1 /* 2 * hostapd / IEEE 802.11 authentication (ACL) 3 * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 * 8 * Access control list for IEEE 802.11 authentication can uses statically 9 * configured ACL from configuration files or an external RADIUS server. 10 * Results from external RADIUS queries are cached to allow faster 11 * authentication frame processing. 12 */ 13 14 #include "utils/includes.h" 15 16 #include "utils/common.h" 17 #include "utils/eloop.h" 18 #include "radius/radius.h" 19 #include "radius/radius_client.h" 20 #include "hostapd.h" 21 #include "ap_config.h" 22 #include "ap_drv_ops.h" 23 #include "ieee802_11.h" 24 #include "ieee802_1x.h" 25 #include "ieee802_11_auth.h" 26 27 #define RADIUS_ACL_TIMEOUT 30 28 29 30 struct hostapd_cached_radius_acl { 31 struct os_reltime timestamp; 32 macaddr addr; 33 int accepted; /* HOSTAPD_ACL_* */ 34 struct hostapd_cached_radius_acl *next; 35 u32 session_timeout; 36 u32 acct_interim_interval; 37 struct vlan_description vlan_id; 38 struct hostapd_sta_wpa_psk_short *psk; 39 char *identity; 40 char *radius_cui; 41 }; 42 43 44 struct hostapd_acl_query_data { 45 struct os_reltime timestamp; 46 u8 radius_id; 47 macaddr addr; 48 u8 *auth_msg; /* IEEE 802.11 authentication frame from station */ 49 size_t auth_msg_len; 50 struct hostapd_acl_query_data *next; 51 }; 52 53 54 #ifndef CONFIG_NO_RADIUS 55 static void hostapd_acl_cache_free_entry(struct hostapd_cached_radius_acl *e) 56 { 57 os_free(e->identity); 58 os_free(e->radius_cui); 59 hostapd_free_psk_list(e->psk); 60 os_free(e); 61 } 62 63 64 static void hostapd_acl_cache_free(struct hostapd_cached_radius_acl *acl_cache) 65 { 66 struct hostapd_cached_radius_acl *prev; 67 68 while (acl_cache) { 69 prev = acl_cache; 70 acl_cache = acl_cache->next; 71 hostapd_acl_cache_free_entry(prev); 72 } 73 } 74 75 76 static void copy_psk_list(struct hostapd_sta_wpa_psk_short **psk, 77 struct hostapd_sta_wpa_psk_short *src) 78 { 79 if (!psk) 80 return; 81 82 if (src) 83 src->ref++; 84 85 *psk = src; 86 } 87 88 89 static int hostapd_acl_cache_get(struct hostapd_data *hapd, const u8 *addr, 90 u32 *session_timeout, 91 u32 *acct_interim_interval, 92 struct vlan_description *vlan_id, 93 struct hostapd_sta_wpa_psk_short **psk, 94 char **identity, char **radius_cui) 95 { 96 struct hostapd_cached_radius_acl *entry; 97 struct os_reltime now; 98 99 os_get_reltime(&now); 100 101 for (entry = hapd->acl_cache; entry; entry = entry->next) { 102 if (os_memcmp(entry->addr, addr, ETH_ALEN) != 0) 103 continue; 104 105 if (os_reltime_expired(&now, &entry->timestamp, 106 RADIUS_ACL_TIMEOUT)) 107 return -1; /* entry has expired */ 108 if (entry->accepted == HOSTAPD_ACL_ACCEPT_TIMEOUT) 109 if (session_timeout) 110 *session_timeout = entry->session_timeout; 111 if (acct_interim_interval) 112 *acct_interim_interval = 113 entry->acct_interim_interval; 114 if (vlan_id) 115 *vlan_id = entry->vlan_id; 116 copy_psk_list(psk, entry->psk); 117 if (identity) { 118 if (entry->identity) 119 *identity = os_strdup(entry->identity); 120 else 121 *identity = NULL; 122 } 123 if (radius_cui) { 124 if (entry->radius_cui) 125 *radius_cui = os_strdup(entry->radius_cui); 126 else 127 *radius_cui = NULL; 128 } 129 return entry->accepted; 130 } 131 132 return -1; 133 } 134 #endif /* CONFIG_NO_RADIUS */ 135 136 137 static void