Line data Source code
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 5 : static void hostapd_acl_cache_free_entry(struct hostapd_cached_radius_acl *e)
57 : {
58 5 : os_free(e->identity);
59 5 : os_free(e->radius_cui);
60 5 : hostapd_free_psk_list(e->psk);
61 5 : os_free(e);
62 5 : }
63 :
64 :
65 987 : static void hostapd_acl_cache_free(struct hostapd_cached_radius_acl *acl_cache)
66 : {
67 : struct hostapd_cached_radius_acl *prev;
68 :
69 1979 : while (acl_cache) {
70 5 : prev = acl_cache;
71 5 : acl_cache = acl_cache->next;
72 5 : hostapd_acl_cache_free_entry(prev);
73 : }
74 987 : }
75 :
76 :
77 6 : 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 6 : copy_to = psk;
85 6 : copy_from = src;
86 14 : while (copy_from && copy_to) {
87 2 : *copy_to = os_zalloc(sizeof(struct hostapd_sta_wpa_psk_short));
88 2 : if (*copy_to == NULL)
89 0 : break;
90 2 : os_memcpy(*copy_to, copy_from,
91 : sizeof(struct hostapd_sta_wpa_psk_short));
92 2 : copy_from = copy_from->next;
93 2 : copy_to = &((*copy_to)->next);
94 : }
95 6 : if (copy_to)
96 6 : *copy_to = NULL;
97 6 : }
98 :
99 :
100 11 : 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 11 : os_get_reltime(&now);
110 :
111 26 : for (entry = hapd->acl_cache; entry; entry = entry->next) {
112 8 : if (os_memcmp(entry->addr, addr, ETH_ALEN) != 0)
113 2 : continue;
114 :
115 6 : if (os_reltime_expired(&now, &entry->timestamp,
116 : RADIUS_ACL_TIMEOUT))
117 0 : return -1; /* entry has expired */
118 6 : if (entry->accepted == HOSTAPD_ACL_ACCEPT_TIMEOUT)
119 0 : if (session_timeout)
120 0 : *session_timeout = entry->session_timeout;
121 6 : if (acct_interim_interval)
122 6 : *acct_interim_interval =
123 6 : entry->acct_interim_interval;
124 6 : if (vlan_id)
125 6 : *vlan_id = entry->vlan_id;
126 6 : copy_psk_list(psk, entry->psk);
127 6 : if (identity) {
128 6 : if (entry->identity)
129 0 : *identity = os_strdup(entry->identity);
130 : else
131 6 : *identity = NULL;
132 : }
133 6 : if (radius_cui) {
134 6 : if (entry->radius_cui)
135 2 : *radius_cui = os_strdup(entry->radius_cui);
136 : else
137 4 : *radius_cui = NULL;
138 : }
139 6 : return entry->accepted;
140 : }
141 :
142 5 : return -1;
143 : }
144 : #endif /* CONFIG_NO_RADIUS */
145 :
146 :
147 5 : static void hostapd_acl_query_free(struct hostapd_acl_query_data *query)
148 : {
149 5 : if (query == NULL)
150 5 : return;
151 5 : os_free(query->auth_msg);
152 5 : os_free(query);
153 : }
154 :
155 :
156 : #ifndef CONFIG_NO_RADIUS
157 5 : 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 5 : query->radius_id = radius_client_get_id(hapd->radius);
164 5 : msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST, query->radius_id);
165 5 : if (msg == NULL)
166 0 : return -1;
167 :
168 5 : radius_msg_make_authenticator(msg, addr, ETH_ALEN);
169 :
170 5 : os_snprintf(buf, sizeof(buf), RADIUS_ADDR_FORMAT, MAC2STR(addr));
171 5 : if (!radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME, (u8 *) buf,
172 : os_strlen(buf))) {
173 0 : wpa_printf(MSG_DEBUG, "Could not add User-Name");
174 0 : goto fail;
175 : }
176 :
177 10 : if (!radius_msg_add_attr_user_password(
178 : msg, (u8 *) buf, os_strlen(buf),
179 5 : hapd->conf->radius->auth_server->shared_secret,
