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 "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 10 : static void hostapd_acl_cache_free_entry(struct hostapd_cached_radius_acl *e)
56 : {
57 10 : os_free(e->identity);
58 10 : os_free(e->radius_cui);
59 10 : hostapd_free_psk_list(e->psk);
60 10 : os_free(e);
61 10 : }
62 :
63 :
64 2046 : static void hostapd_acl_cache_free(struct hostapd_cached_radius_acl *acl_cache)
65 : {
66 : struct hostapd_cached_radius_acl *prev;
67 :
68 4102 : while (acl_cache) {
69 10 : prev = acl_cache;
70 10 : acl_cache = acl_cache->next;
71 10 : hostapd_acl_cache_free_entry(prev);
72 : }
73 2046 : }
74 :
75 :
76 19 : static void copy_psk_list(struct hostapd_sta_wpa_psk_short **psk,
77 : struct hostapd_sta_wpa_psk_short *src)
78 : {
79 19 : if (!psk)
80 19 : return;
81 :
82 19 : if (src)
83 2 : src->ref++;
84 :
85 19 : *psk = src;
86 : }
87 :
88 :
89 29 : 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 29 : os_get_reltime(&now);
100 :
101 68 : for (entry = hapd->acl_cache; entry; entry = entry->next) {
102 24 : if (os_memcmp(entry->addr, addr, ETH_ALEN) != 0)
103 5 : continue;
104 :
105 19 : if (os_reltime_expired(&now, &entry->timestamp,
106 : RADIUS_ACL_TIMEOUT))
107 0 : return -1; /* entry has expired */
108 19 : if (entry->accepted == HOSTAPD_ACL_ACCEPT_TIMEOUT)
109 0 : if (session_timeout)
110 0 : *session_timeout = entry->session_timeout;
111 19 : if (acct_interim_interval)
112 19 : *acct_interim_interval =
113 19 : entry->acct_interim_interval;
114 19 : if (vlan_id)
115 19 : *vlan_id = entry->vlan_id;
116 19 : copy_psk_list(psk, entry->psk);
117 19 : if (identity) {
118 19 : if (entry->identity)
119 7 : *identity = os_strdup(entry->identity);
120 : else
121 12 : *identity = NULL;
122 : }
123 19 : if (radius_cui) {
124 19 : if (entry->radius_cui)
125 7 : *radius_cui = os_strdup(entry->radius_cui);
126 : else
127 12 : *radius_cui = NULL;
128 : }
129 19 : return entry->accepted;
130 : }
131 :
132 10 : return -1;
133 : }
134 : #endif /* CONFIG_NO_RADIUS */
135 :
136 :
137 10 : static void hostapd_acl_query_free(struct hostapd_acl_query_data *query)
138 : {
139 10 : if (query == NULL)
140 10 : return;
141 10 : os_free(query->auth_msg);
142 10 : os_free(query);
143 : }
144 :
145 :
146 : #ifndef CONFIG_NO_RADIUS
147 10 : 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 10 : query->radius_id = radius_client_get_id(hapd->radius);
154 10 : msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST, query->radius_id);
155 10 : if (msg == NULL)
156 0 : return -1;
157 :
158 10 : if (radius_msg_make_authenticator(msg) < 0) {
159 0 : wpa_printf(MSG_INFO, "Could not make Request Authenticator");
160 0 : goto fail;
161 : }
162 :
163 10 : os_snprintf(buf, sizeof(buf), RADIUS_ADDR_FORMAT, MAC2STR(addr));
164 10 : if (!radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME, (u8 *) buf,
165 : os_strlen(buf))) {
166 0 : wpa_printf(MSG_DEBUG, "Could not add User-Name");
167 0 : goto fail;
168 : }
169 :
170 20 : if (!radius_msg_add_attr_user_password(
171 : msg, (u8 *) buf, os_strlen(buf),
172 10 : hapd->conf->radius->auth_server->shared_secret,
173 10 : hapd->conf->radius->auth_server->shared_secret_len)) {
