src/ap/ieee802_11_auth.c

   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 "crypto/sha1.h"
  19 #include "radius/radius.h"
  20 #include "radius/radius_client.h"
  21 #include "hostapd.h"
  22 #include "ap_config.h"
  23 #include "ap_drv_ops.h"
  24 #include "ieee802_11.h"
  25 #include "ieee802_1x.h"
  26 #include "ieee802_11_auth.h"
  27
  28 #define RADIUS_ACL_TIMEOUT 30
  29
  30
  31 struct hostapd_cached_radius_acl {
  32         struct os_reltime timestamp;
  33         macaddr addr;
  34         int accepted; /* HOSTAPD_ACL_* */
  35         struct hostapd_cached_radius_acl *next;
  36         u32 session_timeout;
  37         u32 acct_interim_interval;
  38         int vlan_id;
  39         struct hostapd_sta_wpa_psk_short *psk;
  40         char *identity;
  41         char *radius_cui;
  42 };
  43
  44
  45 struct hostapd_acl_query_data {
  46         struct os_reltime timestamp;
  47         u8 radius_id;
  48         macaddr addr;
  49         u8 *auth_msg; /* IEEE 802.11 authentication frame from station */
  50         size_t auth_msg_len;
  51         struct hostapd_acl_query_data *next;
  52 };
  53
  54
  55 #ifndef CONFIG_NO_RADIUS
  56 static void hostapd_acl_cache_free_entry(struct hostapd_cached_radius_acl *e)
  57 {
  58         os_free(e->identity);
  59         os_free(e->radius_cui);
  60         hostapd_free_psk_list(e->psk);
  61         os_free(e);
  62 }
  63
  64
  65 static void hostapd_acl_cache_free(struct hostapd_cached_radius_acl *acl_cache)
  66 {
  67         struct hostapd_cached_radius_acl *prev;
  68
  69         while (acl_cache) {
  70                 prev = acl_cache;
  71                 acl_cache = acl_cache->next;
  72                 hostapd_acl_cache_free_entry(prev);
  73         }
  74 }
  75
  76
  77 static void copy_psk_list(struct hostapd_sta_wpa_psk_short **psk,
  78                           struct hostapd_sta_wpa_psk_short *src)
  79 {
  80         struct hostapd_sta_wpa_psk_short **copy_to;
  81         struct hostapd_sta_wpa_psk_short *copy_from;
  82
  83         /* Copy PSK linked list */
  84         copy_to = psk;
  85         copy_from = src;
  86         while (copy_from && copy_to) {
  87                 *copy_to = os_zalloc(sizeof(struct hostapd_sta_wpa_psk_short));
  88                 if (*copy_to == NULL)
  89                         break;
  90                 os_memcpy(*copy_to, copy_from,
  91                           sizeof(struct hostapd_sta_wpa_psk_short));
  92                 copy_from = copy_from->next;
  93                 copy_to = &((*copy_to)->next);
  94         }
  95         if (copy_to)
  96                 *copy_to = NULL;
  97 }
  98
  99
 100 static int hostapd_acl_cache_get(struct hostapd_data *hapd, const u8 *addr,
 101                                  u32 *session_timeout,
 102                                  u32 *acct_interim_interval, int *vlan_id,
 103                                  struct hostapd_sta_wpa_psk_short **psk,
 104                                  char **identity, char **radius_cui)
 105 {
 106         struct hostapd_cached_radius_acl *entry;
 107         struct os_reltime now;
 108
 109         os_get_reltime(&now);
 110
 111         for (entry = hapd->acl_cache; entry; entry = entry->next) {
 112                 if (os_memcmp(entry->addr, addr, ETH_ALEN) != 0)
 113                         continue;
 114
 115                 if (os_reltime_expired(&now, &entry->timestamp,
 116                                        RADIUS_ACL_TIMEOUT))
 117                         return -1; /* entry has expired */
 118                 if (entry->accepted == HOSTAPD_ACL_ACCEPT_TIMEOUT)
 119                         if (session_timeout)
 120                                 *session_timeout = entry->session_timeout;
 121                 if (acct_interim_interval)
 122                         *acct_interim_interval =
 123                                 entry->acct_interim_interval;
 124                 if (vlan_id)
 125                         *vlan_id = entry->vlan_id;
 126                 copy_psk_list(psk, entry->psk);
 127                 if (identity) {
 128                         if (entry->identity)
 129                                 *identity = os_strdup(entry->identity);
 130                         else
 131                                 *identity = NULL;
 132                 }
 133                 if (radius_cui) {
 134                         if (entry->radius_cui)
 135                                 *radius_cui = os_strdup(entry->radius_cui);
 136                         else
 137                                 *radius_cui = NULL;
 138                 }
 139                 return entry->accepted;