180 5 : hapd->conf->radius->auth_server->shared_secret_len)) {
181 0 : wpa_printf(MSG_DEBUG, "Could not add User-Password");
182 0 : goto fail;
183 : }
184 :
185 5 : if (add_common_radius_attr(hapd, hapd->conf->radius_auth_req_attr,
186 : NULL, msg) < 0)
187 0 : goto fail;
188 :
189 30 : os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
190 30 : MAC2STR(addr));
191 5 : if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
192 : (u8 *) buf, os_strlen(buf))) {
193 0 : wpa_printf(MSG_DEBUG, "Could not add Calling-Station-Id");
194 0 : goto fail;
195 : }
196 :
197 5 : os_snprintf(buf, sizeof(buf), "CONNECT 11Mbps 802.11b");
198 5 : if (!radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
199 : (u8 *) buf, os_strlen(buf))) {
200 0 : wpa_printf(MSG_DEBUG, "Could not add Connect-Info");
201 0 : goto fail;
202 : }
203 :
204 5 : if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, addr) < 0)
205 0 : goto fail;
206 5 : return 0;
207 :
208 : fail:
209 0 : radius_msg_free(msg);
210 0 : 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 : */
232 2553 : 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 2553 : if (session_timeout)
239 2553 : *session_timeout = 0;
240 2553 : if (acct_interim_interval)
241 2553 : *acct_interim_interval = 0;
242 2553 : if (vlan_id)
243 2553 : *vlan_id = 0;
244 2553 : if (psk)
245 2553 : *psk = NULL;
246 2553 : if (identity)
247 2553 : *identity = NULL;
248 2553 : if (radius_cui)
249 2553 : *radius_cui = NULL;
250 :
251 2553 : if (hostapd_maclist_found(hapd->conf->accept_mac,
252 2553 : hapd->conf->num_accept_mac, addr, vlan_id))
253 110 : return HOSTAPD_ACL_ACCEPT;
254 :
255 2443 : if (hostapd_maclist_found(hapd->conf->deny_mac,
256 2443 : hapd->conf->num_deny_mac, addr, vlan_id))
257 5 : return HOSTAPD_ACL_REJECT;
258 :
259 2438 : if (hapd->conf->macaddr_acl == ACCEPT_UNLESS_DENIED)
260 2423 : return HOSTAPD_ACL_ACCEPT;
261 15 : if (hapd->conf->macaddr_acl == DENY_UNLESS_ACCEPTED)
262 4 : return HOSTAPD_ACL_REJECT;
263 :
264 11 : if (hapd->conf->macaddr_acl == USE_EXTERNAL_RADIUS_AUTH) {
265 : #ifdef CONFIG_NO_RADIUS
266 0 : 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 11 : int res = hostapd_acl_cache_get(hapd, addr, session_timeout,
272 : acct_interim_interval,
273 : vlan_id, psk,
274 : identity, radius_cui);
275 11 : if (res == HOSTAPD_ACL_ACCEPT ||
276 : res == HOSTAPD_ACL_ACCEPT_TIMEOUT)
277 6 : return res;
278 5 : if (res == HOSTAPD_ACL_REJECT)
279 0 : return HOSTAPD_ACL_REJECT;
280 :
281 5 : query = hapd->acl_queries;
282 10 : while (query) {
283 0 : if (os_memcmp(query->addr, addr, ETH_ALEN) == 0) {
284 : /* pending query in RADIUS retransmit queue;
285 : * do not generate a new one */
286 0 : if (identity) {
287 0 : os_free(*identity);
288 0 : *identity = NULL;
289 : }
290 0 : if (radius_cui) {
291 0 : os_free(*radius_cui);
292 0 : *radius_cui = NULL;
293 : }
294 0 : return HOSTAPD_ACL_PENDING;
295 : }
296 0 : query = query->next;
297 : }
298 :
299 5 : if (!hapd->conf->radius->auth_server)
300 0 : return HOSTAPD_ACL_REJECT;
301 :
302 : /* No entry in the cache - query external RADIUS server */
303 5 : query = os_zalloc(sizeof(*query));
304 5 : if (query == NULL) {