174 0 : wpa_printf(MSG_DEBUG, "Could not add User-Password");
175 0 : goto fail;
176 : }
177 :
178 10 : if (add_common_radius_attr(hapd, hapd->conf->radius_auth_req_attr,
179 : NULL, msg) < 0)
180 0 : goto fail;
181 :
182 60 : os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
183 60 : MAC2STR(addr));
184 10 : if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
185 : (u8 *) buf, os_strlen(buf))) {
186 0 : wpa_printf(MSG_DEBUG, "Could not add Calling-Station-Id");
187 0 : goto fail;
188 : }
189 :
190 10 : os_snprintf(buf, sizeof(buf), "CONNECT 11Mbps 802.11b");
191 10 : if (!radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
192 : (u8 *) buf, os_strlen(buf))) {
193 0 : wpa_printf(MSG_DEBUG, "Could not add Connect-Info");
194 0 : goto fail;
195 : }
196 :
197 10 : if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, addr) < 0)
198 0 : goto fail;
199 10 : return 0;
200 :
201 : fail:
202 0 : radius_msg_free(msg);
203 0 : 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 5278 : int hostapd_check_acl(struct hostapd_data *hapd, const u8 *addr,
216 : struct vlan_description *vlan_id)
217 : {
218 5278 : if (hostapd_maclist_found(hapd->conf->accept_mac,
219 5278 : hapd->conf->num_accept_mac, addr, vlan_id))
220 157 : return HOSTAPD_ACL_ACCEPT;
221 :
222 5121 : if (hostapd_maclist_found(hapd->conf->deny_mac,
223 5121 : hapd->conf->num_deny_mac, addr, vlan_id))
224 5 : return HOSTAPD_ACL_REJECT;
225 :
226 5116 : if (hapd->conf->macaddr_acl == ACCEPT_UNLESS_DENIED)
227 5082 : return HOSTAPD_ACL_ACCEPT;
228 34 : if (hapd->conf->macaddr_acl == DENY_UNLESS_ACCEPTED)
229 5 : return HOSTAPD_ACL_REJECT;
230 :
231 29 : 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 : * Returns: HOSTAPD_ACL_ACCEPT, HOSTAPD_ACL_REJECT, or HOSTAPD_ACL_PENDING
248 : *
249 : * The caller is responsible for freeing the returned *identity and *radius_cui
250 : * values with os_free().
251 : */
252 5278 : int hostapd_allowed_address(struct hostapd_data *hapd, const u8 *addr,
253 : const u8 *msg, size_t len, u32 *session_timeout,
254 : u32 *acct_interim_interval,
255 : struct vlan_description *vlan_id,
256 : struct hostapd_sta_wpa_psk_short **psk,
257 : char **identity, char **radius_cui)
258 : {
259 : int res;
260 :
261 5278 : if (session_timeout)
262 5278 : *session_timeout = 0;
263 5278 : if (acct_interim_interval)
264 5278 : *acct_interim_interval = 0;
265 5278 : if (vlan_id)
266 5278 : os_memset(vlan_id, 0, sizeof(*vlan_id));
267 5278 : if (psk)
268 5278 : *psk = NULL;
269 5278 : if (identity)
270 5278 : *identity = NULL;
271 5278 : if (radius_cui)
272 5278 : *radius_cui = NULL;
273 :
274 5278 : res = hostapd_check_acl(hapd, addr, vlan_id);
275 5278 : if (res != HOSTAPD_ACL_PENDING)
276 5249 : return res;
277 :
278 29 : if (hapd->conf->macaddr_acl == USE_EXTERNAL_RADIUS_AUTH) {
279 : #ifdef CONFIG_NO_RADIUS
280 0 : return HOSTAPD_ACL_REJECT;
281 : #else /* CONFIG_NO_RADIUS */
282 : struct hostapd_acl_query_data *query;
283 :
284 : /* Check whether ACL cache has an entry for this station */
285 29 : res = hostapd_acl_cache_get(hapd, addr, session_timeout,
286 : acct_interim_interval, vlan_id, psk,
287 : identity, radius_cui);
288 29 : if (res == HOSTAPD_ACL_ACCEPT ||