 140         }
 141
 142         return -1;
 143 }
 144 #endif /* CONFIG_NO_RADIUS */
 145
 146
 147 static void hostapd_acl_query_free(struct hostapd_acl_query_data *query)
 148 {
 149         if (query == NULL)
 150                 return;
 151         os_free(query->auth_msg);
 152         os_free(query);
 153 }
 154
 155
 156 #ifndef CONFIG_NO_RADIUS
 157 static int hostapd_radius_acl_query(struct hostapd_data *hapd, const u8 *addr,
 158                                     struct hostapd_acl_query_data *query)
 159 {
 160         struct radius_msg *msg;
 161         char buf[128];
 162
 163         query->radius_id = radius_client_get_id(hapd->radius);
 164         msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST, query->radius_id);
 165         if (msg == NULL)
 166                 return -1;
 167
 168         radius_msg_make_authenticator(msg, addr, ETH_ALEN);
 169
 170         os_snprintf(buf, sizeof(buf), RADIUS_ADDR_FORMAT, MAC2STR(addr));
 171         if (!radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME, (u8 *) buf,
 172                                  os_strlen(buf))) {
 173                 wpa_printf(MSG_DEBUG, "Could not add User-Name");
 174                 goto fail;
 175         }
 176
 177         if (!radius_msg_add_attr_user_password(
 178                     msg, (u8 *) buf, os_strlen(buf),
 179                     hapd->conf->radius->auth_server->shared_secret,
 180                     hapd->conf->radius->auth_server->shared_secret_len)) {
 181                 wpa_printf(MSG_DEBUG, "Could not add User-Password");
 182                 goto fail;
 183         }
 184
 185         if (add_common_radius_attr(hapd, hapd->conf->radius_auth_req_attr,
 186                                    NULL, msg) < 0)
 187                 goto fail;
 188
 189         os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
 190                     MAC2STR(addr));
 191         if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
 192                                  (u8 *) buf, os_strlen(buf))) {
 193                 wpa_printf(MSG_DEBUG, "Could not add Calling-Station-Id");
 194                 goto fail;
 195         }
 196
 197         os_snprintf(buf, sizeof(buf), "CONNECT 11Mbps 802.11b");
 198         if (!radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
 199                                  (u8 *) buf, os_strlen(buf))) {
 200                 wpa_printf(MSG_DEBUG, "Could not add Connect-Info");
 201                 goto fail;
 202         }
 203
 204         if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, addr) < 0)
 205                 goto fail;
 206         return 0;
 207
 208  fail:
 209         radius_msg_free(msg);
 210         return -1;
 211 }
 212 #endif /* CONFIG_NO_RADIUS */
 213
 214
 215 /**
 216  * hostapd_check_acl - Check a specified STA against accept/deny ACLs
 217  * @hapd: hostapd BSS data
 218  * @addr: MAC address of the STA
 219  * @vlan_id: Buffer for returning VLAN ID
 220  * Returns: HOSTAPD_ACL_ACCEPT, HOSTAPD_ACL_REJECT, or HOSTAPD_ACL_PENDING
 221  */
 222  int hostapd_check_acl(struct hostapd_data *hapd, const u8 *addr, int *vlan_id)
 223 {
 224         if (hostapd_maclist_found(hapd->conf->accept_mac,
 225                                   hapd->conf->num_accept_mac, addr, vlan_id))
 226                 return HOSTAPD_ACL_ACCEPT;
 227
 228         if (hostapd_maclist_found(hapd->conf->deny_mac,
 229                                   hapd->conf->num_deny_mac, addr, vlan_id))
 230                 return HOSTAPD_ACL_REJECT;
 231
 232         if (hapd->conf->macaddr_acl == ACCEPT_UNLESS_DENIED)
 233                 return HOSTAPD_ACL_ACCEPT;
 234         if (hapd->conf->macaddr_acl == DENY_UNLESS_ACCEPTED)
 235                 return HOSTAPD_ACL_REJECT;
 236
 237         return HOSTAPD_ACL_PENDING;
 238 }
 239
 240
 241 /**
 242  * hostapd_allowed_address - Check whether a specified STA can be authenticated
 243  * @hapd: hostapd BSS data
 244  * @addr: MAC address of the STA
 245  * @msg: Authentication message
 246  * @len: Length of msg in octets
 247  * @session_timeout: Buffer for returning session timeout (from RADIUS)
 248  * @acct_interim_interval: Buffer for returning account interval (from RADIUS)
 249  * @vlan_id: Buffer for returning VLAN ID
 250  * @psk: Linked list buffer for returning WPA PSK
 251  * @identity: Buffer for returning identity (from RADIUS)
 252  * @radius_cui: Buffer for returning CUI (from RADIUS)
 253  * Returns: HOSTAPD_ACL_ACCEPT, HOSTAPD_ACL_REJECT, or HOSTAPD_ACL_PENDING
 254  *
 255  * The caller is responsible for freeing the returned *identity and *radius_cui
 256  * values with os_free().
