->rx_probe_req.bssid, 4088 data->rx_probe_req.ie, 4089 data->rx_probe_req.ie_len, 4090 0, 4091 data->rx_probe_req.ssi_signal); 4092 break; 4093 case EVENT_REMAIN_ON_CHANNEL: 4094 #ifdef CONFIG_OFFCHANNEL 4095 offchannel_remain_on_channel_cb( 4096 wpa_s, data->remain_on_channel.freq, 4097 data->remain_on_channel.duration); 4098 #endif /* CONFIG_OFFCHANNEL */ 4099 wpas_p2p_remain_on_channel_cb( 4100 wpa_s, data->remain_on_channel.freq, 4101 data->remain_on_channel.duration); 4102 break; 4103 case EVENT_CANCEL_REMAIN_ON_CHANNEL: 4104 #ifdef CONFIG_OFFCHANNEL 4105 offchannel_cancel_remain_on_channel_cb( 4106 wpa_s, data->remain_on_channel.freq); 4107 #endif /* CONFIG_OFFCHANNEL */ 4108 wpas_p2p_cancel_remain_on_channel_cb( 4109 wpa_s, data->remain_on_channel.freq); 4110 break; 4111 case EVENT_EAPOL_RX: 4112 wpa_supplicant_rx_eapol(wpa_s, data->eapol_rx.src, 4113 data->eapol_rx.data, 4114 data->eapol_rx.data_len); 4115 break; 4116 case EVENT_SIGNAL_CHANGE: 4117 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_SIGNAL_CHANGE 4118 "above=%d signal=%d noise=%d txrate=%d", 4119 data->signal_change.above_threshold, 4120 data->signal_change.current_signal, 4121 data->signal_change.current_noise, 4122 data->signal_change.current_txrate); 4123 wpa_bss_update_level(wpa_s->current_bss, 4124 data->signal_change.current_signal); 4125 bgscan_notify_signal_change( 4126 wpa_s, data->signal_change.above_threshold, 4127 data->signal_change.current_signal, 4128 data->signal_change.current_noise, 4129 data->signal_change.current_txrate); 4130 break; 4131 case EVENT_INTERFACE_ENABLED: 4132 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was enabled"); 4133 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) { 4134 wpa_supplicant_update_mac_addr(wpa_s); 4135 if (wpa_s->p2p_mgmt) { 4136 wpa_supplicant_set_state(wpa_s, 4137 WPA_DISCONNECTED); 4138 break; 4139 } 4140 4141 #ifdef CONFIG_AP 4142 if (!wpa_s->ap_iface) { 4143 wpa_supplicant_set_state(wpa_s, 4144 WPA_DISCONNECTED); 4145 wpa_s->scan_req = NORMAL_SCAN_REQ; 4146 wpa_supplicant_req_scan(wpa_s, 0, 0); 4147 } else 4148 wpa_supplicant_set_state(wpa_s, 4149 WPA_COMPLETED); 4150 #else /* CONFIG_AP */ 4151 wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED); 4152 wpa_supplicant_req_scan(wpa_s, 0, 0); 4153 #endif /* CONFIG_AP */ 4154 } 4155 break; 4156 case EVENT_INTERFACE_DISABLED: 4157 wpa_dbg(wpa_s, MSG_DEBUG, "Interface was disabled"); 4158 #ifdef CONFIG_P2P 4159 if (wpa_s->p2p_group_interface == P2P_GROUP_INTERFACE_GO || 4160 (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group && 4161 wpa_s->current_ssid->mode == WPAS_MODE_P2P_GO)) { 4162 /* 4163 * Mark interface disabled if this happens to end up not 4164 * being removed as a separate P2P group interface. 4165 */ 4166 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 4167 /* 4168 * The interface was externally disabled. Remove 4169 * it assuming an external entity will start a 4170 * new session if needed. 4171 */ 4172 if (wpa_s->current_ssid && 4173 wpa_s->current_ssid->p2p_group) 4174 wpas_p2p_interface_unavailable(wpa_s); 4175 else 4176 wpas_p2p_disconnect(wpa_s); 4177 /* 4178 * wpa_s instance may have been freed, so must not use 4179 * it here anymore. 