hostapd_acl_query_free(struct hostapd_acl_query_data *query) 138 { 139 if (query == NULL) 140 return; 141 os_free(query->auth_msg); 142 os_free(query); 143 } 144 145 146 #ifndef CONFIG_NO_RADIUS 147 static int hostapd_radius_acl_query(struct hostapd_data *hapd, const u8 *addr, 148 struct hostapd_acl_query_data *query) 149 { 150 struct radius_msg *msg; 151 char buf[128]; 152 153 query->radius_id = radius_client_get_id(hapd->radius); 154 msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST, query->radius_id); 155 if (msg == NULL) 156 return -1; 157 158 if (radius_msg_make_authenticator(msg) < 0) { 159 wpa_printf(MSG_INFO, "Could not make Request Authenticator"); 160 goto fail; 161 } 162 163 os_snprintf(buf, sizeof(buf), RADIUS_ADDR_FORMAT, MAC2STR(addr)); 164 if (!radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME, (u8 *) buf, 165 os_strlen(buf))) { 166 wpa_printf(MSG_DEBUG, "Could not add User-Name"); 167 goto fail; 168 } 169 170 if (!radius_msg_add_attr_user_password( 171 msg, (u8 *) buf, os_strlen(buf), 172 hapd->conf->radius->auth_server->shared_secret, 173 hapd->conf->radius->auth_server->shared_secret_len)) { 174 wpa_printf(MSG_DEBUG, "Could not add User-Password"); 175 goto fail; 176 } 177 178 if (add_common_radius_attr(hapd, hapd->conf->radius_auth_req_attr, 179 NULL, msg) < 0) 180 goto fail; 181 182 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT, 183 MAC2STR(addr)); 184 if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID, 185 (u8 *) buf, os_strlen(buf))) { 186 wpa_printf(MSG_DEBUG, "Could not add Calling-Station-Id"); 187 goto fail; 188 } 189 190 os_snprintf(buf, sizeof(buf), "CONNECT 11Mbps 802.11b"); 191 if (!radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO, 192 (u8 *) buf, os_strlen(buf))) { 193 wpa_printf(MSG_DEBUG, "Could not add Connect-Info"); 194 goto fail; 195 } 196 197 if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, addr) < 0) 198 goto fail; 199 return 0; 200 201 fail: 202 radius_msg_free(msg); 203 return -1; 204 } 205 #endif /* CONFIG_NO_RADIUS */ 206 207 208 /** 209 * hostapd_check_acl - Check a specified STA against accept/deny ACLs 210 * @hapd: hostapd BSS data 211 * @addr: MAC address of the STA 212 * @vlan_id: Buffer for returning VLAN ID 213 * Returns: HOSTAPD_ACL_ACCEPT, HOSTAPD_ACL_REJECT, or HOSTAPD_ACL_PENDING 214 */ 215 int hostapd_check_acl(struct hostapd_data *hapd, const u8 *addr, 216 struct vlan_description *vlan_id) 217 { 218 if (hostapd_maclist_found(hapd->conf->accept_mac, 219 hapd->conf->num_accept_mac, addr, vlan_id)) 220 return HOSTAPD_ACL_ACCEPT; 221 222 if (hostapd_maclist_found(hapd->conf->deny_mac, 223 hapd->conf->num_deny_mac, addr, vlan_id)) 224 return HOSTAPD_ACL_REJECT; 225 226 if (hapd->conf->macaddr_acl == ACCEPT_UNLESS_DENIED) 227 return HOSTAPD_ACL_ACCEPT; 228 if (hapd->conf->macaddr_acl == DENY_UNLESS_ACCEPTED) 229 return HOSTAPD_ACL_REJECT; 230 231 return HOSTAPD_ACL_PENDING; 232 } 233 234 235 /** 236 * hostapd_allowed_address - Check whether a specified STA can be authenticated 237 * @hapd: hostapd BSS data 238 * @addr: MAC address of the STA 239 * @msg: Authentication message 240 * @len: Length of msg in octets 241 * @session_timeout: Buffer for returning session timeout (from RADIUS) 242 * @acct_interim_interval: Buffer for returning account interval (from RADIUS) 243 * @vlan_id: Buffer for returning VLAN ID 244 * @psk: Linked list buffer for returning WPA PSK 245 * @identity: Buffer for returning identity (from RADIUS) 246 * @radius_cui: Buffer for returning CUI (from RADIUS) 247 * @is_probe_req: Whether this query for a Probe Request frame 248 * Returns: HOSTAPD_ACL_ACCEPT, HOSTAPD_ACL_REJECT, or HOSTAPD_ACL_PENDING 249 * 250 * The caller is responsible for freeing the returned *identity and *radius_cui 251 * values with os_free(). 