 257  */
 258 int hostapd_allowed_address(struct hostapd_data *hapd, const u8 *addr,
 259                             const u8 *msg, size_t len, u32 *session_timeout,
 260                             u32 *acct_interim_interval, int *vlan_id,
 261                             struct hostapd_sta_wpa_psk_short **psk,
 262                             char **identity, char **radius_cui)
 263 {
 264         int res;
 265
 266         if (session_timeout)
 267                 *session_timeout = 0;
 268         if (acct_interim_interval)
 269                 *acct_interim_interval = 0;
 270         if (vlan_id)
 271                 *vlan_id = 0;
 272         if (psk)
 273                 *psk = NULL;
 274         if (identity)
 275                 *identity = NULL;
 276         if (radius_cui)
 277                 *radius_cui = NULL;
 278
 279         res = hostapd_check_acl(hapd, addr, vlan_id);
 280         if (res != HOSTAPD_ACL_PENDING)
 281                 return res;
 282
 283         if (hapd->conf->macaddr_acl == USE_EXTERNAL_RADIUS_AUTH) {
 284 #ifdef CONFIG_NO_RADIUS
 285                 return HOSTAPD_ACL_REJECT;
 286 #else /* CONFIG_NO_RADIUS */
 287                 struct hostapd_acl_query_data *query;
 288
 289                 /* Check whether ACL cache has an entry for this station */
 290                 res = hostapd_acl_cache_get(hapd, addr, session_timeout,
 291                                             acct_interim_interval, vlan_id, psk,
 292                                             identity, radius_cui);
 293                 if (res == HOSTAPD_ACL_ACCEPT ||
 294                     res == HOSTAPD_ACL_ACCEPT_TIMEOUT)
 295                         return res;
 296                 if (res == HOSTAPD_ACL_REJECT)
 297                         return HOSTAPD_ACL_REJECT;
 298
 299                 query = hapd->acl_queries;
 300                 while (query) {
 301                         if (os_memcmp(query->addr, addr, ETH_ALEN) == 0) {
 302                                 /* pending query in RADIUS retransmit queue;
 303                                  * do not generate a new one */
 304                                 if (identity) {
 305                                         os_free(*identity);
 306                                         *identity = NULL;
 307                                 }
 308                                 if (radius_cui) {
 309                                         os_free(*radius_cui);
 310                                         *radius_cui = NULL;
 311                                 }
 312                                 return HOSTAPD_ACL_PENDING;
 313                         }
 314                         query = query->next;
 315                 }
 316
 317                 if (!hapd->conf->radius->auth_server)
 318                         return HOSTAPD_ACL_REJECT;
 319
 320                 /* No entry in the cache - query external RADIUS server */
 321                 query = os_zalloc(sizeof(*query));
 322                 if (query == NULL) {
 323                         wpa_printf(MSG_ERROR, "malloc for query data failed");
 324                         return HOSTAPD_ACL_REJECT;
 325                 }
 326                 os_get_reltime(&query->timestamp);
 327                 os_memcpy(query->addr, addr, ETH_ALEN);
 328                 if (hostapd_radius_acl_query(hapd, addr, query)) {
 329                         wpa_printf(MSG_DEBUG, "Failed to send Access-Request "
 330                                    "for ACL query.");
 331                         hostapd_acl_query_free(query);
 332                         return HOSTAPD_ACL_REJECT;
 333                 }
 334
 335                 query->auth_msg = os_malloc(len);
 336                 if (query->auth_msg == NULL) {
 337                         wpa_printf(MSG_ERROR, "Failed to allocate memory for "
 338                                    "auth frame.");
 339                         hostapd_acl_query_free(query);
 340                         return HOSTAPD_ACL_REJECT;
 341                 }
 342                 os_memcpy(query->auth_msg, msg, len);
 343                 query->auth_msg_len = len;
 344                 query->next = hapd->acl_queries;
 345                 hapd->acl_queries = query;
 346
 347                 /* Queued data will be processed in hostapd_acl_recv_radius()
