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
hostapd_acl_cache_free_entry(struct hostapd_cached_radius_acl * e)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
hostapd_acl_cache_free(struct hostapd_cached_radius_acl * acl_cache)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
copy_psk_list(struct hostapd_sta_wpa_psk_short ** psk,struct hostapd_sta_wpa_psk_short * src)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
hostapd_acl_cache_get(struct hostapd_data * hapd,const u8 * addr,u32 * session_timeout,u32 * acct_interim_interval,int * vlan_id,struct hostapd_sta_wpa_psk_short ** psk,char ** identity,char ** radius_cui)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
hostapd_acl_query_free(struct hostapd_acl_query_data * query)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
hostapd_radius_acl_query(struct hostapd_data * hapd,const u8 * addr,struct hostapd_acl_query_data * query)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_allowed_address - Check whether a specified STA can be authenticated
217 * @hapd: hostapd BSS data
218 * @addr: MAC address of the STA
219 * @msg: Authentication message
220 * @len: Length of msg in octets
221 * @session_timeout: Buffer for returning session timeout (from RADIUS)
222 * @acct_interim_interval: Buffer for returning account interval (from RADIUS)
223 * @vlan_id: Buffer for returning VLAN ID
224 * @psk: Linked list buffer for returning WPA PSK
225 * @identity: Buffer for returning identity (from RADIUS)
226 * @radius_cui: Buffer for returning CUI (from RADIUS)
227 * Returns: HOSTAPD_ACL_ACCEPT, HOSTAPD_ACL_REJECT, or HOSTAPD_ACL_PENDING
228 *
229 * The caller is responsible for freeing the returned *identity and *radius_cui
230 * values with os_free().
231 */
hostapd_allowed_address(struct hostapd_data * hapd,const u8 * addr,const u8 * msg,size_t len,u32 * session_timeout,u32 * acct_interim_interval,int * vlan_id,struct hostapd_sta_wpa_psk_short ** psk,char ** identity,char ** radius_cui)232 int hostapd_allowed_address(struct hostapd_data *hapd, const u8 *addr,
233 const u8 *msg, size_t len, u32 *session_timeout,
234 u32 *acct_interim_interval, int *vlan_id,
235 struct hostapd_sta_wpa_psk_short **psk,
236 char **identity, char **radius_cui)
237 {
238 if (session_timeout)
239 *session_timeout = 0;
240 if (acct_interim_interval)
241 *acct_interim_interval = 0;
242 if (vlan_id)
243 *vlan_id = 0;
244 if (psk)
245 *psk = NULL;
246 if (identity)
247 *identity = NULL;
248 if (radius_cui)
249 *radius_cui = NULL;
250
251 if (hostapd_maclist_found(hapd->conf->accept_mac,
252 hapd->conf->num_accept_mac, addr, vlan_id))
253 return HOSTAPD_ACL_ACCEPT;
254
255 if (hostapd_maclist_found(hapd->conf->deny_mac,
256 hapd->conf->num_deny_mac, addr, vlan_id))
257 return HOSTAPD_ACL_REJECT;
258
259 if (hapd->conf->macaddr_acl == ACCEPT_UNLESS_DENIED)
260 return HOSTAPD_ACL_ACCEPT;
261 if (hapd->conf->macaddr_acl == DENY_UNLESS_ACCEPTED)
262 return HOSTAPD_ACL_REJECT;
263
264 if (hapd->conf->macaddr_acl == USE_EXTERNAL_RADIUS_AUTH) {
265 #ifdef CONFIG_NO_RADIUS
266 return HOSTAPD_ACL_REJECT;
267 #else /* CONFIG_NO_RADIUS */
268 struct hostapd_acl_query_data *query;
269
270 /* Check whether ACL cache has an entry for this station */
271 int res = hostapd_acl_cache_get(hapd, addr, session_timeout,
272 acct_interim_interval,
273 vlan_id, psk,
274 identity, radius_cui);
275 if (res == HOSTAPD_ACL_ACCEPT ||
276 res == HOSTAPD_ACL_ACCEPT_TIMEOUT)
277 return res;
278 if (res == HOSTAPD_ACL_REJECT)
279 return HOSTAPD_ACL_REJECT;
280
281 query = hapd->acl_queries;
282 while (query) {
283 if (os_memcmp(query->addr, addr, ETH_ALEN) == 0) {
284 /* pending query in RADIUS retransmit queue;
285 * do not generate a new one */
286 if (identity) {
287 os_free(*identity);
288 *identity = NULL;
289 }
290 if (radius_cui) {
291 os_free(*radius_cui);
292 *radius_cui = NULL;
293 }
294 return HOSTAPD_ACL_PENDING;
295 }
296 query = query->next;
297 }
298