252 */ 253 int hostapd_allowed_address(struct hostapd_data *hapd, const u8 *addr, 254 const u8 *msg, size_t len, u32 *session_timeout, 255 u32 *acct_interim_interval, 256 struct vlan_description *vlan_id, 257 struct hostapd_sta_wpa_psk_short **psk, 258 char **identity, char **radius_cui, 259 int is_probe_req) 260 { 261 int res; 262 263 if (session_timeout) 264 *session_timeout = 0; 265 if (acct_interim_interval) 266 *acct_interim_interval = 0; 267 if (vlan_id) 268 os_memset(vlan_id, 0, sizeof(*vlan_id)); 269 if (psk) 270 *psk = NULL; 271 if (identity) 272 *identity = NULL; 273 if (radius_cui) 274 *radius_cui = NULL; 275 276 res = hostapd_check_acl(hapd, addr, vlan_id); 277 if (res != HOSTAPD_ACL_PENDING) 278 return res; 279 280 if (hapd->conf->macaddr_acl == USE_EXTERNAL_RADIUS_AUTH) { 281 #ifdef CONFIG_NO_RADIUS 282 return HOSTAPD_ACL_REJECT; 283 #else /* CONFIG_NO_RADIUS */ 284 struct hostapd_acl_query_data *query; 285 286 if (is_probe_req) { 287 /* Skip RADIUS queries for Probe Request frames to avoid 288 * excessive load on the authentication server. */ 289 return HOSTAPD_ACL_ACCEPT; 290 }; 291 292 if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED) 293 vlan_id = NULL; 294 295 /* Check whether ACL cache has an entry for this station */ 296 res = hostapd_acl_cache_get(hapd, addr, session_timeout, 297 acct_interim_interval, vlan_id, psk, 298 identity, radius_cui); 299 if (res == HOSTAPD_ACL_ACCEPT || 300 res == HOSTAPD_ACL_ACCEPT_TIMEOUT) 301 return res; 302 if (res == HOSTAPD_ACL_REJECT) 303 return HOSTAPD_ACL_REJECT; 304 305 query = hapd->acl_queries; 306 while (query) { 307 if (os_memcmp(query->addr, addr, ETH_ALEN) == 0) { 308 /* pending query in RADIUS retransmit queue; 309 * do not generate a new one */ 310 if (identity) { 311 os_free(*identity); 312 *identity = NULL; 313 } 314 if (radius_cui) { 315 os_free(*radius_cui); 316 *radius_cui = NULL; 317 } 318 return HOSTAPD_ACL_PENDING; 319 } 320 query = query->next; 321 } 322 323 if (!hapd->conf->radius->auth_server) 324 return HOSTAPD_ACL_REJECT; 325 326 /* No entry in the cache - query external RADIUS server */ 327 query = os_zalloc(sizeof(*query)); 328 if (query == NULL) { 329 wpa_printf(MSG_ERROR, "malloc for query data failed"); 330 return HOSTAPD_ACL_REJECT; 331 } 332 os_get_reltime(&query->timestamp); 333 os_memcpy(query->addr, addr, ETH_ALEN); 334 if (hostapd_radius_acl_query(hapd, addr, query)) { 335 wpa_printf(MSG_DEBUG, "Failed to send Access-Request " 336 "for ACL query."); 337 hostapd_acl_query_free(query); 338 return HOSTAPD_ACL_REJECT; 339 } 340 341 query->auth_msg = os_memdup(msg, len); 342 if (query->auth_msg == NULL) { 343 wpa_printf(MSG_ERROR, "Failed to allocate memory for " 344 "auth frame."); 345 hostapd_acl_query_free(query); 346 return HOSTAPD_ACL_REJECT; 347 } 348 query->auth_msg_len = len; 349 query->next = hapd->acl_queries; 350 hapd->acl_queries = query; 351 352 /* Queued data will be processed in hostapd_acl_recv_radius() 353 * when RADIUS server replies to the sent Access-Request. */ 354 return HOSTAPD_ACL_PENDING; 355 #endif /* CONFIG_NO_RADIUS */ 356 } 357 358 return HOSTAPD_ACL_REJECT; 359 } 360 361 362 #ifndef CONFIG_NO_RADIUS 363 static void hostapd_acl_expire_cache(struct hostapd_data *hapd, 364 struct os_reltime *now) 365 { 366 struct hostapd_cached_radius_acl *prev, *entry, *tmp; 367 368 prev = NULL; 369 entry = hapd->acl_cache; 370 371 while (entry) { 372 if (os_reltime_expired(now, &entry->timestamp, 373 RADIUS_ACL_TIMEOUT)) { 374 wpa_printf(MSG_DEBUG, "Cached ACL entry for " MACSTR 375 " has expired.", MAC2STR(entry->addr)); 376 if (prev) 377 prev->next = entry->next; 378 else 379 hapd->acl_cache = entry->next; 380 hostapd_drv_set_radius_acl_expire(hapd, entry->addr); 381 tmp = entry; 382 entry = entry->next; 383 hostapd_acl_cache_free_entry(tmp); 384 continue; 385 } 386 387 prev = entry; 388 entry = entry->next; 389 } 390 } 391 392 393 static void hostapd_acl_expire_queries(struct hostapd_data *hapd, 394 struct os_reltime *now) 395 { 396 struct hostapd_acl_query_data *prev, *entry, *tmp; 397 398 prev = NULL; 399 entry = hapd->acl_queries; 400 401 while (entry) { 402 if (os_reltime_expired(now, &entry->timestamp, 403 RADIUS_ACL_TIMEOUT)) { 404 wpa_printf(MSG_DEBUG, "ACL query for " MACSTR 405 " has expired.", MAC2STR(entry->addr)); 406 if (prev) 407 prev->next = entry->next; 408 else 409 hapd->acl_queries = entry->next; 410 411 tmp = entry; 412 entry = entry->next; 413 hostapd_acl_query_free(tmp); 414 continue; 415 } 416 417 prev = entry; 418 entry = entry->next; 419 } 420 } 421 422 423 /** 424 * hostapd_acl_expire - ACL cache expiration callback 425 * @hapd: struct hostapd_data * 426 */ 427 void hostapd_acl_expire(struct hostapd_data *hapd) 428 { 429 struct os_reltime now; 430 431 os_get_reltime(&now); 432 hostapd_acl_expire_cache(hapd, &now); 433 hostapd_acl_expire_queries(hapd, &now); 434 } 435 436 437 static void decode_tunnel_passwords(struct hostapd_data *hapd, 438 const u8 *shared_secret, 439 size_t shared_secret_len, 440 struct radius_msg *msg, 441 struct radius_msg *req, 442 struct hostapd_cached_radius_acl *cache) 443 { 444 int passphraselen; 445 char *passphrase; 446 size_t i; 447 struct hostapd_sta_wpa_psk_short *psk; 448 449 /* 450 * Decode all tunnel passwords as PSK and save them into a linked list. 451 */ 452 for (i = 0; ; i++) { 453 passphrase = radius_msg_get_tunnel_password( 454 msg, &passphraselen, shared_secret, shared_secret_len, 455 req, i); 456 /* 457 * Passphrase is NULL iff there is no i-th Tunnel-Password 458 * attribute in msg. 459 */ 460 if (passphrase == NULL) 461 break; 462 463 /* 464 * Passphase should be 8..63 chars (to be hashed with SSID) 465 * or 64 chars hex string (no separate hashing with SSID). 466 */ 467 468 if (passphraselen < MIN_PASSPHRASE_LEN || 469 passphraselen > MAX_PASSPHRASE_LEN + 1) 470 goto free_pass; 471 472 /* 473 * passphrase does not contain the NULL termination. 