 348                  * when RADIUS server replies to the sent Access-Request. */
 349                 return HOSTAPD_ACL_PENDING;
 350 #endif /* CONFIG_NO_RADIUS */
 351         }
 352
 353         return HOSTAPD_ACL_REJECT;
 354 }
 355
 356
 357 #ifndef CONFIG_NO_RADIUS
 358 static void hostapd_acl_expire_cache(struct hostapd_data *hapd,
 359                                      struct os_reltime *now)
 360 {
 361         struct hostapd_cached_radius_acl *prev, *entry, *tmp;
 362
 363         prev = NULL;
 364         entry = hapd->acl_cache;
 365
 366         while (entry) {
 367                 if (os_reltime_expired(now, &entry->timestamp,
 368                                        RADIUS_ACL_TIMEOUT)) {
 369                         wpa_printf(MSG_DEBUG, "Cached ACL entry for " MACSTR
 370                                    " has expired.", MAC2STR(entry->addr));
 371                         if (prev)
 372                                 prev->next = entry->next;
 373                         else
 374                                 hapd->acl_cache = entry->next;
 375                         hostapd_drv_set_radius_acl_expire(hapd, entry->addr);
 376                         tmp = entry;
 377                         entry = entry->next;
 378                         hostapd_acl_cache_free_entry(tmp);
 379                         continue;
 380                 }
 381
 382                 prev = entry;
 383                 entry = entry->next;
 384         }
 385 }
 386
 387
 388 static void hostapd_acl_expire_queries(struct hostapd_data *hapd,
 389                                        struct os_reltime *now)
 390 {
 391         struct hostapd_acl_query_data *prev, *entry, *tmp;
 392
 393         prev = NULL;
 394         entry = hapd->acl_queries;
 395
 396         while (entry) {
 397                 if (os_reltime_expired(now, &entry->timestamp,
 398                                        RADIUS_ACL_TIMEOUT)) {
 399                         wpa_printf(MSG_DEBUG, "ACL query for " MACSTR
 400                                    " has expired.", MAC2STR(entry->addr));
 401                         if (prev)
 402                                 prev->next = entry->next;
 403                         else
 404                                 hapd->acl_queries = entry->next;
 405
 406                         tmp = entry;
 407                         entry = entry->next;
 408                         hostapd_acl_query_free(tmp);
 409                         continue;
 410                 }
 411
 412                 prev = entry;
 413                 entry = entry->next;
 414         }
 415 }
 416
 417
 418 /**
 419  * hostapd_acl_expire - ACL cache expiration callback
 420  * @hapd: struct hostapd_data *
 421  */
 422 void hostapd_acl_expire(struct hostapd_data *hapd)
 423 {
 424         struct os_reltime now;
 425
 426         os_get_reltime(&now);
 427         hostapd_acl_expire_cache(hapd, &now);
 428         hostapd_acl_expire_queries(hapd, &now);
 429 }
 430
 431
 432 static void decode_tunnel_passwords(struct hostapd_data *hapd,
 433                                     const u8 *shared_secret,
 434                                     size_t shared_secret_len,
 435                                     struct radius_msg *msg,
 436                                     struct radius_msg *req,
 437                                     struct hostapd_cached_radius_acl *cache)
 438 {
 439         int passphraselen;
 440         char *passphrase, *strpassphrase;
 441         size_t i;
 442         struct hostapd_sta_wpa_psk_short *psk;
 443
 444         /*
 445          * Decode all tunnel passwords as PSK and save them into a linked list.
 446          */
 447         for (i = 0; ; i++) {
 448                 passphrase = radius_msg_get_tunnel_password(
 449                         msg, &passphraselen, shared_secret, shared_secret_len,
 450                         req, i);
 451                 /*
 452                  * Passphrase is NULL iff there is no i-th Tunnel-Password
 453                  * attribute in msg.
 454                  */
 455                 if (passphrase == NULL)
 456                         break;
 457                 /*
 458                  * passphrase does not contain the NULL termination.
 459                  * Add it here as pbkdf2_sha1() requires it.