4180 */ 4181 break; 4182 } 4183 if (wpa_s->p2p_scan_work && wpa_s->global->p2p && 4184 p2p_in_progress(wpa_s->global->p2p) > 1) { 4185 /* This radio work will be cancelled, so clear P2P 4186 * state as well. 4187 */ 4188 p2p_stop_find(wpa_s->global->p2p); 4189 } 4190 #endif /* CONFIG_P2P */ 4191 4192 if (wpa_s->wpa_state >= WPA_AUTHENTICATING) { 4193 /* 4194 * Indicate disconnection to keep ctrl_iface events 4195 * consistent. 4196 */ 4197 wpa_supplicant_event_disassoc( 4198 wpa_s, WLAN_REASON_DEAUTH_LEAVING, 1); 4199 } 4200 wpa_supplicant_mark_disassoc(wpa_s); 4201 wpa_bss_flush(wpa_s); 4202 radio_remove_works(wpa_s, NULL, 0); 4203 4204 wpa_supplicant_set_state(wpa_s, WPA_INTERFACE_DISABLED); 4205 break; 4206 case EVENT_CHANNEL_LIST_CHANGED: 4207 wpa_supplicant_update_channel_list( 4208 wpa_s, &data->channel_list_changed); 4209 break; 4210 case EVENT_INTERFACE_UNAVAILABLE: 4211 wpas_p2p_interface_unavailable(wpa_s); 4212 break; 4213 case EVENT_BEST_CHANNEL: 4214 wpa_dbg(wpa_s, MSG_DEBUG, "Best channel event received " 4215 "(%d %d %d)", 4216 data->best_chan.freq_24, data->best_chan.freq_5, 4217 data->best_chan.freq_overall); 4218 wpa_s->best_24_freq = data->best_chan.freq_24; 4219 wpa_s->best_5_freq = data->best_chan.freq_5; 4220 wpa_s->best_overall_freq = data->best_chan.freq_overall; 4221 wpas_p2p_update_best_channels(wpa_s, data->best_chan.freq_24, 4222 data->best_chan.freq_5, 4223 data->best_chan.freq_overall); 4224 break; 4225 case EVENT_UNPROT_DEAUTH: 4226 wpa_supplicant_event_unprot_deauth(wpa_s, 4227 &data->unprot_deauth); 4228 break; 4229 case EVENT_UNPROT_DISASSOC: 4230 wpa_supplicant_event_unprot_disassoc(wpa_s, 4231 &data->unprot_disassoc); 4232 break; 4233 case EVENT_STATION_LOW_ACK: 4234 #ifdef CONFIG_AP 4235 if (wpa_s->ap_iface && data) 4236 hostapd_event_sta_low_ack(wpa_s->ap_iface->bss[0], 4237 data->low_ack.addr); 4238 #endif /* CONFIG_AP */ 4239 #ifdef CONFIG_TDLS 4240 if (data) 4241 wpa_tdls_disable_unreachable_link(wpa_s->wpa, 4242 data->low_ack.addr); 4243 #endif /* CONFIG_TDLS */ 4244 break; 4245 case EVENT_IBSS_PEER_LOST: 4246 #ifdef CONFIG_IBSS_RSN 4247 ibss_rsn_stop(wpa_s->ibss_rsn, data->ibss_peer_lost.peer); 4248 #endif /* CONFIG_IBSS_RSN */ 4249 break; 4250 case EVENT_DRIVER_GTK_REKEY: 4251 if (os_memcmp(data->driver_gtk_rekey.bssid, 4252 wpa_s->bssid, ETH_ALEN)) 4253 break; 4254 if (!wpa_s->wpa) 4255 break; 4256 wpa_sm_update_replay_ctr(wpa_s->wpa, 4257 data->driver_gtk_rekey.replay_ctr); 4258 break; 4259 case EVENT_SCHED_SCAN_STOPPED: 4260 wpa_s->sched_scanning = 0; 4261 resched = wpa_s->scanning && wpas_scan_scheduled(wpa_s); 4262 wpa_supplicant_notify_scanning(wpa_s, 0); 4263 4264 if (wpa_s->wpa_state == WPA_INTERFACE_DISABLED) 4265 break; 4266 4267 /* 4268 * If the driver stopped scanning without being requested to, 4269 * request a new scan to continue scanning for networks. 4270 */ 4271 if (!wpa_s->sched_scan_stop_req && 4272 wpa_s->wpa_state == WPA_SCANNING) { 4273 wpa_dbg(wpa_s, MSG_DEBUG, 4274 "Restart scanning after unexpected sched_scan stop event"); 4275 wpa_supplicant_req_scan(wpa_s, 1, 0); 4276 break; 4277 } 4278 4279 wpa_s->sched_scan_stop_req = 0; 4280 4281 /* 4282 * Start a new sched scan to continue searching for more SSIDs 4283 * either if timed out or PNO schedule scan is pending. 