289 : res == HOSTAPD_ACL_ACCEPT_TIMEOUT)
290 8 : return res;
291 21 : if (res == HOSTAPD_ACL_REJECT)
292 11 : return HOSTAPD_ACL_REJECT;
293 :
294 10 : query = hapd->acl_queries;
295 20 : while (query) {
296 0 : if (os_memcmp(query->addr, addr, ETH_ALEN) == 0) {
297 : /* pending query in RADIUS retransmit queue;
298 : * do not generate a new one */
299 0 : if (identity) {
300 0 : os_free(*identity);
301 0 : *identity = NULL;
302 : }
303 0 : if (radius_cui) {
304 0 : os_free(*radius_cui);
305 0 : *radius_cui = NULL;
306 : }
307 0 : return HOSTAPD_ACL_PENDING;
308 : }
309 0 : query = query->next;
310 : }
311 :
312 10 : if (!hapd->conf->radius->auth_server)
313 0 : return HOSTAPD_ACL_REJECT;
314 :
315 : /* No entry in the cache - query external RADIUS server */
316 10 : query = os_zalloc(sizeof(*query));
317 10 : if (query == NULL) {
318 0 : wpa_printf(MSG_ERROR, "malloc for query data failed");
319 0 : return HOSTAPD_ACL_REJECT;
320 : }
321 10 : os_get_reltime(&query->timestamp);
322 10 : os_memcpy(query->addr, addr, ETH_ALEN);
323 10 : if (hostapd_radius_acl_query(hapd, addr, query)) {
324 0 : wpa_printf(MSG_DEBUG, "Failed to send Access-Request "
325 : "for ACL query.");
326 0 : hostapd_acl_query_free(query);
327 0 : return HOSTAPD_ACL_REJECT;
328 : }
329 :
330 10 : query->auth_msg = os_malloc(len);
331 10 : if (query->auth_msg == NULL) {
332 0 : wpa_printf(MSG_ERROR, "Failed to allocate memory for "
333 : "auth frame.");
334 0 : hostapd_acl_query_free(query);
335 0 : return HOSTAPD_ACL_REJECT;
336 : }
337 10 : os_memcpy(query->auth_msg, msg, len);
338 10 : query->auth_msg_len = len;
339 10 : query->next = hapd->acl_queries;
340 10 : hapd->acl_queries = query;
341 :
342 : /* Queued data will be processed in hostapd_acl_recv_radius()
343 : * when RADIUS server replies to the sent Access-Request. */
344 10 : return HOSTAPD_ACL_PENDING;
345 : #endif /* CONFIG_NO_RADIUS */
346 : }
347 :
348 0 : return HOSTAPD_ACL_REJECT;
349 : }
350 :
351 :
352 : #ifndef CONFIG_NO_RADIUS
353 1933 : static void hostapd_acl_expire_cache(struct hostapd_data *hapd,
354 : struct os_reltime *now)
355 : {
356 : struct hostapd_cached_radius_acl *prev, *entry, *tmp;
357 :
358 1933 : prev = NULL;
359 1933 : entry = hapd->acl_cache;
360 :
361 3867 : while (entry) {
362 1 : if (os_reltime_expired(now, &entry->timestamp,
363 : RADIUS_ACL_TIMEOUT)) {
364 0 : wpa_printf(MSG_DEBUG, "Cached ACL entry for " MACSTR
365 0 : " has expired.", MAC2STR(entry->addr));
366 0 : if (prev)
367 0 : prev->next = entry->next;
368 : else
369 0 : hapd->acl_cache = entry->next;
370 0 : hostapd_drv_set_radius_acl_expire(hapd, entry->addr);
371 0 : tmp = entry;
372 0 : entry = entry->next;
373 0 : hostapd_acl_cache_free_entry(tmp);
374 0 : continue;
375 : }
376 :
377 1 : prev = entry;
378 1 : entry = entry->next;
379 : }
380 1933 : }
381 :
382 :
383 1933 : static void hostapd_acl_expire_queries(struct hostapd_data *hapd,
384 : struct os_reltime *now)
385 : {
386 : struct hostapd_acl_query_data *prev, *entry, *tmp;
387 :
388 1933 : prev = NULL;
389 1933 : entry = hapd->acl_queries;
390 :
391 3866 : while (entry) {
392 0 : if (os_reltime_expired(now, &entry->timestamp,
393 : RADIUS_ACL_TIMEOUT)) {