305 0 : wpa_printf(MSG_ERROR, "malloc for query data failed");
306 0 : return HOSTAPD_ACL_REJECT;
307 : }
308 5 : os_get_reltime(&query->timestamp);
309 5 : os_memcpy(query->addr, addr, ETH_ALEN);
310 5 : if (hostapd_radius_acl_query(hapd, addr, query)) {
311 0 : wpa_printf(MSG_DEBUG, "Failed to send Access-Request "
312 : "for ACL query.");
313 0 : hostapd_acl_query_free(query);
314 0 : return HOSTAPD_ACL_REJECT;
315 : }
316 :
317 5 : query->auth_msg = os_malloc(len);
318 5 : if (query->auth_msg == NULL) {
319 0 : wpa_printf(MSG_ERROR, "Failed to allocate memory for "
320 : "auth frame.");
321 0 : hostapd_acl_query_free(query);
322 0 : return HOSTAPD_ACL_REJECT;
323 : }
324 5 : os_memcpy(query->auth_msg, msg, len);
325 5 : query->auth_msg_len = len;
326 5 : query->next = hapd->acl_queries;
327 5 : 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 5 : return HOSTAPD_ACL_PENDING;
332 : #endif /* CONFIG_NO_RADIUS */
333 : }
334 :
335 0 : return HOSTAPD_ACL_REJECT;
336 : }
337 :
338 :
339 : #ifndef CONFIG_NO_RADIUS
340 977 : 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 :
345 977 : prev = NULL;
346 977 : entry = hapd->acl_cache;
347 :
348 1954 : while (entry) {
349 0 : if (os_reltime_expired(now, &entry->timestamp,
350 : RADIUS_ACL_TIMEOUT)) {
351 0 : wpa_printf(MSG_DEBUG, "Cached ACL entry for " MACSTR
352 0 : " has expired.", MAC2STR(entry->addr));
353 0 : if (prev)
354 0 : prev->next = entry->next;
355 : else
356 0 : hapd->acl_cache = entry->next;
357 0 : hostapd_drv_set_radius_acl_expire(hapd, entry->addr);
358 0 : tmp = entry;
359 0 : entry = entry->next;
360 0 : hostapd_acl_cache_free_entry(tmp);
361 0 : continue;
362 : }
363 :
364 0 : prev = entry;
365 0 : entry = entry->next;
366 : }
367 977 : }
368 :
369 :
370 977 : 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 :
375 977 : prev = NULL;
376 977 : entry = hapd->acl_queries;
377 :
378 1954 : while (entry) {
379 0 : if (os_reltime_expired(now, &entry->timestamp,
380 : RADIUS_ACL_TIMEOUT)) {
381 0 : wpa_printf(MSG_DEBUG, "ACL query for " MACSTR
382 0 : " has expired.", MAC2STR(entry->addr));
383 0 : if (prev)
384 0 : prev->next = entry->next;
385 : else
386 0 : hapd->acl_queries = entry->next;
387 :
388 0 : tmp = entry;
389 0 : entry = entry->next;
390 0 : hostapd_acl_query_free(tmp);
391 0 : continue;
392 : }
393 :
394 0 : prev = entry;
395 0 : entry = entry->next;
396 : }
397 977 : }
398 :
399 :
400 : /**
401 : * hostapd_acl_expire - ACL cache expiration callback
402 : * @eloop_ctx: struct hostapd_data *
403 : * @timeout_ctx: Not used
404 : */
405 977 : static void hostapd_acl_expire(void *eloop_ctx, void *timeout_ctx)
406 : {
407 977 : struct hostapd_data *hapd = eloop_ctx;
408 : struct os_reltime now;
409 :
410 977 : os_get_reltime(&now);
411 977 : hostapd_acl_expire_cache(hapd, &now);
412 977 : hostapd_acl_expire_queries(hapd, &now);
413 :
414 977 : eloop_register_timeout(10, 0, hostapd_acl_expire, hapd, NULL);
415 977 : }
416 :
417 :
418 5 : 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 7 : for (i = 0; ; i++) {
434 7 : 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 7 : if (passphrase == NULL)
442 5 : break;
443 : /*
444 : * passphrase does not contain the NULL termination.