4284 */ 4285 if (wpa_s->sched_scan_timed_out) { 4286 wpa_supplicant_req_sched_scan(wpa_s); 4287 } else if (wpa_s->pno_sched_pending) { 4288 wpa_s->pno_sched_pending = 0; 4289 wpas_start_pno(wpa_s); 4290 } else if (resched) { 4291 wpa_supplicant_req_scan(wpa_s, 0, 0); 4292 } 4293 4294 break; 4295 case EVENT_WPS_BUTTON_PUSHED: 4296 #ifdef CONFIG_WPS 4297 wpas_wps_start_pbc(wpa_s, NULL, 0); 4298 #endif /* CONFIG_WPS */ 4299 break; 4300 case EVENT_AVOID_FREQUENCIES: 4301 wpa_supplicant_notify_avoid_freq(wpa_s, data); 4302 break; 4303 case EVENT_CONNECT_FAILED_REASON: 4304 #ifdef CONFIG_AP 4305 if (!wpa_s->ap_iface || !data) 4306 break; 4307 hostapd_event_connect_failed_reason( 4308 wpa_s->ap_iface->bss[0], 4309 data->connect_failed_reason.addr, 4310 data->connect_failed_reason.code); 4311 #endif /* CONFIG_AP */ 4312 break; 4313 case EVENT_NEW_PEER_CANDIDATE: 4314 #ifdef CONFIG_MESH 4315 if (!wpa_s->ifmsh || !data) 4316 break; 4317 wpa_mesh_notify_peer(wpa_s, data->mesh_peer.peer, 4318 data->mesh_peer.ies, 4319 data->mesh_peer.ie_len); 4320 #endif /* CONFIG_MESH */ 4321 break; 4322 case EVENT_SURVEY: 4323 #ifdef CONFIG_AP 4324 if (!wpa_s->ap_iface) 4325 break; 4326 hostapd_event_get_survey(wpa_s->ap_iface, 4327 &data->survey_results); 4328 #endif /* CONFIG_AP */ 4329 break; 4330 case EVENT_ACS_CHANNEL_SELECTED: 4331 #ifdef CONFIG_AP 4332 #ifdef CONFIG_ACS 4333 if (!wpa_s->ap_iface) 4334 break; 4335 hostapd_acs_channel_selected(wpa_s->ap_iface->bss[0], 4336 &data->acs_selected_channels); 4337 #endif /* CONFIG_ACS */ 4338 #endif /* CONFIG_AP */ 4339 break; 4340 case EVENT_P2P_LO_STOP: 4341 #ifdef CONFIG_P2P 4342 wpa_s->p2p_lo_started = 0; 4343 wpa_msg(wpa_s, MSG_INFO, P2P_EVENT_LISTEN_OFFLOAD_STOP 4344 P2P_LISTEN_OFFLOAD_STOP_REASON "reason=%d", 4345 data->p2p_lo_stop.reason_code); 4346 #endif /* CONFIG_P2P */ 4347 break; 4348 case EVENT_BEACON_LOSS: 4349 if (!wpa_s->current_bss || !wpa_s->current_ssid) 4350 break; 4351 wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_BEACON_LOSS); 4352 bgscan_notify_beacon_loss(wpa_s); 4353 break; 4354 default: 4355 wpa_msg(wpa_s, MSG_INFO, "Unknown event %d", event); 4356 break; 4357 } 4358 } 4359 4360 4361 void wpa_supplicant_event_global(void *ctx, enum wpa_event_type event, 4362 union wpa_event_data *data) 4363 { 4364 struct wpa_supplicant *wpa_s; 4365 4366 if (event != EVENT_INTERFACE_STATUS) 4367 return; 4368 4369 wpa_s = wpa_supplicant_get_iface(ctx, data->interface_status.ifname); 4370 if (wpa_s && wpa_s->driver->get_ifindex) { 4371 unsigned int ifindex; 4372 4373 ifindex = wpa_s->driver->get_ifindex(wpa_s->drv_priv); 4374 if (ifindex != data->interface_status.ifindex) { 4375 wpa_dbg(wpa_s, MSG_DEBUG, 4376 "interface status ifindex %d mismatch (%d)", 4377 ifindex, data->interface_status.ifindex); 4378 return; 4379 } 4380 } 4381 #ifdef CONFIG_MATCH_IFACE 4382 else if (data->interface_status.ievent == EVENT_INTERFACE_ADDED) { 4383 struct wpa_interface *wpa_i; 4384 4385 wpa_i = wpa_supplicant_match_iface( 4386 ctx, data->interface_status.ifname); 4387 if (!wpa_i) 4388 return; 4389 wpa_s = wpa_supplicant_add_iface(ctx, wpa_i, NULL); 4390 os_free(wpa_i); 4391 if (wpa_s) 4392 wpa_s->matched = 1; 4393 } 4394 #endif /* CONFIG_MATCH_IFACE */ 4395 4396 if (wpa_s) 4397 wpa_supplicant_event(wpa_s, event, data); 4398 } 4399
