2 * hostapd / RADIUS authentication server
3 * Copyright (c) 2005-2008, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
22 #include "eap_server/eap.h"
23 #include "radius_server.h"
25 #define RADIUS_SESSION_TIMEOUT 60
26 #define RADIUS_MAX_SESSION 100
27 #define RADIUS_MAX_MSG_LEN 3000
29 static struct eapol_callbacks radius_server_eapol_cb;
32 struct radius_server_data;
34 struct radius_server_counters {
37 u32 dup_access_requests;
40 u32 access_challenges;
41 u32 malformed_access_requests;
42 u32 bad_authenticators;
47 struct radius_session {
48 struct radius_session *next;
49 struct radius_client *client;
50 struct radius_server_data *server;
53 struct eap_eapol_interface *eap_if;
55 struct radius_msg *last_msg;
58 struct sockaddr_storage last_from;
59 socklen_t last_fromlen;
61 struct radius_msg *last_reply;
62 u8 last_authenticator[16];
65 struct radius_client {
66 struct radius_client *next;
70 struct in6_addr addr6;
71 struct in6_addr mask6;
72 #endif /* CONFIG_IPV6 */
74 int shared_secret_len;
75 struct radius_session *sessions;
76 struct radius_server_counters counters;
79 struct radius_server_data {
81 struct radius_client *clients;
82 unsigned int next_sess_id;
85 void *eap_sim_db_priv;
87 u8 *pac_opaque_encr_key;
91 int pac_key_refresh_time;
92 int eap_sim_aka_result_ind;
95 struct os_time start_time;
96 struct radius_server_counters counters;
97 int (*get_eap_user)(void *ctx, const u8 *identity, size_t identity_len,
98 int phase2, struct eap_user *user);
102 extern int wpa_debug_level;
104 #define RADIUS_DEBUG(args...) \
105 wpa_printf(MSG_DEBUG, "RADIUS SRV: " args)
106 #define RADIUS_ERROR(args...) \
107 wpa_printf(MSG_ERROR, "RADIUS SRV: " args)
108 #define RADIUS_DUMP(args...) \
109 wpa_hexdump(MSG_MSGDUMP, "RADIUS SRV: " args)
110 #define RADIUS_DUMP_ASCII(args...) \
111 wpa_hexdump_ascii(MSG_MSGDUMP, "RADIUS SRV: " args)
114 static void radius_server_session_timeout(void *eloop_ctx, void *timeout_ctx);
118 static struct radius_client *
119 radius_server_get_client(struct radius_server_data *data, struct in_addr *addr,
122 struct radius_client *client = data->clients;
127 struct in6_addr *addr6;
130 addr6 = (struct in6_addr *) addr;
131 for (i = 0; i < 16; i++) {
132 if ((addr6->s6_addr[i] &
133 client->mask6.s6_addr[i]) !=
134 (client->addr6.s6_addr[i] &
135 client->mask6.s6_addr[i])) {
144 #endif /* CONFIG_IPV6 */
145 if (!ipv6 && (client->addr.s_addr & client->mask.s_addr) ==
146 (addr->s_addr & client->mask.s_addr)) {
150 client = client->next;
157 static struct radius_session *
158 radius_server_get_session(struct radius_client *client, unsigned int sess_id)
160 struct radius_session *sess = client->sessions;
163 if (sess->sess_id == sess_id) {
173 static void radius_server_session_free(struct radius_server_data *data,
174 struct radius_session *sess)
176 eloop_cancel_timeout(radius_server_session_timeout, data, sess);
177 eap_server_sm_deinit(sess->eap);
178 if (sess->last_msg) {
179 radius_msg_free(sess->last_msg);
180 os_free(sess->last_msg);
182 os_free(sess->last_from_addr);
183 if (sess->last_reply) {
184 radius_msg_free(sess->last_reply);
185 os_free(sess->last_reply);
192 static void radius_server_session_remove_timeout(void *eloop_ctx,