299 if (!hapd->conf->radius->auth_server)
300 return HOSTAPD_ACL_REJECT;
301
302 /* No entry in the cache - query external RADIUS server */
303 query = os_zalloc(sizeof(*query));
304 if (query == NULL) {
305 wpa_printf(MSG_ERROR, "malloc for query data failed");
306 return HOSTAPD_ACL_REJECT;
307 }
308 os_get_reltime(&query->timestamp);
309 os_memcpy(query->addr, addr, ETH_ALEN);
310 if (hostapd_radius_acl_query(hapd, addr, query)) {
311 wpa_printf(MSG_DEBUG, "Failed to send Access-Request "
312 "for ACL query.");
313 hostapd_acl_query_free(query);
314 return HOSTAPD_ACL_REJECT;
315 }
316
317 query->auth_msg = os_malloc(len);
318 if (query->auth_msg == NULL) {
319 wpa_printf(MSG_ERROR, "Failed to allocate memory for "
320 "auth frame.");
321 hostapd_acl_query_free(query);
322 return HOSTAPD_ACL_REJECT;
323 }
324 os_memcpy(query->auth_msg, msg, len);
325 query->auth_msg_len = len;
326 query->next = hapd->acl_queries;
327 hapd->acl_queries = query;
328
329 /* Queued data will be processed in hostapd_acl_recv_radius()
330 * when RADIUS server replies to the sent Access-Request. */
331 return HOSTAPD_ACL_PENDING;
332 #endif /* CONFIG_NO_RADIUS */
333 }
334
335 return HOSTAPD_ACL_REJECT;
336 }
337
338
339 #ifndef CONFIG_NO_RADIUS
hostapd_acl_expire_cache(struct hostapd_data * hapd,struct os_reltime * now)340 static void hostapd_acl_expire_cache(struct hostapd_data *hapd,
341 struct os_reltime *now)
342 {
343 struct hostapd_cached_radius_acl *prev, *entry, *tmp;
344
345 prev = NULL;
346 entry = hapd->acl_cache;
347
348 while (entry) {
349 if (os_reltime_expired(now, &entry->timestamp,
350 RADIUS_ACL_TIMEOUT)) {
351 wpa_printf(MSG_DEBUG, "Cached ACL entry for " MACSTR
352 " has expired.", MAC2STR(entry->addr));
353 if (prev)
354 prev->next = entry->next;
355 else
356 hapd->acl_cache = entry->next;
357 hostapd_drv_set_radius_acl_expire(hapd, entry->addr);
358 tmp = entry;
359 entry = entry->next;
360 hostapd_acl_cache_free_entry(tmp);
361 continue;
362 }
363
364 prev = entry;
365 entry = entry->next;
366 }
367 }
368
369
hostapd_acl_expire_queries(struct hostapd_data * hapd,struct os_reltime * now)370 static void hostapd_acl_expire_queries(struct hostapd_data *hapd,
371 struct os_reltime *now)
372 {
373 struct hostapd_acl_query_data *prev, *entry, *tmp;
374
375 prev = NULL;
376 entry = hapd->acl_queries;
377
378 while (entry) {
379 if (os_reltime_expired(now, &entry->timestamp,
380 RADIUS_ACL_TIMEOUT)) {
381 wpa_printf(MSG_DEBUG, "ACL query for " MACSTR
382 " has expired.", MAC2STR(entry->addr));
383 if (prev)
384 prev->next = entry->next;
385 else
386 hapd->acl_queries = entry->next;
387
388 tmp = entry;
389 entry = entry->next;
390 hostapd_acl_query_free(tmp);
391 continue;
392 }
393
394 prev = entry;
395 entry = entry->next;
396 }
397 }
398
399
400 /**
401 * hostapd_acl_expire - ACL cache expiration callback
402 * @eloop_ctx: struct hostapd_data *
403 * @timeout_ctx: Not used
404 */
hostapd_acl_expire(void * eloop_ctx,void * timeout_ctx)405 static void hostapd_acl_expire(void *eloop_ctx, void *timeout_ctx)
406 {
407 struct hostapd_data *hapd = eloop_ctx;
408 struct os_reltime now;
409
410 os_get_reltime(&now);
411 hostapd_acl_expire_cache(hapd, &now);
412 hostapd_acl_expire_queries(hapd, &now);
413
414 eloop_register_timeout(10, 0, hostapd_acl_expire, hapd, NULL);
415 }
416
417
decode_tunnel_passwords(struct hostapd_data * hapd,const u8 * shared_secret,size_t shared_secret_len,struct radius_msg * msg,struct radius_msg * req,struct hostapd_cached_radius_acl * cache)418 static void decode_tunnel_passwords(struct hostapd_data *hapd,
419 const u8 *shared_secret,
420 size_t shared_secret_len,
421 struct radius_msg *msg,
422 struct radius_msg *req,
423 struct hostapd_cached_radius_acl *cache)
424 {
425 int passphraselen;
426 char *passphrase, *strpassphrase;
427 size_t i;
428 struct hostapd_sta_wpa_psk_short *psk;
429
430 /*
431 * Decode all tunnel passwords as PSK and save them into a linked list.