445 : * Add it here as pbkdf2_sha1() requires it.
446 : */
447 2 : strpassphrase = os_zalloc(passphraselen + 1);
448 2 : psk = os_zalloc(sizeof(struct hostapd_sta_wpa_psk_short));
449 2 : if (strpassphrase && psk) {
450 2 : os_memcpy(strpassphrase, passphrase, passphraselen);
451 4 : pbkdf2_sha1(strpassphrase,
452 2 : hapd->conf->ssid.ssid,
453 2 : hapd->conf->ssid.ssid_len, 4096,
454 2 : psk->psk, PMK_LEN);
455 2 : psk->next = cache->psk;
456 2 : cache->psk = psk;
457 2 : psk = NULL;
458 : }
459 2 : os_free(strpassphrase);
460 2 : os_free(psk);
461 2 : os_free(passphrase);
462 2 : }
463 5 : }
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
477 3274 : 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 3274 : struct hostapd_data *hapd = data;
482 : struct hostapd_acl_query_data *query, *prev;
483 : struct hostapd_cached_radius_acl *cache;
484 3274 : struct radius_hdr *hdr = radius_msg_get_hdr(msg);
485 :
486 3274 : query = hapd->acl_queries;
487 3274 : prev = NULL;
488 6548 : while (query) {
489 5 : if (query->radius_id == hdr->identifier)
490 5 : break;
491 0 : prev = query;
492 0 : query = query->next;
493 : }
494 3274 : if (query == NULL)
495 3269 : return RADIUS_RX_UNKNOWN;
496 :
497 5 : wpa_printf(MSG_DEBUG, "Found matching Access-Request for RADIUS "
498 5 : "message (id=%d)", query->radius_id);
499 :
500 5 : if (radius_msg_verify(msg, shared_secret, shared_secret_len, req, 0)) {
501 0 : wpa_printf(MSG_INFO, "Incoming RADIUS packet did not have "
502 : "correct authenticator - dropped\n");
503 0 : return RADIUS_RX_INVALID_AUTHENTICATOR;
504 : }
505 :
506 5 : if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
507 0 : hdr->code != RADIUS_CODE_ACCESS_REJECT) {
508 0 : wpa_printf(MSG_DEBUG, "Unknown RADIUS message code %d to ACL "
509 0 : "query", hdr->code);
510 0 : return RADIUS_RX_UNKNOWN;
511 : }
512 :
513 : /* Insert Accept/Reject info into ACL cache */
514 5 : cache = os_zalloc(sizeof(*cache));
515 5 : if (cache == NULL) {
516 0 : wpa_printf(MSG_DEBUG, "Failed to add ACL cache entry");
517 0 : goto done;
518 : }
519 5 : os_get_reltime(&cache->timestamp);
520 5 : os_memcpy(cache->addr, query->addr, sizeof(cache->addr));
521 5 : if (hdr->code == RADIUS_CODE_ACCESS_ACCEPT) {
522 : u8 *buf;
523 : size_t len;
524 :
525 5 : if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
526 : &cache->session_timeout) == 0)
527 0 : cache->accepted = HOSTAPD_ACL_ACCEPT_TIMEOUT;
528 : else
529 5 : cache->accepted = HOSTAPD_ACL_ACCEPT;
530 :
531 5 : if (radius_msg_get_attr_int32(
532 : msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
533 0 : &cache->acct_interim_interval) == 0 &&
534 0 : cache->acct_interim_interval < 60) {
535 0 : wpa_printf(MSG_DEBUG, "Ignored too small "
536 : "Acct-Interim-Interval %d for STA " MACSTR,