195 static void radius_server_session_remove(struct radius_server_data *data,
196 struct radius_session *sess)
198 struct radius_client *client = sess->client;
199 struct radius_session *session, *prev;
201 eloop_cancel_timeout(radius_server_session_remove_timeout, data, sess);
204 session = client->sessions;
206 if (session == sess) {
208 client->sessions = sess->next;
210 prev->next = sess->next;
212 radius_server_session_free(data, sess);
216 session = session->next;
221 static void radius_server_session_remove_timeout(void *eloop_ctx,
224 struct radius_server_data *data = eloop_ctx;
225 struct radius_session *sess = timeout_ctx;
226 RADIUS_DEBUG("Removing completed session 0x%x", sess->sess_id);
227 radius_server_session_remove(data, sess);
231 static void radius_server_session_timeout(void *eloop_ctx, void *timeout_ctx)
233 struct radius_server_data *data = eloop_ctx;
234 struct radius_session *sess = timeout_ctx;
236 RADIUS_DEBUG("Timing out authentication session 0x%x", sess->sess_id);
237 radius_server_session_remove(data, sess);
241 static struct radius_session *
242 radius_server_new_session(struct radius_server_data *data,
243 struct radius_client *client)
245 struct radius_session *sess;
247 if (data->num_sess >= RADIUS_MAX_SESSION) {
248 RADIUS_DEBUG("Maximum number of existing session - no room "
249 "for a new session");
253 sess = os_zalloc(sizeof(*sess));
258 sess->client = client;
259 sess->sess_id = data->next_sess_id++;
260 sess->next = client->sessions;
261 client->sessions = sess;
262 eloop_register_timeout(RADIUS_SESSION_TIMEOUT, 0,
263 radius_server_session_timeout, data, sess);
269 static struct radius_session *
270 radius_server_get_new_session(struct radius_server_data *data,
271 struct radius_client *client,
272 struct radius_msg *msg)
277 struct radius_session *sess;
278 struct eap_config eap_conf;
280 RADIUS_DEBUG("Creating a new session");
282 user = os_malloc(256);
286 res = radius_msg_get_attr(msg, RADIUS_ATTR_USER_NAME, user, 256);
287 if (res < 0 || res > 256) {
288 RADIUS_DEBUG("Could not get User-Name");
293 RADIUS_DUMP_ASCII("User-Name", user, user_len);
295 res = data->get_eap_user(data->conf_ctx, user, user_len, 0, NULL);
299 RADIUS_DEBUG("Matching user entry found");
300 sess = radius_server_new_session(data, client);
302 RADIUS_DEBUG("Failed to create a new session");
306 RADIUS_DEBUG("User-Name not found from user database");
310 os_memset(&eap_conf, 0, sizeof(eap_conf));
311 eap_conf.ssl_ctx = data->ssl_ctx;
312 eap_conf.eap_sim_db_priv = data->eap_sim_db_priv;
313 eap_conf.backend_auth = TRUE;
314 eap_conf.eap_server = 1;
315 eap_conf.pac_opaque_encr_key = data->pac_opaque_encr_key;
316 eap_conf.eap_fast_a_id = data->eap_fast_a_id;
317 eap_conf.eap_fast_prov = data->eap_fast_prov;
318 eap_conf.pac_key_lifetime = data->pac_key_lifetime;
319 eap_conf.pac_key_refresh_time = data->pac_key_refresh_time;
320 eap_conf.eap_sim_aka_result_ind = data->eap_sim_aka_result_ind;
321 eap_conf.tnc = data->tnc;
322 sess->eap = eap_server_sm_init(sess, &radius_server_eapol_cb,
324 if (sess->eap == NULL) {
325 RADIUS_DEBUG("Failed to initialize EAP state machine for the "
327 radius_server_session_free(data, sess);