432 */
433 for (i = 0; ; i++) {
434 passphrase = radius_msg_get_tunnel_password(
435 msg, &passphraselen, shared_secret, shared_secret_len,
436 req, i);
437 /*
438 * Passphrase is NULL iff there is no i-th Tunnel-Password
439 * attribute in msg.
440 */
441 if (passphrase == NULL)
442 break;
443 /*
444 * passphrase does not contain the NULL termination.
445 * Add it here as pbkdf2_sha1() requires it.
446 */
447 strpassphrase = os_zalloc(passphraselen + 1);
448 psk = os_zalloc(sizeof(struct hostapd_sta_wpa_psk_short));
449 if (strpassphrase && psk) {
450 os_memcpy(strpassphrase, passphrase, passphraselen);
451 pbkdf2_sha1(strpassphrase,
452 hapd->conf->ssid.ssid,
453 hapd->conf->ssid.ssid_len, 4096,
454 psk->psk, PMK_LEN);
455 psk->next = cache->psk;
456 cache->psk = psk;
457 psk = NULL;
458 }
459 os_free(strpassphrase);
460 os_free(psk);
461 os_free(passphrase);
462 }
463 }
464
465
466 /**
467 * hostapd_acl_recv_radius - Process incoming RADIUS Authentication messages
468 * @msg: RADIUS response message
469 * @req: RADIUS request message
470 * @shared_secret: RADIUS shared secret
471 * @shared_secret_len: Length of shared_secret in octets
472 * @data: Context data (struct hostapd_data *)
473 * Returns: RADIUS_RX_PROCESSED if RADIUS message was a reply to ACL query (and
474 * was processed here) or RADIUS_RX_UNKNOWN if not.
475 */
476 static RadiusRxResult
hostapd_acl_recv_radius(struct radius_msg * msg,struct radius_msg * req,const u8 * shared_secret,size_t shared_secret_len,void * data)477 hostapd_acl_recv_radius(struct radius_msg *msg, struct radius_msg *req,
478 const u8 *shared_secret, size_t shared_secret_len,
479 void *data)
480 {
481 struct hostapd_data *hapd = data;
482 struct hostapd_acl_query_data *query, *prev;
483 struct hostapd_cached_radius_acl *cache;
484 struct radius_hdr *hdr = radius_msg_get_hdr(msg);
485
486 query = hapd->acl_queries;
487 prev = NULL;
488 while (query) {
489 if (query->radius_id == hdr->identifier)
490 break;
491 prev = query;
492 query = query->next;
493 }
494 if (query == NULL)
495 return RADIUS_RX_UNKNOWN;
496
497 wpa_printf(MSG_DEBUG, "Found matching Access-Request for RADIUS "
498 "message (id=%d)", query->radius_id);
499
500 if (radius_msg_verify(msg, shared_secret, shared_secret_len, req, 0)) {
501 wpa_printf(MSG_INFO, "Incoming RADIUS packet did not have "
502 "correct authenticator - dropped\n");
503 return RADIUS_RX_INVALID_AUTHENTICATOR;
504 }
505
506 if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
507 hdr->code != RADIUS_CODE_ACCESS_REJECT) {
508 wpa_printf(MSG_DEBUG, "Unknown RADIUS message code %d to ACL "
509 "query", hdr->code);
510 return RADIUS_RX_UNKNOWN;
511 }
512
513 /* Insert Accept/Reject info into ACL cache */
514 cache = os_zalloc(sizeof(*cache));
515 if (cache == NULL) {
516 wpa_printf(MSG_DEBUG, "Failed to add ACL cache entry");
517 goto done;
518 }
519 os_get_reltime(&cache->timestamp);
520 os_memcpy(cache->addr, query->addr, sizeof(cache->addr));
521 if (hdr->code == RADIUS_CODE_ACCESS_ACCEPT) {
522 u8 *buf;
523 size_t len;
524
525 if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
526 &cache->session_timeout) == 0)
527 cache->accepted = HOSTAPD_ACL_ACCEPT_TIMEOUT;
528 else
529 cache->accepted = HOSTAPD_ACL_ACCEPT;
530
531 if (radius_msg_get_attr_int32(