537 : cache->acct_interim_interval,
538 0 : MAC2STR(query->addr));
539 0 : cache->acct_interim_interval = 0;
540 : }
541 :
542 5 : cache->vlan_id = radius_msg_get_vlanid(msg);
543 :
544 5 : decode_tunnel_passwords(hapd, shared_secret, shared_secret_len,
545 : msg, req, cache);
546 :
547 5 : if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME,
548 : &buf, &len, NULL) == 0) {
549 0 : cache->identity = os_zalloc(len + 1);
550 0 : if (cache->identity)
551 0 : os_memcpy(cache->identity, buf, len);
552 : }
553 5 : if (radius_msg_get_attr_ptr(
554 : msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
555 : &buf, &len, NULL) == 0) {
556 1 : cache->radius_cui = os_zalloc(len + 1);
557 1 : if (cache->radius_cui)
558 1 : os_memcpy(cache->radius_cui, buf, len);
559 : }
560 :
561 7 : if (hapd->conf->wpa_psk_radius == PSK_RADIUS_REQUIRED &&
562 2 : !cache->psk)
563 0 : cache->accepted = HOSTAPD_ACL_REJECT;
564 : } else
565 0 : cache->accepted = HOSTAPD_ACL_REJECT;
566 5 : cache->next = hapd->acl_cache;
567 5 : 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 5 : wpa_printf(MSG_DEBUG, "Re-sending authentication frame after "
576 : "successful RADIUS ACL query");
577 5 : 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 5 : if (prev == NULL)
583 5 : hapd->acl_queries = query->next;
584 : else
585 0 : prev->next = query->next;
586 :
587 5 : hostapd_acl_query_free(query);
588 :
589 5 : 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 : */
599 1248 : int hostapd_acl_init(struct hostapd_data *hapd)
600 : {
601 : #ifndef CONFIG_NO_RADIUS
602 983 : if (radius_client_register(hapd->radius, RADIUS_AUTH,
603 : hostapd_acl_recv_radius, hapd))
604 0 : return -1;
605 :
606 983 : eloop_register_timeout(10, 0, hostapd_acl_expire, hapd, NULL);
607 : #endif /* CONFIG_NO_RADIUS */
608 :
609 1248 : return 0;
610 : }
611 :
612 :
613 : /**
614 : * hostapd_acl_deinit - Deinitialize IEEE 802.11 ACL
615 : * @hapd: hostapd BSS data
616 : */
617 1252 : void hostapd_acl_deinit(struct hostapd_data *hapd)
618 : {
619 : struct hostapd_acl_query_data *query, *prev;
620 :
621 : #ifndef CONFIG_NO_RADIUS
622 987 : eloop_cancel_timeout(hostapd_acl_expire, hapd, NULL);
623 :
624 987 : hostapd_acl_cache_free(hapd->acl_cache);
625 : #endif /* CONFIG_NO_RADIUS */
626 :
627 1252 : query = hapd->acl_queries;
628 2504 : while (query) {
629 0 : prev = query;
630 0 : query = query->next;
631 0 : hostapd_acl_query_free(prev);
632 : }
633 1252 : }
634 :
635 :
636 7022 : void hostapd_free_psk_list(struct hostapd_sta_wpa_psk_short *psk)
637 : {
638 14048 : while (psk) {
639 4 : struct hostapd_sta_wpa_psk_short *prev = psk;
640 4 : psk = psk->next;
641 4 : os_free(prev);
642 : }
643 7022 : }
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