330 sess->eap_if = eap_get_interface(sess->eap);
331 sess->eap_if->eapRestart = TRUE;
332 sess->eap_if->portEnabled = TRUE;
334 RADIUS_DEBUG("New session 0x%x initialized", sess->sess_id);
340 static struct radius_msg *
341 radius_server_encapsulate_eap(struct radius_server_data *data,
342 struct radius_client *client,
343 struct radius_session *sess,
344 struct radius_msg *request)
346 struct radius_msg *msg;
348 unsigned int sess_id;
350 if (sess->eap_if->eapFail) {
351 sess->eap_if->eapFail = FALSE;
352 code = RADIUS_CODE_ACCESS_REJECT;
353 } else if (sess->eap_if->eapSuccess) {
354 sess->eap_if->eapSuccess = FALSE;
355 code = RADIUS_CODE_ACCESS_ACCEPT;
357 sess->eap_if->eapReq = FALSE;
358 code = RADIUS_CODE_ACCESS_CHALLENGE;
361 msg = radius_msg_new(code, request->hdr->identifier);
363 RADIUS_DEBUG("Failed to allocate reply message");
367 sess_id = htonl(sess->sess_id);
368 if (code == RADIUS_CODE_ACCESS_CHALLENGE &&
369 !radius_msg_add_attr(msg, RADIUS_ATTR_STATE,
370 (u8 *) &sess_id, sizeof(sess_id))) {
371 RADIUS_DEBUG("Failed to add State attribute");
374 if (sess->eap_if->eapReqData &&
375 !radius_msg_add_eap(msg, wpabuf_head(sess->eap_if->eapReqData),
376 wpabuf_len(sess->eap_if->eapReqData))) {
377 RADIUS_DEBUG("Failed to add EAP-Message attribute");
380 if (code == RADIUS_CODE_ACCESS_ACCEPT && sess->eap_if->eapKeyData) {
382 if (sess->eap_if->eapKeyDataLen > 64) {
385 len = sess->eap_if->eapKeyDataLen / 2;
387 if (!radius_msg_add_mppe_keys(msg, request->hdr->authenticator,
388 (u8 *) client->shared_secret,
389 client->shared_secret_len,
390 sess->eap_if->eapKeyData + len,
391 len, sess->eap_if->eapKeyData,
393 RADIUS_DEBUG("Failed to add MPPE key attributes");
397 if (radius_msg_copy_attr(msg, request, RADIUS_ATTR_PROXY_STATE) < 0) {
398 RADIUS_DEBUG("Failed to copy Proxy-State attribute(s)");
399 radius_msg_free(msg);
404 if (radius_msg_finish_srv(msg, (u8 *) client->shared_secret,
405 client->shared_secret_len,
406 request->hdr->authenticator) < 0) {
407 RADIUS_DEBUG("Failed to add Message-Authenticator attribute");
414 static int radius_server_reject(struct radius_server_data *data,
415 struct radius_client *client,
416 struct radius_msg *request,
417 struct sockaddr *from, socklen_t fromlen,
418 const char *from_addr, int from_port)
420 struct radius_msg *msg;
422 struct eap_hdr eapfail;
424 RADIUS_DEBUG("Reject invalid request from %s:%d",
425 from_addr, from_port);
427 msg = radius_msg_new(RADIUS_CODE_ACCESS_REJECT,
428 request->hdr->identifier);
433 os_memset(&eapfail, 0, sizeof(eapfail));
434 eapfail.code = EAP_CODE_FAILURE;
435 eapfail.identifier = 0;
436 eapfail.length = host_to_be16(sizeof(eapfail));
438 if (!radius_msg_add_eap(msg, (u8 *) &eapfail, sizeof(eapfail))) {
439 RADIUS_DEBUG("Failed to add EAP-Message attribute");
442 if (radius_msg_copy_attr(msg, request, RADIUS_ATTR_PROXY_STATE) < 0) {
443 RADIUS_DEBUG("Failed to copy Proxy-State attribute(s)");
444 radius_msg_free(msg);
449 if (radius_msg_finish_srv(msg, (u8 *) client->shared_secret,
450 client->shared_secret_len,
451 request->hdr->authenticator) < 0) {
452 RADIUS_DEBUG("Failed to add Message-Authenticator attribute");
455 if (wpa_debug_level <= MSG_MSGDUMP) {
456 radius_msg_dump(msg);
459 data->counters.access_rejects++;