532 msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
533 &cache->acct_interim_interval) == 0 &&
534 cache->acct_interim_interval < 60) {
535 wpa_printf(MSG_DEBUG, "Ignored too small "
536 "Acct-Interim-Interval %d for STA " MACSTR,
537 cache->acct_interim_interval,
538 MAC2STR(query->addr));
539 cache->acct_interim_interval = 0;
540 }
541
542 cache->vlan_id = radius_msg_get_vlanid(msg);
543
544 decode_tunnel_passwords(hapd, shared_secret, shared_secret_len,
545 msg, req, cache);
546
547 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME,
548 &buf, &len, NULL) == 0) {
549 cache->identity = os_zalloc(len + 1);
550 if (cache->identity)
551 os_memcpy(cache->identity, buf, len);
552 }
553 if (radius_msg_get_attr_ptr(
554 msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
555 &buf, &len, NULL) == 0) {
556 cache->radius_cui = os_zalloc(len + 1);
557 if (cache->radius_cui)
558 os_memcpy(cache->radius_cui, buf, len);
559 }
560
561 if (hapd->conf->wpa_psk_radius == PSK_RADIUS_REQUIRED &&
562 !cache->psk)
563 cache->accepted = HOSTAPD_ACL_REJECT;
564 } else
565 cache->accepted = HOSTAPD_ACL_REJECT;
566 cache->next = hapd->acl_cache;
567 hapd->acl_cache = cache;
568
569 #ifdef CONFIG_DRIVER_RADIUS_ACL
570 hostapd_drv_set_radius_acl_auth(hapd, query->addr, cache->accepted,
571 cache->session_timeout);
572 #else /* CONFIG_DRIVER_RADIUS_ACL */
573 #ifdef NEED_AP_MLME
574 /* Re-send original authentication frame for 802.11 processing */
575 wpa_printf(MSG_DEBUG, "Re-sending authentication frame after "
576 "successful RADIUS ACL query");
577 ieee802_11_mgmt(hapd, query->auth_msg, query->auth_msg_len, NULL);
578 #endif /* NEED_AP_MLME */
579 #endif /* CONFIG_DRIVER_RADIUS_ACL */
580
581 done:
582 if (prev == NULL)
583 hapd->acl_queries = query->next;
584 else
585 prev->next = query->next;
586
587 hostapd_acl_query_free(query);
588
589 return RADIUS_RX_PROCESSED;
590 }
591 #endif /* CONFIG_NO_RADIUS */
592
593
594 /**
595 * hostapd_acl_init: Initialize IEEE 802.11 ACL
596 * @hapd: hostapd BSS data
597 * Returns: 0 on success, -1 on failure
598 */
hostapd_acl_init(struct hostapd_data * hapd)599 int hostapd_acl_init(struct hostapd_data *hapd)
600 {
601 #ifndef CONFIG_NO_RADIUS
602 if (radius_client_register(hapd->radius, RADIUS_AUTH,
603 hostapd_acl_recv_radius, hapd))
604 return -1;
605
606 eloop_register_timeout(10, 0, hostapd_acl_expire, hapd, NULL);
607 #endif /* CONFIG_NO_RADIUS */
608
609 return 0;
610 }
611
612
613 /**
614 * hostapd_acl_deinit - Deinitialize IEEE 802.11 ACL
615 * @hapd: hostapd BSS data
616 */
hostapd_acl_deinit(struct hostapd_data * hapd)617 void hostapd_acl_deinit(struct hostapd_data *hapd)
618 {
619 struct hostapd_acl_query_data *query, *prev;
620
621 #ifndef CONFIG_NO_RADIUS
622 eloop_cancel_timeout(hostapd_acl_expire, hapd, NULL);
623
624 hostapd_acl_cache_free(hapd->acl_cache);
625 #endif /* CONFIG_NO_RADIUS */
626
627 query = hapd->acl_queries;
628 while (query) {
629 prev = query;
630 query = query->next;
631 hostapd_acl_query_free(prev);
632 }
633 }
634
635
hostapd_free_psk_list(struct hostapd_sta_wpa_psk_short * psk)636 void hostapd_free_psk_list(struct hostapd_sta_wpa_psk_short *psk)
637 {
638 while (psk) {
639 struct hostapd_sta_wpa_psk_short *prev = psk;
640 psk = psk->next;
641 os_free(prev);
642 }
643 }
644