474 * Add it here as pbkdf2_sha1() requires it. 475 */ 476 psk = os_zalloc(sizeof(struct hostapd_sta_wpa_psk_short)); 477 if (psk) { 478 if ((passphraselen == MAX_PASSPHRASE_LEN + 1) && 479 (hexstr2bin(passphrase, psk->psk, PMK_LEN) < 0)) { 480 hostapd_logger(hapd, cache->addr, 481 HOSTAPD_MODULE_RADIUS, 482 HOSTAPD_LEVEL_WARNING, 483 "invalid hex string (%d chars) in Tunnel-Password", 484 passphraselen); 485 goto skip; 486 } else if (passphraselen <= MAX_PASSPHRASE_LEN) { 487 os_memcpy(psk->passphrase, passphrase, 488 passphraselen); 489 psk->is_passphrase = 1; 490 } 491 psk->next = cache->psk; 492 cache->psk = psk; 493 psk = NULL; 494 } 495 skip: 496 os_free(psk); 497 free_pass: 498 os_free(passphrase); 499 } 500 } 501 502 503 /** 504 * hostapd_acl_recv_radius - Process incoming RADIUS Authentication messages 505 * @msg: RADIUS response message 506 * @req: RADIUS request message 507 * @shared_secret: RADIUS shared secret 508 * @shared_secret_len: Length of shared_secret in octets 509 * @data: Context data (struct hostapd_data *) 510 * Returns: RADIUS_RX_PROCESSED if RADIUS message was a reply to ACL query (and 511 * was processed here) or RADIUS_RX_UNKNOWN if not. 512 */ 513 static RadiusRxResult 514 hostapd_acl_recv_radius(struct radius_msg *msg, struct radius_msg *req, 515 const u8 *shared_secret, size_t shared_secret_len, 516 void *data) 517 { 518 struct hostapd_data *hapd = data; 519 struct hostapd_acl_query_data *query, *prev; 520 struct hostapd_cached_radius_acl *cache; 521 struct radius_hdr *hdr = radius_msg_get_hdr(msg); 522 523 query = hapd->acl_queries; 524 prev = NULL; 525 while (query) { 526 if (query->radius_id == hdr->identifier) 527 break; 528 prev = query; 529 query = query->next; 530 } 531 if (query == NULL) 532 return RADIUS_RX_UNKNOWN; 533 534 wpa_printf(MSG_DEBUG, "Found matching Access-Request for RADIUS " 535 "message (id=%d)", query->radius_id); 536 537 if (radius_msg_verify(msg, shared_secret, shared_secret_len, req, 0)) { 538 wpa_printf(MSG_INFO, "Incoming RADIUS packet did not have " 539 "correct authenticator - dropped\n"); 540 return RADIUS_RX_INVALID_AUTHENTICATOR; 541 } 542 543 if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT && 544 hdr->code != RADIUS_CODE_ACCESS_REJECT) { 545 wpa_printf(MSG_DEBUG, "Unknown RADIUS message code %d to ACL " 546 "query", hdr->code); 547 return RADIUS_RX_UNKNOWN; 548 } 549 550 /* Insert Accept/Reject info into ACL cache */ 551 cache = os_zalloc(sizeof(*cache)); 552 if (cache == NULL) { 553 wpa_printf(MSG_DEBUG, "Failed to add ACL cache entry"); 554 goto done; 555 } 556 os_get_reltime(&cache->timestamp); 557 os_memcpy(cache->addr, query->addr, sizeof(cache->addr)); 558 if (hdr->code == RADIUS_CODE_ACCESS_ACCEPT) { 559 u8 *buf; 560 size_t len; 561 562 if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT, 563 &cache->session_timeout) == 0) 564 cache->accepted = HOSTAPD_ACL_ACCEPT_TIMEOUT; 565 else 566 cache->accepted = HOSTAPD_ACL_ACCEPT; 567 568 if (radius_msg_get_attr_int32( 569 msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL, 570 &cache->acct_interim_interval) == 0 && 571 cache->acct_interim_interval < 60) { 572 wpa_printf(MSG_DEBUG, "Ignored too small " 573 "Acct-Interim-Interval %d for STA " MACSTR, 574 cache->acct_interim_interval, 575 MAC2STR(query->addr)); 576 cache->acct_interim_interval = 0; 577 } 578 579 if (hapd->conf->ssid.dynamic_vlan != DYNAMIC_VLAN_DISABLED) 580 cache->vlan_id.notempty = !!radius_msg_get_vlanid( 581 msg, &cache->vlan_id.untagged, 582 MAX_NUM_TAGGED_VLAN, cache->vlan_id.tagged); 583 584 