460 client->counters.access_rejects++;
461 if (sendto(data->auth_sock, msg->buf, msg->buf_used, 0,
462 (struct sockaddr *) from, sizeof(*from)) < 0) {
463 perror("sendto[RADIUS SRV]");
467 radius_msg_free(msg);
474 static int radius_server_request(struct radius_server_data *data,
475 struct radius_msg *msg,
476 struct sockaddr *from, socklen_t fromlen,
477 struct radius_client *client,
478 const char *from_addr, int from_port,
479 struct radius_session *force_sess)
483 int res, state_included = 0;
486 struct radius_session *sess;
487 struct radius_msg *reply;
492 res = radius_msg_get_attr(msg, RADIUS_ATTR_STATE, statebuf,
494 state_included = res >= 0;
495 if (res == sizeof(statebuf)) {
496 state = WPA_GET_BE32(statebuf);
497 sess = radius_server_get_session(client, state);
504 RADIUS_DEBUG("Request for session 0x%x", sess->sess_id);
505 } else if (state_included) {
506 RADIUS_DEBUG("State attribute included but no session found");
507 radius_server_reject(data, client, msg, from, fromlen,
508 from_addr, from_port);
511 sess = radius_server_get_new_session(data, client, msg);
513 RADIUS_DEBUG("Could not create a new session");
514 radius_server_reject(data, client, msg, from, fromlen,
515 from_addr, from_port);
520 if (sess->last_from_port == from_port &&
521 sess->last_identifier == msg->hdr->identifier &&
522 os_memcmp(sess->last_authenticator, msg->hdr->authenticator, 16) ==
524 RADIUS_DEBUG("Duplicate message from %s", from_addr);
525 data->counters.dup_access_requests++;
526 client->counters.dup_access_requests++;
528 if (sess->last_reply) {
529 res = sendto(data->auth_sock, sess->last_reply->buf,
530 sess->last_reply->buf_used, 0,
531 (struct sockaddr *) from, fromlen);
533 perror("sendto[RADIUS SRV]");
538 RADIUS_DEBUG("No previous reply available for duplicate "
543 eap = radius_msg_get_eap(msg, &eap_len);
545 RADIUS_DEBUG("No EAP-Message in RADIUS packet from %s",
547 data->counters.packets_dropped++;
548 client->counters.packets_dropped++;
552 RADIUS_DUMP("Received EAP data", eap, eap_len);
554 /* FIX: if Code is Request, Success, or Failure, send Access-Reject;
555 * RFC3579 Sect. 2.6.2.
556 * Include EAP-Response/Nak with no preferred method if
558 * If code is not 1-4, discard the packet silently.
559 * Or is this already done by the EAP state machine? */
561 wpabuf_free(sess->eap_if->eapRespData);
562 sess->eap_if->eapRespData = wpabuf_alloc_ext_data(eap, eap_len);
563 if (sess->eap_if->eapRespData == NULL)
566 sess->eap_if->eapResp = TRUE;
567 eap_server_sm_step(sess->eap);
569 if ((sess->eap_if->eapReq || sess->eap_if->eapSuccess ||
570 sess->eap_if->eapFail) && sess->eap_if->eapReqData) {
571 RADIUS_DUMP("EAP data from the state machine",
572 wpabuf_head(sess->eap_if->eapReqData),
573 wpabuf_len(sess->eap_if->eapReqData));
574 } else if (sess->eap_if->eapFail) {
575 RADIUS_DEBUG("No EAP data from the state machine, but eapFail "
577 } else if (eap_sm_method_pending(sess->eap)) {
578 if (sess->last_msg) {
579 radius_msg_free(sess->last_msg);
580 os_free(sess->last_msg);
582 sess->last_msg = msg;
583 sess->last_from_port = from_port;
584 os_free(sess->last_from_addr);
585 sess->last_from_addr = os_strdup(from_addr);
586 sess->last_fromlen = fromlen;