394 0 : wpa_printf(MSG_DEBUG, "ACL query for " MACSTR
395 0 : " has expired.", MAC2STR(entry->addr));
396 0 : if (prev)
397 0 : prev->next = entry->next;
398 : else
399 0 : hapd->acl_queries = entry->next;
400 :
401 0 : tmp = entry;
402 0 : entry = entry->next;
403 0 : hostapd_acl_query_free(tmp);
404 0 : continue;
405 : }
406 :
407 0 : prev = entry;
408 0 : entry = entry->next;
409 : }
410 1933 : }
411 :
412 :
413 : /**
414 : * hostapd_acl_expire - ACL cache expiration callback
415 : * @hapd: struct hostapd_data *
416 : */
417 1933 : void hostapd_acl_expire(struct hostapd_data *hapd)
418 : {
419 : struct os_reltime now;
420 :
421 1933 : os_get_reltime(&now);
422 1933 : hostapd_acl_expire_cache(hapd, &now);
423 1933 : hostapd_acl_expire_queries(hapd, &now);
424 1933 : }
425 :
426 :
427 10 : static void decode_tunnel_passwords(struct hostapd_data *hapd,
428 : const u8 *shared_secret,
429 : size_t shared_secret_len,
430 : struct radius_msg *msg,
431 : struct radius_msg *req,
432 : struct hostapd_cached_radius_acl *cache)
433 : {
434 : int passphraselen;
435 : char *passphrase;
436 : size_t i;
437 : struct hostapd_sta_wpa_psk_short *psk;
438 :
439 : /*
440 : * Decode all tunnel passwords as PSK and save them into a linked list.
441 : */
442 13 : for (i = 0; ; i++) {
443 13 : passphrase = radius_msg_get_tunnel_password(
444 : msg, &passphraselen, shared_secret, shared_secret_len,
445 : req, i);
446 : /*
447 : * Passphrase is NULL iff there is no i-th Tunnel-Password
448 : * attribute in msg.
449 : */
450 13 : if (passphrase == NULL)
451 10 : break;
452 :
453 : /*
454 : * Passphase should be 8..63 chars (to be hashed with SSID)
455 : * or 64 chars hex string (no separate hashing with SSID).
456 : */
457 :
458 5 : if (passphraselen < MIN_PASSPHRASE_LEN ||
459 2 : passphraselen > MAX_PASSPHRASE_LEN + 1)
460 : goto free_pass;
461 :
462 : /*
463 : * passphrase does not contain the NULL termination.
464 : * Add it here as pbkdf2_sha1() requires it.
465 : */
466 2 : psk = os_zalloc(sizeof(struct hostapd_sta_wpa_psk_short));
467 2 : if (psk) {
468 2 : if ((passphraselen == MAX_PASSPHRASE_LEN + 1) &&
469 0 : (hexstr2bin(passphrase, psk->psk, PMK_LEN) < 0)) {
470 0 : hostapd_logger(hapd, cache->addr,
471 : HOSTAPD_MODULE_RADIUS,
472 : HOSTAPD_LEVEL_WARNING,
473 : "invalid hex string (%d chars) in Tunnel-Password",
474 : passphraselen);
475 0 : goto skip;
476 2 : } else if (passphraselen <= MAX_PASSPHRASE_LEN) {
477 2 : os_memcpy(psk->passphrase, passphrase,
478 : passphraselen);
479 2 : psk->is_passphrase = 1;
480 : }
481 2 : psk->next = cache->psk;
482 2 : cache->psk = psk;
483 2 : psk = NULL;
484 : }
485 : skip:
486 2 : os_free(psk);
487 : free_pass:
488 3 : os_free(passphrase);
489 3 : }
490 10 : }
491 :
492 :
493 : /**
494 : * hostapd_acl_recv_radius - Process incoming RADIUS Authentication messages
495 : * @msg: RADIUS response message
496 : * @req: RADIUS request message
497 : * @shared_secret: RADIUS shared secret
498 : * @shared_secret_len: Length of shared_secret in octets
499 : * @data: Context data (struct hostapd_data *)
500 : * Returns: RADIUS_RX_PROCESSED if RADIUS message was a reply to ACL query (and
501 : * was processed here) or RADIUS_RX_UNKNOWN if not.