decode_tunnel_passwords(hapd, shared_secret, shared_secret_len, 585 msg, req, cache); 586 587 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME, 588 &buf, &len, NULL) == 0) { 589 cache->identity = os_zalloc(len + 1); 590 if (cache->identity) 591 os_memcpy(cache->identity, buf, len); 592 } 593 if (radius_msg_get_attr_ptr( 594 msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY, 595 &buf, &len, NULL) == 0) { 596 cache->radius_cui = os_zalloc(len + 1); 597 if (cache->radius_cui) 598 os_memcpy(cache->radius_cui, buf, len); 599 } 600 601 if (hapd->conf->wpa_psk_radius == PSK_RADIUS_REQUIRED && 602 !cache->psk) 603 cache->accepted = HOSTAPD_ACL_REJECT; 604 605 if (cache->vlan_id.notempty && 606 !hostapd_vlan_valid(hapd->conf->vlan, &cache->vlan_id)) { 607 hostapd_logger(hapd, query->addr, 608 HOSTAPD_MODULE_RADIUS, 609 HOSTAPD_LEVEL_INFO, 610 "Invalid VLAN %d%s received from RADIUS server", 611 cache->vlan_id.untagged, 612 cache->vlan_id.tagged[0] ? "+" : ""); 613 os_memset(&cache->vlan_id, 0, sizeof(cache->vlan_id)); 614 } 615 if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_REQUIRED && 616 !cache->vlan_id.notempty) 617 cache->accepted = HOSTAPD_ACL_REJECT; 618 } else 619 cache->accepted = HOSTAPD_ACL_REJECT; 620 cache->next = hapd->acl_cache; 621 hapd->acl_cache = cache; 622 623 #ifdef CONFIG_DRIVER_RADIUS_ACL 624 hostapd_drv_set_radius_acl_auth(hapd, query->addr, cache->accepted, 625 cache->session_timeout); 626 #else /* CONFIG_DRIVER_RADIUS_ACL */ 627 #ifdef NEED_AP_MLME 628 /* Re-send original authentication frame for 802.11 processing */ 629 wpa_printf(MSG_DEBUG, "Re-sending authentication frame after " 630 "successful RADIUS ACL query"); 631 ieee802_11_mgmt(hapd, query->auth_msg, query->auth_msg_len, NULL); 632 #endif /* NEED_AP_MLME */ 633 #endif /* CONFIG_DRIVER_RADIUS_ACL */ 634 635 done: 636 if (prev == NULL) 637 hapd->acl_queries = query->next; 638 else 639 prev->next = query->next; 640 641 hostapd_acl_query_free(query); 642 643 return RADIUS_RX_PROCESSED; 644 } 645 #endif /* CONFIG_NO_RADIUS */ 646 647 648 /** 649 * hostapd_acl_init: Initialize IEEE 802.11 ACL 650 * @hapd: hostapd BSS data 651 * Returns: 0 on success, -1 on failure 652 */ 653 int hostapd_acl_init(struct hostapd_data *hapd) 654 { 655 #ifndef CONFIG_NO_RADIUS 656 if (radius_client_register(hapd->radius, RADIUS_AUTH, 657 hostapd_acl_recv_radius, hapd)) 658 return -1; 659 #endif /* CONFIG_NO_RADIUS */ 660 661 return 0; 662 } 663 664 665 /** 666 * hostapd_acl_deinit - Deinitialize IEEE 802.11 ACL 667 * @hapd: hostapd BSS data 668 */ 669 void hostapd_acl_deinit(struct hostapd_data *hapd) 670 { 671 struct hostapd_acl_query_data *query, *prev; 672 673 #ifndef CONFIG_NO_RADIUS 674 hostapd_acl_cache_free(hapd->acl_cache); 675 hapd->acl_cache = NULL; 676 #endif /* CONFIG_NO_RADIUS */ 677 678 query = hapd->acl_queries; 679 hapd->acl_queries = NULL; 680 while (query) { 681 prev = query; 682 query = query->next; 683 hostapd_acl_query_free(prev); 684 } 685 } 686 687 688 void hostapd_free_psk_list(struct hostapd_sta_wpa_psk_short *psk) 689 { 690 if (psk && psk->ref) { 691 /* This will be freed when the last reference is dropped. */ 692 psk->ref--; 693 return; 694 } 695 696 while (psk) { 697 struct hostapd_sta_wpa_psk_short *prev = psk; 698 psk = psk->next; 699 os_free(prev); 700 } 701 } 702