587 os_memcpy(&sess->last_from, from, fromlen);
590 RADIUS_DEBUG("No EAP data from the state machine - ignore this"
591 " Access-Request silently (assuming it was a "
593 data->counters.packets_dropped++;
594 client->counters.packets_dropped++;
598 reply = radius_server_encapsulate_eap(data, client, sess, msg);
601 RADIUS_DEBUG("Reply to %s:%d", from_addr, from_port);
602 if (wpa_debug_level <= MSG_MSGDUMP) {
603 radius_msg_dump(reply);
606 switch (reply->hdr->code) {
607 case RADIUS_CODE_ACCESS_ACCEPT:
608 data->counters.access_accepts++;
609 client->counters.access_accepts++;
611 case RADIUS_CODE_ACCESS_REJECT:
612 data->counters.access_rejects++;
613 client->counters.access_rejects++;
615 case RADIUS_CODE_ACCESS_CHALLENGE:
616 data->counters.access_challenges++;
617 client->counters.access_challenges++;
620 res = sendto(data->auth_sock, reply->buf, reply->buf_used, 0,
621 (struct sockaddr *) from, fromlen);
623 perror("sendto[RADIUS SRV]");
625 if (sess->last_reply) {
626 radius_msg_free(sess->last_reply);
627 os_free(sess->last_reply);
629 sess->last_reply = reply;
630 sess->last_from_port = from_port;
631 sess->last_identifier = msg->hdr->identifier;
632 os_memcpy(sess->last_authenticator, msg->hdr->authenticator,
635 data->counters.packets_dropped++;
636 client->counters.packets_dropped++;
639 if (sess->eap_if->eapSuccess || sess->eap_if->eapFail) {
640 RADIUS_DEBUG("Removing completed session 0x%x after timeout",
642 eloop_cancel_timeout(radius_server_session_remove_timeout,
644 eloop_register_timeout(10, 0,
645 radius_server_session_remove_timeout,
653 static void radius_server_receive_auth(int sock, void *eloop_ctx,
656 struct radius_server_data *data = eloop_ctx;
658 struct sockaddr_storage from;
661 struct radius_client *client = NULL;
662 struct radius_msg *msg = NULL;
666 buf = os_malloc(RADIUS_MAX_MSG_LEN);
671 fromlen = sizeof(from);
672 len = recvfrom(sock, buf, RADIUS_MAX_MSG_LEN, 0,
673 (struct sockaddr *) &from, &fromlen);
675 perror("recvfrom[radius_server]");
681 struct sockaddr_in6 *from6 = (struct sockaddr_in6 *) &from;
682 if (inet_ntop(AF_INET6, &from6->sin6_addr, abuf, sizeof(abuf))
685 from_port = ntohs(from6->sin6_port);
686 RADIUS_DEBUG("Received %d bytes from %s:%d",
687 len, abuf, from_port);
689 client = radius_server_get_client(data,
691 &from6->sin6_addr, 1);
693 #endif /* CONFIG_IPV6 */
696 struct sockaddr_in *from4 = (struct sockaddr_in *) &from;
697 os_strlcpy(abuf, inet_ntoa(from4->sin_addr), sizeof(abuf));
698 from_port = ntohs(from4->sin_port);
699 RADIUS_DEBUG("Received %d bytes from %s:%d",
700 len, abuf, from_port);
702 client = radius_server_get_client(data, &from4->sin_addr, 0);
705 RADIUS_DUMP("Received data", buf, len);
707 if (client == NULL) {
708 RADIUS_DEBUG("Unknown client %s - packet ignored", abuf);
709 data->counters.invalid_requests++;
713 msg = radius_msg_parse(buf, len);
715 RADIUS_DEBUG("Parsing incoming RADIUS frame failed");
716 data->counters.malformed_access_requests++;
717 client->counters.malformed_access_requests++;
724 if (wpa_debug_level <= MSG_MSGDUMP) {
725 radius_msg_dump(msg);
728 if (msg->hdr->code != RADIUS_CODE_ACCESS_REQUEST) {
729 RADIUS_DEBUG("Unexpected RADIUS code %d", msg->hdr->code);