502 : */
503 : static RadiusRxResult
504 7151 : hostapd_acl_recv_radius(struct radius_msg *msg, struct radius_msg *req,
505 : const u8 *shared_secret, size_t shared_secret_len,
506 : void *data)
507 : {
508 7151 : struct hostapd_data *hapd = data;
509 : struct hostapd_acl_query_data *query, *prev;
510 : struct hostapd_cached_radius_acl *cache;
511 7151 : struct radius_hdr *hdr = radius_msg_get_hdr(msg);
512 : int *untagged, *tagged, *notempty;
513 :
514 7151 : query = hapd->acl_queries;
515 7151 : prev = NULL;
516 14302 : while (query) {
517 10 : if (query->radius_id == hdr->identifier)
518 10 : break;
519 0 : prev = query;
520 0 : query = query->next;
521 : }
522 7151 : if (query == NULL)
523 7141 : return RADIUS_RX_UNKNOWN;
524 :
525 10 : wpa_printf(MSG_DEBUG, "Found matching Access-Request for RADIUS "
526 10 : "message (id=%d)", query->radius_id);
527 :
528 10 : if (radius_msg_verify(msg, shared_secret, shared_secret_len, req, 0)) {
529 0 : wpa_printf(MSG_INFO, "Incoming RADIUS packet did not have "
530 : "correct authenticator - dropped\n");
531 0 : return RADIUS_RX_INVALID_AUTHENTICATOR;
532 : }
533 :
534 10 : if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
535 0 : hdr->code != RADIUS_CODE_ACCESS_REJECT) {
536 0 : wpa_printf(MSG_DEBUG, "Unknown RADIUS message code %d to ACL "
537 0 : "query", hdr->code);
538 0 : return RADIUS_RX_UNKNOWN;
539 : }
540 :
541 : /* Insert Accept/Reject info into ACL cache */
542 10 : cache = os_zalloc(sizeof(*cache));
543 10 : if (cache == NULL) {
544 0 : wpa_printf(MSG_DEBUG, "Failed to add ACL cache entry");
545 0 : goto done;
546 : }
547 10 : os_get_reltime(&cache->timestamp);
548 10 : os_memcpy(cache->addr, query->addr, sizeof(cache->addr));
549 10 : if (hdr->code == RADIUS_CODE_ACCESS_ACCEPT) {
550 : u8 *buf;
551 : size_t len;
552 :
553 10 : if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
554 : &cache->session_timeout) == 0)
555 0 : cache->accepted = HOSTAPD_ACL_ACCEPT_TIMEOUT;
556 : else
557 10 : cache->accepted = HOSTAPD_ACL_ACCEPT;
558 :
559 10 : if (radius_msg_get_attr_int32(
560 : msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
561 0 : &cache->acct_interim_interval) == 0 &&
562 0 : cache->acct_interim_interval < 60) {
563 0 : wpa_printf(MSG_DEBUG, "Ignored too small "
564 : "Acct-Interim-Interval %d for STA " MACSTR,
565 : cache->acct_interim_interval,
566 0 : MAC2STR(query->addr));
567 0 : cache->acct_interim_interval = 0;
568 : }
569 :
570 10 : notempty = &cache->vlan_id.notempty;
571 10 : untagged = &cache->vlan_id.untagged;
572 10 : tagged = cache->vlan_id.tagged;
573 10 : *notempty = !!radius_msg_get_vlanid(msg, untagged,
574 : MAX_NUM_TAGGED_VLAN,
575 : tagged);
576 :
577 10 : decode_tunnel_passwords(hapd, shared_secret, shared_secret_len,
578 : msg, req, cache);
579 :
580 10 : if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME,
581 : &buf, &len, NULL) == 0) {
582 3 : cache->identity = os_zalloc(len + 1);
583 3 : if (cache->identity)
584 3 : os_memcpy(cache->identity, buf, len);
585 : }
586 10 : if (radius_msg_get_attr_ptr(
587 : msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
588 : &buf, &len, NULL) == 0) {
589 3 : cache->radius_cui = os_zalloc(len + 1);