 460                  */
 461                 strpassphrase = os_zalloc(passphraselen + 1);
 462                 psk = os_zalloc(sizeof(struct hostapd_sta_wpa_psk_short));
 463                 if (strpassphrase && psk) {
 464                         os_memcpy(strpassphrase, passphrase, passphraselen);
 465                         pbkdf2_sha1(strpassphrase,
 466                                     hapd->conf->ssid.ssid,
 467                                     hapd->conf->ssid.ssid_len, 4096,
 468                                     psk->psk, PMK_LEN);
 469                         psk->next = cache->psk;
 470                         cache->psk = psk;
 471                         psk = NULL;
 472                 }
 473                 os_free(strpassphrase);
 474                 os_free(psk);
 475                 os_free(passphrase);
 476         }
 477 }
 478
 479
 480 /**
 481  * hostapd_acl_recv_radius - Process incoming RADIUS Authentication messages
 482  * @msg: RADIUS response message
 483  * @req: RADIUS request message
 484  * @shared_secret: RADIUS shared secret
 485  * @shared_secret_len: Length of shared_secret in octets
 486  * @data: Context data (struct hostapd_data *)
 487  * Returns: RADIUS_RX_PROCESSED if RADIUS message was a reply to ACL query (and
 488  * was processed here) or RADIUS_RX_UNKNOWN if not.
 489  */
 490 static RadiusRxResult
 491 hostapd_acl_recv_radius(struct radius_msg *msg, struct radius_msg *req,
 492                         const u8 *shared_secret, size_t shared_secret_len,
 493                         void *data)
 494 {
 495         struct hostapd_data *hapd = data;
 496         struct hostapd_acl_query_data *query, *prev;
 497         struct hostapd_cached_radius_acl *cache;
 498         struct radius_hdr *hdr = radius_msg_get_hdr(msg);
 499
 500         query = hapd->acl_queries;
 501         prev = NULL;
 502         while (query) {
 503                 if (query->radius_id == hdr->identifier)
 504                         break;
 505                 prev = query;
 506                 query = query->next;
 507         }
 508         if (query == NULL)
 509                 return RADIUS_RX_UNKNOWN;
 510
 511         wpa_printf(MSG_DEBUG, "Found matching Access-Request for RADIUS "
 512                    "message (id=%d)", query->radius_id);
 513
 514         if (radius_msg_verify(msg, shared_secret, shared_secret_len, req, 0)) {
 515                 wpa_printf(MSG_INFO, "Incoming RADIUS packet did not have "
 516                            "correct authenticator - dropped\n");
 517                 return RADIUS_RX_INVALID_AUTHENTICATOR;
 518         }
 519
 520         if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
 521             hdr->code != RADIUS_CODE_ACCESS_REJECT) {
 522                 wpa_printf(MSG_DEBUG, "Unknown RADIUS message code %d to ACL "
 523                            "query", hdr->code);
 524                 return RADIUS_RX_UNKNOWN;
 525         }
 526
 527         /* Insert Accept/Reject info into ACL cache */
 528         cache = os_zalloc(sizeof(*cache));
 529         if (cache == NULL) {
 530                 wpa_printf(MSG_DEBUG, "Failed to add ACL cache entry");
 531                 goto done;
 532         }
 533         os_get_reltime(&cache->timestamp);
 534         os_memcpy(cache->addr, query->addr, sizeof(cache->addr));
 535         if (hdr->code == RADIUS_CODE_ACCESS_ACCEPT) {
 536                 u8 *buf;
 537                 size_t len;
 538
 539                 if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
 540                                               &cache->session_timeout) == 0)
 541                         cache->accepted = HOSTAPD_ACL_ACCEPT_TIMEOUT;
 542                 else
 543                         cache->accepted = HOSTAPD_ACL_ACCEPT;
 544
 545                 if (radius_msg_get_attr_int32(
 546                             msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
 547                             &cache->acct_interim_interval) == 0 &&
 548                     cache->acct_interim_interval < 60) {
 549                         wpa_printf(MSG_DEBUG, "Ignored too small "
 550                                    "Acct-Interim-Interval %d for STA " MACSTR,
 551                                    cache->acct_interim_interval,
 552                                    MAC2STR(query->addr));
 553                         cache->acct_interim_interval = 0;