730 data->counters.unknown_types++;
731 client->counters.unknown_types++;
735 data->counters.access_requests++;
736 client->counters.access_requests++;
738 if (radius_msg_verify_msg_auth(msg, (u8 *) client->shared_secret,
739 client->shared_secret_len, NULL)) {
740 RADIUS_DEBUG("Invalid Message-Authenticator from %s", abuf);
741 data->counters.bad_authenticators++;
742 client->counters.bad_authenticators++;
746 if (radius_server_request(data, msg, (struct sockaddr *) &from,
747 fromlen, client, abuf, from_port, NULL) ==
749 return; /* msg was stored with the session */
753 radius_msg_free(msg);
760 static int radius_server_open_socket(int port)
763 struct sockaddr_in addr;
765 s = socket(PF_INET, SOCK_DGRAM, 0);
771 os_memset(&addr, 0, sizeof(addr));
772 addr.sin_family = AF_INET;
773 addr.sin_port = htons(port);
774 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
785 static int radius_server_open_socket6(int port)
788 struct sockaddr_in6 addr;
790 s = socket(PF_INET6, SOCK_DGRAM, 0);
792 perror("socket[IPv6]");
796 os_memset(&addr, 0, sizeof(addr));
797 addr.sin6_family = AF_INET6;
798 os_memcpy(&addr.sin6_addr, &in6addr_any, sizeof(in6addr_any));
799 addr.sin6_port = htons(port);
800 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
808 #endif /* CONFIG_IPV6 */
811 static void radius_server_free_sessions(struct radius_server_data *data,
812 struct radius_session *sessions)
814 struct radius_session *session, *prev;
819 session = session->next;
820 radius_server_session_free(data, prev);
825 static void radius_server_free_clients(struct radius_server_data *data,
826 struct radius_client *clients)
828 struct radius_client *client, *prev;
833 client = client->next;
835 radius_server_free_sessions(data, prev->sessions);
836 os_free(prev->shared_secret);
842 static struct radius_client *
843 radius_server_read_clients(const char *client_file, int ipv6)
846 const int buf_size = 1024;
848 struct radius_client *clients, *tail, *entry;
849 int line = 0, mask, failed = 0, i;
852 struct in6_addr addr6;
853 #endif /* CONFIG_IPV6 */
856 f = fopen(client_file, "r");
858 RADIUS_ERROR("Could not open client file '%s'", client_file);
862 buf = os_malloc(buf_size);
868 clients = tail = NULL;
869 while (fgets(buf, buf_size, f)) {
870 /* Configuration file format:
871 * 192.168.1.0/24 secret
873 * fe80::211:22ff:fe33:4455/64 secretipv6
876 buf[buf_size - 1] = '\0';
878 while (*pos != '\0' && *pos != '\n')
882 if (*buf == '\0' || *buf == '#')
886 while ((*pos >= '0' && *pos <= '9') || *pos == '.' ||
887 (*pos >= 'a' && *pos <= 'f') || *pos == ':' ||
888 (*pos >= 'A' && *pos <= 'F')) {
900 mask = strtol(pos, &end, 10);
902 (mask < 0 || mask > (ipv6 ? 128 : 32))) {
908 mask = ipv6 ? 128 : 32;
912 if (!ipv6 && inet_aton(buf, &addr) == 0) {
917 if (ipv6 && inet_pton(AF_INET6, buf, &addr6) <= 0) {
918 if (inet_pton(AF_INET, buf, &addr) <= 0) {
922 /* Convert IPv4 address to IPv6 */
925 os_memset(addr6.s6_addr, 0, 10);
926 addr6.s6_addr[10] = 0xff;
927 addr6.s6_addr[11] = 0xff;
928 os_memcpy(addr6.s6_addr + 12, (char *) &addr.s_addr,
931 #endif /* CONFIG_IPV6 */
933 while (*pos == ' ' || *pos == '\t') {
942 entry = os_zalloc(sizeof(*entry));
947 entry->shared_secret = os_strdup(pos);