590 3 : if (cache->radius_cui)
591 3 : os_memcpy(cache->radius_cui, buf, len);
592 : }
593 :
594 13 : if (hapd->conf->wpa_psk_radius == PSK_RADIUS_REQUIRED &&
595 3 : !cache->psk)
596 1 : cache->accepted = HOSTAPD_ACL_REJECT;
597 :
598 11 : if (cache->vlan_id.notempty &&
599 1 : !hostapd_vlan_valid(hapd->conf->vlan, &cache->vlan_id)) {
600 0 : hostapd_logger(hapd, query->addr,
601 : HOSTAPD_MODULE_RADIUS,
602 : HOSTAPD_LEVEL_INFO,
603 : "Invalid VLAN %d%s received from RADIUS server",
604 : cache->vlan_id.untagged,
605 0 : cache->vlan_id.tagged[0] ? "+" : "");
606 0 : os_memset(&cache->vlan_id, 0, sizeof(cache->vlan_id));
607 : }
608 13 : if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_REQUIRED &&
609 3 : !cache->vlan_id.notempty)
610 2 : cache->accepted = HOSTAPD_ACL_REJECT;
611 : } else
612 0 : cache->accepted = HOSTAPD_ACL_REJECT;
613 10 : cache->next = hapd->acl_cache;
614 10 : hapd->acl_cache = cache;
615 :
616 : #ifdef CONFIG_DRIVER_RADIUS_ACL
617 : hostapd_drv_set_radius_acl_auth(hapd, query->addr, cache->accepted,
618 : cache->session_timeout);
619 : #else /* CONFIG_DRIVER_RADIUS_ACL */
620 : #ifdef NEED_AP_MLME
621 : /* Re-send original authentication frame for 802.11 processing */
622 10 : wpa_printf(MSG_DEBUG, "Re-sending authentication frame after "
623 : "successful RADIUS ACL query");
624 10 : ieee802_11_mgmt(hapd, query->auth_msg, query->auth_msg_len, NULL);
625 : #endif /* NEED_AP_MLME */
626 : #endif /* CONFIG_DRIVER_RADIUS_ACL */
627 :
628 : done:
629 10 : if (prev == NULL)
630 10 : hapd->acl_queries = query->next;
631 : else
632 0 : prev->next = query->next;
633 :
634 10 : hostapd_acl_query_free(query);
635 :
636 10 : return RADIUS_RX_PROCESSED;
637 : }
638 : #endif /* CONFIG_NO_RADIUS */
639 :
640 :
641 : /**
642 : * hostapd_acl_init: Initialize IEEE 802.11 ACL
643 : * @hapd: hostapd BSS data
644 : * Returns: 0 on success, -1 on failure
645 : */
646 2655 : int hostapd_acl_init(struct hostapd_data *hapd)
647 : {
648 : #ifndef CONFIG_NO_RADIUS
649 2042 : if (radius_client_register(hapd->radius, RADIUS_AUTH,
650 : hostapd_acl_recv_radius, hapd))
651 0 : return -1;
652 : #endif /* CONFIG_NO_RADIUS */
653 :
654 2655 : return 0;
655 : }
656 :
657 :
658 : /**
659 : * hostapd_acl_deinit - Deinitialize IEEE 802.11 ACL
660 : * @hapd: hostapd BSS data
661 : */
662 2659 : void hostapd_acl_deinit(struct hostapd_data *hapd)
663 : {
664 : struct hostapd_acl_query_data *query, *prev;
665 :
666 : #ifndef CONFIG_NO_RADIUS
667 2046 : hostapd_acl_cache_free(hapd->acl_cache);
668 : #endif /* CONFIG_NO_RADIUS */
669 :
670 2659 : query = hapd->acl_queries;
671 5318 : while (query) {
672 0 : prev = query;
673 0 : query = query->next;
674 0 : hostapd_acl_query_free(prev);
675 : }
676 2659 : }
677 :
678 :
679 14333 : void hostapd_free_psk_list(struct hostapd_sta_wpa_psk_short *psk)
680 : {
681 14333 : if (psk && psk->ref) {
682 : /* This will be freed when the last reference is dropped. */
683 2 : psk->ref--;
684 14335 : return;
685 : }
686 :
687 28664 : while (psk) {
688 2 : struct hostapd_sta_wpa_psk_short *prev = psk;
689 2 : psk = psk->next;
690 2 : os_free(prev);
691 : }
692 : }
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