 554                 }
 555
 556                 cache->vlan_id = radius_msg_get_vlanid(msg);
 557
 558                 decode_tunnel_passwords(hapd, shared_secret, shared_secret_len,
 559                                         msg, req, cache);
 560
 561                 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME,
 562                                             &buf, &len, NULL) == 0) {
 563                         cache->identity = os_zalloc(len + 1);
 564                         if (cache->identity)
 565                                 os_memcpy(cache->identity, buf, len);
 566                 }
 567                 if (radius_msg_get_attr_ptr(
 568                             msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
 569                             &buf, &len, NULL) == 0) {
 570                         cache->radius_cui = os_zalloc(len + 1);
 571                         if (cache->radius_cui)
 572                                 os_memcpy(cache->radius_cui, buf, len);
 573                 }
 574
 575                 if (hapd->conf->wpa_psk_radius == PSK_RADIUS_REQUIRED &&
 576                     !cache->psk)
 577                         cache->accepted = HOSTAPD_ACL_REJECT;
 578
 579                 if (cache->vlan_id &&
 580                     !hostapd_vlan_id_valid(hapd->conf->vlan, cache->vlan_id)) {
 581                         hostapd_logger(hapd, query->addr,
 582                                        HOSTAPD_MODULE_RADIUS,
 583                                        HOSTAPD_LEVEL_INFO,
 584                                        "Invalid VLAN ID %d received from RADIUS server",
 585                                        cache->vlan_id);
 586                         cache->vlan_id = 0;
 587                 }
 588                 if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_REQUIRED &&
 589                     !cache->vlan_id)
 590                         cache->accepted = HOSTAPD_ACL_REJECT;
 591         } else
 592                 cache->accepted = HOSTAPD_ACL_REJECT;
 593         cache->next = hapd->acl_cache;
 594         hapd->acl_cache = cache;
 595
 596 #ifdef CONFIG_DRIVER_RADIUS_ACL
 597         hostapd_drv_set_radius_acl_auth(hapd, query->addr, cache->accepted,
 598                                         cache->session_timeout);
 599 #else /* CONFIG_DRIVER_RADIUS_ACL */
 600 #ifdef NEED_AP_MLME
 601         /* Re-send original authentication frame for 802.11 processing */
 602         wpa_printf(MSG_DEBUG, "Re-sending authentication frame after "
 603                    "successful RADIUS ACL query");
 604         ieee802_11_mgmt(hapd, query->auth_msg, query->auth_msg_len, NULL);
 605 #endif /* NEED_AP_MLME */
 606 #endif /* CONFIG_DRIVER_RADIUS_ACL */
 607
 608  done:
 609         if (prev == NULL)
 610                 hapd->acl_queries = query->next;
 611         else
 612                 prev->next = query->next;
 613
 614         hostapd_acl_query_free(query);
 615
 616         return RADIUS_RX_PROCESSED;
 617 }
 618 #endif /* CONFIG_NO_RADIUS */
 619
 620
 621 /**
 622  * hostapd_acl_init: Initialize IEEE 802.11 ACL
 623  * @hapd: hostapd BSS data
 624  * Returns: 0 on success, -1 on failure
 625  */
 626 int hostapd_acl_init(struct hostapd_data *hapd)
 627 {
 628 #ifndef CONFIG_NO_RADIUS
 629         if (radius_client_register(hapd->radius, RADIUS_AUTH,
 630                                    hostapd_acl_recv_radius, hapd))
 631                 return -1;
 632 #endif /* CONFIG_NO_RADIUS */
 633
 634         return 0;
 635 }
 636
 637
 638 /**
 639  * hostapd_acl_deinit - Deinitialize IEEE 802.11 ACL
 640  * @hapd: hostapd BSS data
 641  */
 642 void hostapd_acl_deinit(struct hostapd_data *hapd)
 643 {
 644         struct hostapd_acl_query_data *query, *prev;
 645
 646 #ifndef CONFIG_NO_RADIUS
 647         hostapd_acl_cache_free(hapd->acl_cache);
 648 #endif /* CONFIG_NO_RADIUS */
 649
 650         query = hapd->acl_queries;
 651         while (query) {
 652                 prev = query;
 653                 query = query->next;
 654                 hostapd_acl_query_free(prev);
 655         }
 656 }
 657
 658
 659 void hostapd_free_psk_list(struct hostapd_sta_wpa_psk_short *psk)
 660 {
 661         while (psk) {
 662                 struct hostapd_sta_wpa_psk_short *prev = psk;
 663                 psk = psk->next;
 664                 os_free(prev);
 665         }
 666 }