948 if (entry->shared_secret == NULL) {
953 entry->shared_secret_len = os_strlen(entry->shared_secret);
954 entry->addr.s_addr = addr.s_addr;
957 for (i = 0; i < mask; i++)
958 val |= 1 << (31 - i);
959 entry->mask.s_addr = htonl(val);
963 int offset = mask / 8;
965 os_memcpy(entry->addr6.s6_addr, addr6.s6_addr, 16);
966 os_memset(entry->mask6.s6_addr, 0xff, offset);
968 for (i = 0; i < (mask % 8); i++)
971 entry->mask6.s6_addr[offset] = val;
973 #endif /* CONFIG_IPV6 */
976 clients = tail = entry;
984 RADIUS_ERROR("Invalid line %d in '%s'", line, client_file);
985 radius_server_free_clients(NULL, clients);
996 struct radius_server_data *
997 radius_server_init(struct radius_server_conf *conf)
999 struct radius_server_data *data;
1003 fprintf(stderr, "RADIUS server compiled without IPv6 "
1007 #endif /* CONFIG_IPV6 */
1009 data = os_zalloc(sizeof(*data));
1013 os_get_time(&data->start_time);
1014 data->conf_ctx = conf->conf_ctx;
1015 data->eap_sim_db_priv = conf->eap_sim_db_priv;
1016 data->ssl_ctx = conf->ssl_ctx;
1017 data->ipv6 = conf->ipv6;
1018 if (conf->pac_opaque_encr_key) {
1019 data->pac_opaque_encr_key = os_malloc(16);
1020 os_memcpy(data->pac_opaque_encr_key, conf->pac_opaque_encr_key,
1023 if (conf->eap_fast_a_id)
1024 data->eap_fast_a_id = os_strdup(conf->eap_fast_a_id);
1025 data->eap_fast_prov = conf->eap_fast_prov;
1026 data->pac_key_lifetime = conf->pac_key_lifetime;
1027 data->pac_key_refresh_time = conf->pac_key_refresh_time;
1028 data->get_eap_user = conf->get_eap_user;
1029 data->eap_sim_aka_result_ind = conf->eap_sim_aka_result_ind;
1030 data->tnc = conf->tnc;
1032 data->clients = radius_server_read_clients(conf->client_file,
1034 if (data->clients == NULL) {
1035 printf("No RADIUS clients configured.\n");
1036 radius_server_deinit(data);
1042 data->auth_sock = radius_server_open_socket6(conf->auth_port);
1044 #endif /* CONFIG_IPV6 */
1045 data->auth_sock = radius_server_open_socket(conf->auth_port);
1046 if (data->auth_sock < 0) {
1047 printf("Failed to open UDP socket for RADIUS authentication "
1049 radius_server_deinit(data);
1052 if (eloop_register_read_sock(data->auth_sock,
1053 radius_server_receive_auth,
1055 radius_server_deinit(data);
1063 void radius_server_deinit(struct radius_server_data *data)
1068 if (data->auth_sock >= 0) {
1069 eloop_unregister_read_sock(data->auth_sock);
1070 close(data->auth_sock);
1073 radius_server_free_clients(data, data->clients);
1075 os_free(data->pac_opaque_encr_key);
1076 os_free(data->eap_fast_a_id);
1081 int radius_server_get_mib(struct radius_server_data *data, char *buf,
1088 struct radius_client *cli;
1090 /* RFC 2619 - RADIUS Authentication Server MIB */
1092 if (data == NULL || buflen == 0)
1099 uptime = (now.sec - data->start_time.sec) * 100 +
1100 ((now.usec - data->start_time.usec) / 10000) % 100;
1101 ret = os_snprintf(pos, end - pos,
1102 "RADIUS-AUTH-SERVER-MIB\n"
1103 "radiusAuthServIdent=hostapd\n"
1104 "radiusAuthServUpTime=%d\n"
1105 "radiusAuthServResetTime=0\n"
1106 "radiusAuthServConfigReset=4\n",
1108 if (ret < 0 || ret >= end - pos) {
1114 ret = os_snprintf(pos, end - pos,
1115 "radiusAuthServTotalAccessRequests=%u\n"
1116 "radiusAuthServTotalInvalidRequests=%u\n"
1117 "radiusAuthServTotalDupAccessRequests=%u\n"
1118 "radiusAuthServTotalAccessAccepts=%u\n"
1119 "radiusAuthServTotalAccessRejects=%u\n"
1120 "radiusAuthServTotalAccessChallenges=%u\n"
1121 "radiusAuthServTotalMalformedAccessRequests=%u\n"
1122 "radiusAuthServTotalBadAuthenticators=%u\n"
1123 "radiusAuthServTotalPacketsDropped=%u\n"
1124 "radiusAuthServTotalUnknownTypes=%u\n",
1125 data->counters.access_requests,
1126 data->counters.invalid_requests,
1127 data->counters.dup_access_requests,
1128 data->counters.access_accepts,
1129 data->counters.access_rejects,
1130 data->counters.access_challenges,
1131 data->counters.malformed_access_requests,
1132 data->counters.bad_authenticators,
1133 data->counters.packets_dropped,
1134 data->counters.unknown_types);
1135 if (ret < 0 || ret >= end - pos) {
1141 for (cli = data->clients, idx = 0; cli; cli = cli->next, idx++) {
1142 char abuf[50], mbuf[50];
1145 if (inet_ntop(AF_INET6, &cli->addr6, abuf,
1146 sizeof(abuf)) == NULL)
1148 if (inet_ntop(AF_INET6, &cli->mask6, abuf,
1149 sizeof(mbuf)) == NULL)
1152 #endif /* CONFIG_IPV6 */
1154 os_strlcpy(abuf, inet_ntoa(cli->addr), sizeof(abuf));
1155 os_strlcpy(mbuf, inet_ntoa(cli->mask), sizeof(mbuf));
1158 ret = os_snprintf(pos, end - pos,
1159 "radiusAuthClientIndex=%u\n"
1160 "radiusAuthClientAddress=%s/%s\n"
1161 "radiusAuthServAccessRequests=%u\n"
1162 "radiusAuthServDupAccessRequests=%u\n"
1163 "radiusAuthServAccessAccepts=%u\n"
1164 "radiusAuthServAccessRejects=%u\n"
1165 "radiusAuthServAccessChallenges=%u\n"
1166 "radiusAuthServMalformedAccessRequests=%u\n"
1167 "radiusAuthServBadAuthenticators=%u\n"
1168 "radiusAuthServPacketsDropped=%u\n"
1169 "radiusAuthServUnknownTypes=%u\n",
1172 cli->counters.access_requests,
1173 cli->counters.dup_access_requests,
1174 cli->counters.access_accepts,
1175 cli->counters.access_rejects,
1176 cli->counters.access_challenges,
1177 cli->counters.malformed_access_requests,
1178 cli->counters.bad_authenticators,
1179 cli->counters.packets_dropped,
1180 cli->counters.unknown_types);
1181 if (ret < 0 || ret >= end - pos) {
1192 static int radius_server_get_eap_user(void *ctx, const u8 *identity,
1193 size_t identity_len, int phase2,
1194 struct eap_user *user)
1196 struct radius_session *sess = ctx;
1197 struct radius_server_data *data = sess->server;
1199 return data->get_eap_user(data->conf_ctx, identity, identity_len,
1204 static struct eapol_callbacks radius_server_eapol_cb =
1206 .get_eap_user = radius_server_get_eap_user,
1210 void radius_server_eap_pending_cb(struct radius_server_data *data, void *ctx)
1212 struct radius_client *cli;
1213 struct radius_session *s, *sess = NULL;
1214 struct radius_msg *msg;
1219 for (cli = data->clients; cli; cli = cli->next) {
1220 for (s = cli->sessions; s; s = s->next) {
1221 if (s->eap == ctx && s->last_msg) {
1233 RADIUS_DEBUG("No session matched callback ctx");
1237 msg = sess->last_msg;
1238 sess->last_msg = NULL;
1239 eap_sm_pending_cb(sess->eap);
1240 if (radius_server_request(data, msg,
1241 (struct sockaddr *) &sess->last_from,
1242 sess->last_fromlen, cli,
1243 sess->last_from_addr,
1244 sess->last_from_port, sess) == -2)
1245 return; /* msg was stored with the session */
1247 radius_msg_free(msg);